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  • 1
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    Global and regional temperature change over the past 4.5 million years (2024)
    American Association for the Advancement of Science (AAAS)
    In:  EPIC3Science, American Association for the Advancement of Science (AAAS), 383(6685), pp. 884-890, ISSN: 0036-8075
    Details
    Publikationsdatum: 2024-03-21
    Beschreibung: Much of our understanding of Cenozoic climate is based on the record of δ18O measured in benthic foraminifera. However, this measurement reflects a combined signal of global temperature and sea level, thus preventing a clear understanding of the interactions and feedbacks of the climate system in causing global temperature change. Our new reconstruction of temperature change over the past 4.5 million years includes two phases of long-term cooling, with the second phase of accelerated cooling during the Middle Pleistocene Transition (1.5 to 0.9 million years ago) being accompanied by a transition from dominant 41,000-year low-amplitude periodicity to dominant 100,000-year high-amplitude periodicity. Changes in the rates of long-term cooling and variability are consistent with changes in the carbon cycle driven initially by geologic processes, followed by additional changes in the Southern Ocean carbon cycle. 〈/jats:p〉
    Repository-Name: EPIC Alfred Wegener Institut
    Materialart: Article , isiRev
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  • 2
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    Hotspots of Floating Plastic Particles across the North Pacific Ocean (2024)
    American Chemical Society (ACS)
    In:  EPIC3Environmental Science & Technology, American Chemical Society (ACS), 58(9), pp. 4302-4313, ISSN: 0013-936X
    Details
    Publikationsdatum: 2024-03-28
    Beschreibung: The pollution of the marine environment with plastic debris is expected to increase, where ocean currents and winds cause their accumulation in convergence zones like the North Pacific Subtropical Gyre (NPSG). Surface-floating plastic (〉330 μm) was collected in the North Pacific Ocean between Vancouver (Canada) and Singapore using a neuston catamaran and identified by Fourier-transform infrared spectroscopy (FT-IR). Baseline concentrations of 41,600–102,700 items km–2 were found, dominated by polyethylene and polypropylene. Higher concentrations (factors 4–10) of plastic items occurred not only in the NPSG (452,800 items km–2) but also in a second area, the Papaha̅naumokua̅kea Marine National Monument (PMNM, 285,200 items km–2). This second maximum was neither reported previously nor predicted by the applied ocean current model. Visual observations of floating debris (〉5 cm; 8–2565 items km–2 and 34–4941 items km–2 including smaller “white bits”) yielded similar patterns of baseline pollution (34–3265 items km–2) and elevated concentrations of plastic debris in the NPSG (67–4941 items km–2) and the PMNM (295–3748 items km–2). These findings suggest that ocean currents are not the only factor provoking plastic debris accumulation in the ocean. Visual observations may be useful to increase our knowledge of large-scale (micro)plastic pollution in the global oceans.
    Repository-Name: EPIC Alfred Wegener Institut
    Materialart: Article , peerRev
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  • 3
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    Significant turning point: common buzzard (Buteo buteo) exposure to second-generation anticoagulant rodenticides in the United Kingdom (2024)
    American Chemical Society (ACS)
    In:  Environmental Science & Technology vol. 2024 no. 3c09052
    Details
    Publikationsdatum: 2024-04-04
    Beschreibung: Second-generation anticoagulant rodenticides (SGARs) are widely used to control rodent populations, resulting in the serious secondary exposure of predators to these contaminants. In the United Kingdom (UK), professional use and purchase of SGARs were revised in the 2010s. Certain highly toxic SGARs have been authorized since then to be used outdoors around buildings as resistance-breaking chemicals under risk mitigation procedures. However, it is still uncertain whether and how these regulatory changes have influenced the secondary exposure of birds of prey to SGARs. Based on biomonitoring of the UK Common Buzzard (Buteo buteo) collected from 2001 to 2019, we assessed the temporal trend of exposure to SGARs and statistically determined potential turning points. The magnitude of difenacoum decreased over time with a seasonal fluctuation, while the magnitude and prevalence of more toxic brodifacoum, authorized to be used outdoors around buildings after the regulatory changes, increased. The summer of 2016 was statistically identified as a turning point for exposure to brodifacoum and summed SGARs that increased after this point. This time point coincided with the aforementioned regulatory changes. Our findings suggest a possible shift in SGAR use to brodifacoum from difenacoum over the decades, which may pose higher risks of impacts on wildlife.
    Schlagwort(e): apex predator ; conditional inference trees ; effectiveness evaluation ; regulatory changes ; seasonal fluctuation
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
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  • 4
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    Direct Analysis of Marine Dissolved Organic Matter Using LC-FT-ICR MS (2024)
    American Chemical Society (ACS)
    In:  EPIC3Environmental Science and Technology, American Chemical Society (ACS), 58(10), pp. 4637-4647, ISSN: 0013-936X
    Details
    Publikationsdatum: 2024-04-08
    Beschreibung: Marine dissolved organic matter (DOM) is an important component of the global carbon cycle, yet its intricate composition and the sea salt matrix pose major challenges for chemical analysis. We introduce a direct injection, reversed-phase liquid chromatography ultrahigh resolution mass spectrometry approach to analyze marine DOM without the need for solid-phase extraction. Effective separation of salt and DOM is achieved with a large chromatographic column and an extended isocratic aqueous step. Postcolumn dilution of the sample flow with buffer-free solvents and implementing a counter gradient reduced salt buildup in the ion source and resulted in excellent repeatability. With this method, over 5,500 unique molecular formulas were detected from just 5.5 nmol carbon in 100 μL of filtered Arctic Ocean seawater. We observed a highly linear detector response for variable sample carbon concentrations and a high robustness against the salt matrix. Compared to solid-phase extracted DOM, our direct injection method demonstrated superior sensitivity for heteroatom-containing DOM. The direct analysis of seawater offers fast and simple sample preparation and avoids fractionation introduced by extraction. The method facilitates studies in environments, where only minimal sample volume is available e.g. in marine sediment pore water, ice cores, or permafrost soil solution. The small volume requirement also supports higher spatial (e.g., in soils) or temporal sample resolution (e.g., in culture experiments). Chromatographic separation adds further chemical information to molecular formulas, enhancing our understanding of marine biogeochemistry, chemodiversity, and ecological processes.
    Repository-Name: EPIC Alfred Wegener Institut
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  • 5
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    Iron Promotes the Retention of Terrigenous Dissolved Organic Matter in Subtidal Permeable Sediments (2024)
    American Chemical Society (ACS)
    In:  EPIC3Environmental Science and Technology, American Chemical Society (ACS), ISSN: 0013-936X
    Details
    Publikationsdatum: 2024-04-08
    Beschreibung: Marine permeable sediments are important sites for organic matter turnover in the coastal ocean. However, little is known about their role in trapping dissolved organic matter (DOM). Here, we examined DOM abundance and molecular compositions (9804 formulas identified) in subtidal permeable sediments along a near- to offshore gradient in the German North Sea. With the salinity increasing from 30.1 to 34.6 PSU, the DOM composition in bottom water shifts from relatively higher abundances of aromatic compounds to more highly unsaturated compounds. In the bulk sediment, DOM leached by ultrapure water (UPW) from the solid phase is 54 ± 20 times more abundant than DOM in porewater, with higher H/C ratios and a more terrigenous signature. With 0.5 M HCl, the amount of leached DOM (enriched in aromatic and oxygen-rich compounds) is doubled compared to UPW, mainly due to the dissolution of poorly crystalline Fe phases (e.g., ferrihydrite and Fe monosulfides). This suggests that poorly crystalline Fe phases promote DOM retention in permeable sediments, preferentially terrigenous, and aromatic fractions. Given the intense filtration of seawater through the permeable sediments, we posit that Fe can serve as an important intermediate storage for terrigenous organic matter and potentially accelerate organic matter burial in the coastal ocean.
    Repository-Name: EPIC Alfred Wegener Institut
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  • 6
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    Driving forces of Antarctic krill abundance (2023)
    American Association for the Advancement of Science (AAAS)
    In:  EPIC3Science Advances, American Association for the Advancement of Science (AAAS), 9(50), ISSN: 2375-2548
    Details
    Publikationsdatum: 2023-12-18
    Beschreibung: Antarctic krill, crucial to the Southern Ocean ecosystem and a vital fisheries resource, is endangered by climate change. Identifying drivers of krill biomass is therefore essential for determining catch limits and designating protection zones. We present a modeling approach to pinpointing effects of sea surface temperature, ice cover, chlorophyll levels, climate indices, and intraspecific competition. Our study reveals that larval recruitment is driven by both competition among age classes and chlorophyll levels. In addition, while milder ice and temperature in spring and summer favor reproduction and early larval survival, both larvae and juveniles strongly benefit from heavier ice and colder temperatures in winter. We conclude that omitting top-down control of resources by krill is only acceptable for retrospective or single-year prognostic models that use field chlorophyll data but that incorporating intraspecific competition is essential for longer-term forecasts. Our findings can guide future krill modeling strategies, reinforcing the sustainability of this keystone species.
    Repository-Name: EPIC Alfred Wegener Institut
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  • 7
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    A Review of Arctic–Subarctic Ocean Linkages: Past Changes, Mechanisms, and Future Projections (2023)
    American Association for the Advancement of Science (AAAS)
    In:  EPIC3Ocean-Land-Atmosphere Research, American Association for the Advancement of Science (AAAS), 2, ISSN: 2771-0378
    Details
    Publikationsdatum: 2023-08-08
    Beschreibung: 〈jats:p〉Arctic Ocean gateway fluxes play a crucial role in linking the Arctic with the global ocean and affecting climate and marine ecosystems. We reviewed past studies on Arctic–Subarctic ocean linkages and examined their changes and driving mechanisms. Our review highlights that radical changes occurred in the inflows and outflows of the Arctic Ocean during the 2010s. Specifically, the Pacific inflow temperature in the Bering Strait and Atlantic inflow temperature in the Fram Strait hit record highs, while the Pacific inflow salinity in the Bering Strait and Arctic outflow salinity in the Davis and Fram straits hit record lows. Both the ocean heat convergence from lower latitudes to the Arctic and the hydrological cycle connecting the Arctic with Subarctic seas were stronger in 2000–2020 than in 1980–2000. CMIP6 models project a continuing increase in poleward ocean heat convergence in the 21st century, mainly due to warming of inflow waters. They also predict an increase in freshwater input to the Arctic Ocean, with the largest increase in freshwater export expected to occur in the Fram Strait due to both increased ocean volume export and decreased salinity. Fram Strait sea ice volume export hit a record low in the 2010s and is projected to continue to decrease along with Arctic sea ice decline. We quantitatively attribute the variability of the volume, heat, and freshwater transports in the Arctic gateways to forcing within and outside the Arctic based on dedicated numerical simulations and emphasize the importance of both origins in driving the variability.〈/jats:p〉
    Repository-Name: EPIC Alfred Wegener Institut
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  • 8
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    High Levels of Microplastics in the Arctic Sea Ice Alga 〈i〉Melosira arctica〈/i〉, a Vector to Ice-Associated and Benthic Food Webs (2023)
    American Chemical Society (ACS)
    In:  EPIC3Environmental Science & Technology, American Chemical Society (ACS), 57(17), pp. 6799-6807, ISSN: 0013-936X
    Details
    Publikationsdatum: 2023-08-16
    Beschreibung: Plastic pollution has become ubiquitous with very high quantities detected even in ecosystems as remote as arctic sea ice and deepsea sediments. Ice algae growing underneath sea ice are released upon melting and can form fast-sinking aggregates. In this pilot study, we sampled and analyzed the ice algaeMelosira arcticaand ambient sea water from three locations in the Fram Strait to assess their microplastic content and potential as a temporary sink and pathway to the deep seafloor. Analysis by μ-Raman and fluorescence microscopy detected microplastics (≥2.2 μm) in all samples at concentrations ranging from 1.3 to 5.7 × 104 microplastics (MP) m−3 in ice algae and from 1.4 to 4.5 × 103 MP m−3 in sea water, indicating magnitude higher concentrations in algae. On average, 94% of the total microplastic particles were identified as 10 μm or smaller in size and comprised 16 polymer types without a clear dominance. The high concentrations of microplastics found in our pilot study suggest thatM. arctica could trap microplastics from melting ice and ambient sea water. The algae appear to be a temporary sink and could act as a key vector to food webs near the sea surface and on the deep seafloor, to which its fast-sinking aggregates could facilitate an important mechanism of transport.
    Repository-Name: EPIC Alfred Wegener Institut
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  • 9
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    Erratum to “A Review of Arctic–Subarctic Ocean Linkages: Past Changes, Mechanisms, and Future Projections” (2023)
    American Association for the Advancement of Science (AAAS)
    In:  EPIC3Ocean-Land-Atmosphere Research, American Association for the Advancement of Science (AAAS), 2, ISSN: 2771-0378
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    Publikationsdatum: 2024-01-20
    Repository-Name: EPIC Alfred Wegener Institut
    Materialart: Article , peerRev
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  • 10
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    Structure-informed microbial population genetics elucidate selective pressures that shape protein evolution (2023)
    American Association for the Advancement of Science (AAAS)
    In:  EPIC3Science Advances, American Association for the Advancement of Science (AAAS), 9(8), pp. eabq4632-eabq4632, ISSN: 2375-2548
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    Publikationsdatum: 2024-04-03
    Beschreibung: 〈jats:p〉Comprehensive sampling of natural genetic diversity with metagenomics enables highly resolved insights into the interplay between ecology and evolution. However, resolving adaptive, neutral, or purifying processes of evolution from intrapopulation genomic variation remains a challenge, partly due to the sole reliance on gene sequences to interpret variants. Here, we describe an approach to analyze genetic variation in the context of predicted protein structures and apply it to a marine microbial population within the SAR11 subclade 1a.3.V, which dominates low-latitude surface oceans. Our analyses reveal a tight association between genetic variation and protein structure. In a central gene in nitrogen metabolism, we observe decreased occurrence of nonsynonymous variants from ligand-binding sites as a function of nitrate concentrations, revealing genetic targets of distinct evolutionary pressures maintained by nutrient availability. Our work yields insights into the governing principles of evolution and enables structure-aware investigations of microbial population genetics.〈/jats:p〉
    Repository-Name: EPIC Alfred Wegener Institut
    Materialart: Article , peerRev
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  • 11
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    Finding the Balance between Research and Monitoring: When Are Methods Good Enough to Understand Plastic Pollution? (2023)
    American Chemical Society (ACS)
    In:  EPIC3Environmental Science and Technology, American Chemical Society (ACS), 57(15), pp. 6033-6039, ISSN: 0013-936X
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    Publikationsdatum: 2024-04-17
    Beschreibung: Plastic pollution is an international environmental problem. Desire to act is shared from the public to policymakers, yet motivation and approaches are diverging. Public attention is directed to reducing plastic consumption, cleaning local environments, and engaging in citizen science initiatives. Policymakers and regulators are working on prevention and mitigation measures, while international, regional, and national bodies are defining monitoring recommendations. Research activities are focused on validating approaches to address goals and comparing methods. Policy and regulation are eager to act on plastic pollution, often asking questions researchers cannot answer with available methods. The purpose of monitoring will define which method is implemented. A clear and open dialogue between all actors is essential to facilitate communication on what is feasible with current methods, further research, and development needs. For example, some methods can already be used for international monitoring, yet limitations including target plastic types and sizes, sampling strategy, available infrastructure and analytical capacity, and harmonization of generated data remain. Time and resources to advance scientific understanding must be balanced against the need to answer pressing policy issues.
    Repository-Name: EPIC Alfred Wegener Institut
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  • 12
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    Chasing iron bioavailability in the Southern Ocean: Insights from Phaeocystis antarctica and iron speciation (2023)
    American Association for the Advancement of Science (AAAS)
    In:  EPIC3Science Advances, American Association for the Advancement of Science (AAAS), 9(26), pp. eadf9696-eadf9696, ISSN: 2375-2548
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    Publikationsdatum: 2024-03-01
    Beschreibung: Dissolved iron (dFe) availability limits the uptake of atmospheric CO2 by the Southern Ocean (SO) biological pump. Hence, any change in bioavailable dFe in this region can directly influence climate. On the basis of Fe uptake experiments with Phaeocystis antarctica, we show that the range of dFe bioavailability in natural samples is wider (〈1 to ~200% compared to free inorganic Fe′) than previously thought, with higher bioavailability found near glacial sources. The degree of bioavailability varied regardless of in situ dFe concentration and depth, challenging the consensus that sole dFe concentrations can be used to predict Fe uptake in modeling studies. Further, our data suggest a disproportionately major role of biologically mediated ligands and encourage revisiting the role of humic substances in influencing marine Fe biogeochemical cycling in the SO. Last, we describe a linkage between in situ dFe bioavailability and isotopic signatures that, we anticipate, will stimulate future research.
    Repository-Name: EPIC Alfred Wegener Institut
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  • 13
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    Improving Arctic sea-ice thickness estimates with the assimilation of CryoSat-2 summer observations (2023)
    American Association for the Advancement of Science (AAAS)
    In:  EPIC3Ocean-Land-Atmosphere Research, American Association for the Advancement of Science (AAAS), 2, ISSN: 2771-0378
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    Publikationsdatum: 2024-02-13
    Beschreibung: 〈jats:p〉Rapidly shrinking Arctic sea ice has had substantial impacts on the Earth system. Therefore, reliably estimating the Arctic sea-ice thickness (SIT) using a combination of available observations and numerical modeling is urgently needed. Here, for the first time, we assimilate the latest CryoSat-2 summer SIT data into a coupled ice-ocean model. In particular, an incremental analysis update scheme is implemented to overcome the discontinuity resulting from the combined assimilation of biweekly SIT and daily sea-ice concentration (SIC) data. Along with improved estimates of sea-ice volume, our SIT estimates corrected the overestimation of SIT produced by the reanalysis that assimilates only SIC in summer in areas where the sea ice is roughest and experiences strong deformation, e.g., around the Fram Strait and Greenland. This study suggests that the newly developed CryoSat-2 SIT product, when assimilated properly using our approach, has great potential for Arctic sea-ice simulation and prediction.〈/jats:p〉
    Repository-Name: EPIC Alfred Wegener Institut
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  • 14
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    Genomic evidence for West Antarctic Ice Sheet collapse during the Last Interglacial (2023)
    American Association for the Advancement of Science (AAAS)
    In:  EPIC3Science, American Association for the Advancement of Science (AAAS), 382(6677), pp. 1384-1389, ISSN: 0036-8075
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    Publikationsdatum: 2024-02-22
    Beschreibung: The marine-based West Antarctic Ice Sheet (WAIS) is considered vulnerable to irreversible collapse under future climate trajectories, and its tipping point may lie within the mitigated warming scenarios of 1.5° to 2°C of the United Nations Paris Agreement. Knowledge of ice loss during similarly warm past climates could resolve this uncertainty, including the Last Interglacial when global sea levels were 5 to 10 meters higher than today and global average temperatures were 0.5° to 1.5°C warmer than preindustrial levels. Using a panel of genome-wide, single-nucleotide polymorphisms of a circum-Antarctic octopus, we show persistent, historic signals of gene flow only possible with complete WAIS collapse. Our results provide the first empirical evidence that the tipping point of WAIS loss could be reached even under stringent climate mitigation scenarios.
    Repository-Name: EPIC Alfred Wegener Institut
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  • 15
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    Caribbean salinity anomalies contributed to variable North Atlantic circulation and climate during the Common Era (2023)
    American Association for the Advancement of Science (AAAS)
    In:  EPIC3Science Advances, American Association for the Advancement of Science (AAAS), 9(44), pp. eadg2639-eadg2639, ISSN: 2375-2548
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    Publikationsdatum: 2024-04-24
    Beschreibung: Paleoceanographic reconstructions show that the strength of North Atlantic currents decreased during the Little Ice Age. In contrast, the role of ocean circulation in climate regulation during earlier historical epochs of the Common Era (C.E.) remains unclear. Here, we reconstruct sea surface temperature (SST) and salinity in the Caribbean Basin for the past 1700 years using the isotopic and elemental composition of planktic foraminifera tests. Centennial-scale SST and salinity variations in the Caribbean co-occur with (hydro)climate changes in the Northern Hemisphere and are linked to a North Atlantic SST forcing. Cold phases around 600, 800, and 1400 to 1600 C.E. are characterized by Caribbean salinification and Gulf of Mexico freshening that implies reductions in the strength of North Atlantic surface circulation. We suggest that the associated changes in the meridional salt advection contributed to the historical climate variability of the C.E.
    Repository-Name: EPIC Alfred Wegener Institut
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  • 16
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    A Call to Include Plastics in the Global Environment in the Class of Persistent, Bioaccumulative, and Toxic (PBT) Pollutants (2023)
    American Chemical Society (ACS)
    In:  EPIC3Environmental Science and Technology, American Chemical Society (ACS), 57(22), pp. 8185-8188, ISSN: 0013-936X
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    Publikationsdatum: 2024-05-03
    Repository-Name: EPIC Alfred Wegener Institut
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  • 17
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    Antarctic marine life under pressure (2022)
    American Association for the Advancement of Science (AAAS)
    In:  EPIC3Science, American Association for the Advancement of Science (AAAS), 378(6617), pp. 230-230, ISSN: 0036-8075
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    Publikationsdatum: 2023-05-10
    Beschreibung: 〈jats:p〉 Next week, the Convention on the Conservation of Antarctic Marine Living Resources (CCAMLR) convenes in Hobart, Tasmania, to examine the state of marine life in the Southern Ocean. As part of the Antarctic Treaty System, this convention entered into force in 1982, and its focus on the region’s environmental integrity has never been more important, given the increasing effects of climate change and commercial fishing. An important focus over the past 40 years has been Antarctic krill, 〈jats:italic〉Euphausia superba〈/jats:italic〉 (hereafter krill), a keystone species that helps to hold this marine ecosystem together. Climate and fishing stresses should prompt the CCAMLR to address whether management of krill fishing is at a level that protects the Southern Ocean from losing its overall balance of marine life and the oceanic processes that regulate global climate. 〈/jats:p〉
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  • 18
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    A global environmental crisis 42,000 years ago (2021)
    American Association for the Advancement of Science (AAAS)
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    Publikationsdatum: 2024-02-07
    Beschreibung: Geological archives record multiple reversals of Earth’s magnetic poles, but the global impacts of these events, if any, remain unclear. Uncertain radiocarbon calibration has limited investigation of the potential effects of the last major magnetic inversion, known as the Laschamps Excursion [41 to 42 thousand years ago (ka)]. We use ancient New Zealand kauri trees (Agathis australis) to develop a detailed record of atmospheric radiocarbon levels across the Laschamps Excursion. We precisely characterize the geomagnetic reversal and perform global chemistry-climate modeling and detailed radiocarbon dating of paleoenvironmental records to investigate impacts. We find that geomagnetic field minima ~42 ka, in combination with Grand Solar Minima, caused substantial changes in atmospheric ozone concentration and circulation, driving synchronous global climate shifts that caused major environmental changes, extinction events, and transformations in the archaeological record.
    Materialart: Article , PeerReviewed
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  • 19
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    Spatial heterogeneity and environmental predictors of permafrost region soil organic carbon stocks (2021)
    American Association for the Advancement of Science (AAAS)
    In:  EPIC3Science Advances, American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2024-04-22
    Beschreibung: Large stocks of soil organic carbon (SOC) have accumulated in the northern hemisphere permafrost region, but their current mounts and future fate remain uncertain. By analyzing an unprecedented dataset combining 〉2,700 soil profiles with environmental variables in a geospatial framework, we generated spatially explicit estimates of permafrost-region SOC stocks, quantified spatial heterogeneity, and identified key environmental predictors. We estimated 1014−175+194 Pg C are stored in the top 3 m of permafrost region soils. The greatest uncertainties occurred in circumpolar toe-slope positions and in flat areas of the Tibetan region. We found that soil wetness index and elevation are the dominant topographic controllers and surface air temperature (circumpolar region) and precipitation (Tibetan region) are significant climatic controllers of SOC stocks. Our results provide the first high-resolution geospatial assessment of permafrost region SOC stocks and their relationships with environmental factors, which are crucial for modeling the response of permafrost affected soils to changing climate.
    Repository-Name: EPIC Alfred Wegener Institut
    Materialart: Article , isiRev , info:eu-repo/semantics/article
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  • 20
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    Post-2020 goals overlook genetic diversity (2020)
    American Association for the Advancement of Science (AAAS)
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    Publikationsdatum: 2023-02-08
    Materialart: Article , PeerReviewed
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  • 21
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    Earth tides and ocean tides (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-06-08
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Anderson, D L -- New York, N.Y. -- Science. 1979 Jun 8;204(4397):1074-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17790006" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 22
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    Heterogeneous atmospheric reactions: sulfuric Acid aerosols as tropospheric sinks (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-11-02
    Beschreibung: The collisional reaction probabilities of several atmospheric species on bulk sulfuric acid surfaces indicate that heterogeneous processes may be important in tropospheric chemistry.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baldwin, A C -- Golden, D M -- New York, N.Y. -- Science. 1979 Nov 2;206(4418):562-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17759425" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 23
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    Sleeping pills and insomnia (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-07-06
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Anylan, W G -- Gillin, C -- Solomon, F -- New York, N.Y. -- Science. 1979 Jul 6;205(4401):6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/451580" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Flurazepam/adverse effects/therapeutic use ; Humans ; Hypnotics and Sedatives/adverse effects/*therapeutic use ; Sleep Initiation and Maintenance Disorders/*drug therapy
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 24
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    Metabolism of theophylline to caffeine in human fetal liver (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-12-14
    Beschreibung: Caffeine (1,3,7-trimethylxanthine) is a biotransformation product of theophylline (1,3-dimethylxanthine) in the human fetus. Liver explants, obtained from human fetuses with gestational ages of 12 to 20 weeks, were incubated with theophylline and produced caffeine and, in lesser amounts, 1,3-dimethyluric acid and 3-methylxanthine. These findings suggest that the predominant pathway in theophylline metabolism in the fetus and newborn infant is the methylation reaction producing caffeine. This may contribute to the neonate's exceedingly slower elimination of caffeine relative to theophylline. Caffeine produced from theophylline may add to the pharmacologic effects of theophylline in newborn infants with apnea.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Aranda, J V -- Louridas, A T -- Vitullo, B B -- Thom, P -- Aldridge, A -- Haber, R -- New York, N.Y. -- Science. 1979 Dec 14;206(4424):1319-21.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/515734" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Apnea/drug therapy ; Biotransformation ; Caffeine/*biosynthesis/metabolism/therapeutic use ; Cells, Cultured ; Gestational Age ; Humans ; Infant, Newborn ; Liver/*embryology/metabolism ; Methylation ; Theophylline/*metabolism/therapeutic use
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 25
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    Regional localization of the gene for human phosphoribosylpyrophosphate synthetase on the X chromosome (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-03-09
    Beschreibung: Sixty-eight independent hybrid clones were isolated after irradiated normal human lymphocytes were fused with Chinese hamster fibroblasts lacking hypoxanthine-guanine phosphoribosyltransferase activity. The cells were grown under selective conditions requiring retention of the X chromosome-linked locus for human hypoxanthine-guanine phosphoribosyltransferase. The frequency and patterns of cotransference of human phosphoribosylpyrophosphate synthetase with the selected marker and with additional X-linked enzymatic markers confirm X linkage of the structural gene for human phosphoribosylpyrophosphate synthetase and support assignment of this gene to a position on the long arm of the X, between the loci for alpha-galactosidase and hypoxanthine-guanine phosphoribosyltransferase.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Becker, M A -- Yen, R C -- Itkin, P -- Goss, S J -- Seegmiller, J E -- Bakay, B -- New York, N.Y. -- Science. 1979 Mar 9;203(4384):1016-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/218284" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Chromosome Mapping ; Female ; Genetic Linkage ; Humans ; Hybrid Cells ; Hypoxanthine Phosphoribosyltransferase/genetics ; Phosphotransferases/*genetics ; Ribose-Phosphate Pyrophosphokinase/*genetics ; *Sex Chromosomes ; *X Chromosome
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 26
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    Edorial writers (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-02-16
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Belden, B C -- New York, N.Y. -- Science. 1979 Feb 16;203(4381):605.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17813358" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 27
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    Food additives (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-12-14
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Benarde, M A -- New York, N.Y. -- Science. 1979 Dec 14;206(4424):1256-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/515730" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Carcinogens ; Food Additives/*adverse effects ; Humans ; Public Opinion
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 28
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    Issues concerning behavior (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-01-26
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bateson, P -- New York, N.Y. -- Science. 1979 Jan 26;203(4378):350.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17772441" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 29
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    Technological innovation (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-01-12
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bayh, B -- New York, N.Y. -- Science. 1979 Jan 12;203(4376):120-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17834696" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 30
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    An idea in anthropology (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-05-18
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bloch, M -- New York, N.Y. -- Science. 1979 May 18;204(4394):734-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17840233" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 31
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    Tumor location detected with radioactively labeled monoclonal antibody and external scintigraphy (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-11-16
    Beschreibung: Murine teratocarcinomas were located in mice by external gamma-ray scintigraphy with an iodine-125-labeled monoclonal antibody specific to the tumors. The specificity of the method was increased by subtracting the radiation produced by an iodine-125-labeled indifferent monoclonal antibody of the same immunoglobulin class as the tumor-specific antibody.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ballou, B -- Levine, G -- Hakala, T R -- Solter, D -- New York, N.Y. -- Science. 1979 Nov 16;206(4420):844-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/493985" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Antibodies, Neoplasm ; Clone Cells/immunology ; Mice ; Neoplasms, Experimental/diagnosis/immunology ; Radionuclide Imaging/*methods ; Teratoma/*diagnosis/immunology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 32
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    Children and ethnographers (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-11-16
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Basso, K H -- New York, N.Y. -- Science. 1979 Nov 16;206(4420):823-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17820757" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 33
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    High concentrations of glutathione in glandular stomach: possible implications for carcinogenesis (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-09-07
    Beschreibung: In laboratory rodents, concentrations of reduced glutathione (GSH) are exceedingly high (up to 7 to 8 millimolar) in the glandular gastric tissue compared to concentrations in other portions of the gastrointestinal tract or to those of most other organs. Gastric GSH varies diurnally, with the highest levels occurring in the late afternoon or early evening. Starvation, treatment with diethyl maleate, or cold-restraint stress all caused marked decreases in stomach GSH, whereas treatment with cobaltous chloride caused an increase in the GSH concentrations. The physiological significance of the high gastric GSH is unknown, but because this endogenous compound may strongly modulate (decrease or increase) the macromolecular binding of certain chemicals capable of inducing stomach tumors, the possible role of glutathione in the pathogenesis of chemically induced gastric cancer should be considered.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Body, S C -- Sasame, H A -- Body, M R -- New York, N.Y. -- Science. 1979 Sep 7;205(4410):1010-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/572989" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Circadian Rhythm ; Cobalt/pharmacology ; Food Deprivation ; Glutathione/*metabolism ; Liver/metabolism ; Rats ; Stomach/*metabolism ; Stomach Neoplasms/*etiology ; Stress, Physiological/physiopathology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 34
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    First results from the large probe infrared radiometer experiment (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-02-23
    Beschreibung: During the descent to the surface of Venus, the large probe infrared radiometer measured the net thermal radiative flux in several spectral bandpasses. Preliminary analysis has permitted us to estimate (i) the infrared extinction coefficient profile attributable to aerosols, with respect to their visible profile, in the upper atmosphere of Venus and (ii) the water vapor mixing ratio below the clouds. An indication of the composition of a multicomponent cloud is seen in the data from the spectral bandpass from 6 to 7 micrometers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boese, R W -- Pollack, J B -- Silvaggio, P M -- New York, N.Y. -- Science. 1979 Feb 23;203(4382):797-800.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17833002" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 35
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    Stereospecific sorption of L amino acids by colloidal clay (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-10-26
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bondy, S C -- New York, N.Y. -- Science. 1979 Oct 26;206(4417):484.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17809373" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 36
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    Astronomy and other subjects (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-07-06
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Berendzen, R -- New York, N.Y. -- Science. 1979 Jul 6;205(4401):38-40.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17778893" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 37
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    Processes of science (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-11-16
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bearman, D -- New York, N.Y. -- Science. 1979 Nov 16;206(4420):824-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17820758" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 38
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    Samarium-neodymium systematics in kimberlites and in the minerals of garnet lherzolite inclusions (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-07-27
    Beschreibung: The initial ratios of neodymium-143 to neodymium-144 in kimberlites ranging in age between 90 x 10(6) to 1300 x 10(6) years from South Africa, India, and the United States are different from the corresponding ratios in the minerals of peridotite inclusions in the kimberlites but are identical to the ratios in the basaltic achondrite Juvinas at the times of emplacement of the respective kimberlite pipes. This correlation between the kimberlites and Juvinas, which represents the bulk chondritic earth in rare-earth elements, strongly indicates that the kimberlite's source in the mantle is chondritic in rare-earth elements and relatively primeval in composition.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Basu, A R -- Tatsumoto, M -- New York, N.Y. -- Science. 1979 Jul 27;205(4404):398-401.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17790851" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 39
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    Medical school funding (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-03-16
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Berliner, R W -- New York, N.Y. -- Science. 1979 Mar 16;203(4385):1066-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17776031" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 40
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    Economic feasibility of solar water and space heating (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-03-23
    Beschreibung: The economic feasibility in 1977 and 1978 of solar water and combined water and space heating is analyzed for single-family detached residences and multi-family apartment buildings in four representative U.S. cities: Boston, Massachusetts; Washington, D.C.; Grand Junction, Colorado; and Los Angeles, California. Three economic decision criteria are utilized: payback period, years to recovery of down payment, and years to net positive cash flow. The cost competitiveness of the solar systems compared to heating systems based on electricity, fuel oil, and natural gas is then discussed for each city, and the impact of the federal tax credit for solar energy systems is assessed. It is found that even without federal incentives some solar water and space heating systems are competitive. Enactment of the solar tax credit, however, greatly enhances their competitiveness. The implications of these findings for government tax and energy pricing policies are discussed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bezdek, R H -- Hirshberg, A S -- Babcock, W H -- New York, N.Y. -- Science. 1979 Mar 23;203(4386):1214-20.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17841125" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 41
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    Alpine plants (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-11-30
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Billings, W D -- New York, N.Y. -- Science. 1979 Nov 30;206(4422):1068.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17787480" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 42
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    Pituitary-brain vascular relations: a new paradigm (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-04-06
    Beschreibung: Vascular casts of the pituitary gland have demonstrated a paucity of veins extending from the adenohypophysis to the systemic circulation and have suggested that some adenohypophyseal venous blood returns to the neurohypophysis. The neurohypophyseal capillary bed may function as a vascular switch and in this article a series of 14 questions are proposed regarding the vascular dynamics of the pituitary. Together these questions raise the larger question, namely, whether pituitary hormones are transported directly to the brain to modify brain function?〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bergland, R M -- Page, R B -- New York, N.Y. -- Science. 1979 Apr 6;204(4388):18-24.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/373118" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Arteriovenous Anastomosis/anatomy & histology ; Capillaries/anatomy & histology ; Cats ; *Cerebrovascular Circulation ; Dogs ; Humans ; Hypothalamo-Hypophyseal System/blood supply ; Pituitary Gland/*blood supply ; Pituitary Gland, Anterior/blood supply ; Rats ; Species Specificity
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 43
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    Mesonic nuclear physics (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-09-07
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bertsch, G F -- New York, N.Y. -- Science. 1979 Sep 7;205(4410):994.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17795559" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 44
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    Opioid peptides modulate luteinizing hormone secretion during sexual maturation (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-03-16
    Beschreibung: Subcutaneous injections of naloxone, an opiate antagonist, lead to an increase in serum luteinizing hormone concentrations in female but not in male rats before they reach puberty. In addition, estradiol benzoate specifically blocks the luteinizing hormone response to naloxone in prepubertal female rats, suggesting that the opioid peptides have a physiological role in the endocrine events leading to sexual maturation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Blank, M S -- Panerai, A E -- Friesen, H G -- New York, N.Y. -- Science. 1979 Mar 16;203(4385):1129-31.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/424743" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Endorphins/antagonists & inhibitors/*physiology ; Estradiol/pharmacology ; Female ; Luteinizing Hormone/blood/*secretion ; Male ; Naloxone/antagonists & inhibitors/pharmacology ; Rats ; Secretory Rate/drug effects ; Sexual Maturation/*drug effects
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 45
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    A blow for the whales (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-08-10
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Broad, W J -- New York, N.Y. -- Science. 1979 Aug 10;205(4406):565.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17729664" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 46
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    New strength in the diet-disease link? (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-11-09
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Broad, W J -- New York, N.Y. -- Science. 1979 Nov 9;206(4419):666-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/493971" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Diet/*adverse effects ; Disease/*etiology ; Humans ; Legislation as Topic ; National Institutes of Health (U.S.) ; Nutritional Physiological Phenomena ; Peer Review ; Preventive Medicine/methods ; Research Support as Topic ; United States
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 47
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    No cure in sight for loss of M.D. researchers (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-07-06
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Broad, W J -- New York, N.Y. -- Science. 1979 Jul 6;205(4401):26-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/451579" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Economics ; *Physicians ; *Research ; Research Support as Topic
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 48
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    NIH deals gingerly with diet-disease link (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-06-15
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Broad, W J -- New York, N.Y. -- Science. 1979 Jun 15;204(4398):1175-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/451563" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Diabetes Mellitus/etiology ; Diet/*adverse effects ; Disease/*etiology ; *National Institutes of Health (U.S.) ; Neoplasms/etiology ; *Nutritional Physiological Phenomena ; Preventive Medicine ; United States
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 49
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    Barons of electric power hold pep talk (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-04-27
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Broad, W J -- New York, N.Y. -- Science. 1979 Apr 27;204(4391):390.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17758006" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 50
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    On centennial Fever and its ironies (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-03-23
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Broad, W J -- New York, N.Y. -- Science. 1979 Mar 23;203(4386):1225.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17841129" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 51
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    Rubber bible turns 60 (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-06-15
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Broad, W J -- New York, N.Y. -- Science. 1979 Jun 15;204(4398):1181.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17772414" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 52
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    Soviet jailings hit by 2400 (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-03-16
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Broad, W J -- New York, N.Y. -- Science. 1979 Mar 16;203(4385):1095.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17776037" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 53
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    Business booms for Caribbean med schools (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-02-23
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Broad, W J -- New York, N.Y. -- Science. 1979 Feb 23;203(4382):724-6. 728, 730-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/419405" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Education, Medical ; *Foreign Medical Graduates ; Ohio ; West Indies
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 54
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    Canada wants cash for cosmos 954 cleanup (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-02-16
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Broad, W J -- New York, N.Y. -- Science. 1979 Feb 16;203(4381):632-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17813364" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 55
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    Extreme ultraviolet observations from voyager 1 encounter with jupiter (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-06-01
    Beschreibung: Observations of the optical extreme ultraviolet spectrum of the Jupiter planetary system during the Voyager 1 encounter have revealed previously undetected physical processes of significant proportions. Bright emission lines of S III, S IV, and O III indicating an electron temperature of 10(5) K have been identified in preliminary analyses of the Io plasma torus spectrum. Strong auroral atomic and molecular hydrogen emissions have been observed in the polar regions of Jupiter near magnetic field lines that map the torus into the atmosphere of Jupiter. The observed resonance scattering of solar hydrogen Lyman alpha by the atmosphere of Jupiter and the solar occultation experiment suggest a hot thermosphere (〉/= 1000 K) wvith a large atomic hydrogen abundance. A stellar occultation by Ganymede indicates that its atmosphere is at most an exosphere.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Broadfoot, A L -- Belton, M J -- Takacs, P Z -- Sandel, B R -- Shemansky, D E -- Holberg, J B -- Ajello, J M -- Atreya, S K -- Donahue, T M -- Moos, H W -- Bertaux, J L -- Blamont, J E -- Strobel, D F -- McConnell, J C -- Dalgarno, A -- Goody, R -- McElroy, M B -- New York, N.Y. -- Science. 1979 Jun 1;204(4396):979-82.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17800434" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 56
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    Nuclear physics in france (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-05-18
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bromberg, J -- New York, N.Y. -- Science. 1979 May 18;204(4394):741-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17840238" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 57
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    Metabolism of americium-241 in man: an unusual case of internal contamination of a child and his father (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-10-05
    Beschreibung: The metabolism of americium-241 has been studied during an 8-year period in an adult male and his son who, at the ages of 50 and 4 years, respectively, were accidentally and unknowingly contaminated within their home by means of inhalation. Chelation therapy with calcium trisodium pentetate was more effective in enhancing the removal of americium-241 from the child than from the father.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cohen, N -- Sasso, T L -- Wrenn, M E -- New York, N.Y. -- Science. 1979 Oct 5;206(4414):64-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/482925" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Age Factors ; Americium/*metabolism/poisoning ; Body Burden ; Body Height ; Body Weight ; Bone and Bones/metabolism ; Chelating Agents/*therapeutic use ; Child, Preschool ; Humans ; Liver/metabolism ; Lung/metabolism ; Male ; Middle Aged
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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    Comparative biochemistry and drug design for infectious disease (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-09-07
    Beschreibung: In the past two decades, biochemistry and molecular biology have demonstrated the existence of potentially exploitable biochemical differences between etiologic agents of disease and their hosts. Known differences between organism and host with respect to metabolism and polymer structure point to the detailed characterization of key proteins as the focus for the development of potential inhibitors. In the last decade, the methodology of the isolation, characterization, and inactivation of proteins and enzymes has been advanced. The present scientific and technological base suggests that new efforts toward the development of selective chemotherapeutic agents for infections caused by bacteria, viruses, protozoa, and higher eukaryotes should exploit the known differences in proteins or other specific biopolymers serving crucial structural or metabolic roles in the economy of the parasite.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cohen, S S -- New York, N.Y. -- Science. 1979 Sep 7;205(4410):964-71.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/382357" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Anti-Bacterial Agents ; *Antiviral Agents ; Communicable Diseases/*drug therapy ; Humans ; Mycobacterium leprae/metabolism ; Polysaccharides, Bacterial/metabolism ; Species Specificity ; Structure-Activity Relationship ; Trypanosomiasis/drug therapy ; Vidarabine/pharmacology ; Viral Proteins/biosynthesis ; Virus Replication/drug effects
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 59
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    Circular forms of DNA synthesized by Rous sarcoma virus in vitro (1979)
    American Association for the Advancement of Science (AAAS)
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    Publikationsdatum: 1979-11-02
    Beschreibung: Electron microscopic analysis of the DNA product synthesized by detergent-disrupted preparations of Rous sarcoma virus in vitro revealed the presence of several interesting molecular forms including covalently closed circular DNA. The identification of such circular DNA indicates that virions of retroviruses contain all the components necessary to facilitate the complete synthesis of mature forms of viral DNA and therefore provide a useful system to delineate the molecular mechanisms involved in their synthesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Clayman, C H -- Mosharrafa, E T -- Anderson, D L -- Feras, A J -- New York, N.Y. -- Science. 1979 Nov 2;206(4418):582-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/91199" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Avian Sarcoma Viruses/*genetics/metabolism ; DNA, Circular/*biosynthesis ; DNA, Single-Stranded/*biosynthesis ; DNA, Viral/*biosynthesis ; Microscopy, Electron ; Molecular Weight ; RNA-Directed DNA Polymerase/metabolism
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 60
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    Obesity genes: beneficial effects in heterozygous mice (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-02-16
    Beschreibung: The mouse mutant genes obese (ob) and diabetes (db) cause similar obesity-diabetes states in homozygotes. These obesity syndromes are characterized by a more efficient conversion of food to lipid and, once stored, a slower rate of catabolism on fasting. Heterozygous mice, either ob/+ or db/+, survived a prolonged fast significantly longer than normal homozygotes (+/+); this suggests that the heterozygotes exhibited increased metabolic efficiency, a feature normally associated with both homozygous mutants. The existence of this thriftiness trait, if manifested by heterozygous carriers in wild populations, would lend credence to the thrifty gene concept of diabetes. Beneficial effects of normally deleterious genes may have played a role in the development of diabetes-susceptible human populations, as well as having provided the survival advantage that has allowed both the development and successful establishment of species in desert and other less affluent regions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Coleman, D L -- New York, N.Y. -- Science. 1979 Feb 16;203(4381):663-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/760211" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Body Temperature Regulation ; Diabetes Mellitus, Experimental/*genetics/metabolism ; Fasting ; Glucose/metabolism ; Heterozygote ; Insulin/blood ; Mice ; Mice, Obese/*genetics
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 61
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    Raphe inhibition of sympathetic preganglionic neurons (1979)
    American Association for the Advancement of Science (AAAS)
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    Publikationsdatum: 1979-01-12
    Beschreibung: Anatomical and electrophysiological studies suggest that the medullary raphe gives rise to a monosynaptic, inhibitory projection on sympathetic preganglionic neurons. Physiological and behavioral data indicate that this sympathoinhibitory pathway participates in the central control of cardiovascular function.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cabot, J B -- Wild, J M -- Cohen, D H -- New York, N.Y. -- Science. 1979 Jan 12;203(4376):184-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/758687" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Autonomic Fibers, Preganglionic/physiology ; Blood Pressure ; Brain Stem/*physiology ; Columbidae ; Electric Stimulation ; Heart/*physiology ; Heart Rate ; *Neural Inhibition ; Neural Pathways/cytology/physiology ; Raphe Nuclei/cytology/*physiology ; Spinal Cord/*physiology ; Sympathetic Nervous System/cytology/*physiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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    Enhanced 5-fluorouracil nucleotide formation after methotrexate administration: explanation for drug synergism (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-09-14
    Beschreibung: Exposure of L1210 leukemia cells first to 0.1 to 100 micromolar methotrexate and then to 10 micromolar 5-fluorouracil produces a synergistic effect on the number of cells killed in culture. Methotrexate dose-related increases occur in the concentrations of intracellular 5-fluorouracil ribonucleotides and 5-fluoro-2'-deoxyuridylate and in the incorporation of 5-fluorouracil into RNA. These increases are correlated with increased concentrations of intracellular phosphoribosylpyrophosphate. It is proposed that the enhanced formation of ribonucleotides of 5-fluorouracil and the subsequent incorporation of these compounds into RNA in methotrexate-treated cells may account for synergism between these agents.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cadman, E -- Heimer, R -- Davis, L -- New York, N.Y. -- Science. 1979 Sep 14;205(4411):1135-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/472732" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cells, Cultured ; Drug Administration Schedule ; Drug Synergism ; Fluorouracil/metabolism/*pharmacology ; Leukemia L1210 ; Methotrexate/*pharmacology ; Mice ; Phosphoribosyl Pyrophosphate/metabolism ; RNA, Neoplasm/metabolism ; Ribonucleotides/metabolism ; Thymidylate Synthase/metabolism
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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    Birds of prey (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-10-12
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cade, T J -- Clark, A L -- New York, N.Y. -- Science. 1979 Oct 12;206(4415):211-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17801785" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 64
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    Chemistry in china (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-12-14
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cairns, R E Jr -- New York, N.Y. -- Science. 1979 Dec 14;206(4424):1296-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17799641" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 65
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    Ozone and temperature trends associated with the 11-year solar cycle (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-06-22
    Beschreibung: Evidence is presented which suggests that trends in the ozone concentration and stratospheric temperature, reported between the early 1960's and 1976, are to a large extent due to solar ultraviolet flux variability associated with the 11-year solar cycle. Radiative-convective-photochemical simulations of ozone and temperature variations have been made with a solar ultraviolet flux variability model. Results for temperatures and ozone concentrations, when compared with published data, show good agreement.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Callis, L B -- Natarajan, M -- Nealy, J E -- New York, N.Y. -- Science. 1979 Jun 22;204(4399):1303-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17813169" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 66
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    Alaska lands bill (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-01-19
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cook, E -- New York, N.Y. -- Science. 1979 Jan 19;203(4377):228.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17738981" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 67
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    Ingested mineral fibers: elimination in human urine (1979)
    American Association for the Advancement of Science (AAAS)
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    Publikationsdatum: 1979-04-13
    Beschreibung: Sediment in human urine examined by transmission electron microscopy contains amphibole fibers which originate from the ingestion of drinking water contaminated with these mineral fibers. The ingestion of filtered water results in the eventual disappearance of amphibole fibers from urine. These observations provide the first direct evidence for the passage of mineral fibers through the human gastro-intestinal mucosa under normal conditions of the alimentary canal.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cook, P M -- Olson, G F -- New York, N.Y. -- Science. 1979 Apr 13;204(4389):195-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/219478" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adult ; Aged ; Female ; Gastric Mucosa/metabolism ; Humans ; Intestinal Absorption ; Intestinal Mucosa/metabolism ; Male ; Middle Aged ; Silicon Dioxide/metabolism/*urine ; *Water Pollutants ; *Water Pollutants, Chemical
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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    An adaptation of the jet stream microelectrode beveler (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-09-21
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Corson, D W -- Goodman, S -- Fein, A -- New York, N.Y. -- Science. 1979 Sep 21;205(4412):1302.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17750155" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 69
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    House panel reassured on nonproliferation policy (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-12-14
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carter, L J -- New York, N.Y. -- Science. 1979 Dec 14;206(4424):1287.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17799635" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 70
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    Experimental coarsening of antiphase domains in a silicate mineral (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-11-09
    Beschreibung: Combined annealing experiments and observations by transmission electron microscopy show that in natural pigeonite crystals antiphase domains coarsen approximately according to a rate law in which the tenth power of the average domain size is proportional to time. This result suggests that certain cations (possibly Ca(2+)) were segregated preferentially onto the antiphase boundaries. The domain size in samples quenched from above the high-low transformation temperature is large and apparently independent of annealing time and temperature. It appears that large domains can be generated either by very fast or by very slow cooling; thus the estimation of geological cooling rates from the sizes of antiphase domains in natural samples becomes rather difficult.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carpenter, M A -- New York, N.Y. -- Science. 1979 Nov 9;206(4419):681-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17796932" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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    Environmental warfare treaty (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-08-17
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carter, L J -- New York, N.Y. -- Science. 1979 Aug 17;205(4407):674.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17781252" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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    Solar Activist, Denis Hayes, Heads SERI (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-08-10
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carter, L J -- New York, N.Y. -- Science. 1979 Aug 10;205(4406):563-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17729661" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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    A Warning on Synfuels, CO2, and the Weather (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-07-27
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carter, L J -- New York, N.Y. -- Science. 1979 Jul 27;205(4404):376-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17790837" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 74
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    Creationists sue to ban museum evolution exhibits (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-06-01
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carter, L J -- New York, N.Y. -- Science. 1979 Jun 1;204(4396):925.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17800412" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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    Patent bill returns bright idea to inventor (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-08-03
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Broad, W J -- New York, N.Y. -- Science. 1979 Aug 3;205(4405):473-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17758768" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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    A new mineralized layer in the hinge of the oyster (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-11-09
    Beschreibung: A discrete, calcareous layer that binds the foliated calcite of the oyster's shell to the organic ligament in the hinge is reported, apparently for the first time. This layer is ultrastructurally, and generally mineralogically, different from the underlying foliated calcite, and is named the ligostracum.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carriker, M R -- Palmer, R E -- New York, N.Y. -- Science. 1979 Nov 9;206(4419):691-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17796935" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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    Computed tomography scans of alcoholics: cerebral atrophy? (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-06-15
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carlen, P L -- Wilkinson, D A -- Holgate, R -- Wortzman, G -- New York, N.Y. -- Science. 1979 Jun 15;204(4398):1238.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17772428" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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    Decisions near on diesels (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-12-21
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carter, L J -- New York, N.Y. -- Science. 1979 Dec 21;206(4425):1381.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17739284" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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    Approval sought for nerve gas pilot plant (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-12-07
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carter, L J -- New York, N.Y. -- Science. 1979 Dec 7;206(4423):1164, 1166.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/504999" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Chemical Warfare Agents ; Containment of Biohazards ; United States
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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    Concerning the technology base (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-02-02
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carey, W D -- New York, N.Y. -- Science. 1979 Feb 2;203(4379):403.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17734116" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 81
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    Circadian rhythm of serotonin N-acetyltransferase activity in organ culture of chicken pineal gland (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-03-23
    Beschreibung: When chicken pineal glands were organ-cultured in darkness, serotonin N-acetyltransferase activity was low during daytime, increased at midnight, and decreased on the next morning. The autonomous increase of N-acetyltransferase activity was suppressed by illumination of the glands. When pineal glands were cultured under a light-dark cycle (LD 12:12), the change of N-acetyltransferase activity continued to oscillate in phase with the light-dark cycle for 3 days.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Deguchi, T -- New York, N.Y. -- Science. 1979 Mar 23;203(4386):1245-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/424750" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acetyltransferases/*metabolism ; Animals ; Chickens ; Circadian Rhythm ; Darkness ; Light ; Melatonin/biosynthesis ; Organ Culture Techniques ; Pineal Gland/enzymology/*physiology ; Serotonin
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 82
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    The dielectric constant of phospholipid bilayers and the permeability of membranes to ions (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-12-07
    Beschreibung: The Born charging equation predicts that the permeability of a phospholipid bilayer membrane to ions should depend markedly on the dielectric constant of the membrane. Increasing the dielectric constant of an artificial bilayer increases its permeability to perchlorate or thiocyanate by a factor of 1000, to a value comparable to that of mitochondrial membranes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dilger, J P -- McLaughlin, S G -- McIntosh, T J -- Simon, S A -- New York, N.Y. -- Science. 1979 Dec 7;206(4423):1196-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/228394" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Chemistry, Physical ; Electric Conductivity ; Hydrocarbons, Chlorinated ; *Lipid Bilayers ; Mitochondria/physiology/ultrastructure ; Perchlorates ; Permeability ; *Phosphatidylcholines ; Physicochemical Phenomena ; Thiocyanates
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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  • 83
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    More Stress on Applied Science at NSF (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-08-17
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carter, L J -- New York, N.Y. -- Science. 1979 Aug 17;205(4407):675-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17781253" target="_blank"〉PubMed〈/a〉
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  • 84
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    An oil insurance policy that may lapse (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-08-10
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carter, L J -- New York, N.Y. -- Science. 1979 Aug 10;205(4406):568-70.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17729667" target="_blank"〉PubMed〈/a〉
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    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 85
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    Oh, Sweet CONAES, Where Art Thou? (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-07-27
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carter, L J -- New York, N.Y. -- Science. 1979 Jul 27;205(4404):377.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17790838" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 86
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    Uncontrolled SO2 Emissions Bring Acid Rain (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-06-15
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carter, L J -- New York, N.Y. -- Science. 1979 Jun 15;204(4398):1179-81.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17772411" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 87
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    Preferential transmission of the Z deficient allele of alpha 1-antitrypsin (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-07-27
    Beschreibung: The transmission of the Z deficient allele of alpha 1-antitrypsin was studied in 23 families, each with a single parent heterozygous for this allele. When the mother carried the Z allele, the distribution of phenotypes in the children did not differ significantly from the expected frequency. In contrast, when the father was the carrier, a significant increase of heterozygous phenotypes was observed in the children. This observation suggests that a selective advantage is associated with the expression of the Z allele in male gametes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chapuis-Cellier, C -- Arnaud, P -- New York, N.Y. -- Science. 1979 Jul 27;205(4404):407-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/313077" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Alleles ; Child ; Female ; Heterozygote Detection ; Humans ; Male ; *Polymorphism, Genetic ; Sex Factors ; alpha 1-Antitrypsin/genetics ; *alpha 1-Antitrypsin Deficiency
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 88
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    Fish, crustaceans, and the sea floor under the ross ice shelf (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-02-02
    Beschreibung: Baited traps and a camera lowered through the Ross Ice Shelf, Antarctica, at a point 475 kilometers from the open Ross Sea and to 597 meters below sea level revealed the presence of fish, many amphipods, and one isopod. Biological or current markings were not evident on a soft bottom littered with subangular lumps. A fish was caught through a crevasse 80 kilometers from the shelf edge.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bruchhausen, P M -- Raymond, J A -- Jacobs, S S -- Devries, A L -- Thorndike, E M -- Dewitt, H H -- New York, N.Y. -- Science. 1979 Feb 2;203(4379):449-51.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17734141" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 89
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    A tropical flora (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-05-18
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Burger, W C -- New York, N.Y. -- Science. 1979 May 18;204(4394):758-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17840254" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 90
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    An Industry Study of TSCA: How to Achieve Credibility? (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-01-19
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carter, L J -- New York, N.Y. -- Science. 1979 Jan 19;203(4377):247-2491.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17738987" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 91
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    Flatworm control of mosquito larvae in rice fields (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-12-21
    Beschreibung: We describe some flatworms (some in the genus Mesostoma) that kill mosquito larvae and may account for the variability in the population densities of Culex tarsalis and Anopheles freeborni in rice fields. When mosquito larvae brush against these worms, the larvae immediately become paralyzed and die. When C. tarsalis larvae are placed inside floating cages that exclude flatworms (50-micromter mesh), there is a fourfold increase in the their survival. Rice fields that have abundant mosquito populations lack flatworms. Most such fields have only recently been turned over to rice production, suggesting that the flatworms have difficulty dispersing to new fields but, once established, are able to overwinter and control mosquitoes for the subsequent years of rice production.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Case, T J -- Washino, R K -- New York, N.Y. -- Science. 1979 Dec 21;206(4425):1412-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/41321" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Agriculture/*methods ; Animals ; Anopheles/physiology ; California ; Culex/physiology ; Culicidae/*physiology ; Insect Control/*methods ; Larva ; *Oryza ; Platyhelminths/*physiology
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 92
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    Life in thermal habitats (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-02-09
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Castenholz, R W -- New York, N.Y. -- Science. 1979 Feb 9;203(4380):538-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17731683" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 93
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    College mission statements (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-09-07
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chait, R -- New York, N.Y. -- Science. 1979 Sep 7;205(4410):957.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17795540" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 94
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    Light and efferent activity control rhabdom turnover in Limulus photoreceptors (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-10-19
    Beschreibung: Photosensitive membrane structures in the retinular cells of the Limulus lateral eye are broken down and renewed daily. The first light onset causes a rapid, synchronous disassembly and buildup of the rhabdom in each photoreceptor cell. The entire process is complete within 30 minutes. Blocking the efferent input to the retina from the brain blocks the turnover of the rhabdom, and mimicking the efferent input by optic nerve stimulation restores it.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chamberlain, S C -- Barlow, R B Jr -- New York, N.Y. -- Science. 1979 Oct 19;206(4416):361-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/482946" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Efferent Pathways/physiology ; Electric Stimulation ; Horseshoe Crabs/*physiology ; *Light ; Optic Nerve/physiology ; Photoreceptor Cells/cytology/*physiology ; Regeneration ; Retina/cytology/physiology ; Time Factors
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 95
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    Rainfall changes in summer caused by st. Louis (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-07-27
    Beschreibung: Precipitation in and around St. Louis was investigated to study urban influences on summer precipitation conditions. Prerain winds were used to define the "downwind area" where influences would be greatest, and wind-sorted rains were combined into monthly and summer totals. Seventy-five percent of the 16 rain patterns revealed a rainfall maximization downwind of the city, and the rainfall in the downwind area was 22.7 percent more than the rainfall upwind of St. Louis where no urban influences existed. Various statistical tests of the summer rainfall distribution reveal the downwind rainfall to be significantly greater than elsewhere and supportive of other findings that St. Louis increases rainfall.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Changnon, S A Jr -- New York, N.Y. -- Science. 1979 Jul 27;205(4404):402-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17790853" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 96
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    Brain stimulation reinforcement: implications of an electrode artifact (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-06-15
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cantor, M B -- New York, N.Y. -- Science. 1979 Jun 15;204(4398):1235-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/451570" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Brain/*physiology ; Electric Stimulation ; Electrodes ; Methods ; Rats ; *Reinforcement (Psychology)
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 97
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    Science and public understanding (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-05-25
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carey, W D -- New York, N.Y. -- Science. 1979 May 25;204(4395):797.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17730506" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 98
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    Seaweed dermatitis: structure of lyngbyatoxin A (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-04-13
    Beschreibung: A highly inflammatory and vesicatory substance, lyngbyatoxin A, has been isolated from the lipid extract of a Hawaiian shallow-water variety of Lyngbya majuscula Gomont; its gross structure was determined from chemical and spectral data. Lyngbyatoxin A is closely related to teleocidin B, a poisonous substance associated with several strains of Streptomyces.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cardellina, J H 2nd -- Marner, F J -- Moore, R E -- New York, N.Y. -- Science. 1979 Apr 13;204(4389):193-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/107586" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Alkaloids/*toxicity ; Animals ; *Cyanobacteria ; Dermatitis, Contact/*etiology ; *Dermotoxins ; Indoles/toxicity ; *Marine Toxins ; Mice
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 99
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    Science policy in washington (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-04-20
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carey, W D -- New York, N.Y. -- Science. 1979 Apr 20;204(4390):259.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17800340" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 100
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    Venus: further evidence of impact cratering and tectonic activity from radar observations (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1979-06-29
    Beschreibung: Earth-based radar images at a resolution of 10 kilometers show a diverse surface terrain on Venus, probably produced by both impact events and tectonic activity. Only a small number of craters of apparent impact origin are seen. Large-scale features show lineaments and parallel ridges suggesting tectonic origins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Campbell, D B -- Burns, B A -- Boriakoff, V -- New York, N.Y. -- Science. 1979 Jun 29;204(4400):1424-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17814203" target="_blank"〉PubMed〈/a〉
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    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
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