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  • Nature Publishing Group  (62.219)
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  • 1
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    Precise single-grain 40Ar/39 Ar dating of a cold to warm climate transition in Central Europe (1989)
    Nature Publishing Group
    In:  Nature, 342 (6249). pp. 523-525.
    Details
    Publikationsdatum: 2018-03-02
    Beschreibung: RECENT advances in 40Ar/39Ar dating1,2 have made it possible to date individual K-feldspar grains from Pleistocene tephra, a capability that greatly improves the reliability and temporal resolving power of the method. Here we apply these new techniques to the dating of a phonolite tephra from the East Eifel volcanic field in West Germany, which is sandwiched between loess and palaeosol (alfisol) deposits, and which was therefore erupted during the transition from a glacial to an interglacial period. Our age estimate for this transition is 215±4 kyr (1 σ), which has important implications for the marine δ18O timescale and for models of global climate change during the Pleistocene. The results show that single-grain dating can detect and compensate for the large quantities of xenocrystic contaminants which are found in many tephra deposits. This technique could be used to date the tephra layers found in marine sediment cores and the results could greatly enhance the reliability of the marine δ18O timescale for more rigorous Fourier analysis testing of the Milankovitch hypothesis.
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  • 2
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    Satellite measurements of sea surface cooling during hurricane Gloria (1987)
    Nature Publishing Group
    In:  Nature, 326 (6111). pp. 373-375.
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    Publikationsdatum: 2018-03-02
    Beschreibung: Hurricanes and other strong storms can cause important decreases in sea surface temperature by means of vertical mixing within the upper ocean, and by air–sea heat exchange. Here we use satellite-derived infrared images of the western North Atlantic to study sea surface cooling caused by hurricane Gloria (1985). Significant regional variations in sea surface cooling are well correlated with hydrographic conditions. The greatest cooling (up to 5°C) occurred in slope waters north of the Gulf Stream where the seasonal thermocline is shallowest and most compressed; moderate cooling (up to 3 °C) occurred in the open Sargasso Sea where the thermocline is deeper and more diffused; little or no cooling occurred in shallow coastal waters (bottom depth less than 20 m) which were isothermal before the passage of hurricane Gloria. There is a pronounced right-side asymmetry of sea surface cooling with stronger (by a factor of 4) and more extensive (by a factor of 3) cooling found on the right side of the hurricane track. These qualitative results are consistent with the notion that vertical mixing within the upper ocean is the dominant sea surface cooling mechanism of hurricanes.
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  • 3
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    Relative departures in July temperatures in northern Canada for the past 6,000 yr (1981)
    Nature Publishing Group
    In:  Nature, 289 (5794). pp. 164-167.
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    Publikationsdatum: 2016-04-11
    Beschreibung: There has been concern about recent temperature trends and the future effects of CO2 concentrations in the atmosphere1,2; but instrumental records only cover a few decades to a few centuries and it is essential that proxy data sources, such as pollen spectra from peats and lake sediments, be carefully interpreted as climate records. Several workers have shown statistically significant associations between the modern pollen rain and climatic parameters, an approach that by-passes the recognition of pollen/vegetation units. Statistically defined equations that associate abiotic and biotic elements are called transfer functions. We report here on the application of transfer function equations to nine middle and late Holocene peat and lake sediment sequences from northern Canada (Fig. 1).
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  • 4
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    Palaeoceanography: Biomarkers for ancient climates (1986)
    Nature Publishing Group
    In:  Nature, 320 (6058). pp. 107-108.
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    Publikationsdatum: 2016-03-01
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  • 5
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    Particulate organic carbon flux in the oceans-surface productivity and oxygen utilization (1980)
    Nature Publishing Group
    In:  Nature, 288 (5788). pp. 260-263.
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    Publikationsdatum: 2016-03-01
    Beschreibung: Organic detritus passing from the sea surface through the water column to the sea floor controls nutrient regeneration, fuels benthic life and affects burial of organic carbon in the sediment record. Particle trap systems have enabled the first quantification of this important process. The results suggest that the dominant mechanism of vertical transport is by rapid settling of rare large particles, most likely of faecal pellets or marine snow of the order of 〉200 μm in diameter, whereas the more frequent small particles have an insignificant role in vertical mass flux4–6. The ultimate source of organic detritus is biological production in surface waters of the oceans. I determine here an empirical relationship that predicts organic carbon flux at any depth in the oceans below the base of the euphotic zone as a function of the mean net primary production rate at the surface and depth-dependent consumption. Such a relationship aids in estimating rates of decay of organic matter in the water column, benthic and water column respiration of oxygen in the deep sea and burial of organic carbon in the sediment record.
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  • 6
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    News from a deepening hole (1987)
    Nature Publishing Group
    In:  Nature, 325 (6104). pp. 484-485.
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    Publikationsdatum: 2016-05-18
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  • 7
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    Meandering of the subtropical front south-east of the Azores (1982)
    Nature Publishing Group
    In:  Nature, 300 (5889). pp. 245-246.
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    Publikationsdatum: 2018-03-08
    Beschreibung: A subtropical front was observed in the area south and southeast of the Azores during cruises of FS Meteor and FS Poseidon in early 1982. The front has a basically west–east extension, with considerable meandering observed. Meso-scale eddies are found on both sides. The overall flow pattern corresponds to earlier results on geopotential differences in the upper northeast Atlantic, but the baroclinic transport of the order of 107 m3 s−1 is found to be concentrated in a 60-km wide jet. We suggest here that the current band is part of the gyre circulation, resulting from a branching of the North Atlantic Current.
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  • 8
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    A Lagrangian mixed layer model of Atlantic 18 C water formation (1986)
    Nature Publishing Group
    In:  Nature, 319 . pp. 574-576.
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    Publikationsdatum: 2019-01-21
    Beschreibung: One of the most striking features of the upper North Atlantic Ocean is an extensive layer of water with temperature close to 18°C and salinity close to 36.5‰, (ref. 1). This 18°C water is formed by winter convection in the Sargasso sea2,3, but aspects of the annual rate of 18°C water formation remain obscure4. We have simulated this water mass formation by integrating a one-dimensional model along a 4-yr trajectory of a water column circulating around the Sargasso Sea. Winter convection is deep (≥200 m) in regions where the ocean suffers a net annual heat loss to the atmosphere, and shallow (≤lOOm) where the ocean gains heat each year. The origin of the thermostad (nearly isothermal layer) is a thick layer of nearly homogeneous water subducted beneath the seasonal boundary layer in the year that the water column passes through the line dividing annual cooling from annual heating. We estimate the annual production of 18°C water to be 446,000 km3 yr−1. Downstream, more stratified central water is formed each year at a rate that depends more on Ekman pumping (wind-forced convergence) than on the decreasing depth of winter convection
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  • 9
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    Fluxes of biogenic components from sediment trap deployment in circumpolar waters of the Drake Passage (1982)
    Nature Publishing Group
    In:  Nature, 299 (5879). pp. 145-147.
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    Publikationsdatum: 2019-01-21
    Beschreibung: Circumpolar surface waters dominate the circulation of the Southern Ocean and sustain one of the ocean's largest standing stocks of biomass thereby producing a significant output of biogenic components, mainly diatoms, to the bottom sediments. Generally transit of biogenic matter from the sea surface to the sea floor affects nutrient regeneration fuels benthic life and transfers signals to the sediment record1–5. Reliable quantification of the relationship between biological production, fractionation of skeletal and tissue components and bottom sediment accumulation depends on direct vertical flux measurements from sediment trap deployments6–9, which have proved to be most scientifically productive10–13. We now present data on vertical mass fluxes from the Southern Ocean and evidence for strong biogeochemical fractionation between organic carbon-, nitrogen- and phosphorus-containing compounds, siliceous and calcareous skeletal remains, and refractory aluminosilicates.
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  • 10
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    Routing of meltwater from the Laurentide Ice Sheet during the Younger Dryas cold episode (1989)
    Nature Publishing Group
    In:  Nature, 341 (6240). pp. 318-321.
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    Publikationsdatum: 2016-06-16
    Beschreibung: ROOTH proposed that the Younger Dryas cold episode, which chilled the North Atlantic region from 11,000 to 10,000 yr BP, was initiated by a diversion of meltwater from the Mississippi drainage to the St Lawrence drainage system. The link between these events is postulated to be a turnoff, during the Younger Dryas cold episode, of the North Atlantic's conveyor-belt circulation system which currently supplies an enormous amount of heat to the atmosphere over the North Atlantic region2. This turnoff is attributed to a reduction in surface-water salinity, and hence also in density, of the waters in the region where North Atlantic Deep Water (NADW) now forms. Here we present oxygen isotope and accelerator radiocarbon measurements on planktonic foraminifera from Orca Basin core EN32-PC4 which reveal a significant reduction in meltwater flow through the Mississippi River to the Gulf of Mexico from about 11,200 to 10,000 radiocarbon years ago. This finding is consistent with the record for Lake Agassiz which indicates that the meltwater from the southwestern margin of the Laurentide Ice Sheet was diverted to the northern Atlantic Ocean through the St Lawrence valley during the interval from ~11,000 to 10,000 years before present (yr BP).
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  • 11
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    Glacial and interglacial wind regimes over the eastern subtropical Atlantic and North-West Africa (1981)
    Nature Publishing Group
    In:  Nature, 293 (5829). pp. 193-196.
    Details
    Publikationsdatum: 2016-09-02
    Beschreibung: Analysis of aeolo-marine dust deposits in the subtropical eastern Atlantic enables the strength of the major wind patterns during the late Quaternary to be evaluated and gives an insight into the climate of North Africa.
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  • 12
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    Anomalous 13C enrichment in modern marine organic carbon (1985)
    Nature Publishing Group
    In:  Nature, 315 (6016). pp. 216-218.
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    Publikationsdatum: 2016-10-26
    Beschreibung: Marine organic carbon is heavier isotopically (13C enriched) than most land-plant or terrestrial organic C1. Accordingly, δ 13C values of organic C in modern marine sediments are routinely interpreted in terms of the relative proportions of marine and terrestrial sources of the preserved organic matter2,3. When independent geochemical techniques are used to evaluate the source of organic matter in Cretaceous or older rocks, those rocks containing mostly marine organic C are found typically to have lighter (more-negative) δ 13C values than rocks containing mostly terrestrial organic C. Here we conclude that marine photosynthesis in mid-Cretaceous and earlier oceans generally resulted in a greater fractionation of C isotopes and produced organic C having lighter δ 13C values. Modern marine photosynthesis may be occurring under unusual geological conditions (higher oceanic primary production rates, lower P CO2) that limit dissolved CO2 availability and minimize carbon isotope fractionation4.
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  • 13
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    Does the ocean–atmosphere system have more than one stable mode of operation? (1985)
    Nature Publishing Group
    In:  Nature, 315 (6014). pp. 21-26.
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    Publikationsdatum: 2016-06-10
    Beschreibung: The climate record obtained from two long Greenland ice cores reveals several brief climate oscillations during glacial time. The most recent of these oscillations, also found in continental pollen records, has greatest impact in the area under the meteorological influence of the northern Atlantic, but none in the United States. This suggests that these oscillations are caused by fluctuations in the formation rate of deep water in the northern Atlantic. As the present production of deep water in this area is driven by an excess of evaporation over precipitation and continental runoff, atmospheric water transport may be an important element in climate change. Changes in the production rate of deep water in this sector of the ocean may push the climate system from one quasi-stable mode of operation to another.
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  • 14
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    Unpleasant surprises in the greenhouse? (1987)
    Nature Publishing Group
    In:  Nature, 328 (6126). pp. 123-126.
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    Publikationsdatum: 2016-06-10
    Beschreibung: There is now clear evidence that changes in the Earth's climate may be sudden rather than gradual. It is time to put research into the build-up of carbon dioxide in the atmosphere on a better footing.
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  • 15
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    New evidence from the South China Sea for an abrupt termination of the last glacial period (1988)
    Nature Publishing Group
    In:  Nature, 333 (6169). pp. 156-158.
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    Publikationsdatum: 2016-06-10
    Beschreibung: Abrupt changes in climatic conditions have been seen at high latitudes in the North Atlantic and the Antarctic at 13 kyr BP. It is important to determine whether this abrupt change was confined to high-latitude regions or whether it was global. Here we present results demonstrating an abrupt change in the rate and character of sedimentation in the South China Sea at the close of the last glacial period. Radiocarbon dating and its position in the oxygen isotope shift suggest that this change may be coincident with the changes found at high latitudes.
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  • 16
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    New evidence from the South China Sea for an abrupt termination of the last glacial period (1988)
    Nature Publishing Group
    In:  Nature, 333 (6169). pp. 156-158.
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    Publikationsdatum: 2016-06-15
    Beschreibung: Abrupt changes in climatic conditions have been seen at high latitudes in the North Atlantic1 and the Antarctic2,3 at 13 kyr BP. It is important to determine whether this abrupt change was confined to high-latitude regions or whether it was global. Here we present results demonstrating an abrupt change in the rate and character of sedimentation in the South China Sea at the close of the last glacial period. Radiocarbon dating and its position in the oxygen isotope shift suggest that this change may be coincident with the changes found at high latitudes.
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  • 17
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    Geochemical and climatic effects of increased marine organic carbon burial at the Cenomanian/Turonian boundary (1988)
    Nature Publishing Group
    In:  Nature, 335 (6192). pp. 714-717.
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    Publikationsdatum: 2016-10-24
    Beschreibung: Perhaps the most significant event in the Cretaceous record of the carbon isotope composition of carbonate1,2, other than the 1–2.5 ‰ negative shift in the carbon isotope composition of calcareous plankton at the Cretaceous/Tertiary boundary3, is the rapid global positive excursion of ~2 ‰ (13C enrichment) which took place between ~91.5 Myr and 90.3 Myr (late Cenomanian to earliest Turonian (C/T boundary event))1,4,5. This excursion has been attributed to a change in the isotope composition of the marine total dissolved carbon (TDC) reservoir resulting from an increase in rate of burial of 13C-depleted organic carbon, which coincided with a major global rise in sea level5 during the so-called C/T oceanic anoxic event (OAE)6. Here we present new data, from nine localities, which demonstrate that a positive excursion in the carbon isotope composition of organic carbon at or near the C/T boundary7,8 is nearly synchronous with that for carbonate and is widespread throughout the Tethys and Atlantic basins (Fig. 1), as well as in more high-latitude epicontinental seas. The postulated increase in the rate of burial of organic carbon may have had a significant effect on CO2 and O2 concentrations in the oceans and atmosphere, and consequent effects on global climate and sedimentary facies.
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  • 18
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    Gold and native copper in supergene sulfides from the Mid-Atlantic Ridge (1988)
    Nature Publishing Group
    In:  Nature, 333 (6168). pp. 64-66.
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    Publikationsdatum: 2014-04-25
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  • 19
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    The first fossil cephalopod statoliths to be described from Europe (1980)
    Nature Publishing Group
    In:  Nature, 287 (5783). pp. 628-630.
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    Publikationsdatum: 2016-11-15
    Beschreibung: Statoliths of cephalopods are small, hard calcareous stones which lie within the cartilaginous skulls of octopods, sepioids and teuthoids1. Fossil statoliths, clearly belonging to genera which are alive today, have previously been described from 11 Cenozoic deposits spanning from the Eocene to the Pleistocene in North America2–5. Such statoliths are of particular interest because they provide a means of studying the evolution of living cephalopod groups which have no calcareous shells, including the cosmopolitan and numerous teuthoids and octopods. Here, the first cephalopod statoliths to be recognized in European deposits are described and identified as Loligo sp. They are compared with the North American fossil Loligo species and statoliths removed from the two living Loligo species of Europe.
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  • 20
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    Mantle plume noble gas component in glassy basalts from Reykjanes Ridge (1983)
    Nature Publishing Group
    In:  Nature, 305 (5933). pp. 403-407.
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    Publikationsdatum: 2016-11-23
    Beschreibung: Basalts from the Reykjanes Ridge contain noble gases delivered from the non-degassed lower mantle by the Iceland plume. These lower mantle gases are thought to be a mixture of planetary and solar components, as would be expected if the Earth accreted from fine silicate particles.
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  • 21
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    Giant squids may die when exposed to warm water currents (1983)
    Nature Publishing Group
    In:  Nature, 303 (5916). pp. 422-423.
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    Publikationsdatum: 2019-04-16
    Beschreibung: Strandings of the giant squid, Architeuthis monachus (Steen-strup), have always stirred attention because of the rarity and enormous size of these cephalopods. These animals have never been observed in their natural habitat and little is known about their physiology and ecology. Stranding of giant squids in Newfoundland waters has been correlated with the inflow of warm water, suggesting that increased temperature may be causing their death1. Squids have also been carried to the Norwegian coast with the warm North Atlantic current2 and on 23 August 1982 a live specimen was caught off Radöy near Bergen, Norway (Fig. 1). This catch gave an unprecedented opportunity to study the effects of temperature on the oxygen binding properties of blood from the giant squid. The present finding of an excess of a fourfold decrease in O2 affinity when temperature is increased from 6.4 to 15°C strongly suggests that giant squids may suffocate from arterial desaturation when increased ambient temperatures are experierced.
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  • 22
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    Effects of microbe activity (1988)
    Nature Publishing Group
    In:  Nature, 333 (6168). pp. 17-18.
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    Publikationsdatum: 2019-05-06
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  • 23
    Digitale Medien
    Digitale Medien
    FDA on overseas data: US drag market to open up? (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 772-772 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Washington New drugs may be approved for sale in the United States solely on the basis of foreign data under a proposed reorganization of the Food and Drug Administration (PDA) new drug application process. One effect may be to facilitate the entry of drugs developed abroad into the US market. ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299772a0
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  • 24
    Digitale Medien
    Digitale Medien
    Recent advances in optical bistability (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 779-780 
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    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] IN recent years, optical bistability has been a subject of intense research in quantum electronics because of its potential usefulness in optical data processing and all-optical logic and computing systems1. There has already been a conference on the topic2, and at the Xllth International Quantum ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299779a0
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  • 25
    Digitale Medien
    Digitale Medien
    Hot galactic gas and narrow line quasar absorption systems (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 783-788 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Observations of the hot interstellar gas (T ≫ 104 K) are numerous and imply that the temperatures of substantial amounts of the disk gas to be 2–3 × 105 K and of the halo gas to be 8 × 104 K, but the theoretical models to explain the ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299783a0
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  • 26
    Digitale Medien
    Digitale Medien
    Terrestrial-type xenon in meteoritic troilite (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 807-810 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Radiogenic 129Xe has been observed in samples from the Earth's mantle, but the abundance pattern of the eight nonradiogenic isotopes is atmospheric rather than chondritic6. Terrestrial' Xe will therefore be used instead of 'atmospheric Xe' in referring to the relative abundances of the ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299807a0
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  • 27
    Digitale Medien
    Digitale Medien
    Phase transition in KOH-doped hexagonal ice (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 810-812 
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    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The presence of residual entropy implies a lack of thermal equilibrium in the crystal below a certain temperature. In fact, we have observed relaxational heat-capacity anomalies of - 100 K for ordinary ice5 and 115 K for heavy ice6, and have studied the associated enthalpy relaxation by subjecting ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299810a0
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  • 28
    Digitale Medien
    Digitale Medien
    MERLIN observations of superluminal radio sources (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 788-793 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Powerful extragalactic radio sources may all be members of a single family in which those showing superluminal behaviour are the ones in which a relativistic jet is directed towards the observer. The superluminal sources are shown to have extended radio structures the form of which is consistent ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299788a0
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  • 29
    Digitale Medien
    Digitale Medien
    The Crab Nebula's progenitor (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 803-805 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Briefly, the Crab consists of a pulsar (assumed here to have a mass of ^lAM) and a nebula mass of 1.2-3.0M (refs 5,6) which has a helium overabundance of l.6〈XHc/XH〈S (where X is an element's mass fraction). The oxygen abundance (X0) is -0.003 (refs 5, 6), which is less than the solar value ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299803a0
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  • 30
    Digitale Medien
    Digitale Medien
    Lemurs, dead and alive (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 843-843 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE prosimians, commonly referred to as "lower primates", can be loosely regarded as representing a primitive grade closer to the ancestral primate condition than the modern monkeys and apes. For this reason, any study of primate evolutionary biology is particularly dependent upon an understanding ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299843a0
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  • 31
    Digitale Medien
    Digitale Medien
    Is the long recession at an end? (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 667-667 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Hurrah, the long recession is coming to an end. That is the simplest interpretation of what has happened in the past few weeks on the international stock markets, Wall Street in particular. For if people are willing once again enthusiastically to invest in the shares of industrial corporations ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299667a0
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  • 32
    Digitale Medien
    Digitale Medien
    Swedish crisis: keeping tryst (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 668-669 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Sweden's Social Democratic Party was returned to power last month with an election platform that included a major commitment to science, higher education and technical research. The first actions of the new government, however, were to devalue the krona and to announce the guidelines of a new ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299668b0
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  • 33
    Digitale Medien
    Digitale Medien
    Tropical medicine: WHO programme blessed (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 670-670 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The World Health Organization (WHO) Special Programme on Research and Training in Tropical Diseases has done well during its first five years of operation, according to the report of an external review committee set up by Dr D.E. Bell of the Harvard School of Public Health at the instance of the ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299670b0
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  • 34
    Digitale Medien
    Digitale Medien
    Differential expression of steroid sulphatase locus on active and inactive human X chromosome (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 838-840 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The affected males in the pedigree shown in Fig. 1 have X-linked ichthyosis13 and complete deficiency of microsomal STS activity, based on assays using cholesterol sulphate and dehydroepiandrosterone sulphate (DHEAS) as steroid substrates (Tables 2, 3). Heterozygotes II-4, II-7 and II-8 are ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299838a0
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  • 35
    Digitale Medien
    Digitale Medien
    UK universities: Ex-premier attacks Thatcher (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 671-671 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Mr Edward Heath, the former Conservative Prime Minister, fresh from his denunciation earlier this month of government economic policy, last week broadened his attack on his party's government to the field of higher education. Speaking at the London School of Hygiene and Tropical Medicine, he ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299671a0
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  • 36
    Digitale Medien
    Digitale Medien
    French reactors (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 672-672 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The French construction programme for nuclear reactors may be halved in 1984 and 1985, if budget-conscious elements in the government have their way. The reason: a ballooning government deficit and borrowing requirement, immense debts of FF120,000 million (£10,000 million) at Electricite de ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299672b0
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  • 37
    Digitale Medien
    Digitale Medien
    Antarctic sulphate budget (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 677-678 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] ANTARCTICA represents a vast island remote from the other continents of the Southern Hemisphere. Most of the continent is covered by several kilometres of ice and the total ice-free area is very small. On the high central plateau the air is the cleanest in the world and the impurity content of the ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299677a0
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  • 38
    Digitale Medien
    Digitale Medien
    Activity in red-dwarf stars (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 680-681 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] MANY red-dwarf stars exhibit rotational light-curve modulation (the BY Draconis phenomenon) and flaring behaviour in the optical and radio regions of the spectrum (the UV Ceti phenomenon). Within the past decade, improved detectors, satellites and radio interferometry have led to a revolution in ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299680a0
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  • 39
    Digitale Medien
    Digitale Medien
    Mitochondrial and chloroplast genomes of maize have a 12-kilobase DNA sequence in common (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 698-702 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] A 12-kilobase DNA sequence has been identified in the maize mitochondrial genome which is homologous to part of the inverted repeat of the maize chloroplast genome. In chloroplasts the sequence contains a 16S rRNA gene, and also the coding sequences for tRNAIle and ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299698a0
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  • 40
    Digitale Medien
    Digitale Medien
    Surface studies on a leached sphene glass (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 708-710 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] CaTiSiO5 glasses were prepared by melting an intimately mixed charge of calcium carbonate, titanium dioxide and silica at 1,450 C for 1 h, followed by casting 1-cm diameter cylinders in stainless steel moulds. The tendency of the glass to crystallize or phase separate was avoided by keeping the ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299708a0
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  • 41
    Digitale Medien
    Digitale Medien
    Use of γ -zirconium phosphate for Cs removal from radioactive waste (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 707-708 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The crystalline phases of zirconium phosphate have layer structures similar to 2:1 clay minerals11'13. The crystalline phase with a composition Zr(HPO4)2 * H2O is called a-zirconium phosphate (a-ZrP) while Zr(HPO4)2 o 2H2O is called y-zirconium phosphate (y-ZrP). (The extensive literature on ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299707a0
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  • 42
    Digitale Medien
    Digitale Medien
    10 Be in island-arc volcanoes and implications for subduction (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 718-720 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The distinctive characteristics of the volcanoes ringing the great Pacific Basin and lining the Java-Sumatra arc were recognized long before the current ideas that relate them to subducting lithospheric plates found favour. Nevertheless, it was the notion of a dynamic mantle that gave the study of ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299718a0
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  • 43
    Digitale Medien
    Digitale Medien
    Heterogeneous sensitivity of cultured dorsal root ganglion neurones to opioid peptides selective for µ - and δ -opiate receptors (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 730-732 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] For these studies we selected the opioid peptides morphicep-tin and leucine-enkephalin. Leucine-enkephalin (Leu-enke-phalin) is about 1,000-fold more potent than morphiceptin at 8 -receptors whereas the two ligands are approximately equipotent at pt-receptors11'17'18'22'29. Preparation of mouse ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299730a0
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  • 44
    Digitale Medien
    Digitale Medien
    Murine model for pertussis vaccine encephalopathy: linkage to H – 2 (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 738-740 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] During a study of the effects of B. pertussis as an adjuvant in experimental allergic encephalomyelitis (EAE)7, we discovered a lethal shock-like syndrome in BALB/c mice after immunization with heat-killed B. pertussis vaccine and sensitiz-ation to bovine serum albumin (BSA). Heat-killed B. ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299738a0
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  • 45
    Digitale Medien
    Digitale Medien
    Chromosomal localization of human cellular homologues of two viral oncogenes (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 747-749 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Two mammalian and four avian cell-derived viral oncogenes encoding proteins with tyrosine-specific protein kinase activity have been described1. One of these, c-fes, is represented within the genomes of two independent isolates of feline sarcoma virus (FeSV), Gardner and Snyder-Theilen, both of ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299747a0
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  • 46
    Digitale Medien
    Digitale Medien
    Redesigning enzyme structure by site-directed mutagenesis: tyrosyl tRNA synthetase and ATP binding (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 756-758 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The tyrosyl tRNA synthetase (TyrTS) catalyses the aminoacylation of tRNATyr with tyrosine by a two-step mechanism in which tyrosine is first activated by ATP to form tyrosyl adenylate and then transferred to tRNATyr (refs 1,2). The nucleotide sequence of the gene has been determined from a clone in ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299756a0
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  • 47
    Digitale Medien
    Digitale Medien
    GABA directly affects electrophysiological properties of pituitary pars intermedia cells (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 733-734 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Isolated endocrine cells of rat pars intermedia maintained in vitro spontaneously discharge action potentials6 which are Na spikes with a Ca component11. In such cells, GABA (2x 106 or 1 x 105 M) elicited a brief flurry of action potentials of diminishing amplitude, followed by arrest of action ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299733a0
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  • 48
    Digitale Medien
    Digitale Medien
    Cloned HBV DNA causes hepatitis in chimpanzees (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 740-742 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Table 1 Composition of the DNA mixture used for inoculation and transfection of chimpanzee Physical state HBV DNA species HBV 14 HBV 2 HBV 6 Tandem duplications pSHH 14.3 (40 pmol) pSHH2.1 (8 pmol) Closed rings pHBV 14.1 (8 pmol) pHBV6(6 pmol) Source, physical state and amount of ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299740a0
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  • 49
    Digitale Medien
    Digitale Medien
    Rearrangements between the immunoglobulin heavy chain gene J H and C µ regions accompany normal B lymphocyte differentiation in vitro (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 742-744 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Rearrangements between /H and C^ sequences were first detected among immimoglobulin-secreting hybridoma and plasmacytoma populations5'7. However, these rearrangements were largely dismissed due to the possibility that they represented tumour artefacts in these cell populations9. We therefore sought ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299742a0
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  • 50
    Digitale Medien
    Digitale Medien
    Electron microscopy of t -allele synaptonemal complexes discloses no inversions (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 752-754 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The cross-over suppression of t haplotypes masks the true genetic nature of the region. It has previously been convenient to consider the t alleles as point mutations mapping near T. Lyon's thorough analysis of this chromosomal region using rare cross-overs established the non-allelism of several ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299752a0
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  • 51
    Digitale Medien
    Digitale Medien
    Tapping the immunological repertoire to produce antibodies of predetermined specificity (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 592-596 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] We understand the structure of antibodies in detail, but know little about the molecular basis of the immunogenicity of proteins. Recent experiments have shown that chemically synthesized peptides representative of virtually any part of the surface of a protein can elicit antibodies reactive with ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299592a0
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  • 52
    Digitale Medien
    Digitale Medien
    Arsenic in Napoleon's wallpaper (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 626-627 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] After Napoleon Bonaparte's death in May 1821, autopsy revealed an enlarged liver and a stomach lesion12. However, later neutron activation analyses of his hair4'8 have found abnormal quantities of arsenic in some (but not all) samples from his period on St Helena. Forshufvud and Weider have argued ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299626a0
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  • 53
    Digitale Medien
    Digitale Medien
    Induction of immortality is an early event in malignant transformation of mammalian cells by carcinogens (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 633-635 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Rapidly dividing fusiform cells which, in minimal media, dominate cell cultures derived from primary tissue, are generally assumed to be fibroblasts. Even though the precise origin of cells which adapt easily to culture has not been established14, they have formed the basis of most cell culture ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299633a0
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  • 54
    Digitale Medien
    Digitale Medien
    Ia invariant chain detected on lymphocyte surfaces by monoclonal antibody (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 644-645 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The belief that Is chains were not expressed on the cell surface was based on the finding that Ij chains are only observed when metabolically labelled antigens are immunoprecipitated with anti-la antibodies and not when surf ace-iodinated material was investigated4. In an attempt to raise ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299644a0
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  • 55
    Digitale Medien
    Digitale Medien
    Discordant layering relations in the Fongen–Hyllingen basic intrusion (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 625-626 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The 160 km Fongen-Hyllingen basic complex2 (Fig. 1) is a strongly differentiated layered intrusion situated in the Trond-heim region of Norway (11.5E, 63 N). In spite of being emplaced synorogenically before the culmination of the Caledonian regional deformation and metamorphism5, it exhibits ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299625a0
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  • 56
    Digitale Medien
    Digitale Medien
    Retroviruses induce granulocyte–macrophage colony stimulating activity in fibroblasts (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 638-640 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Granulocyte-macrophage colony forming cells (GM-CFC) are haematopoietic progenitor cells which respond to GM-CSA by proliferation and differentiation in vitro10 yielding either pure or mixed colonies of granulocytes and macrophages. Sera of mice having virus-induced leukaemias contain large amounts ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299638a0
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  • 57
    Digitale Medien
    Digitale Medien
    Post-transcriptional control of tubulin biosynthesis during leishmanial differentiation (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 650-652 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Total cellular poly(A)+ RNA was extracted from the promastigotes by phenol-SDS extraction13 and oligo(dT)-cellulose elu-tion14. RNA was translated in wheat germ15 and rabbit reticulocyte lysate16 cell-free systems and the products were compared with in vivo metabolically labelled proteins. As shown ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299650a0
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    Digitale Medien
    Australian Physiology congress:ICSU blacklist (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 481-481 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Canberra The Australian Academy of Science has averted the withdrawal by the International Union of Physiological Science (IUPS) of sponsorship for the physiology congress scheduled to take place in Sydney in August-September next year. As a consequence of the Australian government's refusal to ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299481c0
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  • 59
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    Digitale Medien
    Brain catecholamines in schizophrenia : a good case for noradrenaline (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 484-486 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] IN the last two decades, brain catecholamines, and in particular dopamine, have played a prominent part in hypotheses of the neurobiology of schizophrenia. Briefly, the dopamine hypothesis states that in the schizophrenic brain, some critical dopamine systems are in a state of continuous ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299484a0
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  • 60
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    Digitale Medien
    Deme histories are not species' histories (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 490-490 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] SAMPLING any fossiliferous outcrop on a centimetre-by-centimetre scale has the potential to provide detailed complete population histories over geologically short time spans (see, for example, refs 8,9). Such patterns of morphological history are, however, representative only of local populations, ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299490b0
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  • 61
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    Digitale Medien
    US national security leakages: Academics mostly absolved (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 479-479 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Washington US universities have not done significant harm to US national security by the leakage of technical information. This is the conclusion of a report* by a panel of the US National Academy of Sciences (NAS) released last week. While agreeing with the government that the leakage of ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299479a0
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  • 62
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    Digitale Medien
    Swedish science Medal: One way out (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 481-481 
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    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Stockholm Last week, Sweden's new prize for science, endowed by the late Holger Crafoord, inventor of the blood dialysis machine, and his wife Anna-Greta Crafoord, was presented for the first time. The prize was awarded jointly to two mathematicians, Professor Louis Nirenberg of the Courant ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299481a0
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  • 63
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    Digitale Medien
    Sequences on-line (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 482-482 
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    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] SIR - The recent letter from C. Saccone et al. (Nature 1 July, p.8) implies that nucleic acid databases are available for European research workers only by mailing of magnetic tapes. Your readers may be interested to know that an extensive nucleic acid sequence database, including the one released ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299482b0
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  • 64
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    Digitale Medien
    Bioagrimedigen (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 502-502 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Journal of Molecular and Applied Genetics. Editor H.M.Goodman. 6/yr. (Raven.) $80 US, $90 elsewhere (personal); $135 US, $145 elsewhere (institutional). THE Journal of Molecular and Applied Genetics (JMAG) is designed to find a place in the library of every ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299502a0
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  • 65
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    Digitale Medien
    Good food guide (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 502-502 
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    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Appetite. Chief editor D. Booth. 4/yr. (Academic.) £20.80, $54.50 (personal); £41.50, $109 (institutional). FIRST impressions of a new journal are like those of a new house: it's somehow incomplete, empty and echoing. The first issues of Appetite are certainly like that - ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299502b0
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  • 66
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    Digitale Medien
    Take the strain (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 504-504 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Journal of Neuroimmunology. Editors-in-chief C.S.Raine and P.O.Behan. 6/yr in 2 vols. (Elsevier Biomedical.) Dfl. 450, $180. THE new Journal of Neuroimmunology (JN) is trying to provide a meeting point for neuropathologists and those who use immunological methods as a tool to study the ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299504b0
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  • 67
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    Digitale Medien
    In need of brief analysis? (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 506-506 
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    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Behaviour Analysis Letters. Editors J.E.R.Staddon and C.M.Bradshaw. 6/yr. (Elsevier Biomedical.) Dfl. 205, $82. THE titles of journals commonly use a sort of code. "Letters" in Behaviour Analysis Letters (BAL) is not hard to crack. It means short papers (the editors stipulate 2,500 words ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299506a0
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  • 68
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    Digitale Medien
    Weather report: outlook fair (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 511-511 
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    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Journal of Climatology. Editor S.Gregory. 4/yr. (Wiley.) £48.50 UK, $97.50 elsewhere. ONLY a few decades ago climatology was seen as a purely descriptive part of meteorology, at best a rather poor second cousin to a true scientific subject. Today few would argue that climatology has ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299511a0
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  • 69
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    Digitale Medien
    Exploration of the primary visual cortex, 1955–78 (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 515-524 
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    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The following article is the lecture delivered by the author in Stockholm on 8 December 1981 when he received the Nobel Prize in Medicine or Physiology which he shared with Roger Sperry and Torsten Wiesel. The article is published here with permission from the Nobel Foundation and will also be ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299515a0
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  • 70
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    Digitale Medien
    100 years ago (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 400-400 
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    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] ELECTRIC NAVIGATION THE idea of propelling a boat through water by the motive power of electricity is no new one. The invention of the electromagnet showed the power of an electric current to produce a mechanical force. It was no very difficult matter, therefore, for the electricians of fifty ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299400a0
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  • 71
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    Digitale Medien
    Serotonin and cyclic AMP close single K + channels in Aplysia sensory neurones (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 413-417 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] We have identified a serotonin-sensitive K+ channel with novel properties. The channel is active at the resting potential; its gating is moderately affected by membrane potential and is not dependent on the activity of intracellular calcium ions. Application of serotonin to the ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299413a0
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  • 72
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    Digitale Medien
    Temporal variations in dissolved selenium in a coastal ecosystem (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 431-433 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Selenium is a unique example of a multiple oxidation state trace element in that the thermodynamically unfavourable species, Se(iv), persists throughout the water column in oceanic profiles4. This phenomenon may be a result of bioreduction of the dominant higher oxidation state, Se(vi), in surface ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299431a0
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  • 73
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    Digitale Medien
    Pseudocholinesterase staining in the primary visual pathway of the macaque monkey (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 439-442 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] In the brains of nine adult rhesus macaque monkeys, we studied the distributions of BuChE and AChE in serially adjoining sections through the lateral geniculate body and pulvinar nuclei of the thalamus and through the striate and peristriate cortex. We related these, in turn, to the distribution of ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299439a0
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  • 74
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    Digitale Medien
    Olivine transformed (1982)
    [s.l.] : Nature Publishing Group
    Nature 296 (1982), S. 705-705 
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    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] J.D. BERNAL (like W.L. Bragg) applied his knowledge of crystal structures to a broad range of topics and, as early as 1936, was able to suggest that the mineral olivine, (MgjFe^SiO^, would transform to the spinel structure at the high pressures found deep in the Earth's mantle. There is now much ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/296705a0
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  • 75
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    Digitale Medien
    Shear stress in fault zones (1982)
    [s.l.] : Nature Publishing Group
    Nature 296 (1982), S. 708-708 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] SINCE estimates of the shear stress acting on fault zones at major plate boundaries vary by at least an order of magnitude, such fundamental issues as the driving mechanism of plate tectonics and the energetics of crustal faulting remain entirely unresolved1. The shear stresses in the Earth's crust ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/296708a0
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  • 76
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    Digitale Medien
    Was the 1970 geomagnetic jerk of internal or external origin? (1982)
    [s.l.] : Nature Publishing Group
    Nature 296 (1982), S. 726-728 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The geomagnetic field has a rich spectrum of temporal changes from audio frequencies to thousands of years. In general, the short-term variations (with time scales of a year or less) are of external origin relative to the Earth's surface, though they have a smaller internal component due to ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/296726a0
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  • 77
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    Digitale Medien
    Genes for immunoglobulin heavy chains and for α 1 -antitrypsin are localized to specific regions of chromosome 14q (1982)
    [s.l.] : Nature Publishing Group
    Nature 297 (1982), S. 428-430 
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    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Fig. 1 Chromosomes observed with G-banding. The normal chromosome 14 and r(14) in pro-band of family 1 is shown with the deleted region marked by an arrow. The normal chromosome 14 and inv(14) in family 2 is shown with breakpoints indicated by brackets. The diagram (centre) shows the prometaphase ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/297428a0
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  • 78
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    Digitale Medien
    Isolation and structural organization of the human preproenkephalin gene (1982)
    [s.l.] : Nature Publishing Group
    Nature 297 (1982), S. 431-434 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] A human genomic DNA library10, kindly provided by Dr T. Maniatis, was screened for phage carrying preproenkephalin gene sequences by hybridization in situ11 at 60 C with the bovine cDNA probe1. The DNA inserts carried by the isolated hybridization-positive phage clones were subjected to restriction ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/297431a0
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  • 79
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    Digitale Medien
    All-or-none response of the Ca 2+ -dependent K + channel in inside-out vesicles (1982)
    [s.l.] : Nature Publishing Group
    Nature 296 (1982), S. 744-746 
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    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] 86Rb fluxes were measured at room temperature and in equilibrium exchange conditions. In vesicles loaded with 86Rb during the vesiculation step, the addition of Ca2+ to the medium elicited a rapid release of 86Rb, the efflux rate constant returning close to control values (without Ca2+) after 10-20 ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/296744a0
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  • 80
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    Digitale Medien
    Pleistocene and Holocene climates in Africa (reply) (1982)
    [s.l.] : Nature Publishing Group
    Nature 296 (1982), S. 779-780 
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    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] TETZLAFF, SARNTHEIN AND WOLTER REPLY-The comments of Nicholson give us the opportunity to clarify possible misunderstandings of our concepts and conclusions on the underlying causes of climatic change in North Africa1. Nicholson particularly questions our evidence of 'stable' latitudinal positions ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/296779b0
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  • 81
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    Digitale Medien
    All around andesites, and beyond (1982)
    [s.l.] : Nature Publishing Group
    Nature 297 (1982), S. 439-439 
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    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] A THOROUGH, up-to-date review of orogenic andesites has long been needed and is especially welcome at this time, when many petrologists are taking stock of this, group of rocks and their interpretation in terms of accepted concepts of plate tectonics. In undertaking this formidable task, James Gill ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/297439a0
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  • 82
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    Digitale Medien
    How ionizing radiation affects cells (1982)
    [s.l.] : Nature Publishing Group
    Nature 297 (1982), S. 440-440 
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    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] SOME of the best epidemiological data relating carcinogenic risks to environmental hazards comes from research into the consequences of exposure to ionizing radiation. The recent recalculation of dosimetry at Hiroshima and Nagasaki has just about eliminated any effects in these populations ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/297440a0
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  • 83
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    Digitale Medien
    News of conception, pure and applied (1982)
    [s.l.] : Nature Publishing Group
    Nature 296 (1982), S. 785-785 
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    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE recent upsurge of attention paid in the public media to the growing number of normal childbirths following the fertilization of human eggs in vitro, and the culture and reinsertion of the resulting embryos into their "mothers", must serve as welcome publicity for these two books, both of which ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/296785a0
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  • 84
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    Digitale Medien
    The principles of vision enumerated (1982)
    [s.l.] : Nature Publishing Group
    Nature 297 (1982), S. 441-441 
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    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE stated aim of Uttal's book is to "... systematize the data base of perceptual psychology into a comprehensive intellectual scheme ...". When the route to this goal runs through 1,100 pages and over 3,000 references, it must involve to a fair degree the exposition of the "data base" itself, and ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/297441a0
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  • 85
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    Digitale Medien
    [Book Reviews ‘picture story’] (1982)
    [s.l.] : Nature Publishing Group
    Nature 297 (1982), S. 441-441 
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    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The art of M.C. Escher: this picture, Mobius Strip II (Red Ants), is reproduced from Escher, edited by J.L. Locher and recently published by Thames & Hudson, London, and Abrams, New York. The book, containing both a copiously illustrated catalogue of Escher's graphic work and a biography, costs ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/297441b0
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  • 86
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    Digitale Medien
    Inner machinery of the silicon chip (1982)
    [s.l.] : Nature Publishing Group
    Nature 297 (1982), S. 442-442 
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    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] MOST silicon integrated circuits are smaller in size than a fingernail and contain many thousands of working elements, the most common of which is the metal-oxide-semi-conductor (MOS) transistor. In this, all of the important electronic activity takes place in a minute volume, a layered structure ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/297442a0
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  • 87
    Digitale Medien
    Digitale Medien
    Statistical expertise on the shelf (1982)
    [s.l.] : Nature Publishing Group
    Nature 297 (1982), S. 442-442 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] FOR some years now, Sokal and Rohlfs Biometry has enjoyed considerable success as a statistics text for biologists. Knowing this, my first impressions of the second edition were less favourable than I had expected. While the opening chapters are written in an attractive enough style and deal with ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/297442b0
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  • 88
    Digitale Medien
    Digitale Medien
    Western diets and faecal nitrosamines (1982)
    [s.l.] : Nature Publishing Group
    Nature 296 (1982), S. 780-780 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE paper by Suzuki and Mitsuoka1, while apparently demonstrating clear differences in nitrosamine production in individuals on different diets, makes unwarranted claims for the significance of these findings. Japan has a low incidence rate of large bowel cancer compared with the United States2 or ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/296780a0
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  • 89
    Digitale Medien
    Digitale Medien
    Science parks: Easy answer? (1982)
    [s.l.] : Nature Publishing Group
    Nature 296 (1982), S. 597-597 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] With cuts in government support hitting UK universities hard, the scramble to set up science parks is on - 15 were launched last year. Few university schemes are actually in operation, and newcomers must look to Trinity College, Cambridge, the first British academic institution to open a science ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/296597c0
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  • 90
    Digitale Medien
    Digitale Medien
    US cancer trends (1982)
    [s.l.] : Nature Publishing Group
    Nature 296 (1982), S. 598-598 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] SIR - Your article on the US Surgeon General's report The Health Consequences of Smoking: Cancer 1982 (Nature 4 March, p.4) again draws attention to the importance of smoking as a cause of cancer. The "remarkable increases in mortality from smoking-related cancers", a widely recognized phenomenon, ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/296598a0
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  • 91
    Digitale Medien
    Digitale Medien
    UK plutonium worries US Senate (1982)
    [s.l.] : Nature Publishing Group
    Nature 297 (1982), S. 255-255 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Washington US senators may soon start investigating the fate of as much as four tons of fuel-grade plutonium that the United Kingdom supplied to the United States over several years on the understanding that it would be used only for civilian purposes, but which may have been put into nuclear ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/297255a0
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  • 92
    Digitale Medien
    Digitale Medien
    Methylation and gene control (1982)
    [s.l.] : Nature Publishing Group
    Nature 296 (1982), S. 602-603 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] ARE changes in DNA methylation patterns a cause or an effect of eukaryotic gene expression? There are already many examples of an inverse correlation between the level of methylation in the neighbourhood of a gene and the transcriptional activity of that gene. It is more difficult to prove that the ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/296602a0
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  • 93
    Digitale Medien
    Digitale Medien
    Oak Ridge up for grabs (1982)
    [s.l.] : Nature Publishing Group
    Nature 297 (1982), S. 255-255 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Washington On 3 May, the Union Carbide Corporation, which has run government atomic facilities at Oak Ridge, Tennessee, since the Second World War, announced that it no longer wants to do so. Union Carbide is not seeking to renew its option to manage Oak Ridge when the present contract expires on ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/297255b0
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  • 94
    Digitale Medien
    Digitale Medien
    Questions concerning speciation (1982)
    [s.l.] : Nature Publishing Group
    Nature 296 (1982), S. 609-609 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE pattern of evolution in the mollusc lineages reported by Williamson seems to be in excellent agreement with the theory of punctuated equilibria, which is based on the well-known paleontological observation that new species usually enter the fossil record abruptly (in geological time) and ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/296609a0
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  • 95
    Digitale Medien
    Digitale Medien
    Are ‘punctuations’ artefacts of time-scales? (1982)
    [s.l.] : Nature Publishing Group
    Nature 296 (1982), S. 610-611 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] WE would like to give a brief explanation of why the 'punctuated' pattern of evolutionary change seen in Williamson's and other, less well documented, findings may well be an artefact of the sampling time scales. A more detailed argument is presented elsewhere1. Consider the following imaginary ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/296610b0
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  • 96
    Digitale Medien
    Digitale Medien
    British Aerospace: Looking good (1982)
    [s.l.] : Nature Publishing Group
    Nature 296 (1982), S. 595-595 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] A new mood of optimism prevails at the space and communications division of British Aerospace. Not surprisingly, the company is delighted at last month's news that the Hughes Aircraft company is to build up to 16 Intelsat-VI telecommunications satellites: as principal subcontractor British ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/296595a0
    Standort Signatur Erwartet Verfügbarkeit
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  • 97
    Digitale Medien
    Digitale Medien
    Enzymatic replication of E. coli chromosomal origin is bidirectional (1982)
    [s.l.] : Nature Publishing Group
    Nature 296 (1982), S. 623-627 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] A soluble enzyme system has been discovered which specifically recognizes and replicates plasmids containing the Escherichia coli chromosomal origin, oriC. Electron microscopy has shown that plasmid replication begins at or near oriC from which it progresses bidirectionally to completion. Control ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/296623a0
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  • 98
    Digitale Medien
    Digitale Medien
    Ecophenotypic or genotypic? (1982)
    [s.l.] : Nature Publishing Group
    Nature 296 (1982), S. 609-610 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] WILLIAMSON 's brief comment (p. 441) that the presumably derivative morphologies, all arrayed in two, well-dated, very discrete horizons and one more diffuse horizon, cannot be considered to be ecophenotypic morphologies of the unchanging, long-ranging forms - many of which persist to the present - ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/296609b0
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  • 99
    Digitale Medien
    Digitale Medien
    British universities: More misery (1982)
    [s.l.] : Nature Publishing Group
    Nature 297 (1982), S. 258-259 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Hopes that the British university system would be spared some of the government's economy measures were dashed last week, when the University Grants Committee made public the recurrent grants to individual universities for the academic year 1982-83. There is no substantial change from the ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/297258c0
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  • 100
    Digitale Medien
    Digitale Medien
    T cells immortalized? (1982)
    [s.l.] : Nature Publishing Group
    Nature 296 (1982), S. 605-606 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] SUCCESSFULLY fuse an antibody-producing B cell with a myeloma cell and there is a good chance that the resulting hybridoma will provide a continuous supply of monoclonal antibodies. Can similar techniques be applied to T cells, the other major population of lymphocytes within the immune system, ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/296605a0
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