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  • 1
    Monograph available for loan
    Monograph available for loan
    Soil science simplified (1988)
    Iowa : Iowa State Press
    Details Availability
    Call number: PIK W 111-92-0767
    Type of Medium: Monograph available for loan
    Pages: 196 S.
    Edition: 2. Aufl.
    ISBN: 0813815142
    Branch Library: PIK Library
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  • 2
    Series available for loan
    Series available for loan
    Strain rate effect on the strength of frozen silt (1975)
    Hanover, N.H. : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Details Availability
    Call number: ZSP-202-350
    In: Research report / Cold Regions Research and Engineering Laboratory, 350
    Type of Medium: Series available for loan
    Pages: iv, 27 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory 350
    URL: https://usace.contentdm.oclc.org/digital/collection/p266001coll1/id/6211
    Language: English
    Note: CONTENTS: Abstract. - Preface. - Introduction. - Sample preparation. - Apparatus and testing procedure. - Test results. - Uniaxial strength. - Initial tangent and 50% strength moduli. - Specific energy. - Discussion. - Testing method. - Compressive strength. - Tensile strength. - Ductile and brittle fracture.. - Initial tangent and 50% stress moduli. - Specific energy. - Conclusions and recommendations. - References. - Appendix A: Description of soil and calculations. - Appendix B: Description of the LVDT and averaging circuits. - Appendix C: Determination of strain in the neck section of a dumbbell specimen.
    Location: AWI Archive
    Branch Library: AWI Library
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  • 3
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    Neoarchean (c. 2{middle dot}7 Ga) Plutons of the Ungava Craton, Quebec, Canada: Parental Magma Compositions and Implications for Fe-rich Mantle Source Regions (2014)
    Oxford University Press
    Details
    Publication Date: 2014-12-14
    Description: Mafic to ultramafic intrusions of the Qullinaaraaluk suite (Q-suite) were emplaced into the Ungava craton of the Northeastern Superior Province during an episode of intense igneous activity and crustal reworking from c. 2·74 to 2·70 Ga. Orthopyroxene-rich Q-suite intrusions from the Hudson Bay Terrane and southwestern Rivière Arnaud Terrane, and orthopyroxene-poor Q-suite intrusions from the north–central Rivière Arnaud Terrane indicate the existence of at least two Q-suite magma types: a subalkaline magma parental to the orthopyroxene-rich intrusions and a transitional magma parental to the orthopyroxene-poor intrusions. Both types of intrusions are characterized by light rare earth element (LREE)-enriched, high field strength element (HFSE)-depleted trace element profiles that reflect, in large part, contamination by the tonalite–trondhjemite–granodiorite-dominated crust. Near-chondritic to strongly sub-chondritic initial Nd (2·72 Ga) values (+2 to –10) of the Q-suite intrusions reflect the combined effects of both the amount of crustal contamination and the age-dependent isotopic composition of the contaminant. The inferred trace element profiles of the uncontaminated Q-suite magmas were probably flat to LREE-depleted. The transitional magmas that produced the least evolved dunitic cumulates of the Q-suite were ferropicrites (MgO ~14 wt %, FeO TOT ~17 wt %). In contrast, the magmas parental to the primitive Q-suite harzburgites were Fe-rich, high-Mg basalts (MgO ~11 wt %; FeO ~14 wt %). The high Fe contents of the Q-suite magmas are incompatible with derivation from a pyrolitic mantle [Mg-number ~0·90, Mg/(Mg + Fe TOT )] and require sources significantly enriched in iron (Mg-number ≤0·79). Both magma types are also characterized by relatively low Ni contents suggesting derivation from source regions depleted in Ni relative to pyrolitic mantle peridotite. Differences in the major element compositions of the subalkaline and transitional parental magmas may reflect compositional diversity among the Fe-rich mantle sources. Comparisons with melting experiments on compositions analogous to the Martian mantle suggest that the Q-suite magmas may rather be generated by different degrees of melting of a common source with an Fe content slightly lower than that of the Homestead L5 ordinary chondrite (Mg-number = 0·77). The Fe-rich picritic to high-Mg basaltic magmas last equilibrated with garnet-free harzburgitic to lherzolitic residues at upper mantle pressures (≤5 GPa). The craton-wide occurrence of c. 2·72–2·70 Ga Q-suite mafic to ultramafic plutons suggests that underplating by Fe-rich mantle melts may have had a key role in the c. 2·74–2·70 Ga cratonization of the Northeastern Superior Province.
    Print ISSN: 0022-3530
    Electronic ISSN: 1460-2415
    Topics: Geosciences
    Published by Oxford University Press
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  • 4
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    Near-ultraviolet micro-Raman study of diamond grown on GaN (2016)
    American Institute of Physics (AIP)
    Details
    Publication Date: 2016-01-20
    Description: Ultraviolet (UV) micro-Raman measurements are reported of diamond grown on GaN using chemical vapor deposition. UV excitation permits simultaneous investigation of the diamond (D) and disordered carbon (DC) comprising the polycrystalline layer. From line scans of a cross-section along the diamond growth direction, the DC component of the diamond layer is found to be highest near the GaN-on-diamond interface and diminish with characteristic length scale of ∼3.5  μ m. Transmission electron microscopy (TEM) of the diamond near the interface confirms the presence of DC. Combined micro-Raman and TEM are used to develop an optical method for estimating the DC volume fraction.
    Print ISSN: 0003-6951
    Electronic ISSN: 1077-3118
    Topics: Physics
    Published by American Institute of Physics (AIP)
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  • 5
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    Methylome sequencing in triple-negative breast cancer reveals distinct methylation clusters with prognostic value (2015)
    Springer Nature
    Details
    Publication Date: 2015-02-04
    Description: Article Triple-negative breast cancers (TNBCs) are a heterogeneous group of cancers with varying prognoses. Here, the authors carry out whole-genome methylation capture sequencing from TNBC samples and matched normal samples, and identify differentially methylated regions that define a potentially novel TNBC signature. Nature Communications doi: 10.1038/ncomms6899 Authors: Clare Stirzaker, Elena Zotenko, Jenny Z. Song, Wenjia Qu, Shalima S. Nair, Warwick J. Locke, Andrew Stone, Nicola J. Armstong, Mark D. Robinson, Alexander Dobrovic, Kelly A. Avery-Kiejda, Kate M. Peters, Juliet D. French, Sandra Stein, Darren J. Korbie, Matt Trau, John F. Forbes, Rodney J. Scott, Melissa A. Brown, Glenn D. Francis, Susan J. Clark
    Electronic ISSN: 2041-1723
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General , Physics
    Published by Springer Nature
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  • 6
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    Vocal traits and diet explain avian sensitivities to anthropogenic noise (2015)
    Wiley
    Details
    Publication Date: 2015-02-17
    Description: Global population growth has caused extensive human-induced environmental change, including a near-ubiquitous transformation of the acoustical environment due to the propagation of anthropogenic noise. Because the acoustical environment is a critical ecological dimension for countless species to obtain, interpret and respond to environmental cues, highly novel environmental acoustics have the potential to negatively impact organisms that use acoustics for a variety of functions, such as communication and predator/prey detection. Using a comparative approach with 308 populations of 183 bird species from 14 locations in Europe, North American and the Caribbean, I sought to reveal the intrinsic and extrinsic factors responsible for avian sensitivities to anthropogenic noise as measured by their habitat use in noisy versus adjacent quiet locations. Birds across all locations tended to avoid noisy areas, but trait-specific differences emerged. Vocal frequency, diet and foraging location predicted patterns of habitat use in response to anthropogenic noise, but body size, nest placement and type, other vocal features and the type of anthropogenic noise (chronic industrial vs. intermittent urban/traffic noise) failed to explain variation in habitat use. Strongly supported models also indicated the relationship between sensitivity to noise and predictive traits had little to no phylogenetic structure. In general, traits associated with hearing were strong predictors – species with low-frequency vocalizations, which experience greater spectral overlap with low-frequency anthropogenic noise tend to avoid noisy areas, whereas species with higher frequency vocalizations respond less severely. Additionally, omnivorous species and those with animal-based diets were more sensitive to noise than birds with plant-based diets, likely because noise may interfere with the use of audition in multimodal prey detection. Collectively, these results suggest that anthropogenic noise is a powerful sensory pollutant that can filter avian communities nonrandomly by interfering with birds' abilities to receive, respond to and dispatch acoustic cues and signals.
    Print ISSN: 1354-1013
    Electronic ISSN: 1365-2486
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering , Geography
    Published by Wiley
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  • 7
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    Climate change as an unexpected co-factor promoting coral eating seastar (Acanthaster planci) outbreaks (2015)
    Springer Nature
    Details
    Publication Date: 2015-02-13
    Description: Coral reefs face a crisis due to local and global anthropogenic stressors. A large proportion of the ~50% coral loss on the Great Barrier Reef has been attributed to outbreaks of the crown-of-thorns-seastar (COTS). A widely assumed cause of primary COTS outbreaks is increased larval survivorship due to higher food availability, linked with anthropogenic runoff . Our experiment using a range of algal food concentrations at three temperatures representing present day average and predicted future increases, demonstrated a strong influence of food concentration on development is modulated by temperature. A 2°C increase in temperature led to a 4.2–4.9 times (at Day 10) or 1.2–1.8 times (Day 17) increase in late development larvae. A model indicated that food was the main driver, but that temperature was an important modulator of development. For instance, at 5000 cells ml−1 food, a 2°C increase may shorten developmental time by 30% and may increase the probability of survival by 240%. The main contribution of temperature is to ‘push’ well-fed larvae faster to settlement. We conclude that warmer sea temperature is an important co-factor promoting COTS outbreaks. Scientific Reports 5 doi: 10.1038/srep08402
    Electronic ISSN: 2045-2322
    Topics: Natural Sciences in General
    Published by Springer Nature
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  • 8
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    Greenland GPS network [Earth, Atmospheric, and Planetary Sciences] (2012)
    National Academy of Sciences
    Details
    Publication Date: 2012-07-25
    Description: The Greenland GPS Network (GNET) uses the Global Positioning System (GPS) to measure the displacement of bedrock exposed near the margins of the Greenland ice sheet. The entire network is uplifting in response to past and present-day changes in ice mass. Crustal displacement is largely accounted for by an annual oscillation superimposed on a sustained trend. The oscillation is driven by earth’s elastic response to seasonal variations in ice mass and air mass (i.e., atmospheric pressure). Observed vertical velocities are higher and often much higher than predicted rates of postglacial rebound (PGR), implying that uplift is usually dominated by the solid earth’s instantaneous elastic response to contemporary losses in ice mass rather than PGR. Superimposed on longer-term trends, an anomalous ‘pulse’ of uplift accumulated at many GNET stations during an approximate six-month period in 2010. This anomalous uplift is spatially correlated with the 2010 melting day anomaly.
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
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  • 9
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    The role of the Intertropical Discontinuity region and the heat‐low in dust emission and transport over the Thar desert ‐ India: A pre‐monsoon case study (2019)
    Wiley
    Details
    Publication Date: 2019
    Description: Abstract A severe dust storm occurred over north India during 12‐16 June 2018 is analysed using satellite observations, reanalysis, ground‐based measurements and model (Meso‐NH) simulations focusing on the dynamic processes that caused the dust‐storm generation, uplift and propagation as well as its impacts on air quality. The initial dust emission was triggered by strong near‐surface southwesterlies (~15‐20 m s‐1) associated with the monsoon flow advancing northward, in response to the deepening of the thermal low over the Thar Desert. The convergence between the northwesterlies and the monsoon flow along the Inter‐Tropical Discontinuity region caused high dust accumulation over northwest India in an area of weak winds. Convective mixing during daytime favours the vertical transport of dust to higher altitudes above the monsoon flow, but the towering Himalayas and the associated return northerly flow aloft, play a blocking role leading to dust accumulation at heights between 1 and 3 km over northwest India. The prevailed northwesterlies in the middle troposphere favour the eastward transport of the dust plumes along the Ganges valley, helping to evacuate the dust toward east India. Based on Meso‐NH model simulations, the dust storm was associated with dust loads higher than 30 gm‐2 and AODs higher than 3, in agreement with MODIS observations. The impact of the dust storm on the spatial‐temporal evolution of the PM10 and PM2.5 mass concentrations is studied using data from 23 air‐quality stations over northern India, indicating daily PM10 peaks reaching at ~900 μg m‐3, implying a severe degradation of air quality.
    Print ISSN: 2169-897X
    Electronic ISSN: 2169-8996
    Topics: Geosciences , Physics
    Published by Wiley on behalf of American Geophysical Union (AGU).
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  • 10
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    Nongenomic transmission across generations of maternal behavior and stress responses in the rat (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-11-05
    Description: In the rat, variations in maternal care appear to influence the development of behavioral and endocrine responses to stress in the offspring. The results of cross-fostering studies reported here provide evidence for (i) a causal relationship between maternal behavior and stress reactivity in the offspring and (ii) the transmission of such individual differences in maternal behavior from one generation of females to the next. Moreover, an environmental manipulation imposed during early development that alters maternal behavior can then affect the pattern of transmission in subsequent generations. Taken together, these findings indicate that variations in maternal care can serve as the basis for a nongenomic behavioral transmission of individual differences in stress reactivity across generations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Francis, D -- Diorio, J -- Liu, D -- Meaney, M J -- New York, N.Y. -- Science. 1999 Nov 5;286(5442):1155-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Developmental Neuroendocrinology Laboratory, Douglas Hospital Research Centre, Department of Psychiatry, McGill University, Montreal, H4H 1R3, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10550053" target="_blank"〉PubMed〈/a〉
    Keywords: Amygdala/metabolism ; Animals ; Brain/*metabolism ; Corticotropin-Releasing Hormone/*genetics/metabolism ; Female ; Gene Expression ; Handling (Psychology) ; Hippocampus/metabolism ; Male ; *Maternal Behavior ; Paraventricular Hypothalamic Nucleus/metabolism ; Rats ; Receptors, GABA-A/*genetics/metabolism ; Receptors, Glucocorticoid/*genetics/metabolism ; Stress, Physiological/genetics/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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