Institution
University of California, Davis
Education•Davis, California, United States•
About: University of California, Davis is a education organization based out in Davis, California, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 78770 authors who have published 180033 publications receiving 8064158 citations. The organization is also known as: UC Davis & UCD.
Topics: Population, Poison control, Gene, Galaxy, Genome
Papers published on a yearly basis
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Lincoln Park Zoo1, University of Maryland, College Park2, University of California, Davis3, University of Vermont4, Rutgers University5, Swedish University of Agricultural Sciences6, Lüneburg University7, University of Queensland8, University of Pretoria9, Commonwealth Scientific and Industrial Research Organisation10, Cornell University11, University of Göttingen12, Simon Fraser University13, University of Wisconsin-Madison14, National Scientific and Technical Research Council15, University of Würzburg16, Michigan State University17, University of Texas at Austin18, Hebrew University of Jerusalem19, University of Reading20, Lund University21, Federal University of Bahia22, University of California, Berkeley23
TL;DR: This synthesis reveals that pollinator persistence will depend on both the maintenance of high-quality habitats around farms and on local management practices that may offset impacts of intensive monoculture agriculture.
Abstract: Bees provide essential pollination services that are potentially affected both by local farm management and the surrounding landscape. To better understand these different factors, we modelled the relative effects of landscape composition (nesting and floral resources within foraging distances), landscape configuration (patch shape, interpatch connectivity and habitat aggregation) and farm management (organic vs. conventional and local-scale field diversity), and their interactions, on wild bee abundance and richness for 39 crop systems globally. Bee abundance and richness were higher in diversified and organic fields and in landscapes comprising more high-quality habitats; bee richness on conventional fields with low diversity benefited most from high-quality surrounding land cover. Landscape configuration effects were weak. Bee responses varied slightly by biome. Our synthesis reveals that pollinator persistence will depend on both the maintenance of high-quality habitats around farms and on local management practices that may offset impacts of intensive monoculture agriculture.
904 citations
Institute of Ecosystem Studies1, University of California, Davis2, United States Forest Service3, Arizona State University4, Ohio State University5, Chesapeake Biological Laboratory6, The New School7, University of Missouri8, Johns Hopkins University9, University of Vermont10, University of Massachusetts Amherst11
TL;DR: The state factor approach is used to highlight the role of important aspects of climate, substrate, organisms, relief, and time in differentiating urban from non-urban areas, and for determining heterogeneity within spatially extensive metropolitan areas.
903 citations
TL;DR: In this paper, the role of context in stimulating entrepreneurial innovation and its impact on the outcomes of entrepreneurial innovation is examined, as well as its role in stimulating such activity, and the relationship between contexts and entrepreneurial innovation.
901 citations
University of California, Davis1, Lawrence Livermore National Laboratory2, Space Telescope Science Institute3, Princeton University4, Fermilab5, New Mexico State University6, University of Pittsburgh7, Eötvös Loránd University8, Johns Hopkins University9, University of Tokyo10, University of Chicago11, University of Michigan12, United States Department of the Navy13, Carnegie Mellon University14, Pennsylvania State University15
TL;DR: In this paper, the authors present moderate-resolution Keck spectroscopy of quasars at z = 5.82, 5.99, and 6.28, discovered by the Sloan Digital Sky Survey (SDSS).
Abstract: We present moderate-resolution Keck spectroscopy of quasars at z = 5.82, 5.99, and 6.28, discovered by the Sloan Digital Sky Survey (SDSS). We find that the Ly? absorption in the spectra of these quasars evolves strongly with redshift. To z ~ 5.7, the Ly? absorption evolves as expected from an extrapolation from lower redshifts. However, in the highest-redshift object, SDSSp J103027.10+052455.0 (z = 6.28), the average transmitted flux is 0.0038 ? 0.0026 times that of the continuum level over 8450 ? 20, on the optical depth to Ly? absorption at z = 6. This is a clear detection of a complete Gunn-Peterson trough, caused by neutral hydrogen in the intergalactic medium. Even a small neutral hydrogen fraction in the intergalactic medium would result in an undetectable flux in the Ly? forest region. Therefore, the existence of the Gunn-Peterson trough by itself does not indicate that the quasar is observed prior to the reionization epoch. However, the fast evolution of the mean absorption in these high-redshift quasars suggests that the mean ionizing background along the line of sight to this quasar has declined significantly from z ~ 5 to 6, and the universe is approaching the reionization epoch at z ~ 6.
900 citations
900 citations
Authors
Showing all 79538 results
| Name | H-index | Papers | Citations |
|---|---|---|---|
| Eric S. Lander | 301 | 826 | 525976 |
| Ronald C. Kessler | 274 | 1332 | 328983 |
| George M. Whitesides | 240 | 1739 | 269833 |
| Ronald M. Evans | 199 | 708 | 166722 |
| Virginia M.-Y. Lee | 194 | 993 | 148820 |
| Scott M. Grundy | 187 | 841 | 231821 |
| Julie E. Buring | 186 | 950 | 132967 |
| Patrick O. Brown | 183 | 755 | 200985 |
| Anil K. Jain | 183 | 1016 | 192151 |
| John C. Morris | 183 | 1441 | 168413 |
| Douglas R. Green | 182 | 661 | 145944 |
| John R. Yates | 177 | 1036 | 129029 |
| Barry Halliwell | 173 | 662 | 159518 |
| Roderick T. Bronson | 169 | 679 | 107702 |
| Hongfang Liu | 166 | 2356 | 156290 |