Institution
University of Georgia
Education•Athens, Georgia, United States•
About: University of Georgia is a education organization based out in Athens, Georgia, United States. It is known for research contribution in the topics: Population & Gene. The organization has 41934 authors who have published 93622 publications receiving 3713212 citations. The organization is also known as: UGA & Franklin College.
Topics: Population, Gene, Poison control, Context (language use), Genome
Papers published on a yearly basis
Papers
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TL;DR: Acidocalcisomes were first described in trypanosomatids and have been characterized in most detail in these species, and are linked with several functions, including storage of cations and phosphorus, polyphosphate metabolism, calciumHomeostasis, maintenance of intracellular pH homeostasis and osmoregulation.
Abstract: Recent work has shown that acidocalcisomes, which are electron-dense acidic organelles rich in calcium and polyphosphate, are the only organelles that have been conserved during evolution from prokaryotes to eukaryotes Acidocalcisomes were first described in trypanosomatids and have been characterized in most detail in these species Acidocalcisomes have been linked with several functions, including storage of cations and phosphorus, polyphosphate metabolism, calcium homeostasis, maintenance of intracellular pH homeostasis and osmoregulation Here, we review acidocalcisome ultrastructure, composition and function in different trypanosomatids and other organisms
424 citations
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TL;DR: In this article, the causal relationship between job satisfaction and organizational commitment was investigated using a combination of pseudo-generalized least squares, and full information maximum likelihood estimation procedures, and the results supported the commitment-causes-satisfaction model.
424 citations
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Pacific Northwest National Laboratory1, Virginia Tech2, Montana State University3, Colorado School of Mines4, Virginia–Maryland Regional College of Veterinary Medicine5, University of Delaware6, Kyushu University7, University of Akron8, University of Georgia9, Arizona State University10, East China Normal University11
TL;DR: The sources and impacts of natural nanomaterials, which are not created directly through human actions; incidental nanom material, which form unintentionally during human activities; and engineered nanomMaterials,Which are created for specific applications are reviewed.
Abstract: BACKGROUND Natural nanomaterials have always been abundant during Earth’s formation and throughout its evolution over the past 4.54 billion years. Incidental nanomaterials, which arise as a by-product from human activity, have become unintentionally abundant since the beginning of the Industrial Revolution. Nanomaterials can also be engineered to have unusual, tunable properties that can be used to improve products in applications from human health to electronics, and in energy, water, and food production. Engineered nanomaterials are very much a recent phenomenon, not yet a century old, and are just a small mass fraction of the natural and incidental varieties. As with natural and incidental nanomaterials, engineered nanomaterials can have both positive and negative consequences in our environment. Despite the ubiquity of nanomaterials on Earth, only in the past 20 years or so have their impacts on the Earth system been studied intensively. This is mostly due to a much better understanding of the distinct behavior of materials at the nanoscale and to multiple advances in analytic techniques. This progress continues to expand rapidly as it becomes clear that nanomaterials are relevant from molecular to planetary dimensions and that they operate from the shortest to the longest time scales over the entire Earth system. ADVANCES Nanomaterials can be defined as any organic, inorganic, or organometallic material that present chemical, physical, and/or electrical properties that change as a function of the size and shape of the material. This behavior is most often observed in the size range between 1 nm up to a few to several tens of nanometers in at least one dimension. These materials have very high proportions of surface atoms relative to interior ones. Also, they are often subject to property variation as a function of size owing to quantum confinement effects. Nanomaterial growth, dissolution or evaporation, surface reactivity, and aggregation states play key roles in their lifetime, behaviors, and local interactions in both natural and engineered environments, often with global consequences. It is now possible to recognize and identify critical roles played by nanomaterials in vital Earth system components, including direct human impact. For example, nanomaterial surfaces may have been responsible for promoting the self-assembly of protocells in the origin of life and in the early evolution of bacterial cell walls. Also, weathering reactions on the continents produce various bioavailable iron (oxy)hydroxide natural and incidental nanomaterials, which are transported to the oceans via riverine and atmospheric pathways and which influence ocean surface primary productivity and thus the global carbon cycle. A third example involves nanomaterials in the atmosphere that travel locally, regionally, and globally. When inhaled, the smallest nanoparticles can pass through the alveolar membranes of the lungs and directly enter the bloodstream. From there, they enter vital organs, including the brain, with possible deleterious consequences. OUTLOOK Earth system nanoscience requires a convergent approach that combines physical, biological, and social sciences, as well as engineering and economic disciplines. This convergence will drive developments for all types of intelligent and anticipatory conceptual models assisted by new analytical techniques and computational simulations. Ultimately, scientists must learn how to recognize key roles of natural, incidental, and engineered nanomaterials in the complex Earth system, so that this understanding can be included in models of Earth processes and Earth history, as well as in ethical considerations regarding their positive and negative effects on present and predicted future environmental and human health issues.
424 citations
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TL;DR: A glyphosate-resistant Palmer amaranth biotype was confirmed in central Georgia and I50 values for visual control and shoot fresh weight were 8 and 6.2 times greater, respectively, with the resistant biotype compared with a known glyphosate-susceptible biotype.
Abstract: A glyphosate-resistant Palmer amaranth biotype was confirmed in central Georgia. In the field, glyphosate applied to 5- to 13-cm-tall Palmer amaranth at three times the normal use rate of 0.84 kg ae ha−1 controlled this biotype only 17%. The biotype was controlled 82% by glyphosate at 12 times the normal use rate. In the greenhouse, I50 values (rate necessary for 50% inhibition) for visual control and shoot fresh weight, expressed as percentage of the nontreated, were 8 and 6.2 times greater, respectively, with the resistant biotype compared with a known glyphosate-susceptible biotype. Glyphosate absorption and translocation and the number of chromosomes did not differ between biotypes. Shikimate was detected in leaf tissue of the susceptible biotype treated with glyphosate but not in the resistant biotype. Nomenclature: Glyphosate; Palmer amaranth, Amaranthus palmeri S. Wats; AMAPA.
424 citations
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TL;DR: In this paper, the authors examined the relationship of the entrepreneur's personality to long-term venture survival and found that conscientiousness was positively related to longterm venture survivability, while extraversion, emotional stability, agreeableness, conscientiousness, and openness to experience were negatively associated with the likelihood of survival.
423 citations
Authors
Showing all 42268 results
Name | H-index | Papers | Citations |
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Rob Knight | 201 | 1061 | 253207 |
Feng Zhang | 172 | 1278 | 181865 |
Zhenan Bao | 169 | 865 | 106571 |
Carl W. Cotman | 165 | 809 | 105323 |
Yoshio Bando | 147 | 1234 | 80883 |
Mark Raymond Adams | 147 | 1187 | 135038 |
Han Zhang | 130 | 970 | 58863 |
Dmitri Golberg | 129 | 1024 | 61788 |
Godfrey D. Pearlson | 128 | 740 | 58845 |
Douglas E. Soltis | 127 | 612 | 67161 |
Richard A. Dixon | 126 | 603 | 71424 |
Ajit Varki | 124 | 542 | 58772 |
Keith A. Johnson | 120 | 798 | 51034 |
Gustavo E. Scuseria | 120 | 658 | 95195 |
Julian I. Schroeder | 120 | 315 | 50323 |