Institution
State University of New York at Oneonta
Education•Oneonta, New York, United States•
About: State University of New York at Oneonta is a education organization based out in Oneonta, New York, United States. It is known for research contribution in the topics: Population & Higher education. The organization has 455 authors who have published 883 publications receiving 18724 citations. The organization is also known as: SUNY Oneonta & SUNY at Oneonta.
Topics: Population, Higher education, Politics, The Internet, Service (business)
Papers published on a yearly basis
Papers
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TL;DR: The time required to reach the maximum rate is nearly independent of kinetics and varies directly with flow distance and temperature and inversely with initial fracture width, discharge, gradient, and PCO2 as mentioned in this paper.
Abstract: Limestone caves form along ground-water paths of greatest discharge and solutional aggressiveness. Flow routes that acquire increasing discharge accelerate in growth, while others languish with negligible growth. As discharge increases, a maximum rate of wall retreat is approached, typically about 0.01-0.1 cm/yr, determined by chemical kinetics but nearly unaffected by further increase in discharge. The time required to reach the maximum rate is nearly independent of kinetics and varies directly with flow distance and temperature and inversely with initial fracture width, discharge, gradient, and PCO2. Most caves require 104 - 105 yr to reach traversable size. Their patterns depend on the mode of ground-water recharge. Sinkhole recharge forms branching caves with tributaries that join downstream as higher-order passages. Maze caves form where (1) steep gradients and great undersaturation allow many alternate paths to enlarge at similar rates or (2) discharge or renewal of undersaturation is uniform along many alternate routes. Flood water can form angular networks in fractured rock, anastomotic mazes along low-angle partings, or sponge-work where intergranular pores are dominant. Diffuse recharge also forms networks and spongework, often aided by mixing of chemically different waters. Ramiform caves, with sequential outward branches, are formed mainly by rising thermal or H2S-rich water. Dissolution rates in cooling water increase with discharge, CO2 content, temperature, and thermal gradient, but only at thermal gradients of more than 0.01 °C/m can normal ground-water CO2 form caves without the aid of hypogenic acids or mixing. Artesian flow has no inherent tendency to form maze caves. Geologic structure and stratigraphy influence cave orientation and extent, but alone they do not determine branch-work versus maze character.
909 citations
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TL;DR: ChemSpider is a free, online chemical database offering access to physical and chemical properties, molecular structure, spectral data, synthetic methods, safety information, and nomenclature for almost 25 million unique chemical compounds sourced and linked to almost 400 separate data sources on the Web.
Abstract: ChemSpider is a free, online chemical database offering access to physical and chemical properties, molecular structure, spectral data, synthetic methods, safety information, and nomenclature for almost 25 million unique chemical compounds sourced and linked to almost 400 separate data sources on the Web. ChemSpider is quickly becoming the primary chemistry Internet portal and it can be very useful for both chemical teaching and research.
859 citations
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TL;DR: The obtained results indicate that the 5 most critical factors are data security, perceived technical competence, cost, top manager support, and complexity, and among the proposed four dimensions the most important one is technology followed by human, organizational, and environmental factors.
513 citations
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TL;DR: By comparing younger consumers with their older counterparts, in terms of gender the findings indicate that the major factors driving older adults toward online shopping are performance expectation and social influence which is the same with younger, and it is notable that older adults show no gender differences in regards to the drivers and barriers.
418 citations
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TL;DR: Low inbreeding depression and marker-based estimates of selfing are shown, demonstrating that when the pollination environment in wild populations necessitates reproductive assurance, selfing rates increase.
Abstract: The evolution of self-fertilization in hermaphrodites is opposed by costs that decrease the value of self progeny relative to that of outcross progeny. However, self-fertilization is common in plants; 20% are highly selfing and 33% are intermediate between selfing and outcrossing. Darwin proposed an adaptive benefit of self-pollination in providing reproductive assurance when outcrossing is impossible. Moreover, if outcross pollen receipt is inconsistent within or between years, these conditions likewise favour self-pollination, and this can result in a mixture of self and outcross seed production (mixed mating). Despite wide acceptance, the reproductive assurance hypothesis has lacked the support of complete empirical evidence to show that variable pollination can create both the ecological and genetic conditions favouring self-pollination. We recently showed in Collinsia verna that during periods of infrequent pollinator visits, autonomous self-pollination boosted seed output per flower, the key ecological condition. Here we show low inbreeding depression and marker-based estimates of selfing, demonstrating that when the pollination environment in wild populations necessitates reproductive assurance, selfing rates increase. We provide a complete demonstration of reproductive assurance under variable pollination environments and mechanistically link reproductive assurance to intermediate selfing rates through mixed mating.
406 citations
Authors
Showing all 470 results
Name | H-index | Papers | Citations |
---|---|---|---|
David C. Yen | 61 | 345 | 17988 |
Stephen T. Russell | 56 | 225 | 13372 |
Ronald P. Rohner | 39 | 123 | 7008 |
Ilan Alon | 38 | 252 | 5265 |
John H. Relethford | 33 | 119 | 4569 |
Michael Brown | 32 | 110 | 10455 |
Preston A. Britner | 27 | 59 | 2496 |
Andrew C. Gallup | 25 | 86 | 1968 |
Christopher M. Stojanowski | 24 | 95 | 2228 |
Michael Faux | 21 | 59 | 1322 |
Susan D. Suarez | 19 | 27 | 1291 |
Yonah Alexander | 16 | 54 | 807 |
Jim Zians | 16 | 25 | 910 |
G. Scott Erickson | 15 | 72 | 864 |
Nigel I. Mann | 15 | 17 | 827 |