Institution
University of Maine
Education•Orono, Maine, United States•
About: University of Maine is a education organization based out in Orono, Maine, United States. It is known for research contribution in the topics: Population & Ice sheet. The organization has 8637 authors who have published 16932 publications receiving 590124 citations. The organization is also known as: University of Maine at Orono.
Topics: Population, Ice sheet, Glacial period, Glacier, Ice core
Papers published on a yearly basis
Papers
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TL;DR: In this paper, the role of three characteristics of international managers, namely nationality, cultural distance, and expatriate status, for their network ties is studied, and the implications for international management theory and practice are discussed.
Abstract: We study the role of three characteristics of international managers—nationality, cultural distance, and expatriate status, for their network ties. A network analysis of cross-subsidiary interactions among 457 managers in an MNE demonstrates that managers form strong expressive ties with peers with smaller cultural distance and from the same status group. However, managers form strong instrumental ties with peers who are different on these background characteristics. The implications for international management theory and practice are discussed.
233 citations
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TL;DR: In this article, the effect of small amounts of water, in regard to inhibiting the adsorption of carbon dioxide (CO2), on several different cationic forms of zeolite X was investigated using the zero length column (ZLC) technique, coupled with temperature-programmed desorption (TPD) measurements.
Abstract: The effect of small amounts of water, in regard to inhibiting the adsorption of carbon dioxide (CO2), on several different cationic forms of zeolite X has been investigated using the zero length column (ZLC) technique, coupled with temperature-programmed desorption (TPD) measurements. This is shown to be a very effective way to study the effect of a strongly adsorbed species (water) on the adsorption of a less-strongly adsorbed species (CO2 or propane (C3H8)). It was observed that, for all systems studied, the Henry constant declines exponentially with the loading of water. As expected, this effect is stronger for CO2 than for C3H8.
232 citations
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TL;DR: In this article, the authors evaluate the logic and efficacy of the tests presented by Lapointe (1997) on the causes of algal blooms on coral reefs as a test of the hypothesis that the reefs of Jamaica and southeast Florida had exceeded a threshold level of eutrophication that resulted in blooms of benthic algae.
Abstract: [Extract] The recent paper by Lapointe (1997) on the causes of algal blooms on coral reefs was presented as a test of the hypothesis that the reefs of Jamaica and southeast Florida had exceeded a threshold level of eutrophication that resulted in blooms of benthic algae. We offer this critique to evaluate the logic and efficacy of the tests presented by Lapointe (1997).
231 citations
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TL;DR: The BioTIME database contains raw data on species identities and abundances in ecological assemblages through time to enable users to calculate temporal trends in biodiversity within and amongst assemblage using a broad range of metrics.
Abstract: Motivation: The BioTIME database contains raw data on species identities and abundances in ecological assemblages through time. These data enable users to calculate temporal trends in biodiversity within and amongst assemblages using a broad range of metrics. BioTIME is being developed as a community-led open-source database of biodiversity time series. Our goal is to accelerate and facilitate quantitative analysis of temporal patterns of biodiversity in the Anthropocene.Main types of variables included: The database contains 8,777,413 species abundance records, from assemblages consistently sampled for a minimum of 2 years, which need not necessarily be consecutive. In addition, the database contains metadata relating to sampling methodology and contextual information about each record.Spatial location and grain: BioTIME is a global database of 547,161 unique sampling locations spanning the marine, freshwater and terrestrial realms. Grain size varies across datasets from 0.0000000158 km(2) (158 cm(2)) to 100 km(2) (1,000,000,000,000 cm(2)).Time period and grainBio: TIME records span from 1874 to 2016. The minimal temporal grain across all datasets in BioTIME is a year.Major taxa and level of measurement: BioTIME includes data from 44,440 species across the plant and animal kingdoms, ranging from plants, plankton and terrestrial invertebrates to small and large vertebrates.
231 citations
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TL;DR: Vitamin D intakes need to be increased in winter at northern latitudes because of seasonal fluctuations in serum 25-OHD, and parathyroid hormone levels increased from September to March.
Abstract: The objective was to determine the seasonal fluctuations in serum 25-hydroxyvitamin D (25-OHD) in a group of healthy adolescents living in a northern climate. Twenty-three 9- to 11-year-old girls participated in the study from September 2000 to March 2003. Serum 25-OHD and parathyroid hormone levels were measured each September and March. Dietary intake of vitamin D was assessed each summer and winter. Summer-sun exposure was evaluated using reports of time spent outdoors. The mean decrease in serum 25-OHD from September to March was 28%. Vitamin D insufficiency (at least one serum 25-OHD level <50 nmol/L) was observed in 11 of 23 (48%) subjects. Four of 23 subjects (17%) exhibited vitamin D insufficiency in both September and March. Mean parathyroid hormone levels increased 4 pg/mL (15%) from September to March. Vitamin D intakes need to be increased in winter at northern latitudes.
231 citations
Authors
Showing all 8729 results
Name | H-index | Papers | Citations |
---|---|---|---|
Clifford J. Rosen | 111 | 655 | 47881 |
Juan S. Bonifacino | 108 | 303 | 46554 |
John D. Aber | 107 | 204 | 48500 |
Surendra P. Shah | 99 | 710 | 32832 |
Charles T. Driscoll | 97 | 554 | 37355 |
Samuel Madden | 95 | 388 | 46424 |
Lihua Xiao | 93 | 495 | 32721 |
Patrick G. Hatcher | 91 | 401 | 27519 |
Pedro J. J. Alvarez | 89 | 378 | 34837 |
George R. Pettit | 89 | 848 | 31759 |
James R. Wilson | 89 | 1271 | 37470 |
Steven Girvin | 86 | 366 | 38963 |
Peter Marler | 81 | 174 | 22070 |
Garry R. Buettner | 80 | 304 | 29273 |
Paul Andrew Mayewski | 80 | 420 | 29356 |