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Institution

Oregon State University

EducationCorvallis, Oregon, United States
About: Oregon State University is a education organization based out in Corvallis, Oregon, United States. It is known for research contribution in the topics: Population & Climate change. The organization has 28192 authors who have published 64044 publications receiving 2634108 citations. The organization is also known as: Oregon Agricultural College & OSU.


Papers
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Journal ArticleDOI
TL;DR: A series of automated tests is developed for tower and aircraft time series to identify instrumentation problems, flux sampling problems, and physically plausible but unusual situations and serves as a safety net for quality controlling data.
Abstract: A series of automated tests is developed for tower and aircraft time series to identify instrumentation problems, flux sampling problems, and physically plausible but unusual situations. The automated procedures serve as a safety net for quality controlling data. A number of special flags are developed representing a variety of potential problems such as inconsistencies between different tower levels and the flux error due to fluctuations of aircraft height. The tests are implemented by specifying critical values for parameters representing each specific error. The critical values are developed empirically from experience of applying the tests to real turbulent time series. When these values are exceeded, the record is flagged for further inspection and comparison with the rest of the concurrent data. The inspection step is necessary to either verify an instrumentation problem or identify physically plausible behavior. The set of tests is applied to tower data from the Riso Air Sea Experiment and...

1,354 citations

Journal ArticleDOI
TL;DR: Predictive relations between preschoolers' behavioral regulation and emergent literacy, vocabulary, and math skills and Hierarchical linear modeling was utilized because children were nested in 54 classrooms at 2 geographical sites revealed that behavioral regulation significantly and positively predicted fall and spring emergent Literacy and vocabulary skills.
Abstract: This study investigated predictive relations between preschoolers’ (N 310) behavioral regulation and emergent literacy, vocabulary, and math skills. Behavioral regulation was assessed using a direct measure called the Head-to-Toes Task, which taps inhibitory control, attention, and working memory, and requires children to perform the opposite of what is instructed verbally. Hierarchical linear modeling (HLM) was utilized because children were nested in 54 classrooms at 2 geographical sites. Results revealed that behavioral regulation significantly and positively predicted fall and spring emergent literacy, vocabulary, and math skills on the Woodcock Johnson Tests of Achievement (all ps .05). Moreover, growth in behavioral regulation predicted growth in emergent literacy, vocabulary, and math skills over the prekindergarten year (all ps .05), after controlling for site, child gender, and other background variables. Discussion focuses on the role of behavioral regulation in early academic achievement and preparedness for kindergarten.

1,345 citations

Journal ArticleDOI
Brian J. Haas1, Sophien Kamoun2, Sophien Kamoun3, Michael C. Zody4, Michael C. Zody1, Rays H. Y. Jiang1, Rays H. Y. Jiang5, Robert E. Handsaker1, Liliana M. Cano3, Manfred Grabherr1, Chinnappa D. Kodira1, Chinnappa D. Kodira6, Sylvain Raffaele3, Trudy Torto-Alalibo2, Trudy Torto-Alalibo6, Tolga O. Bozkurt3, Audrey M. V. Ah-Fong7, Lucia Alvarado1, Vicky L. Anderson8, Miles R. Armstrong9, Anna O. Avrova9, Laura Baxter10, Jim Beynon10, Petra C. Boevink9, Stephanie R. Bollmann11, Jorunn I. B. Bos2, Vincent Bulone12, Guohong Cai13, Cahid Cakir2, James C. Carrington14, Megan Chawner15, Lucio Conti16, Stefano Costanzo11, Richard Ewan16, Noah Fahlgren14, Michael A. Fischbach17, Johanna Fugelstad12, Eleanor M. Gilroy9, Sante Gnerre1, Pamela J. Green18, Laura J. Grenville-Briggs8, John Griffith15, Niklaus J. Grünwald11, Karolyn Horn15, Neil R. Horner8, Chia-Hui Hu19, Edgar Huitema2, Dong-Hoon Jeong18, Alexandra M. E. Jones3, Jonathan D. G. Jones3, Richard W. Jones11, Elinor K. Karlsson1, Sridhara G. Kunjeti20, Kurt Lamour21, Zhenyu Liu2, Li-Jun Ma1, Dan MacLean3, Marcus C. Chibucos22, Hayes McDonald23, Jessica McWalters15, Harold J. G. Meijer5, William Morgan24, Paul Morris25, Carol A. Munro8, Keith O'Neill1, Keith O'Neill6, Manuel D. Ospina-Giraldo15, Andrés Pinzón, Leighton Pritchard9, Bernard H Ramsahoye26, Qinghu Ren27, Silvia Restrepo, Sourav Roy7, Ari Sadanandom16, Alon Savidor28, Sebastian Schornack3, David C. Schwartz29, Ulrike Schumann8, Ben Schwessinger3, Lauren Seyer15, Ted Sharpe1, Cristina Silvar3, Jing Song2, David J. Studholme3, Sean M. Sykes1, Marco Thines3, Marco Thines30, Peter J. I. van de Vondervoort5, Vipaporn Phuntumart25, Stephan Wawra8, R. Weide5, Joe Win3, Carolyn A. Young2, Shiguo Zhou29, William E. Fry13, Blake C. Meyers18, Pieter van West8, Jean B. Ristaino19, Francine Govers5, Paul R. J. Birch31, Stephen C. Whisson9, Howard S. Judelson7, Chad Nusbaum1 
17 Sep 2009-Nature
TL;DR: The sequence of the P. infestans genome is reported, which at ∼240 megabases (Mb) is by far the largest and most complex genome sequenced so far in the chromalveolates and probably plays a crucial part in the rapid adaptability of the pathogen to host plants and underpins its evolutionary potential.
Abstract: Phytophthora infestans is the most destructive pathogen of potato and a model organism for the oomycetes, a distinct lineage of fungus-like eukaryotes that are related to organisms such as brown algae and diatoms. As the agent of the Irish potato famine in the mid-nineteenth century, P. infestans has had a tremendous effect on human history, resulting in famine and population displacement(1). To this day, it affects world agriculture by causing the most destructive disease of potato, the fourth largest food crop and a critical alternative to the major cereal crops for feeding the world's population(1). Current annual worldwide potato crop losses due to late blight are conservatively estimated at $6.7 billion(2). Management of this devastating pathogen is challenged by its remarkable speed of adaptation to control strategies such as genetically resistant cultivars(3,4). Here we report the sequence of the P. infestans genome, which at similar to 240 megabases (Mb) is by far the largest and most complex genome sequenced so far in the chromalveolates. Its expansion results from a proliferation of repetitive DNA accounting for similar to 74% of the genome. Comparison with two other Phytophthora genomes showed rapid turnover and extensive expansion of specific families of secreted disease effector proteins, including many genes that are induced during infection or are predicted to have activities that alter host physiology. These fast-evolving effector genes are localized to highly dynamic and expanded regions of the P. infestans genome. This probably plays a crucial part in the rapid adaptability of the pathogen to host plants and underpins its evolutionary potential.

1,341 citations

Journal ArticleDOI
13 Jun 2008-Science
TL;DR: The ocean uptake of anthropogenic CO2 has increased the areal extent of the affected area, and seawater that is undersaturated with respect to aragonite upwelling onto large portions of the continental shelf is observed.
Abstract: The absorption of atmospheric carbon dioxide (CO2) into the ocean lowers the pH of the waters. This so-called ocean acidification could have important consequences for marine ecosystems. To better understand the extent of this ocean acidification in coastal waters, we conducted hydrographic surveys along the continental shelf of western North America from central Canada to northern Mexico. We observed seawater that is undersaturated with respect to aragonite upwelling onto large portions of the continental shelf, reaching depths of approximately 40 to 120 meters along most transect lines and all the way to the surface on one transect off northern California. Although seasonal upwelling of the undersaturated waters onto the shelf is a natural phenomenon in this region, the ocean uptake of anthropogenic CO2 has increased the areal extent of the affected area.

1,336 citations

Journal ArticleDOI
TL;DR: In this article, the root biomass density is estimated based on existing data from the literature and linear regression analysis is used to determine if a reliable method to estimate root density for forests could be developed.
Abstract: Because the world's forests play a major role in regulating nutrient and carbon cycles, there is much interest in estimating their biomass. Estimates of aboveground biomass based on well-established methods are relatively abundant; estimates of root biomass based on standard methods are much less common. The goal of this work was to determine if a reliable method to estimate root biomass density for forests could be developed based on existing data from the literature. The forestry literature containing root biomass measurements was reviewed and summarized and relationships between both root biomass density (Mg ha−1) and root:shoot ratios (R/S) as dependent variables and various edaphic and climatic independent variables, singly and in combination, were statistically tested. None of the tested independent variables of aboveground biomass density, latitude, temperature, precipitation, temperature:precipitation ratios, tree type, soil texture, and age had important explanatory value for R/S. However, linear regression analysis showed that aboveground biomass density, age, and latitudinal category were the most important predictors of root biomass density, and together explained 84% of the variation. A comparison of root biomass density estimates based on our equations with those based on use of generalized R/S ratios for forests in the United States indicated that our method tended to produce estimates that were about 20% higher.

1,334 citations


Authors

Showing all 28447 results

NameH-indexPapersCitations
Robert Stone1601756167901
Menachem Elimelech15754795285
Thomas J. Smith1401775113919
Harold A. Mooney135450100404
Jerry M. Melillo13438368894
John F. Thompson132142095894
Thomas N. Williams132114595109
Peter M. Vitousek12735296184
Steven W. Running12635576265
Vincenzo Di Marzo12665960240
J. D. Hansen12297576198
Peter Molnar11844653480
Michael R. Hoffmann10950063474
David Pollard10843839550
David J. Hill107136457746
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
2023105
2022375
20213,156
20203,109
20193,017
20182,987