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Robert Chambers

As seen in: Nature, Taylor & Francis Online, Science Magazine
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Articles by Robert Chambers

Genetically modified organisms and agricultural productivity: evidence from OECD developed economies

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By Robert Chambers, Yu Sheng
| Taylor & Francis Online
?Mathematical formulae have been encoded as MathML and are displayed in this HTML version using MathJax in order to improve their display. Uncheck the box to turn MathJax off. This feature requires Javascript. Click on a formula to zoom. ABSTRACT How biotechnological innovations connect with aggregate productivity growth in agriculture amid a changing climate remains a critical question.
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"Calorigenic effects of thyroxine and triiodothyronine on rat diaphragm" by Robert Lee Chambers

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By Robert Chambers, Robert Lee, Brigham Young
| scholarsarchive.byu.edu
Abstract Since the isolation of triiodothyronine (T3) by Pitt-Rivers and Gross (1953) several questions as to its role as a thyroid hormone arose. Does T3 have the same or different actions than that of thyroxine (T4 )? Is T3 an emergency hormone, since its synthesis relative to T4 is greatly increased during periods of low iodine intake and its response time is I/5th that of T4 (Ackerman and Arons, 1958)? Are there any interactions modifying their respective actions?
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Growing climatic sensitivity of U.S. agriculture linked to technological change and regional specialization

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By Robert Chambers, Ariel Ortiz-Bobea, Erwin Knippenberg
| Science Magazine Verified
Supplementary material for this article is available at http://advances.sciencemag.org/cgi/content/full/4/12/eaat4343/DC1 Fig. S1. Map of cropland weights. Fig. S2. Map of USDA Climate Hub regions. Fig. S3. Average reduction in MSE of out-of-sample predictions in TFP relative to a model without weather variables (1960–2004). Fig. S4. TFP predictability under varying flexibilities for temperature and precipitation variables. Fig. S5. Predicted productivity changes from summer precipitation change. Fig. S6.
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Growing climatic sensitivity of U.S. agriculture linked to technological change and regional specialization

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By Ariel Ortiz-Bobea, Erwin Knippenberg, Robert Chambers
| Science Magazine Verified
Abstract A pressing question for climate change adaptation is whether ongoing transformations of the agricultural sector affect its ability to cope with climatic variations. We examine this question in the United States, where major increases in productivity have fueled most of agricultural production growth over the past half-century.
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