Results 41 to 50 of about 483,239 (310)
Remote Sensing, 2021 Satellite data offer great promise for improving measures related to sustainable development goals. However, assessing satellite estimates is complicated by the fact that traditional ground-based measures of these same outcomes are often very noisy ...
David B. Lobell +3 more
doaj +1 more source
HETEROSKEDASTICITY IN CROP YIELD MODELS
Journal of Agricultural and Resource Economics, 1991 This study examines three alternative models of correcting for heteroskedasticity in wheat yield: the time trend variance, the GARCH, and an econometric model that includes the potential sources of heteroskedasticity. Nonnested test results suggest that modeling the sources of heteroskedasticity is the preferred procedure.
Yang, Seung-Ryong +5 more
openaire +4 more sources
Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions
FEBS Letters, EarlyView.We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva +10 more
wiley +1 more source
Cover Crop Mixture Effects on Maize, Soybean, and Wheat Yield in Rotation
Agricultural & Environmental Letters, 2019 Despite the popularity of multispecies cover crop mixtures, there is little published evidence of their effects on subsequent crop yields, especially for multiple crops grown in rotation.
Mitchell C. Hunter +7 more
doaj +1 more source
Repeated use of green-manure catch crops in organic cereal production - grain yields and nitrogen supply [PDF]
, 2011 By restricted access to manure, nitrogen (N) supply in organic agriculture relies on biological N-fixation. This study compares grain yields after one full-season green manure (FSGM) to yields with repeated use of a green-manure catch crop.
Eltun, Ragnar +3 more
core
FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
Yield risks in global maize markets: Historical evidence and projections in key regions of the world
Weather and Climate Extremes, 2018 Simultaneous worldwide crop failures stemming from a more unstable climate may reduce the scope for international trade to compensate food shortages and stabilize food prices across the various regions of the world.
Nelson B. Villoria, Bowen Chen
doaj +1 more source
FEBS Letters, EarlyView.We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley +1 more source
Journal of Agriculture and Food ResearchChanging climates, labor markets, scarcity of water and soil degradation threaten productivity in rice (Oryza sativa L.) – wheat (Triticum aestivum L.) rotations the eastern Indo-Gangetic Plain (IGP).
Kavya Krishnan +6 more
doaj +1 more source
Calpain small subunit homodimerization is robust and calcium‐independent
FEBS Letters, EarlyView.Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy +4 more
wiley +1 more source