Results 71 to 80 of about 229,123 (307)

Migration, colonization and seedling growth of rhizobia with matrine treatment in alfalfa (Medicago sativa L.)

open access: yesActa Agriculturae Scandinavica. Section B, Soil and Plant Science, 2018
Purpose: The purposes of this study were to determine the effect of matrine on the migration and the colonization dynamics of the two fluorescent-tagged rhizobia in Gannong No.5 alfalfa (Medicago sativa L. Gannong No.
Yang-yang Miao   +3 more
doaj   +1 more source

n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz

open access: yesAdvanced Materials, EarlyView.
Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis   +19 more
wiley   +1 more source

PUBLIC LAND POLICY AND THE VALUE OF GRAZING PERMITS [PDF]

open access: yes
This article provides an empirical test of the traditional theory of permit value and investigates the impact of recent changes in public land policies on the value of grazing permits.
Doll, John P., Torell, L. Allen
core  

Thermodynamic Limits to Molecular Doping in Conjugated Polymers: A Perspective on Phase Behavior and Miscibility

open access: yesAdvanced Materials, EarlyView.
Molecular doping of conjugated polymers is fundamentally constrained by thermodynamic phase behavior. This Perspective reframes doping efficiency and stability in terms of miscibility limits, binodals, and solvus boundaries, highlighting the role of effective interaction parameters and charge transfer.
Somayeh Kashani   +10 more
wiley   +1 more source

Cattle grazing on semi-natural pastures [PDF]

open access: yes, 2010
The knowledge of the grazing behaviour of cattle on Swedish semi-natural pastures and how this relates to the nutritional quality and quantity of the vegetation is low. In a situation where farming is being intensified both nationally and globally, it is
Pelve, Maja
core   +1 more source

FEDERAL GRAZING REFORM AND AVOIDABLE RISK [PDF]

open access: yes
Recent rangeland reform attempts have increased ranchers'Â’ uncertainty of retaining grazing permits on federal land. This uncertainty is analyzed with a model of grazing on federal land.
Rausser, Gordon C., McCluskey, Jill J.
core  

Resistance to Overdoping Allows Over 2000 S cm−1 Conductivity in P(g3BTTT) With Anion‐Exchange Doping

open access: yesAdvanced Materials, EarlyView.
Anion‐exchange doping of conjugated polymers is an effective way to achieve high conductivities. Here, we report over 2000 S cm−1 electrical conductivity for doped P(g3BTTT). In addition, we show that P(g3BTTT) sustains exceptionally high doping levels without any drop in the charge mobility.
Basil Hunger   +14 more
wiley   +1 more source

The Effects of Supplemental Feeding on Methane Emissions from Yak Grazing in the Warm Season

open access: yesAnimals
The yak industry constitutes a pivotal segment of livestock development across the Qinghai–Tibetan Plateau and adjacent pastoral regions. Existing studies have shown that supplemental feeding for grazing yaks significantly improves meat quality and ...
Wanhao Ma   +10 more
doaj   +1 more source

Rethinking Charge Transport and Recombination in Donor‐Diluted Organic Solar Cells

open access: yesAdvanced Materials, EarlyView.
Organic solar cells with 1–45% PM6 content in Y12 were studied to link structure and charge dynamics to performance. The conductivity follows a 3D percolation model without a sharp threshold. Donor dilution preserves the photogeneration yield, but limits the fill factor due to transport resistance losses.
Chen Wang   +14 more
wiley   +1 more source

Genome-wide analysis of the EIN3/EIL family in rye and functional identification of ScEIL5 in stripe rust resistance

open access: yesFrontiers in Plant Science
IntroductionIntroduction: Rye (Secale cereale L.) is a cereal crop with superior overall stress tolerance, particularly prominent resistance to stripe rust, cold, and drought.
Yarong Wang   +4 more
doaj   +1 more source

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