Results 181 to 190 of about 152,888 (302)

Seeds of change: The impact of Ethiopia's direct seed marketing approach on smallholders' seed purchases and productivity

American Journal of Agricultural Economics, EarlyView.
Abstract While multiple factors explain low adoption rates of improved varieties by small‐scale farmers in sub‐Saharan Africa, a key supply‐side constraint is the limited availability of seed embodying new traits in the volume, quality, price, and timeliness required by farmers. This constraint is partly attributable to classical failures in the market
Dawit Mekonnen, Gashaw T. Abate, Seid Yimam, Rui Benfica, David J. Spielman, Frank Place   +5 more
wiley   +1 more source

Variations of Alloying Site Density in Pd₁Cu Single-Atom Alloy Catalysts Lead to Shifted Product Yields in Electrochemical CO Reduction. [PDF]

Angew Chem Int Ed Engl
Jin Z, Xu Y, Seim IK, Chhetri M, Lee S, Poplawsky JD, Chao HJ, Burns J, Fang L, Li T, Zou M, Zhou T, Tong J, Che F, Yang M.   +14 more
europepmc   +1 more source

Premium subsidy designs and crowding out of insurance demand

American Journal of Agricultural Economics, EarlyView.
Abstract Crop insurance is an important instrument to protect farmers against extreme weather events. Many countries provide subsidies for crop insurance products to make insurance more affordable for farmers. The Federal Crop Insurance Program in the United States and major European crop insurance programs such as in Spain, Italy, and France focus on ...
Tim Philippi
wiley   +1 more source

Wisdom of the crowd [PDF]

Nature, 2005
openaire   +2 more sources

Students studying in a crowded dorm room

Students studying in a crowded dorm room.
Indiana State University
core  

Income sharing for common pool resources with uncertain productivity

American Journal of Agricultural Economics, EarlyView.
Abstract We address the interconnected issues of externalities in the use of a natural common‐pool resource system and adverse effects of environmental uncertainty on risk‐averse resource users. We set up a simple analytical model and derive conditions such that insurance by means of an income sharing mechanism mitigates externalities and hence ...
Claudia Kelsall, Martin Quaas, Nicolas Quérou   +2 more
wiley   +1 more source

Reproductive stages in lowbush blueberry (Vaccinium angustifolium) occur earlier with increasing temperature

American Journal of Botany, EarlyView.
Abstract Premise Climate change is altering the timing of many plant phenological events, yet most studies focus on flowering, with less attention given to later reproductive stages such as fruit development and ripening. Vaccinium angustifolium (lowbush blueberry) is an important perennial berry species that may be sensitive to these changes.
Jenna Floyd, Elise Cadiou, Alain G. Belliveau, Zoe A. Panchen, Terrell T. Roulston, Zoë Migicovsky   +5 more
wiley   +1 more source

Impact of dentition alignment, scanning strategy and operator experience on the accuracy and time of intraoral scanning: an in vitro study. [PDF]

BMC Oral Health
Chen Y, Dong Y, Tang Y, Wu Y, Chen T, Tao J, Zhao J.   +6 more
europepmc   +1 more source

Border harm and affective injustice: The politics of anger at the Melilla border, Spain

American Journal of Community Psychology, EarlyView.
Abstract This article examines protests in a detention center in Melilla, Spain—a site where structural violence intersects with the everyday harms of confinement. Adopting a justice and dignity‐centered perspective, we analyze grassroots forms of resistance emerging at the border. The study focuses on the protests of Tunisian migrants and explores the
Corina Tulbure
wiley   +1 more source

Diffuse gallbladder epithelial proliferation after teduglutide exposure: A case report. [PDF]

JPGN Rep
Duggan CP, Carey AN, McGivney M, Puder M, Perez-Atayde AR.   +4 more
europepmc   +1 more source