Results 231 to 240 of about 1,521,033 (284)

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

open access: yesAmerican 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   +5 more
wiley   +1 more source

Choice experiments on land managers' participation in environmental programs: A systematic review and meta‐analysis of estimate validity

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Discrete choice experiments are increasingly being used to estimate land managers' willingness to accept participation in incentive‐based environmental programs. This is a specific application of discrete choice experiments: the estimation of willingness to accept for a private good (program participation) where respondents have to make trade ...
Anastasio J. Villanueva   +2 more
wiley   +1 more source

Maternal Factors Modifying the Link Between Genetic Risk for Autism and Developmental Milestones

open access: yesAmerican Journal of Medical Genetics Part B: Neuropsychiatric Genetics, EarlyView.
ABSTRACT Although common genetic liability—quantified through polygenic risk scores (PRS)—accounts for substantial variance in autism spectrum disorder (ASD) liability, how prenatal environmental exposures interact with genetic predisposition to shape developmental outcomes remains poorly understood. Using the data from Autism Genetic Resource Exchange
Liliana D'Alesio   +4 more
wiley   +1 more source

A smart fiber-optic towed hydrophone array for open-sea cruising observation. [PDF]

open access: yesInnovation (Camb)
Li S   +7 more
europepmc   +1 more source

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