Results 241 to 250 of about 11,592,761 (284)

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

How recombination and clonal evolution shape bacterial lineages and genomes. [PDF]

Genetics
Preska Steinberg A, Kussell E.
europepmc   +1 more source

Policy uncertainty shocks and farm investments in Europe: Evidence from a newspaper‐based index

American Journal of Agricultural Economics, EarlyView.
Abstract In order to quantify the impact of agricultural policy uncertainty on European farmers' investment behavior, we construct a newspaper‐based monthly index of European agricultural policy uncertainty from 2013 to 2023. We use 327,224 newspaper articles to assess and compare the trends in policy uncertainty across five top agricultural producers ...
Viviana Garcia, Scott M. Swinton, Robert Finger   +2 more
wiley   +1 more source

Oral artificial microbio-vaccine triggers synergistic immunogenic cell death induction and tumor microenvironment remodeling for liver cancer therapy. [PDF]

Acta Pharm Sin B
Cheng Q, Li S, Deng L, Xiong L, Hu H, Li J, Zhang L, Guo B, Zheng C, Zhang J.   +9 more
europepmc   +1 more source

A well‐resolved phylogeny of Cuscuta subgenus Monogynella based on data drawn from all three plant genomes

American Journal of Botany, EarlyView.
Abstract Premise Cuscuta (dodders) consists of ~200 species circumscribed into four subgenera (Monogynella, Cuscuta, Pachystigma, and Grammica) and is the only parasitic genus in Convolvulaceae (the morning‐glory family). This group shows a significant diversity in plastid functionality and represents a rare mixotrophic system among parasitic plants ...
Asawari Albal, Saša Stefanović
wiley   +1 more source

Food Structure Modulation of Antioxidant Bioaccessibility and Gut Epithelial Protection: The Case of Bread and Pasta Made With Pigmented Wheat. [PDF]

Food Sci Nutr
Feliziani G, Tagliasco M, Suo X, Pellegrini N, Vittadini E, Bordoni L, Gabbianelli R.   +6 more
europepmc   +1 more source

A mid‐Cretaceous monocot flower from the Dakota Sandstone of Kansas and its potential implications for the fossil record of palms

American Journal of Botany, EarlyView.
Abstract Premise Although the megafossil flora of the upper Albian–lower Cenomanian Dakota Formation in Kansas is well known for angiosperms, monocots have not been reported previously. Methods A mesofossil flower was discovered by X‐ray analysis of a specimen collected more than a century ago from the Dakota Sandstone of central Kansas.
Bruce H. Tiffney, Walter S. Judd, William J. Baker, John Dransfield, Steven R. Manchester   +4 more
wiley   +1 more source

Ferric reductase related proteins Frp1 and Frp2 mediate reductive heme uptake in the opportunistic pathogen Candida albicans. [PDF]

J Inorg Biochem
Fu Y, Lee Y, Kornitzer D, Reddi AR.
europepmc   +1 more source

Transitioning to nonpunitive school policies for addressing student substance use: Qualitative interviews with key school administrators

American Journal of Community Psychology, EarlyView.
Abstract Recent policy change in Massachusetts encourages schools to limit their use of exclusionary discipline to “extraordinary circumstances,” but little work has explored the opportunities and challenges of transitioning to nonpunitive practices after student substance use infractions in schools.
Kristina Conroy, M. Grace Albright, Kendall B. Roberts, Meghan A. Costello, Anthony J. Jannetti, Alexis R. Wing, Randi M. Schuster   +6 more
wiley   +1 more source

Classifying voice disorders for machine learning: a pilot study using the USVAC-C2025 diagnostic framework. [PDF]

Front Digit Health
Madill C, Leong ZH, Manoharan D, Gunjawate D, Grover C, Sandham K, Gupta R, Jin C, Nguyen DD, Johnson JJ, Novakovic D.   +10 more
europepmc   +1 more source