Results 51 to 60 of about 405,192 (272)

The Power of Unity: Collective Action and Smallholder Agricultural Performance in West Africa

Agribusiness, EarlyView.
ABSTRACT We analyze the impact of collective action through farmer‐based organizations (FBOs) on smallholders' farm performance and income inequality in Ghana, Benin, The Gambia, and Mali. We find that FBO membership increases cereal yield in Ghana and The Gambia, legume yield in Mali, ruminant numbers in Benin and The Gambia, and total farm income in ...
Emmanuel Donkor, Bright Owusu Asante, David Boansi, Victor Owusu   +3 more
wiley   +1 more source

La gestion des puits communautaires dans le centre-sud du Niger: les faces cachées d’une Arène locale [PDF]

Akofena, 2022
La présente recherche met l’accent sur la dynamique des conflits liés à l’usage et la gestion des puits communautaires en milieu rural nigérien. Elle montre que la réalisation de puits dans le département de Mayahi, centre-sud du pays, n’est pas sans ...
Bizo BETOU & Ramané KABORE
doaj  

Evolutionary accessibility of mutational pathways [PDF]

, 2011
Functional effects of different mutations are known to combine to the total effect in highly nontrivial ways. For the trait under evolutionary selection (`fitness'), measured values over all possible combinations of a set of mutations yield a fitness ...
de Visser, J. Arjan G. M., Franke, Jasper, Klözer, Alexander, Krug, Joachim   +3 more
core   +5 more sources

Development of Artificial Intelligence for Quantitative Assessment of Nasal Inflammatory Cytology in Chronic Rhinitis by Whole‐Slide Images

International Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background Chronic rhinitis (CR) is currently recognized as a syndrome that manifests in different phenotypes. We aimed to establish an artificial intelligence system (quantitative assessment of nasal inflammatory cytology, QANIC) on the basis of whole‐slide images (WSIs) to enable quantitative assessment of nasal inflammatory cells.
Xu Zhang, Xu Xu, Weiwei Liu, Long Qin, Yu Song, Jingyun Li, Lin Xi, Chengshuo Wang, Luo Zhang, Yuan Zhang   +9 more
wiley   +1 more source

Climate Change, Migration, and Conflict in Northwest Africa [PDF]

, 2012
Examines how climate change affects the number of migrants from sub-Saharan Africa traveling through Nigeria, Niger, Algeria, and Morocco; increased security risks in the region; how these factors exacerbate one another; and intercontinental ...
Laura Conley, Michael Werz
core  

Development of novel multiplex microsatellite polymerase chain reactions to enable high-throughput population genetic studies of Schistosoma haematobium [PDF]

, 2015
© 2015 Webster et al. Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in ...
A. A. Hamidou, A. Garba, A. Gouvras, A. M. Emery, AM Emery, B. L. Webster, BL Webster, C Van Oosterhout, CM Gower, CM Gower, D. Rollinson, F. Allan, J. P. Webster, JP Webster, K. A. Mohammed, L Meurs, M Kearse, M. Rabone, R Peakall, S Knopp, S. Knopp, S. M. Ame, T. Pennance, TC Glenn   +23 more
core   +4 more sources

Skeletal pathologies in extant crocodilians as a window into the paleopathology of fossil archosaurs

The Anatomical Record, EarlyView.
Abstract Crocodilians, together with birds, are the only extant relatives to many extinct archosaur groups, making them highly important for interpreting paleopathological conditions in a phylogenetic disease bracketing model. Despite this, comprehensive data on osteopathologies in crocodilians remain scarce.
Alexis Cornille, Kyla Beguesse, Ewan Wolff, Clemens Zinner, Patrick Asbach, François Clarac, Florian Witzmann   +6 more
wiley   +1 more source

Isolation and Screening of Enzymatic Hydrolysis of Starch by Enzyme Amylase from Soil Isolate Aspergillus Niger

RADS Journal of Biological Research & Applied Science, 2015
Amylase has become the most promising enzyme in the industrial field due to its economical values and high catalytic rate. This class of enzyme constitutes approximately 25–30% of the enzyme stock around the world.
Neha Baqai
doaj  

Infection palustre de la femme enceinte à Niamey au Niger

The Pan African Medical Journal, 2020
INTRODUCTION: Le paludisme chez la femme enceinte est problème majeur de santé public en Afrique. Il a des conséquences graves aussi bien sur la mère, le fœtus que le nouveau-né.
Zara Maman Oumarou, Mahaman Moustapha Lamine, Tahirou Issaka, Kamayé Moumouni, Ibrahim Alkassoum, Daou Maman, Mahamadou Doutchi, Soumana Alido, Ibrahim Maman Laminou   +8 more
doaj   +1 more source

Soil and Water Contamination due to Illegal Artisanal Refinery Activities: A Case Study of Okarki Community, Niger Delta Area, Nigeria [PDF]

, 2019
Using a combination of field visits, laboratory experiments and analyses, this study examined the impacts of illegal artisanal crude oil refineries on the environment. Total Hydrocarbons (THC) and heavy metals in the soil and water bodies as well as pr
Galadima, Muhammed, Gwary, Kwatamshuwa, Hasan, Diya'uddeen, Zaria, Usman Abubakar   +3 more
core   +1 more source