Results 61 to 70 of about 265,069 (284)

Remote sensing and dynamic modelling to forecast Rift Valley fever outbreaks in Senegal [PDF]

open access: yes, 2012
Rift Valley Fever (RVF) is a vector-borne viral zoonosis, transmitted either through exposure to infected animals or through bites from infected mosquitoes, mainly from the Aedes or Culex genera.
Chevalier, Véronique   +8 more
core  

Measuring Corporate Alignment With the Circular Economy: a Text‐Based Circularity Index From Mandatory Non‐Financial Disclosures

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The transition to a circular economy (CE) has become a strategic priority for firms, yet empirical assessments of corporate circularity remain fragmented and heavily dependent on structured indicators or self‐reported metrics. This paper proposes a novel, text‐based circularity index derived from mandatory non‐financial statements of large ...
Giuseppe Pernagallo   +2 more
wiley   +1 more source

The occurrence of 2-hydroxy-6-methoxybenzoic acid methyl ester in Securidaca longepedunculata Fresen root bark [PDF]

open access: yesBiotechnologie, Agronomie, Société et Environnement, 2000
As part of our ongoing search for natural fumigants from Senegalese plants, we have investigated Securicicidaca longepedunculata root barks and demonstrated that 2-hydroxy-benzoic acid methyl ester (methyl salicylate, I) is responsible of their biocide ...
Lognay G., Marlier M.
doaj  

Population structure and genetic diversity in Acacia senegal complex of species as revealed by SSR markers [PDF]

open access: yes, 2010
Acacia senegal is a multipurpose African tree mainly exploited for gum Arabic production. It also played a capital role in soil fertilization and as fodder for animals.
Assoumane, Aichatou   +5 more
core  

Effects of Simultaneous Sitophilus zeamais and Prostephanus truncatus During Storage of Maize in Hermetic and Non‐Hermetic Conditions

open access: yesCereal Chemistry, EarlyView.
ABSTRACT Background Sitophilus zeamais (Mostschulsky), the maize weevil, and Prostephanus truncatus (Horn), the larger grain borer, are two notorious insect pests of farm‐stored products in Sub‐Saharan Africa (SSA). The goal of this study was to determine whether there were interactions between P. truncatus and S. zeamais during storage.
Rashid Suleiman, Kurt A. Rosentrater
wiley   +1 more source

Report to SAREC on the UNITAR-UNU-TWF Project: "Strategies for the Future of Africa" [PDF]

open access: yes, 1985
This is a report by Boston University professor Ann Seidman. This report had been prepared at the request of SAREC following a meet1ng of the panel convened March ll-16, 1985.
Seidman, Ann
core  

Dental development in the tropical gar (Atractosteus tropicus) and the evolution of vertebrate dentitions

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Dentitions have diversified enormously during vertebrate evolution, involving reductions, modifications, or allocations to prey seizing and processing regions. A combination of ancient and novel features related to dental and oropharyngeal apparatuses is found in extant lineages of non‐teleost fishes, such as the gars.
Anna Pospisilova   +4 more
wiley   +1 more source

Prevalence and determinants of adherence to antiretroviral treatment among HIV patients on first-line regimen: a cross-sectional study in Dakar, Senegal

open access: yesThe Pan African Medical Journal, 2019
INTRODUCTION: Successful and long-term positive impact of antiretroviral treatment requires high rates of adherence ( 90%). In Senegal, there is a lack of data regarding adherence to antiretroviral treatment and only a few studies have looked at the ...
Mouhamed Abdou Salam Mbengue   +5 more
doaj   +1 more source

Fish Scales: A Multifunctional Biomaterial from Nature

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Fish scales demonstrate nature's solution to impact protection through overlapping multilayered architecture. This biological design combines mineralized surfaces with collagen networks to achieve both flexibility and fracture resistance. The structural principles inspire advanced protective materials and biomedical implants, where damage tolerance ...
Liyao Dong, Xiaojie Sun, Xiguang Chen
wiley   +1 more source

Environmental Policy Without Implementation? A Review of Factors Contributing to Implementation Gaps in Low‐ and Middle‐Income Countries

open access: yesEnvironmental Policy and Governance, EarlyView.
ABSTRACT The sound formation of robust environmental policies is increasingly important for low‐ and middle‐income countries (LMICs) to achieve their national objectives and international commitments. However, policy implementation can be complex, and environmental policies may not be prioritised given other critical socio‐economic development issues ...
Rebecca K. M. Clube, Julia Tomei
wiley   +1 more source

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