Results 71 to 80 of about 12,145 (232)

Mechanism of endocarp-imposed constraints of germination of Lannea microcarpa seeds [PDF]

open access: yes, 2008
Lannea microcarpa, a multipurpose tree species from the dry African savanna, sheds seeds that often display inhibition of germination. The underlying mechanism was investigated using seeds processed from fully matured fruits collected from natural stands
Golovina, E.A., Hoekstra, F.A., Neya, O.
core   +2 more sources

Energetic and oxidative costs of microfilarial infection: evidence for fitness trade‐offs in male village weavers of the Amurum Forest Reserve

open access: yesWildlife Biology, Volume 2026, Issue 1, January 2026.
Microfilariae contribute to a higher energetic demand that could lead to oxidative damage and reduce hosts' fitness. Yet reports about the energy status and oxidative stress‐defense mechanisms of infected wild birds are rarely documented. We investigated the relationship between microfilariae and the energy status and oxidative damage‐defense ...
Felix A. Andong   +6 more
wiley   +1 more source

Toxicological evaluation of methanol extract of Khaya senegalensis leaves in African catfish Clarias gariepinus

open access: yesJournal of Applied Sciences and Environmental Management, 2015
The toxicity of methanol extract of Khaya senegalensis leaves was evaluated in Clarias gariepinus over 96 h exposure. The fish were exposed to 150 mg/L. 170 mg/L. 190mg/L, 210 mg/L and 230 mg/L of the extract and a control in acute static bioassay after
OA Abui, MM Motouke
doaj   +1 more source

Khaya Cellulose Supported Copper Nanoparticles for Chemo Selective Aza-Michael Reactions [PDF]

open access: yes, 2016
We prepared a highly active Khaya cellulose supported poly(hydroxamic acid) copper nanoparticles by the surface modification of Khaya cellulose through graft copolymerization and subsequently amidoximation.
Lutfor, M. R.   +2 more
core  

Pharmaceutical Evaluation of the Suspending Properties of Pentadesma butyracea Gum in Biphasic Liquid Preparations of Diffusible and Indiffusible Powders

open access: yesAdvances in Pharmacological and Pharmaceutical Sciences, Volume 2026, Issue 1, 2026.
The use of synthetic polymers as suspending agents is common in pharmaceutical formulations; however, their toxicity and environmental impact have raised safety and sustainability concerns. This has prompted the search for natural alternatives. This study investigated the suspending properties of purified Pentadesma butyracea gum in biphasic liquid ...
Mary-Ann Archer   +8 more
wiley   +1 more source

Micromorphological Characteristics of Cryosols and Ice Complex Deposits of Lena River Delta

open access: yesApplied and Environmental Soil Science, Volume 2026, Issue 1, 2026.
The soils of the Lena River Delta contain significant reserves of soil organic matter, and as a result of riverine erosion and permafrost degradation, the coastal zone is undergoing rapid transformation, releasing substantial amounts of buried carbon from organic‐rich permafrost soils and Ice Complex deposits.
Vyacheslav Polyakov   +2 more
wiley   +1 more source

Yedoma Ice Complex of the Buor Khaya Peninsula (southern Laptev Sea) [PDF]

open access: yesBiogeosciences, 2017
The composition of perennially frozen deposits holds information on the palaeo-environment during and following deposition. In this study, we investigate late Pleistocene permafrost at the western coast of the Buor Khaya Peninsula in the south-central ...
L. Schirrmeister   +9 more
doaj   +1 more source

Diospyro-Kyayetlia Senegalensis ord. nov. in the regional "Parc W" of river Niger [PDF]

open access: yes, 2008
Les végétations arbustives des voisinages des cours d’eau ont été étudiées à partir de 34 relevés phytosociologiques réalisés entre septembre 2001 et décembre 2003, en utilisant la méthode phytosociologique de Braun Blanquet.
Lejoly, Jean   +2 more
core  

Neuroprotective Effects of Khaya Anthotheca (Welw.) C.DC (Meliaceae) Decoction on Neurodegeneration Induced by Estrogen Depletion in Rats

open access: yesJournal of experimental pathology, 2021
Background: Recently, we reported estrogen-like and anxiolytic effects of the decoction of Khaya anthotheca in ovariectomized rats. Rationale: The purpose of the present study was to assess the putative neuroprotective properties of the plant in ...
Zemo Gamo Franklin   +8 more
semanticscholar   +1 more source

Rapid Biodiversity Evaluation of the Arboreal Termites in Kano University of Science and Technology, Wudil, Nigeria

open access: yesBioscientific Review, 2020
A rapid biodiversity evaluation of arboreal termite was carried out on the campus of Kano University of Science and Technology, Wudil. Three different trees which include Mangifera indica, Azadirachta indica and Khaya senegalensis were selected from ...
Jibril Abdullahi, Jamila Bafa Saleh
doaj   +1 more source

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