نتایج جستجو برای: hyrax

تعداد نتایج: 233  

Journal: :Cells, tissues, organs 2002
P Stumpf U Welsch

In order to find correlations between skin gland morphology and specific ethological features, the cutaneous glands of the foot pads of Procavia capensis were studied by histological and various histochemical methods and by electron microscopy. In the foot pads, abundant specific eccrine skin glands occur, which consist of coiled tubular secretory portions and coiled ducts. The wall of the secr...

Journal: :Quaternary International 2022

Archaeologists relate increasing forager reliance on small animals and broad-spectrum resource use to environmental demographic changes in temperate regions during Marine Isotope Stage (MIS) 2, 29-14.7 thousand years ago (ka), MIS 1, after 14.7 ka. However, little research has examined the factors that influenced game hunting arid semi-arid tropics of eastern Africa this period. To address gap,...

Journal: :Quaternary Research 2023

Abstract Arid regions are especially vulnerable to climate change and land use. More than one-third of Earth's population relies on these ecosystems. Modern observations lack the temporal depth determine vegetation responses human activity, but paleoecological archaeological records can be used investigate relationships. Decreasing rainfall across Late Holocene provides a case study for respons...

2017
Joseph O. Ogutu Bernard Kuloba Hans-Peter Piepho Erustus Kanga

Wildlife conservation is facing numerous and mounting challenges on private and communal lands in Africa, including in Kenya. We analyze the population dynamics of 44 common wildlife species in relation to rainfall variation in the Nakuru Wildlife Conservancy (NWC), located in the Nakuru-Naivasha region of Kenya, based on ground total counts carried out twice each year from March 1996 to May 20...

2011
Greg Phillips Miguel A. Gama Francisca Ahn Camilla Butti Sarah F. Funderburk Pamela J. Kennedy Yoshinori N. Ohnishi Steve Pedrini Emeline L. Maillet John H. Morrison George Huntley Ron Alterman Amir S. Bahar Matthew L. Shapiro

Glial cells (astrocytes and oligodendrocytes) play a fundamental role in many brain functions such as propagation of axon potential, integration of neuronal inputs, modulation of synaptic activity and synaptic strength, modulation of glucose metabolism and extracellular ion concentrations, as well as regulation of synaptogenesis and neurogenesis. Glial cell dysfunction is involved in many neuro...

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