Results 41 to 50 of about 323,013 (283)

Differences in predominant collagen fiber orientation between dorsal and plantar trabecular bone tracts of adult mule deer calcanei suggest strain‐mode‐specific adaptation

open access: yesThe Anatomical Record, EarlyView.
Polarized microscopic images of the outer bone cortex (a and b) and deeper trabecular bone (c and d) of the deer calcaneus in thin cross‐sections. The brighter gray levels reflect more oblique‐to‐transverse collagen fibers in the compression/dorsal bone (a, c) and the darker gray levels reflect more longitudinal collagen in the tension/plantar bone (b,
John G. Skedros   +3 more
wiley   +1 more source

Maternal near-miss in N’Djamena Mother and Child Hospital, Chad

open access: yesSouth Sudan Medical Journal, 2017
Background: Maternal near-miss describes a woman who almost died but survived a complication that occurred during pregnancy, childbirth or within the 42 days following pregnancy termination.
Gabkika Bray Madoue   +6 more
doaj  

Over the edge: Empirical evidence for the cliff‐edge model of obstetric selection

open access: yesThe Anatomical Record, EarlyView.
Abstract The cliff‐edge model of obstetric selection maintains that larger neonates and smaller birth canals confer a positive selective advantage until labor becomes obstructed and vaginal delivery is no longer possible, eliciting an abrupt reduction in fitness.
Laura M. Watson   +6 more
wiley   +1 more source

The Deby Clan and the Role of the Army in Chadian Politics

open access: yesКонтуры глобальных трансформаций: политика, экономика, право, 2023
For more than 30 years (1990–2021), Chad was ruled by Idriss Deby, one of the most prominent African leaders, who came to power at the head of an armed insurgent group and established a rigidly authoritarian, de facto military regime, but with the ...
T. S. Denisova, S. V. Kostelyanets
doaj   +1 more source

Landuse and enviromental change in the Lake Chad Basin of Nigeria [PDF]

open access: yes, 2006
The Lake Chad Basin is a major geographical region in the central part of the Sudan zone of Africa. The northern parts, however, extend into the Sahel and the southern parts of the Sahara desert.
Udo, Reuben K.
core  

A multifaceted interplay between hemophagocytosis, IL‐18 and type I IFN distinguishes Still disease from other autoinflammatory diseases

open access: yesArthritis &Rheumatology, Accepted Article.
Objectives The unknown pathophysiology and the lack of specific features for systemic Juvenile Idiopathic arthritis and adult‐onset Still disease (collectively Still disease/SD) delays diagnosis and appropriate treatment. The goal of this study was to identify features and mechanisms that distinguish SD from other systemic autoinflammatory diseases ...
Yvonne M. Mueller   +17 more
wiley   +1 more source

Knowledge and social beliefs of malaria and prevention strategies among itinerant Nomadic Arabs, Fulanis and Dagazada groups in Chad: a mixed method study

open access: yesMalaria Journal, 2022
Background Nomadic populations in Chad are at increased risk of contracting malaria because of their lifestyle. Being highly mobile they are often excluded from disease control programmes, and access to preventive measures and treatment is more difficult.
Azoukalné Moukénet   +8 more
doaj   +1 more source

From Megachad to Microchad - environmental changes during the Holocene [PDF]

open access: yes, 2006
The investigations carried out within the project in NE-Nigeria since 1989 have been focussing on the late Pleistocene and Holocene landscape development of the south eastern Chad basin. Areas of interest include palaeodune fields, clay plains and former
Thiemeyer, Heinrich
core  

Digital Transformation and Informal Innovation in Africa: Reframing STI Policy for Inclusive Circular Economy Transitions

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Amid increasing environmental and economic pressures, Africa's transition to a circular economy (CE) presents a vital pathway to inclusive, low‐carbon development. Yet, how digital transformation, informal innovation, and science, technology, and innovation (STI) policy readiness shape CE outcomes remains underexplored.
Emmanuel K. Manu   +2 more
wiley   +1 more source

Preliminary observations on the feeding, habits and reproduction biology of Gymnarchus niloticus from Lake Chad [PDF]

open access: yes, 1986
The preliminary results obtained from the study of stomach contents of specimens of Gymnarchus niloticus of a size ranging from 56 cm (66 grams) to 152 cm (12.0 kg.) from August to December, 1982 indicate for these sizes an exclusively piscivorous diet ...
Sagua, V.O.
core  

Home - About - Disclaimer - Privacy