Objective- This study aims at validating the use of serum amyloid A (SAA) as biomarkers of surgical stress using Quantitative ELISA in the Sahel goats. The experiment evaluated SAA profiles of Sahel goats post Diazepam-Lidocaine (DLC) and Diazepam-Bupivacaine (DBC) local anaesthesia. Expressions of SAA in the Sahel goat post rumen skin clamp fixation techniques of rumenotomy wi...

1 : Head of the Rural Transformation and Sustainable Development Unit, Sahel and West Africa Club (SWAC/OECD), 2, rue André-Pascal, 75775 Paris, Cedex 16 ; Tel +33 1 45 24 19 82; e-mail: [email protected] 2 : Agricultural-economist, Rural Transformation and Sustainable Development Unit, Sahel and West Africa Club (SWAC/OECD), 2, rue André-Pascal, 75775 Paris, Cedex 16; Tel +33 1 45 24 ...

The simulations of the fifth Coupled Models Intercomparison Project (CMIP5) strengthen previous assessments of a substantial role of anthropogenic emissions in driving precipitation changes in the Sahel, the semi-arid region at the southern edge of the Sahara. Historical simulations can capture the magnitude of the centennial Sahel drying over the span of the 20th century and confirm that anthr...

The Sahel, the transition zone between the Saharan desert and the rainforests of Central Africa and the Guinean Coast, experienced a severe drying trend from the 1950s to the 1980s, from which there has been partial recovery. Continuation of either the drying trend or the more recent ameliorating trend would have far-ranging implications for the economy and ecology of the region. Coupled atmosp...

To contemplate discussing the strategic challenges in the Mediterranean at the present time without taking account of the geopolitics of the Sahel is simply unthinkable. The Sahel occupies a key location mid-way between the Mediterranean world and sub-Saharan Africa. A buffer zone but above all an area of contact and trade which cannot easily be controlled, the Sahel arc is fast becoming an end...

[1] Prominent multidecadal fluctuations of India summer rainfall, Sahel summer rainfall, and Atlantic Hurricane activity have been observed during the 20th century. Understanding their mechanism(s) will have enormous social and economic implications. We first use statistical analyses to show that these climate phenomena are coherently linked. Next, we use the GFDL CM2.1 climate model to show th...

Acytogenetic study was performed on 66 tetraploid cotton cultivars (Gossypium hirsutum L.) and their hybrids. The cultivars studied differed significantly in their chiasma frequency and distribution as well as chromosome pairing indicating their genetic differences. Adjacent and alternate quadrivalents were formed in most of the cultivars. A-A or D-D heterozygote translocations occurred in most...

Tyndall working papers are "work in progress". Whilst they are commented on by Tyndall researchers, they have not been subject to a full peer review. The accuracy of this work and the conclusions reached are the responsibility of the author(s) alone and not the Tyndall Centre. Summary The African Sahel experienced a prolonged dry episode in the latter decades of the twentieth century, character...

BACKGROUND Despite the widespread use of dexamethasone in veterinary and human medicine, it is reported to cause some severe pregnancy related side effects like abortion in some animals. The mechanism of the response is not clear but seems to be related to interspecies and/or breed difference in response which may involve alterations in the concentrations of some reproductive hormones. METHOD...

[1] The Sahel region of Africa underwent a pronounced interdecadal drying trend in the latter half of the 20th century. In order to investigate this drying trend, several ensembles of numerical experiments are conducted using a recently developed atmospheric general circulation model (AM2, developed at NOAA’s Geophysical Fluid Dynamics Laboratory). When the model is forced with the time series ...