نتایج جستجو برای: east and central africa

تعداد نتایج: 16930528  

Journal: :The Onderstepoort journal of veterinary research 2007
M Sahle R M Dwarka E H Venter W Vosloo

The epidemiology of serotype SAT-2 foot-and-mouth disease was investigated in sub-Saharan Africa by phylogenetic analysis using the 1D gene encoding the major antigenic determinant. Fourteen genotypes were identified of which three are novel and belong to East Africa, bringing the total number of genotypes for that region to eight. The genotypes clustered into three lineages that demonstrated s...

2016
Setsuko Okuwaki Yoshiyuki Ikeda Teruaki Oda Tsutomu Asakura

Many Japanese inhabit tropical countries, and some of them are suffering from infectious diseases. In order to know the relationship between the prevalence of these diseases and the degree of faecal pollution of the drinking water, we have examined the drinking water in these countries of the world, and at the same time we have studied the infection rate of intestinal helminths of the Japanese ...

1999
NEIL CUMBERLIDGE

The taxonomy of the freshwater crabs of Mt Kenya and the Aberdare Mountains in central Kenya, East Africa is revised based on a large collection of previously unreported material. Three species belonging to the genus Potamonautes MacLeay, 1838 (Potamonautidae Bott, 1970) are recognized from the region and redescribed. Potamonautes jeanneli (Bouvier, 1921) and P. odhneri (Colosi, 1924) are both ...

Journal: :The Journal of heredity 2006
Eline D Lorenzen Peter Arctander Hans R Siegismund

Samples of 162 impala antelope (Aepyceros melampus) from throughout its distribution range in sub-Saharan Africa were surveyed using eight polymorphic microsatellite loci. Furthermore, 155 previously published mitochondrial DNA (mtDNA) sequences from the same localities were reanalyzed. Two subspecies of impala are presently recognized--the isolated black-faced impala (Aepyceros melampus peters...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده ادبیات و زبانهای خارجی 1390

bserved by many teachers that most of the time, mumbling and searching for their intended words, students complain why they have forgotten the words they have learned in the previous semesters. they ask for some new ways that may help them to recall and apply the learned words more efficiently, since as they declare one of the most important skills in foreign language learning is having a g...

Journal: :Planta medica 1991
J Quetin-Leclercq M Tits L Angenot N G Bisset

Strychnos usambarensis Gilg (Loganiaceae) is one of thé three most widely distributed African species of Strychnos L. In East and South Africa thé plant grows as a small tree 3-15 m in height. In several other localities in East Africa, as well as in Zaïre, Congo, and West Africa, it is found as a climber up to 70 m long (1). The only other morphological différence between thé two forms is thé ...

Journal: :Health transition review : the cultural, social, and behavioural determinants of health 1995
P Setel

Concern has been expressed about the fertility of people infected with HIV: the worry has been that on learning of their condition, HIV-affected individuals may attempt to accomplish unmet reproductive goals knowing that they will not live a normal life span. This article addresses the potential effects of AIDS on fertility and reproductive decisions in East and Central Africa. The problem is s...

Journal: :The Geographical Journal 1918

2013
Carey F McCarthy Joachim Voss Marla E Salmon Jessica M Gross Maureen A Kelley Patricia L Riley

BACKGROUND In sub-Saharan Africa, nurses and midwives provide expanded HIV services previously seen as the sole purview of physicians. Delegation of these functions often occurs informally by shifting or sharing of tasks and responsibilities. Normalizing these arrangements through regulatory and educational reform is crucial for the attainment of global health goals and the protection of practi...

2014
Daniel R. Headrick

Human African trypanosomiasis, better known as sleeping sickness, nowadays ranks among the more neglected diseases in the countries of Africa where it is found. Though it still kills many people every year, it cannot compete for celebrity with such major killers as malaria and AIDS. Yet that was not always the case. A hundred years ago, sleeping sickness attracted considerable scientific resear...

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