نتایج جستجو برای: africa

تعداد نتایج: 111550  

Introduction: The number of travellers from Greece who travel to sub-Saharan Africa has increased during the last decade. Our aim in this research was to study vaccination patterns for travellers travelling to sub-Saharan Africa.Methods: A cross-sectional study was conducted from January 2011 until December 2014 in all (57) public health departments in Gr...

This study has used TOMS AI as well as the reanalysis dataset of thirty-four years (1979-2012) to investigate the influence of atmospheric circulation on dust transport during the Harmattan period in West Africa, using Aerosol Index (AI) data, obtained from various satellite sensors. Changes in Inter-Tropical Discontinuity (ITD), Sea Surface Temperature (SST) over the Gulf of Guinea, and North ...

Journal: Journal of Tethys 2017

Forty two Paleocene benthic foraminiferal species of the Midway Formation in the Gulf Coastal Plain of Texas, USA were firstly investigated by Plummer (1927), and its paleogeographic distribution in some other countries in the Tethyan province were recorded: North America (USA, Mexico), South America (Argentina), Europe (North Sea Basin, Spain, France, Italy, Czech Republic, Bulgaria), North Af...

Faced with the challenges of healthcare reform, skills and new capabilities are needed to support the reform and it is of crucial importance in Africa where shortages affects the health system resilience. Edwards et al provides a good example of the challenge of implementing a mentoring program in one province in a sub-Saharan country. From this example, various aspects of strengthening the cap...

Journal: :journal of crop protection 2015
farid allache yakouta bouta fatma demnati

the objective was to study the population development of tuta absoluta (meyrick, 1917) on tomato in greenhouse conditions at droh. the trial assessed the occurrence of t. absoluta adults from the month of october to may in traps; a low numbers is noted. the high numbers recorded (170 adults/greenhouse) are caught at the end of crop cycle. the mean number of capture is 22 adults/ week/ trap. reg...

Journal: :journal of crop protection 2013
gloria valentine nakato fen beed idd ramathani ivan rwomushana fina opio

banana xanthomonas wilt is a systemic disease of banana plants. we investigated the risk of spreading xanthomonas campestris pv. musacearum (xcm) through asymptomatic mature bunches. samples of banana fingers and rachis from markets within kampala, uganda and at border points of uganda with dr congo, tanzania, rwanda and kenya were tested for the presence of xcm through recovery of the bacteriu...

Journal: :international journal of health policy and management 2015
mohammad karamouzian celestin hategekimana

Journal: :iranian journal of environmental sciences 0
ayodeji oluleye department of meteorology and climate science, federal university of technology, akure, nigeria m. ochei department of meteorology and climate science, federal university of technology, akure, nigeria

this study utilizes a decade long (2005-2014) monthly data of total column tropospheric ozone (tcto) in dubson units to evaluate the spatial and temporal trend of lao over some major cities of west africa, namely lagos, accra, niamey, abuja, bamako, dakar, agadez, conakry, kano, and ouagadougou which are either capital cites or major commercial hubs, where the population ranges from 0.09 millio...

2012
PAUL S. SCHOPF ROBERT J. BURGMAN

A simple mechanism is offered that accounts for a change in the long-term (decadal scale) mean of ocean temperatures as the El Niño–Southern Oscillation (ENSO) amplitude changes. It is intended as an illustration of a kinematic effect of oscillating a nonlinear temperature profile with finite-amplitude excursions that will cause the Eulerian time mean temperature to rise (fall) where the curvat...

2016
Colin C Walker

CactusWorld 2016 Vol. 34 (3) Aloe is a large genus of over 500 species (Carter et al, 2011) and even today that number continues to increase. Of these, a very small number of species, perhaps no more than 20, are unusual in having hairy flowers. These are concentrated in southern Arabia and the Horn of Africa. In respect of Saudi Arabia, for example, Collenette (1999) records 22 species of Aloe...

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