نتایج جستجو برای: north africa

تعداد نتایج: 261394  

Journal: :mathematics interdisciplinary research 2016
abraham albert ungar

abraham ungar is professor in the department of mathematicsat north dakota state university.after gaining his b.sc. (1965) and m.sc. (1967) from the hebrew university inpure mathematics and ph.d. (1973) from tel-aviv universityin applied mathematics, he held apostdoctoral position at the university of toronto (1974).ungar moved from toronto to pretoria where he held the position of asenior rese...

2013
Tom J. Coulthard Jorge A. Ramirez Nick Barton Mike Rogerson Tim Brücher

Human migration north through Africa is contentious. This paper uses a novel palaeohydrological and hydraulic modelling approach to test the hypothesis that under wetter climates c.100,000 years ago major river systems ran north across the Sahara to the Mediterranean, creating viable migration routes. We confirm that three of these now buried palaeo river systems could have been active at the k...

Introduction: Travel health practice and research in Egypt lag behind both needs and demands. This study was done in two parts to assess travel health knowledge, attitude, and practice (KAP) among Egyptian travelers. Methods: This survey was conducted at the departure halls of Cairo International Airport and included 1500 travelers to Africa (excluding No...

2017
Ratiba Baazizi Mana Mahapatra Brian Donald Clarke Khatima Ait-Oudhia Djamel Khelef Satya Parida

BACKGROUND Peste des petits ruminants (PPR) is a contagious disease listed by the World Organisation for Animal health (OIE) as being a specific hazard. It affects sheep, goats, and wild ungulates, and is prevalent throughout the developing world particularly Asia, the Middle East, and Africa. PPR has been targeted for eradication by 2030 by the Food and Agriculture Organization of the United N...

شعیب, اشفق, قندهاری, کاویان,

Introduction: Atherosclerotic stenosis of carotid territory is the most common cause of ischemic stroke. A higher frequency of intracranial arterial stenosis has been reported in Africa and the Far East. Methods: 304 geriatric ischemic stroke patients admitted in Mackenzie hospital, Canada and the same number of geriatric ischemic stroke patients with similar sex ratio admitted in Valie-Asr ho...

2011
Jane Harrigan

This paper provides an historical overview of aid flows to North Africa. It assesses the aid allocation process and argues that past aid flows to the region have been heavily influenced by donor political interests. This has reduced the effectiveness of aid which, with the exception of Tunisia, has not been associated with sustained economic growth. The Arab Spring provides an opportunity to re...

2016
Hanan Afzan Boutaïna Belqat

All published records for the 49 species of moth flies known from North Africa are reviewed and discussed: Morocco (27 species), Algeria (33 species), Tunisia (18 species) and Egypt (five species). In addition, records of seven species of Psychodinae new to the fauna of Morocco are added, of which three are new mentions for North Africa (Table 1) and one is a new record for Egypt. Telmatoscopus...

2011
Chris Jones

On 4 May 2011, the European Commission published a new Communication on Migration [1]. In light of the on-going political turmoil in North Africa and the subsequent impact on southern EU member states – notably Italy and Malta – the Communication outlines current and future proposals with regard to migration issues. However, it is not limited to policy areas affected by the situation in North A...

It is estimated globally 3.2 million children were living with HIV in 2014, that mostly in sub-Saharan Africa. However, the majority of them infected to HIV from their mothers during pregnancy, during delivery or breastfeeding (1). Antiretroviral therapy (ART) use during and after pregnancy is essential for prevention of mother-to-child transmission (PMTCT) of HIV (2).  In the absence of any in...

2016
Lotfi Cherni Andrew J. Pakstis Sami Boussetta Sarra Elkamel Sabeh Frigi Houssein Khodjet‐El‐Khil Alison Barton Eva Haigh William C. Speed Amel Ben Ammar Elgaaied Judith R. Kidd Kenneth K. Kidd

OBJECTIVES North Africa has a complex demographic history of migrations from within Africa, Europe, and the Middle East. However, population genetic studies, especially for autosomal genetic markers, are few relative to other world regions. We examined autosomal markers for eight Tunisian and Libyan populations in order to place them in a global context. MATERIALS AND METHODS Data were collec...

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