نتایج جستجو برای: river nile

تعداد نتایج: 94276  

2006
Luke Oman Alan Robock Georgiy L. Stenchikov Thorvaldur Thordarson

[1] Nile River records indicate very low flow following the 1783–1784 Laki volcanic eruption, as well as after other high-latitude volcanic eruptions. As shown by climate model simulations of the Laki eruption, significant cooling ( 1 to 3 C) of the Northern Hemisphere land masses during the boreal summer of 1783 resulted in a strong dynamical effect of weakening the African and Indian monsoon ...

2009
Thomas Scott Pey-Yi Lee Kerry Paggett Ryan Carney Stan Husted Walter Koenig

West Nile virus has undergone an unprecedented rate of infection in North America, sweeping from New York to California in four years. It attacked an exceptionally broad range of hosts/vectors over a broad geographic area. In 2004, the California Department of Health Services received approximately 98,000 reports of dead birds, representing tens of millions of birds killed by West Nile virus in...

Introduction: This Study has was  carried out to measure and detect the natural occurred radionuclide content including 226Ra, 232Th and 40K in the  Nile River sediments at various locations in Upper Egypt, from Aswan to El-Minya. Additionally, we determine the absorbed dose rate, the annual effective dose equivalent, and excess lifetime cancer risk also has been calculated. Material and Metho...

Journal: :The Onderstepoort journal of veterinary research 2005
B M Ahmed A M El-Hussein A O El-Khider

Five species of ixodid ticks were found in a cross-sectional survey in which 200 sheep were examined for ticks in River Nile Province, Sudan. Hyalomma anatolicum anatolicum was the predominant species (73.6%), whereas ticks belonging to the Rhipicephalus sanguineus group (14.7%), Rhipicephalus evertsi evertsi (9.1%), Rhipicephalus simus (2%) and Hyalomma dromedarii (0.5%) were also found. The m...

2005
Y. A. Mohamed B. J. J. M. van den Hurk H. H. G. Savenije W. G. M. Bastiaanssen

This paper presents the result of the regional coupled climatic and hydrologic model of the Nile Basin. For the first time the interaction between the climatic processes and the hydrological processes on the land surface have been fully coupled. The hydrological model is driven by the rainfall and the energy available for evaporation generated in the climate model, and the runoff generated in t...

2013
Tosson A. Morsy Nahla M. Shoukry

The Egyptian Government plan to move in 25 years from an inhabited area of 6-25% of the total Nile land area to a larger one to compensate the huge increase of Egyptian populations. The decision was recently made to begin a development project at Toshka, on the western bank of the River Nile, Upper Egypt. Toshka depression is more or less close to Wadi Halfa of Sudan. Therefore, it was necessar...

2015
Wael A. Omar Wafai Z. A. Mikhail Hanaa M. Abdo Tarek A. Abou El Defan Mamdouh M. Poraas

The present work aims to evaluate seasonal metal pollution along Greater Cairo sector of the River Nile, Egypt, using wild Nile tilapia, Oreochromis niloticus, as bioindicator and to conduct a risk assessment for human consumers. Greater Cairo is the largest populated area along the whole course of River Nile with a wide range of anthropogenic activities. Effects of metal pollution on fish body...

Journal: :The Onderstepoort journal of veterinary research 2012
Ahmed A Elghali Shawgi M Hassan

In this review, we collate information about ticks identified in different parts of the Sudan and South Sudan since 1956 in order to identify gaps in tick prevalence and create a map of tick distribution. This will avail basic data for further research on ticks and policies for the control of tick-borne diseases. In this review, we discuss the situation in the Republic of South Sudan as wel...

Journal: :African health sciences 2002
Emmanuel I Odongo-Aginya Lorenz Grigull Ulrich Schweigmann Tom Loroni-Lakwo Jochem H H Enrich Bruno Gryseels Ekkehard Doehring

An epidemiological cross sectional study of Schistosoma mansoni was conducted in two hyper endemic fishing villages of Rhino Camp and Obongi both in West Nile district in northern Uganda in 1991 and 1992. People with various water contacts were registered. A small group of civil servants and clergies with less water contact in the river Nile were studied for control of infection and morbidity. ...

2017
Laurival A Vilas-Boas Selwyn A Headley Kátia B Gonçalves Josiane A Scarpassa Lucienne G Pretto-Giordano

The Streptococcus iniae UEL-Si1 strain was isolated from diseased Nile tilapia within the Paranapanema River Basin, Northern Paraná, Brazil. This is an emerging infectious disease agent of fish from Brazil, and sequencing of the complete genome is fundamental to understanding aspects relative to pathogenesis, infection, epidemiology, and immunity.

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