ahmed_ahmed4

Ahmed Roshdi Hamed Ahmed

Professor - Professor of Pathology

Faculty of medicine

Address: Sohag, Naser City.

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Publications Which contain the keyword: Egypt


2018-09-14 16:38:08 Keywords Nitrates, Groundwater, Nile Valley, health impact, Sohag, Egypt,
ASSESSMENT OF NITRATES AND THEIR HEALTH IMPACT IN QUATERNARY GROUNDWATER AQUIFER OF SOHAG GOVERNORATE, EGYPT
The present study is destined to measure the nitrate levels of groundwater in Sohag Governorate aiming to determine their possible sources and evaluate their environmental and health impact. 17% of the analyzed samples have NO3-levels go over the MAL. Potentially harmful levels of NO3-exceeding nearly four times higher than the maximum allowable limit (MAL) for drinking water (45 mg/l) were ... Read more

2018-09-14 16:31:02 Keywords Groundwater contamination, Quaternary aquifer, Qena, Egypt,
Degradation of groundwater quality of quaternary aquifer at Qena, Egypt
Qena area, Upper Egypt has a limited water resources represented by the River Nile, irrigation canals and groundwater resources. The Quaternary groundwater aquifer is the main water source in the study area. Urbanization and agricultural activities in the study area constitute the main pollution sources of groundwater. Pollution sources in the study area include mixing from wastewater and agrochemicals from ... Read more

2018-09-07 00:24:41 Keywords Egypt, stroke,
.case fatalities rate Southern Egypt Stroke Study
INTRODUCTION Stroke now ranks as the second leading cause of death and the first cause of morbidity allover the world. Among all the neurological diseases of adult life, stroke clearly ranks first in frequency and importance, at least 50% of the neurological disorders in a hospitalized patients are of this type [1- 3]. Despite advances in medical care of stroke ... Read more

2018-09-04 09:33:04 Keywords Egypt, Eastern Desert, Amphibolite,
Petrographic and geochemical studies on amphibolites occurrence in the Eastern Desert, Egypt.
Amphibolite from Barud, Meatiq and Abu Markhat ares located in the Central Eastern Desert of Egypt were investigated. Geologically, the amphibolites occur as intercalating lenses, slabs and elongated bands in the infrastructural granite-gneisses. Geochemical data revealed that the analysed amphibolites are of igneous protoliths derived from basalts and basaltic-andesites. They display tholeiitic, calc-alkaline and low-K tholeiites affinites and are thus ... Read more

Petrochemistry of the Pan-African basement rocks from Humr Waggat area, Central Eastern Desert, Egypt.
The basement suite of the Humr Waggat area is consists of Pan-African serpentinites, calc-alkaline metavolcanics, metagabbros and post orogenic granites. geochemically, the serpentinites are of hurzburgite parentage and enrcihed in Ni which bears non-consanguineous relationships with the tectonically incorporated metavolcanics and metagabbros which of calc-alkaline geochemistry, formed in an island arc setting. Their chemical data shows their common genetic origin. ... Read more

Seasonal variation and enrichment of metals in sediments of Rosetta branch, Nile River, Egypt
This study investigated heavy metal pollution in sediments of the Rosetta branch of the River Nile of Egypt to quantify the toxic distribution potential of metals into the surrounding environment. Sediment samples were collected at 9 sites during in four seasons. Organic matter and total metal concentrations were determined using loss on ignition and inductively coupled plasma spectrometry, respectively. Principal ... Read more

2018-09-02 23:16:58 Keywords taxonomiy, systematics, Rubiaceae, morphology, Galium, fruits, Egypt, distribution,
Two subspecies of Galium setaceum (Rubiaceae) in Egypt
The systematics, distribution and morphology of Galium setaceum (Rubiaceae) in Egypt are described in the article. A full discussion is provided of all morphological characters, systematic treatment and nomenclature based on macro characters, such as habit, distribution, leaf, inflorescence, peduncle, pedicel, flowers, and micro characters of trichomes. G. setaceum subsp. decaisni is identified for the flora of Egypt for the ... Read more

2018-09-02 13:48:42 Keywords fluoride, Groundwater, Luxor, Egypt, Quaternaru aquifer, Nile Valley,
Fluoride in Quaternary groundwater aquifer, Nile Valley, Luxor, Egypt.
The occurrence of fluoride in ground water is the focus of the public and has attracted the attention of many scientists all over the world due to its importance in public health. Deficiency or increase of fluoride uptake is considered a public health problem due to the narrow permissible limit which should not exceed 1.5 mg/l according to the World ... Read more

2018-09-02 13:45:01 Keywords water consumption, demand forecasting, Luxor, Egypt,
Water use at Luxor, Egypt: Consumption analysis and future demand forecasting.
Water resources in Egypt are becoming scarce and the demand for clean drinking water supply is one of the most important priorities of the Egyptian government in recent years. Analyzing water use and future demand forecasting is a primitive clue for water demand management. Water in Luxor is used for agricultural, residential, institutional, commercial, and touristic purposes. The results of ... Read more