排序方式: 共有15条查询结果,搜索用时 31 毫秒
1.
Giant reed for selenium phytoremediation under changing climate 总被引:1,自引:0,他引:1
Hassan R. El-Ramady Neama Abdalla Tarek Alshaal Ahmed S. Elhenawy Mohamed S. Shams Salah E.-D. A. Faizy El-Sayed B. Belal Said A. Shehata Mohamed I. Ragab Megahed M. Amer Miklós Fári Attila Sztrik József Prokisch Dirk Selmar Ewald Schnug Elizabeth A. H. Pilon-Smits Samia M. El-Marsafawy Éva Domokos-Szabolcsy 《Environmental Chemistry Letters》2015,13(4):359-380
2.
Waled Morsy El-Senousy Ahmed Mohammed El-Sayed Ragab Eman Mohammed Abd El Hamed Handak 《Food and environmental virology》2015,7(2):132-141
The objective of this study is to compare the prevalence of rotaviruses groups A and C in Egyptian children and aquatic environment. From 110 stool specimens of children with acute diarrhea and using RT-PCR, 35 samples (31.8 %) were positive for human rotavirus group A and 15 samples (13.6 %) were positive for human rotavirus group C. From 96 samples collected from Zenin wastewater treatment plant over a 2-year period (November 2009–October 2011) and using RT-PCR, rotavirus group A was detected in (4/24) 16.7 %, (5/24) 20.8 %, (4/24) 16.7 %, and (4/24) 16.7 %, while rotavirus group C was detected in (2/24) 8.3 %, (3/24) 12.5 %, (3/24) 12.5 %, and (0/24) 0 % in raw sewage, after primary sedimentation, after secondary sedimentation, and after final chlorination, respectively. Moreover, from 96 samples collected from El-Giza water treatment plant over a 2-year period (November 2009–October 2011), rotavirus group A was detected in (7/24) 29.2 %, (6/24) 25 %, (5/24) 20.8 %, and (3/24) 12.5 %, while rotavirus group C was detected in (3/24) 12.5 %, (1/24) 4.2 %, (1/24) 4.2 %, and (0/24) 0 % in raw Nile water, after sedimentation, after sand filtration, and after final chlorination, respectively. Using SYBR Green real-time RT-PCR, the number of human rotavirus group A genome or infectious units was higher than rotavirus group C. VP6 sequence analysis of the RT-PCR positive rotavirus group C samples revealed that four clinical specimens and three environmental samples showed similar sequences clustered with Moduganari/Human Nigerian strain AF 325806 with 98 % homology, and two clinical specimens and one environmental sample showed similar sequences clustered with Dhaka CB/Human Bangladesh strain AY 754826 with 97 % homology. 相似文献
3.
M. T. H. Ragab M. H. K. Abdel‐Kader J. A. Ivany 《Journal of environmental science and health. Part. B》2013,48(2):301-304
Abstract Carbofuran was applied over seeded rutabaga cv. York and residues (corrected for recovery) of carbofuran, 3‐hydroxy‐ and 3‐ketocarbofuran in the harvested roots averaged 0.15, 0.23 and 0.07 ppm in peel and 0.09, 0.14 and 0.05 ppm in pulp, respectively. Samples were extracted by hot acid digestion, partitioned in methylene chloride and cleaned up on Florisil. The 3‐hydroxy‐carbofuran was ethoxylated and the compounds were converted into their dinitrophenyl ethers and analysed by electron capture gas chromatography using 3% OV‐3 column. 相似文献
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5.
Seddeek MK Sharshar T Ragab HS Badran HM 《Journal of environmental monitoring : JEM》2005,7(8):767-770
Natural radioactivity concentrations due to the coal mining in Gabal El-Maghara, North Sinai, Egypt, were determined using gamma-ray spectroscopy. Coal, water and soil samples were investigated in this study. The (226)Ra, (232)Th and (40)K activity concentrations in coal before extraction were 18.5 +/- 0.5, 29.5 +/- 1.2 and 149.0 +/- 8.4 Bq kg(-1), respectively. These concentrations were reduced to 18-22% after extraction due to the clay removal of the coal ore. The activity contents of the water and soil samples collected from the surrounding area did not show any evidence of enhancement due to the mining activities. Absorbed dose rate and effective dose equivalent in the mine environment were 29.4 nGy h(-1) and 128.0 microSv a(-1), respectively. The measured activity concentrations in the mine environment and the surrounding areas (5 km away from the mine) are similar to that found in other regions in North and South Sinai. Based on the measurements of gamma-ray emitting radionuclides, the mine activity does not lead to any enhancement in the local area nor represents any human risk. 相似文献
6.
A. MacPhee S. Gaul M. T. H. Ragab 《Journal of environmental science and health. Part. B》2013,48(2):183-193
Abstract Permethrin at 0.4 kg a.i./ha controlled blueberry thrips Frankliniella vaccinii Morgan. There was no plant damage and crop yield was notably increased. Permethrin was extracted from berries with acetone, partitioned in hexane, cleaned‐up on Florisil column and analysed by the electron capture gas chromatography using a 3% OV‐210 column. No permethrin residues were found in the berries. The relative retention times of cis‐, and trans‐permethrins to aldrin were 10.3 and 12.1, respectively. The absence of permethrin from berries was further confirmed by TLC. 相似文献
7.
Elfadadny Ahmed El-Husseiny Hussein M. Abugomaa Amira Ragab Rokaia F. Mady Eman A. Aboubakr Mohamed Samir Haney Mandour Ahmed S. El-Mleeh Amany El-Far Ali H. Abd El-Aziz Ayman H. Elbadawy Mohamed 《Environmental science and pollution research international》2021,28(36):49447-49466
Environmental Science and Pollution Research - Cancer, a major public health problem, is one of the world’s top leading causes of death. Common treatments for cancer include cytotoxic... 相似文献
8.
Mahmoud A. Saleh Alaa Kamel Awad A. Ragab Gamal El‐Baroty Abdel Moneim M. Afify Joseph Jones 《毒物与环境化学》2013,95(3-4):429-444
Two hundred ninety‐two mother's milk samples were collected during 1994 from ten Egyptian governorates representing rural, metropolitan, and newly reclaimed desert areas. The samples were analyzed for 14 organochlorine insecticides and metabolites using electron capture gas chromatography and confirmed by gas chromatography/mass spectrometry (GC/MS). The overall samples average showed that the most abundant organochlorine insecticide residues were p,p'‐DDE, α‐endosulfan, β‐HCH and, p,p’‐DDT. Residues in the range of not detectable to less than 14μg/l whole milk were recorded for α‐HCH, heptachlor, heptachlor epoxide, aldrin, dieldrin, endrin endrin aldehyde and p,p'‐DDD. The percentage of samples exceeding the acceptable daily intake for children (ADIs) set by the FAO/WHO ranged from 19% to 44% in all governorates included in the study except the governorate of Minia in which only 2.6% of the samples exceeded the ADI values. The insecticides exceeding ADI values are mostly heptachlor and heptaclor epoxide (ADI = 3.12 μg/1 whole milk). 相似文献
9.
Diab Mohamed Ragab Essa Fadl Abdelmonem Abou-Taleb Fawzy Shaban Omara Zakaria Mohamed 《Environmental science and pollution research international》2021,28(39):54260-54281
Environmental Science and Pollution Research - Access to freshwater is narrowed down every day in the world. Many diseases of human beings are related to water supplies contaminated or unpurified.... 相似文献
10.
Elshanbary Alaa Ahmed Awad Alaa Abdelsameia Abdelsalam Alaa Ibrahim Islam H. Abdel-Aziz Walid Darwish Youssef Bahaaeldin Isa Alaa Saad Drid Boutheyna Mustafa Marwa Gamal Allam Radwa Hamdy Abo Ali Amira A. Nourelden Anas Zakarya Ragab Khaled Mohamed AlGwaiz Hussah I. M. Awaji Aeshah A. Germoush Mousa O. Albrakati Ashraf Piscopo Marina Ghaboura Nehmat Zaazouee Mohamed Sayed 《Environmental science and pollution research international》2022,29(32):47931-47941
Environmental Science and Pollution Research - Sentinel lymph node (SLN) sampling is important for evaluating the nodal stage of breast cancer when the axillary nodes are clinically free of... 相似文献