Results 1 to 10 of about 3,659 (205)

Endoscopic-assisted epitympanic approach: a feasible technique for cochlear implantation

open access: yesThe Egyptian Journal of Otolaryngology, 2021
Background The aim of this study is to discuss the detailed surgical steps of the endoscopic-assisted epi-tympanic approach (EAEA) to the round window (RW) as a safe, precise, and reliable approach for cochlear implantation (CI) and also to evaluate ...
Mohamed Mostafa Badr-El-dine   +3 more
doaj   +2 more sources

DETECTION OF eaeA AND hlyA GENES IN ESCHERICHIA COLI-CAUSING DIARRHOEA IN YOUNG CALVES BY MULTIPLEX PCR [PDF]

open access: yesVeterinary Medical Journal - Giza, 2003
E.coli was isolated from the faeces of 28/31 (90.3%) diarrhoeic and 9/11 (81.8%) apparently healthy calves. E. coli O157 was the most prevalent serotype, detected from 5/31 diarrhoeic calves (16.1%). No O157 E.
R SELEIM, SAHAR MOHAMED
doaj   +2 more sources

Occurrence of virulence genes in multidrug-resistant Escherichia coli isolates from humans, animals, and the environment: One health perspective. [PDF]

open access: yesPLoS ONE
Escherichia coli is one of the critical One Health pathogens due to its vast array of virulence and antimicrobial resistance genes. This study used multiplex PCR to determine the occurrence of virulence genes bfp, ompA, traT, eaeA, and stx1 among 50 ...
Edwin M James   +6 more
doaj   +2 more sources

Ensemble machine learning method for δ18O prediction in groundwater [PDF]

open access: yesScientific Reports
Groundwater δ18O interpretation in arid regions is challenging due to complex recharge, salinization, and limited datasets. We applied ensemble machine learning, Random Forest, Lasso, and Gradient Boosting, to predict δ18O using hydrochemical and spatial
Faten. A. Mohamed   +2 more
doaj   +2 more sources

Development of direct CO2 absorption system for radiocarbon dating and bio-based carbon determination in biogenic-synthetic products [PDF]

open access: yesNuclear Technology and Radiation Protection, 2022
This work presents a development of a new radiocarbon dating system based on CO2 and liquid scintillation counting. The system is flexible enough to be applied in different fields such as radiocarbon dating (up to about 32 000 years span ...
Sadek Mostafa A.   +2 more
doaj   +1 more source

Groundwater quality and health assessments based on heavy metals and trace elements content in Dakhla Oasis, New Valley Governorate, Egypt

open access: yesWater Science, 2022
This study is searching for some crucial physicochemical properties of groundwater samples collected from eleven outlets in Dakhla Oasis, Egypt, including the pH-value, electrical conductivity (EC), total dissolved solids (TDS), in addition to the ...
Hosam M. Saleh   +3 more
doaj   +1 more source

Adsorption and separation of Cs(I) and Ba(II) from aqueous solution using zinc ferrite-humic acid nanocomposite

open access: yesScientific Reports, 2023
Reclaimable adsorbents have an essential role in removing radionuclides from waste streams. Herein, zinc ferrite-humic acid ZFO/HA nanocomposite was synthesized for effective cesium and barium adsorption.
M. I. A. Abdel Maksoud   +3 more
doaj   +1 more source

Synthesis and biological evaluation of [131I]iodocarvedilol as a potential radiopharmaceutical for heart imaging

open access: yesBMC Chemistry, 2023
The optimization of the radiolabeling yield of carvedilol with iodine-131 was described. Dependence of the labeling yield of [131I]iodocarvedilol on the concentration of carvedilol, chloramine-T content, pH of the reaction mixture and reaction time was ...
M. A. Motaleb   +3 more
doaj   +1 more source

Ageing management of research reactors instrumentation using neutron radiography applications

open access: yesAlexandria Engineering Journal, 2022
This paper introduces the applications of neutron radiography and tomography to improve maintenance and aging management programs in research reactors. Egypt second research reactor (ETRR-2) has an advanced neutron radiography/tomography facility and it ...
Magdy M. Zaky   +3 more
doaj   +1 more source

Prevalence of E. coli and detection of virulent genes by multiplex PCR in meat products [PDF]

open access: yesBenha Veterinary Medical Journal, 2015
A total of 100 meat products samples of minced meat, kofta, beef burger and sausage (25 samples ofeach), weight of each sample10gm were collected from different shops and supermarkets in Cairogovernorate, to be investigated for the presence of E.
Samaa Nadim   +4 more
doaj   +1 more source

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