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Valorization of sustainable vegetable oil deodorizer distillate as a novel fatliquor

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Collagen and Leather 2023年第3期5卷 60-72页

作者： El-Shahat H.A.Nashy Adel Gabr Abdel-Razek Minar Mahmoud M.Hassanein ghada A.abo-Elwafa Hamed Elsayed Chemical Industries Research Institute National Research CentreDokkiCairo 12622Egypt Department of Fats and Oils National Research CentreDokkiCairo 12622Egypt

The deodorizer distillate(DD)is a byproduct of vegetable oil processing industry and is rich in functional bioactive *** study aimed to employ phosphorylation modification for DD to produce a new sustainable *** bioactive ingredients in DD,namely fatty acids,sterols,and tocopherols,were determined by using HPLC and *** results revealed that the DD sample contained a high percentage of unsaturated fatty acids(72.3%)and high levels ofγandδ-tocopherols(54.8%and 31.60%,respectively).Mechanical parameters(tensile strength,elongation at break,and tear strength)of leather were improved after being treated with the prepared fatliquor ***,SEM showed that the texture of the fatliquored leather had been remarkably ***,the fatliquored leather possessed effective antibacterial effect against the specified+ve,-ve bacteria,and Candida albicans *** strength,fullness,soft handle,and elasticity of leather were all improved,and the grain of leather was protected from becoming loose after drying.

关键词： Vegetable oil Deodorizer distillate Bioactive components Fatliquor Phosphorylation Chrome tanned leather

The Electromagnetic Field Propagation in a Spherical Core

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Journal of Electromagnetic Analysis and Applications 2012年第12期4卷 481-484页

作者： Osama M. abo-Seid ghada M. Sami Mathematic Department Faculty of Science Ain shams University Cairo Egypt. Mathematic Department Faculty of Science Kafr El-Sheikh University Kafr El-Sheikh Egypt

A simple and explicit derivation for the electric and magnetic fields in the ferromagnetic cores has been studied. An improved model for analyzing the distribution of electric and magnetic fields in a toroidal core is given. This leads to a basis system for the theoretical analysis of iron loss in the magnetic cores, so, the theoretical results have been evaluated. A method is used to perform numeric calculations of the magnetic field produced by the eddy current and displacement current due to the electric field which shield the magnetic flux from the inner portion of the core cross section. The results obtained from this work could be used to evaluate the skin effect in the conductors of a winding.

关键词： Electromagnetic Field Wave Propagation Magnetic Flux Magnetic Cores

Down Protein C and S Antigen Could Be Predictor of Mortality Outcome in Critical Egyptian COVID-19 Illness

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Journal of Biosciences and Medicines 2022年第3期10卷 190-202页

作者： Nadia El Menshawy ghada Elsaid Tarek abo Zeid Nora A. Farag Clinical Pathology Department Hematology Unit Faculty of Medicine Oncology Center Mansoura University Mansoura Egypt Internal Medicine Specialized Medicine Hospital Mansoura University Mansoura Egypt Clinical Hematology Faculty of Medicine Oncology Center Mansoura University Mansoura Egypt Clinical Pathology Department Hematology Unit Faculty of Medicine Mansoura University Delta University Gamasa Egypt

Background: One of the most serious morbidity and mortality features in COVID-19 is thrombo-embolic manifestation with disturbed hemostasis in natural anticoagulant. Protein S plays a critical role in cytokine storming and acts as cross talk between immune status and coagulation process. So, we aimed to address its role in addition to protein C in severity and outcome of disease, with its role in vaccinated people by AstraZeneca. Methods: The present study was conducted on 70 COVID-19 positive by real-time PCR. 40 of patients had moderate symptoms of respiratory, 30 cases were admitted into ICU of Mansoura University Hospital, some of them under mechanical ventilator. In addition to 40 healthy volunteers after first dose of vaccinated AstraZenka as reference, assessment of protein C&S antigen was done by ELIZA. Results: Significant increase in total leucocytic count in COVID-19 than vaccinated volunteer with significant reduction in absolute lymphocytosis, increased neutrophilia. First significant observation was higher MPV in COVID-19 than vaccinated, in addition to significantly higher C-reactive protein in severe cases than moderate and vaccinated. Prominent interesting finding in our study was significant reduction in Protein C&S in severe cases than moderate and vaccinated. Logistic regression analysis revealed that both could be predictor of mortality outcome as CRP in COVID-19 illness. Conclusion: There was significant reduction in protein C&S in severe cases than moderate and vaccinated. Regression analysis shows that could be predictor of mortality as well as CRP, D-dimer. Large extended study and follow up are needed to assess the incidence of thromboembolism and role of protein C&S in different variety protocols of vaccination programs.

关键词： Protein C S COVID-19 AstraZeneca Vaccine

The Relationship between abo Blood Group Type and the COVID-19 Susceptibility in Qatif Central Hospital, Eastern Province, Saudi Arabia: A Retrospective Cohort Study

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Open Journal of Internal Medicine 2020年第2期10卷 232-238页

作者： ghada Ali Aljanobi Alya Hassan Alhajjaj Fatimah Lateef Alkhabbaz Jumana Mansour Al-Jishi Internal Medicine Department Qatif Central Hospital Qatif KSA

Introduction: It has been found that the viral infection is linked to the abo blood group. Limited studies investigated the relationship of the abo blood group and susceptibility to COVID-19 infection. Objective: To investigate the association between the abo blood group and the COVID-19 susceptibility. Material & Methods: The study is a retrospective cohort study. It included all hospitalized confirmed COVID-19 patients in Qatif central hospital, Eastern province, Saudi Arabia. We included both genders and people who are older than 14 years of age. The study was conducted in the period between 15th March, and 15th April, 2020. Results: Our sample consists of 72 patients;we found a percentage distribution of 23.62%, 33.33%, 9.72%, and 33.33% for blood groups A, B, AB and O, respectively. Our results showed significantly increased risk for AB blood groups (P Conclusion: Our findings suggest that among confirmed COVID-19 patients, patients with AB blood group have higher susceptibility while patients with O blood group have lower susceptibility to COVID-19 infection. Our study has limitations and further studies are needed.

关键词： abo Group Saudi Qatif COVID-19