检索结果-南通市图书馆

Feeding Study with Bt Corn (MON810: Ajeeb YG) on Rats: Biochemical Analysis and Liver Histopathology

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food and Nutrition Sciences 2014年第2期5卷 185-195页

作者： Eman mohamed Abdo omar mohamed Barbary Omayma El-Sayed Shaltout Food Science Department Faculty of Agriculture (Saba-Basha) Alexandria University Alexandria Egypt.

Bt corn “MON810: Ajeeb YG” produces delta endotoxins in the whole plant due to the genetic modification process. The chemical analysis of this variety showed significant differences from its conventional counterpart “Ajeeb”. Further, feeding studies on rats were designed to complete assessing the safety of “MON810: Ajeeb YG”. Three groups of rats (6 males and 6 females’ rats/group) were fed on control diet, non-Bt corn and Bt corn for 1.5 months and 3 months. After 1.5 months, 3 males and 3 females from each group were sacrificed, and after another 1.5 months, 3 males and 3 females from each group and their offspring were sacrificed. Histopathological examination, blood haematology and serum biochemical analysis were determined. Results indicated significant differences among the tested parameters in the three groups especially Bt group. Severe changes in the liver of Bt group after 3 months were observed.

关键词： MON810: Ajeeb YG Feeding Study Blood Biochemical Analysis Haematology Histopathology

Value of Pre- and Post-Treatment Platelet Indices in Patients with Immune Thrombocytopenic Purpura

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Biosciences and Medicines 2018年第9期6卷 11-24页

作者： Iman mohamed omar Soha Abuelela Noha Emam Clinical Pathology Department Faculty of Medicine Ain Shams University Cairo Egypt

Introduction: Immune thrombocytopenic purpura (ITP) is an acquired disorder characterized by isolated thrombocytopenia. There is no “gold standard” test that can establish the diagnosis of primary ITP. Therefore, the diagnosis is one of exclusion and is based on patient history, physical examination, complete blood count, and blood smear review. Platelet indices are biomarkers of platelet activation, allowing extensive investigations focusing on the diagnostic and prognostic values in various diseases without extra-costs. Mean platelet volume (MPV), platelet distribution width (PDW) and plateletcrit (PCT) were investigated aiming at evaluating the correlation between pre- and post-treatment values in ITP patients. The sensitivity and specificity of platelet indices for assessment of their predictive value for treatment response were also evaluated. Methods: Fifty newly diagnosed primary ITP patients were selected from the Hematology Clinics of Ain Shams University Hospitals and classified into pediatric and adult groups. Platelet count, MPV, PDW, PCT have been recorded for all pre and post-treatment CBC samples using Beckman Coulter LH750 analyzer. Results: In pediatrics post-treatment MPV and PDW were significantly decreased while PCT was increased when compared to their values at the time of presentation (P < 0.01). The same results were obtained in adult patients, except for PDW which did not attain any significance. A significant correlation was found between pre-treatment values of these platelet indices and treatment response in pediatrics, while no significance was found between pre-treatment PDW and treatment response in adults. Conclusion: Increased pre-treatment MPV and PDW, and decreased PCT can provide diagnostic and predictive value for treatment response in ITP patients.

关键词： ITP Treatment Response Platelet Indices Mean Platelet Volume Platelet Distribution Width Plateletcrit

The Impact of Maritime Accidents on the Autonomous Ships Proving Their Missions in the Future

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Shipping and Ocean Engineering 2021年第2期11卷 64-73页

作者： Salah Eldin Farag omar mohamed Fouad Farid Maritime Safety Institute Arab Academy for ScienceTechnology and Maritime TransportEgypt

The main issue is figuring out how to make it work within the *** of relying on crew,shipping companies could make more money,by reducing manpower expenses and increasing cargo transport volumes,while the entire industry could become safer by eliminating the human factor that contributes so much to *** threats and errors will arise,but they can be as a minimum equalized or even reduced compared to the existing ones,so we can have more reliable ships without putting lives at *** main goal is to identify the most common ships accidents type,as well as the most common types of ships that cause accidents,which could have an impact on the future of autonomous *** is also a way to gain access to human error,education and training,and how to deal with weaknesses in the future of these *** research is based on a descriptive approach,as this methodology is the most capable of providing a comprehensive picture of the efficiency of the new technology.

关键词： Autonomous ships education and training human error

The Growth of Sub-Saharan Africa in the 2000s:Estimation of the Contributions of Factor Accumulation and Factor Productivity

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Economics World 2021年第2期9卷 43-59页

作者： Robert Dauda Korsu mohamed Ben omar Ndiaye Njala University FreetownSierra Leone University Cheikh Anta Diop(UCAD) DakarSenegal

Sustained economic growth is a key source of poverty alleviation and growth that is driven more by productivity than the quantity of factors of production is useful for long-term inclusive growth and poverty reduction,which is needed in Sub-Saharan *** paper sought to investigate the relative roles of capital and labour as factors of production and their productivity in the growth process of Sub-Saharan Africa using annual data from 2000 to 2018.A production function was estimated,following the construction of data for capital stock using the perpetual inventory *** production function was estimated by applying the instrumental variables(IV)to the two-way fixed effects model,using clustered standard *** results show that the share of capital and labour in production were 0.14 and 0.86 ***,labour and their productivity contributed 24.7%,51.1%and 24.2%respectively to real GDP growth during the period 2001 to *** efforts in building the productivity of capital and labour are therefore required in Sub-Saharan *** good governance,the legal framework,political stability,expanded access to quality education and affordable quality healthcare,greater openness towards technological progress are therefore imperative.

关键词： growth factor productivity Sub-Saharan Africa two-way fixed effects

Severity of Coronary Artery Disease by Coronary CT Angiography in Relation to Left Ventricular Diastolic Function

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Cardiovascular Diseases 2020年第4期10卷 235-245页

作者： Wassam Eldin Hadad Elshafey Walaa Fareed Abdelaziz mohamed Seleem mohamed Osama mohamed Abdallah omar Cardiology Department Menoufia University Al Minufya Egypt National Heart Institute Embaba Cairo Egypt

Objectives:?The aim of this study is to evaluate the relationship between severity of CAD by coronary mutlislice computed tomography scan and the degree of diastolic function Methods:?The study consisted of 80 patients who underwent both coronary CTA and TTE within 1 year with no identifiable intervening cardiovascular event in National?Heart?Institute and Menoufia?University?Hospitals. All patients were subjected to detailed medical history, physical examination, full electrocardiography study including tissue Doppler imaging on mitral annulus, MSCT coronary angiography and different laboratory investigation as CBC, creatinine, lipid profile. Results:?From 80 patients who have done both echocardiography examination and MSCT coronary angiography, the CT scan results were 38 patients with non-obstructive coronary artery disease and 42 patients with obstructive CAD, higher number of patients with diastolic dysfunction with higher values of E/E’, medial e’, lateral e’, LAVI (left atrial volume index) and TRV (tricuspid regurge velocity) were found in the group with obstructive coronary artery disease.?Conclusion:?Our study showed that diastolic dysfunction is more prevalent in patients with obstructive coronary artery disease with higher grade of diastolic dysfunction.

关键词： Coronary Artery Disease Diastolic Dysfunction MSCT Coronary Angiography

Psychiatric Aspects of Infectious Diseases

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Psychiatry 2014年第3期4卷 202-217页

作者： Amir Mufaddel Abdelaziz A. Omer mohamed omar Salem Al-Ahli Hospital Doha Qatar Community Mental Health Services Behavioural Sciences Institute Al Ain Hospital UAE University of Khartoum Khartoum Sudan

Psychiatric symptoms can be associated with several systemic and central nervous system infections and they can be the initial presenting symptoms, occurring in the absence of neurological symptoms in some disorders as in some cases of viral encephalitis. They could also be part of the clinical picture in other cases such as psychosis or mood symptoms secondary to brucellosis or toxoplasmosis. Late-onset neuropsychiatric complications may also occur several years following the infection such as in the case of subacute sclerosing panencephalitis due to measles. Some Infectious diseases may have possible etiological role for major psychiatric disorders, based on yet unconfirmed reports for viral infectious diseases (e.g. Influenza virus and HSV-1) which are thought to have risk for developing schizophrenia and psychosis. Neuropsychiatric adverse effects can occur due to drugs (e.g. mefloquine, interferon-alpha) that are used for treatment of infectious diseases. Psychiatric symptoms can also be reactivated resulting from chronic, complicated and serious infections such as HIV that can lead to depression, anxiety or adjustment disorders, although CNS involvement can also be a possible etiological factor. Patients suffering from primary and severe psychiatric disorders are at increased risk of contracting infection;that is mainly related to high risk behaviors in patients with mania or schizophrenia. It is also important to consider that the co-occurrence of psychiatric symptoms and infection can be incidental (i.e. infectious diseases can occur in psychiatric patients regardless of the above mentioned factors). Early identification of the underlying etiology for organic/secondary psychiatric symptoms is essential for appropriate intervention and early treatment of the primary condition that could be the etiology of psychiatric symptoms so as to avoid unnecessary long-term psychiatric treatment and to avoid complications of possible misdiagnosis or delayed diagnosis of

关键词： Bacterial Infections Viral Infections Parasitic Infections Psychiatric Symptoms Neuropsychiatric Features

髓内钉与锁定钢板治疗股骨转子下骨折的疗效分析

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

髓内钉与锁定钢板治疗股骨转子下骨折的疗效分析

作者： Sayid omar mohamed Ahmed 吉林大学

学位级别：硕士

背景:股骨粗隆下骨折是股骨近端最具挑战性的损伤之一,因为股骨的肌肉和骨骼解剖复杂。他们往往具有双峰年龄特征,年轻人通常是由高能量损伤引起的,老年人是单纯跌倒造成的,原因是骨质疏松。虽然在这些损伤的外科治疗方面已经取得了一... 详细信息

背景:股骨粗隆下骨折是股骨近端最具挑战性的损伤之一,因为股骨的肌肉和骨骼解剖复杂。他们往往具有双峰年龄特征,年轻人通常是由高能量损伤引起的,老年人是单纯跌倒造成的,原因是骨质疏松。虽然在这些损伤的外科治疗方面已经取得了一些进展,但是内植物的选择仍具有争议,而且与手术相关的发病率仍然相当高。目标:本研究的主要目的是评估两组经手术治疗的成人股骨转子下骨折患者的并发症发生率和术后疗效。一组使用髓内钉,另一组使用钢板。方法;将我院从1999年9月至2017年10月行髓内钉或钢板治疗的42例股骨粗隆下骨折患者的临床及影像学资料整理收集后进行分析。平均年龄为54.86岁。33例采用钉内固定,9例采用切开复位钢板内固定。评估并发症发生率、住院时间、切口长度以及其他术前、术中和术后的特点,以确定两者之间的差异结果:总结分析四十二例病例,其中钉组33例,钢板组9例。两组在年龄、性别、损伤机制、损伤侧、骨折类型及其他损伤方面是相似的。髓内钉治疗组患者的住院时间短(P=0.011),切口较小(P<0.001)。两组并发症发生率无显著性差异(P=0.387);但术后并发症发生率钢板治疗组(9例中1例,11.1%)明显高于髓内钉治疗组(33例中1例;3%)。结论:成人股骨粗隆下骨折既可以用髓内钉进行固定,也可以用钢板进行固定。虽然我们的研究不能发现两者在并发症发生率上有显著的统计学差异。但钢板治疗组的住院时间较长。

关键词：股骨粗隆下术后转归术后并发症髓内钉钢板

Overweight and obesity in hip and knee arthroplasty:Evaluation of 6078 cases

同方学位论文库评论

在线全文

同方学位论文库

学校读者我要写书评

暂无评论

World Journal of Orthopedics 2015年第1期6卷 137-144页

作者： Daniel Guenther Stefan Schmidl Till O Klatte Harald K Widhalm mohamed omar Christian Krettek Thorsten Gehrke Daniel Kendoff Carl Haasper Orthopaedic Department Helios-Endo Klinik Hamburg Trauma Department Hannover Medical School (MHH) Department of Trauma Handand Reconstructive SurgeryUniversity Medical Center Hamburg-Eppendorf Department of Trauma Surgery Medical University of Vienna

AIM: To evaluate a possible association between thevarious levels of obesity and peri-operative characteristics of the procedure in patients who underwent endoprosthetic joint replacement in hip and knee joints. METHODS: We hypothesized that obese patients were treated for later stage of osteoarthritis, that more conservative implants were used, and the intraand perioperative complications increased for such patients. We evaluated all patients with body mass index(BMI) ≥ 25 who were treated in our institution from January 2011 to September 2013 for a primary total hip arthroplasty(THA) or total knee arthroplasty(TKA). Patients were split up by the levels of obesity according to the classification of the World Health Organization. Average age at the time of primary arthroplasty, preoperative Harris Hip Score(HHS), Hospital for Special Surgery score(HSS), gender, type of implanted prosthesis, and intra-and postoperative complications were ***: Six thousand and seventy-eight patients with a BMI ≥ 25 were treated with a primary THA or TKA. Age decreased significantly(P < 0.001) by increasing obesity in both the THA and TKA. HHS and HSS were at significantly lower levels at the time of treatment in the super-obese population(P < 0.001). Distribution patterns of the type of endoprostheses used changed with an increasing BMI. Peri- and postoperative complications were similar in form and quantity to those of the normal population. CONCLUSION: Higher BMI leads to endoprosthetic treatment in younger age, which is carried out at significantly lower levels of preoperative joint function.

关键词： Adiposity Total knee arthroplasty Total hip arthroplasty Obesity Overweight Prosthesis

Relation between Carotid Artery Plaques Characteristics as a Predictor of Haemodynamics Changes after Carotid Artery Stenting

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neuroscience & Medicine 2021年第1期12卷 12-21页

作者： Hany Mahmoud Zaki ei-Dine mohamed Khaled Elewa Tamer Mahmoud Elsayed Roushdy omar mohamed Hashim mohamed Hamdy Ibrahim Neurology Department Faculty of Medicine Ain Shams University Cairo Egypt Railway Hospital Ministry of Health Cairo Egypt

Objectives: To study relationship between carotid artery plaques characteristics and haemodynamic changes after carotid stenting. Patients and Methods: This observational prospective (pilot) study included 20 patients—who underwent CAS. The study was carried out in Ain shams university hospitals—Railway hospital (ERMED) and Suez insurance hospital from December 2018 to February 2020. Inclusion criteria, Symptomatic (defined as amaurosis fugax, TIA, Minor stroke or Major stroke) stenosis > 70%. Asymptomatic stenosis > 80% (accidentally discovered during pre-operative assessment for CABG and during full assessment for irrelevant stroke). Results: Regarding to plaque character for degree of stenosis, calcification and ulceration revealed significantly higher degree of stenosis in hemodynamic events group (P = 0.024). On the other hand, that there was no statistically significant difference between the two groups as regard calcification, ulceration and lesion location. Conclusion: The study revealed that HI is a common occurrence following CAS procedures and significantly higher degree of stenosis in hemodynamic events group. Plaque shape, ulcerations hardly affect haeodynamic instability after carotid stenting.

关键词： Carotid Artery Plaques Carotid Stenting Haemodynamics Carotid Stenosis