检索结果-南通市图书馆

Seminal plasma anti-Müllerian hormone level correlates with semen parameters but does not predict success of testicular sperm extraction （TESE）

引用

Asian Journal of Andrology 2007年第2期9卷 265-270页

作者： Taymour Mostafa Medhat K. Amer Guirgis abdel-Malak taha abdel nsser Wael Zohdy Shedeed Ashour Dina El-Gayar Hosam H. Awad Andrology ＆ Sexology Department Faculty of Medicine Cairo University Cairo 11553 Egypt Adam International Clinic Mohandesseen Giza 12411 Egypt Artificial Insemination and Embryo Transfer Department Reproductive Research Institute Alharam Giza 12111 Egypt Chemical Pathology Department Faculty of Medicine Cairo University Cairo 11553 Egypt

Aim： To assess seminal plasma anti-Müllerian hormone （AMH） level relationships in fertile and infertile males. Methods： Eighty-four male cases were studied and divided into four groups： fertile normozoospermia （n = 16）, oligoastheno- teratozoospermia （n = 15）, obstructive azoospermia （OA）（n = 13） and non-obstructive azoospermia （NOA）（n = 40）. Conventional semen analysis was done for all cases. Testicular biopsy was done with histopathology and fresh tissue examination for testicular sperm extraction （TESE） in NOA cases. NOA group was subdivided according to TESE results into unsuccessful TESE （n = 19） and successful TESE （n = 21）. Seminal plasma AMH was estimated by enzyme linked immunosorbent assay （ELISA） and serum follicular stimulating hormone （FSH） was estimated in NOA cases only by radioimmunoassay （RIA）. Results： Mean seminal AMH was significantly higher in fertile group than in oligoasthenoteratozoospermia with significance （41.5±10.9 pmol/L vs. 30.5±10.3 pmol/L, P 〈 0.05）. Seminal AMH was not detected in any OA patients. Seminal AMH wascorrelated positively with testicular volume （r = 0.329, P = 0.005）, sperm count （r = 0.483, P = 0.007）, sperm motility percent （r = 0.419, P = 0.021） and negatively with sperm abnormal forms percent （r = -0.413, p = 0.023）. Nonsignificant correlation was evident with age （r = -0.155, P = 0.414） and plasma FSH （ r = -0.014, P = 0.943）. In NOA cases, seminal AMH was detectable in 23/40 cases, 14 of them were successful TESE （57.5%） and was undetectable in 17/40 cases, 10 of them were unsuccessful TESE （58.2%）. Conclusion： Seminal plasma AMH is an absolute testicular marker being absent in all OA cases. However, seminal AMH has a poor predictability for successful testicular sperm retrieval in NOA cases.

关键词： seminal plasma anti-Müllerian hormone spermatogenesis azoospermia testicular sperm extraction

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Finite element modeling assumptions impact on seismic response demands of MRF-buildings

引用

Earthquake Engineering and Engineering Vibration 2018年第4期17卷 821-834页

作者： Shehata E abdel Raheem Ahmed K abdel Zaher Ahmed MA taha Civil Engineering Department Engineering College Taibah University Civil Engineering Department Faculty of Engineering Assiut University

Recent seismic events have raised concerns over the safety and vulnerability of reinforced concrete moment resisting frame ＂RC-MRF＂ buildings. The seismic response of such buildings is greatly dependent on the computational tools used and the inherent assumptions in the modelling process. Thus, it is essential to investigate the sensitivity of the response demands to the corresponding modelling assumption. Many parameters and assumptions are justified to generate effective structural finite element（FE） models of buildings to simulate lateral behaviour and evaluate seismic design demands. As such, the present study focuses on the development of reliable FE models with various levels of refinement. The effects of the FE modelling assumptions on the seismic response demands on the design of buildings are investigated. the predictive ability of a FE model is tied to the accuracy of numerical analysis; a numerical analysis is performed for a series of symmetric buildings in active seismic zones. The results of the seismic response demands are presented in a comparative format to confirm drift and strength limits requirements. A proposed model is formulated based on a simplified modeling approach, where the most refined model is used to calibrate the simplified model.

关键词： RC-MRF buildings design codes provisions seismic design finite element modeling modeling assumptions response demands

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Analysis of Chaotic Dynamics in a Two-Dimensional Sine Square Map

引用

Chinese Physics Letters 2010年第2期27卷 33-36页

作者：徐杰隆克平 FOURNIER-PRUNARET Daniele taha abdel-Kaddous CHARGE Pascal School of Communication and Information Engineering University of Electronic Science and Technology of China Chengdu 611731 LATTIS INSA Toulouse University 135 avenue de Rangueil 31077 Toulouse 4 France

We study an N-dimensional system based upon a sine map, which is related to the simplified model of an opto-electronic system. The system behavior is analyzed with the tools of nonlinear dynamics （bifurcations in the parameter plane, critical manifolds, basins of attraction, chaotic attractors）. Our study relies on a two-dimensional system （N=2）. It is interesting that this system shows the existence of bounded chaotic orbits, which can be considered for secure transmissions.

关键词： Statistical physics and nonlinear systems

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chaos generator for secure transmission using a sine map and an RLC series circuit

引用

Science China(Information Sciences) 2010年第1期53卷 129-136页

作者： CHARG Pascal FOURNIER-PRUNARET Danièle taha abdel-Kaddous LATTIS EA no.4155 INSAToulouse University135 avenue de Rangueil 31077 Toulouse Cedex 4France

This paper deals with the model analysis of a chaos generator for secure transmission. In this proposed system discrete value signals and continuous value signals are used together and are interacting one another. The main advantage of this system is that a discrete chaotic map can be implemented in the digital circuit with many parameters, and initial condition can be set with a great accuracy. Also, the problem of periodicity which is always encountered in any fully discrete systems can be avoided. A chaotic behavior study of the system is then provided, in which bifurcation phenomena are explained and chaotic attractors are shown. Finally, an asymptotic chaotic behavior of the proposed system is derived.

关键词： chaos generator nonlinear map hybrid circuit secure transmission

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Thyme oil inclusion levels in a rabbit ration: Evaluation of productive performance, carcass criteria and meat quality under hot environmental conditions

引用

Animal Nutrition 2018年第4期4卷 410-416页

作者： Ahmed A.A.abdel-Wareth Eman M.M.taha Karl-Heinz Südekum Jayant Lohakare Department of Animal and Poultry Production Faculty of Agriculture South Valley University Department of Food Science and Technology Faculty of Agriculture South Valley University Institute of Animal Science University of Bonn Department of Agriculture-Animal Science University of Arkansas at Pine Bluff

The aim of this study was to determine the impact of thyme essential oil supplementation in rabbit rations on performance, carcass criteria, and meat quality under hot environmental conditions. A total of 75, 4-week-old Californian male rabbits were assigned to 5 dietary treatments until 12 weeks of *** rabbits were reared in an open house system(38C average ambient temperature and 26% to 35%relative humidity). Treatments were as follows: unsupplemented standard ration, negative control(CON); standard ration supplemented with 1.50 g/kg olive oil as carrier, positive control(POS);POS t 50 mg/kg thyme oil(TO1); POS t 100 mg/kg thyme oil(TO2); and POS t 150 mg/kg thyme oil(TO3). Dietary thyme oil up to 150 mg/kg improved(P < 0.001) feed intake and growth performance in comparison to CON. The highest average daily gain and most efficient feed conversion ratio(linear,P < 0.001 and quadratic, P < 0.001) were found for TO1 followed by TO2, TO3 and POS, *** incorporation of thyme oil improved(P < 0.001) carcass criteria and decreased(P < 0.001) perirenal and scapular fat without any side effects on internal organs. Notably, the water holding capacity of rabbit meat was greater(P < 0.001), and the lipid oxidation was lower(P < 0.01) in rabbits fed treated rations compared with CON. Differences were also recorded in oxymyoglobin and metmyoglobin contents in rabbit meat among treatments. In conclusion, thyme oil of a specified composition and to be added to a rabbit ration up to 100 mg/kg using 1.50 g/kg olive oil as a carrier can be used as an efficient feed additive for improving productive performance of rabbits under hot environmental conditions.

关键词： Antioxidant Essential oil Meat characteristics Nutrition Production

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effect of upright and ambulant positions versus lying down during the active first stage of labor on birth outcomes among nulliparous women:randomized controlled clinical trial

引用

Frontiers of Nursing 2020年第3期7卷 239-248页

作者： Heba abdel-Fatah Ibrahim Hanan Ibrahim Ibrahim Said Wafaa taha Ibrahim Elgzar Obstetrics and Woman Health Nursing department Benha UniversityBenhaKalubia 13741Egypt Maternity and Childhood Nursing Department Nursing CollegeNajran UniversityNajran 66251Kingdom of Saudi Arabia Obstetrics and Gynecologic Nursing department Damanhour UniversityDamanhour 22511Egypt

Objective:To examine the effect of upright and ambulant positions versus lying down during the active first stage of labor on birth outcomes for nulliparous ***:This is a randomized controlled clinical trial conducted at the delivery department of Damanhour Educational Institute,El Behira Governorate,*** study sample involved 150 parturient women equally divided into intervention and control groups using randomization block *** researchers used four tools for data collection:Demographic data interview schedule,World Health Organization Partograph,Apgar’s score,to evaluate neonatal outcomes,and visual analogue pain intensity *** the study group,the parturient women were encouraged to assume one of the upright positions or ambulating around the bed so as to maintain the pelvis in vertical plane as far as possible for 20-25 min for every 1 *** control group received routine hospital care,which includes lying down in *** SPSS 23.0 was used to analyze the ***:Significant differences(P0.05)were observed between both groups in term of emergency cesarean birth rates,oxytocin use,and neonatal ***:This study proves that upright and ambulant positions significantly enhance uterine contractility,cervical dilatation,and fetal head descent and reduce the first stage duration.

关键词： birth outcomes first stage of labor lying down upright position

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Health Literacy: Prevalence among Elderly Care Givers and Its Impact on the Frequency of Elderly Hospitalization and Elderly Health Related Quality of Life

引用

Advances in Aging Research 2014年第5期3卷 380-387页

作者： Tomader taha abdel Rahman Geriatrics Medicine Department Faculty of Medicine Ain Shams University Cairo Egypt

Caring for the elderly is an extremely lonely and frustrating vigil. The care giver has the responsibility of caring for an elderly one to the myriad decisions on different topics such as diabetes care or cancer treatment. Care givers with low levels of health literacy have less health knowledge, worse management of chronic disease and lower use of preventive services. This study was conducted to determine the prevalence of health literacy among elderly care givers and its impact on the frequency of elderly hospitalization and elderly health related quality of life (QOL). The study was carried out on 200 elderly patients and their corresponding care givers. Rapid Estimate of Adult Literacy in Medicine (REALM) and Newest Vital Sign (NVS) were used to assess caregivers’ health literacy. Assessment of the elderly health related QOL was done by the use of short form-12 health survey (SF-12). The results were as followed, in elderly patients;92 were males and 108 were females. The mean elderly age was 69.4 ± 8.8. The mean age of caregivers was 42.1 ± 12.9 years. The prevalence of inadequate health literacy among elderly caregivers was 75.0%. There were significant associations between care givers, health literacy and the frequency of elderly hospitalization (p = 0.001), duration of hospital stay (p = 0.009), and the elderly health related QOL (p = 0.001). The study concluded that inadequate health literacy is a problem among elderly care givers in Egypt. Healthcare professionals must be made aware of this problem, which is to provide simplified educational materials to elderly care givers to maximize elderly care.

关键词： Care Givers Health Literacy Health Related Quality of Life Frequency of Elderly Hospitalization

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Prevalence of Hyperuricemia among Hospitalized Elderly Patients and Its Association with Metabolic Syndrome

引用

Advances in Aging Research 2014年第4期3卷 329-337页

作者： Tomader taha abdel Rahman Geriatrics Medicine Department Faculty of Medicine Ain Shams University Cairo Egypt

There are few data available on the prevalence of hyperuricemia among elderly and its possible association with metabolic syndrome (MetS) so the aim of this study was to assess prevalence of hyperuricemia among hospitalized elderly patients as well as to assess its association with MetS. Cross sectional data from 200 hospitalized elderly patients were analyzed and the results were as follows: the prevalence of hyperuricemia was 21.0% in elderly men and 15.1% in elderly women. Multivariate logistic regression analysis revealed that BMI ≥ 30 (p = 0.031, OR = 1.1), hypertension (p = 0.019, OR = 1.8), high triglycerides level (p = 0.018, OR = 2.9) and hyperuricemia (p = 0.023, OR = 3.7) were independently associated with MetS. The study concluded that the prevalence of hyperuricemia among hospitalized elderly patients was 21.0% in elderly men and 15.1% in elderly women. There was an independent association between hyperuricemia and metabolic syndrome.

关键词： Hyperuricemia Metabolic Syndrome Elderly

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chaotic Dynamics in a Sine Square Map： High-Dimensional Case （N ≥ 3）

引用

Chinese Physics Letters 2010年第8期27卷 47-50页

作者：徐杰隆克平 FOURNIER-PRUNARET Danièle taha abdel:Kaddous CHARGE Pascal School of Communication and Information Engineering University of Electronic Science and Technology of China Chengdu 611731 LATTIS INSA Toulouse University 13-5 avenue de Rangueil 31077 Toulouse 4 Prance

We study an N-dimensional system based on a sine square map and analyze the system behaviors of cases of dimension N ≥ 3 with the tools of nonlinear dynamics. In the three-dimensional case, bifurcations in the parameter plane, invariant manifolds, critical manifolds and chaotic attractors are studied. Then we extend this study to the cases of higher dimension （N 〉 3） to understand generalized properties of the system. The analysis and experimental results of the system demonstrate the existence of bounded chaotic orbits, which can be considered for secure transmissions.

关键词：

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Dysexecutive Performance of Elderly Patients with Chronic Hepatitis C Virus Infection

引用

Advances in Aging Research 2014年第4期3卷 285-292页

作者： Tomader taha abdel Rahman Marwa abdel Azeem abdel Guaad Ahmad Kamel Mortagy Department of Geriatrics Medicine Faculty of Medicine Ain Shams University Cairo Egypt

Chronic infection with hepatitis C virus (HCV) is one of the most important causes of chronic liver disease, which can progress to cirrhosis and hepatocellular carcinoma (HCC). It is well established that advanced forms of the disease are accompanied by overt and global cognitive deficits (hepatic encephalopathy) but now there is a growing evidence that the alterations in cerebral function in patients with chronic HCV infection may appear long before the development of severe liver cirrhosis, it has been hypothesized that it is related to a direct effect of HCV on the brain;or the neurotoxic effect of HCV-related systemic inflammation. The purpose of the study was to assess the possible existence of executive dysfunction in chronic HCV infected patients. One hundred elderly patients aged 60 years and above agreed to participate in this study;50 patients were HCV positive (cases) and 50 patients were HCV negative (controls). All participants were subjected to the following: diagnosis of HCV by detection of HCV antibodies using ELISA technique, non-invasive assessment of liver condition, and evaluation of executive functions using 5 neuropsychological tests. The study showed that there was a significant difference between cases and controls regarding 2 executive function tests related to the phonological loop component of working memory among HCV positive patients. The study concluded that chronic HCV infection is accompanied by dysexecutive performance.

关键词： Elderly Executive Functions HCV

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：