检索结果-南通市图书馆

机械传动 1980年第4期 44-56页

作者： nadir Patir H.S.Cheng 陈同元

本文用有限元法解出了在热平衡状态运转中的直齿轮的温度分布,并指出了各种无量纲参数对体积温度的影响。一经估算出放热系数和产生的摩擦热,就可以用所提供的表预计齿轮的体积温度。本文还概述了估算放热系数和摩擦热的理论结果。

关键词：齿轮放热系数轮齿啮合齿面有限元法数值分析

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

协同肿瘤研究临床试验信息系统SOA建模

集成技术 2012年第2期1卷 40-45页

作者：孙明瑞臧天仪 nadir K.Salih 哈尔滨工业大学计算机科学与技术学院哈尔滨150001

开放标准的肿瘤信息系统在不断发展,以此应对现代肿瘤临床试验带来的挑战。本文提出面向服务的软件范例,用于衍生临床试验信息管理系统,支持多机构协同肿瘤研究。提出的方案将临床试验(元)模型和基于WSRF(Web Services Resource Framewo... 详细信息

开放标准的肿瘤信息系统在不断发展,以此应对现代肿瘤临床试验带来的挑战。本文提出面向服务的软件范例,用于衍生临床试验信息管理系统,支持多机构协同肿瘤研究。提出的方案将临床试验(元)模型和基于WSRF(Web Services Resource Framework)的面向服务体系结构(Service-Oriented Architecture,SOA)相结合,并且应用早期临床试验进行评估。尽管主要目的是针对肿瘤研究,但也适用于具有相似信息模型的其它领域。

关键词：面向服务的体系结构 Web服务元模型 Web服务资源框架

在线全文

学校读者我要写书评

暂无评论

马来西亚人视盘面积的研究(英文)

国际眼科杂志 2008年第8期8卷 1514-1517页

作者： nadir A M Ali V Subrayan S C Reddy 马来亚大学医学院眼科

目的:评估马来西亚主要的三个种族群(马来人,中国人和印度人)的视盘参数,并且研究视盘参数和性别、眼内压、眼轴长度之间的关系。方法:本研究包括了122例244眼,均有清晰的眼介质,其中61例为开角型青光眼患者,另外61例为非青光眼个体。... 详细信息

目的:评估马来西亚主要的三个种族群(马来人,中国人和印度人)的视盘参数,并且研究视盘参数和性别、眼内压、眼轴长度之间的关系。方法:本研究包括了122例244眼,均有清晰的眼介质,其中61例为开角型青光眼患者,另外61例为非青光眼个体。使用蔡司FF450Plus眼底照相机对视盘参数和视盘面积进行放大校正测量。三个种族群之间的差异用方差分析检验,而诸如性别、眼内压、眼轴长度这些因素和视盘大小之间的关系通过皮尔森双变量相关分析检验。结果:总体上平均垂直视盘直径为(1.96±0.20)mm,水平视盘直径为(1.84±0.20)mm,视盘面积为(2.84±0.56)mm2。与马来人和中国人相比,印度人有较大的视盘面积。然而,差异没有统计学意义。结论:马来西亚人的视盘面积比高加索人(白种人)大。在马来西亚三个种族群中,印度人视盘面积最大,但是没有统计学意义。

关键词：视盘直径视盘面积马来人印度人中国人

Clinico-Epidemiological Characteristics and Survival Outcomes of COVID-19 Infection in Kassala, Eastern Sudan

在线全文

学校读者我要写书评

暂无评论

Advances in Infectious Diseases 2023年第1期13卷 96-108页

作者： Abdualmoniem O. Musa Mushal Allam Elhadi A. Ahmed Nouh S. Mohamed Mohamed H. Ahmed Abubakr Omer Tajeldin M. Abdallah nadir Abuzeid Department of Microbiology Faculty of Medical Laboratory Sciences University of Kassala Kassala Sudan Department of Microbiology Faculty of Medical Laboratory Sciences University of Gezira Wad Madani Sudan General Administration of Medical Laboratories Ministry of Health Kassala Sudan Department of Genetics and Genomics College of Medicine and Health Sciences United Arab Emirates University Al Ain United Arab Emirates Department of Molecular Biology Faculty of Medical Laboratory Sciences Nile University Khartoum Sudan Department of Medicine and HIV Metabolic Clinic Milton Keynes University Hospital NHS Foundation Trust Milton Keynes UK School of Medical Sciences Örebro University Örebro Sweden Faculty of Medicine University of Khartoum Khartoum Sudan Department of Internal Medicine Faculty of Medicine University of Kassala Kassala Sudan Department of Microbiology Faculty of Medical Laboratory Sciences Omdurman Islamic University Omdurman Sudan

Introduction: Severe acute respiratory syndrome coronavirus2 (SARS-CoV-2) represents a major health problem worldwide. Thus, early detection and appropriate management of the virus will influence the outcome of the disease. This study aimed to investigate the epidemiological characteristics and survival outcomes of patients with COVID-19 infection in Kassala, Eastern Sudan. Methods: A cross-sectional hospital-study was conducted among patients visiting Kassala teaching hospital with suspicion of COVID-19 infection. A structured questionnaire was used to gather clinical and socio-demo- graphic information from COVID-19 patients. Nasopharyngeal specimens and blood samples were collected and tested to confirm the diagnosis of COVID-19 infection using RT-PCR. Results: A total of 371 patients were enrolled in the study from September 2020 to January 2021, with mean age ± SD was 42.9 ± 19.9. The prevalence of COVID-19 infection was estimated at 61.7%. The majority were males 159 (69.4%), of university-level education, 96 (49.7%), and urban residents, 175 (9.7%). The most common symptoms were fever 215 (93.9%), cough 188 (82.1%), headache 179 (78.2%), and shortness of breath 154 (67.2%). Overall all mortality was reported as 16%. Older age group with the age ≥ 70, P P = 0.020, diabetes mellitus P = 0.029 were significantly associated with high case fatality. Conclusion: This study demonstrated that older age, male gender, laboratory tests (leukocytosis, lymphopenia, low Hemoglobin and high CRP) and various comorbid conditions significantly increase the disease severity and mortality. Therefore, attention should be paid to preventive measures to reduce the considerable impacts of the disease.

关键词： COVID-19 Infection Epidemiology Outcome Sudan

Endoscopic ultrasound with biopsy of omental mass for cholangiocarcinoma diagnosis in cirrhosis

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 Gastrointestinal Endoscopy 2011年第6期3卷 124-128页

作者： Nathaniel S Rial Kevin B Gilchrist Jeff T Henderson Achyut K Bhattacharyya Thomas D Boyer Abdul nadir John T Cunningham Department of Internal Medicine The University of ArizonaOro Valley BioVMel and Enid College of Public HealthCollege of Medicine Department of Pathology The University of ArizonaCollege of Medicine Arizona Digestive Health Pathology Laboratory Head of Department of Pathology Director of Surgical PathologyThe University of ArizonaCollege of Medicine Chairman of Department of Internal Medicine Department of GastroenterologyDirector of Arizona Liver InstituteThe University of ArizonaCollege of Medicine Department of Gastroenterology The University of ArizonaCollege of Medicine

In this report,a patient had a previous diagnosis of cholangiocarcinoma with an extended cholecystectomy. Three years later,he was evaluated for recurrent ascites. The patient had several large volume paracentesis, without evidence of malignant ***, endoscopic ultrasound(EUS)with fine needle aspiration (FNA)of both lymph and omental nodules was *** the lymph nodes were negative for malignancy, the omental nodule was interrogated with multiple antibodies and was found to be positive for neoplasia. EUS with FNA can safely be used in patients with cirrhosis to spare the patient invasive evaluation such as exploratory laparotomy(ex-lap)for diagnosis and staging of cholangiocarcinoma.

关键词： Cholangiocarcinoma Endoscopic ultrasound Omental nodule Fine-needle aspiration

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

基于图论的信息系统评价研究

数学的实践与认识 2020年第13期50卷 122-130页

作者：高学东纳迪尔北京科技大学东凌经济管理学院北京100083

本文针对信息系统评价中涉及的成本和收益难以理解和预测的问题,开展信息系统评价方法研究.已有的信息系统评价的文献中,用于信息系统评价指标可以归纳为:财务、非财务、显性和隐性方面.本文在对信息系统评价的文献进行梳理的基础上,建... 详细信息

本文针对信息系统评价中涉及的成本和收益难以理解和预测的问题,开展信息系统评价方法研究.已有的信息系统评价的文献中,用于信息系统评价指标可以归纳为:财务、非财务、显性和隐性方面.本文在对信息系统评价的文献进行梳理的基础上,建立了包括内部环境和外部环境的信息系统评价指标体系,运用图论处理评价信息系统中的隐性因素,采用网页排序算法计算隐性因素的权重.研究结果不仅给出信息系统的评价方法,而且有助于理解信息系统环境.文章最后给出了本文提出方法应用的一个示意性例子.

关键词：信息系统评价图论网页排名算法因素权重

Effect of Phytase Enzyme on Organs Growth Performance and Blood Profile of Broiler

在线全文

学校读者我要写书评

暂无评论

Advances in Enzyme Research 2021年第3期9卷 37-49页

作者： Fida Noor Baloch Hafeez Noor Baloch Asad Ullah Khan Naseebullah Marri Baloch Ismail Anwer Baloch nadir Khan Baloch Ayaz Qadir Qambrani Abdul Khalique Samejo Faculty of Animal Husbandry and Veterinary Sciences Sindh Agriculture University Tandojam Pakistan Shanxi Agricultural University Taigu China University of Veterinary & Animal Sciences Lahore Pakistan

Enzymes which are biological catalyst composed of amino acids with minerals and vitamins. The use of enzymes has many benefits in poultry diets include not only enhanced feed conversion and bird performance but also reduced output of excreta problems of environment. The present research work was conducted to evaluate the effect of phytase enzyme on growth performance and blood profile of broiler. Birds were arbitrarily separated into four groups, i.e. Group A (control) was offered 0 g/kg, 0.05 g/kg (group B), 0.075 g/kg (group C) and 0.025 g/kg (group D) phytase enzyme provided in broiler feed. Parameters which were selected in present research work as, feed intake, live body weight, feed conversion ratio, growth performance and blood profile. Results showed that the maximum chicken body weight was noted in group C and feed intake was minimum in group C, as compared to other groups. Feed conversion ratio was significantly (p < 0.05) higher in group C, followed by other groups the non-significantly variance founded respectively, the highest weight of liver, gizzard, heart, intestine were noted in treated group C comparatively, highest spleen weight was in group B and in group A (control) the minimum weight of spleen was noted and the average blood profile of broiler chicks in different groups, the white blood cells was significantly higher in group D followed by group A, group B and C. Red blood cells was significantly (P < 0.05) better in group C. Haemoglobin was significant differences in different groups of trial. A significant (P < 0.05) difference in Packed cells volume in group A followed by group B, C and D. Total protein in group A was minimum followed by group B, C and D, respectively. From the present study, it was concluded that supplementation of 0.075 g/kg phytase enzyme has a better effect on growth performance and blood profile of broiler.

关键词： Broiler Birds Phytase Enzyme Growth Performance and Blood Profile of Broiler

Management of Pregnant Women with Invasive Cervical Cancer about Ten Cases

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 Cancer Therapy 2018年第9期9卷 740-754页

作者： K. Diabaté H. Bakkali A. Lachgar S. nadir T. Kebdani B. K. El Gueddari N. Benjaafar Radiotherapy Department National Institute of Oncology Mohamed V University Rabat Morocco

The purpose of this study was to update the management of invasive cervical cancers diagnosed during pregnancy. Patients and methods: This study was performed retrospectively at radiotherapy department of National Institute of Oncology Rabat Morocco. From 01/04/2005 to 31/05/2010, ten patients with invasive cervical cancer during pregnancy were included. Results: Ten patients were included in the study. The staging was as follow: stage IIIB (n = 4);stage IIB (n = 2) and stage IB2 (n = 4). The radical abdominal hysterectomy with pelvic lymphadenectomy was performed in five patients;a therapeutic interruption of pregnancy was performed in four patients. One pregnancy has resulted in the birth of a living child (by cesarean section). Adjuvant treatment was concomitant chemoradiotherapy followed by low dose rate (LDR) brachytherapy in three patients;adjuvant concomitant chemoradiotherapy followed by high dose rate (HDR) brachytherapy was performed in four patients;a HDR brachytherapy was done in one patient. Two patients have received an exclusive external radiotherapy. After a median follow-up of 4 years (2 - 7 years), there were bone and lung metastases in one patient. Nine patients are alive after completed treatment. Conclusion: Our series focused on ten patients with invasive cervical cancer during pregnancy. Management is complex and requires discussion in a multidisciplinary meeting. Routine screening of cervical cancer and awareness are the key point to improve the treatment and survival rate of patients. The management of all cases is according to international recommendations.

关键词： Cervical Cancer Pregnancy Treatment

应用新的B超检查参数测量随访脉络膜转移癌的变化(英文)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

国际眼科杂志 2007年第3期7卷 609-612页

作者： nadir A M Ali S C Reddy Christina Ng V Subrayan 马来亚大学医学院眼科马来亚大学医学院肿瘤科

目的:报道应用新的B超检查参数(最大交叉截面积)测量评估随访患者的脉络膜转移肿瘤的大小。方法:报告1例脉络膜转移癌患者,在随访中应用B超测量其肿瘤的高、基底和最大交叉截面积。结果:一位62岁华人老年妇女,已知为肺非小细胞癌患者,... 详细信息

目的:报道应用新的B超检查参数(最大交叉截面积)测量评估随访患者的脉络膜转移肿瘤的大小。方法:报告1例脉络膜转移癌患者,在随访中应用B超测量其肿瘤的高、基底和最大交叉截面积。结果:一位62岁华人老年妇女,已知为肺非小细胞癌患者,表现为右眼无痛性视物模糊。被诊为双眼脉络膜转移癌(右眼进展期,左眼初期),双眼视力良好。首次化疗后右眼肿瘤明显减小,但最后一轮化疗结束后6wk即出现增长。患者又进行了放疗和另一轮的化疗后右眼肿瘤大小没有变化。左眼肿瘤大小在随后的2a内没有变化。双眼维持着最佳矫正视力(右6/9,左6/6)。对右眼肿瘤的大小进行了连续B超测量评估。结论:超声检测在随访中是可重复的,并与右眼肿瘤临床表现相符。我们建议在治疗阶段应用B超对脉络膜肿瘤的大小进展或转归进行定量评估。

关键词：脉络膜转移肺癌超声检测最大交叉截面积

粳稻亚种内杂种劣势遗传特性分析及其相关基因的克隆

在线全文

学校读者我要写书评

暂无评论

分子植物育种 2020年第6期18卷 1740-1747页

作者：郭效琼李梦婷魏振飞朱骞李伟 Sadia nadir 周丽冯天文建成陈丽娟李东宣云南农业大学稻作研究所昆明650201 山西省农业科学院忻州034000 云南农业大学省部共建云南生物资源保护与利用国家重点实验室昆明650201 本努科技大学化学系巴基斯坦本努28100 中国科学院昆明植物研究所山地生态系统研究中心昆明650201

杂种劣势是存在于自然种群之间的一种合子后生殖障碍,水稻杂种劣势的研究有利于探讨种间、亚种间和亚种内杂交不亲和原因,对建立新的杂种优势利用模式具有重要的理论及实践意义。本研究旨在通过对三个韩国粳稻劣势亲本"Aranghyangchalby... 详细信息

杂种劣势是存在于自然种群之间的一种合子后生殖障碍,水稻杂种劣势的研究有利于探讨种间、亚种间和亚种内杂交不亲和原因,对建立新的杂种优势利用模式具有重要的理论及实践意义。本研究旨在通过对三个韩国粳稻劣势亲本"Aranghyangchalbyeo"(CH7)、"Sanghaehyangheolua"(CH8)和"Shinseonchalbyeo"(CH9)及其杂交后代(F1, F2)的生物学特征、特性进行比较,解析水稻粳稻亚种内杂种劣势的遗传模式;同时利用单倍型分析和图位克隆比对,探明CH8和CH9两个劣势亲本中所携带的劣势相关基因序列差异。结果表明,携带劣势基因的亲本自身生长正常,但正反交后F1表现稳定且明显的杂种劣势,F2群体中劣势植株与正常植株呈现9:7的分离,推断该杂种劣势的表型由两个互补的显性基因控制;劣势亲本CH8第1号染色体携带了稀有的劣势基因Hwc1;劣势亲本CH9不携带Hwc1和Hwc2基因,可能携带了其他劣势基因。该结果为揭示杂种劣势的基因多样性及分子遗传机制提供了科学依据。

关键词：粳稻杂种劣势遗传特性基因克隆