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Clinical and Therapeutic Management of Male Infertility in Thies, Senegal

Open Journal of Urology 2019年第1期9卷 1-10页

作者： Yoro Diallo Modou Diop N’diaye Saint Charles Kouka Mama Sy Diallo mehdi Daher Amy Diamé Modou Faye Néné Mariama Sow Ramatoulaye Ly Cheikh Diop Seydou Diaw Cheickna Sylla Department of Urology Faculty of Health Sciences University of Thies Thies Senegal

Objective: To evaluate the clinical and therapeutic aspects of male subfertility in the Region of Thies. Patients and methods: This is a retrospective and analytical study involving patients followed for subfertility over a period of 4 years from January 2013 to November 2017 at the level of 3 health structures in the region of Thies. Results: During the period, we collected 201 patients. The average age was 38 ± 8.4 years with a greater distribution in the age group 30-39 years. Primary subfertility was predominant with 81.1% of cases. The average duration was 5 years. We found a history of urethritis (4%) and orchiepididymitis (2.5%). Thirty-three percent of patients presented a varicocele (67 cases). Cryptorchidism was recorded in 2% of cases, testicular hypotrophy in 18.4% and testicular atrophy in 1.5%. The spermogram identified oligospermia-like abnormalities in 40.8% of cases, azoospermia 22.4%, and hypospermia 4%. For the qualitative abnormalities, we recorded cases of asthenospermia in 60.2% of the cases or 121 patients, a necrospermia 58.2% and a teratospermia 20.4%. A combination of these abnormalities was also reported as astheno-necrospermia in 19.4% of cases, oligo-astheno-necrospermia 14.4%, oligo-asthenotera-necrospermia 10% and oligo astero-teratospermia in 2.5%. An assessment of FSH, LH and testosterone was performed in 5.9% of the cases, or 12 patients. Varicocelectomy was performed in 68.4% of cases 19 patients, and (medically) assisted procreation in 2 patients. We recorded 13 cases of pregnancy. Conclusion: Male hypofertility is a real problem of management, and requires a particular approach.

关键词： Hypofertility Clinical Spermogram Varicocele

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基于纳米亲和界面的磷酸肽分离及原位电离分析研究

基于纳米亲和界面的磷酸肽分离及原位电离分析研究

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中国化学会第二届全国质谱分析学术报告会

作者：闵乾昊陈学勤李思远朱俊杰 Richard N.zare 南京大学生命分析国家重点实验室 Department of Chemistry Stanford University

通过质谱手段对磷酸化多肽的检测分析往往受限于磷酸化多肽/蛋白的低丰度和实际生物体系的复杂性。因此,开发高性能磷酸肽分离、捕获、富集材料,已成为解决这一难题的重要途径。我们着眼于纳米材料,致力于遴选高效亲和分离探针,基于质... 详细信息

通过质谱手段对磷酸化多肽的检测分析往往受限于磷酸化多肽/蛋白的低丰度和实际生物体系的复杂性。因此,开发高性能磷酸肽分离、捕获、富集材料,已成为解决这一难题的重要途径。我们着眼于纳米材料,致力于遴选高效亲和分离探针,基于质谱分析平台,建立了高选择、高灵敏磷酸肽分离分析方法[1,2]。我们创新性地将钛铌酸纳米片层二维材料引入生物分离领域,设计了一种Fe3O4嵌入钛铌酸二维复合亲和探针（Fe3O4-Ti Nb NS）用于磷酸肽的分离富集和原位标记（图1a）。其中,钛铌酸二维纳米结构为磷酸肽的分离和标记提供了丰富的亲和位点和巨大的反应空间;而Fe3O4在赋予复合材料磁分离能力的同时,扰乱了钛铌酸片层的重聚,进而为磷酸肽的捕获预留了更大的活性表面。通过原位同位素标记,我们对急性早幼粒白血病病人血清中的内源性磷酸肽进行了相对定量分析[3]。此外,针对生物大分子常压原位探测的应用需求,我们开发了一种阵列式分离界面集成纳喷解吸电喷雾离子源（Nano DESI）技术（图1b）。将钛铌酸纳米片层（Ti Nb NS）作为磷酸肽亲和材料,在普通载玻片上构建阵列式亲和界面。在生物样品上样后,利用Nano DESI探头处的液体接界将捕获于分离材料上的磷酸肽洗脱,并在毛细管终端发生电喷雾离子化,解决了常规DESI模式下喷雾液滴对生物大分子萃取携带效率较低的问题。通质谱成像技术和内标法,可实现不同阵列点之间磷酸肽的相对定量,实际应用中对胰腺癌病人血清中的内源性磷酸肽的异常表达进行了研究。该技术可用于临床样品的高通量检测,实现了常压环境下磷酸肽的快速分离和原位探测分析。

关键词：纳米材料磷酸肽原位电离质谱

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Numerical investigation of grooves effects on the thermal performance of helically grooved shell and coil tube heat exchanger

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中国化学工程学报（英文版） 2022年第4期

作者： mehdi Miansari mehdi Rajabtabar Darvishi Davood Toghraie Pouya Barnoon Mojtaba Shirzad As'ad Alizadeh

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磁流变挤压悬置动态特性试验研究

磁流变挤压悬置动态特性试验研究

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第六届全国电磁流变液及其应用学术会议

作者：章新杰 mehdi Ahmadian 赵福全庄晔郭孔辉吉林大学汽车仿真与控制国家重点实验室 CVeSS Virginia TechBlacksburg 吉利汽车工程研究院

磁流变液体是一种在磁场作用下,其流变特性会发生改变的智能材料。这种特性主要表现为磁流变液体的屈服应力会随着磁场的增强而单调增加。磁流变挤压模式下产生的压力比其他模式(阀模式,剪切模式)下产生的压力都要高,可用于隔离振幅较... 详细信息

磁流变液体是一种在磁场作用下,其流变特性会发生改变的智能材料。这种特性主要表现为磁流变液体的屈服应力会随着磁场的增强而单调增加。磁流变挤压模式下产生的压力比其他模式(阀模式,剪切模式)下产生的压力都要高,可用于隔离振幅较小而动载较大的振动。现有文献对于磁流变挤压模型的研究,大部分局限于静态,准静态过程,只有少量文献里展现了低频激励下的动态特性研究。因此此文主要针对磁流变挤压模型的动态特性(1-50Hz)进行了试验研究。

关键词：磁流变积压模式磁场有限元动态特性

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Prevalence of HIV infection and the correlates among homeless in Tehran,Iran

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Asian Pacific Journal of Tropical Biomedicine 2014年第1期4卷 65-68页

作者： Abbas Ostad Taghi zadeh SeyedAhmad SeyedAlinaghi Farshad Fakhimi Hassanzad mehdi Hajizadeh SeyedNajmeddin Mohamadi Sahra Emamzadeh-Fard Koosha Paydary Mostafa Hosseini Department of Disaster Public Health School of Public HealthTehran University of Medical Sciences(TUMS) Iranian Research Center for HIV/AIDS(IRCHA) Iranian Institute for Reduction of High-Risk BehaviorsTehran University of Medical Sciences(TUMS) Welfare Services and Social Participations Organization Students' Scientific Research Center(SSRC) Tehran University of Medical Sciences(TUMS) Department of Epidemiology and Biostatistics School of Public HealthTehran University of Medical Sciences(TUMS)

Objective:To determine the prevalence of HIV infection among homeless men and women and the related risk behaviors in Tehran,***:In 2007-2008,Tehran municipality stacked up 10657 homeless men and women for assessment of HIV and began collaboration with Iranian Research Center for HIV/AIDS(IRCHA)departments to conduct HIV infection prevalence surveys in homeless *** results were analyzed for associations with demographic information,family support,status of drug abuse and relation with family and ***:Overall HIV prevalence was 1.7%(95%confidence interval 1.4-1.9).Factors independently associated with HIV infection included history of using drugs[AOR 8.15(4.86-13.67)].older age[AOR1.80(1.08-2.99)for 40-55 yr],occupation[AOR 1.64(1.19-2.24)for unemployed],and no relation with family[AOR 1.82(l.30-2.54)|.Conclusions:This study supports the idea that injection drug use is contributing to the increased spread of HIV among Iranian *** reduction programs should be expanded,particularly among homeless injection drug users.

关键词： Homeless HIV infection Prevalence

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日粮中添加不同水平的有机和无机铬对热应激状态下肉鸡生产性能、胴体性状和血液生化指标的影响

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饲料与畜牧（新饲料） 2013年第2期 45-48页

作者： Mohammad mehdi Moeini 王仁华(译) 刘晓兰(译) 王琤韡(译) 不详江西农业大学动物科学技术学院江西省兽药饲料监察所

试验目的是评定日粮中添加不同水平的铬(Cr)对热应激状态肉鸡生产性能、胴体性状和血液生化指标的影响。试验采用完全随机设计,在热应激温度(33±3℃)下,将250只肉鸡随机分为5个处理组,每个处理5个重复,每个重复10只肉鸡。试验日粮分别... 详细信息

试验目的是评定日粮中添加不同水平的铬(Cr)对热应激状态肉鸡生产性能、胴体性状和血液生化指标的影响。试验采用完全随机设计,在热应激温度(33±3℃)下,将250只肉鸡随机分为5个处理组,每个处理5个重复,每个重复10只肉鸡。试验日粮分别为:基础日粮(对照组),以及分别在基础日粮的基础上添加800μg/kgL-蛋氨酸铬(T1)、1,200μg/kgL-蛋氨酸铬(T2)、800μg/kg的CrCl3(T3)和1200μg/kg的CrCl3(T4)4个试验处理组。在肉鸡10、21和42日龄,收集各处理组肉鸡的采食量和体重等数据。在肉鸡28和42日龄,收集每栏中两只肉鸡的血液样本,以确定血液生化指标。试验结果表明,与对照组相比,日粮中补充铬对肉鸡增重和饲料转化率没有显著差异。与其它试验组相比,日粮中添加有机蛋氨酸铬能有效降低肉鸡血糖浓度。与对照组相比,试验组肉鸡血清高密度脂蛋白(HDL)浓度略有增加,但不显著,T2组肉鸡平均血清HDL显著高于对照组。日粮中添加有机蛋氨酸铬可显著降低肉鸡血清低密度脂蛋白(LDL)的浓度(P<0.05)。

关键词：铬生产性能肉鸡血液生化指标热应激

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Effects of neurofeedback on the short-term memory and continuous attention of patients with moderate traumatic brain injury： A preliminary randomized controlled clinical trial

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Chinese Journal of Traumatology 2017年第5期20卷 278-282页

作者： Reza Rostami Payman Salamati Kourosh Karimi Yarandi Alireza Khoshnevisan Soheil Saadat Zeynab Sadat Kamali Somaie Ghiasi Atefeh Zaryabi Seyed Shahab Ghazi Mir Saeid mehdi Arjipour Mohammad Saeid Rezaee-Zavareh Vafa Rahimi-Movaghar Department of Psychology Tehran University Tehran Islamic Republic of Iran Sina Trauma and Surgery Research Center Tehran University of Medical Sciences Tehran Islamic Republic of Iran Department of Neurosurgery School of Medicine Shariati Hospital Tehran University of Medical Sciences TehranIran Department of Psychology Kharazmi University Tehran Islamic Republic of Iran Department of Clinical Psychology AUame Tabatabaei University Tehran Iran Students' Research Committee Baqiyatallah University of Medical Sciences Tehran Islamic Republic of Iran

Purpose： There are some studies which showed neurofeedback therapy （NET） can be effective in clients with traumatic brain injury （TBI） history. However, randomized controlled clinical trials are still needed for evaluation of this treatment as a standard option. This preliminary study was aimed to evaluate the effect of NET on continuous attention （CA） and short-term memory （STM） of clients with moderate TBI using a randomized controlled clinical trial （RCT）. Methods： In this preliminary RCT, seventeen eligible patients with moderate TBl were randomly allo- cated in two intervention and control groups. All the patients were evaluated for CA and STM using the visual continuous attention test and Wechsler memory scale-4th edition （WMS-IV） test, respectively, both at the time of inclusion to the project and four weeks later. The intervention group participated in 20 sessions of NFT through the first four weeks. Conversely, the control group participated in the same NF sessions from the fifth week to eighth week of the project. Results： Eight subjects in the intervention group and five subjects in the control group completed the study. The mean and standard deviation of participants＇ age were （26.75 ~ 15.16） years and （2Z60 ＋_ 8.17） years in experiment and control groups, respectively. All of the subjects were male. No significant improvement was observed in any variables of the visual continuous attention test and WMS-IV test between two groups （p _~ 0.05）. Conclusion： Based on our literature review, it seems that our study is the only study performed on the effect of NET on TBl patients with control group. NET has no effect on CA and STM in patients with moderate TBI. More RCTs with large sample sizes, more sessions of treatment, longer time of follow-up and different orotocols are recommended.

关键词： Neurofeedback Brain injuries Attention Short-term memory

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The type of lipid supplement has crucial implications for forage particle size in calf starter diets.

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畜牧与生物技术杂志(英文版) 2023年第6期

作者： Pedram Panahiha Hamidreza Mirzaei-Alamouti mehdi Kazemi-Bonchenari mehdi Poorhamdollah Mina Vazirigohar Jörg R.Aschenbach

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Digital Video Stabilization System by Adaptive Fuzzy Filtering

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通讯和计算机（中英文版） 2012年第10期9卷 1206-1212页

作者： Mohammad Javad Tanakia~ mehdi Rezaei Farahnaz Mohanna Faculty of Electrical & Computer Engineering University of Sistan and Baluchestan Zahedan Iran

DVS (digital video stabilization) allows acquiring video sequences without disturbing jerkiness, removing unwanted camera movements. In this paper, the authors propose a novel DVS algorithm that adaptively compensates the camera jitters utilizing an adaptive fuzzy filter on the global motion of video frames. The adaptive fuzzy filter is a simple IIR (infinite impulse response) filter which is tuned adaptively by a fuzzy system. The fuzzy system has two inputs which are used as quantitative representations of unwanted and intentional camera motion. The fuzzy system is also tuned adaptively during operation according to the characteristics of camera jitters. The global motion of video frames is estimated based on the block motion vectors which are resulted by video encoder during motion estimation operation. The proposed method also utilizes an adaptive criterion for validating of motion vectors. Experimental results have indicated a good performance for the proposed DVS algorithm.

关键词：自适应补偿模糊滤波稳定系统数字视频自适应模糊系统全局运动估计相机运动无限脉冲响应

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3D Modelling, Simulation and Prediction of Facial Wrinkles

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通讯和计算机（中英文版） 2014年第4期11卷 365-370页

作者： Sokyna Alqatawneh Ali mehdi Thamer Al Rawashdeh Department of Multimedia Systems Faculty of Science and Information Technology Al-Zaytoonah University of Jordan AmmanJordan Department of Computing and Informatics Faculty of Computing and Informatics Saudi Electronic University Riyadh SaudiArabia .Department of Computer Science Faculty of Science and Information Technology Al-Zaytoonah University of Jordan AmmanJordan

The FA (facial ageing) process has been of a great interest to many researchers and some firms like airports and police departments, this is due to the fact that the face appearance changes as people age resulting in difficulties identifying certain individuals. In this paper, 2D wrinkle maps will be used in the design of a 3D system for the purpose of facial wrinkles simulation and prediction. Our findings will challenge many commercial softwares in the innovation of the techniques in setting solid grounds to generate real-time 3D wrinkles that can be used later for various reasons. The 2D binary wrinkles will be mapped on the corresponding 3D face models using the generated outlined images. NURBS curves will then be projected on those wrinkles to form a 3D wrinkle map. The coloured wrinkle map, as well as some parameters, will be combined together in an algorithm to predict the appearance of the individual wrinkles in every age group that are divided into decades, starting from the age of 20. The novelty of the adopted procedure in comparison to the previous works is the new elements that have been integrated and collaborated to boost accuracy and generate a more realistic outcome.

关键词：面部皱纹 3D建模预测 NURBS曲线仿真三维系统警察部门研究人员

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