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烷基化汽油中烃类物质含量的太赫兹时域光谱研究

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红外与激光工程 2015年第6期44卷 1823-1826页

作者：宝日玛董晨蓝兴英冯程静孟倩赵昆中国石油大学(北京)重质油国家重点实验室北京102249 中国石油大学(北京)油气光学探测技术北京市重点实验室北京102249 全国石油和化工行业联合会油气太赫兹波谱与光电检测重点实验室北京100723

应用太赫兹时域光谱技术研究了烷基化汽油中烯烃在太赫兹波段的性质。以烷基化汽油中的2,4,4-三甲基戊烯为例,分析了其不同浓度在太赫兹波段产生的光谱响应。结果表明,对于烯烃含量不同的烷基化汽油,其信号中的峰强具有明显不同,并随着... 详细信息

应用太赫兹时域光谱技术研究了烷基化汽油中烯烃在太赫兹波段的性质。以烷基化汽油中的2,4,4-三甲基戊烯为例,分析了其不同浓度在太赫兹波段产生的光谱响应。结果表明,对于烯烃含量不同的烷基化汽油,其信号中的峰强具有明显不同,并随着浓度的变化呈线性变化。利用时域谱最大值和最小值之和拟合而成的预测曲线对两种未知浓度样品进行预测,其误差均小于0.5%。同时对其不同频率下的吸收系数进行拟合与分析。根据太赫兹光谱最原始的幅值信息及其吸收系数可对其中烯烃含量进行快速定性,甚至是定量分析,为烷基化汽油中烃含量和品质的定量检测作基础。

关键词：太赫兹时域光谱烷基化汽油烯烃

Higher frequency of Yq microdeletions in sperm DNA as compared to DNA isolated from blood

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Asian Journal of Andrology 2007年第5期9卷 720-722页

作者： rima Dada Rakesh Kumar M. B. Shamsi Rajeev Kumar Kiran Kucheria Raj K. Sharma Satish K. Gupta Narmada P. Gupta Laboratory for Molecular Reproduction and Genetics Anatomy DepartmentAll India Institute of Medical Sciences New Delhi 29 India Urology Department All India Institute of Medical Sciences New Delhi 29 India Endocrinology Department All India Institute of Medical Sciences New Delhi 29 India ART Centre Army Research and Referral Hospital New Delhi 57 India Gamete Antigen Laboratory National Institute of Immunology New Delhi 67 India

Aim： To determine if Yq microdeletion frequency and loci of deletion are similar in two tissues （blood and sperm） of different embryological origin. Methods： The present study included 52 infertile oligozoospermic cases. In each case, DNA was isolated from blood and sperms and polymerase chain reaction （PCR） microdeletion analysis was done from genomic DNA isolated from both the tissues. The PCR products were analyzed on a 1.8% agarose gel. PCR amplifications found to be negative were repeated at least three times to confirm the deletion of a given marker. Results： Only 1 case harbored microdeletion in blood DNA, whereas 4 cases harbored microdeletion in sperm DNA. Conclusion： The frequency of Yq microdeletions is higher in germ cells as compared to blood. As the majority of infertile couples opt for assisted reproduction procreation techniques （ART）, Yq microdeletion screening from germ cells is important to understand the genetic basis of infertility, to provide comprehensive counseling and most adapted therapeutics to the infertile couple.

关键词： assisted reproductive techniques infertility semen genomic DNA Yq screening

Estimating steatosis and fibrosis: Comparison of acoustic structure quantification with established techniques

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World Journal of Gastroenterology 2015年第16期21卷 4894-4902页

作者： Thomas Karlas Joachim Berger Nikita Garnov Franziska Lindner Harald Busse Nicolas Linder Alexander Schaudinn Bettina Relke rima Chakaroun Michael Trltzsch Johannes Wiegand Volker Keim IFB Adiposity Diseases Leipzig University Medical Center Department of Medicine Neurology and DermatologyDivision of Gastroenterology and RheumatologyUniversity Hospital Leipzig Department of Diagnostic and Interventional Radiology University Hospital Leipzig Internistische Hausarzt- und Diabetologische Schwerpunktpraxis Dr. Relke Department of Medicine Neurology and DermatologyDivision of Endocrinology and NephrologyUniversity Hospital Leipzig

AIM:To compare ultrasound-based acoustic structure quantification(ASQ) with established non-invasive techniques for grading and staging fatty liver ***:Type 2 diabetic patients at risk of nonalcoholic fatty liver disease(n = 50) and healthy volunteers(n = 20) were evaluated using laboratory analysis and anthropometric measurements, transient elastography(TE), controlled attenuation parameter(CAP), proton magnetic resonance spectroscopy(1H-MRS; only available for the diabetic cohort), and *** parameters mode, average and focal disturbance(FD) ratio were compared with:(1) the extent of liver fibrosis estimated from TE and nonalcoholic fatty liver disease(NAFLD) fibrosis scores; and(2) the amount of steatosis, which was classified according to CAP ***:Forty-seven diabetic patients(age 67.0±8.6 years;body mass index 29.4±4.5 kg/m2)with reliable CAP measurements and all controls(age 26.5±3.2 years;body mass index 22.0±2.7 kg/m2)were included in the *** ASQ parameters showed differences between healthy controls and diabetic patients(P0.08,respectively).CONCLUSION:ASQ parameters correlate with steatosis,but not with fibrosis in fatty liver *** estimation with ASQ should be further evaluated in biopsy-controlled studies.

关键词： Transient elastography Non-alcoholic fatty liver disease Liver stiffness Fibrosis score Controlled attenuation parameter

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桑枝水提取物乙酸乙酯相的GC-MS分析

广东化工 2021年第4期48卷 18-19页

作者： rima Febria 王海英刘志明高欣妍东北林业大学林学院黑龙江哈尔滨150040 东北林业大学材料科学与工程学院黑龙江哈尔滨150040

以桑枝为原料,索氏提取得到桑枝水提取物。乙酸乙酯为萃取剂,采用气相色谱-质谱(GC-MS)法分析桑枝水提取物乙酸乙酯相的挥发性成分。气相色谱-质谱分析结果表明桑枝水提取物乙酸乙酯相中挥发性组分主要包括芳香烃类(78.02%),烷烃类(6.91... 详细信息

以桑枝为原料,索氏提取得到桑枝水提取物。乙酸乙酯为萃取剂,采用气相色谱-质谱(GC-MS)法分析桑枝水提取物乙酸乙酯相的挥发性成分。气相色谱-质谱分析结果表明桑枝水提取物乙酸乙酯相中挥发性组分主要包括芳香烃类(78.02%),烷烃类(6.91%),醇类(4.26%)、酸类(7.32%)。其中,GC含量最高的为甲苯(67.60%),十一烷的GC含量为6.91%。

关键词：桑枝水提取物乙酸乙酯萃取气相色谱-质谱(GC-MS)

Absence of KHDC3L mutations in Chinese patients with recurrent and sporadic hydatidiform moles

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Absence of KHDC3L mutations in Chinese patients with recurre...

2013浙江省医学遗传学学术年会

作者： Wei Zhao ALa NuEr Muhetaer TengFei Luo Wei Zhou Cheng Qi ZhiFen Zhang Christine Dery rima Slim JianHua Qian Women's Reproductive Health Laboratory Women's Hospital Zhejiang University School of Medicine Hangzhou First People's Hospital Hangzhou hospital of Nanjing Medical University Departments of Human Genetics and dObstetrics and Gynecology McGill University Health Centre

To date,two maternal-effect genes have been shown to play causal roles in recurrent hydatidiform moles (RHMs).NLRP7 ,Is a major gene for this condition,codes for a NOD-like receptor,and is mutated in 48

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利用太赫兹技术和统计方法鉴别地沟油

中国油脂 2015年第4期40卷 52-54页

作者：詹洪磊宝日玛戈立娜赵昆中国石油大学油气光学探测技术北京市重点实验室北京102249 中国石油大学全国石油和化工行业油气太赫兹波谱与光电检测重点实验室北京102249

基于普通食用油和地沟油的太赫兹吸收光谱,利用0.16-1.30 THz频域的吸收谱,进行聚类分析,8种地沟油组成一类,食用油自成一类。随机选择了2种地沟油作为验证样品,将其余油样进行聚类,采用概率神经网络法对验证样品进行判定,并成功将2种... 详细信息

基于普通食用油和地沟油的太赫兹吸收光谱,利用0.16-1.30 THz频域的吸收谱,进行聚类分析,8种地沟油组成一类,食用油自成一类。随机选择了2种地沟油作为验证样品,将其余油样进行聚类,采用概率神经网络法对验证样品进行判定,并成功将2种油判定为地沟油。结果表明,太赫兹时域光谱技术结合统计方法可推广成为鉴别地沟油的快速有效手段。

关键词：地沟油太赫兹聚类分析概率神经网络

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中国人种葡萄胎KHDC3L基因的突变

中国人种葡萄胎KHDC3L基因的突变

2013浙江省医学遗传学学术年会

作者：赵微罗腾飞程琪 rima Slim 钱建华杭州市第一人民医院浙江大学妇产科医院 Departments of Human Genetics and dObstetrics and Gynecology McGill University Health Centre

目的:目前已发现两个母亲效应基因与复发性葡萄胎密切相关。,研究发现NLRP7基因在48%-60%的复发性葡萄胎中存在变变与变异。KHDC3L(既往也称C6orf221)是目前新认识的与葡萄胎发生相关的基因,发现在14%的复发性葡萄胎NLRP7未突变的患者中...

目的:目前已发现两个母亲效应基因与复发性葡萄胎密切相关。,研究发现NLRP7基因在48%-60%的复发性葡萄胎中存在变变与变异。KHDC3L(既往也称C6orf221)是目前新认识的与葡萄胎发生相关的基因,发现在14%的复发性葡萄胎NLRP7未突变的患者中有KHDC3L基因突变现象。本研究筛查中国人种葡萄胎患者KHDC3L基因的突变情况。方法:研究对象:101例中国人种葡萄胎患者,其中15例既往至少有2次葡萄胎病史,16例既往至少有2次妊娠丢失病史,其中一次是葡萄胎,70例既往有1次葡萄胎病史;同时100例中国人种无不良生育史者作为对照组,用测序及比对分析方法对101例中国人种葡萄胎患者及100例中国人种无不良生育史者作为对照组筛查KHDC3L基因的突变情况。结果:101例中国人种葡萄胎患者及100例中国人种无不良生育史者中未发现KHDC3L基因的突变。结论:本次研究发现KHDC3L仅在极少数复发性葡萄胎患者的发生中有一定作用,并证实该基因与其他形式的妊娠丢失无明显相关性,同时也提示在中国人种中可能存在其他未被发现的易感基因与RHM相关。

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HEMA单体体系下的铜粉非水基凝胶注模

粉末冶金技术 2016年第3期34卷 218-221页

作者：唐怡卡瑞玛纪箴贾成厂北京科技大学新材料技术研究院北京100083

本文主要研究了在以HEMA为单体的非水基凝胶体系中单体含量和交联剂含量对铜粉坯体性能的影响,以及单体含量对烧结体性能的影响,并且确定了最佳的单体含量以及交联剂含量,分别为36 Vol.%和3.6 Vol.%。此时烧结体的致密度为70.4%,体积收... 详细信息

本文主要研究了在以HEMA为单体的非水基凝胶体系中单体含量和交联剂含量对铜粉坯体性能的影响,以及单体含量对烧结体性能的影响,并且确定了最佳的单体含量以及交联剂含量,分别为36 Vol.%和3.6 Vol.%。此时烧结体的致密度为70.4%,体积收缩率为18.12%。

关键词： HEMA 非水基凝胶坯体烧结

Prevalence and Associated Risk Factors of Porcine Echinococcosis at the Ivorian Pig Slaughter Company (SIVAC), Yopougon Abidjan: A Cross Sectional Study

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Journal of Biosciences and Medicines 2020年第11期8卷 1-8页

作者： Touré Lisette Koné Naférima Toure Alassane Emmanuel K. Mebourou Senin C. B. Valery Sevidzem S. Lendzele Mavoungou J. François Acapovi-Yao G. Lydie UFR Biosciences Université Félix Houphou&euml t-Boigny Abidjan C&ocirc te d’Ivoire Laboratoire National d’Appui au Développement Agricole Laboratoire Central Vétérinaire de Bingerville Bingerville C&ocirc te d’Ivoire Département des Sciences de la Vie Faculté de Sciences Université de Bangui Bangui République de Centrafrique Département Hygiène et Santé Animale Société Ivoirienne d’Abattage et de Charcuterie Abidjan C&ocirc te d’Ivoire Laboratoire d’Ecologie Vectorielle (LEV-IRET) Ecole Doctorale des Grandes Ecoles (EDGE) Libreville Gabon Institut de Recherche en Ecologie Tropicale (IRET-CENAREST) Libreville Gabon

Background: Parasitic diseases are threat to the development of Ivorian Pig industry. Zoonotic diseases such as Echinococcosis have a significant impact on animal health and production. Little is known about Echinococcosis in Cô te d’Ivoire. Aim: For these reasons, a cross section study was conducted at SIVAC in Yopougon, on pigs (Sus scrofa domesticus), in order to determine the prevalence and associated risk factors of Echinococcosis. Method: Paraclinical examinations of pig organs (kidneys, lungs, and liver) were conducted from 5th September to 30th December 2019 in order to report infection with this parasite. Results: Out of the 2425 slaughtered pigs, 63 of them were Echi-nococcosis positive, resulting in overall infection prevalence of 2.6% (95% CI: 1.9% - 3.22%). The kidneys (2.35%) were most infected, followed by lungs (0.21%), and liver (0.04%). Recommendations: A more in-depth study on the molecular epidemiology of Echinococcosis in the different regions of Cô te d’Ivoire is underway. Also, capacity building of community livestock actors (Veterinarians, health inspectors, breeders and butchers) and sensitization of the population on this disease is necessary in order to improve its diagnosis at the abattoir level and to set up strategies to combat it.

关键词： Echinococcosis Prevalence Pig SIVAC Abidjan