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Synergistic defensive mechanism of phytochelatins and antioxidative enzymes in Brassica chinensis L. against Cd stress

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Chinese Science Bulletin 2008年第10期53卷 1503-1511页

作者： chen liqin GUO YiFei YANG LiMin WANG QiuQuan Department of Chemistry and the MOE Key Laboratory of Modern Analytical Science College of Chemistry and Chemical Engi- neering Xiamen University Xiamen 361005 China State Key Laboratory of Marine Environmental Science Xiamen University Xiamen 361005 China

Brassica chinensis L. was chosen and exposed to different concentrations of Cd exposure to evaluate its Cd-accumulating capacity and its potential cellular defensive mechanisms. Cd accumulation in the shoots and roots of B. chinensis was up to 1348.3±461.8 and 3761.0±795.0 mg per killogram of dry weight, respectively, under 200 μmol/L of Cd exposure. Increasing Cd accumulation in the plant was accompanied by rapid accumulation of phytochelatins (PCs), and the sequestration of Cd by PCs provided a primary cellular mechanism for Cd detoxification and tolerance of B. chinensis. Furthermore, malondialdehyde formation, hydrogen peroxide content and antioxidative enzyme activities such as superoxide dismutase, catalase, guaiacol peroxidase and ascorbate peroxidase were observed in the shoots of Cd-stressed B. chinensis. Increasing enzyme activities in response to concentrations of 5 to 50 μmol/L Cd showed an efficient defense against oxidative stress, suggesting that the antioxidative system was a secondary defensive mechanism. These resulted in reduced free Cd damage and enhanced Cd accumulation and tolerance. Glutathione plays a pivotal role in these two detoxification pathways. In general, these results suggested that PCs and the antioxidative system are synergistic in combatting Cd-induced oxidative stress and that they play important roles in Cd detoxification of B. chinensis, and also give a deep understanding of the natural defensive mechanisms in plants under heavy metal stress.

关键词：镉芸苔植物化学酶类

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Thermal and photoinduced valence tautomerism of a chain compound

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Science China Chemistry 2012年第6期55卷 1037-1041页

作者： chen liqin WEI RongJia TAO Jun HUANG RongBin ZHENG LanSun State Key Laboratory of Physical Chemistry of Solid Surfaces Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China

Herein reported is an example of one-dimensional coordination polymer [Co11(3,5-DBsq)2(dpg)]·(3,5-H2DBcat)2 (1) (3,5-DBsq = 3,5-di-tert-butylsemiquinonate, 3,5-H2DBcat = 3,5-di-tert-butyl-benzene-1,2-diol, dpg = meso... 详细信息

关键词： valence tautomerism coordination polymer cobalt(II) photo excitation

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Research advances in forensic diatom testing

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Forensic Sciences Research 2020年第2期5卷 98-105页

作者： Yuanyuan Zhou Yongjie Cao Jiao Huang Kaifei Deng Kaijun Ma Tianye Zhang liqin chen Ji Zhang Ping Huang Shanghai Key Laboratory of Forensic Medicine Shanghai Forensic Service PlatformAcademy of Forensic ScienceMinistry of JusticeShanghaiChina Department of Forensic Medicine Inner Mongolia Medical UniversityHuhhotChina Department of Forensic Medicine Nanjing Medical UniversityNanjingChina Department of Forensic Medicine Xuzhou Medical UniversityXuzhouChina Institute of Forensic Science Shanghai Municipal Public Security Bureau ShanghaiChina

In forensic practice,it is difficult to determine whether a dead body in the water resulted from drowning or from disposal after *** testing is currently an important supporting technique for the determination of death by drowning and of drowning sites,even though it is a time-consuming and laborious *** article reviews the development of diatom testing over the decades and discusses a new method for the potential application of deep learning in diatom testing.

关键词： Forensic sciences forensic pathology drowning diatom deep learning

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Forensic investigation of 23 autosomal STRs and application in Han and Mongolia ethnic groups

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Forensic Sciences Research 2018年第2期3卷 138-144页

作者： Xiang Sheng Yali Wang Jiashuo Zhang liqin chen Yuan Lin Zhenmin Zhao chengtao Li Suhua Zhang Shanghai Key Laboratory of Forensic Medicine Shanghai Forensic Service PlatformAcademy of Forensic ScienceShanghaiChina Department of Forensic Medicine Medical College of Soochow UniversitySuzhouChina Department of Forensic Medicine Inner Mongolia Medical UniversityHohhotChina

A forensic validation study of the Early Access HuaxiaTM Platinum Polymerase Chain Reaction (PCR) kit was completed to document the performance capabilities and *** genotyping of DNA samples was consistent across a large range of template DNA concentrations,with complete profiles obtained at 0.125 ng;however,no more than 2 mm× 1.2 mm punches of samples would be recommended for direct *** size precision and accuracy test revealed the genotyping ability;while consistent results were obtained when comparing the kit with other commercially available *** addition,the whole PCR amplification can finish within approximately 45 min,making the system suitable for ***,only partial profiles may be obtained with challenging samples,including DNA stored on Foam-Tipped Applicators (FTA) cards or some case *** the forensic application in ethnic groups,a total of 282 and 229 alleles were obtained in Han and Mongolia,*** the 23 short tandem repeats were independent from each other,the cumulative power of exclusion in duos was 0.999999157188 and the cumulative power of exclusion in trios was 0.999999999859 in the Han group while the cumulative power of exclusion in duos (CPEduo) was 0.999 998 848 26 and cumulative power of exclusion in trios (CPEtrio) was 0.999 999 999 79 in the Mongolia *** good internal consistency was found between the two investigated groups and the Sichuan Han,Hui,Tibetan and Uygur according to available reference data.

关键词： Forensic genetics short tandem repeats(STRs) Early Access HuaxiaTM Platinum PCR kit

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Validation studies of the Para DNA^(■) Intelligence System with artificial evidence items

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Forensic Sciences Research 2021年第1期6卷 84-91页

作者： Min Li Ruiyang Tao Wei Zhou Yanan Li Meng Meng Yilun Zhang Linsheng Yu liqin chen Yingnan Bian chengtao Li Institute of Forensic Medicine West China School of Basic Medical Sciences&Forensic MedicineSichuan UniversityChengduChina Shanghai Key Laboratory of Forensic Medicine Shanghai Forensic Service PlatformAcademy of Forensic SciencesMinistry of JusticeP.R.ChinaShanghaiChina The Jackson Laboratory for Genomic Medicine FarmingtonCTUSA Department of Forensic Medical School of Basic Medical SciencesInner Mongolia Medical UniversityHohhotChina Department of Histology and Embryology Harbin Medical UniversityHarbinChina School of Basic Medicine Baotou Medical CollegeBaotouChina g Department of Forensic Medicine School of Basic Medical ScienceWenzhou Medical UniversityWenzhouChina School of Basic Medicine Inner Mongolia Medical UniversityHohhotChina Zhejiang Provincial Key Laboratory of Medical Genetics Key Laboratory of Laboratory MedicineMinistry of EducationChinaSchool of Laboratory Medicine and Life SciencesWenzhou Medical UniversityWenzhouZhejiangChina

Short tandem repeat(STR)profiling is one of the mostly used systems for forensic *** certain circumstances,STR profiling is time-consuming and costly,which potentially leads to delays in criminal ***(Laboratory of the Government Chemist,UK)Forensics has developed a robust STR profiling platform called the ParaDNAVR Intelligence Test System which can provide early tactical intelligence and aid investigators in making informed decisions on sample prioritization for ***,we validated the ParaDNA^(■) intelligence test for its application in forensic cases using a range of mock evidence items following guidelines set by the Scientific Working Group on DNA Analysis Methods(SWGDAM).Specifically,we tested the sensitivity and accuracy of the ParaDNA intelligence test,as well as the success rates for detecting mock samples and for use in case *** findings demonstrate that the ParaDNA intelligence test generates useful DNA profiles,especially for samples such as blood,saliva,and semen that contain ample DNA,indicating the benefits of including ParaDNA as a prior step in forensic STR profiling pipelines.

关键词： Forensic sciences forensic genetics ParaDNA^(■)Test Intelligence System rapid DNA melt curve analysis HyBeacon^(TM)probes

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Women’s Awareness and Attitudes towards Labor Analgesia Influencing Practice between Developed and Developing Countries

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Advances in Reproductive Sciences 2016年第2期4卷 46-52页

作者： Shammi Karn Hong Yu Sourabh Karna liqin chen Dongyan Qiao Department of Obstetrics and Gynecology Zhong Da Hospital Medical School Southeast University Nanjing China Nepal Medical College Kathmandu University Kathmandu Nepal

Childbirth experience is one of the most intense pain that majority of women will endure during their lifetime. Concerns about pain in labor remain a hot topic, and its popularity gets more common day by day as more women become aware of their rights to achieve a better quality of care during labor. There are various non-pharmacologic (transcutaneous electrical nerve stimulation, hydrotherapy, intradermal water injections and acupuncture) and pharmacologic treatments (nitrous oxide, opioids and regional analgesia techniques: spinal, epidural and combined epidural analgesia) available today. Among these, epidural analgesia offers the most effective form of pain relief and is considered to be the gold standard of labor analgesia. Despite having labor analgesic services, most women still go through painful labor due to lack of knowledge regarding it, particularly in developing countries. The main source of information regarding pain reliefs is from friends and relatives, revealing the lack of information from caregiver’s side. So this study reflects that there is a wide gap in the communication between pregnant women and obstetricians. It supports the fact that obstetricians through the practice of routinely offering labor analgesia can significantly improve the maternal and perinatal outcomes of pregnancy. Provision of standardized epidural analgesia information at an appropriate time in their pregnancy may benefit them by the practice of mutual decision-making. Thus, it may prevent women from making a difficult choice of cesarean section to avoid the fear of painful labor.

关键词： Pain Relief Epidural Analgesia Labor Analgesia Developing Country Developed Country Labor Pain

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从传播学视角解读盘古神话

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广西民族研究 2008年第2期 100-105页

作者：陈丽琴东南大学艺术学博士后流动站

盘古神话在几千年流传中能适应不同时代民众的要求,成为经久不衰、生命常青的一种文化现象。作为一种古老的文化形态,盘古文化从各个侧面透露出来的、具有巨大认知价值的信息,引发后代的学者不断地进行研究与破译,而其千年传播和辐射更... 详细信息

盘古神话在几千年流传中能适应不同时代民众的要求,成为经久不衰、生命常青的一种文化现象。作为一种古老的文化形态,盘古文化从各个侧面透露出来的、具有巨大认知价值的信息,引发后代的学者不断地进行研究与破译,而其千年传播和辐射更是一个值得研究的课题。本文从传播学的视角切入,从传播要素、传播特征、传播模式和传播启示等方面对盘古文化的传承与发展问题逐一探讨。

关键词：盘古神话传播透视文化传承

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农户贫困的性别差异及多维指标建构——基于黎母山镇贫困户调查数据的分析

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南京师大学报（社会科学版） 2020年第2期 107-115页

作者：陈丽琴海南大学政治与公共管理学院

基于多维贫困视角,对海南琼中黎母山镇的贫困数据遵循贫困维度指数的选取、指标权重的选择、指标加总的行文逻辑构建了不同性别的农户多维贫困指数;多维贫困指数表征了不同性别的农户贫困存在较大差异,具体体现在教育、健康、经济、闲... 详细信息

基于多维贫困视角,对海南琼中黎母山镇的贫困数据遵循贫困维度指数的选取、指标权重的选择、指标加总的行文逻辑构建了不同性别的农户多维贫困指数;多维贫困指数表征了不同性别的农户贫困存在较大差异,具体体现在教育、健康、经济、闲暇、社会地位和决策权等六个方面,而其中妇女的决策权贫困尤其突出。不同性别的农户多维贫困指数为政府的精准扶贫工作提供了一些参考:用好多维贫困大数据,打好精准脱贫攻坚战;建立农户多维贫困识别标准,使扶贫工作更加精细化;从供给侧结构性改革,以农户的脱贫需求为导向,使政府扶贫工作的供给与需求更加协调与融合;分性别进行多维贫困指数的统计,关注多维贫困的性别差异,针对不同性别采取有效措施,为精准扶贫和性别平等助力。

关键词：多维贫困性别贫困差异精准扶贫

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民俗视野中的广西那坡壮族民歌

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广西民族研究 2011年第3期 83-88页

作者：陈丽琴广西民族大学文学院教授南宁530006

广西那坡壮族民歌是在本民族文化土壤上盛开的艺术奇葩,它深深地扎根于当地的民俗文化环境之中,生产习俗、节日庆典、人生礼仪、民间信仰、交际娱乐等等民俗活动对那坡壮族民歌的生成、传承与发展具有深刻的影响。

关键词：那坡壮族民歌民俗传承

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从被动追随到主动选择：新中国成立以来农村妇女意愿生育性别偏好变迁及其原因

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浙江社会科学 2019年第9期 26-36,156页

作者：陈丽琴海南大学政治与公共管理学院

妇女意愿生育性别偏好的变迁不仅反映和隐匿着农村政治经济社会的历史变迁,也彰显着妇女主体意识崛起和增强的实时图景。新中国成立70年来,农村妇女经历了从"强烈的男孩偏好"到"男女均好"的偏男生育意愿逐渐弱化的变迁历程。偏男生育意... 详细信息

妇女意愿生育性别偏好的变迁不仅反映和隐匿着农村政治经济社会的历史变迁,也彰显着妇女主体意识崛起和增强的实时图景。新中国成立70年来,农村妇女经历了从"强烈的男孩偏好"到"男女均好"的偏男生育意愿逐渐弱化的变迁历程。偏男生育意愿的弱化是乡村多元治理中"她力量"的崛起和妇女主体意识增强的必然结果,体现了农村妇女在意愿生育性别偏好上从被动追随到主动选择的过程。同时,农村社会加速转型带来了社会的异质性和流动性,使得偏男意愿生育的"经济收益"、"社会评价效用"、"养老送终"的实用价值不断被削弱,为妇女偏男生育意愿的弱化提供了助力。

关键词：农村妇女意愿生育性别偏好妇女赋权

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