检索结果-南通市图书馆

A Pregnant Woman Died of Sudden Cardiac Death:Should Esophageal Foreign Body Be Considered an Inductive Factor?A Case Report and Literature Review

在线全文

学校读者我要写书评

暂无评论

Journal of Forensic Science and Medicine 2022年第4期8卷 186-189页

作者： Chang Cao Mingming Li Zhanzhan Liu shiyong fang Gang Chen Guang Chen Tongjun Ma Xuyang Zhu Xiang Xu School of Forensic Medicine Wannan Medical CollegeWuhuAnhui ProvinceChina Wannan Medical College Wuhu Zhiwei Pathology Diagnosis CenterWuhuAnhui ProvinceChina

Here,we report a case of acute attack of coronary heart disease(CHD).A 47‑year‑old pregnant woman with gestational hypertension developed sudden‑onset chest tightness,palpitations,dyspnea,and cyanosis of the face and lips after *** blood pressure was 180/110 mmHg and her blood oxygen saturation was 45%at that *** cardiopulmonary resuscitation,a weak heartbeat was restored,but oxygen saturation did not increase ***,she was transferred to the intensive care unit;however,she died after 21 days of *** findings revealed that a foreign body was embedded in the esophagus near the right piriform,and her heart weighed 392 g;histopathological examination revealed CHD,thrombosis in the lumen of the right coronary artery,cardiomyocyte hypertrophy,vascular hyaline degeneration in arterioles,neutrophils in the bronchiole and *** the tested samples yielded negative toxicological *** status and autopsy findings were not compatible with a diagnosis of peripartum *** patient’s sudden death was attributed to CHD,and esophageal foreign‑body impaction was considered to be concomitant *** findings might help in increasing the awareness between esophageal foreign‑body impaction and sudden cardiac death and they can also help in clarifying that understanding the primary cause of death is the key to resolving an iatrogenic medical tangle.

关键词： Advanced maternal age coronary heart disease esophageal foreign body forensic pathology sudden cardiac death

Metabolomic Analysis of the Brain and Blood from Rats Exposed to High‑dose Chlorpyrifos

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 Forensic Science and Medicine 2019年第1期5卷 1-6,I0001页

作者： Hao Wu Qingtao Wei Yuzi Zheng shiyong fang Yingqiang Fu Linchuan Liao Department of Forensic Toxicological Analysis The West China School of Basic Medical Sciences and Forensic MedicineSichuan UniversityChengduSichuanChina Department of Technology The People’s Procuratorate of ChenghuaChengduSichuanChina

Chlorpyrifos is an organophosphate pesticide used to kill pests such as insects and *** use of chlorpyrifos has led to serious safety concerns *** on the mechanism of action of chlorpyrifos poisoning is *** investigated changes in the small‑molecular metabolites in the brain and blood of rats upon exposure to chlorpyrifos at an acute‑poisoning *** were given twice the lowest dose of chlorpyrifos that is lethal for 100%of exposed animals(2×LD_(100))and then killed after 2 *** treatment,gas chromatography‑mass spectrometry was used to analyze the metabolomic changes in the brain and blood samples of *** increase in blood levels of creatinine and uric acid were noted,along with a decrease in levels of various amino *** changes suggested that chlorpyrifos exposure may damage kidney function and cause disorders in amino‑acid metabolism of *** concentrations of gamma‑aminobutyric acid and niacinamide in the brain and increased concentrations of 3‑hydroxybutyric acid in rats with acute poisoning by chlorpyrifos were observed,which may suggest oxidative damage in the body.

关键词： Chlorpyrifos gas chromatography‑mass spectrometry metabolomics

Mitigating growth-stress tradeoffs via elevated TOR signaling in rice

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Molecular Plant 2024年第2期17卷 240-257页

作者： Wei Li Jiaqi Liu Zeqi Li Ruiqiang Ye Wenzhen Chen Yuqing Huang Yue Yuan Yi Zhang Huayi Hu Peng Zheng Zhongming fang Zeng Tao shiyong Song Ronghui Pan Jian Zhang Jumim Tu Jen Sheen Hao Du State Key Laboratory of Rice Biology College of Agriculture and BiotechnologyZhejiang UniversityYu-Hang-Tang Road No.866Hangzhou 310058China ZJU-Hangzhou Global Scientific and Technological Innovation Center Zhejiang UniversityHangzhou 311215China Hainan Institute of Zhejiang University Sanya 572025China National Key Laboratory of Plant Molecular Genetics CASCenter for Excellence in Molecular Plant SciencesShanghai lnstitute of Plant Physiology and EcologyChineseAcademy of SciencesShanghai 200032China Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region(Ministry of Education) College of Agricultural SciencesGuizhouUniversityGuiyang 550025China State Key Laboratory of Rice Biology and Breeding China National Rice Research InstituteHangzhou 311400China Department of Molecular Biology and Center for Computational and Integrative Biology Massachusetts General Hospitaland Department of GeneticsHarvard Medical SchoolBostonMA02114USA

Rice production accounts for approximately half of the freshwater resources utilized in agriculture,result-ing in greenhouse gas emissions such as methane(CH4)from flooded paddy *** address this chal-lenge,environmentally friendly and cost-effective water-saving techniques have become widely adopted in rice ***,the implementation of water-saving treatments(WsTs)in paddy-field rice has been associated with a substantial yield loss of up to 50%as well as a reduction in nitrogen use efficiency(NUE).In this study,we discovered that the target of rapamycin(TOR)signaling pathway is compromised in rice under *** profiling-coupled transcriptome sequencing(polysome-seq)analysis unveiled a substantial reduction in global translation in response to WST associated with the downregulation of TOR ***,biochemical,and genetic analyses revealed new insights into the impact of the positive TOR-S6K-RPS6 and negative TOR-MAF1 modules on translation repression under ***,ammonium exhibited a greater ability to alleviate growth constraints under WsT by enhancing TOR signaling,which simultaneously promoted uptake and utilization of ammonium and nitrogen *** further demonstrated that TOR modulates the ammonium transporter AMT1;1 as well as the amino acid permease APP1 and dipeptide transporter NPF7.3 at the translational level through the 5'untranslated ***,these findings reveal that enhancing TOR signaling could mitigate rice yield penalty due to WST by regulating the processes involved in protein synthesis and *** study will contribute to the breeding of new rice varieties with increased water and fertilizer utilization efficiency.

关键词： target of rapamycin TOR water-saving rice low-carbon agriculture drought nitrogen use efficiency NUE

A Gas Chromatography-Mass Spectrometry‑Based Metabonomic Study on Estimation of Toxicant in Rats

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 Forensic Science and Medicine 2019年第2期5卷 80-86页

作者： Yingqiang Fu Xinhua Dai Fan Chen Yuzi Zheng shiyong fang Yang Lin Yi Ye Linchuan Liao Department of Forensic Toxicological Analysis The West China School of Basic Medical Sciences and Forensic MedicineSichuan UniversityChengduSichuanChina

The aim of this study was to develop a gas chromatography‑mass spectrometry(GC‑MS)‑based metabolomics method to distinguish different kinds of poisons in the *** examined the changes in blood metabolites using GC‑MS following administration of four different poisons(paraquat,dichlorvos,aconitine,and sodium nitrite).The data were analyzed with orthogonal partial least ***,total and single differential metabolite profiles were evaluated with support vector machine(SVM)*** results showed that various metabolites(5‑ketone proline,1,5‑anhydrohexitol,lactic acid,glycine 2,2‑furoic acid,and 3‑hydroxybutyric acid)were differential between the experimental groups and the control *** accuracy rates of the SVM models established using total and single differential metabolites were 80%and 100%,*** conclusion,we successfully developed a poison screening *** established SVM models can distinguish four kinds of poisons and could be used to establish a complete poison metabonomic information ***,some of the metabolites could be biomarkers of these ***,both the models and potential biomarkers may reduce the time required for poison detection and provide direction for solving cases and auxiliary diagnosis.

关键词： Aconitine dichlorvos gas chromatography‑mass spectrometry metabonomics paraquat sodium nitrite

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

事于“矩”与事于“心”:孔庄丧葬观之比较

荆楚学刊 2023年第1期24卷 23-28页

作者：方世勇西南大学文学院重庆北碚400715

孔子与庄子作为儒家与道家的代表人物,其各自的丧葬观对中国社会产生了极大的影响。孔子事于“矩”的丧葬观体现其主张在丧葬中重“礼”与“哀”,庄子事于“心”的丧葬观体现其主张在丧葬中重“简”与“乐”:前者重在维系社会礼制法度... 详细信息

孔子与庄子作为儒家与道家的代表人物,其各自的丧葬观对中国社会产生了极大的影响。孔子事于“矩”的丧葬观体现其主张在丧葬中重“礼”与“哀”,庄子事于“心”的丧葬观体现其主张在丧葬中重“简”与“乐”:前者重在维系社会礼制法度的稳定,后者重在寻求个人精神层面的解脱。对孔子与庄子丧葬观的探讨与比较,可以更好地审视孔子与庄子的思想主张及他们对后世的影响。

关键词：孔子庄子事于“矩” 事于“心” 丧葬观比较

英语世界中国文学作品选集中苏诗编选研究——以《哥伦比亚文选》《诺顿中国文选》为例

在线全文

学校读者我要写书评

暂无评论

乐山师范学院学报 2023年第2期38卷 50-57页

作者：方世勇西南大学文学院重庆北碚400715

苏轼作为中国文学史上的集大成者,历来深受人们的推崇与喜爱,对其诗歌的研究与编译也经久不衰。在中国传统文学向世界各地传播的同时,苏轼其人、其诗也受到海外世界尤其是英语世界汉学家的重视,各类英译中国文学作品选集中选编苏诗的现... 详细信息

苏轼作为中国文学史上的集大成者,历来深受人们的推崇与喜爱,对其诗歌的研究与编译也经久不衰。在中国传统文学向世界各地传播的同时,苏轼其人、其诗也受到海外世界尤其是英语世界汉学家的重视,各类英译中国文学作品选集中选编苏诗的现象也层出不穷。在20世纪末期出版的两本具有代表性的英译中国文学作品选集便选入较多的苏诗,从诗歌编排、诗歌体裁与诗歌内容三个层面去分析其不同于国内的编选标准,有利于认识英译选集对苏轼其人、其诗的另类解读与多元化呈现。

关键词：海外汉学研究苏轼文学选文学史

A Preliminary Gas Chromatography‑Mass Spectrometry‑Based Metabolomics Study of Rats Ingested Diazepam or Clonazepam

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Journal of Forensic Science and Medicine 2020年第4期6卷 117-125页

作者： shiyong fang Jianxia Chen Xinhua Dai Yuzi Zheng Hao Wu Yingqiang Fu Jian Li Yi Ye Linchuan Liao Department of Forensic Analytical Toxicology West China School of Basic Medical Sciences and Forensic MedicineSichuan UniversityChengduSichuanChina These authors contributed equally to this work

Drug-facilitated sexual assault(DFSA)is a sexual act in which the victim is unable to give or rescind consent due to alcohol or drug intoxication,which involved the abuse of benzodiazepines around the *** techniques used for the analysis of benzodiazepines have the limitation of short detection time window due to the rapid metabolism of these drugs in *** study aimed to investigate the characteristic changes of metabolites in the blood of rats after ingesting diazepam/clonazepam through a gas chromatography-mass spectrometry-based metabolomics method,allowing the indirect reveal of the rats ingested diazepam/***,we found that diazepam and clonazepam in the blood of rats could not be detected by liquid chromatography-tandem mass spectrometry after 48 h of ***,orthogonal partial least squares discrimination analysis regression models were,respectively,constructed to determine whether the rats ingested diazepam/clonazepam after 48 *** results showed that 5 metabolites were found to be associated with diazepam exposure,and 7 metabolites were found to be associated with clonazepam exposure,which may be characterization for the evaluation of digestion of diazepam and clonazepam in rat.

关键词： Clonazepam diazepam gas chromatography-mass spectrometry liquid chromatography-tandem mass spectrometry metabolomics

Ag/Bi_(2)O_(3)纳米块自供能紫外探测器的制备及性能

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

光学精密工程 2024年第5期32卷 653-660页

作者：方向明周起成孙宇乔志铭耿秋丹高世勇太原学院材料与化学工程系山西太原030032 哈尔滨工业大学材料科学与工程学院黑龙江哈尔滨150001

为了实现在无外部供能下对紫外光的有效探测,基于Ag修饰的Bi_(2)O_(3)纳米块(Ag/Bi_(2)O_(3))纳米块制备了自供能紫外探测器。通过煅烧法制备Bi_(2)O_(3)纳米块,随后采用室温溶液法在其表面沉积Ag纳米粒子,进而成功制备了Ag/Bi_(2)O_(3... 详细信息

为了实现在无外部供能下对紫外光的有效探测,基于Ag修饰的Bi_(2)O_(3)纳米块(Ag/Bi_(2)O_(3))纳米块制备了自供能紫外探测器。通过煅烧法制备Bi_(2)O_(3)纳米块,随后采用室温溶液法在其表面沉积Ag纳米粒子,进而成功制备了Ag/Bi_(2)O_(3)纳米块,且对所制备样品的晶体结构和微观形貌等进行了表征。结果表明,Ag/Bi_(2)O_(3)纳米块的平均尺寸约为1μm,且Ag纳米粒子随机分布在Bi_(2)O_(3)纳米块表面。将涂覆Ag/Bi_(2)O_(3)纳米块的FTO作为工作电极,并进一步构建了自供能紫外探测器。在365 nm的紫外光照射下,Ag/Bi_(2)O_(3)纳米块紫外探测器能在零偏压下实现对紫外光的快速检测,这证实其具有自供能特性。相比于Bi_(2)O_(3)纳米块紫外探测器,Ag/Bi_(2)O_(3)纳米块紫外探测器的光电流得到明显提升,上升和下降时间分别缩短至29.1 ms和40.2 ms,并具有良好的循环稳定性。

关键词：紫外探测器 Bi_(2)O_(3)纳米块 Ag纳米粒子自供能探测

基于Bi_(2)O_(3)/g-C_(3)N_(4)复合材料的自供能紫外探测器的制备及性能研究

在线全文

学校读者我要写书评

暂无评论

光子学报 2024年第7期53卷 107-115页

作者：方向明周起成郭庄鹏朱恩科郝瑜睿高世勇太原学院材料与化学工程系太原030032 哈尔滨工业大学材料科学与工程学院哈尔滨150001

为了获得高性能的自供能紫外探测器,结合热聚法和溶液法成功制备了Bi_(2)O_(3)/g-C_(3)N_(4)复合材料,并对其微观形貌、晶体结构、元素组成及价态进行了表征。结果表明,Bi_(2)O_(3)呈蜂窝状结构的块体,其附着在具有层状结构的g-C_(3)N_... 详细信息

为了获得高性能的自供能紫外探测器,结合热聚法和溶液法成功制备了Bi_(2)O_(3)/g-C_(3)N_(4)复合材料,并对其微观形貌、晶体结构、元素组成及价态进行了表征。结果表明,Bi_(2)O_(3)呈蜂窝状结构的块体,其附着在具有层状结构的g-C_(3)N_(4)纳米片上。基于该异质结制备了无需外加偏压即能工作的紫外探测器。在紫外光照射下,Bi_(2)O_(3)/g-C_(3)N_(4)光电探测器能够立即产生光电流并达到最大稳定值约0.43μA,相比于Bi_(2)O_(3)纳米块紫外探测器,其光电流提升了约1.05倍。值得注意的是,Bi_(2)O_(3)/g-C_(3)N_(4)紫外探测器还展现出了快的响应速度(约181.7 ms),并且其光电流与入射光强也具有良好的线性关系,表明该器件对不同强度的紫外光均能实现快速且稳定的探测。

关键词：紫外探测器自供能 Bi_(2)O_(3)纳米块 g-C_(3)N_(4)纳米片异质结