检索结果-南通市图书馆

Clinical characteristics of acute non-varicose upper gastrointestinal bleeding and the effect of endoscopic hemostasis

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 Clinical Cases 2024年第9期12卷 1597-1605页

作者： Xiao-Juan Wang Yu-Peng Shi li Wang Ya-ni li li-Juan Xu Yue Zhang Shuang Han Department of Gastroenterology Honghui Hospital Affiliated to Medicine College of Xi’an Jiaotong UniversityXi'an 710054Shaanxi ProvinceChina

BACKGROUND Acute non-variceal upper gastrointestinal bleeding(ANVUGIB)constitutes a prevalent emergency within Gastroenterology,encompassing 80%-90%of all gastrointestinal hemorrhage *** condition is distinguished by its abrupt onset,swift progression,and notably elevated mortality *** To gather clinical data from patients with ANVUGIB at our hospital in order to elucidate the clinical characteristics specific to our institution and analyze the therapeutic effectiveness of endoscopic *** We retrospectively retrieved the records of 532 patients diagnosed with ANVUGIB by endoscopy at our hospital between March 2021 and March 2023,utilizing our medical record *** pertaining to general patient information,etiological factors,disease outcomes,and other relevant variables were meticulously collected and *** Among the 532 patients diagnosed with ANVUGIB,the male-to-female ratio was 2.91:1,with a higher prevalence among ***,43.6%of patients presented with black stool as their primary complaint,while 27.4%had hematemesis as their initial *** admission,17%of patients exhibited both hematemesis and black stool,while most ANVUGIB patients primarily complained of overt gastrointestinal *** routine blood examinations at admission revealed that 75.8%of patients had anemia,with 63.4%experiencing moderate to severe anemia,and 1.5%having extremely severe anemia(hemoglobinnitive trigger,24.2%had a history of using gastric mucosa-irritating medications,24.2%developed bleeding after alcohol consumption,2.8%attributed it to improper diet,1.7%to emotional excitement,and 2.3%to fatigue preceding the bleeding ***-induced ANVUGIB was more prevalent in the elderly than middle-aged and young individuals,while bleeding due to alcohol consumption showed the opposite ***,diet-related bleeding was more common

关键词： Acute non-varicose upper gastrointestinal bleeding Clinical characteristics Cause of disease Endoscopic homeostatic therapy

Microbiomics and metabolomics insights into the microbial regulation on the formation of flavor components in the traditional fermentation process of Chinese Hongqu aged vinegar

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food Science and Human Wellness 2024年第5期13卷 2765-2778页

作者： Shangong Tong Wenlong li Yuandong Rao Yanqin Xiao Yingyin Yan Weiling Guo Xucong Lü Jinyuan Sun lianzhong Ai li ni Institute of Food Science and Technology College of Biological Science and EngineeringFuzhou UniversityFuzhou 350108China Food Nutrition and Health Research Center School of Advanced ManufacturingFuzhou UniversityJinjiang 362200China School of Food Science and Technology Jiangnan UniversityWuxi 214122China Beijing Laboratory for Food Quality and Safety Beijing Technology and Business UniversityBeijing 100048China School of Health Science and Engineering University of Shanghai for Science and TechnologyShanghai 200093China

This study aimed to investigate microbial succession and metabolic dynamics during the traditional fermentation of Hongqu aged vinegar,and explore the core functional microbes closely related to the formation of flavor *** analysis demonstrated that Lactobacillus,Acetobacter,Bacillus,Enterobacter,Lactococcus,Leuconostoc and Weissella were the predominant bacterial genera,while Aspergillus piperis,Aspergillus oryzae,Monascus purpureus,Candida athensensis,***,Penicillium ochrosalmoneum and Simplicillium aogashimaense were the predominant fungal *** analysis revealed that Acetobacter was positively correlated with the production of tetramethylpyrazine,acetoin and acetic acid,Lactococcus showed positive correlation with the production of 2-nonanone,2-heptanone,ethyl caprylate,ethyl caprate,1-hexanol,1-octanol and 1-octen-3-ol,*** and *** were positively associated with the production of diethyl malonate,2,3-butanediyl diacetate,acetoin,benzaldehyde and ***,non-volatile metabolites were also detected through ultra-performance liquid chromatography-quadrupole time-of-flight mass spectrometry.A variety of amino acids and functional dipeptides were identified during the traditional brewing of Hongqu aged *** analysis revealed that Lactobacillus was significantly associated with DL-lactate,indolelactic acid,D-(+)-3-phenyllactic acid,pimelic acid,pregabalin and 3-aminobutanoic *** study is useful for understanding flavor formation mechanism and developing effective strategies for the suitable strains selection to improve the flavor quality of Hongqu aged vinegar.

关键词： Hongqu aged vinegar Traditional fermentation Microbial dynamics Flavor components Bidirectional orthogonal partial least squares

维普期刊数据库

同方期刊数据库

Analytical solution to incident angle quasi-phase-matching engineering for second harmonic generation in a periodic-poled lithium niobate crystal

在线全文

学校读者我要写书评

暂无评论

Chinese Physics B 2024年第2期33卷 115-123页

作者：洪丽红邱雅婷李晓霓陈宝琴李志远 State Key Laboratory of High Field Laser Physics Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800China School of Physics and Optoelectronics South China University of TechnologyGuangzhou 510640China

Phase matching or quasi-phase matching(QPM)is of significant importance to the conversion efficiency of second harmonic generation(SHG)in artificial nonlinear crystals like lithium niobate(LN)crystal or microstructured nonlinear crystals like periodic-poled lithium niobate(PPLN)*** this paper,we propose and show that the incident angle of pump laser light can be harnessed as an alternative versatile tool to engineer QPM for high-efficiency SHG in a PPLN crystal,in addition to conventional means of period adjusting or temperature tuning.A rigorous model is established and analytical solution of the nonlinear conversion efficiency under the small and large signal approximation theory is obtained at different incident *** variation of phase mismatching and walk-off length with incident angle or incident wavelength are also *** simulations for a PPLN crystal with first order QPM structure are used to confirm our theoretical predictions based on the exact analytical solution of the general large-signal *** results show that the narrow-band tunable SHG output covers a range of 532 nm–552.8 nm at the ideal incident angle from 0°to 90°.This theoretical scheme,fully considering the reflection and transmission at the air-crystal interface,would offer an efficient theoretical system to evaluate the nonlinear frequency conversion and help to obtain the maximum SHG conversion efficiency by selecting an optimum incident wavelength and incident angle in a specially designed PPLN crystal,which would be very helpful for the design of tunable narrow-band pulse nanosecond,picosecond,and femtosecond laser devices via PPLN and other microstructured LN crystals.

关键词： nonlinear frequency conversion transmission reflection lithium niobate

维普期刊数据库

Effectiveness of traditional chinese medicine nursing intervention on constipation and anxiety in chemotherapy

在线全文

学校读者我要写书评

暂无评论

Nursing Communications 2024年第10期8卷 1-6页

作者： Ming-Si Fan Hai-Lei Bian li ni Cardiac Intensive Care Unit Shanghai East Hospital of Tongji UniversityShanghai 200120China Operating Theatre Department Shanghai East Hospital of Tongji UniversityShanghai 200120China

Background:In a study conducted from March to September 2021,124 cancer patients undergoing chemotherapy at our hospital were divided into two *** control group received routine inpatient nursing care,while the observation group received Traditional Chinese Medicine(TCM)nursing interventions in addition to routine *** analysis was conducted to compare the incidence of clinical adverse reactions,constipation scores,and changes in anxiety levels between the two *** results showed that the observation group,receiving TCM nursing interventions,had lower incidence of clinical adverse reactions and lower constipation scores compared to the control ***,anxiety levels were found to decrease significantly in the observation group *** findings suggest that incorporating TCM nursing interventions in the care of cancer patients undergoing chemotherapy may help in reducing the occurrence of adverse reactions,alleviating constipation,and managing anxiety *** research is needed to explore the full potential of integrating TCM into conventional nursing care for cancer ***:Following interventions,both groups experienced varying degrees of clinical adverse reactions,with the observation group demonstrating a significantly lower total incidence(29.03%)compared to the control *** disparity was statistically significant(Pnificant difference in defecation difficulty and form,with the observation g

关键词： chemotherapy cancer TCM syndrome constipation anxiety

Pudilan Xiaoyan oral liquid regulates tissue inflammation and apoptosis in mice with influenza virus pneumonia

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Traditional Medicine Research 2024年第6期9卷 55-63页

作者： Shan Cao Shuang-Rong Gao Chen ni Zi-Han Geng Ying-li Xu Bo Pang Meng-Ping Chen Yu Zhang Shan-Shan Guo Yu-Jing Shi li-Qi ni Kun Wang Rong-Hua Zhao Xiao-Lan Cui Yan-Yan Bao Institute of Chinese Materia Medica China Academy of Chinese Medical SciencesBeijing 100700China Jumpcan Pharmaceutical Group Co. Ltd.Taizhou 225400China

Background:The influenza A virus is the primary cause of respiratory infections and poses a global health *** Xiaoyan oral liquid(PDL)exhibits anti-inflammatory and immunomodulatory *** is commonly employed in clinical practice to manage upper respiratory tract ***,there is still much to uncover regarding its potential therapeutic ***:Institute of cancer research mice were infected with influenza A virus via nasal *** general state of the mice,lung index,and lung index inhibition rate were used to evaluate the efficacy of ***-linked immunosorbent assay,western blotting,and immunohistochemistry were used to observe the presence of proteins and cytokines in the lung *** was evaluated using the TUNEL ***:PDL improved the mental state of influenza A virus-infected mice,reduced the lung index,and inhibited viral *** expression of interleukin-1βand tumor necrosis factor-αwere decreased,whereas the expression of interleukin-10 in the lung tissue was increased due to PDL *** addition,PDL treatment modulated Toll-like receptor 4 and MyD88 expressions in the lung *** significantly reduced apoptosis and decreased cleaved caspase-3 and PARP levels,whereas increased B-cell lymphoma-2 expression in the lung ***,the moderate-dose group of PDL exhibited a more pronounced *** findings indicate that PDL exerts a protective effect against pneumonia injury in influenza A virus-infected ***:PDL inhibited the inflammatory response and regulated apoptosis by regulating Toll-like receptor 4 and MyD88 protein expressions,thereby protecting the lung tissue from viral infection-induced lung tissue injury.

关键词： Pudilan Xiaoyan oral liquid influenza A virus immune response apoptosis Toll-like receptors

Psychometric validation of the Chinese version of the dry eye-related quality-of-life score questionnaire

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Ophthalmology(English edition) 2024年第9期17卷 1614-1620页

作者： Yu-Wen liu Shu-Jia Guo Jia-ni li Yu-Ting Zhang Wei-Jie Ouyang Yu-Qian Wang Cai-Hong Huang Yi liao Jiaoyue Hu Zuguo liu Xiamen University Affiliated Xiamen Eye Center Fujian Provincial Key Laboratory of Ophthalmology and Visual ScienceFujian Engineering and Research Center of Eye Regenerative MedicineEye Institute of Xiamen UniversitySchool of MedicineXiamen UniversityXiamen 361005Fujian ProvinceChina Department of Ophthalmology Xiang’an Hospital of Xiamen UniversityXiamen 361005Fujian ProvinceChina Department of Ophthalmology the First Affiliated Hospital of University of South ChinaHengyang 421001Hunan ProvinceChina

AIM:To psychometrically validate the Chinese version of the dry eye-related quality-of-life score questionnaire(DEQSCHN)among Chinese patients with dry ***:This study involved 231 participants,including 191 with dry eye disease(DED)comprising the dry eye disease group,and 40 healthy participants forming the control *** were required to complete the DEQS-CHN,and Chinese dry eye questionnaire and undergo clinical tests including the fluorescein breakup time(FBUT),corneal fluorescein staining(CFS),and Schirmer I *** assess the internal consistency and retest reliability,Cronbach’sαand the intraclass correlation coefficient(ICC)were *** validity was assessed by item-level content validity index(ICV)and an average scale-level content validity index(S-CVI/Ave).Construct validity was assessed by confirmatory factor *** concurrent validity was assessed by calculating correlations between DEQS-CHN and Chinese dry eye *** validity was evaluated through nonparametric tests,with receiver operating characteristic(ROC)curve serving as conclusive indicators of the questionnaire’s distinguishing ***:The Cronbach’sαcoefficients for frequency and degree of ocular symptoms,impact on daily life,and summary score were 0.736,0.704,0.811,0.818,0.861,and 0.860,respectively,and the ICC were 0.611,0.677,0.715,0.769,0.711,and 0.779,*** I-CVI scores ranged from 0.833 to 1.000,with an S-CVI/Ave of *** factor analysis results exhibited a wellfitting model consistent with the original questionnaire[χ^(2)/df=2.653,incremental fit index(IFI)=0.924,comparative fit index(CFI)=0.924,Tucker-Lewis index(Tli)=0.909,and root mean square error of approximation(RMSEA)=0.065].There was a moderate positive correlation between the DEQS-CHN and the Chinese dry eye questionnaire(r^(2)=0.588).The dry eye group demonstrated significantly higher scores compared to the control group,and the area under

关键词： dry eye quality-of-life questionnaire

基于知识图谱和GPT模型的可靠性代码自动生成方法

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

计算力学学报 2024年第2期41卷 217-225页

作者：向历霓李刚李海江大连理工大学工程力学系工业装备结构分析优化与CAE软件全国重点实验室大连116024 卡迪夫大学工程学院卡迪夫CF243AA

工程结构服役中广泛使用可靠性分析进行结构安全评估,但可靠性分析方法种类多、分析程序代码自动化程度低且复用难,需要研究可靠性代码自动生成方法。生成式预训练转换器GPT(Generative Pre-trained Transformer)模型已经在大量替代编... 详细信息

工程结构服役中广泛使用可靠性分析进行结构安全评估,但可靠性分析方法种类多、分析程序代码自动化程度低且复用难,需要研究可靠性代码自动生成方法。生成式预训练转换器GPT(Generative Pre-trained Transformer)模型已经在大量替代编程手工作业,进行代码自动生成。但是,其在工程领域中的应用受限于可学习数据量小和问题匹配度不高。本文提出了一种结合多种类可靠性知识图谱、基于GPT的代码自动完成模型进行Matlab可靠性代码预测的方法,使用精心设计的源代码预处理降噪策略,以及知识图谱传播模拟密集型任务解释意图;采用条件代码生成训练,有效提升了小数据样本量的学习性能,实现高准确率、问题匹配的可靠性代码自动生成。最后通过三个可靠性知识图谱案例验证了所提方法的有效性。

关键词：知识图谱结构可靠性 GPT Transformer 代码生成

维普期刊数据库博看期刊

在线全文

学校读者我要写书评

暂无评论

多机任务分配与路径规划协同优化法研究

系统仿真学报 2024年第5期36卷 1141-1151页

作者：肖鹏谢锋倪海鸿张敏汤志荔李霓西北工业大学航空学院陕西西安710072 中国航空工业集团公司成都飞机设计研究所四川成都610091 西安市飞行器智能认知与控制重点实验室陕西西安710072

针对多无人机执行多目标协同侦察的任务需求,提出了多机多目标任务分配与路径规划的协同优化方法。以单亲遗传算法(partheno genetic algorithms,PGA)为基础,基于Dubins曲线构建了与实际路径代价相结合的代价函数;为进一步减小计算量,... 详细信息

针对多无人机执行多目标协同侦察的任务需求,提出了多机多目标任务分配与路径规划的协同优化方法。以单亲遗传算法(partheno genetic algorithms,PGA)为基础,基于Dubins曲线构建了与实际路径代价相结合的代价函数;为进一步减小计算量,提出了基于无人机探测距离的聚类算法,将生成的聚类点作为无人机新的航路点。仿真结果表明:在考虑禁飞区域以及侦察点繁多情况下,该算法能够有效完成无人机的侦察任务分配并同时形成初步航路,提高了任务分配的合理性和收敛速度,并降低了全局代价。

关键词：多机协同单亲遗传算法任务聚类任务分配航路规划协同优化

维普期刊数据库博看期刊

在线全文

学校读者我要写书评

暂无评论

内蒙古达里诺尔晚新生代火山裂隙喷发特征

地震地质 2024年第4期46卷 876-892页

作者：常枥文赵勇伟李霓孙金恒中国地震局地质研究所吉林长白山火山国家野外科学观测研究站北京100029

内蒙古锡林郭勒盟地区分布近万平方千米的熔岩台地,它们是裂隙式火山喷发的产物。这类火山作用在晚新生代以来仍有过强烈活动,未来具有潜在喷发危险性。锡林郭勒盟达里诺尔火山群中的贝力克地区分布了该区域形成时代最晚的熔岩台地。文... 详细信息

内蒙古锡林郭勒盟地区分布近万平方千米的熔岩台地,它们是裂隙式火山喷发的产物。这类火山作用在晚新生代以来仍有过强烈活动,未来具有潜在喷发危险性。锡林郭勒盟达里诺尔火山群中的贝力克地区分布了该区域形成时代最晚的熔岩台地。文中以贝力克熔岩台地为研究对象,分析其喷发特征,研究熔岩喷发时的温度、黏度和流动速度,以限定其灾害效应。区内火山产物主要由结壳熔岩组成,在接近喷发裂隙地区成群出露高3~8m、长数十米至数百米的低矮山脊,推测该熔岩脊代表近火口熔岩地貌。在距喷发裂隙较远处(>3km),熔岩流整体呈带状分布,熔岩流中部隆起,向两侧边缘呈外倾产状,显示熔岩堤特征。在距喷发裂隙最远的熔岩台地边缘,熔岩表面平坦,常出现大型龟裂状裂理。一些台地边缘剖面显示出层状熔岩相互叠置的特点,说明其流动过程以层流形式进行。这些地质特征均符合溢流玄武岩喷发的特征。全岩地球化学和矿物地球化学研究表明研究区的熔岩属于橄榄拉斑玄武岩和碱性橄榄玄武岩,熔岩中包含橄榄石和单斜辉石(主要为普通辉石)斑晶。利用单斜辉石-熔体地质温压计估算得到贝力克熔岩的喷发温度为1123.2~1173.4℃,利用前人的黏度计算模型得到熔岩喷发时的黏度为30~187Pa·S。在此基础上,文中计算了研究区发生溢流玄武岩喷发时熔岩的流动速度大部分在0.4~1m/s区间内,个别熔岩流速度可达2.5m/s。文中揭示了贝力克地区溢流玄武岩喷发特征,限定了岩浆喷发温度、黏度和速度等物理参数,可为未来火山喷发灾害防御提供基础数据支撑。

关键词：火山裂隙晚新生代火山达里诺尔熔岩流动速度