检索结果-南通市图书馆

Precision Clinical Medicine 2020年第2期3卷 147-152页

作者： jie-ying Zhao Hua Zhuang Yuan Luo Ming-gang Su Mo-li Xiong Yu-ting Wu Department of Ultrasound West China Hospital of Sichuan University37#Guo Xue XiangChengduSichuan 610041China Department of Nuclear Medicine Imaging West China Hospital of Sichuan University37#Guo Xue XiangChengduSichuan 610041China Department of Pathology West China Hospital of Sichuan University37#Guo Xue XiangChengduSichuan 610041China

A 57-year-old male presenting with spontaneously relieved abdominal cramp and distension was admitted to theWest China *** diagnosis remained unclear after colonoscopy and computed *** contrast-enhanced ultrasonography was then performed and a neoplasm in the small intestine was suspected,supported by a thin-section computed tomography and positron emission tomography/computed *** was confirmed pathologically after surgery to be a small intestinal G1 neuroendocrine *** was performed to remove approximately 25 cm of small bowel and a 3-cm solid mass located in the *** patient had a complete recovery and was tumor-free at the final *** intestinal tumors including neuroendocrine tumors have always posed a diagnostic *** case indicated that double contrastenhanced ultrasonography is feasible in detection of small intestinal neuroendocrine tumors,and it may be an advisable approach assisting diagnosis of small intestinal tumors.

关键词： double contrast-enhanced ultrasonography neuroendocrine tumor small intestinal tumor carcinoid

间歇经口至食管管饲法对脑卒中吞咽障碍患者病耻感和吸入性肺炎的影响

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中国当代医药 2024年第25期31卷 61-65页

作者：纪红许莉莎张凤平赵莹李霞郝建成宫为大安徽省芜湖市第一人民医院康复医学科安徽芜湖241000

目的探讨间歇经口至食管管饲法(IOE)对脑卒中后吞咽障碍(PSD)患者的病耻感和吸入性肺炎(AP)的影响。方法选取2021年1月至2023年6月芜湖市第一人民医院收治的52例脑卒中患者作为研究对象,按照随机数字表法将入组患者分为IOE组(26例)与留... 详细信息

目的探讨间歇经口至食管管饲法(IOE)对脑卒中后吞咽障碍(PSD)患者的病耻感和吸入性肺炎(AP)的影响。方法选取2021年1月至2023年6月芜湖市第一人民医院收治的52例脑卒中患者作为研究对象,按照随机数字表法将入组患者分为IOE组(26例)与留置鼻胃管法(CNG)组(26例)。IOE组采取经口至食管管饲法进食,CNG组则采取留置胃管法进食,两组患者均同时进行常规康复治疗。比较两组患者在入院后1周、治疗30 d时脑卒中患者病耻感量表(SSS)评分及AP发生率。结果IOE组治疗30 d时SSS量表分值低于CNG组,差异有统计学意义(P<0.05)。IOE组住院期间AP发生率低于CNG组,差异有统计学意义(P<0.05)。结论IOE法能够有效降低脑卒中吞咽障碍患者的病耻感及降低住院期间AP发生率。

关键词：脑卒中后吞咽障碍间歇经口至食管管饲病耻感吸入性肺炎

9,10-二氢苯并[h]香豆素类化合物的双羟化反应研究及酯化产物的合成

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有机化学 2010年第5期30卷 726-730页

作者：王洁夏鹏王洋复旦大学药学院药物化学教研室上海201203 中国科学院上海药物研究所新药研究国家重点实验室上海201203

报道了在9,10-二氢苯并[h]香豆素类化合物1a,1b的不对称双羟化反应中,除了得到正常的cis-7,8-双羟化产物2a,2b外,还以中等收率(52%和45%)得到了过度氧化产物7-羰基-8-羟基化合物3a,3b,并讨论了氧化剂用量及反应温度对产物分布的影响.双... 详细信息

报道了在9,10-二氢苯并[h]香豆素类化合物1a,1b的不对称双羟化反应中,除了得到正常的cis-7,8-双羟化产物2a,2b外,还以中等收率(52%和45%)得到了过度氧化产物7-羰基-8-羟基化合物3a,3b,并讨论了氧化剂用量及反应温度对产物分布的影响.双羟化产物2a,2b的ee值通过其樟脑酯化产物4a,4b的1HNMR图谱所示的非对映异构体比例进行了初步推测.

关键词： 9 10-二氢苯并嘲香豆素双羟化反应过度氧化樟脑酯化产物

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金线莲人工种子包裹材料研究

云南农业科技 2024年第3期 4-8页

作者：金美芳杨慧清方依霞蔡凤媛周莹林莲婷福建技术师范学院食品与生物工程学院福建福州350300 现代设施农业福建省高校工程研究中心福建福州350300 吉首大学化学化工学院湖南吉首416000

以金线莲茎段为繁殖体,以5%海藻酸钠为基础,分别与不同质量浓度的甲基纤维素和壳聚糖混合制备种皮,以MS+NAA 0.2 mg·L~(-1)+GA_30.1 mg·L~(-1)+6-BA 0.5 mg·L~(-1)+青霉素0.4 mg·L~(-1)+0.3%多菌灵粉剂+0.2%苯甲酸钠+0.1%蔗糖为人... 详细信息

以金线莲茎段为繁殖体,以5%海藻酸钠为基础,分别与不同质量浓度的甲基纤维素和壳聚糖混合制备种皮,以MS+NAA 0.2 mg·L~(-1)+GA_30.1 mg·L~(-1)+6-BA 0.5 mg·L~(-1)+青霉素0.4 mg·L~(-1)+0.3%多菌灵粉剂+0.2%苯甲酸钠+0.1%蔗糖为人工胚乳,滴珠法制备人工种子,测定人工种子在不同储藏条件下的失水率、萌发率,筛选出适合金线莲的人工种子制备方法。结果表明,甲基纤维素和壳聚糖2种复合材料制备的人工种皮均随其添加浓度增高,失水率减少;均随储藏时间的延长和储藏温度的增高,失水率增加。同时随着储藏时间的延长,人工种子萌发率降低,其中添加0.5%甲基纤维素的在贮存40 d内萌发率降低不明显;添加2%甲基纤维素的储藏40 d与20 d相比萌发率有明显降低;添加3.5%甲基纤维素的随储藏天数的延长萌发率大幅下降。以5%海藻酸钠+2%甲基纤维素为种皮材料,4℃下黑暗贮藏20 d,所制备的人工种子在MS琼脂培养基萌发率最高,为55.6%。

关键词：金线莲人工种子甲基纤维素壳聚糖

Epidemiological and clinical characteristics of COVID-19 patients in Hengyang,Hunan Province,China

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World Journal of Clinical Cases 2020年第12期8卷 2554-2565页

作者： Zhe-Feng Zhong Jia Huang xia Yang Jin-Ling Peng xiao-Yan Zhang Yang Hu Nian Fu Hai-Lian Lin Bo Jiang Ya-ying Tian Hong-Yi Yao Li-Pu Deng xiao-Qing Tang jie-Can Zhou Jian Tang xia Xie Qiong Liu Jing Liu Cheng-Yun Dou Rong-Juan Dai Bo Yan Xue-Feng Yang Department of Infectious Diseases the Affiliated Nanhua HospitalHengyang Medical CollegeUniversity of South ChinaHengyang 421002Hunan ProvinceChina Department of Gastroenterology the Affiliated Nanhua HospitalHengyang Medical CollegeUniversity of South ChinaHengyang 421002Hunan ProvinceChina Department of General Practice the Affiliated Nanhua HospitalHengyang Medical CollegeUniversity of South ChinaHengyang 421002Hunan ProvinceChina Department of Intensive Medicine the Affiliated Nanhua HospitalHengyang Medical CollegeUniversity of South ChinaHengyang 421002Hunan ProvinceChina Institute of Clinical Medicine the First Affiliated HospitalHengyang Medical CollegeUniversity of South ChinaHengyang 421001Hunan ProvinceChina Department of Infectious Diseases the First Affiliated HospitalHengyang Medical CollegeUniversity of South ChinaHengyang 421001Hunan ProvinceChina Department of Cardiology the First Affiliated HospitalHengyang Medical CollegeUniversity of South ChinaHengyang 421001Hunan ProvinceChina

BACKGROUND In December 2019,an ongoing outbreak of coronavirus disease 2019(COVID-19)was first identified in Wuhan,*** characteristics of COVID-19 patients treated in local hospitals in Wuhan are not fully representative of patients outside ***,it is highly essential to analyze the epidemiological and clinical characteristics of COVID-19 in areas outside Wuhan or Hubei *** date,a limited number of studies have concentrated on the epidemiological and clinical characteristics of COVID-19 patients with different genders,clinical classification,and with or without basic *** To study the epidemiological and clinical characteristics of COVID-19 patients in Hengyang(China)and provide a reliable reference for the prevention and control of *** From January 16 to March 2,2020,a total of 48 confirmed cases of COVID-19 were reported in Hengyang,and those cases were included in this *** diagnostic criteria,clinical classification,and discharge standard related to COVID-19 were in line with the Diagnosis and Treatment Protocol for Novel Coronavirus Pneumonia(Trial Version 7)released by National Health Commission and National Administration of Traditional Chinese *** presence of SARS-CoV-2 in pharyngeal swab specimens was detected by quantitative reverse transcription polymerase chain *** the data were imported into the excel worksheet and statistically analyzed by using SPSS 25.0 *** A total of 48 cases of COVID-19 were collected,of which 1 was mild,38 were moderate,and 9 were *** was unveiled that there were 31(64.6%)male patients and 17(35.4%)female patients,with a female-to-male ratio of 1.82:*** range of age of patients with COVID-19 was dominantly 30-49 years old[25(52.1%)of 48],followed by those aged over 60 years old[11(22.9%)].Besides,29.2%(14 of 48)of patients had basic diseases,and 57.2%(8 of 14)of patients with basic diseases were aged over 60 years *** occupations of 48 CO

关键词： Novel coronavirus pneumonia COVID-19 SARS-CoV-2 Epidemiology Hengyang Coronavirus disease 2019

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不同颜色樱桃番茄品质研究

食品工业 2024年第1期45卷 104-108页

作者：王仁杰夏海波蔡红明郭莹高珏晓张忠义全国蔬菜质量标准中心潍坊262700 寿光市文家街道农业农村服务中心寿光262700

为进一步探究樱桃番茄颜色与品质之间关系,为培育优质樱桃番茄提供依据,测定5个颜色的15个品种樱桃番茄的营养品质、感官品质和外观品质,并对其颜色数据和感官评价得分进行分析。结果表明:不同颜色樱桃番茄品质差异较大,VB和VC红色品种... 详细信息

为进一步探究樱桃番茄颜色与品质之间关系,为培育优质樱桃番茄提供依据,测定5个颜色的15个品种樱桃番茄的营养品质、感官品质和外观品质,并对其颜色数据和感官评价得分进行分析。结果表明:不同颜色樱桃番茄品质差异较大,VB和VC红色品种樱桃番茄含量最高,粉色含量较低;绿色和黄色品种的樱桃番茄不含番茄红素和β-胡萝卜素,而红色相较紫色和粉色含有较多的番茄红素,但三者β-胡萝卜素含量差异不大;不同颜色樱桃番茄蛋白质含量接近,氨基酸总量粉色品种含量较高;外观品质的颜色指标(L和b)显著影响感官品质的果型和颜色得分,以及感官评价总分,表现为黄色是最受喜欢的樱桃番茄颜色,而绿色樱桃番茄感官评价总分最高。因此通过颜色可对番茄品质进行一定判定,为培育更受消费者喜爱的樱桃番茄品种提供理论依据和为消费者选购樱桃番茄提供建议。

关键词：樱桃番茄颜色营养品质感官品质外观品质

Scale Effect of Climate and Soil Texture on Soil Organic Carbon in the Uplands of Northeast China

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Pedosphere 2010年第4期20卷 525-535页

作者： WANG Dan-Dan SHI Xue-Zheng WANG Hong-jie D. C. WEINDORF YU Dong-Sheng SUN Wei-xia REN Hong-Yan ZHAO Yong-Cun State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil Science Chinese Academy of SciencesNanjing 210008 （China） College of Remote Sensing Nanjing University of Information Science and Technology Nanjing 210044 （China） Louisiana State University AgCenter Baton Rouge Louisiana 70803 （USA） Graduate University of the Chinese Academy of Sciences Beijing 100049 （China）

Understanding how spatial scale influences commonly-observed effects of climate and soil texture on soil organic carbon （SOC） storage is important for accurately estimating the SOC pool at different scales. The relationships among climate factors, soil texture and SOC density at the regional, provincial, city, and county scales were evaluated at both the soil surface （0-20 cm） and throughout the soil profile （0-100 cm） in the Northeast China uplands. We examined 1 022 profiles obtained from the Second National Soil Survey of China. The results indicated that the relationships between climate factors and SOC density generally weakened with decreasing spatial scale. The provincial scale was optimal to assess the relationship between climate factors and SOC density because regional differences among provinces were covered up at the regional scale. However, the relationship between soil texture and SOC density had no obvious trend with increasing scale and changed with temperature. There were great differences in the impacts of climate factors and soil texture on SOC density at different scales. Climate factors had a larger effect on SOC density than soil texture at the regional scale. Similar trends were seen in Heilongjiang and eastern Inner Mongolia at the provincial scale. But, soil texture had a greater effect on SOC density compared with climate factors in Jilin and Liaoning. At the city and county scales, the influence of soil texture on SOC density was more important than climate factors.

关键词： factor precipitation spatial scale temperature

Traditional Chinese medicine treatment for COVID-19:An overview of systematic reviews and meta-analyses

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Journal of Integrative Medicine 2022年第5期20卷 416-426页

作者： Han-ting Wu Cong-hua Ji Rong-chen Dai Pei-jie Hei Juan Liang xia-qiu Wu Qiu-shuang Li Jun-chao Yang Wei Mao Qing Guo School of Public Health Zhejiang Chinese Medical UniversityHangzhou 310053Zhejiang ProvinceChina The First Affiliated Hospital of Zhejiang Chinese Medical University Hangzhou 310006Zhejiang ProvinceChina

Background:Coronavirus disease 2019(COVID-19)is a rapidly spreading disease that has caused an extensive burden to the ***,a large number of clinical trials have examined the efficacy of traditional Chinese medicine(TCM)for treating and preventing COVID-19,with coinciding proliferation of reviews summarizing these ***:This study aimed to evaluate the methodological quality and evidence quality of systematic reviews and meta-analyses on the efficacy of *** strategy:Seven electronic databases,including PubMed,Cochrane Library,Web of Science,China National Knowledge Infrastructure,Chongqing VIP,Wanfang Data and SinoMed,were searched for systematic reviews and meta-analyses in October *** terms such as“Chinese medicine,”“Lianhua Qingwen”and“COVID-19”were *** criteria:Systematic reviews and meta-analyses of randomized controlled trials that evaluated the efficacy of TCM treatment of COVID-19 were *** extraction and analysis:A Measurement Tool to Assess Systematic Reviews Version 2.0(AMSTAR 2)was used to evaluate the methodological *** quality of evidence was graded using the Grading of Recommendations Assessment,Development,and Evaluation(GRADE)*** extraction and analysis were performed by two reviewers ***:There were 17 meta-analyses included in our *** intervention group was defined as TCM combined with Western medicine,while the control group was Western medicine *** methodological quality of all the included studies was moderate to poor.A total of 89 outcome indicators were evaluated,of which,8 were rated as moderate quality,39 as low quality,and 41 as very low *** one outcome measure was graded as being of high *** moderate quality of evidence indicated that,for the treatment of COVID-19,the clinical efficacy of TCM in combination with Western medicine was better,in terms of lung recovery,rate of conversion to severe/critical cases,sympt

关键词： Medicine Chinese traditional Integrative medicine COVID-19 Systematic review Meta-analysis

Effects of low molecular weight heparin on clot rate and activated clotting time： an in vitro study

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Chinese Medical Journal 2013年第18期126卷 3553-3556页

作者： SHI Xu-bo BAI ying LI jie xiaO jie WANG Jian-qi ZHENG Hua Cardiovascular Center Beijing Tongren Hospital Capital Medical University Beijing 100730 China

Background Due to lack of point-of-care testing, the use of low-molecular-weight heparin （LMWH） therapy in some special patients is restricted. This study was designed to explore the effects of LMWH on clot rate （CR） and activated clotting time （ACT）, and to search for an appropriate method for bedside monitoring of anticoagulant activity of LMWH. Methods Thirty-two healthy volunteers were selected from the staff of Beijing Tongren Hospital. CR and ACT were measured with different reagents （glass beads, diatomite, kaolin and magnetic bar） on blood samples spiked with increasing concentrations of LMWH （dalteparin, 0.2-1.8 IU/ml）. Correlations between concentrations of LMWH and values of CR and ACT were analysed based on the data obtained and regression analysis was performed to establish a regression equation. Results With the increase in doses of dalteparin, CR values reduced gradually. The values of CR of four reagents （glass beads, diatomite, kaolin and magnetic bar） were 20.4-4.5 IU/min, 27.4-6.9 IU/min, 27.5-7.9 IU/min and 7.8-0.1 IU/min respectively and an linear relationship was observed between the CR values and dalteparin concentrations （P〈0.05）. The values of ACT were 173-615 seconds, 130-270 seconds, 123-226 seconds, 337-1411 seconds respectively, which showed a linear regression between the ACT values and dalteparin concentrations （P〈0.01）. Differences in slope of the regression curves of ACT were observed with all the reagents tested （glass beads 248.2 s/IU, diatomite 74.8 s/IU, kaolin 58.2 s/IU and magnetic bar 1112.2 s/IU, P〈0.01）. While the minimum concentration of dalteparin was 0.2 IU/ml, 0.4 IU/ml, 1.4 IU/ml and 0.2 IU/ml separately, the ACT values of the four coagulants （glass beads, diatomite, kaolin and magnetic bar） were beyond the normal limit and showed a noticeable increase respectively （P〈0.01）. Conclusions This study showed that there was an excellent linear relationship between the CR and ACT values and dalteparin concentrations for all t

关键词： clot rate activated clotting time low molecular weight heparin

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土壤原生生物的生态功能及其影响因素

植物营养与肥料学报 2024年第1期30卷 160-179页

作者：曹文超王娅静宋贺李艳青赵飞徐海成田素波李英杰尹俊慧郭景恒王敬国潘好芹潍坊科技学院山东省高校设施园艺实验室山东寿光262700 寿光蔬菜产业控股集团有限公司山东寿光261000 河北农业大学资源与环境科学学院河北保定071000 安徽农业大学农学院安徽合肥230036 中国农业大学资源与环境学院北京100193

【目的】土壤原生生物是指土壤中除植物、动物和真菌以外的所有真核生物,具有明显的系统发育和功能多样性特征,是地下生态系统的关键组成部分之一。与原核生物(细菌与古菌)和真菌相比,原生生物在土壤食物网中的作用常被忽视。本文系统... 详细信息

【目的】土壤原生生物是指土壤中除植物、动物和真菌以外的所有真核生物,具有明显的系统发育和功能多样性特征,是地下生态系统的关键组成部分之一。与原核生物(细菌与古菌)和真菌相比,原生生物在土壤食物网中的作用常被忽视。本文系统论述了土壤原生生物的多样性及其生态功能,并综述了土壤养分、水分、pH、温度、重金属、微塑料等因子对土壤原生生物的影响,旨在阐明原生生物对土壤养分转化、土壤食物网和植物健康的生态作用及对主要环境因子的响应。【进展】土壤原生生物的数量、大小与形态各异,且营养级类群多样性丰富,它们可作为光合藻类、微生物捕食者、植物与动物的寄生者,在土壤食物网中扮演重要角色。光合型原生生物除潜在提高土壤氧浓度外,对陆地生态系统的碳储存具有重要贡献。消费型原生生物可通过捕食改变微生物群落,推动土壤微生物环,抑制植物病害,并提高植物性能。寄生型原生生物常被认为对宿主具有负面效应,如改变动物多样性,并引起植物病害。然而,寄生型原生生物对推动养分(如磷)循环也有贡献,且对植物的叶际细菌具有生防功能。总的来看,原生生物推动了陆地生态系统物质循环与能量流动向更高营养级的转移,并在土壤食物网中占据中心位置,发挥着关键生态功能。【展望】未来可从原生生物多样性特征及其维持机制、原生生物与其他土壤微生物或动物(如蚯蚓、线虫等)的互作与代谢关系、原生生物对土壤食物网物质循环与能量流动的贡献及相关影响因素进行深入研究。此外,原生生物生防剂的资源开发与应用,将利于缓解土壤与植物农药残留,也对保障土壤健康及其可持续利用与发展具有重要意义。

关键词：原生生物多样性生态功能功能类群环境因子