检索结果-南通市图书馆

Jaundice in the newborn at the Teaching Hospital of Brazzaville

在线全文

学校读者我要写书评

暂无评论

Open Journal of Pediatrics 2019年第2期9卷 111-118页

作者： Gaston Ekouya Bowassa Giresse Tsouassa wa ngono neli Yvette ngakengni Engoba Moyen Koumou Onanga Steve Missambou Mandilou Georges Moyen Faculty of Health Sciences Marien NGOUABI University of Brazzaville Brazzaville Congo Department of neonatology University Hospital of Brazzaville Brazzaville Congo Department of Biochimy University Hospital of Brazzaville Brazzaville Congo

Introduction: Jaundice is a major symptom during neonatal time. It is defined by a bilirubin ≥ 50 mg/l. Objectives: To determine the frequency of neonatal jaundice at the Brazzaville University Hospital, to determine the main etiologies, to evaluate the management, to specify the evolution. Patients and Method: It was a prospective and descriptive study that was conducted in the neonatology Department and Biochemistry Laboratory of the University Hospital of Brazzaville, from 1st August 2015 to 31st July 2016. It included newborn children admitted into the neonatal unit for treatment of jaundice. The variables studied were epidemiological, clinical, etiological therapy and outcome. Results: The frequency of the neonatal jaundice is 7.2%. The hyperbilirubinemia as not conjugated was found in 99.1% of cases. The main causes are bacterial neonatal infection n = 102 (47.9%), the physiological icterus n = 46 (21.6%) and the ABO incompatibility n = 40 (18.8%). The treatment consists of the phototherapy in all cases. Each phototherapy session lasts 3 hours n = 99 (56.9%), 6 hours n = 58 (33.3%) and 12 hours n = 17 (9.8%). The average duration of the administering of the therapy is of 3 ± 2 days. Hyperbilirubinemia encephalopathy occurred in 62 (29.1%) cases, including 49 cases of kernicterus. The death occurred in 70 (32.9%) children. Conclusion: The importance and the gravity of the neonatal jaundice require primary preventive means based on proper care in pregnancy and the birth. While the secondary prevention includes high index of suspicion, comprehensive diagnostic equipment availability to prevent acute bilirubin encephalopathy.

关键词： Jaundice neonatal Phototherapy Bilirubin Encephalopathy

Azolla-A Model Organism for Plant Genomic Studies

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Genomics, Proteomics & Bioinformatics 2003年第1期1卷 15-25页

作者： Yin-Long Qiu, Jun Yu1 Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI 48109-1048, USA 2 Beijing Genomics Institute, Chinese Academy of Scicences, Beijing 101300, China 3 University of washington Genome Center, Seattle, wa 98195, USA Department of Ecology and Evolutionary Biology University of Michigan Ann Arbor MI 48109-1048 USA. yqiu@bio.umass.edu

The aquatic ferns of the genus Azolla are nitrogen-fixing plants that have great potentials in agricultural production and environmental conservation. Azolla in many aspects is qualified to serve as a model organism for genomic studies because of its importance in agriculture, its unique position in plant evolution, its symbiotic relationship with the n2-fixing cyanobacterium, Anabaena azollae, and its moderate-sized genome. The goals of this genome project are not only to understand the biology of the Azolla genome to promote its applications in biological research and agriculture practice but also to gain critical insights about evolution of plant genomes. Together with the strategic and technical improvement as well as cost reduction of DnA sequencing, the deciphering of their genetic code is imminent.

关键词： Azolla nitrogen fixation genome model organism

研磨加工层对高碳铬轴承钢超长寿命疲劳行为的影响

在线全文

学校读者我要写书评

暂无评论

机械工程学报 2007年第2期43卷 115-121页

作者：鲁连涛盐泽和章西野精一西南交通大学牵引动力国家重点实验室成都610031 富山大学工学部

为了阐明磨石研磨加工层对高碳铬轴承钢JIS SUJ2超长寿命疲劳行为的影响,分别使用经砂纸研磨和电解研磨的砂漏形试样,在室温空气环境下进行旋转弯曲疲劳试验。砂纸研磨试样被除去部分磨石研磨层,电解研磨试样被除去了全部的磨石研磨层... 详细信息

为了阐明磨石研磨加工层对高碳铬轴承钢JIS SUJ2超长寿命疲劳行为的影响,分别使用经砂纸研磨和电解研磨的砂漏形试样,在室温空气环境下进行旋转弯曲疲劳试验。砂纸研磨试样被除去部分磨石研磨层,电解研磨试样被除去了全部的磨石研磨层。结果表明,两种试样的S-n曲线由位于短寿命区的表面破坏模式和位于长寿命区的内部破坏模式的两条组成,表面破坏模式的S-n曲线受表面粗糙度和表面压缩残余应力的影响。内部破坏模式的S-n曲线不受表面条件的影响,是材料固有的特性。砂纸研磨试样表面破坏模式的疲劳极限最高,是电解研磨试样1．11倍和磨石研磨的1．20倍。表面压缩残余应力对表面破坏模式疲劳极限的影响可以用修正Goodman图表示。还讨论裂纹的萌生和扩展条件,推定超长寿命的疲劳极限。

关键词：超长寿命疲劳研磨加工层 S-n曲线表面裂纹内部裂纹非金属夹杂物鱼眼轴承钢

新建双线铁路有砟轨道无缝线路换铺法施工技术改进

在线全文

学校读者我要写书评

暂无评论

价值工程 2016年第9期35卷 99-101页

作者：高娃中铁十七局集团有限公司太原030000

本文在对换铺法深入了解的基础上,结合目前新建双线有砟无缝线路的施工特点和工程实例,介绍了对现有换铺技术提出的改进思路,和自主开发的实用性装置,在提高工效、降低安全风险、降低劳动强度、节省成本等方面取得了显著的综合效益,谨... 详细信息

本文在对换铺法深入了解的基础上,结合目前新建双线有砟无缝线路的施工特点和工程实例,介绍了对现有换铺技术提出的改进思路,和自主开发的实用性装置,在提高工效、降低安全风险、降低劳动强度、节省成本等方面取得了显著的综合效益,谨供同类工程参考。

关键词：有砟轨道无缝线路 500m长钢轨换铺法

Eu^(3+)、Gd^(3+)共掺杂介孔ZrO_2的制备及其发光性质

在线全文

学校读者我要写书评

暂无评论

内蒙古师范大学学报（自然科学汉文版） 2012年第3期41卷 284-288页

作者：呼德力格尔高娃莎仁内蒙古师范大学化学与环境科学学院内蒙古自治区功能材料物理与化学重点实验室内蒙古呼和浩特010022

在表面活性剂存在的条件下,利用尿素沉淀法制备了Eu3+、Gd3+共掺介孔ZrO2粉体.通过X射线衍射,n2吸附-脱附及差热热重等对样品进行了表征.用荧光光度计测试了样品的激发光谱和发射光谱,并研究了Gd3+对介孔ZrO2:Eu3+中Eu3+的发光性质的影... 详细信息

在表面活性剂存在的条件下,利用尿素沉淀法制备了Eu3+、Gd3+共掺介孔ZrO2粉体.通过X射线衍射,n2吸附-脱附及差热热重等对样品进行了表征.用荧光光度计测试了样品的激发光谱和发射光谱,并研究了Gd3+对介孔ZrO2:Eu3+中Eu3+的发光性质的影响.结果表明:前驱沉淀物经500℃焙烧处理4h后,得到四方相介孔ZrO2:Eu3+、Gd3+;在ZrO2:Eu3+、Gd3+共掺杂体系中Eu3+的发光强度明显强于Eu3+的单一掺杂,说明Gd3+对ZrO2:Eu3+体系的发光有较强的敏化作用.

关键词：介孔ZrO2:Eu3+、Gd3+ 发光性质共掺杂

在线全文

学校读者我要写书评

暂无评论

关于组合幂和式的渐近展开

大连理工大学学报 2009年第3期49卷 463-468页

作者：乌云高娃王天明大连理工大学应用数学系辽宁大连116024 内蒙古大学数学科学学院内蒙古呼和浩特010021

利用发生函数方法给出了组合和式∑nk=0nkkl的精确公式,从而得到了与第二类Stirling数有关的恒等式,并且进一步研究了组合幂和式∑nk=0nkrkl和∑nk=1nkr1kl的渐近性.首先借助于分析学工具和渐近估计方法定出整个和式起决定性作用的部分... 详细信息

利用发生函数方法给出了组合和式∑nk=0nkkl的精确公式,从而得到了与第二类Stirling数有关的恒等式,并且进一步研究了组合幂和式∑nk=0nkrkl和∑nk=1nkr1kl的渐近性.首先借助于分析学工具和渐近估计方法定出整个和式起决定性作用的部分∑k∈Ankkl(其中A={k:1/2-ε≤k/n≤1/2+ε}),然后通过Euler-Maclaurin求和公式估计和式∑k∈Ankkl,最后给出了组合幂和式的完全渐近展开式.

关键词：组合和式 Stirling数渐近展开

Comparison of High-Frequency Oscillation Ventilation with Conventional Mandatory Ventilation in Animal ARDS Model

在线全文

学校读者我要写书评

暂无评论

上海第二医科大学学报 2005年第10期25卷 1091-1091页

作者： SHI Guo-chao HUAnG Shao-guang LI Min DEnG Wei-wa wan Huan-ying Department of Respiratory Medicine Ruijin Hospital Shanghai Second Medical University Shanghai 200025 China

Modulation of the suppressive effect of corticosterone on adult rat hippocampal cell proliferation by paroxetine

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

neuroscience Bulletin 2007年第3期23卷 131-136页

作者：邱光 Daiga M.HELMESTE Asanka n.SAMARAnAYAKE 刘汇文李湄珍邓兆华苏国辉香港大学医学院解剖学系加州大学尔湾分校精神医学系香港大学医学院精神医学系香港大学社会科学院心理学系脑神经心理实验室

Objective The literature has shown that cognitive and emotional changes may occur after chronic treatment with glucocorticoids. This might be caused by the suppressive effect of glucocorticoids on hippocampal neurogenesis and cell proliferation. Paroxetine, a selective serotonin reuptake transporter, is a commonly used antidepressant for alleviation of signs and symptoms of clinical depression. It was discovered to promote hippocampal neurogenesis in the past few years and we wanted to investigate its interaction with glucocorticoid in this study. Methods Adult rats were given vehicle, corticosterone, paroxetine, or both corticosterone and paroxetine for 14 d. Cell proliferation in the dentate gyrus was quantified using 5-bromo-2-deoxyuridine （BrdU） immunohistochemistry. Results The corticosterone treatment suppressed while paroxetine treatment increased hippocampal cell proliferation. More importantly, paroxetine treatment could reverse the suppressive effect of corticosterone on hippocampal cell proliferation. Conclusion This may have clinic application in preventing hippocampal damage after glucocorticoid treatment.

关键词： paroxetine bromodeoxyuridine corticosterone hippocampus cell proliferation neurogenesis

Preterm Birth at the Community University Hospital Center (Central African Republic)

在线全文

学校读者我要写书评

暂无评论

Open Journal of Obstetrics and Gynecology 2020年第7期10卷 886-891页

作者： A. Koirokpi G. R. D. L. Kogboma Wongo n. R. ngbale S. Ouapou S. Matoulou-Mbala-wa-ngogbe W. H. Komaria Mballa J. D. D. Longo A. Sepou Gynaecology-Obstetrics Service of the Bangui Community Hospital Bangui Central African Republic Department of Public Health of the University of Bangui Bangui Central African Republic

The preterm Birth is the main cause of hospitalizing in the pathologic pregnancy service because of its deadly and morbidity rate observing into new born. The purpose of this Study: The purpose of this study is to stu... 详细信息

The preterm Birth is the main cause of hospitalizing in the pathologic pregn>nancy service because of its deadly and morbidity rate observing into new born. The purpose of this Study: The purpose of this study is to study the epidemiology, clinic and prediction of preterm delivery in the Maternity at the community university hospital Center. Methodology: Over a 12 month period, we conducted a descriptive and analytical cross-sectional study of preterm delivery cases in the obstetrics and gynecology clinic of the community university hospital Center. The data was collected from the survey records and then analyzed by Epi Info version 3.5.4. Results: The preterm delivery rate related to delivery in the pregnancy pathology department was 17.5%. A high proportion was noticed on patients aged from 20 - 24 years old (28.2%), single (95.8%) and pauciparous (39.5%) were observed. Pelvic pain is the main cause of consultation (100%). 83.1% of the cases were cured by Nifedipine. The higher neonatal mortality is in the pregnancy period less than 30 weeks, with statistically significant difference. Conclusion: Preterm birth is a common disease in the Department. It’s more about young unmarried womenn style="font-family:Verdana;">. neonatal m

关键词： Preterm Birth Epidemiology Prediction Bangui