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世界核心医学期刊文摘（妇产科学分册） 2005年第2期1卷 23-24页

作者： ehrenberg H.M. Mercer B.M. Catala no P.M. 石磊

this study was undertaken to determi ne the relative con-tribution of abnormal pregravid maternal body habitus and diabetes on the prevalence of large -for -gestational -age *** and neonatal reco rds for singleton term(≥37weeks’estimated gestational age)deliveries January1997through June 2001were *** were characterized by pregravid body mass index(BMI ),divided into underweight (BMI t (BMI 25.1-30kg /m 2 ),and obese(BMI >30kg /m 2 )*** was classified as gestational,treated with diet alone(A1GDM),or with insulin(A2GDM),and pregestaional diabetes(PDM).Newborn weight greater than the 90t h percentile for gestational age,based on published local birth weight data,defined large for gestational age(LGA).the risk of LGA delivery for underweight,overweight,and obese women were compared with that o f women with nor-mal pregravid *** regression models,including parity,newborn sex,BMI,race,and d iabetes,were constructed to examine the relative effect of abnormal BMI and diabetes on the risk of the delivery of an LGA *** data for 12,950deliveries were included(1,64013.0%underweight,2,99123.7%overweight,and2,92823.2%obese).LGA delivery affected 11.8%of the study sample;303(2.3%)of subjects had A1GDM,whereas 94(0.7%)had A2GDM,and 133(1.6%)had *** with normal BMI subjec ts,obese womenwere at elevated risk for LGA delivery(16.8%vs 10.5%;Pt women(12.3%vs 10.5%;P =.01).Diabetes was also a risk factor for LGA deliv-ery(A1GDM:29.4%vs 11.4%A2GDM:29.8%vs 11.7%;PDM:38.3%vs 11.6%;P ther risk factors for LGA delivery included parity(13.2%vs 9.5%;P ted with a low er risk of LGA de-livery(9.0%vs 13.7%;P the independent influence of pregravid obesity and PDM,increasi

关键词：巨大儿发生率大于胎龄儿单胎妊娠孕前肥胖孕前体重指数异常体分位点相对频数多重回归妇女分娩

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维普期刊数据库

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母体肥胖和体重增加对剖宫产术后阴道分娩成功率的影响

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世界核心医学期刊文摘（妇产科学分册） 2005年第2期1卷 22-23页

作者： Durnwald C.P. ehrenberg H.M. Mercer B.M. 石磊

this study was undertaken to determi ne the impact of ma-ternal obesity on success of a trial of labor(vaginal birth after cesarean sectionVBAC)after a single low transverse ce-sarean *** charts of women with low transverse cesarean delivery in their first viable pregnancy who underwent a VBAC in their second v iable pregnancy at our urban tertiary care institution were *** body mass index(BMI )was classified as underweight (t (25-29.9kg /m 2 ),or obese(≥30kg /m 2 ).Clinical characteristics and labor outcomes were *** potentially affecting VBAC success were analyzed by univariate *** re gressions were performed to determine the impact of maternal p regravid BMI on VBAC success after controlling for c onfounding *** 510women attempting a trial of labor,337(66%)were successful and 173(34%)failed *** VBAC success was seen in obese(54.6%)but not over-weight (65.5%)women compared with women of normal BMI (70.5%),P =.003and.36,***-derweight women had more VBAC success than women of normalBMI (84.7%vs 70.5%,P =.04).Controlling for other factors,the association b etween increasing pre-gravid BMI and BMI ≥30kg /m 2 with decreased VBAC success persisted,P =.03and.006,r ***-mal BMI women who became overweight before the second pregnancy had decreased VBAC success compared with those whose BMI remained normal(56.6%vs 74.2%,P =.006).However,overweight women who decreased their BMI to normal before the second pregnancy did not significantly improve VBAC success(64.0%vs 58.4%,P =.67).Increasing pregravid BMI and weigh t gain be-tween pregnancies reduce VBAC succe ss after a single low transverse cesarean delivery.

关键词：剖宫产术阴道分娩横切口剖宫分娩结局三级医疗机构单变量分析混杂因素无显著性差异

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维普期刊数据库

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FORMAtION AND GERMINAtION OF REStING SPORES OF Chaetoceros didymus ehrenberg (BACILLARIOPHYtA)

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Acta Oceanologica Sinica 1987年第1期 124-131页

作者：林均民,t.G.CHIN金德祥 Department of Biology Xiamen University Xiamen Department of Biology Xiamen University Xiamen

Resting spores are important in ecology and taxonomy of diatoms as well known to every dia-tomist. If NO3-N and NO2-N in the cultures drop down to 4 μg I-1, or at a relatively small amount of N, higher in number of individuals and sudden increasing of salinity, the resting spores will produce after 24 h. Paired spores are present in the newborn spore-mother cells. At 20℃ and 6000 lx in a fresh medium, spores will be germinated into vegetative cells within 48 h.

关键词： FORMAtION AND GERMINAtION OF REStING SPORES OF Chaetoceros didymus ehrenberg BACILLARIOPHYtA

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温度及光照对浮游硅藻Nitzschia Closterium（ehrenberg）***吸收P32的影响

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水产学报 1965年第1期 53-58页

作者：朱树屏刘恬敬陈立人周其芳李复馨水产部海洋水产研究所

据本所黄河口海区浮游植物的调查,海水中营养元素含量的变化,对控制浮游植物的数量有肯定作用,水温及光照对这种控制作用,又有重要的影响;并且这种影响因浮游植物的种类而有显著的差异（朱树屏、康元德,1962）。气候因子对各种浮游植物... 详细信息

据本所黄河口海区浮游植物的调查,海水中营养元素含量的变化,对控制浮游植物的数量有肯定作用,水温及光照对这种控制作用,又有重要的影响;并且这种影响因浮游植物的种类而有显著的差异（朱树屏、康元德,1962）。气候因子对各种浮游植物吸收营养元素的影响,尚缺确切资料,本文只简报温度及光照对P32被吸收的影响。

关键词：光照硅藻 Nitzschia Closterium ehrenberg)W.Smith

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