Results 11 to 20 of about 14,963 (106)

Effect of quality control circle activity on standard prevention of venous thromboembolism among hospitalized pregnant women (品管圈活动提高住院孕产妇静脉血栓栓塞规范预防率的效果分析)

open access: yes中西医结合护理, 2023
Objective To investigate the effect of quality control circle (QCC)activity on standard prevention of venous thromboembolism (VTE)among hospitalized pregnant women.
YU Wenjie (于文杰)   +3 more
doaj   +1 more source

探讨不同宫腔粘连分类标准对其术后生殖结局的预测价值

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2021
目的探讨宫腔粘连(IUA)不同分类标准在预测其术后生殖结局方面的意义。方法搜集2017年1月至2018年2月在重庆市妇幼保健院诊断IUA并且进行宫腔镜手术的患者,最后纳入178名作为研究对象。所有入选患者均行宫腔粘连分离术,分别采用美国AFS评分、欧洲ESGE评级、Nasr评分以及国内评分系统进行完整评分,分析比较不同评分系统对IUA患者术后妊娠率和活产率的预测价值。结果① 术前不同月经类型、术后不同月经恢复情况及输卵管开口是否可见的妊娠率及活产率组间差异无统计学意义(P>0.05 ...
陈丽, 杨霞, 郝丽娟
doaj  

单纯口服地屈孕酮在自然周期冻融胚胎移植中的临床疗效

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2023
目的探讨单纯口服地屈孕酮在自然周期冻融胚胎移植(NC-FET)中黄体支持的临床疗效。方法回顾性分析2019年1月至2021年9月在中山大学孙逸仙纪念医院生殖中心行NC-FET周期的临床资料,共1 530个治疗周期。根据不同黄体支持方案分为三组:A组单纯口服地屈孕酮片(n=524),B组阴道用黄体酮软胶囊(n=401),C组A+B联合用药(n=605),比较三种黄体支持患者的临床结局和成本-效果比。主要观察指标是活产率。结果活产率A组43.13%(226/524)、B组39.15%(157/401 ...
冯书梅, 潘萍, 黄佳, 李予
doaj  

氮肥基追比例对滴灌春小麦氮代谢及氮肥利用率的影响

open access: yesShuitu Baochi Xuebao, 2022
探讨减氮模式下氮肥不同基追比例对滴灌春小麦氮代谢关键酶活性、氮素积累转运、产量及氮肥利用率的影响, 为新疆麦区滴灌春小麦高效生产提供科学依据。以中筋型"新春6号"(XC 6)和强筋型"新春37号"(XC 37)小麦品种为材料, 设置0∶0, 2∶8, 3∶7, 4∶6, 5∶5共5种氮肥基追比处理, 研究氮肥基追比例对滴灌春小麦氮代谢及氮肥利用率的影响。结果表明: 同一品种下, 随氮肥基追比例的增加, 氮代谢酶活性、氮素积累、氮肥利用率(NUE)、籽粒产量及蛋白质产量均呈现先升高后降低的趋势 ...
王海琪   +4 more
doaj  

脉冲曝气方式下活性污泥降解特征分析

open access: yesGongye shui chuli, 2018
研究了脉冲曝气方式对活性污泥降解模拟生活污水的影响。结果表明:脉冲曝气时,总有机碳去除率与连续曝气下的去除率相当,均在85%左右,氨氮去除率比连续曝气时的去除率低4%~5%,总氮去除率比连续曝气时的高3%~4%,溶解性微生物产物的产出浓度比连续曝气下的低2 mg/L左右。
马陈熀, 程盼盼, 高欢, 张勇
doaj   +2 more sources

When and why to give shorebirds a head start

open access: yesConservation Biology, EarlyView.
Abstract Headstarting is a translocation technique involving the hatching or rearing of wild eggs or young in captivity and the release of those individuals back to the wild at or before independence. It has been trialed as a conservation intervention for shorebirds over recent decades to improve the population trend of target populations by increasing
Lynda Donaldson   +4 more
wiley   +1 more source

Advancing conservation breeding programs for marine invertebrates

open access: yesConservation Biology, EarlyView.
Abstract In the face of ecosystem change and biodiversity loss caused by climate change and other stressors, conservation breeding, or captive breeding, with the aim of reintroduction for wild population recovery, is an emerging tool for preventing species’ extinction and rehabilitating ecosystems.
Elora H. López‐Nandam   +3 more
wiley   +1 more source

Defect‐Modulate Nanoalloy Catalysts Enable Efficient Catalytic Conversion in Lithium–Sulfur Batteries

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT To address critical issues in lithium–sulfur batteries, such as slow polysulfide conversion kinetics and shuttle effects, we designed and synthesized a high‐performance nanoalloy catalyst through a defect reconstruction strategy, aiming to enhance the electrochemical performance of batteries.
Zhijun Zhao   +10 more
wiley   +1 more source

Insights Into the Temperature‐Dependent Oxidation Mechanism of Metallic Cerium in H2O‐N2 Atmospheres

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Metallic cerium (Ce), a widely used surrogate for actinide metals, enables mechanistic studies of reactions in complex gas environments under controlled and safer laboratory conditions. Here, the oxidation behavior of Ce in H2O‐N2 mixed atmospheres was investigated from 200°C to 350°C using in situ thermogravimetry–mass spectrometry, in situ X‐
Kun Huang   +10 more
wiley   +1 more source

Efficient Photocatalytic Removal of Toluene by Synergistic FeCe/TiO2: Performance and Mechanism

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Efficient removal of volatile organic compounds (VOCs) in confined spaces is crucial for environments such as spacecraft and deep‐sea submarines. Metal modification is an effective strategy to enhance the light absorption capacity of titanium dioxide (TiO2) and suppress the recombination of photogenerated charge carriers.
Ke Xu   +10 more
wiley   +1 more source

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