Results 51 to 60 of about 9,266 (153)
Zhongshan Daxue xuebao. Yixue kexue ban, 2000 【目的】评价Brå nemark 种植义齿修复全牙列缺失2 年后的临床效果。【方法】采用Brå nemark 种植系统的常规 操作方法, 在Ⅰ 期手术时, 354 颗Brå nemark 种植体被植入全牙列缺失的66 例患者;4 ～ 6 个月后, 进行Ⅱ 期手术;再经1 周后, 用固定可卸式修复体修复。【结果】Brå nemark 种植体修复后2 年, 累积成功率上颌为91.1%, 下颌为97.4 %, 修复体的稳定 率为100%。【结论】Brå nemark ...
邓飞龙 +3 more
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, 2004 【目的】探讨体外受精-胚胎移植(IVF-ET)术后妊娠早产的相关因素。【方法】回顾性分析我院1992年1月至2001年12月的221例IVF-ET术后妊娠妇女的临床资料,根据分娩孕周分为早产组和足月分娩组,用Logisticregression分析与早产有关的因素。【结果】优势比(OR)大于1的相关因素有:宫内感染(OR=42.334)、双胎妊娠(OR=20.536)、妊娠期糖耐量异常(OR=3.823)、胎膜早破(OR=2.284)、中重度妊高征(OR=1.664)、盆腔粘连(OR=1.367 ...
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Ultrasound in Obstetrics &Gynecology, Volume 66, Issue 4, Page 422-432, October 2025.ABSTRACT Objective To compare reproductive outcome between luteal‐phase support (LPS) protocols for frozen embryo transfer (FET) cycles with hormone replacement therapy (HRT). Methods A search was conducted in MEDLINE, Scopus, LILACS, EMBASE, Scielo.br, PROSPERO, CINAHL, PsycINFO, AMED, ClinicalTrials.gov, ICTRP, the Cochrane Library and conference ...
A. Etrusco +11 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2019 目的探讨富血小板纤维蛋白(PRF)对即刻负重种植体周围骨缺损的影响。方法选取比格犬5只,将每只犬左右两侧下颌第四前磨牙牙位随机分为观察组和对照组,拔除后立即植入柱状螺纹纯钛种植体并即刻负重,观察组采用PRF填充,对照组不填任何填充物。采用X线测量颊侧骨量增加高度、缺损面积、骨性结合率和新骨生成率;采用能谱分析两组种植体-新骨界面Ca2+含量,HE染色观察骨组织形态。结果观察组种植术后3个月种植体部位骨表面Ca2+含量为(43.20±7.14)%,明显高于对照组 ...
余海云, 张国荣, 郭静
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Functional Ecology, Volume 39, Issue 10, Page 2889-2904, October 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract In the Southwest Australian Biodiversity Hotspot, the greatest plant species diversity tends to occur on the most phosphorus (P)‐impoverished soils. Many plant species in this P‐impoverished environment release root carboxylates that mobilise soil P which is a more ...
Xue Meng Zhou +5 more
wiley +1 more source
Functional Ecology, Volume 39, Issue 10, Page 2704-2716, October 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract Moso bamboo (Phyllostachys edulis) invasions into broadleaf forests can cause serious ecological problems, such as reducing biodiversity and disrupting community succession.
Ting Zhou +5 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2018 牙周炎在世界范围内发病率高达90%,已成为了成年人牙缺失的最主要原因。目前,种植修复是牙缺失患者极为重要的修复方法之一。牙周炎虽然不是口腔种植修复的绝对禁忌症,但种植失败风险较高,尤其即刻种植。因此,如何提高牙周炎患者拔牙后即刻种植的成功率是目前研究的热点。神经生长因子（NGF）具有促进骨折愈合的能力[1,2]。NGF能促进血管生成 ...
张艳, 王伟, 刘新, 袁琳, 刘聪
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HCG 日不同优势卵泡比例对 IVF/ICSI 妊娠结局的影响 [PDF]
, 2019 【目的】为摸索适合不同方案最佳人绒毛膜促性腺激素注射日（HCG日）优势卵泡比例，探讨HCG日直径18mm以上卵泡不同比例在不同方案中对体外受精/单精子卵泡浆内显微注射-胚胎移植（IVF/ICSI-ET）结局的影响，为个体化确定HCG日提供依据。【方法】本研究回顾性分析2014年至2016年长方案IVF/ICSI共3064周期，拮抗剂方案IVF/ICSI共918周期临床资料。按照HCG日优势卵泡（直径≥18mm）的不同比例将患者在不同方案中均分成3组：低比例组：优势卵泡比例40 ...
张清学, 李予, 李轶, 林海燕
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Assessing the Corn Belt as an anthropogenic barrier to migrating landbirds in the United States
Conservation Biology, Volume 39, Issue 5, October 2025.Abstract Migrating landbirds adjust their flight and stopover behaviors to efficiently cross inhospitable geographies, such as the Gulf of Mexico and the Sahara Desert. In addition to these natural barriers, birds may increasingly encounter anthropogenic barriers created by large‐scale changes in land use. One such barrier could be the Corn Belt in the
Fengyi Guo +7 more
wiley +1 more source
Shuitu Baochi Xuebao, 2011 通过建立径流小区对黄土高原水蚀风蚀交错区3种典型植被措施下水量平衡进行定位观测研究,分析3种植被措施对土壤水分的季节变化与水分利用效率的影响。结果表明,整个生长季节内3种植被措施下土壤表层5cm温度显著低于空气温度;土壤表层0-6cm水分季节性波动受到降雨的强烈影响。3种植被措施对剖面土壤水分季节变化产生显著影响,5-7月份为土壤水分消耗期,8-10月份为土壤水分补偿期。土壤垂直剖面含水量从表层到深层表现为先增加后减小再增加的趋势。3种植被措施对相同地形部位土壤水分所造成的差异不同 ...
王建国, 樊军, 郭德亮, 王力
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