Results 21 to 30 of about 61,654 (145)
煤储层中水的成因、年龄及演化: 卤素离子、稳定同位素和 129 I的证据
, 2013 石炭-二叠系煤层是鄂尔多斯盆地韩城煤层气田的主力产层, 煤层中水的特征对于煤层气富集的研究有着重要的意义. 本文通过采集研究区煤层气井的水样, 利用加速器质谱仪(AMS)测得地层水中的放射性同位素 129 I信息, 结合卤素离子浓度和稳定氢氧同位素特征, 对石炭-二叠系煤层中水的来源、年龄和演化过程进行了探讨.
Xingzhi Ma +4 more
semanticscholar +1 more source
Asian Politics &Policy, Volume 18, Issue 4, October 2026.ABSTRACT Indonesia's responses to Illegal, Unreported, and Unregulated Fishing (IUUF) shifted from assertive measures such as publicly bombing and sinking illegal ships to legal, educational, and cooperative measures. The changes in policies undertaken are puzzling, given that Indonesian policymakers' perception of IUUF has remained the same between ...
Bama Andika Putra, Abdul Razaq Cangara
wiley +1 more source
Challenges in Advancing LGBTQ+ Equity and Research in Southeast Asian Countries: A Brief Report
Sexuality, Gender &Policy, Volume 9, Issue 3, August 2026.ABSTRACT This brief report provides preliminary findings on the challenges faced by academics, community workers, and other individuals involved in LGBTQ+ rights activism and research in Southeast Asia (SEA), with larger shares of participants from the Philippines, Malaysia, Thailand, and Vietnam.
Viet D. M. Trinh +2 more
wiley +1 more source
野生动物学报, 2007 年龄结构是研究种群动态的重要基础。本文介绍了有别于传统形态学方法鉴定动物年龄的3类估计年龄的分子生物学方法;1)氨基酸构型比与年龄正相关分析法;2)端粒平均长度与年龄负相关分析法;3)DNA损伤或与蛋白质交联程度与年龄相关分析法。详细阐述了这些方法在实际工作中的适用对象、应用条件、方法和原理。并对野生动物年龄推断的研究方法进行了展望。
马云龙, 徐艳春, 王文
doaj
Ultrasound in Obstetrics &Gynecology, Volume 68, Issue 2, Page 211-219, August 2026.ABSTRACT Objectives First, to evaluate whether the ratio of soluble fms‐like tyrosine kinase‐1 to placental growth factor (sFlt‐1/PlGF) is associated with hemodynamic changes in ophthalmic artery (OA) Doppler in near‐term pregnancy. Second, to assess the performance of OA Doppler to rule in and rule out angiogenic factor imbalance.
M. F. Tinajero +7 more
wiley +1 more source
Hypertension at 5 months postpartum in women with gestational diabetes
Ultrasound in Obstetrics &Gynecology, Volume 68, Issue 2, Page 202-210, August 2026.ABSTRACT Objective Gestational diabetes mellitus (GDM) is associated with future maternal cardiovascular disease, independent of the development of Type‐2 diabetes mellitus. As a major cardiovascular risk factor, we examined the incidence and predictors of hypertension at 5 months postpartum in women with previous GDM.
C. Gómez Fernández +7 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2020 目的探讨老年2型糖尿病患者N末端B型利钠肽原(NT-proBNP)的浓度变化及其影响因素。方法选择2018年1月至2019年1月武汉亚洲心脏病医院住院部新诊断老年2型糖尿病患者109例,所有入选患者在确诊后均给予降糖治疗 ...
崔晓雪, 周榕, 成忠, 顾晔
doaj
Zhongguo shiyan zhenduanxue, 2021 不孕症在育龄期女性中发病率为10%-15%[1],不孕症的病因较多,不管是输卵管因素、卵巢因素或者子宫因素等,机体内可能存在慢性炎症,因此,回顾性分析了不孕症患者白细胞计数、凝血功能、纤维蛋白原及D-二聚体的结果,并与女性体检组作为对照组进行比较分析。1资料与方法1.1一般资料2018年1月1日至2019年8月31日,来湖北省妇幼保健院生殖中心就诊,年龄22-44岁的女性患者,诊断为女性原发性不孕症253例,平均年龄(29.5±3.7)岁;女性继发性不孕症205例,平均年龄(31.1±4.4)岁 ...
胡兴文, 熊潜涛, 洪媛
doaj
Conservation Biology, Volume 40, Issue 4, August 2026.Abstract The design of experiments to investigate the combined effects of multiple stressors requires exposing target organisms to multiple combinations of stressor doses. Concurrent manipulation of stressors is often infeasible with wildlife, but long‐lasting health effects allow individual health to be used as an integrator of prior stressor exposure.
Enrico Pirotta +24 more
wiley +1 more source
野生动物学报, 1991 对随机抽取的388号黄羊（Procapra gutturosa）某些指标（牙齿生长替换及磨损度、I牙冠比、体重、前臂长、后足长、尾长、眶间宽、身长、头长）与性别、年龄相关性的分析表明:前面项指标无显著性性别差异,且与年龄显著相关,可以单独作为年龄鉴定指标;后七项指标具显著性性别差异,与年龄关系不密切,只能用于区分成幼或3.5岁以前的年龄鉴别。另外发现高龄个体的牙齿磨损速度有降低的趋势,性成熟年龄雌性有超前雄性一年的趋势。
姜兆文, 徐利, 郑红
doaj