Results 21 to 30 of about 729,736 (164)
国家劳动部阶段性成果鉴定职业介绍和技能鉴定的科学工具——《个人职业素质评价系统》简介
, 1994 随着我国社会主义市场经济的深入发展,劳动力市场对职业介绍和技能鉴定的科学化提出了越来越高的要求。在此情况下,劳动部职业技术教育中心研究所与中国科学院心理研究所的科研人员配合,已研制完成《个人职业素质评价系统》,该成果已通过国家劳动部阶段成果鉴定(参见“人民日报”1993年5月20日,第3版 ...
时勘
core +1 more source
Integrative Conservation, Volume 5, Issue 2, Page 192-204, June 2026.We developed an effective ex‐situ conservation approach for an endangered orchid species, Dendrobium sinominutiflorum. A compatible fungal strain Tulasnella sp. was obtained by using in‐situ seed baiting technique. The Symbiotic germination with Tulasnella sp. significantly promotes seed germination and seedling growth.
Han‐Xiao Huang +6 more
wiley +1 more source
First Documentation of Two Rare Fern Species in Xishuangbanna National Nature Reserve, Yunnan, China
Integrative Conservation, Volume 5, Issue 2, Page 173-176, June 2026.We report two rare ferns in Menglun Sub‐reserve in Xishuangbanna National Nature Reserve, Yunnan Province, China. These represent the first documented distribution of the previous Laotian endemic fern species in Yunnan and China as well. Our observations confirmed the shared plant diversity in China‐Laos border and also represent the need for more ...
Hongmei Liu +3 more
wiley +1 more source
Gaoya dianqi, 1978 根据电力工业发展的需要,380千伏高压少油断路器样品试制,通过了工厂鉴定,并于同年11月经一机部380千伏输变电设备鉴定会议审查鉴定,鉴定意见为:“SW6—380型高压少油断路器配Cy3一Ⅲ型液压机构进行了全部型式试验项目,符合有关断路器的国家标准,部颁标准,380千伏输变电设备一机部暂定绝缘水平和产品技术条件要求,技术文件齐全。经鉴定委员会审查通过,同意转入生产”。
范崇志
doaj
Too Difficult to Report? User Experiences With DSA and Community Guideline Reporting on Social Media
Policy &Internet, Volume 18, Issue 2, June 2026.ABSTRACT User reporting of norm‐violating content on social media is a crucial component of platform governance. While prior research has explored the motivations behind reporting—often drawing on the Bystander Intervention Model—less attention has been paid to how users navigate the processes involved.
Ursula K. Schmid +2 more
wiley +1 more source
Emerging MBenes for Energy Technologies
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT The escalating global demand for sustainable energy is driving the search for transformative materials that transcend the limitations of conventional systems. Two‐dimensional (2D) transition metal borides (MBenes) have recently emerged as a compelling class, distinguished by unique electronic structures, tunable surface chemistry, and ...
Yingrui Ding +5 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2013 目的通过DNA微阵列芯片法进行分枝杆菌菌种鉴定与常规生化法进行比较,分析其特点,提高分枝杆菌菌种鉴定水平,更好的为临床服务。方法选择我院2010年1月至2013年3月从临床标本中分离培养后所得的结核分枝杆菌复合群12株（其中含1株牛型结核分枝杆菌）,非结核分枝杆菌31株,分别用DNA微阵列芯片法和常规生化法进行鉴定。结果 DNA微阵列芯片法进行分枝杆菌菌型鉴定与普通生化培养法鉴定结果符合率为100%,对常规生化法未定型的两株非结核分枝杆菌也分别定型为1株土分枝杆菌,1株耻垢分枝杆菌。结论 ...
刘亚芹, 杨振斌, 冯冬霞
doaj
野生动物学报, 2020 利用粪便DNA技术对候鸟进行物种鉴定，对了解鸟类在繁殖地和越冬地的种类分布、研究其迁徙路线等具有重要意义。本研究扩增、测定了76份雁形目鸟类粪便的D-loop区序列，将其与NCBI数据库中已知鸟类同源序列进行比对分析（BLAST比对法）。结果表明：相似度为98.07% —100%，其中75%的单倍型可以被认定为单一物种，25%的单倍型检测为非单一物种，即包含2个近缘物种。比较基于Ts、Ts +Tv碱基替换计算的K2P遗传距离，说明后者更适合于D-loop区序列特征。而且，以此为基础的遗传距离法 ...
秦啼 1 +5 more
doaj
Ultrasound in Obstetrics &Gynecology, Volume 67, Issue 6, Page 806-814, June 2026.ABSTRACT Objective To investigate the incidence of pre‐eclampsia (PE) and the predictive performance of the Fetal Medicine Foundation (FMF) first‐trimester PE screening algorithm across pregnancies conceived using assisted reproductive technology (ART), after ovulation induction (OI) and through spontaneous conception (SC).
A. S. L. Kjaer +23 more
wiley +1 more source
, 2005 以野外收集的水华蓝藻为原料,建立了以75%甲醇溶液提取、快速色谱和半制备色谱分离为主要步骤的微囊藻毒素分离纯化方法,并用HPLC、分光光度计和电喷雾质谱对所得毒素的纯度和结构进行了鉴定.结果表明,所得毒素为MCRR,纯度大于95%,其紫外吸收光谱在239nm处有特征吸收,分子组成为环(Ala-Arg-MeAsp-Arg-Adda-Glu-Mdha ...
陈晓国,肖邦定,徐小清
core