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121.
葛国彬 《天津市工会管理干部学院学报》2010,18(1):13-14
工会组织的职能问题是一个大问题,在国有大型企业的基层工会工作中,它决定着工会工作的格局、机制和内容。尤其在当前社会转型、经济发展的关键时期,更要准确把握工会职能的内涵和外延,以适应新形势的要求,开创工会工作新局面。 相似文献
122.
Evaluation of a Freezer Mill for Bone Pulverization prior to DNA Extraction: An Improved Workflow for STR Analysis
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Emely Morales Colón M.S. Mireya Hernández M.S. Mariel Candelario M.S. María Meléndez B.S. Tracey Dawson Cruz Ph.D. 《Journal of forensic sciences》2018,63(2):530-535
Traditional methods for bone pulverization typically generate heat, risking stability of DNA sample. SPEX? has developed cryogenic grinders which introduce liquid nitrogen to cool the sample and aid in the grinding process. In this study, the Freezer Mill 6970 EFM was used with two DNA extraction methods and routine downstream STR analysis procedures. DNA from as little as 0.1 g of bone powder was used to develop full STR profiles after freezer mill pulverization, and the method was reproducible. Further, no contamination was detected upon cleaning/reuse of the sample vials. There were no significant differences in DNA yield, STR alleles detected, or peak heights using the freezer mill as compared to traditional grinding, and successful DNA profiles were achieved from as low as 0.1 g of bone powder with this method. Overall, this work indicates that this cryogenic mill method may be used as a viable alternative to traditional tissue grinders. 相似文献
123.
Scanning Electron Microscopy–Energy‐Dispersive X‐Ray (SEM/EDX): A Rapid Diagnostic Tool to Aid the Identification of Burnt Bone and Contested Cremains
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Sarah T. D. Ellingham Ph.D. Tim J. U. Thompson Ph.D. Meez Islam Ph.D. 《Journal of forensic sciences》2018,63(2):504-510
This study investigates the use of Scanning electron microscopy–energy‐dispersive X‐ray (SEM‐EDX) as a diagnostic tool for the determination of the osseous origin of samples subjected to different temperatures. Sheep (Ovis aries) ribs of two experimental groups (fleshed and defleshed) were burned at temperatures of between 100°C and 1100°C in 100°C increments and subsequently analyzed with the SEM‐EDX to determine the atomic percentage of present elements. Three‐factor ANOVA analysis showed that neither the exposure temperature, nor whether the burning occurred with or without soft tissue present had any significant influence on the bone's overall elemental makeup (p > 0.05). The Ca/P ratio remained in the osseous typical range of between 1.6 and 2.58 in all analyzed samples. This demonstrates that even faced with high temperatures, the overall gross elemental content and atomic percentage of elements in bone remain stable, creating a unique “fingerprint” for osseous material, even after exposure to extreme conditions. 相似文献
124.
目的评估人外周血中FoxO3a mRNA表达的随龄变化规律,为法医学个体年龄推断寻找新的分子指标。方法采集80个健康无关个体血样,按年龄分为8组:≤9岁、10~19岁、20~29岁、30~39岁、40~49岁、50~59岁、60~69岁、≥70岁组,每组10人。提取总RNA后,用实时定量RT-PCR技术检测FoxO3a mRNA的表达水平。结果人外周血FoxO3a mRNA表达随年龄的增长而逐渐增加,具有良好的相关性(r=0.841,P0.01),以年龄分组为自变量,FoxO3a mRNA表达水平为因变量,可得拟合曲线Y=0.001e0.418x。结论人外周血中FoxO3a mRNA表达具有较强的年龄特征,有望成为年龄推断的有用指标之一。 相似文献
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James Michael Lampinen William Blake Erickson Charlie Frowd Gregory Mahoney 《心理学、犯罪与法律》2013,19(10):952-967
When children go missing, authorities sometimes release age progressed images that are intended to approximate the person's current appearance. The current studies measured the influence of the range between the time when the child went missing and the age portrayed in the age progression on the similarity between the progressions and current images of the targets. Experiment 1 examined whole face images and Experiment 2 examined internal features only. Eight artists were recruited to produce progressions at three age ranges. Also included were averaged (morphed) images made of progressions of the same individual at a given range by different artists. Progressions across shorter ranges produced images more similar than those across longer ranges, and target comparisons yielded higher similarity ratings than foil comparisons. Although there was much variability among artists, the morphed images performed better than the average rating given to all age progressions. 相似文献
128.
Kuen-tae Kim 《The History of the Family》2013,18(1):69-87
While the urban area was increasingly filled with middle- and low-status residents, the rural area was dominated by high-status settlers whose number increased because of migration from the city and natural growth. Remarkable differences existed between urban and rural marriage features such as marriage age and rate of remarriage. The more sincere adoption of the high-status marriage culture in the rural area may be attributed to its occupational homogeneity. In the rural agrarian settings, landlords, self-cultivators and tenants shared a similar living pattern and value system based on the agricultural cycle. The urban area, however, exhibited a variety of work patterns of local functionaries, artisans and merchants. Many middle- and low-status people might well have found the high-status culture of the rural area incompatible with their own. 相似文献
129.
The methodological choices made in a survey may partly shape the picture a survey conveys of partnership violence. This article considers some of the choices made in the Finnish survey on violence against women, such as the way the violence was defined and how the definition tried to take into account the special characteristics of this kind of violence, in order to help the respondents to identify and recall different events of it. The empirical analyses showed that the used definition of violence had not reached all the respondents representing different population groups. The experiences of partner violence among older, less educated women, and the experiences of those who felt embarrassed or ashamed to speak about issues concerning their partner or partnership, were more probably under-represented in the survey. 相似文献
130.
日益增长的老年人健康需求是老龄化带来的诸多挑战中的一个重要方面。新一轮医药卫生体制改革突出强调基本医疗服务供给和基层卫生服务体系建设,在缓解老年人健康压力方面有一定的积极作用。老年人在身体条件、经济能力、思想观念等方面的特点,使得其就医行为受到机构服务能力、距离、费用、就医过程等多方面因素影响。在新医改背景下,需要结合这些影响因素继续完善基层医疗服务体系,以更好地满足老年群体健康需求。 相似文献