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81.
??????? 目的 了解县级公立医院改革试点医院人力资源配置现状,为合理配置县级公立医院人力资源提供依据。方法 采用现场问卷调查的方法对湖北省12家县级公立医院的960名医护人员进行调查,并对结果进行描述性统计和Spearman秩相关分析 。结果 (1)县级公立医院人力资源数量低于全国平均水平; (2)县级公立医院规模扩张,但是人力资源补给不足;(3)医务人员素质偏低。结论 宏观调控县级公立医院人力资源、促进县级医院的人才引进和培养、增强人力资源质量建设,以提高县级公立医院医疗服务水平。  相似文献   
82.
芦丁的资源、药理及主要剂型研究进展   总被引:3,自引:0,他引:3  
芦丁广泛存在于多种天然植物如槐米、苦荞麦、尤曼桉中,在医药、日化、食品等领域有广泛的应用,近年来已成为研究热点.芦丁具有多种生理功能,对人体各个器官均有保护作用,如清除自由基、促进成骨细胞的生长、降低血糖、抑制结肠癌和前列腺癌等.本文对芦丁的资源来源、药理作用和剂型进行了简述.  相似文献   
83.
This article reviews recent advances in the domain of psychiatry and religion that highlight the double‐edged capacity of religion to enhance or damage health and well‐being, particularly among psychiatric patients. A large body of research challenges stereotyped views of religion as merely a defense or passive way of coping, and indicates that many people look to religion as a vital resource which serves a variety of adaptive functions, such as self‐regulation, attachment, emotional comfort, meaning, and spirituality. There is, however, a darker side to religious life. Researchers and theorists have identified and begun to study problematic aspects of religiousness, including religiously‐based violence and religious struggles within oneself, with others, and with the divine. Religious problems can be understood as a by‐product of psychiatric illness (secondary), a source of psychiatric illness (primary), or both (complex). This growing body of knowledge underscores the need to attend more fully to the potentially constructive and destructive roles of religion in psychiatric diagnosis, assessment, and treatment. In fact, initial evaluative studies of the impact of spiritually integrated treatments among a range of psychiatric populations have shown promising results. The article concludes with a set of recommendations to advance future research and practice, including the need for additional psychiatric studies of people from diverse cultures and religious traditions.  相似文献   
84.
运用《豇豆基因型耐盐能力技术鉴定方法》(专利号ZL200810048423.5),对60份豇豆品种的耐盐能力进行了鉴定评判。试验材料经苗期培养和盐胁迫处理后,分别测定处理组和对照组的植株叶片叶绿素含量、过氧化氢酶活性、可溶性蛋白质含量、细胞伤害率以及单株鲜重等指标并计算其SRI值,运用专利技术的预测模型,得出各品种耐盐综合评价值(D值)。依据评判标准,紫魁、玉农农家宝特优、抗病芦花等11个品种的综合评价值D≥0.68,归为盐耐受型品种;之豇14、白皮、矮紫尾青等8个品种的综合评价值D≤0.48,归为盐敏感型品种;其余41个品种的D值介于0.48~0.68之间,属于中度耐盐品种。本研究结果扩大了豇豆种质耐盐能力鉴定评判份数,丰富了耐盐种质鉴定信息。  相似文献   
85.
平榛种质资源坚果农艺性状鉴定与评价研究   总被引:1,自引:0,他引:1  
平榛是我国重要的榛属植物资源,为鉴定、评价和保护平榛种质资源,提高其利用效率,采用主成分分析和聚类分析方法对99份平榛种质资源坚果的主要农艺性状进行了鉴定和综合评价。结果表明:平榛种质资源坚果的24个性状具有丰富的遗传多样性;10个数量性状的主成分分析确定了4类影响因子,反映了育种选择方向及潜力;基于各种质间形态性状的遗传差异,将99份平榛种质划分为5大类群,第Ⅰ类群可作为选育果面光滑品种的育种和候选亲本材料,第Ⅱ类群可作为选育大粒型、适宜机械化加工的育种和候选亲本材料,第Ⅲ类群具有作为市场产品的潜力,第Ⅳ类群可作为选育圆形、果面无条纹的育种和候选亲本材料,第Ⅴ类群可作为选育高丰产性品种的育种和候选亲本材料。上述研究为平榛种质资源的评价、保护和选优工作提供了基础数据。  相似文献   
86.
Variations in male body size are known to affect inter‐ and intrasexual selection outcomes in a wide range of animals. In mating systems involving sexual signaling before mating, body size often acts as a key factor affecting signal strength and mate choice. We evaluated the effect of male size on courtship displays and mating success of the olive fruit fly, Bactrocera oleae (Diptera: Tephritidae). Wing vibrations performed during successful and unsuccessful courtships by large and small males were recorded by high‐speed videos and analyzed through frame‐by‐frame analysis. Mating success of large and small males was investigated. The effect of male–male competition on mating success was evaluated. Male body size affected both male courtship signals and mating outcomes. Successful males showed wing‐borne signals with high frequencies and short interpulse intervals. Wing vibrations displayed by successful large males during copulation attempt had higher frequencies over smaller males and unsuccessful large males. In no‐competition conditions, large males achieved higher mating success with respect to smaller ones. Allowing large and small males to compete for a female, large males achieve more mating success over smaller ones. Mate choice by females may be based on selection of the larger males, able to produce high‐frequency wing vibrations. Such traits may be indicative of “good genes,” which under sexual selection could means good social‐interaction genes, or a good competitive manipulator of conspecifics.  相似文献   
87.
Pollinator and flowering plant interactions play a critical role in maintaining most terrestrial ecosystems, including agroecosystems. Although estimates of floral resource availability are essential to understand plant–pollinator relationships, no generally accepted methodology exists to date. We compared two methods for sampling floral resources in a single meadow. About every three days, we recorded species lists of insect-pollinated plants with abundance categories assigned to each species (hereafter referred to as scanning) and we counted the flowering shoots in 36 2 × 2 m quadrats (hereafter quadrat sampling). These methods were compared with respect to (i) the number of species detected, (ii) estimated floral resource abundance, and (iii) temporal changes in flowering. With scanning, we found more potential nectar-plant species and species were found earlier than with quadrat sampling. With the latter, abundant species were found with higher probability than the scarce. Flower abundances were correlated between the two methods. We predicted that a cover of 6.3 ± 3.6% should be used for an appropriate estimate of flower abundance in our study site, although the optimal cover probably varies across different habitats. Furthermore, flower abundance changed 6% per day compared to the flowering peak. Overall, scanning seems to be more appropriate for detecting presence and the timing of species, while quadrats may provide higher resolution for abundance estimates. Increased sampling coverage and frequency may enhance research accuracy and using scanning and quadrat sampling simultaneously may help to optimize research effort. We encourage further development of sampling protocols.  相似文献   
88.
The role of ethnic resources in the educational success of immigrants is highly disputed. Combining arguments of segmented assimilation and Coleman's concept of family social capital, this study investigates whether speaking one's language of origin at home relates to achievement by facilitating the mobilization of resources or their transmission from parents to children. Mediating and moderating mechanisms are disentangled and empirically questioned in regression models that predict the mathematical competences of immigrant students from Turkey, Poland and the former Soviet Union. Based on data from the German National Educational Panel Study, the results contradict the assumption that foreign language use will contribute to education through mechanisms of social capital. Regardless of parental human capital or the group of origin, the language used at home does not affect the students’ learning when German language proficiency is accounted for.  相似文献   
89.
Bumble bee (Bombus) species are ecologically and economically important pollinators, and many species are in decline. In this article, we develop a mechanistic model to analyse growth trajectories of Bombus vosnesenskii colonies in relation to floral resources and land use. Queen production increased with floral resources and was higher in semi‐natural areas than on conventional farms. However, the most important parameter for queen production was the colony growth rate per flower, as opposed to the average number of available flowers. This result indicates the importance of understanding mechanisms of colony growth, in order to predict queen production and enhance bumble bee population viability. Our work highlights the importance of interpreting bumble bee conservation efforts in the context of overall population dynamics and provides a framework for doing so.  相似文献   
90.
甜荞是异花授粉作物,自然界中的甜荞种质资源多存在生物学混杂现象。每份甜荞种质资源可以分化出若干份新的遗传资源类型,其遗传背景复杂。简化甜荞种质资源的遗传背景,准确描述新品种的亲子代关系和遗传背景一直是世界荞麦工作者面对的技术难题。甜荞种质资源的繁育需要采取隔离措施,实施过程中需要考虑甜荞花粉粒大小、甜荞授粉机制、访问昆虫种类以及种子量多少等。为解决上述问题,本研究建立了以隔离杂交圃、隔离单繁圃、隔离扩繁圃、隔离比较圃和田间试验圃的荞麦繁育新方法——"五圃法",以期开发出不同类型的新的荞麦资源,在育种中可针对性的配制强优势组合,为新品种选育提供种质材料。  相似文献   
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