首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到10条相似文献,搜索用时 203 毫秒
1.
Presents the Guidelines on Multicultural Education, Training, Research, Practice, and Organizational Change for Psychologists. These guidelines reflect the continuing evolution of the study of psychology, changes in society at large, and emerging data about the different needs of particular individuals and groups historically marginalized or disenfranchised within and by psychology based on their ethnic/racial heritage and social group identity or membership. These guidelines reflect knowledge and skills needed for the profession in the midst of dramatic historic sociopolitical changes in US society, as well as needs of new constituencies, markets, and clients. The specific goals of these guidelines are to provide psychologists with (a) the rationale and needs for addressing multiculturalism and diversity in education, training, research, practice, and organizational change; (b) basic information, relevant terminology, current empirical research from psychology and related disciplines, and other data that support the proposed guidelines and underscore their importance; (c) references to enhance ongoing education, training, research, practice, and organizational change methodologies; and (d) paradigms that broaden the purview of psychology as a profession. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

2.
加压浸出作为一种高效的湿法冶金手段,迄今为止已在铜、锌、镍、钴等重金属行业,以及铀、钼、黄金和铂族等稀贵金属行业得到推广应用。总结了重有色金属铜、铅、锌、镍、钴行业和冶炼过程副产物加压浸出技术研究和工业化应用现状,包括复杂硫化铜矿、铜钴矿、硫化砷渣、黑铜泥、铜阳极泥、白烟尘和铜钴冶炼转炉渣加压浸出,复杂硫化锌矿、锌浸出渣、赤铁矿除铁、镓锗富集物、铜渣等加压浸出,硫化镍矿、红土镍矿、白合金、铜渣和钴冰铜加压浸出等。最后,对加压浸出技术在重有色金属行业未来发展趋势进行了展望。  相似文献   

3.
Obituary [Clara Mayo; 1931-1981]. When she died, Clara Mayo's teaching, researching, writing, and administering were very much in motion. Her primary goal, as always, was to understand and alleviate prejudice, sexism, and racism. Clara Mayo was a complete teacher, an indefatigable colleague, and a collaborator par excellence. In all three she urged us to be committed, and she showed us how to think and act with subtlety, passion, detachment, verve, and yes, with fun. Clara Mayo was committed to intellectual adventure and social justice, and in that she saw no contradiction and no end. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

4.
Techniques for measurement, modeling, and management of fluid mud are available, but research is needed to improve them. Fluid mud can be difficult to detect, measure, or sample, which has led to new instruments and new ways of using existing instruments. Multifrequency acoustic fathometers sense neither density nor viscosity and are, therefore, unreliable in measuring fluid mud. Nuclear density probes, towed sleds, seismic, and drop probes equipped with density meters offer the potential for accurate measurements. Numerical modeling of fluid mud requires solving governing equations for flow velocity, density, pressure, salinity, water surface, plus sediment submodels. A number of such models exist in one-, two-, and three-dimensional form, but they rely on empirical relationships that require substantial site-specific validation to observations. Management of fluid mud techniques can be classified as those that accomplish: Source control, formation control, and removal. Nautical depth, a fourth category, defines the channel bottom as a specific fluid mud density or alternative parameter as safe for navigation. Source control includes watershed management measures to keep fine sediment out of waterways and in-water measures such as structures and traps. Formation control methods include streamlined channels and structures plus other measures to reduce flocculation and structures that train currents. Removal methods include the traditional dredging and transport of dredged material plus agitation that contributes to formation control and/or nautical depth. Conditioning of fluid mud by dredging and aerating offers the possibility of improved navigability. Two examples—the Atchafalaya Bar Channel and Savannah Harbor—illustrate the use of measurements and management of fluid mud.  相似文献   

5.
介绍了某锌冶炼厂采用P507+N235组成的双溶剂萃取体系从硫酸浸出液中萃取砷铁的生产情况,并对高酸砷铁反萃溶液返回锌冶炼系统存在的问题进行分析。采用膜分离工艺处理反萃溶液,对比分析纳滤膜和扩散渗析膜分离的工艺条件和投资运行成本。结果表明,纳滤膜和扩散渗析膜均可以有效分离溶液中杂质元素:其中采用纳滤膜工艺时,截留浓液中铁、砷、锌、硫酸和油份的截留率分别为91.2%、88.55%、87.5%、47.44%和50%,酸回收利用率为52.56%;采用扩散渗析膜工艺,渗析残液中铁、砷、锌、硫酸和油份的截留率分别92%、87.94%、90%、5.13%和75%,酸回收利用率为94.87%。截留浓液和渗析残液均采用石灰中和法脱除溶液中的砷铁,过滤溶液返回系统实现资源循环利用,扩散渗析膜相比纳滤膜投资少,操作维护简单,生产成本低,更适合用于工业生产。  相似文献   

6.
Darwin's theories of natural selection and sexual selection are significant scientific achievements, although his understanding of race and gender was defined and limited by his own life circumstances and the sociohistorical context within which he worked. This article considers the ways in which race, gender, and culture were represented and explained by Darwin and the ways in which his observations and opinions on gender and race were taken up by others and, more often than not, misapplied. Whereas the challenge of race (for Darwin) was to demonstrate the fundamental similarity and, hence, the common origin, of human races, the challenge of gender (for Darwin) was to identify a mechanism that could account for differences between women and men that, to him, were obvious, fundamental, and significant. The article concludes by considering the implications of Darwin's views for contemporary scientific psychology. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

7.
Pesticide runoff loads from grass surfaces were estimated for 29 chemicals commonly applied to U.S. lawns and golf courses. Data on pesticide properties and typical application rates and schedules were developed and summarized as input parameters for the TurfPQ runoff model. Weather data for each of 9 U.S. cities were generated by the USCLIMATE model and modified by the addition of growing season irrigation. Simulation runs were made for each chemical, grass surface (lawns, greens, fairways), and city, and the results were summarized as mean annual and 1-in-10 year annual maximum daily pesticide loads. These loads varied greatly with pesticide, grass surface, and city, ranging from 0 to 875?g/ha for mean loads and 0 to 818?g/ha for 1-in-10 year daily loads. Mean annual loads averaged over the 29 chemicals and 3 grass surfaces were found to be closely related to growing season precipitation. Variations among the nine cities were well-captured by three general climate categories: Humid, characterized by abundant precipitation and warm temperatures, represented by Atlanta and Houston; temperate, with moderate precipitation and temperature, as with Albany, Columbus, Madison, and Olympia; and dry, with sparse precipitation, represented by Bismarck, Fresno, and Roswell. Mean annual pesticide runoff was 37, 9, and 2?g/ha in the humid, temperate, and dry regions, respectively.  相似文献   

8.
张福明 《中国冶金》2021,31(11):1-8
高炉炼铁的物理本质是铁素物质流在碳素能量流的驱动和作用下,按照设计的流程网络和运行程序,经过一系列复杂物理化学冶金反应过程,将铁矿石转变/转化为液态生铁的过程。碳素不仅是铁矿石还原过程的能量驱动源,也是生成铁水的重要非金属合金元素。面向全球“碳达峰”“碳中和”的发展形势,传统高炉必须在已有工艺技术的基础上进行改进、优化和创新,努力实现低碳化、高效化、绿色化、智能化等多重目标。提出了未来高炉在实现高效低碳的同时,必须从功能设计、装备设计和流程设计入手,遵循节能减排、低碳绿色新的发展理念,通过工艺优化、结构优化和技术开发,使传统高炉更加适应于炉料结构和燃料结构的变革,减少焦炭消耗和对其依赖,在碳素能量输入降低的条件下,形成新的耗散结构体系,进而实现高炉低碳高效炼铁的工程演进和技术发展。  相似文献   

9.
The relations of children's nonsocial behavior to their emotionality, regulation, and social functioning were examined in a short-term longitudinal study. Parents (primarily mothers) and teachers rated children's effortful regulation, emotionality, asocial behaviors, problem behaviors, and social acceptance, and children's nonsocial play behaviors were observed for two semesters. Peers also rated likability. Children's observed reticent activities were related to adults' ratings of high regulation, low externalizing problems, and high asocial behavior, as well as to low anger and low positive emotion. On the other hand, solitary play was associated with low positive emotion and low regulation over time and with high asocial behavior and high peer exclusion. Peer rejection mediated the relation of internalizing emotions (anxiety, low positive emotion) and regulation to solitary play later in the school year, and asocial play mediated the relation of internalizing emotions to both solitary and reticent play behavior. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

10.
It is clear that psychological aggression is both common in workplaces and harmful to individuals and organizations. An emerging line of research examines organizational responses to allegations of bullying and mobbing. As a result, some researchers now identify processes for detecting, correcting, and preventing bullying and mobbing. Strategies to improve the quality of working life such as surveillance, policy development, training, coaching, and the development of selection, performance management, and reward systems that set standards for collaborative and supportive behavior at work are all necessary to move organizations toward eliminating tolerance of bullying and mobbing. Consulting psychologists have the expertise to provide such interventions because of their in-depth understanding of personality, testing, and assessment, and the application of these concepts to selection, coaching, and performance management. The consulting psychologist brings an attention to human factors that humanize the workplace. The author reviews research on bullying and mobbing, adds practitioner insights based on 13 years of practice in this area, and discusses interventions applied in practice settings. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号