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排序方式: 共有1511条查询结果,搜索用时 15 毫秒
1.
This study provides an historical overview of the IDF Spokesperson’s Unit (ISU) from the early years of the State of Israel until 2009. Analyzing five periods during which the ISU played a key role in Israel's public diplomacy, this research sheds light on the challenges the ISU faced in different periods and circumstances and examines how the ISU tried to modify its methods and actions in response to geopolitical changes and media development, albeit not always successfully. The study suggests better understanding the adaptation process by applying a three-layer framework for analysis: the tactical layer, the strategic layer and the perceptional layer. The findings of this work demonstrate that in adapting to new circumstances, the ISU focused mainly on the tactical response level, with the result that it did not undertake any review or debate over the need for deeper perceptional changes in ISU policies.  相似文献   
2.
制造业是我国国民经济的支柱产业,但也是环境污染物排放的主要来源、能源消耗主体和温室气体排放大户。制造系统高能耗、高物耗、高碳排放的加工过程是造成制造业碳排放量大的重要原因。生产单元作为制造系统的加工的主体,其碳排放量的核算是确定整个制造系统乃至制造业碳排放总量的关键。本文首先对生产单元的原材料、电能、辅助物料及废屑处理所引起的碳排放进行分析,确定生产单元的碳排放源;其次,产品合格率的不同会造成生产单元输入及输出的成品/半成品数量的差异,进而影响生产单元单位产品的碳排放量,在此基础上,综合考虑了原材料、电能、辅助物料及废屑处理的碳排放情况,构建了给定工艺流程下生产单元碳排放核算模型。最后,结合一汽车排气装置加工实例,分别核算加工过程中九个生产单元的碳排放量,验证了模型的可行性。  相似文献   
3.
This article develops two block bootstrap-based panel predictability test procedures that are valid under very general conditions. Some of the allowable features include cross-sectional dependence, heterogeneous predictive slopes, persistent predictors, and complex error dynamics, including cross-unit endogeneity. While the first test procedure tests if there is any predictability at all, the second procedure determines the units for which predictability holds in case of a rejection by the first. A weak unit root framework is adopted to allow persistent predictors, and a novel theory is developed to establish asymptotic validity of the proposed bootstrap. Simulations are used to evaluate the performance of our tests in small samples, and their implementation is illustrated through an empirical application to stock returns.  相似文献   
4.
One medical specialty classification system applicable for research and career counseling is the person‐oriented versus technique‐oriented taxonomy. Given that the model was conceptualized in the 1960s, verification based on how medical specialties are practiced and viewed today is necessary. Five specialists in medical career development and advising verified the categorization of specialties. Based on their review, 100% consensus was reached regarding grouping of specialties. This outcome validates the taxonomy of medical specialties and supports its continued use for medical career specialty advising and choice.  相似文献   
5.
为实现曲柄群驱动机构的模块化设计与生产,定义曲柄单元为该机构的基本单元,以曲柄单元为基础研究曲柄 群驱动机构模块化设计中的摆动力平衡问题。研究了影响平衡块质量及配置位置的因素。分析表明,当在所有曲柄的 反方向配置参数相同的平衡决时,平衡决的质量矩与机构中的曲柄个数,曲柄的质量与长度,运动连杆总质量有关。得 出一种满足模块化设计与生产的方法,该方法能快速有效地实现曲柄群驱动机构单元化平衡  相似文献   
6.
We show that the Lagrange multiplier (LM) unit root test exhibits size distortions when a break in the innovation variance exists but is ignored. We develop a modified LM unit root test that is based on a generalized least-squares transformation of the original series. The asymptotic null distribution of the new modified LM unit root test is derived. Finite-sample simulation evidence shows that the modified LM unit root test maintains its size and has reasonable power against the trend stationary alternative.  相似文献   
7.
伴随《中华人民共和国民法总则》以及《最高人民法院关于适用〈中华人民共和国公司法〉若干问题的规定(四)》的施行,公司章程在公司法人治理中的地位进一步得到提升。但现代性条件下股东、公司法人以及外部社会之间的张力尚存,且现有法人理论不足以支撑公司尤其是有限责任公司的治理实践。为更好地规范涉章决议以避免其侵害股东权益,仍需进一步发掘我国公司法人理论。从股东在有限责任公司法人共同体中的特殊性权利义务出发,在公司法人差异化,章程、股东权类型化的前提下实现股东合法利益的最大化。  相似文献   
8.
ABSTRACT

Engagement of individuals with serious mental illnesses in community mental health services is a significant challenge. The Program of Assertive Community Treatment (PACT) is an individual-centered and self-contained mental health program that provides psychiatric treatment, rehabilitation, and support services to persons with serious mental illness who have a history of or likelihood of disengagement with services. Understanding what helps and hinders consumers’ involvement in PACT services may provide information on how to tailor engagement strategies to individuals based on their treatment needs and preferences. The current study builds on existing studies by exploring factors that help and hinder engagement in PACT services from the perspectives of individuals receiving treatment. We conducted open-ended, semi-structured interviews with 17 individuals receiving PACT services. Nine themes were identified through thematic analysis: Desirable qualities of PACT, Focusing on positive outcomes, PACT as a safety net, Recovery orientation, Practical barriers, Conflictual relationships, and Medication side-effects. We conclude that the development of a trusting, therapeutic relationship that is collaborative and person-centered and that is facilitated by both practical and emotional support is critical to engaging individuals in treatment and maximizing positive outcomes.  相似文献   
9.
本文将推销人员的印象整饰置于大视野之下,认为应经由自内而外和自外而内两条途径进行,最终成就“诚之于中而形之于外”——达致内外和谐统一的整饰。文章对此作了理论和操作层面的探讨与阐述:内在途径是树立以推销对象为本、以使用价值为要的推销观和建构以予为取,予与欲同,显予之形,隐取之迹的取予观;并建立坚定的内在信念和进行持久的心理训练。外在途径是对自身视觉元素进行管理时,要以凭藉视觉传达、着眼掩瑕扬瑜、满足角色期望和谨守行礼如仪为管理理念;以仿象他人沟通方式,考虑推销对象背景,传递推销商品信息和呈示相关价值观念为配置策略。  相似文献   
10.
保险费的交付义务可否由第三人代为履行是一个颇值得探讨的问题.笔者分别从财产保险合同与人身保险合同两方面对这一问题进行了论述.在财产保险合同中,保险费的交付在性质上与一般债务相同,所以由任意第三人代付保险费也应为事理所允许;在人身保险合同中,因其以保障被保险人的生命、安全为主要目的,为防止主观危险,应该认为其保险费的交付是具有特殊性质的债务,不得由任意第三人代付.  相似文献   
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