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排序方式: 共有515条查询结果,搜索用时 993 毫秒
191.
Sinia Sareen Frances L. Doyle Lindsay J. Kemp Jaimie C. Northam Bronte G. Morgan Eva R. Kimonis Jenny L. Richmond Mike E. Le Pelley Valsamma Eapen Paul J. Frick David J. Hawes Caroline Moul Divya Mehta Mark R. Dadds 《Infancy》2022,27(1):46-66
An attentional bias toward threat has been theorized to be a normative aspect of infants' threat and safety learning, and an indicator of risk for internalizing psychopathology in older populations. To date, only four studies have examined this bias using the dot-probe task in infancy and the findings are mixed. We extended the literature by examining patterns of attention to threat in a culturally and linguistically diverse sample of infants aged 5–11 months old (N = 151) using all measures previously employed in the infant dot-probe literature. Given that an attentional bias toward threat is associated with higher risk of developing anxiety disorders later in life, we also examined how negative affect—an early correlate of later anxiety disorders—is related to attentional bias toward threat in infancy. This study was the first to use a consistent measure of negative affect across the whole sample. An eye-tracking dot-probe task was used to examine attentional bias toward threat (i.e., angry faces) relative to positive (i.e., happy faces) stimuli. Results showed that an attention bias to threat was not characteristic of infants at this age, and negative affect did not moderate the putative relationship between attention and emotional faces (angry, happy). These findings therefore suggest that attention biases to socio-emotional threat may not have emerged by 11 months old. 相似文献
192.
193.
This paper explores how formalization of employee selection procedures for the purpose of ensuring equality of opportunity can become so extensive that the intended outcome of fairness is undermined. Drawing on empirical evidence from a large media organization, the analysis reveals the detrimental impact of formalization in relation to the recruitment of ethnic minority staff. While the existing literature describes how, during recruitment of employees, the circumvention of formal equality procedures can occur through managerial neglect and manipulation, the analysis in this paper shows that, paradoxically, circumvention can also occur through compliance with procedures. This new category takes three forms (robotic, defensive and malicious) and appears under conditions of excessive formalization – the term hyper‐formalization is coined to describe this. The paper develops new concepts that add to understanding of the limitations of equality and diversity procedures, and brings fresh challenges to some of the liberal assumptions about the efficacy and desirability of formalization for achieving fairness. 相似文献
194.
The recent occurrence of severe major accidents has brought to light flaws and limitations of hazard identification (HAZID) processes performed for safety reports, as in the accidents at Toulouse (France) and Buncefield (UK), where the accident scenarios that occurred were not captured by HAZID techniques. This study focuses on this type of atypical accident scenario deviating from normal expectations. The main purpose is to analyze the examples of atypical accidents mentioned and to attempt to identify them through the application of a well-known methodology such as the bow-tie analysis. To these aims, the concept of atypical event is accurately defined. Early warnings, causes, consequences, and occurrence mechanisms of the specific events are widely studied and general failures of risk assessment, management, and governance isolated. These activities contribute to outline a set of targeted recommendations, addressing transversal common deficiencies and also demonstrating how a better management of knowledge from the study of past events can support future risk assessment processes in the identification of atypical accident scenarios. Thus, a new methodology is not suggested; rather, a specific approach coordinating a more effective use of experience and available information is described, to suggest that lessons to be learned from past accidents can be effectively translated into actions of prevention. 相似文献
195.
Current debates in global strategy 总被引:1,自引:0,他引:1
Debates help drive research forward. This paper is unique in its review of four current debates in the global strategy arena: (1) cultural vs institutional distance; (2) global vs regional geographic diversification; (3) convergence vs divergence in corporate governance; and (4) domestic vs overseas corporate social responsibility. For each debate, the history is tracked and the emerging tension highlighted. By introducing both sides of four lively and timely debates, the paper provides an innovative way of reviewing the literature and helping to advance the field. It is argued that an underlying theme connecting these four diverse debates is the institution-based view of global strategy. 相似文献
196.
The issue of coopetition, the coexistence of cooperation and competition, has recently come to the fore in the strategic management field. Previous coopetition research has focused on the intra‐organizational level, inter‐organizational level and triad level, but less attention has been paid to coopetition at the network level. The purpose of this paper is to address the coexistence of competition and cooperation between networks, and to depict how networks with different structures interact with each other. Drawing from a detailed case study of two healthcare networks in Taiwan, we demonstrate how they first initiated competition, followed by cooperation and then coopetition. From our analysis of this example of network coopetition, we develop three propositions that address the forces driving competition and cooperation and the different structures that allow competition and cooperation to coexist. We found that two organizations will compete and cooperate simultaneously when each organization has complementary but distinctly different sets of resources and when the field of competition is distinctly separate from the field of cooperation. In addition, two networks will find it easier to balance competition and cooperation when each network has compatible but distinctly different structures. We argue that the simultaneous existence of cooperation and competition is not dependent on closeness to the customer, as previously suggested in the literature, but on the balance between the forces for cooperation and for competition. We suggest from this research that networks can maintain the balance between competition and cooperation when they act using different structures. Finally, we discuss the implications of the value of competition and then coopetition at multiple levels of analysis and the implications for future research from a practical perspective. 相似文献
197.
Mike Jacroux 《统计学通讯:理论与方法》2013,42(9):1337-1349
In this article we will consider industrial experiments in which some experimental factors have hard to change levels and others have levels which are easy to change. In such situations, fractional factorial split plot designs are often used where the hard to change factors are included as a subset of the whole plot factors and the easy to change factors make up the subplot factors. Here we consider the problem of finding two-level split plot designs which have minimum aberration among those designs which also minimize the number of level changes for the hard to change factors. 相似文献
198.
ABSTRACTIn this article, we consider experimental situations in which m two-lever factors are to be studied using a two-level main effects plan involving n runs which are partitioned into b blocks of size k =?n/b. For the casen ≡ 1(mod?4) and b???k, we derive some new methods of constructing E-optimal designs which tend to be highly efficient under other optimality criteria as well. 相似文献
199.
Let X= (X1,…, Xk)’ be a k-variate (k ≥ 2) normal random vector with unknown population mean vector μ = (μ1 ,…, μk)’ and covariance matrix Σ of order k and let μ[1] ≤ … ≤ μ[k] be the ordered values of the μ ’ s. No prior knowledge of the pairing of the μ[i] with the Xj. (or μ[i] with the σj 2) is assumed for any i and j (1 ≤ i, j ≤ k). Based on a random sample of N independent vector observations on X, this paper considers both upper and lower (one-sided) and two-sided 100γ% (0 < γ < 1) confidence intervals for μ[k] and μ[1], the largest and the smallest mean, respectively, when Σ is known and when Σ is equal to σ2R with common unknown variance σ2 > 0 and correlation matrix R known, respectively. An optimum two-sided confidence interval via finding the shortest length from this class is also considered. Necessary tables and computer program to actually apply these procedures are provided. 相似文献
200.
The 'Normal' and the Monstrous in Disability Research 总被引:1,自引:1,他引:0
Mike Clear 《Disability & Society》1999,14(4):435-448
Based on the key assumptions of a critical social research commited to a fairer society and that all knowledge is political, this paper highlights the way in which 'normal' research whether quantitative or qualitative can regulate and discipline research and effectively conceal important knowledge, and in this way control (discipline) substantive research outcomes. The concept of 'monstrous' can refer to repressed issues of disability, reprehensible social conditions of disability and research processes. The paper contributes to the ongoing discussion of doing and writing disability research by revisiting research as politics, exposing the meeting point of modern and post-modern approaches, and proposing a stronger materiality, and reintegration of theory and practice. The implications are that we need a personalised approach to explore critically across disciplinary boundaries, beyond unilateral discourse and into assumed knowledge. The paper discusses some key approaches, which when taken together support critical exploration. 相似文献