Racial/Ethnic Minority Community College Students' Critical Consciousness and Social Cognitive Career Outcomes

A need exists to better understand how racial/ethnic minority students' critical consciousness development in response to marginalization may be involved in their educational and career development. We therefore examined the link between critical consciousness development and career decision self-efficacy and career outcome expectations among racial/ethnic minority community college students. Following social cognitive career theory's conceptual pillars, we developed a testable model integrating critical consciousness and social cognitive variables. This model was tested with 135 racially and ethnically diverse community college students. Data analysis included path analyses and tests of model fit using structural equation modeling. Results suggested that (a) higher critical agency is linked to higher career decision self-efficacy and outcome expectations and (b) critical action and reflection have a bidirectional link and predict higher critical agency. Implications for research and practice aiming to close educational and career gaps among racial/ethnic minorities are discussed.     

Defender–Attacker Games with Asymmetric Player Utilities

The presence of strategic attackers has become an important factor in the security and protection of systems, especially since the 9/11/2001 attacks, and considerable efforts have been dedicated to its study. When defending against the strategic attacker, many existing studies assume that the attacker would seek to minimize the defender's utility, which implies that the defender and attacker have symmetric utilities. However, the attacker's objective is determined by its own valuation of the system and target of the attack, which is not necessarily consistent with the defender's utility. If the attacker unexpectedly targets a different utility, then the defense strategy might no longer be optimal. In particular, the defense strategy could be inferior if the attacker's utility is not known to the defender. This study considers a situation where the defender's utility is the system survivability and the attacker's utility is the expected number of destroyed elements in the system. We investigate possible attack strategies under these two different utilities and compare (a) the conservative defense strategy when the attack utility is unknown to the defender with (b) the optimal defense strategy when the attack utility is known to the defender. We show that the conservative protection strategy is still optimal under asymmetric utilities when the contest intensity is smaller than one.     

Restricted minimax estimation in semiparametric linear models

Abstract

In this article we develop the minimax estimation approach of general linear models to the semiparametric linear models when the parameters are simultaneously constrained by an ellipsoid and linear restrictions. Combining sample information and prior constraints the minimax estimator is obtained and compared with partially least square estimator by theoretical and simulation methods.     

Defining social work leadership: a theoretical and conceptual review and analysis

With the recent increase in social work leadership literature, a few issues in research and practice have come to light. Social work research employs leadership theory derived from military leadership principles adjusted for application in corporate entities, which have decidedly different goals and processes than social work organisations. These models may be influencing the methods of social work leadership research such that study outcomes reflect business-based rather than human service processes and goals. A dearth of leadership education in social work schools and in professional social work settings contributes to a paucity of social workers in upper level administrative roles. A systematic theoretical literature review on social work leadership is conducted in order to generate a working definition of social work leadership and a series of multi-level social work leadership principles. Implications for future research and practice are discussed.     

Tweeting about emergency: A semantic network analysis of government organizations’ social media messaging during Hurricane Harvey

While social media like Twitter have been increasingly adopted by public-sector organizations, it remains less explored as to how government and emergency management (EM) organizations use these platforms to communicate with the public in response to emerging natural disasters. Extending the Situational Crisis Communication Theory (SCCT) to the realm of social media, this study examines the emerging semantic networks from 67 government and EM organizations’ official tweets during Hurricane Harvey over a three-week period. It identifies how multiple crisis response strategies—including instructing information, adjusting information, and bolstering—are constituted of different issues, actions, and organizational actors before, during, and immediately after the disaster event. Results suggest that government agencies use the strategy of instructing information predominantly before and during the disaster, whereas adjusting information and bolstering strategies are utilized more during post-disaster recovery. The study offers theoretical and practical implications of using a semantic network approach to studying organizational crisis responses.     

Sensemaking in crisis situations: Drawing insights from epic war novels

Soldiers operate under conditions of extreme uncertainty and danger, in which sensemaking is both crucial and challenging. A grounded theory analysis of four epic war novels by veterans (Tolstoy, Remarque, Heller, O’Brien) provides insights into soldiers' sensemaking in combat. The findings are of theoretical and methodological relevance. Theoretically, this article contributes to sensemaking theory by identifying alternative sensemaking pathways besides the traditional enactment-selection-retention model. Additionally, while existing literature suggests that sensemaking failures result in organizational breakdown, this study shows that personnel may continue to do their work in the (fictional) belief that other organizational members can still make sense of the situation. Finally, methodologically, this article introduces grounded theory as a systematic approach to analyzing novels in contrast to current heterogeneous uses of literary fiction in organization and management studies.     

Who Should Pay for Interdependent Risk? Policy Implications for Security Interdependence Among Airports

We study interdependent risks in security, and shed light on the economic and policy implications of increasing security interdependence in presence of reactive attackers. We investigate the impact of potential public policy arrangements on the security of a group of interdependent organizations, namely, airports. Focusing on security expenditures and costs to society, as assessed by a social planner, to individual airports and to attackers, we first develop a game-theoretic framework, and derive explicit Nash equilibrium and socially optimal solutions in the airports network. We then conduct numerical experiments mirroring real-world cyber scenarios, to assess how a change in interdependence impact the airports' security expenditures, the overall expected costs to society, and the fairness of security financing. Our study provides insights on the economic and policy implications for the United States, Europe, and Asia.     

国家治理体系与政府购买公共服务

政府购买公共服务关系到政府职能的转变和政府治理水平的提升,关系到政府与市场之间功能与地位的调整与理顺,因而是国家治理体系的重要一环。政府购买公共服务背后体现的是国家治理体系现代化的取向,那么在理论逻辑上是要以新公共管理理论、政府治理、第三方治理和多中心治理理论为理论基石。目前,我国政府购买公共服务还存在着范围不清、关系不顺、法律不健全的制度现实,因而必须构建科学规范的现代化的政府购买服务制度和配套制度体系,以进一步推进国家治理体系的制度现代化。     

形似与神似，求真与求美--从本体诗歌翻译理论的角度分析

本体诗歌翻译理论主要探讨译文与原文在形式与内容上的关系。译文与原文应该达到形似还是神似，译者应该求真还是求美，这是翻译界一直争论的话题。按照“形似与神似，求真与求美”的关系来分析江枫先生对艾米莉·狄金森的两首诗歌“暴风雨夜”和“篱笆那边”的翻译，可以看出，标点符号、遣词、诗歌的韵式和诗人的创作风格等方面体现了江枫译文的特点和风格：译文选词简单但富有张力，行文简约而内敛，与原诗风格颇似；但由于过于追求简约而稍显生硬和晦涩。总之，江枫的译文是形似与神似结合的典范，体现其“形似而后神似”的主张以及“简约而忠实”的风格，但并未完全实现“求真与求美”的完美结合。     

Security Investment in Contagious Networks

Security of the systems is normally interdependent in such a way that security risks of one part affect other parts and threats spread through the vulnerable links in the network. So, the risks of the systems can be mitigated through investments in the security of interconnecting links. This article takes an innovative look at the problem of security investment of nodes on their vulnerable links in a given contagious network as a game‐theoretic model that can be applied to a variety of applications including information systems. In the proposed game model, each node computes its corresponding risk based on the value of its assets, vulnerabilities, and threats to determine the optimum level of security investments on its external links respecting its limited budget. Furthermore, direct and indirect nonlinear influences of a node's security investment on the risks of other nodes are considered. The existence and uniqueness of the game's Nash equilibrium in the proposed game are also proved. Further analysis of the model in a practical case revealed that taking advantage of the investment effects of other players, perfectly rational players (i.e., those who use the utility function of the proposed game model) make more cost‐effective decisions than selfish nonrational or semirational players.