工作场所中的危机传播

运用危机传播理论及自然主义研究框架,通过对发生于2003年8月14日加拿大安大略省和魁北克省以及美国东北部和中西部等大部分地区遭遇的两国历史上最具深远影响力的电力故障的调查分析,试图收集一家大型联邦机构雇员在电力故障发生后一周内所作出的反应信息,并进行分析,发现了该组织机构中危机管理系统存在的问题。     

Gender and Infrastructure in the World Bank

This article conducts a critical analysis of the World Bank's current infrastructure strategy from a feminist perspective, arguing that failures to define gender and set meaningful targets and indicators have meant that gender has not been integrated into the implementation of infrastructure projects. It sets out three limitations to the Bank's approach to gender and infrastructure: lack of awareness of gender in the four sectors that comprise infrastructure; the Bank's narrow approach to gender equality and women's empowerment; and the failure of the Bank to mainstream gender in its current infrastructure strategy.     

Investment in health when health is stochastic

This paper applies stochastic control theory to the Grossman model of investment in health to characterize the case of a serious illness, i.e., one that permanently reduces the individual’s stock of health capital. Health itself is modelled as a stochastic variable, whose variation over time is determined partly by a deterministic factor and partly by a random factor with a Poisson distribution. After setting out the equations for the deterministic and stochastic approaches, phase diagrams illustrate how the introduction of uncertainty alters the model. The framework is also used to consider the effect of the introduction of a vaccine.

Allocation of Returned Products among Different Recovery Options through an Opportunity Cost–Based Dynamic Approach*

In a make‐to‐order product recovery environment, we consider the allocation decision for returned products decision under stochastic demand of a firm with three options: refurbishing to resell, parts harvesting, and recycling. We formulate the problem as a multiperiod Markov decision process (MDP) and present a linear programming (LP) approximation that provides an upper bound on the optimal objective function value of the MDP model. We then present two solution approaches to the MDP using the LP solution: a static approach that uses the LP solution directly and a dynamic approach that adopts a revenue management perspective and employs bid‐price controls technique where the LP is resolved after each demand arrival. We calculate the bid prices based on the shadow price interpretation of the dual variables for the inventory constraints and accept a demand if the marginal value is higher than the bid price. Since the need for solving the LP at each demand arrival requires a very efficient solution procedure, we present a transportation problem formulation of the LP via variable redefinitions and develop a one‐pass optimal solution procedure for it. We carry out an extensive numerical analysis to compare the two approaches and find that the dynamic approach provides better performance in all of the tested scenarios. Furthermore, the solutions obtained are within 2% of the upper bound on the optimal objective function value of the MDP model.     

Enhancing strength and postocclusive calf blood flow in older people with training with blood-flow restriction

The response of calf-muscle strength, resting blood flow, and postocclusive blood flow (PObf) were investigated after 4 wk of low-load resistance training (LLRT) with and without blood-flow restriction in a matched-leg design. Ten untrained older individuals age 62-73 yr performed unilateral plantar-flexion LLRT at 25% 1-repetition maximum (1RM). One limb was trained with normal blood flow and the other had blood flow restricted using a pressure cuff above the knee. 1RM, isometric maximal voluntary contraction, and isokinetic strength at 0.52 rad/s increased (p < .05) more after LLRT with blood-flow restriction than with normal blood flow. Peak PObf increased (p < .05) after LLRT with blood-flow restriction, compared with no change after LLRT with normal blood flow. These results suggest that 4 wk of LLRT with blood-flow restriction may be beneficial to older individuals to improve strength and blood-flow parameters.     

Nursing home deficiency citations for safety

Deficiency citations for safety violations in U.S. nursing homes from 2000 to 2007 are examined (representing a panel of 119,472 observations). Internal (i.e., operating characteristics of the facility), organizational factors (i.e., characteristics of the facility itself), and external factors (i.e., characteristics outside of the influence of the organization) associated with these deficiency citations are examined. The findings show that nursing homes increasingly receive deficiency citations for resident safety issues. Low staffing levels, poor quality of care, and an unfavorable Medicaid mix (occupancy and reimbursement) are associated with the likelihood of receiving deficiency citations for safety violations. In many cases, this likely influences the quality of life and quality of care of residents.     

Protecting children in new times: child protection and the risk society

This paper examines the nature of late-modern child protection by placing it in the context of the paradigm of `risk society'. It traces out a structural transformation in the relationship between expertise and lay people that has occurred since the 1970s which resulted in the emergence of child abuse inquiries and new public disclosures of professional 'failures'. The dynamic and empowering features of social developments are identified in how institutions, professionals and lay people re-appropriate power, knowledge and reskill themselves. Traditionally repressed problems like child sexual abuse have gained recognition in a context where abused women and children – like all late-modern citizens – are reflexively engaged in constructing their own biographies and using expertise in the planning of their life projects. A radically new professional risk consciousness in child protection is traced to late-modern existential crises associated with death and sexuality and the emergence of manufactured risk, which is known and experienced by social workers as risk in the context of radically uncertain futures for children. Drawing on the work of sociologists of 'reflexive modernity', the paper aims to advance our understandings of social work and child protection beyond the one-dimensional focus of post-modernist critics on power, control and bureaucracy to recognize the new opportunities, as well as the dangers, involved in child protection in risk society.