Passenger Rail Security,Planning, and Resilience: Application of Network,Plume, and Economic Simulation Models as Decision Support Tools

We built three simulation models that can assist rail transit planners and operators to evaluate high and low probability rail‐centered hazard events that could lead to serious consequences for rail‐centered networks and their surrounding regions. Our key objective is to provide these models to users who, through planning with these models, can prevent events or more effectively react to them. The first of the three models is an industrial systems simulation tool that closely replicates rail passenger traffic flows between New York Penn Station and Trenton, New Jersey. Second, we built and used a line source plume model to trace chemical plumes released by a slow‐moving freight train that could impact rail passengers, as well as people in surrounding areas. Third, we crafted an economic simulation model that estimates the regional economic consequences of a variety of rail‐related hazard events through the year 2020. Each model can work independently of the others. However, used together they help provide a coherent story about what could happen and set the stage for planning that should make rail‐centered transport systems more resistant and resilient to hazard events. We highlight the limitations and opportunities presented by using these models individually or in sequence.     

Using portfolios to stimulate critical thinking in social work education

Each generation of social work educators has grappled with the best way to teach students to become competent social workers. Critical thinking has become one goal in social work education. This paper is premised on the assumption that social work students can develop critical thinking abilities through portfolios. The theory behind the use of portfolios in social work education is a 'hand-in-glove fit' with critical thinking. In addition, portfolios are consonant with social work values of self-determination and individualisation. Portfolios are compendiums of purposefully selected student work to show that the objectives of a programme have been met. They are also useful as an alternative method of student evaluation. Portfolios and critical thinking are partners in educating students to become competent social workers.     

Collective Self-Esteem and Coping Strategies among Vietnamese American Adolescents

This article reports on the “social empathy attitudes” results that were part of a larger study on empathy in college students at a large research university in the Southwest. Two hundred ninety-four students completed the Social Empathy Assessment Index (SEAI). The research hypothesis was that students of color would have higher levels of social empathy attitudes than Caucasian students. The statistically significant SEAI items suggested that Latino students identify as more collectivist and more optimistic and have higher levels of social empathy attitudes. Latinos may be more willing to help a stranger than either Caucasians or members of other racial groups.     

Accounting for Victimization: Social Constructionist Perspectives

This paper reviews research and theory on the social construction of victims and victimization. There are four areas of inquiry: victims’ self‐processes, the collaborative accomplishment of victimization, social problems claims‐making, and social movement framing. Scholars in each area take a symbolic interactionist perspective. Because victimization is potentially stigmatizing, much of this research and analysis draws on the literature on vocabularies of motive, aligning activities, and accounts. Literature on self‐processes examines how victims come to see themselves as victims and their situations as deviant. Often, when they try to establish their victim identities with others, they can be discredited or blamed if they do not meet expectations of typical victims. When people want to show that a social problem exists, they use images of victims to evoke sympathy and other emotions. Sometimes, collective identities may not be sympathetic, and also need to be managed, through the framing work of activists.     

Mothers' and Fathers' Use of Internal State Talk with their Young Children

The present study extends previous results demonstrating a relation between maternal discourse and child social understanding to include paternal discourse. Emotion understanding (EU) and theory of mind (ToM) were considered as two distinctive aspects of social understanding. Participants were 106 children (54 boys and 52 girls) studied at 3.5 and 5 years. Discourse measures came from separate parent–child conversations during a picture‐book task; measures of EU and ToM came from children's performance on social cognition tasks. Differences in parental talk translated into important differences in the influence of each parent on children's social‐cognitive understanding. Mothers' references to emotion and emotion causal explanatory language predicted children's concurrent EU. Fathers' use of causal explanatory language referring to desires and emotions predicted children's concurrent and later ToM. These results highlight important differences between mothers and fathers in their use of internal state language and its impact on children's social‐cognitive understanding.     

Discovering Spatio-Temporal Models of the Spread of West Nile Virus

Emerging infectious diseases are characterized by complex interactions among disease agents, vectors, wildlife, humans, and the environment. Since the appearance of West Nile virus (WNV) in New York City in 1999, it has infected over 8,000 people in the United States, resulting in several hundred deaths in 46 contiguous states. The virus is transmitted by mosquitoes and maintained in various bird reservoir hosts. Its unexpected introduction, high morbidity, and rapid spread have left public health agencies facing severe time constraints in a theory-poor environment, dependent largely on observational data collected by independent survey efforts and much uncertainty. Current knowledge may be expressed as a priori constraints on models learned from data. Accordingly, we applied a Bayesian probabilistic relational approach to generate spatially and temporally linked models from heterogeneous data sources. Using data collected from multiple independent sources in Maryland, we discovered the integrated context in which infected birds are plausible indicators for positive mosquito pools and human cases for 2001 and 2002.     

Social Class in Public Schools

This article shows the pattern of socioeconomic class differences in schooling outcomes and indicates some of the causes for those differences that lie within the public realm. Those causes include "nested inequalities" across boundaries of states, school districts, schools within a district, classes within a school, and sometimes separation within a class. In addition, urban public schools demonstrate a particular set of problems that generate differential schooling outcomes by economic class. The article also demonstrates ways in which class biases are closely entwined with racial and ethnic inequities. It concludes with the broad outlines of what would be necessary to reduce class (and racial) disparities in American public schools .

The American dream will succeed or fail in the 21 ^st century in direct proportion to our commitment to educate every person in the United States of America.
            —President Bill Clinton, 1995 ( Clinton, 1995 : 617)

There is no greater test of our national responsibility than the quality of the education we provide.
      —Democratic presidential candidate Al Gore, 2000 ( Gore, 2000 )

Both parties have been talking about education for quite a while. It's time to come together to get it done, so that we can truthfully say in America: No child will be left behind.
                —President George W. Bush, 2001 ( Bush, 2001 )