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.     

Mixture structure analysis using the Akaike Information Criterion and the bootstrap

Given i.i.d. observations x1,x2,x3,...,xn drawn from a mixture of normal terms, one is often interested in determining the number of terms in the mixture and their defining parameters. Although the problem of determining the number of terms is intractable under the most general assumptions, there is hope of elucidating the mixture structure given appropriate caveats on the underlying mixture. This paper examines a new approach to this problem based on the use of Akaike Information Criterion (AIC) based pruning of data driven mixture models which are obtained from resampled data sets. Results of the application of this procedure to artificially generated data sets and a real world data set are provided.     

Bottleneck identification and ranking model for mine operations

Abstract

Mining has a long history of production and operations management. Considering the increasing complexity of reserves, declining metal grades, and worldwide price volatilities, mines have to operate more efficiently than ever. In recent years, companies have been adopting innovative solutions and technologies to reduce costs and remain competitive in the global market. Specifically, management of bottlenecks has been in the focus of the manufacturing industry for decades now. The mining industry has made significant advancements in process improvement tools using equipment, human, and asset tracking capabilities. However, to date, there is no holistic approach or system to identify and manage the bottleneck in the entire value chain of mining. This research proposes a new method to identify and rank the bottlenecks in a mine value chain. The method is applied in a coal mine and the results are presented in the case study.     

BACKLASH, THE MATRIX OF DOMINATION, AND LOG CABIN REPUBLICANS

This article focuses on Log Cabin Republicans, gay members of that political party who reject "queer' politics and "leftist' projects among lesbian and gay activists. We show that members' social class, race, age, and gender are as central to an understanding of Log Cabin politics as is their nonnormative sexuality. The case of the Log Cabin Republicans illustrates how the matrix of domination is reaffirmed in backlash rhetoric and related so-ciopolitical practices. It also shows that the gay community comprises multiple, divergent subgroups that make the boundaries between lesbigay and straight politics more or less ambiguous and fluid. Put differently, the Log Cabin Republicans illuminate the practical limits of identity politics.
Early in the twentieth century, a gay white middle-class male observed:
Not till our whole commercial system, with its barter and sale of human labor and human love for gain, is done away, and not till a whole new code of ideals and customs of life has come in, will women really be free. They must remember that their cause is also the cause of the oppressed laborer over the whole earth, and the laborer has to remember that his cause is theirs. (Carpenter 1911, p. 60)     

Digital hyperconnectivity and the self

Theory and Society - Digital hyperconnectivity is a defining fact of our time. In addition to recasting social interaction, culture, economics, and politics, it has profoundly transformed the self....     

Qualitative cost–benefit evaluation of complex,emergent programs

This paper discusses a methodology used for a qualitative cost–benefit evaluation of a complex, emergent program. Complex, emergent programs, where implementation varies considerably over time and across sites to respond to local needs and opportunities, present challenges to conventional methods for cost–benefit evaluation. Such programs are characterized by: ill-defined boundaries of what constitutes the intervention, and hence the resources used; non-standardized procedures; differing short-term outcomes across projects, even within the same long-term goals; and outcomes that are the result of multiple factors and co-production, making counter-factual approaches to attribution inadequate and the use of standardized outcome measures problematic. The paper discusses the advantages and limitations of this method and its implications for cost–benefit evaluation of complex programs.     

Truth-in-sentencing, law enforcement, and inmate population growth

This paper presents the empirical estimation of an econometric model of the flow of prisoners into a state correctional system. Specifically, an econometric model was built to control for the number of parolees, the probability of admission to the state system, the size of the state population, the unemployment and poverty rates, the number of law enforcement officers within the state, and the state-wide “truth-in-sentencing” law, which requires convicts to serve at least 85% of their sentences. One primary result was that increases in the number of law enforcement officers has generated a decline in the growth rate of the prison population. This suggests that a “deterrent effect” is created when more police are placed on the beat. Furthermore, the results indicate that the truth-in-sentencing law has also slowed the rate of inmate population growth. This finding may reflect the growing trend for courts to hand down nontraditional sentences and to adjust prison sentences to reflect a constant “real time” of incarceration by crime.