Technological newness: An empirical study in the process industries

Technological change in product development is a crucial issue in the management of technology. The entire sweep of technological changes over the past hundred of years is, in essence, the sum of thousands of individual product development projects in thousands of firms. Yet the degree of technological change in individual development projects has not been extensively studied. This paper presents a four-dimensional characterization of technological newness for product development projects in the process industries in which product development is closely tied to process innovation. The characterization uses four dimensions of change that are required in the development of new products: chemistry, production equipment, fabrication technology and process control. Based on the framework of technological newness, the paper presents data collected on the degree of process change in a set of 20 product development projects conducted by a large manufacturer of advanced polymers. The data provide a clear demonstration of the value of the measurement framework, showing a strong relationship between the characterization of change and the project performance.     

Infants at risk: Marker variables related to the early lives of children

This archival research, based on extensive case files, describes extremely disruptive family events and child characteristics in a sample of 29 infants whose parents' rights have been terminated. The term "marker variable" is used to underscore the potential importance of those events in understanding developmental trajectories of children because many of the events are markers for family situations that disrupt the caregiving environment. Thus, these events become significant intervening variables in development research and psychopathology. Following a review of theory, an analysis of events as revealed in the case studies, and a closer look at four representative cases, implications for practice and policy are discussed.     

Social Class,Cultural Repertoires,and Popular Culture: The Case of Film

This research examines two different conceptions of the relationship between social class and familiarity with popular culture in the United States. Specifically, it focuses on differences between members of the upper-middle class and members of the lower-middle class in terms of their film viewing practices. The data for this analysis was obtained from a survey of 364 individuals randomly selected from two neighborhoods in a medium-sized city, one predominantly upper-middle class and the other predominantly lower-middle class. Members of the upper-middle class view more art films, as well as more classic films and blockbuster films, than members of the lower-middle class. These differences are largely attributable to the fact that members of the upper-middle class view more films both in theaters and on videocassettes than members of the lower-middle class. Moreover, these differences are reduced, but not entirely eliminated, by the fact that members of the lower-middle class view more films on television than members of the upper-middle class. Finally, these differences in the film-viewing practices of the members of these two social classes, as identified by their neighborhood of residence, obtain even controlling for a series of demographic and socioeconomic background variables.     

Pharmacotherapy for obesity in menopausal women

Weight gain, during and after the menopause is common. Contributing factors include ethnicity, reduced physical activity, reduced lean mass, reduced resting metabolic rate and treatment with certain drugs, e.g. steroids, insulin, glitazones. Excess body weight increases the risk of medical conditions including type 2 diabetes, hypertension, osteoarthritis, certain cancers and is associated with increased mortality. This review examines pharmacological approaches to promote weight loss. Pharmacological therapy should be considered as an adjunct to diet and lifestyle changes. The licensed drugs orlistat, sibutramine and rimonabant are discussed. Obesity increases the risk of type 2 diabetes. Thus, the effects of metformin and exenatide are examined.     

Interval estimators for the population mean for skewed distributions with a small sample size

In finite population sampling, it has long been known that, for small sample sizes, when sampling from a skewed population, the usual frequentist intervals for the population mean cover the true value less often than their stated frequency of coverage. Recently, a non-informative Bayesian approach to some problems in finite population sampling has been developed, which is based on the 'Polya posterior'. For large sample sizes, these methods often closely mimic standard frequentist methods. In this paper, a modification of the 'Polya posterior', which employs the weighted Polya distribution, is shown to give interval estimators with improved coverage properties for problems with skewed populations and small sample sizes. This approach also yields improved tests for hypotheses about the mean of a skewed distribution.     

Peer-led interventions to reduce HIV risk of youth: A review

One approach in HIV prevention programming targeting youth is to use peer leaders in what is referred to as peer education programming. This paper critically reviews and synthesizes the results and lessons learned from 24 evaluated peer-led programs with an HIV/AIDS risk reduction component that target youth in the communities where they live and are delivered in low- and middle-income countries. Interventions were identified through a comprehensive search of the peer reviewed AIDS-related literature as well as publication lists of major organizations in the UN family that address HIV and AIDS. Our synthesis of study results finds that these programs have demonstrated success in effecting positive change in knowledge and condom use and have demonstrated some success in changing community attitudes and norms. Effects on other sexual behaviors and STI rates were equivocal. We include an overview of characteristics of successful programs, a review of program limitations, and recommendations for the development and implementation of successful community-based peer-led programs in low-income countries.     

Assessment of motion media on believability and credibility: An exploratory study

The radical shift by news audiences away from newspaper to motion media (video stories on TV, web, cell phones, handhelds) prompted the assessment of media modality (text, text + picture, video) and source (public relations, news, user-generated content [UGC]) effects on credibility and more importantly perceived veridicality, a perception of an object as being accurate and believable regardless of the source, as well as impact of messages. The findings revealed that motion media modality significantly enhances believability judgments and perceived veridicality, which is independent of source cue, in which news source garnered no greater credibility than PR or UGC source.     

Dividing women: the framing of trafficking for sexual exploitation in magazines

Each year thousands of women are trafficked for sexual exploitation. To understand how the mass media represent trafficking, a qualitative framing analysis of magazines, published from 2000 through to 2010, was conducted. Results showed magazines presented complementary frames of victimization and benevolence. Magazine articles shed light on trafficking, which operates in society’s shadows and is far removed from many people’s lives, but articles reinforce hierarchies and divisions: between women and men; among women; and among “good” prostitutes who deserve help and “bad” prostitutes who do not. Articles imply that the problem of trafficking is one of individual vulnerability, which can be remedied by charitable efforts, and ignore the larger cultural, political, economic, and educational systems of sex discrimination. Traffickers and men who buy sex were largely absent from magazine stories, and focus on the sale of sexual services, rather than the purchase, emphasized women’s role in the trafficking process while making men’s roles invisible. Because the mass media can shape public opinion and public policy, such incomplete reports may lead to ineffective policies.