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.     

How Much More XXX is Generation X Consuming? Evidence of Changing Attitudes and Behaviors Related to Pornography Since 1973

We use data from the General Social Survey (GSS) over a 40-year period (1973–2012) to evaluate changes in attitudes about pornography and pornography consumption among American young adults. One of the major challenges in making comparisons across birth generations is separating the effect of birth cohort from age and period effects. We use an intrinsic estimator to separately identify the effects of age, birth cohort, and time period using 40 years of repeated cross-section data. We find that, relative to the general population, young people's beliefs about whether pornography should be illegal have stayed relatively constant over this 40-year period and, if anything, have slightly increased. We also find that pornography consumption has been increasing across birth generations, though this increase has been smaller than would be inferred based on differences across generations at a single point in time, due to a strong age component in consumption patterns.     

Evaluating Potential Distribution of High‐Risk Aquatic Invasive Species in the Water Garden and Aquarium Trade at a Global Scale Based on Current Established Populations

Aquatic non‐native invasive species are commonly traded in the worldwide water garden and aquarium markets, and some of these species pose major threats to the economy, the environment, and human health. Understanding the potential suitable habitat for these species at a global scale and at regional scales can inform risk assessments and predict future potential establishment. Typically, global habitat suitability models are fit for freshwater species with only climate variables, which provides little information about suitable terrestrial conditions for aquatic species. Remotely sensed data including topography and land cover data have the potential to improve our understanding of suitable habitat for aquatic species. In this study, we fit species distribution models using five different model algorithms for three non‐native aquatic invasive species with bioclimatic, topographic, and remotely sensed covariates to evaluate potential suitable habitat beyond simple climate matches. The species examined included a frog (Xenopus laevis), toad (Bombina orientalis), and snail (Pomacea spp.). Using a unique modeling approach for each species including background point selection based on known established populations resulted in robust ensemble habitat suitability models. All models for all species had test area under the receiver operating characteristic curve values greater than 0.70 and percent correctly classified values greater than 0.65. Importantly, we employed multivariate environmental similarity surface maps to evaluate potential extrapolation beyond observed conditions when applying models globally. These global models provide necessary forecasts of where these aquatic invasive species have the potential for establishment outside their native range, a key component in risk analyses.     

Is that all there is? The concept of care and the dialectic of critique

Recognition of the usefulness of critical social analysis for gerontology has been increasing just as a range of new problems, ranging from globalization to the anti-aging movement, are posing fresh questions about ideology, legitimation and inequality for the study of aging. Such problems and questions represent the negative moment of critique in the theory–practice dialectic. As is generally true of critical theory, in critical gerontology it is rare to find research that reflects a positive movement toward emancipatory change. Yet gerontology is one of the fields that offers special opportunities for critiquing the status quo of aging and elders in society, envisioning new possibilities for aging and developing practices that produce positive change. This paper describes the movement of our own thinking and work, away from a primary focus on analysis and critique and toward an embrace of the possibilities of generating and sustaining change in organizational care settings. We argue that principles of critical developmental and social theory can be used to reframe the concept of care, and we describe briefly how the methodology of action research can be applied in efforts to create new opportunities and possibilities in the everyday experience of elders in long-term care. In our work, we are learning how a constructive theory–practice dialectic can be initiated when critical principles are applied to a practical and urgent domain — the domain of interpersonal care within long-term care institutions for elders.     

The Effects of Religious Fundamentalism and Religiosity on Preference for Traditional Family Norms*

This study examines the effects of religion on preference for a patriarchal family, one in which the husband makes decisions while the wife is subservient to him. The effects of both religious fundamentalism and personal religiosity are considered using a survey of adults in a Southwestern city. The analysis reveals a strong positive direct effect of adherence to a fundamentalist doctrine on support for the patriarchal family, but no direct effect of personal religiosity. An interaction effect of these two variables, reported in some other studies of the effect of religion on other family issues, is not found. The effect of religious fundamentalism is equal in magnitude to the effect of age, and greater than the effects of education, gender, family income, head of household occupational prestige, subjective class identification, race and rural background. With the exceptions of age and gender, religious fundamentalism serves as a crucial intervening variable in the relationships between these variables and endorsement of patriarchal norms in the husband-wife relationship.     

Nonverbal exchange: Past,present, and future

This paper provides a broad review and evaluation of the research on nonverbal exchange. The development of theoretical approaches to this research is traced over time and discussed. Relative strengths and weaknesses of past and present models are analyzed. Finally, specific recommendations are made for future research that will, we hope, extend our understanding of nonverbal exchange and its basic role in social interaction.     

Attitudes of welfare recipients toward marriage and childbearing

The 1996 Personal Responsibility and Work Opportunities Reconciliation Act (PRWORA) put the need for attitudinal change at the center of efforts to help welfare recipients become economically independent, avoid out-of-wedlock childbearing, and embrace marriage. In this paper, we focus specifically on attitudes, analyzing both differences in values and attitudes between welfare recipients and other women on the cusp of reform, as well as the effects of TANF reforms in two states on the attitudes and behaviors of women subject to the reforms. National data reveal few differences in values and attitudes between welfare recipients and other women once background characteristics are held constant. A majority of both groups believes that prospective parents should marry, but single parents can raise a child as well as married parents. Personal aspirations for marriage and further childbearing also are fairly similar. These similarities may be one reason that the literature has shown TANF to have limited effects on marriage and childbearing. A second set of analyses investigates the degree to which welfare recipients in Delaware and Indiana report that reforms affected their aspirations for marriage and childbearing. Self-reported impacts are greater for fertility than marriage attitudes. Even among those who report their attitudes were affected by reform, recipients appear to have difficulty acting on their marital and childbearing desires, dampening any effects on behavior. These findings reinforce the current sense among researchers and policy makers that more direct reforms are needed to have a substantial effect on marriage and out-of-wedlock childbearing.