5‐Month‐Olds’ Categorization of Novel Objects: Task and Measure Dependence

To examine key parameters of the initial conditions in early category learning, two studies compared 5‐month‐olds’ object categorization between tasks involving previously unseen novel objects, and between measures within tasks. Infants in Experiment 1 participated in a visual familiarization–novelty preference (VFNP) task with two‐dimensional (2D) stimulus images. Infants provided no evidence of categorization by either their looking or their examining even though infants in previous research systematically categorized the same objects by examining when they could handle them directly. Infants in Experiment 2 participated in a VFNP task with 3D stimulus objects that allowed visual examination of objects’ 3D instantiation while denying manual contact with the objects. Under these conditions, infants demonstrated categorization by examining but not by looking. Focused examination appears to be a key component of young infants’ ability to form category representations of novel objects, and 3D instantiation appears to better engage such examining.     

‘Cruel necessity’: capitalism,the discourse of sympathy,and the problem of the slave trade in the age of human rights

How did Frenchmen profiting from colonial slavery respond to the emergent discourse of human rights? Le commerce de l'Amérique par Marseille (1764), a trade manual by Auguste Chambon, provides exceptional insight into the moral imagination of eighteenth-century commercial capitalists. Chambon encouraged the French to pursue slaving more aggressively. Yet rather than deny the problem of slavery, he questioned openly whether slavery violated morality, religion, and natural rights, responding to Montesquieu, Rousseau and Voltaire from a rare Catholic-inspired perspective. Lamenting slavery as a ‘cruel necessity’ for France, Chambon enabled merchants to represent themselves as sympathetic and patriotic while preserving profits.     

Electronic Access to Agricultural Journals: An Agronomy Case Study

Abstract

This study examines the electronic availability of agronomy journals at eight ARL (Association of Research Libraries) member institutions with doctoral programs in agronomy. Of the forty-seven journals examined, twelve were not available electronically at any of the institutions. On average, institutions provided access to thirty of the titles, with twenty-seven of these being unembargoed. In terms of depth of access, much of the older literature which is important to the agricultural sciences was not available electronically. Librarians can use these results to communicate to researchers the importance of not relying solely on electronically available research materials.     

Correlates of load carriage and obstacle course performance among women

To examine correlates of the speed at which female soldiers carrying loads could cover 3.2 km on foot and traverse an obstacle course, 12 volunteers (mean +/- SD: 25.3 +/- 6 years, 166 +/- 7 cm, 61.3 +/- 7 kg) were timed over 3.2 km while carrying loads of 14, 27, and 41 kg, and while traversing an obstacle course with the two lighter loads. Pearson correlations showed that absolute VO_[2 max] and 3.2 km run time without a load were the best predictors of 3.2 km load carriage time for all loads. Also, larger subjects with greater muscle mass were able to carry the heaviest load faster than smaller, less muscular subjects, likely because the 41 kg load represented a smaller percentage of the former's bodyweight. Maximum number of sit-ups and push-ups, composite score of the Army Physical Fitness Test as well as body height were positively correlated with the speed at which some course segments were traversed.     

Differences in African American and White college students' drinking behaviors: consequences, harm reduction strategies, and health information sources

The authors explored the differences between African American and White college students' drinking behaviors and their attitudes toward consequences, harm-reduction strategies, and health information sources. They collected data from a randomly selected sample of 1,110 students in a large public university to examine the effects of a high-risk drinking prevention intervention. In the current analysis, they compared African American and White students on indicators of high-risk drinking, drinking consequences, harm-reduction strategies, the sources that students typically used for health information, and the believability of those sources. The African American students scored lower on drinking measures than the White students did, reported fewer negative consequences, and more regularly employed drinking-reduction strategies, with one exception--choosing a designated driver. Both African and White respondents reported that their parents were their most frequent and usual sources of health-related information and said that parents and health professionals were the most credible sources.     

Visual Access and Attention in Two‐Year‐Olds' Event Reasoning and Object Search

Several recent studies have revealed substantial limitations in 2‐year‐olds' ability to search accurately for objects that have undergone unseen movement, even along highly constrained paths. In many of these studies, children observed a ball as it rolled down a track and behind an occluding panel that contained 4 doors. The track had a barrier that was partly visible and could be placed in locations corresponding to the doors. When the ball came to a rest against the barrier and behind the occluder, the child's task was to find the ball by opening the correct door. The search accuracy of 2‐year‐olds has not differed from chance across several variations of this task. This research was conducted to identify the source of 2‐year‐olds' limitation in this domain. Children were granted a full view of the event before the ball was occluded with a door panel. Children's performance was better under this condition, but was still not systematically accurate unless their gaze remained locked onto the correct location. Two‐year‐olds' weak performance in these search tasks appears to be more a consequence of limitations in spatial integration than in their representation of unseen movement.     

Family Development Cycle,Social Class,and Inequality in Rwanda1

Abstract The relative importance of social class differences (social differentiation) and stages of the family development cycle (demographic differentiation) on income inequalities in rural Rwanda are discussed and compared using survey data from 1,019 households. Both forms of differentiation are conceptualized as dynamic processes that intersect through their mutual inclusion of landholding—land being fundamental to our understanding of social class in the Third World and likewise closely tied to the timing of the developmental stages of the family cycle. Findings demonstrate that both forms of differentiation are vitally important, in roughly equal proportions, to household income generation in Rwanda. Emphasis is placed on the direct effects of the social class variables and on the indirect effects of the demographic differentiation process. The importance of the impact of contextual variables, such as land scarcity and the absence of alternative nonfarm employment, on income inequality are assessed.     

Bayesian spatial quantile regression for areal count data,with application on substitute care placements in Texas

Quantile regression (QR) allows one to model the effect of covariates across the entire response distribution, rather than only at the mean, but QR methods have been almost exclusively applied to continuous response variables and without considering spatial effects. Of the few studies that have performed QR on count data, none have included random spatial effects, which is an integral facet of the Bayesian spatial QR model for areal counts that we propose. Additionally, we introduce a simplifying alternative to the response variable transformation currently employed in the QR for counts literature. The efficacy of the proposed model is demonstrated via simulation study and on a real data application from the Texas Department of Family and Protective Services (TDFPS). Our model outperforms a comparable non-spatial model in both instances, as evidenced by the deviance information criterion (DIC) and coverage probabilities. With the TDFPS data, we identify one of four covariates, along with the intercept, as having a nonconstant effect across the response distribution.     

Teaching Clinical Social Work Skills Entirely Online: A Case Example

While numerous disciplines have eagerly embraced innovative educational technology, many social work educators have not been among early adopters. Social work's focus on the human connection and hands‐on practice skills can seem antithetical to technology‐mediated education. Nevertheless, social work programs are implementing distance learning and Internet‐mediated courses, and some schools are offering entire social work courses online. Leading the way in this regard is the Florida State University College of Social Work, which has developed and implemented the first CSWE‐accredited, entirely online Master of Social Work program. The purpose of this paper is to describe the development, design, and implementation of one skills‐based clinical course in this program, with the goal of sharing information in a way that will further the discussion of the risks and benefits of online education as well as provide guidance for educators who may be interested in developing a skills‐based online course in the future.