Validation of the Microsoft Kinect® camera system for measurement of lower extremity jump landing and squatting kinematics

Cost effective, quantifiable assessment of lower extremity movement represents potential improvement over standard tools for evaluation of injury risk. Ten healthy participants completed three trials of a drop jump, overhead squat, and single leg squat task. Peak hip and knee kinematics were assessed using an 8 camera BTS Smart 7000DX motion analysis system and the Microsoft Kinect® camera system. The agreement and consistency between both uncorrected and correct Kinect kinematic variables and the BTS camera system were assessed using interclass correlations coefficients. Peak sagittal plane kinematics measured using the Microsoft Kinect® camera system explained a significant amount of variance [Range_hip = 43.5–62.8%; Range_knee = 67.5–89.6%] in peak kinematics measured using the BTS camera system. Across tasks, peak knee flexion angle and peak hip flexion were found to be consistent and in agreement when the Microsoft Kinect® camera system was directly compared to the BTS camera system but these values were improved following application of a corrective factor. The Microsoft Kinect® may not be an appropriate surrogate for traditional motion analysis technology, but it may have potential applications as a real-time feedback tool in pathological or high injury risk populations.     

News Habits Among Adolescents: The Influence of Family Communication on Adolescents’ News Media Use—Evidence From a Three-Wave Panel Study

Keeping up with what’s going on in the world of politics and current affairs through various news media is commonly seen as important for civic engagement and informed citizenship. Today, however, citizens face more opportunities than ever to select media content according to their personal preferences and interests—leading to what previous research has identified as a polarization between news-seekers and news-avoiders. Given heightened concerns regarding growing shares of news-avoiders in particular, this study analyzes the development, stability, and family influences on Swedish adolescents’ news habits over time. The findings, based on panel survey data among adolescents and their parents, show that (a) news habits are fairly stable at the individual level, (b) parents’ own news consumption is the most consistent predictor of adolescents’ development of news habits, and (c) these family effects are distinct from adolescents’ personal motivations for seeking out news.     

Aspiring Teachers and Urban Education Programs

The Urban Review - Research stresses a need for more contextually nuanced urban teacher preparation programs that explore racially oppressive structures in society. This article presents a case...     

Religious discrimination discourse in the mono-cultural school: the case of Poland

The article forms an analysis of the religious discrimination discourse in Polish public schools, with special attention paid to the culturally specific, Polish understanding of the notion of religious discrimination. The introductory part presents the concept of religious discrimination as present in anti-discriminatory policies. The following part outlines the Polish system of religious education and its relation to the religious discrimination. Studies on religious discrimination in Poland are presented and discussed. Important context is supplied by a presentation of two recent cases of religious discrimination in Polish public schools, and the actions undertaken by the Freedom from Religion Foundation. Authors of the article point out the important influence of cultural context on the perception of religious discrimination. The attention is drawn to the seemingly homogenous environment of the Polish school and of the discriminative discourse used in political and social debates. The analysis shows that the presence of religion as a subject in Polish schools remains a cause of conflict between the religious and atheist citizens, a conflict in which concepts of religious discrimination and religious freedom are used as arguments by both sides.     

A Methylome‐Wide Association Study of Trajectories of Oppositional Defiant Behaviors and Biological Overlap With Attention Deficit Hyperactivity Disorder

In 671 mother–child (49% male) pairs from an epidemiological birth cohort, we investigated (a) prospective associations between DNA methylation (at birth) and trajectories (ages 7–13) of oppositional defiant disorder (ODD), and the ODD subdimensions of irritable and headstrong; (b) common biological pathways, indexed by DNA methylation, between ODD trajectories and attention deficit hyperactivity disorder (ADHD); (c) genetic influence on DNA methylation; and (d) prenatal risk exposure associations. Methylome‐wide significant associations were identified for the ODD and headstrong, but not for irritable. Overlap analysis indicated biological correlates between ODD, headstrong, and ADHD. DNA methylation in ODD and headstrong was (to a degree) genetically influenced. DNA methylation associated with prenatal risk exposures of maternal anxiety (headstrong) and cigarette smoking (ODD and headstrong).     

Does gender matter in computer ethics?

Computer ethics is a relatively young discipline,hence it needs time both for reflection and forexploring alternative ethical standpoints in buildingup its own theoretical framework. Feminist ethics isoffered as one such alternative particularly to informissues of equality and power. We argue that feministethics is not narrowly confined to women's issues but is an approach with wider egalitarianapplications. The rise of feminist ethics in relationto feminist theory in general is described and withinthat the work of Gilligan and others on an ethic of care. We argue for the need to connect theory toempirical evidence. Empirical studies of gender andbusiness and computer ethics are reviewed. We noteconcerns with surveying a student audience, the issueof how far questionnaires and interviews can get tothe heart of ethical beliefs and problems ofperforming statistical analyses of quantitative data.Although we recognize them, our own small surveycannot avoid all these problems. Nevertheless byrefining our scenarios we are able to offer analternative reading of a hacking problem in terms ofan ethic of care thereby pointing a way forward forfuture research in computer ethics inspired byfeminist theory.     

Impact of Contact With Grandparents on Children's and Adolescents’ Views on the Elderly

Stereotypes, prejudice, and discrimination against the elderly (ageism) may manifest themselves in children at an early age. However, the factors influencing this phenomenon are not well known. Using both explicit and open-ended questions, this study analyzed the influence of personal and familial parameters on the views of 1,151 seven- to sixteen-year-old Belgian children and adolescents on the elderly. Four factors were found to affect these views: gender (girls had slightly more positive views than boys), age (ageism was lowest in 10- to 12-year-old, reminiscent of other forms of stereotypes and cognitive developmental theories), grandparents’ health, and most importantly, quality of contact with grandparents (very good and good contacts correlated with more favorable feelings toward the elderly, especially in children with frequent contacts).