Non-Invasive Measurements of Physical Maturity in Children

Abstract

Serial data for 268 normal children (144 boys, 124 girls) have been used to calculate predicted adult statures without using skeletal age. Present statures at an age have been used with these predicted values to obtain ratios that are significantly correlated (p <.05 or < .01) with accepted measures of physical maturity from 5 to 15 years in boys, and from 3 to 13 years in girls. Reference values for this ratio are provided. It is recommended that this non-invasive method of measuring maturity be used when irradiation cannot be justified or when the invasion of personal privacy is inappropriate.     

The influence of impact location and angle on the dynamic impact response of a Hybrid III headform

To properly assess sports helmet performance, it is important to select impact conditions that yield high peak linear or angular accelerations. This was done by measuring the kinematic response of a Hybrid III headform when impacted with a modified Wayne State University linear impactor with special consideration for impact locations and angles. The 20 impact conditions (five locations and four angles) were then compared to published thresholds to identify the conditions, which were linked to an increased risk of head injury. These conditions were the following: 1A (linear 121.3g; angular 3.84 krad s⁻²), 2A (linear 102.1g; angular 9.28 krad s⁻²), 2C (linear 94.4g; angular 8.67 krad s⁻²), 3A (linear 132.8g; angular 9.38 krad s⁻²), 4A (linear 92.8g; angular 11.49 krad s⁻²), 4D (linear 113.3g; angular 12.86 krad s⁻²), 5A (linear 116.9g; angular 9.01 krad s⁻²) and 5D (linear 87.5g; angular 8.81 krad s⁻²). The results presented in this study were specific to the test rig used as well as the tested conditions; however, it is believed that a test protocol using the above impact conditions could identify the ability of sports helmets to reduce risk of head injuries.     

Celebrity Endorsements and Their Potential to Motivate Young Voters

Although scholars have long indicated concern regarding disaffected young voters, the 2004 presidential election tallied record turnout among this age group. This study explored how and why celebrity-endorsed, get-out-the-vote campaigns may have helped to persuade young voters aged 18 to 24 to participate in an election campaign by examining campaign influence on individual decision-making factors. During the fall semester of 2004, a convenience sample of 305 college students from introductory general education classes completed surveys assessing their political efficacy, involvement, complacency, and apathy. Findings indicated that receptivity to celebrity spokespeople predicted lower levels of complacency and higher levels of self-efficacy. Complacency had independent effects on involvement and self-efficacy. The results therefore suggest that these campaigns can potentially influence positive change in political engagement of the younger citizenry.     

Socioeconomic status impacts genetic influences on the longitudinal dynamic relationship between temperament and general cognitive ability in childhood: The Louisville Twin Study

The current analysis investigates genetic and environmental influences on the bidirectional relationships between temperament and general cognitive ability (GCA). Measures of GCA and three temperament factors (persistence, approach, and reactivity) were collected from 486 children ages 4–9 years (80% white, 50% female) from the Louisville Twin Study from 1976 to 1998. The results indicated a bidirectional dynamic model of temperament influencing subsequent GCA and GCA influencing subsequent temperament. The dynamic relationship between temperament and GCA arose primarily from shared genetic variance, particularly in families with higher socioeconomic status, where input from temperament contributed on average 20% to genetic variance in GCA versus 0% in lower SES families.     

#SheBelieves: the use of Instagram to frame the US Women’s Soccer Team during #FIFAWWC

Abstract

The purpose of the study was to examine of the representation of women athletes during the 2015 FIFA Women’s World Cup. More specifically, we examined how individuals used various event-related hashtags (ie #SheBelieves and #FIFAWWC) on Instagram during the 2015 FIFA Women’s World Cup to frame identity, and challenge or reinforce gender stereotypes from the bottom-up. A content analysis of athlete photos containing #FIFAWWC (n = 706) and athlete photos containing #SheBelieves (n = 629) revealed that users primarily portrayed women athletes as athletically competent. Specifically, nearly 90% of Instagram posts containing either #FIFAWWC or #SheBelieves portrayed athletes in either athletic action or preparing for athletic action. These findings demonstrate that social media provide an opportunity to challenge gender stereotypes in women’s sports and thereby illustrate that social media users are willing to create their own frames around women athletes.     

Kissing in the Carnage: An Examination of Framing on Twitter During the Vancouver Riots

This study examines the frames found on Twitter during the Vancouver riots on June 15, 2011. A textual analysis was employed, and resulted in the identification of 5 frames: fandom, riot propagation, global perspectives, shame on Vancouver, and real fans vs. idiots. The identification of these frames illustrated Twitter's role as a source of news and information, and also an outlet for shaping public opinion and cultural perception. Twitter provided the opportunity to counter public perceptions of Canadian hockey fans and the rioters through displays of dissociation, embarrassment, remorse, and comparisons to substantial global events of political unrest.     

Creating an Innovative Interdisciplinary Graduate Certificate Program

In response to a growing movement within higher education to provide interdisciplinary educational programs, this study describes the creation of an interdisciplinary graduate certificate program in healthcare policy and management. Building on prior research, we surveyed healthcare executives to examine their perceptions about the need for such a program and the importance of core subject areas. Drawing on our findings as well as the literature on “interactional expertise” and “wicked problems,” we provide a detailed method for launching an interdisciplinary program. Our process may be useful in guiding other institutions interested in setting up new interdisciplinary programs of their own.