Proteomics of Carbon Fixation Energy Sources in Halothiobacillus neapolitanus

Through the use of proteomics, it was uncovered that the autotrophic, aerobic purple sulfur bacterium Halothiobacillus neapolitanus displays changes in cellular levels of portions of its carbon dioxide uptake and fixation mechanisms upon switch from bicarbonate to CO2(g) as carbon source. This includes an increase in level of a heterodimeric bicarbonate transporter along with a potential switch between form I and form II of RubisCO. Additional changes are seen in several sulfur oxidation pathways, which may indicate a link between sulfur oxidation pathways as an energy source and carbon uptake/fixation mechanisms

Effects of a classroom-based physical activity program on childrens physical activity levels

pre-printHigh levels of physical inactivity are evident among many American children. To address this problem, providing physical activity (PA) during the school day within the CSPAP framework, is one strategy to increase children's PA. Thus, the purpose of this study was to examine the effects of a classroom-based PA program on children's PA. Two hundred and ten students from one school participated in TAKE 10! for 12 weeks. All students wore pedometers and a sample of 64 students wore accelerometers for 4 days during week 1 (baseline), week 8 (midintervention), and week 12 (end-intervention). Data were analyzed using repeated-measures ANOVA. The results showed that students' daily in-school step counts increased by 672 steps from baseline to midintervention (P < .001). Students' moderate-to-vigorous intensity PA (MVPA) increased by approximately 2 minutes from baseline to end-intervention (P < .01). In conclusion, participating in TAKE 10! helps children strive toward the goal of recommended daily MVPA

The influence of a simulated 'pep talk' on athlete inspiration, situational motivation, and emotion

Journal ArticleCoaches routinely use pep talks to inspire and motivate athletes, but the efficacy of this strategy has not been empirically examined. Conceptually based on Thrash and Elliot's [3, 4] inspiration research this study explored the impact of a simulated pep talk on inspiration, inspiration to perform, situational autonomous motivation, and emotion. Collegiate football players (n = 151) were randomly assigned to a treatment (n = 74, viewed a movie clip of coach giving an inspirational speech) or control (n = 77, viewed a movie clip of a coach giving game instructions) group and completed assessments pre and post treatment. A one-way ANOVA revealed an overall significant group effect for the change scores, [F(6,134) = 6.53, p <.001]. The experimental group was more inspired by the movie clip [F(1,139) = 29.06, p < .001], more inspired to perform [F(1, 139) = 24.10, p =.000], and indicated greater emotional dominance [F(1,139) = 7.19, p = 008] than the control group. Motivation, pleasure, and arousal were not influenced by the movie clip

Influence of leader efficacy and emotional intelligence on personal caring in physical activity

Journal ArticleScholars in youth development, education, and sport are examining the formative contexts of classrooms, music halls, and playing fields to gain a better understanding of positive development in children. Of particular interest are the leaders in these contexts (e.g., teachers, conductors, and coaches) and their ability to nurture the social-emotional skills that provide the foundation for development across the lifespan (Elias, 2003; Kress, Norris, Schoenholz, Elias, & Seigle, 2004). Learning contexts that emphasize caring are fundamental to positive development because a caring and supportive environment positively influences children's social-emotional competencies, character development, and personal mastery (Elias, 2003; Kress et al., 2004; Noblit, 1993; Noblit, Rogers, & McCadden, 1995; Noddings, 1995, 2002; Tappan, 1998; Wentzel, 1997)

Youth perceptions of a caring climate, emotional regulation and psychological well-being

ManuscriptThe purpose of this study was to examine the meditational effect of perceived affective self-regulatory efficacy on the relationship between youth sport participants? perceived caring climate and their mental well-being. Three hundred and 95 participants (mean age = 11.80 ? 1.54) from a National Youth Sport Program were recruited for the study. Participants completed a battery of questionnaires including demographic information, the Caring Climate Scale, the Affective Self-Regulatory Efficacy measure, and measures of psychological well-being (i.e., depression, hope, sadness, and happiness). Results from the structural equation model analysis of the proposed mediational model revealed that both positive and negative affective self-regulatory efficacy mediated the relationship between the perceived caring climate and mental well-being. Findings from this study call attention to the importance of creating a caring climate in youth sport programs to foster positive mental well-being in young athletes via their affective self-regulatory efficacy

Qualitative analysis of a pediatric strength intervention on the developmental stepping movements of infants with Down syndrome

Journal ArticleThe purpose of this study was to describe the developmental stepping movements of 5 infants with Down syndrome who participated in a pediatric strength intervention. Pretest and posttest data were collected with the Hawaii Early Learning Profile Strands, Battelle Developmental Inventory, and specially designed gait analysis. An 8-week individualized pediatric strength intervention was implemented according to theoretical principles of progressive interactive facilitation (Cowden, in press). Posttest data and the Snyder-McLean (1987) intervention developmental quotient suggested an increase in the subjects' rates of motor development during intervention as compared to their lifetime rates prior to intervention. One subject showed increased rate and distance, 2 subjects acquired independent upright locomotion, and 1 subject established independent sitting movements and creeping patterns. One subject was unable to complete the study

Senior olympians' achievement goals and motivational responses

Journal ArticleThe purpose of this study was to examine the motivational perspectives of athletes participating in the Senior Olympic Games. One hundred thirty-seven senior athletes (54 males, 82 females, and 1 nonidentifier) completed measures of goal orientations, beliefs about the causes of success in sport, intrinsic motivation, and views about the purpose of sport. Multivariate analysis revealed a positive association between task orientation and intrinsic motivation, the belief that success in sport is achieved through hard work, and self-improvement-based purposes of sport. In contrast, ego orientation was associated with the belief that success in sport is achieved by those who are gifted with natural ability and who know how to maximize external and deceptive factors. Further, ego orientation was linked to the belief that the purpose of sport was for personal gain. The motivational implications of the present findings are discussed based on the tenets of goal perspective theor

Predicting the use of sexual initiation tactics in a sample of college women

Journal ArticleSignificant attention has been focused on women's initiation of sexual contact with men and the point at which this initiation becomes sexual aggression. The purpose of this study was to examine possible predictors of the use of three conceptually distinct sets of sexual initiation tactics: seduction, coercion, and force. Relationships between women's personal characteristics, future expectancies about sex and relationships, the ‘rehearsal behavior' of telephone calling patterns in adolescence, sexual self-esteem, past abuse, and past sexual abuse were related to measures of women's sexual initiation and aggression. Survey respondents were 272, mostly white women students with a mean age of 26 years. A complex relationship emerged between predictor and outcome variables. Social learning theory is utilized to interpret the findings and recommend future research directions

“Conversation” of Subjects, City and Tourism. Ropositions for Lovingness, Autopoiesis and the Reverse Side of Tourism

The text presents an experience report, with social actors of the third age, members of the Group Viver Bem, of the Serviço de Convivência e Fortalecimento de Vínculos do Centro de Referência de Assistência Social da cidade de Farroupilha/RS, who, through art workshops, they were invited to experience and produce narratives of place. This is a transdisciplinary study, from the perspective of ecosystem complexity. As a methodology, the research is based on the methodological strategy Cartography of Knowledge, proposed by Baptista (2014a), which seeks to break with the separation of subject and object in research, bringing differentiated proximity instruments for doing science. The combination of theoretical work and the various operational investigation procedures allows us to perceive some flags for the construction of lovingness and autopoiesis and what, in Amorcomtur!; we call’ the Reverse side of Tourism’, based on Baptista’s proposition, that is, Tourism guided by Ecosystem Responsibility and in line with the objectives of the 2030 Agenda. The results of the ongoing studies indicate that, in the Group Viver Bem, at that particular moment, the artistic production, entangled in a set of practices and social interactions, was necessary to change ways of living and interacting and this implied that the subjects (re)see, (re)organize, (re)build themselves, to (re)perceive in the relationships “between” the subjects with the city and tourism. It was also noticed that the “conversation” made possible the ‘recognition of the other as a legitimate other in coexistence’, enhancing the ethics of the relations and the ecosystem responsibility, expressed by the experiences, and transcribed in narratives.   Bilingual Publication: The original version in Portugues is available in the PDF file