scholarly journals Choose Health: Food, Fun, and Fitness Curriculum Promotes Positive Behaviors in Youth Compared to Control Period

2018 ◽  
Vol 50 (7) ◽  
pp. S153-S154 ◽  
Author(s):  
Wendy Wolfe ◽  
Jamie Dollahite
2018 ◽  
Vol 50 (9) ◽  
pp. 924-930 ◽  
Author(s):  
Wendy S. Wolfe ◽  
Michelle Scott-Pierce ◽  
Jamie Dollahite

1974 ◽  
Vol 75 (4) ◽  
pp. 669-682 ◽  
Author(s):  
K.-G. Thorngren ◽  
L. I. Hansson

ABSTRACT The growth stimulating effect of growth hormone was determined with tetracycline as intravital marker of the longitudinal bone growth of proximal tibia in female Sprague-Dawley rats hypophysectomized at 60 days of age. After a post-operative control period of 15 days growth hormone (NIH-GH-B16) was given daily for 5 or 10 days followed by a 10 day period after its withdrawal. L-thyroxine was given in association with the growth hormone administration to potentiate the growth stimulation. A linear log dose-response relation was found for the two administration models with a high precision. The thyroxine-treatment increased the sensitivity of the bioassay. An administration period of 5 days was found sufficient for the bioassay of growth hormone in thyroxine-treated hypophysectomized rats. Compared with the earlier bioassay methods for growth hormone, the present bioassay is more favourable when all the factors, such as precision, sensitivity, specificity, and administration period are considered.


Author(s):  
António Calheiros

Leadership has long been a topic of interest for both academics (Hiller, DeChurch, Murase, & Doty, 2011; Sanders & Davey, 2011) and practitioners (Bennis, 2007; George, 2003). Academics have tried to understand the concept and identify its consequences and determinants. Practitioners have focused their efforts in its training and development hoping to reap its promised benefits. Over the last decade, authentic leadership has emerged as the fashionable leadership theory. More than just promising impacts on performance and subordinates’ work satisfaction, authentic leadership addresses management’s long term demand for and ethic and moral commitment (Ghoshal, 2005; Rosenthal et al., 2007). Authentic leadership is “a process that draws from both positive psychological capacities and a highly developed organizational context, which results in both greater self-awareness and self-regulated positive behaviors on the part of leaders and associates, fostering positive self-development” (Luthans and Avolio, 2003). The components of authentic leadership’s self-regulated authentic positive behaviours are balanced (non-prejudice) processing, relational orientation and internalized moral perspetive. One key point of authentic leadership is the authenticity of leaders, which can be defined as “knowing, accepting, and remaining true to one’s self” (Avolio et al., 2004). Recent research (Ford & Harding, 2011) have argued that this demand for one’s true self privileges a collective (organizational) self over an individual self and thereby hampers subjectivity to both leaders and followers, and could lead to destructive dynamics within organizations. This paper discusses the seeming paradox of developing authenticity in leaders, (namely addressing the issues raised by Ford & Harding) and clarifies the aim of authentic leadership development. It also assesses the suitability of traditional leadership development methodologies in meeting the challenges posed by a process-based approach to leadership with a focus on individual and social identification.


2019 ◽  
Author(s):  
Megan Wales Patterson ◽  
Lilla Pivnick ◽  
Frank D Mann ◽  
Andrew D Grotzinger ◽  
Kathryn C Monahan ◽  
...  

Adolescents are more likely to take risks. Typically, research on adolescent risk-taking has focused on its negative health and societal consequences. However, some risk-taking behaviors might be positive, defined here as behavior that does not violate the rights of others and that might advance socially-valuable goals. Empirical work on positive risk-taking has been limited by measurement challenges. In this study, we elicited adolescents’ free responses (n = 75) about a time they took a risk. Based on thematic coding, we identified positive behaviors described as risks and selected items to form a self-report scale. The resulting positive risk-taking scale was quantitatively validated in a population-based sample of adolescent twins (n = 1249). Second, we evaluated associations between positive risk-taking, negative risk-taking, and potential personality and peer correlates using a genetically informed design. Sensation seeking predicted negative and positive risk-taking equally strongly, whereas extraversion differentiated forms of risk-taking. Additive genetic influences on personality accounted for the total heritability in positive risk-taking. Indirect pathways from personality through positive and negative peer environments were identified. These results provide promising evidence that personality factors of sensation seeking and extraversion can manifest as engagement in positive risks. Increased understanding of positive manifestations of adolescent risk-taking may yield targets for positive youth development strategies to bolster youth well-being.


Author(s):  
Gregory A. Barton

While a few positive stories on organic farming appeared in the 1970s most mainstream press coverage mocked or dismissed organic farmers and consumers. Nevertheless, the growing army of consumer shoppers at health food stores in the United States made the movement impossible to ignore. The Washington Post and other newspapers shifted from negative caricatures of organic farming to a supportive position, particularly after the USDA launched an organic certification scheme in the United States under the leadership of Robert Bergland. Certification schemes in Europe and other major markets followed, leading to initiatives by the United Nations for the harmonization of organic certification through multilateral agencies. As organic standards proliferated in the 1990s the United Nations stepped in to resolve the regulatory fragmentation creating a global market for organic goods.


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