PURPOSE This study explored the relationship between children's basic psychological needs satisfaction at recess, level of recess physical activity motivation (RPAM), and recess physical activity (RPA). METHOD Fifth-grade children (N = 203; 50.2% boys; 71.7% healthy-weight) completed measures of age, gender, basic psychological need satisfaction, and level of self-determined motivation for RP...

Recent improvements in the methods for biosynthesis and isolation of S-adenosylmethionine (1, 2) have stimulated extensive experimentation with this compound. Detailed information upon its stability under various conditions is a prerequisite to microbiological, nutritional, and enzymatic research involving this substance. Not only is it desirable to have an estimate of the residual amount of X-...

Recent improvements in the methods for biosynthesis and isolation of S-adenosylmethionine (1, 2) have stimulated extensive experimentation with this compound. Detailed information upon its stability under various conditions is a prerequisite to microbiological, nutritional, and enzymatic research involving this substance. Not only is it desirable to have an estimate of the residual amount of X-...

This study used a person-centered approach to identify naturally occurring combinations of intrinsic and extrinsic academic motives and their correlates. 1061 high school students completed measures of academic motivation, performance, and school engagement. Cluster analysis revealed four motivational profiles characterized by high levels of both intrinsic and extrinsic motivations (high quanti...

In humans and animals, anabolic-androgenic steroids (AAS) increase aggression, but the underlying behavioral mechanisms are unclear. AAS may increase the motivation to fight. Alternatively, AAS may increase impulsive behavior, consistent with the popular image of 'roid rage. To test this, adolescent male rats were treated chronically with testosterone (7.5mg/kg) or vehicle and tested for aggres...

Let S be a subset of Fq, the field of q elements and h ∈ Fq[x] a polynomial of degree d > 1 with no roots in S. Consider the group generated by the image of {x − s | s ∈ S} in the group of units of the ring Fq[x]/(h). In this paper we present a number of lower bounds for the size of this group. Our main motivation is an application to the recent polynomial time primality testing algorithm [AKS]...

the purpose of this study was to investigate the achievement motivation of faculty members according to their job satisfaction. a descriptive correlational design was employed for the research with data collected using questionnaire. the statistical population of the study included faculty members of university college of agriculture and natural resources, university of tehran from among whom a...

Let S be a subset of Fq, the field of q elements and h ∈ Fq[x] a polynomial of degree d > 1 with no roots in S. Consider the group generated by the image of {x − s | s ∈ S} in the group of units of the ring Fq[x]/(h). In this paper we present a number of lower bounds for the size of this group. Our main motivation is an application to the recent polynomial time primality testing algorithm [AKS]...