Search results for "APT"
showing 10 items of 5479 documents
Barriers Perceived by Teachers at Work, Coping Strategies, Self-efficacy and Burnout
2010
This study examines the relationships among stressors, coping strategies, self-efficacy and burnout in a sample of 724 Spanish primary and secondary teachers. We understood stressors as barriers perceived by teachers that interfere with their work meeting learning objectives and which cause them stress and burnout. An analysis of teacher responses using hierarchical regression revealed that pedagogical barriers had significant positive effects on the burnout dimensions. Furthermore, the results show not only the moderator role played by coping strategies in the pedagogical barriers- burnout dimensions relationship, but also the association between self-efficacy and the coping strategies use…
Genome-wide association data provide further support for an association between 5-HTTLPR and major depressive disorder.
2013
Abstract Background Dysfunctions of serotonergic neurotransmission are supposed to be involved in the pathogenesis of psychiatric disorders such as major depressive disorder (MDD). The concentration of serotonin (5-hydroxytryptamine, 5-HT) in the synaptic cleft is essentially regulated by the 5-HT transporter (5-HTT). A length polymorphism repeat in the 5-HTT promoter region, termed 5-HTTLPR, has been commonly investigated for an association with psychiatric disorders. Methods Genotyping of the 5-HTTLPR is time-consuming and technically challenging. Recently, a two-SNP haplotype was identified that tags the 5-HTTLPR at r 2 =0.775. This allows extraction of 5-HTTLPR genotype information from…
Personality â a resource or risk for successful development
2009
Personality as a resource or risk for development was discussed in the light of the results of the ongoing Finnish Jyväskylä Longitudinal Study of Personality and Social Development (FJYLS) which the author has conducted since 1968 when the participants (N = 369, b. 1959) were 8 years of age. A general hypothesis presented within a two-dimensional framework of self-control and activity was that the child's high self-control of emotions and behavior would be associated with adaptive behavior in adulthood. The results have provided evidence in support for and limitations to the hypothesis. High self-control was a resource and low self-control was a risk for development, but there were gender …
"I met this wife of mine and things got onto a better track" turning points in risk development.
2002
In this study, qualitative and quantitative approaches were combined to study the mechanisms involved in turning-point experiences among individuals who had been exposed to several risk factors in childhood and adolescence. The study was part of the Jyvaskyla Longitudinal Study of Personality and Social Development, in which the lives of the participants (196 boys and 173 girls) have been followed from age 8 to age 36. The data concerning turning points was collected by semi-structured interview when the participants were 36 years old. Participants were classified into six developmental trajectories according to risk factors at ages 8-14 and problems of social functioning at age 36. The res…
Haptic information differentially interferes with visual analysis in reaching-grasping control and in perceptual processes.
1998
We used an interference paradigm in order to study integration between haptic and visual information in motor control and in perceptual analysis. Subjects either reached and grasped a visually presented sphere or matched its size with their left hand while manipulating with their right hand another sphere whose size could be smaller or greater. In four experiments haptic analysis of the manipulated sphere could be either automatically incorporated with or explicitly dissociated from visual analysis. In a fifth experiment reaching-grasping and matching were executed with the right hand, whereas manipulation was executed with the left hand. Manipulation with the right hand influenced finger s…
Contribution of the tendinous tissue to force enhancement during stretch–shortening cycle exercise depends on the prestretch and concentric phase int…
2005
When the prestretch intensity and concentric work are increased in stretch-shortening cycle (SSC) exercises, the utilization of the elastic energy can increase during the concentric phase. In order to further understand this process during SSC exercises, the interaction between fascicle-tendinous tissues (TT) of the vastus lateralis (VL) muscle was examined under different prestretch and rebound intensity drop jumps. Ten male subjects participated in the study. Direct VL fascicle lengths (N = 10) and in vivo patellar tendon force (N = 1) were measured together with the electromyographic (EMG) activity of VL during the trials. With increasing drop height but the same rebound height condition…
Kinetic and electromyographic analysis of single repetition constant and variable resistance leg press actions
2010
During a multi-joint leg press action, maximal force capabilities increase with increasing knee angle. In typical resistance exercises, constant resistance is used, which does not stress the neuromuscular system at large knee angles. The purpose of this study was to compare constant and variable resistance settings using a range of contraction loads and velocities. Nine healthy, untrained males performed single contractions using four different resistance settings (constant resistance, two settings that increased resistance at large knee angles and one setting that reduced resistance at large knee angles). Single contractions using 40%, 60%, and 80% of one repetition maximum with both stead…
Meaning-making as a mediator of anxiety and depression reduction during cognitive behavioral therapy intervention in participants with adjustment dis…
2021
There is a consensus among researchers about the link between low meaning in life and anxiety and depressive symptoms. One unanswered question is whether meaning-making is a mediator of the change in anxiety and depression symptoms in participants with adjustment disorders during cognitive behavioural therapy (CBT) treatment. The aims of this study were (a) to analyse whether there was meaning-making during the application of the CBT, (b) to analyse whether meaning-making was a mediator of anxiety psychopathology and (c) to analyse whether meaning-making was a mediator of depressive symptoms. The sample was composed of 115 patients who satisfied the full Diagnostic and Statistical Manual of…
Catecholamine release in human skin--a microdialysis study.
2003
Dermal microdialysis might be a promising tool to investigate properties of sympathetic neurons in the skin as investigation of peripheral noradrenergic neurons in humans usually relies on highly variable vasoconstrictor reflexes or on indirect measurements like skin temperature recordings. To evaluate this technique, 21 experiments were performed in 15 healthy subjects with four intracutaneous microdialysis fibers (diameter, 200 microm; cutoff, 5 kDa) at hands or feet. After 60 min, saline perfusion tyramine at concentrations of 0.195 to 200 microg/ml was applied for 15 min followed by a 15-min saline perfusion again. Catecholamine concentrations were detected through high-performance liqu…
Flexible multibody simulation approach in the analysis of tibial strain during walking.
2007
Strains within the bone tissue play a major role in bone (re)modeling. These small strains can be assessed using experimental strain gage measurements, which are challenging and invasive. Further, the strain measurements are, in practise, limited to certain regions of superficial bones only, such as the anterior surface of the tibia. In this study, tibial strains occurring during walking were estimated using a numerical approach based on flexible multibody dynamics. In the introduced approach, a lower body musculoskeletal model was developed by employing motion capture data obtained from walking at a constant velocity. The motion capture data were used in inverse dynamics simulation to teac…