264 research outputs found

    Multidisciplinary conception of child sports club

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    Práce řeší zapojení dětí do sportovních kroužků, individuální sportování a zájem dětí o různé pohybové aktivity. Mapuje konkrétní sportovní aktivity dětí v různých kroužcích, samostatné sportování ve volném čase a zjišťuje zájem dětí o různé sportovní aktivity. Zjišťuje nabídku dostupných sportovních aktivit (kroužky, sportovní oddíly, kluby apod.) v zájmové oblasti a porovnává ji se zájmem dětí. Stanovuje podmínky fungování ideálního sportovního kroužku a jeho náplň na základě zájmu dětí o konkrétní aktivity, v rámci experimentálního sportovního kroužku tyto aktivity uskutečňuje a ověřuje.Research of children's participation in sport clubs, individual sports and children's interest in various physical activities. The thesis maps the specific sport activities of children in various sport clubs, individual sport activities in their free time and interest of children in various sport activities. It determinates the range of available sport activities (hobby groups, sport teams, clubs, etc.) in the area of interest and it compares it with interest of children. It sets conditions for the functional, ideal sport club and it sets its content based on the interest of children in concrete activities, realizing these activities in experimental sport club and its verification.Katedra tělesné výchovyPedagogická fakultaFaculty of Educatio

    The euro and prices: changeover-related inflation and price convergence in the euro area

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    The purpose of the study is to examine the effects of the 'euro cash changeover' on consumer prices in the euro area. The report begins by describing price developments at the time of the introduction of euro notes and coins. The study also investigates the impact of price developments at the euro changeover on different households by socio-economic group. The third part of the report focuses on inflation perceptions and a fourth section explores the cross-border convergence of prices since the euro changeover. The following findings can be highlighted: (1) it appears that aggregate inflation rates were largely unaffected by the introduction of the euro; (2) overall, differences in inflation rates across different types of households are small; (3) inflation perceptions are mainly driven by lagged perceptions, inflation expectations and actual inflation while different individual inflation experiences also help to explain the 'jumps' in perception data; (4) price differentials have generally declined over time across European countries though there is no sizeable euro introduction convergence effect.The Euro and Prices: Changeover-related Inflation and Price Convergence in the Euro Area, euro changeover, inflation, perceptions, convergence, household-specific inflation, Sturm, Fritsche, Graff, Lamla, Lein, Nitsch, Liechti, Triet

    Bone morphogenetic protein-5 (BMP-5) promotes dendritic growth in cultured sympathetic neurons

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    BACKGROUND: BMP-5 is expressed in the nervous system throughout development and into adulthood. However its effects on neural tissues are not well defined. BMP-5 is a member of the 60A subgroup of BMPs, other members of which have been shown to stimulate dendritic growth in central and peripheral neurons. We therefore examined the possibility that BMP-5 similarly enhances dendritic growth in cultured sympathetic neurons. RESULTS: Sympathetic neurons cultured in the absence of serum or glial cells do not form dendrites; however, addition of BMP-5 causes these neurons to extend multiple dendritic processes, which is preceded by an increase in phosphorylation of the Smad-1 transcription factor. The dendrite-promoting activity of BMP-5 is significantly inhibited by the BMP antagonists noggin and follistatin and by a BMPR-IA-Fc chimeric protein. RT-PCR and immunocytochemical analyses indicate that BMP-5 mRNA and protein are expressed in the superior cervical ganglia (SCG) during times of initial growth and rapid expansion of the dendritic arbor. CONCLUSIONS: These data suggest a role for BMP-5 in regulating dendritic growth in sympathetic neurons. The signaling pathway that mediates the dendrite-promoting activity of BMP-5 may involve binding to BMPR-IA and activation of Smad-1, and relative levels of BMP antagonists such as noggin and follistatin may modulate BMP-5 signaling. Since BMP-5 is expressed at relatively high levels not only in the developing but also the adult nervous system, these findings suggest the possibility that BMP-5 regulates dendritic morphology not only in the developing, but also the adult nervous system

    Macrophage TNF-α mediates parathion-induced airway hyperreactivity in guinea pigs.

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    Organophosphorus pesticides (OPs) are implicated in human asthma. We previously demonstrated that, at concentrations that do not inhibit acetylcholinesterase activity, the OP parathion causes airway hyperreactivity in guinea pigs as a result of functional loss of inhibitory M2 muscarinic receptors on parasympathetic nerves. Because macrophages are associated with asthma, we investigated whether macrophages mediate parathion-induced M2 receptor dysfunction and airway hyperreactivity. Airway physiology was measured in guinea pigs 24 h after a subcutaneous injection of parathion. Pretreatment with liposome-encapsulated clodronate induced alveolar macrophage apoptosis and prevented parathion-induced airway hyperreactivity in response to electrical stimulation of the vagus nerves. As determined by qPCR, TNF-α and IL-1β mRNA levels were increased in alveolar macrophages isolated from parathion-treated guinea pigs. Parathion treatment of alveolar macrophages ex vivo did not significantly increase IL-1β and TNF-α mRNA but did significantly increase TNF-α protein release. Consistent with these data, pretreatment with the TNF-α inhibitor etanercept but not the IL-1β receptor inhibitor anakinra prevented parathion-induced airway hyperreactivity and protected M2 receptor function. These data suggest a novel mechanism of OP-induced airway hyperreactivity in which low-level parathion activates macrophages to release TNF-α-causing M2 receptor dysfunction and airway hyperreactivity. These observations have important implications regarding therapeutic approaches for treating respiratory disease associated with OP exposures

    Functional identification of an aggression locus in the mouse hypothalamus

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    Electrical stimulation of certain hypothalamic regions in cats and rodents can elicit attack behaviour, but the exact location of relevant cells within these regions, their requirement for naturally occurring aggression and their relationship to mating circuits have not been clear. Genetic methods for neural circuit manipulation in mice provide a potentially powerful approach to this problem, but brain-stimulation-evoked aggression has never been demonstrated in this species. Here we show that optogenetic, but not electrical, stimulation of neurons in the ventromedial hypothalamus, ventrolateral subdivision (VMHvl) causes male mice to attack both females and inanimate objects, as well as males. Pharmacogenetic silencing of VMHvl reversibly inhibits inter-male aggression. Immediate early gene analysis and single unit recordings from VMHvl during social interactions reveal overlapping but distinct neuronal subpopulations involved in fighting and mating. Neurons activated during attack are inhibited during mating, suggesting a potential neural substrate for competition between these opponent social behaviours

    Spatiotemporal dynamics of the postnatal developing primate brain transcriptome.

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    Developmental changes in the temporal and spatial regulation of gene expression drive the emergence of normal mature brain function, while disruptions in these processes underlie many neurodevelopmental abnormalities. To solidify our foundational knowledge of such changes in a primate brain with an extended period of postnatal maturation like in human, we investigated the whole-genome transcriptional profiles of rhesus monkey brains from birth to adulthood. We found that gene expression dynamics are largest from birth through infancy, after which gene expression profiles transition to a relatively stable state by young adulthood. Biological pathway enrichment analysis revealed that genes more highly expressed at birth are associated with cell adhesion and neuron differentiation, while genes more highly expressed in juveniles and adults are associated with cell death. Neocortex showed significantly greater differential expression over time than subcortical structures, and this trend likely reflects the protracted postnatal development of the cortex. Using network analysis, we identified 27 co-expression modules containing genes with highly correlated expression patterns that are associated with specific brain regions, ages or both. In particular, one module with high expression in neonatal cortex and striatum that decreases during infancy and juvenile development was significantly enriched for autism spectrum disorder (ASD)-related genes. This network was enriched for genes associated with axon guidance and interneuron differentiation, consistent with a disruption in the formation of functional cortical circuitry in ASD

    Cell type ontologies of the Human Cell Atlas

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    Massive single-cell profiling efforts have accelerated our discovery of the cellular composition of the human body while at the same time raising the need to formalize this new knowledge. Here, we discuss current efforts to harmonize and integrate different sources of annotations of cell types and states into a reference cell ontology. We illustrate with examples how a unified ontology can consolidate and advance our understanding of cell types across scientific communities and biological domains

    Part 2: Preparing Entry-Level Occupational and Physical Therapy Students to Promote Healthy Lifestyles Emphasizing Healthy Eating with Individuals with Disabilities

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    Rehabilitation professionals including occupational therapists (OT) and physical therapists (PT) are increasingly called upon to incorporate health promotion of lifestyle behaviors including physical activity and healthy eating into routine clinical care. While OTs and PTs may be comfortable promoting activity-related behaviors, many are less comfortable with nutrition behaviors. To address entry-level OT and PT students’ perceived discomfort with discussing diet-related behaviors, faculty developed a healthy eating module for students to use during a community-based service learning program. The purpose of this paper is to describe the formative evaluation process of developing the healthy eating module, and to discuss results of a pilot trial of this module. The formative assessment of the healthy eating module consisted of four steps: focus groups with students, key informant interviews with community partners, expert panel round table, and expert panel review of materials. Students (n=117) completed questionnaires at the end of the service learning program to assess how much they used the new resources, and how useful they found the resources. The final healthy eating module consisted of an on-line training session and a healthy eating toolkit, including resources for assessments, treatment activities and additional nutrition information. Mann-Whitney U tests indicated that students who reported high use of materials found the resources significantly more helpful than those students who reported low use (
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