2,293 research outputs found
Spatial data science
The field of data science has had a significant impact in both academia and industry, and with good reason [...]This research was partially funded by the Portuguese Foundation for Science and Technology (FCT),under projects IPSTERS (DSAIPA/AI/0100/2018), and foRESTER (PCIF/SSI/0102/2017)
Integrating Positive Youth Development within Coach Education for Youth Sport Coaches
info:eu-repo/semantics/publishedVersio
Youth sport coaches’ role in facilitating positive youth development in Portuguese field hockey
Researchers have examined youth sport coaches’ role in facilitating positive youth
development (PYD). This past research demonstrates that when coaches use an intentional
approach to development, they can play an important part in helping young people to reach
adulthood with the necessary competencies to face the social challenges ahead. However,
studies within the area of PYD through sport have predominantly emanated from Englishspeaking
countries and there remains a need to better understand coaches’ views on PYD
within different countries’ sport systems. The purpose of this study was to examine
Portuguese coaches’ perspectives on their role in facilitating PYD in youth field hockey.
The participants were 11 youth field hockey coaches (2 females and 9 males) who coached
athletes between 6 and 18 years of age. Findings showed how the coaches believed PYD
could be fostered as they discussed several PYD-related concepts (e.g. life skills) they
deemed were being developed in field hockey. However, creating enjoyable environments
and talking about life skills with players were the only explicit initiatives discussed by the
coaches with the intent of fostering PYD. Coach education was perceived by half the
sample as an important learning situation to gain competencies to facilitate PYD, while the
other half emphasised that coach education courses were lacking in material associated with
this topic. Those who saw value in coach education presented a narrow view of PYD as
being solely associated with the psychological aspects of coaching. Moving forward, coach
education courses should first be designed to have coaches understand the full spectrum of
the concept of PYD and be framed as suitable learning environments where coaches can
learn how to foster PYD.info:eu-repo/semantics/publishedVersio
Analyzing continuous coach education courses in Portugal: Implications for youth development
Continuous coach education courses (CCEC) are considered a crucial vehicle for exposing coaches to topics (e.g., nutrition, mental health, positive youth development) not addressed in their initial coach training. CCEC can help coaches develop well-rounded coaching practices based on youth's physical, social, emotional, and psychological needs. The purpose of the study was to analyze the distribution of CCEC offered in Portugal between 2014 and 2020. Descriptive and inferential statistics were used to analyze (a) the number of CCEC offered; (b) hours devoted to each topic; (c) the types of organizations who delivered CCEC; (e) the format of CCEC (i.e., online or in-person); (f) the geographical distribution of CCEC throughout Portugal; (g) the number of coach participants per topic. The results indicate that courses addressing mental health, social justice, positive youth development, and sleep hygiene are seldomly delivered in Portugal, meaning that coaches have few opportunities to be exposed to and learn about these important topics. Thus, our results suggest CCEC in Portugal may not be extending coaches’ knowledge much beyond topics covered in their initial coach training. The lack of breadth in training may help perpetuate the emphasis on the technical, tactical, and physical development of youth with the Portuguese youth sport system. Based on the results, implications for youth development are offered
Functional redundancy of Sos1 and Sos2 for lymphopoiesis and organismal homeostasis and survival
et al.Sos1 and Sos2 are ubiquitously expressed, universal Ras guanine nucleotide exchange factors (Ras-GEFs) acting in multiple signal transduction pathways activated by upstream cellular kinases. The embryonic lethality of Sos1 null mutants has hampered ascertaining the specific in vivo contributions of Sos1 and Sos2 to processes controlling adult organism survival or development of hematopoietic and nonhematopoietic organs, tissues, and cell lineages. Here, we generated a tamoxifen-inducible Sos1-null mouse strain allowing analysis of the combined disruption of Sos1 and Sos2 (Sos1/2) during adulthood. Sos1/2 double-knockout (DKO) animals died precipitously, whereas individual Sos1 and Sos2 knockout (KO) mice were perfectly viable. A reduced percentage of total bone marrow precursors occurred in single-KO animals, but a dramatic depletion of B-cell progenitors was specifically detected in Sos1/2 DKO mice. We also confirmed a dominant role of Sos1 over Sos2 in early thymocyte maturation, with almost complete thymus disappearance and dramatically higher reduction of absolute thymocyte counts in Sos1/2 DKO animals. Absolute counts of mature B and T cells in spleen and peripheral blood were unchanged in single-KO mutants, while significantly reduced in Sos1/2 DKO mice. Our data demonstrate functional redundancy between Sos1 and Sos2 for homeostasis and survival of the full organism and for development and maturation of T and B lymphocytes.Work was supported by grants FIS-PS09/01979, RTICC-RD12/0036/0001, and RD12/0036/0048 from Instituto de Salud Carlos III (Madrid, Spain) and Fundación Samuel Solórzano (Salamanca, Spain). This research was also supported by the Intramural Research Program of the CCR, NCI, NIH.Peer Reviewe
Proyecto centro de turismo rural, en Cuellar (Segovia)
Se redacta el presente Proyecto Básico y de Ejecución de un Centro de turismo rural. El edificio se ubica en la parte noreste de la población y está delimitado por una edificación medianera, Av. Camilo José Cela, Av. de la Concepción y la C/ del Rosario. En Cuellar (Segovia)
Está conformado por tres viviendas y dos locales, comunicadas en altura por el núcleo de escaleras (sin ascensor) que se ubica en el centro del edificio y dos locales en planta baja, uno con entrada independiente desde la C/ del Rosario. realizádos en el año 1910, según datos catastrales.
Tiene forma geométrica en planta de polÃgono irregular con unas dimensiones de los lados de 12,62 m, 8,24 m, 11,68 m y 15,21 m de longitud, una superficie construida total de 410,75 m2 y, una superficie ocupada en planta baja de 136,21 m²
Timing of the Middle-to-Upper Palaeolithic transition in the Iberian inland (Cardina-Salto do Boi, Côa Valley, Portugal)
info:eu-repo/semantics/publishedVersio
Layer-dependent mechanical properties and enhanced plasticity in the van der Waals chromium trihalide magnets
The mechanical properties of magnetic materials are instrumental for the
development of the magnetoelastic theory and the optimization of
strain-modulated magnetic devices. In particular, two-dimensional (2D) magnets
hold promise to enlarge these concepts into the realm of low-dimensional
physics and ultrathin devices. However, no experimental study on the intrinsic
mechanical properties of the archetypal 2D magnet family of the chromium
trihalides has thus far been performed. Here, we report the room temperature
layer-dependent mechanical properties of atomically thin CrI3 and CrCl3,
finding that bilayers of CrI3 and CrCl3 have Young's moduli of 62.1 GPa and
43.4 GPa, with the highest sustained strain of 6.09% and 6.49% and breaking
strengths of 3.6 GPa and 2.2 GPa, respectively. Both the elasticity and
strength of the two materials decrease with increased thickness, which is
attributed to a weak interlayer interaction that enables interlayer sliding
under low levels of applied load. The mechanical properties observed in the
few-layer chromium trihalide crystals provide evidence of outstanding
plasticity in these materials, which is qualitatively demonstrated in their
bulk counterparts. This study will contribute to various applications of the
van der Waals magnetic materials, especially for their use in magnetostrictive
and flexible devices.Comment: Main text and supplementary informatio
Recommended from our members
Global ecological predictors of the soil priming effect.
Identifying the global drivers of soil priming is essential to understanding C cycling in terrestrial ecosystems. We conducted a survey of soils across 86 globally-distributed locations, spanning a wide range of climates, biotic communities, and soil conditions, and evaluated the apparent soil priming effect using 13C-glucose labeling. Here we show that the magnitude of the positive apparent priming effect (increase in CO2 release through accelerated microbial biomass turnover) was negatively associated with SOC content and microbial respiration rates. Our statistical modeling suggests that apparent priming effects tend to be negative in more mesic sites associated with higher SOC contents. In contrast, a single-input of labile C causes positive apparent priming effects in more arid locations with low SOC contents. Our results provide solid evidence that SOC content plays a critical role in regulating apparent priming effects, with important implications for the improvement of C cycling models under global change scenarios
- …