Search results for " física"
showing 10 items of 920 documents
Study with surface electromyography, borg scale and rom upper trapezius, deltoid of the three portions (clavicular, acromial, spinal) and the latissi…
2017
The pathologies located at shoulder can be caused by misuse or continued implementation of a sporting practice or physical activity. These pathologies are second position in the ranking of Traumatologics and Orthopedic Clinicals (Windt, Koes, De Jong & Bouter, 1995). Shoulder’s muscle injuries can occur when the arm is in a position that exceeds normal, this fact is repeated in sport, may be the repetition of the hand signal of the inductor problem (Kapandji, 2006). Given the importance of muscle function of the shoulder joint, along the existing boom of new techniques in the specific muscle activation has been carried out an experimental study using a " Test neuro proprioceptive response "…
Pixel-Bit
2008
Juan.P.Molina@uv.es; Jose.Devis@uv.es; Carmen.Peiro@uv.es Los materiales curriculares en la educación física han sufrido una importante transformación y diversificación durante las últimas décadas. Sin embargo, su potencial educativo e innovador depende del uso que se haga de ellos. Por ello, ofrecemos una clasificación de los materiales curriculares que, además de recoger la diversidad mencionada, nos sirve para explorar el uso de los materiales entre el profesorado de esta materia. Más allá del predominio de los recursos materiales de carácter deportivo emergen los materiales impresos cuyo uso puede contribuir a la mejora de la enseñanza siempre y cuando vertebren la teoría con la práctic…
Theoretical study of the electronic spectrum of p-benzoquinone
1999
The electronic excited states of p-benzoquinone have been studied using multiconfigurational second-order perturbation theory (CASPT2) and extended atomic natural orbital (ANO) basis sets. The calculation of the singlet–singlet and singlet–triplet transition energies comprises 19 valence singlet excited states, 4 valence triplet states, and the singlet 3s,3p, and 3d members of the Rydberg series converging to the first four ionization limits. The computed vertical excitation energies are found to be in agreement with the available experimental data. Conclusive assignments to both valence and Rydberg states have been performed. The main features of the electronic spectrum correspond to the π…
A theoretical study of the electronic spectrum of bithiophene
1995
The electronic spectrum of bithiophene in the energy range up to 6.0 eV has been studied using multiconfigurational second order perturbation theory (CASPT2) and a basis set of ANO type, with split valence quality and including polarization functions on all heavy atoms. Calculations were performed at a planar (trans) and twisted geometry. The calculated ordering of the excited singlet states is 1Bu, 1Bu, 1Ag, 1Ag, and 1Bu with 0–0 transition energies: 3.88, 4.15, 4.40, 4.71, and 5.53 eV, respectively. The first Rydberg transition (3s) has been found at 5.27 eV. The results have been used in aiding the interpretation of the experimental spectra, and in cases where a direct comparison is poss…
Theoretical characterization of the lowest-energy absorption band of pyrrole
2002
The lowest-energy band of the electronic spectrum of pyrrole has been studied with vibrational resolution by using multiconfigurational second-order perturbation theory (CASPT2) and its multistate extension (MS–CASPT2) in conjunction with large atomic natural orbital-type basis sets including Rydberg functions. The obtained results provide a consistent picture of the recorded spectrum in the energy region 5.5–6.5 eV and confirm that the bulk of the intensity of the band arises from a ππ∗ intravalence transition, in contradiction to recent theoretical claims. Computed band origins for the 3s,3p Rydberg electronic transitions are in agreement with the available experimental data, although new…
Electronic structure of metal‐free phthalocyanine : A valence effective Hamiltonian theoretical study
1988
We present a valence effective Hamiltonian (VEH) nonempirical investigation of the electronic properties of metal‐free phthalocyanine. The valence one‐electron energy levels are related to those of the phthalocyanine components: benzene, pyrrole, and isoindole. From the electronic structure standpoint, phthalocyanine has to be viewed as formed by joining four benzene moieties to the central carbon–nitrogen ring rather than by combining four isoindole units through nitrogen bridges. Comparison of the VEH density‐of‐valence‐states curves with the experimental ultraviolet photoelectron spectroscopy (UPS) data is quantitatively excellent and allows for a complete interpretation of the experimen…
La influencia del género y de la formación académica en la intención de emprender de los estudiantes de ciencias de la actividad física y el deporte
2016
Objeto: El objetivo del presente artículo es conocer si existen diferencias en las variables que explican la intención de emprender de los estudiantes universitarios de Ciencias de la Actividad Física y el Deporte atendiendo a la formación y al género de éstos. Diseño/metodología: Para conocer las intenciones de emprender y las distintas variables relacionadas con el emprendimiento se utilizó un cuestionario previamente validado. Éste fue administrado a 578 estudiantes pre-graduados (1er - 4º curso) y post-graduados de Ciencias de la Actividad Física y el Deporte de Valencia. Aportaciones y resultados: Se encontraron diferencias significativas (p≤0.05) en las variables que predicen la inten…
Varying numbers of players in small-sided soccer games modifies action opportunities during training
2014
This study examined the effects of the numbers of players involved in small-sided team games (underloading and overloading) on opportunities for maintaining ball possession, shooting at goal and passing to teammates during training. These practice constraint manipulations were assumed to alter values of key performance variables identified in previous research, such as interpersonal distances between players and time to intercept shots and passes. Fifteen male soccer players (age: 19.60±1.99 years) were grouped into three teams and played against each other in different versions of small-sided soccer games, in which the number of players was manipulated in three different conditions: 5 vs. …
“Mamá, me quiero ir de este colegio”. Un análisis de las experiencias de acoso escolar de estudiantes con diversidad funcional
2023
Bullying is a high-prevalence problem in the classrooms of our schools. Young people with functional diversity constitute a particularly vulnerable population when they are involved in such situations. This study analyses the harassment experiences of five young people with functional diversity. To this end, five semi-structured interviews and a focus group were conducted. Participants reported having experienced verbal, physical, social and sexual harassment. The treatment of these situations by educational institutions was ineffective and the solution adopted in all cases was a change in the type of schooling. These results highlight the need to carry out teacher training and sensitizatio…
Use of nutritional supplement to improve performance in professional soccer players: A case report
2020
The aim of the study was to investigate the intake percentage and the satisfaction level of some nutritional supplements used by professional soccer players. Twenty-nine professional soccer players (age: 24.6 ± 5.2 years, body weight: 79.2 ± 4.9 kg, body height: 1.83 ± 0.05 m) belonging to a team of Serie A were interviewed on: frequency of use, tolerability, and acceptance of the supplements (creatine, β-alanine, whey protein, nitrates, vitamin D3, caffeine) proposed by the nutritionist team. This survey revealed a great inter-individual variability on the intake of the proposed supplements. All respondents (n = 29) said they take cholecalciferol (vitamin D3), 17 out of 29 creatine, 14 out…