Esport i autoconcepte físic en la preadolescència

Es considera provat que l’activitat física i la pràctica esportiva tenen una relació directa amb l’autoconcepte i que la relació esmentada és bidireccional. Cal, però, matisar aquesta afirmació, perquè també se sap, per exemple, que no de tota activitat física se’n deriven, ras i curt, efectes beneficiosos, que s’han trobat associacions entre la insatisfacció corporal i l’exercici físic excessiu o que resulta inadequat al·ludir a l’autoconcepte de forma genèrica sense diferenciar-ne dimensions. En aquest estudi, realitzat amb 343 estudiants de 13 a 16 anys, s’ofereixen dades obtingudes mitjançant un nou Qüestionari d’Autoconcepte Físic (QAF) que permeten de precisar la relació existent entre l’autoconcepte físic i variables com ara la pràctica esportiva, el gènere, l’edat, l’índex de massa corporal i el grau de satisfacció corporal

Enabling Fast and Energy-Efficient FM-index Exact Matching using Processing-Near-Memory

Memory bandwidth and latency constitutes a major performance bottleneck for many data-intensive applications. While high-locality access patterns take advantage of the deep cache hierarchies available in modern processors, unpredictable low-locality patterns cause a significant part of the execution time to be wasted waiting for data. An example of those memory bound applications is the exact matching algorithm based on FM-index, used in some well-known sequence alignment applications. Processing-Near-Memory (PNM) has been proposed as a strategy to overcome the memory wall problem, by placing computation close to data, speeding up memory bound workloads by reducing data movements. This paper presents a performance and energy evaluation of two classes of processor architectures when executing the FM-index exact matching algorithm, as a reference algorithm for exact sequence alignment. One architecture class is processor-centric, based on complex cores and DDR3/4 SDRAM memory technology. The other architecture class is memory-centric, based on simple cores and ultra high-bandwidth Hybrid Memory Cube (HMC) 3D-stacked memory technology. The results show that the PNM solution improves performance between 1.26× and 3.7× and the energy consumption per operation is reduced between 21× and 40×. In addition, a synthetic benchmark RANDOM was developed that mimics the memory access pattern of the FM-index exact matching algorithm, but with a user configurable operational intensity. This benchmark allows us to extend the evaluation to the class of algorithms with similar memory behaviour but running over a range of operational intensity values.TIN2016-80920-R, PID2019-105396RB-I00, UMA18-FEDERJA-19

Deporte y autoconcepto físico en la preadolescencia

Se considera probado que la actividad física y la práctica deportiva guardan relación directa con el autoconcepto y que dicha relación es bidireccional. Pero esta afirmación precisa ser matizada ya que también se sabe, por ejemplo, que no derivan sin más efectos beneficiosos de toda actividad física, que se han encontrado asociaciones entre la insatisfacción corporal y el ejercicio físico excesivo o que resulta inadecuado aludir al autoconcepto de forma genérica sin diferenciar dimensiones del mismo. En este estudio, realizado con 343 estudiantes de 13 a 16 años, se ofrecen datos obtenidos mediante un nuevo Cuestionario de Autoconcepto Físico (CAF) que permiten precisar la relación existente entre el autoconcepto físico y variables tales como la práctica deportiva, el género, la edad, el índice de masa corporal y el grado de satisfacción corporal

Protecting fiber-optic links from third party intrusion using distributed acoustic sensors

19th International Conference on Transparent Optical Networks, 02/07/2017-06/07/2017, Girona, España.European CommissionMinisterio de Economía y CompetitividadComunidad de Madri

Laser Phase-noise Cancellation in Chirped-pulse Distributed Acoustic Sensors

European CommissionMinisterio de Economía y CompetitividadComunidad de Madri

> 10 dB SNR Enhancement in Distributed Acoustic Sensors through First Order Phase Noise Cancellation

The Optical Networking and Communication Conference & Exhibition, 11/03/2018-15/03/2018, San Diego, Estados Unidos.The performance of Rayleigh-based distributed acoustic sensors (DAS) is strongly dependent on the coherence of the laser source. We present a simple methodology to reduce the impact of the laser phase noise in chirped-pulse DAS.European CommissionMinisterio de Economía y Competitivida

Chirped-pulse phase-sensitive reflectometry

X Reunión Española de Optoelectrónica (OPTOEL17), 12/07/2017-14/07/2017, Santiago de Compostela, España.In this work, a new distributed fiber sensor named chirped-pulse phase-sensitive OTDR is presented. It is based on a phase-sensitive OTDR using direct detection and linearly chirped pulses. The new sensor allows the dynamic and quantitative measurement of temperature/strain changes, with mK/nå resolution. The technique does not require a frequency sweep or coherent detection. It is presented the fundamentals of the sensor and measurements of temperature, vibrations and music.European CommissionMinisterio de Economía y CompetitividadComunidad de Madri

Beneficial effects of the phytocannabinoid Δ9-THCV in L-DOPA-induced dyskinesia in Parkinson's disease

The antioxidant and CB2 receptor agonist properties of Δ9-tetrahydrocannabivarin (Δ9-THCV) afforded neuroprotection in experimental Parkinson's disease (PD), whereas its CB1 receptor antagonist profile at doses lower than 5 mg/kg caused anti-hypokinetic effects. In the present study, we investigated the anti-dyskinetic potential of Δ9-THCV (administered i.p. at 2 mg/kg for two weeks), which had not been investigated before. This objective was investigated after inducing dyskinesia by repeated administration of L-DOPA (i.p. at 10 mg/kg) in a genetic model of dopaminergic deficiency, Pitx3ak mutant mice, which serves as a useful model for testing anti-dyskinetic agents. The daily treatment of these mice with L-DOPA for two weeks progressively increased the time spent in abnormal involuntary movements (AIMs) and elevated their horizontal and vertical activities (as measured in a computer-aided actimeter), signs that reflected the dyskinetic state of these mice. Interestingly, when combined with L-DOPA from the first injection, Δ9-THCV delayed the appearance of all these signs and decreased their intensity, with a reduction in the levels of FosB protein and the histone pAcH3 (measured by immunohistochemistry), which had previously been found to be elevated in the basal ganglia in L-DOPA-induced dyskinesia. In addition to the anti-dyskinetic effects of Δ9-THCV when administered at the onset of L-DOPA treatment, Δ9-THCV was also effective in attenuating the intensity of dyskinesia when administered for three consecutive days once these signs were already present (two weeks after the onset of L-DOPA treatment). In summary, our data support the anti-dyskinetic potential of Δ9-THCV, both to delay the occurrence and to attenuate the magnitude of dyskinetic signs. Although further studies are clearly required to determine the clinical significance of these data in humans, the results nevertheless situate Δ9-THCV in a promising position for developing a cannabinoid-based therapy for patients with PD.Fil: Espadas, Isabel. INSTITUTO CAJAL ; CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS;Fil: Keifman, Ettel. INSTITUTO CAJAL ; CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS; . Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Fisiología y Biofísica Bernardo Houssay. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Fisiología y Biofísica Bernardo Houssay; ArgentinaFil: Palomo Garo, Cristina. Universidad Complutense de Madrid; EspañaFil: Burgaz, Sonia. Universidad Complutense de Madrid; EspañaFil: García, Concepción. Universidad Complutense de Madrid; EspañaFil: Fernández Ruiz, Javier. Universidad Complutense de Madrid; EspañaFil: Moratalla, Rosario. INSTITUTO CAJAL ; CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS

Chirped-pulse Phase-sensitive Optical Time Domain Reflectometry

Asia Communications and Photonics Conference, 02/11/2016-05/11/2016, Wuhan, China.European CommissionMinisterio de Economía y CompetitividadComunidad de Madri