El Neolític Antic evolucionat a les mines prehistòriques de Gavà: noves aportacions del projecte Mines Prehistòriques

El jaciment de les Mines Prehistoriques de Gava (Gava, Baix Llobregat), ha estat i és objecte des deis últims anys d'un projecte d'investigació interdisciplinar endegat des de la Fundació Pública Museu de Gava. EIs primers resultats obtinguts, part deis quals presentem en aquest article, ens proporcionen noves dades sobre els tipus d'explotació, la gamma de minerals explotats i la seva cronologia. A partir dels materials procedents de les excavacions realitzades durant l'any 1991, podem precisar sobre la cronologia d'inici de les explotacions mineres en el Neolític Antic a més de la seva vinculació amb l'economia de producció i amb la implantació de les societats camperoles en la primera meitat del IV mil.lenni a.C. _____________________________________________ Les Mines Préhistoriques de Gava (Gava, Baix Llobregat) ont été objet depuis les demiers années d'un projet d'investigation interdisciplinaire dirigé par le Museu de Gava. Les premiers résultats obtenus nous apportent nouvelles données sur les types d'explotation, les mineraux obtenus et sa cronologie. Avec l'étude des materiels provenants des fouilles realisées l'année 1991 ont peu préciser sur la cronologie initiale pendan! le Néolithique Ancien des explotations minieres et la liaison a l'économie de productioll et a la formation des sóciétés paysannes dans la premiere moitié du IVeme millénaire a.e

Electrostatic microturbulence in W7-X: comparison of local gyrokinetic simulations with Doppler reflectometry measurements

The first experimental campaigns of Wendelstein 7-X (W7-X) have shown that turbulence plays a decisive role in the performance of neoclassically optimized stellarators. This stresses the importance of understanding microturbulence from the theoretical and experimental points of view. To this end, this paper addresses a comprehensive characterization of the turbulent fluctuations by means of nonlinear gyrokinetic simulations performed with the code stella in two W7-X scenarios. In the first part of the paper, the amplitude of the density fluctuations is calculated and compared with measurements obtained by Doppler reflectometry (DR) in the OP1 experimental campaigns. It is found that the trend of the fluctuations along the radius is explained by the access of the DR system to different regions of the turbulence wavenumber spectrum. In the second part of the article, frequency spectra of the density fluctuations and the zonal component of the turbulent flow are numerically characterized for comparisons against future experimental analyses. Both quantities feature broad frequency spectra with dominant frequencies of O(1)–O(10) kHz

Prediction-Based Control for Nonlinear Systems with Input Delay

This work has two primary objectives. First, it presents a state prediction strategy for a class of nonlinear Lipschitz systems subject to constant time delay in the input signal. As a result of a suitable change of variable, the state predictor asymptotically provides the value of the state τ units of time ahead. Second, it proposes a solution to the stabilization and trajectory tracking problems for the considered class of systems using predicted states. The predictor-controller convergence is proved by considering a complete Lyapunov functional. The proposed predictor-based controller strategy is evaluated using numerical simulations

Evaluación dosimétrica del tratamiento de cráneo total con protección al hipocampo

El Radiation Therapy Oncology Group (RTOG) en su reporte 0933 propone proteger el hipocampo para prevenir la disminución de las funciones neurocognitivas asociada a la radioterapia de cráneo total, estableciendo la tolerancia en el hipocampo en 16 Gy. Verificar la precisión en el tratamiento de cráneo total con protección al hipocampo (WBRT-HA) desempeña un papel fundamental para asegurar la entrega de la dosis en el cerebro y la protección al hipocampo

El surgimiento del futbol femenil en Guadalajara en un contexto de predominio masculino

En esta investigación se aborda el origen y el desarrollo del futbol femenil en México y particularmente en el estado de Jalisco. Se estudia la manera en que han afrontado los obstáculos en un entorno predominantemente masculino y machista, y se habla de las primeras jugadoras, equipos y ligas que ha habido en el país y el estado del futbol femenil en el México actual y, sobre todo, en el Área Metropolitana de Guadalajara, y su relación con el entorno social, económico y mediático.ITESO, A.C

El surgimiento del futbol femenil en Guadalajara en un contexto de predominio masculino

Investigación sobre el origen y el desarrollo del futbol femenil en México y particularmente en el estado de Jalisco, y la manera en que han afrontado los obstáculos en un entorno predominantemente masculino y machista; se habla de las primeras jugadoras, equipos y ligas que ha habido en el país y el estado del futbol femenil en el México actual y, sobre todo, en el Área Metropolitana de Guadalajara, y su relación con el entorno social, económico y mediático.ITESO, A.C

Cálculo de la incertidumbre en la medida de dosis absorbida basado en el TRS 398

La determinación de la dosis absorbida en agua a la profundidad de referencia, para un haz de calidad Q, según el TRS 398

Integrating local environmental data and information from non-driven citizen science to estimate jellyfish abundance in Costa del Sol (southern Spain)

Tourism, fishing and aquaculture are key economic sectors of Costa del Sol (southern Iberian Peninsula). The management of these activities is sometimes disturbed by the onshore arrival and stranding of jellyfish swarms. In the absence data on the occurrence of these organisms, it may be interesting to explore data from non-driven systems, such as social networks. The present study show how data in text format from a mobile app called Infomedusa can be processed and used to model the relationship between estimated abundance of jellyfish on the beaches and local environmental conditions. The data retrieved from this app using artificial intelligence procedures (transition network or TN algorithm), were used as input for GAM models to estimate the abundance of jellyfish based on wind speed and direction. The analysis of data provided by Infomedusa indicated that only 30.39% of messages provided by the users had information about absence/presence of jellyfishes in the beaches. On the other hand, the TN processing capacity showed an accuracy level to discriminate messages with information on absence/presence of jellyfish slightly higher than 80%. GAM models considering the wind direction and speed of previous day explained between 37% and 77% of the variance of jellyfish abundance estimate from Infomedusa data. In conclusion, this approach may contribute to the development of a system for predicting the onshore arrival of jellyfish in the Costa del Sol.Versión del edito

Mfn2 localization in the ER is necessary for its bioenergetic function and neuritic development

Mfn2 is a mitochondrial fusion protein with bioenergetic functionsimplicated in the pathophysiology of neuronal and metabolicdisorders. Understanding the bioenergetic mechanism of Mfn2may aid in designing therapeutic approaches for these disorders.Here we show using endoplasmic reticulum (ER) or mitochondria-targeted Mfn2 that Mfn2 stimulation of the mitochondrial meta-bolism requires its localization in the ER, which is independent ofits fusion function. ER-located Mfn2 interacts with mitochondrialMfn1/2 to tether the ER and mitochondria together, allowing Ca2+transfer from the ER to mitochondria to enhance mitochondrialbioenergetics. The physiological relevance of these findings isshown during neurite outgrowth, when there is an increase inMfn2-dependent ER-mitochondria contact that is necessary forcorrect neuronal arbor growth. Reduced neuritic growth in Mfn2KO neurons is recovered by the expression of ER-targeted Mfn2 oran artificial ER-mitochondria tether, indicating that manipulationof ER-mitochondria contacts could be used to treat pathologicconditions involving Mfn2