VHE Emission from Magnetic Reconnection in the RIAF of SgrA*

The cosmic-ray (CR) accelerator at the galactic centre (GC) is not yet established by current observations. Here we investigate the radiative-inefficient accretion flow (RIAF) of Sagittarius A* (SgrA*) as a CR accelerator assuming acceleration by turbulent magnetic reconnection, and derive possible emission fluxes of CRs interacting within the RIAF (the central $\sim10^{13}$cm). The target environment of the RIAF is modelled with numerical, general relativistic magneto-hydrodynamics (GRMHD) together with leptonic radiative transfer simulations. The acceleration of the CRs is not computed here. Instead, we inject CRs constrained by the magnetic reconnection power of the accretion flow and compute the emission/absorption of $\gamma$-rays due to these CRs interacting with the RIAF, through Monte Carlo simulations employing the {\tt CRPropa 3} code. The resulting very-high-energy (VHE) fluxes are not expected to reproduce the point source HESS J1745-290 as the emission of this source is most likely produced at pc scales. The emission profiles derived here intend to trace the VHE signatures of the RIAF as a CR accelerator and provide predictions for observations of the GC with improved angular resolution and differential flux sensitivity as those of the forthcoming Cherenkov Telescope Array (CTA). Within the scenario presented here, we find that for mass accretion rates $\gtrsim 10^{-7}$M$_\odot$yr$^{-1}$, the RIAF of SgrA* produces VHE fluxes which are consistent with the H.E.S.S. upper limits for the GC and potentially observable by the future CTA. The associated neutrino fluxes are negligible compared with the diffuse neutrino emission measured by the IceCube.Comment: Accepted for publication in the Ap

Biomechanical Analysis of Non-Metallic Biomaterial in the Manufacture of a New Knee Prosthesis

The increase in the number of revision surgeries after a total knee replacement surgery reaches 19%. One of the reasons for the majority of revisions relates to the debris of the ultra-high molecular weight polyethylene that serves to facilitate the sliding between the femoral and tibial components. This paper addresses the biomechanical properties of ULTEMTM 1010 in a totally new knee replacement design, based on one of the commercial models of the Stryker manufacturer. It is designed and produced through additive manufacturing that replaces the tibial component and the polyethylene in such a way as to reduce the pieces that are part of the prosthetic assembly to only two: the femoral and the tibial (the so-called “two-component knee prosthesis”). The cytotoxicity as well as the live/dead tests carried out on a series of biomaterials guarantee the best osteointegration of the studied material. The finite element simulation method guarantees the stability of the material before a load of 2000 N is applied in the bending angles 0 , 30 , 60 , 90 , and 120 . Thus, the non-metallic prosthetic material and approach represent a promising alternative for metal-allergic patients.The live/dead test was exclusively supported by the Andalucia FEDER/ITI 2014-2020 Grant for PI 013/017, as well as the Junta de Andalucia TEP 181 and the CTS 253 PAIDI Spanish research groups

Personality Prototypes in People with Type 1 Diabetes and Their Relationship with Adherence

Type 1 diabetes (Dm1) is a chronic endocrine and metabolic disease that affects the whole person and requires active, decisive treatment. However, personality traits may influence a patient’s adherence to treatment guidelines. The objective of this work is firstly to identify the 3 Asendorpf personality prototypes (resilient, undercontrolled and overcontrolled) in a sample of Dm1 individuals and determine whether there are any differences in comparison with a control sample; and, secondly, to study their association with adherence to self-care guidelines using both physiological indicators (HbA1C) and self-report measures. To achieve these objectives, a descriptive cross-sectional study was carried out. The sample comprised 294 participants, of whom 104 were people with Dm1 and 190 were controls. The participants, aged between 14 and 34 years, were classified by their scores in NEO-FFI-R, according to the personality characteristics inherent to Asendorpf’s prototypes. Asendorpf’s 3 prototypical personality patterns were found both in the group of people with Dm1 and in the control sample. These patterns showed different degrees of association with adherence to self-care guidelines for this disease and with psychological health factors. Importance should therefore be attached to the personality traits and Asendorpf prototypes of people with Dm1 when proposing interventions to address medical, psychological, and behavioral aspects

A New Intervention Procedure for Improving Classroom Behavior of Neglected Children: Say Do Say Correspondence Training

Although neglect is the most common form of child maltreatment, a review of the literature since 1980 reveals a lack of controlled child neglect intervention programs. The aim of this study is to assess a new intervention program to improve the classroom behavior of children exposed to neglect only, by reducing disruptive conduct and promoting adaptive conduct. Two matched groups were selected with children of the same ages, sex, and social class (cultural and economic level) and with mothers of similar ages. The experimental group comprised of five children suffering from neglect and no other type of maltreatment. The control group had five children not abused or neglected. All the children were in the same class at school. The percentage of time per session that each child spent engaged in disruptive behavior was measured (baseline) and was found significantly higher among neglected children. Say-Do-Say Correspondence Training was applied with the neglected children and a rapid, significant reduction in their disruptive behavior was observed (and statistically confirmed), bringing such behavior down to the level of the control (i.e., non-neglected) children. These results were maintained when the intervention was halted. We concluded that the adaptive and classroom behavior of neglected children can be improved with this non-intrusive intervention

Nonlinear evolution of harmonically forced perturbations on a wingtip vortex

Wingtip vortices are created by flying airplanes due to lift generation. The vortex interaction with the trailing aircraft has sparked researchers’ interest to develop an efficient technique to destroy these vortices. Different models have been used to describe the vortex dynamics and they all show that, under real flight conditions, the most unstable modes produce a very weak amplification. Another linear instability mechanism that can produce high energy gains in short times is due to the non-normality of the system. Recently, it has been shown that these non-normal perturbations also produce this energy growth when they are excited with harmonic forcing functions. In this study, we analyze numerically the nonlinear evolution of a spatially, pointwise and temporally forced perturbation, generated by a synthetic jet at a given radial distance from the vortex core. This type of perturbation is able to produce high energy gains in the perturbed base flow (10^3), and is also a suitable candidate for use in engineering applications. The flow field is solved for using fully nonlinear three-dimensional direct numerical simulation with a spectral multidomain penalty method model. Our novel results show that the nonlinear effects are able to produce locally small bursts of instability that reduce the intensity of the primary vortex.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Theoretical parameters of trailing vortices versus aspect ratio of wing models

We perform 2D-PIV measurements to characterize trailing vortices in NACA0012 wing models for aspect ratios ranging between 1 and 2.5, and for chord-based Reynolds numbers from 7000 to 40000. Firstly, and regarding the influence of the Reynolds number, the increase of this dimensionless parameter generates a more concentrated and intense vortex, presenting, therefore, an increase in all its characteristic magnitudes: maximum azimuthal velocity and vorticity. Secondly, the greater the aspect ratio, the greater the vortex strength is observed. Thirdly, the radial location of the peak of the azimuthal velocity has a strong decay as the aspect ratio increases for Re=7000, but it changes its trend for Re=40000.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.. Ministerio de Economía y Competitividad (Spain) Grant No. DPI2013-40479-P and DPI2016-76151-C2-1-R and Junta de Andalucía Grant No. P11-TEP-7776

Kinematic and physiological analysis of the performance of the referee football and its relationship with decision making

The aim of this study was to examine the cinematic and physiological requirements of referees and assistant referees and their relationship to decision-making in various official competition matches in football. The sample consisted of six referees, one acted as main referee and five as assistant referees (age: 21.2 ± 0.98 years; height: 175.67 ± 4.27 cm, weight: 65.73 ± 4.68 kg). The registration of the data of the subjects participating in the study was conducted with an inertial system called WIMU and the analysis of the data was performed with a software called Quiko (RealTrack Systems, Almeria, Spain). In the study, 4 games of the League Championship Third Division (Group XIII) belonging to the 2014-2015 season were analyzed. The main findings were that the referee runs an average distance of 10124.7 ± 543.2 meters, with an average speed between 7.2 and 13 km/h with a maximum heart rate (HRmax) between 85-95% of his maximum; assistant referees walked an average distance of 5793.4 ± 481.7 meters, with an average speed between 3.6 to 7.2 km/h with a HRmax between 75-85% of their maximum. The aspects which influenced the decision making of the referees and caused the errors were: the part of the pitch, the period of play and the HRmax percentage of the referee. What this research shows is that referees and assistant referees should be considered in terms of training as independent people, and that referees must correct the movements in the field, concentration and work situations where your HRmax is above 85% to improve its success rate. Future studies should pursue this investigation with a greater number of senior officials and higher number of matches to generalize the results to all arbitral establishments and improve its quality

Stability analysis of flow structures in hovering using robotic experiments and flow visualizations

We investigate the kinematics and stability of hovering flight making use of a robotic experimental device that simulate the movement of insects or birds. We carried out this analysis based on the characterization of this movement with flow visualizations and particle image velocimetry -PIV-. First, we characterized the kinematics of the robotic device inside water. Therefore, it has been verified that the robotic experiments follow the desired input signal precisely. Second, we give qualitative and quantitative information from the experimental tests as a function of frequency and angular amplitude. The kinematics of the hovering flight produces vortices that are stable or unstable around the rigid flat plate, as well as one transient regime that has been also found between these two latter states. Finally, dimensional velocity field plus associated vorticity have been characterized in these flow regimes through PIV measurements, and we also validated the reproducibility of experiment finding excellent agreement between different set of experiments.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tec

EVALUACION DE SULFATO DE COBRE PENTAHIDRATADO EN EL CONTROL DE PATOLOGIAS DE FRUTALES Y VIDES Y EFECTO EN VINIFICACIÓN

Formulaciones convencionales de cobre se utilizan en altas dosis, generan impacto biótico en suelo y fitotoxicidad. En la Región del Maule entre 2011-13, se evaluó nueva formulación nacional de sulfato de cobre pentahidratado polvo soluble para el control de Fussicoccum sp y Pseudomonas syringae en Arándanos; Pseudomonas syringae en Cerezos y Kiwis; Venturia inaequalis en Manzanos, Spilocaea oleagina en Olivos; Uncinula necator, Botrytis cinerea y Pudrición ácida en Vides. Además se evaluó el efecto de aplicación 8 días precosecha en vinificación de uva Cabernet Sauvignon. Se obtuvo diferencias significativas en comparación con testigos en incidencia y severidad, en dosis entre 30 y 120gr/hl. Precosecha en uva no genera toxicidad ni manchas, en mosto y vino a máxima dosis, genera residuos inferiores a 1ppm de cobre, no afecta la cinética de fermentación del vino