Componentes predominantes de la acción tutorial en estudiantes universitarios

The research related to the practice of tutorial action in university students, aimed to determine the predominant component of tutorial, recognizing that tutorial in the university is gaining value and significance for the benefit of the students, as a support area, orientation and coverage during the educational procedure in its different academic, professional and personal dimensions. The study corresponds to the quantitative approach, deductive hypothetical and substantive method, non-experimental, cross-sectional or transactional and explanatory design, with a population of 2629 students whose representative sample was 335 participants. The results of the same showed that 67% of the students considered that the tutorial action they received was adequate, while 33%, also states that the predominant dimension was the academic development. It is concluded that the tutorial action did have a significant and predominant presence since it was considered as adequate within the development of university life in undergraduate students; situation that confirmed and revalued the attention to different needs and interests by the students responding to an education of integral development.La investigación relacionada a la práctica de la acción tutorial en estudiantes universitarios, tuvo como objetivo determinar el componente predominante de la tutoría, reconociendo que la tutoría en la universidad está cobrando valor y significancia en beneficio de los discentes, como área de apoyo, orientación y cobertura durante el proceder educativo en sus distintas dimensiones académicas, profesional y personal. El estudio corresponde al enfoque cuantitativo, de método hipotético deductivo tipo sustantivo, de diseño no experimental, de corte transversal o transaccional y explicativa, con una población de 2629 estudiantes cuya muestra representativa fue de 335 participantes. Los resultados del mismo, demostraron que el 67% de los estudiantes consideraron que la acción tutorial que recibieron fue adecuada, mientras que el 33%, asimismo establece que la dimensión predominante destacada fue el desarrollo académico, se concluye que la acción tutorial sí tuvo presencia significativa y predominante al haber sido considerada como adecuada dentro del desarrollo de la vida universitaria en estudiantes en formación; situación que confirmó y revaloró  por la atención a distintas necesidades e intereses por parte del alumnado respondiendo a una educación de desarrollo integral

Componentes predominantes de la acción tutorial en estudiantes universitarios

The research related to the practice of tutorial action in university students, aimed to determine the predominant component of tutorial, recognizing that tutorial in the university is gaining value and significance for the benefit of the students, as a support area, orientation and coverage during the educational procedure in its different academic, professional and personal dimensions. The study corresponds to the quantitative approach, deductive hypothetical and substantive method, non-experimental, cross-sectional or transactional and explanatory design, with a population of 2629 students whose representative sample was 335 participants. The results of the same showed that 67% of the students considered that the tutorial action they received was adequate, while 33%, also states that the predominant dimension was the academic development. It is concluded that the tutorial action did have a significant and predominant presence since it was considered as adequate within the development of university life in undergraduate students; situation that confirmed and revalued the attention to different needs and interests by the students responding to an education of integral development.La investigación relacionada a la práctica de la acción tutorial en estudiantes universitarios, tuvo como objetivo determinar el componente predominante de la tutoría, reconociendo que la tutoría en la universidad está cobrando valor y significancia en beneficio de los discentes, como área de apoyo, orientación y cobertura durante el proceder educativo en sus distintas dimensiones académicas, profesional y personal. El estudio corresponde al enfoque cuantitativo, de método hipotético deductivo tipo sustantivo, de diseño no experimental, de corte transversal o transaccional y explicativa, con una población de 2629 estudiantes cuya muestra representativa fue de 335 participantes. Los resultados del mismo, demostraron que el 67% de los estudiantes consideraron que la acción tutorial que recibieron fue adecuada, mientras que el 33%, asimismo establece que la dimensión predominante destacada fue el desarrollo académico, se concluye que la acción tutorial sí tuvo presencia significativa y predominante al haber sido considerada como adecuada dentro del desarrollo de la vida universitaria en estudiantes en formación; situación que confirmó y revaloró  por la atención a distintas necesidades e intereses por parte del alumnado respondiendo a una educación de desarrollo integral

Estudio de prefactibilidad para la Implementación de una plataforma digital de la visualización de descuentos del rubro de consumo (ONE)

El siguiente estudio tiene como objetivo definir la factibilidad de una plataforma centralizadora de descuentos para el rubro de consumo. En la actualidad, hay una gran cantidad de descuentos dispersos por medios tradicionales (cupones, flyers, etc.) y medios digitales (cada empresa tiene su propia plataforma-app). Esto genera un problema en el consumidor, debido a que tiene que recurrir a diversas maneras para tener un panorama completo de todos los beneficios que tiene por su asociación a diversas comunidades (bancos, clubes, etc). Frente a esta necesidad, se analizó crear una plataforma centralizadora, que cree valor en ambos lados de la cadena. Los consumidores tendrán acceso sencillo y eficaz a sus descuentos para lograr ahorros significativos. Por otro lado, las empresas mejorarán la penetración de sus programas de descuentos y fidelidades al tener un canal directo a sus consumidores y competir estos con la competencia en forma directa. Asimismo, tendrán información de mercado para poder hacer mejores planeación y alianzas comerciales en base a estos. En primer lugar, se determinaron los objetivos, alcances y limitaciones de esta investigación. Luego, se realizó la factibilidad del mercado objetivo de ONE, tomando data actual del consumo en alimentos fuera del hogar y uso del smartphone en Lima Metropolitana. Por último, se planteó el modelo de negocio ONE sobre la base de ingresos por visitas y clics (publicidad), cupones descargados y afiliaciones de empresas a servicios de información de mercado.The present work aims to evaluate the feasibility of a discount and benefits centralization platform for the food & beverage industry. At the moment, there is a huge amount of discounts all over traditional channels (coupons, flyers, etc) and digital channels (each company has its own platform). This causes confusion on consumers, given that companies expect them to download and access several platforms each time they want to look up for discounts at the moment they plan to have a meal. To solve this problem, we analyze the creation of a discount and benefits centralization platform that generates value on both sides of the value chain. First, consumers will have direct and simple access to all the benefits in which they are entitled to (clubs, banks, etc) combined with other tools (Geolocalization, categorization, etc) they will have gain savings. By the other side we have companies that will improve their penetration on their loyalty and discount programs, by having a direct channel in which they will compete at same market advantage for the loyalty of their customers, given that each one has access to diverse benefit programs. This will create better metrics for companies to analyze and gain better insights over which commercial alliances to develop for further results on their customers. First, the objectives, scope and limitations of this research were determined. Second, we determined the feasibility of the objective demand for ONE, given the actual data on consumption of food and beverage outside home and the use of smartphone on Lima Metropolitan. Finally, the business model for ONE was created based on revenue over customer access, clicks (Ads), coupons and affiliations of companies to market insights generated by the platform

Adult hippocampal neurogenesis as a target for cocaine addiction: a review of recent developments

Author manuscriptBasic research in rodents has shown that adult hippocampal neurogenesis (AHN) plays a key role in neuropsychiatric disorders that compromise hippocampal functioning. The discovery that dependence-inducing drugs regulate AHN has led to escalating interest in the potential involvement of AHN in drug addiction over the last decade, with cocaine being one of the most frequently investigated drugs. This review argues that, unlike other drugs of abuse, preclinical evidence does not, overall, support that cocaine induces a marked or persistent impairment in AHN. Nevertheless, experimental reduction of AHN consistently exacerbates vulnerability to cocaine. Interestingly, preliminary evidence suggests that, on the contrary, increasing AHN might help both to prevent and treat addiction.This study was funded by grants from the Spanish Ministry of Economy and Competitiveness (MINECO, Agencia Estatal de Investigación) cofounded by the European Regional Development Fund -AEI/FEDER, UE- (‘Jóvenes Investigadores grant’ PSI2015-73156-JIN to E.C.O.; and PSI2017-82604R to L.J.S.)

Calibration of the Logarithmic-Periodic Dipole Antenna (LPDA) Radio Stations at the Pierre Auger Observatory using an Octocopter

An in-situ calibration of a logarithmic periodic dipole antenna with a frequency coverage of 30 MHz to 80 MHz is performed. Such antennas are part of a radio station system used for detection of cosmic ray induced air showers at the Engineering Radio Array of the Pierre Auger Observatory, the so-called Auger Engineering Radio Array (AERA). The directional and frequency characteristics of the broadband antenna are investigated using a remotely piloted aircraft (RPA) carrying a small transmitting antenna. The antenna sensitivity is described by the vector effective length relating the measured voltage with the electric-field components perpendicular to the incoming signal direction. The horizontal and meridional components are determined with an overall uncertainty of 7.4^{+0.9}_{-0.3} % and 10.3^{+2.8}_{-1.7} % respectively. The measurement is used to correct a simulated response of the frequency and directional response of the antenna. In addition, the influence of the ground conductivity and permittivity on the antenna response is simulated. Both have a negligible influence given the ground conditions measured at the detector site. The overall uncertainties of the vector effective length components result in an uncertainty of 8.8^{+2.1}_{-1.3} % in the square root of the energy fluence for incoming signal directions with zenith angles smaller than 60{\deg}.Comment: Published version. Updated online abstract only. Manuscript is unchanged with respect to v2. 39 pages, 15 figures, 2 table

Multi-resolution anisotropy studies of ultrahigh-energy cosmic rays detected at the Pierre Auger Observatory

We report a multi-resolution search for anisotropies in the arrival directions of cosmic rays detected at the Pierre Auger Observatory with local zenith angles up to $80^\circ$ and energies in excess of 4 EeV ($4 \times 10^{18}$ eV). This search is conducted by measuring the angular power spectrum and performing a needlet wavelet analysis in two independent energy ranges. Both analyses are complementary since the angular power spectrum achieves a better performance in identifying large-scale patterns while the needlet wavelet analysis, considering the parameters used in this work, presents a higher efficiency in detecting smaller-scale anisotropies, potentially providing directional information on any observed anisotropies. No deviation from isotropy is observed on any angular scale in the energy range between 4 and 8 EeV. Above 8 EeV, an indication for a dipole moment is captured; while no other deviation from isotropy is observed for moments beyond the dipole one. The corresponding $p$-values obtained after accounting for searches blindly performed at several angular scales, are $1.3 \times 10^{-5}$ in the case of the angular power spectrum, and $2.5 \times 10^{-3}$ in the case of the needlet analysis. While these results are consistent with previous reports making use of the same data set, they provide extensions of the previous works through the thorough scans of the angular scales.Comment: Published version. Added journal reference and DOI. Added Report Numbe

Ultrahigh-energy neutrino follow-up of Gravitational Wave events GW150914 and GW151226 with the Pierre Auger Observatory

On September 14, 2015 the Advanced LIGO detectors observed their first gravitational-wave (GW) transient GW150914. This was followed by a second GW event observed on December 26, 2015. Both events were inferred to have arisen from the merger of black holes in binary systems. Such a system may emit neutrinos if there are magnetic fields and disk debris remaining from the formation of the two black holes. With the surface detector array of the Pierre Auger Observatory we can search for neutrinos with energy above 100 PeV from point-like sources across the sky with equatorial declination from about -65 deg. to +60 deg., and in particular from a fraction of the 90% confidence-level (CL) inferred positions in the sky of GW150914 and GW151226. A targeted search for highly-inclined extensive air showers, produced either by interactions of downward-going neutrinos of all flavors in the atmosphere or by the decays of tau leptons originating from tau-neutrino interactions in the Earth's crust (Earth-skimming neutrinos), yielded no candidates in the Auger data collected within $\pm 500$ s around or 1 day after the coordinated universal time (UTC) of GW150914 and GW151226, as well as in the same search periods relative to the UTC time of the GW candidate event LVT151012. From the non-observation we constrain the amount of energy radiated in ultrahigh-energy neutrinos from such remarkable events.Comment: Published version. Added journal reference and DOI. Added Report Numbe

Azimuthal asymmetry in the risetime of the surface detector signals of the Pierre Auger Observatory

The azimuthal asymmetry in the risetime of signals in Auger surface detector stations is a source of information on shower development. The azimuthal asymmetry is due to a combination of the longitudinal evolution of the shower and geometrical effects related to the angles of incidence of the particles into the detectors. The magnitude of the effect depends upon the zenith angle and state of development of the shower and thus provides a novel observable, $(\sec \theta)_\mathrm{max}$, sensitive to the mass composition of cosmic rays above $3 \times 10^{18}$ eV. By comparing measurements with predictions from shower simulations, we find for both of our adopted models of hadronic physics (QGSJETII-04 and EPOS-LHC) an indication that the mean cosmic-ray mass increases slowly with energy, as has been inferred from other studies. However, the mass estimates are dependent on the shower model and on the range of distance from the shower core selected. Thus the method has uncovered further deficiencies in our understanding of shower modelling that must be resolved before the mass composition can be inferred from $(\sec \theta)_\mathrm{max}$.Comment: Replaced with published version. Added journal reference and DO

Evidence for a mixed mass composition at the `ankle' in the cosmic-ray spectrum

We report a first measurement for ultra-high energy cosmic rays of the correlation between the depth of shower maximum and the signal in the water Cherenkov stations of air-showers registered simultaneously by the fluorescence and the surface detectors of the Pierre Auger Observatory. Such a correlation measurement is a unique feature of a hybrid air-shower observatory with sensitivity to both the electromagnetic and muonic components. It allows an accurate determination of the spread of primary masses in the cosmic-ray flux. Up till now, constraints on the spread of primary masses have been dominated by systematic uncertainties. The present correlation measurement is not affected by systematics in the measurement of the depth of shower maximum or the signal in the water Cherenkov stations. The analysis relies on general characteristics of air showers and is thus robust also with respect to uncertainties in hadronic event generators. The observed correlation in the energy range around the `ankle' at $\lg(E/{\rm eV})=18.5-19.0$ differs significantly from expectations for pure primary cosmic-ray compositions. A light composition made up of proton and helium only is equally inconsistent with observations. The data are explained well by a mixed composition including nuclei with mass $A > 4$. Scenarios such as the proton dip model, with almost pure compositions, are thus disfavoured as the sole explanation of the ultrahigh-energy cosmic-ray flux at Earth.Comment: Published version. Added journal reference and DOI. Added Report Numbe