Escenarios y contradicciones del turismo en un área natural protegida: el caso de Celestún Yucatán, México

One of the main contributions in enviromental matters during the second half of the 20th century was deal with the damage that industrialization had been causing to the planet. The ecoturism became seen  as an alternative development contributing to these ends, however, there are Protected natural áreas, which their geographical characteristics, as a matter of fact, dificult the management of an ecological reserve. That is the case of our investigation.Una de las aportaciones más importantes en materia ambiental durante la segunda mitad del siglo XX, fue la declaración de la necesidad de tomar acciones ante los daños que la industrialización estaba causado en el planeta. Es así que surgen políticas públicas relacionadas con la búsqueda de la protección ambiental, entre ellas, las que se relacionaron directamente con la búsqueda de la protección y el resarcimiento del medio ambiente. El ecoturismo surge entonces como alternativa de desarrollo coadyuvante a dichos fines, sin embargo, existen Áreas Naturales Protegidas, que, por sus características físicas y su posición geográfica, dificultan el manejo de los planteamientos sobre sustentabilidad. Nuestro caso particular de estudio plantea las contradicciones en el manejo de una reserva ecológica cuando se conjuga el turismo de playa, con los fines de la conservación por medio del ecoturism

CaH Rydberg Series, Oscillator Strengths and Photoionization Cross Sections from Molecular Quantum Defect and Dyson Orbital Theories

Producción CientíficaIn this work, electron-propagator methods are applied to the calculation of the ionization potential and vertical excitation energies for several Rydberg series of the CaH molecule. The present calculations cover more highly excited states than those previously reported. In particular, excitation energies for ns (n>5), np (n>5), nd (n>4) and nf Rydberg states are given. Oscillator strengths for electronic transitions involving Rydberg states of CaH, as well as photoionization cross sections for Rydberg channels, also have been determined by using the Molecular Quantum Defect Orbital approach. Good agreement has been found with the scarce comparative data that are available for oscillator strengths. To our knowledge, predictions of photoionization cross sections from the outermost orbital of CaH are made here for the first time. A Cooper minimum and mixed atomic orbital character in some of the Dyson orbitals are among the novel features of these present calculationsJunta de Castilla y León (programa de apoyo a proyectos de investigación – Ref. VA330U13

Correlation Analysis of People Attitude and the Development of Chemical Processes in the Human Body

This chemical science investigation was made to efficiently understand the way in which ionic substances operate in the human body and its correlation that they can have with the attitude of people, whose evaluation was carried out according to the analysis of three actions developed in the human body, such as digestion factors, family, work and social relationships (emotional actions) and the health of 10 people surveyed in the city of Tijuana, Baja California. This evaluation had a main hypothesis at the beginning of the investigation, indicating that, of the three factors mentioned, the one that links emotions had the greatest effect on the behavior of the people evaluated, with the aspect of family and work relationships being of primary importance; followed by the health factor and finally the digestion factor. This scientific study included an analysis of three principal aspects, being first the daily food as a nutrition action, followed a chemical analysis of ionic substances of the human body of the 10 persons evaluated. In addition, the third aspect evaluated was the emotional state of the people and a clinic with the urine analysis were considered to indicate the pH, temperature and oxygen level of each person, with which the main chemical elements of the ionic substances that can circulate through the human body were obtained, as part of the food intake. and drinks, emotional factor and digestion. This scientific study was made from March to May of 2023

Are Strength Indicators and Skin Temperature Affected by the Type of Warm-Up in Paralympic Powerlifting Athletes?

(1) Background: the present study aimed to evaluate the effect of different types of warm-ups on the strength and skin temperature of Paralympic powerlifting athletes. (2) Methods: the participants were 15 male Paralympic powerlifting athletes. The effects of three different types of warm-up (without warm-up (WW), traditional warm-up (TW), or stretching warm-up (SW)) were analyzed on static and dynamic strength tests as well as in the skin temperature, which was monitored by thermal imaging. (3) Results: no differences in the dynamic and static indicators of the force were shown in relation to the different types of warm-ups. No significant differences were found in relation to peak torque (p = 0.055, F = 4.560, η2p = 0.246 medium effect), and one-repetition maximum (p = 0.139, F = 3.191, η2p = 0.186, medium effect) between the different types of warm-ups. In the thermographic analysis, there was a significant difference only in the pectoral muscle clavicular portion between the TW (33.04 ± 0.71 °C) and the WW (32.51 ± 0.74 °C) (p = 0.038). The TW method also presented slightly higher values than the SW and WW in the pectoral muscles sternal portion and the deltoid anterior portion, but with p-value > 0.05. (4) Conclusions: the types of warm-ups studied do not seem to interfere with the performance of Paralympic Powerlifting athletes. However, the thermal images showed that traditional warm-up best meets the objectives expected for this preparation phase.post-print1305 K

La necrópolis de Los Collados de Almedinilla (Córdoba). Historiografía de un cementerio complejo

The excavations in the Necropolis of Los Collados, carried out by Luis Maraver y Alfaro in the second half of the 19th century, and afterwards, those done by Pierre Paris and Arthur Engels at the beginning of the 20th century, serve to define archeologically that which would be considered Iberian culture. Since then, apart from a few reviews of materials, this site has been forgotten to the point that its exact location was unknown to researchers. It was because of this that prospecting work and excavation were carried out in May and July 2019 that allowed archeologists to locate the necropolis and recover various tombs and ritual deposits. In this work we present the preliminary results of both interventions

Ciencia Odontológica 2.0

Libro que muestra avances de la Investigación Odontológica en MéxicoEs para los integrantes de la Red de Investigación en Estomatología (RIE) una enorme alegría presentar el segundo de una serie de 6 libros sobre casos clínicos, revisiones de la literatura e investigaciones. La RIE está integrada por cuerpos académicos de la UAEH, UAEM, UAC y UdeG

Sistemas de Información Geográfica y Localización de un Relleno Sanitario en Cerro de Pasco

This study arises as a result of the problem in the location of solid waste final disposal infrastructures (Landfill) where various analysis criteria are taken into consideration following the provisions of DL Regulation N° 1278 Comprehensive Waste Management Law Solid DS N° 014-2017-MINAM. The optimal location analysis was carried out using the Multicriteria Spatial Analysis (AEMC) processes as well as the hierarchical analysis process (AHP) applying it in a Geographic Information System (ArcGis). The purpose of the investigation was to locate the appropriate areas for the final disposal of solid waste in the city of Cerro de Pasco. The results present the consideration of 6 alternative locations for the sanitary landfill, all of them between 3 and 4.13 km away from the city, under physical, environmental, socioeconomic and legal criteria. It is concluded that geographic information systems, multi-criteria spatial analysis and hierarchical analysis are appropriate for solving location problems.El presente estudio surge a raíz de la problemática en la ubicación de infraestructuras de disposición final (relleno sanitario) de residuos sólidos donde se toma en consideración diversos criterios de análisis siguiendo lo dispuesto en el Reglamento del DL N° 1278 Ley de Gestión Integral de Residuos Sólidos DS N° 014-2017-MINAM. Se realizó el análisis de localización óptima utilizando los procesos de Análisis Espacial Multicriterio (AEMC) así como el proceso de análisis jerárquico (AHP) aplicándolo en un Sistema de Información Geográfica (ArcGis). La investigación tuvo como propósito localizar las áreas adecuadas para la disposición final de residuos sólidos en la ciudad de Cerro de Pasco. Los resultados presentan la consideración de 6 alternativas de localización para el relleno sanitario, todas ellas comprendidas entre los 3 y 4.13 km de distancia de la ciudad, bajo criterios físicos, ambientales, socioeconómicos y legales. Se concluye que los sistemas de información geográfica, el análisis espacial multicriterio y el análisis jerárquico son apropiados para la resolución de problemas de localización