3,438 research outputs found

    Contextualización de la Agricultura y el Patrimonio a miras de Identificar y Caracterizar Productos de Interés Patrimonial/Contextualization of Agriculture and Heritage in order to Identify and Characterize Products of Patrimonial Interest

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    El Gobierno Provincial de Chimborazo contó con un proceso enriquecedor y participativo de alrededor de tres años que devino en la construcción de una Agenda De Competitividad, la misma que marca una línea de proyección para el fomento productivo de la Provincia de Chimborazo. Dentro de una lectura de estrategias agrícolas, se precisaron un conjunto de productos con una profunda relación social, pero que presentan serias debilidades en términos de productividad y posibilidades de mercado, como por ejemplo diversas variedades tubérculos andinos, o ciertas gramíneas, empero no por ello hay que extralimitar estos cultivos frente al desarrollo, al contrario, en función de la sostenibilidad son una prioridad de rescatar, mantener y valorizar. El objetivo de este trabajo es realizar una contextualización y conceptualización de manera preliminar con la finalidad de identificar y caracterizar los productos agrícolas de importancia patrimonial para la provincia de Chimborazo. Como parte del proceso de la Agenda de Competitividad de la Provincia de Chimborazo surgió la necesidad de establecer una investigación que amplié información de base para generar sustentos y criterios que permitan establecer estrategias apropiadas y oportunas, teniendo corresponsabilidad con el esfuerzo de la colectividad chimboracense, especialmente del sector rural, en la apropiación de sus condiciones y la búsqueda de la identidad productiva para la provincia. The Government of Province of Chimborazo had an enriching and participatory process of about three years that resulted in the construction of a Competitiveness Agenda to mark a line of projection for productive development. Within a reading of agricultural strategies, a set of products with a deep social relationship was required, but which present serious weaknesses in terms of productivity and market possibilities, for example, such as diverse varieties of Andean tubers, or certain gramineous, but not for this, we must overreach these crops against development, instead, depending on sustainability they are a priority to rescue, maintain and value. The objective of this work is to make a contextualization and conceptualization in a preliminary way in order to identify and characterize agricultural products of heritage importance for the province of Chimborazo. As part of process from Competitiveness Agenda of Province of Chimborazo, the need arose to establish an investigation that broadened base information to generate support and criteria for establishing appropriate and timely strategies, co-responsibility with the effort of the Chimboracense community, especially the rural sector, in the appropriation of their conditions and the search for productive identity for the province. Palabras clave: Gestión social, Sostenibilidad, Línea de tiempo, Salvaguardia, Sistematización. Keywords: Social management, Sustainability, Timeline, Safeguard, Systematization

    Effects of pitch and musical sounds on body-representations when moving with sound

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    The effects of music on bodily movement and feelings, such as when people are dancing or engaged in physical activity, are well-documented—people may move in response to the sound cues, feel powerful, less tired. How sounds and bodily movements relate to create such effects? Here we deconstruct the problem and investigate how different auditory features affect people’s body-representation and feelings even when paired with the same movement. In three experiments, participants executed a simple arm raise synchronised with changing pitch in simple tones (Experiment 1), rich musical sounds (Experiment 2) and within different frequency ranges (Experiment 3), while we recorded indirect and direct measures on their movement, body-representations and feelings. Changes in pitch influenced people’s general emotional state as well as the various bodily dimensions investigated—movement, proprioceptive awareness and feelings about one’s body and movement. Adding harmonic content amplified the differences between ascending and descending sounds, while shifting the absolute frequency range had a general effect on movement amplitude, bodily feelings and emotional state. These results provide new insights in the role of auditory and musical features in dance and exercise, and have implications for the design of sound-based applications supporting movement expression, physical activity, or rehabilitation

    Estudi computacional de les interaccions moleculars entre l'àcid itacònic i compostos antimalàrics: un pas important per al disseny racional de sistemes d'alliberament controlat de fàrmacs

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    Las interacciones moleculares entre cuatro antimaláricos: cloroquina, primaquina, quinina y amodiaquina, con un dímero del ácido itacónico, fueron estudiadas a través de la teoría del funcional de la densidad usando B3LYP/++6-31G(d,p) y el modelo CPCM para el solvente. Cloroquina, primaquina y quinina presentan interacción apreciable con el dímero del ácido itacónico, con energías de interacción en el rango de -17 hasta -6,7 kcal/mol, de naturaleza exotérmica, a través de un proceso de fisisorción. El valor positivo de la energía de interacción para la amodiaquina sugiere una menor probabilidad de que este sea adsorbido por un dímero de ácido itacónico. Los cálculos NBO y la aplicación de la teoría de perturbación de segundo orden indican transferencia de carga desde los compuestos cloroquina y primaquina. Adicionalmente, los resultados sugieren que las interacciones principales son de naturaleza polar, donde los enlaces de hidrógenos juegan un rol principal. Los resultados encontrados a través del método CPCM indican que los complejos entre el dímero de ácido itacónico con cloroquina y primaquina son bastante estables en disolución acuosa; además presentan valores adecuados de LogP y momento dipolar, indicando alta la interacción con el solvente que permitiría el hinchamiento y la liberación controlada de estos fármacos.The molecular interactions between four widely used antimalaric i.e, chloroquine, primaquine, quinine and amodiaquine, with an itaconic acid dimer as a hydrogel model, have been studied by the mean of the Density Functional Theory calculation in both, vacuum and water environment, using B3LYP/++6-31G(d,p) basis set and PCM model of solvent. Chloroquine, primaquine, and quinine show a suitable interaction with the itaconic acid dimer, with binding energy into the range of -17 to -6.7 kcal/ mol. These values of binding energies suggest the formation of stable and exothermic complexes in the range of physisorption energy. By contrast, the positive value of binding energy for amodiaquine indicates a little chance to be absorbed into the hydrogel polymer. The NBO calculation and the second order perturbation theory indicate a strong charge-transference from chloroquine and primaquine to itaconic acid dimer. In addition, these results suppose the interactions are mainly polar in nature where the hydrogen bond plays a pivotal role in complex stabilization. On the other hand, the CPCM calculations suggest the chloroquine and primaquine complex are stables, with suitable values of both, LogP and dipole momentum implying the swelling of these complex in water and the eventual drugs controlled-delivery from the polymeric matrix

    Aprendizaje del Fibrobroncoscopio del Servicio de Anestesiología del Hospital Universitario de Getafe: Programa de aprendizaje

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    Las complicaciones más severas en Anestesiología son las relacionadas con la Vía Aérea, y una dificultad de intubación o ventilación del paciente originan una gran mórbida/mortalidad. En los últimos años, para mejorar la seguridad del paciente en este campo, ha habido una evolución muy importante en el manejo de la Vía Aérea Difícil (VAD). Las Sociedades internacionales más prestigiosas de este campo aconsejan en sus últimos trabajos y guías (ASA [Sociedad Americana de Vía Aérea Difícil] en el algoritmo del 2013, y la DAS [Difficult Airway Society] en el NAP4 y las guías de 2015….) aconsejan que todos los miembros del servicio de Anestesiología sean capaces de poder realizar una intubación con Fibroscopio (FOB) en paciente despierto cuando se precise. Es decir, en aquellos pacientes que tienen una intubación difícil conocida, y en los que administrarles anestesia general para realizar una intubación, perdiendo la respiración espontanea, supone un riesgo muy importante para ellos

    Dependencia emocional en estudiantes de Medicina

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    Objective: To determine the emotional dependence of students of medicine in a public university. Methods: A cross-sectional study was carried-out applying the 42-item scale of emotional dependence of Ancima, Caballero, Cirilo y Aguirre (2013) with dichotomous responses (yes/no); 332 five-year medical students were selected; a non- probabilistic sample of 303 students was finally recruited. Results: 183 (60.39%) were females: mean age was 24 years; only 2.98% were stables and 90.39% had a tendency for dependence. Conclusions: Five-year medical students had a marked tendency for dependence, especially female students.Objetivos: Identificar la dependencia emocional en los estudiantes de medicina de universidad pública. Material y métodos: Estudio cuantitativo, no experimental, exploratorio, descriptivo, transversal. Se aplicó la escala de dependencia emocional de Ancima, Caballero, Cirilo y Aguirre (2013) integrada por 42 ítems. Las respuestas se establecen dicotómicamente Si o no. La población se conformó por 332 estudiantes de medicina de quinto año de una universidad pública. La escala fue aplicada a 303 estudiantes una muestra no probabilística, por conveniencia. Resultados: De 303 estudiantes, 183 (60,39%) eran del género femenino y 120 (39,60%) masculino, con promedio de edad de 24 años, con una desviación estándar de 1,46. Solo el 2,98% fueron “estables” y el 90,39% con “tendencia a la dependencia”. Conclusiones: Los estudiantes de medicina presentan una marcada tendencia a la dependencia emocional. Siendo las mujeres las más dependientes

    Current Status of the Insecticide Resistance in Aedes aegypti (Diptera: Culicidae) from Mexico

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    The mosquito Aedes aegypti (Diptera: Culicidae) is the primary vector of dengue in Mexico and lately virus Chikungunya, although Aedes albopictus is widely distributed; its role in both diseases’ transmission has not been confirmed. The control of mosquitoes in Mexico includes source reduction consisting in the elimination of containers that are favorable sites for oviposition and development of the aquatic stage. The use of insecticides is to control larvae and adulticides as outdoor ultra-low volume applications and indoor residual spray and more recently impregnated materials. The health department regulates the use of insecticides, and such regulations are revised and adapted over time. Since 1999, the vector control regulations gave preference to the use of pyrethroids, a permethrin-based formulation to control adult forms. This insecticide was used as the only adulticide in Mexico for more than 10 years. The consequences of this actions have evolved in a widespread and strong resistance to other insecticides, mainly pyrethroids. We include in this revision evidence of resistance reported in Ae. aegypti in Mexico

    Wavelength-tunable picosecond pulses from a passively mode-locked figure-eight Erbium-doped fiber laser with a Sagnac fiber filter

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    We experimentally demonstrated a wavelength-tunable passively mode-locked Erbium-doped figure-eight fiber laser. Wide tunability is achieved using a high-birefringence (hi-bi) fiber Sagnac loop. The filter transmission function is controlled by selecting the hi-bi fiber loop length. The output pulses are wavelength tunable over a range from 1525 nm to 1555 nm. The FWHM of the autocorrelation trace is about 3.1 ps and the pulse spectrum has a FWHM of 1.5 nm. The pulse temporal and spectral widths remain constant over the tunable range

    A preliminary overview of skin and skeletal diseases and traumata in small cetaceans from South American waters

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    We succinctly review and document new cases of diseases of the skin and the skeletal system and external traumata in cetaceans from Ecuador, Colombia, Peru, Chile, Argentina, Uruguay, Brazil, and Venezuela. The survey revealed 590 cases diagnosed with a significant pathology, injury or malformation on a total of 7635 specimens of 12 odontocete species examined or observed in 1984-2007. Tattoo skin disease (TSD), lobomycosis-like disease (LLD) and cutaneous diseases of unknown aetiology seem to be emerging in several populations. TSD was confirmed in eight species from the SE Pacific and SW Atlantic. LLD affected only inshore Tursiops truncatus but was found in four tropical countries, namely Colombia, Ecuador, Peru and Brazil. Lobomycosis was confirmed by histology in one male from the Tramandaí estuary, southern Brazil. All LLD-affected specimens were encountered in the vicinity of major ports and cities and a possible association with chemical or organic water pollution is suspected. Whitish velvety cutaneous marks associated with scars occurred in inshore T. truncatus, Sotalia guianensis and Pseudorca crassidens. Large, rounded lesions were seen in a Cephalorhynchus eutropia calf and a C. commersonii. Cutaneous wounds and scars as well as body traumata possibly related to net entanglements and boat collisions were observed in 73 delphinids and Phocoena spinipinnis. Traumatic injuries resulted in the partial or complete amputation and other disfiguring scars of appendages in 17 cases. Fractures of the skull, ribs and vertebrae thought to be caused by fisheries-related interactions or boat collisions were seen in single individuals of Delphinus capensis, Lagenorhynchus obscurus, T. truncatus, S. guianensis and Ziphius cavirostris. Prevalence of osteopathology in small cetaceans from Peru, Brazil and Venezuela ranged widely, from 5.4% to 69.1%. In four species from Peru, lytic cranial lesions were the most frequently observed disease (5.4%-42.9%), followed by hyperostosis and ankylosing spondylitis in offshore (31%, n=42) and inshore (15.4%, n=26) T. truncatus. Fractures and other bone traumata were present in 47.2% of 53 axial skeletons of S. guianensis from the northern Rio de Janeiro state (Brazil) in 1987-1998. A high prevalence (48.4%, n=31) of, apparently congenital, malformations of cervical vertebrae, observed in a 2001-2006 sample, may be explained by a hypothetical genetic bottleneck in this population. Malformations with deficient ossification would clearly increase susceptibility for fractures. This study demonstrates the utility of a continent-wide analysis to discern epizootiological trends more readily than any local study could provide. Secondly, it underscores the need for focussed research on the effects of human activities on the spread of diseases in cetaceans, particularly in near-shore populations that utilize highly degraded coastal habitats

    New record of Aedes Albopictus in a suburban area of Merida, Yucatan, Mexico

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    Along with Aedes aegypti (L.), Aedes albopictus has been implicated as a secondary vector for dengue virus, chikungunya virus, and Zika virus in Latin America. The article covers an entomological survey in 2018, in a suburban area of Merida (the largest and capital city in Yucatan). This is the first report of Ae. albopictus in a suburban area of Merida City. A total of 259 specimens were collected. It is important to consider the ecology of Ae. albopictus alongside that of Ae. aegypti when developing vector/disease control programs
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