El modelo de microcrédito en la región semidesértica de Querétaro

En México coexisten regiones con diversas condiciones climáticas, geográficas, demográficas, culturales y económicas que influyen en la calidad de vida de sus habitantes. Tal es el caso de la región semidesértica de Querétaro, donde la condición de pobreza de sus habitantes se acentúa por las características de la zona donde viven y por aspectos culturales. Ante ello, los diferentes niveles de gobierno y algunas organizaciones civiles han buscado formas de apoyo que mitiguen el nivel de pobreza y eleven la calidad de vida de la comunidad. Una de ellas ha sido apoyar el desarrollo de las actividades productivas de la región mediante el financiamiento, la capacitación, la asesoría y el seguimiento. En este contexto, se plantea la siguiente pregunta: ¿Cuál es el modelo en el otorgamiento de créditos a pequeña escala de una Sociedad de Solidaridad Social ubicada en la región semidesértica del Estado de Querétaro cuyo objetivo es ayudar a mejorar las condiciones de vida de una comunidad?In Mexico coexisting regions with different climate, geography, demography, culture and economy. These aspects have influence in the quality of life of its inhabitants as in the case of the semi-desert region of Querétaro, where the condition of poverty of its inhabitants is accentuated by the characteristics of their area and cultural aspects. In response, the different levels of government and civil organizations have sought ways to support those people and raise the quality of life of the community. One of them has been supporting the development of productive activities in the region through funding, training, advice and monitoring. In this context, the following question arises: What is the model in lending to small scale of a Social Solidarity Society located in the semi-desert region in the Querétaro State whose aim is to help improve the living conditions of a community

Effect of Acid-Hydrolyzed Thermoplastic Starch on the Mechanical, Thermal and Morphological Properties of Polyethylene Based Composites

The effect of the addition of hydrolyzed thermoplastic maize starch on the physico mechanical properties of low-density polyethylene (LDPE)-based composites was studied. Acid-hydrolyzed native starch was thermoplasticized using 15 and 30% glycerol in weight relative to starch, after which the LDPE/thermoplastic starch (TPS) composites were prepared at TPS concentrations of 10, 25, and 50%. According to the results of Raman spectroscopy, the appearance of a new band at 756 cm-1 was observed, and it was attributed to the hydrolysis process and associated with the C-C-O vibrational modes of the glycosidic bond. The addition of both native and polyethylene hydrolyzed TPS reduced the Young's modulus of the composites; but the reduction was greater for those containing native starch. Both the maximum stress and deformation decreased to a greater degree for the composites with hydrolyzed TPS. The composites containing TPS prepared with 15% glycerol exhibited a higher Young's modulus compared to those with LDPE, although they exhibited fragile behavior. The degree of matrix crystallinity increased with the addition of TPS and showed the largest increase when TPS 50% hydrolyzed by weight was added, showing an increase of 35%. It was observed that the size of the TPS particles, both native and hydrolyzed, increased in size as the concentration of TPS in the matrix increased. The size of the hydrolyzed TPS particles was greater than that of the native TPS particles, and in the case the of the hydrolyzed TPS particles, some exhibited an ellipsoidal and/or fibrillar morphology

Lo glocal y el turismo. Nuevos paradigmas de interpretación.

El estudio del turismo se realiza desde múltiples escalas y enfoques, este libro aborda muchos temas que es necesario discutir desde diversas perspectivas; es el caso de la reflexión sobre la propia disciplina y sus conceptos, así como los asuntos específicos referidos al impacto territorial, los tipos de turismo, las cuestiones ambientales, el tema de la pobreza, la competitividad, las políticas públicas, el papel de las universidades, las áreas naturales protegidas, la sustentabilidad, la cultura, el desarrollo, la seguridad, todos temas centrales documentados y expuestos con originalidad y dominio del asunto. Lo multiescalar es básico para la comprensión del sistema turístico, sistema formado de procesos globales, regionales y locales. El eje de discusión del libro es lo glocal, esa interacción entre lo nacional y local con lo global

Evidence of spatial clustering of childhood acute lymphoblastic leukemia cases in Greater Mexico City: report from the Mexican Inter-Institutional Group for the identification of the causes of childhood leukemia

BackgroundA heterogeneous geographic distribution of childhood acute lymphoblastic leukemia (ALL) cases has been described, possibly, related to the presence of different environmental factors. The aim of the present study was to explore the geographical distribution of childhood ALL cases in Greater Mexico City (GMC).MethodsA population-based case-control study was conducted. Children <18 years old, newly diagnosed with ALL and residents of GMC were included. Controls were patients without leukemia recruited from second-level public hospitals, frequency-matched by sex, age, and health institution with the cases. The residence address where the patients lived during the last year before diagnosis (cases) or the interview (controls) was used for geolocation. Kulldorff’s spatial scan statistic was used to detect spatial clusters (SCs). Relative risks (RR), associated p-value and number of cases included for each cluster were obtained.ResultsA total of 1054 cases with ALL were analyzed. Of these, 408 (38.7%) were distributed across eight SCs detected. A relative risk of 1.61 (p<0.0001) was observed for the main cluster. Similar results were noted for the remaining seven ones. Additionally, a proximity between SCs, electrical installations and petrochemical facilities was observed.ConclusionsThe identification of SCs in certain regions of GMC suggest the possible role of environmental factors in the etiology of childhood ALL

Diversidad y distribución de Fauna Estigobionte en la Península de Yucatán

<p>La fauna estigobiente es el habitante de los ecosistemas subterráneos único y en su mayoría endémico de México, sin embargo, son especies susceptibles a las presiones antrópicas y al cambio climático, es por eso la urgencia del estudio de su distribución que nos abra las puertas a un mayor conocimiento del ecosistema.</p><p>Los autores agradecemos el financiamiento PAPIIT IN222716, DGAPA-PAPIIT 2019 – IN228319 otorgado a NS y Tsonot otorgados a NS. IT agradece la beca de CONAHCYT para estudios de posgrado, así mismo los autores agradecemos el apoyo de Angélica de la Cruz, Quetzalli Hernandez, Alberto Guerra, Hugo Salgado.</p&gt

Clústeres industriales: un mapeo de revisión científica

Objective. This research aimed to carry out a scientific mapping to identify the knowledge currently emerging regarding the agglomerations of companies and institutions called Industrial Clusters through a literature review of theoretical foundations and existing empirical research. Design/Methodology/Approach. Bibliometric techniques have been used for this research work, in addition to other techniques, such as scientific mapping approaches and performance analysis based on the h-index and joint word analysis. The SciMAT software was used to analyze scientific maps due to its visualization and duplication process, which are based on thematic areas and strategic diagrams. The bibliometric methodology comprises four phases: 1. Location of research topics; 2. Visualization of thematic network and research topics; Findings of thematic areas; and 4. Performance analysis. Results/Discussion. From 2005 to 2011, the strategic diagram and the performance indicators identified eighteen related research topics. Sixteen research topics were identified from 2012 to 2016. Finally, from 2017 to 2020, fourteen research topics were identified. Conclusions. We consider that the central theme of this study (Industrial Clusters) represents a niche for research and the generation of knowledge in areas of expertise such as Engineering, Environmental Science, Business, Management and Accounting, Computer Science, Earth and Planetary Sciences, and Social Sciences, among others. Likewise, the research topics within these thematic areas considered necessary for their contribution to the growth of the field are Mining-Industry, International-Organization, Wind-Power, Emission-Control, Manufacturing-Sector, Government-Relations, Regional-Authorities, and Economical -And-Social-Effects. Originality/Value: This work analyzes the current bibliographic production of Industrial Clusters, which opens a range for new research.Objetivo. La presente investigación tiene como objetivo identificar el conocimiento sobre las aglomeraciones de empresas e instituciones, denominado Clústeres Industriales. Diseño/Metodología/Alcance. Se utilizaron técnicas bibliométricas como el mapeo científico, la cual se combinó con el análisis de desempeño a partir del índice H y el análisis de palabras conjuntas. Se utilizó el software SciMAT para el análisis de mapas científicos. La metodología bibliométrica utilizada se conformó por cuatro fases de análisis: 1. Localización de temas de investigación; 2. Visualización de red temática y temas de investigación; 3. Hallazgos de áreas temáticas; y 4. Análisis de rendimiento. Resultados/Discusión. Los resultados se analizaron en tres periodos. Dentro del periodo 2005-2011 se identificaron dieciocho temas de investigación. Dentro del periodo 2012-2016 se identificaron dieciséis temas de investigación y, en el periodo 2017-2020 se identificaron catorce. Conclusiones. La temática Clústeres Industriales representa un nicho para la investigación y la generación de conocimiento en áreas de conocimiento como la ingeniería, ciencia medioambiental, negocios, gestión y contabilidad, ciencias de la computación, ciencias de la tierra y planetaria, ciencias sociales, entre otras. Los temas de investigación más importantes debido a su contribución al crecimiento del campo están relacionados con la minería industrial, organización internacional, energía eólica, control de emisiones, sector industrial, relaciones gubernamentales, autoridades regionales, y efectos económico-social. Originalidad/Valor: El presente trabajo aporta un estudio bibliométrico que analiza la producción bibliográfica actual sobre Clústeres Industriales, el cual abre un abanico para nuevas investigaciones

Deficiency in the Essential Amino Acids l-Isoleucine, l-Leucine and l-Histidine and Clinical Measures as Predictors of Moderate Depression in Elderly Women: A Discriminant Analysis Study

Increases in depression are common in some elderly women. Elderly women often show moderate depressive symptoms, while others display minimal depressive symptoms. These discrepancies have produced contradictory and inconclusive outcomes, which have not been explained entirely by deficits in neurotransmitter precursors. Deficiency in some amino acids have been implicated in major depression, but its role in non-clinical elderly women is not well known. An analysis of essential amino acids, depression and the use of discriminant analysis can help to clarify the variation in depressive symptoms exhibited by some elderly women. The aim was to investigate the relationship of essential amino acids with affective, cognitive and comorbidity measures in elderly women without major depression nor severe mood disorders or psychosis, specifically thirty-six with moderate depressive symptoms and seventy-one with minimal depressive symptoms. The plasma concentrations of nineteen amino acids, Beck Depression Inventory (BDI) scores, Geriatric Depression Scale (GDS) scores, global cognitive scores and comorbidities were submitted to stepwise discriminant analysis to identify predictor variables. Seven predictors arose as important for belong to the group based on amino acid concentrations, with the moderate depressive symptoms group characterized by higher BDI, GDS and cognitive scores; fewer comorbidities; and lower levels of l-histidine, l-isoleucine and l-leucine. These findings suggest that elderly women classified as having moderate depressive symptoms displayed a deficiency in essential amino acids involved in metabolism, protein synthesis, inflammation and neurotransmission

A high-fat diet decreases GABA concentration in the frontal cortex and hippocampus of rats

BACKGROUND: It has been proposed that the γ-aminobutyric acid (GABA) plays a key role in the regulation of food intake and body weight by controlling the excitability, plasticity and the synchronization of neuronal activity in the frontal cortex (FC). It has been also proposed that the high-fat diet (HFD) could disturb the metabolism of glutamate and consequently the GABA levels, but the mechanism is not yet clearly understood. Therefore, the aim of this study was to investigate the effect of a HFD on the GABA levels in the FC and hippocampus of rats RESULTS: The HFD significantly increased weight gain and blood glucose levels, whereas decreased the GABA levels in the FC and hippocampus compared with standard diet-fed rats CONCLUSIONS: HFD decreases GABA levels in the FC and hippocampus of rat, which likely disrupts the GABAergic inhibitory processes, underlying feeding behavior

C. Dolores Josefina De la Peña Sotelo “La Herencia de la Abuela”

Contrato de Asistencia Técnic

Ingenio Central Motzorongo S.A. de C.V.

Especifico de colaboració