UMA. Potrero de mulas. San Sebastián del Oeste, Jalisco

Las Unidades de Manejo para la Conservación de la Vida Silvestre (UMAs). El presente proyecto reside en el apoyo a la UMA “Potrero de Mulas”, ubicada en el municipio San Sebastián del Oeste del Estado de Jalisco. El objetivo principal de la visita realizada consistió en conocer las condiciones actuales en las que se encontraba la UMA, su funcionamiento, cómo se está manteniendo económicamente y cuáles son sus problemáticas. La UMA anteriormente contaba con recursos económicos que el Gobierno Federal les otorgaba como subsidios que se destinaban para el mantenimiento de la UMA así como para el desarrollo de las actividades ecoturísticas; sin embargo, después de unos años, el Gobierno Federal optó por eliminar este tipo de apoyo, por consiguiente, se retiró el apoyo económica hacia las UMAs. En consecuencia, otro de los objetivos del proyecto es que a partir de la visita de campo a la UMA, y conociendo sus problemáticas, sería enfocar el análisis respecto a la viabilidad de volver a solicitar al gobierno el apoyo económico para este tipo de proyectos.ITESO, A.C

Life-long Programming Implications of Exposure to Tobacco Smoking and Nicotine Before and Soon After Birth: Evidence for Altered Lung Development

Tobacco smoking during pregnancy remains common, especially in indigenous communities, and likely contributes to respiratory illness in exposed offspring. It is now well established that components of tobacco smoke, notably nicotine, can affect multiple organs in the fetus and newborn, potentially with life-long consequences. Recent studies have shown that nicotine can permanently affect the developing lung such that its final structure and function are adversely affected; these changes can increase the risk of respiratory illness and accelerate the decline in lung function with age. In this review we discuss the impact of maternal smoking on the lungs and consider the evidence that smoking can have life-long, programming consequences for exposed offspring. Exposure to maternal tobacco smoking and nicotine intake during pregnancy and lactation changes the genetic program that controls the development and aging of the lungs of the offspring. Changes in the conducting airways and alveoli reduce lung function in exposed offspring, rendering the lungs more susceptible to obstructive lung disease and accelerating lung aging. Although it is generally accepted that prevention of maternal smoking during pregnancy and lactation is essential, current knowledge of the effects of nicotine on lung development does not support the use of nicotine replacement therapy in this group

Scaling slowly rotating asteroids with stellar occultations

Context. As evidenced by recent survey results, the majority of asteroids are slow rotators (spin periods longer than 12 h), but lack spin and shape models because of selection bias. This bias is skewing our overall understanding of the spins, shapes, and sizes of asteroids, as well as of their other properties. Also, diameter determinations for large (>60 km) and medium-sized asteroids (between 30 and 60 km) often vary by over 30% for multiple reasons. Aims. Our long-term project is focused on a few tens of slow rotators with periods of up to 60 h. We aim to obtain their full light curves and reconstruct their spins and shapes. We also precisely scale the models, typically with an accuracy of a few percent. Methods. We used wide sets of dense light curves for spin and shape reconstructions via light-curve inversion. Precisely scaling them with thermal data was not possible here because of poor infrared datasets: large bodies tend to saturate in WISE mission detectors. Therefore, we recently also launched a special campaign among stellar occultation observers, both in order to scale these models and to verify the shape solutions, often allowing us to break the mirror pole ambiguity. Results. The presented scheme resulted in shape models for 16 slow rotators, most of them for the first time. Fitting them to chords from stellar occultation timings resolved previous inconsistencies in size determinations. For around half of the targets, this fitting also allowed us to identify a clearly preferred pole solution from the pair of two mirror pole solutions, thus removing the ambiguity inherent to light-curve inversion. We also address the influence of the uncertainty of the shape models on the derived diameters. Conclusions. Overall, our project has already provided reliable models for around 50 slow rotators. Such well-determined and scaled asteroid shapes will, for example, constitute a solid basis for precise density determinations when coupled with mass information. Spin and shape models in general continue to fill the gaps caused by various biases

Accesso ed esiti occupazionali a breve del dottorato di ricerca in Italia : un'analisi dei dati Istat e Stella

Meanwhile, discover one of the most amazing mourning dress of the exhibit here: https://vimeo.com/20400949