Denver’s Mountain Playground : The Denver Mountain Parks, the City Beautiful, and the Rise of Modern Wilderness Recreation in Colorado, 1900-1940

The history of the Denver Mountain Parks exposes the profound connections between city life and scenic preservation, outdoor recreation, and wilderness appreciation during the early twentieth century. By examining the cultural roots of Denver’s mountain parks this study links the conservation and preservation movements of the Progressive Era to specifically urban concerns. Denver’s history highlights the central role that urban reform, urban planning, and municipal politics played in shaping the scenic natural landscape parks of these years. Denver developed its mountain parks at a time of growing federal commitment to resource conservation and the national parks. In Denver, however, these trends were less significant in conceptualizing the mountain parks than the City Beautiful movement. In 1912 a coalition of Denver’s commercial interests persuaded voters to fund municipal development of extra-urban mountain parks. Building upon the popularity of exiting Mayor Robert Speer’s urban beautification program, these advocates extended City Beautiful thinking beyond the bounds of the city proper, applying urban park geographies and ideologies to justify the distant mountain parks and join them to the city. These ideas included the pursuit of tourism, thereby linking City Beautiful thought with the See America First idea and the coincident boom in national tourism. Denver commissioned a mountain park plan from Frederick Law Olmsted, Jr., which provided a template for preserving vast tracts of essentially wild mountain land. Over time, however, Denver’s park planners moved away from Olmsted’s large tracts toward an urban geography of smaller parks. The city created a legal framework that extended its political power into the mountain hinterland, giving Denver the right to buy or condemn land outside its corporate limits, and to develop, police, and manage its mountain parks. Denver developed a range of attractions and amenities in the mountain parks including a game preserve, rustic lodges, and Buffalo Bill’s grave that connected the mountain landscapes with the popular symbolism of the frontier. These images were joined with a wealth of promotional literature that celebrated modernity, especially the technologies that paved the way for new forms of outdoor recreation in nature made accessible by road and car

INSEMINACIÓN ARTIFICIAL ÚNICA ATIEMPO FIJO EN CERDAS

En el sector porcino el uso de la inseminación artificial ha permitido no sólo aumentar los parámetros reproductivo sino también acelerar el progreso genético y mejorar la salud de las cerdas. El reto actual es la reducción del número de inseminaciones por cerda en cada celo de manera que la producción sea más sostenible. Se han estudiado distintas alternativas para conocer el momento exacto en la ovulación con la intención de realizar una sola inseminación artificial. El objetivo de este trabajo ha sido comprobar en una granja comercial la eficiencia y utilidad del uso de una sola inseminación artificial a tiempo fijo usando un agonista de la GnRh, el acetato de buserelina. En ocho bandas consecutivas, se dividieron las cerdas en dos grupos, Control (n=359) y Buserelina (n=325). En el primer grupo se ha utilizado el protocolo habitual de la granja mientras en el segundo tras la aplicación del tratamiento hormonal se ha realizado una sola inseminación. Posteriormente se han registrado y analizado los parámetros productivos y reproductivos. No se han encontrado diferencias significativas en la fertilidad, tasa de parto o fallo reproductivo entre los grupos. Respecto a los lechones nacidos y destetados sólo se han observado diferencias significativas en el número de lechones vivos por cerda parida (p= 0,01) siendo mayor en el grupo Control (14,73 ± 0,61) respecto al grupo Buserelina (14,24 ± 0,52). Por lo tanto, puede ser una técnica útil en granja debido al ahorro tanto en dosis seminales e inseminaciones como en mano de obra, aunque es necesario un adecuado conocimiento y manejo del tratamiento hormonal.<br /

Comment on ‘‘Post-Wildfire Logging Hinders Regeneration and Increases Fire Risk’’

Donato et al. (Brevia, 20 January 2006, p. 352) concluded that logging after wildfire kills natural regeneration and increases fire risk. We argue that their paper lacks adequate context and supporting information to be clearly interpreted by scientists, resource managers, policy-makers, and the public

The Production and Application of Hydrogels for Wound Management: A Review

Wound treatment has increased in importance in the wound care sector due to the pervasiveness of chronic wounds in the high-risk population including, but not limited to, geriatric population, immunocompromised and obese patients. Furthermore, the number of people diagnosed with diabetes is rapidly growing. According to the World Health Organization (WHO), the global diabetic occurrence has increased from 4.7 in 1980 to 8.5 in 2014. As diabetes becomes a common medical condition, it has also become one of the major causes of chronic wounds which require specialised care to address patients’ unique needs. Wound dressings play a vital role in the wound healing process as they protect the wound site from the external environment. They are also capable of interacting with the wound bed in order to facilitate and accelerate the healing process. Advanced dressings such as hydrogels are designed to maintain a moist environment at the site of application and due to high water content are ideal candidates for wound management. Hydrogels can be used for both exudating or dry necrotic wounds. Additionally, hydrogels also demonstrate other unique features such as softness, malleability and biocompatibility. Nowadays, advanced wound care products make up around 7.1 billion of the global market and their production is growing at an annual rate of 8.3 with the market projected to be worth 12.5 billion by 2022. The presented review focuses on novel hydrogel wound dressings, their main characteristics and their wound management applications. It also describes recent methodologies used for their production and the future potential developments

Cuadernos de pedagogía

Resumen tomado de la publicaciónMonográfico con el título: “Los deberes, ¿hay alternativas?"Uno de los retos a los que se enfrenta un centro escolar es decidir qué tareas son las más adecuadas para que contribuyan, real y eficazmente, al aprendizaje de cada uno de sus estudiantes, así como establecer cuándo deben hacerse estos deberes, por qué y con qué fin. En la Sección del Instituto (SINS) Cardener, de Sant Joan de Vilatorrada (Barcelona), trabajan en este desafío.Biblioteca de Educación del Ministerio de Educación, Cultura y Deporte; Calle San Agustín, 5 - 3 planta; 28014 Madrid; Tel. +34917748000; [email protected]

Guix

El artículo nos presenta la participación del IES Santpedor en el Proyecto Educativo Europeo (PEE) promovido y financiado por la Unión Europea. La idea base del proyecto es la construcción de un objeto tecnológico. Además del objeto, se intenta fomentar el conocimiento y uso de las lenguas extranjeras, el conocimiento de otras realidades culturales y la utilización de las tecnologías de la información.CataluñaES