Description of the final instar larva of argia serva hagein selys, 1865 (Odonata coenagrionidae)

The American genus Argia, with more than 100 species described, is the most speciose genus of Odonata in the world. In this contribution, the final stadium larva of Argia serva, the southernmost distributed species of Argia, is described and diagnosed based on reared material from Martín García island, Buenos Aires, Argentina. The larva of this species can be easily separated from the other Argentinean Argia by the following combination of characters: sternum of S8 covered with spines (bare in A. translata); antennal segment 3 longer than 1+2 (equal to or shorter than 1+2 in A. joergenseni and A. jujuya); palpal setae absent (present in A. croceipennis). A key to the known larvae of Argia of the Southern Cone is provided.Fil: del Palacio, Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Avellaneda. Departamento de Ciencias Ambientales; ArgentinaFil: Lozano, Federico. Universidad Nacional de Avellaneda. Departamento de Ciencias Ambientales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Muzón, Javier. Universidad Nacional de Avellaneda. Departamento de Ciencias Ambientales; Argentin

Land, Environmental Externalities and Tourism Development

In a two sectors dynamic model we analyze the process of tourism development based on the accumulation of capital (building of tourism facilities) and the reallocation of land from traditional activities to the tourism sector. The model incorporates the conflict between occupation of the territory by the tourism facilities, other productive activities and availability of cultural, natural and environmental assets that are valued by residents and visitors. We characterize the process of tourism development in two settings: the socially optimal solution and a situation where the costs of tourism expansion are external to the decision makers, where externalities on residents as well as intraindustry externalities are considered. Regarding the optimal solution, we show that it is optimal to limit tourism expansion before it reaches its maximum capacity even in a context where the economic attractiveness of tourism relative to other productive sectors rise continuously. However, in this context and when all the costs of tourism development are externalities the only limit to tourism quantitative expansion is its maximum capacity determined by the availability of land. Finally, we show that excessive environmental degradation from the future generations’ point of view is not a problem of discounting the future but rather a problem of externalities that affects negatively the current and future generations.Intertemporal land allocation, Structural economic change, Tourism industry

Transformaciones comunicativas en el consumo del tráiler cinematográfico en internet

El tráiler es una forma breve publicitaria cuya función principal es anunciar una película. A día de hoy, existen muy pocas invesigaciones académicas dedicadas al estudio del tráiler. El objetivo de este trabajo es estudiar cómo afecta la aparición y desarrollo de internet en la construcción de esta forma publicitaria, analizando especialmente la forma en la que el receptor se aproxima a su consumo (cómo, cuándo y dónde) y qué estrategias comunicativas intervienen en el proceso.A trailer is a brief form of advertisement with the only function of promoting a film. Nowadays, there are very few scholar works dedicated to the study of the trailer. The goal of this paper is to study how the development of internet has affected the construction of this form of advertisement, analyzing specifically the way that the audience consumes it (how, when and where) and what communicative strategies are involved in the process

Calidad acústica en el Aula 1 (Tribunal) del edificio 1C de la UPV

En este Proyecto determinaremos si el Aula 1 (Tribunal) del nuevo edificio de la Escuela Técnica Superior de Ingeniería en Edificación de la Universidad Politécnica de Valencia, es adecuada desde el punto de vista acústico y según la normativa vigente, para el uso de docencia al cual está destinado.Lozano Íñiguez, J. (2012). Calidad acústica en el Aula 1 (Tribunal) del edificio 1C de la UPV. http://hdl.handle.net/10251/15139.Archivo delegad

Bacterias aeróbicas nosocomiales multiresistentes en muestras ambientales: susceptibilidad a los antisépticos y desinfectantes utilizados en salas de operaciones hospitalarias

La infección nosocomial se puede definir como una infección localizada o sistémica, que por lo general se manifiesta a las 48 horas después del ingreso del paciente y no estaba en proceso de incubación. La incidencia de infección nosocomial es elevada, oscilando entre un 5-30% de los pacientes ingresados, siendo más frecuente en pacientes ingresados en unidades de cuidados intensivos. Las infecciones nosocomiales aumentan de forma significativa la morbilidad y la mortalidad, en los últimos años ha aumentado la incidencia por la presencia de microorganismos multiresistentes e infecciones polimicrobianas. Las infecciones nosocomiales más frecuentes son la sepsis, infección respiratoria, infección urinaria e infección de el sitio operatori

Economic regional impacts of water transfers: the role of factor mobility in a case study of the agricultural sector in the Balearic Islands

Using a CGE model for the Balearic Islands, we simulate the effects of an agricultural water market in the farming sector facing reductions in the water endowment. The market lessens the negative effects on farming communities of short-term water restrictions associated with cyclical droughts. However, in scenarios of permanent reductions, such as those envisaged by global warming predictions or those that result from the implementation of the European Water Framework Directive, a water market may aggravate the negative effects of water shortage. Therefore, the paper shows that generalizations cannot be made about the effects of water markets on farming communities.Agricultural and Food Policy, Environmental Economics and Policy, D58, Q1, Q25, R13,