Review: Vidler, Laura L. Performance Reconstruction and Spanish Golden Age Drama: Reviving and Revising the Comedia

Review of Vidler, Laura L. Performance Reconstruction and Spanish Golden Age Drama: Reviving and Revising the Comedia. Palgrave Macmillan, 201

Water quality as a limiting factor: Concepts and applications for the Mid-Ebro valley

The particular characteristics of the soil, the climate and the distrubution of water amongst the different types of use, all result in a specific problem for the management of the water resource in the arid and semi-arid areas of Spain, making it necessary to redefine tha notions of consumption, efficiency of use and water supply in accordance with new criteria that take the different qualities into account. This, in turn, leads to new meanings being given to terms such as scarcity, water deficit, etc. Within this framework, the objetive of the paper is twofold: first, to propose new concepts and measures that include qualitative aspects; secondly, to psesent an empirical approximation of these concepts, based on the water and socio-economic data for tha mid-Ebro Valley region of Northern Spain. Keywords: Water Economics, Water supply, Water management.

Parental perceptions of neighborhood effects in Latino comunas: the script of "the delinquent" in understanding drug use, violence, and social disorganization

OBJECTIVES: To obtain rich information about how adult Latinos living in high-poverty/high-drug use neighborhoods perceive and negotiate their environment. METHODS: In 2008, thirteen adult caregivers in Santiago, Chile were interviewed with open-ended questions to ascertain beliefs about neighborhood effects and drug use. ANALYSIS: Inductive analysis was used to develop the codebook/identify trends. DISCUSSION: Residents externalized their understanding of drug use and misuse by invoking the concept of delinquent youth. A typology of their perceptions is offered. Learning more about residents’ circumstances may help focus on needs-based interventions. More research with Latino neighborhoods is needed for culturally-competent models of interventions.The present study received support from National Hispanic Science Network Fellows Summer grant awarded to the lead author. The study was also partially supported by the National Institutes of Health/National Institute on Drug Abuse (R01:DA021181) and the Vivian A. and James L. Curtis School of Social Work Research and Training Center, University of Michigan. (National Hispanic Science Network; R01:DA021181 - National Institutes of Health/National Institute on Drug Abuse; Vivian A. and James L. Curtis School of Social Work Research and Training Center, University of Michigan

Review: Linda A. Curcio-Nagy. The Great Festivals of Colonial Mexico City: Performing Power and Identity

Review of Linda A. Curcio-Nagy. The Great Festivals of Colonial Mexico City: Performing Power and Identity. 1ª ed. Albuquerque: University of New Mexico Press, 2004. 222 pp

Circular polarized 60 GHz antennas

Many multimedia applications for high speed data wireless transmissions (around Gb/s or multi-Gb/s) are used in indoor systems (<10m). Some examples of them are the Ethernet Gigabit (1.25 Gb/s), the wireless high-speed download and the wireless transfer of high-definition video (2-20Gb/s). These high transmission rates cannot be implemented in the traditional frequency bands dedicated for the typical wireless systems, since they obtain an important degradation of service and the bandwidth is not enough for the data rate. For this reason, the Federal Communications Commission (FCC) has introduced recently 7 GHz of bandwidth, without license, in the band of 60 GHz. It is mainly due to the appearance of the atmospheric attenuation (10 to 15 dB/Km), since the presence of the oxygen affects in a bandwidth of 8 GHz (approximately) over the 60 GHz band; So the band of 60 GHz is not suitable for long distances (more than 2 Km). However, it is possible to dedicate completely in indoor wireless applications (<50m), where the atmospheric attenuation does not have any significant impact. This high bandwidth allows high speeds of data transmission and a new range of ultrahigh rates of the wireless communications systems. In consequence, the wireless highdefinition multimedia interface (wHDMI) and "Kiosk-downloading" are some applications with a high volume of information. It is important to highlight that wHDMI will offer an important improvement in the WLAN incorporated in the systems of portable computer (laptops, PDAs, etc ...). On the other hand, " Kiosk-downloading " is a possible solution to transfer, in a short time, DVD's movies from a server (kiosk) to a portable device such as iPods or PDAs. For example, the download of 120 minutes of a DVD would take 10 minutes with a rate of 54 Mb / s, whereas with this new technology would only take 13 seconds for a 2 Gb / s rate, and for 6 Gb / s rate it would only takes 4 seconds. In spite of the quantity of publications and the interest related to the 60 GHz band, it is possible to observe that the data rates of WLAN and WPAN increase periodically. For example, in 1999 the standard 802.11.b was allowing a maximum speed of 11Mb/s and in 2007 the rate was coming until 300Mb/s through the support to the project 802.11.n. Therefore, in 2011 it is possible to anticipate that a rate of a few Gb/s will be offered. Therefore, in order to satisfy the increasing demand of bandwidth, many enterprises and research institutions are investigating in new technologies to solve or at least to cover it temporally. For example, in March, 2005, the Group of Tasks 3C (TG3c) in IEEE802.15 was formed to coordinate the normalization of the 60 GHz band [12]. In order to contribute something to this investigation topic, this project is dedicated to the study of different antennas capable of working at the 60 GHz band and with the addition value of being circular polarized

Co-Management Strategy for the Sustainable use of Coral Reef Resources in the National Natural Park "Corales del Rosario y San Bernardo" in Colombia

The National Natural Park "Corales del Rosario y San Bernardo", located in the Caribbean Sea, is one of the most important parks in Colombia since it hosts high biological biodiversity, receives more tourists than any other natural park in the country and provides sustenance to several communities settled in and around it. However, lack of governance and incompatibility of incentives among authorities, communities and visitors threaten its conservation and sustainability. Using experimental economic games with fisherman communities, we tested different rules related with the management of natural resources in the protected area. In addition to standard rules of communication and external regulation, we tested a rule called co-management, in which we explored the complementarities between repeated communication and external non-coercive authority intervention. We also tested inter temporal effects where over extraction (by the group) in a round reduces the availability of resource for next round and, in consequence, increases effort and reduces benefits for fishers. Results confirmed the effectiveness of communication and, to some extent, external regulation. More important than that, co-management treatment exhibit no matter the location of the communities with respect to the park- the best results in terms of sustainable use of the resource. Participants incorporated dynamic implications in their decisions when information asymmetries were overcome, through internal communication or external guidance. These results highlight the importance of resource management designs that recognize communities as key actors in decision making for the sustainable use and conservation of common pool resources in protected areas.Resource /Energy Economics and Policy,

Nonconventional Ca(OH) ₂ treatment of bamboo for the reinforcement of cement composites

This study compares the structural and morphological changes in Guadua angustifolia Kunth (GAK) fiber prepared in three different ways (chips, barkless and crushed) when non-conventional alkaline treatment is applied. Moreover, it shows the improvement of mechanical properties of cement composites reinforced with these treated fibers. The three different preparations of Guadua were treated with a saturated solution of calcium hydroxide (5%) at 125 &deg;C and 1.25 kPa for 3 h to remove non-cellulosic compounds. Then, their chemical, morphological, and structural properties were examined. The fibers exhibiting the higher delignification rate were selected to prepare cement composite boards, whose mechanical properties were successively compared with those of composites reinforced with untreated G. angustifolia fibers. The water/cement ratios of the cement mixed with the Ca(OH)2-treated and the untreated fibers were, respectively, around 0.3 and 0.25. The flexural strength and toughness of the two composites were evaluated after 7, 28, and 90 days of curing. The calcium hydroxide treatment showed higher efficiency in removing non-cellulosic materials when performed on crushed bamboo; moreover, the mechanical properties of the composites reinforced with the treated fibers were higher than those mixed with the untreated ones. After 90 days of curing, the flexural strength increased by around 40% and the toughness became three times higher (p &lt; 0.05). The mechanical improvement by the Ca(OH)2 treatment of G. angustifolia fibers demonstrates its potential for the fabrication of cement composites