IRAM-30m large scale survey of 12^{12}CO(2-1) and 13^{13}CO(2-1) emission in the Orion molecular cloud

Using the IRAM 30m telescope we have surveyed a $1\times0.8^{\circ}$ part of the Orion molecular cloud in the $^{12}$CO and $^{13}$CO (2-1) lines with a maximal spatial resolution of $\sim$11" and spectral resolution of $\sim$ 0.4 km~s$^{-1}$. The cloud appears filamentary, clumpy and with a complex kinematical structure. We derive an estimated mass of the cloud of 7700 M$_{\text{Sun}}$ (half of which is found in regions with visual extinctions $A_V$ below $\sim$10) and a dynamical age for the nebula of the order of 0.2 Myrs. The energy balance suggests that magnetic fields play an important role in supporting the cloud, at large and small scales. According to our analysis, the turbulent kinetic energy in the molecular gas due to outflows is comparable to turbulent kinetic energy resulting from the interaction of the cloud with the HII region. This latter feedback appears negative, i.e. the triggering of star formation by the HII region is inefficient in Orion. The reduced data as well as additional products such as the column density map are made available online at http://userpages.irap.omp.eu/~oberne/Olivier_Berne/Data

Toca-Toca: ejemplos sencillos para conceptos complejos en asignaturas de ciencia y tecnología de materiales

En las asignaturas de tipo “Fundamentos de Ciencia de los Materiales” es habitual encontrar que la propuesta de temario es muy extensa y que en ella se introducen un gran número de conceptos, que van desde las bases físico-químicas de la estructura de la materia, hasta el comportamiento macroscópico de la misma, como son los fenómenos de fractura y fallo por corrosión. Es una situación común que el estudiantado considere esta diversidad de contenidos como un problema, atendiendo a la dificultad para asimilar tal cantidad de conceptos, a menudo sin vínculos concretos y reales que permitan afianzar los modelos y asimilar los contenidos con coherencia. La consecuencia general de este fenómeno, es que la asignatura de materiales se pueda percibir como dificultosa y/o aburrida, a lo que se asociaría una baja tasa de superación. En este trabajo se presenta una colección de recursos demostrativos, para su uso y aplicación en las aulas, que faciliten e ilustren algunos conceptos, habituales en asignaturas básicas de materiales. Estos ejemplos tienen la particularidad de ser “próximos”, con objetos cotidianos o no excesivamente “exclusivos”, de modo que el alumnado puede interaccionar con ellos y “tocarlos”, llevando la experiencia sensorial a otros sentidos, además de la vista y el oído, para que permanezcan en la memoria el tiempo suficiente hasta que se puedan vincular con otro concepto o ejemplo

A near zero consumption building as an urban acupuncture for a vertical slum. A case study in the city of Malaga, Spain

Vertical slum is defined as a particularly vulnerable height building, with serious problems of functionality, safety and habitability. Venezuela’s Tower of David is a famous example. Vertical slums are associated with an important level of physical degradation, coupled with a precarious socioeconomic situation of its occupants. Their inability to create a community for proper and mandatory maintenance increases their physical deterioration. The abandonment of the original owners is replaced by a system of occupation and illegal activities. In many cases, with an interest in maintaining the building in a state of precariousness, which annuls any attempt to rehabilitate it Facing this situation, the intervention is proposed through an urban acupuncture project, understood as a project of expropriation and physical rehabilitation of the building, associated to a project of social rehabilitation in a disadvantaged environment. It is about creating a hybrid building associated with four objectives 1- Create a hybrid building with a mixed offer of social and housing services: sheltered housing for seniors, residence and accommodation for young entrepreneurs. The idea of a social condenser is related to studies of the hybrid building such as the Downtown Athletic Club in New York, or the Rokade Tower and Maartenshof residence (Groningen, The Netherlands). 2- Incorporate the sustainability parameters directed to a building almost zero. 3- Incorporate a model of provision of housing services, managed by the municipality, but with the possibility of incorporating NGOs 4- Design a social rehabilitation project that facilitates the creation of a web of social-based companies or cooperatives that fosters entrepreneurship, and that can actively participate in the rehabilitation and maintenance of the neighborhood itself. This paper applies these principles to a building in Malaga as a case study and 10 strategies are developed and analysed in regards to its physical, social and sustainable transformation.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

MMP-2 and sTNF-R1 variability in patients with essential hypertension: 1-year follow-up study

The aim of this study is to analyze MMP-2 and sTNF-R1 variability, potent predictors of cardiovascular events, in stable hypertensive patients during a 12-month followup. 234 asymptomatic patients (age 6 0 ± 1 3 , 136 male) out of 252 patients with essential hypertension were followed up. MMP-2 and sTNF-R1 were measured at baseline and after 12 months (stage I). To compare MMP-2 and sTNF-R1 levels over time interval, we used the statistical method of Bland-Altman. MMP-2 and sTNF-R1 reproducibility was good in our patients for the two intervals with a coefficient of reproducibility of 8.2% and 11.3%, respectively. The percentages of patients within 1.96 × standard deviation of the mean were 93.6% and 92.7%. An elevated coefficient of correlation was obtained for MMP-2, basal versus stage I