113 research outputs found
Territorio y actividad constructora: del "tsunami" a la crisis. Factores explicativos y propuesta de indicadores a escala municipal en Andalucía
El artículo analiza el gran crecimiento de la actividad constructora y urbanizadora en
España en la primera mitad de esta década, seguido de su colapso tras el estallido de la crisis
económica internacional. Se distinguen los rasgos que singularizan por su magnitud el caso
español en el contexto europeo, detallando sus factores causales. Finalmente se estudia en
detalle el ejemplo de la Comunidad Autónoma de Andalucía, seleccionando e interpretando una
serie de indicadores que abordan la temática desde un enfoque territorial a escala municipal.In this paper the marked growth of the construction and urbanization activity in Spain
in the first half of this decade and the current collapse caused by the current international
economic crisis is studied. The causal factors of the particular spanish case in the european context are differentiated. Finally, the case of the Autonomous Region of Andalusia is
studied from a series of indicators that explain the phenomenon from a territorial approach
at municipal level.Ministerio de Ciencia e Innovación de España CSO 2010-2028
Análisis territorial del sector de la construcción y la política de vivienda en Andalucía
Falta resumen y palabras clavesPremio Extraordinario de Doctorado U
Vivienda y estructura del hogar en la provincia de Sevilla. Un análisis desde la perspectiva de género
Las necesidades de vivienda derivadas de los factores demográficos se forman
esencialmente en torno a los procesos de creación y disolución de hogares. Los nuevos
hogares se constituyen fundamentalmente como resultado de la creación de nuevos
núcleos familiares, por emancipación de individuos aislados o por la reforma de los
existentes. En este sentido, la ruptura del concepto de familia tradicional y el desarrollo
de hogares monoparentales con la mujer como cabeza de familia o mediante la
conformación de hogares unipersonales, juega un papel fundamental en la nueva
estructura de hogares, cuya importancia cobra diferente protagonismo en función del
grado de metropolización de las ciudades y su mayor o menor arraigo a una cultura
urbana o rural.
En la presente comunicación se pretende llevar a cabo un análisis estadístico-territorial
de la dinámica de hogares en los municipios de la provincia de Sevilla, haciendo
especial énfasis en el protagonismo de la mujer en el proceso de independencia y
desarrollo de esos nuevos hogares. Se analizarán las dinámicas comunes de
comportamiento según las comarcas de la provincia de Sevilla y se revisarán las
medidas públicas actuales que favorecen el acceso a la vivienda a las mujeres en
función a su rango de edad
Monosized dripping mode of axisymmetric flow focusing
We identify and analyze the perfectly regular dripping mode of flow focusing. This mode occurs within narrow
intervals of injected flow rates and applied pressure drops and leads to homogeneous-size droplets with diameters
similar to or smaller than that of the discharge orifice. The balance between the local acceleration of the fluid
particle and the applied pressure drop yields the scaling law for the droplet diameter. This scaling law is validated
experimentally with excellent accord.Ministerio de Economía, Industria y Competitividad DPI2013-46485Gobierno de Extremadura GR1004
Categorización de municipios mediante técnicas multivariantes. El caso de las áreas rurales de la provincia de Sevilla
MEDIO RURAL Y SOSTENIBILIDAD IV CONGRESO ANDALUZ DE DESARROLLO SOSTENIBLE VIII CONGRESO ANDALUZ DE CIENCIAS AMBIENTALE
Megahertz serial crystallography
The new European X-ray Free-Electron Laser is the first X-ray free-electron laser capable of delivering X-ray pulses with a megahertz inter-pulse spacing, more than four orders of magnitude higher than previously possible. However, to date, it has been unclear whether it would indeed be possible to measure high-quality diffraction data at megahertz pulse repetition rates. Here, we show that high-quality structures can indeed be obtained using currently available operating conditions at the European XFEL. We present two complete data sets, one from the well-known model system lysozyme and the other from a so far unknown complex of a β-lactamase from K. pneumoniae involved in antibiotic resistance. This result opens up megahertz serial femtosecond crystallography (SFX) as a tool for reliable structure determination, substrate screening and the efficient measurement of the evolution and dynamics of molecular structures using megahertz repetition rate pulses available at this new class of X-ray laser source
Rapid sample delivery for megahertz serial crystallography at X-ray FELs
Liquid microjets are a common means of delivering protein crystals to the focus
of X-ray free-electron lasers (FELs) for serial femtosecond crystallography
measurements. The high X-ray intensity in the focus initiates an explosion of the
microjet and sample. With the advent of X-ray FELs with megahertz rates, the
typical velocities of these jets must be increased significantly in order to
replenish the damaged material in time for the subsequent measurement with
the next X-ray pulse. This work reports the results of a megahertz serial
diffraction experiment at the FLASH FEL facility using 4.3 nm radiation. The
operation of gas-dynamic nozzles that produce liquid microjets with velocities
greater than 80 m s1 was demonstrated. Furthermore, this article provides
optical images of X-ray-induced explosions together with Bragg diffraction from
protein microcrystals exposed to trains of X-ray pulses repeating at rates of up
to 4.5 MHz. The results indicate the feasibility for megahertz serial crystallography measurements with hard X-rays and give guidance for the design of
such experiments.Unión Europea 7PM / 2007-2013Consejo de Investigación de Australia DP170100131Ministerio de Economía, Industria y Competitividad DPI2016-78887-C3-1-RNational Science Foundation "BioXFEL" (1231306
Evaluating the psychometric properties of the iconographical falls efficacy scale (ICON-FES)
OBJECTIVE: This study aims to analyze the construct and content validity of the Iconographical Falls Efficacy Scale (Icon-FES) in order to measure the fear of falling in community-dwelling older adults. METHODS: The Icon-FES was applied to 333 older adults. An exploratory factor analysis was performed to assess internal consistency. Item response theory (IRT) and confirmatory factor analysis (CFA) were used to evaluate the consistency of the questionnaire and whether it corresponded satisfactorily to the construct ‘‘concern about falling.’’ Concurrent validity with the Falls Efficacy Scale-International (FES-I) and convergent validity with the Senior Fitness Test (SFT) were also assessed. Receiving operator characteristic (ROC) curves were used to determine the sensitivity and specificity. RESULTS: The structural model of the 30-item and 10-item Icon-FES showed some theoretical fragility. The final model of the new short version of the Icon-FES consisted of 13 items, yielding a theoretically satisfactory structural model. Validity analyses indicated that the 13-item Icon-FES had a moderate relationship with the SFT, a strong relationship with the FES-I, and good sensitivity and specificity for a history of falls. CONCLUSION: The 13-item Icon-FES has excellent psychometric properties for measuring fear of falling in community-dwelling older adults. It can be recommended as a screening tool for fear of falling for both research and clinical purposes
- …