Verification of the Influence of Processing History through Comparing High-Speed Melt Spinning Behavior of Virgin and Recycled Polypropylene.

A 'model' material of recycled polypropylene (PP) was prepared through the injection molding process, and the effect of processing history on the polymer characteristics was investigated through the high-speed melt spinning of virgin and recycled PP. On-line measurement of the thinning behavior of the spin-line revealed the downstream shift of solidification point for the recycled PP at the take-up velocity of 1.0 km/min, indicating the suppression of flow-induced crystallization. The difference was not clear at higher take-up velocities of up to 5 km/min. For any identical take-up velocity, no clear difference in the stress-strain curves and birefringence of the fibers from virgin and recycled PP could be observed, whereas the detailed investigation on the variation of relative amount of c-axis and a*-axis oriented crystals in the fibers prepared at varied take-up velocities suggested the deterioration of flow-induced crystallization at 1.0 km/min. It was speculated that the processing history induced the lowering of the entanglement density, which affected the melt spinning and crystallization behavior. An undistinguishable difference between the virgin and recycled PP at increased take-up velocities suggested the existence of an optimum elongational strain rate for the detection of the different states of molecular entanglement.

Use of the National Early Warning Score in community nursing: a scoping review.

People in the UK are living longer and with multi-morbidities, increasing the size, complexity and acuity of Community Nursing caseloads. Nurses visiting infrequently and inconsistently on a task-focused basis need an objective method by which to identify / quantify physical deterioration for early treatment avoiding crisis and hospital admission. The National Early Warning Score (NEWS), is the most recognised tool for identification of deterioration in acute settings but is not validated for community use. Using published frameworks for scoping review and evaluation, this study aims to explore the current evidence for use of NEWS in community settings. Although there is work to be done, particularly in terms of frequency of scoring and response, this study identifies benefits in communication and prioritisation of care as well as sensitivity, particularly in predicting poor outcomes. The identified barriers to use include integration into practice and perceived dissonance with clinical judgement.

Nanotechnology in Cement-Based Materials: A Review of Durability, Modeling, and Advanced Characterization.

In the context of increasing applications of various nanomaterials in construction, this work reviews the renewed knowledge of nanotechnology in cement-based materials, focusing on the relevant papers published over the last decade. The addition of nanomaterials in cement-based materials, associated with their dispersion in cement composites, is explored to evaluate their effects on the resistance of cement-based materials to physical deteriorations, chemical deteriorations, and rebar corrosion. This review also examines the proposed nanoscale modeling of interactions between admixed nanomaterials and cement hydration products. At last, the recent progress of advanced characterization that employs techniques to characterize the properties of cement-based materials at the nanoscale is summarized.

Assessing Quality of Life Dimensions in Deteriorated Inner Areas: A case from Javadieh Neighborhood in Tehran Metropolis.

Quality of life is a noticeable concept in urban deteriorated areas where people suffer from multidimensional and complex problems. According to Tehran Renovation Organization (TRO), a deteriorated area is defined just by three physical indicators of fine grain, lack of permeability and lack of durability. But deteriorated areas suffer from other physical as well as socio economic problems which need to be considered in planning processes. Consequently, assessing the QOL in deteriorated inner areas is the main purpose of this paper to survey the overall life satisfaction, to extract main and different aspects of QOL and to determine the extent that overall life satisfaction is explained by different components of life. Javadieh neighbourhood, located in Tehran metropolis, one of the most deteriorated neighbourhoods in the city has been chosen as a case for this study. Forty nine indicators which cover different dimensions of quality of life have been selected through literature review. Multi-stage sampling technique for sampling has been applied. In first stage by application of Cochran sampling method, the required sample size has been determined. Then by use of systematic sampling method, questionnaires have been distributed among the residents of the neighbourhood. After data collection, a confirmatory factors analysis indentified 11 factors as identical components of QOL. A stepwise regression is performed to investigate the overall life satisfaction and the extent that QOL is determined by identified domains. Results show that traffic, mobility, housing and infrastructure are the most important aspects of QOL which affect the overall life satisfaction of the residents of the surveyed deteriorated neighbourhood. Also a negative relationship was found between overall satisfaction and private life. The findings of the study also show that the three physical indicators used by the TRO for identifying the deteriorated areas are not adequate to address the deterioration issues. Other physical and socio economic aspects which are incorporated with different QOL dimensions also affect the overall life satisfaction, which have to be addressed in planning and policy making to upgrade quality of life for people in deteriorated neighbourhoods.

Plan de acción para la preservación documental en la biblioteca del Policlínico Norte del municipio Florida, Camagüey / Action Plan for document preservation at the library of the North Polyclinic in Florida, Camaguey

Objetivo: elaborar un plan de acción que contribuya a la preservación documental en la biblioteca del Policlínico Norte, de Florida, en Camagüey. Métodos: se realizó un estudio de evaluación durante los meses de marzo a junio de 2012. Se aplicó el método de análisis documental a una muestra de 325 documentos monográficos, con el propósito de identificar el grado de deterioro físico de la colección. Resultados: la observación permitió diagnosticar las condiciones de almacenamiento. Se aplicó también una matriz DAFO como instrumento gerencial. El fondo bibliográfico mostró elevados niveles de deterioro. Las condiciones de almacenamiento no propiciaban la preservación documental. Conclusiones: Se constató el predominio de las debilidades sobre las fortalezas, así como de las amenazas sobre las oportunidades, lo que ubica a la unidad en el cuarto cuadrante de la matriz. De acuerdo con esto, se propone un conjunto de acciones que eviten el incremento del deterioro(AU)

Objective: to develop an action plan that contributes to the documentary preservation at the Library of North Polyclinic in Florida, Camagüey. Methods: an evaluation study was conducted from March to June 2012. The method of document analysis to a sample of 325 case records was applied in order to identify the degree of physical deterioration of the collection. The observation led to the diagnosis of storage conditions. A SWOT matrix was also applied as a management tool. Results: the bibliographic showed high levels of impairment. Storage conditions were not conducive to documentary preservation. The predominance of the weaknesses of the strengths was found, as well as threats of the opportunities, which placed the unit in the fourth quadrant of the matrix. Accordingly a set of actions that prevent increased deterioration is proposed. The bibliographic showed high levels of impairment. Storage conditions were not conducive to preservation documentary. Conclusions: the predominance of weaknesses over strengths was found, as well as threats over opportunities, which places this unit in the fourth quadrant of the matrix. Accordingly a set of preventing against increased deterioration is proposed(AU)

Plan de acción para la preservación documental en la biblioteca del Policlínico Norte del municipio Florida, Camagüey / Action Plan for document preservation at the library of the North Polyclinic in Florida, Camaguey

Objetivo: elaborar un plan de acción que contribuya a la preservación documental en la biblioteca del Policlínico Norte, de Florida, en Camagüey. Métodos: se realizó un estudio de evaluación durante los meses de marzo a junio de 2012. Se aplicó el método de análisis documental a una muestra de 325 documentos monográficos, con el propósito de identificar el grado de deterioro físico de la colección. Resultados: la observación permitió diagnosticar las condiciones de almacenamiento. Se aplicó también una matriz DAFO como instrumento gerencial. El fondo bibliográfico mostró elevados niveles de deterioro. Las condiciones de almacenamiento no propiciaban la preservación documental. Conclusiones: Se constató el predominio de las debilidades sobre las fortalezas, así como de las amenazas sobre las oportunidades, lo que ubica a la unidad en el cuarto cuadrante de la matriz. De acuerdo con esto, se propone un conjunto de acciones que eviten el incremento del deterioro

Objective: to develop an action plan that contributes to the documentary preservation at the Library of North Polyclinic in Florida, Camagüey. Methods: an evaluation study was conducted from March to June 2012. The method of document analysis to a sample of 325 case records was applied in order to identify the degree of physical deterioration of the collection. The observation led to the diagnosis of storage conditions. A SWOT matrix was also applied as a management tool. Results: the bibliographic showed high levels of impairment. Storage conditions were not conducive to documentary preservation. The predominance of the weaknesses of the strengths was found, as well as threats of the opportunities, which placed the unit in the fourth quadrant of the matrix. Accordingly a set of actions that prevent increased deterioration is proposed. The bibliographic showed high levels of impairment. Storage conditions were not conducive to preservation documentary. Conclusions: the predominance of weaknesses over strengths was found, as well as threats over opportunities, which places this unit in the fourth quadrant of the matrix. Accordingly a set of preventing against increased deterioration is proposed