Study of e+e−→ppˉe^+e^- \rightarrow p\bar{p} in the vicinity of ψ(3770)\psi(3770)

Using 2917 $\rm{pb}^{-1}$ of data accumulated at 3.773~$\rm{GeV}$, 44.5~$\rm{pb}^{-1}$ of data accumulated at 3.65~$\rm{GeV}$ and data accumulated during a $\psi(3770)$ line-shape scan with the BESIII detector, the reaction $e^+e^-\rightarrow p\bar{p}$ is studied considering a possible interference between resonant and continuum amplitudes. The cross section of $e^+e^-\rightarrow\psi(3770)\rightarrow p\bar{p}$, $\sigma(e^+e^-\rightarrow\psi(3770)\rightarrow p\bar{p})$, is found to have two solutions, determined to be ($0.059\pm0.032\pm0.012$) pb with the phase angle $\phi = (255.8\pm37.9\pm4.8)^\circ$ ($<$0.11 pb at the 90% confidence level), or $\sigma(e^+e^-\rightarrow\psi(3770)\rightarrow p\bar{p}) = (2.57\pm0.12\pm0.12$) pb with $\phi = (266.9\pm6.1\pm0.9)^\circ$ both of which agree with a destructive interference. Using the obtained cross section of $\psi(3770)\rightarrow p\bar{p}$, the cross section of $p\bar{p}\rightarrow \psi(3770)$, which is useful information for the future PANDA experiment, is estimated to be either ($9.8\pm5.7$) nb ($<17.2$ nb at 90% C.L.) or $(425.6\pm42.9)$ nb

Ludwik Fleck ja lääketieteellisen ajattelutavan analyysi

Melt quenched high pressure die casting (MQ-HPDC) is a new die casting process developed recently for improving the casting quality of the conventional high pressure die casting (HPDC) process. In the MQ-HPDC process, an alloy melt with a specified dose and superheat is quenched by directly pouring the alloy melt into a preheated metallic container. The thermal mass and preheating temperature of the container is selected so that the alloy melt is quenched just below the alloy liquidus and heterogeneous nucleation takes place during the melt quenching. The quenched alloy melt is then fed immediately into the shot sleeve for component casting. In this paper we present the MQ-HPDC process and the resultant microstructures and mechanical properties of a MQ-HPDC A356 alloy

Análisis del tratamiento para drogodependencias en dos instituciones de Medellín. Integración de elementos esenciales de la clínica y prácticas basadas en evidencia

Se describen y analizan los principales factores que inciden en la eficacia terapéutica del tratamiento de las drogodependencias en dos instituciones en Medellín-Colombia y su relación con los protocolos de atención clínica construidos a partir de los modelos conocidos como Práctica Basada en Evidencia (PBE) y concretamente, Psicología Clínica Basada en la Evidencia (PsClBE). El diseño metodológico fue cualitativo, se recopilaron los datos mediante la técnica de entrevistas semiestructuradas a cuatro psicólogos clínicos y ocho pacientes de estas instituciones (una de modelo clínico y la otra de comunidad terapéutica). El paradigma que se implementó para procesar los datos fue el interpretativo y el análisis de datos incluyó la triangulación a través del software ATLAS.ti7, emergiendo siete categorías de análisis. Los resultados indican que un adecuado uso; flexible y contextualizado de los manuales, guías y protocolos clínicos permite reconocer la subjetividad y la importancia de la empatía, la actitud clínica, entre otros factores que ayudan a establecer vínculos terapéuticos de cooperación que facilitan la realización de actividades de evaluación, diagnóstico e intervención, y con ello el logro de objetivos propuestos por los psicólogos clínicos que laboran en estas instituciones

Samudayik Shakti: working-class feminism and social organisation in Subhash Camp, New Delhi

This article illustrates the intersections between architecture and agency in Subhash Camp, a squatter settlement in New Delhi, by ‘situating activism in place’. It highlights the significance of place in social action by examining the architecture of everyday places- the house, the street and the square - as the sites of both individual transformations and collective consciousness. Through observations of the activities of and interviews with members of Samudayik Shakti, a women’s organisation and a men’s panchayat, this article highlights a number of related processes in Subhash Camp: how different women experienced different places through everyday spatial practices; how the spatial practices in these places were shaped by different social structures at different scales, from the family to the state; how the architecture of these places was significant both as sites of control and of emancipation of women’s bodies; and how this dynamic contributed to the making of social action in Subhash Camp