5 research outputs found
Observational multicentric study on chronic sciatic pain: clinical data from 44 Italian centers
No full textOBJECTIVE: To provide information on the clinical presentation of sciatic neuropathy and its management in a real-world setting, and to analyze the effects of a multimodal approach based on the association of physical and pharmacological therapy.
PATIENTS AND METHODS: A multicentric observational prospective study was conducted in 44 Italian tertiary centers specialized in Physical Medicine and Rehabilitation, Orthopedics, Neurology, Neurosurgery, and Rheumatology. To develop a shared management of LPB with sciatica, a dedicated clinical record was proposed to collect data about diagnosis, treatment, and outcomes. Pain, disability, and quality of life were recorded trough validated questionnaires at baseline and after a two-month follow-up.
RESULTS: 394 patients (age, mean ± SD 55.7 ± 14.1 years, 57.1% females) with chronic LBP and sciatica were enrolled in the study. The characteristics of the selected group showed a certain variability in the clinical presentation. At baseline, patients received several different therapeutic options among physical, pharmacological and neurotrophic treatments. A subgroup of 312 patients was treated with a combination of neurotrophic agents containing alpha-lipoic acid (ALA). After a two-month follow-up, a general improvement in both perceived pain and functional disabilities was observed. A significant improvement (p < 0.001) in the Pain Numeric Rating Scale (NRS), Roland e Morris Disability Questionnaire (RMDQ) and Brief Pain Inventory (BPI) Italian short version was observed.
CONCLUSIONS: Sciatic neuropathy is a multifaceted condition managed by means of a wide spectrum of therapeutic options. The results of this study suggest that a multimodal approach based on the association of ALA with physical and pharmacological therapies can be beneficial in the treatment of LBP with sciatica
THE EUROPEAN HYBRID SPECTROMETER
No full textThe final version of the European hybrid spectrometer (EHS) is described. EHS was used in the NA27 experiment to study charm particles produced in View the MathML source interactions. A rapid cycling, high resolution bubble chamber (LEBC) produced bubbles of 17 μm diameter which were measured with a precision of 2.5 μm. Short-lived charm particles are observed with an efficiency up to 90% (D±). The spectrometer accepts 70% of all particles produced, including approximately 100% of those in the forward hemisphere and the momenta of charged particles are measured to better than 1% over the whole momentum range. The charged particle identification detectors give information on 84% of the spectrometer tracks, half of which obtain unique identification. Two lead glass detectors measure the energy of electromagnetic showers such that the π0 mass distribution has a fwhm of View the MathML source. Hadronic showers are measured with two iron/scintillator calorimeters. The mass resolutions are 3.0, 0.9 and 11 View the MathML source for K0, Λ0 and D− charged particles respectively. The D0 mass is measured to be (1865.1 ± 1.8 ± 0.8) View the MathML source
The reaction e+ e- ---> gamma gamma (gamma) at Z0 energies
No full textThe total and differential cross-sections for the reaction e+e- → γγ(γ) are measured at centre of mass energies around 91 GeV using an integrated luminosity of 4.7 pb-1. The aggreement with QED prediction is good. Consequently there is no evidence for non-standard channels which would have the same experimental signature. The lower limits on the QED cuttoff parameters are Λ+ > 113 GeV and Λ- > 95 GeV. An upper limit on the effective coupling between a possible excited electron and the gamma is derived. At 95% confidence level the branching ratios for Z0 decay into π0γ, ηψ and γγγ are below 1.5 × 10-4, 2.8 × 10-4 and 1.4 × 10-4 respectively.0info:eu-repo/semantics/publishe
Spatial dynamics of lithiation and lithium plating during high-rate operation of graphite electrodes
No full textThe principal inhibitor of fast charging lithium ion cells is the graphite negative electrode, where favorable conditions for lithium plating occur at high charge rates, causing accelerated degradation and safety concerns. The local response of graphite, both at the electrode and particle level, when exposed to fast charging conditions of around 6C is not well understood. Consequently, the conditions that lead to the onset of lithium plating, as well as the local dynamics of lithium plating and stripping, have also remained elusive. Here, we use high-speed (100 Hz) pencil-beam X-ray diffraction to repeatedly raster along the depth of a 101 µm thick graphite electrode in 3 µm steps during fast (up to 6C) charge and discharge conditions. Consecutive depth profiles from separator to current collector were each captured in 0.5 seconds, giving an unprecedented spatial and temporal description of the state of the electrode and graphite's staging dynamics during high rate conditions. The electrode is preferentially activated near the separator, and the non-uniformity increases with rate and is influenced by free-energy barriers between graphite's lithiation stages. The onset of lithium plating and stripping was quantified, occurring only within the first 15 µm from the separator. The presence of lithium plating changed the behavior of the underlying graphite, such as causing co-existence of LiC6 and graphite in the fully discharged state. Finally, the staging behavior of graphite at different rates was quantified, revealing a high dependency on rate and drastic hysteresis between lithiation and delithiation
Identidade profissional de um psicólogo educacional: um estudo de caso no Chile
No full textIntroduction: Educational psychology faces the need to delimit actions and roles, overcome catering for individual differences, and consider the role of school culture. These challenges impact on the identity of educational psychologists, who are currently being hired under the SEP Law in Chile.
Objectives: This study described the identity of a school psychologist and the processes of social interaction that lead her to construct this identity, in the context of a Chilean municipal school with its respective micro-political dynamics within the framework of the SEP Law.
Methodology: A single case study is conducted through in-depth interviews and one focus group, with a psychologist hired with resources from the SEP Law, teachers and students. Categorical content analyses was performed.
Results: There is a tension of the psychologist between being and not being part of the school, as well as peripheral positioning. Her identity is put into tension under a process of negotiation of professional identity.
Conclusions: The results are discussed concerning the intensification and disarticulation of work, the ideological complicity, the clinical role of psychology, and the impact of the SEP Law and the micro politics in this scenario.Introducción: La psicología educacional enfrenta la necesidad de delimitar acciones y roles, superar la atención de las diferencias individuales, y considerar el papel de la cultura escolar. Estos desafíos impactan en la identidad de psicólogas y psicólogos educacionales, actualmente en su mayoría contratados bajo la Ley SEP en Chile.
Objetivos: Esta investigación analizó la identidad de una psicóloga escolar y los procesos de interacción social que la llevan a construir esta identidad, en el contexto de una escuela municipal chilena con sus respectivas dinámicas micro políticas en el marco de la Ley SEP.
Metodología: Se realiza un estudio de caso único a través de entrevistas en profundidad, un grupo focal, con una psicóloga contratada con recursos de la Ley SEP, docentes y estudiantes. Se realiza análisis de contenido categorial.
Resultados: Existe una tensión de la psicóloga entre ser y no ser de la escuela, así como un posicionamiento periférico. Se muestra una identidad tensionada bajo un proceso de negociación de la identidad profesional.
Conclusiones: Los resultados se discuten en torno a la intensificación y desarticulación del trabajo, la complicidad ideológica, el rol clínico de la psicología, y el impacto de la Ley SEP y de la micro política en este escenario.Introdução: A psicologia educacional enfrenta a necessidade de delimitar ações e papéis, superar a atenção das diferenças individuais e definir o papel da cultura escolar. Esses desafios impactam a identidade de psicólogos escolares, atualmente contratados principalmente pela Lei SEP no Chile.
Objetivos: Esta pesquisa analisou a identidade de um psicólogo escolar e os processos de interação social que a levaram a construir essa identidade, no contexto de uma escola municipal chilena com suas respectivas dinâmicas micropolíticas no marco da Lei SEP.
Metodologia: Este é um estudo de caso único com entrevistas em profundidade, um grupo focal, com um psicólogo contratado com recursos da Lei SEP, professores e alunos. Nós fizemos uma análise de conteúdo com categorias.
Resultados: Existe uma tensão do psicólogo entre ser e não ser da escola, bem como um posicionamento periférico. Uma identidade estressada é mostrada sob um processo de negociação de identidade profissional.
Conclusões: Os resultados são discutidos em torno da intensificação e desarticulação do trabalho, da cumplicidade ideológica, do papel clínico da psicologia e do impacto da Lei SEP e da micropolítica nesse cenário
