Suchergebnisse

Aufgrund der erschwerten Zugänglichkeit der Schleifschneckenflanke und der veränderlichen Kontaktbedingungen beim kontinuierlichen Wälzschleifen wurden in bisherigen Arbeiten oftmals die Durchdringungsgrößen zwischen Werkzeug und Werkstück zur Beschreibung oder Modellierung des Prozesses herangezogen. Mit der am Werkzeugmaschinenlabor (WZL) entwickelten Methodik kann in Zukunft auch die Topographie der Schleifschnecke durch Kennwerte beschrieben und somit in Modellen, zum Beispiel zur Vorhersage der Kraft oder des Verschleißes, berücksichtigt werden.
 
Due to the difficult accessibility of the grinding worm flank and the variable contact conditions of continuous generating gear grinding, the undeformed chip geometry has often been used in scientific investigations to describe or model the process. With the new methodology developed at the Machine Tool Laboratory (WZL), the topography of the grinding worm can be described with characteristic values and thus can be taken into account in models, e.g. for prediction of force or tool wear.

A Duarte-de-Araújo,1–3 P Teixeira,1,2 V Hespanhol,4,5 J Correia-de-Sousa1,2,61Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; 2ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal; 3Respiratory Department, H. Sª Oliveira, Guimarães, Portugal; 4Department of Pneumology, Centro Hospitalar de S. João, Porto, Portugal; 5Faculty of Medicine (FMUP), University of Porto, Porto, Portugal; 6Horizonte Family Health Unit, Matosinhos, PortugalBackground and objectives: Inhalers mishandling remain an important clinical issue worldwide. The aim of this study was to evaluate inhalation technique in stable COPD out-patients. The variables under study were type of inhaler device (ID), patients' preference for an inhaler, number of IDs used by each patient, beliefs about inhaler medication and some demographic, clinical and functional patients' characteristics. We aim to assess how they are related to inhalation technique.Methods: A cross-sectional study was conducted in a hospital outpatient respiratory care. COPD patients over 40 years old, diagnosed according to GOLD criteria, and using IDs were included consecutively. The Beliefs about Medicines Questionnaire (BMQ), a demographic and a clinical survey were applied. The number of IDs used by each patient and the patients' preference for some IDs were recorded. Patients were asked to demonstrate the use of their prescribed inhalation devices, and inhaler technique was assessed by using previously defined checklists, including essential steps and critical errors. A statistics analysis was then performed.Results: We studied 300 subjects performing a total of 521 inhalation manoeuvers with 10 different IDs. At least one step incorrectly performed was found in 48.2% of demonstrations and in 29.9% critical errors were observed. Misuse was related to priming/loading in 6.9%, to inhalation manoeuver in 13.1% and to both in 10%. There was a statistically significant association between critical errors and type of ID (P<0.001). No significant relationship was found between correct performance of key manoeuvers and patients' preference or number of inhalers used per patient. Misuse due to critical errors was observed in 39.3% of patients and was positively related to female gender, age ≥65, lower education level and lower socioeconomic status (higher Graffar classification score), but not to patients' clinical or functional characteristics. In the sub-group of patients presenting critical errors when using IDs, there was a statistically significant inverse association between BMQ Necessity score and number of critical errors.Conclusions: Inhalers mishandling remains disappointingly common. A good inhalation technique depends on the type of ID, and failure of inhalation manoeuver was the main cause of ID misuse. It was not associated to multiple inhalers' use nor to patient's preference, but to the patient's beliefs about the necessity to use them. Elderly patients, women and those with lower education level or lower socioeconomic status demonstrate a worse inhalation technique.Keywords: COPD; Inhalation technique; Inhaler devices

Abstract. This research paper presents the outcomes of Work Package 5 (socio-economical vulnerability assessment and community-based disaster risk reduction) of the MIAVITA (MItigate and Assess risk from Volcanic Impact on Terrain and human Activities) research programme conducted on Fogo Volcano, Cape Verde. The study lasted for almost 3 years (May 2010 to January 2012), of which most of the time was spent in the village of Chã das Caldeiras, situated within the 9 km wide caldera of the volcano inside Fogo Natural Park. The objectives of the programme included assessment of the vulnerability of the community at risk in terms of livelihoods, access to resources, and power relations between the local people and the different public and private institutions. These are important factors that need to be investigated in order to understand the root causes of vulnerability of the local people. This case study shows that the voluntary exposure of people to volcanic threats is linked to daily access to sources of livelihood, especially agriculture and tourism. This is despite the perception of people of the risk to their lives and properties. In order to counter the factors of vulnerability, the study also aimed to identify and enhance local capacities. To achieve such an objective, a participatory three-dimensional mapping (P3DM) activity was conducted to facilitate the dialogue between the local people and the different stakeholders as well as to prepare plans and measures to reduce volcanic risk. The P3DM was a half success considering that it has not yet led to an operational plan which takes into account the local capacities. The main reasons included (1) the non-participatory aspect of the project at the beginning which should have identified priorities for people and let them lead the project to ensure the sustainability of (2) deep conflicts within the community which complicated the focus group discussions around the 3-D map, and the difficulties in involving more marginalised people like women and the youth, and (3) the fact that volcanic risk is not a priority for the people, who are more concerned with daily difficulties due to unsustainable livelihoods, a lack of access to water, land tenure, and the restrictions by the Fogo Natural Park administration and the municipal officials. Still, the study was successful in creating a space for dialogue between the local people and the outside stakeholders such as the Natural Park Administration, the Civil Protection, and the Municipality of Santa Catarina, who have all participated actively during the course of the project.

Objective: Many studies point to the negative impact of discrimination on the psychological and social functioning of ethnic minority persons. The realization of these studies across multiple European countries enables a systematization of this knowledge, which is our goal in the present work. Method: This study presents a systematic review and a meta-analysis of the correlates of perceived ethnic discrimination among ethnic minority persons living in European countries. Results: The analyses of 121 effect sizes reveal that discrimination is positively associated with symptoms of psychiatric disturbances, depression, psychosis, perceived stress, and externalizing behavior. Discrimination is also negatively associated with the self-esteem, positive evaluation of life, self-efficacy/mastery, well-being, and psychological adaptation of migrants. The results show that the strength of these relationships is, in some cases, moderated by persons' gender, age, and ethnicity and countries' multicultural preference and countries' rating in the Migrant Integration Policies Index (MIPEX), namely, in regard to labor market mobility, permanent residence, and antidiscrimination policies. Conclusions: The detrimental effect of discrimination on many psychosocial dimensions emphasizes the need for governmental agencies to develop systemic and concrete interventions to decrease ethnic prejudice in Europe. Moreover, the results show that fostering multiculturalism, and implementing broad antidiscrimination policies has a protective function in the face of discrimination. Enforcing the implementation of these policies can be a fundamental way to promote the psychological adjustment of ethnic minority persons. ; info:eu-repo/semantics/acceptedVersion

BACKGROUND: The prevalence of overweight and obesity in Europe is high. It is a major cause of the overall rates of many of the main chronic (or non communicable) diseases in this region and is characterized by an unequal socio-economic distribution within the population. Obesity is largely determined by modifiable lifestyle behaviours such as low physical activity levels, sedentary behaviour and consumption of energy dense diets. It is increasingly being recognised that effective responses must go beyond interventions that only focus on a specific individual, social or environmental level and instead embrace system-based multi-level intervention approaches that address both the individual and environment. The EU-funded project "sustainable prevention of obesity through integrated strategies" (SPOTLIGHT) aims to increase and combine knowledge on the wide range of determinants of obesity in a systematic way, and to identify multi-level intervention approaches that are strong in terms of Reach, Efficacy, Adoption, Implementation and Maintenance (RE-AIM). METHODS/DESIGN: SPOTLIGHT comprises a series of systematic reviews on: individual-level predictors of success in behaviour change obesity interventions; social and physical environmental determinants of obesity; and on the RE-AIM of multi-level interventions. An interactive web-atlas of currently running multi-level interventions will be developed, and enhancing and impeding factors for implementation will be described. At the neighbourhood level, these elements will inform the development of methods to assess obesogenicity of diverse environments, using remote imaging techniques linked to geographic information systems. The validity of these methods will be evaluated using data from surveys of health and lifestyles of adults residing in the neighbourhoods surveyed. At both the micro- and macro-levels (national and international) the different physical, economical, political and socio-cultural elements will be assessed. DISCUSSION: SPOTLIGHT offers the potential ...

ABSTRACT: BACKGROUND: The prevalence of overweight and obesity in Europe is high. It is a major cause of the overall rates of many of the main chronic (or non communicable) diseases in this region and is characterized by an unequal socio-economic distribution within the population. Obesity is largely determined by modifiable lifestyle behaviours such as low physical activity levels, sedentary behaviour and consumption of energy dense diets. It is increasingly being recognised that effective responses must go beyond interventions that only focus on a specific individual, social or environmental level and instead embrace system-based multi-level intervention approaches that address both the individual and environment. The EU-funded project "sustainable prevention of obesity through integrated strategies" (SPOTLIGHT) aims to increase and combine knowledge on the wide range of determinants of obesity in a systematic way, and to identify multi-level intervention approaches that are strong in terms of Reach, Efficacy, Adoption, Implementation and Maintenance (RE-AIM).Methods/designSPOTLIGHT comprises a series of systematic reviews on: individual-level predictors of success in behaviour change obesity interventions; social and physical environmental determinants of obesity; and on the RE-AIM of multi-level interventions. An interactive web-atlas of currently running multi-level interventions will be developed, and enhancing and impeding factors for implementation will be described. At the neighbourhood level, these elements will inform the development of methods to assess obesogenicity of diverse environments, using remote imaging techniques linked to geographic information systems. The validity of these methods will be evaluated using data from surveys of health and lifestyles of adults residing in the neighbourhoods surveyed. At both the micro- and macro-levels (national and international) the different physical, economical, political and socio-cultural elements will be assessed. DISCUSSION: SPOTLIGHT offers the ...