Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99


Any time

2019 ( 2 )

2018 ( 2 )

2017 ( 5 )

2016 ( 13 )

Custom range...

Search Results: 1 - 10 of 3036 matches for " Per-Olof Hansson "
All listed articles are free for downloading (OA Articles)
Page 1 /3036
Display every page Item
Relationship between commuting and health outcomes in a cross-sectional population survey in southern Sweden
Erik Hansson, Kristoffer Mattisson, Jonas Bj?rk, Per-Olof ?stergren, Kristina Jakobsson
BMC Public Health , 2011, DOI: 10.1186/1471-2458-11-834
Abstract: We used data from two cross-sectional population-based public health surveys performed in 2004 and 2008 in Scania, Sweden (56% response rate). The final study population was 21, 088 persons aged 18-65, working > 30 h/week. Duration (one-way) and mode of commuting were reported. The outcomes studied were perceived poor sleep quality, everyday stress, low vitality, mental health, self-reported health, and absence from work due to sickness during the past 12 months. Covariates indicating socioeconomic status and family situation, overtime, job strain and urban/rural residency were included in multivariate analyses. Subjects walking or cycling to work < 30 min were used as a reference category.Monotonous relations were found between duration of public transport commuting and the health outcomes. For the category commuting > 60 min odds ratios (ORs) ranged from 1.2 - 1.6 for the different outcomes. For car commuting, the relationships were concave downward or flat, with increasing subjective health complaints up to 30-60 min (ORs ranging from 1.2 - 1.4), and lower ORs in the > 60 min category. A similar concave downward relationship was observed for sickness absence, regardless of mode of transport.The results of this study are concordant with the few earlier studies in the field, in that associations were found between commutation and negative health outcomes. This further demonstrates the need to consider the negative side-effects of commuting when discussing policies aimed at increasing the mobility of the workforce. Studies identifying population groups with increased susceptibility are warranted.In current Swedish and European labour policy, increased mobility of the workforce is seen as an important way to create dynamic regions and thereby economical growth [1-3]. The average commuting time in the workforce in Sweden in 2000 was 37 minutes, placing Sweden just below the median when compared to the countries in the European Union and far below the US [4]. There are
A validation study using a modified version of Postural Assessment Scale for Stroke Patients: Postural Stroke Study in Gothenburg (POSTGOT)
Carina U Persson, Per-Olof Hansson, Anna Danielsson, Katharina S Sunnerhagen
Journal of NeuroEngineering and Rehabilitation , 2011, DOI: 10.1186/1743-0003-8-57
Abstract: In the intrarater reliability study 114 patients and in the interrater reliability study 15 patients were examined twice with the test within one to 24 hours in the first week after stroke. Spearman's rank correlation, Kappa coefficients, Percentage Agreement and the newer rank-invariant methods; Relative Position, Relative Concentration and Relative rank Variance were used for the statistical analysis.For the intrarater reliability Spearman's rank correlations were 0.88-0.98 and k were 0.70-0.93 for the individual items. Small, statistically significant, differences were found for two items regarding Relative Position and for one item regarding Relative Concentration. There was no Relative rank Variance for any single item.For the interrater reliability, Spearman's rank correlations were 0.77-0.99 for individual items. For some items there was a possible, even if not proved, reliability problem regarding Relative Position and Relative Concentration. There was no Relative rank Variance for the single items, except for a small Relative rank Variance for one item.The high intrarater and interrater reliability shown for the modified Postural Assessment Scale for Stroke Patients, the Swedish version of Postural Assessment Scale for Stroke Patients, with traditional and newer statistical analyses, particularly for assessments performed by the same rater, support the use of the Swedish version of Postural Assessment Scale for Stroke Patients, in the acute stage after stroke both in clinical and research settings. In addition, the Swedish version of Postural Assessment Scale for Stroke Patients was easy to apply and fast to administer in clinic.The ability to maintain postural balance is often reduced for patients who have suffered a stroke [1-3]. Reliable measurements, designed to assess and monitor postural balance in the initial phase after stroke, are needed for prognostic identification, adequate reporting between different caregivers and to evaluate training effects
The clinical consequences of a pre-hospital diagnosis of stroke by the emergency medical service system. A pilot study
Ingela Wennman, Paula Klittermark, Johan Herlitz, Bodil Lernfelt, Mats Kihlgren, Claes Gustafsson, Per-Olof Hansson
Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine , 2012, DOI: 10.1186/1757-7241-20-48
Abstract: The aim of the study was to describe the feasibility of a pre-hospital diagnosis of stroke by an emergency medical service (EMS) nurse in terms of diagnostic accuracy and delay from dialing 112 until arrival at a stroke unit.Between September 2008 and November 2009, a subset of patients with presumed acute stroke in the pre-hospital setting were admitted by EMS staff directly to a stroke unit, bypassing the emergency department. A control group, matched for a number of background variables, was created.In all, there were 53 patients in the direct admission group, and 49 patients in the control group. The median delay from calling for an ambulance until arrival at a stroke unit was 54 minutes in the direct admission group and 289 minutes in the control group (p?<?0.0001).In a comparison between the direct admission group and the control group, a final diagnosis of stroke, transient ischemic attack (TIA) or the sequelae of prior stroke was found in 85% versus 90% (NS). Among stroke patients who lived at home prior to the event, the percentage of patients that were living at home after 3?months was 71% and 62% respectively (NS).In a pilot study, the concept of a pre-hospital diagnosis of stroke by an EMS nurse was associated with relatively high diagnostic accuracy in terms of stroke-related diagnoses and a short delay to arrival at a stroke unit. These data need to be confirmed in larger studies, with a concomitant evaluation of the clinical consequences and, if possible, the level of patient satisfaction as well.
From Texts to Pictures in Teaching Civics. Participant Observation in Mark’s Classroom
Per-Olof Erixon
Journal of Social Science Education , 2010,
Abstract: We are now living in a “new media age”, with a dramatic shift from the linguistic to the visual, from books and book pages to screens and windows (Kress, 2003). This article offsets out to explore what happens to educational activities in schools when electronic media and pictures replace written texts. The article draws on interviews and classroom observations of a particular Swedish vocational upper secondary programme, where the social studies teacher observes that students are finding it increasingly difficult to benefit from written texts. Theoretically, the study draws on Meyrowitz (1985/1986) theories concerning the relationship among media, situations and behaviour and the effect of a shift from “print situations” to “electronic situations” on a broad range of social role and Bernstein’s (1996/2000) notions of ‘recontextualisation’, ‘framing’ and ‘classification’. The study shows that classroom relations are changing; hierarchies between students and teachers are being broken down, and classification of subjects is affected in the sense that the students’ own interpretations and references are beginning to govern teaching when pictures and electronic media enter the educational discourse.
A Sparse and High-Order Accurate Line-Based Discontinuous Galerkin Method for Unstructured Meshes
Per-Olof Persson
Mathematics , 2012, DOI: 10.1016/j.jcp.2012.09.008
Abstract: We present a new line-based discontinuous Galerkin (DG) discretization scheme for first- and second-order systems of partial differential equations. The scheme is based on fully unstructured meshes of quadrilateral or hexahedral elements, and it is closely related to the standard nodal DG scheme as well as several of its variants such as the collocation-based DG spectral element method (DGSEM) or the spectral difference (SD) method. However, our motivation is to maximize the sparsity of the Jacobian matrices, since this directly translates into higher performance in particular for implicit solvers, while maintaining many of the good properties of the DG scheme. To achieve this, our scheme is based on applying one-dimensional DG solvers along each coordinate direction in a reference element. This reduces the number of connectivities drastically, since the scheme only connects each node to a line of nodes along each direction, as opposed to the standard DG method which connects all nodes inside the element and many nodes in the neighboring ones. The resulting scheme is similar to a collocation scheme, but it uses fully consistent integration along each 1-D coordinate direction which results in different properties for nonlinear problems and curved elements. Also, the scheme uses solution points along each element face, which further reduces the number of connections with the neighboring elements. Second-order terms are handled by an LDG-type approach, with an upwind/downwind flux function based on a switch function at each element face. We demonstrate the accuracy of the method and compare it to the standard nodal DG method for problems including Poisson's equation, Euler's equations of gas dynamics, and both the steady-state and the transient compressible Navier-Stokes equations.
Development of a Genetic Transformation Method for Seabuckthorn (Hippophae rhamnoides L.)  [PDF]
Sridevy Sriskandarajah, David Clapham, Per-Olof Lundquist
American Journal of Plant Sciences (AJPS) , 2014, DOI: 10.4236/ajps.2014.55067

Seabuckthorn (Hippophae rhamnoides L.) is a dioecious plant with berries containing high amounts of several bioactive compounds with nutritional and medicinal traits. It is also planted to control soil erosion. A genetic transformation procedure will facilitate studies of the control of plant development and interactions with symbionts and pathogens, and will provide a tool for plant breeding. Here, we present a particle bombardment method for transforming seabuckthorn. The early stages of induced adventitious shoots from roots were chosen as a novel target tissue for the transformation procedure. The root system was bombarded with gold particles coated with plasmid pRT99gus containing genes for plant kanamycin resistance and for β-glucuronidase expression, and shoots were regenerated under kanamycin selection. PCR analysis of the regenerated transformed lines confirmed the presence of a 603 bp gus (uidA) gene fragment and a 1.5 kb fragment from the 35S promoter in three shoots from independent transformation events.

Prevalence of cardiovascular risk factors and the metabolic syndrome in middle-aged men and women in Gothenburg, Sweden
Lennart Welin, Annika Adlerberth, Kenneth Caidahl, Henry Eriksson, Per-Olof Hansson, Saga Johansson, Annika Rosengren, Kurt Sv?rdsudd, Catharina Welin, Lars Wilhelmsen
BMC Public Health , 2008, DOI: 10.1186/1471-2458-8-403
Abstract: A random sample of men and women born in 1953 were examined in 2003–2004 for cardiovascular risk factors. Men born in 1943 and that participated in the examination in 1993 were also invited. Descriptive statistics were calculated.The participation rate among men and women born in 1953 was 60 and 67% respectively. Among men born in 1943, the participation rate was 87%. The prevalence of obesity was from 15 to 17% (body mass index, BMI ≥ 30) in the three samples. The prevalence of known diabetes was 4% among the 50-year-old men and 6% among the 60-year-old men, and 2% among the women. Increased fasting plasma glucose varied substantially from 4 to 33% depending on cut-off level and gender. Mean cholesterol was 5.4 to 5.5 mmol/l. Smoking was more common among women aged 50 (26%) than among men aged 50 (22%) and 60 years (15%). The prevalence of the MetSyn varied with the definition used: from 10 to 15.8% among the women, from 16.1 to 26% among 50-year-old men, and from 19.9 to 35% among the 60-year-old men. Only 5% of the men and women had no risk factors.This study provides up-to-date information about the prevalence of cardiovascular risk factors and the MetSyn in middle-aged Swedish men and women. Different definitions of the MetSyn create confusion regarding which definition to use.Since the landmark Framingham Heart study in 1948 [1], there have been several hundred prospective cohort studies on cardiovascular disease and associated risk factors.In Gothenburg the first cohort of 50-year-old men (the Study of Men Born in 1913) was examined in 1963 [2]. Younger cohorts of 50-year-old men (i.e. men born in 1923, 1933, and 1943) have later been examined every 10th year [3-5].The present study adds new data by including the 5th cohort of 50-year-old men (men born in 1953). We have also examined 50-year-old women (born in 1953) in addition to a follow-up examination of the 4th cohort of 50-year-old men (born in 1943), now aged 60 years.With an increasing prevalence of e
Evaluating a traditional medicine policy in South Africa: phase 1 development of a policy assessment tool
Georgios Gavriilidis,Per-Olof ?stergren
Global Health Action , 2012, DOI: 10.3402/gha.v5i0.17271
Abstract: Background: Policies that empower individuals and communities may be appropriate for public health, and more broadly. Simple, transparent and acceptable tools are therefore required to evaluate policies from an empowerment perspective. In 2008, the South African Department of Health (DOHSA) drafted a policy to endorse the integration of African Traditional Medicine (ATM) into the public health sector, following the World Health Organization's (WHO) long-standing directives. Objective: The purpose of this study is to critically analyze this policy using a novel evaluation tool. Design: A 12-point ‘Policy Empowerment Index’ (PEI) is introduced, and used to classify and score the policy according to five theoretical policy types. The evaluation was based on a stepwise review and associated publications: policy drafts, policy statements and news announcements. Results: According to the assessment tool, the ATM policy was marginally ‘supportive’ of constituent empowerment, although several ‘directive’ features were also observed. The importance of ATM to SA's communities and the promotion of education, employment, entrepreneurship and peripheral resource mobilization were the main empowering elements. Centralised conception, planning and implementation, the absence of provisions for local adaptations and the authoritative legislation context were sub-optimal features. Conclusions: South Africa's ATM legislation may need to further involve communities in policy design and implementation to capitalise upon the broader benefits of community empowerment. However, the iterative nature of method and evaluation is important. Indeed, they are proposed as points to initiate participatory development, and improve policy evaluation . Such instruments can empower constituents in the political process.
Mot en professionalisering av det pedagogiska ledarskapet vid Ume universitet
Sven B Eriksson,Per-Olof ?gren
H?gre Utbildning , 2013,
Abstract: Det pedagogiska ledarskapet inom h gre utbildning fokuseras allt mer. Det understryks genom att flera l ros ten f reskriver s v l att pedagogiska ledare ska finnas p olika niv er, som vilka vergripande uppgifter dessa ska ha. Denna artikel r ett resultat av en fallstudie av hur de till gnade kunskaperna och f rdigheterna fr n kursen Pedagogiskt ledarskap, en kurs f r m lgruppen studierektorer/pedagogiskt ansvariga eller motsvarande arrangerad av Universitetspedagogiskt centrum, har bidragit till deltagarnas professionalisering av det pedagogiska ledarskapet ett r efter kursens slut. Fallstudien genomf rdes genom gruppintervjuer. Respondenterna uttryckte att de f tt ett st rkt sj lvf rtroende i rollen som pedagogiska ledare samt att kursen bidrog till en professionalisering av rollen som pedagogiska ledare genom att st rka identiteten, att skapa en b rjan till en handlingsetik best ende av delvis delade v rderingar kring det pedagogiska ansvaret samt ge utbildning och tr ning i f rdigheter som har sin grund i teoretisk kunskap. Kursen Pedagogiskt ledarskap ger d rmed ett st d i en process mot en professionalisering av det pedagogiska ledarskapet vid Ume universitet.
Den naturvetenskapliga undervisningens estetik
Per-Olof Wickman,Britt Jakobson
Utbildning & Demokrati : Tidsskrift f?r Didaktik och Utbildningspolitik , 2005,
Abstract: The role of aesthetic experiences in learning science, on universityundergraduate courses and in primary schools, was examined in avein inspired by Dewey and the later Wittgenstein. The study showshow aesthetic and normative aspects of learning science are intima-tely related, and that aesthetic experiences are moments of antici-pation and consummation. In such instances, aesthetics is not onlyan expression of joy, but also something that is integrated withcommunicating desirable ways of proceeding, and learning whatenables us to progress, both from the individual’s point of viewand in terms of communicating science. Aesthetic language is usedby teachers and students in establishing norms of action, and intalking about what objects, events and actions are to be includedand excluded. Aesthetic experiences are also intimately linked tothe ability of students to participate.
Page 1 /3036
Display every page Item

Copyright © 2008-2017 Open Access Library. All rights reserved.