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Search Results: 1 - 10 of 325499 matches for " S. Wiklund Axelsson "
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The Anticipated Positive Psychosocial Impact of Present Web-Based E-Health Services and Future Mobile Health Applications: An Investigation among Older Swedes
S. Wiklund Axelsson,L. Nyberg,A. N?slund,A. Melander Wikman
International Journal of Telemedicine and Applications , 2013, DOI: 10.1155/2013/509198
Abstract: This study investigates the anticipated psychosocial impact of present web-based e-health services and future mobile health applications among older Swedes. Random sample’s of Swedish citizens aged 55 years old and older were given a survey containing two different e-health scenarios which respondents rated according to their anticipated psychosocial impact by means of the PIADS instrument. Results consistently demonstrated the positive anticipation of psychosocial impacts for both scenarios. The future mobile health applications scored more positively than the present web-based e-health services. An increase in age correlated positively to lower impact scores. These findings indicate that from a psychosocial perspective, web-based e-health services and mobile health applications are likely to positively impact quality of life. This knowledge can be helpful when tailoring and implementing e-health services that are directed to older people. 1. Introduction The world is facing an increasingly aging population which is presently placing heavy demand on health care services, and this continues into the future [1]. There are growing expectations that e-health will be the solution for these demands. E-health refers to “tools and services using information and communication technologies (ICTs) that can improve prevention, diagnosis, treatment, monitoring, and management and can benefit the entire community by improving access to care and quality of care and by making the health sector more efficient” [2]. The goal is to make e-health both more user-friendly and thus more widely accepted by involving patients in strategy, design, and implementation, as well as supporting the general increase in quality of life [2, 3]. European countries, such as Norway, Denmark, Germany, Greece, and Portugal, show steady development in using the Internet as a source for health information [4]. In Sweden, it is possible for citizens nationwide to use web-based e-health services offered by Swedish public health care providers to receive general e-health information online [5], receive personalized web-based e-health services (e.g., online e-prescription renewal), ask their doctors questions online, obtain medical devices, and reschedule doctor appointments [6, 7]. The next generation of e-health systems is mobile health applications that are “considered as the strongest contribution for the next generation e-health systems” [8]. These applications act closely with an individual and “focus on serving the needs of the user by providing widespread access to relevant information
Professional caregivers’ perceptions on the prerequisites for and consequences of people with mild dementia using a digital photo diary  [PDF]
Christina Harrefors, Karin Axelsson, Anders Lundquist, Bengt Lundquist, Stefan S?venstedt
Open Journal of Nursing (OJN) , 2013, DOI: 10.4236/ojn.2013.31006
Abstract:

Research is currently ongoing to investigate the use of assistive technology by people with mild dementia to support independent living at home. The aim of this study was to describe professional caregivers’ perceptions on the prerequisites for and consequences of people with mild dementia using a digital photo diary to facilitate their talks about daily events with their family members. A questionnaire was sent out to 582 participants (response rate 70.1%) to elucidate the professional caregivers’ perceptions on the use of the digital photo diary. The questionnaire contained both quantitative and qualitative data and was analyzed with descriptive statistics, factor analysis, multivariate analysis of covariance and qualitative content analysis. This study reports the results related to prerequisites and consequences of using the photo diary. The results from the factor analysis revealed four factors: Trust, Vulnerability, Dependency/Independency and Control. The qualitative content analysis resulted in five categories: Immediate implementation after receiving a diagnose is required, Relativesparticipation is a necessity, Strengthened self-esteem and meaningful everyday life, Increased alienation and a feeling of isolation and Assistive digital devices provide opportunities. The theme was

The Right Thing at the Right Time: Why Ostensive Naming Facilitates Word Learning
Emma L. Axelsson,Jessica S. Horst
Frontiers in Psychology , 2012, DOI: 10.3389/fpsyg.2012.00088
Abstract: The current study examines how focusing children’s attention immediately after fast mapping improves their ability to retain novel names. Previous research suggests that young children can only retain novel names presented via referent selection if ostensive naming is provided and that such explicit naming works by increasing children’s attention to the target and decreasing their attention to the competitor objects (Horst and Samuelson, 2008). This explanation of the function of ostensive naming after referent selection trials was tested by drawing 24-month-old children’s attention to the target either by illuminating the target, covering the competitors, or both. A control group was given a social pragmatic cue (pointing). Children given social pragmatic cue support did not demonstrate retention. However, children demonstrated retention if the target object was illuminated, and also when it was illuminated and the competitors simultaneously dampened. This suggests that drawing children’s attention to the target object in a manner that helps focus children’s attention is critical for word learning via referent selection. Directing attention away from competitors while also directing attention toward a target also aids in the retention of novel words.
Analyticity of layer potentials and $L^{2}$ solvability of boundary value problems for divergence form elliptic equations with complex $L^{\infty}$ coefficients
M. Alfonseca,P. Auscher,A. Axelsson,S. Hofmann,S. Kim
Mathematics , 2007, DOI: 10.1016/j.aim.2010.12.014
Abstract: We consider divergence form elliptic operators of the form $L=-\dv A(x)\nabla$, defined in $R^{n+1} = \{(x,t)\in R^n \times R \}$, $n \geq 2$, where the $L^{\infty}$ coefficient matrix $A$ is $(n+1)\times(n+1)$, uniformly elliptic, complex and $t$-independent. We show that for such operators, boundedness and invertibility of the corresponding layer potential operators on $L^2(\mathbb{R}^{n})=L^2(\partial\mathbb{R}_{+}^{n+1})$, is stable under complex, $L^{\infty}$ perturbations of the coefficient matrix. Using a variant of the $Tb$ Theorem, we also prove that the layer potentials are bounded and invertible on $L^2(\mathbb{R}^n)$ whenever $A(x)$ is real and symmetric (and thus, by our stability result, also when $A$ is complex, $\Vert A-A^0\Vert_{\infty}$ is small enough and $A^0$ is real, symmetric, $L^{\infty}$ and elliptic). In particular, we establish solvability of the Dirichlet and Neumann (and Regularity) problems, with $L^2$ (resp. $\dot{L}^2_1)$ data, for small complex perturbations of a real symmetric matrix. Previously, $L^2$ solvability results for complex (or even real but non-symmetric) coefficients were known to hold only for perturbations of constant matrices (and then only for the Dirichlet problem), or in the special case that the coefficients $A_{j,n+1}=0=A_{n+1,j}$, $1\leq j\leq n$, which corresponds to the Kato square root problem.
Prostate cancer genomics: can we distinguish between indolent and fatal disease using genetic markers?
Fredrik Wiklund
Genome Medicine , 2010, DOI: 10.1186/gm166
Abstract: Prostate cancer constitutes a major health burden, being the most common non-cutaneous malignancy among men in developed countries. In 2007, almost 800,000 new cases of prostate cancer and 250,000 deaths from this disease were estimated to have occurred worldwide [1]. The highest incidence of prostate cancer is observed in the USA, with 192,280 new cases and 27,360 deaths expected in 2009, thereby being the second most common cause of cancer-related death [2]. Prostate cancer is a heterogeneous disease and its natural history is not completely understood. Early autopsy studies have shown a high prevalence of clinically undetected prostate cancer at time of death. In the USA, more than one in three men over 50 years of age had histologic evidence of prostate cancer at autopsy and this prevalence was observed to increase with age, with more than 67% of men aged over 80 years having prostate cancer at time of death [3]. These findings indicate that a high proportion of prostate tumors are clinically insignificant and will never lead to a lethal outcome. Furthermore, the introduction and widespread application of prostate-specific antigen (PSA) testing has led to increased detection of early-stage, low-volume, non-palpable tumors. This has in turn raised concerns of increased overdiagnosis and unnecessary treatment of indolent disease [4,5]. To this end, new strategies to help clinicians distinguish between lethal and indolent prostate cancer are urgently needed. Prostate cancer is one of the most heritable cancers in men and recent studies have revealed numerous genetic variants associated with this disease. This review will give an overview of the current knowledge of prostate cancer genetics, with a special focus on the ability of genetic variants to predict more aggressive forms.A family history of prostate cancer is one of the strongest risk factors, and twin studies suggest that as much as 42% of the disease risk is explained by heritable factors [6]. Attempts to
Além da racionalidade instrumental: sentido histórico e racionalidade na teoria da história de J rn Rüsen
Martin Wiklund
História da Historiografia , 2008,
Abstract: O conceito de sentido é central no discurso histórico contemporaneo. A forma como o sentido é compreendido tem conseqüências cruciais para o uso da história, para as possibilidades de orienta o histórica e para os riscos de sua instrumentaliza o. Este artigo explica o sentido do conceito de sentido na teoria da história de J rn Rüsen, argumentando que sua perspectiva fornece, no que diz respeito aos temas da orienta o e da instrumentaliza o, uma alternativa mais promissora do que o objetivismo e o construtivismo relativista. Com o objetivo de explicar o conceito de sentido em Rüsen, diferentes conceitos de sentido ser o destacados. Uma distin o importante será feita entre sentido como constitui o e sentido como representa o. Em seguida, diferentes aspectos do conceito de sentido de Rüsen ser o articulados. Nesse pano de fundo, o conceito de ‘racionalidade de sentido’ será analisado e oposto tanto ao construtivismo, em sua inerente tendência ao instrumentalismo, quanto à tendência a objetificar o sentido em análises empíricas da consciência histórica.
Gert J J Biesta & Denise Egéa-Kuehne, red (2001): Derrida & Education, London: Routledge. 251 s
Matilda Wiklund
Utbildning & Demokrati : Tidsskrift f?r Didaktik och Utbildningspolitik , 2003,
Abstract:
Carcass treatments for improved meat quality (In Swedish with Summary in English)
Eva Wiklund
Rangifer , 2005,
Abstract: Meat quality is a term that includes many different aspects like e.g. safety, ethics, nutrition, taste and functionality. What is regarded as most important is mainly related to where a person is placed in the chain from production to consumption. Along this chain are also many factors that influence the quality of meat. By measuring the pH value of meat it is possible to get good information about shelf life, tenderness, colour and water-holding capacity. Meat pH also gives an indication to whether the animals have been exposed to stress prior to slaughter or not. Good pastures and supplementary feeding using grain-based feed mixtures have been demonstrated to increase the energy stores in the animals' muscles and therefore have a positive effect on pH values in venison. What the animals had been eating prior to slaughter also affected the fat composition and meat flavour. Meat from animals grazing pasture had more polyunsaturated fatty acids and a "wild" flavour compared with meat from animals fed grain-based pellets. It is possible to change the fat composition in a commercial grain-based feed mixture, without altering the protein or energy content, so that the fat composition mimic that of a natural pasture. Pelvic suspension of a carcass will stretch the muscles in valuable cuts and improve the tenderness of the meat. In fallow deer carcasses the tenderness was improved in several meat cuts and in addition the water-holding capacity of the meat increased after pelvic suspension. Electrical stimulation of the carcass quickly empties the energy stores in the muscles and accelerates the onset of rigor mortis. In red deer venison electrical stimulation accelerated the rate of meat tenderisation, but this benefit was lost after approx. 3 weeks of ageing (-1.5 °C). A study from Alaska demonstrated no effects of electrical stimulation of reindeer carcasses on meat tenderness or water-holding capacity. We recommend further studies of pelvic suspension and electrical stimulation to get a better understanding of their effects on venison quality and to be able to implement these techniques in the most optimal way.
Microbiological shelf life of fresh, chilled reindeer meat (M. longissimus dorsi)
Eva Wiklund
Rangifer , 2011,
Abstract: In this pilot study loin muscles (M. longissimus dorsi) from six reindeer calves (aged 4 months) were used to determine shelf life of fresh, chilled reindeer meat stored at +4 °C, measured as microbiological quality (aerobic microorganisms and Escherichia coli). The loins were collected at boning 3 days post slaughter and divided in five pieces that were randomly assigned to five different storage times; sampling directly after packaging and after chilled storage for 2, 3, 4 and 5 weeks at +4 °C. Samples were vacuum packaged and transported chilled to Hjortens Laboratory in stersund, Sweden (accredited by SWEDAC according to SS-EN ISO/IEC 17025:2005 for food analysis) where the storage, microbiological sampling and analysis took place according to the protocols of Nordic Committee on Food Analysis (NMKL). The total amount of aerobic microorganisms at the first sampling directly after packaging (three days post slaughter) was 3.4 ± 0.3 log10 CFU/g. After two and three weeks of vacuum packaged chilled storage at +4°C the microbiological quality of the samples was on the border-line to poor (6.8 ± 0.3 log10 CFU/g). At four and five weeks of chilled storage the levels of aerobic microorganisms were significantly highest (P≤0.05) and the limit for acceptable quality of 7 log10 CFU/g aerobic bacteria had been passed (7.3 ± 0.3 log10 CFU/g and 7.8 ± 0.3 log10 CFU/g, respectively). Very few of the reindeer meat samples were contaminated with Escherichia coli bacteria. The results from the present pilot study suggest that storage time for vacuum packaged fresh, chilled reindeer meat should not exceed 3 weeks at a temperature of +4 °C.
Wave interactions in a shallow-water model
K. Wiklund
Nonlinear Processes in Geophysics (NPG) , 1998,
Abstract: By using a Hamiltonian method, non-linear three-wave interaction in a class of systems related to the shallow water model is considered and a general coupling coefficient is presented. In the special case where two inertial waves and one Rossby wave interact resonantly, it is found that even a very small shear of the background velocity can be important in the interaction process. The stability of the system is considered by using a pseudo-energy method. Some implications for the dynamics of atmospheric flows are pointed out.
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