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Träfflista för sökning "AMNE:(MEDICAL AND HEALTH SCIENCES Medical Biotechnology Other Medical Biotechnology) "

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  • Petzold, Martin, et al. (författare)
  • Towards an Ambient Assisted Living User Interaction Taxonomy
  • 2013
  • Ingår i: CHI '13 Extended Abstracts of the ACM International Conference on Human Factors in Computing Systems. - New York : ACM Press. - 9781450318990 ; , s. 49-54
  • Konferensbidrag (refereegranskat)abstract
    • Extensive research in the field of ambient assisted living (AAL) provides profound knowledge about the design of AAL systems. However, more generic design characteristics for user interaction have not been formalized for this domain yet. Thus, we propose to develop a domain specific taxonomy for the design of user interaction in AAL systems. We adopted a systematic taxonomy development approach that combines an empirical and a pseudo-conceptual strategy. Six co-researchers from different disciplines conduct the iterative research process. Next to AAL systems existing taxonomies in the field of human-computer interaction are analyzed following the Delphi method. In this paper we present our research process and preliminary results from the first iteration. The final taxonomy allows classification and should support the analysis of user interaction utilized in AAL systems. Furthermore, it can deal as a practical design guideline.
  • Wiszmeg, Andréa, et al. (författare)
  • Transforming trash to treasure Cultural ambiguity in foetal cell research
  • 2021
  • Ingår i: Philosophy, Ethics, and Humanities in Medicine. - : BioMed Central (BMC). - 1747-5341. ; 16
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Rich in different kind of potent cells, embryos are used in modern regenerative medicine and research. Neurobiologists today are pushing the boundaries for what can be done with embryos existing in the transitory margins of medicine. Therefore, there is a growing need to develop conceptual frameworks for interpreting the trans‐ formative cultural, biological and technical processes involving these aborted, donated and marginal embryos. This article is a contribution to this development of frameworks.Methods: This article examines different emotional, cognitive and discursive strategies used by neurobiologists in a foetal cell transplantation trial in Parkinson’s disease research, using cells harvested from aborted embryos. Two inter‐ views were analysed in the light of former observations in the processing laboratories, using the anthropologist Mary Douglas’s concept of pollution behaviour and the linguist, philosopher, psychoanalyst and feminist Julia Kristeva’s concept of the abjective to explain and make sense of the findings.Results: The findings indicate that the labour performed by the researchers in the trial work involves transforming the foetal material practically, as well as culturally, from trash to treasure. The transformation process contains different phases, and in the interview material we observed that the foetal material or cells were considered objects, subjects or rejected as abject by the researchers handling them, depending on what phase of process or practice they referred to or had experience of. As demonstrated in the analysis, it is the human origin of the cell that makes it abjective and activates pollution discourse, when the researchers talk of their practice.Conclusions: The marginal and ambiguous status of the embryo that emerges in the accounts turns the scientists handling foetal cells into liminal characters in modern medicine. Focusing on how practical as well as emotional and cultural strategies and rationalizations of the researchers emerge in interview accounts, this study adds insights on the rationale of practically procuring, transforming and utilizing the foetal material to the already existing studies focused on the donations. We also discuss why the use and refinement of a tissue, around which there is practical consensus but cultural ambiguity, deserves further investigation.Keywords: Foetal cells, Embryos, Abortion, Transplantation, Pollution behaviour, Ritual, Foetal waste, Abject, Embryonic ambiguity
  • Memedi, Mevludin, et al. (författare)
  • Validity and Responsiveness of At-Home Touch Screen Assessments in Advanced Parkinson's Disease
  • 2015
  • Ingår i: IEEE Journal of Biomedical and Health Informatics. - : IEEE - Institute of Electrical and Electronics Engineers Inc.. - 2168-2194 .- 2168-2208. ; 19:6, s. 1829-1834
  • Tidskriftsartikel (refereegranskat)abstract
    • The aim of this study was to investigate if a telemetry test battery can be used to measure effects of Parkinson's disease (PD) treatment intervention and disease progression in patients with fluctuations. Sixty-five patients diagnosed with advanced PD were recruited in an open longitudinal 36-month study; 35 treated with levodopa-carbidopa intestinal gel (LCIG) and 30 were candidates for switching from oral PD treatment to LCIG. They utilized a test battery, consisting of self-assessments of symptoms and fine motor tests (tapping and spiral drawings), four times per day in their homes during week-long test periods. The repeated measurements were summarized into an overall test score (OTS) to represent the global condition of the patient during a test period. Clinical assessments included ratings on unified PD rating scale (UPDRS) and 39-item PD questionnaire (PDQ-39) scales. In LCIG-naive patients, the mean OTS compared to baseline was significantly improved from the first test period on LCIG treatment until month 24. In LCIG-non naive patients, there were no significant changes in the mean OTS until month 36. The OTS correlated adequately with total UPDRS (rho = 0.59) and total PDQ-39 (0.59). Responsiveness measured as effect size was 0.696 and 0.536 for OTS and UPDRS, respectively. The trends of the test scores were similar to the trends of clinical rating scores but the dropout rate was high. Correlations betweenOTS and clinical rating scales were adequate indicating that the test battery contains important elements of the information of well-established scales. The responsiveness and reproducibility were better for OTS than for total UPDRS.
  • Ušaj, Marko, et al. (författare)
  • Electrofusion of B16-F1 and CHO cells: the comparison of the pulse first and contact first protocols
  • 2013
  • Ingår i: Bioelectrochemistry. - 1567-5394 .- 1878-562X. ; 89, s. 34-41
  • Tidskriftsartikel (refereegranskat)abstract
    • High voltage electric pulses induce permeabilisation (i.e. electroporation) of cell membranes. Electric pulses also induce fusion of cells which are in contact. Contacts between cells can be established before electroporation, in so-called contact first or after electroporation in pulse first protocol. The lowest fusion yield was obtained by pulse first protocol (0.8%±0.3%) and it was only detected by phase contrast microscopy. Higher fusion yield detected by fluorescence microscopy was obtained by contact first protocol. The highest fusion yield (15%) was obtained by modified adherence method whereas fusion yield obtained by dielectrophoresis was lower (4%). The results are in agreement with current understanding of electrofusion process and with existing electrochemical models. Our data indicate that probability of stalk formation leading to fusion pores and cytoplasmic mixing is higher in contact first protocol where cells in contact are exposed to electric pulses. Another contribution of present study is the comparison of two detection methods. Although fusion yield can be more precisely determined with fluorescence microscopy we should note that by using this detection method single coloured fused cells cannot be detected. Therefore low fusion yields are more reliably detected by phase contrast microscopy.
  • Munthe, Christian, 1962 (författare)
  • The Price of Precaution and the Ethics of Risk
  • 2011
  • Bok (övrigt vetenskapligt)abstract
    • Since a couple of decades, the notion of a precautionary principle plays a central and increasingly influential role in international as well as national policy and regulation regarding the environment and the use of technology. Urging society to take action in the face of potential risks of human activities in these areas, the recent focus on climate change has further sharpened the importance of this idea. However, the idea of a precautionary principle has also been problematised and criticised by scientists, scholars and policy activists, and been accused of almost every intellectual sin imaginable: unclarity, impracticality, arbitrariness and moral as well as political unsoundness. In that light, the very idea of precaution as an ideal for policy making rather comes out as a dead end. On the basis of these contrasting starting points, Christian Munthe undertakes an innovative, in-depth philosophical analysis of what the idea of a precautionary principle is and should be about. A novel theory of the ethics of imposing risks is developed and used as a foundation for defending the idea of precaution in environmental and technological policy making against its critics, while at the same time avoiding a number of identified flaws. The theory is shown to have far-reaching consequences for areas such as bio-, information- and nuclear technology, and global environmental policy in areas such as climate change. The author argues that, while the price we pay for precaution must not be too high, we have to be prepared to pay it in order to act ethically defensible. A number of practical suggestions for precautionary regulation and policy making are made on the basis of this, and some challenges to basic ethical theory as well as consumerist societies, the global political order and liberal democracy are identified
  • Juth, Niklas, 1973, et al. (författare)
  • The Ethics of Screening in Health Care and Medicine: Serving Society or Serving the Patient?
  • 2012
  • Bok (övrigt vetenskapligt)abstract
    • Medical or health-oriented screening programs are amongst the most debated aspects of health care and public health practices in health care and public health ethics, as well as health policy discussions. In spite of this, most treatments of screening in the research literature restrict themselves to isolated scientific aspects, sometimes complemented by economic analyses or loose speculations regarding policy aspects. At the same time, recent advances in medical genetics and technology, as well as a rapidly growing societal focus on public health concerns, inspires an increase in suggested or recently started screening programs. This book involves an in-depth analysis of the ethical, political and philosophical issues related to health-oriented screening programs. It explores the considerations that arise when heath care interacts with other societal institutions on a large scale, as is the case with screening: What values may be promoted or compromised by screening programs? What conflicts of values do typically arise – both internally and in relation to the goals of health care, on the one hand, and the goals of public health and the general society, on the other? What aspects of screening are relevant for determining whether it should be undertaken or not and how it should be organised in order to remain defensible? What implications does the ethics of screening have for health care ethics as a whole? These questions are addressed by applying philosophical methods of conceptual analysis, as well as models and theories from moral and political philosophy, medical ethics, and public health ethics, to a large number of ongoing and proposed screening programs which makes this book the first comprehensive work on the ethics of screening. Analyses and suggestions are made that are of potential interest to health care staff, medical researchers, policy makers and the general public.
  • Munthe, Christian, 1962 (författare)
  • Will IVF ever be the norm?
  • 2014
  • Ingår i: Future of IVF - A Brave New World? ESHRE symposium, September 26-27, Stockholm.
  • Konferensbidrag (övrigt vetenskapligt)
  • Rems, Lea, et al. (författare)
  • Cell electrofusion using nanosecond electric pulses
  • 2013
  • Ingår i: Scientific Reports. - : Macmillan Publishers Ltd.. - 2045-2322. ; 3
  • Tidskriftsartikel (refereegranskat)abstract
    • Electrofusion is an efficient method for fusing cells using short-duration high-voltage electric pulses. However, electrofusion yields are very low when fusion partner cells differ considerably in their size, since the extent of electroporation (consequently membrane fusogenic state) with conventionally used microsecond pulses depends proportionally on the cell radius. We here propose a new and innovative approach to fuse cells with shorter, nanosecond (ns) pulses. Using numerical calculations we demonstrate that ns pulses can induce selective electroporation of the contact areas between cells (i.e. the target areas), regardless of the cell size. We then confirm experimentally on B16-F1 and CHO cell lines that electrofusion of cells with either equal or different size by using ns pulses is indeed feasible. Based on our results we expect that ns pulses can improve fusion yields in electrofusion of cells with different size, such as myeloma cells and B lymphocytes in hybridoma technology.
  • Hadrevi, Jenny, et al. (författare)
  • Myosin light chain and calcium regulating protein differences in chronic musculoskeletal neck and shoulder pain
  • 2016
  • Ingår i: Journal of Integrated Omnics. - : Proteomass Scientific Society. - 2182-0287. ; 6:1, s. 1-8
  • Tidskriftsartikel (refereegranskat)abstract
    • Proteomic screening analysis has detected myosin light chain (MLC) as a protein implied to be involved in chronic musculoskeletal neck and shoulder pain. Several analyses of MLC proteins have stated a difference in phosphorylation being the determining factor for protein activation hence altered contrability of the muscle in i.e. senescence. In continuation of a previous publication, this study is an attempt to analyze the different MLC isoforms by mass spectrometry and immune-analyses in myalgic and healthy trapezius muscle. In the present study no differences in phosphorylation level between the corresponding individual proteins were detected using LC-MSMS and immunoblotting; instead we assigned different isoforms of regulatory MLCs. To further elucidate the contrability: calcium (Ca2+) regulatory proteins, sarco(endo)plasmic reticulum Ca2+ ATPase 1 (SERCA-1) and calsequestrine (CSQ) were analyzed by western blot. The analysis revealed a significantly increased abundance of SERCA-1 protein in the myalgic muscle and a significantly increased abundance of CSQ in healthy muscle. Myalgic muscle contraction patterns have in previous studies shown to differ from healthy muscle which may be connected to the Ca2+ availability in the muscle. Here we present the proteomic characterization of differences in Ca2+ regulating proteins and particularly regulatory MLCs in trapezius muscle of women with chronic musculoskeletal neck and shoulder pain.
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