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  • Resultat 88721-88730 av 166270
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88721.
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88722.
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88723.
  • Holmberg, Christopher, 1984 (författare)
  • Using the Blogosphere to Promote Disputed Diets: The Swedish Low-Carb High-Fat Movement
  • 2017
  • Ingår i: Politics, Protest, and Empowerment in Digital Spaces. - : IGI Global. - 1522518622 ; , s. 10-30
  • Bokkapitel (refereegranskat)abstract
    • Widely influential low-carb high fat diet (LCHF) promoters have been using social media to marshal support when contesting the nutritional recommendations provided by the National Swedish Food Agency (NFA). Political events led to an increased public awareness of the LCHF diet, which in turn provided the advocates with vital opportunities to contest the established nutritional authorities. This study explored how three of the leading promoters transact their criticisms of nutrition authorities, and how they use social media for this purpose. A longitudinal thematic analysis of the diet promoters’ social media presence demonstrates that they made full use of media convergence to form opinion and attain their goals. The LCHF promoters utilized a rhetorical arsenal based in science popularization to appeal to the public and social media allowed for the spread of anecdotal evidence of individual dieters. Interestingly, social media also facilitated the advocates to network their expertise and to start science initiatives evolving from merely anecdotal methods to conventional approaches.
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88724.
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88725.
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88726.
  • Holmberg, Christopher, 1984 (författare)
  • Why we need to discuss statistical significance and p-values (again): Addressing the underlying issue of different probability interpretations and actionable recommendations
  • 2024
  • Ingår i: Nordic journal of nursing research. - 2057-1585 .- 2057-1593.
  • Tidskriftsartikel (refereegranskat)abstract
    • Nursing practices must be evidence-based, yet grappling with statistics proves challenging, hampering the integration of research into patient care. Statistics, a branch of mathematics, is often viewed solely as a method across various disciplines, including nursing, focusing on analyzing and inferring from measurable data. As with other methods, it is easy to overlook underlying assumptions. Statistical significance and p-values are commonly used and misused concepts in statistics. While extensively discussed, these issues receive less attention in nursing. Papers addressing them often adopt practical approaches, overlooking the root cause: a misunderstanding of their meaning. To address this, I aim to clarify the fundamental concept underpinning these issues – probability – by defining its two main types, each carrying implications for statistical significance and p-values. In conclusion, I advocate for the continued use of p-values in nursing but emphasize the need for critical considerations in doing so.
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88727.
  • Holmberg, Erik, 1951 (författare)
  • Methodological aspects on excess cancer riskafter exposure to ionizing radiation
  • 2004
  • Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
    • Aims. The aims of this study were to establish a cohort of persons treated with radiotherapy for skin haemangioma in childhood and study the excess risk of cancer after exposure to ionizing radiation. Special attention was paid to ascertainment bias in the excess of parathyroid adenomas and the confounding of reproductive history in the excess of breast cancer among the women in the cohort. A further aim was to analyse and compare excess risk estimates for breast cancer in eight cohorts of women from Japan, North America and Sweden who had been exposed to ionizing radiation of different quality and were living in areas with different background rates of breast cancer.Methods. The concept of epidemiological observational study by cohort analyses was applied. Follow-up was managed through record linkage with Swedish population registers. The analyses of the excess cancer risk were performed by Poisson regression of excess relative risk (ERR) and excess absolute risk (EAR) models accounting for background cancer rates, absorbed dose and other risk factors while allowing for time-dependent variation. For parathyroid adenomas, clinical records were scrutinized to detect differential diagnostic intensity (ascertainment bias), according to earlier exposure to ionizing radiation.Results. An overall excess cancer incidence of 20%, i.e. 228 excess cases, was observed in the haemangioma cohort. For parathyroid adenomas, there was a statistically significant excess incidence of 76%, and an ERR per gray (ERR/Gy) of 1.57, after adjustments made for ascertainment bias. The excess incidence for breast cancer was 25%, 2% of which could be explained by confounding of reproductive history, and a further 12% by the exposure to ionizing radiation (ERR/Gy = 0.35). No simple unified summary could describe the excess breast cancer risks found in the eight studied cohorts of women exposed to different radiation quality.Conclusions. A cohort of radiation-exposed persons was established. There was an excess cancer risk in the cohort, which could in part be explained by a dose-response effect of ionizing radiation. More information on the excess cancer risk and dose-response effect will be gained from the cohort in the future, as the median age at the end of follow-up was 48 years, which implies that 39% of the person-years at risk in the cohort remain to be observed.
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88728.
  • Holmberg, Gustav, 1967 (författare)
  • Beräkningsarbete
  • 2018
  • Ingår i: Johan Kärnfelt, Karl Grandin och Solveig Jülich red., Kunskap i rörelse: Kungl. Vetenskapsakademien och skapandet av det moderna samhället. - Göteborg och Stockholm : Makadam. - 0081-9956. - 9789170612626 ; , s. 482-486
  • Bokkapitel (övrigt vetenskapligt/konstnärligt)
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88729.
  • Holmberg, Gustav, 1967 (författare)
  • Framtiden : historikerna blickar framåt
  • 2017
  • Ingår i: Beredd till bådadera : Lunds universitet och omvärlden / Gunnar Broberg & David Dunér (red.). - Lund : Lunds universitet. - 1401-1301. - 9789198370621 ; , s. 280-302
  • Bokkapitel (övrigt vetenskapligt/konstnärligt)
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88730.
  • Holmberg, Gustav, 1967 (författare)
  • Framtidshistorikerna
  • 2017
  • Ingår i: Konferenspresentation på sessionen "Tillbaka till framtiden: Ett rundabordssamtal om efterkrigstidens framtidshistoria", Svenska Historikermötet, 10–12 maj 2017, Sundsvall.
  • Konferensbidrag (övrigt vetenskapligt/konstnärligt)
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