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Sökning: WFRF:(Westin Anna) > Uppsala universitet

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1.
  • Dahlström, Anna, et al. (författare)
  • Remnant habitats for grassland species in an abandoned Swedish agricultural landscape
  • 2010
  • Ingår i: Applied Vegetation Science. - 1402-2001 .- 1654-109X. ; 13:3, s. 305-314
  • Tidskriftsartikel (refereegranskat)abstract
    • Questions: Which factors influence the persistence of vascular grassland plants in long-abandoned (at least 50 yr) arable fields and meadows? What might be the implications of current levels of species richness on abandoned arable fields and meadows for future restoration? Location: Forested highlands of Kilsbergen, south central Sweden. Methods: The abundance of all vascular plant species was investigated in three habitat types: former arable fields, hay meadows and outlands (pastures) at 27 farms, abandoned for either approximately 50 yr or 90 yr. Time since abandonment, tree cover, soil depth, degree of soil podsol development, size of the infield area and two measures of connectivity were used as predictors for species richness and species composition. Results: Former outland had denser tree cover, fewer species and fewer grassland species than former arable fields and hay meadows, irrespective of time since abandonment. Former hay meadows and arable fields with a longer time since abandonment were less rich in species, more wooded and had greater podsolization than meadows and fields abandoned at a later stage. Species richness was higher in hay meadows and arable fields at farms with larger infield area and deeper soils compared with farms with smaller infield area and shallower soils. The greatest richness of species and most open habitat were former arable fields at larger farms abandoned 50 yr before the study. Former arable fields had the highest number of grassland species. Conclusion: After 50 yr of abandonment, former arable fields were the most important remnant habitats for grassland species and may be a more promising target for restoration than formerly managed grasslands.
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2.
  • Westin, Johan, et al. (författare)
  • Management of influenza–updated Swedish guidelines for antiviral treatment
  • 2023
  • Ingår i: Infectious Diseases. - : Taylor & Francis Group. - 2374-4235 .- 2374-4243. ; 55:10, s. 725-737
  • Tidskriftsartikel (refereegranskat)abstract
    • Influenza causes seasonal epidemics of respiratory infection in all parts of the world. Manifestations of influenza range from mild upper to severe lower respiratory tract infection. Medical risk groups are defined by factors predisposing for development of severe disease and are recommended annual vaccination as a protective measure. The previous Swedish treatment guidelines for influenza were issued in 2011, and a review of current evidence was deemed relevant. An important reason to revisit the guidelines is the recent approval of a novel drug for influenza treatment, baloxavir. Updated Swedish evidence-based guidelines created by a group of experts from various research areas, for the management of influenza are presented here. The work has been made in collaboration with the Public Health Agency of Sweden and the Swedish Reference Group for AntiViral therapy (RAV). The updated guidelines include guidelines for diagnostics, treatment and prophylaxis in special groups, including management of pregnant women and children with influenza. A new section about infection control has been added. Pharmacological treatment is covered in detail with regards to indication and dosage. Additionally, drug resistance and environmental aspects are discussed.
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3.
  • Benavides, Raquel, et al. (författare)
  • The GenTree Leaf Collection : Inter- and intraspecific leaf variation in seven forest tree species in Europe
  • 2021
  • Ingår i: Global Ecology and Biogeography. - : John Wiley & Sons. - 1466-822X .- 1466-8238. ; 30:3, s. 590-597
  • Tidskriftsartikel (refereegranskat)abstract
    • Motivation Trait variation within species can reveal plastic and/or genetic responses to environmental gradients, and may indicate where local adaptation has occurred. Here, we present a dataset of rangewide variation in leaf traits from seven of the most ecologically and economically important tree species in Europe. Sample collection and trait assessment are embedded in the GenTree project (EU-Horizon 2020), which aims at characterizing the genetic and phenotypic variability of forest tree species to optimize the management and sustainable use of forest genetic resources. Our dataset captures substantial intra- and interspecific leaf phenotypic variability, and provides valuable information for studying the relationship between ecosystem functioning and trait variability of individuals, and the response and resilience of species to environmental changes. Main types of variable contained We chose morphological and chemical characters linked to trade-offs between acquisition and conservation of resources and water use, namely specific leaf area, leaf size, carbon and nitrogen content and their ratio, and the isotopic signature of stable isotope C-13 and N-15 in leaves. Spatial location and grain We surveyed between 18 and 22 populations per species, 141 in total, across Europe. Time period Leaf sampling took place between 2016 and 2017. Major taxa and level of measurement We sampled at least 25 individuals in each population, 3,569 trees in total, and measured traits in 35,755 leaves from seven European tree species, i.e. the conifers Picea abies, Pinus pinaster and Pinus sylvestris, and the broadleaves Betula pendula, Fagus sylvatica, Populus nigra and Quercus petraea. Software format The data files are in ASCII text, tab delimited, not compressed.
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4.
  • Björklund, Peyman, et al. (författare)
  • The internally truncated LRP5 receptor presents a therapeutic target in breast cancer
  • 2009
  • Ingår i: PloS one. - : Public Library of Science (PLoS). - 1932-6203. ; 4:1, s. e4243-
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: Breast cancer is a common malignant disease, which may be caused by a number of genes deregulated by genomic or epigenomic events. Deregulated WNT/beta-catenin signaling with accumulation of beta-catenin is common in breast tumors, but mutations in WNT signaling pathway components have been rare. An aberrantly spliced internally truncated LRP5 receptor (LRP5Delta666-809, LRP5Delta) was shown recently to be resistant to DKK1 inhibition, and was required for beta-catenin accumulation in hyperparathyroid tumors and parathyroid tumor growth. METHODOLOGY/PRINCIPAL FINDINGS: Here we show, by reverse transcription PCR and Western blot analysis, that LRP5Delta is frequently expressed in breast tumors of different cancer stage (58-100%), including carcinoma in situ and metastatic carcinoma. LRP5Delta was required in MCF7 breast cancer cells for the non-phosphorylated active beta-catenin level, transcription activity of beta-catenin, cell growth in vitro, and breast tumor growth in a xenograft SCID mouse model. WNT3 ligand, but not WNT1 and WNT3A augmented the endogenous beta-catenin activity of MCF7 cells in a DKK1-insensitive manner. Furthermore, an anti-LRP5 antibody attenuated beta-catenin activity, inhibited cell growth, and induced apoptosis in LRP5Delta-positive MCF7 and T-47D breast cancer cells, but not in control cells. CONCLUSIONS/SIGNIFICANCE: Our results suggest that the LRP5Delta receptor is strongly implicated in mammary gland tumorigenesis and that its aberrant expression present an early event during disease progression. LRP5 antibody therapy may have a significant role in the treatment of breast cancer.
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6.
  • Chapman, Adam, et al. (författare)
  • What is historical game studies?
  • 2017
  • Ingår i: Rethinking history. - : Taylor & Francis. - 1364-2529 .- 1470-1154. ; 21:3, s. 358-371
  • Tidskriftsartikel (refereegranskat)
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7.
  • Crumley, Carole L., et al. (författare)
  • Is There a Future for the Past?
  • 2018
  • Ingår i: Issues and Concepts in Historical Ecology. - : Cambridge University Press. - 9781108420983 - 9781108355780 ; , s. 1-9
  • Konferensbidrag (refereegranskat)
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8.
  • Erikson, Marja, 1968- (författare)
  • Krediter i lust och nöd : Skattebönder i Torstuna härad, Västmanlands län, 1770‒1870
  • 2018
  • Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
    • This thesis analyses the role of loans and credit for Swedish freeholders (skattebönder) from 1770 to 1870. Particular emphasis is placed on the importance of credit for investments to improve agricultural operations, acquire land and respond to rural crises from the household perspective. Three parishes in Mälardalen form the area under investigation. Probate inventories after freeholders together with title deeds and mortgages are the most important source material of the study.The study shows that the way freeholders used credit changed in connection to changing institutional circumstances and shifting rural economic conditions. At the end of the eighteenth century, freeholders’ farming was profitable. The households generally had rather small debts during this period and credits were primarily used for daily transactions. Agriculture expanded in the district until 1815, but this expansion was followed by weaker growth with declining profitability for the freeholders up until around 1850. From 1815, the credit market changed as the Swedish National Bank started to offer beneficial loans. The debts held by freeholders grew rapidly from the 1810s up until about 1850. It is in the thesis shown that the rising indebtedness was caused by both a greater need for capital and by a change in the supply of credit. Land prices increased during the good years and remained at a high level. The households on average made larger land acquisitions than before, which required more capital. Declining profitability in agriculture and crop failures meant that credits were needed to cover income losses and to maintain a material standard. Finally, the availability of preferential bank credits made the freeholders borrowing more. The loans from the National Bank could be seen as a substitute for the limited opportunities to reclaim land in the district. With new loans, households could acquire more land, which was the only way to increase the households' income. However, this with necessity resulted in a continuous reduction of the number of landowners. This process was accentuated in the 1820s and 1840s, when a series of bankruptcies occurred among the landowning farmers.
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9.
  • Foka, Anna, 1981-, et al. (författare)
  • Introduction to the DHQ Special Issue : Digital Technology in the Study of the Past
  • 2018
  • Ingår i: Digital Humanities Quarterly. - Boston : Alliance for Digital Humanities Organisations. - 1938-4122. ; 12:3
  • Tidskriftsartikel (refereegranskat)abstract
    • Digital technology is transforming the assemblage and dissemination of historical information. Museums, libraries, archives, and universities increasingly modify their digital research infrastructures in order to make data open and available (see [Crane, Seales, and Terras 2009]; [Smithies 2014]; [Terras, Nyhan, and Vanhoutte 2013]; cf [Foka et al. 2017]). The imminent assessment and representation of historical data has admittedly challenged the boundaries of historical knowledge and generated new research questions [Drucker 2013] [Nygren, Foka, and Buckland 2014] #nygren2016 [Westin 2014] #westin2015[Chapman, Foka, and Westin 2016] [Foka and Arvidsson 2016]. The process of reconstructing, visualizing and rendering historical data has equally developed together with technology [Westin, Foka, and Chapman 2018]. This is the case in both academic and heritage contexts and in less immediately obvious popular uses, such as the increasingly significant presence and use of history within video games [Chapman 2016]. Regardless of specific context, as this collection of articles shows, the process of digitally capturing and representing historical data is often analogous to and determined by the digital platform used.
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10.
  • Germovsek, Eva, et al. (författare)
  • A Time-to-Event Model Relating Integrated Craving to Risk of Smoking Relapse Across Different Nicotine Replacement Therapy Formulations
  • 2021
  • Ingår i: Clinical Pharmacology and Therapeutics. - : John Wiley & Sons. - 0009-9236 .- 1532-6535. ; 109:2, s. 416-423
  • Tidskriftsartikel (refereegranskat)abstract
    • Smoking increases the risk of cancer and other diseases, causing an estimated 7 million deaths per year. Nicotine replacement therapy (NRT) reduces craving for smoking, therefore, increasing an individual's probability to remain abstinent. In this work, we for the first time quantitatively described the relationship between craving and smoking abstinence, using retrospectively collected data from 19 studies, including 3 NRT formulations (inhaler, mouth spray, and patch) and a combination of inhaler and patch. Smokers motivated to quit were included in the NRT or placebo arms. Integrated craving (i.e., craving over a period of time) was assessed with 4-category, 5-category, or 100-mm visual analogue scale. The bounded integer model was used to assess latent craving from all scales. A time-to-event model linked predicted integrated craving to the hazard of smoking relapse. Available data included 9,323 adult subjects, observed for 3 weeks up to 2 years. At the study end, 9% (11% for NRT and 5% for placebo), on average, remained abstinent according to the protocol definition. A Gompertz-Makeham hazard best described the data, with a hazard of smoking relapse decreasing over time. Latent integrated craving was positively related to the hazard of smoking relapse, through a sigmoidal maximum effect function. For the same craving, being on NRT was found to reduce the hazard of relapse by an additional 30% compared with placebo. This work confirmed that low craving is associated with a high probability of remaining smoking abstinent and that NRT, in addition to reducing craving, increases the probability of remaining smoking abstinent.
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