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- Cöster, Mathias, 1969-, et al.
(författare)
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Enabling sustainable visits : Introduction
- 2023
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Ingår i: Enabling Sustainable Visits. - Visby : Uppsala University. - 9789150630145 - 9789150630237
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Bokkapitel (övrigt vetenskapligt/konstnärligt)
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- Karlsson, Kristin, et al.
(författare)
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Retrospective Cohort Study of Bronchial Doses and Radiation-Induced Atelectasis After Stereotactic Body Radiation Therapy of Lung Tumors Located Close to the Bronchial Tree
- 2013
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Ingår i: International Journal of Radiation Oncology, Biology, Physics. - : Elsevier BV. - 0360-3016 .- 1879-355X. ; 87:3, s. 590-595
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Tidskriftsartikel (refereegranskat)abstract
- Purpose: To evaluate the dose-response relationship between radiation-induced atelectasis after stereotactic body radiation therapy (SBRT) and bronchial dose. Methods and Materials: Seventy-four patients treated with SBRT for tumors close to main, lobar, or segmental bronchi were selected. The association between incidence of atelectasis and bronchial dose parameters (maximum point-dose and minimum dose to the high-dose bronchial volume [ranging from 0.1 cm(3) up to 2.0 cm(3)]) was statistically evaluated with survival analysis models. Results: Prescribed doses varied between 4 and 20 Gy per fraction in 2-5 fractions. Eighteen patients (24.3%) developed atelectasis considered to be radiation-induced. Statistical analysis showed a significant correlation between the incidence of radiation-induced atelectasis and minimum dose to the high-dose bronchial volumes, of which 0.1 cm(3) (D-0.1cm3) was used for further analysis. The median value of D-0.1cm3 (alpha/beta = 3 Gy) was EQD(2,LQ) = 147 Gy(3) (range, 20-293 Gy(3)). For patients who developed atelectasis the median value was EQD(2,LQ) = 210 Gy(3), and for patients who did not develop atelectasis, EQD(2,LQ) = 105 Gy(3). Median time from treatment to development of atelectasis was 8.0 months (range, 1.1-30.1 months). Conclusion: In this retrospective study a significant dose-response relationship between the incidence of atelectasis and the dose to the high-dose volume of the bronchi is shown.
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| 5. |
- Nilsson, Jan Åke, et al.
(författare)
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A prudent hoarder : Effects of long-term hoarding in the European nuthatch, Sitta Europaea
- 1993
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Ingår i: Behavioral Ecology. - : Oxford University Press (OUP). - 1045-2249 .- 1465-7279. ; 4:4, s. 369-373
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Tidskriftsartikel (refereegranskat)abstract
- Although hoarding has been studied intensively for many decades, few studies have attempted to measure its actual fitness consequences. To fill this gap, we used ptilochronology, the growth of replacement feathers as a measure of nutritional status, and thus a reflection of starvation risk, of individual European nuthatches (Sitta europaea) during winter. We found that nuthatches are long-term hoarders, retrieving stored food up to at least 98 days after storing it. Long-term hoarding enhanced the nutritional status of individual birds significantly because those individuals experimentally given an opportunity to store seeds during autumn regrew plucked rectrices faster and larger than did control birds. Nuthatches used their stored seeds prudently by adjusting the amounts they ate to meet their requirements, as determined by ambient temperatures. Nuthatches refrained from using stored food during periods of relatively benign conditions so they could use the food during periods of more severe conditions.
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| 7. |
- Zandian, Arash, et al.
(författare)
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Untargeted screening for novel autoantibodies with prognostic value in first-episode psychosis
- 2017
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Ingår i: Translational Psychiatry. - : Nature Publishing Group. - 2158-3188. ; 7
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Tidskriftsartikel (refereegranskat)abstract
- Immunological and inflammatory reactions have been suggested to have a role in the development of schizophrenia, a hypothesis that has recently been supported by genetic data. The aim of our study was to perform an unbiased search for autoantibodies in patients with a first psychotic episode, and to explore the association between any seroreactivity and the development of a Diagnostic and Statistical Manual of Mental Disorders, fourth edition (DSM-IV) disorder characterized by chronic or relapsing psychotic symptoms. We collected plasma samples from 53 patients when they were treated for their first-episode psychosis, and 41 non-psychotic controls, after which the patients were followed for a mean duration of 7 years. Thirty patients were diagnosed with schizophrenia, delusional disorder, schizoaffective disorder, bipolar disorder or a long-term unspecified nonorganic psychosis during follow-up, whereas 23 patients achieved complete remission. At the end of follow-up, plasma samples were analyzed for IgG reactivity to 2304 fragments of human proteins using a multiplexed affinity proteomic technique. Eight patient samples showed autoreactivity to the N-terminal fragment of the PAGE (P antigen) protein family (PAGE2B/PAGE2/PAGE5), whereas no such autoreactivity was seen among the controls. PAGE autoreactivity was associated with a significantly increased risk of being diagnosed with schizophrenia during follow-up (odds ratio 6.7, relative risk 4.6). An immunohistochemistry analysis using antisera raised against the N-terminal fragment stained an unknown extracellular target in human cortical brain tissue. Our findings suggest that autoreactivity to the N-terminal portion of the PAGE protein family is associated with schizophrenia in a subset of patients with first-episode psychosis.
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