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- Abbasi, Rasha, et al.
(författare)
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IceCube search for neutrinos from GRB 221009A
- 2023
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Ingår i: Proceedings of 38th International Cosmic Ray Conference (ICRC 2023). - : Sissa Medialab Srl.
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Konferensbidrag (refereegranskat)abstract
- GRB 221009A is the brightest Gamma Ray Burst (GRB) ever observed. The observed extremelyhigh flux of high and very-high-energy photons provide a unique opportunity to probe the predictedneutrino counterpart to the electromagnetic emission. We have used a variety of methods to searchfor neutrinos in coincidence with the GRB over several time windows during the precursor, promptand afterglow phases of the GRB. MeV scale neutrinos are studied using photo-multiplier ratescalers which are normally used to search for galactic core-collapse supernovae neutrinos. GeVneutrinos are searched starting with DeepCore triggers. These events don’t have directionallocalization, but instead can indicate an excess in the rate of events. 10 GeV - 1 TeV and >TeVneutrinos are searched using traditional neutrino point source methods which take into accountthe direction and time of events with DeepCore and the entire IceCube detector respectively. The>TeV results include both a fast-response analysis conducted by IceCube in real-time with timewindows of T0 − 1 to T0 + 2 hours and T0 ± 1 day around the time of GRB 221009A, as well asan offline analysis with 3 new time windows up to a time window of T0 − 1 to T0 + 14 days, thelongest time period we consider. The combination of observations by IceCube covers 9 ordersof magnitude in neutrino energy, from MeV to PeV, placing upper limits across the range forpredicted neutrino emission.
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| 2. |
- O'Sullivan, Anna
(författare)
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Undocumented migrants’ access to healthcare in Sweden, and the impact of Act 2013:407
- 2023
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Ingår i: Nursing Ethics. - 0969-7330 .- 1477-0989.
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Tidskriftsartikel (refereegranskat)abstract
- Background Research shows that undocumented migrants have difficulties in accessing healthcare. Act 2013:407 came into force in 2013 and entitled undocumented migrants to healthcare that cannot be deferred. To date, studies about undocumented migrants’ access to care in Sweden and the impact of Act 2013:407 are sparse. Hence, the aim of this study was to describe professionals’ experiences of access to healthcare for undocumented migrants in Sweden and the impact of Act 2013:407.Methods A qualitative design with semi-structured interviews was employed. Nine interviews were carried out in 2015 with nurses at two NGO healthcare centres for undocumented migrants – and an additional seven interviews in 2022 with staff at an NGO healthcare centre for undocumented migrants and personnel at a regional health and medical care administration. Interpretive description was used for the analyses.Ethical considerations Permission to carry out the study was obtained from managers at the participating NGOs and the regional health and medical care administration. Participants received verbal and written information about the study, and informed consent was obtained from all participants.Findings Six categories emerged from the analysis: Changes since the Act was introduced, General problems with healthcare access, Care for undocumented migrants – politics and social economy, Lack of knowledge, ‘Healthcare that cannot be deferred’ and Being an undocumented migrant.Conclusion Undocumented migrants’ social needs are as great as their needs for healthcare. Healthcare staff are burdened with healthcare cost considerations which affect their judgement of care provision and prioritization. Healthcare staff attitudes towards undocumented migrants affect their access to healthcare. Undocumented migrants in need of healthcare are especially vulnerable due to their legal status, being ill and the fear of being reported and deported. To assure undocumented migrants’ access to healthcare and maintain healthcare ethics, the only possible solution is to provide healthcare based on needs.
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