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- Tabiri, S, et al.
(författare)
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- 2021
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swepub:Mat__t
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| 4. |
- Bravo, L, et al.
(författare)
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- 2021
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swepub:Mat__t
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| 5. |
- Schael, S, et al.
(författare)
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Precision electroweak measurements on the Z resonance
- 2006
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Ingår i: Physics Reports. - : Elsevier BV. - 0370-1573 .- 1873-6270. ; 427:5-6, s. 257-454
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Forskningsöversikt (refereegranskat)abstract
- We report on the final electroweak measurements performed with data taken at the Z resonance by the experiments operating at the electron-positron colliders SLC and LEP. The data consist of 17 million Z decays accumulated by the ALEPH, DELPHI, L3 and OPAL experiments at LEP, and 600 thousand Z decays by the SLID experiment using a polarised beam at SLC. The measurements include cross-sections, forward-backward asymmetries and polarised asymmetries. The mass and width of the Z boson, m(Z) and Gamma(Z), and its couplings to fermions, for example the p parameter and the effective electroweak mixing angle for leptons, are precisely measured: m(Z) = 91.1875 +/- 0.0021 GeV, Gamma(Z) = 2.4952 +/- 0.0023 GeV, rho(l) = 1.0050 +/- 0.0010, sin(2)theta(eff)(lept) = 0.23153 +/- 0.00016. The number of light neutrino species is determined to be 2.9840 +/- 0.0082, in agreement with the three observed generations of fundamental fermions. The results are compared to the predictions of the Standard Model (SM). At the Z-pole, electroweak radiative corrections beyond the running of the QED and QCD coupling constants are observed with a significance of five standard deviations, and in agreement with the Standard Model. Of the many Z-pole measurements, the forward-backward asymmetry in b-quark production shows the largest difference with respect to its SM expectation, at the level of 2.8 standard deviations. Through radiative corrections evaluated in the framework of the Standard Model, the Z-pole data are also used to predict the mass of the top quark, m(t) = 173(+10)(+13) GeV, and the mass of the W boson, m(W) = 80.363 +/- 0.032 GeV. These indirect constraints are compared to the direct measurements, providing a stringent test of the SM. Using in addition the direct measurements of m(t) and m(W), the mass of the as yet unobserved SM Higgs boson is predicted with a relative uncertainty of about 50% and found to be less than 285 GeV at 95% confidence level. (c) 2006 Elsevier B.V. All rights reserved.
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- Khatri, C, et al.
(författare)
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Outcomes after perioperative SARS-CoV-2 infection in patients with proximal femoral fractures: an international cohort study
- 2021
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Ingår i: BMJ open. - : BMJ. - 2044-6055. ; 11:11, s. e050830-
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Tidskriftsartikel (refereegranskat)abstract
- Studies have demonstrated high rates of mortality in people with proximal femoral fracture and SARS-CoV-2, but there is limited published data on the factors that influence mortality for clinicians to make informed treatment decisions. This study aims to report the 30-day mortality associated with perioperative infection of patients undergoing surgery for proximal femoral fractures and to examine the factors that influence mortality in a multivariate analysis.SettingProspective, international, multicentre, observational cohort study.ParticipantsPatients undergoing any operation for a proximal femoral fracture from 1 February to 30 April 2020 and with perioperative SARS-CoV-2 infection (either 7 days prior or 30-day postoperative).Primary outcome30-day mortality. Multivariate modelling was performed to identify factors associated with 30-day mortality.ResultsThis study reports included 1063 patients from 174 hospitals in 19 countries. Overall 30-day mortality was 29.4% (313/1063). In an adjusted model, 30-day mortality was associated with male gender (OR 2.29, 95% CI 1.68 to 3.13, p<0.001), age >80 years (OR 1.60, 95% CI 1.1 to 2.31, p=0.013), preoperative diagnosis of dementia (OR 1.57, 95% CI 1.15 to 2.16, p=0.005), kidney disease (OR 1.73, 95% CI 1.18 to 2.55, p=0.005) and congestive heart failure (OR 1.62, 95% CI 1.06 to 2.48, p=0.025). Mortality at 30 days was lower in patients with a preoperative diagnosis of SARS-CoV-2 (OR 0.6, 95% CI 0.6 (0.42 to 0.85), p=0.004). There was no difference in mortality in patients with an increase to delay in surgery (p=0.220) or type of anaesthetic given (p=0.787).ConclusionsPatients undergoing surgery for a proximal femoral fracture with a perioperative infection of SARS-CoV-2 have a high rate of mortality. This study would support the need for providing these patients with individualised medical and anaesthetic care, including medical optimisation before theatre. Careful preoperative counselling is needed for those with a proximal femoral fracture and SARS-CoV-2, especially those in the highest risk groups.Trial registration numberNCT04323644
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- Fuxe, K, et al.
(författare)
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Heterodimers and receptor mosaics of different types of G-protein-coupled receptors
- 2008
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Ingår i: Physiology (Bethesda, Md.). - : American Physiological Society. - 1548-9213 .- 1548-9221. ; 23:6, s. 322-332
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Tidskriftsartikel (refereegranskat)abstract
- Through an assembly of interacting GPCRs, heterodimers and high-order heteromers (termed receptor mosaics) are formed and lead to changes in the agonist recognition, signaling, and trafficking of participating receptors via allosteric mechanisms, sometimes involving the appearance of cooperativity. This field has now become a major research area, and this review deals with their physiology being integrators of receptor signaling in the CNS and their use as targets for novel drug development based on their unique pharmacology.
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- Goncalves-Pereira, M, et al.
(författare)
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[Needs for Care and Service Use in Dementia: Baseline Assessment of Portuguese Participants in the Actifcare Cohort Study]
- 2019
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Ingår i: Acta medica portuguesa. - : Ordem dos Medicos. - 1646-0758 .- 0870-399X. ; 32:5, s. 355-367
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Tidskriftsartikel (refereegranskat)abstract
- Introdução: As pessoas com demência e os seus familiares deveriam ter acesso atempado a cuidados formais na comunidade (centros de dia, apoio domiciliário). O projecto EU-Actifcare investigou o acesso/utilização destes serviços em países europeus. Descrevemos a implementação do estudo de coorte e a avaliação inicial em Portugal, com foco nas necessidades de cuidados e recurso aos serviços.Material e Métodos: Selecionámos uma amostra de conveniência de 66 pessoas com diagnóstico de demência ligeira a moderada (residindo na comunidade sem cuidados formais relevantes) e respetivos familiares-cuidadores. A avaliação (clínico-funcional e social) incluiu os instrumentos Camberwell Assessment of Need for the Elderly e Resource Utilization in Dementia.Resultados: Identificámos necessidades não-cobertas dos doentes (média 1,1; DP = 1,7), principalmente de companhia (23% dos casos), sofrimento psicológico (20%) e atividades diárias (14%). Os familiares-cuidadores dedicavam 150 minutos/dia (mediana) à prestação de cuidados e 44% apresentavam necessidades não-cobertas de sofrimento psicológico. Quando havia problemas de acesso/utilização dos serviços de saúde e sociais na comunidade, estes estavam frequentemente relacionados com recusa ou desconhecimento de utentes/familiares.Discussão: A seleção dos participantes não foi fácil, pela especificidade dos critérios adotados. Não almejando representatividade nacional, recrutámos uma amostra típica de pessoas em estádios ligeiros a moderados de demência, em serviços e regiões diferentes. Nalguns casos, encontrámos necessidades não-cobertas e repercussões familiares que já justificariam respostas de serviços na comunidade, não fossem os problemas de acesso/utilização.Conclusão: Na área das demências, existem dificuldades no acesso atempado e utilização efectiva de cuidados formais, coexistindo com uma cobertura menor de necessidades específicas.
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| 34. |
- Guidolin, D, et al.
(författare)
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A New Integrative Theory of Brain-Body-Ecosystem Medicine: From the Hippocratic Holistic View of Medicine to Our Modern Society
- 2019
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Ingår i: International journal of environmental research and public health. - : MDPI AG. - 1660-4601. ; 16:17
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Tidskriftsartikel (refereegranskat)abstract
- Humans are increasingly aware that their fate will depend on the wisdom they apply in interacting with the ecosystem. Its health is defined as the condition in which the ecosystem can deliver and continuously renew its fundamental services. A healthy ecosystem allows optimal interactions between humans and the other biotic/abiotic components, and only in a healthy ecosystem can humans survive and efficiently reproduce. Thus, both the human and ecosystem health should be considered together in view of their interdependence. The present article suggests that this relationship could be considered starting from the Hippocrates (460 BC–370 BC) work “On Airs, Waters, and Places” to derive useful medical and philosophical implications for medicine which is indeed a topic that involves scientific as well as philosophical concepts that implicate a background broader than the human body. The brain-body-ecosystem medicine is proposed as a new more complete approach to safeguarding human health. Epidemiological data demonstrate that exploitation of the environment resulting in ecosystem damage affects human health and in several instances these diseases can be detected by modifications in the heart-brain interactions that can be diagnosed through the analysis of changes in heart rate variability.
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| 44. |
- Niemi, MEK, et al.
(författare)
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- 2021
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swepub:Mat__t
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| 45. |
- Kanai, M, et al.
(författare)
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- 2023
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swepub:Mat__t
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