| 1. |
- Jung, Christian, et al.
(författare)
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A comparison of very old patients admitted to intensive care unit after acute versus elective surgery or intervention
- 2019
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Ingår i: Journal of critical care. - : W B SAUNDERS CO-ELSEVIER INC. - 0883-9441 .- 1557-8615. ; 52, s. 141-148
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Tidskriftsartikel (refereegranskat)abstract
- Background: We aimed to evaluate differences in outcome between patients admitted to intensive care unit (ICU) after elective versus acute surgery in a multinational cohort of very old patients (80 years; VIP). Predictors of mortality, with special emphasis on frailty, were assessed.Methods: In total, 5063 VIPs were induded in this analysis, 922 were admitted after elective surgery or intervention, 4141 acutely, with 402 after acute surgery. Differences were calculated using Mann-Whitney-U test and Wilcoxon test. Univariate and multivariable logistic regression were used to assess associations with mortality.Results: Compared patients admitted after acute surgery, patients admitted after elective surgery suffered less often from frailty as defined as CFS (28% vs 46%; p < 0.001), evidenced lower SOFA scores (4 +/- 5 vs 7 +/- 7; p < 0.001). Presence of frailty (CFS >4) was associated with significantly increased mortality both in elective surgery patients (7% vs 12%; p = 0.01), in acute surgery (7% vs 12%; p = 0.02).Conclusions: VIPs admitted to ICU after elective surgery evidenced favorable outcome over patients after acute surgery even after correction for relevant confounders. Frailty might be used to guide clinicians in risk stratification in both patients admitted after elective and acute surgery.
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| 2. |
- Beal, Jacob, et al.
(författare)
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Robust estimation of bacterial cell count from optical density
- 2020
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Ingår i: Communications Biology. - : Springer Science and Business Media LLC. - 2399-3642. ; 3:1
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Tidskriftsartikel (refereegranskat)abstract
- Optical density (OD) is widely used to estimate the density of cells in liquid culture, but cannot be compared between instruments without a standardized calibration protocol and is challenging to relate to actual cell count. We address this with an interlaboratory study comparing three simple, low-cost, and highly accessible OD calibration protocols across 244 laboratories, applied to eight strains of constitutive GFP-expressing E. coli. Based on our results, we recommend calibrating OD to estimated cell count using serial dilution of silica microspheres, which produces highly precise calibration (95.5% of residuals <1.2-fold), is easily assessed for quality control, also assesses instrument effective linear range, and can be combined with fluorescence calibration to obtain units of Molecules of Equivalent Fluorescein (MEFL) per cell, allowing direct comparison and data fusion with flow cytometry measurements: in our study, fluorescence per cell measurements showed only a 1.07-fold mean difference between plate reader and flow cytometry data.
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| 3. |
- Marchi, Mattia, et al.
(författare)
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Experience of discrimination during COVID-19 pandemic : the impact of public health measures and psychological distress among refugees and other migrants in Europe
- 2022
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Ingår i: BMC Public Health. - : Springer Nature. - 1471-2458. ; 22
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Tidskriftsartikel (refereegranskat)abstract
- Background: The COVID-19 pandemic has had a disproportionately hard impact on refugees and other migrants who are often exposed to the virus with limited means to protect themselves. We tested the hypothesis that during the COVID-19 pandemic, refugees and other migrants have suffered a negative impact on mental health and have been unjustly discriminated for spreading the disease in Europe (data collection from April to November 2020).Methods: Participants in the ApartTogether Survey (N = 8297, after listwise deletion of missing items final N = 3940) provided data regarding to their difficulties to adhere to preventive recommendations against COVID-19 infection (CARE), self-perceived stigmatization (SS), and psychological distress (PD). Structural Equation Modeling was used to investigate PD as a mediator in the pathway linking CARE to SS, while adjusting for the housing and residence status. To improve confidence in the findings, single hold-out sample cross-validation was performed using a train/test split ratio of 0.8/0.2.Results: In the exploratory set (N = 3159) SS was associated with both CARE (B = 0.200, p < 0.001) and PD (B = 0.455, p < 0.001). Moreover, PD was also associated with CARE (B = 0.094, p = 0.001) and mediated the effect of CARE on SS (proportion mediated = 17.7%, p = 0.001). The results were successfully replicated in the confirmation set (N = 781; total effect = 0.417, p < 0.001; proportion mediated = 29.7%, p < 0.001). Follow-up analyses also found evidence for an opposite effect (i.e., from SS to CARE, B = 0.132; p < 0.001), suggesting that there might be a vicious circle between the self-perceived stigmatization and the access to health care and the use of preventive measures against COVID-19 infection.Conclusions: Refugees and other migrants who had more difficulties in accessing health care and preventive measures against COVID-19 infection experienced worse mental health and increased discrimination. These negative effects appeared to be stronger for those with more insecure housing and residence status, highlighting from one side the specific risk of insecure housing in the impact of COVID-19 upon mental health and infection protection, and for another side the need to proper housing as a strategy to prevent both COVID-19 and mental distress.
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| 4. |
- Roskam, Isabelle, et al.
(författare)
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Parental Burnout Around the Globe : a 42-Country Study
- 2021
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Ingår i: Affective science. - : Springer Science and Business Media LLC. - 2662-205X .- 2662-2041. ; 2, s. 58-79
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Tidskriftsartikel (refereegranskat)abstract
- High levels of stress in the parenting domain can lead to parental burnout, a condition that has severe consequences for both parents and children. It is not yet clear, however, whether parental burnout varies by culture, and if so, why it might do so. In this study, we examined the prevalence of parental burnout in 42 countries (17,409 parents; 71% mothers; Mage = 39.20) and showed that the prevalence of parental burnout varies dramatically across countries. Analyses of cultural values revealed that individualistic cultures, in particular, displayed a noticeably higher prevalence and mean level of parental burnout. Indeed, individualism plays a larger role in parental burnout than either economic inequalities across countries, or any other individual and family characteristic examined so far, including the number and age of children and the number of hours spent with them. These results suggest that cultural values in Western countries may put parents under heightened levels of stress.Supplementary Information: The online version contains supplementary material available at 10.1007/s42761-020-00028-4.
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| 5. |
- Roskam, Isabelle, et al.
(författare)
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Three reasons why parental burnout is more prevalent in individualistic countries : a mediation study in 36 countries
- 2024
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Ingår i: Social Psychiatry and Psychiatric Epidemiology. - : Springer Nature. - 0933-7954 .- 1433-9285. ; 59, s. 681-694
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Tidskriftsartikel (refereegranskat)abstract
- PurposeThe prevalence of parental burnout, a condition that has severe consequences for both parents and children, varies dramatically across countries and is highest in Western countries characterized by high individualism.MethodIn this study, we examined the mediators of the relationship between individualism measured at the country level and parental burnout measured at the individual level in 36 countries (16,059 parents).ResultsThe results revealed three mediating mechanisms, that is, self-discrepancies between socially prescribed and actual parental selves, high agency and self-directed socialization goals, and low parental task sharing, by which individualism leads to an increased risk of burnout among parents.ConclusionThe results confrm that the three mediators under consideration are all involved, and that mediation was higher for self-discrepancies between socially prescribed and actual parental selves, then parental task sharing, and lastly selfdi-rected socialization goals. The results provide some important indications of how to prevent parental burnout at the societal level in Western countries.
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| 6. |
- Gardner, Frances, et al.
(författare)
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Equity effects of parenting interventions for child conduct problems: a pan-European individual participant data meta-analysis.
- 2019
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Ingår i: The Lancet Psychiatry. - 2215-0374. ; 6:6, s. 518-527
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Tidskriftsartikel (refereegranskat)abstract
- Childhood conduct problems are a costly public health problem and are five times more common in socially disadvantaged groups than they are in advantaged groups. Untreated, conduct problems have a poor prognosis, with increasing gaps between socioeconomic groups, and high rates of subsequent criminality. Incredible Years is a high quality parenting programme for reducing conduct problems and is widely disseminated in Europe. Many trials have shown Incredible Years to be effective but the potential effects of parenting interventions on social inequality are unknown. Some behavioural interventions (eg, smoking cessation programmes), although beneficial overall, can widen inequality gaps. Because single trials and aggregate-level meta-analyses are ill equipped for examining differential intervention (moderator) effects, we pooled individual-level trial data to assess the effects of Incredible Years on social equity.We did a systematic review and individual participant data meta-analysis by searching CINAHL, Embase, Global Health, Medline, and PsycINFO, for studies published from inception to March 15, 2019. We also searched the Incredible Years website library and consulted with experts, including the European Incredible Years mentors' network. We included data from all completed randomised trials of the Incredible Years parenting intervention in Europe that included children aged 1-12 years, including unpublished trials, without restriction on publication year or outcome measures. We included prevention (selective or universal) and treatment or indicated prevention trials (for children diagnosed or above the clinical cutoff for conduct problems). We excluded trials or conditions within trials that were not randomised, included additional non-parenting material (eg, child-focused interventions), or were abbreviated, non-standard versions of the usual Incredible Years intervention of 12-14 weekly sessions. We requested individual participant data from the study authors. The primary outcome was child conduct problems, assessed using the Eyberg Child Behavior Inventory Intensity (ECBI-I) scale. Moderators were analysed using multilevel modelling with multiple imputation.Of 15 European trials of Incredible Years parenting programmes (n=1696 children), individual participant data were unavailable for one trial and one trial did not assess the primary outcome. Children were aged 2-10 years (median 5·1), 492 (30%) of 1651 children were from an ethnic minority and 931 (58%) of 1614 were from low-income families. Families who received the Incredible Years intervention reported an overall reduction in child conduct problems (13·5 points on the ECBI-I scale, 95% CI 10·9-16·1). There were no differential effects by family disadvantage (indicated by poverty, lone parenthood, teenage parenthood, household joblessness, or low education), or ethnic minority status.We found no evidence for differential effects by social disadvantage, suggesting that Incredible Years is unlikely to widen socioeconomic inequalities in conduct problems. Furthermore, the programme might be an important tool for reducing social disparities and improving poor long-term outcomes in disadvantaged families because follow-up studies indicate that benefits persist. Clinicians and commissioners can be reassured that the programme is similarly effective for families from different backgrounds.UK National Institute for Health Research.
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| 7. |
- Tinetti, G., et al.
(författare)
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A chemical survey of exoplanets with ARIEL
- 2018
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Ingår i: Experimental Astronomy. - : Springer Science and Business Media LLC. - 0922-6435 .- 1572-9508. ; 46:1, s. 135-209
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Tidskriftsartikel (refereegranskat)abstract
- Thousands of exoplanets have now been discovered with a huge range of masses, sizes and orbits: from rocky Earth-like planets to large gas giants grazing the surface of their host star. However, the essential nature of these exoplanets remains largely mysterious: there is no known, discernible pattern linking the presence, size, or orbital parameters of a planet to the nature of its parent star. We have little idea whether the chemistry of a planet is linked to its formation environment, or whether the type of host star drives the physics and chemistry of the planet’s birth, and evolution. ARIEL was conceived to observe a large number (~1000) of transiting planets for statistical understanding, including gas giants, Neptunes, super-Earths and Earth-size planets around a range of host star types using transit spectroscopy in the 1.25–7.8 μm spectral range and multiple narrow-band photometry in the optical. ARIEL will focus on warm and hot planets to take advantage of their well-mixed atmospheres which should show minimal condensation and sequestration of high-Z materials compared to their colder Solar System siblings. Said warm and hot atmospheres are expected to be more representative of the planetary bulk composition. Observations of these warm/hot exoplanets, and in particular of their elemental composition (especially C, O, N, S, Si), will allow the understanding of the early stages of planetary and atmospheric formation during the nebular phase and the following few million years. ARIEL will thus provide a representative picture of the chemical nature of the exoplanets and relate this directly to the type and chemical environment of the host star. ARIEL is designed as a dedicated survey mission for combined-light spectroscopy, capable of observing a large and well-defined planet sample within its 4-year mission lifetime. Transit, eclipse and phase-curve spectroscopy methods, whereby the signal from the star and planet are differentiated using knowledge of the planetary ephemerides, allow us to measure atmospheric signals from the planet at levels of 10–100 part per million (ppm) relative to the star and, given the bright nature of targets, also allows more sophisticated techniques, such as eclipse mapping, to give a deeper insight into the nature of the atmosphere. These types of observations require a stable payload and satellite platform with broad, instantaneous wavelength coverage to detect many molecular species, probe the thermal structure, identify clouds and monitor the stellar activity. The wavelength range proposed covers all the expected major atmospheric gases from e.g. H2O, CO2, CH4 NH3, HCN, H2S through to the more exotic metallic compounds, such as TiO, VO, and condensed species. Simulations of ARIEL performance in conducting exoplanet surveys have been performed – using conservative estimates of mission performance and a full model of all significant noise sources in the measurement – using a list of potential ARIEL targets that incorporates the latest available exoplanet statistics. The conclusion at the end of the Phase A study, is that ARIEL – in line with the stated mission objectives – will be able to observe about 1000 exoplanets depending on the details of the adopted survey strategy, thus confirming the feasibility of the main science objectives.
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| 8. |
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| 9. |
- Marques, André R A, et al.
(författare)
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Glucosylated cholesterol in mammalian cells and tissues: formation and degradation by multiple cellular β-glucosidases.
- 2016
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Ingår i: Journal of Lipid Research. - 1539-7262. ; 57, s. 451-463
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Tidskriftsartikel (refereegranskat)abstract
- The membrane lipid glucosylceramide (GlcCer) is continuously formed and degraded. Cells express two GlcCer-degrading β-glucosidases, GBA and GBA2, located in and outside the lysosome, respectively. Here we demonstrate that through transglucosylation both GBA and GBA2 are able to catalyze in vitro the transfer of glucosyl-moieties from GlcCer to cholesterol, and vice versa. Furthermore, the natural occurrence of 1-O-cholesteryl-β-D-glucopyranoside (GlcChol) in mouse tissues and human plasma is demonstrated using LC-MS/MS and 13C6-labelled GlcChol as internal standard. In cells the inhibition of GBA increases GlcChol, whereas inhibition of GBA2 decreases glucosylated sterol. Similarly, in GBA2-deficient mice GlcChol is reduced. Depletion of GlcCer by inhibition of GlcCer synthase decreases GlcChol in cells and likewise in plasma of inhibitor-treated Gaucher disease patients. In tissues of mice with Niemann-Pick type C, a condition characterized by intralysosomal accumulation of cholesterol, marked elevations in GlcChol occur as well. When lysosomal accumulation of cholesterol is induced in cultured cells, GlcChol is formed via lysosomal GBA. This illustrates that reversible transglucosylation reactions are highly dependent on local availability of suitable acceptors. In conclusion, mammalian tissues contain GlcChol formed by transglucosylation through β-glucosidases using GlcCer as donor. Our findings reveal a novel metabolic function for GlcCer.
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| 10. |
- Matias, Marisa, et al.
(författare)
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Profiles of Parental Burnout Around the Globe : Similarities and Differences Across 36 Countries
- 2023
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Ingår i: Cross-cultural research. - 1069-3971 .- 1552-3578. ; 57:5, s. 499-538
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Tidskriftsartikel (refereegranskat)abstract
- Parental burnout (PB) is a pervasive phenomenon. Parenting is embedded in cultural values, and previous research has shown the role of individualism in PB. In this paper, we reanalyze previously collected data to identify profiles based on the four dimensions of PB, and explore whether these profiles vary across countries’ levels of collectivistic-individualistic (COL-IND) values. Our sample comprised 16,885 individuals from 36 countries (73% women; 27% men), and we used a latent profile approach to uncover PB profiles. The findings showed five profiles: Fulfilled, Not in PB, Low risk of PB, High risk of PB and Burned out. The profiles pointed to climbing levels of PB in the total sample and in each of the three country groups (High COL/Low IND, Medium COL-IND, Low COL/High IND). Exploratory analyses revealed that distinct dimensions of PB had the most prominent roles in the climbing pattern, depending on the countries’ levels of COL/IND. In particular, we found contrast to be a hallmark dimension and an indicator of severe burnout for individualistic countries. Contrary to our predictions, emotional distance and saturation did not allow a clear differentiation across collectivistic countries. Our findings support several research avenues regarding PB measurement and intervention.
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| 11. |
- 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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| 12. |
- Blennow Nordström, Erik, et al.
(författare)
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Prospective evaluation of the relationship between cognition and recovery outcomes after cardiac arrest
- 2024
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Ingår i: Resuscitation. - 0300-9572. ; 202
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Tidskriftsartikel (refereegranskat)abstract
- Purpose: Cognitive function is often impaired for cardiac arrest (CA) survivors due to hypoxic-ischemic brain injury. Whether cognitive impairment at hospital discharge is associated with recovery defined as functional status and fatigue measured at 1-month post-discharge is not known.Methods: Consecutive CA patients admitted at an academic center (May 14, 2021–June 23, 2023) were assessed for cognitive impairment (modified Telephone Interview for Cognitive Status, TICS-m < 33) and depressive symptoms (8-item Patient Health Questionnaire) at hospital discharge. Poor functional status (primary outcome; modified Rankin Scale, mRS > 3) and fatigue severity (patient-reported outcome; Modified Fatigue Impact Scale) were assessed 1-month post-discharge. Hierarchical regressions tested associations of cognitive function with outcomes.Results: Of 112 participants (mean age 54.4 ± 14.8; 38% female; 43% White race, 20% Black race, 29% Hispanic ethnicity) completing discharge TICS-m, 63 (56%) had indicated cognitive impairment, and 68 (61%) had poor 1-month functional outcome. Worse discharge cognitive function was independently associated with a higher risk of poor 1-month functional outcome (OR = 0.88, 95% CI [0.79, 0.98], p = 0.02) after adjusting for age, education, sex, race, ethnicity, length of hospital stay, comorbidities, and depressive symptoms. Fatigue severity lacked significant associations with cognitive function, but was associated with depressive symptoms (B = 1.03 [0.00, 2.05], p = 0.04).Conclusion: Cognitive function at discharge after CA was significantly and independently associated with functional outcome 1 month after hospital discharge. Psychological distress contributed to fatigue severity. This highlights the need for screening and addressing cognitive and emotional problems pre-hospital discharge.
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| 13. |
- Claudio, Ana Paula, et al.
(författare)
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Sense of presence inside a feared (virtual) tunnel
- 2015
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Ingår i: PROCEEDINGS OF THE 2015 10TH IBERIAN CONFERENCE ON INFORMATION SYSTEMS AND TECHNOLOGIES (CISTI 2015). - 9781479983308 ; , s. Art. no. 7170433-
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Konferensbidrag (refereegranskat)abstract
- Virtual Reality in Exposure Therapy allows exposing patients to simulations of feared situations, even in cases where actual exposure is not possible or difficult. We have created a Web application that helps therapists performing this type of therapy when dealing with patients that suffer from anxiety of crossing road tunnels. The application contains a set of animations of virtual scenarios recreating a car journey across a tunnel visualized from the point of view of the traveler sitting beside the driver and exhibiting a set of potential anxiety inductors. In this paper we describe the application and report a user study to assess the adequacy of our application as a VRET tool and also to compare the impact of visualizing the animations resorting to two distinct low cost apparatus: a versatile immersive equipment and a big projection.
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| 14. |
- Debnath, Shubhranshu, et al.
(författare)
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Lentiviral Vectors with Cellular Promoters Correct Anemia and Lethal Bone Marrow Failure in a Mouse Model for Diamond-Blackfan Anemia
- 2017
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Ingår i: Molecular Therapy. - : Elsevier BV. - 1525-0016. ; 25:8, s. 1805-1814
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Tidskriftsartikel (refereegranskat)abstract
- Diamond-Blackfan anemia is a congenital erythroid hypoplasia and is associated with physical malformations and a predisposition to cancer. Twenty-five percent of patients with Diamond-Blackfan anemia have mutations in a gene encoding ribosomal protein S19 (RPS19). Through overexpression of RPS19 using a lentiviral vector with the spleen focus-forming virus promoter, we demonstrated that the Diamond-Blackfan anemia phenotype can be successfully treated in Rps19-deficient mice. In our present study, we assessed the efficacy of a clinically relevant promoter, the human elongation factor 1α short promoter, with or without the locus control region of the β-globin gene for treatment of RPS19-deficient Diamond-Blackfan anemia. The findings demonstrate that these vectors rescue the proliferation defect and improve erythroid development of transduced RPS19-deficient bone marrow cells. Remarkably, bone marrow failure and severe anemia in Rps19-deficient mice was cured with enforced expression of RPS19 driven by the elongation factor 1α short promoter. We also demonstrate that RPS19-deficient bone marrow cells can be transduced and these cells have the capacity to repopulate bone marrow in long-term reconstituted mice. Our results collectively demonstrate the feasibility to cure RPS19-deficient Diamond-Blackfan anemia using lentiviral vectors with cellular promoters that possess a reduced risk of insertional mutagenesis. Diamond-Blackfan anemia is a congenital erythroid hypoplasia. Twenty-five percent of patients have mutations in a gene encoding ribosomal protein S19. Using an RPS19-deficient mouse model, Debnath et al. demonstrate the feasibility to cure RPS19-deficient Diamond-Blackfan anemia by means of lentiviral vectors with cellular promoters that possess a reduced risk of insertional mutagenesis.
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| 15. |
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| 16. |
- Esteves, Francisco Gomes, et al.
(författare)
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Psychophysiological responses to a Virtual Reality scenario for the treatment of Social Anxiety
- 2016
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Ingår i: International Journal of Psychophysiology. - : Elsevier BV. - 0167-8760.
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Virtual Reality systems have been proved to be a valuable tool in the exposure treatment of different anxiety disorders. Virtual Spectators is an application created to be used by therapists in the treatment of social anxiety. The application allows the therapist to manipulate the difficulty of the task during the therapy session. The aim of the present study was to test the emotional impact of the application in non-clinical participants with different levels of social anxiety, by measuring Heart-Rate, Skin Conductance Responses and the Startle Reflex. Participants had to read two different texts (one easier and another more difficult) in front of a panel with three animated virtual judges, while their physiological responses were monitored continuously. From an initial pool of 95 participants, 32 (10 males) were selected to participate in the experiment according to their anxiety level (high or low). The results showed a general increase in heart-rate and skin conductance levels while they were reading the first text. A general differentiation between the groups was also observed in the heart-rate data, with participants in the high-anxiety group showing higher rates than in low-anxiety participants. Interestingly, the participants rated the exposure situation as more realistic while they were reading the more difficult text. In general, it can be concluded that the application Virtual Spectators seems to be a useful instrument to induce anxiety responses in exposure situations in the treatment of social anxiety.
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| 17. |
- Gaspar-Cunha, Antonio, et al.
(författare)
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e-xtruder.net-Concepção e desenvolvimento de um sistema automático de modelação e optimização de extrusoras
- 2004
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Ingår i: softEXTRUSION 2004 - Modelação da Extrusão de Polímeros. - Portugal : -. - 9729060843 ; , s. 27-46
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Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- Apresenta-se um software para o processo de extrusão monofuso que congrega um tutorial, a monitorização, a modelação e a optimização do processo. O programa foi desenvolvido por um consórcio nacional e pretende constituir-se como uma ferramenta de apoio à actividade industrial de extrusão. A modelação permite prever o comportamento da extrusora ao processar um determinado material em determinadas condições operatórias. O módulo de optimização estima, de forma automática, as condições operatórias e/ou a geometria do sistema mais adequadas a uma aplicação específica. O tutorial, de natureza interactiva, pode ser utilizado na formação dos quadros das empresas. Finalmente, o módulo de monitorização complementa as capacidades do equipamento disponível e proporciona o controlo estatístico do processo.
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| 18. |
- Gáspár, Lászlo, et al.
(författare)
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Recycling reclaimed road material in hydraulically bound layers
- 2015
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Ingår i: Proceedings of the Institution of Civil Engineers. - : ICE Publishing. - 0965-092X .- 1751-7710. ; 168:3, s. 276-287
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Tidskriftsartikel (refereegranskat)abstract
- The European Direct-mat project provided a significant contribution to increasing recycling reclaimed road wastes. Part of the project was dedicated to the recycling of various reclaimed road materials in new hydraulically bound layers. This paper summarises the results of the project and the activities of the eight contributing European countries. Several examples from countries outside the project are also provided to give a comprehensive overview. The paper highlights the main trends of relevant practice worldwide (particularly in Europe) and draws conclusions for practitioners.
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| 19. |
- Gaspar, Rogerio, et al.
(författare)
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Towards a European Strategy for Medicines Research (2014-2020) : The EUFEPS Position Paper on Horizon 2020
- 2012
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Ingår i: European Journal of Pharmaceutical Sciences. - : Elsevier BV. - 0928-0987 .- 1879-0720. ; 47:5, s. 979-987
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Tidskriftsartikel (refereegranskat)abstract
- Executive summary: As to the alignment of "Horizon 2020", iris a more integrated approach to European science policy than expressed in the proposals previously drafted, and specifically considers: (i) promoting excellence in Science, (ii) establishing a sound industrial leadership and (iii) expressing an ambition to address current and future societal challenges. In this respect, the quest for a knowledge-based economy in Europe should result in proposals for industrial and employment policies that will consolidate the major European advantages in the biomedical, healthcare and pharmaceutical sectors. Horizon 2020 also provides the possibility of adopting a more flexible and simplified management route to drive European research through innovation, research and development. What should be additionally considered? Unmet medical needs, under pressure from demographic changes, await the generation of new medicines and health technologies which will evolve into a driver for a unified European policy. We believe that this should be focused on harnessing pharmaceutical knowledge for clinical use, as part of a response to accommodate patient needs and economic growth based on a robust, scientific approach. The bolder ambition for European research is to unlock key bottlenecks currently undermining European competitiveness. The historical lack of an appropriate business/innovation environment with reduced access to adequate risk finance instruments has severed the path for economic growth and industrial development. These issues are of critical importance and a solution is urgently needed to foster translation from the university to the healthcare sector through the generation and support of start-ups, spin-offs, university-industry consortia, and other platforms, which support translational research. The ultimate goal is implementation of holistic programmes: the 'bench to bedside' paradigm of medicines and other healthcare products. The European Research Council supports the basic biomedical research programmes of long term importance for development of medicines; however, fundamental research initiatives on medicines development will not be competitive in such an environment. In order to strengthen the long term outlook, we must foster innovative research within the university sector, EUFEPS proposes that a fund for such research be set up within Horizon 2020, which would be open for individual research groups and which would include Public-Public Partnerships (complementing already existing Public-Private Partnerships). How do we look for implementation? There is an established research agenda for medicines research that is globally focused, and which incorporates a cooperative model between universities and industry, facilitating integration of complex technologies. Regulatory Science will play an important role in this integration. This agenda uses tools arising from systems approaches (including discovery with systems biology and also systems pharmacology) and has the potential for providing better knowledge management, as well as technological innovation (including manufacturing). It also addresses the drive towards personalised medicines and can, with support from both public and private sectors, foster translation of knowledge to new technologies and from that, to new medicinal products and complex integrated systems. This is a part of a strategy capable of solving unmet medical needs, which would increase the quality of life of patients suffering from chronic and debilitating diseases. The instruments to allow the development of a research agenda should strengthen existing partnerships such as the IMI-JU model; allow for the creation of European-network infrastructures that can bring together existing competences with adequate European coordination, thus promoting advanced training and continuous professional development for the pharmaceutical sciences. This will be the cornerstone of a knowledge management strategy, providing education and training for healthcare professionals and scientists. A key role for EUFEPS is to help the research community to embrace these new holistic policies applied to the spectrum of pharmaceutical, medical and cognate sciences.
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| 20. |
- Golparian, Daniel, 1984-, et al.
(författare)
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Genomic epidemiology of Neisseria gonorrhoeae elucidating the gonococcal antimicrobial resistance and lineages/sublineages across Brazil, 2015-16
- 2020
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Ingår i: Journal of Antimicrobial Chemotherapy. - : Oxford University Press. - 0305-7453 .- 1460-2091. ; 75:11, s. 3163-3172
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVES: Neisseria gonorrhoeae antimicrobial resistance (AMR) surveillance is imperative internationally, but only eight (22.9%) countries in the WHO Region of the Americas reported complete AMR data to the WHO Global Gonococcal Antimicrobial Surveillance Program (WHO GASP) in 2016. Genomic studies are ideal for enhanced understanding of gonococcal populations, including the spread of AMR strains. To elucidate the circulating gonococcal lineages/sublineages, including their AMR determinants, and the baseline genomic diversity among gonococcal strains in Brazil, we conducted WGS on 548 isolates obtained in 2015-16 across all five macroregions in Brazil.METHODS: A total of 548 gonococcal isolates cultured across Brazil in 2015-16 were genome sequenced. AMR was determined using agar dilution and/or Etest. Genome sequences of isolates from Argentina (n = 158) and the 2016 WHO reference strains (n = 14) were included in the analysis.RESULTS: We found 302, 68 and 214 different NG-MAST, MLST and NG-STAR STs, respectively. The phylogenomic analysis identified one main antimicrobial-susceptible lineage and one AMR lineage, which was divided into two sublineages with different AMR profiles. Determination of NG-STAR networks of clonal complexes was shown as a new and valuable molecular epidemiological analysis. Several novel mosaic mtrD (and mtrR and mtrE) variants associated with azithromycin resistance were identified.CONCLUSIONS: We describe the first genomic baseline data to support the Brazilian GASP. The high prevalence of resistance to ciprofloxacin, tetracycline and benzylpenicillin, and the high number of isolates with mosaic penA and azithromycin resistance mutations, should prompt continued and strengthened AMR surveillance, including WGS, of N. gonorrhoeae in Brazil.
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| 21. |
- Golparian, Daniel, 1984-, et al.
(författare)
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Recent dynamics in Neisseria gonorrhoeae genomic epidemiology in Brazil : antimicrobial resistance and genomic lineages in 2017-20 compared to 2015-16
- 2024
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Ingår i: Journal of Antimicrobial Chemotherapy. - : Oxford University Press. - 0305-7453 .- 1460-2091. ; 79:5, s. 1081-1092
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVES: Regular quality-assured WGS with antimicrobial resistance (AMR) and epidemiological data of patients is imperative to elucidate the shifting gonorrhoea epidemiology, nationally and internationally. We describe the dynamics of the gonococcal population in 11 cities in Brazil between 2017 and 2020 and elucidate emerging and disappearing gonococcal lineages associated with AMR, compare to Brazilian WGS and AMR data from 2015 to 2016, and explain recent changes in gonococcal AMR and gonorrhoea epidemiology.METHODS: WGS was performed using Illumina NextSeq 550 and genomes of 623 gonococcal isolates were used for downstream analysis. Molecular typing and AMR determinants were obtained and links between genomic lineages and AMR (determined by agar dilution/Etest) examined.RESULTS: Azithromycin resistance (15.6%, 97/623) had substantially increased and was mainly explained by clonal expansions of strains with 23S rRNA C2611T (mostly NG-STAR CC124) and mtr mosaics (mostly NG-STAR CC63, MLST ST9363). Resistance to ceftriaxone and cefixime remained at the same levels as in 2015-16, i.e. at 0% and 0.2% (1/623), respectively. Regarding novel gonorrhoea treatments, no known zoliflodacin-resistance gyrB mutations or gepotidacin-resistance gyrA mutations were found. Genomic lineages and sublineages showed a phylogenomic shift from sublineage A5 to sublineages A1-A4, while isolates within lineage B remained diverse in Brazil.CONCLUSIONS: Azithromycin resistance, mainly caused by 23S rRNA C2611T and mtrD mosaics/semi-mosaics, had substantially increased in Brazil. This mostly low-level azithromycin resistance may threaten the recommended ceftriaxone-azithromycin therapy, but the lack of ceftriaxone resistance is encouraging. Enhanced gonococcal AMR surveillance, including WGS, is imperative in Brazil and other Latin American and Caribbean countries.
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| 23. |
- Leijten, Patty, et al.
(författare)
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Co-occurring change in children's conduct problems and maternal depression: Latent class individual participant data meta-analysis of the Incredible Years parenting program.
- 2019
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Ingår i: Development and psychopathology. - 1469-2198. ; 31:Special Issue 5, s. 1851-1862
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Tidskriftsartikel (refereegranskat)abstract
- Children vary in the extent to which they benefit from parenting programs for conduct problems. How does parental mental health change if children benefit less or more? We assessed whether changes in conduct problems and maternal depressive symptoms co-occur following participation in the Incredible Years parenting program. We integrated individual participant data from 10 randomized trials (N = 1280; children aged 2-10 years) and distinguished latent classes based on families' baseline and post-test conduct problems and maternal depressive symptoms, using repeated measures latent class analysis (RMLCA) and latent transition analysis (LTA). Classes differed mainly in severity of conduct problems and depression (RMLCA; 4 classes). Conduct problems reduced in all classes. Depressive symptoms did not change in most classes, except in a class of families where conduct problems and depression were particularly severe. Incredible Years led to a greater likelihood of families with particularly severe conduct problems and depression moving to a class with mild problems (LTA; 3 classes). Our findings suggest that for the majority of families, children's conduct problems reduce, but maternal depressive symptoms do not, suggesting relative independence, with the exception of families with severe depression and severe conduct problems where changes for the better do co-occur.
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| 24. |
- Machado, Hanalydia de Melo, et al.
(författare)
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National surveillance of Neisseria gonorrhoeae antimicrobial susceptibility and epidemiological data of gonorrhoea patients across Brazil, 2018-20
- 2022
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Ingår i: JAC - Antimicrobial Resistance. - : Oxford University Press. - 2632-1823. ; 4:4
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: To (i) describe the nationwide antimicrobial susceptibility of Neisseria gonorrhoeae (NG) isolates cultured across Brazil in 2018-20 and compare it with NG antimicrobial resistance data from 2015-16, and (ii) present epidemiological data of the corresponding gonorrhoea patients in 2018-20.Methods: Twelve representative sentinel sites cultured NG isolates from men with urethral discharge. Susceptibility to eight antimicrobials was examined using agar dilution method, according to WHO standards. The consenting participants were invited to provide epidemiological data.Results: In total, 633 NG isolates (one isolate per participant) were analysed, and 449 (70.9%) questionnaires were answered. Heterosexual (68.2%) and homosexual (23.1%) sexual orientations were common, and most prevalent types of unprotected sexual intercourse were vaginal insertive (69.9%), oral giving (56.6%) and anal insertive (47.4%). The levels of in vitro NG resistance to ciprofloxacin, tetracycline, benzylpenicillin, azithromycin, cefixime, gentamicin, spectinomycin and ceftriaxone were 67.3%, 40.0%, 25.7%, 10.6%, 0.3%, 0%, 0% and 0%, respectively. Compliance with the recommended first-line ceftriaxone 500 mg plus azithromycin 1 g therapy was high (90.9%).Conclusions: Compared with 2015-16, ciprofloxacin resistance has remained high and azithromycin and cefixime resistance rates have increased in Brazil. Resistance remained lacking to ceftriaxone, gentamicin and spectinomycin, which all are gonorrhoea treatment options. The increasing azithromycin resistance in Brazil and internationally may threaten the future use of azithromycin in dual regimens for treatment of gonorrhoea. Consequently, continued and enhanced quality-assured surveillance of gonococcal AMR, and ideally also treatment failures and including WGS, is imperative in Brazil and worldwide.
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| 25. |
- Morell Miranda, Pedro, et al.
(författare)
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Ancient genomes reveal 7000 years of interconnected Demographic History between Sheep and Humans in Iberia.
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- As the first domestic livestock species, sheep has had a fundamentalrole in human populations since the Neolithic. Theirdemographic history is, however, poorly understood. We successfullysequenced 13 ancient sheep from 2 sites in NorthernIberia to up to 8.74× and 1 modern Corsican mouflon to describethis demographic history at the Western extreme of theMediterranean. Our results support an initial maritime expansioninto Iberia and that European mouflons descended fromferalized Neolithic sheep. We also describe a secondary expansionof Eastern ancestry in sheep at the same time when humanSteppe ancestry arrived to Iberia, and when we expect woollysheep to expand through Europe. Lastly, we found a third expansionin the Mediterranean area during the Roman period,when some historical sources mentioned fine-wool sheep beingtraded. We see evidence that this expansion had a significanteffect in shaping the modern European sheep gene pool leadingto modern breeds like the popular Merino. These resultsillustrate the dynamic history of Iberian sheep populations, andhow human cultural and demographic changes left their footprintsin the sheep gene pool, marking them as a useful proxyfor describing complex human demographic events.
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