780 research outputs found

    Can the evolution of music be analyzed in a quantitative manner?

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    We propose a methodology to study music development by applying multivariate statistics on composers characteristics. Seven representative composers were considered in terms of eight main musical features. Grades were assigned to each characteristic and their correlations were analyzed. A bootstrap method was applied to simulate hundreds of artificial composers influenced by the seven representatives chosen. Afterwards we quantify non-numeric relations like dialectics, opposition and innovation. Composers differences on style and technique were represented as geometrical distances in the feature space, making it possible to quantify, for example, how much Bach and Stockhausen differ from other composers or how much Beethoven influenced Brahms. In addition, we compared the results with a prior investigation on philosophy. Opposition, strong on philosophy, was not remarkable on music. Supporting an observation already considered by music theorists, strong influences were identified between composers by the quantification of dialectics, implying inheritance and suggesting a stronger master-disciple evolution when compared to the philosophy analysis.Comment: 8 pages, 6 figures, added references for sections 1 and 4.C, better mathematical description on section 2. New values and interpretation, now considering a bootstrap metho

    Reversed lateral circulation in a sharp estuarine bend with weak stratification

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    Author Posting. © American Meteorological Society, 2019. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Physical Oceanography 49(6), (2019):1619-1637, doi:10.1175/JPO-D-18-0175.1.Although the hydrodynamics of river meanders are well studied, the influence of curvature on flow in estuaries, with alternating tidal flow and varying water levels and salinity gradients, is less well understood. This paper describes a field study on curvature effects in a narrow salt-marsh creek with sharp bends. The key observations, obtained during times of negligible stratification, are 1) distinct differences between secondary flow during ebb and flood, with helical circulation as in rivers during ebb and a reversed circulation during flood, and 2) maximum (ebb and flood) streamwise velocities near the inside of the bend, unlike typical river bend flow. The streamwise velocity structure is explained by the lack of a distinct point bar and the relatively deep cross section in the estuary, which means that curvature-induced inward momentum redistribution is not overcome by outward redistribution by frictional and topographic effects. Through differential advection of the along-estuary salinity gradient, the laterally sheared streamwise velocity generates lateral salinity differences, with the saltiest water near the inside during flood. The resulting lateral baroclinic pressure gradient force enhances the standard helical circulation during ebb but counteracts it during flood. This first leads to a reversed secondary circulation during flood in the outer part of the cross section, which triggers a positive feedback mechanism by bringing slower-moving water from the outside inward along the surface. This leads to a reversal of the vertical shear in the streamwise flow, and therefore in the centrifugal force, which further enhances the reversed secondary circulation.This project was funded by NSF Grant OCE-1634490. During this work W.M. Kranenburg was supported as USGS Postdoctoral Scholar at Woods Hole Oceanographic Institution. A.M.P. Garcia was supported by the Michael J. Kowalski Fellowship in Ocean Science and Engineering (AMPG), and the Diversity Fellowship of the MIT Office of the Dean of Graduate Education (AMPG). The authors thank Jay Sisson for the technical support and Peter Traykovski for providing the bathymetric data. Also, the suggestions for improvement by Dr. K. Blanckaert and an anonymous reviewer are thankfully acknowledged

    Eye Movement Desensitization and Reprocessing (EMDR) treatment in the medical setting:a systematic review

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    Background: Literature points towards the potential benefits of the application of Eye Movement and Desensitization Processing (EMDR)-therapy for patients in the medical setting, with cancer and pain being among the domains it is applied to. The field of applying EMDR-therapy for patients treated in the medical setting has evolved to such an extent that it may be challenging to get a comprehensive overview. Objective: This systematic literature review aims to evaluate the use and effectiveness of Eye Movement Desensitization and Reprocessing (EMDR) therapy in patients treated in the medical setting. Methods:We performed a literature search following the PRISMA guidelines. Studies were included if the effectiveness of EMDR-therapy was assessed in adult patients treated in a medical setting. Excluded were patients exclusively suffering from a mental health disorder, without somatic comorbidity. A risk of bias analysis was performed. This review was registered on PROSPERO (CRD42022325238). Results: Eighty-seven studies, of which 26 (pilot)-RCTs were included and categorized in 14 medical domains. Additionally, three studies focusing on persistent physical complaints were included. Most evidence exists for its application in the fields of oncology, pain, and neurology. The overall appraisal of these studies showed at least moderate to high risks of bias. EMDR demonstrated effectiveness in reducing symptoms in 85 out of 87 studies. Notably, the occurrence of adverse events was rarely mentioned. Conclusions: Overall, outcomes seem to show beneficial effects of EMDR on reducing psychological and physical symptoms in patients treated in a medical setting. Due to the heterogeneity of reported outcomes, effect sizes could not be pooled. Due to the high risk of bias of the included studies, our results should be interpreted with caution and further controlled high-quality research is needed.</p

    Eye Movement Desensitization and Reprocessing (EMDR) treatment in the medical setting:a systematic review

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    Background: Literature points towards the potential benefits of the application of Eye Movement and Desensitization Processing (EMDR)-therapy for patients in the medical setting, with cancer and pain being among the domains it is applied to. The field of applying EMDR-therapy for patients treated in the medical setting has evolved to such an extent that it may be challenging to get a comprehensive overview. Objective: This systematic literature review aims to evaluate the use and effectiveness of Eye Movement Desensitization and Reprocessing (EMDR) therapy in patients treated in the medical setting. Methods:We performed a literature search following the PRISMA guidelines. Studies were included if the effectiveness of EMDR-therapy was assessed in adult patients treated in a medical setting. Excluded were patients exclusively suffering from a mental health disorder, without somatic comorbidity. A risk of bias analysis was performed. This review was registered on PROSPERO (CRD42022325238). Results: Eighty-seven studies, of which 26 (pilot)-RCTs were included and categorized in 14 medical domains. Additionally, three studies focusing on persistent physical complaints were included. Most evidence exists for its application in the fields of oncology, pain, and neurology. The overall appraisal of these studies showed at least moderate to high risks of bias. EMDR demonstrated effectiveness in reducing symptoms in 85 out of 87 studies. Notably, the occurrence of adverse events was rarely mentioned. Conclusions: Overall, outcomes seem to show beneficial effects of EMDR on reducing psychological and physical symptoms in patients treated in a medical setting. Due to the heterogeneity of reported outcomes, effect sizes could not be pooled. Due to the high risk of bias of the included studies, our results should be interpreted with caution and further controlled high-quality research is needed.</p

    Eye Movement Desensitization and Reprocessing (EMDR) Treatment in the Medical Setting:A Systematic Review

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    BackgroundThis systematic literature review aims to evaluate the use and effectiveness of Eye Movement Desensitization and Reprocessing (EMDR) therapy in adult patients treated in the medical setting.MethodsWe performed a systematic literature search of MEDLINE, Web of Science, PsycINFO, and the Cochrane Central Register of Controlled Trials, following the PRISMA guidelines. Studies were included if the effectiveness of EMDR was assessed in adult patients treated in a medical setting. Excluded were patients exclusively suffering from a mental health disorder, without somatic comorbidity. A risk of bias analysis was performed. This review was specified in advance and registered on PROSPERO (CRD42022325238).Findings89 studies are included and categorized in 14 medical domains: pain, oncology, neurology, obstetrics, otorhinolaryngology, rheumatology, cardiology, gynecology, dentistry, dermatology, pulmonary medicine, internal medicine, nephrology, and intensive care unit. In addition, three studies focusing on persistent physical complaints were included. Most frequently used outcomes were anxiety, depression, PTSD symptoms, and pain. These outcomes were assessed by study-specific and validated outcome measures. EMDR was found to be adequate in reducing symptoms in nearly all studies included (87/89). Only two studies, within the field of gynecology, reported either no beneficial effects or that the beneficial effects did not remain over time. Notably, the occurrence of adverse events was rarely mentioned.InterpretationEMDR seems to have a beneficial effect on improving psychological and physical symptoms, including anxiety, PTSD, and pain, in adults treated in a medical setting. Most evidence exists for its application in the fields of oncology, pain, and neurology. The average treatment duration was relatively short, which further improves applicability in the medical setting

    The effect of mindfulness-based interventions on reducing stress in future health professionals:A systematic review and meta-analysis of randomized controlled trials

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    Students in health professions often face high levels of stress due to demanding academic schedules, heavy workloads, disrupted work–life balance, and sleep deprivation. Addressing stress during their education can prevent negative consequences for their mental health and the well-being of their future patients. Previous reviews on the effectiveness of mindfulness-based interventions (MBIs) focused on working health professionals or included a wide range of intervention types and durations. This study aims to investigate the effect of 6- to 12-week MBIs with 1- to 2-h weekly sessions on stress in future health professionals. We conducted a systematic review and meta-analysis of randomized controlled trials published in English by searching Embase, Medline, Web of Science, Cochrane Central Register of Controlled Trials, and PsycINFO. We used post-intervention stress levels and standard deviations to assess the ability of MBIs to reduce stress, summarized by the standardized mean difference (SMD). This review is reported according to the PRISMA checklist (2020). We identified 2932 studies, of which 11 were included in the systematic review and 10 had sufficient data for inclusion in the meta-analysis. The overall effect of MBIs on reducing stress was a SMD of 0.60 (95% CI [0.27, 0.94]). Our study provides evidence that MBIs have a moderate reducing effect on stress in students in health professions; however, given the high risk of bias, these findings should be interpreted with caution, and further high-quality studies are needed.</p

    Mens (dood of levend) of dier? Attitudes over en morele implicaties van orgaanverwerving

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    Dit rapport is het verslag van een verkennende studie naar attitudes met betrekking tot orgaandonatie, en de morele implicaties hiervan. Psychologisch en ethisch onderzoek vullen elkaar in dit rapport aan. Er wordt aandacht geschonken aan twee ontwikkelingen op het gebied van orgaanverwerving: de toename van orgaandonaties bij leven, met name bij donatie van nieren en de verminderde interesse in de ontwikkeling van xenotransplantatie. Het psychologische deel van het rapport valt uiteen in literatuurstudie en eigen empirisch onderzoek. In dit deel wordt zowel de attitude van patiënten als de psychosociale belasting beschreven voor xenotransplantatie en voor nierdonatie bij leven. Patiënten zien nierdonatie bij leven in het algemeen als een wenselijk alternatief voor de wachtlijstsituatie, terwijl men in dit opzicht een stuk terughoudender is ten aanzien van xenotransplantatie. Om te bepalen welke rol van overheid, zorgverleners en onderzoekers gepast is, is het van belang te begrijpen hoe persoonlijke overtuigingen worden gevormd en kunnen veranderen. In het ethische, tweede deel van het rapport wordt dan ook meer aandacht besteed aan de verschillende motivaties voor orgaandonatie. Bij postmortale donatie worden vooral waarden als vrijwilligheid, anonimiteit en altruïsme genoemd. Bij familiedonatie doen begrippen als vanzelfsprekende solidariteit, morele plicht en lotsverbondenheid hun intrede, maar ook begrippen als eigenbelang, afhankelijkheid en wederkerigheid. Onderzocht wordt hoe de verschillende donatievormen zich tot elkaar verhouden, teneinde te bepalen op welke motivaties voor orgaandonatie we als maatschappij een beroep willen doen. Op dit punt wordt expliciet ingegaan op de rol van de overheid. Tevens is er een meer losstaand hoofdstuk gewijd aan commerciële orgaandonatie
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