803 research outputs found

    Sensibilidad de una tarea de tiempo de reacción al procesamiento automático de estímulos neutros enmascarados

    Get PDF
    [Resumen] El objetivo de este experimento era estudiar si los estímulos neutros reciben procesamiento automático cuando son presentados eficazmente enmascarados en un paradigma de priming. Los primes consistían en las letras "o", "e", o "u". Las mismas letras "o" y "e" fueron utilizadas como target, dando lugar a tres condiciones de enmascaramiento, cada una de ellas con dos combinaciones prime/target (congruente: e/e y %; incongruente: o/e y e/o; neutra: u/e y u/o). Además, el target fue considerado como un estímulo imperativo para una tarea de tiempo de reacción (TR). Treinta y seis sujetos fueron expuestos a 20 ensayos de cada condición de enmascaramiento con una asincronía del estímulos de 23 milisegundos. Los resultados demuestran que la presentación eficazmente enmascarada de un estímulo neutro produce facilitación o interferencia con la tarea de TR, dependiendo de si el target es un estímulo congruente o incongruente con el prime.[Abstract] Sensitivity of a reaction time task to automatic processing of neutral masked stimu1i The purpose of this experiment was to study if the neutral stimuli receive automatic processing when presented effective1y masked in a priming paradigm. The primes consisted of the "o", "e", or "u" 1etters. The same "o" and "e" 1etters were used as target, giving three masking conditions, each with two prime/target combinations (congruent -e/e and 0/0-; incongruent -o/e and e/o-; neutral -u/e and u/o-). Furthennore, the target was considered an imperative stimu1us for a reaction time (RT) task. Thirty-six subjects were exposed to 20 tria1s of each masking conditions with a stimu1us- onset asynchrony of 23 milliseconds. The results demonstrate that an effective masking presentation of a neutral stimulus produces either facilitation or interference with the RT task, depending on whether the target is a congruent or an incongruent stimu1us with the prim

    Exercises using a touchscreen tablet application improved functional ability more than an exercise program prescribed on paper in people after surgical carpal tunnel release: a randomised trial

    Get PDF
    Question: In people who have undergone surgical carpal tunnel release, do sensorimotor-based exercises performed on the touchscreen of a tablet device improve outcomes more than a conventional home exercise program prescribed on paper? Design: Randomised, parallel-group trial with concealed allocation, assessor blinding, and intention-to-treat analysis. Participants: Fifty participants within 10 days of surgical carpal tunnel release. Intervention: Each participant was prescribed a 4-week home exercise program. Participants in the experimental group received the ReHand tablet application, which administered and monitored exercises via the touchscreen. The control group was prescribed a home exercise program on paper, as is usual practice in the public hospital system. Outcome measures: The primary outcome was functional ability of the hand, reported using the shortened form of the Disabilities of the Arm, Shoulder and Hand (QuickDASH) questionnaire. Secondary outcomes were grip strength, pain intensity measured on a 10-cm visual analogue scale, and dexterity measured with the Nine-Hole Peg Test. Outcomes were measured by a blinded assessor at baseline and at the end of the 4-week intervention period. Results: At Week 4, functional ability improved significantly more in the experimental group than the control group (MD –21, 95% CI –33 to –9) on the QuickDASH score (0 to 100). Although the mean estimates of effect on the secondary outcome also all favoured the experimental group, none reached statistical significance: grip strength (MD 5.6 kg, 95% CI –0.5 to 11.7), pain (MD –1.4 cm, 95% CI –2.9 to 0.1), and dexterity (MD –1.3 seconds, 95% CI –3.7 to 1.1). Conclusion: Use of the ReHand tablet application for early rehabilitation after carpal tunnel release is more effective in the recovery of functional ability than a conventional home exercise program. It remains unclear whether there are any benefits in grip strength, pain or dexterity. Trial registration: ACTRN12618001887268

    Weakly-nonlinear analysis of the Rayleigh–Taylor instability in a vertically vibrated, large aspect ratio container

    Get PDF
    We consider a horizontal liquid layer supported by air in a wide (as compared to depth) container, which is vertically vibrated with an appropriately large frequency, intending to counterbalance the Rayleigh-Taylor instability of the fíat, rigid-body vibrating state. We apply a long-wave, weakly-nonlinear analysis that yields a generalized Cahn-Hilliard equation for the evolution of the fluid interface, with appropriate boundary conditions obtained by a boundary layer analysis. This equation shows that the stabilizing effect of vibration is like that of surface tensión, and is used to analyze the linear stability of the fíat state, and the local bifurcation at the instability threshold

    Influence of elevation and slope exposure on must volatiles of Mencía cultivar from Ribeira Sacra (NW Spain)

    Get PDF
    Resumen del póster presentado al Congreso que bajo el lema "Science and horticulture for people" se celebró en Lisboa del 22 al 27 de Agosto de 2010.Peer reviewe

    The Influence of Patient Experience with Healthcare on the Health-Related Quality of Life of People Living with HIV: An Observational Cross-Sectional Survey

    Get PDF
    [Abstract] Introduction Patient experience is central to the quality of healthcare delivery, showing positive associations with several outcome measures. The main objectives of this study are to analyze the influence of patient experience on the health-related quality of life in people living with HIV and the role played by treatment complexity and clinical care. Methods We conducted a cross-sectional survey with 467 patients with HIV. We used the Instrument for Evaluation of the Experience of Chronic Patients and the Health-related Quality of Life Questionnaire (EQ-5D-5L). We analyzed a predictive model through the partial least squares (PLS) method. Results The patient self-management scores showed the highest positive relationship with the patient’s health-related quality of life (β = 0.24, β = 0.32, p  50 years old (p < 0.05). Conclusions Patient experience mainly influenced the health-related quality of life of older people living with HIV. The treatment and clinical care complexity played an important role in degrading the patients' experience and their quality of life. More integrated care would benefit the health-related quality of life of people living with HIV

    PHF2 regulates homology-directed DNA repair by controlling the resection of DNA double strand breaks

    Get PDF
    Post-translational histone modifications and chromatin remodelling play a critical role controlling the integrity of the genome. Here, we identify histone lysine demethylase PHF2 as a novel regulator of the DNA damage response by regulating DNA damage-induced focus formation of 53BP1 and BRCA1, critical factors in the pathway choice for DNA double strand break repair. PHF2 knockdown leads to impaired BRCA1 focus formation and delays the resolution of 53BP1 foci. Moreover, irradiation-induced RPA phosphorylation and focus formation, as well as localization of CtIP, required for DNA end resection, to sites of DNA lesions are affected by depletion of PHF2. These results are indicative of a defective resection of double strand breaks and thereby an impaired homologous recombination upon PHF2 depletion. In accordance with these data, Rad51 focus formation and homology-directed double strand break repair is inhibited in cells depleted for PHF2. Importantly, we demonstrate that PHF2 knockdown decreases CtIP and BRCA1 protein and mRNA levels, an effect that is dependent on the demethylase activity of PHF2. Furthermore, PHF2-depleted cells display genome instability and are mildly sensitive to the inhibition of PARP. Together these results demonstrate that PHF2 promotes DNA repair by homologous recombination by controlling CtIP-dependent resection of double strand breaks.España Ministerio de Ciencia e Innovacion SAF2016-80626-REspaña, Fundación Canaria Instituto de Investigación Sanitaria de Canarias (FIISC) [PIFUN16/18

    Healthcare experience and their relationship with demographic, disease and healthcare-related variables: a cross-sectional survey of patients with chronic diseases using the IEXPAC scale.

    Get PDF
    [Abstract] BACKGROUND: Patient experience is acknowledged as a principal aspect of quality healthcare delivery, and it has implications with regard to outcomes. OBJECTIVES: Our objective was to evaluate the healthcare experience of patients with chronic diseases to identify patient-perceived healthcare gaps and to assess the influence of demographic and healthcare-related variables on patient experiences. METHODS: A cross-sectional survey was delivered to adult patients with chronic diseases: diabetes mellitus (DM), human immunodeficiency virus (HIV) infection, inflammatory bowel disease (IBD) or rheumatic diseases. Patient experiences were assessed with the Instrument for Evaluation of the Experience of Chronic Patients (IEXPAC) questionnaire, with possible scores ranging from 0 (worst) to 10 (best experience). RESULTS: Of the 2474 patients handed the survey, 1618 returned it (response rate 65.4%). Patients identified gaps in healthcare related mainly to access to reliable information and services, interaction with other patients and continuity of healthcare after hospital discharge. The mean ± standard deviation (SD) IEXPAC score was 6.0 ± 1.9 and was higher for patients with HIV (6.6 ± 1.7) than for those with rheumatic disease (5.5 ± 2.0), IBD (5.9 ± 2.0) or DM (5.9 ± 1.9) (p < 0.001). In multivariate models, better overall IEXPAC experience was associated with follow-up by the same physician, follow-up by a nurse, receiving healthcare support from others and treatment with subcutaneous or intravenous drugs. The multivariate model that confirmed patients with HIV or DM had better experience than did those with rheumatic diseases. CONCLUSIONS: Through IEXPAC, patients identified aspects for healthcare quality improvements and circumstances associated with better experience, which may permit greater redirection of healthcare toward patient-centered goals while facilitating improvements in social care and long-term healthcare quality

    Different associations of intentional and non-intentional non-adherence behaviors with patient experience with healthcare and patient beliefs in medications: a survey of patients with chronic conditions

    Get PDF
    [Abstract] Purpose: To investigate relationships between intentional and non-intentional non-adherence behaviors and patient experience with healthcare and beliefs in medications. Patients and methods: This is a post hoc analysis of a cross-sectional anonymous survey distributed between May and September 2017 to patients with rheumatic disease, inflammatory bowel disease, HIV infection or diabetes mellitus from outpatient and primary care clinics in Spain. Patients answered five questions about non-adherence behaviors and completed questionnaires on their experience with healthcare (IEXPAC: Instrument to Evaluate the EXperience of PAtients with Chronic diseases) and beliefs about medicines (BMQ: Beliefs About Medicines Questionnaire). Results: Among 1530 respondents, 53% showed ≥1 non-adherence behavior; 35% had ≥1 non-intentional non-adherence behavior, and 33% had ≥1 intentional non-adherence behavior. Patients with HIV infection had the lowest frequency of intentional non-adherence behaviors. Non-intentional non-adherence was associated with patient beliefs (inversely with BMQ overall score) and patient experiences (inversely with IEXPAC Factor 3 sub-score, self-management). Intentional non-adherence was strongly associated with beliefs scores (directly with BMQ concerns and inversely with BMQ necessity sub-score) and inversely associated with HIV infection. Conclusion: The different associations of intentional and non-intentional non-adherence behaviors found in this study help to understand how patient experiences and beliefs influence medical non-adherence, and in the development of strategies for reducing non-adherence
    corecore