1,340 research outputs found

    Long – Term Interest Rate and Fiscal Policy

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    The financial crisis of 2008, the subsequent fiscal stimulus, and damage to the fiscal

    Tunable entanglement distillation of spatially correlated down-converted photons

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    We report on a new technique for entanglement distillation of the bipartite continuous variable state of spatially correlated photons generated in the spontaneous parametric down-conversion process (SPDC), where tunable non-Gaussian operations are implemented and the post-processed entanglement is certified in real-time using a single-photon sensitive electron multiplying CCD (EMCCD) camera. The local operations are performed using non-Gaussian filters modulated into a programmable spatial light modulator and, by using the EMCCD camera for actively recording the probability distributions of the twin-photons, one has fine control of the Schmidt number of the distilled state. We show that even simple non-Gaussian filters can be finely tuned to a ~67% net gain of the initial entanglement generated in the SPDC process.Comment: 12 pages, 6 figure

    The Revised Mental Health Inventory-5 (MHI-5) as an ultra-brief screening measure of bidimensional mental health in children and adolescents

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    The Mental Health Inventory-5 (MHI-5) is a brief, valid, and reliable international instrument for assessing mental health in adults. The aim of the present study is to examine the psychometric properties of the MHI-5 in children and adolescents. A sample of 595 students (10-15 years old) completed the MHI-5 Spanish version adapted for this study, as well as another measure of anxiety and depression symptoms, and a clinical interview as a gold standard. The overall coefficient obtained indicate good internal consistency. A unique factor solution explaining a 53.70% and a two-factor structure explaining 69.20% of the total variance were obtained. The correlations with total and subscale scores of anxiety and depression were significant. A ROC analysis showed good properties as a screening test to predict anxiety and depressive diagnoses in children and adolescents. The Revised MHI-5 presents two essential changes: a simplified 4-point response format and a new factor solution including distress and well-being. These outcomes show that the Revised MHI-5 is a brief, valid, and reliable measure to bidimensionally assess mental health and screening emotional disorders in children and adolescents. Copyright © 2019 Elsevier B.V. All rights reserved. KEYWORDS: Anxiety; Assessment; Depression; Detection; Distress; Factorial structure; MHI-5; Psychometrics; Spanish; Validation; Well-bein

    Validez de la prueba de histerectomĂ­a vaginal en pacientes con indicaciĂłn de vĂ­a abdominal mandatoria

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    Indexación: ScieloObjetivo: Evaluar la histerectomía vaginal en la resolución de patología uterina benigna, en casos que habitualmente se resuelven por histerectomía abdominal. Método: Estudio prospectivo en 68 pacientes sometidas a histerectomía vaginal en el Servicio de Ginecología del Hospital Claudio Vicuña, de San Antonio, entre junio de 2003 a junio de 2009. Son pacientes sin partos vaginales, algunas nuligestas, la mayoría con cicatrices de cesárea o historia de cirugía pélvica previa. Se separan en dos grupos, uno de dificultad moderada (DM) (útero móvil, vagina >2 dedos de diámetro, fondos de saco bien conformados) y otro de dificultad severa (DS) (útero fjo, vagina 2 fingers diameter, well conserved cul de sac, and severe difficulty (SD): composed by patients with none uterine motility, vagina <2 fingers diameter or fat cul de sac. Results: We did not observed statistically significant differences in age, number of prior cesarean sections or pelvic surgeries, estimated uterine size, bladder injury, nor abdominal conversion, but there was significant differences in operative time and need of morcelation, being greater in SD patients. It is important to notice the absent of major and minor complications in 93% of the patients. Conclusion: Our results are meant to demystify the objections for vaginal route, including the patients with extreme difficulty.http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-75262010000500008&nrm=is

    A customisable pipeline for continuously harvesting socially-minded Twitter users

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    On social media platforms and Twitter in particular, specific classes of users such as influencers have been given satisfactory operational definitions in terms of network and content metrics. Others, for instance online activists, are not less important but their characterisation still requires experimenting. We make the hypothesis that such interesting users can be found within temporally and spatially localised contexts, i.e., small but topical fragments of the network containing interactions about social events or campaigns with a significant footprint on Twitter. To explore this hypothesis, we have designed a continuous user profile discovery pipeline that produces an ever-growing dataset of user profiles by harvesting and analysing contexts from the Twitter stream. The profiles dataset includes key network and content-based users metrics, enabling experimentation with user-defined score functions that characterise specific classes of online users. The paper describes the design and implementation of the pipeline and its empirical evaluation on a case study consisting of healthcare-related campaigns in the UK, showing how it supports the operational definitions of online activism, by comparing three experimental ranking functions. The code is publicly available.Comment: Procs. ICWE 2019, June 2019, Kore
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