45 research outputs found

    Propuesta de un modelo de compra y venta de servicios entre dos empresas vinculadas que cumpla con el decreto 37898-H de precios de transferencia

    Get PDF
    Proyecto de graduación (Licenciatura en Finanzas). Instituto Tecnológico de Costa Rica, Escuela de Administración de Empresas, 2019.The following document is based in the study of transfer prices application of transactions between companies from the same group, due to the necessity of knowing how to handle transactions between them and which is the correct process to bill for those services. Based on the request it is proposed a purchase - sale transaction model that complies with the “Decreto 37898-H” of transfer prices, which the main purpose of it is to ensure the arm’s-length principle, to avoid competitive disadvantage and tax avoidance. A qualitative research of descriptive - exploratory type was developed since the main objective is to get more information about price transfer since it’s little known in Costa Rica, instead of generalizing the study results. Once the data provided was compiled and the current historical data analyzed, the proposal was done, which it has the model to apply transfer prices focused on the case of study and a process to serve as a guide to apply the “Decreto 37898-H”. In this way it was concluded that the company had a variation in its current cost distribution by applying the “Decreto 37898-H” and that multiple sectors, both private and government, in Costa Rica requires more knowledge in order to apply it.Instituto Tecnológico de Costa Rica. Escuela de Administración de Empresas

    Effects of a Short-Term Resistance-Training Program on Heart Rate Variability in Children With Cystic Fibrosis—A Randomized Controlled Trial

    Get PDF
    [EN] Background: Cystic fibrosis (CF) affects the autonomic nervous system (ANS) and exercise in healthy children modulates the interaction between sympathetic and parasympathetic activity. This study aimed to evaluate the effects of a short-term resistance exercise program on heart rate variability (HRV) in children and adolescents with CF. Methods: A randomized controlled trial was carried out in children diagnosed with CF aged 6–18 years. Individuals were divided into two groups: control (CON) and resistance-training (EX). Individuals in the EX group completed an individualized guided resistance program (5-RM—60–80%) for 8 weeks (3 sessions of 60 min/week). Upper and lower limbs exercises (seated bench press, seated lateral row, and leg press) were used. HRV was measured using a Suunto watch with subjects in lying position. Results: Nineteen subjects (13 boys) were included (CON = 11; and EX = 8). Mean age was 12.2 ± 3.3, FEV1 (forced expiratory volume in the first second) z-score was 1.72 ± 1.54 and peak oxygen consumption (VO2peak) 42.7 ± 7.4 mL.Kg–1.min–1. Exercise induced significant changes in the frequency-domain variables, including a decrease in LF power (p = 0.001, d = 0.98) and LF/HF ratio (p = 0.020, d = 0.92), and an increase in HF power (p = 0.001, d = −0.97), compared to the CON group. No significant changes were found for time-domain variables, although increases with a moderate effect size were seen for SDNN (p = 0.152, d = −0.41) and RMSSD (p = 0.059, d = −0.49) compared to the CON group.SICatedra Fundación Asisa-UE y Universidad Europe

    Quantitative analysis of dysautonomia in patients with autonomic dysreflexia

    Get PDF
    Autonomic dysreflexia (AD) is a life-threatening condition for individuals with cervical or high-thoracic spinal cord injury (SCI). The profile of autonomic dysfunction in AD using validated clinical autonomic tests has not been described so far, although it could be useful to identify SCI patients at greater risk of developing AD non-invasively. With this objective, 37 SCI patients (27% female) were recruited, and hemodynamic and cardiac parameters were continuously monitored to determine the presence of AD, defined as an increase of systolic blood pressure of 20 mmHg or higher after bladder filling with saline. Then, standard autonomic function testing was performed, including Deep Breathing, Valsalva Manoeuvre and Tilt Table Test. Finally, baroreflex sensitivity (BRS), and spectral analysis of heart rate and blood pressure variability were measured at rest. Catecholamines and vasopressin levels were also measured at supine and upright positions. The severity of SCI was assessed through clinical and radiological examinations. AD was observed in 73.3% of SCI patients, being 63.6% of them asymptomatic during the dysreflexive episode. AD patients displayed a drop in sympathetic outflow, as determined by decreased noradrenalin plasma levels, reduced sympathovagal balance and increased BRS. In line with decreased sympathetic activity, the incidence of neurogenic orthostatic hypotension was higher in AD patients. Our results provide novel evidence regarding the autonomic dysfunction in SCI patients with AD compared to non-AD patients, posing non-invasively measured autonomic parameters as a powerful clinical tool to predict AD in SCI patients

    Retinal thickness predicts the risk of cognitive decline in Parkinson's disease

    Get PDF
    Objective: To analyze longitudinal changes of retinal thickness and their predictive value as biomarkers of disease progression in idiopathic Parkinson’s disease (iPD). Methods: Patients with Lewy body diseases (LBDs) were enrolled and prospectively evaluated at 3 years, including patients with iPD (n=42), dementia with Lewy bodies (DLB, n=4), E46K-SNCA mutation carriers (n=4) and controls (n=17). All participants underwent Spectralis retinal optical coherence tomography and Montreal Cognitive Assessment (MoCA), and Unified Parkinson’s Disease Rating Scale (UPDRS) score was obtained in patients. Macular ganglion-inner plexiform layer complex (GCIPL) and peripapillary retinal nerve fiber layer (pRNFL) thickness reduction rates were estimated with linear mixed models. Risk ratios were calculated to evaluate the association between baseline GCIPL and pRNFL thickness and the risk of subsequent cognitive and motor worsening, using clinically meaningful cut-offs. Results: GCIPL thickness in the parafoveal region (1- to 3-mm ring) presented the largest reduction rate. The annualized atrophy rate was 0.63 µm in iPD patients and 0.23 µm in controls (p<0.0001). iPD patients with lower parafoveal GCIPL and pRNFL thickness at baseline presented an increased risk of cognitive decline at 3 years (RR 3.49, 95% CI 1.10 – 11.1, p=0.03 and RR 3.28, 95% CI 1.03 – 10.45, p=0.045, respectively). We did not identify significant associations between retinal thickness and motor deterioration. Interpretation: Our results provide evidence of the potential use of OCT-measured parafoveal GCIPL thickness to monitor neurodegeneration and to predict the risk of cognitive worsening over time in iPD

    Heart-brain synchronization breakdown in Parkinson's disease

    Get PDF
    Heart rate variability (HRV) abnormalities are potential early biomarkers in Parkinson's disease (PD) but their relationship with central autonomic network (CAN) activity is not fully understood. We analyzed the synchronization between HRV and brain activity in 31 PD patients and 21 age-matched healthy controls using blood-oxygen-level-dependent (BOLD) signals from resting-state functional brain MRI and HRV metrics from finger plethysmography recorded for 7.40 min. We additionally quantified autonomic symptoms (SCOPA-AUT) and objective autonomic cardiovascular parameters (blood pressure and heart rate) during deep breathing, Valsalva, and head-up tilt, which were used to classify the clinical severity of dysautonomia. We evaluated HRV and BOLD signals synchronization (HRV-BOLD-sync) with Pearson lagged cross-correlations and Fisher's statistics for combining window-length-dependent HRV-BOLD-Sync Maps and assessed their association with clinical dysautonomia. HRV-BOLD-sync was lower significantly in PD than in controls in various brain regions within CAN or in networks involved in autonomic modulation. Moreover, heart-brain synchronization index (HBSI), which quantifies heart-brain synchronization at a single-subject level, showed an inverse exposure-response relationship with dysautonomia severity, finding the lowest HBSI in patients with severe dysautonomia, followed by moderate, mild, and, lastly, controls. Importantly, HBSI was associated in PD, but not in controls, with Valsalva pressure recovery time (sympathetic), deep breathing E/I ratio (cardiovagal), and SCOPA-AUT. Our findings support the existence of heart-brain de-synchronization in PD with an impact on clinically relevant autonomic outcomes.We want to thank all the patients and participants involved in the study. This study was partially co-funded by Michael J. Fox Foundation [RRIA 2014 (Rapid Response Innovation Awards) Program (Grant ID: 10189)], by the Carlos III Health Institute, and the European Union (ERDF/ESF, "A Way to Make Europe"/"Investing in Your Future") through the projects PI14/00679 and PI16/00005, the Juan Rodes grant "JR15/00008" (I.G.), and by the Department of Health of the Basque Government through the project "2016111009" and "2020333033". A.J.M. was supported by a predoctoral grant from the Basque Government (PRE_2019_1_0070). M.I. acknowledges financial support from"La Caixa" Foundation (ID 100010434, fellowship LCF/BQ/EU20/11810065). The Edmond and Lily Safra Center for Brain Sciences and the Basque Government (POS_2019_2_0020) to A.E. J.M.C. is funded by Ikerbasque: The Basque Foundation for Science and from the Ministerial de Economia, Industria y Competitividad (Spain) and FEDER (grant DPI2016-79874-R), and from the Department of Economic and Infrastructure Development of the Basque Country (Elkartek Program, KK-2018/00032, KK-2018/00090, and KK-2021/00009/BCB)

    Brain fog of post-COVID-19 condition and Chronic Fatigue Syndrome, same medical disorder?

    Get PDF
    Background: Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) is characterized by persistent physical and mental fatigue. The post-COVID-19 condition patients refer physical fatigue and cognitive impairment sequelae. Given the similarity between both conditions, could it be the same pathology with a different precipitating factor? Objective: To describe the cognitive impairment, neuropsychiatric symptoms, and general symptomatology in both groups, to find out if it is the same pathology. As well as verify if the affectation of smell is related to cognitive deterioration in patients with post-COVID-19 condition. Methods: The sample included 42 ME/CFS and 73 post-COVID-19 condition patients. Fatigue, sleep quality, anxiety and depressive symptoms, the frequency and severity of different symptoms, olfactory function and a wide range of cognitive domains were evaluated. Results: Both syndromes are characterized by excessive physical fatigue, sleep problems and myalgia. Sustained attention and processing speed were impaired in 83.3% and 52.4% of ME/CFS patients while in post-COVID-19 condition were impaired in 56.2% and 41.4% of patients, respectively. Statistically significant differences were found in sustained attention and visuospatial ability, being the ME/CFS group who presented the worst performance. Physical problems and mood issues were the main variables correlating with cognitive performance in post-COVID-19 patients, while in ME/CFS it was anxiety symptoms and physical fatigue. Conclusions: The symptomatology and cognitive patterns were similar in both groups, with greater impairment in ME/CFS. This disease is characterized by greater physical and neuropsychiatric problems compared to post-COVID-19 condition. Likewise, we also propose the relevance of prolonged hyposmia as a possible marker of cognitive deterioration in patients with post-COVID-19.This study has been funded by Instituto de Salud Carlos III (ISCIII) through the project PI20/01076 and co-funded by the European Union, EITB maratoia (BIOS21/COV/006) and grants for health research projects from the Basque Government (2021111006). Azcue, N. received a pre-doctoral research grant from the basque government (PRE_2021_1_0186)

    Treatment with tocilizumab or corticosteroids for COVID-19 patients with hyperinflammatory state: a multicentre cohort study (SAM-COVID-19)

    Get PDF
    Objectives: The objective of this study was to estimate the association between tocilizumab or corticosteroids and the risk of intubation or death in patients with coronavirus disease 19 (COVID-19) with a hyperinflammatory state according to clinical and laboratory parameters. Methods: A cohort study was performed in 60 Spanish hospitals including 778 patients with COVID-19 and clinical and laboratory data indicative of a hyperinflammatory state. Treatment was mainly with tocilizumab, an intermediate-high dose of corticosteroids (IHDC), a pulse dose of corticosteroids (PDC), combination therapy, or no treatment. Primary outcome was intubation or death; follow-up was 21 days. Propensity score-adjusted estimations using Cox regression (logistic regression if needed) were calculated. Propensity scores were used as confounders, matching variables and for the inverse probability of treatment weights (IPTWs). Results: In all, 88, 117, 78 and 151 patients treated with tocilizumab, IHDC, PDC, and combination therapy, respectively, were compared with 344 untreated patients. The primary endpoint occurred in 10 (11.4%), 27 (23.1%), 12 (15.4%), 40 (25.6%) and 69 (21.1%), respectively. The IPTW-based hazard ratios (odds ratio for combination therapy) for the primary endpoint were 0.32 (95%CI 0.22-0.47; p < 0.001) for tocilizumab, 0.82 (0.71-1.30; p 0.82) for IHDC, 0.61 (0.43-0.86; p 0.006) for PDC, and 1.17 (0.86-1.58; p 0.30) for combination therapy. Other applications of the propensity score provided similar results, but were not significant for PDC. Tocilizumab was also associated with lower hazard of death alone in IPTW analysis (0.07; 0.02-0.17; p < 0.001). Conclusions: Tocilizumab might be useful in COVID-19 patients with a hyperinflammatory state and should be prioritized for randomized trials in this situatio

    Educafarma 10.0

    Get PDF
    Memoria ID-030. Ayudas de la Universidad de Salamanca para la innovación docente, curso 2021-2022

    La observación sistemática aplicada a la evaluación de la gimnasia rítmica

    Get PDF
    Oidui Usabiaga; Julen Castellano y Joseba Etxebeste (editores).[ES] El estudio pretende evaluar la actividad motriz de las gimnastas en el deporte de base con el objetivo de realizar un análisis detallado de las ocho dificultades corporales más utilizadas por las gimnastas y sus implicaciones deportivas. Para ello, hemos diseñado una herramienta de observación configurada a partir de los criterios establecidos por el Código de Puntuación de la Federación Internacional de Gimnasia (en adelante FIG, 2009-2012) que han sido adaptados por las exigencias técnicas que la Real Federación Española de Gimnasia (en adelante RFEG, 2009) ha establecido para las competiciones nacionales de este año 2009. Previo a la realización del registro se han efectuado diferentes análisis en relación con la precisión en la generalización de aspectos claves de la investigación. La observación, codificación y registro se llevó a cabo sobre gimnastas de 9 años de edad. La relación existente entre el grado de exigencia técnica y la edad de las participantes puede ser considerado como muy alto; máxime teniendo en cuenta que estamos circunscritos a la Gimnasia Rítmica de Base.Gobierno Vasco, Departamento de Educación, Universidades e Investigación; Servicio de Extensión cultural del Vicerrectorado del Campus de Álava; Diputación Foral de Álava

    La observación sistemática aplicada a la evaluación de la gimnasia rítmica

    No full text
    Oidui Usabiaga; Julen Castellano y Joseba Etxebeste (editores).[ES] El estudio pretende evaluar la actividad motriz de las gimnastas en el deporte de base con el objetivo de realizar un análisis detallado de las ocho dificultades corporales más utilizadas por las gimnastas y sus implicaciones deportivas. Para ello, hemos diseñado una herramienta de observación configurada a partir de los criterios establecidos por el Código de Puntuación de la Federación Internacional de Gimnasia (en adelante FIG, 2009-2012) que han sido adaptados por las exigencias técnicas que la Real Federación Española de Gimnasia (en adelante RFEG, 2009) ha establecido para las competiciones nacionales de este año 2009. Previo a la realización del registro se han efectuado diferentes análisis en relación con la precisión en la generalización de aspectos claves de la investigación. La observación, codificación y registro se llevó a cabo sobre gimnastas de 9 años de edad. La relación existente entre el grado de exigencia técnica y la edad de las participantes puede ser considerado como muy alto; máxime teniendo en cuenta que estamos circunscritos a la Gimnasia Rítmica de Base.Gobierno Vasco, Departamento de Educación, Universidades e Investigación; Servicio de Extensión cultural del Vicerrectorado del Campus de Álava; Diputación Foral de Álava
    corecore