203,195 research outputs found
The international competitiveness of cava: success of a particular firm or the district ?
No full textFirst of all, the author wonders about the degree of success of the Catalan sparkling wine industry in the recent past. The comparison with the Italian sparkling spumante and also with the case of the most celebrated sparkling wine in the world, champagne, shows a very positive trend of the cava production and exports in the last three decades of the XXth century. Secondly, this paper focuses on the agent or cause responsible of this success. Is it due to a particular firm or should it be attributed to the whole industrial cava cluster around the area of Sant Sadurni dAnoia? More than two thirds of the exports correspond to a particular firm. In this sense, we should attribute the success to it. However, the historical explanation of the development of the industrial cava cluster in the main and well-kwown viticultural Catalan area of Penedes, shows that all producers have benefit from the Marshalian external economies due to this concentration. And the paper shows that the leading export firm would never have succeeded in the international market without the existence of this kind of invisible advantages.skilled labor, wine industry, wine trade, spumante, cava, cluster, champagne, sparkling wine, protectionism
Estudo experimental do desempenho de um novo filtro de veia cava inferior
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2012Filtros de veia cava (FVC) são dispositivos médicos implantáveis utilizados na prevenção do tromboembolismo pulmonar (TEP). Este evento é uma desordem potencialmente fatal que ocorre em consequência do desprendimento e migração de um ou mais coágulos sanguíneos (trombos) formados no sistema venoso quando estes obstruem artérias pulmonares. Os filtros de veia cava inferior são empregados em cirurgias minimamente invasivas, ou seja, o filtro é alojado em um cateter que é conduzido por um vaso sanguíneo até a porção inferior da veia cava. O dispositivo consiste em uma estrutura cônica de hastes metálicas que se fixa na parede da veia através de sua base e tem a função de capturar coágulos sanguíneos e evitar sua chegada aos vasos pulmonares. O estudo apresentado neste trabalho é parte do processo de desenvolvimento de um novo filtro de veia cava criado pela empresa Biokyra Pesquisa e Desenvolvimento, onde foram conduzidos experimentos in vitro dos protótipos desenvolvidos. Os testes permitiram a avaliação de quatro fatores fisiológicos simulados: diâmetro da veia cava, vazão sanguínea e diâmetro e comprimento dos coágulos, através de testes de eficiência de captura e medição da pressão diferencial. A eficiência de captura é definida como a razão entre os coágulos inseridos no sistema circulatório simulado e os coágulos capturados pelo filtro e a pressão diferencial é a medida do aumento da pressão hidrostática referente à captura de coágulos pelos filtros de veia cava. Os resultados mostraram forte influência do comprimento dos trombos na eficiência de captura e considerável variação entre os diferentes filtros testados. As distintas geometrias dos filtros influenciaram os resultados de eficiência o que foi sistematicamente confirmado com testes dos variados parâmetros construtivos dos protótipos. Os experimentos permitiram a comparação entre filtros de veia cava comerciais e qualificaram os protótipos desenvolvidos para as etapas seguintes da validação dos dispositivos.Abstract : Vena cava filters (VCF) are implantable medical devices used in the prevention of the pulmonary thromboembolism (PE). This kind of event is a potentially deadly disorder which occurs in consequence of the dislodgement and migration of one or more blood clots (thrombi) formed in the deep venous system, when the clots obstruct pulmonary arteries. Inferior vena cava filters are employed in minimally invasive intervention, where the filter is housed in a catheter which is conducted through a blood vessel until the inferior portion of the vena cava. The device consists of a conical structure of metal rods fixed on the wall of the vein through its base and serves to capture blood clots preventing them of reaching the pulmonary vessels. The study presented in this paper is part of the product development process of a new vena cava filter designed by Biokyra Research and Development, where experiments were conducted for the in vitro evaluation of the developed prototypes. The test allowed evaluation of four simulated physiological factors: diameter of the vena cava, blood flow and the diameter and length of the clots by testing clot trapping efficacy and differential pressure measurement. The clot trapping efficacy is defined as the ratio of the inserted clots in the circulatory system and the simulated clot captured by the filter and the differential pressure is a measure of the increase in hydrostatic pressure caused by the clot capture in the vena cava filters. The results showed a strong influence of the length of thrombi in the clot trapping efficacy and considerable variation between the tested filters. The different geometries of the filters affected the results that were systematically confirmed with tests of various construction parameters of the prototypes. The experiments allowed comparison between vena cava filters and commercial prototypes and qualified the filters for the next stages validation tests
Audit of abdominal vena cava injuries in an urban truama centre
No full textIncludes bibliographical references.The aim of this thesis is to present the surgical management of injuries to the abdominal vena cava (AVC) and to identify clinical and physiological factors and management strategies that affect outcome
The role of cardiopulmonary bypass in the management of retrohepatic vena cava injury - A case report and review of the literature
No full textInjuries to the retrohepatic vena cava are extremely rare and are associated with an operative mortality of up to 50% even in high volume trauma centres. We present a patient with such an injury who underwent successful repair using cardiopulmonary bypass and deep hypothermic circulatory arrest.
A 23 year old male was transferred to our unit following laparotomy with packing of the abdomen after uncontrolled haemorrhage from the retrohepatic vena cava was experienced. The patient was placed on full cardiopulmonary bypass and cooled to 20 °C before clamping of the supracoeliac aorta and inferior vena cava. This facilitated exposure of the retrohepatic cava and allowed successful primary repair of a 5 cm laceration.
Other techniques to allow repair of these injuries, such as atriocaval shunts and total vascular exclusion of the liver, are associated with a high mortality. We believe the technique described in this case report is an alternative strategy that can be used successfully to manage life threatening from the retrohepatic vena cava
The inferior caval vein draining into the left atrial cavity : a rare case
No full textThe inferior vena cava (IVC) draining into the left atrium (LA) is exceedingly rare in the setting of the usual atrial arrangement (situs solitus). This article describes a patient with this unique anomaly, and its repair.peer-reviewe
Cava (1281 m.). Detall
No full textBoExcursió del 17 al 19 de març de 1974. Itinerari: Pont d'Arsèguel - Arsèguel - Ansovell - Santuari del Boscal (1469 m.) - Cava - Veïnat de Can Pubill - Coll d'Oruga (1594 m.) - El Quer Foradat - Collada de Pallers - Estana - Santuari de Bastanist (1250 m.) - Montellà - Martinet - Puigcerd
Scorepochs: A Computer-Aided Scoring Tool for Resting-State M/EEG Epochs
No full textM/EEG resting-state analysis often requires the definition of the epoch length and the criteria in order to select which epochs to include in the subsequent steps. However, the effects of epoch selection remain scarcely investigated and the procedure used to (visually) inspect, label, and remove bad epochs is often not documented, thereby hindering the reproducibility of the reported results. In this study, we present Scorepochs, a simple and freely available tool for the automatic scoring of resting-state M/EEG epochs that aims to provide an objective method to aid M/EEG experts during the epoch selection procedure. We tested our approach on a freely available EEG dataset containing recordings from 109 subjects using the BCI2000 64 channel system
The Moderating Role of Family Communication in Suicidal Ideation and Victimization in Adolescents [Dataset]
No full textThis dataset comprises the data utilized in the research article: Buelga, S., Cava, M. J., Ortega-Barón, J., Goossens, L., & Moreno Ruiz, D. (2024). The moderating role of family communication in suicidal ideation and victimization in adolescents. Psicothema, 36(4), 369-379. https://doi.org/10.7334/psicothema2023.161
The objective of this study was to use two different moderated mediation models to analyze the direct and indirect—mediating—effects of traditional victimization and cyber-victimization on suicidal ideation in adolescents, as well as the moderating role of family communication in the relationships between traditional victimization, cyber-victimization, and suicidal ideation. The dataset includes data from 1007 Spanish adolescents, encompassing variables such as family communication, traditional victimization, cyber-victimization, suicidal ideation, sex, and age. . Significant direct and indirect effects of traditional victimization and cyber-victimization on suicidal ideation were confirmed. Family communication moderated the direct effects of cyber-victimization on suicidal ideation, but not the direct effects of traditional victimization on suicidal ideation. In addition, it moderated the relationship between traditional victimization and cyber-victimization. Family communication is a protective factor associated with decreased cyber-victimization in adolescents who suffer traditional victimization and reduced suicidal ideation in victims of cyber-victimization.
The measures used in the study were as follows:
• Family communication: Parent-Adolescent Communication Scale (Barnes & Olson, 1982; adaptation by Estévez et al., 2005).
• Traditional victimization: Peer Victimization Scale (Cava et al., 2007).
• Cyber-victimization: Cyber-victimization Scale (Buelga et al., 2019).
• Suicidal ideation: Suicidal Ideation Scale (Mariño et al., 1993; adaptation by Sánchez-Sosa et al., 2010).
The dataset and its associated documentation are available in CSV format, aligned with FAIR Principles. The dataset includes:
1. Vfinal_2023_dataset_Psth.csv, containing all variables and the participants' responses to the questionnaire items.
2. Readme_dataset_Psth.txt, providing general information about the dataset, including details on its structure, variables, and usage instructions.
3. Data_dictionary_Psth.csv, offering a comprehensive description of each variable, item, and factor in the dataset, designed to enhance findability, accessibility, interoperability, and reusability, in alignment with the FAIR Principles.Este conjunto de datos incluye la información utilizada en el artículo de investigación: Buelga, S., Cava, M. J., Ortega-Barón, J., Goossens, L., & Moreno Ruiz, D. (2024). The moderating role of family communication in suicidal ideation and victimization in adolescents. Psicothema, 36(4), 369-379. https://doi.org/10.7334/psicothema2023.161
El objetivo de este estudio fue utilizar dos modelos diferentes de mediación moderada para analizar los efectos directos e indirectos (mediados) de la victimización tradicional y la cibervictimización en la ideación suicida en adolescentes, así como el papel moderador de la comunicación familiar en las relaciones entre victimización tradicional, cibervictimización e ideación suicida. El conjunto de datos incluye información de 1007 adolescentes españoles, considerando variables como comunicación familiar, victimización tradicional, cibervictimización, ideación suicida, sexo y edad. Se confirmaron efectos directos e indirectos significativos de la victimización tradicional y de la cibervictimización en la ideación suicida. La comunicación familiar moderó los efectos directos de la cibervictimización en la ideación suicida, pero no los efectos directos de la victimización tradicional en la ideación suicida. También, moderó la relación entre victimización tradicional y cibervictimización. La comunicación familiar es un factor protector que disminuye la cibervictimización en adolescentes que sufren victimización tradicional y que reduce la ideación suicida en víctimas de cibervictimización.
Las medidas utilizadas en el estudio fueron las siguientes:
• Victimización: Escala de Victimización entre Iguales (Cava et al., 2007).
• Cibervictimización: Escala de Cibervictimización (Buelga et al., 2019).
• Ideación suicida: Escala de Ideación Suicida (Mariño et al., 1993; adaptada por Sánchez-Sosa et al., 2010).
• Comunicación familiar: Escala de Comunicación Padres-Adolescentes (Barnes & Olson, 1982; adaptada por Estévez et al., 2005).
El conjunto de datos y la documentación asociada están disponibles en formato CSV, alineados con los Principios FAIR. El conjunto de datos incluye:
1. Vfinal_2023_dataset_Psth.csv, que incluye todas las variables y las respuestas de los participantes a los ítems de los cuestionarios.
2. Readme_dataset_Psth.txt, que proporciona información general sobre el conjunto de datos, incluyendo detalles sobre su estructura, variables e instrucciones de uso.
3. Data_dictionary_Psth.csv, que ofrece una descripción detallada de cada variable, ítem y factor incluido en el conjunto de datos, diseñado para mejorar su localización, accesibilidad, interoperabilidad y reutilización, en línea con los Principios FAIR.The dataset comprises:
1. Vfinal_2023_dataset_Psth.csv, containing all variables and the participants' responses to the questionnaire items.
2. Readme_dataset_Psth.txt, which provides general information about the dataset, including details on its structure, variables, and usage instructions.
3. Data_dictionary_Psth.csv, which provides a comprehensive description of each variable, item, and factor in the dataset.v.fina
Arribant a Cava (1281 m.)
No full textBoExcursió del 17 al 19 de març de 1974. Itinerari: Pont d'Arsèguel - Arsèguel - Ansovell - Santuari del Boscal (1469 m.) - Cava - Veïnat de Can Pubill - Coll d'Oruga (1594 m.) - El Quer Foradat - Collada de Pallers - Estana - Santuari de Bastanist (1250 m.) - Montellà - Martinet - Puigcerd
The Holocene sequence of the Cava Olmi (Calderara di Reno, Bologna - Northern Italy; 30 m a.s.l.)
No full textA study of palynological samples and xylological remains of the Cava Olmi (Calderara di Reno, Bologna, Northern Italy, 30 m a.s.l.) reveals a continuous Holocene sequence, supported by one radiometric (6350-6150 BP
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