3,475 research outputs found

    Patent Disclosure and R&D Competition in Pharmaceuticals.

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    The prominent role played by patents within the pharmaceutical domain is unquestionable. In this paper we take an unusual perspective and focus on a relatively neglected implication of patents: the effect of patent-induced information disclosure (of both successes and failures) on the dynamics of R&D and market competition. The study builds upon the combination of two large datasets, linking the information about patents to firm level data on R&D projects and their outcome. Two case studies in the fields of anti-inflammatory compounds and cancer research complement our analysis. We show the important role played by patent disclosure in shaping firms technological trajectories through the possibility of reciprocal monitoring in a context of parallel research efforts, and suggest the importance of enhancing the diffusion of information concerning failures, not only to avoid wasteful duplication of innovative efforts, but also as a tool for the identification of promising research trajectories. This paper is the result of the "R&D competition" research project carried out jointly with Adrian Towse and Martina Garau of the Office of Health Economics, London, UK. A preliminary draft of the paper has been presented to the DRUID Summer Conference 2006 (Copenhagen), and to the 11th ISS Conference (Sophia-Antipolis).

    Patent Disclosure and R&D Competition in Pharmaceuticals.

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    The prominent role played by patents within the pharmaceutical domain is unquestionable. In this paper we take an unusual perspective and focus on a relatively neglected implication of patents: the effect of patent-induced information disclosure (of both successes and failures) on the dynamics of R&D and market competition. The study builds upon the combination of two large datasets, linking the information about patents to firm level data on R&D projects and their outcome. Two case studies in the fields of anti-inflammatory compounds and cancer research complement our analysis. We show the important role played by patent disclosure in shaping firms technological trajectories through the possibility of reciprocal monitoring in a context of parallel research efforts, and suggest the importance of enhancing the diffusion of information concerning failures, not only to avoid wasteful duplication of innovative efforts, but also as a tool for the identification of promising research trajectories. This paper is the result of the "R&D competition" research project carried out jointly with Adrian Towse and Martina Garau of the Office of Health Economics, London, UK. A preliminary draft of the paper has been presented to the DRUID Summer Conference 2006 (Copenhagen), and to the 11th ISS Conference (Sophia-Antipolis).patent disclosure; innovation; r&d competition

    Magnitude and spatial distribution of food and nutrition security during the COVID-19 pandemic in Tucumán (Argentina)

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    Objective: To describe the magnitude and spatial distribution of household food and nutrition security (FNS) during the COVID-19 pandemic in Tucumán (Argentina) and identify factors associated with food insecurity. Methods: During April and May 2020 a cross-sectional quantitative study was performed. Data from 3915 households were analyzed. The study of FNS was performed with the Latin American and Caribbean Scale for Food Security. To identify associated factors, bivariate and multivariate logistic regression models were applied. Results: Household food insecurity affected 55.9% of the sample (mild: 39.3%, moderate: 10.8%, severe: 5.8%). Analyzing the spatial distribution, the eastern area showed the highest food insecurity prevalence, followed by the south and west areas. Logistic regression analysis showed that household food insecurity varied according to household size, presence of children, socioeconomic status, and health area of residence. Conclusions: Household size, presence of children, socioeconomic status and public health area of residence were associated to household food insecurity. The perception of hunger was higher in larger households, in those with low and medium socioeconomic status and in households located in the southern area of the province.Fil: Cordero, Maria Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Estudios Sociales. Universidad Nacional de Tucumán. Instituto Superior de Estudios Sociales; ArgentinaFil: Cesani Rossi, María Florencia. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Laboratorio de Investigaciones en Ontogenia y Adaptación; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentin

    Geometry as Matrix of Construction of Roman Stone Bridges: The Augustus Bridge at Narni

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    The study of ancient Roman bridges embraces various disciplines and professions: engineers, architects, historians, archaeologists, and geologists. One of the first experiments completed by this research group was conducted on the Augustus Bridge at Narni: an integrated digital survey followed by the application of 3D digital modelling. Although only one of its four arches has been preserved, it can still be seen that the bridge was conceived on a large scale of technical complexity based on a precise knowledge that guided the choice of materials and architectonic solutions. The structure is immersed in an enchanting green landscape, which has for centuries attracted numerous scholars and artists. They have left us a precious iconographic heritage whose interpretation is still debated. As far as the geometry and proportions of the construction are concerned, to compare its present state with the original one, the structural ashlars of the bridge were modelled parametrically on the basis of transforming elementary geometric elements having adopted the Roman foot as the unit of measure

    Geometry as Matrix of Construction of Roman Stone Bridges: The Augustus Bridge at Narni

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    The study of ancient Roman bridges embraces various disciplines and professions: engineers, architects, historians, archaeologists, and geologists. One of the first experiments completed by this research group was conducted on the Augustus Bridge at Narni: an integrated digital survey followed by the application of 3D digital modelling. Although only one of its four arches has been preserved, it can still be seen that the bridge was conceived on a large scale of technical complexity based on a precise knowledge that guided the choice of materials and architectonic solutions. The structure is immersed in an enchanting green landscape, which has for centuries attracted numerous scholars and artists. They have left us a precious iconographic heritage whose interpretation is still debated. As far as the geometry and proportions of the construction are concerned, to compare its present state with the original one, the structural ashlars of the bridge were modelled parametrically on the basis of transforming elementary geometric elements having adopted the Roman foot as the unit of measure

    HBIM come processo di conoscenza. Modellazione e sviluppo del tipo architettonico

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    Il volume raccoglie gli esiti di uno studio sulle potenzialità derivanti dall’integrazione del BIM (Building Information Modeling) nei processi di documentazione, comunicazione e gestione del patrimonio costruito, indagando l’estensione del concetto di modello digitale rispetto alla stratificazione della conoscenza resa possibile dall’approccio HBIM (Heritage Building Information Modeling). Il tema viene affrontato con un duplice obiettivo: delineare un protocollo operativo legato alle possibilità di gestione dell’architettura esistente, potenziate dall’integrazione con le metodologie per l’acquisizione massiva di dati, e condurre una riflessione riguardo quale sia la corretta impostazione dell’HBIM affinché possa considerarsi un vero e proprio metodo per la conoscenza, la lettura e l’analisi del patrimonio architettonico. La sperimentazione affronta questi problemi in relazione a diversi casi di studio appartenenti all’architettura rinascimentale e al razionalismo italiano che, sebbene afferenti ad epoche storiche e a stili differenti, hanno in comune importanti caratteristiche: la standardizzazione del tipo, l’impostazione progettuale basata sul forte rigore geometrico, la definizione di regole compositive basate sulla classificazione e la ripetizione degli elementi formali. L’approccio seguito considera gli aspetti strutturali, le soluzioni compositive e i caratteri formali, ripercorrendo il processo progettuale a cui è subordinata la realizzazione dell’architettura

    Relación TG/HDL-C y resistencia a la insulina en mujeres adultas argentinas según su estado nutricional

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    Introduction: The ratio assessment TG/HDL-C is an indicator of LDL size, facilitating the detection of individuals with increased atherogenic risk. Estimating the size of the LDL becomes important, especially in patients with TG values near the upper limit of normal values of reference and HDL-C. The objective of the study is to estimate the association between TG/HDL-C and insulin resistance (IR) by nutritional status in adult women attending the Foundation for Endocrine Metabolic Diseases Research and Applied Clinical Research (FIEEM).Material and methods: Design Cross-sectional, non-pregnant adult women, apparently healthy, older than 30 years old, attending FIEEM in the Autonomous City of Buenos Aires. Dependent variable: TG/HDL-C ≥ 3.0 considered high value. Independent variables: IR by homeostatic model index HOMA-IR ≥ 2.5 categorizing the sample into two groups: with and without IR, and controlled by nutritional status using body mass index (BMI) and waist circumference (CC). SPSS Statistics 15.0, calculating X2 or Fisher exact test, OR with confidence intervals of 95% and establishing logistic regression p value < 0.05.Results: We evaluated a purposive sample of 104 women (31.4% and 26% IR with TG/HDL-C high). 84.6% were overweight or obese and 88.5% increased CC. Women with BMI had significantly increased 0.15-fold increased risk (95% CI = 0.01 to 1.26) for TG/HDL-C high (p = 0.04) than the control women. There was no significance with increased CC. The ratio TG/HDL-C high IR was significantly correlated (r = 0.30 p = 0.002).Conclusions: Body weight was significantly associated with IR and the ratio TG/HDL-C increased. This ratio correlated significantly with IR in apparently healthy women.Introducción: la valoración del índice TG/HDL-C resulta un indicador del tamaño de las LDL, facilitando la detección de individuos con riesgo aterogénico aumentado. El objetivo del estudio fue estimar la asociación entre TG/HDL-C y resistencia a la insulina (RI) según el estado nutricional en mujeres adultas.Material y métodos: diseño descriptivo transversal, de mujeres adultas no embarazadas, y aparentemente sanas, mayores de 30 años de edad, concurrentes a la Fundación para Investigación de Enfermedades Endócrino Metabólicas e Investigación Clínica Aplicada (FIEEM) en la Ciudad Autónoma de Buenos Aires. Variable dependiente: relación TG/HDL-C considerando valor elevado ≥ 3,0. Variables independientes: RI por Índice modelo  homeostático HOMA-IR ≥ 2,5 categorizando a la muestra en dos grupos: con y sin RI, y controladas según el estado nutricional mediante índice de masa corporal (IMC) y circunferencia de la cintura (CC). Estadística con SPSS 15,0, calculando X2 o prueba exacta de Fisher, OR con intervalos de confianza del 95% y regresión logística estableciendo valor p < 0,05.Resultados: se evaluó una muestra intencional de 104 mujeres (31,4% con RI y 26% con TG/HDL-C elevada). El 84,6% presentó sobrepeso u obesidad y el 88,5% CC aumentada. Las mujeres con IMC aumentado presentaron significativamente 0,15 veces (IC 95% = 0,01-1,26; p = 0,04) más riesgo de TG/HDL-C elevada que las mujeres normopeso. No hubo significación con la CC aumentada. La relación TG/HDL-C elevada se correlacionó significativamente con RI (r = 0,30 p= 0,002).Conclusiones: el peso corporal se asoció significativamente con RI y la relación TG/HDL-C aumentada. Esta relación se correlacionó con la RI en mujeres aparentemente sanas

    Chapter HBIM e ICT. Il BIM per la valorizzazione della Fortezza Pisana di Marciana

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    The 43rd UID conference, held in Genova, takes up the theme of ‘Dialogues’ as practice and debate on many fundamental topics in our social life, especially in these complex and not yet resolved times. The city of Genova offers the opportunity to ponder on the value of comparison and on the possibilities for the community, naturally focused on the aspects that concern us, as professors, researchers, disseminators of knowledge, or on all the possibile meanings of the discipline of representation and its dialogue with ‘others’, which we have broadly catalogued in three macro areas: History, Semiotics, Science / Technology. Therefore, “dialogue” as a profitable exchange based on a common language, without which it is impossible to comprehend and understand one another; and the graphic sign that connotes the conference is the precise transcription of this concept: the title ‘translated’ into signs, derived from the visual alphabet designed for the visual identity of the UID since 2017. There are many topics which refer to three macro sessions: - Witnessing (signs and history) - Communicating (signs and semiotics) - Experimenting (signs and sciences) Thanks to the different points of view, an exceptional resource of our disciplinary area, we want to try to outline the prevailing theoretical-operational synergies, the collaborative lines of an instrumental nature, the recent updates of the repertoires of images that attest and nourish the relations among representation, history, semiotics, sciences

    Kinetic profiles of the stereoselective reduction of acetophenone and its derivatives promoted by Galactomyces candidus GZ1. A mechanistic interpretation

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    A mechanistic interpretation of the kinetic profiles obtained for the stereoselective reduction of acetophenone promoted by Galactomyces candidus GZ1 under aerobic and anaerobic conditions was made. Based on experimental and bibliographical data, a mechanism which may involve the participation of two alcohol dehydrogenases with opposite stereoselectivities and alcohol oxidase is discussed. Due to the stereoselectivity of the reduction of acetophenone being changed when anaerobic conditions were used, this microorganism also permitted (S)-1-phenylethanol to be obtained in the absence of oxygen. Moreover, the kinetic profiles of the reactions of a racemic mixture of (R,S)-1-phenylethanol and pure (S)-1-phenylethanol with Gal. candidus were analyzed, which corroborated that there existed a reaction step where (S)-1-phenylethanol was oxidized to acetophenone. The results presented here show that not only is it possible to resolve racemic mixtures of phenylethanols when Gal. candidus is used as a biocatalyst, but that this is also efficient in causing the complete stereoinversion of pure (S)-1-phenylethanol to (R)-1-phenylethanol.Fil: Decarlini, Maria Florencia. Universidad Católica de Córdoba; ArgentinaFil: Bordon, Daniela Laura. Universidad Nacional de Córdoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Vázquez, Ana M.. Universidad Católica de Córdoba; ArgentinaFil: Demmel, Gabriela Ines. Universidad Católica de Córdoba; ArgentinaFil: Rossi, Laura Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: Aimar, Mario Leandro. Universidad Nacional de Córdoba; Argentin

    Calidad de vida relacionada a la salud, sobrepeso y obesidad en contextos de fragmentacion socioterritorial de la provincia de tucuman (Argentina)

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    Introduction: During childhood, health-related quality of life characterizes physical, cognitive, psychological and social domains considering the ability to develop activities according to the stage of growth and development. Its study in child populations with excess weight and obesity contributes to the determination of the global burden of the disease and to delineate public policies. Objective: To describe and compare health-related quality of life according to the presence or absence of overweight and obesity, in children from 8 to 12 years, Yerba Buena (Tucuman, Argentina). Methods: A transverse quantitative study was carried out in 985 public school children. Weight and height were collected. The body mass index was calculated, distinguishing the categories: 1) with overweight, 2) with obesity and 3) without excess weight. For the study of the health-related quality of life, the Kidscreen-52 questionnaire was applied. The statistical analysis considered the determination of prevalences, confidence intervals, analysis of variance and post hoc tests (p <0.05). Results: 34% of schoolchildren presented excess weight (20% overweight, 14% obesity), without sexual differences. Schoolchildren with obesity presented significantly lower average scores in the dimensions of health-related quality of life: Physical well-being, self-perception and autonomy (p <0.01). The self-perception of health in boys was more affected than in girls. Conclusions: Overweight and, especially obesity, compromise health-related quality of life of Yerba Buena schoolchildren. The most affected dimensions are those related to physical and psychosocial well-being (self-perception and autonomy). Girls perceive their health better than boys.Introducción: Durante la infancia, la calidad de vida relacionada con la salud caracteriza dominios físicos, cognitivos, psicológicos y sociales considerando la capacidad de desarrollar actividades de acuerdo con la etapa de crecimiento y desarrollo. Su estudio en poblaciones infantiles con obesidad contribuye a la determinación de la carga global de la enfermedad y a delinear políticas públicas. Objetivos: Describir y comparar la calidad de vida relacionada a la salud según la presencia o ausencia de sobrepeso y obesidad, en niños/as de 8 a 12 años, Yerba Buena (Tucumán, Argentina). Métodos: Se realizó un estudio cuantitativo transverso en 985 niños/as de escuelas públicas. Se relevó peso y talla. Se calculó el índice de masa corporal, distinguiéndose las categorías: 1) con sobrepeso, 2) con obesidad y 3) sin exceso de peso. Para el estudio de la calidad de vida relacionada con la salud se administró el cuestionario Kidscreen-52. El análisis estadístico consideró la determinación de prevalencias, intervalos de confianza, análisis de varianza y pruebas post hoc (p<0,05). Resultados: El 34% de los escolares presentó exceso de peso (20% sobrepeso, 14% obesidad), sin diferencias sexuales. Los escolares con obesidad presentaron puntuaciones medias significativamente más bajas en las dimensiones de calidad de vida relacionada a la salud: bienestar físico, autopercepción y autonomía (p<0,01). La autopercepción de la salud de los varones se vio más perjudicada que en las mujeres. Conclusiones: El sobrepeso y, especialmente la obesidad, comprometen la calidad de vida relacionada con la salud de los escolares de Yerba Buena. Las dimensiones más perjudicadas son las relacionadas con el bienestar físico y psicosocial (autopercepción y autonomía). Las mujeres perciben mejor su salud que los varones.Fil: Cordero, Maria Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Estudios Sociales. Universidad Nacional de Tucumán. Instituto Superior de Estudios Sociales; ArgentinaFil: Cesani Rossi, María Florencia. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Laboratorio de Investigaciones en Ontogenia y Adaptación; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Laboratorio de Investigaciones en Ontogenia y Adaptación; Argentin
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