1,467 research outputs found

    Diagnóstico organizacional de la productora audiovisual de Cumbia Films S.A.S /

    Get PDF
    Una Estructura organizacional es básica para todas las empresas, debido a que se establecen características determinantes sobre la organización, estableciendo autoridad, jerarquía, cadena de mando y organigramas, entre otros. Teniendo en cuenta la actividad que realiza la empresa se establece su estructura, constituyendo sus funciones, las cuáles van encaminadas a la productividad en forma organizada, ordenada y controlada, conllevando al alcance de sus metas y objetivos que han sido proyectados. En la actualidad las organizaciones tienden a ser muy competitivas e innovadoras, para lograr mantenerse en el mercado y alcanzar más rentabilidad, con una visión de expansión regional, nacional e internacional; pero uno de los aspectos importantes para lograr este objetivo es la realización de su estructura organizacional.Incluye referencias bibliográficas (páginas 125-127) y anexo

    Descripción morfológica del aparato bucal de adultos de Urotrygon nana y U. rogersi (Urotrygonidae): diferencias intraespecíficas e interespecíficas

    Get PDF
    Background. Teeth can change significantly in shape and size depending on their position in the jaw, age and sex of the organism. Sometimes due to the loss of these teeth, an incomplete description of the dental morphology exists for several batoid species, which makes it difficult to evaluate intraspecific and interspecific differences. Goals. Describe the differences in tooth morphology as well as the arrangement of teeth in adults of two species of batoids (Urotrygon nana and U. rogersi) distributed over soft bottoms of the continental shelf of the Mexican tropical Pacific. Methods. After collecting the jaws of ten adult individuals of U. nana and U. rogersi we counted the number of rows and series of the first functional row, and described the shape of the cartilage and teeth. In addition, we identified the type of heterodonty. Results. Similarities between the cartilage and teeth of both species were observed. In both sexes of U. nana monognatic heterodonty was observed, with three dental morphotypes in Palatocuadrado and two in Meckels cartilage. U. rogersi has sexual heterodonty with just one morph. Conclusions. We believe it is necessary to expand the number of samples (taking into account the different stages of life), and generate additional ethological studies that provide information on the reproductive behavior of the species.  Antecedentes. Los dientes pueden cambiar significativamente de forma y tamaño, dependiendo de su posición en la mandíbula, de la edad y el sexo del organismo. Algunas veces, debido a la pérdida continua de éstos, se presenta una descripción incompleta de la morfología dentaria para varias especies de batoideos, lo cual dificulta evaluar diferencias intraespecíficas e interespecíficas. Objetivos. Describir las diferencias en la morfología dentaria, así como la disposición de los dientes en adultos de dos especies de batoideos (Urotrygon nana y U. rogersi) distribuidos sobre los fondos blandos de la plataforma continental del océano Pacífico tropical mexicano. Métodos. Se recolectaron las mandíbulas de diez individuos adultos de U. nana y de U. rogersi, se contó el número de filas y series de la primera hilera funcional y se realizó la descripción de la forma de los cartílagos y de los dientes. Además, se identificó el tipo de heterodoncia. Resultados. Se observaron similitudes entre los cartílagos y los dientes de ambas especies. En ambos sexos de U. nana se presentó heterodoncia monognática y se observaron tres morfotipos dentarios en el palatocuadrado y dos en el cartílago de Meckel. Para U. rogersi se encontró una heterodoncia sexual con un solo morfotipo. Conclusiones. Es necesario ampliar el número de muestra, a fin de considerar los diferentes estadios de vida, y desarrollar estudios de carácter etológico que aporten información sobre el comportamiento reproductivo de las especies

    Inter-acciones: apuestas regionales de la investigación en comunicación

    Get PDF
    Transformación social, desarrollo y gestión de la comunicación en investigación; Educación y comunicación en procesos de transformación cultural; y Medios, convergencia y cibercultura. Además, responde a la pregunta: ¿qué líneas aborda la investigación en Comunicación Social desde la modalidad virtual y a distancia de UNIMINUTO? Lo anterior, con el objetivo de acoplar la investigación básica y aplicada desde el nivel de pregrado, en atención a los retos que afronta la formación del nuevo comunicador social con respecto al componente de investigación e innovación desde los semilleros de investigación; además, en consideración a que los semilleros son un espacio institucional para el fomento de la cultura investigativa institucional y de programas, propiciar la interacción entre la comunidad académica con miras al fortalecimiento de la excelencia académica, el desarrollo social y el progreso científico de la comunidad, así como la generación de la capacidad de trabajo en grupo, la interdisciplinariedad y el establecimiento de redes de investigación

    Long-Term Real-World Effectiveness and Safety of Ustekinumab in Crohn’s Disease Patients: The SUSTAIN Study

    Get PDF
    Background Large real-world-evidence studies are required to confirm the durability of response, effectiveness, and safety of ustekinumab in Crohn’s disease (CD) patients in real-world clinical practice. Methods A retrospective, multicentre study was conducted in Spain in patients with active CD who had received ≥1 intravenous dose of ustekinumab for ≥6 months. Primary outcome was ustekinumab retention rate; secondary outcomes were to identify predictive factors for drug retention, short-term remission (week 16), loss of response and predictive factors for short-term efficacy and loss of response, and ustekinumab safety. Results A total of 463 patients were included. Mean baseline Harvey-Bradshaw Index was 8.4. A total of 447 (96.5%) patients had received prior biologic therapy, 141 (30.5%) of whom had received ≥3 agents. In addition, 35.2% received concomitant immunosuppressants, and 47.1% had ≥1 abdominal surgery. At week 16, 56% had remission, 70% had response, and 26.1% required dose escalation or intensification; of these, 24.8% did not subsequently reduce dose. After a median follow-up of 15 months, 356 (77%) patients continued treatment. The incidence rate of ustekinumab discontinuation was 18% per patient-year of follow-up. Previous intestinal surgery and concomitant steroid treatment were associated with higher risk of ustekinumab discontinuation, while a maintenance schedule every 12 weeks had a lower risk; neither concomitant immunosuppressants nor the number of previous biologics were associated with ustekinumab discontinuation risk. Fifty adverse events were reported in 39 (8.4%) patients; 4 of them were severe (2 infections, 1 malignancy, and 1 fever). Conclusions Ustekinumab is effective and safe as short- and long-term treatment in a refractory cohort of CD patients in real-world clinical practice

    La Dorada, Caldas : un lugar mágico lleno de paz y emociones mil ¡Que viva mi terruño que tanto amo! : recopilación de cuentos folclóricos

    Get PDF
    En el libro recupera cuentos folclóricos, versos, canciones, juegos y mitos producto de la tradición oral difundida en La Dorada Caldas y le da reconocimiento a los narradores de la cultura oral del poblado.In the book, he recovers folk tales, verses, songs, games and myths that are the product of the oral tradition spread in La Dorada Caldas and gives recognition to the narrators of the oral culture of the town.El fantasma -- Anécdota de la patasola -- Historia del mohán -- El pollito pio -- Nos ayudamos -- La emboscada -- Toño un amigo con diversidad -- El horripilante olvido en medio de un temblor -- Valoremos -- Mito de un arriero -- El juego de la candela -- Canción el capitán de un buque -- Versos -- Multiplicadores de la cultura oral.na66 página

    Using Interpretable Machine Learning to Identify Baseline Predictive Factors of Remission and Drug Durability in Crohn’s Disease Patients on Ustekinumab

    Get PDF
    Ustekinumab has shown efficacy in Crohn's Disease (CD) patients. To identify patient profiles of those who benefit the most from this treatment would help to position this drug in the therapeutic paradigm of CD and generate hypotheses for future trials. The objective of this analysis was to determine whether baseline patient characteristics are predictive of remission and the drug durability of ustekinumab, and whether its positioning with respect to prior use of biologics has a significant effect after correcting for disease severity and phenotype at baseline using interpretable machine learning. Patients' data from SUSTAIN, a retrospective multicenter single-arm cohort study, were used. Disease phenotype, baseline laboratory data, and prior treatment characteristics were documented. Clinical remission was defined as the Harvey Bradshaw Index <= 4 and was tracked longitudinally. Drug durability was defined as the time until a patient discontinued treatment. A total of 439 participants from 60 centers were included and a total of 20 baseline covariates considered. Less exposure to previous biologics had a positive effect on remission, even after controlling for baseline disease severity using a non-linear, additive, multivariable model. Additionally, age, body mass index, and fecal calprotectin at baseline were found to be statistically significant as independent negative risk factors for both remission and drug survival, with further risk factors identified for remission

    Management of acute diverticulitis with pericolic free gas (ADIFAS). an international multicenter observational study

    Get PDF
    Background: There are no specific recommendations regarding the optimal management of this group of patients. The World Society of Emergency Surgery suggested a nonoperative strategy with antibiotic therapy, but this was a weak recommendation. This study aims to identify the optimal management of patients with acute diverticulitis (AD) presenting with pericolic free air with or without pericolic fluid. Methods: A multicenter, prospective, international study of patients diagnosed with AD and pericolic-free air with or without pericolic free fluid at a computed tomography (CT) scan between May 2020 and June 2021 was included. Patients were excluded if they had intra-abdominal distant free air, an abscess, generalized peritonitis, or less than a 1-year follow-up. The primary outcome was the rate of failure of nonoperative management within the index admission. Secondary outcomes included the rate of failure of nonoperative management within the first year and risk factors for failure. Results: A total of 810 patients were recruited across 69 European and South American centers; 744 patients (92%) were treated nonoperatively, and 66 (8%) underwent immediate surgery. Baseline characteristics were similar between groups. Hinchey II-IV on diagnostic imaging was the only independent risk factor for surgical intervention during index admission (odds ratios: 12.5, 95% CI: 2.4-64, P =0.003). Among patients treated nonoperatively, at index admission, 697 (94%) patients were discharged without any complications, 35 (4.7%) required emergency surgery, and 12 (1.6%) percutaneous drainage. Free pericolic fluid on CT scan was associated with a higher risk of failure of nonoperative management (odds ratios: 4.9, 95% CI: 1.2-19.9, P =0.023), with 88% of success compared to 96% without free fluid ( P &lt;0.001). The rate of treatment failure with nonoperative management during the first year of follow-up was 16.5%. Conclusion: Patients with AD presenting with pericolic free gas can be successfully managed nonoperatively in the vast majority of cases. Patients with both free pericolic gas and free pericolic fluid on a CT scan are at a higher risk of failing nonoperative management and require closer observation

    Jardins per a la salut

    Get PDF
    Facultat de Farmàcia, Universitat de Barcelona. Ensenyament: Grau de Farmàcia. Assignatura: Botànica farmacèutica. Curs: 2014-2015. Coordinadors: Joan Simon, Cèsar Blanché i Maria Bosch.Els materials que aquí es presenten són el recull de les fitxes botàniques de 128 espècies presents en el Jardí Ferran Soldevila de l’Edifici Històric de la UB. Els treballs han estat realitzats manera individual per part dels estudiants dels grups M-3 i T-1 de l’assignatura Botànica Farmacèutica durant els mesos de febrer a maig del curs 2014-15 com a resultat final del Projecte d’Innovació Docent «Jardins per a la salut: aprenentatge servei a Botànica farmacèutica» (codi 2014PID-UB/054). Tots els treballs s’han dut a terme a través de la plataforma de GoogleDocs i han estat tutoritzats pels professors de l’assignatura. L’objectiu principal de l’activitat ha estat fomentar l’aprenentatge autònom i col·laboratiu en Botànica farmacèutica. També s’ha pretès motivar els estudiants a través del retorn de part del seu esforç a la societat a través d’una experiència d’Aprenentatge-Servei, deixant disponible finalment el treball dels estudiants per a poder ser consultable a través d’una Web pública amb la possibilitat de poder-ho fer in-situ en el propi jardí mitjançant codis QR amb un smartphone

    Differential cross section measurements for the production of a W boson in association with jets in proton–proton collisions at √s = 7 TeV

    Get PDF
    Measurements are reported of differential cross sections for the production of a W boson, which decays into a muon and a neutrino, in association with jets, as a function of several variables, including the transverse momenta (pT) and pseudorapidities of the four leading jets, the scalar sum of jet transverse momenta (HT), and the difference in azimuthal angle between the directions of each jet and the muon. The data sample of pp collisions at a centre-of-mass energy of 7 TeV was collected with the CMS detector at the LHC and corresponds to an integrated luminosity of 5.0 fb[superscript −1]. The measured cross sections are compared to predictions from Monte Carlo generators, MadGraph + pythia and sherpa, and to next-to-leading-order calculations from BlackHat + sherpa. The differential cross sections are found to be in agreement with the predictions, apart from the pT distributions of the leading jets at high pT values, the distributions of the HT at high-HT and low jet multiplicity, and the distribution of the difference in azimuthal angle between the leading jet and the muon at low values.United States. Dept. of EnergyNational Science Foundation (U.S.)Alfred P. Sloan Foundatio

    Penilaian Kinerja Keuangan Koperasi di Kabupaten Pelalawan

    Full text link
    This paper describe development and financial performance of cooperative in District Pelalawan among 2007 - 2008. Studies on primary and secondary cooperative in 12 sub-districts. Method in this stady use performance measuring of productivity, efficiency, growth, liquidity, and solvability of cooperative. Productivity of cooperative in Pelalawan was highly but efficiency still low. Profit and income were highly, even liquidity of cooperative very high, and solvability was good
    corecore