99 research outputs found

    A very rare case of adult-type granulosa cell tumor.

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    Granulosa cell tumor (GST) of the testis is a rare neoplasm. Here we describe a case of an adult type GST. More than a year after surgical treatment, without any other treatment, the patient is alive without sign of disease

    Rapid Mathematical Programming for Cooperative Truck Networks

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    Many biological assays require the ability to isolate and process single cells. Some research fields, such as the characterization of rare cells, the in vitro processing of stem cells, and the study of early stage cell differentiation, call for the additional and typically unmet ability to work with extremely low-count cell populations. In all these cases, efficient single-cell handling must be matched with the ability to work on a limited number of cells with a low cell loss rate. In this paper, we present a platform combining flow-through processing with deterministic (nonstatistical) patterning of cells coming from extremely small cell populations. We describe here modules using dielectrophoresis to control the position of cells flowing in microchannels and to pattern them in open microwells where cells were further analyzed. K562 cells continuously flowing at a speed of up to 100 μm/s were tridimensionally focused, aligned, and patterned inside microwells. A high-patterning yield and low cell loss rate were demonstrated experimentally: 15uL drops, containing an average of 15 cells, were transferred to the microchannel with an 83% yield, and cells were then patterned into microwells with a 100% yield. The deterministic patterning of cells was demonstrated both by isolating single cells in microwells and by creating clusters composed of a predetermined number of cells. Cell proliferation was assessed by easily recovering cells from open microwells, and a growth rate comparable to the control was obtained

    Laparoscopic simple prostatectomy vs bipolar plasma enucleation of the prostate in large benign prostatic hyperplasia. a two-center 3-year comparison

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    Purpose: To compare surgery outcomes and safety of button bipolar enucleation of the prostate vs laparoscopic simple prostatectomy in patients with large prostates (> 80 g) in a two-center cohort study. Methods: All patients with lower urinary tract symptoms due to benign prostatic enlargement (Prostate volume > 80 cc) undergoing button bipolar enucleation of the prostate (BTUEP) or laparoscopic simple prostatectomy (LSP) in two centers were enrolled. Data on clinical history, physical examination, urinary symptoms, uroflowmetry and prostate volume were collected at 0, 1, 3 6, 12, 24 and 36 months. Early and long-term complications were recorded. Results: Overall, 296 patients were enrolled. Out of them, 167/296 (56%) performed a LSP and 129/296 (44%) performed a BTUEP. In terms of efficacy both procedures showed durable results at three years with a reintervention rate of 8% in the LSP group and of 5% in the BTUEP group. In terms of safety, BTUEP and LSP presented similar safety profiles with a 9% of transfusion rate and no major complications. Conclusion: LSP and BTUEP are safe and effective in treating large-volume adenomas with durable results at three years when performed in experienced centers

    Un proyecto de educación masiva de calidad

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    Algunos autores convergen sobre la idea de masividad como acceso formal a las universidades y acceso real al conocimiento, aunque para ser posible esto último, es necesario que exista un alto grado de calidad en la educación. La introducción a la noción de masividad o inclusión cambia el eje de discusión al reconocer que la sociedad no es homogénea, y la diversidad constituye un componente a ser revalorizado. El presente informe contempla el análisis y estudio de la relación de los conceptos de calidad y masividad dentro de la Educación Universitaria, observando particularmente el caso de La Universidad Nacional de La Matanza, que ha sabido correlacionar estos conceptos. El ingreso directo a la mayor parte de las Instituciones de Educación Superior públicas en Argentina, junto a la gratuidad de las mismas son factores considerados por sí mismos políticas inclusivas en sentido amplio. Según el Centro de Estudios de la Educación Argentina, en 2015 las Universidades incrementaron el promedio de graduados. Particularmente, este trabajo pone de manifiesto que en la UNLaM la concurrencia masiva de alumnos no ha ido en detrimento de la calidad -tanto educativa como de gestión-de esta Casa de Altos Estudios, contrariamente a lo que habitualmente ocurre.Fil: Narváez, Jorge Luis. Universidad Nacional de La Matanza. Departamento de Ingeniería e Investigaciones Tecnológicas; Argentina.Fil: Pepe, María Laura. Universidad Nacional de La Matanza. Departamento de Ingeniería e Investigaciones Tecnológicas; Argentina.Fil: Carro, Roberto Ricardo. Universidad Nacional de La Matanza. Departamento de Ingeniería e Investigaciones Tecnológicas; Argentina.Fil: Narváez, Adriana Haydee. Universidad Nacional de La Matanza. Departamento de Ingeniería e Investigaciones Tecnológicas; Argentina.Fil: García, Adrián Rafael. Universidad Nacional de La Matanza. Departamento de Ingeniería e Investigaciones Tecnológicas; Argentina.Fil: Bombino, María Alejandra. Universidad Nacional de La Matanza. Departamento de Ingeniería e Investigaciones Tecnológicas; Argentina.Fil: Cinquegrani, Clara Irma. Universidad Nacional de La Matanza. Departamento de Ingeniería e Investigaciones Tecnológicas; Argentina.Fil: Spósitto, Verónica Andrea. Universidad Nacional de La Matanza. Departamento de Ingeniería e Investigaciones Tecnológicas; Argentina.Fil: Narváez, Gabriela Andrea. Universidad Nacional de La Matanza. Departamento de Ingeniería e Investigaciones Tecnológicas; Argentina.Fil: Giulianelli, Juan Ignacio. Universidad Nacional de La Matanza. Departamento de Ingeniería e Investigaciones Tecnológicas; Argentina.Fil: Mouta, Silvina Raquel. Universidad Nacional de La Matanza. Departamento de Ingeniería e Investigaciones Tecnológicas; Argentina.Fil: Pera, Florencia S. Universidad Nacional de La Matanza. Departamento de Ingeniería e Investigaciones Tecnológicas; Argentina

    Fuà Giorgio

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    Grandi navi veloci

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