Impregnación de cloruro de calcio y acido ascórbico en la conservación de la la fresa (variedad chandler)

La presente investigación se llevó a cabo con el fin de determinar la solución isotónica que permita obtener una mejor calidad de la fresa empacada y almacenada en refrigeración. La adición de cloruro de calcio y acido ascórbico, se realizó por el método de impregnación al vacio, donde se utilizaron dos soluciones diferentes de edulcorantes (sacarosa y sorbitol). La fresa tratada, fue empacada en bolsas de polietileno con un peso aproximado de 200gr, la cual fue almacenada a 4-5°C, donde se realizó un seguimiento de las características fisicoquímicas, fisiológicas y organolépticas de la fresa variedad Chandler en estado de madurez 3 y 4, según la Norma Técnica Colombiana (NTC 4103 de 1996), durante los días 0, 8 y 15. Al concluir el estudio, se determinó que la solución edulcorante que proporciona una mejor absorción del cloruro de calcio y acido ascórbico es la sacarosa, prolongando así la vida útil de la misma

Evaluación de los impactos en la calidad de la energía por la compensación de potencia reactiva con bancos de condensadores y D-STATCOM

This paper presents an assessment of capacitor banks and Distribution Static Compensator (D-STATCOM) with respect to their impact on energy quality. Tests were done with capacitor banks built with electrolytic capacitors commonly used in industrial applications and a D-STATCOM. Experimental tests were performed for power factor correction in order to reduce the reactive power demanded from the electrical grid for inductive-resistive loads. For comparative purposes, the control of the D-STATCOM was set to operate with similar compensation conditions to that of the capacitor banks. Results show that under the same test conditions capacitor banks produce higher Total Harmonic Distortion (THD) than D-STATCOM.Este artículo presenta una evaluación de los bancos de capacitores y el Compensador Estático de Distribución (D-STATCOM) con respecto a su impacto en la calidad de la energía. Las pruebas fueron hechas con bancos de capacitores construidos con capacitores electrolíticos comúnmente usados en aplicaciones industriales y un D-STATCOM. Las pruebas experimentales fueron realizadas para corrección del factor de potencia, con el fin de reducir la potencia reactiva demandada por la red eléctrica con cargas resistivo-inductivas. Por propósitos comparativos, el control del D-STATCOM se programó para operar en similares condiciones de compensación respecto al banco de capacitores. Los resultados muestran que, bajo las mismas condiciones de prueba, los bancos de capacitores producen mayor Distorsión Armónica Total que el D-STATCOM

A simple but efficient voice activity detection algorithm through Hilbert transform and dynamic threshold for speech pathologies

A simple but efficient voice activity detector based on the Hilbert transform and a dynamic threshold is presented to be used on the pre-processing of audio signals -- The algorithm to define the dynamic threshold is a modification of a convex combination found in literature -- This scheme allows the detection of prosodic and silence segments on a speech in presence of non-ideal conditions like a spectral overlapped noise -- The present work shows preliminary results over a database built with some political speech -- The tests were performed adding artificial noise to natural noises over the audio signals, and some algorithms are compared -- Results will be extrapolated to the field of adaptive filtering on monophonic signals and the analysis of speech pathologies on futures works20th Argentinean Bioengineering Society Congress, SABI 2015 (XX Congreso Argentino de Bioingeniería y IX Jornadas de Ingeniería Clínica)28–30 October 2015, San Nicolás de los Arroyos, Argentin

Identification of circulating miRNA profiles that distinguish malignant pleural mesothelioma from lung adenocarcinoma

Accurate diagnosis of malignant pleura mesothelioma (MPM) is challenging. Differential diagnosis of MPM versus lung adenocarcinoma (AD) is particularly difficult, yet clinically important since the two neoplasias call for different treatment approaches. Circulating miRNA-profiling to identify miRNAs that can be used to distinguish MPM from AD has not been reported. We conducted a wide screening study of miRNA profiles in serum pools of MPM patients (N = 11), AD patients (N = 36), and healthy subjects (N = 45) to identify non-invasive biomarkers for differential diagnosis of MPM and AD, using deep sequencing. Sequencing detected up to 300 known miRNAs and up to 25 novel miRNAs species in the serum samples. Among known miRNAs, 7 were upregulated in MPM and 12 were upregulated in AD compared to healthy controls. Of these, eight were distinctive for AD and three were unique for MPM. Direct comparison of the miRNA profiles for MPM and AD revealed differences in miRNA levels that could be useful for differential diagnosis. No differentially expressed novel miRNAs were found. Further bioinformatics analysis indicated that three upregulated miRNAs in MPM are associated with the p38 pathway. There are unique alterations in serum miRNAs in MPM and AD compared to healthy controls, as well as differences between MPM and AD profiles. Differing miRNA levels between MPM and AD may be useful for differential diagnosis. A potential association to p38 pathway of three upregulated miRNAs in MPM was revealed

Regions identity between the genome of vertebrates and non-retroviral families of insect viruses

<p>Abstract</p> <p>Background</p> <p>The scope of our understanding of the evolutionary history between viruses and animals is limited. The fact that the recent availability of many complete insect virus genomes and vertebrate genomes as well as the ability to screen these sequences makes it possible to gain a new perspective insight into the evolutionary interaction between insect viruses and vertebrates. This study is to determine the possibility of existence of sequence identity between the genomes of insect viruses and vertebrates, attempt to explain this phenomenon in term of genetic mobile element, and try to investigate the evolutionary relationship between these short regions of identity among these species.</p> <p>Results</p> <p>Some of studied insect viruses contain variable numbers of short regions of sequence identity to the genomes of vertebrate with nucleotide sequence length from 28 bp to 124 bp. They are found to locate in multiple sites of the vertebrate genomes. The ontology of animal genes with identical regions involves in several processes including chromatin remodeling, regulation of apoptosis, signaling pathway, nerve system development and some enzyme-like catalysis. Phylogenetic analysis reveals that at least some short regions of sequence identity in the genomes of vertebrate are derived the ancestral of insect viruses.</p> <p>Conclusion</p> <p>Short regions of sequence identity were found in the vertebrates and insect viruses. These sequences played an important role not only in the long-term evolution of vertebrates, but also in promotion of insect virus. This typical win-win strategy may come from natural selection.</p

The other special education : remembrance of a pedagogical journey

RESUMEN: La pregunta constante por las múltiples formas de relacionarse entre los seres humanos nos condujo a comprender que la educación y particularmente la educación especial —como nuestro espacio y discurso—, ha traído consigo un desconocimiento por el otro, que no se reduce al mundo exterior, la calle, la familia y la sociedad, sino que convierte también la escuela y sus prácticas en perpetuadoras de esto, revistiendo la educación de fines particulares, homogeneizantes y excluyentes, lo cual nos ha conducido por discursos donde la diversidad y la pluralidad aparecen como una discusión ambigua: teorías que ponen de manifiesto la otredad como una disertación humanista y desvictimizadora, o una realidad que nos confronta y cuestiona sobre eso que no queremos ser. Es, entonces, en medio de la pregunta por la educación, por los otros y nosotras mismas, por nuestras prácticas pedagógicas, que surgen reflexiones, historias, relaciones, sujetos y diferencias, a partir de la tesis de pregrado “Retos y perspectivas del encuentro entre educación indígena y educación especial: ¿narraciones interculturales?”, la cual nos convocó a pensar, contar y vivir este acontecimiento en el presente artículo, donde compartimos la experiencia educativa desde la conceptualización alrededor de la educación especial y el contacto con diferentes contextos educativos indígenas, lo que nos reveló posibles respuestas que significan y resignifican nuestra razón de ser como futuras maestras, viviendo, pensando y sintiendo una educación especial otra.ABSTRACT: The recurring question about the multiple forms of relationships among human beings led us to understand that education—particularly special education, as our realm and discourse—has brought about some forms of ignoring the others. This does not happen only in external environments, such as streets, the family and the society at large, but also inside the school and its practices, which perpetuate this situation, thus providing education with particular homogenizing and excluding ends, and leading to discourses in which diversity and plurality appear as part of an ambiguous discussion: As theories that introduce otherness as a humanistic and un-victimizing reasoning, or as a reality that confronts and questions us about what we don´t want to be. It is therefore amid the question for education, for the others and ourselves, and for our pedagogical practices, that reflections, histories, relationships, individuals, and differences sprung from the undergraduate dissertation “Challenges and perspectives of the encounter of indigenous education and special education: Intercultural narratives?” This work summoned us to think, tell, and live such event in this article, where we share our educative experience from the conceptualization about special education and the contact with different indigenous education contexts, which revealed to us possible responses that make ou

Evaluación de la relación entre rendimiento académico y estrés en estudiantes de Medicina

ResumenObjetivo: Estudiar algunos factores de riesgo que inciden en el rendimiento acad&eacute;mico (estr&eacute;s, alcohol, redes de amistad, depresi&oacute;n y funcionalidad familiar) en los estudiantes de la Facultad de Medicina de la Universidad de Manizales. Materiales y m&eacute;todos: Estudio descriptivo de una muestra probabil&iacute;stica de estudiantes de 2&ordm; a 11&ordm; semestre. Se aplic&oacute; una encuesta trasversal an&oacute;nima en donde se es&iacute;ablec&aacute;eron carac&iacute;er&iacute;s&iacute;&aacute;cas soc&aacute;odemogr&aacute;f&aacute;casI cul&iacute;uralesI escolares y motivacionales, as&iacute; como la presencia de estr&eacute;s, depresi&oacute;n, disfunci&oacute;n familiar y consumo de sustancias. Se correlacionaron las variables con el rendimiento acad&eacute;mico, mediante prueba de ch&aacute; cuadradoI coef&aacute;c&aacute;en&iacute;es de correlac&aacute;&oacute;n de mearson &oacute; an&aacute;l&aacute;s&aacute;s regresi&oacute;n lineal. Resultados: Se analizaron 212 estudiantes entre 17 y 31 a&ntilde;os, procedentes en su mayor&iacute;a de otra ciudad. Todas lasvariables estuvieron asociadas con el rendimiento acad&eacute;mico (&alpha; &le; 0.05). Conclusiones: Se encontr&oacute; relaci&oacute;n significativa entre el rendimiento acad&eacute;mico y estr&eacute;s, y de &eacute;ste con depresi&oacute;n, alcohol y funcionalidad familiar.[Berm&uacute;dez SB, Dur&aacute;n MM, Escobar C, Morales A, Monroy SA, Ram&iacute;rez A, et al. Evaluaci&oacute;n de la relaci&oacute;n entre rendimiento acad&eacute;mico y estr&eacute;s en estudiantes de Medicina MedUNAB 2006; 9:198-205].Palabras clave: Estr&eacute;s, Alcoholismo, Depresi&oacute;n, Funci&oacute;n familiar, Red de amigos, Rendimiento Acad&eacute;mico

A novel IgE antibody targeting the prostate-specific antigen as a potential prostate cancer therapy

Prostate cancer (PCa) is the second leading cause of cancer deaths in men in the United States. The prostate-specific antigen (PSA), often found at high levels in the serum of PCa patients, has been used as a marker for PCa detection and as a target of immunotherapy. The murine IgG1 monoclonal antibody AR47.47, specific for human PSA, has been shown to enhance antigen presentation by human dendritic cells and induce both CD4 andCD8 T-cell activation when complexed with PSA. In this study, we explored the properties of a novel mouse/human chimeric anti-PSA IgE containing the variable regions of AR47.47 as a potential therapy for PCa. Our goal was to take advantage of the unique properties of IgE in order to trigger immune activation against PCa.Fil: Daniels-Wells, Tracy R. University of California. David Geffen School of Medicine. Department of Surgery. Division of Surgical Oncology; Estados Unidos de América;Fil: Helguera, Gustavo Fernando. Universidad de Buenos Aires. Facultad de Farmacia y Bioquimica. Departamento de Tecnologia Farmaceutica; Argentina; University of California. David Geffen School of Medicine. Department of Surgery. Division of Surgical Oncology; Estados Unidos de América;Fil: Leuchter, Richard K. University of California. David Geffen School of Medicine. Department of Surgery. Division of Surgical Oncology; Estados Unidos de América;Fil: Quintero, Rafael. University of California. David Geffen School of Medicine. Department of Surgery. Division of Surgical Oncology; Estados Unidos de América;Fil: Kozman, Maggie. University of California. David Geffen School of Medicine. Department of Surgery. Division of Surgical Oncology; Estados Unidos de América;Fil: Rodríguez, José A.. University of California. David Geffen School of Medicine. Department of Surgery. Division of Surgical Oncology; Estados Unidos de América; University of California. The Molecular Biology Institute; Estados Unidos de América;Fil: Ortiz-Sánchez, E. University of California. David Geffen School of Medicine. Department of Surgery. Division of Surgical Oncology; Estados Unidos de América; Biomedical Research in Cancer. Basic Research Division. National Institute of Cancerology; Mexico.;Fil: Martínez-Maza, Otonel. University of California. David Geffen School of Medicine. Department of Surgery. Division of Surgical Oncology; Estados Unidos de América;Fil: Schultes, Brigit C.. Advanced Immune Therapeutics; Estados Unidos de América;Fil: Nicodemus Christopher. Advanced Immune Therapeutics; Estados Unidos de América;Fil: Penichet, Manuel. University of California. David Geffen School of Medicine. Department of Surgery. Division of Surgical Oncology; Estados Unidos de América; University of California. The Molecular Biology Institute; Estados Unidos de América

Inducción a la formación profesional

Desarrolla a manera de módulos, la forma y la información que de se debe entregar a los aprendices al momento de que estos ingresen a la institución para conocer el contexto, deberes, derechos, entre otros, que los estarán rodeando en el ámbito académico.It develops as a module, the form and the information that must be given to the apprentices when they enter the institution to know the context, duties, rights, among others, that will be surrounding them in the academic field.Conocimiento e Integración Grupal -- Inducción al SENA -- Inducción a la Formación Profesional Integral -- Inducción al Centro, Programa o Proyecto -- Inducción al Programa de Formación Profesional -- Inducción a los Servicios al Alumnado -- Servicios al Alumnado: Biblioteca -- Servicios al Alumnado: Promoción y contratación de Aprendices -- Servicios al Alumnado: Trabajo Social -- Servicios al Alumnado: Capellanía -- Servicios al Alumnado: Registro y Certificación -- Servicios al Alumnado: Validación -- Servicios al Alumnado: Actividades Recreativas, Culturales y Deportivas.naPara sujetos de formación40 página

The European Solar Telescope

The European Solar Telescope (EST) is a project aimed at studying the magnetic connectivity of the solar atmosphere, from the deep photosphere to the upper chromosphere. Its design combines the knowledge and expertise gathered by the European solar physics community during the construction and operation of state-of-the-art solar telescopes operating in visible and near-infrared wavelengths: the Swedish 1m Solar Telescope, the German Vacuum Tower Telescope and GREGOR, the French Télescope Héliographique pour l'Étude du Magnétisme et des Instabilités Solaires, and the Dutch Open Telescope. With its 4.2 m primary mirror and an open configuration, EST will become the most powerful European ground-based facility to study the Sun in the coming decades in the visible and near-infrared bands. EST uses the most innovative technological advances: the first adaptive secondary mirror ever used in a solar telescope, a complex multi-conjugate adaptive optics with deformable mirrors that form part of the optical design in a natural way, a polarimetrically compensated telescope design that eliminates the complex temporal variation and wavelength dependence of the telescope Mueller matrix, and an instrument suite containing several (etalon-based) tunable imaging spectropolarimeters and several integral field unit spectropolarimeters. This publication summarises some fundamental science questions that can be addressed with the telescope, together with a complete description of its major subsystems