Diplomado De Profundización CISCO (Diseño E Implementación De Soluciones Integradas LAN / WAN).

La necesidad de aprender es constante en el área de sistemas de cómputo y es necesario para un ingeniero tener conocimientos en redes, es por esto que es requerido tener presente los protocolos que se manejan y saber el procedimiento a seguir en caso de determinados errores. Tener presente los comandos requeridos para dar una seguridad a los routers y switch se convierte en algo indispensable para el correcto manejo de una red y dar cumplimiento a todos los principios de confidencialidad y disponibilidad de la información. Dependiendo también de las necesidades de la red se estipula el direccionamiento de la red y de los equipos dados por el número de hosts, realizando la programación de los DNS y puertas de enlace, convirtiendo en segura una red dada, todo esto a través de servicios y protocolos, así como la encriptación de ingreso y de visualización de los mismos con la posibilidad de guardar en la NVRAM de los dispositivos. Los servicios de DHCP dependiendo de la versión de la configuración IP empleada en la configuración inicial, permite también dar control a los computadores conectados a la red.The need to learn is constant in the area of computer systems and it is necessary for an engineer to have knowledge in networks, which is why it is required to keep in mind the protocols that are handled and know the procedure to follow in case of certain errors. Keeping in mind the commands required to provide security to the routers and switches becomes indispensable for the correct management of a network and to comply with all the principles of confidentiality and availability of information. Depending on the needs of the network, the address of the network and the equipment given by the number of hosts is stipulated, programming the DNS and gateways, making a given network secure, all through services and protocols, as well as the encryption of entry and visualization of the same with the possibility of saving in the NVRAM of the devices. DHCP services, depending on the version of the IP configuration used in the initial configuration, also allows control of the computers connected to the network

El Código de Ética profesional del Contador Público en Perú y México.

Ethics in organizations implies a study of different variables, those linked to the behavior of the human being, as well as those related to the environment in which it operates. The research has a descriptive character and aims to develop a comparative study of the legal and accounting standards linked to the Code of Professional Ethics of the public accountant in Peru and Mexico to understand the likely incidence with corporate social responsibility. The study addresses the analysis of the legal and union regulations of the Public Accountant, with a general review of the Code issued by IFAC. The work is supported by a review of the relevant literature, based on concepts in which the application of ethical values ​​is perceived by legal norms and accounting standards, linking their effects with the social responsibility that companies have as a result of the development of their operationsLa Ética en las organizaciones implica un estudio de distintas variables, aquellas vinculadas al comportamiento del ser humano, así como las vinculadas al entorno en que este se desenvuelve. La investigación tiene un carácter descriptivo y tiene como objetivo desarrollar un estudio comparativo de las normas legales y contables vinculadas al Código de Ética profesional del contador público en Perú y México para comprender la probable incidencia con la responsabilidad social empresarial. El estudio aborda el análisis de la normatividad legal y gremial del Contador Público, con una revisión general del Código emitido por International Federation of Accountants (IFAC). El trabajo se respalda en una revisión de la literatura relevante, sobre la base de conceptos en que se percibe la aplicación de los valores éticos por normas legales y normas contables, vinculando sus efectos con la responsabilidad social que tienen las empresas producto del desarrollo de sus operaciones

ESTUDIO COMPARATIVO DEL DESARROLLO DE LA ALFABETIZACIÓN EN POBLACIONES DE EDUCACIÓN PRIMARIA Y PREESCOLAR

A comparative study about early literacy of 33 children from elementary school and 27 children from kindergarden was carried out, applying the Instrumento de Observación de los Logros de la Lectoescritura Inicial (Escamilla, Andrade, Basurto y Ruíz, 1996). The purpose of the present work was to characterize the level of early literacy considering the knowledge of the language written in both groups. The groups were evaluated in the first two weeks of the month of September and of October of the school cycle 2011-2012. In the results it was observed that they were only significant differences in the identification of letters. The results are discussed in relation to the concept of early literacy

EGF-Coupled Gold Nanoparticles Increase the Expression of CNPase and the Myelin-Associated Proteins MAG, MOG, and MBP in the Septal Nucleus Demyelinated by Cuprizone

ARTICULO DE ACCESO ABIERTOCurrent pharmacological therapies against demyelinating diseases are not quite satisfactory to promote remyelination. Epidermal growth factor (EGF) can expand the population of oligodendrocyte precursor cells (OPCs) that may help with the remyelination process, but its delivery into the injured tissue is still a biomedical challenge. Gold nanoparticles (GNPs) may be a useful tool for drug delivery into the brain. To evaluate remyelination in the septal nucleus, we administered intracerebral GNPs coupled with EGF (EGF–GNPs). C57BL6/J mice were demyelinated with 0.4% cuprizone (CPZ) and divided into several groups: Sham, Ctrl, GNPs, EGF, and EGF–GNPs. We evaluated the remyelination process at two time-points: 2 weeks and 3 weeks post-injection (WPI) of each treatment. We used the rotarod for evaluating motor coordination. Then, we did a Western blot analysis myelin-associated proteins: CNPase, MAG, MOG, and MBP. EGF–GNPs increase the expression of CNPase, MAG, and MOG at 2 WPI. At 3 WPI, we found that the EGF–GNPs treatment improves motor coordination and increases MAG, MOG, and MBP. EGF–GNPs enhance the expression of myelin-associated proteins and improve the motor coordination in mice. Thus, EGF-associated GNPs may be a promising pharmacological vehicle for delivering long-lasting drugs into the brain.S/

La imagen y la narrativa como herramientas para el abordaje psicosocial en escenarios de violencia. Florencia, Caquetá.

El siguiente documento permite otorgar una mirada reflexiva y analítica desde lo psicosocial a la realidad social que viven en Colombia las víctimas de conflicto armado. Así mismo, se comprende que la atención psicosocial para las victimas buscar ser una herramienta de rehabilitación y un puente entre la victimización y la emancipación, donde se pretenden mitigar los daños y generar espacios de empoderamiento social. De esta forma, el presente trabajo muestra la valoración eventos psicosociales traumáticos desde una perspectiva psicológica utilizando el análisis de narrativas. Las narrativas se convierten en una herramienta psicológica para la atención psicosocial en víctimas de conflicto armado, ya que estas permiten a las personas construir una nueva historia y un nuevo proyecto de vida. En el ejercicio realizado en este trabajo se analizaron cinco relatos de violencia ocurridos en Colombia desde la perspectiva narrativa, los relatos fueron los siguientes Modesto Pacayá, Camilo, Ana Ligia, Alfredo Campo y Carlos Arturo. Después de hacer el análisis se presentan unas preguntas de tipo circulares, estratégicas y reflexivas. Finalmente, se propone una estrategia psicosocial para abordar y atender el caso Carlos Arturo. Por último, se realiza otro análisis de narrativa como se muestra en el análisis del caso las comunidades de Cacarica, y también donde se hace la valoración de estrategias de acompañamiento psicosocial que se requieren. De esta forma se concreta el contenido de este documento como muestra del producto obtenido en el paso cuatro de abordaje de contextos del diplomado de profundización.The following document allows to give a reflexive and analytical look from the psychosocial to the social reality that victims of armed conflict live in Colombia. Likewise, it is understood that psychosocial attention for victims seeks to be a tool of rehabilitation and a bridge between victimization and emancipation, where they seek to mitigate the damage and generate spaces for social empowerment. In this way, the present work shows the assessment of traumatic psychosocial events from a psychological perspective using narrative analysis. The narratives become a psychological tool for psychosocial care in victims of armed conflict, since these allow people to build a new story and a new life project. In the exercise carried out in this work, five stories of violence in Colombia were analyzed from the narrative perspective, the stories were the following Modesto Pacayá, Camilo, Ana Ligia, Alfredo Campo and Carlos Arturo. After doing the analysis, some circular, strategic and reflexive questions are presented. Finally, a psychosocial strategy is proposed to address and address the Carlos Arturo case. Finally, another narrative analysis is performed as shown in the case analysis of the communities of Cacarica, and also where the assessment of psychosocial support strategies is required. In this way the content of this document is specified as a sample of the product obtained in step four of tackling the contexts of the deepening diploma

Nature and Distribution of Stable Subsurface Oxygen in Copper Electrodes During Electrochemical CO₂ Reduction

Oxide-derived copper (OD-Cu) electrodes exhibit higher activity than pristine copper during the carbon dioxide reduction reaction (CO₂RR) and higher selectivity toward ethylene. The presence of residual subsurface oxygen in OD-Cu has been proposed to be responsible for such improvements, although its stability under the reductive CO₂RR conditions remains unclear. This work sheds light on the nature and stability of subsurface oxygen. Our spectroscopic results show that oxygen is primarily concentrated in an amorphous 1–2 nm thick layer within the Cu subsurface, confirming that subsurface oxygen is stable during CO₂RR for up to 1 h at −1.15 V vs RHE. Besides, it is associated with a high density of defects in the OD-Cu structure. We propose that both low coordination of the amorphous OD-Cu surface and the presence of subsurface oxygen that withdraws charge from the copper sp- and d-bands might selectively enhance the binding energy of CO

Boletín NUESTRA AMÉRICA XXI - Desafíos y alternativas, num.43, Marzo 2020

Una excelente iniciativa del Grupo de Trabajo Crisis y economía mundial, coordinado por María Josefina Morales, Julio Gambina y Gabriela Roffinelli

The progressive elevation of alpha fetoprotein for the diagnosis of hepatocellular carcinoma in patients with liver cirrhosis

BACKGROUND: Hepatocellular carcinoma is the most common cause of primary liver neoplasms and is one of the main causes of death in patients with liver cirrhosis. High Alpha fetoprotein serum levels have been found in 60–70% of patients with Hepatocellular carcinoma; nevertheless, there are other causes that increase this protein. Alpha fetoprotein levels ≥200 and 400 ng/mL in patients with an identifiable liver mass by imaging techniques are diagnostic of hepatocellular carcinoma with high specificity. METHODS: We analysed the sensitivity and specificity of the progressive increase of the levels of alpha fetoprotein for the detection of hepatocellular carcinoma in patients with liver cirrhosis. Seventy-four patients with cirrhosis without hepatocellular carcinoma and 193 with hepatic lesions diagnosed by biopsy and shown by image scans were included. Sensitivity and specificity of transversal determination of alpha fetoprotein ≥ 200 and 400 ng/mL and monthly progressive elevation of alpha fetoprotein were analysed. Areas under the ROC curves were compared. Positive and negative predictive values adjusted to a 5 and 10% prevalence were calculated. RESULTS: For an elevation of alpha fetoprotein ≥ 200 and 400 ng/mL the specificity is of 100% in both cases, with a sensitivity of 36.3 and 20.2%, respectively. For an alpha fetoprotein elevation rate ≥7 ng/mL/month, sensitivity was of 71.4% and specificity of 100%. The area under the ROC curve of the progressive elevation was significantly greater than that of the transversal determination of alpha fetoprotein. The positive and negative predictive values modified to a 10% prevalence are of: 98.8% and 96.92%, respectively; while for a prevalence of 5% they were of 97.4% and 98.52%, respectively. CONCLUSION: The progressive elevation of alpha fetoprotein ≥7 ng/mL/month in patients with liver cirrhosis is useful for the diagnosis of hepatocellular carcinoma in patients that do not reach αFP levels ≥200 ng/mL. Prospective studies are required to confirm this observation