Libro 1 : la casa vacia(da)

Este es un trabajo que habla de la imposibilidad de pertenecer; a un lugar, a un hogar, a algo estable. habla de la imposibilidad de estar. De poder apropiarse del espacio por largo tiempo y formar raíces en él. Mi vida se ha basado en cargar mis objetos de un lado a otro y deshacerme de muchos otros. De empacar para luego desempacar y de esperar para el próximo turno de empacar una vez más. Es un círculo que nunca se ha roto. Los objetos que dejo atrás no definen un solo lugar. Las raíces que he intentado hacer crecer en cada “hogar” por el que he pasado, he tenido que recogerlas a la fuerza y llevarlas conmigo. Ya no intentan amarrarme al piso; me ayudan a cargar mis recuerdos y llevarlos conmigo.This is a work that speaks of the impossibtlity of belonging; to a place, to a home, to something stable. It speaks of the impossibility of being, of being able to belong in the space for long time and to form roots in it. My life has been based on carrying my objects from one side to another and release many others. to pack and then to unpack and wait for the next turn to pack once again. It is a circle that has ne ver been broken. The, objects I leave back do not define my past, but help me to rebuild my present. I do not belong to a single place. The roots i have tried to grow in every "home" I have passed by, I had to collect them to strength and take them with me. They do not try to tie me to the floor, they help me to load my memories and take them with me.Maestro (a) en Artes VisualesPregrad

Facebook: Methodological strategic to enhance listening in english in 4th grade at Antonio Nariño high schol night shift

La población estimada para la ejecución y análisis de enfoque de este trabajo de investigación fue Los estudiantes de cuarto grado en la Escuela Secundaria Antonio Nariño en turno de noche, que se encuentra en el número 10 resort Engativá. Hay veinticinco miembros que componen la población total, aunque los miembros quince fueron tomadas con el fin de estudiar una muestra aleatoria, para mejorar las habilidades de escuchar en los estudiantes a través de tareas comunicativas utilizando videos, audios y podcasts utilizando la escucha activa y Facebook.The population considered for implementation and analysis approach of this research work was Fourth Grade students at Antonio Nariño High School at night shift, located in the resort number 10 Engativá. There are twenty five members that compose the complete population, although fifteen members were taken in order to study one random sample, to improve listening skills in students through communicative tasks using videos, audios and podcasts using active listening and Facebook

Cavitation bubble measurement in tribological contacts using digital holographic microscopy

The use of advanced measurement techniques such as the digital holography method described in this paper improves the understanding of the cavitation phenomenon in tribological contacts such as the sliding contact of the piston ring–cylinder liner conjunction. The paper describes the use of digital holography measurement technique to measure cavitation bubble formation and thickness. The position of observed lubricant film rupture preceding the cavitation region is compared with some commonly predicted boundary often used with Reynolds equation. The experimental results indicate that the Reynolds and Elrod boundary conditions are the most suitable for the investigated sliding contact conditions

Cavitation bubble measurement in tribological contacts using digital holographic microscopy

The use of advanced measurement techniques such as the digital holography method described in this paper improves the understanding of the cavitation phenomenon in tribological contacts such as the sliding contact of the piston ring–cylinder liner conjunction. The paper describes the use of digital holography measurement technique to measure cavitation bubble formation and thickness. The position of observed lubricant film rupture preceding the cavitation region is compared with some commonly predicted boundary often used with Reynolds equation. The experimental results indicate that the Reynolds and Elrod boundary conditions are the most suitable for the investigated sliding contact conditions

Babesia Bovis Ligand-Receptor Interaction: AMA-1 Contains Small Regions Governing Bovine Erythrocyte Binding

Apical membrane antigen 1 is a microneme protein which plays an indispensable role during Apicomplexa parasite invasion. The detailed mechanism of AMA-1 molecular interaction with its receptor on bovine erythrocytes has not been completely defined in Babesia bovis. This study was focused on identifying the minimum B. bovis AMA-1-derived regions governing specific and high-affinity binding to its target cells. Different approaches were used for detecting ama-1 locus genetic variability and natural selection signatures. The binding properties of twelve highly conserved 20-residue-long peptides were evaluated using a sensitive and specific binding assay based on radio-iodination. B. bovis AMA-1 ectodomain structure was modelled and refined using molecular modelling software. NetMHCIIpan software was used for calculating B-and T-cell epitopes. The B. bovis ama-1 gene had regions under functional constraint, having the highest negative selective pressure intensity in the Domain I encoding region. Interestingly, B. bovis AMA-1-DI (100YMQKFDIPRNHGSGIYVDLG119 and120GYESVGSKSYRMPVGKCPVV139 ) and DII (302CPMHPVRDAIFGKWSGGSCV321 )-derived peptides had high specificity interaction with erythrocytes and bound to a chymotrypsin and neuraminidase-treatment sensitive receptor. DI-derived peptides appear to be exposed on the protein’s surface and contain predicted B-and T-cell epitopes. These findings provide data (for the first-time) concerning B. bovis AMA-1 functional subunits which are important for establishing receptor-ligand interactions which could be used in synthetic vaccine development

Evaluation of biomechanical factors of definitive prosthetic abutmensts of dental implant systems

Resumen Antecedentes: Múltiples factores como diseño, tipo de material, módulo elástico y deformación relativa de los implantes, repercuten en el desgaste de las superficies (implante-hueso e implante-pilar definitivo) por el tiempo de uso, lo que genera la aparición de enfermedades peri-implantares. Objetivo: En este trabajo se evaluaron in vitro, las características biomecánicas módulo y limite elásticos, así como la deformación relativa en 11 modelos de implantes, de 7 casas comerciales: Zimmer®, Straumann®, Ankylos®, Tiologic®, BioHorizons®, Mis® e Imeti®. Métodos: Los modelos fueron acoplados a un soporte de resina epóxica en forma de T y se le aplico un gradiente de carga oblicua hasta 100 Nw. Resultados: A través de análisis de regresión lineal y no paramétricas (test de Mann-Whitney), se observó que los modelos Zimmer®, Zimmer 3i® y Mis C1® presentaban mayor módulo elástico (169, 144 y 144 Nw/mm, respectivamente), siendo menor para el modelo Imeti® (102 Nw/mm). Se obtuvo una menor mediana en el modelo Zimmer® (0,10), así como el menor rango del índice de deformación relativa al compararse con los otros modelos, seguido de BioHorizons Tissue level® (0,12), Mis C1® (0,12) y Mis Seven® (0,11). Conclusiones: Cambios puntuales como un mayor modulo elástico y menor deformación relativa se encontraron para ambos modelos de la casa comercial Zimmer® y Mis C1®, contrario a los encontrados en los modelos Mis Seven® e Imeti®, cuyos valores para estos últimos, fueron menores en el módulo elástico, en conjunto con una mayor elongación elástica, mayor índice y rango de deformación relativa.Abstract Background: Multiple factors such as design, type of material, elastic modulus, and relative deformation of the implants, affect the wear of the surfaces (implant-bone and implant-abutment) due to the time of use, leading to the appearance of peri-implant diseases. Purpose: In this work, biomechanical characteristics were evaluated in vitro: elastic modulus and limit, as well as relative deformation in 11 implant models, from 7 commercial houses: Zimmer®, Straumann®, Ankylos®, Tiologic®, BioHorizons®, Mis® and Imeti ®. Methods: The models were attached to a T-shaped epoxy resin support and an oblique load gradient was applied up to 100 Nw. Results: Through linear and non-parametric regression analysis (Mann-Whitney test), it was observed that the Zimmer®, Zimmer 3i®, and Mis C1® models had a higher elastic modulus (169, 144, and 144 Nw/mm, respectively), being lower for the Imeti® model (102 Nw/mm). A lower median was obtained in the Zimmer® model (0.10), as well as the lowest relative strain index range when compared to the other models, followed by BioHorizons Tissue level® (0.12), Mis C1® (0.12), and Mis Seven® (0.11). Conclusions: Punctual changes such as a higher elastic modulus and lower relative deformation were found for both models from the commercial house Zimmer® and Mis C1®, contrary to those found in the Mis Seven® and Imeti® models, whose values for the latter, were lower in the elastic modulus, together with a higher elastic elongation, higher index, and range of relative strain.Especialista en PeriodonciaEspecializació

EL RECUERDO DE LA MARCA EN LA EXPOSICIÓN DE IMÁGENES AFECTIVAS

In graphic communication, persuasion is through the values of a brand concept, which involves the combination of a sharp image with the stimulation of human emotions. The images themselves generate an emotion.The model bioinformational International Affective Picture System (IAPS), analyzed, normalized and standardized emotional over 1200 images on a psychological context. However, in marketing these images have not been studied, which are the most suitable images to be associated with the product and so choose suitable for the product is perceived by the target market.This research seeks to measure the memory of the brand exposure to affective pictures as a slide show presented in the IAPS (International Affective Picture System), through an experimental study based on the model of Peter Lang bioinformational where 60 images were analyzed by the International Affective Picture System (IAPs) highly emotional load: 20 positive and 20 negative images, additionally, 20 images were analyzed emotional uncharged or neutral, to each of which are inserted and positioned a recognized brand on the market, taken from the list of BrandZ top 100 of Millward Brown, 2010 to be evaluated by 300 students of the 5th semester BA from the School of Accounting and Administration of the National University of Mexico, using a sheet assessment to write down the ten images that recalled and what was the brand image showing.With the result we obtained data that may be useful in the field of marketing for the development of graphic communication strategies that will allow entrepreneurs have a greater impact on attention, recall and purchase in the design of visual communication campaigns

Storylines for practice: a visual storytelling approach to strengthen the science‑practice interface

A growing number of scientifc publications is available to promote sustainable river management. However, these publications target researchers rather than water management professionals who are responsible for the implementation of management practices. To bridge this science-to-practice gap, we conceptualize and propose a series of steps to prepare efective storylines targeted at a practitioner audience. We developed this approach within a research program that supports integrated and collaborative river management. We prepared three storylines, each based on one scientifc publication. The storylines combined text and interactive visuals using the ESRI StoryMaps tool to make them available online. Via focus groups with 44 participants from research and practice, we evaluated the perceived usefulness of and engagement with the content and design. We collected feedback from participants using a survey as well as via audio and screen recordings. Our fndings show that we should narrow down the audience of the storylines by tailoring them to the needs of project managers rather than specialized advisors. Therefore, the content should ofer more than a visual summary of the research by showing examples of the management application. A more engaging sequence with a clear protagonist is further required to better relate to the problem and the potential application. Although visuals and interactive elements were considered attractive, a multi-disciplinary editorial team is necessary to better complement the visuals’ design to the text. The level of detail of participants’ feedback shows that involving project managers to co-create storylines can be an important step for improvement.Peer reviewe

Estruturas organizacionais e adaptação às condições variáveis do entorno: desafios e implicações

Introduction: This article, prepared in 2017 at the Universidad Distrital Francisco José de Caldas, identifies some of the characteristics, advantages, and limitations of organizational structures that seek to increase the ability to adapt to changing environmental conditions. Methodology: a) it is argued that business organizations are information processing systems; b) it is shown that organizational structures can be understood as information circulating networks; c) the research literature published in the 2010-2016 period is reviewed; it was methodically and exhaustively analyzed for trends, advances, methodology, future research, results, and conclusions in the twenty main journals of the Business, Management and Accounting category of Scimago; and d) research challenges and problems not yet overcome are set out. Results: The characteristics, advantages, and limitations of organizational structures other than hierarchical control are identified. Future research projects in the design of organizational structures that increase the ability of the system to adapt to changing environmental conditions are planned. Conclusions: The ability to adapt linked to the processing of high volumes of information is a challenge faced daily by organizations which could be satisfactorily addressed by implementing flexible structures. Introducción: en este artículo, realizado en el 2017 en la Universidad Distrital Francisco José de Caldas, se identifican algunas de las características, ventajas y limitaciones de las estructuras organizacionales que buscan incrementar la capacidad de adaptación a las condiciones cambiantes del entorno. Metodología: a) se argumenta que las organizaciones empresariales son sistemas de procesamiento de información; b) se muestra que las estructuras organizacionales pueden ser comprendidas como redes por las que circula la información; c) se realiza la revisión de estado de literatura de investigaciones publicadas en el periodo 2016-2010; de estas se realiza un análisis metódico y exhaustivo de las tendencias, avances, metodología, investigaciones futuras, resultados y conclusiones en los veinte principales journals de la categoría Business, Management and Accounting de Scimago, y d) se plantean retos de la investigación y problemas aún no superados. Resultados: se identifican las características, ventajas y limitaciones de las estructuras organizacionales alternativas al control jerárquico. Se proyectan futuros trabajos de investigación en el diseño de estructuras organizacionales que incrementen la capacidad de adaptación del sistema a las condiciones cambiantes del entorno. Conclusiones: la capacidad de adaptación ligada al procesamiento de altos volúmenes de información es un reto al que se enfrentan las organizaciones con mayor dificultad diariamente, y que podría afrontar de una forma satisfactoria implementando estructuras flexibles.Introdução: neste artigo, realizado em 2017, na Universidade Distrital Francisco José de Caldas, são identificadas algumas características, vantagens e limitações das estruturas organizacionais que buscam aumentar a capacidade de adaptação às condições variáveis do entorno. Metodologia: a) argumenta-se que as organizações empresariais são sistemas de processamento de informação; b) mostra-se que as estruturas organizacionais podem ser compreendidas como redes pelas quais a informação circula; c) é realizada a revisão de estado da literatura de pesquisas publicadas no período de 2010 a 2016; a partir deles, é realizada uma análise metódica e exaustiva das tendências, avanços, metodologia, futuras pesquisas, resultados e conclusões nas vinte principais publicações da categoria Negócios, Administração e Contabilidade de Scimago; d) novos desafios da pesquisa e problemas ainda não superados são apresentados. Resultados: as características, vantagens e limitações das estruturas organizacionais alternativas ao controle hierárquico são identificadas. Futuros trabalhos de pesquisa na criação de estruturas organizacionais que aumentem a capacidade de adaptação do sistema às condições variáveis do entorno. Conclusões: a capacidade de adaptação ligada ao processamento de altos volumes de informação é um desafio que as organizações enfrentam com mais dificuldade diariamente e que poderiam afrontar de forma satisfatória implementando estruturas flexíveis

Basal procalcitonin, C-reactive protein, interleukin-6, and presepsin for prediction of mortality in critically ill septic patients: a systematic review and meta-analysis

Biomarkers; Mortality; SepsisBiomarcadores; Mortalidad; SepsisBiomarcadors; Mortalitat; SèpsiaBackground Numerous biomarkers have been proposed for diagnosis, therapeutic, and prognosis in sepsis. Previous evaluations of the value of biomarkers for predicting mortality due to this life-threatening condition fail to address the complexity of this condition and the risk of bias associated with prognostic studies. We evaluate the predictive performance of four of these biomarkers in the prognosis of mortality through a methodologically sound evaluation. Methods We conducted a systematic review a systematic review and meta-analysis to determine, in critically ill adults with sepsis, whether procalcitonin (PCT), C-reactive protein (CRP), interleukin-6 (IL-6), and presepsin (sCD14) are independent prognostic factors for mortality. We searched MEDLINE, EMBASE, and the Cochrane Central Register of Controlled Trials up to March 2023. Only Phase-2 confirmatory prognostic factor studies among critically ill septic adults were included. Random effects meta-analyses pooled the prognostic association estimates. Results We included 60 studies (15,681 patients) with 99 biomarker assessments. Quality of the statistical analysis and reporting domains using the QUIPS tool showed high risk of bias in > 60% assessments. The biomarker measurement as a continuous variable in models adjusted by key covariates (age and severity score) for predicting mortality at 28–30 days showed a null or near to null association for basal PCT (pooled OR = 0.99, 95% CI = 0.99–1.003), CRP (OR = 1.01, 95% CI = 0.87 to 1.17), and IL-6 (OR = 1.02, 95% CI = 1.01–1.03) and sCD14 (pooled HR = 1.003, 95% CI = 1.000 to 1.006). Additional meta-analyses accounting for other prognostic covariates had similarly null findings. Conclusion Baseline, isolated measurement of PCT, CRP, IL-6, and sCD14 has not been shown to help predict mortality in critically ill patients with sepsis. The role of these biomarkers should be evaluated in new studies where the patient selection would be standardized and the measurement of biomarker results.Instituto de Salud Carlos III, Spain and European Union (“Fondo Europeo de Desarrollo Regional, Una manera de hacer Europa”), grant number [PI 19/0048]