Anatomical Mirroring: Real-time User-specific Anatomy in Motion Using a Commodity Depth Camera

International audienceThis paper presents a mirror-like augmented reality (AR) system to display the internal anatomy of a user. Using a single Microsoft V2.0 Kinect, we animate in real-time a user-specific internal anatomy according to the user’s motion and we superimpose it onto the user’s color map. The user can visualize his anatomy moving as if he was able to look inside his own body in real-time. A new calibration procedure to set up and attach a user-specific anatomy to the Kinect body tracking skeleton is introduced. At calibration time, the bone lengths are estimated using a set of poses. By using Kinect data as input, the practical limitation of skin correspondance in prior work is overcome. The generic 3D anatomical model is attached to the internal anatomy registration skeleton, and warped on the depth image using a novel elastic deformer, subject to a closest-point registration force and anatomical constraints. The noise in Kinect outputs precludes any realistic human display. Therefore, a novel filter to reconstruct plausible motions based onfixed length bones as well as realistic angular degrees of freedom (DOFs) and limits is introduced to enforce anatomical plausibility. Anatomical constraints applied to the Kinect body tracking skeleton joints are used to maximize the physical plausibility of the anatomy motion, while minimizing the distance to the raw data. At run-time,a simulation loop is used to attract the bones towards the raw data, and skinning shaders efficiently drag the resulting anatomy to the user’s tracked motion.Our user-specific internal anatomy model is validated by comparing the skeleton with segmented MRI images. A user study is established to evaluate the believability of the animated anatomy

Early career ocean professionals declaration on Ocean Negative Carbon Emissions for our ocean and future

This paper highlights the urgent need to accelerate research and action on ocean carbon sinks through human intervention, known as Global Ocean Negative Carbon Emissions (Global-ONCE) Programme, as a vital strategy in global efforts to mitigate climate change. Achieving 'net zero' by 2050 cannot rely on emission reductions alone, emphasising the necessity of complementary approaches. Global-ONCE's mission extends beyond scientific exploration. It embodies a profound commitment to protecting and restoring blue carbon ecosystems, as well as implementing ocean-based solutions that are sustainable, equitable, and inclusive. Early Career Ocean Professionals (ECOPs) are at the heart of these efforts, and their innovative approaches, technical expertise, and passion make them indispensable leaders in advancing ONCE initiatives. ECOPs bridge the gap between science and society, playing a relevant role in integrating cutting-edge research, technological advancements, and community-driven action to address climate threats. By bringing together diverse perspectives and leveraging their interdisciplinary expertise, ECOPs ensure ONCE strategies are grounded in scientific rigour and practical feasibility. Through advocacy, education, and collaboration, ECOPs not only spearhead research and innovation but also inspire collective action to safeguard our oceans. This paper amplifies the critical role of ECOPs as agents of change and calls for a unified global commitment to harness the ocean's potential for a climate-resilient future

Characterization of student anthropometric profile of Nueva Granada Military University Headquarters 100th Street and Campus Cajicá using Virtual Media

La antropometría se conoce como la ciencia que estudia las dimensiones del cuerpo humano, esta medidas son adquiridas mediante el uso de dispositivos y técnicas especiales cuyos resultados son analizados por medio de estadística. La antropometría juega un papel importante en el proceso de diseño industrial en áreas tales como la textil, ergonomía y biomecánica, donde los datos estadísticos sobre las medidas de permiten optimizar el diseño del producto. Recientemente, el procesamiento de imágenes y los avances en hardware permiten el desarrollo de aplicaciones que dejan a un usuario obtener una vista previa de vestuario, disfraces, juegos o juegos publicitarios e incluso diferentes tipos de ambientes de acuerdo a las medidas de los usuarios. Este proyecto propone el desarrollo de una herramienta complementaria para la adquisición de los datos antropométricos de los usuarios para la caracterización de los estudiantes en la Universidad Militar Nueva Granada en Colombia, América del Sur mediante el uso de seguimiento del esqueleto del Kinect de Microsoft para desarrollar y evaluar el diseño de espacios de trabajo en diversas áreas, tales como laboratorios.Anthropometry is known as the science that studies the human body dimensions, this measurements are acquire using special devices and techniques whose results are analyzed through statistics. Anthropometry plays an important role within the industrial design process in areas such as clothing, ergonomics, and biomechanics, where statistical data about body medians allow optimizing product design. Recently, image processing and hardware advances are allowing the development of applications that allow an user to preview wardrobe, costumes, games or advergames and even different types of environments according to the user measurements. This project proposes the development of a complimentary tool for acquiring user anthropometric data for characterizing users in the Mil. Nueva Granada University in Colombia, South America using Microsoft’s Kinect skeletal tracking for developing and assess the design of workspaces in several areas such as laboratories.Pregrad

Análisis del comportamiento de los contratos forward en Colombia durante el Periodo 2018 - 2019

The Colombian capital market has become an increasingly deep, dynamic, diversified and inclusive scenario, whose importance for economic development is increasingly notable; Currently, there are a considerable number of securities and financial instruments in Colombia that seek to satisfy the needs of investors and offer companies efficient and innovative alternatives for obtaining capital. One of these instruments are the Forwards contracts that arise in response to the needs to cover the risks associated with the volatility of the exchange rate and reduce vulnerability when facing the international market; And taking into account that society attends a market that is in constant dynamism and interdependence, an increasing number of companies operate in the international arena, which is why this type of operation has become one of the most desired mechanisms. by economic agents in Colombia and have shown enormous evolution in recent years. Taking these considerations into account, this monographic work analyzes the behavior of the Forward contract market in Colombia during the period 2018 - 2019 based on the purchases and sales made, in order to identify trends, behaviors, weaknesses, strengths, as well as your growth opportunities. To comply with the proposal, three chapters were developed, the first of them describes the theoretical and conceptual characteristics of the Forward contracts, typology, participants and their origin in the Colombian market; The second chapter shows the behavior of said contracts during the periods indicated, highlighting the volumes traded, the sectors with the highest participation, the periods of greatest adoption and the number of operations; Finally, a comparative analysis of the evolution of the market is carried out during the period between 2018 and 2019.Resumen..................................................................................61 Introducción....................................................................................92 Objetivos ......................................................................................... 122.1 Objetivo general .......................................................................... 122.2 Objetivos especificos.............................................................. 12Capitulo I ................................................................................................... 133 Características Conceptuales de los Contratos Forwards ................................. 133.1 Mercado de Derivados ................................................................ 133.2 Funciones de los Derivados ......................................... 143.3 Contrato Forward .............................................................................. 153.3.1 Origen de los Contratos Forward en Colombia ......................................... 173.3.2 Participantes ............................................................................... 203.3.3 Tipos de Contrato Forward ................................................. 21Capitulo II ................................................................................................. 234 Comportamiento de los Contratos Forward en Colombia durante los Periodos 2018 y 2019 ................................................................................................ 234.1 Mercado de Forward 2018 .................................................. 244.2 Mercado de Forward 2019 ...................................................... 29Capítulo III ............................................................................................... 345 Análisis Comparativo del Mercado Forwards 2018-2019 ............................... 346 Conclusiones ..................................................................................... 427 Bibliografía .......................................................................................... 44El mercado de capitales colombiano se ha convertido en un escenario cada vez más profundo, dinámico, diversificado e inclusivo, cuya importancia para el desarrollo económico es cada vez más notable; en la actualidad existen en Colombia un considerable número de valores e instrumentos financieros que pretenden satisfacer las necesidades de los inversionistas y ofrecer a las empresas alternativas eficientes e innovadoras para la obtención de capital. Uno de estos instrumentos son los contratos Forwards que surgen como respuesta a las necesidades de cubrir los riesgos asociados a la volatilidad de la tasa de cambio y disminuir la vulnerabilidad al enfrentarse al mercado internacional; y teniendo en cuenta que la sociedad asiste a un mercado que se encuentra en constante dinamismo e interdependencia, un número cada vez mayor de empresas operan en el ámbito internacional, por lo que este tipo de operaciones se han convertido en uno de los mecanismos más apetecidos por los agentes económicos en Colombia y han mostrado una enorme evolución durante los últimos años. Atendiendo estas consideraciones, en el presente trabajo monográfico se analiza el comportamiento del mercado de contratos Forward en Colombia durante el periodo 2018 - 2019 en función de las compras y ventas realizadas, con el propósito de identificar las tendencias, comportamientos, debilidades, fortalezas, así como sus oportunidades de crecimiento. Para cumplir con lo propuesto, se desarrollaron tres capítulos, el primero de ellos describe las características teóricas y conceptuales de los contratos Forward, tipología, participantes y su origen en el mercado colombiano; en el segundo capítulo se muestra el comportamiento de dichos contratos durante los periodos señalados, destacando los volúmenes transados, los sectores de mayor participación, los plazos de mayor adopción y el número de operaciones; y para finalizar se realiza un análisis comparativo de la evolución del mercado durante el periodo comprendido entre 2018 y 2019.PregradoAdministrador(a) en Finanzas y Negocios InternacionalesMonografía

Biocide Activity of TiO<sub>2</sub> Nanostructured Films

The ability of nanostructured TiO2 in anatase phase to eliminate Escherichia coli (E. coli) by UV light irradiation was tested using titania films supported on glass substrates. The films were obtained by electrophoretic deposition of titania sol on sputtered Ti Corning glass substrates. Experimental procedure used to obtain these films and their characterizations are discussed in this paper. Nanostructure nature of the films was analyzed using scanning electron microscopy and atomic force microscopy. Optic microscopy was used to study the photocatalytic activity of films and their interaction with E. coli bacteria, in order to measure the reduction in E. coli colonies. The structure of anatase TiO2 was determined using grazing incidence X-ray diffraction.</jats:p

EVALUACIÓN DE TIPOS DE SEMILLA Y ÉPOCA DE CORTE PARA LA SIEMBRA DE BATATA, Ipomoea batatas (L.) Lam, EN LA REGIÓN CARIBE DE COLOMBIA

El objetivo fue evaluar diferentes segmentos de rama como fuente de semilla vegetativa para siembra y la época apropiada para el corte de éstos. Se evaluaron 12 tratamientos (segmento apical, preapical, tercera y cuarta sección), con tres épocas de corte (60, 90 y 120 días después de siembra), en diseño de bloques completos al azar, en parcelas divididas, con tres repeticiones. El prendimiento de la semilla fue similar en todos los tratamientos, con promedio general de 98,73%. Los tipos de segmentos afectan significativamente el rendimiento, siendo mejores el apical (11.643,96 kg ha -1 ) y preapical (11.101,47 kg ha -1 ), que los otros. El menor rendimiento fue la cuarta sección (8.971,07 kg ha -1 ). La época de corte de secciones no afectó los rendimientos. Sin embargo, época de corte 60 días y la sección apical son los de mayor rendimiento. Económicamente el mejor tratamiento fue la combinación sección apical con corte de 60 días.</jats:p