Débora Chan

ORCID: 0000-0003-0125-7345
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About
Contact & Profiles
Research Areas
  • Image and Signal Denoising Methods
  • Educational Innovations and Technology
  • Synthetic Aperture Radar (SAR) Applications and Techniques
  • Health and Lifestyle Studies
  • Digital literacy in education
  • Image Processing Techniques and Applications
  • Lower Extremity Biomechanics and Pathologies
  • Developmental and Educational Neuropsychology
  • E-Learning and Knowledge Management
  • Target Tracking and Data Fusion in Sensor Networks
  • Diabetes, Cardiovascular Risks, and Lipoproteins
  • Diabetic Foot Ulcer Assessment and Management
  • Advanced Image Fusion Techniques
  • Medication Adherence and Compliance
  • Youth, Drugs, and Violence
  • Organ Transplantation Techniques and Outcomes
  • Diet and metabolism studies
  • Advanced Image and Video Retrieval Techniques
  • Diet, Metabolism, and Disease
  • Diverse Applied Research Studies
  • Liver Disease Diagnosis and Treatment
  • Foot and Ankle Surgery
  • Advanced Image Processing Techniques
  • Adipose Tissue and Metabolism
  • Renal Transplantation Outcomes and Treatments

Austral University
2022-2024

National Technological University
2014-2023

Universidad Nacional Tecnológica
2021

Hospital Universitario Austral
2014

The cortisol stress response to sedation and anesthesia in children is not well characterized. It clear whether it necessary give doses of corticosteroids with adrenal insufficiency undergoing sedated procedures. Our objective was describe the normal children. This a prospective cohort study 149 ages 1 month 17 yr who presented for routine Salivary measured at baseline, every 30 min during procedures, completion, recovery. We evaluated relative change salivary from baseline level achieved...

10.1210/jc.2012-1499 article EN The Journal of Clinical Endocrinology & Metabolism 2012-10-01

There is significant geographic variation in the etiologies and prognoses of acute liver failure (ALF). The aims present study were to determine causes short-term outcomes ALF Argentina, evaluate performance prognostic criteria, identify clinical factors death. We performed a retrospective analysis 154 adult patients with who admitted 6 transplantation (LT) programs between June 2005 December 2011. most frequent viral hepatitis B (46 or 30%), autoimmune (AIH; 40 26%), indeterminate (40 26%)....

10.1002/lt.23823 article EN Liver Transplantation 2014-01-15

Speckle is an interference phenomenon that contaminates images captured by coherent illumination systems. Due to its multiplicative and non-Gaussian nature, it challenging eliminate. The non-local means approach noise reduction has proven flexible provided good results. We propose in this work a new filter for single-look speckled data using the Shannon Rényi entropies under G0 model. obtain necessary mathematical apparatus (the Fisher information matrix asymptotic variance of maximum...

10.3390/rs14030509 article EN cc-by Remote Sensing 2022-01-21

Understanding the factors related to obesity during childhood allows for improved preventive actions specifically adapted particular communities. The purpose of this study was identify individual and familiar in children.A cross-sectional conducted an urban community Argentina years 2015-2016. Weight height were measured on a probabilistic sample 1366 schoolchildren aged 6 12 years. BMI categories established according International Obesity Task Force (IOTF) cut-offs. Data analyzed using...

10.1002/ajhb.23224 article EN American Journal of Human Biology 2019-02-19

Despite advances in surgical procedures and the optimization of immunosuppressive therapies pediatric liver transplantation, acute rejection (AR) serious adverse drug reaction (ADR) to tacrolimus still contribute morbidity mortality. Identifying risk factors safety efficacy parameters may help optimizing individual therapies. This study aimed identify peritransplant predictors AR related ADR a large Latin American cohort transplant patients.We performed retrospective population (n = 72)....

10.1097/ftd.0000000000000517 article EN Therapeutic Drug Monitoring 2018-04-06

Este artículo presenta los principales hallazgos de una revisión sistemática la literatura sobre inclusión juegos digitales en propuestas enseñanza del área Matemática. La búsqueda documental se llevó a cabo partir triangulación fuentes incluidas las bases datos Scopus y Dialnet, entre enero 2020 febrero 2022. Para selección siguió el método PRISMA, identificaron quince documentos para análisis. Los resultados muestran interés creciente parte profesorado distintos niveles educativos por...

10.32719/26312816.2022.5.2.12 article ES cc-by-nc Revista Andina de Educación 2022-10-20

Abstract Synthetic Aperture Radar (SAR) images are widely used in several environmental applications because they provide information which cannot be obtained with other sensors. The <m:math xmlns:m="http://www.w3.org/1998/Math/MathML"> <m:msubsup> <m:mi>𝒢</m:mi> <m:mi>I</m:mi> <m:mn>0</m:mn> </m:msubsup> </m:math> {\mathcal{G}_{I}^{0}} distribution is an important model for these of its flexibility (it provides a suitable way modeling areas different degrees texture, reflectivity and...

10.1515/mcma-2018-2023 article EN Monte Carlo Methods and Applications 2018-10-16

En el presente estudio se analiza perfil y las opiniones del profesorado de instituciones educación superior argentinas acerca su contexto, herramientas actividades con que trabajan en sus lecciones y, emociones experimentan al momento desarrollar tareas forma remota, debido a la suspensión clases presenciales marco medidas aislamiento social preventivo obligatorio decretado por virus COVID-19. Se aplica una metodología cuantitativa alcance descriptivo correlacional estrategias análisis...

10.22458/ie.v23i34.3238 article ES cc-by-nc-nd Innovaciones educativas 2021-06-14

Statistical modeling of Synthetic Aperture Radar (SAR) images is an important tool for image processing and interpretation, because it can contribute to a better understanding the terrain electromagnetic scattering mechanisms. To that end, G <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0</sup> <sub xmlns:xlink="http://www.w3.org/1999/xlink">I</sub> distribution able characterize large number targets. This depends on three parameters: texture,...

10.1109/igarss.2016.7729845 article EN 2016-07-01

Background: Somatization in hypertensive patients affects not only their quality of life but also adherence to treatment and the physician-patient rela...

10.7775/rac.es.v83.i2.5942 article EN Revista Argentina de Cardiología 2015-05-01

The aim was to analyze changes in normal functional parameters of gait analysis by aging, sex, and body mass index (BMI).A cross-sectional study with a consecutive sample asymptomatic subjects performed between 2014 2020. Primary outcomes were time force (contact center [CoF] time), the heel, midfoot, metatarsal areas, measured using an in-office platform.A total 156 (312 feet) included, including 67% women mean age 47 years. contact similar males females (P = .695) across BMI .413). Contact...

10.1177/24730114231198524 article EN cc-by-nc Foot & Ankle Orthopaedics 2023-07-01

A partir del contexto de enseñanza remota emergencia debido a la COVID-19, desde el año 2020 educación se enfrenta un momento histórico donde las prácticas están mediadas por tecnologías digitales y rol docente cobra protagonismo. Este artículo describe perfiles docentes Educación Superior en Argentina, analiza nivel sus competencias compara con su autopercepción sobre ellas. Para ello, plantea estudio cuantitativo enfoque descriptivo-correlacional. En relevamiento datos utilizó instrumento...

10.18861/cied.2023.14.2.3402 article ES cc-by Cuadernos de Investigación Educativa 2023-11-27

Retinoblastoma is a common intraocular tumor of childhood. One the medications used as an antineoplastic agent for retinoblastoma treatment topotecan. Its penetration into living tumorspheres quantified using confocal microscopy. Topotecan fluorescent drug and it dyes tissue. Then, recorded in sequence images over period time. The effective depends on culture characteristics requires very specific timing which calculated empirically by expert. purpose this work to offer model automatically...

10.1109/rpic.2019.8882160 article EN 2019-09-01

The statistical properties of Synthetic Aperture Radar (SAR) image texture reveal useful target characteristics. It is well-known that these images are affected by speckle and prone to extreme values due double bounce corner reflectors. G <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">I</sub> <sup xmlns:xlink="http://www.w3.org/1999/xlink">0</sup> distribution flexible enough model different degrees in speckled data. indexed three parameters:...

10.1109/lgrs.2019.2956635 article EN IEEE Geoscience and Remote Sensing Letters 2019-12-17

Introducción: la adherencia al tratamiento de diabetes mellitus tipo 2 (DM2) en el adulto es un tema complejo y multifactorial que aúna aspectos propios enfermedad como no propios, los cuales impactan calidad vida. En Argentina se presentan grandes dificultades costear totalidad del enfermedad. El impacto ingreso sobre gasto salud DM2 mayor para niveles más bajos ingresos.Objetivos: analizar adultos con diferencias variables vida objetivos metabólicos según regiones geográficas prestación...

10.47196/diab.v53i3.160 article ES Revista de la Sociedad Argentina de Diabetes 2019-12-01

In this work, a new nonlocal means filter for single-look speckled data using the Shannon and Renyi entropies is proposed. The measure of similarity between central window patches image based on statistical test comparing if two samples have same entropy hence distribution.The results are encouraging, as filtered has better signal-to-noise ratio, it preserves mean, edges not severely blurred.

10.1109/lagirs48042.2020.9165582 article EN 2020-03-01

Introduction Epidemiological studies suggest that some antiretroviral drugs may contribute to increase cardiovascular risk in HIV‐infected patients. However, data from Latin American countries are limited, as impact of HAART on remains understudied. In this context, we aimed evaluate if 10‐year Framingham Cardiovascular Risk Score (FCRS) increases patients following exposure EFV‐ and LPV/r‐based a cohort. Materials Methods Retrospective 48‐week cohort study. We reviewed clinical charts...

10.7448/ias.17.4.19547 article EN cc-by Journal of the International AIDS Society 2014-11-01
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