Towards the development of a smart flying sensor: illustration in the field of precision agriculture

Sensing is an important element to quantify productivity, product quality and to make decisions. Applications, such as mapping, surveillance, exploration and precision agriculture, require a reliable platform for remote sensing. This paper presents the first steps towards the development of a smart flying sensor based on an unmanned aerial vehicle (UAV). The concept of smart remote sensing is illustrated and its performance tested for the task of mapping the volume of grain inside a trailer during forage harvesting. Novelty lies in: (1) the development of a position-estimation method with time delay compensation based on inertial measurement unit (IMU) sensors and image processing; (2) a method to build a 3D map using information obtained from a regular camera; and (3) the design and implementation of a path-following control algorithm using model predictive control (MPC). Experimental results on a lab-scale system validate the effectiveness of the proposed methodology

The cyclical behavior of bank capital buffers in an emerging economy: size do matters

Using a panel of Colombian banks and quarterly data between 1996:1 and 2010:3, we study the relationship between short-run adjustments in bank capital buffers and the business cycle. We follow a partial adjustment framework and control for several variables that have been identified as important determinants of bank capital buffers in previous studies, and find that bank capital buffers vary overthe business cycle. We are able to identify a negative co-movement of capital buffers and and the business cycle. However, we also find that capital buffers of small and large banks behave asymmetrically during the business cycle. While the former appear to be constant over time, once the appropriate set of control variables is used, the latter present a countercyclical behavior. Our results suggest the possible need of the implementation of regulatory policy measures in developing countries.Bank capital bu§ers; Credit risk; Regulation; Colombia

Inventory control system by QR codes for the Teletecno research group

En el siguiente artículo se describe el desarrollo e implementación de un sistema de control de inventario mediante códigos QR, el cual será empleado por el grupo de investigación TELETECNO de la Universidad Distrital Francisco José de Caldas en la Facultad Tecnológica; con el fin de facilitar el acceso a la información de los instrumentos que se encuentran allí, de esta manera los estudiantes podrán hacer uso de ellos, ya sea en un trabajo de investigación o en el desarrollo de un proyecto.The following article describes the development and implementation of an inventory control system using QR codes, which will be used by the TELETECNO research group of the Francisco José de Caldas District University in the Technological Faculty; In order to facilitate access to the information of the instruments that are there, in this way the students will be able to make use of them, either in a research work or in the development of a project

A new species of \u3ci\u3eOncotophasma\u3c/i\u3e Rehn, 1904 (Phasmida: Diapheromeridae) from Colombia

Abstract. Oncotophasma aurantiaviridiata Murcia, Cadena-Castañeda, and Silva new species (Phasmida: Diapheromeridae) from the Colombian Andes is described. The new species is distinguished by its peculiar coloration, which highlights greenish and orange tones. It is also the first record of the genus for the eastern slope of the Colombian Andes. The previous distribution recorded for the genus is the Chocó biogeographic region from Costa Rica to Colombia, with species being found in the Colombian areas of influence of this biogeographic region, such as the western and central slopes of the Andes. Resumen. Se describe a Oncotophasma aurantiaviridiata Murcia, Cadena-Castañeda y Silva nueva especie proveniente de los Andes de Colombia. La nueva especie se distingue por su peculiar coloración de la cual resalta tonalidades verdosas y naranjas, además es el primer reporte del género para la vertiente oriental de los Andes Colombianos, ya que la distribución principal registrada hasta el momento para el género es la región del Chocó biogeográfico desde Costa Rica a Colombia, hallándose especies en áreas colombianas con influencia de esta región biogeográfica, como la vertiente occidental y central de los Andes. Resumo. Descrevemos aqui uma nova espécie Oncotophasma aurantiaviridiata Murcia, Cadena-Castañeda e Silva nova especie oriunda dos Andes Colombianos. A nova espécie se distingue por sua peculiar coloração que destaca tons esverdeados e laranja. Este também é o primeiro registro do gênero na encosta oriental dos Andes colombianos, uma vez que a distribuição registrada até agora para o gênero é a região do Chocó bio­geográfico da Costa Rica à Colômbia, com espécies sendo encontradas em áreas de influência da Colômbia, como as encostas oeste e central dos Andes

A Structural Parametrization of the Brain Using Hidden Markov Models Based Paths in Alzheimer's Disease

The usage of biomedical imaging in the diagnosis of dementia is increasingly widespread. A number of works explore the possibilities of computational techniques and algorithms in what is called Computed Aided Diagnosis. Our work presents an automatic parametrization of the brain structure by means of a path generation algorithm based on Hidden Markov Models. The path is traced using information of intensity and spatial orientation in each node, adapting to the structural changes of the brain. Each path is itself a useful way to extract features from the MRI image, being the intensity levels at each node the most straightforward. However, a further processing consisting of a modification of the Gray Level Co-occurrence Matrix can be used to characterize the textural changes that occur throughout the path, yielding more meaningful values that could be associated to the structural changes in Alzheimer's Disease, as well as providing a significant feature reduction. This methodology achieves high performance, up to 80.3\% of accuracy using a single path in differential diagnosis involving Alzheimer-affected subjects versus controls belonging to the Alzheimer's Disease Neuroimaging Initiative (ADNI).TIC218, MINECO TEC2008-02113 and TEC2012-34306 projects, Consejería de Economía, Innovación, Ciencia y Empleo de la Junta de Andalucía P09-TIC-4530 and P11-TIC-71

Propuesta de intervención en el departamento de Arauca Municipio de Saravena, para atender mortalidad por problemas de salud mental

Este trabajo tiene como propósito fundamental en dar a conocer a la comunidad, tutores y estudiantes de la problemática social que en la actualidad está afectando a la población del municipio de Saravena Arauca, entre los 16 y 40 años de edad; La Salud Mental, sus afectaciones, diagnósticos y diferentes patologías. Conocer las diferentes funciones en salud pública por parte del estado para la problemática que se presenta en esta actividad, dimensiones del plan de salud y objetivo de desarrollo sostenible en cuanto al tema seleccionado, todas estas pautas son de vital importancia para el desarrollo de la actividad mencionada, a partir de la construcción de conocimientos para el abordaje de los datos estadísticos del departamento de Arauca. El trabajo se desarrolla sobre la problemática encontrada a causa de la mortalidad presentada por salud mental, teniendo en cuenta los factores que abarcan esta patología de salud como los son: estrés, trastornos mentales, ya sean hereditarios o adquiridos mediante algún trauma, o uso de sustancias psicoactivas. La población afectada por la problemática a tratar, se desarrolla en personas de edades entre los 16 y 40 años de edad donde se han presentado los casos más relevantes, donde el objetivo primordial es crear un programa con el cual se disminuya el riesgo de mortalidad interviniendo el problema de salud asociado Palabras clave: Patologías, salud, enfermedad.The fundamental purpose of this work is to make the community, tutors and students aware of the social problems that are currently affecting the population of the municipality of Saravena Arauca, between 16 and 40 years of age; Mental Health, its affectations, diagnoses and different pathologies. Know the different functions in public health by the state for the problem that is presented in this activity, dimensions of the health plan and objective of sustainable development in terms of the selected topic, all these guidelines are of vital importance for the development of the activity mentioned, from the construction of knowledge for the approach of the statistical data of the department of Arauca. The work is developed on the problems encountered due to mortality presented by mental health, taking into account the factors that encompass this health pathology such as: stress, mental disorders, whether hereditary or acquired through trauma, or use of psychoactive substances. The population affected by the problem to be treated, develops in people between the ages of 16 and 40 where the most relevant cases have been presented, where the primary objective is to create a program with which the risk of mortality is reduced by intervening the associated health problem Keywords: Pathologies, health, disease

Enzyme production of D-gluconic acid and glucose oxidase : successful tales of cascade reactions

This review mainly focuses on the use of glucose oxidase in the production of D-gluconic acid, which is a reactant of undoubtable interest in different industrial areas. The enzyme has been used in numerous instances as a model reaction to study the problems of oxygen supply in bioreactors. One of the main topics in this review is the problem of the generated side product, hydrogen peroxide, as it is an enzymeinactivating reagent. Different ways to remove hydrogen peroxide have been used, such as metal catalysts and use of whole cells; however, the preferred method is the coupling glucose oxidase with catalase. The different possibilities of combining these enzymes have been discussed (use of free enzymes, independently immobilized enzymes or co-immobilized enzymes). Curiously, some studies propose the addition of hydrogen peroxide to this co-immobilized enzyme system to produce oxygen in situ. Other cascade reactions directed toward the production of gluconic acid from polymeric substrates will be presented; these will mainly involve the transformation of polysaccharides (amylases, cellulases, etc.) but will not be limited to those (e.g., gluconolactonase). In fact, glucose oxidase is perhaps one of most successful enzymes, and it is involved in a wide range of cascade reactions. Finally, other applications of the enzyme have been reviewed, always based on the production of D-gluconic acid, which produces a decrease in the pH, a decrease in the oxygen availability or the production of hydrogen peroxide; in many instances, cascade reactions are also utilized. Thus, this review presents many different cascade reactions and discusses the advantages/drawbacks of the use of co-immobilized enzymes

Complex network modelling of EEG band coupling in dyslexia: An exploratory analysis of auditory processing and diagnosis

Complex network analysis has an increasing relevance in the study of neurological disorders, enhancing the knowledge of brain’s structural and functional organization. Network structure and efficiency reveal different brain states along with different ways of processing the informa- tion. This work is structured around the exploratory analysis of the brain processes involved in low-level auditory processing. A complex network analysis was performed on the basis of brain coupling obtained from electroencephalography (EEG) data, while different auditory stim- uli were presented to the subjects. This coupling is inferred from the Phase-Amplitude coupling (PAC) from different EEG electrodes to explore differences between control and dyslexic sub- jects. Coupling data allows the construction of a graph, and then, graph theory is used to study the characteristics of the complex networks throughout time for control and dyslexic subjects. This results in a set of metrics including clustering coefficient, path length and small-worldness. From this, different characteristics linked to the temporal evolution of networks and coupling are pointed out for dyslexics. Our study revealed patterns related to Dyslexia as losing the small- world topology. Finally, these graph-based features are used to classify between control and dyslexic subjects by means of a Support Vector Machine (SVM).This work was supported by projects PGC2018-098813-B-C32 (Spanish “Ministerio de Cien- cia, Innovación y Universidades”), UMA20-FEDERJA-086 (Consejería de econnomía y conocimiento, Junta de Andalucía) and by European Regional Development Funds (ERDF). We gratefully ac- knowledge the support of NVIDIA Corporation with the donation of one of the GPUs used for this research. Work by F.J.M.M. was supported by the MICINN “Juan de la Cierva - Incorpo- ración” Fellowship. We also thank the Leeduca research group and Junta de Andalucía for the data supplied and the support. Funding for open access charge: Universidad de Málaga / CBU

Temporal phase synchrony disruption in dyslexia: anomaly patterns in auditory processing

The search for a dyslexia diagnosis based on exclusively objective methods is currently a challenging task. Usually, this disorder is analyzed by means of behavioral tests prone to errors due to their subjective nature; e.g. the subject’s mood while doing the test can affect the results. Understanding the brain processes involved is key to proportionate a correct analysis and avoid these types of problems. It is in this task, biomarkers like electroencephalograms can help to obtain an objective measurement of the brain behavior that can be used to perform several analyses and ultimately making a diagnosis, keeping the human interaction at minimum. In this work, we used recorded electroencephalograms of children with and without dyslexia while a sound stimulus is played. We aim to detect whether there are significant differences in adaptation when the same stimulus is applied at different times. Our results show that following this process, a machine learning pipeline can be built with AUC values up to 0.73.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

La imagen y la narrativa como herramientas para el abordaje psicosocial en escenarios de violencia. Municipios de Tame en Arauca, Bogotá, Chía, Pacho, Tabio y Zipaquirá en Cundinamarca.

La imagen y la narrativa como herramientas para el abordaje psicosocial en escenarios de violencia. Municipios de Tame en Arauca, Bogotá, Chía, Pacho, Tabio y Zipaquirá en Cundinamarca.El siguiente trabajo argumenta en su generalidad el proceso investigativo de aproximación a las orientaciones descriptivas trabajados durante el Profesional de Profundización y Acompañamiento Psicosocial en Escenarios de Violencia. Aquí se emprenden varios significados desde el contexto sociopolítico colombiano y se hace una proximidad a aquellas interacciones afines de los contextos de violencia por efectos de la guerra en este país. De igual manera, se asiste al análisis de discurso de los escenarios discursivos problematizadores narrativos particulares con el objetivo de concebir las problemáticas desde la perspectiva de la expresión, las emociones, todo aquello que encierra al humano y lo transporta establecer sus propias subjetividades. A partir de la psicología social se plantean habilidades de acompañamiento e intervención que admitan la reconstrucción de dignidad y se originen hechos combinados de resiliencia ante las experiencias vividas. De la igual manera, el análisis del rol profesional en lo psicosocial como estrategia de conocimientos y habilidades en pro de la memoria, subjetividad y violencia, para la formación a nivel disciplinar, formativo y humano.The following work argues in its generality the investigative process of approximation to the descriptive orientations worked during the Professional of Deepening and Psychosocial Accompaniment in Scenarios of Violence. Here various meanings are undertaken from the Colombian socio-political context and proximity to those related interactions of the contexts of violence due to the effects of the war in this country is made. In the same way, we attend the discourse analysis of the narrative problematic narrative scenarios in order to conceive the problems from the perspective of expression, emotions, everything that encloses the human and transports us to establish their own subjectivities. Based on social psychology, accompaniment and intervention skills are proposed that admit the reconstruction of dignity and originate combined facts of resilience in the face of lived experiences. In the same way, the analysis of the professional role in psychosocial as a strategy of knowledge and skills in favor of memory, subjectivity and violence, for training at the disciplinary, training and human levels