A Kinematic Information Acquisition Model That Uses Digital Signals from an Inertial and Magnetic Motion Capture System.

This paper presents a model that enables the transformation of digital signals generated by an inertial and magnetic motion capture system into kinematic information. First, the operation and data generated by the used inertial and magnetic system are described. Subsequently, the five stages of the proposed model are described, concluding with its implementation in a virtual environment to display the kinematic information. Finally, the applied tests are presented to evaluate the performance of the model through the execution of four exercises on the upper limb: flexion and extension of the elbow, and pronation and supination of the forearm. The results show a mean squared error of 3.82° in elbow flexion-extension movements and 3.46° in forearm pronation-supination movements. The results were obtained by comparing the inertial and magnetic system versus an optical motion capture system, allowing for the identification of the usability and functionality of the proposed model.

Upper Limb Physical Rehabilitation Using Serious Videogames and Motion Capture Systems: A Systematic Review.

The use of videogames and motion capture systems in rehabilitation contributes to the recovery of the patient. This systematic review aimed to explore the works related to these technologies. The PRISMA method (Preferred Reporting Items for Systematic reviews and Meta-Analyses) was used to search the databases Scopus, PubMed, IEEE Xplore, and Web of Science, taking into consideration four aspects: physical rehabilitation, the use of videogames, motion capture technologies, and upper limb rehabilitation. The literature selection was limited to open access works published between 2015 and 2020, obtaining 19 articles that met the inclusion criteria. The works reported the use of inertial measurement units (37%), a Kinect sensor (48%), and other technologies (15%). It was identified that 26% used commercial products, while 74% were developed independently. Another finding was that 47% of the works focus on post-stroke motor recovery. Finally, diverse studies sought to support physical rehabilitation using motion capture systems incorporating inertial units, which offer precision and accessibility at a low cost. There is a clear need to continue generating proposals that confront the challenges of rehabilitation with technologies which offer precision and healthcare coverage, and which, additionally, integrate elements that foster the patient's motivation and participation.

Early outcomes of peritoneal dialysis in a middle-income country: A retrospective cohort study of a large dialysis network in Colombia.

BACKGROUND: The first year of dialysis is critical given the significant risk for complications following dialysis initiation. We analysed complications during the first year among incident peritoneal dialysis (PD) patients. METHODS: This retrospective cohort study comprised adult kidney failure patients starting PD in Baxter Renal Care Services in Colombia, receiving their first PD catheter between 1 January 2017 and 31 December 2020 and were followed up for up to 1 year. We analysed incidence, causes and factors associated with complications using logistic regression and transfer to haemodialysis (HD) using the Fine-Gray regression model. RESULTS: Among 4743 patients receiving their first PD catheter: 4628 (97.6%) of catheter implantations were successful; 377 (7.9%) patients experienced early complications. The incidence rate of complications during the year was 0.51 events per patient-year (95% CI: 0.48-0.54). Age, obesity and urgent start were associated with higher probability of complications after catheter implantation. The cumulative incidence of transfer to HD within 1 year of PD initiation was 10.1% [95% CI: 9.2-11.1%]. The hazard function for transfer to HD showed an accelerating pattern during the first month followed by progressive decrease during the first year. CONCLUSIONS: In this large population of incident PD patients, there is a high primary catheter placement success rate. Urgent start, age ≥65 years, obesity, centre size ≥150 PD patients and diabetes were risk factors associated with early complications. The follow-up of the cohort from day 1 of PD treatment showed that the risk for transfer to HD was higher during the first month.

The influence of multiple birth and bereavement on maternal and family outcomes 2 and 7years after very preterm birth.

BACKGROUND: Psychological distress has been reported by mothers of infants born very preterm (VPT) and by mothers of multiples (twins and triplets). This study examined the influence of i) multiple birth and ii) bereavement associated with a multifetal pregnancy, on mental health, parenting stress and family functioning for mothers of children born VPT across early childhood. METHODS: Participants were 162 mothers of 194 infants (129 singletons, 65 multiples) born at <30weeks' gestation or with a birth weight<1250g who completed questionnaires when their children were two and seven years corrected age. Fifteen mothers (9%) experienced bereavement associated with a multifetal pregnancy. Maternal mental health was assessed using the General Health Questionnaire at two years and Hospital Anxiety and Depression Scale at seven years. Parenting stress and family functioning were assessed using the Parenting Stress Index and Family Assessment Device. RESULTS: Maternal mental health, stress and family functioning were similar in mothers of VPT singletons and multiples. However compared with mothers who had not experienced bereavement, mothers who had were 3.6 times [95% confidence interval (95% CI) 1.05, 12.5] more likely to report elevated anxiety symptoms and 3.6 times [95% CI 1.05, 12.3] more likely to report elevated depressive symptoms when their VPT child was seven years old. CONCLUSIONS: The results of this study highlight the need for monitoring and offering ongoing support to bereaved mothers with surviving VPT children. However, within the context of VPT birth, multiple birth does not increase the risk for maternal psychological distress in early childhood.

Infraestructura física para laboratorios en el área de ingeniería del software / Infraestrutura física para laboratórios na área de engenharia de software / Physical infrastructure for laboratories of the area of software engineering

Resumen Se presenta una propuesta del diseño de infraestructura física con los requerimientos mínimos necesarios para la construcción de un laboratorio que se adapte y facilite el desarrollo e implementación de estrategias de enseñanza y aprendizaje en las asignaturas de Ingeniería de requisitos y Gestión de proyectos informáticos del programa de Ingeniería de Sistemas y Computación de la Universidad Pedagógica y Tecnológica de Colombia (UPTC); dicha propuesta surge a partir de la aplicación y validación de estrategias metodológicas basadas en los niveles de la taxonomía de Bloom, como también en los lineamientos definidos por la guía de conocimientos de ingeniería de software Swebok; por tal razón el artículo presenta el resultado de la investigación que conllevó a esta propuesta donde se proponen el diseño y las características principales de los espacios requeridos para el desarrollo de las actividades propias de la ingeniería de software en las asignaturas mencionadas, es así que se detalla una sala principal, sala de juntas y sala de entrevistas.

Abstract It presents a proposal for the design of physical infrastructure with the minimum requirements necessary for the construction of a laboratory that adapts to the development of the subjects of Requirements Engineering and Management of computer projects of the program of Systems Engineering and Computing of the Universidad Pedagógica y Tecnológica de Colombia (UPTC), this proposal arose from the validation of teaching and learning strategies based on the levels of Bloom's taxonomy and the guidelines defined by the Swebok Software Engineering Knowledge Guide. In such a reason the article presents the design and characteristics of the main spaces for the development of the activities of software engineering in the subjects mentioned, so the main room, meeting room, and interview room are detailed.

Resumo Uma infraestrutura física projeto proposta com os requisitos mínimos para a construção de um laboratório que atende e facilitar o desenvolvimento e implementação de estratégias de ensino e aprendizagem nas disciplinas de Engenharia de Requisitos e programa de gerenciamento de projeto de TI é apresentado Engenharia de sistemas e Computação Pedagógico e Universidad Pedagógica y Tecnológica de Colombia (UPTC); Esta proposta decorre da aplicação e validação com base em níveis de taxonomia de Bloom, bem como nas orientações definidas pelo guia de estratégias metodológicas conhecimento software de engenharia SWEBOK; Por esta razão, o artigo apresenta os resultados do inquérito que conduziu a esta proposta, onde as características do projeto e principais dos espaços necessários para o desenvolvimento da engenharia próprio software nas disciplinas mencionadas actividades são propostas, de modo que detalha um salão principal, sala de reuniões e sala de entrevista.

Modelos de calidad del software, un estado del arte

Existen diferentes modelos de calidad del software que permiten un proceso de mejora continua con su implementación. En el presente escrito se exponen características de los modelos investigados a través de una revisión de información, se realiza una clasificación de los mismos de acuerdo con el nivel de proceso o de producto; cada modelo cuenta con unas características y una estructura la cual se enuncia brevemente en el escrito. Las diferentes empresas, con el fin de verse inmersas en una mejora continua de sus procesos, han identificado la importancia de hacerse a la implementación de modelos que permitan certificar y garantizar la calidad de sus productos y procesos, se encontraron algunos casos de éxito de la implementación de los modelos estudiados, los cuales permitieron a las empresas posicionarse o destacarse por mejorar los procesos de su negocio.

There are many software quality models that allows a process of continuous improvement with its implementation. In this paper some characteristics of the investigated models are exposed, through an information revision, a classification of these models is performed according to the level of the process or product; each model count with some characteristics and a structure that is briefly stated in the written. The different enterprises in order to be immersed on a continuous improvement of their processes have identified the importance of getting the implementation of models that allows to certify an guarantee the quality of their processes and products, some success cases were found for the implementation of the studied models, which allowed the enterprises to position or stand by the improvement of their business process.

Existem diferentes modelos de qualidade de software que permitem processo de melhoria contínua com a sua implementação. Neste escrita características dos modelos investigados através de uma revisão das informações forem definidos, a mesma classificados de acordo com o nível de processo ou produto é feito; cada modelo tem características e uma estrutura que brevemente indicado na carta. Diferentes empresas, a fim de ser imerso em um processo contínuo de melhoria identificaram a importância de começar a implementação de modelos para certificar e garantir a qualidade de seus produtos e processos, alguns casos de sucesso foram encontrados implementação dos modelos estudados, o que permitiu que as empresas a posicionar ou ficar para melhorar seus processos de negócios.

Ictus en adultos jóvenes: análisis de las características clínicas y epidemiológicas / Stroke in young adults: analysis of clinical and epidemiological characteristics

Ictus se define como todo déficit neurológico debido a una falta de circulación cerebral producido por un evento isquémico o hemorrágico. La edad promedio de aparición de ictus en adultos jóvenes está disminuyendo. Objetivo: Analizar las características clínico-epidemiológicas de pacientes hospitalizados con diagnóstico de ictus en el adulto joven en el Hospital Dr. Domingo Luciani de Caracas, Venezuela. Métodos: se realizó un estudio de casos, retrospectivo y descriptivo, basado en la revisión de historias. Resultados: Destacó, edad promedio 37±7 años, género masculino (59,5%), procedencia Caracas (46,8%), secundaria completa (30,4%%), tiempo transcurrido desde el inicio de los síntomas entre 4,5 y 12 horas (46,8%), estancia hospitalaria menor de 7 días (63,8%), desencadenante reposo (55,5%). Antecedentes personales: HTA (44,3%), migraña (13,9%) y drogas ilícitas (12,7%) ictus hemorrágico previo (55,7%), consumo de café (38%) consumo de alcohol (34,2%), hábito tabáquico (22,8%). Síntomas de presentación: cefalea (54,4%), mareo (31,6%), vértigo (30,4%), vómitos (20,3%). Características del ictus: isquémico 62%, lateralidad izquierda (43%), NIHSS de ingreso severo (37,9%), NIHSS de egreso leve (30,3%), RANKIN 3 (24,0%). Conclusión: contando con características clínico-epidemiológicas se puede caracterizar el comportamiento del ictus en adulto joven para plantear las estrategias de prevención apropiadas(AU)

Stroke is defined as any neurological deficit due to a lack of cerebral circulation produced by a cerebral ischemic or hemorrhagic event. The average age of onset of stroke in young adults is declining. Objective: To analyze the clinical and epidemiological characteristics of patients hospitalized with a diagnosis of stroke in young adults at the Hospital Dr. Domingo Luciani, Caracas, Venezuela. Methods: a retrospective and descriptive study was conducted, clinical charts were gathered and reviewed to get information of clinical and epidemiological variables. Results: average age 37 ± 7 years, male (59.5%), origin Caracas (46.8%), complete high school (30.4%%), time from onset of symptoms of between 4,5 and 12 hours (46.8%), hospital stay of less than 7 days (63.8%), trigger at rest (55.5%). Personal history: hypertension (44.3%), migraine 13.9%) and illicit drugs (12.7%) Prior hemorrhagic stroke (55.7%), coffee consumption (38%), alcohol consumption (34, 2%), smoking habit (22.8%). Presenting symptoms: headache (54.4%), dizziness (31.6%), vertigo (30.4%), vomiting (20.3%). Features of stroke: ischemic 62%, left laterality (43%), income NIHSS severe (37.9%), discharge NIHSS mild (30.3%), RANKIN 3 (24,0%). Conclusion: Having clinical and epidemiological features can characterize the behavior of stroke in adult to approach the the appropriate prevention strategies(AU)