Desarrollo de las capacidades físicas básicas en niños de 11-12 años

Este trabajo académico muestra la importancia que tiene el desarrollo de las capacidades físicas básicas para las actividades de la vida cotidiana, la salud y sobre todo la importancia que tienen las etapas de crecimiento para que su trabajo sea el adecuado intentando sacar el máximo provecho de cada una de ellas para ver en el futuro sus beneficios. De acuerdo con la parte teórica se ha planificado y diseñado una propuesta didáctica para el sexto curso de Educación Primaria, donde las habilidades motrices básicas tienen su protagonismo, tanto por medio de juegos como por el método de trabajo llamado Circuit - Training.Grado en Educación Primari

Intraosseous mandibular hemangioma : a case report and review of the literature

Intraosseous vascular lesions are rare conditions, comprising only 0.5% to 1% of all intraosseous tumors. They mainly occur in the second decade of life especially in women. The most common locations are the vertebral column and skull; nevertheless, the mandible is a quite rare location. According to the World Health Organization, hemangiomas are benign vasoformative neoplasms of endothelial origin. However, the origin of central hemangioma is debatable. Some authors believe that it is a true neoplasm, whereas others state it is a hamartomatous lesion. Clinically, the patient may be completely symptom-free or may present discomfort, pulsatile bleeding, bluish discoloration, mobile teeth, derangement of the arch form or accelerated dental exfoliation. Most frequently radiographic finding is a multilocular radiolucent image with honeycombs or soap bubble appearance. Differential diagnosis includes neoplasms such as ameloblastoma, cystic lesions such as residual cyst, keratocyst and fibro-osseous lesions such as fibrous dysplasia. There are some therapeutic alternatives, although wide surgical excision remains as the gold standard. We now present a case report of a 51-year-old woman diagnosed in a mandibular hemangioma. Clinical, radiological and histological features of this unusual tumor are described

Herramienta de autoría de contenidos didácticos multimedia para entorno de formación colaborativo en cirugía de mínima invasión

Dada la gran importancia de los contenidos para el éxito del proceso de formación es necesario desarrollar herramientas que permitan la creación de los mismos de una manera simple, eficaz y motivadora. Actualmente, su proceso de creación es largo y costoso, teniendo que llevarlo a cabo expertos cirujanos docentes en estrecha colaboración con técnicos especialistas en herramientas de edición y creación de contenidos multimedia. El presente trabajo de investigación presenta una nueva herramienta de autoría que permite la creación y edición de contenidos didácticos multimedia que son utilizados en el proceso de formación de los cirujanos. La herramienta incorpora un editor multimedia de vídeos laparoscópicos, capaz de realizar un procesamiento y agregar valor didáctico a los vídeos originales. La herramienta de autoría se incorpora en un entorno de formación web que permite crear, compartir y reutilizar contenidos didácticos basados en la edición de vídeo laparoscópico

Optimization of Magnetoimpedance Effect and Magnetic Properties of Fe-Rich Glass-Coated Microwires by Annealing

As-prepared Fe-rich microwires with perfectly rectangular hysteresis loops present magnetization reversal through fast domain wall propagation, while the giant magnetoimpedance (GMI) effect in Fe-rich microwires is rather low. However, the lower cost of Fe-rich microwires makes them attractive for magnetic sensors applications. We studied the effect of conventional (furnace) annealing and Joule heating on magnetic-propertied domain wall (DW) dynamics and the GMI effect in two Fe microwires with different geometries. We observed that magnetic softness, GMI effect and domain wall (DW) dynamics can be substantially improved by appropriate annealing. Observed experimental results are discussed considering the counterbalance between the internal stresses relaxation and induced magnetic anisotropy associated with the presence of an Oersted magnetic field during Joule heating.This work was funded by the Spanish MICIN under PID2022-141373NB-I00, by the EU “Horizon Europe “under the “INFINITE” (HORIZON-CL5-2021-D5-01-06) project and by the government of the Basque Country under PUE_2021_1_0009, “Ayuda a Grupos Consolidados” (ref. IT1670-22) and Elkartek (MINERVA, MAGAF and ZE-KONP) projects

Anomalous Magnetic Anisotropy Behaviour in Co-Rich and Fe-Rich Glass-Coated Microwires under Applied Stress

In this article, we study the effect of annealing temperature and applied stress on the magnetic properties of Fe71.80B13.27Si11.02Nb2.99Ni0.92 and Co65.34Si12.00B10.20Cr8.48Fe3.90Mo0.08 microwires. An anomalous behavior of the coercive field is observed while applying stress, indicating nontrivial changes in the microwire magnetic anisotropy. The effect of applied stimuli on the magnetic anisotropy and magnetostriction constant in both microwires is also discussed.This work was supported by the EU under the “INFINITE” (HORIZON-CL5-2021-D5-01-06) project by the Spanish MICIN (PID2022-141373NB-I00) project as well as the Government of the Basque Country (PUE-2021-1-0009), Elkartek (MINERVA, MAGAF and ZE-KONP) projects and under the scheme of “Ayuda a Grupos Consolidados” (ref. IT1670-22)

Oxidative Stress, Telomere Shortening, and Apoptosis Associated to Sarcopenia and Frailty in Patients with Multimorbidity

The presence of oxidative stress, telomere shortening, and apoptosis in polypathological patients (PP) with sarcopenia and frailty remains unknown. Methods: Multicentric prospective observational study in order to assess oxidative stress markers (catalase, glutathione reductase (GR), total antioxidant capacity to reactive oxygen species (TAC-ROS), and superoxide dismutase (SOD)), absolute telomere length (aTL), and apoptosis (DNA fragmentation) in peripheral blood samples of a hospital-based population of PP. Associations of these biomarkers to sarcopenia, frailty, functional status, and 12-month mortality were analyzed. Results: Of the 444 recruited patients, 97 (21.8%), 278 (62.6%), and 80 (18%) were sarcopenic, frail, or both, respectively. Oxidative stress markers (lower TAC-ROS and higher SOD) were significantly enhanced and aTL significantly shortened in patients with sarcopenia, frailty or both syndromes. No evidence of apoptosis was detected in blood leukocytes of any of the patients. Both oxidative stress markers (GR, p = 0.04) and telomere shortening (p = 0.001) were associated to death risk and to less survival days. Conclusions: Oxidative stress markers and telomere length were enhanced and shortened, respectively, in blood samples of polypathological patients with sarcopenia and/or frailty. Both were associated to decreased survival. They could be useful in the clinical practice to assess vulnerable populations with multimorbidity and of potential interest as therapeutic targets

The Magnetostriction of Amorphous Magnetic Microwires: The Role of the Local Atomic Environment and Internal Stresses Relaxation

We studied the magnetostriction coefficients, λs, Curie temperature, Tc, and their dependence on annealing conditions in Fe47Ni27Si11B13C2 and Co67Fe3.9Ni1.5B11.5Si14.5Mo1.6 amorphous glass-coated microwires with rather different character of hysteresis loops. A positive λs ≈ 20 × 10−6 is observed in as-prepared Fe47Ni27Si11B13C2, while low and negative λs ≈ −0.3 × 10−6 is obtained for Co67Fe3.9Ni1.5B11.5Si14.5Mo1.6 microwire. Annealing affects the magnetostriction coefficients and Curie temperatures, Tc, of both Fe47Ni27Si11B13C2 and Co67Fe3.9Ni1.5B11.5Si14.5Mo1.6 glass-coated microwires in a similar way. Observed dependencies of hysteresis loops, λs and Tc on annealing conditions are discussed in terms of superposition of internal stresses relaxation and structural relaxation of studied microwires. We observed linear λs dependence on applied stress, σ, in both studied microwires. A decrease in the magnetostriction coefficient upon applied stress is observed for Co-rich microwires with low and negative magnetostriction coefficient. On the contrary, for Fe-Ni-rich microwires with a positive magnetostriction coefficient, an increase in the magnetostriction coefficient with applied stress is observed. The observed results are discussed considering the internal stresses relaxation and short range atomic rearrangements induced by annealing on hysteresis loops, magnetostriction coefficients and Curie temperatures of studied microwires.This work was supported by EU under “INFINITE” (HORIZON-CL5-2021-D5-01-06) project, by the Spanish MICIN, under PID2022-141373NB-I00 project and by the Government of the Basque Country under PUE_2021_1_0009, Elkartek (MINERVA, MAGAF and ZE-KONP) projects and under the scheme of “Ayuda a Grupos Consolidados” (ref. IT1670-22). J.O. thanks the Ministry of Higher Education, Science and Technology (MESCYT) of the Dominican Republic

Métodos de segmentación y seguimiento de estructuras para vídeo laparoscópico.

En este artículo se presenta el diseño, implementación y evaluación de tres métodos que permiten realizar la detección y el seguimiento de estructuras de interés seleccionadas por el usuario a lo largo de un conjunto de fotogramas de vídeo quirúrgico. El objetivo de estos métodos es la extracción de la información relativa a las estructuras presentes en una determinada escena quirúrgica en entornos de formación o durante los procedimientos de mínima invasión. Los resultados muestran su directa aplicabilidad a entornos didácticos, por ser técnicas semiautomáticas en las que se requiere interacción del usuario

Cierre Data Center Global Red

En la compañía Global Red se identificó la necesidad de cerrar su Data Center chapinero de 12 años de funcionamiento por obsolescencia tecnológica y por la venta del inmueble donde está ubicado, lo cual implica la migración de los clientes existentes a un nuevo centro de datos ubicado en Chicó, apagar toda la infraestructura tecnológica y electromecánica obsoleta, además la adecuación del área donde se encontraban los equipos y la disposición final de los desechos.The Global Red company identified the need to close its 12-year-old Chapinero Data Center due to technological obsolescence and the sale of the property where it is located, which implies the migration of existing clients to a new Data Center located in boy, turn off all the obsolete technological and electromechanical infrastructure, in addition to the adaptation of the area where the equipment was located and the final disposal of the waste