Análisis de prácticas con robots para la enseñanza de ángulos en educación primaria

En este trabajo se presenta el inicio de una investigación sobre el uso de la tecnología y robótica en la enseñanza/aprendizaje de los ángulos en dos grupos de cuarto de primaria, actuando uno de ellos como grupo de control. Se diseña un contexto metodológico para el grupo experimental que promueve la realización de actividades STEAM (Sciencie, Tecnology, Engeneering, Art y Mathematics). El objetivo es analizar prácticas educativas donde se trabaja el concepto de ángulo a través de la manipulación de robots y el lenguaje Scratchx

Proyecto piloto de Educación Matemática inclusiva

“Matemociones” es un proyecto realizado por el GID-TESELA de la Universidad de Santiago de Compostela con el apoyo de la Asociación IGAXES3 (Instituto Gallego de Ayuda al Tercer Sector); y va dirigido a adolescentes en riesgo de exclusión social. El objetivo del proyecto es trabajar el estímulo matemático a través de actividades motivadoras, estableciendo conexiones entre los contenidos de un bloque, los contenidos de diferentes bloques y, así mismo, entre diferentes materias. Esta idea trata de complementar a nivel emocional el apoyo que, habitualmente, recibe este alumnado basado en el refuerzo de los contenidos curriculares. En este trabajo se presenta el estudio piloto realizado en una casa de acogida con un grupo de seis adolescentes durante el mes de julio de 2016. Se llevaron a cabo cuatro actividades: Mathmusic, Yo también hago magia, Las mates por el aire y Mandalas sobre piedras

Invasion of epithelial cells by Trichinella spiralis: in vitro observations

It has been known for many years that Trichinella spiralis initiates infection by penetrating the columnar epithelium of the small intestine, however, the mechanisms used by the parasite in the establishment of its intramulticellular niche in the intestine are unknown. The recent demonstration that invasion also occurs in vitro when infective larvae of T. spiralis are inoculated onto cultures of epithelial cells provides a model that allows the direct observation of the process by which the parasite recognizes, invades and migrates within the epithelium. The finding that penetration of the cell membrane or Induction of plasma membrane wounds by larvae do not always result in invasion argue in favor of some kind of host-parasite communication in successful invasion. In this sense, the in vitro model of invasion provides a readily manipulated and controlled system to investigate both parasite, and host cell requirements for invasion

Invasion of epithelial cells by

It has been known for many years that Trichinella spiralis initiates infection by penetrating the columnar epithelium of the small intestine, however, the mechanisms used by the parasite in the establishment of its intramulticellular niche in the intestine are unknown. The recent demonstration that invasion also occurs in vitro when infective larvae of T. spiralis are inoculated onto cultures of epithelial cells provides a model that allows the direct observation of the process by which the parasite recognizes, invades and migrates within the epithelium. The finding that penetration of the cell membrane or Induction of plasma membrane wounds by larvae do not always result in invasion argue in favor of some kind of host-parasite communication in successful invasion. In this sense, the in vitro model of invasion provides a readily manipulated and controlled system to investigate both parasite, and host cell requirements for invasion

Possible presence of common tyvelose-containing glycans in

A monoclonal antibody (mAb US4) recognising an epitope containing tyvelose within the T. spiralis L-1 muscle larvae (TSL-1) antigens was tested in western-blot against various antigenic preparations from different stages of the following nematodes: T. spiralis (L1,adult), T. muris (egg, L1, L3, adult), Ascaris suum (egg, adult), Toxocara canis (egg, adult), Anisakis simplex (L3) and Haemochus contortus (egg). Positive reaction was present in antigen preparations from L1 larvae of T. spiralis and T. muris and from embryonated eggs of T. muris, A. suum, T. canis and H. conlortus

Possible presence of common tyvelose-containing glycans in Trichinella L1 larvae and embryonated eggs of several nematodes

A monoclonal antibody (mAb US4) recognising an epitope containing tyvelose within the T. spiralis L-1 muscle larvae (TSL-1) antigens was tested in western-blot against various antigenic preparations from different stages of the following nematodes: T. spiralis (L1,adult), T. muris (egg, L1, L3, adult), Ascaris suum (egg, adult), Toxocara canis (egg, adult), Anisakis simplex (L3) and Haemochus contortus (egg). Positive reaction was present in antigen preparations from L1 larvae of T. spiralis and T. muris and from embryonated eggs of T. muris, A. suum, T. canis and H. conlortus

Prospective Primary Teachers’ Didactic-Mathematical Knowledge in a Service-Learning Project for Inclusion

An analysis of the didactic-mathematical knowledge put into play by a sample of 30 prospective primary teachers during their participation in a Service-Learning program focused on mathematical stimulation as a measure of attention to adolescents at risk of social exclusion is presented. The program aimed to respond to current training demands by promoting the development of mathematics-specific professional competencies, as well as social skills to interact with students, and to positively influence the prospective teachers’ affection towards mathematics and its teaching. It was developed during three academic years in two phases: the learning module was oriented to the presentation of the mathematical stimulus program and the didactical analysis of the STEAM activities knocking it into shape; in the service module, the participants implemented the activities in an educational center with students at risk of social exclusion. The analysis was carried out from the video recordings of the sessions, the future teachers’ written reports with the analysis of the activities, questionnaires on the didactic-mathematical knowledge and a satisfaction test. The results show difficulties on the part of the future teachers to analyze some of the activities of the program, which seems to have its origin in their poor command of the common knowledge of the mathematical content, which also limits them when it comes to managing the activities in the way expected for the stimulus program. All in all, participation in the program was positively assessed by them in relation to its usefulness for their training. The potential benefit of Service-Learning programs such as the one addressed here in the face of a positive impact on the affections towards mathematics is concluded, as a necessary step for a more effective acquisition of didactic-mathematical knowledge and skills in the initial training

Análisis del efecto de un programa de estímulo matemático en adolescentes en riesgo de exclusión social

En este trabajo se presenta un análisis de los resultados de un programa socioeducativo de incentivo del estímulo matemático, dirigido a adolescentes en riesgo de exclusión social. El objetivo de nuestra investigación es la identificación de variaciones sobre el rendimiento académico en matemáticas de este tipo de alumnado, una vez que ha participado en dicho programa (Blanco, Gorgal, Salgado y Diego-Mantecón, 2017)

Diagnosing Human Anisakiasis: Recombinant Ani s 1 and Ani s 7 Allergens versus the UniCAP 100 Fluorescence Enzyme Immunoassay ▿

Commercially available serological methods for serodiagnosis of human anisakiasis either are poorly specific or do not include some of the most relevant Anisakis allergens. The use of selected recombinant allergens may improve serodiagnosis. To compare the diagnostic and clinical values of enzyme-linked immunosorbent assay (ELISA) methods based on Ani s 1 and Ani s 7 recombinant allergens and of the UniCAP 100 fluorescence enzyme immunoassay (CAP FEIA) system, we tested sera from 495 allergic and 25 non-food-related allergic patients. The decay in specific IgE antibodies in serum was also investigated in 15 positive patients over a period of 6 to 38 months. Considering sera that tested positive by either Ani s 1 or Ani s 7 ELISA, the CAP FEIA classified 25% of sera as falsely positive, mainly in the group of patients with the lowest levels of anti-Anisakis IgE antibodies, and 1.28% of positive sera as falsely negative. Considering allergens individually, the overall sensitivities of Ani s 7 ELISA and Ani s 1 ELISA were 94% and 61%, respectively. The results also showed that anti-Anisakis IgE antibodies can be detected in serum for longer with Ani s 1 ELISA than with Ani s 7 ELISA and CAP FEIA (P < 0.01). Our findings suggest that ELISA methods with Ani s 7 and Ani s 1 allergens as targets of IgE antibodies are currently the best option for serodiagnosis of human anisakiasis, combining specificity and sensitivity. The different persistence of anti-Ani s 1 and anti-Ani s 7 antibodies in serum may help clinicians to distinguish between recent and old Anisakis infections