Desarrollo de un videojuego y su tablero de baile, para el aprendizaje de matemáticas básicas

El uso aplicaciones de dispositivos móviles como alternativa para el aprendizaje de matemáticas se ha incrementado en los niños; aunque su uso ha influido en el incremento del sedentarismo infantil. Se atiende la contradicción: uso de la tecnología sin sedentarismo a través de un videojuego y su tablero de baile. Su uso requiere que el usuario realice actividad física, evitando así, el sedentarismo. Se identificó la oportunidad de desarrollo por medio de la TRIZ. El videojuego se programó en el software Unity 3D™. El dispositivo se ha creado con tecnologías de libre acceso y materiales de bajo costo. Antes de seleccionar la última configuración, se probaron tres diseños diferentes. El videojuego está diseñado con niveles de dificultad acordes a los conocimientos del usuario. También posee herramientas que permiten conocer el desempeño de cada estudiante y la gestión de diferentes grupos. The use of apps in portable electronic devices has increased as important tool for mathematics teaching children. Although, at the same time, children’s physical inactivity has increased. This contradiction is reversed through a basic mathematics videogame and its dancing board. To use it, the user has to do physical activity. This opportunity was identified by TRIZ Theory. The videogame was programmed in Unity 3D™ software (free version). The device was made with free access technology and low costs materials. Before to define the best design, it was tested three different patterns. The videogame contains different difficulty levels according the user knowledge. It also has tools to identify every user performance and help to manage different class groups.

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Validating an infrared thermal switch as a novel access technology

10.32920/14636247.v1 ◽

2021 ◽

Author(s):

Negar Memarian ◽

Anastasios Venetsanopoulos ◽

Tom Chau

Keyword(s):

Gold Standard ◽

Mouth Opening ◽

User Performance ◽

Access Technology ◽

Thermal Switch ◽

Qualitative Feedback ◽

Multiple Trials ◽

Audiovisual Stimuli ◽

Surrounding Areas ◽

Opening And Closing

Background Recently, a novel single-switch access technology based on infrared thermography was proposed. The technology exploits the temperature differences between the inside and surrounding areas of the mouth as a switch trigger, thereby allowing voluntary switch activation upon mouth opening. However, for this technology to be clinically viable, it must be validated against a gold standard switch, such as a chin switch, that taps into the same voluntary motion. Methods In this study, we report an experiment designed to gauge the concurrent validity of the infrared thermal switch. Ten able-bodied adults participated in a series of 3 test sessions where they simultaneously used both an infrared thermal and conventional chin switch to perform multiple trials of a number identification task with visual, auditory and audiovisual stimuli. Participants also provided qualitative feedback about switch use. User performance with the two switches was quantified using an efficiency measure based on mutual information. Results User performance (p = 0.16) and response time (p = 0.25) with the infrared thermal switch were comparable to those of the gold standard. Users reported preference for the infrared thermal switch given its non-contact nature and robustness to changes in user posture. Conclusions Thermal infrared access technology appears to be a valid single switch alternative for individuals with disabilities who retain voluntary mouth opening and closing.

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Validating an infrared thermal switch as a novel access technology

10.32920/14636247 ◽

2021 ◽

Author(s):

Negar Memarian ◽

Anastasios Venetsanopoulos ◽

Tom Chau

Keyword(s):

Gold Standard ◽

Mouth Opening ◽

User Performance ◽

Access Technology ◽

Thermal Switch ◽

Qualitative Feedback ◽

Multiple Trials ◽

Audiovisual Stimuli ◽

Surrounding Areas ◽

Opening And Closing

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IS PARTICIPATION IN PHYSICAL EDUCATION CLASSES RELATED TO PHYSICAL ACTIVITY AND SEDENTARY TIME IN ADOLESCENT BOYS AND GIRLS?

Acta kinesiologica ◽

10.51371/issn.1840-2976.2021.15.1.6 ◽

2021 ◽

pp. 52-59

Author(s):

Adam Kantanista ◽

Joanna Borowiec

Keyword(s):

Physical Activity ◽

Physical Education ◽

Screen Time ◽

Physical Inactivity ◽

Sedentary Time ◽

Electronic Devices ◽

Effective Strategy ◽

Watching Tv ◽

The Relationship ◽

Sedentary Activities

The aim of the study was to determine the relationship between adolescents’ frequency of participation in physical education and physical activity and their amount of screen time. The study included 1,502 girls and 1,379 boys aged 14–16 years. We measured the participants’ frequency of participation in physical education classes, physical activity, and sedentary behavior by means of a questionnaire-based survey. We found that participation in physical education classes was associated with higher levels of physical activity in boys and girls, less time spent on electronic devices in both genders, and less time devoted to watching TV in girls. Girls participated in physical education classes more often, had lower levels of physical activity, and spent less time on sedentary activities than boys. In conclusion, increasing the frequency of participation in physical education classes may be an effective strategy for reducing physical inactivity and sedentary lifestyles in adolescents.

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Ultrasound: the rational way to determine gestational age

Fetal and Maternal Medicine Review ◽

10.1017/s0965539597000090 ◽

1997 ◽

Vol 9 (3) ◽

pp. 133-146 ◽

Cited By ~ 7

Author(s):

Reynir T. Geirsson

Keyword(s):

Gestational Age ◽

Good Accuracy ◽

Electronic Devices ◽

Technological Advance ◽

Free Access ◽

Gestational Length ◽

Accurate Knowledge ◽

Ultrasonic Measurements ◽

Available Technology ◽

Fetal Wellbeing

At the close of this century of immense technological advance there is still debate about how best to determine when confinement is due and whether widely available technology for this should be used for all pregnant women or not. The expected date of delivery (EDD) is a central point in antenatal care. Without accurate knowledge of gestational length the evaluation of fetal wellbeing and fetal growth, as well as the timing of delivery, is bound to be difficult. No one who remembers the uncertainities surrounding gestational age assignment in the time before the advent of modern ultrasound wishes a return to those times, anymore than it is unthinkable that the telephone, televison, microwave owens, fridges, calculators or computers can be dispensed with from our lives. No one would start a flight today without using the necessary electronic devices to enable safe flying, although this may have been done fifty years ago. It may then seem strange that ultrasonic measurements of the fetus, which enable gestational length to be assessed with good accuracy, should not be universally accepted. The last menstrual period (LMP) is still widely preferred for assigning gestational age, even where there is free access to modern ultrasound.

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Promotion of Appropriate Use of Electronic Devices Among Hong Kong Adolescents

Asia Pacific Journal of Health Management ◽

10.24083/apjhm.v14i1.199 ◽

2019 ◽

Vol 14 (1) ◽

pp. 36

Author(s):

Catherine K. Y Kwong ◽

Ben Y.F Fong

Keyword(s):

Physical Inactivity ◽

Electronic Devices ◽

Family Relationship ◽

Daily Activities ◽

Appropriate Use ◽

Inappropriate Use ◽

Social Wellbeing ◽

The World ◽

Hong Kong Adolescents ◽

Relationship Addiction

The advancement of technology is changing the world so rapidly with implication to people’s daily activities and health. The excessive utilisation of electronic devices, particularly among adolescents, are affecting the physical, psychological and social wellbeing of these young people. Physical inactivity, obesity, musculoskeletal conditions, vision, cognitive development, sleep pattern, family relationship, addiction and gaming are issues of importance and attention arising from the inappropriate use of electronic devices. Stakeholders, including the parents, teachers, government, community organisations and the adolescents themselves, have different but complementary roles in the prevention of internet addiction and in the promotion of appropriate use of electronic devices among adolescents.

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Atom-probe analysis of the solid-liquid interface

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100139755 ◽

1995 ◽

Vol 53 ◽

pp. 676-677

Author(s):

J.A. Panitz

Keyword(s):

Molecular Level ◽

Selective Adsorption ◽

Electronic Devices ◽

Atom Probe ◽

Chemical Agent ◽

Hostile Environment ◽

Solid Interface ◽

Solid Liquid Interface ◽

Solid Liquid ◽

Chemically Selective

The first few atomic layers of a solid can form a barrier between its interior and an often hostile environment. Although adsorption at the vacuum-solid interface has been studied in great detail, little is known about adsorption at the liquid-solid interface. Adsorption at a liquid-solid interface is of intrinsic interest, and is of technological importance because it provides a way to coat a surface with monolayer or multilayer structures. A pinhole free monolayer (with a reasonable dielectric constant) could lead to the development of nanoscale capacitors with unique characteristics and lithographic resists that surpass the resolution of their conventional counterparts. Chemically selective adsorption is of particular interest because it can be used to passivate a surface from external modification or change the wear and the lubrication properties of a surface to reflect new and useful properties. Immunochemical adsorption could be used to fabricate novel molecular electronic devices or to construct small, “smart”, unobtrusive sensors with the potential to detect a wide variety of preselected species at the molecular level. These might include a particular carcinogen in the environment, a specific type of explosive, a chemical agent, a virus, or even a tumor in the human body.

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Study of dislocation loops in Arsenic-Rich as-grown GaAs

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100126548 ◽

1987 ◽

Vol 45 ◽

pp. 350-351

Author(s):

Byung-Teak Lee

Keyword(s):

Point Defects ◽

Electronic Devices ◽

Arsenic Concentration ◽

Stoichiometric Compound ◽

Dislocation Loops ◽

Gaas Crystal ◽

Ion Milling ◽

Transmission Electron ◽

Arsenic Source ◽

High Arsenic

Grown-in dislocations in GaAs have been a major obstacle in utilizing this material for the potential electronic devices. Although it has been proposed in many reports that supersaturation of point defects can generate dislocation loops in growing crystals and can be a main formation mechanism of grown-in dislocations, there are very few reports on either the observation or the structural analysis of the stoichiometry-generated loops. In this work, dislocation loops in an arsenic-rich GaAs crystal have been studied by transmission electron microscopy.The single crystal with high arsenic concentration was grown using the Horizontal Bridgman method. The arsenic source temperature during the crystal growth was about 630°C whereas 617±1°C is normally believed to be optimum one to grow a stoichiometric compound. Samples with various orientations were prepared either by chemical thinning or ion milling and examined in both a JEOL JEM 200CX and a Siemens Elmiskop 102.

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