Search results for " Devices"
showing 10 items of 517 documents
Beyond good and evil: The impact of digital environment in family life
2019
Internet has changed the way we interact with others and has become an essential tool for daily activities. Children and adolescents are the main users of new digital technologies and their first contact with a screen happens increasingly earlier in life. Its premature use can be dangerous: technology represents a “supernormal stimulus” that can act on the brain reward circuit and affect neural development. In this article we describe the effects of technology on the brain, well-being, social and family relationships, highlighting both positive and negative ones: rather than defining a priori any type of technology as “good” or “bad”, we should consider how specific applications are used in…
Au-delà de la frontière : la Charte de Lampedusa, un exemple de réécriture des droits contre la logique de l’enfermement
2015
The paper describes the elaboration of the Charter of Lampedusa. It focuses on the political and geopolitical upheavals of 2014, paying particular attention to the evolving humanitarian-military devices of border management and controls deployed in the Euro-Mediterranean area. Borders are analyzed not only with respect to their function of geographic separation, but also as social, cultural, and economic markers. The objectives and limits of the Charter are explored in light of its capacity to represent an alternative vision against the political, economic, social and cultural predominant model in Europe. It is argued that this model needs to be completely restructured. The alternative visi…
Retos y oportunidades de la tecnología móvil en la educación física (Challenges and opportunities of mobile technology in physical education).
2019
La educación física (EF) y su profesorado están llamados a seguir procesos de inmersión digital, voluntarios o involuntarios, asociados al consumo masivo de medios y servicios digitales y a las demandas de la sociedad y de la institución educativa. El uso de tecnología, especialmente la móvil, social y ubicua, se generaliza personal y profesionalmente, aunque la escuela sigue sin encontrarle acomodo. Reconoce su potencial didáctico, pero no logra alcanzarlo. En la EF el uso de tecnologías tradicionales y fijas han demostrado su utilidad en la fase preactiva y postactiva del acto didáctico, sin embargo, los aprendizajes en movilidad propios de la fase activa, aconsejan explorar alternativas …
Digital Devices Use and Language Skills in Children between 8 and 36 Month
2020
Background: Over the past decade, the use of digital tools has grown and research evidence suggests that traditional media and new media offer both benefits and health risks for young children. The abilities to understand and use language represent two of the most important competencies developed during the first 3 years of life through the interaction of the child with people, objects, events, and other environmental factors. The main goal of our study is to evaluate the relationship between digital devices use and language abilities in children between 8 and 36 month, also considering the influence of several factors. Materials and Methods: We conducted a cross-sectional observational stu…
Secondary Education Students’ Questions on Experimental Devices
2012
Las preguntas forman parte esencial del trabajo que desarrollan los científicos para construir nuevo conocimiento. Sin embargo, los alumnos formulan un número muy escaso de preguntas en las situaciones usuales de aula. En este trabajo se realiza una revisión de las investigaciones realizadas sobre génesis de preguntas y se describen tres estudios empíricos realizados con estudiantes de diferentes niveles educativos ante dispositivos experimentales. Los objetivos fueron: 1) Estimular y analizar las preguntas de los estudiantes cuando intentan comprender los dispositivos; 2) Contrastar la idea de que la mayoría de preguntas destinadas a obtener información tienen su origen en inferencias fall…
Aligned microcontact printing of biomolecules on microelectronic device surfaces
2001
Microcontact printing (/spl mu/CP) of extracellular matrix proteins is a fascinating approach to control cell positioning and outgrowth, which is essential in the development of applications ranging from cellular biosensors to tissue engineering. Microelectronic devices can be used to detect the activity from a large number of recording sites over the long term. However, signals from cells can only be recorded at small sensitive spots. Here, the authors present an innovative setup to perform aligned /spl mu/CP of extracellular matrix proteins on microelectronic devices in order to guide the growth of electrogenic cells specifically to these sensitive spots. The authors' system is based on t…
Improvement of the expression of upper limb muscle strength and balance in a group of patients with multiple sclerosis, through a proprioceptive reha…
2022
In multiple sclerosis (MS) patients, symptoms such as: fatigue, lack of physical energy, spasticity, difficulty in performing movements, and motor coordination disorders, and with tremors, dizziness and postural instability are among the most common complications. Cattaneo et al. (2007) studied the effects of stability training on MS patients and described it as an effective intervention in reducing falls risk, improving stability, and strength. Therefore, the present study aimed to confirm early observations by the application of a proprioceptive rehabilitation program targeting balance and strength on MS patients. 13 subjects with MS, 5 male and 8 female, volunteered in the study. A MAP h…
Immuno-MALDI-MS in Human Plasma and on-Chip Biomarker Characterizations at the Femtomole Level
2012
Immuno-SPR-MS is the combination of immuno-sensors in biochip format with mass spectrometry. This association of instrumentation allows the detection and the quantification of proteins of interest by SPR and their molecular characterization by additional MS analysis. However, two major bottlenecks must be overcome for a wide diffusion of the SPR-MS analytical platform: (i) To warrant all the potentialities of MS, an enzymatic digestion step must be developed taking into account the spot formats on the biochip and (ii) the biological relevancy of such an analytical solution requires that biosensing must be performed in complex media. In this study, we developed a procedure for the detection …
Birefringent porous silicon membranes for optical sensing
2012
In this work anisotropic porous silicon is investigated as a material for optical sensing. Birefringence and sensitivity of the anisotropic porous silicon membranes are thoroughly studied in the framework of Bruggeman model which is extended to incorporate the influence of environment effects, such as silicon oxidation. The membranes were also characterized optically demonstrating sensitivity as high as 1245 nm/RIU at 1500 nm. This experimental value only agrees with the theory when it takes into consideration the effect of silicon oxidation. Furthermore we demonstrate that oxidized porous silicon membranes have optical parameters with long term stability. Finally, we developed a new model …
Tietotekniikan valtakunnallisten oppisisältöjen toteutuminen Keski-Suomen peruskoulujen opetuskäytänteissä
2017
Tutkimus sai alkunsa kiinnostuksesta uusia Perusopetuksen opetussuunnitelman perusteita kohtaan. Vuonna 2014 hyväksytty POPS asettui erityisesti tieto- ja viestintätekniikan opetuksen osalta vastaamaan perusopetuksessa havaittuihin puutteisiin ja ongelmiin. Tutkimuksen tarkoituksena oli selvittää mitä uusia sisältöjä POPS14 tuo tietotekniikan opetukseen sekä kuinka noiden sisältöjen opetus toteutuu koulujen arjessa. Tutkimuksessa tunnistettiin tyypilliset ja yleisesti käytössä olevat TVT:n opetusmenetelmät ja niitä pyrittiin kuvailemaan laadullisen tutkimuksen keinoin. Tavoitteeseen päästiin lähinnä Opetushallituksen julkaisuihin kohdistuneen kirjallisuuskatsauksen, Keski-Suomen peruskouluj…