Inclusión digital de los estudiantes adultos que acceden a la universidad: análisis de sus actitudes y competencias digitales

Esta investigación se propone identificar las actitudes y competencias de los estudiantes adultos en relación con el uso de las TIC, con especial atención al uso de plataformas digitales de aprendizaje y redes sociales (Web 2.0). Asimismo, evalúa la incidencia de algunas variables sociodemográficas (género y edad) en el uso estas herramientas y en la autopercepción de los estudiantes sobre sus competencias digitales. Se ha realizado un estudio tipo encuesta con una muestra de 382 estudiantes que acceden a la Universidad de Sevilla a través de las vías establecidas para mayores de 25, de 40 y 45 años. Los resultados ponen de manifiesto una actitud generalmente positiva ante las TIC que puede calificarse como de pragmática, ya que estas herramientas se valoran positivamente en función de sus potenciales beneficios en los procesos de aprendizaje. Se constata a la vez que no han recibido formación específica en el uso de las TIC. El nivel de competencia que este alumnado percibe tener en el uso de estos recursos es medio-bajo. Además, el grupo de estudiantes mayores de 45 años se considera menos competente que los mayores de 25 y de 40 años. En consecuencia, se realizan algunas propuestas para mejorar la participación de los estudiantes maduros en la enseñanza universitaria.

The influence of socio-demographic, psychological and knowledge-related variables alongside perceived cooking and food skills abilities in the prediction of diet quality in adults: a nationally representative cross-sectional study

Background: Interventions to increase cooking skills (CS) and food skills (FS) as a route to improving overall diet are popular within public health. This study tested a comprehensive model of diet quality by assessing the influence of socio-demographic, knowledge- and psychological-related variables alongside perceived CS and FS abilities. The correspondence of two measures of diet quality further validated the Eating Choices Index (ECI) for use in quantitative research.
Methods: A cross-sectional survey was conducted in a quota-controlled nationally representative sample of 1049 adults aged 20–60 years drawn from the Island of Ireland. Surveys were administered in participants’ homes via computer-assisted personal interviewing (CAPI) assessing a range of socio-demographic, knowledge- and psychological-related variables alongside perceived CS and FS abilities. Regression models were used to model factors influencing diet quality. Correspondence between 2 measures of diet quality was assessed using chi-square and Pearson correlations.
Results: ECI score was significantly negatively correlated with DINE Fat intake (r = -0.24, p < 0.001), and ECI score was significantly positively correlated with DINE Fibre intake (r = 0.38, p < 0.001), demonstrating a high agreement. Findings indicated that males, younger respondents and those with no/few educational qualifications scored significantly lower on both CS and FS abilities. The relative influence of socio-demographic, knowledge, psychological variables and CS and FS abilities on dietary outcomes varied, with regression models explaining 10–20 % of diet quality variance. CS ability exerted the strongest relationship with saturated fat intake (β = -0.296, p < 0.001) and was a significant predictor of fibre intake (β = -0.113, p < 0.05), although not for healthy food choices (ECI) (β = 0.04, p > 0.05).
Conclusion: Greater CS and FS abilities may not lead directly to healthier dietary choices given the myriad of other factors implicated; however, CS appear to have differential influences on aspects of the diet, most notably in relation to lowering saturated fat intake. Findings suggest that CS and FS should not be singular targets of interventions designed to improve diet; but targeting specific sub-groups of the population e.g. males, younger adults, those with limited education might be more fruitful. A greater understanding of the interaction of factors influencing cooking and food practices within the home is needed.

German consumers' attitudes and preferences with regard to organic food and food from different origins

In dieser Studie geht es darum, ein umfassendes Bild bezüglich der Konsumenteneinstellungen, Präferenzen und Zahlungsbereitschaften für ökologisch produzierte Lebensmittel und Lebensmittel verschiedener Herkünfte in Deutschland zu erhalten. Obwohl die regionale Herkunft von Lebensmitteln nicht offiziell und einheitlich geregelt ist und keiner Zertifizierung unterliegt wie die ökologische Produktion von Lebensmitteln, zeigen nationale und internationale Studien gleichermaßen, dass Konsumenten bereit sind, mehr für regionale als für ökologisch produzierte Lebensmittel zu bezahlen. Zur Erreichung des Forschungsziels wurde ein Kaufexperiment in Kombination mit einer Konsumentenbefragung, bestehend aus Fragen zum generellen Einkaufsverhalten, zu Einstellungen gegenüber regionalen und ökologisch produzierten Lebensmitteln und zu soziodemographischen Informationen durchgeführt. Im Kaufexperiment wurden die Attribute Produktherkunft, Produktionsweise und Preis anhand vier verschiedener Produkte (Äpfel, Butter, Mehl und Steaks) untersucht. Die Befragung, einschließlich des Experimentes, war durch Interviewer eines Marktforschungsinstituts initiiert, computergestützt und von den Konsumenten selbständig zu erledigen. Das Ziel war es 80 Konsumenten in jedem der acht Befragungsorte in verschiedenen Regionen Deutschlands zu befragen. Zur Auswertung des Experiments wurden RPL-Modell geschätzt, die die Konsumentenpräferenzen für die zu untersuchenden Produktattribute aufzeigen und die Berechnung von Zahlungsbereitschaften ermöglichen. Für die Gesamtheit der Konsumenten war die regionale Herkunft von Lebensmitteln wichtiger als die ökologische Produktion. Außerdem wurden Produktalternativen, die aus der Region stammen, immer stärker präferiert als Produkte aus Deutschland, aus einem Nachbarland und einem außereuropäischen Land. Weiterhin zeigte die Studie, dass Konsumentenpräferenzen produkt- und regionsspezifisch sind. Folglich wird empfohlen, in zukünftigen Studien unterschiedlich Produkte bzw. Produktgruppen und Konsumenten verschiedener Regionen einzubeziehen. Die zunehmenden Präferenzen und Zahlungsbereitschaften der Konsumenten für regionale Lebensmittel deuteten sowohl in dieser Dissertation als auch in vielen anderen nationalen und internationalen Studien darauf hin, dass es ein großes Potential für einen regionalen Lebensmittelmarkt gibt. Aus diesem Grund wird Produzenten und Vermarktern von ökologischen sowie konventionellen Produkten empfohlen, verstärkt in die Entwicklung von regionalen Versorgungsketten zu investieren.

Deep Decline

Thesis (Ph.D.)--University of Washington, 2016-08

ICAN directory, 1991.

This directory provides information related to the Iowa Computer-Assisted Network (ICAN) sites and their associated libraries. ICAN is an interlibrary loan network which uses IBM-type computers to generate and fill requests for library resources.

Évaluation du programme d’intervention en nutrition «Nutriathlon en équipe (version Web)» chez des adolescents du secondaire

Les problématiques de surplus de poids sont en augmentation depuis les dernières décennies, notamment chez les jeunes québécois. Cette augmentation est en lien avec des habitudes alimentaires présentant des différences importantes avec les recommandations nutritionnelles. De plus, le gouvernement provincial a instauré des changements importants au Programme de formation de l’école québécoise afin de stimuler l’adoption de saines habitudes de vie. Afin de contrer ces problématiques de surplus de poids et d’habitudes alimentaires déficientes et de poursuivre dans la lignée de la réforme scolaire, le Nutriathlon en équipe version Web a été développé. Ce programme a pour but d’amener chaque participant à améliorer la qualité de son alimentation en augmentant et en diversifiant sa consommation de légumes, de fruits et de produits laitiers. Les objectifs de la présente étude sont (1) d’évaluer l’impact du programme sur la consommation de légumes, de fruits (LF) et de produits laitiers (PL) d’élèves du secondaire et (2) d’évaluer les facteurs influençant la réussite du programme chez ces jeunes. Les résultats de l’étude ont démontré que pendant le programme ainsi qu’immédiatement après, le groupe intervention a rapporté une augmentation significative de la consommation de LF et de PL par rapport au groupe contrôle. Par contre, aucun effet n’a pu être observé à moyen terme. Quant aux facteurs facilitant le succès du Nutriathlon en équipe, les élèves ont mentionné : l’utilisation de la technologie pour la compilation des portions, la formation d’équipes, l’implication des enseignants et de l’entourage familial ainsi que la création de stratégies pour faciliter la réussite du programme. Les élèves ont également mentionné des barrières au succès du Nutriathlon en équipe telles que le manque d’assiduité à saisir leurs données en dehors des heures de classe, la dysfonction du code d’utilisateur et l’incompatibilité de la plateforme avec certains outils technologiques comme les tablettes.

Remolding a company through a compliance program : the case of Siemens

Abstract : Since at least the 1980's, a growing number of companies have set up an ethics or a compliance program within their organization. However, in the field of study of business management, there is a paucity of research studies concerning these management systems. This observation warranted the present investigation of one company's compliance program. Compliance programs are set up so that individuals working within an organization observe the laws and regulations which pertain to their work. This study used a constructivist grounded theory methodology to examine the process by which a specific compliance program, that of Siemens Canada Limited, was implemented throughout its organization. In conformity with this methodology, instead of proceeding with the investigation in accordance to a particular theoretical framework, the study established a number of theoretical constructs used strictly as reference points. The study's research question was stated as: what are the characteristics of the process by which Siemens' compliance program integrated itself into the existing organizational structure and gained employee acceptance? Data consisted of documents produced by the company and of interviews done with twenty-four managers working for Siemens Canada Limited. The researcher used QSR-Nvivo computer assisted software to code transcripts and to help with analyzing interviews and documents. Triangulation was done by using a number of analysis techniques and by constantly comparing findings with extant theory. A descriptive model of the implementation process grounded in the experience of participants and in the contents of the documents emerged from the data. The process was called "Remolding"; remolding being the core category having emerged. This main process consisted of two sub-processes identified as "embedding" and "appraising." The investigation was able to provide a detailed account of the appraising process. It identified that employees appraised the compliance program according to three facets: the impact of the program on the employee's daily activities, the relationship employees have with the local compliance organization, and the relationship employees have with the corporate ethics identity. The study suggests that a company who is entertaining the idea of implementing a compliance program should consider all three facets. In particular, it suggests that any company interested in designing and implementing a compliance program should pay particular attention to its corporate ethics identity. This is because employee's acceptance of the program is influenced by their comparison of the company's ethics identity to their local ethics identity. Implications of the study suggest that personnel responsible for the development and organizational support of a compliance program should understand the appraisal process by which employees build their relationship with the program. The originality of this study is that it points emphatically that companies must pay special attention in developing a corporate ethics identify which is coherent, well documented and well explained.

Dataspelet Minecraft i matematikundervisningen : en interventionsstudie

Finländska elever presterar fortsättningsvis bra i matematik men deras inre motivation till ämnet är klart under medelnivån för OECD-länderna. Det finns ett konstaterat samband mellan intresse och prestationer, och att höja elevernas intresse vore därför viktigt. Användningen av dataspel i undervisningen möjliggör just detta då det kunde höja elevernas motivation och intresse. Det finns en del tidigare forskning om hur dataspel påverkar inlärningen, men eftersom området fortfarande är relativt nytt finns luckor att fylla. De övergripande resultaten inom området inlärning genom dataspel är positiva och lovande. Tidigare forskning visar att användningen av dataspel i matematikundervisningen har en positiv inverkan på elevernas prestationer. Man har också kunnat konstatera att användningen av dataspel i undervisningen påverkar elevernas attityder till ämnet positivt, men forskning om hur specifika affektiva faktorer som intresse, självuppfattning och matematikångest påverkas saknas. Syftet med avhandlingen är att undersöka effekten av dataspelet MinecraftEdu på finländska studerande inom yrkesutbildningen. Forskningsfrågorna som avhandlingen utgår ifrån är följande: Hur påverkar användningen av MinecraftEdu i matematikundervisningen låg- och normalpresterande studerandes 1) matematiska färdigheter, 2) intresse för matematik, 3) matematiska självuppfattning och 4) matematikångest? Forskningsmetoden är kvantitativ och datainsamlingen har genomförts med hjälp av en webbenkät och det standardiserade testet RMAT samt 8 problemlösningsuppgifter. Respondenterna bestod av andra årets studerande inom den finländska yrkesutbildningen. Experimentgruppen som bestod av studerande inom datanomutbildningen undervisades med hjälp av dataspelet Minecraft. Kontrollgruppen, bestående av studerande inom utbildningen för fordonsmekaniker, undervisades traditionellt. Data samlades in vid två tillfällen, före och efter avslutad kurs. Som analysmetod valdes en kovariansanalys. Resultaten av undersökningen tyder på att användningen av MinecraftEdu kan ha positiva effekter på studerandes matematiska färdigheter, speciellt problemlösningsfärdigheter. Resultaten tyder också på att lågpresterande studerande kan gynnas av undervisning genom MinecraftEdu, speciellt med tanke på matematiskt intresse och matematiska färdigheter. Skillnaderna mellan grupperna var dock inte signifikanta och resultaten kan därför inte generaliseras. Resultaten ger däremot en uppfattning om vilken effekt den här typen av undervisning kan ha.

Seguimiento a la interacción del estudiante con recursos educativos desplegados en contextos diferentes al LMS a través de la implementación del estándar Tin Can Api

Los maestros deben fortalecer desde el currículo ambientes adecuados para que los estudiantes se apropien del manejo de las TIC (Tecnologías de la Información y Comunicación) y las involucren en el proceso de enseñanza - aprendizaje; favoreciendo con esto el desarrollo de los contenidos en todas las áreas -- Cuando se pretende hacer uso de las TIC para mejorar el aprendizaje significativo de los estudiantes, se evidencia la debilidad que tiene el maestro para realizar un seguimiento a las actividades informales que realiza el estudiante para comprender un tema o adquirir una competencia -- El primer acercamiento para mejorar esta problemática, es realizar una integración de un estándar educativo para llevar un control y registrar las actividades informales que el estudiante realice a través de Internet, empleando un sinnúmero de aplicaciones que la web ofrece -- Para el mejoramiento del proceso evaluativo de los estudiantes de la Institución Educativa San José, se implementará la integración del estándar Tin Can Api dentro de un prototipo para realizar seguimiento a las actividades informales que realicen los estudiantes con el fin de llevar un registro de experiencias de aprendizaje -- Teniendo en cuenta lo anterior el maestro debe estar preparado para utilizar metodologías apoyadas en las herramientas tecnológicas, así el aprendizaje se logra con mayor disfrute y calidad

Lesion detection performance: comparative analysis of low-dose CT data of the chest on two hybrid imaging systems

Incidental findings on low-dose CT images obtained during hybrid imaging are an increasing phenomenon as CT technology advances. Understanding the diagnostic value of incidental findings along with the technical limitations is important when reporting image results and recommending follow-up, which may result in an additional radiation dose from further diagnostic imaging and an increase in patient anxiety. This study assessed lesions incidentally detected on CT images acquired for attenuation correction on two SPECT/CT systems. Methods: An anthropomorphic chest phantom containing simulated lesions of varying size and density was imaged on an Infinia Hawkeye 4 and a Symbia T6 using the low-dose CT settings applied for attenuation correction acquisitions in myocardial perfusion imaging. Twenty-two interpreters assessed 46 images from each SPECT/CT system (15 normal images and 31 abnormal images; 41 lesions). Data were evaluated using a jackknife alternative free-response receiver-operating-characteristic analysis (JAFROC). Results: JAFROC analysis showed a significant difference (P < 0.0001) in lesion detection, with the figures of merit being 0.599 (95% confidence interval, 0.568, 0.631) and 0.810 (95% confidence interval, 0.781, 0.839) for the Infinia Hawkeye 4 and Symbia T6, respectively. Lesion detection on the Infinia Hawkeye 4 was generally limited to larger, higher-density lesions. The Symbia T6 allowed improved detection rates for midsized lesions and some lower-density lesions. However, interpreters struggled to detect small (5 mm) lesions on both image sets, irrespective of density. Conclusion: Lesion detection is more reliable on low-dose CT images from the Symbia T6 than from the Infinia Hawkeye 4. This phantom-based study gives an indication of potential lesion detection in the clinical context as shown by two commonly used SPECT/CT systems, which may assist the clinician in determining whether further diagnostic imaging is justified.

Telefone celular como recurso didático no ensino de física

Currently, there are several factors that suggest the need for the school to review their teaching practices: 1) the speed with which information and communication technologies - ICT are spread throughout society and in particular the increasing use of mobile phone by groups in school age;2) the scope and power of integrating ICT convergence of these technological resources, that can be used as teaching resources; 3) the fact that nowadays students grow up in a technological world and make their thought patterns operating in accordance with this reality, etc... In contrast, there are educators unrelated to the appropriation of ICT, presenting, in many cases, resistance to them. There is a incongruity between how individuals use mobile phones, for example, inside and outside the school. There are also educators, schools, public educational departments claiming to be against mobile phones usage; bills and laws regulating their use in educational space, etc... For these controversial aspects we have investigated whether cell phone use as a teaching resource practices mediator in Physics teaching. For this purpose, we developed an applied research with qualitative and exploratory approach about the objectives, adopting participant and the technical procedures. A documental and bibliographical research was taken. First of all, data were collected by e-mail, through a multiple choice questionnaire applied to private school teachers in southern Brazil, to identify the researched reality and develop teaching practices likely to be applied in the studied corpus. Then, such practices were applied in workshops located in Curitiba and Ponta Grossa cities, in Paraná state. During the application, data was collected by the researcher's field notes. Then, we recorded chats about the workshops from an instant message software (msn messenger), and we took photographic records. Data analysis was performed by triangulation. The results showed the need to enhance continuing education courses for teachers and the production of national academic literature, such as articles, dissertations, theses and books that explore the theme of the cell phone and its functionality in educational spaces as an educational resource mediator in the practices of teaching Physics. They are available in the dissertation defended in 2012, and now are also systematized in this book, organized as a final product of research conducted by the Graduate Program in Science Education and Technology UTFPR, Campus Ponta Grossa-PR.

Electronic Publishing -- a Journal and its Production

The use of the term "Electronic Publishing" transcends any notions of the paperless office and of a purely electronic transfer and dissemination of information over networks. It now encompasses all computer-assisted methods for the production of documents and includes the imaging of a document on paper as one of the options to be provided by an integrated processing scheme. Electronic publishing draws heavily on techniques from computer science and information technology but technical, legal, financial and organisational problems have to be overcome before it can replace traditional publication mechanisms. These problems are illustrated with reference to the publication arrangements for the journal `Electronic Publishing Origination, Dissemination and Design'. The authors of this paper are the co-editors of this journal, which appears in traditional form and relies on a wide variety of support from electronic technologies in the pre-publication phase.

Objetos de ensino, suas potencialidades e dificuldades para aprendizagem de física no ensino médio

Acompanha: Procedimento para o uso do Tracker como objeto de ensino, suas potencialidades e dificuldades para aprendizagem de física no ensino médio

Estatística com projetos: uma alternativa de ensino e aprendizagem

This work presents the use of projects as an alternative for teaching statistics, for that it was elaborated a Project that involves the educational socioeconomic reality from the families of the students and built a link between the reality and the scholastic knowledge. This project was applied in Sesi School - Pato Branco between the months of August to September 2014 with 25 students from the 1o and 2o grades from High School. To work the statistics concepts a questionnaire was applied for the parents of the students of the Project´s, they answer it and through these answers the students made frequency tables and graphs, besides measure calculations on measures of central tendency and dispersion measure. All of the construction were realized manually and in the Excel spreadsheet and some of them were chosen to be in this work to with the purpose of showing the hits and the mistakes done. The students worked in groups of 5 students, except in the last class when it was done a test referring to the contents taught in the classroom and a questionnaire for them to evaluate the project´s application. The results show that the teaching of Statistics trough projects motivate the students interest, stimulating the statistical reasoning, in addition made the students know a Math that was different from the one they have already known, with a lot of calculation but with no final objective.