Realitat de ficci��: una recerca en la impressi�� digital sobre suports r��gids

Dins del projecte de recerca I+D Impressi�� expandida: repercussions dels mitjans digitals en el context de l���art impr��s, amb codi: HUM 2007-64757/ARTE i finan��at pel Ministerio de Ciencia yTecnologia, l���any 2007 es va constituir un sub-grup que, sota el nom d���Ars Combinatoria, hatreballat en la investigaci�� de la impressi�� digital sobre diferents suports.Aquest equip investigador est�� format per les professores M.Merc�� Casanovas, Cristina Past�� iEva Vila (col��laboradora) , totes elles vinculades a la pr��ctica i la doc��ncia del gravat, la litografia ila serigrafia .L���inter��s i la dedicaci�� per aquestes disciplines ha anat ampliant-se i creixent amb l���aportaci�� delsmitjans digitals, que han suposat un canvi en el format, en el projecte i en la concepci�� de l���obra.Per dur a terme aquesta recerca, hem rebut el suport de l���empresa barcelonina EGM Laboratoriscolor, especialitzada en la impressi�� digital d���alta resoluci��.Des d���aleshores s���ha seguit una investigaci�� profunda sobre les diferents possibilitats de laimpressi�� digital damunt suports convencionals i no convencionals. Tota una recerca que, fins al moment, s���ha concretat en tres exposicions, dues de col��lectives i una d���individual, que mostren els resultats obtinguts.

Combining digital elevation model analysis and run-out modeling to characterize hazard posed by a potentially unstable rock slope at Turtle Mountain, Alberta, Canada

Turtle Mountain in Alberta, Canada has become an important field laboratory for testing different techniques related to the characterization and monitoring of large slope mass movements as the stability of large portions of the eastern face of the mountain is still questionable. In order to better quantify the volumes potentially unstable and the most probable failure mechanisms and potential consequences, structural analysis and runout modeling were preformed. The structural features of the eastern face were investigated using a high resolution digital elevation model (HRDEM). According to displacement datasets and structural observations, potential failure mechanisms affecting different portions of the mountain have been assessed. The volumes of the different potentially unstable blocks have been calculated using the Sloping Local Base Level (SLBL) method. Based on the volume estimation, two and three dimensional dynamic runout analyses have been performed. Calibration of this analysis is based on the experience from the adjacent Frank Slide and other similar rock avalanches. The results will be used to improve the contingency plans within the hazard area.

Estat��stica multivariada aplicada �� diminui����o do n��mero de preditores no mapeamento digital do solo

O objetivo deste trabalho foi avaliar a possibildade de se gerar um menor conjunto de preditores n��o correlacionados e potencialmente aplic��veis ao mapeamento digital de solos, pelo uso da estat��stica multivariada. Os atributos de terreno, eleva����o, declividade, dist��ncia �� drenagem, curvatura planar, curvatura de perfil, radia����o relativa dispon��vel, logaritmo natural da ��rea de contribui����o, ��ndice de umidade topogr��fica e capacidade de transporte de sedimento, foram transformados pelo m��todo Varimax nas vari��veis: altimetria, hidrologia e curvatura. Essa transforma����o representou uma concentra����o de 65,57% da variabilidade dos dados originais nas tr��s novas componentes. As novas vari��veis possibilitam o emprego de menor quantidade de dados nos modelos preditivos, al��m do fato de serem n��o correlacionados. A rota����o Varimax permite que a rela����o com o ambiente de forma����o do solo seja explicitamente inserida nos modelos preditivos.

Fertility preservation in cancer patients. Review of the French speaking part of Switzerland and recommendations for different situations.

Due to constant progress in oncology, survival rates of patients (children and adults) with cancer are increasing. Consequently, the reproductive future of young cancer patients needs to be addressed carefully. Fertility preservation techniques are available and issues such as the time available for fertility treatments, patients' age, presence of a partner and patients' personal wishes have to be considered. In Switzerland, a first therapeutic network (R��seau Romand de Cancer et Fertilit��), was created in the French speaking part of Switzerland in 2006. Since 2010, a global Swiss network (FertiSave) has been created. The goal of these networks is to maximise the safety and efficacy of fertility preservation options offered to cancer patients without compromising their oncological prognosis. Patients' needs have to be identified, the therapeutic options evaluated rapidly and the optimal treatment promptly implemented in these urgent situations. This article reviews the fertility preservation options currently available and makes recommendations for different specific cancer situations, consistent with the latest scientific evidence and in general agreement with international recommendations.

Creative and Multidisciplinary Etching in the Digital Age

In our capacity as creative artists, researchers and fine arts professors, most part of our activity focuses on the relationships between people and creativity, technology, and resources, and, most frequently, what we aim to offer are new enjoyable and subversive ways of interacting with these three fields. As art teachers, we ask 'why and how' to teach dynamic bearing in mind that digital technology will undoubtedly impact on contemporary art practice.

Development and Evaluation of a Portable Device for Measuring Curling and Warping in Concrete Pavements, 2016

Portland cement concrete (PCC) pavement undergoes repeated environmental load-related deflection resulting from temperature and moisture variations across pavement depth. This has been recognized as resulting in PCC pavement curling and warping since the mid-1920s. Slab curvature can be further magnified under repeated traffic loads and may ultimately lead to fatigue failures, including top-down and bottom-up transverse, longitudinal, and corner cracking. It is therefore significant to measure the ���true��� degree of curling and warping in PCC pavements, not only for quality control (QC) and quality assurance (QA) purposes, but also for better understanding of its relationship to long-term pavement performance. Although several approaches and devices���including linear variable differential transducers (LVDTs), digital indicators, and some profilers���have been proposed for measuring curling and warping, their application in the field is subject to cost, inconvenience, and complexity of operation. This research therefore explores developing an economical and simple device for measuring curling and warping in concrete pavements with accuracy comparable to or better than existing methodologies. Technical requirements were identified to establish assessment criteria for development, and field tests were conducted to modify the device to further enhancement. The finalized device is about 12 inches in height and 18 pounds in weight, and its manufacturing cost is just $320. Detailed development procedures and evaluation results for the new curling and warping measuring device are presented and discussed, with a focus on achieving reliable curling and warping measurements in a cost effective manner.

Resolu����o espacial de um modelo digital de eleva����o definida pela fun����o wavelet

O objetivo deste trabalho foi definir a resolu����o espacial mais apropriada para representar a variabilidade da eleva����o, declividade, curvatura em perfil e ��ndice de umidade topogr��fica de um terreno, por meio de avalia����es com a transformada wavelet. Os dados utilizados no estudo t��m sua origem em tr��s transectos de 27 km, posicionados em ��reas do Planalto, Rebordo do Planalto e Depress��o Central na regi��o central do Estado do Rio Grande do Sul. As vari��veis - eleva����o, declividade, curvatura em perfil e ��ndice de umidade topogr��fica - foram derivadas de um modelo digital de eleva����o Topodata com resolu����o de 30 m. A avalia����o da resolu����o com a m��xima variabilidade foi realizada pela aplica����o da wavelet-m��e, denominada Morlet. Os resultados foram analisados a partir do isograma e do escalograma dos coeficientes wavelet e indicaram que sensores remotos com resolu����o espacial pr��xima a 32 e 40 m podem ser utilizados em pesquisas que considerem os atributos de terreno, como declividade, curvatura em perfil e ��ndice de umidade topogr��fica, ou, ainda, fen��menos ambientais correlacionados a eles. No entanto, n��o foi poss��vel estabelecer um valor conclusivo para a resolu����o espacial mais adequada para a vari��vel eleva����o.

Projecte Digital Look

Projecte de final de carrera basat en la creaci�� de 3 prototips (aplicaci�� m��bil, web i software d'escriptori) per gestionar un centre d'estudis de perruqueria. El desenvolupament ��s sempre des del punt de vista del disseny centrat en l'usuari.

Obstru����o do horizonte calculada a partir de modelo digital de eleva����o

O objetivo deste trabalho foi avaliar a exatid��o do c��lculo da obstru����o do horizonte, a partir de um modelo digital de eleva����o (MDE), em diferentes situa����es topogr��ficas. O material utilizado incluiu um MDE dispon��vel para a regi��o da Serra Ga��cha, RS, receptores GPS, c��mera digital, lente grande‑angular e os programas Idrisi, Arcview/ArcGIS e Solar Analyst. Foram adquiridas fotografias hemisf��ricas, e coletadas as coordenadas de 16 locais na ��rea de estudo. As coordenadas e o MDE foram utilizados para calcular a obstru����o do horizonte com uso do algoritmo Solar Analyst. Foram comparadas a fra����o aberta do c��u calculada e a obtida pelas fotografias hemisf��ricas. O coeficiente de determina����o foi de 0,8428, tendo-se observado superestimativa m��dia de 5,53% da fra����o aberta do c��u. Os erros s��o atribu��dos principalmente �� obstru����o pela vegeta����o, que n��o pode ser identificada pelo MDE. A obstru����o do horizonte, causada pelo relevo na Serra Ga��cha, pode ser calculada satisfatoriamente pelo Solar Analyst, a partir de um MDE interpolado de cartas topogr��ficas na escala 1:50.000.

Modelos de eleva����o para obten����o de atributos topogr��ficos utilizados em mapeamento digital de solos

O objetivo deste trabalho foi avaliar modelos digitais de eleva����o (MDE), obtidos por diferentes fontes de dados, e selecionar um deles para derivar vari��veis morfom��tricas utilizadas em mapeamento digital de solos. O trabalho foi realizado na Bacia Guapi‑Macacu, RJ. Os dados prim��rios utilizados nos modelos gerados por interpola����o (MDE‑carta e MDE‑h��brido) foram: curvas de n��vel, drenagem, pontos cotados e dados de sensor remoto transformados em pontos. Utilizaram-se, na compara����o, modelos obtidos por sensor remoto e por aerorrestitui����o (MDE SRTM e MDE IBGE). Todos os modelos apresentaram resolu����o espacial de 30 m. A avalia����o dos modelos de eleva����o foi baseada na an��lise de: atributos derivados (declividade, aspecto e curvatura); depress��es esp��rias; compara����o entre fei����es derivadas a partir dos modelos e as originais, oriundas de cartas planialtim��tricas; e an��lise das bacias de contribui����o derivadas. O modelo digital de eleva����o h��brido apresenta qualidade superior �� dos demais modelos.

Diagnose nutricional de nitrog��nio em folhas de feijoeiro pela an��lise digital de imagens

O objetivo deste trabalho foi avaliar o uso da an��lise digital de imagens na diagnose nutricional de N no feijoeiro. Foram avaliados quatro tratamentos, em que se combinaram duas doses de N e de P aplicadas ao solo. Na emiss��o de vagens, determinou-se o ��ndice de clorofila Falker, digitalizaram-se as imagens dos trif��lios e determinou-se o teor foliar de N. Nas imagens, foi atribu��da uma nota com o programa AFSoft, baseada na ��rea ocupada por padr��es de verde. O teor foliar de N correlacionou-se ao ��ndice de clorofila Falker e �� nota atribu��da com o AFSoft, mas a correla����o entre o ��ndice de clorofila e a nota AFSoft foi superior.

La influencia del g��nero en la cultura digital del estudiantado universitario.

The main goal of this paper is to analyse gender differences in the use of ICT among university students. We present the results of a study about the uses and the perception in relation to ICT in everyday life and in academia. The study is based on a statistical simple of 1042 students from 5 different universities. The results show gender differences, both with respect to use as their perception of technology.

Beyond the Net Generation debate: A comparison between digital learners in face-to-face and virtual universities

This paper is based on the hypothesis that the use of technology to support learning is not related to whether a student belongs to the Net Generation, but that it is mainly influenced by the teaching model. The study compares behaviour and preferences towards ICT use in two groups of university students: face-to-face students and online students. A questionnaire was applied to asample of students from five universities with different characteristics (one offers online education and four offer face-to-face education with LMS teaching support).

From institutional repositories to personal collections of learning resources

Institutional digital repositories are a basic piece to provide preservation and reutilization of learning resources. However, their creation and maintenance is usually performed following a top-down approach, causing limitations in the search and reutilization of learning resources. In order to avoid this problem we propose to use web 2.0 functionalities. In this paper we present how tagging can be used to enhance the search and reusability functionalities of institutional learning repositories as well as promoting their usage. The paper also describes the evaluation process that was performed in a pilot experience involving open educational resources.