Search results for "Sign"
showing 10 items of 14733 documents
Strategic Design Towards Platform Collaboration in The Newspaper Industry: A Design Science Research Study
2020
The newspaper industry is challenged by unsustainable business models. To stabilize dwindling revenue streams, publishers opted for digital subscriptions as one avenue for generating additional revenue streams. Large publishers have indeed benefited from rising subscription numbers. However, smaller publishers are challenged to achieve the same results. Some of the root causes are high churn rates, adoption costs and lock-in effects of subscription services. News aggregator platforms may promise newspaper publishers a large pool of paying readers. But platform fees and the loss of direct customer relationships enact commercial barriers among publishers. This study proposes design science re…
Sémiotique et critique de la culture
2017
Par rapport aux autres sciences humaines et à la philosophie, la sémiotique semble avoir quelque chose en plus, une capacité méta-critique. En effet, en tant qu’étude, à tous niveaux, du discours social en général, elle est également en mesure d’analyser de façon critique, grâce à ses modèles d’analyse, le discours scientifique lui-même, ainsi que le discours philosophique, en explicitant ainsi leurs conditions de possibilité et, donc, les limites historiques que rencontrent leurs fréquentes prétentions à l’universalité. Et cela, en soumettant également son propre discours à cette exigence critique. La critique sémiotique de la culture est donc toujours une mise en crise, un exercice de sus…
Marcadores clínicos y estudio de estilo de vida en el seguimiento de la enfermedad celíaca
2020
La enfermedad celíaca (EC) es un trastorno sistémico, crónico y de origen autoinmune que afecta a individuos genéticamente susceptibles. Se presenta con una gran variedad de signos, síntomas y enfermedades asociadas, incluso también puede cursar de manera asintomática, lo que hace difícil su diagnóstico. La EC se diagnostica con mayor frecuencia en las mujeres y a edades más tempranas que a los hombres. Debido a la gran hererogeneidad en la forma de presentación de la EC, se ha llevado a cabo una revisión sistemática, donde estudios recientes, muestran una variación del espectro clínico de la enfermedad en función de la edad. En niños pequeños predomina la forma clásica con síntomas como di…
Intensivsykepleierens vurdering og tilrettelegging av søvn : en kvalitativ studie om intensivsykepleierens erfaring med vurdering og tilrettelegging …
2016
Masteroppgave i spesialsykepleie – Universitetet i Agder 2016 Background: Previous studies have showed that lack of sleep makes ICU patients stressed. In addition, other studies have showed that the ICU nurses’ subjective assessment of ICU patients’ sleep have low correspondence with objective data, like polysomnography. This shows the need for further studies related to the assessment and facilitation of sleep that the ICU nurses are doing. Aim: The aim of this study is to investigate the ICU nurse’s experience of assessment and facilitation of the ICU patient’s sleep, and how sleep can affect the course of the disease. Method: The study has a qualitative approach and in-depth interviews w…
How many longitudinal covariate measurements are needed for risk prediction?
2014
Abstract Objective In epidemiologic follow-up studies, many key covariates, such as smoking, use of medication, blood pressure, and cholesterol, are time varying. Because of practical and financial limitations, time-varying covariates cannot be measured continuously, but only at certain prespecified time points. We study how the number of these longitudinal measurements can be chosen cost-efficiently by evaluating the usefulness of the measurements for risk prediction. Study Design and Setting The usefulness is addressed by measuring the improvement in model discrimination between models using different amounts of longitudinal information. We use simulated follow-up data and the data from t…
Model selection using limiting distributions of second-order blind source separation algorithms
2015
Signals, recorded over time, are often observed as mixtures of multiple source signals. To extract relevant information from such measurements one needs to determine the mixing coefficients. In case of weakly stationary time series with uncorrelated source signals, this separation can be achieved by jointly diagonalizing sample autocovariances at different lags, and several algorithms address this task. Often the mixing estimates contain close-to-zero entries and one wants to decide whether the corresponding source signals have a relevant impact on the observations or not. To address this question of model selection we consider the recently published second-order blind identification proced…
T9+HUD: Physical Keypad and HUD can Improve Driving Performance while Typing and Driving
2016
We introduce T9+HUD, a text entry method designed to decrease visual distraction while driving and typing. T9+HUD combines a physical 3x4 keypad on the steering wheel with a head-up-display (HUD) for projecting output on the windshield. Previous work suggests this may be a visually less demanding way to type while driving than the popular case which requires shifts of visual attention away from the road. We present a prototype design and report first results from a controlled evaluation in a driving simulator. While driving, the T9+HUD text entry rate was equal compared to a dashboard-mounted touchscreen device, but it reduced lane deviations by 70%. Furthermore, there was no significant di…
Acoustic detection and classification of river boats
2011
We present a robust algorithm to detect the arrival of a boat of a certain type when other background noises are present. It is done via the analysis of its acoustic signature against an existing database of recorded and processed acoustic signals. We characterize the signals by the distribution of their energies among blocks of wavelet packet coefficients. To derive the acoustic signature of the boat of interest, we use the Best Discriminant Basis method. The decision is made by combining the answers from the Linear Discriminant Analysis (LDA) classifier and from the Classification and Regression Trees (CART) that is also accompanied with an additional unit, called Aisles, that reduces fal…
How Students Get Going : Triggers for Students’ Learning in Project-Based Education
2018
Repeatedly documented positive student responses to project-based learning during its decades-long tradition in CS attest to the effectiveness of learning by doing. Support for reflective learning nevertheless continues to be a topic worth studying because the intensity of project work together with a high technical orientation among CS students often complicate reflective practice. A critical incident-inspired assignment was added to a project-based course to support reflective practice in spring 2017. In a previous study, the authors analyzed how students approached the assignment and whether they found it supportive for learning. The present study content-analyses the situations that tri…
Wastewater treatment: New insight provided by interactive multiobjective optimization
2011
In this paper, we describe a new interactive tool developed for wastewater treatment plant design. The tool is aimed at supporting the designer in designing new wastewater treatment plants as well as optimizing the performance of already available plants. The idea is to utilize interactive multiobjective optimization which enables the designer to consider the design with respect to several conflicting evaluation criteria simultaneously. This is more important than ever because the requirements for wastewater treatment plants are getting tighter and tighter from both environmental and economical reasons. By combining a process simulator to simulate wastewater treatment and an interactive mul…