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This article presents the first results of using an Augmented Reality (AR) tool, designed to support tutoring sessions in multi-variate calculus. The tool is used either in a face-to-face setting in which the instructor and the students are collocated or in a distance setting, in which the instructor and students are physically in remote places. The tool(More)
We present an approach to anomaly detection based on the construction of a Hidden Markov Model trained on processor workload data. Based on processor load measurements, a HMM is constructed as a model of the system normal behavior. Any observed sequence of processor load measurements that is unlikely generated by the HMM is then considered as an anomaly. We(More)
STUDY OBJECTIVES Patients with postural tachycardia syndrome (POTS) commonly complain of fatigue, unrefreshing sleep, daytime sleepiness and diminished quality of life. The study objective was to assess sleep quality in POTS patients using wrist actigraphy. DESIGN Prospective study with control group. METHODS Patients with POTS (n = 36) and healthy(More)
The copyright law of the United States (title 17, U.S. Code) governs the making of photocopies or other reproductions of copyrighted material. Any copying of this document without permission of its author may be prohibited by law. Abstract We consider optimal design problems of systems governed by suitable discretizations of non-linear partial differential(More)
The copyright law of the United States (title 17, U.S. Code) governs the making of photocopies or other reproductions of copyrighted material. Any copying of this document without permission of its author may be prohibited by law. Abstract The problem of increasing the efficiency of the optimization process for nonlinear structures has been examined by(More)
The choice of a venous access system to provide safe blood collection and reliable analytical results for that sample is of paramount importance in any accident and emergency department. The objective of this study was to identify the factors associated with haemolysis in venous blood samples, where the variables studied were: type of venipuncture (needle(More)
The objective of the present paper is to illustrate the use of the commercially available mathematical package MAPLE ® and other computer software for educational purposes. The problem chosen to illustrate the use of the software is the problem of forced vibrations of an elastic plate. The presentation of the topic is made in a simple manner to make it(More)
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