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Thessaloniki, Greece

Anatolia College , or sometimes the American College , is a private, non-profit, educational institution located in Pylaia, a suburb of Thessaloniki, Greece. The school has three subdivisions: Anatolia Elementary, Anatolia High School and the American College of Thessaloniki, , the tertiary division of the institution.Students achieved 100% university placement in 2008 and 2010. It is the only school in Greece with a full boarding program and retains Greece's most extensive scholarship program. Wikipedia.

Zogkas A.,Alexander Technological Educational Institute of Thessaloniki | Kirsanidou I.,Alexander Technological Educational Institute of Thessaloniki | Korfitis C.,401 General Military Hospital | Kemanetzi C.,Aristotle University of Thessaloniki | And 2 more authors.
IFMBE Proceedings

We present data from the development and initial testing of a novel portable dermatological scanner which offers non-invasive data acquisition from multiple dry electrodes placed on the patient’s skin. Such objective, fast and easy to obtain diagnostic data are currently not available during the patient’s first visit to the point of care. Once additional clinical research is performed to validate the output data of such a tool, associating it to medical diagnosis statistics (biopsy- verified data), it could enrich the information available to Dermatologists early in the diagnostic process. The interpretation of such objective measurement data may be particularly valuable in cases of suspicious angiogenesis which could be an early indication of malignancy. The scanner is based on electrical impedance tomography, a promising non-invasive, radiation- free and portable imaging technique. It is designed for clinical and outdoor operation and the associated translational software does not require specialized training for the operator. Initial testing results of the device are promising, suggesting it can specifically distinguish between the presence and absence of a nevus in the area of skin being scanned. Further testing is planned involving the detection of neoplasia, particularly early stage melanoma. © Springer International Publishing Switzerland 2016. Source

Rousidis D.,University of Alcala | Rousidis D.,Alexander Technological Educational Institute of Thessaloniki | Garoufallou E.,Alexander Technological Educational Institute of Thessaloniki | Balatsoukas P.,University of Manchester | And 3 more authors.
Communications in Computer and Information Science

Social media have transformed the way modern science is communicated. Although several studies have been focused on the use of social media for the dissemination of scientific knowledge and the measurement of the impact of academic output, we know very little about how academics cite social media in their publications. In order to address this gap, a content analysis was performed on a sample of 629 journal articles in medical informatics. The findings showed the presence of 109 citations to social media resources, the majority of which were blogs and wikis. Social media citations were used more frequently to support the literature review section of articles. However, a fair amount of citations was used in order to document various aspects of the methodology section, such as the data collection and analysis process. The paper concludes with the implications of these findings for metadata design for bibliographic databases (like PubMed and Medline). © Springer International Publishing Switzerland 2013. Source

Fotiadis D.A.,Aristotle University of Thessaloniki | Fotiadis D.A.,Technological Education Institution of Western Macedonia | Astaras A.,The American College of Thessaloniki | Astaras A.,Aristotle University of Thessaloniki | And 3 more authors.
IEEE Journal of Biomedical and Health Informatics

This paper presents a novel method for tracking the position of a medical instrument's tip. The system is based on phase locking a high frequency signal transmitted from the medical instrument's tip to a reference signal. Displacement measurement is established having the loop open, in order to get a low frequency voltage representing the medical instrument's movement; therefore, positioning is established by means of conventional measuring techniques. The voltage-controlled oscillator stage of the phase-locked loop (PLL), combined to an appropriate antenna, comprises the associated transmitter located inside the medical instrument tip. All the other low frequency PLL components, low noise amplifier and mixer, are located outside the human body, forming the receiver part of the system. The operating details of the proposed system were coded in Verilog-AMS. Simulation results indicate robust medical instrument tracking in 1-D. Experimental evaluation of the proposed position tracking system is also presented. The experiments described in this paper are based on a transmitter moving opposite a stationary receiver performing either constant velocity or uniformly accelerated movement, and also together with two stationary receivers performing constant velocity movement again. This latter setup is implemented in order to demonstrate the prototype's accuracy for planar (2-D) motion measurements. Error analysis and time-domain analysis are presented for system performance characterization. Furthermore, preliminary experimental assessment using a saline solution container to more closely approximate the human body as a radio frequency wave transmission medium has proved the system's capability of operating underneath the skin. © 2013 IEEE. Source

Keramaris V.A.,The American College of Thessaloniki | Keramaris V.A.,Kingston University | Danas K.,Kingston University
Studies in Health Technology and Informatics

Current research in health informatics should provide the techniques and tools that will enable the development of an efficient hospital information ecosystem. The different information systems (IS) will be able to efficiently communicate with each other and provide a patient oriented environment. It is thus important to provide a clear understanding of this ecosystem during the analysis phase. The solution is to develop a hospital information systems ontology that will provide the infrastructure for a clear understanding of this ecosystem and thus lead to the development of systems that will be able to work efficiently with each other. This ontology is developed here and its value is demonstrated through a case study. © 2014 The authors and IOS Press. All rights reserved. Source

Mavridis N.,Greek National Center For Scientific Research | Pierris G.,Greek National Center For Scientific Research | Gallina P.,University of Trieste | Moustakas N.,Aristotle University of Thessaloniki | Astaras A.,The American College of Thessaloniki
Proceedings of the 17th International Conference on Advanced Robotics, ICAR 2015

Joystick-based teleoperation is a dominant method for remotely controlling various types of robots, such as excavators, cranes, and space telerobotics. Our ultimate goal is to create effective methods for training and assessing human operators of joystick-controlled robots. Towards that goal, an extensive study consisting of a total of 38 experimental subjects on both simulated as well as a physical robot, using either no feedback or auditory feedback, has been performed. In this paper, we present the complete experimental setup and we report only on the 18 experimental subjects teleoperating the simulated robot. Multiple observables were recorded, including not only joystick and robot angles and timings, but also subjective measures of difficulty, personality and usability data, and automated analysis of facial expressions and blink rate of the subjects. Our initial results indicate that: First, that the subjective difficulty of teleoperation with auditory feedback has smaller variance as compared to teleoperation without feedback. Second, that the subjective difficulty of a task is linearly related with the logarithm of task completion time. Third, we introduce two important indicators of operator performance, namely the Average Velocity of Robot Joints (AVRJ), and the Correct-to-Wrong-Joystick Direction Ratio (CWJR), and we show how these relate to accumulated user experience and with task time. We conclude with a forward-looking discussion including future steps. © 2015 IEEE. Source

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