2006 International Conference on Information Technology: Research and Education

Computing paradigms have historically evolved through massive disruptive changes: from mainframe-computing to desktop-computing, to Internet-computing. It is thus not unreasonable to ask whether Internet-computing may be similarly transformed, and if so, what might be the characteristics of post-Internet computing. This presentation considers these questions in terms of three concomitant technolog... View full abstract»

In this paper, from a viewpoint of information technology, we present a case study of a loosely coupling network survey system. The survey system was designed to understand the in-service educational demands for the teachers in Taiwan, R.O.C.. Two types of the questionnaires were used based on two different viewpoints: school administrative and teacher personal viewpoints. Each of questionnaire ty... View full abstract»

For the past seven years (since the 1999 school year), a program called Haifa-Net has been in place in schools throughout the city of Haifa. In the framework of the program, some 60 school websites and some 150 ICT (Information and Communication Technology) environments learning were constructed. Each such learning environment constitutes a website, or part of a website, that contains academic mat... View full abstract»

The online tutoring system CAPA was implemented at Afeka College in the academic year 2000-2001 in calculus based physics courses. It was used also in the academic year 2001-2002 and was very successful in improving understanding and achievements of the students. The paper describes the system features and the case study of its implementation. Lessons drawn from use of the CAPA system are discusse... View full abstract»

We have developed an Intelligent Tutoring System (ITS) for intelligent use of databases by students. The goal of the software is to improve students' abilities in three areas: a. the ability to provide a correct description of the search query in the databases; b. the capacity to understand the results of the search query and reach conclusions according to these results; c. to broaden and deepen k... View full abstract»

An inpainting technique for images and videos is introduced. The idea is to use fluid equations - the Navier-Stokes equations- as a PDE based method for the image processing. The representation of the Navier-Stokes in terms the of streamfunction eases the implementation and the analysis of the method. We applied the new method to color images and show some numerical results. View full abstract»

Understanding image information content was always a critical issue in every image handling or processing task. Up to now, the need for it was met by human knowledge that a domain expert or a system supervisor have contributed to a given application task. The advent of the Internet has drastically changed this state of affairs. Internet sources of visual information are diffused and dispersed over... View full abstract»

Three cepstral parametric methods were compared for speech recognition application: Real Cepstrum, Mel-Frequency Cepstrum and a new method Maximum Likelihood Cepstrum. The cepstral parameters were extracted from training and testing sets that, consisted of part of the TI-DIGIT database. The parameter extraction (both stationary and dynamics) was performed by the HTK engine and Matlab scripts. Trai... View full abstract»

The Argaman virtual reality software suite is an innovative, unique solution providing an immersive virtual reality therapeutic system for treatment of PTSD (post- traumatic stress disorder) in people who witnessed or suffered terror attacks or other traumatic experiences. The flexible design of the tool enables custom reconstruction of the scenery as well as specific events for each patient. The ... View full abstract»

A novel magnetic resonance based technology was developed to address the drawbacks of conventional magnetic resonance imagers in coronary applications. Intravascular MRI (IVMRI) is the first implementation of the technology and is designed for use in coronary catheterization procedures. IVMRI exploits the unique magnetic field characteristics inherent in the self contained, miniature magnet and co... View full abstract»

Summary form only given. The aim of this project was to build a portable system designed to monitor on a daily basis the severity of pulmonary edema in chronic heart failure (CHF) patients. As for today, the current methods for monitoring pulmonary edema severity in these patients are inaccurate (weighing), or involve ionizing radiation (CT imaging). The proposed system is based on the principles ... View full abstract»

Currently, the most widely used tool for non-invasive diagnosis of ischemic heart disease (IHD) is exercise electrocardiography. The sensitivity of this methodology is known to be limited, generally considered to be between 50% and 70%, and in some studies has been reported to be even lower. In standard ECG analysis, performed in the 0.05-100Hz frequency range, detection of ischemia from the ECG i... View full abstract»

Obesity is a risk factor for asthma. The purpose of this study was to determine whether metformin, an agent used in the treatment of another obesity-related condition, type II diabetes, might have therapeutic potential for airway smooth muscle (ASM) function in obesity. View full abstract»

A mobile ad hoc network (MANET) is characterized by multi-hop wireless links, absence of a fixed infrastructure, and frequent host mobility. Frequent topology change caused by node mobility makes it a challenging problem to raise packet delivery ratio. In this paper, we propose a scheme to improve existing Ad hoc On-Demand Distance Vector (AODV) protocols by creating multiple alternate routes with... View full abstract»

A network of remote magnetic sensors is used for detection of ferromagnetic objects. The magnetic sensors are arranged in gradiometric pairs in order to cancel background noise. For an effective noise cancellation the sensors' readings are synchronized by a smart synchronization technique. Data from the sensors are transmitted via a wireless link, managed by an intelligent access protocol. The dat... View full abstract»

The need to rapidly deploy military forces in unknown areas without the ability to use existing ground-based communication infrastructure requires the use of ad-hoc communication networks. Transmission limitations motivates the use of a hierarchal routing mechanism that enables each soldier to communicate with distant soldiers using intermediate powerful nodes that hover within the transmission ra... View full abstract»

A new cross-compression metric, based on Lempel-Ziv-Welch compression, is suggested as a method for detecting programming style. In essence, the process of compression of one program is used to build a a string table which is then used to compress the text of another program. The resulting compression ratio defines a measure of coherency between the two programs. In using the metric, we define the... View full abstract»

The performance of IEEE 802.11b devices is significantly impacted by the interference from Bluetooth devices that operate in close vicinity. The paper studies and evaluates the performance of 802.11b and adaptive frequency hopping enabled Bluetooth in a more realistic channel model. The probability of error at MAC and PHY layers of 802.11b is found. We consider various cases such that when one, tw... View full abstract»

Two new approaches of studying in a distance-learning mode are proposed according to the following division of subjects: scientific and textual. The proposition treating the scientific-theoretical subjects (subsection A) is further demonstrated on theoretical formulas in Calculus in which a dynamical - visual description of the theory and its practical application are introduced. Transformation of... View full abstract»

Here flexible algorithms are used for teaching purposes in a course for beginners. Flexible algorithms have a simple notation and are multifaceted. They may be executed in a variety of orders, sequential or parallel, producing results independent of the execution order. They may be converted to sequential algorithms and to hardware block diagrams. They may also be used for giving an overall descri... View full abstract»

Marketing principles does not comply always with the pre-existing attitudes of students and even practitioners. It seems that experience and intuition often interfere with the science of marketing notion. This article addresses the difficulties arising from such interference. Tools were developed to identify students' opinions regarding central marketing topics both before and after taking the. Re... View full abstract»

Internship is an inseparable part of some curricula such as Medicine, Law, Accounting, Teaching and more disciplines, where internship is a crucial part of the curriculum. This is not the situation when it comes to technological studies such as Electronics. Is there any justification for this? This article reviews ten years experience of implementing internship at more then 130 Hi -Tech. factories... View full abstract»

In the field of speech recognition it has been shown that incorporating the dynamics of speech has increased recognition success. This concept is presented in Mel frequency cepstral coefficients (MFCC) and its derivatives which present both the static and the dynamics of the vocal tract. In this paper, a new method for capturing the dynamic features of non- stationary speech signals is presented. ... View full abstract»