National Defence University, Pakistan

About: National Defence University, Pakistan is a education organization based out in Islamabad, Pakistan. It is known for research contribution in the topics: Context (language use) & Decision support system. The organization has 802 authors who have published 816 publications receiving 3701 citations. The organization is also known as: National Defence University of Pakistan & National Defence University Islamabad.

Model of Information Protection System Database of the Mobile Terminals Information System on the Territory of Ukraine (ISPMTU)

Abstract: This paper considers the model of the system of information protection of data base of the mobile terminals accounting information System in Ukraine (ISRMTU). The system of the customer performs the functions of automation of production processes related to the IMEI database maintenance (the IMEI code in this document is used to denote the identification codes of the mobile terminals of the GSM Standards Group, CDMA), registration of applications for the import of radio electronics and emitting devices (REFS) on the territory of Ukraine and issuing permits for the import of REFS.

Blockchain Based Secure Communication for IoT Devices in Smart Cities

Abstract: In smart city technologies we have witnessed advanced technological improvements in small computing devices, which can be connected to the Internet and named as Internet of Thing (IoT) devices, and cooperatively working complex systems. With this increased use of new technologies, the security problem is becoming more and more important because complex systems lead to unpredictable security vulnerabilities, which result in financial and private information losses. As a recently emerged technology, Blockchain was emerged as an alternative solution to security breaches of a different application environment. In contrast to the central structure used by most systems, it is preferred especially in the area of security by its distributed structure and the cryptographic hash algorithm it uses. Today, structures such as Smart Home, Smart City, Smart Environment and Smart Agriculture, which are created by using IoT are seen as active research areas with more security shortages. The reason for the security weakness in these areas arises from the hardware restriction on the IoT devices used. In the proposed system, an authorization system for IoT devices has been tried to be set up by using the distributed node structure of Blockchain system and blocks kept in these nodes. UDP (User Datagram Protocol), which uses a simple communication model without establishing a connection to the minimum protocol mechanism for communication of nodes in the system, was preferred. The communication between the nodes has been encrypted using encryption methods, thus creating a secure environment.

Universal amplitude ratios for three-dimensional self-avoiding walks

Abstract: We have calculated exactly the number, the mean-square end-to-end distance, the mean-square radius of gyration, and the mean-square distance of a monomer from the origin for n-step self-avoiding walks on the simple cubic, diamond, body-centred cubic and face-centred cubic lattices, respectively, up to 20, 30, 16 and 13 steps by a computer. Two universal amplitude ratios are estimated.

Physical Fitness Profiles of Young Men Associations Between Physical Fitness, Obesity and Health

Abstract: Obesity in youth has increased during the last 10 years in Western countries. Several studies have investigated physical activity and its effects on obesity and health, showing that regular physical activity combined with improved physical fitness reduces the risk of obesity and several metabolic problems (e.g. diabetes mellitus, metabolic syndrome, heart disease) and also improves overall health. However, there is only limited scientific information available concerning the changes in the physical fitness profiles of youth. It is obvious that only slight changes observed in endurance-type physical activity can also be observed in aerobic capacity. Today and in the future, a major public health concern for teenage and young adults is the combination of increasing body fatness together with decreasing physical fitness. In order to evaluate overall fitness level, it is particularly essential to examine both aerobic and neuromuscular fitness. Therefore, in clinical practice work and health behaviour education, a person's physical fitness should be measured more frequently with various measures. Furthermore, population-based surveys should be combined with regular measurement of physical fitness to study sedentary lifestyles, particularly in young people. This article presents a review of current physical fitness profiles of male children, adolescents and young adults, which hopefully initiates further studies in this relevant scientific field. In addition, the importance of physical fitness level is evaluated in relation to obesity and health. Collectively, studies examining physical fitness profiles of young men suggest a disturbing worldwide trend of decreased aerobic fitness and increased obesity. Continued efforts to foster improved physical fitness and healthy lifestyles should be encouraged to combat these trends. Such efforts should include frequent and objective assessment of physical fitness rather than solely relying on subjective assessment of physical activity.

Antiviral applications of RNAi for coronavirus.

Abstract: Until the appearance of severe acute respiratory syndrome (SARS), caused by the SARS coronavirus (SARS-CoV) in early 2003, coronavirus infection was not considered to be serious enough to be controlled by either vaccination or specific antiviral therapy. It is now believed that the availability of antiviral drugs effective against SARS-CoV will be crucial for the control of future SARS outbreaks. Recently, RNA interference has been successfully used as a more specific and efficient method for gene silencing. RNA interference induced by small interfering RNA can inhibit the expression of viral antigens and so provides a new approach to the therapy of pathogenic viruses. This review provides an overview of current information on coronavirus and the application of small interfering RNA in viral therapeutics, with particular reference to SARS-CoV.