climate change represents the major challenge to sudan agricultural production, economics and food security. changes in temperature, rainfalls, water availability, increased outbreak of pest and diseases, land degradation, soil erosion, shrinking of grazing and cultivate areas, ongoing desertification and the other aspects of climate change have direct significant impact on agricultural product...

background and purpose: the internet is a useful tool for developing a variety of learning experiences and as a source of information and as a means of facilitated communication between students and teachers. the aim of this research was to investigate the level of knowledge, attitudes and practice of the internet use among bachelors’ degree students in shahid beheshti school of health . method...

beekeeping as a technology package disseminated to target farmers in nigeria seems to suffer setbacks ranging from negative perception of farmers about the technology to technical contents of the package. this study therefore analyzes the technology attributes that influence non adoption of apiary technology packages in cross river state, nigeria. purposive and multistage random sampling techni...

during dental education, dental students learn how to examine patients, make diagnosis, plan treatment and perform dental procedures perfectly and efficiently. however, progresses in computer-based technologies including virtual reality (vr) simulators, augmented reality (ar) and computer aided design/computer aided manufacturing (cad/cam) systems have resulted in new modalities for instruction...

abstract human blood and blood products is the source of a wide range of medicinal products used for the treatment and prevention of a variety of injuries and disease. despite stringent routine measures and filters employed, residual pathogen infectivity remains an important challenge in the field of blood transfusion. in this article various measures and technologies that can be applied in ord...

This paper examines the effect of the 1993 Earned Income Tax Credit expansion on the labor force participation of single women by comparing the changes from before to after the expansion in the participation of women with no, one, and two or more children. Both quasi−experimental and regression−based difference−in−difference estimates from annual 1991−1998 March CPS data indicate that this expa...

Der Beitrag befasst sich mit biometrischen Authentifizierungsverfahren zwischen Wahrung von Persönlichkeitsrechten einerseits und der Eignung zum Nachweis von Authentizität im elektronischen Rechtsverkehr insbesondere bei der Verwendung elektronischer Signaturen andererseits. Ein Vergleich mit herkömmlichen Authentifizierungsmechanismen wie dem Prinzip Besitz und Wissen ergibt entscheidende Sch...

The goal of privacy metrics is to measure the degree of privacy enjoyed by users in a system and the amount of protection offered by privacy-enhancing technologies. In this way, privacy metrics contribute to improving user privacy in the digital world. The diversity and complexity of privacy metrics in the literature makes an informed choice of metrics challenging. As a result, redundant new me...