Organic molecules dominate the biological world, yet many of life’s critical molecular reactions depend on metals for catalysis. Sabeeha Merchant, a professor of biochemistry at the University of California, Los Angeles (UCLA), studies how cells keep track of crucial trace nutrients like iron and copper. Her early work on Chlamydomonas reinhardtii, a single-celled alga that, like all plants, pr...

The paper reveals the potential and importance of training specialists in field maritime river navigation. trends modern educational process applicable to institutions transport industry are considered. psychophysiological health behavior among students considered, analysis available studies on state officers merchant navy is also carried out. research revealed data important changes positive d...

---------------------------------------------------------------------ABSTRACT---------------------------------------------------------------In this article e-payment scheme by mobile machine is considered. The requirements for a mobile machine in e-payment are presented, particularly when merchant employing accounts for payments and when using advertising. In the proposed scheme we will use the...

Dünyada sigortacılığın ilk örnekleri denizcilikte kullanılmıştır. Özellikle deniz sigortalarının günümüzde kullanılmakta olduğu anlamıyla Edward Lloyd tarafından Londra’da işletilmekte olan kahvehanede başlamış ve sigortaları denildiğinde akla gelen pazar Lloyd’s olmaktadır. Armatör işletmeleri en önemli varlıkları milyonlarca ABD Doları değerindeki gemileri her seferlerinde ya da limanlarda bi...

We consider the problem of a travelling merchant that makes money by buying commodities where they are cheap and selling them in other places where he can make a profit. The merchant ships commodities of his own choice in a van of fixed capacity. Given the prices of all the commodities in all of the places, and the cost of driving from one place to another, the problem the merchant faces each d...

Anonymous electronic payment systems are regarded as essential for the protection of the privacy of consumers participating in electronic transactions. In this paper, we present an electronic payment scheme which allows regular customers not only to get special rates from the merchant but also to be kept anonymous to the merchant.