The Relationship Between a Student’s Success in First-Semester General Chemistry and Their Mathematics Fluency,Profile, and Performance on Common Questions

Journal of Science Education and Technology - In an effort to investigate the factors that lead to success in general chemistry, the Math-Up Skills Test (MUST) and common questions were used along...     

Policy aspects of privacy and access

Abstract

This paper first reviews the development of record‐keeping privacy, together with its legislative attention and major studies of it. It then identifies new dimensions of personal privacy and illustrates them with electronic mail. It notes the intricacy of policy issues arising from large‐scale use of computers and communications for systems that provide a variety of services, many of them oriented toward the individual. The legislative awkwardness of providing protection to the individual and the role of the federal government in the entire issue is described. Other systems that will create new privacy issues are touched on. The “privacy future” is discussed in terms of access‐without‐action, information representation, information protection, exploitation of information such as computer matching, the large‐scale availability of personal information to many people, and the widespread appearance of systems that deal with information about people but for other than record‐keeping purposes. Finally, two broad policy issues are identified: (1) In an information‐intensive future, how can the country establish societally acceptable usage patterns for information but at the same time provide protection for its citizens? (2) How can the country create an appropriate mechanism for addressing such a pervasive and complex issue?     

RNA Secondary Structure Prediction by Using Discrete Mathematics: An Interdisciplinary Research Experience for Undergraduate Students

The focus of this Research Experience for Undergraduates (REU) project was on RNA secondary structure prediction by using a lattice walk approach. The lattice walk approach is a combinatorial and computational biology method used to enumerate possible secondary structures and predict RNA secondary structure from RNA sequences. The method uses discrete mathematical techniques and identifies specified base pairs as parameters. The goal of the REU was to introduce upper-level undergraduate students to the principles and challenges of interdisciplinary research in molecular biology and discrete mathematics. At the beginning of the project, students from the biology and mathematics departments of a mid-sized university received instruction on the role of secondary structure in the function of eukaryotic RNAs and RNA viruses, RNA related to combinatorics, and the National Center for Biotechnology Information resources. The student research projects focused on RNA secondary structure prediction on a regulatory region of the yellow fever virus RNA genome and on an untranslated region of an mRNA of a gene associated with the neurological disorder epilepsy. At the end of the project, the REU students gave poster and oral presentations, and they submitted written final project reports to the program director. The outcome of the REU was that the students gained transferable knowledge and skills in bioinformatics and an awareness of the applications of discrete mathematics to biological research problems.     

汪星人的控诉

我们人类可以有很多朋友,但我们的宠物们就只有我们一个。失去它们,我们不会活不下去,但是它们失去了我们,它们所面临的未来是无比残酷的。所以要么就不养,养了就要负起责任。小时候,我总会做些滑稽古怪的动作把你逗得哈哈大笑。即使我把你的许多鞋子和抱枕都撕咬抓破,你还是会把我称为你的孩子,我成了你最好的朋友。每次我"使坏"的时候,你都会向我摇摇手指,问道:"你怎么能这样做呢?"