Chemistry

published or submitted for publicatio

Keywords given by authors of scientific articles in database descriptors

This paper analyses the keywords given by authors of scientific articles and the descriptors assigned to the articles in order to ascertain the presence of the keywords in the descriptors. 640 INSPEC, CAB abstracts, ISTA and LISA database records were consulted. After detailed comparisons it was found that keywords provided by authors have an important presence in the database descriptors studied, since nearly 25% of all the keywords appeared in exactly the same form as descriptors, with another 21% while normalized, are still detected in the descriptors. This means that almost 46% of keywords appear in the descriptors, either as such or after normalization. Elsewhere, three distinct indexing policies appear, one represented by INSPEC and LISA (indexers seem to have freedom to assign the descriptors they deem necessary); another is represented by CAB (no record has fewer than four descriptors and, in general, a large number of descriptors is employed; in contrast, in ISTA, a certain institutional code towards economy in indexing, since 84% of records contain only four descriptors

A History of Cluster Analysis Using the Classification Society's Bibliography Over Four Decades

The Classification Literature Automated Search Service, an annual bibliography based on citation of one or more of a set of around 80 book or journal publications, ran from 1972 to 2012. We analyze here the years 1994 to 2011. The Classification Society's Service, as it was termed, has been produced by the Classification Society. In earlier decades it was distributed as a diskette or CD with the Journal of Classification. Among our findings are the following: an enormous increase in scholarly production post approximately 2000; a very major increase in quantity, coupled with work in different disciplines, from approximately 2004; and a major shift also from cluster analysis in earlier times having mathematics and psychology as disciplines of the journals published in, and affiliations of authors, contrasted with, in more recent times, a "centre of gravity" in management and engineering.Comment: 23 pages, 9 figure

A guided tour of asynchronous cellular automata

Research on asynchronous cellular automata has received a great amount of attention these last years and has turned to a thriving field. We survey the recent research that has been carried out on this topic and present a wide state of the art where computing and modelling issues are both represented.Comment: To appear in the Journal of Cellular Automat

Annotated bibliography of software engineering laboratory literature

An annotated bibliography is presented of technical papers, documents, and memorandums produced by or related to the Software Engineering Laboratory. The bibliography was updated and reorganized substantially since the original version (SEL-82-006, November 1982). All materials were grouped into eight general subject areas for easy reference: (1) The Software Engineering Laboratory; (2) The Software Engineering Laboratory: Software Development Documents; (3) Software Tools; (4) Software Models; (5) Software Measurement; (6) Technology Evaluations; (7) Ada Technology; and (8) Data Collection. Subject and author indexes further classify these documents by specific topic and individual author

Annotated bibliography of software engineering laboratory literature

An annotated bibliography of technical papers, documents, and memorandums produced by or related to the Software Engineering Laboratory is given. More than 100 publications are summarized. These publications cover many areas of software engineering and range from research reports to software documentation. This document has been updated and reorganized substantially since the original version (SEL-82-006, November 1982). All materials have been grouped into eight general subject areas for easy reference: the Software Engineering Laboratory; the Software Engineering Laboratory-software development documents; software tools; software models; software measurement; technology evaluations; Ada technology; and data collection. Subject and author indexes further classify these documents by specific topic and individual author

A Framework for e-Commerce Implementation: Nigeria a Case Study

The advent of the Internet has transformed the business environment in no small measure and has influenced the ways and manner businesses are transacted. This platform has brought about enhanced electronic and mobile business transactions. However, the advent of e-Commerce, m-Commerce or i-Commerce has placed a premium on the participating organisations or nations in terms of provision of the basic infrastructure for a secure, seamless and trusted business environment through the electronic media. This paper presents an exploratory study of the prospects of e-Commerce implementation and the factors inhibiting its growth. A set of questionnaire was designed, administered and analysed based on political, economic, social and technological (PEST) analysis. The PEST analysis is to help review the current practices with a view to developing a framework for Nigeria and other developing nations in Africa. Findings revealed that the Automatic Teller Machine (ATM) is the most widely used medium of e-Payment in Nigeria, which is not very suitable for e-Commerce implementation. Similarly, the Internet penetration is still abysmally low and is one of the major threats to e-Commerce implementation. However, the nascent democracy enjoyed in Nigeria is faced with some teething problems, but it promised with time, relative political stability, direct foreign investment, improved economical atmosphere, improved social services and technological development more than ever witnessed in the country. Therefore, a viable framework for Nigeria and Africa would be such that involves the private and public partnership (PPP). This consortium is expected to provide the platform for access to the Internet and popularize the use of e-Payment among other things