A number of the major abstracts journals have in recent years gone over to a fully computer based production technique, in which unit records are keyboarded and transferred to…
Abstract
A number of the major abstracts journals have in recent years gone over to a fully computer based production technique, in which unit records are keyboarded and transferred to magnetic tape. The tape is then processed so that it can be used in photocomposition of the journal text, and remains available for retrieval operations.
This case history describes an information system, using data‐processing techniques, with the following characteristic features: it is designed to serve an interdisciplinary group…
Abstract
This case history describes an information system, using data‐processing techniques, with the following characteristic features: it is designed to serve an interdisciplinary group of workers, whose literature is widely scattered; the users themselves are taking an active part in the development and operation of the system; the large back‐log of past literature is being processed into the system with minimal effort; a variety of tools for both current awareness and retrospective search is being developed, with subject approaches via title words, keywords, facet codes, broad subject codes, and user profile codes; the relative value of these approaches will be evaluated; some of these tools are manually searched, others will be mechanically searched; some are derived from simpler data‐processing equipment, others from the computer; the system is integrated so that all these tools are derived from a single intellectual and clerical input; the system can be flexibly expanded to incorporate more literature, more users, more complex use, and wider subject scope.
This paper describes an in‐depth case study of auditors, and presents a non‐linear model of an information seeking and using process in the workplace. It argues for a model that…
Abstract
This paper describes an in‐depth case study of auditors, and presents a non‐linear model of an information seeking and using process in the workplace. It argues for a model that focuses on information users’ perceived situations at a particular time and place. The model comprises a set of critically different situations that auditors perceived in dynamic information seeking and using processes in their workplaces: task initiation situation, focus formulating situation, ideas assuming situation, ideas confirming situation, ideas rejecting situation, ideas finalising situation and passing on ideas situation. Distinctive information behaviours associated with each situation are identified. The model has important implications: first, it highlights the impracticability of modelling a “right” information seeking and using path for all auditors; second, it explains phenomena considered as exceptions in traditional information seeking models; third, it points out the changing meaning of information for auditors in different situations. The alternative model provides a framework for transcending current practices in information literacy education, information systems design and information management.
Details
Keywords
Documentation is a practice concerned with all the processes involved in transferring documents from sources to users. The volume and variety of documents are immense, and…
Abstract
Documentation is a practice concerned with all the processes involved in transferring documents from sources to users. The volume and variety of documents are immense, and consequently procedures of handling them are often pragmatic. Nevertheless, principles emerge that may be applied in practice. It is these principles that we may call ‘concepts of documentation’.
As the use of computers in information systems becomes more wide‐spread, more and more groups will be involved in the design of such systems. Among the decisions to be made are…
Abstract
As the use of computers in information systems becomes more wide‐spread, more and more groups will be involved in the design of such systems. Among the decisions to be made are those on output formats. This document is an attempt to list those factors which should be taken into consideration in designing an output format.
Annual report (June 1965 through May 1966) on the Chemical Compound Registry system. Columbus, Ohio, 1966. Development work has resulted in a the registration of about 360,000…
Abstract
Annual report (June 1965 through May 1966) on the Chemical Compound Registry system. Columbus, Ohio, 1966. Development work has resulted in a the registration of about 360,000 chemical compounds in a computer system giving an identification in the form of a unique number for each compound and files data on the structure nomenclature and bibliographical citations. b testing of various methods for the input of chemical information in machine language by the use of special keyboards and keyboarding conventions. Thus whenever a compound which is already on file appears in a new reference, the previously assigned number is recovered automatically. The Registry Number acts as a tie for all information related to a given compound. The importance of this approach is indicated by the fact that an examination of the subject indexes of Chemical Abstracts shows that about 85 per cent of the index entries relate to compounds and materials.
To determine the optimal general condition for the synthesis and polymerisation of 2‐(N‐phthalimido)ethyl acrylate (NPEA), as well as the exchange reactions of poly‐NPEA with…
Abstract
Purpose
To determine the optimal general condition for the synthesis and polymerisation of 2‐(N‐phthalimido)ethyl acrylate (NPEA), as well as the exchange reactions of poly‐NPEA with aminated and hydroxylated compounds as a model compound.
Design/methodology/approach
Preparation of 2‐(N‐phthalimido)ethyl acrylate by the reaction of N‐(2‐hydroxyethyl) phthalimide with acrylic acid and polymerisation of the resulting monomer. The exchange reactions of the resulting polymer with amines and hydroxy compounds were carried out. The structure of the resulting compounds were characterised.
Findings
NPEA was prepared by the reaction of N‐(hydroxyethyl)phthalimide with acrylic acid. The monomer prepared was easily polymerised. The reactions of the resulting polymer with amines and hydroxy compounds were studied. In all cases, the exchange reactions were almost practically quantitative, which was confirmed by elemental analysis, IR and 1HNMR spectroscopy. Also, it was clear that poly‐NPEA showed a good behaviour as a model compound for a long active polymeric‐drug.
Research limitations/implications
The new monomer described in the present investigation may be useful for the preparation of polymeric‐drug adducts. Also, similar monomeric phthalimides may be synthesised starting from a number of other hydroxy or amino acids, thus providing wider possibilities for the synthesis of pharmacologically active polymers.
Practical implications
The method for preparation of monomer is simple and the exchange reactions provide a simple and practical solution to prepare some classes of macromolecular drugs.
Originality/value
The method of preparation of polymers was novel and may be useful for preparation of polymeric‐drug adducts.