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IT is nearly fifteen years since the introduction into civil operations of the Dart turboprop in the Vickers Viscount and the Ghost turbojet in the dc Havilland Comet. For many years it was thought that the turboprop would remain dominant in the short and medium haul classes, but the continued demand for higher cruising speeds and the passenger appeal of the jet have been largely responsible for the turboprop aircraft being superseded by the new generation of turbofan aircraft.

In writing a paper to honour Professor Clem Tisdell, it is apt to focus attention on the environmental and human costs of commercial agricultural production, especially the Green Revolution technology in South Asia during the last few decades. This is an area where Professor Tisdell has done much research, amongst the multitude of other research interests he has pursued in his very illustrious career. Modern commercial agricultural practices involving chemical inputs such as fertilizers and pesticides have been associated with huge increases in food production never witnessed before and, in the case of cereal production (especially wheat) under Green Revolution technology, recorded spectacular growth. As statistics show, production and productivity have increased. However, the high chemical usage of fertilizers and pesticides to bring about these spectacular increases in food production is not without its problems. A visible parallel correlation between higher productivity, high chemical input use and environmental degradation and human health effects is evident in many countries where commercial agriculture is widespread. This paper discusses the environmental and health effects/costs arising from the high use of chemical inputs to increase production and productivity in South Asia, with a field study carried out in Sri Lanka to show the health costs arising from direct exposure to pesticides during pesticide handling and spraying on farms by small‐scale farmers.

The purpose of this paper is to examine user studies as well as user education within the context of public services offered by archival institutions. It highlighted some of the key aspects that constitute both concepts drawing from history in order to provide a better understanding in the context of current professional discussions.

The review analysed peer-reviewed articles ranging from the late 1970s to the present time to illuminate debates in the archival professional underpinning the current understanding of user studies and user education.

The paper outlined the different paths used in user studies to ensure data collection is exhaustive and provides a nuanced assessment of user needs. It also outlined the two related paradigms of structuring user education programmes, highlighted the points at which they differ and the rich discussions resulting from comparative analysis.

The paper demonstrated that there is a rich corpus of professional literature on both user studies and user education, expounding on different aspects that would ensure both are designed and implemented effectively.

This study attempted to clarify the relationship of power of school heads and participation of English teachers in school decisions. A deliberate sample of eight schools was drawn from the schools in the northwest of England. The major criteria for selection were: size (medium to large); location(urban‐suburban and reasonably accessible from Manchester); and representatives of the types of schools found in that geographic area. A descriptive analysis indicated that English teachers do perceive themselves participating in most decision areas. At a second level of analysis the relationship between status and intensity of participation was computed with r = .544 for the 103 members of staff (p<.001). An implication is that competence is a criterion for status position, leading to involvement and hence power in the social system. The final analysis dealt with implications of use of power from a description of participation patterns. The clusterings found lend credence to the belief that English heads are controlling those areas of power where tangible rewards and punishments are evident. They appear to be supporting participatory management in such other areas as those where teachers do not desire involvement or those which carry minimal expenditure of organizational resources.

The purpose of this paper is to explore whether journalism education techniques can be adapted for use in the information literacy classroom as a means of teaching the ethical use of information.

The author uses personal experience as a journalist and graduate of journalism education programs to examine the similarities between journalism pedagogy and information literacy and whether any aspect of journalism pedagogy is transferrable to the information literacy classroom.

Journalism educators deliver a potent anti-plagiarism message using case studies and “war stories” from the newsroom delivered through the pervasive instruction method or stand-alone ethics class. Using case studies from a variety of different disciplines in information literacy classes could help students make a stronger connection between honest writing in all subjects. However, until information literacy is taught more widely in libraries as semester-long classes, it would be difficult to use journalism’s pervasive method of instruction. The same holds true with the stand-alone class, which does not appear to be used as a part of information literacy education.

Given the many commonalities between journalism pedagogy and information literacy, there have been very few attempts to see whether it would be efficacious to adapt journalism education’s methodology to the information literacy classroom.

There have been increasing calls to explore the psychological contract from the lens of power. By addressing this gap, the purpose of this paper is to investigate the assumption of mutuality in relation to power dynamics in the employment relationship.

A total of 43 in-depth interviews are conducted with 6 managerial and 37 non-managerial respondents in three major call center organizations in Pakistan. Template analysis is used to analyze the data.

By undermining the assumption of implicit mutuality, the analysis reveals indeterminacy, an issue that has been frequently underplayed in the psychological contract research. The results further suggest that – in reality – employability, flexibility and employee training do not promote mutuality to the extent that is theoretically assumed because of the employers’ manipulation of these issues in their own favor.

The focus on call centers limits the generality of findings with further qualitative research needed in other industries to explore how power asymmetries impact upon mutuality in different working environments.

The research implications suggest the significance of timely and explicit communication in order to curtail indeterminacy in the employment relationship. This will not only reduce the development of breach perceptions among employees but will also reinforce their psychological contracts with the organization.

This research contributes by highlighting the significance of mutual dependence rather than mutuality in the psychological contract. The mutual dependence approach efficiently acknowledges the implications of power asymmetries which remain largely under-researched in the psychological contract theory.

This paper aims to examine empirical evidence of the criterion, construct, and face validity of two processes commonly used in selection – selection interviews and assessment centres (ACs) – in the selection of chairs of primary care trusts.

A critical review of the literature and an empirical investigation are undertaken.

Evidence is presented of the reliability and the predictive, construct, and face validity of using a combination of selection interviews and AC methodology in appointments to public office. In the light of the evidence of the potential benefits of using more than one approach, it is suggested that a combination of AC methodology and panel interviews be used in making public sector appointments.

The evidence presented supports the decision of the Appointment Commission to use AC methodology in the selection for positions in public office, and points to ways in which the process could be improved.

The paper provides empirical evidence of the reliability and validity of two methodologies used in selection to posts.

The purpose of this paper is to understand the emergence of digital reformatting as a technique for preserving information within the cultural heritage preservation community by reviewing historical trends in modern preservation research.

This paper analyzes secondary sources, reviews and historical texts to identify trends in the intellectual and technological histories of preservation research, beginning with the first applications of the scientific method to combating book decay in the early nineteenth to the emergence of digitization techniques in the late twentieth and early twenty-first centuries.

This paper identifies five major historical periods in the development of preservation knowledge: the early experimental era; era of microfilm experimentation; era of professionalization; era of digital library research; and the era of digital reformatting and mass digitization; and identifies three major trends in its development: empirical inquiry, standardization and centralization.

Findings reflect broad trends in the field of preservation, primarily in a United States context and are limited to the modern era of preservation research.

This paper's broad historical overview provides a reference for preservation professionals and students in library science or archives programs. Identifying historical trends enables practitioners to critically examine their own preservation techniques and make better decisions when adopting and using new preservation technologies.

This paper provides a unique perspective on the history of preservation knowledge that synthesizes existing historical research in order to identify periods and trends that enable a clearer understanding of digital reformatting in its historical emergence.

THE Rolls‐Royce RB.211 turbofan engine in various ratings is on firm offer for the proposed large three‐engined transport aircraft such as the McDonnell Douglas DC‐10 and the Lockheed 1011 now being designed in the United States. First certificated engines will be available in December 1970, at a basic price of around $½ million varying according to the rating chosen. The engine is also offered for 200‐seat twin engine transports. A typical specification is as follows:

This chapter explores the ways in which cybernetics influenced the works of F. A. Hayek from the late 1940s onward. It shows that the concept of negative feedback, borrowed from cybernetics, was central to Hayek’s attempt to explain the principle of the emergence of human purposive behavior. Next, the chapter discusses Hayek’s later uses of cybernetic ideas in his works on the spontaneous formation of social orders. Finally, Hayek’s view on the appropriate scope of the use of cybernetics is considered.