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AT temperatures below some 2,000°K. the significant end‐products of technically important reactions involving propellents of molecular forms compounded of C, H, O and N atoms are of the following familiar types:

AT temperatures commonly attained in the reaction of liquid propellents at operative pressures in rocket combustion chambers, the significant gaseous end products can be shown to consist at chemical equilibrium of some or all of the following types: H2O, CO2, N2, CO, H2, O2, OH, NO, H, O, N and (rarely) C‐gaseous. The concentrations of these constituents are dependent, for a given propellent combination, upon the temperature (and to a less extent the pressure) conditions under which the reaction proceeds to equilibrium. Thus at temperatures below 2,500°K., the products H2O, CO2, N2 alone are of significance for the case of oxygen balance, whilst to these are added O2 for the oxygen excess case, and CO and H2 for oxygen deficit. The other products are formed by dissociation of these, and their concentrations increase sharply as the temperature rises above some 2,700°K.

The Board of Trade have appointed Sir Richard G. K. Way, K.C.B., C.B.E., to the Board of the British Overseas Airways Corporation as a part‐time member for a period of three years from November 1, 1967. Sir Richard Way, who retired from his position as Permanent Secretary of the Ministry of Aviation in March 1966, is now the Chairman of Lansing Bagnall Ltd. and a member of the Board of Lansing Bagnall Group Ltd.

EXACT methods for thermodynamic calculations of high temperature combustion processes at equilibrium are very involved and time‐consuming because of the increasing influence of dissociation with increasing temperatures above 1800dcg. K. Many simplified methods have been proposed, but most of them are still rather complicated or approximate and are cither suitable for a special type of application only or based on assumptions valid within conditional limits. From the research engineer's point of view Mollier‐charts (total heat—entropy diagrams) would be most useful, but for general use too many charts would be required. For every possible reaction as many charts as there are mixture ratios have to be considered. Professor Lutz of Braunschweig proposed in 1947 a new type of enthalpy‐chart, which enables a wide range of applications to be covered by a reasonable number of charts. A number of such charts have been constructed by the Ministry of Supply.

This paper presents the results of a qualitative study that involved students of an interdisciplinary PhD program. The study objective was to gather requirements to create a knowledge graph information system. The purpose of this study was to determine information-seeking practices and information needs of this community, to inform the functionalities of a proposed system, intended to help students with relevant resource discovery and decision-making.

The study design included semi-structured interviews with eight members of the community, followed by a website usability study with the same student participants.

Two main information-seeking styles are recognized and reported through user personas of international and domestic (USA) students. The findings show that the useful information resides within the community and not so much on the program website. Students rely on peer communication, although they report lack of opportunities to connect. Students’ information needs and information seeking are dependent on their progress through the program, as well as their motivation and the projected timeline.

Considering the current information needs and practices, a knowledge graph hosting both information on social networks and the knowledge produced by the activities of the community members would be useful. By recording data on their activities (for example, collaboration with professors and coursework), students would reveal further useful system functionalities and facilitate transfer of tacit knowledge.

Aside from the practical value of this research that is directly influencing the design of a system, it contributes to the body of knowledge on interdisciplinary PhD programs.

Although photographs in sustainability reports are useful in conveying complex messages, they may also be used to manipulate the presentation of disclosures to exploit the limited cognitive processing capacity of humans. Therefore, this paper aims to examine the features of photographs aimed at capturing individuals’ attention through visual structures and evoking specific emotions through carefully chosen content. Furthermore, it examines whether such framing practice is explained by incentives for legitimizing behaviours and influencing reputation.

The authors conduct a content analysis of photographs in 154 sustainability reports published by US companies. The authors captured the nature of photographs, the context in which they are being used, their themes and emotional content and layout and interaction features to understand how photographs are used for attribute framing to influence information processing. Furthermore, the authors statistically examine the framing practice between companies with different characteristics to identify any patterns for the impression management use of photographs in sustainability reports.

Photographs are often large with a horizontal orientation to capture attention and show content viewed at eye level and in either medium or close-up shots to engage viewers. Furthermore, photographs are emotionally loaded with different themes such as depictions of people, technology and nature. These themes are used to predominately evoke positive emotions of awe, nurturance, pride, amusement and attachment. This practice is often used by companies in environmentally sensitive areas that have close consumer relationships or are covered controversially in the media.

The authors reveal reporting practices and identify photographic features that attract attention and convey emotions that go beyond aesthetic qualities. This is important because emotions conveyed through photographs can be potentially misleading and influence judgements subconsciously.

This paper aims to achieve a critical understanding of the place of psychological knowledge with regard to the international regulation of the world of work. Specifically, it seeks to explore the place and operations of psychology involved in the constitution of workers as subjects in countries that do not produce this knowledge but appropriate, adapt and hybridise it.

The transition from a “traditional” passengers transport system to a “rapid bus service” named Transmilenio is considered as a “local” focus of analysis. Working conditions and some psychological practices established in a multi‐site ethnographic study conducted within the transport system are considered to illustrate ways in which psychological knowledge contributes to the production of drivers as subjects, and to perpetuate the relationships of international subordination.

The paper establishes the particular transformations that, in terms of working conditions, frame the application of psychological knowledge. It also shows how psychological practices applied in different types of transport companies are connected to produce “traditional” workers as “the other” which has to be transformed. Finally, the psychological practices are linked to some of the global flows which aim to produce a global management at a distance”.

Even though work psychology is a source of inspiration for management techniques, there is not much research related to the local‐global implications of its practices. Thus, this paper contributes to the understanding of the ways in which North‐Atlantic psychology operates when it is applied to work settings located in the South.

THE first part of Professor Duncan Dowson's paper (March/April issue) dwelt on late 19th century development of machinery outstripping the performance of available lubricants. Contemporary lubricant research, and personalities involved, where described, leading to the concept of fluid‐film lubrication, documented by Professor Osborne Reynolds' paper read to the Royal Society in 1886.

THE annual election of the Library Association Council for 1946 is over. Of course, only a small part of the Council has been before the electors. The results follow an old‐established precedent, but are nevertheless curious. Why is it that country members seem not to be interested in their selection of candidates who come from the metropolitan area? There were two to be elected for London and those successful were Frank M. Gardner with 572 and Captain Richard Wright with 501 votes; there were five Country Councillors required and Miss M. F. Austin (854) and Messrs. W. A. Munford (831), F. G. B. Hutchings (817), E. Wisker (716) and E. Osborne (601) were elected. Besides the London candidates who were successful by ballot, Mr. W. B. Stevenson (447) and Mr. E. Sydney (360) will serve on the Council for shorter periods in the room of Mr. J. D. Stewart and S/Ldr. J. D. Cowley. It will therefore be seen that there is considerable disparity in the voting for the two parts of the Council. As we say, this is rather curious as it follows a long established tradition. The new members are Mr. Gardner, Mr. Stevenson, Miss Austin, Mr. Munford and Mr. Wisker; this appears to us to be a very interesting and useful team. They have already shown by definite work, mostly in the A.A.L., that they are qualified leaders amongst the younger librarians. We wish them good fortune in the carrying out of their part in the reconstruction period ahead.

THE programme of the Bournemouth Conference shows variety enough concentrated into its three days of business to satisfy even that Mr. Smith, of Leicester, who made Cheltenham memorable for the cheap press. The main subject appears to be book selection of two kinds, adult and junior. Mr. Callender has been given a difficult task, and it does not appear conceivable that any very practical issue can come of the debate even with Mr. Jast as opener. Book‐selection must be the application of a series of definite answers to such questions as “What is a good book?” “What is a bad book?” “When may an inferior book prove to be the best for the end in view?” and so on; and that is a matter first for a committee, which may give well‐led and lengthy deliberation to the subject; it certainly won't come to much in open conference. Much the same must be the case with “An Analysis of Child Reading,” even if Mr. Osborne leads and Mr. Berwick Sayers follows him. On what enquiry will the analysis be based? Who has analysed children's reading in England on any scale that would justify public debate?