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Purpose. This work provides information about households where grandparents assume roles as full‐time surrogate parents to their grandchildren. Social policy implications of these relationships and potential social policy changes to help these families are presented. Methodology. A comprehensive review of the literature was conducted to appropriately represent the phenomenon of grandparents raising grandchildren. Information regarding the functioning of both grandparents and grandchildren are addressed. Findings. Grandparents who raise their grandchildren tend to experience elevated levels of stress that negatively impact their social, emotion, and physical well‐being. Children in these families may encounter problems with psychological development, adjustment, and educational functioning. Grandparents who raise their grandchildren significantly influence the development of these children in the social and educational environments. The children also impact their grandparents’ well‐being. The findings underscore the need to consider social policy implications for these families. Originality/Value. This work emphasises the functioning of not only grandparents in these families, but grandchildren as well. Additionally, information is provided regarding the pejorative impact of certain social policies on grandparents’ social‐emotional well‐being and the grandchildren’s behavioural and educational functioning. Social policy propositions are offered to help these families. The information in this article will likely help professionals in governmental, social service, and educational agencies work better with these families.

The Bureau of Economics in the Federal Trade Commission has a three-part role in the Agency and the strength of its functions changed over time depending on the preferences and ideology of the FTC’s leaders, developments in the field of economics, and the tenor of the times. The over-riding current role is to provide well considered, unbiased economic advice regarding antitrust and consumer protection law enforcement cases to the legal staff and the Commission. The second role, which long ago was primary, is to provide reports on investigations of various industries to the public and public officials. This role was more recently called research or “policy R&D”. A third role is to advocate for competition and markets both domestically and internationally. As a practical matter, the provision of economic advice to the FTC and to the legal staff has required that the economists wear “two hats,” helping the legal staff investigate cases and provide evidence to support law enforcement cases while also providing advice to the legal bureaus and to the Commission on which cases to pursue (thus providing “a second set of eyes” to evaluate cases). There is sometimes a tension in those functions because building a case is not the same as evaluating a case. Economists and the Bureau of Economics have provided such services to the FTC for over 100 years proving that a sub-organization can survive while playing roles that sometimes conflict. Such a life is not, however, always easy or fun.

Blues music is in the midst of its second revival in popularity in roughly thirty years. The year 1960 can be identified, with some qualification, as a reference point for the first rise in international awareness and appreciation of the blues. This first period of wide‐spread white interest in the blues continued until the early seventies, while the current revival began in the middle 1980s. During both periods a sizeable literature on the blues has appeared. This article provides a thumbnail sketch of the popularity of the blues, followed by a description of scholarly and critical literature devoted to the music. Documentary and instructional materials in audio and video formats are also discussed. Recommendations are made for library collections and a list of selected sources is included at the end of the article.

This essay raises a concern about the trajectory that new institutionalism has been following during the last decades, namely an emphasis on heterogeneity, change and agentic behavior instead of isomorphism and conformist behavior. This is a crucial issue from the perspective of the philosophy and methodology of science since a theory that admits both change and stability as a norm has less scientific weight then a theory that predicts a prevalence of passivity and isomorphism over change and strategic behavior. The former provides explanations and predictions while the latter does not.

The paper offers an analysis of the nature, characteristics, functions and boundaries of institutional theories in the spirit of philosophy and methodology of science literature.

The power of the former institutional theory developed by Meyer, Rowan, DiMaggio and Powell lies in its generalization, explanation and prediction of observable and unobservable phenomena: as a typical organizational theory that puts forward directional predictions, it explains and predicts the tendency for organizations to become more similar to each other over time and express less strategic and interest-driven behavior, conforming to ever-increasing institutional pressures. A theory of isomorphism makes scientific predictions while its modern advancements do not. Drawing on Popper's idea of the limit of domains of explanation and limited domains of theories we present two propositions that may direct our attention towards the strength or weakness of institutional theories with regard to their explanations of organizational processes and behavior.

The paper draws implications for further theory building in institutional analysis by suggesting the nature of institutional explanations and the place of institutional change in the theoretical apparatus. Once institutional theory explains the tendency of the system towards equilibrium, there is no need to explain the origins and causes of radical change per se. Institutional isomorphism theory explains and predicts how even after radical changes organizational fields will move towards isomorphism, that is, institutional equilibrium. The task is, therefore, not to explain agency and change but to show that it is natural and inevitable processes that organizational field will return to isomorphic dynamics and move towards homogenization no matter how much radical change occurred in this field.

The paper discusses the practical problems with instrumental utility of institutional theories. In order to be useful any theory must clearly delineate its boundaries and offer explanations and predictions and it is only the former 1977/1983 institutional theory that satisfies these requirements while modern advancements merely offer ambiguous theoretical umbrellas that escape empirical tests. For researchers therefore it is important to recognize which theory can be applied in a given limited domain of research and which one has little or no value.

LIBRARIANS in Britain stand at the threshold of great possibilities. Having passed through the ages of the ecclesiastical library, the rich collector's private library, the academic institutional library, and the rate‐supported public library—all general libraries —they have reached the age of the special library. The next will be that of the co‐ordinated, co‐operative library service.

The purpose of this paper is to analyse the thermal environment of two engineering testing centres cooled via different means using computational fluid dynamics (CFD), focussing on the indoor temperature and air movement. This computational technique has been used in the analysis of thermal environment in buildings where the profiles of thermal comfort parameters, such as air temperature and velocity, are studied.

A pilot survey was conducted at two engineering testing centres – a passively cooled workshop and an air-conditioned laboratory. Electronic sensors were used in addition to building design documentation to collect the required information for the CFD model–based prediction of air temperature and velocity distribution patterns for the laboratory and workshop. In the models, both laboratory and workshop were presumed to be fully occupied. The predictions were then compared to empirical data that were obtained from field measurements. Operative temperature and predicted mean vote (PMV)–predicted percentage dissatisfied (PPD) indices were calculated in each case in order to predict thermal comfort levels.

The simulated results indicated that the mean air temperatures of 21.5°C and 32.4°C in the laboratory and workshop, respectively, were in excess of the recommended thermal comfort ranges specified in MS1525, a local energy efficiency guideline for non-residential buildings. However, air velocities above 0.3 m/s were predicted in the two testing facilities, which would be acceptable to most occupants. Based on the calculated PMV derived from the CFD predictions, the thermal sensation of users of the air-conditioned laboratory was predicted as −1.7 where a “slightly cool” thermal experience would prevail, but machinery operators in the workshop would find their thermal environment too warm with an overall sensation score of 2.4. A comparison of the simulated and empirical results showed that the air temperatures were in good agreement with a percentage of difference below 2%. However, the level of correlation was not replicated for the air velocity results, owing to uncertainties in the selected boundary conditions, which was due to limitations in the measuring instrumentation used.

Due to the varying designs, the simulated results of this study are only applicable to laboratory and workshop facilities located in the tropics.

The results of this study will enable building services and air-conditioning engineers, especially those who are in charge of the air-conditioning and mechanical ventilation (ACMV) system design and maintenance to have a better understanding of the thermal environment and comfort conditions in the testing facilities, leading to a more effective technical and managerial planning for an optimised thermal comfort management. The method of this work can be extended to the development of CFD models for other testing facilities in educational institutions.

The findings of this work are particularly useful for both industry and academia as the indoor environment of real engineering testing facilities were simulated and analysed. Students and staff in the higher educational institutions would benefit from the improved thermal comfort conditions in these facilities.

For the time being, CFD studies have been carried out to evaluate thermal comfort conditions in various building spaces. However, the information of thermal comfort in the engineering testing centres, of particular those in the hot–humid region are scantily available. The outcomes of this simulation work showed the usefulness of CFD in assisting the management of such facilities not only in the design of efficient ACMV systems but also in enhancing indoor thermal comfort.

How is moral legitimacy established in pluralist contexts where multiple moral frameworks co-exist and compete? Situations of moral multiplexity complicate not only whether an organization or practice is legitimate but also which criteria should be used to establish moral legitimacy. We argue that moral legitimacy can be thought of as the property of a dynamic dialogical process in which relations between moral schemes are constantly (re-)negotiated through dynamic exchange with audiences. Drawing on Boltanski and Thévenot’s ‘orders of worth’ framework, we propose a process model of how three types of truces may be negotiated: transcendence, compromise, antagonism. While each can create moral legitimacy in pluralistic contexts, legitimacy is not a binary variable but varying in degrees of scope and certainty.

This paper investigates the impact on the price volatility of Australian 90 day Bank Accepted Bills (BABs) when the futures contracts written on BABs expire. Using the absolute value of log price changes as a measure of volatility, and appropriate non‐parametric tests, the analysis does not detect any expiration day price effect, nor reversal in volatility between expiration Fridays and the following Mondays for the period 1 November 1979 to 1 November 1993. These findings are consistent with the results of those overseas studies which do not find evidence for expiration day effects.

The following are portions of a paper, bearing the title as above, which was read before the Royal Society of Arts on April 18th, 1945, by Sir Edward V. Appleton, LL.D., F.R.S., the Secretary of the Department; Sir Henry Dale, P.R.S., presiding.