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Test marketing has a long history: the precursor of all of today's market research methodologies was undoubtedly trial and error. However, it remains an area of vital interest today. The promise and the performance of high‐tech test marketing can be shown from the perspective of the Campbell Soup Company.

The librarian and researcher have to be able to uncover specific articles in their areas of interest. This Bibliography is designed to help. Volume IV, like Volume III, contains features to help the reader to retrieve relevant literature from MCB University Press' considerable output. Each entry within has been indexed according to author(s) and the Fifth Edition of the SCIMP/SCAMP Thesaurus. The latter thus provides a full subject index to facilitate rapid retrieval. Each article or book is assigned its own unique number and this is used in both the subject and author index. This Volume indexes 29 journals indicating the depth, coverage and expansion of MCB's portfolio.

Using the methods of participant observation and interviews, the author has drawn up a list of management techniques that are employed for the control of young female workers. He concludes that there is insufficient evidence to support the need for such controls and feels that managements have absorbed stereotyped images of young people as irresponsible and operate the controls regardless.

Three‐dimensional printing (3DP) is an increasingly popular additive manufacturing (AM) process. The structure produced in 3DP comprises of two main elements: an external “shell” and an inner “core”. The variation of this structure and print strategy dictates many factors, such as the final physical properties, the final weight of the part, the total material usage, effects on warpage and the build speed. As such, the accuracy and repeatability of these geometric structures is of importance. The measurement and validation of the actual printed structure is especially challenging due to the nature of the materials system. The purpose of this paper is to present an effective method to analyze the internal structure of a 3DP.

A dedicated video‐monitoring system has been developed to capture and characterize the 3DP build structure layer‐by‐layer. A significant image‐processing phase involved image calibration, filtering, thresholding and segmentation. The investigation is composed by three substudies. First, the reliability of the developed system was determined by comparing nominal dimensions of a benchmark part with video and contact measurements. The two studies have focused on the “shell” and “core” characterization, respectively.

A resolution of 508 pixel per inch was determined. From the first studies, benchmark elements of 0.5 mm presented a deviation between 0.29 and 0.44 mm from their normal dimension. The thickness of the external shell was analyzed, in both clear and coloured modes. Dimensions ranged between 1.51 and 1.58 mm for a clear part, and 1.59 and 1.69 mm for the coloured version. A further study resulted in a 3D virtual model of the internal mesh structure, which had been printed at high saturation.

The internal structure of a 3D printed part has been successfully analyzed by in‐process monitoring providing information and data not available through conventional analysis of the final part. This system provides a solution for real‐time non‐destructive analysis, which is currently absent in various forms of AM.

The purpose of this paper is to explore poor service encounters from the customer's perspective.

Multiple autoethnographic accounts of overwhelmingly dreadful customer experiences at a department store were gathered and analyzed. The writers of the accounts were asked only to chronicle their experiences, and not directed to comment specifically on retail employee behaviour. Thus a different approach to dysfunctional service employee behaviour is offered to complement research on service sabotage, internal marketing and service delivery gaps.

Department store customers, especially the younger ones, have very low opinions of retail frontline employees. Common to all the autoethnographic accounts was a cynicism towards the actions of such employees that pervaded the customer perceptions of retail service encounters. Overcoming customer cynicism was identified as a key objective of employee training.

The approach, based on multiple autoethnographic accounts, provides insights that can be overlooked with traditional customer satisfaction surveys. It is particularly useful for eliciting constructive feelings of experiences. By its nature, it can be difficult for researchers to forecast the ground that may be covered by the scribes, and therefore to plan a research project around the method.

The findings are relevant to those involved in training retail frontline employees. They strongly suggest that training, through functional scripts and handy customer service tips, is inappropriate for creating successful service encounters with cynical customers, and may even encourage service sabotage behaviours from severely bored employees.

The methodology is novel in the context of retail customer experiences. The findings bring customer cynicism to the fore, and question the viability of continuing with retail formats that require monotonous and uninspiring roles to be played by retail employees.

This article develops an econometric valuation methodology that is applied to identifying value in South African red wines. It is found that quality, as simultaneously measured by Wine magazine and Platter star ratings, is the dominant factor in explaining the cross‐section of prices. However, together with a varietal dummy these factors are only able to explain about 40% of the variation in wine prices. This implies that there is considerable value that may be gleaned through informed bargain seeking using this tool. Indeed, at certain levels of value there is more than a 50% differential in price.

Through the use of both sight and blind‐based quality metrics, the purpose of this paper is to ascertain the extent to which the sighted appreciation of a wine's intrinsic merit is confounded by extrinsic cues such as price and region of origin.

Using a database of sighted and blind tastings of three red South African wines (Cabernet, Merlot and Shiraz) over the period 1993‐2001, a series of multiple linear regression models is developed to explain sighted quality ratings.

The meta‐model, with an adjusted R² of 31 per cent, indicates three statistically significant explicatory factors, namely price, region, and intrinsic quality. The price cue alone explains 84 per cent of sighted quality assessments; the combined effect of both the region and price cue explains 95 per cent. This finding suggests that when quality is measured from a sighted perspective, area becomes a significant explicator, along with price. It is only once the cues of region and price have been factored into the meta‐model that intrinsic merit becomes relevant, and here, only to an extremely limited extent (5 per cent). The lack of correspondence between sighted and blind tasting scores, suggests that for sighted judgements – extrinsic cues appear to be masking the wine's intrinsic merit.

For the first time, blind and sighted tasting results are collated into one database and statistically interrogated. The findings show how we are deleteriously distracted by the apparent efficacy of extrinsic cues.

The lesbian, gay, bisexual and transgender (LGBT) people face discrimination, verbal harassment, rejection and physical violence that affect their mental health and well-being. Adolescence is a critical period for the development of mental health and well-being. The purpose of this study is to analyze research publications on the mental health and well-being of LGBT adolescents.

A comprehensive research strategy was implemented using the SciVerse Scopus database to accomplish the objective of the study. The study period was all times up to 2020. VOS viewer program was used for mapping of frequent author keywords, journal citations and research collaboration.

The search strategy found 1,167 documents authored by 4,067 researchers and disseminated through 321 scientific journals. Research on the topic started half a century ago but showed a visible steep growth after 2008. Authors and institutions in the USA dominated the field. Northwestern University, based in the USA, was the most active institution. No significant cross-country collaboration was observed in this field. The most active journal was Journal of Adolescent Health (n = 67, 5.7%), followed distantly by the Journal of LGBT Youth (n = 48, 4.1%). The contribution of journals in the field of mental health to the topic was limited. Documents on family acceptance, suicidality and school victimization/violence received the highest number of citations. The retrieved documents in the field had five major topics: suicide, mental health/depression, bullying/victimization, substance use/alcohol and violence.

The present study has a few limitations that are typical of any bibliometric study. Both the search strategy and the use of Scopus are inherent limitations of bibliometric studies.

Policymakers and public health experts in various countries need to prioritize research on the mental health and well-being of LGBT adolescents based on the number of publications produced by the country. The finding that certain world regions have limited research contribution does not mean the absence of mental health problems of LGBT adolescents.

The limited number of scholars in the field of sexual health, the cultural barriers are the main obstacles for publishing in this field. Research on LGBT adolescents’ mental health and well-being should be prioritized in countries and world regions with limited research in this field. Therefore, journal editors should endorse publications in this field through publishing thematic issues in this field.

To the best of the authors’ knowledge, this is the first study to assess the scientific research publications on the mental health of the LGBT people as an indication of interest and social problems facing this community.

THIS is the month when librarians and library workers everywhere, their holidays over, turn to their winter plans. There are, however, some interesting events to take place before the darker and more active months come. The first is the meeting at Oxford on September 21st and subsequent days of the Federation International de Documentation. This will be followed by and merge into the ASLIB Conference, and there is in prospect an attendance of over three hundred. Our readers know that this organization produces and advocates the International Decimal Classification. It is not primarily a “library” society but rather one of abstractors and indexers of material, but it is closely akin, and we hope that English librarianship will be well represented. Then there is a quite important joint‐conference at Lincoln of the Northern Branches of the Library Association on September 30th— October 3rd, which we see is to be opened by the President of the Library Association. Finally the London and Home Counties Branch are to confer at Folkestone from October 14th to 16th, and here, the programme includes Messrs. Jast, Savage, McColvin, Wilks, Carter, and the President will also attend. There are other meetings, and if the question is asked: do not librarians have too many meetings ? we suppose the answer to be that the Association is now so large that local conferences become desirable. One suggestion, that has frequently been made, we repeat. The Library Association should delegate a certain definite problem to each of its branches, asking for a report. These reports should form the basis of the Annual Conference. It is worthy of more consideration.