Response to letter from Barry & Dennis

This letter is a reply to Barry A., Dennis M. Methodological and practical limitations to visually determining intoxication. Addiction 2013; doi: 10.1111/add.12352

Does training affect growth? - answers to common questions

Adolescent athletes may be at risk of restricted growth and delayed maturation when intense training is combined with insufficient energy intake. Because catch-up growth commonly occurs when training is reduced or ceases, final adult stature is unlikely to be compromised. However, in athletes who have long-term, clinically delayed maturation, catch-up growth may be incomplete. By charting individual growth patterns, physicians, coaches, and athletic trainers can detect vulnerable periods when the training intensity should be reduced and energy intake may need to be increased.

Growth of highly versus moderately trained competitive female artistic gymnasts

Purpose: To investigate whether growth was adversely affected in 137 young competitive female artistic gymnasts involved in different training volumes.

Methods: This was a 2-yr prospective cohort study in which height, sitting height, leg length, weight, skinfolds, and pubertal status were measured in competitive advanced (20–27 h·wk-1) and intermediate (7.5–22 h·wk-1) training level female gymnasts every 6–12 months. Biological parameters of the adolescent growth curve were estimated using the Preece–Baines growth model. Growth rates were estimated for both groups from the mixed-longitudinal data.

Results: Estimated ages at peak height velocity (PHV) (13–13.5 yr) and mean PHV (6.2–6.4 cm·yr-1) for the advanced- and intermediate-level gymnasts suggest that these gymnasts were later maturing and experienced a blunting of the growth spurt relative to reference values for U.S. youth. Comparison of growth velocities by pubertal status revealed that height velocity was lower in the advanced- versus the intermediate-level peripubertal gymnasts, which was due to a significant reduction in sitting height velocity (2.3 vs 3.1 cm·yr-1, P. < 0.05). No marked acceleration in height or sitting height velocity was detected in the advanced-level gymnasts from pre- to peripuberty. Inspection of individual growth rates revealed that over 35% of the pre- and peripubertal gymnasts experienced growth faltering (height velocity less than 4.5 cm·yr-1) during follow-up.

Conclusion: Advanced–and intermediate–training level competitive female gymnasts tend to exhibit an adolescent growth spurt that is similar in timing and tempo to short, normal, slowly maturing girls, but the high frequency of growth faltering suggests that training may alter the tempo of growth and maturation in some, but not all, female gymnasts.

The reality of information systems research

The examination of a practical issue with a web site has led, in this paper, directly to the consideration of the need for, and an assessment of the impact of, an approach based on fundamental theories of ‘what is’, to examine what information systems research is and the relations of its component areas of endeavour. The paper presents an examination of the use of the philosophical field of ontologies, and specifically the use of the ontological approaches upon which to base categories of information systems research activities. This theoretical analysis is intended to be used as the basis from which to develop a methodology to undertake the development of the categorial scheme for the web site that initiated the research.

A hermeneutic analysis of the Denver international baggage handling system

This paper attempts to demonstrate the principles of hermeneutics in an effort to understand factors affecting Information Systems (IS) projects. As hermeneutics provides a systematic method of interpreting text from multiple information sources, thus, Information Systems being prima facie defined and documented as text documents, are eminently suited for this mode of investigation. In this paper, we illustrate hermeneutics by analysing a sample case study document describing a well known project of Denver International Airport (DIA) Automated Baggage Handling System, which was extensively reported in IS and management press and studied by Montealegre and his colleagues (Montealegre, Nelson, Knoop, & Applegate, 1999, p553-554). As a result of the hermeneutic approach to the analysis of this document, a new "flexibility" factor has been discovered to play an important, yet unreported, role in the DIA system demise. In the DIA case, the observed flexibility factor influenced the quality of the interaction between the actors, the prevailing environment and the information systems.

Schooling, normalisation, and gendered bodies : adolescent boys' and girls' experiences of gender and schooling

Dominant discourses construct boys and girls as two homogenous groups in need of particular, and uniform, kinds of interventions (Martino, Mills, & Lingard, 2005, Mills, Martino, & Lingard, 2004; Jones & Myhill, 2004). The boys and girls themselves, however, tell a much more complex story and challenge us to consider very different implications for addressing gender conformity and, more broadly, diversity in schools. In this chapter, the voices of students are used as text to explicate, first, how issues of gender, sexuality, social class, ethnicity and the body are implicated and interweave in girls’ and boys’ social experiences of schooling; and second, what the implications of this interweaving might be for addressing diversity in schools (Connell, 1995; 2002; Martino, 1999, 2000; Pallotta-Chiarolli, 1995, 1998, 2000, 2005). This work draws on and elaborates further our previous published research that investigates issues of gender and schooling. It locates such research within the broader international context of studies conducted into issues of gender and schooling that document student perspectives and voice (Fine & Weiss, 2003; Ferguson, 2001; Renold, 2003; Mac an Ghaill, 1994; Lees, 1993; Ornstein, 1995; Thorne, 1993; Mills, 2001; Hey, 1997; Willis,1977; Walker, 1988). The use of student voice as text is considered within that broader context and highlights the significance of gender regimes and power relations in students’ lives at school (Martino & Pallotta-Chiarolli, 2005; 2003; 2002; 2001; Pallotta-Chiarolli, 1998). We illustrate the extent to which the risky business of ‘fitting in’ involves negotiations around normative and transgressive masculinities and femininities and how such practices intersect with sexuality, race/culture, class, and geographical location (see James, 2003; Kumashiro, 2002).

Indexing research: an approach to grounding ingarden's ontological framework

Attempts to produce an adequate and long-lived subject indexing system for information systems research have failed. In this paper we seek to address this by proposing an approach by which the terms expressed in research literature, such as those in the information systems literature, can be systematically and meaningfully categorised. The approach is significant in that it draws upon rigorous and philosophically compatible bodies of work in two areas. Firstly, we draw on work addressing the nature, existence, and categorisation of literary expression found in research papers (Roman Ingarden’s ontological analysis of the scientific work of art). Secondly, we draw from qualitative research methods addressing how meaningful categories can be analysed from text and related to each other (grounded theory). The resulting approach has the potential to be applied in many scientific disciplines beyond information systems, and to form the intellectual core of an information tool in e-research.

Using protocol analysis to explore the creative requirements engineering process

Protocol analysis is an empirical method applied by researchers in cognitive psychology and behavioural analysis. Protocol analysis can be used to collect, document and analyse thought processes by an individual problem solver. In general, research subjects are asked to think aloud when performing a given task. Their verbal reports are transcribed and represent a sequence of their thoughts and cognitive activities. These verbal reports are analysed to identify relevant segments of cognitive behaviours by the research subjects. The analysis results may be cross-examined (or validated through retrospective interviews with the research subjects). This paper offers a critical analysis of this research method, its approaches to data collection and analysis, strengths and limitations, and discusses its use in information systems research. The aim is to explore the use of protocol analysis in studying the creative requirements engineering process.