1,400,686 research outputs found
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Problematic technology use during adolescence: why don’t teenagers seek treatment?
No full textIn recent issues of Education and Health, I have briefly reviewed the empirical evidence relating to problematic use of technology by adolescents including online video gaming (Griffiths, 2014), social networking (Griffiths, 2013a; Kuss & Griffiths, 2011), and mobile phone use (Griffiths, 2013b). Most of the research studies that have examined ‘technological addictions’ during adolescence have indicated that a small but significant minority experience severe problems resulting in detriments to education, physical fitness, psychological wellbeing, and family and personal relationships (Griffiths, 2010; Kuss, Griffiths, Karila & Billieux, 2014). Given these findings, why is it that so few teenagers seek treatment? This article briefly outlines a number of reasons why this might be the case by examining other literature on adolescent drug use and adolescent gambling (e.g., Chevalier & Griffiths, 2005; 2005; Griffiths, 2001). Three different types of explanation are discussed: (i) treatment-specific explanations, (ii) research-related explanations, and (iii) developmental and peer group explanations
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Online 'penny auction' sites: regulation needed
No full textOnline 'penny auction' sites allow bidders to win expensive items at a price that appears unbelievably cheap, however users are charged by the site for each bid that they place. Dr, Mark Griffiths, a Professor of Gambling Studies at Nottingham Trent University, examines how 'penny auction' sites operate, and whether they should be regulated by the Gambling Commission
Joan Griffiths - The Big Picture
No full textText of a video conversation with producer Joan Griffiths well known for her discovery of Michael Rosen about a photograph of School Radio staff in the 1980s
Jim Griffiths Oral History Interview
No full textAn interview with Jim Griffiths who founded the Citrus Growers Association. The interview focuses on Griffiths\u27 view of Florida\u27s citrus industry within the international market. Griffiths discusses his advocacy efforts for a controlled market and stable citrus prices. He comments on land use policies, urban sprawl, and Florida\u27s water management policy
Photo of Mary (née Basha) Griffiths as a child.
No full textA photograph of Mary (née Basha) Griffiths as a child
Thomas Griffiths
No full textGriffiths recalls that Myers had the urge to collect and built collections purposefully, even to the point of paying a higher price to fill a gap. Recalls Myers discarding books, one of which he has, but suspects it was only if Minor had duplicates. Reflects on the influence Myers had on faculty, through emphasis on and support for scholarship, and on students and facilities. Also discusses being present during meetings about the book auction, the last conversation he had with Myers and the one book he received as a gift after Myers\u27 illness. The idea of wearing chrysanthemums at the memorial service for Myers was Griffiths\u27
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Theoretical Loss and Gambling Intensity (Revisited): A Response to Braverman et al. (2013)
No full textIn this paper, we provide a brief response to Braverman and colleagues’ (2013) critique of our ‘Theoretical Loss’ metric as a measure of monetary gambling intensity (Auer & Griffiths, 2013; Auer, Schneeberger & Griffiths, 2012). We argue that ‘gambling intensity’ and ‘gambling involvement’ are essentially the same construct as descriptors of monetary gambling activity. Additionally, we acknowledge that playing duration (i.e., the amount of time – as opposed to money – actually spent gambling) is clearly another important indicator of gambling involvement – something that we have consistently noted in our previous studies including our empirical studies on gambling using behavioural tracking data. Braverman and colleagues claim that the concept of Theoretical Loss is nullified when statistical analysis focuses solely on one game type as the house edge is constant across all games. In fact, they state, the correlation between total amount wagered and Theoretical Loss is perfect. Unfortunately, this is incorrect. To disprove the claim made, we demonstrate that in sports betting (i.e., a single game type), the amount wagered does not reflect monetary gambling involvement using actual payout percentage data (based on 52,500 independent bets provided to us by an online European bookmaker). After reviewing the arguments presented by Braverman and colleagues, we are still of the view that when it comes to purely monetary measures of ‘gambling intensity’, the Theoretical Loss metric is a more robust and accurate measure than other financial proxy measures such as ‘amount wagered’ (i.e., bet size) as a measure of what players are prepared to financially risk while gambling
Eliciting expert judgement for the probability of AUV loss in contrasting operational environments
No full textEach time an autonomous underwater vehicle (AUV)
is used in the sea there is a non-zero probability of
loss. Quantifying probability of loss is not an exact
science; therefore much depends on the fault history
of the vehicle, the operational environment and the
complex relationships between the consequences of
faults or incidents and the environment. While this
problem may be stated in scientific terms, in practice,
there is no solution through scientific means alone.
This is an example of ‘trans-science’. We suggest that
an approach based on the formal process of eliciting
expert judgement may be an effective means of
approaching this problem, as the process has been
used successfully for other trans-scientific questions.
The paper provides an introduction to the process of
eliciting expert judgement, outlines four exemplar
environments: coastal, open water, under sea ice and
under shelf ice, and gives a worked example of one
expert’s judgement on the probability of loss in the
four environments arising from a real fault with the
Autosub1 AUV. Using the fault history of the
Autosub3 AUV, included in the Annex, we ask
experts from among UUST attendees (and others) to
take part in this expert judgement elicitation. Based
on the results of this elicitation we aim to publish a
paper in the peer-reviewed literature
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