114 research outputs found
Implicit Social Attunement & Alcohol Use: The Effect of Peer Feedback on Willingness to Drink in Social Settings
No full textThe role of cultural attitudes towards cannabis in working memory related brain activity in (near-) daily cannabis users
No full textMost of our daily life behaviours are affected by culture and regional differences in behaviours are often guided by local cultural factors. The rising field of cultural neuroscience points towards the complex effects of culture on the neurobiological underpinnings of behaviour, including substance use and abuse. While there is substantial evidence that cognitive processes play a role in substance use disorder and that cultural factors could influence both behaviour and brain processes, no research has been conducted to assess how cultural factors play a role in the cognitive processes underlying substance use. In this study we assessed the association between WM performance and related brain activity and how cultural attitudes towards cannabis use affect these associations in (near-)daily cannabis users from Texas (TX-US) and the Netherlands (NL)
Cross-sectional and longitudinal associations of cannabis use with cognitive functioning in individuals with a Cannabis Use Disorder: the moderating role of nicotine
No full textImplicit Social Attunement & Alcohol Use: The Effect of Peer Feedback on Willingness to Drink in Social Settings
No full text
Author's personal copy Forecasting VaR using analytic higher moments for GARCH processes
No full textThis article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues. Other uses, including reproduction and distribution, or selling or licensing copies, or posting to personal, institutional or third party websites are prohibited. It is widely accepted that some of the most accurate Value-at-Risk (VaR) estimates are based on an appropriately specified GARCH process. But when the forecast horizon is greater than the frequency of the GARCH model, such predictions have typically required time-consuming simulations of the aggregated returns distributions. This paper shows that fast, quasi-analytic GARCH VaR calculations can be based on new formulae for the first four moments of aggregated GARCH returns. Our extensive empirical study compares the CornishFisher expansion with the Johnson SU distribution for fitting distributions to analytic moments of normal and Student t, symmetric and asymmetric (GJR) GARCH processes to returns data on different financial assets, for the purpose of deriving accurate GARCH VaR forecasts over multiple horizons and significance levels
Textualizációs eljárások, tipológiai kísérletek, digitális adatbázisok
Get PDFThe author in the first part of her article presents in what
way the textological features of the genre of incantation and
the (often implicitly ) posed questions of the researchers
behind the publications of incantations have influenced the
mode of classic editions of texts, primarily the typological
issues, and in what way all these factors determine
interpretative possibilities. Then, along the dimensions of
comparability defined by Lauri Honko (phenomenology of
tradition, the historicity of tradition, and ecology of
tradition), she summarizes recent endeavours of systematisation
within incantation studies and points out the fallacies and
shortcomings of typologies, drawing attention to the
fundamentally incommensurable nature of the various approaches.
In the second part of the article the author, briefly
presenting the responses given by computational folkloristics
to the problems of textology, typology and comparatism, comes
to the conclusion that instead of national and international
incantation catalogues, the elaboration of an international
guide to textology standardizing the textualisation techniques
of digital editions of incantations would be a more important
milestone for comparative studies. To facilitate this objective
the author presents a set of multidimensional textological
features for digital databases of verbal charms (subject to
further discussions)
„A boldog békeidők” és örökségük : A 19. század béketeremtő diplomáciai eszközeinek átalakulása és modern kori jelentősége, fókuszban a konferenciadiplomáciával
No full textA tanulmányban a konferenciadiplomácia mint diplomáciai eszköz és annak a béke percepciójához fűződő kapcsolatát mutatom be 19. századi keretek között. A vizsgálódás fő intervalluma az 1815 és 1914 közötti időszak, mely jelentős újításokat hozott a nemzetközi együttműködés rendszerében, hosszabb távon hozzájárulva a ma is működő rendszer kialakításához. A vizsgált korszak törekvései azonban rövidtávon a 20. század eleji események tekintetében nem bizonyultak eredményesnek. Ezzel kapcsolatban a háttérben húzódó okokra keresem a választ. | This study presents the notion of conference diplomacy as a diplomatic tool and its relation to the perception of peace within the framework of the 19th century. The primary interval of the investigation is the period between 1815 and 1914, which brought significant innovations into the system of international cooperation and in the longer term contributed to the formation of the system that still operates today. However, the efforts of the examined era did not prove to be successful in the short-term concerning the events of the beginning of the 20th century. In this regard, the author of the article is looking for an answer to the underlying reasons
Genetic variation and its relevance to the study of population structure of marine turtles
No full textThis thesis was scanned from the print manuscript for digital preservation and is copyright the author.
Researchers can access this thesis by asking their local university, institution or public library to
make a request on their behalf. Monash staff and postgraduate students can use the link in the References field
Direct Effects of Cannabis Intoxication on Motivations for Softer and Harder Drug Use: An Experimental Approach to the Gateway Hypothesis
Get PDFAims: This study experimentally tested whether there is a gateway-type effect of cannabis administration on tobacco and cocaine motivation and whether motivational responses predicted use 6 months later.Methods: A 2 (condition: active cannabis vs. placebo joint)x3 (substance stimulus type: tobacco, cannabis, and cocaine) factor within-subjects design for both implicit and explicit motivation. Both experimental sessions were conducted in a cannabis dispensary ("coffeeshop") in Amsterdam and were separated by similar to 1 week, followed by a 6-month online follow-up. Eighty-five participants between 18 and 27 years of age (57% male), who used cannabis, tobacco, and cocaine <15 times per month, participated in session 1 (session 2: N=79 and follow-up: N=81). Counterbalanced over sessions, participants smoked an active and a placebo joint following a paced puffing procedure. Before and after smoking, craving and avoidance (explicit motivation) were assessed using visual analog scales, and after smoking, the stimulus response compatibility test was completed to assess approach biases (implicit motivation). Self-reported intoxication and similarity to their usual smoking experience were assessed at the end of both sessions. Self-reported frequency/quantity and dependence symptoms for tobacco, cannabis, and cocaine were assessed at all time points. A linear mixed model approach was used to assess the effects of condition, substance stimulus type, and their interactions on explicit and implicit motivation.Results: In the active condition, participants reported higher levels of intoxication and an experience more similar to their usual smoking experience than in the placebo condition. There was no significant effect of condition, substance type, or their interaction on approach bias. Participants exhibited increased cannabis craving during the placebo condition only and increased explicit cannabis avoidance during the active condition only. Explicit tobacco avoidance decreased during both conditions. Baseline measures did not predict use at 6-month follow-up.Conclusions: In light users, cannabis intoxication did not affect implicit and explicit tobacco or cocaine motivations. Tobacco avoidance decreased regardless of condition, indicating that the cannabis cue-rich setting-rather than tetrahydrocannabinol itself-may momentarily increase the likelihood to smoke tobacco. However, motivation at baseline did not predict use 6 months later, deeming any gateway-like function unlikely
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