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Auteur J. MATIAS |
Documents disponibles écrits par cet auteur (18)
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OEDT = EMCDDA ; D. THANKI ; J. MATIAS ; P. GRIFFITHS ; A. NOOR ; D. OLSZEWSKI ; R. SIMON ; J. VICENTE | Lisbon : OEDT / EMCDDA | Thematic Papers, ISSN 1725-5767 | 2012This report brings together, for the first time in Europe, an integrated overview of the prevalence of intensive cannabis use, defined as daily or almost daily cannabis use (use on 20 or more days in the month preceding survey). Self-reported da[...]Rapport
OEDT = EMCDDA ; J. MOUNTENEY ; A. BO ; A. CUNNINGHAM ; I. GIRAUDON ; J. MATIAS ; A. PIRONA ; N. VAN GELDER ; A. RYBARSKA ; L. VANDAM ; P. GRIFFITHS | Lisbon : OEDT / EMCDDA | Rapid communication | 2016This report explores the recent resurgence in use of MDMA in Europe and increased availability of high-strength MDMA tablets, crystals and powders. It notes that the picture is not uniform across European countries, and while overall the region’[...]Article : Périodique
Purpose: The purpose of this paper is to assess the relevance of cryptomarkets, characteristics of purchasers and possibilities for survey research by approaching users directly on cryptomarkets. Design/methodology/approach: Cross-country compa[...]Article : Périodique
Background: Social networks determine the availability of drugs, which in turn affects use patterns. Yet, there is some limited evidence that as frequency of drug use increases, people who use drugs increasingly utilize drug dealers. Further, fe[...]Article : Périodique
K. SKARUPOVA ; N. SINGLETON ; J. MATIAS ; V. MRAVCIK |Background: The European Web Survey on Drugs aimed to obtain in-depth data on consumption of cannabis, ecstasy/MDMA, cocaine, and amphetamines in different populations of drug users in 16 European countries. This paper examines test-retest relia[...]Article : Périodique
H. LOPEZ-PELAYO ; S. MADERO ; L. GREMEAUX ; S. RONKA ; J. MATIAS |The aim of the current study is to assess if the patterns of use, socio-demographic characteristics, and use of other drugs differ among people who only use cannabis and those that use synthetic cannabinoids. Data from the second wave of the Eur[...]Article : Périodique
S. M. HELMER ; G. BURKHART ; J. MATIAS ; C. BUCK ; F. ENGLING CARDOSO ; J. VICENTE |Background: Substance use in European adolescents remains a serious health concern. Assessing what affects adolescents' substance use is crucial for implementing effective prevention. This study aims to examine alcohol and cannabis use-related b[...]Article : Périodique
L. MONTANARI ; R. TELTZROW ; S. VANMALDEREN ; R. RANIERI ; J. A. MARTIN PELAEZ ; L. VANDAM ; J. MOUNTENEY ; A. PIRONA ; F. MEROUEH ; I. GIRAUDON ; J. MATIAS ; K. SKARUPOVA ; L. ROYUELA ; J. MOREL D'ARLEUX |Purpose: This paper aims to describe the impact of the COVID-19 containment measures on the provision of drug treatment and harm reduction services in European prisons in15 countries during the early phase of the pandemic (March-June 2020). Des[...]Article : Périodique
J. MATIAS ; E. KALAMARA ; F. MATHIS ; K. SKARUPOVA ; A. NOOR ; N. SINGLETON |Background: Most comparative drug policy analyses utilise measures of drug use, often from general population surveys (GPS). However, the limitations of GPS are well-recognised, including the small numbers of people who use illicit drugs sampled[...]Rapport
OEDT = EMCDDA ; J. MOUNTENEY ; E. ATKIN ; M. RUIZ ; A. BO ; J. MATIAS ; I. JEKABSONE ; L. VANDAM ; A. PIRONA | Lisbon : OEDT / EMCDDA | Manuals | 2018This publication is a user-friendly guide, taking the reader, step by step, through the trendspotter methodology developed by the EMCDDA to explore emerging drug trends, new patterns of use, developing drug markets and technologies. The trendspo[...]Chapitre
Les usages de substances en Europe sont inégalement répartis selon les territoires et concernent souvent les jeunes générations. C'est particulièrement vrai à propos du cannabis et des substances stimulantes et hallucinogènes (les opiacés étant [...]