27 documents found, page 1 of 3
Comparing NPS users in nightlife settings and online communities
Henriques, S.; Silva, J. P.; Van Hout, M. C.; Hearne, E.; Benschop, A.; Korf, D.; Bujalski, M.; Wieczorek, Ł.; Werse, B.; Felvinczi, K.; Dąbrowska, K.This article reports on the comparison between two groups of New Psychoactive Substances (NPS) users: users in nightlife settings and users in online communities. A quantitative survey was conducted in six EU countries (Germany, Hungary, Ireland, Netherlands, Poland, and Portugal) within a convenience sample of adult (18 years+) current (12-month) NPS users. Participants self-completed either a pen-and-paper or...
The synthetic cannabinoids ADB-FUBINACA and AMB-FUBINACA accelerate SH-SY5Y pro...
Dias-da-Silva, D.; Roque-Bravo, R.; Silva, J. P.; Carmo, H.; Carvalho, F.Background: Synthetic cannabinoids (SC), one of the most popular groups of new psychoactive substances, display a broad pharmacological action close to that of D9-tetrahydrocannabinol (THC). However, while THC is a partial agonist of the cannabinoid receptors type 1 and 2 (CB1 and CB2, respectively), SC present a full and more potent agonistic activity on these receptors [1]. Since new evidence demonstrates tha...
Each person in their place: the ‘praxe’ as a ritual of integration, stratificat...
Silva, J. P.; Mineiro, J.; Estanque, E.; Sebastião, J.; Lopes, J. M. T.Every year, in a variety of countries, current higher education students welcome newcomers with a set of ritualised practices in which the latter submit to the former through tests that entail varying degrees and types of violence, but also an important element of playfulness. In Portugal, these rituals are known as ‘praxe académica’. This is a complex and multidimensional social phenomenon whose origins go bac...
Nanostructured Cr(N,O) based thin films for relative humidity sensing
Ferreira, A.; Silva, J. P.; Correia, Daniela Maria Silva; Pereira, N.; Correa, M. A.; Lanceros-Méndez, S.; Vaz, F.This work presents multifunctional coatings prepared by Physical Vapor Deposition with Oblique Angle deposition with relative humidity sensing capability. Thin films based on chromium oxynitride (Cr(N,O)) were prepared with zigzag nanostructures and varying the amount of nitrogen and oxygen in order to enhance the humidity response. The obtained Cr(N,O) thin films show an increasing amount of oxygen as the O2/N...
Artêmia: otimização da taxa de eclosão por método químico
Silva, J. P.Submitted by Alison Souza (alisonsouza@ufgd.edu.br) on 2020-01-20T16:13:24Z No. of bitstreams: 1 JessicaPereiradaSilva.pdf.pdf: 675349 bytes, checksum: 601b1a999d6b2c669e4b946dad9384c7 (MD5); Made available in DSpace on 2020-01-20T16:13:24Z (GMT). No. of bitstreams: 1 JessicaPereiradaSilva.pdf.pdf: 675349 bytes, checksum: 601b1a999d6b2c669e4b946dad9384c7 (MD5) Previous issue date: 2019-10-24; Este trabalho teve...
Extreme events are more likely to affect the breeding success of lesser kestrel...
Marcelino, J.; Silva, J. P.; Gameiro, J.; Silva, A.; Rego, F. C.; Moreira, F.; Catry, I.Climate change is predicted to severely impact interactions between prey, predators and habitats. In Southern Europe, within the Mediterranean climate, herbaceous vegetation achieves its maximum growth in middle spring followed by a three-month dry summer, limiting prey availability for insectivorous birds. Lesser kestrels (Falco naumanni) breed in a time-window that matches the nestling-rearing period with the...
Discriminative characteristics of marginalised novel psychoactive users: a tran...
Felvinczi, K.; Benschop, A.; Urbán, R.; Van Hout, M. C.; Dąbrowska, K.; Hearne, E.; Henriques, S.; Kaló, Z.; Kamphausen, G.; Silva, J. P.; Wieczorek, L.New psychoactive substances (NPS) continue to be considered as a major public health concern in many European countries. The study was implemented within the framework of a transnational project of six European countries (Germany, Hungary, Ireland, Netherlands, Poland, Portugal). Our aim here is to report on the distinct and differentiating characteristics of marginalised NPS users. Three subgroups of a total o...
Uma análise sobre as políticas públicas e os mercados das Novas Substâncias Psi...
Henriques, S.; Guerreiro, M. D.; Silva, J. P.O presente texto retrata, contextualiza e discute o fenómeno das novas substâncias psicoativas. Dá especial enfoque à realidade portuguesa e destaca as políticas públicas, os mercados e contextos, embora fazendo o seu enquadramento em termos europeus e internacionais, já que se trata de uma problemática global. As Novas Substâncias Psicoativas (NSP) são um fenómeno emergente que consiste no aparecimento ou reap...
Tank and field experiments of short-range acoustic propagation through a seagra...
Felisberto, Paulo; Silva, J. P.; Jesus, Sergio; A.J. Silva; Silva, A.T.; Silva, J.; Santos, R.; Ferreira, H.; Pousao, P.Aiming at monitoring the bubbles released during seagrass photosynthesis in different conditions, three experiments were made: two in an outdoor tank and one in the field. The outdoor tank experiments were conducted in winter and summer conditions with Cymodocea nodosa plants transplanted from a nearby meadow. The field experiment took place in September 2018 on a Posidonia oceanica meadow, where bubbles format...
Antiguidade e poder simbólico na praxe académica
Silva, J. P.; Estanque, E.; Mineiro, J.; Sebastião, J.; Lopes, J. M. T.A praxe académica consiste num conjunto de rituais iniciáticos que abrange um largo número de estudantes do ensino supe- rior português. Dela faz parte o exercício de poder assimétrico dos alunos mais antigos sobre os recém-chegados, uma lógica assimétrica que impõe uma hierarquia fundada na antigui- dade. Este artigo analisa as manifestações, a origem e os meca- nismos de legitimação e reprodução deste poder. ...