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Journal of Behavioral Addictions
Authors: Antonius J. van Rooij PhD, Daria J. Kuss, Mark D. Griffiths, Gillian W. Shorter, Tim M. Schoenmakers, and Dike van de Mheen

Abstract

Aims

The current study explored the nature of problematic (addictive) video gaming (PVG) and the association with game type, psychosocial health, and substance use.

Methods

Data were collected using a paper and pencil survey in the classroom setting. Three samples were aggregated to achieve a total sample of 8478 unique adolescents. Scales included measures of game use, game type, the Video game Addiction Test (VAT), depressive mood, negative self-esteem, loneliness, social anxiety, education performance, and use of cannabis, alcohol and nicotine (smoking).

Results

Findings confirmed problematic gaming is most common amongst adolescent gamers who play multiplayer online games. Boys (60%) were more likely to play online games than girls (14%) and problematic gamers were more likely to be boys (5%) than girls (1%). High problematic gamers showed higher scores on depressive mood, loneliness, social anxiety, negative self-esteem, and self-reported lower school performance. Nicotine, alcohol, and cannabis using boys were almost twice more likely to report high PVG than non-users.

Conclusions

It appears that online gaming in general is not necessarily associated with problems. However, problematic gamers do seem to play online games more often, and a small subgroup of gamers — specifically boys — showed lower psychosocial functioning and lower grades. Moreover, associations with alcohol, nicotine, and cannabis use are found. It would appear that problematic gaming is an undesirable problem for a small subgroup of gamers. The findings encourage further exploration of the role of psychoactive substance use in problematic gaming.

Open access
Central European Geology
Authors: János Haas, Tamás Budai, István Dunkl, Éva Farics, Sándor Józsa, Szilvia Kövér, Annette E. Götz, Olga Piros, and Péter Szeitz

of the andesite dike found in core Bö-1 ( Farics et al. 2015 ). In places, the Upper Eocene conglomerate is overlain by a shallow marine Discocyclina-bearing limestone (Szépvölgy Formation), e.g., on the Törökugrató Hill. However, Triassic

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Journal of Radioanalytical and Nuclear Chemistry
Authors: L. Tandon, E. Hastings, J. Banar, J. Barnes, D. Beddingfield, D. Decker, J. Dyke, D. Farr, J. FitzPatrick, D. Gallimore, S. Garner, R. Gritzo, T. Hahn, G. Havrilla, B. Johnson, K. Kuhn, S. LaMont, D. Langner, C. Lewis, V. Majidi, P. Martinez, R. McCabe, S. Mecklenburg, D. Mercer, S. Meyers, V. Montoya, B. Patterson, R. Pereyra, D. Porterfield, J. Poths, D. Rademacher, C. Ruggiero, D. Schwartz, M. Scott, K. Spencer, R. Steiner, R. Villarreal, H. Volz, L. Walker, A. Wong, and C. Worley

Abstract  

The goal of nuclear forensics is to establish an unambiguous link between illicitly trafficked nuclear material and its origin. The Los Alamos National Laboratory (LANL) Nuclear Materials Signatures Program has implemented a graded “conduct of operations” type analysis flow path approach for determining the key nuclear, chemical, and physical signatures needed to identify the manufacturing process, intended use, and origin of interdicted nuclear material. This analysis flow path includes both destructive and non-destructive characterization techniques and has been exercized against different nuclear materials from LANL’s special nuclear materials archive. Results obtained from the case study will be presented to highlight analytical techniques that offer the critical attribution information.

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. – Mineralium Deposita 38/2 , pp. 169 – 184 . Käpyaho , A. , T. Ahtola , R. Alviola 2007 : Whole-rock geochemical characteristics of a lithium pegmatite dike: a case example

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The idiom of the scales of justiceis commonly known and widely used. Iustitia can frequently be seen in different representations holding scales in her hand. The scales as a means or a symbol of justice (justness) or the administration of justice can be encountered in various places in Greek literature, one of its earliest instances being the Homeric Hermes' Hymn (Dikés talanta). According to these loci Zeus holds the scales of Diké, that is to say, the scales of justice in his hand. In the Iliad (23, 109-213) one may come across a scene presented in context, thus suitable for being more amply analysed, in which Zeus is pronouncing justice over the heroes using a pair of scales. In search of the meaning of Dikés talanta, this study tries to clarify the concept of law and justice (justness) in Homeric epic (I.), then by a structural (II.) and comparative analysis (III.) of certain lines of the weighing scene, decisive in the combat of Achilles and Hector, it formulates a few remarks on the origin and meaning of the concept of the scales of justice. One cannot claim that this idea of Egyptian religion had been transferred in its entirety into Greek thinking, but it is not surprising, as one can barely encounter an unaltered Egyptian borrowing in Greek mythological thinking. Nonetheless, some Egyptian influence, possibly with Cretan transmission, can be detected in the development of the Greek versions of psykhostasia and kerostasia. Pictorial as well as textual manifestations of such influence can be found on the one hand in vase-paintings, and on the other hand-undergoing a specific alteration of aspect in the form of kerostasia-in Homer, who paved the way for the scales of justice of Zeus and Iuppiter to become the symbol of Diké and Iustitia, and subsequently of the administration of justice itself.

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Abstract  

Chlorobis/-diketonato/ oxotechnetium/V/ complexes [TcOCl/-dik/2, -diketone=acetylacetone, benzoylacetone and dibenzoylmethane] were newly synthesized using macroamount of99Tc. These complexes were further separated into geometrical isomers. Furthermore, an improvement of the yields for the syntheses of tris/-dike-tonato/technetium/III/ complexes [Tc/-dik/3, -diketone=acetylacetone, benzoylacetone and 2-thenoyltrifluoroacetone] was examined using Tc/III/-thiourea complexes as a starting material.

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Abstract  

Paleozoic black shales of the Saxothuringikum (Germany) with an average Corg. -content of 0.01 to 20 mass% were investigated with regard to the nature of organic matter. A special pyrolysis technique (DEGAS) was used for a temperature resolved analysis of different hydrocarbons (HC) and the simultaneous detection of inorganic volatiles during heating under vacuum up to 1450C. The presented data indicate three different forms of organic matter occurring in the investigated black shales (bitumen, kerogen and pyrobitumen). Finally the influence of an igneous dyke intrusion on the alteration of the organic matter was examined.

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Abstract  

An accurate and simple method has been developed for the determination of Pt, Ru, Ir and other elements employing instrumental neutron activation analysis (INAA). Nondestructive analysis has been carried out for the determination of these elements in different rock samples such as Dolerite, Dyke Dolerite, Country Basalt, Hyaloclastite, Trachyte, Ijolite, Spillite, Diorite and Lamprophyre from various locations like Daman, Tapti, Murud, Talasari, Ranala and Bassein in Maharashtra state. High flux provided by the CIRUS reactor (1×1013 n cm–2s–1) has been used for thermal neutron bombardment followed by radioassaying of the (n,) products on a HPGe detector coupled to a PC-based MCA unit.

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The 64 lines of the new Hypereides speech exhibit the argumentation and the legal position of a guardianship case ( dikē epitropēs ). Its central legal topic is the leasing ( misthōsis ) of an orphan’s estate. The archon was obliged to assemble a court sitting ( dikastērion ) upon the guardian’s application, and the estate (the oikos ) was auctioned to the highest bidder, who could also be the guardian himself. In the study I show that the auction had the character of a diadikasia , the highest bid meant the greatest estimation of the value of the oikos by the bidders. Concerning the prosecution ( phasis ) of an orphan’s estate I demonstrate that the prosecuter’s aim is not the punishment of the guardian, rather he wishes to lease the oikos himself. Thus he initiates the procedure of the misthōsis described above.

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Abstract

This paper presents a case study to illustrate the role played by geologic structures in the design and construction of major transportation infrastructure, in a setting of moderately deformed Paleozoic sedimentary rocks in eastern Australia. It describes a complex development of folding, faulting and jointing that has resulted in significant inclination of beds, juxtaposition of strata and affected the weathering characteristics of a wide range of rock types. The sequence, which displays an upward transition from marine to terrestrial sediments, comprises an interbedded succession of conglomerate, sandstone, shale and erratic volcanics and crystal tuff. Unfavorable relationships between major excavation faces, inclined beds and jointing have resulted in problems with the stability of road cuttings. Also, the presence of faults and dykes at various scales has had a significant effect on weathering and rock strength. The paper demonstrates the importance of the choice of alignment at design stage, and how a basis of good structural interpretation and geologic mapping can be used to avoid problems during construction and issues with ongoing maintenance.

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