King's College, Aberdeen

About: King's College, Aberdeen is a based out in . It is known for research contribution in the topics: Poison control & Sedimentary depositional environment. The organization has 712 authors who have published 918 publications receiving 25421 citations. The organization is also known as: King's College, Aberdeen & The University and King's College of Aberdeen.

The effect of flow and context on in-vivo positive mood in digital gaming

Abstract: Although research extols the positive effects of social gaming, the dynamic processes underlying these effects remain unclear. In a hitherto unused approach in this field, we utilised a Smartphone App to model the effect of in-vivo flow and gaming context on positive mood. We also explored individual-level factors including demographic gaming variables (average hours per week playing, gamer-type, preferred type of play) and Big-5 personality traits. Data was obtained from 41 gamers producing a total of 2796 data-points. Multi-level modelling revealed positive mood was associated with in-vivo reports of flow in gameplay, current context and individual-level variance in the number of hours typically spent engaged in playing per week. Specifically, in-vivo positive mood was higher for players when playing online with friends (relative to those playing solo). Higher reports of flow were, nonetheless, associated with decreases in positive mood. Finally, players who indicated playing less frequently experienced higher positive mood, relative to those who played more. These findings support and extend previous work which explores the emotional affordances of gaming and highlight the importance of obtaining situated measures of experiences. They demonstrate that positive mood in gaming is not static, but changeable depending on one's current gaming environment and flow.

Geochemical correlation in deltaic successions: A reality check

Abstract: Whole-rock geochemical analysis can aid the stratigraphic correlation of faunally barren successions. Compared to petrographic techniques or heavy-mineral separations, such analysis is quick and objective, yet rarely has the reliability of the method been tested against unequivocal correlations. We have applied it to the Kenilworth Member of the Upper Cretaceous Blackhawk Formation, a well-exposed and easily correlated 100-m-thick unit in the deltaic successions of the Book Cliffs, Utah, United States. This is the first evaluation of geochemical analysis as an aid to sequence stratigraphic interpretation at the parasequence scale. From the geochemistry alone, it is not possible with statistical confidence to separate individual parasequences or systems tracts nor the fluvial incised valley from the marine shoreface units. The magnitude of geochemical variation in a single sandstone bed over a 30 m lateral traverse is as great as vertically through an entire parasequence. Y, Nb, Rb, and Ti abundances are inversely correlated with grain size. Thus geochemical signatures follow sedimentological trends, and distal parts of a parasequence appear distinct from proximal parts. Y ratios compensate for this grain size effect but introduce confusing distortions for elements such as Zr that are not correlated with grain size. Contrary to some predictions, Zr is as common in the finest-grained units as the coarsest, and Sr is not correlated with Ca. In some sections Sr is also inversely. correlated to grain size and cannot be used as an indicator for cement abundance.

Climatic and eustatic controls on the development of a Late Triassic source rock in the Jameson Land Basin, East Greenland

Abstract: Complex environmental controls have influenced deposition of the Graklint Beds, a prospective oil- and gas-prone Late Triassic (Mid-Carnian) source rock in the Jameson Land Basin, East Greenland. The identification of a Late Triassic source rock is significant for hydrocarbon exploration in the North Atlantic region. Detailed sedimentological analysis, biostratigraphy and geochemical analysis provide insights into the controls on source rock development and have wider implications for palaeoclimatic trends and palaeogeographical reconstructions of the North Atlantic at this time. The Graklint Beds were deposited in a predominantly lacustrine setting during a phase of climatic cooling that can be ascribed to the ‘Mid-Carnian Pluvial Event’. This further extends the evidence for the global effect of such climatic perturbations and furthermore highlights the potential for the use of climatic events for global and regional correlation between varying environmental settings. Evidence is also recorded for marine ingression, which resulted in the precipitation of magadiite (NaSi 7 (OH) 3 .3H 2 O) and the brief influx of a marine fauna. This provides the most southerly record of marine influence from the Boreal Ocean at this time and has important implications for palaeoenvironmental reconstructions and correlation in the region.