4,421 research outputs found
G. Scott MacLeod : Sacred Feminine and Masculine
No full text"Scott MacLeod’s The Sacred Feminine and Masculine: Labyrinthina exhibition deals with the sacred and spiritual. While the sources may be ancient, as is the dual yin-yang nature of masculine and feminine MacLeod captures, the exhibition functions as a total environment. Multi-media effects include video projection, and digitally manipulated photographs of men and women reflect the stages of life from birth to old age. MacLeod reinvigorates our interest in the symbolic sources for our own culture, long buried for many. Inadvertently we are reminded of how our culture has lost its sources, may not understand the sacred signs and symbols. As the paintings, photo-works, and videos in this show suggest, our belief systems are rooted in the world around us the cosmos and nature." -- p. [3]
The Sacred Feminine and Masculine : G. Scott MacLeod
No full text"The 'Sacred Feminine and Masculine' - has built upon previous methods and techniques while pursuing a new direction. With the help of Jessica Charbonneau's Photoshop skills, I have created 14 large (183 x 61 cm) mixed media photo-transfers on canvas that are mounted on stretchers. Half of the photographs are of the seven stages of feminine : birth, innocence, teen, maidenhood, motherhood, grandmother, and ekder. The seven other correspond to the stages of masculine." -- p. 7
The Lachine Canal : Past and Present : Paintings and Drawings by G. Scott MacLeod
No full text" For Lachine Canal : Past and Present, I studied Yvon Desloges and Alain Gelly’s book The Lachine Canal, Riding the Waves of Industrial and Urban Development 1860-1950 to get a better understanding of the people who settled in the Lachine Canal region, the technology they used, and the goods they manufactured. I created this exhibition to compare how the canal looked in the mid to late 1800s to how it appears today. For me, the value of studying history is the insight we gain into human nature and our past. In reflection we can learn how we may improve upon the way we do things in the future.[...] What I have tried to represent in The Lachine Canal: Past and Present is a comparative study of the canal’s past and present, focussing not simply on the canal and the surrounding architecture but on the memory and history of the people and companies who built the neighbourhoods that we know today as Lachine, LaSalle, Verdun, St- Henri, Côte Saint Paul, Griffintown, Little Burgundy, Point St-Charles, and the port of Old Montreal." -- p. [6, 8]
Comparison of hemodialysis, hemodiafiltration, and hemofiltration: Systematic review or systematic error? In reply
No full textWill opposites attract? Similarities and differences in students' perceptions of the stereotype profiles of other health and social care professional groups
No full textThe extent to which health and social care (HSC) students hold stereotypical views of other HSC professional groups is of great potential importance to team working in health care. This paper explores students' perceptions of different HSC professional groups at the beginning of their university programmes. Findings are presented from an analysis of baseline data collected as part of the New Generation Project longitudinal cohort study which is assessing the impact of interprofessional education over time on a range of variables including stereotyping. Questionnaires were administered to a cohort of over 1200 students from 10 different HSC professional groups entering their first year of university. Stereotypes were measured using a tool adapted from Barnes et al. (2000) designed to elicit stereotype ratings on a range of nine characteristics. The findings confirm that students arrive at university with an established and consistent set of stereotypes about other health and social care professional groups. Stereotypical profiles were compiled for each professional group indicating the distinctive characteristics of the groups as well as the similarities and differences between groups.
Midwives, social workers and nurses were rated most highly on interpersonal skills and on being a team player whilst doctors were rated most highly on academic ability. Doctors, midwives and social workers were perceived as having the strongest leadership role, whilst doctors were also rated most highly on decision making. All professions were rated highly on confidence and professional competence and, with the exception of social workers, on practical skills. A comparison of profiles for each professional group reveals that, for example, pharmacists and doctors were perceived as having very similar characteristics as were social workers, midwives and nurses. However, the profiles of nurses and doctors were perceived to be very different. The implications of these similarities and differences are discussed in terms of their potential impact on interprofessional interactions, role boundaries and team working
Bipartite guidance, navigation and control architecture for autonomous aerial inspections under safety constraints
No full textIn this work the autonomous flight of a drone for inspection of sensitive
environments is considered. Continuous monitoring, the possibility of override and
the minimisation of the on-board computational load are prioritized. The drone
is programmed with a Lyapunov vector guidance and nonlinear control to fly a
trajectory passed, leg after leg, by a remote ground station. GPS is the main
navigation tool used. Computational duties are split between the ground station
and the drone’s on board computer, with the latter dealing with the most time
critical tasks. This bipartite autonomous system marries recent advancements in
autonomous flight with the need for safe and reliable robotic systems to be used
for tasks such as inspection or structural health monitoring in industrial environments.
A test case and inspection data from a test over flat lead roof structure are
presented
Santonian–Campanian (Late Cretaceous) planktonic foraminiferal turnover, depth ecology and paleoceanographic implications
No full textThe Santonian–Campanian time interval is a transitional phase from the extreme greenhouse warmth during the Turonian to more temperate conditions and to a thermohaline circulation that was more like that of the modern day. These environmental changes led to a re-organization of marine ecosystems in deep-sea and superficial settings and to the formation of well-developed faunal bioprovinces that were analogous to the present. This environmental instability likely led to a major faunal turnover among planktonic foraminifera including extinction of the genera Marginotruncana and Dicarinella and diversification within the genera Globotruncana, Globotruncanita and Contusotruncana (Premoli Silva and Sliter, 1999).
Relatively few studies on the composition of Santonian-Campanian planktonic foraminiferal assemblages are available in the literature, and those have never been coupled with reliable species-specific stable isotope (δ13C and δ18O) analyses, mainly because: (1) DSDP (Deep See Drilling Project), ODP (Ocean Drilling Program) and IODP (Integrated Ocean Drilling Program) cruises recovered relatively few and discontinuous stratigraphic sequences belonging to this interval, and (2) planktonic foraminifera from deep-sea sites are often diagenetically altered and do not yield reliable isotopic records of paleoenvironmental condtions.
The unusual recovery of pristinely preserved planktonic foraminifera from Santonian–Campanian sequences in southeastern Tanzania (Tanzania Drilling Project, TDP Sites 28 and 32, see Jiménez Berrocoso et al., 2012), allowed examination of faunal changes and well resolved, species-specific stable isotope (δ13C and δ18O) data. These data are ideal for inferring paleoecological preferences of different species and for tracing major paleoceanographic changes. Results obtained from TDP material have been compared with δ13C and δ18O values inferred from specimens recovered at two low-to-mid latitude sites (1) Shatsky Rise (ODP Leg 198, Hole 1210B; northwestern Pacific Ocean) and (2) Exmouth Plateau (ODP Leg 122, Hole 762C; eastern Indian Ocean) to detect possible shifts in species habitat preferences in different paleoceanographic contexts.
At all the examined localities, we recognize consistent changes in the composition of planktonic foraminiferal assemblages that enable subdivision of the stratigraphic records into faunal intervals, each one characterized by a distinctive taxonomic composition. With the exception of the extinction of the typical Santonian fauna (marginotruncanids, dicarinellids), most of the observed compositional changes did not occur synchronously among sites, suggesting that changes were likely driven by local rather than global forces.
The stable isotopic results suggest consistent depth stratification and other paleoecological differences among species. In agreement with other recent studies, our results show that the depth-distribution models based on shell morphology and analogies with modern taxa are not applicable for Cretaceous planktonic foraminifera. Combined geochemical and paleontological observations suggest that during the late Campanian the water column in Tanzania was well stratified with a deep thermocline and a thick mixed layer whereas less stratified and/or mesotrophic conditions prevailed at least in some intervals at Shatsky Rise and Exmouth Plateau.
References
Jiménez Berrocoso A., Huber B.T., MacLeod K.G., Petrizzo M.R., Jacqueline A. Lees J.A., Ines Wendler I., Helen Coxall H., Mweneinda A. K., Falzoni F., Birch H., Singano J.M., Haynes S., Cotton L., Wendler J., Bown P.R., Robinson S.A., Gould J. (2012). Lithostratigraphy, biostratigraphy and chemostratigraphy of Upper Cretaceous and Paleogene sediments from southern Tanzania: Tanzania Drilling Project Sites 27 to 35. Journal of African Earth Sciences, v. 70, p. 36-57
Premoli Silva and Sliter, 1999. Cretaceous paleoceanography: evidence from planktonic foraminiferal evolution. In E. Barrera, and C. C. Johnson, eds. The Evolution of the Cretaceous Ocean-Climate System. Special Paper of the Geological Society of America 332:301–328
In situ reaction furnace for real-time XRD studies
No full textAbstract: The new furnace at the Materials Characterization by X-ray Diffraction beamline at Elettra has been designed for powder diffraction measurements at high temperature (up to 1373 K at the present state). Around the measurement region the geometry of the radiative heating element assures a negligible temperature gradient along the capillary and can accommodate either powder samples in capillary or small flat samples. A double capillary holder allows flow-through of gas in the inner sample capillary while the outer one serves as the reaction chamber. The furnace is coupled to a translating curved imaging-plate detector, allowing the collection of diffraction patterns up to 2[theta] equalt to 130°
Planktonic foraminiferal endemism at southern high latitudes following the terminal Cretaceous extinction
No full textAustral planktonic foraminiferal assemblages from immediately above the Cretaceous/Paleogene (K/Pg) boundary at Ocean Drilling Program Hole 690C (Maud Rise, Weddell Sea) and International Ocean Drilling Program Hole U1514C (southeast Indian Ocean) show a much different record of post-extinction recovery than anywhere outside the circum-Antarctic region. Species of Woodringina and Parvularugoglobigerina, genera with well-documented evolutionary successions within the early Danian P0 and Pα biozones at tropical/subtropical and mid-latitude localities, are absent from southern high latitude sequences. This study proposes new criteria for biostratigraphic correlation of the lowermost Danian Antarctic Paleocene AP0 and AP1 Zones using stratophenetic observations from Scanning Electron Microscope images of lower Danian planktonic foraminifera at deep-sea sites in the southern South Atlantic and southern Indian Ocean. The small but distinctive species Turborotalita nikolasi (Koutsoukos) is a highly reliable index species for the lowermost Danian as it consistently occurs immediately above the K/Pg boundary at multiple southern high latitude sites, which is consistent with its distribution at middle and low latitudes. Also useful for cross-latitude correlation is Parasubbotina neanika n. sp., which first appears within the lowermost Danian worldwide. The geographic distribution of the New Zealand species Antarcticella pauciloculata (Jenkins) and Zeauvigerina waiparaensis (Jenkins), as well as Eoglobigerina maudrisensis n. sp. from just above the K/Pg in the southern South Atlantic and southern Indian Ocean, helps define the extent of the Austral Biogeographic Province and provides evidence for marine communication via marine seaways across Antarctica. While An. pauciloculata was previously considered a benthic species, new stable isotope evidence demonstrates that it lived a planktonic mode of life. It is possible this species evolved from a benthic ancestor and that the benthic to planktonic transition occurred through an intermediate tychopelagic lifestyle at a time when calcareous plankton were less abundant as a result of the terminal Cretaceous mass extinction
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