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The main objective of this work was to understand fundamental processes related to incipient continental collision through studying the tectonostratigraphic evolution of Cyprus, in its Easternmost Mediterranean context. This was achieved by compiling structural, sedimentological and stratigraphic evidence from Late Cenozoic to Recent sequences, and by applying palaeomagnetic and luminescence methods of dating. In particular, the basin-fill of the Neogene basins provides a temporal and palaeogeographic control to interpret syn-depositional and post-depositional structural assemblages. Four neotectonic deformation phases are recognised. The Polis and Pissouri Basins originated as Tortonian depocentres in response to syn-depositional W-E/WSW-ENE D1 extension. The Maroni Basin originated as a Tortonian depocentre in response to syn-depositional NW-SE D1 extension. The difference in extension direction between west and south-central Cyprus is attributed to the curvature of the Cyprus Arc. The Middle - Late Pliocene D2 extensional/transtensional phase re-orientated the Neogene basins and resulted in syn-depositional NW-SE extension. A kinematic change occurred at ~3 Ma, attributed to the collision of the Eratosthenes Seamount with an active trench, the ‘Cyprus Arc’. Early Pleistocene to Recent D3a transpression generated strike-slip faulting along E-W trends, conjugate left-lateral NNE-SSW-trending and right-lateral NNW-SSE-trending strike-slip faults and reactivated Tortonian D1 NW-SE and NE-SW structures. Middle Pleistocene to Recent D3b compression produced intense NE-SW contractional deformation orientated along NW-SE trends. Optically stimulated luminescence (OSL) dating was used as a tool to constrain the D3a/D3b events, by generating a chronology for their associated sediments. D3 transtensional lineaments originated in the early Pleistocene (174.1 ± 20.9 ka < D3a < 76.6 ± 16.43 ka), and are still active today (Cape Kiti: 38.1 ± 13.2 ka < D3a < 12.1 ± 0.1 ka). D3 compressional lineaments originated in the middle Pleistocene, and were still actively growing at 76.8 ± 31.6 ka. To constrain the timing of regional uplift in south and central Cyprus, a magnetostratigraphy was generated for the Plio-Pleistocene units of the Pissouri and Mesaoria Basins. The results indicate that rapid uplift began in the latest Pliocene (c. 2.14 – 1.95 Ma), coincident with the large-scale progradation of Gilbert-type fan deltas into the Pissouri Basin, and the incursion of large fluvial networks into the Mesaoria Basin. In light of the new evidence, three alternative models for the Early Cenozoic to Recent tectonostratigraphic evolution of Cyprus are considered: model 1, subduction/incipient collision; model 2, advanced collision; and model 3, transpression. Some difficulties exist in detail, with all three models. However, at present the working hypothesis is as follows: areas to the east of Cyprus (Syria, S Turkey) were in a collisional setting from Mid-Miocene time onwards. Cyprus remained in an oceanic embayment (Levant Sea) further west and subduction continued during Miocene time. Compressional processes may have been active at depth during this time. Southward extension (trench roll-back) was taking place at a high structural level in S Cyprus, as with many other convergent margin settings (e.g. SW Peloponnese; Aleutians; Sunda arc). Subsequently, the collision of the Eratosthenes Seamount with the Cyprus Arc obstructed subduction and initiated rapid uplift of the Troodos Massif. The initial manifestation of this kinematic change was the generation of E-W-trending strike-slip faults and the development of conjugate left-lateral NNE-SSW-trending and right-lateral NNW-SSE-trending strike-slip faults. Transpression resulted in the reactivation of D1/D2 E-W, NE-SW and NW-SE structures. Subsequent deformation is documented in a compressional lineament in SW Cyprus. In addition, the over-riding plate in southwest Cyprus still appears to be undergoing gravity spreading outwards from the developing collision zone.

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The purpose of this study was to replicate the findings of McDonald and McKinney (1988) who found a significant relationship between low self-esteem and exclusive dating among high school students. Its purpose was also to study components that might lead an adolescent with low self-esteem to seek a steady dating relationship and to discern if any gender differences in this compensation occurred. Measures designed to determine: activity involvement; dating status; the person (parent or peer) an adolescent was most likely to talk to; and self-esteem were administered to 122 high school students. Analysis did not replicate the original findings by McDonald and McKinney. Also the only variable found to have a significiant interaction with self-esteem was activity involvement. Interesting gender differences were found in the relationship between who a person talks to and dating style. Boys, who were involved in an exclusive or steady dating relationship, were significantly more likely to turn to peers for conversation than were boys not involved in this type of dating. No such relationship existed for girls, however. It is hypothesized that population differences lead to the non-replication of the previous study and that for some boys, intimacy may only be found in the dating relationship. / Department of Counseling Psychology and Guidance Services

名古屋大学年代測定総合研究センターシンポジウム報告

名古屋大学年代測定総合研究センターシンポジウム報告

Through an examination of how culture and cultural difference affect sexual norms and practices this thesis explores the sexual subjectivities of ten Nigerian and Sierra Leonean young women living in Winnipeg. The theoretical framework deployed in this thesis is the social constructionist approach to sexuality. This approach involves an understanding that social processes affect the meanings and performances of sexuality and will be deployed to underscore the varying ways Nigerian and Sierra Leonean young women develop sexual beliefs and practices enmeshed in dating and economic exchange, connections to “home”, pleasure, and the body. The methodological approach is ethnographic and uses focus groups, interviews, and participant observation. I argue that the Nigerian and Sierra Leonean young women’s sexual subjectivities are influenced by their social locations as straddling two different social worlds and sets of cultural and sexual norms. Media, race and religion influence these young women’s sexual subjectivities.

Purpose: When the prevalence of physical teen dating violence (TDV) victimization is examined at the state level, significant variation exists; the prevalence ranges from 7.4% in Oklahoma and Vermont to 17.8% in Louisiana. Using U.S. states as the unit of analysis, this study sought to determine whether gender inequality is a societal level risk factor for TDV victimization. Method: Data measuring physical TDV victimization were obtained from the 2009 YRBS. To measure the level of gender inequality in each state, the Gender Inequality Index (GII) was calculated using the procedure described in the United Nations’ Human Development Report. Pearson’s correlation coefficients were calculated to determine the association between TDV victimization, the GII, and the indicators of the GII. Results: Of the 40 states included in analyses, the GII was significantly associated with the state prevalence of both total TDV victimization (r=.323, p=.042) and female TDV victimization (r=.353, p=.026). Subsequent to removal of the outlying case of Oklahoma, the GII was also significantly associated with male TDV victimization (r=.366, p=.022). Several individual GII indicators were significantly associated with TDV victimization after removing the outlying case. Ordinary least squares regression was used to create a model for TDV victimization and gender inequality. Conclusion: This is the first study to examine societal level gender inequality as a risk factor for state level TDV victimization using nationally representative data on school youth. As policy-makers implement TDV prevention policy at the state level, further research understanding potential macro-level risk factors is particularly important.

Accelerator mass spectrometry (AMS) has been used routinely for radiocarbon measurements for several years. During this period it has become evident neither the accuracy nor the range of the technique were as great as had originally been hoped. This thesis describes both theoretical work to understand the reasons for this and practical solutions to overcome some of the problems. The production and transport of the ions used in the measurements are found to be the most crucial stages in the process. The theories behind ion production by sputtering are discussed and applied to the specific case of carbon sputtered by caesium. Experimental evidence is also examined in relation to the theories. The phenomena of space charge and lens aberrations are discussed along with the interaction between ion beams and gas molecules in the vacuum. Computer programs for calculating phase space transformations are then described; these are designed to help investigations of the effects of space charge and aberrations on AMS measurements. Calculations using these programs are discussed in relation both to measured ion beam profiles in phase space and to the current dependent transmission of ions through the Oxford radiocarbon accelerator. Improvements have been made to this accelerator and these are discussed in the context of the calculations. There are many reasons for wishing to produce C^- ions directly from carbon dioxide. The most suitable type of source for achieving this is the Middleton High Intensity Sputter Source. Experiments to evaluate the performance of such a source are described and detailed design criteria established. An ion source designed and built specifically for radiocarbon measurements using carbon dioxide is described. Experiments to evaluate its performance and investigate the underlying physical processes are discussed. The source is found to have a high efficiency enabling small samples (<100 μg of carbon) to be measured. The cross contamination is measured to be low (<0.1%) and the background currents are small; the implications of these results are discussed.

No description available.