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Paterson Andrew,Franco Vittorio,Patel Shanon,Foschi Federico 대한영상치의학회 2020 Imaging Science in Dentistry Vol.50 No.3
(CBCT), when justified for other reasons, in locating the apical foramen and establishing the working length. Materials and Methods: Six electronic databases were searched for studies on this subject. All studies, of any type, were included if they compared measurements of working length with preoperative CBCT to measurements using an electronic apex locator (EAL) or histological reference standard. Due to the high levels of heterogeneity, an inverse-variance random-effects model was chosen, and weighted mean differences were obtained with 95% confidence intervals and P values. Results: Nine studies were included. Compared to a histological reference standard, CBCT indicated that the apical foramen was on average 0.40 mm coronal of its histological position, with a mean absolute difference of 0.48 mm. Comparisons were also performed to an EAL reference standard, but the conclusions could not be considered robust due to high levels of heterogeneity in the results. Conclusion: A low level of evidence is produced suggesting that preoperative CBCT shows the apical foramen to be on average 0.40 mm coronal to its histological position, with a mean absolute difference of 0.48 mm.
Photoproduction ofΛand<sup>Σ0</sup>hyperons using linearly polarized photons
Paterson, C. A.,Ireland, D. G.,Livingston, K.,McKinnon, B.,Adhikari, K. P.,Adikaram, D.,Akbar, Z.,Amaryan, M.,Anefalos Pereira, S.,Badui, R. A.,Ball, J.,Baltzell, N. A.,Battaglieri, M.,Bedlinskiy, I. American Physical Society 2016 Physical review. C Vol.93 No.6
<P>Background: Measurements of polarization observables for the reactions (gamma) over right arrowp -> K+ Lambda and (gamma) over right arrowp -> K+ Sigma(0) have been performed. This is part of a program of measurements designed to study the spectrum of baryon resonances in particular, and nonperturbative QCD in general. Purpose: The accurate measurement of several polarization observables provides tight constraints for phenomenological fits, which allow the study of strangeness in nucleon and nuclear systems. Beam-recoil observables for the (gamma) over right arrowp -> K+ Sigma(0) reaction have not been reported before now. Method: Themeasurements were carried out using linearly polarized photon beams incident on a liquid hydrogen target, and the CLAS detector at the Thomas Jefferson National Accelerator Facility. The energy range of the results is 1.71 < W < 2.19 GeV, with an angular range -0.75 < cos theta(K)* < +0.85. Results: The observables extracted for both reactions are beam asymmetry Sigma, target asymmetry T, and the beam-recoil double polarization observables O-x and O-z. Conclusions: Comparison with theoretical fits indicates that, in the regions where no previous data existed, the new data contain significant new information, and strengthen the evidence for the set of resonances used in the latest Bonn-Gatchina fit.</P>
Introduction to "Mediating Chineseness in Cambodia"
Lorraine Paterson,Penny Edwards 고려대학교 민족문화연구원 2012 Cross-Currents Vol.- No.4
In 1981, social anthropologist William Willmott declared, “Today, no-one identifies themselves as Chinese in Kampuchea [Cambodia]” (1981:45). He certainly had the authority to publish such a statement. Having conducted sustained fieldwork on Chinese community formation in Cambodia from 1962 to 1963, Willmott offered an unprecedented examination of social structures, political organization, and patterns of identification among urban Chinese in his monographs, The Chinese in Cambodia (1967) and The Political Structure of the Chinese Community in Cambodia (1970). However, subsequent to his research, Chinese communities suffered terribly during the repression of the Lon Nol government between 1970 and 1975 and the atrocities of the Democratic Kampuchea regime. Willmott thus declared Chinese communities—and a willingness to identify as Chinese—destroyed. This understandably pessimistic vision turned out to be unfounded; the next extensive research done on Chinese in Cambodia by Penny Edwards and Chan Sambath in 1995 showed Chinese communities rebuilding. However, the descriptions of these communities showed a complexity of identity formation—from recent immigrants, “the raw Chinese,” to the five “traditional” Chinese dialect groups—that differed markedly from the indexes of identity applied by Willmott in his initial analysis. Academic ideas of how Chineseness should be configured had shifted and complicated; ascribing identity had become increasingly problematic...