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Cone-beam CT analysis of patients with obstructive sleep apnea compared to normal controls
Buchanan, Allison,Cohen, Ruben,Looney, Stephen,Kalathingal, Sajitha,De Rossi, Scott Korean Academy of Oral and Maxillofacial Radiology 2016 Imaging Science in Dentistry Vol.46 No.1
Purpose: To evaluate the upper airway dimensions of obstructive sleep apnea (OSA) and control subjects using a cone-beam computed tomography (CBCT) unit commonly applied in clinical practice in order to assess airway dimensions in the same fashion as that routinely employed in a clinical setting. Materials and Methods: This was a retrospective analysis utilizing existing CBCT scans to evaluate the dimensions of the upper airway in OSA and control subjects. The CBCT data of sixteen OSA and sixteen control subjects were compared. The average area, average volume, total volume, and total length of the upper airway were computed. Width and anterior-posterior (AP) measurements were obtained on the smallest axial slice. Results: OSA subjects had a significantly smaller average airway area, average airway volume, total airway volume, and mean airway width. OSA subjects had a significantly larger airway length measurement. The mean A-P distance was not significantly different between groups. Conclusion: OSA subjects have a smaller upper airway compared to controls with the exception of airway length. The lack of a significant difference in the mean A-P distance may indicate that patient position during imaging (upright vs. supine) can affect this measurement. Comparison of this study with a future prospective study design will allow for validation of these results.
Ann Buchanan 한국청소년학회 2018 청소년학연구 Vol.25 No.8
Brain research indicates that interventions in the early years (under 3) may be an important way to help all children, but especially disadvantaged children, to achieve more academically, and make them more resistant to mental health disorders and delinquency that inhibit their future careers. But more recent research on the adolescent brain suggests there is much that can be done in the teenage years to 'turn around' a young person who may be moving in the wrong direction. Based on the new findings on the adolescent brain, the paper highlights the possible interventions that can be effective. In societies where an ageing population and low fertility are concerns, maximizing the potential of all children, who will be the workers of tomorrow, makes both humanitarian and economic good sense. Disadvantaged children are particularly likely to benefit from interventions in the early years and throughout adolescence. As such they may be better able in adult life to contribute to the well-being of their societies.
John Buchanan,Ari Widodo 서울대학교 교육연구소 2016 Asia Pacific Education Review Vol.17 No.2
International mobility programmes and opportunities have enthusiastically been embraced by universities as part of a growing demand for graduates with global, international and intercultural capital on the part of graduates. In this project, we take two universities, one Australian and one Indonesian, as illustrative case studies of some of the commonalities, differences and, in particular, imbalances, with regard to the conduct of international professional experience in the global north and south. Specifically, a recent visit by Indonesian pre-service teachers was used to inform an upcoming visit by Australian pre-service teachers to Indonesia. We used this opportunity to compare the accessibility of travel for Australian and Indonesian pre-service teachers, as illustrations of in/equality of access for northern and southern learners. We hope that this paper will prompt discussion about global imbalances of opportunity with regard to international experiences. We also hope that our mutual interview process adopted for this study might be a useful research tool.
Cone-beam CT analysis of patients with obstructive sleep apnea compared to normal controls
Allison Buchanan,Ruben Cohen,Stephen Looney,Sajitha Kalathingal,Scott De Rossi 대한영상치의학회 2016 Imaging Science in Dentistry Vol.46 No.1
Purpose: To evaluate the upper airway dimensions of obstructive sleep apnea (OSA) and control subjects using a cone-beam computed tomography (CBCT) unit commonly applied in clinical practice in order to assess airway dimensions in the same fashion as that routinely employed in a clinical setting. Materials and Methods: This was a retrospective analysis utilizing existing CBCT scans to evaluate the dimensions of the upper airway in OSA and control subjects. The CBCT data of sixteen OSA and sixteen control subjects were compared. The average area, average volume, total volume, and total length of the upper airway were computed. Width and anterior-posterior (AP) measurements were obtained on the smallest axial slice. Results: OSA subjects had a significantly smaller average airway area, average airway volume, total airway volume, and mean airway width. OSA subjects had a significantly larger airway length measurement. The mean A-P distance was not significantly different between groups. Conclusion: OSA subjects have a smaller upper airway compared to controls with the exception of airway length. The lack of a significant difference in the mean A-P distance may indicate that patient position during imaging (upright vs. supine) can affect this measurement. Comparison of this study with a future prospective study design will allow for validation of these results.
이언부캐넌(Ian Buchanan) 한국비평이론학회 2017 비평과이론 Vol.22 No.1
권태는 강의, 텔레비전 쇼, 신문 기사 혹은 장소와 같이 이미 조건화된 기호 체제의 실패를 의미한다고 믿도록 우리는 배워왔다. 우리는 권태를 일상적으로 적대시하여 구시대의 마녀들이나 죄인들처럼 추방시켜야 한다고 여긴다. 하지만 권태는 우리가 갖추어야 할 인지적 방어일 수 있다. 권태가 반드시 실패의 신호인 것은 아닌 것이다. 정보의 과잉 시대에서 외부 자극들의 지속적인 압박에도 불구하고 자신의 생각들을 일관되게 견지하고 있다는 신호로서의 권태는 성공의 신호로 이해할 수 있다. 그렇다면 권태를 느끼는 기법을 상실한 문화의 의미를 묻지 않을 수 없다. 그러한 문화 속에서 사는 우리는 스스로 향유하는 법을 모른 채 자본화된 내적 자아들만을 지니고 살아가는 것은 아닌가? 권태를 정복함으로써 소비 자본주의는 가장 탁월한 비판자들을 제거해왔다. 권태는 그러한 현실에 맞서 우리를 방어하는 기제이다. Boredom, so we have been taught to believe, signifies the failure of a given semiotic regime—whether that’s a lecture, a TV show, a news article or a place. Boredom is presented to us as a common enemy that like witches and sinners of old must be driven out. Perhaps though boredom is a form of cognitive defence we should cultivate. Boredom isn’t necessarily a sign of failure; one might also see it as a sign of success, a sign that one has held onto the integrity of one’s thoughts despite the constant pressure of external stimuli in the information rich age we live in. We must ask, what does it say about a culture if it loses the art of being bored? Does that not mean we who make up ‘this’ culture no longer know how to amuse ourselves with only our inner selves for company? By conquering boredom consumer capitalism has extinguished its most potent critic. Boredom is our defence against the present.