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      • KCI등재

        Argument-related recurrent sequences: A corpus-based study targeting L2 learners of English

        ( Shin¸ Yu Kyoung ),( Gu¸ Yeri ),( Park¸ Yerin ),( Seo¸ Dongju ) 한국중등영어교육학회 2021 중등영어교육 Vol.14 No.4

        Legal sentencing involves a multilayered series of arguments leading to a final verdict, just as argumentative essays, a frequent task genre in language classes, should include multilayered argumentation leading to the writer’s conclusions. This similarity suggests that authentic legal sentencing discourse could potentially be useful for language pedagogy. Yet this specific written genre has not attracted much attention in EFL contexts. This study examines three corpora of legal sentencing data (i.e., verdicts of guilty, innocent, and partially innocent when the charges involve more than one crime), amounting to 650,000 words. The study identifies lexical bundles in each corpus and their semantic preferences (i.e., co-occurring words of the sequences in context) in concordance lines. The findings illuminate features of the sentencing genre and suggest its potential as a pedagogical tool for teaching argumentative prose to L2 English learners at the secondary and tertiary levels.

      • KCI등재

        다양한 교정용 브라켓 원재료에 부착하는 mutans streptococci 양의 비교분석

        유진경,안석준,이신재,장영일 대한치과교정학회 2009 대한치과교정학회지 Vol.39 No.2

        Objective: To estimate the effects of bracket material type on enamel decalcification during orthodontic treatment, this study analyzed the adhesion level of mutans streptococci (MS) to orthodontic bracket materials in vivo. Methods: Three different types of orthodontic bracket materials were used: stainless steel, monocrystalline sapphire, and polycrystalline alumina. A balanced complete block design was used to exclude the effect of positional variation of bracket materials in the oral cavity. Three types of plastic individual trays were made and one subject placed the tray in the mouth for 12 hours. Then, the attached bacteria were isolated and incubated on a mitis salivarius media containing bacitracin for 48 hours. Finally, the number of colony forming units of MS was counted. The experiments were independently performed 5 times with each of the 3 trays, resulting in a total of 15 times. Mixed model ANOVA was used to compare the adhesion amount of MS. Results: There was no difference in colony forming units among the bracket materials irrespective of jaw and tooth position. Conclusions: This study suggested that the result of quantitative analysis of MS adhesion to various orthodontic bracket materials in vivo may differ from that of the condition in vitro. 법랑질 탈회는 교정 치료 중에 발생하는 대표적인 부작용으로서 특히 교정용 브라켓에 대한 세균 부착이 그 원인이 될 수 있다. 본 연구의 목적은 서로 다른 표면 특성을 가진 세 종류의 브라켓을 구강 내 장착했을 때 각 재료의 표면에 대한 mutans streptococci 부착 정도를 측정하여 브라켓 재료에 따른 법랑질 탈회 및 치아 우식 발생 가능성을 분석하는 것이었다. 상하악 및 치아 부위별 mutans streptococci 부착 정도의 차이를 배제하고 브라켓 원재료에 따른 차이만을 검출하기 위하여 균형완전블록 실험계획을 설계하였다. 피실험자인 30세 여성의 구강 내에 장착할 수 있는 tooth positioner 형태로 3세트의 플라스틱 맞춤 트레이를 제작하였으며, 이 트레이에 직육면체의 형태(4 x 3 x 2 mm)로 제작한 stainless steel, monocrystalline sapphire, polycrystalline alumina 조각을 세트마다 서로 다른 순서로 전치부와 구치부 순면에 부착하였다. 이렇게 제작된 3종류의 실험장치를 12시간 동안 피실험자의 구강 내에 장착한 후, 각 브라켓 재료 표면에 형성된 치태를 채취하여 bacitracin이 포함된 mitis salivarius배지에서 48시간 배양 후 colony counting을 통해 그 표면에 부착된 mutans streptococci 양을 비교하였다. 이와 같은 방법으로 3세트의 실험장치에 대해서 각각 5회씩 총 15회의 실험을 시행하였다. 그 결과 상하악 및 치아 부위별 및 브라켓 재료별 세균 부착 정도는 모두 유의한 차이를 보이지 않았다. 결론적으로 본 연구의 결과 in vivo condition에서 브라켓 재료의 차이는 mutans streptococci 부착에 영향을 미치지 못하는 것으로 보였다.

      • 층상구조 산화물 Na_(x)Co_(x/2)Ti_(1-x/2)O₂(0.66≤x≤1)의 합성 및 결정화학 연구

        신유주,곽지현 가톨릭대학교 자연과학연구소 1997 자연과학논문집 Vol.18 No.-

        층상구조 산화물 Na_(x)Co_(x/2)Ti_(1-x/2)O₂(0.66≤x≤1)이 고상합성법에 의해 Ar 분위기, 950℃에서 합성되었다. 단일상 영역은 0.75≤x≤1에서 rhombohedral, x=0.66에서는 primitive hexagnonal 상으로 결정되었고, 0.66<x<0.75에서는 두 개의 상이 공존하는 상 경계가 존재하였다. 두 구조의 결정 화학적 논의가 조성과 연관되어 공유-이온 결합성을 중심으로 이루어졌다. 또한 온도에 따른 자화율 거동을 분석한 결과, 두 구조 내에서 Co^(2+) 이온은 high-spin(S=3/2; ⁴T) 상태임을 알 수 있었고, 자기적 상호 작용에 대해서도 논의되었다. Layer-type oxides Na_(x)Co_(x/2)Ti_(1-x/2)O₂(0.66≤x≤1) have been prepared for the first time by solid-state reaction by heating the appropriate mixtures of starting materials at 950℃ under Ar ambience. They exhibit two kinds of structure according to x, respectively rhombohedral one for 0.75≤x≤1, and primitive hexagonal for x=0.66. Discussion of crystal chemistry of both structure has been made mainly focused to the iono-covalency of Na-O, and correlated to the chemical composition. Magnetic susceptibility measurements confirmed the high-spin state(S=3/2; ⁴T) of Co^(2+) ions in both structures and their magnetic interactions has been also discussed.

      • KCI등재후보

        자일리톨과 불화나트륨을 함유한 저작성 정제가 교정환자의 구강위생에 미치는 영향에 관한 임상시험

        유상훈,안석준,이신재,백승학,김태우,장영일,남동석 대한치과교정학회 2003 대한치과교정학회지 Vol.33 No.2

        본 연구는 불화나트륨과 자일리톨 성분으로 구성된 구강 청정용 저작성 정제(덴포정, 하미즐, 부천, 경기)가 교정치료 중인 환자의 구강위생 상태에 미치는 영향을 알아보기 위해 시행되었다. 교정치료 중인 18세 이상의 성인 환자 30명을 대상으로 약제 상요 전, 2주 후, 4주 후에 피험자의 상악과 하악 전치 부위 및 구치 부위에서 각각 치은 지수, 치은 출혈 지수, 치태 지수를 측정하여 다음과 같은 결과를 얻었다. 1. 상하악 전치부와 구치부 모두에서 치태 지수가 약제 사용 전에 비해 사용 2주 후와 4주 후 유의성 있게 감소하였다(p<0.05). 또한, 적용 2주 후와 4주 후의 지수를 비교하였을 때 4주 후에 좀 더 개선된 경향을 보였으나, 통계적 유의성은 나타나지 않았다(p<0.05). 2. 치은 지수, 치은 출혈 지수도 상하악 전치부와 구치부 모두에서 적용 전에 비하여 2주 후와 4주 후 유의성 있게 감소하였다(p<0.05). 적용 2주 후와 4주 후의 지수의 비교 검증에서 통계학적으로 유의할 만한 차이가 보이지 않아 구강위생 상태의 개선이 계속 유지됨을 보였다. 본 연구의 결과는 치태 지수, 치은 지수, 치은 출혈 지수가 실험 정제 적용 후에 감소하여 구강위생 상태가 개선되었음을 보였다. 이러한 결과를 통해 덴포정을 교정치료 중인 환자에서 부가적으로 사용하였을 경우 치주조직의 건강을 증진시키는데 도움을 줄 수 있으리라고 생각된다. The aim of this study was to evaluate the effect a chewable tablet containing sodium fluoride and xylitol (DenPo, Hamizzle, Bucheon, Kyungki) on the oral hygiene state in the orthodontic patients. The subjects consisted of 30 adult orthodontic patients, who have worn the fixed orthodontic appliance at least 6 months. They were instructed to use the tablet forth a day. Gingival index (GI), plaque index (PI), and sulcus bleeding index (SBI) of upper and lower anterior and posterior regions were measured before using the tablet (TO), 2 weeks after using the tablet (T1), and 4 weeks after using the tablet (T2). The data were analyzed with Wilcoxon signed ranks tests. The results were as follows ; 1. PI was decreased significantly in the T1 and T2 stage compared with TO stage in the both anterior and posterior regions (p<0.05). Although PI was decreased in the T2 stage compared with T1, there was not statistical significance(p>0.05). 2. GI and SBI showed similar results compared with PL. In the T1 and T2 stage, there was statistically significant decrease in the GI and SBI (p<0.05). This study showed that the DenPo tablet could be used as an adjunct to improve oral hygiene in the orthodontic patients. The decrease of the indices may suggest that DenPo tablet could be effective in the plaque removal and prevention of gingival inflammation in the orthodontic patients.

      • KCI등재

        아로마 요법이 뇌졸중환자의 자율신경계와 스트레스에 대한 신체 저항도에 미치는 효과

        신유선,조영숙,정유진 대한기초간호자연과학회 2004 Journal of korean biological nursing science Vol.6 No.2

        Purpose : The purpose of this study is to determine effects of aromatherapy on the activity and balance of autonomic nervous system and on physical resistance to stress. Methods : This research is a primitive experimental design which attempts to analyze aromatherapy EKG monitoring on real-time basis. Lavender & Chamomile, each 30 drops, were blended with 100ml Sweet Almond oil. Subjects was laid relaxed, and had insides of his wrists and ankles attached with electrodes for EKG. Right after applied with essential oil onto his philtrum and parotid, started on EKG monitoring. Results : The activities of parasympathetic and sympathetic nerve were changed as time elapsed, with significant differences(p=.000). In multiple comparison, the value was significantly different (p<.05).The balance of autonomic nerve was changed, becoming close to the normal level in accord with applicable international standards(1.5)(p=.011). In multiple comparison, the value showed a significant difference(p<.05). Physical resistance to stress increased with the passage of time, but not statistically significant. Conclusions : This suggests that aromatherapy can be used as a nursing intervention which aims at alleviating symptoms related to the imbalance of autonomic nerve system such as headache, hot flashes, irregular heartbeat, nervousness, depression and anxiety.

      • KCI등재후보

        전동식 니켈 티타늄 파일의 표면 결함 및 단면 형태가 반복응력 하에서 피로 파절에 미치는 영향

        신유미,김의성,김광만,금기연 大韓齒科保存學會 2004 Restorative Dentistry & Endodontics Vol.29 No.3

        The purpose of this in vitro study was to evaluate the effect of surface defects and cross-sectional configuration of NiTi rotary files on the fatigue life under cyclic loading. Three NiTi rotary files (K3^(TM), ProFile®, and HERO 642®) with #30/.04 taper were evaluated. Each rotary file was divided into 2 subgroups: control (no surface defects) and experimental group (artificial surface defects). A total of six groups of each 10 were tested. The NiTi rotary files were rotated at 300rpm using the apparatus which simulated curved canal (40 degree of curvature) until they fracture. The number of cycles to fracture was calculated and the fractured surfaces were observed with a scanning electron microscope. The data were analyzed statistically. The results showed that experimental groups with surface defects had lower number of cycles to fracture than control group but there was only a statistical significance between control and experimental group in the K3^(TM) (p〈0.05). There was no strong correlation between the cross-sectional configuration area and fracture resistance under experimental conditions. Several of fractured files demonstrated characteristic patterns of brittle fracture consistent with the propagation of pre-existing cracks. This data indicate that surface defects of NiTi rotary files may significantly decrease fatigue life and it may be one possible factor for early fracture of NiTi rotary files in clinical practice.

      • KCI등재

        계면활성제 함유 인지질 나노입자의 초가변성 연구

        신지영,오유경,강민정,권경애,김종국 한국약제학회 2003 Journal of Pharmaceutical Investigation Vol.33 No.3

        This study was aimed to formulated various phospholipid nanoparticles composed of different surfactants and to evaluate the deformability of the phospholipid vesicles as candidates of useful ultradeformable nanoparticles. In vitro deformability of the hospholipid nanoparticles was studied using an extruder under a certain pressure. The sizes of phospholipid nanoparticles, passed volumes, and concentrations of the phospholipids in suspensions before and after extrusion were measured. The deformability indexes were estimated by using passed volumes, sizes of phospholipid nanoparticles and concentrations of phospholipids. Conventionl liposomes, placed under a certain pressure of an extruder, showed no passed volume indicating little deformability. Similar to conventional liposomes, phospholipid nanoparticles containing surpactants such as sodium taurcholate, Myrj 45, or Myrj 53 showed little deformability. In contrast, phospholipid nanoparticles composed of Tween 20, triton X-100, or sodium deoxycholate showed higher deformability indexes than others. Taken together, the deformability of phospholipid nanoparticles could be significantly affected by the type of surfactants. Moreover, these results suggest that the deformability of phospholipid nanoparticles could be modulated by surfactants.

      • 다당류를 이용한 생분해성 필름의 제조

        신은경,김동운,김유은,나건,이기영 全南大學校 觸媒硏究所 1998 觸媒硏究 論文集 Vol.20 No.-

        In this study, we prepared biodegradable polysaccharide films with pullulan, κ-carrageenan, curdlan and chitosan and measured physical properties and antibacterial activity All of polysaccharide films showed the high biodegradability but antibacterial activity on bacteria was only observed at chitosan film. The permeability of the gas(O₂and C0₂) of polysaccharide films besides chitosan film showed 50∼100 times lower than polyethylene(PE) film. Therefore, we prepared two film types to give low gas permeability and antibacterial property at polysaccharide film : one type was the physically mixed film(k-carrageenan +chitosan) and other type was the chitosan coated κ-carrageenan film. Chitosan coated κ-carrageenan film showed low gas permeability and antibacterial activity.

      • KCI등재

        OECD 가입에 따른 한국 경제법질서의 발전방향

        신유철 한국경영법률학회 2003 經營法律 Vol.13 No.1

        Die OECD, der mitterweile nahezu alle Industriela''nder auf der Erde angeho''ren, befagβt sich hauptsa''chilich mit wirstchaftspolitischen Fragestellungem. Die Ziele und Aufgaben der OECD sind in der Konvention lediglich in grundsa''tzlichen Linien umrissen. Dies ermo''glicht der Organisation groβe Flexibilita''t. Zur Erreichung ihrer Ziele sowie zur Erfu''llung ihrer Aufgaben stu''tzt sich die OECD im wesentlichen auf zwei Instrumente. Diese sind zum einen die Einigung auf Beschlu''sse und Empfehlungen, und zum anderen die Erstellung wissenschaftlicher Analyse. Diese Instrumente spiegeln auch die Kernfunktionen der OECD wieder, na''mlich Verhandlungs-, Koordinierungsund Diskussionsforum der Mitgliedstaaten ebenso zu sein wie wissenschaftlicher "think tank". Seit dem Eintritt in die OECD im Jahre 1996 ist die Republik Korea nun zur Erreichung der Ziele dieser Organisation gema''β Art. 1 der OECD-Konvention dazu verpflichtet, unter Wahrung der finanziellen Stabilita''t eine optimale Entwicklung der Wirtschaft und Bescha''ftigung sowie einen steigenden Lebensstandard zu erreichen, im Einklang mit internationalen Verpflichtungen auf multinationaler und nicht-diskriminie-render Grundlage eine Ausweitung des Welthandels Koordinierung der wirschaftlichen Entwicklungshilfe zur gesunden Entwicklung der Weltwirtschaft beizutragen. Die daraus resultierenden Aufgaben umfassen ein breites Spektrum, das nicht nur die Zusammenarbeit in der allgemeinen Wirtschafts- und Wa''hrungspolitik, die Ero''rterung handelsoplitischer Fragen sowie die Koordinierung der Entwicklungshilfe umfaβt, sondern vielmehr die Bewa''ltigung der damit verbundenen politischen und technischen Problem etwa im Energie-, Verkehr-, Agrar-, Umwelt- und Arbeitsmarktbereich ebenso wie die Fragen der Globalisierung, der nachhaltigen Entwickiung, der neuen Technologien, der Regulierungsreform, der Besteckungsbeka''mpfung, der alternden Bevo''lkerung, der sozialen Sicherheit, der Erziehung usw. Denn die wirtschaftspolitischen Problem ko''nnen nicht allein im engeren Sinne der Wirtschaftspolitik isoliert gelo''st werden; die richtigen Lo''sungen mu''ssen stets im gesamten Zusammenhang mit der polotoschen, gesellschaftkichen und kulturellen Fragen, die jeweils im Lontext stehen, gesucht, gekla''rt und gefunden werden. Zu beachten ist dabei, daβ alle Beschlu''sse und Empfehlungen der OECD prinzipiell einstimmig gefaβt werden. Um eine Blockierung der Arbeiten zu vermeiden, behalten bei Stimmenthaltung eines oder mehrerer Mitglieder die Beschlu''sse fu''r die zustimmenden unmittelbar geltendes Recht in den einzelnen Mitgliedsla''ndern. Die Regierungen sind aber verpflichtet, die Beschlu''sse ihren Parlamenten zur Umwandlung in nationales Recht vorzuschlagen. Die Empfehlungen sind rechtlich wenig verpflichtend; es bleibt dem einzelnen Mitglied u''berlassen, ihre Zweckma''βigkeit im Hinblik auf die Situation im eigenen Land zu pru''fen und sie den nationlen Verha''ltnissen entsprechend anzuwenden. Trotz diesem saften Charakter der OECD-Normen als "soft law" haben sie groβen Einfluβ auf die Herausbildung der heutigen Weltwirtschaftsordnung ausgeu''bt, zumal die OECD als ein Vorforum der wichtigen Industriela''nder gegenu''ber den anderen internatiomalen Organisationen fungierte. Die eigentliche Bedeutung der OECD liegt also weniger im Erlaβ verbindlicher Regelungen als in der Abstimmung der wichtigen Wirtschafts- und Wa''hrungspolitik ihrer Mitglieder. Seit ihrer Entstehung spielen die europa''ischen La''nder groβe Rolle fu''r die bildung der OECD-Normen. Durch die Entstehung der Europa''ischen Union im Jahre 1992 ist nicht nur eine wirtschaftliche Gemeinschaft der europa''ischen La''nder verwirkicht, sondern eine gesellschaftliche und politische Integration mo''glich geworden. Die EU erlassen in diesem Zusammenhang zahlreiche Gesetzgebungsrichtlinien, die ihre Mitgliedsstaaten rechtlich binden, so daβ man bereits von dem "Europa''ischen Wirtschaftsrecht" spricht. Fu''r die Bildung der weiteren OECD-Normen wird daher das europa''ische Recht eine entscheidende und zukunftweisende Bedeutung haben. In diesem Zusammenhang muβ die koreanische Wirtschaftsordnung sowohl den OECD-Nrmen als auch den EU-Richtlinien gema''β neu gepru''ft und systematisch verbessert werden. In Anbetracht dessen, daβ koreanische Recht das System des kontinental-europa''ischen Techts, insbesondere des deutschen Rechts u''bernommen hat, ist es auch fu''r die weitere Entwicklung der koreanischen Wirtschaftsordnung von groβer Bedeutung, in welcher Weise die Mitgliederla''nder der EU, insbesondere Deutschland, die EU-Richtlinie in ihrem Rechtssystem integrieren. Die vorliegende Abhandlung vermittelt in diesem Kontext nach einer Einfu''hrung in die Problematik (Kap. Ⅰ) einen U''berblick u''ber die Entstehungs- und Entwicklungsgeschichte (Kap. Ⅱ) sowie die Organisation und Ta''tigkeiten der OECD (Kap. Ⅲ); danach behandelt sie die Bedeutung der OECD-Normen fu''r die Weltwirtschaftsordnung (Kap. Ⅳ) und verbreitet schlieβlich Vorschla''ge fu''r die Ortentierung des ku''nftigen koreanischen Wirtschaftsrechts (Kap. Ⅴ). Im Prozeβ der Globalisierung wird der Druck des weltweiten Wettbewerbsfa''higkeit der einzelnen Leistungsanbieter erho''ht, sondern vielmehr die Konkurrenzkapazita''t des gesamten Systems der jeweiligen Gesellschaft verbessert werden. Die systematische Erfassung der Wirtschaftsordnung in ihrer Komplexita''t ist eine unabdingare Voraussetzung dafu''r.

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