심부경부감염으로 진행되는 치성감염의 중증도 평가

허현아 대한치과의사협회 2021 대한치과의사협회지 Vol.60 No.1

Uncontrolled odontogenic infections can lead to deep neck infection. Once it progresses to deep spaces of the neck, it can be life-threatening. Therefore, prompt recognition and effective management is mandatory. The aim of this study was to introduce the criteria for evaluating the severity of infection and deciding hospitalization which enables clinicians to effectively manage patients and furthermore to save lives.

Orthodontic Tooth Movement in the Osteoporotic Rat Maxilla by Local Application of Human Parathyroid Hormone

허현아,박수현,Hyun-Sun LEE,이원,Hyun Joon Yoon,표성운 대한통합치과학회 2021 대한통합치과학회지 Vol.10 No.2

This study aimed to investigate the effect of parathyroid hormone (PTH) on tooth movement in an osteoporotic rat by comparing of the tooth movement distances and histologic observation. Fifteen, 8-week-old female rats were classified into three groups (n=5, respectively): (1) sham-operated control group, (2) ovariectomized group (OVX), and (3) ovariectomized rats injected with 30 μg/kg of PTH group (PTH). To induce the orthodontic tooth movement, a closedcoil spring appliance was placed and activated with the continuous force of 50 cN to the maxillary first molar. During the experimental period, the amount of tooth movement was measured at 7, 14, 21 days and all rats were sacrificed for histologic specimen preparation. The OVX group showed the fastest tooth movement, and the distance of tooth movement in the OVX group was significantly greater than that in the other two groups at 14 and 21 days (P=0.00 and P=0.02, respectively). The histologic sections revealed the evidence of osteopenia in both the OVX and PTH than the control group. And there was tendency to enhanced bone turnover in the inter-radicular bone of the PTH group. In summary, PTH treatment did not promote tooth movement in the osteoporotic rat model but showed the increased bone turnover. Therefore, further study is required to consider the clinical application of PTH during orthodontic treatment.

Tooth Loss and Long-term Clinical Outcomes in Kidney Transplantation Recipients

허현아,박수현,윤현중,표성운 대한통합치과학회 2023 대한통합치과학회지 Vol.12 No.1

Tooth loss is considered as a representative index of poor oral health. The aim of this study was to identify clinical outcomes following kidney transplantation in relation with the number of tooth loss. Clinical data from 978 patients receiving kidney transplantation between 2010 and 2020 in a single cohort was investigated. Groups were divided according to number of tooth loss (0 to 4, 5 to 9, over 10). Retrospective study was performed by univariate and multivariate logistic statistical analysis for association of clinical variables, recipient’s kidney function, acute rejection episode after kidney transplantation and death with the number of tooth loss. The age, gender, body mass index, accompanying comorbidities, preoperative laboratory values and immunosuppressive regimens were not related with the number of tooth group. No significant association was found between the number of tooth loss and kidney function and risk of rejection after kidney transplantation. However, tooth loss was positively associated with patient survival who had more than 10 teeth lost (HR 26.268, 95% CI 3.506-196.82, P<0.001). There was no direct evidence that poor oral health could worsen the clinical outcome of kidney transplantation. However, the status of tooth loss might jeopardize the survival of kidney transplantation recipients. The participation of oral health care providers in the transplantation team is recommended.

제31차 학술대회 : 128. 갑상선 질환의 임상적 고찰

허현,노병선,김수용,김세환 () 대한외과학회 1979 대한외과학회 학술대회자료집 Vol.- No.-

정치적 노예제폐지론의 제3당 정치를 넘어서 -개리슨주의자들의 반(反)정치론 재고(再考)-

허현 한국서양사학회 2018 西洋史論 Vol.0 No.139

This study revisits the antipolitical position of William Lloyd Garrison and the Garrisonian abolitionists in the antebellum America and attempts to understand their political tactics and strategies and political ideas beyond the independent third-party politics of the political abolitionism. While there has been a clear academic consensus about the historical importance of Garrison and the Garrisonians in the abolitionist movement, it cannot be gainsaid that there is a controversial issue in the historical roles they played in the movement, in comparison to political abolitionists such as the Liberty men, the Free Soilers, and the Republicans. Some historians have described Garrison and the Garrisonians as impractical and visionary, ultimately failing to understand the impact of Garrisonian abolitionism on the antislavery movement. In fact, it is too illogical and ahistorical to observe that Garrison and the Garrisonians were not interested by the means of political victory, being little more of a group of visionaries than irresponsible demagogues. On the contrary, their uncompromising, radical abolitionism was based on the thorough analysis of reality. Thus, they had never downplayed “politics”. Considering the current political situations then, they invented proper political tactics and strategies to maximize the impact of their radical abolitionism. In order to polarize the American politics, the Garrisonians tried to employ radical abolitionist ideas including immediate abolition and disunionism. Additionally, Garrison and the Garrisonians did not opposed the establishment of independent antislavery politics through the creation of the antislavery third-party unconditionally. Despite being hostile to the Liberty Party, they were proud of their role in the development of the Free Soil and Republican parties and regarded them as their allies in the antislavery struggle. However, Garrison’s “antipolitical” position did not blind him to the values of politics as an antislavery tool. Beyond the third-party politics of the political abolitionism, however, Garrison and the Garrisonians played a crucial role in the creation of a political culture of emancipation. 본 연구의 목적은 19세기 미국 노예제폐지운동의 대부이자 대표적인 급진적 노예제폐지론자라고 할 수 있는 윌리엄 로이드 개리슨과 그를 추종했던 개리슨주의자들의 반(反)정치론을 재고하면서 정치적 노예제폐지론의 독자적인 제3당 정치를 넘어서 이들이 추구하고자 했던 궁극적인 정치적 전략⋅전술과 이념을 확인해 보고자 하는 것이다. 개리슨과 개리슨주의자들이 노예제폐지운동 과정에서 가지고 있는 역사적 중요성에 대해서는 분명한 합의가 이루어져 있음에도 불구하고 이들의 역사적 역할에 대해서는 의외로 논쟁적인 측면이 있다는 사실을 부정할 수 없다. 일부 역사가들은 개리슨주의자들이 도덕적 설득이라는 지나치게 이상적인 운동 전술과 즉각적인 노예제폐지라는 비현실적인 운동 목표만을 고집함으로써 1840년대 초반 정치적 노예제폐지론의 등장과 함께 역사 속으로 사라져간 세력으로 묘사하고 있다. 하지만 내전 이전 미국 사회의 인종주의적 통치 질서와 노예제체제에 커다란 균열을 가져왔던 개리슨과 개리슨주의자들이 정치적 승리의 방식에 관심이 없던 비현실적 언어유희집단에 불과했다는 해석은 너무 비논리적이며 비역사적이다. 이들의 비타협적인 투철한 이념, 이른바 개리슨주의는 사변적으로 달성된 것이 아니라 철저한 현실분석에 토대를 두고 있었다. 그래서 이들은 결코 ‘정치’를 경시할 수 없었을 뿐만 아니라 당연히 당시의 정치적 상황에 맞는 정치적 전술과 전략을 구상하고 있었다. 이들은 콘크리트처럼 단단한 당시의 정치지형에 균열을 내기 위해서는 즉각적인 노예제폐지와 연방분리주의를 포함하는 급진주의의 활용 외에는 다른 방법이 없다는 것을 인식하고 있었고 실제로 그런 전략을 구사했다. 더구나 개리슨과 개리슨주의자들은 정치적 노예제폐지론자들이 추진했던 제3당 창설을 통한 이른바 독자적 정치세력화에 대해 무조건적으로 반대했던 것은 아니었다. 이들이 자유당에 대해 적대적이었던 것은 사실이지만 반(反)노예제세력의 독자적 정치세력화라는 시대적 요구를 무시할 수 없었다. 이들은 자유당 이후 자유토지당과 공화당의 탄생에 적극적인 역할을 수행했음을 자부하고 있었고 이들을 정치적 우군으로 인식하고 있었다. 하지만 이들은 여기서 그치지 않고 정치적 노예제폐지론세력의 제3당 정치를 넘어서 “해방의 정치 문화” 창출이라는 혁명적 역할을 담당했으며 1840년 이후 내전의 발발까지 노예제폐지운동에서 독자적이면서도 중요한 역할을 놓치지 않았다.

국내 의류 브랜드 업체의 오더 의뢰방식에 관한 실태조사 - 서울시 의류 브랜드 업체를 중심으로 -

허현서,임호선 한국의류산업학회 2019 한국의류산업학회지 Vol.20 No.2

Domestic apparel products labeled as ‘Made in Korea’ in the Chinese market are recognized as a high quality products due to the influence of the Korean Wave (Intergen Consulting Group, 2007). This study analyzes the patterns and order arrangement types of a fashion brand company commissioned to produce apparel in Seoul, Korea in order to rebuild a network of small sewing factories scattered in Korea, reorganize operations, and to find the possibility of regenerating the Korean sewing industry by establishing contact points with domestic sewing factories. We surveyed 100 apparel brand companies in Seoul listed in the 2014/2015 Korea Fashion Brand Annual (Apparel News, 2014) and conducted a questionnaire survey on the company’s general management status, type of fabric materials dealt with, and major contact points and methods of production handling. The frequency analysis indicated that the main production material with cloth type was woven fabric with ladies’ clothes. The Planning MD team has the highest rate of ordering production with delivery method to the production factory after purchasing fabric and trims. Most respondents answered that they would select a production factory based on recommendations from acquaintances. This was due to a lack of no objective indicator provided by the sewing factory at present and the absence of objectively proceeded communication with brand companies. In this study, we analyze various conditions and measurements for production arrangements from a fashion brand company to revitalize sewing factories in Korea.

한국의학물리학회 선형가속기 외부 품질관리 실시 현황보고

허현도,조광환,조삼주,최상현,김동욱,황의중,김기환,민철기,최태진,오영기,이승준,박달,박성광,지영훈,Huh, Hyun Do,Cho, Kwang Hwan,Cho, Sam Ju,Choi, Sang Hyoun,Kim, Dong Wook,Hwang, Ui-Jung,Kim, Ki Hwan,Min, Chul Kee,Choi, Tae Jin,Oh, Young Kee,Le 한국의학물리학회 2013 의학물리 Vol.24 No.4

전문가 그룹의 외부검사를 통하여 의료기관 자체적으로 시행되고 있는 품질관리를 평가하고 구조적 문제점에 대한 상호보완을 하고자 하였다. 외부 검사의 정당성 확보를 위해 전국 80여 개의 의료기관 중 지역 분포를 고려하여 30여 개를 선정하였고, 최종 25개의 의료기관이 자발적 참여의사를 신청하였다. 참여의료기관은 비공개를 원칙으로 하였고, 사전에 상호 비교하여 검증된 측정 장비를 가지고 직접 방문하여 측정하는 것을 원칙으로 하였다. 두 개 이상의 광자선을 대상으로 출력선량을 측정하였고, 갠트리회전 정확도, 콜리메이터 회전 정확도, 다엽콜리메이터 이동 위치 정확도 등을 측정하였다. 출력선량 측정에서 6 MV의 경우 -0.8%~4.5%까지 절대오차를 보였고, 10 MV의 경우 -0.79%~3.01%이었고, 15 MV에서 -0.7%~0.07% 절대오차를 나타내었다. 25개 의료 기관을 대상으로 한 50개의 광자선 중에서 절대 흡수선량이 2% 이상 되는 에너지가 8개(16%)로 나타났다. 조사면과 갠트리, 콜리메이터 회전축 일치도는 2개 의료기관을 제외하고 모두 ${\pm}2$ mm 이내의 결과를 보였다. 다엽콜리메이터 이동 위치 정확도는 모두 ${\pm}1$ mm 이내의 정확도를 보였다. 에너지 선질 조사에서 광자선 6 MV의 경우 KQ 값의 최고값과 최저값의 차이는 0.4%로 나타났다. 물 흡수선량 기반 측정 기준서 사용기관은 21개(84%), 공기 흡수선량 기반 측정 기준서 사용기관은 4개(16%)로 조사되었고, SSD 측정법을 사용하는 기관은 22개, SAD 측정법을 사용하는 기관은 3개 기관으로 조사되었다. 외부검사는 자체적으로 시행되고 있는 품질관리의 구조적인 문제점을 찾아 상호 보완하는 것임으로 매우 중요하다. 따라서 전문가 그룹 및 국가가 함께 주기적이고, 지속적인 외부검사가 시행 될 수 있도록 국제 수준의 전문가의 양성 및 국가지원 제도가 필요하다고 사료된다. The aim of this work is to verify the self-quality assurances in medical institutions in Korea through the external audits by the group of experts and have a mutual discussion of the systematic problems. In order to validate the external audits 30 of 80 medical institutions across the nation were picked out considering the regional distribution and the final 25 institutions applied voluntarily to take part in this work. The basic rules were setup that any information of the participants be kept secrete and the measurements be performed with the dosimetry system already verified through intercomparision. The outputs for 2 or more photon beams, the accuracy of gantry rotation and collimator rotation and the poistional accuracy of MLC movement were measured. The findings for the output measurement showed the differences of -0.8%~4.5%, -0.79%~3.01%, and -0.7%~0.07% with respect to that of the verified dosimetry system for the 6MV, 10MV, and 15MV, respectively. For the reference absorbed dose 8 (16%) of 50 photon beams in 25 medical institutions differed 2.0% or greater from the reference value. The coincidences of Field size with x-ray beam and radiation isocenters of Gantry roration and collimator rotation gave the results of within ${\pm}2$ mm for every institute except 2 institutions. The positional accuracy of MLC movement agreed to within ${\pm}1$ mm for every institute. For the beam qualities of 6 MV photon beams kQ values showed the distribution within 0.4% between maximum and minimum. For the protocols 21 institutions (84%) used absorbed dose to water based protocol while 4 insitutions (16%) used air kerma based one. 22 institutions employed the SSD technique while 3 institutions did the SAD one. External audit plays an important role in discovering the systematic problems of self-performing Quality Assurances and having in depth discussion for mutual complementation. Training experts of international level as well as national support system are required so that both the group of experts of medical physicists and government laboratory could perform together periodical and constant external audits.

공공보행통로의 규율에 관한 주택법 시행령제47조 제1항의 정비 필요성

허현 법조협회 2014 法曹 Vol.63 No.8

Often after public pedestrian roads are installed in apartment communities according to district unit plans or housing development plan approvals, those roads are later arbitrarily closed off by residents after examination of the development is completed. Subsequently, conflicts and legal disputes arise between the residents of such developments and their neighboring communities that utilize those roads. Such arbitrary closure of public pedestrian roads should be regulated since those roads were installed in public interest, mainly for the convenience of pedestrians when considering patterns of traffic and pedestrian usage. Hence, this paper reviews Article 54 of the 「National Land Planning and Utilization Act」, Article 43 Clause 1 of the 「Building Act」 and Article 42 Clause 2 of the 「Housing Act」, which seem to be applicable to the issue at hand. But, Article 43 Clause 1 of the 「Building Act」 (regulating public open spaces) is unsuitable for such cases. While, Article 54 of the 「National Land Planning and Utilization Act」 and Article 42 Clause 2 of the 「Housing Act」 may also be applicable, their provisions are limited in resolving this issue. Meanwhile, if we recognize that an implied public obligation of maintaining public pedestrian roads are delegated to residents pursuant to the approval of the housing development plan, corrective actions may be taken on the basis of Article 91 of the 「Housing Act」. Yet, according to the theory about the succession of public obligation in administrative law without explicit provisions in the 「Housing Act」, delegation of such public obligations cannot be recognized. Residents should not bear public obligations without clear legal grounds based on laws, even if the need to regulate arbitrary closures of roads by residents is evident. This paper concludes that this issue can be resolved through amendment of Article 47 Clause 1 of the 「Housing Act」 Enforcement Decree that regulates the management of apartment communities. Such revision could provide clear legal requirements for closing public pedestrian roads.

Cu / parylene 전극구조 H : LINbO 광변조기에 대한 연구 ( A Study on H : LINbO Optical Modulator with Cu / parylene Electrodes )

허현,문춘기,김민수,반재경,이도재 한국통신학회 1998 한국통신학회 기타 간행물 Vol.- No.-

생진양혈탕(生津養血湯) 물 추출물의 Streptozotocin 유발 고지혈증에 대한 효과

허현,김대준,변준석,최빈혜,Hur, Hyun,Kim, Dae-Jun,Byun, Joon-Seok,Choi, Bin-Hye 대한한방내과학회 2006 大韓韓方內科學會誌 Vol.27 No.2

In the Present study, the therapeutic hypolipemic effect of water extract of Saengjinyanghyl-tang (SJYHT), a herbal extract mixture for treatment of diabetes in oriental medicine was tested in Streptozotocin-induced diabetic hyperlipemic SD rats. For detect the therapeutic effects, the test articles were once a day dosed for 28 days by gastric gavage at a dosage 1000, 500 and 250mg/kg from 25 days after STZ-dosing, and the changes on body weight and gains, serum LDL, HDL, Triglyceride and Total Cholesterol levels were observed In addition, the effects of test articles were compared to that of Simvastatin, a well known hypolipemic agents 10mg/kg-dosing group. Base on these results, although no meaningful effects were detected on the serum HDL levels, it is concluded that Saengjinyanghyul-tang water extracts have relatively good favorable effect treatment of STZ-induced diabetic hyperlipemia because they showed clear evidences inhibit the increase of serum LDL, Triglyceride and Total Cholesterol levels. Therefore, it is expected that Saengjinyanghyul-tang extract has favorable potency to development hypolipemic drugs. In addition, about 1000mg/kg of Saengjinyanghyul-tang extracts have similar effect compared to that of Simvastatin 10mg/kg. The effective dosage of Saengjinyanghyul-tang water extracts in the present study was considered as below 250mg/kg.