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Regulation System for Off-Label Drug Use and Off-Label Prescriptions in Korea
Minjung Cho,Jongpill Lee,Soon Seung Kim,Ho Kim,Peol A Kim,Sun-Hee Kim,Jaesuk Yun,Jiwon Kim,Jung Hyun Kim,Nam Hee Kim,Chong-Run Chon,Lan Choi,Young Hoon Shim,Gwang Moon Lee,Shin-Jung Kang,Bo Kyung Choi 한국에프디시규제과학회(구 한국에프디시법제학회) 2013 한국에프디시법제학회 학술대회 Vol.2013 No.1
SIMPLICITY OF GROUPS OF EVEN ORDER
Minjung Choi,Seungkook Park 충청수학회 2014 충청수학회지 Vol.27 No.3
In this paper, we show that groups of order 2npq, where p, q are primes of the from p = 2n ¡ 1, q = 2n¡1 + p with n ¸ 3, are not simple and groups of order 2npqt for t ¸ 2, where p, q are odd primes of the form p = 2m ¡1, q = 2n ¡1 with m < n, are not simple.
SIMPLICITY OF GROUPS OF EVEN ORDER
Choi, Minjung,Park, Seungkook Chungcheong Mathematical Society 2014 충청수학회지 Vol.27 No.3
In this paper, we show that groups of order $2^npq$, where p, q are primes of the from $p=2^n-1$, $q=2^{n-1}+p$ with $n{\geq}3$, are not simple and groups of order $2^npq^t$ for $t{\geq}2$, where p, q are odd primes of the form $p=2^m-1$, $q=2^n-1$ with m < n, are not simple.
Choi, Minjung,Kang, Gumin,Shin, Dongheok,Barange, Nilesh,Lee, Chang-Won,Ko, Doo-Hyun,Kim, Kyoungsik American Chemical Society 2016 ACS APPLIED MATERIALS & INTERFACES Vol.8 No.20
<P>Strategies to confine electromagnetic field within ultrathin film emerge as essential technologies for applications from thin-film solar cells to imaging and sensing devices. We demonstrate a lithography-free, low-cost, large-scale method to realize broadband ultrathi-film metal dielectric-metal (MDM) absorbers, by exploiting gap-plasmon resonances for strongly confined electromagnetic field. A two-steps method, first organizing Au nanoparticles via thermal dewetting and then transferring the nanoparticles to a spacer - reflector substrate, is used to achieve broader absorption bandwidth by manipulating geometric shapes of the top metallic layer into hemiellipsoids. A fast-deposited nominal Au film, instead of a conventional slow one, is employed in the Ostwald ripening process to attain hemiellipsoidal nanoparticles. A polymer supported transferring step allows a wider range of dewetting temperature to manipulate the nanoparticles' shape. By incorporating circularity with ImageJ software, the geometries of hemiellipsoidal nanoparticles are quantitatively characterized. Controlling the top geometry of MDM structure from hemisphere to hemiellipsoid increases the average absorption at 500-900 nm from 23.1% to 43.5% in the ultrathin film and full width at half maximum of 132-324 nm, which is consistently explained by finite-difference time-domain simulation. The structural advantages of our scheme are easily applicable to thin-film photovoltaic devices because metal electrodes can act as metal reflectors and semiconductor layers as dielectric spacers.</P>
Development of Human-mouse Chimeric Antibodies Recognizing the SARS-CoV-2 Spike Protein
Minjung CHOI,Chaeyoon HA,Se-Ho PARK 한국생물공학회 2021 한국생물공학회 학술대회 Vol.2021 No.10
The Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), the identified cause of COVID-19, is regarded as an urgent problem throughout the world. Most neutralizing antibodies against SARS-CoV-2 focus on interfering with the contact between the spike (S) protein of the virus and its receptor, human angiotensin-converting enzyme 2 (hACE2). Here, we established a cell line expressing S protein of SARS-CoV-2 Wuhan type on its surface, as a substitute for an authentic virus, and immunized human IgG1 knock-in (hIgG1 KI) mice with previously mentioned cell line after irradiation to induce potent antibody responses. B cells were harvested from mice that received irradiated cell line and were measured by ELISA for serum titers of antigen-specific antibodies. The resulting positive and high antigen-specific antibody-producing B cells were further used in the hybridoma experiment. Positive clones from the hybridoma experiment were identified and thus, we suspect we have developed neutralizing antibody candidates that may be further studied and possibly be used as therapeutic agents against COVID-19.
Radiopaque markers and hydrogram in feline alimentary lymphoma
Choi, Jihye,Lee, Jinsoo,Jang, Jaeyoung,Choi, Heeyeon,Seo, Jimin,Lee, Minjung,Kim, Hyunwook The Korean Society of Veterinary Science 2012 大韓獸醫學會誌 Vol.52 No.2
Radiography, ultrasonography with hydrogram, and contrast studies using radiopaque markers were applied to evaluate alimentary lymphoma in two cats. The hydrogram facilitated the differentiation of pseudo-thickening from true wall thickening, and enabled an evaluation of wall layering and lymph nodes. In case 1, mechanical obstruction of the duodenum was confirmed with barium-impregnated polyethylene spheres (BIPS), a radiopaque marker; however, results obtained in case 2 were not as definitive. We expect that hydrograms and BIPS can be used as valuable alternative methods to evaluate the gastrointestinal (GI) tract although further studies in cases involving GI tumors are needed.
방사선 선량관리 서비스의 서비스품질과 고객만족과의 관계에 관한 실증연구
유민정(Minjung Yoo),김이중(Yijoong Kim),최상웅(Sangwoong Choi),최정일(Jeongil Choi) 인문사회과학기술융합학회 2018 예술인문사회융합멀티미디어논문지 Vol.8 No.5
본 연구는 의료서비스의 기초가 되는 방사선 선량관리 서비스의 품질 요인과 고객만족과의 관계를 실증적으로 분석하고자 하였다. 이를 위해 병원의 내원환자 140명을 대상으로 한 설문지를 기반으로 실증분석하였다. 분석결과, 선량관리의 서비스품질은 선량관리의 지각된 가치와 병원에 대한 신뢰에 통계적으로 유의미한 영향을 미치는 것으로 나타났다. 또한 이러한 선량관리의 지각된 가치는 병원에 대한 신뢰에 유의미한 영향을 미치지만 특이하게도 고객만족에는 유의미한 영향을 미치지 않았다. 이에 반해 병원에 대한 신뢰는 고객만족에 유의미한 영향을 미치는 것으로 나타났는데 이러한 분석결과로 보아, 선량관리서비는 기반서비스의 역할을 하는 것이고, 이를 통한 병원에 대한 신뢰구축이 고객만족에 중요한 요인임을 알 수 있다. 마지막으로 서비스품질과 지각된 가치 간의 관계에서 방사선피폭에 대한 건강염려가 조절변수로서 유의미한 영향을 미치지 않았다. 본 연구는 방사선 선량관리 서비스 품질 및 고객만족 제고를 위한 이론적 타당성 및 실무적 접근을 시도하였다는 점에서 의의를 찾을 수 있다. Drawing on the theoretical lens of SERVQUAL, this study investigates the impacts of the service quality on customer satisfaction on in the context of the radiation dose management, which are the foundation of medical services. For this purpose, the questionnaire was analyzed based on the questionnaire for 140 patients visiting the hospital. The analysis showed that the quality of service in dose management had a statistically significant effect on the perceived value of dose management and on the trust in hospitals. Moreover, the perceived value of this dose management had a significant impact on hospital trust, but it did not have a significant impact on customer satisfaction. On the other hand, trust in hospitals has been shown to have a significant impact on customer satisfaction, as a result of this analysis, dose management services serve as the basis of the underlying service and the hospital s satisfaction. Finally, in the relationship between service quality and perceived value, health concerns about radiation exposure did not have a significant effect as a control variable. This study is meaningful in that it has attempted to take a theoretical and practical approach to improving the quality of radiation dose management service and customer satisfaction.