부산.경남지역의 일부 고등학교 교사들의 물리치료에 대한 인식도 조사

김지원,박상현,주성희,김용권,안덕현,Kim, JI-Won,Park, Sang-Hyeon,Joo, Sung-Hui,Kim, Yong-Kwon,Ahn, Duck-Hyun 대한물리치료과학회 2003 대한물리치료과학회지 Vol.10 No.2

This study randomly chose 10 humanity high schools, which are located in Busan and KyoungNam province. We then examined the recognition rate of physical therapy among 378 teachers who were and still are working in the schools. 1. The recognition grade of physical therapeutics between men and women was significantly different with results of 80.7% of men and 69.7% of women(p<0.05). In the case of experiencing physical therapy, 83.6% of people said they knew the physical therapeutics and in the case of the opposite side, the result was also significantly different with a result of 67.8%(p<0.05). 2. We ranked the people on how much they knew about the physical therapeutics among men and women. With men, the actual experience of physical therapeutic came before what they heard from other people. In the case of women, what they heard from other people came first and the actual experience of physical therapeutic came after. According to the public information from Inje University, the recognition grade is recorded in the 3rd grade department as 21.5% while in the case of experiencing treatment from a physical therapist, the result was 39.1%. In the other department (the 1st grade department), what men and women heard from mass media was recorded at 17.5% and what they heard from other people, it was recorded at 33.8%(p<0.05). 3. The research about the recognition of academic ability of being a physical therapist was that 55.6% of teachers thought that 3-year-college was the best, which made the results different from the recognition grade of the experience of education(p<0.05). 4. In the recognition grade of physical therapeutics, there were significantly differences from 50.2% of men and 45.2% of women were expecting about 1mil ion won to 1.99million won. In case of 25.2% of people who have experience less than 15years at work, they expected about 2million to 2.99million won. The figures were higher than 10.1% of people who have experiences over 15years. About the recognition grade of physical therapists social level in the future is 48.8% of people who had experienced of physical therapy and 63.8% of people who never had experienced of it said it would be better in the future. From these results, the recognition about physical therapeutics and the view of its social status are optimistic and they know well about the level of academic ability of physical therapists. On the other hand, most teachers don't know exactly about physical therapists work. So we have to inform them aggressively for enhancing the recognition of physical therapy because high school students are well affected by their teachers when they face their future or major in university.

대한방사선종양학회지 게재 논문의 통계적 오류 현황

박희철(Hee Chul Park),최두호(Doo Ho Choi),안성복(Song-Vogue Ahn),강진오(Jin Oh Kang),김은석(Eun-Seog Kim),박원(Won Park),안승도(Seung Do Ahn),양대식(Dae Sik Yang),윤형근(Hyong Geun Yun),정은지(Eun Ji Chung),지의규(Eui Kyu Chie),표홍렬( 대한방사선종양학회 2008 Radiation Oncology Journal Vol.26 No.4

목 적: 본 연구는 대한방사선종양학회지 게재 논문의 통계 오류 현황을 파악하고 이에 근거한 문제 제기를 통해 학회지의 학술적 발전에 기여하고자 하였다. 대상 및 방법: 2006∼2007년 사이에 대한방사선종양학회지에 게재된 총 77편의 논문을 연구 대상으로 하였다. 각각의 논문에 적용된 통계 방법론의 적정성 평가는 통계점검표를 활용하였다. 통계점검표에는 연구의 종류, 통계기법의 사용 범위, 각 논문에 적용된 통계 기법의 종류, 통계적 기법 적용의 타당성 항목이 포함되었다. 통계 오류는 ‘생략의 잘못’과 ‘시행의 잘못’ 항목으로 나누었다. 한 논문에서 서로 다른 항목이 여러 가지 관찰된 경우 각각 횟수로 측정하였다. 같은 항목이 2회 이상 측정된 경우 1회로 횟수를 측정하였다. 통계 전문가가 개별 논문을 대상으로 통계점검표를 작성하였다. 일차 평가자가 방사선종양학 전문가가 아닌 것에서 올 수 있는 평가 오류가 있을 수 있으므로 개별 통계점검표는 간행위원회에서 한 차례 더 세부 점검을 하였다. 작성된 통계점검표의 통계 분석은 SAS (version 9.0, SAS Institute, NC, USA) 소프트웨어를 이용하였고 빈도분석을 시행하여 각 항목의 빈도와 백분율을 산출하였다. 결 과: 총 77편 중 원문을 다운로드 할 수 없었던 4편을 제외한 73편의 게재 논문을 대상으로 평가하였다. 증례보고는 5편, 원저 논문은 68편이었다. 대상 논문 중 46편의 논문에서 통계적 추론을 사용하였고, 16편의 논문에서 단순한 기술통계를 사용했으며, 11편의 논문에서는 통계적 기법을 사용하지 않았다. 추론통계를 사용한 46편의논문에서 사용된 추론통계의 횟수는 각각 분할표분석 17회(37.0%), 비교통계분석 23회(50.0%), 회귀분석 7회(15.2%), 상관분석 5회(10.9%), 생존분석이 27회(58.7%)였다. 통계 기법을 활용하여 연구 결과를 분석할 때 통계적용의 오류가 없는 논문은 19%였다. ‘생략의 잘못’은 34편(50.0%)의 논문에서 총 50회 관찰되었다. ‘시행의 잘못’은 35편(51.5%)의 논문에서 총 47회 관찰되었다. ‘생략의 잘못’과 ‘시행의 잘못’이 모두 발견된 논문은 21편 (30.9%)이었다.결 론: 대한방사선종양학회지에 게재된 논문에서 통계 분석 과정의 다양한 영역에 걸쳐 크고 작은 통계적 오류가 있음을 확인하였다. 향후 대한방사선종양학회지 투고 논문의 심사 과정에서 통계 오류에 관한 적절한 심사를 추가하는 것이 필요하다고 판단된다. Purpose: To improve the quality of the statistical analysis of papers published in the Journal of the Korean Society for Therapeutic Radiology and Oncology (JKOSTRO) by evaluating commonly encountered errors. Materials and Methods: Papers published in the JKOSTRO from January 2006 to December 2007 were reviewed for methodological and statistical validity using a modified version of Ahn’s checklist. A statistician reviewed individual papers and evaluated the list items in the checklist for each paper. To avoid the potential assessment error by the statistician who lacks expertise in the field of radiation oncology; the editorial board of the JKOSTRO reviewed each checklist for individual articles. A frequency analysis of the list items was performed using SAS (version 9.0, SAS Institute, NC, USA) software. Results: A total of 73 papers including 5 case reports and 68 original articles were reviewed. Inferential statistics was used in 46 papers. The most commonly adopted statistical methodology was a survival analysis (58.7%). Only 19% of papers were free of statistical errors. Errors of omission were encountered in 34 (50.0%) papers. Errors of commission were encountered in 35 (51.5%) papers. Twenty-one papers (30.9%) had both errors of omission and commission. Conclusion: A variety of statistical errors were encountered in papers published in the JKOSTRO. The current study suggests that a more thorough review of the statistical analysis is needed for manuscripts submitted in the JKOSTRO.

Mutagenic Assessment of Olmesartan Cilexetil by Bacterial Mutation Assay

Ji Won Kim,Ilyoung Ahn,Sung Ha Ryu,Hong Ryeol Jeon,Bong Sang Lee,Kyu-Bong Kim 한국독성학회 2013 Toxicological Research Vol.29 No.3

Extremely Robust and Patternable Electrodes for Copy-Paper-Based Electronics

Ahn, Jaeho,Seo, Ji-Won,Lee, Tae-Ik,Kwon, Donguk,Park, Inkyu,Kim, Taek-Soo,Lee, Jung-Yong American Chemical Society 2016 ACS APPLIED MATERIALS & INTERFACES Vol.8 No.29

<P>We propose a fabrication process for extremely robust and easily patternable silver nanowire (AgNW) electrodes on paper. Using an auxiliary donor layer and a simple laminating process, AgNWs can be easily transferred to copy paper as well as various other substrates using a dry process. Intercalating a polymeric binder between the AgNWs and the substrate through a simple printing technique enhances adhesion, not only guaranteeing high foldability of the electrodes, but also facilitating selective patterning of the AgNWs. Using the proposed process, extremely crease-tolerant electronics based on copy paper can be fabricated, such as a printed circuit board for a 7-segment display, portable heater, and capacitive touch sensor, demonstrating the applicability of the AgNWs-based electrodes to paper electronics.</P>

A New Concept Oral Care Patch with an Easily Removable Brush-off Film for More Convenient and Comfortable Use

Ji Young Kim(김지영),Seong-Eun Bang(방성은),Jae-Hyun Ahn(안재현),Jong Won Park(박종원),Yongju Jung(정용주) 한국고분자학회 2017 폴리머 Vol.41 No.5

브러쉬-오프 타입 구강 케어 패치 개발에 관한 최초의 연구로서, 에틸 셀룰로오스(EC)와 하이드록시프로필 메틸셀룰로오스(HPMC)로 구성된 고분자 블렌드 필름을 solvent casting 방법으로 제조하였다. 고분자 블렌드 필름의 브러쉬-오프 패치로서의 적합성을 평가하기 위해 접촉각 측정, 인장강도 시험 및 광학현미경을 이용한 수화 시간에 따른 표면 형상 변화 측정 등을 수행하였다. 본 연구에서 측정된 표면 특성, 인장강도 및 수화 특성 등과 같은 필름의 물리화학적 특성은 고분자 조성에 크게 의존하는 것으로 나타났다. 무엇보다도, 기계적 물성과 수화 특성 측면에서 EC와 HPMC가 1:1 또는 2:1의 비율로 제조된 고분자 블렌드 필름이 30분 브러쉬-오프 패치로서 가장 적합한 것으로 나타났다. 이 연구는 브러쉬-오프 필름 패치를 디자인하고 평가하는 구강 케어 성분 전달 관련 연구분야에 새로운 방법론을 제시할 것으로 기대한다. As the first study to develop a brush-off type oral care patch, the polymer-blended films composed of ethyl cellulose (EC) and hydroxypropyl methylcellulose (HPMC) were prepared by a solvent casting method. Contact angle measurements, tensile strength tests and optical topography measurements were performed to assess the suitability of the polymer blends as a brush-off patch film. The physicochemical properties of the polymer films were dependent profoundly on their composition. The morphologies of the blended polymer film were significantly altered upon contact with water over time. In terms of mechanical strength and hydration property, the polymer-blended films of EC and HPMC with a mass ratio of 1:1 or 2:1 were found to be highly suitable for a 30 min brush-off patch. We believe that this study can provide a new and versatile methodology of both designing and evaluating a brush-off film patch for oral care substance delivery.

[P031] A case of neurothekeoma mimicking a hemangioma clinically

( Ji Hyuck Hong ),( Dae Yeon Kim ),( Dong Won Lee ),( Tae Hyung Ryu ),( Jae Eun Choi ),( Hyo Hyun Ahn ),( Young Chul Kye ),( Soo Hong Seo ) 대한피부과학회 2017 대한피부과학회 학술발표대회집 Vol.69 No.1

Neurothekeomas are uncommon benign neoplasm of presumed nerve sheath origin. Grossly, the neurothekoemas are asymptomatic, solitary, flesh-colored, soft dermal nodules. They show certain microscopic features: lobulated, spindled cells embedded within a myxoid stroma. According to the amount of myxoid stroma, it is categorized into three types: myxoid, cellular, and mixed. Immunhistochemically, myxoid types show S-100 positive and rarely negative. Cellular types are generally not stained with S-100, but positively stained with CD68. Mixed-type show overlapping features of both variants. A 45-year-old male presented with erythematous protruding nodule on back. He had a history of hypertension. Excisional biopsy was donewith an impression of the pyogenic granuloma which is a common, solitary and pedunculated vascular-proliferating lesion. Histopathology of the specimen showed lobular dermal tumor nodules composed of spindle-shaped and stellate cells with myxoid stroma. Some nodules are composed of fascicles of epithelioid tumor cells with sparse mucinous matrix. Numerous mitotic figures are observed and S-100 staning was negative, but CD68 and vimentin staining showed positivity. Interestingly, ectatic vessels on papillary dermis were observed and considered as contributing to clinical feature appearing like hemangioma. Herein, we report an interesting case of mixed-type neurothekeoma which clinically appeared as a pyogenic granuloma.

Protective effects of Acanthopanax divaricatus extract in mouse models of Alzheimer’s disease

Ji-Jing Yan,Won-Gyun Ahn,Jun-Sub Jung,Hee-Sung Kim,Ashraful Hasan,Dong-Keun Song 한국영양학회 2014 Nutrition Research and Practice Vol.8 No.4

BACKGROUND: Acanthopanax divaricatus var. albeofructus (ADA) extract has been reported to have anti-oxidant, immunomodulatory, and anti-mutagenic activity. MATERIALS/METHODS: We investigated the effects of ADA extract on two mouse models of Alzheimer’s disease (AD); intracerebroventricular injection of β-amyloid peptide (Aβ) and amyloid precursor protein/presenilin 1 (APP/PS1)-transgenic mice. RESULTS: Intra-gastric administration of ADA stem extract (0.25 g/kg, every 12 hrs started from one day prior to injection of Aβ1-42 until evaluation) effectively blocked Aβ1-42-induced impairment in passive avoidance performance, and Aβ1-42-induced increase in immunoreactivities of glial fibrillary acidic protein and interleukin (IL)-1α in the hippocampus. In addition, it alleviated the Aβ1-42-induced decrease in acetylcholine and increase in malondialdehyde levels in the cortex. In APP/PS1-transgenic mice, chronic oral administration of ADA stem extract (0.1 or 0.5 g/kg/day for six months from the age of six to 12 months) resulted in significantly enhanced performance of the novel-object recognition task, and reduced amyloid deposition and IL-1β in the brain. CONCLUSIONS: The results of this study suggest that ADA stem extract may be useful for prevention and treatment of AD.

[P032] Calcinosis cutis associated with subcutaneous teriparatide acetate

( Ji Hyuck Hong ),( Dae Yeon Kim ),( Dong Won Lee ),( Tae Hyung Ryu ),( Soo Hong Seo ),( Hyo Hyun Ahn ),( Young Chul Kye ),( Jae Eun Choi ) 대한피부과학회 2017 대한피부과학회 학술발표대회집 Vol.69 No.1

Calcinosis cutis is characterized by the deposition of calcium salts in cutaneous and subcutaneous tissues. There are four categories: metastatic, dystrophic, iatrogenic, and idiopathic. Metastatic cutaneous calcification is associated with elevated serum calcium or phosphorus level in a condition such as chronic renal failure. Dystrophic type shows normal serum calcium and phosphorus level with tumor or infection. Iatrogenic cause includes intravenvous calcium chloride use or trauma. Not yet, there is no report associated with the subcutaneous administration of teriparatide acetate. Only the cutaneous vascular calcification secondary to treatment with teriparatide has been reported. A 61-year-old female with osteoporosis and diabetes mellitus who has been administered teriparatide acetate subcutaneously for a month presented with multiple subcutaneous hard nodules. The lesions have developed on right tibia, left thigh, and knee during a month. Some lesions showed erythema, fluctuation and tenderness. Her eletrolytes and parathyroid hormone, Vitamin D levels were within the normal range. Incisional biopsy was done and showed multiple giant cells and calcification. The Patient stopped administering teriparatide acetate and other lesions have improved, Here we report a first case of calcinosis cutis associated with subcutaneous teriparatide acetate.

Differential regional infarction, neuronal loss and gliosis in the gerbil cerebral hemisphere following 30 min of unilateral common carotid artery occlusion

Ahn, Ji Hyeon,Song, Minah,Kim, Hyunjung,Lee, Tae-Kyeong,Park, Cheol Woo,Park, Young Eun,Lee, Jae-Chul,Cho, Jun Hwi,Kim, Young-Myeong,Hwang, In Koo,Won, Moo-Ho,Park, Joon Ha Springer-Verlag 2019 Metabolic brain disease Vol.34 No.1

RINGS OVER WHICH POLYNOMIAL RINGS ARE ARMENDARIZ AND REVERSIBLE

Ahn, Jung Ho,Choi, Min Jeong,Choi, Si Ra,Jeong, Won Seok,Kim, Jung Soo,Lee, Jeong Yeol,Lee, Soon Ji,Lee, Young Sun,Noh, Dong Hyun,Noh, Yu Seung,Park, Gyeong Hyeon,Lee, Chang Ik,Lee, Yang The Kangwon-Kyungki Mathematical Society 2012 한국수학논문집 Vol.20 No.3

A ring R is called reversibly Armendariz if $b_ja_i=0$ for all $i$, $j$ whenever $f(x)g(x)=0$ for two polynomials $f(x)=\sum_{i=0}^{m}a_ix^i,\;g(x)=\sum_{j=0}^{n}b_jx^j$ over R. It is proved that a ring R is reversibly Armendariz if and only if its polynomial ring is reversibly Armendariz if and only if its Laurent polynomial ring is reversibly Armendariz. Relations between reversibly Armendariz rings and related ring properties are examined in this note, observing the structures of many examples concerned. Various kinds of reversibly Armendariz rings are provided in the process. Especially it is shown to be possible to construct reversibly Armendariz rings from given any Armendariz rings.