유통업의 지식경영 도입 방안에 관한 연구

Yoo,Sang-jin,Cha,Young-han 한국산업경영학회 2002 한국산업경영학회 발표논문집 Vol.2002 No.2

In this study, an effective methodology to introduce knowledge management system into the retail business is suggested by overall analysis of examples those were carried out in business area. Different from existing studies, which focus on theoretical aspect only, this study focuses its attention on theoretical & practical aspect simultaneously and tries to find a long-term & integrated knowledge management strategy. With examining the examples of knowledge management, this study deals with the fundamental conception, the procedure and the organization of knowledge management. Moreover, this study practically analyzes the knowledge management system of the company named "H", one of the retail business companies. By clarifying the problems, which is involved in the knowledge management process of the above company, this study suggests an improvement methodology to introduce and settle down knowledge management system into retail business company for the future. This study has good results in the viewpoint that it gives a definite direction of knowledge management introduction. However, there is some limitation such as the insufficiency of examples and the omission of documented analysis. Therefore, this study leaves some task to be achieved in the future.

초등국어 1학년의 연필 잡는 법 연구

오판진(Oh, Pan-jin),유상언(Yoo, Sang-eon) 학습자중심교과교육학회 2022 학습자중심교과교육연구 Vol.22 No.7

Objectives The purpose of this study is to analyze how to hold a pencil in the first grade of elementary school Korean and to find ways to help students write correctly. Methods A case study method was used among the qualitative studies, and interviews with Yoo Sang-eon for a single case of how to hold a pencil, Hangul files related to his claims, YouTube materials, student handwriting materials, and testimonials were used in this study. Textbooks and teacher s guides were analyzed in a multi-layered manner, along with texts and letters. Results As a result, it was found that there was a problem with the position of the finger guiding in the current 2015 revised curriculum for the first grade textbook. In other words, if you look at the position of your fingers when writing, holding a pencil while holding your thumb and index finger in a circle is not the optimal way. Also, it is not appropriate to place your elbows on the desk when writing, so it is a guideline that needs to be corrected. On the other hand, Yoo Sang-eon s method of holding a pencil is a better way to help students write correctly. Here s how to hold a pencil correctly, as he suggests. First, put the tip of the thumb and middle finger together to make a round shape, and then place the pencil on the nail area of the middle finger and the area next to the bone where the index finger begins. Second, lift your thumb upwards, bend it at a right angle, and press the pencil gently from above. Third, bend the forefinger close to a right angle and put it lightly between the thumb and middle finger without straining. Fourth, write in such a way that the wrist or arm where you are writing extends slightly over the edge of the desk. Conclusions If you write according to the shape and position of the finger holding the pencil as suggested by Yoo Sang-eon, the force of the finger applied to the pencil is maintained evenly, so that you can write more correctly. 목적 이 연구의 목적은 초등국어 1학년의 연필 잡는 법을 분석하고, 학생들이 바른 글씨를 쓰도록 돕는 방안을 모색하는 데 있다. 방법 이 연구에서는 질적 연구 가운데 사례 연구라는 연구 방법을 사용하였고, 유상언의 연필 잡는 법이라는 단일 사례를 대상으로 그와의 인터뷰 자료와 그가 주장하는 내용과 관련한 한글 파일, 유튜브 자료, 학생들의 글씨 자료, 소감문이나 편지글 등과 함께 교과서와 교사용지도서를 다층적으로 분석하였다. 결과 그 결과 현행 2015 개정 교육과정 1학년 교과서에서 안내하고 있는 손가락의 위치에 문제가 있다는 것을 발견하였다. 즉, 글씨를 쓸 때 손가락의 위치를 보면, 엄지와 검지를 둥그렇게 모으면서 연필을 잡는 방법은 최적의 방법이 아니라는 것이다. 그리고 글씨를 쓸 때 팔꿈치를 책상 위에 올리도록 한 것도 적절하지 못해서 수정해야 할 지침이다. 이와 달리 유상언이 제안하는 연필을 바르게 잡는 방법은 학생들이 글씨를 바르게 쓰는 데 도움을 주는 더 나은 방법이다. 그가 제안하는 연필을 바르게 잡는 방법은 다음과 같다. 첫째, 엄지손가락과 가운뎃손가락 끝을 맞잡아 둥글게 만든 후 가운뎃손가락의 손톱 부위와 집게손가락이 시작되는 뼈 옆 부위에 연필을 올린다. 둘째, 엄지손가락을 위로 들어서 직각으로 꺾은 후 연필을 위에서 지그시 눌러 준다. 셋째, 집게손가락도 직각 가깝게 꺾어서 엄지와 가운뎃손가락의 사이에 힘주지 않고 살짝 붙여만 준다. 넷째, 글씨 쓰는 손목이나 팔이 책상 모서리에 약간 걸치는 정도로 해서 글씨를 쓴다. 결론 유상언이 제안하는 연필 잡는 손가락의 모양과 위치에 따라 글씨를 쓰면, 연필에 가해지는 손가락의 힘이 균등하게 유지되어 편안한 자세로 글씨를 더 바르고 쉽게 쓸 수 있다.

Ultrasonography for lumbar neuraxial block

Yoo Seokha,Kim Youngwon,Park Sun-Kyung,Ji Sang-Hwan,Kim Jin-Tae 대한마취통증의학회 2020 Anesthesia and pain medicine Vol.15 No.4

Ultrasonography can be useful to perform a lumbar neuraxial block. It aids in understanding the anatomy of the lumbar spine before the procedure. Pre-procedural ultrasound imaging provides information about the accurate intervertebral level for puncture, optimal needle insertion point, and depth of needle advancement for a successful neuraxial block. The key ultrasonographic views for lumbar neuraxial block include the transverse midline interlaminar and parasagittal oblique views. Ultrasonography can facilitate lumbar neuraxial block in difficult cases, such as the elderly, obese patients, and patients with anatomical abnormality of the lumbar spine. This review elucidates the basics of spinal ultrasonography for lumbar neuraxial block and the current evidence regarding ultrasound-guided neuraxial block in adults.

Letter to the Editor : Mutational Analysis of MITOSTATIN, a Candidate Tumor-Suppressor Gene, at a Mononucleotide Repeat in Gastric and Colorectal Carcinoma

( Yoo Ri Kim ),( Sung Soo Kim ),( Nam Jin Yoo ),( Sug Hyung Lee ) The Editorial Office of Gut and Liver 2010 Gut and Liver Vol.4 No.1

Influence of additional etching on shear bond strength of self-etching adhesive system to enamel

Yoo, Sun-Jin,Kim, Young-Kyung,Park, Jeong-Won,Jin, Myoung-Uk,Kim, Sung-Kyo 大韓齒科保存學會 2006 Restorative Dentistry & Endodontics Vol.31 No.4

최근 많이 소개되고 있는 자가산부식 접착제는 상아질에 대한 접착은 우수한 것으로 알려져 있지만 법랑질에 대한 접착은 인산에 비해 낮은 산도로 인해 충분한 부식이 일어나는지에 대한 논란이 되고 있다. 본 연구에서는 서로 다른 산도를 가진 1단계 혹은 2단계의 자가산부식 접착제에서 부가적인 산부식이 법랑질과 복합 레진 사이의 전단결합강도에 미치는 영향을 평가하고자 하였다. 90개의 발거된 우치의 순면을 물기가 있는 상태에서 #600 사포로 표면을 연마하여 평활한 법랑질을 노출시킨 후, 임의로 6군으로 분류했다. 사용재료는 Clearfil SE Bond^(®), Adper^(TM)Prompt L-Pop, 그리고 Tyrian SPE^(TM)를 사용하였으며, 각 재료에 추가적인 산부식을 시행한 군과 그렇지 않은 군으로 나누어 표현 처리한 후, 제조사의 지시대로 접착과정을 시행하였다. 각 시편에 복합레진을 2 ㎜ 두께로 충전하고, 40초간 광중합을 하였다. 그 후 시편을 37℃, 100% 상대습도에서 24시간 보관 후 전단응력 접착강도를 측정하였다. 결과치는 independent t - test 를 이용하여 통계분석 하였으며 그 결과는 다음과 같이 나타났다. Clearfil SE Bond^(®)에서 부가적인 산부식을 시행한 군이 그렇지 않은 군보다 유의하게 높은 접착강도를 나타내었다 (p < 0.01). Adper^(TM) Prompt L-Pop과 Tyrian SPE^(TM)에서는 부가적인 산 부식이 결합강도에 통계적인 유의차를 나타내지 않았다.(p >0.01). 본 연구의 결과로 보아, 강산을 함유하고 있는 접착제를 사용할 경우에는 부가적인 부식 처치가 접착력을 증가시키지 않으나, 약산을 함유하고 있는 접착제의 경우에는 부가적인 산부식이 접착력을 증진시키는 것으로 사료된다. Recently, self-etching adhesive system has been introduced to simplify the clinical bonding procedures. It is less acidic compared to the phosphoric acid, thus there is doubt whether this system has enough bond strength to enamel. The purpose of this study was to investigate the influence of additional etching on the adhesion of resn composite to enamel. Ninety extracted bovine permanent anterior teeth were used. The labial surfaces of the crown were ground with 600-grit abrasive paper under wet condition. The teeth were randomly divided into six groups of 15 teeth each. Clearfil SE Bond^(®), Adper^(TM) Prompt L-Pop and Tyrian SPE^(TM) were used as self-etaching primers. Each self-etching primers were applied in both enamel specimens with and without additional etching. For additional etching groups, enamel surface was pretreated with 32% phosphoric acid (UNI-ETCH, Bisco, Inc., Schaumburg, IL, USA). Hybrid resin composite Clearfil APX, (Kuraray Co., Ltd., Osaka, Japan) was packed into the mold and light-cured for 40 seconds. Twenty-four hours afer storage, the specimens were tested in shear bond strength. The data for each group were subjected to independnt t - test at p < 0.01 to make comparisons among the groups. In Clearfil SE Bond^(®), shear bond strength of additional etching grop was higher than no additional etching group (p < 0.01). In Adper^(TM) Prompt L-Pop and Tyrian SPE, there were no significant difference between additional etching and non-etching groups (p < 0.01). In conclusion, self-etching adhesive system with weak acid seems to have higher bond strength to enamel with additional etching, while self-etching adhensive system with strong acid seems not.〔 Kor Acad Cons Dent 31(4):263-268, 2006〕

Laparoscopic Cyst Excision and Left Hernihepatectorny for a Type IVa Choledochal Cyst

Sang-Hyun Shin,Ho-Seong Han,Yoo-Seok Yoon,Kwang-Sik Chun,Jin-Young Jang,Sun-Whe Kim,Yong-Hyun Park 대한외과학회 2006 대한외과학회 학술대회 초록집 Vol.2006 No.11

Quality change during preservation of cultivation mushrooms, Flammulina velutipes and Agaricus bisporus

Jin-A Oh,Jong-Chun Cheong,Chan-Jung Lee,Chang-Sung Jhune,Young-Bok Yoo 한국버섯학회 2010 한국버섯학회 국제학술대회 Vol.6 No.-

Dimension reduction for right-censored survival regression: transformation approach

Yoo, Jae Keun,Kim, Sung-Jin,Seo, Bi-Seul,Shin, Hyejung,Sim, Su-Ah The Korean Statistical Society 2016 Communications for statistical applications and me Vol.23 No.3

High-dimensional survival data with large numbers of predictors has become more common. The analysis of such data can be facilitated if the dimensions of predictors are adequately reduced. Recent studies show that a method called sliced inverse regression (SIR) is an effective dimension reduction tool in high-dimensional survival regression. However, it faces incapability in implementation due to a double categorization procedure. This problem can be overcome in the right-censoring type by transforming the observed survival time and censoring status into a single variable. This provides more flexibility in the categorization, so the applicability of SIR can be enhanced. Numerical studies show that the proposed transforming approach is equally good to (or even better) than the usual SIR application in both balanced and highly-unbalanced censoring status. The real data example also confirms its practical usefulness, so the proposed approach should be an effective and valuable addition to usual statistical practitioners.

Poster Session : Cancer Biology ; Cleaved form of p23 by caspase regulates telomerase activity through the regulation of Hsp90 phosphorylation

( Sang Hyeok Woo ),( Sung Kwan An ),( Hyeon Ok Jin ),( Hyung Chahn Lee ),( Sung Keum Seo ),( Doo Hyun Yoo ),( Su Jae Lee ),( Seok Il Hong ),( Chang Hun Rhee ),( In Chul Park ) 한국생화학분자생물학회 (구 한국생화학회) 2007 생화학분자생물학회 춘계학술발표논문집 Vol.2007 No.-

Improved Isolation of Outer Root Sheath Cells from Human Hair Follicles and Their Proliferation Behavior under Serum-free Condition

Yoo, Bo-Young,Shin, Youn-Ho,Yoon, Hee-Hoon,Kim, Young-Jin,Song, Kye-Yong,Hwang, Sung-Joo,Park, Jung-Keug Korean Society for Biotechnology and Bioengineerin 2007 Biotechnology and Bioprocess Engineering Vol.12 No.1

Hair follicle is a small but very complex and dynamic miniorgan of the human body. It is easy to isolate and culture mesenchymal cells but not epithelial cells of hair follicle. It is necessary for intact and healthy outer root sheath (ORS) cells to be isolated and cultured. In this study we developed an appropriate isolation method to yield $6.4{\pm}0.75{\times}10^4$ cells/hair follicle, which is about 9-fold comparing to our previous data. This yield was achieved by modifications such as different kinds of enzyme uses, fragmentation, and mechanical stimuli. Especially we detected that the different kinds of isolation enzyme could affect proliferation of ORS cells during primary culture. In addition, bovine pituitary extract (BPE) was needed for ORS cells to proliferate and to form colonies under serum-free, feeder layer-free culture condition, but type I collagen as a substratum did not have any positive effect. Moreover, ORS cells under BPE-added condition contained stem/progenitor cells expressing ${\beta}$1-integrin, CK19, and CD34. These results can provide useful cell culture information, not only in the study of hair biology but also in the field of tissue engineering and cell therapy for the treatment of alopecia.