연령에 따른 한국인 손 피부색 차이 분석

홍다검ㆍ이희경ㆍ이정현(Da Geom HongㆍHee kyung LeeㆍJeong Hyun Lee) 한국인체미용예술학회 2016 한국인체미용예술학회지 Vol.17 No.1

Recently, nail industry trends have been shifting from polish nail to gel nail. Because of the popularity of gel nail, the criteria for customers to choose colors have significantly changed. Therefore, there has been a rising demand for a nail color which goes well with skin color, not with the color of clothes, makes the hand more beautiful. Unlike a face, hand skin color isn’t corrected through makeup. Therefore, it is more difficult to find a color which is well matched with the skin tone. In this sense, the accurate analysis and classification of hand skin color which is the first step in the selection of nail color are required. However, it’s still very hard to find studies on hand skin color. To figure out the characteristics of Koreans’ hand skin color by age, this study analyzed differences in hand skin color by age after measuring the tone of the back of the hand and conducting quantitative analysis against 300 women living in Busan, Ulsan and Gyeongnam. The results revealed statistically significant difference (p.001). As the respondents were younger, a bright skin tone was observed. According to analysis on the distribution by the rank, ‘20s’ was the highest with 46% among those with a bright skin tone within top 100 ranks. In top 300 ranks, in contrast, ‘50s’ was the highest with 46% while ‘20s (8%)’ was the lowest. In terms of a skin tone, there was a considerable difference between ‘20s’ and ‘50s.’ Even though no big difference was found between ‘30s’ and ‘40s,’ a skin tone was brighter in the latter.

동위효소 분석에 의한 느타리속의 종간 유연관계

이희경,유영복,차동열,민경희 ( Hee Kyung Lee,Young Bok Yoo,Dong Yeul Cha,Kyung Hee Min ) 한국균학회 1998 韓國菌學會誌 Vol.26 No.2

여성치과기공사의 직업의식에 관한 연구

이희경,김정숙,정효경,Lee, Hee-Kyung,Kim, Jeong-Sook,Jung, Hyo-Kyung 대한치과기공학회 2010 대한치과기공학회지 Vol.32 No.3

Purpose: This study was conducted to corroborate factors affecting dental technicians recognition states of their job consciousness. Methods: Self-administering questionnaires were distributed directly to some 200 registered female dental technicians in metropolis, small & medium-sized cities, farming and fishing villages of whom 153(76.5%) female dental technicians and female students responded in December, 2009. Information on recognition states of female dental technicians and female students in department of dental technology possible occupational mind and other general characteristics was gathered. Analysis of data was processed by use of X2-test and multiple regression analysis. Results: The recognition states of occupational satisfaction were higher in female students than female dental technicians(p<.05). They were observed that between respondents with more than five years of work and less than five years of career(p<.05). Statistically significant differences were observed in recognition values of female dental technicians occupational satisfaction between high and low groups of internal characteristic of their position and all ceramic part(p<.05). Conclusion: For woman dental technicians, the most predictive variables for recognition values of occupational satisfaction were an age, between groups, which of part and career(p<.05). Finally, this result suggests the facts that in order to achieve self-realization through the work experience, women herself should get rid of the dichotomous diagram and should change the consciousness of traditional role normals.

Computerized Sperm Motility Analyzer를 이용한 Human Sperm의 Hyperactivated Motility의 객관적 관찰에 관한 연구

이희경,이찬,김현숙,김영태,김선행,구병삼,Lee, Hee-Kyung,Lee, Chan,Kim, Hyun-Sook,Kim, Young-Tae,Kim, Sun-Haeng,Ku, Pyoung-Sahm 대한생식의학회 1994 Clinical and Experimental Reproductive Medicine Vol.21 No.1

The occurrence and time course of capacitation, acrosomal loss, and hyperactivated motility require quantitative definition in order to characterize fertile human sperm. Recently the method has been developed to estimate the quality of spermatozoa by using kinematic parameters such as curvilinear velocity(VCL), average path velocity(VAP), linearity(LIN), straightness(STR), amplitude of lateral head displacement(ALH), and beat cross frequence(BCF) from Computer Assisted Sperm Analysis (CASA). In this study, using the Hamilton Thorn motility analyzer HTM 2030(Hamilton Thorn Research, Beverly, MA), we attempted to identify the spermatozoa with hyperactivated motility (HA) objectively and to monitor hyperactivation of human spermatozoa during incubation in capacitating media and after treatment of calcium ionophore as compared with acrosome status. And we examined whether HA are related to the result of SPA. Semen samples obtained from 16 healthy men were prepared by swim up technique and preincubated in a capacitating media(modified BWW medium) for 5 hours and treated with calcium ionophore solution. The acrosome reaction was detected with PSA-FITC labelling of the acrosome and in vitro sperm ferilizing capacity was assessed by the zona free hamster ovum penetration assay (SPA). The incidence of hyperactivated sperm was 2.6% in fresh semen, 14.3% of the swim up population, 13.7% after 5h of incubation. Significant increase of percentage of hyperactivated sperm was observed after the incubation (p<0.05) but after treatment, no significant changes of percentage of hyperactivated sperm(l1.8%) in contrast to significant rise in the percentage of acrosome reacted cells. Correlation analysis failed to show any significant relationship between the percentage of sperm with HA and SPA score. In conclusion, although no direct correlations were found between the results of SPA and HA, hyperactivation of sperm is associated with capacitation and monitoring hyperactivated sperm will be expected as a method of evaluating the functional quality of sperm such as SPA.

치과기공사의 스트레스 연구

이희경,Lee, Hee-Kyung 대한치과기공학회 1994 대한치과기공학회지 Vol.16 No.1

This study attempted to find out how much stress Dental Technicians of working in Dental Laboratory have built up in the midst of their daily lives are according to their sex, age, duration of work and their kinds of positions. After self-administered questionnaire were distributed by direct to 230 technicians samplely selected from dental laboratories in Seoul and Pusan of whom 163 technicians responded from october 1 through october 13, 1994. Analysis of the data was processed by t-test, $X^2$-test, ANOVA. This results are as follows. 1. Levels of Stress of the total 163 respondents by sex is not higher among male than female(p>.05). 2. Levels of stress - 36.2%(74 Dental technicians) of all Dental technicians were in stress on the whole and 9.2%(15 Dental technicians) of them were in a serious situation by accumulated stress. 3. Realization of stress - 10.1%(16 Dental technicians) of the dental technicians and 89.9%(143 Dental technicians) were found out to be in a dangerous sign or in a situation by accumulated stress. Further studies which a big size and a delicate method of measuring their general characteristics are needed.

증숙 더덕 에탄올 추출물에 대한 항산화·항균 활성

이희경,최온유,최두복,최현숙,Lee, Hee-Kyung,Choi, On-Yu,Choi, Du-Bok,Choi, Hyun-Suk 한국식품영양학회 2021 韓國食品營養學會誌 Vol.34 No.1

This study was investigated the contents of total polyphenol, flavonoids and antioxidant and antimicrobial activities of Codonopsis lanceolata extracts according to different steaming times. The contents of total polyphenol and flavonoid proportionally increased from 6.45 mgGAE/g to 18.26 mgGAE/g and 2.01 mgRE/g to 6.12 mgRE/g according to ethanol extracts at EDS7. DPPH radical scavenging activity was found to have been 15.26~65.2% and showed the highest level of antioxidant activity at EDS7 was 65.2%. The activity of ABTS radical scavenging and SOD-like activity were also the same result. DPPH and ABTS radical scavenging activity was related to the number of steaming, and the scavenging activity was increased up to 7 times of steaming. The antimicrobial activity of EDS7 had strong antioxidant activity. Antimicrobial activities were examined against 5 microorganisms related to pathogens and food poisoning. The antimicrobial Activity was different depending on the bacteria, but it was effective at the concentration of 300 mg/mL rather than 150 mg/mL. These results showed that Codonopsis lanceolata extracts with a different number of steaming would be conducted to confirm the possibility of developing antimicrobial and antioxidant. It will be helpful in the study of component analysis of Codonopsis lanceolata extracts processed products.

< Tc-99m > TRODAT-1과 < I-123 > IST SPECT를 이용한 도파민 운반체의 영상화 및 정량분석 비교

이희경(Hee Kyung Lee),김희중(Hee Joung Kim),봉정균(Jung Kyun Bong) 대한핵의학회 1998 핵의학 분자영상 Vol.32 No.1

N/A The SPECT radiopharmaceuticals labeled with I-123 for dopamine transporter imaging have been used to measure dopamine transporters in patients with movement disorders. However, a cyclotron produced I-123 limits its availiability and ease of use as a radioisotope to be labeled with pharmaceuticals in routine clinical diagnostic procedures. Recently, new radiopharmaceuticals for Tc-99m which has optimal characteristic for SPECT imaging have been developed to overcome the limits of using I-123. The purpose of this study was to compare the quality of [Tc-99m]TRODAT-1 with [I-123]IPT SPECT data and then to evaluate the usefulness of [Tc-99m]TRODAT-I SPECT by using three noninvasive simplified quantitative methods. TRODAT-1 labeled with Tc-99m(15.93±0.82 mCi) and IPT labeled with I-123(6.60±0.11 mCi) were injected into five normal controls. Dynamic [Tc-99m] TRODAT-I SPECT scans of brain were performed for 10 minutes each over 180 minnutes, and for 20 minutes at 4 hrs and 5 hrs. [I-123IPT SPECT scans were performed for 5 minutes each over 120 minutes. Time activity curves were generated for the left basal ganglia(LBG), right basal ganglia(RBG), and occipital cortex(OCC). Dopamine transporter parameters were obtained using (BG-OCC)/OCC, graphical method(Rv), and area ratio method(RA). TRODAT-1 and IPT SPECT imaging showed high uptake at the level of the basal ganglia. (BG-OCC)/OCC ratios for TRODAT-1 and IPT were 0.80±0.14, and 3.22±0.81, Rvs were 0.62±0.12, and 2.30±0.35, and RAs were 0.37±0.08 and 1.73±0.31, respectively. In conclusion, further improvement of [Tc-99m]TRODAT-I imaging characteris- tics may be required to estimate the dopamine transporter concentrations in human brains although it shows clear BG localization.

한국 현대음악의 현장에 관한 사례 연구 -서울시향 "진은숙의 아르스 노바" 시리즈를 중심으로

이희경 ( Hee Kyung Lee ) 한국음악학학회 2011 음악학 Vol.19 No.2

한국 음악학계에는 실제 음악 현장에서 벌어지는 활동이나 현상에 대한 관심과 연구가 별로 없다. 서양 음악 도입 이후 한국에 정착된 근대적인 음악 제도들에 대한 연구도 턱없이 부족한 실정이지만, 그 연구들이 반드시 출발점부터 시작되어야만 하는 것이 아니라면, 현재의 모습에서 과거와의 연관, 미래의 변화를 유추하는 것도 충분히 의미 있는 일이다. ``음악회``는 음악적 행위가 수행되는 대표적인 현장의 하나이며, 그에 대한 연구는 한국 음악문화의 현재를 읽어내는 흥미로운 텍스트가 될 수 있다. 2006년 4월부터 현재까지 6년간 총 23회에 걸쳐 서울시향 상임작곡가 진은숙에 의해 진행된 현대음악 연주회 시리즈는 여러 면에서 주목할 만하다. 무엇보다 프로그램의 주제나 구성, 연주 면에서 뛰어난 완성도를 보이며, 마스터클래스를 비롯한 여러 교육 방식을 통해 신예 작곡가를 길러낼 수 있는 토양을 만들어갈 뿐 아니라, 청중과 소통하기 위한 다양한 장치들을 마련함으로써, 한국 현대음악의 지형을 변화시키고 그 저변을 확대한다는 점에서 그러하다. 이 논문은 한국 음악문화에 대한 현장 연구의 하나로서, 서울시향 "진은숙의 아르스 노바" 음악회 시리즈가 지난 6년간 이뤄온 성과를 정리해내고 그 의미를 해석하면서, 음악계에서 벌어지는 활동에 대한 비평적 연구의 필요성을 생각해보려 한다. The Seoul Philharmonic Orchestra, the oldest and most famous orchestra of Korea, adopted the composer-in-residence system for the first time in Korea when it was re-launched as an incorporated foundation in 2005. Unsuk Chin, as its first composer-in-residence, has directed the contemporary music concert series, titled "Ars Nova," since 2006. The concert programs encompass various topics every season, such as "Early & New," "Different Beethoven," "Viola, viola," "Couleurs exotiques," "America," "East and West," "Fairytails." She also gave regular master classes for young composers, organizing workshops, lectures and additional artistic activities such as an installation "Beethoven`s room," the performance of the ensemble ``Stringraphy,`` and the presentation of Hugo Verlinde`s digital art. During the past six years, this concert series extended the classic music repertoires in Korea to the diverse trends of the twentieth and twenty-first century music, offering well-organized and innovative programs to Korean audience. More importantly, it contributed to inspire composers in their creations, and to raise the musical competence of the Seoul Philharmonic Orchestra, which finds its own way into the world standard orchestra. As a case study for the current Korean music culture, this essay traces and assesses the significance of the "Ars Nova," hoping to encourage further critical reviews and discussions about the future development of Korean contemporary music.

당뇨병 환자의 구강 상태 및 구강건강증진방안

이희경(Hee-Kyung Lee),박은영(Eun-Young Park),이성국(Sung-Kook Lee) 한국보건교육건강증진학회 2007 보건교육건강증진학회지 Vol.24 No.4

치과주조용 Au-Zn-Pt 합금의 열처리와 상변태

이희경(Hee-Kyung Lee),정충보(Choong-Bo Jung),백창준(Chang-Jun Baek),이경희(Kyung-Hee Lee),김형일(Hyung-Il Kim),久恒邦博(Kunihiro Hisatsune) 대한치과재료학회 2000 대한치과재료학회지 Vol.27 No.3