라섹 후 하이드로겔 및 실리콘하이드로겔 치료용 렌즈 착용 시의 임상 경과 차이

장승원,정의상,정태영,Seung Won Jang,Eui Sang Chung,Tae Young Chung 대한안과학회 2007 대한안과학회지 Vol.48 No.10

Purpose: To compare the effectiveness between wearing a conventional hydrogel vifilcon A bandage contact lens (BCL) and a silicone hydrogel lotrafilcon A BCL after laser-assisted subepithelial keratomileusis (LASEK). Methods: LASEK was performed on 38 eyes of 19 patients. Each patient was fitted with a silicone hydrogel lotrafilcon A lens in one eye and a conventional hydrogel vifilcon A lens in the other eye. The patient was masked on the type of lens in each eye. General preference between the two types of lenses, subjective symptoms (pain, photophobia, tearing, dryness, and foreign body sensation; graded as 0 to 4), and the area of non-viable corneal epithelium were assessed in each eye at one and four days after surgery. Results: Patients reported preferring the lotrafilcon A lens to vifilcon A at 1 (79%) and 4 (74%) days after LASEK. The mean symptom scores of tearing and foreign body sensation at 1 day after surgery (P=0.012 and P=0.034, respectively) and foreign body sensation at 4 days after surgery (P=0.027) were significantly lower in the lotrafilcon A group. The mean area of the non-viable corneal epithelium was smaller in the lotrafilcon A lens group at 1 day and 4 days after surgery, although not statistically significant. Conclusions: Patients better tolerated the silicone hydrogel lotrafilcon A BCL compared with the conventional hydrogel vifilcon A BCL. The mean symptom scores were significantly lower in the lotrafilcon A group at both 1 and 4 days after LASEK.

구강건조증 환자에서 음허 측정 설문지 절단점 개발 및 진단능 평가

장승원,김진성,Jang, Seung-Won,Kim, Jin-Sung 대한한방내과학회 2014 大韓韓方內科學會誌 Vol.35 No.4

Objectives: The aims of study were developing cut-off value of Yin-deficiency questionnaire (YDQ) for diagnosis of Yin-deficiency (YD) and compare diagnostic ability between YDQ and Yin-deficiency scale score (YDS) in xerostomia patients. Methods: We recruited 58 xerostomia patients. They were diagnosed YD or non-YD by 3 Korean medicine doctors (KMD). We assessed YD using YDQ and YDS. We evaluated xerostomia using VAS, Dry Mouth Symptom Questionnaire (DMSQ), Salivary Flow Rate (SFR), oral moisture on buccal mucosa and tongue surface (OMB and OMT). We surveyed tongue coatings using Winkel Tongue Coating Index (WTCI). Results: We diagnosed 23 patients YD and 35 patients non-YD. There were no significant differences of age, sex and body mass index between the YD and non-YD groups. Using receiver operating characteristic curve analysis, the optimal cut-off value of YDQ was defined as 304. Sensitivity, specificity and Youden index of YDQ were 86.96%, 71.43% and 1.5839 respectively. Using Cohen's coefficient of agreement, we found that degree of agreement between KMD and YDQ diagnosis was moderate (${\kappa}$=0.524, p<0.001). Using Pearson's correlation analysis, we found concurrent validity of YDQ and YDS were significant correlated. Using area under curve value, we found diagnostic ability between YDQ and YDS were not significantly different (p=0.505), but there were more strong correlations between DMSQ-symptoms and YDQ (r=0.731, p<0.001) than correlations between DMSQ-symptoms and YDS (r=0.418, p<0.01). Conclusions: The cut-off value of YDQ can diagnose YD in xerostomia and diagnostic ability of YDQ in xerostomia is better than YDS.

진성구취 및 가성구취 환자군의 심리적 특성차이에 대한 연구

장승원,김진성,강경,김주연,손지영,백승환,최제인,류봉하,Jang, Seung-Won,Kim, Jin-Sung,Kang, Kyung,Kim, Ju-Yeon,Son, Ji-Yeong,Baek, Seung-Hwan,Choi, Jane,Ryu, Bong-Ha 대한한방내과학회 2013 大韓韓方內科學會誌 Vol.34 No.4

Objectives : This study was designed to investigate the difference between genuine and pseudo halitosis about qi stagnation and stress. Methods : We recruited 63 halitosis patients who visited the halitosis clinic in the Kyung Hee University Korean Medicine Hospital from June 2012 to August 2013. We classified the halitosis patients into two groups, genuine and pseudo halitosis based on organoleptic assesment (OLT) score and evaluated the severity of self-reported halitosis using visual analog scale (VAS), amount of sulfide compounds using Halimeter, qi stagnation level using qi stagnation questionnaire and stress levels using heart rate variability (HRV) parameters. Results : Comparing the genuine halitosis group and the pseudo halitosis group, there was no significant difference in VAS of halitosis but significant difference in halimeter score. Distribution of qi stagnation and non-qi stagnation groups was significantly different between genuine and pseudo halitosis. Compared to the genuine halitosis group, the pseudo halitosis group showed a significant higher value of low frequency/high frequency ratio (LF/HF ratio). Conclusions : The result of this study suggest that there is significant difference about qi stagnation and stress level between genuine halitosis and pseudo halitosis patients, so when approaching pseudo halitosis patients, we should consider their psychological and emotional status.

월드컵의 열기만큼 뜨거운 카타르의 건설열기

장승원,Jang, Seung-Won 한국건설관리학회 2014 건설관리 : 한국건설관리학회 학회지 Vol.15 No.4

안와감압술 후 발생한 내파열 동(Imploding antrum, silent sinus) 증후군 1예

장승원,오동은,김윤덕,Seung Won Jang,Dong Eun Oh,Yoon Duck Kim 대한안과학회 2008 대한안과학회지 Vol.49 No.2

생활체육 참가노인의 관여도와 운동지속의사의 관계

장승원(Jang Seung-Won),이동준(Lee Dong-Jun) 한국체육과학회 2008 한국체육과학회지 Vol.17 No.2

The purpose of this study is to define the relationship between the involvement and the continue intention of exercise in old person participating in the public physical exercise. The population of study was old person women and men participating in Dance Sports. The objective of study were 462 old person participating in Dance Sports curriculum in the welfare centers and colleges for old person and self-administrations at town center located in Seoul and Kyeong-gi do in 2007. This study analysed the 462 samples with SPSS 14.0 version program and deduced a conclusions as the following; First, The involvement had difference attended depends on the characteristics of society population. For example, 60 to 65 years old group is higher in the characteristic of the enjoyment pursuit than over 75 years old group. Second, the characteristics of society population and the continue intention of exercise had difference attended depends on age. For example, 60 to 65 years old group is higher in the characteristic relating the continue intention of exercise than another group over 75 years old. Third, the involvement has an influence on the continue intention of exercise. For example, the characteristics of the enjoyment pursuit and self expression influence on the possibility of the continue intention of exercise.

스포츠센터 관리자의 리더십유형과 직무만족 및 조직몰입의 구조적 관계

장승원(Jang Seung-Won) 한국체육과학회 2009 한국체육과학회지 Vol.18 No.2

This research has purpose on searching structural connection among leadership style, job satisfaction, and organizational commitment of sports center managers. the objects for the research are employees of sports centers in Seoul of 282 questionnaires by convenience sampling is used as final research materials. the results by using frequency analysis, exploratory factor analysis, reliability analysis, confirmatory factor analysis, correlation analysis, structure equation analysis with SPSS 14.0 and AMOS 7.0 are as follow; First, the transactional leadership has influence on the job satisfaction. Second, the transformational leadership has influence on the job satisfaction. Third, the transactional leadership has not influence on the organizational commitment. Fourth, the transformational leadership has influence on the organizational commitment. Fifth, job satisfaction has influence on the organizational commitment.

극한성 미생물Deinococcus geothermalis 유래 재조합 글루코아밀레이즈의 전분 분해 활성 특징

장승원(Seung-Won Jang),권덕호(Deok-Ho Kwon),박재범(Jae-Bum Park),정종현(Jong-Hyun Jung),하석진(Suk-Jin Ha) 강원대학교 산업기술연구소 2019 産業技術硏究 Vol.39 No.1

This work focused on characterization of the starch degradation activity from extremophile strain Deinococcus geothermalis. Glucoamylase gene from D. geothermalis was cloned and overexpressed by pET-21a vector using E. coli BL21 (DE3). In order to characterize starch degrading activity of recombinant glucoamylase, enzyme was purified using HisPur Ni-NTA column. The recombinant glucoamylase from D. geothermalis exhibited the optimum temperature as 45°C for starch degradation activity. And highly acido-stable starch degrading activity was shown at pH 2. For further optimization of starch degrading activity with metal ion, various metal ions (AgCl 2 , HgCl 2 , MnSO 4⦁ 4H 2 O, CoCl 2⦁ 6H 2 O, MgSO 4 , ZnSO 4⦁ 7H 2 O, K 2 SO 4 , FeCl 2⦁ 4H 2 O, NaCl, or CuSO 4 ) were added for enzyme reaction. As results, it was found that FeCl 2⦁ 4H 2 O or MnSO 4⦁ 4H 2 O addition resulted in 17% and 9% improved starch degrading activity, respectively. The recombinant glucoamylase from D. geothermalis might be used for simultaneous saccharification and fermentation (SSF) process at high acidic conditions.

경마베팅 참가자의 도박동기와 비합리적 도박신념 및 도박중독의 관계

장승원(Jang Seung-Won) 한국체육과학회 2010 한국체육과학회지 Vol.19 No.2

This purpose of this study is to examine into the gambling motives, irrational gambling belief, and gambling addiction of horse racing betting participants. to this end, after setting of horse racing betting participants to population, it used 283 copies as the finally research materials by utilizing the convenience sampling. the statistical techniques, which were used for the analysis of this study, included frequency analysis, exploratory factor analysis, reliability analysis, correlation analysis and multiple regression analysis, by using SPSS 17.0. through these procedures, the following conclusions were elicited. First, the gambling motives had on effect on the irrational gambling belief. Second, the gambling motives had on effect on the gambling addiction. Third, the irrational gambling belief had on effect on the gambling addiction.

수영 참가자의 내적동기, 외적동기, 운동몰입 및 여가만족의 구조모형 검증

장승원(Jang, Seung-Won) 한국체육과학회 2011 한국체육과학회지 Vol.20 No.6

The research has purpose on searching structural connection among intrinsic motivation, extrinsic motivation, exercise commitment and leisure satisfaction of swimming participants. the objects for the research are swimming participants in sports center samples of 433 questionnaires by simple random sampling is used as final research materials. The results by using frequency analysis, exploratory factor analysis, reliability analysis, correlation analysis, structure equation analysis with SPSS 17.0 and AMOS 7.0 are as follow; First, The intrinsic motivation influences exercise commitment. Second, The extrinsic motivation influences exercise commitment. Third, The exercise commitment influences leisure Satisfaction.