The Moderating Role of Locus of Control on the Links between Experiential Motives and Online Game Loyalty

Dong‐,Mo Koo 한국산업경영학회 2008 한국산업경영학회 발표논문집 Vol.2008 No.4

Online games represent a burgeoning market sector with growth potential. The distinctive entertainment‐oriented features of such games provide various experiential motives for users. However, most previous studies have focused on the single dimensional affective motive of online game use. The multi‐dimensional affective motivational aspects of entertainment technologies have been relatively neglected. In addition, previous studies report inconsistent relationships between motives and online game usage. To fill these gaps in the literature, the present study proposes five experiential motives such as concentration, perceived enjoyment, escape, epistemic curiosity, and social affiliation as predictors of intention to play online games. Internal locus of control is also introduced as a moderator in the links between experiential motives and intention. The model is tested with the data from 576 current online game players and the data were gathered from online survey methodology. Structural equation model analysis confirms that three experiential motives with the exception of concentration and epistemic curiosity have a positive effect on intention. In addition, Chi square difference test confirms that internal locus of control has a moderating effect between the links from experiential values such as concentration, perceived enjoyment, and escape to intention. Implications are discussed in conclusion.

제29회 베이징 올림픽 탁구남자개인단식 금메달리스트의 대상별 탁구경기전술분석

이동헌(Lee Dong-Heun),정구인(Jung Koo-In),송창훈(Song Chang-Hoon) 한국체육과학회 2010 한국체육과학회지 Vol.19 No.3

This is an analysis of Lee Dong-heun's table tennis tactics(2010) in the 29th Bejing Olympics focusing primarily on Marin's performance in the finals. I searched for Vod materials on the OK ping-pong website, and TV broadcasting materials to obtain the analysis. After analyzing the 3 games of Marin point by point, I came to the following conclusion. First of all, Marin could win the games with his own tactical patterns. On the other hand, Wang Hao and Wang Richin of China also won the games with their own tactical patterns, but they lost the games without their own tactical patterns. Second, Wang Hao(China), Wang Richin(China) and Oh Sang Eun(South Korea) should have increased the frequency of their main scoring tactics and raised their scoring success rate. In other words, Marin(China) had a higher scoring success rate than the others. However, it is natural that Marin(China)'s table tennis tactics were able to block Wang Hao, Wang Richin and Oh Sang Eun's.

니세틸 정(아세틸-엘-카르니틴 500 mg)에 대한 뉴로세틸 정의 생물학적 동등성

조혜영,김은아,정현철,심영순,임동구,오인준,문재동,이용복 전남대학교 약품개발연구소 2001 약품개발연구지 Vol.10 No.-

Acetyl-L-carnitine (ALC), an endogenous component of the L-carnitine family, is naturally occurring molecule synthesized from L-carnitine (LC) by carnitine acetyl transferase. ALC has been shown to improve the cognitive performance of patients suffering from dementia of the Alzheimer's type and proposed for treating Alzheimer's disease in pharmacological doses. The purpose of the present study was to evaluate the bioequivalence of two ALC tablets, Nicetiler^TM (Dong-A pharmaceutical Co., Ltd.) and Neurocetil^TM (Kyung-Dong Pharmaceutical Co., Ltd.), according to the guidelines of Korea Food and Drug Administration. Twenty six normal male volunteers, 22.80±2.76 year in age and 63.07 7.98㎏ in body weight, were divided into two groups and a randomized 2×2 cross-over study was employed. After one tablet containing 500㎎ of ALC was orally administered, blood was taken at predetermined time intervals and the concentrations of ALC in serum were determined using HPLC with fluorescence detector. Because of the presence of endogenous ALC, the calibration was performed using dialyzed serum. Pharmacokinetic parameters such as AUC_t, C_max and T_max were calculated and ANOVA was utilized for the statistical analysis of the parameters. The results showed that the differences in AUC_t, C_max and T_max between two tablets were 2.72%, -0.65% and -8.42%, respectively, when calculated against the Nicetile^TM tablet. The powers (1-β) for AUC_t and C_max were 94.87% and 87.17%, respectively. Minimum detectable differences (Δ) at α=0.05 and 1-β=0.8 were less than 20% (e.g., 15.58% and 19.16% AUC_t and C_max, respectively). The 90% confidence intervals were within ±20% (e.g., -11.84∼6.41 and -10.57∼11.88 for AUC_t and C_max, respectively). Two parameters met the criteria of KFDA for bioequivalence, indicating that Neurocetil^TM tablet is bioequivalent to Nicetile^TM tablet.

니세틸 정(아세틸 - 엘 - 카르니틴 500mg)에 대한 뉴로세틸 정의 생물학적 동등성

조혜영,오인준,이용복,임동구,문재동,심영순,김은아,정현철 한국약제학회 2001 Journal of Pharmaceutical Investigation Vol.31 No.1

Acetyl-L-carnitine (ALC), an endogenous component of the L-carnitine family, is naturally occurring molecule synthesized from L-carnitine (LC) by carnitine acetyl transferase. ALC has been shown to improve the cognitive performance of patients suffering from dementia of the Alzheimer's type and proposed for treating Alzheimer's disease in pharmacological doses. The purpose of the present study was to evaluate the bioequivalence of two ALC tablets, Nicetile^(TM) (Dong-A pharmaceutical Co., Ltd.) and Neurocetil^(TM) (Kyung-Dong Pharmaceutical Co., Ltd.), according to the guidelines of Korea Food and Drug Administration. Twenty six normal male volunteers, 22.80±2.76 year in age and 63.07±7.98 ㎏ in body weight, were divided into two groups and a randomized 2 × 2 cross-over study was employed. After one tablet containing 500 ㎎ of ALC was orally administered, blood was taken at predetermined time intervals and the concentrations of ALC in serum were determined using HPLC with fluorescence detector. Because of the presence of endogenous ALC, the calibration was performed using dialyzed serum. Pharmacokinetic parameters such as AUC_t, C_(max) and T_(max) were calculated and ANOVA was utilized for the statistical analysis of the parameters. The results showed that the differences in AUC_t, C_(max) and T_(max) between two tablets were 2.72%, -0.65% and -8.42%, respectively, when calculated against the Nicetile^(TM) tablet. The powers (1-β) for AUC_t and C_(max) were 94.87% and 87.17%, respectively. Minimum detectable differences (△) at α=0.05 and 1-β=0.8 were less than 20% (e.g., 15.58% and 19.16% AUC_t and C_(max), respectively). The 90% confidence intervals were within ±20% (e.g., -11.84∼6.41 and -10.57∼11.88 for AUC_t and C_(max), respectively). Two parameters met the criteria of KFDA for bioequivalence, indicating that Neurocetil^(TM) tablet is bioequivalent to Nicetile^(TM) tablet.

정신분열병 환자의 임상반응에 따른 혈장 Homovanillic Acid와 혈장 할로페리돌의 변화

구자일,오동열,양병환 大韓神經精神醫學會 1992 신경정신의학 Vol.31 No.1

Nineschizophrenic inpatients were studied under halopendol treatment for the purpose of evaluating the possible correlation between plasma HVA, leuels(P-HVA) plasma halopendol levels (P-haloperidal) and clinical symptom changes. The authors measured plasma HVA and plasma haloperidol levels, and checked BPRS and SAPS scores at baseline, 7th day. 28th day and 56th day of treatment. 1) P-HVA concentrations of total patients were highest on 7th day, then returned to baseline levels on 28th day. but that of drug responder group(6 patients) were highest on pretreatment then decreased below baseline levels on 7th day and continued to decrease till 56th day of treatment. 2) P-HVA concentrations of total patients showed positive correlations with BPRS scores (r=0.28, p<0.l) and-with SAPS scores(r=0.36, p<0.05) and that of drug responder group showed also positive correlations with BPRS scores(r=0.24, p=NS) and with SAPS scores (r=0.45. p<0.0l). 3) P-haloperidol concentrations of total patients showed significant positive correlation with haloperidol doses(r=0.73, p<0.00l) and that of drug responder group showed positive correlation with haloperidol doses(r=0.53. P<0.01). P-haloperidol concentration of drug responder group showed significant negative correlation with BPRS scores(-0.72, P<0.01) and with SAPS scores(-0.59. P<0.001) but that of total patients did not. 4) The haloperidol doses of drug responder group showed meaningful negative correlations with P-HVA(r=-0.38. p=0.03) and with BPRS scores (r=-0.50. P<0.01) and with SAPS scores(r=-0.47. p=0.0l) but that of total patients did not. The authors discussed the meaning of above results.

골격형 3급 부정교합 아동의 Face mask에 의한 치험례

구동준,김진태 大韓小兒齒科學會 1993 大韓小兒齒科學會誌 Vol.20 No.2

Angle Class Ⅲ malocclusion is classified with functional, skeletal and combined type. The skeletal type is divided into maxillary retrognathism or posterior positioning, mandibular prognathism or anterior positioning and combination type. The Class Ⅲmalocclusion is more common in the Oriental. This report presents cases of mandibular prognathism and maxillary retrognathism treated by means of FACE MASK. The protraction direction was downward vector 20?? to the occlusal plane, and the force delivered was 600 gm per side. After the active treatment, favourable results were obtained.

고온 실내환경의 자연환기효과에 대한 수치해석 연구

구윤서,신동윤,이정주 용인대학교 자연과학연구소 1998 自然科學硏究所論文誌 Vol.3 No.2

This study was predicted of ventilation effects from natural ventilation using windows at high temperature passage. Predict method was numerical model simulation by using RNG (Renormalization Group) k-ε turbulence model, because well describe in heat turbulent phenomenon. Result of this study, if exclude heat flux and open a all windows, predicted not over 40℃ in passage temperature at outdoor air temperature 34℃ in summer season.

骨髓纖維化症으로 移行된 骨髓異形成症候群

이동순,황유성,조한익,김노경,김병국 大韓血液學會 1985 大韓血液學會誌 Vol.20 No.2

Case Study를 통한 Corporate Identification Program開發에 관한 硏究

具東祖 同德女子大學校 1991 同大論叢 Vol.21 No.1

In 1970s the corporate Identification was introduced into Korea through the prospering industries such as construction, textile and finance, and it was to make an abnormal start without the systematic theory or without the specialists. The reason for that are as follows. At that time the managing staff of the industries had little understanding of the Corporate Identification. And the Corporate Identification research group was formed around professors of the Art Colleges who lacked the exact concept of the CI and so they misunderstood the Visual Identity as the whole thing of the Corporate Identification. Among the central financial instituions the Bank of Seoul introudced the C.I.P. last and the fact is significant from two aspects. One is the renovation of the Bank image into a new one and the other is the establishment of new consciousness. The former is quite the same as the one generally pursued in the course of its introduction. But in case of the Bank of Seoul, the Corporate Identification has a characteristic totally different from the existing symbol, the renovation of consciousness means that the unprecedented number of people in the history of the Corporate Identification, including the managing staff, the customers and shareholders, are participating in the project. Also it means that the project is not limited to the design development by the Corporate Identification research team. The consciousness renovation makes it possible for the customers and the bank clerks that can be easily alienated to participate actively in the course of the Corporate Identification introduction and thereby to contribute in settling the fresh image of the bank positively. The Corporate Identification is not the one that pretties up the appearance of a business. The changed appearance made by the Corporate Identification is sure to change one's mind and move poeple into action.

코발트-니켈 을 함유한 금속폐기물로부터 금속이온 분리

具廣謨,李東鎭 慶一大學校 1999 論文集 Vol.16 No.2

We have carried out two method to isolate cobalt and nikel ion from waste. The first isolation method has been accomplished to the difference in solubility using dimethyl glyoxim. Nikel ion in mixture react with dimethylglyoxim to be pink precipitation and cobalt ion to be yellow colored solution. Pink precipitation is neutral charge nikel complex,〔Ni(dmg)₂〕, and it's structure is identified by IR spectra data. Meanwhile, the solution is negative 〔Co(dmg)₃〕complex ion. And yellow solution converted to purple colored 〔Co(dmg)₂(H₂O)₂〕solution. Another method using column chromatography has also studied. Each metal was reacted with ethylenediamine to be form 〔Ni(en)₃〕²+ and 〔Co(en)₃〕³+ complex respectively ,and then isolate them on column chromatography packed Sp- Sephadex C-25 cation exchang resin. The more the concentration of eluent increase, the more fast comlexes elute. And the cation effect on various eluent was shown as following order in retention volume ; K+〈 NH₄∼ Na+.