• Title/Summary/Keyword: DID

Search Result 41,270, Processing Time 0.055 seconds

A Study On The Effects Network Externalities and Experiential Value Perceived from MIMService on Continuous Intention (MIM서비스에서 지각된 네트워크외부성과 경험가치가 지속적 사용의도에 미치는 영향에 관한 연구)

  • Li, Long;Gim, Gwang-Yong
    • Journal of Information Technology Services
    • /
    • v.12 no.1
    • /
    • pp.51-67
    • /
    • 2013
  • Mobile Instant Messenser (MIM) Market With the market is enlarging and attracting more and more companies. With the market expanding and number of users increasing, the competition in this area will be fierce. In order to gain competitive advantage, it is important to develop a strategy to maximize user value and to grasp the continuous usage intention of users. However, there are currently not enough researches done in this field. Therefore, this paper to study the effects of network externalities and perceived experiential value on perceived usefulness, user satisfaction, and continuous usage intention. The research results showed that the perceived experiential value and vertical compatibility significantly affected user satisfaction, but the perceived network size did not. The perceived network size and vertical compatibility did not affect the perceived usefulness. Also, the economic value, which is a sub-factor of the perceived experiential value, did not affect the perceived usefulness, but the functional value and hedonic value did significantly. The perceived network size significantly affected continuance usage intention, but the perceived network compatibility did not.

Biochemical characterization of Bacillus thuringiensis, 23 serovars (Biochemical thuringiensis, 23 serovars의 생화학적 특성)

  • Lee, Hyung-Hoan;Park, Mi-Yeoun;Lee, Chang-Woon
    • Microbiology and Biotechnology Letters
    • /
    • v.14 no.2
    • /
    • pp.205-208
    • /
    • 1986
  • The 23 serovars of Bacillus thuringiensis strain were commonly gram-positive and motile, formed endotoxin crystals, produced acid and alkali in the KIA media, and acid from glucose, hydrolyzed starch, and reduced nitrate but did not produce H$_2$S, oxidase and indole, did not decompose lysine, ornithine, phenylalanine, malonate, lactose, dulcitol, adonitol, inositol, sorbitol, arabinose, raffinose, rhamnose, maltose, and xylose. Eighteen serovars were positive in the MR tests and 15 in the VP tests. Four serovars used citrate. Five serovars produced urease, 5 $CO_2$ from glucose, 2 DNase, and 15 lecithinase. Twelve serovars decomposed arginine, 11 did sucrose, 2 manitol, and 9 salicin Serovar tohokuensis did not hemolyze, but the others did.

  • PDF

ENDOCRINE CHANGES AND CIRCULATING INSULIN-LIKE GROWTH FACTORS IN NEWBORN CALVES FED COLOSTRUM, MILK OR MILK REPLACER

  • Lee, C.-Y.;Head, H.H.;Feinstein, C.R.;Hayen, J.;Simmen, F.A.
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.8 no.1
    • /
    • pp.51-58
    • /
    • 1995
  • To examine whether colostral growth factors are transferred to the general circulation, concentrations of plasma cortisol, insulin, prolactin, growth hormone, insulin-like growth factors(IGFs) -I and -II, IGF-binding proteins(IGFBPs) and total protein were measured in newborn calves fed colostrums, milk of milk replacer before and after feeding at 12 h intervals during the first two days after birth. Plasma protein concentrations increased with time after than in milk- or milk replacer-fed calves. The mean protein concentration was greater in colostrum-fed than in milk- or milk replacer-fed calves. Plasma cortisol levels transiently declined after each feeding regardless of the type of diet, while insulin levels tended to increase. Mean concentrations of these hormones did not differ between dietary groups, nor did they change with time after birth. Plasma concentrations of prolactin and growth hormone did not differ between dietary groups and also did not change with time after birth or after feeding. Concentrations of IGF-I and IGF-II transiently increased at the second feeding period, but these, as well as plasma IGFBP profiles, were not different between groups or before and after feeding. Results did not indicate significant transfer of colostral growth factors across the newborn ruminant small intestine.

A Study on Variation Characteristics and Correlationships of Water Quality in Daecheong Lake Basin (대청호 유역의 수질 변동특성 및 상관성에 관한 연구)

  • 김재윤
    • Journal of Environmental Science International
    • /
    • v.5 no.6
    • /
    • pp.763-770
    • /
    • 1996
  • This study was performed to analyze the variation characteristics of writer qulity, correlation analysis of water quality data at each site and among the items of water Quality data. Water quality for analysis was monthly values of water temperature, pH, dissolved oxygen, biochemical oxygen demand, chemical oxygen demand, suspended solid, 7-N and T-P checked in Daecheong Lake from January to December, 1995. It was analyzed variation of monthly water qulity was well from February to April, water temperature and COD seemed to have high correlationships at all sites. Regression equation is COD = 0.07 Water temperature +1.23 ($R^2$: 0.7616) . Results of the correlation analysis of water quality data showed that DO had high correlationships between site 1 and site 2, BOD did site 1 and 3, COD did site 1 and 2, 55 did site 5 and 6, 7-N did 2 and 3, 7-P did site 4 and 6. Regression equations for estimate of water quality data are as follows. $DO_1$=4.46+0.59 DO, ($R^2$=0.8868), $BOD_1$ = 0, 52+0.63 BOD3 ($R^2$ = 0.6390) $COD_2$ = 0.44+0.71 $COD_1$ ($R^2$ = 0.9183), SS6 = 0.89+0.7055.($R^2$ = 0.9155) $TN_3$ = 0.151 +0.886 $TN_2$ ($R^2$ = 0.9415), $TP_4$ = 0.004+5.758 $TP_6$ ($R^2$ = 0.9669)

  • PDF

Effects of Panax ginseng on Type I Hypersensitivity (제1형 과민 반응에 미치는 고려인삼의 영향)

  • Kim, Young-Ran;Lee, Eun;Lee, Shee-Yong;Kim, Kyeong-Man
    • Journal of Ginseng Research
    • /
    • v.20 no.1
    • /
    • pp.1-6
    • /
    • 1996
  • Effects of Panax ginseng on allergic reactions were studied uslng various in vivo and in vitro experimental models such as 48-hr passive cutaneous anaphylaxis, mediators-induced skin reactions, histamine release from rat peritoneal mast cells, hexosaminidase release from RBL-2H3 cells, and lipoxygenase assay . In all of anti-allergic experiments we conducted, ginseng components (50% ethanol extract or ginseng total saponin or ginsenosides) extracted from Korean red ginseng, did not show significant anti-allergic actions. In 48-hr passive cutaneous anaphylaxis and mediators-induced skin reactions, 50% ethanol extract did not suppress hypersensitivity reactions. Total saponin, 50% ethanol extract, and 8 major ginsenosides did not show inhibitory effects on lipoxygeanse activity. Ginseng total saponin did not inhibit histamine release from rat peritoneal mast cells. All of the ginseng components mentioned above were also tested on RBL-2H3 cells, but none of them inhibited hexosaminidase release from this cell line. These results suggest that Panax ginseng does not have effects on allergic reactions at the level of 50% ethanol extract or total saponin used. All of 8 major saponin components tested ($Rb_1$, $Rb_2$, Rc, Rd, Re, Rf, $Rg_1$, $Rg_2$), did not inhibit lipoxygenase activity and degranulation events.

  • PDF

A Comparison of Recognition by Gender of Sexy Body Parts and Apparel Designs (성적 자극을 유발하는 신체부위와 관능적 디자인의 인지도에 관한 성별 비교)

  • Lee Jeong-Min;Park Sook-Hyun;Kwon Mi-Jeong
    • Journal of the Korean Society of Clothing and Textiles
    • /
    • v.29 no.9_10 s.146
    • /
    • pp.1316-1328
    • /
    • 2005
  • The purpose of this study was to compare the differences in recognition of sexy body parts and apparel designs by gender and correlations between sexy body parts and apparel designs. Data were collected through a survey of 265 males and 303 females. Data were analyzed by included t-tests, f-tests, and Pearson's correlations. The results were as follows: 1. Females found male body parts were sexier than males did. Males found female body parts were sexier than females did. 2. Females found men's clothing designs were sexier than males did. Also, males recognized women's clothing designs as sexier than females did. 3. Males found see-through and body-consciousness, the methods of designing sexy styles, were sexier than females did. Differences in sexy color recognition by gender were also found. 4. There were correlations between most of sexy body parts and designs which emphasized that body parts. The results of this study shows the differences in recognition and correlation by gender. The results may be applied to develope sexy designs for different genders.

The effect of motion according to general coordination manipulation treatment on cervical (경추의 전신조정술 관절치료가 관절가동범위에 미치는 영향)

  • Kim Hyoung-Su;Kim Eun-Young;Koo Bong-Oh;Bae Sung-Soo
    • The Journal of Korean Physical Therapy
    • /
    • v.15 no.4
    • /
    • pp.90-102
    • /
    • 2003
  • Purpose: The purpose of this study is to search effect that GCM joint treatment gets to range of motion of cervical, lumbar, trunk and anke. And cervical gets in ankle joint. Methods: Estimated body deformity using GCM body type assesment chart then measured range of motion of each region. After control group did as act freely after do experiment pre measurement control group did post measurement. After control group did as act freely after do experiment premeasurement, control group did postmeasurement. Each region was measured by measurer who each subject person differs. Experimental group did GCM joint treatment and all measurements each region by measurer who each subject person differs three times measure postmeasurement after premeasurement. When measure with each measurement, measured after leave and walk time interval for 10 minutes. Result: For the analysis of the result of experiment, the results is change amount comparison increased to keep in mind except cervical flexion and both ankle joint's dorsiflexion after experiment of experimental group. In experimental group, cervical, lumber and ankle joint of range of motion was significantly increased(p<.05).

  • PDF

A Survey on Consumption Realities of Kwamaegi in Daegu\ulcornerKyungbuk Area (대구.경북지역의 꽁치과메기의 이용실태 조사연구)

  • 한재숙;김정애;이연정
    • Journal of the East Asian Society of Dietary Life
    • /
    • v.12 no.6
    • /
    • pp.528-535
    • /
    • 2002
  • The main purpose of this research was to investigate the uses of Kwamaegi not only in Kyungbuk area also in Daegu metropolitan city to predict f3r the consuming nationwide. This study was performed to analyze the preference, recognition, frequency of intake by survey research. The results were summarized as follows: Most of subjects(96.6%) knew what Kwamaegi was. The male subjects (97.9%) blew more about Kwamaegi than the females (95.0%) did(p<.05). The reasons why peoples did not eat kwamaegi were 'did not want'(40.6%),'had no chance'(33.7%),'did not know'(24.1%) in order. Males liked Kwamaegi more than females did(p<.01). The reasons why they liked Kwamaegi were because males(42.6%) liked its suitability fur side dish when drinking(33.9%) and female(30.4%) liked its plain taste(p<.001). Among respondents, 48.7% ate 3 to 10 of Kwamaegies at one time. Most subjects recognized Kwamaegi as a healthy food(M=3.22). Males(M=3.40) pointed out to be improved in the advertisement while females(M=3.15) to decrease in fishy smell of Kwamaegi.

  • PDF

An Integrated Study for Customer Loyalty in Internet Shopping Mall (인터넷 쇼핑몰의 고객충성도에 대한 통합적 연구 - 옥션과 인터파크 고객을 중심으로)

  • Kwon, Young-Guk;Lee, Sun-Ro;Park, Hyun-Jee
    • The Journal of Information Systems
    • /
    • v.15 no.4
    • /
    • pp.23-53
    • /
    • 2006
  • The main purpose of this paper is to setup a integrated model and verify the integrated model for a customer loyalty in the internet shopping environments. The results of a structural equation model (SEM) using AMOS and LISREL include: First, hypothesis that Internet environment characteristics in outside factors has a positive effect on satisfaction, trust and commitment is partially supported. However, mutual communication to satisfaction, community to commitment and open-ubiquity to trust did not reveal a positive effect. Second, hypothesis that Internet showing mall environment has a positive effect on satisfaction is partially supported. However, transaction to commitment and transaction to trust did not reveal a positive effect. Third, hypothesis that relational benefits has a positive effect on both satisfaction and commitment is partially supported. However, confident honest to commitment and economic honest to trust did not reveal a positive effect. Forth, satisfaction trust and commitment have a strong effect upon loyalty. Fifth, satisfaction has a positive effect on trust and commitment. However, trust did not show a positive effect on commitment. Outside factors(Internet environment characteristics, showing mall characteristics, and relational benefit) partially revealed a positive effect on satisfaction trust, and commitment. Mediating variables such as satisfaction, trust, and commitment again have positive effect on loyalty. But, the relationship for trust to commitment did not reveal the significant effect in this study while other studies revealed significant effect.

  • PDF

The Influence of Consumer's Shopping Value and Brand Alliances on Purchasing Behavior for Apparel Products of Internet Private Brand (쇼핑가치와 상표제휴가 인터넷 쇼핑업체의 PB의류제품 구매행동에 미치는 영향)

  • Hwang, Sun-Jin;Kim, Hee-Jung
    • Journal of the Korean Society of Clothing and Textiles
    • /
    • v.32 no.2
    • /
    • pp.247-258
    • /
    • 2008
  • The purposes of this study were to investigate influences of consumer's shopping value, brand alliances and apparel product involvement on purchasing behavior. The subjects of 172 hedonic shopping value and 208 utilitarian shopping value were chosen to participated for data collection. The data was analyzed by factor analysis, cluster analysis, and ANOVA. The main results of study were summarized as follows: 1. When an Internet Private Brand(PB) did not form brand alliance with a National brand(NB), utilitarian shopping value consumers did not differ in preference irrespective of whether product involvement was high or not. However, when the PB formed brand alliance with well-known NB, they showed higher preference for the high involvement apparel product than the low involvement product. 2. When an Internet PB did not form brand alliance with well-known NB, the utilitarian shopping value consumers' word-of-mouth intention did not differ between the high involvement apparel product and low involvement apparel product. 3. It was revealed that when an Internet PB did not form brand alliance, the utilitarian shopping value consumers showed higher intention to purchase than that of the low involvement product.