Asia-Pacific Journal of Business Venturing and Entrepreneurship
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v.16
no.6
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pp.269-285
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2021
As the systematic management of knowledge within an organization is recognized as a core factor for the continuous growth of an organization, organizations are increasing their interest in knowledge management. Knowledge management requires the active sharing of knowledge by insiders of the organization, but there are cases of failure due to the lack of participation of leaders and employees of the organization. The purpose of this study is to suggest a mechanism by which the authentic leadership of leaders in small and medium-sized enterprises(SME), which are relatively lacking in knowledge production capacity, leads to intention to share knowledge of employees. In addition, the study confirms that reciprocal feedback and task interdependence moderate the relationship between antecedent factors and intention to share knowledge. In this study, a research model was derived based on precedent research, and 272 samples were obtained by conducting a questionnaire survey on employees of SME that introduced a knowledge management policy. And, the study verified the hypothesis by applying structural equation modeling based on AMOS 22.0. The results of the study proved that authentic leadership has a positive effect on the intention to share knowledge through organization identification and organization commitment, and confirmed that reciprocal feedback and work interdependence moderate the relationship between knowledge sharing intentions and antecedent factors. This study suggests the mechanism by which the authentic behavior of the leaders of SMEs affects the knowledge sharing behavior of employees, and suggests that work cooperation strengthens the influence of the mechanism.
Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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v.6
no.8
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pp.63-72
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2016
The main purpose of this study was to empirically validate whether a factor in reducing youth externalizing problem behaviors impact analysis and affection between father and youth self-esteem externalizing problem behavior through effective regulation. The survey was conducted by the researcher who visits the school to collect the sample data by random sampling method on 336 male students at D area. After delating the 38 insincere questionnaires, final 298 data were analyzed. Using SPSS 21.0, the simple correlational analysis was conducted to decide the relationship among the variables and in order to know the reciprocal model, hierarchical multiple regression analysis was implemented. The results showed the esteem and the affection his father on a statistically significant effect on youth externalizing problem behavior, father attachment had the effect of regulating the relationship between self-esteem and externalizing problem behavior. Through these results through the self-esteem Improvement Plan of the Father and the love of young people and to promote a proposal for reducing externalizing problem behavior.
As quickly becoming an ageing society in Korea, this study aims to investigate how family caregivers' burden with demented patients and social supports are related to their health and quality of life, and the interaction of caregiving burden and social supports on caregivers' health and quality of life. The participants were 207 family caregivers (106 females) of demented patients lived in Seoul, Kyunggi, and Chungcheong areas, whose average of age were 51.62 ( SD=9.25). The psychological tests used in this research included the following: Multidimensional Caregiver Burden Inventory, Chon's Physical Symptom Questionnaire, Hahn & Jang's Perceived Health Inventory, Negative Affect Self-Statement Questionnaire, and the Korean Version of Cambell's Subjective Well-being Scale, Social Support Survey in Medical Outcomes Study, and Kwon's Questionnaire for Maladjusted Problems of Demented. Results indicated that caregivers' burden with demented patient related to physical symptoms and depression positively, and perceived health and subjective well-being negatively. Social supports showed moderate effects on influences of caregiving burden in perceived health, depression, and subjective well-being of family caregivers with demented patients. It was identified the possibility of their buffering effect on negative results of caregiving burden with demented patients. Since caregiving burden accounted for the 34% of the variances for family caregivers' physical symptoms and depression, researchers discussed the promotion and intervention of their health and quality of life. Beside of different effects of social supports with level of caregiving burden, with previous studies it was discussed some saliant findings such as family caregivers with patients who showed severe dementia symptoms were perceiving even less supports from others.
Kang, Nam-Hwa;Lee, Na-ri;Rho, Minjeong;Yoo, Jin Eun
Journal of The Korean Association For Science Education
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v.38
no.6
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pp.875-883
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2018
This study examined overall effect of STEAM programs on student learning through meta-analysis of journal articles published for the past six years. We examined the areas of effects that the research tested and analyzed overall effect across the research. We first identified academic journal articles that utilized quasi-experimental design in examining STEAM effects on student learning and presented appropriate data for meta-analysis such as effect size. A total of 63 articles were identified to be appropriate for meta-analysis. Using R packages, we first identified outliers and eliminated them in the analysis of mean effect size. Thus, 172 effect sizes from 60 studies were analyzed. The results showed that the mean effect was medium (effect size = 0.52). Analysis showed that moderators of the effect were affective measures, thinking skills, character measures, and career aspirations, which meant the studies that measured these variables had more effect than achievement measures. On the other hand, the school level (elementary, middle, and high school), the absence or presence of student products as program requirements, hours of intervention, and sample size did not moderate the effect. Thus, regardless of these variables STEAM programs produced medium effect in general. Based on these results, further research areas and topics are suggested.
The cactus family Cactaceae, numbering about 1,500 species, is a fleshy-stemmed perennial plant which is principally distributed in the south and north America. On the other hand, the cactus plant is presumed to be introduced into Korea in 1912-1945, thereafter it has been cultivated merely in favor of ornamentation with the exception of being occasionally used as medication among laymen. Opuntia elata which belongs to Opuntia genus, the Cactaceae family is one of the cacti being cultivated a great deal in Korea. Cho et. al. reported in 1974 that Opuntia dilenii manifested the cardiac inhibitory effect and oxytocic effect, and its mechanism might be partially due to the direct action. Besides this, there are few reports on the pharmacological research concerning Opuntia genus to be demonstrated in Korea. However, some other cacti have the remarkable pharmacological effects; the active ingredients, mescaline, anhalamine, anhalanine, etc. from Peyote cactus (Lophophora williamsii) belonging to Lophophora genus have the psychotomimetic and sympathomimetic effects, and the cardioactive glycosides from Cactus Grandifolius (Selenicereus grandiflorus) belonging to Cereus genus have the cardioactive and diuretic effects. The authors hereby inquired into this study to find out the propriety of the pharmacological properties of the ethanol extract of Opuntia elata (EX) on the heart, blood pressure, respiration, intestine and uterus in the experimental animals. The results of the experiment were as follows: 1. Administration of EX manifested the cardiac inhibitory effect caused by the negative inotropic action in the isolated heart of frog, and the pretreatment of atropine did not affect the inhibitory effect produced by EX. 2. Administration of EX manifested the transient hypotensive effect in the intact rabbit, and the pretreatment of atropine did not affect the hypotensive effect produced by EX. 3. Administration of the small dose of EX manifested no significant effect, but moderate dose or more the stimulating effect, and the large dose the asphyxia on the respiratory motility in the intact rabbit. 4. Administration of EX manifested the sustained augmentation of contractility in the excised duodenum of rabbit, and the pretreatment of atropine did not affect the stimulating effect produced by EX. 5. Administration of EX manifested the sustained augmentation of contractility in the excised pregnant uterus of rabbit, and the pretreatment of atropine and oxytocin did not affect the oxytocic effect produced by EX, but that of barium chloride more or less stimulated the oxytocic effect produced by EX.
This paper investigates the effects of public R&D support on medium-sized firms' R&D investment. The paper collects a panel dataset of Korean manufacturing firms' R&D investment and public support, and employs the DID (difference-in-differences) regression for the test of stimulating or crowding-out effect. Empirical analysis examines how the effect of public R&D support differs between small and medium-sized firms and whether firm size and technological capability moderate the effect in the sample of medium-sized firms. Empirical results show that public R&D support tends to generally stimulate private pure R&D investment for both small and medium-sized firms. Comparing the results for small and medium-sized firms, this paper finds that the stimulating effect is relatively larger and more significant for medium-sized firms, while the effect is not significant for small ones. Furthermore, the paper shows that the stimulating effect of public R&D subsidy on private R&D investment is relatively stronger for medium-sized firms with superior technological competence and the effect of tax support is greater for incompetent firms. These results suggest that public R&D policies and R&D programs, differentiated from those for existing small firms, are necessary for medium-sized firms to stimulate private R&D continuously and formulated carefully by considering firm size, technological capability and growth potential.
Diabetes mellitus, a universal and prevalent chronic disease, is projected to be one of the most formidable worldwide health problems in the 21st century. For those living with diabetes, there is a need for self-care skills to manage a complex medical regimen. Self-efficacy which refers to one's belief in his/her capability to monitor and perform the daily activities required to manage diabetes has be found to be related to self-care. The concept of self-efficacy comes from social cognitive theory which maintains that cognitive mechanism mediate the performance of behavior. The literature cites several research studies which show a strong relationship between self-efficacy and self-care behavior. Meta-analysis is a technique that enables systematic review and quantitative integration of the results from multiple primary studies that are relevant to a particular research question. Therefore, this study was done using meta-analysis to quantitatively integrate the results of independent research studies to obtain numerical estimates of the overall effect of a self-efficacy with diabetic patient on self-care behaviors. The research proceeded in three stages : 1) literature search and retrieval of studies in which self-efficacy was related to self-care, 2) coding, and 3) calculation of mean effect size and data analysis. Seventeen studies which met the research criteria included study population of adults with diabetes, measures of self-care and measures of self-efficacy as a predictive variable. Computation of effect size was done on DSTAT which is a statistical computer program specifically designed for meta-analysis. To determine the effect of self-efficacy on self-care practice homogeneity tests were conducted. Pooled effect size estimates, to determine the best subvariable for composite variables, metabolic control variables and component of self-efficacy and self-care, indicated that the effect of self-efficacy composite on self-care composite was moderate to large. The weighted mean effect size of self-efficacy composite and self-care composite were +.76 and the confidence interval was from +.66 to +.86 with the number of subjects being 1,545. The total for this meta-analysis result showed that the weighted mean effect sizes ranged from +.70 to +1.81 which indicates a large effect. But since reliabilities of the instruments in the primary studies were low or not stated, caution must be applied in unconditionally accepting the results from these effect sizes. Meta-analysis is a useful took for clarifying the status of knowledge development and guiding decision making about future research and this study confirmed that there is a relationship between self-efficacy and self-care in patients with diabetes. It, thus, provides support for nurses to promote self-efficacy in their patients. While most of the studies included in this meta-analysis used social cognitive theory as a framework for the study, some studies use Fishbein & Ajzen's attitude model as a model for active self-care. Future research is needed to more fully define the concept of self-care and to determine what it is that makes patients feel competent in their self-care activities. The results of this study showed that self-efficacy can promote self-care. Future research is needed with experimental design to determine nursing interventions that will increase self-efficacy.
In this study, the characteristics in the simulation of high-resolution coastal weather, i.e. sea surface wind (SSW) and significant wave height (SWH), were studied in a southeastern coastal region of Korea using the WRF and SWAN models. This analyses was performed based on the effects of various input factors in the WRF and SWAN model during M-Case (moderate days with average 1.8 m SWH and $8.4ms^{-1}$ SSW) and R-Case (rough days with average 3.4 m SWH and $13.0ms^{-1}$ SSW) according to the strength of SSW and SWH. The effects of topography (TP), land cover (LC), and sea surface temperature (SST) for the simulation of SSW with the WRF model were somewhat high on v-component winds along the coastline and the adjacent sea of a more detailed grid simulation (333 m) during R-Case. The LC effect was apparent in all grid simulations during both cases regardless of the strength of SSW, whereas the TP effect had shown a difference (decrease or increase) of wind speed according to the strength of SSW (M-Case or R-Case). In addition, the effects of monthly mean currents (CR) and deepwater design waves (DW) for the simulation of SWH with the SWAN model predicted good agreement with observed SWH during R-Case compared to the M-Case. For example, the effects of CR and DW contributed to the increase of SWH during R-Case regardless of grid resolution, whereas the differences (decrease or increase) of SWH occurred according to each effect (CR or DW) during M-Case.
Journal of the Korea Institute of Information Security & Cryptology
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v.25
no.5
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pp.1225-1233
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2015
This study investigates the effects of information security awareness arising from E-Commerce in terms of the Elaboration Likelihood Model(ELM) and analyzes the moderating effect of the trust's involvement and experience. Consumers are using E-Commerce Web sites, depending on the level of involvement and experience in E-Commerce. This study is based on the ELM, the information security awareness of consumer confidence in E-Commerce form, according to the degree of experience and involvement suggested a theoretical model to describe the effect that the scaling and, through empirical studies validation of model. Consumer confidence is formed the attitude of the E-Commerce company through different paths, depending on the type of awareness in the E-Commerce web site, this moderate has the effect of consumer involvement and experience. Studying the information security awareness of consumer in the on E-Commerce is considered to present a new perspective on trust.
Mouse mammary epithelial cells(NMuMG) were maintained onto 6-well plates (3$\times$105 cells/well) or chambered slide (1$\times$104 cells/well), in DMEM supplemented with 10% fetal calf serum. After serum starvation for 24 hours, DMNB (1$\mu$M) was added and exposed to UV light (300nm, 3 second pulse) after 2 hours from DMNB addition in order to activate DMNB which induces a rapid transient increase in intracellular cAMP upon UV irradiation. EGF (100ng/ml) and/or IGF-I (10ng/ml) were treated at the time of UV irradiation. Nuclear labeling index was estimated as percent of nuclear labeled cells(percent of S phase of cells) by incorporation of 3H-thymidine into DNA(1 hour pulse with 1$\mu$Ci/ml). DMNB(1$\mu$M), EGF (100ng/ml) and/or IGF-I (10ng/ml) signifciantly increased nuclear labeling index than those of control (P<0.05). Addition of DMNB+EGF or DMNB+EGF+IGF-I showed the interaction effect in nuclear labeling index (P<0.05). Protein kinase A activities by addition of EGF, IGF-I or EGF+IGF-I were 10.5, 9.8 or 9.4 unit/mg protein, respectively, and no statistical difference was found in comparison with control (P>0.05). Additon of DMNB+EGF showed the moderate interaction effect on tyrosyl kinase activity (P<0.1). In the fluorography analysis, there were no specific protein phosphorylation patterns were found at 1 or 15 minute by addition of DMNB. EGF and/or IGF-I. These results suggest that the interaction effect in nuclear labeling index by addition DMNB and EGF could be mediated through the modulation of tyrosyl kinase activity by cAMP.
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