• International Journal of Fuzzy Logic and Intelligent Systems
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• v.1 no.1
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• pp.50-55
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• 2001

We generalize mainly the concept of c-continuity of a mapping due to Gentry and Hoyle III in fuzzy setting. And we investigate some properties of fuzzy c-continuous mappings.

• Journal of Educational Research in Mathematics
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• v.25 no.2
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• pp.207-223
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• 2015

This study aims to find ways for securing continuity of elementary mathematics curriculum and kindergarten curriculum. To do this, we considered the status of 'mathematical exploration' in Nuri curriculum and analysed the correspondence of content-domains and the continuity between Nuri curriculum for ages three to five and 2009 revised national elementary mathematics curriculum, based on the reconstructed achievement criteria. The result of these analyses reveals that the classification of five content-domains both for 'mathematical exploration' of Nuri curriculum and for 2009 revised national elementary mathematics curriculum coincides. We also recognized the reconstructed achievement criteria which are considered as reverse continuity or as discontinuity of Nuri curriculum and 2009 revised national elementary mathematics curriculum in all the five content domains. The former means being lower in levels or reduction in ranges from Nuri curriculum to elementary one. The latter means that some reconstructed achievement criteria are included in only one of the two curriculum. Based on these results, we suggested several ways to secure the continuity between Nuri curriculum and 2009 revised national elementary mathematics curriculum in the perspective of mathematics education.

• Health Policy and Management
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• v.18 no.1
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• pp.85-107
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• 2008

This study aims to describe levels and distribution of the continuity of primary care among children and adolescent patients who are 2-19 years old, and analyze the effects of it on the risk of hospitalization. Study population was 2-19 year old child and adolescent patients as of 2002, who had more than three ambulatory care visits in the years of 2002-3 and whose most frequent provider was the primary care practices (189,660 persons). Association of levels of primary care with the risk of hospitalization was evaluated using multiple event survival analysis. Outcome variables were whether the patient had hospitalized or not, and whether the patient had hospitalized due to ambulatory care-sensitive conditions or not. Multiple event survival analysis revealed statistically significant association of the levels of primary care with the risk of hospitalization. Hazard ratio was 1.34 [1.27-1.41] at the medium level of continuity and 1.47 [1.39-1.55] at the lower level where outcome variable was whether the patient had been hospitalized or not. Hazard ratios were 1.35 [1.21-1.50] at the medium level of continuity and 1.60 [1.44-1.78] at the lower level, where outcome variable was whether the patient been had hospitalized due to ambulatory care-sensitive conditions or not. This study produced some evidences on the benefits of continuity of care, which will in turn support the introduction of personal doctor registration program in the future.

• Journal of the Computational Structural Engineering Institute of Korea
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• v.31 no.2
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• pp.71-78
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• 2018

This paper presents the assembling of multiple patches based on the single patch isogeometric formulation for the shear deformable shell element given in the previous study. The geometrically exact shell formulation has been accomplished with the shell theory based formulation and the generalized curvilinear coordinate system directly derived from the given NURBS geometry. For the knot elements matching across adjacent surfaces, the zero-th and first parametric continuity conditions are considered and the corresponding coupling constraints are implemented by a master-slave formulation between adjacent patches. The constraints are then enforced by a substitution method for condensation of the slave variables, thereby reducing the model size. Through numerical investigations, the important features of the first parametric continuity condition are confirmed. The performance of the multi-patch shell models is also examined comparing the rate of convergence of response coefficients for the zero and first order continuity conditions and continuity in coupling boundary between two patches is confirmed.

• The Pure and Applied Mathematics
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• v.17 no.2
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• pp.145-150
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• 2010

In this paper, we introduce the concepts of faintly ${\gamma}$-continuity and extremely ${\gamma}$-closed graph. And we study characterizations of such functions and relationships between faintly ${\gamma}$-continuity and extremely ${\gamma}$-closed graph.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.6
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• pp.2161-2168
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• 2010

The administration data of the national health insurance and health insurance bills were utilized in this study. The data of 485,953 patients who were at the age of 30 and up and used the out-patient departments of every medical institution located in some regions involving two southern and northern provinces once or more during a 184-day period from July to December, 2008. As a result of analyzing their Continuity of Ambulatory Care and factors affecting it, the following findings were given: The continuity of ambulatory care among the adult patients with hypertension in our country turned out to be on a high level(MMCI $0.96{\pm}0.13$, MFPC $0.96{\pm}0.12$). Given examining the outpatient medical-cure continuity level according to index, the averagely medical-cure continuity level was calculated to be high level with MMCI, $0.96{\pm}0.13$, and MFPC $0.96{\pm}0.12$. Thus, the tendency of visiting only one medical provider was high. The findings of the study illustrated that the average continuity of ambulatory care among the adult patients with hypertension in our country was on a high level, and it seemed that special care should be provided to patients with a low-level continuity of ambulatory care, such as women and elderly people aged 64 and over. The findings of the study are expected to serve as one of the barometers for the health care of patients with hypertension and for the performance of national hypertension management plans.

• Communications of the Korean Mathematical Society
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• v.10 no.2
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• pp.483-490
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• 1995

A parametric cubic spline interpolating at fixed number of nodes is constructed by formulating a parametric cubic $g^2$ B-splines $S_3(t)$ with not equally spaced parametric knots. Since the fact that each component is in $C^2$ class is not enough to provide the geometric smoothness of parametric curves, the existence of $S_3(t)$ oriented toward the modified second-order geometric continuity is focalized in our work.

• Honam Mathematical Journal
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• v.25 no.1
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• pp.153-162
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• 2003

Recently, the generalized digital $(k_{0},\;k_{1})$-continuity and its properties are investigated. Furthermore, the k-type digital fundamental group for digital image has been studies with the generalized k-adjacencies. The main goal of this paper is to find some properties of the k-type digital fundamental group of Boxer and to investigate some properties of minimal simple closed k-curves with relation to their embedding into some spaces in ${\mathbb{Z}}^n(2{\leq}n{\leq}3)$.

• Journal of Families and Better Life
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• v.22 no.6 s.72
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• pp.191-199
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• 2004

The main purpose of this study was to examine the impact of religious participation on the depression of elder adults in USA. Specifically, this study examined how the influence of religious participation varied according to continuity or discontinuity of participation. Data from N=1,658 adults aged 65-90 who were respondents to two waves of the U.S. National survey of Families and Households 1987-1993 were used for these analyses. Depression was measured with a 12-item (of the original 20) modified version of the CES-D (Center for Epidemiological Studies-Depression). Multivariate regression models controlling for several demographic variables were estimated. Some clear evidence was found supporting activity theory and continuity theory That is, participating in a religious organization role at Time 2 but not Time 1 (T1 No - T2 Yes) and being continuously involved in religious organizations both at Time 1 and Time 2 (T1 Yes -T2 Yes) were associated with reduced depression, compared to continuous nonparticipation in religious organizations (71 No -72 No).

• Bulletin of the Korean Mathematical Society
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• v.51 no.2
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• pp.303-315
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• 2014

In this work, we construct Kantorovich type generalization of a class of linear positive operators via Riemann type q-integral. We obtain estimations for the rate of convergence by means of modulus of continuity and the elements of Lipschitz class and also investigate weighted approximation properties.