• Honam Mathematical Journal
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• v.44 no.1
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• pp.26-35
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• 2022

In this paper we introduce two type of representations of the Pascal matrix via induced transformations of some q-derivatives as well as their some combinatorial applications.

• Bulletin of the Korean Mathematical Society
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• v.52 no.1
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• pp.35-43
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• 2015

Let q > 1 be an odd integer and c be a fixed integer with (c, q) = 1. For each integer a with $1{\leq}a{\leq}q-1$, it is clear that the exists one and only one b with $0{\leq}b{\leq}q-1$ such that $ab{\equiv}c$ (mod q). Let N(c, q) denote the number of all solutions of the congruence equation $ab{\equiv}c$ (mod q) for $1{\leq}a$, $b{\leq}q-1$ in which a and $\bar{b}$ are of opposite parity, where $\bar{b}$ is defined by the congruence equation $b\bar{b}{\equiv}1$ (modq). The main purpose of this paper is using the mean value theorem of Dirichlet L-functions to study the mean value properties of a summation involving $(N(c,q)-\frac{1}{2}{\phi}(q))$ and Kloosterman sums, and give a sharper asymptotic formula for it.

• Korean Journal of Microbiology
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• v.40 no.2
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• pp.73-80
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• 2004

Coenzyme Q is a quinone derivative that acts as a lipid electron carrier in the respiratory chain located at mito-chondrial inner membrane in eucaryotes or plasma membrane in procaryotes and also functions as antioxidant. A putative Neurospora crassa coq-4 gene was cloned and functionally expressed in Saccharomyces cerevisiae coq4 mutant. Complemented S. cerevisaie mutant strain was able to produce coenzyme $Q_{6}$ and showed a normal growth rate. They also showed less sensitivities to polyunsaturated fatty acids such as linoleic acid or linolenic acid. The predicted sequence of N. crassa COQ4 is consisted of 347 amino acids with a molecular mass of 39.7 kDa and showed 35% identity and 52% similarity with that of S. cerevisiae.

• The Journal of the Korea institute of electronic communication sciences
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• v.8 no.5
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• pp.713-724
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• 2013

The purpose of this study was to explore and classify the types of portal sites' preferences among korean elderly in Korea by using the Q-methodology. 35 q-samples were adopted based on literature reviews and interviews with elderly and staff in charge of information education for the elderly. As results, types of portal sites' preferences among Korean elderly were categorized into four: 1) universality and popularity, 2) personal interests, 3) social relationship, and 4) convenience. This study also explored attributes of each type of perception and delivered implication to prepare and improve better portal sites for the elderly and finally help them use portal site more effectively and enhance their quality of life.

• Annals of Rehabilitation Medicine
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• v.42 no.6
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• pp.884-887
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• 2018

We report a female proband carrying a de novo 5q34-q35.2 deletion breakpoint, and review the unique skeletal phenotype and possible genotype related to this mutation. The patient presented with a persistent head tilt and limited head rotation. Non-contrast-enhanced three-dimensional computed tomography of the cervical spine revealed several malformations including a bone cleft in the right pars interarticularis, a bone defect in both C5 lamina and the transverse foramen at C2-C3, agenesis of the right articular process of C5, bony fusion of C4-C5, and subluxation of the craniocervical joints. Several deformities of the cervical spine seen in this patient have not been associated with the 5q deletion. A review of 5q-related mutations suggests that abnormalities associated with MSX2 gene might cause cervical spine abnormalities.

• Journal of Korean Academy of Nursing
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• v.48 no.6
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• pp.679-691
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• 2018

Purpose: This study was aimed at identifying the types of perceptions of ethical issues among perioperative nurses. Methods: Q-methodology focusing on individual subjectivity was used with data collected in November 2016. Thirty-four Q-statements were selected and scored by the 35 participants on a 9-point scale with normal distribution. Participants were perioperative nurses working in advanced general hospitals and general hospitals. The data were analyzed using the PC-QUANL program. Results: A total of 35 perioperative nurses were classified into 4 factors based on the following viewpoints: self-centered (type 1), onlooking and avoiding (type 2), patient-centered (type 3), and problem-centered (type 4). The 4 factors accounted for 57.84% of the total variance. Individual contributions of factors 1, 2, 3, and 4 were 41.80%, 7.18%, 5.20%, and 3.66%, respectively. Conclusion: The major contribution of this study is the clarification of perioperative nurses' subjective perceptions of ethical issues. These findings can be used in formulating effective strategies for nursing educators, professional nurses, and nursing administrators to improve ethical decision-making abilities and to perform ethical nursing care by the appropriate management of ethical issues in everyday nursing practice.

• The Pure and Applied Mathematics
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• v.22 no.1
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• pp.35-56
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• 2015

In this paper, we classify all nonconstant smooth CR maps from a sphere $S_{n,1}{\subset}\mathbb{C}^n$ with n > 3 to the Shilov boundary $S_{p,q}{\subset}\mathbb{C}^{p{\times}q}$ of a bounded symmetric domain of Cartan type I under the condition that p - q < 3n - 4. We show that they are either linear maps up to automorphisms of $S_{n,1}$ and $S_{p,q}$ or D'Angelo maps. This is the first classification of CR maps into the Shilov boundary of bounded symmetric domains other than sphere that includes nonlinear maps.

• Communications of the Korean Mathematical Society
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• v.35 no.2
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• pp.417-445
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• 2020

The purpose of this article is to continue the study of q, 𝜔-special functions in the spirit of Wolfgang Hahn from the previous papers by Annaby et al. and Varma et al., with emphasis on q, 𝜔-Apostol Bernoulli and Euler polynomials, Ward-𝜔 numbers and multiple q, 𝜔power sums. Like before, the q, 𝜔-module for the alphabet of q, 𝜔-real numbers plays a crucial role, as well as the q, 𝜔-rational numbers and the Ward-𝜔 numbers. There are many more formulas of this type, and the deep symmetric structure of these formulas is described in detail.

• 한국전산유체공학회:학술대회논문집
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• 2008.08a
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• pp.35.5-35.5
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• 2008

• 발명특허
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• v.33 no.2 s.379
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• pp.35-35
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• 2008