• Biomedical Science Letters
• /
• v.10 no.2
• /
• pp.163-169
• /
• 2004

Worldwide, tuberculosis remains one of the leading infectious diseases, accounting for nearly 3 million deaths and more than 8 million new cases annually. DNA typing of Mycobacterium tuberculosis is important for the control of tuberculosis, since it can be used to track transmission route of tuberculosis, source of internal laboratory contaminations, and to answer questions on the nature of tuberculosis infections such as reactivation or exogenous reinfection of disease. At present, IS6110-based RFLP is the choice of method for typing large numbers of clinical isolates of M. tuberculosis, since it has the highest resolution power. However, RFLP requires long time, high cost and qualified experts, so only reference level laboratories can use the RFLP technique. In order to have an optional molecular typing method suitable for the clinical settings, this study evaluated the use of one of PCR-based typing methods, IS6110-based outward PCR for typing clinical isolates of M. tuberculosis. In brief, the results from this study showed that IS6110-based RFLP is useful to discriminate diverse clinical isolates of M. tuberculosis as well as to identify clinical isolates that belong to the same family or cluster groups that have been previously classified by RFLP analysis. In addition, the banding profiles resulted from IS6110-based outward PCR seemed to represent genomic characteristics of M. tuberculosis, since strains belong to the K-family generated unique band that is not present in any other strains but present only in the genome of K-family strains. The IS6110-based outward PCR was also shown to be useful with DNAs isolated directly from liquid cultures indicating this method can be suitable for typing M. tuberculosis in clinical settings.

• Korean Association of Arts Management
• /
• no.59
• /
• pp.33-72
• /
• 2021

I intended to discuss the new phase of the publicness of museums in a digital environment with the Goole Arts & Culture Project. To this end, I critically examined the instrumental approaches and technological optimism in the application of digital technology to museums, and scrutinized the recent museological issues, particularly the revision or curtailment of the museum's publicness amid the spread of neoliberal policy, which have been omitted within those technological approaches. This is because the meaning of Google Art & Culture can be considered more effectively through an extended theoretical reconstruction. Based on these theoretical discussions, I critically reviewed how the "non-profit," an important concept that defines the publicness of museums, was adopted and utilized as an business strategy by Google. As a result, I wanted to reveal that the neoliberalization of museums, the failure of the government's public function, the crisis of museum's publicness, and Google's "non-profit" strategy have been closely related. Armed with advanced digital technology, the GAC project appropriated the publicness of museums as a useful profit-making model. As such, now the concept of publicness of museums is at a point of more controversial and radical transformation than ever before.

• Bulletin of the Korean Mathematical Society
• /
• v.39 no.1
• /
• pp.43-51
• /
• 2002

The aim of this paper is to prove a convergence theorem of a generalized Ishikawa iteration sequence for two multi-valued strongly pseudo-contractive mappings by using an approximation method in real uniformly smooth Banach spaces. We generalize and extend the results of Chang and Chang, Cho, Lee, Jung, and Kang.

• Journal of applied mathematics & informatics
• /
• v.31 no.1_2
• /
• pp.27-34
• /
• 2013

In this paper, we consider the Duffing type p-Laplacian equation with multiple deviating arguments of the form $$({\varphi}_p(x^{\prime}(t)))^{\prime}+Cx^{\prime}(t)+go(t,x(t))+\sum_{k=1}^ngk(t,x(t-{\tau}_k(t)))=e(t)$$. By using the coincidence degree theory, we establish new results on the existence and uniqueness of periodic solutions for the above equation. Moreover, an example is given to illustrate the effectiveness of our results.

• Communications for Statistical Applications and Methods
• /
• v.5 no.2
• /
• pp.531-538
• /
• 1998

This paper first examines the skewness of Wishart distribution, using Tracy and Sultan(1993)'s results. Second, it investigates the variance-covariance matrix of random matrix $S_Y=YY'$ which has a non-central Wishart distribution. Third, it proposes the exact form of the third moment of the random matrix with non-central Wishart distribution.

• Journal of the Korean Data and Information Science Society
• /
• v.14 no.1
• /
• pp.11-21
• /
• 2003

In 1997 a new educational system that allows student to transfer between and within universities was first introduced. As a result, most colleges of basic arts and sciences face a serious problem since quite a few students there have transferred or seems to want to transfer. In this paper we study a problem of building a forecasting neural network for students who can possibly transfer.

• Honam Mathematical Journal
• /
• v.40 no.1
• /
• pp.125-138
• /
• 2018

In this present paper, we deal with the generalized (k, s)-fractional integral and differential operators recently defined by Nisar et al. and obtain some generalized (k, s)-fractional integral and differential formulas involving the class of a function as its kernels. Also, we investigate a certain number of their consequences containing the said function in their kernels.

• The Pure and Applied Mathematics
• /
• v.15 no.2
• /
• pp.135-151
• /
• 2008

The purpose of this paper is to prove some common fixed point theorems for finite number of discontinuous, noncompatible mappings on non complete Menger spaces. Our results extend, improve and generalize several known results in Menger spaces. We give formulas for total number of commutativity conditions for finite number of mappings.

• Food Engineering Progress
• /
• v.15 no.3
• /
• pp.195-202
• /
• 2011

Physiological characteristics of brown rice and black rice were investigated to provide the fundamental information of physiological property of rice and to show the potential of rice as a functional ingredient. Bioactive compounds were extracted from brown and black rices with aqueous solvents like 80% ethanol. Total phenolics, flavonoids and antioxidative capacity of brown and black rices' extracts were determined. Brown rice showed much higher amount of total phenolics and flavonoid contents as well as antioxidative capacity than those of milled rice indicating that most of bioactive compounds are located in the bran layer. Black rice showed higher total phenolics and flavonoid contents and antioxidative capacity than those of brown rices. The highest antioxidative capacity was obtained from Heugjinju followed by Heugseol, Sinnongheug-chal, Hopum and Samkwang. This result indicated that antioxidative capacity is affected by total phenolics and flavonoid contents. Both brown and black rices contained higher amount of ferulic acid than that of p-coumaric acid.

• Journal of the Korean Chemical Society
• /
• v.8 no.1
• /
• pp.33-38
• /
• 1964

최근에 H.Eyring과 그의 공동연구자들은 "Significant liquid theory"를 제안하여 여러가지 액체에 대하여 잘 적용됨을 보여주고 있다$^{(3)-(12)}$. 그들은 고체와 액체 내부의 고체상 분자는 하나의 연속된 상을 이룬다고 보고 고체의 몰부피 $V_s$는 같다고 보았으나 Einstein특성온도 ${\theta}$나 승화열 $E_s$ 등은 서로 다른 값을 취하지 않으면 않되었을 뿐더러 가장 안정한 분자주위에 모여 올수 있는 자리수 n가 12보다 크게 되는 등의 실제적으로 생각하기 어려운 결과를 내놓았다. 그러나 우리는 고체상의 분자의 액체내부의 고체상분자와는 일반적으로 서로 다른 상태를 이루고 있으리라는 생각을 하여 액체가 존재하는 가장 낮은 온도 즉 삼중점을 액체의 기저상태로 보고 이점에서 parameter들을 정하였다. 이와같이 하여 정한 $V_s$는 고체의 경우보다 약간 크고 ${\theta}$나 $E_s$는 약간 작은 값이 나타나게 되었고 n도 12보다 작은 값이 나왔다. 이것은 실제적으로 매우 타당한 결과이며 또 이들을 써서 여러가지 열역학적인 양을 계산한 결과는 우리가 취급한 모든 물질들에 대해여 실측치와 좋은 일치를 보여주고 있다.