• IMMUNE NETWORK
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• v.22 no.1
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• pp.13.1-13.14
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• 2022

Chronic inflammation plays a critical role in the development of obesity-associated metabolic disorders such as insulin resistance. Obesity alters the microenvironment of adipose tissue and the intestines from anti-inflammatory to pro-inflammatory, which promotes low grade systemic inflammation and insulin resistance in obese mice. Various T cell subsets either help maintain metabolic homeostasis in healthy states or contribute to obesity-associated metabolic syndromes. In this review, we will discuss the T cell subsets that reside in adipose tissue and intestines and their role in the development of obesity-induced systemic inflammation.

• Korean Journal of Agricultural Science
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• v.45 no.3
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• pp.429-435
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• 2018

The aim of this study was to provide different levels of dietary protein for optimum growth performance in calves and to investigate the impact on the concentration of insulin-like growth factor-1 (IGF-1) in serum. Female Sahiwal calves (n = 12, body weight (BW) = $40{\pm}4.3kg$ and age = $60{\pm}10days$) were selected and divided into three groups with 4 animals in each group. Three diets of T0, T1 and T2 with 18, 20 and 22% of crude protein levels, respectively, were given to the calves to assess the post-weaning growth performance. Calves fed the T2 diet showed a higher (p < 0.05) dry matter (DM) intake than those fed the T0 and T1 diets. The feed conversion ratio (FCR) for the calves fed the T2 diet was lower (p < 0.05) than those of the calves fed the T0 and T1 diets. The T2 group had the highest BW (p < 0.05) compared with the other groups. The concentration of IGF-1 in serum increased (121.9, 143.3, and 152.9 ng/ml for T0, T1, and T2, respectively) as the crude protein (CP) level increased. Overall, the results of this study suggest that post weaning diets T1 and T2 with 20 and 22% crude protein in Sahiwal female calves had significantly increased the BW and serum IGF-1 concentration. The IGF-1 estimation might be a physiological indicator for growth performance.

• International Journal of Computer Science & Network Security
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• v.22 no.5
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• pp.103-114
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• 2022

The Internet of Things (IoT) is one of the fastest technologies that are used in various applications and fields. The concept of IoT will not only be limited to the fields of scientific and technical life but will also gradually spread to become an essential part of our daily life and routine. Before, IoT was a complex term unknown to many, but soon it will become something common. IoT is a natural and indispensable routine in which smart devices and sensors are connected wirelessly or wired over the Internet to exchange and process data. With all the benefits and advantages offered by the IoT, it does not face many security and privacy challenges because the current traditional security protocols are not suitable for IoT technologies. In this paper, we presented a comprehensive survey of the latest studies from 2018 to 2021 related to the security of the IoT and the use of machine learning (ML) and deep learning and their applications in addressing security and privacy in the IoT. A description was initially presented, followed by a comprehensive overview of the IoT and its applications and the basic important safety requirements of confidentiality, integrity, and availability and its application in the IoT. Then we reviewed the attacks and challenges facing the IoT. We also focused on ML and its applications in addressing the security problem on the IoT.

• Korean Journal of Mathematics
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• v.22 no.1
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• pp.71-84
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• 2014

By using the multidimensional normal approximation of functionals of Gaussian fields, we prove that functionals of Gaussian fields, as functions of t, converge weakly to a standard Brownian motion. As an application, we consider the convergence of the Stratonovich-type Riemann sums, as a function of t, of fractional Brownian motion with Hurst parameter H = 1/4.

• The Pure and Applied Mathematics
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• v.22 no.2
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• pp.101-112
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• 2015

Alexseev's formula generalizes the variation of constants formula and permits the study of a nonlinear perturbation of a system with certain stability properties. In this paper, we investigate bounds for solutions of the functional nonlinear perturbed differential systems using the two notion of h-stability and $t\infty$-similarity.

• Communications of the Korean Mathematical Society
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• v.22 no.3
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• pp.383-389
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• 2007

In this paper we examine the hyperinvariant subspace problem for quasi-n-hyponormal operators. The main result on this problem is as follows. If T = N + K is such that N is a quasi-n-hyponormal operator whose spectrum contains an exposed arc and K belongs to the Schatten p-ideal then T has a non-trivial hyperinvariant subspace.

• Korean Journal of Mathematics
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• v.22 no.4
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• pp.711-723
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• 2014

We prove in this paper the absolute continuity of the representing measures of the hypergeometric translation operators $\mathcal{T}_x$ and $\mathcal{T}_x^W$ associated respectively to the Cherednik operators and the Heckman-Opdam theory attached to the root system of type $B_2$ and $C_2$ which are studied in [9].

• Proceedings of the Korean Magnestics Society Conference
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• 2004.06a
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• pp.22-22
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• 2004

• Bulletin of the Korean Chemical Society
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• v.22 no.6
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• pp.593-596
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• 2001

The reaction of [(2-N,N-dimethylaminomethyl) pheny] methylvinychlorosiane with t-BuLi in hexane solvent gave dimers, five isomeric 1,3-disilacyslobutanes which were weparated and charaterized. In trapping experiments with various trapping agents, no corresponding silene-trapping aduct was observed. We suggest that more important species for the formation of five isomeric dimers might be the zwitterionic species generated by virtue of intramolecular donor atom rather than the silene.

• East Asian mathematical journal
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• v.22 no.1
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• pp.93-109
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• 2006

The concept of intuitionistic fuzzy set was first introduced by Atanassov in 1986. In this paper, we define the intuitionistic(S,T)-fuzzy left h-ideals of a hemiring by using an s-norm S and a t-norm T and study their properties. In particular, some results of fuzzy left h-ideals in hemirings recently obtained by Jun, $\"{O}zt\"{u}rk$, Song, and others are extended and generalized to intuitionistic (S,T)-fuzzy ideals over hemirings.