• Korean Journal of Pharmacognosy
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• v.43 no.2
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• pp.98-100
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• 2012

Korean folk medicine 'DeungNaMu' has been used mainly to cure apoplexy, pain of the stapes and tonic for weak man. With regard to the botanical origin of DeungNaMu, it has been considered to be Wisteria species of Leguminosae, but there was no pharmacognostical confirmation on it. To clarify the botanical origin of 'DeungNaMu', the anatomical characteristics of the branches of Wisteria species growing wild in Korea, Wisteria japonica and W. japonica forma. alba were studied. As a result, it was clarified that DeungNaMu was the branches of Wisteria japonica.

• Korean Journal of Pharmacognosy
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• v.39 no.1
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• pp.50-55
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• 2008

"Ga Si O Gal Pi" is one of the Korean crude drugs used mainly to cure arthritis, acute gastritis, and beriberi. With regard to the botanical origin of "Ga Si O Gal Pi", it has been considered to be Acanthopanax species of Araliaceae, but there was no pharmacognostical confirmation on it. To clarify the botanical origin of "Ga Si O Gal Pi", the anatomical characteristics of the branch of Acanthopanax species growing wild in Korea and Japan, A. chiisanensis, A. divaricatus, A. koreanum, A. rufinerve, A. senticosus, A. seoulense, A. sessiliflorus, A. sieboldiaum were studied. As a result, it was clarified that "Ga Si O Gal Pi" was the branch and rarely the bark of branch of Acanthopanax senticosus.

• Journal of Korean Medical classics
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• v.28 no.4
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• pp.79-97
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• 2015

Objectives : To research origin of the shape of vital gate(命門) in Yixuerunmen makes us understand more exactly what the author, Li Chan(李梴) thought vital gate shaped. Methods : It's shape described in his book was compared with pictures portraying it in Hua Tuo Xuan Men Nei Zhao Tu(華陀玄門內照圖), one of references of his book. Results : He reasonably modified its passing track, while explaining it according to the paintings in Hua Tuo Xuan Men Nei Zhao Tu. Vital gate, as he thought, was not an real organ like the other five viscera, but a cord or a tube similar to blood vessels. He believed its cord had long connections from pericardium to terminal of urethra, which went through pericardium upward, right kidney downward, right around terminal rectum down-frontward, and urethra in parallel outward. Conclusions : He had consistent understandings for vital gate to penetrate several different viewpoints, as based on pictures in Hua Tuo Xuan Men Nei Zhao Tu.

• Journal of Pharmacopuncture
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• v.24 no.4
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• pp.206-212
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• 2021

The aim of this study was to report on the improvement of shoulder pain resulting from disorders of the rotator cuff such as impingement syndrome and adhesive capsulitis, by manual acupuncture (MA) and pharmacopuncture (PA) following origin/insertion technique (OIT) of applied kinesiology (AK). Two patients were treated with MA and PA after OIT on shoulder muscles. The Numerical Rating Scale and the assessment of the Japanese Orthopedic Association scores were used to assess the pain, and ultrasound images were taken to compare treatment outcome. This study showed that MA and PA following OIT may be an effective treatment for impingement syndrome and adhesive capsulitis.

• The Bulletin of The Korean Astronomical Society
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• v.40 no.1
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• pp.79.2-79.2
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• 2015

The $M_{BH}-{\sigma}$ relation for galaxies is a stand-out illustration of the co-evolution of galaxies and their central supermassive black holes (SMBHs); however, how this co-evolution occurs and whether this relation holds for SMBHs of the early universe is still a matter of debate. In order to study this at higher redshifts, quasi-stellar objects (QSOs) are the best targets, due to their large sample size and effective $M_{BH}$ estimation. Nevertheless, it is difficult to examine properties of their host galaxies, simply due to the sheer brightness of the QSO itself. Here, we discuss a distinctive method in studying these QSO host galaxies, via gravitational lensing (GL). GL offers a unique approach in determining the mass of the lens object, in this case the host galaxy. QSOs from the SDSS quasar catalog were searched in the Hubble Space Telescope archives, and GL features around them were visually inspected. One such candidate is SDSS J1114-00; to increase its robustness as a GL system candidate, it was observed with the Inamori-Magellan Areal Camera & Spectrograph (IMACS) on the Magellan Baade Telescope at Las Campanas Observatory, to check whether the GL features have identical colors, meaning they are likely to originate from the same source. After confirmation of such GL systems, a sufficiently large sample will enable us to examine the $M_{BH}-{\sigma}$ relation at various redshifts, and in turn, investigate the co-evolution of SMBHs and their host galaxies.

• Journal of Korean Neurosurgical Society
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• v.63 no.1
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• pp.26-33
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• 2020

Glioblastoma (GBM) is a disease without any definite cure. Numerous approaches have been tested in efforts to conquer this brain disease, but patients invariably experience recurrence or develop resistance to treatment. New surgical tools, carefully chosen samples, and experimental methods are enabling discoveries at single-cell resolution. The present article reviews the cell-of-origin of isocitrate dehydrogenase (IDH)-wildtype GBM, beginning with the historical background for focusing on cellular origin and introducing the cancer genesis patterned on firework. The authors also review mutations associated with the senescence process in cells of the subventricular zone (SVZ), and biological validation of somatic mutations in a mouse SVZ model. Understanding GBM would facilitate research on the origin of other cancers and may catalyze the development of new management approaches or treatments against IDH-wildtype GBM.

• Journal of The Korean Astronomical Society
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• v.51 no.4
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• pp.89-110
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• 2018

Active Galactic Nucleus (AGN) variability can be used to study the physics of the region in the vicinity of the central black hole. In this paper, we investigated intra-night optical variability of AGN in the COSMOS field in order to understand the AGN instability at the smallest scale. Observations were performed using the KMTNet on three separate nights for 2.5 to 5 hours at a cadence of 20 to 30 min. We find that the observation enables the detection of short-term variability as small as ~ 0.02 and 0.1 mag for R ~ 18 and 20 mag sources, respectively. Using four selection methods (X-rays, mid-infrared, radio, and matching with SDSS quasars), 394 AGN are detected in the $4deg^2$ field of view. After differential photometry and ${\chi}^2$-test, we classify intra-night variable AGN. The fraction of variable AGN (0-8%) is statistically consistent with a null result. Eight out of 394 AGN are found to be intra-night variable in two filters or two nights with a variability level of 0.1 mag, suggesting that they are strong candidates for intra-night variable AGN. Still they represent a small population (2%). There is no sub-category of AGN that shows a statistically significant intra-night variability.

• The Bulletin of The Korean Astronomical Society
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• v.42 no.2
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• pp.40.2-40.2
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• 2017

At local, majority of galaxies in the dense environment, such as galaxy cluster, are red and quiescent with little star-formation (SF) activity. However, a different picture emerges as we go to high redshift: (1) there exist non-negligible fraction of galaxies still forming stars actively even in dense environment, and (2) there is a significant cluster-by-cluster variation in the SF properties, such as quiescent galaxy fraction. In this presentation, we show the results of our study about the variation of quiescent galaxy fraction among high-redshift (z~1) galaxy clusters, based on the multi-object spectroscopic (MOS) observation with IMACS on the Magellan telescope. Our main result is that galaxy clusters which are connected with significant large-scale structure (LSS), well beyond the cluster scale, are more active in their SF activity, i.e., the quiescent galaxy fraction for these clusters is lower compared to the clusters which are detached from LSS.

• Korean Journal of Food Science and Technology
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• v.40 no.6
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• pp.717-720
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• 2008

In this study, the geographical origin of beef was studied using an electronic nose based on mass spectrometer. Domestic beef was compared with the imported beef from New Zealand and Australia. Each sample was analyzed, and discriminant function analysis was used utilized for the discrimination of geographical origin. The $R^2$ and F-value of discriminant function analysis (DFA)1 were 0.4317 and 14.18, respectively when the samples were separated by geographical origin. The $R^2$ and F-value of DFA1 were 0.8960 and 22.98, respectively when the samples were separated by part of beef.

• Journal of Biosystems Engineering
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• v.42 no.4
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• pp.293-300
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• 2017

Purpose: This study aims to propose a method for fast geographical origin discrimination between domestic and imported rice using a visible/near-infrared (VNIR) hyperspectral imaging technique. Methods: Hyperspectral reflectance images of South Korean and Chinese rice samples were obtained in the range of 400 nm to 1000 nm. Partial least square discriminant analysis (PLS-DA) models were developed and applied to the acquired images to determine the geographical origin of the rice samples. Results: The optimal pixel dimensions and spectral pretreatment conditions for the hyperspectral images were identified to improve the discrimination accuracy. The results revealed that the highest accuracy was achieved when the hyperspectral image's pixel dimension was $3.0mm{\times}3.0mm$. Furthermore, the geographical origin discrimination models achieved a discrimination accuracy of over 99.99% upon application of a first-order derivative, second-order derivative, maximum normalization, or baseline pretreatment. Conclusions: The results demonstrated that the VNIR hyperspectral imaging technique can be used to discriminate geographical origins of rice.