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Search Results: 1 - 10 of 11271 matches for " Kyung-Won Kang "
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Infrared Two-Color Diagrams for AGB stars, post-AGB stars, and Planetary Nebulae
Kyung-Won Suh
Physics , 2015,
Abstract: We present various infrared two-color diagrams (2CDs) for AGB stars, post-AGB stars, and Planetary Nebulae (PNe) and investigate possible evolutionary tracks. We use catalogs from the available literature for the sample of 4903 AGB stars (3373 O-rich; 1168 C-rich; 362 S-type), 660 post-AGB stars (326 post-AGB; 334 pre-PNe), and 1510 PNe in our Galaxy. For each object in the catalog, we cross-identify the IRAS, AKARI, MSX, and 2MASS counterparts. The IR 2CDs can provide useful information about the structure and evolution of the dust envelopes as well as the central stars. To find possible evolutionary tracks from AGB stars to PNe on the 2CDs, we investigate spectral evolution of post-AGB stars by making simple but reasonable assumptions on the evolution of the central star and dust shell. We perform radiative transfer model calculations for the detached dust shells around evolving central stars in the post-AGB phase. We find that the theoretical dust shell model tracks using dust opacity functions of amorphous silicate and amorphous carbon roughly coincide with the densely populated observed points of AGB stars, post-AGB stars, and PNe on various IR 2CDs. Even though some discrepancies are inevitable, the end points of the theoretical post-AGB model tracks are generally converged to the region of the observed points of PNe on most 2CDs.
Study Protocol: effects of acupuncture on hot flushes in perimenopausal and postmenopausal women – a multicenter randomized clinical trial
Kun-Hyung Kim, Kyung-Won Kang, Hee-Jung Jung, Ji-Eun Park, So-Young Jung, Jun-Yong Choi, Sun-Mi Choi
Trials , 2008, DOI: 10.1186/1745-6215-9-70
Abstract: We aim to evaluate the effectiveness of Traditional Korean Acupuncture (TKA) in conjunction with usual care, compared to usual care alone, on hot flushes in perimenopausal and postmenopausal women in Korea.This study consists of a multi-center randomized controlled trial with 2 parallel arms. Participants included in the study will meet the following criteria: 1) a documented daily average hot flush score ≥ 10 for one week prior to the screening visit 2) not taking HRT and other pharmaceutical therapies which might affect hot flushes or other vasomotor symptoms.While maintaining usual care, the treatment group will receive acupuncture 3 times a week, for a total of 12 sessions over 4 weeks. The control group will receive usual care alone during the same period. Post-treatment follow-up will be performed one month after completing 12 sessions of acupuncture.This trial will provide evidence for the effectiveness of acupuncture as a treatment for hot flushes. The primary endpoint in both groups is a change in hot flush score from baseline to week 4 and/or week 8. As the secondary endpoint, we will employ the Menopause Rating Scale (MRS), a health-related quality of life questionnaire. Further analysis will examine the frequency, severity and difference in symptoms for daytime vs. nighttime hot flushes, sub-domain analysis of MRS, and participants' expectations of acupuncture treatment.Current Controlled Trials ISRCTN49335612Hot flushes are the most frequent climacteric symptom and a major cause of suffering in menopausal women [1,2]. Diminished overall quality of life, social distress and emotional embarrassment are also frequent complaints due to menopause-associated hot flushes [3].The prevalence of hot flushes varies according to ethnicity, region and cultural characteristics [4,5]. Most women experience hot flushes for 6 months to 2 years [4]. For many women, most menopause-related vasomotor symptoms including hot flushes tend to resolve spontaneously within a few
Market Segmentation, Price Disparity, and Transmission of Pricing Information: Evidence from Class A and H Shares of Chinese Dual-Listed Companies  [PDF]
Kyung-Won Kim, Yong Hyeon Kim, Chul W. Park, Hong-Ghi Min
Journal of Financial Risk Management (JFRM) , 2015, DOI: 10.4236/jfrm.2015.43011
Abstract: This paper examines the transmission of pricing information and the volatility of dual-listed stocks between class A and H shares of Chinese companies. First, using firm level data, we show that there is a large price discount for H shares relative to the A shares. Second, when we divide the firms into a high price disparity group and a low price disparity group, we find that the high price disparity group’s pricing information transmission is stronger than the low price disparity group during the pre-liberalization period (in terms of significant mean coefficients). Third, when we divide the entire sample period into a pre-liberalization period and a post-liberalization, we find that the mean value spillover is stronger during the post-liberalization period for the low price disparity group. Finally, we report that during the post-liberalization period, the volatility spillover increases from A shares to H shares while it decreases from H shares to A shares. This implies that there is an information advantage of H shares, disappearing with the liberalization of A shares.
Acupuncture for dry eye: a multicentre randomised controlled trial with active comparison intervention (artificial tear drop) using a mixed method approach protocol
Tae-Hun Kim, Jung Kang, Kun Kim, Kyung-Won Kang, Mi-Suk Shin, So-Young Jung, Ae-Ran Kim, Hee-Jung Jung, Seung-Deok Lee, Jin-Bong Choi, Sun-Mi Choi
Trials , 2010, DOI: 10.1186/1745-6215-11-107
Abstract: One hundred fifty participants with dry eye will be recruited into three independent hospitals from different areas: Korea Institute of Oriental Medicine, DongGuk University Ilsan Oriental Hospital and Dongshin University Gwangju Oriental Hospital. The number of participants required was calculated from the data of a previous, relevant study. These patients will be randomly allocated into acupuncture treatment or artificial tear groups. Either 17 acupuncture points (bilateral BL2, GB14, TE 23, Ex1, ST1, GB20, LI4, LI11 and single GV23) will be used 3 times a week or disposable artificial tear drops (Refresh Plus?, ALLERGAN) will be provided for use at least once a day for 4 weeks. The ocular surface disease index (OSDI), tear film break-up time (TFBUT), Schirmer I test, visual analogue scale (VAS) for self-assessment of ocular discomfort, general assessment (by both acupuncture practitioners and participants) and quality of life (QOL) through the Measure Yourself Medical Outcome Profile-2 (MYMOP-2) will be assessed for approximately 3-months for each study participant. In addition, qualitative study and cost-effectiveness of acupuncture treatment will be conducted.ClinicalTrials.gov (Identifier: NCT01105221).Dry eye is not a life-threatening disease, but it is one of the most common and irritating conditions in ophthalmology. Because of recent data on both the pathological mechanism and aetiology, the definition of dry eye has been changed from simple ocular discomfort (related to the deficiency or hyper-evaporation of tears) to a multifactorial disease (with ocular discomfort and visual disturbances, which are related to tear-film instability and both the hyper-osmolarity and chronic inflammation of the ocular surface) [1]. The overall prevalence has been reported to be between 5 and 35 percent in different populations [2]. The incidence is now increasing more rapidly than other ophthalmologic diseases such as cataracts, retinal disease and glaucoma [3]. This may b
Evaluation of wet-cupping therapy for persistent non-specific low back pain: a randomised, waiting-list controlled, open-label, parallel-group pilot trial
Jong-In Kim, Tae-Hun Kim, Myeong Lee, Jung Kang, Kun Kim, Jun-Yong Choi, Kyung-Won Kang, Ae-Ran Kim, Mi-Suk Shin, So-Young Jung, Sun-mi Choi
Trials , 2011, DOI: 10.1186/1745-6215-12-146
Abstract: We recruited 32 participants (21 in the wet-cupping group and 11 in the waiting-list group) who had been having PNSLBP for at least 3 months. The participants were recruited at the clinical research centre of the Korea Institute of Oriental Medicine, Korea. Eligible participants were randomly allocated to wet-cupping and waiting-list groups. Following the practice of traditional Korean medicine, the treatment group was provided with wet-cupping treatment at two acupuncture points among the BL23, BL24 and BL25 6 times within 2 weeks. Usual care, including providing brochures for exercise, general advice for PNSLBP and acetaminophen, was allowed in both groups. Separate assessors participated in the outcome assessment. We used the 0 to100 numerical rating scale (NRS) for pain, the McGill Pain Questionnaire for pain intensity (PPI) and the Oswestry Disability Questionnaire (ODQ), and we assessed acetaminophen use and safety issues.The results showed that the NRS score for pain decreased (-16.0 [95% CI: -24.4 to -7.7] in the wet-cupping group and -9.1 [-18.1 to -0.1] in the waiting-list group), but there was no statistical difference between the groups (p = 0.52). However, the PPI scores showed significant differences between the two groups (-1.2 [-1.6 to -0.8] for the wet-cupping group and -0.2 [-0.8 to 0.4] for the waiting-list group, p < 0.01). In addition, less acetaminophen was used in the wet-cupping group during 4 weeks (p = 0.09). The ODQ score did not show significant differences between the two groups (-5.60 [-8.90 to -2.30] in the wet-cupping group and -1.8 [-5.8 to 2.2] in the waiting-list group, p = 0.14). There was no report of adverse events due to wet-cupping.This pilot study may provide preliminary data on the effectiveness and safety of wet-cupping treatments for PNSLBP. Future full-scale randomised controlled trials will be needed to provide firm evidence of the effectiveness of this intervention.ClinicalTrials.gov: (Identifier: NCT00925951)Date of tr
A System for Improving the Management of the Lesion and Test Images of Patients  [PDF]
Sung-Bum Cho, Kyung-Won Jin, Jong-Soon Kim, Soo-Jin Huh, Segyeong Joo
Engineering (ENG) , 2013, DOI: 10.4236/eng.2013.510B035
Abstract:

Nowadays, almost every hospital utilizes picture archiving and communications system (PACS) and electronic medical record (EMR) system to manage patient’s data digitally. However, patient’s pictures taken by nurses or physicians to monitor lesions or various test results are not managed well in general. Although for some disease, these pictures provide meaningful information in diagnosis and treatment. In this paper, we propose a management system for these images to improve the accessibility and storability. To manage the images efficiently, the proposed methods utilized the PACS system in the hospital. After sending the image data of each patient to a local monitoring computer, the patient’s information, such as, name, age, male, and registration number were attached on the image. This file was then converted to a DICOM (digital imaging and communications in medicine) files and transferred to the PACS Server. The proposed system promises easy and convenient access on the images of lesions and various test results of patients to support fast and appropriate treatment.

The Number of Chains of Subgroups in the Lattice of Subgroups of the Dicyclic Group
Ju-Mok Oh,Yunjae Kim,Kyung-Won Hwang
Discrete Dynamics in Nature and Society , 2012, DOI: 10.1155/2012/760246
Abstract: We give an explicit formula for the number of chains of subgroups in the lattice of subgroups of the dicyclic group 4 of order 4 by finding its generating function of multivariables.
Symmetry Properties of Higher-Order Bernoulli Polynomials
Kim Taekyun,Hwang Kyung-Won,Kim Young-Hee
Advances in Difference Equations , 2009,
Abstract: We investigate properties of identities and some interesting identities of symmetry for the Bernoulli polynomials of higher order using the multivariate -adic invariant integral on .
A Note on the -Euler Measures
Kim Taekyun,Hwang Kyung-Won,Lee Byungje
Advances in Difference Equations , 2009,
Abstract: Properties of -extensions of Euler numbers and polynomials which generalize those satisfied by and are used to construct -extensions of -adic Euler measures and define -adic --series which interpolate -Euler numbers at negative integers. Finally, we give Kummer Congruence for the -extension of ordinary Euler numbers.
A Note on the q-Euler Measures
Taekyun Kim,Kyung-Won Hwang,Byungje Lee
Advances in Difference Equations , 2009, DOI: 10.1155/2009/956910
Abstract: Properties of q-extensions of Euler numbers and polynomials which generalize those satisfied by Ek and Ek(x) are used to construct q-extensions of p-adic Euler measures and define p-adic q- -series which interpolate q-Euler numbers at negative integers. Finally, we give Kummer Congruence for the q-extension of ordinary Euler numbers.
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