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腰椎間板脫出 120例의 手術的 治療檢討 : Loves氏 法에 依한 A Report of 120 Cases Treated by Love's Operation
신준섭,윤승호 충남대학교 의과대학 지역사회의학연구소 1975 충남의대잡지 Vol.2 No.2
Result of operative treatment for 120 cases in 168 cases of Herniated Disc in the Lumbar spine treated in the years, Jan. 1968 through Dec. 1974, were reviewed and analyzed. 1. Of the 120 cases, 39 were found in the age of 20 to 30 years and the frequency was high in the male than female as 84 males and 36 females. 2. Sixty cases (50%) had unknown history, and 36 cases had sprain of the back and 24 cases had sliding down or trauma history. 3. Thirty eight cases(31.67%) had treated in Accupunture and 30 cases in Herb medicine. 4. Loves operation was performed in 112 cases and Love's operation with Hemi-laminectomy & H-graft in 8 cases. 5. Seventy three cases (60.83%) had hospitalization within 1 to 2 weeks, while 38 cases had 2 to 3 weeks hospitalization after operation. 6. Observation time after operation was within 1 to 3 years in 49 cases (40.83%), and 3 to 5 years in 36 cases, and 5 to 7 years in 24 cases. 7. Result of treatment was assessed according to Love's operation and 72 cases (60%) had excellent, 43 cases had good, 3 cases had fair and 2 cases had poor result.
Does Corporate Income Tax Matter on Stock Return?
Chune Young Chung 한국재무학회 2011 한국재무학회 학술대회 Vol.2011 No.05
This paper studies the theoretical and quantitative implications of corpo- rate income tax on asset pricing in a two-tree aggregate endowment economy. I nd a mechanism through which corporate income tax increases and de- creases portfolio riskassociated with rebalancing motive and introduce a new tax-related systematic risk. The tax a¤ects portfolio con guration, re- lated to nancial leverage, and plays an important role in determining price of stock since it generates both stabilization and destabilization on the volatility of return. A higher volatility is associated with a greater co-movement be- tween consumption growth and stock return. Stabiliazation e¤ect dominates destabilization e¤ect, and thus the tax relieve the risk.
Disclosure Effects of Korean Firms’ Divestment from China
Chune Young Chung,Justin Morscheck,Kyung Su Park 한국무역학회 2019 Journal of Korea trade Vol.23 No.5
Purpose - We examine the disclosures on foreign divestment from China by 77 Korean firms between 2007 and 2016 to identify the effects (and their determinants) on parent firm value. Design/methodology - We analyze how divestment affects firm value by examining the disclosure of divestment from China by Korean firms. Then, we examine the determinants of these disclosure effects using cross-sectional regression analyses. Findings - We find negative effects on parent firm value in the short and medium term, and both the KOSPI and KOSDAQ stock markets show negative correlations between foreign divestment and firm value. The parent firm’s financial condition and profitability and the reason for divesting are statistically significant determinants. Practical implications - Most Korean firms in China belong to the manufacturing industry. As a result, divestment signifies a loss of important manufacturing bases and assets. Originality/value - We analyze foreign direct divestment, which has not been studied in detail previously owing to a lack of data. In addition, this research is the first to compare the disclosure effects in the KOSPI market with those in the KOSDAQ market for the same period.
Chune Liu,Lele Wu,Ying Xue,Feng Liu,Shan Sun,Liming Wang 한국식품과학회 2018 Food Science and Biotechnology Vol.27 No.3
In this study, the total concentration and bioaccessibility of four metals (Zn, Se, Cd, Cu) in sea cucumbers (Apostichopus japonicus) before and after cooking were measured. The concentration of Zn, Se, Cd, and Cu were 22.24 ± 0.75, 0.75 ± 0.06, 0.32 ± 0.07, and 1.88 ± 0.09 mg/kg in raw cucumber, respectively. The contents of Zn, Se, and Cu in high-pressured samples were significantly higher than that in the raw sea cumber (p\0.01). The levels of Cd were all decreased after three thermal treatments. The intake of Zn and Cu increased in sea cucumber cooked by all thermal processes. While the bioaccessibility of Se and Cd decreased after cooking. A significant correlation was observed between the concentration and bioaccessibility of minerals. These data provide useful information for dietary risk assessments of minerals in sea cucumbers.
Chune Young Chung 한국재무학회 2012 한국재무학회 학술대회 Vol.2012 No.09
I examine the simultaneous associations between institutional ownership and capital structure of a firm. I find that a firm’s leverage decreases when institutional ownership increases. This result implies that a firm reduces its debt level as institutional monitoring substitutes for the external debt monitoring, and indirectly suggests institutional investors’ activism. More importantly, I also find that a firm’s suboptimal leverage increases when the institutional ownership increases, and institutional ownership decreases when a firm’s suboptimal leverage increases. This finding directly shows that institutional investors not only actively monitor the management but they also passively sell their shares when dissatisfied with the management. In addition, I find that the monitoring evidence on a firm’s leverage and suboptimal leverage are more pronounced when the institutional investors are less likely to have business relationships with a firm or the information asymmetry is high in the market.
The Effects of Antitrust Laws on Horizontal Mergers: International Evidence
Chune Young Chung,Iftekhar Hasan,Ji Hoon Hwang,Incheol Kim 한국경영학회 2022 한국경영학회 통합학술발표논문집 Vol.2022 No.8
This study examines how an antitrust law enactment affects merger and acquisition (M&A) performance, especially focusing on M&As occurred within industry. Using the staggered introduction of competition laws across 20 countries, we find an antitrust law adoption decreases an acquirer’s 5-day cumulative abnormal returns surrounding a horizontal merger announcement, compared to those in the benchmark groups. The law adoptions are effective in empowering a regulatory agency and deterring anticompetitive mergers and cross-company coordination. The subdued gain from a horizontal merger under antitrust laws is driven by the lower potential for post-merger monopolistic gain, evidenced by decreases in deal value, target book asset, and announcement returns of an acquirer’s industry-peers. The change in post-merger cost efficiency or agency problems under merger control does not explain our results. Overall, we find that antitrust policies are effective in deterring post-merger monopolistic gain, potentially improving customer welfare.
Liu, Chune,Wu, Lele,Xue, Ying,Liu, Feng,Sun, Shan,Wang, Liming 한국식품과학회 2018 Food Science and Biotechnology Vol.27 No.3
In this study, the total concentration and bioaccessibility of four metals (Zn, Se, Cd, Cu) in sea cucumbers (Apostichopus japonicus) before and after cooking were measured. The concentration of Zn, Se, Cd, and Cu were $22.24{\pm}0.75$, $0.75{\pm}0.06$, $0.32{\pm}0.07$, and $1.88{\pm}0.09mg/kg$ in raw cucumber, respectively. The contents of Zn, Se, and Cu in high-pressured samples were significantly higher than that in the raw sea cumber (p < 0.01). The levels of Cd were all decreased after three thermal treatments. The intake of Zn and Cu increased in sea cucumber cooked by all thermal processes. While the bioaccessibility of Se and Cd decreased after cooking. A significant correlation was observed between the concentration and bioaccessibility of minerals. These data provide useful information for dietary risk assessments of minerals in sea cucumbers.
A New High-Quality, Lodging Tolerant and High-Yielding Rice Cultivar "Jinpumbyeo"
Hae Chune Choi,Yeon Gyu Kim,Ha Cheol Hong,Hung Goo Hwang,Huhn Pal Moon,Sang Nag Ahn,Young Seop Shin,Jeom Ho Lee,Kuk Hyun Jung,Hong Yeol Kim,Sae June Yang,Young Chan Cho,Soo Yeon Cho 한국육종학회 2003 한국육종학회지 Vol.35 No.4
“Jinpumbyeo” is a new japonica rice cultivar developed from a cross between lodging tolerant semi-dwarf plant type, SR14703-60-5-GH1 and high eating quality cultivar Suweon353 by the rice breeding team of National Crop Experiment Station, RDA made in 1987