Fumigation activity and phytotoxicity of combination of phosphine and ethyl formate to Pseudococcus longispinus (Hemiptera: Pseudococcidae) and P. orchidicola on imported nursery plants

Sung Woo Cho,YeJin Kyung,Geun-Ho Park,Sun-Ran Cho,Byung-Ho Lee,Jeong-Oh Yang,Hyun Kyung Kim,Gil-Hah Kim 한국농약과학회 2018 한국농약과학회 학술발표대회 논문집 Vol.2018 No.10

Effects of age and comorbidity on survival vary according to risk grouping among patients with prostate cancer treated using radical prostatectomy : A retrospective competing-risk analysis from the K-CaP registry

Hah, Yoon Soo,Lee, Kwang Suk,Choi, In Young,Lee, Ji Youl,Hong, Jun Hyuk,Kim, Choung-Soo,Lee, Hyun Moo,Hong, Sung Kyu,Byun, Seok-Soo,Lee, Seung Hwan,Rha, Koon Ho,Chung, Byung Ha,Koo, Kyo Chul Williams & Wilkins Co 2018 Medicine Vol.97 No.42

<P><B>Abstract</B></P><P>A multicenter Korean Prostate Cancer Database (K-CaP) has been established to provide information regarding Korean patients with prostate cancer (PCa). We used the K-CaP registry to investigate the value of age and comorbidity for predicting cancer-specific mortality (CSM) and other-cause mortality (OCM) according to risk grouping.</P><P>The K-CaP registry includes 2253 patients who underwent radical prostatectomy (RP) between May 2001 and April 2013 at 5 institutions. Preoperative clinicopathologic data were collected and stratified according to the National Comprehensive Cancer Network risk criteria. Survival was evaluated using Gray's modified log-rank test according to risk category, age (<70 years vs ≥70 years), and Charlson comorbidity index (CCI) (0 vs ≥1).</P><P>The median follow-up was 55.0 months (interquartile range: 42.0–70.0 months). Competing-risk regression analysis revealed that, independent of CCI, ≥70-year-old high-risk patients had significantly greater CSM than <70-year-old high-risk patients (<I>P</I> = .019). However, <70-year-old high-risk patients with a CCI of ≥1 had similar CSM relative to ≥70-year-old patients. Survival was not affected by age or CCI among low-risk or intermediate-risk patients. Multivariate analysis revealed that a CCI of ≥1 was independently associated with a higher risk of CSM (<I>P</I> = .003), while an age of ≥70 years was independently associated with a higher risk of OCM (<I>P</I> = .005).</P><P>Age and comorbidity were associated with survival after RP among patients with high-risk PCa, although these associations were not observed among low-risk or intermediate-risk patients. Therefore, older patients with high-risk diseases and greater comorbidity may require alternative multidisciplinary treatment.</P>

INCOMES POLICY AND CREEPING INFLATION IN THE UNITED STATES

Hah, Sang Ho 서경대학교 사회과학연구소 1972 論文集 Vol.1 No.-

Agrarian Stagnation in Pre-War China

Hah, Sang Ho 서경대학교 사회과학연구소 1975 論文集 Vol.3 No.-

1. 농업생산이 지배적이면서 농촌 경제의 항구적인 개악과 농민의 극심한 빈곤을 경험해온 아세아적 농업국가들은, 과거 동양적 정체성의 표본으로 일컬어지던 전환기에 있어서의 중국농업의 피폐화 과정을 역사적으로 고찰할 필요를 느낀다. 2. 아세아적 농업국가의 일반적 병폐의 원인을, 흔히 경영의 영세성과 영농의 비과학성으로 인한 만성적인 저위 생산성에서 찾고저하는 편협한 경제적 접근방법을 지양하여, 토지소유의 집중과 고율의 지대 기타 영세농의 출혈을 항존시켜온 사회제관계와 지배계층간의 결탁 관계를 분석하는 사회학적인 접근방법이 여기에 시도되어야 할 것이다. 3. 빈농에 강요된 토지기근과 고율의 지대지출은 곧 토지독점과 방대한 지대수입 및 고도의 자본축적을 가능케하는 것이며, 전통적인 문벌과 관리 및 이에 합세한 군벌로 대표된 지배계층의 근대적 산업발전을 위한 재원을 충족시켜 줄 수 있는 것이었으나, 상대적으로 월등한 서구의 자본과 기술에 밀리고 일제의 침략 세력에 눌리어, 이들 농업자본은 이미 궁핍한 빈농과 농업종사자들로부터 보다 많은 수탈을 위하여 용이하게 전용되었다. 4. 따라서 농촌 노동력의 홉수를 위한 근대공업의 발전이나, 농업생산자체의 개량이나 과학화를 위한 농업자본의 재투입은 실현되지 못하였을 뿐만 아니라, 고도의 수탈로 지극히 궁핍해진 농촌종사자의 생산의욕을 극도로 저하시켜 농업생산성의 만성적인 저락을 결과하게 되는 것이다. 5. 이와같이 아세아적 농업의 전락현상을 흔히 「동양적 숙명론」이나 「아세아적 특수성」으로 설명하려 하거나, 간단히 「사회조사론」적 접근방식으로 파악하려는 종래의 일반적인 태도를 비판하면서 여기에 토지소유를 중심으로 한 전환기의 사회제관계를 폭넓게 역사적 측면에서 다루어 나가야 한다는 것을 지적한다.

Attraction Response of Spot Clothing Wax Cicada, Lycorma delicatula (Hemiptera: Fulgoridae) to Spearmint Oil

( Sang Rae Moon ),( Sun Ran Cho ),( Jin Won Jeong ),( Young Ho Shin ),( Jeong Oh Yang ),( Ki Su Ahn ),( Chang Mann Yoon ),( Gil Hah Kim ) 한국응용생명화학회 2011 Applied Biological Chemistry (Appl Biol Chem) Vol.54 No.4

Attraction responses of plant essential oils were investigated, and the electrophysiological response to nymphs and adults of spot clothing wax cicada (Lycorma delicatula) was confirmed. Of the ten tested oils, only spearmint oil was found attractive. In dose responses of spearmint oil, second to fourth instar nymphs, as well as adults, were significantly attracted to a dose of 5 μL; for nymphs, fourth instar nymph showed greatest attraction response (90.9%), and second and third instar nymphs showed mild attraction. At a dose of 10 μL, fourth instar nymphs and adults were significantly attracted to spearmint oil. Only fourth instar nymphs were attracted to spearmint oil at 2.5 μL. After analyzing spearmint oil using gas chromatography (GC) and GC/mass spectrometry, carvone constituent was found as a significant attractant for both nymphs and adults, except for first instar nymphs. Limonene did not show any attraction response. All constituents mixed with each other appeared to have an additive effect. In electrophysiological response to spearmint oil, antennae of only fourth instar nymphs and female adults responded to carvone. Therefore, spearmint oil may be effective as an attractant for control of L. delicatula populations. In a field test, fourth nymphs and female adults were highly attracted to 20 μL of spearmint oil. This is the first report on attraction response of L. delicatula to spearmint oil in the laboratory and the field.

SOCIOLOGY OF ECONOMIC KNOWLEDGE

Hah, Sang Ho 서경대학교 1974 論文集 Vol.2 No.-

1) 經濟學을 비롯한 社會理論을 흔히 科學的 知識이라 이름하는 所致는, 時間과 室間에 超然한 客觀妥當한 社會法則을 定立 할 수 있다는 確信에서 라기 보다는, 自然科學의 分析方法에 準하는 科學的 手續節次를 밟아 倫理的 價値觀에서 解放된 經驗的知識을 提示하려는 實證主義理念에 그 根據를 두고 있음이 分明하며, 2) 思想史的 側面에서 볼 때, 西歐의 精神世界를 한 때 支配하던 合理主義世界觀과 이것의 宿命的 歸結인 否定哲學에 正面으로 對抗하여, 「脫先驗」과 無比判的 現實肯定을 學問의 올바른 姿勢로 내세우던 實證主義 思潮의 바탕위에서 近代 社會學의 分科化와 正統經濟學의 軌道整備가 可能하였다고 보나, 3) 오늘날 社會科學 一般에 適用되는 實證的 接近方法이 그形式의 精巧함과 手續의 精密性에도 不拘하고, 엄청난 假定과 人爲的인 常數處理로, 分析의 範圍를 크게 萎縮시키고 또한 分析方向을 劃一的으로 몰아세우는 本來的 制約性을 免치못하고 있음이 自明하며, 특히 實證經濟學은 그 實用의 範圍를 지나치게 制限當할 수 밖에 없으며, 4) 重商主義로 부터 오늘에 이르는 經濟學의 傳統을 더듬어 볼 때, 實證 主義 軌道 위에서의 「脫價値」의 必要性과 歷史的次元에서의 非實證的-즉 非經濟的 要因分析의 必要性이라는 相兢的 磨擦 때문에 有數한 經濟學徒들이 그간 彷徨하고 苦憫해온 흔적을 찾기힘들지않은바, 5) 이러한 接近方法의 無理와 이로써 빚어전 知識의 脆弱性을 改善補完 코저 하는 대담한 學門的 努力이 最近에 이르러 活潑히 展開되고 있음을 보면서, 보다 높은 次元에서 社會過程 全般에 關한 相互諸關係를 幅넓게 다루려는 이른바, 凡學問的 接近方法의 諸構想과 이를 土臺로 한 成果를 더듬어 보고 將來의 方向을 더부러 摸索코저 한다.

Attraction Response of Spot Clothing Wax Cicada, Lycorma delicatula (Hemiptera: Fulgoridae) to Spearmint Oil

Sang-Rae Moon,Sun-Ran Cho,Jin-Won Jeong,Youn-Ho Shin,Jeong-Oh Yang,Ki-Su Ahn,Changmann Yoon,Gil-Hah Kim 한국응용생명화학회 2011 Applied Biological Chemistry (Appl Biol Chem) Vol.54 No.4

Attraction responses of plant essential oils were investigated, and the electrophysiological response to nymphs and adults of spot clothing wax cicada (Lycorma delicatula) was confirmed. Of the ten tested oils, only spearmint oil was found attractive. In dose responses of spearmint oil, second to fourth instar nymphs, as well as adults, were significantly attracted to a dose of 5 μL; for nymphs, fourth instar nymph showed greatest attraction response (90.9%), and second and third instar nymphs showed mild attraction. At a dose of 10 μL, fourth instar nymphs and adults were significantly attracted to spearmint oil. Only fourth instar nymphs were attracted to spearmint oil at 2.5 μL. After analyzing spearmint oil using gas chromatography (GC) and GC/mass spectrometry, carvone constituent was found as a significant attractant for both nymphs and adults, except for first instar nymphs. Limonene did not show any attraction response. All constituents mixed with each other appeared to have an additive effect. In electrophysiological response to spearmint oil, antennae of only fourth instar nymphs and female adults responded to carvone. Therefore, spearmint oil may be effective as an attractant for control of L. delicatula populations. In a field test, fourth nymphs and female adults were highly attracted to 20 μL of spearmint oil. This is the first report on attraction response of L. delicatula to spearmint oil in the laboratory and the field.

Fumigation activity and phytotoxicity of phosphine to control Pseudococcus longispinus (Hemiptera: Pseudococcidae) and P. orchidicola on imported nursery plants

Sung Woo Cho,YeJin Kyung,Geun-Ho Park,Sun-Ran Cho,Byung-Ho Lee,Jeong-Oh Yang,Hyun-Na Koo,Hyun Kyung Kim,Gil-Hah Kim 한국농약과학회 2018 한국농약과학회 학술발표대회 논문집 Vol.2018 No.10

Fumigation activity and phytotoxicity of phosphine to control Pseudococcus longispinus (Hemiptera: Pseudococcidae) and P. orchidicola on imported nursery plants

Sung Woo Cho,YeJin Kyung,Geun-Ho Park,Sun-Ran Cho,Byung-Ho Lee,Jeong-Oh Yang,Hyun-Na Koo,Hyun Kyung Kim,Gil-Hah Kim 한국응용곤충학회 2018 한국응용곤충학회 학술대회논문집 Vol.2018 No.10

This study investigated the fumigant activity of phosphine (PH3) on 2 kinds of mealybug (Pseudococcus longispinus and P. orchidicola (Hemiptera: Pseudococcidae)) adults and nymphs. All of the two mealybugs adults showed higher LCT99 values than nymphs, and P. longispinus showed higher tolerance than P. orchidicola in a 12 L desiccator. The absorption of phosphine on 13 nursery plants showed 12.2~41.5% difference depending on the plant. All of the mealybugs treated with phosphine 2 mg/L in 0.5 m3 fumigation chamber for 4 h showed 100% fumigant activity, except P. longispinus adult (approximately 90% at bottom part). However, when the exposure time was increased to 24 h, all of them showed 100% mortality. In the treatment of 10 m3 container, the 24 h treatment of phosphine showed 100% mortality to P. longispinus and P. orchidicola adults and nymphs. In all the experiments, no phytotoxicity of phosphine observed on 13 plants until 1 month after treatment.

Selection of irrigation fluid to eradicate free cancer cells during head and neck cancer surgery

Hah, J. Hun,Roh, Dong Hwan,Jung, Young Ho,Kim, Kwang Hyun,Sung, Myung‐,Whun Wiley Subscription Services, Inc., A Wiley Company 2012 Head & Neck Vol.34 No.4

<P><B>Abstract</B></P><P><B>Background</B></P><P>Free cancer cells can be spilled out from exposed tumors or ruptured tumors. We examined the cytocidal effect of various irrigation fluids on free cancer cells in an animal wound model mimicking head and neck surgery.</P><P><B>Methods</B></P><P>Cancer cell–contaminated wounds were made with C3H/HeJ mice and syngeneic squamous cell carcinoma (SCC VII) cells. Distilled water, 5% povidone–iodine, 1.5% H<SUB>2</SUB>O<SUB>2</SUB>, normal saline, and cisplatin were used to irrigate for 5 minutes. In vitro tumor growth assays were done with different concentrations and exposure times of povidone–iodine and distilled water.</P><P><B>Results</B></P><P>In the animal study, povidone–iodine significantly inhibited tumor growth. Povidone–iodine caused substantial inhibition of in vitro tumor growth, even at the concentration of 0.05%. After 30 seconds of exposure to 1% povidone–iodine, cancer cells were completely inhibited.</P><P><B>Conclusions</B></P><P>Povidone–iodine could be selected preferentially for the irrigation fluid during head and neck surgery, especially when the wound is suspected of cancer cell contamination. © 2011 Wiley Periodicals, Inc. Head Neck, 2012</P>