Hong JeongHa's Tianyuanshu and Zhengcheng Kaifangfa

홍성사,홍영희,김영욱,Hong, Sung Sa,Hong, Young Hee,Kim, Young Wook The Korean Society for History of Mathematics 2014 Journal for history of mathematics Vol.27 No.3

Tianyuanshu and Zengcheng Kaifangfa introduced in the Song-Yuan dynasties and their contribution to the theory of equations are one of the most important achievements in the history of Chinese mathematics. Furthermore, they became the most fundamental subject in the history of East Asian mathematics as well. The operations, or the mathematical structure of polynomials have been overlooked by traditional mathematics books. Investigation of GuIlJib (九一集) of Joseon mathematician Hong JeongHa reveals that Hong's approach to polynomials is highly structural. For the expansion of $\prod_{k=11}^{n}(x+a_k)$, Hong invented a new method which we name Hong JeongHa's synthetic expansion. Using this, he reveals that the processes in Zhengcheng Kaifangfa is not synthetic division but synthetic expansion.

노래부르기 음악프로그램이 정신질환자의 자아존중감과 대인관계에 미치는 영향

홍상희,윤지원,이재금,김지연 병원간호사회 2006 임상간호연구 Vol.11 No.2

Purpose: The objective of this study was to verify the effects of the Singing program for psychiatric patients on their self-esteem and interpersonal relationship, and to provide data for the nursing intervention that is necessary for making their life better. Method: The subjects were 10 in-patients with psychotic disorders at C university hospital in Seoul, from july 3 to September 18 im 2005, and the methodology was one group pre experimental- post experimantal design. The instrument for the measurement of self-esteem is Rosenberg Self-Esteem Scale(1973), which was translated by Chun Byung Jae(1974) and the measurement of interpersoral relationship is Schleim & Guerney Relationship Change Scale(1971) which was translated by Mun Seok Mo(1980) and revised by Chun Seok Gyun(1994). SPSS program was used for the analysis of the collected data, which were analyzed by the paired t-test and one-way ANOVA. Result: Singing therapy had an effect on improvement of the self-esteem, and seemed to be more effective as the frequency of the program increased. Singing therapy had an effect on improvement of the interpersonal relatinship, and seemed to ne more effecive as the frequency of the program increased. Comclusion: Singing therapy is found out to be effective program affecting the improvement of both the self-esteem and interpersonal relationship of the psychiatric patients. Therefore the nurses can use the Singing therapy as the nursing intervention for imtrovement of the self-esteem and interpersonal relationship of the psychiatric patients in clinical practice.

Chosun Mathematics in the early 18th century

홍성사,홍영희,Hong, Sung-Sa,Hong, Young-Hee The Korean Society for History of Mathematics 2012 Journal for history of mathematics Vol.25 No.2

1592년과 1636년 양대 전란으로 전통적인 조선 산학의 결과는 거의 소멸되어, 17세기 중엽 조선 산학은 새로 시작할 수밖에 없었다. 조선은 같은 시기에 청으로 부터 도입된 시헌력(時憲曆, 1645)을 이해하기 위하여 서양수학에 관련된 자료를 수입하기 시작하였다. 한편 전통 산학을 위하여 김시진(金始振, 1618-1667)은 산학계몽(算學啓蒙, 1299)을 중간(重刊)하였다. 이들의 영향으로 이루어진 조태구(趙泰耉, 1660-1723)의 주서관견(籌書管見)과 홍정하(洪正夏, 1684-?)의 구일집(九一集)을 함께 조사하여 이들이 조선 산학의 발전에 새로운 전기를 마련한 것을 보인다. After disastrous foreign invasions in 1592 and 1636, Chosun lost most of the traditional mathematical works and needed to revive its mathematics. The new calendar system, ShiXianLi(時憲曆, 1645), was brought into Chosun in the same year. In order to understand the system, Chosun imported books related to western mathematics. For the traditional mathematics, Kim Si Jin(金始振, 1618-1667) republished SuanXue QiMeng(算學啓蒙, 1299) in 1660. We discuss the works by two great mathematicians of early 18th century, Cho Tae Gu(趙泰耉, 1660-1723) and Hong Jung Ha(洪正夏, 1684-?) and then conclude that Cho's JuSeoGwanGyun(籌 書管見) and Hong's GuIlJib(九一集) became a real breakthrough for the second half of the history of Chosun mathematics.

연령증가에 따른 혈압요소들의 좌심실비대 및 관동맥질환과의 관련성

박재석,박창규,박미영,박재형,김용현,나진오,신성희,서순용,홍순준,박성미,임홍의,김응주,서홍석,오동주,노영무 대한순환기학회 2004 Korean Circulation Journal Vol.34 No.2

親環境農業을 위한 有機農業의 作付體系 確立에 관한 硏究

홍성찬,강희경,윤영상 공주대학교 자원과학연구소 2000 資源科學硏究論文集 Vol.8 No.-

This study was carried out to produce safe agricultural product and to improve the soil environment of crop cultivation using the reasonable cropping system in organic farming to the case study of organic farmhouse in Chungnam Hongdong area for sustainable agriculture. In the ratio of farming forms in these organic farmhouses, paddy field-upland field-greenhouse form, paddy field-upland field form, crop-livestock form and only greenhouse form were 23.8%, 23.8%, 23.8% and 19.0% respectively. In the greenhouse area of organic farmhouse, the 50% of total greenhouse number were 600~1,000 pyung(200~330a) and the 40% of total were 1,000~1,500 pyung(330~500a). In the area of upland field, the 80% of total upland field number were 500~1,000 pyung(167~330a). In the cropping systems of surveyed farmhouses, the number of crop-combination patterns were twenty-seven and the 96.3% of those was combined with vegetable. Vegetable-vegetable pattern, cereal crops-vegetable pattern and root and tuber crop-vegetable pattern were 44.4%, 18.5% and 14.8% respectively. Leguminous crop combined pattern was 7.4%, but patterns combined with barley or wheat did not exist. Among the vegetable combined patterns, leaf vegetables combined pattern, fruit vegetables combined pattern and root vegetables combined pattern were 66.7%, 31.0% and 22.2% respectively. Among the vegetable-vegetable patterns, the portion of fruit vegetables-leaf vegetables pattern was the highest and that of root and tuber vegetables-root and tuber vegetables pattern was the lowest. Among the twenty-seven crop-combination patterns, unreasonable crop rotation pattern was 50% over and especially the almost crop-combination pattern of greenhouse was unreasonable to crop rotation pattern. The farmhouse that control the amount of compost application by means of periodical soil analysis did not exist in this area.

치료저항 만성 정신분열증 환자에서 Clozapine과 Haloperidol의 치료효과에 대한 비교

이홍식,김찬형,이희상,남궁기,송동호,이영문,한은선 大韓臨床藥理學會 1993 臨床藥理學會誌 Vol.1 No.2

구연산을 첨가한 오디 설기떡의 품질 특성

홍정희,안상희,김미지,박금순,최상원,이순재 한국조리과학회 2003 한국식품조리과학회지 Vol.19 No.6

This study was carried out to investigate the characteristics of mulberry fruit seolgidduk. Four percent additions of mulberry were evaluated as the most suitable concentration for seolgidduk, in order to improve the color of gum metal gray and sour smell. Therefore, in order to improve the preference, citric acid was added. The acidity of mulberry fruit seolgidduk increased and its pH decreased significantly by increasing amount of citric acid. The moisture content of mulberry fruit seolgidduk showed no significant difference between the groups with added citric acid and the control of group. The L value decreased as the citric acid concentration increased. Color a and b (Ed-define 'a' and 'b') values increased significantly by increasing the amount of citric acid. The hardness, cohesiveness, springiness, gumminess and brittleness decreased as the citric acid was added. From the sensory evaluation, mulberry fruit seolgidduk with 0.01% citric acid added was the most preferred in taste, chewiness and overall acceptability. These results indicated that mulberry fruit seologidduk with 0.01% citric acid added showed the best quality.

「농촌 주부의 생활시간 구조에 관한 연구」

홍성희 啓明大學校 生活科學硏究所 1993 科學論集 Vol.19 No.-

The purpose of this study was to investigate the time used for daily activities by rural housewives, the attitude of their work role, and their life satisfaction. For these purpose, 182 housewives residing in Sunsan-Gun, Kyoung Sang Buk-Do were selected. The findings are summarized as follows; 1. The average time used on physiological activities were 7 hours and 49 minutes, farming labour time were 6 hours and 28 minutes, working time were 9 hours and 42 minutes, household labour time were 5 hours and 49 minutes and leisure time were 2 hours and 28 minutes. 2. They considered that their working are overloading, and the level of satisfaction to their work was low. 3. The attitude that they satisfied to their life was obvious, but considered that they adapt to their life more or less.

간질발작후 MRI 영상에서 뇌 종창을 보인 3예 보고

홍현숙,김대호,이혜경,박재성,박성진,조준희,차장규,백상현 순천향의학연구소 2004 Journal of Soonchunhyang Medical Science Vol.10 No.2

We report seizure induced brain swelling in three patients. MRI revealed a cortical, subcortical(3/3), and basal ganglia(2/3) high signal intensity on T2- weighted and FLAIR images. The lesion shows low signal on T1-weighted image, and enhanced after contrast administration. Follow up study after 27 days in one case revealed complete resolution of the lesion. The reversible MRI findings may be the results of a local brain swelling, breakdown of blood-brain permeability, and a defect of cerebral autoregulation during seizure activity. The transient nature of such findings have to be considered in the differential diagnosis such as reversible ischemia, migraine, inflammation and infection.

삼환계 항우울제(Dothiepin)가 우울증 환자의 수면에 미치는 영향 : 수면 다원 검사에 의한 연구 A Polysomnographic Study

홍승철,한진희,이성필,방승규 大韓神經精神醫學會 1998 신경정신의학 Vol.37 No.4

우울증환자군에서 삼환계 항우울제인 dothiepin 투여 후의 수면이 변화양성을 알아보며, 치료 후의 호전정도를 예측할 수 있는 치료 전과 치료 후의 수면변인을 조사하기 위하여 본 연구를 시행하였다. 수면상태는 수면다원검사를 실시하여 평가하였고, 우울증상의 심각도와 임상양상의 정도는 Hamilton 우울척도를 이용하여 평가하였다. 연구대상은 최소 14일 이상 약물을 투여 받지 않은 우울증 환자 16명(남자 7명, 여자 9명, 연령분포 23∼64세)으로 구성되었다. 수면다원검사는 약물을 투여하기 전과 약물투여 후 1주와 3주에 시행하여 다음과 같은 결과를 얻었다. 1) 항우울제 투여 1주와 3주 후 수면 연속성은 기준수면에 비하여 총수면 시간이 유의하게 증가하였고 수면잠재기는 단축되었으며, 수면도중 각성시간은 감소하였고, 수면효율은 증가되었다. 2) 항우울제 투여 1주와 3주 후 수면구조에서는 기준수면에 비하여 2단계 수면이 유의하게 증가하였다. 3) 항우울제 투여 1주와 3주 후 급속안구운동 수면은 기준수면에 비하여 유의하게 감소하였고, 급속안구운동 수면잠재기는 증가하였다. 4) 항우울제 투여 1주 후와 3주 후의 수면을 비교시 수면잠재기가 3주에 유의하게 감소된 외에는 수면 변인의 차이를 보이지 않았다. 5) 우울증상의 평가를 위하여 약물투여 1주 후와 3주 후에 시행한 Hamilton 우울척도 점수는 약물투여 전에 비하여 줄어들어 우울증상이 호전됨을 나타내었다. 6) 항우울제 투여 3주 후 치료반응이 좋았던 군의 수면특징은 기준수면에서 수면도중 각성시간이 증가된 경향을 나타내었고, 약물투여 1주 후의 수면에서는 4단계 수면의 양이 유의하게 감소되었다. 이상의 결과를 볼 때, 우울증환자에서 삼환계 항우울제인 dothiepin 투여 후의 수면변화는 치료초기에 나타났다. 기준수면에서 각성기간의 증가와 1주 후의 수면에서 4단계 수면의 감소는 약물치료에 좋은 반응과 관련된 수면변인으로 생각되었다. Objectives : This study was designed to investigate 1) sleep changes after antidepressant (dothiepin) treatment, and 2) sleep variables which seem to be associated with clinical response in the depressed patients. Methods : The subjects consisted of 16 patients who fullfilled the criteria for major depression by the Diagnostic and statistical Manual, (4th edition). Their sleep was recorded using polysomnography at the baseline and after one week and three weeks of dothiepin treatment. All subjects were further interviewed using Hamilton Rating Scale for Depression (HRSD) to rate the severity of their depression. High response to the drug was defined as a reduction of more than 50% of the HRSD score. Results : The results were as follows : 1) Depressed patients after dothiepin treatment showed more total sleep time(p=0.019), shorter sleep latency(p=0.05), less awake time(p=0.033), more sleep efficiency(p=0.018), more stage 2 sleep(p=0.002), less REM time(p=0.000), and longer REM sleep latency(p=0.004) than before treatment. 2) There were no differences in sleep variables between those who received 1 week and 3 weeks of dothiepin treatment except for the shortening of sleep latency after 3 weeks(p<0.05). 3) Depressive symptom scores on HRSD were reduced after 1 week and 3 weeks of dothiepin treatment as compared with the baseline. 4) High responders showed a tendency of increased wake time(p=0.054), while their stage 4 sleep decreased after 1 week of dothiepin treatment as compared with the low responders(p=0.0136). Conclusion : These results suggest that sleep of the depressed patients after dothiepin treatment tends to be normalized and sleep changes seem to appear early in the treatment phase. In addition, clinical response might be associated with greater wake time at the baseline and lesser stage 4 sleep after 1 week of dothiepin treatment.