원문 : 좌업 시간과 알코올 섭취가 30대 남자 사무직 근로자의 혈압과 혈관탄성에 미치는 영향

조봉오 ( Bong Oh Cho ),이인녕 ( In Yeong Lee ),정균근 ( Gyun Geun Jeong ),장창현 ( Chang Hyun Jang ) 한국운동생리학회(구 한국운동과학회) 2014 운동과학 Vol.23 No.3

조봉오, 이인녕, 정균근, 장창현. 좌업 시간과 알코올 섭취가 30대 남자 사무직 근로자의 혈압과 혈관탄성에 미치는 영향. 운동과학, 제23권 3호, 241-248, 2014. 본 연구의 목적은 일과 중 대부분을 좌업근무 형태로 업무를 수행하고, 스트레스로 인해 음주가 잦고, 운동이 부족한 30대 남자 사무직 음주자 15명을 대상으로 좌업 시간과 알코올 섭취가 혈압과 혈관탄성에 미치는 영향을 분석하여 사무직 근로자에게 건강관리에 필요한 정보를 제공하는데 있다. S대학 운동 생리학 실험실에서 사전 인적 사항과 설문을 작성하고, 신장, 체중, 채혈, 혈압, 혈관탄성, BMI를 측정하였다. 알코올 섭취 횟수, 섭취량, 좌업 시간, 그리고 음주 섭취 전과 후 및 시간대별 (10분, 40분, 60분) 혈압과 혈관탄성의 변화를 측정 분석한 결과를 요약하면 다음과 같다. 1) 평균 좌업시간이 9.87시간, 음주횟수 및 음주량은 월 평균 9.13회와 12.47잔 이였다. 2) 알코올 섭취횟수 및 섭취량에 따른 BMI, TC, LDL-C, HDL-C, 혈압과 혈관탄성 비교에서 알코올 섭취횟수에서 좌상지 혈관탄성은 통계적으로 유의한 차이를 나타냈다(p<.05). 3) 알코올 섭취 전, 후 비교 분석 결과 우상지와 좌상지의 혈관탄성에서 통계적으로 유의한 차이가 나타났다(p<.05). 4) 알코올 섭취 후 시간대별 우상지 혈관탄성은 통계적으로 유의한 차이를 나타냈다(p<.05). 이상의 결과를 종합해 볼 때, 좌업 시간이 혈압과 혈관탄성에 미치는 영향은 통계적으로 유의하게 나타나지 않았고, 알코올 섭취는 혈관탄성에 통계적으로 유의한 차이를 나타냄을 알 수 있었다. 따라서 이는 직장생활의 스트레스를 음주로 해소하는 경향이 있음을 보여주며 건강에 부정적인 영향을 주고 있음을 알 수 있었다. 또한, 신체가 음주에 적응되어 실험 시 섭취한 적은 양(1/2병)은 1회 12.47잔에 비해 혈압과 혈관탄성에 큰 영향을 미치지 못한 것으로 사료된다. Cho, Bong-Oh, Lee, In-Yeong, Jeong, Gyun-Geun, Jang, Chang-Hyun. Effects of Sedentary Occupation Time and Alcohol Intake on Blood Pressure and Vascular Compliance in 30s Male White-Collar Workers. Exercise Science, 23(3): 241-248. 2014. The purpose of this study was to examine effects of duration of sedentary office work and alcohol intake on blood pressure and vascular compliance in male subjects who were office workers aged between 30 to 39 and frequently drink alcoholic beverages to cope with their stress without exercising for health. The study was to provide health-related information necessary for white-collar workers. We collected data of demographic information, height, weight, blood sample, blood pressure, vascular compliance, and BMI from 15 subjects in S University`s Exercise Physiology Laboratory, and analyzed the frequency and amount of alcohol intake, duration of sedentary work, and changes in blood pressure and vascular compliance at diffident time points (10, 40, and 60 minutes post drinking) from baseline. I t was found that the average time of sedentary work was 9.87 hours, drinking 9.13 times a month on average, 12.47 glasses of alcohol beverages per drink. In comparison of BMI, TC, LDL-C, HDL-C, blood pressure and vascular compliance upon the frequency and amount of alcohol intake, the upper left limb`s vascular compliance had a statistically significant difference (p<.05). In the result of the comparative analysis of pre-and post-drinking, vascular compliance was significantly different in the upper right and left limbs (p<.05). Vascular compliance in the upper right limb after drinking significantly changed (p<.05). As a result, the duration of sedentary work had no statistically significant difference in blood pressure and vascular compliance. T he vascular compliance after drinking h ad a statistically significant difference. This suggested that the result was an index that shows the trend of the office workers releasing their work stress by drinking alcoholic beverages, and that drinking had negative impacts on them. In addition, a small amount of intake (a half bottle) at the test time, after the body was adjusted to drinking, compared with 12.47 glasses per intake, had no great impacts on blood pressure and vascular compliance.

방광의 염증성 가종양 1례

정영봉,배준,권명훈,김상익,김경수 大韓泌尿器科學會 2001 Korean Journal of Urology Vol.42 No.3

여수국가산업단지 인근 지역 대기오염물질 농도에 영향을 미치는 요인분석

김민영,변정훈,이영훈,이건영,한지은,이예림,임지현,장봉기 순천향대학교 기초과학연구소 2022 순천향자연과학연구 논문집 Vol.28 No.1,2

Eight monitoring stations in the Yeosu National Industrial Complex will determine the concentration of air pollutants measured every hour in 2019, analyze what factors affect them, and how they correlate with the air pollutant measurements. Six air pollutants (SO2, NO2, O3, CO, PM-10 and PM-2.5) measured at eight monitoring stations around Yeosu National Industrial Complex (Seogang-dong, Wolnae-dong, Munsu-dong, Yeocheon-dong, Deokchung-dong, Hwayang-myeon, Yulchon-myeon, Samil-dong) the measurement data for each hour of the year were downloaded to analyze the concentration by weather condition, time zone, season, separation distance from Yeosu Industrial Complex, and separation distance from Gwangyang Industrial Complex. SO2, NO2, and CO concentrations were significantly higher in winter, significantly lower in summer, and O3, PM-10, and PM-2.5 concentrations were significantly higher in spring. SO2, CO, PM-10, and PM-2.5 concentrations were significantly higher between 10 a.m. and 12 p.m., NO2 concentrations were significantly higher between 7 a.m. and 9 a.m., and O3 concentrations were significantly higher between 13 p.m. and 15 p.m.(p<0.001). The concentration of air pollutants (SO2, NO2, CO, PM-10, PM-2.5) excluding O3 was found to have a negative (-) correlation with weather condition, and in the case of O3, it was found to have a positive (+) correlation with PM-10, PM-2.5, temperature and wind speed. It was confirmed that the concentration of air pollutants emitted from the Yeosu National Industrial Complex differs depending on the season, time and distance to the industrial complex. This study aims to establish measures to minimize health damage to residents living relatively close to the industrial complex and contribute to the establishment of management and response measures according to the properties of substances to reduce the concentration of air pollutants in the future.

극한개념을 사용하지 않은 대수함수의 도함수

고봉수,현태영 濟州大學校 師範大學 科學敎育硏究所 1995 科學敎育 Vol.12 No.1

The definition of the derivative for real valued algebraic functions de-fined on an interval is introduced without using the concept of limit. With the definition, the derivatives and the linearity of derivative for a class of algebraic functions of special form are obtained by geometric property of multiple roots of algebraic equations, by the geometric concept of func-tions of the first degree and by the factorization, etc.

논 잡초 올챙이고랭이의 화학적 방제

노영덕,이민호,이봉근 경희대학교식량자원개발연구소 2006 硏究論文集 Vol.25 No.-

우리나라의 벼 재배지역에서 최근 그 발생량이 증가 하여, 문제잡초로 되고 있는 올챙이고래이의 효과적인 방제를 위하여, 토양처리 및 경엽처리제초제들의 효과를 시험하였던 바, 그 결과는 다음과 같다. Sulfonylurea계 토양저리 제초제들은 Azimsulforon을 제외하고는 그 방제효과가 우수하였는데, 이들 제초제들은 올챙이고랭이 3~4엽기까지 훌륭한 방제 효과를 나타내었다. 기타 토양처리 제초제들의 경우, Simetryn을 제외하고는 그 방제효과가 미흡하거나, Pretilachlor나 Mefenacet와 같이 발아초기에만 효과가 인정되는 것들이었다. Simetryn의 경우에는 올챙이고랭이 3~4엽기 때까지 효과적인 방제가 가능하였다. 경엽처리의 경우 2,4-D나 graminicide들은 방제효과가 낮았고, Bentazone과 Bentazone 합제들은 우수한 방제효과를 나타내었다. Scirpus juncoides Roxb. is a quite recent problem paddy weed in Korea, but is rapidly wide spreading around the country, especially because it is one of the sedges which are hard to control chemically. For the reason, wide spectrum of paddy herbicides, both soil and foliar applied, were evaluated for the effective control of the problem weed. The most of the sulfonylurea herbicides tested have been effective when treated until 2 to 4 leaf stages except Azimsulfuron. In the other group of soil applied herbicides, other than sulfonylureas, only Simertryn was found effective for the control. Pretilachlor and Mefenacet were also good in the case of pre-emergence treatments, but they could not control the weeds when they were already germinated. Among the foliar applied herbicides, Bentazone and Bentazone mixed formulations appeared effective for the control of problem weed, Scripus juncoides.

고랭지 성토지 배추-호맥 작부체계하의 토양개량이 배추생육에 미치는 영향

허봉구,노영덕 한국국제농업개발학회 2003 韓國國際農業開發學會誌 Vol.15 No.2

고랭지의 모재토를 성토한 포장에서 관행구, 화학성개량구, 제오라이트구 등 3개처리를 두고 2년간 배추와 후작물로 호맥을 재배하면서 배추 생육과 수량 및 토양 특성 변화를 조사한 결과를 요약하면 다음과 같다. 1. 성토시 사용한 토양은 양질사토로서 유기물과 인산함량이 매우 낮은 척박한 토양이었다. 2. 배추의 지상부 생육은 제오라이트구와 화학성개량구가 좋았으며 배추 수량도 관행구에 비하여 16.6~24.6% 증수되었다. 3. 배추 수확 후 토양 이화학성은 시험 전에 비해 점차 증가하였으며 호맥재 배로 토양유기물과 인산함량 증가가 컸다. 4. 호맥은 배추 정식 1주일전에 경운, 매몰하였으며 그 효과는 유기물함량 5g/kg 정도 지력증진효과가 있었다. This study was carried out to investigate the changes of crop growth and soil properties under chinese cabbage - rye cropping system in highland mounding-soil. Experimental plots were designed with control, chemical improvement and zeolite+chemical improvement plots from 1999 to 2000 year. Mounding soil were low in soil organic matter and phosphate contents, and that soil texture was loamy sand soil. The growth and yield of chinese cabbage in the chemical improvement and zeolite plots were higher than that of control by 16.6~24.6%. After harvesting, the contents of soil properties increased than those of experiment before. By rye cultivation, increasing ratios of soil organic matter and phosphate contents were higher than other properties. Rye residues were buried and tilled before chinese cabbage transplanted at 1 week. Buried rye residues increased by 5g/㎏ to soil organic matter contents.

CNUOS의 원형 설계

황영원,김봉환,이광일,김상하 충남대학교 자연과학연구소 1993 忠南科學硏究誌 Vol.20 No.1

An operating system is program modules within a computer system that govern the control of equipment resources such as processors, main storage, secondary storages, input/output devices, and files. CNUOS is a research project on distributed operating systems being carried out at Chungnam National University. Its goal is to investigate capability-based, object oriented systems and to build a working prototype system to use and evaluate. In this system, user-level server processes provide functions that have been traditionally provided by the operating system. This approach leads to a small(hence more reliable)kernel and makes it easier to provide, modify, and test new services. In this paper, The kernel prototype of CNUOS will be proposed.

요관결석에 대한 요관경하 배석술의 임상경험

정영봉,노준화,김상익 全南大醫大 2000 전남의대학술지 Vol.36 No.4

격막형 액막에 의한 코발트 이온 및 니켈이온의 분리

金春泳,鄭奉佑,李鉉哲 全北大學校 1993 論文集 Vol.35 No.-

The separation of the cobalt ion and nickel ion was carried out which was based on the principle of coupling facilitated transport. The principle of coupling facilitated transport was developed and validated by predicting the cobalt ion and nickel ion fluxes through membrane as a function of hydrogen ion concentration in the feed solution, carrier concentration in the membrane, and content of metals ion in the feed solution, flow rate of the feed solution and acid concentration in the stripping solution. Diffusion coefficients of Co-di(2-ethyl hexyl) phosphoric acid and Ni-di(2-ethyl hexyl) phosphoric acid through polytetrafluroethylene membrane were 1.2×10^7㏖/sec and 5.5×10^8㏖/sec, respectively.

미생물을 이용한 Gellan Gum 생성의 Kinetic에 관한 연구

金春永,鄭奉佑,張光燁,李銀美 全北大學校 1992 論文集 Vol.34 No.-

Polysaccharides produced microbially, have shown themselves to be commercially significant. The reasons for the commercial exploitation of these microbial polysaccharides is because of their unique physical and consistant chemical properties and regularity of supply. Gellan gum is a recently discovered extracellular polysaccaride. This is an anionic heteropolysaccharide that forms viscous solutions and can under certain conditions, form thermoreversible gels with characteristics similar to those formed by both carrigeenan and agar. The aspect of Gellan gum produced by Pseudomonas elodea were investigated under various concentration of carbon sources and nitrogen sources. Sucrose and glucose are used as carbon source, and Bacto-peptone, Promosoy and (NH_4)_2SO_4 are used as nitrogen source. The maximum Gellan gum production was obtained in the culture medium 30.0g/L glucose, 0.6g/L Promosoy at pH 6.6, 37℃. The molecular weight of Gellan gum was 5 × 10 exp (5) which was determined by gel permeation chromatography.