• 제목/요약/키워드: Ultrasound Energy

검색결과 188건 처리시간 0.024초

남자 대학생의 골밀도에 따른 생활습관과 식습관 및 영양소 섭취상태에 관한 연구 (The Study of Life Styles, Dietary Habits and Nutrient Intakes of Korean Male College Students Related to the Bone Mineral Density)

  • 김미현;배윤정;연지영;정윤석;승정자
    • Journal of Nutrition and Health
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    • 제38권7호
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    • pp.570-577
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    • 2005
  • The purpose of this study was to investigate the effect of bone mineral density on life styles, dietary habits and nutrient intakes among the male college students. The subjects were divided into four groups; $Q_1$ (calcaneus BMD < 25 percentile, n = 117), $Q_2$ (25 percentile $\le$ calcaneus BMD < 50 percentile, n = 118), $Q_3$ (50 percentile $\le$ calcaneus BMD < 75 percentile, n = 118) $Q_4$ (calcaneus BMD $\ge$ 75 percentile, n = 116). And they were asked about general characteristics, life style, dietary habit, and nutrient intake using questionnaire and 24-hr recall method. They were measured the bone mineral density of calcaneus using quantitative ultrasound. The average age of the subjects of the study was 23.0 yews and the average height, weight, and BMI were 174.7 cm, 69.0 kg, $22.5 kg/m^2$. The bone mineral density in calcaneus was $0.43 g/cm^2$ in $Q_1,\;0.50 g/cm^2$ in $Q_2,\;0.56 g/cm^2$ in $Q_3$, and $0.69 g/cm^2$ in $Q_4$ (p < 0.001). The results showed that $Q_1$ tended to have irregular exercise compared to the other three groups. Compared with $Q_1$ and $Q_2$, the frequency of skipping breakfast was lower in $Q_3$ and $Q_4$. Also the results showed that the $Q_4$ was significantly more often to drink coffee compared with the other three groups (p < 0.01). The mean daily energy intake was 2210.6 kcal ($88.4\%$ of RDA). The intake of energy, vitamin $B_2$, calcium, and zinc did not meet the Korean RDA. Also the $Q_2$consumed significantly lower intakes of protein (p < 0.05) and plant protein (p < 0.05) compared to the $Q_3$ and $Q_4$. The $Q_1$ and $Q_2$ consumed significantly lower intakes of vitamin $B_2$ (p < 0.01) compared to the $Q_3$ and $Q_4$. In conclusion, male student in lower bone mineral density appeared to have unhealthy life styles and dietary habits in terms of irregular exercise, high frequency of skipping breakfast and lower intakes of protein, vitamin $B_2$ showing a strong need proper education on meal practices and exercise habits for the bone health.

하수슬러지 가용화와 하수처리 운전조건 개선을 통한 하수슬러지 발생저감 연구 (Study on Sludge Reduction by Sludge Solubilization and Change of Operation Conditions of Sewage Treatment Process)

  • 최인수;정회석;한인섭
    • 대한환경공학회지
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    • 제31권12호
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    • pp.1113-1122
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    • 2009
  • 하수슬러지의 해양투기 배출규제에 대한 대체 처리방안으로, 하수슬러지의 초음파 가용화를 통한 재기질화와 하수처리 공정에 대한 개선을 통한 슬러지 발생량의 저감방안을 살펴보았다. 분리막 반응조(MBR) 실험을 통해 SRT를 점진적으로 SRT=5.1일에서 442일까지 증가시켰으며, 이때 반응조내 미생물의 평균 농도값은 $c_B$=3.4 $gTSSL^{-1}$에서 $c_B$=14.5 $gTSSL^{-1}$까지 증가하였다. 이때 기질제거율과 미생물의 성장량과의 관계를 나타내는 미생물 수율($Y_{B/S}$)는 SRT=5.1일 일때의 약 0.5-0.7에 비해 SRT=442일 일때 0.005-0.007로 저감되어, 직접적인 슬러지 발생량의 감소를 가져오게 되는 것을 확인하였다. 반응 조내 미생물 농도와 폭기효율과의 관계를 프로펠러 루프 반응조에서 교반속도에 따른 산소전달계수와 ${\alpha}$-factor의 변화로써 살펴보았다. 한편 슬러지에 대한 초음파 가용화는 에너지 투입량에 따라 가용화 효율이 증가하고, 가용화한 슬러지의 혐기성 소화효율은 가용화하지 않은 슬러지에 비해 바이오가스 발생량이 많았다.

결핵성삼출성뇌막염(結核性渗出性腦膜炎)의 중서의결합치료(中西醫結合治療) (중의잡지 중심)(中醫雜誌 中心) (The Combination therapy of Chinese traditional and Western medicine about Tuberculous exudative pleural effusion)

  • 최해윤;김종대
    • 대한한방내과학회지
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    • 제19권2호
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    • pp.438-450
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    • 1998
  • Pleural effusion means the inflammation of pleura which has a majority of respiratory disease. The main clinical manifestation is pleural effusional pain, dyspnea, cough, fever, etc. and at present the Tuberculous pleural effusion has the most frequency in which exists exudate in our country. And during studying oriental medical treatment about Tuberculous exudative pleural effusional patient, we found the clinical case about The Combination therapy of Chinese traditional and Western medicine at journal of traditional Chinese Medicine and considered it would be help in oriental medical treatment, so we adjust and report now. This study was performed by analyzing the six papers reported centering around the clinical case of The Combination therapy of Chinese traditional and Western medicine in journal of traditional Chinese Medicine published between 1990-1996. As these papers have no mistakes on diagnosis because it obtained pleurocentesis, tuberculin test positive reaction on choicing clinical case, definite results on X-ray, ultrasound as well as clinical basis, so it considers an apt conclusion. The results were as follows: 1. Western medical treatment uses chemical remedy same with pulmonary tuberculosis, and in case of tubercular pleuritis, it needs thoracic duct pyorrhea, and according to simple exudation also operates therapheutic pleural paracentesis. 2. In case of hydrothorax absorption about tuberculous pleural effusion, prescription of purge the heat accumulated in the lung and eliminate the retention of fluid with powerful purgatives shows considerable effects. 3. The latter period treatment of tuberculous pleural effusion needs Supplement qi and active the collaterals, Nourishing yin and clearing heat in addition to Supporting healthy energy to eliminate evils. 4. In case of curing tuberculous pleural effusion, The Combination therapy of Chinese traditional and Western medicine shows more considerable effect than single western medical treatment in absorption of hydrothorax. 5. In case of curing tuberculous pleural effusion, The Combination therapy of Chinese traditional and Western medicine shows more considerable effect than single western medical treatment in prevention of disease reappearance. 6. In case of curing tuberculous pleural effusion, The Combination therapy of Chinese traditional and Western medicine shows more considerable effect than single western medical treatment in vitality recovery at the latter period of disease.

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중부 지역 여대생의 커피 음료를 통한 열량 섭취 수준에 따른 영양 섭취 상태와 골밀도 평가 (Evaluation of Nutrient Intake and Bone Status of Female College Students according to the Calorie Consumption from Coffee Containing Beverage)

  • 연지영;배윤정;김명희;조혜경;김은영;이지선;김미현
    • 한국식품영양학회지
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    • 제22권3호
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    • pp.430-442
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    • 2009
  • This study was designed to investigate the relationship between the dietary intake according to calorie intake from a coffee containing beverage and the bone health status of 189 female collegians. The study was conducted through questionnaires, anthropometric checkup, 3-days food records and ultrasound measurement of calcaneus bone mineral density. Subjects were divided into three groups: students not drinking coffee(non-coffee group, N=56), students consuming <100 kcal daily from coffee(low-calorie coffee group, N=84), and students consuming $\geq100$ kcal of their total daily calories from coffee(high- calorie coffee group, N=49). There were no significant differences in weight, height, body mass index, body fat and calcaneus bone mineral density among the three groups. The low-calorie coffee group usually drank black coffee or instant coffee mix, and the high-calorie coffee group habitually drank coffee with milk or sugar syrup. There were no significant differences in the mean daily energy and food intake among the three groups. However, vitamin $B_2$(p<0.05) and calcium (p<0.01) intake in the high-calorie coffee group were higher than in the non-coffee group. Also, mean intake of sugars, fish and shellfishes, milks and beverages in the high-calorie coffee group were also significantly higher than in non coffee group(p<0.05). There was no significant difference in the Korean Dietary Diversity Score(KDDS) among the three groups. The main calcium source was milk in all three groups, and milk intake(total and included with coffee) was highest in the high-calorie coffee group. Although no significant difference was apparent between the high-calorie and non-coffee groups concerning anthropometric factors and calcaneus bone mineral density, consumption of coffee may have influenced food and nutrient intake. The results suggest that consumption of milk-supplemented coffee may be of nutritional benefit.

Phosphate가 제거된 단순배양액 중 아미노산의 첨가가 체외수정시술 후 임신율에 미치는 영향 (Effects of Amino Acids in Simple Phosphate-Free Media on Pregnancy Rate in Human In Vitro Fertilization and Embryo Transfer(IVF-ET))

  • 이지삼;홍정의;유승환;정구성;홍기언;전은숙;허영문;이종인
    • Clinical and Experimental Reproductive Medicine
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    • 제26권2호
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    • pp.239-249
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    • 1999
  • The role of amino acids in culture media for IVF-ET was examined in a total of 76 cycles. Patients received clomiphene citrate (CC) followed by hMG or GnRH-a combined with gonadotropins (FSH/hMG) for controlled ovarian hyperstimulation. Severe male (<$4{\times}10^6$ motile sperm) or age factor (>39 y) patients were excluded in this study. Pregnancy was classified as clinical if a gestational sac or fetal cardiac activity was seen on ultrasound. No significant differences were found in age, duration of infertility, follicle size, the level of $E_2$ on the day of hCG injection, the mean number of oocytes retrieved, total motile sperm count, fertilization rate and the mean number of embryos transferred between bHTF (without amino acids) and mHTF (with amino acids) groups. However, total ampules of gonadotropins were higher (p<0.01) in mHTF group than bHTF group. Significantly (p<0.05) more clinical pregnancies were recorded in mHTF group (13/30) compared with bHTF group (9/46). The multiple pregnancy rates were 11.1% in bHTF group and 7.7% in mHTF group. There were one ectopic pregnancy in mHTF group and one heterotopic pregnancy in bHTF group. Abortion rates were 22.2% in bHTF group and 7.7% in mHTF, respectively. The ongoing pregnancy or livebirth rate was significantly (p<0.05) higher in mHTF group (12/30) than bHTF group (7/46). These results suggest that the addition of amino acids in culture media is essential for culture of zygotes in vitro and adjustment of energy substrates in phosphate-free culture media appears to be beneficial for human IVF-ET procedure.

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강원 지역 일부 여대생 중 골밀도 정상군과 위험군의 식품섭취빈도법을 이용한 식품과 영양소 섭취 상태 비교 (Evaluation of Food and Nutrient Intake by Food Frequency Questionnaire between Normal and Risk Groups according to the Bone Mineral Density of Female College Students Residing in Gangwon Area)

  • 정혜련;윤선주;김미현
    • 대한지역사회영양학회지
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    • 제15권4호
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    • pp.429-444
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    • 2010
  • The purpose of this study was to examine the relationship between bone density and dietary intake for college women in their twenties. This study was performed on 160 female college students residing in Gangwon-do. It was conducted using ultrasound measurement of calcaneus bone density, anthropometric checkup and food-frequency questionnaires (FFQ) comprising 94 kinds of commonly consumed foods. Subjects were divided into two groups according to the T-score of bone density: a normal group (n = 113 persons, T-score ${\geq}1$) and a risk group (n = 47, T-score < 1.0). The average age of the subjects was 20.17 years and there was no significant difference between the two groups. Body weight and body fat percentage of the normal group were significantly higher than those of the risk group. The mean daily energy intake of the normal group was significantly higher than that of the risk group. Also, protein, fat, vitamin A, niacin, vitamin B6, folate, calcium, phosphorus, sodium, potassium, iron and zinc intake for the normal group were significantly higher than for the risk group. For the intake of the commonly consumed foods (or dishes) listed in FFQ, the mean daily intake amount of loaf bread, rice cake, potatoes, spicy beef soup, cucumber, seasoned spinach perilla leaves, crown daisy, stir-fried mushroom, sea mustard, beef rib, ham, chicken, mackerel, common squid, drink type curd yogurt, oriental melon and chocolate in the normal group was significantly higher than in the risk group. While, the mean daily intake of ramyun (instant noodle) and carbonated beverage by the normal group was significantly lower than that of the risk group. In conclusion, 20 something female college students showed a higher rate (26.9%) of the bone mineral density risk group (osteopenia or osteoporosis). For the risk group, the levels of nutrient and food intake were lower than in the normal group. Therefore, the bone density risk group needs to increase their nutrient intake and diet quality by increasing the intake of various foods. In addition, they should decrease the intake of foods, which are negative for skeletal health such as instant noodles and carbonated beverages.

무선 디지털청진기를 이용한 동물 진단시스템 (Animal Diagnosis System Using Wireless Digital Stethoscope)

  • 박기영;홍수미;이종하;박진호;정의붕
    • 한국통신학회논문지
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    • 제38B권9호
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    • pp.722-727
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    • 2013
  • 동물 의료는 병의 정도나 치료의 필요성에 관계없이 보호자의 의향이 앞서는 어려운 의료행위이다. 특히, 동물치료 중 심장 질환은 필요한 치료법의 결정이나 치료 효과의 확인에 대해서 동물 환자로부터 직접적인 답을 얻기가 어렵다. 그래서 동물 환자의 경우, 심장질환은 증상의 악화로 급변하거나 돌연사 등의 응급사태를 예측하고 그것에 대처하는 것은 거의 불가능하다. 심장 및 몸 안의 질환을 확인하는 1차 진단 방법은 청진이다. CT나 X-ray, 초음파 등의 최첨단 영상장비들을 이용하여 정확하게 측정할 수 있지만 장비가 비싸고, 이를 활용할 수 있는 전문인력이 요구되는 등 경제성으로 인해 2차 진단장비로 활용되어질 뿐 1차 진단을 위한 가장 좋은 진단도구로 여전히 청진기가 이용되어지고 있다. 본 논문에서는 수의사가 귀에 대지 않고 청진음을 분석하고 무선으로 어디서나 진단 할 수 있는 무선디지털 진단시스템에 대해 자세하게 서술하고, 이 시스템을 통해 진단되는 청진음에 대한 레벨교차율(LCR)과 에너지레벨을 통해 질병의 관계에 대해 새로운 개념의 진단시스템 환경을 제시한다.

골밀도 분류에 의한 정상군과 골감소증군 여대생의 식사관련 요인 비교 (Comparison of the Dietary Factors between Normal and Osteopenia Groups by Bone Mineral Density in Korean Female College Students)

  • 최지희;김순경
    • 한국식품영양과학회지
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    • 제37권7호
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    • pp.869-878
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    • 2008
  • 최대골질량에 근접할 수 있는 20대 여성들의 골격건강 상태는 중년기 이후 급증하는 골절이나 골다공증 발병과 밀접한 관련이 있다. 본 연구는 골격계질환 예방을 위하여 청년층의 식사지침 설정에 필요한 기초자료를 얻고자, 20대 여대생들의 골밀도를 측정하여 정상군과 골질환군으로 분류한 후, 신체계측과 식사섭취 상태 등을 조사 비교하고, 골밀도와 관련된 제 요인들을 분석하였다. 대상자들의 골밀도는 WHO에서 분류한 T-score값에 따라 정상군 59명($-0.42{\pm}0.45$), 골감소증군(골다공증 2명+골감소증 41명, $-1.52{\pm}0.41$) 43명이었으며, 골다공증과 골감소증을 나타낸 대상자는 전체 대상자의 약 42%로 나타났다. 평균 연령은 21.43세, 신장, 체중 및 체질량지수(BMI)는 각각 $161.25{\pm}4.77\;cm$, $56.05{\pm}9.20\;kg$과 21.5($kg/m^2$)이었으며 전체 대상자 중 60명(58.8%)만이 정상체중군에 속하였고 골감소증군에서 저체중자의 비율이 높게 나타났다. 정상군과 골감소증군의 신체계측치를 비교했을 때, 체중, 체단백질(protein mass), 무기질(mineral mass), 골격근량(skeletal muscle mass), 제지방량(fat free mass) 및 체수분(total body water) 함량 등이 골감소증군에서 유의적으로(p<0.05) 낮게 나타났다. 영양소 섭취 상태를 분석한 결과에서는 한국인영양섭취기준(KDRIs)의 75% 이하로 섭취하고 있는 영양소에는 비타민 C(73%), 엽산(49%), 칼슘(66%)과 칼륨(45%) 등이었고, 영양섭취기준에 비해 높게 섭취하고 있는 영양소에는 단백질(136%), 비타민B6(120%), 인(122%) 및 나트륨(충분섭취량의 256%) 등이었다. 체중 1 kg당 영양소섭취량을 분석 비교한 결과에서는 두 군간 유의적인 차이는 나타나지 않았으나, 정상군에 비해 골감소증군에서 에너지섭취량이 다소 높았고, 칼슘은 섭취량자체는 많았지만 동물성칼슘의 비율이 낮게 나타났고, 마그네슘(Mg)의 섭취량도 적게 나타났다. 식품군별 섭취량과 섭취빈도를 분석한 결과에서는, 정상군과 골질환군에서 섭취량에는 유의적인 차이가 없었으나 우유와 유제품의 섭취빈도가 골감소증군에서 다소 낮게 나타났다. Tscore와 관련성을 보인 신체계측지수는 체중(p<0.01), PIBW(p<0.05), 신장(p<0.01), 체단백질(p<0.001), 체지방량(plt;0.05), 무기질(p<0.001), 체수분(p<0.001), 근육량(p<0.001), 제지방량(p<0.001), BMI(p<0.05), 골격근량(p<0.001), 허리둘레(plt;0.05) 및 엉덩이둘레(plt;0.05) 등이었으며, 체중 1 kg당 영양소섭취량과의 관련성에서는 에너지, 단백질, 지질, 당질, 인, 나트륨 및 칼륨이 유의적으로($p<0.05{\sim}p<0.01$) 음(-)의 관련성을 나타내었고, 섭취빈도와의 관련성에서는 우유 및 유제품의 섭취빈도는 양(+)의, 버섯류의 섭취빈도는 음(-)의 유의적인(p<0.05) 관련성을 보였다. 이상의 결과에서 최대의 골질량에 근접해야하는 20대 여대생의 골격건강상태는 약 42%의 대상자가 골감소증군으로 나타나, 중년층의 골질환 발병율과 거의 같은 수준을 보였다. 따라서 이에 대한 예방대책이 조속히 이루어져야 할 것으로 생각된다. 골격건강 상태에 영향을 주는 요인으로는 적정 체중유지가 중요한데, 전체 대상자의 약 59%만이 적정체중 범위에 있었고, 골감소증군에서 저체중자의 비율이 높게 나타나 건강체중유지에 대한 교육도 강조되어져야 할 것이다. 식사관련요인에서는 각 영양소의 섭취량 자체도 중요하지만 특히 칼슘, 인, 나트륨, 칼륨 및 마그네슘등의 경우 각 영양소 상호간의 섭취 비율이 골격건강에 더 많은 영향을 주는 것으로 사료된다. 취약한 칼슘섭취상태를 보완하기 위한 주요 급원식품으로는, 우유와 유제품의 공급이 우선시되어야 함을 확인할 수 있었다.