• 제목/요약/키워드: Time To Live

검색결과 1,071건 처리시간 0.034초

Immunization of broiler chicks deprived food and water with live Newcastle disease vaccine(LaSota strain) by drinking water

  • Kwak, Kil-Han;Seo, Suk-Yul;Park, In-Bang;Ryu, Kyeong-Seon;Song, Hee-Jong
    • 한국동물위생학회지
    • /
    • 제24권4호
    • /
    • pp.379-382
    • /
    • 2001
  • To confirm the effect of food and water deprivation prior to Newcastle disease(ND) virus vaccination, three hundred chicks were divided into five groups with three replications. ND vaccine were sprayed to at 1 -day old chicks at commercial hatchery. Secondary and third vaccination was conducted at 2-week old and 24-day old chicks by LaSota strain. Control was conventionally vaccinated without withdrawing the food and water before or after vaccination. In group 2(G2) and 3(G3), LaSota strain was vaccinated to chicks before and after fasting the food and water for 3 and 2 hours, respectively. Group 4(G4) has the same fasting time of group 2, but supplemented the skim milk in vaccin dilution water. In group 5(G5), skim milk was added into group 3. Weight gain, feed intake and feed conversion were weekly measured for 5 weeks. Blood was collected from wing vein at 24 and 35 days of age. Each serum antibody level were measured by hemagglutination inhibition(HI) test. The average weight gain, feed intake, feed conversion of all group were not significantly different. Weight gain of each groups was 1910.30(control), 1875.28(G2), 1952.12(G4) and 1896.05(G5), respectively. Feed intake of all group was recorded at 3160.67(control), 3167.07(G2), 3189.48(G3), 3157.85(G4) and 3178.16(G5), respectively. The feed conversion of each groups was 1.655(control), 1.688(G2), 1.633(G3), 1.699(G4) and 1.676(G5), respectively. The HI titer of G4 was $ 5.50{\Pm}$1.40 and significantly higher than the other groups (p<0.05)(control : $4.36{\Pm}$1.87 , G2 : $5.18{\Pm}$2.14, G3 : $4.51{\Pm}$2.19, G : $5.28{\Pm}$1.58 at 35 days old. The results of this experiment indicated that two or three hours of fasting time before or after vaccination would be able to show the higher antibody level against ND virus.

  • PDF

치매노인을 돌보는 가족의 부담감과 우울반응에 관한 연구 (A Study on the Burdens and Depressive Reactions on Families who Cared for Patients Suffering from Senile Dementia)

  • 김영자;이평숙
    • 대한간호학회지
    • /
    • 제29권4호
    • /
    • pp.766-779
    • /
    • 1999
  • The purpose of this study was to investigate the relationship between the burden on families who live with an elderly person suffering from senile dementia, and the degree of their depression. There were 400 participants in this study, staying in the Seoul and Kyonggi areas from August 1, 1997 to February 28, 1998. Among the group, 100 participants took care of their patient at home, and another 300 participants left 100 patient at a day-care center, 100 sanatorium for senile dementia(asylum for helpless elderly people), 100 an infirmary for elderly people. Eventually 242 subjects out of the 400 were selected for the data analysis. The Zarit (1980) tool was employed to measure the degree of burden and Zung's(1965) “Self-Rating Depression Scale” was employed for the data analysis. The data was analyzed, and the percentage, t-test, ANOVA and Person's Correlation Coefficient were calculated. The results are as follows : 1. The average degree of burden that care-giving families felt was 49.13, which is somewhat high. 2. The average degree of depression that care -giving families felt was 51.95, which is relatively high. 3. The degree of burden was directly affected by the relation with the patient(F=2.48, P<.05), and the socio-economic status of the family(F=5.17, P<.05). Its also affected by the patient's educational status(F=2.17, P<.05). 4. The degree of depression of the family was significantly dependent on sex(t=-2.05, P<.05), age (F=2.99, P<.05), the relationship with the patient(F=3.65, P<.01), socio-economic status (F=7.74, P<.001), occupation(t=2.82, P<.01), health status(F=4.42, P<.01), and the place of residence(F=4.30, P<.01), The patient characteristics was significantly dependent on his/her educational status(F=3.85, P<.01), the period of suffering from senile dementia(F=2.47, P<.05), and smoking habit(F=6.17, P<.001). 5. The relationship between the degree of burden and that of depression reads r=0.43, which is statistically positive correlation in the high significant level. Upon analyzing the entire summation, most care-givers for elderly patients suffering from senile dementia lack time in caring for themselves. They also experience chronic fatigue and mental discomfort caused by the isolation from society, curtailment of certain activities, a sense of responsibility for their patients, and limits of their endurance in taking care of their patients over time. In conclusion, this study emphasizes the necessity for the following propositions : 1. In order to measure the degree of burden that Korean care-giving families undergo, a new tool must be developed on the basis of Korean culture. 2. An educational program based on the demands that care-giving families undergo must be developed, and its clinical effect also has to be examined.

  • PDF

충남 일부 지역의 자취와 자택 거주 대학생의 식습관과 영양 섭취 실태조사 (A Study on Eating Patterns and Nutrient Intakes of College Students by Residences of Self - Boarding and Home with Parents in Chungnam)

  • 최미경;전예숙;박민경
    • 대한영양사협회학술지
    • /
    • 제6권1호
    • /
    • pp.9-16
    • /
    • 2000
  • This study was carried out with 436 college students in Chungnam to investigate the relationship between residences and eating patterns of college students. The subjects were devided into two groups; those who live in self-boarding house(SB) and home with parents(HWP). The results were as follows. An average height, weight and BMI were 173.5cm, 66.0kg and 21.9 in male SB and 161.8cm, 50.2kg and 19.2 in female SB and 172.9cm, 67.6kg and 22.6 in male HWP and 161.2cm, 50.9kg and 19.6 in female HWP, respectively. There were no significant differences in the general characteristics between the SB and the HWP. The proportions of disease possession, vitamin/mineral supplements and physical exercise were not significantly different between two groups by residences. Sleeping time of the SB was longer than that of the HWP. And, frequency of cigarette smoking and alcohol drinking of the SB were higher than those of the HWP. The proportions of skipping meals in the SB were higher than those in the HWP. Approximately 40.42% of the SB tended to skip the breakfast, while 11.26% of the HWP did. It turns out that the most common reason why skipped meals was due to a eating habit(44.21%) in the SB and a lack of time(48.85%) in the HWP, respectively. The survey shows that while a great majority of the SB had lunch at campus(50.00%) and home(30.00%), the HWP ate lunch at campus(33.79%) and restaurant(33.33%). About 48% of the SB ate out more than 2-3 times a week compared to 42% of the HWP. The daily intakes of calcium, iron, vitamin A, vitamin $B_2$, niacin and vitamin C in the SB were significantly higher than those in the HWP. The percent RDAs of calcium and iron intakes were lower in female students than in male students. In conclusions, students of self-boarding had more dietary problems than students of home with parents. These results suggest that college students of self-boarding might have low ability of meal management. Therefore, nutrition education for college students is needed, and menus of campus cafeterias should be developed to meet the various needs of students.

  • PDF

감정표현의 직관성을 향상시키기 위한 색상을 이용한 감정모델의 개발과 적용 (Developing and Adapting an Emotion Model Using Colors for an Emotion Expression)

  • 여지혜;정명범;함준석;박준형;고일주
    • 한국HCI학회:학술대회논문집
    • /
    • 한국HCI학회 2008년도 학술대회 1부
    • /
    • pp.152-157
    • /
    • 2008
  • 인간은 감정을 인지하는데 있어 시각을 많이 사용한다. 인간은 감정을 인지하는데 있어 시각을 많이 사용한다. 빛에 의해 물체를 지가하며 색채의 한가운데 살아간다. 그만큼 색채는 우리 생활과 매우 밀접하게 관련되어있어 많은 시각정보 중에서도 색채에 대해 민감하게 받아들인다. 그래서 감정을 색채로 표현한다면 직관적으로 받아들일 수 있다. 본 논문은 색상과 감정 간의 관계연구를 통한 색상을 이용한 감정표현을 목적으로 한다. 정서를 동그라미 모형으로 표현한 Plutchik의 정서동그라미와 색상을 동그라미 모형으로 표현한 모세스 해리스의 해리스1은 기준 축을 중심으로 결합하여 다른 감정을 찾아내거나 색채가 만들어지기 때문에 색상과 감정 간의 관계연구를 하는데 사용하였다. 두 모델의 유사특징을 이용해 Plutchik의 정서동그라미에서 기본이 되는 감정을 선택해 비슷한 느낌과 특정을 가지는 색상을 모세스 해리스의 해리스1에서 찾아 감정을 매칭 시키는 방법으로 색상환을 이용해 감정을 표현한다. 색상과 감정 간의 매칭 만족도를 알아보기 위해서는 감정의 자극이 계속적으로 들어와 많은 감정의 변화를 실시간으로 확인할 수 있어야 한다. 비행슈팅 게임은 여러 가지 감정의 자극이 계속적으로 들어오고, 실시간으로 감정의 변화를 확인할 수 있기 때문에 본 연구를 적용하기에 적합하다. 따라서 비행슈팅게임의 캐릭터 색상으로 적용해보았다.

  • PDF

Effect of Postmortem Metabolic Rate on Meat Color

  • Park, B.Y.;Lee, J.M.;Hwang, I.H.
    • Asian-Australasian Journal of Animal Sciences
    • /
    • 제20권4호
    • /
    • pp.598-604
    • /
    • 2007
  • The current study was conducted to evaluate carcass characteristics, objectives and sensory meat qualities of Hanwoo longissimus muscle as affected by ultimate pH. Twenty-four steers and bulls ($556{\pm}53$ kg and $0.63{\pm}0.32$cm for live weight and backfat thickness, respectively) were used. As there was a linear relationship (r = 0.77) between lean meat color and ultimate pH, cattles were thus segregated into normal $pH{\leq}5.8$, Normal, n = 13) and DFD (pH>5.8, n = 11) groups. Normal pH group had significantly (p<0.05) higher carcass weight, marbling score and backfat thickness than those for high pH group, while fat color and lean meat color were inverse. In principle component analysis for co-ordinates of DFD and normal meats, fat color, lean meat color, texture, time to pH 6.2 and pH at 24 h postmortem were associated with the positive range of the first factor (67.5%) while backfat thickness marbling score and temperature at 24 h were placed in negative values. The rate constant of decline in pH (pH k) did not differ between the two groups, implying that initial pH (i.e., pH at slaughtering) differed between two groups. Contour mapping of pH k between pH at 1 and 24 h postmortem indicated that high pH k was related to lower pHs at 1 and 24 h postmortem. This suggested that the high pH cattles (i.e., DFD cattle) resulted from their own potential. Although the time to reach pH 6.2 was significantly (p<0.05) shorter for normal meat (i.e., 3.2 h) than that for DFD one (i.e., 19.8 h), there were no significantly differences in both WB-shear force and sensory attributes. Given that the experimental animals were sampled from a similar group, which implies a similar myoglobin pigment content, the current data suggested that pre- and post-slaughter animal handling likely had a significant effect on ultimate pH and consequently meat color of Hanwoo longissimus muscle, and also small animals with lower marbling score and backfat thickness had a higher risk for DFD meat.

디지털 케이블 방송 환경에서 개인 미디어를 위한 스트리밍 프로토콜 연구 (A Research on Streaming Protocol for User-Created Contents in Digital Cable Broadcasting environment)

  • 김성원;김정환;시장현;정문열
    • 대한전자공학회논문지TC
    • /
    • 제44권1호
    • /
    • pp.54-61
    • /
    • 2007
  • 최근 인터넷에서 많은 관심을 보이고 있는 동영상 개인 미디어(UCC:User-Created Contents)를 영상 콘텐츠의 기본적인 매체라 할 수 있는 TV상에서 직접 즐길 수 있다면 관련 미디어의 대중적인 효과는 배가 될 것이다. 디지털 케이블 방송에서 UCC와 같은 다양하고 많은 미디어 콘텐츠를 서비스하고자 한다면 현재의 OCAP 표준 환경에서는 RVOD(Real Video on Demand)와 동일한 서비스 모델을 가져야 하는 부담과 UCC 제공을 위한 방송 플랫폼별 인터페이스가 필요할 것이다. 이러한 문제점을 보완하기 위해 Return Path기반으로 RTP(Real-time Transport Protocol)을 이용해 기존의 VOD방식의 스트림 대역에서 분리하고 별도의 네트워크 VOD 프로토콜을 구현하고자 한다. 이는 라이브 방송환경과 동일한 인프라의 지속적인 확장보다 기존의 네트워크 환경을 이용하여 VOD 서비스를 위한 인프라에 많은 영향을 받지 않는 서비스가 가능할 수 있도록 하는 것이다. 따라서 본 논문에서는 RTP 사용을 위해 셋톱박스상의 다운로드 가능한 구조의 클래스 분석과 디코딩을 위한 전송 스트리밍 서버 및 트랜스코딩 과정의 설계에 중점을 두고 서술한다. 경량화 된 VOD 서비스 환경을 설계함으로써 방송환경 하에서 주문형 서비스의 효율적인 확장성을 보장할 수 있는 기회를 가져올 수 있을 것으로 기대한다.

서울시내(市內) 가주성(家住性) "바퀴"의 분포(分布)에 관(關)한 조사(調査) (Studies on the Cackroach Distribution from the House in Seoul City Area)

  • 차철환;함기선;안성규;박동우;구성회;한량일
    • Journal of Preventive Medicine and Public Health
    • /
    • 제2권1호
    • /
    • pp.77-80
    • /
    • 1969
  • In the cities nowadays, the dwelling conditions of Cackroach are provided by use of various kinds of construction material, installation of heating and cooling facilities that maintain moderate temperature, filthy sanitation, and lack of knowledge about insect as mechanical Vector. Cakroach is infectious disease Vector, and it proves to be of much importance in the public health. Considering such importance, the author has surveyed the distribution of Cackroach in the housing areas of Seoul City from May 1969 to the end of August 1969, and has come to the following conclusion: 1. House dwelling Cackroach collected in the City of Seoul are of two species, i. e. Blatella Germanica Linneaus and Periplaneta Japonica Karny. 2. Most of cackroach collected in Seoul are Blatella Germanica Linneaus and they are distributed in whole area of Seoul while that of Periplaneta Japonica Karny is distributed only in the limited area. 3. Dwelling places of Blatella Germanica Lineaus are in grog shop, Korean food restaurants, bakery shops, and patient rooms in hospitals. Many of them are found in tile kitchens and dining rooms of restaurants, and tearooms. They live in groups at older houses with much crack, warm and humid places. 4. For method of collection, the hand collection was the most effective. In trap collection during the day time, when the trap is placed at the narrow corners off the ground after confirming the dwelling places of cackroach, the match trap was more effective than the flask trap in collecting. In case of collecting during the night time, the flask trap was much more effective method than the match trap.

  • PDF

들깨속의 수분 및 수정 생리현상에 관한 연구 (Studies on Physiological Appearances of Pollination and Fertilization in Perilla)

  • 정찬식;오기원;이명희;배석복;이유영;안영섭;김정태;박금룡;서득용;김호영
    • 한국작물학회지
    • /
    • 제51권5호
    • /
    • pp.420-424
    • /
    • 2006
  • 1. 들깨의 화분은 인공수분 후 30분이면 화분이 발아되고, 1시간 후면 암술 하단부까지 화분관이 신장되었다. 2. 저온에서는 수술이 고사하거나 약벽이 터지지 않는 경우와 약벽이 터지고 약은 형성되었으나 화분관 신장 수가 매우 적은 비정상적인 양상을 관찰할 수 있었고 종자가 맺히는 화방수가 적었다. 3. 들깨속의 수정, 결실은 온도 및 품종에 따라 차이가 있었는데 조생종인 YCPL 25는 야간온도가 $15^{\circ}C$ 이하일 경우 크게 떨어졌으나, 만숙종인 YCPL 263은 야간온도 $10^{\circ}C$에서도 그 영향은 미미하였다. 4. 저온에서 종자가 맺히지 않는 꽃에 정상적인 화분을 인공수분 시키면 높은 결실률을 얻을 수 있었다. 5. 화기 발달과정 중 수분 및 수정 시기는 YCPL 177-1등 5품종은 꽃잎이 꽃받침보다 커지는 시기에 화분이 만들어지고 화분관이 발달하였으나, 푸른 차조기인 YCPL 205-1은 이 시기에 화분은 만들어졌으나 화분관은 71%만 발달되었다.

지렁이를 이용(利用)한 피혁(皮革) 슬러지의 퇴비화(堆肥化)에 관(關)한 연구(硏究)(I) (Vermicomposting of Leather Waste Sludge by Earthworm, Lumbricus rubellus (I))

  • 손희정;김형석;송영채;성낙창;김수생
    • 유기물자원화
    • /
    • 제4권2호
    • /
    • pp.77-85
    • /
    • 1996
  • 본 연구에서는 피혁슬러지의 부숙기간별 이화학적 변화를 측정하고 이를 근거로 지렁이의 생존율, 증체량, 부화율 등을 조사함으로서 지렁이를 이용한 안정화 및 처리, 처분 가능성을 평가하였다. 지렁이의 급이 조건에 적합한 피혁슬러지의 부숙기간은 산화환원전위(Eh), 알카리도에 대하여 각각 30일, 35일로 평가되었으며, 부숙기간동안 피혁슬러지의 pH 역시 초기 7.8에서 지렁이의 생육에 적합한 중성영역으로 점차 변화하는 경향을 보였다. 50일 부숙시킨 피혁슬러지의 이화학적 특성은 pH는 7.1, Eh는 85mV, 알카리도는 450ppm $CaCO_3$로 조사되었으며, 중금속함량은 여러 기준치를 만족하는 것으로 평가되었다. 50일 부숙시킨 피혁슬러지에서 지렁이 생존율은 $20{\sim}25^{\circ}C$의 생육온도에서 75%, 증체율은 230%, 부화율은 87%의 값을 보였다. 이상의 결과로부터 피혁슬러지는 최대 50일의 부숙기간을 거칠 경우 지렁이를 이용한 퇴비화가 가능한 것으로 평가되었다.

  • PDF

중국 대형정경체험극 '우견평요'의 성공요인 분석 (Success Factors Analysis of Chinese Large Scenario Experience Drama:'You Jian Ping-yao')

  • 왕이룬;장혜원
    • 지역과문화
    • /
    • 제8권3호
    • /
    • pp.27-48
    • /
    • 2021
  • 近年来, 中国的旅游演艺进行了一系列新项目的落成, 使旅游演艺产业的票房增加, 经济收入增高, 同时带动了旅游演艺的品牌形成, 而且拥有了一定的良好口碑, 对地域的文化传播, 经济发展都有一定的推动作用, 其中大型情景体验剧就是重点项目之一。大型情景体验剧是一种以模拟真实环境空间设计为空间, 使观众在视觉, 听觉, 嗅觉, 味觉和触觉等多位感官上进行主动式体验, 互动性极强的新戏剧形式。大型情景体验剧根据中国的传统文化, 地域文化, 流传已久的故事进行了改编, 又结合了灯光, 音效, 特效, 3D效果等高科技, 使观众的体验更加真实。《又见平遥》作为中国第一部大型室内情景体验剧, 以新的表现形式和创作手段来体现山西文化的博大精深。以情景体验剧的形式, 使观众更加直观地感受到了"山西人"的"山西情"和"山西德", 推动山西旅游业的发展, 带动山西地区的经济, 逐渐形成了完整的产业链。但也有剧情连接不顺及游客管理不当等局限, 可以通过更多的观众互动及指引完善演出效果。因此可以看出, 大型情景体验剧对地域在传统文化, 价值观的传播上, 旅游产业的发展上, 地域的品牌特色形成以及经济发展上都有很大的推动作用。通过这些, 可以看出大型情景体验剧对实景演出的发展具有创新思维内容, 逐渐形成产业链闭环以及拓宽宣传渠道等启示作用。