• 대한수의학회지
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• 제45권4호
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• pp.451-456
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• 2005

This study was carried out to investigate the skeletal measurement of the sternum and ribs at 60-, 90-, 120-day-old fetuses and neonates of Korean native goats. The total length and width of the ossified part of the sternebrae and ribs were observed at 60-, 90-, 120-day-old fetuses and neonates. The ossification of the ribs from the 1st to the 8th rib was observed in 60-day-old fetuses, but not observed from the 9th to the last rib. In the 90-day-old fetuses, all ribs were observed having ossified parts. In the 60-day-old fetuses, all sternebrae were not observed having ossified parts. All sternebrae were observed having ossified parts in the 90-day-old fetuses. In the 90-day-old fetuses, the length of the ossified parts of each sternebrae was longer than its width. In the 120-day-old fetuses and neonates, the length of the ossified parts of the 1st, 2nd, and 7th sternebrae was longer than its width, but the width of from the 3rd to 6th sternebrae was longer than the length.

• 한국작물학회지
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• 제69권1호
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• pp.61-69
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• 2024

남부지방(진주)에서 콩 생태형에 따라 적기파종 이후 파종 시기를 달리하였을 때 온도와 일장이 생육일수 및 수량에 미치는 영향을 조사한 결과는 다음과 같다. 1. 적기파종 이후 파종시기를 달리하여 파종하였을 때 모든 생태형에서 출현일, 개화소요일수, 전체 생육일수는 단축되었다. 2. 일장과 온도가 생육일수에 미치는 영향을 다중회귀분석으로 분석한 결과 파종~개화기까지 소요일수는 일장과 온도 모두 정의 상관이였고, 개화기~수확기까지 소요일수는 일장은 정의 상관, 온도는 부의 상관이 있었다. 3. 추정 회귀모형은 파종~개화까지 소요일수(Y) = 3.177 + (0.030 × (누적일장 + 적산온도)), 개화기~수확기까지 소요일수는 (Y) = 20.945 + (0.021 × (누적일장+적산온도))인 것으로 나타났다. 4. 수량은 적기파종에서 가장 높았고 적기파종 이후 늦게 파종할수록 수량이 급격히 감소하여 조생종은 7월 20일, 중만생종은 7월 10일 이전까지는 파종을 해야 급격한 수량감소를 피할 수 있을 것으로 보인다.

• 한국병원경영학회지
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• 제15권2호
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• pp.15-26
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• 2010

Stroke is a high-risk disease. The future of the medical environment is that the proportion of elderly population is increasing, the average life expectancy is being increased, while the fatal rate of stroke will be low. These situation will due to the financial burden on medical insurance. The most important factor that affects on the medical costs of stroke patients is the length of stay. In this study the mean length of hospital for stroke stay was 21.81days(37.97days for intracerebral hemorrhage, 18.89 days for cerebral infarction). The payment per case of stroke was 6.86 million won(12.6 million won for intracerebral hemorrhage, 5.72 million won for cerebral infarction). The payment per case of intracerebral hemorrhage was 2.2 times more than that of cerebral infarction. The payment in the day of hospitalization was the highest and until the second day medical costs was high. After the third day medical costs tended to decline, after that seemed to show an almost constant level. The length of hospital stay was found to be the most important determinant of inpatient charges for stroke. Accordingly rational management of the length of stay will be beneficial to health care consumers, providers, states.

• Asian-Australasian Journal of Animal Sciences
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• 제3권2호
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• pp.121-123
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• 1990

A CRD experiment with unequal numbers of hens were assigned at random to three treatment groups, 1) separation of chicks from hen at 21 days after hatching 2) separation of chicks from hen at 7 days and 3) hens were allowed to brood the chicks(no separation) up to 10 weeks of age, to determine the productive and reproductive performance of hens and their chicks. The mean cycle length (one hatch to another) was 72.8 days for the 7-day group as compared with 87.7 days and 83.4 days for the 21-day and the no separation groups, respectively (p<.0l). The broody period was 28.5 days for the 7-day group compared with 43.9 and 42.6 days for the 21 days and the no separation groups, respectively (p<.0l). The end of the broody period to the start of lay varied from 8.0 to 8.7 days. The number of eggs laid per clutch were 12.3 for the 21-day group, compared with 11.5 and 10.1 for the 7-day and no separation groups, respectively (p<.05). This is due to the longer (p<.05) clutch length of the 21-day group as compared with the 7-day and no separation groups, respectively. The chicks separated from the hens at 21 and 7 days were heavier (p<.01) than the chicks not separated from the hens. Mortalities were highest (p<.05) for chicks separated at 7 days as compared with chicks separated at 21 days and those not separated. We concluded that separating chicks at 7 days from the hen gave the shortest cycle length and broody period, separating the chicks at 21 days gave the longest clutch length and the maximum number of eggs, separating the chicks at 21 and 7 days resulted in heavier chicks and separating the chicks at 7 days resulted in the highest mortality.

• 근관절건강학회지
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• 제19권2호
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• pp.184-196
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• 2012

Purpose: This study aimed to investigate the degree of discomfort and to identify factors related with discomfort in patients wearing thigh-length compression stockings after orthopedic surgery. Methods: The participants were 105 patients wearing thigh-length compression stockings after orthopedic surgery at two hospitals in B city. Data were collected by the scale of discomfort in wearing compression stockings from July 5 to October 20, 2011. Results: Mean score of discomfort on wearing compression stockings was significantly higher at post-op. day 3 than day 1 (t=-2.30, p=.004). Discomfort scores for 'itching skin' and 'tightened leg' items were higher than others. There was significant difference in discomfort at post-op. day 1 according to surgical regions. The total score of discomfort at post-op. day 3 was positively related with the body mass index (r=.20, p=.041). Conclusion: Wearing thigh-length compression stockings to prevent deep vein thrombosis may cause physical and psychological discomfort for orthopedic surgical patients. To reduce discomfort in wearing compression stockings, nurses need to intervene discomfort and problems related to the stockings post-operatively.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2003년도 심포지엄
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• pp.38-42
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• 2003

This experiment was carried out the investigation of proper temperature of germination and growth responses of turf grass to different seedling ages. The results were as follows; 1. It was indicated that the proper temperature of germination was 30$^{\circ}C$ of day and 15$^{\circ}C$ of night, and day length was 14/10 hrs. 2. It was observed that 50 days of seedling was excellent with growth components such as number of tiller, length of tillering, number of node and internode length.

• 수산해양기술연구
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• 제13권1호
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• pp.7-10
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• 1977

In estimates of horizontal radiation, its values are determined by correlations among the length of day, noon altitude of the sun, and cloud amount. During winter from 1971 to 1974 in Korea, its correlations are calculated by empirical method are $$Q_o=0.0124 H_cT_d at clear day and$$ $$ Q_s=0.0124 H_cT_d (1-0.0C4^1.3) at cloudy day.$$ here$ Q_o, Q_s, H_c, T_d, C $ are horizontal radiation at clear day, horizontal radiation at cloudy day, noon altitude of the sun, length of day, and cloud amount. In applications of this equation at 10 stations in Korea, errors are less than 10% when cloud amount are less than 7, and 1O~20% when cloud amount are more than 7. But, according to Laevastu equation in same case, errors are 50% closely.

• 한국식물학회:학술대회논문집
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• 한국식물학회 1996년도 제10회 식물생명공학심포지움 고등식물 발생생물학의 최근 진보
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• pp.4-9
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• 1996

The majority of plants sense environmental signals, such as day length or temperature, to select their transition timing from vegetative growth t flowering. Here, we report the identification of a regulatory gene, OsMADS1, that controls the photoperiod sensitivity of flowering time. Constitutive expression of OsMADS1 in a long-day flowering plant, Nicotiana sylvestris, resulted in flowering in both short-day long-day conditions. Similarly, ectopic expression of the gene in a short-day flowering plant, N. tabacum cv. Maryland Mammoth, also induced flowering regardless of the day length. The transition time was dependent on the level of the OsMADS1 transcript in transgenic plants. These suggest that OsMADS1 is a key regulatory factor that determines the transition from shoot apex to floral meristem and that it can be used for controlling flowering time in a variety of plant species.

• 대한방사선기술학회지:방사선기술과학
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• 제44권3호
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• pp.253-260
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• 2021

The purpose of this study is to measure of growth and chlorophyl in barley exposed by X-ray. Barley seed was soaked 24h duration in water, then was classified into two group; pre-seed germination group (Pre-G) or post-seed germination group (Post-G). Also, divided as control subgroup and experimental subgroup(10Gy, 20Gy, 30Gy) in each group. Experimental subgroups were exposed by X-ray using linear accelerator (Clinac IS, VERIAN, USA). Expose condition was 6 MV X-ray, SSD 100 cm, 18×10 cm, 600 MU/min. Length was measured every day for 10 days and 10th day for weight. Chlorophyl was analyzed using spectrophotometer(uv-1800, shimadzu, japan) in l0th day. Data analysis was performed using SPSS ver 22.0(Chicago, IL, USA), ANOVA test (Dunnett_T3) between control subgroup and experimental subgroup in group and Independent T-test between Pre-G and Post-G in subgroup. In Pre-G, length of barley was significantly difference between control and 30Gy in 4th day (4.3 vs. 1.5, p= 0.011). Length of 30Gy was statistical difference with control(10th day; 14.4 vs. 6.3, p < 0.01), and was not in 10Gy or 20Gy in all day. In experimental subgroup, length was shorter as increasing radiation dose. In Post-G, length of barley was not difference statistically between control and experimental subgroup in first day, but more difference between two subgroup with increasing duration after exposing. Length of experimental subgroup was shorter significantly compared with control in 10th day, and no significant difference between experimental subgroup. Density of chlorophyl was increasing with increasing radiation dose in Pre-G and Post-G. Chlorophyl density of control was lower than 30Gy; 0.26ppm in Pre-G, 0.29ppm in Post-G). Growth and chlorophyl of barley was effected by X-ray. It is expected to be used as basic data for future radiobiological research.

• 한국작물학회지
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• 제40권3호
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• pp.308-313
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• 1995

본 시험은 미숙종자의 배배양을 이용한 보리의 세대촉진을 위하여, 재배조건(15/10, 25/15$^{\circ}C$)과 등숙기간에 따른 미숙종자의 형질을 조사하고 이들 형질들간의 상호 관계를 구명함과 동시에, 미숙종자의 배배양시 유묘의 생육 반응을 검토하였던 바, 그 결과를 요약하면 다음과 같다. 1. 출수 후 21일이 경과한 미숙종자의 배장은 이삭의 하부보다는 중상부가, 저온(15/10$^{\circ}C$)보다는 고온(25/15$^{\circ}C$) 조건에서 길었는데, 특히 저온 조건의 하부에서 짧았다. 그러나 부위별 차이보다는 생육 온도 조건에 따른 차이가 컸다. 2. 배배양 후 유아장과 근수 및 근장은 고온의 경우 이삭 부위별 차이가 적었으나, 저온조건에서는 중, 상부보다 하부의 생육이 현저히 불량하였다. 3. 등숙 기간에 따른 배장의 변리는 고온 조건에서 21일경에 최장에 이르러 더이상 신장하지 않았지만 저온 조건에서는 29일까지도 계속적으로 신장하여 저온 조건의 29일배가 고온 조건의 17일배와 유사한 경향치를 보였다. 4. 고온 조건에서 17일이 경과한 배의 배장은 입폭, 유아장, 근수 및 근장과 정의 상관이 인정되었으나, 21일이 경과한 것은 어느 형질과도 상관이 인정되지 않았다. 5. 미숙종자의 배배양을 이용한 세대촉진시에는 25/15$^{\circ}C$의 고온 조건에서 출수후 17일이 경과한 배를 이용하는 것이 적당할 것으로 보였다.