• Asian-Australasian Journal of Animal Sciences
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• 제22권7호
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• pp.937-942
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• 2009

The aim of this study was to analyze the effects on growth and muscle development during the growing period of the sex-linked dwarf gene in the background of a Taiwan Country chicken strain, L2, selected for egg production. Eight crossbred males, heterozygous for the DW*DW mutation, were each backcrossed to six females of the L2 strain to produce two genotypes of BC females, either normal (DW*N+/-) or dwarf (DW*DW/-). The experiment included 251 normal and 207 dwarf pullets. The effect of the dwarf gene on body weight and shank length was highly significant from 2 weeks of age. The reduction of body weight by the dwarf gene reached 34.8% and 37.4% as compared to normal sibs at 16 and 20 weeks of age, respectively. Parameters of the growth curve were estimated: the age at inflection (TI) was higher in normal pullets (66.9 days) than in dwarf pullets (61.2 days). A significant effect of the dwarf gene on single muscle fiber cross-section area was found from 12 weeks of age onwards, whereas the dwarf gene had no effect on the total number of muscle fibers. Comparing the effect of the dwarf gene on shank length at different ages revealed an earlier effect on skeleton growth, observed from 2 weeks of age, than on muscle development, which was affected from 8 to 12 weeks of age.

• 한국조경학회지
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• 제22권1호
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• pp.85-100
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• 1994

This study was to analyze the relationship between the community or species and environmental variables of the vegetation landscape in Naejangsan National Park. The analysis was performed by the ordination of DCA and CCA. The study was to compare and analyze the species composition status by the layer and the growth characterisics of the following vegetations ; Torreya nucifera community, Quercus variabilis - Acer palmatum community, Q. variabilis community, Q. variabilis - Sasa purpurascens community and Daphniphyllam macropodum community. The results are as follows; 1. The result of the study on the relationshkp between the stand scores of DCA ordination and environmental variables showed that the soil pH, the ammount of AV-P2O5 and the ammount of C.E.C. tend to increase while Pinus densiflora community changes to Q. variabilis - Q. serrata community and finally Carpinus laxiflora species community siginigicantly. The relation between the stand scores of CCA ordination and several enviromental variables suggested that the species of C. laxiflora and C. tschonoskii the species of Q. cariabilis and Q. serrata the species of C. pisifera, P. densiflora and Q. aliana in sequence grows in more fertile soil. 2. As the result of the analysis of the T. nucifera community showed, reproduction did not increase, and the characteristic of growth was not affected. The result is shown in the growth curve that was damaged by the climate and the human interference. 3. The A. palmatum was found to be as minor species in the middle layer and the crown areas did not have sufficient crown. 4. The result of the analysis of the relationship between Q. variabilis community and Q. variabilis - S. purpurascens community showed a decreasing tendency in the growth and number of species. 5. D. macropodum which constituted the dominance species in the middle layer had a nomal growth curve, and then the successional trend of D. macropodum species seems to be located in the climax species.

• 대한한방부인과학회지
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• 제25권1호
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• pp.34-46
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• 2012

Objectives: The object of this study was to observe the in vitro antibacterial effects of Wandae-tang extracts and combination of Wandae-tang extracts and Clindamycin against Gardnerella vaginalis ATCC14018. Methods: Antibacterial activities against Gardnerella vaginalis ATCC14018 of Wandae-tang extracts were detected using standard agar microdilution methods. In addition, the effects on the bacterial growth curve were also monitored at minimal inhibitory concentration(MIC) and $MIC{\times}2$ levels. The combination effects of Wandae-tang extracts with Clindamycin were observed by Checkerboard microtiter assay, and the effects of bacterial growth curve was treated with Wandae-tang extracts MIC+Clindamycin MIC, 1/2 MIC and 1/4 MIC, respectively. Results: MIC of Wandae-tang extracts and Clindamycin against Gardnerella vaginalis ATCC14018 were detected as $1.719{\pm}0.856$(0.782~3.125) $mg/m{\ell}$ and $0.010{\pm}0.006$ (0.004~0.016) ${\mu}g/m{\ell}$. In addition, Clindamycin and Wandae-tang extracts were also showed marked dosage-dependent inhibition of bacterial growth, and more dramatical inhibitions were detected in Clindamycin+Wandae-tang extracts MIC treatment. Fractional inhibitory concentration index in combination of Wandae-tang extracts and Clindamycin were detected as $0.294{\pm}0.052$(0.250~0.375) at Checkerboard microtiter assay. Conclusions: The results obtained in this study suggest that Wandae-tang extracts showed antibacterial effects against Gardnerella vaginalis ATCC14018, and they also showed dosage-dependent inhibitory effects on the bacterial growth. In addition, combination treatment of Wandae-tang extracts with Clindamycin showed more synergistically potent inhibitory effects on the growth of Gardnerella vaginalis.

• 한국수산과학회지
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• 제39권6호
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• pp.487-494
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• 2006

The effects of water temperature, salinity and irradiance on the growth of harmful algae Chattonella marina isolated from Gamak Bay in South Sea, Korea were investigated. C. marina was able to grow in temperatures of $15-30^{\circ}C$ and salinities of 10-35 psu. Maximum specific growth rate (0.64/day) was observed with combination of $25^{\circ}C$ and 25 psu. Optimal growth (${\ge}70%$ of maximum specific growth rate) was obtained with all salinities of the above $20^{\circ}C$. This result indicated that C. marina is a stenothermal of the high water temperature and euryhaline organism. C. marina was did not grow at irradiance ${\le} 10{\mu}mol$ photons/($m^2\;s$). Photoinhibition did not occur at $300{\mu}mol$ photons/($m^2\;s$), which was the maximum irradiance used in this study. The irradiance-growth curve was described as ${\mu}=0.78(I-11.4)/(I+34.1)$ at $25^{\circ}C$ and 25 psu. The half-saturation photon flux density (PFD) ($K_s$) was $56.9{\mu}mol$ photons/($m^2\;s$) and compensation PFD ($I_c$) was $11.4{\mu}mol$ photons/($m^2\;s$). The result of the present study indicate that C. marina has advantage physiological characteristic to the interspecific competition at the embayment and costal areas of South and West Sea, Korea in summer.

• 한방재활의학과학회지
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• 제29권1호
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• pp.75-83
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• 2019

Objectives Previous animal studies have shown that mixtures of Cynanchum wilfordii and Phlomis umbrosa extract (IPLUS-CWPU) increases femur length and insulin like growth factor-1 (IGF-1) secretion. IPLUS-CWPU may thus be a promising ingredient in functional foods aimed at growing child's height. The purpose of the study is to investigate the effect of IPLUS-CWPU on height growth in children with short stature. Methods For this purpose, we recruited 90 children aged 4 to 12 years who had heights ranging from the 5th to 25th percentiles of Korean children's growth curve and randomized to either the IPLUS-CWPU or the placebo group. Results The IPLUS-CWPU group showed a significant increase in the change of the height growth compared to the placebo group after 20 weeks of administration (p=0.02). The height growth velosity also showed a statistically significant difference in the test group compared to the placebo group at 10 weeks (p=0.04). The IGF-1 levels showed a tendency to increase in the IPLUS-CWPU group (p=0.08). Moreover, the IPLUS-CWPU significantly increased IGF-1/IGFBP-3 ratio (p=0.02). However, there were no significant differences in blood biochemical parameters including growth hormone, bone age, thyroid stimulating hormone, and osteocalcin levels. Conclusions In conclusion, the data of this trial indicate that IPLUS-CWPU is effective and safe, generally well-tolerated without severe adverse events, in the treatment of children with short stature over a 20 weeks period.

• 한국결정성장학회지
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• 제10권6호
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• pp.378-380
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• 2000

The epitaxial $BaTiO_{3}$ thin film was prepared on the MgO substrate by the coating-pyrolysis process using a mixed solution of Ba-naphthenate and Ti-naphthenate. The crystal structure of the epitaxial $BaTiO_{3}$ thin film was characterized by XRD ${\theta}/2{\theta}$ scan and asymmetric {303} rocking curve scan. The epitaxial $BaTiO_{3}$ thin film had the cubic phase with the lattice parameter of a = c = 0.4018 nm.

• 사회복지연구
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• 제44권2호
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• pp.169-199
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• 2013

본 연구는 은퇴 후 생활만족도 발달궤적의 변화를 분석하고, 개인, 은퇴, 가족 특성이 은퇴 후 생활만족도에 어떠한 영향을 미치는가를 분석하는 데 그 목적이 있다. 연구자료는 국민노후보장패널 1차조사에서 3차조사까지에 해당하는 2005년에서 2009년 자료에서 1차 년도에 은퇴를 한 1,576명을 대상으로 분석하였다. 자료 분석은 AMOS 20.0을 활용한 잠재성장모형을 사용하였다. 본 연구결과는 다음과 같다. 첫째, 본 연구대상자의 은퇴 후 생활만족도는 보통에서 약간 못 미치는 초기값을 가졌으며, 첫 번째 측정시기부터 3차년도 측정시기까지 은퇴후 생활만족도가 조금씩 증가하는 경향을 보이는 것으로 나타났다. 둘째, 조건형 잠재성장모형을 수행한 결과, 개인적 특성에서는 성별, 교육수준, 소득, 건강상태가, 은퇴특성으로는 은퇴자발성여부가, 가족 특성에서는 가족관계만족도 및 부부생활만족도가 은퇴 후 생활만족도의 초기값에 영향을 주는 것으로 나타났다. 또한, 은퇴 후 생활만족도 변화율에 영향을 주는 변인으로는 개인적 특성에서는 건강상태, 은퇴 특성에서는 은퇴자발성 여부, 가족특성 중에서는 가족관계만족도가 유의미한 변인으로 나타났다.

• 생물환경조절학회지
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• 제27권4호
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• pp.326-331
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• 2018

작물 생육 모델은 작물의 생육을 이해하고 통합하기 위해 유용한 도구이다. 완전제어형 식물공장에서 엽채류로 활용하기 위한 퀴노아(Chenopodium quinoa Willd.)의 초장, 광합성률, 생장 모델을 예측하기 위한 모델을 1차식, 2차식 및 비선형 및 선형지수 등식을 사용하여 개발하였다. 식물 생육과 수량은 정식 후 5일간격으로 측정하였다. 광합성과 생장 곡선 모델을 계산하였다. 초장과 정식 후 일수(DAT)간의 선형 및 곡선 관계를 얻었으나, 초장을 정확하게 예측하기 위한 모델은 선형 등식이었다. 광합성률 모델을 비선형 등식을 선택하였다. 광보상점, 광포화점, 및 호흡률은 각각 29, 813 and $3.4{\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$였다. 지상부 생체중과 건물중은 선형관계를 보였다. 지상부 건물중의 회귀계수는 0.75 ($R^2=0.921^{***}$)였다. 선형지수 수식을 사용하여 시간 함수에 따른 퀴노아의 지상부 건물중 증가를 비선형 회귀식으로 수행하였다. 작물생장률과 상대생장률은 각각 $22.9g{\cdot}m^{-2}{\cdot}d^{-1}$ and $0.28g{\cdot}g^{-1}{\cdot}d^{-1}$였다. 이러한 모델들은 정확하게 퀴노아의 초장, 광합성률, 지상부 생체중과 건물중을 예측할 수 있다.

• 한국컴퓨터정보학회논문지
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• 제21권8호
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• pp.95-103
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• 2016

Food habit forming the basis for a lifetime of food and nutrient intake is established in early childhood and has an effect to the child's growth, sociality, and obesity. A variety of nutrition screening tools exists for assessing the health and nutrition status of children such as the Growth Curve, for determining if growth is appropriate. Body mass index(BMI) as a more reliable index of overweight to prevent childhood obesity, and Nutrition Quotient(NQ) and eating behaviors questionnaire for young children and parents to estimate their nutrient intake adequate or not. Such tools are mainly used by health practitioners, such as doctor and dietitian to provide nutrition intervention services to children at risk, especially and are not easy to use for general parents, who need assessment at any time and at any place. We propose Growth Assistance System for infants and children, which is possible to assess their physical condition, nutritional status, and eating behavior integrated. To be convenient and portable, it is implemented over the smartphone as an application. The system offers the growth charts, the BMI curves, NQ and eating behavior questionnaire to take a monitoring and the functionalities operate well. We hereby expect this system support the normal growth and development of infants and young children. And also support for the health practitioner (dietitians and nutritionists) to take a role in providing nutrition counseling and education to children needing nutrition services.

• Applied Biological Chemistry
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• 제27권1호
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• pp.7-13
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• 1984

본 연구는 탈지대두분(脫脂大豆粉)에서 만든 대두유에 여러 가지 당(糖), 발육촉진물질, amino acid, 유제품부산물을 가하여 Lactobacillus acidophilus의 생육과 산생성에 미치는 영향을 관찰한 것으로서 그 결과를 요약하면 다음과 같다. 배양시간에 따른 유산균의 생육도를 측정한 실험으로부터 대략 12시간까지가 대수기인 것으로 나타났다. 본 실험에서 사용된 당(糖) 가운데 glucose와 fructose가 유산균에 의한 산생성에 현저한 효과를 보였으며, 그 적정농도는 각각 3% 정도였다. 첨가된 발육촉진물질 가운데 yeast extract가 유산균에 의한 산의 생성을 가장 촉진시켰으며 그 적정농도는 0.5% 정도였다. l-methionine의 첨가에 의하여 유산균에 의한 산생성이 감소하였다. 대두유에 첨가된 유청분말과 탈지분유는 유산균의 생육과 산생성 촉진 효과가 저조하였다. 대두 단백질의 농도를 달리했을 때 유산균의 생육과 산생성에는 차이가 없었다.