• Title/Summary/Keyword: height growth

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Randomized, Double-blind, and Placebo-controlled a Human Study for Growing of Stature via the Analysis of Effect of Ferment Oyster Extract: Study Protocol (발효굴추출물의 경구 섭취가 소아 신장 성장에 미치는 효과 및 안전성 평가를 위한 무작위배정, 이중눈가림, 위약 대조 인체적용시험: 인체적용시험 프로토콜)

  • Kim, Hee-Yeon;Park, Beom-Chan;Cheon, Jin-Hong;Choi, Jun-Yong;An, Byeong-Min;Park, Joung-Hyun;Lee, Bae-Jin;Kim, Kibong
    • The Journal of Pediatrics of Korean Medicine
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    • v.33 no.4
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    • pp.37-46
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    • 2019
  • Objectives The purpose of this study is to confirm the efficacy and safety of the treatment of with fermented oyster extract on height growth in children with short stature. Methods A total of 100 people, between 6 and 11 years old, will be participated in a randomized, double-blind, and placebo-controlled human study. The fermented oyster group will take 500 mg of fermented oyster extract once a day for 24 weeks. The placebo group will take 3400 mg of fructooligosaccharide as placebo once a day for 24 weeks. The outcomes of the intervention will be measured at the baseline, 6 week, 12 week, 18 week, and 24 week. The primary outcome is the changes in height from the baseline. The secondary outcomes are growth rate, height SDS, bone age, GH, IGF-1, IGFBP-3, osteocalcin, BALP, DPD, and LH. Results This trial was approved by the institutional review board of Pusan National University Korean Medicine Hospital (registry number: PNUKHIRB-2019002). Recruitment of the research participants will be opened from May 2019 till December 2019. Conclusions This study will provide clinical information to determine the efficacy and safety of the treatment with fermented oyster extract on height growth in children with short stature.

Ecological Characteristics of Sub-Alpine Coniferous Forest on Banyabong in Mt. Jiri (지리산 반야봉 아고산 침엽수림의 생태적 특성)

  • Cho, Min-Gi;Chung, Jae-Min;Im, Hyo-In;Noh, Il;Kim, Tae-Woon;Kim, Chung-Yeol;Moon, Hyun-Shik
    • Journal of Climate Change Research
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    • v.7 no.4
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    • pp.465-476
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    • 2016
  • This study was conducted to elucidate the ecological characteristics of sub-alpine coniferous forest on Banyabong, Mt. Jiri. Soil pH was 4.20. The contents of organic matter, total N, available P and CEC were 14.15%, 0.43%, 10.1 ppm and $17.17cmol^+/kg$, respectively. Sub-alpine coniferous forest had a relatively soil moisture content with 22.9%. According to the results of importance value analysis, Picea jezoensis (42.7) and Abies koreana (34.0) for tree layer, Rhododendron schlippenbachii (25.5) for subtree layer and Tripterygium regelii (18.4) and Rhododendron mucronulatum (16.6) for shrub layer were high, respectively. Shannon's diversity ranged from 0.3560 to 1.050. Evenness and dominance ranged from 0.398 to 0.733 and 0.267 to 0.601, respectively. A. koreana population had a reverse J-shaped DBH distribution, while P. jezoensis population had a normal DBH distribution. Height growth according to DBH of A. koreana was higher than that of P. jezoensis, which indicate than A. koreana have more effective water use efficiency than P. jezoensis. Annual mean tree ring growth of P. jezoensis and A. koreana showed up 1.792, 1.652, 1.389 mm/yr and 2.081, 1.921, 1.576 mm/yr for small, middle and large diameter tree, respectively.

Analysis of Factors Affecting Height Growth After Renal Transplantation in Children (소아 신이식 후의 키 성장에 영향을 미치는 인자들에 대한 연구)

  • Lee Joo Hoon;Lee Byong Sop;Kang Hee-Gyung;Hahn Hyewon;Lee Jun Ho;Ha Il Soo;Cheong Hae Il;Choi Yong;Kim Sang Joon
    • Childhood Kidney Diseases
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    • v.4 no.1
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    • pp.84-91
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    • 2000
  • Purpose: To improve the recovery of growth deficit after renal transplantation in children, we analysed the factors affecting height growth after renal transplantation. Methods: We reviewed medical records of fifty-six children in whom height data were available for three years after transplantation. All height data were converted into Z-scores. We analyzed the effects of sex, age at transplantation, cumulative mean steroid dose for 3 years, serum creatinine levels, height at transplantation, donor source and history of prior dialysis on patients' z-scores and delta Zs. Results: The Z-scores at transplantation were lower in patients of younger age (P=0.007). When baseline Z-scores were lower, the delta Zs were higher (P<0.01), but the Z-scores after transplantation were still lower (P<0.001). According to the analysis of the partial correlation coefficients, Z-scores and delta Zs at 1 year after transplantation were higher in groups of younger age and of lower steroid dosages (P<0.05). The delta Zs at 6 month and 1 year after transplantation were lower in the group with abnormally higher serum creatinine (P<0.05). There was no difference in Z-scores between groups of different genders, donor sources, and histories of previous dialysis. Conclusion: The children of younger age, on lower steroid dosage, with less growth retardation at transplantation, and with normal graft function had better height growth recoveries after renal transplantation.

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Evaluation of Vegetative Growth in a Mature Stand of Korean Pine under Simulated Climatic condition (복원된 국지기후에 근거한 잣나무 성숙임분의 영양생장에 미치는 국지기후의 영향)

  • 김일현;신만용;김영채;전상근
    • Korean Journal of Agricultural and Forest Meteorology
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    • v.3 no.2
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    • pp.105-113
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    • 2001
  • This study was conducted to reveal the effects of local climatic conditions on the vegetative growth in a mature stand of Korean white pine based on climatic estimates. For this, the annual increments of stand variables such as DBH, height, basal area and volume were measured and estimated for seven years from 1974 to 1980. The local climatic conditions in the study site were also estimated by both a topoclimatological method and a spatial statistical technique. The local climatic conditions were then correlated with and regressed on the growth factors to reveal the relationships between the climatic estimates and the growth. It is found that relatively high temperatures had positive effects on the diameter growth. The yearly diameter growth increased when each of mean, maximum, and minimum temperature during the growing season was high. Height growth showed positively significant correlation with three climatic variables. The most important variable influencing height growth was the average of maximum temperature for 10 months from January to October. It means that the higher the average of maximum temperature for 10 months from January to October is, the more height growth of Korean white pine increases. Other climatic variables related to height growth were average of minimum temperature for 3 months in the early growing season and mean relative humidity for the growing season. Six climatic variables related to temperature had effects on basal area increment and all of them were positively correlated with basal area increment. Especially, temperatures from January to March were important factors affecting the basal area increment. In volume increment, high correlation was also recognized with most of temperature variables. This tendency was the same as the results in diameter and hight increments. This means that the volume growth increases when temperatures during the growing season are relatively high.

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Soil Chemical Property, Mortality Rates and Growth of Planting Trees from Soil Covering Depths in Coastal Reclaimed Land of Asan Area (아산지역 해안매립지의 복토높이에 따른 토양화학성, 수목 고사율 및 생장 특성)

  • Byun, Jae-Kyeong;Kim, Choon-Sig;Lim, Chae-Cheol;Jeong, Jin-Hyon
    • Korean Journal of Soil Science and Fertilizer
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    • v.44 no.3
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    • pp.502-509
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    • 2011
  • It is important to determine optimum soil covering depths for tree survival and growth because soil covering depths for establishing tree planting bases in coastal reclaimed lands are related to the costs for soil collection, transportation and land reclamation. The objectives of this study were carried out to determine optimum soil covering depths for the normal growth of planted trees in a coastal reclaimed land. The study sites were located in Asan National Industrial Complex in Pyeongtaek City, Gyeonggi-do. Four tree species (Pinus thunbergii, Chamaecyparis pisifera, Zelkova serrata, Quercus acutissima) with one hundred eighty trees of each species were planted in various depths of soil covering (no soil covering, 0.5 m, 1.5 m, 2.0 m soil covering treatments) on April 1998, and the tree growth patterns were measured on September 2000. The change of soil properties, tree mortality rate, root collar diameter and height growth were measured from each soil covering depth treatment on September 2000. Soil pH, EC, exchangeable cations ($K^+$, $Na^+$, $Ca^{2+}$, $Mg^{2+}$), anion $Cl^-$, and base saturation increased with decreased soil covering depths. The mortality rates of tree species showed decreased with increased soil covering depths. The height growth of tree species increased with increased soil covering depths. Height growth of Pinus thunbergii was significantly different between the soil covering depth below 0.5m and other three covering depths, while the growth of other species (C. pisifera, Z. serrata, Q. acutissima) was significantly higher in soil covering depths below 1.5 m than in other soil covering depth treatments. The root collar diameter growth of all tree species showed increasing trends with increased soil covering depths. It is recommended to cover the soil depths above 1.5 m to decrease mortality and to stimulate the tree growth of C. pisifera, Z. serrata and Q. acutissima, while P. thunbergii which is a salt tolerate species could be planted in the 1.0 m soil covering depth.

Influence of bulb nematode, Ditylenchus dipsaci, on growth and yield of garlic (마늘구근선충이 마늘의 생육 및 수량에 미치는 영향)

  • Han S.C.;Cho H.J.
    • Korean journal of applied entomology
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    • v.19 no.3 s.44
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    • pp.153-155
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    • 1980
  • In pot experiment, relations between bulb nemationde, Ditylenchus dipsaci, and growth and yield of garlic were followed. There was no effect of height growth on bulb nematode, but growth of volume was reduced at more than 250 nematodes per pot. Yield loss of garlic was more than $20\%$ when nematode density was about 30 per bulb in late-April. Tolerance limit should be about 20 nematodes per bulb at early growing stage. Reproduction of bulb nematode was good when initial population had been low.

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Clinical Study of Effect to the Height-Growth after the Administration of Boyangsungjangtang to the Prepuberty Children (보양성장탕(補陽成長湯) 투여가 사춘기 전 소아의 신장성장에 미치는 효과에 대한 임상적 연구)

  • Jeong Hwan-Su;Lee Hun;Lee Jin-Yong;Kim Deok-Gon
    • The Journal of Pediatrics of Korean Medicine
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    • v.15 no.1
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    • pp.47-57
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    • 2001
  • Heights of children ranged from 91.10 to 144.70 and the mean height rate after the administration of Boyangsungjangtang was significantly greater than that, 0.036, of prepuberty children who are in 50 percentile(One sampled T test, p<0.001). A highly significant difference was observed among three groups, divided according to the duration of taking Boyangsungjangtang(ANOVA, p=0.015). Further analysis(Tukey's Multiple Range test) indicated that the mean height rate of the group taking Boyangsungjangtang for under 3 months was significantly higher than that of both group for 3 to 6 months and group for over 6 months. The mean height rate of the latter two groups were not significantly different.

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Heritability and Genetic Gains for Height Growth in 20-year-Old Korean White Pine in Korea

  • Shin, Man-Yong;Park, Hyung-Soon;Cho, Yoon-Jin;Chung, Dong-Jun
    • Korean Journal of Plant Resources
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    • v.19 no.6
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    • pp.677-679
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    • 2006
  • The objectives of this study were to examine the genetic variation of 20-year-old tree height and to estimate heritabilities and genetic gains of Korean white pine. Analysis of variance showed that families and family x block interaction had the significant (p=0.01) effects on tree height. However, family variation appears to be much greater than the variation due to family x block interaction. Individual tree heritability was higher ($h_I^2=0.73$) than family heritability, ($h_F^2=0.83$) therefore, combined selection showed the largest genetic gain (17.76%) in a given equal intensity of selection.

A ROENTGENOCEPHALOMETRIC STUDY OH THE LINEAR ANALYSES IN NORMAL OCCLUSION FOR KOREAN (한국인 정상교합자안모의 실측장분석에 관한 두부방사선 계측학적 연구)

  • Yang, Won Sik
    • The korean journal of orthodontics
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    • v.4 no.1
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    • pp.7-12
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    • 1974
  • The author analyzed 64 males and 65 females with normal occlusion from the childhood to the juvenile korean roentgenocephalometrically. And following conclusions were obtained by means of linear analyses. 1. Maxillo-facial structure growth continued quite rapidly until puberty from childhood, and growth of male was increased than that of female after Hellman dental age IV A significantly. 2. The order of growth increments were mandibular, maxillary, and cranial base length in both sexes. 3. In both sexes, the growth of anterior face was more rapid than that of posterior face, and lower facial growth was greater than upper facial growth of anterior and posterior face. 4. The maxillo-facial height growth was rapid than that of the depth in both sexes.

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Evaluation of Condensation Heat Transfer Correlations for Microfin Tubes

  • Han, Dong-Hyouck;Lee, Kyu-Jung
    • International Journal of Air-Conditioning and Refrigeration
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    • v.15 no.4
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    • pp.163-168
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    • 2007
  • The feature of six existing condensation heat transfer correlations for microfin tubes were evaluated with the consideration of vapor quality, mass flux, geometries, and various refrigerants. The Kosky and Staub [15] and the Jaster and Kosky [16] correlations for smooth tube were used for the evaluation of the heat transfer enhancement factor (EF). For the prediction of zeotropic mixtures, most correlations show discrepancy with previous measurements. The Yu and Koyama [4] and the Shikazono et al. [8] correlations do not consider spiral angle effect. The Han and Lee [10] correlation shows fin height growth deteriorates heat transfer. Experimental verification to develop reliable condensation heat transfer correlation for microfin tubes is still needed with the consideration of geometrical effects and working conditions.