• Title/Summary/Keyword: White matter

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Effects of Systematic Variation Application of Fe, Mn, Cu, and Zn on the Dry Matter Yields of Orcharograss and White Clover (Fe, Mn, Cu 및 Zn의 Systematic Variation 시비가 Orchardgrass 및 White Clover의 건물수량에 미치는 영향)

  • Jung, Yeun-Kyu
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.24 no.3
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    • pp.193-200
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    • 2004
  • This pot experiment was conducted to investigate the effects of systematic variation application of Fe, Mn, Cu, and Zn on forage performance of orchardgrass and white clover. The treatments of systematic variation were 0/100, 25/75, 50/50, 75/25, and $100/0\%$ in the Fe/Cu(trial-1), Mn/Zn(trial-2), and Fe+Cu/Mn+Zn(trial-3), respectively. The treatments of Fe/Mn/Cu/Zn(trial-4) were composed of $70\%$ in main element and $10\%$ in other 3 elements, respectively. 1. By the systematic variations of Fe, Mn, Cu, and Zn, the yields were more significantly influenced in white clover than in orchardgrass. In addition, the yields of white clover were closely correlated to the trends of root/nodule growth and flowering. In the Fe/Cu trial, the relatively high yields were obtained at the $100/0\%$ in orchardgrass and at the $75/25\%$ in white clover. The yields of white clover were more negatively influenced by the 100/0(Cu control) than by the 0/100(Fe control). The yields of orchardgrass, however, tended to be opposite to the above trends. 2. In the Mn/Zn trial, both forages showed generally high yields at the high ratios of Mn/Zn. Compared with orchardgrass, the yields of white clover were greatly decreased by the Mn-deficiency(low ratio of Mn/Zn). The effects of Zn on forage yields, however, were not recognized. 3. In the Fe+Cu/Mn+Zn trial, the yields of orchardgrass tended to be slightly different among the treatments. The yields of white clover, however, were relatively' high at the 75/25, and showed a severe decrease at the 100/0 in the 2nd half cuts. In the Fe/Mn/Cu/Zn trial, the yields of white clover tended to be relatively high at the Cu and Zn treatments. It was likely to be caused by the balanced Fe/Mn ratio.

Preventive Effects of Nokyongdaebotang on Hyperlipidemia Rats (녹용대보탕(鹿茸大補湯) 투여에 의한 흰쥐의 고지혈증(高脂血證) 예방(豫防)에 관한 실험 연구)

  • Lee Sang-Woon;Jeong Chan-Gil;Kuim Kwang-Ho;Soh Kyung-Sun
    • Journal of Society of Preventive Korean Medicine
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    • v.7 no.2
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    • pp.107-119
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    • 2003
  • In order to study the preventive effects of hyperlipidemia depending on endogenous and exogenous methods of induction, after observing what happens when Nokyongdaebotang, a strengthening up treatment is orally administrated into the ways that cause hyperlipidemia either by the exogenous hyperlipidemia condition model method, which is the way where you orally administrate the cholesterol that was dissolved in olive oil, or the endogenous hyperlipidemia model method, where it uses the injecting the Triton WR-1339 vein method, or to the already inducted white rats, the following conclusions could be drawn. 1. The endogenous induction method, cholesterol diet, helps preventing Total Cholesterol, TG, and LDL-Cholesterol, Free Fatty Acid, Phospholipid's augmentation within the blood in the white rats that is being induced or just inducted with hyperlipidemia 2. The exogenous induction method, Triton WR injection, helps preventing Total Cholesterol, TG, and LDL-Cholesterol, Free Fatty Acid, Phospholipid's augmentation within the blood in the white rats that is being induced or just inducted with hyperlipidemia 3. The HDL-Cholesterol did not increase in regard. This is considered to be because when the geological features the HDL-Cholesterol increases proportionally. In deference to the above results, Nokyongdaebotang, which strengthens the vitality, showed that it helps prevent white rats that is being induced or just inducted with hyperlipidemia no matter whether it is endogenous or exogenous.

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Effect of Sowing Season on the Growth and Dry Matter Yield Legumes in Different Legume-Grass Mixtures according to Altitude (표고별 파종시기가 서로다른 두과 - 화본과 혼파초지에서 두과목초의 생육 및 건물수량에 미치는 영향)

  • 정의수;김현섭
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.12 no.3
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    • pp.153-160
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    • 1992
  • This experiment was conducted to investigate the adaptability of legume in different legume-grass mixtures according to altitude(600, 800, lOOOm a.s.1.) in the alpine area. The experimental plot was allocated as a split plot design with three replications. The main plots were sowing season(spring and fall) and subplots legume-grass mixture(alfa1fa-grass, red clover-grass and white clover-grass mixture). The results obtained are summarized as follows: 1. At 600m, in case of sowing alfalfa, red clover and white clover in fall. each legume of legume-grass mixtures was consistuted about 30% without between-year variation and then all legumes at fall sowing could grow. 2. At 800m, in case of sowing white clover in spring this species was consistuted about 14.7 % at the last cutting without severe between-year variation. 3. At 1000m, only white clover sown in spring like at 800m was somewhat maintained without severe between-year variation. 4. Percentage and DM yield of legume considerably decreased with the rise of altitude and alfalfa couldn't grow more than 800m.

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Effects of Dietary Supplementation of Shrimp Soluble Extract on Growth Performance, Innate Immunity and Digestibility of Pacific White Shrimp Litopenaeus vannamei (사료 내 새우가용성추출물(shrimp soluble extract) 첨가가 흰다리새우(Litopenaeus vannamei)의 성장, 면역력 및 소화율에 미치는 영향)

  • Ko, Daehyun;Shin, Jaehyeong;Kim, Min-Gi;Lee, Chorong;Kim, Sung-Sam;Park, Gunhyun;Lee, Kyeong-Jun
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.54 no.3
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    • pp.287-292
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    • 2021
  • This study was conducted to evaluate the effects of dietary supplementation with shrimp soluble extract (SSE) on growth performance, feed utilization, innate immunity and digestibility of Pacific white shrimp Litopenaeus vannamei. A basal diet (Con) was formulated and three other diets were prepared with SSE supplementation at different levels of 1, 2 and 4% (designated as SSE1, SSE2 and SSE4, respectively). Triplicate groups of shrimp (1.20±0.01 g) were fed one of the experimental diets for 6 weeks. At the end of the feeding trial, growth performance and feed utilization of the shrimp were significantly improved by dietary supplementation of SSE4 compared to those of shrimp fed the Con diet. Shrimp fed SSE4 diet had significantly higher phagocytic activity than shrimp fed the Con diet. Dietary supplementation of SSE improved the protein and dry matter digestibility of shrimp. These results indicate that SSE can be used as a functional additive in the diets for Pacific white shrimp.

Growth Characteristics of Paprika Seedlings Affected by Different LED Light Qualities Raising Seedlings Using Rockwool Cube (암면큐브를 이용한 육묘에서 LED 광질에 따른 파프리카 묘의 생육 특성)

  • Lee, Se-Hyoung;Ko, Baul;Bae, Jong Hyang;Ku, Yang Gyu;Kim, Ho Cheol
    • Journal of Bio-Environment Control
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    • v.31 no.1
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    • pp.60-66
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    • 2022
  • This study was conducted to investigate growth characteristics of paprika seedlings according to various qualities of LED light (red : blue = 10 : 0, red : blue = 8 : 2, red : blue = 2 : 8, white). Plant height and stem were significantly longer or thicker as red light ratio increased. Leaf area of paprika seedlings with red light was larger or no significant differences in a mixed light of red and blue. Dry weight of seedling was in the same with the result of leaf area. Seedlings with White light was significantly less than others in all characteristics. As red light ratio was increased, relative growth rate increased. As blue light ratio was increased, the net assimilation amount increased. Considering plant height, leaf area and production ability of dry matter per unit leaf area, the using mixed red and blue lights was suitable, especially at a mixed red : blue = 8 : 2.

A Study on the Usefulness of Perfusion MRI in Grading of Gliomas (뇌교종의 악성도 평가에서의 관류자기공명영상의 유용성에 관한 연구)

  • Khang, Hyun-Soo;Kim, Jong-Man;Ko, Shin-Kwan;Moon, Chan-Hong;Yu, In-Kyu;Han, Dong-Kyoon
    • Journal of radiological science and technology
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    • v.32 no.4
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    • pp.461-469
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    • 2009
  • To predict the tumor grading, various imaging modalities have been applied clinically. This study determines clinical usefulness of perfusion MRI, using relative cerebral blood volume in grading of the gliomas. We did a retrospective review of 17 patients (mean age, 57.5 years; 11 male, 6 female) who underwent perfusion MR and conventional MRI, and then correlated pathologically after operation. Statistical analysis of regional cerebral blood volume and relative cerebral blood volume(rCBV) was performed by using softwares such as PAT by SIEMENS and Xmap ver 2.0 developed by ourselves. Six patients out of 13 were low-grade gliomas while eleven patients were the high-grade gliomas. Mean relative CBV (m_rCBV/white matter) in the low-grade gliomas was 1.62, and mean relative CBV(m_rCBV/cortex) was 0.12. In the high-grade gliomas, mean relative CBV(m_rCBV/white matter) and mean relative CBV(m_rCBV/cortex) were 33.53 and 0.96. Mean relative CBV of gliomas were elevated with a statistical difference(P<.05), compared with contralateral white matter(P=.019) or cortex(P=.025). Furthermore mean relative CBV(m_rCBV/white matter) was much higher than mean relative CBV(m_rCBV/cortex). Perfusion MRI using regional cerebral blood volume and rCBV is very useful imaging modality for grading the glioma.

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Measurement of the Anisotropy of Nerve Fibers in the Hippocampal Region according to the Drinking beginning Age using TBSS(Tract-Based Spatial Statics) (TBSS(Tract-Based Spatial Statics)를 이용한 음주 시작연령에 따른 해마 영역 부위의 신경섬유의 비등방도 측정)

  • Kwak, Jong Hyeok;Kim, Gyeong Rip
    • Journal of the Korean Society of Radiology
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    • v.14 no.6
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    • pp.781-790
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    • 2020
  • Tract-Based Spatial Statics (TBSS) after obtaining the image by examining a diffusion tensor image that can determine the presence or absence of damage to the cerebral white matter and gray matter for middle-aged men aged 30 to 50 with the starting age of drinking as a variable. As a result of measuring and analyzing the FA (fractional anisotropy) value of the brain gray matter region to the hippocampal region nerve fibers, the lower the alcohol start age in all regions, the lower the anisotropy measurement value, but the FA value was statistically significant. The study results indicated by the FA results measured in this study are that the earlier the drinking start age, the more severe the morphological changes in all neurological and anatomical brain regions in the hippocampal region of the brain gray matter and seriously affect the nerve fiber tissue. It can be said to harm and damage nerve fibers and affect functional morphological variations associated with alcohol.

Microscopic Analysis for the Determination of the Use of the Rice Bran Excavated from Tomb No. 3 in Daeri-ri, Uiseong (의성 대리리 3호분 출토 쌀겨의 현미경적 분석을 통한 용도 추정)

  • Kang, Jungmoo;Jeon, Ara
    • Conservation Science in Museum
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    • v.23
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    • pp.61-70
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    • 2020
  • The excavations of Tombs Nos. 2 and 3 in Daeri-ri, Uiseong within the tomb complex on Geumseongsan Mountain revealed grayish-white organic matter of an undetermined shape and use beneath some horse tack. Stereoscopic examination revealed the matter to be decayed rice bran. That the matter was found spread beneath a saddle and the findings of microscopy suggest that the rice bran was used as filler for a saddle cloth that was placed underneath the saddle to reduce the friction between the saddle and the horse. The exact shape and composition of the filler are difficult to verify due to the lack of related organic matter other than the rice bran. Further discovery of rice bran along with horse tack in different situations will provide an opportunity to more closely investigate the precise uses of the rice bran found in ancient tombs.

Effects of Soil Water on Soil Environment and Yield of Helianthus tuberosus (토양수분이 돼지감자(Helianthus tuberosus L.)의 토양환경과 수량에 미치는 영향)

  • Yang, C.J.;Han, S.J.;Chang, K.J.
    • Journal of Practical Agriculture & Fisheries Research
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    • v.19 no.1
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    • pp.61-73
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    • 2017
  • This study aimed to determine the effect of organic matter content and water condition in soil on yield and sugar content of two varieties of Helianthus tuberosus. The plants were grown with high and low organic soil either under irrigation or no irrigation. In result, the yield of Helianthus tuberosus was higher about 7kg in soil with high organic matter than in soil with low organic matter, while it was higher about 11kg under the irrigation than under no irrigation. The yield of white variety was higher about 9kg than that of purple variety. Under the irrigation, a 12kg and 9kg of higher yields were observed in the soil with high and low organic matter content, respectively, than under no irrigation.

Clinical characteristics and prognosis of acute disseminated encephalomyelitis based on the lesions on MRI (자기공명영상의 병변에 따른 급성 파종성 뇌척수염의 임상 양상과 예후)

  • Chung, Sunghoon;Park, Sungsin;Chung, Sajun
    • Clinical and Experimental Pediatrics
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    • v.50 no.9
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    • pp.891-895
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    • 2007
  • Purpose : Acute disseminated encephalomyelitis (ADEM) is a demyelinating disease of the central nervous system and mostly develops after viral illness or vaccinations. We investigated the clinical differences and neurologic outcomes according to the distribution of the lesions on brain MRI. Methods : The study group was composed of 21 patients from January 1995 to August 2003 in Kyunghee University hospital. We grouped the patients according to the MRI findings as follows. Group I (14 cases): Multi- or unifocal lesions only in the cerebral white matter. Group II (7 cases): lesions in the gray matter with or without white matter involvement. Results : 1. Preceding events were as follows: no defined prodrome (38.1%), upper respiratory tract infection (28.6%), nonspecific febrile illness (19.0%), gastointestinal disturbance and vaccination. 2. Presenting symptoms were as follows: seizures (76.2%), headache/vomiting (47.6%), altered consciousness (38.1%), hemiparesis, cerebellar ataxia, visual disturbance and facial nerve palsy. 3. Laboratory findings were as follows: CSF pleocytosis (76.2%), leucocytosis (38.1%) and elevated CSF protein (28.6%). 4. Fifteen patients were recovered completely without neurological sequelae. Three patients in group I and 1 patient in group II had intractable seizures. Two patients in group I and 2 patients in group II had motor disturbance. Conclusion : There were no statistically significant differences in preceding events, presenting symptoms, and neurological outcomes according to the distribution of the lesions on brain MRI. However, the ADEM have quite diverse clinical manifestations and neuroimage findings. MRI plays an important role in making diagnosis of the patients who are suspected of ADEM.