• Title/Summary/Keyword: L value

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Evaluation of reference value of anti-Glutamic acid decarboxylase antibody for cerebrospinal fluid (뇌척수액에서 항 Glutamic acid decarboxylase 항체검사의 참고치 설정)

  • Park, Min-Ho;Shin, Sun-Young;Youn, Tae-Seok;Shin, Hi-Jung;Noh, Gyeong-Woon
    • The Korean Journal of Nuclear Medicine Technology
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    • v.21 no.2
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    • pp.28-30
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    • 2017
  • Purpose Anti-Glutamic acid decarboxylase antibody test (GAD Ab) has been used as a predictor of type 1 diabetes. GAD Ab has also been shown to be highly potent in cerebrospinal fluid (CSF) of patients with suspected diabetic peripheral neuropathy. Recently, it has been known that clinical significance of GAD Ab using CSF is useful for the neurological disorders. However, the reference value of anti-GAD Ab has been provided only for serum. In this experiment, we estimated the reference value of anti-GAD antibody for CSF in neurological patients. Materials and Methods A total of 211 neurological patients were enrolled. Serum and CSF were analyzed by radioimmunoassay (RIA) using commercial RIA anti-GAD Ab kit (RSR, London, United Kingdom). Normal saline was used as the normal CSF control because CSF is most similar to 0.9% normal saline. Results The mean value of normal CSF control was 1.97 U/mL, and two standard deviations (2SD) was 1.44 U/mL. Based on this data, the expected reference range of CSF could be estimated from 0.54 U/mL to 3.40 U/mL Conclusion The reference range of normal CSF control using normal saline obtained with Hoffmann's method. However, there will be a need to validate the CSF reference values using human normal CSF.

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Korean College Students' English Learning Motivation and Listening Proficiency

  • Yang, Eun-Mi
    • English Language & Literature Teaching
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    • v.17 no.2
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    • pp.93-114
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    • 2011
  • The aim of this study is twofold. First, this study aimed to explore how Korean university students' English learning motivation is related to their English listening proficiency and study time. Second, it attempted to interpret the English learning motivation linking the two different motivation theories: self-determination theory and L2 motivational self system. The constructs of the students' L2 learning motivation were investigated with the data obtained through the questionnaire from 122 sophomore students. A factor analysis was conducted to extract the major factors of motivation. As a result, 6 factors were extracted: Intrinsic Pleasure, Identified Value Regulation, Intrinsic Accomplishment, Introjected Regulation, External Regulation, and Identified Regulation. The Interrelatedness among the assessment results on the L2 listening proficiency (pre and post test), listening study time, and motivation factors was measured by correlation coefficients. The statistical results indicated that pre-test scores were significantly related to Identified Regulation and Identified Value Regulation toward English learning, and post-test results had significant correlation with Intrinsic Accomplishment and Identified Regulation. However, no motivation subtypes showed statistical association with the students' listening study time. The results were attempted to be interpreted both under L2 motivational self system and self-determination framework to better illuminate the motivation theory with more explanatory power.

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Heterophil Phagocytic Activity Stimulated by Lactobacillus salivarius L61 and L55 Supplementation in Broilers with Salmonella Infection

  • Sornplang, Pairat;Leelavatcharamas, Vichai;Soikum, Chaiyaporn
    • Asian-Australasian Journal of Animal Sciences
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    • v.28 no.11
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    • pp.1657-1661
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    • 2015
  • Newborn chicks are susceptible to Salmonella enterica serovar Enteritidis (SE). The objective of this study was to evaluate the effect of Lactobacillus probiotic isolated from chicken feces on heterophil phagocytosis in broiler chicks. A total of 150 newborn broiler chicks were divided into 5 groups (30 chicks per group) as follows: group 1 (normal control), given feed and water only, group 2 (positive control) given feed, water and SE infection, group 3 (L61 treated) given feed, water, SE infection followed by Lactobacillus salivarius L61 treatment, group 4 (L55 treated) given feed, water, SE infection followed by L. salivarius L55 treatment, and group 5 given feed, water, SE infection followed by L. salivarius L61 + L55 combination treatment. After SE infection, L. salivarius treatment lasted for 7 days. The results showed that L. salivarius L61 and L. salivarius L55 treatment, either alone or combination of both, increased the survival rate after SE infection, and upregulated heterophil phagocytosis and phagocytic index (PI). Conversely, chick groups treated with Lactobacillus showed lower SE recovery rate from cecal tonsils than that of the positive control group. The PI values of the chicken group with SE infection, followed by the combination of L. salivarius L61 and L. salivarius L55 were the highest as compared to either positive control or normal control group. Two Lactobacillus strains supplementation group showed significantly (p<0.05) higher PI value at 48 h than 24 h after treatment.

Effect of Plant Growth Regulator on Antioxidant Activity of Rosmarinus officinalis L. and Lavandula spica L. (로즈마리(Rosmarinus officinalis L.)와 라벤더(Lavandula spica L.)의 항산화 활성에 미치는 식물생장물질의 영향)

  • Yoon Jae-Ho;Lee Jong-Il;Oh Chi-Kun;Zhi, Chen;Yang Seung-Yul;Song Won-Seob
    • Korean Journal of Plant Resources
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    • v.19 no.2
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    • pp.315-322
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    • 2006
  • This experiment was conducted to investigate the induction rate of callus and antioxidative activity of rosemary and lavender. Callus induction rate of rosemary was 92% and 94% at 0.5mg/L and 1.0mg/L of 2,4-D in the media, respectively. The antioxidative activities of rosemary appeared differently according to the callus cultured under various concentrations of plant growth regulators. The strongest effect was observed at 0.1mg/L of 2,4-D extract, with $43{\pm}1.5{\mu}g/mL$ of an RC50 value. Callus induction rate of lavender was 98% and 99% at 1.0mg/L of 2,4-D and 1.0mg/L of NAA in the media, respectively. The regeneration rate of roots lavender was 85% at 1.0mg/L of NAA in the media. Antioxidative activities of lavender appeared diffently according to the callus cultured under plant growth regulators. The strongest effect was observed in 0.1mg/L of 2,4-D extract, with $37.6{\pm}0.9{\mu}g/mL$ of an RC50 value, which could be compared with value of leaf.

Storage Properties and Sensory Characteristics of Sikhe Added $Ulmus$ $pumila$ L. Extract (유근피 추출물을 첨가한 식혜의 저장성 및 관능특성)

  • Jeong, Kwang-Yeol;Lee, Eun-Ju;Kim, Mi-Lim
    • Food Science and Preservation
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    • v.19 no.1
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    • pp.12-18
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    • 2012
  • In this study, 0, 20, 40, 60, 80, and 100% $Ulmus$ $pumila$ L. nonglutinous and glutinous sikhe were added to $Ulmus$ $pumila$ L. extracts for 15 days at $4^{\circ}C$, and for seven days at $25^{\circ}C$, to examine the extracts' storage properties and sensory characteristics. The results are as follows: (1) On the changes of pH and acidity during storage of $Ulmus$ $pumila$ L. nonglutinous and glutinous sikhe, both of them showed lower pH values with lower additive $Ulmus$ $pumila$ L. extract contents. The pH value continuously decreased with a longer storage period, and the acidity was higher with a lower concentration of $Ulmus$ $pumila$ L. extract. (2) The total microbial cell count during storage of $Ulmus$ $pumila$ L. nonglutinous and glutinous sikhe at $4^{\circ}C$ was 4.6-5.0 log CFU/g at 0 day. The sikhe to which $Ulmus$ $pumila$ L. extract was not added increased to 8.8-9.0 log CFU/g on the seventh storage day, while the sikhye to which 80 and 100% $Ulmus$ $pumila$ L. extracts were added were 7.8 and 6.9 logCFU/g, respectively. Thus, the total cell count was lower with a higher additive content of $Ulmus$ $pumila$ L. extract. The total cell count of the sikhe to which 0-60% $Ulmus$ $pumila$ L. extracts reached the maximum value on the seventh storage day and did not show any change thereafter. The total cell count of the sikhe to which 80 and 100% $Ulmus$ $pumila$ L. extracts were added, however, reached the maximum value on the 10th to 13th storage days, thus showing that the storage period was increased by $Ulmus$ $pumila$ L. At $25^{\circ}C$, the total cell count was 4.6-5.0 log CFU/g on 0 day and continuously increased during the storage period. It had increased to 8.9-9.5 log CFU/g on the seventh storage day, and no differences were shown according to the additive content of $Ulmus$ $pumila$ L. extract. (3) On the sensory characteristics of $Ulmus$ $pumila$ L. nonglutinous and glutinous sikhe, the $Ulmus$ $pumila$ L. nonglutinous sikhe to which 20% $Ulmus$ $pumila$ L. extract was added showed the highest overall-acceptability value ($4.23{\pm}0.95$), whereas the $Ulmus$ $pumila$ L. glutinous sikhe to which 40% $Ulmus$ $pumila$ L. extract was added showed the highest overall-acceptability value ($3.95{\pm}0.95$). The sikhe to which 20 and 40% $Ulmus$ $pumila$ L. extracts were added showed significantly high taste, flavor, sweetness, and overall-preference values (p<0.05).

Relation between Tuffier's Line and Spondylolisthesis (척추전방전위증과 Tuffier's line 높이와의 상관관계)

  • Kim, Han-Kyum;Hong, Soon-Sung;Yom, Sun-Kyu;Jin, Eun-Seok;Jung, Hae-Chan
    • The Journal of Churna Manual Medicine for Spine and Nerves
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    • v.3 no.2
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    • pp.37-42
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    • 2008
  • Objectives : One of the most important cause of spondylolisthesis is it's epidemiological structure and L5's stability takes a significant role. The purpose of this study is to assess the difference of the Tuffier's line among of Spondylolythesis patients. Methods : We analyzed the Anterior view of lumbar spine checked at erect position on 60 patients who had been diagnosed as spondylolythesis. We investigated the Tuffier's Line on X-ray film. Results and Conclusions : Age distribution was 15 to 66 and the average was 47.81. Men were 19 cases(31.6%) and women were 41 cases(68.4%). Compared to men, women were more exposed to spondylolisthesis and for the age distribution, 50's showed the biggest portion. Group of normal people showed proportion of 14.3% at L4, 44% at L4/5 and 41.7% at L5 each. And group of patients showed proportion of 48.4% at L4, 35% at L4/5 and 51.6% at L5 each. Comparing these results, significance probability was 0.004(<0.05) which was significant. As the results of comparing the relation between L4/5 and L5/S1 patients, Normal group showed average of 3.33 which were close to L4/5. When there are spondylolisthesis at L4/5, averege was 3.33, placed at lower part of the vertebra body. When there are spondylolisthesis at L5/S1, averege was 3.566, placed between lower part of the veterbra body of L4 and L4/5. The p value of Normal group and L4/5 spondylolisthesis patient group was 0.022(p<0.05) which was significant. But the p value of Normal group and L5/S1 spondylolisthesis patient group was 0.0239 which was not significant. Also p value of L4/5 spcndylolisthesis patient group and L5/S1 spondylolisthesis patient group was 0.721 which was also not significant.

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Quality Characteristics and Antioxidant Activities of Noodles added with Spergularia marina L. Griseb Powder (세발나물 분말 첨가 국수의 품질 특성 및 항산화 활성)

  • Chang, Hyesun;Kim, Minseon;Kim, Minzy;Lee, Jisuk;Kim, Yaeboon;Sim, Ki Hyeon
    • Journal of the East Asian Society of Dietary Life
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    • v.27 no.1
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    • pp.50-60
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    • 2017
  • This study evaluated the quality characteristics and antioxidant activities of Spergularia marina L. Griseb powder from halophyte plants added to noodles at ratios of 0%, 0.5%, 1.0%, 1.5%, and 2.0% in order to examine its applicability as a substitute for salt. For quality characteristics of noodles with Spergularia marina L. Griseb powder, pH increased (p<0.05) and salinity decreased (p<0.01) with higher added Spergularia marina L. Griseb powder content. Water absorption ratio decreased (p<0.01) while turbidity decreased (p<0.001) with greater addition of Spergularia marina L. Griseb powder. However, volume expansion ratio increased with greater addition of Spergularia marina L. Griseb powder, but there was no significant difference. For chromaticity, L value and a value decreased (p<0.001) while b value increased (p<0.001) with greater addition of Spergularia marina L. Griseb powder. For texture, hardness (p<0.001), gumminess (p<0.001), and cohesiveness (p<0.01) increased with greater amount of added Spergularia marina L. Griseb powder; however, there were no significant differences in adhesiveness, springiness, and chewiness according to the amount of added Spergularia marina L. Griseb powder. In the sensory evaluation, for color, the score was 5.55 points when 1.5% Spergularia marina L. Griseb powder was added, which was the best preference (p<0.001); for flavor, preference was best (5.64 points) when 2.0% Spergularia marina L. Griseb powder was added; for taste, preference was best (5.36 points) (p<0.001) when 2.0% Spergularia marina L. Griseb powder was added; for overall preference (overall quality) the score was 5.55 points when 1.0% Spergularia marina L. Griseb powder was added, which was the best preference (p<0.001). For antioxidant activities, antioxidant activities including total phenol content, total flavonoid content, and DPPH free radical scavenging activity increased (p<0.001) with the amount of added Spergularia marina L. Griseb powder. As a result of the above research, preference was the highest and quality was excellent overall when 1.0% Spergularia marina L. Griseb powder was added. Thus, addition of 1.0% Spergularia marina L. Griseb instead of salt would be desirable.

Physiochemical Characteristics of Lactobacillus acidophilus KH-l Isolated from the Feces of a Breast-Fed Infant

  • Yu, K.H.;Kang, S.N.;Park, S.Y.
    • Preventive Nutrition and Food Science
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    • v.10 no.4
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    • pp.333-339
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    • 2005
  • Three lactobacillus strains, two from infant feces, and one from cow's milk, were selected among 172 isolates, from multiple sources, for further study based on the antimicrobial activities against six strains of pathogenic bacteria and identified as Lactobacillus acidophilus. The strains revealed a wide scope of spectrum against pathogenic bacteria. Viable Lactobacillus acidophilus KH-l cell counts at pH 2.0 were slightly decreased to $1.42\times10^7$ CFU/mL from $4.18\times10^7$ CFU/mL, while remaining at $3.42\times10^7$ CFU/mL at pH 4.0 with the survival rate of $33.97\%\;and\;81.82\%$, respectively. At the concentration of $0.1\%$ oxgall, L acidophilus KH-l kept growing up to $3.12\times10^7$ CFU/mL with a mean growth rate constant (k) of 0.25, and cell number was slightly decreased to $1.21\times10^7$ CFU/mL (k=0.19) with $0.3\%$ oxgall, but remained at $7.6\times10^6$ CFU/mL (k=0.17) with $0.5\%$ oxgall. L. acidophilus KH-l had a $D_{60}$ value of 7.14, with viable cell numbers $1.4\times10^5$ CFU/mL after heat treatment at $60^{\circ}C$ for 30 minutes. Stability of L acidophilus KH-l at $-20^{\circ}C$ was significantly higher, when the strain was cultivated under the optimum growth temperature $(54.41\%\;and\;54.35\%)$ than at the temperature $(13.53\%)$.

Nitrite-Scavenging and Antioxidant Activities of Wood Vinegar (목초액의 아질산염 소거 및 항산화 활성)

  • 정창호;심기환
    • Food Science and Preservation
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    • v.9 no.3
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    • pp.351-355
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    • 2002
  • The purpose of this study was to investigate the nitrite scavenging, eletron donating activity and antioxidant activity of wood vinegar on soybean oil. Wood vinegar was added to soybean oil in the quantities of 0.5, 1 and 5%. Nitrite scavenging effect of all concentrations diminished at higher pH, while in the case of pH 1.2, it showed a nitrite scavenging effect of more than 80% at concentration above of 100 ㎕/mL. The electron donating activity was about 80% at concentration above of 50 ㎕/mL. Soybean oil without the addition of wood vinegar was used as a control. The oxidation of these samples was determined by measuring the peroxide value(POV), thiobarbituric acid(TBA) value and acid value(AV). When wood vinegar was added 1 and 5%, the peroxide value wag lower than both the control and 0.1% BHT. TBA value were in the 5% wood vinegar tallowed by 1% wood vinegar, 0.1% BHT, 0.5% wood vinegar and the control, respectively. The results showed that the acid values were lowest in 5% wood vinegar, followed by the 0.1% BHT, 1% wood vinegar, 0.5% wood vinegar and finally the control.

Characteristics Analysis of Agricultural Reservoir Slope Vegetation for Judging the Leakage Zone (누수구역 판단을 위한 농업용 저수지 사면식생의 특성 분석)

  • Park, Seung Ki;Kim, Hyun Soo;Kim, Nam Ho;Lee, Jong Bo;Jung, Nam su
    • Journal of Korean Society of Rural Planning
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    • v.23 no.2
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    • pp.87-96
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    • 2017
  • This study is a basic research with the aim of developing the method of judging the leakage zone by grasping the habitat characteristic of agricultural reservoir slope in inhabiting characteristics appear differently according to natural inhabiting environment. To this end, this study is intending to investigate slope vegetation using a quadrat technique at Sinheung reservoir located at Gwangsi-myeon, Yesan-gun, Chungnam, and to perform the analysis of importance value using relative frequency and relative coverage, etc. Also, this study intended to present the necessity of having to consider the eco-system of the relevant region in time of a reservoir slope afforestation for the time to come by suggesting that the reservoir slope vegetation after a stable period becomes similar to the regional vegetation by comparing this study result with the existing research which carried out the analysis of importance value of forest vegetation for Yesan Region. The reservoir slope vegetation is similar to the indicator species which appear in the regional forest vegetation, so there was a need to select afforestation species in the light of this in time of slope afforestation. As a result of the analysis of the importance value, this study grasped that there was an emergence characteristic similar to the vegetation at a birthplace of a forest fires because growth and development of forest trees, and perennial plants were restricted by annually implemented brush-cutting work, etc.; however, indigo plant and bush clover, etc. were found to show the characteristic differing from this. Consequently, this study was able to confirm that there is the necessity of having to create the Importance Value Table suited for reservoir slopes by region through a lot more data construction in the near future.