• The Journal of the Korea Contents Association
• /
• v.12 no.10
• /
• pp.385-394
• /
• 2012

The aim of this study was to determine the effectiveness of diagnostic range for BMD measurement tools(DEXA, QUS, and RA) to health examination in transitional ages. In standard T-score -2.5 of DEXA, cutoff value by RA is -1.675(sensitivity: 70.0%, specificity: 63.7%) and cutoff value by QUS is -1.733(sensitivity: 70.4, specificity: 59.5%), also T-score -3.0 of DEXA, cutoff value by RA is -2.325(sensitivity: 70.0%, specificity: 42.9%) and cutoff value by QUS is -2.323(sensitivity: 70.4, specificity: 56.8%). There was, however, no significant difference in standard DEXA(lumbar spine and femur) between RA and QUS by repeat measurement(precision), and correlation were without effect. ROC analysis showed that all methods are qualified for BMD measurement tools to health examination in transitional ages; however, the different sensitivities and specificities of the methods, as well as age and gender, calibration parameters for diagnostic tests have to be considered.

• Journal of Acupuncture Research
• /
• v.19 no.4
• /
• pp.124-131
• /
• 2002

Objective : The purpose of this study is to research for the formation of Ohaeng-acupuncture. Methods : I refered to ${\ll}$Classic on Difficulty${\gg}$ (難經), ${\ll}$Ling Shu${\gg}$ (靈樞), ${\ll}$Zhen Jiu Ju Ying${\gg}$ (針灸聚英), ${\ll}$Yi Xue Ru Men${\gg}$ (醫學入門) and annotations were excerpted and record that notied the Ohaeng-acupuncture. Results : The results obtained as follows. 1. ${\ll}$Ling Shu${\gg}$ "Sheng Ze Xie Zhi, Xu Ze Bu Zhi"(盛則瀉之, 虛則補之) united with "Ying Sui Bu Xie"(迎隨補瀉), developed the principle of "Qu Xue" in ${\ll}$Classic on Difficulty${\gg}$. 2. ${\ll}$Classic on Difficulty${\gg}$ explained the interdependent relations, interrestraining relations, the relations of subjugation and reverse restriction in illness condition between the five viscera according to the theory of generation, restriction, subjugation and reverse restriction in five elements. ${\ll}$Classic on Difficulty${\gg}$ united five shu points (五兪穴) with five elements. 3. Zi jing Bu xie according to Xiang Sheng theory is develped from ${\ll}$Classic on Difficulty${\gg}$ "Xu Ze Bu Qu Mu, Shi Ze Xie Qi Zi"(虛則補其母 實則瀉其子) to ${\ll}$Classic on Difficulty${\gg}$ , ${\ll}$Zhen Jiu Ju Ying${\gg}$. 4. Ta jing Bu xie according to Xiang Sheng theory is develped from ${\ll}$Tu Zhu Nan Jing${\gg}$ to ${\ll}$Yi Xue Ru Men${\gg}$. 5. The principle of treatment according to Zi-Ta jing Bu xie based Xiang Ke is develped from ${\ll}$The seventy fifth Difficulty Classic on Difficulty${\gg}$ to Sa Am Do In(舍岩道人).

• The Korean Journal of Pesticide Science
• /
• v.20 no.4
• /
• pp.312-318
• /
• 2016

This study investigated the reduction of residual pesticide in soil by using eight kinds of soil amendments such as shell, quick lime, dolomite, silicic acid, leaf mold, oil cake, bed soil and husk. A total of ten pesticides most frequently detected in agricultural soil were selected (azoxystrobin etc.) and soil amendments were treated in soils at a 2% application rate and incubated for 7 days. Pesticides were analyzed by HPLC-MS/MS with QuEChERS-based sample preparation procedure and pH was measured on 1, 3 and 7 days. This study showed that, soil amemdments were effective in reducing pesticides after 7days of incubation. Over 90% of azoxystrobin, cadusafos, chlorpyrifos, fluquinconazole, imidacloprid, isoprothiolane and procymidone were decomposed from soils amended with 2% quick lime, whereas the concentration of boscalid, dimethomorph and triycyclazole were not decreased. The soil pH increased to 12.8-12.9 in soil amended with quick lime, but other soil conditioners did not change the soil pH. Quick lime was particularly effective in reducing residual pesticides.

• The Journal of the Korea Contents Association
• /
• v.11 no.8
• /
• pp.198-203
• /
• 2011

The BMD difference depending on QCT and QUS, whose usages are recently being increased for the test of BMD, was accessed for 106 subjects of a general health examination who were aged between 24~69 year-old and results were derived as follows. The measured value of BMD by QCT and QUS showed significant correlation in general (p>0.05). In terms of the difference generated between the measurement methods depending on sexes, the female subjects showed significantly low T-score in the test made through QUS (p<0.05). Depending on ages, there was T-score difference among the subjects aged more than 40 year-old within significant range (p<0.05). When it came to the effect depending on heights and on weights, no group showed significant difference and in a group with less than 22.9 of BMI value, the T-score was measured significantly low when testing it through QCT while other groups were not affected by any testing methods. Likewise, it may require a different measurement method when it comes to the measurement of bone mineral density depending on sex, age, height, and BMI among patients. Thus, it suggests obtaining accurate data by conducting various testing methods in case of a special occasion.

• Journal of the Korean Institute of Traditional Landscape Architecture
• /
• v.32 no.4
• /
• pp.50-60
• /
• 2014

This study aims to sort out the plants in "Poetry of the South" what is in the written by Qu Yuan in the Kingdom of Chu and to analyze the utility and appreciation of plants. The conclusions are as follows. First, there were 80 plant names and 56 plant species were sorted out, and these results can confirm that the plants were existed in the 340-277 BC. Second, through analyzing the utility of the plants, herba lycopi, basil etc. as the garden plants; lotus, chrysanthemum etc. as the ornamental plants; galangal and cannabis sativa as the present; basil, musa basjoo, etc. as the sacrifice plants. Third, through analyzing the appreciation of the plants, golden birch, chrysanthemum etc. for gustatory appreciation; herba lycopi and pine tree etc. for tactile appreciation; bamboo for sensory appreciation. Forth, through analyzing the token of the plants, calamus and basil etc. are the symbol of personal character noble; wormwood and caltrop etc. are the symbol of villain. Based on the research of "Poetry of the South", it can help to understand the plants culture in 340-277 BC, and it will be a useful information for the plant design.

• Korean Journal of Environmental Agriculture
• /
• v.39 no.3
• /
• pp.246-252
• /
• 2020

BACKGROUND: Pesticides are broadly used to control weeds and pests, and the residues remaining in crops are managed in accordance with the MRLs (maximum residue limits). Therefore, an analytical method is required to quantify the residues, and we conducted a series of analyses to select and validate the quick and simple analytical method for tolpyralate in five agricultural products using QuEChERS (quick, easy, cheap, effective, rugged and safe) method and LC-MS/MS (liquid chromatography-tandem mass spectrometry). METHODS AND RESULTS: The agricultural samples were extracted with acetonitrile followed by addition of anhydrous magnesium sulfate, sodium chloride, disodium hydrogencitrate sesquihydrate and trisodium citrate dihydrate. After shaking and centrifugation, purification was performed with d-SPE (dispersive-solid phase extraction) sorbents. To validate the optimized method, its selectivity, linearity, LOD (limit of detection), LOQ (limit of quantitation), accuracy, repeatability, and reproducibility from the inter-laboratory analyses were considered. LOQ of the analytical method was 0.01 mg/kg at five agricultural products and the linearity of matrix-matched calibration were good at seven concentration levels, from 0.0025 to 0.25 mg/L (R²≥0.9980). Mean recoveries at three spiking levels (n=5) were in the range of 85.2~112.4% with associated relative standard deviation values less than 6.2%, and the coefficient of variation between the two laboratories was also below 13%. All optimized results were validated according to the criteria ranges requested in the Codex Alimentarius Commission (CAC) and Ministry of Food and Drug Safety (MFDS) guidelines. CONCLUSION: In conclusion, we suggest that the selected and validated method could serve as a basic data for detecting tolpyralate residue in imported and domestic agricultural products.

• Journal of Food Hygiene and Safety
• /
• v.33 no.5
• /
• pp.354-360
• /
• 2018

This study presents a method validation for extraction and quantitative analysis of trichothecene mycotoxins in nuts based on quick, easy, cheap, effective, rugged, and safe (QuEChERS) approach for extraction and enhanced matrix removal (EMR)-lipid-disperive-SPE (d-SPE) cleanup method, with detection and quantification by high-performance liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS) in positive- and negative-ion modes. Linearity, precision, and accuracy were validated for LC-MS/MS methods. Results obtained with LC-MS/MS were linear, with correlation coefficient ($R^2$) of 0.998. Limits of detection and quantification for mycotoxins were $0.41-3.57{\mu}g/kg$ and $1.23-10.82{\mu}g/kg$, respectively. Intra- and inter-day precisions (RSD, %) were 0.40-8.44% and 1.93-12.46%, respectively. Results indicated to be rapidly and accurately identifying trichothecene mycotoxins and may be used as a suitable safety management method for nuts and nuts related commodities.

• Bulletin of the Korean Mathematical Society
• /
• v.52 no.2
• /
• pp.367-376
• /
• 2015

In this paper, we classified finite p-groups G such that $$C_G(x)/&lt;x&gt;$$ is cyclic for all non-central elements $x{\in}G$. This solved a problem proposed By Y. Berkovoch.

• Proceedings of the Korea Contents Association Conference
• /
• 2015.05a
• /
• pp.311-312
• /
• 2015

시대에 따라 스크린에 훌륭한 애니메이션 작품들이 존재해왔다. 이를 통해 수많은 훌륭한 애니메이션 캐릭터들도 함께 탄생하였다. 이러한 캐릭터의 이미지 특징들은 성격의 명암이 뚜렷하고, 시간이 흘러도 늙거나 변치 않는다는 요소들을 가지고 있다. 스토리는 캐릭터를 완성한다. 그러나 다른 한편으로는 캐릭터가 스토리의 완성도를 높이게 됨을 부인할 수 없다. 애니메이션 캐릭터가 가지는 성격의 중요성은 아무도 부정할 수 없다. 애니메이션에서 어떻게 뚜렷한 성격과 개성을 가진 캐릭터를 묘사를 해왔는지 본 논문은 시대에 따른 캐릭터 묘사의 요소를 분석하여, 캐릭터의 성격과 개성의 묘사방법을 찾아 보고자 한다.

• Journal of the Korean Mathematical Society
• /
• v.46 no.6
• /
• pp.1165-1178
• /
• 2009

In this paper we classify finite groups whose nonnormal subgroups are of order p or pq, where p, q are primes. As a by-product, we also classify the finite groups in which all nonnormal subgroups are cyclic.