• Title/Summary/Keyword: Nei

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Effects of habitat differences on the genetic diversity of Persicaria thunbergii

  • Nam, Bo Eun;Nam, Jong Min;Kim, Jae Geun
    • Journal of Ecology and Environment
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    • v.40 no.2
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    • pp.84-88
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    • 2016
  • To understand the effects of habitat characteristics on the genetic diversity of Persicaria thunbergii, three sites of different environmental conditions in a water system were surveyed. Site A was the closest to the source of the water system, and there was a dam between sites A and B. Site C is located on the lowest downstream in the water system. Vegetation survey of four quadrats at each site was performed, and soil samples were collected for physicochemical analysis. Random amplification of polymorphic DNA (RAPD) analysis of ten P. thunbergii individuals at each site was conducted to calculate population genetic diversity and genetic distance among populations. Soil was sterile sand at site A, whereas loamy soil at sites B and C. A pure stand of P. thunbergii appeared at site A, while other species occurred together (such as Humulus japonicus and Phragmites australis) at sites B (Shannon-Wiener index; $H_B=0.309$) and C ($H_C=0.299$). Similar to the species diversity, genetic diversity (Nei's gene diversity; h) within population of site A ($h_A=0.2381$) was relatively lower than sites B ($h_B=0.2761$) and C ($h_C=0.2618$). However, site C was separated from sites A and B in genetic distance rather than the geographical distance (Nei's genetic distance; A~B, 0.0338; B~C, 0.0685; A~C, 0.0833).

A Study on Zhang Jie Bin's Qi Determinism of the Human Nature (명의(名醫) 장개빈(張介賓)의 기정품성론(氣定品性論) 연원고(淵源考) -송유(宋儒) 장재(張載)의 기질지성론(氣質之性論)과의 비교를 중심으로-)

  • Won, Jong Sil
    • Journal of Korean Medical classics
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    • v.17 no.4
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    • pp.69-80
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    • 2004
  • Nei Ching referred to as a canon of Chinese medicine is a comprehensive life philosophy that applied the life principle of the universe to the human body to combine the philosophical concept with the human nature as well as the functions of the body's organs. The book formed a complete system of a Qi Philosophy by using the medical terminology and theory based on the concept of Qi. It is remarkable that the Qi philosophy of Chang Tsai, who is a Neo-Confucianist and representative scholar of Qi philosophy in the era of Song Dynasty, has been influenced by the Qi philosophy in Nei Ching and developed into a Confucian school Furthermore, Chang Tsai's theory, in effect, impacted upon the rise of Qi Determination of the Human Nature in Medicine of Zhang Jie Bin who is a profound thinker in the era of Ming dynasty. As mentioned above, both traditional philosophy and medical philosophy in china in regard to Qi Theory have interacted and developed each other. This paper is to make a comparative study of the Qi Determination of the Human Nature proposed by Chang Tsai and Zhang Jie Bin and to trace the orgin of the Qi Determination of Human Nature.

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Genetic Analysis of Three Overwintering Diamondback Moth, Plutella xylostella (Linne), Populations in Korea (국내 세 지역의 배추좀나방(Plutella xylostella (Linne)) 월동집단에서 나타나는 유전변이 분석)

  • 김용균;박효찬;정명섭
    • Korean journal of applied entomology
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    • v.40 no.3
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    • pp.227-233
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    • 2001
  • Four polymorphic allozymes were used for genetic analysis of overwintering populations of field diamondback moth, Plutella xylostella (Linne). Different allele frequencies were found among three local populations of Andong, Youngchon, and Yangsan in all loci. Two allozyme loci (acid phosphatase and phosphoglucomutase) showed significant deviation from Hardy-Weinberg equilibrium in allele frequencies among these populations. Estimated Nei's genetic distance varied from 0.0151 between Yangsan and Youngchon to 0.0877 between Andong and Youngchon. Compared with the previous genetic distances in this moth, a little higher genetic differentiation among these overwintering populations suggests that there would be a specific genetic bottleneck in each local population during overwintering period.

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Factors influencing the quality of life by dry eyes of university students (대학생의 안구건조가 삶의 질에 미치는 요인)

  • Jung, Eunja;Lee, Yumi
    • The Journal of the Convergence on Culture Technology
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    • v.7 no.1
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    • pp.170-174
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    • 2021
  • The purpose of this study is descriptive survey to quality of life by dry eyes experience in university students. The Korean version of the National eye institute visual functioning questionnaire (NEI-VFQ) was used to evaluate the quality of life. As a result of the study, 18.4% of the participants were diagnosed with dry eyes, and 63.2% experienced subjective dry eyes experience. The findings showed that the factors influencing the visual quality of life was wearing glasses, and the explanatory power for this 13.6%. Further research is needed considering the length of wearing glasses, contact lenses and severity of dry eyes.

SSC risk significance in risk-informed, performance-based licensing of non-LWRs

  • James C. Lin
    • Nuclear Engineering and Technology
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    • v.56 no.3
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    • pp.819-823
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    • 2024
  • The main criteria used in NEI 18-04 to define SSCs as risk-significant include (1) the SSC is required to keep all LBEs within the F-C target, and (2) the total frequency with the SSC failed exceeds 1% of the limit for at least one of the three cumulative risk metrics used for evaluating the integrated plant risk. The first one is a reasonable criterion in determining the risk significant SSCs. However, the second criterion may not be adequate to serve the purpose of determining the risk significance of SSCs. In the second criterion, the cumulative risk metric values representing the integrated plant risk (less the preventive and mitigative effects of the SSC being evaluated) are compared to a risk limit that represents a very small contribution to the overall integrated plant risk, which corresponds appropriately to the contributions from individual SSCs. The easiest approach to redefine the NEI 18-04 definition of risk-significant SSCs in relation to the integrated plant risk metrics is to compare the difference, between the risk metric value calculated with the SSC failed and the risk metric value calculated with the SSC credited, with 1% of the risk limit established for the integrated plant risk metrics.

A Study in the Daqi- Theories by Yu Chang and Zhang Xi Chun (천담유창여장석순적 「대기」론)

  • Kum Ji Soo;Keum Kyung Soo;Jeong Sook Ei
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.18 no.5
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    • pp.1232-1236
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    • 2004
  • In the Far-Eastern traditional medicine, Oi[Energy] implies a wide range of meaning and is emphasized. There is nothing that is not related to this Qi, as seen in physiology, pathology, the relationship between human body and nature, the movements of intestines and gyeongnak[energy networks], the process of outbreak and change of illness, remedial laws, the features and effects of drugs, and so on. Accordingly, Nei Jing also says, 'every sickness arises from OL' The Qi has multi-meanings, and each of lots Of past physicians researched and analyzed it in different perspective, thus making the Qi-theories much richer. Still. there were not so many physicians who discussed the theme of Daqi. The denomination of Daqi is seen in Nei Jing and Jin Gui Yao Lue, and the physicians like Yu Chang in Ming dynasty and Zhang Xi Chun in Cheng dynasty, etc. applied and utilized Daqi by exploring its functional actions for human life and associating it with clinical practices. Yu Chang said that Daqi is Xiong Zong Yangqi[Positive Energy in Breast] governing every Qi, and that if this Qi is full, it spreads through body and protects the body from sickness, and vice versa. Summarizing his researches on the Daqi in Jin Gui Yao Lue and on the opinions of Yu Chang as well as his experiences, Chang Xi Chun maintained that the Qi accumulated in breast must be named Daqi, which constitutes the contents of Zongqi[Chief Energy] mentioned in Nei Jing. Once the Qi is vacant, breathing is not smooth, whole body is enervated, spirit becomes dim, thinking ability falls drastically. Furthermore, if the Qi is extremely vacant or more worsens, breathing stops. And he prescribed the medicines including Sheng Xian Tang as remedies against the symptom of Daqi XiaXian[Fall in Great Energy]. The recognitions of Daqi by Yu Chang and Zhang Xi Chun are consistent with each other. At any rate, their theories and prescriptions may be high in practical value in contemporary clinics.

Evaluation of Vision-Specific Quality of Life between Spectacles and Contact Lens Wearers (안경과 콘택트렌즈착용자의 삶의 질 평가)

  • Kang, Sue Ah;Kim, Jung Hee
    • Journal of Korean Ophthalmic Optics Society
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    • v.12 no.3
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    • pp.111-115
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    • 2007
  • Purpose: The aim of this study was to assess vision-related quality of life and modes of refractive error correction. We administered NEI-VFQ (National Eye Institute Visual Function Questionnaire) to 137 subjects in two modes of refractive error correction: spectacles and contact lens wearers. The NEL-VFQ was developed to assess vision-related quality of life with respect to 1) visual symptoms 2) social function as well as difficulty with tasks and symptoms 3) economic issues and health concerns 4) psychological well-being. The NEL-VFQ was translated from English into Korean. Methods: All data were analyzed using SAS 8.0. Student's T-test was conducted to determine significant differences in each of the subscale (${\alpha}=0.05$). Result: The Peripheral Vision subscale score ($mean{\pm}SD$) was $52.2{\pm}32.7$ for the spectacle wearers, $88.6{\pm}18.1$ for contact lens wearers; the spectacle wearers' Peripheral Vision score was significantly lower than contact lens wearers (p=0.0001). There were also significant differences between two groups detected in Color Vision (p=0.001), General Vision (p=0.01) and Health Perception (p=0.01). Conclusion: Contact lens wearers and spectacle wearers were mostly high vision-related quality of life except General Vision and Health Perception. Especially, contact lens wearers were higher vision-related quality of life than spectacle wearers. Further studies on developing of good quality of contact lens will be needed to improve quality of life in ametropia.

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Performance of Northern Exposure Index in Reducing Estimation Error for Daily Maximum Temperature over a Rugged Terrain (북향개방지수가 복잡지형의 일 최고기온 추정오차 저감에 미치는 영향)

  • Chung, U-Ran;Lee, Kwang-Hoe;Yun, Jin-I.
    • Korean Journal of Agricultural and Forest Meteorology
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    • v.9 no.3
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    • pp.195-202
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    • 2007
  • The normalized difference in incident solar energy between a target surface and a level surface (overheating index, OHI) is useful in eliminating estimation error of site-specific maximum temperature in complex terrain. Due to the complexity in its calculation, however, an empirical proxy variable called northern exposure index (NEI) which combines slope and aspect has been used to estimate OHI based on empirical relationships between the two. An experiment with real-world landscape and temperature data was carried out to evaluate performance of the NEI - derived OHI (N-OHI) in reduction of spatial interpolation error for daily maximum temperature compared with that by the original OHI. We collected daily maximum temperature data from 7 sites in a mountainous watershed with a $149 km^2$ area and a 795m elevation range ($651{\sim}1,445m$) in Pyongchang, Kangwon province. Northern exposure index was calculated for the entire 166,050 grid cells constituting the watershed based on a 30-m digital elevation model. Daily OHI was calculated for the same watershed ana regressed to the variation of NEI. The regression equations were used to estimate N-OHI for 15th of each month. Deviations in daily maximum temperature at 7 sites from those measured at the nearby synoptic station were calculated from June 2006 to February 2007 and regressed to the N-OHI. The same procedure was repeated with the original OHI values. The ratio sum of square errors contributable by the N-OHI were 0.46 (winter), 0.24 (fall), and 0.01 (summer), while those by the original OHI were 0.52, 0.37 and 0.15, respectively.

A study on ${\ulcorner}$HuangDiNeiJing(黃帝內經)${\lrcorner}$ ${\ulcorner}$SanBuJiuHouLun(三部九候論)${\lrcorner}$ ("황제내경(黃帝內經)" 삼부구후론(三部九候論)에 대한 연구)

  • Park, Hyun-Kook;Kim, Ki-Wook
    • Journal of Korean Medical classics
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    • v.19 no.1 s.32
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    • pp.26-40
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    • 2006
  • It is generally understood that San Bu Jiu Hou is the pulse form at CunGuanChi(寸關尺) as in ${\ulcorner}$NanJing(難經)${\lrcorner}$. However, it is totally different in ${\ulcorner}$HuangDiNeiJing${\lrcorner}$. This only appears in tew chapters of ${\ulcorner}$SuWen(素問)${\lrcorner}$ and does not appear in ${\ulcorner}$LingShu(靈樞)${\lrcorner}$. SanBu in ${\ulcorner}$SuWen SanBuJiuHouLun${\lrcorner}$ refers to top, middle, bottom and each part is divided into 3 parts, Tian(天), Di(地), Ren(人) to form JiuHou, and through Jiu Hou, not only does it diagnose ShenZang(神臟) and XingZang(形臟), but also goes on to form a diagnostic system by fusing diagnostic skill and treatment into one. ${\ulcorner}$JiuZhenShiErYuan(九針十二原)${\lrcorner}$ discusses detailed shapes and functions of nine types of acupuncture, and the ${\ulcorner}$GuanZhen(官針)${\lrcorner}$ explains how to manipulate Jiu Zhen adequately, but there is more to it than just shape and function in techniques of acupuncture. It is because it fuses (or merges) pathology, diagnostics, treatment etc to form a single diagnosis system. ${\ulcorner}$JinFu(禁服)${\lrcorner}$ discusses about nine types of acupuncture of pulse form and effect, which are treatment means based on RenYingCunKouMaiFa(人迎寸口脈法). Various pulse daignosises exist in ${\ulcorner}$HuangDiNeiJing${\lrcorner}$, but those influence of future generations can be divided into SanBuJiuHouMaiFa(三部九候脈法) and RenYingCunKouMaiFa(人迎寸口脈法), and which medical ideologies this kind of pulse daignosis originates from should be discusssed. We will finally expolre and report the process its development into 寸尺脈(Cun Chi Mai).

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The Study on The variational Forms of Sa-Ahm's 5 Element Acupuncture Method (사암침법(舍巖鍼法)의 변형(變形)에 관(關)한 연구(硏究))

  • Kim, Dar-Hoo;Kim, Jung-Han
    • Korean Journal of Oriental Medicine
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    • v.2 no.1
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    • pp.337-380
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    • 1996
  • 'Nei Jing(內徑)' first defined the interrelationship of the true and tile false between evil factor affecting health(雅氣) and vital essence energy(精氣). According to 「'Nei Jing(內徑)', the above interrelationship is explained as 'If state of evil domination is considered as sthenia-syndrome(雅氣盛則實), if the consumption of healthy energy Is considered as asenia-syndrome(精氣尊則虛): 'Nei Jing(內徑)', proposed major features of the medicall treatment by 'regluate the vatal energy of asthenia and sthenia, treat the sthenia-syndrome by purgation, and treat the asenia-syndrome by therapy of invigoration(調其氣之虛實, 實則瀉之, 虛則補之): The above interrelationship was interpreted as 'treat the asthenia-syndrome of child organ by invigorating the mother organ(虛者補其母)'in the 69th of 'The Classic on Difficulty',(難經 六十九難). Go-Mu(高武) of Myung-dynasty describe therapy for invigoration and purgation of itself-meridian(自經 補瀉法), which locating acupuncture points according to the Therorr of Five Element in the five shu points of itself-meridian(自經 五유穴), based on the generation in the ${\ulcorner}$A Synthetical Book of Acupuncture and Moxibustion(針灸聚英)${\lrcorner}$, Sae-hyun Jang(張世賢) further extended location acupuncture points of the five shu points to the other-meridian in the ${\ulcorner}$Gyeo Jung Do Ju Nan Gyung(校正圖註難經)${\lrcorner}$ Sa-Ahm's 5 Element Acupuncture Method(舍嚴五行鍼法) was originated in 1644, the middle of the Yi-dynasty. It linked the reinforcing and reducing in acupuncture therapy which incorporated tlle asthenia-syndrome and sthenia-syndrome of the hollow organs, based on principle of the Yin Yang 5 Element Theory(陰陽五行學說), not only to the generation in the 5 element(相生關係) but also to the restriction in the 5 element(相剋關係). Furthermore it was devised for the medical treatment by comning therapy for invigoration and purgation of itself-meridian(自經 補瀉法) with that of the other-meridian. Even though many original forms(正形) of the therapy for invigoration and purgation of the Yin Yang 5 Element Theory comply with the principle of the generation and the restriction based on the principle of the Yin Yang 5 Element Theory are abailable, variational forms(變形) are also recognized by examining the nature of the Sa-Ahm's 5 Element Acupuncture Method(舍嚴五行鍼法), For this reason, it is very difficult to understand the Sa-Ahm's 5 Element Acupuncture Method(舍嚴五行鍼法) thoroughly. therefore, those variational forms are obstacles for the beginners to study the Sa-Ahm's 5 Element Acupuncture Method. In order to understand the principle of the practical clinical application of the Sa-Ahm's 5 Element Acupuncture Method, this study investigated which principle was based on the variations of the locating acupuncture points' method for the acupuncture prescription.

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