• Korean journal of applied entomology
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• v.44 no.2
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• pp.131-137
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• 2005

Seasonal occurrence of the egg parasitoid of bugs, Ooencyrtus nezarae (Hymenoptera: Encyrtidae), was monitored at soybean fields and university campus using traps baited with aggregation pheromone of bean bug, Riptortus clavatus, in Jinju, Gyeongnam province, Korea. The female O. nezarae captured at university campus in 2003 and 2004 was 317.5 and 103.4 times as many as males, respectively, and it was 12.6 times at soybean field in 2004. The female began to occur from late August, showing its peak around September 20 at soybean field in 2004. At university campus in 2003 and 2004, the female began to occur from mid or late August, and showed its peak early or mid September. At the two monitoring sites the catches of female sharply declined after October The E2HZ3H only showed attractiveness to O. nezarae, among three components of the aggregation pheromone of bean bug, (E)-2-hexenyl (Z)-3-hexenoate (E2HZ3H), (E)-2-hexenyl (E)-2-hexenoate (E2HE2H), and myristyl isobutyrate (MI). A mixture in a ratio of 20:20:10 or 16.7:16.7:16.7 of E2HZ3H:E2HE2H:MI attracted significantly more females than the mixture of 7:36:7 ratio did. This higher attractiveness of the former two blends may be attributed to the higher amounts of E2HZ3H in the blends.

• Journal of Animal Reproduction and Biotechnology
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• v.35 no.2
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• pp.155-162
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• 2020

Equine follicle stimulating hormone receptor (eFSHR) has a large extracellular domain and an intracellular domain containing approximately 10 phosphorylation sites within the G protein-coupled receptor. This study was conducted to analyze the function of phosphorylation sties at the eFSHR C-terminal region. We constructed a mutant of eFSHR, in which the C-terminal cytoplasmic tail was truncated at residue 641 (eFSHR-t641). This removed 10 potential phosphorylation sites from the C-terminal region of the intracellular loop. The eFSHR-wild type (eFSHR-wt) and eFSHR-t641 cDNAs were subcloned into the pCMV-ARMS1-PK2 expression vector. These plasmids were transfected into PathHunter CHO-K1 Parental cells expressing β-arrestin 2 enzyme acceptor fusion protein and analyzed for agonist-induced cAMP response. The cAMP response in cells expressing eFSHR-t641 was lower than the response in cells expressing eFSHR-wt. EC₅₀ values of eFSHR-wt and eFSHR-t641 were 1079 ng/mL and 1834 ng/mL, respectively. eFSHR-t641 was approximately 0.58-fold compared with that of eFSHR-wt. The maximal response in eFSHR-wt and eFSHR-t641 was 24.7 nM and 16.7 nM, respectively. The Rmax value of phosphorylation sites in eFSHR-t641 was also decreased to approximately 68.4% of that in eFSHR-wt. The collective data implicate that the phosphorylation sites in the eFSHR C-terminal region have a pivotal role in signal transduction in PathHunter CHO-K1 cells, and indicate that β-arrestin is involved in coupling the activated receptors to the internalization system.

• Journal of the Korean Society of Food Science and Nutrition
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• v.28 no.6
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• pp.1355-1363
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• 1999

The purpose of this study was to investigate the effects of vitamin E on liver microsomal cytochrome P450 contents and xanthine oxidase activity in acute cadmium poisoned rats. Sprague Dawley male rats weighing 100$\pm$10g were randomly assigned to one normal and three cadmium injected groups. Cadmium injected groups were fed vitamin E free diet(0E Cd group), 40mg vitamin E per kg diet(40E Cd group) or 400mg vitamin E per kg diet(400E Cd group). Vitamin E level of normal group was 40mg per kg diet. Animals were injected intraperitoneally with 2.0mg Cd2+/kg bw for 4 days after the rats were fed diets with three different levels of vitamin E for 2 and 4 weeks. Body weight, food intake and feed efficiency ratio of cadmium injected animals, were decreased compared with those of normal group. The weights of liver and kidney in cadmium injected groups were not different from those of normal group. Cadmium contents of liver in cadmium groups were 160 fold higher those that of normal group. Accumulation of cadmium poisoned rat liver was reduced by vitamin E supplementation. Contents of blood hemoglobin and hematocrit in 0E Cd groups were decreased to 2~ 14% of those of the other groups. Contents of serum triglyceride in all experimental groups were not significantly different each other. Levels of serum total cholesterol, LDL cholesterol and antherogenic index in 0E Cd and 40E Cd groups were higher than those of normal group, while the contents of HDL cholesterol in 0E Cd and 40E Cd groups were lower than those of normal group. Xanthine oxidase(XOD) activity and cytochrome P450 contents in the liver were significantly increased in cadmium injected groups but these were reduced by vitamin E supplementations. The present results indicate that acute cadmium poisoning in rats causes increasing free radical generation systems in the liver and that leads to liver tissue damage. But these abnormalities can be reduced by dietary vitamin E supplementations.

• IMMUNE NETWORK
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• v.11 no.5
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• pp.268-280
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• 2011

Background: Dengue virus, which belongs to the Flavivirus genus of the Flaviviridae family, causes fatal dengue hemorrhagic fever (DHF) and dengue shock syndrome (DSS) with infection risk of 2.5 billion people worldwide. However, approved vaccines are still not available. Here, we explored the immune responses induced by alternating prime-boost vaccination using DNA vaccine, adenovirus, and vaccinia virus expressing E protein of dengue virus type 2 (DenV2). Methods: Following immunization with DNA vaccine (pDE), adenovirus (rAd-E), and/or vaccinia virus (VV-E) expressing E protein, E protein-specific IgG and its isotypes were determined by conventional ELISA. Intracellular CD154 and cytokine staining was used for enumerating CD4+ T cells specific for E protein. E protein-specific CD8+ T cell responses were evaluated by in vivo CTL killing activity and intracellular IFN-${\gamma}$ staining. Results: Among three constructs, VV-E induced the most potent IgG responses, Th1-type cytokine production by stimulated CD4+ T cells, and the CD8+ T cell response. Furthermore, when the three constructs were used for alternating prime-boost vaccination, the results revealed a different pattern of CD4+ and CD8+ T cell responses. i) Priming with VV-E induced higher E-specific IgG level but it was decreased rapidly. ii) Strong CD8+ T cell responses specific for E protein were induced when VV-E was used for the priming step, and such CD8+ T cell responses were significantly boosted with pDE. iii) Priming with rAd-E induced stronger CD4+ T cell responses which subsequently boosted with pDE to a greater extent than VV-E and rAd-E. Conclusion: These results indicate that priming with live viral vector vaccines could induce different patterns of E protein-specific CD4+ and CD8+ T cell responses which were significantly enhanced by booster vaccination with the DNA vaccine. Therefore, our observation will provide valuable information for the establishment of optimal prime-boost vaccination against DenV.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2003.05a
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• pp.264-267
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• 2003

B2B electronic commerce of various form is gone present and e-Catalog that is used in electronic commerce is important element middle who can express well special quality of corporation's goods and product most effectively from infinite internet space. But, e-Catalog system that is used in electronic commerce is no clear concept and consistent component etc. and is constructing dissimilar system and there is shortcoming that can not use e-Catalog information exchange and transaction thereby. Propose XML(eXtensible Markup Language) in e-Catalog's standard document format to augment interoperability in selfishness species system in treatise that see hereupon, and defined e-Catalog document structure that can process goods information configurationally because using XML Schema. Also, e-Catalog registry system that offer search, registration service using e-Catalog document that is defined by XML design and embody.

• Journal of Korean Society on Water Environment
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• v.39 no.5
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• pp.396-412
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• 2023

Species from the mayfly genus Ephemera (Order Ephemeroptera) was assessed for their physical microhabitat suitability (namely E. strigata, E. separigata, and E. orientalis-sachalinensis). Probability distribution models (Exponential, Normal, Lognormal, Logistic, Weibull, Gamma, Beta, and Gumbel) based on the data collected from 23,957 sampling units of 6,787 sites in Korea from 2010 to 2021 were used. Mode and standard deviation calculated from the best-fitting models to species distribution along a water depth gradient were 265 cm and 159 cm in E. orientalis-sachalinensis; 10 cm and 83 cm in E. strigata; 20 cm and 15 cm in E. separigata, respectively. The current velocity gradient was 22 cm/s and 40 cm/s in E. orientalis-sachalinensis; 60 cm/s and 53 cm/s in E. strigata; 82 cm/s and 25 cm/s in E. separigata, respectively. The mean diameter (phi scale) of substrate grains were -3.6 and 2.2 in E. orientalis-sachalinensis; -7.4 and 1.5 in E. strigata; -5.8 and 0.9 in E. separigata, respectively. Habitat suitability range of E. orientalis-sachalinensis was estimated to be 161~369 cm (water depth), 5~44 cm/s (current velocity), -5.2~-2.0 (mean diameter); 3~34 cm (water depth), 36~94 cm/s (current velocity), -8.1~-6.3 (mean diameter) for E. strigata; 12~32 cm (water depth), 63~96 cm/s (current velocity), -6.3~-5.2 (mean diameter) for E. separigata. In relative comparison, E. orientalis-sachalinensis was estimated to be rheophobic, eurybathophilic, and eurypsephophilic; E. strigata to be euryrheophilic, bathophobic, and lithophilic; E. separigata to be stenomesorheophilic, stenobathophobic, stenolithophilic.

• Communications of the Korean Mathematical Society
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• v.23 no.2
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• pp.153-159
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• 2008

For $\mathbb{F}[e^{{\pm}x}]_{\{{\partial}\}}$, all the derivations of the evaluation algebra $\mathbb{F}[e^{{\pm}x}]_{\{{\partial}\}}$ is found in the paper (see [16]). For $M=\{{\partial}_1,\;{\partial}_1^2\},\;Der_{non}(\mathbb{F}[e^{{\pm}x}]_M))$ of the evaluation algebra $\mathbb{F}[e^{{\pm}x},\;e^{{\pm}y}]_M$ is found in the paper (see [2]). For $M=({\partial}_1^2,\;{\partial}_2^2)$, we find $Der_{non}(\mathbb{F}[e^{{\pm}x},\;e^{{\pm}y}]_M))$ of the evaluation algebra $\mathbb{F}[e^{{\pm}x},\;e^{{\pm}y}]_M$ in this paper.

• Information Systems Review
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• v.3 no.2
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• pp.349-368
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• 2001

The purpose of this research is to investigate economic factors that determine characteristics of B2B e-Marketplaces. From a previous research work, we classify B2B e-Marketplaces into four forms: MRO Hubs, Catalogue Hubs, Yield Managers, and Exchanges. This classification is based upon "What businesses buy" and "How businesses buy." In an attempt to identify economic factors that determine e-Marketplace forms, we employ three economic factors: buyer/seller relationships, features of products traded, and characteristics of industries or markets. Through extensive literature reviews, we have selected six variables which can be used to explain reasons for different e-Marketplace forms: asset specificity and information asymmetry for the buyer/seller relationship, standardization and price variability for the product features, entry barrier and market volatility for the market characteristics. This research conducts six in-depth case studies to explain that "Why different forms of e-Marketplace emerge?" The research framework intends to provide link between e-Marketplace forms and six economic variables. Six case studies are based on interviews with CEO or team managers of e-Marketplace firms. This study has found six economic variables, explaining well reasons for different e-Marketplace forms. Research findings are summarized as propositions so that survey-type research can be conducted with a large number of samples in the future.

• Analytical Science and Technology
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• v.27 no.1
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• pp.60-65
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• 2014

The aim of this study was to establish an analytical method for the determination of E,E-farnesol and squalene in makgeolli, which is a traditional type of Korean fermented rice wine. E,E-farnesol and squalene in makgeolli were extracted using stir bar sorptive extraction (SBSE) coupled with gas chromatography-mass spectrometry. SBSE was found to be an effective method for analyzing the E,E-farnesol and squalene levels in makgeolli. The linear dynamic range of the SBSE method for detecting E,E-farnesol and squalene ranged from 0.5 to 200 ng/mL with $R^2=0.9974$ for E,E-farnesol and 100 to 50000 ng/mL with $R^2=0.9982$ for squalene. The limit of detection and the limit of quantification using the SBSE method were 0.1 and 0.5 ng/mL for E,E-farnesol and 15.0 and 40.0 ng/mL for squalene, respectively. The average recoveries obtained were, quantitatively, 101-107% for E,E-farnesol and 98-103% for squalene, respectively, supporting the accuracy of the SBSE-GCMS method.

• Journal of Sasang Constitutional Medicine
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• v.9 no.2
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• pp.245-261
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• 1997

The investigation were carried out the 37 patient with cerebrovascular accidents who had been treated in Oriental Medical Hospital in Kyung Hee University and in KangNam Uy Lim, and the 10 examinees who had been worked in Medical Hospital in Kyung Hee University. The consitution which had discriminated by survey, which had discriminated by study on the morphological diagrammings, which had discriminated by the result of the impatient of hospital on a dosage of constitutial prescription. The Prostaglandin E2 in blood for 47 persons (37 patients & 10 examinees) was measured. The following results were obtained. 1.In the constitution which had discriminated by survey, in the value of Prostaglandin E2 in bood of ammong four constitutiens didn,t showed significant differance. 2.In the constitution which had discriminated by study on the morphological diagrammings, in the value of Prostaglandin E2 in bood of ammong four constitutiens didn,t showed significant differance. 3.In the constitution which had discriminated by the result of patient of hospital on a dosage of constitutial prescription, the value of Prostaglandin E2 in blood of among four constitutions didn,nt showed signicant differance. 4.In the constitution which had discriminated by colligated three methods(survey, morphological diagrammings,the result of patient of hospital on a dosage of constitutial prescription), the value of Prostaglandin E2 in blood of ammong four constituion didn,t showed significant differnce. 5.In the constitution which had discriminated by survey, a test of significance between the value of Prostaglandin E2 in blood of each constitution and the value of Prostaglandin E2 in blood of the others was conducted. Only the value of Prostaglandin E2 in blood between in the TAE-EUM-IN(太陰人) and the others of female showed significant differance. 6.In the constitution which had discriminated by study on the morphological diagrammings,a test of significance between the value of Prostaglandin E2 in blood of each constitution and the value of Prostaglandin E2 in blood of the others was conducted. Only the value of Prostaglandin E2 in blood between in the SO-EUM-IN(少陰人) and the others of male showed significant differance. 7.In the constitution whichhad discriminated by the result of patient of hospital on a dosage of constitutial prescription,a test of significance between the value of Prostaglandin E2 in blood of each constitution and the value of Prostaglandin E2 in blood of the others was conducted. Only the value of Prostaglandin E2 in blood between in the TAE-EUM-IN(太陰人) and the others of male showed significant differance. 8.In the constitution which had discriminated was the colligated three methods(survey,morphological diagrammings,the result of patient of hospital on a dosage of constitutial prescription),a test of significance between the value of Prostaglandin E2 in blood of each constitution and the value of Prostaglandin E2 in blood of the others didn,t showed significant differnce. In this connected study is inadequete at present. But if the study is done persistently,the analysis of various ingredient in the body enables objectification in differentiation of four types of physical constitution as the supplemental method.