• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 2000.11a
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• pp.67-70
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• 2000

• Information and Communications Magazine
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• v.23 no.6
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• pp.53-62
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• 2006

• Journal of Service Research and Studies
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• v.5 no.1
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• pp.91-103
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• 2015

We examine the information transmission between the KT Spot and the KT Futures Index, the SK Telecom Spot and the SK Telecom Futures Index, based on the returns data offered by the Korea Exchange. The data includes daily return data from 1 January 2012 to 31 December 2014. Utilizing a dynamic analytical tool-the VAR model, Granger Causality test, Impulse Response Function and Variance Decomposition have been implemented. The results of the analysis are as follows. Firstly, results of Granger Causality test suggests the existence of mutual causality the KT Futures Index and the SK Telecom Futures Index precede and have explanatory power the KT Spot and the SK Telecom Spot However the results also identified a greater causality and explanatory power of the KT Spot and the SK Telecom Spot over the KT Futures Index and the SK Telecom Futures Index. Secondly, the results of impulse response function suggest that the KT Futures Index show immediate response to the KT Spot and are influenced by till time 4. From time 2, the impact gradually disappears. Also the SKT Futures Index show immediate response to the SKT Spot and are influenced by till time 4. From time 2, the impact gradually disappears. Lastly, the variance decomposition analysis shows that the changes of return of the KT Spot and SKT Spot are dependent on those of the KT Futures Index and the SK Telecom Futures Index. This implies that returns on the KT Spot and SKT Spot have a significant influence over returns on the KT Futures Index and the SK Telecom Futures Index. It contributes to the understanding of market price formation function through analysis of detached the KT Spot and the KT Futures Index, the SK Telecom Spot and the SK Telecom Futures Index.

• Journal of Sericultural and Entomological Science
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• v.35 no.1
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• pp.36-42
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• 1993

Expression of insecticidal protein by fusion product of truncated HD-1[CryIA(a)] N-terminal and HD-73[CryIA(c)] C-Terminal fragment of Bacillus thruingiensis subsp. kurstaki was investigate. Immunological analysis of transformants by using polyclonal antisera raised against the whole-crystal protein of HD-1 revealed that SK4 and SK5 were observed cross-reaction with polypeptides of 77-kDa and 105-kDa, respectively. Bioassay of the transformant pSK5 to Plutella maculipennis and Heliothis assulta were 96% and 97%, respectively.

• Proceedings of the Korea Information Processing Society Conference
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• 2012.04a
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• pp.518-521
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• 2012

N스크린 서비스는 하나의 디지털 컨텐츠를 TV, 스마트폰, 태블릿 PC나 노트북 등을 통해 일관성 있는 문맥으로 단절 없이 소비할 수 있는 환경을 마련해 준다. 현재 이 서비스는 TV와 모바일 기기의 스마트화, 클라우드 컴퓨팅의 확산, 홈 네트워킹의 발전, 모바일 웹을 위한 다양한 기술의 발전으로 그 발전 가능성이 매우 큰 서비스이다. 이런 N스크린 서비스는 단순한 연속적 상연 서비스를 넘어 다양한 기기를 동시에 사용하는 협업적 N스크린 서비스로도 진화할 것이다. 이런 환경에서 개발된 SK Planet hoppin 서비스는 TV, PC, 스마트폰, 태블릿 PC간의 연동을 통해, 기기 종류에 제약 없이 구매된 컨텐츠를 상영할 수 있는 통합 미디어를 구현하기 위해 개발되었다. 이를 위해 통신망으로 연결된 미디어 서버 및 hoppin 단말기를 위한 안드로이드 기반의 플랫폼을 개발하였으며, 크래들을 사용한 TV 연결을 통해 모바일 기기를 secondary 스크린으로도 사용될 수 있도록 했다. 이런 서비스는 현재 국내 유일의 형태이며 hoppin은 향후 협업적인 N스크린 서비스로 더욱 발전해 갈 수 있을 것이다.

• Microbiology and Biotechnology Letters
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• v.49 no.4
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• pp.594-602
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• 2021

The NLRP3 (nucleotide-binding domain, leucine-rich repeat family pyrin domain containing 3) inflammasome plays an important role in the initiation of inflammatory responses, through the recognition of pathogen-associated molecular patterns and tumor progression, including tumor growth and metastasis. In this study, we examined the effects of defective NLRP3 on the growth, migration, and invasiveness of hepatocellular carcinoma (HCC) SK-Hep1 cell. First, HCC SK-Hep1 cells were transfected with human NLRP3 targeting LentiCRISPRv2 vector using the CRISPR-Cas9 system, and NLRP3 deficiency was confirmed by RT-qPCR and western blotting. NLRP3 deficient SK-Hep1 cells showed delayed cell growth and decreased protein expression of PI3K, p-AKT, and pNF-κB when compared to NLRP3 complete SK-Hep1 cells. In addition, NLRP3 deficiency arrested the cell cycle at G1 phase through an increase in p21 and a reduction in CDK6. NLRP3 deficient SK-Hep1 cells also showed significantly delayed cell migration, invasion, and wound healing. The expression of epithelial-mesenchymal transition signaling molecules, such as N-cadherin and MMP-9, was found to be dramatically decreased in NLRP3 deficient SK-Hep1 cells compared to NLRP3 complete SK-Hep1 cells.

• Journal of Life Science
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• v.32 no.12
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• pp.971-978
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• 2022

Sulfur-oxidizing, ammonium-oxidizing, and nitrogen-oxidizing media were used to isolate bacteria to degrade malodor gas effectively in piggery manure or soil. Twelve different strains were isolated: Paenibacillus amylolyticus, Rhodococcus jostii, Rhodococcus qingshengii, Rhodococcus opacus, Alcaligenes faecalis, Alcaligenes faecalis, Kastia adipate, Kastia adipata, Microbacterium oxydans, Halomonas campisalis, Acinetobacter oleivorans, and Micrococcus luteus. By inoculating each strain in the piggery liquid manure by 1%, the pH in most strain treatments was maintained at 8.0. Total bacterial counts were maintained at 7.3~7.9 log CFU/ml until 15 days, and then they dropped dramatically down to 5.1~5.5 log CFU/ml. On the 30th day, the treatment group inoculated with Rhodococcus opacus SK2659 showed a relatively high level of ammonium nitrogen removal, which was 39% of that of the control group. When Rhodococcus opacus SK2659 was inoculated, H2S concentration after 100 days was 3.23% compared with the control (no inoculation), suggesting that Rhodococcus opacus SK2659 is an excellent strain for removing malodor gas. The gas production of the treatments was lower than that of the control. The total accumulated amount of gas production in most strain treatments was a quarter of the gas production compared to the control throughout the experimental periods. Acinetobacter oleivorans SK2675 showed the lowest level at 12.39% compared to the control in gas production. In conclusion, the use of mixture strains, such as Rhodococcus opacus SK2659 and Acinetobacter oleivorans SK2675 isolated in this study could increase the efficacy of malodor gas reduction in the biological treatment of piggery manure.

• Speech Sciences
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• v.13 no.1
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• pp.55-66
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• 2006

A purpose of this study is to investigate the acoustic characteristics of English stress produced by the two groups of South Kyungsang (henceforth, SK) Korean speakers: high-proficiency and low-proficiency with reference to English native speakers. Another purpose is to compare results from the high- and low-proficiency SK Korean subjects with those of the native speakers, and to provide an analytical account of how approximate the high-proficiency SK Korean subjects' production is to the native speakers' and how different the low-proficiency SK Korean subjects' is from the native speakers'. Results indicated that the native speakers' main strategy used in producing stressed syllables was duration while the high-proficiency SK Korean subjects' was predominantly pitch-oriented. The low-proficiency SK Korean subjects' pitch patterns showed regularity, emphasizing the penultimate syllable with pitch. In comparing duration among the three groups, both groups of the SK Korean subjects became more even in their duration values for each syllable as the structure of the word or the sentence became more complex.

• The Korean Journal of Pharmacology
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• v.27 no.1
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• pp.21-31
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• 1991

When administered intracerebroventricularly (icv), cholinergic nicotinic agents, nicotine and DMPP, as well as cholinergic muscarinic agents, muscarine and bethanechol, produced pressor responses in urethane-anesthetized vagotomized rabbits. The response patterns to nicotine and to DMPP were similar, while the bethanechol response resembled the muscarine pattern. The pressor response to nicotine and DMPP was markedly inhibited by icv mecamylamine but not by icv pirenzepine, whereas the response to muscarine and bethanechol was inhibited by icv pirenzepine but not by icv mecamylamine, suggesting that both nicotinic and muscarinic receptors in the brain are involved in the action. Intravenous pretreatments of animals with regitine, reserpine, enalapril, saralasin, both regitine and enalapril, both regitine and saralasin, SK&F-100273 did not prevent the pressor response to nicotine and muscarine. Iv pretreatments with both regitine and SK&F-100273 inhibited the nicotine response without affecting the muscarine response, whereas pretreatments with three agents, regitine, enalapril and SK&F-100273, inhibited the muscarine response. The nicotine-induced elevated blood pressure as well as the muscarine-induced were lowered by regitine but not by enalapril or by SK&F-100273. Enalapril was without effect on the nicotine hypertension in rabbits treated with regitine or both regitine and SK&F-100273, whereas SK&F-100273 lowered the nicotine hypertension in regitine-treated animals. Enalapril did not enhance the lowering effect of SK&F-100273 in regitine-treated ones, nor did it cause a fall of the muscarine hypertension induced in regitine-treated rabbits, but it did lower the blood pressure in animals treated with both regitine and SK&F-100273. Likewise, SK&F-100273 did not cause a fall of the muscarine hypertension induced in regitine-treated rabbits, but it did lower the blood pressure in animals treated with both regitine and enalapril. These data suggest that the nicotine-induced hypertensive state is related to at least two systems in the periphery-sympathetic and vasopressin, whereas in the muscarine-induced hypertensive state three systems in the periphery are involved, i.e., the sympathetic, vasopressin and angiotensin system. The hypotensive effect of regitine on basal arterial blood pressure levels of rabbits was not influenced by pretreatment with either of enalapril or SK&F-100273, but significantly potentiated by treating with both enalapril and SK&F-100273, suggesting participation of the sympathetic and the renin-angiotensin system as well as the vasopressin system in maintenance of arterial blood pressure.

• The Korean Journal of Food And Nutrition
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• v.17 no.1
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• pp.25-31
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• 2004

The quality and sensory characteristics of kimchi during fermentation at 15 $^{\circ}C$ were evaluated. Kimchi was prepared with Chineses cabbage which was brined in 10% salt water added dill hot-water extracts(DK) and stevia hot-water extracts(SK) respectively. The pHs and reducing sugar contents of kimchi were decreased with increasing the fermentation time whereas lactic acid(%) was increased. The pH of DK was lower than control, and the lactic acid(%) contents of DK, SK were equal or higher than control in the first stage of fermentation. Also, the reducing sugar contents of DK, SK were lower than control. These results showed that the fermentation of DK and SK were faster than that of control in the first stage of fermentation. But the lactic acid(%) contents of DK, SK were higher than control after the 12th day of fermentation. It showed that it is possible to extend the preservation of kimchi. With increasing fermentation time, the L value of kimchi juice was increased, and the a value was decreased, and the b value was constant. Especially, the a value of DK, SK was higher than control. It meant that DK, SK kept more carotenoids in kimchi than control. On the 6th day of fermentation, the sensory evaluation analyzed by ANOVA followed Duncan's multiple range test showed that the levels of the green smell and the moldy flavor of DK were significantly lower than control(p<0.05) and the levels of the green smell, the green flavor and the moldy smell of SK were significantly lower than control(p<0.05), too. And the level of overall flavor of DK, SK was higher than control. The most preference among experimental groups was SK and then control, DK. The levels of TBARS of DK, SK were generally lower than control, and the level of TBARS of DK was lower than SK.