"덕은 가르쳐질 수 있는가?"라는 물음의 도덕교육적 함의

김상돈 ( Sang Don Kim ) 한국윤리교육학회 2009 윤리교육연구 Vol.0 No.20

소크라테스는 『프로타고라스』와 『메논』에서 "덕은 가르쳐질 수 있는가?"라는 물음을 제시한다. 프로타고라스와 메논은 미묘한 차이가 있기는 하지만 모두 덕은 가르쳐질 수 있다고 주장한다. 하지만 소크라테스는 덕의 교육가능성과 덕의 지식가능성을 논리적으로 연결시키면서 만약 프로타고라스와 메논이 덕의 지식가능성을 입증하지 못한다면 그들은 부당 전제의 오류를 범하게 되는 것임을 주장한다. 왜냐하면 덕의 교육가능성은 덕의 지식가능성에 의존하기 때문이다. 덕의 지식가능성에 대한 논의는 "덕이란 무엇인가?"라는 물음에 관한 논쟁으로 이어진다. 그러나 두 대화편 모두에서 덕의 본질에 대한 최종적인 결론은 발견되지 않는다. 따라서 덕의 교육가능성 역시 미해결의 과제로 남게 된다. 소피스트의 상대주의적 관점을 비판하고 이성에 근거한 객관적인 지식을 추구한 것으로 알려진 소크라테스가 덕의 지식가능성과 교육가능성에 대해 확신하지 않았다는 점은 다소 의아한 것이다. 그렇다면 프로타고라스, 메논과의 논쟁에서 보여준 소크라테스의 의구심은 어떤 의미로 해석될 수 있는가? 본 논문은 덕의 교육가능성에 대한 물음과 논쟁을 분석하여 그것에 담긴 도덕교육적 함의를 탐색한다. This study is focused on Socratic question, "Can be virtue teachable", in Protagoras and Meno. In Protagoras, Protagoras insists that he can teach virtue, in particular, civic virtue, and he know what it is. But Socrates presents some questions to him. According to Socrates, we cannot have a conviction about the possibility, if we don`t have the knowledge about what virtue is. Similarly in Meno, Meno also ask a question to Socrates. The teachability of virtue and the possibility as knowledge of virtue are correlated. Socrates examines two theses. But the conclusion is disappointed. Socrates still open the question those two possibilities. This means that he, too, has not a cogent argument on what virtue is. Socrates`s hesitation shows a lot of implications about moral education. Can we teach morals? What is the moral that we intend to teach. Is it the same as Socratic virtue? Or, Is it different with ancient Greek virtue. Greek, arete, can it be interpreted as virtue, modern language? We can find the answer about these questions, by distinguishing and moral. Virtue can be totally reduced into moral. It has some different logical structure. Here, we can find the true meaning of virtue ethics. In moral education, moral virtue and moral principle or moral rule have competed each other. Nevertheless, without principle, virtue cannot be justified as contents of moral education, because teaching is possible by principle. Moral principle, moral rule, and moral knowledge cannot be separated in concept. Contrarily, moral knowledge with virtue is ineffective in moral education.

Protective Effects of N-acetylcystenine and Selenium against Doxorubicin Toxicity in Rats

Yeo-sung Yoon,Sun-don Kim,Min-hye Lee,Heung-shik S.Lee,In-se Lee,Je-kyung Sung,Eun-sung Park 대한수의학회 2003 Journal of Veterinary Science Vol.4 No.2

Effects of N-acetylcysteine and Selenium against Doxorubicin Toxicity in RatsEun-sung Park, Sun-don Kim1, Min-hye Lee, Heung-shik S. Lee, In-se Lee, Je-kyung Sung and Yeo-sung Yoon*

장이간 이뇨제 남용중인 특발성 또는 자가획득 부종간의 병태생리의 차이

민경환(Kyung Hwan Min),김호중(Ho Jung Kim),유준호(Jun Ho Ryu),한상웅(Sang Woong Han),강석우(Seok Woo Kang),문중돈(Jung Don Mun) 대한신장학회 2000 Kidney Research and Clinical Practice Vol.19 No.1

N/A Patients suffering from idiopathic or self-induced edema are uniformly characterized by chronic use of furosemide, which leads to vicious cycle of edema. Among chronic furosemide users who don't have any other specific edema forming diseases, 9 patients from the outpatient clinic(OC) and 6 patients examined at the emergency room(ER) used it mainly for weight reduction and for cyclical edema, respectively. All of the ER group patients were presented with severe hypokalemia(2.04±0.2mEq/L; range 1.3 to 2.7 mEq/L) and alkalosis(748±0.01; range 7.44 to 7.51) but none from the OC group showed such results. Other baseline parameters including Plasma renin activity(PRA) and aldosterone level on recumbency, and FEn₂were similar in both groups. In contrast, daily working hours(6.1±0.5 vs 10±0.6hr, p<0.01), average body weight gain between AM and PM(0.4±0.1 vs 0.9±0.lkg, p<0.01), peak weight gain interval(9±0.8 vs 5±0.1day, p<0.05), PRA(7.6±1.5 vs 23.5±7.2ng/ml/h, p<0.05) and aldosterone level(22.1±4.2 vs 64.8±10.4 ng/dl, p<0.01) on ambulation, and FEk. on normokalemia(ll±2A vs 36±7.7%, p<0.01) were statistically different between the two groups. In comparison to the OC group, both the amout of urine(617±39 vs 358±26ml, p<0.01) and the percent change of PRA(-14±4 vs -3±2%, p<0.05) and al-dosterone level(-17±5 vs -4±3%, p<0.05) after saline loading(lL over 1hr, IV) following ambulation were smaller in the Elt group. Moat of the ER group patients(5/6) required aldosterone antagonist (spironolactone) added to K(+) supplement, but all of the OC group patients were managed to maintain an edema-free status with conservative treatment. In conclusion, patients with idiopathic edema seem to have more fluid transudation out of intravascular space during orthostasis with a prominent degree of deranged renin-aldosterone axis and K(+) metabolism than those with self-induced edema.

Mitochondrial DNA polymorphisms of the red-spotted grouper : Information for molecular phylogeny and breeding

Sang-Hyun Han,Yoo-Kyung Kim,Chi-Hoon Lee,Yong-Don Lee 한국발생생물학회 2017 한국발생생물학회 학술발표대회 Vol.2017 No.8

This study analyzed the mitochondrial DNA (mtDNA) sequences of the Red-spotted grouper, Epinephelus akaara (Perciformes, Serranidae), and used for construction of molecular phylogeny and for association between maternal haplotypes and phenotypic differences of F1 progeny. This study revealed phylogenetic position of the endangered red-spotted grouper, Epinephelus akaara (Perciformes, Serranidae) based on the nucleotide sequences of complete mt genome. Complete nucleotide sequences were determined from the mt genomes of two individuals of the red-spotted grouper caught in South Korea. The mitochondrial genome had 16,795 base pairs (bp) and 13 protein-coding genes, 2 ribosomal RNAs, 22 transfer RNAs, and a noncoding control region. The two mt genomes were highly homologous (99.71% similarity). The two mt genomes of E. akaara determined in this study were found in Clade I in the phylogenetic tree with those of E. awoara, E. fasciatomaculosus, E. sexfasciatus, E. diacanthus, E. sticus, and E. morio, suggesting that this may be helpful to understand phylogenetic position of Epinephelus species including red-spotted grouper. The genetic structure and phylogenetic relationship were investigated in the red-spotted grouper populations using the sequence polymorphisms of the cytochrome c oxidase subunit I(COI) gene and variable number of tandem repeats (VNTRs) of the control region (CR). A total of forty-one COIhaplotypes were found from 174 COIsequences from East Asia. The Jeju Island population (n=5) had four haplotypes, and the South Sea population (n=105) had twenty-five haplotypes. The Hong Kong population had nineteen haplotypes from fifty-nine COIsequences determined in this study. Among the COIhaplotypes, EAC_03 is commonly found in all populations (Jeju Island and South Sea of Korea, China, Hong Kong and Taiwan). In addition, there were four haplotypes (EAC_12, EAC_14, EAC_28 and EAC_35) also common among the populations tested in this study and collected from NCBI database. However, twenty haplotypes were specific in the Korean populations, and fifteen haplotypes were specific in the China and Hong Kong populations. The neighbor-joining (NJ) trees constructed from the phylogenetic analyses based on the polymorphisms of the COIhaplotypes showed the monophyletic branching pattern within the genus Epinephelus, indicating that the red spotted grouper populations had evolved from common maternal ancestors. Consequently, East Asian red-spotted grouper populations are maternally related at least in part, as well as sharing the same evolutionary history, and still affected by the East Asian ocean current (Kuroshio). From the haplotype analysis for mtDNA CR, we obtained VNTR polymor-phisms in all populations tested. We found five haplotypes for the CR VNTR patterns. The 133-bp repeat units were counted two to five. Using CR VNTR haplotypes, the statistical association was examined between mtDNA haplotypes and growth traits of aquafarming young fishes of the red-spotted grouper. A total of 386 F1 progeny, which were randomly selected from a progeny population produced by artificial insemination in the farm, were genotyped and statistically compared their body length (BL), body weights (BW) and length-weight indexes (LWI) at 11-months after hatching. There haplotypes H03, H04 and H05 were detected for CR in the parents and progeny populations. The significant difference was found in the BL values among three haplotypes (p<0.05). The F1 animals with haplotype H03 had freater level of BL (19.22±2.000 cm) than those of H04 (18.64±1.964 cm) and H05 (18.86±1.512 cm). There were no significant differences in BW and LWI among haplotypes (p<0.05). These results concluded that the maternal lineages affected the growth rates during early developmental stage in the red-spotted grouper. These findings suggested that the mitochondrial background of the fertilized eggs may play an important role in the early development, and the markerassisted selection system for broodstork animals may be helpful in improving performance traits for aquaculture industry as well as for conservation biology of the endangered red-spotted grouper. However, the results from the association analysis between haplotypes and phenotypes of F1 progeny (n=1,093) at 60-days after hatching showed that there were no significant difference (p>0.05). Consequently, the results of this study may be useful information for understanding the evolutionary relation with other species and may be good genetic markers for breeding management in the red-spotted grouper aquaculture system.

Digestive Physiological Characteristics of the Gobiidae

Sang-Woo Hur,Shin-Kwon Kim,Dae-Jung Kim,Bae-Ik Lee,Su-Jin Park,Hyung-Gyu Hwang,Je-Cheon Jun,Jeong-In Myeong,Chi-Hoon Lee,Young-Don Lee 한국발생생물학회 2016 발생과 생식 Vol.20 No.3

In this study, we investigated the characteristics of CCK-producing cells and mucus-secreting goblet cells with respect to stomach fish and stomachless fish of the Gobiidae in order to provide a basis for understanding the digestive physiology. Hairychin goby (Sagamia geneionema), which is stomachless fish, the numbers of mucus-secreting goblet cells is highest in the posterior intestine portion (P<0.05), while CCK-producing cells are scattered throughout the intestine. Gluttonous goby (Chasmichthys gulosus), which is stomach fish, mucus-secreting goblet cells are most abundant in the mid intestine portion (P<0.05), whereas CCK-producing cells are observed only in the anterior and mid intestine portion. Trident goby (Tridentiger obscurus) which is stomach fish, mucus-secreting goblet cells were most abundant in the mid intestine portion (P<0.05). CCK-producing cells are found in the anterior and mid intestine portion. Giurine goby, Rhinogobius giurinus which is also stomach fish, the largest number of mucus-secreting goblet cells showed in anterior intestine portion except for esophagus (P<0.05). CCK-producing cells are present only in the anterior and mid intestine portion. In S. geneionema, digestive action occurs in the posterior intestine portion to protect and functions to activate digestion. In contrast, in C. gulosus, T. obscurus and R. giurinus, their digestive action occurs in the anterior and mid intestine portion to protect and functions to activate digestion. Further studies of the modes of food ingestion by these fish, the contents of their digestive tracts, and the staining characteristics of the goblet cells need to be carried out.

[PD-0036] CAM Biodesign: Engineering Crassulacean Acid Metabolism (CAM) Photosynthesis into C₃ plants for Improving Water-use Efficiency

Sung Don Lim(Sung Don Lim),Hong-Ju Lee(Hong-Ju Lee),Yu Kyong Hu(Yu Kyong Hu),Jeong Ho Shin(Jeong Ho Shin),Sang Hun Kim(Sang Hun Kim),John C. Cushman(John C. Cushman ) 한국육종학회 2022 한국육종학회 공동학술발표집 Vol.2022 No.-

Area-Dependent Breakdown Characteristics of N₂O Oxides Grown in a Conventional Furnace

Kim,Bong Ryul,Lee,Sang-Don THE RESEARCH INSTITUTE OF ASIC DESIGN YONSEI UNIVE 1995 Journal of the Research Institute of ASIC Design Vol.2 No.1

In this paper, TDDB properties of N₂O oxides, grown at 950 and 1000℃ in a conventional furnace, have been compared with those of pure oxide grown at 850℃. Time-zero breakdown tests reveal the highest breakdown field for pure oxide, the lowest breakdown field for 1000℃ N₂O oxide. Compared with pure oxides, N₂O oxides with small area (=25-㎛²) grown at 950℃ show improved ?? under substrate injection and slightly degraded ?? under gate injection. However, N₂O oxides grown at 1000℃ show degraded ??, irrespective of the injection polarity. Also, ?? of N₂O oxides are more severely degraded with increasing the capacitor area, thus more degraded for large area (≥10000-㎛²) capacitors under both substrate and gate injection. These TDDB properties of N₂O oxides, dependent on the injection polarity, the growth temperature and the capacitor area, are suggested to be attributed to two factors, that is, oxide qualities improved by nitrogen pile-up at the substrate/oxide interface and large undulations caused by locally retarded oxide growth due to the same interfacial nitrogen.

Original Article : Performance evaluation of the HepB Typer-Entecavir kit for detection of entecavir resistance mutations in chronic hepatitis B

( Sang Hoon Ahn ),( Ji Yong Chun ),( Soo Kyung Shin ),( Jun Yong Park ),( Wang Don Yoo ),( Sun Pyo Hong ),( Soo Ok Kim ),( Kwang Hyub Han ) 대한간학회 2013 Clinical and Molecular Hepatology(대한간학회지) Vol.19 No.4

Background/Aims: Molecular diagnostic methods have enabled the rapid diagnosis of drug-resistant mutations in hepatitis B virus (HBV) and have reduced both unnecessary therapeutic interventions and medical costs. In this study we evaluated the analytical and clinical performances of the HepB Typer-Entecavir kit (GeneMatrix, Korea) in detecting entecavir-resistance-associated mutations. Methods: The HepB Typer-Entecavir kit was evaluated for its limit of detection, interference, cross-reactivity, and precision using HBV reference standards made by diluting high-titer viral stocks in HBV-negative human serum. The performance of the HepB Typer-Entecavir kit for detecting mutations related to entecavir resistance was compared with direct sequencing for 396 clinical samples from 108 patients. Results: Using the reference standards, the detection limit of the HepB Typer-Entecavir kit was found to be as low as 500 copies/mL. No cross-reactivity was observed, and elevated levels of various interfering substances did not adversely affect its analytical performance. The precision test conducted by repetitive analysis of 2,400 replicates with reference standards at various concentrations showed 99.9% agreement (2398/2400). The overall concordance rate between the HepB Typer-Entecavir kit and direct sequencing assays in 396 clinical samples was 99.5%. Conclusions: The HepB Typer-Entecavir kit showed high reliability and precision, and comparable sensitivity and specificity for detecting mutant virus populations in reference and clinical samples in comparison with direct sequencing. Therefore, this assay would be clinically useful in the diagnosis of entecavir-resistance-associated mutations in chronic hepatitis B.

Poster Session 2 : Protein Structure and Function Signal Transduction ; Functional Importance of the Amino Terminus of Striated α-Tropomyosin

( Sang Min Seo ),( Don Kyu Kim ),( Young Joon Cho ) 한국생화학분자생물학회 (구 한국생화학회) 2002 추계학술대회집 Vol.2002 No.-

Poster Session 3 : Apoptosis and Cell Cycle Oncogenes and Tumor Suppressor Genes Virology Immunology ; Development of cDNA Microarray with Apoptosis Related Genes

( Sung Min Chun ),( Hee Jin Kim ),( Byoung Don Han ) 한국생화학분자생물학회 (구 한국생화학회) 2002 생화학분자생물학회 춘계학술발표논문집 Vol.2002 No.-