대학생의 수면, 회복성과 대인관계 간의 관계

강민경,김소정,김유미,박수민,변고영,송은혜,신지혜,이은별,이은서,정진선,김건희,이수연 이화여자대학교 간호과학대학 2019 이화간호학회지 Vol.- No.53

Purpose: This study aimed to identify the relationship among sleep, resilience, and interpersonal relations of college students. Methods: Data were collected by using a structured questionnaire consisting of Korean Sleep Scale, Connor-Davidson Resilience Scale-10, and Relationship Change Scale between September 21st, 2018 to September 30th, 2018. Subjects were 185 college students who currently attend universities in a city. Collected data were analyzed using descriptive statistics, t-test, one-way ANOVA, Tukey’s test and Pearson’s correlation coefficient using the SPSS 25.0 program. Results: The mean score of sleep was 34.93±6.35, the mean score of resilience was 23.17±6.95, and the mean score of interpersonal relations were 3.65±0.38. In sleep, there were significant differences according to grade and major. In resilience, there were significant differences according to gender and grade. Sleep was negatively related to resilience (r=-.319, p<.001) and interpersonal relations (r=-.226, p=.002). Interpersonal relations were positively correlated to resilience (r=.348, p<.001). Conclusion: The results suggest that concrete measures to promote interpersonal relations need to be sought in consideration of the relations among college students' sleep, resilience, and interpersonal relations. Also, it is expected that the study will be used as basic data to improve the interpersonal relations of college students in the desirable direction by improving the sleep and resilience of college students.

Cryomilling effect on the mechanical alloying behaviour of ferritic oxide dispersion strengthened powder with Y₂O₃

Kim, J.H.,Lee, J.H.,Min, J.Y.,Kim, S.W.,Park, C.H.,Yeom, J.T.,Byun, T.S. Elsevier Sequoia 2013 JOURNAL OF ALLOYS AND COMPOUNDS Vol.580 No.-

Cryogenic cooling effect on mechanical alloying of the mixture of Fe-14Cr-3W-0.1Ti and Y<SUB>2</SUB>O<SUB>3</SUB> powders was investigated. The powder mixtures were ball milled for 40h at room-temperature and -150<SUP>o</SUP>C. Cryomilling produced much finer particle/grain size than conventional room-temperature milling. XRD diffraction peak intensity was much lower under cryomilling conditions due to formation of nano-size grains and increased residual microstrain. Absorption amounts of interstitial elements were considerably higher under cryomilling conditions.

Synthesis of 14-π nickel(Ⅱ) complexes with disubstituted benzoN₄macrocycles and electrochemical studies of 14-π nickel(Ⅱ) complexes with monosubstituted benzoN₄ macrocycles

Na, H.G.,Lee, D.C.,Lim, J.W.,Choi, J.H.,Byun, J.C.,Park, Y.C. 濟州大學校 基礎科學硏究所 2002 基礎科學硏究 Vol.15 No.2

The template reaction of a 1: 1 mixture of 4,5-disubstituted(2CH_(3) or 2C1)-1,2-phenylenediamine and alkylenediamine [NH_(2)- (CH_(2))_(n)-NH_(2); n = 2 or 3] with 2,4-pentanedione in the presence of a nickel(Ⅱ) salt gave a series of asymmetric 14-11 nickel(Ⅱ) complexes with disubstituted tetraazaannulene, [Ni(Me_(4)-X_(2)bzotetraaza[Y]ene] (X =CH_(3) and Cl, Y= 14 and 15), which were characterized by mass, infrared, ^(1)H and ^(13)C NMR spectra. The electronic effects of the disubstituent groups on the phenyl ring significantly affected the spectral properties of the complexes. The electrochemical behaviors of the nickel(Ⅱ) complexes with monosubstituted benzoN_(4) macrocycles, [Ni(Me_(4)-Xbzotetraaza[Ylene)] (X = H, NO_(3), CH3 and Cl, Y = 14 and 15) exhibited cyclic voltammograms characterized by, two irreversible, one electron, waves due to oxidation of the macrocycle (Mc); Mc^(+) → Mc^(2+) in the ranges of +0.06-+0.28 V for 14-X and t-0.01-+0.29 V for 15-X, and Mc^(+) → Mc^(2+) in the ranges of +0.58 to + 0.81V for 14-X and +0.36 to +0.79 V for 15-X versus Ag/Ag^(+) (0.01 M AgNO_(3) in 0.1 M tetraethylammonium perchlorate (TEAP) acetonitrile solution). In the reduction area only one reversible wave Ni^(2+)/Ni^(+) was detected at E_(1/2)= -1.65 to -2.65 V in DMSO. The relationships between the oxidation potentials (E_(ap) and σ_(p) were linear with a slopes of 0.23 V for 14-X and 0.18 or 0.23 V for 15-X (correlation coefficients of 0.99). The catalytic reduction of dioxygen by the electropolyrnerized glassy carhon electrodes (GCE) occurred at about 400 mV more positive than by the bared one. The catalytic reduction using 14-X occurred at potentials somewhat more positive than using 15-X.

원발성 간암에서 PIVKA-II 및 Lens Culinaris Agglutinin-A 반응성 Alpha-fetoprotein(AFP-L3)의 임상적 유용성

배시현,박두호,양진모,박영민,차상복,최종영,성광용,조세현,정규원,선희식,김부성,최상욱,변병훈,한남익 대한간학회 2000 Clinical and Molecular Hepatology(대한간학회지) Vol.6 No.2

Background/Aims: Des-γ-carboxy prothrombin(DCP), a protein induced by vitamin K absence or antagonist-II(PIVKA-II), and Lens culinaris agglutinin-A reactive AFP-L3 have been reported to be useful markers for the diagnosis of hepatocellular carcinoma (HCC). In the present study, both the PIVKA-II and AFP-L3 were analyzed and compared with a conventional AFP to determine its usefulness, specificity and sensitivity in the diagnosis of HCC. Methods: Sera were collected from 108 patients consisting of 17 patients with chronic hepatitis, 22 patients with liver cirrhosis and 69 patients with HCC. The AFP-L3 was determined by an lectin affinity electrophoresis coupled with an antibody-affinity blotting. Level of DCP was measured by an enzyme immunoassay with an anti-DCP monoclonal antibody. Results: The sensitivity and specificity of PIVKA-II and AFP L3 were 49.3% and 89.5%, and 32.5% and 85.7%, respectively. No significant correlation was found between the PIVKA-II or AFP L3 and serum AFP. No correlation was found etween the PIVKA-II or AFP L3 and the characteristics of HCC. Conclusion: The determination of plasma DCP and AFP L3 levels combined with AFP levels may be useful especially for the differential diagnosis between HCC and chronic liver diseases without HCC.(Korean J HepatoBackground/Aims: Des-γ-carboxy prothrombin(DCP), a protein induced by vitamin K absence or antagonist-II(PIVKA-II), and Lens culinaris agglutinin-A reactive AFP-L3 have been reported to be useful markers for the diagnosis of hepatocellular carcinoma (HCC). In the present study, both the PIVKA-II and AFP-L3 were analyzed and compared with a conventional AFP to determine its usefulness, specificity and sensitivity in the diagnosis of HCC. Methods: Sera were collected from 108 patients consisting of 17 patients with chronic hepatitis, 22 patients with liver cirrhosis and 69 patients with HCC. The AFP-L3 was determined by an lectin affinity electrophoresis coupled with an antibody-affinity blotting. Level of DCP was measured by an enzyme immunoassay with an anti-DCP monoclonal antibody. Results: The sensitivity and specificity of PIVKA-II and AFP-L3 were 49.3% and 89.5%, and 32.5% and 85.7%, respectively. No significant correlation was found between the PIVKA-II or AFP-L3 and serum AFP. No correlation was found etween the PIVKA-II or AFP L3 and the characteristics of HCC. Conclusion: The determination of plasma DCP and AFP-L3 levels combined with AFP levels may be useful especially for the differential diagnosis between HCC and chronic liver diseases without HCC.(Korean J Hepatol 2000;6:205-214)l 2000;6:205-214)

Lactobacillus spp.와 Bacillus coagulans의 glutathione sulphydryl 함유율과 항산화 활성

변정열,윤영호 중앙대학교 유전공학연구소 2003 遺傳工學硏究論集 Vol.16 No.1

활성산소의 세포막 파괴효과로부터 보호작용과 항산화 활성이 강한 균주를 선별하기위하여 33균주에 대한 세포내 glutathione 함유율과 linolcic acid 산화억제활성을 측정하였다. Lactobacillus casei HY2782 25.15 u㏖/g으로 가장 높은 함유율을 보이고 있으며 Lactobacillus rhamnosus CU01, Lactobacillus plantarum CU03 이 14.0u㏖/g 으로 통계적인 유의성을 나타내는 수준으로 높은 함유율을 나타내었다. 포자형성균주중의 glutathione 함유율측정결과 Lactobacillus sporogenes CU815, sporolactobacillus inulinus ATCC13538 은 Bacillus coagulans 균주의 GSH 함유율 보다 유의성이 인정되는 높은 함유율을 나타내었다. L. acidophilus ATCC4356, L. casei HY2782, L. brevis CU06 L. helveticus CU631은 Lactobacillus spp 중 높은 항산화 활성을 나타내었고 Bacillus coagulans의 항산화 활성범위는 6.02~51.72%로 나타났으며 Bacillus coagulans균주의 항산화 활성이 Lactobacillus spp.의 산화억제활성보다 높은 성향을 나타내었다. The antioxidative ability on the basis of reduced glutathione sulphydryl level, the inhibition activities of linoleic acid peroxidation of cell free extract of Lactobacillus spp and Bacillus spp. have been determined; Lactobacillus casei HY 2782 contained the highest level of GSH among the probiotic strains with 25.1μmole/g. Significanly high level of GSH occured in the intracellular cell free extract of Lactobacillus rhamnosus CU01, Lactobacillus plantarum CU03 The antioxidant activity and inhibition of linoleic acid peroxidation of cell free extract of Lactobacillus spp and Bacillus spp by thiobarbituric acid(TBA) assay have been shown to be significantly differed depending on the strains(P>0.01). Intracellular cell free extracts of L. acidophilus ATCC4356, L. casei HY2782, and strains of Bacillus coacillus revealed a significantly intensive inhibitory activity in the linoleic acid peroxidation reactions. Spearmans' rand correlation between inhibitory activity on linoleic acid peroxidation and cellular GSH levels of Lactobacillus spp was analysed and the correlation quotient was 0.65 which means a significant positive correlation.

松果腺部의 胎生癌 : A Case of Report

변영우,임만빈,정혁인,김인홍,장은숙,정재홍 대한신경외과학회 1980 Journal of Korean neurosurgical society Vol.9 No.2

The authors are reporting a extremely rare case of an embryonal carcinoma which arose in the pineal region of an eleven-year old boy. Surgical biopsy and autopsy performed arid be died about 4 month after the onset of the symptom. His clinical and autopsy findings are described.

Rh항원에 감작된 妊婦의 산전 혈장교환 治驗 1예

김현옥,권오헌,이삼열,김세광,남궁란,김길영 大韓血液學會 1985 大韓血液學會誌 Vol.20 No.2

뇌경막외강에 발생한 거대한 Granular Cell Myoblastoma의 외과적 치험 : 1례보고 A Case Report

변승열,송풍호,김승래 慶北大學校 醫科大學 1975 慶北醫大雜誌 Vol.16 No.2

Sn-Zn 도금용 합금의 열처리 및 첨가원소에 따른 구조변화에 관한 연구

변응선,정철,송요승,노병호 한국 항공대학교 항공산업기술연구소 1997 航空宇宙産業技術硏究所 硏究誌 Vol.7 No.-

이 연구의 목적은 내식성 도금재료의 개발이다. Sn-Zn을 기본합금으로하여 미량원소를 첨가한 후 용융시켰다. Quenching, tempering, annealing과 같은 열처리에 의해 미세구조와 특성들이 변화하였다. 열처리와 첨가원소의 결과로써 acicula dendrite들이 분산되었다. 경도 시험의 결과는 quenching과 tempering에 의해 감소되었다. Quenching과정이 acicula dendrit를 분산시키는데 가장 중요한 열처리이다. 또한 첨가원소에 의한 경도값은 연화되었다. The purpose of this study is the development of the noncorrosive plating materials. The micro adding elements were mixed with the basic alloy of Sn-Zn and were melted. The post heat treatments like as quenching, tempering and annealing were carried out to change the microstructure and the properties. As the results of the heat treatment and the adding element, the acicular dendrites were dispersed. The hardness number was decreased according the quenching and tempering. The quenching process was the main heat treatment to disperse the acicular dendrites. The hardness number according to the alloy element was decreased.

계면활성제의 농도를 고려한 1차원 자유표면유동

변민수,서용권 동아대학교 생산기술연구소 2001 生産技術硏究所硏究論文集 Vol.6 No.2

In this study, we analysed free surface flow by using the experimental and numerical method with a different surfactant concentration. We compared numerical solution with experimental results for one-dimensional model. The result shows that in general the free surface velocity can well be reproduced by the one-dimensional model for various surfactant conc entration.