우리나라 재배지역별 야콘 생산성 및 기능성 프락토올리고당 평가

김수정,손황배,홍수영,남정환,장동칠,김기덕,서종택,구본철,김율호,Kim, Su Jeong,Sohn, Hwang Bae,Hong, Su Young,Nam, Jung Hwan,Chang, Dong Chil,Kim, Ki Deog,Suh, Jong Taek,Koo, Bon Cheol,Kim, Yul Ho 한국작물학회 2017 한국작물학회지 Vol.62 No.3

The purpose of this study was to investigate the effects of envrionmental factors on the ecological responses, yield, and quality properties and physicochemical characteristics of yacon cultivated in various regions of Korea. Experiments were carried out in eight regions from 2010 to 2013. The temperature range in Jinbu, Bonghwa, Cheolwon, and Gangneung during the growth period of yacon cultivation was $17.5-24.6^{\circ}C$. The total yield and marketable yield of tuberous root in Jinbu were 4,065 and 3,196 kg/10a, respectively. The sugar content of yacon tuberous roots comprised 0.11-0.20% fructose, 0.11-0.37% glucose, 0.39-0.68% sucrose, 0.07-0.37% reducing sugar, and 7.03-9.62% fructo-oligosaccharides. The content of fructo-oligosaccharides, which is a functional substance, was the highest in yacon cultivated in Jinbu. Based on the productivity and functional fructo-oligosaccharides, the optimum areas to cultivate yacon are Jinbu and Bonghwa, which are located in the middle-highland zone (500-560 m) and have a suitable growth temperature of $18-25^{\circ}C$. The results of the present study indicate that temperature could be the factor with the greatest influence on the root growth of yacon.

조현병 환자들의 일상적 의사결정 과정에서 무쾌감증 및 자아존중감의 영향

김수정,김민경,홍연주,이선구,김재진,Kim, Soo-Jeong,Kim, Min-Kyeong,Hong, Yeon-Ju,Lee, Seon-Koo,Kim, Jae-Jin 대한생물정신의학회 2017 생물정신의학 Vol.24 No.3

Objectives Decision-making in patients with schizophrenia has been known to be inefficient in both cognitive and affective aspects. The purpose of this study was to investigate the influence of anhedonia and self-esteem on the decision-making process in schizophrenia. Methods Twenty patients with schizophrenia and 21 healthy controls performed the 'apparel purchase decision-making task', during which they were asked to respond to the preference, fitness, and price suitability, before making the final purchase decision. Generalized estimating equation and correlation analysis were conducted to explore for the difference of decision making patterns and influential factors between the two groups. Results The patients showed lower odds ratio (OR) of the fitness on the apparel purchase decision than the controls [OR 0.190 ; 95% confidence interval (CI) 0.047-0.762, p = 0.019). In the patient group, there was no correlation between the number of purchased trials and the severity of anhedonia, but the number of purchased trials was negatively correlated with the Rosenberg Self-Esteem Scale score at a trend level (R = -0.436, p = 0.055). Conclusions Patients with schizophrenia considered the fitness of clothes less than healthy controls on apparel purchasing decisions. Schizophrenia patients with lower self-esteem were intended to buy more clothes.

$(1-x)CaWO_4-xYNbO_4$계 세라믹스의 마이크로파 유전특성

김수정,김응수,Kim, Su-Jung,Kim, Eung-Soo 한국결정성장학회 2007 한국결정성장학회지 Vol.17 No.5

[ $(1-x)CaWO_4-xYNbO_4$ ]계에 대하여 $YNbO_4(0.05{\leq}x{\leq}0.4)$의 치환량 변화에 따른 마이크로파 유전특성을 고찰하였다. x=0.10 조성까지 정방정(tetragonal) scheelite 구조의 $CaWO_4$ 단일상이 확인되었고, 그 이상 첨가 시 fergusonite 구조의 2차상이 증가하였다. $YNbO_4$ 첨가량이 증가할수록 겉보기 밀도는 감소하였는데, 이는 $CaWO_4(6.117g/cm^3)$보다 $YNbO_4(5.581g/cm^3)$가 더 낮은 이론밀도 값을 갖기 때문이다. $YNbO_4$의 첨가량이 증가함에 따라 유전상수(K)와 품질계수(Qf)는 2차상의 증가와 밀도의 감소로 인해 감소하는 경향을 보였고, $YNbO_4$ 치환량에 따른 소결시편의 공진주파수 온도계수(TCF)의 변화는 존재상의 유전체 혼합 법칙(dielectric mixing rule)에 의존하였다. Microwave dielectric properties of $(1-x)CaWO_4-xYNbO_4$ ceramics have been investigated as a function of $YNbO_4$ content($0.05{\leq}x{\leq}0.4$). A single phase with tetragonal scheelite structure was obtained up to x=0.10 and then the secondary phase with fergusonite structure was increased. With the increase of $YNbO_4$ content, apparent densities of the specimens were decreased. This results were due to the lower theoretical density of $YNbO_4(5.581g/cm^3)$ than that of $CaWO_4(6.117g/cm^3)$. Dielectric constant(K) and quality factor(Qf) were decreased with $YNbO_4$ content which could be attribute to the decrease of density and the increase of secondary phase. Temperature coefficient of resonant frequency (TCF) of the specimens with the $YNbO_4$ content was depended on dielectric mixing rule.

KDC 제6판 디자인학 분야 개선방안에 관한 연구

김수정,Kim, Soojung 한국비블리아학회 2013 한국비블리아학회지 Vol.24 No.3

본 연구는 KDC 디자인학 분야의 분류체계를 개선하고자, 선행연구에서 제시된 디자인학 연구분류체계들을 조사하고 KDC, DDC, LCC, NDC를 비교 분석하였다. KDC의 디자인학 분야 분류체계의 문제점으로는 디자인 이론영역과 관련된 분류항목 부족, 주요 디자인 응용분야에 대한 세목 미비, 디자인 범위를 명시하는 주기의 부재 등이 있다. 이러한 문제를 해결하기 위하여 본 연구에서는 디자인 이론영역, 시각디자인, 제품디자인, 환경디자인 분야에 해당되는 분류항목들에 대하여 구체적인 개선방안을 제시하였다. For the purpose of improving the Korean Decimal Classification (KDC) in the design field, this study investigated the classification systems of design research suggested in previous studies and compared KDC, DDC, LCC, and NDC. The problems identified from the current KDC include lack of subdivisions regarding basic design theories and major design application fields and the absence of notes for explaining the scope of each design field. To solve these problems, this study suggested improvements for design theories, graphic design, industrial design, and environmental design.

메티실린 내성 황색포도알균 판독에 있어 항균제 감수성 검사와 mecA PCR법의 비교

김수정,Kim, Su-Jung 한국미생물학회 2011 미생물학회지 Vol.47 No.4

Methicillin-resistant Staphylococcus aureus (MRSA)는 화농성 질환, 균혈증을 유발하고 병원내 감염의 주요 원인균으로 알려져 있다. 병원에서의 MRSA 분리율은 점차 증가하여 80% 이상으로 보고 되고 있으며 Methicillin 뿐만 아니라 다른 항균제에도 내성을 나타냄으로 치료를 위한 항균제 사용에 제한을 받고 있다. 이에 본 연구에서는 MRSA의 정확한 판정을 통해 항생제 남용을 막고자 대부분의 병원에서 사용하는 항균제 감수성 검사법과 경제적인 면으로 인해 병원내에서 많이 사용되고 있지 않지만 정확도가 높은 mecA 유전자 검출법을 서로 비교하였다. 그 결과 대조군인 Methicillin-susceptible Staphylococcus aureus와 실험군 MRSA 20 균주를 대상으로 항균제 감수성 검사법과 mecA 유전자 PCR 검출법을 실시한 결과 MRSA 20 균주는 Oxacillin과 Cefoxitin에 모두 내성을 나타냈으나 mecA 유전자 검출에서는 20 개 중 17 개에서만 유전자가 검출되어 염기서열분석 결과 mecA 유전자임을 확인하였다. 이런 결과로 보아 mecA(-) 3 균주는 mecA 유전자의 변이로 추측할 수 있기에 임상에서의 MRSA의 판정은 항균제 디스크법과 mecA 유전자 PCR 검출법을 동시에 사용함으로 정확한 MRSA 진단에 도움을 주고자 한다. Methicillin-resistant Staphylococcus aureus (MRSA) is one of major pathogen causing hospital infection and several diseases such as purulent infection, bacteremia. The isolation ratio of MRSA is gradually increased up to 80% in the hospital, which makes a limitation for treatment of antibiotics because the isolated MRSA show resistance to methicillin as well as other antibiotics. This study proposes that mecA detecting methods which are not commonly used because of cost in the hospital is a more accurate method than Susceptibility Testing to detect a MRSA. We compared Staphylococcus aureus ATCC 29213 as a negative control and 20 MRSA strains isolated from patients by these two methods. We amplified mecA gene by polymerase chain reaction (PCR) and confirmed the PCR products by sequencing. All of the MRSA showed oxacillin and cefoxitin resistance whereas 85% (16/19) of the strains had mecA wildtype. These results suggest that some of the MRSA are mecA mutants therefore mecA genotyping reinforces the MRSA detection by antibiotic susceptibility test.

저작·연하 용이 소불고기 노인식 개발

김수정,주나미,Kim, Soojeong,Joo, Nami 한국식품영양학회 2014 韓國食品營養學會誌 Vol.27 No.6

This study was conducted to develop for the elderly food that is safe, well-shaped, and easy to chew and swallow, using gelification. Gelatin, which has low adhesiveness, thereby lowering the possibility of being swallowed wrongly into the respiratory track, was used as a viscosity agent for the gelification. Water and gelatin amounts were adjusted to facilitate breaking the food with the tongue. Various foods for the elderly with chewing and swallowing difficulties were used for sensory assessment. Sensory panel consisted of 10 dietitians (10 women) in nursing care facilities. The sensory optimal composite recipes were determined by central composite design (CCD). The sensory measurements were significantly different in appearance (p<0.05), saltiness (p<0.05), sweetness (p<0.01), and overall quality (p<0.05). The optimum formulation of the Korean barbecue beef calculated by numerical and graphical method was 3.71 g of sugar and 19.53 g of soy sauce. Moisture content, hardness and adhesiveness of the Korean barbecue beef were 78.85%, 2.40, -1.87, respectively. The result shows that food for the elderly, which is easy to chew and swallow, using gelification will have sufficient competitiveness in terms of safety, taste, and preference. The development of food for the elderly that take into account the difficulties in chewing and swallowing among the elderly, reflects their preference, and has sufficient nutrients, is important to enable the elderly to enjoy their meals. Also, as the Korean society is getting older, it remains one of the biggest social challenges.

최근 5년간(2011~2015) 사상체질분야 논문의 통계기법 분석 및 오류에 관한 연구

김수정,김상혁,이시우,Kim, Sujung,Kim, Sanghyuk,Lee, Siwoo 사상체질의학회 2016 사상체질의학회지 Vol.28 No.1

Objectives This study was to identify the types of errors in the statistical analysis and trends of previous reported papers that used various statistical techniques.Methods We have selected 118 original articles for statistical review from the OASIS(http://oasis.kiom.re.kr) and the Pubmed(http://www.pubmed.gov) in the field of Sasang constitutional medicine. Published year was restricted from 2011 to 2015.Results 1. The ANOVA(25.72%) was the statistic of choice overall, followed by the chi-square test(21.74%), regression analysis(14.13%), t-test(11.59%), and etc. 2. By examining the errors of the statistical methods, there were 42(59.2%) thesis with errors among 71 thesis using ANOVA, 19(31.7%) thesis among 60 thesis using chi-square test, and 35(89.7%) over 39 thesis using regression analysis.Conclusions To improve the quality of Sasang Constitution, the participation of statisticians in research design will reduce the significant errors in statistical interpretation of the results.

면직물에의 아크릴산 에스테르의 그라프트중합

김수정,유효선,김성련,Kim, Su-Jeong,Yu, Hyo-Seon,Kim, Seong-Ryeon 한국섬유공학회 1991 한국섬유공학회지 Vol.28 No.12

Graft copolymerization of three acrylic acid ester, methyl acrylate(MA), ethyl acrylate (EA) and butyl acrylate(BA), onto cotton fabrics has been carried out in aqueous emulsion medium which contains ceria ammonium nitrate as an initiator. The factors that affect the graft yield and the graft efficiency such as the kinds of monomer(MA, EA, BA) , initiator concentration, grafting time, grafting temperature and monomer concentration were investigated. And some physical properties of acrylic acid esters grafted cotton fabric were tested. The results are as follows. There is an optimum range giving the maximum graft yield for the concentration of initiator and for the grafting temperature. The ranges were 0.01~0.02mol(conc. of initiator) and 30~45$^{\circ}C$ (grafting temperature). The graftlyields were increased with grafting time, and monomer concentration. Among the three monomers used in this experiment, MA was grafted more easily than the others. This result seemed to be due to the fact that MA has the smallest side chain. Roughly, the graft efficiency was inversely proportional to the graft yield. The thickness of acrylic acid ester grafted cotton fabric was increased, but moisture regain and tensile sirengh were decreased with the increase of graft yield.

대학도서관 전자책 관리 및 서비스 실태 분석: A와 B 대학도서관을 중심으로

김수정,이지원,Kim, Soojung,Lee, Ji-Won 한국도서관정보학회 2016 한국도서관정보학회지 Vol.48 No.1

본 연구는 국내 대학도서관에서 전자책 관리 및 서비스 실태를 파악하고 관련한 현안을 진단하는데 목적이 있다. 이를 위하여 지방에 소재하는 A와 B대학도서관을 대상으로 사례연구를 실시하였다. 각 도서관으로부터 전자책 관리 및 서비스 이용통계를 수집하였으며 전자책 담당사서들과 면담을 실시하였다. 면담은 전자책 도입현황, 예산 및 수서, 접근 및 목록, 이용, 홍보 측면에서 실태를 조사하고 전자책 관리 및 서비스의 어려움과 현안에 대해 의견을 수집하였다. 분석 결과, 두 대학 모두 종이책과 비교했을 때 전자책 이용률이 낮았으며 특히 최근에 이용률이 하락한 것으로 나타났다. 이는 전자책 예산 확보의 어려움으로 인한 신간도서 미비가 주요한 원인으로 보인다. 또한 전자책 수서와 관련한 가장 중요한 현안은 2015년에 제정된 대학도서관진흥법에 따른 대학도서관 평가인 것으로 나타났다. 본 연구는 이러한 도서관 평가기준이 현재 전자책 수서 및 관리 방식에 어떤 영향을 미치는지 논의하였다. This study aims to analyze the current status of e-book management and services in academic libraries and identify related issues in the provision of the services. To do that, it performed case studies with A and B university libraries. E-book usage statistics was collected from each library and interviews were conducted with librarians responsible for e-book management and services. The interviews included questions regarding obstacles to e-book management and services and current issues as well as budget and acquisition, access and catalogues, usage, and marketing for e-books. The results show that in both libraries, the usage of e-books is low compared with that of printed books and the usage of e-books has declined recently. This is because of lack of new books with shortage of budget. Also, the most important issue surrounding e-book services is academic library evaluation, enacted by Academic Library Promotion Act in 2015. This study discussed how the criteria for academic library evaluation influence the way the academic libraries acquire and manage e-books.

혈관미주 신경성 실신 소아에서 기립경사 검사 동안에 뇌혈류 변화

김수정,염혜원,홍영미,유정현,이숙희,김종희,Kim, Su Jung,Yom, Hye Won,Hong, Young Mi,Yoo, Jung Hyen,Lee, Sook Hee,Kim, Chong Hee 대한소아청소년과학회 2003 Clinical and Experimental Pediatrics (CEP) Vol.46 No.10

목 적 : 실신은 소아에서 가장 흔한 증상이지만 기전은 잘 알려져 있지 않다. 증가된 미주신경의 활동과 감소된 교감신경의 자극이 저혈압, 서맥을 일으키고 마침내는 의식 소실을 초래한다. 이 연구의 목적은 혈관미주 신경성 실신으로 진단된 소아에서 기립경사 검사를 하는 동안 뇌 도플러 초음파를 실시하여 실신 전후의 뇌혈류 속도와 혈압, 심박동수 변화를 측정하고자 하였다. 방 법 : 실신의 과거력을 갖고 있는 64명의 소아를 대상으로 혈압을 10분간 안정 후와 15분 동안 기립 후에 측정하였고, 기립 경사 검사는 $80^{\circ}$에서 45분간 시행하였다. $80^{\circ}$ 각도의 경사 테이블에서 소아를 5분 간격으로 45분 동안 혈압, 심박동수, 산소 포화도를 측정하였다. 기립경사 검사를 하는 동안 실신이나 실신 전 증상이 나타난 소아에서는 검사를 중단하였다. 12-유도 심전도, 뇌파 검사, 심장 초음파를 시행하였다. 기립경사 검사에서 양성으로 나온 10명의 소아에서 Acouson 128XP/10 model 초음파 기기를 이용하여 중 대뇌동맥 혈류 속도, pulsatility 지수, time velocity integral, 혈압, 심박동수, 산소포화도 등을 측정하였다. 결 과 : 기립경사 검사에서 31.3%(20/64)의 양성률을 보였다. 검사 동안에 혈압과 맥박은 감소되지 않았고 뇌혈류 속도와 integral은 유의하게 감소되었다. 결 론: 뇌혈류 속도는 혈압이나 심박동수가 감소하기 전에 미리 감소하므로 실신 전 증상을 미리 예측할 수 있다. 뇌혈류의 자율 조절의 장애가 혈관미주 신경성 실신의 병인론에 중요한 역할을 하리라 생각된다. Purpose : Syncope appears to be common. However, the mechanism of syncope is not clear. Increased vagal activity and withdrawal of sympathetic stimulation cause hypotension, bradycardia and finally loss of consciousness. The purpose of this study was to evaluate changes of cerebral blood flow velocity, blood pressure, and heart rate during tilt test in children with vasovagal syncope. Methods : Sixty four children with a past history of syncope were evaluated. The stand up test was performed for 15 minutes after a rest at supine position for 10 minutes, followed by an $80^{\circ}$ tilt test lasting 45 minutes. If presyncope(lightheadedness, nausea, blurred vision, or sweating) or syncope occurred, the study was discontinued. 12-lead electrocardiography, echocardiography, and electroencephalography were performed. Transcranial Doppler study was performed at the middle cerebral artery with 2 MHz continuous Doppler probe in 10 children with positive tilt test. Systolic, diastolic, mean cerebral blood flow velocity, integral, and pulsatility index were measured with blood pressure, heart rate, and $O_2$ saturation. Results : The positive rate of tilt test was 31.3%(20/64). Systolic, diastolic, and mean cerebral blood flow velocity decreased significantly in absence of hypotension or bradycardia during presyncope. Time velocity integral of cerebral artery also decreased significantly. Conclusion : Decreased cerebral blood flow velocity can predict the presyncope manifestation. Impairment of autoregulation of cerebral blood flow might play an important role in the pathophysiology of vasovagal syncope.