Characterization of the European type of maternal lineage evident in extant Jeju native pigs

Byeong‐Woo Kim,In‐Cheol Cho,Moon‐Sung Park,Tao Zhong,임현태,Sung‐Soo Lee,Hee‐Bok Park,Moon‐Suck Ko,Jun‐Heon Lee,Jin‐Tae Jeon 한국유전학회 2011 Genes & Genomics Vol.33 No.2

Using a partial D‐loop sequence of mtDNA, an intensive analysis was conducted of the maternal lineages of Jeju native pigs (JNPs) from Korea. In total, 100 mtDNA sequences were obtained from Asian wild boars (AWBs), European wild boars (EWBs), Asian domestic pigs (ADPs), European domestic pigs (EDPs), and JNPs and were used for phylogeny and network analyses. Two distinct JNP groups - one (JNPA) in the Asian cluster and the other (JNPE) in the European cluster - were identified in the estimated phylogenetic tree and network. The maternal lineage of JNPE was the closest to that of EWB and a clear haplogroup was identified that shared an identical haplotype (hap04) among 15 individuals of JNPE and 2 individuals of EWB. A Landrace and an EWB shared hap03with a JNPE. EWB, Landrace, Large White, and Duroc formed two clear haplogroups with JNPE in a parsimonious medianjoining network analysis, suggesting that an obvious maternal contribution of EDP has occurred in JNPE in recent years. A pair‐wise mismatch analysis also indicated that JNPE may have experienced a sudden population expansion, suggesting a more recent establishment compared with the gradual population expansion of JNPA. The JNPE group therefore should be further evaluated in order to decide whether this group should be culled or accepted into further programs for maintenance of the JNP population as a pure breed.

Possible Involvement of Photoperiodic Regulation in Reproductive Endocrine System of Female Olive Flounder Paralichthys olivaceus

Hyun Chul Kim,Chi Hoon Lee,Sung Pyu Hur,Byeong Hoon Kim,Jun Young Park,Young Don Lee 한국발생생물학회 2015 발생과 생식 Vol.19 No.1

This study investigated possible involvement of photoperiodic regulation in reproductive endocrine system of female olive flounder. To investigate the influence on brain-pituitary axis in endocrine system by regulating photoperiod, compared expression level of Kisspeptin and sbGnRH mRNA in brain and FSH-β, LH-β and GH mRNA in pituitary before and after spawning. Photoperiod was treated natural photoperiod and long photoperiod (15L:9D) conditions from Aug. 2013 to Jun. 2014. Continuous long photoperiod treatment from Aug. (post-spawning phase) was inhibited gonadal development of female olive flounder. In natural photoperiod group, the Kiss2 expression level a significant declined in Mar. (spawning period). And also, FSH-β, LH-β and GH mRNA expression levels were increasing at this period. However, in long photoperiod group, hypothalamic Kiss2, FSH-β, LH-β and GH mRNA expression levels did not show any significant fluctuation. These results suggest that expression of hypothalamic Kiss2, GtH and GH in the pituitary would change in response to photoperiod and their possible involvement of photoperiodic regulation in reproductive endocrine system of the BPG axis.

이온교환체로서 Polyphenylene Sulfide Sulfonic Acid에 관한 연구

전병광,손원근,서구원,맹학영,김동철,송해영 충남대학교 공업교육연구소 1994 論文集 Vol.17 No.1

Sulfonated poly(phenylene sulfide)(S-PPS) was prepared by the reaction of poly(phenylene sulfide)(PPS) with fuming sulfuric acid. The sulfonation was confirmed by the high intensity band of the SO_3H group at 1190 cm^-1. Thermally crosslinked S-PPS was used for a cation exchange polymer with high thermal stability. The ion exchange capacity of soluble S-PPS(H-form) and insoluble S-PPS(H-form) was 5.16meq/g and 3.50meq/g, respectively. The ion exchange capacity and IR absorbance at 1190cm^-1 of S-PPS were decreased as the curing temperature was increased.

大都市 國民學校 建築計劃 基準設定을 爲한 實態調査硏究(1) : 釜山地域을 中心으로

兪吉濬,姜丙熙 동아대학교 공과대학 부설 한국자원개발연구소 1982 硏究報告 Vol.6 No.1

This study is on the point at issue of primary school campus planning to the betterment of teaching environment. The conclusions are as follow: (1) The 60 pupils per a class by prescribe in the law in force should be facing downward to the 40 pupils. (2) It should be avoided closing type in plot planning. (3) The stories of primary school building need to be restricted 3^(rd). floor. (4) The suitable width from blackboard to front row chair must be maintained. (5) The standard of play ground by prescribe in the law in force seems to be impropered.

오리엔탈나리의 球根 收穫時期와 低溫處理 期間이 生育에 미치는 影響

金熙峻,金正萬,金致善,柳汀,崔泳根,文炳永 한국화훼연구회 2001 화훼연구 Vol.9 No.1

This study was carried out to determine the effect of the duration of chilling treatment and the lifting time of bulbs on growth of Lilium Oriental hybrids for product of cut flower in the type of forcing or semiforcing culture in Korea. "Casablanca", "Acapulco" and "Le Reve" in lilium Oriental hybrids were used in these experiment and carried out from 1999 to 2000 in Iksan, Korea. The bulbs for experiment were lifted on August 27, September 27 and October 27 and the all of them were chilled at 5±1℃ for 0,8,10,12 weeks. Development of the bulbs lifted on October 27 was superior than that of lifted bulbs on August 27 in the three cultivars. The bulbs lilted lately and chilled for a long time were sprouted more earlier and grown faster. In order to increase bulb sprouting until 100%, the duration of chilling treatment of bulbs was need for 12 weeks on August 27, 10 weeks on September 27 and above 8 weeks on October 27. The flowering according to the duration of chilling treatment and the lifting time of bulbs was same above. Consequently, the bulbs should be chilled at 5±1℃ for chilled for 10 weeks at late September and 8 weeks in producted bulbs at late October in earlyㆍMidseason variety fur product of cut flower hut bulbs of late variety should be chilled for 12 weeks at late September and 10 weeks at late October.

Ti-3Al-2.5V 합금의 피로특성 : 온도, 미세조직의 영향을 중심으로 The Effects of Temperature and Microstructure

박동준,김현철,임병수 成均館大學校 科學技術硏究所 1995 論文集 Vol.46 No.2

Ti alloys, with the advantageous tensile strength/density ratio and the chemical stability, have been used widely in the aerospace and chemical engineering industries and their usages are still expanding in various industrial areas. In the automotive industry, because of their superior merits of weight reduction and fuel saving, Ti alloys are expected to be used as various part materials including connecting rods, engine valves, springs and retainers, which are all subjected to the fatigue loads. In this study, using Ti-3A1-2.5V alloy, the effects of temperature and microstructure change on fatigue crack propagation have been investigated.

한국 성인 기억력 평가를 위한 전산화 도구의 개발과 표준화

권준수,류인균,홍경수,연병길,하규섭 大韓神經精神醫學會 2002 신경정신의학 Vol.41 No.2

연구목적 : 본 연구는 전산화 평가도구를 개발하고, 신뢰도와 타당도를 검증하며, 표준화 자료를 얻기 위하여 수행되었다. 방 법 : 숫자 따라하기검사, 시각 단기기억력검사, 한글언어청각학습검사, 시각도형학습검사를 전산화하였으며, 27명의 정상인을 대상으로 하여 검사-재검사 신뢰도를 검증하였다. 타당도를 검증하기 위하여 48명의 정상인을 대상으로 검사 성적을 기존의 인지기능 검사 성적과 비교하였으며, 또한 본 연구에서 개발된 검사들의 내적 일치도를 평가하였다. 20세부터 50세까지 고졸이상의 학력을 가진 한국 남녀 성인 150명을 대상으로 표준화 자료를 얻었다. 결 과 : 전산화 기억력 검사들의 검사-재검사 성적은 paired t-test 결과 차이가 없었으며, Pearson 상관계수 0.405∼0.873의 높은 상관관계를 보였다. 숫자 따라하기검사, 시각 단기기억력검사, 언어청각학습검사는 기존의 지필 혹은 전산화 검사 결과와 높은 상관관계를 보였다. 시각도형학습검사는 유용한 검사이나, 향후 방법론적 개선이 필요한 것으로 생각된다. 전산화 기억력 검사 성적은 학력이 높을수록 우수하였으며, 성별과 연령도 결과에 영향을 미쳤다. 전산화 기억력 검사의 표준화 자료와 해석기준을 제시하였다. 결 론 : 20세부터 50세까지 고졸 이상의 학력을 가진 한국 성인 남녀에서 신뢰성 있고 타당성 있게 사용할 수 있는 전산화 언어 및 시각 기억력 검사도구가 개발되었으며, 표준화 자료와 해석기준이 마련되었다. Objectives : This study was conducted to develop the computerized memory tests for Korea adults. It also aimed at evaluating the reliability and validity of these tests and providing their normative data. Methods : Computerized versions of digit span, visual span, auditory applications and correction. The test-retest reliabilities of each test was evaluated by the paired t-test and Pearson's correlation coefficient using the data from 27 normal persons. The validity of each test was evaluated by the Pearsons's correlation coefficient between the computerized test scores and the pre-existing cognitive function tests using the data from 48 normal persons. The normative data were obtained from the 150 Korean adults, age 20 to 50, whose educational levels were higher than high school graduate Results : There were no statistical difference between the means of the test and retest scores. High correlations were also observed between the tests and the retest scores(r ranged from 0.405 to 0.873). The computerized digit span, visual span, and auditory verval learning tests scores were highly correlated with the pre-existing memory measures. The computerized memory test scores were greatly influenced by the educational level. The visual learning test seems useful, however, it requires methodological refinement. The normative data and guidelines for interpretation were provided. Conclusions : Clinically applicable computerized memory assessment tools with high reliability and validity were developed. The normative data for the Korean adults aged 20 to 50 were obtained and the guidelines for the interpretation were provided.

하악골 골절의 임상적 연구

양병은,김용관,유준영,장현석 大韓顎顔面成形再建外科學會 1997 Maxillofacial Plastic Reconstructive Surgery Vol.19 No.2

The mandible plays a crucial role in the vital human functions of breathing, eating, and speaking. No other bone in the body has such a distinctive shape and function. Because of its prominence in the facial structure, the mandible is highly prone to fracture. A chinical study on 122 patients with mandibular fracture who visited Kangnam General Hospital during 4 year(1992-1995) was done by analysing sex, age, cause, fracture site, teeth involvement, treatment method, complication and involvement of other body part. The results obtained were as follows : 1. The occurrence was more frequent in male than in female with the ratio of 5.4 : 1 and most frequently in twenties. 2. Violence was the most common cause of facial mandibular fracture. 3. In mandibular fracture, fracture site was average 1.5 sites, most frequently in symphysis and simple fracture was 86.1%. 4. As treatment methods, open reduction(78.6%) was used more frequently than closed reduction(21.4%) 5. Post-operational complication occurred in 27.0% of the cases. 6. Other injuries that were related to maxillofacial fracture occurred in 25.4%.

Siriraj Stroke Score 따른 뇌졸중 환자 감별의 적합성

유병대,이명갑,서영조,조준,박찬상,이동필 대한응급의학회 2000 대한응급의학회지 Vol.11 No.4

Background: The differentiation between hemorrhagic(HS) and norhemorrhagic(NHS) stroke is the most important first step in the management of acute stroke because clinical management of the two disorders differs substantially. Neuroimaging studies are useful in diagnosing and distinctioning between HS and NHS. The use of clinical variables, such as Siriraj stroke scores(SSS), has led to good sensitivity, specificity and predictive values. The aim of our study was to evaluate the use of the SSS in the Korean population and assess whether it could aid to expedite treatment decisions. Methods: We reviewed 111 cases of stroke patients admitted to our hospital via the emergency department over a 6 months period from July to December 1998. Levels of consciousness, vomiting, headache, and atheroma markers used in the SSS were applied to these patients who met the criteria for a stroke. Results: Of the 111 patients, the SSS classified 83 with sensitivities of 81.1%(NHS) and 73.3%(HS) and positive predictive values of 84.3% and 68.8%, respectively. The overall accuracy rate was 78.3%. Conclusion: Our results suggest that the SSS is not reliable in distinguishing stroke types in the Korean population. Definite neuroimaging studies are needed prior to thrombolytic therapy.

해외마케팅 지원체계 효율화 방안에 관한 연구

문병준,김한원,박원규 경희대학교 사회과학대학 2001 社會 科學 論叢 Vol.19 No.-

최근 국내 경제는 미국경기 침체에 따른 세계경기의 위축, IT경기의 부진, 경쟁의 격화, 환율의 불안 등의 거시환경의 변화로 인하여 수출부진에 직면하고 있으며 이러한 수출부진 여파로 인하여 국내기업의 수출채산성 악화, 설비 투자 및 산업생산감소, 제조업 가동률 하락 등의 문제로 이어지고 있다. 이러한 수출부진을 타개하기 위해서는 근본적으로 국내 기업의 대외경쟁력이 강화되어야 하지만, 아울러 정부의 해외마케팅 지원체계의 효율화가 강구될 필요가 있다. 수출기업의 애로점으로 해외시장의 동향과 바이어리스트 등의 시장정보의 부족을 가장 큰 문제점으로 지적되고 있고, 정부에서는 해외마케팅 지원을 위하여 그간 무역전시회, 시장개척단, 수출구매상담회 등을 추진해오고 있다. 그러나 각 부처의 해외마케팅지원활동이 중복되거나 표적고객을 대상으로 하여 지속적으로 이루어지지 못하는 문제점이 노정되고 있다. 최근 마케팅분야 연구에서 잠재고객을 대상으로 하여 여러 형태의 설득 커뮤니케이션 프로그램을 효율적으로 개발하고 실행하기 위해서는 다양한 커뮤니케이션 요소를 통합적으로 계획하고 조정하는 통합적 마케팅 커뮤니케이션의 중요성이 강조되고 있다. 본 연구에서는 정부의 해외마케팅 지원체계의 현황과 문제점을 분석하고 통합적 마케팅 커뮤니케이션 이론을 적용하여 해외마케팅 지원체계의 효율화방안을 제시하고자 한다.