• 한국발생생물학회지:발생과생식
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• 제22권1호
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• pp.1-8
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• 2018

The annual reproductive cycle of the Korean endemic slender catfish, Silurus microdorsalis, was examined histologically regarding water temperature and day length of habitat, gonadosomatic index (GSI), and development characteristics of female and male gonads. The maximum GSI value was found in May, $1.23{\pm}0.33$ and $11.77{\pm}3.23$ for male and female respectively (habitat water temperature $21.5^{\circ}C/13.59hr$ day length). On the other hand, the minimal level was $0.63{\pm}0.10$ in July ($26.5^{\circ}C/14.17$) for male and $1.36{\pm}0.08$ in October ($20^{\circ}C/11.2hr$) for female. We compared and calculated the stages of testis and ovary development process in order to determine the germ cell development characteristics and the reproductive cycle. According to results, we classified the annual reproductive cycle of the slender catfish into five stages: Growing phase (December-February), Mature phase (March-April), Ripe and spawning phase / Releasing phase in male (May-June), Degenerative phase (July-August), and Resting phase (September-November).

• 산경연구논집
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• 제10권4호
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• pp.7-12
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• 2019

Purpose - The purpose of this study is to analyze the current status of various fusion research journals and its operational strategies, comparing them to those of IJIDB. Research design, data, and methodology - This study focused on the content analysis and strategies of operations for other convergence journals, comparing them to IJIDB in terms of the number of publication journals, publications, academic scope, and the impact factor. Results - IJIDB is relatively new and in its developmental stages compared to other convergence journals. But, IJIDB also shows much promise in that it came second in the field of economic publications of 54 journals in 2017. In order to To elevate IJIDB journal to the top in Korea Citation Index Journals, KODISA should host more international conferences to increase its international recognition levels, develop its managerial functions for increased stability, and open more opportunities for Candidates of Ph.D and Masters degree students to publish for fostering and building potential leaders and innovators. Conclusions - IJIDB is a newly born academic journal. In the future, IJIDB will be able to develop exponentially and be one of the leading journals in the Korea Citation Index by continually learning and developing its operational strategies.

• 한국패류학회지
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• 제22권1호
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• pp.1-11
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• 2006

The gonadosomatic index (GSI), oogenesis and reproductive cycle in female Neptunea (Barbitonia) afhritica cumingii were investigated by light and electron microscope observations. In the early vitellogenic oocyte, the Golgi complex and mitochondria were involved in the formation of glycogen, lipid droplets and yolk granules. Late in the vitellogenic oocytes, the rough endoplasmic reticulum and multivesicular bodies were involved in the formation of proteid yolk granules in cytoplasm. In particular, compared with the results of other gastropods, it showed a different result that appearances of cortical granules at the cortical layer and microvilli on the vitelline envelope, which is associated with heterosynthetic vitellogenesis, were not observed in vitellogenic oocytes during oogenesis. A mature yolk granule was composed of three components: main body (central core), superficial layer, and the limiting membrane. Monthly changes in the gonadosomatic index in females studied in 2004 and 2005 were closely associated with ovarian developmental phases. Spawning occurred between May and August in 2004 and 2005 and the main spawning occurred between June and July when the seawater temperature rose to approximately $18-23^{\circ}C$. The female reproductive cycle can be classified into five successive stages: early active stage (September to October), late active stage (November to February), ripe stage (February to June), partially spawned stage (May to August), and recovery stage (June to August).

• 한국발생생물학회지:발생과생식
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• 제25권1호
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• pp.67-72
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• 2021

This study investigated the IGF-1 signal in specific tissues using Pacific oysters artificially matured via water temperature elevation. Pacific oysters were subjected to water temperature elevation from March to June, and 20 were randomly sampled each month. The condition index (CI) and tissue weight rate (TWR) were examined by measuring shell length, shell height, shell width, and soft tissue weight. The IGF-1 signal in tissues (adductor muscle, digestive glands, gills, labial palps, mantle edges, and gonads) was analyzed by sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) and Western blotting. From April to June, the TWR of females and males increased from 19.1±2.9 to 21.0±3.6 and 18.2±2.0 to 19.2±2.5, respectively, while the CI remained the same. The IGF-1 signal in each tissue differed. IGF-1 was expressed in the adductor muscle, while tyrosine was expressed in all tissues. The phosphor (p)-ERK and p-AKT activities were high in the adductor muscle, mantle edge, and gonads. IGF-1 signaling affected the growth and maturity of the Pacific oysters examined.

• 한국발생생물학회지:발생과생식
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• 제26권4호
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• pp.165-174
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• 2022

Three proteins [myosin heavy chain (MHC), filamin-C fragment (FIL-C), and actin 2 (ACT2)] were identified in adductor muscle from diploid and triploid Pacific oysters (Crassostrea gigas) and the relationship between the condition index (CI) and mRNA expression of these genes was investigated, together with the mRNA expression of molluscan insulin-related peptide (MIP), C. gigas insulin receptor-related receptor (CIR), and insulin-like growth factor binding protein complex acid labile subunit (IGFBP-ALS). Monthly changes in the CI were similar to the changes in the tissue weight rate in both groups. ACT2 and MHC mRNA expression was statistically higher in the triploid than the diploid, while FIL-C mRNA expression was significantly higher in the diploid (p<0.05). The MIP, CIR, and IGFBP-ALS mRNA expression of the diploid oysters were all significantly higher in July than in other months (p<0.05). The MIP, CIR, and IGFBP-ALS mRNA expression in the triploid oysters was high in July, but there were no significant differences (p>0.05). Changes in the expression levels of the genes investigated in this study could be used as intrinsic indicators of the annual growth, maturity, and spawning period of cultured diploid and triploid C. gigas in Tongyeong, Korea.

• 동의신경정신과학회지
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• 제16권2호
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• pp.25-34
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• 2005

Background and Objectives There was no clinical data except literary study on mutual correlation with autistic disorder in Western medical diagnosis and five kinds of flaccidity in infants(五軟), five kinds of retardation(五遲) in Oriental medical diagnosis. This study was performed to investigate the correlation of five kinds of flaccidity in infants(五軟), five kinds of retardation(五遲) to the children with autistic disorder and to set the time table for clinical diagnosis of developmental retardation by making a comparative study of normal developmental children so we can treat the children with autistic disorder in good time. Method We made the comparative study of interview sheets recorded by parents of total 163 children who were diagnosed as autistic disorder who visited HaeMa Oriental Medical Clinic with interview sheets recorded by parents of generally accepted normal developmental children(263) and then we took statistics. Results : 1. There was significant correlation with speech and walking among five kinds of flaccidity in infants(五軟), five kinds of retardation(五遲) in autistic disorder statistically and clinically in comparison with normal children. 2. There wasn't significant correlation with growth time of tooth among five kinds of flaccidity in infants(五軟), five kinds of retardation(五遲) on diagnosis of autistic disorder in comparison with normal children. 3. There was significant correlation with retardation of times going to toilet by oneself (it does not consist in five kinds of flaccidity in infants(五軟), five kinds of retardation(五遲).) in both of autistic disorder. Conclusion Autistic disorder was significantly correlated with the faculty of speech(語遲), retardation in walking out(行遲) of five kinds of flaccidity in infants(五軟), five kinds of retardation(五遲). We need to concrete the index of diagnosis, because it is so difficult to measure times and register retardation in tooth eruption(齒遲), retardation in hair-growing(髮遲), debility of neck and nape(頭項軟), flaccidity of extremities(手軟) and flaccidity of muscle(肌肉軟). And we can also use times going to toilet by oneself as one of diagnostic criteria because of its significant correlation. It is required to make early diagnosis of five kinds of flaccidity in infants(五軟), five kinds of retardation(五遲) using these criteria, and to treat them early by oriental medicine.

• 원예과학기술지
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• 제29권3호
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• pp.181-186
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• 2011

포도 '캠벨얼리'의 발아기 예측을 위해 자발 휴면 타파 이후 발아일까지의 발육 속도(DVR) 계산식을 도출하였다. 항온 실험에서 계산한 DVR은 온도에 대하여 지수 함수식 또는 선형 함수식 모형으로 증가하는 경향이며 DVR 기울기는 0.0019 내외였다. 포도 DVR 계산식은 대기 온도에 대하여 $DVR=0.0249+0.0020e^{0.1654x}$ 또는 DVR = 0.0019x + 0.0187이었으며, DVR 계산식에 일 평균 기온을 대입하여 계산한 예측 발아일의 실측 발아일에 대한 적합도 검정 RMSE 값이 4일 이하로 작았다. 또한 DVR 계산식에 시간별 온도 자료를 대입한 경우에는 일 평균 기온 자료를 사용한 경우보다 오차 값이 작았으며 이때 RMSE 값은 3일 이하였다. 이는 본 연구에서 계산한 DVR 계산식이 포도 발아기 예측에 유용한 예측 값을 제공할 수 있다는 것을 의미한다.

• 한국어류학회지
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• 제12권3호
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• pp.192-202
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• 2000

주둥치의 암 수 성비는 1.81 : 1로 암컷의 비율이 높게 나타났다. 난모세포 발달양식은 난군동기발달형에 속하며, 정소 조직상은 정원세포 국재형에 속한다. 암 수 모두 첫 번째 군 성숙에 도달하는 크기는 전장 7.5 cm로 조사되었다. 암컷의 생식소중량지수(GSI)는 7월에 12.83으로 가장 높았고, 9월에는 1.08로 가장 낮았다. 수컷의 GSI는 6월에 19.0으로 가장 높았고, 10월에 0.24로 가장 낮았다. 암컷의 간중량지수(HSI)는 GSI와 같은 경향의 변화를 보였다. 가슴반점지수(TSI)는 생식소의 성숙 및 완숙시기인 5월부터 7월 사이에는 낮은 값을 보였다. 암컷의 생식주기는 성장기 (3~5월), 성숙기(5~6월), 완숙 및 산란기 (6~8월), 회복기 (8~11월) 그리고 휴지기 (11~3월)로 구분할 수 있었다. 수컷의 생식주기는 분열증식 및 성장기 (1~4월), 성숙기 (4~5월), 완숙 및 방정기(6~8월), 회복기 (8~10월) 그리고 휴지기(10~12월)로 구분할 수 있었다.

• 한국보육지원학회지
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• 제1권1호
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• pp.83-101
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• 2005

조산 및 발달지연 등으로 발달장애의 가능성이 높은 고위험집단으로 진단된 132명의 영아를 대상으로 인구통계학적, 산전, 출산시 변인 및 산후 발달지표 등이 Bayley영아발달검사(BSID) 수행에 미치는 영향을 살펴보았다. 인구통계학적, 출생전후의 관련정보 및 영아기의 발달특성을 알기 위해 영아발달 질문지와 병원 의무기록지를 사용하였고, Bayley영아발달검사를 개별적으로 실시하였다. 인구통계학적 변인과 BSID의 인지발달지수(MDI), 동작발달지수(PDI)간의 상관 및 평균비교분석결과 산모의 학력이 높을수록 MDI 및 PDI가 높게 나타났다. 산전(prenatal) 관련변인과 발달간의 관계분석시 산전 산모의 질환과 임신중 약물복용여부는 각각 MDI 및 PDI와 부적 상관을 보였다. 출산시(perinatal) 관련변인에서는 저체중 출산, 인큐베이터, 산소호흡기의 사용 및 조산여부가 MDI 및 PDI와 정적 상관을 보였으며 출산시 질환은 PDI에 부적 영향을 미쳤다. 산후 발달지표 중 옹알이, 첫말의 발달은 BSID의 MDI 및 PDI와 정적 상관을 보였으며, 질환은 PDI와 부적 상관을 나타났다.

• 한국문헌정보학회지
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• 제41권3호
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• pp.145-164
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• 2007

21세기는 문화가 중심이 되는 시대라고 한다. 소득이 증가할수록 인간의 문화에 대한 관심은 삶의 질적 수준 향상과 문화욕구의 증대로 나타난다. 따라서 구성원들의 문화욕구 충족을 위한 도서관 서비스가 필요한 시점이라고 본다. 본 연구의 목적은 대학도서관의 문화행사를 실증적으로 분석 평가함으로써 보다 성공적인 도서관문화행사 개발전략을 위한 방안을 제시하여 대학도서관의 문화서비스 향상을 꾀하는데 있다. 구체적인 사례로서 S여대 도서관의 문화행사를 대상으로 분석 평가하였다. 평가의 초점은 1) 문화행사 전반에 대한 이용자들의 인식 2) 문화행사 내용(주제) 선정에 관한 만족도 3) 홍보방법에 대한 만족도 4) 운영형태에 대한 만족도 5) 이용자의 참여도 등 5가지 측면에 두었다. 그 분석결과를 토대로 향후 대학도서관의 문화행사 전략에 대한 구체적 방안을 제안하고자 한다.