• Title/Summary/Keyword: 성 성숙

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Studies on Bovine Maturation and Developmental Acquisition after Treatmtent with Different Cryoprotectants 1. Toxic Effects of Propanediols on In Vitro Maturation and Fertilization Bovine Oocytes (소 수정란의 동결처리에 의한 난자성숙과 발육능 획득에 관한 연구 1. 미성숙 소난자의 시험관내 성숙과 수정시 Propanediols의 독성 효과)

  • 석호봉;파스칼멕미오
    • Journal of Embryo Transfer
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    • v.8 no.1
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    • pp.25-30
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    • 1993
  • 소 난자의 시험관내 수정시 이성체인 1, 2 propanediol과 1, 3 propanediol과의 동결보호제의 이용에 대한 독성효과를 조사하였다. 프랑스에 있는 도축장의 난소에서 채취한 미성숙 난자 212개를 시험관내 성숙과 heparin(10$\mu$g/ml)첨가에 의한 수정 및 배양을 실시하였다. 소 난자의 시험관내 성숙과 수정시 propanediol의 독성효과를 시험한 결과 1,3 propanediol은 80%의 정상 난할분할율과 5.7%의 낮은 다핵분할구율을 나타내었다. 이것은 1,2 propanediol의 73.9%, 10.3%와 미처리대조구의 73.9%, 7.7%와 비교되었으나 처리간의 유의성은 없었다. Heparin 처리구는 1,2 propanediol의 첨가 유무에 관계없이 미처리구에 대하여 고도의 유의성 차이가 인정되었다. (P<0.05)

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The Effect of Career Identity and Krumboltz's Task Approach Skills on Career Maturity, Career Barriers, and Career Aspiration (진로정체감과 Krumboltz의 과제접근기술이 진로성숙도, 진로장벽, 진로포부에 미치는 영향)

  • Kim, Kyoung-Mi;Bae, Young-Kwang;Min, Yi-Seul;Jang, Sung-Hwa
    • The Journal of the Korea Contents Association
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    • v.14 no.11
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    • pp.497-508
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    • 2014
  • The current study examined the relationships between task-approach skills of optimism, bearability, intolerance of uncertainty, career identity, career maturity, career barriers, and career aspiration. Data was collected from two-hundred sixty nine college students who matriculated in colleges located in Seoul, Gyeoungi and Chungchung provinces in Korea. The correlation analysis and multiple linear regression were carried out to explore the relationship among the variables mentioned above. The results of this study were as follows: First, career identity was positively correlated with career maturity, aspiration and negatively with career barrier. optimism was negatively correlated with career barrier. in addition, intolerance of uncertanity was positively correlated with career maturity. and negatively with career barriers. Second, multiple linear regression revealed that career identity, optimism and lacking intolerance of uncertanity significantly influenced career maturity, career identity, optimism and intolerance of uncertanity significantly influnced career barriers. In addition, only optimism influnced career aspiration. These findings implied that career counselors need to assist clients developing optimism, flexibility, bearability and counselors should be aware of the effect of task-approach skills on career, barriers, and aspiration. Further discussions regarding results are included.

Skeletal Maturity Evaluation using Maxillary Canine Development in Growing Children (성장기 아동의 상악 견치를 이용한 골격적 성숙도 평가)

  • Yoo, Hyunkyoung;Ra, Jiyoung;Lee, Jewoo
    • Journal of the korean academy of Pediatric Dentistry
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    • v.46 no.3
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    • pp.247-254
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    • 2019
  • This study aimed to investigate the correlation between maxillary canine's dental maturity and skeletal maturity of growing children. Cephalometric radiographs, hand-wrist radiographs and panoramic radiographs of 299 children aged 6 - 17 years were analyzed to measure the cervical vertebral maturation stages (CVMS), skeletal maturity indicators (SMI) and Demirjian index (DI). Spearman correlation test was used to analyze the correlation between dental maturity and skeletal maturity. There was significant positive correlation between the DI and CVMS in both boys and girls (p = 0.000). Similarly positive correlation was found between the DI and SMI (p = 0.000). The results of this study suggest that the dental maturity of maxillary canine can be used as auxiliary maturity indicator in growing children.

Increased mRNA Related Ovarian Maturation during Induction of Maturational Competence in Red Seabream, Pagrus major (참돔, Pagrus major의 성숙능력 유도시 증가된 난성숙 관련 mRNA)

  • Choi, Cheol-Young;Chang, Young-Jin;Takashima, Fumio
    • Development and Reproduction
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    • v.4 no.1
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    • pp.125-131
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    • 2000
  • This study has used differential display-PCR, to amplify genes transcribed during the ovarian maturation induced by human chorionic gonadotropin (hCG). The cDNA expressed at the times of acquisition of oocyte maturational competence in red seabream (Pagrus major) following treatment with hCG was amplified and cloned. A full-length of cDNA for p. major was isolated using differential display-PCR and 5'RACE. This cDNA clone contained 2,662 nucleotides including the open reading frame that encoded 434 amino acids. Homology analyses, using the GenBank and EMBL general database searches, indicated that the nucleotides sequence of the cDNA does not have high homology with any other genes. This cDNA was judged to be a gene, which induction of maturational competence coincides with increase of mRNA related ovarian maturation. Consensus sequences which were consistent with protein kinase C phosphorylation sites and casein kinase II phosphorylation sites were identified. in vitro, the transcription level of mRNA related ovarian maturation increased between 9hr and 24hr following treatment of ovarian follicles with hCG. It was also increased after GtH-II (300 ng/ml) stimulation. Furthermore, in vivo, mRNA related ovarian maturation was rarely expressed prior to the acquisition of oocyte maturational competence, but was strongly expressed after the acquisition of oocyte maturational competence, suggesting that the hCG induction of maturational competence is brought about by the de novo synthesis of the mRNA related ovarian maturation in p. major.

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In Vitro Growth and Maturation of Mammalian Oocytes (포유동물 난자의 성장과 성숙)

  • Kato, S.;Miyano, T.;Hirao, H.;Miyake, M.
    • Korean Journal of Animal Reproduction
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    • v.19 no.4
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    • pp.323-329
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    • 1996
  • In vitro cultrue systems for the growth of sma-II oocytes and for meiotic maturation are expected to provide a new source of a large population of oocytes as well as assistance in basic physiological studies of oogenesis. Mouse oocytes mid-growth phase can complete grovvth and acquire full developmental capacity in vitro. On the other hand, growing pig oocytes need some other factors. FSH at a low concentration maintains the viability of both oocytes and granulosa cells, and hypoxanthine promotes the meiotic competence of the oocytes during culture period. Considerable improvement in the culture systems for growth of pig oocytes, suggested from mouse studies, and for oocyte maturation could help to develop this technology in larger species.

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How Government Policy Affects to Entertainment Industry?: Case Study of Korean Film History (영화산업 발전단계를 바탕으로 본 문화콘텐츠산업의 정부개입과 산업 성숙도의 연관성)

  • Kwon, Heog-In;Rhee, Hyunjung
    • The Journal of the Korea Contents Association
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    • v.14 no.7
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    • pp.386-394
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    • 2014
  • Entertainment Industry, with high productivity of added value, is noticed as a major industry leading global economy. Thus the government has been constantly attempting to devise various plans for developing entertainment industry, but the plans are mostly come out according to currently faced issues rather than considering the whole industry interior interaction. We are mainly objective to find a ground for estimating the current entertainment industry status. For this, we borrowed the concept of 'maturity' from various capacity maturity estimation tools. We also analyzed Korean film industry as a representative entertainment industry case to find what and how government intervention has affected on the industry.

Effect of Career Group Counseling Program on Career Attitude Maturity and Career Preparation Behavior of Female College Students (진로집단상담프로그램이 여대생의 진로태도성숙도와 진로준비행동에 미치는 영향)

  • Heo, Jeong-Cheol
    • The Journal of the Korea Contents Association
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    • v.13 no.10
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    • pp.356-364
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    • 2013
  • This study aims to show what influence a career group counseling program has on the career attitude maturity in female college students and their career preparation behavior. As a result of the study, it was discovered that there was a statistically significant difference in determinacy and readiness in the sub-areas of career attitude maturity while there was no significant difference in reality. Also, there was a statistically significant difference in exploration and preparatory behavior in sub-areas of the career preparation behavior. Such results indicate that the career group counseling program had a significant influence in the career attitude maturity and their career preparation behavior. Therefore, this study suggests that to enhance the career attitude maturity in female college students and their career preparation behavior, further organized research on career group counseling programs is needed and its utilization should be increased.

Effect of Career Group Counseling Program on Career Attitude Maturity and Career Decision-Making Self-Efficacy of Adolescents on Probation (진로집단상담프로그램이 보호관찰소 청소년의 진로태도성숙도와 진로결정자기효능감에 미치는 영향)

  • Heo, Jeong-Cheol
    • The Journal of the Korea Contents Association
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    • v.15 no.11
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    • pp.154-164
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    • 2015
  • The aim of this study is to analyse the effects of a career group counselling program on career attitude maturity and career decision self-efficacy in adolescents under probation. As a result, it was discovered that the career group counselling program had statistically significant differences in reality and preparedness among the sub-areas of career attitude maturity while there were no significant differences in determinacy. Also, the career group counselling program had statistically significant differences in goal selection, job information and future plans among the sub-area of career decision self-efficacy while there were no significant differences in problem solution. These results suggest that the career group counselling program had significant effects on career attitude maturity and career decision self-efficacy. For better career attitude maturity and career decision self-efficacy in adolescents under probation, more organized studies on career group counselling programs are needed and their usability should be reinforced.

Changes in Protein, Rheology and Bread-Making Properties of Wheat during Kernel Maturation (소맥(小麥)의 성숙(成熟)에 따른 단백질(蛋白質), 리올로지 및 제(製)빵특성(特性)의 변화(變化))

  • Chang, Hak-Gil;Byoun, Kwang-Eui
    • Applied Biological Chemistry
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    • v.28 no.4
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    • pp.278-283
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    • 1985
  • These studies were conducted to investigate the changes and relation in protein, rheology and bread-mating properties during hard and soft wheat maturation. Samples were collected from the fields at 25 to 50 days after heading at intervals of 5 days. Protein content, sedimentation value and Pelshenke value of the tested wheat kernel or flour differed significantly between hard and soft wheat, and was relatively constant at 35 to 40 days after heading in each cultivar. In Mixogram water absorption of the flour, soft wheat increased only slightly, while intermediate and hard wheat increased remarkedly with maturation of the kernel. Total Mixogram characteristics increased and reached its maximum level at 35 days after heading. Farinogram pattern and bread loaf volume of the flour was greatly differences at the early stages of development due to cultivar, and was relatively constant at 40 days after heading. Significant positive and negative correlations were obtained among the protein and rheological properties, and tread loaf volume as the kernel matured.

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Changes of Fruit Characteristics and Cell Wall Component during Maturation and Ripening in Asian Pear 'Hanareum', 'Manpungbae', and 'Niitaka' (Pyrus pyrifolia Nakai) ('한아름', '만풍배' 및 '신고' 배의 성숙 기간 중 과실특성 및 세포벽 관련물질의 변화)

  • Vu, Thi Kim Oanh;Lee, Ug-Yong;Choi, Jin-Ho;Lee, Han-Chan;Chun, Jong-Pil
    • Horticultural Science & Technology
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    • v.30 no.4
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    • pp.345-356
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    • 2012
  • We investigated the changes of fruit quality parameters, polysaccharide contents and cell wall components during maturation and ripening of two Korean pear cultivar 'Hanareum' and 'Manpungbae' compared with 'Niitaka' pear (Pyrus pyrifolia Nakai) which showed different physiological maturity based on days after full bloom (DAFB). Flesh firmness decreased continuously with fruit development and maturation, reaching a final level of 29.4, 33.5, and 27.4N at maturity in 'Hanareum' (127 DAFB), 'Manpungbae' (163 DAFB), and 'Niitaka' (170 DAFB), respectively. The level of ethylene production was very low in early season 'Hanareum' pear which showed at most 0.39 ${\mu}L{\cdot}L^{-1}$ at maturity and no ethylene was detected in 'Manpungbae' and 'Niitaka' at maturity. Fructose was the most abundant soluble sugar during fruit maturation in the pears tested and an increase of sucrose was observed during fruit ripening in the Asian pears commonly. Ethanol insoluble solids (EIS) content decreased gradually with different levels among the pear cultivars as fruit ripens consisted of 10.79, 12.72, and 12.75 $mg{\cdot}g^{-1}$ FW. The amount of total soluble polyuronides was higher in early season cultivars 'Hanareum' than those of mid-season cultivar 'Manpungbae' and 'Niitaka'. In 'Niitaka' which harvested most late season, the level of 4% KOH soluble hemicelluloses was lower than 'Hanareum' and 'Manpungbae' and maintained constantly during fruit ripening period. Cellulosic residues were determined high level in 'Niitaka' which showed 612.33 ${\mu}g{\cdot}mg^{-1}$ EIS at maturity when compared with 'Hanareum' (408.0 ${\mu}g{\cdot}mg^{-1}$ EIS) and 'Manpungbae' (538.67 ${\mu}g{\cdot}mg^{-1}$ EIS). The main constituents of cell wall neutral sugars which consisted of arabinose, xylose, galactose, and glucose were decreased gradually with onset of fruit ripening regardless of cultivar. Arabinose which was predominant in 'Hanareum' pear decreased at the last stage of ripening, but the changes of cell wall neutral sugar during ripening were not occurred in 'Niitaka' pear. The change of molecular mass distribution in water soluble pectin observed dominantly at the early stage of fruit development. Depolymerization of 4% KOH-soluble hemicelluloses and degradation of xyloglucan showed in early-season cultivar 'Hanareum' during fruit maturation, and degradation of those fractions were detected only at the early stage fruit development in mid-season cultivar 'Manpungbae' and 'Niitaka'. The molecular mass profile of CDTA soluble pectin, $Na_2CO_3$-SP and 24% KOH soluble hemicelluloses showed no significant change during fruit maturation regardless of cultivar.