• Title/Summary/Keyword: Natural reproduction

검색결과 412건 처리시간 0.024초

Aesthetic Reproduction in loss of periodontal tissue using gingival ceramic

  • Woo, Changwoo;Hwang, Sunhong;Lee, Keunwoo
    • 대한심미치과학회지
    • /
    • 제14권1호
    • /
    • pp.15-18
    • /
    • 2005
  • In order to recover the esthetic of the missing anterior area, we must consider color, shape of a tooth and the functions of a prosthesis that is harmonized with the surrounding factors. When the tooth of a natural tooth is exposed, we face to challenge to restore them. several factors cause resorption of bones, in flammation, and gum trouble, and a defective prosthesis damages the aesthetics of the gingiva. There are two ways how to solve these problems. One can be done by periodontal surgery and the other can be done by prosthesis. Most patients want aesthetic restoration that is harmonized with their teeth and gingiva. So if prosthesis is fabricated to expose the root exposed, it is far from the patient's expectation.

  • PDF

Protein-Protein Interaction Analysis of KiSS1-Derived Peptide Receptor with Kisspeptin-10 and Kisspeptin-15

  • Nagarajan, Santhosh Kumar
    • 통합자연과학논문집
    • /
    • 제11권1호
    • /
    • pp.9-13
    • /
    • 2018
  • KiSS1-derived peptide receptor, a GPCR protein, binds with the hormone Kisspeptin plays a major role in the neuroendocrine regulation of reproduction. It is important in the onset of puberty and triggers the release of gonadotrophin-releasing hormone. It is a potential drug target for the disorders related to GnRH, hence, analysing the structural features of the receptor becomes important. The three dimensional of the receptor modelled in a previous study was utilised. In this study, we have analysed the protein - protein interaction of the receptor with Kisspeptin 10 and 15. The study revealed the important residues which are involved in the interaction. The result of this study could be helpful in understanding the mechanism of Kiss1 receptor activation and the pathophysiology of the disorders related to the receptor.

자연색 재현을 위한 디지틸 이미징 장치간의 색 관리 시스템 개발 (The Development of Color Management System for Natural Color Reproduction of Digital Imaging Devices)

  • 김홍석;박승옥;박철호;박진희;유종우;김연진;윤흥순;정민호
    • 한국광학회:학술대회논문집
    • /
    • 한국광학회 2003년도 하계학술발표회
    • /
    • pp.82-83
    • /
    • 2003
  • PC의 대량 보급과 인터넷 케이블 망의 전지역적 구축을 통해 디지털 정보의 교류가 활발히 이루어지고 있다. 이에 따라 아날로그 이미지를 디지털화 하는 디지털 카메라나 스캐너와 같은 이미지 입력 장치와, 디지털 이미지를 눈으로 볼 수 있게 하는 모니터나 프린터와 같은 이미지 출력 장치로 구성되는 디지털 이미징 장치들의 사용이 일상화되고 있다. TV나 컴퓨터 모니터를 통한 인터넷 상품 구매는 이미 보편화되어 있고, 스캐너를 사용하여 사진을 스캔하여 수정이나 합성 등의 편집을 한 후 이미지를 웹에 올리거나 사진 프린터로 다시 뽑는 일에도 익숙해져 있다. (중략)

  • PDF

Che-Yong(體用) Logic and Research Methodology

  • YongNam Yun
    • 한국발생생물학회지:발생과생식
    • /
    • 제26권4호
    • /
    • pp.183-190
    • /
    • 2022
  • Today's Eastern philosophers try to use the formal logic organized by Aristotle, saying that there was no logic in the East. This researcher found that Confucius and other Asians used Che-Yong logic. The Che-Yong logic is based on the Che-Yong law, which is a natural law. The Che-Yong law consists of the Che-Yong principle and the Hyeon-Mi principle. The Hyeon-Mi principle is that if there is an appearance on the outside, there is a corresponding cause in it. The Che-Yong principle is that the highest common cause of various appearances is Che, and the Che grows and changes on its own to become a Yong. Identifying Che and predicting Yong is Che-Yong logic. Here, I'd like to introduce Che-Yong logic and suggest a new research methodology to apply it.

Three-Dimensional Structure Prediction of Follicle-Stimulating Hormone Receptor Transmembrane Domain by Homology Modelling

  • Priya dharshini B
    • 통합자연과학논문집
    • /
    • 제16권1호
    • /
    • pp.33-38
    • /
    • 2023
  • The follicle stimulating hormone receptor (FSHR) is a glycoprotein hormone, that belongs to the GPCR superfamily. FSHR plays a major role in reproduction. The aberrant activation of FHS receptor leads to infertility and several reproductive disorders. The recently recognized roles of the FSHR in diverse extragonadal tissues is also closely related to Alzheimer's disease and cancers. Analysing the structural characteristics of the receptor is important in understanding the pathophysiology of diseases associated with the receptor. In this present study, homology modelling of FSHR-TM domain was developed using four different templates. Totally 20 models were developed using single template-based approach and selected three based on the validation of RC plot, RMSD, ProSA, QMEAN and ERRAT values. The developed models would be useful for further research on the structural characteristics and binding characteristics of the FSHR-TM domain.

The Effects of Repeated Passive Movement of Different Velocities on Knee Joint Position Sense in Patients With Post-Stroke Hemiplegia

  • Jo, Su-Jin;Choi, Jong-Duk
    • 한국전문물리치료학회지
    • /
    • 제19권3호
    • /
    • pp.98-104
    • /
    • 2012
  • The aim of this study was to examine the effects of repeated passive movement (RPM) of different velocities on the improvement of knee joint position sense (JPS) in post-stroke patients with hemiplegia, thereby investigate the possibility of clinical application in the initial stage of rehabilitation for patients with post-stroke hemiplegia. Thirteen hemiplegic patients participated in this study. For the subjects' knee JPS tests, a passive angle reproduction test and an active angle reproduction test were performed prior to and after the intervention, which involved 30 repetitions of passive full-range-of-motion flexion and extension exercise of the knee joints at randomized degrees of $0^{\circ}/s$, $45^{\circ}/s$, and $90^{\circ}/s$. Paired t-test analysis was done in order to compare changes in the pre- and post-intervention knee JPS. One-way repeated analysis of variance was used in order to compare changes in JPS after intervention at three different movement velocities. The level of significance was set at .05. The result was that the subjects' post-intervention knee JPS significantly improved after the RPM exercise at a $45^{\circ}/s$ and a $90^{\circ}/s$ relative to the RPM exercise $0^{\circ}/s$ (p<.05). JPS changes with RPM intervention at the rapid velocity of $90^{\circ}/s$ were most increased, suggesting the most effective enhancement in knee JPS is with intervention at the velocity (p<.05). Therefore, RPM intervention at a half or higher velocity improved stroke patients' knee JPS. During the initial stage of rehabilitation for patients with post-stroke hemiplegia, the efficient application of the RPM exercise at a half or higher velocity will be possible.

분변내 스테로이드 호르몬의 측정을 통한 멸종 위기 침팬지의 번식형태와 임상적용 (The Reproductive Patterns and Clinical Application of Endangered Common Chimpanzees by Monitoring the Steroid Hormone Measurements in Fecal Samples)

  • 정소영;김미영;정유정;장유니;임양묵;윤용달
    • 한국발생생물학회지:발생과생식
    • /
    • 제15권2호
    • /
    • pp.167-172
    • /
    • 2011
  • 멸종 위기에 처한 침팬지에서 연중번식주기와 무월경, 번식주기, 임신진단을 포함한 번식형태를 관찰하기 위하여 형광항체 분석법을 사용하여 에스트라디올, 프로게스테론, 테스토스테론 호르몬 대사산물과 인간융모성 성선자극호르몬을 측정하였다. 본 연구결과, 침팬지의 번식능력은 연령이 번식에 중요한 영향을 주는 인자가 아니며, 개체별 번식능력의 차이, 산과질환의 유무, 배우자와 합사한 조건에서 나타나는 성적행동의 차이 같은 여러 가지 요인이 복합적으로 작용한다는 것을 알 수가 있었다. 본 연구는 침팬지의 종보전과 인간과 연관된 폐경과 산과질환을 연구하는데도 유용하게 활용될 수 있을 것이다.

Increased of the Red Blood Cell in Peripheral Plasma of Transgenic Pigs Harboring hEPO Gene

  • Park, J.K.;Jeon, I.S.;Lee, Y.K.;Lee, P.Y.;Kim, S.W.;Kim, S.J.;Lee, H.G.;Han, J.H.;Park, C.G.;Min, K.S.;Lee, C.H.;Lee, H.T.;Chang, W.K.
    • 한국가축번식학회지
    • /
    • 제27권4호
    • /
    • pp.317-324
    • /
    • 2003
  • The present study were performed to analysis the hematocrit and the red blood cells content into the blood plasma of the transgenic pigs harboring recombinent human erythropoietin gene (rhEPO). Mouse whey acidic protein (mWAP) linked to rhEPO gene was microinjected into pronuclei of porcine one-cell zygotes. After delivered of offspring, PCR analyses identified one mWAP-rhEPO transgenic founder offspring(F$_{0}$). The first generation of transgenic pig (F$_{0}$) harboring mWAP-hEPO appeared to be a male, and the second generation (F$_1$) pigs were made by natural mating of F$_{0}$ with domestic swine, and male and female transgenic pigs (F$_1$) were identified by PCR. The blood samples from transgenic and normal pigs were collected for 50 days during lactation and were counted the red blood cell (RBC) numbers and Hematocrit (HCT) content into the blood. The transgenic pigs expressing rhEPO in their blood gave rise to higher RBC numbers and HCT contents than control animals. rhEPO was secreted both in the blood and milk of genetically engineered pigs harboring rhEPO gene. Therefore, this study provides a model regarding the production of transgenic pig carrying hEPO transgene for biomedical research.earch.

사막이리응애의 살응애제에 대한 감수성 (Susceptibility of the Predatory Mite, Neoseiulus californicus (Acari: Phytoseiidae) to Acaricides)

  • 이성민;김상수
    • 농약과학회지
    • /
    • 제19권4호
    • /
    • pp.418-423
    • /
    • 2015
  • 포식성 천적 사막이리응애에 대하여 9종 살응애제의 영향을 평가하였다. 실험 살응애제 중 cyenopyrafen. spirodiclofen, spiromesifen, acequinocyl, bifenazate, flufenoxuron과 cyflumetofen 등은 사막이리응애의 암컷성충에 저독성을 나타내었으며, 암컷성충의 산란수와 산란된 난의 부화에 큰 영향이 없었다. 또한 이들 살응애제의 난에 대한 처리에서도 부화율에 영향이 없었다. Etoxazole은 암컷성충의 생존율에는 큰 영향이 없었으나 이들이 산란한 난의 부화율이 매우 낮았으며, 난에 대한 처리에서 높은 치사율을 나타내었다. Pyraclofos는 암컷성충에 대해 고독성으로 100%의 치사율을 나타내었다. Cyenopyrafen. spirodiclofen, spiromesifen, acequinocyl, bifenazate, flufenoxuron과 cyflumetofen 등을 처리한 먹이를 섭식한 암컷성충은 생존율과 산란수에 실질적인 영향을 받지 않았다. 이상의 결과로 보아 cyenopyrafen. spirodiclofen, spiromesifen, acequinocyl, bifenazate, flufenoxuron과 cyflumetofen 등은 식식성응애류의 종합관리체계에서 사막이리응애와 함께 이용될 수 있을 것으로 생각된다.

Fusarium moniliforme의 Propagule형성(形成)과 발아(發芽)에 미치는 Water Potential의 효과(效果) (Effect of Water Potential on Mycelial Growth, Reproduction and Spore Germination by Fusarium moniliforme)

  • 성재모;이은종;박종성
    • 한국균학회지
    • /
    • 제12권3호
    • /
    • pp.99-103
    • /
    • 1984
  • Fusarium moniliforme strain별 균사신장(菌絲伸長)은 Strain IV은 water agar나 PDA에 관계(關係)없이 -14 bars에서 좋았고 -80 bars에서도 균사(菌絲)자람이 정지되지 않았다. Strain II와 Strain IV 를 비교(比較)하여보면 Strain II가 Strain IV보다 각 water potential 에서 균사(菌絲)자람이 좋았다. 분생포자형성(分生胞子形成)은 Strain에 관계(關係)없이 소형분생포자(小型分生胞子)는 0에서 -20bars까지는 점점(漸漸) 형성(形成)이 증가(增加)하다가 -20bars에서 가장 많이 형성(形成)되었으며 -80bars에서도 아주 적은수이지만 형성(形成)이 되었다. 대형분생포자(大型分生胞子)는 -1.4bars에서 포자형성(胞子形成)이 잘 되었고 water potential 떨어짐에 따라 -32bars에서 대형분생포자(大型分生胞子)를 형성(形成)하지 않고 소형분생포자(小型分生胞子)만 형성(形成)하였다. 포자발아(胞子發芽)는 -1.4bars에서 발아율(發芽率)이 좋았고 water potential이 떨어질수록 발아율(發芽率)도 떨어졌다.

  • PDF