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      • 미국흰불나방의 變態에 따른 蛋白質의 Electrophoretic Pattern

        申炳湜 건국대학교 1984 論文集 Vol.19 No.1

        The concentration and patterns of whole body protein in the fall webworm, Hyphantria cunea Drury during metamorphosis were determined by polyacrylamide gel electrophoresis and spectrophotometric method, respectively. 1. A number of 16 protein band was separated through the whole stages. 2. At the final instar larva protein band was reached the greatest number and color density, but protein band's number and color density at 10day-old pupa was the lowest among all stage. Also protein absorbency was similar to above result. 3. Particulary many protein bands appeared and protein absorbancy was 0.34% at 6 day-old pupa during the pupal stage. 4. In conclusion, pattern and concentration of protein were changed in accordance with the morphological changes which in histolysis of larval organs and histogenesis of adult organs. It was related to energy transformation in according to morphological formation during metamorphosis.

      • KCI등재

        다구치법에 의한 고 규소 내산주철의 용해주조공정 최적화

        신제식,이상목,문병문,김정철,한동운,백승한 대한금속재료학회 2005 대한금속·재료학회지 Vol.43 No.2

        In this study, Taguchi method, one of the design tools of experiments, was applied to optimize casting process parameters of the high silicon corrosion-resistant iron. Three casting process parameters such as melting temperature, rare earth metal (mischmetal) addition, and pouring temperature were chosen. Using SN (signal-to-noise) ratio calculated from ultimate tensile strength of each experimental casting run, the relationship between the casting parameters and mechanical properties was statistically evaluated. The casting condition of a melting temperature of 1,650℃, 0.2% rare earth metal addition, and a pouring temperature of 1,350℃ led to an excellent ultimate tensile strength above 11 kgf/mm², which is beyond the industrial criterion. The effects of the casting parameters on mechanical properties and corrosion resistance were further confirmed by combined analysis of fractography, hydrogen content determination, microscopic test, and acid resistance test. (Received August 23, 2004)

      • 미국바퀴의 탈피시간에 따른 핵산 및 단백질의 변화에 관한 연구

        신병식 國立 昌原大學校 基礎科學硏究所 1993 基礎科學硏究所論文集 Vol.5 No.-

        미국바퀴의 탈피 후 시간에 따른 핵산, 단백질 및 RNA/DNA비율의 변화를 Dische법과 Schneider법으로 측정하였다. DNA량은 탈피 후 4시간까지 감소하다가 8시간까지 증가하며 다시 감소한다. 단백질과 RNA량은 탈피 후 2시간까지 감소하다가 8시간까지 증가하며 다시 감소한다. RNA/DNA비율은 4시간째 최고치를 나타내며 12시간째 최소치를 나타낸다. 탈피 후 DNA량(74.1-98.7㎍/g)은 RNA량(823.7-1107㎍/g)에 비해 적게 나타났다. 단백질과 핵산은 탈피 후 8시간 때 최대함량을 나타냈다. 이러한 사실들은 단백질과 핵산이 탈피 후 조직 신생기동안에 합성되어 진다는 것을 의미한다. The contents of nucleic acid and protein and the ratio of RNA/DNA according to times after moulting American cockroach, periplaneta americana L. were measured by Dische and Schneider methods. DNA content decreased until 4 hours after moulting increased until 8 hours and then decreased. Protein and RNA content decreased until 2 hours after moulting increased until 8 hours and then decrease. The content of DNA (74.1-98.7㎍/g) were measured less than the RNA content (823.7-1107.0㎍/g) The content of Nucleic acid and protein was shown highest at 8 hours after moulting. The result suggest that nucleic acid and protein were synthesized during histogenesis after moulting.

      • 동시성 공유정신병 : 일란성 쌍생아 자매의 역할반전 Case Formulation of Role Reversal

        신화식,유희정,김헌수,김현실,민병근 울산대학교 의과대학 1995 울산의대학술지 Vol.4 No.1

        The twin sisters case of folie simultanee is reported here in this paper. A case of folie simultanee is described as two or more people becoming psychotic simultaneously and sharing the same delusion. The results of psychodynamic approach for this case are as follows. 1. There are a variety of conflicting hypotheses on the orgin of the disorder, ranging from the etiological explanation of organic factor to various psychodynamic approach. In this case, there is no evidence of hereditary factor on the laboratory findings and family history. Therefore the authors stressed that the psychodynamic formulation of the disorder is on the importance .of the etiological rol. It seem significant to describe that the etiology is multidimensional and includes factors such as character structure formation in processing of object relations, the emotional relationship between the partners, socio-environmental conditions and hereditary predisposition. 2. There are two issues in folie simultanee. The one is related to diagnosis. It is consider to distinguish the inductor from the recipient. The other is subject to treatment. It is important to determine whether separate the inductor and recipient by admitting the inductor for a psychiatric center or not. Furthermore, the inductor and recipient's weak ego state should be recognized in planning various psychiatric treatments. 3. It could be found in the role reversal phenomenon between the inductor and recipient during long-term course.

      • 월동에 따른 밤바구미의 아미노산및 탄수화물에 관한 연구

        신병식 昌原大學校 基礎科學硏究所 1996 基礎科學硏究所論文集 Vol.8 No.-

        월동기에 따른 밤바구미의 아미노산 및 탄수화물의 농도를 측정한 결과는 다음과 같다. 전 시기에 걸쳐 아미노산은 총18종이 동정되었으며 최저함량은 월동중 유충에서 최고함량은 용시기에 나타났으며 전시기를 통해 glutamic acid가 높은 함량을 유지하였으며, 또한, 특이한 생활환의 결과로서 proline, histidine, threonine등의 내동성 아미노산이 월동후 시기에 높게 나타났다. Trehalose의 최고 함량은 월동후기에서 나타났고, 내동성 물질인 glycerol의 함량은 낮게 나타났다. 이러한 사실들로 trehalose가 내동성 당류로 여겨진다. The concentrations of amino acids and carbohydrates were measured in haemolymph of the chestnut weevil, Curculio dentipes(Roelofs) according to overwintering. A total of 18 amino acids were identified during all stages. The maximum content was found at the pupal stage reached the least content at wintering larva. Through all stages, glutamaic acid showed high concentration. Especially according to typical life cycle, high level of such freezetolerant amino acids as proline, histidine and threonine were shown at overwintering larva. The highest amount of trehalose was found in carbohydrates, The maximum content of trehalose presented at overwintering larva and glycerol as freezetolerant sugar was low level at same time. These result suggested that trehalose was freezetolerant sugar.

      • 경피적 담낭루 설치술의 안전성과 유용성 : 해부학적 접근경로 및 시술방법을 중심으로 Evaluation of Complication with Regard to the Access Route and Technique

        신경숙,조준식,신병석 충남대학교 의학연구소 2003 충남의대잡지 Vol.30 No.2

        Our purpose was to evaluate the safety and feasibility of percutaneous cholecystostomy with regard to access route(transperitoneal vs transhepatic) and technique in patients of acute cholecystitis. In 139 consecutive patients(80 male, 59 female mean age; 67years) with acute cholecystits, medical records about percutaneous cholecystostomy (approach route, technique, used device and complication) were reviewed, retrospectively. In all patients, the procedure were performed under ultrasound guidance for GB puncture and fluoroscopy control for catheter manipulation. In 136 of 139 patients, percutaneous cholecystostomy was technically successful (98%). In three cases, successful second trial after initial failure was performed. The procedure was performed by meansof a transhepatic(n=63) or a transperitoneal(n=76) access route. During procedure, seldinger technique was performed(transhepatic approach, n=63, transperitoneal approach, n=62) in 125 patients, while in the remaining 14 patients the procedure were performed using troca technique with transperitoneal approach. Chiba needle(20G, MDtech, Denmark, n=22), JELCO needle(16G, Johnson & Johnson, USA, n= 67), Secalon catehter(16G, Ohmeda, UK, n=36) were used for initial puncture of GB. Only minor complications such as abdominal pain(n=16), hemorrhage(n=2), referred pain(n=4) occurred in 21cases(15%). Abdominal pain is more frequent in transhepatic approach(18%) than in transperitoneal approach(7%), but not statistically significant(p=0.061). Overall complication rate is lower in transperitoneal approach(8B) than in transhepatic approach(24%)(p=0.016). According to puncture needle, there is no significant difference in complication rate between Chiba needle(18%) and 16G needle(Jelco needle and Secalon catheter, 16%). In Conclusion, percutaneous cholecystostomy has proved to be safe and effective treatment for patients with acute cholecystitis.

      • 미국바퀴(Periplaneta americana L.)의 내한성에 관한 연구 (Ⅰ)

        신병식,안기흥,이충언 國立 昌原大學校 基礎科學硏究所 1993 基礎科學硏究所論文集 Vol.4 No.-

        Concentration change of carbohydrates were measured in american cockroach, periplaneta americana L.according to temperature condition. Trehalose contents were increased as temperature was decrease, the highest content was shown 5.9mg/g at 5℃. Whereas glycogen contents were decreased as temperature increase. Especially, glycogen conten was shown dramatically decline between 15℃ and 10℃. Glycerol was not found concentration change on the temperature condition. This result suggest that trehalose have a cryoprotectant role in periplaneta americana L. and began to physiological metabolism of freezing tolerante at blow 15℃.

      • SCIESCOPUSKCI등재

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