• 제목/요약/키워드: iodine No

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간흡충에 대한 살충성 물질에 관한 연구 IV. 이스라엘잉어(향어) 점액으로부터 살충성 물질 분획 (The Wormicidal Substance of Fresh Water Fishes on Clonorchis IV. Preliminary research on the wormicidal substance from mucus of Cyprinus carpio nudes)

  • 이재구;김평길
    • Parasites, Hosts and Diseases
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    • 제21권1호
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    • pp.21-26
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    • 1983
  • As a series of studios on the suitability as a second intermediate host of Clcnorchis sinensis, the wormicidal effects of mucus from epidermis of Cyprinus carpio nudus were observed. The results obtained were sumlnarized as follows : On the silica gel thin layer chromatography with the greenisll yellow supernatant in acetone: benzene110:90 as carrier, seven spots were observed in iodine chamber. The spot of Rf. 0.225 value among them disclosed the strongest wormicidal effect on the cercaria, the encysted metacercaria, and the adult of C. sinensis. hfeanwhile, no seasonal variations were found in Rf. values and effect of the wormicidal fractions. The wormicidal materials in epidermal mucus of C. carpio nudes and Carassius carassius were compared in their effect, and the former was Inore effective killing substance than the latter. It seemed that C. carpio nodus could not be proper intermediate host of C. sinensis according to results of the present study, in addition to our previous observation results.

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Radish $\beta$-amylase에 관한 연구 (Studies on $\beta$-Amylase of Radish)

  • 우원식
    • 약학회지
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    • 제6권2호
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    • pp.18-22
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    • 1962
  • Purified preparation of .betha.-amylase is obtained from radish root by the means of fractional precipitation with ammonium sulfate. Purified preparation saccharifies the starch, .betha.-maltose being formed. Dextrinization in the true sense does not take place. Hydrolysis ceases when approximately 50% of the theoretical yield of maltose is obtained and there remains a substance (to be .betha.-limit dextrin) which gives a blue-violet with iodine, no glucose being formed. Stability of preparation is optimal at pH 4-9 and more completely inactivated at 65.deg. in fifteen minutes. .betha.-Amylase of radish exhibits optimal activity at and near pH 5.0, which varied depending upon the buffer. Calcium and chloride ions do not effect the activities of enzyme. The results of experiments with oxidizing, alkylating and mercaptide-forming reagents which have been reported to be specific for sulfhydryl groups confirm that free sulfhydryl groups are essential to the activity of .betha.-amylase from radish.

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Correlations for Predicting Viscosity of Vegetable Oils and Its Derivatives for Compression Ignition Engines

  • No, Soo-Young
    • 한국분무공학회지
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    • 제14권3호
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    • pp.122-130
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    • 2009
  • Vegetable oil and its derivatives as an alternative diesel fuel have become more attractive recently because of its environmental benefits and the fact that they are made from renewable resources. Viscosity is the most significant property to affect the utilization of vegetable oil and its derivatives in the compression ignition engines. This paper presents the existing correlations for predicting the viscosity of vegetable oil and its derivatives for compression ignition engines. According to the parameter considered in the correlations, the empirical correlations can be divided into six groups: correlations as a function of temperature, of proportion, of composition, of temperature and composition, of temperature and proportion, and of fuel properties. Out of physical properties of fuel, there exist in the literature several parameters for giving the influence on kinematic viscosity such as density, specific gravity, the ratio of iodine value over the saponification value, higher heating value, flash point and pressure. The study for the verification of applicability of existing correlations to non-edible vegetable oil and its derivatives is required.

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살구씨의 화학적 조성에 관한 연구 (A Studies on the Chemical Composition of Apricot Seed)

  • 이성민;임효진
    • 한국식품영양학회지
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    • 제5권1호
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    • pp.1-6
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    • 1992
  • For the effective utilization of apricot seed resources of food protein and lipid, the general composition, amino acid composition and chemical characteristics were analysed. The skinned and non-skinned apricot seed contained 53.9% and 48.0% of crude lipid, 24.7% and 26.8% of crude protein, respectively. There were no significant difference in the amino acid composition among skinned and non-skinned apricot seed, The major amino acids were glutamic acid, aspartic acid, alanine, tyrosine and threonine, holding 14.6 to 16.9%, 12.4 to 13.7%, 9.2 to 12.1%, 7.2 to 7.5% and 7.0 to 7.2% of total amino acid content, respectively. The sum of these ammo acids occupied about 50% to total amino acids. While the quantities of methionine, histidine, and Lysine were poor content. The essential amino acids occupied about 30% to total amino acids. The acid, iodine and saponification value of apricot seed oil were 0.7 to 7.1, 80.8 to 107.5 and 182.7 to 208.4, respectively. These values were significant difference in skinned and non-skinned apricot seed.

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Viologen-TCNQ(2:2) LB막의 전기 및 자기적 특성에 관한 연구 (A study on the electrical and magnetic properties of Viologen-TCNQ(2:2) LB films)

  • 이용수;신동명;김태완;강도열
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 1996년도 추계학술대회 논문집
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    • pp.195-198
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    • 1996
  • In conducting systems based on LB films, TCNQ derivatives have been extensively studied as electron acceptor molecules. We have investigated the optical, electrical, and magnetic properties of Viologen-(TCNQ ̄)$_2$LB films. In UV/visible absorption measurements, we have observed TCNQ ̄ peak at 380 nm and dimer peak at 620 nm. The electron spin resonance measurements infer that Viologen-(TCNQ ̄)$_2$LB film exhibits anisotropic properly. In other words, the LB film shows angular dependence. Iodine doping affects the degree of charge transfer and the conductivity of the films. The UV/visible absorption spectra of the LB film doped with I$_2$show peaks at near 400~430 nm and there is no dimer absorption peak. The in-plane electrical conductivity of the undoped film is approximately 4.2$\times$10$^{-6}$ S/cm.

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황색고구마 퓨레의 품질과 Carotenoid색소 (Quality Properties and Carotenoid Pigments of Yellow Sweet Potato Puree)

  • 정순택;임종환;강성국
    • 한국식품영양과학회지
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    • 제27권4호
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    • pp.596-602
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    • 1998
  • Two kinds of sweet potato puree were prepared with Benihayato cultivar of yellow sweet potato with or without $\alpha$-amylase enzyme treatment. Chemical and rheological properties of enzyme-treated puree were different from those of control puree. Reducing sugar content and iodine value increased by $\alpha$-amylase enzyme treatment, while alcohol insoluble solids and viscosity decreased by enzyme treatment. However, the changes of carotenoid content were not significantly different. Hunter-b-values(yellowness) were 27.19 and 23.54 for no enzyme-treated puree(NTP) and enzyme-treated puree(ETP), respectively. Hunter-a values(redness) were 2.24 and 6.05 for NTP abd ETP, respectively. Content of total carotenoid of canned puree heated at 13$0^{\circ}C$ for 30 min decreased by 59 percents.

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예후가 좋지 않은 갑상선암에 대한 최신 치료 방침 (Recent Improvements in the Treatment of High-Risk Thyroid Cancer)

  • 이은경
    • 대한두경부종양학회지
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    • 제38권1호
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    • pp.1-9
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    • 2022
  • Thyroid cancer is one of the slow-growing tumors with excellent oncological outcomes. However, a small set of patients with unexpectedly severe outcomes are usually ignored. Anaplastic thyroid cancer (ATC) remains one of the most aggressive and lethal solid tumors. Recently, dabrafenib and trametinib combination therapy or neoadjuvant BRAF induction therapy has shown promising results. In addition, a combination of targeted drugs, immunotherapy, surgery, and radiation therapy can improve overall survival in ATC patients. Another disease for which there is no breakthrough treatment is radioactive iodine-refractory differentiated thyroid cancer (DTC). To date, multikinase inhibitors (sorafenib, lenvatinib) targeting the growth factor signaling pathway have been developed and approved as anticancer agents for patients with advanced DTC. This review includes results from multikinase inhibitors to the emergence of new target molecules, including rearrangements during transformation (RET) and tropomyosin receptor kinase (TRK).

학교급식에서의 닭튀김 방법에 따른 튀김유와 튀김닭의 이화학적 특성 (Effect of Frying Methods of Chickens on the Physicochemical Properties of Frying Oil and Fried Chickens in the School Foodservice)

  • 노경아;김나영;장명숙
    • 대한영양사협회학술지
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    • 제4권1호
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    • pp.99-108
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    • 1998
  • The purpose of this study was to investigate the effect of frying methods of chickens ; deep-fat frying with raw chickens(A), with pre-cooked chickens(B) on the physicochemical properties of frying oil and fried chickens in the school foodservice. Acid, peroxide and TBA value of frying oil were significantly increased by increasing the number of frying times and those of method A were higher than those of method B. On the contrary, Iodine value was decreased significantly with increasing the number of frying times but there is no significant difference between method A and B. In fatty acids, the content of saturated fatty acid increased while that of unsaturated fatty acid decreased as the frying times increased. Also viscosity, yellowness and redness increased significantly by increasing the number of frying times. The content of vitamin $B_1 $, of fried chicken by the frying methods was not significantly different, but vitamin $B_2 $the method A was higher than by the method B. Ca, P, Na, K and Fe contents of fried chickens by the method A were higher than those by the method B.

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갑상샘 유두암과 혼재하여 발견된 편평세포암 1예 (A Case of Mixed Papillary Thyroid Tumor and Squamous-Cell Carcinoma)

  • 김호수;정태식;정정화;김수경;이상민;정순일;함종렬
    • Journal of Yeungnam Medical Science
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    • 제28권2호
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    • pp.206-210
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    • 2011
  • The occurrence of a mixed tumor containing papillary thyroid carcinoma (PTC) and primary squamous-cell carcinoma (SCC) is rare because there is no squamous epithelium in the thyroid gland. Reported herein is a 30-year-old female with mixed PTC and primary sec of the thyroid presented as thyroid incidentaloma. Fine-needle aspiration biopsy of the thyroid nodule revealed the presence of malignant thyroid cells. The histopathological examination following total thyroidectomy yielded two mixed, morphologically distinct histotypes that included PTC and sec. After total thyroidectomy, the patient underwent radioactive iodine therapy. No recurrence or metastasis occurred during the 20-month follow-up period after the operation.

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치수강내(齒髓腔內)에 있어서 조영제(造影劑)의 이행(移行)에 관(關)한 연구(硏究) (A STUDY ON TRANSFERENCE OF A CONTRAST MEDIA IN PULPAL CHAMBER)

  • 김영해
    • Restorative Dentistry and Endodontics
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    • 제8권1호
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    • pp.133-137
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    • 1982
  • Radiography is one of the important tool adopted in daily dental practice and medical diagnosis. To visualize soft tissuechange various contrast media has Been introduced. Any cavity or space can be easily determined by increasing the X-ray absorption of the cavity using the radiopaque contrast media which widely employed in medical radiography to show much of the digestive, cardiovascular, pulmonary, and renal system. The essential part of any radiopaque medium is a heavy element that can absoarb most of the X-ray beam. The element must be noninjurious and easily eliminated. Both aqueous and oil suspensions of iodine containing compounds' are available to the dental profession, for example Lipiodol and Dionosil. The study was designed to determine toxic effect of Lipiodol to the vital pulp and to confirm visualization ioprovement in pulp canal. 1. Thin mixture of Calcium hydroxide and Lipiodol was applied to 19 deep vital cavities for 24 hours. Only one case complained slight pain for short time. 2. Cotton pellet over-saturated in Lipiodol was inserted in coronal chamber of which 6 were non vital and 5 were vital. The transference of Lipiodol was not noticed in every case after 24 hours. 5 cases with vital pulp tissue in the canals showed no clinical symptome. 3. Extracted 20 teeth were routinely prepared for endodontic treatment and applied Lipiodol in conjunction with cotton fiber as deep as midportion of the roots. After 24, hours the medicament reached to nearly the end of apex, but there were no evidence of penetration in dentine layer and migrate into ramified canal.

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