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        검색결과 47

        22.
        2011.10 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The purpose of this study is to see the effect of functional electrical stimulation on forced vital capacity and alternating motion rate in children with spastic cerebral palsy. This study divided 20 children with spastic cerebral palsy into two groups; functional electrical stimulation treatment group and control group. Functional electrical stimulation treatment group had 20min per day treatment three times a week for four weeks and the control group did not have any treatment. Before and after intervention, this study measured forced vital capacity and alternate motion rate(/peo/,/teo/) for all children. Forced vital capacity showed statistically significant increase for the group with functional electrical stimulation(p<.05) while the control group did not show any significant increase(p>.05). Alternate motion rate showed statistically significant increase for the group with functional electrical stimulation(p<.05) while the control group did not show any significant increase(p>.05). This result shows that functional electrical stimulation affected the ability of the children with spastic cerebral palsy who have decreased breathing and phonation capability.
        4,000원
        24.
        2009.10 구독 인증기관·개인회원 무료
        Pine wood nematode, Bursaphelenchus xylophilus, is a causative organism to induce pine wilt disease in many varieties of pine trees. Until 2006, Monochamus alternatus had been known as the only insect vector of pine wood nematode in Korea which targeted on Pinus densiflora (Japanese red pine) and P. thunbergii (Japanese black pine). However, pine wilt disease was also reported from Korean pine tree (Pinus koraiensis) in 2006 and we found another insect vector, M. saltuarius, was involved to transmit pine wood nematode. Both Monochamus species were confirmed to transfer pine wood nematode to their hosts but, there is no detail information about other transmitted nematode. Especially Bursaphelenchus mucronatus is common species transmitted by Monochamus species which is morphologically closed to B. xylophilus. Moreover B. mucronatus have two genotypes; one is East Asian type and the other is European type. Both genotypes of B. mucronatus were found in Korea but, the host and vector information related to the genotypes of B. mucronatus was not clear. Monochamus saltuarius was collected from three different geographical locations and nematodes were extracted and identified. For the identification of the juveniles, nematode DNA was extracted and ITS-RFLP analysis was done by PCR and gel electrophoresis. The selected enzymes were Hinf I, Alu I, Msp I, Hae III, Rsa I. Most of Bursaphelenchus species carried by M. saltuarius, which collected from pine wilt disease-free area, was determined as European type of B. mucronatus. We will compare the nematode species and genotypes carried by M. alternatus and M. saltuarius. In addition the rate of nematode carrying insect and the average number of nematode per single insect will be counted and compared.
        25.
        2009.09 구독 인증기관 무료, 개인회원 유료
        Histologic and immunohistochemical features of canine skin tumours originated from epithelial stem cells were described. The tumors were trichogenic trichoblastoma, trichoepithelioma, sebaceous adenoma, hepatoid gland adenoma and epithelioma, and basal cell tumour. All of the tumors expressed both AE1/AE3 and cytokeratin 5/8, whereas cytokeratin 7 and vimentin not at all. Neuron-specific-enolase was strongly positive in follicular tumours, whereas slightly in basal cell tumour. Moreover, chromogranin A was expressed slightly only in trichogenic trichoblastoma and trichoepithelioma. Since the morphological similarities between these tumors, immunohistochemistry is one of useful tools for differential diagnosis. From the immunohistochemistry data, we conclude that cytokeratins, vimentin and NSE play a main role in the evaluation of canine skin tumours originated from epithelial skin stem cells histogenesis.
        4,000원
        26.
        2006.12 구독 인증기관 무료, 개인회원 유료
        Temperature signaling can be initiated by members of transient receptor potential (thermo-TRP) channels. Hot and cold substances applied to teeth usually elicit pain sensation. Since odontoblasts constitute a well-defined layer between the pulp and the mineralized dentin, being first to encounter thermal stimulation from oral cavity, they may be involved in sensory transduction process, in addition to their primary function as formation of dentin. We investigated whether thermo-TRP channels are expressed in a odontoblast cell line, MDPC-23. The expressions of thermo-TRP channels were examined using reverse transcription polymerase chain reaction (RT-PCR), immunohistochemistry, fluorometric calcium imaging. Analysis of RT-PCR revealed mRNA expression of TRPV1, TRPV2, TRPV4 and TRPM8, but no TRPV3, TRPA1. Immunohistochemical approach failed to detect TRPV1 expression. Whereas the application of 4-phorbol-12,13-didecanoate(10 μM, a TRPV4 agonist), menthol(1 mM, a TRPM8 agonist) and icilin(10 μM, a TRPM8 agonist) produced the enhancement of intracellular calcium concentration, capsaicin(1 μM, a TRPV1 agonist) did not. Our results suggest that subfamily of thermo-TRP channels expressed in odontoblasts may serve as thermal or mechanical transducer in teeth.
        4,000원
        27.
        2006.03 구독 인증기관 무료, 개인회원 유료
        This study was undertaken to develop PCR primers for the identification and detection of Streptococcus anginosus using species-specific forward and reverse primers. These primers targeted the variable regions of the 16S ribosomal RNA coding gene(rDNA). The primer specificity was tested against 12 S. anginosus strains and 6 different species(10 strains) of oral bacteria. The primer sensitivity was determined by testing serial dilutions of the purified genomic DNA of S. anginosus ATCC 33397T. The data showed that species-specific amplicons were obtained from all the S. anginosus strains tested, but not in the six other species. The PCR could detect as little as 0.4pg of the chromosomal DNA from S. anginosus. This suggests that the PCR primers are highly sensitive and applicable to the detection and identification of S. anginosus.
        3,000원
        28.
        2006.02 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Immuno-MemBlot is a technique for detecting, analyzing, and identifying proteins, similar to the Western blot technique but differing in that protein samples are not separated electrophoretically but are spotted through circular or slot templates directly onto the membrane. Recently we developed a new Immuno-MemBlot (IMB) method applying immunoreactions and coloring procedures directly in the wells of MemBlot apparatus, which were connected by canals to perform drainage for reagent application and buffer irrigation. This IMB method was designed to get theimmunoblot results more rapidly and clearly than the previous immunoblot ones. This study is aimed to evaluate the analytical accuracy of IMB using different biological assay. In the sensitivity test of IMB the monoclonal antibody can clearly detect the 30 ng (about 12 pM) of Mucocidin peptide (35 mer), and is also available to detect at least 10 ng (about 4 pM) of Mucocidin peptide (35 mer). The IMB was effective in the quantitative analysis of methothrexate (MTX) assay for cellular apoptosis. And more, this IMB is useful to screen large number of specific samples with ease and accuracy in a short time. In the screenings for the presence of Mucocidin in saliva the quantitative comparison is conspicuous among 48 persons depend on the different conditions ofgender, drinking and smoking habits, and oral diseases. Therefore, it is presumed that, even though the target proteins were partly degraded, a specific epitope can be detected if a monoclonal antibody was still reactive. Conclusively, these data suggest that the IMB can be useful in the primary qualitativeand quantitative analysis of proteins in various fluids, i.e., blood, saliva, tear, urine, etc.
        4,200원
        29.
        2004.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The fragile X mental retardation (FMR) syndrome is the largest source of inherited mental retardation. The syndrome is usually caused by the transcriptional silencing of fragile X mental retardation gene (FMR-1). An 18 years old male wascompla띠ing of multiple toαh missing and abnormal facial profùe, of which signs were matemally dominant in his family. In the C)π。gene디c analysis the pa디ent and his parents did not show any discontinuity in the long arm end of X chromosome, but in the PCR produαs targeω19 the CGG repeat sequence in the 5' untranslated region of FMR gene both the patient'’ s and his mother' s gDNAs produced a normal and an extra bands, sized about 400 and 800 bps, respectively, while the his father' s gDNA produced only one normal band, sized about 400 bps. 까1US , we suppose that the pa디.ent has heterozygotic alleles of FMR gene inherited matemally, and that the patient s FMR gene was in a premutated state relevant to the dentofacial abnormalities.
        4,000원
        30.
        2003.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The primary growth center (MdPGC) of human fetal mandible was conspicuously distinguished in the soft X-ray view of fetal mandibles.1) As the peripheral adaptive growth of mandible advanced during the postnatal period, the MdPGC became overshadowed by condensed cortical bone. However, in the well-processed radiograms of adult mandible a condensed radiopaque image, measuring 0.5-1.0 cm in diameter, can be observed below the apex of first premolar. In this study we aimed to trace a sclerotic sequela of mandibular primary growth center during postnatal period. Panoramic radiograms of two hundreds adults and soft X-ray views of thirty dry mandible were analyzed by statistical methods. The adult MdPGC was clearly distinguishable from the mental foramen. The area of MdPGC was seldom changed in the older persons, even in the edentulous mandibles. Additionally, the benign lesions of odontogenic cysts and tumors hardly destroyed the original structure of MdPGC, while the malignant tumors of squamous cell carcinoma and metastatic cancer rapidly destroyed and resolved the radiopaque area of the MdPGC.
        4,000원
        31.
        1995.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        사용후핵연료 저장조는 지진하중에 대하여 운영기간중 자체의 구조적 건전성 및 저장된 사용후핵료의 안전성을 확보할 수 있어야 한다. 본 연구에서는 LRB 면진장치를 설치한 사용후핵연료 면진저장조의 지진시 거동특성을 파악하기 위하여 서로 다른 특성을 갖는 두종류의 지진에 대하여 지진해석을 하여 그 결과를 비면진 저장조에서의 응답과 비교하였다. 면진장치를 사용함으로써 지진시 상부구조로 전달되는 지진력과 응답을 크게 감소시켜 저장조와 저장된 사용후액연료의 안전성 확보에 유리한 것으로 나타났다.
        4,000원
        32.
        2016.10 서비스 종료(열람 제한)
        Background : Ganoderma lucidum is a non-toxic, medicinal mushroom, which is known to possess anti-inflammatory and immunomodulating activities. However, the effects and mechanism of action of Ganoderma lucidum on lipopolysaccharide (LPS) and interferon-gamma (IFN-γ)-induced nitric oxide (NO) production and its-related cytokine expression are not yet fully understood. This study aimed to evaluate the effect of Ganoderma lucidum on NO production and NO-mediated pro-inflammatory cytokine expression in LPS/IFN-γ-induced RAW 264.7 macrophage-like cells. Methods and Results : The results showed that Ganoderma lucidum inhibited inducible NO synthase (iNOS) expression of RAW 264.7 macrophage-like cells at non-cytotoxic concentrations probably through the reduction of reactive oxygen species (ROS) production. After pre-treatment of cells with non-toxic doses of Ganoderma lucidum; NO production was significantly decreased. Moreover, Ganoderma lucidum treatment suppressed LPS/IFN-γ -stimulated pro-inflammatory cytokine secretion, including interleukin-1β and interleukin-6, in a dose-dependent manner. Conclusion : Taken together, these results indicate that the anti-inflammatory activation of Ganoderma lucidum in LPS/IFN-γ-stimulated macrophages might be due to abrogation of NO-dependent cytokine release by impairment of iNOS expression via ROS generation.
        33.
        2012.12 KCI 등재 서비스 종료(열람 제한)
        Influences of different seeding dates on growth, seed yield, fatty acid composition and oil content were investigated in flax plants for two years. The results indicated that plant height in early seeding date was higher than that of delayed seeding dates during first season. Furthermore, seeding date also significantly affected the ripened seed rate and the rate increased with the delay in seeding date in first season. Seed yield in the first crop season was significantly higher than the second crop season. Palmitic acid showed variation in different seeding dates. Contrarily, stearic acid was stable and did not changed by different seeding dates. Linolenic acid was found in highest amount in all seeding dates consecutively in two cropping years. Highest oil content was recovered from the seeds of flax sown at 29 Apr. and May 9 in first and second cropping year respectively.
        35.
        2007.12 KCI 등재 서비스 종료(열람 제한)
        "Juan1" is a new japonica rice variety of mid-late maturing, tolerance to lodging and adaptable to direct seeding which was developed by the rice breeding team of National Institute of Crop Science, RDA, in 2005. This variety is derived from a cross between Ilpumbyeo, a variety of good-eating quality and high yield, and SR18392-HB683-104. The Juanl has heading date of August 19 at ordinary planting in the middle plain. It has semi-erect plant type with culm length of about 80cm and tolerance to lodging. This variety shows susceptible to blast, bacterial blight, virus diseases and brown planthopper. The milled rice kernels of Juanl are translucent with non-glutinous endosperm, clear in chalkiness and medium short grain. It has also low amylose content of 18.8%, low gelatinization temperature and good palatability. The average milled rice yield of this variety was 5.68 MT/ha at ordinary planting in local adaptability test for three years from 2003 to 2005. Juan! would be highly adaptable to middle plain and mid-eastern coastal region of Korea.
        36.
        2007.12 KCI 등재 서비스 종료(열람 제한)
        A new spray chrysanthemum cultivar, 'Plaisir D'Amour' was released by National Horticultural Research Institute (NHRI), Rural Development Administration (RDA), in 2006. The cross was made in 2003 between '01B1-355', a breeding line of NHRI and `01B1-440', a breeding line of NHRI. After evaluation for the characteristics including shading culture in summer and retarding culture in spring between 2004 and 2006, final selection was made. The natural flowering time of 'Plaisir D'Amour' is late October, but year-round flowering is possible by shading and illumination. It has single type flowers with mixed color by dark pink and white edged. It shows excellent flower setting and early blooming with multi-floret. The diameter of flower is 5.4 cm. The number of flowers per stem is 15.5 and number of petals per flower is 21.5. The days to flower under short day treatment is about 56 and its vase life is 21 days in autumn season.
        37.
        2007.12 KCI 등재 서비스 종료(열람 제한)
        A new spray chrysanthemum cultivar, 'Pink PangPang' was released by National Horticultural Research Institute (NHRI), Rural Development Administration (RDA), in 2006. The cross between 'Restone' and 'Lollipop' was made in 2003. After evaluation for the characteristics including shading culture in summer and retarding culture in spring between 2004 and 2006, final selection was made. The natural flowering time of "Pink PangPang" is late October, but year-round flowering is possible by shading and illumination. It has pompon type flowers with light pink petals and resistance to white rust. The diameter of flower is 4.3 cm. The number of flowers per stem is 13 and the days to flower under the short day treatment is about 44 in summer season.
        38.
        2006.08 KCI 등재 서비스 종료(열람 제한)
        A new cultivar ofDianthus caryophyUus "Dreambyul" was selected from the progenies ofa cross "Zenga" and "Euge-nia" in 1999 at the National Horticultural Research Institute, Rural Development Administration. It was fmally selected in 2002after the investig
        39.
        2006.08 KCI 등재 서비스 종료(열람 제한)
        A new cultivar of Dianthus caryophyHus "Orion" was selected from the progenies of a cross "Rossini" and "Tropicshort node of upper shoot. Optimum temperature for its growth are over 8"C at night and under 25"C at day in summer. The cul- tivar was applied
        40.
        2005.06 KCI 등재 서비스 종료(열람 제한)
        Rice and weed interference in the paddy field caused by resource competition and allelopathy. Evaluation method of active weed suppressive behavior of rice to weed was developed by eliminating light competition at soil condition. Twenty eight days old rice seedlings (6-7 leaf stage) which was grown at saturated, no drainage pot were clipped above 3~~4cm from the soil surface. Weeds seeded around clipped rice stem, named ratoon seeding screening method, showed varietal suppressive difference to Echinochloa crus-galli, Echinochloa crusgalli var. praticola and Monochoria vaginalis. Potential allelopathic rice varieties, Sathi, AC1423 and PI312777 showed better suppressive activity to weed seedling growth than Nonganbyeo and Keumobyeo. Weed suppression of one plant of rice cultivars could be evaluated by the cell size of 2.5~times2.5cm at rice clipping of seedling 29 days after rice seeding.
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