요 배양검사에서 양성인 어린이의 임상적 분석

최두영,김재일,김동적 圓光大學校 醫科學硏究所 1997 圓光醫科學 Vol.13 No.1-2

A clinical analysis was done for the 110 pediatric patients with positive urine culture during Jun. 1992 to Dec. 1995 retrospectively. The patients who were hospitalized were classified group Ⅰ, under 29 days of age, and group Ⅱ, number of 29 days of age to 15 years old, respectively. The diagnostic criteria of urinary tract infection were first, the numbers of colonies of single organism isolated from clean urine collected by catheter was over 100,000/㎖. second, the numbers of colonies of single organism isolated from by supurapubic aspiration was over 1,000/㎖. third, two or more cultures yielding more than 100,000 colonies of a single identical organism from obtained by urine bag after aseptic preparation of genitalia. The results are summarized as follows : 1. The mean age of group Ⅰ was 9 days and 2.7 years in group Ⅱ. 2. Male to female ratio of group Ⅰ was 2.4 : 1 and 1.7 :1 in group Ⅱ. 3. The most common symptom was fever in both group Ⅰ(37%) and group Ⅱ(62%). 4. The pyuria(>5WBC/hpf) was detected in 21 cases(51%) of group Ⅰ and 32 cases(46%) of group Ⅱ. 5. The bacteriuria was detected in 22 cases(55%) of group Ⅰ and 25 cases(36%) in group Ⅱ. 6. The most commonly cultured bacterial species were E. coli in both group. 7. The most sensitive antibiotics for cultured E.coli was amikin.

First record of the sap beetle Phenolia picta invading Eastern honey bee (Apis cerana) (Hymenoptera, Apidae) colonies

Du Lin,Liu Wenbin,Chen Xiaoshun,Licao Jinge,Ding Guiling,Guo Zhanbao,Huang Jiaxing 한국응용곤충학회 2024 Journal of Asia-Pacific Entomology Vol.27 No.3

In Asia, the sap beetle Phenolia (Lasiodites) picta (Macleay) (Coleoptera, Nitidulidae) (hereafter P. picta) is endemic to the southeastern Palaearctic and northeastern Oriental regions. It is commonly found in orchards and plantations, where it feeds on ripe or rotten fruits. Here, P. picta was recorded for the first time to invade the hive of the Eastern honey bee (Apis cerana). Both DNA barcode and morphological data were used to identify the beetle, with the DNA barcoding comparison to the P. picta sequence in the BOLD library reaching 100% similarity. Additionally, the body sizes were measured, with the males averaging 7.87 ± 0.21 mm in length and the females averaging 8.27 ± 0.15 mm. The beetle’s body colour is primarily brownish with yellowish to pale orange spots on the elytra. P. picta invades the honey bee hive, feeds on honey and bee pupae, and tunnels through the comb, which causes the honey bees to abandon their hive. Such invasions could have severe impacts on honey bee colonies. This report provides essential information for beekeepers to use when identifying P. picta, which could be useful for preventing and controlling parasitic beetles.

Heterologous expression of two Physcomitrella patens group 3 late embryogenesis abundant protein (LEA3) genes confers salinity tolerance in arabidopsis

Jing Du,Lei Wang,Xiaochen Zhang,Xuan Xiao,Fang Wang,Pingliang Lin,Fang Bao,Yong Hu,Yi-Kun He 한국식물학회 2016 Journal of Plant Biology Vol.59 No.2

Salinity stress is a major limiting factor in agriculture and adversely affecting the whole plant. As a halophyte, the moss Physcomitrella patens, has been suggested to be an ideal model plant to study salinity tolerance and adaption. Two abiotic stress-responsive Group 3 Late Embryogenesis Abundant protein genes had been identified in P. patens and named as PpLEA3-1 and PpLEA3-2, respectively. Functions of these two genes were analyzed by heterologous expressions in Arabidopsis, driven either by their native P. patens promoters or by the 35S CaMV constitutive promoter. Phenotype analysis revealed that pLEA3::LEA3, pLEA3::LEA3::GFP and 35S::LEA3::GFP transgenic lines had stronger salinity resistance than that in the wild type and empty-vector control. Further analysis showed that the contents of proline and soluble sugar were increased and the malondialdehyde (MDA) were repressed in these transgenic plants after exposure to salinity stress. Our observations indicate that these two Group 3 PpLEA genes played a role in the adaption to salinity stress.

A weight optimization method for chemical safety evaluation indicators based on the bipartite graph and random walk

Du Junwei,Jing Guanghui,Hu Qiang 한국CDE학회 2022 Journal of computational design and engineering Vol.9 No.4

In the chemical safety evaluation system, the optimization of indicator weights needs to take both experts’ evaluations and the feedback on accident influences into account. Thus, this paper proposes a comprehensive weighting method based on the association bipartite graph (ABG). The accident influences and correlation intensity between the accident and the evaluation indicators are calculated on the ABG. A random walk algorithm, which integrates the objective influences of the accidents and the subjective evaluations of experts, is designed to realize the weight optimization. Experiments prove the effectiveness of the proposed method from the perspectives of weight ranking and fitting degree.

Associations of Single Nucleotide Polymorphisms in miR-146a, miR-196a, miR-149 and miR-499 with Colorectal Cancer Susceptibility

Du, Wei,Ma, Xue-Lei,Zhao, Chong,Liu, Tao,Du, Yu-Liang,Kong, Wei-Qi,Wei, Ben-Ling,Yu, Jia-Yun,Li, Yan-Yan,Huang, Jing-Wen,Li, Zi-Kang,Liu, Lei Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.2

Background: MicroRNAs (miRNAs) are an abundant class of endogenous small non-coding RNAs of 20-25 nucleotides in length that function as negative gene regulators. MiRNAs play roles in most biological processes, as well as diverse human diseases including cancer. Recently, many studies investigated the association between SNPs in miR-146a rs2910164, miR-196a2 rs11614913, miR-149 rs229283, miR-499 rs3746444 and colorectal cancer (CRC), which results have been inconclusive. Methodology/Principal Findings: PubMed, EMBASE, CNKI databases were searched with the last search updated on November 5, 2013. For miR-196a2 rs11614913, a significantly decreased risk of CRC development was observed under three genetic models (dominant model: OR = 0.848, 95%CI: 0.735-0.979, P = 0.025; recessive model: OR = 0.838, 95%CI: 0.721-0.974, P = 0.021; homozygous model: OR = 0.754, 95%CI: 0.627-0.907, P = 0.003). In the subgroup analyses, miR-$196a2^*T$ variant was associated with a significantly decreased susceptibility of CRC (allele model: OR = 0.839, 95%CI: 0.749-0.940, P = 0.000; dominant model: OR = 0.770, 95%CI: 0.653-0.980, P = 0.002; recessive model: OR = 0.802, 95%CI: 0.685-0.939, P = 0.006; homozygous model: OR = 0.695, 95%CI: 0.570-0.847, P = 0.000). As for miR-149 rs2292832, the two genetic models (recessive model: OR = 1.199, 95% CI 1.028-1.398, P = 0.021; heterozygous model: OR = 1.226, 95% CI 1.039-1.447, P = 0.013) demonstrated increased susceptibility to CRC. On subgroup analysis, significantly increased susceptibility of CRC was found in the genetic models (recessive model: OR = 1.180, 95% CI 1.008-1.382, P = 0.040; heterozygous model: OR = 1.202, 95% CI 1.013-1.425, P = 0.013) in the Asian group. Conclusions: These findings supported that the miR-196a2 rs11614913 and miR-149 rs2292832 polymorphisms may contribute to susceptibility to CRC.

EIGENVALUE INEQUALITIES OF THE SCHRÖDINGER-TYPE OPERATOR ON BOUNDED DOMAINS IN STRICTLY PSEUDOCONVEX CR MANIFOLDS

Du, Feng,Li, Yanli,Mao, Jing Korean Mathematical Society 2015 대한수학회보 Vol.52 No.1

In this paper, we study the eigenvalue problem of Schr$\ddot{o}$dinger-type operator on bounded domains in strictly pseudoconvex CR manifolds and obtain some universal inequalities for lower order eigenvalues. Moreover, we will give some generalized Reilly-type inequalities of the first nonzero eigenvalue of the sub-Laplacian on a compact strictly pseudoconvex CR manifold without boundary.

The Investigation of Cell Culture Conditions to Maintain Chicken Embryonic Stem Cells as Totipotent Cells

Du, Lixin,An, Jing Asian Australasian Association of Animal Productio 2003 Animal Bioscience Vol.16 No.8

The ES cell can provide a useful system for studying differentiation and development in vitro and a powerful tool for producing transgenic animalds. To investigate the culture condition of chicken embryonic stem (CES) cells which can retain their multipotentiality or totipotency, three kinds of feeder layer cells, SNL cells, primary mice embryonic fibroblasts (PMEF) cells and primary chicken embryonic fibroblasts (PCEF) cells, were used as the feeder cells in media of DMEM supplemented with leukemia inhibitory factor (LIF), basic fibroblast growth factor (bFGF) and stem cell factor (SCF) for co-culture with blastoderm cells from stage X embryos of chicken. The alkaline phosphatase (AKP) test, differentiation experiment in vitro and chimeric chicken production were carried out. The results showed that culture on feeder layer of PMEF yielded high quality CES cell colonies. The typical CES cells clone shape revealed as follows: nested aggregation (clone) with clear edge and round surface as well as close arrangement within the clone. Strong alkaline phosphatase (AKP) reactive cells were observed in the fourth passage cells. On the other hand, the fourth passage CES cells could differentiate into various cells in the absence of feeder layer cells and LIF in vitro. The third and fourth passage cells were injected into the subgerminal cavity of recipient embryos at stage X. Of 269 Hailan embryos injected with CES cells of Shouguang Chickens, 8.2% (22/269) survived to hatching, 5 feather chimeras had been produced. This suggests that an effective culture system established in this study can promote the growth of CES cells and maintain them in the state of undifferentiated and development, which lays a solid foundation for the application of CES cells and may provide an alternative tool for genetic modification of chickens.

A PRODUCT FORMULA FOR LOCALIZATION OPERATORS

Du, Jing-De,Wong, M.M. Korean Mathematical Society 2000 대한수학회보 Vol.37 No.1

The product of two localization operators with symbols F and G in some subspace of $L^2(C^n)$ is shown to be a localization operator with symbol in $L^2(C^n)$ and a formula for the symbol of the product in terms of F and G is given.

Chalcones from the Flowers of Rosa Rugosa and Their Anti-tobacco Mosaic Virus Activities

Du, Gang,Han, Jing-Mei,Kong, Wei-Song,Zhao, Wei,Yang, Hai-Ying,Yang, Guang-Yu,Gao, Xue-Mei,Hu, Qiu-Fen Korean Chemical Society 2013 Bulletin of the Korean Chemical Society Vol.34 No.4

Effect of a Multi-stage Processing Method on the Composite Properties of a Stainless-Steel Surface

Jing Li,Jianan Cao,Lida Pan,Feng Du,Weibing Wang,Chengyu Xu 대한금속·재료학회 2022 METALS AND MATERIALS International Vol.28 No.4

In this study, a multi-stage sandblasting and acid-etching processing method is used to prepare a 304 stainless-steel surfacewith a loose structure that has the composite properties of superhydrophobicity, low adhesion, anti-icing ability, self-cleaningbehavior and corrosion resistance. The surface morphology and chemical constituents of this structure are characterizedby scanning electron microscopy and X-ray diffraction, respectively. The results show that the micro-scale roughness anddifferent degrees of porosity in this structure play a key role in its superhydrophobicity.The anti-icing properties and corrosionresistance are characterized by contact-angle measurements and electrochemical workstation analyses, respectively. The results show that superhydrophobicity has positive effects on surface self-cleaning, anti-icing properties and corrosionresistance of 304 stainless-steel.