Ultrastructure structure of antennal sensilla of carabid beetle Carabus elysii Thomson, 1856 (Coleoptera: Carabidae)

Wen‐Bo Li,Naiyi Liu,Qin XU,Min Sun,Jie Fang,Shuyan Wang 한국곤충학회 2019 Entomological Research Vol.49 No.2

The sensilla type, number and distribution in male and female adults of Carabus elysii Thomson, 1856 (Coleoptera: Carabidae) were studied using scanning electron microscopy. The results showed that there are seven categories and 12 types of sensilla in C. elysii adults: three types of S.Ch, three types of S.T, two types of S.B and one each of B.B, S.Co, S.Ca and S.Cam. There is no difference between male and female in the types of sensilla. Apart from the significant difference in the number and distribution of S.B.2, S.Co and S.Ca between male dorsal and ventral surfaces, there are no significant differences between male and female antennae. In general, the number of sensilla in females is larger than that in males. The results provide a basic reference for future ultrastructure, electrophysiological, and comparative behavioral studies of Carabus species.

대만의 지능장애와 감각장애 특수학교 교장 전형 리더십에 대한 연구

蕭金土,高文民,卓美方,王金香 대구대학교 특수교육재활과학연구소 2007 再活科學硏究 Vol.25 No.1

최근 몇 년 회귀 주류와의 융합 교육 정책 하에 대만의 특수 교육 학교는 예전과 다른 큰 변화에 직면해 있다. 완전 융합 이념의 실시 또 심신장애학생을 주류교육으로 회귀해야 한다는 것을 제창함으로, 특수교육학교는 인원이 감소하게 됐다. 특수교육 학교는 신입생 모집이 부족한 상황에서 학교 교사들의 관점이 교장의 지도에 대해 보는 관점이 어떻게 다른가? 그에 대한 요구도 다른가? 본 연구는 두 인자 변의 수 분석이 대만 지능 장애와 감각 장애 종류의 특수 교육 학교 교장전형 리더십에 대한 연구이다. 실험 대상자는 8개 지능 장애종류 특수교육 학교와 5개 감각 장애종류 특수 교육 학교의 259명의 교사이고 그들이 특수교육학교 교장 리더에 대한 건의를 제출했다. In recent years, the domestic special education schools have faced with huge changes under the mainstream and inclusive education policies for the implementation of the full-inclusive and the mainstream education for the students with impairment. That causes the special education schools to reduce classes. Under this situation, what are the teachers?fdifferent views about the principal? What are their needs? The study was undertaken through two-way ANOVA to explore principals?ftransformational leadership between the schools for the mentally retarded and for the sensory impaired. 259 teachers were selected from 8 schools for the mentally retarded and 5 sensory impairment special education schools. Based upon the findings, the implications for practice were proposed.

Proteomic Analysis on Exosomes Derived from Patients’ Sera Infected with Echinococcus granulosus

Wen Wang,Xiaojing Zhou,Fang Cui,Chunli Shi,Yulan Wang,Yanfei Men,Wei Zhao,Jiaqing Zhao 대한기생충학ㆍ열대의학회 2019 The Korean Journal of Parasitology Vol.57 No.5

Cystic echinococcosis (CE), a zoonotic disease caused by Echinococcus granulosus at the larval stage, predominantly develops in the liver and lungs of intermediate hosts and eventually results in organ malfunction or even death. The interaction between E. granulosus and human body is incompletely understood. Exosomes are nanosized particles ubiquitously present in human body fluids. Exosomes carry biomolecules that facilitate communication between cells. To the best of our knowledge, the role of exosomes in patients with CE is not reported. Here, we isolated exosomes from the sera of patients with CE (CE-exo) and healthy donors and subjected them to liquid chromatography-tandem mass spectrometry analysis. Proteomic analysis identified 49 proteins specifically expressed in CE-exo, including 4 proteins of parasitic origin. The most valuable parasitic proteins included tubulin alpha-1C chain and histone H4. And 8 proteins were differentially regulated in CE-exo (fold change>1.5), as analyzed with bioinformatic methods such as annotation and functional enrichment analyses. These findings may improve our understanding about the interaction between E. granulosus and human body, and may contribute to the diagnosis and prevention of CE.

Apoptosis of Human Burkitt’s Lymphoma Cells Induced by 2-N,NDiethylaminocarbonyloxymethyl-1-diphenylmethyl-4-(3,4,5-trimethoxybenzoyl) piperazine Hydrochloride (PMS-1077)

Wen-di Wang,Xi-ming Xu,Ying Chen,Peng Jiang,Chang-zhi Dong,Qin Wang 대한약학회 2009 Archives of Pharmacal Research Vol.32 No.12

Piperazine is one of the heterocycles which are associated with diverse pharmacological activities. 2-N,N-Diethylaminocarbonyloxymethyl-1-diphenylmethyl-4-(3,4,5-trimethoxybenzoyl) piperazine hydrochloride (PMS-1077) is a trisubstituted piperazine which contains a trimethoxybenzene ring and a benzhydrylpiperazine fragment, both of which can induce cell proliferation regression by different mechanisms. We have therefore examined the effects of PMS-1077 on Human Burkitt’s lymphoma cells (Raji). The viability of Raji cells was determined by MTT assay and also assessed by trypan blue dye exclusion method. The results demonstrate that PMS-1077 can suppress the proliferation of Raji cells in a dose- and timedependent manner, while inhibit colony formation ability of Raji cells merely in a dose-dependent manner in vitro. Meanwhile, morphological changes were observed using fluorescence microscope. Flow cytometric analysis through PI stains showed that PMS-1077 blocked the growth of Raji cells in the G0/G1 period, and induced apoptosis of Raji cells after 48 h of incubation. Cell apoptosis induced by PMS-1077 was further confirmed by staining with Annexin-V FITC and PI. Preliminary study by molecular docking suggests that PMS-1077 may inhibit tubulin polymerization. More experiments are in progress in our laboratory to reveal the mode of action of PMS-1077 in the induction of apoptosis of Raji cells.

Hollow-structured Pd/TiO2 as a dual functional photocatalyst for methyl orange oxidation and selective reduction of nitrate into nitrogen

Wen-Min Wang,Shi-Jer Tseng,Yu-Shuan Huang,Qian-Yuan Wu,Wen-Long Wang,Jerry J. Wu 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.119 No.-

Nitrate pollution in wastewater has posed a threat to human health and the environment. Photocatalyticreduction is a promising technology to remove nitrate due to its high adaptability, low cost, and high efficiency. However, there is a great challenge to design photocatalyst with high nitrate reduction and highselectivity of nitrogen (N2) yield. In this study, a novel hollow-structured Pd/TiO2 (PHT1) photocatalyst issynthesized with large specific surface area (SBET) and pore volume, strong UV adsorption, high reductionpotential than nitrate to nitrite, high charge transfer rate, and low electron-hole recombination rate. PHT1 exhibits a superior photocatalytic activity on the removal of methyl orange and nitrate. In addition,PHT1 exhibits high N2 selectivity (>95 %). A lower pH can promote the reduction of nitrate and the selectivityof N2 by PHT1. Electrons (e-) and CO2– are the main active species for nitrate reduction with OH asauxiliary radicals. Three main pathways for nitrate reduction are proposed: i) the reaction with formicacid under acidic conditions; ii) the reduction by electrons and the loaded Pd of photocatalyst to captureelectrons to inhibit electron-hole recombination; iii) the reduction by CO2 – generated from formic acidoxidation by OH.

Characterization of Brain Microstructural Abnormalities in High Myopia Patients: A Preliminary Diffusion Kurtosis Imaging Study

Wang Huihui,Wen Hongwei,Li Jing,Chen Qian,Li Shanshan,Wang Yanling,Wang Zhenchang 대한영상의학회 2021 Korean Journal of Radiology Vol.22 No.7

Objective: To evaluate microstructural damage in high myopia (HM) patients using 3T diffusion kurtosis imaging (DKI). Materials and Methods: This prospective study included 30 HM patients and 33 age- and sex-matched healthy controls (HCs) with DKI. Kurtosis parameters including kurtosis fractional anisotropy (FA), mean kurtosis (MK), axial kurtosis (AK), and radial kurtosis (RK) as well as diffusion metrics including FA, mean diffusivity, axial diffusivity (AD), and radial diffusivity derived from DKI were obtained. Group differences in these metrics were compared using tract-based spatial statistics. Partial correlation analysis was used to evaluate correlations between microstructural changes and disease duration. Results: Compared to HCs, HM patients showed significantly reduced AK, RK, MK, and FA and significantly increased AD, predominately in the bilateral corticospinal tract, right inferior longitudinal fasciculus, superior longitudinal fasciculus, inferior fronto-occipital fasciculus, and left thalamus (all p < 0.05, threshold-free cluster enhancement corrected). In addition, DKI-derived kurtosis parameters (AK, RK, and MK) had negative correlations (r = -0.448 to -0.376, all p < 0.05) and diffusion parameter (AD) had positive correlations (r = 0.372 to 0.409, all p < 0.05) with disease duration. Conclusion: HM patients showed microstructural alterations in the brain regions responsible for motor conduction and visionrelated functions. DKI is useful for detecting white matter abnormalities in HM patients, which might be helpful for exploring and monitoring the pathogenesis of the disease.

Measurement of neutron cross sections and resonance parameters of ¹⁶⁹Tm below 100 eV

Wen-Ming, Wang,Xia, Li,Zhi-Xiang, Zhao,Zu-Ying, Zhou,Hong-Wei, Yu,Hai-Cheng, Wu,Yi-Xiang, Wei,Wang, T. F.,Kim, G. N.,Lee, M. W.,Kim, K. S.,Cho, M. H.,Ko, I. S.,Namkung, W. science press 2010 Chinese physics. C Vol.34 No.2

<P>The neutron total cross-sections of thulium (<SUP>169</SUP>Tm) were measured in the neutron energy region from 0.01 eV to 100 eV by using the time-of-flight method at the Pohang Neutron Facility, which consists of an electron linac, a water-cooled tantalum target with a water moderator, and a 12 m time of flight path. Two thulium plates with different thicknesses were used for the neutron transmission measurement. The background level was determined by using a notch-filter of Co, In, and Cd sheets. The present measurement was compared with the previous ones, and a new set of resonance parameters of <SUP>169</SUP>Tm isotope was obtained from the transmission rate by using the SAMMY code, with a comparison with the recommended parameters by Mughabghab.</P>

DNA Microarray Probe Preparation by Gel Isolation Nested PCR

Wang, Hong-Min,Ma, Wen-li,Huang, Hai,Xiao, Wei-Wei,Wang, Yan,Zheng, Wen-Ling Korean Society for Biochemistry and Molecular Biol 2004 Journal of biochemistry and molecular biology Vol.37 No.3

To develop a simplified method that can rapidly prepare DNA microarray probes in a massive scale, a lambda phage genomic DNA-fragments library was constructed for the microarray-probes collection. Four methods of DNA band recovery from the first PCR products were tested and compared. The DNA microarray probes were collected by a novel method of nested PCR that was mediated by gel isolation of the first PCR products. This method was named GIN-PCR. The probes that were prepared by this GIN-PCR technique were used as subjects to fabricate a DNA microarray. The results showed that a wooden toothpick was superior to the other 3 methods, since this technique can steadily transfer the DNA bands as the template of the second PCR after the first PCR. A group of probes were successfully collected and DNA microarrays were constructed using these probes. Hybridization results demonstrated that this technique of DNA recovery and probe preparation was rapid, efficient, and effective. We developed a cost-effective and less labor-intensive method for DNA microarray probe preparation by nested PCR that is mediated by wooden toothpick transfer of the DNA bands in the gel after electrophoresis.

Alloying Behavior and Properties of FeSiBAlNiCox High Entropy Alloys Fabricated by Mechanical Alloying and Spark Plasma Sintering

Wen Wang,Boyu Li,Sicheng Zhai,Juan Xu,Zuozhe Niu,Jing Xu,Yan Wang 대한금속·재료학회 2018 METALS AND MATERIALS International Vol.24 No.5

In this paper, FeSiBAlNiCo x ( x = 0.2, 0.8) high-entropy alloy (HEA) powders were fabricated by mechanical alloying process,and the powders milled for 140 h were sintered by spark plasma sintering (SPS) technique. The microstructures andproperties of as-milled powders and as-sintered samples were investigated. The results reveal that the fi nal milling products(140 h) of both sample powders present the fully amorphous structure. The increased Co contents obviously enhance theglass forming ability and thermal stability of amorphous HEA powders, which are refl ected by the shorter formation time offully amorphous phase and the higher onset crystallization temperature, respectively. According to coercivity, the as-milledFeSiBAlNiCo x ( x = 0.2, 0.8) powders (140 h) are the semi-hard magnetic materials. FeSiBAlNiCo 0.8 HEA powders possessthe highest saturation magnetization and largest remanence ratio. The SPS-ed products of both bulk HEAs are composedof body-centered cubic solid solution, and FeSi and FeB intermetallic phases. They possess the high relative density above97% and excellent microhardness exceeding 1150 HV. The as-sintered bulks undergo the remarkable increase in saturationmagnetization compared with the as-milled state. The SPS-ed FeSiBAlNiCo 0.8 HEA exhibits the soft magnetic properties. The electrochemical corrosion test is carried out in 3.5% NaCl solution. The SPS-ed FeSiBAlNiCo 0.2 HEA reveals the betterpassivity with low passive current density, and the higher pitting resistance with wide passive region.

Regulatory Mechanisms of Annexin-Induced Chemotherapy Resistance in Cisplatin Resistant Lung Adenocarcinoma

Wang, Chao,Xiao, Qian,Li, Yu-Wen,Zhao, Chao,Jia, Na,Li, Rui-Li,Cao, Shan-Shan,Cui, Jia,Wang, Lu,Wu, Yin,Wen, Ai-Dong Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.7

Adenocarcinoma of lung has high incidence and a poor prognosis, woith chemotherapy as the main therapeutic tool, most commonly with cisplatin. However, chemotherapy resistance develops in the majority of patients during clinic treatment. Mechanisms of resistance are complex and still unclear. Although annexin play important roles in various tumor resistance mechanisms, their actions in cisplatin-resistant lung adenocarcinoma remain unclear. Preliminary studies by our group found that in cisplatin-resistant lung cancer A549 cells and lung adenocarcinoma tissues, both mRNA and protein expression of annexins A1, A2 and A3 is increased. Using a library of annexin A1, A2 and A3 targeting combined molecules already established by ourselves we found that specific targeting decreased cisplatin-resistance. Taken together, the underlined effects of annexins A1, A2 and A3 on drug resistance and suggest molecular mechanisms in cisplatin-resistant A549 cells both in vivo and in vitro. Furthermore, the study points to improved research on occurrence and development of lung adenocarcinoma, with provision of effective targets and programmes for lung adenocarcinoma therapy in the clinic.