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| 1 | Antibiotic Resistance of Probiotic Strains of Lactic Acid Bacteria Isolated from Marketed Foods and Drugs显示文摘Objective To identify the antimicrobial resistance of commercial lactic acid bacteria present in microbial foods and drug additives by analyzing their isolated strains used for fermentation and probiotics. Methods Antimicrobial susceptibility of 41 screened isolates was tested with disc diffusion and E-test methods after species-level identification. Resistant strains were selected and examined for the presence of resistance genes by PCR. Results Distribution of resistance was found in different species. All isolates were susceptible to chloramphenicol, tetracycline, ampicillin, amoxicillin/clavulanic acid, cephalothin, and imipenem. In addition, isolates resistant to vancomycin, rifampicin, streptomycin, bacitracin, and erythromycin were detected, although the incidence of resistance to these antibiotics was relatively low. In contrast, most strains were resistant to ciprofloxacin, amikacin, trimethoprim/sulphamethoxazole, and gentamycin. The genes msrC, vanX, and dfrA were detected in strains of Enterococcus faecium, Lactobacillus plantarum, Streptococcus thermophilus, and Lactococcus lactis. Conclusion Antibiotic resistance is present in different species of probiotic strains, which poses a threat to food safety. Evaluation of the safety of lactic acid bacteria for human consumption should be guided by established criteria, guidelines and regulations. | CHANG LIU, ZHUO-YANG ZHANG, KE DONG, JIAN-PING YUAN, AND XIAO-KUI GUO P1 P Department of Medical Microbiology and Parasitology, Institutes of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China | 2009 | Biomedical and Environmental Sciences2009，22，5： | 19 |
| 2 | Using Hourly Measurements to Explore the Role of Secondary Inorganic Aerosol in PM_(2.5)during Haze and Fog in Hangzhou, China显示文摘This paper explores the role of the secondary inorganic aerosol(SIA) species ammonium, NH+4, nitrate, NO-3, and sulfate,SO2-4, during haze and fog events using hourly mass concentrations of PM2.5measured at a suburban site in Hangzhou,China. A total of 546 samples were collected between 1 April and 8 May 2012. The samples were analyzed and classified as clear, haze or fog depending on visibility and relative humidity(RH). The contribution of SIA species to PM2.5mass increased to ~50% during haze and fog. The mass contribution of nitrate to PM2.5increased from 11% during clear to 20%during haze episodes. Nitrate mass exceeded sulfate mass during haze, while near equal concentrations were observed during fog episodes. The role of RH on the correlation between concentrations of SIA and visibility was examined, with optimal correlation at 60%–70% RH. The total acidity during clear, haze and fog periods was 42.38, 48.38 and 45.51 nmol m-3,respectively, indicating that sulfate, nitrate and chloride were not neutralized by ammonium during any period. The nitrate to sulfate molar ratio, as a function of the ammonium to sulfate molar ratio, indicated that nitrate formation during fog started at a higher ammonium to sulfate molar ratio compared to clear and haze periods. During haze and fog, the nitrate oxidation ratio increased by a factor of 1.6–1.7, while the sulfur oxidation ratio increased by a factor of 1.2–1.5, indicating that both gaseous NO2 and SO2were involved in the reduced visibility. | Roeland Cornelis JANSEN SHI Yang CHEN Jianmin HU YunJie XU Chang HONG Shengmao LI Jiao ZHANG Min | 2014 | Advances in Atmospheric Sciences2014，31，6： | 15 |
| 3 | ELASTIC BEHAVIOR ANALYSIS OF 3D ANGLE-INTERLOCK WOVEN CERAMIC COMPOSITES显示文摘为 angle-interlockwoven 的有弹性的行为分析的一个微机械模型陶器的 composites 在这篇论文被建议。这个模型由在空间,在邻近的纱之间的洞和纱的实际剖面图几何学认为纤维是波动和连续性考虑实际织物结构。基于 laminate 理论,编织的 3D 角度联锁的有弹性的性质陶器的 composites 被预言。交叉的纬的不同数字几乎有一样的有弹性的 moduli。陶器的矩阵的厚度在有弹性的 moduli 上有小效果。当波动比率增加纵的模量减少和另外的幼仔的 moduli 增加时。在理论预言和试验性的结果之间的好同意在分析编织的 3Dangle-interlock 的有弹性的性质表明建议模型的可行性陶器的 composites。这篇论文的结果验证分析聚酯矩阵 composites 的方法对编织陶器的 composites 合适的事实。 | Chang Yanjun Jiao Guiqiong Wang Bo Liu Wei | 2006 | Acta Mechanica Solida Sinica2006，19，2： | 11 |
| 4 | AtMYB103 is a crucial regulator of several pathways affecting Arabidopsis anther development显示文摘Previous reports indicated that AtMYB103 has an important role in tapetum development,callose dissolution,and exine formation in A.thaliana anthers.Here,we further characterized its function in anther development by expression pattern analysis,transmission electron microscopy observation of the knockout mutant,and microarray analysis of downstream genes.A total of 818 genes differentially expressed between ms188 and the wild-type were identified by global expression profiling analysis.Functional classification showed that loss-of-function of AtMYB103 impairs cell wall modification,lipid metabolic pathways,and signal transduction throughout anther development.RNA in situ hybridization confirmed that transcription factors acting downstream of AtMYB103 (At1g06280 and At1g02040) were expressed in the tapetum and microspores at later stages,suggesting that they might have important roles in microsporogenesis.These results indicated that AtMYB103 is a crucial regulator of Arabidopsis anther development. | ZHU Jun1,ZHANG GuoQiang2,CHANG YuHua2,LI XiaoChuan2,YANG Jun2,HUANG XueYong2,YU QingBo2,CHEN Hui3,WU TianLong1* & YANG ZhongNan2* 1College of Agriculture and Biotechnology,Shanghai Jiao Tong University,Shanghai 200240,China 2College of Life and Environmental Sciences,Shanghai Normal University,Shanghai 200234,China 3Shanghai Institute of Plant Physiology and Ecology,Chinese Academy of Sciences,Shanghai 200032,China | 2010 | Science China(Life Sciences)2010，53，9： | 10 |
| 5 | Berbamine suppresses cell proliferation and promotes apoptosis in ovarian cancer partially via the inhibition of Wnt/β-catenin signaling显示文摘 | Heng Zhang Yunping Jiao Chunyang Shi Xiao Song Ying Chang Yong Ren Xiaolin Shi | 2018 | Acta Biochimica et Biophysica Sinica2018，50，6： | 9 |
| 6 | Effect of CO_2 and H_2O on gasification dissolution and deep reaction of coke显示文摘To more comprehensively analyze the effect of CO_2 and H_2O on the gasification dissolution reaction and deep reaction of coke, the reactions of coke with CO_2 and H_2O using high temperature gas–solid reaction apparatus over the range of 950–1250°C were studied, and the thermodynamic and kinetic analyses were also performed. The results show that the average reaction rate of coke with H_2O is about 1.3–6.5 times that with CO_2 in the experimental temperature range. At the same temperature, the endothermic effect of coke with H_2O is less than that with CO_2. As the pressure increases, the gasification dissolution reaction of coke shifts to the high-temperature zone. The use of hydrogen-rich fuels is conducive to decreasing the energy consumed inside the blast furnace, and a corresponding high-pressure operation will help to suppress the gasification dissolution reaction of coke and reduce its deterioration. The interfacial chemical reaction is the main rate-limiting step over the experimental temperature range. The activation energies of the reaction of coke with CO_2 and H_2O are 169.23 kJ ·mol-1 and 87.13 kJ·mol^(-1), respectively. Additionally, water vapor is more likely to diffuse into the coke interior at a lower temperature and thus aggravates the deterioration of coke in the middle upper part of blast furnace. | Zhi-yu Chang Ping Wang Jian-liang Zhang Ke-xin Jiao Yue-qiang Zhang Zheng-jian Liu | 2018 | International Journal of Minerals,Metallurgy and Materials2018，25，12： | 9 |
| 7 | Preparation of nanometer FeCuP alloy and its application in decomposition of PH3显示文摘使用分解 PH3 的新第三的基于 Fe 的合金催化剂 FeCuP 被化学减小免职方法与便宜材料准备。它的性质被 XRD, ICP 和 SEM 描绘。它 PH3 和分解条件的分解上的催化活动被学习。FeCuP 合金展出高热的稳定性和高催化的活动。把它用作催化剂,到 400 500 ° C 的从超过 800 ° C 的磷化氢减少的分解温度。磷化氢的分解率完成了 100% 。 | Chang Xiu Han Ji Li Ren Xue Jiao Tang Bao Gui Zhang | 2007 | Chinese Chemical Letters2007，18，10： | 8 |
| 8 | Metabolomic Analysis of Serum Glycerophospholipid Levels in Eosinophilic and Neutrophilic Asthma显示文摘Objective To compare the serum glycerophospholipid levels in the inflammatory subtypes of asthma by using targeted metabolomic analysis. Methods Demographic and clinical data were collected from 51 patients with asthma between January 2015 and December 2015. Routine blood and sputum induction tests were performed. Eosinophilic asthma was defined as induced sputum containing ≥ 3% eosinophils, and neutrophilic asthma, as induced sputum containing ≥ 71% neutrophils. Serum metabolic glycerophospholipid profile was determined by liquid chromatography-mass spectrometry. Differences in glycerophospholipid levels between eosinophilic and non-eosinophilic asthma and between neutrophilic and non-neutrophilic asthma were analyzed using partial least squares discriminant analysis. Results The serum lysophosphatidylglycerol level was significantly higher in the group with ≥ 3% eosinophils in sputum than in the group with < 3% eosinophils in sputum. The area under the receiver-operating characteristic curve was ≥ 70%. There was no significant difference in the serum metabolic glycerophospholipid profile between the group with sputum neutrophils ≥ 71% and the group with sputum neutrophils < 71%. Conclusion Serum lysophosphatidylglycerol is produced abundantly in eosinophilic asthma and may be a biomarker of eosinophilic asthma. This information is helpful for identifying and tailoring treatment for the common asthma subtypes. | GAI Xiao Yan ZHANG Li Jiao CHANG Chun GUO Cheng Lin ABULIKEMU Mairipaiti LI Wen Xiong WANG Juan YAO Wan Zhen ZHANG Xu | 2019 | Biomedical and Environmental Sciences2019，32，2： | 8 |
| 9 | Predictive validity of BODE index for anxious and depressive symptoms in patients with chronic obstructive pulmonary disease显示文摘背景焦虑和消沉是长期的妨碍的肺的疾病(COPD ) 的二最普通、很可修改的 comorbidities 并且在健康和预后上有独立效果。FEV1% 被显示了是焦虑和消沉的一个差的预言者。身体团索引,气流阻塞的度,呼吸困难,和锻练能力(预示) 索引是可以在 COPD 病人预言健康结果的一个多维的评价系统。这研究的目的是在这是的 COPD patients.Methods 为焦急、压抑的症状调查 BODE 索引的预兆的有效性 multicenter 在有稳定的 COPD 的 256 个病人的未来的代表性的学习。焦急、压抑的症状用医院焦虑和消沉规模(HADS ) 被估计。在焦虑,消沉和潜在的预言者之间的关系(包括 BODE 索引) 被一个二进制逻辑回归模型分析。焦急、压抑的结果题目走了更短的六分钟的走距离(6MWD ) ,有更多的呼吸困难,一更高预示索引,并且降低生活的健康相关的质量(P < 0.01 ) 。焦虑和萧条分数显著地被相关与预示指数,分别地(r=0.335, P < 0.001;r=0.306, P < 0.001 ) 。焦虑和消沉的流行增加了与预示舞台增加(P < 0.05 ) 。根据二进制逻辑回归,因为它包括了呼吸困难和 6MWD, BODE 索引是焦虑和消沉的一个好、独立的预言者,它被显示是主要 determinants.Conclusions 为焦虑和消沉的 BODE 索引的预兆的有效性被表明。我们建议 BODE 索引应该在对 COPD 严厉的评价被包括。 | AN Li LIN Ying-xiang YANG Ting ZHANG Hong JIAO Xia ZHANG Shu CHANG Xiao-hong WANG Zhao-mei WANG Chen | 2010 | Chinese Medical Journal2010，，14： | 8 |
| 10 | Symptoms of long-term exposure to moxa smoke in acupuncturists: a correlation analysis显示文摘OBJECTIVE: To investigate the effects of long-term exposure to moxa smoke on acupuncturists and to consider the association between physical symptoms and gender, age, secondhand smoke(SHS) exposure, and the duration of exposure.METHODS: A self-report, web-based questionnaire was used to evaluate the effects of moxa smoke onacupuncturists. Logistic regression was used to analyze the relationship between physical symptoms and possible correlative factors.RESULTS: A total of 858 questionnaires were analyzed. The data showed that 42.42% of acupuncturists had been exposed to moxa smoke for 5-10 years. The most frequent symptom was tearing(32.98%) and the least frequent symptom was asthma(5.24%). Logistic regression analysis showed that female acupuncturists were slightly more susceptible to cough and tearing than males(cough:OR: 1.583, 95% CI: 1.079, 2.321, P = 0.019; tearing:OR: 1.519, 95% CI: 1.094, 2.108, P = 0.013). Acupuncturists aged over 25 years reported a slightly lower incidence of eye itchiness than those aged under25 years(26-40 years: OR: 0.604, 95% CI: 0.379,0.965, P = 0.035; over 40 years: OR: 0.330, 95% CI:0.114, 0.958, P = 0.042). Ophthalmodynia occurred less in acupuncturists aged 26-40 years(OR: 0.591,95% CI: 0.359, 0.970, P = 0.038) than in those younger than 25 years. The only association between prevalence of symptoms and tobacco use and SHS exposure was that smokers had a lower occurrence of phlegm in the throat(OR: 0.579, 95% CI: 0.392,0.856, P = 0.006). Shortness of breath was less frequent in participants exposed to moxa smoke for more than 5 years(5-10 years: OR: 0.400, 95% CI:0.204, 0.785, P = 0.008; 11-20 years: OR: 0.392, 95%CI: 0.178, 0.864, P = 0.02), but a slightly higher incidence of eye itchiness was found in those with over20 years of moxa exposure(OR: 4.200, 95% CI:1.344, 3.128, P = 0.014).CONCLUSION: The most frequent symptom of moxa smoke exposure in acupuncturists was tear-ing. The association of symptoms with age and duration of exposure to moxa smoke were rather complicated; hence, care should be taken in drawing conclusions about the safety of moxa smoke based solely on its potentially harmful ingredients. | Wang Xiang Yu Chang Tang Yong Chang Shyang Yang Hui Zhang He Jiaozi Zhang Yueyue Jiao Yang Zhuang Zhiqi Yin Haiyan Zhang Chengshun Lu Peng Wu Qiaofeng Yu Shuguang | 2018 | Journal of Traditional Chinese Medicine2018，38，1： | 7 |
| 11 | Disassembly intermediates of RbsD protein remain oligomeric despite the loss of an intact secondary structure显示文摘Many proteins exist as homo-oligomers in living organisms wherein the change of oligomeric status apparently serves as an effective means for modulating their biological activities. We have previously reported that the homo-decameric RbsD from Escherichia coli undergoes stepwise disassembly and non-stepwise reassembly. Here the structural status of the urea-induced RbsD disassembly intermediates was examined, mainly using urea-containing polyacrylamide gel electrophoresis and chemical cross-linking. Such intermediates were found to remain oligomeric while losing their intact secondary structures. Such disassembly intermediates were able to effectively refold when the concentration of the urea denaturant was reduced to a lower level, or to refold/reassemble into the native decamers when urea was completely removed, as detected by non-denaturing polyacrylamide gel electrophoresis. These novel observations strongly suggest that the assembly of oligomeric proteins may occur before the completion of subunit folding. | FENG YongJun1, ZHANG Meng2, HU MingXi1, ZHENG Jie1, JIAO WangWang2 & CHANG ZengYi2 1 School of Life Science, Beijing Institute of Technology, Beijing 100081, China 2 School of Life Sciences, National Laboratory of Protein Engineering and Plant Genetic Engineering, Center for Protein Science, Peking University, Beijing 100871, China | 2009 | Science China(Life Sciences)2009，52，11： | 5 |
| 12 | Image Segmentation via Mean Shift and Loopy Belief Propagation显示文摘This paper presents a novel approach that can quickly and effectively partition images based on fully exploiting the spatially coherent property. We propose an algorithm named iterative loopy belief propagation(iLBP) to integrate the homogenous regions and prove its convergence. The image is first segmented by mean shift(MS) algorithm to form over-segmented regions that preserve the desirable edges and spatially coherent parts. The segmented regions are then represented by region adjacent graph(RAG) . Motivated by k-means algorithm,the iLBP algorithm is applied to perform the minimization of the cost function to integrate the over-segmented parts to get the final segmentation result. The image clustering based on the segmented regions instead of the image pixels reduces the number of basic image entities and enhances the image segmentation quality. Comparing the segmentation result with some existing algorithms,the proposed algorithm shows a better performance based on the evaluation criteria of entropy especially on complex scene images. | JIA Jianhua,JIAO Licheng,CHANG Xia Key Laboratory of Intelligent Perception and Image Understanding of Ministry of Education of China/Institute of Intelligent Information Processing,Xidian University,Xi’an 710071,Shaanxi,China | 2010 | Wuhan University Journal of Natural Sciences2010，15，1： | 5 |
| 13 | DESC: enabling secure data exchange based on smart contracts显示文摘Dear editor,As data are one of the most important factors of today’s intelligent systems but are relatively scarce,people try exchanging data with other organizations or public marketplaces.However,data exchange is now lack of a secure execution mecha- | Jiao LIANG Weili HAN Zeqing GUO Yaoliang CHEN Chang CAO Xiaoyang Sean WANG Fenghua LI | 2018 | Science China(Information Sciences)2018，61，4： | 5 |
| 14 | Maternal Disononyl Phthalate Exposure Activates Allergic Airway Inflammation via Stimulating the Phosphoinositide 3-kinase/Akt Pathway in Rat Pups显示文摘Objective To evaluate the effect of diisononyl phthalate(DINP) exposure during gestation and lactation on allergic response in pups and to explore the role of phosphoinositide 3-kinase/Akt pathway on it. Methods Female Wistar rats were treated with DINP at different dosages(0, 5, 50, and 500 mg/kg of body weight per day). The pups were sensitized and challenged by ovalbumin(OVA). The airway response was assessed; the airway histological studies were performed by hematoxylin and eosin(HE) staining; and the relative cytokines in phosphoinositide 3-kinase(PI3K)/Akt pathway were measured by enzyme-linked immunosorbent assay(ELISA) and western blot analysis. Results There was no significant difference in DINP's effect on airway hyperresponsiveness(AHR) between male pups and female pups. In the 50 mg/(kg·d) DINP-treated group, airway response to OVA significantly increased and pups showed dramatically enhanced pulmonary resistance(RI) compared with those from controls(P<0.05). Enhanced Akt phosphorylation and NF-κB translocation, and Th2 cytokines expression were observed in pups of 50 mg/(kg·d) DINP-treated group. However, in the 5 and 500 mg/(kg·d) DINP-treated pups, no significant effects were observed. Conclusion There was an adjuvant effect of DINP on allergic airway inflammation in pups. Maternal DINP exposure could promote OVA-induced allergic airway response in pups in part by upregulation of PI3K/Akt pathway. | CHEN Li CHEN Jiao XIE Chang Ming ZHAO Yan WANG Xiu ZHANG Yun Hui | 2015 | Biomedical and Environmental Sciences2015，28，3： | 5 |
| 15 | 2,3,7,8-Tetrachlorodibenzo-p-dioxin Promotes Proliferation of Astrocyte Cells via the Akt/STAT3/Cyclin D1 Pathway显示文摘Objective The compound 2,3,7,8-tetrachlorodibenzo-p-dioxin(TCDD), a persistent organic pollutant, is harmful to the nervous system, but its effects on the brain are still unclear. This study aimed to investigate the effects of TCDD on astrocytes proliferation and underlying molecular mechanism. Methods The cell proliferation was measured by EdU-based proliferation assay and PI staining by flow cytometry. Protein expression levels were detected by Western blotting. Immunofluorescence, cytoplasmic and nuclear fractions separation were used to assess the distribution of signal transducer and activator of transcription 3(STAT3). Results C6 cells treated with 10 and 50 nmol/L TCDD for 24 h showed significant promotion of the proliferation of. The exposure to TCDD resulted in the upregulation in the expression levels of phosphorylated protein kinase B(p-Akt), phosphorylated STAT3, and cyclin D1 in a dose-and time-dependent manner. The inhibition of Akt expression with LY294002 or STAT3 expression with AG490 abolished the TCDD-induced cyclin D1 upregulation and cell proliferation. Furthermore, LY294002 suppressed the activation of STAT3. Finally, TCDD promoted the translocation of STAT3 from the cytoplasm to the nucleus, and LY294002 treatment blocked this effect. Conclusion TCDD exposure promotes the proliferation of astrocyte cells via the Akt/STAT3/cyclin D1 pathway, leading to astrogliosis. | WU Chang Yue YIN Kai Zhi ZHANG Yan JIAO Man ZHAO Xin Yuan WU Qi Yun | 2019 | Biomedical and Environmental Sciences2019，32，4： | 5 |
| 16 | Separation and enrichment of trace ractopamine in biological samples by uniformly-sized molecularly imprinted polymers显示文摘In order to prepare a high capacity packing material for solid-phase extraction with specific recognition ability of trace ractopamine in biological samples, uniformly-sized, molecularly imprinted polymers (MIPs) were prepared by a multi-step swelling and polymerization method using methacrylic acid as a functional monomer, ethylene glycol dimethacrylate as a cross-linker, and toluene as a porogen respectively. Scanning electron microscope and specific surface area were employed to identify the characteristics of MIPs. Ultraviolet spectroscopy, Fourier transform infrared spectroscopy, Scatchard analysis and kinetic study were performed to interpret the specific recognition ability and the binding process of MIPs. The results showed that, compared with other reports, MIPs synthetized in this study showed high adsorption capacity besides specific recognition ability. The adsorption capacity of MIPs was 0.063 mmol/g at 1 mmol/L ractopamine concentration with the distribution coefficient 1.70. The resulting MIPs could be used as solid-phase extraction materials for separation and enrichment of trace ractopamine in biological samples. | Ya Li Qiang Fu Meng Liu Yuan-Yuan Jiao Wei Du Chong Yu Jing Liu Chun Chang Jian Lu | 2012 | Journal of Pharmaceutical Analysis2012，2，6： | 4 |
| 17 | Short-segment Barrett's esophagus and cardia intestinal metaplasia:A comparative analysis显示文摘AIM:To investigate the endoscopy and histology of short-segment Barrett's esophagus (SSBE) and cardia intestinal metaplasia (CIM),and their correlation with Helicobacter pylori (H. pylori) gastritis and gastroesophageal reflux disease (GERD). METHODS:Biopsy specimens were taken from 32 SSBE patients and 41 CIM patients with normal appearance of the esophagogastric junction. Eight biopsy specimens from the lower esophagus,cardia,and gastric antrum were stained with hematoxylin/eosin,Alcian blue/periodic acid-Schiff,Alcian blue/high iron diamine and Gimenez dye. Results were graded independently by one pathologist. RESULTS:The SSBE patients were younger than the CIM patients (P < 0.01). The incidence of dysplasia and incomplete intestinal metaplasia subtype was higher in SSBE patients than in CIM patients (P < 0.01). H. pylori infection was correlated with antral intestinal metaplasia (P < 0.05),but not with reflux symptomatic,endoscopic,or histological markers of GERD in CIM patients. SSBE was correlated with reflux symptomatic and endoscopic esophagitis (P < 0.01),but not with H. pylori infection and antral intestinal metaplasia. CONCLUSION:Dysplasia risk is significantly greater in SSBE patients than in CIM patients. CIM is a manifestation of H. pylori-associated and multifocal atrophic gastritis,whereas SSBE may result from GERD. | Ying Chang,Digestive Endoscopic Center,Shanghai Sixth Hospital,Shanghai Jiao Tong University,Shanghai 200233,China Bin Liu,Department of Emergence Surgery,Shaanxi Provincial People’s Hospital,Xi’an 710068,Shaanxi Province,China Gui-Sheng Liu,Department of Gastroenterology,Shaanxi Provincial People’s Hospital,Xi’an 710068,Shaanxi Province,China Tao Wang,Department of Gastroenterology,First Hospital of Xi’ an Jiaotong University,Xi’an 710061,Shaanxi Province,China Jun Gong,Department of Gastroenterology,Second Hospital of Xi’an Jiaotong University,Xi’an 710004,Shaanxi Province,China | 2010 | World Journal of Gastroenterology2010，16，48： | 3 |
| 18 | Network analysis of protein-protein interaction显示文摘Residue networks are constructed by defining the residues as the vertices and atom contacts between them as the edges. The residue network of a protein complex is divided into two types of networks, i.e. the hydrophobic and the hydrophilic residue networks. By analyzing the network parameters, it is found that the correct binding complex conformations are of both higher sum of the interface degree values and lower characteristic path length than those incorrect ones. These features reflect that the correct bind-ing complex conformations have better geometric and/or residue type complementarity, and the correct binding modes are very important for preserving the characteristic path lengths of native protein complexes. In addition, two scoring terms are proposed based on the network parameters, in which the characteristics of the entire complex shape and residue type complementarity are taken into account. These network-based scoring terms have also been used in conjunction with other scoring terms, and the new multi-term scoring HPNCscore is devised in this work. It can improve the discrimination of the combined scoring function of RosettaDock more than 12%. This work might enhance our knowledge of the mechanisms of protein-protein interactions and recognition. | Shan Chang XinQi Gong Xiong Jiao ChunHua Li WeiZu Chen CunXin Wang | 2010 | Chinese Science Bulletin2010，55，9： | 3 |
| 19 | EFFECT OF Z-PINS’ DIAMETER,SPACING AND OVERLAP LENGTH ON CONNECTING PERFORMANCE OF CMC SINGLE LAP JOINT显示文摘The effect of through-thickness reinforcement by composite pins (Z-pins) on the static tensile strength and failure mechanisms of the joints made from ceramic matrix composite (CMC) is investigated. Overlap length of the single lap joint is 15 mm, 20 mm, 23 mm, 37 mm, and 60 mm, respectively. The experimental results indicate that the final failure modes of the joints can be divided into two groups, (a) the bond-line stops debonding until crack encounters Z-pins; and then the adherends break at the location of Z-pins, when overlap length is more than 20 mm; (b) the bond-line detaches entirely and Z-pins are drawn from adherends, when overlap length is equal to 15 mm. A simple effcient computational approach is presented for analyzing the benefit of through-thickness pins for restricting failure in the single lap joints. Here, the mechanics problem is simplified by representing the effect of the pins by tractions acting on the fracture surfaces of the cracked bond-line. The tractions are prescribed as functions of the crack displacement, which are available in simple forms that summarize the complex deformations to a reasonable accuracy. The resulting model can be used to track the evolution of complete failure mechanisms, for example, bond-line initial delamination and ultimate failure associated with Z-pin pullout, ultimate failure of the adherends. The paper simulates connecting performance of the single lap joints with different Z-pins’ diameter, spacing and overlap length; the numerical results agree with the experimental results; the numerical results indicate enlarging diameter and decreasing spacing of Z-pins are in favor of improving the connecting performance of the joints. By numerical analysis method, the critical overlap length that lies between two final failure modes is between 18 mm and 19 mm, when Z-pins’ diameter and spacing are 0.4 mm, 5 mm, respectively. | Yongqiang Tao Guiqiong Jiao Bo Wang Yanjun Chang | 2008 | Acta Mechanica Solida Sinica2008，21，5： | 3 |
| 20 | Diagnostic value of fecal occult blood testing for screening colorectal cancer显示文摘DiagnosticvalueoffecaloccultbloodtestingforscreeningcolorectalcancerCHENKun1,JIAODengAo1,ZHENGShu2,ZHOULun2,YUHai2,YUANYaC... | CHEN Kun 1, JIAO Deng Ao 1, ZHENG Shu 2, ZHOU Lun 2, YU Hai 2, YUAN Ya Chang 3, YAO Kai Yan 3, MA Xing Yuan 3 and ZHANG Yang 1 | 1997 | World Journal of Gastroenterology1997，3，3： | 3 |
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