Two New Species of Placolecis (Lichenized Ascomycota) from China

( An Cheng Yin ),( Xin Yu Wang ),( Dong Liu ),( Yan Yun Zhang ),( Mei Xia Yang ),( Li Juan Li ),( Li Song Wang ) 한국균학회 2019 Mycobiology Vol.47 No.4

Two new species of the lichen genus Placolecis are discovered in China, namely P. kunmingensis An. C. Yin & Li S. Wang and P. sublaevis An. C. Yin & Li S. Wang. The new combination P. loekoesiana (S.Y. Kondr., Farkas, J.J. Woo & Hur) An. C. Yin is proposed. Placolecis kunmingensis is characterized by having simple, spherical or ellipsoid, hyaline spores, and pear-shaped pycnidia; while P. sublaevis can be distinguished by its thallus forming larger aggregations with slightly flattened lobes at the thallus margin, and urn-shaped pycnidia. Descriptions, a phylogenetic tree and a key are provided for all the known Placolecis species in China.

Prognostic Significance of Preoperative Serum Alpha-fetoprotein in Hepatocellular Carcinoma and Correlation with Clinicopathological Factors: a Single-center Experience from China

An, Song-Lin,Xiao, Ting,Wang, Li-Ming,Rong, Wei-Qi,Wu, Fan,Feng, Li,Liu, Fa-Qiang,Tian, Fei,Wu, Jian-Xiong Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.10

Objectives: To investigate the prognosis significance of preoperative serum alpha-fetoprotein (AFP) and the correlation with clinicopathological factors of hepatocellular carcinoma (HCC) patients who underwent hepatectomy. Materials and Methods: Clinicopathological data of retrospective analysis were collected for 251 HCC patients undergoing hepatectomy in this study. According to preoperative AFP level, patients were categorized into AFP-negative (0-20ng/mL) and AFP-positive (>20 ng/mL) groups for Kaplan-Meier analysis and Cox proportional hazard regression modeling. Results: The results demonstrated that increased AFP was associated with longer prothrombin time (PTs), liver capsule invasion, low grade differentiation, and late Barcelona Clinic Liver Center (BCLC) stage. Moreover, the female patients had a greater prevalence of increased preoperative AFP than male patients [284.8 (3.975-3167.5) vs (3.653-140.65); Z-2.895, p=0.004]. The 1-, 3-, and 5-year recurrence-free survival (RFS) rates were 78.1, 57.5, and 40.6 % in the AFP-negative group and 61.8, 37.7, and 31.4 %, respectively, in the AFP-positive group (log-rank test 8.312, p=0.004). The 1-, 3-, and 5-year overall survival (OS) rates were 94.4, 83.8, and 62.3% in the AFP-negative group and 87.2, 60.0, and 36.7%, respectively, in the AFP-positive group. The difference was statistically significant (log-rank test, 16.884, p=0.000). Cox proportional-hazards model identified preoperative AFP to be an independent prognostic predictor of overall survival. Conclusions: Preoperative serum AFP is an independent predictor of prognosis among HCC patients following surgical resection. Female patients have a higher preoperative AFP than their male counterparts.

Epidemiology of Esophageal Cancer in Yanting - Regional Report of a National Screening Programme in China

Wang, Xiao,Fan, Jin-Chuan,Wang, An-Rong,Leng, Yue,Li, Jun,Bao, Yu,Wang, Ying,Yang, Qing-Feng,Ren, Yu Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.4

Background and Objectives: Yanting in Sichuan Province is one of the highest risk areas of esophageal cancer (EC) in the world. We here summarize the epidemiology of EC in Yanting using data from the national screening programme during 2006-2011. Methods: Random cluster sampling was used to select a proportion of natural villages from six towns in Yanting, and residents aged 40-69 years old were invited for screening. Participants were screened using endoscopy with iodine staining and then confirmed by histological examinations. Results: The overall detection rates of low-grade hyperplasia (LH), moderate hyperplasia (MH), high-grade hyperplasia (HH), carcinoma in situ (CIS), intramucosal carcinoma (IC) and invasive carcinoma (INC) were 5.33%, 1.28%, 0.68%, 0.15%, 0.06% and 0.29%, respectively. The detection rates of LH, MH, HH and INC increased with age, reaching the peak among those aged 60-65 years, and the prevalences of LH and MH were higher among men than among women. In addition, the detection rates of hyperplasia were much higher in mountainous than in hilly areas. Conclusions: Among the high risk population, there are a great number of people with early-stage EC or precancerous conditions who do not have presenting symptoms. In particular, the elderly, men, or those living in mountainous areas are the most vulnerable population. It is therefore important to reinforce health education and screening services among such high risk populations.

SLQE : An Improved Link Quality Estimation based on Four-bit LQE

An Zhou,Baowei Wang,Xingming Sun,Xingang You,Huiyu Sun,Tao Li 보안공학연구지원센터 2015 International Journal of Future Generation Communi Vol.8 No.1

Link quality estimation (LQE) is an effective basic building block in wireless sensor networks (WSNs) and higher cross layer design of network protocol. Some researchers have investigated the statistical properties of the link quality estimators independently from higher-layer protocols, and their impact on the Collection Tree Routing Protocol (CTP). Then they set up a dedicated LQE, independent of the protocol interface, which has in total of four bits information: one from the physical layer, one from the link layer, and two from the network layer. Four-bit has been found to be a good estimator; however its performance heavily depends on the tuning of its parameters. But we found that Four-bit couldn’t be working effectively in responding to the burst situation after repeated experiments. So we redesigned the link estimation method, called Stable Link Quality Estimation (SLQE), which combines active probing with passive snooping to make estimation more stable. We have found that the new design can cope with the emergency. Moreover it also enhances the robustness of the network, and saves the overall energy consumption of the network.

Negotiation Model of Design Optimization Profit Distribution with Fairness Concerns in Construction Projects

An Xiaowei,Li Huimin,Omoleye Ojuri,Wang Zhuofu,Ding Jiyong 대한토목학회 2018 KSCE JOURNAL OF CIVIL ENGINEERING Vol.22 No.7

Design optimization is an effective strategy to reduce construction project costs. This study focuses on the benefit of designoptimization, which should be allocated to the designer. Furthermore, the distribution ratio can be determined through negotiation. Inline with this view, this paper initially analyzed the benefits of engineering design optimization and the basic mechanism of itsdistribution. Second, we established the negotiation model of design optimization profit distribution by considering the fairnessconcern behavior of subjects. Finally, we set up the following three experimental scenarios: the designer solely has fairness concernbehavior, the owner exclusively has fairness concern behavior, and both negotiators have fairness concern behavior. From theengineering projects perspectives, we further analyzed the effects of the fairness concerns of both negotiators in terms of engineeringdesign optimization and negotiation performance using negotiation simulation experiments. Our experimental scenarios results showthat the appropriate behavior of fairness concerns by the two negotiators is valuable in improving their own advantages. However,excessive attention to the behaviors of fairness concerns by the two negotiators may lead to an increase in the negotiation cycle,which is not beneficial in attaining optimization. This study aims to provide references for the construction project management.

Few-mode fiber multi-parameter sensor with distributed temperature and strain discrimination.

Li, An,Wang, Yifei,Fang, Jian,Li, Ming-Jun,Kim, Byoung Yoon,Shieh, William Optical Society of America 2015 Optics letters Vol.40 No.7

<P>We propose a unique few-mode fiber (FMF)-based multi-parameter optical-fiber sensor for distributed measurement of temperature and strain. We launch a pump and a probe signal through specific linearly polarized modes into a FMF, and monitor the Brillouin frequency shift (BFS) in each mode. By analyzing the temperature and strain coefficients of the BFS of the two lowest order (LP(01), LP(11)) modes, discrimination of temperature and strain are successfully demonstrated, with an accuracy of 1.2C and 21.9??με.</P>

Unconventional superconductivity of NdFeAsO_0.82F_0.18 indicated by the low temperature dependence of the lower critical field <i>H</i>_c1

Wang, X L,Dou, S X,Ren, Zhi-An,Yi, Wei,Li, Zheng-Cai,Zhao, Zhong-Xian,Lee, Sung-IK IOP Pub 2009 Journal of physics, an Institute of Physics journa Vol.21 No.20

<P>We measured the initial <I>M</I>–<I>H</I> curves for a sample of the newly discovered superconductor NdFeAsO<SUB>0.82</SUB>Fe<SUB>0.18</SUB>, which had a critical temperature, <I>T</I><SUB>c</SUB>, of 51 K and was fabricated at the high pressure of 6 GPa. The lower critical field, <I>H</I><SUB>c1</SUB>, was extracted from the deviation point of the Meissner linearity in the <I>M</I>–<I>H</I> curves, which show linear temperature dependence in the low temperature region down to 5 K. The <I>H</I><SUB>c1</SUB>(<I>T</I>) indicates no s-wave superconductivity, but rather an unconventional superconductivity with a nodal gap structure. Furthermore, the linearity of <I>H</I><SUB>c1</SUB> at low temperature does not hold at high temperature, but shows other characteristics, indicating that this superconductor might have multi-gap features. Based on the low temperature nodal gap structure, we estimate that the maximum gap magnitude Δ<SUB>0</SUB> = (1.6 ± 0.2)  <I>k</I><SUB>B</SUB><I>T</I><SUB>c</SUB>.</P>

Identification of MicroRNAs as potential biomarkers for detecting ischemic stroke

Li Kexin,Shen Li,Zheng Pingping,Wang Yanjun,Wang Lijuan,Meng Xiaoli,Lv Yaogai,Xue Zhiqiang,Guo Xin,Zhang Anning,Pan Pan,Bi Chunli,Chen Yang,Feng Tianyu,Li Bo,Jin Lina,Yao Yan 한국유전학회 2022 Genes & Genomics Vol.44 No.1

Background: Increasing epidemic of ischemic stroke (IS) makes it urgent to understand the pathogenesis and regulatory mechanism, previous studies have described microRNAs (miRNAs) is part of the brain's response to ischemia. Objective: The aim of this study was to screen potential biomarkers for the prediction and novel treatment of IS. Methods: Differentially expressed miRNAs were screened from three newly diagnosed IS patients and three controls by RNA sequencing technology. Furthermore, target prediction databases were then used to analysis the target genes of different expressed miRNAs, and the Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway database were used to identify the functions and the main biochemical and signal pathways of differentially expressed target genes. Results: Our results revealed that 27 miRNAs were differentially expressed in IS, among which, hsa-miR-659-5p was the most highly increased and was first found to be associated with IS. In addition, KEGG pathway analyses showed that differentially expressed miRNAs were mainly significantly enriched in lysosome pathway, cytokine-cytokine receptor interaction pathway, spliceosome pathway, base excision repair pathway. Conclusions: miRNAs were involved in IS pathogenesis, and hsa-miR-659-5p, hsa-miR-151a-3p and hsa-miR-29c-5p as the three highest |log2FoldChange| regulation in this study, which may be the biomarkers of IS and need further study.

A Concurrent Calculus of High-Orger Communicating Systems

Wang, Ju An,Li, Wei 대한전자공학회 1992 HICEC:Harbin International Conference on Electroni Vol.1 No.1

Concurrent calculus CC is a mathematical model for concurrent and communicating systems. Comparing it with the exsisting caculi such as CCS[Mil 80], CMP[Mil 89a,b], CHOCS[Tho 89] etc., CC includes λ-calculus [Bar 85] as its subtheory and embodies most important characteristics of CCS and other calculi. CC treats processes and communicating ports as first-class citisens, that is, both of them can be sent and received during communication. Besides, the communicating ports in CC-processes are allowed to be any expressions. Thus CC is much more flexible and can describe not only the first-order communicating activities but also the self-modifying functions of communicating systems. This paper presents the syntax and semantics of CC first, some examples are given which illustrate the expressing power of CC. Then we study the high-order bisimulation equivalence of CC-processes and the algebraic laws of CC. All theorem proofs are omitted due to space limitation, which can be found in [Wang 92].

Galloping of steepled main cables in long-span suspension bridges during construction

An, Yonghui,Wang, Chaoqun,Li, Shengli,Wang, Dongwei Techno-Press 2016 Wind and Structures, An International Journal (WAS Vol.23 No.6

Large amplitude oscillation of steepled main cables usually presents during construction of a long-span bridge. To study this phenomenon, six typical main cables with different cross sections during construction are investigated. Two main foci have been conducted. Firstly, aerodynamic coefficients of a main cable are obtained and compared through simulation and wind tunnel test: (1) to ensure the simulation accuracy, influences of the numerical model's grid size, and the jaggy edges of main cable's cross section on main cable's aerodynamic coefficients are investigated; (2) aerodynamic coefficients of main cables at different wind attack angles are obtained based on the wind tunnel test in which the experimental model is made by rigid plastic using the 3D Printing Technology; (3) then numerical results are compared with wind tunnel test results, and they are in good agreement. Secondly, aerodynamic coefficients of the six main cables at different wind attack angles are obtained through numerical simulation. Then Den Hartog criterion is used to analyze the transverse galloping of main cables during construction. Results show all the six main cables may undergo galloping, which may be an important reason for the large amplitude oscillation of steepled main cables during construction. The flow structures around the main cables indicate that the characteristic of the airflow trajectory over a steepled main cable may play an important role in the galloping generation. Engineers should take some effective measures to control this harmful phenomenon due to the big possibility of the onset of galloping during the construction period.