• Title/Summary/Keyword: Sichuan China

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Study on the Genetic Diversity and Biological Characteristics of Wild Agaricus bisporus Strains from China

  • Wang, Zesheng;Liao, Jianhua;Chen, Meiyuan;Wang, Bo;Li, Hongrong;Lu, Zhenghui;Guo, Zhongjie
    • 한국균학회소식:학술대회논문집
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    • 2009.10a
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    • pp.3-13
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    • 2009
  • 90 wild Agaricus strains from China, including 44 Agaricus bisporus strains identified preliminarily by isozyme electrophoresis, were studied by the techniques of SRAP and ISSR. 18 special SRAP bands and 12 special ISSR bands were analyzed, the strains were clustered and a demdrogram was obtained. The results showed that the strains were divided into 2 groups, wild A. bisporus group and the other Agaricus group. It is similar to the result of isozyme electrophoresis. 41 wild A. bisporus strains from Sichuan and Tibet were divided into 4 groups based on their growing places, suggesting the regionally difference of the strains to be quite obvious. Some white wild A. bisporus strains from Xinjiang and Tibet had special patterns, resulting in lower coefficient values with other wild A. bisporus strains. The biological characteristics of three wild A. bisporus strains were analyzed, and the results showed: 1. The wild strains grew slowly on PDA medium with weak appressed mycelia, and grew normally in kernel or fermented cottonseed shell substrate. 2. They grew faster than control strain As2796 under lower temperature of $16^{\circ}C$, and higher temperature of $32^{\circ}C$, with optimum growing temperature of $20-24^{\circ}C$, which was $4^{\circ}C$ lower than that of control strain. 3. In the cultivation with manure compost via twice fermentation, the mycelia grew normally in compost and quite slowly in casing soil, and the fruitbodies occurred less and late with easily opening and low production. 4. The fruitbody was off-white with flat and scaled cap, long stipe and dark gill. The bisporus basidia occupied 70-80% and trisporus basidia 20-30% of the total basidia. 5. Heterokaryotic monospore isolates could fruit in cultivation, and the homokaryotic isolates could cross with those derived from overseas wild A.bisporus strains. 6. The electrophoresis phenotype of isozymes such as esterase etc. belonged to high production type (H type). 7. The RAPD patterns made much difference from those of high production, good quality or hybrid strains, which indicated that the wild strains produce a new kind of RAPD type.

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Analysis of Chinese Higher Vocational Education Policy and Social Responsibility (중국의 고등직업교육 정책과 사회적 책임 분석)

  • Wang, GuanEn
    • Journal of the International Relations & Interdisciplinary Education
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    • v.1 no.2
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    • pp.102-117
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    • 2021
  • Higher vocational education in China has already achieved commendable results as a transition from rudimentary development to high-quality development after more than 40 years of development. After reform and opening up, our country's Institute of Higher Vocational Education has transported a large amount of high-quality technical and technical talents to each field. Higher vocational education is an indispensable part of China's education system, and is an important competency for cultivating "high quality", "practical" and "functional" talents, making a huge contribution to the economic and social development. At the same time, the employment stress of workers with relatively low skills, such as peasant workers, domestic veterans, and retired workers, is increasing. Against this background, higher education is essential to guide and support national policies in order to solve the unemployment problem and provide strong human resource guarantees to society. Higher vocational education policy not only highlights the characteristics of the times unique to the development of higher vocational education in China, but also reflects the trajectory of changes in higher vocational education. Not only is it related to the scientific development of higher vocational education, but it also deals with whether higher vocational education can foster high-quality human resources. Therefore, it is meaningful to study the change process of higher vocational education policy.

An Analysis on Confucian Values of China Normal University Students - focused on the Q Methodology - (중국 사범대학생의 유교적 가치관 유형 분석 - Q방법론적 접근 -)

  • Yeo, Sang Woon;Li, Zhangpei;Li, Xiaohui
    • Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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    • v.7 no.11
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    • pp.273-283
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    • 2017
  • This study aims to analysis the types of features of confucian values of China normal university students. To achieve this purpose, Q methodology is applied. This study was conducted at Sichuan Normal University in China. Total 42 students and 47 statements collected through literature research. The implementation were formed in four types, statism, traditionalism, nominalism, and naturalism. Through this study, from the perspective of international relations, family relations, and friendship, all four type of features were presented intellectualized intelligentiae. The common feature of the four types is gender role, and the cognition of gender role is changing, and women will becoming an independent individual. Although confucian values had made great contribution for the development of Chinese traditional culture, it is an undeniable fact that some ideas not according with the modern social demand for development are hidden in the back.And we should look at and appreciate confucian values from a comprehensive and dialectic view.

Integrated Bioinformatics Approach Reveals Crosstalk Between Tumor Stroma and Peripheral Blood Mononuclear Cells in Breast Cancer

  • He, Lang;Wang, Dan;Wei, Na;Guo, Zheng
    • Asian Pacific Journal of Cancer Prevention
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    • v.17 no.3
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    • pp.1003-1008
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    • 2016
  • Breast cancer is now the leading cause of cancer death in women worldwide. Cancer progression is driven not only by cancer cell intrinsic alterations and interactions with tumor microenvironment, but also by systemic effects. Integration of multiple profiling data may provide insights into the underlying molecular mechanisms of complex systemic processes. We performed a bioinformatic analysis of two public available microarray datasets for breast tumor stroma and peripheral blood mononuclear cells, featuring integrated transcriptomics data, protein-protein interactions (PPIs) and protein subcellular localization, to identify genes and biological pathways that contribute to dialogue between tumor stroma and the peripheral circulation. Genes of the integrin family as well as CXCR4 proved to be hub nodes of the crosstalk network and may play an important role in response to stroma-derived chemoattractants. This study pointed to potential for development of therapeutic strategies that target systemic signals travelling through the circulation and interdict tumor cell recruitment.

Salt Processed Food and Gastric Cancer in a Chinese Population

  • Lin, Si-Hao;Li, Yuan-Hang;Leung, Kayee;Huang, Cheng-Yu;Wang, Xiao-Rong
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.13
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    • pp.5293-5298
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    • 2014
  • To investigate the association between salt processed food and gastric cancer, a hospital based case-control study was conducted in a high risk area of China. One hundred and seven newly diagnosed cases with histological confirmation of gastric cancer and 209 controls were recruited. Information on dietary intake was collected with a validated food frequency questionnaire. Unconditional logistic regression was applied to estimate the odds ratios with adjustment for other potential confounders. Comparing the high intake group with never consumption of salt processed foods, salted meat, pickled vegetables and preserved vegetables were significantly associated with increased risk of gastric cancer. Meanwhile, salt taste preference in diet showed a dose-response relationship with gastric cancer. Our results suggest that consumption of salted meat, pickled and preserved vegetables, are positively associated with gastric cancer. Reduction of salt and salt processed food in diets might be one practical measure to preventing gastric cancer.

Strain energy-based fatigue life prediction under variable amplitude loadings

  • Zhu, Shun-Peng;Yue, Peng;Correia, Jose;Blason, Sergio;De Jesus, Abilio;Wang, Qingyuan
    • Structural Engineering and Mechanics
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    • v.66 no.2
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    • pp.151-160
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    • 2018
  • With the aim to evaluate the fatigue damage accumulation and predict the residual life of engineering components under variable amplitude loadings, this paper proposed a new strain energy-based damage accumulation model by considering both effects of mean stress and load interaction on fatigue life in a low cycle fatigue (LCF) regime. Moreover, an integrated procedure is elaborated for facilitating its application based on S-N curve and loading conditions. Eight experimental datasets of aluminum alloys and steels are utilized for model validation and comparison. Through comparing experimental results with model predictions by the proposed, Miner's rule, damaged stress model (DSM) and damaged energy model (DEM), results show that the proposed one provides more accurate predictions than others, which can be extended for further application under multi-level stress loadings.

Investigation of Self-assembly Structure and Properties of a Novel Designed Lego-type Peptide with Double Amphiphilic Surfaces

  • Wang, Liang;Zhao, Xiao-Jun
    • Bulletin of the Korean Chemical Society
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    • v.31 no.12
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    • pp.3740-3744
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    • 2010
  • A typically designed 'Peptide Lego' has two distinct surfaces: a hydrophilic side that contains the complete charge distribution and a hydrophobic side. In this article, we describe the fabrication of a unique lego-type peptide with the AEAEYAKAK sequence. The novel peptide with double amphiphilic surfaces is different from typical peptides due to special arrangement of the residues. The results of CD, FT-IR, AFM and DLS demonstrate that the peptide with the random coil characteristic was able to form stable nanostructures that were mediated by non-covalent interactions in an aqueous solution. The data further indicated that despite its different structure, the peptide was able to undergo self-assembly similar to a typical peptide. In addition, the use of hydrophobic pyrene as a model allowed the peptide to provide a new type of potential nanomaterial for drug delivery. These efforts collectively open up a new direction in the fabrication of nanomaterials that are more perfect and versatile.

The Evolution and Structural Characteristics of Scaffolding Constructions in Macao Area from Historical Documents and Visual Materials (문헌 및 도상(圖像) 사료를 통해 본 마카오 '붕식(棚式)' 건축의 연원(淵源)과 구조 형식)

  • Hong, Shu-ying;Han, Dong-Soo
    • Journal of architectural history
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    • v.32 no.1
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    • pp.7-20
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    • 2023
  • The construction method of scaffolding structures is different from Mortise and Tenon and bucket arch structure of traditional large woodwork. It forms an independent construction system-fixing nodes with knots, a large number of diagonal braces are used to fix shelves and the structures mostly contain X-shape and triangular shape details. Simple ones include stalls, sheds, rain sheds, altars, lamp racks etc. But the scaffolding with larger scale and more complicated structure are modeled on archways, theatres and other buildings which are used in commercial and festival activities. At present, Macao, Hong Kong, Guangdong, Sichuan, Shanxi and other places in China have retained the custom of using scaffolding structures in important festival activities, but their uses, techniques and building types are slightly different from place to place. Due to building and demolishing at any time, the construction and service cycle is short. As a result, there are almost no physical objects left. We can only deduce the use and technical characteristics of ancient scaffolding skills through the colorful building styles that have been preserved with folk activities in various parts of China, the craftsmanship handed down from generation to generation by the scaffolding guild and artisans, and the description of cultural and historical materials and the mutual corroboration of visual materials.

Uniform-fiber-Bragg-grating-based Fabry-Perot Cavity for Passive-optical-network Fault Monitoring

  • Xuan, Zhang;Ning, Ning;Tianfeng, Yang
    • Current Optics and Photonics
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    • v.7 no.1
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    • pp.47-53
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    • 2023
  • We propose a centralized passive-optical-network monitoring scheme using the resonance-spectrum properties of a Fabry-Perot cavity based on fiber Bragg gratings. Each cavity consists of two identical uniform fiber Bragg gratings and a varying cavity length or grating length, which can produce a unique single-mode resonance spectrum for the drop-fiber link. The output spectral properties of each cavity can be easily adjusted by the cavity length or the grating length. The resonance spectrum for each cavity is calculated by the transfer-matrix method. To obtain the peak wavelength of the resonance spectrum more accurately, the effective cavity length is introduced. Each drop fiber with a specific resonance spectrum distinguishes between the peak wavelength or linewidth. We also investigate parameters such as reflectivity and bandwidth, which determine the basic performance of the fiber Bragg grating used, and thus the output-spectrum properties of the Fabry-Perot cavity. The feasibility of the proposed scheme is verified using the Optisystem software for a simplified 1 × 8 passive optical network. The proposed scheme provides a simple, effective solution for passive-optical-network monitoring, especially for a high-density network with small end-user distance difference.

Correlation Analysis of Atmospheric Pollutants and Meteorological Factors Based on Environmental Big Data

  • Chao, Chen;Min, Byung-Won
    • International Journal of Contents
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    • v.18 no.1
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    • pp.17-26
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    • 2022
  • With the acceleration of urbanization and industrialization, air pollution has become increasingly serious, and the pollution control situation is not optimistic. Climate change has become a major global challenge faced by mankind. To actively respond to climate change, China has proposed carbon peak and carbon neutral goals. However, atmospheric pollutants and meteorological factors that affect air quality are complex and changeable, and the complex relationship and correlation between them must be further clarified. This paper uses China's 2013-2018 high-resolution air pollution reanalysis open data set, as well as statistical methods of the Pearson Correlation Coefficient (PCC) to calculate and visualize the design and analysis of environmental monitoring big data, which is intuitive and it quickly demonstrated the correlation between pollutants and meteorological factors in the temporal and spatial sequence, and provided convenience for environmental management departments to use air quality routine monitoring data to enable dynamic decision-making, and promote global climate governance. The experimental results show that, apart from ozone, which is negatively correlated, the other pollutants are positively correlated; meteorological factors have a greater impact on pollutants, temperature and pollutants are negatively correlated, air pressure is positively correlated, and the correlation between humidity is insignificant. The wind speed has a significant negative correlation with the six pollutants, which has a greater impact on the diffusion of pollutants.