Genetic homogeneity between populations of cotton bollworm from Xinjiang, China

Dongmei Wang,Xianming Yang,Haiqiang Li,Akedan Wuwaishi,Ruifeng Ding,Haobin Li,Hongsheng Pan,Jian Liu,Yao Xu,Yan-Hui Lu 한국응용곤충학회 2018 Journal of Asia-Pacific Entomology Vol.21 No.1

We studied the population structure of cotton bollworm (CBW), Helicoverpa armigera (Hübner) (Lepidoptera:Noctuidae), in Xinjiang, the largest cotton-growing region in China, using a fragment of cytochrome c oxidasesubunit I (COI) gene. Alignments of all 192 COI sequences revealed 28 haplotypes including 23 in southernXinjiang, 5 in eastern Xinjiang and 13 in northern Xinjiang. Negative and significant values of neutrality tests forthe Tajima's D and Fu's FS parameters, combined with the high values of haplotype diversity (Hd), low values ofnucleotide diversity (π) and a high number of low frequency haplotypes indicated a recent demographic expansionof Xinjiang CBW populations. Analysis of molecular variation (AMOVA) indicated low and non-significantgenetic structure, regardless of geographical scale or crop, with most of genetic variation occurringwithin local CBW populations. Pairwise FST analyses also indicated low genetic differentiation. This demographicevent and high gene flow could be responsible for the low genetic structure currently found. CBW populations inXinjiang need to be considered as one panmictic unit in its management, especially for the design of refuges todelay the development of resistance by this migratory pest to transgenic Bt (Bacillus thuringiensis) cotton.

Emericella spp . in Soils of North China

( Li Dongmei,Wang Duanli,Li Ryoyu,Wang Xiaohong ) 한국균학회 1997 97 KOREA CHINA JOINT SYMPOSIUM Vol.- No.-

Financial ESG and Corporate Sustainable Development: the Moderating Effect of Attention

Dongmei Li 한국디지털정책학회 2023 디지털정책학회지 Vol.2 No.1

ESG는 기업 환경, 사회적 책임 및 기업 거버넌스에 더 많은 관심을 기울이는 재무 데이터이다.이 연구 는 실증 분석을 통해 ESG와 기업의 지속 가능한 발전 사이의 관계를 탐구한다.이 연구는 2015-2020년 중국 A주 상장 기업의 데이터에 대한 실증 연구를 수행하기 위해 고정 효과 회귀 방법을 사용한다.연구 결과에 따르 면 ESG가 잘 수행되면 기업의 지속 가능한 발전을 촉진할 수 있다.동시에 관심이 높을수록 ESG 성능이 우수할 수록 기업의 지속 가능한 발전 능력을 촉진할 수 있다.이 연구는 ESG에 대한 관련 연구를 풍부하게 하고 기업 의 지속 가능한 발전을 촉진하는 데 일정한 참고 가치가 있다. ESG is a kind of financial data that pays more attention to corporate environment, social responsibility and corporate governance. This study explores the relationship between ESG and corporate sustainable development through empirical analysis. This study uses the regression method of fixed effects to conduct empirical research on the data of China's A-share listed companies from 2015 to 2020. The research results show that: good ESG performance can promote the sustainable development of enterprises. At the same time, the higher the attention, the better the ESG performance can promote the sustainable development of enterprises. This study enriches the related research on ESG and has certain reference value for promoting the sustainable development of enterprises.

Wnt/β-catenin interacts with the FGF pathway to promote proliferation and regenerative cell proliferation in the zebrafish lateral line neuromast

Dongmei Tang,Yingzi He,Wenyan Li,Huawei Li 생화학분자생물학회 2019 Experimental and molecular medicine Vol.51 No.-

Wnt and FGF are highly conserved signaling pathways found in various organs and have been identified as important regulators of auditory organ development. In this study, we used the zebrafish lateral line system to study the cooperative roles of the Wnt and FGF pathways in regulating progenitor cell proliferation and regenerative cell proliferation. We found that activation of Wnt signaling induced cell proliferation and increased the number of hair cells in both developing and regenerating neuromasts. We further demonstrated that FGF signaling was critically involved in Wnt-regulated proliferation, and inhibition of FGF abolished the Wnt stimulation-mediated effects on cell proliferation, while activating FGF signaling with basic fibroblast growth factor (bFGF) led to a partial rescue of the proliferative failure and hair cell defects in the absence of Wnt activity. Whole-mount in situ hybridization analysis showed that the expression of several FGF pathway genes, including pea3 and fgfr1, was increased in neuromasts after treatment with the Wnt pathway inducer BIO. Interestingly, when SU5402 was used to inhibit FGF signaling, neuromast cells expressed much lower levels of the FGF receptor gene, fgfr1, but produced increased levels of Wnt target genes, including ctnnb1, ctnnb2, and tcf7l2, while bFGF treatment produced no alterations in the expression of those genes, suggesting that fgfr1 might restrict Wnt signaling in neuromasts during proliferation. In summary, our analysis demonstrates that both the Wnt and FGF pathways are tightly integrated to modulate the proliferation of progenitor cells during early neuromast development and regenerative cell proliferation after neomycin-induced injury in the zebrafish neuromast.

SIGNAL CONSTELLATION DESIGN

Dongmei Li,Don H. Johnson 한국통신학회 1995 Asia-Pacific Conference on Communications Vol.1 No.1

동아시아의 예로센코 현상

이동매 ( Li Dongmei ) 인하대학교 한국학연구소 2017 한국학연구 Vol.0 No.45

예로센코는 러시아 맹인시인으로 1910~1920년대 에스페란티스트로 동아시아에서 문학 활동을 전개하였다. 그는 일본에서 아키타 우자쿠 와 나카무라 쓰네 등과 교류하면서 ‘나카무라야(中村屋)’의 중심인물이 되었다. 그러나 공산주의자라는 혐의로 일본에서 추방된 후에는 중국으로 건너가 루쉰과 주작인의 집에 머물면서 중국, 조선 그리고 일본지식인과 매우 긴밀한 관계를 유지하였다. 그는 조선에 가본 적이 없지만 지속적으로 일본의 조선침략을 비판하였다. 때문에 그는 이상, 염상섭 그리고 박영희 등 조선지식인으로부터 많은 주목을 받았다. 예로센코가 지속적으로 조선을 언급한 것은 그가 사회진화론의 약육강식이라는 부정적인 측면을 반대하는 입장과 무관하지 않다. 1차 세계대전을 겪고 나서 예로센코는 상호부조론을 선명하게 주장하게 되었다. 초민족적 상호부조에 대한 예로센코의 주장은 동아시아 지식인으로부터 공감을 받았던 것이다. 1910-1920年代, 俄罗斯盲诗人爱罗先珂曾作为世界语者活跃在东亚各国。在日本, 他与秋田雨雀等人交游并成为了“中村屋”的核心人物;因共产主义嫌疑被日本警察驱逐后来到中国, 在鲁迅与周作人家居住期间, 与中国、韩国、日本知识人保持了密切友好的关系。他不断批判日本对朝鲜的侵略, 因此, 得到了李箱、廉想涉等人的关注。爱罗先珂一直关注朝鲜与他反对社会进化论中的弱肉强食等不合理成分有关。经历了第一次世界大战后, 爱罗先珂开始鲜明地主张相互扶助论。他主张超民族的相互扶助, 因此得到了东亚知识人的共鸣。

Effect of a cotton intercrop on spider mite populations in jujube trees

Haiqiang Li,Qian Li,Dongmei Wang,Jian Liu,Jianping Zhang,Yan-Hui Lu 한국응용곤충학회 2020 Journal of Asia-Pacific Entomology Vol.23 No.1

In the arid and semi-arid parts of Xinjiang (China), jujube (Zizyphus jujube Mill) orchards are regularly intercropped with cotton. In 2016–2017, a field study was conducted to compare the species composition and infestation pressure of spider mites in local jujube trees under a cotton-jujube intercropping system and a jujube monocrop system. Our results showed that Tetranychus truncatus Ehara accounted for 94.2–98.5% of all spider mites in either cropping systems. Overall abundance of tree-inhabiting spider mites, including T. truncatus, in intercropped orchards was generally higher than in monocrop ones. Combining our work with earlier findings, we demonstrate how intercropping of cotton and jujube trees generally increases population levels of spider mites on either crop.

Heterogeneously Integrated Thin-film Lithium Niobate Electro-optic Modulator Based on Slot Structure

Xiaowei Li,Yin Xu,Dongmei Huang,Feng Li,Bo Zhang,Yue Dong,Yi Ni 한국광학회 2022 Current Optics and Photonics Vol.6 No.3

Electro-optic modulator (EOM) takes a vital role in connecting the electric and optical fields. Here, we present a heterogeneously integrated EOM based on the lithium niobate-on-insulator (LNOI) platform. The key modulation waveguide structure is a field-enhanced slot waveguide formed by embedding silicon nanowires in a thin-film lithium niobate (LN), which is different from the previously reported LN ridge or etchless LN waveguides. Based on such slot structure, optical mode field area is reduced and enhanced electric field in the slot region can interact well with LN material with high Electro-optic (EO) coefficient. Therefore, the improvements in both aspects have positive effects on enhancing the modulation performance. From results, the corresponding EOM by adding such modulation waveguide structure achieves better performance, where the key half-wave-voltage-length product (V π L) and 3 dBEO bandwidth are 1.78 V · cm and 40 GHz under the electrode gap width of only 6 μm, respectively. Moreover, Lower V π L can also be achieved. With these characteristics, such field-enhanced waveguide structure could further promote the development of LNOI-based EOM.

Efficient Metric Vector-Based Code Clone Detection Using Function-calling Tree

Wei Li,Dongmei Li,Chengjing Qiu,Jiajia Hou 보안공학연구지원센터 2015 International Journal of Hybrid Information Techno Vol.8 No.11

Most traditional code clone detections have less accurate results because they ignore the structure of the program itself, and some of them really think about it by creating a complex syntax tree but leading to a high time complexity. Confronting such situation, this paper proposes an efficient metric vector-based code clone detection method using function-calling tree. Considering the two program code to be detected, feature vectors in all defined functions of the two different code are extracted first. Then, two function-calling trees are created according to the function-calling process and node matches each other between two trees, at the same time, the matching similarities are calculated. Finally, by using the bottom-up approach and combining similarity values of all child nodes, the detection can get the similarity of the two program code to be detected. Our experiment selects a set of typical code sample to measure and the results demonstrate that, compared the famous JPlag system, it shows better detection effect.

A New Multi-objective Evolutionary Algorithm for Inter-Cloud Service Composition

( Li Liu ),( Shuxian Gu ),( Dongmei Fu ),( Miao Zhang ),( Rajkumar Buyya ) 한국인터넷정보학회 2018 KSII Transactions on Internet and Information Syst Vol.12 No.1

Service composition in the Inter-Cloud raises new challenges that are caused by the different Quality of Service (QoS) requirements of the users, which are served by different geo-distributed Cloud providers. This paper aims to explore how to select and compose such services while considering how to reach high efficiency on cost and response time, low network latency, and high reliability across multiple Cloud providers. A new hybrid multi-objective evolutionary algorithm to perform the above task called LS-NSGA-II-DE is proposed, in which the differential evolution (DE) algorithm uses the adaptive mutation operator and crossover operator to replace the those of the Non-dominated Sorting Genetic Algorithm-II (NSGA-II) to get the better convergence and diversity. At the same time, a Local Search (LS) method is performed for the Non-dominated solution set F{1} in each generation to improve the distribution of the F{1}. The simulation results show that our proposed algorithm performs well in terms of the solution distribution and convergence, and in addition, the optimality ability and scalability are better compared with those of the other algorithms.