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Global parasite and Rattus rodent invasions: The consequences for rodent-borne diseases

Integrative Zoology 2015年第5期10卷 409-423页

作者： Serge MORAND Frédéric BORDES hsuan-wien chen Julien CLAUDE Jean-François COSSON Maxime GALAN GáborÁCZIRJÁK Alex D GREENWOOD Alice LATINNE Johan MICHAUX Alexis RIBAS Centre National de la Recherche Scientifique(CNRS)-Centre de coopération Internationale en Recherche Agronomique pour le Développement(CIRAD)Animal et Gestion Intégrée des Risques Centre d’Infectiologie Christophe Mérieux du LaosVientianeLao PDR Department of Helminthology Faculty of Tropical MedicineMahidol UniversityBangkokThailand Institut des Sciences de l’Evolution Centre National de la Recherche Scientifique(CNRS)-Universitéde Montpellier-Institut de Recherche pour le Développement(IRD)MontpellierFrance Department of Biological Resources National Chiayi UniversityChiayi CityTaiwanChina Institut National de la Recherche Agronomique(INRA) Centre de Biologie et de Gestion des PopulationsBaillarguetFrance Institut National de la Recherche Agronomique(INRA) UMR Biologie et Immunologie Parasitaire Agence Nationale de SécuritéSanitaire de l’Alimentationde l’Environnement et du Travail sesMaisons-AlfortFrance Leibniz Institute for Zoo and Wildlife Research.Department of Wildlife Diseases 10315 BerlinGermany Conservation Genetics Unit.University of Liège 4000 Liège Belgium Biodiversity Research Group Faculty of ScienceUdon Thani Rajabhat UniversityUdon ThaniThailand

We summarize the current knowledge on parasitism-related invasion processes of the globally invasive Rattus lineages,originating from Asia,and how these invasions have impacted the local epidemiology of rodent-borne *** play an important role in the invasion processes and successes of their hosts through multiple biological mechanisms such as“parasite release,”“immunocompetence advantage,”“biotic resistance”and“novel weapon.”Parasites may also greatly increase the impact of invasions by spillover of parasites and other pathogens,introduced with invasive hosts,into new hosts,potentially leading to novel emerging *** potential impact is the ability of the invader to amplify local parasites by *** both cases,local fauna and humans may be exposed to new health risks,which may decrease biodiversity and potentially cause increases in human morbidity and *** we review the current knowledge on these processes and propose some research priorities.

关键词： biological invasion immunocompetence parasite release spillback spillover

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Stepped-up development of accelerator mass spectrometry method for the detection of ^(60)Fe with the HI-13 tandem accelerator

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Nuclear Science and Techniques 2024年第4期35卷 136-143页

作者： Yang Zhang Sheng-Quan Yan Ming He Qing-Zhang Zhao Wen-Hui Zhang Chao-Xin Kan Jian-Ming Zhou Kang-Ning Li Xiao-Fei Wang Jian-cheng Liu Zhao-Hua Peng Zhuo Liang Ai-Ling Li Jian Zheng Qi-Wen Fan Yun-Ju Li You-Bao Wang Zhi-Hong Li Yang-Ping Shen Ding Nan Wei Nan Yu-Qiang Zhang Jia-Ying-Hao Li Jun-Wen Tian Jiang-Lin Hou Chang-Xin Guo Zhi-cheng Zhang Ming-Hao Zhu Yu-Wen chen Yu-chen Jiang Tao Tian Jin-Long Ma Yi-Hui Liu Jing-Yu Dong Run-Long Liu Mei-Yue-Nan Ma Yong-Shou chen Wei-Ping Liu Bing Guo China Institute of Atomic Energy P.O.Box 275(10)Beijing 102413China College of Science Southern University of Science and TechnologyShenzhen 518055China School of Physics Xi’an Jiaotong UniversityXi’an 710049China

The Moon provides a unique environment for investigating nearby astrophysical events such as *** samples retain valuable information from these events,via detectable long-lived“fingerprint”radionuclides such as^(60)*** this work,we stepped up the development of an accelerator mass spectrometry(AMS)method for detecting^(60)Fe using the HI-13tandem accelerator at the China Institute of Atomic Energy(CIAE).Since interferences could not be sufficiently removed solely with the existing magnetic systems of the tandem accelerator and the following Q3D magnetic spectrograph,a wien filter with a maximum voltage of±60 kV and a maximum magnetic field of 0.3 T was installed after the accelerator magnetic systems to lower the detection background for the low abundance nuclide^(60)Fe.A 1μm thick Si_(3)N_(4) foil was installed in front of the Q3D as an energy *** particle detection,a multi-anode gas ionization chamber was mounted at the center of the focal plane of the ***,an^(60)Fe sample with an abundance of 1.125×10^(-10)was used to test the new AMS *** results indicate that^(60)Fe can be clearly distinguished from the isobar^(60)*** sensitivity was assessed to be better than 4.3×10^(-14)based on blank sample measurements lasting 5.8 h,and the sensitivity could,in principle,be expected to be approximately 2.5×10^(-15)when the data were accumulated for 100 h,which is feasible for future lunar sample measurements because the main contaminants were sufficiently separated.

关键词： Accelerator mass spectrometry wien filter Isobar separation Supernovae Chang'e-5 lunar samples

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Predicting stable crystalline compounds using chemical similarity

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npj Computational Materials 2021年第1期7卷 99-107页

作者： Hai-chen Wang Silvana Botti Miguel A.L.Marques Institut für Physik Martin-Luther-Universität Halle-Wittenberg06120 Halle(Saale)Germany Institut für Festkörpertheorie und-Optik Friedrich-Schiller-Universität Jena and European Theoretical Spectroscopy FacilityMax-Wien-Platz 107743 JenaGermany

We propose an efficient high-throughput scheme for the discovery of stable crystalline *** approach is based on the transmutation of known compounds,through the substitution of atoms in the crystal structure with chemically similar *** concept of similarity is defined quantitatively using a measure of chemical replaceability,extracted by data-mining experimental *** this way we build 189,981 possible crystal phases,including 18,479 that are on the convex hull of *** resulting success rate of 9.72%is at least one order of magnitude better than the usual success rate of systematic high-throughput calculations for a specific family of materials,and comparable with speed-up factors of machine learning filtering *** a characterization of the set of 18,479 stable compounds,we calculate their electronic band gaps,magnetic moments,and *** approach,that can be used as a filter on top of any high-throughput scheme,enables us to efficiently extract stable compounds from tremendously large initial sets,without any initial assumption on their crystal structures or chemical compositions.

关键词： stability similarity crystalline

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DEFORMATION AND RECRYSTALLIZATION OF (110) [001] SINGLE CRYSTALS OF AN IRON SILICON ALLOY

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物理学报 1960年第6期 365-365页

作者： WANG wien-MIN CHOU PANG-HSIN chen NENG-KUAN

Plastic deformation and recrystallization were studied in single crystals of an iron siliconalloy with silicon content of 3.25%.The initial orientations were near (110) [001] andthe amount of reduction after rolling was in the range of 5-50%.At an early stageof rolling(2-16%),slip planes were determined to be(101),(101),(011)and(011);twinning planes were determined to be (112)and(112).On the basis of these obser-vations,the origin of cold-rolling texture of single crystals with inital orientations near(110)[001]can be satisfactorily explained. Characteristics of the formation and growth of new grains were studied after successivestages of *** was observed that,in specimens with a reduction of 35%, theformation and growth of new grains along twin boundaries were preferred;while in specimenswith a reduction of 50%,the tendency of preferred growth was not so *** were found along twinning planes,deformation bands and also at other places witha high concentration of substructures.

关键词： 110 DEFORMATION AND RECRYSTALLIZATION OF SINGLE CRYSTALS OF AN IRON SILICON ALLOY

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Superfluid-Mott-Insulator Transition in an Optical Lattice with Adjustable Ensemble-Averaged Filling Factors

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Chinese Physics Letters 2020年第4期37卷 5-8页

作者： Shifeng Yang Tianwei Zhou chen Li Kaixiang Yang Yueyang Zhai Xuguang Yue Xuzong chen School of Electronics Engineering and Computer Science Peking UniversityBeijing 100871 Vienna Center for Quantum Science and Technology AtominstitutTU-WienStadionallee 21020 ViennaAustria Innovative Research Institute of Frontier Science and Technology Beihang UniversityBeijing 100191 Wuhan National Laboratory for Optoelectronics(WNLO) Wuhan 430074

We study the quantum phase transition from a superfluid to a Mott insulator of ultracold atoms in a threedimensional optical lattice with adjustable filling *** on the density-adjustable Bose-Einstein condensate we prepared,the excitation spectrum in the superfluid and the Mott insulator regime is measured with different ensemble-averaged filling *** show that for the superfluid phase,the center of the excitation spectrum is positively correlated with the ensemble-averaged filling factor,indicating a higher sound speed of the *** the Mott insulator phase,the discrete feature of the excitation spectrum becomes less pronounced as the ensemble-averaged filling factor increases,implying that it is harder for the system to enter the Mott insulator regime with higher filling *** ability to manipulate the filling factor affords further potential in performing quantum simulation with cold atoms trapped in optical lattices.

关键词： excitation spectrum quantum

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Computational screening of materials with extreme gap deformation potentials

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npj Computational Materials 2022年第1期8卷 1482-1491页

作者： Pedro Borlido Jonathan Schmidt Hai-chen Wang Silvana Botti Miguel A.L.Marques Institut für Festkörpertheorie und-optik Friedrich-Schiller-Universität Jena and European Theoretical Spectroscopy FacilityMax-Wien-Platz 107743JenaGermany CFisUC Department of PhysicsUniversity of CoimbraRua Larga3004-516CoimbraPortugal Institut für Physik Martin-Luther-Universität Halle-WittenbergD-06099HalleGermany

In this work,we present a large-scale study of gap deformation potentials based on density-functional theory calculations for over 5000 *** expected,in most cases the band gap decreases for increasing volume with deformation potentials that can reach values of almost−15 *** find,however,also a sizeable number of materials with positive deformation *** members of this group are halide perovskites,known for their applications in *** then focus on understanding the physical reasons for so different values of the deformation potentials by investigating the correlations between this property and a large number of other material and compositional *** also train explainable machine learning models as well as graph convolutional networks to predict deformation potentials and establish simple rules to understand predicted ***,we analyze in more detail a series of materials that have record positive and negative deformation potentials.

关键词： deformation properties. extreme

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Mobile Web Augmented Reality in 5G and Beyond:Challenges, Opportunities, and Future Directions

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China Communications 2019年第9期16卷 141-154页

作者： Xiuquan Qiao Pei Ren Guoshun Nan Ling Liu Schahram Dustdar Junliang chen State Key Laboratory of Networking and Switching Technology Beijing University of Posts and TelecommunicationsBeijing 100876China College of Computing Georgia Institute of TechnologyAtlantaGA 30332USA Distributed Systems Group TU Wien1040 ViennaAustria

The popularity of wearable devices and smartphones has fueled the development of Mobile Augmented Reality(MAR),which provides immersive experiences over the real world using techniques,such as computer vision and deep ***,the hardware-specific MAR is costly and heavy,and the App-based MAR requires an additional download and installation and it also lacks cross-platform *** limitations hamper the pervasive promotion of *** paper argues that mobile Web AR(MWAR)holds the potential to become a practical and pervasive solution that can effectively scale to millions of end-users because MWAR can be developed as a lightweight,cross-platform,and low-cost solution for end-to-end delivery of *** main challenges for making MWAR a reality lie in the low efficiency for dense computing in Web browsers,a large delay for real-time interactions over mobile networks,and the lack of *** good news is that the newly emerging 5G and Beyond 5G(B5G)cellular networks can mitigate these issues to some extent via techniques such as network slicing,device-to-device communication,and mobile edge *** this paper,we first give an overview of the challenges and opportunities of MWAR in the 5G *** we describe our design and development of a generic service-oriented framework(called MWAR5)to provide a scalable,flexible,and easy to deploy MWAR *** evaluate the performance of our MWAR5 system in an actually deployed 5G trial network under the collaborative configurations,which shows encouraging ***,we also share the experiences and insights from our development and deployment,including some exciting future directions of MWAR over 5G and B5G networks.

关键词： 5G edge computing augmentedreality mobile augmented reality Web augmentedreality

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Asymmetric interfaces and high-TC ferromagnetic phase in La_(0.67)Ca_(0.33)MnO_(3)/SrRuO_(3)superlattices

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Nano Research 2021年第10期14卷 3621-3628页

作者： Lili Qu Da Lan Liang Si Chao Ma Shasha Wang Liqiang Xu Kexuan Zhang Feng Jin Zixun Zhang Enda Hua Binbin chen Guanyin Gao Feng chen Haifeng Du Karsten Held Lingfei Wang Wenbin Wu Hefei National Laboratory for Physical Science at the Microscale University of Science and Technology of ChinaHefei 230026China Institut fur Festkorperphysik TU Wien1040 ViennaAustria College of Materials Science and Engineering Hunan UniversityChangsha 410082China Anhui Key Laboratory of Condensed Matter Physics at the Extreme Conditions High Magnetic Field Laboratory and Hefei Science CenterChinese Academy of SciencesHefei 230031China Insititutes of Physical Science and Information Technology Anhui UniversityHefei 230601China

Interfacial magnetism in functional oxide heterostructures not only exhibits intriguing physical phenomena but also implies great potential for device *** these systems,interfacial structural and electronic reconstructions are essential for improving the stability and tunability of the magnetic *** this work,we constructed ultra-thinLa_(0.67)Ca_(0.33)MnO_(3)/SrRuO_(3)(SRO)layers into superlattices,which exhibited a robust ferromagnetic *** high Curie temperature(TC)reaches 291 K,more than 30 K higher than that of bulk *** found that the LCMO/SRO superlattices consisted of atomically-sharp and asymmetric *** a unique interface structure can trigger a sizable charge transfer as well as a ferroelectric-like polar *** two interfacial effects cooperatively stabilized the high-T_(C)ferromagnetic *** results could pave a promising approach towards effective control of interfacial magnetism and new designs of oxide-based spintronic devices.

关键词： oxide heterointerfaces asymmetric interfacial effects ferromagnetic order charge transfer

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Variation in floral characters,particularly floral scent,in sapromyophilous Stemona species

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Journal of Integrative Plant Biology 2017年第11期59卷 825-839页

作者： Gao chen Wei-Chang Gong Jia Ge Johann Schinnerl Bin Wang Wei-Bang Sun Kunming Botanical Garden Kunming Institute of BotanyChinese Academy of SciencesKunming 650201China Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of SciencesKunming 650201China College of Life Science and Technology Honghe UniversityMengzi 661199China Department of Botany and Biodiversity Research Division of Systematic and Evolutionary BotanyUniversity of ViennaA-Io3o WienRennweg 14Austria University of Chinese Academy of Sciences Beijing 100049China

Flowers or inflorescences often deploy various signals, including visual, olfactory, and gustatory cues,that can be detected by their pollinators. In many plants,these cues and their functions are poorly *** the interactions between floral cues and pollinators is crucial for analyzing the reproductive success of flowering plants. In this study, we examined the composition of the fetid floral scents produced by several Stemona species, including nine S. tuberosa populations from across China, using dynamic headspace adsorption, gas chromatography, and mass spectrometry techniques. We compared variations in floral phenotype,including floral longevity, nectar rewards, pollinator behavior, and flower length and color among the Stemona species. Of the 54 scent compounds identified,the major compounds include fetid dimethyl disulfide,dimethyl trisulfide, 1-pyrroline, butyric acid, p-cresol,isoamyl alcohol, and indole. We detected striking differentiation in floral scent at both the species and population level, and even within a population of plants with different colored flowers. Floral characteristics related to sapromyophily and deceptive pollination,including flower color mimicking livor mortis and a lack of nectar, were found in five Stemona species, indicating that Stemona is a typical sapromyophilous taxon. Species of this monocot genus might employ evolutionary tactics to exploit saprophilous flies for pollination.

关键词： Variation in floral characters, particularly florascent sapromyophilous Stemona species

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铁硅合金中立方织构的形成

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物理学报 1960年第3期 155-159页

作者：周邦新王维敏陈能宽中国科学院

铁硅合金(含硅3.25％)的样品,经过不同的冷轧和中间退火程序,在最后高温退火时,可以通过二次再结晶,或者一次再结晶形成集中的立方织构。通过二次再结晶形成立方织构时,并不包括重新形核的过程。(100)取向的二次再结晶“晶核”,在一次... 详细信息

铁硅合金(含硅3.25％)的样品,经过不同的冷轧和中间退火程序,在最后高温退火时,可以通过二次再结晶,或者一次再结晶形成集中的立方织构。通过二次再结晶形成立方织构时,并不包括重新形核的过程。(100)取向的二次再结晶“晶核”,在一次再结晶完成后,就已经存在。通过一次再结晶形成的立方织构,由于样品在冷轧后,得到了较强的加工立方织构,退火时通过同位再结晶,就得到了再结晶立方织构。

关键词：立方织构铁硅合金再结晶

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