检索结果-南通市图书馆

Octopaminergic neurons function in appetitive but not aversive olfactory learning and memory in Bactrocera dorsalis

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Insect Science 2022年第6期29卷 1747-1760页

作者： Jin-Xin Yu Qian Xiang jia-Bao qu Yan-Min Hui Tao lin Xin-Nian Zeng jia-li liu Guangdong Engineering Research Center for Insect Behavior Regulation College of Plant ProtectionSouth China Agricultural UniversityGuangzhouGuangdongChina College of life Sciences Department of Biological ScienceShangrao Normal UniversityShangraoJiangxiChina

The biogenic amine octopamine(OA,invertebrate counterpart of nora-drenaline)plays critical roles in the regulation of olfactory ***,OA has been thought to mediate appetitive but not aversive learning in honeybees,fruit flies(Drosophila),and ***,this viewpoint has recently been challenged because OA activity through aβ-adrenergic-like receptor drives both appetitive and aversive ***,we explored the roles of OA neurons in olfactory learning and memory retrieval in Bactrocera *** trained flies to associate an orange odor with a sucrose reward or to associate methyl eugenol,a male lure,with N,N-diethyl-3-methyl benzoyl amide(DEET)*** then treated flies with OA receptor antagonists before appetitive or aversive conditioning and a memory retention *** of OA receptor antagonist mianserin or epinastine into the abdomen of flies led to impaired of appetitive learning and memory retention with a sucrose reward,while aversive learning and memory reten-tion with DEET punishment remained *** results suggest that the OA signaling participates in appetitive but not aversive learning and memory retrieval in *** through OA receptors.

关键词： appetitive aversive Bactrocera dorsalis learning and memory octopamine

Enhanced simultaneous absorption of NO_(x) and SO_(2) in oxidation-reduction-absorption process with a compounded system based on Na_(2)SO_(3)

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Journal of Environmental Sciences 2022年第1期34卷 1-10页

作者： Sichao li Wenjun Huang Haomiao Xu Kai liu jia-nan Wang Yaning Sun Zan qu Naiqiang Yan School of Environmental Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240China Jinan Motor Vehicle Pollution Prevention and Control Center(Jinan Ecological Environment Information Center) Jinan 250000China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China

Oxidation of sulfite and competitive absorption existed in Na_(2)SO_(3) solution for simultaneous removal of NO_(x) and SO_(2),inhibited the long-term high-efficiency when used for practical applications.A matching strategy was developed to solve these *** combination was used to retard the oxidation of antioxidant and enhance inhibition of S(IV)(tetravalent sulfur)***(HQ)and sodium thiosulfate(ST)showed a positive synergistic effect on inhibition of S(IV)*** SO_(2) concentration was 500 and 2000 ppmV,the addition of 0.1 wt.%HQ and 1 wt.%ST decreased the percentage of S(IV)oxidized by oxygen by over 30%and 40%,***(Na_(2)CO_(3))alleviated the competitive absorption between NO_(x) and SO_(2).Moreover,Na_(2)CO_(3) exhibited an enhancement effect on the absorption of NO_(x) and SO_(2) when coupled with *** the increase of oxygen pressure accelerated the oxidation of S(IV),the anti-oxidants can retard the *** measurement of pH suggested the removal efficiency of NO_(x) highly depended on SO_(3)^(2-) concentration rather than *** further investigation of the mechanism suggested the match effect was related to the interaction between ST and the intermediate product of *** match strategy holds a potential for application of SO_(3)^(2-) to denitration.

关键词： Denitration Non-ferrous metal smelting flue gas Oxidation inhibition Oxidation-reduction-absorption Synergistic effect

Elasticity-based-exfoliability measure for high-throughput computational exfoliation of two-dimensional materials

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npj Computational Materials 2021年第1期7卷 1941-1948页

作者： Xiangzheng jia Qian Shao Yongchun Xu Ruishan li Kai Huang Yongzhe Guo Cangyu qu Enlai Gao Department of Engineering Mechanics School of Civil EngineeringWuhan UniversityWuhanHubei 430072China Institute of Superlubricity Technology.Research Institute of Tsinghua University in Shenzhen Shenzhen 518057China State Key Laboratory of Water Resources and Hydropower Engineering Science Wuhan UniversityWuhan 430072China

Two-dimensional(2D)materials are promising candidates for uses in next-generation electronic and optoelectronic ***,only a few high-quality 2D materials have been mechanically exfoliated to *** of the critical issues is that the exfoliability of 2D materials from their bulk precursors is *** assess the exfoliability of potential 2D materials from their bulk counterparts,we derived an elasticity-based-exfoliability measure based on an exfoliation mechanics *** proposed measure has a clear physical meaning and is universally applicable to all material *** used this measure to calculate the exfoliability of 10,812 crystals having a first-principles calculated elastic *** setting the threshold values for easy and potential exfoliation based on already-exfoliated materials,we predicted 58 easily exfoliable bulk crystals and 90 potentially exfoliable bulk crystals for 2D *** evidence,a topology-based algorithm indicates that there is no interlayer bondingtopology for 93%predicted exfoliable bulk crystals,and the analysis on packing ratios shows that 99%predicted exfoliable bulk crystals exhibit a relatively low packing ratio ***,literature survey shows that 34 predicted exfoliable bulk crystals have been experimentally exfoliated into 2D *** addition,the characteristics of these predicted 2D materials were discussed for practical use of such materials.

关键词： materials packing dimensional

The effect of hydrodynamics alone on the subhalo population in aΛCDM rich cluster sized dark matter halo

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Research in Astronomy and Astrophysics 2020年第11期20卷 213-221页

作者： Jun-Yi jia liang Gao Yan qu Key Laboratory for Computational Astrophysics National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China School of Astronomy and Space Science University of Chinese Academy of SciencesBeijing 100049China Institute of Computational Cosmology Department of PhysicsUniversity of DurhamSouth RoadDurham DH13LEUK

We perform a set of non-radiative hydro-dynamical(NHD)simulations of a rich cluster sized dark matter halo from the Phoenix Project with three different numerical resolutions,to investigate the effect of hydrodynamics alone on the subhalo population in the *** to dark matter only(DMO)simulations of the same halo,subhaloes are less abundant for relatively massive subhaloes(Msub>2.5×109h 1M⊙,or Vmax>70 km s 1)but more abundant for less massive subhaloes in the NHD *** results in different shapes in the subhalo mass/Vmax function in two different sets of *** given subhalo mass,the subhaloes less massive than 1010h 1M⊙have larger Vmax in the NHD than DMO simulations,while Vmax is similar for the subhaloes more massive than the mass *** is mainly because the progenitors of present day low mass subhaloes have larger concentration parameters in the NHD than DMO *** survival number fraction of the accreted low mass progenitors of the main halo at redshift 2 is about 50 percent higher in the NHD than DMO simulations.

关键词： cosmology baryon-methods numerical

Synchronous Dynamic Research on Respiratory and Intestinal Microflora of Chronic Bronchitis Rat Model

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Chinese Journal of Integrative Medicine 2017年第3期23卷 196-200页

作者： ZHENG Xiu-li YANG Yu WANG Bao-jia WANG Ju TANG Hong-qu College of Basic Medicine Chengdu University of Traditional Chinese Medicine

Objective： To investigate the mechanism of the Chinese medicine theory that Fei（Lung） and Dachang（Large Intestine） are exteriorly and interiorly related via synchronous observation on the dynamic changes of the respiratory and intestinal microflora. Methods： Forty specific pathogen free Sprague-Dawley rats were selected and randomly divided into blank（10 rats） and chronic bronchitis model groups（30 rats）. The blank group rats were put into the smoke-free environment and the model group rats were put into the smoke environment in order to establish pulmonary disease（chronic bronchitis） model. Then the corresponding changes of the respiratory and intestinal microflora of the model on 20th, 50th and 70th days were synchronously observed. Results： The respiratory tract microflora showed an increase in the total aerobic and Staphylococcus aureus and reduced anaerobic amount significantly on 20th day in the respiratory tract microflora（P〈0.05 or 0.01）. On 50th day, total aerobic, total anaerobic amount and bifidobacterium significantly increased（P〈0.05）. On 70th day, Staphylococcus aureus reduced and lactobacillus increased significantly（P〈0.01）. The intestinal microflora showed an increase in the total aerobic, Clostridium perfringens, enterobacter and enterococcus significantly increased on 20th day（P〈0.05 or 0.01）. Staphylococcus aureus on 50th day increased significantly（P〈0.05）. Total aerobic and enterococcus increased, total anaerobic and Clostridium perfringens reduced significantly on 70th day（P〈0.05 or 0.01）. Conclusions： The microecosystem of respiratory tract and intestine of rat model during the pathological process showed a dynamic disorder, indicating an interaction between the lung and large intestine which may be one of the connotations as they exteriorly and interiorly related.

关键词： respiratory intestinal pulmonary disease microflora micro-ecology chronic bronchitis Chinese medicine theory

基于建构主义的“信息素养与检索实践”课程思政元素挖掘与实践

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大学图书情报学刊 2025年第1期43卷 79-85页

作者：袁帆李佳上海第二工业大学图书馆 201209 华东师范大学课程与教学研究所上海200062

文章基于建构主义理论探讨在“信息素养与检索实践”课程中如何融入思政元素,以期提升新时代高校学生信息素养及思想政治素养。通过案例教学与项目教学法挖掘课程思政元素,以能力和知识目标为抓手,构建思政元素融入信息素养教育的研究... 详细信息

文章基于建构主义理论探讨在“信息素养与检索实践”课程中如何融入思政元素,以期提升新时代高校学生信息素养及思想政治素养。通过案例教学与项目教学法挖掘课程思政元素,以能力和知识目标为抓手,构建思政元素融入信息素养教育的研究体系。研究表明,政治认同、家国情怀、科学精神及信息道德是培育课程思政的关键要素,是促进高校信息素养教学质量发展的核心指标。建立以创设问题情境、引导自主探究为主的课程思政实践机制,有助于增强独立思考与批判分析能力,提升学生的信息处理能力。研究为高校图书馆信息素养教育实现立德树人目标提供了教学策略和研究启示。

关键词：信息素养文献检索课程思政建构主义

Synergistic impacts of anthropogenic and biogenic emissions on summer surface O_3 in East Asia

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Journal of Environmental Sciences 2013年第3期25卷 520-530页

作者： Yu qu Junling An jian li State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric PhysicsChinese Academy of Sciences

A factor separation technique and an improved regional air quality model （RAQM） were applied to calculate synergistic contributions of anthropogenic volatile organic compounds （AVOCs）,biogenic volatile organic compounds （BVOCs） and nitrogen oxides （NOx） to daily maximum surface O3（O3DM） concentrations in East Asia in summer （June to August 2000）.The summer averaged synergistic impacts of AVOCs and NOx are dominant in most areas of North China,with a maximum of 60 ppbv,while those of BVOCs and NOx are notable only in some limited areas with high BVOC emissions in South China,with a maximum of 25 *** result implies that BVOCs contribute much less to summer averaged O3DM concentrations than AVOCs in most areas of East Asia at a coarse spatial resolution （1×1） although global emissions of BVOCs are much greater than those of *** maximum total contributions of BVOCs can approach 20 ppbv in North China,but they can reach 40 ppbv in South China,approaching or exceeding those in some developed countries in Europe and North *** emissions in such special areas should be considered when O3 control measures are *** contributions among AVOCs,BVOCs and NOx significantly enhance O3 concentrations in the Beijing-Tianjin-Tangshan region and decrease them in some areas in South ***,the total contributions of BVOCs to O3DM vary significantly from day to day and from location to *** result suggests that O3 control measures obtained from episodic studies could be limited for long-term applications.

关键词： regional air quality model volatile organic compounds O3 factor separation technique synergistic contribution

Frequency-modulated continuous-wave multiplexed gas sensingbased on optical frequency comb calibration

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Chinese Physics B 2024年第9期33卷 152-163页

作者： linhua jia Xinghua qu Fumin Zhang State Key Laboratory of Precision Measurement Technology and Instruments Tianjin UniversityTianjin 300072China

Laser absorption spectroscopy has proven to be an effective approach for gas sensing, which plays an important rolein the fields of military, industry, medicine and basic research. This paper presents a multiplexed gas sensing system basedon optical frequency comb (OFC) calibrated frequency-modulated continuous-wave (FMCW) tuning nonlinearity. Thesystem can be used for multi-parameter synchronous measurement of gas absorption spectrum and multiplexed opticalpath. Multi-channel parallel detection is realized by combining wavelength division multiplexing (WDM) and frequencydivision multiplexing (FDM) techniques. By introducing nonlinear optical crystals, broadband spectrum detection is simultaneouslyachieved over a bandwidth of hundreds of nanometers. An OFC with ultra-high frequency stability is used asthe frequency calibration source, which guarantees the measurement accuracy. The test samples involve H13C14N, C_(2)H_(2)and Rb vapor cells of varying densities and 5 parallel measurement experiments are designed. The results show that themeasurement accuracies of spectral absorption line and the optical path are 150 MHz and 20 m, respectively. The schemeoffers the advantages of multiplexed, multi-parameter, wide spectrum and high resolution detection, which can realize theidentification of multi-gas components and the high-precision inversion of absorption lines under different *** proposed sensor demonstrates great potential in the field of high-resolution absorption spectrum measurement for gassensing applications.

关键词： frequency-modulated continuous-wave(FMCW)technology optical frequency comb multiplexing absorption spectroscopy

Recent advances in new-type molecular switches

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Science China Chemistry 2015年第6期58卷 916-921页

作者： Hong li Da-Hui qu Key Laboratory for Advanced Materials and Institute of Fine Chemicals East China University of Science & Technology

Molecular switches that can undergo reversible switching between two or more different states in response to external stimuli have been used in the fabrication of various optoelectronic devices and smart materials for many decades, and also found many applications in sensing, molecular self-assembly and photo-controlled biological systems. Recently, mechanically interlocked molecules, such as rotaxanes and catenanes, and molecular rotary motors based on overcrowded alkenes have emerged as two new kinds of molecular switches. Some novel applications of above-mentioned molecular switches have been discovered. In this mini review, we mainly highlight noticeable achievements over the past decade in this field, and summarize the applications of new types of molecular switches, for instance, controlling the chiral space to regulate catalytic reaction as organocatalysts, controlling molecular motions, synthesizing a peptide in a sequence-specific manner and modulating the wettability of the self-assembled monolayers.

关键词： molecular switches rotaxane molecular motor stimuli-responsive function