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BMLP:behavior-aware MLP for heterogeneous sequential recommendation

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Frontiers of Computer Science 2024年第3期18卷 235-237页

作者： Weixin LI Yuhao WU Yang LIU Weike PAN Zhong MING College of Computer Science and Software Engineering Shenzhen UniversityShenzhen 518060China Guangdong Laboratory of Artificial Intelligence and Digital Economy(SZ) Shenzhen 518123China

1 Introduction Recommender systems can effectively alleviate the problem of information ***,traditional recommendation methods cannot capture users’dynamic *** recommendation methods model user sequences to obtain more accurate and dynamic user ***,deep learning-based sequential recommendation methods have achieved great *** is proposed to capture the sequential information[1,2].Attention-based methods[3]use attention mechanisms to learn relationships between ***-based methods[4−6]transform sequences into graph structures to capture relationships of ***,they have the following two limitations.

关键词： sequences behavior sequential

Increased excitatory amino acid transporter 2 levels in basolateral amygdala astrocytes mediate chronic stress–induced anxiety-like behavior

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Neural Regeneration Research 2025年第6期20卷 1721-1734页

作者： Xirong Xu Shoumin Xuan Shuai Chen Dan Liu Qian Xiao Jie Tu Shenzhen Key Laboratory of Neuroimmunomodulation for Neurological Diseases Shenzhen-Hong Kong Institute of Brain ScienceShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong ProvinceChina CAS Key Laboratory of Brain Connectome and Manipulation Brain Cognition and Brain Disease Institute(BCBDI)Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong ProvinceChina Guangdong Provincial Key Laboratory of Brain Connectome and behavior the Brain Cognition and Brain Disease Institute(BCBDI)Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong ProvinceChina University of Chinese of Academy of Sciences BeijingChina Faculty of Life and Health Sciences Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong ProvinceChina

The conventional perception of astrocytes as mere supportive cells within the brain has recently been called into question by empirical evidence, which has revealed their active involvement in regulating brain function and encoding behaviors associated with ***, astrocytes in the basolateral amygdala have been found to play a role in the modulation of anxiety-like behaviors triggered by chronic stress. Nevertheless, the precise molecular mechanisms by which basolateral amygdala astrocytes regulate chronic stress–induced anxiety-like behaviors remain to be fully elucidated. In this study, we found that in a mouse model of anxiety triggered by unpredictable chronic mild stress, the expression of excitatory amino acid transporter 2 was upregulated in the basolateral amygdala. Interestingly, our findings indicate that the targeted knockdown of excitatory amino acid transporter 2 specifically within the basolateral amygdala astrocytes was able to rescue the anxiety-like behavior in mice subjected to stress. Furthermore, we found that the overexpression of excitatory amino acid transporter 2 in the basolateral amygdala, whether achieved through intracranial administration of excitatory amino acid transporter 2agonists or through injection of excitatory amino acid transporter 2-overexpressing viruses with GfaABC1D promoters, evoked anxiety-like behavior in mice. Our single-nucleus RNA sequencing analysis further confirmed that chronic stress induced an upregulation of excitatory amino acid transporter 2 specifically in astrocytes in the basolateral amygdala. Moreover, through in vivo calcium signal recordings, we found that the frequency of calcium activity in the basolateral amygdala of mice subjected to chronic stress was higher compared with normal *** knocking down the expression of excitatory amino acid transporter 2 in the basolateral amygdala, the frequency of calcium activity was not significantly increased, and anxiety-like behavior was ob

关键词： anxiety astrocytes basolateral amygdala behavior dihydrokainic acid excitatory amino acid transporter 2 fiber photometry glutamate LDN-212320 transporter

Unveiling the brain’s symphony:exploring the necessity and sufficiency of neural networks in behavior control

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Neural Regeneration Research 2025年第1期20卷 186-187页

作者： Fernando Jose Bustos Instituto de Ciencias Biomedicas Facultad de Medicina y Facultad de Ciencias de la VidaUniversidad Andres BelloSantiagoChile Millennium Nucleus of Neuroepigenetics and Plasticity(EpiNeuro) SantiagoChile

Since the pioneering work by Broca and Wernicke in the 19th century,who examined individuals with brain lesions to associate them with specific behaviors,it was evident that behaviors are complex and cannot be fully attributable to specific brain areas ***,they involve connectivity among brain areas,whether close or *** that time,this approach was considered the optimal way to dissect brain circuitry and *** pioneering efforts opened the field to explore the necessity or sufficiency of brain areas in controlling behavior and hence dissecting brain ***,the connectivity of the brain and the mechanisms through which various brain regions regulate specific behaviors,either individually or collaboratively,remain largely *** animal models,researchers have endeavored to unravel the necessity or sufficiency of specific brain areas in influencing behavior;however,no clear associations have been firmly established.

关键词： behavior connectivity neural

Correction to:Spatiotemporal behavior of predators and prey in an arid environment of Central Asia

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Current Zoology 2024年第3期70卷 418-418页

This is a correction to:Marcello Franchini,Luciano Atzeni,Sandro Lovari,Battogtokh Nasanbat,Samiya Ravchig,Francisco Ceacero Herrador,Giovanni Bombieri,Claudio Augugliaro,Spatiotemporal behavior of predators and prey ... 详细信息

关键词： predator behavior correction

Effect of quaternary basicity on softening-melting behavior of primary slag based on magnesium flux pellet

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Journal of Iron and Steel Research(International) 2022年第8期29卷 1185-1193页

作者： Kai-kai Bai Hai-bin Zuo Wen-guo Liu Jing-song Wang Jian-sheng Chen Qing-guo Xue State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China

It is generally accepted that the softening-melting properties of ferrous burden play a vital role in optimizing the shape and position of cohesive *** effect of quaternary basicity and atmosphere on softening,melting and permeation temperatures of primary slag based on magnesium flux pellet was investigated by visualization *** mechanisms were analyzed utilizing thermodynamic calculation,X-ray diffraction analysis and electron probe *** results indicated that the softening and melting temperatures of oxide samples increased by approximately 120℃with increasing quaternary basicity from 0.3 to 1.2 owing to the formation of slag phases with high melting point and solid ***,the difference between softening and melting temperatures decreased from 21 to 11℃.The permeation temperature was not affected by the quaternary basicity and fluctuated around a level of 1250 C,given that the permeation temperature depends on the wettability between slag and coke *** the other hand,as the ratios of CO/CO_(2) varied from 3/7 to 7/3,there were no significant differences in either the softening or melting temperatures,whereas the permeation temperature was increased from 1239 to 1271℃ since the reduction of FeO-bearing phases to solid Fe could decrease the wettability between slag and coke bed.

关键词： Magnesium flux pellet Primary slag Quaternary basicity CO/CO_(2)ratio Cohesive zone Softening-melting behavior

Precipitation behavior of P550 steel for non-magnetic drill collars during isothermal aging at 650–900℃

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Journal of Iron and Steel Research(International) 2022年第4期29卷 636-646页

作者： Li-wei Xu Huai-bei Zheng Hua-bing Li Zhou-hua Jiang Shu-cai Zhang Jiang-tao Yu Hao Feng Yue Lin School of Metallurgy Northeastern UniversityShenyang 110819LiaoningChina State Key Laboratory of Metal Material for Marine Equipment and Application Anshan 114002LiaoningChina

Precipitation behavior of P550 steel for non-magnetic drill collars was investigated by microstructure characterization as well as thermodynamic *** results demonstrate that the main precipitate formed at 650–900℃was cellular Cr_(2)N,and its precipitation depended heavily on the aging *** most sensitive precipitation temperature of cellular Cr_(2)N was 750℃.At 750℃,the cellular Cr_(2)N exhibited fast-slow precipitation kinetics with the aging time *** initial precipitation of cellular Cr_(2)N was governed by the short-range intergranular diffusion of *** long-term aging,its growth was controlled by the long-range bulk diffusion of *** addition,cellular Cr_(2)N induced the precipitation of r phase ahead of the cell after long period of *** the nitrogen content resulted in the increment of both the nucleation site and the driving force for the cellular Cr_(2)N,which jointly promoted its precipitation.

关键词： P550 steel Non-magnetic drill collar Precipitation behavior Cellular Cr_(2)N r Phase Nitrogen

Kinetics and mechanism of the sulfurization behavior of silver conductive material in automobile industry

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Rare Metals 2022年第1期41卷 37-44页

作者： Ze-Di Shi Le Zhang Yue-Long Ma Tian-Yuan Zhou Bing-Heng Sun Cen Shao Guo-Can Huang Shi-Tong Yin Su-Dan Hou Zeng-Wang Yang Hao Chen School of Physics and Electronic Engineering Jiangsu Normal UniversityXuzhou 221116China Jiangsu Xiyi Advanced Materials Research Institute of Industrial Technology Xuzhou 221400China School of Mechanical Engineering Jiangsu UniversityZhenjiang 212013China Xuzhou All-To Optoelectronics Co. Ltd.Xuzhou 221116China Jiangsu Yunyi Electric Co. Ltd.Xuzhou 221116China

As a functional material,silver was employed as the electrical contact material in automotive electronics due to the excellent ***,this material was prone to the atmospheric corrosion,resulting in the damage of structure and failure of *** this study,the corrosion behavior of conductive silver applied in printed circuit board was explored,and it was found that the strongest environmental factors(SO2 pollutants,temperature and relative humidity(RH))influenced the structural damage of material on the viewpoints of kinetics and *** with other factors,temperature(55℃)was the dominating factor causing the structural change of conductive material under operation environments,and the corrosion product on the surface reached the maximum at the thickness of different corrosion product layer of dfilm=15.56910-5 ***,SO2 pollutants and RH accordingly increase the thickness of corrosion products(Ag2S and Ag_(2)SO_(4))during corrosion process,due to the promotion of the diffusion of corrosive ***,this study not only significantly reinforces the understanding of the structural damage of conductive material among the different environmental factors,but also provides an important guide to corrosion prevention design and materials selection in actual manufacturing.

关键词： corrosion silver behavior

Prenatal programing of motivated behaviors:can innate immunity prime behavior?

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Neural Regeneration Research 2023年第2期18卷 280-283页

作者： Larisa Montalvo-Martínez Gabriela Cruz-Carrillo Roger Maldonado-Ruiz Luis ATrujillo-Villarreal Eduardo AGarza-Villarreal Alberto Camacho-Morales Universidad Autónoma de Nuevo León Department of BiochemistryCollege of MedicineMonterreyMéxico Universidad Autónoma de Nuevo León Neurometabolism UnitCenter for Research and Development in Health SciencesMonterreyMéxico Universidad Nacional Autónoma de México Campus Juriquilla Instituto de NeurobiologíaQueretaroMéxico

Prenatal programming during pregnancy sets physiological outcomes in the offspring by integrating external or internal ***,pregnancy is an important stage of physiological adaptations to the environment where the fetus becomes exposed and adapted to the maternal *** exposure to high-energy dense diets can affect motivated behavior in the offs p ring leading to addiction and impaired sociability.A high-energy dense exposure also increases the pro-inflammatory cytokines profile in plasma and brain and favors microglia activation in the *** still under investigation,prenatal exposure to high-energy dense diets promotes structural abnormalities in selective brain regions regulating motivation and social behavior in the *** current review addresses the role of energy-dense foods programming central and peripheral inflammatory profiles during embryonic development and its effect on motivated behavior in the *** provide preclinical and clinical evidence that supports the contribution of prenatal programming in shaping immune profiles that favor structural and brain circuit disruption leading to aberrant motivated behaviors after *** hope this minireview encourages future research on novel insights into the mechanisms underlying maternal programming of motivated behavior by central immune networks.

关键词： addiction autism behavior cytokines diet maternal immune activation prenatal programming sociability trained immunity western-diets

Arc decomposition behavior of C_(4)F_(7)N/Air gas mixture and biosafety evaluation of its by-products

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High Voltage 2022年第5期7卷 856-865页

作者： Fanchao Ye Xiaoxing Zhang Yi Li Qianqian Wan Jean-Marc Bauchire Dunpin Hong Song Xiao Ju Tang School of Electrical Engineering and Automation Wuhan UniversityWuhanChina University of Orleans CNRSOrleansFrance Hubei Engineering Research Center for Safety Monitoring of New Energy and Power Grid Equipment Hubei University of TechnologyWuhanChina Zhongnan Hospital Wuhan UniversityWuhanChina

At present,reports on the arc interruption and decomposition behavior of a C_(4)F_(7)N/air gas mixture especially the biosafety of its by-products are ***,a 57%C_(4)F_(7)N/43%air gas mixture was employed as an arc-quenching medium to conduct 200 breaking tests on a load switch(630 A/24 kV).The arc interruption and decomposition behavior of the gas mixture were evaluated,and the biosafety of the decomposition products was assessed based on an acute inhalation toxicity *** was found that the average arcing time of the 200 breakings was about 10.1 ms and that breakings were basically completed at the zero-crossing of the second or third current *** gas mixture after breaking decomposed dramatically(the C_(4)F_(7)N content decreased by 75.6%),generating a large number of gaseous by-products(CO,CF_(4),C_(2)F_(6),C_(3)F_(8),CF_(3)CN,C_(4)F_(8),CO_(2),C_(4)F_(10)N_(2),C_(3)F_(6),C_(2)N_(2),etc.)as well as solid by-products(carbon particles).The lethal concentration of 50%(LC50,4 h)of C_(4)F_(7)N/air after 200 breakings was 31 ppm(male mice)and 34 ppm(female mice),respectively,and the toxicity was classified as Grade *** general,C_(4)F_(7)N has an arc interruption capability,albeit weaker than that of SF_(6)under the same *** breaking,the C_(4)F_(7)N gas mixture has a relatively high acute inhalation toxicity,and relevant safety protection measures for research or operation personnel are strictly needed.

关键词： breaking mixture behavior