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Modulation of Spike Count Correlations Between Macaque Primary Visual Cortex Neurons by Difficulty of Attentional Task

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Neuroscience Bulletin 2022年第5期38卷 489-504页

作者： Qiyi hu Wenjuan hu Keyi Liu Xiangdong Bu lisha hu Liming Li Xinyu Chai Yao Chen School of Biomedical Engineering Shanghai Jiao Tong UniversityShanghai 200240China

Studies have shown that spatial attention remarkably affects the trial-to-trial response variability shared between *** in the attentional task adjusts how much concentration we maintain on what is currently important and what is filtered as irrelevant sensory ***,how task difficulty mediates the interactions between neurons with separated receptive fields(RFs)that are attended to or attended away is still not *** examined spike count correlations between single-unit activities recorded simultaneously in the primary visual cortex(V1)while monkeys performed a spatial attention task with two levels of ***,the RFs of the two neurons recorded were non-overlapping to allow us to study fluctuations in the correlated responses between competing visual inputs when the focus of attention was allocated to the RF of one *** increasing difficulty in the spatial attention task,spike count correlations were either decreased to become negative between neuronal pairs,implying competition among them,with one neuron(or none)exhibiting attentional enhancement of firing rate,or increased to become positive,suggesting inter-neuronal cooperation,with one of the pair showing attentional suppression of spiking ***,the modulation of spike count correlations by task difficulty was independent of the attended *** findings provide evidence that task difficulty affects the functional interactions between different neuronal pools in V1 when selective attention resolves the spatial competition.

关键词： Rhesus monkey Spatial attention Shared variability Attentional load Primary visual cortex

New Zircon U-Pb Age of Late Devonian Tuff in Guangxi, South China and the Significance for the Paleo-Tethys Branch Ocean

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Acta Geologica Sinica(English Edition) 2018年第1期92卷 402-403页

作者： hu lisha DU Yuansheng XU Yajun WANG Zhiwen WANG Chenghao Collage of Marine Geosciences Key Laboratory of Submarine Geosciences and Prospecting Technology Ocean University of China Laboratory for Marine Geology Qingdao National Laboratory for Marine Science and Technology (QNLM) State Key Laboratory of Biogeology and Environmental Geology China University of Geosciences

Objective The eastern extending range of the Paleo-Tethys Ocean in southwest China has always been focused and controversial. At the beginning of this century some scholars proposed that the Paleo-Tethys Branch Ocean may extend to the Babu-Pingxiang and Cengxi areas along the stouthwestern margin of the South China Block （Cai and Zhang, 2009）. However, the pivotal proof of Late Paleozoic ophoilite and magmatic rocks was absent or sporadical in the Guangxi Zhuang Autonomous Region, resulting in insufficient evidence to support this viewpoint. For the first time this work reported the Late Devonian tuff in the Qinzhou area in the south of the Guangxi Zhuang Autonomous Region and conducted zircon U-Pb dating on it in order to constrain the extension of the Paleo-Tethys Ocean in the South China Block.

关键词： the Paleo-Tethys Branch Ocean New Zircon U-Pb Age of Late Devonian

Vertical profile of aerosol extinction based on the measurement of O4 of multi-elevation angles with MAX-DOAS

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Chinese Physics B 2019年第8期28卷 195-200页

作者： Fusheng Mou Jing Luo Suwen Li Wei Shan lisha hu School of Physics and Electronic Information Huaibei Normal University

A method for aerosol extinction profile retrieval using ground-based multi-axis differential optical absorption spectroscopy(MAX-DOAS)is studied,which is based on a look-up table *** algorithm uses parametric method to represent aerosol extinction profiles and simulate different atmospheric aerosol states through atmospheric radiation transfer *** on the method,aerosol extinction profile was obtained during six cloud-free *** O4 differential air mass factor(dAMF)measured by MAX-DOAS is compared with the corresponding model results under different atmospheric conditions(R^2=0.78).The aerosol optical thickness,aerosol weight factor in boundary layer,and the height of the boundary layer are obtained after the process of minimization and look-up table *** retrieved aerosol extinction in boundary layer is compared with PM2.5 data measured by ground point *** diurnal variation trends of the two methods are in good *** correlation coefficients of the two methods are 0.71 when the aerosol optical thickness is smaller than *** results show that the look-up table method can obtain the aerosol state of the troposphere and provide validation for other instrument data.

关键词： vertical profile of aerosol extinction look-up table O4 differential air mass factor multi-axis differential optical absorption spectroscopy

Influence of Strategy Selection of Dairy Enterprises on Performance

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Asian Agricultural Research 2016年第4期8卷 44-49页

作者： Chaoqun REN Yucheng HE lisha hu College of Economics and Management Huazhong Agricultural University

Dairy enterprises have to cope with intense market pressure and survival *** such complex and competitive market environment,it is of great realistic significance for studying the influence of strategy selection of dairy enterprises on their *** selecting 115 dairy enterprises,empirical analysis was made,and multiple linear regression model and structural equation model were established with the aid of SPSS and Amos *** analysis was carried out for performance of different strategy *** indicate that dairy enterprises selecting vertical strategies obtain the best performance,followed by horizontal strategy,and the worst is multiple strategy,and the strategy selection exerts positive and direct influence on performance of dairy enterprises.

关键词： Dairy enterprises Strategy selection Performance Path analysis

The flhDC gene affects motility and biofilm formation in Yersinia pseudotuberculosis

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Science China(Life Sciences) 2007年第6期50卷 814-821页

作者： WANG Yao1, DING lisha1,2, hu YangBo1,2, ZHANG Yong1,2, YANG BaoYu1 & CHEN ShiYun1 1 Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, China 2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China Wuhan Institute of Virology Chinese Academy of Sciences Wuhan 430071 China Graduate University of Chinese Academy of Sciences Beijing 100049 China

The flagella master regulatory gene flhDC of Yersinia pseudotuberculosis serotype III (YPIII) was mutated by deleting the middle region; replaced by a tetracycline resistant gene,; the subsequent mutant strain named YPIIIΔflhDC was obtained. Swimming assay showed that the swimming motility of the mutant strain was completely abolished. The promoter region of the flagella second-class regulatory gene fliA was fused with the lux box,; was conjugated with the mutant; the parent strains respectively for the first cross. LUCY assay result demonstrated that flhDC regulated the expression of fliA in YPIII as reported in E. coli. Biofilm formation of the mutant strain on abiotic; biotic surfaces was observed; quantified. The results showed that mutation of flhDC decreased biofilm formation on both abiotic; biotic surfaces,; abated the infection on Caenorhabdtis elegans. Our results suggest that mutation of the flagella master regulatory gene flhDC not only abolished the swimming motility, but also affected biofilm formation of YPIII on different surfaces. The new function of flhDC identified in this study provides a novel viewpoint for the control of bacterial biofilm formation.

关键词： Yersinia pseudotuberculosis, flhDC, motility, biofilm

Cleancool纤维抗菌安全吸湿速干面料开发

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针织工业 2018年第9期 23-28页

作者：胡丽莎周用民湖北美术学院服装艺术设计系湖北武汉430205 武汉爱帝针纺实业有限公司湖北武汉430023

基于Cleancool纤维优良的抗菌性和芯吸导湿功能,通过两个实际案例,详细介绍采用天然纤维、再生纤维素纤维和合成纤维开发抗菌吸湿速干针织面料的编织工艺和染整工艺。对开发的面料进行抗菌性、吸湿性、速干性以及抗起毛起球性能检测,结... 详细信息

基于Cleancool纤维优良的抗菌性和芯吸导湿功能,通过两个实际案例,详细介绍采用天然纤维、再生纤维素纤维和合成纤维开发抗菌吸湿速干针织面料的编织工艺和染整工艺。对开发的面料进行抗菌性、吸湿性、速干性以及抗起毛起球性能检测,结果表明,实现了面料的安全有效抗菌及吸湿速干或单向导湿功能,面料的抗起毛起球性能优良。进一步根据面料开发实践,对面料的安全抗菌原理和吸湿速干原理进行详细理论分析,为抗菌安全、吸湿速干针织面料的开发和理论研究提供一定指导。

关键词： Cleancool纤维针织面料抗菌性吸湿速干编织工艺染整工艺

超声与DSA引导经皮封堵治疗房间隔缺损疗效的比较:meta分析

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临床心血管病杂志 2021年第6期37卷 564-568页

作者：张杏杏胡黎沙张爱华泰安市儿童医院心胸科山东泰安271000 泰安市中医二院特检科

目的:系统评价超声与数字减影血管造影(DSA)引导下经皮封堵治疗房间隔缺损的临床疗效及安全性。方法:计算机检索PubMed、The Cochrane Library、Embase、VIP、万方和中国知网数据库中关于超声与DSA介入引导经皮封堵房间隔缺损手术的相... 详细信息

目的:系统评价超声与数字减影血管造影(DSA)引导下经皮封堵治疗房间隔缺损的临床疗效及安全性。方法:计算机检索PubMed、The Cochrane Library、Embase、VIP、万方和中国知网数据库中关于超声与DSA介入引导经皮封堵房间隔缺损手术的相关文献,检索时间范围均为2005年1月—2020年8月。由2位评价员独立筛选文献、提取数据并进行质量控制后,采用RevMan5.4软件进行Meta分析。结果:共纳入14项相关文献,其中包括行超声引导术患者共749例,行DSA引导患者共957例。meta分析结果显示,两组在手术成功率(RR=0.00,95%CI:-0.01~0.02,P=0.56)、术后并发症(RR=-0.02,95%CI:-0.06~0.01,P=0.20)、术后残余分流(RR=-0.01,95%CI:-0.03~0.01,P=0.16)、手术时间(SMD=0.48,95%CI:-0.97~1.93,P=0.52)方面均无统计学差异。分别分析经胸超声和DSA经皮介入封堵术(SMD=-1.12,95%CI:-2.15~-0.09,P=0.03)、经食管超声与DSA经皮介入术的手术费用(SMD=0.54,95%CI:0.27~0.81,P=0.0001),随机效应模型显示合并效应值均差异有统计学意义。结论:超声引导经皮房间隔缺损封堵术是一种安全、有效、费用低廉,较为理想的微创治疗方式,值得临床推广应用。

关键词：房间隔缺损封堵超声数字减影血管造影

CO_(2)地质封存深部地下空间利用管理法规探讨

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中国电机工程学报 2021年第4期41卷 1267-1273页

作者：刁玉杰杨扬李旭峰胡丽莎郑长远马鑫二氧化碳地质储存重点实验室(中国地质调查局水文地质环境地质调查中心) 河北省保定市071051 北京理工大学管理与经济学院能源与环境政策研究中心北京市海淀区100081 水文地质及地热地质重点实验室(青海省水文地质工程地质环境地质调查院) 青海省西宁市810008

深部咸水层CO_(2)地质封存是实现温室气体减排、应对气候变化的重要支撑技术之一。CO_(2)在地下的长期有效封存,需要直接占用深部地质体及其孔隙空间。这些深部地下空间也是未来社会发展的一种重要国土资源,需要制定相关的审批与监管法... 详细信息

深部咸水层CO_(2)地质封存是实现温室气体减排、应对气候变化的重要支撑技术之一。CO_(2)在地下的长期有效封存,需要直接占用深部地质体及其孔隙空间。这些深部地下空间也是未来社会发展的一种重要国土资源,需要制定相关的审批与监管法规来规范其科学开发利用。总结发达国家或地区管理现状与经验,参考已有参考矿产、油气资源勘查开发等经验,提出适用于我国的CO_(2)地质封存地下空间勘查利用审批与管理流程,以及地下空间利用与CO_(2)确权、场地选址勘查备案、勘查试注审批、地下空间利用权审批、封场审批与责任转移5个重要内容;同时,进一步建立了综合CO_(2)羽流、扰动边界和经济性“三级边界”的地下空间利用评估概念模型,以及各类边界的确定方法,能够为我国CO_(2)地质封存地下空间开发利用的政策制定与开发利用提供参考。

关键词： CO_(2)地质封存深部地下空间审批与管理勘查开发评估模型

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饮料酒中手性风味物质研究进展

食品科学 2022年第7期43卷 281-288页

作者：徐浩戴怡凤田露琴胡丽莎邱树毅蒲璐璐贵州大学酿酒与食品工程学院贵州省发酵工程与生物制药重点实验室贵州贵阳550025 北京食品营养与人类健康高精尖创新中心北京工商大学北京100048

饮料酒中含有许多手性风味物质,研究表明这些手性物质的不同立体异构体往往对酒体风味产生不同的影响,不同构型的含量与饮料酒的质量和真实性密切相关。本文综述了近年来在饮料酒中已检测到的手性风味物质,包括各个立体异构体的风味特... 详细信息

饮料酒中含有许多手性风味物质,研究表明这些手性物质的不同立体异构体往往对酒体风味产生不同的影响,不同构型的含量与饮料酒的质量和真实性密切相关。本文综述了近年来在饮料酒中已检测到的手性风味物质,包括各个立体异构体的风味特征和阈值以及其在酒体中的分布,以期为饮料酒中手性风味物质的进一步研究提供参考。

关键词：饮料酒手性立体异构体风味物质