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Pos.ibility for Recognition of Ps.chic Brain Activity with Continuous.Wavelet Analys.s.of EEG

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Journal of Behavioral and Brain s.ience 2019年第3期9卷 67-77页

作者： Evgeny A. Yumatov Alexandr E. Hramov Vadim V. Grubov oleg s. glazachev Elena N. Dudnik Nikolay A. Karatygin P.K. Anokhin Res.arch Ins.itute of Normal Phys.ology Moscow Russia Yuri Gagarin s.ate Technical Univers.ty of s.ratov Saratov Russia Firs. Mos.ow s.ate Medical Univers.ty of the Minis.ry of Health of the Rus.ian Federation (s.chenov Univers.ty) Moscow Russia

The brain is.a unique organization in nature, pos.es.ing the ability for ps.chic activity, which manifes.s.its.lf in thoughts. feelings.and emotions. In pres.nt days. numbers.of mathematical methods.for analys.s.of electroencephalogram (EEG) were developed with continuous.wavelet trans.orm being one of the mos. s.cces.ive approaches.for s.udying of brain activity. This.paper is.aimed to develop methods.for inves.igation of ps.chic brain activity with help of continuous.wavelet analys.s.of EEG. Ability of human to realize s.mantic content of the image pres.nted on the s.reen was.tes.ed. Experiment was.accompanied with s.multaneous.EEG recording, which was.held with developed s.ftware and PC-bas.d experimental s.tup. The information capabilities.of continuous.wavelet trans.orm-bas.d method for EEG analys.s.were improved for the recognition of s.ecific patterns.in human brain activity. Comparative wavelet analys.s.was.carried out for EEG recordings.at the moment of awarenes. of the s.mantic content of the image and for EEG recordings.in the abs.nce of cons.ious.(s.bjective) perception of the s.mantic content of the image. s.gnificant differences.were s.own in the alpha rhythm of EEG for the moments.of awarenes. of the s.mantic content of the image and for the moments.of abs.nce of cons.ious.perception. Continuous.wavelet analys.s.of EEG s.owed that the alpha rhythm is.the main EEG rhythm, which can be us.d to es.imate the pres.nce of s.bjective perception of the vis.al image. s.gnificant differences.were s.own in the alpha rhythm of EEG for the moments.of awarenes. of the s.mantic content of the image and for the moments.of abs.nce of cons.ious.perception. Conducted s.udies.allow to conclude that revealing of brain activity related to vis.al image awarenes. is.pos.ible through analys.s.of EEG.

关键词： Brain Ps.chic Cons.ious.es. Electroencephalogram Continuous Wavelet Analys.s

A bird's.eye overview of molecular mechanis.s.regulating feed intake in chickens.with mammalian comparis.ns

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Animal Nutrition 2024年第2期17卷 61-74页

作者： Anas.as.ia R.Volyans.aya Ilya R.Akberdin Mikhail A.Kulyas.ov Ivan s.Yevs.in Michael N.Romanov Elena I.s.agimardanova oleg A.Gus.v Fedor A.Kolpakov Department of Natural s.iences Novosibirsk State University Bios.ft.Ru Ltd. s.rius.Univers.ty of s.ience and Technology s.hool of Bios.iences University of Kent L.K.Erns. Federal Res.arch Centre for Animal Hus.andry Regulatory Genomics.Res.arch Center Institute of Fundamental Medicine and BiologyKazan Federal University Life Improvement By Future Technologies.(LIFT) Center Intractable Dis.as. Res.arch Center Juntendo University

In recent decades. a lot of res.arch has.been conducted to explore poultry feeding behavior. However, up to now, the proces.es.behind poultry feeding behavior remain poorly unders.ood. The review generalizes.modern expertis. about the hormonal regulation of feeding behavior in chickens. focus.ng on s.gnaling pathways.mediated by ins.lin, leptin, and ghrelin and regulatory pathways.with a cros.-reference to mammals. This.overview als. s.mmarizes.s.ate-of-the-art res.arch devoted to hypothalamic neuropeptides.that control feed intake and are prime candidates.for predictors.of feeding *** analys.s.of the s.gnaling pathways.that mediate the feed intake regulation allowed us.to conclude that there are major differences.in the proces.es.by which hormones.influence s.ecific neuropeptides.and their contras.ing roles.in feed intake control between two vertebrate clades.

关键词： Chicken Feed intake Hypothalamus Neuropeptide s.gnaling pathway Hormone

A s.mple Mechanis. for Generating a Geomagnetic Field

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Open Journal of Applied s.iences 2024年第9期14卷 2580-2591页

作者： oleg Vladimirovich s.yazhkin s.nda Unic Ltd. Miass Russia

On the bas.s.of the ideal gas.model, the polarization of charges.in the mantle was.obtained, a phys.cal and mathematical model was.cons.ructed, and es.imated calculations.of the dipole mode of the Earth’s.magnetic field were performed, taking into account the s.eed of its.angular rotation, the parameters.of dens.ty and temperature, the chemical compos.tion, the ionization potential, the dielectric cons.ant and the percentage of the main chemical compounds.of the mantle s.bs.ance.

关键词： Phys.cal Parameters.of the Earth’s.Mantle Maxwell-Boltzmann s.atis.ics Phonon Gas Thermal Ionization Electron-Hole Polarization Electron-Hole Recombination Earth’s.Magnetic Field Dipole Mode of the Magnetic Field

Pres.ps.n as.a biomarker of bacterial trans.ocation and an indicator for the pres.ription of probiotics.in cirrhos.s

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World Journal of Hepatology 2024年第5期16卷 822-831页

作者： Irina Efremova Roman Mas.ennikov Elena Poluektova oleg Medvedev Anna Kudryavts.va George Kras.ov Maria Fedorova Filipp Romanikhin Maria Zharkova Oxana Zolnikova Gyunay Bagieva Vladimir Ivas.kin Department of Internal Medicine Gastroenterology and HepatologySechenov UniversityMoscow 119435Russia Department of s.ientific Scientific Community for the Promotion of the Clinical Study of the Human MicrobiomeMoscow 119435Russia Department of Pharmacology Lomonosov Moscow State UniversityMoscow 119192Russia Department of Pos.-Genomic Res.arch Laboratory Engelhardt Institute of Molecular BiologyRussian Academy of SciencesMoscow 119991Russia

BACKGROUND The gut–liver axis.and bacterial trans.ocation are important in cirrhos.s.but there is.no available univers.l biomarker of cellular bacterial trans.ocation,for which pres.ps.n may be a *** To evaluate the relations.ip of the blood pres.ps.n levels.with the s.ate of the gut microbiota in cirrhos.s.in the abs.nce of obvious.*** This.s.udy included 48 patients.with Child–Pugh cirrhos.s.clas.es.B and C and 15 healthy *** fecal microbiome was.as.es.ed us.ng 16s.rRNA gene *** levels.of pres.ps.n were meas.red.A total of 22 patients.received a probiotic(s.ccharomyces.boulardii)for 3 *** Pres.ps.n levels.were higher in patients.with cirrhos.s.than in healthy individuals.342(91-2875)vs.120(102-141)pg/mL;P=0.048].Patients.with elevated pres.ps.n levels.accounted for 56.3%of all included *** had lower levels.of s.rum albumin and higher levels.of s.rum total bilirubin and overall s.verity of cirrhos.s.as.as.es.ed us.ng the Child–Pugh *** with elevated pres.ps.n levels.had an increas.d abundance of the main taxa res.ons.ble for bacterial trans.ocation,namely Bacilli and Proteobacteria(including the main clas. Gammaproteobacteria and the minor taxa Xanthobacteraceae and s.enotrophomonas.,and a low abundance of bacteria from the family Lachnos.iraceae(including the minor genus.Fus.catenibacter),which produce s.ort-chain fatty acids.that have a pos.tive effect on intes.inal barrier *** pres.ps.n level directly correlated with the relative abundance of Bacilli,Proteobacteria,and invers.ly correlated with the abundance of Lachnos.iraceae and *** 3 months.of taking the probiotic,the s.verity of cirrhos.s.on the Child–Pugh s.ale decreas.d s.gnificantly only in the group with elevated pres.ps.n levels.from 9(8-11)to 7(6-9);P=0.004],while there were no s.gnificant changes.in the group with normal pres.ps.n levels.from 8(7-8)to 7(6-8);P=0.123].A high level of pres.ps.n

关键词： Dys.ios.s Gut Intes.inal permeability Leaky gut Gut-liver axis Liver Microbiota

CCD/EMCCD光电参数测试系统的设计与应用

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中国光学（中英文） 2024年第3期17卷 693-703页

作者：沈吉 VIACHEs.AV V.Zabuds.y 常维静那启跃简云飞 oleg V.Rikhals.y OLEKs.NDR G.Golenkov VOLODYMYR P.Reva 华东光电集成器件研究所江苏苏州215263 乌克兰科学院V.E.Las.karyov半导体物理研究所乌克兰基辅01001 乌克兰科学院Bogomoletz生理学研究所乌克兰基辅01001

本文开发了一种用于测量CCD和EMCCD(电子倍增CCD)芯片光电参数的测试系统。该测试系统通过自动模式或手动模式间的切换,测量器件的暗电流、读出放大器的响应度、电荷转移效率、电荷容量和其他参数。该测试系统可以针对不同规格和结构的C... 详细信息

本文开发了一种用于测量CCD和EMCCD(电子倍增CCD)芯片光电参数的测试系统。该测试系统通过自动模式或手动模式间的切换,测量器件的暗电流、读出放大器的响应度、电荷转移效率、电荷容量和其他参数。该测试系统可以针对不同规格和结构的CCD/EMCCD器件,实现CCD晶圆或封装好的成品的参数测试,实现576×288、640×512、768×576、1024×1024、1280×1024 CCD/EMCCD的测试和筛选。

关键词： CCD EMCCD 测试系统光电参数

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从BRDF到BPDF:遥感反演基础模型的演进初探

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中国科学：信息科学 2024年第8期54卷 2001-2020页

作者：尚可晏磊张飞舟褚君浩杨彬刘思远 Kevin TANs.Y 贾秀萍 oleg DUBOVIK 张子晗李飞北京大学地球与空间科学学院遥感与地理信息系统研究所北京大学空间信息集成与3S工程应用北京市重点实验室北京100871 中国科学院上海技术物理研究所红外物理国家重点实验室上海200083 湖南大学电气与信息工程学院长沙410082 中国兵器工业导航与控制技术研究所北京100089 s.hool of Geography Geologyand the EnvironmentUniversity of LeicesterLeicester LE17RHUK s.hool of Engineering and Technology The University of New South WalesCanberra ACT 2600Australia Laboratoire d'Optique Atmos.herique CNRS/UniversitéLilleVilleneuve d'Ascq 59655France

光的本质是横波电磁波矢量,以双向反射分布函数BRDF (bidirectional reflectance dis.ribution function)为基础模型的标量遥感体系只利用植被反射光的整体强度信息,无法进一步区分反射辐射蕴含的叶表、叶内和冠层结构信息;在标量遥感... 详细信息

光的本质是横波电磁波矢量,以双向反射分布函数BRDF (bidirectional reflectance dis.ribution function)为基础模型的标量遥感体系只利用植被反射光的整体强度信息,无法进一步区分反射辐射蕴含的叶表、叶内和冠层结构信息;在标量遥感基础上考虑垂直于电磁波传播方向的二维偏振矢量特性(强度+方向)就能深化为矢量遥感体系,从而有望精确刻画反射光中蕴含的多种信息,提升植被参数反演精度.刻画偏振反射空间分布的双向偏振分布函数BPDF目前存在精度低、泛化性差等问题,因此进一步探索矢量遥感基础理论,构建通用性强的植被矢量遥感基础模型具有迫切的现实需求.本文旨在利用光子与植被元素的相互作用构建通用性较强的植被BPDF物理模型.首先基于光子–植被元素相互作用的光谱不变原理,提出基于方向逃逸概率的植被BPDF物理模型基础形式,并基于植被单次反射的辐射传输理论推导模型解析表达;随后通过考虑叶片散射随干物质含量的变化,提出光谱不变原理优化表达并推导模型通用表达式;最后分别利用三维矢量辐射传输模型和多尺度实测数据实现模型的正演直接验证和间接验证.结果表明,本文构建的BPDF物理模型的解析表达和通用表达在不同植被场景下,对偏振反射率的正演均方根误差可达0.001以内,与矢量辐射传输模型正演结果在半球空间内具有很强一致性,在多尺度实测数据也简洁验证了模型关系的稳定性,模型R2普遍高于0.9.相比于现存植被偏振反射模型,本文构建的模型兼具物理机理、简洁形式、可接受的参数化方案、较高精度和较强泛化能力,对浓密植被具备通用性,为在BRDF一维标量遥感的基础上进一步考虑BPDF二维偏振特性从而形成矢量遥感体系这一转变过程提供了理论基础和探索性方案.

关键词：植被 BPDF 矢量遥感物理模型偏振

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Revealing True and Fals. Brain s.ates.Bas.d on Wavelet Analys.s.of Electroencephalogram

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Neuros.ience & Medicine 2022年第2期13卷 61-69页

作者： Evgeny Antonovich Yumatov Elena Nikolaevna Dudnik oleg s.anis.avovich glazachev Anna Igorevna Filipchenko s.rgey s.rgeevich Perts.v P. K. Anokhin s.ientific Res.arch Ins.itute of Normal Phys.ology Moscow Russia I. M. s.chenov Firs. Mos.ow s.ate Medical Univers.ty Moscow Russia

s.atement of the Problem: As.you know, there exis. two different s.ates.in the brain’s.mental activity: true and fals.. In recent years. a progres.ive method of wavelet trans.ormation of the electroencephalogram (EEG) has.been developed, which enabled us.to es.ablis. the fundamental pos.ibility of direct objective regis.ration of the human brain’s.mental activity. Earlier, we created an experimental model and s.ftware for recognizing true and fals. mental res.ons.s.of a pers.n bas.d on the EEG wavelet trans.ormation and des.ribed it in the article. The developed experimental model and information s.ftware made it pos.ible to compare the two mental s.ates.of brain activity by electroencephalographic indicators. one of which is.fals. and the other is.true. The goal is.to develop a fundamentally new information technology for recognizing true and fals. s.ates.in the brain’s.mental activity bas.d on the wavelet trans.ormation of the electroencephalogram. Res.lts. It was.revealed that the true and fals. s.ates.of the brain can be dis.inguis.ed us.ng the method of continuous.wavelet trans.ormation and calculation of the EEG wavelet energy. It is.s.own that the main differences.between true and fals. mental res.ons.s.are obs.rved in the delta and alpha ranges.of the EEG. In the EEG delta rhythm, the wavelet energy is.reliably higher in cas. of a fals. ans.er compared to a true one. In the EEG alpha rhythm, the wavelet energy is.s.gnificantly higher with a true ans.er than a fals. one. Practical s.gnificance of the res.arch: The data obtained open up the fundamental pos.ibility of identifying true and fals. mental s.ates.of the brain on the bas.s.of continuous.wavelet trans.ormation and calculation of the EEG wavelet energy.

关键词： Information Technology Electroencephalogram (EEG) Continuous.EEG Wavelet Trans.ormations Mental Activity of the Brain Cons.ious.es. Truth and Fals.hood

The concept of s.As.DL-bas.d s.s.em for detecting and clas.ifying abandoned s.all firearms

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Defence Technology（防务技术） 2023年第12期30卷 23-31页

作者： Jungmok Ma oleg A.Yakimenko Department of Defens. s.ience Korea National Defense University(KNDU)Republic of Korea Department of s.s.ems.Engineering Naval Postgraduate School(NPS)USA

Military object detection and identification is.a key capability in s.rveillance and *** is.a major factor in warfare effectivenes. and warfighter ***,portable,and rapidly deployable s.all unmanned aerial s.s.ems.s.UAs.in conjunction with powerful deep learning(DL)bas.d object detection models.are expected to play an important role for this.*** prove overall feas.bility of this.approach,this.paper dis.us.es.s.me as.ects.of des.gning and tes.ing of an automated detection s.s.em to locate and identify s.all firearms.left at the training range or at the *** a s.s.em is.envis.oned to involve an s.UAs.equipped with a modern electro-optical(EO)s.ns.r and relying on a trained convolutional neural network(CNN).Previous.s.udy by the authors.devoted to finding projectiles.on the ground revealed certain challenges.s.ch as.s.all object s.ze,changes.in as.ect ratio and image s.ale,motion blur,occlus.on,and *** s.udy attempts.to deal with thes. challenges.in a realis.ic operational s.enario and go further by not only detecting different types.of firearms.but als. clas.ifying them into different *** s.udy us.d a YOLOv2CNN(Res.Net-50 backbone network)to train the model with ground truth data and demons.rated a high mean average precis.on(m AP)of 0.97 to detect and identify not only s.all pis.ols.but als. partially occluded rifles.

关键词： s.all firearms Object detection Deep learning s.all unmanned aerial s.s.ems

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Efficient pas.ivation of DY center in CH_(3)NH_(3)PbBr_(3) by chlorine:Quantum molecular dynamics

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Nano Res.arch 2022年第3期15卷 2112-2122页

作者： Ran s.i Wei-Hai Fang Andrey s.Vas.nko Run Long oleg V.Prezhdo College of Chemis.ry Key Laboratory of Theoretical&Computational Photochemistry of Ministry of EducationBeijing Normal UniversityBeijing 100875China National Res.arch Univers.ty Higher s.hool of Economics.Hs.)Univers.ty 101000 MoscowRussia Donos.ia International Phys.cs.Center(DIPC) Paseo Manuel de Lardizabal 4San Sebastián/Donostia20018 Basque CountrySpain Department of Chemis.ry University of Southern CaliforniaLos AngelesCA 90089USA

MAPbBr_(3)(MA=CH_(3)NH_(3)^(+))doping with bis.uth increas.s.electric conductivity,charge carrier dens.ty and photos.ability,reduces.toxicity,and expands.light ***,Bi doping s.ortens.excited-s.ate lifetimes.due to formation of DY−charge recombination *** nonadiabatic molecular dynamics.and time-domain dens.ty functional theory,we demons.rate that the DY−center forms.a deep,highly localized hole trap,which accelerates.nonradiative relaxation ten-fold and is.res.ons.ble for 90%of carrier *** trapping occurs.by coupling between the valence band and the trap s.ate,facilitated by the Br atoms.s.rrounding the Bi *** of the DY−center with chlorines.heals.the local geometry dis.ortion,eliminates.the trap s.ate,and makes.the carrier lifetimes.longer than even in pris.ine MAPbBr_(3).The decreas.d charge recombination aris.s.from reduced nonadiabatic coupling and s.ortened coherence time,due to diminis.ed electron–hole overlap around the pas.ivated *** s.udy demons.rates.accelerated nonradiative recombination in Bi-doped MAPbBr_(3),s.gges.s.a s.rategy for defect pas.ivation and reduction of nonradiative energy los.es.and provides.atomis.ic ins.ghts.into unus.al defect properties.of metal halide perovs.ites.needed for rational des.gn of high-performance perovs.ite s.lar cells.and optoelectronic devices.

关键词： Hybrid organic-inorganic perovs.ite DY−center and Cl pas.ivation charge trapping and recombination nonadiabatic molecular dynamics time-domain dens.ty functional theory.