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Visual guidelines and tutoring in pediatric urological surgery

当代泌尿学（英文） 2024年第1期18卷 18-22页

作者： Stanislav Kotcherov Shahar Rotem Jawdat Jaber Galit Avraham gennady Lev Michal Darmon yudith Gabay Boris Chertin Department of Pediatric Urology Shaare Zedek Medical CenterFaculty of MedicineHebrew UniversityJerusalemIsrael Department of Pediatric Surgery Shaare Zedek Medical CenterFaculty of MedicineHebrew UniversityJerusalemIsrael The Operation Room Shaare Zedek Medical CenterJerusalemIsrael

Background:The aim of this prospective randomized study was to evaluate the impact of visual guidelines(picture book)and parents tutoring on pediatric urological surgery on parent's stress and anxiety,the number of postoperative contacts,and complications.Materials and methods:Following institutional ethical committee approval,a special picture book reflecting different stages of the con-valescent period following multiple types of pediatric urological surgery was *** were randomly divided into 2 groups in which 33 parents in Group 1 received the picture book in addition to routine instructions prior to the surgery and 31 in Group 2 received only routine postoperative *** parents were asked to answer a questionnaire(Amsterdam Preoperative Anxiety and Infor-mation Scale)regarding the level of anxiety before surgery and immediately after surgery in the recovery *** number of postop-erative parent's calls,nonplaned emergency room visits,and complications were recorded.Results:No statistically significant difference in perioperative parental anxiety was found(p=0.88).The visual tutoring group had a sig-nificantly lower rate of emergency room admissions(6.6％vs.18.6％,p=0.0433),however parents from this group made a higher num-ber of postoperative calls(9.9％vs.3.1％,p=0.38).Two(6.6％)from the tutoring group expressed their desire to omit visual counseling in future surgical preparation and 4(13.2％)did not have an *** satisfaction with regards to the preoperative counseling and information and the number of postoperative complications was similar in both groups.Conclusions:Visual tutoring does not add any value to parental anxiety but seems helpful in reducing postoperative emergency room *** parents preferred to exclude visual information from future preoperative counseling.

关键词： Anesthesia Children Hypospadias Pediatric case Questionnaires

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Emergence of tunable intersubband-plasmonpolaritons in graphene superlattices

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Advanced Photonics 2023年第2期5卷 62-69页

作者： Minwoo Jung gennady Shvets Cornell University Department of PhysicsIthacaNew YorkUnited States Cornell University School of Applied and Engineering PhysicsIthacaNew YorkUnited States

On-demand modification of the electronic band structures of high-mobility two-dimensional(2D)materials is of great interest for various applications that require rapid tuning of electrical and optical responses of solid-state *** electrically tunable superlattice(SL)potentials have been proposed for band structure engineering of the Dirac electrons in graphene,the ultimate goal of engineering emergent quasiparticle excitations that can hybridize with light has not been *** show that an extreme modulation of one-dimensional(1D)SL potentials in monolayer graphene produces ladder-like electronic energy levels near the Fermi surface,resulting in optical conductivity dominated by intersubband transitions(ISBTs).A specific and experimentally realizable platform comprising hBN-encapsulated graphene on top of a 1D periodic metagate and a second unpatterned gate is shown to produce strongly modulated electrostatic *** find that Dirac electrons with large momenta perpendicular to the modulation direction are waveguided via total internal reflections off the electrostatic potential,resulting in flat subbands with nearly equispaced energy *** predicted ultrastrong coupling of surface plasmons to electrically controlled ISBTs is responsible for emergent polaritonic quasiparticles that can be optically *** study opens an avenue for exploring emergent polaritons in 2D materials with gate-tunable electronic band structures.

关键词： band structure engineering two-dimensional materials polaritons plasmons intersubband transitions

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Exploring and visualizing temporal relations in multivariate time series

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Visual Informatics 2023年第4期7卷 57-72页

作者： Gota Shirato Natalia Andrienko gennady Andrienko Fraunhofer IAIS Sankt AugustinGermany University of Bonn BonnGermany City University of LondonLondonUK

This paper introduces an approach to analyzing multivariate time series(MVTS)data through progressive temporal abstraction of the data into patterns characterizing the behavior of the studied dynamic *** paper focuses on two core challenges:identifying basic behavior patterns of individual attributes and examining the temporal relations between these patterns across the range of attributes to derive higher-level abstractions of multi-attribute *** proposed approach combines existing methods for univariate pattern extraction,computation of temporal relations according to the Allen’s time interval algebra,visual displays of the temporal relations,and interactive query operations into a cohesive visual analytics *** paper describes the application of the approach to real-world examples of population mobility data during the COVID-19 pandemic and characteristics of episodes in a football match,illustrating its versatility and effectiveness in understanding composite patterns of interrelated attribute behaviors in MVTS data.

关键词： Temporal relations Temporal abstraction Multivariate time series Time intervals

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Identifying,exploring,and interpreting time series shapes in multivariate time intervals

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Visual Informatics 2023年第1期7卷 77-91页

作者： Gota Shirato Natalia Andrienko gennady Andrienko Fraunhofer IAIS Sankt Augustin53757Germany University of Bonn Regina-Pacis-Weg 3Bonn53113Germany City University of LondonNorthampton SquareLondonEC1V 0HBUK

We introduce a concept of episode referring to a time interval in the development of a dynamic phenomenon that is characterized by multiple time-variant attributes.A data structure representing a single episode is a multivariate time *** analyse collections of episodes,we propose an approach that is based on recognition of particular patterns in the temporal variation of the variables within *** episode is thus represented by a combination of *** this representation,we apply visual analytics techniques to fulfil a set of analysis tasks,such as investigation of the temporal distribution of the patterns,frequencies of transitions between the patterns in episode sequences,and co-occurrences of patterns of different variables within same *** demonstrate our approach on two examples using real-world data,namely,dynamics of human mobility indicators during the COVID-19 pandemic and characteristics of football team movements during episodes of ball turnover.

关键词： Temporal patterns Multivariate time series Time intervals

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A learning-based approach for efficient visualization construction

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Visual Informatics 2022年第1期6卷 14-25页

作者： yongjian Sun Jie Li Siming Chen gennady Andrienko Natalia Andrienko Kang Zhang College of Intelligence and Computing Tianjin UniversityChina School of Data Science Fudan UniversityChina Fraunhofer Institute IAIS Germany City University London UK Beijing Normal University-Hong Kong Baptist University United International College China

We propose an approach to underpin interactive visual exploration of large data volumes by training Learned Visualization Index(LVI).Knowing in advance the data,the aggregation functions that are used for visualization,the visual encoding,and available interactive operations for data selection,LVI allows to avoid time-consuming data retrieval and processing of raw data in response to user’s ***,LVI directly predicts aggregates of interest for the user’s data *** demonstrate the efficiency of the proposed approach in application to two use cases of spatio-temporal data at different scales.

关键词： Learned index Neural network Visualization index Interactive exploration Spatiotemporal visualization

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Recent results of zebra patterns in solar radio bursts

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Research in Astronomy and Astrophysics 2010年第9期10卷 821-866页

作者： gennady P.Chernov Key Laboratory of Solar Activity National Astronomical ObservatoryChinese Academy of Science Pushkov Institute of Terrestrial Magnetism Ionosphere and Radio Wave PropagationRussian Academy of Sciences (IZMIRAN)

This review covers the most recent experimental results and theoretical research on zebra patterns （ZPs） in solar radio bursts. The basic attention is given to events with new peculiar elements of zebra patterns received over the last few years. All new properties are considered in light of both what was known earlier and new theoretical models. Large-scale ZPs consisting of small-scale fiber bursts could be explained by simultaneous inclusion of two mechanisms when whistler waves ＂high- light＂ the levels of double plasma resonance （DPR）. A unique fine structure was observed in the event on 2006 December 13： spikes in absorption formed dark ZP stripes against the absorptive type Ⅲ-like bursts. The spikes in absorption can appear in accordance with well known mechanisms of absorptive bursts. The additional injection of fast particles filled the loss-cone （breaking the loss-cone distribution）, and the generation of the continuum was quenched at these moments. The maximum absorptive effect occurs at the DPR levels. The parameters of millisecond spikes are determined by small dimensions of the particle beams and local scale heights in the radio source. Thus, the DPR model helps to understand severai aspects of unusual elements of ZPs. However, the simultaneous existence of several tens of the DPR levels in the corona is impossible for any realistic profile of the plasma density and magnetic field. Three new theories of ZPs are examined. The formation of eigenmodes of transparency and opac- ity during the propagation of radio waves through regular coronal inhomogeneities is the most natural and promising mechanism. Two other models （nonlinear periodic space - charge waves and scattering of fast protons on ion-sound harmonics） could happen in large radio bursts.

关键词： Sun general -- Sun flare -- Sun radio radiation

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CRITICAL ISSUES IN THE NUMERICAL TREATMENT OF THE PARAMETER ESTIMATION PROBLEMS IN IMMUNOLOGy

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Journal of Computational Mathematics 2012年第1期30卷 59-79页

作者： Tatyana Luzyanina gennady Bocharov Institute of Mathematical Problems in Biology RAS Pushchino Moscow reg. Russia Institute of Numerical Mathematics RAS Moscow Russia

A robust and reliable parameter estimation is a critical issue for modeling in immunology. We developed a computational methodology for analysis of the best-fit parameter estimates and the information-theoretic assessment of the mathematical models formulated with ODEs. The core element of the methodology is a robust evaluation of the first and second derivatives of the model solution with respect to the model parameter values. The critical issue of the reliable estimation of the derivatives was addressed in the context of inverse problems arising in mathematical immunology. To evaluate the first and second derivatives of the ODE solution with respect to parameters, we implemented the variational equations-, automatic differentiation and complex-step derivative approximation methods. A comprehensive analysis of these approaches to the derivative approximations is presented to understand their advantages and limitations.

关键词： Mathematical modeling in immunology Parameter estimation Constrainedoptimization.

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Cas9-targeted Nanopore sequencing rapidly elucidates the transposition preferences and DNA methylation profiles of mobile elements in plants

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Journal of Integrative Plant Biology 2023年第10期65卷 2242-2261页

作者： Pavel Merkulov Sofya Gvaramiya Maxim Dudnikov Roman Komakhin Murad Omarov Alina Kocheshkova Zakhar Konstantinov Alexander Soloviev gennady Karlov Mikhail Divashuk Ilya Kirov All‐Russia Research Institute of Agricultural Biotechnology Moscow 127550Russia Moscow Institute of Physics and Technology Dolgoprudny 141701Russia All‐Russia Center for Plant Quarantine Ramenski 140150Russia N.V.Tsitsin Main Botanical Garden of the Russian Academy of Sciences Moscow 127276Russia

Transposable element insertions(TEIs) are an important source of genomic innovation by contributing to plant adaptation, speciation, and the production of new varieties. The often large,complex plant genomes make identifying TEIs from short reads difficult and expensive. Moreover, rare somatic insertions that refect mobilome dynamics are difficult to track using short *** address these challenges, we combined Cas9-targeted Nanopore sequencing(CANS) with the novel pipeline Nano Cas TE to trace both genetically inherited and somatic TEIs in plants. We performed CANS of the EVADé(EVD) retrotransposon in wild-type Arabidopsis thaliana and rapidly obtained up to 40× sequence *** of hemizygous T-DNA insertion sites and genetically inherited insertions of the EVD transposon in the ddm1(decrease in DNA methylation1) genome uncovered the crucial role of DNA methylation in shaping EVD insertion *** also investigated somatic transposition events of the ONSEN transposon family, finding that genes that are downregulated during heat stress are preferentially targeted by ONSENs. Finally, we detected hypomethylation of novel somatic insertions for two ONSENs. CANS and Nano Cas TE are effective tools for detecting TEIs and exploring mobilome organization in plants in response to stress and in different genetic backgrounds, as well as screening T-DNA insertion mutants and transgenic plants.

关键词： Arabidopsis DNA methylation Nanopore sequencing transposon insertions

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一种用于强流脉冲离子束的束流输出稳定性实时监测方法

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物理学报 2023年第17期72卷 268-274页

作者：许莫非于翔张世健 gennady Efimovich Remnev 乐小云北京航空航天大学物理学院北京100191 北京航空航天大学大数据精准医疗高精尖创新中心北京100191 北京航空航天大学先进核能材料与物理北京市重点实验室北京100191 托木斯克理工大学托木斯克634050

强流脉冲离子束辐照后的材料表面状态对束流强度具有极高的敏感性.因此,在辐照实验中监测束流输出的稳定性,并及时识别出参数抖动较大的脉冲,对于实验结果的分析和表面改性效果的优化具有重要意义.本文利用塑料闪烁体构建了一种时间分辨... 详细信息

强流脉冲离子束辐照后的材料表面状态对束流强度具有极高的敏感性.因此,在辐照实验中监测束流输出的稳定性,并及时识别出参数抖动较大的脉冲,对于实验结果的分析和表面改性效果的优化具有重要意义.本文利用塑料闪烁体构建了一种时间分辨为6 ns的快响应脉冲X射线诊断系统,成功捕获了外磁绝缘离子束二极管工作时产生的X射线.同时,通过红外相机和法拉第筒对离子束流的能量密度和电流密度进行测量.分析结果显示,轫致辐射强度和离子束发射强度均取决于二极管加速电压,导致X射线强度和离子束流能量密度呈现正相关趋势.当离子电流密度发生抖动时,X射线信号幅值表现出良好的变化跟随性,能够对偏离预设参数区间的脉冲做出响应.这说明本文提出的非拦截式诊断方法能够有效地实时监测强流脉冲离子束束流输出的稳定性.

关键词：强流脉冲离子束束流输出稳定性实时监测脉冲 X 射线诊断系统

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Towards high-performance tubular-type protonic ceramic electrolysis cells with all-Ni-based functional electrodes

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Journal of Energy Chemistry 2020年第1期29卷 65-74,I0003页

作者： Artem Tarutin Anna Kasyanova Julia Lyagaeva gennady Vdovin Dmitry Medvedev Laboratory of Electrochemical Devices Based on Solid Oxide Proton Electrolytes Institute of High Temperature ElectrochemistryYekaterinburg 620137Russia Ural Federal University Yekaterinburg 620002Russia

Protonic ceramic electrolysis cells(PCECs),which permit high-temperature electrolysis of water,exhibit various advantages over conventional solid oxide electrolysis cells(SOECs),including cost-effectiveness and the potential to operate at low-/intermediate-temperature ranges with high performance and *** many efforts have been made in recent years to improve the electrochemical characteristics of PCECs,certain challenges involved in scaling them up remain *** the present work,we present a twin approach of combining the tape-calendering method with all-Ni-based functional electrodes with the aim of fabricating a tubular-designed PCEC having an enlarged electrode area(4.6 cm^2).This cell,based on a 25μm-thick BaCe0.5Zr0.3Dy0.2O3-δ proton-conducting electrolyte,a nickelbased cermet and a Pr1.95Ba0.05NiO4+δ oxygen electrode,demonstrates a high hydrogen production rate(19 m L min^-1 at 600℃),which surpasses the majority of results reported for traditional button-or planar-type *** findings increase the scope for scaling up solid oxide electrochemical cells and maintaining their operability at reducing temperatures.

关键词： Steam electrolysis Hydrogen production PCECs Proton-conducting electrolytes Ln2NiO4

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