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  1. Article ; Online: Double-pulse-laser volumetric modification of fused silica: the effect of pulse delay on light propagation and energy deposition.

    Zukerstein, M / Zhukov, V P / Derrien, T J-Y / Fedotova, O / Bulgakova, N M

    Optics express

    2024  Volume 32, Issue 7, Page(s) 12882–12891

    Abstract: Volumetric modification of dielectrics by ultrashort laser pulses is a complex dynamic phenomenon involving material photoexcitation and associated nonlinear processes. To achieve control over modification, it is necessary to gain a deep insight into the ...

    Abstract Volumetric modification of dielectrics by ultrashort laser pulses is a complex dynamic phenomenon involving material photoexcitation and associated nonlinear processes. To achieve control over modification, it is necessary to gain a deep insight into the dynamics of laser-excited processes that can be realized using double-laser-pulse experiments with different time separations supported by numerical simulations. In this paper, we apply this approach to investigate fused silica modification with femtosecond laser pulses that provides time-resolved information about the dynamic behavior of the laser-excited bandgap material. It is shown that the laser-generated free-electron plasma causes a shielding effect for the following pulse with a characteristic duration of ∼600 fs after the pulse action. Within this time interval, the second pulse produces a reduced modification as compared to a longer time separation between pulses. For double pulses with different energies, it was found that the volumetric modification is stronger when a lower-energy pulse couples with material first. This is explained by the combination of the effects of the re-excitation of self-trapped excitons, which are generated as a result of free electron recombination and associated light shielding. Experimental results are supported by numerical simulations of double laser pulse propagation in nonlinear media based on Maxwell's equations. Our findings offer a route for better controlling the inscription of 3D photonic structures in bulk optical materials.
    Language English
    Publishing date 2024-04-03
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1491859-6
    ISSN 1094-4087 ; 1094-4087
    ISSN (online) 1094-4087
    ISSN 1094-4087
    DOI 10.1364/OE.515766
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  2. Article: A Dimensional Approach to Discrepancy in Parenting Styles in Russian Families.

    Zhukova, Marina A / Li, Nan / Zhukov, Vitalii / Grigorenko, Elena L

    Children (Basel, Switzerland)

    2023  Volume 10, Issue 8

    Abstract: We investigated the magnitude and direction of differences in parenting styles as they relate to children's mental health problems, as assessed using the CBCL. The sample consisted of 306 families residing in a large industrial city in Russia. We aimed ... ...

    Abstract We investigated the magnitude and direction of differences in parenting styles as they relate to children's mental health problems, as assessed using the CBCL. The sample consisted of 306 families residing in a large industrial city in Russia. We aimed to expand the cross-cultural literature on parenting styles by assessing a sample of Russian families and analyzing how agreement versus disagreement between self-reported and partner-reported parenting styles related to children's mental health problems. The findings suggested that both congruence and incongruence between parenting styles could be associated with children's mental health problems. When parents agreed about high warmth and matched on lower levels of demandingness, in line with the permissive parenting style, children tended to exhibit maladaptive behavior and externalizing problems. We also registered that children were likely to show low levels of mental health problems when fathers had higher self-reported warmth compared with mothers' reports. In contrast, children whose fathers had higher self-reported demandingness compared with the mothers' reports, exhibited moderate levels of mental health problems. This study expands the existing literature by providing a dimensional approach to children's mental health difficulties in the context of (dis)agreements in the parenting styles within a family.
    Language English
    Publishing date 2023-08-09
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2732685-8
    ISSN 2227-9067
    ISSN 2227-9067
    DOI 10.3390/children10081367
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  3. Book ; Online: Disturbances in the Doppler frequency shift of ionospheric signal and in telluric current caused by the atmospheric waves from an explosive eruption of Hunga Tonga volcano on January 15, 2022

    Salikhov, N. / Shepetov, A. / Pak, G. / Saveliev, V. / Nurakynov, S. / Ryabov, V. / Zhukov, V.

    2023  

    Abstract: After an explosive eruption of the Hunga Tonga volcano on January 15, 2022, disturbances were observed at a distance of about 12000km in Northern Tien Shan among the variations of the atmosphere pressure, of telluric current, and of the Doppler frequency ...

    Abstract After an explosive eruption of the Hunga Tonga volcano on January 15, 2022, disturbances were observed at a distance of about 12000km in Northern Tien Shan among the variations of the atmosphere pressure, of telluric current, and of the Doppler frequency shift of ionospheric signal. At 16:00:55UTC a pulse of atmospheric pressure was detected there with a peak amplitude of 1.3hPa and propagation speed of 0.3056km/s, equal to the velocity of Lamb wave. In the variations of the Doppler frequency shift, the disturbances of two types were registered on the 3212km and 2969km long inclined radio-paths, one of which arose as a response to the passage of a Lamb wave (0.3059km/s) through the reflection point of radio wave, and another as reaction to the acoustic-gravity wave (0.2602km/s). Two successive perturbations were also detected in the records of telluric current at the arrival times of the Lamb and acoustic-gravity waves into the registration point. According to the parameters of the Lamb wave, an energy transfer into the atmosphere at the explosion of the Hunga Tonga volcano was roughly estimated as 2000Mt of TNT equivalent.
    Keywords Physics - Geophysics
    Subject code 551
    Publishing date 2023-03-07
    Publishing country us
    Document type Book ; Online
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  4. Article: [FMRF-AMIDE REDUCES ELECTRICAL RESPONSES TO LIGHT OF THE EYE IN LYMNAEA STAGNALIS].

    Zhukov, V V / Fedorenko, A D

    Zhurnal evoliutsionnoi biokhimii i fiziologii

    2019  Volume 52, Issue 5, Page(s) 371–376

    MeSH term(s) Action Potentials/drug effects ; Animals ; FMRFamide/pharmacology ; Light ; Lymnaea/metabolism ; Optic Nerve/metabolism
    Chemical Substances FMRFamide (64190-70-1)
    Language Russian
    Publishing date 2019-03-08
    Publishing country Russia (Federation)
    Document type Journal Article
    ZDB-ID 201516-x
    ISSN 0044-4529 ; 0044-4510
    ISSN 0044-4529 ; 0044-4510
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.B 956: Show issues Location:
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  5. Article: Кадастровая оценка вновь образуемых земельных участков земель сельскохозяйственного назначения

    Zhukov V. D.

    Polythematic Online Scientific Journal of Kuban State Agrarian University

    2015-05-29  

    Abstract: State cadastral assessment of agricultural lands conducts to determine their cadastral cost. Its results affect the interests of all land relation subjects. The main scope of the cadastral cost of lands’ use is creation of the basis for the taxation of ... ...

    Abstract State cadastral assessment of agricultural lands conducts to determine their cadastral cost. Its results affect the interests of all land relation subjects. The main scope of the cadastral cost of lands’ use is creation of the basis for the taxation of lands. At present time, the newly formed cadastral assessment of lands is regulated by the methodological guidelines approved by the Economic Development and Trade Ministry of the Russian Federation on 12.08.2006, N 222. According to these methodological guidelines the newly formed cadastral assessment of lands is determined by multiplying the average cost for the municipal district of specific index of cadastral cost of agricultural lands in the area. The current procedure of determination of cadastral cost of the newly formed agricultural lands is considered inadequate. The best option will be the determination of their cost taking into account the individual characteristics of each particular land plot in a particular cadastral quarter. The soil surface quality influence on the cadastral cost of agricultural lands is considered by the example of three land plots, formed at the expense of unclaimed land shares and located in the municipalities of the Krasnodar Region: Dinskoy, Mostovskoy and Tikhoretsk districts
    Document type Article
    ISSN 1990-4665
    Database AGRIS - International Information System for the Agricultural Sciences and Technology

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  6. Article: Nuclear Magnetic Resonance of

    Zhukov, V V / Weisman, I D / Bennett, L H

    Journal of research of the National Bureau of Standards. Section A, Physics and chemistry

    2019  Volume 77A, Issue 6, Page(s) 713–723

    Abstract: The current theoretical and experimental situation with respect to Knight shifts and bulk susceptibility of Cd in pure Cd and in Cd-Mg and Cd-Hg alloys is reviewed. New experimental isotropic and anisotropic Knight shift data ... ...

    Abstract The current theoretical and experimental situation with respect to Knight shifts and bulk susceptibility of Cd in pure Cd and in Cd-Mg and Cd-Hg alloys is reviewed. New experimental isotropic and anisotropic Knight shift data on
    Language English
    Publishing date 2019-05-10
    Publishing country United States
    Document type Journal Article
    ZDB-ID 241519-7
    ISSN 0022-4332
    ISSN 0022-4332
    DOI 10.6028/jres.077A.043
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    In stock of ZB MED Bonn / Germany

    Z 4' 62/62: Show issues

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  7. Article ; Online: The formation and migration of non-equivalent oxygen vacancies in PrBaCo

    Zhukov, V P / Chulkov, E V / Politov, B V / Suntsov, A Yu / Kozhevnikov, V L

    Physical chemistry chemical physics : PCCP

    2021  Volume 23, Issue 3, Page(s) 2313–2319

    Abstract: The ab initio calculated defect formation energies are used for assessment of high-temperature thermodynamic functions that govern the appearance of oxygen vacancies in PrBaCo2-xMxO6-δ, where M = Fe, Co, Ni and Cu. The free energy of oxygen vacancy ... ...

    Abstract The ab initio calculated defect formation energies are used for assessment of high-temperature thermodynamic functions that govern the appearance of oxygen vacancies in PrBaCo2-xMxO6-δ, where M = Fe, Co, Ni and Cu. The free energy of oxygen vacancy formation is shown to depend on the dopant and total oxygen content in the cobaltite. The experimentally observed trend for the oxygen vacancy concentration to increase with the atomic number of 3d dopants from Fe to Cu is explained as a result of the decrease of bond strength. The preferable location of oxygen vacancies near impurity atoms is accompanied by an anisotropic redistribution of electronic charge density. The most pronounced development of this effect in the case of iron doping leads to a low probability of tetrahedrally coordinated iron to exist in the layered cobaltites. It is shown that the calculated enthalpies of defect formation satisfactorily explain the experimentally observed changes of oxygen non-stoichiometry in the doped cobaltite. The energy barriers for oxygen jumps are found to vary only weakly at the doping thus suggesting rather insignificant dependence of the oxygen ion conductivity on 3d dopant nature. The earlier findings and results in the present work are indicative of promising properties combination in PrBaCo2-xNixO6-δ for the application as an electrode material in IT-SOFCs.
    Language English
    Publishing date 2021-01-15
    Publishing country England
    Document type Journal Article
    ZDB-ID 1476244-4
    ISSN 1463-9084 ; 1463-9076
    ISSN (online) 1463-9084
    ISSN 1463-9076
    DOI 10.1039/d0cp05497f
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  8. Article ; Online: Conserving heat consumption by modeling and optimizing efficiency of complex heat exchanger systems

    Wyleciał Tomasz / Urbaniak Dariusz / Barochkin A. E. / Zhukov V. P. / Leznova N. R.

    E3S Web of Conferences, Vol 154, p

    2020  Volume 04004

    Abstract: Many needs have to be met in human life. One of the key needs is to provide living comfort, which is clearly associated with heat. Analyzing the amount of produced heat, it should be emphasized that the higher the development of a country, the greater ... ...

    Abstract Many needs have to be met in human life. One of the key needs is to provide living comfort, which is clearly associated with heat. Analyzing the amount of produced heat, it should be emphasized that the higher the development of a country, the greater the demand for heat. In the era of the debate on the impact of human activities on the climate, it is impossible not to emphasize the importance of conserving energy and heat, and thus the rational management of these goods. The paper proposes a mathematical description of the complex systems of heat exchangers in the form of linear differential equations. Their analytical solution is presented in the form of temperature change of the heat carrier along the heating surface of a four-thread heat exchanger. Analysis of the possible heat exchange cases for eight possible flow systems is presented. In addition, the most effective minimization of heat losses was found.
    Keywords Environmental sciences ; GE1-350
    Subject code 690
    Language English
    Publishing date 2020-01-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: FORMATION OF SOILS STUDY AND THEIR FERTILITY; A HISTORICAL EXPERIENCE OF SOIL CLASSIFICATION

    Zhukov V. D. / Sheudzhen Z. R.

    Polythematic Online Scientific Journal of Kuban State Agrarian University , Iss 119, Pp 588-

    2016  Volume 605

    Abstract: The roots of scientific knowledge on soil go into antiquity and are connected with the development of land management. A human had knowledge about soil as a friable layer of Earth, which was a subject o land management treatment until the time there were ...

    Abstract The roots of scientific knowledge on soil go into antiquity and are connected with the development of land management. A human had knowledge about soil as a friable layer of Earth, which was a subject o land management treatment until the time there were occurred the problems of shortage of arable lands, hunger and decrease of fertility, which caused the necessity of obtaining of more produce with less arable lands. The development of soil science was required for solving of these practical tasks. In postwar period there were carried out the large researches in the field of plant nutrition and application of fertilizers. For this period the active study of organic properties of soil occurred. The Dokuchaev’s study on genetic types of soil was the tuning point in the development of problems of soil classification. The further development of problems of soil classification were made on the basis of set genetic positions, thus the various approaches lighting the different parties of a classification problem took place. The soil fertility in force of its important functions for a long time is not only as an agronomic category but also as a social, economic, philosophic, and at the last time – ecological one. The modern understanding of function of fertility is reached with the help of mathematical modeling. First, it is necessary clearly to present the aggregate factors of fertility and their interaction between them and external factors
    Keywords SOIL STUDIES ; CLASSIFICATION OF SOILS ; SOIL FERTILITY ; GENETIC SOIL SCIENCE ; DOKUCHAEV’S SOIL SCIENCE ; General Works ; A
    Subject code 630
    Language Russian
    Publishing date 2016-05-01T00:00:00Z
    Publisher Kuban State Agrarian University
    Document type Article ; Online
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  10. Article: [Retina mediators in fresh-water mollusc Lymnaeae stagnalis].

    Zhukov, V V

    Zhurnal evoliutsionnoi biokhimii i fiziologii

    2007  Volume 43, Issue 5, Page(s) 440–447

    Abstract: Retrograde staining of the Lymnaeae stagnalis retina with neurobiotin has shown that most photoreceptor cells send axons to optic nerve without intermediate contacts. A part of these photoreceptors have immunireactivity to glutamate that possibly ... ...

    Abstract Retrograde staining of the Lymnaeae stagnalis retina with neurobiotin has shown that most photoreceptor cells send axons to optic nerve without intermediate contacts. A part of these photoreceptors have immunireactivity to glutamate that possibly provides synaptic transmission of visual signal to central neurons. Other photoreceptors stained through optic nerve seem to have different transmitter systems. In some retina cell, but not in optic nerve fibers, immunoreactivity to pigment-dispersing hormone has been revealed. In tissues surrounding the eye cup numerous serotonin-containing fibers are present, a part of them penetrating the retina basal layer. Some of them belong to central neurons responsible for efferent innervation of the pond snail eye. It is suggested that the serotoninergic innervation as well as the cell containing the pigment-dispersing hormone are included in the mechanism of regulation of light sensitivity of the mollusc eye.
    MeSH term(s) Animals ; Efferent Pathways/physiology ; Fresh Water ; Glutamic Acid/metabolism ; Immunohistochemistry ; Lymnaea/metabolism ; Lymnaea/physiology ; Optic Nerve/metabolism ; Optic Nerve/physiology ; Peptides/metabolism ; Photoreceptor Cells, Invertebrate/metabolism ; Photoreceptor Cells, Invertebrate/physiology ; Retina/metabolism ; Retina/physiology ; Serotonin/metabolism ; Synaptic Transmission/physiology
    Chemical Substances Peptides ; Serotonin (333DO1RDJY) ; Glutamic Acid (3KX376GY7L) ; melanophore-dispersing hormone (9046-72-4)
    Language Russian
    Publishing date 2007-09
    Publishing country Russia (Federation)
    Document type English Abstract ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 201516-x
    ISSN 0044-4529 ; 0044-4510
    ISSN 0044-4529 ; 0044-4510
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

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