4,587 research outputs found
Re-employment Probabilities and Wage Offer Function for Russian Labor Market
Get PDFThis research addresses labor market transformation in Russia. It elaborates on the theory of job search and focuses on the following issues: (1) evaluation of the re-employment probabilities (hazard rates) for different socio-economic groups; and (2) estimation of wage offer distribution for the transforming labor market. We use data from Phase II of the Russia Longitudinal Monitoring Survey (RLMS) to estimate the employment and wage offer functions for Russian workers who found a job after having been unemployed. We take into account the effectiveness of search strategies used and correct for truncation in wage offers. The binomial logit-OLS estimation method with sample selection bias correction on pooled data from Rounds 5-9 of RLMS is used. The factors considered are sex, education, experience, sector of employment and search methods’ success rate, which are hypothesized to capture the main determinants of job search behavior. The results show that individual characteristics, as well as the search method used, play a decisive role in the re-employment prospects of the unemployed. The private sector employment level is estimated to have the most powerful positive effect on the wage offer function. Russian women are less likely than men to find a job after being unemployed, and wage offers for women are estimated to be lower than for men.Russia, Transition, Job Search, Wage Offer Function, Hazard Rates
Singular perturbations of Volterra equations with periodic nonlinearities: Stability and oscillatory properties
No full textSingularly perturbed integro-differential Volterra equations with MIMO periodic nonlinearities are considered, which describe synchronization circuits (such as phase- and frequency-locked loops) and many other “pendulum-like” systems. Similar to the usual pendulum equation, such systems are typically featured by infinite sequences of equilibria points, and none of which can be globally asymptotically stable. A natural extension of the global asymptotic stability is the gradient-like behavior, that is, convergence of any solution to one of the equilibria. In this paper, we offer an efficient frequency-domain criterion for gradientlike behavior. This criterion is not only applicable to a broad class of infinite-dimensional systems with periodic nonlinearities, but in fact ensures the equilibria set stability under singular perturbation. In particular, the proposed criterion guarantees the absence of periodic solutions that are considered to be undesirable in synchronization systems. In this paper we also discuss a relaxed version of this criterion, which guarantees the absence of “high-frequency” periodic solutions, whose frequencies lie beyond a certain bounded interval.Accepted Author ManuscriptTeam Tamas Keviczk
Volterra Equations with Periodic Nonlinearities: Multistability, Oscillations and Cycle Slipping
Get PDFIn this paper, systems of nonlinear integro-differential Volterra equations are examined that can be represented as feedback interconnections of linear time-invariant block and periodic nonlinearities. The interest in such systems is motivated by their numerous applications in mechanical, electrical and communication engineering; examples include, but are not limited to, models of phase-locked loops, pendulum-like mechanical systems, coupled vibrational units and electric machines. Systems with periodic nonlinearities are usually featured by multistability and have infinite sequences of (locally) stable and unstable equilibria; their trajectories may exhibit nontrivial (e.g. chaotic) behavior. We offer frequency-domain criteria, ensuring convergence of any solution to one of the equilibria points, and this property is referred to as the gradient-like behavior and corresponds to phase locking in synchronization systems. Although it is hard to find explicitly the equilibrium, attracting a given trajectory, we give a constructive estimate for the distance between this limit equilibrium and the initial condition. The relevant estimates are closely related to the analysis of cycle slipping in synchronization systems. In the case where the criterion of gradient-type behavior fails, a natural question arises-which nonconverging solutions may exist in the system and, in particular, how many periodic solutions it has. We show that a relaxation of the frequency-domain convergence criterion ensures the absence of high-frequency periodic orbits. The results obtained in the paper are based on the method of integral quadratic constraints that has arisen in absolute stability theory and stems from Popov's techniques of "a priori integral indices". We illustrate the analytic results by numerical simulations.</p
Dichotomy and stability of disturbed systems with periodic nonlinearities
Get PDFSystems that can be decomposed as feedback interconnections of stable linear blocks and periodic nonlinearities arise in many physical and engineering applications. The relevant models e.g. describe oscillations of a viscously damped pendulum, synchronization circuits (phase, frequency and delay locked loops) and networks of coupled power generators. A system with periodic nonlinearities usually has multiple equilibria (some of them being locally unstable). Many tools of classical stability and control theories fail to cope with such systems. One of the efficient methods, elaborated to deal with periodic nonlinearities, stems from the celebrated Popov method of 'integral indices', or integral quadratic constraints; this method leads, in particular, to frequency-domain criteria of the solutions' convergence, or, equivalently, global stability of the equilibria set. In this paper, we further develop Popov's method, addressing the problem of robustness of the convergence property against external disturbances that do not oscillate at infinity (allowing the system to have equilibria points). Will the forced solutions also converge to one of the equilibria points of the disturbed system? In this paper, a criterion for this type of robustness is offered.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Team Tamas Keviczk
Supplemental material for Development of a marmalade for patients with type 2 diabetes: Sensory characteristics and acceptability
No full textSupplemental material for Development of a marmalade for patients with type 2 diabetes: Sensory characteristics and acceptability by Nataliya V Zhilinskaya, Varuzhan A Sarkisyan, Valentina M Vorobieva, Irina S Vorobieva, Alla A Kochetkova, Elena A Smirnova and Irina V Glazkova in Food Science and Technology International</p
Astronomy Reports V. 46, I. 09
No full textAstronomy Reports -- September 2002
Volume 46, Issue 9, pp. 697-778
Classification of Optical Identifications of Radio Sources from Complete Samples
V. Chavushyan, R. Mujica, J. R. Valdes, A. G. Gorshkov, V. K. Konnikova, and M. G. Mingaliev
pp. 697-703 Full Text: PDF (224 kB)
BVRI Surface Photometry of the Galaxy NGC 3726
A. S. Gusev, A. V. Zasov, S. S. Kaisin, and D. V. Bizyaev
pp. 704-711 Full Text: PDF (331 kB)
BVRIHalpha CCD Photometry of the Spiral Galaxy NGC 3184
A. S. Gusev and S. S. Kaisin
pp. 712-720 Full Text: PDF (547 kB)
Disk Boundaries in Spiral Galaxies
D. V. Bizyaev and A. V. Zasov
pp. 721-730 Full Text: PDF (214 kB)
The Outer Turbulence Scale in the Interstellar Plasma
V. I. Shishov and T. V. Smirnova
pp. 731-739 Full Text: PDF (229 kB)
Light-curve Synthesis for Close Binaries Overfilling Their Inner Roche Lobes
V. I. Mikhailishin
pp. 740-746 Full Text: PDF (239 kB)
Apsidal Motion in the Eclipsing Binary GG Ori
I. M. Volkov and Kh. F. Khaliullin
pp. 747-759 Full Text: PDF (342 kB)
Abundances of Carbon, Nitrogen, Oxygen, and Other Elements in the Atmosphere of the Giant 20 Peg
T. M. Rachkovskaya
pp. 760-764 Full Text: PDF (142 kB)
Evolution of Close Stellar Binaries with Black Holes under the Action of Gravitational Radiation and Magnetic and Induced Stellar Winds of the Donor
A. V. Tutukov and A. V. Fedorova
pp. 765-778 Full Text: PDF (462 kB)Archived web conten
Astronomy Reports V. 49, I. 03
No full textAstronomy Reports -- March 2005
Volume 49, Issue 3, pp. 167-257
Sources of Radiation in the Early Universe: The Equation of Radiative Transfer and Optical Distances
D. I. Nagirner and S. L. Kirusheva
pp. 167-178 Full Text: PDF (250 kB)
Polarization Effects in the Radiation of Magnetized Envelopes and Extended Accretion Structures
Yu. N. Gnedin, N. A. Silant'ev, M. Yu. Piotrovich, and M. A. Pogodin
pp. 179-189 Full Text: PDF (290 kB)
Properties of Stellar Trajectories in Numerical Dynamical Models of Open Star Clusters
V. M. Danilov and E. V. Leskov
pp. 190-200 Full Text: PDF (586 kB)
Analysis of the Dynamic Stability of Selected Multiple Stars with Weak Hierarchy
V. V. Orlov and R. Ya. Zhuchkov
pp. 201-216 Full Text: PDF (268 kB)
Atmospheric Elemental Abundances for the Components of the Multiple System ADS 11061. 41 Draconis
Yu. Yu. Balega, V. V. Leushin, and G. Weigelt
pp. 217-225 Full Text: PDF (232 kB)
Infrared Photometry of the Carbon Star RW LMi and an Axisymmetric Model for Its Dust Envelope
M. B. Bogdanov and O. G. Taranova
pp. 226-231 Full Text: PDF (237 kB)
IR Photometry of the Symbiotic Star BF Cyg: Detection of the Red Giant's Ellipsoidal Brightness Variability
B. F. Yudin[dagger], V. I. Shenavrin, E. A. Kolotilov, A. A. Tatarnikova, and A. M. Tatarnikov
pp. 232-241 Full Text: PDF (268 kB)
Radio Emission from Two Anomalous X-ray Pulsars
V. M. Malofeev, O. I. Malov, D. A. Teplykh, S. A. Tyul'bashev, and G. E. Tyul'basheva
pp. 242-249 Full Text: PDF (222 kB)
The Asymmetry Coefficient for Interstellar Scintillation of Extragalactic Radio Sources
V. I. Shishov, T. V. Smirnova, and S. A. Tyul'bashev
pp. 250-257 Full Text: PDF (224 kB)Archived web conten
Astronomy Letters, V. 31, I. 03
No full textAstronomy Letters -- March 2005
Volume 31, Issue 3, pp. 147-219
Constraints on the Photon Charge from Observations of Extragalactic Sources
V. V. Kobychev and S. B. Popov
pp. 147-151 Full Text: PDF (150 kB)
Global Properties of Nearby Galaxies in Various Environments
I. D. Karachentsev and A. V. Kasparova
pp. 152-159 Full Text: PDF (356 kB)
The Gas Content in Galactic Disks: Correlation with Kinematics
A. V. Zasov and A. A. Smirnova
pp. 160-170 Full Text: PDF (366 kB)
Parameters of the Spiral Structure of the Galaxy from Data on Open Star Clusters
M. E. Popova and A. V. Loktin
pp. 171-178 Full Text: PDF (217 kB)
Interaction of the Supernova Remnant HB3 with the Ambient Interstellar Gas
I. V. Gosachinskii
pp. 179-185 Full Text: PDF (254 kB)
Strong Cosmic-Ray Scattering in an Anisotropic Random Magnetic Field
Yu. P. Mel'nikov and I. N. Toptygin
pp. 186-193 Full Text: PDF (192 kB)
The SCORPIO Universal Focal Reducer of the 6-m Telescope
V. L. Afanasiev and A. V. Moiseev
pp. 194-204 Full Text: PDF (476 kB)
Moments of Inertia and the Chandlerian Period for Two- and Three-Layer Models of the Galilean Satellite Io
V. N. Zharkov and A. L. Sobisevich
pp. 205-212 Full Text: PDF (198 kB)
Analysis of the Neighborhood of the 2 : 1 Resonance in the Equal-Mass Three-Body Problem
A. I. Martynova, V. V. Orlov, and L. L. Sokolov
pp. 213-219 Full Text: PDF (310 kB)Archived web conten
Astronomy Reports V. 49, I. 03
No full textdc.description[en_US]Astronomy Reports -- March 2005
Volume 49, Issue 3, pp. 167-257
Sources of Radiation in the Early Universe: The Equation of Radiative Transfer and Optical Distances
D. I. Nagirner and S. L. Kirusheva
pp. 167-178 Full Text: PDF (250 kB)
Polarization Effects in the Radiation of Magnetized Envelopes and Extended Accretion Structures
Yu. N. Gnedin, N. A. Silant'ev, M. Yu. Piotrovich, and M. A. Pogodin
pp. 179-189 Full Text: PDF (290 kB)
Properties of Stellar Trajectories in Numerical Dynamical Models of Open Star Clusters
V. M. Danilov and E. V. Leskov
pp. 190-200 Full Text: PDF (586 kB)
Analysis of the Dynamic Stability of Selected Multiple Stars with Weak Hierarchy
V. V. Orlov and R. Ya. Zhuchkov
pp. 201-216 Full Text: PDF (268 kB)
Atmospheric Elemental Abundances for the Components of the Multiple System ADS 11061. 41 Draconis
Yu. Yu. Balega, V. V. Leushin, and G. Weigelt
pp. 217-225 Full Text: PDF (232 kB)
Infrared Photometry of the Carbon Star RW LMi and an Axisymmetric Model for Its Dust Envelope
M. B. Bogdanov and O. G. Taranova
pp. 226-231 Full Text: PDF (237 kB)
IR Photometry of the Symbiotic Star BF Cyg: Detection of the Red Giant's Ellipsoidal Brightness Variability
B. F. Yudin[dagger], V. I. Shenavrin, E. A. Kolotilov, A. A. Tatarnikova, and A. M. Tatarnikov
pp. 232-241 Full Text: PDF (268 kB)
Radio Emission from Two Anomalous X-ray Pulsars
V. M. Malofeev, O. I. Malov, D. A. Teplykh, S. A. Tyul'bashev, and G. E. Tyul'basheva
pp. 242-249 Full Text: PDF (222 kB)
The Asymmetry Coefficient for Interstellar Scintillation of Extragalactic Radio Sources
V. I. Shishov, T. V. Smirnova, and S. A. Tyul'bashev
pp. 250-257 Full Text: PDF (224 kB)dc.description.contributor[en_US]dc.description.contributor[en_US
Astronomy Reports V. 45, I. 10
No full textAstronomy Reports -- October 2001
Volume 45, Issue 10, pp. 751-840
The Angular-Momentum Distribution in Axisymmetrical Galaxies
B. P. Kondratyev
pp. 751-754 Full Text: PDF (135 kB)
An Active Galactic Nucleus as a Massive Coaxial Pulsar: A Massive Central Object with a Keplerian Accretion Disk and Twisted MHD Jet
Ya. N. Istomin and B. V. Komberg
pp. 755-758 Full Text: PDF (128 kB)
Image Reconstruction for the Einstein Cross Gravitational Lens QSO 2237+0305
V. A. Belokurov, E. V. Shimanovskaya, M. V. Sazhin, A. G. Yagola, B. P. Artamonov, V. N. Shalyapin, and I. Khamitov
pp. 759-768 Full Text: PDF (317 kB)
Arc-Shaped and Spheroidal Stellar Complexes
Yu. N. Efremov
pp. 769-783 Full Text: PDF (702 kB)
The Chemical Compositions and Surface Structures of Two roAp Stars with Lithium Spots (HD 83368 and HD 60435)
A. V. Shavrina, N. S. Polosukhina, J. Zverko, V. Khalak, V. V. Tsymbal, and J. Ziznovský
pp. 784-796 Full Text: PDF (417 kB)
Parameters of the Dust Envelope of the Symbiotic Star CH Cygni
M. B. Bogdanov and O. G. Taranova
pp. 797-803 Full Text: PDF (243 kB)
Six-Day Modulation of the Quiescent Radio Emission of SS 433
S. A. Trushkin, N. N. Bursov, and Yu. V. Smirnova
pp. 804-815 Full Text: PDF (516 kB)
Generation of Large-Scale Magnetic Fields in Young Solar-Type Stars
L. L. Kitchatinov
pp. 816-823 Full Text: PDF (225 kB)
Parameters of the Turbulent Magnetic Field in the Solar Photosphere: Power Spectrum of the Line-of-Sight Field
V. I. Abramenko, V. B. Yurchyshyn, H. Wang, and P. R. Goode
pp. 824-833 Full Text: PDF (294 kB)
The Three-Dimensional Structure of the Solar Corona
S. L. Koutchmy, V. L. Merzlyakov, and M. M. Molodenskii
pp. 834-840 Full Text: PDF (643 kB)Archived web conten
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