Color Effects Associated with the 1999 Microlensing Brightness Peaks in Gravitationally Lensed Quasar Q2237+0305

Photometry of the Q2237+0305gravitational lens in VRI spectral bands with the 1.5-m telescope of the high-altitude Maidanak observatory in 1995-2000 is presented. Monitoring of Q2237+0305 in July-October 2000, made at nearly daily basis, did not reveal rapid (night-to-night and intranight) variations of brightness of the components during this time period. Rather slow changes of magnitudes of the components were observed, such as 0.08 mag fading of B and C components and 0.05 mag brightening of D in R band during July 23 - October 7, 2000. By good luck three nights in 1999 were almost at the time of the strong brightness peak of image C, and approximately in the middle of the ascending slope of the image A brightness peak. The C component was the most blue one in the system in 1998 and 1999, having changed its (V-I) color from 0.56 mag to 0.12 mag since August 1997, while its brightness increased almost 1.2 mag during this time period. The A component behaved similarly between August 1998 and August 2000, having become 0.47 mag brighter in R, and at the same time, 0.15 mag bluer. A correlation between the color variations and variations of magnitudes of the components is demonstrated to be significant and reaches 0.75, with a regression line slope of 0.33. A color (V-I) vrs color (V-R) plot shows the components settled in a cluster, stretched along a line with a slope of 1.31. Both slopes are noticeably smaller than those expected if a standard galactic interstellar reddening law were responsible for the differences between the colors of images and their variations over time. We attribute the brightness and color changes to microlensing of the quasar's structure, which we conclude is more compact at shorter wavelengths, as predicted by most quasar models featuring an energizing central source.Comment: 14 pages, 7 figures, LaTeX, submitted to A&

Features of atomic and molecular beams passage through capillary systems in the presence of evanescent light waves

A model of the transverse cooling of atoms in the field of a surface light wave inside a glass capillary is considered. The attenuation coefficient for transverse oscillations of atom in a microcapillary is estimated, and the length of effective atom cooling is calculated. A 3D model is constructed. The possibility for the practical application of this phenomenon both to develop the technology of atomic lithography and to fabricate the nanostructures is considered

MEASURING THE EFFECTIVENESS OF THE PROCESS OF THE SCIENTIFIC RESEARCH OF A HIGHER EDUCATIONAL INSTITUTION

Взяв за основу измерение эффективности процесса научного исследования и исследовательской работы в вузах, автор предлагает объединить принципы повторения жизненного цикла новой идеи от научного исследования и исследовательской работы до вступления и более поздннего смешения с измерением экономической эффективности.As the basis of the estimates of the efficiency of the process of the scientific research and the research developments of higher educational institutions it is proposed to assume the principles of retracing the vital cycle of the innovation from scientific research and the research developments up to introduction and its subsequent diffusion with the estimate of economic efficiency done stage by stage, the system diagnostics of the signs of the innovation process in the branch generated by scientific research and the research developments of a higher educational institution and the estimate of the efficiency of their influence taking into account the objective lag between innovation and its introduction, taking into account possible consequences of innovation for its participants the estimate of all kinds of the economic efficiency of innovative designs generated by the corresponding scientific research and research developments of a higher educational institution

Time delays in PG1115+080: new estimates

We report new estimates of the time delays in the quadruple gravitationally lensed quasar PG1115+080, obtained from the monitoring data in filter R with the 1.5-m telescope at the Maidanak Mountain (Uzbekistan, Central Asia) in 2004-2006. The time delays are 16.4 days between images C and B, and 12 days between C and A1+A2, with image C being leading for both pairs. The only known estimates of the time delays in PG1115 are those based on observations by Schechter et al. (1997) -- 23.7 and 9.4 days between images C and B, C and A1+A2, respectively, as calculated by Schechter et al., and 25 and 13.3 days as revised by Barkana (1997) for the same image components with the use of another method. The new values of time delays in PG 1115+080 may be expected to provide larger estimates of the Hubble constant thus decreasing a diversity between the H_0 estimates taken from gravitationally lensed quasars and with other methods.Comment: 5 pages, 2 figures, Accepted for publication in MNRAS Letter

К чему приводит неограниченное право на развод?

Article is devoted to changes of the Russian family legislation in the XX century. Laws of the Russian Empire provided very few reasons for divorce. At the end of XIX - the beginning of the XX centuries the part of the intellectuals demanded liberalization of the legislation. The reforms which happened after October revolution of 1917 considerably changed all system of family values that led to strengthening of crisis of a family.Статья посвящена изменениям российского семейного законодательства в ХХ в. Законы Российской империи предусматривали немного причин для развода. В конце ХIХ - начале ХХ вв. часть интеллигенции требовала либерализации законодательства. Реформы, произошедшие после Октябрьской революции 1917 г., радикально изменили всю систему семейных ценностей, что привело к усилению кризиса семьи

PG 1115+080: variations of the A2/A1 flux ratio and new values of the time delays

We report the results of our multicolor observations of PG 1115+080 with the 1.5-m telescope of the Maidanak Observatory (Uzbekistan, Central Asia) in 2001-2006. Monitoring data in filter R spanning the 2004, 2005 and 2006 seasons (76 data points) demonstrate distinct brightness variations of the source quasar with the total amplitude of almost 0.4 mag. Our R light curves have shown image C leading B by 16.4d and image (A1+A2) by 12d that is inconsistent with the previous estimates obtained by Schechter et al. in 1997 - 24.7d between B and C and 9.4d between (A1+A2) and C. The new values of time delays in PG 1115+080 must result in larger values for the Hubble constant, thus reducing difference between its estimates taken from the gravitational lenses and with other methods. Also, we analyzed variability of the A2/A1 flux ratio, as well as color changes in the archetypal "fold" lens PG 1115+080. We found the A1/A2 flux ratio to grow during 2001-2006 and to be larger at longer wavelengths. In particular, the A2/A1 flux ratio reached 0.85 in filter I in 2006. We also present evidence that both the A1 and A2 images might have undergone microlensing during 2001-2006, with the descending phase for A1 and initial phase for A2. We find that the A2/A1 flux ratio anomaly in PG 1115 can be well explained both by microlensing and by finite distance of the source quasar from the caustic fold.Comment: 14 pages, 7 figures, 8 tables, Accepted for publication in MNRA

Synthesis of Lithium Phosphorus Oxynitride (LiPON) Thin Films by Li3 PO4 Anodic Evaporation in Nitrogen Plasma of a Low-Pressure Arc Discharge

Thin amorphous films of LiPON solid electrolyte were prepared by anodic evaporation of lithium orthophosphate Li3 PO4 in an arc discharge with a self-heating hollow cathode at a nitrogen pressure of 1 Pa. Distribution of the arc current between two electrodes having an anode potential provided independent control of the evaporation rate of Li3 PO4 and the density of nitrogen plasma. Stabilization of the evaporation rate was achieved using a crucible with multi-aperture cover having floating potential. The existence of a threshold value of discharge current (40 A) has been established, which, upon reaching ionic conductivity over 10−8 S/cm, appears in the films. Probe diagnostics of discharge plasma were carried out. It has been shown that heating the films during deposition by plasma radiation to a temperature of 200◦ C is not an impediment to achieving high ionic conductivity of the films. Dense uniform films of LiPON thickness 1 µm with ionic conductivity up to 1 × 10−6 S/cm at a deposition rate of 4 nm/min are obtained. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.Funding: The studies of the coatings were carried out with the financial support of Russian Federation represented by Ministry of Science and Higher Education (project No. 075-15-2021-1348) within the framework of event No. 1.1.12

The role of salt bridges, charge density, and subunit flexibility in determining disassembly routes of protein complexes

Mass spectrometry can be used to characterize multiprotein complexes, defining their subunit stoichiometry and composition following solution disruption and collision-induced dissociation (CID). While CID of protein complexes in the gas phase typically results in the dissociation of unfolded subunits, a second atypical route is possible wherein compact subunits or subcomplexes are ejected without unfolding. Because tertiary structure and subunit interactions may be retained, this is the preferred route for structural investigations. How can we influence which pathway is adopted? By studying properties of a series of homomeric and heteromeric protein complexes and varying their overall charge in solution, we found that low subunit flexibility, higher charge densities, fewer salt bridges, and smaller interfaces are likely to be involved in promoting dissociation routes without unfolding. Manipulating the charge on a protein complex therefore enables us to direct dissociation through structurally informative pathways that mimic those followed in solution

Spasticity: Diagnosis and Treatment

This chapter presents the technology of spasticity treatment—from diagnosis and treatment to quality control of treatment and rehabilitation. The diagnosis is based on methods of manual testing and differential diagnosis of spastic muscles, methods of quantitative assessment of spasticity on the basis of the Tardieu scale. The methodical development of the Tardieu scale with variants of its full and reduced use is presented. The basic patterns of spasticity of the upper and lower limbs are given. Schemes of management of patients with spasticity with indication of control points for application of methods of an assessment that shows efficiency of treatment and rehabilitation are presented. The methodology of spasticity treatment using botulinum neurotoxin (BoNT), including ultrasonic navigation, orientation of intramuscular motor endpoint of muscles (IME), is described. IME location diagrams and ultrasound picture of muscles are presented. Scales are proposed to assess the effect of spasticity on the functions of the upper and lower limbs. In conclusion, a variant of complex treatment of spasticity and original patient models are proposed, the use of which makes it possible to calculate the cost of BoNT