RePAST: Relative Pose Attention Scene Representation Transformer

The Scene Representation Transformer (SRT) is a recent method to render novel views at interactive rates. Since SRT uses camera poses with respect to an arbitrarily chosen reference camera, it is not invariant to the order of the input views. As a result, SRT is not directly applicable to large-scale scenes where the reference frame would need to be changed regularly. In this work, we propose Relative Pose Attention SRT (RePAST): Instead of fixing a reference frame at the input, we inject pairwise relative camera pose information directly into the attention mechanism of the Transformers. This leads to a model that is by definition invariant to the choice of any global reference frame, while still retaining the full capabilities of the original method. Empirical results show that adding this invariance to the model does not lead to a loss in quality. We believe that this is a step towards applying fully latent transformer-based rendering methods to large-scale scenes

Control of the nonlinear frequency shift for the spin-transfer nanooscillator using a bias magnetic field

We investigated the possibilities of controlling the nonlinear frequency shift of the magnetization oscillations in a spin-transfer nanoscillator by varying the magnitude and direction of the bias magnetic field. We considered both isotropic ferromagnetic materials and crystals with uniaxial and cubic crystallographic anisotropies. We have shown that achieving a zero nonlinear frequency shift is possible with a certain orientation of the bias magnetic field vector. The results of the theoretical analysis based on the method of Hamiltonian formalism are in good agreement with the micromagnetic simulations. Our research reveals the way to control the frequency tuning of a spin transfer nanoscillator, which is crucial for spintronic signal generation devices.Comment: 6 pages, 3 figure

Some Immunological and Hematological Parameters among Refugees in Kawergosk Camp – Erbil Governorate

The study included 258 Syrian refugees of different ages and sex and another 60 volunteers as control group (C.G). These refugees were in Kawergosk camp in Erbil Governorate. Blood was collected from each individual for the estimation of white blood cell (WBC), eosinophil, iron, hemoglobin (Hb), and immunoglobulin E (IgE) levels. Mean serum levels of IgE among male and female refugees showed highly significant increasing when compared to C.G. Most of the refugees had normal iron levels, where iron concentrations were more than 65 mg/dl among 67 males and more than 50 mg/dl among 104 females and 48 children, while some had iron deficiency in which the majority were female (9 males, 24 females, and 6 children had iron deficiency). In addition, Hb concentrations were normal among 65 males (more than 13.0 g/dl), 89 females (more than 11.0 g/dl), and 48 children (more than 12.0 g/dl). However, anemia was found among 8 men, 42 women, and 6 children. It was revealed that there was a highly significant rising in eosinophils in male and female refugees in comparison to C.G. WBC count is non-significantly slightly increased in both male’s and female’s refugees when compared to C.G

Dynamics of Ethno-Social Structure and Social Wellbeing of Population in Polyethnic Region (by Example of Republic of Bashkortostan)

The issue of ethno-social structure dynamics and ethno-social wellbeing of the population in the Republic of Bashkortostan is considered on the basis of the results of the censuses and data of ethno-sociological surveys conducted in 1989-2010 in the region. Special attention is paid to the representation of a particular ethnic group in the leading sectors of industry, administration, education. For a better vision of ethno-social development of the Republic in general the tables with data on types of economic activities and social identification are given. The results of a comparative analysis of social structure of the major ethnic groups of Bashkortostan are presented: Russians, Bashkirs, Tatars. The paper raised the question of their unequal access to power and management structures, to the budget places in universities etc. An attempt was made to prove the direct influence of the transformation of ethno-social structure on social well-being of the population and their correlation. The authors come to the conclusion that fundamental changes that occurred during the market economy brought about changes in ethno-social population structure. There are new social stratas (classes), which in the scientific literature began to be divided according to their social status and well-being

Crystal structure and interaction of 6-amino coumarin with nitrite ion for its selective fluorescence detection

6-Amino coumarin has been established as an efficient nitrite ion selective fluorescent sensor. The developed method shows linearity up to 1.6 × 10 -6 molL -1 of nitrite ion concentration. Interference from other common anions is almost negligible. The reagent shows strong binding affinity towards nitrite ion as evident from its binding constant value (5.8 × 10 4), estimated by Stern-Volmer method. Some real samples were analyzed. Single crystal X-ray structure of the reagent is reported. Preliminary computational studies on the molecular level interaction between the reagent and nitrite ion were performed by density functional theory (DFT, B3LYP) method. Copyright © 2012 Taylor and Francis Group, LLC

Electrically tunable detector of THz-frequency signals based on an antiferromagnet

A concept of an electrically tunable resonance detector of THz-frequency signals based on antiferromagnetic/heavy metal (AFM/HM) hetero-structure is proposed. The conversion of a THz-frequency input signal into DC voltage is done using the inverse spin Hall effect in an (AFM/HM) bilayer. An additional bias DC current in the HM layer can be used to vary the effective anisotropy of the AFM, and, therefore, to tune the AFMR frequency. The proposed AFM/HM hetero-structure works as a resonance-type quadratic detector which can be tuned by the bias current in the range of at least 10 percent of the AFMR frequency and our estimations show that the sensitivity of this detector could be comparable to that of modern detectors based on the Schottky, Gunn or graphene-based diodes

Ethnodemography of Bashkirs in Regions of Russia (1970—2010)

The issues of ethno-demographic and ethno-linguistic development of the Bashkir population in the regions of the Russian Federation are considered. It is noted that the tendencies of demographic processes among the Bashkirs in the regions and in the republic of the same name are very different. The features of the ethnodemographic development of the Bashkirs in the regions of their historical settlement are shown, in which general trends coincide with the demographic processes in the country as a whole. It cannot be said about the Republic of Bashkortostan, which is characterized by sharp fluctuations in the size of the titular ethnic group. The dynamics of the ethnic and linguistic identity of the Bashkir population in the regions of historical settlement is revealed in a comparative aspect with the subjects to which the Bashkirs moved at a later time and in which their number is a small proportion. The novelty of the study lies in the fact that it was the first to analyze the ethno-demographic and ethno-linguistic aspects of the development of the Bashkirs in the Russian Federation, including in the regions of their historical settlement. The relevance of the study is due to the fact that the issue of the demographic development of the Bashkir population at the present stage, especially in the republic of the same name, has acquired an ethnopolitical discourse. It has been proven that, despite the policy of reviving ethnicity and the native language, the Bashkirs, like other peoples, are gradually losing it in favor of being recognized as a native Russian