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Projecting a modern textbook as personality developing educational environment [PDF]
ARPHA Proceedings, 2021 Due to changing pedagogical points of view about the aim and the content of education points of view about the target and functions of a modern textbook as a means of teaching are being transformed as well.
Nataliya Khodyakova, Dmitry Khodyakov
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Assessment of Pollution in the Central Soils of Khuzestan Province with Potentially Toxic Elements (PTEs) and their Origins [PDF]
مجله آب و خاک, 2023 Introduction In recent years, soil contamination with potentially toxic elements (PTEs) has become a major problem in most parts of the world. PTEs are naturally generated from the pedogenesis in the soil and are formed mainly by rock weathering ...
N. Sahraei +3 more
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Study of student teachers’ creative activityduring the COVID-19 pandemic [PDF]
ARPHA Proceedings, 2022 Higher education has undergone a dramatic transformation during 2020 – 2021. The COVID-19 pandemic put forward a number of new requirements and demanded alternative mechanisms necessary for the life and work of universities. The experience has shown that
Nadezhda Kostyunina +2 more
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The effect of activity ratios, liquidity, and profitability on the dividend payout ratio
Indonesia Accounting Journal, 2021 Dividends are a significant factor in investors' investment interests, so that dividend policy is a critical factor for companies to retain their shareholders. On this purposes, the companies must improve financial performance, especially activity ratios,
Muhammad Arsyad +3 more
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Journal of Bone and Joint Diseases, 2023 Backgroun: Management of Calcaneum fractures includes non-operative and operative management. Their has been various controversies regarding the same .
Gyaneshwar Tank +2 more
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Investigation of Always Present and Spectrum Sensing based Incumbent Emulators [PDF]
AUT Journal of Electrical Engineering, 2019 Cognitive radio (CR) technology has been suggested for effective use of spectral resources. Spectrum sensing is one of the main operations of CR users to identify the vacant frequency bands.
Abbas Ali Sharifi
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CR Embedded Submanifolds of CR Manifolds [PDF]
Memoirs of the American Mathematical Society, 2019 We develop a complete local theory for CR embedded submanifolds of CR manifolds in a way which parallels the Ricci calculus for Riemannian submanifold theory. We define a normal tractor bundle in the ambient standard tractor bundle along the submanifold and show that the orthogonal complement of this bundle is not canonically isomorphic to the standard
Curry, Sean N., Gover, A. Rod
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ON HOMOGENEOUS CR MANIFOLDS AND THEIR CR ALGEBRAS [PDF]
International Journal of Geometric Methods in Modern Physics, 2006 In this paper we show some results on homogeneous CR manifolds, proved by introducing their associated CR algebras. In particular, we give different notions of nondegeneracy (generalizing the usual notion for the Levi form) which correspond to geometrical properties for the corresponding manifolds.
A. Altomani, MEDORI, Costantino
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CR Manifolds Admitting a CR Contraction [PDF]
Journal of Geometric Analysis, 2010 We classify the germs of $\mathcal{C}^\infty$ CR manifolds that admit a smooth CR contraction. We show that such a CR manifold is embedded into $\CC^n$ as a real hypersurface defined by a polynomial defining function consisting of monomials whose degrees are completely determined by the extended resonances of the contraction.
Kim, KT, Yoccoz, JC
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Adsorption of Nickel and Chromium From Aqueous Solutions Using Copper Oxide Nanoparticles: Adsorption Isotherms, Kinetic Modeling, and Thermodynamic Studies [PDF]
Avicenna Journal of Environmental Health Engineering, 2019 The research was conducted with an aim to assess the efficiency of copper oxide nanoparticles as an adsorbent to remove Ni and Cr. The effect of pH, adsorbent dosage, contact time, initial concentration of metals (Ni and Cr) on the adsorption rate was ...
Raziyeh Hosseini +2 more
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