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
doaj +3 more sources
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
doaj +1 more source
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
doaj +3 more sources
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
Cyclostationary and energy detection spectrum sensing beyond 5G waveforms
Electronic Research Archive, 2023 The cyclostationary spectrum (CS) method is one of the best at what it does because it effectively detects idle spectrum with low signal-to-noise ratios (SNR).
Arun Kumar +5 more
doaj +1 more source
An evaluation of the efficiency of cultural plants to remove heavy metals from growing mediu
Plant, Soil and Environment, 2005 Contamination of heavy metals in the environment is one of major concern because of their toxicity and threat to human life and the environment. Phytoextraction, using plants to extract heavy metals from contaminated soils is an emerging technology.
R. Hajiboland
doaj +1 more source
Transfer of trace elements with low soil mobility into plants
Plant, Soil and Environment, 2002 Trace elements with a low mobility and with a low transfer are Cu, As, Be, V, Cr, Hg. Copper has at low mobility an increased transfer quotient (content plant/soil). The lowest mobility and transfer show Cr and Hg.
J. Němeček +2 more
doaj +1 more source
Determination of Polychloroprene Content in Rubber Blend Containing Ethylene Propylene Diene Monomer by Infrared Techniques [PDF]
Journal of Aerospace Technology and Management, 2021 Ethylene propylene diene monomer rubber is used as flexible thermal protection for rocket engines, as well as in blends with polychloroprene, which can be applied in the aeronautical sector, and with great potential in the defense sector.
Paulo Santos Rigoli +7 more
doaj +1 more source