Results 61 to 70 of about 1,091,879 (286)

Constructing Premaximal Binary Cube-free Words of Any Level [PDF]

EPTCS 63, 2011, pp. 168-178, 2011
We study the structure of the language of binary cube-free words. Namely, we are interested in the cube-free words that cannot be infinitely extended preserving cube-freeness. We show the existence of such words with arbitrarily long finite extensions, both to one side and to both sides.
arxiv   +1 more source

Phenology of hard ticks in southern Ural

Russian Journal of Parasitology, 2017
Objective of research. Hard ticks as blood sucking ectoparasites and vectors of animal and human diseases are considered as one of the most important arthropods. Ticks can transmit a variety of diseases among livestock. They are distributed throughout Southern Ural, affecting cattle, horses, sheep, goats and dogs.Materials and methods.
E. V. Novosad, P. I. Khristianovsky, I. V. Byistrov, V. V. Belimenko   +3 more
openaire   +3 more sources

The Architecture of Large Kurgans of the Scythians and Their Periphery: A Challenge for Magnetometer Prospections in the Eurasian Steppe Belt

Archaeological Prospection, EarlyView.
ABSTRACT The burial mounds of the early Iron Age, which we will refer to below as kurgans, from the nomadic equestrian warriors of Eurasia, form a very complex group of archaeological monuments. Archaeological excavations in Aržan 2 (Siberia) and Aleksandropol (Ukraine) show that the large burial mounds are complex architectural constructions.
Jörg W. E. Fassbinder, Anton Gass
wiley   +1 more source

Relation between the thyroid diseases prevalence and doses of radiation exposure in the individuals relocated from radioactively contaminated areas in South Urals

Радиационная гигиена, 2022
The objective of this work was to reveal the relations between thyroid pathology prevalence and absorbed thyroid radiation dose from 131I in the individuals relocated into Ozyorsk from the radioactively contaminated areas of South Urals.
E. I. Rabinovich, S. V. Povolotskaya, M. O. Degteva, E. I. Tolstykh   +3 more
doaj   +1 more source

Using the HClO4–H2O2 System for Efficient Platinum Leaching: Optimal Conditions and Kinetics

ChemPlusChem, EarlyView.
GA: The platinum leaching using HClO4 and H2O2 is studied. For each HClO4 concentration, an H2O2/HClO4 = 2.5 ratio optimizes the kinetics. The best operating conditions are ≈70 °C, [HClO4] 3 m, and [H2O2] 7.2 m. The leaching process is governed by diffusion in the boundary layer and chemical reaction. In this new extraction process, Cl2(g) is generated
Anailda Alvarado‐Gómez, Roberto Pérez‐Garibay, Juan Carlos Fuentes‐Aceituno, Ramón Arellano‐Piña, Daniel Mendieta‐Georges   +4 more
wiley   +1 more source

Tririum in urine in residents of Ozyorsk, the Chelyabinsk region in 2016

Радиационная гигиена, 2019
Objectives. To create the model of relation between volume activity of tritium in urine of Ozyorsk residents and physical and biological factors. To define the correspondence of internal exposure doses of Ozyorsk residents obtained from tritium to ...
L. V. Finashov, V. V. Vostrotin, A. Yu. Yanov   +2 more
doaj   +1 more source

An integrative model for understanding cryptocurrency investment‐related behaviours: A comparison between millennials and pre‐millennials

International Journal of Finance &Economics, EarlyView.
Abstract This article adopts the value‐attitude‐behavioural (VAB) and attitude‐behaviour‐context (ABC) theoretical lenses to develop an integrative model to examine attitudinal and behavioural responses to cryptocurrency investment. It also investigates the moderating role of generational differences (pre‐millennials vs. millennials).
Christian Nedu Osakwe, Oluwatobi A. Ogunmokun, Islam Elgammal, Darya Baeva, Victoria Kamneva   +4 more
wiley   +1 more source

Incidence trend for colorectal cancer in the cohort of workers exposed to ionizing radiation

Радиационная гигиена, 2020
Colorectal cancer is one of the most common malignant neoplasms. Main causes inducing this type of cancer are factors related to the life style and occupational exposures to chemical agents.
G. V. Zhuntova, T. V. Azizova, M. V. Bannikova, T. P. Zavarukhina   +3 more
doaj   +1 more source

Assessment of remediation potential of flora of the Southern Urals [PDF]

IOP Conference Series: Earth and Environmental Science, 2019
Abstract Soil degradation caused by human activities currently remains one of the most important environmental problems. Phytoremediation is a group of technologies for environmental clean-up and soil restoration by plants. The level of soil contamination, the bioavailability of pollutants, as well as the accumulation of metals by the ...
T. N. Vasilyeva, LV Galaktionova, S. V. Lebedev   +2 more
openaire   +1 more source

Raman Spectroscopy of Amphibole Inclusions in Emeralds

Journal of Raman Spectroscopy, EarlyView.
Emeralds containing elongated amphibole inclusions from Austria, Russia, Zambia and Zimbabwe were investigated with an optical microscope and Raman spectroscopy. The inclusions have various sizes and shapes; curved inclusions are frequently observed in emeralds from Zimbabwe and rarely in those from Zambia.
Stefanos Karampelas, Ugo Hennebois, Aurélien Delaunay   +2 more
wiley   +1 more source