Autoencoders for semantic segmentation of rice fungal diseases

Received: January 4th, 2021 ; Accepted: March 22th, 2021 ; Published: March 31th, 2021 ; Correspondence: [email protected] the article, the authors examine the possibility of automatic localization of rice fungal infections using modern methods of computer vision. The authors consider a new approach based on the use of autoencoders - special neural network architectures. This approach makes it possible to detect areas on rice leaves affected by a particular disease. The authors demonstrate that the autoencoder can be trained to remove affected areas from the image. In some cases, this allows one to clearly highlight the affected area by comparing the resulting image with the original one. Therefore, modern architectures of convolutional autoencoders provide quite acceptable visual quality of detection

South-Siberian mountain mires: Perspectives on a potentially vulnerable remote source of biodiversity

Changes in climate, land-use and pollution are having disproportionate impacts on ecosystems and biodiversity of arctic and mountain ecosystems. While these impacts are well-documented for many areas of the Arctic and alpine regions, some isolated and inaccessible mountain areas are poorly studied. Furthermore, even in well-studied regions, assessments of biodiversity and species to environmental change are biased towards vascular plants and cryptogams, particularly bryophytes are far less represented. This paper aims to document the environments of the remove and inaccessible Altai-Sayan mountain mires and particularly their bryofloras where threatened specias exist and species new to the regional flora are still being found. As these mountain mires are relatively inaccessible, changes in drivers of change ad their ecosystem and biodiversity impacts have not been monitored. However, the remoteness of the mires has so far protected them and their species. In this study, we describe the mires, their bryophyte species and the expected impacts of environmental stressors to bring attention to the urgency of documenting change and conserving these pristine ecosystems

Representatives of the concept person social in the sphere of nicknames in the Republic of Komi

Nicknames of a person in the language of the people of Komi are described, place of residence and explanation why this particular nickname was given to this or that person are mentioned.Рассматриваются конкретные прозвища человека в языке народа коми с указанием места его проживания и объяснением, почему именно это прозвище дано тому или иному человеку

Philosofy as a mean of socialization of future doctor

The article discusses the actual problem of socialization and the formation of a future doctor through philosophy. That philosophy is the main mechanism for the formation of a future doctor. Context of the work is the idea that in contemporary Russian society and higher education system in the process of identity formation (a doctor) the role of philosophy as an important humanitarian component is markedly reduced, which may further lead to negative consequences. The author uses the analysis of theoretical sources and the results of specific empirical research to confirm his hypothesis.В статье рассматривается актуальная проблема социализации и становления личности будущего врача посредством философии. Именно философия является главным механизмом формирования личности будущего врача. Контекстом работы является идея, что в современном российском обществе и системе высшего образования в процессе формирования личности специалиста (врача) роль философии как важной гуманитарной составляющей заметно снижается, что может в дальнейшем привести к негативным последствиям. Автор использует как анализ теоретических источников, так и результаты конкретных эмпирических исследований для подтверждения своей гипотезы

Hybridization and spin-orbit coupling effects in quasi-one-dimensional spin-1/2 magnet Ba3Cu3Sc4O12

We study electronic and magnetic properties of the quasi-one-dimensional spin-1/2 magnet Ba3Cu3Sc4O12 with a distinct orthogonal connectivity of CuO4 plaquettes. An effective low-energy model taking into account spin-orbit coupling was constructed by means of first-principles calculations. On this basis a complete microscopic magnetic model of Ba3Cu3Sc4O12, including symmetric and antisymmetric anisotropic exchange interactions, is derived. The anisotropic exchanges are obtained from a distinct first-principles numerical scheme combining, on one hand, the local density approximation taking into account spin-orbit coupling, and, on the other hand, projection procedure along with the microscopic theory by Toru Moriya. The resulting tensors of the symmetric anisotropy favor collinear magnetic order along the structural chains with the leading ferromagnetic coupling J1 = -9.88 meV. The interchain interactions J8 = 0.21 meV and J5 = 0.093 meV are antiferromagnetic. Quantum Monte Carlo simulations demonstrated that the proposed model reproduces the experimental Neel temperature, magnetization and magnetic susceptibility data. The modeling of neutron diffraction data reveals an important role of the covalent Cu-O bonding in Ba3Cu3Sc4O12.Comment: 11 pages, 12 figure

Comparative analysis of modern led lamps

EN: The most popular types of LED lamps among local people are considered in this article. The most economical type in everyday life is presented in this research. UK: У статті розглядаються найпопулярніші види світлодіодних ламп серед місцевого населення. Найбільш економний типу повсякденному житті представлений у цьому дослідженні

Variability of Winter Wheat Quality Features in Northern Trans-Urals

The studies were carried out in laboratory conditions on the basis of the Agrotechnological Institute of Northern Trans-Ural State Agricultural University. The studies include 5 varieties of winter wheat grown in 2009-2011 in three agroclimatic zones of Tyumen Region: sub-regional (Nizhnetavdinsky state crop testing site), northern forest steppe (Yalutorovsky state crop testing site), southern forest steppe (Berduzhsky state crop testing site). Bashkirskaya variety – 10 (45 g) demonstrated the highest potential in the formation of a 1000 grain weight. The same variety has the highest range of variability (11.7 g) and the variability coefficient (10.9%) indicates average variability. Other varieties showed minor variability of characteristic (V = 8.7-9.9%). Winter wheat varieties varied in terms of average hardness, at the same time the level of values of all varieties (66-77%) corresponded to the standards of high classes according to GOST. Novosibirskayaaya 32 (61-93%) and Bashkirskaya 10 (60-86%) varieties were the most stable in forming the required value of characteristic. The average gluten content in a grain of winter wheat varieties was corresponded to the standards of the third class according to GOST. Novosibirskaya 32 variety (V = 8.5%) had minor variability of the characteristic, while other varieties demonstrated the average variability. A significant proportion of the effect of the “variety” factor on the variability of such features as a 1000 grain weight (56.5%), grain-unit (50.5%) and hardness (45.1%) was established. The amount of gluten depended more on the growing environment (35.5%) and interaction of factors (39.3%). The quality of gluten was much influenced by the growing environment (52.2%)