Changes in the ratio of plants with different mycorrhizal status in the course of pasture digression in the Southern Ural steppes

Trends in the proportions of plants differently interacting with mycorrhizal fungi in the course of pasture digression have been analyzed in the steppe zone of the Southern Urals. Estimates of species richness and abundance of plant groups with different mycorrhizal status have been obtained by comparing original data on the structure of phytocenoses with published data on the ability of plant species to form mycorrhizae. It has been shown that the proportions and abundance of obligate mycorrhizal species decrease significantly in the course of digression, with consequent increase in those of species less dependent on or independent of symbiosis with fungi, i.e., facultative mycorrhizal or obligate nonmycorrhizal plants. © 2013 Pleiades Publishing, Ltd

Preparation and characterization of Bi26–2xMn2xMo10O69-d and Bi26.4Mn0.6Mo10–2yMe2yO69-d(Me = V, Fe) solid solutions

Received: 06.06.2017; accepted: 23.06.2017; published: 14.07.2017.Single phase samples of bismuth molybdate, Bi26Mo10O69, doped with Mn on the bismuth sublattice and V, Fe on the molybdenum sublattice were found to crystallize in the triclinic Bi26Mo10O69 structure at low doping levels and in the monoclinic Bi26Mo10O69 structure - at higher dopant concentration. The assumption that all Mn ions have an oxidation state of +2 was confirmed by means of magnetic measurement results analysis using Curie-Weiss law. Conductivity was investigated using impedance spectroscopy. The conductivity of Bi26.4Mn0.6Mo9.6Fe0.4O69-d was 1.2*10-2 S*cm-1 at 973 K and 2.2*10-4 S*cm-1 at 623 K, and the conductivity of Bi26.4Mn0.6Mo9.2V0.8O69-d was 2.2*10-3 S*cm-1 at 973 K and 2.2*10-5 S*cm-1 at 623 K

Quantum Interference Effects in Slowly Rotating NUT Space-time

General relativistic quantum interference effects in the slowly rotating NUT space-time as the Sagnac effect and the phase shift effect of interfering particle in neutron interferometer are considered. It was found that in the case of the Sagnac effect the influence of NUT parameter is becoming important due to the fact that the angular velocity of the locally non rotating observer must be larger than one in the Kerr space-time. In the case of neutron interferometry it is found that due to the presence of NUT-parameter an additional term in the phase shift of interfering particle emerges. This term can be, in principle, detected by sensitive interferometer and derived results can be further used in experiments to detect the gravitomagnetic charge. Finally, as an example, we apply the obtained results to the calculation of the UCN (ultra-cold neutrons) energy level modification in the slowly rotating NUT space-time.Comment: 11 pages, 1 figure, accepted for publication in Int. J. Mod. Phys. D; added reference

Effect of carbamylated darbepoetin administration at different doses on the thymus and spleen structure of rats

In this article, the morphological features of the structure of the thymus and spleen under the influence of carbamylated darbepoetin in different doses were studied. The material for the study was 40 white male rats of the Wistar bree

Peculiaridades do crescimento do ouro-prazer para oleaginosas e seu uso na produção de ração na zona não-chernozem da Rússia

At present, gold-of-pleasure attracts wide attention due to its unpretentiousness and early maturity, high and stable yield. In Russia, edible oils are mainly obtained from sunflower seeds, soybeans, rapeseed and seeds of other oil plants (flax, mustard, castor oil plant and bird rape) and are processed in relatively small amounts. Gold-of-pleasure (Camelina sativa (L.) Crantz) in the Non-Chernozem zone of Russia is not a traditional crop. The expansion of areas for this crop sowing is constrained by the lack of developed recommendations on the technology of its cultivation. This is the basis of the research. The purpose of this experiment was to identify the features of forming gold-of-pleasure productivity and optimizing the main elements of varietal technology (seeding rate and seeding time) in the conditions of the region. The research was carried out at Ryazan State Agrotechnological University, on the experimental fields of the agrotechnological experimental station of Ryazan oblast, on gray forest soils. The object of the research is gold-of-pleasure, variety Yubilyar. It has been revealed that in order to obtain a stable yield of gold-of-pleasure, it is necessary to have at least 420-440 plants per 1 m² to harvest, and 400-450 plants per 1 m² are considered the optimal density. Increasing the seeding rate, above 8 million pcs. of the seeds / ha, led to the formation of a strongly crowded crop, which ultimately contributed to a decrease of the yield and seeds quality. The most optimal seeding rate for gold-of-pleasure is 7.0 million germinated seeds per hectare. The overestimation of the norm to 8.0 million pieces / ha did not significantly increase the yield, but led to an excessive consumption of seeds, deteriorated seed quality, the risk of lodging and diseases. The best seeding time in experiments is the first decade of May.En la actualidad, el oro del placer atrae una amplia atención debido a su falta de pretensiones y madurez temprana, rendimiento alto y estable. En Rusia, los aceites comestibles se obtienen principalmente de semillas de girasol, soja, colza y semillas de otras plantas oleaginosas (linaza, mostaza, aceite de ricino y coles) y se procesan en cantidades relativamente pequeñas. El oro del placer (Camelina sativa (L.) Crantz) en la zona de Non-Chernozem de Rusia no es un cultivo tradicional. La expansión de las áreas para esta siembra de cultivos está limitada por la falta de recomendaciones desarrolladas sobre la tecnología de su cultivo. Esta es la base de la investigación. El propósito de este experimento fue identificar las características de la formación de la productividad del oro del placer y la optimización de los elementos principales de la tecnología varietal (tasa de siembra y tiempo de siembra) en las condiciones de la región. La investigación se llevó a cabo en la Universidad Agrotecnológica Estatal de Ryazan, en los campos experimentales de la estación experimental agrotecnológica de Ryazan oblast, en suelos de bosques grises. El objeto de la investigación es el oro del placer, variedad Yubilyar. Se ha revelado que, para obtener un rendimiento estable de oro de placer, es necesario contar con al menos 420-440 plantas por cosecha de 1 m², y 400-450 plantas por 1 m² se consideran la densidad óptima. Incrementando la tasa de siembra, por encima de 8 millones de pcs. de las semillas / ha, llevó a la formación de un cultivo muy poblado, que en última instancia contribuyó a una disminución del rendimiento y la calidad de las semillas. La tasa de siembra más óptima para el oro del placer es de 7.0 millones de semillas germinadas por hectárea. La sobrestimación de la norma a 8,0 millones de piezas / ha no aumentó significativamente el rendimiento, pero condujo a un consumo excesivo de semillas, deterioro de la calidad de las semillas, el riesgo de alojamiento y enfermedades. El mejor tiempo de siembra en experimentos es la primera década de mayo.No presente, o ouro-do-prazer atrai grande atenção devido à sua despretensão e maturidade precoce, rendimento alto e estável. Na Rússia, os óleos comestíveis são obtidos principalmente a partir de sementes de girassol, soja, colza e sementes de outras plantas oleaginosas (linho, mostarda, mamona e colza) e são processados em quantidades relativamente pequenas. Ouro-do-prazer (Camelina sativa (L.) Crantz) na zona não-Chernozem da Rússia não é uma cultura tradicional. A expansão de áreas para esta semeadura de culturas é limitada pela falta de recomendações desenvolvidas sobre a tecnologia de cultivo. Esta é a base da pesquisa. O objetivo deste experimento foi identificar as características da formação da produtividade de ouro de prazer e otimizar os principais elementos da tecnologia varietal (taxa de semeadura e tempo de semeadura) nas condições da região. A pesquisa foi realizada na Universidade Agrotecnológica do Estado de Ryazan, nos campos experimentais da estação experimental agrotecnológica de Ryazan oblast, em solos de floresta cinza. O objeto da pesquisa é o ouro-do-prazer, variedade Yubilyar. Foi revelado que, para se obter um rendimento estável de ouro-de-prazer, é necessário ter pelo menos 420-440 plantas por 1 m² para a colheita, e 400-450 plantas por 1 m² são consideradas a densidade ideal. Aumentando a taxa de semeadura, acima de 8 milhões de unidades. das sementes / ha, levou à formação de uma cultura fortemente lotada, o que acabou por contribuir para a diminuição do rendimento e qualidade das sementes. A taxa de semeadura mais ideal para o ouro-do-prazer é de 7,0 milhões de sementes germinadas por hectare. A superestimação da norma para 8,0 milhões de peças / ha não aumentou significativamente o rendimento, mas levou a um consumo excessivo de sementes, deterioração da qualidade das sementes, risco de alojamento e doenças. O melhor tempo de semeadura em experimentos é a primeira década de maio

Recent outburst of the young star V1180 Cas

We report on the ongoing outburst of the young variable V1180 Cas, which is known to display characteristics in common with EXor eruptive variables. We present results that support the scenario of an accretion-driven nature of the brightness variations of the object and provide the first evidence of jet structures around the source. We monitored the recent flux variations of the target in the Rc, J, H, and K bands. New optical and near-IR spectra taken during the current high state of V1180 Cas are presented, in conjunction with H2 narrow-band imaging of the source. Observed near-IR colour variations are analogous to those observed in EXors and consistent with excess emission originating from an accretion event. The spectra show numerous emission lines, which indicates accretion, ejection of matter, and an active disc. Using optical and near-IR emission features we derive a mass accretion rate of ~3 E-8 Msun/yr, which is an order of magnitude lower than previous estimates. In addition, a mass loss rate of ~4 E-9 and ~4 E-10 Msun/yr are estimated from atomic forbidden lines and H2, respectively. Our H2 imaging reveals two bright knots of emission around the source and the nearby optically invisible star V1180 Cas B, clearly indicative of mass-loss phenomena. Higher resolution observations of the detected jet will help to clarify whether V1180 Cas is the driving source and to determine the relation between the observed knots.Comment: Accepted as Letter in A&A; 4 pages, 3 figure

Phytotherapy of acute and chronic rhinosinusitis from the position of evidence-based medicine

The article highlights the problem of using phytotherapy in the treatment of the most topical inflammatory diseases of the ENT organs, namely acute and chronic rhinosinusitis. Phytotherapy of ENT diseases has always attracted both doctors and patients. However, from the standpoint of evidence-based medicine there were a lot of questions about most herbal remedies due to the small number of reliable, well-controlled studies. This article presents the data of evidence-based studies on phytotherapy of acute and chronic rhinosinusitis. They allow us to speak about secretolytic, secretomotor, anti-inflammatory, anti-edema, moderate antibacterial and antiviral effects of phytopreparations. A common pharmacological property of plants included in phytopreparations is the ability to block the phase of exudation and reduce the permeability of the vascular wall. Phytotherapy is a good alternative method of treatment of patients with chronic rhinosinusitis (CRS). Data on the complex therapy of rhinosinusitis are given. Nevertheless, the safety and efficacy of phytotherapy for the treatment of patients with CRS are currently uncertain. The clinical guidelines of the Russian Ministry of Health 2021 on the treatment of acute rhinosinusitis (ARS) note the following: any patient with ARS can be prescribed herbal remedies with proven anti-inflammatory and mucolytic effects in the absence of contraindications to accelerate resolution of the disease symptoms. The results of works devoted to the use of preparations of plant origin for the treatment of patients with acute and chronic sinusitis allow to estimate them as rather effective in the complex treatment of this group of patients. However, further controlled studies are required to obtain additional data on the effectiveness of phytotherapy