bluuebunny/crossref_metadata_2025 huggingface dataset:
Genetic evaluation of F2 inbred strain of Swiss albino mice by microsatellite markers
Authors: KAUSHAL SHOBHANA , KUMAR PUSHPENDRA , KUMAR AMIT , SAINI B L , TARANG MITEK , CHAUHAN ANUJ , PRAKASH JAI , BHUSHAN BHARAT
Published: November 2022

Genetic characterization of F2 inbred Swiss albino mice was done using 11 microsatellites markers (D1Mit15, D2Mit51, D2Mit61, D3Mit15, D3Mit55, D5Mit18, D7Mit323, D8Mit14, D9Mit27, D10Mit180, and D11Mit167). The results indicated that genotypic frequencies at all the loci were in Hardy-Weinberg disequilibrium (P<0.001). Total number of alleles per locus ranged from 3 (D2Mit61, D3Mit15, D8Mit14, D9Mit27, D10Mit180, D11Mit167) to 4 (D1Mit15, D2Mit51, D3Mit55, D5Mit18, D7Mit323), with a mean of 3.45. The numbers of effective alleles ranged between 1.847 and 3.814. The observed heterozygosity (Ho) was maximum for D1Mit15 (0.660) and minimum for D5Mit18 (0.080), with mean of 0.269. The FIS estimates was ranged from 0.0817 (D1Mit15) to 0.8799 (D5Mit18). The average inbreeding coefficient was 0.592, which indicates that parents were more related than expected under random mating. The range of PIC value (from 0.414 to 0.689) for various microsatellite loci was revealing that population under investigation was of high diversity maintaining a multiple allele.
Effect of temperature and cropping sequence on the infestation pattern of Bemisia tabaci in potato
Authors: SHAH MOHD ABAS , MALIK KAMLESH , BHATNAGAR ANUJ , KATARE SUBHASH , SHARMA SANJEEV , CHAKRABARTI SWARUP KUMAR
Published: November 2022

In India, more than 85% of the total potato production is realised from the subtropical Indo-Gangetic plains where potato is cultivated during winter. The cotton whitefly, B. tabaci is a major pest of potato as it transmits the Tomato leaf curl New Delhi virus (potato) causing the Apical leaf curl disease which leads to huge yield losses. The population dynamics of cotton whitefly was studied at 12 locations across the northern plains of India from 2015â€“17. It was observed that the cotton whitefly appears on potato immediately after crop emergence. The whitefly adults exhibited four different patterns of population dynamics at different locations. Whiteflies remained on the potato crop as long as minimum daily temperature was above 10â€“12ÂºC after which the whiteflies either disappeared from the crops or their flight activity was considerably reduced as indicted by the yellow sticky trap catch data. The whitefly incidence was higher at locations where potato is preceded by crops preferred by whitefly such as cotton, broad beans, groundnut etc. Perusal of the data on number of eggs laid and ensuing nymphs per plant indicated that the contribution of immigrating adults to the whitefly population is much higher than that of the colonising population for major part of the crop period. Thus, in addition to temperature, cropping sequence acts as a major factor in shaping the pattern of whitefly infestation. The results will help in deciding cropping pattern and better timing of insecticidal applications for healthy seed potato production.
Production potential, economics and energetics of rice (Oryza sativa) genotypes as influenced by varying levels of nitrogen
Authors: KUMAR RAKESH , MISHRA J S , KUMAR SANTOSH , HANS HANSRAJ , BHATT B P , SRIVASTAVA A K , SINGH SUDHANSHU
Published: November 2022

Performance of eight rice (Oryza sativa L.) genotypes (IR 83383â€“Bâ€“Bâ€“129â€“4, IR 83387â€“Bâ€“Bâ€“27â€“4, IR88867â€“ 9â€“1â€“1â€“4, IR88964â€“24â€“2â€“1â€“4, IR88964â€“11â€“2â€“2â€“4, IR88966â€“39â€“1â€“4â€“4, Rajendra Sweta and Rajendra Bhagwati) were evaluated in different levels of nitrogen (N) application, i.e. control, 50% RDN (60 kg N/ha), 100% RDN (120 kg N/ha) and 150% RDN (180 kg N/ha) during the rainy season of 2016â€“17 in lowland transplanted condition of Patna, Bihar. Significantly higher grain yields (5.19 t/ha) and net returns (` 52260/ha) were recorded with application of 180 kg N/ha. Grain yields and net returns were noted higher with IR 83383â€“Bâ€“Bâ€“129â€“4 (4.27 t/ha and ` 38181/ ha). Carbohydrate equivalent yield (4.06 t/ha) and carbon output (6.42 t CE/ha) were also higher with 150% RDN. IR83383â€“Bâ€“Bâ€“129â€“4 had significantly higher carbohydrate equivalent yield (3.34 t/ha) and carbon output (5.23 t CE/ ha). Gross energy output, net energy return, energy use efficiency, energy profitability, energy productivity, energy intensity in economic terms and energy output efficiency were markedly higher with 180 kg N/ha. These attributes were higher with IR83383â€“Bâ€“Bâ€“129â€“4 but being on a par with IR83387â€“Bâ€“Bâ€“27â€“4. Therefore, growing of IR 83383â€“Bâ€“Bâ€“129â€“4 along with application of 180 kg N/ha is an ideal approach to achieve the higher productivity, profitability and energetics in lowland transplanted condition of Bihar.
Comparison between mephentermine and ondansetron for the prevention of post spinal hypotension: a prospective randomized trial
Authors: Shah K , Dubey P.K. , Bharti A , Singh S
Published: November 2022

Background and Aims: Spinal anesthesia is a technique often associated with side effects like hypotension and bradycardia. Recent studies have shown that the use of ondansetron leads to a decreased incidence of hypotension induced by spinal anesthesia. This prospective, randomized, controlled, double-blind study was done to compare the efficacy of the prophylactic use of intravenous (IV) ondansetron and mephentermine on post-spinal hypotension.

Methods: A total of 130 patients were randomly allocated to one of two groups: Group O received 4 mg IV ondansetron and Group M received 6 mg of IV mephentermine. All patients received spinal anesthesia using 3 mL of 0.5% hyperbaric bupivacaine. Assessment of blood pressure and heart rate (HR) was done for 30 minutes after spinal anesthesia was performed. Quantitative data were analyzed using ANOVA tests and qualitative data were analyzed using the Chi-square tests.

Results: Both groups were comparable regarding demographic data. Mean arterial blood pressure (MAP) in Group O was lower than Group M at 5 to 25 minutes and difference of MAP between the two groups was > 20% of baseline values (p < 0.05). HR was comparable between groups. No statistically significant differences were seen in side effects between the two groups.

Conclusion: Our study shows that the preemptive use of both ondansetron and mephentermine significantly decreases the incidence of post-spinal hypotension.
Coffee Plants' Endomycorrhizae Potential to increase the growth and nutrient uptake of Arabica Coffee (Coffea arabica L.) under Field Condition
Authors: Sariasih Santi , Aditiawati Pingkan
Published: November 2022

Inorganic fertilizers utilization is the most common way to increase plant productivity. However, the intensive use of organic fertilizer can harm the environment. Therefore, alternative fertilization by utilizing soil microorganisms to provide plant nutrients is needed. Endomycorrhizae is known as a microorganism that can increase the availability of nutrients and plant growth. This study aimed to determine the potential of endomycorrhizae to increase the growth of arabica coffee seedlings under field conditions. A Randomized Complete Block Design (RCBD) with 5 replications was used with four treatments, i.e., (P0) control: without endomycorrhizae and fertilizer, (P1) inorganic fertilizer: NPK recommended dose for seedlings nine months after sowing (N 184 kg/ha, P2O5 72 kg/ha, and K2O 120 kg/ha from 400kg/ha urea, 200 kg/ha SP-36, and 200 kg/ha KCl, respectively), (P2) endomycorrhizae: 1:1 (w/w basis) endomycorrhizal inoculum-planting medium, and (P3) endomycorrhizae + organic fertilizer: 1:1 (w/w basis) endomycorrhizal inoculum-planting medium with the addition of chicken manure at a dose of 10 tons/ha. The results showed that endomycorrhizae could increase the growth of arabica coffee seedlings by increasing plant height, plant dry weight, and plant N, P, and K uptake by 15.4%, 23.3%, 52.5%, 90.8%, and 75.6%, respectively compared to the control with 67,5% of root colonization at 16 weeks after transplanting (WAT). In conclusion, endomycorrhizae can potentially increase the growth of arabica coffee seedlings under field conditions.
Guidelines for Implementing Social and Emotional Learning in Schools
Authors:   UNESOC MGIEP
Published: November 2022

The purpose of these guidelines is to share the latest research with policymakers, school leaders, and teachers looking to integrate social and emotional learning (SEL) into school practices and present scientific evidence on creating school environments and recommending practices that are key to building peaceful and sustainable societies.
But Why Doesn’t It Get Better? Kinetic Plots for Liquid Chromatography, Part III: Pulling It All Together
Authors: Broeckhoven Ken , Gunnarson Caden
Published: November 2022

Choosing a liquid chromatography (LC) column for a particular application can be a surprisingly challenging task. On one hand, column manufacturers give us many options to choose from, including particle types, pore sizes, particle sizes, and different lengths and diameters. On the other hand, we usually don’t have time to experimentally evaluate many combinations of these parameters, and sometimes we end up picking something similar to the columns that are already in the drawer. The “kinetic plot” is a powerful graphical tool that can help leverage the best available theory to help us understand how different combinations of parameters (that is, particle size and length) will perform in terms of the time needed to get to a particular column efficiency (and thus resolution), and therefore make well-informed decisions when choosing columns.
Using an Innovative Mass Spectrometer and Non-Matrix–Matched Reference Materials to Quantify Composition of Metal Disks and Powders
Authors: Williams Ellen , Willis Peyton , Koenig Alan , Putman Jonathan C.
Published: November 2022

This work demonstrates a new analytical technique and its quantification capabilities on a set of disparate metal samples. The laser ablation laser ionization time-of-flight mass spectrometer (LALI-TOF-MS) combines a dual-laser ionization system with a TOF mass analyzer for rapid, high-sensitivity elemental characterization of any solid material. To demonstrate the instrument’s quantification capabilities, nine different reference materials were analyzed. One solid and one powder reference material were then treated as “unknowns,” and quantified using calibration curves generated from the remaining reference materials. Despite being generated from reference materials of various matrices, elemental calibration curves are linear with an average R2 value of 0.96, even for elements that span several orders of magnitude in concentration range. For all elements quantified, results match the certified values of the “unknown” within the margins of error.
The 2022 Employment and Salary Survey: Looking for a Return to Normalcy
Authors: Workman Jerome
Published: November 2022

This past year was a time where many were hoping and dreaming for a new tomorrow—one that would look a lot like the past. A world where masks, social distancing, jabs, and virtual connections to laboratories and conferences could be left to the historical record. Unfortunately, we are still embroiled in these social and economic conundrums. This 2022 Spectroscopy salary and employment survey takes a look at spectroscopists from around the globe and their impressions, reactions, responses to how their work life unfolded in 2021 and their future outlooks.
Real-Time, Multicolor Fluorescence Imaging of Tumors in Tissues
Authors: Freeman Jay
Published: November 2022

Novel synthetic fluorescent dyes in combination with shortwave infrared irradiation allow the high-resolution imaging of tissues within living organisms and can overcome several limitations of existing techniques in terms of penetration depth. Furthermore, they enable the simultaneous visualization of multiple tissue types and processes, making it possible to distinguish tumors from surrounding tissues.
Russian Statesmen of the Late 19th - Early 20th Century on Socio-Economic Problems of the Development of Siberia
Authors: Rogachevskaya M. A.
Published: November 2022

The article is devoted to the strategic role of Siberia in the socio-economic development of the Russian state in general and interregional relations in particular. The author consistently examines the formation and evolution of the evaluative perception of the economic and social significance of Siberia by key statesmen of the Russian Empire, namely N.H. Bunge, S.Y. Witte, P.A. Stolypin. The article analyzes the level of industrial development of Russia in the XlX-early XX century through the method of comparison with the most industrially developed countries of Europe and the world. Siberia, according to the objective opinion of the reformers of the turn of the century, was the «currency storehouse» of Russia, whose bowels needed competent development. However, this task is feasible only if the number of qualified population in Siberia grows and the operational management of industrial processes from the center. The author focuses on the analysis of management decisions on reforming community relations, attracting labor resources to Siberia and planning projects for the development of Siberia, which were developed by these statesmen (N.H. Bunge, S.Y. Witte and P.A. Stolypin). These projects organically combine continuity and innovative features: N.H. Bunge is characterized by attention to the issues of resettlement of peasants and the development of the institute of private land ownership in Siberia, S.Y. Witte is characterized by an emphasis on the creation of an extensive transport infrastructure, P.A. Stolypin is distinguished by attention to the social sphere (medicine and education in Siberia). The article concludes with statement of the high importance of the reform activity of N.H. Bunge, S.Y. Witte, P.A. Stolypin and their role in establishing communications between the European, Siberian and Far Eastern regions of Russia, in raising the level of economic and cultural development of Siberia and strengthening the reputation of the Russian Empire as an industrial power.
Prediction of extinguish boundary of radio frequency thermal plasma torch within carrier gas injector
Authors: Mingqing N. , Xiangyang L. , Long M. , Ruoyu H. , Xiaoyu W. , ZhengXi Z. , Grishin Y.M. , Ningfei W.
Published: November 2022

In present paper, a two-dimensional transient laminar model has been developed to predict the extinguishing boundary of radio frequency thermal plasma torch. The influence of the discharge frequency, gas flow rates of central, intermediate and sheath gases (Q 1 , Q 2 , Q 3 ) on the extinguishing boundary has been determined. It is found that the value of the minimum sustaining power of rf thermal plasma monotonically rises up with increasing the flow rates of carrier Q 1 and intermediate Q 2 gases. And when the flow rate of sheath gas Q 3 and the discharge frequency f increase, the value of the minimum sustaining power monotonically decreases. The results in present work could provide useful information for organizing the working gas supply system to obtain a stable discharge in induction thermal plasma torches.
Influence of magnetic field induction on the energy of ions and injection processes of ionized flows of working substances in a plasma mass separator
Authors: Antonov N.N. , Vetrova S.B. , Usmanov R.A. , Liziakin G.D. , Melnikov A.D.
Published: November 2022

The concept of plasma mass separation of substances in a configuration with a potential well implies the development of specialized plasma sources. The conversion of condensed matter into a low- temperature plasma flow and its further injection into the separation chamber is a crucial stage that largely determines the efficiency of the technological process. It is especially important if the aim of the concept is the separation of spent nuclear fuel (SNF). The energy distribution of charged particles at the starting point determines the trajectories of the separated elements in crossed E×B fields. In real experiments on the separation of substances, it is possible to use a plasma source in a fairly wide range of magnetic induction values up to 1400 G. In this paper, we present the results of studying the energy distributions of ions behind the anode plasma of a non-self-sustained arc discharge with a hot LaB 6 cathode and independent lead vapor injection.
Экспериментальное исследование свойств микроволнового разряда в диэлектрической барьерной конфигурации
Authors: Тихонов В.Н. , Антипов С.Н. , Гаджиев М.Х. , Горбатов С.А. , Иванов И.А. , Тихонов А.В.
Published: November 2022

Широкие перспективы использования нетермальной плазмы атмосферного давления (НТАП) связаны с ее огромным потенциалом уникальных технологических возможностей при создании новых продуктов и технологий. В данной статье представлены результаты экспериментального исследования параметров микроволнового источника НТАП, сочетающего в себе преимущества диэлектрического барьерного разряда и нетермальной плазменной струи.
Экспериментальное исследование испарения перспективных рабочих тел микро-АИПД
Authors: Чебыкин Е.О. , Павлов А.В. , Федорова Д.К. , Подлосинская А.П. , Щепанюк Т.С. , Телех В.Д.
Published: November 2022

В работе представлены результаты экспериментального исследования и определения параметров световой эрозии фторопласта (C2F4)n. Испарение вызвано облучением образца фторопласта мощным излучением УФ-ВУФ разряда магнитоплазменного компрессора. Спектр излучения разряда включал в себя ВУФ-область. Определение параметров производилось при помощи двухлучевой лазерной голографической интерферометрии
Optical absorption of radiation defects in alkali halide crystals implanted magnesium and silver ions
Authors: Paperny V. , Ivanov N. , Nebogin S. , Bryukvina L.
Published: November 2022

The results of a research of the properties, structure, and formation mechanisms of metallic magnesium and silver nanoparticles obtained by ion implantation in LiF, NaCl, KCl, and KBr crystals. The crystal samples were irradiated with accelerated Mg+ ions, with the mean energy of ~80 keV, the mean ion current density of ~4 μA/cm2 produced with a small-sized ion implanter. Dose ranges from 2.2×1016to 7.5×1016 ion/cm2. Comparison of the optical properties of crystals implanted with magnesium and silver ions shows a significant superiority of the optical characteristics in the case of implantation with magnesium ions.
Formation of a boron-based protective coating on the surface of D2 die steel by electron beam processing
Authors: Milonov A.S. , Dasheev D.E. , Semenov A.P. , Mishigdorzhiyn U.L.
Published: November 2022

The features of the formation, composition, structure and microhardness of boride layers on the surface of D2 die tool steel formed during electron beam processing in vacuum are considered. Formed layers have a heterogeneous structure, which combines solid and plastic components resulting in the fragility reduction of boride layer.
Mass-resolved spectrometry of ion flux from hot-target reactive HiPIMS discharge with Si target
Authors: Kolodko D.V. , Kaziev A.V. , Tumarkin A.V.
Published: November 2022

The work is devoted to the study of the composition of ion fluxes originating from hot-target reactive HiPIMS plasma. Experiments were carried out for thermally insulated Si target. The HiPIMS discharge was operated in O2/Ar mixture. The component composition of ion fluxes from plasma was measured by a custom-built magnetic mass-analyzer as a function of the reactive gas flow. In the experiments, sharp changes in the ratio of fluxes of different ions were observed once the injected reactive gas flow exceeded certain levels. Nevertheless, in the HiPIMS mode, the dominant fraction of ions were those of the target material. Distinct SiO+ signal in the ion flux was found that implies intense evaporation of oxide molecules.
Магнетронное распыление меди короткими импульсами высокой мощности
Authors: Оскирко В.О. , Захаров А.Н. , Работкин С.В. , Павлов А.П. , Семенов В.А. , Соловьев А.А.
Published: November 2022

Представлены результаты магнетронного распыления меди короткими (до 1–2 мкс) импульсами высокой мощности. Для получения коротких импульсов использовался специальный источник питания, обладающий высоким выходным напряжением (до 1500 В) и низким внутренним сопротивлением. Результаты экспериментов показали, что уменьшение длительности импульсов разрядного тока ведет к увеличению средней плотности ионного тока, протекающего на подложку. Максимальная плотность ионного тока наблюдается при длительности импульсов разрядного тока 2–6 мкс. Показано, что благодаря увеличению плотности ионного тока существенно возрастает отношение количества ионов к количеству атомов в потоке частиц, воздействующих на подложку.
гностика плазмы методом оптической эмиссионной спектроскопии при осаждении покрытий Mo-Hf-Si-B с помощью технологии HIPIMS
Authors: Кирюханцев-Корнеев Ф.В. , Сытченко А.Д.
Published: November 2022

В данной работе проведена диагностика плазмы при осаждении покрытий Mo-Hf-Si-B методом HIPIMS, исследованы структурные характеристики, элементный и фазовый состав, а также скорости роста полученных покрытий; выявлены закономерности влияния расхода рабочего газа на состав плазмы. Установлено, что увеличение расхода аргона приводит к росту эффективности ионизации металлических элементов в режиме HIPIMS. При использовании метода DCMS наблюдается преимущественно аргоновая плазма, в то время как при HIPIMS плазма характеризуется большим количеством ионов Mon+, Sin+и Вn+. Результаты показали, что покрытие Mo-Hf-Si-B, осажденное при постоянном токе, содержит столбчатые кристаллиты h-MoSi2 размером прядка 70 нм, текстурированные в направлении [100]. Переход к режиму HIPIMS привел к подавлению столбчатого роста зерен и измельчению структуры.
Investigation of the photocatalytic activity and radiopacity of nanopowders produced by pulsed electron beam evaporation in vacuum
Authors: Gerasimov A.S. , Chepusov A.S. , Ilves V.G. , Svetlova O.A. , Sokovnin S.Yu.
Published: November 2022

In this work, were investigated the photocatalytic properties and radiopacity of titanium TiO2and zinc oxide Zn-ZnO nanopowders produced by the pulsed electron beam evaporation method in vacuum. Photocatalytic activity was measured based on the rate of decomposition of methyl violet by nanoparticles of various concentrations under the action of UV radiation. Radiopacity was evaluated by comparing the X-ray attenuation coefficients with Na-CMC buffer solution containing NPs test compounds and commercial iodine computer tomography contrast agent Ultravist®. In both cases, the NPs of zinc compounds showed more pronounced properties by accelerating the photodegradation reaction by 1.6 times, relative to the control sample and showing a attenuation factor of 70% of Ultravist®.
Dynamic fracture of hexagonal close packed alloys
Authors: Skripnyak V.V. , Skripnyak E.G. , Skripnyak V.A.
Published: November 2022

The paper presents the results of 3D numerical simulation of the processes of deformation and ductile fracture of hexagonal close packed titanium and zirconium alloys under dynamic impacts. Based on the generalization of the obtained experimental data, a version of the model is proposed that allows to adequately describe the regularities of plastic deformation during tension, the formation of zones of localization of plastic shears and the development of damage and fracture in a wide range of strain rates and spall fracture in plates under plane shock waves impacts. Proposed constitutive equation described the mechanical response of HCP titanium and zirconium alloys in a wide range of strain rates at the temperatures below temperature of phase transformation. It was shown that using of the kinetic model of the damaged medium is justified at high strain rates in complex stress conditions in the spall zone and around it.
Composite material of the Ti-Ta-Zr system intended to work in boiling sulfuric and hydrochloric acids
Authors: Samoylenko V.V. , Golkovski M.G. , Ivanchik I.S. , Chakin I.K. , Polyakov I.A.
Published: November 2022

The paper presents the results of a study of relatively thick corrosion-resistant coatings of the Ti-Ta-Zr system. The coatings are obtained by surfacing powder mixtures on a titanium base using a focused electron beam emitted into the air atmosphere. It was shown in previous works that the coatings of the Ti-Ta-Nb system obtained in this way are resistant to boiling concentrated nitric acid, but not sufficiently resistant to two other boiling strong acids: sulfuric and hydrochloric. The purpose of this work is to overcome this shortcoming by forming a fused deposited layer of the Ti-Ta-Zr system with a high degree of alloying, resulting in a coating that is resistant to all three of the mentioned strong acids at their boiling temperatures.
Температурная зависимость края фундаментального поглощения: экситоны или тепловое расширение?
Authors: Рипенко В. , Дзядух С. , Попова А. , Григорьев Д. , Липатов Е.
Published: November 2022

В работе представлены результаты расчетов спектров поглощения малопримесных алмазов, полученных методом температурного градиента. Определены значения ширины запрещенной зоны численным методом Ньютона для каждого из образцов. Представлены модели спектров поглощения алмаза, полученные в температурном диапазоне от 12 до 460 К. Рассмотрен вопрос о влиянии теплового расширения кристаллической решетки на краевое поглощение.
Superluminescence of NV centers in diamond pumped by the second harmonic of a Nd:YAG laser
Authors: Genin D.E. , Mironov V.P. , Tel'minov E.N. , Shulepov M.A.
Published: November 2022

In the light of the creation of a diamond laser [1], an urgent task is to determine the characteristics of diamonds in order to determine the range in which such lasers can be created not in isolated cases. This work is aimed at studying the mechanisms of creating superluminescence in diamond under the action of optical pumping by the second harmonic of an ND:YAG laser (λ = 532 nm). It was found that, upon pulsed excitation of a diamond by an ND:YAG laser with a pump intensity above ~2.0 MW/cm2 in the spectral range 700–750 nm, a nonlinear increase in intensity appears against the background of the spontaneous photoluminescence spectrum, which, with a further increase in the pump intensity, turns into a pronounced superluminescence peak with a maximum at about 718 nm. An increase in the pump intensity from 2.7 to 46 MW/cm2leads to the broadening of this peak at half maximum from 13 to 19 nm. At high levels of pump intensity, nonlinear absorption of pump radiation and accumulation of NV centers in the excited state were found. The position of the photoluminescence band was calculated as a function of various values of the inversion density of the populations of color centers, taking into account the intrinsic absorption spectrum of diamond. The calculation results are close to the experimental data.
Luminescence of compacts from mixtures of nano and micro calcium fluoride powders
Authors: Ilves V. , Sokovnin S. , Zayats S. , Zuev M.
Published: November 2022

There were carried out the studies of pulsed cathodoluminescent (PCL) and photoluminescent (PL) properties of compacts made by static (SP) and magnetic-pulse (MP) pressing from mechanical mixtures of micro and nano calcium fluoride powders. The mixtures contained commercial powder (TU 6-09-2412-84) and nanopowder (NP) CaF2 (NP produced by pulsed electronic evaporation at the installation NANOBEAM-2 in vacuum) at powder weight ratios: 10:0.125 – 10:1. Was shown the effect of the concentration of the CaF2 nanoadditive, the pressing temperature (Tp) and the preliminary annealing of the nanoadditive on the density of compacts. Presence of nanoparticles (NPles) of Ca at NP, strong defective structure and high porosity of NP had strong impact on luminescent characteristics of the compacts made both of clean NP CaF2 and from their mixes. Annealing of the initial NP at a temperature of 400 °C made it possible to achieve the same density of compacts of pure micropowders and nanopowders (89% of the theoretical density) using the MPP method with heating. The maximum density of compacts from mixtures of powders of different dispersity did not exceed 78% of the theoretical density. The main factor that influenced the morphology of PCL spectra of all compacts, without exception, was the compaction temperature (425 °C) in the MPP method. The blue peak (434 nm) is associated with an impurity oxygen vacuum in the nanocrystalline CaF2lattice and was found in the photoluminescence spectra of compacts from NP annealed at 400 °C. The morphology of the PL spectra is more sensitive to the influence of various factors (concentration of the nanoadditive, pressing method, pressing pressure, etc.) in comparison with the morphology of the PCL spectra. Is given the study of the density and transparency of ceramics from the above compacts after annealing the compacts in vacuum at a temperature of 1000 °C.
Microstructural stability and mechanical properties of the system V-Nb-Ta-Ti under helium ion irradiation
Authors: Ryskulov A.E. , Belov M.M. , Uglov V.V. , Zlotski S.V. , Jin K. , Ivanov I.A. , Kozlovskiy A.L. , Zdorovets M.V. , Kurakhmedov A.E. , Sapar A.D. , Mustafin D.A. , Bikhert Y.V. , Kuznetsova T.A. , Lapitskaya V.A. , Khabarava A.V.
Published: November 2022

The purpose of this work is to study the effect of irradiation with low-energy helium ions with an energy of 40 keV on the structural-phase state of multicomponent solid solutions based on V-Nb-Ta-Ti. This type of irradiation at fluence of 2×1017 He/cm2 make it possible to simulate the effects occurring in a nuclear reactor. since during its operation, a large number of neutrons are released, causing nuclear reactions in the material with the formation of inert gases. As a result of the work carried out, it was found that all alloys of the system belong to equiatomic single-phase solid solutions and show a greater value of deformation of the crystal lattice and stress after irradiation compared with pure vanadium. It has been proposed that increasing the number of elements in the V-Nb-Ta-Ti system reduces the mobility of defects created by irradiation, which leads to the formation of smaller clusters and an increase in microdeformation.
Численное моделирование и проектирование резонаторной камеры СВЧ-реактора CVD
Authors: Балзовский Е.В. , Смирнов С.С.
Published: November 2022

Приведены результаты численного моделирования распределения поля в цилиндрическом резонаторе камеры CVD-ректора в среде CST Studio Suite. На частоте 2.45 ГГц помимо основной моды ТМ011 в резонаторе присутствуют вторичные радиальные максимумы, связанные с одновременным возбуждением ТМ021 и высших мод. Выявлено, что на модовый состав существенно влияет кварцевое кольцо, разделяющее вакуумную часть от части, находящейся под атмосферным давлением. Найдена оптимальная геометрия дисковой камеры резонатора, в которой максимальная напряженность электрического поля достигается вблизи подложки с образцами. Для повышения стабильности зажигания СВЧ-разряда в камере резонатора используется подвижный поршень. По результатам моделирования изготовлен образец резонаторной камеры, экспериментально обнаружены стационарные режимы зажигания и устойчивого горения плазмы.
Development and studies of a high-current relativistic gyrotron with a TM-type operating mode
Authors: Abubakirov E. , Danilov Yu. , Denisenko A. , Leontyev A. , Rozental R.
Published: November 2022

We present the main development stages of a sub-GW Ka-band gyrotron with TM51 operating mode. For discrimination of TE-type modes, an axial-slit resonator is proposed. The analytic theory of its cavity is developed and calculations using finite-element method and “cold” electrodynamic measurements is developed. The results of the first experiments on radiation generation are presented.
High-current THz-band gyrotrons based on axial-slit cavities
Authors: Danilov Yu. , Leontyev A. , Malkin A. , Rozental R. , Shchegolkov D.
Published: November 2022

We propose a variant of a slotted cavity for high-current gyrotrons based on the coupling of modes with proportional azimuthal indexes and close eigenvalues. A finite-element method simulation is presented, which confirm its high selectivity. 3D PIC simulations of a high-current relativistic gyrotron in the 0.3 THz and 0.5 THz bands with an output power of about 70–80 MW are performed.
Methodology for conducting in-pile experiments to study spectral-temporal characteristic of gas media upon excitation by the 6Li(n,α)3H nuclear reaction
Authors: Samarkhanov K.K. , Batyrbekov E.G. , Khasenov M.U. , Gordienko Yu.N. , Kotlyar A.N. , Miller A.A. , Tskhe V.K. , Martynenko Ye.A. , Kozhabayev Z.B.
Published: November 2022

Almost all experimental studies of the characteristics of nuclear-excited plasma formed by the products of nuclear reactions were performed on impulse nuclear reactors, which differ in the composition and design of the core, the duration, flux and fluence of the neutron impulse, the volume and configuration of the area for irradiation, and the impulse repetition frequency. This work presents a description of the experimental (methodical and equipment) base of the National Nuclear Center of the Republic of Kazakhstan (Kurchatov) for conducting in-pile experiments at the impulse nuclear reactor IGR. The purpose of these works is to study the spectral-luminescent and spectral-temporal characteristics of optical radiation upon excitation of gas mixtures by 6Li(n,α)3H nuclear reaction products. To conduct in-pile experiments at the IGR reactor, a new experimental facility was developed. The experimental facility functionally consists of: a gas-vacuum system, an in-pile irradiation device with lithium layer, recording and temperature control systems of the device case, and an optical radiation recording system. A technique for carrying out in-pile experiments at the impulse nuclear reactor is described. To justify the design of the irradiation device and the safety analysis of conducting reactor experiments, neutron-physical and thermophysical calculations were carried out.
Parameters of a paraxial magnetized bunch of runaway electrons
Authors: Sharypov K. , Osipenko E. , Shpak V. , Shunailov S. , Yalandin M. , Zubarev N.
Published: November 2022

The methods for diagnosing of a dense paraxial magnetized bunch of run-away electrons (RAEs) in a coaxial air-filled diode with a sharp conical cathode and elongated distance to the anode constriction are described. Spatiotemporal characteristics of the bunch are specified. Investigations tools include luminescence screen and collector-type probe of electron current. The lasts equipped with collimators to measure radial distribution of the current density. Fast response probes confirm that paraxial RAE bunch has the width of about 10 ps, and behind the collimator with diameter of 0.7 mm the current density achieves ≈1 kA/cm2.
Nanosecond pulse discharge in helium
Authors: Bokhan P.A. , Glubokov N. , Gugin P.P. , Lavrukhin M.A. , Zakrevsky D.E.
Published: November 2022

The investigation of breakdown characteristics of planar "open" discharge in helium by pulses excitation with nanosecond rise fronts are presented.
Теоретическое изучение влияния переменных электрических полей на формирование профилей линий в спектрах излучения аргона
Authors: Корюкина Е.В.
Published: November 2022

Проведено компьютерное моделирование профилей спектральных линий атома неона в переменном циркулярно поляризованном электрическом поле. Расчеты произведены в рамках теоретического подхода, основанного на численном решении нестационарного уравнения Шредингера. Алгоритм подхода реализован в пакете программ StarkD, написанном на FORTRAN и Maple. Результаты моделирования позволили исследовать механизмы формирования профилей спектральных линий аргона в переменных электрических полях с частотой и напряженностью, меняющихся в широком диапазоне. Зависимости поведения профилей линий от плотности электронов в плазме и от температуры атомов также были рассмотрены.
ANALISA USABILITY BISNIS MAHASISWA UNIVERSITAS SUMATERA SELATAN MENGGUNAKAN METODE HEURISTIC EVALUATION
Authors: Triesia Diah , Oktarina Serly , Dwipa Ruswa
Published: November 2022

Di era digital ini ketika orang masih menguluh atas kesulitan memulai bisnis bukan karna mereka tidak mendapatkan tempat berbisnis melaikan mereka tidak mengikuti perkembangan teknologi yang ada. Bisnis Online pada era digital saat ini sangat digemari baik itu bagi penjual maupun pembeli, Terutama melalui sosial media yang sangat digemari oleh pengguna internet untuk melakukan proses jual beli. Dengan demikian Ketika kita tidak mengikuti perkembangan Bisnis melalui Internet maka bisnis yang kita lakukan tidak mampu bersaing.. Analisa Usability Bisnis online yang dimiliki oleh mahasiswa/wi universitas sumatera selatan dilakukan melalui kuisioner dengan metode heuristic evalution dengan memiliki variable tools. Adapun nilai tertinggi dari severity rating yang dimiliki dari Aspek Kontrol dan kebebasan pengguna dimana memiliki nilai severity rating 1,12, Aspek Bantuan memiliki nilai severity rating 0,93, Aspek Konsistensi memiliki nilai severity rating 0,89. Dari hasil penelitian ini diharapkan bisa menghasilkan bisnis online yang dilakuakn oleh mahasiswa/wi universitas sumatera selatan agar mampu  bersaing dengan menggunakan tools yang terlah tersedia baik menggunakan social media maupun e- commerce
POLYMORBID PATIENT OF OLD AGE: CLINICAL CASE
Authors: Хорошинина Лидия Павловна
Published: November 2022

В данной статье представлен клинический случай лечения гериатрического пациента с сочетанной хронической патологией дыхательной, сердечно -сосудистой, пищеварительной и мочевыделительной систем. Трудности диагностического и лечебного процесса были обусловлены возрастными клинико -анатомическими и иммунологическими особенностями, поздней госпитализацией, а также фактом самостоятельного лечения пациента до госпитализации. Особое внимание при лечении пожилых и старых больных с уже имеющимися признаками хронической болезни почек, с нарушениями системной гемодинамики и при полипрагмазии должно быть уделено потенциальному нефротоксическому действию лекарственных средств, что было проиллюстрировано в данной статье.

This article presents a clinical case of treatment of a geriatric patient with combined chronic pathology of the respiratory, cardiovascular, digestive, and urinary systems. Difficulties in the diagnostic and treatment process were due to age -related clinical, anatomical, and immunological features, late hospitalization, as well as the fact of self -treatment of the patient before hospitalization. Particular attention in the treatment of elderly and old patients with pre -existing signs of chronic kidney disease, with impaired systemic hemodynamics and with polypharmacy should be given to the potential nephrotoxic effect of drugs, as illustrated in this article.
PEDAGOGICAL USES OF INNOVATIVE METHODS AND DIGITAL TOOLS
Authors: Халилова Лилия Ирековна , Комиссарчик Константин Михайлович , Лешева Наталья Сергеевна , Митенкова Любовь Вячеславовна , Кряклина Анна Александровна
Published: November 2022

Применение современных спортивных технологий свойственно не только для спорта высших профессиональных достижений, но и имеет место на уроках физической культуры. Привить интерес к занятиям физической культурой в медицинском университете намного проще, если внедрять в учебный процесс инновационные методики и цифровые технологии. В данной статье рассмотрено нынешнее состояние и степень развития технологии умных весов: дано описание принципа их действия, раскрыта сущность понятия технологии Bioelectrical impedance analysis (биоимпедансный анализ). Данная медицинская технология использует результаты антропометрических измерений и измерения параметров электрической проводимости различных участков тела человека в качестве исходных данных для получения расчетных значений параметров состава тела и определения скорости метаболических процессов. Преимуществом данного метода является специально подобранные интервалы значений параметров, используемых для расчетов. В ходе работы были изучены различные показатели состава тела и была проанализирована их динамика. Во всех используемых тестах основной методикой было исследование показателей состава массы тела на основе наблюдения студентов двух вузов - СПбГПМУ и СПХФУ, а также измерения данных различными способами.

The use of modern sports technologies is typical not only for sports of the highest professional achievements, but also takes place in physical education lessons. It is much easier to instill interest in physical education at a medical university if innovative methods and digital technologies are introduced into the educational process. This article discusses the current state and degree of development of the technology of smart scales: a description of the principle of their operation is given, the essence of the concept of Bioelectrical impedance analysis technology (bioimpedance analysis) is disclosed. Also, the article presents the historical prerequisites for the emergence of technology, describes laboratory studies in various countries of the world, and analyzes the first publications on the topic of bioimpedance analysis.
CLINICAL AND PSYCHOLOGICAL CHARACTERISTICS OF PATIENTS WITH COMBINATION OF FUNCTIONAL DYSPEPSIA AND IRRITABLE BOWEL SYNDROME: RESULTS OF OUR OWN STUDY
Authors: Успенский Юрий Павлович , Мирзоев Олимбек Саидбекович
Published: November 2022

В современной гастроэнтерологии проблема функциональных заболеваний органов пищеварения является основной причиной заболеваемости и обращаемости к практикующим врачам. Перекрестный синдром чаще встречается среди пациентов, нежели изолированные функциональные поражения органов пищеварения. Целью данного исследования было изучение клинико -психологической характеристики больных с сочетанием функциональной диспепсии и синдрома раздраженного кишечника. В исследование включено 192 пациента. Сформированы 3 группы: «синдром раздраженного кишечника» - 82 человека; «функциональная диспепсия» - 54 человека и «сочетанные функциональные заболевания» - 56 человек по результатам обследования. Таким образом, распространенность симптомов диспепсии у пациентов с синдромом раздраженного кишечника составила 40,5 %. Доля пациентов с тяжелыми и выраженными клиническими симптомами в группе «сочетанные функциональные заболевания» была больше по сравнению с группами больных «синдром раздраженного кишечника» и «функциональная диспепсия». Кроме того, у лиц с сочетанной функциональной патологией отмечаются более низкие значения психологического статуса по сравнению с больными с синдромом раздраженного кишечника и с функциональной диспепсией.

In modern gastroenterology, the problem of functional diseases of the digestive system is the main cause of morbidity and referral to practitioners. Cross syndrome is more common among patients than isolated functional lesions of the digestive system. The purpose of this study was to study the clinical and psychological characteristics of patients with a combination of functional dyspepsia and irritable bowel syndrome. The study included 192 patients. 3 groups of patients were formed: “irritable bowel syndrome” - 82 people; “functional dyspepsia” - 54 people and “combined functional diseases” - 56 people according to the results of the survey. Thus, the prevalence of dyspeptic symptoms in patients with irritable bowel syndrome was 40.5 %. The proportion of patients with severe and severe clinical symptoms in the “combined functional diseases” group was higher compared to the “irritable bowel syndrome” and “functional dyspepsia” groups of patients. In addition, individuals with combined functional pathology have lower psychological status values compared to patients with irritable bowel syndrome and functional dyspepsia.
MYOCARDIAL INFARCTION OF THE SECOND TYPE WITH SEVERE AORTIC STENOSIS
Authors: Сизов Алексей Викторович , Зотов Дмитрий Дмитриевич
Published: November 2022

В статье рассматриваются патофизиологические механизмы развития острого инфаркта миокарда 2-го типа у пациентов с выраженным аортальным стенозом. Приводятся данные о распространенности этой патологии как на основании литературы, так и собственных исследований. Представлено описание клинического наблюдения, демонстрирующего развитие острого повреждения миокарда у пациента с выраженным аортальным стенозом при отсутствии ангиографических признаков поражения коронарных артерий, а также возможности современных эндоваскулярных методов лечения.

The article discusses the pathophysiological mechanisms of the development of acute myocardial infarction of type 2 in patients with severe aortic stenosis. Data on the prevalence of this pathology are given, both on the basis of literature and our own research. A description of the clinical observation demonstrating the development of acute myocardial damage in a patient with severe aortic stenosis, in the absence of angiographic signs of coronary artery disease, as well as the possibility of modern endovascular treatment methods is presented.
Kanser Hastalarında Grup Terapisi Uygulamaları: Terapi Manueli Örneği
Authors: GÜLTEKİN ARAYICI Sema
Published: November 2022

Medikal hastalara yönelik psikolojik müdahaleler, psikolojik hastalıklar için olan müdahalelere göre nispeten yenidir. Medikal hastalıklar özelinde kanser hastalığı, bu hastalıklar arasında özel bir konuma sahiptir. Vücudundaki hücrelerin kontrolden çıktığını ve giderek kötüleştiğini bilmek başka hiçbir hastalığın taşımadığı sembolik bir öneme sahiptir. Dünya çapındaki ölüm oranları incelendiğinde kanser hastalığının bu paydada büyük bir yere sahip olduğu bilinmekte- dir. Hastalık ile ilişkili kayıplar göz önüne alındığında kanser beraberinde birçok yıkım, fiziksel ve psikolojik kaybı birlikte getirmektedir. Kanserli hastalarda depresyon, kaygı, umutsuzluk gibi çeşitli psikolojik belirtiler gözlenmektedir. İlgili literatür incelendiğinde kanser hastalarında yapılan psikolojik müdahalelerin hastaların fiziksel semptomlarını azalttığı bulunmuştur. Hastaların sıklıkla kullandığı uyum stratejilerinin (mücadele ruhu, kaçınma veya inkâr, kadercilik, çare- sizlik ve umutsuzluk, endişeli meşguliyet) hastalığın prognozunda oldukça etkilidir. Yine bu hastalarda bilişsel davra- nışçı terapinin etkili olduğu çok çeşitli çalışmalarla saptanmıştır. Alana yönelik uygulamaların tanıtılması ve bilinmesi amacıyla konuyla ilişkili yayınların sayısının yetersiz olmasından yola çıkılarak alan uzmanları ve okuyuculara kanser hastalarının yaşadığı psikolojik süreçlerin ve bir uygulama örneği tanıtılmasının yaşanılan sürece faydalı olacağı düşü- nülmüştür. Bu çalışmada görece yeni bir müdahale olan ‘Kanserli Hastalarla Grup Terapisi’ kavramının ele alınması ve örnek bir terapi manueli(el kitabı) yoluyla okuyuculara ve alanın uygulayıcılarına tanıtılması amaçlanmıştır.
Reflexiones acerca de la enseñanza universitaria de la psicología y el papel del profesor = Reflections on the teaching ok psychology and the teacher´s role
Authors: Pons Díez Xavier
Published: November 2022

En las últimas décadas se ha acrecentado el interés por la mejora de la calidad de laenseñanza en la universidad. De ahí que sean muchos los autores que han publicado trabajosdedicados específicamente a la enseñanza universitaria de la psicología, tales como Berjano(1995), Echeburúa, De Corral y Salaberría (2005) o Hartley y McKeachie (1990). En ellos latela idea de que mejorar la enseñanza supone incorporar estilos y técnicas facilitadores delaprendizaje y optimizadores del clima en el aula, así como que una enseñanza universitariade calidad gira en torno a cuatro aspectos interrelacionados, que el profesor debe observar:conocimiento en profundidad de la asignatura, comunicación fluida con los alumnos,conocimiento de los estilos de aprendizaje de los alumnos y conocimiento de la didácticauniversitaria.