bluuebunny/crossref_metadata_2025 huggingface dataset:
Analiza podobieństwa sytuacji makroekonomicznej i poziomu inwestycji w Unii Europejskiej w latach 2018-2020 w kontekście pandemii Covid-19
Authors: Pukin-Sowul Paulina , Markowski Lesław
Published: March 2023

The purpose of this article was to determine the macroeconomic and investment situation in 2018-2020 in the Member States of the European Union. The work also deals with the division of the European Union into three parts: the core, the periphery, and  Central and Eastern Europe. A critical analysis of the scientific literature was used to present the economic consequences of the pandemic. Ward's method was used to create a few clusters of European Union Member States that are most similar to each other in terms of macroeconomic situation and investments. During the pandemic, the macroeconomic and investment situation worsened. Moreover, there are three groups of member states in the European Union, which indicates that there are still significant development and economic disproportions between the groups in the EU.
Very sneaky crimes
Authors: Pozzi Giacomo
Published: March 2023

Milan is an increasingly safe city. Despite this, the insecurity perceived by citizens is growing. Particularly in social housing districts, squatting is considered by institutions, public opinion, but also by most regular residents, as one of the principle causes of urban insecurity. Based on ethnographic research conducted in Milan between 2015 and 2017, this article proposes an anthropological analysis of policies, norms, practices, and narratives related to the governance of housing illegality, showing how these representations contribute to producing a stigmatized, morally connoted, and criminalized image of squatters. In broader terms, starting with the ethnographic case of squatting, the article explores the anthropopoietic dynamics of social class construction and the centrality of moral categories in the production of urban inequality.
Influence of nitrogen fertilizers and predecessors on the productivity of winter wheat
Authors:   Institute of Bioenergy Crops and Sugar Beet NAAS, Ivanina V. V. , Korotenko I. M. ,   Institute of Bioenergy Crops and Sugar Beet NAAS
Published: March 2023

Topicality. Global warming requires the search for effective predecessors and doses of nitrogen fertilizers to obtain stable yields of high quality winter wheat grain. Purpose. To study the influence of the grain legume predecessor (peas) on the yield of winter wheat (Triticum aestivum L.), and establish the optimal dose of nitrogen fertilizers for the biologization of its cultivation. Methods. Long-term field and analytical. Results. The data of researches on the influence of legume predecessor (peas) and doses of nitrogen fertilizers on the productivity of winter wheat are given. It was found that the legume predecessor (peas) and nitrogen fertilizers significantly increased the yield and quality of winter wheat grain. It was defined that increasing the dose of nitrogen fertilizers for winter wheat from 40 to 80 kg/ha on both predecessors was effective. Conclusions. The application of N80P60K60 for winter wheat in the crop rotation link with peas provided the highest grain yield – 5.42 t/ha with an excess to the control without fertilizers by 1.02 t/ha. Under the predecessor (meadow fescue), the application of N80P60K60 decreased grain yield by 1.03 t/ha. It was found that an increase in the nitrogen fertilizer dose from 40 to 80 kg/ha for winter wheat was more effective in the peas link – grain yield increased by 0.56 t/ha, while in the meadow fescue link – by 0.38 t/ha. A clear correlation between dose of nitrogen fertilizers and winter wheat grain yield was established: with the coefficient of determination in the meadow fescue link – 0.9999, the peas link – 0.9966. The plowing of pea straw under winter wheat against the background of the dose of mineral fertilizers N60P60K60 was determined to be effective; the grain yield increased by 0.23 t/ha compared to the application of mineral fertilizers alone, with an absolute indicator of 5.36 t/ha. The application of mineral fertilizers in both links increased the growth of stem mass, ensuring the straw yield in the peas link by 0.4–0.7 t/ha higher than in the meadow fescue link. Under peas as a predecessor, the quality of winter wheat grain has significantly improved. In the control without fertilizers, the protein content in wheat grain after peas was 11.4 %, after meadow fescue – 11.0 %; for the application of a dose of N40P60K60 fertilizers – 11.8 % and 11.4 %, respectively; N60P60K60 – 12.0 % and 11.5 %, N90P60K60 – 12.1 % and 11.7 %. Due to the legume predecessor (peas), the protein content in the grain increased by 0.4–0.5 % compared to the meadow fescue as a predecessor. Key words: nitrogen, predecessor, peas, productivity, winter wheat
Effectiveness of non-surgical treatment combined with supervised exercise for lumbar spinal stenosis: A systematic review and meta-analysis
Authors: Urata Ryunosuke , Igawa Tatsuya , Ito Shomaru , Suzuki Akifumi
Published: March 2023

BACKGROUND: The benefits of combining supervised exercise in the non-surgical treatment of lumbar spinal stenosis (LSS) is unclear. OBJECTIVE: To compare the effectiveness of non-surgical treatments with and without supervised exercise for pain intensity, symptom severity, functional impairment/disability, walking distance, and quality of life (QOL) in LSS patients. METHODS: Randomized controlled trials (RCTs) evaluating combinations of supervised exercises were searched using four electronic databases up to August 13, 2020. Meta-analysis was conducted for immediate and long-term results. RESULTS: Three studies were identified, including 244 participants. Immediate-term results showed that leg pain intensity (mean distance [MD]: -0.94, 95% confidence intervals [95% CI]: -1.60 to -0.29, p< 0.01) and symptom severity (MD: -0.29, 95% CI: -0.50 to -0.08, p< 0.01) were lower in the study group than in the control group, and walking distance (MD: 415.83, 95% CI: 298.15 to 533.50, p< 0.001) and QOL were higher in the study group. Long-term results showed that functional disability/impairment (MD: -0.27, 95% CI: -0.49 to -0.04, p< 0.05) was lower in the study group than in the control group, and walking distance and QOL were higher in the study group. CONCLUSION: The number of studies on this topic was small and limited. Combinations of non-surgical treatment and supervised exercise may not provide significant benefits.
A landscape of participatory platform architectures: Ideas, decisions, and mapping
Authors: Renteria Cesar , Varela-Castro Samanta
Published: March 2023

Digital platforms are suitable alternatives to help governments open policy-making and public service delivery to external ideas. Platforms are very flexible and customizable, which makes them effective for a variety of participatory purposes, such as co-creation, co-production, innovation, or transactions. However, this diversity makes it difficult to define how different technical designs could shape the performance of these platforms. Literature has described different types of platforms, based on their participatory goals, but we still do not know enough about the diversity of platforms in terms of technical design. To address this gap, we conducted a cluster analysis to find patterns in the technical design of 52 participatory platforms worldwide. We observed three main architectures: Ideas for the City; Decisions and Debates; and Mapping. These findings are one step forward to better understanding how digital platforms could impose certain dynamics on the participatory processes.
Inferior Frontal Sulcal Hyperintensity on FLAIR is Associated with Small Vessel Disease but not Alzheimer’s Pathology
Authors: Xu Shan ,   and for behalf of Alzheimer’s Disease Neuroimaging Initiative (ADNI), Xie Linyun , Zhang Yao , Wu Xiao , Hong Hui , Zhang Ruiting , Zeng Qingze , Li Kaicheng , Luo Xiao , Zhang Minming , Sun Jianzhong , Huang Peiyu
Published: March 2023

Background: The inferior frontal sulci are essential sites on the route of cerebrospinal fluid outflow. A recent study suggests that inferior frontal sulcal hyperintensities (IFSH) on FLAIR images might be related to glymphatic dysfunction. Objective: To investigate whether IFSH is associated with Alzheimer’s disease (AD) pathology and cerebral small vessel disease (SVD) burden. Methods: We retrospectively collected data from 272 non-demented subjects in the ADNI3 database. The IFSH was assessed on 3D fluid-attenuated inversion recovery images. The standardized uptake value ratios of amyloid and tau PET were used to reflect the AD pathology burden. To measure the SVD burden, we assessed white matter hyperintensities (WMH), dilation of perivascular spaces, microbleeds, and lacunes. Finally, we performed ordinal logistic regression analyses to investigate the associations between the IFSH score and AD pathology and SVD burden. Results: The IFSH score was associated with the deep WMH score (OR, 1.79; 95% CI, 1.24 – 2.59) controlling for age and sex. The association remained significant in the multivariable regression models. There was no association between the IFSH score and AD pathology burden. Conclusion: This study suggests that the IFSH sign is associated with SVD but not AD pathology. Further studies are needed to confirm the findings.
Octadecaneuropeptide Ameliorates Cognitive Impairments Through Inhibiting Oxidative Stress in Alzheimer’s Disease Models
Authors: He Yan , Li Junjie , Yi Liling , Li Xiaohuan , Luo Man , Pang Yayan , Wang Maoju , Li Zhaolun , Xu Mingliang , Dong Zhifang , Du Yehong
Published: March 2023

Background: Alzheimer’s disease (AD) is a neurodegenerative disorder characterized by amyloid-β peptide (Aβ) deposition. Aβ accumulation induces oxidative stress, leading to mitochondrial dysfunction, apoptosis, and so forth. Octadecaneuropeptide (ODN), a diazepam-binding inhibitor (DBI)-derived peptide, has been reported to have antioxidant properties. However, it is unclear whether ODN has neuroprotective effects in AD. Objective: To profile the potential effects of ODN on AD. Methods: We established a mouse model of AD via microinjection of Aβ in the lateral ventricle. Utilizing a combination of western blotting assays, electrophysiological recordings, and behavioral tests, we investigated the neuroprotective effects of ODN on AD. Results: DBI expression was decreased in AD model mice and cells. Meanwhile, ODN decreased Aβ generation by downregulating amyloidogenic AβPP processing in HEK-293 cells stably expressing human Swedish mutant APP695 and BACE1 (2EB2). Moreover, ODN could inhibit Aβ-induced oxidative stress in primary cultured cells and mice, as reflected by a dramatic increase in antioxidants and a decrease in pro-oxidants. We also found that ODN could reduce oxidative stress-induced apoptosis by restoring mitochondrial membrane potential, intracellular Ca2+ and cleaved caspase-3 levels in Aβ-treated primary cultured cells and mice. More importantly, intracerebroventricular injection of ODN attenuated cognitive impairments as well as long-term potentiation in Aβ-treated mice. Conclusion: These results suggest that ODN may exert a potent neuroprotective effect against Aβ-induced neurotoxicity and memory decline via its antioxidant effects, indicating that ODN may be a potential therapeutic agent for AD.
An interactive opposition matrix and regulatory gene fusion strategy for evolutionary multitasking
Authors: Bi Shunjie , Wu Zhiyong , Gao Peng , Ding Hangqi
Published: March 2023

Evolutionary multitasking algorithms (EMT) study how to solve multiple optimization tasks simultaneously by evolutionary computation, and investigate how knowledge sharing can accelerate the convergence of individual tasks, meaning that useful knowledge gained in solving one task can be used to solve other tasks. However, as the evolutionary search continues, the learnability among tasks may decrease, leading to a decrease in the efficiency of knowledge transfer and affecting the population evolution. To solve this problem, a new multifactorial evolutionary algorithm (MFEA-VOM) is proposed in this paper, which applies to three strategies, namely, implicit conversion strategy, opposition matrix strategy, and regulatory gene fusion strategy. The implicit conversion strategy is applied to minimize the threat of negative knowledge migration and reduce the impact caused by negative knowledge migration. The proposed opposition matrix strategy explores more unknown areas of the population and improves the exploration ability of the population by further exploring and utilizing the unified search space, transforming the parent individuals into an appropriate task through mapping relationships, and reducing the gap between tasks. The proposed regulatory gene fusion strategy is applied to the reproduction of individuals to produce better individuals applicable to the task, submitting the efficiency of knowledge transfer. Through a comprehensive experimental analysis of the EMT optimization problem, the experimental results demonstrate the better performance of MFEA-VOM compared to other EMT algorithms.
Location of medical warehouse applying BBTOPSIS based multi-criteria decision making with basic uncertain information
Authors: Tao Zhifu , Wang Xinyu , Zhu Benji , Wu Peng
Published: March 2023

The aim of this paper is to introduce a combination of Basic Uncertain Information (BUI) and a Bag Based Technique for Order Preference by Similarity to Ideal Solution (BBTOPSIS), which is further applied to multi-attribute decision making (MADM) with BUI. To realize the decision process, a novel comparison law is developed to derive the superiority, inferiority and noninferiority multi-attribute canonical fuzzy bags. Mathematical properties of the developed comparison law is discussed. Besides, to extend traditional TOPSIS method in BUI, a novel distance measure between BUI is also introduced, which is composed by distance between transformed intervals and similarity between BUI. Superiority of the developed distance measure is illustrated. Finally, a decision algorithm is presented to solve MADM with BUI by using the developed BBTOPSIS under BUI. A numerical example on location of medical warehouse is presented to illustrate the feasibility and validity of the developed decision method.
Fuzzy-Rough induced spectral ensemble clustering
Authors: Yue Guanli , Deng Ansheng , Qu Yanpeng , Cui Hui , Liu Jiahui
Published: March 2023

Ensemble clustering helps achieve fast clustering under abundant computing resources by constructing multiple base clusterings. Compared with the standard single clustering algorithm, ensemble clustering integrates the advantages of multiple clustering algorithms and has stronger robustness and applicability. Nevertheless, most ensemble clustering algorithms treat each base clustering result equally and ignore the difference of clusters. If a cluster in a base clustering is reliable/unreliable, it should play a critical/uncritical role in the ensemble process. Fuzzy-rough sets offer a high degree of flexibility in enabling the vagueness and imprecision present in real-valued data. In this paper, a novel fuzzy-rough induced spectral ensemble approach is proposed to improve the performance of clustering. Specifically, the significance of clusters is differentiated, and the unacceptable degree and reliability of clusters formed in base clustering are induced based on fuzzy-rough lower approximation. Based on defined cluster reliability, a new co-association matrix is generated to enhance the effect of diverse base clusterings. Finally, a novel consensus spectral function is defined by the constructed adjacency matrix, which can lead to significantly better results. Experimental results confirm that the proposed approach works effectively and outperforms many state-of-the-art ensemble clustering algorithms and base clustering, which illustrates the superiority of the novel algorithm.
An integrated decision-making methodology for green supplier selection based on the improved IVIF-CPT-MABAC method
Authors: Wang Jing , Cai Qiang , Wang Hongjun , Wei Guiwu , Liao Ningna
Published: March 2023

Green supply chain management attaches great importance to the coordinated development of social economy and ecological environment, and requires enterprises to consider environmental protection factors in product design, packaging, procurement, production, sales, logistics, waste and recycling. Suppliers are the “source” of the entire supply chain, and the choice of green suppliers is the basis of green supply chain management, and their quality will directly affect the environmental performance of enterprises. The green supplier selection is a classical multiple attribute group decision making (MAGDM) problems. Interval-valued intuitionistic fuzzy sets (IVIFSs) are the extension of intuitionistic fuzzy sets (IFSs), and are utilized to depict the complex and changeable circumstance. To better adapt to complex environment, the purpose of this paper is to construct a new method to solve the MAGDM problems for green supplier selection. Taking the fuzzy and uncertain character of the IVIFSs and the psychological preference into consideration, the original MABAC method based on the cumulative prospect theory (CPT) is extended into IVIFSs (IVIF-CPT-MABAC) method for MAGDM issues. Meanwhile, the method to evaluate the attribute weighting vector is calculated by CRITIC method. Finally, a numerical example for green supplier selection has been given and some comparisons is used to illustrate advantages of IVIF-CPT-MABAC method and some comparison analysis and sensitivity analysis are applied to prove this new method’s effectiveness and stability.
Hybrid statistical and recurrent neural network architecture implementation in FPGA device used for severe acute respiratory syndrome coronavirus detector
Authors: Senthilkumar V.M. , Thenmozhi S. , Kumudavalli M.V. , Yedukondalu U.
Published: March 2023

The Severe Acute Respiratory Syndrome (SARS) are caused by the strain of the corona virus causes cold and influenza. In recent years, the covid pandemic spread throughout the world killing millions of people. The fatality rate has increased and it also leads to pneumonia for breathing problems. Several methods like wavelet filter banks, time series methods, Neural networks was developed for the diagnosis of severe acute respiratory syndrome coronavirus, still the accuracy can be improved. Less works is carried out for hardware implementation for syndrome detectors. This proposed work represents the FPGA (Field Programmable Gate Array) implementation of the hybrid method using Convolutional Recurrent neural network and Independent Components Analysis (ICA). The architecture extracts the ccomplex features from ECG (Electrocardiogram) samples. The hybrid Statistical and Recurrent Neural Network (RNN) Architecture implementation in a real time hardware detects the Severe Acute Respiratory Syndrome presented. The proposed method can be implemented in MATLAB, Embedded and DSP (Digital Signal Processor). But, the FPGAs consume less power computationally efficient. Since, ICA is an efficient method due to its blind source separation property accumulate the extraction of features accurate described. The mathematical model for the analysis of ECG signal using RNN is analyzed and based on that the proposed model is selected. On investigation the hybrid method using the statistical and neural network model is efficient in the analysis of biomedical signal especially ECG. The proposed ICA based RNN model is mathematically evaluated and tested with real time data. For implementation, Quartus software is used for effectiveness of the proposed model.
УДОСКОНАЛЕННЯ ФІЗИЧНОЇ ПІДГОТОВЛЕНОСТІ У КУРСАНТІВ НАЦІОНАЛЬНОЇ АКАДЕМІЇ ДЕРЖАВНОЇ ПРИКОРДОННОЇ СЛУЖБИ УКРАЇНИ ІМЕНІ БОГДАНА ХМЕЛЬНИЦЬКОГО
Authors: РЕФЕЛЬ Вадим , ГЕВЧУК Іванна
Published: March 2023

У статті обґрунтовано методику вдосконалення фізичної підготовленості курсантів Національної академії Державної прикордонної служби України імені Богдана Хмельницького (далі – НАДПСУ) на кожному із курсів навчання. Здійснено аналіз рівня та динаміки показників фізичного стану курсантів НАДПСУ та з’ясовано, що рівень фізичної підготовленості майбутніх офіцерів прикордонників упродовж навчання визначався як вищий за середній. Констатовано покращення значення індексу рівня фізичного стану курсантів на етапі вдосконалення через систематичні заняття різними формами фізичної підготовки: навчальних занять, ранково-фізична зарядка, спортивно-масова робота, фізичних тренування в процесі навчально-бойової діяльності та індивідуальних фізичних тренувань. Здійснено аналіз наукової літератури різного спрямування. Визначено, що метою фізичної підготовки є забезпечення фізичної готовності військовослужбовців до професійно-службової діяльності, а головними завданням її є: адаптація військовослужбовців ДПСУ до подальшої військової служби, постійне вдосконалення найголовніших аспектів фізичної підготовки. У викладі основного змісту статті представлено впровадження авторської методики, що дозволить підвищити ефективність системи фізичної підготовки у курсантів НАДПСУ за рахунок розвитку загальної фізичної підготовленості курсантів, формування “фундаменту”, що сприятиме розвитку професійно-прикладних навичок курсантів на подальших етапах навчання, надано рекомендації щодо покращення фізичної підготовленості військовослужбовців ДПСУ. Окреслено напрямки спрямованості фізичної підготовленість у вищих військових навчальних закладах (далі – ВВНЗ ), а також доведено, що одним з основних елементів підготовки майбутніх офіцерів є забезпечення розвитку фізичних можливостей та навчання їх доцільного використання у професійній діяльності.
ФОРМУВАННЯ УПРАВЛІНСЬКИХ КОМПЕТЕНЦІЙ У МАЙБУТНІХ ОФІЦЕРІВ- ПРИКОРДОННИКІВ НА ОСНОВІ МЕТОДУ ОПЕРАТИВНО-СЛУЖБОВИХ СИТУАЦІЙ
Authors: ТОРІЧНИЙ Олександр
Published: March 2023

У статті розглянуто актуальну в педагогіці проблему пошуку ефективних механізмів розвитку управлінських компетенцій майбутніх офіцерів-прикордонників. З’ясовано, що зазначена проблема потребує додаткового вивчення та дослідження, оскільки управлінська компетентність є важливою складовою готовності офіцера-прикордонника до професійної діяльності. Зокрема, як інноваційний метод навчання, розглядається можливість використання в освітньому процесі майбутніх офіцерів-прикордонників метод оперативно-службових ситуацій, який спрямований на формування саме управлінських компетенцій у курсантів вищого військового навчального закладу ДПСУ. Даний метод всебічно охарактеризовано, виявлено його особливості та основні риси, що відрізняються від кейс-методу. Коротко описано алгоритм застосування запропонованого методу під час проведення занять з військовопрофесійних дисциплін, визначено його перспективи як дієвий механізм щодо всіх видів педагогічного контролю. Зроблено акцент на дослідницькому потенціалі, який може бути основою створення моделі процесу формування управлінських компетенцій. На підтвердження ефективності застосування методу оперативно-службових ситуацій у підготовці курсантів, подано результати педагогічного експерименту, проведеного у НАДПСУ. Надійність та точність висновків формуючого експерименту, зроблених на підставі обмеженого статистичного матеріалу, підтверджується результатами застосованих методів математичної статистики. У галузі військової освіти очевидною є необхідність пошуку, впровадження сучасних інноваційних методів навчання та педагогічних технологій, здатних підвищити ефективність розвитку у курсантів та офіцерів управлінських компетенцій, актуальних для прийняття управлінських рішень у професійній діяльності. Один з них – це метод оперативно-службових ситуацій, що має інтегративні та адаптивні можливості у формуванні управлінських компетенцій.
ОСОБЛИВОСТІ ТА ЗМІСТ ПРОФЕСІЙНОЇ ПІДГОТОВКИ ОФІЦЕРІВ ПРИКОРДОННОЇ ПОЛІЦІЇ В ЧЕCЬКІЙ ТА СЛОВАЦЬКІЙ РЕСПУБЛІКАХ
Authors: ДІДЕНКО Олександр , ШУМОВЕЦЬКА Світлана , ПАЛАГНЮК Марко
Published: March 2023

У статті проаналізовано досвід професійної підготовки поліцейських Чеської та Словацької Республік. Встановлено, що функції охорони державного кордону виконує прикордонна поліція у Словаччині та іноземна поліція у Чехії. Уточнюються умови, яким повинні відповідати громадяни цих держав для вступу до їх відомчих навчальних закладів, та порядок прийому на навчання. Розкрито особливості професійної підготовки майбутніх фахівців-прикордонників у цих країнах, охарактеризовано зміст підготовки та навчальне навантаження студентів. Основну увагу приділено характеристиці освітніх рівнів професійної (поліцейської) освіти. Встановлено, що навчання у вищезазначених країнах має багато спільного. Зокрема, базову, спеціальну та середню професійну підготовку майбутніх поліцейських здійснюють середні професійно-технічні навчальні заклади, а саме п’ять регіональних училищ Чехії та три Словаччини. Спеціалістів прикордонної служби готують централізовано в деяких із вищезгаданих закладів, зокрема у Вищій і Середній поліцейській школі Міністерства внутрішніх справ у Голешові в Чехії та Середній професійній школі Поліцейського корпусу Міністерства внутрішніх справ Чехії. Кошице в Словаччині. Встановлено, що базова підготовка в основному включає наступні етапи: вступ до спеціальності, безпосереднє навчання, практика і завершальний етап навчання. Майбутні прикордонники здобувають вищу поліцейську освіту в академіях: The Police Academy в Празі (Чехія) та Academy of Police Corps в Братиславі (Словаччина). Ці заклади забезпечують навчання на всіх трьох рівнях освіти. Навчальне навантаження складає 60 кредитів на кожен навчальний рік. Навчальні плани, як правило, складаються з трьох блоків навчальних дисциплін: обов’язкових, обов’язкових фахових та дисциплін за вибором. Обов'язкові дисципліни є загальними для всіх спеціальностей. Обов'язкові фахові дисципліни вивчаються відповідно до спеціалізації. Дисципліни за вибором пропонуються абітурієнтам для набору необхідної кількості кредитів.
Flujos brutos de capital de portafolio de no residentes y residentes y el rol de la política monetaria
Authors: Melo-Velandia Luis Fernando , Rincón-Castro Hernán , Toro-Córdoba Jorge Hernán
Published: March 2023

El objetivo del estudio es evaluar los principales determinantes de los flujos brutos de entradas y salidas de capital de portafolio de Colombia de los inversionistas no residentes y residentes y, en particular, estudiar el rol de la tasa de interés de política monetaria interna. El marco conceptual es el modelo estándar de portafolio aumentado con variables que miden factores de expulsión y atracción y medidas de sorpresas macroeconómicas. El modelo de regresión es una vector autorregresivo con variables exógenas o VAR-X y la información es de frecuencia mensual del periodo 2011 a 2020. Los resultados principales indican que la tasa de interés de política no resulta ser un determinante estadísticamente significativo de los flujos de portafolio de los inversionistas no residentes ni de los residentes con las estadísticas y durante el periodo analizados. Adicionalmente, las estimaciones evidencian diferencias importantes en las respuestas de los inversionistas no residentes y residentes ante otras perturbaciones macroeconómicas internas y externas. Finalmente se comprueba que existe hasta cierto grado una sustitución entre las salidas de capital de portafolio de los no residentes y las entradas de capital de los residentes. Esto significa que los movimientos de unos amortiguan los efectos cambiarios, de balanza de pagos y, probablemente financieros y macroeconómicos de los otros.
Investigation of a Tunable Microwave Photonic Filter Based on an Acetylene Reference Cell
Authors: Tatsenko I. Yu. , Shamrai A. V. , Stepanov S. I. , Ustinov A. B.
Published: March 2023

Introduction.Recently, the development of tunable microwave photonic filters has attracted great scientific and practical interest. Such microwave photonic filters are a good alternative to traditional electrical solutions, due to low losses, wide operating frequency range and such filters can be easily integrated into various telecommunication systems. By using an acetylene reference cell and a laser with tunable wavelength can make it possible to create tunable microwave photonic filter with wide operating frequency range.

Aim.Investigation of the characteristic of a tunable microwave photonic filter based on an acetylene reference cell, as well as research possible solution to reduce losses in filter bandwidth; numerical simulation of microwave photonic filter characteristics.

Materials and methods.Experimental study was carried out on an experimental prototype of a tunable microwave photonic filter. The filter consisted of a laser with a tunable wavelength, a phase modulator, an acetylene reference cell, an optical fiber connecting the gas cell with a photodetector, and a photodetector. Theoretical study was carried out by modeling of the transmission characteristics of the microwave photonic filter.

Results.Experimental transmission characteristics of a tunable microwave photonic filter were obtained. The tuning of the filter bandwidth by tuning laser wavelength was studied. Modeling of transmission characteristics of microwave photonic filter was performed. Possible solution to reduce losses in filter bandwidth was proposed.

Conclusion.A tunable microwave photonic filter based on an acetylene reference cell is proposed. Losses in the filter bandwidth was about −30 dB. Using high-power laser and a photodetector with a high photocurrent can reduce losses in the filter bandwidth.
Модель формування пористості брикетів губчастого титану на стадії спікання
Authors: Klymenko Leonid , Andreev Vyacheslav , Sluchak Olexandr , Pryshchepov Oleg , Shchesiuk Oleg
Published: March 2023

This article examines the peculiarities of the formation of interparticle connections in porous products based on titanium powders using sponge titanium as an example, which are used in the aviation industry and airfield management. The developed model is based on the results of a previous study, where the structure of cuboctahedral and inverse cuboctahedral clusters of packing spherical powder particles was determined at the most dense packing. During the study, a model of the fusion of particles at the points of pressing deformation due to recrystallization under the influence of high temperatures in a vacuum was developed. 4 main stages of powder briquette sintering were considered, and a mathematical model was developed for each of them. Thus, the stage of liquid evaporation is considered from the viewpoint of the cavitation effect of boiling on the surface of particles and boiling of plasticizers. Euler's film boiling formula was used to describe the forces acting on the particle surface; Tolubinsky's formula was used for bubble boiling; convective heat exchange was considered part of the final stage of sintering. The stage of the formation of metallic bonds is modeled on the basis of the results of practical studies in the REV 5.5 furnace, recrystallization based on differential scanning colorimetry on the NETZSCH STA 449F1 Proteus device, and determining the change in grain size according to the E19 ASTM scales using the Jeffers method. The diffusion stage is modeled on the basis of the approximation of the particle deformation model in the contact zones at the pressing stage using the Frenkel formula. Linear shrinkage is modeled based on direct measurement of sample sizes before and after sintering. The developed model has a certain versatility when applied to simulate the interaction of particles of metal powders under the conditions of the formation of porous briquettes, especially if the shape of the particles is close to round or spongy. The obtained result will make it possible to more accurately evaluate such a factor as the adhesion between the particles of the pressing and predict the tensile strength of the material. Additionally, due to the mathematical characterization of the peculiarities of the formation of corpuscular porosity under the conditions of sintering in a vacuum, we can design materials with differentiated porosity, as well as lay the foundations for powder 3D printing of such materials, by assembling grain by grain, or layer by layer with the adjustment of the force of particle compression one into the other.
Методика проведення чисельного дослідження камери імпульсного детонаційного двигуна
Authors: Aksonov Oleksandr
Published: March 2023

The subject of research in this article is the process of detonation propagation in the chamber of a pulse detonation engine. Experimental research on detonation engines is a complex and expensive process that requires high-speed, high-precision equipment to obtain high-quality reliable results. Therefore, to conduct preliminary research, numerical experiment methods using mathematical simulation tools should be used. This work analyzes the possibility of applying known calculation models to study the detonation propagation process in the chamber of a pulse detonation engine. The task: to study the influence of the application of existing calculation models on the accuracy of numerical simulation of the detonation process; analyze the use of existing calculation models for the study of the detonation propagation process. The main method used in this work is the method of mathematical simulation using CFD technologies. The following results were obtained. The work considered the application of various turbulence models, chemical transition models, solvers and mesh sizes in modeling processes in the chamber of a pulse detonation engine. The application k-ε and k-ω turbulence models and their modifications are considered. The closest to the real result is obtained when applying k-ω model turbulence with SST modification. Generalized modification of this model averages the parameters on the front of the detonation wave, which leads to the destruction of the structure of the front. Taking into account the peculiarities of the processes occurring at the front of the detonation wave, the eddy-dissipation concept method will be better for modeling chemical transition, compared to the finite-rate method. Using the finite-rate method shows instantaneous combustion at the front of the detonation wave. This leads to a sharp increase in the parameters at the detonation front with its further separation from the main flow. To obtain a qualitatively reliable result of the parameters at the front of the detonation wave, cell dimensions of no more than 1/16 mm should be used. The application of the eddy-dissipation concept method with k-ω SST turbulence model allows obtaining the closest results to the experimental data. The deviation of pressure and velocity values obtained during modeling does not exceed 5% from their actual values. The temperature deviation does not exceed 10%. This is determined by the selected kinetic scheme of chemical transitions. All considered models and methods affect only the structure and development of the detonation wave front. There are no significant differences in the values of the parameters along the front (in the Taylor zone). Conclusion. The obtained results are of practical importance for the design and research of detonation engines. The use of the proposed calculation models will allow conducting numerical experiments for the pulse detonation engine chamber with sufficient accuracy, in comparison with experimental data.
Numerical study of the aerodynamic characteristics of airfoil with high-lift devices
Authors: Krashanitsa Yuri , Zhyriakov Dmytro
Published: March 2023

The subject matter of this article is the aerodynamic profile of the wing with high-lift devices in the aircraft transport category. When high-lift devices are released, the aerodynamic flow of the wing changes significantly, this changes the stress-strain state of the wing. This relates not only to an increase in lift force due to a change in the curvature of the wing and an increase of the wing area, but also due to a change of the position of the center of pressure relative to the chord of the wing. The goal is to study the influence of wing high-lift devices on the aerodynamic characteristics of the profile during take-off, cruise, and landing cases using numerical methods. The obtained data will be used to determine the loads on the wing in various flight cases. The task is to determine the aerodynamic coefficients of lift and drag forces, changing the position of the pressure center during flight cases: take-off, cruise, and landing. The aerodynamic profile b737c-il was used in the analysis. The single-slot slat and double-slots flap were used in the analysis model. The numerical methods with the CAE system ANSYS Fluent were used. The solver models k-epsilon and transition SST were used for comparison. The use of numerical methods in the process of designing aircraft structures is widely used to accurately determine the aerodynamic parameters of the wing in various flight cases. The following results were obtained: the dependence of the lift coefficient on the angle of attack, the lift coefficient on the drag coefficient, and the position of the center of pressure along the chord of the profile for cruise, take-off, and landing flight cases. Conclusion. The scientific novelty of the results obtained is as follows: the use of numerical methods for determining the aerodynamic characteristics of a wing with high-lift devices in particular, determining the dependence of the position of the center of pressure relative to the chord and at different angles of attack. The obtained results will be used to determine the load on the wing, in particular the distributed load on the slats and flaps, to clarify the torque moment in the wing section where high-lift devices are used.
PENGARUH PENAMBAHAN ENKAPSUL BIOCHAR TANDAN KOSONG KELAPA SAWIT TERHADAP PERKEMBANGAN AKAR SENGON (Falcataria moluccana)
Authors: Yunita Eva , Riniarti Melya , Hidayat Wahyu , Niswati Ainin , Prasetia Hendra , Hasanudin Udin , Banuwa Irwan Sukri
Published: March 2023

Limbah tandan kosong kelapa sawit dengan jumlah yang banyak dapat dimanfaatkan menjadi biochar yang diharapkan dapat memperbaiki sifat fisik, biologi dan kimia serta menjadi pembenah tanah (soil amendment). Penanganan limbah yang tidak tepat akan mencemari lingkungan, upaya untuk meminimalisirnya yaitu dengan pemanfaatan menjadi biochar. Berat jenis biochar yang sangat rendah menyebabkan sulit tercampur merata dengan media tanam, cara mengatasinya dengan metode enkapsul. Pemberian aplikasi enkapsul biochar untuk perkembangan tanaman sengon merupakan alternatif yang baik. Serta dapat melindungi bahan aktif yang ada di biochar menggunakan bahan pembungkus, sehingga dapat memperbaiki kualitas dan pertumbuhan tanaman. Tujuan penelitian ini adalah untuk mengetahui pengaruh pemberian enkapsul biochar tandan kososng kelapa sawit terhadap perkembangan akar sengon. Penelitian menggunakan rancangan acak lengkap dengan empat perlakuan yaitu tanpa penggunaan enkapsul biochar, menggunakan enkapsul biochar dengan persentase 5%, menggunakan enkapsul biochar dengan persentase 10%, dan menggunakan enkapsul biochar dengan persentase 25%. Analisis data yang digunakan adalah analisis ragam (Anara) dan uji beda nyata terkecil (BNT). Hasil penelitian menunjukkan bahwa pemberian enkapsul biochar dapat meningkatkan pertumbuhan dan perkembangan yang baik dibandingkan dengan tanpa penggunaan enkapsul biochar. Penelitian ini menyimpulkan bahwa pemberian enkapsul biochar tandan kosong kelapa sawit dengan persentase 25% menunjukkan hasil yang paling baik pada pertumbuhan akar sengon dibandingkan dengan perlakuan lainnya.
DEFORMATION-HARDENING FIBER COMPOSITES: DEFINITION, PRINCIPLES OF PREPARATION AND PROSPECTS OF APPLICATION
Authors: Smirnova Olga M. , Kharitonov Aleksey M.
Published: March 2023

The article presents the results of a study of the effect of microfiber based on high - density polyethylene and polybenzoxazole on the axial stretching of fibrocomposites. The definition of the phenomenon of deformation hardening of a hydration hardening fibrocomposite is proposed. Characteristic deformation diagrams of various fiber - reinforced composites are obtained and analyzed. The ranges of values of deformation hardening and plastic deformation are determined, as well as the factors that determine these characteristics are stated. From a practical point of view the increase of the resistance of fibrocomposite while maintaining its integrity in conditions of high values of plastic deformations opens up the possibility of using such materials for repairing damaged superstructures and ceilings, durable (heat and bio - resistant) sealing of joints of precast reinforced concrete structures.
FILLING OF WOOD-POLYMER COMPOSITIONS WITH BASALT FIBERS
Authors: Khantimirov Ayaz G. , Abdrakhmanova Lyailya A. , Khozin Vadim G.
Published: March 2023

In this work we studied the influence of basalt fibers of different length on physical and mechanical characteristics of wood - polymer composites based on polyvinyl chloride. The studies showed that the most effective length of the fibers is 6.4 and 12.7 mm, and the bending strength increased by more than 30 %, and abrasion during abrasion decreased on average by 25 %. The proposed wood - polymer composites can expand the range of manufactured products on their basis.
FUNDAMENTALS OF THE GENESIS OF RUSSIA ARCHITECTURE OF THE FIRST HALF XVIII CENTURY IN THE CONTEXT OF LEGISLATIVE REFORMS
Authors: Zolotareva Milena V.
Published: March 2023

In accordance with a certain periodization of urban planning and architectural and construction activities in the context of legislative initiatives of the state and the supreme power for each of their identified stages (Petrovsky - the first quarter of the XVIII century, 1725-1741, 1741-1761), the degree of influence of reforms on urban planning and architectural and construction areas was clarified. This, in turn, it made possible to identify the most significant reforms for each of the stages that influenced the development of architectural practice. Consideration of the impact of legislative initiatives, regulation of urban planning and architectural and construction activities, the effectiveness of this regulation gives a full picture of construction and design practice in Russia during the first half of the XVIII century, and also determines the direction of the development vector ib this sphere during subsequent periods.
RENTAL HOUSING MARKET: DYNAMICS AND PROSPECTS OF DEVELOPMENT
Authors: Kashina Ekaterina V. , Globa Svetlana B. , Byrdin Dmitry A.
Published: March 2023

The purpose of the article is to study the dynamics and development prospects of the rental housing market. Methods of statistical, economic and econometric analysis, methods of abstraction, analysis and synthesis, induction and deduction, and others were used for the study. The object of research is the processes that influence the development of the rental housing market and determine its functioning. The significant role of the rental housing market for expanding supply in the residential real estate market and providing urban residents with a place to live in various life situations is revealed, but insufficient regulation of the development of the rental housing market by the state. At the same time, the need for structural changes in this market and the need to create transparent and understandable conditions for the interaction of counterparties are growing.
Autorité, autoritarisme, politique, pouvoir, liberté et violence à l'Instituto de Filosofia e Teologia (IFT) : une analyse à travers Hannah Arendt et Norberto Bobbio
Authors: Paula Sérgio Peres de
Published: March 2023

À travers une discussion de certains concepts tels que « Autorité », « Autoritarisme », Politique, Pouvoir, Liberté et Violence, de Hannah Arendt et Norberto Bobbio, une approche est faite sur l’Instituto de Filosofia e Teologia (IFT), qui existait à Sao Paolo Brésil. Institution inter-congrégationnelle, née d’une proposition d’adaptation de la formation sacerdotale aux nouveautés du Concile Vatican II, en 1965, dans un contexte de polémiques et de contestations politiques externes et internes à l’Église catholique, l’IFT s’éteint en 1969. La façon dont H Arendt et N. Bobbio abordent les concepts d’Autorité et ses corrélats aide à mieux comprendre les faits.
Власть, авторитаризм, политика, власть, свобода и насилие в Instituto de Filosofia e Teologia (IFT): анализ Ханны Арендт и Норберто Боббио
Authors: Paula Sérgio Peres de
Published: March 2023

Путем обсуждения некоторых понятий, таких как «Авторитет», «Авторитаризм», «Политика», «Власть», «Свобода и Насилие», от Ханны Арендт и Норберто Боббио делается подход к Instituto de Filosofia e Teologia (IFT), существовавшему в Сан-Франциско. Пауло Бразилия. Межконгрегационное учреждение, возникшее как предложение адаптировать священническое образование к нововведениям Второго Ватиканского Собора в 1965 году, в контексте полемики и политических споров, внешних и внутренних по отношению к Католической церкви, IFT было ликвидировано в 1969 году. То, как Х. Арендт и Н. Боббио рассматривают концепции авторитета и его коррелятов, помогает лучше понять факты.
Commentary on Italy's international seafood trade and its impacts
Authors: Romanelli Michele , Giovanardi Otello
Published: March 2023

Being within a geographical area, EU-27, which imports a large proportion of the fish products consumed annually from abroad, Italy finds itself in a particularly critical situation; domestic production from fishing and aquaculture on the whole accounts for only 20% of consumption and even less in the case of crustaceans and cephalopods. Despite its strong dependence on foreign countries, per capita consumption is quite high, at 31 kg/y in recent times; furthermore, among the imports from abroad there is a large number of species (or their families) mostly obtained through fishing. A wiser exploitation of national fishing resources, a greater development of domestic aquaculture and consumption patterns relying less on wild fish and shellfish are desirable.
Confronto fra l'efficacia della terapia di gruppo cognitivo-comportamentale e l'ipnosi cognitiva sulla riduzione della depressione tra gli adolescenti con disturbo da lutto
Authors: Nameghi Parisa , Modenese Michele
Published: March 2023

Il lutto è un termine utilizzato per descrivere le reazioni psicologiche di coloro che subiscono una grande perdita. Il presente studio è stato effettuato per compa-rare l'efficacia della terapia di gruppo cognitivo-comportamentale con l'ipnosi co-gnitiva di gruppo per ridurre la depressione negli adolescenti in lutto. Due gruppi hanno ricevuto rispettivamente otto sessioni di terapia cognitivo-comportamentale e otto d'ipnosi cognitiva, mentre, il gruppo di controllo non ha ricevuto alcun trat-tamento. I risultati dello studio indicano l'efficacia di terapie psicologiche nel trat-tamento del disturbo da lutto considerando, inoltre, le minori complicazioni di que-ste terapie rispetto al maggior impatto sugli adolescenti che causano i trattamenti farmacologici.
Interocezione e Ipnosi: utilizzare le modificazioni interocettive in ipnoterapia
Authors: Perica Maria Cristina
Published: March 2023

L'autore esplora il moderno concetto d'interocezione e il ruolo delle atipie inte-rocettive quale fattore trans-diagnostico a differenti disturbi mentali, al fine di pre-sentarne le implicazioni per la psicoterapia ericksoniana. Vengono esaminati i pro-cessi interocettivi, in termini di dimensioni, caratteristiche e traiettorie di sviluppo, evidenziandone il ruolo centrale nell'esperienza emozionale. Viene presentato co-me osservare, valorizzare e utilizzare le modificazioni dei processi interocettivi in ipnosi ed esemplificato, attraverso casi clinici, come tale plasticità possa promuo-vere una rielaborazione globale dell'esperienza emozionale nel contesto del rap-port.
La leggerezza della concretezza e dell'esperienza: incontro con il Dr. Mario Marazzi
Authors: Paganelli Matteo
Published: March 2023

Abbiamo realizzato questa intervista con il Dott. Mario Marazzi, parlando di lui, della sua esperienza nella Scuola di Ipnosi Ericksoniana (SIIPE) e presso la Società Italiana di Ipnosi. Abbiamo parlato del suo lavoro e della sua esperienza con l'ipnosi, anche nel tempo della pandemia.