bluuebunny/crossref_metadata_2025 huggingface dataset:
Photosynthetic activity and productivity of the sunflower hybrid warrior depending on growing conditions
Authors: Nikitenko O.V. , Litoshko S.V.
Published: March 2021

As a result of the conducted in 2016–2018 studies on the study of the features of photosynthetic activity of the Ratnik hybrid sunflower found that the indicators of the leaf area of one plant and one hectare changed under the influence of the use of mineral fertilizers and growth regulators and were large according to the classical system of basic tillage. The largest indices of the leaf surface area of one plant in all systems of basic tillage were noted with the introduction of full fertilizer N60P60K60. The use of growth regulators in all combinations resulted in an increase in leaf area per plant and per hectare. Large indices of net productivity of photosynthesis were noted in crops according to the classical system of basic tillage, which were, depending on the scheme of drug use: on the control (without fertilizers) – 5,95–6,16 g/m2 × day, in variants with the introduction of N40 – 6,31–6,56 g/m2 × day, in variants with the introduction of N40P60 – 6,25–6,47 g/m2 × day in the variants with the introduction of N60P60K60 – 6,29–6,42 g/m2 × day. The application of mineral fertilizers in various doses contributed to an increase in the net productivity of photosynthesis: according to the classical system by 0,31–0,44, according to the moldboard-free system by 0,02–0,24, at the minimum 0,01–0,08 g/m2 × day. The most favorable conditions for the formation of productivity by sunflower plants have developed according to the classical system of basic tillage with a yield depending on the dose of fertilizers and the option of using growth regulators 2,62–3,46 t/ha. The highest yields of the Ratnik hybrid sunflower – 3.46 and 3.45 t/ha, were obtained when growing according to the classical system of basic tillage, applying mineral fertilizers in a dose of N60P60K60 for pre-sowing cultivation of the second and fifth options for using growth regulators: 2. Rost-concentrate + Chelatin oilseeds (6–8 pairs of real leaves) 5.1 processing: Chelatin phosphorus-potassium + Chelatin мultimix + Chelatin mono boron (3–4 pairs of real leaves), 2 processing: Chelatin mono boron (6–8 pairs of real leaves). The formation of the crop was largely influenced by the system of basic tillage (r = -0.66) and the use of mineral fertilizers (r = 0.61) and the weak use of drugs (r = 0.17). It should be noted the close relationship between yield and leaf surface area (r = 0.78), CPF (r = 0.78), dry matter weight per plant (r = 0.99) and seed weight (r = 0.97 ).
Key words: sunflower, system of basic tillage, mineral fertilizer, growth regulator, leaf area, net productivity of photosynthesis, yield.
Influence of tillage methods on the water-physical conditions of chernozem typical and winter wheat yield
Authors: Diomkin O.O.
Published: March 2021

The article presents the results of three-year studies to determine the effectiveness of local chisel, ultra-deep chisel, chisel conventional and disk tillage when growing winter wheat after fallow in the conditions of the Left-Bank Forest-Steppe of Ukraine.
It has been established that changing the plowing of local or disking soil tillage leads to an increase in the density and hardness of the arable layer. Solid chisel tillage ensures the agrophysical state of the soil at the level of plowing.
Chisel loosening improves the structure of the arable layer due to an increase in the number of water resistance aggregates by 2.5–3.4 % in comparison with plowing. The methods of soil tillage in fallow have little effect on the change in the moisture content of the arable and meter layers, which is facilitated by the accumulation and retention of moisture during the maintenance of fallow.
Chisel tillage contributes to an increase in soil protection efficiency of the surface by 5–7 % in comparison with plowing due to the partial preservation of crop residues in the period after harvesting the predecessor to the beginning of summer, improvement of the structure of the upper layer and differentiated redistribution of the root system. The highest level of soil protection efficiency is provided by local chisel loosening.
All non-moldboard tillage in fallow contributed to an increase in the yield of wheat grain in comparison with plowing, especially after solid loosening with a chisel plow at 33-35 cm, where an increase in yield was recorded by 0.36 t/ha (9 %). An increase in the level of profitability by 16–25 % makes it possible to recommend chisel local and solid loosening by 33–35 cm in a fallow when growing winter wheat in the conditions of the Left-Bank Forest-Steppe of Ukraine.
Keywords: winter wheat, chisel loosening, local loosening, efficiency, density, hardness, water resistance, yield.
EFICACIA DEL FENTANILO EN ANESTESIA RAQUÍDEA PARA EL DOLOR AGUDO POSTOPERATORIO
Authors: CÁRDENAS-DELGADO POOL
Published: March 2021

Objetivo: El dolor agudo postoperatorio es un conjunto de percepciones sensoriales, emocionales y mentales desagradables, asociadas a respuestas autonómicas, psicológicas y conductuales, precipitadas por el acto quirúrgico. Objetivo: Generar conocimiento sobre la eficacia del fentanilo en anestesia raquídea para el dolor agudo postoperatorio. Material y métodos: Es un estudio descriptivo de búsqueda bibliografía y se ha realizado en Pubmed, Medline, Scielo, bibliotecas de universidades nacionales e internacionales. Resultados: La asociación de fentanilo a los anestésicos locales para la anestesia subaracnoidea, reduciendo la dosificación de anestésico local y manteniendo el tiempo de su recuperación y así de esta manera mejorar la calidad, la tasa de éxitode pequeñas dosis de los mismos, con ello, la incidencia de complicaciones hemodinámicas. La administración subaracnoidea de anestésicos locales y opioides, provocan eventos adversos, prurito (30 %), náuseas y vómito (25 %), retención urinaria (10-53 %), depresión respiratoria (3 %). Las diferentes dosis de fentanilo asociado a bupivacaína 0.5%, en la raquianestesia disminuyen la intensidad de dolor según EVA, en el trans-operatorio y el manejo del dolor agudo post-operatorio en los diferentes actos quirúrgicos. Conclusión: Se concluye que la asociación de bupivacaína 0,5% más fentanilo, mediante la técnica raquídea, en pacientes intervenidos quirúrgicamente, resulta eficaz, debido a que permite obtener un menor tiempo de latencia para el bloqueo con una duración prolongada, manteniendo una adecuada hemodinamia y estabilidad respiratoria, y también reduciendo el dolor postoperatorio y sus posibles reacciones adversas.
En la puerta del infierno. Proximidad, tensiones y escenarios difíciles en medio del cambio climático
Authors: Canaza-Choque Franklin Américo , Condori-Pilco Lucio Bernardo , Peralta-Cabrera Jaen Paúl , Dávila-Quispe Rudy Oswaldo
Published: March 2021

Land degradation, glacial reduction, extreme natural disasters, scale desertification, floods, forest fires, tropical cyclones, greenhouse gas flows, increase in diseases, water-territorial conflicts, environmental displacement, land-ocean overheating, hunger and international food insecurity, among others. Each and everyone, without a doubt, may have a scenario of excessive damage that could even be related by a main node that causes them, the one that precisely has a powerful social, normative, political-economic leadership and an accurate deep explanation: the depressing impacts of climate change on the global terrain. In these denominators, this brief study is part of a large inventory of delimited topics on environmental problems in which it is sought, predominantly, to describe the upcoming disaster and global climate damage at a time when options show their own exhaustion. Then, everything indicates that we may expect disaster tomorrow.
Ladrões de bicicleta em contexto latino-americano
Authors: Azerêdo Genilda
Published: March 2021

O objetivo deste texto é discutir o filme O banheiro do Papa considerando as diversas linguagens narrativas que o compõem: o discurso histórico, referente à visita de João Paulo II a Melo, cidade uruguaia; o discurso jornalístico, resultante da cobertura da visita do Papa; o diálogo intertextual com o livro de contos de Aldyr Garcia Schlee, O dia em que o Papa foi a Melo, e com o filme de Vittorio De Sica, Ladrões de bicicleta. Embora separados no tempo, na história e na geografia, propomos a discussão do filme latino-americano de modo a ressaltar o diálogo intertextual com Ladrões de bicicleta, chamando a atenção para as ressonâncias de elementos narrativos (personagens, temáticas, conflitos) e questões sociais e éticas entre os dois filmes.
The Concept of Value in the Ethical Thought of Cardinal Karol Wojtyła
Authors: Ślipko Tadeusz
Published: March 2021

The article discusses the concept of value in the ethical thought of Cardinal Karol Wojtyla. The title of this article indicates a twofold delimitation of the problems discussed. The first delimitation is chronological and the theme under consideration is the ethical thought of Cardinal Wojtyla in his pre-papal period.
Puti Russkoy Skholastiki
Authors: Arzhanukhin Vladislav
Published: March 2021

This article outlines the history and development of Russian scholastic thought, whose evolution took place over the course of a century, from the mid-17th to the mid-18th centuries. By the time scholasticism began to spread in Russia, it had already reached its final stages of development in Europe. Of the three major European schools of scholasticism—nominalism, Thomism and “second scholasticism”—the last two were the most popular ones in Russia.
Giuseppe (Joseph) Angiolini, S.J. (1747–1814), Professor of Philosophy at The Polotsk Academy
Authors: Darowski Roman
Published: March 2021

This article discusses the biography, works and philosophical views of Giuseppe Angiolini, an Italian Jesuit working at the Academy of Polotsk at the turn of the 18th and 19th centuries. The whole philosophy represented by Angiolini is in line with Italian Catholic philosophy, which in turn was influenced by the traditional Jesuit Collegium Romanum. The philosophy of Angiolini contains certain Suarezian ideas. In this respect it was influenced by the Jesuit tradition, especially as regards the mental difference between essence and existence, and modalism.
Edith-Stein-Jahrbuch
Authors: Machnacz Jerzy
Published: March 2021

The article reviews the book Edith-Stein-Jahrbuch
Jolanta Koszteyn: Życie a orientacja w rzeczywistości przyrodniczej
Authors: Lenartowicz Piotr
Published: March 2021

The article reviews the book Życie a orientacja w rzeczywistości przyrodniczej [Life and Orientation in Natural Reality], by Jolanta Koszteyn.
DYNAMIC CAPABILITIES DALAM DEMOKRATISASI PELAYANAN PUBLIK DI INDONESIA PADA MASA PANDEMI COVID-19
Authors: Vani Resa Vio
Published: March 2021

Coronavirus disease 2019 is a major disaster for apathy bureaucracy, so the government is required to be able to provide public services in limited interactions. Therefore, the dynamic governance ability shown in this study aims to reveal public expectations in public services during Covid-19 through policy, and to understand the realization of objectives that must be fully understood. As well as how the democratization of public services should be the road to service excellent seen based on the theory of dynamic capabilities that are part of dynamic governance, where able people and agile processes become the benchmark of good implementation of public services, using 3 indicators namely Thinking Ahead, Thinking Again, and Thinking Across. all this is a process towards democratizing public services in Indonesia. This research is a qualitative method with a library study approach. The results stated that Indonesia needs to transform public services using the concept of dynamic capabilities in order to realize the democratization of public services.
A felületvasalás felkeményedésre és feszültségállapot-változásra gyakorolt hatásának elemzése
Authors: Ferencsik Viktória , Varga Gyula
Published: March 2021

Jelen tanulmányban az élettartam-növelő felületszilárdító eljárások közé tartozó vasalás technológiájának vizsgálatával, az azzal kapcsolatos eredmények bemutatásával foglalkozunk. Analizáljuk, hogy a megmunkálás során beállított paraméterek (vasalási erő, előtolás, sebesség, járatszám) milyen hatással vannak a felületi mikro-keménységre, valamint a feszültségállapotra, illetve elemezzük a köztük lévő korrelációs kapcsolatokat. A kísérletek megtervezése és végrehajtása a teljes faktoriális kísérlettervezés módszerével történik.
A körforgásos gazdaság és az ipari szimbiózis megoldások, mint a fenntartható erőforrásgazdálkodás eszközei
Authors: Horváth Ágnes , Bereczk Ádám
Published: March 2021

A fenntartható erőforrás gazdálkodás és a környezeti fenntarthatóság a modernkori vállalati erőforrás gazdálkodás kulcsfontosságú területe. A vállalkozások jelentős része épít stratégiájába ambiciózus erőforrás-optimalizálási célokat, összhangban a vállalati hatékonyság fokozásának és a természeti környezet megőrzésének igényével. Cikkünk fókuszában annak bemutatása áll, hogy az iparágak szimbiózisával jelentős gazdasági és környezeti hasznok érhetők el, ugyanakkor mikro-, mezo- és makroszinten is számos akadály azonosítható. A problémák jelentős részének enyhítésében az ún. facilitátoroknak lehet kiemelt szerepe. Ezen támogató szerepet betöltő szervezetek nagy segítséget jelenthetnek a szimbiózisok kialakításában és menedzselésében a kapcsolódási lehetőségek feltárásán, az információs platformok kiépítésén és hatékony menedzselésén keresztül.
A versenyképesség és a társadalmi innovációk kapcsolata
Authors: Lipták Katalin
Published: March 2021

A tanulmány célja, hogy a korábbi munkáimban feltárt társadalmi innovációk közül olyanokat vizsgáljak meg és ismertessek, amelyek az Észak-magyarországi régióban sikeresnek mondhatók, az innováció által a térség vagy az adott település versenyképességi pozíciói javultak. Az Észak-magyarországi régióban két olyan innovációra esett a választásom, amelyeket kevésbé ismerünk: az Önálló Másság Életminőség Fejlesztő Alapítvány tevékenységét és társadalmi innovációját, valamit a boldvai tökmagolaj előállítását ismeretem. A több évtizede működő társadalmi innovációk más térségekbe való átültetése sokszor nehézségekbe ütközik, pedig egy-egy sikeres innováció átvétele javíthatná az adott térség versenyképességét.
The connection of smart cities approach and social innovation
Authors: Szendi Dóra
Published: March 2021

The enhancing globalization raises new challenges for the cities, like the increasing number of urban population, the rising environmental problems, or the overcrowding of some cities. Nowadays with the widespread of intelligent technologies, more and more cities are creating strategies for making themselves more innovative, and smart. That is why the inequalities among different cities are also rising, as some of them cannot adapt these challenges and turns to a relatively peripheral situation. In their case social innovation can be an adequate solution for solving the problems in a bottom-up way, and foster their development. The aim of this research is to analyse the connection of smart cities with the idea of social innovation, as they both have some similar characteristics.
Systematic literature research on disability-related publications in Hungary from 1959 to the present
Authors: Bihariné Kalászdi Beáta
Published: March 2021

There are many social problems in every human community, some of which are more prominent and others less prominent in public consciousness. One indicator of this is the number of scientific publications. This research aims to analyze the subject of disability through systematic literature research by examining studies and articles published on the theme, to cover the main publishing trends on disability. The author also aims to find a link between her own research topic - social inclusion of people with disabilities in the light of social marketing models - and already published scientific literature.
A Brüsszel IIa rendelet szülői felelősséget és a jogellenes gyermekelvitelt érintő felülvizsgálata
Authors: Tóth Barbara
Published: March 2021

Az Európai Unió működéséről szóló szerződés 81. cikke értelmében az Európai Unió a határokon átnyúló vonatkozású polgári ügyek tekintetében igazságügyi együttműködést alakít ki, és ennek keretében intézkedéseket fogad el. A családok felbomlása esetében ez az együttműködés különösen fontos ahhoz, hogy biztonságos jogi környezet jöjjön létre, hiszen az egyre fokozódó mobilitása következtében egyre több a nemzetközi vonatkozással bíró család. A tanulmány célja, hogy röviden bemutassa az EU családjogi szabályozásának fejlődését, különös tekintettel a már elfogadott, de még hatályba nem lépett Brüsszel IIb. rendeletre, és annak szülői felelősséggel és jogellenes gyermekelvitellel kapcsolatos szabályainak megújult szabályaira.
Experiencia de Educomunicación Como Estrategia en Procesos de Resocialización de Jóvenes Infractores en el CFJ Buen Pastor-Cali
Authors:   Universidad Santiago de Cali, Behar Leiser Olga , Buitrago Parias Sandro Javier ,   Universidad Santiago de Cali, Jordán Tróchez Marisol ,   Universidad Santiago de Cali, Castillo Muñoz Johana ,   Universidad Santiago de Cali
Published: March 2021

El Proyecto fue orientado a la creación de productos periodísticos que generaran cambios en los adolescentes infractores. 90 estudiantes de Comunicación, como talleristas, trabajaron directamente con esta población para realizar esos materiales.
Desarrollo de Una Herramienta para el Prototipado Rápido de Prótesis, Órtesis Y Sistemas de Cirugía Robótica
Authors:   Universidad Santiago de Cali, Serna Ramírez Juan Manuel , Fory Carlos A. ,   Universidad Santiago de Cali
Published: March 2021

El desarrollo de prótesis y órtesis avanzadas y sistemas de cirugía robótica involucra herramientas de desarrollo costosas que limitan la capacidad de los grupos nacionales de investigación de emprender en este campo. Esto repercute negativamente en el costo de adquisición e intervención para los usuarios finales de bajos recursos, quienes pueden verse privados de una mejor calidad de vida. En este artículo se expone la construcción de una herramienta robusta, económica y eficaz para el prototipado rápido de prótesis, órtesis y sistemas de cirugía robótica, la cual pretende en última instancia disminuir los costos de desarrollo de dichos productos, poniéndolos al alcance de un mayor público. Para alcanzar dicho objetivo se utilizaron desarrollos de software y hardware libre y abierto, de fácil construcción y mantenimiento. Además, se realizaron diversas actividades de divulgación, entre ellas talleres de aplicación que demostraron el creciente interés de la comunidad científica y técnica por herramientas de éste tipo.
Null-Labelling: A Generic Approach for Learning in the Presence of Class Noise
Authors: Denham Benjamin , Pears Russel , Naeem M. Asif
Published: March 2021

Datasets containing class noise present significant challenges to accurate classification, thus requiring classifiers that can refuse to classify noisy instances. We demonstrate the inability of the popular confidence-thresholding rejection method to learn from relationships between input features and not-at-random class noise. To take advantage of these relationships, we propose a novel null-labelling scheme based on iterative re-training with relabelled datasets that uses a classifier to learn to reject instances that are likely to be misclassified. We demonstrate the ability of null-labelling to achieve a significantly better tradeoff between classification error and coverage than the confidence-thresholding method. Models generated by the null-labelling scheme have the added advantage of interpretability, in that they are able to identify features correlated with class noise. We also unify prior theories for combining and evaluating sets of rejecting classifiers.
Hybrid Architecture based on RNN-SVM for Multilingual Handwriting Recognition using Beta-elliptic and CNN models
Authors: Hamdi Yahia , Boubaker Houcine , Rabhi Besma , Ouarda Wael , Alimi Adel
Published: March 2021

Currently, deep learning approaches have proven successful in the areas of handwriting recognition. Despite this, research in this field is still needed, especially in the context of multilingual online handwriting recognition scripts by adopting new network architectures and combining relevant parametric models. In this paper, we propose a multi-stage deep learning-based algorithm for multilingual online handwriting recognition based on hybrid deep Bidirectional Long Short Term Memory (DBLSTM) and SVM networks. The main contributions of our work lie in partly in the composition of a new multi-stage architecture of deep learning networks associated with effective feature vectors that integrate dynamic and visual characteristics. First, the proposed system proceeds by pretreating the acquired script and delimiting its Segments of Online Handwriting Trajectories (SOHTs). Second, two types of feature vectors combining BetaElliptic Model (BEM) and Convolutional Neural Network (CNN) are extracted for each SOHT in order to fuzzy classify them into k sub-groups using DBLSTM neural networks for both online and offline branches trained using an unsupervised fuzzy k-means algorithm. Finally, we combine the trained models to strengthen the discrimination power of the global system using SVM engine. Extensive experiments on three data sets were conducted to validate the performance of the proposed method. The experimental results show the effectiveness and complementarities of the individual modules and the advantage of their fusion.
Analytic Solutions for Full Operating Range Single-Side ZVS Modulation of Dual Active Bridge Converters
Authors: Saegmueller Michael , Hackl Christoph , Witzmann Rolf , Richter Rene
Published: March 2021

This paper presents analytic solutions for an optimal modulation scheme featuring low switching losses for a bidirec- tional single-phase dual active bridge (DAB) DC-DC converter used for charging high-voltage batteries of electric vehicles. The proposed modulation scheme facilitates zero-voltage switching (ZVS) for either the primary- or secondary-side full bridge of the DAB converter throughout the whole operating range while maintaining low conduction losses. The expressions are derived based on the current required for an ideal ZVS transition and enable for a direct computation of the respective optimal modulation parameters.
Use of battery swapping for improving environmental balance and price-performance ratio of electric vehicles
Authors: Schmidt Steffen
Published: March 2021

There
is a simple concept that can significantly improve the environmental
balance of battery electric vehicles and at the same time avoid the
known disadvantages of these vehicles (short range, long charging
times, high acquisition costs) without having to wait for further
developed batteries or a higher proportion of green electricity. For
this purpose, the vehicles are equipped with built-in batteries for
short and medium distances and are therefore sufficient for the
majority of daily journeys. For long-distance journeys, the driver
borrows charged additional battery packs at swapping stations, which
are automatically inserted into a standardised exchange slot within a
few minutes. This
paper focuses on the improvements in electric vehicles that can be
achieved by combining built-in and exchangeable
battery technique and also on the practical feasibility of the
concept. It is shown that the battery capacity required for the
entire vehicle fleet can be significantly reduced. The resulting
ecological advantages on the one hand and grid-stabilising effects of
a nationwide network of swapping stations on the other hand, support
the transition to environmentally sustainable mobility. The
characteristics of the concept presented are advantageous for its
practical implementation. The acceptance by customers and
manufacturers can thus be improved compared to previous battery
swapping systems. The loan
system for the exchange batteries may be designed conveniently
and
information security as well as data protection will be strictly
complied.
DQ-Frame Admittance Estimation of Three-Phase Converters with a Wide Range of Operating Points
Authors: Gong Hong , wang xiongfei , Yang Dongsheng
Published: March 2021

The dq-frame admittance of closed-loop controlled three-phase converters is a linearized model that is dependent on the operating points of the system. Yet, it is impractical to measure the converter admittance at all operating points. This paper, thus, proposes an approach to estimating the dq-frame admittance of three-phase converters at a wide range of operating points. The method applies multidimensional interpolation to a given set of admittance data, which is measured from the pre-defined operating points. The accuracy of interpolation is then evaluated by using the posterior error estimation method. The number of pre-defined operating points is next adjusted to find a good compromise between the accuracy and efficiency of the approach. Simulations and experimental results verify the effectiveness of the approach.
Sentimiento y usos de la razón
Authors: Petrella Daniele
Published: March 2021

El presente artículo muestra cómo el ensayo kantiano ¿Qué significa orientarse en el pensamiento? anticipa los lineamientos de una estética crítica, tal como Kant la define en su forma acabada en la Crítica de la facultad de juzgar. Dicho ensayo fue escrito por Kant a raíz de la polémica suscitada por Jacobi sobre el presunto spinozismo que caracteriza la filosofía de Lessing. El objetivo del artículo es comprobar que con la noción de “sentimiento” Kant hace referencia a un posible orden de la experiencia que intuimos o percibimos. Entendido en esta perspectiva, el sentimiento se configura como el principio subjetivo de la imaginación que nos hace sentir la complejidad y riqueza de la experiencia, susceptible de ser comprendida en términos de un orden interpretativo posible, es decir, no necesario y sujeto a eventuales transformaciones.
ЗАСТОСУВАННЯ ФІНАНСОВО-ЕКОНОМІЧНИХ МЕТОДІВ ДЛЯ ВИБОРУ ПРІОРИТЕТНИХ НАПРЯМІВ АГРАРНОГО СЕКТОРУ РЕГІОНУ ЯК ОСНОВА СТРАТЕГІЧНОГО ПЛАНУВАННЯ ТА ПРОГНОЗУВАННЯ
Authors: Білецька Н. В. , Транченко Л. В. , Транченко О. М. , Лопатюк Р. І.
Published: March 2021

В умовах інтеграції України до світового економічного простору аграрний сектор є однією з пріоритетних та стратегічно важливих галузей національної економіки. Тому метою нашого дослідження є вивчення, аналіз та розробка фінансово-економічних методів для вибору пріоритетних напрямів аграрного сектору регіону як основи стратегічного планування та прогнозування, а також вдосконалення результатів за допомогою кількісних характеристик альтернативних сценаріїв. У статті аналізуються механізм та особли-вості кількісних характеристик альтернативних сценаріїв на рівні аналізу, що допомагає керівнику, що прий-має рішення, візуалізувати профіль альтернативи сценарію у певний момент часу часового проміжку, порів-няти між собою часові перерізи альтернатив одного або декількох сценаріїв у визначений момент часу. В ре-зультаті дослідження виявлено, що кожний фактор, опрацьований за запропонованою нами методикою, опи-сується певним інтегральним показником, до складу якого входять згруповані та впорядковані за важливістю для даного фактора лінгвістичні змінні у вигляді вербальних описів можливих варіантів розвитку подій. Таким чином практичне значення досліджень дає змогу формалізувати нечіткі уявлення щодо розвитку досліджува-ного соціально-економічного процесу в межах певного сценарію, побудованого на основі тенденцій, виявлених експертами, та чинники, які впливають на розвиток соціально-економічної системи регіону і які необхідно розглядати не лише з точки зору загальної характеристики окремого фактора, а й в контексті конкретної системи та її цільового спрямування. Визначено, що для короткострокового прогнозування, особливо в умовах швидкої, стрибкоподібної зміни ситуації у національній економіці, прогнозування інвестиційного забезпечення регіональної економіки оптимальніше виконувати на основі прогнозу валового регіонального продукту, оскільки саме він є результуючим показником, що характеризує галузеву структуру та динаміку регіональної економіки, узагальнюючи вплив всіх чинників зростання.
EXPERIMENTAL STUDY ON THE MECHANICAL BEHAVIOUR OF FIRED SAND-CLAY AND GLASS POWDER-CLAY BRICKS
Authors: Adediran Adeolu , Akinwande Abayomi , Balogun Oluwatosin , Adesina Olanrewaju , Olayanju Adeniyi
Published: March 2021

Mechanical behaviour of fired bricks containing varied amount of fine sand (FS) and waste glass powder (GP) was investigated. FS and GP were added to bricks at varied amount of 0, 5, 10, 15, 20, 25, 30, 35 and 40 wt. %. Firing was done at 1200 ⁰C and samples produced were evaluated for compressive and flexural strengths while microstructural analyses of 25 wt. % FS and GP-clay bricks were examined. Results showed that compressive strength was highest at 30 wt. % GP for GP-bricks while for FS-clay bricks, compressive strength rose to 35 and 40 wt. % FS addition.  Flexural strength for GP-clay and FS-clay bricks peaked at 30 wt. % GP (3.63 MPa) and 40 wt % FS (2.45) respectively. Flexural modulus increased progressively and exponentially as FS and GP proportion increased. Workdone in resisting deformation and deflection during bending reduced with increased amount of both additives. Flexural strain was inversely related to load and stiffness. In conclusion, addition of GP and FS in increasing amount resulted in improved mechanical properties in the bricks. Also, increased proportion of GP and FS was found to improve response to loading in fired bricks.
EFFECT OF DIFFERENT STRAIN ROUTES ON MECHANICAL PROPERTIES AND MICROSTRUCTURE OF COPPER
Authors: Hoseini Mohammad Javad , Ghayour Hamid , Salemi Golazani Ali , Kasiri Masud , Ebrahimzadeh Iman
Published: March 2021

In the current paper, the role of change in strain routes was investigated, along with the cold rolling of copper metal. Four different strain routes including, (a) unidirectional rolling, (b) reverse rolling, (C) two-stage cross-rolling, and (d) multi-stage cross-rolling, were utilized to investigate the effect of strain routes change on microstructure, texture evolution, and anisotropy. Tensile strength in the unidirectional rolling sample compared to the cross-rolling sample decreased in the direction of initial rolling from  364 Mpa to 340 Mpa, in the direction of 45˚ to the initial rolling from  359 Mpa to  347 Mpa, and in the direction of perpendicular to the initial rolling from  371 Mpa to 360 Mpa. Texture intensity also decreased from 1413 in the unidirectional rolling sample to 992 in the cross-rolled sample. The results demonstrated that by rolling in different routes, the cross-rolling has led to a more homogeneous microstructure, less anisotropy, and weaker texture.
HYDROMETALLURGICAL NICKEL AND COBALT PRODUCTION FROM LATERITIC ORES: OPTIMIZATION AND COMPARISON OF ATMOSPHERIC PRESSURE LEACHING AND PUG-ROAST-LEACHING PROCESSES
Authors: Baslayici Serkan , Coban Ozan , Bugdayci Mehmet , Acma Mahmut Ercan
Published: March 2021

Corresponding to the technological developments, production and consumption of nickel have increased greatly over time due to its unique mechanical and chemical properties. Therefore, the production of nickel will always keep its importance. The availability of laterite ores, which are oxide type ores, is 86% of the nickel reserves on the Earth, and the processes used in the production of nickel from sulfide type ores have negative environmental effects. Therefore, recovery of nickel from lateritic ores has become increasingly important in recent years. In this study, the aim was to determine the optimum parameters of nickel and cobalt production from limonite type lateritic nickel ores, which were taken from Manisa Caldag region of Turkey, using atmospheric pressure sulfuric acid leaching and pug-roast-leach process. When the results obtained in these processes were compared, it was found that the Ni leaching efficiency is nearly 8% higher and iron leaching efficiency (contamination) is nearly 4% lower in the pug-roast-leach process. Furthermore, the pug-roast-leach process was completed in 33% lower time compared to the atmospheric pressure sulfuric acid leaching process.
SLURRY EROSION BEHAVIORS OF COPPER ALLOY BARREL OF MEASURE-MENT WHILE DRILLING
Authors: Huang Kang Jin , Wei Kun Xia , Zhang Ke , Wei Wei , Du Qing Bo , Alexandrov Igor V.
Published: March 2021

Measurement while drilling (MWD) has been widely used in petroleum drilling engineering because it can realize borehole trajectory monitoring and improve the drilling speed. However, the slurry erosion will deteriorate and shorten the life of MWD. A user-defined function (UDF) code was developed to calculate the particle properties (particle impact velocity, particle impact angle and particle impact number) and erosion depth to understand the erosion process. The results show that the Realizable κ-ε model can accurately predict the erosion profile and the erosion depth is consistent with the experiment results. Furthermore, high pressure will aggravate surface damage and expand the area of slurry erosion. It has been demonstrated that computational fluid dynamics (CFD) and experimental approach can be used to identify and explain the erosion mechanisms in different regions where the surface morphologies reveal four erosion patterns, namely, micro-cutting, cracks, pits and plastic deformation.
Some Results on Statistical Hypersurfaces of Sasakian Statistical Manifolds and Holomorphic Statistical Manifolds
Authors: Wu Feng , Jıang Yan , Zhang Liang
Published: March 2021

In this paper, we study the statistical immersion of codimension one from a Sasakian statistical manifold of constant φ− curvature to a holomorphic statistical manifold of constant holomorphic curvature and its converse. We prove that in both cases the constant φ− curvature equals to one and the constant holomorphic curvature must be zero. Moreover, we construct several examples of statistical manifolds, Sasakian statistical manifolds and holomorphic statistical manifolds of constant holomorphic curvature zero.
Critiquing Collaborative Language Learning: A Qualitative Study of Teachers’ Perceptions
Authors: Dr. Liaqat Iqbal  , Muhammad Sheeraz
Published: March 2021

Collaborative language learning, followed as a language teaching and learning methodology in many countries, is often critiqued with mixed arguments. To some, while keeping in view its social aspect where learners work on common projects intending to partake in collective decision making and intellectual engagement, collaborative language learning is more productive than the traditional way of teaching and learning a second/foreign language. To others, because of different requirements for its successful implementation, collaborative language learning becomes a difficult practice where the cost exceeds the benefits. To know the problems and prospects of collaborative language learning, in the present study, data were collected through semi-structured interviews from teachers of both public and private sector schools of district Mardan. Through purposive sampling, data were collected from 40 teachers (20 each from public and private sector schools). The findings reveal that besides many positive aspects, there are some negative aspects of collaborative learning where the prominent one is the loss of an individual's authority and creativity, promotion of totalitarian approach, and overlooking of the shy students. It can be a useful tool for language education provided some requirements including teacher training, availability of proper space, and classroom size, etc. are tackled properly.
Probability of a High-Speed Military Aircraft Falling at a Nuclear Power Plant and Setting of Design Loads on Building Structures
Authors: Birbraer Adolf N. , Kostrov George D.
Published: March 2021

The article is devoted to issues related to the probabilistic justification of the safety of nuclear power plants (NPP) when a high-speed military aircraft falls. The random parameters are the recurrence of falls and the direction of the aircraft's trajectory. The conservative value of the recurrence of falls, given in the IAEA documents, was used, which ensures a high degree of NPP safety. The aircraft approach is assumed to be equally probable from either side. The trajectory slope is specified taking into account the IAEA documents and statistics of aviation accidents.

The aircraft impact load is applied to one of the structures, therefore the impact probability must be determined independently for each of them. It is proportional to the equivalent area of the building structure, depending on its size, shape, position in space and in relation to other structures. Expressions are given for the equivalent areas of structures of various shapes, typical for NPP. It is shown that if the aircraft crash is unintentional (accident), then with the usual dimensions of structures, the probability of an impact in them is less than the value, starting from which, according to Russian standards, it must be taken into account in the design basis of the NPP, i.e. it can be ignored. Dependencies are given for calculating the probability of an aircraft strike in the case of a deliberately organized accident (terrorist attack), in which the aircraft will surely fall on the territory of “Nuclear Island” of the NPP.

The procedure for setting the design loads on the building structures of a NPP in the case of a deliberate aircraft fall based on the allowed probability of their realization is described. It is shown that this method of setting the loads makes it possible to substantiate their significant reduction, which leads to a reduction in the cost of the NPP while guaranteeing its safety. A probabilistic assessment of structures safety of existing NPP in the event of an aircraft impact is discussed.
Research and Assessment of the Seismic Risk of Strong and Destroying Earthquakes on the Territory of Tajikistan
Authors: Sanginov Abdusamad M.
Published: March 2021

The area of Tajikistan is 143.1 thousand km2, while about 93% of its territory is occupied by mountains, the maximum heights of which reach more than 7000 m above sea level. The rest of the country (7%) is plains and valleys with heights from 300 to 1000 m above sea level. Such a significant range of heights is explained by the location of the study area in the junction zone of the Tien Shan fold system and the Alpine-Himalayan belt and leads to a wide variety of geological, hydrogeological, landscape-climatic and seismic conditions, analysis of the consequences of destructive earthquakes is of great importance for solving scientific and practical problems in the field of seismology, as well as problems of earthquake-resistant construction. The analysis of consequences of destructive earthquakes is important for solving scientific and practical tasks in the field of seismology and problems of earthquake engineering. One of the main sources of seismic resistance assessment of buildings and structures, along with theoretical and experimental studies, is engineering analysis of the consequences of strong earthquakes. This article deals with the effects of earthquakes on the earth's surface. The example of the following devastating earthquakes that occurred in Tajikistan, the impact of these seismic events on various types of residential buildings built from local materials is considered, and the main reasons for the observed nature of deformations and destruction are discussed.
Clinical implications of the genus Mycoplasma
Authors: Gómez Rufo David , García Sánchez Enrique , García Sánchez José Elías , García Moro María ,   Departamento de Ciencias Biomédicas. Facultad de Medicina. Universidad de Salamanca. Spain
Published: March 2021

Within Mycoplasma genus, M. pneumoniae, M. genitalium, M. hominis or U. urealyticum are the main species that have been traditionally linked to infectious processes. However, there are many other species involved in these conditions and that are, frequently, unfamiliar to healthcare professionals. The aim of this review is to identify all Mycoplasma genus species that have been isolated in human beings and to determine their involvement in infectious pathology.
The Usefulness of Pretreatment MR-Based Radiomics on Early Response of Neoadjuvant Chemotherapy in Patients With Locally Advanced Nasopharyngeal Carcinoma
Authors: Yongfeng Piao , Chuner Jiang , Lei Wang , Fengqin Yan , Zhimin Ye , Zhenfu Fu , Haitao Jiang , Yangming Jiang , Fangzheng Wang
Published: March 2021

The aim of this study was to explore the predictive role of pretreatment MRI-based radiomics on early response of neoadjuvant chemotherapy (NAC) in locoregionally advanced nasopharyngeal carcinoma (NPC) patients. Between January 2016 and December 2016, a total of 108 newly diagnosed
NPC patients who were hospitalized in the Cancer Hospital of the University of Chinese Academy of Sciences were reviewed. All patients had complete data of enhanced MR of nasopharynx before treatment, and then received two to three cycles of TP-based NAC. After 2 cycles of NAC, enhanced MR
of nasopharynx was conducted again. Compared with the enhanced MR images before treatment, the response after NAC was evaluated. According to the evaluation criteria of RECIST1.1, 108 cases were divided into two groups: 52 cases for the NAC-sensitive group and 56 cases for the NAC-resistance
group. ITK-SNAP software was used to manually sketch and segment the region of interest (ROI) of nasopharyngeal tumor on the MR enhanced T1WI sequence image. The parameters were analyzed and extracted by using AI Kit software. ANOVA/MW test, correlation analysis, and LASSO were used to select
texture features. We used multivariate logistic regressions to select texture features and establish a predictive model. The ROC curve was used to evaluate the efficiency of the predictive model. A total of 396 texture features were obtained by using feature calculation. After all features
were screened, we selected two features including ClusterShade_angle135_offset4 and Correlation_AllDirection_offshe1_SD. Based on these two features, we established a predictive model by using multivariate logistic regression. The AUC of the two features used alone (0.804, 95% CI=0.6020.932;
0.762, 95% CI=0.5560.905) was smaller than the combination of these two features (0.905, 95% CI=0.7240.984, p=0.0005). Moreover, the sensitivity values of the two features used alone and the combined use were 92.9%, 51.7%, and 85.7%, respectively, while the specificity values were 66.7%,
91.7%, and 83.3%, respectively, in the early response of NAC for NPC. The predictive model based on MRI-enhanced sequence imaging could distinguish the sensitivity and resistance to NAC and provide new biomarkers for the early prediction of the curative effect in NPC patients.
Erratum: Procaine Inhibits the Proliferation and Migration of Colon Cancer Cells Through Inactivation of the ERK/MAPK/FAK Pathways by Regulation of RhoA
Authors: Li Chang , Gao Shuohui , Li Xiaoping , Li Chang , Ma Lianjun
Published: March 2021

Originally published in Volume 26, No. 2, pages 209–217, 2018 (doi:https://doi.org/10.3727/096504017X14944585873622)
Colon cancer is one of the most lethal varieties of cancer. Chemotherapy remains as one of the principal treatment approaches for colon cancer. The anticancer activity of procaine (PCA), which is a local anesthetic drug, has been explored in different studies. In our study, we aimed to explore the anticancer effect of PCA on colon cancer and its underlying mechanism. The results showed that PCA significantly inhibited cell viability, increased the percentage of apoptotic cells, and decreased the expression level of RhoA in HCT116 cells in a dose-dependent manner (p < 0.05 or p < 0.01). Moreover, PCA increased the proportion of HCT116 cells in the G1 phase as well as downregulated cyclin D1 and cyclin E expressions (p < 0.05). In addition, we found that PCA remarkably inhibited cell migration in HCT116 cells (p < 0.01). However, all these effects of PCA on cell proliferation, apoptosis, and migration were significantly reversed by PCA + pc-RhoA (p < 0.05 or p < 0.01). PCA also significantly decreased the levels of p-ERK, p-p38MAPK, and p-FAK, but PCA + pc-RhoA rescued these effects. Furthermore, the ERK inhibitor (PD098059), p38MAPK inhibitor (SB203580), and FAK inhibitor (Y15) reversed these results. These data indicate that PCA inhibited cell proliferation and migration but promoted apoptosis as well as inactivated the ERK/MAPK/FAK pathways by regulation of RhoA in HCT116 cells.
Apsīšu Jēkabs un Rūdolfs Blaumanis: salīdzināmie aspekti
Authors: Kalnačs Benedikts
Published: March 2021

The topic of the paper reflects an interest in potential sources of Rūdolfs Blaumanis’s literary output. Blaumanis himself did confirm that he considered Apsīšu Jēkabs among the most important Latvian writers of the 19th century. Both authors focused their attention on the historical period later labelled the age of transition. In this context, several important aspects are discussed. The paper pays attention to the infringement of moral laws in society and the reflection of this trend in literary texts. An important topic is the stratification of society, including the relations among the nobility, peasants, and servants, and their changing patterns. The role of money, including the rise of calculated marriages, is also an object of discussion, as well as the issues of upbringing in families and schools. In this paper, aesthetic parallels are discussed within the context of the impact of popular literature on both writers. Both of them often used exaggerated situations in order to raise the appeal of their texts to their respective audiences. The principles of the creation of comic effects are also scrutinised. One of the issues discussed in the paper is that of intercultural relations. Whereas Apsīšu Jēkabs points toward the juxtaposition of Latvian and Baltic German literary cultures, Blaumanis is much more open to their coexistence and extracts positive aspects out of the position among different cultures as reflected in the wide range of his literary sources. However, it is important to point to the impact of Latvian 19th-century literature on the development of Blaumanis’s ideas and his creative potential.
Kaža Biņķa „Vējgrābslis” un Aleksandra Čaka „Pilsētas zēns” kā lietuviešu un latviešu modernisma programmas
Authors: Butkus Vigmants
Published: March 2021

The article analyses two poems: a poem “A Giddy-Headed” (Vėjavaikis, 1923) by Kazys Binkis (1893–1942) and a poem “A City Brat” (Pilsētas zēns, 1929) by Aleksandrs Čaks (true name Aleksandrs Čadarainis, 1901–1950). The analysis is based on a kind of poetics that could be called micropoetics. Both poems are treated as the modernist programmes of unique Lithuanian and Latvian literatures compared in all essential aspects: 1) conception of man and world; 2) relation to earlier literary trends; 3) genre, expressive means, etc. “A Giddy-Headed” expresses a more abstract, more symbolic, more passionate variant of modernism closer to futurism. “A City Brat” conveys a more realistic, more ironic instance of modernism. Lithuanian modernist poetry, represented by “A Giddy-Headed”, is much closer to the traditional rustic and ethnic culture. In comparison with Latvian poetry, this poetry lacks a stronger urbanistic paradigm, nuanced expression, and a more self-critical attitude.