bluuebunny/crossref_metadata_2025 huggingface dataset:
Novel control strategy for non-minimum-phase unstable second order systems: generalised predictor based approach
Authors: Bhaskaran Anil , Ediga Chandramohan Goud , Ambati Seshagiri Rao
Published: April 2021

A control structure based on generalized predictor is proposed to control non-minimum phase unstable second order processes with time delay. The scheme contains a predictor structure and a direct synthesis method based primary controller for servo tracking. The predictor structure consists of two filters acting on input and current output which are designed to provide noise attenuation and disturbance rejection. A set-point filter minimises the overshoot caused by the introduction of additional zeros of the controller in the overall closed loop transfer function so as to smooth the tracking performance. Different second order unstable time delay systems are considered and Integral Absolute Error (IAE) and Total Variation (TV) measures are used for comparing the performances quantitatively. The method is implemented experimentally on an inverted pendulum. The proposed predictive strategy is found to provide enhanced control performances in comparison to the existing literature methods.
CTU findings of duplex kidney in kidney: A rare duplicated renal malformation
Authors: Xie Nanai , Huang Xu , Zhou Jie , Zhang Heng , Ma Wanling
Published: April 2021

Duplex kidney is a common congenital malformation appeared as duplication of pelvis and ureter. However, renal duplication within sinus renalis is an extremely rare variation of the renal collecting system. In this study, we report a case of an asymptomatic kidney disease in a 33-year-old man, who demonstrates abnormal echo of renal sinus anomaly discovered incidentally in ultrasound examination. Computed tomography urography (CTU) exhibited the other small duplex kidney located in renal sinus. In the excretory phase images, the contrast medium within its small renal pelvis could be seen to flow into the right major renal calices. This case exhibited a very rare anatomical variation of duplicated renal malformation.
An effective thermal conductivity and thermomechanical homogenization scheme for a multiscale Nb3Sn filaments
Authors: Zhao Xiaoyu , Wang Guannan , Chen Qiang , Duan Libin , Tu Wenqiong
Published: April 2021

A comprehensive study of the multiscale homogenized thermal conductivities and thermomechanical properties is conducted towards the filament groups of European Advanced Superconductors (EAS) strand via the recently proposed Multiphysics Locally Exact Homogenization Theory (LEHT). The filament groups have a distinctive two-level hierarchical microstructure with a repeating pattern perpendicular to the axial direction of Nb3Sn filament. The Nb3Sn filaments are processed in a very high temperature between 600 and 700°C, while its operation temperature is extremely low, −269°C. Meanwhile, Nb3Sn may experience high heat flux due to low resistivity of Nb3Sn in the normal state. The intrinsic hierarchical microstructure of Nb3Sn filament groups and Multiphysics loading conditions make LEHT an ideal candidate to conduct the homogenized thermal conductivities and thermomechanical analysis. First, a comparison with a finite element analysis is conducted to validate effectiveness of Multiphysics LEHT and good agreement is obtained for the homogenized thermal conductivities and mechanical and thermal expansion properties. Then, the Multiphysics LEHT is applied to systematically investigate the effects of volume fraction and temperature on homogenized thermal conductivities and thermomechanical properties of Nb3Sn filaments at the microscale and mesoscale. Those homogenized properties provide a full picture for researchers or engineers to understand the Nb3Sn homogenized properties and will further facilitate the material design and application.
Semiotics East and West: an aesthetic-semiotic approach to translating the iconicity of classical Chinese poetry
Authors: Zhao Guangxu
Published: April 2021

For some Western translators before the twentieth century, domestication was their strategy to translate the classical Chinese poetry into English. But the consequence of this strategy was the sacrifice of the ideogrammatic nature of these poems. The translators in the twentieth century, especially the Imagist poets and translators in the 1930s, overcame the problems of their predecessors by developing their translation theory and practice in ways that are close to those of many contemporary semiotic translators. But both Imagist translators and contemporary semiotic translators have the problem of indifference to the feeling of the original in their translations.

For the problem of translating the classical Chinese poetry by the Westerners before the twentieth century and the Imagist poets and translators of the twentieth century, see Zhao and Flotow 2018.

This paper attempts to set up an aesthetic-semiotic approach to the translation of the iconicity of classical Chinese poetry on the basis of the examination of both Eastern and Western translation studies.
Die „drohende Gefahr“ als Schlüsselbegriff einer Sekuritisierung des Rechts
Authors: Kretschmann Andrea , Legnaro Aldo
Published: April 2021

Die Vorstellung von drohenden Gefahren im Sinne bloß vermutbarer, zukünftiger Gefahren noch diffusen Charakters wird im Polizeirecht und der polizeilichen Praxis immer verbreiteter. Solche Gefahren stellen zuerst einmal eine Imagination des Gesetzgebers, in der Praxis dann aber auch der Sicherheitsbehörden dar und sind in ihrer (rechtlich) begrifflichen Vagheit besonders geeignet, exekutive Ermächtigungen durchzusetzen, die eine neuartige polizeiliche Verfügungsmacht über Zeit und Raum und damit einhergehend eine Flexibilisierung von Kontrolle beinhalten. Das bringt im Ergebnis eine Sekuritisierung des Rechts mit sich, wie wir exemplarisch am Konzept des Gefährders, am Konzept der drohenden Gefahr in den neuen Polizeigesetzen und den Methoden despredictive policingzeigen, die alle in einer Vorstellung von abstrahierten bzw. unkonkret drohenden Gefahren ihren gemeinsamen Fluchtpunkt haben und diese entweder personalisieren, generalisieren oder lokalisieren. Das eröffnet einem „governing through crime“ (Simon) neuartige Möglichkeiten und lässt sich als Zeichen einer weitgefassten präventiven Sekuritisierung lesen, die nicht ohne totalitäre Gefahren ist.
Need for Speed: Die neue Beschleunigungsfreude im Strafverfahren am Beispiel der Untersuchungshaft
Authors: Morgenstern Christine
Published: April 2021

Sowohl nach nationalem wie nach europäischem Recht gelten für die Untersuchungshaft als ultima ratio der Verfahrenssicherung strenge Anordnungsvoraussetzungen, die von den Gerichten in einer komplexen Prüfstruktur festzustellen sind. Ebenso finden sich normative Verpflichtungen, Strafverfahren in Haftsachen zügig und gegenüber anderen Verfahren beschleunigt einer Klärung zuzuführen. Der Beitrag erhellt, dass in der Praxis zunehmend das eine Prinzip gegen das andere ausgespielt wird und das Bedürfnis, Verfahren schnellstmöglich zu erledigen, die Notwendigkeit einer gründlichen Prüfung der Haftvoraussetzungen überlagert. Augenfällig ist dies für Verfahren eher leichter Kriminalität gegen sozial marginalisierte ausländische Tatverdächtige. Dieser länderübergreifende Befund wird anhand von Ergebnissen einer vergleichenden empirischen Studie zur Untersuchungshaftvermeidung in sieben europäischen Staaten dargestellt. Die beobachtete neue Beschleunigungsfreude lässt sich Erscheinungen der Ökonomisierung und Marginalisierung des Rechts zuordnen, die durch gesetzlich verankerte oder kriminalpolitisch geforderte Möglichkeiten, Strafverfahren zu „effektivieren“, begünstigt werden.
The impact of crude glycerol from biodiesel production and its trace element content on biomethane production in a batch experiment: modelling as a step towards impartial routine comparison of results
Authors: Kolbl Repinc Sabina , Deutsch Leon , Savić Dragiša , Steinman Franci , Danilović Bojana , Stres Blaž
Published: April 2021

In this study, crude glycerol from the biodiesel industry was tested as a co-substrate in biogas production. To investigate the influence of crude glycerol and the underlying trace element (TE) content on the efficiency of biomethane production, a batch experiment using Automatic Methane Potential Test System (AMPTS II) was carried out. The single addition of crude glycerol significantly contributed only to the total content of K (14.4%), Si (17.3%), and P (11.6%), whereas the contributions of other metals were within the range of other substrates. The addition of crude glycerol increased biomethane production, however, its utilization beyond 1% of total volume resulted in prolonged lag phase and final cessation of biomethane production. The negative effects of inorganic salts present in crude glycerol were reflected in progressively diminishing parts of glycerol and methanol being utilized in its anaerobic digestion, posing serious problems for daily routine use. A nonlinear least square regression analysis was performed to fit the Gompertz, Logistic, Transfer, and Richards models to biomethane production. The most suitable model was the Richards model, exhibiting the best fit to the experimental curves for complex substrates. Glycerol fractions remaining after biodiesel production have to be pre-tested for their negative effects on the content of TEs and inorganic salts, lag phase in biogas production, before they are used as co-substrates in biogas production phase.
Tumor growth rate in pancreatic neuroendocrine tumor patients undergoing PRRT with 177Lu-DOTATATE
Authors: Pettersson Olof Joakim , Fröss-Baron Katarzyna , Crona Joakim , Sundin Anders
Published: April 2021

Background

Monitoring of pancreatic neuroendocrine tumors (PanNET) undergoing peptide receptor radionuclide therapy (PRRT) with 177Lu-DOTATATE depends on changes in tumor size, which often occur late. Tumor growth rate (TGR) allows for quantitative assessment of the tumor kinetics expressed as %/month. We explored how TGR changes before and during/after PRRT and evaluated TGR as a biomarker for progression-free survival (PFS).

Methods

In PanNET patients undergoing PRRT with 177Lu-DOTATATE from 2006 to 2018, contrast-enhanced CT or MRI was performed before and during the therapy. Patients with at least one hypervascular liver metastasis were included. TGR was calculated for the period preceding treatment and for two intervals during/after PRRT. Cox regression was used for the survival analysis.

Results

Sixty-seven patients (43 men, 24 women), median age 60 years (range 29–77), median Ki-67 10% (range 1–30) were included. TGR before baseline (n = 57) (TGR0) was mean (s.d.) 6.0%/month (s.d. = 8.7). TGR at 4.5 months (n = 56) (TGR4) from baseline was −3.4 (s.d. = 4.2) %/month. TGR at 9.9 months (n = 57) (TGR10) from baseline was −3.0 (s.d. = 2.9) %/month. TGR4 and TGR10 were lower than TGR0 (TGR4 vs TGR0, P < 0.001 and TGR10 vs TGR0, P < 0.001). In the survival analysis, patients with TGR10 ≥ 0.5%/month (vs <0.5%/month) had shorter PFS (median = 16.0 months vs 31.5 months, hazard ratio 2.82; 95% CI 1.05–7.57, P = 0.040).

Discussion

TGR in PanNET patients decreases considerably during PRRT with 177Lu-DOTATATE. TGR may be useful as a biomarker to identify patients with the shortest PFS.
Spectrum of thyroid dysfunction and dementia: a dose–response meta-analysis of 344,248 individuals from cohort studies
Authors: Tang Xingyao , Song Zhi-Hui , Wang Dawei , Yang Jinkui , Augusto Cardoso Marly , Zhou Jian-Bo , Simó Rafael
Published: April 2021

Thyroid hormone, as a modifiable risk factor for dementia, promotes neurocognitive function and regulates metabolic processes. Various studies have defined different thyroid-stimulating hormone cutoffs, but the safest thyroid-stimulating hormone concentration was absent. A dose–response meta-analysis describing the overall functional relation and identifying exposure intervals associated with a higher or lower disease risk is thus desirable. Therefore, our current analysis was conducted to understand the influence of thyroid dysfunction on dementia risk. We searched PubMed, Embase, and Web of Science before May 1, 2020 for human studies published in English. Studies were considered for inclusion if they used a cohort study design to measure the risk of dementia in different thyroid function status groups, diagnosed thyroid functional status and all-cause dementia, included participants aged >18 years, and provided quantitative measures of data. The analysis contained 17 articles with 344,248 individuals with a 7.8-year mean follow-up. Ten studies with 329,287 participants indicated that only subclinical hyperthyroidism was associated with an increased risk of dementia. In contrast, subclinical hypothyroidism, clinical hyperthyroidism, and clinical hypothyroidism did not affect dementia. In the dose–response meta-analysis with 46,417 samples from 11 studies, the association of thyroid-stimulating hormone with the risk of dementia exhibited a U-shaped curve. Our study indicated that subclinical hyperthyroidism was associated with the risk of dementia and the thyroid-stimulating hormone concentration at around 1.55–1.60 mU/L as the optimum range for the risk of dementia.
Manufacturing and Processing of Carbon Nanotubes for H2 Storage
Authors: Namitha R. , Radhika Devi , Kannan Karthik , Krishnamurthy G.
Published: April 2021

In pursuit of manufacturing of carbon nanotubes (CNTs) in good yield at lower temperatures, a mixture of d-block elements such as Iron, Nickel, and Cobalt was expected to be advantageous because of the high yield and low temperature (at 220 - 250° C) synthesis. The physical state and aggregation of these catalyst particles in the reaction medium have been found to play an interesting role in obtaining CNTs at better yield. Carbon nanotubes have been successfully produced by an uncomplicated two-step solvothermal method between sodium and dichlorobenzene via Ni/Fe/Co as catalyst precursor.  The dependence of yield of CNTs on the catalyst system was determined via different ratios of catalysts and at various other experimental conditions such as different heating temperatures, different durations of heating. The X-ray powder diffraction study has indicated the graphite kind of the products. Microscopic characterizations (SEM and TEM) implied us the diameters of carbon nanotubes are 10-14 nm. Raman spectroscopy shows the presence of graphitized carbon in carbon nanotubes. Significant influence by the heating temperature and heating duration has been observed on the product yield.
Solid state radio-measuring optical-frequency transducer of gas flow rate
Authors: Osadchuk A.V. , Osadchuk V.S. , Osadchuk I.A. , Ilchuk D.R. , Pastushenko G.A.
Published: April 2021

The paper presents a study of a solid state radio-measuring optical-frequency transducer of gas consumption based on a transistor structure with a negative differential resistance. A mathematical model of a solid state radio-measuring optical-frequency flowmeter was developed, which made it possible to obtain the conversion function and the sensitivity equation. The solid state radio-measuring optical-frequency gas flowmeter is based on a transistor structure with a negative differential resistance, consisting of a HEMT field-effect transistor and a bipolar transistor with a passive inductive element. When replacing the passive inductance with an active inductive element, the transducer can be completely integrated. The negative differential resistance formed by the parallel connection of the impedance with the capacitive component on the collector-drain electrodes of the transistor structure and inductance leads to the occurrence of electrical oscillations in the oscillator circuit. Theoretical and experimental studies have shown that with an increase in gas consumption from 0 l/h to 4 l/h, the generation frequency decreases from 812.65 MHz to 811.62 MHz at a supply voltage of 3.3 V, and at a supply voltage of 3.8 V from 813.00 MHz to 811.80 MHz. It is shown that by choosing a constant voltage power supply mode, it is possible to obtain an almost linear dependence of the generation frequency on the gas flow rate and choose channels for transmitting measurement information. The obtained theoretical and experimental studies are in good agreement, the relative error does not exceed 2.5 %.
Was the Dostoevsky Estate Profitable?
Authors: Dementyeva Tatyana
Published: April 2021

In August 1831, the parents of Fyodor Dostoevsky purchased an estate in the Kashirsky district of the Tula Province, consisting of the hamlet of Darovoe and the village of Darovaya. In February 1833, they bought the neighboring village of Cheremoshnya. The entire property, including the above-named villages and hamlet, also included land plots in the wastelands: Nechaeva, Trypillya, Harina, Shelepova and Chertkova. Having become the owners of 58 peasant souls and more than 500 dessiatines of land, the Dostoevskys were considered average local landowners. However, Darovoe, well-known as the childhood place of the writer Fyodor Dostoevsky, remains poorly studied from an economic point of view. One of the reasons is that today there are very few documents that could reliably indicate the economic condition of the estate for the memorial period. An exception is the monograph of V. S. Nechaeva “In the Dostoevsky family and estate,” published in 1939, where, based on the correspondence of M. F. Dostoevskaya and M. A. Dostoevsky, the author claims that the estate they acquired was not merely unprofitable, but also caused a family tragedy. The opinion of V. S. Nechaeva became fundamental for researchers of the writer's biography. However, this issue can be revised today, which is what the presented work is devoted to. The correspondence of Fyodor Dostoevsky's parents, the letters of his older brother M. M. Dostoevsky, who was the guardian over the estate and the Memoirs of the younger brother of A. M. Dostoevsky in the aggregate allow to take a fresh look at the estate and the income it brought. In the context of this problem, it is of interest to refer to the newly published “Report of the headman of the village of Darovoe Savin Makarov to Mikhail Mikhailovich Dostoevsky” dated October 8, 1850. The document was discovered in the Russian State Archive of Literature and Art and complements the well-known sources on the economic condition of the Dostoevsky estate.
Legends and Facts About the Life of M. A. Dostoevsky in Darovoe (1837—1839)
Authors: Bessonova Albina
Published: April 2021

The history of the Dostoevsky estate Darovoe, which is an important period in the life of Fyodor Dostoevsky, still contains unresolved issues. The most ambiguous is the fate of the writer's father, who ended his days in Darovoe. The cause of the tragic death of M. A. Dostoevsky and the place of his burial are still controversial. The document from the State Archive of the Tula region, published for the first time, allows to dispel all doubts about the location of the grave of M. A. Dostoevsky. The article examines the history of the issue, including oral tradition, analyzes well-known documentary sources, and the entry in the metric book of the Holy Spirit Church of the village Monogarovо in 1839 confirms the testimony of A. M. Dostoevsky about the burial of his father in the churchyard. The fact of M. A. Dostoevsky's affair with the house serf Ekaterina Alexandrova is questioned, since it was based on rumors and undocumented. The author analyzes the oral tradition phenomenon and its influence on the formation of the image of M. A. Dostoevsky as a cruel landowner killed by peasants out of revenge. New archival documents allow us to revise the stereotypes that have become entrenched in Dostoevsky studies.
The Issue of the Split (Schism) in the Vremya and Epokha Journals (1861–1865)
Authors: Alekseeva Lyubov
Published: April 2021

The article is devoted to the issue of the schism in the Vremya and Epokha journals published by the brothers Fyodor and Mikhail Dostoevskys. The content of the articles and reviews published in them is considered from the viewpoint of pochvennichestvo (native soil) position of the publications. The stance of their editorial board is formulated in the Announcement about the publication of the Vremya journal in 1861, which became a program document. The main concept of Vremya, as well as the Epokha journal that followed it, was the need to merge the educated part of society with the people. There was a spiritual, political and social gap, a split between them, which was caused not only by the church reform of the 17th-century, but also by subsequent state reforms that caused people’s rejection. The idea of the Dostoevskys' journals was to get to know the people, recognize their originality, appeal to the native principle, pochva (soil), the communal form of life, the synthesis of the ideas developed in Europe, which will find their development in the Russian narodnost’ (Russian people). These thoughts were absorbed by F. M. Dostoevsky’s idea of enhanced knowledge of Russia, which was reflected in his article “Two Camps of Theorists.” Using the publications in the Vremya and Epokha journals, it is demonstrated that the concept of split (schism) in the minds of the 19th-century authors was much broader than the historical phenomenon caused by the 17th-century church reform. They consider the split not only as a religious, but also as a social and political phenomenon that requires deep research and rectification, a synthesis of European and popular principles.
“Dostoevsky Schools” in the Russian Press
Authors: Proshchenko Anastasia
Published: April 2021

The article analyzes newspaper and magazine materials about schools named after F. M. Dostoevsky (1881‒1917). Most of the publications concern the history of the parish school in Staraya Russa, but the authors found out that at the turn of the 20th century several more attempts were made to open an educational institution in memory of the writer, namely in Kiev and Kazan provinces. The article provides a brief overview of the history of other schools that ever bore the name of F. M. Dostoevsky (Shkid in Petrograd, a gymnasium in Harbin, a school in Dostoevo, school No. 2 in Staraya Russa, school No. 1148 in Moscow). During this period, the press began a broad discussion of the idea of perpetuating the writer’s memory by opening public schools named in his honor; thanks to the initiative of “Novoe Vremya” newspaper, a fundraising campaign was initiated to establish the first school in Staraya Russa. The accents and assessments of the Russian press are of particular value: they are an expression of both the public attitude towards F. M. Dostoevsky, and a means of preserving the nation's memory of him. The press materials allow to track the attitude of people to the heritage of F. M. Dostoevsky and to establish the motives that inspired representatives of various social strata to donate funds for the construction of schools in memory of the writer. The following sources are used as a foundation: chronicles, reports and other texts from the newspapers “Novoe Vremya,” “Moskovskie Vedomosti,” “Kazansky Telegraph,” “Nedelya,” “Volzhsky Vestnik,” “Starorusskaya Pravda,” “Volkhovsky Listok,” “Kazanskie Gubernskie Vedomosti”; articles from the magazines “Istorichesky Vestnik,” “Novgorodskiye eparhialnye Vedomosti,” and others.
Diamond Abrasive Treatment: How to Overcome Established Myths
Authors:   V. Bakul Institute for Superhard Materials of the NAS of Ukraine, Kyiv, Lavrinenko V.I.
Published: April 2021

The book describes the myths and misconceptions that have developed over the past fifty years in studies of diamond abrasive processes using the hardest materials (diamonds and cubic boron nitride). Ways to overcome these myths are shown. This will help to build a more realistic theoretical basis for the further development of new processes using tools made of superhard materials. Modern ideas about the procces of treatment with abrasive tools from superhard materials, features of their effective application on the example of developments of the National Academy of Sciences of Ukraine are covered. The book is intended for schoolchildren, students, engineers and technicians who are interested in the effective use of superhard abrasives for treatment of various materials in everyday life and production conditions.
A Rock-Hewn Yǝmrǝḥannä Krǝstos? An Investigation into Possible ‘Northern’ Zagwe Churches near ʿAddigrat, Tǝgray
Authors: Muehlbauer Mikael
Published: April 2021

Rulers of the short-lived Zagwe dynasty have long been lauded for their role as builderkings, producing several churches in the Lalibäla complex in Lasta in addition to the nearby church of Yǝmrǝḥannä Krǝstos. Despite some textual evidence linking this group to Tǝgray, scholars have not hitherto identified any particularly ‘Zagwe’ buildings therein. This paper proposes that several rock-hewn churches near ʿAddigrat in Tǝgray may be the product of thirteenth-century Zagwe church building. My hypothesis is anchored by my identification of the church of Gwaḥgot Iyäsus as a hewn copy of Yǝmrǝḥannä Krǝstos in both form and measurements. This church, which replicates the dimensions of this famous free-standing church almost exactly, also has wood elements within that were seemingly imported from Lasta. Furthermore, I connect the painted decorations to other churches in the cluster: Maryam Qiʿat and even Maryam Qorqor in Gärʿalta. By expanding our view of the Zagwe dynasty towards Tǝgray, we may better understand this little-known period of Ethiopian history.
Sabine Dinslage and Sophia Thubauville, eds., Seeking out wise old men: Six decades of Ethiopian Studies at the Frobenius Institute revisited
Authors: Meckelburg Alexander
Published: April 2021

Book Review
A Rejoinder regarding Veronika Six’s Review Published in Aethiopica, 22 (2019), 271–276
Authors: Nosnitsin Denis
Published: April 2021

The rejoinder responds to a review, penned by Dr Veronika Six, of a recent catalogue of Ethiopic manuscripts kept in Det Kongelige Bibliotek, Copenhagen, compiled by Dr Denis Nosnitsin. The rejoinder contains an exchange of arguments on the properties of the catalogue and responds to some critical remarks of V. Six. The dialog concerns individual characteristics of some specific manuscripts but also raises a number of issues and questions regarding some fundamental aspects of the cataloguing practice.
The semantics and pragmatics of Amharic spatial expressions
Authors: Asaye Gashaw Arutie
Published: April 2021

Dissertation Abstract
Issayas Tesfamariam, ትግርኛ ንዛረብ: Let’s Speak Tigrinya, Elementary Level, A First-Year Textbook, A Multidimensional Approach to the Teaching and Learning of Tigrinya As a Foreign Language
Authors: Voigt Rainer
Published: April 2021

Buchbesprechung
First record of Cynomops planirostris (Peters, 1866) (Chiroptera, Molossidae) in Corrientes province, Argentina
Authors: Argoitia Antonella , Cuaranta Pedro , Barquez Rubén M.
Published: April 2021

Cynomops planirostris (Peters, 1866) was previously known in Argentina only from the provinces of Salta and Jujuy in the northwest and in Misiones in the northeast. Here, we newly report this species from the province of Corrientes and the Humid Chaco ecoregion. We also offer information on the natural history of the species and on the bat assemblage present in the study area. This record increases the number of species of bats known in Corrientes to 34.
Substitution of Ca2+ in Calcite by Sn2+ and Sr2+ cations through ion exchange characterized by X-ray absorption and photoelectron spectroscopies
Authors: Junio Jonathan B. , Chirawatkul Prae , Conato Marlon T. , Mercado Candy C.
Published: April 2021

Tin (Sn2+) and strontium (Sr2+), two potential alternatives to lead (Pb2+) in perovskite formation, were explored in transforming calcium carbonate (CaCO3) into a leaving group in a cation exchange reaction. This is the first part of a sequential ion exchange process in transforming calcite into a Pb-free perovskite material for perovskite solar cell applications. Calcite, a polymorph of CaCO3, was successfully transformed into strontianite (SrCO3) through a cation exchange reaction. In the Sn substitution reaction on the other hand, no SnCO3 formation was noted. Instead, oxides of Sn were formed. The wider spaces in between Ca2+ cations in (100) orientation account for the higher atomic Sn2+ and Sr2+ concentrations as compared to (001) orientation, where the cation movement is restricted. X-ray absorption and photoelectron spectroscopies were used to investigate the ion-exchange transformation of calcite towards the formation of an intermediate carbonate material.

Graphic abstract
Механізм реалізації регуляторної політики економічної безпеки в аграрному секторі України
Authors: Балян А. В. , Гришова І. Ю. , Марчук Л. Л.
Published: April 2021

У статті досліджується механізм реалізації регуляторної політики економічної безпеки аграрно-го виробництва, головною метою якого є гарантування його стабільного й максимально ефективногофункціонування в сучасних умовах та високого потенціалу інноваційного розвитку в довгостроковійперспективі та обґрунтовано головні положення функціонування даного механізму. Визначено системузаходів, що забезпечуватимуть реалізації регуляторної політики економічної безпеки аграрного виро-бництва. Досліджено соціальну складову економічної безпеки аграрного виробництва та механізм їїфункціонування. Також визначено заходи, щодо запобігання подальшому поглибленню руйнівних со-ціальних процесів в аграрному секторі та обґрунтовано основні напрями формування соціальної ін-фраструктури. Формування ринку сучасної матеріально-технічної бази сільськогосподарського вироб-ництва передбачає активний розвиток постачальницько-збутової мережі матеріально-технічних ресу-рсів аграрного виробництв. В зв’язку з цим важливого значення набувають напрями подальшого тех-нічного переозброєння аграрних товаровиробників.
Інноваційні напрямки розвитку закладів готельного господарства
Authors: Д’яконова А. К. , Трішин Ф. А. , Тітомир Л. А. , Коротич О. М.
Published: April 2021

Готельний бізнес є найперспективнішим сектором економіки, який успішно розвивається вУкраїні. Розширюються культурні і ділові зв’язки з країнами світу, що вимагає розміщення гостей в го-телях нашої країни Швидкий ріст індустрії гостинності і збільшення попиту на готельні послуги свідчитьпро необхідність забезпечення якості готельних послуг. Ринок готельних послуг вимагає ефективнихзмін у відповідності з світовими інноваційними і інформаційними досягненнями. Реінжиніринг є інстру-ментом, використання якого відкриває нові можливості для побудови ефективного виробництва з на-дання послуг, побудованого на нових принципах управління і спрямованого на підвищення якості об-слуговування та задоволення гостей, які користуються послугами готельного підприємства. Для моде-лювання бізнес-процесів була використана методологія IDEF0, яка заснована на побудові функціона-льної деревовидної моделі діяльності готельного підприємства. Бізнес-процес розглядається як послі-довність дій, спрямованих на досягнення кінцевого конкретного результату, який можна виміряти і оці-нити. Ефективне управління змінами відноситься до найважливіших факторів успішної дії підприємствна міжнародному ринку. Реінжиніринг слід розглядати як комплексний метод управління змінами, якийпередбачає перебудову або перепроектування бізнес-процесів з урахуванням аналізу різних показни-ків діяльності підприємства – організаційних, інформаційних, екологічних та інженерних.
Resumen en extenso: Efecto dosis/frecuencia de la suministración de Dunaliella sp. a la dieta de Litopenaeus vannamei durante una infección con Vibrio parahaemolyticus.
Authors: Coloquio de Nutrigenómica y Biotecnología Acuícola CONYBA
Published: April 2021

Memorias del 3er Coloquio de Nutrigenómica y Biotecnología Acuícola 2020
Resumen en extenso: Análisis bioeconómico del cultivo intensivo foto-heterotrófico de camarón blanco (Litopenaeus vannamei) en alta salinidad con reposición mínima de agua, para el ciclo verano-otoño
Authors: Coloquio de Nutrigenómica y Biotecnología Acuícola CONYBA
Published: April 2021

Memorias del 3er Coloquio de Nutrigenómica y Biotecnología Acuícola 2020
Resumen en extenso: Uso de compuestos funcionales en dietas bajas en harina de pescado para totoaba
Authors: Coloquio de Nutrigenómica y Biotecnología Acuícola CONYBA
Published: April 2021

Memorias del 3er Coloquio de Nutrigenómica y Biotecnología Acuícola 2020
Names of Trees in East Slavic Charms
Authors:   Institute of Slavic Studies of the RAS, Agapkina Tatyana A. , Berezovich Elena L. ,   Ural Federal University, Surikova Olesya D. ,   Ural Federal University,   Vinogradov Russian Language Institute of the RAS
Published: April 2021

This paper continues the series of the authors’ works on the toponymy of charms previously published in Voprosy Onomastiki. It deals with proper names of trees (dendronyms) in East Slavic spells coming from East Belarusian, East Ukrainian, West and South Russian territories where the considered folklore tradition is particularly prominent. The naming of revered trees is a fairly common cult practice that occurs through cultural semiotization of significant plant properties: the most important features are the size and spreading of a tree, its situational connection with a person, the place of growth, etc. The folklore tradition (as reflected in charms) of naming trees follows the same logic, however, direct evidence of dendronyms “migration” from the real toponymic system to the texts of charms is lacking. The origins of mythodendronyms are established mainly in folklore, book and manuscript tradition. The paper explores functional features of charms that include names of trees (typically these are healing charms against fever and a snakebite). Hence, a classification of dendronyms from the point of view of their origin is proposed: deanthroponymic names (Yevim oak, Erofei tree, Katyarina byarosa, etc.), toponym-based names (Mamvriy oak, Buyan oak, Lukomor oak, etc.), ethnonym-based names (Sorochinsky oak, Vereisk oak, etc.), names derived form appellatives (karcolist tree, starodub oak, Rakitaniy oak, Kindyashnoe tree, and many others). The paper proposes etymological and motivational solutions for most of the mythodendronyms known to the authors, many of which are “opaque” and have not yet received a reliable interpretation.
Proper Names in Oral Poetic Tradition in the Light of Folklore Lexicography
Authors:   Kursk State University, Bobunova Maria A. , Khrolenko Alexander T. ,   Kursk State University
Published: April 2021

The paper uses three cases of folklore lexicography to substantiate its applicability and the methodological capacity it holds in the study of onomastic elements of different folklore genres. It is this original lexicographic approach that gives a new perspective and brings new results to the solution of some recurrent problems connected with the poetic language of folklore. The research builds on the lexicographic projects by Kursk linguists, focused on folklore studies: a dictionary of the language of bylinas and the concordances of Russian non-ritual lyric songs. The present study employs the overlay technique for comparing dictionary entries and gives three cases of its application. The first compares lexicographic descriptions of the Dunai (Danube) river name as one of the key images of Russian folklore, and how it is used in non-ritual lyric songs of the 19th century. This has allowed the authors to identify semantic differences in the river name across the regions. The second case illustrates that, lexicographically, the body of folklore proper names has a capacity to verbalize the emotional experience of the ethnic group that has both regional and gender-based specificity. The third case considers the meaning, usage, and derivational potential of exotic place names. Based on bylinas texts, the authors illustrate transformations of borrowed words in the vocabulary of Russian folk-tale narrators. On the general scale, embracing a lexicographic approach to the study of folklore vocabulary can solve a number of long-standing issues related to semantics, word-formation, generic and territorial features of the national poetic language. Apart from that, the authors conclude that folklore lexicography can open new interesting areas of onomastic research and gives a tool to explore them.
“A Town with Two Names”: A Historical Oikonym in Modern Context (The Case of the Town of Pokrovsk/Engels)
Authors:   The Russian Presidential Academy of National Economy and Public Administration, Akhmetova Maria V.
Published: April 2021

The article uses the example of the town of Engels (Saratov Region) to explore the case of duplicate naming in the local usage, i.e. the use of the historical oikonym Pokrovsk (until 1931) and its derivatives along with the official name of the town or instead of it. The author showcases that in the local speech, the historical name of the town has become a living alternative used in almost every sphere except business and documentation. At the same time, there are some testimonies to the gradual demarcation of the language contexts associated with the old town name and its derivatives. Until the mid-1990s, the name Pokrovsk and the adjective pokrovskii were regarded nearly as equivalents to the corresponding official names. Currently, their use is confined to Russian Orthodox circles (due to the religious origins of the name Pokrovsk derived from Pokrov ‘the Intercession of the Theotokos’ — an Orthodox holiday). Apart from that, the derivatives with pokrovsk- component can occur in proper names, mainly of commercial (names of business entities and products) and cultural (names of holidays) types. Other usage cases refer to mass media or urban naming. Meanwhile, the demonym pokrovchane, which in the Soviet period was only limited to historical contexts, reclaimed its positions in the 1990s. Currently, it is widely used in the local press and everyday speech, being more popular than the formal variant engelsity (and even less frequent engelsites, engelstsy, engel(s)chane). The reason why pokrovchane proved more usable lies in both the inconsistency and variability of the Engels-based demonyms in the mid-20th and early 21st centuries. The author also addresses the case of “hybrid” naming with both old and new oikonyms combined: Pokrovsk-Engels (Engels-Pokrovsk) and their derivatives. The mentioned onyms are mainly used in local contexts (city’s holiday celebrations, cultural events, local history, etc.). The article was prepared under the RANEPA state assignment research program.
Efficient Retrieval of Matrix Factorization-Based Top-k Recommendations: A Survey of Recent Approaches
Authors: Le Dung D. , Lauw Hady
Published: April 2021

Top-k recommendation seeks to deliver a personalized list of k items to each individual user. An established methodology in the literature based on matrix factorization (MF), which usually represents users and items as vectors in low-dimensional space, is an effective approach to recommender systems, thanks to its superior performance in terms of recommendation quality and scalability. A typical matrix factorization recommender system has two main phases: preference elicitation and recommendation retrieval. The former analyzes user-generated data to learn user preferences and item characteristics in the form of latent feature vectors, whereas the latter ranks the candidate items based on the learnt vectors and returns the top-k items from the ranked list. For preference elicitation, there have been numerous works to build accurate MF-based recommendation algorithms that can learn from large datasets. However, for the recommendation retrieval phase, naively scanning a large number of items to identify the few most relevant ones may inhibit truly real-time applications. In this work, we survey recent advances and state-of-the-art approaches in the literature that enable fast and accurate retrieval for MF-based personalized recommendations. Also, we include analytical discussions of approaches along different dimensions to provide the readers with a more comprehensive understanding of the surveyed works.
Фразеология древнеанглийского языка: проблемы лексикографического описания
Authors: Мухин С. В.
Published: April 2021

Статья посвящена анализу основных проблем лексикографического описания фразеологических единиц в древнеанглийском языке и выработке конкретной методики создания фразеологического словаря древнеанглийского языка для специалистов в англистике, фразеологии и истории языка. Отмечается малая степень исследованности данной тематики в отечественном языкознании (А в зарубежном?) и вскрываются факторы такого положения вещей. В целях практической лексикографии предложена категоризация главных проблем и последовательное рассмотрение их в четырех основных группах. В ходе исследования анализируются вопросы, касающиеся: а) параметризации фразеологического словаря, содержащего исторический материал; б) отбора словарных единиц; в) расположения отобранных фразеологических единиц; г) состава и структуры словарной статьи. Концептуально фразеологический словарь древнеанглийского языка представляется как комбинирующий черты словарей собственно фразеологического и исторического типа. Проблема отбора словарных единиц решается с помощью анализа письменных памятников древнеанглийского периода и метода фразеологической идентификации. Словник составляется на основе рассмотрения облигаторных и факультативных фразеологических признаков древнеанглийских словосочетаний, а также анализа лексикографических данных существующих словарей древнеанглийской лексики. При выборе принципов расположения словарных статей предполагается следовать устоявшимся традициям фразеографической практики. Предлагается видение структуры словарной статьи, включающей в себя ряд обязательных элементов: вокубулу, лемму, все документально зафиксированные формы фразеологизма, дефиницию и современный фразеологический эквивалент при наличии такового, несколько иллюстративных примеров контекстуального употребления и гетерохронные варианты данной фразеологической единицы в средне- и новоанглийском периодах. На основе выработанных рекомендаций составлены примеры словарных статей.
Аргументативные маркеры в испанском политическом дискурсе
Authors: Корнева В. В. , Долбилова Е. В.
Published: April 2021

Статья посвящена изучению особенностей функционирования дискурсивных маркеров в испанском политическом дискурсе как эксплицитных средств актуализации аргументации в речи испанских политиков. Рассматриваются такие важные для целей исследования проблемы, как основные подходы к пониманию политического дискурса и к трактовке дискурсивных маркеров. Особое внимание уделяется классификации дискурсивных маркеров аргументации в зарубежной испанистике, описываются основные виды аргументативных маркеров и средства их репрезентации в испанском языке. В качестве материала исследования использовались выступления на заседаниях в Конгрессе депутатов Генеральных Кортесов Испании шести кандидатов на пост главы испанского правительства. Общий объем стенограмм публичных выступлений Леопольда Калво (1981), Фелипе Гонсалеса (1989), Марии Хосе Азнара (1996), Хосе Луиса Сапатеро (2004), Марьяно Рахоя (2016) и Педро Санчеса (2016) составляет 51 781 словоупотребление. Методом сплошной выборки в них было выделено 285 случаев употребления аргументативных маркеров. Для анализа языкового материала использовались метод наблюдения, сопоставительный метод, а также метод количественного анализа. В результате проведенного исследования были выявлены частотность и особенности функционирования разных видов аргументативных маркеров (экспликативов, консекутивов и контраргументативов) в испанском политическом дискурсе и в выступлениях отдельных политических деятелей. Были сделаны выводы о закономерностях использования языковых средств репрезентации отдельных аргументативных маркеров в публичных выступлениях политиков в одинаковых коммуникативно-дискурсивных условиях, о взаимосвязи использования разных аргументативных стратегий, приемов и тактик и языковой личности политика.
Индекс морфонем И. Б. Иткина и фонемы русского языка
Authors: Кретов А. А.
Published: April 2021

В статье даётся сопоставление Индекса русских морфонем по И. Б. Иткину с составом фонем, представленных в исконных русских морфемах, выделяемых Казанской фонемологической школой (КФШ). Вначале выявляется совпадение 21 морфонемы с 21 (из 23) фонемой КФШ, а затем обсуждаются расхождения в трактовке глайдов {И/Й}, {У/В}; заимствованных звуков /ф/ (в исконных морфемах согласный /ф/ находится в отношениях дополнительного распределения с неслоговым вариантом сонанта {У/В}; корреляции по твёрдости-мягкости – она признаётся позиционно обусловленной, т. е. нефонематичной; шипящих и аффрикат – они являются либо аллофонами (позиционно обусловленными вариантами) заднеязычных фонем, либо полифонами (представителями двух и более фонем одновременно), а также в трактовке казусов и аномалий: /к/, чередующегося с /т’/ (ср. пускать-пустить) и беглого ударного /е/, чередующегося с /’о/ (ср. Лев-Льва-Лёва). Предлагается устанавливать фонемный состав исконной подсистемы на основании минимальных пар исконных слов (минимальная пара, содержащая заимствованное слово или состоящая из заимствованных слов, позволяет установить фонемный состав интернациональной подсистемы фонем), а также учитывать иерархию языковых уровней: приоритет интересов лексики над интересами морфологии и фонетики, а интересов морфологии – над интересами фонетики.
Креативная грамматика
Authors: Кострова О. А.
Published: April 2021

Рец. на кн.: Гришаева Л. И. Практикум к курсу теоретической грамматики немецкого языка-Ludmilla I. Grischaewa. Aufgabensammlung zum Fach THEORETISCHE GRAMMATIK DES DEUTSCHEN. Воронеж : Воронеж. гос. ун-т, 2020
Функции терминов цветообозначения в художественном тексте
Authors: Матросова Я. Е.
Published: April 2021

В статье рассматривается вопрос о функционировании терминов цветообозачнения в тексте. Обосновывается необходимость выработки новой классификации функций терминов цветообозначения, ориентированной на анализ текстов оригиналов и их переводов. Выделяются номинативная, символическая и образно-структурная функции. Номинативная подразделяется на собственно-номинативную, уточняюще-номинативную и художественно-номинативную. Суть этой функции состоит в номинации цвета, при этом особенность уточняюще-номинативного подтипа заключается в том, что она используется для семантической дифференциации названий сходных оттенков, тогда как в художественно-номинативном подтипе в условиях синонимии цветообозначений предпочтение отдается менее узуальным ввиду их большего стилистического потенциала. В рамках символической функции рассматриваются различные типы символов: архетипический (наиболее универсальный, но в то же время и наиболее размытый, в основном связан с эмоциональной сферой), культурный (связан с отсылкой к конкретным объектам или явлениям культуры) и авторский (связь между термином цветообозначения и нецветовым значением задается непосредственно в тексте и не существует за его пределами). Как и символическая функция, образно-структурная способствует созданию двуплановости текста, но при этом термины цвета в ней не имеют самостоятельных дополнительных значений, хотя участвуют в механизме формирования целостного текста, в том числе встраиваясь в другие подсистемы. В рамках даже одного цветового термина функции могут сосуществовать и дополнять друг друга. Парадигматически нейтральный термин цвета, попадая в текст, может приобретать синтагматическую маркированность и повышать свой стилистический динамический ранг.