bluuebunny/crossref_metadata_2025 huggingface dataset:
Mathematical model for determining the design parameters of an inflatable payload-bearing space platform
Authors:   Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine, Lapkhanov E.O. , Palii O.S. ,   Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine
Published: December 2021

The development and application of inflatable space structures is of considerable interest in modern space science and technology. Today, these structures enjoy wide application from aerodynamic inflatable deorbit means to inflatable residential sections for the International Space Station. This is because the masses of inflatable structures are smaller in comparison with others, which in turn minimizes the cost of their orbital injection. In view of the considerable interest in orbital constellations, the authors of this article propose the use of an inflatable space aerodynamic system as a platform for a payload. In doing so, we obtain a distributed satellite system on an inflatable space platform. The advantage of this technology is that it assures the maintenance of the relative position of the elements (payload) of a distributed satellite system of this type with minimal energy consumption. In its turn, to analyze the features of the operation of a particular space technology, its mathematical model is required. Because if this, the aim of the article is to develop a mathematical model for estimating the design parameters of an inflatable payload-bearing space platform. The mathematical model of the operation of an inflatable payload-bearing space platform developed in this work consists of three modules: a module of orbital motion, a module of calculation of the thermodynamic parameters of the inflatable platform, and a module of calculation of its variable inertia tensor. The article also identifies four gas modes of operation of the inflatable segment of the space platform and gives the inertia tensor as a function of the ambient temperature, which is necessary for further research. It should be noted that the application of the mathematical model allows a priori analysis of a wide range of inflatable space platform design parameters. On this basis, a design parameter analysis method that uses this model was developed. The application of this method may greatly simplify further research into the synthesis of an angular motion controller for an inflatable payload-bearing space platform, the choice of the design parameters of inflatable segment shell materials, and the study of the platform operation in different gas modes.
Nonlinear oscillations of a sandwich plate with a 3D-printed honeycomb core
Authors:   A. Pidgorny Institute of Mechanical Engineering Problems of the National Academy of Sciences of Ukraine, Avramov K.V. , Uspensky B.V. ,   A. Pidgorny Institute of Mechanical Engineering Problems of the National Academy of Sciences of Ukraine, Derevianko I.I. ,   Yuzhnoye State Design Office
Published: December 2021

A three-layer sandwich plate with a FDM-printed honeycomb core made of polycarbonate is considered. The upper and lower faces of the sandwich are made of a carbon fiber-reinforced composite. To study the response of the sandwich plate, the honeycomb core is replaced with a homogeneous layer with appropriate mechanical properties. To verify the honeycomb core model, a finite-element simulation of the representative volume of the core was performed using the ANSYS software package. A modification of the high-order shear theory is used to describe the structure dynamics. The assumed-mode method is used to simulate nonlinear forced oscillations of the plate. The Rayleigh–Ritz method is used to calculate the eigenfrequencies and eigenmodes of the plate, in which the displacement of the plate points during nonlinear oscillations are expanded. This technique allows one to obtain a finite-degree-of-freedom nonlinear dynamic system, which describes the oscillations of the plate. The frequency response of the system is calculated using the continuation approach applied to a two-point boundary value problem for nonlinear ordinary differential equations and the Floquet multiplier method, which allows one to determine the stability and bifurcations of periodic solutions. The resonance behavior of the system is analyzed using its frequency response. The proposed technique is used to analyze the forced oscillations of a square three-layer plate clamped along the contour. The results of the analysis of the free oscillations of the plate are compared with those of ANSYS finite-element simulation, and the convergence of the results with increasing number of basis functions is analyzed. The comparison shows that the results are in close agreement. The analysis of the forced oscillations shows that the plate executes essentially nonlinear oscillations with two saddle-node bifurcations in the frequency response curve, in which the periodic motion stability of the system changes. The nonlinear oscillations of the plate near the first fundamental resonance are mostly monoharmonic. They may be calculated using the describing function method.
Phase Transformation of Hematite to Magnetite Under Microwave Treatment
Authors: ANTONENKO T.S. , BRIK A.B. , TSYMBAL O.Yu. , DUDCHENKO N.O. , OVSIENKO V.V. , CHEREVKO Yu.I.
Published: December 2021

Phase transformations of natural and synthetic hematite in aqueous Fe (II)-containing medium under the influence of microwave radiation at a temperature range from room temperature to 260°С and pressure of 6 MPa were investigated. The saturation magnetization of all initial samples was less than 1 A∙m2/kg, while the saturation magnetization of the samples after phase transformations increases significantly (i.e., up to 27 A·m2/kg). It was shown by X-ray diffraction that all samples were transformed into magnetite. Thermomagnetic curves were measured for the treated samples and Curie temperatures were determined. Curie temperatures of the samples of natural hematite were determined as 560 °C and for synthetic hematite as 559°C that are close to the Curie temperature of pure magnetite (580°C). The relatively high saturation magnetization of obtained magnetic particles makes them promising for different applications (adsorbents of radioactive waste, carriers for magnetic drug targeting, etc.). The results of this investigation could also be useful for developing new technologies for production of iron ore concentrates from the hematite-containing waste of mining and processing plants.
An Alarm Watch for Daytime Urinary Incontinence: A Randomized Controlled Trial
Authors: Caldwell Patrina H.Y. , Kerr Marianne , Hamilton Sana , Teixeira-Pinto Armando , Craig Jonathan C.
Published: December 2021

OBJECTIVES

Daytime urinary incontinence is disabling and occurs in 17% of school-aged children. Timed-voiding is part of standard therapy. Can an alarm watch to aid timed-voiding improve treatment response to standard therapy?

METHODS

The WATCH (Watch with Alarm for Timed-Voiding in Children) study is a randomized controlled trial. Participants were randomly assigned (1:1) to a vibrating alarm or nonalarming watch for 3-months. The primary outcome was the proportion who achieved a complete response (14 consecutive dry days) after 3-months of treatment. Children aged 5 to 13 years who were prescribed timed-voiding for daytime urinary incontinence.

RESULTS

Overall, 243 children, with a mean age of 8 years, were enrolled, with 62% girls. At 3-months, the complete response rates were similar between the 2 groups (22% alarm versus 17% control; difference: 5%; 95% confidence interval (CI): −5% to 16%; P = .42). In the alarm group, treatment adherence was higher (40% vs 10%; difference: 30%; 95% CI: 20% to 40%; P < .001), frequency of incontinence was lower (25% dry; 40% had 1–3 wet days per week, 24% had 4–6 wet days per week, and 12% had daily wetting, compared with 19%, 30%, 35%, and 16%, respectively; P =.05), and fewer had abnormal postvoid residual urine volumes (12% vs 24%; difference: −12%; 95% CI: −21% to −1%; P = .04) compared with the control group. Improvement was transient and did not persist 6 months beyond the treatment period.

CONCLUSIONS

Alarm watches do not appear to lead to complete resolution of urinary incontinence in children but did promote treatment adherence, normalization of postvoid residual volumes, and reduction in incontinent episodes while being used.
À la cabral [ou Sobre soprar feijão]
Authors: Silveira Mélany Dias da
Published: December 2021

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Covariance between the forward recurrence time and the number of renewals
Authors: Losidis Sotirios
Published: December 2021

Recurrence times and the number of renewals in $(0,t]$ are fundamental quantities in renewal theory. Firstly, it is proved that the upper orthant order for the pair of the forward and backward recurrence times may result in NWUC (NBUC) interarrivals. It is also demonstrated that, under DFR interarrival times, the backward recurrence time is smaller than the forward recurrence time in the hazard rate order. Lastly, the sign of the covariance between the forward recurrence time and the number of renewals in $(0,t]$ at a fixed time point t and when $t\to \infty $ is studied assuming that the interarrival distribution belongs to certain ageing classes.
„Nie będę śmierci nabijać licznika”. Fragmenty dziennika pandemicznego Wioletty Grzegorzewskiej
Authors:   Uniwersytet Rzeszowski, Polska, Wolski Jan
Published: December 2021

This article attempts to characterize the published fragments of Wioletta Grzegorzewska’s diary from the beginning of the covid-19 pandemic and to evaluate its cognitive and artistic value. It takes a global literary tradition which has existed since ancient times, reflecting on the topics of various catastrophes affecting individual people and entire societies, into account. The hardships of everyday life, dreams and illusions accompanying them are framed as a work showing the features of specific genres: diary, sylvia and reportage.
Kafkowski tryptyk interpretacyjny: opowiadanie „Przemiana”
Authors:   Instytut Badań Literackich PAN, Warszawa, Polska, Moreno-Szypowska Jadwiga Clea
Published: December 2021

The article presents the allegorical novella “The Metamorphosis” of Franz Kafka from a biblical perspective. The main character, Gregor Samsa, is compared to Job and Jesus, the New Adam, and his father to God. The images emerging in the text reveal their hidden meaning, which in a surprising way shows the connection with the “Holy Scriptures”, both with the “Old” and “New Testaments”, which may be surprising in the case of a Jewish writer from the Vltava River. The author uses Kafka’s other writings, including “Letter to His Father”, to demonstrate the autobiographical sources. Gregor Samsa–Franz Kafka sacrifices himself to the Father’s glory. The whole interpretation is inscribed in the philosophy of the Danish thinker – Søren Kierkegaard.
Entwicklung eines Konzepts für eine App zur Überwindung des Medienbruchs beim Stöbern am Regal in der Bibliothek der TH Wildau
Authors:   , Geier Dana
Published: December 2021

Zielstellung der Arbeit ist die Entwicklung eines Konzepts für eine Anwendung zur Überwindung des Medienbruchs zwischen physischen und elektronischen Ressourcen am Regal für die Bibliothek der Technischen Hochschule Wildau. Als Ausgangspunkte dafür werden ein bereits bestehender Prototyp sowie die Ergebnisse eines Kickoff-Meetings mit Kolleg/innen der Hochschulbibliothek und des iCampus-Teams der Technischen Hochschule Wildau genutzt. Zunächst wird dabei die Problematik des Medienbruchs in Bibliotheken erläutert und bestehende Ansätze zur Lösung des Problems skizziert. Es folgen bibliothekarische Vorbetrachtungen zur Standortermittlung, Sacherschließung und Aufstellung in Bibliotheken gefolgt von kurzen technischen Vorbetrachtungen zur Art der App und verwendbaren Frameworks. Anschließend wird der Ist-Zustand dargestellt. Dazu werden die Ausgangsvoraussetzungen an der Hochschulbibliothek sowie Funktionen und Architektur des bestehenden Prototyps beschrieben. Schließlich werden die Stakeholder ermittelt und anhand Personas beschrieben, bevor die funktionalen und nicht funktionalen Anforderungen erfasst werden. Den Hauptteil der Arbeit stellt das Konzept für die Anwendung dar. Im darauffolgenden Kapitel wird die Implementierung der Integration entliehener Bände, der Vormerkfunktion sowie der Durchschaltung zum E-Book beschrieben. In den Schlussbetrachtungen schließlich wird ein Fazit gezogen, aufgefallene Probleme erläutert und ein Ausblick auf Weiterentwicklungsmöglichkeiten geworfen.
Imagem, cinema e psicologia: compondo aproximações entre arte e ciência
Authors: Bueno Gabriel , Zanella Andréa Vieira
Published: December 2021

Resumo Imagem, cinema e psicologia - este artigo tece um diálogo entre esses três complexos e abrangentes temas para desenvolver algumas aproximações teórico-conceituais entre arte e ciência. Tendo como referência a arte cinematográfica, alguns dos recursos técnicos utilizados na composição de suas obras e conceitos oriundos dessa linguagem, o artigo procura içar pontes que partam do campo da estética para agregar reflexões referentes aos processos de subjetivação. Esta alçada tem como horizonte a filosofia da imagem e do tempo de Gilles Deleuze entrelaçada à compreensão benjaminiana da imagem como constituinte do pensamento e o tempo como um eterno agora que não cessa de se atualizar. Ambas as teorias são abordadas de forma dialógica para estabelecer cruzamentos com outros pensadores do cinema e da cultura, bem como com algumas obras fílmicas.
Gênero, sexualidade e educação médica: vivências em uma escola federal que utiliza metodologias ativas de aprendizagem
Authors: Oliveira Pedro Mendonça de , Aquilante Aline Guerra , Moretti-Pires Rodrigo Otávio , Sampaio Sueli Fátima
Published: December 2021

Abstract: Introduction: Sexuality is characterized as a device of power and Medicine plays a key role as one of the main action institutions. Medical education tends to ratify the heteronormative discourse and diagnose deviant patterns as a pathology. It is based on the binary categorization of individuals as an implication of their sexuality. The assessed medical course assumes the methodological proposal of the constructivist spiral, which seeks to guarantee the protagonism of the students, as well as the dialogue with their previous knowledge, using the concept of Meaningful Learning. Objective: To analyze the students’ experiences in the development of the competence profile related to gender and sexuality during medical school. Method: It is a qualitative research using focus groups with students attending the sixth year of the medical course. Result: The study indicates the students’ perception of the importance of active methodologies, as well as the early inclusion in the fields of practice. However, the thematic of gender and sexuality needs to be proposed in the list of triggers for the use of the constructivist spiral. Conclusion: The active teaching-learning methodologies can constitute a counter-hegemonic strategy in the face of the device of sexuality in guaranteeing biopower, as there is a reorientation of these contents in the curriculum.
Student perception and performance using the online tools Socrative® vs. Kahoot!® in the discipline of Urology
Authors: Oliveira André Matos de , Meyer Fernando , Neumaier Mark Fernando , Ströher Gabriela Redivo , Silva Gabriele da , Loesch Maíra de Mayo Oliveira Nogueira
Published: December 2021

Abstract: Introduction: Active methodologies are tools aimed at engaging students in the learning process. Through them, the student is confronted with problem situations and, to solve them, they need to actively participate in the construction of the solution. Socrative® and Kahoot!® are tools that can be used to support the growing demand for new teaching methods. Objective: This study aims to compare the scores obtained by urology student in pre-tests applied using the Socrative® and Kahoot!® applications, and to analyze the students’ perceptions after the exposure to the learning tools. Method: A prospective and comparative study was carried out on the use of the Socrative® and Kahoot!® applications in the discipline of Urology of the medical course. The cohort consisted of two classes of students, 193 in total. Students were divided into six groups, separated in two different schedules, and they took turns weekly switching the tools. The methodologies were used as a pre-test during the tutorial sessions, aiming to compare the grades obtained by the students between the applications. At the end of the course, the students answered a perception questionnaire in relation to each platform. The data were statistically analyzed using the program SPSS Statistics v.20.0. The Wilcoxon non-parametric test and the Chi-square test were used. Values of p <0.05 indicated statistical significance. Result: The Socrative® application obtained better results in terms of the number of correct answers and in relation to the students’ satisfaction. Among the six topics addressed in the pre-tests, two showed higher scores with the Socrative® tool (p = 0.017 and p = 0.042). As for the perception questionnaire, the Socrative® tool showed an average score 1.8 points higher than Kahoot!® (0 - 10 scale), and statistical significance was found in seven out of the eight evaluated questions. Conclusion: The Socrative® tool showed higher grades and was more satisfactory to students than Kahoot!®.
Procedure-based assessment (PBA) in urology residency: initial experience
Authors: Medeiros Daniel Câmara Alves de , Medeiros Paulo José de , Diniz Rosiane Viana Zuza
Published: December 2021

Abstract: Introduction: Changes in society and in medical practice have demanded improvements in the surgical teaching process in Medical Residency, leading to the emergence of new teaching-learning and assessment models based on competencies. In this process, the Procedure Based Assessment (PBA) stands out as an assessment tool in the workplace, supported by the assessment of competencies and structured feedback. Objective: This study aims to present the development and implementation of PBA protocols in an Urology Medical Residency Program. Method: This is a prospective, action-research study, carried out from July/2019 to July/2020, involving 10 preceptors and six urology residents. The group consensus methodology was used to create the protocols, in addition to training participants for competency assessment. Six PBA protocols were created, corresponding to the prevalent procedures in the training of the resident/year, followed by their implementation. In addition to the descriptive data analysis, Spearman’s coefficient (rR) was used for inferential analysis of the correlation between training time and the resident’s performance assessed by the PBA. Result: The development of two PBA instruments for each of the three years of training allowed the assessment of all residents. Thirty-one evaluation meetings were held, with an average of five evaluations per resident. There was a positive correlation between longer training time and better resident performance in laparoscopic radical prostatectomy, percutaneous nephrolithotomy, laparoscopic nephrectomy and in the set of the six procedures (rR = 0.97, 0.55, 0.42 and 0.31, respectively). We report the first use of PBA in Urology Residency in Brazil. The methodology of group consensus associated with a training process proved to be an option for developing this type of instrument. The positive correlation between improved performance in the PBA and training time corroborates studies that resulted in the consolidation of the tool’s validity and reliability. Conclusion: The creation of PBA protocols by group consensus is feasible and resulted in the first use of this tool in Urology Residency in Brazil. The PBA may represent a more modern surgical teaching assessment strategy, suitable for training in real scenarios.
Integrative taxonomy reveals a new species of Neotropical headstanding fish in genus Schizodon (Characiformes: Anostomidae)
Authors: Garavello Júlio C. , Ramirez Jorge L. , Oliveira Alexandre K. de , Britski Heraldo A. , Birindelli José L. O. , Galetti Jr Pedro M.
Published: December 2021

Abstract Schizodon encompasses approximately 15 species of Neotropical headstanding fishes. Integrative taxonomy, combining molecular and morphometric analyses with traditional taxonomic methods, was used to investigate Schizodon vittatus and its potential new sister species. Molecular differences between the two species in the barcode are greater than intra-specific variation recovered in species of Schizodon, and the two species represent distinct lineages for approximately one million years. The two species are morphologically very similar, and the meristic data showed great overlap. Morphometric analyses also showed overlap among the putative species but indicated differences in caudal-peduncle depth, orbital diameter, and length of anal-fin rays. Color pattern seems to provide a clear diagnostic feature for the two species. Schizodon vittatus usually has four dark brown transversal bars on body, and its sister species has three conspicuous bars, with the fourth, if present, inconspicuous and dorsal to the lateral line. Schizodon vittatus is redescribed based on the type and recently collected specimens, its type locality is revisited, and its known distribution restricted to the Araguaia and Tocantins drainages. The new species, sister to S. vittatus, distributed in the Xingu and Tapajós drainages, is described. A key for the identification of the Amazon clade species of Schizodon is provided.
O Ballet Klauss Vianna em Belo Horizonte (1958-1962): caminhos de uma modernidade para o balé brasileiro
Authors: Alvarenga Arnaldo Leite de
Published: December 2021

RESUMO O artigo discute quatro criações coreográficas de Klauss Vianna, entre os anos de 1958 e 1962, ao elaborar uma estética própria, moderna, para o balé brasileiro. Metodologicamente são analisadas as imagens de quatro capas de programas do Ballet Klauss Vianna (BKV), fotografias de quatro obras que integraram esses programas, depoimentos orais, matérias e crítica jornalística da época, escritos de Vianna, autores ligados à Nouvelle Histoire, à crítica de Arte, entre outros, relacionando-os. Pretende-se destacar o potencial das imagens como ferramenta metodológica relevante para uma possível compreensão das produções coreográficas de Klauss Vianna na historiografia da dança no Brasil.
MARKET REACTION TO THE TONES OF EARNINGS CONFERENCE CALLS
Authors: Tonin Joyce Menezes da Fonseca , Scherer Luciano Marcio
Published: December 2021

RESUMO Este estudo tem como objetivo analisar os diferentes tons transcritos utilizados pelos participantes nas teleconferências de resultados e sua influência na geração de retornos anormais das ações. Este estudo preenche uma lacuna de pesquisa que é a segregação da análise do tom por tipo de analista e de representantes corporativos durante a teleconferência de resultados. A amostra abrangeu o período de 2010 a 2017, totalizando 1.165 transcrições de teleconferências de resultados de 44 empresas brasileiras listadas na B3 – Brasil, Bolsa, Balcão. O principal achado é que o tom transcrito e as palavras utilizadas com base no dicionário de Loughran e McDonald (2011) têm poder de previsão significativo sobre as reações do mercado de ações após as teleconferências de resultados.
Mechanical properties, microstructure and chemical composition of naked mole rat incisors
Authors: Qi Hongyan , Gao Guixiong , Wang Huixin , Ma Yunhai , Wang Hubiao , Wu Siyang , Yu Jiangtao , Wang Qinghua
Published: December 2021

The naked mole rat incisors (NMRI) exhibit excellent mechanical properties, which make it a good prototype for design and fabrication of bionic mechanical systems and materials. In this work, we characterised the chemical composition, microstructure and mechanical properties of NMRI, and further compared these properties with the laboratory rat incisors (LRI). We found out that (i) Enamel and dentin are composed of organic matter, inorganic matter and water. The ratio of Ca/P in NMRI enamel is higher than that of LRI enamel. (ii) The dentin has a porous structure. The enamel has a three-dimensional reticular structure, which is more complex, regular and denser than the lamellar structure of LRI enamel. (iii) Enamel has anisotropy. Its longitudinal nano-hardness is greater than that of transverse nano-hardness, and both of them are higher than that of LRI enamel. Their nano-hardness and elastic modulus increase with the increase in distance from enamel-dentin boundary. The nano-hardness of dentin is smaller than that of enamel. The chemical composition and microstructure are considered to be the reasons for the excellent properties of NMRI. The chemical composition and unique microstructure can provide inspiration and guide for the design of bionic machinery and materials.
POSSIBLE VIRAL ETIOLOGY OF GLIOBLASTOMA MULTIFORME
Authors: GÖKOĞLU Abdulkerim , TUCER Bülent , GOKAHMETOGLU Selma , ÖZDEMİR Çağlar , ATALAY Altay , CANOZ Ozlem , KURTSOY Ali
Published: December 2021

Objective: Recently, CMV, EBV, BKV and JC virus have been suggested to contribute to gliomagenesis, but evidence is largely contradictory. The aim of this study was to test 50 tissue samples from patients with GBM and 21 normal brain tissues obtained from autopsy material of patients without brain tumors in order to investigate the presence of possible oncogenic microorganisms, including EBV, JCV, BKV and Toxoplasma gondii, and to evaluate patient clinical characteristics of patients with respect to microorganism findings.

Material and Method: Fifty formalin-fixed paraffin-embedded specimens obtained from glioblastoma tissue and 21 normal brain tissues obtained in the autopsy of individuals without brain tumor were retrospectively analyzed. After de-paraffinization of tissue samples, DNA extraction was performed for real-time polymerase chain reaction (RT-PCR) analysis to detect BKV, JCV, EBV and Toxoplasma gondii via commercially-available multiplex kits.

Results: Strikingly, viral DNA was detected in 12 specimens (24%) of the GBM group and in none of the non-tumor brain specimens (p=0.014). BKV was detected in 4, EBV was detected in 3 (of these, 2 were alive during the study), Toxoplasma gondii was detected in 5 and JCV genotype was detected in 1 of the total 50 GBM tissue specimens.

Conclusion: Our results suggest that viruses may be associated with the development or progression of GBM. Understanding the role of BKV, JCV, EBV and other oncoviruses in the etiology of gliomas would likely open up new avenues for the treatment and management of this highly fatal central nervous system tumor.
Vulnerabilities in Smart Home system
Authors:   Moscow State Technical University of Civil Aviation, Volvach A. V. , Poddubnaya N. S. ,   Moscow State Technical University of Civil Aviation
Published: December 2021

The article considers the existing vulnerabilities in the Smart Home system. The characteristic vulnerabilities in information security of some devices included in the Smart Home system are determined. The methods to improve information security of Smart Home systems are proposed.
International Congress of Mathematics. CHICAGO. 1893
Authors:   Perm State University, Alyabieva Valentina
Published: December 2021

The circumstances of the International Mathematical Congress in Chicago and the influence of the Congress on the development of mathematical research in the United States are investigated.
Seasonal development and perspectivity of introduced species Pinus L. in the taiga area (Karelia)
Authors:   Petrozavodsk State University, Kishchenko I. T.
Published: December 2021

The results of studies carried out in 1988–2016 are presented, from April to October in the Botanical Garden of Petrozavodsk State University (South Karelia, middle taiga subzone). The objects of research were representatives of 4 introduced species of the genus Pinus: P. strobus L., P. montana Mill., P. pu-mila (Pall.) Regel., P. sibirica Du Tour. The timing of the onset of almost all phenophases in the species of the species Pinus under study largely depends on the current temperature regime of the air, the state of the environment for several days prior to the beginning of a particular phenophase, and also on the values – of the main environmental factors during the formation of wintering buds of the last year. A straight-forward correlation was found between the dynamics of the studied environmental factors and the timing of the onset of phenophases. The earliest dates of the onset and end of phenophases were noted in P. pu-mila, and the latest in P. strobus. A comprehensive assessment of the prospects of the studied species made it possible to establish that P. sibirica, P. montana, and P. pumila (58–65 points) are quite promis-ing, and P. strobus are promising (57 points). These species can be recommended for introduction into cultural communities and landscaping of settlements with a low degree of pollution by pollutants.
IMPROVED METHODOLOGICAL TOOLS FOR EVALUATION OF INTERFIRM INTERACTION EFFICIENCY IN THE CONTEXT OF DIGITALIZATION
Authors:   Ural Institute of Management of the Russian Presidential Academy of National Economy and Public Administration, Popov Evgenij V. , Simonova Viktoriya L. ,   Ural Institute of Management of the Russian Presidential Academy of National Economy and Public Administration, Tikhonova Anna D. ,   Ural State University of Economics
Published: December 2021

T he development of efficient interfirm interactions for the sustainable development of particular business entities and their strategic structures calls for special tools and management methods in the context of economy’s digitalization driven by a wider openness of economic systems and more extensive network development. This determines the demand for a methodology designed to evaluate the interfirm interactions to improve their efficiency under the digital transformation of the social and economic system. The purpose of the study is to develop methodological tools to measure the efficiency of the interfirm interactions, and these tools can be derived from identifying and analyzing the factors contributing into the result-focused exploitation of the information communication technologies. The authors hypothesize that a model of efficient interfirm interactions is defined by its three components: interaction strategy; availability of the resources for interfirm interactions (information communication technologies); resource management. The article analyzes evaluation approaches to interfirm interactions to identify a number of shared features and to systematize efficiency factors. The heads of the industrial enterprises were surveyed, and the motivation factors for the business entities to develop their interfirm interactions were defined: 1) lower risks of contracting liabilities; 2) better coordination of entities’ activities. A multi-factor model of digitalization factors which affect the efficiency of interfirm interactions is developed. This model complements theoretical methods which describe the impact of digital technologies on the relationships between firms and will contribute into their sustainable economic development. A matrix of firms’ strategy types has been derived from their exploitation of information communication technologies. It describes the strategies of involvement, awareness, monitoring, and integration. The authors came to conclusion that the development of the information communication resources is turned out to be fundamental for the integration and the key factor to shape and to develop the efficient interfirm interactions in modern economy. A further research is seen to be in developing a tool and algorithm based approach to examine the behavioral strategies for the business entities so that to define their status in the interfirm interactions and to develop measures aimed to increase the efficiency of interfirm interactions with regard to forecasted digitalization.
FUTBOLCULARDA SLC6A4 PROMOTÖR POLİMORFİZMİNİN DAĞILIMI
Authors: EKEN Başak Funda , POLAT Tolga , SERCAN DOĞAN Canan , OKTAY Şehkar , TACAL ASLAN Beste , ULUCAN Korkut
Published: December 2021

İnsan psikolojisini etkileyen ve en önemli bir biyobelirteç olan serotonin, sporcunun atletik performansını da olumsuz yönde etkileyebilmektedir. Çalışmamızın amacı, sağlıklı profesyonel futbolcularda anksiyete ile bağlantılı SLC6A4 geni promotör bölgesinde “S” ve “L” allel dağılımının incelenmesidir. Çalışmamıza aktif olarak haftada en az 4 gün antrenman programı uygulayan 15-29 yaş arası 19 profesyonel futbolcu ve herhangi bir egzersiz programı uygulamayan (kontrol grubu) 45 birey katıldı. Gerekli etik kurul izinleri alındıktan sonra çalışma protokolunun sonuç ve çıktılarını anlatan onam formları katılımcılara imzalatıldı. Çalışmamıza katılan bireylerden daha sonra ağız içi epitel hücreleri alınarak DNA izolasyonu gerçekleştirildi. Tüm polimorfizmlerin genotiplemesi, polimeraz zincir reaksiyonu (PZR) metodu kullanılarak belirlendi. Çalışmamıza katılan futbolcularda SLC6A4 geninin LL, LS, SS genotiplerinin sayı ve yüzdeleri sırasıyla 11(%57,8), 4(%21,1), 4(%21,1) olarak belirlenmiştir. Çalışma kohortumuzda L alleli 26 (%68,4), S alleli ise 12 (%31,6) oranında gözlemlenmiştir. Çalışma grubumuzda SLC6A4 geninin promotör bölgesi incelendiğinde, LL genotipi baskın olarak bulunurken, L alleli de S alleline göre daha yüksek oranda bulunmuştur. Kontrol grubunda ise aynı genotip sayı ve yüzdeleri sırası ile 12 (%26,7), 24 (%53,3) ve 9 (%20) olarak belirlenmiştir. Kontrol grubundaki allelik dağılımı ise L alleli 48(%53,3), S alleli 42 (%46,7) olarak gözlenmiştir. Sporcu grubu ile kontrol grubu arasında genotip dağılımlarında (p=0,0001) bulunurken, allelik dağılımlarında (p=0,0425) bulunarak her iki grup arasında da istatiksel açıdan anlamlı farklılık saptanmıştır. Sonuç olarak çalışmamızda SLC6A4 promotör polimorfizmlerinin belirlenmesinin, sporcularda oluşan anksiyete ve bilişsel kaygı düzeyinin erken dönemde önlenmesine yardımcı olabileceği sonucuna varılmıştır.
The public and private life of Sol Plaatje
Authors: Mokae Sabata-mpo
Published: December 2021

There has been an upswing in attention to South African biography in the past few decades, with a welcome trend towards remaking or revising the canon of important figures from the South African past. This has included edited collections of the works of prominent individuals, and notable among these have been early-twentieth century black African politicians and writers. Historical Publications Southern Africa (renamed from its previous moniker, the Van Riebeeck Society) has published four edited collections of the writings of such individuals since 2008, including Isaac Williams Wauchope, Richard Victor Solope Thema, and A.B. Xuma. A Life in Letters, a collection of Solomon T. Plaatje's correspondence, is the fourth such volume in just over a decade. There are 260 letters, written from 1896 to 1932, included in the book. Most are in English, but some are in Setswana, Dutch/Afrikaans, and a few are in German. Although a number of the letters are from the collections of the Cullen Library at the University of the Witwatersrand, the reviewer counted twenty-seven different collections across three continents. The book is thus an excellent resource not only for historians, but also for students and the general public who now have access to a wide range of Plaatje's thoughts, opinions, and emotions that are evident in his letters.
Simulating Turbulent Air Flow Past aHemispherical Body
Authors: Meas M.R. , Bruwer J.F. , Combrinck M.L. , Harms T.M.
Published: December 2021

The flow of air past a smooth surface-mounted hemisphere is investigated numerically using six common RANS turbulence models and seeking steady flow solutions. Where possible, the turbulence models are applied using standard wall functions, resolving the viscous sublayer, and the enhanced wall treatment option in ANSYS Fluent. Results of the simulations are compared against measurements taken in a wind tunnel experiment. The comparison shows that enhanced wall treatment and resolving the boundary layer on a low Reynolds number mesh yields superior accuracy compared to standard wall functions or resolving the boundary layer on a high Reynolds number mesh, for all the turbulence models considered. The RNG 𝒌𝒌−𝜺𝜺 model with enhanced wall treatment applied is found to yield the most accurate prediction of the static pressure distribution across the surface of the hemisphere model. Conversely, the Reynolds Stress model and the standard 𝒌𝒌−𝝎𝝎 model are found to give the least accurate predictions, irrespective of the near-wall modelling approach applied. It is found that good agreement with the experimental data for this case of flows can be attained using each of the near-wall modelling techniques if a well-suited turbulence model is used.
Marina Tsvetaeva et Lev Chestov
Authors: Tabachnikova Olga
Published: December 2021

Cet article présente une exploration d’une proximité étroite entre les visions du monde de Marina Tsvetaeva et Lev Chestov et de leur philosophie de base manifestée dans leur créativité poétique et philosophique. Nous analysons cette proximité en termes de philosophie du refus et de philosophie de la tragédie, alors que l’ordre mondial existant est passionnément et catégoriquement rejeté. Ce niveau de refus et de non-conformité semble remarquable dans le contexte de la tradition culturelle russe de la compassion, de la réconciliation tragique et de la gratitude absolue, du refus en termes éthiques plutôt qu’esthétiques (ce que le romantisme russe démontre incontestablement). Si on la juge par des mesures ordinaires, une telle attitude se démarque et semble effrayante, même à l’intérieur du fameux maximalisme de la culture russe. On constate qu’il y a deux niveaux où la vie et l’héritage de Tsvetaeva peuvent être appréciés, un niveau quotidien et un niveau poétique. Il faut souligner la nécessité de se souvenir toujours de l’énorme prix existentiel que Tsvetaeva a payé pour son génie poétique non seulement par sa mort tragique, mais aussi par tous les jours de sa vie, quand elle se soumettait constamment à un équivalent du Jugement Dernier, si l’on cite Joseph Brodsky.
« Qu'elles sont nombreuses, les demandes d'une femme aimée... »
Authors: Lushenkova Foscolo Anna
Published: December 2021

Sont publiés ici, les lettres et messages autographes de Marina Tsvetaeva, pour la plupart inédits, datant des dernières années de son exil en France (1938-1939). La correspondance est divisée en quatre groupes en fonction de la nature des documents : 1) une note manuscrite de Tsvetaeva à destination de son fils Gueorgui (« Mour ») ; 2) ses lettres et messages pour Nadejda Toukalevskaïa ; 3) ses lettres pour Tamara Toukalevskaïa épouse Marinova, fille de Nadejda Toukalevskaïa ; 4) les notes rédigées « à quatre mains » et qui constituent une forme de dialogues écrits entre Marina Tsvetaeva et Nadejda Toukalevskaïa évoquant des œuvres de la poète et ses problèmes du quotidien. La version originale de chaque lettre est accompagnée d’une traduction en français. Présentation, traduction et commentaires d’Anna Lushenkova Foscolo.
Rencontre avec Pouchkine
Authors: Korkina Elena
Published: December 2021

Le présent article reprend les traductions que Marina Tsvetaeva a effectuée pour les festivités organisées en l’honneur d’Alexandre Pouchkine à l’occasion du centième anniversaire de sa mort. Sa « pouchkiniana » personnelle, qui comportait à l’époque le poème intitulé « Rencontre avec Pouchkine » (1913) et le cycle « Poèmes dédiés à Pouchkine » (1931), a été complétée par les traductions des poèmes de Pouchkine vers le français créées en 1936-1937, par un essai autobiographique Mon Pouchkine, ainsi que par une recherche lyrique intitulée Pouchkine et Pougatchiov. L’histoire des traductions est intimement liée avec le parcours poétique et Marina Tsvetaeva.
L’Union soviétique de Chansons
Authors: Popova Alina
Published: December 2021

Nous présentons les traductions en français de certaines chansons révolutionnaires faites par Marina Tsvetaeva dans les années d’avant-guerre. Il s’agit des chansons dont les traductions intégrales sont conservées dans les brouillons de Tsvetaeva. Pour illustrer l’implication de Tsvetaeva dans ce travail sur commande, nous proposons une lecture des lettres de Tsvetaeva à la personne qui lui a commandé ces traductions. Ces traductions circulent sur Internet, sans le nom de son auteure, et il est temps de mettre un nom sur ce grand travail.
Подросток и город: добро пожаловать, или Посторонним вход воспрещен. Дискуссия
Authors: Каринэ Сергеевна Никогосян , Павленко Ксения Викторовна , Пузанов Кирилл Александрович , Соколова Мария Владимировна , Юркевич Анастасия Юрьевна
Published: December 2021

Сегодня взросление человека проходит в основном в урбанизированных средах. Поэтому всегда актуален вопрос о взаимоотношениях городского детского сообщества — и особенно подростков как отдельной группы с пространством, в котором они живут. Для подростков город является местом встреч и досуга, играет важную роль в их взрослении и социализации. В последние годы особенно активно обсуждается вопрос о возможности комфортного города, который был бы дружелюбен к детям. С этим связан целый спектр тем: безопасность в городской среде, подростковая маргинализация, независимая мобильность и многие другие. Цель дискуссии — обсудить взаимодействие подростков и города, стратегии освоения ими городского пространства и пространственную сегрегацию.
Quality of Employment: Strategies and Interpretations of Spanish Employers and Trade Unions
Authors: Arnal María , Prieto Carlos , Caprile María
Published: December 2021

This article examines the different discourses of trade unions and employers on quality of employment in Spain. The study takes a qualitative approach, using discussion groups to obtain discursive information about the meanings of quality, assessments and the different strategies employed by social agents. Trade unions use the ‘quality discourse’ as a reason to examine and reconstruct their current role, extending their main concerns and paradigms from those which defend workers’ interests to those which consolidate their criticism of a reprehensible Spanish employer class. Employers’ discourse, on the other hand, is aimed at highlighting the market’s productive purpose, and sustaining their privileged position in labour management, whilst disassociating and distancing themselves from the employment decisions they make.
Physiotherapist’s approach and treatment preference in the patients of rheumatoid arthritis in Karachi, Pakistan: A cross sectional survey
Authors: Shobha Lekhraj , Vikash Chughani , Natasha Bhutto , Aadil Ameer Ali
Published: December 2021

Objective: To assess the treatment approach of physiotherapists towards patients with Rheumatoid Arthritis. Material & methods: A cross-sectional study was conducted from June to August 2016 among the 116 selected participants who were working in different physical therapy setups of Karachi Pakistan. A self-constructed questionnaire was used among the participants which consist of demographic Characteristics (age, gender, Qualification, and experience). While the Knowledge and utilization related close-ended questions were the 1. Type of exercise (isometrics and isotonic exercise), utilization of manual techniques (use of Maitland peripheral joint mobilization techniques, Cyrix mobilization techniques, Mulligan mobilization techniques & Manual joint distraction). 2. The use of electrotherapy modalities (use of TENS, Ultrasound, Cryotherapy & Heating) & 3. Treatment preference includes (results of manual therapy, electrotherapy or electrotherapy & manual therapy both in combination). Data were analyzed by using Statistical Package for Social Sciences (SPSS) version 21. Results: The majority of physiotherapists (n=71, 61.2%) belong to the age group of 31 to 45 years, and (n=71, 61.2%) were male. After checking the Qualification the majority (n=65, 56%) were Post-graduate and (n=62, 53.2%) were having 7 to 15 years of experience. Among all (n=94, 81%) of physiotherapists were using an isometric type of exercises in the patients with Rheumatoid arthritis. Most of (n=101, 87%) the Physiotherapist was using peripheral joint distraction in patients with Rheumatoid arthritis. The majority (n=109, 93.9%) of physiotherapists were using manual therapy and electrophysical agents in combination among the patients with Rheumatoid arthritis. Conclusion: The physiotherapists who are working in different setups of Karachi were treating the patients of RA by using different techniques of manual therapy along with the combination of electrophysical agents. In electrophysical agents, they were using the tens and heating combination for pain management.
Modelo polaco de implementación de la política de desarrollo rural de la Unión Europea
Authors: Litwiniuk Przemysław
Published: December 2021

El estudio analiza las soluciones jurídicas polacas destinadas a la implementación de las nuevas formas de ayuda de la Unión Europea en el sector agrícola y al desarrollo de las zonas rurales, a partir de las cuales se forma un concepto específico del tramitación y ejecución de las solicitudes presentadas por los candidatos, otorgándoles una posición jurídica atípica en el curso de los procedimientos. El autor, analizando el tema, señala que las tareas y la implementación de los principales instrumentos de la Política Agrícola Común fueron encomendadas a entidades administrativas específicas que operan, entre otras cosas, en forma de personas jurídicas estatales (agencias gubernamentales), asociaciones y fundaciones; así como que las partes en el procedimiento fueron privadas, en virtud de las disposiciones que establecen las normas y el modo de otorgamiento de las ayudas, de los derechos resultantes de los principios de la Ley de procedimiento administrativo. Las conclusiones, acompañadas de comentarios críticos, son terminadas con propuestas de lege ferenda destinadas a reformar el modelo institucional y procesal polaco de implementación de los instrumentos de la PAC en las nuevas perspectivas financieras para 2021-2027.
Algunas consideraciones jurídicas para alcanzar un consenso en torno a la gobernanza de la luna y la utilización de sus recursos
Authors: Prado Alegre Elvira
Published: December 2021

Los Estados con mayor capacidad espacial están desarrollando programas para mantener la presencia humana, tanto en la Luna como en su órbita, con el establecimiento de bases lunares y estaciones espaciales. La gobernanza de los retos emergentes, con nuevos actores y nuevos intereses, plantea la necesidad de cuestionarse si éstos deben abordarse dentro o fuera del marco de las Naciones Unidas y si la realidad científica y tecnológica espacial de esta década requiere un mayor desarrollo del derecho espacial y nuevos instrumentos jurídicos para su implementación.
Vicisitudes de la implantación de la mediación en España
Authors: Cano Vera Francisco Jesús
Published: December 2021

En el presente artículo trataré de dar una pincelada sobre la presencia de la mediación en nuestra sociedad y, sobre todo, su implantación en nuestro sistema, judicial y extrajudicial, de resolución de conflictos, con ocasión de la reciente publicación del Anteproyecto de Ley de Medidas de Eficiencia Procesal del Servicio Público de Justicia.