bluuebunny/crossref_metadata_2025 huggingface dataset:
Metastatic Lesion of the Vertebra in Prostate Cancer and Complex Instrumental Diagnostics
Authors: Kochergina N. V. , Prokhorov S. N. , Tkachev S. I. , Ryzhkov A. D. , Bludov A. B.
Published: June 2021

Purpose: To conduct a retrospective analysis of the clinical case of metastatic vertebral lesion in prostate cancer and the algorithm for the use of instrumental diagnostic methods.

Material and methods: Patient 67 years old. History of prostatectomy for prostate cancer. Suspected metastatic lesion of the left transverse process of the 7th thoracic vertebra based on PET/CT. For clarification, MRI, Skeletal scintigraphy, SPECT/CT were performed.

Conclusion: Access to a wide range of instrumental methods does not guarantee correct diagnosis. Modality, research methodology, time between the first and clarifying methods — all these factors affect the correct diagnosis, the choice of the treatment method, the timeliness of the start of treatment and, as a result, the fate of the patient.
Fixed points of Osilike-Berinde-G-nonexpansive mappings in metric spaces endowed with graphs
Authors: KAEWKHAO A. , KLANGPRAPHAN C. , PANYANAK B.
Published: June 2021

"In this paper, we introduce the notion of Osilike-Berinde-G-nonexpansive mappings in metric spaces and show that
every Osilike-Berinde-G-nonexpansive mapping with nonempty fixed point set is a G-quasinonexpansive mapping.
We also prove the demiclosed principle and apply it to obtain a fixed point theorem for Osilike-Berinde-G-nonexpansive mappings. Strong and \Delta-convergence theorems of the Ishikawa iteration process for G-quasinonexpansive mappings are also discussed."
Positive solutions for second-order differential equations o Kirchhoff type on the half-line
Authors: BOULAIKI HABIBA , MOUSSAOUI TOUFIK , PRECUP RADU
Published: June 2021

The aim of the present paper is to study the existence of nontrivial nonnegative solutions for a second-order boundary value problem of Kirchhoff type on the half-line. Our approach is based on variational methods, a monotonicity trick related to the mountain pass lemma, cut-off functional technique, and a Pohozaev type identity.
TBLT Perspectives on Teaching from an EFL Textbook at a Vietnam University
Authors: Dao Hao , Newton Jonathan
Published: June 2021

This study investigated the relationship between the affordances for task-based teaching in a textbook and teachers’ awareness of and uptake of these affordances. Specifically, it compared and evaluated the communicativeness and task-likeness of activities in the textbook, New Cutting Edge, Elementary (Cunningham & Moore, 2005) and then contrasted these findings with classroom observation data on the way the activities were implemented by three Vietnamese English as a Foreign Language (EFL) teachers at a Vietnamese university. Interviews with the teachers provided further data on their implementation decisions. The analysis and evaluation of the textbook activities and how they were implemented adopted two coding frameworks, one for evaluating communicativeness (Littlewood, 2004) and the other for evaluating task-likeness (Ellis, 2018). The analysis of communicativeness revealed that while the textbook has a high proportion of activities with low communicative value, the task analysis showed that many of these activities are, in fact, either tasks or task-like. However, form-focused activities typically precede the tasks, which compromises the alignment of the textbook with TBLT. Data from classroom observations of three 90-minute lessons taught by each teacher showed that the teachers consistently reduced the communicativeness and task-likeness of the textbook activities, and replaced them with teacher-centered, explicit grammar explanation and drill practice. Stimulated recall interviews and follow-up semi-structured interviews revealed the teachers’ rationales for their practice, including their concern about the unsuitability of tasks for low proficiency students, exam pressure and time constraints, and their lack of awareness of the nature of language learning tasks.
Philosophie an russischen Universitäten. Drei Jahrhunderte der Einschränkungen
Authors: Artemyeva Tatiana
Published: June 2021

,,Russische Philosophie“ unterscheidet sich deutlich von der ,,an russischen Universitäten studierten Philosophie“. Dies trifft zu in Bezug auf deren Inhalt sowie Umfang und ist wiederum auf die isolierte Funktionsweise von akademischen Institutionen innerhalb der Struktur
intellektueller Kultur und der russischen Gesellschaft zurückzuführen.
Cricket mit Trotzki. C. L. R. James’ transnationaler Radikalismus im Zeitalter der Extreme
Authors: Nagl Dominik
Published: June 2021

Der Kulturkritiker, Historiker, marxistische Theoretiker und Cricketexperte Cyril Lionel Robert James – geboren am 4. Januar 1901 auf Trinidad – gehört, obwohl in Deutschland bislang kaum rezipiert, zu den einflussreichsten schwarzen Intellektuellen des 20. Jahrhunderts.1
Eine gewisse Bekanntheit genießt hierzulande allenfalls ,,Black Jacobins“, seine 1938 erschienene Studie über die haitianische Revolution von 1791 bis 1804.2 Sie gilt bis heute nicht nur als Klassiker einer transnationalen und kapitalismuskritischen Geschichtsschreibung,
sondern auch als stilbildend für die im britischen Marxismus so einflussreiche Perspektive einer ,,Geschichte von unten“, an die später Historiker wie E. P. Thompson und Eric J. Hobsbawm anknüpften. James’ umfangreiches politisches und essayistisches Werk hat dagegen
ebenso wenig Beachtung gefunden wie sein aus revolutionär-marxistischer Überzeugung geführter Kampf gegen den Stalinismus.3 C. L. R. James war als kommunistischer Häretiker und antikolonialer Aktivist in vielerlei Hinsicht ein widerständiger und subversiver
,,organischer Intellektueller“.4 Er zog es stets vor, prekäre Außenseiterpositionen zu beziehen und den Ohnmächtigen eine Stimme zu geben, statt sich mit den Mächtigen zu arrangieren. Seine vielfältige autodidaktische Forschungspraxis übte er
meist abseits akademischer Institutionen aus.5 James betrieb ähnlich wie Karl Marx Gesellschaftskritik unter prekären Lebensbedingungen im ungewissen Handgemenge sozialer und politischer Kämpfe. Sein Werk und rastloses Leben stehen im Kontext einer transatlantischen
schwarzen Diaspora, die seit der frühen Neuzeit als Antwort auf Kolonialismus und Sklaverei eine Vielzahl subversiver politisch-kultureller Gegenströmungen hervorgebracht hat.6 Paul Gilroy hat diesen Erfahrungsraum, in dem sich ein besonderes, kosmopolitisches Bewusstsein
der Moderne herausbildete, in seinem einflussreichen gleichnamigen Buch als ,,schwarzen Atlantik“ bezeichnet. Er spricht wie W. E. B. Du Bois in seiner epochalen Studie ,,The Souls of Black Folk“ von 1903 von einem ,,doppelten Bewusstsein“. Gemeint ist damit, dass sich im
,,schwarzen Atlantik“ durch das schmerzvolle Verschmelzen gegensätzlicher europäischer und außereuropäischer Einflüsse in einem Prozess der Kreolisierung allmählich neue, hybride Subjektivitäten herausbildeten. Das aus disparaten Wurzeln (roots) und
auf transnationalen Migrationswegen (routes) entstehende Bewusstsein ist nicht homogen. Es stellt vielmehr einen ,,provokativen und sogar oppositionellen Akt des politischen Ungehorsams“ gegen die Zuschreibung einer eindeutigen ethnischen und nationalen Identität dar, das die rassistische
Dichotomie und soziokulturelle Hierarchisierung der kolonialen Welt in Frage stellt.7
Statistical processing of pharmacological experiments results measured in ordinal and quantitative scales, if it is impossible to analyze using parametric methods
Authors: Tsorin I. B.
Published: June 2021

The article discusses descriptive statistics of data measured in ordinal and quantitative scales, and criteria for determining the statistical significance of differences between samples when it is impossible to analyze using parametric methods. Special attention is paid to the problem of multiple comparisons of this type of data. For each method, examples of processing data obtained in pharmacological studies are given.
Knowledge, attitude and Behavior of the Moroccan Population During Covid-19
Authors: Hmimou Soumaia , Nekkal Nesma , Idrissi Youssef Azami , Boukhorb Sara , Bendahbia Khaoula , Riad Benzidane Sidi Mohamed , Soulaymani Abdelmajid
Published: June 2021

Background: Since December 2019 the world has experienced a significant spread of the Covid-19pandemic. The purpose of this study is to investigate the impact of the coronavirus disease (COVID-19) onthe mental health of the population.Method: This cross-sectional study was conducted in Morocco and was administered to a sample of702 respondents. The subject was assessed using a questionnaire containing the following information:Personal demographic characteristics, knowledge and awareness of COVID-19 outbreak, Attitude towardsCOVID-19 outbreak, Behavioral change in relation to COVID-19 outbreak, Patient Health Questionnaire(PHQ-4) screening questions for anxiety and depression, and finally a questionnaire related to people at riskof psychological harm from social isolation during the COVID-19 pandemic, data collection began threeweeks after confinement began and lasted for five weeks, from April 10 to 08 Mai.Results: 702 participants responded to the survey. The descriptive analysis of the database showed thatthe majority of respondents were male (69.3%), aged 20 to 30 years (46.15%), with university diploma(61.25%) and employed (63.53%).Knowledge differed considerablyby level of education; however, Attitudediffered significantly according to gender and educational level. Correlations between the knowledge,attitude, behavioral behavioural, PHQ-4 and the psychological harm score shows that the variables “attitude,behavioural and Psychological harm” are significantly correlated with the PHQ-4 score, the higher the latterare the greater the last is high.In addition, the “Knowledge” variable is also significantly correlated. Thegreater the knowledge, the smaller the PHQ-4 score.Conclusion: The covid-19 pandemic is a public health problem
Free-radical cyclization approach to polyheterocycles containing pyrrole and pyridine rings
Authors: Mosiagin Ivan P , Tomashenko Olesya A , Spiridonova Dar’ya V , Novikov Mikhail S , Tunik Sergey P , Khlebnikov Alexander F
Published: June 2021

A wide range of derivatives with new pyrido[2,1-a]pyrrolo[3,4-c]isoquinoline skeleton was synthesized by free-radical intramolecular cyclization of o-bromophenyl-substituted pyrrolylpyridinium salts using the (TMS)3SiH/AIBN system. The cyclization provides generally good yields of pyrido[2,1-a]pyrrolo[3,4-c]isoquinoline hydrobromides having no additional radical-sensitive substituents. The free bases can be obtained from the synthesized hydrobromides in quantitative yield by basification at room temperature. The selectivity control of intramolecular arylation was achieved by replacing the halogen: the use of 1-(2-(ortho-bromophenyl)-4-(ortho-iodophenyl)pyrrol-3-yl)pyridinium bromide makes it possible to obtain a monocyclization product, and the bicyclization product from the dibromo derivative. The procedure is also applicable to obtain 3-arylpyrido[2,1-a]pyrrolo[3,2-c]isoquinoline derivatives including 2-unsubstituted skeletons that are inaccessible via Pd-catalyzed cyclization.
COVID-19 and the Pandemic's Spatio-Temporal Impact on Tourism Demand in Bavaria (Germany)
Authors: Schmude Jürgen , Filimon Sascha , Namberger Philipp , Lindner Erik , Nam Jae-Eun , Metzinger Pauline
Published: June 2021

Being a unique
hazard, COVID-19 led to various global distortions. Tourism was significantly
affected, and numerous authors are discussing future implications for the
industry. However, only a few studies consider the effects of COVID-19-related
measures on tourism's demand side. For
the state of Bavaria (Germany), we introduce the relevant legislative measures
and their implications on tourism demand. Following Sigala's
(2020)
suggestion, we illustrate the tourism demand development during the pandemic in
space and time by analysing Bavaria's
overnight stays on the districts'
administrative level. For the first nine months of the ongoing pandemic, we
identify the district's population
density, its relative location to major cities, and tourism intensity being
decisive for both, decline and recovery. Recommendations for policy action can
be derived directly from the different spatial and temporal developments we
have identified. Thus, it appears that individual districts vary considerably,
especially in the speed and extent of their recovery following the first shutdown,
in part due to the factors identified. Due to the varying degrees to which the
districts and their tourism businesses recover after the crisis, we argue that
customised, regionally differentiated political measures should be considered.
Use of Microcomputers for Library Financial Planning
Authors: Schneider D. W. , Seay Catherine
Published: June 2021

Library managers need current and accurate financial data to make critical resource allocation decisions. The implementation of library accounting functions on a microcomputer can aid in making both the accounting and the managerial functions more effective.
Cuidadores de idosos: sobrecarga e qualidade de vida
Authors: Marques Nunes Pricinote Silvia Cristina , Neres Costa Milka , Dias Rodrigues Schmaltz Vivian , Rufino João Pedro , Português Almeida Julia , Moreira dos Santos Karolina
Published: June 2021

Objetivo: Identificar os fatores que se relacionam à sobrecarga produzida sobre cuidador no cuidado de idosos dependentes e sua correlação com a qualidade de vida. Métodos: Estudo transversal, que avaliou variáveis sócio-demográficas (sexo, faixa etária, escolaridade, grau de parentesco com o idoso e remuneração da atividade cuidador), a sobrecarga (Zarit Burden Interview) e a qualidade de vida (WHOQOL- Abbreviated) dos cuidadores de pacientes idosos do Hospital Dia do Idoso de Anápolis. Foram obtidas informações sobre o perfil do idoso dependente: o nível de dependência (índice de Katz) e variáveis demográficas (sexo e faixa etária). As médias das variáveis categóricas foram analisadas estatisticamente pelo teste T-Student e ANOVA e entre as variáveis quantitativas foi calculada correlação Pearson. Resultados: De 35 cuidadores incluídos, 83% apresentaram grau de sobrecarga no mínimo moderada. Cuidadores do sexo feminino, alfabetizadas, sem grau de parentesco com idoso obtiveram maiores médias de sobrecarga. Idosos muito dependentes estiveram relacionados também a maiores índices de sobrecarga. Evidenciou-se associação entre altos níveis de sobrecarga e baixos escores na percepção da qualidade de vida. Conclusões: Conclui-se que sobrecarga vivenciada pelos cuidadores de idosos com maior dependência influencia na pior percepção de qualidade de vida e que há um perfil de cuidadores mais suscetível à sobrecarga, contribuindo para conscientização da equipe de saúde sobre a importância de formular medidas de apoio ao cuidador e até de tratamento para que o cuidado seja exercido de forma eficiente no Hospital Dia do Idoso de Anápolis.
Estimating transmission line mismatch under thermal exposure conditions
Authors: Lyachin V. S.
Published: June 2021

The paper introduces a methodology for and the results of estimating transmission line mismatch when carrying out measurements of frequency-dependent parameters of radio and electronic equipment of military-purpose complexes and systems under climatic testing conditions.
UAV control hack system
Authors: Adzhakhunov E. A. , Nikolaev O. V.
Published: June 2021

The paper presents an alternative solution to the problem of drone hacking over a radio channel and uses signal spoofing of a global positioning system (GPS, GLONASS). Within the framework of the study, block diagram and operation algorithm of the system were developed and experimental data were obtained.
Mathematical simulation of aircraft background-target environment above sea level
Authors: Riazantceva V. A. , Steshenko K. N. , Nikeev D. D. , Gavrilov E. V.
Published: June 2021

The developed software model environment allows to estimate the power characteristics of background radiation. A method of this model implementation makes it possible to obtain solar radiation indicatrices taking into account scattered radiation from the water surface. The high level of versatility of the model environment enables us to make calculations for any aircraft under different conditions of the water surface in several spectral ranges.
Reducing zero offset of MEMS sensors under thermal hysteresis conditions
Authors: Krylov A. A.
Published: June 2021

This paper investigates variations of zero offset of MEMS sensors under thermal hysteresis conditions. An experiment was carried out to study the characteristics of zero offset at a constant ambient temperature, abrupt (2 degrees per minute) heating up and abrupt cooling down. A method for identifying zero offset component dependent on thermal dynamics is described. A calibration methodology for this component is proposed for the initial zero offset and zero drift under different thermal dynamics conditions. Application of said methodology is considered for two output information options: direct gyroscope and accelerometer readout and navigation system parameters based thereon (orientation, linear velocities and coordinates).
An algorithm for detecting low-contrast objects in different target environments
Authors: Volchkova D. S. , Dolgova A. S.
Published: June 2021

We propose an algorithm for detecting low-contrast objects in different target environments for application in an optoelectronic system. The algorithm makes it possible to detect low-contrast objects in a complex environment with account of relative movement of the camera and the object in real time.
Evaluation of the network interaction of the participants of the Ulyanovsk-Avia cluster»
Authors: Kolchinskaya Elizaveta , Yakovleva Polina
Published: June 2021

The article addresses the problem of identification and analysis of clusters chosen for state support programs. The goal of the paper is to test the possibilities of social network analysis method as a tool to identify and evaluate the activity of clusters supported by the state. To solve this issue, the authors have chosen an aircraft cluster of the Ulyanovsk region — the Consortium «Scientific, educational and production cluster» Ulyanovsk-Avia. The cluster was analyzed using social network analysis based on information collected in the SPARK database. The authors build cluster networks, perform homogeneity calculations, and identify the central nodes. The results obtained allows us to conclude that Ulyanovsk-Avia demonstrates active ties between its companies. However, this interaction cannot be unambiguously classified as a cluster one.
Transfer pricing as a company management tool
Authors: Avtukhova Elena
Published: June 2021

This article studies one of the most complicated and yet popular company management tools, the transfer pricing. The author considers the aims and purpose of transfer pricing, the formation of a transfer pricing system as a company management tool, popular viewpoints on transfer price calculation methodologies, strengths and weaknesses of the existing approaches, and offers a hypothesis on transforming transfer pricing methods. The paper systematizes transfer pricing methods with due regard to the experience of domestic and foreign companies, the development of the Russian Federation legislation, the recommendations of the OECD, and the studies of auditing and consulting companies. The author presents an overview of the most popular transfer pricing methods which serve as a basis for using one or another method, identifies the factors of efficient management mechanism. The article analyses the specific features of using a particular management mechanism in financial companies and companies operating in real economy, studies the methodology to deploy transfer pricing in a legal entity and within a vertically integrated holding. Taking into account the fact that regulation of transfer pricing is also a tax regulation tool used by the state, the author emphasizes that the problems of transfer pricing tools aimed at tax risk management are not the object of the article. The results of the study can be used by employees and executives of corporate financial divisions, analysts, consultants, and employees of state agencies and authorities while developing the methodology for using financial instruments in company management.
Automotive industry ecologization: advantages and challenges of alternative fuel vehicles implication
Authors: Kudanova Alina , Yakovleva Ekaterina
Published: June 2021

In this research we investigate the ecologization process of automotive market. It is a replacement of internal combustion engine (ICE) working on oil derivatives with hybrid or electric vehicles and automobiles on methane, hydrogen or biofuel. Growing demand for alternative fuel vehicles (AFVs) should trigger technology and infrastructure development, alternative energy elaboration and more environment- friendly means of hydrogen production. Besides, AFVs expansion should be an incentive to decrease hydrocarbons dependence in automotive industry, to diminish anthropogenic influence on environment, as well as to generate eco-friendly lifestyle and driving habits. In Russia’s climate and economic conditions, expansion of methane fuel automobiles maybe a priority. At an initial stage it will insignificantly reduce greenhouse gas emission, but later on will lower particulate matters emissions and raise public awareness of AFVs.
Halálos kimenetelű közúti balesetet okozó rendőr járművezetési alkalmasságára irányuló vizsgálat tapasztalatai
Authors: Juhász Anikó
Published: June 2021

In this study, one case illustrates the regulatory psychological aptitude assessment, evaluation and interpretation of measurement tools. I extended the protocol by questionnaires matching to my research, which give a more comprehensive view of the factors caused by trauma. I found it interesting to prove closer how a member of the police, who defends public order, interprets and experiences the fact that he has violated the law this time. The man, who works for public safety, is in constant contact with people, meets their problems almost every day, helps citizens in difficult situations, behaves as an offender during off-time. I examined how he was able to bear the consequences of his actions responsibly and how he could cope with a traumatic experience. After experiencing the same situation in a different role, did he gain own experiences and due to them became his personality perceptible to change or rather he regressed to an earlier stage of development?
A közlekedési balesetek alakulása a benzinár függvényében
Authors: Major Róbert
Published: June 2021

Road traffic accidents demand considerably more lives than criminal offences against persons, that gives already a reason for adequate actions in order to prevent traffic accidents. The basic criteria of accident prevention are knowledge of the causes of and circumstances leading to accidents. In the previous decades it was mentioned several times from several sources, that the high petrol prices had caused a significant decrease in the number of road traffic accidents. This study aims to explore by mathematical methods if there is a causal link between petrol price levels and the number of road traffic accidents.
A Stellar Mass Dependence of Structured Disks: A Possible Link with Exoplanet Demographics
Authors: van der Marel Nienke , Mulders Gijs D.
Published: June 2021

Gaps in protoplanetary disks have long been hailed as signposts of planet formation. However, a direct link between exoplanets and disks remains hard to identify. We present a large sample study of ALMA disk surveys of nearby star-forming regions to disentangle this connection. All disks are classified as either structured (transition, ring, extended) or nonstructured (compact) disks. Although low-resolution observations may not identify large-scale substructure, we assume that an extended disk must contain substructure from a dust evolution argument. A comparison across ages reveals that structured disks retain high dust masses up to at least 10 Myr, whereas the dust mass of compact, nonstructured disks decreases over time. This can be understood if the dust mass evolves primarily by radial drift, unless drift is prevented by pressure bumps. We identify a stellar mass dependence of the fraction of structured disks. We propose a scenario linking this dependence with that of giant exoplanet occurrence rates. We show that there are enough exoplanets to account for the observed disk structures if transitional disks are created by exoplanets more massive than Jupiter and ring disks by exoplanets more massive than Neptune, under the assumption that most of those planets eventually migrate inwards. On the other hand, the known anticorrelation between transiting super-Earths and stellar mass implies those planets must form in the disks without observed structure, consistent with formation through pebble accretion in drift-dominated disks. These findings support an evolutionary scenario where the early formation of giant planets determines the disk’s dust evolution and its observational appearance.
SOFIA FEEDBACK Survey: Exploring the Dynamics of the Stellar Wind–Driven Shell of RCW 49
Authors: Tiwari M. , Karim R. , Pound M. W. , Wolfire M. , Jacob A. , Buchbender C. , Güsten R. , Guevara C. , Higgins R. D. , Kabanovic S. , Pabst C. , Ricken O. , Schneider N. , Simon R. , Stutzki J. , Tielens A. G. G. M.
Published: June 2021

We unveil the stellar wind–driven shell of the luminous massive star-forming region of RCW 49 using SOFIA FEEDBACK observations of the [C ii] 158 μm line. The complementary data set of the 12CO and 13CO J = 3 → 2 transitions is observed by the APEX telescope and probes the dense gas toward RCW 49. Using the spatial and spectral resolution provided by the SOFIA and APEX telescopes, we disentangle the shell from a complex set of individual components of gas centered around RCW 49. We find that the shell of radius ∼6 pc is expanding at a velocity of 13 km s−1 toward the observer. Comparing our observed data with the ancillary data at X-ray, infrared, submillimeter, and radio wavelengths, we investigate the morphology of the region. The shell has a well-defined eastern arc, while the western side is blown open and venting plasma further into the west. Though the stellar cluster, which is ∼2 Myr old, gave rise to the shell, it only gained momentum relatively recently, as we calculate the shell’s expansion lifetime of ∼0.27 Myr, making the Wolf–Rayet star WR 20a a likely candidate responsible for the shell’s reacceleration.
Cloud Properties of Brown Dwarf Binaries across the L/T Transition
Authors: Brock Laci , Barman Travis , Konopacky Quinn M. , Stone Jordan M.
Published: June 2021

We present a new suite of atmosphere models with flexible cloud parameters to investigate the effects of clouds on brown dwarfs across the L/T transition. We fit these models to a sample of 13 objects with well-known masses, distances, and spectral types spanning L3–T5. Our modeling is guided by spatially resolved photometry from the Hubble Space Telescope and the W. M. Keck Telescopes covering visible to near-infrared wavelengths. We find that, with appropriate cloud parameters, the data can be fit well by atmospheric models with temperature and surface gravity in agreement with the predictions of evolutionary models. We see a clear trend in the cloud parameters with spectral type, with earlier-type objects exhibiting higher-altitude clouds with smaller grains (0.25–0.50 μm) and later-type objects being better fit with deeper clouds and larger grains (≥1 μm). Our results confirm previous work that suggests L dwarfs are dominated by submicron particles, whereas T dwarfs have larger particle sizes.
The Double-bubble Coronal Mass Ejection of the 2020 December 14 Total Solar Eclipse
Authors: Boe Benjamin , Yamashiro Bryan , Druckmüller Miloslav , Habbal Shadia
Published: June 2021

Total solar eclipses (TSEs) continue to provide an invaluable platform for exploring the magnetic topology of the solar corona and for studying dynamic events such as coronal mass ejections (CMEs)—with a higher spatial resolution over a larger spatially continuous extent than is possible to achieve with any other method at present. In this Letter, we present observations of the full extent of a “double-bubble” CME structure from the solar surface out to over 5 solar radii, as captured during the 2020 December 14 TSE. Its evolution through the corona was recorded from two observing sites separated by 13 minutes in their times of totality. The eclipse observations are complemented by a plethora of space-based observations including: Extreme Ultraviolet observations of the solar disk and low corona from SDO/AIA and STEREO-A/EUVI, white-light coronagraph observations from SOHO/LASCO-C2, radio from STEREO-A/WAVES and WIND/WAVES, and X-ray from GOES-16. We also characterize the magnetic field with a potential field source surface model. This CME event itself is of particular interest, as it demonstrates interactions between a prominence channel and an active region that led to the double-bubble structure. Despite the plethora of space-based observations, only the eclipse data are able to provide the proper context to connect these observations and yield a detailed study of this unique CME.
Cytogenetic biological dosimetry assays: recent developments and updates
Authors: Gnanasekaran Tamizh Selvan
Published: June 2021

Biological dosimetry is the measurement of radiation-induced changes in the human to measure short and long-term health risks. Biodosimetry offers an independent means of obtaining dose information and also provides diagnostic information on the potential for “partial-body” exposure information using biological indicators and otherwise based on computer modeling, dose reconstruction, and physical dosimetry. A variety of biodosimetry tools are available and some features make some more valuable than others. Among the available biodosimetry tool, cytogenetic biodosimetry methods occupy an exclusive and advantageous position. The cytogenetic analysis can complement physical dosimetry by confirming or ruling out an accidental radiological exposure or overexposures. We are discussing the recent developments and adaptability of currently available cytogenetic biological dosimetry assays.
Unraveling a complex problem: Dichrorampha velata sp. nov., a new species from the Alps hitherto confounded with D. alpestrana ([Zeller], 1843) sp. rev. = D. montanana (Duponchel, 1843) syn. nov. (Lepidoptera, Tortricidae)
Authors: Schmid Jürg , Huemer Peter
Published: June 2021

Analysis of wing pattern, genital morphology and results of DNA barcoding indicates that the name Dichrorampha montanana sensu auct. actually comprises two species. D. alpestrana ([Zeller], 1843) sp. rev. is considered as senior synonym of D. montanana (Duponchel, 1843) syn. nov., and a lectotype is designated for the latter name to fix the identity. After thorough search for possible synonyms, Dichrorampha velatasp. nov. is described and differentiated morphologically and with DNA barcodes from D. alpestrana and adults and genitalia of both species are figured. Dichrorampha velatasp. nov. is restricted to the European Alps and adjacent regions whereas D. alpestrana is more widespread with likely arctic-alpine disjunction and records from the Alps and the northern part of Great Britain.
Radiation hardening and optical properties of materials based on SiO2
Authors: Stepanov Vladimir A. , Demenkov Pavel V. , Nikulina Olga V.
Published: June 2021

Preliminary studies have shown that the optical absorption spectra of radiation-colored glasses correspond to the spectral behavior of the scattering losses of an optically inhomogeneous medium. The reasons for the same optical changes in glasses of different compositions are the radiation-induced electric charge separation in the structurally nano-inhomogeneous glass volume, polarization and formation of nanometer optical inhomogeneities.

The authors of this work prove that the radiation changes in the mechanical and optical properties of silicate glasses are of the same nature. The performed estimates indicate that the electric charge separation in the glasses occurs up to absorbed doses of about 1 MGy. The local electric charge separation due to the appearance of Coulomb forces leads to radiation hardening of the glasses. The estimated Coulomb hardening of the quartz glasses was ~ 107 Pa.

The theoretical results were experimentally confirmed by measuring the mechanical properties of the glasses under high intensity proton irradiation as well as by testing the mechanical strength of a composite material based on quartz glass. Under proton irradiation with a dose rate of 5×103 Gy/s (energy of 8 MeV) up to threshold doses of ~ (1 – 5) ×106 Gy in the KU-1 quartz glasses, the decrement of acoustic vibrations decreased due to Coulomb hardening. After gamma irradiation with 1.34×105 Gy, the tensile strength of the composite material based on quartz glass increased by up to 20 MPa. This value is in the range of estimates of Coulomb hardening of quartz glasses. It is also shown that ionizing radiation does not affect the elastic modulus of materials based on SiO2.
A species of the genus Panophrys (Anura, Megophryidae) from southeastern Guizhou Province, China
Authors: Luo Tao , Wang Yali , Wang Siwei , Lu Xueli , Wang Weifeng , Deng Huaiqing , Zhou Jiang
Published: June 2021

Herein, we describe Panophrys congjiangensissp. nov. obtained from the Yueliangshan Nature Reserve, Congjiang County, Guizhou Province, China. Phylogenetic analyses based on the mitochondrial genes 16S rRNA and COI indicated that this new species represented an independent lineage, closely related to P. leishanensis. The uncorrected genetic distances between the new species and its closest congener, P. leishanensis, were 3.0% for 16S rRNA and 8.4% for COI. The new species is distinguished from its congeners by a combination of the following morphological characteristics (1) medium body size (SVL 28.6–33.4 mm in males and 38.4–40.2 mm in females); (2) a small horn-like tubercle at the edge of each upper eyelid; (3) the tympanum distinctly visible (TD/ED ratio 0.47–0.66); (4) vomerine teeth absent; (5) the tongue not notched behind; (6) a narrow and unobvious lateral fringe on toes; (7) relative finger lengths II < I < V < III; (8) rudimentary webs on toes; (9) hindlimbs slender, heels overlapping when thighs are positioned at right angles to the body; (10) two metacarpal tubercles on the palm, with the inner metatarsal tubercle long and oval-shaped; (11) the tibiotarsal articulation reaching the nostril when the leg is adpressed and stretched forward; (12) dorsal skin rough with numerous orange–red granules, ventral surface smooth; (13) a single internal subgular vocal sac present in males; and (14) in breeding males, weak gray-black nuptial pads with black nuptial spines present on the dorsal surface of the bases of the first and second fingers. To date, the new species is only known from the type locality.
The European Parliament’s youth policy, 1952-1979: An attempt to create a collective memory of an integrated Europe
Authors: Roos Mechthild
Published: June 2021

Depuis les débuts du Parlement européen (PE) dans les années 1950, ses membres ont poursuivi la création d'une politique communautaire de la jeunesse. Les délégués européens espéraient, par des mesures politiques destinées aux jeunes, former des générations pro-européennes prêtes à s'impliquer activement dans le projet d'intégration. En particulier, les délégués essayaient de créer une mémoire collective d’une Europe intégrée, impliquant une image commune de la Communauté en tant que garante de la paix et de la prospérité, ainsi qu’en tant qu'espace de patrimoine culturel partagé. L’article analyse cet activisme parlementaire destiné aux jeunes pendant la période 1952-1979.
La notion de cadre et la tendance pulsionnelle à l’extinction
Authors: Chervet Bernard
Published: June 2021

La notion de cadre s’inscrit dans une réflexion métapsychologique portant sur la méthode psychanalytique. Si elle semble désigner le besoin de diminuer les impacts de la perception afin de faciliter la régression et la production de retours du refoulé, elle répond surtout au besoin du psychisme d’utiliser la perception de réalités tangibles afin de répondre aux tendances pulsionnelles extinctives. Par l’immobilisation de celles-ci, le cadre participe au premier temps de l’après-coup et à la possibilité qu’advienne un second temps générateur. Dès lors son destin sera de s’effacer au profit de la pensée.
Au bout du rouleau, de Gérard Szwec
Authors: Aisenstein Marilia
Published: June 2021

Dans son livre Au bout du rouleau, Gérard Szwec approfondit à travers des récits cliniques une théorisation métapsychologique et psychosomatique originale, autour d’une clinique de l’extrême, articulant le recours défensif aux procédés autocalmants et aux conduites d’épuisement afin d’endiguer l’excès d’excitation traumatique et l’éclosion des maladies somatiques, faute d’intrication pulsionelle et de pensée fantasmatique. Seront examinés le rôle de la négation et du sadisme dans le processus de la cure.
Leadership Development Activities and Benefits From the Robert Wood Johnson Executive Nurse Fellows Program
Authors: Bryant Debbie Chatman , Miyamoto Suzanne , Adams Jeffrey M. , Deupree Joy P. , Shillam Casey R.
Published: June 2021

The Robert Wood Johnson Foundation Executive Nurse Fellows (RJWF-ENF) program was the gold standard for executive career development of nurse leaders from 1997 to 2017. With more than two decades of experience, ENF program leaders encouraged the fellows to “trust the process” during the difficult times of leadership development and value the collegial relationships they could develop with other nurse fellows. This article describes the benefits of the Action Learning Model for leadership development through the experience of the Boom-X-2K action learning team from the RWJF-ENF final cohort of 2014–2017. The moniker Boom-X-2K was chosen to emphasize supporting the intergenerational development of nurse leaders from three generations: Baby Boomers (Boom), Generation X (X), and Millennials (2K). This article also describes the action learning team's end product: a self-assessment tool designed to evaluate leaders' self-assessed ability to influence.

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J Contin Educ Nurs
. 2021;52(7):344–348.]
L’évaluation au cours de séances d’investigation en mathématiques
Authors: Gandit Michèle
Published: June 2021

Nous présentons le début d’une recherche sur l’évaluation des apprentissages dans les enseignements scientifiques fondés sur l’investigation (ESFI) au collège et à l’école élémentaire. L’article porte sur l’enseignement des mathématiques. Cette recherche se situe dans le cadre du projet européen ASSIST-ME (Assess Inquiry in Science, Technology and Mathematics Education) et s’appuie sur un travail coopératif, de type DI-Formation, entre chercheurs, formateurs d’enseignants et enseignants de collèges et d’écoles primaires. Il s’agit plus particulièrement de concevoir, tester, évaluer et diffuser des outils permettant l’évaluation des compétences en jeu dans les ESFI. Le questionnement porte sur l’évaluation formative comme aide au professeur à réguler l’action des élèves, de manière à la rendre scientifique. Nous proposons un modèle de l’action scientifique de l’élève, ainsi qu’une description en quatre variables d’un ESFI en mathématiques. Au regard de ces deux modèles, nous analysons des données recueillies sur une séance de type « démarche d’investigation », expérimentée par cinq enseignants (6ème et CM2) et intégrant un outil d’évaluation formative.
Démarche d’investigation et problématisation en mathématiques et en SVT : des problèmes de démarcation aux raisons d’une union
Authors: Hersant Magali , Orange-Ravachol Denise
Published: June 2021

En France, les programmes d’enseignement récents de mathématiques, de sciences et de technologie promeuvent l’engagement des élèves de l’école et du collège dans des démarches d’investigation contribuant à l’appropriation de compétences communes. Comment est-il possible qu’une même démarche réunisse à la fois les mathématiques et les sciences ? Notre communication montre que les différences entre les disciplines pointées par l’institution (l’expérimentation, les modalités de validation) font problème. Elle étudie la possibilité de réunir ces disciplines en considérant la construction des savoirs qu’elles opèrent comme des problématisations.
La démarche d’investigation depuis la théorie anthropologique du didactique : les parcours d’étude et de recherche
Authors: Wozniak Floriane
Published: June 2021

Nous aborderons la démarche d’investigation comme la mise en œuvre d’une praxéologie dont l’objet est de construire une réponse à une question. Il s’agit alors de transformer le milieu de la situation adidactique – regardé comme « un bout de nature » dénué d’intention didactique – en une source d’informations, un média. Ce processus didactique, appelé dialectique des médias et des milieux en théorie anthropologique du didactique, fournit les matériaux à partir desquels la réponse peut être produite. Le schéma herbartien qui décrit la pédagogie de l’enquête propre aux parcours d’étude et de recherche peut alors être regardé comme une modélisation de la démarche d’investigation. Nous montrerons comment ce modèle permet ainsi d’envisager les conditions sur le milieu – relatives à la topogenèse, la mésogenèse et la chronogenèse – comme conditions du recours effectif à une démarche d’investigation.
Nouveau métier : enseignant dans le second degré. Récits de changements professionnels
Authors: Dozolme Sylvie , Ria Luc
Published: June 2021

En France, près de 20 % des professeurs stagiaires du second degré disposent d’un vécu professionnel hors système éducatif. Qui sont-ils ? Pourquoi ont-ils fait le choix de devenir enseignants ? Cette étude s’intéresse à la transition professionnelle vécue par ces futurs enseignants. Issus de métiers très différents (manutentionnaire, secrétaire, infirmière, commercial, ingénieur…), ils opèrent un changement professionnel conséquent. Le protocole de recherche mis en place analyse l’impact de ce vécu professionnel sur les pratiques du métier d’enseignant ainsi que les étapes et le ressenti de ces personnes face à une acculturation. Ce travail devrait donc fournir des éléments de réflexion pour comprendre comment se déroule l’acculturation d’anciens salariés d’entreprises privées lors de leur entrée dans le monde de l’éducation. Il permettra également d’appréhender comment ils vivent leur arrivée dans ce nouveau métier pour examiner ensuite s’il existe des typicalités de parcours conduisant à cette reprofessionnalisation.
Blockchain Towards Decentralized Digital Marketing
Authors: Erragcha Nozha , Babay Hanene
Published: June 2021

Blockchain is a decentralized digital technology that is growing and standing out in digital marketing. The potential use of blockchain technology will help affected companies create secure digital records and will also allow secure storage of data. During this chapter, the authors will try to explain the meaning of the concept of blockchain technology, its operating principle, as well as its different types and sectors of applications to make the relationship between blockchain technology and other emerging technologies such as big data, AI, and smart contracts and to review the positive impact of blockchain technology on the e-commerce sector and in particular on customer relationship management.
Design Family Health Management System Based on Ethereum Blockchain Interaction With MyEtherWallet Using Solidity
Authors: C. Devi Parameswari , M. Ilayaraja
Published: June 2021

A family health management system deals with a safe and secure way of managing family member health details such as illness diagnosis, treatment, medical prescriptions, medical reports, and life insurance policies. All health records are encrypted and stored in chronological order utilizing blockchain technology so that authenticity, integrity, security, and privacy of the records are safeguarded. All stages of medical treatment are documented and stored for ease of future reference by the family. This becomes very handy if a person changes doctors and/or relocates to some other place/country for varied reasons. All the necessary health reports are shared with the life insurance company so that insurance claims become hassle free, if applicable. Medicine details are cross-verified with the manufactures to avoid fake drugs. This chapter explores the compatibility of using ethereum with the interactive MyEtherWallet to implement the proposed model.
Determinants of Firm Performance in Automotive Industry
Authors: Hanaysha Jalal Rajeh , Saleh Isam , Hussain Suhaidah , Lee Khai Loon , Abu Bakar Zahari
Published: June 2021

This paper is centered towards examining whether innovation, social media marketing, and corporate social responsibility have any associations with firm performance in automotive sector. By reviewing the prior literature, it can be concluded that there are limited studies which focused on investigating the direct impacts of the above factors collectively on firm performance, particularly in automotive industry. Moreover, the performance of automotive industry in Malaysia has recently experienced slow growth. Therefore, a quantitative research method was employed for data collection and fulfilling the research objectives. In particular, the data were collected via survey instrument from many employees of automotive companies at the state of Pahang in Malaysia. The data was then anlayzed by SPSS Version 19 to verify and test the hypotheses. Overall, the outcomes revealed that innovation has a significant positive impact on firm performance. But the influence of social media marketing on firm performance was found insignificant. Finally, the outcomes showed that the practice of corporate social responsibility has a positive impact on firm performance.
Statistical Assessment of Ambient Assistive Techniques by Elders to Enhance Their Well Being From Fall Events
Authors: Ramanujam Elangovan , Padmavathi S.
Published: June 2021

The importance of fall detection techniques in the developing and developed nations due to the increase in elder population has been discussed in many studies. Their results encouraged many researchers and industries to design new assistive living products to enhance the wellbeing of elders. Meanwhile, no previous researches discussed the importance to involve the elders in their design. Due to this, the elders have less awareness and adaption towards those techniques. In this paper, elders were given a questionnaire to find out their attitude and awareness towards various ambient assistive techniques concerning fall detection. Results revealed that most of the elders see that presence of fall detection is very important. Moreover, there were significant differences between ambient assistive techniques. The study findings assess their nature and adaptability level by the elder and are important to researchers and industries for the design and implementation of ambient assistive techniques in the future.