bluuebunny/crossref_metadata_2025 huggingface dataset:
Weak and strong ties and its connection to experts' problem-solving styles in scaffolding students' PBL activities on social media
Authors: Abdullah Aznur Hajar , Neo Tse Kian , Low Jing Hong
Published: October 2021

Background: Studies have acknowledged that social media enables students to connect with and learn from experts from different ties available in the students’ personal learning environment (PLE). The inclusion of experts in formal learning activities through social media such as in scaffolding problem-solving activities helps students see the practicality of experts’ thinking in solving real-world problems. However, studies that evaluate experts’ problem-solving styles and how these influence the experts' thinking process in delivering the know-how to students on social media based on the ties that the students have with the experts in social media are scarce in the extant literature. The study aimed to explore the problem-solving styles that the experts portrayed on Facebook based on their ties with the students. 

Methods: This study employed a simultaneous within-subject experimental design which was conducted in three closed Facebook groups with 12 final year management students, six business experts, and one instructor as the participants. The experts were invited by the students from the weak and strong ties in their PLE. Hinging on the Theory of Fluid and Crystallised intelligence and the Strength of Weak Ties Theory, this study employed thematic analysis using the ATLAS.ti qualitative data analysis software to map the experts’ comments on Facebook.

Results:  The use of strong ties in combination with weak ties balances out the negative aspects of the business experts’ problem-solving styles.  All the experts used both fluid and crystallised intelligence in scaffolding the students’ learning; however, the degree of its usage correlated with the working experience of the experts.

Conclusion: The use of weak or strong ties benefited the students as it expedited their problem-solving tasks since the experts have unique expertise to offer depending on the degree of their working experiences and the proximity of the students’ relationship with the experts.
Academic entrepreneurial engagement for frugal innovation in higher education institutions: a systematic literature review
Authors: Toyin Ojo Oluwayomi , Dorasamy Magiswary , W. Migin Melissa , Jayabalan Jayamalathi , R Rajeswari , Tung Soon Seng
Published: October 2021

Higher education institutions (HEI) are faced with increasing challenges related to shrinking resources, high operation costs, the COVID-19 pandemic, decreasing student enrolment rates, and pressure to contribute to regional development and economic growth. To overcome such challenges, academics must move beyond their traditional functions of research and teaching and engage in entrepreneurial activities. Through engagement in entrepreneurial activities, academics can contribute to frugal innovation (FI) in private HEI (PHEI). The literature in this context emphasizes that academic entrepreneurial engagement (AEE) will lead to innovation, the identification of opportunities for new business ventures, financial rewards for institutions and academics, an impact on the economy, and the enhancement of social welfare. This study presents a systematic review of the literature and adopts the Transfield five-phase strategy to review the literature on AEE from the past two decades (2000–2020). A total of 1,067 papers on FI are obtained, only five of which focus on AEE. Moreover, papers related to AEE for FI are few. The study presents the research gaps, challenges, and potential factors for further research in this context. We conclude that FI for AEE in PHEI can be a game-changer for future sustainability. Moreover, we believe that the outcome of this review warrants further research.
Direct laser writing of liquid crystal elastomers oriented by a horizontal electric field
Authors: Carlotti Marco , Tricinci Omar , den Hoed Frank , Palagi Stefano , Mattoli Virgilio
Published: October 2021

Background: The ability to fabricate components capable of performing actuation in a reliable and controlled manner is one of the main research topics in the field of microelectromechanical systems (MEMS). However, the development of these technologies can be limited in many cases by 2D lithographic techniques employed in the fabrication process. Direct Laser Writing (DLW), a 3D microprinting technique based on two-photon polymerization, can offer novel solutions to prepare, both rapidly and reliably, 3D nano- and microstructures of arbitrary complexity. In addition, the use of functional materials in the printing process can result in the fabrication of smart and responsive devices.

Methods: In this study, we present a novel methodology for the printing of 3D actuating microelements comprising Liquid Crystal Elastomers (LCEs) obtained by DLW. The alignment of the mesogens was performed using a static electric field (1.7 V/µm) generated by indium-tin oxide (ITO) electrodes patterned directly on the printing substrates.

Results: When exposed to a temperature higher than 50°C, the printed microstructures actuated rapidly and reversibly of about 8% in the direction perpendicular to the director.

Conclusions: A novel methodology was developed that allows the printing of directional actuators comprising LCEs via DLW. To impart the necessary alignment of the mesogens, a static electric field was applied before the printing process by making use of flat ITO electrodes present on the printing substrates. The resulting microelements showed a reversible change in shape when heated higher than 50 °C.
A collection of narrative practices on cultural heritage with innovative technologies and creative strategies
Authors: López Salas Estefanía
Published: October 2021

The H2020 project rurAllure, “Promotion of rural museums and heritage sites in the vicinity of European pilgrimage routes” (2021-2023) aims to enrich pilgrims’ experiences with the creation of meaningful cultural products focused on the lesser-known heritage sites of rural areas that are not found on pilgrimage routes, but in their surroundings. One of the project goals is to create contents and narratives to be offered to pilgrims over successive days with the integration of state-of-the-art technology. This way, hidden rural heritage will be discoverable and pilgrims will have the opportunity to actively engage with rural places nearby, their local communities, identity, and culture. The latter will no longer be passive witnesses, but active participants in transnational networks of shared history and living heritage.  

The rurAllure project aims to develop a new concept of mobile guide for pilgrims that will present rural heritage sites and activities of interest along with information of transportation and accommodation to help movement from and back to pilgrimage routes, as well as cohesive narratives to be consumed along the way, focused on four pilots: literary heritage on the ways to Santiago de Compostela, thermal heritage and others on the ways to Rome, ethnographic heritage on the ways to Trondheim, and natural heritage on the ways to Csíksomlyó.  

To facilitate the pilots’ brainstorming in the creation of multimedia contents, we developed a review of narrative models on cultural heritage storytelling. In this paper, we present the results, a collection of 22 case studies we analyzed with a common structure, from which six distinctive groups of narrative practices emerge: sound-walks, wearable guides, context-aware games, simulations, digital exhibitions, and cultural wayfinding. All cases studies disrupt traditional notions of storytelling consumption and foster new relationships between people and places of interest that may lead to advancements in the pilgrimage context.
Features of Proverb Translation from the Standpoint of Communication and Linguoculturology
Authors: Abakumova Ol'ga , Gridasov Anton , Ivanishin Dmitriy
Published: October 2021

The paper deals with problems of translation of proverbs from position of communication science, difficulties of translating phraseological units and cognition-discourse paradigm in paremiology. Based on the scholars’ researches in listed areas of linguistics, the author analyzes an actualized Russian proverb in the text of fiction and its possible equivalents and analogues in English linguistic culture using cognition-discourse model of proverb’s sense actualization in the text, proposed by O.B. Abakumova.
Competence Compliance in the Formation of a Professional Portrait of a Future Specialist of the Communication Sphere
Authors: Semenova L.
Published: October 2021

The article discusses an urgent problem – the formation of a professional portrait of a university graduate in the field of communications and its compliance with the needs of the modern labour market. The purpose of the article is to present an analysis of the of the modern labour market requirements and the results of compliance control in the formation of a professional portrait of a future communication specialist. The definition of the compliance system and competency-based compliance is given. The challenges and main trends of the labour market have been identified. The requirements of employers for the competencies and skills of hard skills and soft skills are discussed, it has been proved that soft skills play a key role in the employment of specialists today. A foresight study of positions, professions and specializations in the field of communication was carried out and a forecast of the necessary competencies for them was made. The fundamental skills and competencies that determine the professional portrait of a specialist in the field of communication are highlighted. The competence-based compliance control procedure revealed weaknesses, threats, risks and problems that hinder the formation of a professional portrait of a future communication specialist.
Transformation of Communicative Interaction in the Space of Information and Telecommunication Networks
Authors: Konopleva A.
Published: October 2021

The current stage in the development of communication science is a turning point. It is in the current conditions of socio-cultural destabilization, changes in the way of life, due to the challenges of the era, that the way of further development of communication is being determined. The ambivalence and inconsistency of modernity has formed a solid foundation for the development of dialectical contradictions in the field of communication, which, first of all, are caused by the rapid formation of the information space and the transition to the path of digitalization, without which not only communication is impossible, but also existence in the digital era in general. The most important principle of communication in such conditions becomes variability, where the invariant and the variant are closely related, giving priority to the latter. Variability refers to the changeable part of communication, ensuring its modernity and timeliness, invariance guarantees a connection with tradition and continuity. The article reveals the key aspects of the manifestation of the variability of communicative interaction in the space of information and telecommunication networks.
Concept for legal and economic changes to the pension insurance of farmers
Authors: Podstawka Marian , Podstawka Łukasz
Published: October 2021

Motivation: The study presents the current conditions for receiving the agricultural pension from the Agricultural Social Insurance Fund (KRUS) and the rules for calculating it. They are organised in such a way that the longer the insurance period of the insured person, the lower the so-called supplementary part of their pension than in the case of the insured person with the shorter insurance period. In addition, since 2011, persons insured in KRUS and having farms with an area of more than 50 ha of utilised agricultural area have been obliged to pay higher amounts for their pension insurance which do not have any impact on the level of benefits received. Farmers who also run business activities are treated by the insurance legislation in a similar manner. Hence, there is a need to make changes to the legal and economic regulations in KRUS, which would reflect the new conditions of management in Poland after 1989 and the solutions existing in the Social Insurance Institution (ZUS).

Aim: The objective of the study is to identify the regulations related to agricultural pension insurance which are inadequate in relation to the existing conditions of management in our country and to the solutions existing in ZUS. In addition, the objective of the paper is to propose changes to the insurance regulations of KRUS concerning the rules for calculating pensions and the definition of special branches of agricultural production. Also, the effects of these changes from the viewpoint of the insured person have been presented.

Results: The result of the study is a proposal for changes to the rules for calculating pensions for farmers insured in KRUS. The paper proposes to split the pension from KRUS into three parts: the contribution part, supplementary part and capital part. The proposals presented differentiate the pension amount depending on the insurance period and additionally paid contributions. The paper proposes to extend the special branches of agricultural production and to adopt income they generate at the level of 50% of the average salary in the national economy or at the level of the minimum wage as a criterion for access to insurance in KRUS.
Exploring the benefits and barriers to Nordic walking in people with Parkinson's disease: a feasibility study
Authors: McCracken Sarah , Logan Pip , Anthony Kevin , Parr John
Published: October 2021

Background:

Nordic walking (NW) has shown promising outcomes for people with Parkinson's disease (PwP).

Aims:

To explore the feasibility of the implementation of NW programmes for PwP in the NHS.

Methods:

A literature review and feasibility study were conducted. PwP joined an 8-week NW programme. Attendance and measures of mobility (Timed Up and Go (TUG), 10-metre walk test (10MWT) and quality of life (QoL) (PD non-motor questionnaire) were recorded pre- and post-intervention. Barriers, facilitators and cost were recorded.

Findings:

Eight studies indicated that NW is superior to walking and flexibility/relaxation exercise, with improvements in postural stability and gait. Nine of 10 participants completed the intervention with improvements in mobility (0.16 seconds faster (TUG), 1.27 seconds faster (10MWT) and QoL (better sleep, pain management, constipation, mood, exercising outside) after the intervention. Cost was recorded as £6.50 per participant per session, with no adverse events.

Conclusions:

NW programmes can be safely delivered in the NHS, in partnership with British Nordic walking.
Investigation of multipass Yb-doped fiber amplifiers
Authors: Želudevičius Julijanas , Dubosas Giedrius , Regelskis Kęstutis
Published: October 2021

We investigated both numerically and experimentally single-pass, two-pass, and four-pass Yb-doped core-pumped fiber amplifier configurations and compared their performance with respect to achievable pump-to-signal conversion efficiency. Despite numerical calculations predicting the highest efficiency in the four-pass setup, an experimentally highest conversion efficiency of 77% was achieved in the two-pass setup and only 49% in the four-pass setup. Reduced performance of the experimental four-pass fiber amplifier configuration was caused by excess coupling losses, which do not impose a fundamental limitation. At the same time, the four-pass fiber amplifier configuration demonstrated advantageous characteristics of high gain using shorter length of active fiber and lower noise figure compared with other tested configurations.
Efficient polarization splitter-rotator on thin-film lithium niobate
Authors: Wang Xuanhao , Pan An , Li Tingan , Zeng Cheng , Xia Jinsong
Published: October 2021

Recently, thin-film lithium niobate coherent modulators have emerged as a promising candidate for the next generation coherent communication system. High performance polarization splitter-rotators (PSRs) are essential to further achieve dual polarization coherent modulators. Here we present a PSR on the lithium niobate on insulator (LNOI) platform with the measured insertion loss less than 1 dB, extinction ratio exceeding 26.6 dB and 19.6 dB for TE0 and TM0 modes, working bandwidth of 1520–1580 nm and total length of 440 µm. In addition, a relatively large fabrication tolerance for waveguide width is also proved. This demonstrated PSR can find its potential application in polarization-division multiplexing (PDM) optical transmitter based on LNOI.
Broadly tunable mid-infrared femtosecond pulses directly generated by an optical parametric amplifier
Authors: Villa Andrea , Ross Aaron M. , Gotti Riccardo , Lamperti Marco , Scotognella Francesco , Cerullo Giulio , Marangoni Marco
Published: October 2021

We introduce an optical parametric amplifier, pumped by an amplified femtosecond Yb:KGW laser, which directly generates broadly tunable mid-infrared (MIR) pulses, covering the whole vibrational spectrum from 3 to 10 µm. The avoidance of the traditional difference-frequency generation stage to access the MIR range simplifies the setup while enabling high conversion efficiencies. The two-stage design employs in the second stage either periodically poled lithium niobate, optimized for the CH/OH stretching region (3-5 µm) or LiGaS2, which allows extending the tunability to the fingerprint region (up to 10 µm). We anticipate applications of this versatile source to ultrafast vibrational spectroscopy and infrared microscopy.
Multicellular spatial model of RNA virus replication and interferon responses reveals factors controlling plaque growth dynamics
Authors: Aponte-Serrano Josua O. , Weaver Jordan J. A. , Sego T. J. , Glazier James A. , Shoemaker Jason E.
Published: October 2021

Respiratory viruses present major public health challenges, as evidenced by the 1918 Spanish Flu, the 1957 H2N2, 1968 H3N2, and 2009 H1N1 influenza pandemics, and the ongoing severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic. Severe RNA virus respiratory infections often correlate with high viral load and excessive inflammation. Understanding the dynamics of the innate immune response and its manifestations at the cell and tissue levels is vital to understanding the mechanisms of immunopathology and to developing strain-independent treatments. Here, we present a novel spatialized multicellular computational model of RNA virus infection and the type-I interferon-mediated antiviral response that it induces within lung epithelial cells. The model is built using the CompuCell3D multicellular simulation environment and is parameterized using data from influenza virus-infected cell cultures. Consistent with experimental observations, it exhibits either linear radial growth of viral plaques or arrested plaque growth depending on the local concentration of type I interferons. The model suggests that modifying the activity of signaling molecules in the JAK/STAT pathway or altering the ratio of the diffusion lengths of interferon and virus in the cell culture could lead to plaque growth arrest. The dependence of plaque growth arrest on diffusion lengths highlights the importance of developing validated spatial models of cytokine signaling and the need for in vitro measurement of these diffusion coefficients. Sensitivity analyses under conditions leading to continuous or arrested plaque growth found that plaque growth is more sensitive to variations of most parameters and more likely to have identifiable model parameters when conditions lead to plaque arrest. This result suggests that cytokine assay measurements may be most informative under conditions leading to arrested plaque growth. The model is easy to extend to include SARS-CoV-2-specific mechanisms or to use as a component in models linking epithelial cell signaling to systemic immune models.
OutbreakFlow: Model-based Bayesian inference of disease outbreak dynamics with invertible neural networks and its application to the COVID-19 pandemics in Germany
Authors: Radev Stefan T. , Graw Frederik , Chen Simiao , Mutters Nico T. , Eichel Vanessa M. , Bärnighausen Till , Köthe Ullrich
Published: October 2021

Mathematical models in epidemiology are an indispensable tool to determine the dynamics and important characteristics of infectious diseases. Apart from their scientific merit, these models are often used to inform political decisions and interventional measures during an ongoing outbreak. However, reliably inferring the epidemical dynamics by connecting complex models to real data is still hard and requires either laborious manual parameter fitting or expensive optimization methods which have to be repeated from scratch for every application of a given model. In this work, we address this problem with a novel combination of epidemiological modeling with specialized neural networks. Our approach entails two computational phases: In an initial training phase, a mathematical model describing the epidemic is used as a coach for a neural network, which acquires global knowledge about the full range of possible disease dynamics. In the subsequent inference phase, the trained neural network processes the observed data of an actual outbreak and infers the parameters of the model in order to realistically reproduce the observed dynamics and reliably predict future progression. With its flexible framework, our simulation-based approach is applicable to a variety of epidemiological models. Moreover, since our method is fully Bayesian, it is designed to incorporate all available prior knowledge about plausible parameter values and returns complete joint posterior distributions over these parameters. Application of our method to the early Covid-19 outbreak phase in Germany demonstrates that we are able to obtain reliable probabilistic estimates for important disease characteristics, such as generation time, fraction of undetected infections, likelihood of transmission before symptom onset, and reporting delays using a very moderate amount of real-world observations.
The accuracy of diagnostic indicators for coeliac disease: A systematic review and meta-analysis
Authors: Elwenspoek Martha M. C. , Jackson Joni , O’Donnell Rachel , Sinobas Anthony , Dawson Sarah , Everitt Hazel , Gillett Peter , Hay Alastair D. , Lane Deborah L. , Mallett Susan , Robins Gerry , Watson Jessica C. , Jones Hayley E. , Whiting Penny
Published: October 2021

Background

The prevalence of coeliac disease (CD) is around 1%, but diagnosis is challenged by varied presentation and non-specific symptoms and signs. This study aimed to identify diagnostic indicators that may help identify patients at a higher risk of CD in whom further testing is warranted.

Methods

International guidance for systematic review methods were followed and the review was registered at PROSPERO (CRD42020170766). Six databases were searched until April 2021. Studies investigating diagnostic indicators, such as symptoms or risk conditions, in people with and without CD were eligible for inclusion. Risk of bias was assessed using the QUADAS-2 tool. Summary sensitivity, specificity, and positive predictive values were estimated for each diagnostic indicator by fitting bivariate random effects meta-analyses.

Findings

191 studies reporting on 26 diagnostic indicators were included in the meta-analyses. We found large variation in diagnostic accuracy estimates between studies and most studies were at high risk of bias. We found strong evidence that people with dermatitis herpetiformis, migraine, family history of CD, HLA DQ2/8 risk genotype, anaemia, type 1 diabetes, osteoporosis, or chronic liver disease are more likely than the general population to have CD. Symptoms, psoriasis, epilepsy, inflammatory bowel disease, systemic lupus erythematosus, fractures, type 2 diabetes, and multiple sclerosis showed poor diagnostic ability. A sensitivity analysis revealed a 3-fold higher risk of CD in first-degree relatives of CD patients.

Conclusions

Targeted testing of individuals with dermatitis herpetiformis, migraine, family history of CD, HLA DQ2/8 risk genotype, anaemia, type 1 diabetes, osteoporosis, or chronic liver disease could improve case-finding for CD, therefore expediting appropriate treatment and reducing adverse consequences. Migraine and chronic liver disease are not yet included as a risk factor in all CD guidelines, but it may be appropriate for these to be added. Future research should establish the diagnostic value of combining indicators.
New constructions of equality test scheme for cloud-assisted wireless sensor networks
Authors: Zhu Huijun , Xie Dong , Ahmad Haseeb , Hasan Abdullah Hasan Naji
Published: October 2021

Public key encryption with equality test enables the user to determine whether two ciphertexts contain the same information without decryption. Therefore, it may serve as promising cryptographic technique for cloud-assisted wireless sensor networks (CWSNs) to maintain data privacy. In this paper, an efficient RSA with equality test algorithm is proposed. The presented scheme also handles the attackers based on their authorization ability. Precisely, the proposed scheme is proved to be one-way against chosen-ciphertext attack security and indistinguishable against chosen ciphertext attacks. Moreover, the experimental evaluations depict that the underlying scheme is efficient in terms of encryption, decryption, and equality testing. Thus, this scheme may be used as a practical solution in context of CWSNs, where the users may compare two ciphertexts without decryption.
The Place of Flawed Pleasures in a Good Life. A Discussion of Plato’s Philebus
Authors: Szaif Jan
Published: October 2021

The Philebus describes the “good” that enables human eudaimonia as a “mixture” in which cognitive states have to be combined with certain types of pleasure. This essay investigates how the various senses of falsehood that Plato distinguishes are applied to the question of the hedonic “ingredients” of the good. It argues that his theory allows for the inclusion of certain virtuous pleasures that are deficient with respect to truth: either qua “mixed pleasures” lacking in truth (genuineness) on account of the compresence of their opposite, pain, or because they are based on mistaken anticipations arising in the pursuit of virtuous and reasonable goals.
THE ROLE OF CHINESE MIGRANTS IN ACCELERATING BORDER CITY DEVELOPMENT
Authors: Wiratri Amorisa
Published: October 2021

The migration of Chinese labours to Southeast Asian countries has become a huge issue lately. This study examines whether all Chinese migrants bring negative impacts to other countries. This research argues that Chinese migrants have a compelling part in support of development in the border area, particularly economic development. This research was conducted in Mong Cai, a border city between Vietnam and China. Using qualitative approach as methodology, the data are collected through observation, in-depth interviews, and review of the literature. The result found that Chinese migrants bring advantages in Mong Cai city, including support city development and improve the local economy.
Age-Specific Rates and Time-Courses of Gastrointestinal and Nongastrointestinal Complications Associated With Screening/Surveillance Colonoscopy
Authors: Ladabaum Uri , Mannalithara Ajitha , Desai Manisha , Sehgal Maanek , Singh Gurkirpal
Published: October 2021

Introduction:

The rates of serious cardiac, neurologic, and pulmonary events attributable to colonoscopy are poorly characterized, and background event rates are usually not accounted for.

Methods:

We performed a multistate population-based study using changepoint analysis to determine the rates and timing of serious gastrointestinal and nongastrointestinal adverse events associated with screening/surveillance colonoscopy, including analyses by age (45 to <55, 55 to <65, 65 to <75, and ≥75 years). Among 4.5 million persons in the Ambulatory Surgery and Services Databases of California, Florida, and New York who underwent screening/surveillance colonoscopy in 2005–2015, we ascertained serious postcolonoscopy events in excess of background rates in Emergency Department (SEDD) and Inpatient Databases (SID).

Results:

Most serious nongastrointestinal postcolonoscopy events were expected based on the background rate and not associated with colonoscopy itself. However, associated nongastrointestinal events predominated over gastrointestinal events at ages ≥65 years, including more myocardial infarctions plus ischemic strokes than perforations at ages ≥75 years (361 [95% confidence intervals {CI} 312–419] plus 1,279 [95% CI 1,182–1,384] vs 912 [95% CI 831–1,002] per million). At all ages, the observed-to-expected ratios for days 0–7, 0–30, and 0–60 after colonoscopy were substantially >1 for gastrointestinal bleeding and perforation, but minimally >1 for most nongastrointestinal complications. Risk periods ranged from 1 to 125 days depending on complication type and age. No excess postcolonoscopy in-hospital deaths were observed.

DISCUSSION:

Although crude counts substantially overestimate nongastrointestinal events associated with colonoscopy, nongastrointestinal complications exceed bleeding and perforation risk in older persons. The inability to ascertain modifications to antiplatelet therapy was a study limitation. Our results can inform benefit-to-risk determinations for preventive colonoscopy.
Строгое решение задачи о состоянии линейно-упругого изотропного тела под воздействием полиномиальных объемных сил
Authors: Пеньков Виктор Борисович , Penkov Viktor Borisovich , Левина Любовь Владимировна , Levina Lyubov , Новиков Евгений Александрович , Novikov Evgeny Aleksandrovich
Published: October 2021

При решении краевых задач о построении напряженно-деформированного состояния линейно-упругого изотропного тела важным шагом является отыскание внутреннего состояния, порожденного силами, распределенными по занятой телом области. В классическом варианте существует численный способ оценки состояния в любой точке тела, базирующийся на сингулярно-интегральном представлении Чезаро.
В варианте консервативных объемных сил возможно выписывание решений в аналитической форме.
При произвольных регулярных воздействиях механической и иной физической природы силы потенциальными не являются и подходы Папковича--Нейбера и Аржаных--Слободянского оказываются бессильными.
Кроме этого, решение нелинейных задач эластостатики средствами метода возмущений, а также использование при решении задач для исследования многополостных тел алгоритма Шварца приводят к необходимости решения последовательности линейных задач. При этом в обязательном порядке зарождаются фиктивные объемные силы, имеющие, как правило, полиномиальный характер.
Разработанный авторами ранее метод оценки напряженно-деформированного состояния тела, вызванного воздействием полиномиальных объемных сил, представляемых в декартовых координатах, получил развитие.
Внутреннее состояние восстанавливается в строгом соответствии с силами, статически воздействующими на односвязное ограниченное линейно-упругое тело.
Предложены и описаны эффективный метод построения решения и алгоритм его компьютерной реализации. Продемонстрированы тестовые расчеты.
Выполнен анализ состояния шара, находящегося под воздействием суперпозиции объемных сил различного характера при различных соотношениях параметров, подчеркивающих уровень влияния этих факторов.
Результаты оформлены графически. Сделаны следующие выводы:
а) обоснована процедура выписывания напряженно-деформированного состояния от объемных сил, представляемых полиномами от декартовых координат;
б) алгоритм реализован в вычислительной системе Mathematica и проведено тестирование на многочленах высокого порядка;
в) проведен анализ квазистатического состояния линейно-упругого изотропного шара, подверженного воздействию сил гравитации и инерции при различных сочетаниях параметров, отвечающих вариантам медленного, быстрого, компенсационного (инерционные силы соразмерны с гравитационными) вращений.
Отмечены перспективы развития нового подхода на класс ограниченных и неограниченных тел, содержащих произвольное число полостей.
Mobilidade docente e identidade profissional
Authors: Rodrigues Mário Carlos , Branco Maria Luísa
Published: October 2021

Os professores portugueses dos ensinos básico e secundário estão sujeitos a um processo de mobilidade, imposto por um modelo de colocação centralizado nos serviços do Ministério da Educação. O presente estudo centra-se nas implicações da mobilidade na formação e construção da identidade profissional do professor. Para a concretização deste propósito, optámos por uma abordagem qualitativa, numa perspetiva fenomenológica, tendo por base a realização de entrevistas semiestruturadas a um conjunto de professores com um historial de mobilidade. Mediante a análise de conteúdo das entrevistas, concluímos que, perante uma situação de mobilidade frequente, os professores experimentam sentimentos e emoções que, associados à precariedade e instabilidade vivida, são geradores de mal-estar, com reflexos na profissionalidade. A mobilidade tem impacto na motivação pessoal e profissional dos professores; no desempenho profissional; na relação com a comunidade; no compromisso com os projetos educativos e no desenvolvimento profissional. Os professores revelam alguma frustração e algum desencanto em relação à profissão, resultante da mobilidade, mas também em relação a outros aspetos que afetam a escola, mantendo, no entanto, o seu profissionalismo. Os efeitos da mobilidade apontados são suficientes para se defender uma alteração das políticas de colocação dos professores no sentido de uma maior estabilidade.
Lesson Learned from UI GreenMetric World University Rankings Network Participants during The First Virtual Workshop
Authors: Fitri Sari Riri , Hussaini Windiatmaja Jauzak , Hikmah Ramadhianti Sabrina
Published: October 2021

UI GreenMetric World University Rankings is a non-profit initiative from the University of Indonesia that ranks universities around the world based on their commitment and actions towards sustainability. During the ranking process, many universities’ performance in UI GreenMetric has progressed. To increase the performance of each university in UI GreenMetric, universities need to share their sustainability achievement and current condition in a forum. These universities can share information about the implementation of sustainability policies in each university through the International Workshop on UI GreenMetric World University Rankings. Due to the ongoing pandemic and our concerns that the event could ease the spread of coronavirus, this event was also being held online. We evaluate the workshop to capture the experience gained in organizing the event. We conclude that online workshops such as IWGM are conductible, although we also understand that every event is unique and new lessons can be learned from each new event
Dostoevsky as a Tourist (1862): The Discovery of Europe or a Secret Visit to Iskander?
Authors:   Petrozavodsk State University, Volgin Igor
Published: October 2021

Dostoevsky's first foreign trip in the summer of 1862 has both visible and hidden aspects. Having visited the "land of holy miracles," the author of “Winter notes on summer impressions " focuses his attention on two world capitals. Both cities are symbols of the victorious bourgeois civilization: its material (London) and moral (Paris) triumphs. It is with this "brave new world" that Russia’s potential historical prospects are correlated. At the same time, England acts as a "testing ground" for some future novel collisions, and France — as an example of a police state. The question is raised about the formation of Dostoevsky's comprehensive concept of the West. The work carefully reconstructs the previously little-known details of Dostoevsky's secret visit to the London exile — A. I. Herzen, the subject and nature of their communication, the mutual interest they demonstrated. For the first time, this meeting is examined in a broad historical context-in close connection with the events in Russia. The latter include the St. Petersburg fires, the "Young Russia" proclamation, the arrests of D. I. Pisarev and N. G. Chernyshevsky (and with Dostoevsky’s visit to the latter on the eve of his departure abroad), a police search in Yasnaya Polyana, the suspension of the Contemporary and Russian Word, and the upcoming repression against Time. All of the above are connected by a single "typographic plot" (attempts to create an uncensored free press), which was founded by Dostoevsky (1849) and realized by Herzen in 1853. based on unknown archival documents, the details of Dostoevsky's search on the Russian border (Verzhbolovo) after his return from Europe, the sealing of his papers and the subsequent interrogation at the Investigative Commission in St. Petersburg are examined.
SOME PHYSICAL PROCESSES IN THE APPLICATION OF THE ELECTRODYNAMIC METHOD OF METAL PROCESSING
Authors:   Institute of Electrodynamics National Academy of Sciences of Ukraine, Vasetsky Yu.M. , Kondratenko I.P. ,   Institute of Electrodynamics National Academy of Sciences of Ukraine
Published: October 2021

On the basis of the developed analytical mathematical model of non-stationary process of local electrodynamic treatment of metal structures, especially welded joints, and estimation of the main dynamic, electrophysical and thermal characteristics of the process are considered. The characteristics of the motion of the electrode, the distribution of the pulse current in the metal plate, the heating of the metal are found and analyzed. The conclusion about the possibility of realization of devices with simultaneous supply of current pulses of necessary parameters on the shock electromagnetic element and through an electrode to the metal plate to achieve the effect of electroplasticity is made. References 19, figures 9, tables 2.
MINIMIZING THE EFFECT OF SATURATION OF HIGH-VOLTAGE CURRENT TRANSFORMERS ON THE ACCURACY OF THREE-PHASE PRIMARY MEASUTING CHANNELS WITH DIGITAL OUTPUT
Authors:   Institute of Electrodynamics National Academy of Sciences of Ukraine, pr. Peremohy, 56, Kyiv, 03057, Ukraine, Pankiv V. , Tankevych Ye. ,   Institute of Electrodynamics National Academy of Sciences of Ukraine, pr. Peremohy, 56, Kyiv, 03057, Ukraine, Tankevych S. ,   DTEK Grids LLC, Khokhlovych Family street, 8, LETTER 20D, Kyiv, 004119, Ukraine
Published: October 2021

The classification is carried out and the characteristics, capabilities and disadvantages of the known methods of programmed correction of the output current of a single-phase primary measuring channel (PMC) of the current are determined. A discretized model of short-circuit current (SCC) is proposed. A method and an algorithm for increasing the accuracy of a three-phase current PMC in transient modes of electric power systems (EPS) under the condition of saturation of the magnetic circuits of its phase current transformers have been developed. The reliability of the developed method is confirmed by simulation of the PMC output current under the condition of phase-to-phase short-circuit of phases A and B without correction and with correction of its phase currents. It is shown that the developed method makes it possible to reduce the total error of the PMC in the transient modes of the EES under the condition of saturation of the magnetic circuits of the CT from 70-90% to 6-15%. References 47, figures 6, table 1.
A sketch of Akum (Southern Jukunoid)
Authors: Kempf Viktoria , Prischnegg Tamara
Published: October 2021

This article presents data on the little researched Southern Jukunoid language Akum which is spoken in five villages of the Cameroon-Nigerian border area. Akum shows the typical Benue-Congo syllable structure (CV, CVC) as well as typical sounds of the Benue-Congo consonant inventory (double and secondary articulation). As is known from other Southern Jukunoid languages, only the consonants r, b, g, and nasals are permitted in word-final position and – because they are unreleased – the distinction voiced/voiceless is neutralized. The number and qualities of phonemically distinct vowels remains debatable. Concerning the nominal morphology, the Akum nominal prefix system is reduced in several aspects compared to its Southern Jukunoid relatives: it only has a set of 4 different nominal prefixes which are vocalic in form and it shows only marginal agreement on adjectives. The quinary numeral system and SVO basic word order are similar to its Southern Jukunoid relatives Bezen, Yukuben and Kuteb.
Діагностика впливу інституційного сектору домогосподарств на сталий розвиток економіки України
Authors: Нікішина О. В.
Published: October 2021

Стаття присвячена обґрунтуванню методичного забезпечення діагностики впливу сектору до-машніх господарств на сталий розвиток національної економіки у координатах Цілей сталого розвитку 1,2, 6, 7, 10, 12. Наголошено, що даний методичний базис є складовою загальної методології діагностикидомінант інвестиційно-інноваційної політики природокористування національної економіки. Доповненобазові функції домогосподарств у ринковій економіці екологічною та соціальною функціями. Особливіс-тю авторського методичного забезпечення є інтеграція до національної системи індикаторів сталого ро-звитку низки секторальних показників, які дозволяють діагностувати тенденції сталого розвитку секторудомашніх господарств. На основі розроблених методичних положень проведено діагностику впливу ін-ституційного сектору домогосподарств на сталий розвиток економіки України за 2015-2019 рр., що до-зволило визначити місце і роль даного сектору у впровадженні Цілей сталого розвитку. На підставі ре-зультатів діагностики обґрунтовано головні тенденції і проблеми сталого розвитку сектору домогоспо-дарств, прикладне значення методичного забезпечення для побудови системи багаторівневого моніто-рингу Цілей сталого розвитку в Україні.
Аналіз обігу зернових та виробництва борошномельно-круп’яної продукції в Україні
Authors: Полонська О. М. , Солошонок А. Л. , Некова Г. П.
Published: October 2021

Висвітлено стан надходження і перероблення зернових та зернобобових культур на підприєм-ствах, що займаються їхнім зберіганням і переробленням, за перше півріччя 2021 року всього по Укра-їні та в регіональному зрізі. За даний період проаналізовано обсяги та середні ціни реалізації основнихзернових та зернобобових культур сільськогосподарськими підприємствами. Сформовано в таблиці іпроаналізовано надходження основних зернових культур на переробні підприємства та середні ціни їхкупівлі всього по Україні та регіонах. Проведено аналіз щодо загального обсягу перероблених зерно-вих і зернобобових за основними культурами (пшениця, кукурудза, ячмінь) та за основними продукта-ми (борошно, крупа, комбікорм). Проаналізовано обсяги виробництва основних видів борошномельно-круп’яної продукції та динаміку виробництва борошна і круп. У цілому розкрито специфічні проблемиборошномельно-круп’яної галузі та шляхи їх вирішення. Також наведено рейтинг Топ-10 провіднихвиробників борошна України.
Сучасні аспекти фінансового аналізу оборотних активів підприємства
Authors: Купріна Н. М. , Ступницька Т. М. , Антонюк О. П. , Величко О. М.
Published: October 2021

Ефективне функціонування будь-якого підприємства в сучасних умовах не можливе без ефек-тивного управління його капіталом, який вкладено в його оборотні активи. Оборотний капітал повиненмати достатню швидкість обороту та потребує постійному моніторингу та аналізу, що сприяє ефектив-ному його використанню та управлінню, та потребує проведення якісного його фінансового аналізу.В статті проведено дослідження теоретичних та практичних аспектів фінансового аналізу обо-ротних активів в сучасних умовах функціонування підприємств. Показано, що детальний аналіз важ-ливих елементів оборотних активів дозволить проводити постійний моніторинг за їх станом, структу-рою та динамікою, що буде спряти ефективному управлінню ними та перешкоджати відволікання обо-ротного капіталу з обороту підприємства та процесу нормального фінансування його діяльності. Томуважливими етапами аналізу оборотних активів, на нашу думку, є й розрахунок в динаміці фінансовогоциклу підприємства й фінансовий аналіз відносних показників, які характеризують фінансову стійкістьпідприємства та ліквідність його балансу, що має особливе значення для ефективногофункціонування підприємства, залучення інвестицій та розвитку діяльності, та для розрахунку якихвикористовують або показники оборотних активів та власних оборотних коштів (активів).
Система забезпечення екологічної безпеки промислових підприємств в умовах сталого розвитку економіки
Authors: Ніколюк О. В.
Published: October 2021

У статті визначені наукові положення щодо формування структури системи забезпечення еколо-гічної безпеки промислових підприємств в умовах сталого розвитку економіки за рахунок її декомпозиціїна підсистеми, яким притаманні відповідні властивості, принципи, завдання та інструменти функціону-вання. У результаті дослідження встановлено, що екологічна безпека промислових підприємств в умо-вах сталого розвитку економіки і його суб’єкти формують складну систему, стан якої багато в чому ви-значає рівень забезпеченості екологічною безпекою продукції промислового виробництва. Виокремлен-ня складових системи забезпечення екологічної безпеки промислових підприємств в умовах сталого ро-звитку економіки дозволило сформувати власне бачення її природи як процесу, що орієнтується на ви-користання різноманітних методів та основних способів національного господарювання, що одночаснозапобігають виникненню негативних екологічно безпечних явищ у промисловому виробництві через вті-лення новітніх екологічно безпечних, ресурсо- та енергоощадних техніки і технологій, інноваційних роз-робок у поєднанні з розвитком еколого-економічної освіти, суспільного мислення й об’єктивної поведінки.
Екологізація готелів як напрям розвитку готельно- ресторанного бізнесу
Authors: Тітомир Л. А. , Коротич О. М. , Халілова-Чуваєва Ю. О.
Published: October 2021

Екоготелі – є перспективним напрямом розвитку індустрії гостинності. Південний регіон Украї-ни володіє всіма необхідними ресурсами для створення екоготелів. В статті обґрунтована розробкаконцепції та проектування готелю екологічного спрямування. Попит споживачів на екологічні послугирозміщення значно переважає пропозицію. Досліджуються можливі шляхи виконання критеріїв міжна-родної програми Green Key для можливого подальшого отримання сертифікату екологічного засобурозміщення. Розглянуті особливості проектування готелю із використанням сучасних будівельнихенергоефективних технологій. Для контролю та зменшення споживання води пропонуються системиінтелектуального управління та інші заходи скорочення витрат. В готелях південних регіонів доцільновикористовувати сонячну енергію, яку пропонується залучити для нагрівання води за допомогою тер-мосифонних геліосистем. В екоготелі необхідно правильно поводитись з відходами, розподіляти таповторно перероблювати їх. Харчові відходи пропонується компостувати та використовувати в якостідобрив. Частина відходів може відійти компанії з переробки. Для надання харчування пропонуєтьсязаклад локальної кухні, для якого можна використовувати продукцію місцевих фермерів.