bluuebunny/crossref_metadata_2025 huggingface dataset:
COMO FAZER PESQUISAS CIENTÍFICAS NA ESCOLA? UM GUIA PARA PROFESSORES
Authors: Ferrari Carlos Kusano Bucalen
Published: April 2020

Devido à escassez na formação científica de professores, o presente artigo tem como objetivo revisar brevemente conceitos gerais da pesquisa científica para educadores e professores. Além de discutir a diferença entre ciência e senso comum, ciência básica e aplicada, como classificar um projeto de pesquisa, que fontes de informação científica utilizar e definir o problema de pesquisa, o presente trabalho serve como guia para o desenvolvimento de projetos de pesquisa e trabalhos monográficos acadêmicos em qualquer área do conhecimento (monografias de conclusão de curso, dissertações e teses). É fundamental que a pesquisa científica seja incorporada no cotidiano escolar e na formação continuada de educadores e professores, para que possam ser fomentados os avanços necessários ao conhecimento humano e a derrocada do senso comum e de informações falsas.
Vinte vezes no ar...
Authors: Silva Lincoln Tavares
Published: April 2020

Querid@s leitores, nossa Edição nº 20, coincide com o ano de 2020, e sobre ela podemos dizer que o contexto sempre nos importa. Afinal estamos no CAp-UERJ, instituição que em abril deste ano comemora seus 63 anos de existência. Ao longo de suas décadas, a escola pública Instituto de Aplicação Fernando Rodrigues da Silveira vivenciou o consolidar de práticas de ensino, pesquisa, extensão e cultura que ampliaram sua atuação como polo de formação docente e como espaço de promoção de práticas pedagógicas que se buscam, cada vez mais, plurais e inclusivas. Sendo assim, nada mais coerente que uma edição da Revista e-Mosaicos voltada a contemplar tais diferenças e diversidades contextualizadas. Nosso caminhar pelos artigos tenta revelar tais pluralidades e convidar os leitores nesta caminhada.
Fenomenologia de Eros e de Afrodite em Safo
Authors: Araújo Fabíola Menezes
Published: April 2020

Safo tece palavras que nascem como sinais enviados pelos deuses: é por permitir a tecitura de Afrodite (Ἀφροδίτα), tecelã de ardis (δολόπλοκε), que o Deus Eros é desejado e invocado constantemente em suas canções. Evocando-os a poeta vai contra o senso-comum grego, para quem estes deuses poderiam trazer apenas destruição, e nos permite pensar a superação da metafísica por um retorno à Grécia diferente do levado a cabo até hoje pela retórica de pensadores brancos. Aqui terá palavra uma mulher possivelmente negra. Não se furtará a extraordinária poeta a falar da morte (tanatos) que surge em meio à totalidade (panta), como advindas de um Deus, o amor, como quem, ao se realizar, realiza também a forma (eidos) e a justiça (dike) divinas.  Palavras-chave: Afrodite; Eros, Safo, morte, totalidade.
Haddenham Comfiwave: a unique compression device for lymphoedema treatment
Authors: Phillips Natalie , Lawrance Sue
Published: April 2020

Compression therapy is the mainstay of treatment in venous and lymphatic diseases. Optimisation of compression therapy is not a new concept, but, in the UK, the use of 24-hour compression therapy as part of the maintenance phase of treatment has not been standard practice and, until recently, has only been adopted by certain specialist centres. One such modality in the process of optimisation is the use of products that are classed as ‘reduced compression’ or ‘night-time garments’. These are not traditional flat- or circular-knit garments but are made of various components to include foam and, more recently, knitted cotton fabrics. Haddenham Comfiwave is a new product that has recently been brought to market and does not feature in the literature reviewed. Although a new unique product in its own right, it has been demonstrated to fit within the common groups of products discussed.
High-speed and robust infrared-guiding multiuser eye localization
system for autostereoscopic display
Authors: Li Xicai , Wu Qinqin , Xiao Bangpeng , Liu Xuanyi , Xu Chen , Li Xueling , Xu Bin , Wang Yuanqing
Published: April 2020

In order to localize the viewers’ eyes, a high-speed and robust
infrared-guiding multiuser eye localization system was fabricated in
this paper for a binocular autostereoscopic display, which can project
a pair of parallax images to corresponding eyes. The system is
composed of a low-resolution thermal infrared camera, a pair of
high-resolution left and right visible spectral cameras, and an
industrial computer. The infrared camera and the left visible spectral
camera, and the left and right visible spectral camera, can both form
the binocular vision system. The thermal infrared camera
can capture the thermography images. The left and right visible
spectral cameras can capture the left and right visible spectral
images, respectively. Owing to the temperature difference between the
face and background, the features of the face in thermography images
are prominent. We use the YOLO-V3 neural network to detect the
viewers’ faces in thermography images. Owing to the different features
of the pseudo and real faces in the infrared spectral, in the
thermography images, the pseudo-faces can be easily eliminated.
According to the positions and sizes of potential bounding boxes of
the detected faces in the thermography images, the industrial computer
can be guided to determine the left candidate regions in the left
visible spectral image. Then, the industrial computer can determine
the right candidate regions in the right visible spectral image. In
the left candidate regions, the industrial computer detects the faces
and localize the eyes by using the SeetaFace algorithm. The template
matching is performed between the left and right candidate regions to
calculate the accurate distance between the viewer and the system. The
average detection time of the proposed method is about 3–8 ms.
Compared with traditional methods, the localization time is improved
by 86.7%–90.1%. Further, the proposed method is hardly influenced by
the pseudo-faces and the strong ambient light.
It's geology time: Redesigning the Lapworth Museum of Geology
Authors: Burke Verity
Published: April 2020

In 2014, the Lapworth Museum of Geology in Birmingham (United Kingdom) successfully undertook a £2.5 million redesign to restore its heritage, and to adapt its specialist-focused displays for public visitors. This essay unearths the museum's past to argue that previous displays, which required the pedagogy of geological professors to illuminate the objects for the museum's specialist visitors, are replaced by a multimedia display strategy which embeds the history of the museum's geologists within the exhibit narrative, bridging the gap between specialist and public knowledge, transforming the Lapworth into a 'museum at a university' rather than a 'university museum'.
Corruption in Russian Law Enforcement
Authors: Cheloukhine Serguei , Kalkayeva Nesibeli , Khvedelidze Tima , Bizhanova A.R.
Published: April 2020

This study examines crime and corruption among Russian law enforcement agencies after 2009 Police Reforms (henceforth referred to as Reforms). These Reforms sought to curb corruption at all levels of the Russian civil service and among uniformed law enforcement personnel. Many law enforcement officers thought that the rebranding of the militsiya as “politsiya” would have a transformational effect within the organization as well as how others perceived it. Ultimately, the rebranding effort failed; the only concrete changes were the organization's name and its personnel's uniforms. In fact, the Reforms seem to have contributed to even more corruption and abuse of power, as well as an expansion of the Ministry of Interior's ties to corrupt networks.
Психолого-педагогічний вплив корекційно-розвиткових занять на формування життєвих компетентностей підлітків з порушеннями інтелектуального розвитку
Authors: Вовченко Ольга
Published: April 2020

У статті розкрито сутність та особливості формування життєвих компетентностей в процесі корекційно-розвиткових занять з підлітками, що мають порушення інтелектуального розвитку. Автором окреслено основні періоди та компоненти формування життєвої компетентності, залежно від віку та розвитку особистості з порушеннями психофізичного розвитку, зокрема і підлітків з порушеннями інтелектуального розвитку. У статті означено основні принципи корекційно-розвиткової роботи в контексті ефективного формування життєвих компетентностей та емоційного інтелекту особистості. Розглянуто психолого-педагогічний аспект корекційно-розвиткових занять щодо формування основних компетентностей у підлітковому віці. Окреслено основні базові позиції комплексної програми для закладів, де навчаються підлітки з порушеннями інтелектуального розвитку.
The Problem of Representation of Religious in Contemporary Art. Secular and Postsecular Perspectives
Authors: Daraškevičiūtė Vaiva
Published: April 2020

The article deals with the relationship between religion and contemporary art, discussing their configurations from two different perspectives – the one of secularization and the postsecular one. The author mantains that in the perspective of secularization the fields of religion and art are treated as autonomous and separate, therefore the passage to postsecular condition implicates the destruction of principle law of autonomy, by this opening the possibility of the interlaying of the contexts of religion and art. The article comes to the conclusion that postsecular approach supposes that the relationship between religion and contemporary art becomes possible only by accepting the refusal of the direct representation and this means that religious implications can be recognised not as the representations of religious contents, but rather as the track of them, which can assume the forms of profanation or reflection on the experience of secularization.
Use of generalized finite difference method for calculation of beams from nonlinear elastic material
Authors: Aleksandrovskiy Maksim
Published: April 2020

The introduction into practice of construction of structures made of high-strength steels and other materials having a nonlinear deformation diagram caused the active development of the nonlinear theory of calculation of structures. Replacing Hooke’s law with nonlinear dependencies between stresses and strains leads to so-called physical nonlinearity. For the calculation of such structures, the experimentally obtained dependences between stresses and strains are described using analytical expressions. A number of variants of such approximations have been proposed by various researchers. In this paper, we consider the calculation of beams of symmetrical cross-section made of nonlinear elastic material, for which the dependence between stresses and strains is described by a cubic parabola. This approximation ensures the symmetry of the diagram σ with respect to the tension σ – ɛ compression, and also gives a good match with the experimental curve. The use of the generalized finite difference method for solving the problem allows to reduce the system of nonlinear differential equations to the system of algebraic equations, for the solution of which the method of successive approximations is used. Studies have shown that the proposed method of calculation makes it possible to obtain a fairly accurate solution for a small number of elements. In addition, the presented calculation algorithm is convenient for programming and numerical calculation. As an example of systems that allow calculation using the considered algorithm, beam elements of building structures can act. The calculation of a beam from a nonlinear elastic material on the action of a concentrated force is given.
Fatigue strength of asphalt concrete pavement on orthotropic steel deck considering temperature factor
Authors: Poliakov Sergei
Published: April 2020

Fatigue of any material is a process when micro-damage accumulates because of multiple load applications. The result is the appearance of defects after a while. Asphalt concrete pavement on orthotropic steel deck (OSD) of roadway bridges is prone to fatigue failure. There are several reasons for this. Firstly, there is a large number of vehicle impacts for pavement service life. Secondly, the pavement lies on the flexible load-bearing elements of the roadway deck. This leads to high stresses in the asphalt concrete.

In general, stress limitation prevents fatigue defects. The value of this limit is set according to the results of fatigue calculation. This calculation is performed for main load-bearing elements but not for the pavement on the roadway.

In this article the necessary of fatigue strength calculation of pavement on orthotropic steel deck is justified. Also, disadvantages of the existing fatigue calculation method of pavement on the ground are noted. This design method is not applied for fatigue strength calculation for OSD pavement because of these disadvantages. Available experimental results of fatigue strength of asphalt concrete are analyzed. As a result, the need to take into account the temperature factor is established. The hypothesis of linear summation of damages allows to take into account the change of fatigue strength of asphalt concrete at different temperatures.

In the article the endurance of asphalt concrete as part of the typical pavement system on OSD is evaluated in accordance with the described approach. In addition, the tasks for the future are set. Solution of these tasks will allow to developing the method of pavement calculation on different bridges.
The influence of vertical columns of crushed stone on the cryogenic processes of the soil base of the subgrade
Authors: Shepitko Taisiya , Artyushenko Igor
Published: April 2020

Currently, the development of communications in the North is becoming increasingly important for the economy of the Russian Federation. According to the strategy for the development of railway transport until 2030, the construction of the Northern latitudinal passage railway will allow unloading the Trans-Siberian Railway, get transport approaches to the gas and oil fields of the Yamalo-Nenets Autonomous District, and later the Krasnoyarsk Territory, and provide communication with the ports of the Northern Sea Route. The complexity of construction in these regions is due to several reasons: the presence of weak soils in the foundations of structures, the unpredictability of the behavior of frozen soils during freezing-thawing, difficult climatic conditions, and the lack of transport infrastructure. To ensure the stability and sustainability of the subgrade on the Northern latitudinal passage section of the new Obskaya-Salekhard railway line PK 01+50 – PK 06+50, the authors proposed a decision to reinforce the foundation soils with vertical columns of crushed stone. This improvement technology is used in the North for the first time, but it has proven itself in areas with weak foundations. The Northern latitudinal passage section of the new Obskaya-Salekhard railway line PK 01+50 – PK 06+50 is carried out according to the II design principle with the assumption of permafrost thawing. This article has performed and analyzed the modeling of thermophysical processes both with the use of this technology and without it. Conclusions are drawn on the appropriateness of using this technology in the permafrost zone. The results presented in the article are part of the dissertation research I. Artyushenko «Reinforcement of the subgrade base with vertical columns of crushed stone in areas with permafrost soils».
Intelligent composites and their use for self-healing concrete
Authors: Erofeev Vladimir , Kruglov Valeriy , Vatin Nikolay , Al-Dulaimi Salman Dawood Salman
Published: April 2020

It is shown that during operation reinforced concrete structures are very often susceptible to cracking, which leads to a deterioration in the quality and expected life of them. The traditional methods of restoration and strengthening of structures are methods of building up, impregnating the structure of concrete with polymer and other materials, applying monolithic coatings or gluing metal polymer and other elements. Known repair methods are characterized by high complexity of execution, high cost, etc. It is shown that there is a pressing economic incentive for the development of concrete capable of self-repairing and repairing damage. Recently, tendencies toward the creation of new materials that are capable of actively interacting with external factors have been outlined towards world practice; such materials have received the name “intellectual”. The use of «intelligent» materials allows you to monitor and predict the state of various structures and structures, at the required time and even in hard-to-reach areas, significantly increase the resource of engineering systems and their reliability. It has been shown that to date, various chemical methods have been developed for creating self-healing concrete. One of the breakthrough technologies in the field of obtaining effective materials and structures based on them are biotechnologies based on the use of microorganisms. Many researchers have studied the use of calcite produced by bacteria to increase the life of concrete-based structures and restore buildings by eliminating cracks, increasing the strength of concrete, reducing permeability, and reducing water absorption. The article provides an overview of the work of foreign specialists in these areas.
Improving the design of the subgrade in the construction of culverts
Authors: Kamenchukov Aleksey , Lopashuk Andrey , Lopashuk Victor , Svetenok Victor , Ukrainskiy Ilya
Published: April 2020

The article considers the issues of assessing and improving the quality and reliability of culverts and the road drainage system on roads with unpaved and transitional types of pavement. The authors performed a number of field studies aimed at assessing the operational condition of culverts and pavement above them on roads of territorial significance in the Khabarovsk Territory. The issues of the influence of the quality of culverts on the condition of the road surface are examined in detail. Systematized and analyzed data on the influence of the presence (absence) of defects in the body of culverts on the quality of the road surface. The data are ranked by the diameter of the pipe hole and the size of the protective layer, and the degree of influence of the quality of the culvert on the quality of the road surface depending on the thickness of the protective layer is determined. The relationship between defects in culverts and the quality of the road surface is established. Based on the result of mathematical modeling, a nomogram of the dependence of the state of the coating over the culvert on the thickness of the backfill over the pipe and the condition of the culvert is constructed. In a specialized software package, by the finite element method, an assessment of the stress-strain state and structural stability of the subgrade with a culvert under the influence of the normative static load on the structure is carried out. The results of mathematical modeling showed that there is a significant decrease in the stability of the structure, especially with low embankments. To increase the stability and reduce the deformation of the structure, the authors proposed a method of strengthening the embankment of the subgrade in places of the device, which on the basis of mathematical modeling showed its high efficiency.
The monitoring experience of Moscow railway infrastructure sructures
Authors: Marasanov Alexander , Sheikin Alexander
Published: April 2020

The scientific support results of monitoring of Moscow railway infrastructure structures during new construction in close proximity to these structures are represented. This scientific support was realized by means of proposed procedure of displacement estimation of given points of these structures. This procedure is based on application of numerical method. Due to this method displacement increments are computed on each step of building operations (step of solution). The total displacement of considered structure is obtained by summation of all obtained displacement increments. This procedure was applied for scientific support of monitoring of two railway structures. One of them is overbridge across Minskaya street on Moscow – Bryansk line during strengthening of its supports and tunneling in perpendicular direction to railway line. The other is embankment of line Moscow – Kazan during tunneling. Computed displacement of base of overbridge support N 3 after strengthening of support bases is equal to 11,9 millimeter’s. This value obtained by means of geodesic monitoring is equal to 12,6 millimeter’s. Computed displacement of base of overbridge support N 3 after construction of right tunnel is equal to 0,8 millimeter’s. This value obtained by geodesic monitoring after construction of left and right tunnels is equal to 2,6 millimeter’s. Computed displacement of embankment after tunneling is equal to 22,6 millimeter’s. This value obtained by geodesic monitoring is equal to 20 millimeter’s. So the proposed procedure gave satisfactory results.
Construction of a bridge crossing over the Volga in Dubna, Moscow Region
Authors: Kapikyan Artur , Voytseshchuk Natalya
Published: April 2020

The article describes the construction of a unique bridge crossing in Dubna, Moscow Region. Design work started at the beginning of the 2000s. Several options were suggested, clients and design companies changed several times. In 2016, the construction of the bridge crossing over the Volga started. “Institute Giprostroymost” JSC was chosen as a general designer. A range of engineering surveying was carried out and work paper was worked out by the company.

The location of the city on the banks of the Volga determined a sustained transport problem. The shortest crossing of the right and left banks was provided by Ivankovskaya hydropower plant. Actual traffic capacity of the crossing was not enough, and this led to regular traffic congestion. The nearest bridge was situated at the distance of 30 km, in the town of Kimry in the Tverskaya Region. The transport infrastructure situation hampered the development of the “Dubna” special economic zone of technology and innovation type which includes an innovation territorial cluster of nuclear-physical and nanotechnologies as well as the city of Dubna itself. Transport accessibility to the Federal Data Processing Centre of the Federal Tax Service of Russia was also limited.

The bridge crossing has 4 lanes and consists of motor road approaches and a highway bridge.

Shipping length of the bridge with approaches is 1939,93 m.

Shipping length together with the length of the ramps is 2997,99 m.

Total length of the bridge crossing accounts for 1 166,25 m.

Central navigation span is 168,0 m.

The construction of the bridge crossing was carried out within the minimum time limit. 24 months after the erection of the bridge started, in November 2018, the bridge was put into operation.
Pile of high bearing capacity
Authors: Dubinin Vladimir , Piskunov Aleksandr , Kruglov Valery
Published: April 2020

The article discusses issues related to the construction of pile foundations of buildings and structures, including bridges and other transport facilities.

The development of the construction industry contributes to the improvement of pile Foundation construction technology and a significant reduction in economic costs.

Improving the design and technology of pile foundations is one of the main tasks in the field of transport construction.

The effectiveness of pile foundations is due to the more complete use of the bearing capacity of the soil base and the strength of the Foundation elements.

One of the disadvantages of the pile foundation is the low bearing capacity of the soil on the side surface of the pile.

The proposed solution is based on the device along the longitudinal axis of the pile rigidly fixed, multi-pass continuous inclined edges having the shape of a plate, and faces adjacent to the side surface of the tubular steel barrel.
Analysis of buried pipelines laid under the pipelines operation, is subjected to operational loads
Authors: Muravieva Liudmila , Ovchinnikov Igor
Published: April 2020

Today’s successful operation within the oil and gas industry is based on the triangle “Safety – Reliability – Profitability (Efficiency)”.

It is of high importance to properly balance these different and sometimes opposite positions. The article describes the characteristics of the strength of the buried offshore pipeline. Pipe geometric imperfections as the cross section ovality, combined load effects as axial and bending loads superimposed to the external pressure, material properties as compressive yield strength in the circumferential direction and across the wall thickness etc., significantly interfere in the definition of the demanding, in such projects, minimum wall thickness requirements.
Exclusion of Men from Randomized Phase III Breast Cancer Clinical Trials
Authors: Corrigan Kelsey L. , Mainwaring Walker , Miller Austin B. , Lin Timothy A. , Jethanandani Amit , Espinoza Andres F. , Piotrowski Matt , Fuller C. David , Stauder Michael C. , Shaitelman Simona F. , Perkins George H. , Woodward Wendy A. , Giordano Sharon H. , Smith Benjamin D. , Ludmir Ethan B.
Published: April 2020

Male breast cancer treatment regimens are often extrapolated from female-based studies because of a paucity of literature analyzing male breast cancer. Using ClinicalTrials.gov, we analyzed breast cancer randomized clinical trials (RCTs) to determine which factors were associated with male-gender inclusion. Of 131 breast cancer RCTs identified, male patients represented 0.087% of the total study population, which is significantly less than the proportion of male patients with breast cancer in the U.S. (0.95%; p < .001). Twenty-seven trials included male patients (20.6%). Lower rates of male inclusion were seen in trials that randomized or mandated hormone therapy as part of the trial protocol compared with trials that did not randomize or mandate endocrine therapy (2.5% vs. 28.6% male inclusion; p < .001). It is imperative for breast cancer clinical trials to include men when allowable in order to improve generalizability and treatment decisions in male patients with breast cancer.
PENGARUH BRAND IMAGE DAN PRICING POLICY TERHADAP KEPUTUSAN PEMBELIAN MELALUI BRAND TRUST
Authors: Karamang Ezra
Published: April 2020

Pendidikan merupakan usaha agar manusia dapat mengembangkan potensi dan keahlian yang ada dalam dirinya melalui proses pembelajaran. Pengembangan usaha di bidang pendidikan terbilang berpotensi dan kini citra atau reputasi juga kepercayaan terhadap pendidikan tinggi merupakan modal utama dalam mengembangkan usaha dalam dunia pendidikan. Tetapi dalam praktiknya mengembangkan perguruan tinggi di Indonesia bukanlah hal yang mudah. Citra atau reputasi yang mencerminkan perguruan tinggi, harga yang ditetapkan dan kepercayaan terhadap perguruan tinggi dapat mempengaruhi keputusan calon mahasiswa untuk melanjutkan studi ke perguruan tinggi. Penelitian ini bertujuan untuk mengetahui bagaimana pengaruh brand image dan pricing policy terhadap keputusan pembelian melalui brand trust. Metode penelitian menggunakan descriptive survey dan explanatory survey. Populasi 59.593 mahasiswa dengan 140 sampel mahasiswa yang sedang berkuliah di Kampus XYZ. Analisis data statistik yang digunakan adalah path analysis. Hasil penelitian menunjukan bahwa brand image dan pricing policy melalui brand trust berpengaruh terhadap keputusan pembelian. Berdasarkan temuan penelitian, maka memperkuat brand image dan meneliti ulang penetapan harga dapat mempengaruhi kepercayaan hingga keputusan memilih.
Quantifying Learning: Measuring Student Outcomes in Higher Education in England
Authors: Kandiko Howson Camille , Buckley Alex
Published: April 2020

Since 2014, the government in England has undertaken a programme of work to explore the measurement of learning gain in undergraduate education. This is part of a wider neoliberal agenda to create a market in higher education, with student outcomes featuring as a key construct of value for money. The Higher Education Funding Council for England (subsequently dismantled) invested £4 million in funding 13 pilot projects to develop and test instruments and methods for measuring learning gain, with approaches largely borrowed from the US. Whilst measures with validity in specific disciplinary or institutional contexts were developed, a robust single instrument or measure has failed to emerge. The attempt to quantify learning represented by this initiative should spark debate about the rationale for quantification—whether it is for accountability, measuring performance, assuring quality or for the enhancement of teaching, learning and the student experience. It also raises profound questions about who defines the purpose of higher education; and whether it is those inside or outside of the academy who have the authority to decide the key learning outcomes of higher education. This article argues that in focusing on the largely technical aspects of the quantification of learning, government-funded attempts in England to measure learning gain have overlooked fundamental questions about the aims and values of higher education. Moreover, this search for a measure of learning gain represents the attempt to use quantification to legitimize the authority to define quality and appropriate outcomes in higher education.
Coronavirus disease (COVID-19) and disseminated intravascular coagulation syndrome
Authors: Makatsariya A. D. , Grigoreva K. N. , Mingalimov M. A. , Bitsadze V. O. , Khizroeva J. Kh. , Tretyakova M. V. , Elalamy I. , Shkoda A. S. , Nemirovskiy V. B. , Blinov D. V. , Mitryuk D. V.
Published: April 2020

COVID-19 is an infectious disease caused by the beta-coronavirus SARS-CoV-2 that in 2020 has spread worldwide. In most severe patients, the clinical picture begins with respiratory failure further deteriorating up to multiple organ failure. Development of coagulopathy is the most adverse prognostic. Analyzing currently available clinical data revealed that 71.4 % and 0.6 % of survivors and fatal cases, respectively, demonstrated signs of overt disseminated intravascular coagulation (DIC). Monitoring D-dimer level, prothrombin time, platelet count and fibrinogen content is important for determining indications for treatment and hospitalization in COVID-19 patients. In case such parameters deteriorate, a more pro-active “aggressive” intensive care should be applied. Low molecular weight heparin (LMWH) should be administered to all patients with diagnosed COVID-19 infection (including non-critical patients) requiring hospitalization, but having no contraindications to LMWH.
Post-eventual discourse in online communities: intentional structure and the manners of discursive impact
Authors: Pavlova N.D. , Grebenschikova T.A.
Published: April 2020

The work is focused on the post-eventual discourse that is considered as collective response to the news, post, event etc. The paper discusses research approaches and such distinctive phenomena of the post-eventual discourse as topic problematization, negative appraisal, increasing number of referential objects and their transformation. We claim that perspectives on studying of post-eventual news and citizen discourse in online communities are related to the scope of Intent-analysis. Results of empirical work on the intentional structure of discourse and manners of discursive impact were found with original techniques of Intent-analysis. The sample included 500 comments on the news and UGC (user generated content) web-sites for the period of 2013 -2018. The relation between intentional and rhetorical features in post-eventual discourse reveals the communicant’s choice of a particular way of discursive impact.
Possibilities of automatic text analysis in the task of determining the psychological characteristics of the author
Authors: Kovalev A.K. , Kuznetsova Y.M. , Penkina M.Y. , Stankevich M.A. , Chudova N.V.
Published: April 2020

Using a tool for automatic text analysis and machine learning methods developed at the Federal Research Center ‘Computer Science and Control’ of the Russian Academy of Sciences, the first results are obtained in the task of identifying text parameters specific to people with certain psychological characteristics. The tool of corpus linguistic and statistical research, based on the use of relational-situational analysis, psycholinguistic indicators and dictionaries covering the vocabulary of emotional and rational assessment, allowed us to obtain values for 177 textual attributes of the essay written by 486 subjects. To obtain data on the severity of characterological and personality characteristics of the subjects, a number of psychological questionnaires were used. When processing the data, binary classification algorithms were used — the support vector method (SVM) and the Random Forest method. The results allow us to draw conclusions about the prospects of using some textual parameters in problems of population psychodiagnostics and the adequacy of the applied classification algorithms.
Post mastectomy breast reconstruction with autologous latissimus dorsi flap: a study of 30 cases
Authors: Singla Shipra , Kakkar Vikas , Singh Rana Ranjit
Published: April 2020

Background: There is a growing demand for breast reconstruction and among the plethora of breast reconstruction techniques, the latissimus dorsi (LD) flap is a versatile, reliable means for soft tissue coverage, providing form and function with acceptable perioperative and long-term morbidities for a variety of breast defects. The aim of this study was to find out the advantages of immediate breast reconstruction in terms of postoperative morbidity and patient satisfaction with respect to her expectations.Methods: The study was conducted in the Department of General Surgery at Sri Guru Ram Das Institute of Medical Sciences and Research, Vallah, Sri Amritsar. Thirty female patients who had undergone immediate breast reconstruction with latissimus dorsi flap after modified radical mastectomy attending surgery department from November 2017 to September 2019 were taken. The follow up was done to find out post-operative complications and a statistical scoring was done according to rating scale of quality of life.Results: Most common complication after breast reconstruction with LD flap was found to be seroma formation (50%) followed by wound infection and flap necrosis 25% each while flap necrosis >20% was not found in any case. For emotional feeling regarding health, social activities, overall health and quality of life; there was significant improvement after surgery.Conclusions: It can be concluded that immediate breast reconstruction with autologous latissimus dorsi flap is the treatment of choice following mastectomy in cases of breast carcinoma, whenever possible.
Burdur İlinde Yetiştirilen Fasulye Bitkilerinde Bean Yellow Mosaic Virus (BYMV)’ünün Araştırılması
Authors: Ulum Merve , Çulal Kılıç Handan , Yardımcı Nejla
Published: April 2020

Bu çalışmada Türkiye’deki fasulye yetiştiriciliğinde önemli bir paya sahip olan Burdur ilinde BYMV (Bean yellow mosaic virus)’ün varlığı araştırılmıştır. Öncelikli olarak bu bölgedeki fasulye üretim alanlarına sürveyler yapılarak virüs simptomu sergileyen fasulye yaprak örnekleri alınmıştır. Toplanan fasulye yaprak örneklerinde BYMV’nin varlığı biyolojik ve serolojik olarak araştırılmıştır. Arazi çalışmaları sonucunda; 443 örnek toplanmış ve bütün örnekler BYMV’ne spesifik antiserumlar kullanılarak double antibody sandwich enzyme linked immunosorbent assay (DAS-ELISA) yöntemiyle testlenmiştir. DAS-ELISA testi sonucunda 443 örnekten 97’sinde (% 21.89) BYMV belirlenmiştir. DAS-ELISA testi sonucunda pozitif reaksiyon veren yaprak örnekleri, test bitkilerine inokule edilmiş ve oluşan belirtiler değerlendirilmiştir. Çalışmaların sonucunda Burdur fasulye üretim alanlarından alınan yaprak örneklerinde BYMV enfeksiyonları saptanmıştır.
Corporate Governance, Financial Performance and Firm Value;
Authors: Ochego Evans machero , Omagwa Job , Muathe Stephen
Published: April 2020

Firm value is dependent on corporate which leads to increased value. High valued firms attract more investors. Towards firm value protection, minimum capital requirements were raised by the Central Bank of Kenya from 250 million to 1 billion shillings on commercial banks to cushion bank shareholders value. Despite the increased oversight and regulatory efforts on corporate governance to protect and enhance firm value, some commercial banks have recorded low firm value. Hence, this study sought to investigate the mediating effect of financial performance on the relationship between corporate governance and firm value of commercial banks in Kenya. The study was anchored on Agency Theory. Explanatory research design was adopted. Target population was forty four Kenyan commercial banks, where a census was conducted. Secondary data was collected from published financial statements and bank websites for the period 2009 to 2018. STATA version 13.0 was used for data analysis. Descriptive and inferential statistics specifically panel regression was used in data analysis. The study findings established that there is a statistically significant effect between financial performance and firm value of commercial banks in Kenya. Therefore, the study concluded that firms with good financial performance have high firm value. And as such, these calls for the management of the commercial banks improve financial performance which will go a long way in improving firm value. There is also need for Central bank of Kenya, Capital Markets Authority and Nairobi Securities Exchange to emphasis on corporate governance and short term goals to enable achievement of long term goals .
Chronotype and Social Jetlag - a (self-)critical review
Authors: Roenneberg Till , Pilz Luisa , Zerbini Giulia , Winnebeck Eva
Published: April 2020

The Munich ChronoType Questionnaire (MCTQ) has now been available for more than 15 years; its original publication has been cited 1,240 times (Google Scholar, May 2019); its online version, which was available until July 2017, has produced almost 300,000 entries from all over the world (MCTQ database). The MCTQ has gone through several versions, has been translated into 13 languages and has been validated against other more objective measures of daily timing in several independent studies. Besides being used as a method to correlate circadian features of human biology with other factors – ranging from health issues to geographical factors – the MCTQ gave rise to quantifying old wisdoms, like “teenagers are late” and has produced new concepts, like social jetlag. Some like the MCTQ’s simplicity and some view it critically; it is time to have a self-critical view on the MCTQ, to address some misunderstandings and give some definitions about MCTQ-derived chronotype and the concept of social jetlag.
Potential of Plant Bioactive Compounds as SARS-CoV-2 Main Protease (Mpro) and Spike (S) Glycoprotein Inhibitors: A Molecular Docking Study
Authors: Tallei Trina Ekawati , Tumilaar Sefren Geiner , Niode Nurdjannah Jane , Fatimawali Fatimawali , Kepel Billy Johnson , Idroes Rinaldi , Effendi Yunus
Published: April 2020

Background: Since the outbreak of the coronavirus disease 2019 (COVID-19) pandemic, researchers have been trying to investigate several active compounds found in plants that have the potential to inhibit the proliferation of SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2), the cause of COVID-19. The search for plant-based antivirals against the SARS-CoV-2 is promising, as several plants have been shown to possess antiviral activities against betacoronaviruses (beta-CoVs) Objective: The present study aimed to evaluate bioactive compounds found in plants by using a molecular docking approach to inhibit Main Protease (Mpro) (PDB code: 6LU7) and Spike (S) Glycoprotein (PDB code: 6VXX) of SARS-CoV-2. Methods: Evaluation was performed on the docking scores calculated using AutoDock Vina as a docking engine. For each compound that was docked, a rule of five was calculated to determine whether a compound with certain pharmacological or biological activities might have chemical and physical properties that would make it an active drug orally in humans. Determination of the docking score was done by selecting the conformation of the ligand that has the lowest binding free energy (best pose). As a comparison, nelfinavir (an antiretroviral drug), chloroquine and hydroxychloroquine sulfate (anti-malarial drugs recommended by the FDA as emergency drugs) were used. Results: The results showed that hesperidine, cannabinoids, pectolinarin, epigallocatechin gallate, and rhoifolin had better poses than nelfinavir, chloroquine and hydroxychloroquine sulfate as spike glycoprotein inhibitors. Hesperidin, rhoifolin, pectolinarin, and cannabinoids had about the same pose as nelfinavir, but were better than chloroquine and hydroxychloroquine sulfate as Mpro inhibitors. These plant compounds have the potential to be developed as specific therapeutic agents against COVID-19. Conclusion: Several natural compounds of plants evaluated in this study showed better binding free energy compared to nelfinavir, chloroquine and hydroxychloroquine sulfate which so far are recommended in the treatment of COVID-19.
Effect of Annealing Time and Temperature Parameters on the Microstructure, Hardness and Strain-Hardening Coefficients of 42CrMo4 Steel
Authors: Szala Mirosław , Winiarski Grzegorz , Wójcik Łukasz , Bulzak Tomasz
Published: April 2020

The study presents the effect of annealing process parameters on the microstructure, hardness and strain hardening coefficients i.e., the strength coefficient c and the strain hardening exponent n, of 42CrMo4 steel. Seven selected annealing time-temperature schemes are examined for superior steel formability in cold metal forming conditions. The c and n coefficients are first determined in experimental upsetting of annealed samples and then used in FEM simulations of the upsetting process. The results demonstrate that the strain hardening coefficients (c and n) depend on the employed annealing scheme. Compared to the as-received sample, the annealing process reduces the true stress and effectively decrease the hardness of 42CrMo4 steel, improves microstructural spheroidization and, consequently, facilitates deformability of this material. The annealing schemes relying on heating the material to 750 °C and its subsequent slow cooling lead to the highest decrease in hardness ranging from 162 to 168HV. Results obtained with the SEM-EDS, LOM and XRD methods lead to the conclusion that the employed heat treatment schemes cause the initial ferritic-pearlitic microstructure to develop granular and semi-lamellar precipitation of cementite enriched with Mo and Cr in the ferrite matrix. In addition, the annealing process affects the growth of α-Fe grains. The highest cold hardening rate, and thus formability, is obtained for the annealing scheme producing the lowest hardness. The results of FEM simulations are positively validated by experimental results. Obtained results are crucial for further numerical simulations and experimental research connected with developing new cold metal forming methods for producing parts made of 42CrMo4 steel.
Well-defined Conjugated Macromolecules in Sensing
Authors: Krywko-Cendrowska Agata , Szweda Dawid , Szweda Roza
Published: April 2020

Macromolecules with well-defined structures in terms of molar mass and monomer sequence became interesting building blocks for modern materials. The precision of the macromolecular structure makes fine-tuning of the properties of resulting materials possible. Conjugated macromolecules exhibit excellent optoelectronic properties that make them exceptional candidates for sensors construction. The importance of chain length and monomer sequence is particularly important in conjugated systems. The sequence lengths, monomer sequence and structural modification often influence the energy bang gap between HOMO and LUMO orbitals of the molecules that reflect in their properties. Moreover, the supramolecular aggregation that is often observed in oligo-conjugated systems is usually strongly affected by even minor structural changes that are used for sensor designs. This review summarizes the examples of well-defined conjugated macromolecules based on oligo(arylene ethynylene)s skeleton used for sensor applications. The sensing mechanisms and importance of uniformity of structure are discussed.
Cytoplasmic Increase of Hsp70 Protein: Potential New Biomarker of Early Infiltration of Cutaneous Squamous Cell Carcinoma Arising from Actinic Keratosis
Authors: Fernandez-Guarino Montserrat , Zamorano León José Javier , López Farré Antonio José , Gonzalez Morales Maria Luisa , Sanchez Adrada Ana Isabel , Barrio Garde Jose , Arias Navalon Jose Antonio , Jaen-Olasolo Pedro
Published: April 2020

Background: Cutaneous squamous skin cell carcinoma (SCC) is the second most frequent type of non- melanoma skin cancer and the second cause of death by skin cancer in caucasian population. However, at present it is difficult to predict patients with worst SCC prognosis. Objective: To identify proteins whose expression level could predict SCC infiltration in SCC arising from actinic keratosis (AC). Methods: A total of 20 biopsies of 20 different patients were studied, 10 were from SCC-AK samples and 10 from normal skin. Early infiltrated SCC-AK were selected on histological examination and to determine the expression of proteins fresh skin samples were processed by 2DE-electrophoresis Results: The expression levels of three proteins namely alpha-hemoglobin, heat shock protein (Hsp)-27 and 70 were significantly increased in SCC-AK samples with respect to normal control skin. However, only the expression level of Hsp70 protein positively correlated with the level of SCC-AK dermis infiltration. Immnunohistological examination suggested that the increased expression of Hsp70 proteins seems to mainly occur in the keratinocytes cytoplasm. The increased cytoplasmic Hsp70 expression in SCC-AK was confirmed by Western-blot experiments. Conclusion: Cytoplasmic expression of Hsp70 could be potential biomarker of early infiltration of SCC arising from an AK. Keywords: actinic keratosis, cutaneous squamous cell carcinoma; cytoplasm, skin cancer; heat shock protein.
Traffic Flow Catastrophe Border Identification for Urban High-density Area Based on Cusp Catastrophe Theory: A Case Study under Sudden Fire Disaster
Authors: Lin Ciyun , Yu Yongli , Wu Dayong , Gong Bowen
Published: April 2020

For traffic management under sudden disaster in high-density areas, the first and foremost step is to prevent traffic congestion in the disaster-affected area by traffic flow control, as to provide enough and flexible traffic capacity for emergency evacuation and emergency rescue. Catastrophe border identification is the foundation and the key to traffic congestion prediction under sudden disaster. This paper uses a mathematical model to study the regional traffic flow in the high-density area under sudden fire disaster based on the Cusp Catastrophe Theory (CCT). The catastrophe border is identified by fitting the CCT-based regional traffic flow model to explore the stable traffic flow changing to the instable state, as to provide a theoretical basis for traffic flow manage and control in disaster-affected areas, and to prevent the traffic flow being caught into disorder and congestion. Based on VISSIM simulator data by building simulation scenarios with and without sudden fire disaster in a Sudoku traffic network, the catastrophe border is identified as 439pcu/lane/h, 529pcu/lane/h, 377pcu/lane/h at 5s, 10s, 15s data collection interval respectively. The corresponding relative precision, which compares to the method of Capacity Assessment Approach (CAA), is 89.1%, 92.7% and 76.5% respectively. It means that 10s data collection interval would be the suitable data collection interval in catastrophe border identification and regional traffic flow control in high-density area under sudden fire disaster.