bluuebunny/crossref_metadata_2025_split huggingface dataset:
Tuning magnetic properties of penta-graphene bilayers through doping with boron, nitrogen, and oxygen
Authors: Santos Ramiro Marcelo dos , da Cunha Wiliam Ferreira , de Sousa Junior Rafael Timóteo , Giozza William Ferreira , Ribeiro Junior Luiz Antonio 
Published: October 2020

AbstractPenta-graphene (PG) is a carbon allotrope that has recently attracted the attention of the materials science community due to its interesting properties for renewable energy applications. Although unstable in its pure form, it has been shown that functionalization may stabilize its structure. A question that arises is whether its outstanding electronic properties could also be further improved using such a procedure. As PG bilayers present both sp$$^2$$

2

and sp$$^3$$

3

carbon planes, it consists of a flexible candidate for functionalization tuning of electromagnetic properties. In this work, we perform density functional theory calculations to investigate how the electronic and structural properties of PG bilayers can be tuned as a result of substitutional doping. Specifically, we observed the emergence of different magnetic properties when boron and nitrogen were used as dopant species. On the other hand, in the case of doping with oxygen, the rupture of bonds in the sp$$^2$$

2

planes has not induced a magnetic moment in the material.
Contrast medium administration with a body surface area protocol in step-and-shoot coronary computed tomography angiography with dual-source scanners
Authors: Jin Liang , Gao Yiyi , Sun Yingli , Li Cheng , Gao Pan , Zhao Wei , Li Ming 
Published: October 2020

AbstractWe evaluated the feasibility and image quality of prospective electrocardiography (ECG)-triggered coronary computed tomography angiography (CCTA) using a body surface area (BSA) protocol for contrast-medium (CM) administration on both second- and third-generation scanners (Flash and Force CT), without using heart rate control. One-hundred-and-eighty patients with suspected coronary heart disease undergoing CCTA were divided into groups A (BSA protocol for CM on Flash CT), B (body mass index (BMI)-matched patients; BMI protocol for CM on Flash CT), and C (BMI-matched patients; BSA protocol for CM on Force CT). Patient characteristics, quantitative and qualitative measures, and radiation dose were compared between groups A and B, and A and C. Of the 180 patients, 99 were male (median age, 62 years). Average BSA in groups A, B, and C was 1.80 ± 0.17 m2, 1.74 ± 0.16 m2, and 1.64 ± 0.17 m2, respectively, with groups A and C differing significantly (P < 0.001). Contrast volume (50.50 ± 8.57 mL vs. 45.00 ± 6.18 mL) and injection rate (3.90 ± 0.44 mL/s vs. 3.63 ± 0.22 mL/s) differed significantly between groups A and C (P < 0.001). Groups A and C (both: all CT values > 250 HU, average scores > 4) achieved slightly lower diagnostic image quality than group B. The BSA protocol for CM administration was feasible in both Flash and Force CT, and therefore may be valuable in clinical practice.
Deep tuning of photo-thermoelectricity in topological surface states
Authors: Huang Shouyuan , Miotkowski Ireneusz , Chen Yong P. , Xu Xianfan 
Published: October 2020

AbstractThree-dimensional topological insulators have been demonstrated in recent years, which possess intriguing gapless, spin-polarized Dirac states with linear dispersion only on the surface. The spin polarization of the topological surface states is also locked to its momentum, which allows controlling motion of electrons using optical helicity, i.e., circularly polarized light. The electrical and thermal transport can also be significantly tuned by the helicity-control of surface state electrons. Here, we report studies of photo-thermoelectric effect of the topological surface states in Bi2Te2Se thin films with large tunability using varied gate voltages and optical helicity. The Seebeck coefficient can be altered by more than five times compared to the case without spin injection. This deep tuning is originated from the optical helicity-induced photocurrent which is shown to be enhanced, reduced, turned off, and even inverted due to the change of the accessed band structures by electrical gating. The helicity-selected topological surface state thus has a large effect on thermoelectric transport, demonstrating great opportunities for realizing helicity control of optoelectronic and thermal devices.
SP prevents T2DM complications by immunomodulation
Authors: Baek Sang-Min , Kim Kiyoung , Kim Suna , Son Youngsook , Hong Hyun Sook , Yu Seung-Young 
Published: October 2020

AbstractType 2 diabetic mellitus (T2DM) is characterized by systemic inflammation and insulin resistance due to obesity, and this leads to critical complications, including retinopathy and nephropathy. This study explored the therapeutic effect of substance-p (SP), a neuropeptide, on T2DM progression and its complications. To examine whether SP affects glucose metabolism, lipid metabolism, systemic inflammation, and retinopathy, Otsuka Long-Evans Tokushima Fatty rats (OLETF, 27 weeks old) with chronic inflammation, obesity, and impaired bone marrow stem cell pool was selected. SP was intravenously injected and its effect was evaluated at 2 and 4 weeks after the SP injection. OLETF had typical symptoms of T2DM, including obesity, chronic inflammation, and poor glycemic control. However, SP treatment inhibited the body-weight gain and reduced circulating levels of free fatty acid, cholesterol, and triglyceride, ameliorating the obese environment. SP could suppress inflammation and rejuvenate bone marrow stem cell in OLETF rats. SP-mediated metabolic/immunological change could resolve hyperglycemia and insulin resistance. Histopathological analysis confirmed that SP treatment alleviated the dysfunction of target tissue with insulin resistance. OLETF rats have retinal damage from 27 weeks of age, which was reliably aggravated at 31 weeks. However, SP treatment could restore the damaged retina, sustaining its structure similarly to that of non-diabetic rats. In conclusion, systemic application of SP is capable contribute to the inhibition of the progression of T2DM and diabetic retinopathy.
Valley-polarized domain wall magnons in 2D ferromagnetic bilayers
Authors: Ghader Doried 
Published: October 2020

AbstractValleytronics is a pioneering technological field relying on the valley degree of freedom to achieve novel electronic functionalities. Topological valley-polarized electrons confined to domain walls in bilayer graphene were extensively studied in view of their potentials in valleytronics. Here, we study the magnonic version of domain wall excitations in 2D honeycomb ferromagnetic bilayers (FBL) with collinear order. In particular, we explore the implications of Dzyaloshinskii-Moriya interaction (DMI) and electrostatic doping (ED) on the existence and characteristics of 1D magnons confined to layer stacking domain walls in FBL. The coexistence of DMI and ED is found to enrich the topology in FBL, yet the corresponding domain wall magnons do not carry a well-defined valley index. On the other hand, we show that layer stacking domain walls in DMI-free FBL constitute 1D channels for ballistic transport of topological valley-polarized magnons. Our theoretical results raise hope towards magnon valleytronic devices based on atomically thin topological magnetic materials.
Kritisches Outcome und Hypoxisch-Ischämische Enzephalopathie
(HIE) – Ein Thema der Qualitätssicherung
Authors: Schmidt Stephan , Misselwitz Björn , Schuster Roxanne , Schrod Lothar 
Published: October 2020

ZusammenfassungZiel dieser Studie ist es, ein kritisches postnatales Outcome als
Prädiktor für die Entwicklung einer hypoxisch
ischämischen Enzephalopathie (HIE) zu evaluieren.
Methodik Auf Basis der Daten der hessischen Perinatalerhebung aus dem
Jahr 2016 mit 52 122 Geburten (Lebendgeborene Einlinge,
≥ 37+0 Schwangerschaftswochen) wurden die
Fälle mit kritischem Outcome identifiziert. Kriterien waren ein
APGAR-Score <5 nach 5 Minuten in Kombination mit einem pH
<7,00 bzw. Basendefizit >16,0 mmol/L. Diese
Fälle wurden mit den HIE-Fällen aus der Neonatalerhebung
zusammengeführt. Es wurden die Odds Ratio sowie
Sensitivität/Spezifität und positiver
(ppW)/negativer(npW) Vorhersagewert berechnet. Durch Evaluation des
Geburtsverlaufes und des subpartalen CTG wurde die potentielle
Vermeidbarkeit des Kritischen Outcomes/hypoxisch
ischämischen Enzephalopathie überprüft.
Ergebnisse Die Inzidenz der Fälle mit kritischem Outcome
(n=11) und derer mit hypoxisch ischämischen Enzephalopathie
(n=29) ist gering. Nach Zusammenführung der Daten aus der
Perinatal- respektive Neonatalerhebung ergaben sich eine
Sensitivität von 10,34%, eine Spezifität von
99,98%, ein positiver bzw. negativer prädiktiver Wert von
27,35, bzw. 99,95%. In nahezu einem Drittel der Fälle mit
kritischem Outcome (4/11) oder hypoxisch ischämischen
Enzephalopathie (9/29) fanden sich Hinweise auf eine potentielle
Vermeidbarkeit.
Schlussfolgerungen Ein postnataler Depressionszustand führt
häufiger zur Diagnose einer HIE als eine schwere Azidose im
Nabelschnurblut. Da ein Drittel der Fälle vermeidbar erscheinen,
kann die fachübergreifende Einzelfallanalyse bei kritischem
Neugeborenenstatus zur Optimierung der Geburtshilfe auch im Rahmen der
externen Qualitätssicherung (QS) zielführend sein.
The Potential Role of Coagulation Factor Xa in the Pathophysiology of COVID-19: A Role for Anticoagulants as Multimodal Therapeutic Agents
Authors: Frydman Galit H. , Streiff Michael B. , Connors Jean M. , Piazza Gregory 
Published: October 2020

AbstractSARS-CoV-2 infection (COVID-19) results in local and systemic activation of inflammation and coagulation. In this review article, we will discuss the potential role of coagulation factor Xa (FXa) in the pathophysiology of COVID-19. FXa, a serine protease, has been shown to play a role in the cleavage of SARS-CoV-1 spike protein (SP), with the inhibition of FXa resulting in the inhibition of viral infectivity. FX is known to be primarily produced in the liver, but it is also expressed by multiple cells types, including alveolar epithelium, cardiac myocytes, and macrophages. Considering that patients with preexisting conditions, including cardiopulmonary disease, are at an increased risk of severe COVID-19, we discuss the potential role of increased levels of FX in these patients, resulting in a potential increased propensity to have a higher infectious rate and viral load, increased activation of coagulation and inflammation, and development of fibrosis. With these observations in mind, we postulate as to the potential therapeutic role of FXa inhibitors as a prophylactic and therapeutic treatment for high-risk patients with COVID-19.
Selves, interactive representations and context
Authors: Thibault Paul J. 
Published: October 2020

AbstractIn this paper, I re-examine the notion of ‘clause-as-representation’ in Michael Halliday’s systemic functional theory of language. I argue that ‘representation’ is a mode of linguistic action that cannot be understood in terms of the experiential metafunction alone. Instead, a theoretical account of representation must be undertaken in relation to all the metafunctions. Rejecting encodingist accounts of representation, I develop the argument that representations are interactively constituted and emergent in languaging activity. The paper develops these arguments in relation to a process ontological account of the relations between language and the world-side phenomena that language represents. Language does not encode actualities. The future-oriented, anticipatory character of languaging is fundamentally modal in character. A co-articulated self-utterance-situation matrix never attains full actuality. The virtual potentialities of languaging always have the potential for further individuation.
Computationally efficient model of OCT scan formation by focused beams and its usage to demonstrate a novel principle of OCT-angiography
Authors: Matveyev Alexander L , Matveev Lev A , Moiseev Alexander A , Sovetsky Alexander A , Gelikonov Grigory V , Zaitsev Vladimir Y 
Published: October 2020

Abstract
In this paper, we present a computationally highly efficient full-wave model of optical coherence tomography (OCT)-scan formation by focused beams in spectral-domain OCT. Similarly to some previous models, it is based on the summation of fields scattered by discrete sub-resolution scatterers, and enables one to account for the axial and lateral inhomogeneity of the illuminating Gaussian beam. The main feature ensuring the high computational efficiency of the described model is that, rather than numerical integration of the scattered signal over the receiving aperture, we apply an analytical description of both the illuminating-beam focusing and the collection of the scattered signals over the receiving aperture. Elimination of numerical integration over the receiving aperture increases the overall computation speed by a factor of

∼

10
3

. This is of key importance in terms of the practical feasibility of simulations of 3D OCT data volumes for large amounts (∼

10
5

−

10
7

) of scatterers, corresponding to realistic densities of cells in biological tissues. We demonstrate the model’s possibilities by simulating the digital refocusing of strongly focused OCT beams in the presence moving scatterers, thereby presenting a novel principle of contrast-agent-free visualization of scatterer flows, with velocities typical of blood microcirculation.
The design of steel constructions in seismic conditions
Authors: Olfati Rahmanuddin , Shologin Sergei 
Published: October 2020

Abstract
In this article, the principles of designing of seismic resistant steel frames of industrial buildings are considered. The particular attention is paid to the damage causes of the steel frames under the seismic loads affects, and to the requirements that must be considered while designing the steel frames in seismically active areas. The most suitable materials that can be used to strengthen the steel frames have been studied. The strengthening is possible due to the frame’s proper operating in accordance with arising seismic loads. The analysis of the loads, which are calculated according to the regulatory documents of Russia and other countries, is presented. As well, the loads have been compared to each other. There is a review of possible experimental methods to determine the frame’s strength under the seismic loads in the article. In addition, there are some critics on the existing regulatory documents and on, exactly, the formulas and coefficients used, as well as on the proposed alternative solutions. We have made the research of the effect that soil has on the steel frame’s strength characteristics under the seismic loads. Promising constructive solutions for steel frames in case of earthquakes are indicated. The experience of designing the earthquake-resistant structures in other countries has been studied. The materials and documents about the past accidents in Russia and world’s other countries have been analyzed. The studying of the influence of the steel frames own vibrations and their constructional forms on the foundation’s pliability is also presented here.
Evaluation of railway stations as cultural heritage objects
Authors: Lisienkova L , Lisienkova T 
Published: October 2020

Abstract
This article touches upon different characteristics of evaluation of cultural heritage estate sites. The classification features of buildings wht can be descrived as railway stations and terminals have been specified. A functional analysis of objects like railway stations and other kinds of road junction construction sites and buldings for purposes of transportation system has showed that it is possible to identify and evaluate the consumer properties and usefulness of buildings based on its technical characteristics. The study of planning systems in terms of consumer preferences has allowed to identify their advantages and disadvantages. As a result several principles of complex assessment of cultural heritage estate objects for transportation system have been developed. Prospective studies can be related to the modernization of classical approaches to evaluation of real estate of transportation infrastructure with consideration of intangible value of cultural heritage objects.
Deflections of partially previously strained reinforced concrete constructions at repeated loadings
Authors: Bayramukov S H , Dolaeva Z N 
Published: October 2020

Abstract
The behavior of partially prestressed structures under repeated loads is considered. The effect of repeated loads on the deflections of partially prestressed structures is studied. The analysis of the deflections after the influence of the cycles of reloading on the deflections of partially prestressed structures at various levels of reloading carried out. It revealed that after the formation of cracks, the stiffness of the cross sections of the beams significantly decreases, because of which an acceleration of the increment of deflections observed. The linearity of the graphs of the dependence of the deflection on the moment violated: a characteristic break point appears, the deflection lines become convex in the direction of the load axis. In contrast to specimens without prestressing or fully prestressing, in the partially prestressed elements, three characteristic break points of deflection curves corresponding to crack formation, yield stress of tensile and non-tensile reinforcement can be distinguish.
Efficient and secure logistics transportation system
Authors: Kolesnikov M V , Lyabakh N N , Mamaev E A , Bakalov M V 
Published: October 2020

Abstract
The presented comparative characteristic of the values of the indicators of the Logistics Efficiency Index illustrates the problems of the transport and logistics complex of Russia. Consideration of the effectiveness of the transport and logistics complex from various perspectives (financial, production) made it possible to justify the need to formalize the relations (coordination of conflicting interests) of the participants in the logistics process, to ensure the internal integrity and security of the functioning of the transport and logistics complex. The solution to these issues was proposed by creating a special cyberphysical system using multi-agent systems, Internet of things, blockchain, and Big Data, Data Mining intelligent technologies. The presentation of the transport and logistics complex as a cyber-physical system made it possible to consider it in the following aspects: - as an interaction of agents based on multi-agent systems (information interaction is organized on the principles of blockchain and the Internet of things); - as a continuous process of transport services, the improvement of the technology of which is proposed to be carried out using the process and design approaches, a mathematical description - through models based on the theory of mass service and coordination of economic interests of economic entities; - as an artificial intelligence system based on Big Data, Data Mining technologies, including the theory of pattern recognition, game theory, methods of self-organization of models (for example, the method of group accounting of arguments), cognitive analysis and others.
Subjective travel time and transport system design
Authors: Romanova Elena 
Published: October 2020

Abstract
There are many complex tasks to be solved and many different factors to be taken into account during the design process of the optimal transport system. On the one hand, we have computer-aided design which provides an algorithmically optimal solution, but it does not take into consideration the preferences of people who use both public and private transport every day. On the other hand, experience-based designing has a limited sphere of application. So, the best result is given by semi-automatic design with subsequent expert evaluation. This scientific work analyses eight factors which should be laid down in the automated optimization algorithm and in the expert evaluation. These elements include travel time, possible delays, number of transfers/changes in multimodal trips, distance to stops, possibility of changing a route, vehicle comfort, possibility of productive time spending in a trip and travel cost. The factors mentioned above have an impact on the subjective perception of travel time and on making a decision about choosing a route and a vehicle. Taking these factors into account during designing a transport system will help to create an optimal traffic plan, increase passenger loyalty to public transport and reduce the amount of personal transport on the road during peak hours.
Competency-based approach to the development of a regional anti-crisis strategy based on the development of transport and logistics infrastructure
Authors: Shafieva Yulia , Kovalenkova Olga , Tekucheva Svetlana 
Published: October 2020

Abstract
The purpose of this study is to develop a regional development strategy in the conditions of overcoming the crisis on the basis of a competency-based approach, taking into account the existing transport and logistics infrastructure. Theoretical studies were carried out using methods of system analysis and generalization of existing scientific developments in the field of development of regions and their territories. Methods of observation and statistical analysis were used to determine the dynamics of the development of indicators, assess the level of influence of crisis phenomena on the gross regional product, and also to identify the competitive advantages of a particular region. As a result of the study, the following results were obtained: - an analysis of the state of the regional economy revealed the conditions that impede its further progressive development; - the use of a competency-based approach made it possible to determine the unique regional advantages peculiar only to the Rostov Region due to the fact that they act superior to other regions and allow its enterprises to maintain a stable position in the target markets; - based on the competitive advantage system, the main sectors of the economy of the studied region are identified, which, thanks to the multiplier effect, are potentially capable of ensuring its sustainable development in the conditions of overcoming the crisis caused by the pandemic of a new coronavirus infection.
Cargo transportation and commodity flows management
Authors: Pokrovskaya Oksana , Fedorenko Roman , Kizyan Natalia 
Published: October 2020

Abstract
Introduction: the subject of the study is the development of recommendations for improving the planning and organization of freight transportation and operational work in the framework of goods flow management and the effective interaction of transport market participants in the value chain. The relevance of this topic is associated with the implementation of the priorities of the Long-Term Development Program of the Open Joint-Stock Company Russian Railways until 2025. Materials and methods: analytical, marketing, design methods. Materials of general access and official sites, own research. Results: Authors have considered priority tasks that require a scientific and practical solution: building a compliance system; improving the planning and pricing system of integrated transport services; updating the concept of rationing the operational work of railways; distribution of quotas between companies - operators for the transport of goods; rating of operators’ companies; criteria for evaluating logistics activities and balanced scorecard. Conclusions: When implementing the proposal, Russian Railways will formulate tools for improving the planning and organization of freight transportation and operational work as part of the management of goods flows and the effective interaction of transport market participants in the value chain.