bluuebunny/crossref_metadata_2025_split huggingface dataset:
Intermediate-High Risk Pulmonary Embolism
Authors: Mirambeaux Rosa , León Francisco , Bikdeli Behnood , Morillo Raquel , Barrios Deisy , Mercedes Edwin , Moores Lisa , Tapson Victor , Yusen Roger D. , Jiménez David 
Published: December 2019

AbstractLimited information exists about the prevalence, management, and outcomes of intermediate-high risk patients with acute pulmonary embolism (PE). In a prospective cohort study, we evaluated consecutive patients with intermediate-high risk PE at a large, tertiary, academic medical center between January 1, 2015 and March 31, 2019. Adjudicated outcomes included PE-related mortality and a complicated course through 30 days after initiation of PE treatment. Repeat systolic blood pressure (SBP), heart rate (HR), brain natriuretic peptide (BNP), and cardiac troponin I (cTnI) measurements, and echocardiography were performed within 48 hours after diagnosis. Among 1,015 normotensive patients with acute PE, 97 (9.6%) had intermediate-high risk PE. A 30-day complicated course and 30-day PE-related mortality occurred in 23 (24%) and 7 patients (7.2%) with intermediate-high risk PE. Seventeen (18%) intermediate-high risk patients received reperfusion therapy. Within 48 hours after initiation of anticoagulation, normalization of SBP, HR, cTnI, BNP, and echocardiography occurred in 82, 86, 78, 72, and 33% of survivors with intermediate-high risk PE who did not receive immediate thrombolysis. A complicated course between day 2 and day 30 after PE diagnosis for the patients who normalized SBP, HR, cTnI, BNP, and echocardiography measured at 48 hours occurred in 2.9, 1.4, 4.5, 3.3, and 14.3%, respectively. Intermediate-high risk PE occurs in approximately one-tenth of patients with acute symptomatic PE, and is associated with high morbidity and mortality. Normalization of HR 48 hours after diagnosis might identify a group of patients with a very low risk of deterioration during the first month of follow-up.
Segmental Arterial Mediolysis: A Vasculitis Mimic
Authors: Bilal Saira , Alkhatib Ayad , Solow E. Blair , Kalva Sanjeeva P. 
Published: December 2019

Abstract
Background Segmental arterial mediolysis (SAM) is a rare noninflammatory vasculopathy. The purpose of this report is to describe the clinical data of six patients diagnosed with SAM, discuss key elements for diagnosis, and highlight the differences between SAM and vasculitis. We also propose a modification to the criteria developed by Kalva et al for the diagnosis of SAM.
Methods This is a retrospective study approved by the Institutional Review Board and included patients diagnosed with SAM between January 2008 and December 2016. Eleven patients were identified, of whom six (four males with a median age of 59.5 years) had complete data per the guidelines proposed by Kalva et al and were thus included. Data on patient’s clinical presentation, laboratory and imaging findings, and outcomes were collected.
Results Presenting symptoms included abdominal pain, flank pain, and bloody stools. Five patients had negative antinuclear antibodies (ANAs) and one had positive ANAs with negative subserologies. C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR) were normal except for an elevated CRP in two patients with organ infarction. The superior mesenteric and renal arteries were most commonly involved. The most common vascular abnormalities were dissection, pseudoaneurysm, thrombosis, and wall thickening. Two patients received endovascular repair for hepatic artery aneurysms. During the follow-up (range: 3–36 months), two patients developed a new aneurysm or dissection.
Conclusion The long-term prognosis of SAM appears to be favorable. Vascular intervention is only needed for patients with impending vascular compromise. We propose that the criteria developed by Kalva et al could be modified to include patients with elevated ANA but negative subserologies and elevated CRP and ESR in the presence of organ infarction.
A pathway to ultracold bosonic 23Na39K ground state molecules
Authors: Voges Kai K , Gersema Philipp , Hartmann Torsten , Schulze Torben A , Zenesini Alessandro , Ospelkaus Silke 
Published: December 2019

Abstract
We spectroscopically investigate a pathway for the conversion of 23Na39K Feshbach molecules into rovibronic ground state molecules via stimulated Raman adiabatic passage. Using photoassociation spectroscopy from the diatomic scattering threshold in the a
3Σ+ potential, we locate the resonantly mixed electronically excited intermediate states

∣

B

1

Π
,
v
=
8
〉

and

∣

c

3

Σ

+

,
v
=
30
〉

which, due to their singlet–triplet admixture, serve as an ideal bridge between predominantly a
3Σ+ Feshbach molecules and pure X
1Σ+ ground state molecules. We investigate their hyperfine structure and present a simple model to determine the singlet–triplet coupling of these states. Using Autler–Townes spectroscopy, we locate the rovibronic ground state of the 23Na39K molecule (

∣

X

1

Σ

+

,
v
=
0
,
N
=
0
〉

) and the second rotationally excited state N = 2 to unambiguously identify the ground state. We also extract the effective transition dipole moment from the excited to the ground state. Our investigations result in a fully characterized scheme for the creation of ultracold bosonic 23Na39K ground state molecules.
Overview of the International Conference on Applied Physics, Information Technologies and Engineering – APITECH - 2019
Authors: Kovalev Igor V , Voroshilova Anna A , Borisova Ekaterina A 
Published: December 2019

Abstract
The overview describes the main directions and results of the International Conference APITECH-2019 held in Krasnoyarsk in September 25-27, 2019. It gives the details about the participants and the proceedings.
Substantiation of uranium mining by ISL based on a geotechnological modeling
Authors: Sadykov M P 
Published: December 2019

Abstract
This article focuses on the use of geo-technological modeling techniques for mine planning and optimizing the extraction of uranium reserves. In the course of the research, there is calculated a time to achieve 80% of the extraction of uranium from each predictive block within an ore-body. These results of uranium mining are analyzed for the entire field based on an annual uranium extraction from each settlement block, taking into account a target total production, the productivity of factory for the enrichment of productive solutions and requirements for the concentration of uranium in working solutions.
Complex of technical tools for fish cells cultivation
Authors: Zavyalova E A , Droshnev A E , Alontseva D A , Bulina K Y 
Published: December 2019

Abstract
The solution of problems of viral diseases of fishes which are quite often arising in an aquaculture requires holding diagnostic actions with use of cell cultures, at the same time creation of new cell lines will allow to expand researches as much as possible. Technological means for simplification and mechanization of preparation of cellular suspension and also for large-scale cultivation of the continuous cell cultures in a monolayer are presented in this article. The offered devices are intended for laboratory or for industrial use as a part of technology park for the solution of tasks in the field of bionanotechnology.
Application of focused electromagnetic fields in satellite construction processes and fault diagnostics
Authors: Testoyedov N A , Romanov A G , Danilov I Yu , Sedel’nikov Yu E , Veden’kin D A 
Published: December 2019

Abstract
Near field focused antenna properties most relevant in terms of their practical application are briefly presented. The process and diagnostic applications already implemented as satellite construction practices at Academician M.F. Reshetnev Information Satellite Systems as well as their promising applications are considered.
Transversely modulated wave packet
Authors: Salomatov V N 
Published: December 2019

Abstract
The wave packet consisting of two harmonic plane waves with the same frequencies, but with different wave vectors is considered. The dispersion relation of a packet is structurally similar to the dispersion relation of a relativistic particle with a nonzero rest mass. The possibilities of controlling the group velocity of a quasi-monochromatic wave packet by varying the angle between the wave vectors of its constituent waves and of creating a one-dimensional spatial structure in the region of wave packet propagation are discussed. The interaction of two transversely modulated wave packets is considered.
On the controllability of a quantum object
Authors: Valishin Nail T 
Published: December 2019

Abstract
On the basis of the V-function method, the physical statement of controllability as a wave motion of an object to a new state is carried out. It follows from the V-function method that the wave motion of an object is inextricably linked with its trajectory. It is shown that controllability as an object leaves the state occurs in the direction of the gradient of the wave function.
Comparative analysis of cats’ lymphocytes structural features with and without retroviral infection using atomic force microscopy
Authors: Krasnikova E S , Artemev D A , Krasnikov A V , Stolbovskaya O V , Kostishko B B 
Published: December 2019

Abstract
The results of the comparative analysis of morphometric and elastic parameters of the fixed lymphocytes from intact and infected with viral immunodeficiency and leukemia cats using atomic force microscopy are presented. It is found that the adhesive properties and the roughness of the cell surface of cats’ lymphocytes with FeLV and FeLV - FIV infection are reduced by 27 – 45 % and 19 – 32 %, respectively. These indicators in the lymphocytes of FIV infected cats did not significantly differ from the intact cats’ lymphocytes. An increase in the Young’s modulus of lymphocytes in cats with retroviral infection of 9 - 16 % compared to the control has been shown. It is found that lymphocytes from cats with retroviral infection are characterized by a decrease in volume at 36 - 77 % compared to the control cats’ lymphocytes. Intact animals’ lymphocytes have a domed shape, whereas infected cats’ cells have a greater perimeter and length with reduced height. Peculiarities of blood lymphocytes in FIV, FeLV and FeLV - FIV infected cats can be important in the study of immunological mechanisms in the retrovirus pathogenesis.
Electrical switching in metal-oxide-metal structures based on anodic niobium oxide
Authors: Pergament A L , Boriskov P P 
Published: December 2019

Abstract
Nonlinear current-voltage (I–V) characteristics with S-type negative differential resistance, as a characteristic feature of the switching effect, are inherent in a variety of transition metal oxides, niobium oxide included. Although this phenomenon has been known for a long time, recent proposals to use oxide-based switching devices as elements of oscillatory neural networks have resumed the interest in this area. In this work, electrical switching in sandwich structures based on anodic films of niobium oxide is studied. After being electroformed, these structures exhibit S-shaped I–V characteristics. As the temperature increases, the threshold voltage decreases, presumably tending to zero at a critical temperature T
0, which correlates with the temperature of metal–insulator phase transition of niobium dioxide. Channels consisting of NbO2 are formed in the initial anodic films during the process of electroforming.
On the wave-particle duality within the framework of modeling single-photon interference
Authors: Davydov A P , Zlydneva T P 
Published: December 2019

Abstract
The general results of constructing and modeling the photon wave function in the coordinate representation in the framework of quantum mechanics are presented in order to explain single-photon interference phenomena, in particular Young’s experiment. The relevance of this function is emphasized in connection with modern single-photon and two-photon experiments. The necessity of replacing the explanation of obtaining coherent light sources using the concept of a train of supposedly real electromagnetic waves emitted by one atom, by the conditional emission by this atom of the photon wave function in the coordinate representation, which then experiences diffraction and interference, is substantiated. A single-photon wave function is simulated based on the consideration of the electric dipole radiation of an atom in classical electrodynamics, and a conclusion is drawn on the possibility to explain Young’s experiment. It is argued that although the photon wave function (as well as of particles having mass) is not a physical object, the application of this function significantly weakens the problem of wave-particle duality of light. It is assumed the “nature” of this function reflects the properties of a physical vacuum, but new experiments are required to clarify it.
Registration of the optical output signal of distributed mechanoluminescent impulse pressure sensors
Authors: Tatmyshevskiy K V , Pavlov D D 
Published: December 2019

Abstract
Distributed mechanoluminescent pulse pressure sensors are described in the article. The definition of mechanoluminescent sensors is given, early studies of this phenomenon and their results are also mentioned. On the basis of these studies, a mathematical model of transformation in a distributed mechanoluminescent sensor is constructed. The substantiation of the choice of a mechanophosphor for experimental studies is given. The design of a distributed mechanoluminescent sensor is described, a laboratory bench is developed and assembled. The article describes experiments to obtain and register the glow of the sensor. Conclusions are made about the results of studies and the possible use of this type of sensors.
Graphene polymorphs
Authors: Belenkov M E , Kochengin A E , Chernov V M , Belenkov E A 
Published: December 2019

Abstract
Ab initio calculations of twelve structural varieties of graphene were carried out using the density functional theory method. The structure of non-hexogonal graphene species contains topological defects 4, 5, 7, 8, 10, or 12, which deform the layers. The sublimation energy of graphene polymorphs decreases with increasing degree of layer structure deformation compared to hexagonal graphene. In the electronic structure of graphene layers L4-12 and L4-6-8e at the Fermi level, there are band gaps 0.59 and 0.37 eV wide, so these layers must be semiconductors.
Low-noise hybrid frequency synthesizers for 5G technology
Authors: Romashov V V , Yakimenko K A , Doktorov A N 
Published: December 2019

Abstract
This paper presents the results of structural design and analysis of the noise characteristics of a low-noise hybrid frequency synthesizer based on direct digital and indirect synthesis methods for using as a shaper of harmonic signals for fifth generation telecommunication systems transceivers. The hybrid synthesizer is based on a phase-locked loop (PLL) with DDS operating on fundamental frequency images. Due to this, the hybrid synthesizer generates a wide range of output frequencies with high frequency resolution, as well as a low level of phase noise and discrete side components of the spectrum of the output signal.
Magnetic nanoconstructions of iron oxides coated with arabinogalactan functionalized with DNA aptamer
Authors: Stolyar S V , Chekanova L A , Yaroslavtsev R N , Komogortsev S V , Gerasimova Yu V , Bayukov O A , Volochaev M N , Iskhakov R S , Garanzha I V , Kolovskaya O S , Bairmani M Sh , Zamay T N 
Published: December 2019

Abstract
New composite nanoparticles for biomedical applications have been manufactured. The particles consist of an anisomeric magnetite core coated with arabinogalactan and are functionalized with cameras for As-14 ascites cells (Ehrlich carcinoma). The binding of ascitic Ehrlich carcinoma cells to magnetic nanoparticles was evaluated using fluorescence microscopy.
The comparative analysis of the solid-state 31P NMR spectra of Re-Pt vinylidene complexes
Authors: Smolyarov K T , Volkov N V , Matsulev A N , Kondrasenko A A 
Published: December 2019

Abstract
The two vinylidene complexes Cp(CO)2 RePt(μ-C=CHPh)(PPh3 )(CO) and Cp(CO)2 RePt(μ-C=CHPh)(PPh3 )2
and their precursors PPh3
and P(PPh3 )4
were studied by solid-state nuclear magnetic resonance. We analysed 31P cross-polarization spectra acquired in static conditions and with magic angle spinning. The chemical shift tensors of each sample were determined by fitting their spectra using SIMPSON simulations.
Effect of nanoparticles in growth of test - bacteria
Authors: Stolyar SV , Chekanova LA , Yaroslavtsev RN , Ladygina VP , Tirranen LS 
Published: December 2019

Abstract
Confident effect of five magnetic composite nanoparticles (FeP@Ag, FeP@Pd, CoP, NiP, Fe2O3@AГ) on growth of test bacteria colonies (Acinetobacter baumannii, Еscherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, Staphylococcus aureus) in five replicates each is considered. Reliable inhibitors of colonies of all five test bacteria were nanoparticles FeP@Ag. CoP nanoparticles are reliable inhibitors of growth of 4 test bacteria (except for test bacteria Escherichia сoli). NiP nanoparticles are reliable inhibitors of growth of 2 test bacteria: Escherichia сoli and Klebsiella pneumoniae. Bacteria Escherichia сoli were most sensitive to the effect of magnetic nanoparticles; and bacteria Pseudomonas aeruginosa and Staphylococcus aureus were most resistant to the effect of magnetic nanoparticles. The prospects of the method are in the possibility of multiple reuse of the magnetic particles with antimicrobial properties for bacterial decontamination of the studied sources of water and removal of magnetic nanoparticles from the treated liquids by electromagnet. The method can find use in water treatment facilities for household, Industrial and medical wastes.
Modeling the temperature distribution of multi-chip integrated circuits combining Wire-Bond and Flip-Chip technologies
Authors: Boriskov P P , Ershova N Yu , Putrolaynen V V , Seredov P N , Belyaev M A 
Published: December 2019

Abstract
On the basis of finite-element computer modeling, the temperature distribution of a multi-chip integrated circuit was calculated in System on Package configuration, combining Wire-Bond and Flip-Chip technologies. Technical recommendations are suggested for choosing a compound, taking into account the continuous layer of the compound separating the active elements and the heat sink.
Morphophysiological changes in the intact surface of rat skin under the application of silicon and gold nanoparticles
Authors: Kondratenko E I , Lomteva N A , Timoshenko V Yu , Alykova A F , Kasimova S K , Zavestovskaya I N , Yakovenkova L A 
Published: December 2019

Abstract
The effect of a course application of suspension of porous silicon and gold nanoparticles on the skin of female rats on the level of free radical oxidation and catalase activity in the skin homogenate was studied. MesoPSi samples were formed using the standard method of electrochemical etching of p-type c-Si wafers with a surface orientation of (100) and a specific resistance of 1-5 mOm x cm in a solution of hydrofluoric acid and ethanol (HF (50%): C2H5OH = 1: 1) at an etching current density of 60 mA / cm2 for 1 hour (45 minutes-hour). After this, mesoPSi films were separated from the silicon substrate by a short-term increase in the current density to 600 mA / cm2. Aqueous suspensions of porous silicon nanoparticles with sizes of the order of 100 nm were obtained by mechanical grinding of mesoporous silicon films in water. Aqueous suspensions of gold nanoparticles with an average size of 30-50 nm were obtained by laser ablation of gold targets in deionized water. A suspension of silicon and gold nanoparticles in physiological saline at a concentration of 0.2 mg / ml was applied once a day in the form of a thin layer on a shaved area of the skin of animals (interscapular region) and left to dry completely. Applications were carried out for 10 days. The studied silicon and gold nanoparticles did not change the initial content of malondialdehyde and catalase activity in the skin tissue but contributed to the activation of the rate of spontaneous lipid peroxidation.
Quadratic cosine-Gauss beams – the new family of localized solutions of the paraxial wave equation
Authors: Plachenov A B , Dyakova G N 
Published: December 2019

Abstract
We propose a new class of localized solutions of the paraxial wave equation. They have a form of a product of a Gaussian term and an amplitude which contains only elementary coordinate functions. Solutions are obtained by summing of the quadratic Bessel–Gauss beams with odd indices. Due to the configuration of the obtained solutions, we named them quadratic cosine-Gauss beams.
Realization of an educational tool dedicated to teaching the fundamental principles of photovoltaic systems
Authors: Hassouni Bennacer El , Haddi Ali , Chekenbah Hamid , Amrani Abdellatif G , Ikonnikov O A , Danichev A A , Tsarev R Y 
Published: December 2019

Abstract
This article describes a low-cost educational tool dedicated to teaching basic knowledge of solar energy and photovoltaic applications for first-year students at the poly disciplinary faculty of Larache. This experimental teaching method allows students to concretize all the achievements of the theory and the results obtained during the simulations of the PV systems on a simulation tool, so, it’s an opportunity of sensitization and integration of the students in a world in full change towards a purely green system. The realized system is simple to use, robust, easy on the move, economical and not spacious. It offers students the opportunity to acquire the fundamentals of photovoltaic energy. Several models of practical work are developed to give an overview of the learning exercises that could be done by students to discover the multiple applications of photovoltaics. For example, many cases of study can be treated such as the electrical characterization of PV panels with different technologies, the effect of irradiation and temperature, the effect of shading, the effect the inclination and orientation and finally the calculation of the efficiency of the PV panel.
Radiopulse generation in dispersive nonlinear transmission lines with gas dischargers
Authors: Priputnev P V , Romanchenko I V , Rostov V V 
Published: December 2019

Abstract
The problem of excitation of high-frequency oscillations in a transmission line with gas dischargers is considered. The main patterns of the generation of radio pulses during the propagation of a shock electromagnetic wave in lines with dispersion and gas dischargers are revealed. The conditions for the most efficient conversion of energy of a video pulse into energy of a radio pulse are found.
Modeling of nonlinear shock deformation of passenger car bodies with emergency exits
Authors: Shorokhov S G , Bondarenko O I , Lebedev V A 
Published: December 2019

Abstract
Original design solutions for passenger car bodies equipped with emergency exits have been proposed. The operability and safety of the proposed structures is evaluated based on the modeling of the load bearing structures in emergency situations. Two options for the development of an emergency are considered: a collision with a car on a level crossing and rollover. The analysis of loading was performed by the finite element method in a dynamic nonlinear formulation. The finite element models of the supporting structures of the bodies of passenger cars with evacuation exits and without them have been developed. Model verification was performed by field bench tests. The dynamic loading was estimated in a dynamic setting by the explicit integration method based on the central difference method with keeping the accelerations constant within the step and quadratic approximation of the displacement vector for three consecutive moments of time. The data obtained as a result of the study on the stress-strain state of the supporting structure indicate the operability and safety of the proposed solutions. A variant of the body structure of a double-decker car is protected by a patent for a utility model.