bluuebunny/crossref_metadata_2025_split huggingface dataset:
Endoscopic Full Thickness Resection for Duodenal Neuroendocrine Tumor
Authors:   Harwani Y,   Tamboliya G,   Gajera N
Published: December 2019

Abstract
Introduction  Recently endoscopic full thickness resection (EFTR) device with inbuilt Ovesco clip and mounted snare has been introduced for lower gastrointestinal lesions but its feasibility for upper gastrointestinal lesions is still doubted and is not commercially available. We performed EFTR by using Ovesco clip followed by snare polypectomy for one cm duodenal neuroendocrine tumor (NET) which is 1.5-cm proximal to papilla.
Case 55-year-old male was incidentally detected to have biopsy proven 1 cm well-differentiated duodenal NET, 1.5-cm proximal to papilla in duodenum with positive DOTA positron emission tomography–computed tomography (PET–CT) scan. Endoscopic ultrasound suggestive of 9 mm × 4 mm lesion arising from submucosa and adherent to mascularis propria. Surgical treatment in the form of Whipple’s procedure, endoscopic submucosal dissection (ESD) and EFTR all modalities of treatment were discussed with patient. EFTR was preferred over ESD considering its small size and adherence to muscularis propria.
Discussion  Duodenal NET have to be removed irrespective of size and symptoms as they have potential to metastasize. Surgical duodenectomy or Whipple’s procedure are major surgical procedures which are associated with considerable morbidity for asymptomatic small (less than 2 cm) duodenal NET. ESD and EFTR are suitable options for small duodenal lesions. ESD may be challenging for lesion spread beyond submucosa and may lead to perforation of the bowel. Perforation in second part of the duodenum may lead to serious consequences. Compared to ESD, EFTR is a simple technique based on band and cut technique used for endoscopic mucosal resection (EMR) and safe for such type of patients.
Conclusion  EFTR is a suitable option than Whipple’s procedure for lesions up to 2 cm in duodenum, can be preferred over ESD for lesions spread beyond submucosa. EFTR is a relatively simple and safe technique.
Ultrasound assessment of the myofascial trigger point. A systematic review
Authors: G. López San Miguel , I. Barbe Mendibil , B. Torres Chica , J. Ríos Diaz 
Published: December 2019

Abstract
Introduction Myofascial pain syndrome is an important and prevalent public health problem. The lack of consensus on the diagnostic criteria, together with the scarce reliability of the manual detection of the manual detection of myofascial trigger points (MTrPs) point to the need to develop objective methods to enable confirmation of the presence of MTrPs. Ultrasound is an accessible method which enables the assessment of tissue properties in real time, helping to characterize the MTrP, understand its physiopathology and define its diagnosis.
Aims To identify observational studies researching the use of ultrasound in the assessment of MTrPs. Also, to learn about and compile the advances in the study of the characteristics of MTrPs and their sonographic diagnosis.
Material and Methods A systematic review was performed by two independent reviewers, searching biomedical databases using terms related with “ultrasound” and “trigger points”. Observational studies were selected evaluating the characteristics of MTrPs. Subsequently, an analysis of the diagnostic quality of studies was performed using the QAREL scale and a study of the methodological quality took place based on the Downs and Black scale. Furthermore, an assessment of the reproducibility of the acquirement of images was performed, via the analysis of the description of the ultrasound method. The risk of bias was evaluated according to the Cochrane guidelines.
Results 18 studies based on B Mode methods, elastography and Doppler, were included in the review. The anatomic regions which were most explored were the cervical area and the upper limb, evaluated in 14 of the 18 papers. The most common muscle was the upper trapezius (61%). Two articles were located corresponding to the lumbar region and one article concerned the lower limb. The analysis of the sonographic method showed a low level, 5 of the 9 items did not overcome 17% of fulfillment, in 3 papers the frequency was below 6%. The QAREL scale also displayed low levels, only 3 items out of 11. Inter-evaluator blinding, correct testing and statistical methods were fulfilled in over 50%. The mean score obtained by the studies in the Downs and Black scale was 5.4 points out of 10, ranging between 2 and 7 points. The risk of bias according to the Cochrane guidelines was mid- to high.
Conclusion Important steps have been taken in the study of the sonograhic characteristics of the MTrP, however, we are still far from standardizing the use of the same as a diagnostic method. The poor results in the quality analysis of the present study suggest caution in the interpretation of the present findings. Future research is necessary, including different anatomic regions, analytic methods, better defined exploration protocols and more robust reliability studies for the different methods available.
High-performance, semiconducting membrane composed of ultrathin, single-crystal organic semiconductors
Authors: Makita Tatsuyuki , Kumagai Shohei , Kumamoto Akihito , Mitani Masato , Tsurumi Junto , Hakamatani Ryohei , Sasaki Mari , Okamoto Toshihiro , Ikuhara Yuichi , Watanabe Shun , Takeya Jun 
Published: December 2019

Significance
Organic thin film transistors (OTFTs) are promising building blocks in next-generation electronic devices due to the compatibility with the solution process of organic semiconductors (OSCs). Generally, OTFT processes inevitably face the serious issue that the available substrates are limited to those that are solution-process compatible. In a striking contrast to conventional OTFT fabrication processes, we successfully demonstrate simple water exfoliation together with a transfer method for solution-processed organic single-crystal semiconductors. An ideal single-crystalline form can be maintained during the process, which results in excellent electronic performance. The methodology presented in this study allows the ideal production of OTFTs on a wide range of destination substrates with sufficient scalability and expands the possibility for OSCs to be employed in printed electronic devices.
Principles of forest biotechnology.
Authors: Meilan R. , Kirst M. 
Published: December 2019

Abstract

This chapter describes the principles of forest biotechnology. To genetically engineer a tree, a single, transformed cell must be regenerated into a whole plant. Agrobacterium tumefaciens is commonly used as a vehicle to transform (introduce genetic material) into the chromosome of a plant cell, but other approaches, such as biolistics, are available. The two general approaches to regenerating a plant are organogenesis and embryogenesis. The latter is the preferred route but has only been accomplished with a limited number of tree species, and is a labour-intensive and time-consuming process.
Final report, on-going key comparison BIPM.QM-K1, ozone at ambient level, comparison with ISCIII, March 2019
Authors: Viallon Joële , Moussay Philippe , Wielgosz Robert , Abad Patricia , Nunez-Corcuera Beatriz , Miguel Jose Miguel de , Morillo Pilar 
Published: December 2019

As part of the ongoing key comparison BIPM.QM-K1, a comparison has been performed between the ozone national standard of the Instituto de Salud Carlos III (ISCIII) and the common reference standard of the key comparison, maintained by the Bureau International des Poids et Mesures (BIPM). The instruments have been compared over a nominal ozone amount-of-substance fraction range of 0 nmol/mol to 500 nmol/mol.

Main text

To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/.
The final report has been peer-reviewed and approved for publication by the CCQM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).
Spatial-symmetry violating electromagnetic fields corrected by nonlinear Lagrangian
Authors: Shibata Kazunori 
Published: December 2019

Abstract
We investigate a general nonlinear electromagnetic Lagrangian belonging to a subclass of the Plebański class. Depending on the form of nonlinear Lagrangian model, in an electrostatic problem, not only the electric field but also the electric flux density can vary from that given by linear classical electromagnetism. The variance is a correction which stems from the nonlinearity of Lagrangian. The nonlinear correction is a divergence-free field and possesses a mathematical vector potential. By considering a two charge system with a non-perturbative approach, we derive a necessary condition on nonlinear Lagrangian such that the nonlinear correction of the electric flux density becomes zero in the entire space. Several frequently considered nonlinear Lagrangian models do not satisfy this condition. As another important result, we show that the vector potential of the nonlinear correction violates mirror symmetry.
Influence of low-temperature atmospheric pressure plasma on the vital functions of microorganisms
Authors: Savinov V P , Yakunin V G , Karpukhina O V , Inozemtsev A N , Timoshenko V Y , Riaby V A 
Published: December 2019

Abstract
Experimental research on inactivating various types of microorganisms with low-temperature plasma at atmospheric pressure demonstrates great advantages of this method. It is shown that when treating the cells with cold plasma for 3 minutes by using a compact plasma source (plasmatron) a partial or complete disruption of the functional activity of Paramecium caudatum cells occurs. We have found out that plasma treatment for 5 minutes suppresses completely the vital functions of pathogenic microorganisms such as Mucor, Fusarium, Aspergillus and Bacillus mesentericus cells.
Electromagnetic and gravitational waves conversion in a nonlinear dielectric medium by intense light source irradiation
Authors: Pustovoit V I , Gladyshev V O , Gorelik V S , Kauts V L , Kayutenko A V , Morozov A N , Fomin I V , Sharandin E A , Gladysheva T M , Portnov D I 
Published: December 2019

Abstract
Various types of gravity wave sources were considered in this paper. It is proposed to use the effect of mutual conversion of electromagnetic and gravitational waves in a nonlinear optical dielectric medium irradiated by an intensive light source as a perspective method of generating gravitational-wave radiation.
Change in baric properties with decreasing size of germanium nanocrystal
Authors: Magomedov M N 
Published: December 2019

Abstract
The equation of state P(v/v
o) and the baric dependences of both the lattice and the surface properties for germanium macro- and nanocrystals were calculated using the Mie-Lennard-Jones pairwise interatomic potential and the RP-model of a nanocrystal. It is shown that at a certain value of the relative volume (v/v
o)0, the isothermal dependences P(v/v
o) for the macro- intersect with those for the nanocrystal. At the intersection point (at (v/v
o)0), the surface pressure becomes zero. The value (v/v
o)0 decreases both with an isomorphic-isomeric rise in temperature, and with an isomorphically-isothermal decrease in the number of atoms in a nanocrystal, or with an isomeric-isothermal deviation of the shape of the nanocrystal from the energy-optimal shape (a cube for the RP-model). Based on the equation of state obtained, the change in 23 properties of Ge was studied both at an isochoric (v/v
o = 1) and at an isobaric (P = 0) decrease in the number of atoms in a nanocrystal at temperatures of 100, 300, and 1000 K.
Metallographic research into the quality of X15N27T3MR-VD steel wire (EP700-VD)
Authors: Averina Yu M , Naumkina V A , Nedashkovsky K I , Nikolaenko O A , Semenova A V 
Published: December 2019

Abstract
The purpose of this paper is to report on the results of metallographic research into the quality of X15N27T3MR-VD steel wire (EP700-VD). The reason for the research was an oxidized zone with intergranular cracking which had been detected on the surface of the wire. To remove the defects, a variety of chemical methods were applied to the surface. As the research shows, after the chemical treatment methods such as winding springs, blowing them with corundum, etching in a mixture of HNO3 and HF, and electropolishing were applied to the surface, the defects were removed completely.
Symmetrical slot line with a dielectric insert in the slot
Authors: Klyuev S B , Nefyodov E I , Potapov A A 
Published: December 2019

Abstract
The electrodynamic properties of a symmetric slot line with a dielectric insert are investigated. A numerical analysis of the transmission line is performed using the finite element method. The dispersion matrix elements of the transmission line are presented. It is shown that the model of a symmetric slot line with a dielectric insert can extend the operating frequency band more than 2 times.
Practical uses of high-durability DC arc plasmatrons
Authors: Yakunin V G , Riaby V A , Savinov V P 
Published: December 2019

Abstract
The novel DC arc plasmatrons, with tungsten rod cathodes and nozzle anodes, and ways of their application are described in this article. The initial successful device was a T-plasmatron with a T-form of its gas-flow channels. Its specific anode erosion rate was lowered by four orders of magnitude, as compared with traditional arc plasmatrons. The result of a specific anode design, arranging technological gas and plasma-forming gas interactions, decreased this parameter to 4·10−10 g/C. This plasmatron was used in several technological processes, including cleaning the flow of Diesel engine exhaust, etching, and depositing different materials. After these experiments, the A-plasmatron was created, which had a generally axisymmetric form with a three-times greater ability for technological gas activation as compared with the T-plasmatron. The A-plasmatron was also used in the above-mentioned technological processes and demonstrated higher possibilities for each process. The extremely clean plasma flow of this plasmatron was studied using integral and local plasma diagnostic results, which have indicated its acceptable application for several processes, including the rather effective and interesting biomedical interactions with human wounds, vegetables, white straw crops and their products.
Simulation of deformation processes in upsetting
Authors: Solomonov K N , Tishchuk L I 
Published: December 2019

Abstract
The article describes an analysis of universal and specialized software complexes. We consider the «equi-theory» used for simulating the metal flow pattern. The software complex EQUI is applied to computer simulation of the metal flow pattern. We show how it is used for complex multi-contour workpieces.
Polydisperse vapour-droplet mixture dynamics model with phase transitions, fragmentation, and coagulation of droplets
Authors: Tukmakov A L , Tonkonog V G , Tukmakova N A , Arslanova S V 
Published: December 2019

Abstract
This work presents mathematical model and numerical method for polydisperse vapour-droplet mixture current description. A system of Euler equations for the carrier medium and disperse phase motion is solved via Mac-Cormack’s explicit method based on operator dimensional splitting and deferred correction scheme. The results of vapour-droplet flow calculations in cylindrical conduits are shown.
Irreversible protein transformation of multi-component animal raw materials systems under the influence of microbiological and technical factors
Authors: Boldyrev V , Ivankin A , Oliferenko G , Baburina M , Vostrikova N , Kulikovskii A , Tunieva E 
Published: December 2019

Abstract
In order to change the composition of natural food systems based on animal raw materials, we studied some features of thermodynamic changes of proteins under the influence of technological factors in the presence of biocultures. We revealed the important features of the influence of denaturation temperature and enthalpy of thermal transitions of myofibrillary proteins used in the technology of obtaining sodium chloride products, which is important for the effective optimization of parameters for obtaining high-quality products.
Numerical calculation of asymmetric antireflection microstructures spectral transmission dependency on polarization
Authors: Bushunov A A , Tarabrin M K , Lazarev V A 
Published: December 2019

Abstract
In this paper we performed a numerical analysis of middle infrared antireflection microstructures with elliptical holes. We used COMSOL Multiphysics finite element method analysis commercial software. The calculation results revealed the qualitative influence of structure surface imperfections and non-symmetry on transmission spectra for different polarizations. This fact has to be taken into account for the design of polarization-independent antireflection microstructures.
Numerical analysis of three-dimensional leukemia model’s equilibrium points
Authors: Domashenko Sofia , Alekhin Fedor 
Published: December 2019

Abstract
The results of numerical analysis of a mathematical model for chronic myelogenous leukemia (CML) equilibrium points quantity are presented. Considering a control example, the condition for the system without bistable equilibrium points was reached, so the system is supposed to have only those equilibrium points which is are asymptotically stable.
Research of the isofrequency temperature dependences of the Raman spectra near the phase transition point in quartz
Authors: Gorelik V S , Demeshkin F S , Pyatyshev A Yu 
Published: December 2019

Abstract
The work analyzes the isofrequency temperature dependences of Raman scattering near the phase transition point in quartz. Theoretical dependences for the spectral intensity of inelastic light scattering are derived. Coefficients for these dependencies were obtained on the basis of experimental data.
Some phase peculiarity in reflection of EM wave from boundaries between two isotropic media
Authors: Skripnik F V , Zadorozhnyi N A , Korogodina E V , Timchenko S L 
Published: December 2019

Abstract
A method of interferometric registration of the phase change of a polarized EM wave reflected from the boundaries between dielectric media is proposed. The method is suitable for determining how the phases of the waves reflected from the boundaries between isotropic media are affected by changes in the polarization plane and the angle of incidence of the wave. The interference pattern from two types of linearly polarized waves, one polarized in the plane of incidence (p-wave), another in a perpendicular plane (s-wave), was observed as interference of thin films in reflected light. This observation showed that the phase of the reflected s-wave from an optically denser medium was changed to the opposite for all tested angles of incidence. On the contrary, the phase of the reflected p-wave depends on the angle of incidence. The phase of reflected p-wave does not change for the range of the incidence angles from 0 to the Brewster angle (αB
) and becomes opposite for the range between αB
and π/2.
Rationalization of plasma piston’s particles parameters in a coaxial railgun
Authors: Sharaborova E S , Gerasimov Yu V , Maslov A G 
Published: December 2019

Abstract
This article is devoted to collisionless plasma particle motion in a coaxial railgun bore. Numerical modeling results showed that 2 types of motion can be realized in this system. Plasma particle parameters such as mass and charge were rationalized according to the types of motion and their roles in throwing body acceleration. The most effective parameters of the whole system were obtained.
Solution of thermoelasticity problems for solids of revolution with transversal isotropic feature and a body force
Authors: Ivanychev D A , Levina E Y 
Published: December 2019

Abstract
The paper describes a method for determining a stress-strain state of transversally isotropic solids of revolution, which are simultaneously influenced by external load and a body force within a steady-state temperature field. The final condition of the body is determined by the combination of these 3 factors, which are also affecting each other. The boundary conditions method is applied to determine the final condition influenced by exposure to an external load and temperature; the inverse method is applied to determine the condition affected by and resulted from influence of the body force. Methodologies were developed to form the bases of internal and boundary conditions related by isomorphism, and the relations that define them were formulated. Problems were solved for a circular cylinder of rock and for a solid of revolution with nontrivial form. The results are presented graphically.
Observation of the Talbot carpet for waves on the liquid surfac
Authors: Morozov A N , Moskvina I V , Skuibin B G , Smirnov E V 
Published: December 2019

Abstract
In this paper, the first observation of the Talbot effect for waves on the surface of a liquid is made. The diffraction of flat surface waves in a ditch with water on a diffraction grating containing 8 slits made it possible to obtain a clear image of the Talbot carpet on the surface of the water behind the grating. The Talbot length observed in the experiment coincides with the data of theoretical calculations.
Demonstration of special relativity effects with specialized software
Authors: Kashnikov A V , Gusmanova A A , Kiktenko E O 
Published: December 2019

Abstract
A software development project designed to demonstrate some effects of the special theory of relativity (STR) is considered. The software visualizes a uniform relativistic motion of one inertial reference frame, associated with a rocket, relative to another inertial reference frame, associated with the ground. The main idea behind the visualization is to reduce the speed of light down to perceived value, such that relativistic time dilation and relativistic length contraction effects can be explored. The basic mathematical expressions describing the model are given, and the interface of the software is presented. It is expected that the developed software will help to provide intuition behind relativistic mechanics for students starting their immersion in this topic.
Collective excitations in two-dimensional fluid with dipole-like repulsive interactions
Authors: Mistryukova L A , Kryuchkov N P , Khrapak S A , Golyak I S , Yurchenko S O 
Published: December 2019

Abstract
Collective excitations in a two-dimensional fluid with repulsive dipole-like interactions are systematically studied by molecular dynamics simulations. A two-oscillator model is used to reconstruct dispersion curves and to measure q-gap boundary values in the dispersion relation of the transverse (shear) mode. Functional form for the dependence of the q-gap boundary value on the coupling parameter is suggested. The results obtained can be used in future investigations of collective excitations in fluids, especially in two-dimensional cases.
The use of HTS-tape as a sample for a laboratory workshop
Authors: Goshin P V , Infimovsky Yu Yu , Motylev V A , Sokolov R A , Urakov D V 
Published: December 2019

Abstract
The suitability of the process use HST tape in the development of a laboratory workshop on general physics course. A sample transfer test bench for the HST tape included: a vessel with liquid nitrogen, a stabilized power supply, a microvoltmeter to measure the potential difference on the sample, a thermocouple (copper/copper-nickel) and a millivoltmeter to measure thermoelectric effect. The temperature of the sample and the potential difference on it were measured simultaneously.