bluuebunny/crossref_metadata_2025_split huggingface dataset:
Técnica Artroscópica Del Pinzamiento Ulnocarpiano
Authors: Lucas Francisco Javier , Guisasola Eva , Carratalá Rogelio , Miranda Ignacio 
Published: November 2019

ResumenEl pinzamiento ulnocarpiano es una de las causas más frecuentes de dolor en el borde ulnar de la muñeca. Se trata de una patología degenerativa producida por la impactación crónica del cúbito contra el fibrocartílago triangular y la parte ulnar del carpo. La evolución natural de esa enfermedad es progresiva y en diferentes etapas. La técnica quirúrgica consiste en determinar en qué etapa nos encontramos e ir añadiendo gestos quirúrgicos en función de la etapa siendo el objetivo del tratamiento quirúrgico realizar una descompresión de la columna ulnar y reparar las lesiones asociadas. Presentamos la técnica quirúrgica que se realiza desde la fase más inicial hasta la afectación de toda la columna ulnar.
Tratamiento rehabilitador en las inestabilidades mediocarpianas palmares
Authors: Guisasola Lerma Eva , Lucas Garcia Francisco Javier 
Published: November 2019

ResumenLas inestabilidades mediocarpianas son una patología provocada por la descoordinación en el movimiento entre la hilera proximal y distal del carpo. Las más frecuentes son las inestabilidades palmares (PMCI) y suelen ocasionar un dolor y un clunk muy característico con determinados movimientos de la muñeca. Su diagnóstico en ocasiones no es fácil ya que no existen pruebas de imagen diagnósticas específicas. La primera opción de su tratamiento siempre será conservadora a través de rehabilitación. Actualmente no existen estudios randomizados con series amplias en cuanto a resultados de los tratamientos propuestos dado que no es una patología muy frecuente. En este artículo, se propone un protocolo de trabajo en base a la revisión de los estudios biomecánicos existentes hasta el momento actual.
Emerging Role of Palliative Care in Patients with Advanced Liver Disease
Authors: Jordan Roberta I. , Tandon Puneeta 
Published: November 2019

AbstractAdvanced liver disease is increasing in mortality and morbidity worldwide, as a result of growing alcohol consumption, obesity, and viral hepatitis infection. Alongside efforts to reduce these factors, it is clear that we must identify the considerable palliative care needs of these patients in order to improve quality of life and reduce symptom burden. Our review focuses on the current state of palliative and end-of-life care for patients with advanced liver disease, the significant associated symptom burden in this disease group, identified level of involvement and potential benefits of specialist palliative care, as well as possible barriers to accessing this care. We demonstrate that although palliative care involvement varies considerably worldwide, there is much opportunity for improvement. Further research is needed to determine new interventions and models of care that may improve access for patients with liver disease, including an expansion of providers comfortable with generalist palliative care.
Knowledge, Attitude and Practice of Brazilian Obstetricians Regarding Episiotomy
Authors: Cunha Carolina Maria Pires , Katz Leila , Lemos Andrea , Amorim Melania Maria 
Published: November 2019

AbstractObjective To determine the prevalence of episiotomy and the factors associated with the knowledge, attitude and practice (KAP) of Brazilian obstetricians in relation to this procedure.Methods A KAP survey was conducted with obstetricians working in Brazil. An electronic form containing structured questions previously evaluated using the Delphi method was created in Google Docs and sent by e-mail. A multivariate logistic regression was performed to determine the principal factors associated with adequate KAP. For each dependent variable (knowledge, attitude and practice) coded as adequate (1 = yes; 0 = no), a multiple logistic regression model was developed. Binary codes (1 = yes and 0 = no) were assigned to every independent or predictor variables. Prevalence ratios (PRs) and their respective 95% confidence intervals (95%CIs) were calculated as measures of relative risk, at a significance level of 5%.Results Out of the 13 thousand physicians contacted, 1,163 replied, and 50 respondents were excluded. The mean episiotomy rate reported was of 42%. Knowledge was determined as adequate in 44.5% of the cases, attitude, in 10.9%, and practice, in 26.8% of the cases.Conclusion Most respondents had inadequate knowledge, attitudes and practices regarding episiotomy. Although some factors such as age, teaching, working in the public sector and attending congresses improved knowledge, attitude and practice, we must recognize that episiotomy rates remain well above what would be considered ideal. Adequate knowledge is more prevalent than adequate attitude or practice, indicating that improving knowledge is crucial but insufficient to change the outlook of episiotomies in Brazil.
Protein-assisted RNA fragment docking (RnaX) for modeling RNA–protein interactions using ModelX
Authors: Delgado Blanco Javier , Radusky Leandro G. , Cianferoni Damiano , Serrano Luis 
Published: November 2019

Significance
Protein–RNA interactions, key in biological processes, remained refractory to prediction algorithms. Here we present a new extension of the ModelX tool suite designed for this purpose. RNA–protein complexes in the Protein Data Bank were decomposed into small peptide–oligonucleotide interacting fragment pairs and used as building blocks to assemble big scaffolds representing complex RNA–protein interactions. This method has already been successful for designing DNA–protein and protein–protein interfaces. Areas under the curve up to 0.86 were achieved on binding site prediction showing the accuracy and coverage of our approach over established and in-house benchmarking sets. Together with FoldX protein design tool suite we were able to engineer backbone- and side chain-compatible interfaces using naked protein structures as input.
Body map proto-organization in newborn macaques
Authors: Arcaro Michael J. , Schade Peter F. , Livingstone Margaret S. 
Published: November 2019

Significance
This study reports the discovery that large-scale topographic maps of the body exist throughout the entire primate somatosensory and motor systems at birth. Our results suggest that this proto-organization is established prenatally, even in areas that are crucial for coordinating and executing complex, ethologically relevant actions in adults. Given the behavioral immaturity of neonates, this suggests that large-scale body maps precede these action domains. Furthermore, our data can explain how these domains arise in stereotypical locations without the need for prespecification of function. This study demonstrates that topographic representations are a fundamental and pervasive principle of early development, providing the protoarchitecture of the entire brain on which experience-dependent specializations are elaborated postnatally.
Pulling-force generation by ensembles of polymerizing actin filaments
Authors: Motahari F , Carlsson A E 
Published: November 2019

Abstract
The process by which actin polymerization generates pulling forces in cellular processes such as endocytosis is less well understood than pushing-force generation. To clarify the basic mechanisms of pulling-force generation, we perform stochastic polymerization simulations for a square array of polymerizing semiflexible actin filaments, having different interactions with the membrane. The filaments near the array center have a strong attractive component. Filament bending and actin-network elasticity are treated explicitly. We find that the outer filaments push on the membrane and the inner filaments pull, with a net balance of forces. The total calculated pulling force is maximized when the central filaments have a very deep potential well, and the outer filaments have no well. The steady-state force is unaffected by the gel rigidity, but equilibration takes longer for softer gels. The force distributions are flat over the pulling and pushing regions. Actin polymerization is enhanced by softening the gel or reducing the filament binding to the membrane. Filament-membrane detachment can occur for softer gels, even if the total binding energy of the filaments to the membrane is 100

or more. It propagates via a stress-concentration mechanism similar to that of a brittle crack in a solid, and the breaking stress is determined by a criterion similar to that of the ‘Griffith’ theory of crack propagation.
Perspectives and problematic issues in the development of heat transfer enhancement methods at boiling and evaporation
Authors: Pavlenko A N 
Published: November 2019

Abstract
The paper presents an analysis of modern methods of heat transfer intensification and critical heat flux increase during boiling and evaporation using micro-nanostructuring of surface. Special attention is paid to the analysis of such promising methods of modifying heat-transfer surfaces as the application of combined microstructured surfaces/coatings by SLM/SLS (3-D printing), the organization of structures with contrast wettability on the micro-scale. The conclusions formulated on the basis of generalization of results of complex research on studying of heat transfer, transitional and crisis phenomena at boiling in the conditions of free convection, at evaporation and boiling in flowing down films and in thin horizontal layers of liquids at use of various types of microstructuring of heat- transfer surfaces are presented.
The effect of chemical interaction on the morphology of metal-carbon composites formed in a graphite arc
Authors: Smovzh D V 
Published: November 2019

Abstract
This work deals with the analysis of mechanism of nanostructured composite formation at joint electric-arc spraying of graphite electrodes with addition of various elements. It is shown that the morphology of nanoparticles, formed at condensation of carbon vapors with the additive elements that have similar pressures of saturated vapors, can vary significantly. This difference is explained by chemical interaction of an additive element with the carbon matrix.
Numerical study of the screw rotors for small scale hydropower
Authors: Platonov D V , Minakov A V , Dekterev D A , Dekterev A A , Dekterev Ar A , Lobasov A S 
Published: November 2019

Abstract
This paper reports on the investigation of screw rotors with different geometric parameters by numerical simulation. The study was performed for the free flow around a fully submerged system. The effect of the inner shaft diameter, the rotor screw pitch and running frequency on the energy characteristics, as well as the torque on a shaft and generated power are shown. Following up upon the conducted research of the screw rotor the geometric parameters and operating modes, which allow achieving maximum effectiveness at the same initial parameters, were determined.
CABARET scheme for modelling the stratification erosion in gas mixtures in hydrogen mitigation experiments for reactor safety
Authors: Yu Glotov V , Goloviznin V M , Kanaev A A , Kondakov V G , Kiselev A E 
Published: November 2019

Abstract
Experiments on atmosphere mixing and stratification in the large scale experimental facility (PANDA), where the initial helium stratification in a vessel is eroded by a vertical jet of steam, were simulated with the CABARET scheme. Good agreement between calculated and measured gas temperature and concentrations has been achieved by refining the mesh and adding the model of radiative heat transfer. The simulation results are presented and discussed.
Investigation of a viscous fluid drain under the pressure drop with simultaneous filling of a rectangular tank
Authors: Borzenko E I , Hegaj E I , Shrager G R 
Published: November 2019

Abstract
In this work the study of the hydrodynamic process, realized when a viscous fluid is drain from a triangular tank with simultaneous filling of a rectangular tank in a plane approximation, was carried out. The flow is described system of equations which is composed of Navier-Stokes equations and continuity equation in dimensionless variables. On the solid wall the no-slip conditions are specified. On free surfaces, the continuity conditions for normal and tangential stresses are satisfied. At the initial moment of time the fluid in drain tank is located. At the moment when the free surface reaches the level of the drain orifice, the drain tank is again considered to be filled of fluid. According to this a continuous drain process is carried out until the lower tank is completely filled without gas breakthrough from of the drain tank. The formulated problem is solved numerically using the PLIC VOF method. Parametric studies of this process were conducted. Different regimes of free surfaces formation for both the draining process and the filling process have been identified depending on the values of the determining parameters. The distribution of the kinematic characteristics of the flow is obtained.
Study of the heat transfer dynamics when a drop of liquid falls on a heated surface
Authors: Ponomarenko T G , Cheverda V V 
Published: November 2019

Abstract
The work is devoted to an experimental study of the heat transfer when a water drop falls on a heated horizontal surface, which is a thin constantan foil coated with a fluoropolymer film. Using infrared thermography data, the temperature distributions on the opposite side of the foil from the drop are obtained. The graphs of the temperature distribution along the line passing through the center of the foil with the drop is plotted. The data obtained will be used to calculate the heat flux density in the region of the dynamic contact line of the drop.
Investigating the effect of decompression rate on the synthesis of carbon dioxide gas hydrate by the method of explosive boiling of a liquefied hydrate gas
Authors: Meleshkin A V , Glezer V V , Bartashevich M V , Kozlov A N 
Published: November 2019

Abstract
The article is part of a comprehensive study of the method by synthesis of gas hydrate based on the explosive boiling of liquefied hydrate-forming gas in a volume of water during decompression. Carbon dioxide is used as hydrate-forming gas. This article explores the effect of decompression rates on the amount of gas transferred to a gas hydrate at an initial gas temperature of 2 ° C.
The influence of surface structuring on evaporation of sessile drops of water
Authors: Yu Borodulin V , Letushko V N , Nizovtsev M I , Sterlyagov A N 
Published: November 2019

Abstract
The paper presents the results of experimental studies of the evaporation of sessile water droplets on smooth and structured surfaces of Teflon fluoropolymer. Using high-speed microphotographs, data were obtained on the change in the contact angle and the diameter of the contact spot of water droplets during evaporation on smooth and structured surfaces. Using the method of infrared thermography, the dynamics of changes in the average temperature of water droplets during evaporation was investigated. The results show that the structure of the surface has a decisive influence on the change in the geometric parameters and temperature of the sessile water droplets.
Effect of rotation on impurity distribution in crystal growth by Bridgman method
Authors: Fedyushkin A I , Burago N G , Puntus A A 
Published: November 2019

Abstract
This work is devoted to the numerical (FE) study of the influence of crucible and submerged heater rotation on the distribution of doping gallium in germanium crystals grown by Bridgman method with submerged heater. The influence of crucible and submerged heater rotation on the impurity distribution in the melt and in the crystal for constant and oscillating rotation speeds is shown for the earth conditions and weightlessness conditions.
Influence of thermal treatment on the phase transitions of high-strength laser welding joints of aluminium-lithium alloys
Authors: Malikov A G , Orishich A M , Bulina N V 
Published: November 2019

Abstract
The paper presents the results of analysis of the laser welding and epy following thermal treatment influence on the phase transitions and strength characteristics of aluminiumlithium alloy of the system Al-Mg-Li. The influence of the welded joints after-treatment (quenching and artificial ageing) on the structural and phase composition has been studied for different modes. It is shown that the quenching procedure changes the microstructure of the basic alloy and welded joint, and the mechanical characteristics in the alloy and welded joint were successfully equalized, so the sample composition was maximally homogenized.
Theoretical investigation of thermodynamic properties of tetrabutylammonium bromide ionic clathrate hydrate
Authors: Subbotin O S , Gets K V , Bozhko Yu Yu , Belosludov V R , Zhdanov R K 
Published: November 2019

Abstract
In the framework of the lattice dynamics method, the densities of the phonon states of tetrabutylammonium bromide ionic clathrate hydrate have been found. The dynamic stability of the hydrate is shown for a number of temperatures. Using the developed statistical-thermodynamic theory, the free energy curves have been constructed for a wide range of temperatures at different unit cell volumes and, based on the calculated data, the lines of thermal expansion of the hydrate have been constructed.
Influence of radiative heat transfer on the sublimation of a single chromium (III) β-diketonate particle in the superheated mixture of vapor-inert gas
Authors: Lebeda K S , Makarov M S , Makarova S N 
Published: November 2019

Abstract
The paper presents the results of numerical simulation of nonstationary sublimation of spherical particles of Cr(acac)3, floating in the volume of a binary mixture (argonsuperheated vapor of precursor) in a reactor with hot walls. The influence of the vapor content, reactor wall temperature and radiative heat transfer on the kinetics of sublimation/desublimation are analyzed. The characteristic times of induction and total sublimation, as well as the intensity of mass entrainment from the surface of particles of different sizes are determined. The influence of radiation from the hot walls of the sublimator on these parameters is determined.
Experimental study of the dissociation of natural methane hydrate in the channel in the presence of air flow
Authors: Misyura S Y , Morozov V S 
Published: November 2019

Abstract
Experimental studies have been carried out on the combustion of natural gas hydrate at different rates of oxidant U (air) in the laminar flow regime and at a fixed channel height. It is established that the dissociation rate J is related to the velocity U in a non-linear manner. With an increase in rate from 0 to 0.6 m/s, the dissociation rate increases and reaches a maximum. With a further increase in rate, J decreases. The dissociation rate does not depend on the initial concentration of methane in the sample. Experimental dependences of the effect of U on the dissociation rate of a natural hydrate in a channel have been obtained for the first time. The conducted studies are important for further development of natural hydrate combustion technologies.
Numerical studies of the internal waves interaction with the Black Sea shelf topography at spring-summer stratification
Authors: Ya Shul’ga T , Svishcheva I A , Plastun T V 
Published: November 2019

AbstractThis work investigates the regional specifics of the appearance and propagation of internal waves at the shelf of the Black Sea. The parameters of horizontal inhomogeneity associated with changes in the bottom relief and density of seawater that lead to instability and destruction of internal waves are studied. The numerical experiments for the spring and summer seasons on transects normal to the coast are conducted using data of temperature and salinity from the Bank of oceanographic data of the Marine Hydrophysical Institute of RAS. The article touches upon the actual theme of adaptation of satellite images obtained from open sources when solving oceanographic problems. The result of the processing of remote sensing data was information about the speeds and wavelengths for the observed phenomena. These values are used to recover the depth of the seasonal pycnocline within a two-layer approximation of the vertical density structure. For different bottom slopes and seasonal profiles of the buoyancy frequency, sites are determined where the transition from supercritical to critical or subcritical conditions is possible in the region of the Crimean coast.
Implementation of the immersed boundary method for solving problems of fluid dynamics with moving bodies
Authors: Filimonov S A , Gavrilov A A , Dekterev A A 
Published: November 2019

Abstract
This paper presents the implementation of the immersed boundary method (IBM) for grids consisting of arbitrary cells. This approach allows to combine the IBM with the body-fitted method (BFM). The implementation is based on the combination of the “ghost-cell” method and penalization method. The paper presents the IBM to determine the basic design parameters and the results of the verification of the method for laminar and turbulent flow regimes for both Newtonian and viscoplastic fluids. In the last test, the method was used to simulate a flow in an annular channel with the orbital motion of the inner cylinder.
Numerical simulation of turbulent Rayleigh-Bénard mercury convection in a circular cylinder with introducing small deviations from the axisymmetric formulation
Authors: Smirnov S I , Abramov A G , Smirnov E M 
Published: November 2019

Abstract
Results of DNS are reported for turbulent Rayleigh-Bénard mercury convection (Pr = 0.025) in a cylindrical container with the aspect ratio of unity at the Rayleigh number of Ra = 106. The main goal of the study is to estimate the influence of small deviations from the axisymmetric formulation on the behavior of large-scale circulation (LSC) developing in the container. The deviations examined are a small tilt of the cylinder or prescribed sinusoidal disturbances of the bottom wall temperature. The effects of the computational grid structure in the central region of the flow are investigated as well. It has been shown that the azimuthal low-frequency reorientations of the LSC, which are typical for the axisymmetric problem setting, can be fully suppressed by imposing relatively small non-axisymmetric disturbances of various kinds. Time-averaged 3D velocity and temperature fields, as well as spatial non-uniformities of local heat transfer are analyzed for a “locked” LSC case.
Hydrodynamic analysis of a flow in a mixed core
Authors: Noskov A S , Falkov A A , Shipov D L , Lukyanov V E , Morozkin O N 
Published: November 2019

Abstract
This paper provides data on the performed analysis of hydrodynamics characteristics and calculation of crossflow distribution in a PWR mixed core. The analysis was realized using the subchannel thermal-hydraulic code VIPRE-01 and the CFD code STAR-CCM+. The paper sets out recommendations on choosing the computational model detailing and adjustment for the subchannel code. The analysis has shown that the mixed core model in VIPRE-01 takes into account the coolant flow redistribution correctly and provides the possibility of using this code for DNBR analysis in the mixed cores.