bluuebunny/crossref_metadata_2025_split huggingface dataset:
Steady-states of relativistic Pierce diode in a regime with electron reflection from a potential barrier
Authors: Gerasimenko A B , Kuznetsov V I 
Published: December 2020

Abstract
In this work we present the study of steady states of a relativistic Pierce diode. We take into account electron scattering by heavy background ions as well as electron reflection from a potential barrier. Using Lagrangian variables we solve the problem numerically. Steady-state solutions are visualized through the ‘Bursian’ and ‘Non-Bursian’ branches in a parametric plane. Features of these branches with varying in mean collision frequency are analysed.
Studies of terahertz discharge in noble gases using a Michelson interferometer
Authors: Barmashova T , Luchinin A , Murzanev A , Sidorov A , Stepanov A , Veselov A , Vodopyanov A 
Published: December 2020

Abstract
The measurements of the spatial-time evolution of the discharge in argon and krypton at a wide range of pressures were performed. The gyrotron was used for plasma ignition. The radiation was 40 kW with frequency 0.67 THz. The pulse duration was 20 μs. A Michelson interferometer has been exploited for investigation of the discharge in the noble gases in a focused beam of terahertz waves. The diameter of the laser beam near the plasma cloud was 25 mm at 1/e
2 level, λ = 532 nm. The rectangle area (about 20 × 15 mm) near the focus of THz beam was examined synchronously by the interferometer and a CCD camera. The spatial-time evolution of laser beam phase-shift of THz discharge in Kr and Ar from atmospheric pressure down to a few torrs was obtained. The intensity of the discharge glow in optical range correlates with the phase shift map. Previous measurements of plasma density made in Ar under a background gas pressure at a level of a few torrs, based on the Stark effect, are in good agreement with the gained results.
Simulation of aeroacoustics of low Mach number flow with the use of wave equation model
Authors: Guseva E K , Egorov Y 
Published: December 2020

Abstract
Results of simulations of the noise generated by a turbulent flow around a simplified rain gutter of a car windshield are presented. The hybrid approach of ANSYS FLUENT used the scale-resolving SBES model for calculating a turbulent flow under an incompressible flow assumption, and the wave equation model for the propagation of acoustic perturbations. The mean static pressure and the sound intensity obtained in the simulations were compared with experimental data and were found to be well predicted.
Optical properties of alkali halide crystals
Authors: Kaplunov I , Kropotov G , Rogalin V , Shahmin A 
Published: December 2020

Abstract
The results of measuring the transparency bands in a wide wavelength range - from UV to 3000 μm for crystals of sodium chloride (NaCl), potassium chloride (KCl), iodine bromide (KBr) and rubidium iodide (RbI) are presented. It was shown that, along with well-known data on the transparency of these crystals in the UV and IR ranges, they have a transmission zone in the THz range in the region of 1000 μm.
Fragmentation and ablation of the planetesimals in the protoplanetary disks of Jupiter and Saturn
Authors: Kronrod V.A. , Makalkin A.B. , Kronrod E.V. 
Published: December 2020

Abstract
In this study we discuss the capture of bodies into the gaseous disks around young Jupiter and Saturn due to gas drag in the disks. We suppose that solution of the problem will allow estimation of the masses and composition of bodies that fell on the growing icy moons. This would provide explanation of the differences in the mean density and internal structure of giant icy moons of Jupiter and Saturn. The multiparameter problem of braking, fragmentation and ablation of planetesimals (a comet substance) in the gas medium of the circumplanetary disk is solved by a modified approach of the meteor physics. Our research shows that a significant masses of protosatellite material falling on the circumplanetary disks of Jupiter and Saturn are captured in the disks. At the same time the masses captured in the formation region of different moons are very different. The braking and fragmentation of planetesimals can be the main parameter in the mechanism of capture mass of planetesimals by the accretion disks of giant planets. There is a significant difference in the mass of material captured by the aerodynamic braking and ablation in the formation regions of Ganymede, Callisto, and Titan (up to 30-40%). For a material strength of 2* 104 Pa <σ* <2*105 Pa, a significant difference in the amount of matter captured by the disk in the feeding region of the regular ice satellites of Ganymede, Callisto and Titan is possible. The presence of fragmentation is perhaps one of the reasons for the difference in the internal structure of Ganymede, Callisto and Titan.
Development of databases of intelligent expert systems for automatic control of product quality indicators
Authors: Blagoveshchenskiy I G , Blagoveshchenskiy V G , Besfamilnaya E M , Sumerin V A 
Published: December 2020

Abstract
Currently existing methods of product quality assessment are far from perfect, since this assessment is carried out in the laboratories of enterprises. Successful solution of this problem is possible when implementing intelligent expert systems for monitoring and forecasting in the flow of product quality indicators using intelligent technologies in the production process. One of the most important components of the expert system is the database. The article deals with the methodological basis for creating databases for building an intelligent expert system for monitoring and forecasting product quality indicators in the production process. Distinctive features of databases are highlighted. The method of database development is investigated and proposed. The main stages of database development are investigated and analyzed. An integrated conceptual model of the domain database of the integrated expert system has been developed. Developed: a tree of database goals, the composition of the main elements of the database system of the intellectual expert system of product quality control. The main phases and stages of designing the database and expert system have been worked out. VAD data flow diagrams are presented. The description of the domain semantics is developed in the form of a system of functional and multi-valued dependencies between attributes of the conceptual model of the domain database. The database architecture has been developed. The developed specialized database of the integrated expert system for monitoring food quality indicators is a single information environment that provides information for automatic control of product quality indicators.
Mechanics of alpine skiing: carve turn with angulation
Authors: Legotin S D , Obnosov K B , Rivlin A A 
Published: December 2020

Abstract
The article deals with the problem of modeling the movement of an athlete-skier when performing a cut ski turn with angulation. A system of integral equations for dimensionless motion parameters is formulated. its numerical solution, taking into account individual styles of angulation control, allows us to construct the trajectory of the center of mass of the system, estimate its speed, angles that characterize the position of the skier’s body and its skis relative to the slope, and the time of its movement. Examples of calculating the parameters of a carve turn with different style angulations are considered.
Tunneling FET Calibration Issues: Sentaurus vs. Silvaco TCAD
Authors: Nabil Amira , Shaker Ahmed , Abouelatta Mohamed , Ragai Hani , Gontrand Christian 
Published: December 2020

Abstract
In this paper, a comprehensive comparison of TFET simulations using two TCAD simulators, Sentaurus and Silvaco TCAD, is presented. The comparison is fully cover various types of TFETs, either from the structure geometry or the materials point of view, which proved a framework for TFET designs and simulations. For Sentaurus TCAD, a dynamic nonlocal BTBT model is used for all simulations as it is proved a good calibration for experimental data or full quantum data taken from the literature. The BTBT model’s parameters are determined for different material and hetero-junctions structures where they can be used directly for any design or structure calibration. For the Silvaco simulator, a nonlocal BTBT model is utilized for calibration and its parameters are also provided. The study offers quick parameters data to be used directly, utilizing various materials without being involved in calibration difficulties.
Design of a Planar Inverted F-Antenna for Medical Implant Communications Services Band
Authors: Salama Sanaa , Zyoud Duaa , Daghlas Razan , Abuelhaija Ashraf 
Published: December 2020

Abstract
A planar inverted F-implantable antenna is designed using the medical implant communications service (MICS) band (402–405MHz).The proposed antenna is designed using microstrip lines and short-circuited pin connecting between the ground plane and the patch. The total size of the proposed antenna is (24×32×2 mm3). The patch dimensions are (16×24 mm2). The calculated bandwidth at a return loss of -10 dB is 1MHz. The S-parameters, the near and far-fields, and the specific absorption rate (SAR) of the antenna is simulated and characterized. The design is carried out using CST Studio.
Removal of Rhodamine B dye from aqueous solution by heterogeneous UV-Fenton catalytic process
Authors: Lam Hoa-Hung , Tran-Thuy Tuyet-Mai , Dang-Bao Trung 
Published: December 2020

Abstract
In this study, the removal of Rhodamine B at high concentrations (25–100 ppm) from aqueous solution was carried out via the heterogeneous UV-Fenton catalytic process based on Fe3O4 nanoparticles. The removal efficiency of Rhodamine B (C0 = 50 ppm) reached 100% after 4 hours treatment, corresponding to the mineralization efficiency of 70%. In comparison with the conventional Fenton processes, the assistance of UV irradiation boosted the OH• radical generation and prevented the formation of ionic complexes between Fe3+ and Rhodamine B, permitting the catalyst activity improvement. In addition, Fe3O4 nanoparticles could be easily separated by an external magnet and then re-cycled several times with minimal loss of catalyst activity.
Overview of the 17th International Scientific and Technical Conference Rapid Solidification Materials and Coatings
Authors: Lozovan A A , Kostrin D K 
Published: December 2020

Abstract
This overview presents the key features and main goals of the 17th International Scientific and Technical Conference Rapid Solidification Materials and Coatings, which took place on October 20-21, 2020 in Moscow.
List of Organizing Committee, Program Committee, are available in the pdf.
Study into initial stages of plasma electrolytic oxidation of magnesium alloy
Authors: Mukaeva V R , Melnichuk O V , Vasilev R A , Lutfrakhmanov I M , Parfenov E V 
Published: December 2020

Abstract
In the present work, a coating growth during plasma electrolytic oxidation on magnesium alloy was investigated. We observed the initial stages: electrochemical anodizing accompanied by anodic dissolution; oxidation with low power spark discharges; oxidation with microarc discharges. The study discusses the evolution of morphology, porosity, elemental composition in comparison with the PEO electrical characteristics and optical emission of microdischarges. The kinetic model, which is consistent with the observed mechanism of coating growth, is constructed.
Labour Share and Productivity Dynamics
Authors: Choi Sekyu , Ríos-Rull José-Víctor 
Published: December 2020

Abstract
We pose technology shocks where the innovation is biased towards more recently installed plants. On one extreme, the shock is like a neutral technological shock, while on the other end it resembles investment-specific technological shocks. We embed these shocks in a model with putty–clay technology and estimate it requiring that the model replicates the volatility properties of the Solow residual and the overshooting property of the labour share of output. Our estimates show that putty–clay nature of technology, a time bias towards new plants and competitive wage setting replicate well the overshooting property.
The reporting quality of split-mouth trials in orthodontics according to CONSORT guidelines: 2015–19
Authors: Qin Danchen , Hua Fang , Liang Shengjie , Worthington Helen , He Hong 
Published: December 2020

Summary

Objectives
To assess the reporting quality of split-mouth trials (SMTs) in orthodontic journals, and to identify factors associated with better reporting.

Materials and methods
Seven leading orthodontic journals were hand searched for SMTs published during 2015–19. The CONSORT 2010 guideline and CONSORT for within-person trial (WPT) extension were used to assess the trial reporting quality (TRQ) and WPT-specific reporting quality (WRQ) of included SMTs, respectively. A binary score (0 or 1) was given to each item of the guidelines, and total scores were calculated for TRQ (score range, 0–32) and WRQ (score range, 0–15). Univariable and multivariable linear regression analyses were performed to identify factors associated with TRQ and WRQ.

Results
A total of 42 SMTs were included. The mean overall scores for TRQ and WRQ were 16.8 [standard deviation (SD) 7.1] and 5.6 (SD 2.3), respectively. Only 11 SMTs (26.2%) presented the rationale for using a split-mouth design. Key methodological items including random sequence generation (22/42, 52.4%), allocation concealment (9/42, 21.4%), and blinding (20/42, 47.6%) were poorly reported. Only six SMTs (14.3%) used a paired method for sample size calculation, and half (21/42, 50.0%) considered the dependent nature of data in statistical analysis. In multivariable analyses, higher TRQ and WRQ were both significantly associated with journal, reported use of CONSORT and funding status.

Conclusions
The reporting quality of SMTs in orthodontics has much room for improvement. Joint efforts from relevant stakeholders are needed to improve the reporting quality of SMTs and reduce relevant avoidable research waste.
Physical, genetic and functional interactions between the eisosome protein Pil1 and the MBOAT O-acyltransferase Gup1
Authors: Tulha Joana , Amorim-Rodrigues Mariana , Esquembre Lidia Alejo , Rauch Sebastien , Tamás Markus J , Lucas Cândida 
Published: December 2020

ABSTRACT
The Saccharomyces cerevisiae MBOAT O-acyltransferase Gup1 is involved in many processes, including cell wall and membrane composition and integrity, and acetic acid-induced cell death. Gup1 was previously shown to interact physically with the mitochondrial membrane VDAC (Voltage-Dependent Anion Channel) protein Por1 and the ammonium transceptor Mep2. By co-immunoprecipitation, the eisosome core component Pil1 was identified as a novel physical interaction partner of Gup1. The expression of PIL1 and Pil1 protein levels were found to be unaffected by GUP1 deletion. In ∆gup1 cells, Pil1 was distributed in dots (likely representing eisosomes) in the membrane, identically to wt cells. However, ∆gup1 cells presented 50% less Pil1-GFP dots/eisosomes, suggesting that Gup1 is important for eisosome formation. The two proteins also interact genetically in the maintenance of cell wall integrity, and during arsenite and acetic acid exposure. We show that Δgup1 Δpil1 cells take up more arsenite than wt and are extremely sensitive to arsenite and to acetic acid treatments. The latter causes a severe apoptotic wt-like cell death phenotype, epistatically reverting the ∆gup1 necrotic type of death. Gup1 and Pil1 are thus physically, genetically and functionally connected.
Prevalence of Child Marriage Among Yemeni and Somali Refugee and Host Communities in Djibouti, 2019
Authors: Ben Hamida Amen , Hunersen Kara , Houssein Barkat Hemeda , Doualeh Aden Yacin , Hersi Doualeh Robleh , Elmi Nika , Metzler Janna , Robinson W Courtland 
Published: December 2020

Abstract
Despite increased vulnerability of displaced communities, the evidence of child marriage in humanitarian setting remains scarce. We conducted this study to estimate the prevalence of child marriage among Somali and Yemeni refugees and their host communities in Djibouti; and assess its independent associations with different exposure variables. Using a stratified random sampling design, we recruited eligible refugee and hosts-near-refugee households within four cites in Djibouti during February–March 2019. We assessed the prevalence of females aged 20–24 married &lt;15 and &lt;18, the prevalence of marriage within females aged 10–19 and 15–19, and multivariate associations between exposure variables and child marriage. Overall, 1,276 households and 6,784 household members were recruited. Among female refugees aged 20–24 (N=107), the prevalence of first married &lt;18 was 10.5 percent and 4 percent for Yemeni and Somali refugees; and among female refugees aged 10–19 (N=1,239), the prevalence of marriage was 7.8 percent and 6.6 percent for Yemeni and Somali refugees, respectively. Child marriage was independently associated with age of the girl (AOR=1.60, 95% CI=1.38–1.85); education level of the head-of-household (AOR=2.65, 95% CI=1.45–4.84); and education of the girl (AOR=0.56, 95% CI =0.30–1.05). This study provides the estimates of child marriage prevalence within Somali and Yemeni refugee communities in Djibouti, adds to the evidence on the protective role of girls education against child marriage, and informs child health, education, and protection programmes targeting these communities in the future.
Sustainability in Refugee Camps: A Comparison of the Two Largest Refugee Camps in the World
Authors: Wardeh Mai , Marques Rui Cunha 
Published: December 2020

AbstractAlthough the refugee phenomenon is not new and refugee camps are rarely temporary, in most cases, the procedures implemented within refugee camps have failed to apply principles of sustainability to ensure refugees’ dignity and improve their quality of life, thereby helping them become independent and self-reliant. This improvement, in turn, may help them return to their homes in the future or may, at least, reduce the high cost and negative coping strategies associated with refugee camps and instead increase refugees’ social integration within the host community. This paper discusses the procedures applied in both the Zaatari refugee camp in Jordan and the Dadaab Refugee Complex in Kenya and provides evidence regarding the extent to which they meet the United Nations 2030 Agenda for Sustainable Development without leaving refugees behind. Furthermore, this paper shows how sustainable development goals (SDGs) are interconnected in a refugee camp setting. This study concludes that refugee camps not only failed to align with 2030 agenda but failed to ensure refugees’ basic rights where a more inclusive and sustainable approach is required to improve the refugees’ quality of life and to help them live in dignity and reach self-reliance that can benefit both refugees and their host communities.
Chromatin structure restricts origin utilization when quiescent cells re-enter the cell cycle
Authors: Lee Po-Hsuen , Osley Mary Ann 
Published: December 2020

Abstract
Quiescent cells reside in G0 phase, which is characterized by the absence of cell growth and proliferation. These cells remain viable and re-enter the cell cycle when prompted by appropriate signals. Using a budding yeast model of cellular quiescence, we investigated the program that initiated DNA replication when these G0 cells resumed growth. Quiescent cells contained very low levels of replication initiation factors, and their entry into S phase was delayed until these factors were re-synthesized. A longer S phase in these cells correlated with the activation of fewer origins of replication compared to G1 cells. The chromatin structure around inactive origins in G0 cells showed increased H3 occupancy and decreased nucleosome positioning compared to the same origins in G1 cells, inhibiting the origin binding of the Mcm4 subunit of the MCM licensing factor. Thus, quiescent yeast cells are under-licensed during their re-entry into S phase.
Bicameral Lawmaking: Analysing the Choices of Revising Chambers
Authors: Alemán Eduardo , Mimica Nicolás , Navia Patricio 
Published: December 2020

Abstract
This article examines the choices made by revising chambers in bicameral congresses. It analyses how bill characteristics, chamber congruence, impatience and institutional context influence the decisions made by revising chambers regarding executive bills sent by the chamber of origin. The analysis focuses on the case of Chile, a presidential country in which the executive has substantial proposal power. The findings show that the probability of a bill passing with amendments is higher when it receives a presidential urgency and when the revising chamber is the Senate. Executive bills coming out of the Finance Committee are more likely than others to pass unamended. However, those bills are more likely to die in committee when the revising chamber is the Senate (i.e. the chamber whose membership has a longer time horizon).
Classification of Psychoses Based on Immunological Features: A Machine Learning Study in a Large Cohort of First-Episode and Chronic Patients
Authors: Enrico Paolo , Delvecchio Giuseppe , Turtulici Nunzio , Pigoni Alessandro , Villa Filippo Maria , Perlini Cinzia , Rossetti Maria Gloria , Bellani Marcella , Lasalvia Antonio , Bonetto Chiara , Scocco Paolo , D’Agostino Armando , Torresani Stefano , Imbesi Massimiliano , Bellini Francesca , Veronese Angela , Bocchio-Chiavetto Luisella , Gennarelli Massimo , Balestrieri Matteo , Colombo Gualtiero I , Finardi Annamaria , Ruggeri Mirella , Furlan Roberto , Brambilla Paolo 
Published: December 2020

Abstract
For several years, the role of immune system in the pathophysiology of psychosis has been well-recognized, showing differences from the onset to chronic phases. Our study aims to implement a biomarker-based classification model suitable for the clinical management of psychotic patients. A machine learning algorithm was used to classify a cohort of 362 subjects, including 160 first-episode psychosis patients (FEP), 70 patients affected by chronic psychiatric disorders (schizophrenia, bipolar disorder, and major depressive disorder) with psychosis (CRO) and 132 health controls (HC), based on mRNA transcript levels of 56 immune genes. Models distinguished between FEP, CRO, and HC and between the subgroup of drug-free FEP and HC with a mean accuracy of 80.8% and 90.4%, respectively. Interestingly, by using the feature importance method, we identified some immune gene transcripts that contribute most to the classification accuracy, possibly giving new insights on the immunopathogenesis of psychosis. Therefore, our results suggest that our classification model has a high translational potential, which may pave the way for a personalized management of psychosis.