bluuebunny/crossref_metadata_2025_split huggingface dataset:
Study of Dosage-Dependent Effects of Cytostatic Drugs Using a Fibroblast Cell Culture of the Human Nasal Mucosa
Authors: Yartsev Vasily , Gabashvili Anna , Atkova Eugenia , Melnikov Pavel , Nesterova Tatiana 
Published: January 2020

Abstract
Introduction Knowing a concentration at which cytostatic drugs are toxic for the nasal fibroblasts will enable the use cytostatic drugs in the clinical practice to prevent excessive cicatrization.
Objective To determine the cytostatic concentrations of mitomycin С, doxorubicin, and 5-fluorouracil affecting nasal mucosa fibroblasts.
Methods We obtained material during an endonasal dacryocystorhinostomy with the patient's informed consent. The cells were cultivated. Second- to fourth-passage cells were used in the experiments. The cells were stained for vimentin and cluster of differentiation 90 (CD90). An MTS test 3 (3-(4,5-dimethylthiazole-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium); cell viability test was performed.
Results The cytostatic drugs have a toxic effect on cultivated fibroblasts of the nasal mucosa. This effect is dose-dependent. In terms of reducing the level of tissue fibrotisation in the nasal cavity, the most justified approach is to carry out an experimental study of the effect of mitomycin C, doxorubicin, and 5-fluorouracil at the concentrations of 0.25 mg/ml, 0.25 mg/ml, and 12.5 mg/ml respectively.
Conclusion The authors argue that it is inappropriate to use these cytostatic drugs to conduct studies with the goal of analyzing their antifibrotic effect on the nasal mucosa at concentrations that are either lower or higher than the aforementioned ones.
Well-Being of Caregivers of Patients with Laryngeal Cancer Treated by Radiotherapy
Authors: Karlsson Therese , Johansson Mia , Finizia Caterina 
Published: January 2020

Abstract
Introduction Laryngeal cancer is the second most common head and neck cancer, but no study to date reports exclusively on the well-being of the caregivers of patients with laryngeal cancer treated by radiotherapy.
Objective The present prospective pilot study aims to describe the impact of the work on the well-being of the caregivers of patients with laryngeal cancer.
Methods The caregivers of patients undergoing radiotherapy with curative intent for laryngeal cancer were included in the present study, and they were asked to fill out a specific questionnaire, while the patients filled out the Hospital Anxiety and Depression Scale (HADS) following diagnosis but prior to treatment.
Results A total of 50 caregivers were included, 20% of which were male, and 80%, female. In total, 62% (n = 31) of the caregivers were spouses, while the remaining were daughters/sons (n = 11; 22%), siblings (n = 6; 12%), or they were classified as “other” (n = 2; 4%). The female caregivers scored lower (worse) on the depression/worry domain, and this was statistically significant (p = 0.047); they also reported a statistically significant higher negative impact on employment (p = 0.011) compared with the male caregivers. In general, the caregivers of patients with late-stage tumors tended to report lower (worse) scores on all domains (except hospital contact) compared with the caregivers of patients with early-stage tumors. No other differences were observed regarding the patients' age, gender, tumor site or their HADS score.
Conclusion The diagnosis and treatment of laryngeal cancer impacts the caregiver's psychological well-being, particularly that of female caregivers. This should be taken into consideration when the patients begin the hospital treatment pathway. However, larger studies are needed to target resources more appropriately.
Improving the Speed of MRI with Artificial Intelligence
Authors: Johnson Patricia M. , Recht Michael P. , Knoll Florian 
Published: January 2020

AbstractMagnetic resonance imaging (MRI) is a leading image modality for the assessment of musculoskeletal (MSK) injuries and disorders. A significant drawback, however, is the lengthy data acquisition. This issue has motivated the development of methods to improve the speed of MRI. The field of artificial intelligence (AI) for accelerated MRI, although in its infancy, has seen tremendous progress over the past 3 years. Promising approaches include deep learning methods for reconstructing undersampled MRI data and generating high-resolution from low-resolution data. Preliminary studies show the promise of the variational network, a state-of-the-art technique, to generalize to many different anatomical regions and achieve comparable diagnostic accuracy as conventional methods. This article discusses the state-of-the-art methods, considerations for clinical applicability, followed by future perspectives for the field.
Observation of an apparent first-order glass transition in ultrafragile Pt–Cu–P bulk metallic glasses
Authors: Na Jong H. , Corona Sydney L. , Hoff Andrew , Johnson William L. 
Published: January 2020

Significance
The glass transition is ubiquitous among materials and is commonly characterized by the rapid kinetic arrest of atomic or molecular rearrangements in a liquid as temperature is lowered. The possible existence of an underlying thermodynamic phase transition has been a subject of continuing debate. Here, we present compelling evidence that the glass transition evolves into a first-order melting transition in the limit of very high-fragility metallic glass-forming liquids. These Pt-rich glasses melt in a discontinuous manner similar to melting of a crystal.
The Nernst effect in Corbino geometry
Authors: Kavokin A. V. , Altshuler B. L. , Sharapov S. G. , Grigoryev P. S. , Varlamov A. A. 
Published: January 2020

Significance
The Nernst effect consists in the induction of an electric current by a combined effect of the external magnetic field and the temperature gradient. We consider a Corbino disk geometry, where the temperature difference is applied between the outer and inner edges of the disk, while the magnetic field is perpendicular to the plane of the disk. We show that the circular diamagnetic currents flowing along the edges of the disk are the oscillatory functions of the filling factor of Landau levels of the electron gas in the disk. The Corbino geometry offers a unique opportunity for observation of the magnetization currents that have a purely thermodynamic nature, e.g., are independent of the conductivity of the sample.
Adaptation of gymnastics terms from English into Serbian
Authors: Milić Mira , Kardoš Aleksandra 
Published: January 2020

AbstractWithin the framework of an ever-increasing influx of English-based sports terms into Serbian, the paper will elucidate certain issues related to the actual and recommended adaptation of gymnastics terms in everyday use, as a contribution toA New English-Serbian Dictionary of Sports Terms. The analysis is based on a corpus of approximately 600 gymnastics terms in English and Serbian, compiled from official texts. The terms are critically examined from the perspective of adaptation of English units into the system of Serbian, at the level of content and form. Accordingly, the analysis will focus on the applied translation procedures and the method of transliteration. Given that the existing gymnastics terminology in Serbian includes numerous poly-lexical and poly-morphemic units, some of which do not comply with the linguistic standard of Serbian, the actual terms in use are also critically examined from the aspect of terminological standardization. This overview will thus be followed by a proposal for ways to standardize gymnastics terms in compliance with the model implemented in the existing English-Serbian dictionary of sports terms (Englesko-srpski rečnik sportskih termina) published in2006.
Evolution of cooperation with individual diversity on interdependent weighted networks
Authors: Liu Sicheng , Zhang Lin , Wang Baokui 
Published: January 2020

Abstract
The social networks as a complex set of networks fully reflect internal relations of individual interactions between them. Individual as an integral part of networks can show different functions under different levels. In the vast majority of current research realm of spatial evolutionary game, individuals who are often treated as identical peers interact with the local neighbours on a single, isolated same network, even the independent networks extended the content of spatial reciprocity. However, the individual diversity, including gender, wealth and social status and so on, usually is presented within the population. Individual heterogeneity impacts on the evolution of cooperation amongst selfish individuals. With this motivation, here we consider that two forms including Prisoner’s Dilemma (PD) and Snowdrift Game (SG) take place on interdependent weighted networks via the mixed-coupling in which individuals participate in different networks of interactions, cooperative behaviour can be maintained. Remarkably, the numerical analysis shows that, as the network interdependence considering individual diversity increases, cooperation thrives on one network joining in PD, the other engaging in SG may be plagued by defectors. Meanwhile, there exists an optimal region of mixed-coupling between networks to persist in cooperation of one network. Furthermore, individual diversity may be a link between non-trivial systems across the network connection, thus probing in how to schedule heterogeneous competitive tasks and services in complex manufacturing systems.
Predictions of

transitions *
Authors: Chen Yun-Hua 
Published: January 2020

Abstract
We study the contributions of intermediate bottomonium-like

states and the bottom meson loops in the heavy quark spin flip transitions

. Depending on the constructive or destructive interferences between the

-exchange and the bottom meson loops mechanisms, we predict two possible branching ratios for each process: BR

or

, and

or

. The contribution of the bottom meson loops is found to be considerably larger than that of the

-exchange in the

transitions, while its decay rates are not comparable to those of heavy quark spin conserved

processes. We also predict the contribution of the charm meson loops in the branch fractions of

.
Semileptonic decays

in the “PQCD+Lattice” approach *
Authors: Hu Xue-Qing , Jin Su-Ping , Xiao Zhen-Jun 
Published: January 2020

Abstract
We study the semileptonic decays

using the PQCD factorization approach with the newly defined distribution amplitudes of the

meson and a new kind of parametrization for extrapolating the form factors which takes into account the recent lattice QCD results. We find the following main results: (a) the PQCD predictions of the branching ratios of the

decays are smaller by about 5%-16% when the lattice results are taken into account in the extrapolation of the relevant form factors; (b) the PQCD predictions of the ratio

and of the longitudinal polarization

are

,

and

; and (c) after including the lattice results, the theoretical predictions slightly change:

,

,

and

. The theoretical predictions of

agree with the measurements within the errors. The other predictions could be tested by the LHCb experiment in the near future.
Production and constraints for a massive dark photon at electron-positron colliders *
Authors: Jiang Jun , Li Chun-Yuan , Li Shi-Yuan , Pathak Shankar Dayal , Si Zong-Guo , Yang Xing-Hua 
Published: January 2020

Abstract
Dark sector may couple to the Standard Model via one or more mediator particles. We discuss two types of mediators: the dark photon

and the dark scalar mediator

. The total cross-sections and various differential distributions of the processes

and

(

and b quarks) are discussed. We focus on the study of the invisible

due to the cleaner background at future

colliders. It is found that the kinematic distributions of the two-jet system could be used to identify (or exclude) the dark photon and the dark scalar mediator, as well as to distinguish between them. We further study the possibility of a search for dark photons at a future CEPC experiment with

GeV and 240 GeV. With CEPC running at

91.2 GeV, it would be possible to perform a decisive measurement of the dark photon (20 GeV

60 GeV) in less than one operating year. The lower limits of the integrated luminosity for the significance

2

, 3

and 5

are presented.
The

tetraquark states and the structure of X(2239) observed by the BESIII collaboration *
Authors: Lü Qi-Fang , Wang Kai-Lei , Dong Yu-Bing 
Published: January 2020

Abstract
We investigate the mass spectrum of the

tetraquark states in the relativized quark model. By solving the Schrödinger-like equation with the relativized potential, the masses of S- and P-wave

tetraquarks are obtained. The screening effects are also taken into account. It is found that the resonant structure

observed in the

process by the BESIII collaboration can be assigned as a P-wave

tetraquark state. Furthermore, the radiative transition and the strong decay behavior of this structure are also estimated, which can provide helpful information for future experimental searches.
quasibound state instead of ΛΛnn bound state *
Authors: Garcilazo H. , Valcarce A. , Vijande J. 
Published: January 2020

Abstract
The coupled

system was studied to investigate whether the inclusion of channel coupling is able to bind the

system. We use a separable potential three-body model of the coupled

system and a variational four-body calculation with realistic interactions. Our results exclude the possibility of a

bound state by a large margin. Instead, we found a

quasibound state above the

threshold.
Jet charge in high-energy nuclear collisions *
Authors: Chen Shi-Yong , Zhang Ben-Wei , Wang Enke 
Published: January 2020

Abstract
The averaged jet charge characterizes the electric charge of the initiating parton and provides a powerful tool to distinguish quark jets from gluon jets. We predict, for the first time, the medium modification of the averaged jet charge in the heavy-ion collisions at the LHC, where jet productions in p+p collisions are simulated by PYTHIA6, and the parton energy loss in QGP is calculated with two Monte Carlo models of jet quenching: PYQUEN and JEWEL. We found that the distribution of averaged jet charge is significantly suppressed by initial state isospin effects due to the participation of neutrons with zero electric charge during nuclear collisions. The considerable enhancement of the averaged jet charge in central Pb+Pb collisions is observed relative to peripheral collisions, since the jet quenching effect is more pronounced in central collisions. The distinct feature of the averaged jet charge between quark and gluon jets, along with the sensitivity of medium modifications on the jet charge to flavor dependence of the parton energy loss, could be very useful to discriminate the energy loss pattern between quark and gluon jets in heavy-ion collisions.
Synthesis of polyaniline by chemical oxidative polymerization and characteristic of conductivity and reflection for various strong acid dopants
Authors: Prasutiyo Y J , Manaf A , Hafizah M A E 
Published: January 2020

Abstract
Herein, polyaniline (PANI) is synthesized via chemical oxidative polymerization of aniline monomer with ammonium persulfate as initiator by maintaining the flow rate and stirring for 8 h at room temperature. Particle sizes up to 54.716 μm are obtained, with a viscosity reaching 1.87 mPa-s at 270 min. The highest temperature during polymerization was 32 °C at 210 min. Thus, the polymer molecules undergo propagating process to form polymer chains. Fourier transform infrared spectroscopy confirms the presence of the PANI molecule, which reveals a complete reaction when the double-bond peak at 3442 cm−1 disappears from the spectrum and new peaks appear corresponding to benzoic and quinoid molecules at 1300-1600 cm−1. This ensures that all aniline molecules are converted to PANI with no residual. We conclude that PANI is synthesized via oxidative polymerization. The electrical conductivity of PANI is driven by protonic acids. The conductivity increases upon adding protonic acids as a strong acid-doping agent. Thus, PANI-HClO4 exhibits best conductivity. The best material candidate for a microwave-absorbing material is thus PANI-EB because it has the highest reflection loss at -29.69 dB at 11.812 GHz, whereas PANI-HClO4 has only -2.74 dB reflection loss at 12.400 GHz.
Photocatalytic degradation of methylene blue (MB) by UV-light irradiation using SnO2/CeO2 modified nanographene platelets (NGP)
Authors: Paramarta V , Taufik A , Saleh R 
Published: January 2020

Abstract
The main task of this present work is to enhance the photocatalytic degradation of methylene blue (MB) under UV-light irradiation by using SnO2/CeO2 that combined with nanographene platelets (NGP) composite catalysts. A facile approach for the synthesis of SnO2/CeO2/NGp composites was demonstrated via co-precipitation method. The nanographene platelets (NGP) concentrations in composites were altered between 5–15 weight percent (wt.%). The structure and thermal stability obtained composites catalyst were thoroughly studied by various techniques including X-ray diffraction (XRD) and thermogravimetric analysis (TGA), respectively. XRD analysis reveals that the composites have the tetragonal structure of SnO2 nanoparticle, the cubic phase of CeO2 and the graphitic-like structure from NGP. TGA curves prove the presence of NGP materials in the composites by the decrement in mass at the temperature about 600°C. The synthesized SnO2/CeO2/NGP 10 wt.% composite exhibits higher photocatalytic activities than SnO2/CeO2 and pure SnO2 nanoparticles for the degradation of MB dye under UV light irradiation. The photocatalytic activities of the synthesized samples show an increasing degradation in the order of SnO2<SnO2/CeO2<SnO2/CeO2/NGP 5 wt.%< SnO2/CeO2/NGP 15 wt.% <SnO2/CeO2/NGP 10 wt.%. The enhanced photocatalytic performance could be ascribed to the high electron accepting nature of graphene and increase the number of active sites owing to high charge carrier mobility and high specific surface area of graphene material. The other parameter such as catalyst dosage, irradiation time and scavenger were also analyzed to find out the optimum degradation condition. The SnO2/CeO2/NGP 10 wt.% composite reach optimum photodegradation when irradiation time, catalyst dosage and scavenger are 120 min, 0.3 g/L, and hole, respectively. The tests for reusability tests have also been conducted to ensure the stability of the used catalysts.
Structural and optical study of Cu-doped TiO2 nanoparticles synthesized by co-precipitation method
Authors: Sokoidanto H , Taufik A , Saleh R 
Published: January 2020

Abstract
In this study, we synthesized Cu-doped TiO2 nanoparticles using a coprecipitation method, with chemical TiO2 as the base material and CuSO4.5H2O as a dopant precursor. To characterize their compositional, structural, optical, and paramagnetic properties, we employed energy dispersive X-ray spectroscopy, X-ray diffraction spectroscopy, Fourier transform infrared spectroscopy, diffuse reflectance UV-Visible spectroscopy, and electron spin resonance (ESR) spectroscopy. The outcome of the research study showed the samples to have a tetragonal anatase structure with grain sizes of 52-54 nm. The secondary CuO phase in the 6 at.% and 12 at.% samples showed a Cu solubility limit in their TiO2 lattice, which also influences the lattice parameters. We observed band-gap narrowing with an increasing concentration of the Cu dopant, as indicated by the redshift on the reflectance band edge. Substituting Ti with Cu atoms led to the detection of a paramagnetic species by ESR spectroscopy.
Comparison of Ag and Zr substitution on the structural and optical behaviour of ZnO nanoparticles
Authors: Djaja N F , Taufik A , Saleh R 
Published: January 2020

Abstract
Silver (Ag) and zirconium (Zr) doped ZnO (Ag-doped ZnO and Zr-doped ZnO) nanostructures were prepared utilizing the co-precipitation method, and the physical properties of all prepared samples were characterized utilizing X-ray diffractions, energy dispersive X-ray, and UV-Vis spectroscopy. Ag-doped ZnO and Zr-doped ZnO exhibit the hexagonal wurtzite structure, and the elemental analysis shows that the Ag and Zr concentrations on the samples were 3 atomic percent (at.%). The grain sizes of both samples were examined using Williamson-Hall plots with three different approaches using the uniform deformation model. The band gap energy of the prepared samples investigated using Kubelka-Munk analysis showed a red-shift to a lower energy compared to the band gap of ZnO nanoparticles, and the Zr-doped ZnO shows the lowest band gap energy. The red-shift of the band gap energy from Ag-doped ZnO and Zr-doped ZnO is probably due to the decreased grain size of both samples.
Annealing-temperature dependence of the electrical properties of Ba0.8Pb0.2TiO3 as a PTC material
Authors: Triyono D , Akbar A , Laysandra H 
Published: January 2020

Abstract
In this research, we investigate how the annealing temperature affects the electrical properties of Ba0.8Pb0.2TiO3 as a positive temperature coefficient material. The material was synthesized via solid-state sintering. The grain size was varied by varying the annealing temperature between 850 °C and 1000 °C for 4 h. Characterization via X-ray diffraction showed that a single-phase compound was formed exhibiting a tetragonal phase. The microstructure was observed using scanning electron microscopy. Average grain size was observed to be between 5 and 10μm. The electrical properties as characterized using impedance spectroscopy showed the presence of grain and grain-boundary contributions in the annealed samples. Dielectric constant and dielectric relaxation phenomenon as a function of annealing temperature have been studied.
Bio-nanocomposite of polyvinyl alcohol/Tapanuli organoclay-intercalated surfactant HDTMA-Br: synthesis, tensile and degradation tests
Authors: Aminuddin M , Krisnandi Y K , Juwono A L 
Published: January 2020

Abstract
Currently, the development of plastics that can be easily decomposed is attracting attention, especially for the conversion of polymer-based materials such as modified polyvinyl alcohol (PVA) into composites. Bio-nanocomposites were prepared using the solvent casting method of PVA and organoclay as the matrix and nanofiller, respectively. In this study, the characteristics and mechanical properties of the PVA/hexadecyltrimethylammonium bromide (C16)-intercalated organoclay nanocomposite were examined. This study was carried out in two stages, i.e., the interactions between organoclay and C16 and the synthesis and characterization of the PVA/organoclay-CI6 nanocomposites. Intercalation was verified from the shift of the X-ray Diffraction (XRD) peak from 2θ = 6° to 4.9° of bentonite and organoclay, with a shift in the basal spacing from 15.1 to 19.7 Å. The highest tensile strength of 58.02 MPa was observed for pristine PVA, and the lowest tensile strength of 41.33 MPa was observed for the PVA/organoclay–7% C16 nanocomposite. The highest water vapor transmission rate of 0.35 g/m2/h was observed for the PVA/organoclay–7% Cl6 nanocomposite, and the lowest value of 0.62 g/m2/h was observed for pure PVA. PVA/organoclay–3% C16 exhibited the optimum, as well as the least, decomposition properties, and PVA exhibited natural decomposition.