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Modeling net-charge fluctuations in heavy-ion collisions at the LHC

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Chinese Physics C 2025年第1期49卷 281-289页

作者： G.o.Ambaryan A.S.Chernyshov G.Kh.Eyyubova v.L.Korotkikh I.P.Lokhtin S.v.Petrushanko A.M.Snigirev E.E.Zabrodin Physics Department Lomonosov Moscow State UniversityRU-119991 MoscowRussia Skobeltsyn Institute of Nuclear Physics Lomonosov Moscow State UniversityRU-119991 MoscowRussia Bogoliubov Laboratory of Theoretical Physics Joint Institute for Nuclear ResearchRU-141980 DubnaRussia Department of Physics University of OsloN-0316 OsloNorway

Analysis of Pb+Pb data for net-charge fluctuations at LHC energies using the HYDJET++model is *** strongly intensive quantities D and Σ were used to remove the effects related to system volume *** employed two versions of HYDJET++for the *** first one is the standard or default version,whereas the second one is a modification that takes into account explicit event-by-event conservation of the electric net-charge of produced *** inclusion of the canonical net-charge conservation in the model allows for better description of the experimental data obtained by the ALICE and CMS Collaborations.A comparison with calculations from other models is also presented.

关键词： relativistic heavy-ion collisions net-charge fluctuations strongly intensive variables canonical charge conservation

A comprehensive investigation on nonlinear vibration and bending characteristics of bio-inspired helicoidal laminated composite structures

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Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 81-100页

作者： S.SAURABH R.KIRAN D.SINGH R.vAISH v.S.CHAUHAN School of Mechanical and Materials Engineering Indian Institute of Technology Mandi

Bio-inspired helicoidal composite laminates, inspired by the intricate helical structures found in nature, present a promising frontier for enhancing the mechanical properties of structural designs. Hence, this study provides a comprehensive investigation into the nonlinear free vibration and nonlinear bending behavior of bio-inspired composite plates. The inverse hyperbolic shear deformation theory(IHSDT) of plates is employed to characterize the displacement field, with the incorporation of Green-Lagrange nonlinearity. The problem is modeled using the C0finite element method(FEM), and an in-house code is developed in the MATLAB environment to solve it numerically. various helicoidal layup configurations including helicoidal recursive(HR), helicoidal exponential(HE), helicoidal semi-circular(HS), linear helicoidal(LH), and Fibonacci helicoidal(FH)with different layup sequences and quasi-isotropic configurations are studied. The model is validated, and parametric studies are conducted. These studies investigate the effects of layup configurations, side-to-thickness ratio, modulus ratios, boundary conditions, and loading conditions at different load amplitudes on the nonlinear vibration and nonlinear bending behaviors of bio-inspired composite plates. The results show that the laminate sequence exerts a substantial impact on both nonlinear natural frequencies and nonlinear bending behaviors. Moreover, this influence varies across different side-to-thickness ratios and boundary conditions of the bio-inspired composite plate.

关键词： bio-inspired composite plate finite element method (FEM) Green-Lagrange helicoidal inverse hyperbolic shear deformation theory (IHSDT) nonlinear o322

Prediabetes and atrial fibrillation risk stratification,phenotyping,and possible reversal to normoglycemia

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World Journal of Diabetes 2025年第1期16卷 7-11页

作者： Hyder o Mirghani Department of Internal Medicine University of TabukTabuk 51941TabukSaudi Arabia

Patients admitted with prediabetes and atrial fibrillation are at high risk for major adverse cardiac or cerebrovascular events independent of confounding *** shared pathophysiology between these three serious but common diseases and their association with atherosclerotic cardiovascular risk factors establish a vicious circle culminating in high *** of that,it is of paramount importance to perform risk stratification of patients with prediabetes to define phenotypes that benefit from various ***,stress hyperglycemia assessment of hospitalized patients and consensus on the definition of prediabetes is *** roles lifestyle and metformin play in prediabetes are well ***,the role of glucagon-like peptide agonists and metabolic surgery is less *** is considered an intermediate between normoglycemia and diabetes along the blood glucose *** billion people are expected to suffer from prediabetes by the year ***,realworld randomized controlled trials to assess major adverse cardiac or cerebrovascular event risk reduction and reversal/prevention of type 2 diabetes among patients are needed to determine the proper interventions.

关键词： Major adverse cardiac or cerebrovascular event Prediabetes Risk stratification Phenotype Stress hyperglycemia Reversal to normoglycemia

Creation of an oxygen-enriched environment during synthesis as an effective way to improve luminescent properties of Y_(2)o_(3):Eu^(3+)

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Journal of Rare Earths 2025年第1期43卷 21-29,I0001页

作者： Aleksandr A.Nashivochnikov Anton I.Kostyukov Mariana I.Rakhmanova Lidiya S.Kibis Svetlana v.Cherepanova Evgenii A.Suprun Novosibirsk State University Pirogova Str.2630090NovosibirskRussia Boreskov Institute of Catalysis SB RAS 5 Lavrentiev Ave630090NovosibirskRussia Nikolaev Institute of Inorganic Chemistry SB RAS 3 Lavrentiev Ave630090NovosibirskRussia

The growing demand for luminescent nanomaterials intended for various applications increases the necessity to develop and improve approaches to the creation of highly efficient nanosized *** current study,an approach to enhancing the efficiency of red luminescence of monoclinic Y_(2)o_(3):Eu^(3+)with the particle size of~20 nm by creating the oxygen-enriched environment during the gas-phase synthesis was *** investigate the effect of oxygen amount during the synthesis on characteristics of the phosphor,a series of nano structured Y_(2)o_(3):Eu^(3+)with the addition of 0-40 vol%o_(2) to the main buffer gas Ar was synthesized by laser *** is shown that the amount of added o_(2) exerts virtually no effect on the phase composition and particle size,but significantly improves the luminescent characteristics of Y_(2)o_(3):Eu^(3+).Thus,the addition of 30 vol%o_(2) leads to virtually a 20-fold growth in the photoluminescence(PL)intensity caused by ^(5)D_(0)→^(7)F_(0-4) transitions in Eu^(3+)and an increase in the absolute PL quantum yield from 3%to 53%(λex=395 nm)compared to the sample synthesized without o_(2).The addition of oxygen also improves the emission color coordinates from(0.571,0.320)to(0.630,0.322)due to the removal of a considerable fraction of oxygen *** synthesized nanopowders are shown to be highly stable:upon storage under ambient conditions for two *** yield(QY)of the samples decreases by less than 2%.It is expected that the key features underlying the proposed approach will be useful for various methods used to synthesize oxide nanophosphors.

关键词： Photoluminescence Quantum yield Laservaporization Y_(2)0_(3):Eu^(3+) Monoclinic Y_(2)0_(3) Rareearths

Gravitational form factors and nucleon spin structure

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Frontiers of physics 2016年第5期11卷 1-8页

作者： o.v. Teryaev Bogoliubov Laboratory of Theoretical Physics JINR 141980 Dubna Moscow Region Russia

Nucleon scattering by the classical gravitational field is described by the gravitational （energy- momentum tensor） form factors （GFFs）, which also control the partition of nucleon spin between the total angular momenta of quarks and gluons. The equivalence principle （EP） for spin dynamics results in the identically zero anomalous gravitomagnetic moment, which is the straightforward analog of its electromagnetic counterpart. The extended EP （ExEP） describes its （approximate） validity separately for quarks and gluons and, in turn, results in equal partition of the momentum and total angular momentum. It is violated in quantum electrodynamics and perturbative quantum chromodynamics （QCD）, but may be restored in nonperturbative QCD because of confinement and spontaneous chiral symmetry breaking, which is supported by models and lattice QCD calculations. It may, in principle, be checked by extracting the generalized parton distributions from hard exclu- sive processes. The EP for spin-1 hadrons is also manifested in inclusive processes （deep inelastic scattering and the Drell-Yan process） in sum rules for tensor structure functions and parton distributions. The ExEP may originate in either gravity-proof confinement or in the closeness of the GFF to its asymptotic values in relation to the mediocrity principle. The GFFs in time-like regions reveal some similarity between inflation and annihilation.

关键词： gravity form factors equivalence principle

Creeping fat and gut microbiota in Crohn’s disease

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World Journal of Gastroenterology 2025年第1期31卷 16-23页

作者： Ana Ev Quaglio Daniéla o Magro Marcello Imbrizi Ellen CS De oliveira Luiz C Di Stasi Ligia Y Sassaki verum Ingredients Botucatu Technology ParkBotucatu 18605-525São PauloBrazil Department of Surgery Faculty of Medical SciencesState University of CampinasCampinas 13083-970São PauloBrazil Department of Gastroenterology Faculty of Medical SciencesUniversity of CampinasCampinas 13083-970São PauloBrazil Department of Internal Medicine Medical SchoolSão Paulo State UniversityBotucatu 18618-686São PauloBrazil Department of Biophysics and Pharmacology Institute of BiosciencesSão Paulo State UniversityBotucatu 18618-689São PauloBrazil

In this article,we explored the role of adipose tissue,especially mesenteric adipose tissue and creeping fat,and its association with the gut microbiota in the pathophysiology and progression of Crohn’s disease(CD).CD is a form of inflammatory bowel disease characterized by chronic inflammation of the gastrointestinal tract,influenced by genetic predisposition,gut microbiota dysbiosis,and environmental *** microbiota plays a crucial role in modulating immune response and intestinal inflammation and is associated with the onset and progression of ***,visceral adipose tissue,particularly creeping fat,a mesenteric adipose tissue characterized by hypertrophy and fibrosis,has been implicated in CD pathogenesis,inflammation,and *** bacteria from the gut microbiota may translocate into mesenteric adipose tissue,contributing to the formation of creeping fat and influencing CD *** creeping fat may be a protective barrier against bacterial invasion,its expansion can damage adjacent tissues,leading to *** gut microbiota through interventions such as fecal microbiota transplantation,probiotics,and prebiotics has shown potential in managing ***,more research is needed to clarify the mechanisms linking gut dysbiosis,creeping fat,and CD progression and develop targeted therapies for microbiota modulation and fat-related complications in patients with CD.

关键词： Creeping fat Mesenteric adipose tissue Gut microbiota Crohn’s disease Inflammatory bowel disease

Dynamics of a fluid-filled curvilinear pipeline

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Applied Mathematics and Mechanics(English Edition) 2018年第6期39卷 905-922页

作者： v.A.RUKAvISHNIKov o.P.TKACHENKo Computing Center of Far-Eastern Branch Russian Academy of Sciences

A mathematical model is presented, and numerical experiments are performed to describe the mechanics of the slow movement of a pipeline. The problem reduction algorithm to one-dimensional formulation is offered. Results of numerical experiment for the model problem are adduced. The proposed mathematical model is found to adequately describe the dynamics of known phenomena of pipes. The cross-sections of the extended curvilinear thin-walled pipeline are numerically demonstrated to experience warping, which has experimental confirmation in the literature.

关键词： bent pipeline numerical experiment hydroelasticity shell theory

Thermodynamic Assessment of the Zro_2-Ceo_2 and Zro_2-Ceo_(1.5) Binary System

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Journal of Materials Science & Technology 2002年第4期18卷 325-327页

作者： ShuigenHUANG o.v.D.Biest 等 Dpet.ofMaterialsScienceandEngineering ShanghaiUniversityShanghai200072China Dept.ofMaterialsandMetallurgy KatholiekeUniversiteitLeuvenB-3001HeverleeBelgium

An optimal set of thermodynamic parameters of the Zro2-Ceo1.5 system has been obtained using phase diagram data by modern CALPHAD (CALculation of PHAse Diagrams) technique. The liquid and other solid solution phases were regarded as substitutional solution. The ordered Zr2Ce2o7 phase was treated as a stoichiometric compound. The Zro2-Ceo2 system has been re-optimized with new reference state. A comparison between the Zro2-Ceo2 system and Zro2-Ceo1.5 system has been made through calculation. With the calculation, the experimental information is well reproduced and a good agreement is obtained.

关键词： Zro2-Ceo1.5 thermodynamic Phase diagram

Laser interaction with undercritical foams of different spatial structures

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Matter and Radiation at Extremes 2025年第1期10卷 39-47页

作者： J.Limpouch v.Tikhonchuk o.Renner Sh.Agarwal T.Burian J.Cervenka J.Dostál R.Dudzák D.Ettel A.Gintrand L.Hudec L.Juha o.Klimo M.Krupka M.Krus T.Lastovicka R.Liska W.Nazarov S.K.Singh M.Šilhavík S.Weber Faculty of Nuclear Science and Physical Engineering Czech Technical University in Prague11519 PragueCzech Republic The Extreme Light Infrastructure ERIC ELI-Beamlines FacilityZa Radnicí83525241 DolníBrezanyCzech Republic Centre Lasers Intenses et Applications University of Bordeaux-CNRS-CEA351 Cours de la Liberation33405 TalenceFrance Institute of Physics Czech Academy of SciencesNa Slovance 1999/218200 PragueCzech Republic Institute of Plasma Physics Czech Academy of Sciences18200 PragueCzech Republic Faculty of Mathematics and Physics Charles University12116 PragueCzech Republic Faculty of Mechatronics Informatics and Interdisciplinary StudiesTechnical University of Liberec46117 LiberecCzech Republic Independent Foam Target Supplier St.AndrewsFifeScotland

The interaction of high-power laser pulses with undercritical foams produced by different techniques but with the same average density is studied at the PALS laser *** spatial-temporal evolution of X-ray emission is observed using an X-ray streak camera,electron and ion temperatures are measured by X-ray spectroscopy,and hot-electron production is characterized by monochromatic X-ray *** of a femtosecond laser probe pulse through foams is observed in the near and far *** spite of large differences in pore size and foam structure,the velocity of ionization front propagation is quite similar for all the foams studied and is slower than that in a homogeneous material of the same average *** ion temperature in the plasma behind the ionization front is a few times higher than the electron ***-electron production in plastic foams with small pores is strongly suppressed compared with that in solid targets,whereas in foams produced by additive manufacturing,it is significantly increased to the level observed in bare copper foil targets.

关键词： temperature. interaction critical