bluuebunny/crossref_metadata_2025 huggingface dataset:
Review on smart technologies for coal dust control in the cities with coal seaports
Authors: Kuznetsova Elena
Published: November 2024

As one of the most important energy resources in the world, coal contributes a great deal to the global economy. Therefore, despite the diversification of energy resources and transition to green energy, there are still a lot of seaports with coal terminals all over the world. Most of these ports are located within the city boundaries quite close to residential areas, and it’s difficult to underestimate their negative impact on the city’s ecology. Coal dust pollution is the main problem for the cities with coal seaports as coal terminals by their nature are active sources of fugitive dust. Coal is typically stored in large piles at port terminals, and these piles often generate significant quantities of coal dust when it’s windy or when the coal is disturbed or moved during the loading and unloading process. Coal dust is not just an aesthetic problem for the cities, it’s a threat to water quality and a possible danger to citizen’s health. The exposure of coal dust can be prevented using administrative and engineering control methods. Nowadays cities are becoming smarter by using innovative technologies to improve the quality of their citizen’s life. At the same time, ports are also becoming smarter and seeking strategies to innovate. The aim of this article is to review the most known smart technologies for coal dust control in the port cities. The scope of our study concerns not only ecological intelligent control systems driven by the Internet of Things technologies and big data analysis but also innovative solutions in traditional coal dust control technologies as water and fog dust suppression or membrane coal sheds construction. We have taken into consideration the proven or potential environmental, financial and social effectiveness of reviewed smart solutions.
Research of a vertical takeoff and landing micro UAV in the plane mode with the onboard control - measurement system
Authors: Nabiyev Rasim , Abdullayev Anar , Garayev Gadir
Published: November 2024

The article describes the onboard control-measurement system developed for recording the main technical parameters of vertical takeoff and landing (VTOL) micro-UAV motors and the data determining the airframe’s attitude during the flight. Using this system, the methodology of conducting a test flight has been developed to perform a diagnostic check of its motors and assess its condition using the VTOL micro-UAV in plane mode. Also, during the test flights, the number of revolutions, current consumption, and temperature of each motor, as well as angular changes along the three coordinate axes and acceleration of the airframe, were measured and recorded, and time graphs of the parameters were created based on these values. Analysis of the created time graphs allows for direct researching of the UAV in take-off, hover, flight and landing modes. The possibility of small-sized mini and micro unmanned aerial vehicles to diagnose their motors before, during, and after the flight, that is, to directly identify possible flight events in the air during the flight due to engine failure and to perform appropriate intervention has been shown by using of the developed onboard control - measuring system.
Enhancing internal combustion engine cooling efficiency through purification system design
Authors: Khaliullin Farit , Davletshin Rustam , Latipov Ravil , Khaliullina Zulfiya , Pikmullin Gennady , Nurmiev Azat
Published: November 2024

The article presents the design of a coolant purification filter installed in the cooling system of internal combustion engines, which is a hydrocyclone-type device with a filter cartridge. The method of technological calculation of the main parameters of the proposed filter is given. It is concluded that it is necessary to use coolant filters in modern commercial vehicle engines.
Research of thermal load in an energy efficient mechatronic truck transmission considering energy losses
Authors: Panasenkov Dmitry , Pankratov Fedor , Kartashov Aleksandr , Gazizullin Ruslan
Published: November 2024

The article examines the heating of a truck’s energy efficient mechatronic transmission during operation of an electric motor in maximum power mode. Particular attention is paid to the process of modeling conjugate heat transfer and its impact on the energy efficiency of mechatronic transmission. To solve this problem, computational fluid dynamics (CFD) methods are used, in particular the finite volume method (FVM), which allows for an accurate assessment of heat flows between different environments inside the transmission. Analysis of thermodynamic processes occurring in mechatronic transmission is of great importance for optimizing its operation and increasing reliability. The simulation results demonstrate the influence of various factors, such as driving speed, loads and temperature conditions, on the efficiency of heat exchange and, as a result, on the energy efficiency of the entire vehicle. These research contribute to the development of more efficient cooling systems and improved performance of trucks.
Utilizing digital twin technology for electric locomotive performance and fault analysis
Authors: Tretyakov Evgeniy A. , Budaev Artyom
Published: November 2024

Increase of traction and energy efficiency and reliability of electric locomotive operation can be ensured, including through the use of digital technologies. The purpose of this research is modeling of electric locomotive parameters and possible malfunctions on the way based on the “Digital Twin” technology. The paper presents the developed computer model of the electric locomotive electrical part, describes the approaches used for modeling of faults and prevention of emergency situations in transit, and also presents the results of the study.
Neutrino Experiments at the LHC
Authors: Kose Umut
Published: November 2024

The LHC neutrino experiments, FASER and SND@LHC were approved by the CERN Research Board in 2019 and 2021, respectively, to operate during LHC Run 3. Both experiments began taking physics data in July 2022 and have since recorded approximately 70 fb-1 of data from proton-proton collisions with a center-of-mass energy of 13.6 TeV. These experiments achieved the first direct observation of neutrino interactions at the LHC, using the active electronic components of their detector. Additionally, FASERν, using 2% of its data sample, detected the highest-energy νe and νµ interactions ever observed from an artificial source and made the first measurements of neutrino interaction cross-sections over energy ranges of 560–1740 GeV for νe and 520–1760 GeV for νµ.

Additionally, both experiments are actively searching for physics beyond the Standard Model, with FASER already publishing initial results on Dark Photons and Axion-like Particles. In this report, we will discuss the status of the experiments, including the detector concept, performance, and the first physics results from Run 3 data.
Future neutrino physics with Hyper-Kamiokande
Authors: Jesús-Valls César
Published: November 2024

Hyper-Kamiokande, the next-generation neutrino observatory in Japan, evolves from its predecessors, Kamiokande, Super-Kamiokande and T2K, with a significant upgrade to a 258-kton water Cherenkov detector equipped with 20,000 PMTs. Hyper-Kamiokande will host an extremely rich and broad physics program, covering areas from neutrino astrophysics to nucleon decay searches and precision neutrino oscillation measurements. Positioned as the far detector for the JPARC neutrino beam, with a baseline of 295 km, and utilizing near detectors such as the upgraded ND280 detector and INGRID currently used by the T2K experiment, Hyper-Kamiokande will have excellent sensitivity to CP violation signatures in neutrino oscillations. Set to be completed in 2027, we summarize Hyper-Kamiokande’s status and physics program, with an emphasis on its CP violation searches.
Exploring type-I seesaw under S 3 modular symmetry
Authors: Behera Mitesh Kumar , Ittisamai Pawin , Pongkitivanichkul Chakrit , Uttayarat Patipan
Published: November 2024

This work’s novelty lies in using the simplest group i.e. Γ(2) ≃ S 3 modular symmetry implemented on the canonical seesaw to explain neutrino phenomenology. Here, we construct and classify models based on the doublet and singlet representations of supermultiplets under S 3 discrete symmetry along with their respective modular weights, allowing a mass matrix for the neutrino sector with minimal use of free parameters, namely models A, B, C, D. These modular symmetries become advantageous in avoiding the requirements of multiple flavon fields and the intricacies of vacuum alignments. In this way, we endeavor to clarify the effect and significance of modular S 3 symmetry, which is considered in explaining the neutrino phenomenology viable with the current observations. Additionally, we also shed some light on the neutrinoless double beta decay.
Exploring b → cτν mediated baryonic decay modes in SMEFT framework
Authors: Panda Dhiren , Mohanta Rukmani
Published: November 2024

Motivated by the interplay between the LEFT and SMEFT operators at the electroweak scale, we study the interrelation among the B decays mediated by b → cℓνℓ, b → sνℓνℓ and b → sℓℓ (ℓ = e, µ, τ) quark level transitions in the context of six-dimensional SMEFT operators such as $${Q_{\ell q}^{(3)},\,{Q_{\ell edq}},\,Q_{\ell equ}^{(1)},\,Q_{\ell equ}^{(3)},\,{\rm{and}}\,Q_{\phi q}^{(3)}} $$. We constrain the new physics parameter space through a com-ℓequ ϕq prehensive global fit incorporating the observables RD, RD∗, Pτ(D∗), FL(D∗), RΛ, B(B0 → K∗νν), B(B → K+νν), B(B → K+τ+τ−) and B(Bs → τ+τ−). We then investigate the sensitivity of new physics in the semi-leptonic decay modes of b-baryons, specifically Ξb → Ξcτ− ν¯τ. We further explore the impact of the new physics couplings on several observables such as the differential branching ratio (DBR), forward-backward asymmetry ($${A_{FB}^\tau} $$) the lepton flavor non-universality ($${R_{{\Xi _b}}} $$) for this processes.
Role of the Right-Handed Neutrino in Bc+ → Bsμ+νμ Decay
Authors: Boora Priyanka , Kumar Dinesh , Lalwani Kavita
Published: November 2024

We perform a model-independent study of c → sµν mediated transitions to analyze the new physics effects in the presence of right-handed neutrinos. We have adopted the effective field theory approach and write the lowenergy effective Hamiltonian including all possible dimension-six operators. The Wilson coefficients introduced through low energy effective Hamiltonian encode all New Physics that can enter in c → s transition at the dimension-six operator level. These Wilson coefficients are determined through a χ2 fit by using the Miniut package to available experimental data of leptonic Ds+ → µ+νµ and semileptonic decays D0 → K−µ+νµ, D+ → K¯0µ+νµ and D0 → K∗−µ+νµ, D+ → K¯∗0µ+νµ, Ds+ → φµ+νµ. The differential decay width of Bc+ → Bsµ+νµ is derived to investigate the role of right-handed neutrinos in the search for new physics through the three-body decay process. We also make the predictions of q2 spectra for the mode Bc+ → Bsμ+νμ to inspect the effect of the allowed new physics in c → s sector through right-handed neutrinos to motivate the future measurements.
Searches for Dark Sector Particles at Belle and Belle II
Authors: Longo Savino
Published: November 2024

The Belle and Belle II experiment have collected samples of e+e− collision data at centre-of-mass energies near the ϒ(nS) resonances. These data have constrained kinematics and low multiplicity, which allow searches for dark sector particles in the mass range from a few MeV to 10 GeV. The latest dark sector results by Belle and Belle II, which constrain a variety of dark mediators, are discussed.
New Structures in the J/ψ J/ψ Mass Spectrum at CMS
Authors: Wang Xining , Yi Kai
Published: November 2024

A search is reported for structures near the J/ψ J/ψ mass threshold using a dataset of proton-proton collisions at √s = 13 TeV recorded with the CMS detector at the LHC, corresponding to an integrated luminosity of about 135 fb−1. Two structures are observed with a significance exceeding 5σ and evidence of an additional structure is reported with a local significance of 4.7σ.
A New Two-Parameter Family of Nonlinear Conjugate Gradient Method Without Line Search for Unconstrained Optimization Problem
Authors: ZHU Tiefeng
Published: November 2024

This paper puts forward a two-parameter family of nonlinear conjugate gradient (CG) method without line search for solving unconstrained optimization problem. The main feature of this method is that it does not rely on any line search and only requires a simple step size formula to always generate a sufficient descent direction. Under certain assumptions, the proposed method is proved to possess global convergence. Finally, our method is compared with other potential methods. A large number of numerical experiments show that our method is more competitive and effective.
Bifurcation and Stability Analysis of Time-Delayed Wheelset System under White Noise Excitation
Authors: WANG Xinyang , ZHANG Jiangang
Published: November 2024

Considering the impact of time delay in the lateral stiffness of the primary suspension and stochastic disturbances of equivalent conicity on the wheelset system, a stochastic time-delayed wheelset system is established. The wheelset system is transformed into a one-dimensional Itô stochastic differential equation using central manifold and stochastic averaging methods. The analysis of the system's stochastic stability is conducted through the maximum Lyapunov exponent and singular boundary theory. The combination of the stationary probability density method and numerical simulation is employed to discuss the types and conditions of stochastic P-bifurcation in the wheelset system. The results indicate that changes in speed and time delay induce stochastic P-bifurcations in the wheelset system, while changes in noise intensity do not lead to stochastic P-bifurcations. Both time delay and equivalent conicity affect the critical speed of the wheelset system, and the critical speed gradually increases with the decrease of time delay and equivalent conicity.
Double-Pole Solution and Soliton-Antisoliton Pair Solution of MNLSE/DNLSE Based upon Hirota Method
Authors: LUO Runjia , ZHOU Guoquan
Published: November 2024

Hirota method is applied to solve the modified nonlinear Schrödinger equation/the derivative nonlinear Schrödinger equation (MNLSE/DNLSE) under nonvanishing boundary conditions (NVBC) and lead to a single and double-pole soliton solution in an explicit form. The general procedures of Hirota method are presented, as well as the limit approach of constructing a soliton-antisoliton pair of equal amplitude with a particular chirp. The evolution figures of these soliton solutions are displayed and analyzed. The influence of the perturbation term and background oscillation strength upon the DPS is also discussed.
Microplastics in Freshwater Aquaculture Fishpond System in Yichang, China: The Occurrence, Characteristics and Potential Risks
Authors: JIA Manke , XU Wenrui , LIU Qin , ZHOU Lijunjun , SHI Xiaotao , TAN Hui , LIU Liming
Published: November 2024

At present, microplastics have attracted much concern worldwide, but still few researches have focused especially on aquaculture fishponds. In this study, investigations were conducted in Zhijiang (ZJ) and Yidu (YD) areas of Hubei, China, typical freshwater aquaculture bases of the middle and lower reaches of the Yangtze River, on the occurrence and distribution characteristics of microplastics in fishpond system. It was found that microplastics presented in all samples from water, sediment, fish, and fish feed. Most microplastics detected had a diameter of <1.0 mm, blue and black were the most common colors, and fiber shape was the dominant type. The most common polymer types were polyethylene (PE) and polypropylene (PP). Microplastic abundance in fish was correlated with that in sediment and water. The potential ecological risk index values indicated that water, sediment, and fish samples were under moderate pollution risk. The results of this study illustrated the microplastics pollution situation in freshwater cultured fishpond systems, and the findings presented here will serve as a reference for future investigations of the environmental risks of microplastics in aquaculture environment.
A Case of Thoracic SMARCA4-Deficient Undifferentiated Tumor on 18F-FDG PET/CT
Authors: Zhao Gege , Huang Zhongke
Published: November 2024

A 65-year-old man, who denied a smoking history, presented with chest distress and pain persisting for over a week. A contrast-enhanced chest CT scan revealed a large irregular mass in the right thoracic cavity with heterogeneous enhancement. The 18F-FDG PET/CT showed a large mass in the right thoracic cavity with heterogeneous markedly high FDG uptake. The patient subsequently underwent a bronchoscopic-guided mucosal biopsy at the opening of the right upper lobe. The histological and immunohistochemical findings were consistent with thoracic SMARCA4-deficient undifferentiated tumor.
Bewertung von DiGAs in der Diabetologie
Authors: Roth Lena M.K. , Verket Marlo D. , Steckhan Nico , Vité Sabrina , Müller-Wieland Dirk , Schwarz Peter E.H.
Published: November 2024

Lena M.K. Roth1, Marlo D. Verket2, Nico Steckhan1, Sabrina Vité2, Dirk Müller-Wieland2, Peter E.H. Schwarz1,2 für die Kommission Digitalisierung der Deutschen Diabetes Gesellschaft (DDG)

Hintergrund: Das wachsende Angebot digitaler Gesundheitsanwendungen (DiGAs) eröffnet neue Möglichkeiten in der Patientenversorgung, bringt aber auch neue Herausforderungen mit sich. Das DiGA-Verzeichnis des BfArM bietet zwar eine Übersicht über verfügbare DiGAs, doch fehlen bisher leicht zugängliche Hilfsmittel zur Bewertung ihrer Effektivität im klinischen Alltag.

Methode: Die Kommission Digitalisierung der Deutschen Diabetes Gesellschaft (DDG) hat einen Kriterienkatalog für digitale Diabetes-Therapien entwickelt, um die Auswahl geeigneter Anwendungen für Behandelnde zu erleichtern und langfristig die Qualität digitaler Therapien zu verbessern. Hierzu wurden im Rahmen von Expertenrunden bestehende Qualitätsstandard und validierte Projekte zur Bewertung unterschiedlicher Aspekte von DiGAs extrahiert und zusammengefasst. Anschließend wurde die Relevanz durch eine Befragung von DDG-Mitgliedern bewertet.

Ergebnisse: Insgesamt konnten 83 Items identifiziert und 9 Kategorien zugeordnet werden sowie deren Relevanz bewertet werden. In Diskussionen und der Befragung haben sich vor allem die Kategorien Evidenz und Ziel als besonders relevant herausgestellt.

Schlussfolgerung: Dieser Artikel stellt den Entwicklungsprozess sowie die Ergebnisse des Bewertungskatalogs für DiGAs vor. Langfristig soll dieser in der Praxis eine leicht zugängliche Hilfestellung im zunehmend digitalen Versorgungsalltag des Diabetes in Deutschland darstellen.
Vascularized Palmaris Longus Tendon Graft in Delayed Tendon Injuries of Hand
Authors: Handoo Yog Raj
Published: November 2024

Delayed tendon injuries of the hand often require auto tendon grafts, the success depending largely on tendon type, its own synovial cover or provided by tendon bed, and tendon bed vascularity. Tendon graft healing has been extensively studied, where tendon does increase its vascular response to trauma, attrition, or degeneration. Initially surviving through synovial fluid imbibition, followed by vascular invasion from surrounding tissues. Tendon grafts without synovial covering or in hypovascular/scarred beds have increased vascular response in the form of flimsy tissue which vascularises tendon grafts but later, they become adhesions, restricting tendon movement and final functional finger results. To overcome this hypovascular state, tendon grafts are substituted with vascularized tendon grafts. We present two cases of vascularized palmaris tendon graft in delayed tendon injuries of hand having hypovascular tendon beds, along with operative technique and results along discussion and conclusion.
Influencing machines: Trevor Paglen and Anthony Downey
Authors: Paglen Trevor , Downey Anthony
Published: November 2024

How do you train an artificial intelligence (AI), or automated image processing model, to classify and recognize images? This question is central to Trevor Paglen’s Adversarially Evolved Hallucination series (2017–ongoing), a project that employs a generative adversarial network (GAN) to classify, identify and crucially, produce unique images. Paglen’s series demonstrates how images produced by AI image processing platforms—in this instance, a GAN—are, despite claims, never predictable or, indeed, accurate in their classifications. A significant indicator of this unreliability is evident in the potential for GANs, alongside other generative AI (GenAI) models, to hallucinate and erroneously classify images. Notwithstanding this systemic failing, automated image processing platforms remain central to classification tasks, including those associated with facial recognition and surveillance. They remain, for that reason, central to defining, if not pre-defining, how we perceive and look at the world through automated models of machine vision. Encouraged to see like machines, or at least take their classifications seriously and act upon them accordingly, we now inhabit a realm of perception defined by “machine realism”, if not algorithmic delusion. Enquiring into how we can better understand the degree to which AI encodes our perception of the world, it is this regimen of “machine realism” that Paglen and Downey explore throughout the following conversation: If AI models of image perception replace ocular-centric ways of seeing, they ask, do these apparatuses have the capacity to not only (pre)define but, in time, further estrange and alienate us from the world?
Shubnikov-de Haas oscillations in strong electric fields
Authors: Kolesnichenko Yu. A.
Published: November 2024

The effect of a strong electric field E on quantum oscillations of the conductivity of a bulk metal conductor in crossed electric and magnetic fields is investigated. It is shown that the amplitude of the oscillations decreases as the electric field increases. In sufficiently high fields, when the electron acquires in a length equal to the Larmor radius an energy comparable with the distance between discrete levels the relation between the electrical conductivity and E becomes oscillatory.
Mössbauer effect for impurity atoms in a ferromagnet
Authors: Los' V. F.
Published: November 2024

The method of superoperators is used to effect a complete and rigorous discussion of the Mössbauer effect for impurity atoms with weakly coupled electron spins in a ferromagnet. The analysis is made for an arbitrary relationship between the characteristic frequency of the hyperfine interaction ωhf and the relaxation rate τrel−1 of the effective magnetic field acting on the nuclear spin. It is shown that in the case of slow relaxation ωhf≫τrel−1 the Mössbauer spectrum has a multiplet structure whose lines are determined by the quantum numbers of the nuclear spin and the spin of the electron shell of the impurity atom. This contrasts with the fast-relaxation case investigated previously ωhf≫τrel−1, when the lines of the hyperfine structure are classified solely by the quantum numbers of the nuclear spin. The relaxation time τrel is given by the correlation function for the spins of the atoms of the ferromagnet without impurities. The expressions that are derived are valid over a wide range of temperatures T < Tc up to temperatures close to the Curie point Tc. They can be used to calculate the shape of the Mössbauer spectrum for any values of the spins of the nucleus and the electron shell of the impurity atom and for any relation between ωhf and τrel−1.
EPR spectrum at tellurium vacancies in Pb1−xSnxTe solid solutions
Authors: Bratashevskii Yu. A. , Prozorovskii V. D. , Kharionovskii Yu. S.
Published: November 2024

The superposition of two EPR spectra is observed in n-type Pb0.84Sn0.l6Te single crystals in the temperature range 1.6–18°K at a frequency of v = 36.04·109 Hz, one corresponding to the EPR spectrum of a system of spins in the triplet state whose symmetry axes are randomly disoriented in space with an initial splitting of D≃0.1 cm−1, and the other to the EPR spectrum of a system of spin-centers with S = 1/2. It is shown that with an increase in temperature the integral intensity of the spectra decreases, while the concentration of conduction electrons increases. Analysis of the shape of the absorption curve and the correlation established between changes in concentration of tellurium vacancies, of conduction electrons, and the intensity of the EPR spectrum enable us to draw conclusions about the connection of its origin with the tellurium vacancies.
Spin splitting and the effective g factor for T holes in Bi-Sb alloys
Authors: Brandt N. B. , Korchak B. A. , Chudinov S. M.
Published: November 2024

The direct energy gap ϵgL and the indirect gap ϵLT have been examined as functions of magnetic field and pressure for Bi1−xSbx semiconducting compounds over the range in Sb concentration 7.5 < x < 10 at.%; the measurements have been made in fields H up to 65 kOe, with the field along the trigonal axis C3 of the crystal, at pressures p up to 15 kbar and temperatures of 1.8−300°K. The gaps have been deduced from the temperature dependence of the longitudinal magnetoresistance R33 for H parallel to C3. It has been found that the most likely effective g for T holes with this field orientation is in the range 4.0±0.6< ghT< 4.7±0 7. In the inverted-spectrum region at p > pi (where pi is the pressure for transition to the gapless state at points in the Brillouin zone) there is reversed inversion of the L bands in the magnetic field. The band inversion in the field for H parallel to C3 is generally of the same type as for H perpendicular to C3.
The magnetic susceptibility of a two-dimensional crystal
Authors: Vorontsov S. A. , Svechkarev I. V.
Published: November 2024

The orbital magnetic susceptibility has been determined for strictly two-dimensional motion of the conduction electrons in a layered structure; expressions have been derived for the major contributions to the susceptibility for certain types of perturbation in a parabolic spectrum due to Bragg planes. Results are presented from a numerical calculation on the effects of the chemical-potential level on the orbital and spin susceptibilities for the case where there is one plane, which show that there are sharp features at the critical points in the spectrum.
Third-order elastic moduli of alkali metals
Authors: Zarochentsev E. V. , Safronov V. P. , Trefilov A. V.
Published: November 2024

The third-order elastic moduli of alkali metals are calculated in the local two-parameter pseudopotential model {V. G. Vaks, E. V. Zarochentsev, S. P. Kravchuk, V. P. Safronov, and A. V. Trefilov, Institute of Metal Physics Preprint [in Russian], Sverdlovsk (1976); V. G. Vaks and A. V. Trefilov, Fiz. Tverd. Tela 19, 244 (1976) [Sov. Phys. Solid State 19, 139 (1976)}. Deviations from the Cauchy relations are analyzed. The pressure derivatives of the second-order elastic moduli are calculated as a function of the temperature. Comparisons are made with the results of experimental and other theoretical studies.
Inelastic relaxation in Pb1−xSnxTe solid solutions
Authors: Bratashevskii Yu. A. , Prozorovskii V. D. , Kharionovskii Yu. S.
Published: November 2024

Measurements were made of the isothermal changes of the dielectric permittivity and of the electron concentration in single crystals of Pb0.84 Sn0.16 Te solid solutions during inelastic relaxation of such crystals after adiabatic cooling and heating. The relaxation time has been found to become much longer after cooling to about T = 4.3°K. At this temperature the system reaches its equilibrium state after 4−5 h.
Temperature dependence of the excess molar volume of He3-He4 mixtures over the range from 1.5 to 14°K
Authors: Bogoyavlenskii I. V. , Karnatsevich L. V. , Yurchenko S. I.
Published: November 2024

The molar volumes of He3, He4 and a mixture of He3-He4 with 50.7 mole% He3 were determined by the dielectric constant measurement method over the temperature range 1.5 to 14°K, at two pressure values of 3 and 10 atm. It was established that the temperature dependence of the excess molar volume VE, characterizing the deviation of the solution from ideal, has a nonmonotonic sign-alternating nature. With increase of pressure from 3 to 10 atm, the excess volume is decreased in absolute value by a factor of 30−40. The established behavior of VE(T) was found to have a qualitative explanation within the scope of the Prigogine model for isotopic systems.
On the question of the ground state of a magnetic polaron in a ferromagnetic crystal (S ≥ 1)
Authors: Petrova T. G.
Published: November 2024

The energy spectrum of a nonmetallic ferromagnetic crystal is investigated in the presence of a moving conduction electron which interacts with the atomic spins of a magnet (S ≥ 1). Because of the antiferromagentic nature of this interaction under consideration, the calculation of the system ground state is performed with 2S spin deviations bound to the electron, taken into account. It is shown that an increase in the number of spin deviations does not result in the appearance of states lying below the whole system spectrum obtained in a single-magnon approximation. In other words, for any quantity S the system ground state is determined by the least value of the energy of its single-magnon spectrum.
Thermomagnetic phenomena in a dimension-quantized film in a strong magnetic field
Authors: Askerov B. M. , Kuliev B. I. , Éminov R. F.
Published: November 2024

A study is made of the transverse thertno-emf α and the Nernst-Ettingshausen (N-E) coefficient Q in dimension-quantized films in a strong magnetic field perpendicular to the plane of the film in the case of scattering by acoustic and piezoacoustic phonons. It is shown that for superthin films with a nondegenerate electron gas, α and Q may be considerably larger than in bulk specimens. In the case of films with a degenerate electron gas, a concrete expression is obtained for α and it is shown that the transverse emf oscillates with variation of the thickness of the film. The positions of the maxima and the period of oscillation are determined as functions of the concentration of the conduction electrons. It is established that for superthin films Q is strongly dependent on the thickness.
Mechanical properties of a chain of superconducting rings containing a frozen-in magnetic flux
Authors: Shikina N. I.
Published: November 2024

It is shown that one-dimensional and two-dimensional chains composed of linked superconducting rings with “frozen-in” magnetic flux acquire the property of changing their length elastically.
KCTD10
p.C124W variant contributes to schizophrenia by attenuating LLPS-mediated synapse formation
Authors: Mu Chenjun , Liu Pan , Liu Liang , Wang Yaqing , Liu Kefu , Li Xiangyu , Li Guozhong , Cheng Jianbo , Bu Mengyao , Chen Han , Tang Manpei , Yao Yuanhang , Guan Jun , Ma Tiantian , Zhou Zhengrong , Wu Qingfeng , Li Jiada , Guo Hui , Xia Kun , Hu Zhengmao , Peng Xiaoqing , Lang Bing , Li Faxiang , Chen Xiao-wei , Xu Zhiheng , Yuan Ling
Published: November 2024

KCTD10, a member of the potassium channel tetramerization domain (KCTD) family, is implicated in neuropsychiatric disorders and functions as a substrate recognition component within the RING-type ubiquitin ligase complex. A rare de novo variant of KCTD10, p.C124W, was identified in schizophrenia cases, yet its underlying pathogenesis remains unexplored. Here, we demonstrate that heterozygous KCTD10 C124W mice display pronounced synaptic abnormalities and exhibit schizophrenia-like behaviors. Mechanistically, we reveal that KCTD10 undergoes liquid–liquid phase separation (LLPS), a process orchestrated by its intrinsically disordered region (IDR). p.C124W mutation disrupts this LLPS capability, leading to diminished degradation of RHOB and subsequent excessive accumulation in the postsynaptic density fractions. Notably, neither IDR deletion nor p.C124W mutation in KCTD10 mitigates the synaptic abnormalities caused by
Kctd10
deficiency. Thus, our findings implicate that LLPS may be associated with the pathogenesis of KCTD10-associated brain disorders and highlight the potential of targeting RHOB as a therapeutic strategy for diseases linked to mutations in KCTD10 or RHOB.
A novel approach for observing band gap crossings using the SIMS technique in Pb1−x
Sn
x
Te
Authors: Khosravizadeh Zeinab , Dziawa Piotr , Dad Sania , Dabrowski Andrzej , Jakiela Rafał
Published: November 2024

This paper introduces a pioneering application of secondary ion mass spectrometry (SIMS) for estimating the electronic properties of Pb1−x
Sn
x
Te, a compound categorized as a topological crystalline insulator. The proposed approach marks the first application of SIMS for such estimations and focuses on investigating variations in ionization probabilities and shifts in the energy distribution of secondary ions. The ionization probabilities are influenced by pivotal parameters such as the material's work function and electron affinity. The derivation of these parameters hinges upon the energy gap's positioning relative to the vacuum level for varying values of

within the Pb1−x
Sn
x
Te compound. The findings elucidate noteworthy alterations in SIMS signals, particularly near the critical point of band-gap closing.
Impact of Structural Design of Knitted Fabrics on Shielding from Radiation of Wi-Fi Technologies
Authors: Grecka M , Baltina I , Blums J , Eidaks J
Published: November 2024

The goal of the study is to determine and compare the attenuation of electromagnetic waves at 2.4 - 2.5 GHz frequency between plain single jersey and 1x1 rib knitted fabric. For knitting the samples, three different types of metal-contained yarns, their combinations, and cotton yarn were used. Two horn antennas and a network analyzer were used to characterize the transmission of the samples in the frequency range of 2.4-2.5 GHz. Obtained results show, that in mentioned frequency range single jersey knitted samples attenuate better than the rib samples.
Design and Simulation of Three-Band Microstrip Resonator Bandpass Filters for Wireless Communication Systems
Authors: Andreica Sergiu , Munteanu Calin , Constantinescu Claudia , Pacurar Claudia , Giurgiuman Adina , Gliga Marian , Dusa Sabin
Published: November 2024

This research focuses on the design, simulation, and practical implementation of three-band microstrip resonator bandpass filters for wireless communication systems. Key parameters targeted in optimizing these filters include coupling coefficient, external quality factor, and fractional bandwidth, among others. Using ANSYS HFSS software, the electromagnetic behavior of the filters was analyzed to enhance their design. The proposed filters were fabricated on RT/Duroid 5880 substrate and experimentally validated using a vector network analyzer. Experimental results were compared with simulations, demonstrating satisfactory performance at specific frequencies relevant to Wi-Fi, 5G, and radar applications. Additionally, a comparative study with other similar filters from the literature was conducted to evaluate their performance.
Evaluation of the head exposure to a static magnetic field while walking around 1.5T and 7T MRI magnets using single and spatially distributed Hall probes
Authors: Zradziński Patryk , Karpowicz Jolanta , Quirin Thomas , Jeker Dominic , Pascal Joris , Stępniewski Andrzej , Gryz Krzysztof
Published: November 2024

The aim of this study was to compare the use of static magnetic field (SMF) body-worn exposure monitors equipped with single or spatially distributed probes. The SMF exposure monitor allow to study the time-pattern of head movement-related exposure to SMF (B, mT; dB/dt, mT/s) while active near 1.5 T and 7 T magnetic resonance imaging (MRI) magnets. When analysing the distribution of B-field samples recorded during a simple walk around MRI magnets, using relevant statistical tests it was found that the results recorded by various probes are statistically significantly different. The observed scale of differences between the results from various probes revealed the possible misclassification of localised exposure of particular head sections when only a single probe is used to evaluate exposure (especially with respect to dB/dt values). Larger differences between probes were found in recordings near MRI magnets of smaller dimensions (1.5 T).
An innovative mixed reality approach for Robotics Surgery
Authors: Rus Gabriela , Al Hajjar Nadim , Zima Ionut , Vaida Calin , Radu Corina , Chablat Damien , Ciocan Andra , Pîslă Doina
Published: November 2024

Robotic-assisted procedures offer numerous advantages over traditional approaches, including improved dexterity, reduced fatigue, minimized trauma, and superior outcomes. However, the main challenge of these systems remains the poor visualization and perception of the surgical field. The goal of this paper is to provide an innovative approach concerning an application able to improve the surgical procedures offering assistance in both preplanning and intraoperative steps of the surgery. The system has been designed to offer a better understanding of the patient through techniques that provide medical images visualization, 3D anatomical structures perception and robotic planning. The application was designed to be intuitive and user friendly, providing an augmented reality experience through the Hololens 2 device. It was tested in laboratory conditions, yielding positive results.
Wheelchair posture correction equipment
Authors: Alina-Elena Ver , Istvan Ver , Dan Mandru Silviu
Published: November 2024

This paper presents an equipment for the detection and correction of the vicious posture of the wheelchair users, as well as of people who spend more time in a sitting position and need to correct their posture. Its second action is to prevent / early detect of bedsores in the sitting area. Based on the structure and components of the equipment, its functionality is emphasized and the developed prototype is presented. Some potential applications of the proposed equipment are described, for five different wheelchair vicious postures and our initial results are given.
Continuous Transfer Function Modeling for Predicting the COVID-19 Spread
Authors: Stancioi Cristina-Maria , Muresan Vlad , Abrudean Mihail , Stelian Munteanu Mihai , Sita Valentin
Published: November 2024

In this paper, Covid-19, a transmissible virus that is spreading over the globe, represents undoubtedly one of the most profound incidents in human history, influencing people’s everyday activities for an extended period of time. Coronaviruses are among the most common infections which harm the human respiratory system. SARS-CoV-2 is mostly transmitted by droplets in the air, especially aerosols, produced by a COVID-19 infected person who breathes in close vicinity to other individuals, sneezes, talks or coughs. The data available at the moment enables significant modelling advancements for the prediction and simulation of the infectious disease dynamic transmission. Quantifying and filtering the collected data is a vital aspect of this research. The current study gives valuable insights for the development of mathematical models for estimating and predicting, with a focus on continuous transfer function models, using data collected from Romanian territory. By taking into account the information received, the structural parameters of the suggested mathematical models are calculated, and the power and effectiveness of the obtained models are tested using simulation.
Non-Defectivity of Segre–Veronese varieties
Authors: Abo Hirotachi , Brambilla Maria Chiara , Galuppi Francesco , Oneto Alessandro
Published: November 2024

We prove that Segre–Veronese varieties are never secant defective if each degree is at least three. The proof is by induction on the number of factors, degree, and dimension. As a corollary, we give an almost optimal non-defectivity result for Segre–Veronese varieties with one degree equal to one and all the others at least three.
Computing the EHZ capacity is 𝑁𝑃-hard
Authors: Leipold Karla , Vallentin Frank
Published: November 2024

The Ekeland–Hofer–Zehnder capacity (EHZ capacity) is a fundamental symplectic invariant of convex bodies. We show that computing the EHZ capacity of polytopes is

N
P

NP

-hard. For this we reduce the feedback arc set problem in bipartite tournaments to computing the EHZ capacity of simplices.
Exploring Life and Languages in the Roman Western Provinces
Authors: Mullen Alex
Published: November 2024

This chapter introduces the final volume of the LatinNow project and sets out how we have explored life and language in the western provinces. It opens with a soundscape from Roman Southwark involving a moritix from Gaul that illustrates our themes and interdisciplinary perspectives. The ‘characterful’ data used for our research are discussed, focusing on the database of inscribed objects, and how it can be deployed in long-standing debates on the ‘epigraphic habit’. One early expression of this habit, the epitaph of Gaius Iulius Italus from Narbonne, leads into a discussion of the nexus between language, identity, culture, and ethnicity, and our vision for ancient sociolinguistics. The recurring issue of the relation between oral and written expressions of language triggers a presentation of our views on how to approach ancient socio-literacy—namely, combining both inscribed objects of all kinds and writing equipment, and considering the social dimensions and contexts.
Writing Latin in Germania Superior
Authors: Willi Anna
Published: November 2024

This chapter uses the evidence of non-monumental epigraphy and writing equipment finds to explore factors that are traditionally seen as drivers of the spread of Latin literacy in the Roman province Germania Superior, such as military presence and settlement status. Adding an everyday writing perspective to the evidence of monumental epigraphy paints a more differentiated picture of Latin literacy in the province. Everyday writing appeared first and spread more widely in certain areas, and, while literacy spread quickly throughout the province after the Romans had arrived, this process was not uniform. An analysis of literacy in the colony of Augusta Raurica, on the one hand, and of the impact of military presence, on the other, shows that numerous variables affected different literacies differently in different contexts, resulting in a wide array of literate realities across the province.
The Obliger
Authors: Whitehouse Deja
Published: November 2024

This chapter explores Frieda Harris’s self-perception as an obliger, one who devotes herself to serving the domestic and familial needs of others at the expense of her own aims and interests. Analysis is presented within the social and political context of England during the Second World War and its immediate aftermath, citing contemporary and historical written sources. Harris’s relationships with her family and Aleister Crowley are considered in detail, with comparisons between Harris’s grudging support for her husband and her willing assistance to Crowley. Harris’s correspondence and her husband’s journals are analysed to assess how each perceived her role as obliger. The impact of Harris’s relationship with Crowley on her marriage, her husband’s political career, and the Harrises’ societal position is also explored.
Life after Crowley
Authors: Whitehouse Deja
Published: November 2024

This chapter considers Harris’s life after the death of Aleister Crowley in 1947. The twilight years of her marriage, during which time Harris became acquainted with the Indian dancer Raj Gopal, are discussed. Gopal’s commission for her to design sets for his ballets and his invitation to her to join him on the set of Elephant Walk in Ceylon initiated the next stage of her artistic and esoteric development. Her involvement with Gopal and her life in India are examined through her correspondence with Gerald Yorke and William Holt. In particular, Harris’s quest for spiritual fulfilment is analysed, culminating in her realisation that her esoteric path was intrinsically linked with her artwork.
Comparative analysis of epistemic stance in abstracts of published biomedical research and associated National Institutes of Health funding applications (1985–2020)
Authors: Millar Neil , Batalo Bojan
Published: November 2024

Research funded by the US National Institutes of Health (NIH) exerts considerable influence over the trajectory of biomedical science and healthcare policy and practice. Here, we extend previous research by assessing the relationship between the expression of epistemic stance (i.e. confidence in propositions) in successful NIH funding applications and the subsequent research publications. Analysis of 140 stance features (modal verbs, hedges, and boosters) in all PubMed abstracts describing NIH-funded research during the period 1985–2020 identified trends that broadly mirrored those previously reported for abstracts of the associated funding applications. We argue that trends, in part, indicate that investigators adopted a stance that became less cautious and less tentative (e.g. consistent declines for appear, seem, and probably), and increasingly confident, assertive, and empirical (e.g. consistent increases for highlight, likely, and typically). Discussing our results in relation to changes in the biomedical research system, including growth in promotional writing strategies, we suggest that increasing salesmanship in the NIH research system is in part a downstream effect of funding mechanisms. We also infer methodological and pedagogic implications for analysis of metadiscourse.
Critical Review of Recently Published Studies Claiming Long-Term Neurocognitive Abnormalities in Mild Traumatic Brain Injury
Authors: Boone Kyle B , Vane Ryan P , Victor Tara L
Published: November 2024

Mild traumatic brain injury (mTBI) is the most common claimed personal injury condition for which neuropsychologists are retained as forensic experts in litigation. Therefore, it is critical that experts have accurate information when testifying as to neurocognitive outcome from concussion. Systematic reviews and six meta-analyses from 1997 to 2011 regarding objective neurocognitive outcome from mTBI provide no evidence that concussed individuals do not return to baseline by weeks to months post-injury. In the current manuscript, a critical review was conducted of 21 research studies published since the last meta-analysis in 2011 that have claimed to demonstrate long-term (i.e., ≥12 months post-injury) neurocognitive abnormalities in adults with mTBI. Using seven proposed methodological criteria for research investigating neurocognitive outcome from mTBI, no studies were found to be scientifically adequate. In particular, more than 50% of the 21 studies reporting cognitive dysfunction did not appropriately diagnose mTBI, employ prospective research designs, use standard neuropsychological tests, include appropriate control groups, provide information on motive to feign or use PVTs, or exclude, or adequately consider the impact of, comorbid conditions known to impact neurocognitive scores. We additionally analyzed 15 studies published during the same period that documented no longer term mTBI–related cognitive abnormalities, and demonstrate that they were generally more methodologically robust than the studies purporting to document cognitive dysfunction. The original meta-analytic conclusions remain the most empirically-sound evidence informing our current understanding of favorable outcomes following mTBI.