cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Updated evaluation of $\varepsilon_K$ in the Standard Model with lattice QCD inputs
Creators: name: Bailey, Jon A.
name: Lee, Sunkyu
name: Lee, Weonjong
name: Leem, Jaehoon
name: Park, Sungwoo
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We report a strong tension in $\varepsilon_K$ at the $4σ$ level between the experimental value and the theoretical value calculated directly from the standard model using lattice QCD inputs such as $\hat{B}_K$, $|V_{cb}|$, $|V_{us}|$, $ξ_0$, $ξ_2$, $ξ_\text{LD}$, $F_K$, and $m_c$. The standard model with lattice QCD inputs describes only 70% of the experimental value of $\varepsilon_K$, and does not explain its remaining 30%. We also find that this tension disappears when we use the inclusive value of $|V_{cb}|$ (results of the heavy quark expansion based on QCD sum rules) to determine $\varepsilon_K$. This tension is highly correlated with the present discrepancy between the exclusive and inclusive values of $|V_{cb}|$. In order to resolve, in part, the issue with $|V_{cb}|$, it would be highly desirable to have a comprehensive re-analysis over the entire set of experimental data on the $\bar{B} \to D^* \ell \barν$ decays using an alternative parametrization of the form factors, such as the BGL parametrization, and a comparison with results of the CLN method.
description: 17 pages, 12 figures, references updated, title changed
A Time-Aware Approach to Early Detection of Anorexia: UNSL at eRisk 2024
Creators: name: Thompson, Horacio
name: Errecalde, Marcelo
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computers and Society (cs.CY)
subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: The eRisk laboratory aims to address issues related to early risk detection on the Web. In this year's edition, three tasks were proposed, where Task 2 was about early detection of signs of anorexia. Early risk detection is a problem where precision and speed are two crucial objectives. Our research group solved Task 2 by defining a CPI+DMC approach, addressing both objectives independently, and a time-aware approach, where precision and speed are considered a combined single-objective. We implemented the last approach by explicitly integrating time during the learning process, considering the ERDEθ metric as the training objective. It also allowed us to incorporate temporal metrics to validate and select the optimal models. We achieved outstanding results for the ERDE50 metric and ranking-based metrics, demonstrating consistency in solving ERD problems.
description: In Conference and Labs of the Evaluation Forum (CLEF 2024), Grenoble, France
Smart Contract Security: Evaluating Efficiency and Performance of Preventing Re-entrancy Attacks
Creators: name: Pakhomovskii, Aleksandr
Publisher: name: Zenodo
Year: 2025

description: This paper provides a deep overview of popular smart contract protection

mechanisms used in blockchain technology against re-entry attacks. The

conducted analysis of research has shown quite convincingly that this type of

attack is the most significant among others and is the subject of most scientific

work and preventive measures. This is a very clear indication of the relevance of

this topic in the field of digital security, and more precisely in the field of

blockchain transaction security.

T o increase the practical significance of this work, performance tests were

also performed on the basic smart contracts, which were protected by various

methods. The methodology for assessing the performance of smart contracts in

the Ethereum system (decentralized blockchain with smart contract functionality)

is determined by gas costs. This is the only one main metric for assessing the

performance of smart contracts (for example, when transferring funds from one

account to another).

This approach, together with comparative characteristics of protective

mechanisms, should provide a deep understanding to developers of smart

contracts that are aimed at ensuring the performance and security of the systems

being developed. The work may be useful to other researchers, as well as

anyone interested in blockchain technologies, to improve their understanding of

modern smart contract security systems and methods for evaluating their

performance.

The source code for all implementations, analyses, and experiments

described in this thesis is available at the author's public repository on GitHub

(Pakhomovskii, 2024).
Sample description and analytical methods from Mafic glass compositions: a record of magma storage conditions, mixing and ascent
Creators: name: Cashman, Katharine V.
name: Edmonds, Marie
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: 40304 Igneous and Metamorphic Petrology
subject: FOS: Earth and related environmental sciences
subject: 40307 Ore Deposit Petrology
subject: 40314 Volcanology

description: Contains a description of additional samples, including full thin section images, as well as analytical methods
On the Boris solver in particle-in-cell simulation
Creators: name: Zenitani, Seiji
name: Umeda, Takayuki
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computational Physics (physics.comp-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: A simple form of the Boris solver in particle-in-cell (PIC) simulation is proposed. It employs an exact solution of the Lorentz-force part, and it is equivalent to the Boris solver with a gyrophase correction. As a favorable property for stable schemes, this form preserves a volume in the phase space. Numerical tests of the Boris solvers are conducted by test-particle simulations and by PIC simulations. The proposed form provides better accuracy than the popular form, while it only requires few additional computation time.
description: 7 pages; 3 figures
Experimental validation of ultra-shortened 3D finite element models for frequency-domain analyses of three-core armored cables
Creators: name: del-Pino-López, Juan Carlos
name: Cruz-Romero, Pedro
Publisher: name: arXiv
Year: 2024
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Recently, large offshore wind power plants have been installed far from the shore, using long HVAC three-core armored cables to export power. Its high capacitance may contribute to the appearance of unwanted phenomena, such as overvoltages or resonances at low frequencies. To adequately assess these problems, detailed and reliable cable models are required to develop time-domain/frequency-domain analyses on this type of cables. This paper presents, for the first time in the literature, an assessment on the performance of 3D finite element method-based (3D-FEM) models for developing frequency-domain analyses on three-core armored cables, confronting simulation results with experimental measurements found in the literature for three real cables. To this aim, a simplified ultra-shortened 3D-FEM model is proposed to reduce the simulation time during frequency sweeps, through which relevant aspects never analyzed before with frequency-domain 3D-FEM simulations are addressed, such as total losses, induced sheath current, magnetic field around the power cable, positive and zero sequence harmonic impedances, as well as resonant frequencies. Also, a time-domain example derived from the frequency-domain analysis is provided. Remarkable results are obtained when comparing computed values and measurements, presenting the simplified ultra-shortened 3DFEM model as a valuable tool for the frequency-domain analysis of these cables.
Additional file 5: of The interaction of YBX1 with G3BP1 promotes renal cell carcinoma cell metastasis via YBX1/G3BP1-SPP1- NF-ÎşB signaling axis
Creators: name: Wang, Yong
name: Su, Jing
name: Wang, Yiting
name: Fu, Donghe
name: Ideozu, Justin
name: Geng, Hua
name: Cui, Qiqi
name: Wang, Chao
name: Chen, Ruibing
name: Yu, Yixi
name: Niu, Yuanjie
name: Yue, Dan
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Marine Biology
subject: Cancer
subject: Hematology
subject: Virology

description: Table S1. Expression of YBX1, G3BP1 and SPP1 in RCC tissues. (DOCX 13 kb)
Брітченко І.Г. Вплив зовнішнього середовища на формування дослідницьких проектів/Колодинський С.Б., Брітченко І.Г.//Матеріали ІХ Міжнародної науково-практичної конференції «Управління проектами: проектний підхід в сучасному менеджменті» (м. Одеса, 11-12 жовтня 2018 р.). - Одеса: ОДАБА, 2018. - С. 167-172.
Creators: name: Britchenko, Igor
name: Ігор Брітченко
name: Колодинський Сергій
Publisher: name: figshare
Year: 2018
Subjects: Economics

description: У сучасному світі відбувається переоцінка основних цінностей. Від економічної спрямованості суспільство переходить до інноваційної, від нагромадження матеріального багатства як основи особистого добробуту – до нагромадження інформації як основи суспільного прогресу. Не так володіння матеріальними благами, як володіння інформацією та інтелектуальним потенціалом визначають місце людини в сучасному суспільстві. Інвестиції в людський капітал і формування на цій основі інтелектуального капіталу суспільства перетворюються на пріоритетний загальнонаціональний інтерес.
Structural and vibrational study of Zn(IO3)2 combining high-pressure experiments and density-functional theory
Creators: name: Liang, A.
name: Popescu, C.
name: Manjon, F. J.
name: Rodriguez-Hernandez, P.
name: Munoz, A.
name: Hebboul, Z.
name: Errandonea, D.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report a characterization of the high-pressure behavior of zinc-iodate, Zn(IO3)2. By the combination of x-ray diffraction, Raman spectroscopy, and first-principles calculations we have found evidence of two subtle isosymmetric structural phase transitions. We present arguments relating these transitions to a non-linear behavior of phonons and changes induced by pressure on the coordination sphere of the iodine atoms. This fact is explained as a consequence of the formation of metavalent bonding at high-pressure which is favored by the lone-electron pairs of iodine. In addition, the pressure dependence of unit-cell parameters, volume, and bond is reported. An equation of state to describe the pressure dependence of the volume is presented, indicating that Zn(IO3)2 is the most compressible iodate among those studied up to now. Finally, phonon frequencies are reported together with their symmetry assignment and pressure dependence.
description: 33 pages, 3 tables, 15 figures
MOESM1 of Shared prenatal impacts among childhood asthma, allergic rhinitis and atopic dermatitis: a population-based study
Creators: name: Lin, Ching-Heng
name: Wang, Jiun-Long
name: Chen, Hsin-Hua
name: Hsu, Jeng-Yuan
name: Chao, Wen-Cheng
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Science Policy

description: Additional file 1: Table S1. Associations between perinatal variables and childhood allergic diseases.
Superconducting gap symmetry in BaFe$_{1.9}$Ni$_{0.1}$As$_{2}$ superconductor
Creators: name: Kuzmicheva, T. E.
name: Kuzmichev, S. A.
name: Sadakov, A. V.
name: Gavrilkin, S. Yu.
name: Tsvetkov, A. Yu.
name: Lu, X.
name: Luo, H.
name: Vasiliev, A. N.
name: Pudalov, V. M.
name: Chen, Xiao-Jia
name: Abdel-Hafiez, Mahmoud
Publisher: name: arXiv
Year: 2018
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report on the Andreev spectroscopy and specific heat of high-quality single crystals BaFe$_{1.9}$Ni$_{0.1}$As$_{2}$. The intrinsic multiple Andreev reflection spectroscopy reveals two anisotropic superconducting gaps $Δ_L \approx 3.2 \textendash 4.5$\,meV, $Δ_S \approx 1.2 \textendash 1.6$\,meV (the ranges correspond to the minimum and maximum value of the coupling energy in the $k_xk_y$-plane). The $25 \textendash 30 \%$ anisotropy shows the absence of nodes in the superconducting gaps. Using a two-band model with s-wave-like gaps $Δ_L \approx 3.2$\,meV and $Δ_S \approx 1.6$\,meV, the temperature dependence of the electronic specific heat can be well described. A linear magnetic field dependence of the low-temperature specific heat offers a further support of s-wave type of the order parameter. We find that a d-wave or single-gap BCS theory under the weak-coupling approach cannot describe our experiments.
description: 12 pages, 5 figures
Characterization of alkaloids in radix Sophora tonkinensis by UPLC-Q-TOF-MS/MS and its application in the comparison of two different habitats
Creators: name: Zong, Xing-Xing
name: Wang, Yu
name: Xiong, Jia-Liang
name: Ping, Yu-Hui
name: Liang, Qiong-Lin
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Plant Biology

description: Sophora tonkinensis is widely used as traditional Chinese medicine for treating the swelling of the gums and tongue and mouth sores due to flame stomach fire. It is mainly origin from Guangxi, Sichuan provinces of China. Alkaloids are considered as the major bioactive components. A method was established for identifying alkaloids in S. tonkinensis root by UPLC-Q-TOF-MS/MS and was applied in characterizing alkaloids in S. tonkinensis root of two different habitats. Consequently, twenty-four alkaloids including six new compounds were identified in S. tonkinensis root. Additionally, the difference of alkaloids in S. tonkinensis from Guozhou, Sichuan province was investigated. In the present study, we firstly characterize total alkaloids in S. tonkinensis root by UPLC-Q-TOF-MS/MS and firstly established the characteristic fragmentation pathway of alkaloids with hydroxy in S. tonkinensis root.
On the Supergravity Gauge theory Correspondence and the Matrix Model
Creators: name: de Alwis, S. P.
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We review the assumptions and the logic underlying the derivation of DLCQ Matrix models. In particular we try to clarify what remains valid at finite $N$, the role of the non-renormalization theorems and higher order terms in the supergravity expansion. The relation to Maldacena's conjecture is also discussed. In particular the compactification of the Matrix model on $T_3$ is compared to the $AdS_5\times S_5$ ${\cal N}=4$ super Yang-Mills duality, and the different role of the branes in the two cases is pointed out.
description: 19 pages, Latex
Spin-incoherent Luttinger liquid of one-dimensional SU($κ$) fermions
Creators: name: Jen, H. H.
name: Yip, S. -K.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We theoretically investigate one-dimensional (1D) SU($κ$) fermions in the regime of spin-incoherent Luttinger liquid. We specifically focus on the Tonks-Girardeau gas limit where its density is sufficiently low that effective repulsions between atoms become infinite. In such case, spin exchange energy of 1D SU($κ$) fermions vanishes and all spin configurations are degenerate, which automatically puts them into spin-incoherent regime. In this limit, we are able to express the single-particle density matrices in terms of those of anyons. This allows us to numerically simulate the number of particles up to $N=32$. We numerically calculate single-particle density matrices in two cases: (1) equal populations for each spin components (balanced) and (2) all $S_z$ manifolds included. In contrast to noninteracting multi-component fermions, the momentum distributions are broadened due to strong interactions. As $κ$ increases, the momentum distributions are less broadened for fixed $N$, while they are more broadened for fixed number of particle per spin component. We then compare numerically calculated high momentum tails with analytical predictions which are proportional to $1/p^4$, in good agreement. Thus, our theoretical study provides a comparison with the experiments of repulsive multicomponent alkaline-earth fermions with a tunable SU($κ$) spin-symmetry in the spin-incoherent regime.
description: 8 pages and 5 figures
An Endangered National Heritage Site -- The Cape Observatory
Creators: name: Glass, Ian
Publisher: name: arXiv
Year: 2024
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The SAAO Cape Town campus was declared a National Heritage Site in December 2018, just short of its 200th anniversary, but is now in a run-down condition. As the former Royal Observatory, it is the oldest scientific institution in South Africa and probably in all Africa. It has a fascinating and well-documented history and surely deserves better. For many years maintenance has been neglected and many of the old telescopes and buildings are in a poor state. They are beginning to show signs of serious decay. Some examples are given.
description: 10 pages 28 figures
Sterile neutrinos and supernova nucleosynthesis
Creators: name: Caldwell, D. O.
name: Fuller, G. M.
name: Qian, Y. -Z.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A light sterile neutrino species has been introduced to explain simultaneously the solar and atmospheric neutrino puzzles and the results of the LSND experiment, while providing for a hot component of dark matter. Employing this scheme of neutrino masses and mixings, we show how matter-enhanced active-sterile neutrino transformation followed by active-active neutrino transformation can solve robustly the neutron deficit problem encountered by models of r-process nucleosynthesis associated with neutrino-heated supernova ejecta.
description: 29 pages, 3 postscript figures, submitted to Phys. Rev. D
Diffusion of an Active Particle Bound to a Generalized Elastic Model: Fractional Langevin Equation
Creators: name: Taloni, Alessandro
Publisher: name: arXiv
Year: 2024
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We investigate the influence of a self-propelling, out-of-equilibrium active particle on generalized elastic systems, including flexible and semiflexible polymers, fluid membranes, and fluctuating interfaces, while accounting for long-ranged hydrodynamic effects. We derive the fractional Langevin equation governing the dynamics of the active particle, as well as that of any other passive particle (or probe) bound to the elastic system. This equation demonstrates analytically how the active particle dynamics is influenced by the interplay of both the non-equilibrium force and of the viscoelastic environment. Our study explores the diffusional behavior emerging for both the active particle and a distant probe.The active particle undergoes three different surprising and counterintuitive regimes identified by the distinct dynamical time-scales: a pseudo-ballistic initial phase, a drastic decrease of the mobility and an asymptotic subdiffusive regime.
Gauge Coupling Unification without Supersymmetry
Creators: name: Schwichtenberg, Jakob
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the prospects to achieve unification of the gauge couplings in models without supersymmetry. We restrict our discussion to $SU(5), SO(10)$ and $E_6$ models that mimic the structure of the Standard Model as much as possible ("conservative models"). One possible reason for the non-unification of the standard model gauge couplings are threshold corrections which are necessary when the masses of the superheavy fields are not exactly degenerate. We calculate the threshold corrections in conservative models with a Grand Desert between the electroweak and the unification scale. We argue that only in conservative $E_6$ models the corrections can be sufficiently large to explain the mismatch and, at the same time, yield a long-enough proton lifetime. A second possible reason for the mismatch are particles at an intermediate scale. We therefore also study systematically the impact of additional light scalars, gauge bosons and fermions on the running of the gauge coupling. We argue that for each of these possibilities there is a viable scenario with just one intermediate scale.
description: 33 pages, 11 figures
Брітченко І.Г. Функціональні можливості програми project expert у розробці проектів будівельних/Колодинський С.Б., Брітченко І.Г., Беліков О.В.//Матеріали ІХ Міжнародної науково-практичної конференції «Управління проектами: проектний підхід в сучасному менеджменті» (м. Одеса, 11-12 жовтня 2018 р.). - Одеса: ОДАБА, 2018. - С. 138-143.
Creators: name: Britchenko, Igor
name: Ігор Брітченко
name: Колодинський Сергій
Publisher: name: figshare
Year: 2018
Subjects: Economics

description: Планування розвитку підприємства вимагає застосування сучасних методик і інструментів, що знижують часові витрати. Ефективним, адекватним розв’язуваним задачам методом є метод імітаційного моделювання, основу якого складає сценарний підхід. Імітаційні моделі дозволяють програвати різні варіанти розвитку підприємства, стану зовнішнього економічного оточення. Вони дають можливість перевірити різні ідеї, гіпотези і припущення щодо розвитку бізнесу, проаналізувати наслідки їх реалізації.
MOESM1 of In vitro and in vivo exploration of the cellobiose and cellodextrin phosphorylases panel in Ruminiclostridium cellulolyticum: implication for cellulose catabolism
Creators: name: Liu, Nian
name: Fosses, Aurélie
name: Kampik, Clara
name: Parsiegla, Goetz
name: Denis, Yann
name: Vita, Nicolas
name: Fierobe, Henri-Pierre
name: Perret, Stéphanie
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. Purified recombinant phosphorylases. Samples of purified recombinant proteins (3 µg) were loaded on gradient 4–15% SDS-PAGE then Coomassie Blue stained. The recombinant cellobiose phosphorylase (CbpA) and CdpA, CdpB and CdpC have theoretical molecular weights of 93.5 kDa, 90.5, 91 and 94 kDa, respectively.
High-redshift radio galaxies and quasars at sub-millimetre wavelengths: assessing their evolutionary status
Creators: name: Hughes, David
name: Dunlop, J. S.
name: Rawlings, Steve
Publisher: name: arXiv
Year: 1997
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present new results of a study of the sub-millimetre continuum emission from a sample of 9 radio galaxies and 4 radio-quiet quasars at redshifts $z = 0.75 - 4.26$. The observations were made at 800$μm$, using the single-element bolometer UKT14 on the James Clerk Maxwell Telescope (JCMT), reaching a typical r.m.s. sensitivity of $σ_{rms} \sim 4$ mJy and represent some of the deepest submillimetre extragalactic measurements made to date. Three detections were achieved, of which two are secure (4C41.17, Dunlop et al. (1994) and H1413$+$117) and one (53W002) is tentative, whilst comparable upper-limits were obtained for 7 of the 10 remaining sources. We use these data as the motivation for a detailed discussion of the conversion from submillimetre and millimetre continuum fluxes to dust/gas masses and star formation rates at high-redshift, and determine these quantities from our own and other data on high-redshift radio-galaxies and quasars. In particular we have investigated the impact of the four main sources of uncertainty in deriving physical quantities from such data, namely i) potential contamination by galactic cirrus, ii) uncertainty in the value of the dust rest-frequency mass-absorption coefficient, iii) difficulty in constraining the dust temperature, and iv) estimation of the appropriate gas:dust ratio in high-redshift objects. Our discussion emphasises how important it will be to quantify and, where possible, minimize such uncertainties (via, for example, appropriate observational strategies) in order to fully capitalize on the ten-fold improvement in sensitivity offered by the imminent arrival of the next generation of bolometer arrays, such as SCUBA on the JCMT.
description: MNRAS in press. 18 pages LaTex including Postscript figures. Uses mn.tex and psfile
Analysis and implementation of the Buck-Boost Modified Series Forward converter applied to photovoltaic systems
Creators: name: del Moral, David Lopez
name: Barrado, Andres
name: Sanz, Marina
name: Lazaro, Antonio
name: Zumel, Pablo
Publisher: name: arXiv
Year: 2024
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The mismatching phenomenon is one of the main issues in photovoltaic (PV) applications. It could reduce the generated power of a string when a PV panel has different performances from the other PV panels connected to the same string. Distributed Maximum Power Point Tracking (DMPPT) architectures are one of the most promising solutions to overcome the drawbacks associated with mismatching phenomena in PV applications. In this kind of architectures, a DC-DC module integrated converter (MIC) manages each PV panel, isolating it from the rest of the PV panels, for harvesting the maximum available power from the Sun. Due to the high number of DCDC converters used in a grid-tied PV installation, the most desired MIC requirements are high efficiency, low cost and the capability of voltage step-up and step-down. This paper proposes the Buck-Boost Modified Forward (BBMSF) converter as a good candidate to be applied in DMPPT architectures. A complete analysis of the BBMSF converter is carried out, including the steady-state analysis as well as the small signal analysis in continuous conduction mode. The main advantages of the BBMSF converter are its step-up and step-down voltage transfer function; a higher simplicity, since it only includes a single controlled switch; the soft switching characteristics in all the diodes and MOSFET, reaching in some cases ZVS and ZCS, and yielding high efficiencies; the use of an autotransformer, with better performances than a typical Forward transformer; and the good dynamic performance, like the Forward converter ones. The theoretical analyses are validated through the experimental results in a 225 W BBMSF prototype designed and built under the requirements of a 100 kW grid-tied PV installation, achieving an efficiency up to 93.6%.
description: This work has been supported by the Ministry of Economy and Competitiveness and FEDER funds through the research project "Storage and Energy Management for Hybrid Electric Vehicles based on Fuel Cell, Battery and Supercapacitors" - ELECTRICAR-AG- (DPI2014-53685-C2-1-R)
Effective Hamiltonian of Topological Nodal Line Semimetal in Single-Component Molecular Conductor [Pd(dddt)$_2$] from First-Principles
Creators: name: Tsumuraya, Takao
name: Kato, Reizo
name: Suzumura, Yoshikazu
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Using first-principles density-functional theory calculations, we obtain the non-coplanar nodal loop for a single-component molecular conductor [Pd(dddt)$_2$] consisting of HOMO and LUMO with different parity. Focusing on two typical Dirac points, we present a model of an effective 2 $\times$ 2 matrix Hamiltonian in terms of two kinds of velocities associated with the nodal line. The base of the model is taken as HOMO and LUMO on each Dirac point, where two band energies degenerate and the off diagonal matrix element vanishes. The present model, which reasonably describes the Dirac cone in accordance with the first-principles calculation, provides a new method of analyzing electronic states of a topological nodal line semimetal.
description: 5 pages, 4 figures
Unified neural field theory of brain dynamics underlying oscillations in Parkinson's disease and generalized epilepsies
Creators: name: Müller, Eli J
name: van Albada, Sacha J
name: Kim, Jong-Won
name: Robinson, Peter A
Publisher: name: arXiv
Year: 2024
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: The mechanisms underlying pathologically synchronized neural oscillations in Parkinson's disease (PD) and generalized epilepsies are jointly explored via a neural field model of the corticothalamic-basal ganglia (CTBG) system. The basal ganglia (BG) are approximated as a single effective population and their roles in modulating oscillatory corticothalamic (CT) dynamics and vice versa are analyzed. Besides normal EEG rhythms, enhanced activity around 4 Hz and 20 Hz exists in the model, consistent with characteristic frequencies in PD. These rhythms result from resonances in loops between the BG and CT populations, analogous to those underlying epileptic oscillations in a previous CT model. Dopamine depletion is argued to weaken the dampening of these resonances in PD, and network connections explain the significant coherence between BG, thalamic, and cortical activity around 4-8 Hz and 20 Hz. Parallels between the afferent and efferent connection sites of the thalamic reticular nucleus (TRN) and BG predict low dopamine to correspond to a reduced likelihood of tonic-clonic (grand mal) seizures, agreeing with experimental findings. Further, the model predicts an increased likelihood of absence (petit mal) seizure resulting from low dopamine levels matching experimental findings. Suppression of absence seizure activity is shown when afferent and efferent BG connections to the CT system are strengthened, consistent with other CTBG modeling studies. The BG are demonstrated to suppress activity of the CTBG system near tonic-clonic seizure states, providing insight into the reported efficacy of current treatments in BG circuits. Sleep states of the TRN are also found to suppress pathological PD activity matching observations. Overall, the findings demonstrate strong parallels between coherent oscillations in generalized epilepsies and PD, and provide insights into possible comorbidities.
Neutron Electric Dipole Moment in the Minimal Supersymmetric Standard Model
Creators: name: Inui, T.
name: Mimura, Y.
name: Sakai, N.
name: Sasaki, T.
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Neutron electric dipole moment (EDM) due to single quark EDM and to the transition EDM is calculated in the minimal supersymmetric standard model. Assuming that the Cabibbo-Kobayashi-Maskawa matrix at the grand unification scale is the only source of CP violation, complex phases are induced in parameters of soft supersymmetry breaking at low energies. Chargino one-loop diagram is found to give the dominant contribution of the order of $10^{-27}\sim 10^{-29}\:e\cdot$cm for quark EDM, assuming the light chargino mass and the universal scalar mass to be $50$ GeV and $100$ GeV, respectively. Therefore the neutron EDM in this class of model is difficult to measure experimentally. Gluino one-loop diagram also contributes due to the flavor changing gluino coupling. The transition EDM is found to give dominant contributions for certain parameter regions.
description: 27 pages, LaTeX file with figures, several misprints in pp. 7, 14, 20 and 24 are corrected
Additional file 1 of Nanoscale Au-ZnO Heterostructure Developed by Atomic Layer Deposition Towards Amperometric H2O2 Detection
Creators: name: Xu, Hongyan
name: Wei, Zihan
name: Verpoort, Francis
name: Hu, Jie
name: Zhuiykov, Serge
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy
subject: Hematology
subject: Plant Biology
subject: FOS: Biological sciences

description: Additional file 1: Figure S1. Ellipsometry data for deposition of thicker ZnO for building reliable optical constants (a), device schematic indicating Au/Cr pads in dark green (separated by 200 μm) and the dicing/alignment in markers in light green (20 μm) (b), microcrograph of the edge of four individual devices, as per the mask design a 40 μm gap is allotted for dicing and each Au/Cr pad is inset from the edge of the 1.0 x 1.0 cm die by 50 μm (c), micrograph of 200 m Au/Cr pad separation of 2 individual devices (d) with 3D AFM image of Au/Cr layer step height (e). Figure S2. Experimental and model generated data for variable angle spectroscopic ellipsometric measurements of ALD developed ZnO with initial thickness of (a) 0.9 nm and (b) 1.3 nm.
Cosmological Gravitino Problem in Gauge-Mediated Supersymmetry Breaking Models
Creators: name: Asaka, T.
name: Hamaguchi, K.
name: Suzuki, Koshiro
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the cosmological gravitino problem in gauge-mediated supersymmetry breaking models, where the gravitino becomes in general the lightest supersymmetric particle (LSP). In order to avoid the overclosure of the stable gravitino, the reheating temperature of inflation $T_R$ should be low enough. Furthermore, if the gravitino mass is larger than about 100 MeV, the decay of the next-to-LSP (NLSP) into the gravitino may modify disastrously the abundances of the light elements predicted by the big-bang nucleosynthesis (BBN). We consider the case in which the lighter stau is the NLSP and derive cosmological constraints from the BBN on the stau NLSP decay. We obtain a lower bound on the mass of stau $m_{\staul}$, which is more stringent than the current experimental limit $m_{\staul} > 90$ GeV for the gravitino mass region $m_{3/2} \gsim 5$ GeV. This lower bound, together with the overclosure constraint on the stable gravitino, gives an upper bound on $T_{R}$. We find that the reheating temperature can be as high as $10^9$--$10^{10}$ GeV for $m_{3/2} \simeq 5$--100 GeV.
description: 15 pages, 3 eps figures; reviced version to be published in Physics Letters B
Revisiting the pressure-induced phase transitions of Methylammonium Lead Bromide Perovskite
Creators: name: Liang, Akun
name: Gonzalez-Platas, Javier
name: Turnbull, Robin
name: Popescu, Catalin
name: Fernandez-Guillen, Ismael
name: Abargues, Rafael
name: Boix, Pablo P.
name: Shi, Lan-Ting
name: Errandonea, Daniel
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The high-pressure crystal structure evolution of CH3NH3PbBr3 (MAPbBr3) perovskite has been investigated by single-crystal X-ray diffraction and synchrotron-based powder X-ray diffraction. Single-crystal X-ray diffraction reveals that the crystal structure of MAPbBr3 undergoes two phase transitions following the space-group sequence: Pm-3m-to-Im3-to-Pmn21. The transitions take place at around 0.8 and 1.8 GPa, respectively. This result is contradicting the previously reported phase transition sequence: Pm-3m-to-Im3-to-Pnma. In this work the crystal structures of each of the three phases are determined from single-crystal X-ray diffraction analysis which is later supported by Rietveld refinement of powder X-ray diffraction patterns. The pressure dependence of the crystal lattice parameters and unit-cell volumes are determined from the two aforementioned techniques, as well as the bulk moduli for each phase. The bandgap behaviour of MAPbBr3 has been studied up to around 4 GPa, by the means of single-crystal optical-absorption experiments. The evolution of the bandgap has been well explained using the pressure dependence of the Pb-Br bond distance and Pb-Br-Pb angles as determined from single-crystal X-ray diffraction experiments.
description: 20 pages, 5 pages
Can multi-TeV (top and other) squarks be natural in gauge mediation?
Creators: name: Agashe, Kaustubh
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate whether multi-TeV (1-3 TeV) squarks can be natural in models of gauge mediated SUSY breaking. The idea is that for some boundary condition of the scalar (Higgs and stop) masses, the Higgs (mass)$^2$, evaluated at the renormalization scale $\sim O(100)$ GeV, is not very sensitive to (boundary values of) the scalar masses (this has been called ``focussing'' in recent literature). Then, the stop masses can be multi-TeV without leading to fine-tuning in electroweak symmetry breaking. {\em Minimal} gauge mediation does {\em not} lead to this focussing (for all values of $\tan β$ and the messenger scale): the (boundary value of) the Higgs mass is too small compared to the stop masses. Also, in minimal gauge mediation, the gaugino masses are of the same order as the scalar masses so that multi-TeV scalars implies multi-TeV gauginos (especially gluino) leading to fine-tuning. We discuss ideas to {\em increase} the Higgs mass relative to the stop masses (so that focussing can be achieved) and also to {\em suppress} gaugino masses relative to scalar masses (or to modify the gaugino mass relations) in {\em non-minimal} models of gauge mediation -- then multi-TeV (top and other) squarks can be natural. Specific models of gauge mediation which incorporate these ideas and thus have squarks (and in some cases, the gluino) heavier than a TeV without resulting in fine-tuning are also studied and their collider signals are contrasted with those of other models which have multi-TeV squarks.
description: LaTeX, 29 pages, 9 eps figures. Replacing an earlier version. In version 3, some references and a minor comment have been added and typos have been corrected
"Compassion in Mourning: The Crucial Role of Nursing in Grief Management"
Creators: name: Prof. Michael Hudson
Publisher: name: Brio Innovative Journal of Novel Research (BIJNR)
Year: 2025

description: Abstract: Nurses play a critical role in managing grief by providing emotional support, patient education, bereavement counseling, and ensuring continuity of care for grieving individuals and families. The nursing profession demands a compassionate and evidence-based approach to grief management, particularly in palliative care, end-of-life care, and critical care settings. This article explores the theoretical frameworks of grief, the role of nurses in managing different types of grief, intervention strategies, and self-care for nurses coping with grief-related stress. The paper also highlights the importance of integrating grief management into nursing education and clinical practice to improve patient and family outcomes.
Intensity dependence of Rydberg states
Creators: name: Ortmann, L.
name: Hofmann, C.
name: Landsman, A. S.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We investigate numerically and analytically the intensity dependence of the fraction of electrons that end up in a Rydberg state after strong-field ionization with linearly polarized light. We find that including the intensity dependent distribution of ionization times and non-adiabatic effects leads to a better understanding of experimental results. Furthermore, we observe using Classical Trajectory Monte Carlo simulations that the intensity dependence of the Rydberg yield changes with wavelength and that the previously observed power-law dependence breaks down at longer wavelengths. Our work suggests that Rydberg yield measurements can be used as an independent test for non-adiabaticity in strong field ionization.
Accurate Determination of the Band-Gap Energy of the Rare-Earth Niobate Series
Creators: name: Garg, Alka B.
name: Vie, David
name: Rodriguez-Hernandez, Placida
name: Munoz, Alfonso
name: Segura, Alfredo
name: Errandonea, Daniel
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this work, we report diffuse reflectivity measurements in InNbO4, ScNbO4, YNbO4, and eight different rare-earth niobates. From a comparison with the established values of the band gap of InNbO4 and ScNbO4, we have found that the broadly used Tauc plot analysis leads to erroneous estimates of the band-gap energy of niobates. In contrast, accurate results are obtained considering excitonic contributions using the Elliot-Toyozawa model. We have found that YNbO4 and the rare-earth niobates are wide band-gap materials. The band-gap energy is 3.25 eV for CeNbO4, 4.35 eV for LaNbO4, 4.5 eV for YNbO4, and 4.73 - 4.93 eV for SmNbO4, EuNbO4, GdNbO4, DyNbO4, HoNbO4, and YbNbO4. An explanation for the obtained results will be presented. The fact that the band-gap energy is nearly not affected by the rare-earth substitution from SmNbO4 to YbNbO4 and the circumstance that these are the compounds with the largest band gap are a consequence of the fact that the band structure near the Fermi level originates mainly from Nb 4d and O 2p orbitals. We hypothesize that YNbO4, CeVO4, and LaNbO4 have smaller band gaps because of the contribution from rare-earth atom 4d or 5f states to the states near the Fermi level.
description: 18 pages, 1 Table, 4 Figures
Spatially Resolving the Condensing Effect of Cholesterol in Lipid Bilayers
Creators: name: Leeb, Felix
name: Maibaum, Lutz
Publisher: name: arXiv
Year: 2018
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We study the effect of cholesterol on the structure of dipalmitoylphosphatidylcholine (DPPC) phospholipid bilayers. Using extensive molecular dynamics computer simulations at atomistic resolution we observe and quantify several structural changes upon increasing cholesterol content that are collectively known as the condensing effect: a thickening of the bilayer, an increase in lipid tail order, and a decrease in lateral area. We also observe a change in leaflet interdigitation and a lack thereof in the distributions of DPPC head group orientations. These results, obtained over a wide range of cholesterol mole fractions, are then used to calibrate the analysis of phospholipid properties in bilayers containing a single cholesterol molecule per leaflet, which we perform in a spatially resolved way. We find that a single cholesterol molecule affects phospholipids in its first and second solvation shells, which puts the range of this interaction to be on the order of one to two nanometers. We also observe a tendency of phospholipids to orient their polar head groups toward the cholesterol, which provides additional support for the umbrella model of bilayer organization.
Nonperturbative nonlinear effects in the dispersion relations for TE and TM plasmons on two-dimensional materials
Creators: name: Andreeva, Vera
name: Luskin, Mitchell
name: Margetis, Dionisios
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We analytically obtain the dispersion relations for transverse-electric (TE) and transverse-magnetic (TM) surface plasmon-polaritons in a nonlinear two-dimensional (2D) conducting material lying between two Kerr-type dielectric media. To this end, we use Maxwell's equations within the quasi-electrostatic, weakly dissipative regime. We show that the wavelength and propagation distance of surface plasmons decrease due to the nonlinearity of the surrounding dielectric. In contrast, the effect of the nonlinearity of the 2D material depends on the signs of the real and imaginary parts of the third-order conductivity. Notably, the dispersion relations obtained by naively replacing the permittivity of the dielectric medium by its nonlinear counterpart in the respective dispersion relations of the linear regime are not accurate. We apply our analysis to the case of doped graphene and make predictions for the TM-polarized surface plasmon wavelength and propagation distance.
description: 18 pages, 8 figures
Low- and high-mass components of the photon distribution functions
Creators: name: Schuler, Gerhard A.
name: Sjöstrand, Torbjörn
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The structure of the general solution of the inhomogeneous evolution equations allows the separation of a photon structure function into perturbative (``anomalous") and non-perturbative contributions. The former part is fully calculable, and can be identified with the high-mass contributions to the dispersion integral in the photon mass. Properly normalized ``state" distributions can be defined, where the $γ\to\qqbar$ splitting probability is factored out. These state distributions are shown to be useful in the description of the hadronic event properties, and necessary for a proper eikonalization of jet cross sections. Convenient parametrizations are provided both for the state and for the full anomalous parton distributions. The non-perturbative parts of the parton distribution functions of the photon are identified with the low-mass contributions to the dispersion integral. Their normalizations, as well as the value of the scale $Q_0$ at which the perturbative parts vanish, are fixed by approximating the low-mass contributions by a discrete, finite sum of vector mesons. The shapes of these hadronic distributions are fitted to the available data on $F_2^γ(x,Q^2)$. Parametrizations are provided for $Q_0=0.6\,$GeV and $Q_0=2\,$GeV, both in the DIS and the $\overline{\mathrm{MS}}$ factorization schemes. The full parametrizations are extended towards virtual photons. Finally, the often-used ``FKP-plus-TPC/$2γ$" solution for $F_2^γ(x,Q^2)$ is commented upon.
description: 33 pages, Latex, 6 Z-compressed and uuencoded figures