cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Artificial Intelligence in Glioma Imaging: Challenges and Advances
Creators: name: Jin, Weina
name: Fatehi, Mostafa
name: Abhishek, Kumar
name: Mallya, Mayur
name: Toyota, Brian
name: Hamarneh, Ghassan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Primary brain tumors including gliomas continue to pose significant management challenges to clinicians. While the presentation, the pathology, and the clinical course of these lesions are variable, the initial investigations are usually similar. Patients who are suspected to have a brain tumor will be assessed with computed tomography (CT) and magnetic resonance imaging (MRI). The imaging findings are used by neurosurgeons to determine the feasibility of surgical resection and plan such an undertaking. Imaging studies are also an indispensable tool in tracking tumor progression or its response to treatment. As these imaging studies are non-invasive, relatively cheap and accessible to patients, there have been many efforts over the past two decades to increase the amount of clinically-relevant information that can be extracted from brain imaging. Most recently, artificial intelligence (AI) techniques have been employed to segment and characterize brain tumors, as well as to detect progression or treatment-response. However, the clinical utility of such endeavours remains limited due to challenges in data collection and annotation, model training, and the reliability of AI-generated information. We provide a review of recent advances in addressing the above challenges. First, to overcome the challenge of data paucity, different image imputation and synthesis techniques along with annotation collection efforts are summarized. Next, various training strategies are presented to meet multiple desiderata, such as model performance, generalization ability, data privacy protection, and learning with sparse annotations. Finally, standardized performance evaluation and model interpretability methods have been reviewed. We believe that these technical approaches will facilitate the development of a fully-functional AI tool in the clinical care of patients with gliomas.
description: 31 pages, 6 figures. Accepted for publication in the Journal of Neural Engineering
Time- and momentum-resolved phonon population dynamics with ultrafast electron diffuse scattering
Creators: name: de Cotret, Laurent P. René
name: Pöhls, Jan-Hendrik
name: Stern, Mark J.
name: Otto, Martin R.
name: Sutton, Mark
name: Siwick, Bradley J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Interactions between the lattice and charge carriers can drive the formation of phases and ordering phenomena that give rise to conventional superconductivity, insulator-to-metal transitions, and charge-density waves. These couplings also play a determining role in properties that include electric and thermal conductivity. Ultrafast electron diffuse scattering (UEDS) has recently become a viable laboratory-scale tool to track energy flow into and within the lattice system across the entire Brillouin zone, and deconvolves interactions in the time domain. Here, we present a detailed quantitative framework for the interpretation of UEDS signals, ultimately extracting the phonon mode occupancies across the entire Brillouin zone. These transient populations are then used to extract momentum- and mode-dependent electron-phonon and phonon-phonon coupling constants. Results of this analysis are presented for graphite, which provides complete information on the phonon-branch occupations and a determination of the $A_1'$ phonon mode-projected electron-phonon coupling strength $\langle g_{e,A_1'}^2 \rangle = 0.035 \pm 0.001$ eV$^2$ that is in agreement with other measurement techniques and simulations.
description: 14 pages, 7 figures. Includes appendices
$\mathcal{N}$-Extended $D=4$ Supergravity, Unconventional SUSY and Graphene
Creators: name: Andrianopoli, L.
name: Cerchiai, B. L.
name: D'Auria, R.
name: Gallerati, A.
name: Noris, R.
name: Trigiante, M.
name: Zanelli, J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We derive a $2+1$ dimensional model with unconventional supersymmetry at the boundary of an ${\rm AdS}_4$ $\mathcal{N}$-extended supergravity, generalizing previous results. The (unconventional) extended supersymmetry of the boundary model is instrumental in describing, within a top-down approach, the electronic properties of graphene-like 2D materials at the two Dirac points, ${\bf K}$ and ${\bf K}'$. The two valleys correspond to the two independent sectors of the ${\rm OSp}(p|2)\times {\rm OSp}(q|2)$ boundary model in the $p=q$ case, which are related by a parity transformation. The Semenoff and Haldane-type masses entering the corresponding Dirac equations are identified with the torsion parameters of the substrate in the model.
description: 27 pages, 1 figure
Transverse momentum fluctuations due to temperature variation in high-energy nuclear collisions
Creators: name: Korus, R.
name: Mrowczynski, St.
name: Rybczynski, M.
name: Wlodarczyk, Z.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The event-by-event p_T-fluctuations due to the temperature variation are considered. The so-called Phi-measure is computed and shown to be a linear function of the temperature variance. The fluctuations of temperature naturally explain the data on Phi(p_T) in proton-proton and central Pb-Pb collisions but independent measurements of the temperature fluctuations are needed to confirm the explanation. Feasibility of such an event-by-event measurement is discussed.
description: 10 pages, 6 figures, minor improvements, to appear in Phys. Rev. C
Hepatoprotective glycosides from the rhizomes of Imperata cylindrical
Creators: name: Ma, Jie
name: Sun, Hua
name: Liu, Hui
name: Shi, Gao-Na
name: Zang, Ying-Da
name: Li, Chuang-Jun
name: Yang, Jing-Zhi
name: Chen, Fang-You
name: Huang, Ji-Wu
name: Zhang, Dan
name: Zhang, Dong-Ming
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: Physical Sciences not elsewhere classified
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Physiology
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified

description: Three new C-methylated phenylpropanoid glycosides (1, 2), a new 8–4′-oxyneolignan (3), together with two known analogs (4, 5), were isolated from the rhizomes of Imperata cylindrical Beauv. var. major (Nees) C. E. Hubb. Their structures were determined by spectroscopic and chemical methods. Compounds 1, 2, and 5 (10 μM) exhibited pronounced hepatoprotective activity against N-acetyl-p-aminophenol (APAP)-induced HepG2 cell damage in vitro assays. Furthermore, their antioxidant activities against Fe2+-cysteine-induced rat liver microsomal lipid peroxidation and the effects on the secretion of TNF-α in murine peritoneal macrophages (RAW264.7) induced by lipopolysaccharides were evaluated.
Kaon Matrix Elements and CP-violation from Quenched Lattice QCD: (I) the 3-flavor case
Creators: name: Blum, T.
name: Chen, P.
name: Christ, N.
name: Cristian, C.
name: Dawson, C.
name: Fleming, G.
name: Mawhinney, R.
name: Ohta, S.
name: Siegert, G.
name: Soni, A.
name: Vranas, P.
name: Wingate, M.
name: Wu, L.
name: Zhestkov, Y.
name: Collaboration, RBC
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We report the results of a calculation of the K --> pi pi matrix elements relevant for the $\DIhalf$ rule and $\epe$ in quenched lattice QCD using domain wall fermions at a fixed lattice spacing $a^{-1} \sim 2$ GeV. Working in the three-quark effective theory, where only the u, d and s quarks enter and which is known perturbatively to next-to-leading order, we calculate the lattice K --> pi and K --> |0> matrix elements of dimension six, four-fermion operators. Through lowest order chiral perturbation theory these yield K --> pi pi matrix elements, which we then normalize to continuum values through a non-perturbative renormalization technique. For the ratio of isospin amplitudes |A_0|/|A_2| we find a value of $25.3 \pm 1.8$ (statistical error only) compared to the experimental value of 22.2, with individual isospin amplitudes 10-20% below the experimental values. For $\epe$, using known central values for standard model parameters, we calculate $(-4.0 \pm 2.3) \times 10^{-4}$ (statistical error only) compared to the current experimental average of $(17.2 \pm 1.8) \times 10^{-4}$. Because we find a large cancellation between the I = 0 and I = 2 contributions to $\epe$, the result may be very sensitive to the approximations employed. Among these are the use of: quenched QCD, lowest order chiral perturbation theory and continuum perturbation theory below 1.3 GeV. We have also calculated the kaon B parameter, B_K and find $B_{K,\bar{MS}}(2 {\rm GeV}) = 0.532(11)$. Although currently unable to give a reliable systematic error, we have control over statistical errors and more simulations will yield information about the effects of the approximations on this first-principles determination of these important quantities.
description: 158 pages, 51 tables, 41 figures. No numerical data or results changed in this revision, except for an improved analysis of B_K. Many improvements and modifications to the text and explanations. Table XLVII changed to include improved values for B_K. Submitted to Physical Review D
ПРОЦЕССЫ ПРИ ИОНООБМЕННОЙ ОБРАБОТКЕ ПОВЕРХНОСТИ БАЗАЛЬТОВОГО СТЕКЛОВОЛОКНА
Creators: name: Кнотько А.В.
name: Гаршев А.В.
name: Меледин А.А.
name: Судьин В.В.
name: Путляев В.И.
Publisher: name: Строительные материалы
Year: 2011
Subjects: БАЗАЛЬТОВОЕ ВОЛОКНО
ИОНООБМЕННАЯ ОБРАБОТКА
КОРРОЗИОННАЯ СТОЙКОСТЬ

description: Приведены результаты исследования ионообменной обработки поверхности базальтового волокна. Показано, что ионообменная обработка базальтового стекловолокна с целью обогащения его приповерхностной области наиболее подвижными ионами малоэффективна для повышения коррозионной стойкости волокна по отношению к высокоосновным растворам, например жидкой фазы твердеющего цемента. Однако воздействие только на приповерхностный слой весьма малой толщины при ионообменной обработке может применяться совместно с окислительной термообработкой для создания оптимального концентрационного профиля подвижных ионов около поверхности волокна.
A possible origin of superconducting currents in cosmic strings
Creators: name: Chavez, Helder
name: Masperi, Luis
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The scattering and capture of right-handed neutrinos by an Abelian cosmic string in the SO(10) grand unification model are considered. The scattering cross-section of neutrinos per unit length due to the interaction with the gauge and Higgs fields of the string is much larger in its scaling regime than in the friction one because of the larger infrared cutoff of the former.The probability of capture in a zero mode of the string accompanied by the emission of a gauge or Higgs boson shows a resonant peak for neutrino momentum of the order of its mass. Considering the decrease of number of strings per unit comoving volume in the scaling epoch the cosmological consequences of the superconducting strings formed in this regime will be much smaller than those which could be produced already in the friction one.
description: 14 pages Latex, 4 figues/eps
Rotational Graviton Modes in the Brane World
Creators: name: Vazquez-Poritz, J. F.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: For a brane world embedded in various ten or eleven-dimensional geometries, we calculate the corrections to the four-dimensional gravitational potential due to graviton modes propagating in the extra dimensions, including those rotating around compact directions. Due to additional "warp" factors, these rotation modes may have as significant an effect as the s-wave modes which propagate in the large or infinite extra dimension.
description: 9 pages, LaTeX
Integrable model of a $p$-wave bosonic superfluid
Creators: name: Lerma-Hernandez, Sergio
name: Dukelsky, Jorge
name: Ortiz, Gerardo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present an exactly-solvable $p$-wave pairing model for two bosonic species. The model is solvable in any spatial dimension and shares some commonalities with the $p + ip$ Richardson-Gaudin fermionic model, such as a third order quantum phase transition. However, contrary to the fermionic case, in the bosonic model the transition separates a gapless fragmented singlet pair condensate from a pair Bose superfluid, and the exact eigenstate at the quantum critical point is a pair condensate analogous to the fermionic Moore-Read state.
description: Phys. Rev. Res. (RC)
New supersymmetric source of neutrino masses and mixings
Creators: name: Casas, J. A.
name: Espinosa, J. R.
name: Navarro, I.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Conventionally, neutrino masses in a supersymmetric theory arise from non-renormalizable lepton-number (L)-violating operators in the superpotential. The alternative possibility of having such operators in the Kahler potential as the dominant source of neutrino masses has very interesting implications and differences with respect to the standard scenario: first, the scale of L-violation can be lowered dramatically and neutrino masses have a different tan beta-dependence; second, the renormalization of these operators has remarkable properties: in many cases it improves drastically the stability of neutrino textures against radiative corrections, while in others it makes possible to generate radiatively large mixing angles in a natural way. In particular, the mass splitting and mixing angle of solar neutrinos (LAMSW solution) can be explained as a purely radiative effect.
description: 4 pages, revtex
Parton Energy Loss with Detailed Balance
Creators: name: Wang, Enke
name: Wang, Xin-Nian
Publisher: name: arXiv
Year: 2001
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Stimulated gluon emission and thermal absorption in addition to induced radiation are considered for an energetic parton propagating inside a quark- gluon plasma. In the presence of thermal gluons, stimulated emission reduces while absorption increases the parton's energy. The net effect is a reduction of the parton energy loss. Though decreasing asymptotically as $T/E$ with the parton energy, the relative reduction is found to be important for intermediate energies. The modified energy dependence of the energy loss will affect the shape of suppression of moderately high $p_T$ hadrons due to jet quenching in high-energy heavy-ion collisions.
description: 4 pages in RevTex with 1 postscript figure. Some typos are corrected and new comments are added
Flat directions in susy guts
Creators: name: Bajc, Borut
name: Gogoladze, Ilia
name: Guevara, Ramon
name: Senjanovic, Goran
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It is shown that a realistic SUSY SU(6) GUT can dynamically generate the GUT scale and solve at the same time the doublet-triplet splitting problem. The cosmological implications of such a model are briefly reviewed.
description: 3 pages, Latex, uses sprocl.sty; talk given by B.B. at SUSY'01, June 11-17, Dubna, Russia; to appear in the Proceedings
Experience with Classification of Milk in Federal Order Markets
Creators: name: Purcell, Margaret R.
name: Herrmann, Louis F.
name: Purcell, Margaret R.
name: Herrmann, Louis F.
Publisher: name: Unknown
Year: 1958
Subjects: subject: Agricultural and Food Policy
subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business

description: Excerpts from the report Preface: The system of paying farmers who supply fluid milk markets is dependent upon the classification of their milk. Consequently, dairy farmers, along with milk distributors, consumers, and governmental agencies, have a direct and continuing interest in the classification plans adopted by the markets. This study reviews the experience with classified pricing in the 68 fluid milk markets which were under Federal regulation at the end of 1957. The direction and extent of changes that occurred in solving the classification problems in major fluid milk markets indicate factors to be considered in the further evolution of the system and in the classification of new products.
Seguidor solar con disco concentrador: estudio de volumen focal y tipo de movimiento para una mayor eficiencia
Creators: name: Monferrán, Daniel
Publisher: name: figshare
Year: 2019
Subjects: subject: 91302 Automation and Control Engineering
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 90601 Circuits and Systems
subject: 90602 Control Systems, Robotics and Automation
subject: 91305 Energy Generation, Conversion and Storage Engineering
subject: FOS: Mechanical engineering
subject: 90799 Environmental Engineering not elsewhere classified
subject: FOS: Environmental engineering
subject: Mechanical Engineering
subject: 90608 Renewable Power and Energy Systems Engineering (excl. Solar Cells)

description: Se presenta el diseño de un seguidor solar con disco concentrador movilizado por un motor de corriente contínua que se caracteriza por el bajo consumo de energía eléctrica y el reducido costo de su implementación.
Un seguidor solar con disco concentrador envía energía concentrada, proyectando el haz de luz sobre una superficie que actúa como intercambiador de calor de un dispositivo receptor.
La reducción de la energía consumida por el motor de corriente continua depende: de la posición del intercambiador en la zona del volumen focal del disco concentrador, de las características del intercambiador y del tipo de movimiento definido por el algoritmo de control.
Conocer la forma y dimensiones del volumen focal orientado en el diseño y ubicación del intercambiador de calor con el objetivo de minimizar las pérdidas de energía y obtener la mayor eficiencia en esta etapa de conversión. Para obtener los datos de la forma, dimensiones y distribución de los niveles de intensidad del volumen focal se realizaron las pruebas de ensayos sobre un vidrio esmerilado que, ubicado en las proximidades del foco teórico recibe el haz de luz proveniente del disco.
Associativity Anomaly in String Field Theory
Creators: name: Bars, Itzhak
name: Matsuo, Yutaka
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We give a detailed study of the associativity anomaly in open string field theory from the viewpoint of the split string and Moyal formalisms. The origin of the anomaly is reduced to the properties of the special infinite size matrices which relate the conventional open string to the split string variables, and is intimately related to midpoint issues. We discuss two steps to cope with the anomaly. We identify the field subspace that causes the anomaly which is related to the existence of closed string configurations, and indicate a decomposition of open/closed string sectors. We then propose a consistent cut off method with a finite number of string modes that guarantees associativity at every step of any computation.
description: 24 pages, LaTeX
Stability of Leapfrogging Vortex Pairs: A Semi-analytic Approach
Creators: name: Behring, Brandon M.
name: Goodman, Roy H.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Dynamical Systems (math.DS)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We investigate the stability of a one-parameter family of periodic solutions of the four-vortex problem known as `leapfrogging' orbits. These solutions, which consist of two pairs of identical yet oppositely-signed vortices, were known to W.\ Gröbli (1877) and A.\ E.\ H.\ Love (1883), and can be parameterized by a dimensionless parameter $α$ related to the geometry of the initial configuration. Simulations by Acheson (2000) and numerical Floquet analysis by Tophøj and Aref (2012) both indicate, to many digits, that the bifurcation occurs when $1/α=ϕ^2$, where $ϕ$ is the golden ratio. This study aims to explain the origin of this remarkable value. Using a trick from the gravitational two-body problem, we change variables to render the Floquet problem in an explicit form that is more amenable to analysis. We then implement G. W. Hill's method of harmonic balance to high order using computer algebra to construct a rapidly-converging sequence of asymptotic approximations to the bifurcation value, confirming the value found earlier.
A modular $A_4$ symmetry realization of two-zero textures of the Majorana neutrino mass matrix
Creators: name: Zhang, Di
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show how to realize two-zero textures of the Majorana neutrino mass matrix $M_ν$ based on modular $A_4$ invariant models without flavons. In these models, all matter fields are assigned to three inequivalent singlets, ${\bf 1}$, ${\bf 1^\prime}$ and ${\bf 1^{\prime\prime}}$, of the finite modular group $Γ_3 \simeq A_4$. Considering tensor products of the $A_4$ group, it is easy to make the charged lepton mass matrix $M_\ell$ diagonal. Since not all modular forms of a specific weight and level 3 can be arranged into three inequivalent singlets of $A_4$ simultaneously, we can always make some entries in $M_ν$ vanish by properly assigning the representations and modular weights for the matter fields. We consider two cases where neutrino masses originate from the Weinberg operator and the type-I seesaw mechanism, respectively. For the former case, all seven viable two-zero textures of $M_ν$ (${\bf A_{1,2}}$, ${\bf B_{1,2,3,4}}$ and ${\bf C}$) can be realized successfully. For the latter case, only five of them (namely ${\bf A_{1,2}}$, ${\bf B_{3,4}}$ and ${\bf C}$) can be achieved due to the intrinsic structure of the right-handed neutrino mass matrix $M_{\rm R}$ in our assumption for simplicity.
description: 23 pages, 6 tables, references added and version accepted for publication in NPB
TALABALARNI PEDAGOGIK KOMPETENSIYAGA OID BILIMLAR BILAN METODIK QUROLLANTIRISH
Creators: name: Axmadjonovich, Komiljon M.
Publisher: name: Zenodo
Year: 2025

description: Ushbu maqola pedagogik OTMning bakalavr ta’lim yo‘nalishida tahsil olayotgan talabalar uchun mo‘ljallangan. Talabalarni kreаtiv pedаgogik  kompetentsiyaga oid bilimlаr bilаn metodik qurollаntirishda taʼlimning innovatsion tashkiliy-didaktik shakllarini qoʻllashning pedagogik shart-sharoitlari va sifat koʻrsatgichlari, axborot-didaktik taʼminoti tavsiflangan. Talabalarning kreativ kompetensiyalarini Forsayt texnologiyalar asosida takomillashtirish metodikasi, innovatsion yondashuv asosida yoritilgan.
Entangled quantum tunneling of two-component Bose-Einstein condensates
Creators: name: Ng, H. T.
name: Law, C. K.
name: Leung, P. T.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We examine the quantum tunneling process in Bose condensates of two interacting species trapped in a double well configuration. We discover the condition under which particles of different species can tunnel as pairs through the potential barrier between two wells in opposition directions. This novel form of tunneling is due to the interspecies interaction that eliminates the self- trapping effect. The correlated motion of tunneling atoms leads to the generation of quantum entanglement between two macroscopically coherent systems.
description: 4 pages, 3 figures
Spontaneous scalarization of charged black holes in the Scalar-Vector-Tensor theory
Creators: name: Ikeda, Taishi
name: Nakamura, Tomohiro
name: Minamitsuji, Masato
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present spontaneous scalarization of charged black holes (BHs) which is induced by the coupling of the scalar field to the electromagnetic field strength and the double-dual Riemann tensor $L^{μναβ}F_{μν}F_{αβ}$ in a scalar-vector-tensor theory. In our model, the scalarization can be realized under the curved background with a non-trivial electromagnetic field, such as Reissner-Nordstr$\ddot{\rm o}$m Black Holes (RN BHs). Firstly, we investigate the stability of the constant scalar field around RN BHs in the model, and show that the scalar field can suffer a tachyonic instability. Secondly, the bound state solution of the test scalar field around a RN BH and its stability are discussed. Finally, we construct scalarized BH solutions, and investigate their stability.
description: 15 pages, 14 figures, typos corrected, reference added, published version
Landau-Khalatnikov-Fradkin Transformations and the Fermion Propagator in Quantum Electrodynamics
Creators: name: Bashir, A.
name: Raya, A.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the gauge covariance of the massive fermion propagator in three as well as four dimensional Quantum Electrodynamics (QED). Starting from its value at the lowest order in perturbation theory, we evaluate a non-perturbative expression for it by means of its Landau-Khalatnikov-Fradkin (LKF) transformation. We compare the perturbative expansion of our findings with the known one loop results and observe perfect agreement upto a gauge parameter independent term, a difference permitted by the structure of the LKF transformations.
description: 9 pages, no figures, uses revtex
Invariant Measures for Nonlinear Conservation Laws Driven by Stochastic Forcing
Creators: name: Chen, Gui-Qiang G.
name: Pang, Peter H. C.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Analysis of PDEs (math.AP)
subject: Probability (math.PR)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: Primary: 35B40, 35K65, 37-02, 37A50, 37C40, 60H15. Secondary: 35Q35, 58J70, 60G51, 60J65

description: Some recent developments in the analysis of long-time behaviors of stochastic solutions of nonlinear conservation laws driven by stochastic forcing are surveyed. The existence and uniqueness of invariant measures are established for anisotropic degenerate parabolic-hyperbolic conservation laws of second-order driven by white noises. Some further developments, problems, and challenges in this direction are also discussed.
description: 39 pages
PV, Wind powered Electric Vehicle Charging Station with Fuzzy and Perturb & Observe MPPT Control
Creators: name: Journal of Next Generation Technology
Publisher: name: Zenodo
Year: 2024
Subjects: Electric Vehicle Charging Station (EVCS), Photovoltaic , Wind Energy, Fuzzy Logic Controller MPPT.

description: Electric vehicle charging stations that include renewable energy sources have drawn a lot ofinterest as a sustainable way to cut greenhouse gas emissions and fulfill the world's expanding energyneeds. This paper presents the design and analysis of a hybrid renewable energy-based EV chargingstation powered by PV and wind energy systems. The proposed system employs a dual MPPTstrategy: Fuzzy Logic Controller (FLC) for PV units and the Perturb and Observe (P&O) techniquefor wind turbines, ensuring optimal power extraction under varying environmental conditions. Adetailed performance evaluation highlights the reliability, efficiency, and adaptability of the system.Simulation results demonstrate the system’s ability to handle partial shading conditions, wind speedvariations, and dynamic EV charging demands. The combination of FLC and P&O significantlyenhances tracking accuracy and response time compared to traditional methods. This studyunderscores the feasibility of renewable energy-powered EV charging stations as a robust, ecofriendly alternative to grid-dependent systems.
eta and eta' in a coupled Schwinger-Dyson and Bethe-Salpeter approach. II. The gamma^* gamma transition form factors
Creators: name: Kekez, Dalibor
name: Klabucar, Dubravko
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The applications of the consistently coupled Schwinger-Dyson and Bethe-Salpeter approach to the eta-eta' complex are extended to the two-photon transition form factors of eta and eta' for spacelike transferred momenta. We compare our predictions with experiment and some other theoretical approaches.
description: Some typos, syntax and the title corrected in accord with the published version
A note on Faddeev--Popov action for doubled-yet-gauged particle and graded Poisson geometry
Creators: name: Basile, Thomas
name: Joung, Euihun
name: Park, Jeong-Hyuck
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The section condition of Double Field Theory has been argued to mean that doubled coordinates are gauged: a gauge orbit represents a single physical point. In this note, we consider a doubled and at the same time gauged particle action, and show that its BRST formulation including Faddeev--Popov ghosts matches with the graded Poisson geometry that has been recently used to describe the symmetries of Double Field Theory. Besides, by requiring target spacetime diffeomorphisms at the quantum level, we derive quantum corrections to the classical action involving dilaton, which might be comparable with the Fradkin--Tseytlin term on string worldsheet.
description: 22 pages = 1 + 14 + references; v2) minor changes, final version
Memorandum_UND_Brian Blagg.docx
Creators: name: Neill, Chase
Publisher: name: figshare
Year: 2019
Subjects: subject: 220104 Human Rights and Justice Issues
subject: FOS: Philosophy, ethics and religion
subject: 180102 Access to Justice
subject: FOS: Law
subject: 220204 History and Philosophy of Law and Justice
subject: 170111 Psychology of Religion
subject: FOS: Psychology
subject: 220405 Religion and Society
subject: 220315 Philosophy of Religion
subject: 220499 Religion and Religious Studies not elsewhere classified

description: Just a letter written to the President of the University of Notre Dame.
Super Liouville Theory with Boundary
Creators: name: Fukuda, Takeshi
name: Hosomichi, Kazuo
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study N=1 super Liouville theory on worldsheets with and without boundary. Some basic correlation functions on a sphere or a disc are obtained using the properties of degenerate representations of superconformal algebra. Boundary states are classified by using the modular transformation property of annulus partition functions, but there are some of those whose wave functions cannot be obtained from the analysis of modular property. There are two ways of putting boundary condition on supercurrent, and it turns out that the two choices lead to different boundary states in quality. Some properties of boundary vertex operators are also presented. The boundary degenerate operators are shown to connect two boundary states in a way slightly complicated than the bosonic case.
description: 39 pages, LaTeX. v3: References added, typos corrected
Marketing Margins for Butter
Creators: name: Harris, Edmond S.
name: Harris, Edmond S.
Publisher: name: Unknown
Year: 1958
Subjects: subject: Agricultural and Food Policy
subject: Demand and Price Analysis
subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business

description: Excerpts from the report Preface: Changes of a far-reaching nature have been taking place in the production and marketing of butter. These changes are bringing about a fuller utilization of both the fat and nonfat solids in milk produced by farmers and a more effective use of the labor, supplies, equipment, and transportation services applied in the marketing of butter. Greater efficiency is reflected in the fact that during the period of war and postwar inflation, the marketing margin per pound of butter has increased considerably less than the amount which would reflect the declining value of the dollar. The butter industry has been beset by severe competitive conditions. At the consumer end of the marketing process, there has been a great increase in the use of margarine and other nondairy fats. At the farm level, the increased capacities of creameries and the need for greater flexibility of operations has created for many plants serious problems of acquiring sufficient supplies of cream or milk for efficient operation. Butter also has attracted attention because it is one of the dairy products which has been purchased and stored as part of a Government program to support farm prices of milk and butterfat. This report contains observations of specific shipments of butter from a representative group of creameries in Minnesota and Iowa. It is believed that the accounts of the services performed and the charges made by each agency taking part in the marketing process will help farmers and consumers get a better understanding of how butter is marketed.
Efficient Functional ANOVA Through Wavelet-Domain Markov Groves
Creators: name: Ma, Li
name: Soriano, Jacopo
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Pharmacology
subject: Biotechnology
subject: Mathematical Sciences not elsewhere classified
subject: Cancer
subject: Computational Biology

description: We introduce a wavelet-domain method for functional analysis of variance (fANOVA). It is based on a Bayesian hierarchical model that employs a graphical hyperprior in the form of a Markov grove (MG)—that is, a collection of Markov trees—for linking the presence/absence of factor effects at all location-scale combinations, thereby incorporating the natural clustering of factor effects in the wavelet-domain across locations and scales. Inference under the model enjoys both analytical simplicity and computational efficiency. Specifically, the posterior of the full hierarchical model is available in closed form through a pyramid algorithm operationally similar to Mallat’s pyramid algorithm for discrete wavelet transform (DWT), achieving for exact Bayesian inference the same computational efficiency—linear in both the number of observations and the number of locations—as for carrying out the DWT. In particular, posterior probabilities of the presence of factor contributions to functional variation are directly available from the pyramid algorithm, while posterior samples for the factor effects can be drawn directly from the exact posterior through standard (not Markov chain) Monte Carlo. We investigate the performance of our method through extensive simulation and show that it substantially outperforms existing wavelet-domain fANOVA methods in a variety of common settings. We illustrate the method through analyzing the orthosis data. Supplementary materials for this article are available online.
Supersensitive quantum sensor based on criticality in an antiferromagnetic spinor condensate
Creators: name: Mirkhalaf, Safoura S.
name: Witkowska, Emilia
name: Lepori, Luca
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider an antiferromagnetic Bose-Einstein condensate in a traverse magnetic field with a fixed macroscopic magnetization. The system exhibits two different critical behaviors corresponding to transitions from polar to broken-axisymmetry and from antiferromagnetic to broken-axisymmetry phases depending on the value of magnetization. We exploit both types of system criticality as a resource in the precise estimation of control parameter value. We quantify the achievable precision by the quantum Fisher information. We demonstrate supersensitivity and show that the precision scales with the number of atoms up to $N^4$ around critically. In addition, we study the precision based on the error-propagation formula providing the simple-to-measure signal which coincides its scaling with the quantum Fisher information. Finally, we take into account the effect of non-zero temperature and show that the sub-shot noise sensitivity in the estimation of the control parameter is achievable in the low-temperature limit.
Voter model on networks partitioned into two cliques of arbitrary sizes
Creators: name: Gastner, Michael T.
name: Ishida, Kota
Publisher: name: arXiv
Year: 2019
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The voter model is an archetypal stochastic process that represents opinion dynamics. In each update, one agent is chosen uniformly at random. The selected agent then copies the current opinion of a randomly selected neighbour. We investigate the voter model on a network with an exogenous community structure: two cliques (i.e. complete subgraphs) randomly linked by $X$ interclique edges. We show that, counterintuitively, the mean consensus time is typically not a monotonically decreasing function of $X$. Cliques of fixed proportions with opposite initial opinions reach a consensus, on average, most quickly if $X$ scales as $N^{3/2}$, where $N$ is the number of agents in the network. Hence, to accelerate a consensus between cliques, agents should connect to more members in the other clique as $N$ increases but not to the extent that cliques lose their identity as distinct communities. We support our numerical results with an equation-based analysis. By interpolating between two asymptotic heterogeneous mean-field approximations, we obtain an equation for the mean consensus time that is in excellent agreement with simulations for all values of $X$.
description: Updated bibliography. To appear in Journal of Physics A: Mathematical and Theoretical
Is Pit Closure Costly for Customers? A Case of Livestock Futures
Creators: name: Gousgounis, Eleni
name: Onur, Esen
name: Gousgounis, Eleni
name: Onur, Esen
Publisher: name: Unknown
Year: 2017
Subjects: Agricultural marketing

description: Motivated by CME’s decision to close down most of the futures pits in July of 2015, we analyze the changes in the livestock futures market between 2014 and 2016. The livestock futures market, which had an active presence at the pit prior to the closure, has recently exhibited unprecedented price fluctuations. A simultaneous increase in the bid ask spread has raised concerns over the availability or liquidity in this market. The focus of our study is to analyze whether liquidity has changed for customer orders after the futures pit closed. In more detail, we track customer orders and evaluate their execution quality. We investigate whether execution costs for such trades have increased after the futures pits closed. In addition, we also examine whether customers have changed their trading behavior by placing more aggressive orders.
Neutrino Oscillations in Moving and Polarized Matter under the Influence of Electromagnetic Fields
Creators: name: Lobanov, A.
name: Studenikin, A.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Within the recently proposed \cite{ELSt99, ELStpl00, ELSt00} Lorentz invariant formalism for description of neutrino spin evolution in presence of an arbitrary electromagnetic fields matter motion and polarization effects are considered. It is shown that in the case of matter moving with relativistic speed parallel to neutrino propagation, matter effects in neutrino spin (and also flavour) oscillations are suppressed. In the case of relativistic motion of matter in the opposite direction in respect to neutrino propagation, sufficient increase of effects of matter in neutrino oscillations is predicted. These phenomena could have important consequences in different astrophysical environments.
description: 9 pages, no figures
Properties of a simple e/gamma detector consisting of a lead convertor and a hodoscope
Creators: name: Denisov, S. P.
name: Goryachev, V. N.
name: Kozelov, A. V.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The results of the calculations of coordinate resolution and hadron rejection factor for a simple e/gamma detector consisting of a lead convertor followed by a hodoscope are presented. For the simulation of showers, initiated in the converter by electrons and hadrons with energies upto 1 TeV GEANT4 is used. It is shown that the best coordinate resolution for electrons is achieved when the converter thickness is closed to the shower maximum. For example, at 200 GeV with 2 mm strip width hodoscope it is equal to sigma=89 microns provided a "truncated mean" coordinate estimation is used. The optimal thickness of the converter for hadron rejection is also close to tmax. For 200 GeV beam of electrons and protons the rejection factor of 10^-4 for 0.9 electron detection efficiency can be reached using only data on charged particles multiplicities. Information on the spatial distribution of the shower particles after the converter allows to enhance further the rejection by several times.
description: 13 pages, 11 figures
THE USAGE OF LANGUAGE PHENOMENA IN THE TRANSFER OF THOUGHT TO SPEECH
Creators: name: Sobirova, Nigina Aliyevna
Publisher: name: Zenodo
Year: 2025

description: This article discusses the role of language phenomena in transferring thought into speech. Analysis of language phenomena can be studied in the syntactic stylistics department of linguistics. Syntax deals with the arrangement of words, determining the position of words in the fluency of speech, and forms linguistic phenomena for the correct construction of sentences. Sometimes there is a need to amplify speech, and normative devices are traditionally involved in speech. Examples of such devices are known and they are systematized according to certain principles. It is in this sense that the article talks about how linguistic events and devices are necessary to enrich our speech and express our thoughts fluently. Several linguistic phenomena and their classification are mentioned in the article. The need for a detailed study of language phenomena based on scientific and theoretical sources by itself causes an increase in research on this topic, and the program of our article serves as a basis for this research.
$K^-p$ Correlation Function from High-Energy Nuclear Collisions and Chiral SU(3) Dynamics
Creators: name: Kamiya, Yuki
name: Hyodo, Tetsuo
name: Morita, Kenji
name: Ohnishi, Akira
name: Weise, Wolfram
Publisher: name: arXiv
Year: 2019
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The two-particle momentum correlation function of a K^-p pair from high-energy nuclear collisions is evaluated in the KbarN-piSigma-piLambda coupled-channels framework. The effects of all coupled channels together with the Coulomb potential and the threshold energy difference between K^-p and Kbar0 n are treated completely for the first time. Realistic potentials based on the chiral SU(3) dynamics are used which fit the available scattering data. The recently measured correlation function is found to be well reproduced by allowing variations of the source size and the relative weight of the source function of piSigma with respect to that of KbarN. The predicted K^-p correlation function from larger systems, which is less affected by the piSigma source function, indicates that the investigation of its source size dependence is useful in providing further constraints in the study of the KbarN interaction.
description: 5 pages, 3 figures, published version
Determinants of purchasing behaviour for organic and integrated fruits and vegetables in Slovenia
Creators: name: Kuhar, Ales
name: Juvancic, Luka
name: Kuhar, Ales
name: Juvancic, Luka
Publisher: name: Unknown
Year: 2010
Subjects: subject: Consumer/Household Economics
subject: Marketing
subject: FOS: Economics and business
subject: consumer behaviour
subject: fruit and vegetable
subject: organic food
subject: integrated agricultural production
subject: ordered probit model
subject: Slovenia

description: A country-vide survey related to purchasing behaviour of organic and integrated fruit and vegetables has been prepared for Slovenia. An ordered probit model of consumer choice was developed on the basis of survey results to quantify various determinants of purchase frequency for organically and integrally produced fruit and vegetables. Results show that purchase of analysed produce is most significantly influenced by their availability in retail outlets, followed by consumers’ income, health and environmental considerations, and visual attractiveness of products. Demand for organically and integrally produced fruit and vegetables could be further stimulated by targeted knowledge and awareness raising actions.
Convergence in Agriculture: Evidence from the European Regions
Creators: name: Alexiadis, Stilianos
name: Alexiadis, Stilianos
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agricultural and Food Policy
subject: Absolute and Club Convergence
subject: Agriculture
subject: European Union Regions

description: Although there have been numerous studies on regional convergence, agriculture has received far less attention. In this study, the intention is to augment the existing literature by testing for convergence in agricultural productivity among the EU-26 regions. A low rate of absolute convergence is estimated over the period 1995-2004 whilst evidence of club convergence is apparent.
Emission angle dependent pion interferometry at RHIC and beyond
Creators: name: Heinz, Ulrich W.
name: Kolb, Peter F.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We use hydrodynamics to generate freeze-out configurations for non-central heavy-ion collisions at present and future collider energies. Such collisions are known to produce strong elliptic flow. The accompanying space-time structure of the source at freeze-out is analyzed using pion interferometry. Between RHIC and LHC energies the source deformation in the transverse plane changes sign. This leaves characteristic signatures in the emission angle dependence of the HBT radii.
description: Minor changes (some references and discussion added), accepted by Physics Letters B