cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Luther-Emery Phase and Atomic-Density Waves in a Trapped Fermion Gas
Creators: name: Xianlong, Gao
name: Rizzi, M.
name: Polini, Marco
name: Fazio, Rosario
name: Tosi, M. P.
name: Campo, V. L.
name: Capelle, K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The Luther-Emery liquid is a state of matter that is predicted to occur in one-dimensional systems of interacting fermions and is characterized by a gapless charge spectrum and a gapped spin spectrum. In this Letter we discuss a realization of the Luther-Emery phase in a trapped cold-atom gas. We study by means of the density-matrix renormalization-group technique a two-component atomic Fermi gas with attractive interactions subject to parabolic trapping inside an optical lattice. We demonstrate how this system exhibits compound phases characterized by the coexistence of spin pairing and atomic-density waves. A smooth crossover occurs with increasing magnitude of the atom-atom attraction to a state in which tightly bound spin-singlet dimers occupy the center of the trap. The existence of atomic-density waves could be detected in the elastic contribution to the light-scattering diffraction pattern.
description: 10 pages, 3 figures, 1 Table, submitted to Phys. Rev. on July 25th 2006
The associated productions of the new gauge boson $B_{H}$ in the littlest Higgs model with a SM gauge boson via $e^+e^-$ collision
Creators: name: Wang, Xuelei
name: Zeng, Qingguo
name: Jin, Zhenlan
name: Liu, Suzhen
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: With the high energy and luminosity, the planned ILC has the considerable capability to probe the new heavy particles predicted by the new physics models. In this paper, we study the potential to discover the lightest new gauge boson $B_{H}$ of the littlest Higgs model via the processes $e^+e^- \to γ(Z)B_H$ at the ILC. The results show that the production rates of these two processes are large enough to detect $B_H$ in a wide range of the parameter space, specially for the process $e^+e^- \to γB_H$. Furthermore, there exist some decay modes for $B_H$ which can provide the typical signal and clean background. Therefore, the new gauge boson $B_H$ should be observable via these production processes with the running of the ILC if it exists indeed.
description: 10 pages, 4 figures
Low-energy excitations of a boson pair in a double-well trap
Creators: name: Murphy, D. S.
name: McCann, J. F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The states of a boson pair in a one-dimensional double-well potential are investigated. Properties of the ground and lowest excited states of this system are studied, including the two-particle wavefunction, momentum pair distribution and entanglement. The effects of varying both the barrier height and the effective interaction strength are investigated.
description: 16 pages, 15 figures
Exploring the extended density-dependent Skyrme effective forces for normal and isospin-rich nuclei to neutron stars
Creators: name: Agrawal, B. K.
name: Dhiman, Shashi K.
name: Kumar, Raj
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We parameterize the recently proposed generalized Skyrme effective force (GSEF) containing extended density dependence. The parameters of the GSEF are determined by the fit to several properties of the normal and isospin-rich nuclei. We also include in our fit a realistic equation of state for the pure neutron matter up to high densities so that the resulting Skyrme parameters can be suitably used to model the neutron star with the "canonical" mass ($\sim 1.4 M_\odot$). For the appropriate comparison we generate a parameter set for the standard Skyrme effective force (SSEF) using exactly the same set of the data as employed to determine the parameters of the GSEF. We find that the GSEF yields larger values for the neutron skin thickness which are closer to the recent predictions based on the isospin diffusion data. The Skyrme parameters so obtained are employed to compute the strength function for the isoscalar giant monopole, dipole and quadrupole resonances. It is found that in the case of GSEF, due to the the larger value of the nucleon effective mass the values of centroid energies for the isoscalar giant resonances are in better agreement with the corresponding experimental data in comparison to those obtained using the SSEF. We also present results for some of the key properties associated with the neutron star of "canonical" mass and for the one with the maximum mass.
description: 45pages, 16 figures
Directed polymer in a random medium of dimension 1+1 and 1+3: weights statistics in the low-temperature phase
Creators: name: Monthus, Cecile
name: Garel, Thomas
Publisher: name: arXiv
Year: 2007
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We consider the low-temperature $T
description: 13 pages, 29 figures
Lepton masses and mixing without Yukawa hierarchies
Creators: name: Ponce, William A.
name: Zapata, Oscar
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the neutrino masses and mixing patten in a version of the $SU(3)_c\otimes SU(3)_L\otimes U(1)_X$ model with one extra exotic charged lepton per family as introduced by Ozer. It is shown that an extended scalar sector, together with a discrete $Z_2$ symmetry, is able to reproduce a consistent lepton mass spectrum without a hierarchy in the Yukawa coupling constants, the former as a carefull balance between one universal see-saw and two radiative mechanisms.
description: 7 pages, 2 figures, accepted for publication in Phys. Rev. D1
Additional file 1: of The elevated levels of urinary angiotensinogen are correlated with the severity of idiopathic membranous nephropathy
Creators: name: Tang, Ziyong
name: Wang, Yue
name: Tao, Liyuan
name: Guo, Yanhong
name: Zheng, Yimu
name: Zheng, Danxia
Publisher: name: figshare
Year: 2018
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Table S1. Baseline clinical and laboratory data and UAGT levels of iMN patients, MCD patients, and normal subjects. Table S2. Pearson’s correlation of UAGT and other variables in the iMN or MCD patients. Table S3. Multivariate linear regression analysis between UAGT and other variables in iMN patients. Figure S1. Comparison of the UAGT levels among the iMN patients, MCD patients and normal healthy subjects. Both of the iMN patients and MCD patients had higher UAGT levels than normal subjects; there were no differences between the iMN patients and MCD patients. Figure S2. Correlations between UAGT and other variables in iMN patients: A), UAGT levels were negatively correlated with eGFR (r = − 0.352, p = 0.014); B), UAGT levels were negatively correlated with serum albumin (r = − 0.393, p = 0.006); C), UAGT levels were positively correlated with proteinuria (r = 0.614, p < 0.001). (DOCX 387 kb)
Additional file 5: of Panicle Morphology Mutant 1 (PMM1) determines the inflorescence architecture of rice by controlling brassinosteroid biosynthesis
Creators: name: Li, Yan
name: Li, Xuemei
name: Fu, Debao
name: Wu, Changyin
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Virology

description: Table S3. Primers for qRT-PCR, genotyping, and plasmid construction. (DOCX 18 kb)
Vaccination and SARS-CoV-2 variants: how much containment is still needed? A quantitative assessment
Creators: name: Giordano, Giulia
name: Colaneri, Marta
name: Di Filippo, Alessandro
name: Blanchini, Franco
name: Bolzern, Paolo
name: De Nicolao, Giuseppe
name: Sacchi, Paolo
name: Bruno, Raffaele
name: Colaneri, Patrizio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Systems and Control (eess.SY)
subject: Dynamical Systems (math.DS)
subject: FOS: Biological sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics

description: Despite the progress in medical care, combined population-wide interventions (such as physical distancing, testing and contact tracing) are still crucial to manage the SARS-CoV-2 pandemic, aggravated by the emergence of new highly transmissible variants. We combine the compartmental SIDARTHE model, predicting the course of COVID-19 infections, with a new data-based model that projects new cases onto casualties and healthcare system costs. Based on the Italian case study, we outline several scenarios: mass vaccination campaigns with different paces, different transmission rates due to new variants, and different enforced countermeasures, including the alternation of opening and closure phases. Our results demonstrate that non-pharmaceutical interventions (NPIs) have a higher impact on the epidemic evolution than vaccination, which advocates for the need to keep containment measures in place throughout the vaccination campaign. We also show that, if intermittent open-close strategies are adopted, deaths and healthcare system costs can be drastically reduced, without any aggravation of socioeconomic losses, as long as one has the foresight to start with a closing phase rather than an opening one.
Multiquantum well spin oscillator
Creators: name: Bonilla, L. L.
name: Escobedo, R.
name: Carretero, M.
name: Platero, G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A dc voltage biased II-VI semiconductor multiquantum well structure attached to normal contacts exhibits self-sustained spin-polarized current oscillations if one or more of its wells are doped with Mn. Without magnetic impurities, the only configurations appearing in these structures are stationary. Analysis and numerical solution of a nonlinear spin transport model yield the minimal number of wells (four) and the ranges of doping density and spin splitting needed to find oscillations.
description: 11 pages, 2 figures, shortened and updated version
Mellin transform and subordination laws in fractional diffusion processes
Creators: name: Mainardi, Francesco
name: Pagnini, Gianni
name: Gorenflo, Rudolf
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 26A33, 33C60, 42A38, 44A15, 44A35, 60G18, 60G52

description: The Mellin transform is usually applied in probability theory to the product of independent random variables. In recent times the machinery of the Mellin transform has been adopted to describe the Lévy stable distributions, and more generally the probability distributions governed by generalized diffusion equations of fractional order in space and/or in time. In these cases the related stochastic processes are self-similar and are simply referred to as fractional diffusion processes. We provide some integral formulas involving the distributions of these processes that can be interpreted in terms of subordination laws.
description: 21 pages
Non-extensive Behavior of a Stock Market Index at Microscopic Time Scales
Creators: name: Cortines, A. A. G.
name: Riera, R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Statistical Finance (q-fin.ST)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: This paper presents an empirical investigation of the intraday Brazilian stock market price fluctuations, considering q-Gaussian distributions that emerge from a non-extensive statistical mechanics. Our results show that, when returns are measured over intervals less than one hour, the empirical distributions are well fitted by q-Gaussians with exponential damped tails. Scaling behavior is also observed for these microscopic time intervals. We find that the time evolution of the distributions is according to a super diffusive q-Gaussian stationary process within a nonlinear Fokker-Planck equation. This regime breaks down due to the exponential fall-off of the tails, which in turn, governs the transient dynamics to the long-term macroscopic Gaussian regime. Our results suggest that this modeling provides a framework for the description of the dynamics of stock markets intraday price fluctuations.
description: 17 pages, 11 figures and 1 table
Stroboscopic wavepacket description of non-equilibrium many-electron problems
Creators: name: Bokes, P.
name: Corsetti, F.
name: Godby, R. W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We introduce the construction of a orthogonal wavepacket basis set, using the concept of stroboscopic time propagation, tailored to the efficient description of non-equilibrium extended electronic systems. Thanks to three desirable properties of this basis, significant insight is provided into non-equilibrium processes (both time-dependent and steady-state), and reliable physical estimates of various many-electron quantities such as density, current and spin polarization can be obtained. The use of this novel tool is demonstrated for time-dependent switching-on of the bias in quantum transport, and new results are obtained for current-induced spin accumulation at the edge of a 2D doped semiconductor caused by edge-induced spin-orbit interaction.
description: 4 pages, 2 figures
D4.1 Initial report on test-plan creation and methodology, and development of test orchestration framework
Creators: name: Grøndalen, Ole
name: Dieudonné, Michael
name: Mikkelsen, Lars
name: Tejería, Sonia Fernández
name: Othman, Mohammad
name: Haitao Shi
name: Cattoni, Andrea F.
name: Elmokashfi, Ahmed
Publisher: name: Zenodo
Year: 2019

description: WP4 is focused on ensuring that the 5G-VINNI facility delivered by the project is verified with a
 uniform testing procedure, allowing the Mobile Network Operators that are part of the consortium
 to have confidence in the system. The focus of WP4 is on testing methodology, test execution and
 E2E network validation to verify that KPIs across different verticals are met. The WP is intended to
 provide all the needed testing and validation tools and support across the project, as well as
 providing the support needed by vertical projects hosted by the 5G-VINNI facility. This document is
 structured as a report on the different activities of the Tasks T4.1 and T4.2 carried out during the first
 Period, while the Annexes represent the initial structure of a live document that will become, at the
 end of the project, with D4.4 the official Test Specification handbook of the 5G-VINNI project.
Non-adiabatic dynamics in Rydberg gases with random atom positions
Creators: name: Pant, Ritesh
name: Agrawal, Rajat
name: Wüster, Sebastian
name: Rost, Jan-Michael
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Assemblies of highly excited Rydberg atoms in an ultracold gas can be set into motion by a combination of van-der-Waals and resonant dipole-dipole interactions. Thereby, the collective electronic Rydberg state might change due to non-adiabatic transitions, in particular if the configuration encounters a conical interaction. For the experimentally most accessible scenario, in which the Rydberg atoms are initially randomly excited in a three-dimensional bulk gas under blockade conditions, we numerically show that non-adiabatic transitions can be common when starting from the most energetic repulsive BO-surface. We outline how this state can be selectively excited using a microwave resonance, and demonstrate a regime where almost all collisional ionization of Rydberg atoms can be traced back to a prior non-adiabatic transition. Since Rydberg ionisation is relatively straightforward to detect, the excitation and measurement scheme considered here renders non-adiabatic effects in Rydberg motion easier to demonstrate experimentally than in scenarios considered previously.
description: 7 pages, 6 figures
Νανοδομές πυρήνα-κελύφους ευγενών μετάλλων – νιτριδίων μετάλλων συνδυάζοντας παραδοσιακά και εναλλακτικά πλασμονικά υλικά για ενίσχυση υψηλών πεδίων σε ανθεκτικές και ρεαλιστικές συσκευές
Creators: name: Νικίδης, Ευστράτιος Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Νανοσωματίδια
Πλασμόνια
Πυρήνα - κελύφους
Nanoparticles
Plasmons
Core - Shell

description: Στην εργασία αυτή διερευνάται η ικανότητα των νιτριδίων μετάλλων μετάπτωσης (ΤΜΝ) να επιλύσουν τα κύρια προβλήματα των πλασμονικών νανοσωματιδίων αργύρου και χρυσού, δηλαδή αυτό της αυθόρμητης οξείδωσης και της εύκολης καταστροφής του επιθυμητού τους σχήματος. Η λύση των προβλημάτων αυτών επιτυγχάνεται με την δημιουργία core-shell νανοδομών έχοντας σαν πυρήνα το ευγενές μέταλλο και σαν κέλυφος το ΤΜΝ. Τα TMNs ως κεραμικά έχουν πυρίμαχο χαρακτήρα, πολύ καλές μηχανικές ιδιότητες τους και εξαιρετικά καλή χημική σταθερότητα με αποτέλεσμα να μορφοποιούνται σχετικά δύσκολα. Εξαιτίας αυτή της δυσκολίας στην μορφοποίηση, έχει προταθεί να χρησιμοποιηθεί η αλούμινα (Al2O3) στην θέση τους. Η επιβεβαίωση της υπεροχής τους γίνεται με την χρήση της μεθόδου Finite-difference time-domain μελετώντας την οπτική απόκριση για διάφορα ζεύγη TMN – metal και συγκρίνονται με αυτή της αλούμινας. Από όλα τα ζεύγη κελύφους – πυρήνα που εξετάστηκαν προέκυψε πως το νιτρίδιο του ζιρκονίου (ZrN) σε σχέση με τα υπόλοιπα ΤΝΜs και την αλούμινα εμφανίζει την ισχυρότερη κορυφή εντοπισμένου επιφανειακού πλασμονίου. Τέλος και στις ιδιότητες κοντινού πεδίου εμφανίζεται το Zirconium nitride να έχει καλύτερη κάλυψη του ορατού φάσματος, αλλά και σε μια πιθανή αύξηση του πάχους του κελύφους συμπεριφέρεται καλύτερα από τα υπόλοιπα.
description: In this project, is investigated the ability of transition metal nitrides (TMNs) to solve the main problems of plasmonic nanoparticles of silver and gold, namely that of spontaneous oxidation and easy degradation of their desired shape. The solution of these problems is achieved by creating core-shell nanostructures with the noble metal as the core and the TMN as the shell. TMNs as ceramics have a refractory character, very good mechanical properties and extremely good chemical stability, resulting in a relative difficulty to form them. Due to this difficulty in molding, it has been proposed to use alumina (Al2O3) in their place. Confirmation of their superiority is achieved by using the Finite-difference time-domain method, studying the optical response for different pairs of TMN - metal and then comparing them with that of alumina. From all the shell-core pairs examined, it was found that Zirconium nitride (ZrN) in relation to the other TNMs and alumina shows the strongest peak of localized surface plasmon. Finally, in the near field properties, Zirconium nitride also appears to have better coverage of the visible spectrum, but also in a possible increase in the thickness of the shell, it behaves better than the rest.
The planar two-body problem for spheroids and disks
Creators: name: Wold, M.
name: Conway, J. T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We outline a new method suggested by Conway (2016) for solving the two-body problem for solid bodies of spheroidal or ellipsoidal shape. The method is based on integrating the gravitational potential of one body over the surface of the other body. When the gravitational potential can be analytically expressed (as for spheroids or ellipsoids), the gravitational force and mutual gravitational potential can be formulated as a surface integral instead of a volume integral, and solved numerically. If the two bodies are infinitely thin disks, the surface integral has an analytical solution. The method is exact as the force and mutual potential appear in closed-form expressions, and does not involve series expansions with subsequent truncation errors. In order to test the method, we solve the equations of motion in an inertial frame, and run simulations with two spheroids and two infinitely thin disks, restricted to torque-free planar motion. The resulting trajectories display precession patterns typical for non-Keplerian potentials. We follow the conservation of energy and orbital angular momentum, and also investigate how the spheroid model approaches the two cases where the surface integral can be solved analytically, i.e. for point masses and infinitely thin disks.
description: 15 pages, 5 figures, accepted for publication in Celestial Mechanics and Dynamical Astronomy
Conceiving local archival institutions: a study of the development of archival programs in Richmond and Delta, British Columbia
Creators: name: Chong, Bernice W.
Publisher: name: University of British Columbia
Year: 2008

description: This essay tries to determine how two municipal archival programs develop from their origins as collections of historical documents in museums, and whether they fit into the larger pattern of archival development found in Canadian federal and provincial public archives, which is identified as "total archives". To provide some context for the two case studies, the essay first examines the main features of the Canadian tradition of "total archives" and tries to locate Canadian archives in the context of the worldwide evolution of modern archival institutions. The essay then explores the development of municipal archival programs in Delta and Richmond, British Columbia to reveal how they were conceived, advanced and sustained. The study concludes that local archival programs do fit into the Canadian tradition of "total archives", however, a conceptual framework which includes both the cultural and administrative purposes of archival institutions appears to be lacking. The conclusion summarizes some of the aspects of a conceptual framework including: the nature of archives, the legal status of public records and the need for archival legislation, the administrative role of an archival program, the need for a commitment of adequate resources, and the need for local governments to recognize their duty to preserve and make accessible public records of continuing value.
Quasi-particle perspective on critical end-point
Creators: name: Bluhm, M.
name: Kampfer, B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Within a quasi-particle model for the equation of state of strongly interacting matter for two quark flavors we include phenomenologically features of the QCD critical point and discuss its impact on the equation of state. In particular, we investigate the influence on the quark number susceptibility and the pattern of isentropic trajectories which describe the evolutionary paths of matter during the hydrodynamical expansion of a heavy-ion collision.
description: Nov 2006. 12 pp. Invited Talk given at Critical Point and Onset of Deconfinement, Florence, Italy, 3-6 July 2006
Ανάπτυξη αυτόματης μεθόδου SIA για τον προσδιορισμό της ιστιδίνης σε τυχαία δείγματα ανθρώπινων ούρων
Creators: name: Αλευρίδης, Αντώνιος Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Χημική Ανάλυση
Αυτόματη Μέθοδος
Ιστιδίνη
Chemical Analysis
Automated Method
Histidine

description: Σκοπός της παρούσας εργασίας είναι ο προσδιορισμός της ιστιδίνης (HIS) με μια μέθοδο on-line ροής που βασίζεται στην έννοια της ζώνης υγρών. Η HIS αντιδρά γρήγορα με ο-φθαλαλδεΰδη σε ελαφρώς βασικό περιβάλλον (pΗ 7,5) και απουσία επιπρόσθετων πυρηνόφιλων ενώσεων για να δώσει ένα ισχυρά φθορίζον παράγωγο (λex / λem = 360/440 nm). Η διαδικασία ροής βελτιστοποιήθηκε και επικυρώθηκε, δίνοντας ιδιαίτερη προσοχή στην εκλεκτικότητα και την ευαισθησία της. Το LOD ήταν 31 nmol·L − 1, ενώ η ακρίβεια τόσο εντός της ημέρας, όσο και μέρα με τη μέρα, ήταν καλύτερη από 1,0% και 5,0%, αντίστοιχα (n = 6). Τυχαία δείγματα ούρων από ενήλικες εθελοντές (n = 7) αναλύθηκαν επιτυχώς χωρίς επίδραση υποστρώματος (<1%). Η συγκέντρωση της HIS στα δείγματα κυμαινόταν μεταξύ 116 και 1527 μmol·L − 1 , με ποσοστά ανάκτησης που κυμαίνονταν από 87,6% –95,4%.
description: In the present study, the determination of histidine (HIS) by an on-line ﬂow method based on the concept of zone ﬂuidics is reported. HIS reacts fast with o-phthalaldehyde at a mildly basic medium (pH 7.5) and in the absence of additional nucleophilic compounds to yield a highly ﬂuorescent derivative (λex/λem = 360/440 nm). The ﬂow procedure was optimized and validated, paying special attention to its selectivity and sensitivity. The LOD was 31 nmol·L−1, while the within-day and day-to-day precisions were better than 1.0% and 5.0%, respectively (n = 6). Random urine samples from adult volunteers (n = 7) were successfully analyzed without matrix eﬀect (<1%). Endogenous HIS content ranged between 116 and 1527 µmol·L−1 with percentage recoveries in the range of 87.6%–95.4%.
Additional file 1 of Attenuation of PM2.5-induced alveolar epithelial cells and lung injury through regulation of mitochondrial fission and fusion
Creators: name: Liu, Qi
name: Weng, Jiali
name: Li, Chenfei
name: Feng, Yi
name: Xie, Meiqin
name: Wang, Xiaohui
name: Chang, Qing
name: Li, Mengnan
name: Chung, Kian Fan
name: Adcock, Ian M
name: Huang, Yan
name: Zhang, Hai
name: Li, Feng
Publisher: name: figshare
Year: 2023
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Environmental Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer

description: Supplementary Material 1
Impact of food rescue nutrition
Creators: name: Mousa, Tamara Yousef
Publisher: name: The University of Texas at Austin
Year: 2017
Subjects: Food rescue nutrition
Nutritional status

description: Food insecurity affects 13.4% of Americans, although 30-40% of food is deposited in landfills. Food rescue nutrition is the process of redistribution of surplus food to the low-income. This research consists of four studies. In study 1 and 2, the extent of involvement and motivations of organizations and volunteers in food rescue nutrition were documented. In study 1, food rescue nutrition survey was developed, validated and tested to obtain information from 100 organizations in eight Southwestern states. The organizations donated an average of 2 million kg of food/month to 41,734 clients. These agencies were dependent on an average of eight workers and 3,081 volunteers. Challenges reported were the reduction of food portions and turning away clients due to lack of resources. In study 2, the Motivations to Volunteer Scale was created to measure motivations to volunteer in food rescue nutrition, and validated in 40 adults, then tested in 300 individuals. This newly developed scale was documented to be a valid tool (mean score = 9.15 ± 0.17), and consisted of four factors: requirement, career improvement, social life and altruism. Study 3 assessed the impact of food donations on diet quality and nutritional status of 222 clients of a soup kitchen and food pantry. Participants completed a demographic questionnaire, food frequency questionnaire and list of food donations. The food pantry donations supplemented the total diet with ≥ 50% of the client's daily needs of energy, macronutrients, vitamins B₆ and B₁₂, phosphorus, copper and selenium. The total diet of these clients also met the 2015 United States Dietary Guidelines for refined grains, fruits, vegetables and meat, but not for whole grains and dairy foods. Study 4 was similar to study 3, but included clients of a soup kitchen. Dietary intake of these participants was much poorer than those of the food pantry, and 95% were homeless. The soup kitchen meal lacked vegetables and meat; nonetheless, it improved total diet quality by 10%. Thus, organizations and volunteers were highly involved in food rescue nutrition. Furthermore, food donations from the food pantry and soup kitchen improved nutritional status and diet quality of the clients.
Μη επεμβατική παρακολούθηση φορτίου με χρήση αλγορίθμων ενισχυτικής μάθησης
Creators: name: Τζηρίδης, Θεόδωρος Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Ενισχυτική μάθηση
Βαθιά μάθηση
Μη επεμβατική παρακολούθηση φορτίου (ΜΕΠΦ)
Επιμερισμός ισχύος
Reinforcement learning
Deep learning
Non intrusive load monitoring (NILM)
Energy disaggregation

description: Η Μη Επεμβατική Παρακολούθηση Φορτίου (ΜΕΠΦ), γνωστή και ως επιμερισμός ισχύος, αποτελεί αντικείμενο επιστημονικής έρευνας για περισσότερες από τρεις δεκαετίες. Από τη σκοπιά της Μηχανικής Μάθησης, οι κύριοι αλγόριθμοι που έχουν παρουσιαστεί μέχρι στιγμής μπορούν να κατηγοριοποιηθούν σε επιβλεπόμενης, μη επιβλεπόμενης και ημι-επιβλεπόμενης μάθησης. Σε αυτή την εργασία εξερευνούμε τη δυνατότητα ορισμού του ΜΕΠΦ ως ενός προβλήματος Ενισχυτικής Μάθησης. Αρχικά, παρατίθεται ο ορισμός του ΜΕΠΦ σαν πρόβλημα συνδυαστικής βελτιστοποίησης, όπως έχει παρουσιαστεί στη βιβλιογραφία. Στη συνέχεια, αναφέρονται οι διαφορετικές μεθοδολογίες που χρησιμοποιούν οι ερευνητές Μηχανικής Μάθησης για τη επίλυση προβλημάτων συνδυαστικής βελτιστοποίησης. Μετά ακολουθεί μία ανάλυση της End-to-End μεθοδολογίας, καθώς πιστεύουμε ότι είναι η καταλληλότερη για την εφαρμογή στο ΜΕΠΦ, με επίκεντρο τα σχεδιαστικά χαρακτηριστικά των αντίστοιχων ερευνητικών εργασιών. Στη συνέχεια, αναφέρονται τα σχεδιαστικά χαρακτηριστικά των κυριότερων αλγορίθμων Βαθιάς Μάθησης που έχουν εφαρμοστεί στο ΜΕΠΦ και παρατηρούνται οι αδυναμίες τους από την οπτική της Ενισχυτικής Μάθησης. Τέλος, παρουσιάζεται μια θεωρητική δομή για τη χρήση αλγορίθμων Βαθιάς Ενισχυτικής Μάθησης στο πρόβλημα του επιμερισμού ισχύος (ΜΕΠΦ).
description: Non-intrusive load monitoring (NILM), also known as energy disaggregation, has been a challenging task for the scientific community in the last three decades and there has been produced a wide variety of algorithms that solve the problem. From the Machine Learning community, the main algorithms presented so far are supervised, unsupervised and some semi-supervised algorithms. In this paper we explored the formulation of NILM as a Reinforcement Learning problem. First, we presented a combinatorial optimization formulation that has been used in the literature. Then, we survey the algorithmic structures used from Machine Learning researchers to solve combinatorial optimization problems. We focused on the End-to-End structure, as we believe is the one more appropriate for NILM and analyzed the designed characteristics of the related work. Then, we briefly inspected the design characteristics of Deep Learning models used until now on NILM and analyzed their drawbacks from a Reinforcement Learning perspective. Finally, we proposed a theoretical framework that can be used as a blueprint to create Deep Reinforcement Learning algorithms for energy disaggregation.
Intelligent Well Completions
Creators: name: Τζίμας, Στέφανος Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Έξυπνο Πηγάδι
Ολοκλήρωση
Παραγωγή
Intelligent Well
Completion
Production

description: Through the years the demand for energy sources has been increased. The conventional methods of producing oil and gas are no longer sufficient to meet up with the demand. The oil and gas industry has faced several economic, geographical and technical challenges largely due to decline in crude oil prices and market volatility and there has been an increased migration to unconventional methods for the last few decades. A common solution to minimizing this problem is to increase oil production and recovery factor from new and existing oil and gas fields using Intelligent Well Completions (IWC). This thesis analyzes Well Completions and Well Completion’s methods and focuses on the new methods of Completion, the Intelligent Well Completions.
description: Κατά την διάρκεια των χρόνων οι ανάγκες για πηγές ενέργειας έχουν αυξηθεί. Οι συμβατικές μέθοδοι για παραγωγή πετρελαίου δεν είναι πλέον επαρκής για να καλύψουν αυτές τις ανάγκες. Οι πετρελαικές εταιρείες έχουν έρθει αντιμέτωπες με διάφορες οικονομικές, γεωγραφικές και τεχνικές προκλήσεις που αυξάνονται λόγω της απόκλισης της τιμής του πετρελαίου και της αστάθειας της αγοράς και έτσι έχει αυξηθεί η χρήση των μη συμβατικών μεθόδων τις τελευταίες δεκαετίες. Μία κοινή λύση για να μειωθεί αυτό το πρόβλημα είναι η αύξηση της παραγωγής και του δείκτη αποληψημότητας από νέα και ήδη υπάρχοντα πετρελαικά πεδία χρησιμοποιώντας το Intelligent Well Completion (IWC). Σε αυτή την διπλωματική αναλύονται το Well Completion και οι μέθοδοι Well Completion και επικεντρώνεται στις νέες μεθόδους Completion, τα Intellingent Well Completion.
description: Σε συνεργασία με: Μηχανικών Μεταλλείων Μεταλλουργών (Εθνικό Μετσόβιο Πολυτεχνείο), Γεωλογίας και Γεωπεριβάλλοντος (Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών), Οικονομικών Επιστημών (Δημοκρίτειο Πανεπιστήμιο Θράκης)
The Fourier Singular Complement Method for the Poisson problem. Part I: prismatic domains
Creators: name: Ciarlet, Patrick
name: Jung, Beate
name: Kaddouri, Samir
name: Labrunie, Simon
name: Zou, Jun
Publisher: name: arXiv
Year: 2006
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 65N30, 35L15

description: This is the first part of a threefold article, aimed at solving numerically the Poisson problem in three-dimensional prismatic or axisymmetric domains. In this first part, the Fourier Singular Complement Method is introduced and analysed, in prismatic domains. In the second part, the FSCM is studied in axisymmetric domains with conical vertices, whereas, in the third part, implementation issues, numerical tests and comparisons with other methods are carried out. The method is based on a Fourier expansion in the direction parallel to the reentrant edges of the domain, and on an improved variant of the Singular Complement Method in the 2D section perpendicular to those edges. Neither refinements near the reentrant edges of the domain nor cut-off functions are required in the computations to achieve an optimal convergence order in terms of the mesh size and the number of Fourier modes used.
Weak complicial sets, a simplicial weak omega-category theory. Part II: nerves of complicial Gray-categories
Creators: name: Verity, Dominic
Publisher: name: arXiv
Year: 2006
Subjects: subject: Category Theory (math.CT)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 18D05, 55U10 (Primary) 18D15, 18D20, 18D35, 18F99, 18G30 (Secondary)

description: This paper continues the development of a simplicial theory of weak omega-categories, by studying categories which are enriched in weak complicial sets. These complicial Gray-categories generalise both the Kan complex enriched categories of homotopy theory and the Gray-categories of weak 3-category theory. We derive a simplicial nerve construction, which is closely related to Cordier and Porter's homotopy coherent nerve, and show that this faithfully represents complicial Gray-categories as weak complicial sets. The category of weak complicial sets may itself be canonically enriched to a complicial Gray-category whose homsets are higher generalisations of the bicategory of homomorphisms, strong transformations and modifications. By applying our nerve construction to this structure, we demonstrate that the totality of all (small) weak complicial sets and their structural morphisms at higher dimensions form a richly structured (large) weak complicial set.
description: 27 pages
Some properties of the value function and its level sets for affine control systems with quadratic cost
Creators: name: Trélat, Emmanuel
Publisher: name: arXiv
Year: 2006
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: Let $T>0$ fixed. We consider the optimal control problem for analytic affine systems: $\ds{\dot{x}=f\_0(x)+\sum\_{i=1}^m u\_if\_i(x)}$, with a cost of the form: $\ds{C(u)=\int\_0^T \sum\_{i=1}^m u\_i^2(t)dt}$. For this kind of systems we prove that if there are no minimizing abnormal extremals then the value function $S$ is subanalytic. Secondly we prove that if there exists an abnormal minimizer of corank 1 then the set of end-points of minimizers at cost fixed is tangent to a given hyperplane. We illustrate this situation in sub-Riemannian geometry.
Transverse Velocity Dependence of the Proton-Antiproton Ratio as a Signature of the QCD Critical Endpoint
Creators: name: Asakawa, M.
name: Bass, S. A.
name: Müller, B.
name: Nonaka, C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The presence of a critical point in the QCD phase diagram can deform the trajectories describing the evolution of the expanding fireball in the $μ_B-T$ phase diagram. If the average emission time of hadrons is a function of transverse velocity, as microscopic simulations of the hadronic freeze-out dynamics suggest, the deformation of the hydrodynamic trajectories will change the transverse velocity ($β_{\rm T}$) dependence of the proton-antiproton ratio when the fireball passes in the vicinity of the critical point. An unusual $β_{\rm T}$-dependence of the $\bar{p}/p$ ratio in a narrow beam energy window would thus signal the presence of the critical point.
description: Final version accepted for publication
Variational Autoencoder for Speech Enhancement with a Noise-Aware Encoder
Creators: name: Fang, Huajian
name: Carbajal, Guillaume
name: Wermter, Stefan
name: Gerkmann, Timo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Machine Learning (cs.LG)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Recently, a generative variational autoencoder (VAE) has been proposed for speech enhancement to model speech statistics. However, this approach only uses clean speech in the training phase, making the estimation particularly sensitive to noise presence, especially in low signal-to-noise ratios (SNRs). To increase the robustness of the VAE, we propose to include noise information in the training phase by using a noise-aware encoder trained on noisy-clean speech pairs. We evaluate our approach on real recordings of different noisy environments and acoustic conditions using two different noise datasets. We show that our proposed noise-aware VAE outperforms the standard VAE in terms of overall distortion without increasing the number of model parameters. At the same time, we demonstrate that our model is capable of generalizing to unseen noise conditions better than a supervised feedforward deep neural network (DNN). Furthermore, we demonstrate the robustness of the model performance to a reduction of the noisy-clean speech training data size.
description: ICASSP 2021. (c) 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works
Ανάπτυξη και εφαρμογή μοντέλων γλώσσας σε ελληνικά λογοτεχνικά κείμενα
Creators: name: Θεοδωρίδου, Ιφιγένεια Αθανασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Ταξινόμηση κειμένου
Αναγνώριση είδους βιβλίων
Προεκπαιδευμένο μοντέλο γλώσσας
Text classification
Genre identification
Pre-trained language model

description: Τα τελευταία χρόνια η εξέλιξη της μηχανικής μάθησης και οι επιτυχίες της σε ένα ευρύ φάσμα εφαρμογών, έχουν καταστήσει αναγκαία την ενσωμάτωση συστημάτων τεχνητής νοημοσύνης σε διαφορετικούς κλάδους. Η ανάγκη για εφαρμογή μηχανικής μάθησης στον τομέα της λογοτεχνίας προκύπτει από την αναζήτηση αυτόματων τρόπων οργάνωσης συλλογών λογοτεχνικών βιβλίων και αυτόματων τρόπων κατανόησης του περιεχομένου τους. Η περιορισμένη εφαρμογή της μηχανικής μάθησης στον τομέα της λογοτεχνίας σημειώνεται λόγο της έλλειψης συλλογών με ετικέτες επαλήθευσης για την εκπαίδευση των μοντέλων μάθησης. Οι πρόσφατες έρευνες για την ανάπτυξη προ-εκπαιδευμένων γλωσσικών μοντέλων με την αξιοποίηση τεράστιου όγκου δεδομένων χωρίς την ανάγκη για ύπαρξη ετικετών επαλήθευσης, προσφέρει την δυνατότητα αποκόμισης πληροφοριών από ένα μεγάλο αριθμό λογοτεχνικών συλλογών. Στην παρούσα διπλωματική εργασία αναπτύσσεται ένα προ-εκπαιδευμένο γλωσσικό μοντέλο εστιασμένο στα ελληνικά λογοτεχνικά κείμενα. Αρχικά εφαρμόζεται μία μεθοδολογία για την προσαρμογή ενός γλωσσικού μοντέλου εκπαιδευμένου σε ελληνικά κείμενα στο πεδίο της λογοτεχνίας. Στην συνέχεια προσαρμόζεται το μοντέλο μάθησης στο πρόβλημα της ταξινόμησης βιβλίων ανά είδος, μέσω της διαδικασίας της εκπαίδευσης με επίβλεψη. Τέλος αξιολογείται η απόδοση του νέου γλωσσικού μοντέλου στο πρόβλημα ταξινόμησης βιβλίων ανά είδος.
description: In recent years, machine learning has achieved remarkable success in a wide range of applications, a fact that leads to an ever-growing demand for machine learning systems to be used in various disciplines. The need for the application of machine learning in the field of literature arises from searching automatic ways of organizing collections of literary books and automatic ways of extracting valuable information from the literature. However, deep learning models require a large amount of annotated data for the training process. Recent researches on training language representation models on text corpora, overcome the aforementioned issue, and offer the possibility of making use of a large number of unannotated literature corpora for text mining. The main scope of the thesis is to develop a pre-trained language model for Greek literature. We present a step by step methodology for creating a Greek literature language model and then apply it to a genre identification problem in Greek literature.
Η συμπεριφορά καταναλωτή στο χώρο των οπτικών ειδών
Creators: name: Σίμος, Δημήτριος Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Συμπεριφορά καταναλωτή
Οπτικά είδη
Αγοραστική απόφαση
Consumer behavior
Optics
Buying decision

description: Οι ανάγκες οπτικών ειδών είναι αυξημένες σήμερα και αναμένεται να αυξηθούν ακόμα περισσότερο. Ενώ, ο ανταγωνισμός σε αυτό τον χώρο είναι αρκετά υψηλός. Ταυτόχρονα η συμπεριφορά των καταναλωτών οπτικών ειδών είναι περίπλοκη και επηρεάζεται από κοινωνικούς, πολιτισμικούς, προσωπικούς και ψυχολογικούς παράγοντες. Σε αυτό το πλαίσιο, πραγματοποιείται πρωτογενής ποσοτική έρευνα με σκοπό τη διερεύνηση της συμπεριφοράς του καταναλωτή οπτικών ειδών. Διαμοιράστηκε δομημένο ερωτηματολόγιο σε δείγμα 101 καταναλωτών οπτικών ειδών. Τα κυριότερα αποτελέσματα έδειξαν πως επηρεάζονται κυρίως από κοινωνικούς, προσωπικούς και ψυχολογικούς παράγοντες και λιγότερο από τους πολιτισμικούς, η επιρροή των οποίων εντοπίζεται στην ηλικιακή ομάδα και στην άποψη άλλων ατόμων με κοινές πεποιθήσεις. Οι γυναίκες και όσοι έχουν μικρό εισόδημα επηρεάζονται από την οικογένεια. Όλα τα χαρακτηριστικά του προϊόντος λαμβάνονται υπόψη κατά την απόφαση, με κυριότερο ρόλο να διαδραματίζει η τιμή. Επιπροσθέτως, οι καταναλωτές οπτικών ειδών πραγματοποιούν αρκετά όλα τα βήματα της αγοραστικής απόφασης, ιδιαίτερα την αναγνώριση της ανάγκης και δεν είναι πιστοί σε κάποια συγκεκριμένη μάρκα, αλλά προτιμούν να δοκιμάζουν πολλές διαφορετικές. Ωστόσο, στην περίπτωση διλήμματος θα επέλεγαν την πιο αναγνωρισμένη μάρκα και όχι τη νέα που φέρει το όνομα δημοφιλούς προσώπου.
description: The need for optics is high today and is expected to increase even more. The competition in this area is quite high. At the same time, the consumers’ behavior of optical products is complex and influenced by social, cultural, personal and psychological factors. In this context, primary quantitative research is carried out in order to investigate the consumer behavior of optical products. A structured questionnaire was distributed to a sample of 101 consumers. The main results showed that they are influenced mainly by social, personal and psychological factors and less by cultural ones, the influence of which is located in the age group and in the opinion of other people with common beliefs. Women and those with low incomes are affected by the family. All the characteristics of the product are taken into account in the decision, with the main role being played by the price. In addition, consumers of optics go through quite a few steps of the buying decision, especially recognizing the need and are not loyal to a particular brand, but prefer to try many different ones. However, in case of a dilemma, they would choose the most recognized brand and not the new one that bears the name of a popular person.
Υπολογιστικές μέθοδοι στον διακρανιακό μαγνητικό ερεθισμό
Creators: name: Ρούνη, Μαρία Αναστασία Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Διακρανιακός μαγνητικός ερεθισμός
Ηλεκτροεγκεφαλογράφημα
Ανάλυση ευαισθησίας
Transcranial magnetic stimulation
Electroencephalogram
Sensitivity analysis

description: Η εργασία αφορά την προσομοίωση μιας μη επεμβατικής μεθόδου ερεθισμού του εγκεφάλου, τον διακρανιακό μαγνητικό ερεθισμό (TMS), που συμβαίνει μέσω του επαγόμενου ηλεκτρικού πεδίου στον εγκέφαλο, όταν αυτός έρχεται σε κοντινή απόσταση με πηνίο που διαρρέεται από μεταβαλλόμενο ηλεκτρικό ρεύμα. Η διαδρομή που ακολουθείται ξεκινά από τους νευρώνες και τα ηλεκτρικά σήματα και συνεχίζει με την λήψη και την ανάγνωσή τους μέσω του εγκεφαλογραφήματος (EEG). Περιγράφεται κατόπιν η διαδικασία τρισδιάστατης μοντελοποίησης ενός ανθρώπινου κεφαλιού μέσω αλγορίθμων κατάτμησης όπως αυτό απεικονίζεται λεπτομερώς σε μια μαγνητική τομογραφία (MRI) και τελικά μέσω προσομοιώσεων και in silico πειράματος, διερευνάται η ευαισθησία που εισάγει στον τελικό ερεθισμό μια ενδεχόμενη ανακριβής τοποθέτηση του πηνίου κατά την κλινική πρακτική, καθώς και η ευαισθησία που εισάγει η διακύμανση της ηλεκτρικής αγωγιμότητας των ιστών του κεφαλιού. Η έκφραση της ευαισθησίας γίνεται με όρους στατιστικού σφάλματος στην τιμή του ηλεκτρικού πεδίου σε κάθε περίπτωση αλλά και με όρους επιτυχημένου ερεθισμού όπως αυτός αποτυπώνεται συνδυάζοντας την μέθοδο TMS με το EEG.
description: Transcranial Magnetic Stimulation (TMS) is a non-invasive method of brain stimulation. We examine the role of a possible displacement of the coil (H7 coil) during an actual TMS session, as well as the sensitivity of the resulting induced electric field on the brain, due to the variation of the tissues electrical conductivity. We start with a brief description of the neuronal activity and the main aspects of electroencephalogram (EEG), as a way to read the effects of brain stimulation. Usage of various Image segmentation methods lead to an actual 3D human head model as it is acquired from an MR image and finally a session of dTMS in being solved numerically while a magneto-static approximation is chosen in Sim4Life simulation software. Sensitivity analysis is being demonstrated as the normalized root of the mean squared error in the induced electric field and successful stimulation is measured using a computational analog of the combined TMS-EEG method.