cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Non-commutative Geometry Modified Non-Gaussianities of Cosmological Perturbation
Creators: name: Fang, Kejie
name: Chen, Bin
name: Xue, Wei
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the noncommutative effect on the non-Gaussianities of primordial cosmological perturbation. In the lowest order of string length and slow-roll parameter, we find that in the models with small speed of sound the noncommutative modifications could be observable if assuming a relatively low string scale. In particular, the dominant modification of non-Gaussianity estimator f_{NL} could reach O(1) in DBI inflation and K-inflation. The corrections are sensitive to the speed of sound and the choice of string length scale. Moreover the shapes of the corrected non-Gaussianities are distinct from that of ordinary ones.
description: 26 pages, 3 figures Added references, changed content
How Mergers May Affect The Mass Scaling Relations Between Black Holes, Galaxies, and Other Gravitationally Bound Systems
Creators: name: Peng, Chien Y.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Supermassive black hole (BH) masses (MBH) are strongly correlated with galaxy stellar bulge masses (Mbulge) and there are several ideas to explain the origin of this relationship. This study isolates the role of galaxy mergers from considerations of other detailed physics to more clearly show how a linear BH-galaxy mass relation (MBH-Mgal) can naturally emerge regardless of how primordial BHs were seeded inside galaxies, if the galaxy mass function declines with increasing mass. Under this circumstance, the MBH-Mgal relation is a passive attractor that eventually converges to a tight linear relation because of two basic statistical effects: a central limit-like tendency for galaxy mergers which is much stronger for major mergers than minor mergers, and a convergence toward a linear relation that is due mainly to minor mergers. A curious consequence of this thought experiment is that, if galaxy bulges are formed by major mergers, then merging statistics naturally show that MBH would correlate more strongly with bulge dominated galaxies, because of stronger central-seeking tendencies, than with disk dominated galaxies. Even if some other physics is ultimately responsible for causing a linear MBH-Mbulge relationship, this thought experiment shows that, counter to intuition, random merging of galaxies that harbor random BH masses tends to strengthen rather than weaken a pre-existing, linear, correlation. This idea may be generalized to other gravitationally bound systems (dark matter halo, compact nuclear objects) that retain their physical identities after experiencing mergers.
description: 10 pages, 8 figures, ApJ in press, includes ApJ corrections
Use of a 60cm pilot plant for scale-up of semi-autogenous grinding mills
Creators: name: Corrigan, Declan Brendan
Publisher: name: University of British Columbia
Year: 2010

description: Design Data for sizing full scale Autogenous or Semi-Autogenous mills is typically obtained from pilot plant tests in 1.5 to 2.0m diameter mills. These tests are expensive and time consuming. Attempts have been made to devise small-scale tests which would be faster, cost less, and require smaller samples. Some success has been achieved using a 45 cm diameter mill. A 60 cm wet continuous SAG circuit located in the Mining and Mineral Process Engineering Department of UBC, is being used to examine the correlation between full-scale and small-scale performance. To date testwork has been conducted on samples from four operating copper mines in B.C., and one gold property in Alaska. Equipment and test procedures are described. Data obtained to date are presented and analysed. It is concluded that the circuit can be of use in testing ores to determine SAG mill design parameters. However, additional data is required and experimentation with different circuit configurations should be attempted. The addition of a secondary ball mill to the circuit would be of benefit.
Observation of Electromagnetically Induced Transparency for a Squeezed Vacuum with the Time Domain Method
Creators: name: Arikawa, M.
name: Honda, K.
name: Akamatsu, D.
name: Yokoi, Y.
name: Akiba, K.
name: Nagatsuka, S.
name: Furusawa, A.
name: Kozuma, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A probe light in a squeezed vacuum state was injected into cold 87 $Rb atoms with an intense control light in a coherent state. A sub-MHz window was created due to electromagnetically induced transparency, and the incident squeezed vacuum could pass through the cold atoms without optical loss, as was successfully monitored using a time-domain homodyne method.
Performance of Michigan sMDT Prototype Chambers for the HL-LHC ATLAS Muon Detector Upgrade
Creators: name: Nelson, Kevin
name: Guo, Yuxiang
name: Amidei, Dante
name: Diehl, Edward
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A new small-diameter Monitored Drift Tube (sMDT) chamber has been developed for the muon spectrometer of the ATLAS experiment to handle the higher collision rates expected at the CERN High Luminosity Large Hadron Collider (HL-LHC). This paper presents measurements of the tracking resolution and hit efficiency of two prototype sMDT chambers constructed at the University of Michigan. Using cosmic-ray muons the sMDT tracking resolution of 103.7$\pm8.1$ \textmu m was measured for one chamber and 101.8$\pm$7.8 \textmu m for the other, compared with a design resolution of 106 \textmu m. A further tracking resolution improvement to 83.4$\pm$7.8 \textmu m was obtained by using new high-gain readout electronics which will be added for HL-LHC. An average tracking efficiency of (98.5$\pm$0.2)\% was found for both chambers. The methodology used to determine the detector tracking resolution and efficiency, including reconstruction of sMDT data and a Geant4 simulation of the test chamber, is presented in detail.
description: 23 pages, 20 figures
Analycity and smoothing effect for the coupled system of equations of Korteweg - de Vries type with a single point singularity
Creators: name: Sepulveda, Mauricio
name: Vera, Octavio
Publisher: name: arXiv
Year: 2007
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q53, 47J35

description: We study that a solution of the initial value problem associated for the coupled system of equations of Korteweg - de Vries type which appears as a model to describe the strong interaction of weakly nonlinear long waves, has analyticity in time and smoothing effect up to real analyticity if the initial data only has a single point singularity at $x=0.$
Additional file 4 of From Bowen disease to cutaneous squamous cell carcinoma: eight markers were verified from transcriptomic and proteomic analyses
Creators: name: Biao, Tang
name: Cai-feng, He
name: Xiao-hong, Lu
name: Xiao-li, Chang
name: Wen-bei, Liu
name: Jun, Wang
name: Chao, Ci
name: Tao, Yuan
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 4: Figure. S1. a. A total of 246 proteins were up-regulated and 154 proteins were down-regulated in the Bowen disease relative to the healthy control. These differentially expressed proteins were categorized in 3 biological function types terms (MF, CC and BP). The top 8 significantly enriched molecular function (MF) terms, 8 significantly enriched cellular component (CC) terms and 14 significantly enriched biological process (BP) terms are presented. The y-axis denotes the categories of GO terms.
GUT-scale constrained SUSY in light of E989 muon g-2 measurement
Creators: name: Wang, Fei
name: Wu, Lei
name: Xiao, Yang
name: Yang, Jin Min
name: Zhang, Yang
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The new FNAL result of the muon $g-2$, combined with the BNL result, shows a 4.2$σ$ deviation from the SM. We use the new data of the muon $g-2$ to revisit several GUT-scale constrained SUSY models with the constraints from the LHC searches, the dark matter detection, the flavor data and the electroweak vacuum stability. We first demonstrate the tension between the muon $g-2$ and other experimental measurements in the CMSSM/mSUGRA. Then after discussing the possible ways to alleviate such a tension and showing the muon $g-2$ in pMSSM under relevant experimental constraints, we survey several extensions of the CMSSM/mSUGRA with different types of universal boundary conditions at the GUT scale. Finally, we briefly discuss the muon $g-2$ in other popular SUSY breaking mechanisms, namely the GMSB and AMSB mechanisms and their extensions.
description: 24 pages, 4 figures, matches published version
Η νομισματική κυκλοφορία στο Δίον ως τους χρόνους του Αυγούστου
Creators: name: Παυλοπούλου, Ευαγγελία Γρ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: Δίον
Νομισματική κυκλοφορία
Κλασσικοί/ελληνιστικοί/πρώιμοι ρωμαϊκοί χρόνοι
Νομίσματα
Dion
Numismatic Circulation
Classical/Hellenistic/Early Roman Period
Coins

description: Η παρούσα εργασία πραγματεύεται τη νομισματική κυκλοφορία στο Δίον από τις αρχές του 5ου αι. π.Χ. ως τους χρόνους του Αυγούστου και την ίδρυση της ρωμαϊκής αποικίας στο Δίον. Περιλαμβάνει τα νομίσματα που έχουν βρεθεί κατά τις ανασκαφές στην ιερή πόλη των Μακεδόνων από το 1963 ως το 2013, τα οποία προέρχονται από την περιοχή των ιερών, την πόλη, τη νεκρόπολη και από περισυλλογές από τον αρχαιολογικό χώρο. Τα νομίσματα χωρίζονται στο τοπικό νόμισμα, το οποίο αποτελείται από τα νομίσματα των Μακεδόνων βασιλέων (από τον Αλέξανδρο Α΄ ως τον Περσέα), τα νομίσματα της Αφύτιος, της Ουρανουπόλεως, της Πύδνας, των Φιλίππων, τα νομίσματα στο όνομα των Μακεδόνων, των Βοττεατών, του Γαΐου Ποπλιλίου, των τριών πόλεων Αμφιπόλεως, Θεσσαλονίκης, Πέλλης και της Κασσανδρείας και στο επείσακτο νόμισμα, όπου εντάσσονται τα νομίσματα των άλλων ηγεμόνων που βρέθηκαν στο Δίον όπως και τα νομίσματα πόλεων και Κοινών δεκατεσσάρων γεωγραφικών περιοχών. Το νομισματικό υλικό συμπληρώνουν τα νομίσματα της Ρωμαϊκής Δημοκρατίας και οι τέσσερις θησαυροί κλασικών και ελληνιστικών χρόνων. Ακολουθεί η ταύτιση τριών νέων τύπων νομισμάτων και η απόδοσή τους σε νομισματοκοπεία, καθώς και στατιστικές και συγκριτικές μελέτες του υλικού του Δίου με το δημοσιευμένο από την Μακεδονία, ενώ σχολιάζεται και η νομισματική κυκλοφορία στο Δίον, αναζητώνται δηλαδή οι λόγοι, οι τρόποι, κάτω από ποιες συνθήκες και με ποια μέσα έφθασαν τα νομίσματα στο Δίον.
description: In this thesis is being discussed the numismatic circulation at Dion, from the beginning of the 5th century BC until the years of the Augustus and the foundation of the roman colony. The coins belong to two categories, the local coinage, the coinage of Macedonia (Kings, cities, ethnos) and the foreign coinage, the coinage of non-macedonian rulers and cities. Moreover, there are coins of Roman Republic and four hoards. Three new types of coins were identified.
Additional file 8 of From Bowen disease to cutaneous squamous cell carcinoma: eight markers were verified from transcriptomic and proteomic analyses
Creators: name: Biao, Tang
name: Cai-feng, He
name: Xiao-hong, Lu
name: Xiao-li, Chang
name: Wen-bei, Liu
name: Jun, Wang
name: Chao, Ci
name: Tao, Yuan
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 8. The protocols for biological function experiments.
Geotechnical design of the McLellan Mine, Lynn Lake, Manitoba
Creators: name: Rotzien, Joey Lou
Publisher: name: University of British Columbia
Year: 2010

description: The overall objective of any geotechnical mine design procedure must be to maximize the extraction of the ore reserves while maintaining the integrity of the working areas. At the McLellan Mine the cut-and-fill mining method was first adopted. This decision was made for flexibility in the size and shape of the mine openings to allow for the variability in width and grade of the ore zone. As a result the geotechnical design of the cut-and-fill stopes necessitated investigations to evaluate the character of the rock mass with regard to the hydrogeology, lithology, structural geology, rock strength and rock mass ratings at the site and to assess the in-situ stress conditions. In addition, the character of the backfill material had to be estimated prior to detailed testing. Based upon these parameters two dimensional finite element analyses were completed, the sill pillar and the two stopes were designed. Finally, remedial rock reinforcement was recommended for suspected unstable spans.
Boost invariant marginally trapped surfaces in Minkowski 4-space
Creators: name: Haesen, Stefan
name: Ortega, Miguel
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The extremal and partly marginally trapped surfaces in Minkowski 4-space, which are invariant under the group of boost isometries, are classified. Moreover, it is shown that there do not exist extremal surfaces of this kind with constant Gaussian curvature. A procedure is given in order to construct a partly marginally trapped surface by gluing two marginally trapped surfaces which are invariant under the group of boost isometries. As an application, a proper star-surface is constructed.
description: 13 pages, comment added in section 2
Novel investigation methods in Computational Social Dynamics and Complex Systems
Creators: name: Gravino, Pietro <1984>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2015
Subjects: FIS/02 Fisica teorica, modelli e metodi matematici

description: In this thesis the evolution of the techno-social systems analysis methods will be reported, through the explanation of the various research experience directly faced. The first case presented is a research based on data mining of a dataset of words association named Human Brain Cloud: validation will be faced and, also through a non-trivial modeling, a better understanding of language properties will be presented. Then, a real complex system experiment will be introduced: the WideNoise experiment in the context of the EveryAware european project. The project and the experiment course will be illustrated and data analysis will be displayed. Then the Experimental Tribe platform for social computation will be introduced . It has been conceived to help researchers in the implementation of web experiments, and aims also to catalyze the cumulative growth of experimental methodologies and the standardization of tools cited above. In the last part, three other research experience which already took place on the Experimental Tribe platform will be discussed in detail, from the design of the experiment to the analysis of the results and, eventually, to the modeling of the systems involved. The experiments are: CityRace, about the measurement of human traffic-facing strategies; laPENSOcosì, aiming to unveil the political opinion structure; AirProbe, implemented again in the EveryAware project framework, which consisted in monitoring air quality opinion shift of a community informed about local air pollution.
At the end, the evolution of the technosocial systems investigation methods shall emerge together with the opportunities and the threats offered by this new scientific path.
Deflection angle with electromagnetic interaction and gravitational-electromagnetic dual lensing
Creators: name: Xu, Xiaoge
name: Jiang, Tingyuan
name: Jia, Junji
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The trajectory deflection and gravitational-electromagnetic dual lensing (GEL) of charged signal in general charged static and spherically symmetric spacetimes are considered in this work. We showed that the perturbative approach previously developed for neutral particles can be extended to the electromagnetic interaction case. The deflection angle still takes a (quasi-)series form and the finite distance effect of both the source and observer can be taken into account. Comparing to pure gravitational case, the apparent angles of the images in the GEL, their magnifications and time delay all receive the electromagnetic corrections starting from the first non-trivial order. The sign and relative size of the leading corrections are determined by $\sim \frac{Q}{M}\frac{q}{E}$ where $M,~Q,~q,~E$ are the spacetime mass and charge, and signal particle charge and energy respectively. It is found that for $qQ>0$ (or $<0$), the electromagnetic interaction will decrease (or increase) the deflection angle, and in GEL the impact parameters, apparent angles, magnifications and total travel time for each image. The time delay is increased for small $β$ and $qQ>0$, and otherwise always increased regardless the sign of $qQ$. The results are then applied to the deflection and GEL of charged protons in cosmic rays in Reissner-Nordstrom, charged dilaton and charged Horndeski spacetimes.
description: 16 pages, 6 figures, 1 table; to appear in JCAP
Reinforcement learning of rare diffusive dynamics
Creators: name: Das, Avishek
name: Rose, Dominic C.
name: Garrahan, Juan P.
name: Limmer, David T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Machine Learning (cs.LG)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We present a method to probe rare molecular dynamics trajectories directly using reinforcement learning. We consider trajectories that are conditioned to transition between regions of configuration space in finite time, like those relevant in the study of reactive events, as well as trajectories exhibiting rare fluctuations of time-integrated quantities in the long time limit, like those relevant in the calculation of large deviation functions. In both cases, reinforcement learning techniques are used to optimize an added force that minimizes the Kullback-Leibler divergence between the conditioned trajectory ensemble and a driven one. Under the optimized added force, the system evolves the rare fluctuation as a typical one, affording a variational estimate of its likelihood in the original trajectory ensemble. Low variance gradients employing value functions are proposed to increase the convergence of the optimal force. The method we develop employing these gradients leads to efficient and accurate estimates of both the optimal force and the likelihood of the rare event for a variety of model systems.
description: 23 pages, 8 figures
Semi-secretly interacting ALP as an explanation of Fermilab muon $g-2$ measurement
Creators: name: Brdar, Vedran
name: Jana, Sudip
name: Kubo, Jisuke
name: Lindner, Manfred
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The muon anomalous magnetic moment measurement has, for more than a decade, been a long-standing anomaly hinting the physics beyond the Standard Model (BSM). The recently announced results from muon $g-2$ collaboration, corresponding to 3.3$σ$ deviation from Standard Model value (4.2$σ$ in combination with previous measurement) are strengthening the need for new physics coupled to muons. In this letter, we propose a novel scenario in which Standard Model (SM) is augmented by an axion-like particle (ALP) and vector-like fermions. We find that such a model admits an excellent interpretation of recent muon $g-2$ measurement through quantum process featuring ALP interacting with muons and newly introduced fermions. Previously proposed explanations with ALPs utilize interactions with photons and/or SM fermions. Therefore, in this letter we complement and extend such scenarios. We also discuss collider prospects for the model as well as the possibility that ALP is long lived or stable dark matter (DM) candidate.
description: 5 pages, 5 figures, matches version accepted for publication in PLB
Smoothing properties for the higher order nonlinear Schrödinger equation with constant coefficients
Creators: name: Sepulveda, Mauricio
name: Vera, Octavio
Publisher: name: arXiv
Year: 2007
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q53, 47J35

description: We study local and global existence and smoothing properties for the initial value problem associated to a higher order nonlinear Schrödinger equation with constant coefficients which appears as a model for propagation of pulse in optical fiber.
Size-Dependence of the Wavefunction of Self-Assembled Quantum Dots
Creators: name: Johansen, J.
name: Stobbe, S.
name: Nikolaev, I. S.
name: Lund-Hansen, T.
name: Kristensen, P. T.
name: Hvam, J. M.
name: Vos, W. L.
name: Lodahl, P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The radiative and non-radiative decay rates of InAs quantum dots are measured by controlling the local density of optical states near an interface. From time-resolved measurements we extract the oscillator strength and the quantum efficiency and their dependence on emission energy. From our results and a theoretical model we determine the striking dependence of the overlap of the electron and hole wavefunctions on the quantum dot size. We conclude that the optical quality is best for large quantum dots, which is important in order to optimally tailor quantum dot emitters for, e.g., quantum electrodynamics experiments.
description: 5 pages, 3 figures
Resonant and non-resonant relaxation of globular clusters
Creators: name: Fouvry, Jean-Baptiste
name: Hamilton, Chris
name: Rozier, Simon
name: Pichon, Christophe
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Globular clusters contain a finite number of stars. As a result, they inevitably undergo secular evolution (`relaxation') causing their mean distribution function (DF) to evolve on long timescales. On one hand, this long-term evolution may be interpreted as driven by the accumulation of local deflections along each star's mean field trajectory -- so-called `non-resonant relaxation'. On the other hand, it can be thought of as driven by non-local, collectively dressed and resonant couplings between stellar orbits, a process termed `resonant relaxation'. In this paper we consider a model globular cluster represented by a spherical, isotropic isochrone DF, and compare in detail the predictions of both resonant and non-resonant relaxation theories against tailored direct $N$-body simulations. In the space of orbital actions (namely the radial action and total angular momentum), we find that both resonant and non-resonant theories predict the correct morphology for the secular evolution of the cluster's DF, although non-resonant theory over-estimates the amplitude of the relaxation rate by a factor ${\sim 2}$. We conclude that the secular relaxation of hot isotropic spherical clusters is not dominated by collectively amplified large-scale potential fluctuations, despite the existence of a strong ${\ell = 1}$ damped mode. Instead, collective amplification affects relaxation only marginally even on the largest scales. The predicted contributions to relaxation from smaller scale fluctuations are essentially the same from resonant and non-resonant theories.
description: 26 pages, 14 figures, submitted to MNRAS
Moiré skyrmions and chiral magnetic phases in twisted CrX$_{3}$ (X $=$ I, Br, Cl) bilayers
Creators: name: Akram, Muhammad
name: LaBollita, Harrison
name: Dey, Dibyendu
name: Kapeghian, Jesse
name: Erten, Onur
name: Botana, Antia S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a comprehensive theory of the magnetic phases in twisted bilayer Cr-trihalides through a combination of first-principles calculations and atomistic simulations. We show that the stacking-dependent interlayer exchange leads to an effective moiré field that is mostly ferromagnetic with antiferromagnetic patches. A wide range of noncollinear magnetic phases can be stabilized as a function of the twist angle and Dzyaloshinskii-Moriya interaction as a result of the competing interlayer antiferromagnetic coupling and the energy cost for forming domain walls. In particular, we demonstrate that for small twist angles various skyrmion crystal phases can be stabilized in both CrI$_3$ and CrBr$_3$. Our results provide an interpretation for the recent observation of noncollinear magnetic phases in twisted bilayer CrI$_3$ and demonstrate the possibility of engineering further nontrivial magnetic ground states in twisted bilayer Cr-trihalides.
Additional file 2 of From Bowen disease to cutaneous squamous cell carcinoma: eight markers were verified from transcriptomic and proteomic analyses
Creators: name: Biao, Tang
name: Cai-feng, He
name: Xiao-hong, Lu
name: Xiao-li, Chang
name: Wen-bei, Liu
name: Jun, Wang
name: Chao, Ci
name: Tao, Yuan
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2: Table S2. The significantly enriched 8 KEGG pathways based on the differentially expressed proteins.
A Fully Spiking Hybrid Neural Network for Energy-Efficient Object Detection
Creators: name: Chakraborty, Biswadeep
name: She, Xueyuan
name: Mukhopadhyay, Saibal
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper proposes a Fully Spiking Hybrid Neural Network (FSHNN) for energy-efficient and robust object detection in resource-constrained platforms. The network architecture is based on Convolutional SNN using leaky-integrate-fire neuron models. The model combines unsupervised Spike Time-Dependent Plasticity (STDP) learning with back-propagation (STBP) learning methods and also uses Monte Carlo Dropout to get an estimate of the uncertainty error. FSHNN provides better accuracy compared to DNN based object detectors while being 150X energy-efficient. It also outperforms these object detectors, when subjected to noisy input data and less labeled training data with a lower uncertainty error.
description: 10 pages, Submitted Manuscript
Optimized Runge-Kutta Methods with Automatic Step Size Control for Compressible Computational Fluid Dynamics
Creators: name: Ranocha, Hendrik
name: Dalcin, Lisandro
name: Parsani, Matteo
name: Ketcheson, David I.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 65L06, 65M20, 65M70, 76M10, 76M22, 76N99, 35L50

description: We develop error-control based time integration algorithms for compressible fluid dynamics (CFD) applications and show that they are efficient and robust in both the accuracy-limited and stability-limited regime. Focusing on discontinuous spectral element semidiscretizations, we design new controllers for existing methods and for some new embedded Runge-Kutta pairs. We demonstrate the importance of choosing adequate controller parameters and provide a means to obtain these in practice. We compare a wide range of error-control-based methods, along with the common approach in which step size control is based on the Courant-Friedrichs-Lewy (CFL) number. The optimized methods give improved performance and naturally adopt a step size close to the maximum stable CFL number at loose tolerances, while additionally providing control of the temporal error at tighter tolerances. The numerical examples include challenging industrial CFD applications.
Double spin asymmetry in exclusive rho^0 muoproduction at COMPASS
Creators: name: COMPASS Collaboration
name: Alekseev, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The longitudinal double spin asymmetry A_1^rho for exclusive leptoproduction of rho^0 mesons, mu + N -> mu + N + rho, is studied using the COMPASS 2002 and 2003 data. The measured reaction is incoherent exclusive rho^0 production on polarised deuterons. The Q^2 and x dependence of A_1^rho is presented in a wide kinematical range: 3x10^-3 < Q^2 < 7 (GeV/c)^2 and 5x10^-5 < x < 0.05. The presented results are the first measurements of A_1^rho at small Q2 (Q2 < 0.1 (GeV/c)^2) and small x (x < 3x10^-3). The asymmetry is in general compatible with zero in the whole kinematical range.
description: 6 Figures, 15 pages, version 2 with updated author list, technical latex problem fixed
High purity bright single photon source
Creators: name: Neergaard-Nielsen, J. S.
name: Nielsen, B. Melholt
name: Takahashi, H.
name: Vistnes, A. I.
name: Polzik, E. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Using cavity-enhanced non-degenerate parametric downconversion, we have built a frequency tunable source of heralded single photons with a narrow bandwidth of 8 MHz, making it compatible with atomic quantum memories. The photon state is 70% pure single photon as characterized by a tomographic measurement and reconstruction of the quantum state, revealing a clearly negative Wigner function. Furthermore, it has a spectral brightness of ~1,500 photons/s per MHz bandwidth, making it one of the brightest single photon sources available. We also investigate the correlation function of the down-converted fields using a combination of two very distinct detection methods; photon counting and homodyne measurement.
description: 9 pages, 4 figures; minor changes, added reference
Non-Degenerate Two-Photon Absorption in ZnSe: Experiment and Theory
Creators: name: Krauss-Kodytek, L.
name: Hannes, W. -R.
name: Meier, T.
name: Ruppert, C.
name: Betz, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We experimentally and theoretically investigate the non-degenerate two-photon absorption coefficient $β(ω_1,ω_2)$ in the prototypical semiconductor ZnSe. In particular, we provide a comprehensive data set on the dependence of $β(ω_1,ω_2)$ on the non-degeneracy parameter $ω_1/ω_2$ with the total frequency sum $ω_1+ω_2$ kept constant. We find a substantial increase of the two-photon absorption strength with increasing $ω_1/ω_2$. In addition, different crystallographic orientations and polarization configurations are investigated. The nonlinear optical response is analyzed theoretically by evaluating the multiband semiconductor Bloch equations including inter- and intraband excitations in the length gauge. The band structure and the matrix elements are taken an eight-band k.p model. The simulation results are in very good agreement with the experiment.
description: 6 pages, 5 figures
Finite density effects in gauge theories
Creators: name: Roberge, André
Publisher: name: University of British Columbia
Year: 2010

description: Various effects of finite fermionic densities in gauge theories are studied. The phase structure of SU(N) gauge theories with fermions as a function of imaginary chemical potential is related to the confining properties of the theory. This phase structure is controlled by a remnant of the Z[sub N] symmetry which is present in the absence of fermions. At high temperature the theory has a first-order phase transition as a function of imaginary chemical potential. This transition is expected to be absent in the low-temperature phase. It is shown that properties of the theory at nonzero fermion density can be deduced from its behaviour at finite imaginary chemical potential. Anomalies in gauge theories are introduced using various two-dimensional models. In particular, the chiral Schwinger model is shown to be consistent despite being anomalous. The effects of finite densities in anomalous gauge theories is investigated. It is found that, contrary to some recent claims, an effective Harniltonian (obtained by integrating out the fermions) cannot be obtained by the simple inclusion of a Chern-Simons term multiplying the fermionic chemical potential. The importance of dynamical effects is stressed and a mechanism for producing primordial magnetic field is suggested.
On global solution to the Klein-Gordon-Hartree equation below energy space
Creators: name: Miao, Changxing
name: Zhang, Junyong
Publisher: name: arXiv
Year: 2007
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35Q40, 35Q55, 47J35

description: In this paper, we consider the Cauchy problem for Klein-Gordon equation with a cubic convolution nonlinearity in $\R^3$. By making use of Bourgain's method in conjunction with a precise Strichartz estimate of S.Klainerman and D.Tataru, we establish the $H^s (s<1)$ global well-posedness of the Cauchy problem for the cubic convolution defocusing Klein-Gordon-Hartree equation. Before arriving at the previously discussed conclusion, we obtain global solution for this non-scaling equation with small initial data in $H^{s_0}\times H^{s_0-1}$ where $s_0=\fracγ6$ but not $\frac\gamma2-1$, for this equation that we consider is a subconformal equation in some sense. In doing so a number of nonlinear prior estimates are already established by using Bony's decomposition, flexibility of Klein-Gordon admissible pairs which are slightly different from that of wave equation and a commutator estimate. We establish this commutator estimate by exploiting cancellation property and utilizing Coifman and Meyer multilinear multiplier theorem. As far as we know, it seems that this is the first result on low regularity for this Klein-Gordon-Hartree equation.
description: 31 pages
A “Legal Eccentricity”: The European Parliament, its Non-binding Resolution, and the Legitimacy of the EU’s Trade Agreements
Creators: name: Hart, Nina M.
Publisher: name: University of Bologna Law Review
Year: 2021

description: The European Union is pursuing an ambitious trade agenda despite the increased controversy over the negotiating process and substance of trade agreements. This controversy raises questions about the legitimacy of trade agreements, as Cecilia Malmström, former European Commissioner for Trade, has acknowledged. This paper seeks to evaluate the legitimacy of the EU’s agreements, with a focus on the role of the European Parliament as a legitimating actor, given its position as the democratic representative of the public. It argues that the Treaties do not provide for sufficient legitimacy and then considers whether Parliament has been able to use its informal governance tools, particularly the non-binding resolution, to narrow the legitimacy deficit.
description: University of Bologna Law Review, Vol. 5 No. 2 (2020)
Comments on Foliated Gauge Theories and Dualities in 3+1d
Creators: name: Hsin, Po-Shen
name: Slagle, Kevin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the properties of foliated gauge fields and construct several foliated field theories in 3+1d that describe foliated fracton orders both with and without matter, including the recent hybrid fracton models. These field theories describe Abelian or non-Abelian gauge theories coupled to foliated gauge fields, and they fall into two classes of models that we call the electric models and the magnetic models. We show that these two classes of foliated field theories enjoy a duality. We also construct a model (using foliated gauge fields and an exactly solvable lattice Hamiltonian model) for a subsystem-symmetry protected topological (SSPT) phase, which is analogous to a one-form symmetry protected topological phase, with the subsystem symmetry acting on codimension-two subregions. We construct the corresponding gauged SSPT phase as a foliated two-form gauge theory. Some instances of the gauged SSPT phase are a variant of the X-cube model with the same ground state degeneracy and the same fusion, but different particle statistics.
description: 57+10 pages, 7+1 figures, 2 tables
Parameter estimation for power-law distributions by maximum likelihood methods
Creators: name: Bauke, Heiko
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Distributions following a power-law are an ubiquitous phenomenon. Methods for determining the exponent of a power-law tail by graphical means are often used in practice but are intrinsically unreliable. Maximum likelihood estimators for the exponent are a mathematically sound alternative to graphical methods.
description: Supplementary software: http://www.physics.ox.ac.uk/users/bauke/Publications/index.html#powerlaws
On the energy spectrum of the one-dimensional Klein-Gordon Oscillator
Creators: name: Rao, Nagalakshmi A
name: Kagali, B. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In the present article, we describe a method of introducing the harmonic potential into the Klein-Gordon equation, leading to genuine bound states. The eigenfunctions and eigenenergies are worked out explicitly.
description: Latex, 9 Pages, 1 Table, Added Reference
A Normalizing Intuitionistic Set Theory with Inaccessible Sets
Creators: name: Moczydlowski, Wojciech
Publisher: name: arXiv
Year: 2007
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: F.4.1

description: We propose a set theory strong enough to interpret powerful type theories underlying proof assistants such as LEGO and also possibly Coq, which at the same time enables program extraction from its constructive proofs. For this purpose, we axiomatize an impredicative constructive version of Zermelo-Fraenkel set theory IZF with Replacement and $ω$-many inaccessibles, which we call \izfio. Our axiomatization utilizes set terms, an inductive definition of inaccessible sets and the mutually recursive nature of equality and membership relations. It allows us to define a weakly-normalizing typed lambda calculus corresponding to proofs in \izfio according to the Curry-Howard isomorphism principle. We use realizability to prove the normalization theorem, which provides a basis for program extraction capability.
description: To be published in Logical Methods in Computer Science
Nflation: observable predictions from the random matrix mass spectrum
Creators: name: Kim, Soo A
name: Liddle, Andrew R
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We carry out numerical investigations of the perturbations in Nflation models where the mass spectrum is generated by random matrix theory. The tensor-to-scalar ratio and non-gaussianity are already known to take the single-field values, and so the density perturbation spectral index is the main parameter of interest. We study several types of random field initial conditions, and compute the spectral index as a function of mass spectrum parameters. Comparison with microwave anisotropy data from the Wilkinson Microwave Anisotropy Probe shows that the model is currently viable in the majority of its parameter space.
description: 5 pages RevTeX with 4 figures. Minor corrections to match version to appear in Physical Review D
Visual analytics of set data for knowledge discovery and member selection support
Creators: name: Watanabe, Ryuji
name: Ishibashi, Hideaki
name: Furukawa, Tetsuo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Visual analytics (VA) is a visually assisted exploratory analysis approach in which knowledge discovery is executed interactively between the user and system in a human-centered manner. The purpose of this study is to develop a method for the VA of set data aimed at supporting knowledge discovery and member selection. A typical target application is a visual support system for team analysis and member selection, by which users can analyze past teams and examine candidate lineups for new teams. Because there are several difficulties, such as the combinatorial explosion problem, developing a VA system of set data is challenging. In this study, we first define the requirements that the target system should satisfy and clarify the accompanying challenges. Then we propose a method for the VA of set data, which satisfies the requirements. The key idea is to model the generation process of sets and their outputs using a manifold network model. The proposed method visualizes the relevant factors as a set of topographic maps on which various information is visualized. Furthermore, using the topographic maps as a bidirectional interface, users can indicate their targets of interest in the system on these maps. We demonstrate the proposed method by applying it to basketball teams, and compare with a benchmark system for outcome prediction and lineup reconstruction tasks. Because the method can be adapted to individual application cases by extending the network structure, it can be a general method by which practical systems can be built.
description: This is accepted manuscript in Decision Support Systems. The codes of prototype system are available on https://github.com/furukawa-laboratory/demo-visual-analytics-set-data
From Global to Local Dynamics: Effects of the Expansion on Astrophysical Structures
Creators: name: Balaguera-Antolinez, A.
name: Nowakowski, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We explore the effects of background cosmology on large scale structures with non-spherical symmetry by using the concept of quasi-equilibrium which allows certain internal properties (e.g. angular velocity) of the bodies to change with time. In accordance with the discovery of the accelerated phase of the universe we model the cosmological background by two representative models: the $Λ$CDM Model and the Chaplygin Gas Model. We compare the effects of the two models on various properties of large astrophysical objects. Different equations of state are also invoked in the investigation.
description: References added To be published in CQG
การจำแนกกลุ่มคำถามอัตโนมัติบนกระดานสนทนาโดยใช้เทคนิคเหมืองข้อความ
Creators: name: ราชวิทย์ ทิพย์เสนา
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: การจำแนกข้อความ, กระดานสนทนา, เหมืองข้อความ, เทคนิคการหาเพื่อนบ้านใกล้ที่สุด, เทคนิคต้นไม้ตัดสินใจ, เทคนิคการเรียนรู้เบย์อย่างง่าย

description: 5, 33, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
Old open clusters in the inner Galaxy: FSR1744, FSR89 and FSR31
Creators: name: Bonatto, Charles
name: Bica, Eduardo
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We establish the nature and derive fundamental and structural parameters of the recently catalogued objects FSR1744, FSR89 and FSR31. This work intends to provide clues to constrain the Galactic tidal disruption efficiency, improve statistics of the open cluster parameter space, and better define their age-distribution function inside the Solar circle. Properties of the objects are investigated by means of 2MASS colour-magnitude diagrams and stellar radial density profiles built with field star decontaminated photometry. Diagnostic-diagrams for structural parameters are used to help disentangle dynamical from high-background effects affecting such centrally projected open clusters. FSR1744, FSR89 and FSR31 are Gyr-class OCs located at Galactocentric distances 4.0 - 5.6kpc. Compared to nearby OCs, they have small core and limiting radii. With respect to the small number of OCs observed in the inner Galaxy, the emerging scenario in the near-infrared favours disruption driven by dynamical evolution rather than observational limitations associated with absorption and/or high background levels. Internally, the main processes associated with the dynamical evolution are, e.g. mass loss by stellar evolution, mass segregation and evaporation. Externally they are, e.g. tidal stress from the disk and bulge, and interactions with giant molecular clouds. FSR1744, FSR89 and FSR31 have structural parameters consistent with their Galactocentric distances, in the sense that tidally induced effects may have accelerated the dynamical evolution.
description: 12 pages and 13 figs; A&A, accepted, July 9, 2007
Evidence for nonmonotonic magnetic field penetration in a type-I superconductor
Creators: name: Kozhevnikov, V. F.
name: Giuraniuc, C. V.
name: Van Bael, M. J.
name: Temst, K.
name: Van Haesendonck, C.
name: Mishonov, T. M.
name: Charlton, T.
name: Dalgliesh, R. M.
name: Khaidukov, Yu. N.
name: Nikitenko, Yu. V.
name: Aksenov, V. L.
name: Gladilin, V. N.
name: Fomin, V. M.
name: Devreese, J. T.
name: Indekeu, J. O.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Polarized neutron reflectometry (PNR) provides evidence that nonlocal electrodynamics governs the magnetic field penetration in an extreme low-k superconductor. The sample is an indium film with a large elastic mean free path (11 mkm) deposited on a silicon oxide wafer. It is shown that PNR can resolve the difference between the reflected neutron spin asymmetries predicted by the local and nonlocal theories of superconductivity. The experimental data support the nonlocal theory, which predicts a nonmonotonic decay of the magnetic field.
description: 5 pages, 4 figures, LaTex, corrected typos and figures