cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
No UV/IR Mixing in Unitary Space-Time Noncommutative Field Theory
Creators: name: Fischer, P.
name: Putz, V.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this article we calculate several divergent amplitudes in phi^4-theory on non-commutative space-time in the framework of Interaction Point Time Ordered Perturbation Theory (IPTOPT), continuing work done in hep-th/0209253. On the ground of these results we find corresponding Feynman rules which allow for a much easier diagrammatic calculation of amplitudes. The most important feature of the present theory is the lack of the UV/IR mixing problem in all amplitudes calculated so far. Although we are not yet able to give a rigorous proof, we provide a strong argument for this result to hold in general. Together with the found Feynman rules this opens promising vistas towards the systematic renormalization of non-commutative field theories.
description: 23 pages, uses package feynmf, v2: typos, added reference, minor improvements
Planar diagrams and Calabi-Yau spaces
Creators: name: Ferrari, Frank
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Large N geometric transitions and the Dijkgraaf-Vafa conjecture suggest a deep relationship between the sum over planar diagrams and Calabi-Yau threefolds. We explore this correspondence in details, explaining how to construct the Calabi-Yau for a large class of M-matrix models, and how the geometry encodes the correlators. We engineer in particular two-matrix theories with potentials W(X,Y) that reduce to arbitrary functions in the commutative limit. We apply the method to calculate all correlators and in models of the form W(X,Y)=V(X)+U(Y)-XY and W(X,Y)=V(X)+YU(Y^{2})+XY^{2}. The solution of the latter example was not known, but when U is a constant we are able to solve the loop equations, finding a precise match with the geometric approach. We also discuss special geometry in multi-matrix models, and we derive an important property, the entanglement of eigenvalues, governing the expansion around classical vacua for which the matrices do not commute.
description: 46 pages including 4 figures and 2 appendices
Expression of insulin-like growth factor-II, matrix metalloproteinases, and their tissue inhibitors as predictive markers in the peripheral blood of HCC patients
Creators: name: H.M. El Tayebi
name: W. Salah
name: I.H. El Sayed
name: A.R.N. Zekri
name: N. Zayed
name: E.S. Salem
name: G. Esmat
name: A.I. Abdelaziz
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences

description: Background/aim: Elevated relative expression of insulin-like growth factor-II (IGF-II) was observed in hepatocellular carcinoma (HCC) liver tissues with a role in neovascularization and associated with poor prognosis. IGF-II is influenced by the proteolytic cleavage of IGF-binding protein 3 and by matrix metalloproteinases (MMP), which are further regulated by their tissue inhibitors tissue inhibitor of metalloprotienase-1 (TIMP-1). Our aim is to study new molecular markers for HCC. Patients/methods: RNA was extracted from the peripheral blood for evaluating the relative expression of IGF-II, MMP-9, and TIMP-1 in correlation with clinical staging of 39 HCC patients and 15 healthy controls using TaqMan real-time PCR. Results: The relative expression of IGF-II and MMP-9 mRNA were significantly elevated in HCC patients compared with healthy controls; P-value <0.0001 for both. There was a significant correlation between MMP-9 and different HCC stages. On the other hand, TIMP-1 was significantly down-regulated in HCC patients; P = 0.0003 with the elevation of the IGF-II/TIMP-1 ratio. Significant correlation between TIMP-1 and HCC Stage III and Stage IV was found; P-value = 0.0138. Conclusion: These results highlight the importance of profiling the expression of IGF-II, MMP-9, and TIMP-1 in the peripheral blood as prognostic molecular biomarkers in HCC.
First-principles method to study near-field radiative heat transfer
Creators: name: Zhu, Tao
name: Zhang, Zu-Quan
name: Gao, Zhibin
name: Wang, Jian-Sheng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a general and convenient first principle method to study near-field radiative heat transfer. We show that the Landauer-like expression of heat flux can be expressed in terms of a frequency and wave-vector dependent macroscopic dielectric function which can be obtained from the linear response density functional theory. A random phase approximation is used to calculate the response function. We computed the heat transfer in three systems -- graphene, molybdenum disulfide (MoS$_2$), and hexagonal boron nitride (h-BN). Our results show that the near-field heat flux exceeds the blackbody limit up to four orders of magnitude. With the increase of the distances between two parallel sheets, a $1/d^2$ dependence of heat flux is shown, consistent with Coulomb's law. The heat transfer capacity is sensitive to the dielectric properties of materials. Influences from chemical potential and temperature are also discussed. Our method can be applied to a wide range of materials including systems with inhomogeneities.
description: 7 pages, 6 figures
Modeling of the Peeling Process of Pressure-sensitive Adhesive Tapes with the Combination of Maxwell Elements
Creators: name: Sato, Katsuhiko
name: Toda, Akihiko
Publisher: name: arXiv
Year: 2004
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: A simple model for the peeling process of pressure-sensitive adhesive tape is presented. The model consists of linear springs and dashpots and can be solved analytically. Based on the modeling, the curved profile of the peeling tape is spontaneously determined in terms of viscoelastic properties of adhesives. Using this model, two experimental results are discussed: critical peel rates in the peel force and the peel rate dependence of the detachment process of adhesive from the substrate.
description: 17 pages, 10 figures
Typhlodromips De Leon
Creators: name: De Moraes, Gilberto J.
name: Zannou, Ignace D.
name: Ueckermann, Eddie A.
name: Oliveira, Anibal R.
name: Hanna, Rachid
name: Yaninek, John S.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Mesostigmata
Phytoseiidae
Typhlodromips

description: Typhlodromips De Leon
 Typhlodromips De Leon, 1965: 23; Moraes et al., 2004: 205 (in part); Chant & McMurtry, 2005b: 323.
 Amblyseius (Typhlodromips), Wainstein, 1983: 313.
 Stable characters mentioned by Chant & McMurtry (2005b) for species of this genus are: sum of the ratios “length of dorsal shield/ length of S4” and “length of dorsal shield/ length of S5” larger than 26.0; dorsal shield with a constriction at level of R1; idiosomal setal pattern 10A:9B/JV-3:ZV (except Typhlodromips extrasetus Moraes, Oliveira & Zannou, 2001a, with setal pattern 10A:10B/JV-3:ZV; in this case, seta J1 present); dorsal setae (except Z5 and sometimes Z4) short or of medium length and subequal; seta z6 absent; setae z2 and z4 not longer than distances to bases of setae next behind; setae r3 and R1 of adult female never inserted on dorsal shield; peritreme extending forward to level of j1; with 3 pairs of sternal setae; 3 pairs of preanal setae, a pair of preanal pores; genua II and III with macrosetae. Males with 3 or 4 pairs of preanal setae.
Eight species of this genus were found in sub-Saharan Africa.
description: Published as part of De Moraes, Gilberto J., Zannou, Ignace D., Ueckermann, Eddie A., Oliveira, Anibal R., Hanna, Rachid & Yaninek, John S., 2007, Species of the subtribes Arrenoseiina and Proprioseiopsina (Tribe Amblyseiini) and the tribe Typhlodromipsini (Acari: Phytoseiidae) from sub-Saharan Africa, pp. 1-39 in Zootaxa 1448 (1) on pages 25-26, DOI: 10.11646/zootaxa.1448.1.1, http://zenodo.org/record/5077273
Quantum chaos and regularity in $Φ^4$ theory
Creators: name: Kroeger, Helmut
name: Luo, Xiang-Qian
name: Markum, Harald
name: Pullirsch, Rainer
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We check the eigenvalue spectrum of the $Φ^{4}_{1+1}$ Hamiltonian against Poisson or Wigner behavior predicted from random matrix theory. We discuss random matrix theory as a tool to discriminate the validity of a model Hamiltonian compared to an analytically solvable Hamiltonian or experimental data.
description: 3 pages, 6 figures,(eps), Lattice2003(Theory)
Maximizing the Bregman divergence from a Bregman family
Creators: name: Rauh, Johannes
name: Matúš, František
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences
subject: 94A17, 62B05, 62E15, 62E17, 52A41

description: The problem to maximize the information divergence from an exponential family is generalized to the setting of Bregman divergences and suitably defined Bregman families.
description: 11 pages, 5 theorems, no figure
title: 02_1570
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
The covariant entropy bound in gravitational collapse
Creators: name: Gao, Sijie
name: Lemos, Jose' P. S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the covariant entropy bound in the context of gravitational collapse. First, we discuss critically the heuristic arguments advanced by Bousso. Then we solve the problem through an exact model: a Tolman-Bondi dust shell collapsing into a Schwarzschild black hole. After the collapse, a new black hole with a larger mass is formed. The horizon, $L$, of the old black hole then terminates at the singularity. We show that the entropy crossing $L$ does not exceed a quarter of the area of the old horizon. Therefore, the covariant entropy bound is satisfied in this process.
description: 11 pages, 5 figures, a few minor changes
Predictions for the 21cm-galaxy cross-power spectrum observable with SKA and future galaxy surveys
Creators: name: Vrbanec, Dijana
name: Ciardi, Benedetta
name: Jelic, Vibor
name: Jensen, Hannes
name: Iliev, Ilian T.
name: Mellema, Garrelt
name: Zaroubi, Saleem
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In this paper we use radiative transfer + N-body simulations to explore the feasibility of measurements of cross-correlations between the 21cm field observed by the Square Kilometer Array (SKA) and high-z Lyman Alpha Emitters (LAEs) detected in galaxy surveys with the Subaru Hyper Supreme Cam (HSC), Subaru Prime Focus Spectrograph (PFS) and Wide Field Infrared Survey Telescope (WFIRST). 21cm-LAE cross-correlations are in fact a powerful probe of the epoch of reionization as they are expected to provide precious information on the progress of reionization and the typical scale of ionized regions at different redshifts. The next generation observations with SKA will have a noise level much lower than those with its precursor radio facilities, introducing a significant improvement in the measurement of the cross-correlations. We find that an SKA-HSC/PFS observation will allow to investigate scales below ~10 Mpc/h and ~60 Mpc/h at z=7.3 and 6.6, respectively. WFIRST will allow to access also higher redshifts, as it is expected to observe spectroscopically ~900 LAEs per square degree and unit redshift in the range 7.5
description: 8 pages, 8 figures, accepted for publication in MNRAS
Time ordered perturbation theory for non-local interactions; applications to NCQFT
Creators: name: Denk, Stefan
name: Schweda, Manfred
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the past decades, time ordered perturbation theory was very successful in describing relativistic scattering processes. It was developed for local quantum field theories. However, there are field theories which are governed by non-local interactions, for example non-commutative quantum field theory (NCQFT). Filk (Phys. Lett. B 376 (1996) 53) first studied NCQFT perturbatively obtaining the usual Feynman propagator and additional phase factors as the basic elements of perturbation theory. However, this treatment is only applicable for cases, where the deformation of space-time does not involve time. Thus, we generalize Filk's approach in two ways: First, we study non-local interactions of a very general type able to embed NCQFT. And second, we also include the case, where non-locality involves time. A few applications of the obtained formalism will also be discussed.
description: 21 pages, 2 figures
Study of Apical meristem and Anatomy of common weed Vernonia cinerea (L.) Less. from Sabarkantha District (Gujarat).pdf
Creators: name: TWJEAS. ORG
name: Purohit Aayushi, Y.
name: Patel Kaushik, C.
Publisher: name: figshare
Year: 2021
Subjects: Botany
Anatomy

description: ABSTRACT:
The present study deals with the anatomical study of the Vernonia cinerea (L.) Less.
Synonym is Cyanthillium cinereum (Carl Linnaeus) H. Rob. belonging to the family
Asteraceae, found in Sabarkantha district as a common weed in crop fields of Sabarkantha
district of Gujarat state. The anatomical study of vegetative parts like; leaf, stem and root
with the help of hand sectioning. Along with it, the study of Shoot Apical Meristem and
Root Apical Meristem by dissection.
Keywords: Weed, Anatomy, Apical meristem
Virial Coefficients of Multispecies Anyons
Creators: name: Mashkevich, Stefan
name: Myrheim, Jan
name: Olaussen, Kaare
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A path integral formalism for multispecies anyons is introduced, whereby partition functions are expressed in terms of generating functions of winding number probability distributions. In a certain approximation, the equation of state for exclusion statistics follows. By Monte Carlo simulation, third-order cluster and virial coefficients are found numerically.
description: 9 pages, 5 figures, LaTeX 2e
Analysis of Stochastic Gradient Descent in Continuous Time
Creators: name: Latz, Jonas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: Machine Learning (cs.LG)
subject: Numerical Analysis (math.NA)
subject: Computation (stat.CO)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 90C30, 60J25, 37A25, 65C40, 68W20

description: Stochastic gradient descent is an optimisation method that combines classical gradient descent with random subsampling within the target functional. In this work, we introduce the stochastic gradient process as a continuous-time representation of stochastic gradient descent. The stochastic gradient process is a dynamical system that is coupled with a continuous-time Markov process living on a finite state space. The dynamical system -- a gradient flow -- represents the gradient descent part, the process on the finite state space represents the random subsampling. Processes of this type are, for instance, used to model clonal populations in fluctuating environments. After introducing it, we study theoretical properties of the stochastic gradient process: We show that it converges weakly to the gradient flow with respect to the full target function, as the learning rate approaches zero. We give conditions under which the stochastic gradient process with constant learning rate is exponentially ergodic in the Wasserstein sense. Then we study the case, where the learning rate goes to zero sufficiently slowly and the single target functions are strongly convex. In this case, the process converges weakly to the point mass concentrated in the global minimum of the full target function; indicating consistency of the method. We conclude after a discussion of discretisation strategies for the stochastic gradient process and numerical experiments.
Finite-Element Discretization of Static Hamilton-Jacobi Equations Based on a Local Variational Principle
Creators: name: Bornemann, Folkmar
name: Rasch, Christian
Publisher: name: arXiv
Year: 2004
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65N30 (Primary) 35F30, 49L20, 49M05, 65N12, 65N22 (Secondary)

description: We propose a linear finite-element discretization of Dirichlet problems for static Hamilton-Jacobi equations on unstructured triangulations. The discretization is based on simplified localized Dirichlet problems that are solved by a local variational principle. It generalizes several approaches known in the literature and allows for a simple and transparent convergence theory. In this paper the resulting system of nonlinear equations is solved by an adaptive Gauss-Seidel iteration that is easily implemented and quite effective as a couple of numerical experiments show.
description: 19 pages
Typhlodromips extrasetus Moraes, Oliveira & Zannou
Creators: name: De Moraes, Gilberto J.
name: Zannou, Ignace D.
name: Ueckermann, Eddie A.
name: Oliveira, Anibal R.
name: Hanna, Rachid
name: Yaninek, John S.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Mesostigmata
Phytoseiidae
Typhlodromips
Typhlodromips extrasetus

description: Typhlodromips extrasetus Moraes, Oliveira & Zannou
 Typhlodromips extrasetus Moraes, Oliveira & Zannou, 2001a: 4; Moraes et al., 2004: 212; Chant & McMurtry, 2005b: 327.
 Remarks. This species was described from specimens collected in Takon, Oueme Province, Benin, on Morinda lucida. No additional specimens were collected in this study.
World distribution. Benin.
description: Published as part of De Moraes, Gilberto J., Zannou, Ignace D., Ueckermann, Eddie A., Oliveira, Anibal R., Hanna, Rachid & Yaninek, John S., 2007, Species of the subtribes Arrenoseiina and Proprioseiopsina (Tribe Amblyseiini) and the tribe Typhlodromipsini (Acari: Phytoseiidae) from sub-Saharan Africa, pp. 1-39 in Zootaxa 1448 (1) on page 27, DOI: 10.11646/zootaxa.1448.1.1, http://zenodo.org/record/5077273
Fashion, Death, and Re-Birth : Regenerating Milan’s Decommissioned Rail Yards Towards Ecological, Spiritual, and Cultural Attunement
Creators: name: Careri, Sabrina
Publisher: name: The University of British Columbia
Year: 2024

description: As ‘cities of the dead,’ cemeteries are the utmost reflection of the culture, collective memory, and dominant societal values throughout history. The evolution of design for cemeteries in Italy especially, demonstrate these narratives, visualizing the true significance of dominant social, cultural, and political structures that shape the landscapes around us. As a result of a historic aspiration for the monumental, a tension has long existed between architecture and landscape, within the design of Italian cemeteries. Fashion, Death, and Re-Birth challenges the dominant practices used in designing landscapes of grief and memory, within the context of Italian cemeteries, to reveal new approaches better suited to provide healing and celebration, at two of Milan’s decommissioned rail yards – Porta Genova and San Cristoforo. All the while, establishing connections between the cultural significance of Italian architecture and Italian fashion. This project connects ideas of grief, with landscape restoration, expanding perceptions of grief for people, to include the loss felt by a disconnection to landscape and culturally and / or ecologically significant systems - resulted from transformations in cities over time. By designing a place for spiritual rejuvenation, through acts of celebrating culture and immersing oneself amongst urban ecology around Milan’s historic Naviglio Grande, this project positions landscape design as a tool through which we can rekindle our innate human connection to nature in birth, through life, and in death.
Determinants of Persistent and Transient Technical Efficiency of Austrian Crop Farms
Creators: name: Addo, Felicity
name: Salhofer, Klaus
name: Addo, Felicity
name: Salhofer, Klaus
Publisher: name: Unknown
Year: 2019
Subjects: subject: Agricultural and Food Policy
subject: Production Economics
subject: Productivity Analysis
subject: stochastic frontier analysis
subject: transient and persistent technical efficiency
subject: crop farms
subject: Austria

description: In the last two decades, the Common Agricultural Policy (CAP) of the European Union (EU) has experienced significant changes which has created a highly competitive market in which farmers operate. This is particularly challenging for countries with small-scaled agriculture like Austria, requiring farms to significantly improve technical efficiency in order to be competitive. In this paper, we apply a four-error component model to decompose technical efficiency into persistent inefficiency, which captures long run effects of farm management, and transient inefficiency, which accounts for how farms adjust to short run production shocks, while controlling for farm heterogeneity and a random error. We extend this model to include exogenous determinants for both types technical inefficiency. To do so, we estimate a translog stochastic production function for a panel of 231 Austrian crop farms for the period 2003-2016. We observe that though transient and persistent efficiency are similar on average, persistent efficiency is much more dispersed suggesting that persistent technical inefficiency poses a greater problem for Austrian crop farms than the transient component. Overall technical efficiency is estimated at 89%. Regarding persistent technical efficiency, we find that full time farms and medium to large scale farms are more efficient. However, we observe that older farmers and farms that employ a high proportion of family labour are less persistently efficient. With regards to transient technical efficiency, we find that farms that cultivate more on their own land are less transiently efficient compared to farms on rented land. Lastly, we observe that farm subsidies in general negatively affects both types of efficiency.
Lamé curve approximation for the assessment of the 3D temperature distribution in keyhole mode welding processes
Creators: name: Artinov, Antoni
name: Karkhin, Victor
name: Bakir, Nasim
name: Meng, Xiangmeng
name: Bachmann, Marcel
name: Gumenyuk, Andrey
name: Rethmeier, Michael
Publisher: name: Technische Universität Berlin
Year: 2020
Subjects: subject: 600 Technik, Technologie
subject: 530 Physik
subject: Lamé curves approximation
subject: equivalent heat source
subject: thermal cycles
subject: numerical modeling
subject: keyhole mode welding

description: This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in A. Artinov et al., Journal of Laser Applications 32, 022042 (2020) and may be found at https://doi.org/10.2351/7.0000076.
description: A novel approach for the reconstruction of an equivalent volumetric heat source from a known weld pool shape is proposed. It is based on previously obtained weld pool geometries from a steady-state thermo-fluid dynamics simulation. Hereby, the weld pool dimensions are obtained under consideration of the most crucial physical phenomena, such as phase transformations, thermo-capillary convection, natural convection, and temperature-dependent material properties. The algorithm provides a time and calibration efficient way for the reproduction of the weld pool shape by local Lamé curves. By adjusting their parameters, the identification of the finite elements located within the weld pool is enabled. The heat input due to the equivalent heat source is assured by replacing the detected nodes' temperature by the melting temperature. The model offers variable parameters making it flexible and adaptable for a wide range of workpiece thicknesses and materials and allows for the investigation of transient thermal effects, e.g., the cooling stage of the workpiece. The calculation times remain acceptably short especially when compared to a fully coupled process simulation. The computational results are in good agreement with performed complete-penetration laser beam welding experiments.
Hardware and software status of QCDOC
Creators: name: Boyle, P. A.
name: Chen, D.
name: Christ, N. H.
name: Clark, M.
name: Cohen, S. D.
name: Cristian, C.
name: Dong, Z.
name: Gara, A.
name: Joo, B.
name: Jung, C.
name: Kim, C.
name: Levkova, L.
name: Liao, X.
name: Liu, G.
name: Mawhinney, R. D.
name: Ohta, S.
name: Petrov, K.
name: Wettig, T.
name: Yamaguchi, A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: QCDOC is a massively parallel supercomputer whose processing nodes are based on an application-specific integrated circuit (ASIC). This ASIC was custom-designed so that crucial lattice QCD kernels achieve an overall sustained performance of 50% on machines with several 10,000 nodes. This strong scalability, together with low power consumption and a price/performance ratio of $1 per sustained MFlops, enable QCDOC to attack the most demanding lattice QCD problems. The first ASICs became available in June of 2003, and the testing performed so far has shown all systems functioning according to specification. We review the hardware and software status of QCDOC and present performance figures obtained in real hardware as well as in simulation.
description: Lattice2003(machine), 6 pages, 5 figures
Duality Between Hydrogen Atom and Oscillator Systems via Hidden SO(d,2) Symmetry and 2T-physics
Creators: name: Bars, Itzhak
name: Rosner, Jonathan L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The relation between motion in $-1/r$ and $r^{2}$ potentials, known since Newton, can be demonstrated by the substitution $r\rightarrow r^{2}$ in the classical/quantum radial equations of the Kepler/Hydrogen problems versus the harmonic oscillator. This suggests a duality-type relationship between these systems. However, when both radial and angular components of these systems are included the possibility of a true duality seems to be remote. Indeed, investigations that explored and generalized Newton's radial relation, including algebraic approaches based on noncompact groups such as SO(4,2), have never exhibited a full duality consistent with Newton's. On the other hand, 2T-physics predicts a host of dualities between pairs of a huge set of systems that includes Newton's two systems. These dualities take the form of rather complicated canonical transformations that relate the full phase spaces of these respective systems in all directions. In this paper we focus on Newton's case by imposing his radial relation to find an appropriate basis for 2T-physics dualities, and then construct the full duality. Using the techniques of 2T-physics, we discuss the hidden symmetry of the actions (beyond the symmetry of Hamiltonians) for the Hydrogen atom in $D$-dimensions and the harmonic oscillator in $\bar{D}$ dimensions. The symmetries lead us to find the one-to-one relation between the quantum states, including angular degrees of freedom, for specific values of $\left( D,\bar{D}\right) $, and construct the explicit quantum canonical transformation in those special cases. We find that the canonical transformation has itself a hidden gauge symmetry that is crucial for the respective phase spaces to be dual even when $D\neq\bar{D}$. In this way we display the surprising beautiful symmetry of the full duality that generalizes Newton's radial duality.
description: 56 pages, no figures
The relation between ACE D/I and CYP11B2 C-344T polymorphisms and parameters of arterial stiffness in the context of renal sodium handling
Creators: name: Cwynar, Marcin
name: Gąsowski, Jerzy
name: Gryglewska, Barbara
name: Głuszewska, Anna
name: Bartoń, Henryk
name: Słowik, Agnieszka
name: Grodzicki, Tomasz
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Marine Biology

description: Background. Sodium overload is related to the development of primary hypertension and its complications. Methods. In 131 (65 female) treated hypertensives (average blood pressure 144/82 mmHg and duration of hypertension 11.7 years), we measured peripheral and central arterial pressures, peripheral (AIxP) and central (AIxC1, AIxC2) augmentation indices, pulse-wave velocity (PWV) and daily urinary sodium excretion, and conducted genetic studies of ACE D/I and CYP11B2 C-344T polymorphisms. Proximal (FELi) and distal (FDRNa) sodium reabsorption measurements were performed using endogenous lithium clearance. Results. We found statistically significant interactions between FELi and ACE D/I polymorphism with respect to AIxC2 (PINT = 0.05) and between FELi and CYP11B2 C-344T polymorphism with respect to AIxC1 (PINT = 0.01), AIxC2 (PINT = 0.04) and AIxP (PINT = 0.01). In the group of ACE I allele carriers compared with DD homozygotes, the AIxC1 (154.1 vs 140.6%; p = 0.02), AIxC2 (33.3 vs 26.9%; p = 0.02) and AIxP (94.6 vs 85.2%; p = 0.01) were higher in the subgroup with FELi below the median value (FELi1), but not in the subgroup with FELi above the median value (FELi2). In the group of CYP11B2 TT homozygotes compared with C allele carriers, we observed higher values of AIxC1 (158.5 vs 146.4%; p = 0.03), AIxC2 (36.0 vs 29.4%; p = 0.01) and AIxP (99.0 vs 88.7%; p = 0.005) in the FELi1 but not the FELi2 subgroup. Conclusions. In the population with assumed high dietary sodium intake and long-standing history of hypertension, the relation between proximal sodium reabsorption and the development of arterial stiffness depends on the genetic context of the selected genetic polymorphisms of the renin—angiotensin—aldosterone system, independent of blood pressure.
On zero-point energy, stability and Hagedorn behavior of Type IIB strings on pp-waves
Creators: name: Bigazzi, F.
name: Cotrone, A. L.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Type IIB strings on many pp-wave backgrounds, supported either by 5-form or 3-form fluxes, have negative light-cone zero-point energy. This raises the question of their stability and poses possible problems in the definition of their thermodynamic properties. After having pointed out the correct way of calculating the zero-point energy, an issue not fully discussed in literature, we show that these Type IIB strings are classically stable and have well defined thermal properties, exhibiting a Hagedorn behavior.
description: Latex, 13 pages. v2: regularization/renormalization prescription clarified, refs. added
Resolution Limits for the Noisy Non-Adaptive 20 Questions Problem
Creators: name: Zhou, Lin
name: Hero, Alfred
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We establish fundamental limits on estimation accuracy for the noisy 20 questions problem with measurement-dependent noise and introduce optimal non-adaptive procedures that achieve these limits. The minimal achievable resolution is defined as the absolute difference between the estimated and the true locations of a target over a unit cube, given a finite number of queries constrained by the excess-resolution probability. Inspired by the relationship between the 20 questions problem and the channel coding problem, we derive non-asymptotic bounds on the minimal achievable resolution to estimate the target location. Furthermore, applying the Berry--Esseen theorem to our non-asymptotic bounds, we obtain a second-order asymptotic approximation to the achievable resolution of optimal non-adaptive query procedures with a finite number of queries subject to the excess-resolution probability constraint. We specialize our second-order results to measurement-dependent versions of several channel models including the binary symmetric, the binary erasure and the binary Z- channels. As a complement, we establish a second-order asymptotic achievability bound for adaptive querying and use this to bound the benefit of adaptive querying.
description: To appear in IEEE Transactions on Information Theory, 2021. The conference version is v1, which appeared in ISIT 2020. In fact, this version is the latest version of arXiv:1909.12954, which includes all the revisions made during to the review progress and thus v2/v3 here should be named v4 of arXiv:1909.12954. This is the reason why there is a substantial text overlap
North Shuswap Sanctuary : Envisioning a fire-resilient, risky-play based schoolyard for children in the urban-wildfire interface
Creators: name: Richards, Jennifer
Publisher: name: The University of British Columbia
Year: 2024

description: Throughout British Columbia, the edges of fire-prone areas often intersect with inhabited spaces along the wildfire-urban interface, leading to disastrous consequences. The fate of these landscapes are tied to those who share space with them. Situated along the burn scars of the 2023 Bush Creek East Wildfire, this project seeks to create a vision for the existing playground at North Shuswap Elementary. Residents of this community were deeply affected by the Bush Creek East Wildfire in 2023, with many having faced devastating losses. Through the integration of fire resistant design principles and nature-based play elements, it aims to promote resilience to future environmental challenges. By providing access to nature and risky play, this project provides an enriched setting for children during their cognitive years, providing a safe yet adventurous space for exploration and growth. In doing so, it reimagines possibilities for designing child-friendly spaces amidst a backdrop of environmental transition.
Theory and Phenomenology of the Polyakov loop in QCD Thermodynamics
Creators: name: Meisinger, Peter N.
name: Miller, Travis R.
name: Ogilvie, Michael C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A synthesis of Polyakov loop models of the deconfinement transition and quasiparticle models of gluon plasma thermodynamics leads to a class of models in which gluons move in a non-trivial Polyakov loop background. These models are successful candidates for explaining both critical behavior and the equation of state for the SU(3) gauge theory at finite temperature. Two sensitive lattice probes which can discriminate between models are the Polyakov loop P and e-3p.
description: 3 pages, 4 figures, proceedings for Lattice2003(nonzero)
ACBN Newsletter #1 Oct-Dec 2020
Creators: name: Duschl, Albert
name: Huber, Christian G.
name: Posselt, Gernot
name: Brandstetter, Hans
name: Risch, Angela
Publisher: name: Zenodo
Year: 2021

description: The first ACBN Newsletter will include here information about recent developments, highlights from the research performed in ACBN, introductions to new groups and faculty members, and other items. In this edition you will find: a final report on the doctoral school ICA, which is after 12 years now drawing to a close news about the movements of our groups from the Billrothstrasse to the NaWi (a seemingly endless project that is now close to its finish) and an introduction to the group of Angela Risch, which some of you may not know yet.
Base64 encoding and decoding at almost the speed of a memory copy
Creators: name: Muła, Wojciech
name: Lemire, Daniel
Publisher: name: arXiv
Year: 2019
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Many common document formats on the Internet are text-only such as email (MIME) and the Web (HTML, JavaScript, JSON and XML). To include images or executable code in these documents, we first encode them as text using base64. Standard base64 encoding uses 64~ASCII characters: both lower and upper case Latin letters, digits and two other symbols. We show how we can encode and decode base64 data at nearly the speed of a memory copy (memcpy) on recent Intel processors, as long as the data does not fit in the first-level (L1) cache. We use the SIMD (Single Instruction Multiple Data) instruction set AVX-512 available on commodity processors. Our implementation generates several times fewer instructions than previous SIMD-accelerated base64 codecs. It is also more versatile, as it can be adapted---even at runtime---to any base64 variant by only changing constants.
The metric theory of the pair correlation function of real-valued lacunary sequences
Creators: name: Technau, Niclas
name: Rudnick, Zeév
Publisher: name: arXiv
Year: 2020
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11J54, 11J71

description: Let $\{ a(x) \}_{x=1}^{\infty}$ be a positive, real-valued, lacunary sequence. This note shows that the pair correlation function of the fractional parts of the dilations $αa(x)$ is Poissonian for Lebesgue almost every $α\in \mathbb{R}$. By using harmonic analysis, our result - irrespective of the choice of the real-valued sequence $\{ a(x) \}_{x=1}^{\infty}$ - can essentially be reduced to showing that the number of solutions to the Diophantine inequality $$ \vert n_1 (a(x_1)-a(y_1))- n_2(a(x_2)-a(y_2)) \vert < 1 $$ in integer six-tuples $(n_1,n_2,x_1,x_2,y_1,y_2)$ located in the box $[-N,N]^6$ with the ``excluded diagonals'', that is $$x_1\neq y_1, \quad x_2 \neq y_2, \quad (n_1,n_2)\neq (0,0),$$ is at most $N^{4-δ}$ for some fixed $δ>0$, for all sufficiently large $N$.
description: Comments welcome
Hadronic Density of States from String Theory
Creators: name: Zayas, Leopoldo A. Pando
name: Vaman, Diana
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Exactly soluble string theories describing a particular hadronic sector of certain confining gauge theories have been obtained recently as Penrose-Gueven limits of the dual supergravity backgrounds. The effect of taking the Penrose-Gueven limit on the gravity side translates, in the gauge theory side, into an effective truncation to hadrons of large U(1) charge (annulons). We present an exact calculation of the finite temperature partition function for the hadronic states corresponding to a Penrose-Gueven limit of the Maldacena-Nunez embedding of N=1 SYM into string theory. It is established that the theory exhibits a Hagedorn density of states. Motivated by this exact calculation we propose a semiclassical string approximation to the finite temperature partition function for confining gauge theories admitting a supergravity dual, by performing an expansion around classical solutions characterized by temporal windings. This semiclassical approximation reveals a hadronic energy density of states of Hagedorn type, with the coefficient determined by the gauge theory string tension as expected for confining theories. We argue that our proposal captures primarily information about states of pure N=1 SYM, given that this semiclassical approximation does not entail a projection onto states of large U(1) charge.
description: 15 pages
Heart rate variability on antihypertensive drugs in black patients living in sub-Saharan Africa
Creators: name: Chukwunomso E. Osakwe
name: Jacobs, Lotte
name: Anisiuba, Benedict C.
name: Mouhamado B. Ndiaye
name: Lemogoum, Daniel
name: Chinwuba K. Ijoma
name: Kamdem, Marius M.
name: Lutgarde Thijs
name: Boombhi, Hilaire J.
name: Kaptue, Joseph
name: Kolo, Philip M.
name: Mipinda, Jean B.
name: Odili, Augustine N.
name: Birinus Ezeala-Adikaibe
name: Kingue, Samuel
name: Babatunde A. Omotoso
name: Serigne A. Ba
name: Ifeoma I. Ulasi
name: Jean-Rene M’buyamba-Kabangu
name: Staessen, Jan A.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Background. Compared with Caucasians, African Americans have lower heart rate variability (HRV) in the high-frequency domain, but there are no studies in blacks born and living in Africa. Methods. In the Newer versus Older Antihypertensive agents in African Hypertensive patients trial (NCT01030458), patients (30–69 years) with uncomplicated hypertension (140–179/90–109 mmHg) were randomized to single-pill combinations of bisoprolol/hydrochlorothiazide (R) or amlodipine/valsartan (E). 72 R and 84 E patients underwent 5-min ECG recordings at randomization and 8, 16 and 24 weeks. HRV was determined by fast Fourier transform and autoregressive modelling. Results. Heart rate decreased by 9.5 beats/min in R patients with no change in E patients (− 2.2 beats/min). R patients had reduced total (− 0.13 ms²; p = 0.0038) and low-frequency power (− 3.6 nu; p = 0.057), higher high-frequency (+ 3.3 nu; p = 0.050) and a reduced low- to high-frequency ratio (− 0.08; p = 0.040). With adjustment for heart rate, these differences disappeared, except for the reduced low-frequency power in the R group (− 4.67 nu; p = 0.02). Analyses confined to 39 R and 47 E patients with HRV measurements at all visits or based on autoregressive modelling were confirmatory. Conclusion. In native black African patients, antihypertensive drugs modulate HRV, an index of autonomous nervous tone. However, these effects were mediated by changes in heart rate except for low-frequency variability, which was reduced on beta blockade independent of heart rate.
Typhlodromips neoswellendamensis Moraes, Zannou & Oliveira 2007, n. sp.
Creators: name: De Moraes, Gilberto J.
name: Zannou, Ignace D.
name: Ueckermann, Eddie A.
name: Oliveira, Anibal R.
name: Hanna, Rachid
name: Yaninek, John S.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Mesostigmata
Phytoseiidae
Typhlodromips
Typhlodromips neoswellendamensis

description: Typhlodromips neoswellendamensis Moraes, Zannou & Oliveira, n. sp.
(Fig. 19)
Diagnosis. This species is characterized by having reticulate dorsal shield; all dorsal setae smooth, except Z5, which is serrate; sternal shield mostly smooth, with few lateral striae; ventrianal shield reticulate; 1 pair of metapodal shields; calyx of spermatheca cup-shaped; Sge IV about as long as Sti IV and both ca. 50% as long as St IV.
Female. (1 specimen measured).
Dorsum. Dorsal shield with faint reticulation on anterior half and with distinct reticulation on posterior half, 424 long and 238 wide. Setae j1 29, j3 32, j4 14, j5 11, j6 broken, J2 19, J5 11, z2 19, z4 16, z5 13, Z1 19, Z4 46, Z5 77, s4 42, S2 26, S4 22, S5 16, r3 21, R1 22. All setae smooth, except Z5 which is serrate.
Venter. Sternal shield mostly smooth, with few lateral striae; posterior margin irregular and slightly concave; distances between St1-St3 83, St2-St2 85. Genital shield smooth; distance between St5-St5 85. Ventrianal shield pentagonal, reticulate; anterior margin slightly convex, 128 long, 118 wide at level of Zv2 and 105 wide at level of anus, preanal pores posterior to and approximately vertically aligned with Jv2. A single pair of distinct metapodal shields. Ventral setae smooth.
 Chelicera. Movable digit 45 long, with 2 teeth; fixed digit 40 long, with 7 teeth and a pilus dentilis.
Spermatheca. Calyx cup-shaped, 9 long; atrium small.
Legs. Sharp-tipped macrosetae; Sge II 29, Sge III 29, Sti III 27, Sge IV 46, Sti IV 45, St IV 91. Chaetotaxy: genu II: 2–2/0,2/1–1; genu III: 1–2/0,2/1–1.
Male. Unknown.
Locality and type material. Holotype female from unknown plant, 39 km W Nakuru, Valley Province, Kenya, 04-XII-1989, J.S. Yaninek, deposited at ESALQ-USP.
 Etymology. The epithet neoswellendamensis refers to the similarity between this new species and Typhlodromips swellendamensis (Ueckermann & Loots).
 Remarks. Typhlodromips swellendamensis (Ueckermann & Loots, 1988) and Typhlodromips tee (Schicha, 1983) differ from this new species by having dorsal shield centrally smooth, sternal and ventrianal shields smooth and 2 pairs of metapodal shields. In addition, T. tee has movable and fixed cheliceral digits with 3 and 10 teeth, respectively.
description: Published as part of De Moraes, Gilberto J., Zannou, Ignace D., Ueckermann, Eddie A., Oliveira, Anibal R., Hanna, Rachid & Yaninek, John S., 2007, Species of the subtribes Arrenoseiina and Proprioseiopsina (Tribe Amblyseiini) and the tribe Typhlodromipsini (Acari: Phytoseiidae) from sub-Saharan Africa, pp. 1-39 in Zootaxa 1448 (1) on pages 30-31, DOI: 10.11646/zootaxa.1448.1.1, http://zenodo.org/record/5077273