cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A microscopic view of accelerated dynamics in deformed polymer glasses
Creators: name: Warren, Mya
name: Rottler, Joerg
Publisher: name: arXiv
Year: 2010
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: A molecular level analysis of segmental trajectories obtained from molecular dynamics simulations is used to obtain the full relaxation time spectrum in aging polymer glasses subject to three different deformation protocols. As in experiments, dynamics can be accelerated by several orders of magnitude, and a narrowing of the distribution of relaxation times during creep is directly observed. Additionally, the acceleration factor describing the transformation of the relaxation time distributions is computed and found to obey a universal dependence on the global strain, independent of age and deformation protocol.
description: 4 pages, 3 figures
Investigation of the selfpressure broadening of the Ne [Lambda] 6074.3 A° line profile by Zeeman scanning
Creators: name: Burnett, John Crawford Duncan
Publisher: name: University of British Columbia
Year: 2011

description: The shape of the Ne.λ6074.3 A° absorption line profile has been investigated using the Zeeman scanning technique. Neon glow discharges at three pressures, 2 Torr, 50 Torr, and 100 Torr, were used as absorbers while a 2 Torr Geissler tube was used as the source. The self-pressure broadening of the observed line was clearly observed and the rate of broadening compares well with theoretical estimates made from the impact theory with a van der Waals interaction assumed. No shift was detected, in contradiction to the theory. This lack of shift, and the rate of pressure broadening observed, were in agreement with the results of Smith (14) regarding the shift and broadening of the Ca.λ6573 A° line by neon.
Pri la uzo de netradiciaj skribsistemoj por la asiria lingvo en Rusio
Creators: name: Sarkisov, Ivan
Publisher: name: Kervan. International Journal of African and Asian Studies
Year: 2023

description: Kervan. International Journal of African and Asian Studies, V. 27 N. 2 (2023): Liber Amicorum Fabricio A. Pennacchietti Dicatus
title: Journal of Facade Design and Engineering, Vol. 2 No. 3-4 (2014): Façade Design and Engineering
title: Façade Design and Engineering
titleType: AlternativeTitle
Creators: name: Journal Of Facade Design And Engineering
Publisher: name: Journal of Facade Design and Engineering
Year: 2014

description: Finding the scope within a growing community
description: Potential for innovative massive building envelope systems – Scenario development towards integrated active systems...255-268 Visual assessment of BIPV retrofit design proposals for selected historical buildings using the saliency map method...235-254 Structural glass envelopes – Implementation of environmental studies into viscoelastic analysis...223-233 A completely transparent, adhesively bonded soda-lime glass block masonry system...201-221 Innovative design tool for the optimization of blast-enhanced facade systems...183-200 Diagonally arranged louvers in integrated facade systems - effects on the interior lighting environment...163-182 Next generation structural silicone glazing...137-162 Facade Design and Engineering - Finding the scope within a growing community...135-136
Five Easy Pieces: The Dynamics of Quarks in Strongly Coupled Plasmas
Creators: name: Mia, Mohammed
name: Dasgupta, Keshav
name: Gale, Charles
name: Jeon, Sangyong
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We revisit the analysis of the drag a massive quark experiences and the wake it creates at a temperature T while moving through a plasma using a gravity dual that captures the renormalisation group runnings in the dual gauge theory. Our gravity dual has a black hole and seven branes embedded via Ouyang embedding, but the geometry is a deformation of the usual conifold metric. In particular the gravity dual has squashed two spheres, and a small resolution at the IR. Using this background we show that the drag of a massive quark receives corrections that are proportional to powers of log T when compared with the drag computed using AdS/QCD correspondence. We use the perturbation produced by the quark strings to compute the wake and compare with the results obtained using AdS/QCD correspondence. We also study the shear viscosity with running couplings, analyze the viscosity to entropy ratio and compare the result with the known bound. In the presence of higher order curvature square corrections from the back-reactions of the embedded D7 branes, we argue the possibility of the entropy to viscosity bound being violated. Finally, we show that our set-up could in-principle allow us to study a family of gauge theories at the boundary by cutting off the dual geometry respectively at various points in the radial direction. All these gauge theories can have well defined UV completions, and more interestingly, we demonstrate that any thermodynamical quantities derived from these theories would be completely independent of the cut-off scale and only depend on the temperature at which we define these theories. Such a result would justify the holographic renormalisabilities of these theories which we, in turn, also demonstrate. We give physical interpretations of these results and compare them with more realistic scenarios.
description: 130 pages, 12 eps figures, LaTex; v4: final version with corrected typos, numerous additional references and enlargement of some sections. The published version, that appears in Nucl. Phys. B, differs slightly in section 3 where there is more emphasis on holographic renormalisabilty and less on the wake, compared to this version
Additional file 1 of Identification of candidate genomic regions for egg yolk moisture content based on a genome-wide association study
Creators: name: Zhang, Ruiqi
name: Yao, Fusheng
name: Cheng, Xue
name: Yang, Mengyuan
name: Ning, Zhonghua
Publisher: name: figshare
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1.
Fabrizio Angelo Pennacchietti: storia di un’amicizia
Creators: name: Venier, Federica
Publisher: name: Kervan. International Journal of African and Asian Studies
Year: 2023

description: Kervan. International Journal of African and Asian Studies, V. 27 N. 2 (2023): Liber Amicorum Fabricio A. Pennacchietti Dicatus
Cosmological hydrogen recombination: The effect of extremely high-n states
Creators: name: Grin, Daniel
name: Hirata, Christopher M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Calculations of cosmological hydrogen recombination are vital for the extraction of cosmological parameters from cosmic microwave background (CMB) observations, and for imposing constraints to inflation and re-ionization. The Planck} mission and future experiments will make high precision measurements of CMB anisotropies at angular scales as small as l~2500, necessitating a calculation of recombination with fractional accuracy of ~10^{-3}. Recent work on recombination includes two-photon transitions from high excitation states and many radiative transfer effects. Modern recombination calculations separately follow angular momentum sublevels of the hydrogen atom to accurately treat non-equilibrium effects at late times (z<900). The inclusion of extremely high-n (n>100) states of hydrogen is then computationally challenging, preventing until now a determination of the maximum n needed to predict CMB anisotropy spectra with sufficient accuracy for Planck. Here, results from a new multi-level-atom code (RecSparse) are presented. For the first time, `forbidden' quadrupole transitions of hydrogen are included, but shown to be negligible. RecSparse is designed to quickly calculate recombination histories including extremely high-n states in hydrogen. Histories for a sequence of values as high as n_max=250 are computed, keeping track of all angular momentum sublevels and energy shells of the hydrogen atom separately. Use of an insufficiently high n_max value (e.g., n_max=64) leads to errors (e.g., 1.8 sigma for Planck) in the predicted CMB power spectrum. Extrapolating errors, the resulting CMB anisotropy spectra are converged to 0.5 sigma at Fisher-matrix level for n_max=128, in the purely radiative case.
description: 19 pages, 12 figures, replaced with version published in Physical Review D (added discussion of collisions).
Optically induced orientational transitions in nematics with planar alignment
Creators: name: Krimer, Dmitry O.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Theoretical study of dynamical phenomena induced by a linearly polarized plane wave incident perpendicularly on a planar aligned nematic layer with the light intensity as the control parameter is reported. We find the threshold of the Optically Induced Freedericksz Transition for the planar state as a function of the problem parameters. It occurs that the threshold is substantially lower than that expected before. Above the primary instability the director settles either to a stationary or to an oscillatory states depending on a thickness of the layer. These states become unstable at a secondary threshold through a heteroclinic bifurcation and the director settles to a new stationary distorted state.
Covariant separable interaction for the neutron-proton system in $^3S_1$-$^3D_1$ partial-wave state
Creators: name: Bondarenko, S. G.
name: Burov, V. V.
name: Hwang, W. -Y. Pauchy
name: Rogochaya, E. P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Within a covariant Bethe-Salpeter approach a rank-six separable neutron-proton interaction kernel for the triplet coupled $^3S_1$-$^3D_1$ partial-wave state is constructed. Two different methods of a relativistic generalization of initially nonrelativistic form factors parametrizing the kernel are considered. The model parameters are determined by fitting the elastic $^3S_1$ and $^3D_1$ phase shifts and the triplet scattering length as well as the asymptotic $D/S$ ratio of the deuteron wave functions and the deuteron binding energy. The $D$-state probability constraints 4-7\% are taken into account. The deuteron magnetic moment is calculated. The half-off-shell properties are further demonstrated by the Noyes-Kowalski functions. The first test of the constructed kernel is performed by calculating the deuteron electrodisintegration at three different kinematic conditions.
description: 17 pages, 12 figures
Additional file 3 of Access to care for childhood cancers in India: perspectives of health care providers and the implications for universal health coverage
Creators: name: Faruqui, Neha
name: Bernays, Sarah
name: Martiniuk, Alexandra
name: Abimbola, Seye
name: Arora, Ramandeep
name: Lowe, Jennifer
name: Denburg, Avram
name: Joshi, Rohina
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 3: Table 3. Names of Institutional Review Boards which approved the study. Names of Institutional Review Boards which approved the study.
Estimating the selection efficiency
Creators: name: Casadei, Diego
Publisher: name: arXiv
Year: 2009
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: The measurement of the efficiency of an event selection is always an important part of the analysis of experimental data. The statistical techniques which are needed to determine the efficiency and its uncertainty are reviewed. Frequentist and Bayesian approaches are illustrated, and the problem of choosing a meaningful prior is explicitly addressed. Several practical use cases are considered, from the problem of combining different samples to complex situations in which non-unit weights or non-independent selections have been used. The Bayesian approach allows to find analytical expressions which solve even the most complicate problems, which make use of the family of Beta distributions, the conjugate priors for the binomial sampling.
Quantum non-equilibrium and relaxation to equilibrium for a class of de Broglie-Bohm-type theories
Creators: name: Colin, Samuel
name: Struyve, Ward
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The de Broglie-Bohm theory is about non-relativistic point-particles that move deterministically along trajectories. The theory reproduces the predictions of standard quantum theory, given that the distribution of particles over an ensemble of systems, all described by the same wavefunction $ψ$, equals the quantum equilibrium distribution $|ψ|^2$. Numerical simulations by Valentini and Westman have illustrated that non-equilibrium particle distributions may relax to quantum equilibrium after some time. Here we consider non-equilibrium distributions and their relaxation properties for a particular class of trajectory theories, first studied in detail by Deotto and Ghirardi, that are empirically equivalent to the de Broglie-Bohm theory in quantum equilibrium. For the examples of such theories that we consider, we find a speed-up of the relaxation compared to the ordinary de Broglie-Bohm theory. Hence non-equilibrium predictions that depend strongly on relaxation properties, such as those studied recently by Valentini, may vary for different trajectory theories. As such these theories might be experimentally distinguishable.
description: 25 pages, 8 figures, PDFLaTeX; v2 minor corrections
“Come si chiama?” Così gli Egizi scrissero i nomi stranieri
Creators: name: Roccati, Alessandro
Publisher: name: Kervan. International Journal of African and Asian Studies
Year: 2023

description: Kervan. International Journal of African and Asian Studies, V. 27 N. 2 (2023): Liber Amicorum Fabricio A. Pennacchietti Dicatus
Observation of the transverse Stern-Gerlach effect in neutral potassium and an analysis of a charged particle Stern-Gerlach experiment
Creators: name: Enga, Eric
Publisher: name: University of British Columbia
Year: 2011

description: Two experiments are described. One is the successful observation of the resonant deflection of a beam of neutral potassium atoms at a frequency of 7.2 Mhz, in agreement with the predictions of the theory of the Transverse Stern-Gerlach (TGS) experiment. The other is a proposal for a charged particle Stern-Gerlach experiment, which is based on an extension of the TSG experiment to time independent, inhomogeneous magnetic fields having the form [formula omitted] If the field B₁(r) is well chosen, the charged particle trajectories are confined in a stable beam by the resulting Lorentz forces for motion generally along the z axis. This is, in fact, the principle of strong focusing which is now widely used in accelerator design. But in such a system it is also possible to satisfy the criterion for a TSG experiment, since in a frame of reference moving with a particle in the z direction, the field B₁(r) is rotating in time.
A Fermi Sea of Heavy Electrons (a Kondo Lattice) is Never a Fermi Liquid
Creators: name: Anderson, Philip W
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: I demonstrate a contradiction which arises if we assume that the Fermi surface in a heavy electron metal represents a finite jump in occupancy.
Ĉu tipologiaj ŝanĝoj en Esperanto?
Creators: name: Miola, Emanuele
Publisher: name: Kervan. International Journal of African and Asian Studies
Year: 2023

description: In this paper, typological changes that took place, or are taking place, in Esperanto are discussed for the first time. Two varieties, namely, the one used by Esperanto’s planner Ludwik Lejzer Zamenhof, and the other one used in modern and contemporary Esperantist magazines, are put in comparison. Three different case studies are discussed: the order of adjective and noun in the noun phrase; the order of verb and manner adverbs in the verb phrase, and the usage of pre-nominal participial relative clauses vs the usage of the (post-nominal) relative pronoun strategy. The analysis is based on corpus-driven data, drawn from the existing literature on the topic and from corpus queries carried out by the author. Results show evidence of some changes in the typological shape of Esperanto. The reason behind these changes is also investigated; most notably, influences of English and speakers’ mother tongues, as well as natural typological drift, cannot be called into question, as far as syntactic changes are concerned. On the other hand, it seems reasonable to think that changes involving morphology – at least to some extent – are due to the tendency of Esperanto speakers to reduce the number of words and of morphemes in their sentences, fully exploiting the agglutinative morphology of the language.
description: Kervan. International Journal of African and Asian Studies, V. 27 N. 2 (2023): Liber Amicorum Fabricio A. Pennacchietti Dicatus
Correlations, Risk and Crisis: From Physiology to Finance
Creators: name: Gorban, A. N.
name: Smirnova, E. V.
name: Tyukina, T. A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Physics and Society (physics.soc-ph)
subject: General Finance (q-fin.GN)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: We study the dynamics of correlation and variance in systems under the load of environmental factors. A universal effect in ensembles of similar systems under the load of similar factors is described: in crisis, typically, even before obvious symptoms of crisis appear, correlation increases, and, at the same time, variance (and volatility) increases too. This effect is supported by many experiments and observations of groups of humans, mice, trees, grassy plants, and on financial time series. A general approach to the explanation of the effect through dynamics of individual adaptation of similar non-interactive individuals to a similar system of external factors is developed. Qualitatively, this approach follows Selye's idea about adaptation energy.
description: 42 pages, 15 figures, misprints corrections, a proof is added, improved journal version
“Kristanoj, hebreoj aŭ mahometanoj ni ĉiuj de Di’ estas filoj”: Eta prikonsiderado interkultura kaj interreligia pri la ‘homa familio’ inter Eŭrop-Azio kaj Mediteraneo
Creators: name: Astori, Davide
Publisher: name: Kervan. International Journal of African and Asian Studies
Year: 2023

description: Starting with an analysis of the name 'Europe' and the ancient myths connected to it, and mentioning at least, as archetypal, Noah and his sons, the history of the founding of the Medical School of Salerno and the utopia of a common language of the 1800s, we will discuss more generally the value of intercultural and interreligious dialogue between Europeans, Hebrews and Muslims, sons of a common cultural hum which, as in a fil rouge, keeps them together in the folds of History.
description: Kervan. International Journal of African and Asian Studies, V. 27 N. 2 (2023): Liber Amicorum Fabricio A. Pennacchietti Dicatus
Interlingvistiko retrospektive kaj prospektive: Panoramo pri la originala kontribuo de Fabrizio Pennacchietti al la disciplino
Creators: name: Gobbo, Federico
Publisher: name: Kervan. International Journal of African and Asian Studies
Year: 2023

description: Interlinguistics is one of the oldest branches of Linguistics; nonetheless, its definition and area of application struggles to be accepted by the academe, since its beginning, because it breaks a seldom admitted taboo of linguists, i.e. the fact that even if the capability of languages is natural in the sense that human beings are biologically programmed to learn languages, the languages they are learning are defined by the societies they happen to live in. Therefore, ultimately, all human languages should not be defined as ‘natural’ but as ‘ethnic’, ‘national’, in case they are consciously planned – in the sense of language planning – by ethnic or national groups, or ‘ethic’, ‘international’, or other adjectives, if defined and shaped by communities of practice that are not identifiable with an ethnic or national group, such as, for example, the Esperantists. This contribution illustrates the consequences of this epistemological and ethical standpoint, elicited from the vast rather often neglected literature in interlinguistics that Fabrizio Pennacchietti published in his long and fruitful academic career.
description: Kervan. International Journal of African and Asian Studies, V. 27 N. 2 (2023): Liber Amicorum Fabricio A. Pennacchietti Dicatus
Rakonteroj kaŝitaj preter kaj inter la linioj
Creators: name: Spanò, Maria Rosaria
Publisher: name: Kervan. International Journal of African and Asian Studies
Year: 2023

description: Kervan. International Journal of African and Asian Studies, V. 27 N. 2 (2023): Liber Amicorum Fabricio A. Pennacchietti Dicatus
Muscle metabolic energy costs while modifying propulsive force generation during walking
Creators: name: Pimentel, Richard E.
name: Pieper, Noah L.
name: Clark, William H.
name: Franz, Jason R.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Evolutionary Biology
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Computational Biology

description: We pose that an age-related increase in the metabolic cost of walking arises in part from a redistribution of joint power where muscles spanning the hip compensate for insufficient ankle push-off and smaller peak propulsive forces (FP). Young adults elicit a similar redistribution when walking with smaller FP via biofeedback. We used targeted FP biofeedback and musculoskeletal models to estimate the metabolic costs of operating lower limb muscles in young adults walking across a range of FP. Our simulations support the theory of distal-to-proximal redistribution of joint power as a determinant of increased metabolic cost in older adults during walking.
Perverse coherent sheaves on blow-up. III. Blow-up formula from wall-crossing
Creators: name: Nakajima, Hiraku
name: Yoshioka, Kota
Publisher: name: arXiv
Year: 2009
Subjects: subject: Algebraic Geometry (math.AG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 14D21, 16G20

description: In earlier papers arXiv:0802.3120, arXiv:0806.0463 of this series we constructed a sequence of intermediate moduli spaces $\bM^m(c)$ connecting a moduli space $M(c)$ of stable torsion free sheaves on a nonsingular complex projective surface and $\bM(c)$ on its one point blow-up. They are moduli spaces of perverse coherent sheaves on the blow-up. In this paper we study how Donaldson-type invariants (integrals of cohomology classes given by universal sheaves) change from $\bM^m(c)$ to $\bM^{m+1}(c)$, and then from $M(c)$ to $\bM(c)$. As an application we prove that Nekrasov-type partition functions satisfy certain equations which determine invariants recursively in second Chern classes. They are generalization of the blow-up equation for the original Nekrasov deformed partition function for the pure N=2 SUSY gauge theory, found and used to derive the Seiberg-Witten curves in arXiv:math/0306198.
description: 62 pages; v2. Add a general blow-up formula; v3. Final version, accepted for a publication in Kyoto Journal of Mathematics
Additional file 1 of Loss of TTC17 promotes breast cancer metastasis through RAP1/CDC42 signaling and sensitizes it to rapamycin and paclitaxel
Creators: name: Zhang, Jingyao
name: Guo, Fengzhu
name: Li, Chunxiao
name: Wang, Yang
name: Wang, Jinsong
name: Sun, Fangzhou
name: Zhou, Yantong
name: Ma, Fei
name: Zhang, Bailin
name: Qian, Haili
Publisher: name: figshare
Year: 2023
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Astronomical and Space Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Additional file 1: Table S1 Sequences of shRNA for TTC17 knockdown and primers targeting lentiCRISPR sgRNAs. Table S2 Mutation profiles of 69 differentially mutated genes common to the TCGA and WES subsets. Abbreviations: TCGA, The Cancer Genome Atlas; WES, whole exon sequencing; DEL, deletion; SNP, single nucleotide polymorphism; INS, insertion. Table S3 Luminal and basal/TNBC cell lines and their TTC17 expression levels from the CCLE database. Abbreviations: TNBC, triple-negative breast cancer; CCLE, Cancer Cell Line Encyclopedia.
Frequentando Fabrizio Pennacchietti da trenta anni
Creators: name: Marello, Carla
Publisher: name: Kervan. International Journal of African and Asian Studies
Year: 2023

description: Kervan. International Journal of African and Asian Studies, V. 27 N. 2 (2023): Liber Amicorum Fabricio A. Pennacchietti Dicatus
Random matrices with external source and KP $τ$ functions
Creators: name: Wang, Dong
Publisher: name: arXiv
Year: 2008
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In this paper we prove that the partition function in the random matrix model with external source is a KP $τ$ function.
description: 12 pages, title changed
A study of positron annihilation in copper alloys
Creators: name: Becker, Ernest Henry
Publisher: name: University of British Columbia
Year: 2011

description: An apparatus for the study of positron annihilation containing some novel new features has been constructed and has been used to study disordered copper alloys in order to investigate the value of this technique in determining the electron momentum distribution. The concentrated alloys Cu₉₀Al₁₀ Cu₈₅Zn₁₅, Cu₇₀Zn₁₅Ni₁₅ and Cu₆₀Ni₄₀ have been studied and effects attributed to the details of the Fermi surface of these alloys observed. In particular, the [lll} necks in the Fermi surfaces of these alloys have been observed and the widths of these necks measured. The cutoffs corresponding to the Fermi radius kf of these alloys have been measured. An anisotropy in the annihilation of positrons with electrons in the filled Brillouin zones has been measured and an unusual effect attributed to the d-band electrons of these alloys has been observed.
Entropic force and its fluctuation in Euclidian quantum gravity
Creators: name: Zhao, Yue
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we study the idea about gravity as entropic force proposed by Verlinde. By applying the identification between partition functions of gravity theory and the dual field theory, we find the gravitational force can be calculated from the changing of entropy induced from its dual field theory side. Unlike Verlinde's calculation, our method does not depend on other assumptions such as equipartition of energy, so it is a safe check on the entropic force idea. Also we show how entropic force can be derived by similar method from gravity side along, which will provide a clue to a better understanding on the gauge/gravity duality. At last, we study the fluctuation of the force, and we find the fluctuation acting on the point-like particle can never be larger than the expectation value of the force. For black hole in AdS space, by gauge/gravity duality, the fluctuation is induced by thermal fluctuation from field theory living on conformal boundary. And for the metric of black hole in flat space, the ratio between fluctuation and force goes to a constant$\frac{T}{m}$ at infinity. .
description: typos revised, more detailed discussion
Bondi-Metzner-Sachs symmetry, holography on null-surfaces and area proportionality of "light-slice" entropy
Creators: name: Schroer, Bert
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is shown that certain kinds of behavior, which hitherto were expected to be characteristic for classical gravity and quantum field theory in curved spacetime, as the infinite dimensional Bondi-Metzner-Sachs symmetry, holography on event horizons and an area proportionality of entropy, have in fact an unnoticed presence in Minkowski QFT. This casts new light on the fundamental question whether the volume propotionality of heat bath entropy and the (logarithmically corrected) dimensionless area law obeyed by localization-induced thermal behavior are different geometric parametrizations which share a common primordeal algebraic origin. Strong arguments are presented that these two different thermal manifestations can be directly related, this is in fact the main aim of this paper. It will be demonstrated that QFT beyond the Lagrangian quantization setting receives crucial new impulses from holography onto horizons. The present paper is part of a project aimed at elucidating the enormous physical range of "modular localization". The latter does not only extend from standard Hamitonian heat bath thermal states to thermal aspects of causal- or event- horizons addressed in this paper. It also includes the recent understanding of the crossing property of formfactors whose intriguing similarity with thermal properties was, although sometimes noticed, only sufficiently understood in the modular llocalization setting.
description: 42 pages, changes, addition of new results and new references, in this form the paper will appear in Foundations of Physics
Classical r-matrices of two and three dimensional Lie super-bialgebras and their Poisson-Lie supergroups
Creators: name: Eghbali, A.
name: Rezaei-Aghdam, A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 17B62, 17B70, 17B01, 17B30

description: We obtain the classical r-matrices of two and three dimensional Lie super-bialgebras. We thus classify all two and three dimensional coboundary Lie super-bialgebras and their types (triangular, quasi-triangular, or factorable). Using the Sklyanin superbracket, we then obtain the super Poisson structures on the related Poisson-Lie supergroups.
description: 22 pages, 14 tables
The C/O ratio at low metallicity: constraints on early chemical evolution from observations of Galactic halo stars
Creators: name: Fabbian, D.
name: Nissen, P. E.
name: Asplund, M.
name: Pettini, M.
name: Akerman, C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present new measurements of the abundances of carbon and oxygen derived from high-excitation C I and O I absorption lines in metal-poor halo stars, with the aim of clarifying the main sources of these two elements in the early stages of the chemical enrichment of the Galaxy. We target 15 new stars compared to our previous study, with an emphasis on additional C/O determinations in the crucial metallicity range -3
description: 13 pages, 8 figures, accepted for publication in Astronomy & Astrophysics
Gamma rays from Dark Matter Annihilation in the Central Region of the Galaxy
Creators: name: Serpico, Pasquale Dario
name: Hooper, Dan
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this article, we review the prospects for the Fermi satellite (formerly known as GLAST) to detect gamma rays from dark matter annihilations in the Central Region of the Milky Way, in particular on the light of the recent astrophysical observations and discoveries of Imaging Atmospheric Cherenkov Telescopes. While the existence of significant backgrounds in this part of the sky limits Fermi's discovery potential to some degree, this can be mitigated by exploiting the peculiar energy spectrum and angular distribution of the dark matter annihilation signal relative to those of astrophysical backgrounds.
description: v3: corrected typos, content unchanged
Entropy In The Present And Early Universe: New Small Parameters And Dark Energy Problem
Creators: name: Shalyt-Margolin, A. E.
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It is demonstrated that entropy and its density play a significant role in solving the problem of the vacuum energy density (cosmological constant) of the Universe and hence the dark energy problem. Taking this in mind, two most popular models for dark energy - Holographic Dark Energy Model and Agegraphic Dark Energy Model - are analyzed. It is shown that the fundamental quantities in the first of these models may be expressed in terms of a new small dimensionless parameter. It is revealed that this parameter is naturally occurring in High Energy Gravitational Thermodynamics and Gravitational Holography (UV-limit). On this basis the possibility of a new approach to the problem of Quantum Gravity is discussed. Besides, the results obtained on the uncertainty relation of the pair "cosmological constant - volume of space-time", where the cosmological constant is a dynamic quantity, are reconsidered and generalized up to the Generalized Uncertainty Relation.
description: 29 pages, Latex. v.2. Minor correction.
Magnetic interference patterns in superconducting junctions: Effects of anharmonic current-phase relations
Creators: name: Barash, Yu. S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A microscopic theory of the magnetic-field modulation of critical currents is developed for plane Josephson junctions with anharmonic current-phase relations. The results obtained allow examining temperature-dependent deviations of the modulation from the conventional interference pattern. For tunneling through localized states in symmetric short junctions with a pronounced anharmonic behavior, the deviations are obtained and shown to depend on distribution of channel transparencies. For constant transparency the deviations vanish not only near Tc, but also at T=0. If Dorokhov bimodal distribution for transparency eigenvalues holds, the averaged deviation increases with decreasing temperature and takes its maximum at T=0.
description: 6 pages, 6 figures
On the asymptotic magnitude of subsets of Euclidean space
Creators: name: Leinster, Tom
name: Willerton, Simon
Publisher: name: arXiv
Year: 2009
Subjects: subject: Metric Geometry (math.MG)
subject: Classical Analysis and ODEs (math.CA)
subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 18D20, 28A75, 54E35

description: Magnitude is a canonical invariant of finite metric spaces which has its origins in category theory; it is analogous to cardinality of finite sets. Here, by approximating certain compact subsets of Euclidean space with finite subsets, the magnitudes of line segments, circles and Cantor sets are defined and calculated. It is observed that asymptotically these satisfy the inclusion-exclusion principle, relating them to intrinsic volumes of polyconvex sets.
description: 23 pages. Version 2: updated to reflect more recent work, in particular, the approximation method is now known to calculate (rather than merely define) the magnitude; also minor alterations such as references added
On language, dimensionality, and mapping
Creators: name: Tosco, Mauro
Publisher: name: Kervan. International Journal of African and Asian Studies
Year: 2023

description: This short article discusses dimensionality in language: while many languages may be easily conceptualized as bidimensional and covering a discrete portion of the Earth’s surface, additional dimensions are provided by verticality—either physical or, more often, metaphorical (in the form of bi- and multilingualism)—and time (when nomadic peoples carry their languages around). Other languages are unidimensional, involving to all practical extents a single point in space, while still others have no physical dimension at all, and are used by diffuse communities.


The article argues that dimensionality—a key property of the nation-state—is largely responsible for how we conceptualize languages and the tools (such as the language maps) we use to represent them mentally as well as in space.
description: Kervan. International Journal of African and Asian Studies, V. 27 N. 2 (2023): Liber Amicorum Fabricio A. Pennacchietti Dicatus
Study of the field induced spectrum of hydrogen at high resolution
Creators: name: Buijs, Hendricus Leonardus
Publisher: name: University of British Columbia
Year: 2011

description: The static field induced absorption spectrum of hydrogen has been investigated at high resolution and with reliable frequency calibration over the density range from 1.5 amagat to 28 amagat. Frequencies have been extrapolated to zero density in order to obtain molecular constants for the isolated molecule. Line profiles have been compared with various functions and the simple dispersion profile seems to fit the data best over the density range studied. The linewidth, however, decreases with density until it reaches a minimum at about 2.5 amagat below which it starts to increase again. The minimum width is about 4 times less than the width of the classical doppler line. This behavior of the line width is consistent with the phenomena of "collision narrowing" in the infrared. From the intensities of the lines we obtain the isotropic polarizability (α )₁₋₀ = 1.21 cm³.
Which group velocity of light in a dispersive medium?
Creators: name: Gawhary, Omar El
name: Severini, Sergio
name: Christillin, Paolo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The interaction between a light pulse, traveling in air, and a generic linear, non-absorbing and dispersive structure is analyzed. It is shown that energy conservation imposes a constraint between the group velocities of the transmitted and reflected light pulses. It follows that the two fields propagate with group velocities depending on the dispersive properties of the environment (air) and on the transmission properties of the optical structure, and are one faster and the other slower than the incident field. In other words, the group velocity of a light pulse in a dispersive medium is reminiscent of previous interactions. One example is discussed in detail.
description: To be submitted on PRL
Common Afrasian (Afro-Asiatic) terms related to the magic, supernatural, spiritual and mythic: Etymologies and reconstructions
Creators: name: Militarev, Alexander
Publisher: name: Kervan. International Journal of African and Asian Studies
Year: 2023

description: The paper contains 38 reconstructed common Afrasian (Afro-Asiatic) terms related to the magic, supernatural, spiritual and mythic rather conditionally combined into 10 groups (Soul, essence of life; Spirits, gods, ghosts and other supernatural creatures; God, spirit as an ancestor; Wonder, miracle, fortune-telling; Evil magic; Healing magic; Sorcery as knowledge; Spell, omen, magic speech or sign; Offering, sacrifice; Mythical and fantastic animals and their origin).


Each Proto-Afrasian term is reconstructed from a set of cognate words with compatible meanings in various branches and groups of the AA superfamily based on established regular consonant correspondences. The PAA language was supposedly spoken by the human community in the Near East at the turn of the Mesolithic and Neolithic—according to my glottochronological calculations, in the last third of the 11 millennium BCE—and their original homeland was either the Levant (the author’s hypothesis) or East or North Africa.  The reconstruction can provide valuable evidence for anthropologists, archaeologists, mythologists, prehistorians.
description: Kervan. International Journal of African and Asian Studies, V. 27 N. 2 (2023): Liber Amicorum Fabricio A. Pennacchietti Dicatus
On Quadrirational Yang-Baxter Maps
Creators: name: Papageorgiou, V. G.
name: Suris, Yu. B.
name: Tongas, A. G.
name: Veselov, A. P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Algebra (math.QA)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We use the classification of the quadrirational maps given by Adler, Bobenko and Suris to describe when such maps satisfy the Yang-Baxter relation. We show that the corresponding maps can be characterized by certain singularity invariance condition. This leads to some new families of Yang-Baxter maps corresponding to the geometric symmetries of pencils of quadrics.
description: Proceedings of the workshop "Geometric Aspects of Discrete and Ultra-Discrete Integrable Systems" (Glasgow, March-April 2009)
Surface projective convexe de volume fini
Creators: name: Marquis, Ludovic
Publisher: name: arXiv
Year: 2009
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: A convex projective surface is the quotient of a properly convex open $Ω$ of $\mathbb{P}(\R)$ by a discret subgroup $Γ$ of $\mathrm{SL}_3(\R)$. We give some caracterisations of the fact that a convex projective surface is of finite volume for the Busemann's measure. We deduce of this that if $Ω$ is not a triangle then $Ω$ is strictly convex, with $\Cc^1$ boundary and that a convex projective surface $S$ is of finite volume if and only if the dual surface is of finite volume.
description: To be publish in: Annales de l'Institut Fourier
Constellations, plants and Arab poetry in a Medieval Berber text
Creators: name: Brugnatelli, Vermondo
Publisher: name: Kervan. International Journal of African and Asian Studies
Year: 2023

description: This paper discusses one paragraph of the Kitāb al-Barbariyya, a medieval Berber commentary on Abū Ġānim’s Mudawwana. The brief note examined is a comment on the answer to a legal question, which mentions the ancient Berber names of a constellation and of a plant, quoting two lines of Arabic poetry. The passage occupies seven lines (f. 126b, ll. 8-14) of the manuscript MS.ARA 1936 found at the Bibliothèque universitaire des langues et civilisations (BULAC) of Paris. The Berber words retrieved from this text are Amanar, the name of the constellation of Orion, and tabduɣt, the name of the cotton plant. Moreover, in this ancient text, the word (a)kermus, which in the contemporary Berber languages applies to some specific plants (figs, prickly pears, dates), and which, in this case, seems to mean simply ‘fruit’, which supports a possible etymology from the Greek karpós. A list of Arab authors quoted within the Kitāb al-Barbariyya is added at the end of the paper.
description: Kervan. International Journal of African and Asian Studies, V. 27 N. 2 (2023): Liber Amicorum Fabricio A. Pennacchietti Dicatus
Putting fragments in context: An analysis of 4Q468 fragment B
Creators: name: Martone, Corrado
Publisher: name: Kervan. International Journal of African and Asian Studies
Year: 2023

description: This note presents a linguistic and paleographic analysis of the Qumranic fragment 4Q468a-d Frag. b [olim 4QUnid Frg. D]. Although this is a very fragmentary text, an attempt is made to contextualize it within the Qumranic literature by highlighting connections with the well-known Qumranic themes of light and the importance of priesthood. This fragment aligns with the overall theme of celebrating and elevating the importance of the priesthood within the community. It is possible that the fragment also alludes to the circumstances in Jerusalem that ultimately brought about the downfall of the Zadokite priesthood.
description: Kervan. International Journal of African and Asian Studies, V. 27 N. 2 (2023): Liber Amicorum Fabricio A. Pennacchietti Dicatus
Linguistic phenomena from the Aksumite Collection (CAe 1047)
Creators: name: Bausi, Alessandro
Publisher: name: Kervan. International Journal of African and Asian Studies
Year: 2023

description: The long series of fruitful workshops and conferences on Afro-Asiatic linguistics, vividly evoked by Fabrizio Angelo Pennacchietti in a recent contribution, was also the occasion for me to deliver a paper (‘Ancient Features of Ancient Ethiopic’, 2005) that was a minor version of a longer contribution published in the journal Aethiopica (2005), but condensed in its essential elements for the proceedings of the Ragusa–Ibla conference. This paper substantially updates those attempts and provide an assessment of the fertility of that research direction.
description: Kervan. International Journal of African and Asian Studies, V. 27 N. 2 (2023): Liber Amicorum Fabricio A. Pennacchietti Dicatus
Model theory of operator algebras I: Stability
Creators: name: Farah, Ilijas
name: Hart, Bradd
name: Sherman, David
Publisher: name: arXiv
Year: 2009
Subjects: subject: Operator Algebras (math.OA)
subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03C45, 03C98, 46L05, 46L10, 46M07

description: Several authors have considered whether the ultrapower and the relative commutant of a C*-algebra or II_1 factor depend on the choice of the ultrafilter. We settle each of these questions, extending results of Ge-Hadwin and the first author.
description: 15 pages; v3 - some rewriting
Feuilletages et transformations périodiques
Creators: name: Cerveau, Dominique
name: Déserti, Julie
Publisher: name: arXiv
Year: 2009
Subjects: subject: Algebraic Geometry (math.AG)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 14E07, 37F75

description: Bertini classified the birational involutions of the complex projective plane, but his geometric approach does not allow to explicit these maps easily. In this article, we present an effective approach to this problem by associating to each quadratic foliation a birational involution which is, in the generic case, a Geiser involution; this subject has already been covered by Geiser, Milinowski, Williams and alt. We end by making experiences, obtaining trivolutions from some foliations of degree 3.
description: In French, 19 pages, 2 figures, references added, proposition 5.2 has been changed, accepted in Experiment. Math.