cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Exploring families of energy-dissipation landscapes via tilting -- Three types of EDP convergence
Creators: name: Mielke, Alexander
name: Montefusco, Alberto
name: Peletier, Mark A.
Publisher: name: Weierstrass Institute
Year: 2019
Subjects: subject: Gradient systems
subject: energy-dissipation principle
subject: wiggly-energy model
subject: wiggly-dissipation model
subject: simple EDP convergence
subject: EDP convergence with tilting
subject: contact EDP convergence with tilting
subject: 49S05
subject: 47J30
subject: 35K55
subject: 35A15
subject: 49J45

description: This paper revolves around a subtle distinction between two concepts: passing to the limit in a family of gradient systems, on one hand, and deriving effective kinetic relations on the other. The two concepts are strongly related, and in many examples they even appear to be the same. Our main contributions are to show that they are different, to show that well-known techniques developed for the former may give incorrect results for the latter, and to introduce new tools to remedy this. The approach is based on the Energy-Dissipation Principle that provides a variational formulation to gradient-flow equations that allows one to apply techniques from Γ-convergence of functional on states and functionals on trajectories.
Complexity of the forward kinematic map
Creators: name: Pavešić, Petar
Publisher: name: arXiv
Year: 2017
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 70E60 (Primary), 68T40, 70Q05, 93C85 (Secondary)

description: The main objective of this paper is to introduce a new method for qualitative analysis of various designs of robot arms. To this end we define the complexity of a map, examine its main properties and develop some methods of computation. In particular, when applied to a forward kinematic map associated to some robot arm structure, the complexity measures the inherent discontinuities that arise when one attempts to solve the motion planning problem for any set of input data. In the second part of the paper, we consider instabilities of motion planning in the proximity of singular points, and present explicit computations for several common robot arm configurations.
description: 22 pages, 4 figures, revised version published in Mechanism and Machine Theory
Non-Fermi liquid behavior in the magnetotransport of CeMIn5 (M: Co and Rh): Striking similarity between quasi 2D heavy fermion and high-Tc cuprates
Creators: name: Nakajima, Y.
name: Shishido, H.
name: Nakai, H.
name: Shibauch, T.
name: Behnia, K.
name: Izawa, K.
name: Hedo, M.
name: Uwatoko, Y.
name: Matsumoto, T.
name: Settai, R.
name: Onuki, Y.
name: Kontani, H.
name: Matsuda, Y.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present a systematic study of the dc-resistivity, Hall effect, and magnetoresistance in the normal state of quasi 2D heavy fermion superconductors CeMIn5 (M: Rh and Co) under pressure. Here the electronic system evolves with pressure from an antiferromagnetic (AF) metal, through a highly unconventional non-Fermi liquid, and finally into a Fermi-liquid state. The amplitude of the Hall coefficient increases dramatically with decreasing T, reaching at low temperatures a value significantly larger than 1/ne. Furthermore, the magnetoresistance is characterized by T- and H-dependence which clearly violate Kohler's rule. We found that the Hall angle cotΘvaries as T^2, and the magnetoresistance is well scaled by the Hall angle as Δρ_{xx}/ρ_{xx}\propto \tan^2Θ. These non-Fermi liquid properties in the electron transport are remarkably pronounced when the AF fluctuations are enhanced in the vicinity of the QCP. We lay particular emphasis on the striking resemblance of these anomalous magnetotransport with those of the high-Tc cuprates. We argue that features commonly observed in quasi 2D heavy fermion and cuprates very likely capture universal features of strongly correlated electron systems.
description: 16 pages, 15 figures
Inference With Dyadic Data: Asymptotic Behavior of the Dyadic-Robust t-Statistic
Creators: name: Tabord-Meehan, Max
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy

description: This article is concerned with inference in the linear model with dyadic data. Dyadic data are indexed by pairs of “units;” for example, trade data between pairs of countries. Because of the potential for observations with a unit in common to be correlated, standard inference procedures may not perform as expected. We establish a range of conditions under which a t-statistic with the dyadic-robust variance estimator of Fafchamps and Gubert is asymptotically normal. Using our theoretical results as a guide, we perform a simulation exercise to study the validity of the normal approximation, as well as the performance of a novel finite-sample correction. We conclude with guidelines for applied researchers wishing to use the dyadic-robust estimator for inference.
Thermal Fluctuations And Correlations Among Hairs Of Stable Quantum ADS Kerr-Newman Black Hole
Creators: name: Sinha, Aloke Kumar
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We have already derived the Criteria for thermal stability of charged rotating quantum black holes, for horizon areas that are large relative to the Planck area. The derivation is done by using results of loop quantum gravity and equilibrium statistical mechanics of the Grand Canonical ensemble. It is also shown that in four dimensional spacetime, quantum ADS Kerr-Newman Black hole is thermally stable within certain range of its' parameters. In this paper, the expectation values of fluctuations and correlations among horizon area, charge and angular momentum of stable quantum ADS black hole are calculated within the range of stability. Interestingly, it is found that leading order fluctuations of charge and angular momentum, in large horizon area limit, are independent of the values of charge and angular momentum at equilibrium.
description: arXiv admin note: substantial text overlap with arXiv:1608.08359, arXiv:1512.04181
The role of initial geometry in experimental models of wound closing
Creators: name: Jin, Wang
name: Lo, Kai-Yin
name: Chou, Shih-En
name: McCue, Scott W
name: Simpson, Matthew J
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cell Behavior (q-bio.CB)
subject: FOS: Biological sciences

description: Wound healing assays are commonly used to study how populations of cells, initialised on a two-dimensional surface, act to close an artificial wound space. While real wounds have different shapes, standard wound healing assays often deal with just one simple wound shape, and it is unclear whether varying the wound shape might impact how we interpret results from these experiments. In this work, we describe a new kind of wound healing assay, called a sticker assay, that allows us to examine the role of wound shape in a series of wound healing assays performed with fibroblast cells. In particular, we show how to use the sticker assay to examine wound healing with square, circular and triangular shaped wounds. We take a standard approach and report measurements of the size of the wound as a function of time. This shows that the rate of wound closure depends on the initial wound shape. This result is interesting because the only aspect of the assay that we change is the initial wound shape, and the reason for the different rate of wound closure is unclear. To provide more insight into the experimental observations we describe our results quantitatively by calibrating a mathematical model, describing the relevant transport phenomena, to match our experimental data. Overall, our results suggest that the rates of cell motility and cell proliferation from different initial wound shapes are approximately the same, implying that the differences we observe in the wound closure rate are consistent with a fairly typical mathematical model of wound healing. Our results imply that parameter estimates obtained from an experiment performed with one particular wound shape could be used to describe an experiment performed with a different shape. This fundamental result is important because this assumption is often invoked, but never tested.
Mercury Sixtieths - Ptolemy's Almagest by Toomer (Gerald J.) (1984) | Type-B (ID n° 380)
Creators: name: Toomer, Gerald J.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2021
Subjects: Astronomy
Medieval history

description: This is a type B edition: A type-B edition corresponds to a critical edition of several table witnesses:
 it is based on several different editions, themselves based on tables from different primary sources.
 A type-B edition can be based on type-A, type-B or type-C editions.
You can find it on the DISHAS project website from this link: https://dishas.obspm.fr/table-edition/380
description: Source: Ptolemy's Almagest, Toomer (Gerald J.), 1984
Broad band spectrum of Cygnus X-1 in two spectral states with BeppoSAX
Creators: name: Frontera, F.
name: Palazzi, E.
name: Zdziarski, A. A.
name: Haardt, F.
name: Perola, G. C.
name: Chiappetti, L.
name: Cusumano, G.
name: Fiume, D. Dal
name: Del Sordo, S.
name: Orlandini, M.
name: Parmar, A. N.
name: Piro, L.
name: Santangelo, A.
name: Segreto, A.
name: Treves, A.
name: Trifoglio, M.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on the 0.5--200 keV spectral properties of Cyg X-1 observed at different epochs with the Narrow Field Instruments of the BeppoSAX satellite. The source was in its soft state during the first observation of 1996 June. In the second observation of 1996 September, the source had parameters characteristic to its hard state. A soft X-ray excess, a broad Fe K$α$ line and Compton reflection are clearly detected in both states. The soft-state broad-band continuum is well modeled by a disk blackbody (accounting for the soft excess) and Compton upscattering of the disk photons by a hybrid, thermal/non-thermal, plasma, probably forming a corona above the disk (also giving rise to the Compton-reflection component). In the hard state, the primary hard X-ray spectrum can be well modeled by Compton upscattering of a weak blackbody emission by a thermal plasma at a temperature of $\sim 60$ keV. The soft excess is then explained by thermal Comptonization of the same blackbody emission by another hot plasma cloud characterized by a low value of its Compton parameter. Finally, we find the characteristic ratio of the bolometric flux in the soft state to that in the hard state to be about 3. This value is much more compatible with theories of state transitions than the previously reported (and likely underestimated) value of 1.5.
description: 15 pages, 5 figures. Accepted for publication in ApJ
Partially incoherent gap solitons in Bose-Einstein condensates
Creators: name: Merhasin, I. M.
name: Malomed, Boris A.
name: Band, Y. B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We construct families of incoherent matter-wave solitons in a repulsive degenerate Bose gas trapped in an optical lattice (OL), i.e., gap solitons, and investigate their stability at zero and finite temperature, using the Hartree-Fock-Bogoliubov equations. The gap solitons are composed of a coherent condensate, and normal and anomalous densities of incoherent vapor co-trapped with the condensate. Both intragap and intergap solitons are constructed, with chemical potentials of the components falling in one or different bandgaps in the OL-induced spectrum. Solitons change gradually with temperature. Families of intragap solitons are completely stable (both in direct simulations, and in terms of eigenvalues of perturbation modes), while the intergap family may have a very small unstable eigenvalue (nevertheless, they feature no instability in direct simulations). Stable higher-order (multi-humped) solitons, and bound complexes of fundamental solitons are found too.
description: 8 pages, 9 figures. Physical Review A, in press
Gas contents of galaxy groups from thermal Sunyaev-Zel'dovich effects
Creators: name: Lim, Seunghwan
name: Mo, Houjun
name: Li, Ran
name: Liu, Yue
name: Ma, Yin-Zhe
name: Wang, Huiyuan
name: Yang, Xiaohu
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: A matched filter technique is applied to the Planck all-sky Compton y-parameter map to measure the thermal Sunyaev-Zel'dovich (tSZ) effect produced by galaxy groups of different halo masses selected from large redshift surveys in the low-z Universe. Reliable halo mass estimates are available for all the groups, which allows us to bin groups of similar halo masses to investigate how the tSZ effect depends on halo mass over a large mass range. Filters are simultaneously matched for all groups to minimize projection effects. We find that the integrated y-parameter and the hot gas content it implies are consistent with the predictions of the universal pressure profile model only for massive groups above $10^{14}\,{\rm M}_\odot$, but much lower than the model prediction for low-mass groups. The halo mass dependence found is in good agreement with the predictions of a set of simulations that include strong AGN feedback, but simulations including only supernova feedback significantly over predict the hot gas contents in galaxy groups. Our results suggest that hot gas in galaxy groups is either effectively ejected or in phases much below the virial temperatures of the host halos.
description: 7 pages, 3 figures, submitted to ApJ
Dataset HPV 2018
Creators: name: Mendoza, Juana Del Valle
name: Ponce-Benavente, Luis
name: Rejas-Pinelo, Patricia
name: Aguilar-Luis, Miguel Angel
name: Palomares-Reyes, Carlos
name: Becerra-Goicochea, Lorena
name: Pinillos-Vilca, Luis
name: Silva-Caso, Wilmer
name: Costa, Luis
name: Weilg, Pablo
name: Alvitrez-Arana, Juan
name: Bazán-Mayra, Jorge
Publisher: name: figshare
Year: 2018
Subjects: subject: 60502 Infectious Agents
subject: FOS: Biological sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Frequency and coinfection between genotypes of Human papillomavirus in a population of asymptomatic women in northern Peru.
Objective: Describe the prevalence of HPV genotypes via PCR and DNA sequencing in 397 women who attended to the gynecological outpatient clinic in the Hospital Regional Docente de Cajamarca from March to September 2017. Results: A positive PCR result for HPV was observed in 121 cervical samples. A high-risk genotype was found in 63.6% (77/121) of patients, a probably oncogenic type in 23.1% (28/121) and a low-risk type in 7.4%. Among the high-risk genotypes, HPV-31 was the most common one present in 20% (21/77), followed by HPV-16 in 11.4% (12/77). Coinfections between two or more genotypes were observed in 12 cases.
The Spectral Problem for the q-Knizhnik-Zamolodchikov Equation
Creators: name: Freund, Peter G. O.
name: Zabrodin, Anton V.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyse the spectral problem for the q-Knizhnik-Zamolodchikov equations for $U_q(\widehat{sl_2}) (0 < q \leq 1)$ at level zero. The case of 2-point functions in the fundamental representation is studied in detail. The scattering states are found explicitly in terms of continuous q-Jacobi polynomials. The corresponding S-matrix is shown to coincide, up to a trivial factor, with the kink-antikink S-matrix in the spin-1/2 XXZ antiferromagnet.
description: 11 pages
Anderson localization of solitons in optical lattices with random frequency modulation
Creators: name: Vysloukh, Yaroslav V. Kartashov Victor A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report on phenomenon of Anderson-type localization of walking solitons in optical lattices with random frequency modulation, manifested as dramatic enhancement of soliton trapping probability on lattice inhomogeneities with growth of the frequency fluctuation level. The localization process is strongly sensitive to the lattice depth since in shallow lattices walking solitons experience random refraction and/or multiple scattering in contrast to relatively deep lattices, where solitons are typically immobilized in the vicinity of local minimums on modulation frequency.
description: 13 pages, 4 figures, to appear in Physical Review E
Four years' interferometric observations of Galactic binary Cepheids
Creators: name: Gallenne, A.
name: Merand, A.
name: Kervella, P.
name: Evans, N. R.
name: Profitt, C.
name: Pietrzynski, G.
name: Gieren, W.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We give an update on our long-term program of Galactic Cepheids started in 2012, whose goal is to measure the visual orbits of Cepheid companions. Using the VLTI/PIONIER and CHARA/MIRC instruments, we have now detected several com- panions, and we already have a good orbital coverage for several of them. By combining interferometry and radial velocities, we can now derive all the orbital elements of the systems, and we will be soon able to estimate the Cepheid masses.
description: 2 pages, 1 figure, proceedings of the 22nd Los Alamos Stellar Pulsation Conference "Wide-field variability surveys: a 21st-century perspective" held in San Pedro de Atacama, Chile, Nov. 28-Dec. 2, 2016
Properties of Convective Oxygen and Silicon Burning Shells in Supernova Progenitors
Creators: name: Collins, C.
name: Müller, B.
name: Heger, A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Recent three-dimensional simulations have suggested that convective seed perturbations from shell burning can play an important role in triggering neutrino-driven supernova explosions. Since isolated simulations cannot determine whether this perturbation-aided mechanism is of general relevance across the progenitor mass range, we here investigate the pertinent properties of convective oxygen and silicon burning shells in a broad range of presupernova stellar evolution models. We find that conditions for perturbation-aided explosions are most favourable in the extended oxygen shells of progenitors between about 16 and 26 solar masses, which exhibit large-scale convective overturn with high convective Mach numbers. Although the highest convective Mach numbers of up to 0.3 are reached in the oxygen shells of low-mass progenitors, convection is typically dominated by small-scale modes in these shells, which implies a more modest role of initial perturbations in the explosion mechanism. Convective silicon burning rarely provides the high Mach numbers and large-scale perturbations required for perturbation-aided explosions. We also find that about $40\%$ of progenitors between 16 and 26 solar masses exhibit simultaneous oxygen and neon burning in the same convection zone as a result of a shell merger shortly before collapse.
description: 10 pages, 7 figures, accepted for publication in MNRAS
Maximum Disk Mass Models for Spiral Galaxies
Creators: name: Palunas, Povilas
name: Williams, T. B.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present axisymmetric maximum disk mass models for a sample of 74 spiral galaxies taken from the southern sky Fabry-Perot Tully-Fisher survey (Schommer et al. 1993). The sample contains galaxies spanning a large range of morphologies and having rotation widths from 180 km/sec to 680 km/secs. For each galaxy we have an I-band image and a 2-d H_alpha velocity field. The distribution of mass is modeled as a sum of disk and bulge components with distinct, constant mass-to-light ratios. No dark matter halo is included in the fits. The models reproduce the overall structure of the rotation curves in the majority of galaxies, providing good fits to galaxies which exhibit pronounced structural differences in their surface brightness profiles. 75% of galaxies for which the rotation curve is measured to R_23.5 or beyond are well fit by a mass-traces-light model for the entire region within R_23.5. The models for about 20% of the galaxies do not fit well; the failure of most of these models is traced directly to non-axisymmetric structures, primarily bars but also strong spiral arms. The median I-band M/L of the disk plus bulge is 2.4+/-0.9 h_75 in solar units, consistent with normal stellar populations. These results require either that the mass of dark matter within the optical disk of spiral galaxies is small, or that its distribution is very precisely coupled to the distribution of luminous matter.
description: accepted by AJ, 29 pages, 8 figures, uses emulateapj.sty
Alcohol retail sales licenses and sexually transmitted infections in Texas counties, 2008-2015
Creators: name: Rossheim, Matthew E.
name: Krall, Jenna R.
name: Painter, Julia E.
name: Thombs, Dennis L.
name: Stephenson, Caroline J.
name: Sumihiro Suzuki
name: M. Brad Cannell
name: Livingston, Melvin D.
name: Kwynn M. Gonzalez-Pons
name: Wagenaar, Alexander C.
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Background: Research suggests that reduced retail alcohol outlet density may be associated with lower prevalence of HIV and other sexually transmitted infections (STIs). On-premise sale of alcohol for immediate consumption is theorized as increasing social interactions that can lead to sexual encounters. Objective: We examined associations between on- and off-premise retail alcohol sales licenses and number of newly diagnosed HIV and STI cases in Texas counties. Methods: Retail alcohol sales license data were obtained from the Texas Alcoholic Beverage Commission. HIV and bacterial STI data were obtained from the Texas Department of State Health Services. Associations between retail alcohol sales licenses and STIs were estimated using spatial linear models and Poisson mixed effects models for over-dispersed count data. Results: Adjusting for county-specific confounders, there was no evidence of residual spatial correlation. In Poisson models, each additional on-premise (e.g., bar and restaurant) alcohol license per 10,000 population in a county was associated with a 1.5% increase (95% CI: 0.4%, 2.6%) in the rate of HIV and a 2.4% increase (95% CI: 1.9%, 3.0%) in the rate of bacterial STIs, adjusting for potential confounders. In contrast, number of off-premise licenses (e.g., take-out stores) was inversely associated with the incidence of STI and HIV, although the association with HIV was not statistically significant. Conclusions: This study adds to the limited literature on the association between retail alcohol availability and STIs. Additional research is needed on the role of alcohol availability (and policies affecting availability) in the spread of HIV and other STIs.
Jupiter mean argument (calendrical)_Tabule magne_Recomputed by Husson (Matthieu) (2022) | Type-C (ID n° 859)
Creators: name: Husson, Matthieu
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2022
Subjects: Astronomy
History of astronomy
DISHAS
Astronomical table

description: This is a type C edition: A type-C edition is a recalculated version of a table using modern computation methods.
You can find it on the DISHAS project website from this link: https://dishas.obspm.fr/table-edition/859
Factorised steady states for multi-species mass transfer models
Creators: name: Hanney, T.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A general class of mass transport models with Q species of conserved mass is considered. The models are defined on a lattice with parallel discrete time update rules. For one-dimensional, totally asymmetric dynamics we derive necessary and sufficient conditions on the mass transfer dynamics under which the steady state factorises. We generalise the model to mass transfer on arbitrary lattices and present sufficient conditions for factorisation. In both cases, explicit results for random sequential update and continuous time limits are given.
description: 11 pages
Dynamical masses of Cepheids from the GAIA parallaxes
Creators: name: Gallenne, A.
name: Kervella, P.
name: Merand, A.
name: Evans, N. R.
name: Proffitt, C.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The mass of a Cepheid is a fundamental parameter for studying the pulsation and evolution of intermediate-mass stars. But determining this variable has been a long-standing problem for decades. Detecting the companions (by spectroscopy or imaging) is a difficult task because of the brightness of the Cepheids and the close orbit of the components. So most of the Cepheid masses are derived using stellar evolution or pulsation modeling, but they differ by 10-20%. Measurements of dynamical masses offer the unique opportunity to make progress in resolving this mass discrepancy. The first problem in studying binary Cepheids is the high contrast between the components for wavelengths longer than 0.5 μm, which make them single-line spectroscopic binaries. In addition, the close orbit of the companions (< 40 mas) prevents us from spatially resolving the systems with a single-dish 8m-class telescope. A technique able to reach high spatial resolution and high- dynamic range is long-baseline interferometry. We have started a long-term program that aims at detecting, monitoring and characterizing physical parameters of the Cepheid companions. The GAIA parallaxes will enable us to combine interferometry with single-line velocities to provide unique dynamical mass measurements of Cepheids.
description: 2 pages, 1 figure, proceedings of the conference "Astrometry and Astrophysics in the Gaia sky" held in Nice, France, Apr. 24-28, 2017. arXiv admin note: text overlap with arXiv:1707.00691
The Kuiper Belt and Olbers Paradox
Creators: name: Kenyon, Scott J.
name: Windhorst, Rogier A.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the constraints that Olbers Paradox, applied to the Zodiacal Background as measured from space, sets on outer solar system objects. If extended to very faint limits, R = 40--50 mag, the steep optical luminosity function (LF) of Kuiper Belt objects (KBOs) at R less than 26 mag implies an infinitely bright night sky. Small KBOs with radii of 1 mm to 1 km must have a size distribution n(r) proportional to r^{-a}, with a = 3.5 or smaller to satisfy the known limits on the sky-surface brightness at optical and far-infrared wavelengths. Improved limits on the measured KBO surface brightness can yield direct estimates of the albedo, temperature, and size distribution for small KBOs in the outer solar system.
description: 4 pages and 2 figures; submitted to Astrophysical Journal Letters
Comments on the Gribov Ambiguity
Creators: name: Kalogeropoulos, Nikolaos
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the existence of Gribov ambiguities in $SU(m)\times U(1)$ gauge theories over the $n-$spheres. We achieve our goal by showing that there is exactly one conjugacy class of groups of gauge transformations for the theories given above. This implies that these transformation groups are conjugate to the ones of the trivial $SU(m)\times U(1)$ fiber bundles over the $n-$spheres. By using properties of the space of maps $Map_{\ast}(S^n,G)$ where $G$ is one of $U(1)$, $SU(m)$ we are able to determine the homotopy type of the groups of gauge transformations in terms of the homotopy groups of $G$. The non-triviality of these homotopy groups gives the desired result.
description: 13 pages, SU-HEP-4241-531, LaTeX
[Doyle, H., to W. A. Found, Department of Fisheries, regarding hiring of Overseer for the Naas River district]
Creators: name: Doyle, Henry, 1874-1961
Publisher: name: The University of British Columbia
Year: 2018

description: Typewritten letter dated 20 October 1921. Stamped "H. Bell Irving & Co. Ltd, Vancouver, B.C." with date Oct 22 1921
Fermionic Light Dark Matter particles and the New Physics of Neutron Stars
Creators: name: Cermeño, M.
name: Pérez-García, M. Ángeles
name: Silk, Joseph
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Dark Matter constitutes most of the matter in the presently accepted cosmological model for our Universe. The extreme conditions of ordinary baryonic matter, namely high density and compactness, in Neutron Stars make these objects suitable to gravitationally accrete such a massive component provided interaction strength between both, luminous and dark sectors, at current experimental level of sensitivity. We consider several different DM phenomenological models from the myriad of those presently allowed. In this contribution we review astrophysical aspects of interest in the interplay of ordinary matter and a fermionic light Dark Matter component. We focus in the interior nuclear medium in the core and external layers, i.e. the crust, discussing the impact of a novel dark sector in relevant stellar quantities for (heat) energy transport such as thermal conductivity or emissivities.
description: 12 pages, 7 figures, 1 table. Review contribution
title: ADCO, Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome VIII, Cart. 192 (11 H 77), 295 folios, f. 0060r
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire
subject: Corpus Burgundiae Medii Aevi

description: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome VIII, Archives départementales de la Côte-d'Or, Cart. 192 (11 H 77), 295 folios, f. 0060r, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome VIII, Archives départementales de la Côte-d'Or, Cart. 192 (11 H 77), 295 folios, f. 0060r, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
Two new lipid analogues from the soft coral Sinularia flexibilis
Creators: name: Yanhong Ma
name: Haizhou Zhao
name: Zhifang Duan
name: Qianqian Yuan
name: Wenhua Liu
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Cell Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: Soft corals of the genus Sinularia are widely distributed in the South China Sea. Two new lipid analogues (Z)-N-(3,4-dihydroxyphenethyl)-3-methyldo-dec-2-enamide (1) and (E)-1-(2,5-dihydroxy-4-methylphenyl)-6-acetoxy-2,3,7-trihydroxy-3,7,11,15-tetramethylhexadeca-11,14-dien (2), together with three known compounds (3–5) were isolated from the soft coral Sinularia flexibilis. Their structures were elucidated on the basis of extensive spectroscopic analysis, including one and two-dimensional NMR, MS, IR, UV, as well as by comparison with published data.
Recent Experimental Tests of Special Relativity
Creators: name: Wolf, Peter
name: Bize, Sebastien
name: Tobar, Michael E.
name: Chapelet, Frederic
name: Clairon, Andre
name: Luiten, Andre N.
name: Santarelli, Giorgio
Publisher: name: arXiv
Year: 2005
Subjects: subject: Classical Physics (physics.class-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We review our recent Michelson-Morley (MM) and Kennedy-Thorndike (KT) experiment, which tests Lorentz invariance in the photon sector, and report first results of our ongoing atomic clock test of Lorentz invariance in the matter sector. The MM-KT experiment compares a cryogenic microwave resonator to a hydrogen maser, and has set the most stringent limit on a number of parameters in alternative theories to special relativity. We also report first results of a test of Lorentz invariance in the SME (Standard Model Extension) matter sector, using Zeeman transitions in a laser cooled Cs atomic fountain clock. We describe the experiment together with the theoretical model and analysis. Recent experimental results are presented and we give a first estimate of components of the $\tilde{c}^p$ parameters of the SME matter sector. A full analysis of systematic effects is still in progress, and will be the subject of a future publication together with our final results. If confirmed, the present limits would correspond to first ever measurements of some $\tilde{c}^p$ components, and improvements by 11 and 14 orders of magnitude on others.
description: 29 pages. Contribution to Springer Lecture Notes, "Special Relativity - Will it survive the next 100 years ?", Proceedings, Potsdam, 2005
[Monsieur l'Administrateur Général, Suite aux conversations]
Creators: name: Saúl, Yurkievich
name: Yurkievich, Saúl
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2021
Subjects: Biblioteca Nacional de Francia
Fondo de archivos Cortázar

description: Carta dirigida al Señor Administrador General de la Biblioteca Nacional. Proposición de dejar un fondo bibliográfico procediendo de la colección de Julio Cortázar a la Biblioteca Nacional.
description: Destinatario: Le Rider, Georges
description: Source: Num.Ref. : JC-DY-CAR-01.002
description: Source: Localización del archivo: Centre de Recherches Latino-Américaines (CRLA–Archivos, ITEM UMR8132). MSHS - Bât. A5, 1er étage 5 rue Théodore Lefebvre - TSA21103. 86073 Poitiers cedex 9.
Lyα Absorption at Transits of HD 209458b: A Comparative Study of Various Mechanisms Under Different Conditions
Creators: name: Khodachenko, M. L.
name: Shaikhislamov, I. F.
name: Lammer, H.
name: Kislyakova, K. G.
name: Fossati, L.
name: Johnstone, C. P.
name: Arkhypov, O. V.
name: Berezutsky, A. G.
name: Miroshnichenko, I. B.
name: Posukh, V. G.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: To shed more light on the nature of the observed Lyα absorption during transits of HD 209458b and to quantify the major mechanisms responsible for the production of fast hydrogen atoms (the so called energetic neutral atoms, ENAs) around the planet, 2D hydrodynamic multifluid modeling of the expanding planetary upper atmosphere, which is driven by stellar XUV, and its interaction with the stellar wind has been performed. The model selfconsistently describes the escaping planetary wind, taking into account the generation of ENAs due to particle acceleration by the radiation pressure and by the charge exchange between the stellar wind protons and planetary atoms. The calculations in a wide range of stellar wind parameters and XUV flux values showed that under typical Sun-like star conditions, the amount of generated ENAs is too small, and the observed absorption at the level of 6-8 percent can be attributed only to the non-resonant natural line broadening. For lower XUV fluxes, e.g., during the activity minima, the number of planetary atoms that survive photoionization and give rise to ENAs increases, resulting in up to 10-15 percent absorption at the blue wing of the Lya line, caused by resonant thermal line broadening. A similar asymmetric absorption can be seen under the conditions realized during coronal mass ejections, when sufficiently high stellar wind pressure confines the escaping planetary material within a kind of bowshock around the planet. It was found that the radiation pressure in all considered cases has a negligible contribution to the production of ENAs and the corresponding absorption.
description: open access
Methods to determine the Hausdorff dimension of vortex loops in the three-dimensional XY model
Creators: name: Camarda, M.
name: Siringo, F.
name: Pucci, R.
name: Sudbo, A.
name: Hove, J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The geometric properties of critical fluctuations in the 3D XY model are analyzed. The 3D XY model is a lattice model describing superfluids. We present a direct evaluation of the Hausdorff dimension D_H of the vortex loops which are the critical fluctuations of the 3D XY model. We also present analytical arguments for why \vartheta in the scaling relation η_ϕ + D_H = 2 + \vartheta between D_H and the anomalous scaling dimension of the corresponding field theory, must be zero.
description: To appear in Phys. Rev. B
"ЖАМОАТ ХАВФСИЗЛИГИ ДЕПАРТАМЕНТИНИНГ ҲУҚУҚБУЗАРЛИКЛАР ПРОФИЛАКТИКАСИ ТИЗИМИНИ ТАКОМИЛЛАШТИРИШ ЙЎНАЛИШЛАРИ"
Creators: name: Бабаханов, Ҳамдам
name: Хасанов, Аброржон
Publisher: name: Zenodo
Year: 2025

description: Мақолада Жамоат хавфсизлиги департаментининг ҳуқуқбузарликларнинг олдини олиш (профилактика) бўйича ишларни ташкил этиш ва мувофиқлаштириш фаолиятини такомиллаштириш масалалари ёритилган. Тадқиқотда ҳуқуқбузарликларнинг сабаблари, уларнинг олдини олишнинг замонавий усуллари ва департаментнинг бу соҳадаги ишини яхшилаш йўллари кўриб чиқилган. Мақолада профилактика фаолиятининг самарадорлигини ошириш учун янги технологияларни жорий этиш, ҳамкорликни кучaйтириш ва фаолият бўйича таклифлар баён қилинган. Натижалар департаментнинг ҳуқуқбузарликларнинг олдини олишдаги ижтимоий ва ташкилий механизмларни такомиллаштиришга йўналтирилган.
SNU_Aamp AaCP43-1 translated sequences. from Comparative analysis of stalked and acorn barnacle adhesive proteomes
Creators: name: Schultzhaus, Janna N.
name: Hervey, William Judson
name: Taitt, Chris R.
name: So, Chris R.
name: Leary, Dagmar H.
name: Wahl, Kathryn J.
name: Spillmann, Christopher M.
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Biochemistry
subject: 60114 Systems Biology
subject: FOS: Biological sciences

description: SNU_Aamp AaCP43-1 translated sequences. A) Predicted translations from the two identified open reading frames in VIIS01002005.1:7993-9427. B) Multiple sequence alignment of the SNU_Aamp and NRL AaCP43-1 sequences. AaCP43-1 aligns with Sequence 1 for 13% of its length with 43% similarity (E value = 0.002) and with Sequence 2 for 67% of its length with 87% identity (E value = 2e-153).
title: Determination of the Rate Constant for Reaction of Ozone with 1-Hexene in Water
Creators: name: Mashankar, Pranav
Publisher: name: University of Massachusetts Amherst
Year: 2018
Subjects: subject: disinfection byproducts
subject: ozonation
subject: Wachusett Reservoir
subject: Civil and Environmental Engineering
subject: Environmental Engineering
subject: FOS: Environmental engineering

description: Low molecular weight aldehydes such as formaldehyde may be formed as disinfection byproducts (DBPs) of ozonation when low molecular weight, aliphatic, alpha olefins are present as contaminants in water. Such alkenes form a small but significant part of crude oil, and would therefore be present in water contaminated with an oil spill. This project studied the kinetics of the reaction between ozone and 1-hexene in water as part of a study to predict the effects of an oil spill on the water quality in the Wachusett reservoir in Massachusetts. The data for the reaction rate constant for the aqueous ozonolysis of low molecular linear alpha olefins that are liquid under ambient conditions (such as 1-hexene) is sparse in existing literature, and such data would be essential to any attempt to model the formation of DBPs due to ozonation of water contaminated with crude oil. Two methods were used to measure the rate constant for the reaction between ozone and 1-hexene in water. The first method used direct spectrophotometry, and measured the concentration of ozone over time as it was reacted with an excess of 1-hexene. The data was then fit to a pseudo first order kinetic model and the reaction rate constant was calculated. The rate constant calculated using the above method was found to be many orders of magnitude smaller than those for ethene and propene calculated previously, and it was theorized that the decay of ozone here was limited by the rate of dissolution of 1-hexene in water instead of the reaction itself. Therefore, a second method, involving competition kinetics was employed where 1-hexene was made to react with ozone in competition with styrene (whose rate constant for aqueous ozonolysis has been calculated previously), and the yields of the products of each olefin were quantified using gas chromatography. These yields were then used to calculate the rate constant for the reaction between 1-hexene and ozone using equations derived through the course of this project. The rate v constant for 1-hexene calculated using this method was found to be of a similar order of magnitude to those for ethene and propene. Since the electron density around the double bond does not change significantly with small changes in alkene chain length, it was theorized that the rate constant of the reaction between ozone and other linear alpha olefins such as 1-pentene and 1-heptene would be very similar to that of 1-hexene. Finally, the formation of aldehydes due to ozonation of a 1 mg/L DOC aqueous solution of West Texas Intermediate crude oil was modeled.
YOSHLARNI TARBIYALASHDA RAQAMLI  IQTISODIYOTNI O'RNI
Creators: name: Sultonova Ozoda Rajabovna, Samarqand davlat veterinariya medisinasi, charvochilik va biyotexnologiyalar  universiteti
name: Narziyeva Nargiza Norkuziyevna, Samarqand davlat veterinariya medisinasi, charvochilik va biyotexnologiyalar  universiteti
name: Suvanova Dilnura Kurbanovna, Samarqand davlat veterinariya medisinasi, charvochilik va biyotexnologiyalar  universiteti
Publisher: name: Zenodo
Year: 2024

description: Hozirgi  jadal  globallashuv  jarayonida  dunyo  mamlakatlariiqtisodiyoti  va  raqobatdoshligini   belgilashda  raqamli  iqtisodiyotning  o‘rnimuhim  ahamiyat  kasb  etadi.  Iqtisodiyotning  qaysi  bir  tarmoq  yoki  sohasiganazar  tashlamaylik,   barchasida  raqamli  texnologiyalarning  o‘rnini  ko‘ramiz. Prezidentimiz  Shavkat  Mirziyoev  joriy  yildagi  parlamentga  Murojaatnomasidataraqqiyotga  erishish  uchun  raqamli  bilimlar  hamda  zamonaviy  axborottexnologiyalarini  egallashimiz  zarur  va  shartligi,  bu  bizga  yuksalishning  engqisqa  yo‘lidan  borish  imkoniyatini  berishi,  zero,  bugun  dunyoda  barcha  sohalargaaxborot  texnologiyalari  chuqur  kirib  borayotganligiga  alohida  e’tibor  qaratdi. Avvalo  raqamli  iqtisodiyot  nega  kerak insoniyat taraqqiyoti uchun muximmi degansavolga qisqa javob bersak.
Central Charge Reduction and Spacetime Statistics in the Fractional Superstring
Creators: name: Argyres, Philip C.
name: Dienes, Keith R.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Fractional superstrings in the tensor-product formulation experience ``internal projections'' which reduce their effective central charges. Simple expressions for the characters of the resulting effective worldsheet theory are found. All states in the effective theory can be consistently assigned definite spacetime statistics. The projection to the effective theory is shown to be described by the action of a dimension-three current in the original tensor-product theory.
description: 11 pages (LaTeX), CLNS 92/1168, McGill/92-41 (minor typos corrected)
Exponential Integrators in Time-Dependent Density Functional Calculations
Creators: name: Kidd, Daniel
name: Covington, Cody
name: Varga, Kalman
Publisher: name: arXiv
Year: 2017
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The integrating factor and exponential time differencing methods are implemented and tested for solving the time-dependent Kohn--Sham equations. Popular time propagation methods used in physics, as well as other robust numerical approaches, are compared to these exponential integrator methods in order to judge the relative merit of the computational schemes. We determine an improvement in accuracy of multiple orders of magnitude when describing dynamics driven primarily by a nonlinear potential. For cases of dynamics driven by a time-dependent external potential, the accuracy of the exponential integrator methods are less enhanced but still match or outperform the best of the conventional methods tested.
Leishmanicidal activity of green tea leaves and pomegranate peel extracts on L. infantum
Creators: name: Imperatori, Francesca
name: Barlozzari, Giulia
name: Scardigli, Arianna
name: Romani, Annalisa
name: Gladia Macrì
name: Polinori, Norma
name: Bernini, Roberta
name: Santi, Luca
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: 60506 Virology

description: Leishmania infantum is responsible for the cutaneous and visceral form of this zoonotic disease, which is potentially lethal for humans and has dogs as natural reservoir. In the light of the antiparasitic properties displayed by several natural products, L. infantum promastigotes were exposed to green tea (Camellia sinensis) leaves extract (GTE) and pomegranate (Punica granatum) peel extract (PPE). Both extracts, characterized by NMR and HPLC analysis, inhibited parasite proliferation in a dose-dependent manner, as proved by IC50 evaluation determined by MTT assay.Moreover, the reversibility assay showed that GTE and PPE have an aptotosis-mediated leishmanicidal effect, as evidenced by DNA degradation and confirmed by DNA fragmentation and real-time PCR analyses. Finally, for the first time morphological and ultrastructural alterations induced by a P. granatum extract on Leishmania were shown by the use of light, transmission and scanning electron microscopy.