cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Genetic Blue-print of certain Avian species
Creators: name: HK Garg
name: Garg, Jaya
Publisher: name: figshare
Year: 2018
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences

description: Chromosomes are the quintessence of biological dynamism. As carrier of genes, they are the controllers of varied biological activities – the basis of life. Their precise movement during cell-division and their amazing power of replication are a few instances of extreme vitality.In some ways, however, we can get an even more vivid picture of liveliness of chromosomes if we examine them beyond the designated phases of mitosis and meiosis or at times, when they do not go after the preset norms. One of such inconsistencies is change in structural arrangement of chromosomes which either brings about speciation or, by conferring heterozygote vigor, sustains polymorphism in populations.In order to work out the chromosomal make-up of certain species of birds and to ascertain the presence of true variability, if any, in natural breeding populations, five species of birds viz. Turnix suscicator, Ceryl rudis, Merops orientalis, Sturnus contra and Treron phoenicoptera were selected for the current investigation. The harvesting of chromosomes was done, in vivo, from the bone-marrow cells as per Garg [1, 2, 3]; Garg & Garg [4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14] and Garg et. al. [15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26]. The size distinction between the macro - and micro - chromosomes was sharp in all species, except Ceryl rudis and Merops orientalis wherein, owing to continuing drop in the size of autosomes, it became difficult to draw a line of demarcation. Finally, we relied on the criterion of De Boer (1976) to separate out the macrochromosomes from microchromosomes.In all species, sex determination was found to be ZZ-ZW type - the female being heterogametic. Nonetheless, in T. suscicator, it was unfeasible to individualize Z & W, from a cluster of large autosomes, as both of them (sex chromosomes as well as autosomes) had similar morphology.Four out of five species, worked out during the present investigation, had 82 number of chromosomes (n = 41) and all of them were monomorphic. Conversely, T. phoenicoptera alone had nine diverse karyological combinations (table-9) because of two separate pericentric inversions - one in chromosome - 1 and another in chromosome - 2.Presence of such an extensive polymorphism in T. phoenicoptera should aptly be described as an incidence of multiple chromosomal heteromorphism.
Science with hot astrophysical plasmas
Creators: name: Kaastra, J. S.
name: Gu, L.
name: Mao, J.
name: Mehdipour, M.
name: Mernier, F.
name: de Plaa, J.
name: Raassen, A. J. J.
name: Urdampilleta, I.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present some recent highlights and prospects for the study of hot astrophysical plasmas. Hot plasmas can be studied primarily through their X-ray emission and absorption. Most astrophysical objects, from solar system objects to the largest scale structures of the Universe, contain hot gas. In general we can distinguish collisionally ionised gas and photoionised gas. We introduce several examples of both classes and show where the frontiers of this research in astrophysics can be found. We put this also in the context of the current and future generation of X-ray spectroscopy satellites. The data coming from these missions challenge the models that we have for the calculation of the X-ray spectra.
description: 12 pages, 6 figures, 2nd European Conference on Plasma Diagnostics, 18-21 April 2017, Bordeaux; to appear in JINST
ASTAROTH-Cryogenic_Chamber_Design&Test_Report
Creators: name: Simone, Coelli
name: Monti Mauro
name: Zani Andrea
name: D'Angelo Davide
name: Todero Maurizio
name: Palmisano Arsenio
Publisher: name: INFN Open Access Repository
Year: 2025

description: In order to validate the design of the cryogenic chamber of the ASTAROTH experiment, finite element analysis and mechanical material characterisation tests were carried out under cryogenic conditions.

This document summarises the results of the analyses and tests conducted jointly by the INFN Milano Design and Mechanical Workshop Service and at the INFN LASA Laboratory.
State Transitions in Ultracompact Neutron Star LMXBs: towards the Low Luminosity Limit
Creators: name: Lin, Jie
name: Yu, Wenfei
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Luminosity of X-ray spectral state transitions in black hole and neutron star X-ray binaries can put constraint on the critical mass accretion rate between accretion regimes. Previous studies indicate that the hard-to-soft spectral state transitions in some ultracompact neutron star LMXBs have the lowest luminosity. With X-ray monitoring observations in the past decade, we were able to identify state transitions towards the lowest luminosity limit in 4U 0614+091, 2S 0918-549 and 4U 1246-588. By analysing corresponding X-ray pointed observations with the Swift/XRT and the RXTE/PCA, we found no hysteresis of state transitions in these sources, and determined the critical mass accretion rate in the range of 0.002 - 0.04 $\dot{\rm M}_{\rm Edd}$ and 0.003 - 0.05 $\dot{\rm M}_{\rm Edd}$ for the hard-to-soft and the soft-to-hard transition, respectively, by assuming a neutron star mass of 1.4 solar masses. This range is comparable to the lowest transition luminosity measured in black hole X-ray binaries, indicating the critical mass accretion rate is not affected by the nature of the surface of the compact stars. Our result does not support the Advection-Dominated Accretion Flow (ADAF) model which predicts that the critical mass accretion rate in neutron star systems is an order of magnitude lower if same viscosity parameters are taken. The low transition luminosity and insignificant hysteresis in these ultracompact X-ray binaries provide further evidence that the transition luminosity is likely related to the mass in the disc.
description: 12 pages, 4 figures, to appear in MNRAS
Nuclear Organization of Motacilla flava
Creators: name: HK Garg
Publisher: name: figshare
Year: 2018
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences

description: Birds are characterized by fluff, flight, a petite genome and a distinctive karyotype. Despite large numbers of chromosomes, the diploid count (2n=80) is amazingly constant with 2n = 74-86 in 63%, 2n = 66-74 in 24% and 2n = 40 & 2n = 142 in the remaining 13% of birds.The Yellow Wagtail, Motacilla flava, is a small passerine bird of the wagtail family Motacillidae, which includes pipits and longclaws. This insectivorous bird inhabits open country near water such as wet meadows. It nests in tussocks, laying 4-8 speckled eggs. It is a slender 15–16 cm long bird with characteristic long, constantly wagging tail. The breeding adult male is basically olive above and yellow below. The heads of breeding males come in a variety of colours and patterns depending on subspecies.Two males and one female specimens of the yellow wagtail were traced in nature. Blood cells were drawn from the vena basilica at the point where it crosses radius and ulna. Sometimes in long-legged species, it was obtained from the vena sphanea approximately midway the tarso-metatarsus. Approximately 0.1 ml of a sterile solution of Na-heparin (5000 I.U./ml) was drained into a disposable syringe and 0.5 to 2.0 ml of blood sample was drawn. Small syringes (up to 2 ml) were preferred since the vacuum produced by larger syringes causes the vena basilica to collapse during suck up. The syringe was shaken to blend the blood cells and heparin thoroughly. The cell plates were prepared after Garg [2-6]; Garg & Garg [1] [7-16]; Garg, Garg & Jain [17] [18], Garg & Shrivastava [19-27] and Garg, Bharadwaj & Garg [28].Of some thirteen-plus metaphase plates examined, nine cells had 40 pairs of chromosomes (2n=80), although in rest of the cells, the diploid chromosome count varied from 78 to 85. There was no morphological ambiguity between macro- and micro- chromosomes. Macrochromosomes were divisible into two groups :Group I was represented by three large metacentric chromosomes. It was the largest element of the karyotype (LR = 9.54% and IC = 44. 82). Group II comprised five pairs of large ( ≥ 7.5% of TML) to medium (≥ 2.5% of TML) sized sub-median chromosomes (chromosome 4-8). Z-W were fourth in order of size, both sub-metacentric. The last three pairs were difficult to be individualized owing to a regular fall in size, comparable morphology and overlapping array of centromeric indices.Apart from these eight pairs, there were sixty four small dot-shaped telocentric elements (n=32), scattered hither and thither in the cell plates, amounted to 24.11% of the total genome.
Card guessing and the birthday problem for sampling without replacement
Creators: name: He, Jimmy
name: Ottolini, Andrea
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 60C05

description: Consider a uniformly random deck consisting of cards labelled by numbers from $1$ through $n$, possibly with repeats. A guesser guesses the top card, after which it is revealed and removed and the game continues. What is the expected number of correct guesses under the best and worst strategies? We establish sharp asymptotics for both strategies. For the worst case, this answers a recent question of Diaconis, Graham, He and Spiro, who found the correct order. As part of the proof, we study the birthday problem for sampling without replacement using Stein's method.
description: 28 pages, 5 figures, 1 table. Comments are welcome!
Bi-stability of magnetic skyrmions in ultrathin multilayer nanodots induced by magnetostatic interaction
Creators: name: Zelent, M.
name: Tóbik, J.
name: Krawczyk, M.
name: Guslienko, K. Y.
name: Mruczkiewicz, M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report the results of simulations of magnetic skyrmion stability in ultrathin magnetic multilayer nanodots with interfacial Dzyaloshinskii-Moriya exchange interaction (DMI). We found that in presence of the lateral confinement the magnetostatic energy significantly influences the skyrmion stability and leads to stabilization of large radius skyrmion even at low values of the DMI strength, in addition to small radius skyrmion stabilized by DMI. In particular, stabilization of the skyrmion state with two different radii (bi-stability) is found in dipolarly-coupled (Pt/Co/Ir)$_{n}$ circular nanodots with the number of repeats of the unit cell $n$ = 3 and 5. The bi-stability range is located at the DMI strength of 0.9-1.1 mJ/m$^2$ or at the total Co-layer thickness of 2.2-2.6 nm.
Numerous Old Starburst Galaxies in the Local Universe
Creators: name: Mouri, H.
name: Taniguchi, Y.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Old starburst galaxies are deficient in O stars, and hence do not exhibit strong line emission in the optical regime. However, there remain many B stars, which are expected to heat dust grains and generate strong continuum emission in the far-infrared. The IRAS data for a statistically complete sample of nearby galaxies reveal for the first time that such objects are as numerous as 30-40% of the local galaxy population.
description: 9 pages, 2 figures, to appear in The Astrophysical Journal (Letters)
Dynamics of spin relaxation in nonequilibrium magnetic nanojunctions
Creators: name: Smorka, Rudolf
name: Thoss, Michael
name: Žonda, Martin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate nonequilibrium phenomena in magnetic nano-junctions using a numerical approach that combines classical spin dynamics with the hierarchical equations of motion technique for quantum dynamics of conduction electrons. Our focus lies on the spin dynamics, where we observe non-monotonic behavior in the spin relaxation rates as a function of the coupling strength between the localized spin and conduction electrons. Notably, we identify a distinct maximum at intermediate coupling strength, which we attribute to a competition that involves the increasing influence of the coupling between the classical spin and electrons, as well as the influence of decreasing local density of states at the Fermi level. Furthermore, we demonstrate that the spin dynamics of a large open system can be accurately simulated by a short chain coupled to semi-infinite metallic leads. In the case of a magnetic junction subjected to an external DC voltage, we observe resonant features in the spin relaxation, reflecting the electronic spectrum of the system. The precession of classical spin gives rise to additional side energies in the electronic spectrum, which in turn leads to a broadened range of enhanced damping in the voltage.
description: 27 pages, 11 figures
Geometric enumeration problems for lattices and embedded $\mathbb{Z}$-modules
Creators: name: Baake, Michael
name: Zeiner, Peter
Publisher: name: arXiv
Year: 2017
Subjects: subject: Metric Geometry (math.MG)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 52C07, 05A15, 11H06, 52C23

description: In this review, we count and classify certain sublattices of a given lattice, as motivated by crystallography. We use methods from algebra and algebraic number theory to find and enumerate the sublattices according to their index. In addition, we use tools from analytic number theory to determine the asymptotic behaviour of the corresponding counting functions. Our main focus lies on similar sublattices and coincidence site lattices, the latter playing an important role in crystallography. As many results are algebraic in nature, we also generalise them to $\mathbb{Z}$-modules embedded in $\mathbb{R}^d$.
description: 92 pages, 2 figures; review article
Effects of aerogel-like disorder on the critical behavior of O(m)-vector models. Recent simulations and experimental evidences
Creators: name: Vasquez, Carlos
name: Paredes, Ricardo
Publisher: name: arXiv
Year: 2006
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We review some results on the effect of a specific type of quenched disorder on well known O(m)-vector models in three dimension. Evidences of changes of criticality in both systems, when confined in aerogel pores, are briefly referenced. The 3DXY model (m=2) represents the universality class to which the λ-transition of bulk superfluid $^4$He belongs. Experiments report changes of critical exponents for this transition, when superfluid $^4$He is confined in aerogels. Numerical results of the 3DXY model, confined in aerogel-like structures, are in agreement with experiments. Both results seem to contradict Harris criterion: being the specific heat exponent negative for the pure system, changes must be explained in terms of the extended criterion due to Weinrib and Halperin, which requires disorder to be long-range correlated (LRC) at all scales. Aerogels are fractal through some decades only, and present crossovers to homogeneous regimes at finite scales, so the violation to Harris criterion persists. The apparent violation has been explained in terms of hidden LRC subsets within aerogels $[$Phys. Rev. Lett., 2003, {\bf 90}, 170602$]$. On the other hand, experiments on the liquid-vapor (LV) transition of $^4$He and N$_2$ confined in aerogels, also showed changes in critical-point exponents. Being the LV critical-point in the O(1) universality class, criticality may be affected by both, short-range correlated (SRC) and LRC subsets ofdisorder. Simulations of the 3DIS in DLCA aerogels can corroborate experimental results. Experiments and simulations both suggest a shift in critical exponents to values closer to the SRC instead of those of the LRC fixed point.
description: 14 pages, 7 figures. Contribution to the "Mochima theoretical physics spring school". Joint CEA-IVIC-SFP workshop on Foundations of Statistical and Mesoscopic Physics. Venezuela. 2005
Sewing and Propagation of Conformal Blocks
Creators: name: Gui, Bin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Algebra (math.QA)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We clarify the relations between sewing and propagating conformal blocks. In particular, we show that sewing and propagation and commuting procedures. As an application, we give a geometric construction of permutation-twisted modules for tensor product VOAs. Their first (algebraic) construction is due to Barron-Dong-Mason.
 The results and the point of view in this article are crucial for relating the (genus-0) permutation-twisted conformal blocks associated to a tensor product VOA $V^{\otimes k}$ and the untwisted conformal blocks (of possibly higher genera) associated to $V$, which will be discussed in an upcoming work.
description: 43 pages. Published in New York J. Math
Prehistoric Methods of Rain Water Harvesting
Creators: name: HK Garg
name: Garg, Jaya
Publisher: name: figshare
Year: 2018
Subjects: subject: 60204 Freshwater Ecology
subject: FOS: Biological sciences

description: Our ancient religious texts and epics give a good insight into the water storage and conservation systems that prevailed in prehistoric days. Over the years, rising populations, growing Industrialization, and expanding agriculture have pushed up the demand for water. Efforts have been made to collect water by building dams and reservoirs and digging wells. Some countries have also tried to recycle and desalinate (remove salts) water. Water conservation has become the need of the day. The idea of ground water recharging by harvesting rainwater is gaining importance in many cities.In the forests, water seeps gently into the ground as vegetation breaks the fall. This groundwater in turn feeds wells, lakes, and rivers. Protecting forests means protecting water 'catchments'. In ancient India, people believed that forests were the 'mothers' of rivers and worshipped the sources of these water bodies.The Indus Valley Civilization, that flourished along the banks of the river Indus and other parts of western and northern India about 5,000 years ago, had one of the most sophisticated urban water supply and sewage systems in the world. The fact that the people were well acquainted with hygiene could be seen from the covered drains running beneath the streets of the ruins at both Mohenjo-Daro and Harappa. Another great example is the well-planned city of Dholavira, on Khadir Bet, a low plateau in the Rann in Gujarat. One of the oldest water harvesting systems is found about 130 km from Pune along Naneghat in the Western Ghats. A large number of tanks were cut in the rocks to provide drinking water to tradesmen who used to travel along this ancient trade route. Each fort in the area had its own water harvesting and storage system in the form of rock-cut cisterns, ponds, tanks and wells that are still in use today. A large number of forts like Raigad had tanks that supplied water.In ancient times, houses in parts of western Rajasthan were built so that each had a rooftop water harvesting system. Rainwater from these rooftops was directed into underground tanks. This system can be seen even today in all the forts, palaces and houses of the region. Underground baked earthen pipes and tunnels to maintain the flow of water and to transport it to distant places, are still functional at Burhanpur in Madhya Pradesh, Golkunda and Bijapur in Karnataka, and Aurangabad in Maharashtra.
Zero-field superconducting diode effect in small-twist-angle trilayer graphene
Creators: name: Lin, Jiang-Xiazi
name: Siriviboon, Phum
name: Scammell, Harley D.
name: Liu, Song
name: Rhodes, Daniel
name: Watanabe, K.
name: Taniguchi, T.
name: Hone, James
name: Scheurer, Mathias S.
name: Li, J. I. A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The critical current of a superconductor can be different for opposite directions of current flow when both time-reversal and inversion symmetry are broken. %When time-reversal and inversion symmetry are simultaneously broken, the critical current of a 2D superconductor is expected to depend on the directions of current flow. Such nonreciprocal behavior in superconducting transport, which creates a superconducting diode, has recently been demonstrated experimentally by breaking these symmetries with an applied magnetic field \cite{Ando2020diodes} or by construction of a magnetic tunnel junction \cite{Diez2021magnetic}. Here we report an intrinsic superconducting diode effect which is present at zero external magnetic field in mirror symmetric twisted trilayer graphene (tTLG). Such nonreciprocal behavior, with sign that can be reversed through training with an out-of-plane magnetic field, provides direct evidence of the microscopic coexistence between superconductivity and time-reversal symmetry breaking. In addition to the magnetic-field trainability, we show that the zero-field diode effect can be controlled by varying carrier density or twist angle. In accordance with these experimental controls, a natural interpretation for the origin of the intrinsic diode effect is an imbalance in valley occupation of the underlying Fermi surface, which likely leads to finite-momentum Cooper pairing and nematicity in the superconducting phase.
title: PP_1960-1961_Esquisse d'entraînement_Un patio 2
Creators: name: Panerai, Philippe
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2024
Subjects: subject: architecture
subject: beaux-arts
subject: Écoles des beaux-arts
subject: enseignement
subject: Atelier Arretche

description: Travaux scolaires de Philippe Panerai à l'École des beaux-arts.
Myxophytes : Neurotoxic Manifestations
Creators: name: HK Garg
name: Garg, Jaya
Publisher: name: figshare
Year: 2018
Subjects: subject: 60204 Freshwater Ecology
subject: FOS: Biological sciences

description: Blooms of blue-green algae are frequently associated with fatal episodes of aquatic fauna. Cyanobacteria produces two types of toxins : cytotoxins & biotoxins (neurotoxins and hepatotoxins). Neurotoxicity are, by and large, secreted by certain species of Anabaena, Aphanizomenon, Oscillatoria and Trichodesmium.Of these neurotoxins, saxitoxin (STX) and neosaxitoxin, also termed as 'aphantoxins' are produced by Aphanizomenon flos-aquae. Anatoxin-a (ANTX-a) is an alkaloid neurotoxin produced by Anabaena flos-aquae, A. spiroides and Oscillatoria. The LD50 in mice is about 200 µg/kg body weight as against 10 µg/kg dosages of aphantoxins. Mice injected intraperitoneally with lethal doses of ANTX-a die from respiratory arrest within some minutes showing symptoms like muscle fasciculation, heavy abdominal breath, cyanosis, convulsions and collapse.Another neurotoxin - Anatoxin-a(s) {ANTX-a(s)} has similar characteristics to an organophosphate insecticide, being a potent inhibitor of cholinesterase. On treatment with 20 µg/kg bw of dosage (LD50) animals show marked salivation, mucoid nasal emancipation, ataxia, diarrhea, dyspnea and cyanosis. Anatoxin-b (ANTX-b), a neurotoxin with acetocholinesterase activity; is more toxic than anatoxin-a and a(s). However, its exact nature and pharmacological action have yet to be worked out.
UQ Research Data Manager (UQRDM) - A Comprehensive Solution for Efficient Research Data Management
Creators: name: Kaiser, Mariana
Publisher: name: Zenodo
Year: 2023

description: Universities and research institutions globally face the challenge of managing vast amounts of data efficiently, ensuring secure storage, seamless collaboration, and streamlined workflows. Traditional data management approaches often involve fragmented systems, redundant data entry, and limited access methods, hindering researchers' productivity and collaboration potential. The University of Queensland addresses these issues with UQ Research Data Manager (UQRDM). Developed and designed in-house, UQRDM has matured into one of the world's largest integrated data management platforms that focuses on data security, integrity, accessibility, seamless collaboration, streamlined workflows and reducing administrative burdens.

The presentation will focus on showcasing the key features of UQRDM that address the challenges faced by researchers and research support staff. These features include multiple storage allocations, granular access control, dataset publishing, HDR thesis submission, and integration with other systems, eliminating redundant data entry.

A successful research data management system combines data integrity, accessibility, security, collaboration, streamlined workflows and robust user support. By encompassing these elements, researchers can effectively manage their data, contributing to the advancement of knowledge. UQ's approach focuses on user buy-in and breaking down barriers to adoption. Thorough testing and attention to detail drive excellence in UQRDM, while prompt and high-quality user support enhances the user experience. UQRDM represents a significant step forward in streamlining research data management, offering an efficient solution to meet the evolving needs of modern scientific collaboration.
Topological String, Matrix Integral, and Singularity Theory
Creators: name: Nakatsu, T.
name: Kato, A.
name: Noumi, M.
name: Takebe, T.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the relation between topological string theory and singularity theory using the partition function of $A_{N-1}$ topological string defined by matrix integral of Kontsevich type. Genus expansion of the free energy is considered, and the genus $g=0$ contribution is shown to be described by a special solution of $N$-reduced dispersionless KP system. We show a universal correspondences between the time variables of dispersionless KP hierarchy and the flat coordinates associated with versal deformations of simple singularities of type $A$. We also study the behavior of topological matter theory on the sphere in a topological gravity background, to clarify the role of the topological string in the singularity theory. Finally we make some comment on gravitational phase transition.
description: 12 pages, RIMS 934
Detectability of microlensed gravitational waves
Creators: name: Yeung, Simon M. C.
name: Cheung, Mark H. Y.
name: Gais, Joseph A. J.
name: Hannuksela, Otto A.
name: Li, Tjonnie G. F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Gravitational lensing describes the bending of the trajectories of light and gravitational waves due to the gravitational potential of a massive object. Strong lensing by galaxies can create multiple images with different overall amplifications, arrival times, and image types. If, furthermore, the gravitational wave encounters a star along its trajectory, microlensing will take place. Previously, it has been shown that the effects of microlenses on strongly-lensed type-I images could be negligible in practice, at least in the low magnification regime. In this work, we study the same effect on type-II strongly-lensed images by computing the microlensing amplification factor. As opposed to being magnified, type-II images are typically demagnified. Moreover, microlensing on top of type-II images induces larger mismatches with un-microlensed waveforms than type-I images. These results are broadly consistent with recent literature and serve to confirm the findings. In addition, we investigate the possibility of detecting and analysing microlensed signals through Bayesian parameter estimation with an isolated point mass lens template, which has been adopted in recent parameter estimation literature. In particular, we simulate gravitational waves microlensed by a microlens embedded in a galaxy potential near moderately magnified type-I and II macroimages, with variable lens masses, source parameters and macromagnifcations. Generally, an isolated point mass model could be used as an effective template to detect a type-II microlensed image but not for type-I images, demonstrating the necessity for more realistic microlensing search templates.
description: 11 pages, 15 figures. Matches published version on MNRAS
Anomalous Hall effect in two-dimensional non-collinear antiferromagnetic semiconductor Cr0.68Se
Creators: name: Yan, J.
name: Luo, X.
name: Chen, F. C.
name: Pei, Q. L.
name: Lin, G. T.
name: Han, Y. Y.
name: Hu, L.
name: Tong, P.
name: Song, W. H.
name: Zhu, X. B.
name: Sun, Y. P.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Cr0.68Se single crystals with two-dimensional (2D) character have been grown, and the detailed magnetization M(T), electrical transport properties (including longitudinal resistivity and Hall resistivity and thermal transport ones (including heat capacity Cp(T) and thermoelectric power (TEP) S(T)) have been measured. There are some interesting phenomena: (i) Cr0.68Se presents a non-collinear antiferromagnetic (AFM) semiconducting behavior with the Neel temperature TN = 42 K and the activated energy Eg=3.9 meV; (ii) It exhibits the anomalous Hall effect (AHE) below TN and large negative magnetoresistance (MR) about 83.7% (2 K, 8.5 T). The AHE coefficient RS is 0.385 cm-3/C at T=2 K and the AHE conductivity σH is about 1 ohm-1cm-1 at T=40 K, respectively; (iii) The scaling behavior between the anomalous Hall resistivity and the longitudinal resistivity is linear and further analysis implies that the origin of the AHE in Cr0.68Se is dominated by the skew-scattering mechanism. Our results may be helpful for exploring the potential application of these kind of 2D AFM semiconductors.
description: Accepted by Appl.Phys.Lett
Boundary-Induced Pattern Formation from Uniform Temporal Oscillation
Creators: name: Kohsokabe, Takahiro
name: Kaneko, Kunihiko
Publisher: name: arXiv
Year: 2017
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Pattern dynamics triggered by fixing a boundary is investigated. By considering a reaction-diffusion equation that has a unique spatially-uniform and limit cycle attractor under a periodic or Neumann boundary condition, and then by choosing a fixed boundary condition, we found three novel phases depending on the ratio of diffusion constants of activator to inhibitor: transformation of temporally periodic oscillation into a spatially-periodic fixed pattern, travelling wave emitted from the boundary, and aperiodic spatiotemporal dynamics. The transformation into a fixed, periodic pattern is analyzed by crossing of local nullclines at each spatial point, shifted by diffusion terms. A spatial map, then, is introduced, whose temporal sequence can reproduce the spatially periodic pattern, by replacing the time with space. The generality of the boundary-induced pattern formation as well as its relevance to biological morphogenesis is discussed.
Quasi-Isometries for certain Right-Angled Coxeter Groups
Creators: name: Edletzberger, Alexandra
Publisher: name: arXiv
Year: 2021
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: We construct the JSJ tree of cylinders $T_c$ for finitely presented, one-ended, two-dimensional right-angled Coxeter groups (RACGs) splitting over two-ended subgroups in terms of the defining graph of the group, generalizing the visual construction by Dani and Thomas given for hyperbolic RACGs. Additionally, we prove that $T_c$ has two-ended edge stabilizers if and only if the defining graph does not contain a certain subdivided $K_4$. By use of the structure invariant of $T_c$ introduced by Cashen and Martin, we obtain a quasi-isometry-invariant of these RACGs, essentially determined by the defining graph. Furthermore, we refine the structure invariant to make it a complete quasi-isometry-invariant in case the JSJ decomposition of the RACG does not have any rigid vertices.
description: 50 pages
Mass-Energy Equivalence in Bound Three-Nucleon Systems
Creators: name: Filikhin, I.
name: Suslov, V. M.
name: Vlahovic, B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The mass defect formula reflects the equivalence of mass and energy for bound nuclear systems. We study three-nucleon systems $^3$H and $^3$He, considering the neutron and proton as indistinguishable particles ($AAA$ model) or taking into account the real masses of neutrons and protons ($AAB$ model). We have focused on conceptual problems of the $AAA$ model, which is widely used for $3N$ calculations. In particular, the $AAA$ model is incompatible with the mass defect formula, which naturally corresponds to the $AAB$ model. In addition, the $AAA$ model has a cyclic permutation symmetry, which is breaking in the natural $AAB$ model. The latter problem cannot be eliminated within the perturbative $AAA$ approach, in which the mass difference effect is simulated by correcting the kinetic energy operator. Earlier it was reported that the accuracy of such $AAA$ calculations is 1~keV. An example of the $AAB$ calculation, we numerically estimate the effect of the difference between the neutron and proton masses on the energy calculated without any approximation with the accuracy of 0.1~keV. Another manifestation of the equivalence of mass $m$ and energy $E$ can be expressed by the formula $dE/dm=Const$. To show this dependence of the three-body energy on the nucleon mass, we performed realistic calculations within the $AAA$ approximation, varying the averaged nucleon mass. The mass-energy compensation effect for the three-body Hamiltonian is shown. According to this, we have determined the effective nucleon mass required to compensate for the perturbative effect of a three-body potential.
description: 14 pages, 5 figures
Adiabatic charge pumping through a dot at the junction of N quantum wires
Creators: name: Banerjee, Shamik
name: Mukherjee, Anamitra
name: Rao, Sumathi
name: Saha, Arijit
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study adiabatic charge pumping through a quantum dot placed at the junction of $N$ quantum wires. We explicitly map out the pattern of pumped charge as a function of the time-varying tunneling parameters coupling the wires to the dot and the phase between any two time varying parameters controlling the shape of the dot. We find that with $N-2$ time-independent well-coupled leads, the maximum pumped charge in the remaining two leads is strongly suppressed with increasing $N$, leading to the possibility of tuning of the pumped charge, by modulating the coupling of the $N-2$ leads.
description: 5 pages, 6 figures, version to be published in PRB
Nonlinear Renormalization Group Equation for Matrix Models
Creators: name: Higuchi, Saburo
name: Itoi, Chigak
name: Nishigaki, Shinsuke
name: Sakai, Norisuke
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: An exact renormalization group equation is derived for the free energy of matrix models. The renormalization group equation turns out to be nonlinear for matrix models, as opposed to linear for vector models. An algorithm for determining the critical coupling constant and the critical exponent is obtained. As concrete examples, one-matrix models with one and two coupling constants are analyzed and the exact values of the critical coupling constant and the associated critical exponent are found.
description: 12 pages, TIT/HEP-228, NUP-A-93-13 ( a few corrections in formulae, the conclusion not changed)
Shared purity and concurrence of a mixture of ground and low-lying excited states as indicators of quantum phase transitions
Creators: name: Biswas, George
name: Biswas, Anindya
name: Sen, Ujjwal
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the efficacy of shared purity, a measure of quantum correlation that is independent of the separability-entanglement paradigm, as a quantum phase transition indicator in comparison with concurrence, a bipartite entanglement measure. The order parameters are investigated for thermal states, pseudo-thermal states and more, of the systems considered. In the case of the one-dimensional $J_1-J_2$ Heisenberg quantum spin model and the one-dimensional transverse-field quantum Ising model, shared purity turns out to be as effective as concurrence in indicating quantum phase transitions. In the two-dimensional $J_1-J_2$ Heisenberg quantum spin model, shared purity indicates the two quantum phase transitions present in the model, while concurrence detects only one of them. Moreover, we find diverging finite-size scaling exponents for the order parameters near the transitions in odd- and even-sized systems governed by the one-dimensional \(J_1-J_2\) model, as had previously been reported for quantum spins on odd- and even-legged ladders. It is plausible that the divergence is related to a M{ö}bius strip-like boundary condition required for odd-sized systems, while for even-sized systems, the usual periodic boundary condition is sufficient.
description: v2: new considerations added, previous results unchanged, 9 pages, 12 figures
Carnet nº 19, commencé à Canton (p. 12)
Creators: name: Péraire, Lucien
name: CNRS
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2023

description: created: 21-1-1931
Electron-Phonon Interaction in Ternary Rare-Earth Copper Antimonides LaCuSb2 and La(Cu0.8Ag0.2)Sb2 probed by Yanson Point-Contact Spectroscopy
Creators: name: Gamayunova, N. V.
name: Bashlakov, D. L.
name: Kvitnitskaya, O. E.
name: Terekhov, A. V.
name: Naidyuk, Yu. G.
name: Bukowski, Z.
name: Babij, M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Investigation of the electron-phonon interaction (EPI) in LaCuSb2 and La(Cu0.8Ag0.2)Sb2 compounds by Yanson point-contact spectroscopy (PCS) has been carried out. Point-contact spectra display a pronounced broad maximum in the range of 10÷20 mV caused by EPI. Variation of the position of this maximum is likely connected with anisotropic phonon spectrum in these layered compounds. The absence of phonon features after the main maximum allows the assessment of the Debye energy of about 40 meV. The EPI constant for the LaCuSb2 compound was estimated to be λ=0.2+/-0.03. A zero-bias minimum in differential resistance for the latter compound is observed for some point contacts, which vanishes at about 6 K, pointing to the formation of superconducting phase under point contact, while superconducting critical temperature of the bulk sample is only 1K.
description: 4 two-column pages, 5 figures, published in the "Proceedings of the 2017 IEEE 7-th International Conference on Nanomaterials: Applications & Properties", September 10-15, 2017, Zatoka, Ukraine
Quark deconfinement in compact stars through sexaquark condensation
Creators: name: Blaschke, D.
name: Ivanytskyi, O.
name: Shahrbaf, M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this contribution, we present for the first time a scenario according to which early quark deconfinement in compact stars is triggered by the Bose-Einstein condensation (BEC) of a light sexaquark (S) with a mass $m_S<2054$ MeV, that has been suggested as a candidate particle to explain the baryonic dark matter in the Universe. The onset of S BEC marks the maximum mass of hadronic neutron stars and it occurs when the condition for the baryon chemical potential $μ_b=m_S/2$ is fulfilled in the center of the star, corresponding to $M_{\rm onset}\lesssim 0.7~M_\odot$. In the gravitational field of the star the density of the BEC of the S increases until a new state of the matter is attained, where each of the S-states got dissociated into a triplet of color-flavor-locked (CFL) diquark states. These diquarks are the Cooper pairs in the color superconducting CFL phase of quark matter, so that the developed scenario corresponds to a BEC-BCS transition in strongly interacting matter. For the description of the CFL phase, we develop here for the first time the three-flavor extension of the density-functional formulation of a chirally symmetric Lagrangian model of quark matter where confining properties are encoded in a divergence of the scalar self-energy at low densities and temperatures.
description: 27 pages, 8 figures, Contribution to the Book "New Phenomena and New States of Matter in the Universe. From Quarks to Cosmos" edited by C. A. Z. Vasconcellos, P. O. Hess and T. Boller
I percorsi della spiritualità sui fogli di un libro: il Salterio di san Romualdo a Camaldoli
Creators: name: Tristano, Caterina
Publisher: name: Zenodo
Year: 2019
Subjects: St. Romualdus' Psalter
Palaeography
Glossed Books
IXth Century
Scriptorium of St. Amand

description: The manuscript of Camaldoli [s.n.], considered a relic of St. Romualdus, contains the Psalms with glosses, written in both uncialis scriptura (the biblical text) and early caroline minuscule (the commentary). This manuscript has been dated to the second half /end of the IXth century and attributed to multiple graphic areas, as North Italy, Switzerland, Germany, French Kingdom. Based on evaluation of the textual tradition and the palaeographical evidence, we can suppose that it was a first attempt to produce a book containing both the biblical text and its commentary. The Camaldoli book is datable on the early 30 years of the IXth century, it’s probably written in the north-east of French Kingdom, perhaps in the scriptorium of the St. Amand monastery, a center of high studies in liturgical exegesis, close to both Schola Palatina and the German episcopal schools engaged in biblical exegesis, as Magonza or Fulda.
Make-over in Phytoplankton Community during Lake Enrichment
Creators: name: HK Garg
name: Garg, Jaya
Publisher: name: figshare
Year: 2018
Subjects: subject: 60204 Freshwater Ecology
subject: FOS: Biological sciences

description: The present memoir deals with the upshot of nutrient enrichment on inland waters. Small level functional ecosystems were developed in laboratory by inoculating quantum sufficit of water, soil and planktonic flora. Of some hundred nutrients known to cause eutrophication, five (Ca, Mg, K, N, P) were selected for present study.Different dosages of these nutrients were administered separately and their impact on free floating plant life was assessed, in terms of species diversity, density and relative growth, over a period of one month. Results were suggestive of the fact that algal strains flourished well upto a definite concentration of nutrients (Ca=101.6; Mg=31.0; K=95.0; TKN=49.4; TP= 10.0), beyond which the microcosmal water could not sustain planktonic life except for certain eutrophic taxa viz. Anabaena ornaldii, Microcystis aeruginosa and Oscillatoria amphigranulata.Exposure to nutrients not only checked the development of Chlorophyceae during colonization but also initiated major shifts in the sociology of phytoplankton after a short time. Supply of nutrients upto 5 mg/l concentration did not affect the vegetation significantly, however, further enrichment largely supressed the inland water dominants i.e, Chlorophytes. Conditions, similar to controlled ones, prevailed in treated microcosms too, but for those treated with 10 mg/l and 15 mg/l of nutrients where blue-green forms dominated at the cost of prevailing green algae. In all cases, Crucigenia crucifera, C. rectangularis, Scenedesmus abundans (UL & LL), S. bijugatus, S. dimorphus (UL, LL & SL), Characiopsis longipes, Crucigenia quadricauda and Scenedesmus armatus (SL) registered their presence for most of the period whereas, certain strains viz. Ankistrodesmus falcatus, Scenedesmus obliques, S. parisiensis, S. quadricauda, Amphora ovalis (UL), Eudorina elegans, Oocystis crassa, Staurastrum gracile, S. orbicularae, Tetraedron minimum, Cosmarium granatum (LL), Coelastrum microporum, Pediastrum tetras and Selanastrum gracile (SL) could not withstand the nutritional changes and perished earlier.
Ballistic magnetoresistance in small-size carbon nanotubes devices
Creators: name: Krompiewski, S.
name: Cuniberti, Gianaurelio
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We theoretically study the magnetoresistance of single wall carbon nanotubes (SWCNTs) in the ballistic transport regime, using a standard tight-binding approach. The main attention is directed to spin-polarized electrical transport in the presence of either axial or perpendicular magnetic field. The method takes into account both Zeeman splitting as well as size and chirality effects. These factors (along with a broadening of energy levels due to a strong nanotube/electrode coupling) lead, in ultra small SWCNTs, to serious modifications in profile of the Aharonov-Bohm oscillations. Other noteworthy findings are that in the parallel configuration (axial magnetic field) the ballistic magnetoconductance is negative (positive) for armchair (semiconducting zigzag) nanotubes, whereas in the perpendicular configuration the magnetoresistance is nearly zero both for armchair and zigzag SWCNTs.
description: 2 two-column pages, 3 figures
title: ADCO, Cart. 186 (11 H 71), f. 0005v
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: CBMA/CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Cartulaire général de Cîteaux, dit de Jean de Cirey, t. II (XVe siècle), tome II, Archives départementales de la Côte-d'Or, C
art. 186 (11 H 71). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire général de Cîteaux, dit de Jean de Cirey, t. II (XVe siècle), tome II, Archives départementales de la
 Côte-d'Or, Cart. 186 (11 H 71), f. 0005v, 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