cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Exploring pre-main sequence variables of ONC: The new variables
Creators: name: Parihar, Padmakar
name: Messina, Sergio
name: Distefano, Elisa
name: S., Shantikumar N.
name: Medhi, Biman J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Since 2004, we have been engaged in a long-term observing program to monitor young stellar objects in the Orion Nebula Cluster. We have collected about two thousands frames in V, R, and I broad-band filters on more than two hundred nights distributed over five consecutive observing seasons. The high-quality and time-extended photometric data give us an opportunity to address various phenomena associated with young stars. The prime motivations of this project are i) to explore various manifestations of stellar magnetic activity in very young low-mass stars; ii) to search for new pre-main sequence eclipsing binaries; and iii) to look for any EXor and FUor like transient activities associated with YSOs. Since this is the first paper on this program, we give a detailed description of the science drivers, the observation and the data reduction strategies as well. In addition to these, we also present a large number of new periodic variables detected from our first five years of time-series photometric data. Our study reveals that about 72% of CTTS in our FoV are periodic, whereas, the percentage of periodic WTTS is just 32%. This indicates that inhomogeneities patterns on the surface of CTTS of the ONC stars are much more stable than on WTTS. From our multi-year monitoring campaign we found that the photometric surveys based on single-season are incapable of identifying all periodic variables. And any study on evolution of angular momentum based on single-season surveys must be carried out with caution.
description: Accepted for publication by MNRAS, 26 pages, 17 figures, 6 tables
A Further Drop into Quiescence by the Eclipsing Neutron Star 4U 2129+47
Creators: name: Lin, Jinrong
name: Nowak, Michael A.
name: Chakrabarty, Deepto
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The low mass X-ray binary 4U 2129+47 was discovered during a previous X-ray outburst phase and was classified as an accretion disk corona source. A 1% delay between two mid-eclipse epochs measured ~22 days apart was reported from two XMM-Newton observations taken in 2005, providing support to the previous suggestion that 4U 2129+47 might be in a hierarchical triple system. In this work we present timing and spectral analysis of three recent XMM-Newton observations of 4U 2129+47, carried out between November 2007 and January 2008. We found that absent the two 2005 XMM-Newton observations, all other observations are consistent with a linear ephemeris with a constant period of 18857.63s; however, we confirm the time delay reported for the two 2005 XMM-Newton observations. Compared to a Chandra observation taken in 2000, these new observations also confirm the disappearance of the sinusoidal modulation of the lightcurve as reported from two 2005 XMM-Newton observations. We further show that, compared to the Chandra observation, all of the XMM-Newton observations have 40% lower 0.5--2 keV absorbed fluxes, and the most recent XMM-Newton observations have a combined 2--6 keV flux that is nearly 80% lower. Taken as a whole, the timing results support the hypothesis that the system is in a hierarchical triple system (with a third body period of at least 175 days). The spectral results raise the question of whether the drop in soft X-ray flux is solely attributable to the loss of the hard X-ray tail (which might be related to the loss of sinusoidal orbital modulation), or is indicative of further cooling of the quiescent neutron star after cessation of residual, low-level accretion.
description: Accepted by ApJ, 10 pages, emulateapj style
Principal Component Analysis of SDSS Stellar Spectra
Creators: name: McGurk, Rosalie C.
name: Kimball, Amy E.
name: Ivezic, Zeljko
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We apply Principal Component Analysis (PCA) to ~100,000 stellar spectra obtained by the Sloan Digital Sky Survey (SDSS). In order to avoid strong non-linear variation of spectra with effective temperature, the sample is binned into 0.02 mag wide intervals of the g-r color (-0.20
description: 25 pages, 15 figures, accepted by the Astronomical Journal
Total curvatures of model surfaces control topology of complete open manifolds with radial curvature bounded below. II
Creators: name: Kondo, Kei
name: Tanaka, Minoru
Publisher: name: arXiv
Year: 2009
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C20, 53C21

description: We prove, as our main theorem, the finiteness of topological type of a complete open Riemannian manifold $M$ with a base point $p \in M$ whose radial curvature at $p$ is bounded from below by that of a non-compact model surface of revolution $\tilde{M}$ which admits a finite total curvature and has no pair of cut points in a sector. Here a sector is, by definition, a domain cut off by two meridians emanating from the base point $\tilde{p} \in \tilde{M}$. Notice that our model $\tilde{M}$ does not always satisfy the diameter growth condition introduced by Abresch and Gromoll. In order to prove the main theorem, we need a new type of the Toponogov comparison theorem. As an application of the main theorem, we present a partial answer to Milnor's open conjecture on the fundamental group of complete open manifolds.
description: 37 pages, No figures, Submitted to Transactions of Amer. Math. Soc. (December 17, 2007), The [v1] is the 2nd revised version (October 17, 2008) according to the 2nd referee's report
Stellar-mass black holes in star clusters: implications for gravitational wave radiation
Creators: name: Banerjee, Sambaran
name: Baumgardt, Holger
name: Kroupa, Pavel
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We study the dynamics of stellar-mass black holes (BH) in star clusters with particular attention to the formation of BH-BH binaries, which are interesting as sources of gravitational waves (GW). We examine the properties of these BH-BH binaries through direct N-body simulations of star clusters using the GPU-enabled NBODY6 code. We perform simulations of N <= 10^5 Plummer clusters of low-mass stars with an initial population of BHs. Additionally, we do several calculations of star clusters confined within a reflective boundary mimicking only the core of a massive cluster. We find that stellar-mass BHs with masses ~ 10 solar mass segregate rapidly into the cluster core and form a sub-cluster of BHs within typically 0.2 - 0.5 pc radius, which is dense enough to form BH-BH binaries through 3-body encounters. While most BH binaries are ejected from the cluster by recoils received during super-elastic encounters with the single BHs, few of them harden sufficiently so that they can merge via GW emission within the cluster. We find that for clusters with $N \ga 5\times 10^4$, typically 1 - 2 BH-BH mergers occur within them during the first ~ 4 Gyr of evolution. Also for each of these clusters, there are a few escaping BH binaries that can merge within a Hubble time, most of the merger times being within a few Gyr. These results indicate that intermediate-age massive clusters constitute the most important class of candidates for producing dynamical BH-BH mergers. Old globular clusters cannot contribute significantly to the present-day BH-BH merger rate since most of the mergers from them would have occurred earlier. In contrast, young massive clusters are too young to produce significant number of BH-BH mergers. Our results imply significant BH-BH merger detection rates for the proposed "Advanced LIGO" GW detector. (Abridged)
description: Accepted for publication in MNRAS. 11 pages, 6 figures, 2 color figures
Strong magnetic proximity effect in Van der Waals heterostructures driven by direct hybridization
Creators: name: Cardoso, C.
name: Costa, A. T.
name: MacDonald, A. H.
name: Fernández-Rossier, J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose a new class of magnetic proximity effects based on the spin dependent hybridization between the electronic states at the Fermi energy in a non-magnetic conductor and the narrow spin split bands of a ferromagnetic insulator. Unlike conventional exchange proximity, we show this hybridization proximity effect has a very strong influence on the non-magnetic layer and can be further modulated by application of an electric field. We use DFT calculations to illustrate this effect in graphene placed next to a monolayer of CrI$_3$, a ferromagnetic insulator. We find strong hybridization of the graphene bands with the narrow conduction band of CrI$_3$ in one spin channel only. We show that our results are robust with respect to lattice mismatch and twist angle variations. Furthermore, we show that an out-of-plane electric field can be used to modulate the hybridization strength, paving the way for applications.
description: 6 pages, 4 figures
Ghost Noise for Regularizing Deep Neural Networks
Creators: name: Kosson, Atli
name: Fan, Dongyang
name: Jaggi, Martin
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Batch Normalization (BN) is widely used to stabilize the optimization process and improve the test performance of deep neural networks. The regularization effect of BN depends on the batch size and explicitly using smaller batch sizes with Batch Normalization, a method known as Ghost Batch Normalization (GBN), has been found to improve generalization in many settings. We investigate the effectiveness of GBN by disentangling the induced ``Ghost Noise'' from normalization and quantitatively analyzing the distribution of noise as well as its impact on model performance. Inspired by our analysis, we propose a new regularization technique called Ghost Noise Injection (GNI) that imitates the noise in GBN without incurring the detrimental train-test discrepancy effects of small batch training. We experimentally show that GNI can provide a greater generalization benefit than GBN. Ghost Noise Injection can also be beneficial in otherwise non-noisy settings such as layer-normalized networks, providing additional evidence of the usefulness of Ghost Noise in Batch Normalization as a regularizer.
Search for exoplanets in M31 with pixel-lensing and the PA-99-N2 event revisited
Creators: name: Ingrosso, G.
name: Calchi-Novati, S.
name: De Paolis, F.
name: Jetzer, Ph.
name: Nucita, A. A.
name: Zakharov, A. F.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Several exoplanets have been detected towards the Galactic bulge with the microlensing technique. We show that exoplanets in M31 may also be detected with the pixel-lensing method, if telescopes making high cadence observations of an ongoing microlensing event are used. Using a Monte Carlo approach we find that the mean mass for detectable planetary systems is about $2 M_{\rm {J}}$. However, even small mass exoplanets ($M_{\rm P} < 20 M_{\oplus}$) can cause significant deviations, which are observable with large telescopes. We reanalysed the POINT-AGAPE microlensing event PA-99-N2. First, we test the robustness of the binary lens conclusion for this light curve. Second, we show that for such long duration and bright microlensing events, the efficiency for finding planetary-like deviations is strongly enhanced with respect to that evaluated for all planetary detectable events.
description: 14 pages, 8 figures. Paper presented at the "II Italian-Pakistani Workshop on Relativistic Astrophysics, Pescara, July 8-10, 2009. To be published in a special issue of General Relativity and Gravitation (eds. F. De Paolis, G.F.R. Ellis, A. Qadir and R. Ruffini)
Hadron form factors from sum rules for vacuum-to-hadron correlators
Creators: name: Melikhov, Dmitri
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyse the extraction of the bound-state form factor from vacuum-to-hadron correlator, which is the basic object for the calculation of hadron form factors in the method of light-cone sum rules in QCD. We study this correlator in quantum mechanics, calculate it exactly, and derive the corresponding OPE. We then apply the standard procedures of QCD sum rules to isolate the ground-state form factor from this correlator. We demonstrate that fixing the effective continuum threshold, one of the key ingredients of the sum-rule calculation of bound-state parameters, poses a serious problem for sum rules based on vacuum-to-hadron correlators.
description: 8 pages
$μ$-norm of an operator
Creators: name: Treschev, Dmitry
Publisher: name: arXiv
Year: 2021
Subjects: subject: Dynamical Systems (math.DS)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 28D20, 47A30

description: Let $({\cal X},μ)$ be a measure space. For any measurable set $Y\subset{\cal X}$ let $1_Y : {\cal X}\to{\mathbb R}$ be the indicator of $Y$ and let $π_Y$ be the orthogonal projector $L^2({\cal X})\ni f\mapstoπ_Y f = 1_Y f$. For any bounded operator $W$ on $L^2({\cal X},μ)$ we define its $μ$-norm $\|W\|_μ= \inf_χ\sqrt{\sum μ(Y_j) \|Wπ_Y\|^2}$, where the infinum is taken over all measurable partitions $χ= \{Y_1,\ldots,Y_J\}$ of ${\cal X}$. We present some properties of the $μ$-norm and some computations. Our main motivation is the problem of the construction of a quantum entropy.
Lagrange Inversion Formula by Induction
Creators: name: Surya, Erlang
name: Warnke, Lutz
Publisher: name: arXiv
Year: 2023
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05A15, 05A19

description: We present a simple inductive proof of the Lagrange Inversion Formula.
description: 5 pages; to appear in The American Mathematical Monthly
Compsaraia compsa
Creators: name: Bernt, Maxwell J.
name: Albert, James S.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Gymnotiformes
Apteronotidae
Compsaraia
Compsaraia compsa

description: Compsaraia compsa : Venezuela: Amazonas: ANSP 163035, 12, 75–202, Rio Orinoco at Isla Raton, 5°5"N, 67°48"W; UMMZ 230828, 20, 164–259, Rio Atabapo at San Fernando de Atabapo, 3°51"1.9 90 1" "N, 67°38"48.37 3 7" "W. Apure: ANSP 160194, 1, PT, 262, Rio Meta, ca. 40 min upstream from confluence with Rio Orinoco, 0 6°1 8"N, 6 7°3 7"W; ANSP 165223, 2, 246–250, Rio Apure at San Fernando de Apure, 7°54"0" "N, 67°32"0" "W; ANSP 198399, 1, 257, Rio Apure at San Fernando de Apure, 7°53"59.8" "N, 67°29"15.9" "W. Barinas: FMNH 100737, 5, Rio Suripa between pumping station of Hato Mercedes and Boca Rio Anaro. Bolivar: ANSP 163033, 53, 9 CS, 90–326, Rio Orinoco at the mouth of the Rio Caura near Puerto Las Majadas, 0 7°3 8"3 6" "N, 6 4°5 0"W; ANSP 1 6 2 6 7 1, 2, 2 3 9–2 7 3, Rio Cuchivero, ca. 5 0 0 m from confluence of Rio Orinoco, 7°38"N, 65°56"W. Delta Amacuro: AMNH 217678, 2, 290–303, Rio Orinoco, just above Isla Varadero from kilometer 150–152; ANSP 149514, 2, 255–260, Rio Orinoco at Los Castillos, ca. km 162; ANSP 149522, 20, 1 1 7–2 1 6, Rio Orinoco at old shipping channel S. of Portuguesa, ca. km 117.
description: Published as part of Maxwell J. Bernt & James S. Albert, 2017, A New Species of Deep-channel Electric Knifefish Compsaraia (Apteronotidae, Gymnotiformes) from the Amazon River, pp. 211-219 in Copeia 105 (2) on page 218, DOI: 10.1643/CI-16-529, http://zenodo.org/record/1048340
Additional file 1 of Resurrected microorganisms: a plethora of resting bacteria underway for human interaction
Creators: name: Amin, Arshia
name: Khan, Inam Ullah
name: Amin, Mehroze
name: Fatima, Maliha
name: Sajjad, Wasim
name: Shah, Tawaf Ali
name: Dawoud, Turki M.
name: Wondmie, Gezahign Fentahun
Publisher: name: figshare
Year: 2024
Subjects: subject: Microbiology
subject: FOS: Biological sciences

description: Supplementary Material 1.
Spectral properties of a spin-incoherent Luttinger Liquid
Creators: name: Feiguin, A. E.
name: Fiete, G. A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present time-dependent density matrix renormalization group (DMRG) results for strongly interacting one dimensional fermionic systems at finite temperature. When interactions are strong the characteristic spin energy can be greatly suppressed relative to the characteristic charge energy, allowing for the possibility of spin-incoherent Luttinger liquid physics when the temperature is high compared to the spin energy, but small compared to the charge energy. Using DMRG we compute the spectral properties of the $t-J$ model at arbitrary temperatures with respect to both spin and charge energies. We study the full crossover from the Luttinger liquid regime to the spin-incoherent regime,focusing on small $J/t$, where the signatures of spin-incoherent behavior are more manifest. Our method allows us to access the analytically intractable regime where temperature is of the order of the spin energy, $T\sim J$. Our results should be helpful in the interpretation of experiments that may be in the crossover regime, $T\sim J$, and apply to one-dimensional cold atomic gases where finite-temperature effects are appreciable. The technique may also be used to guide the development of analytical approximations for the crossover regime.
description: 7 pages, 5 figures
TEMGYM Advanced: Software for electron lens aberrations and parallelised electron ray tracing
Creators: name: Landers, David
name: CLANCY, IAN
name: Dunin-Borkowski, Rafal E.
name: Stewart, Andrew
Publisher: name: University of Limerick
Year: 2023

description: Characterisation of the electron beams trajectory in an electron microscope is possible in a few select commercial software packages, but these tools and their source code are not available in a free and accessible manner. This paper introduces the free and open-source software TEMGYM Advanced, which implements ray tracing methods that calculate the path of electrons through a magnetic or electrostatic lens and allow evaluation of the first-order properties and third-order geometric aberrations. Validation of the aberration coefficient calculations is performed by implementing two independent methods – the aberration integral and differential algebra (DA) methods and by comparing the results of each. This paper also demonstrates parallelised electron ray tracing through a series of magnetic components, which enables near real-time generation of a physically accurate beam-spot including aberrations and brings closer the realisation of a digital twin of an electron microscope. TEMGYM Advanced represents a valuable resource for the electron microscopy community, providing an accessible and open source means of characterising electron lenses. This software utilises the Python programming language to complement the growing ecosystem of free and open-source software within the electron microscopy community, and to facilitate the application of machine learning to an electron microscope digital twin for instrument automation. The software is available under GNU Public License number Three (GPL 3).
Administration of pollution control in British Columbia : a focus on the mining industry
Creators: name: Moore, Patrick Albert
Publisher: name: University of British Columbia
Year: 2010

description: The rapid growth in world population and industrial technology over the past few decades has resulted in increasing competition for the use of the earth's resources. This has caused what have been termed "resource-use conflicts", the resolution of which requires a "decision-making process". In order to understand the manner in which resource-use decision-making operates in British Columbia, some legal, economic, social, administrative, and environmental factors involved were examined. As a working example of such decisionmaking, a detailed case history of the application for a Pollution Control Permit from the provincial Pollution Control Branch by Utah Construction and Mining Corporation is presented. The controversy surrounding the Company's plans to dispose of 9.3 million gallons of mine tailings daily into Rupert Inlet on northern Vancouver Island resulted in the holding of a public hearing by the Pollution Control Branch, the passage of new environmental legislation, and a court case. These events cast considerable light on the manner in which resource-use decision-making, that involves consideration of environmental factors, operates in British Columbia. Many weaknesses in the decision-making process are apparent, particularly the reluctance of the decision-makers to consider critical environmental factors in arriving at a conclusion regarding the use of resources. Two experimental studies were undertaken: firstly, a brief survey of a number of mining operations in southern British Columbia to determine whether or not the administration of pollution control in the province was effectively preventing unacceptable deterioration in the quality of water draining the mined areas; and secondly, a study of the circulation of water in Rupert Inlet, and the effect of the tailings discharge on the turbidity of the water in the inlet, to test the validity of the basic assumptions behind the granting of a pollution control permit to Utah Construction and Mining Corporation. The objective of these two studies was to show that with a limited budget and in a limited time it was possible to determine the adequacy of the existing pollution control decisionmaking process. The survey of the quality of water draining areas of mining activity revealed that existing mechanisms were not effectively preventing unacceptable heavy metal pollution of water, and that conventional tailings disposal is frequently inadequate and unacceptable from an environmental standpoint. The oceanographic survey of Rupert Inlet demonstrated the falacious nature of the basic assumption underlying Utah's pollution permit. Both studies showed conclusively that the pollution control decision-making process was not operating satisfactorily in British Columbia and that with limited time and finances it was possible to generate some of the information necessary to an adequate decision-making process.
On the z=4 Horava-Lifshitz Gravity
Creators: name: Cai, Rong-Gen
name: Liu, Yan
name: Sun, Ya-Wen
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider z=4 Horava-Lifshitz gravity in both 3+1 and 4+1 dimensions. We find black hole solutions in the IR region for a kind of z=4 Horava-Lifshitz gravity which is inherited from the new massive gravity in three dimensions and an analog of the new massive gravity in four dimensions through the quantum inheritance principle. We analyze thermodynamic properties for the black hole solutions for z=4 Horava-Lifshitz gravity. We also write out the Friedmann equation in 3+1 dimensions for cosmological solutions.
description: v3, reference added, version published in JHEP
Compsaraia samueli Albert 2001
Creators: name: Bernt, Maxwell J.
name: Albert, James S.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Gymnotiformes
Apteronotidae
Compsaraia
Compsaraia samueli

description: Compsaraia samueli: Brazil: Amazonas: ANSP 185098, 3, 1 CS, 141–162, Rio Içá, 9 km downriver of Betânia, 10.9 km upriver of Santo Antônio do Içá, 3°9"1" "S, 68°1"23" "W; ANSP 189212, 2, 140–221, Rio Negro, 18.6 km downriver of Moura, 13.5 km upriver of São Francisco, 1°34"23 " "S, 61°29"48" "W; FMNH 115054, 3, 185–197, Rio Negro, between tributaries Cuieras and Tarumã-Açu, between towns Santa Maria and Leprosário, 0 3°0 1"4 5" "S, 6 0°2 4"0 7" "W; FMNH 1 1 5 0 5 7, 2, Rio Negro, between Paraná da Floresta and Paraná da Cotia, between towns Moura and São Francisco, 0 1°33"43" "S, 61°30"25" "W; FMNH 115060, 12, 180–241, Rio Negro, between tributaries Curidique and Paraná Jacaré, between towns Novo Caioẽ and São Francisco de Assis, 0 1°5 8"3 0" "S, 61°1 4"2 0" "W; FMNH 115061, 1, 201, Rio Negro, between Paraná do Cantagalo and Paraná das Onças, between São Francisco and São Francisco de Assis, 0 1°4 4"1 9 " "S, 0 6 1°2 5"0 1" "W; FMNH 128401, 1, Rio Solimões, small side channel near Tefé, 3°19"54" "S, 64°40"33.6" "W. Pará: ANSP 197672, 11, 140–204, Rio Xingu at mouth of Rio Jaraucu, 1°4 9 "0 8.5 " "S, 52°14"25.8" "W; FMNH 114945, 13, 109–150, Rio Amazonas, between Furo de Urucuricaia and Paraná dos Arraiolos, between towns Almeirim and Gurupá, 0 1°2 9 "1 1 " "S, 0 52°0 9"46" "W; FMNH 114973, 27, 61–125, Rio Amazonas, between Furo do Surubim-Acu and Rio Tapajós, between towns Cab eca D ’ O nca an d S antar ém, 0 2°2 2 "3 4 " "S, 0 54°43"29" "W. Peru: Loreto: ANSP 178274, 2, 165–188, Rio Amazonas near Iquitos; ANSP 182209, 2, PT, 132–188, Rio Amazonas, near Iquitos, 3°4 3"2 1" "S, 7 3°1 2"1 4" "W; ANSP 182214, 1, PT, 159, Rio Amazonas near mouth of Rio Itaya at Iquitos, 3°40"36 " "S, 73°14"37" "W; FLMNH 122826, 1, 209, Rio Amazonas, near Iquitos; MUSM 54620, 43, 3 CS, 110– 181, Rio Nanay near Iquitos, 3°44"3.33" "S, 73°17"22.54 " "W; MUSM 546 3 8, 10, 68–15 1, Rio Amazonas near Iquitos, 3°49"11.5" "S, 73°0 9"31.2" "W. Madre de Dios: MUSM 36716, 1, 292, Rio Las Piedras, downstream from Santa Terezita, 12°30"29" "S, 69°15"14 " "W; MUSM 37150, 1, 259, Rio Madre de Dios, 5 km downstream of bridge at Puerto Maldonado, 12°35"51.2" "S, 69°8"43.4" "W; MUSM 37172, 6, 3 CS, 185–227, Rio Madre de Dios at mouth of Rio Tambopata, near Puerto Maldonado, 12°35"34.5" "S, 69°9"38.1" "W.
description: Published as part of Maxwell J. Bernt & James S. Albert, 2017, A New Species of Deep-channel Electric Knifefish Compsaraia (Apteronotidae, Gymnotiformes) from the Amazon River, pp. 211-219 in Copeia 105 (2) on page 218, DOI: 10.1643/CI-16-529, http://zenodo.org/record/1048340
title: Characterizing the elusive Vancouver Island wolverine, Gulo gulo vancouverensis, using historical DNA
Creators: name: Hessels, Evan W.
name: Lofroth, Eric C.
name: Weir, Richard D.
name: Gorrell, Jamieson C.
Publisher: name: Oxford University Press
Year: 2021
Subjects: subject: Wolverine--British Columbia--Vancouver Island

description: This document is a pre-copyedited, author-provided manuscript version of a published work that after revisions following peer review and technical editing by the publisher appeared in final form as: Hessels, E.W., Lofroth, E.C., Weir, R.D., & Gorrell, J.C. (2021). Characterizing the elusive Vancouver Island wolverine, Gulo gulo vancouverensis, using historical DNA. Journal of Mammalogy, 102(2), 530-540. To access the final edited and published work see: https://doi.org/10.1093/jmammal/gyaa175
description: The wolverine (Gulo gulo) is a Holarctic species found in North America primarily across the boreal forest, the subarctic, and along the Pacific coast, including Vancouver Island (VI), British Columbia. While wolverines on VI are rare and possibly extirpated, they have been previously described as a unique subspecies, G. g. vancouverensis, distinct from G. g. luscus from the mainland of North America. However, the validity of the VI subspecies is contentious, with conflicting results from studies of skull morphology. Here, we used molecular analyses to characterize the genetic diversity of the VI population and resolve this taxonomic debate to assist with conservation priorities. Historical DNA of VI wolverines was obtained from museum specimens, amplified at 16 nuclear microsatellite loci, and sequenced at the mitochondrial D-loop control region to compare with wolverines from mainland British Columbia. The VI population had lower allelic richness and was fixed for a single common mtDNA haplotype. Bayesian and non-Bayesian assignments using microsatellites generally revealed admixture across populations, implying allele frequencies between the VI and mainland populations were not significantly different. Hence, both types of genetic markers showed little evolutionary divergence between VI and the mainland population. Combined, these results do not provide evidence of significant genetic distinction for VI wolverines, nor support the subspecific classification. Immediate conservation efforts should focus on estimating population size, while future conservation planning can assume VI wolverines likely are not a unique genetic population and there remains the potential for natural recolonization of wolverines to VI.
Pariosternarchus amazonensis
Creators: name: Bernt, Maxwell J.
name: Albert, James S.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Gymnotiformes
Apteronotidae
Pariosternarchus
Pariosternarchus amazonensis

description: Pariosternarchus amazonensis: Brazil: Amazonas: ANSP 192996, 3, 1 CS, 100–110, Rio Amazonas above Madeira, 11.5 km downstream of Novo Oriente, 4.4 km upstream of São Jose do Amatari, 3°17"21" "S, 58°54"28" "W; MCP 34917, 1 CS, PT, Paraná Maiana, Mamirauá Lake System, municipality of Alvarães, 3°0 6"44.4" "S, 64°47"31.8" "W.
description: Published as part of Maxwell J. Bernt & James S. Albert, 2017, A New Species of Deep-channel Electric Knifefish Compsaraia (Apteronotidae, Gymnotiformes) from the Amazon River, pp. 211-219 in Copeia 105 (2) on page 218, DOI: 10.1643/CI-16-529, http://zenodo.org/record/1048340
Non-extensive Statistical Mechanics and the Thermodynamic Stability of FRW Universe
Creators: name: Liu, Yang
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this article, we investigate the thermodynamic stability of the FRW universe for two examples, Tsallis entropy and loop quantum gravity, by considering non-extensive statistical mechanics. The heat capacity, free energy and pressure of the universe are obtained. For the Tsallis entropy model, we obtained the constraint for $β$, namely, $1/2 < β< 2$. The free energy of a thermal equilibrium universe must be less than zero. We suggest that the reason for the accelerated expansion of the universe is not due to Tsallis entropy. Similar results are obtained for loop quantum gravity. However, since the values of $Λ(γ)$ and $q$ cannot be determined in this model, the results become more subtle than that in the Tsallis entropy model. In addition, we compare the results for the universe with those for a Schwarzschild black hole.
$μ$-norm and regularity
Creators: name: Treschev, Dmitry
Publisher: name: arXiv
Year: 2021
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 28D20, 47A30

description: In \cite{Tre_PSI20} we introduce the concept of a $μ$-norm for a bounded operator in a Hilbert space. The main motivation is the extension of the measure entropy to the case of quantum systems. In this paper we recall the basic results from \cite{Tre_PSI20} and present further results on the $μ$-norm. More precisely, we specify three classes of unitary operators for which the $μ$-norm generates a bistochastic operator. We plan to use the latter in the construction of quantum entropy.
Dilatonic Effect in Double Field Theory Cosmology
Creators: name: Liu, Yang
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this article we discuss some aspects of double field theory cosmology with an emphasis on the role played by the dilaton. The cosmological solutions of double field theory equations of motion after coupling a shifted dilaton to them are investigated. The equations of motion for a constant shifted dilaton and a constant usaul dilaton in an FRW universe are obtained. The solutions of these equations are obtained in both the supergravity frame and in the winding frame. We also consider three possible dark energy candidates in a 4D universe using double field theory cosmology and find some basic conditions which the three dark energy candidates should satisfy. We consider the results for a more general potential of shifted dilaton as well.
Porotergus duende
Creators: name: Bernt, Maxwell J.
name: Albert, James S.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Gymnotiformes
Apteronotidae
Porotergus
Porotergus duende

description: Porotergus duende: Peru: Loreto: ANSP 200463, 14, 2 CS, 90– 175, Rio Nanay at Pampachica, 0 3°26.111"S, 0 73°30.03"W; ANSP 200483, 6, 67–190, Rio Amazonas downstream of Iquitos, 0 3°43.647"S, 0 73°12.19"W.
description: Published as part of Maxwell J. Bernt & James S. Albert, 2017, A New Species of Deep-channel Electric Knifefish Compsaraia (Apteronotidae, Gymnotiformes) from the Amazon River, pp. 211-219 in Copeia 105 (2) on page 218, DOI: 10.1643/CI-16-529, http://zenodo.org/record/1048340
Palatini Higgs inflation and the refined dS conjecture
Creators: name: Liu, Yang
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The refined de Sitter derivative conjecture provides constraints to potentials that are low energy effective theories of quantum gravity. It can give direct bounds on inflationary scenarios and determine whether the theory is in the Landscape or the Swampland. Any infationary model can be checked by these conditions and non-minimally coupled scalar field theory is not an exception. We consider the Palatini Higgs inflation scenario taking the refined de Sitter derivative conjecture into account. According to the latest cosmological observations from Planck 2018, BICEP2+Keck and the bound of non-minimal coupling parameter ξ, we suggest that if the refined dS conjecture does indeed hold, then the Palatini Higgs inflation model cannot be the low energy effective theory of a consistent quantum gravity theory since the two parameters c1 and c2 are much smaller than order 1, which is inconsistent with the refined dS conjecture. Therefore we suggest that it is in the Swampland.
Sternarchella sima Eigenmann 1905
Creators: name: Bernt, Maxwell J.
name: Albert, James S.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Gymnotiformes
Apteronotidae
Sternarchella
Sternarchella sima

description: Sternarchella sima: Brazil: Pará: ANSP 192108, 2, 145–157, Rio Pará above Rio Tocantins, 83.3 km upriver from Abaetetuba, 9.1 km downriver from Boa Vista, 1°45"22" "S, 49°28"48 " "W; USNM 373114, 8, 2 CS, 136–158, Rio Amazonas, 15 km above Breves.
description: Published as part of Maxwell J. Bernt & James S. Albert, 2017, A New Species of Deep-channel Electric Knifefish Compsaraia (Apteronotidae, Gymnotiformes) from the Amazon River, pp. 211-219 in Copeia 105 (2) on page 218, DOI: 10.1643/CI-16-529, http://zenodo.org/record/1048340
SAVING, IGNORING, ‘TRASHING’: REFLECTIONS ON ‘SEEING WASTE SCENARIOS’ FROM BLANTYRE, MALAWI
Creators: name: Kalina, Marc
Publisher: name: figshare
Year: 2021
Subjects: Uncategorized

description: For those who reside within one of Africa’s emerging cities, waste, in the form of litter, is part and parcel of the urban fabric: an element of urban life that must be constantly negotiated, utilised, or, more likely, ignored by city dwellers. But how do individuals ‘see’ these objects through the quotidian interactions that shape their daily routines and decision-making processes driving choice; at what point does ‘trash’ become something more than a nuisance that can be ignored, transforming into a problem that must be dealt with, or an opportunity that can be capitalised on? This purpose of this paper is to present our ‘Seeing Waste Scenarios’, a creative and participatory qualitative methodological tool that invites participants to co-investigate decision-making processes around urban litter. To provide a quantitative snapshot of individual decision-making patterns, as a prelude to further analysis, we assess 45 individual scenarios conducted in a public park in Blantyre, Malawi. Initial findings firmly discredit the notion of ‘waste’ as a uniformly understood concept, and importantly forces us to question if or when ‘litter’ is even a problem within the daily lives of our respondents. Far from being a barrier to be surmounted, more often, litter represented opportunity, a desirable item that could be reused, or simply something that could be ignored. Moreover, findings suggest that within Blantyre, conceptualisations of ‘waste’ and ‘trash’, strongly inform individual processes of decision-making regarding litter, and that these conceptualisations are deeply personal. Finally, although some of the understandings of litter maybe broadly held, such as the belief that broken glass is ‘trash’ because it is a public safety hazard, the conceptualisation of it as such, is deeply informed by the local context, which may not be transferrable to other contexts. These findings are important because they show that there are significant degrees of reuse and circularity already existent within urban dwellers’ waste relationships. The scenario methodology can be replicatable in other African and Global South contexts, and should inform a more nuanced, and less normatively Western waste management studies discourse.
The generation and transformation of polarisation signals in molecular lines through collective anisotropic resonant scattering
Creators: name: Houde, Martin
name: Lankhaar, Boy
name: Rajabi, Fereshteh
name: Chamma, Mohammed A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We discuss the existence of elliptical polarisation in rotational spectral lines of CO and other molecules within the context of the Anisotropic Resonant Scattering (ARS) model. We show that the effect of ARS on the radiation field can lead to not only the previously predicted transformation of background linear polarisation into circular polarisation (i.e., Faraday conversion), but also the occurrence of Faraday rotation and the generation of elliptically polarised signals in an otherwise initially unpolarised radiation field. This is due to a collective behaviour between the large number of molecules acting as a diffraction ensemble that strongly favours forward scattering over any other mode. Our application to astronomical data demonstrates the dependency of the Stokes parameters on the strength and orientation of the ambient magnetic field, and suggests that ARS will manifest itself for a wide range of molecular species and transitions.
description: 20 pages, 8 figures, accepted for publication MNRAS
Probabilistic Models of k-mer Frequencies (Extended Abstract)
Creators: name: Gafurov, Askar
name: Vinař, Tomáš
name: Brejová, Broňa
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: In this article, we review existing probabilistic models for modeling abundance of fixed-length strings (k-mers) in DNA sequencing data. These models capture dependence of the abundance on various phenomena, such as the size and repeat content of the genome, heterozygosity levels, and sequencing error rate. This in turn allows to estimate these properties from k-mer abundance histograms observed in real data. We also briefly discuss the issue of comparing k-mer abundance between related sequencing samples and meaningfully summarizing the results.
Traversable wormhole inspired by non-commutative geometries in $f(Q)$ gravity with conformal symmetry
Creators: name: Mustafa, G.
name: Hassan, Zinnat
name: Sahoo, P. K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This article is based on the study of wormhole geometries in the context of symmetric teleparallel gravity or $f(Q)$ gravity, where $Q$ is the non-metricity scalar, and it is responsible for the gravitational interaction. To discuss the wormhole solutions, we consider spherically symmetric static spacetime metric with anisotropic matter contents under well-known non-commutative distributions known as Gaussian and Lorentzian distributions with an extra condition of permitting conformal killing vectors (CKV). This work aims to obtain wormhole solutions under these distributions, and through we found that wormhole solutions exist under these Gaussian and Lorentzian sources with viable physical properties. Further, we examine the stability of our obtained solutions through Tolman-Oppenheimer-Volkoff (TOV) equation and found that our calculated results are stable.
description: Annals of Physics published version
Additional file 1 of Determination of thermal properties of grouting materials for borehole heat exchangers (BHE)
Creators: name: Albers, Anna
name: Huttenloch, Petra
name: Zorn, Roman
name: Steger, Hagen
name: Blum, Philipp
Publisher: name: figshare
Year: 2024
Subjects: subject: Space Science
subject: Medicine
subject: Molecular Biology
subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Supplementary Material 1
Weak branch and multimodal convection in rapidly rotating spheres at low Prandtl number
Creators: name: Garcia, Ferran
name: Stefani, Frank
name: Dormy, Emmanuel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences
subject: 76U60, 76E20, 76E30, 37N10, 37M20, 37G40

description: The focus of this study is to investigate primary and secondary bifurcations to weakly nonlinear flows (weak branch) in convective rotating spheres in a regime where only strongly nonlinear oscillatory sub- and super-critical flows (strong branch) were previously found in [E. J. Kaplan, N. Schaeffer, J. Vidal, and P. Cardin, Phys. Rev. Lett. 119, 094501 (2017)]. The relevant regime corresponds to low Prandtl and Ekman numbers, indicating a predominance of Coriolis forces and thermal diffusion in the system. We provide the bifurcation diagrams for rotating waves (RWs) computed by means of continuation methods and the corresponding stability analysis of these periodic flows to detect secondary bifurcations giving rise to quasiperiodic modulated rotating waves (MRWs). Additional direct numerical simulations (DNS) are performed for the analysis of these quasiperiodic flows for which Poincaré sections and kinetic energy spectra are presented. The diffusion time scales are investigated as well. Our study reveals very large initial transients (more than 30 diffusion time units) for the nonlinear saturation of solutions on the weak branch, either RWs or MRWs, when DNS are employed. In addition, we demonstrate that MRWs have multimodal nature involving resonant triads. The modes can be located in the bulk of the fluid or attached to the outer sphere and exhibit multicellular structures. The different resonant modes forming the nonlinear quasiperiodic flows can be predicted with the stability analysis of RWs, close to the Hopf bifurcation point, by analyzing the leading unstable Floquet eigenmode.
description: 22 pages, 19 figures, 4 tables
Additional file 1 of Criteria-based outpatient scheduling at a nephrology clinic: prospective evaluation of patient pre-assessment and its corresponding adaptive scheduling strategy
Creators: name: Klaas, Ruben
name: Lok-Visser, Jedidja
name: Doornebal, Joan
name: Roelofs, Ton
name: Rachuba, Sebastian
name: Leeftink, Gréanne
Publisher: name: figshare
Year: 2024
Subjects: Medicine
Molecular Biology
Environmental Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Science Policy
Mental Health

description: Supplementary Material 1.
Present status of radiative and rare kaon decays
Creators: name: Cata, Oscar
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I review recent developments in rare and radiative kaon decays from the theory side, with emphasis on those modes that are actively analyzed by the experimental collaborations.
description: 8 pages. Proceedings of the event "A Virtual Tribute to Quark Confinement and the Hadron Spectrum" (August 2nd-6th 2021)
The notion of equivalence and lexical cohesion in the translation of political speeches
Creators: name: Mehawesh, Mohammad <1975>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: L-LIN/12 Lingua e traduzione - Lingua inglese

description: Abstract
This dissertation investigates the notion of equivalence with particular reference to lexical cohesion in the translation of political speeches. Lexical cohesion poses a particular challenge to the translators of political speeches and thus preserving lexical cohesion elements as one of the major elements of cohesion is undoubtedly crucial to their translation equivalence. We rely on Halliday’s (1994) classification of lexical cohesion which comprises: repetition, synonymy, antonymy, meronymy and hyponymy. Other traditional models of lexical cohesion are examined. We include Grammatical Parallelism for its role in creating textual semantic unity which is what cohesion is all about.
The study shed light on the function of lexical cohesion elements as rhetorical device. The study also deals with lexical problems resulting from the transfer of lexical cohesion elements from the SL into the TL, which is often beset by many problems that most often result from the differences between languages. Three key issues are identified as being fundamental to equivalence and lexical cohesion in the translation of political speeches: sociosemiotic approach, register analysis, rhetoric, and poetic function.
The study also investigates the lexical cohesion elements in the translation of political speeches from English into Arabic, Italian and French in relation to ideology, and its control, through bias and distortion. The findings are discussed, implications examined and topics for further research suggested.
Zeeman dependence of the quasiparticle scattering rate and ARPES in copper oxides and related materials
Creators: name: Kastrinakis, George
Publisher: name: arXiv
Year: 2023
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Within a strongly interacting Fermi liquid framework, we calculate the effects of the Zeeman energy $ω_H$ for a finite magnetic field, in a metallic system with a van Hove peak in the density of states, located close to and below the Fermi surface. We find that the chemical potential increases with the square of $ω_H$. We obtain a characteristic quasiparticle scattering rate linear in the maximum of $ω_H$ and temperature, both in the normal and the d-wave superconducting state. We predict that ARPES experiments in copper oxides, and related compounds, should be able to elucidate this behavior of the scattering rate, and in particular, the difference between spin up and down electrons.
description: 8 pages, including figures