cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Quantifying fermionic interactions from the violation of Wick's theorem
Creators: name: Pachos, Jiannis K.
name: Vlachou, Chrysoula
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In contrast to interacting systems, the ground state of free systems has a highly ordered pattern of quantum correlations, as witnessed by Wick's decomposition. Here, we quantify the effect of interactions by measuring the violation they cause on Wick's decomposition. In particular, we express this violation in terms of the low entanglement spectrum of fermionic systems. Moreover, we establish a relation between the Wick's theorem violation and the interaction distance, the smallest distance between the reduced density matrix of the system and that of the optimal free model closest to the interacting one. Our work provides the means to quantify the effect of interactions in physical systems though measurable quantum correlations.
description: 7 pages + 2 pages Appendix; minor errors corrected
Single-shot quantum measurements sketch quantum many-body states
Creators: name: Wang, Jia-Bao
name: Zhang, Yi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum measurements are our eyes to the quantum systems consisting of a multitude of microscopic degrees of freedom. However, the intrinsic uncertainty of quantum measurements and the exponentially large Hilbert space pose natural barriers to simple interpretations of the measurement outcomes. We propose a nonlinear "measurement energy" based upon the measurement outcomes and an iterative effective-Hamiltonian approach to extract the most probable states (maximum likelihood estimates) in an efficient and general fashion, thus reconciling the non-commuting observables and getting more out of the quantum measurements. We showcase the versatility and accuracy of our perspective on random long-range fermion models and Kitaev quantum spin liquid models, where smoking-gun signatures were lacking. Our study also paves the way towards concepts such as nonlinear-operator Hamiltonian and applications such as parent Hamiltonian reconstruction.
description: 6 pages, 5 figures
Study of n-γ discrimination in low energy range (above 40 keVee) by charge comparison method with a BC501A liquid scintillation detector
Creators: name: Chen, Yonghao
name: Chen, Ximeng
name: Zhang, Xiaodong
name: Lei, Jiarong
name: An, Li
name: Shao, Jianxiong
name: Zheng, Pu
name: Wang, Xinhua
name: Zhu, Chuanxin
name: He, Tie
name: Yang, Jian
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: A VME-based experiment system for n-γ discrimination using the charge comparison method was established. A data acquisition program for controlling the programmable modules and processing data online via VME64X bus was developed through the use of LabVIEW. The two-dimensional (2D) scatter plots of the charge in the slow component vs. the total charge of recorded pulses from Am-Be and Cf neutron sources were presented. The 2D scatter plots of the energy vs. the ratio of the charge in the slow component to the total charge of the pulses were presented at the meantime. The quality of n-γ discrimination was checked by the figure-of-merit, and the results showed good performance of n-γ discrimination at low energy range. Neutrons and γ-rays were separated above 50 keVee (electron-equivalent energy). The quality of n-γ discrimination have been improved compared with others' results at 5 energies (150, 250, 350, 450, 550 keVee).
description: 5 pages, 7 figures. Accepted by Chinese Physics C in Sep. 2013
title: Investigation of Ex vivo detection of DNA adducts in relation to mutation frequency
Creators: name: Masoud, Abdelhafid
Publisher: name: University of Liverpool Repository
Year: 2023

description: Mutations in human genes have been extensively identified and studied. Many genes show characteristic ‘Hot Spots’ for mutations and mutational spectra. The former often cause oncogenic changes that drive cancers, whilst the latter reflects prevailing sources of DNA damage that lead to mutation. Many types of DNA damaging agents and DNA repair mechanisms are known but their significance at the level of an individual base sequence is unclear and methods to determine specific positions of DNA damage in vivo are not available. This means that the processes that determine overall susceptibility to damage and how it leads to fixation as a deleterious mutation and is subsequently selected cannot be fully understood. This is exemplified by the human genome RAS genes. They have highly similar sequences. All three isoforms become oncogenic when constitutively activating mutations occur in either of two mutational “Hot Spots”, codons 12 to 13 and codon 61. Despite these similarities, they have very different mutational spectra. Here, the prospect of developing a non-a priori method for detecting sequence specific damage ex vivo was investigated. Methods of sequence target enrichment are DNA damaging by their nature because they require heat and heat is DNA damaging. Isothermal methods are needed. It is shown here that a loop oligonucleotide ligated to both ends of a DNA fragment allowed it to be copied in a highly repetitive fashion by Rolling Circle Amplification and the products could be read as single molecules by a next generation sequencer. The prospect for using the RecA protein for isothermal target enrichment was also demonstrated. Sequence accuracy was explored in the presence of new and known DNA damage. It was found that features of the sequencer used, primarily its reliance on single stranded DNA from a double strand, limited the accuracy of sequencing for the purpose here. Further work based on these investigations is expected to deliver the required method, allowing unprecedent measurements of DNA damage at specific sequences.
Quark deconfinement in high-mass neutron stars
Creators: name: Orsaria, M.
name: Rodrigues, H.
name: Weber, F.
name: Contrera, G. A.
Publisher: name: arXiv
Year: 2013
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 paper, we explore whether or not quark deconfinement may occur in high-mass neutron stars such as J1614-2230 (1.97 \pm 0.04 M_Sun) and J0348+0432 (2.01 \pm 0.04 M_Sun). Our study is based on a non-local extension of the SU(3) Nambu Jona-Lasinio (n3NJL) model with repulsive vector interactions among the quarks. This model goes beyond the frequently used local version of the Nambu Jona-Lasinio (NJL) model by accounting for several key features of QCD which are not part of the local model. Confined hadronic matter is treated in the framework of non-linear relativistic mean field theory. We find that both the local as well as the non-local NJL model predict the existence of extended regions of mixed quark-hadron (quark-hybrid) matter in high-mass neutron stars with masses of 2.1 to 2.4 M_Sun. Pure quark matter in the cores of neutron stars is obtained for certain parametrizations of the hadronic lagrangian and choices of the vector repulsion among quarks. The radii of high-mass neutron stars with quark-hybrid matter and/or pure quark matter cores in their centers are found to lie in the canonical range of 12 to 13 km.
description: 31 pages, 17 figures, PRC accepted version
Nematic single-component superconductivity and loop-current order from pair-density wave instability
Creators: name: Wårdh, Jonatan
name: Granath, Mats
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We investigate the nematic and loop-current type orders that may arise as vestigial precursor phases in a model with an underlying pair-density wave (PDW) instability. We discuss how such a vestigial phase gives rise to a highly anisotropic stiffness for a coexisting single-component superconductor with low intrinsic stiffness, as is the case for the underdoped cuprate superconductors. Next, focusing on a regime with a mean-field PDW ground state with loop-current and nematic $xy$ (B$_{2g}$) order, we find a preemptive transition into a low and high-temperature vestigial phase with loop-current and nematic order corresponding to $xy$ (B$_{2g}$) and $x^2-y^2$ (B$_{1g}$) symmetry respectively. Near the transition between the two phases, a state of soft nematic order emerges for which we expect that the nematic director is readily pinned away from the high-symmetry directions in the presence of an external field. Results are discussed in relation to findings in the cuprates, especially to the recently inferred highly anisotropic superconducting fluctuations [Wårdh {\em et al.}, ``Colossal transverse magnetoresistance due to nematic superconducting phase fluctuations in a copper oxide'', arXiv:2203.06769], giving additional evidence for an underlying ubiquitous PDW instability in these materials.
description: 19 pages, 9 figures, and 2 tables
Dark Energy coupling with electromagnetism as seen from future low-medium redshift probes
Creators: name: Calabrese, E.
name: Martinelli, M.
name: Pandolfi, S.
name: Cardone, V. F.
name: Martins, C. J. A. P.
name: Spiro, S.
name: Vielzeuf, P. E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Beyond the standard cosmological model the late-time accelerated expansion of the universe can be reproduced by the introduction of an additional dynamical scalar field. In this case, the field is expected to be naturally coupled to the rest of the theory's fields, unless a (still unknown) symmetry suppresses this coupling. Therefore, this would possibly lead to some observational consequences, such as space-time variations of nature's fundamental constants. In this paper we investigate the coupling between a dynamical Dark Energy model and the electromagnetic field, and the corresponding evolution of the fine structure constant ($α$) with respect to the standard local value $α_0$. In particular, we derive joint constraints on two dynamical Dark Energy model parametrizations (the Chevallier-Polarski-Linder and Early Dark Energy model) and on the coupling with electromagnetism $ζ$, forecasting future low-medium redshift observations. We combine supernovae and weak lensing measurements from the Euclid experiment with high-resolution spectroscopy measurements of fundamental couplings and the redshift drift from the European Extremely Large Telescope, highlighting the contribution of each probe. Moreover, we also consider the case where the field driving the $α$ evolution is not the one responsible for cosmic acceleration and investigate how future observations can constrain this scenario.
description: 15 pages, 12 figures
Exponential convergence of a dissipative quantum system towards finite-energy grid states of an oscillator
Creators: name: Sellem, Lev-Arcady
name: Campagne-Ibarcq, Philippe
name: Mirrahimi, Mazyar
name: Sarlette, Alain
name: Rouchon, Pierre
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Optimization and Control (math.OC)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Based on the stabilizer formalism underlying Quantum Error Correction (QEC), the design of an original Lindblad master equation for the density operator of a quantum harmonic oscillator is proposed. This Lindblad dynamics stabilizes exactly the finite-energy grid states introduced in 2001 by Gottesman, Kitaev and Preskill for quantum computation. Stabilization results from an exponential Lyapunov function with an explicit lower-bound on the convergence rate. Numerical simulations indicate the potential interest of such autonomous QEC in presence of non-negligible photon-losses.
description: Submitted, 15 pages, 1 figures
An Interpretive Framework for Narrower Immunity Under Section 230 of the Communications Decency Act
Creators: name: Dickinson, Gregory M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Almost all courts to interpret Section 230 of the Communications Decency Act have construed its ambiguously worded immunity provision broadly, shielding Internet intermediaries from tort liability so long as they are not the literal authors of offensive content. Although this broad interpretation effects the basic goals of the statute, it ignores several serious textual difficulties and mistakenly extends protection too far by immunizing even direct participants in tortuous conduct. This analysis, which examines the text and history of Section 230 in light of two strains of pre-Internet vicarious liability defamation doctrine, concludes that the immunity provision of Section 230, though broad, was not intended to abrogate entirely traditional common law notions of vicarious liability. Some bases of vicarious liability remain, and their continuing validity both explains the textual puzzles courts have faced in applying Section 230 and undergirds the push by a small minority of courts to narrow the section's immunity provision.
Higher Braidings of Diagonal Type
Creators: name: Cuntz, Michael
name: Ohrmann, Tobias
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Algebra (math.QA)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 17B22, 16T30, 20F55

description: Heckenberger introduced the Weyl groupoid of a finite-dimensional Nichols algebra of diagonal type. We replace the matrix of its braiding by a higher tensor and present a construction which yields further Weyl groupoids. Abelian cohomology theory gives evidence for the existence of a higher braiding associated to such a tensor.
An Empirical Study of Obstacle Preemption in the Supreme Court
Creators: name: Dickinson, Gregory M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Economics (econ.GN)
subject: FOS: Economics and business

description: The Supreme Court's federal preemption decisions are notoriously unpredictable. Traditional left-right voting alignments break down in the face of competing ideological pulls. The breakdown of predictable voting blocs leaves the business interests most affected by federal preemption uncertain of the scope of potential liability to injured third parties and unsure even of whether state or federal law will be applied to future claims. This empirical analysis of the Court's decisions over the last fifteen years sheds light on the Court's unique voting alignments in obstacle preemption cases. A surprising anti-obstacle preemption coalition is forming as Justice Thomas gradually positions himself alongside the Court's liberals to form a five-justice voting bloc opposing obstacle preemption.
Asymptotic freedom, asymptotic flatness and cosmology
Creators: name: Kiritsis, Elias
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Holographic RG flows in some cases are known to be related to cosmological solutions. In this paper another example of such correspondence is provided. Holographic RG flows giving rise to asymptotically-free $β$-functions have been analyzed in connection with holographic models of QCD. They are shown upon Wick rotation to provide a large class of inflationary models with logarithmically-soft inflaton potentials. The scalar spectral index is universal and depends only on the number of e-foldings. The ratio of tensor to scalar power depends on the single extra real parameter that defines this class of models. The Starobinsky inflationary model as well as the recently proposed models of T-inflation are members of this class. The holographic setup gives a completely new (and contrasting) view to the stability, naturalness and other problems of such inflationary models.
description: 17 pages, LateX. (v2) References added, comments on naturalness and generalisations added
Oryzomys albigularis
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Oryzomys
Oryzomys albigularis

description: Oryzomys albigularis (Tomes, 1860). Proc. Zool. Soc. Lond., 1860:264. TYPE LOCALITY: Ecuador, Chimborazo Prov., Pallatanga, 4950 ft. DISTRIBUTION: Montane forests of N and W Venezuela, easternmost Panama, Andes of Colombia and Ecuador, to N Peru. SYNONYMS: caracolus, childi, maculiventer, meridensis, moerex, oconnelli, pectoralis, pirrensis, villosus. COMMENTS: Hershkovitz's (1944) footnoted listing of specific synonyms of O. albigularis set the precedent for Cabrera's (1961) arrangement of the South American forms as subspecies, a viewpoint reiterated in regional studies (e.g., Handley, 1966a, 1976). Gardner and Patton (1976) demonstrated the composite nature of Hershkovitz's (1944) and Cabrera's (1961) concept of albigularis; however, the determination of priority and refinement of distributions require much museum-based research. Here we tentatively follow the taxonomy of Gardner and Patton (1976) and Patton et al. (1990) and recognize O. auriventer, O. devius, O. keaysi, and O. levipes as separate species (see those accounts). Gardner and Patton (1976) reassociated Cabrera's (1961) name-combination O. a. boliviae as a junior synonym of O. nitidus.
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 720, DOI: 10.5281/zenodo.7353098
description: {"references": ["Hershkovitz, P. 1944. Systematic review of the Neotropical water rats of the genus Nectomys (Cricetinae). Miscellaneous Publications, Museum of Zoology, University of Michigan, 58: 1 - 101.", "Handley, C. O., Jr. 1966 a. Checklist of the mammals of Panama. Pp. 753 - 795, in Ectoparasites of Panama, (R. L. Wenzel and V. J. Tipton, eds.). Field Museum of Natural History, Chicago, 861 pp.", "Gardner, A. L., and J. L. Patton. 1976. Karyotypic variation in oryzomyine rodents (Cricetinae) with comments on chromosomal evolution in the Neotropical cricetine complex. Occasional Papers of the Museum of Zoology, Louisiana State University, 49: 1 - 48."]}
Electron-phonon interaction contribution to the total energy of group IV semiconductor polymorphs: evaluation and implications
Creators: name: Varma, R. Arjun
name: Paul, Shilpa
name: Itale, Anup
name: Pable, Pranav
name: Tibrewala, Radhika
name: Dodal, Samruddhi
name: Yerunkar, Harshal
name: Bhaumik, Saurav
name: Shah, Vaishali
name: Gururajan, M. P.
name: Prasanna, T. R. S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In density functional theory (DFT) based total energy studies, the van der Waals (vdW) and zero-point vibrational energy (ZPVE) correction terms are included to obtain energy differences between polymorphs. We propose and compute a new correction term to the total energy, due to electron-phonon interactions (EPI). We rely on Allen's general formalism, which goes beyond the Quasi-Harmonic Approximation (QHA), to include the free energy contributions due to quasiparticle interactions. We show that, for semiconductors and insulators, the EPI contributions to the free energies of electrons and phonons are the corresponding zero-point energy contributions. Using an approximate version of Allen's formalism in combination with the Allen-Heine theory for EPI corrections, we calculate the zero-point EPI corrections to the total energy for cubic and hexagonal polytypes of Carbon, Silicon and Silicon Carbide. The EPI corrections alter the energy differences between polytypes. In SiC polytypes, the EPI correction term is more sensitive to crystal structure than the vdW and ZPVE terms and is thus essential in determining their energy differences. It clearly establishes that the cubic SiC-3C is metastable and hexagonal SiC-4H is the stable polytype. Our results are consistent with the experimental results of Kleykamp. Our study enables the inclusion of EPI corrections as a separate term in the free energy expression. This opens the way to go beyond the QHA by including the contribution of EPI on all thermodynamic properties.
description: 30 pages and 2 figures
Calibrating Chevron for Preemption
Creators: name: Dickinson, Gregory M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Economics (econ.GN)
subject: FOS: Economics and business

description: Now almost three decades since its seminal Chevron decision, the Supreme Court has yet to articulate how that case's doctrine of deference to agency statutory interpretations relates to one of the most compelling federalism issues of our time: regulatory preemption of state law. Should courts defer to preemptive agency interpretations under Chevron, or do preemption's federalism implications demand a less deferential approach? Commentators have provided no shortage of possible solutions, but thus far the Court has resisted all of them. This Article makes two contributions to the debate. First, through a detailed analysis of the Court's recent agency-preemption decisions, I trace its hesitancy to adopt any of the various proposed rules to its high regard for congressional intent where areas of traditional state sovereignty are at risk. Recognizing that congressional intent to delegate preemptive authority varies from case to case, the Court has hesitated to adopt an across-the-board rule. Any such rule would constrain the Court and risk mismatch with congressional intent -- a risk it accepts under Chevron generally but which it finds particularly troublesome in the delicate area of federal preemption. Second, building on this previously underappreciated factor in the Court's analysis, I suggest a novel solution of variable deference that avoids the inflexibility inherent in an across-the-board rule while providing greater predictability than the Court's current haphazard approach. The proposed rule would grant full Chevron-style deference in those cases where congressional delegative intent is most likely -- where Congress has expressly preempted some state law and the agency interpretation merely resolves preemptive scope -- while withholding deference in those cases where Congress has remained completely silent as to preemption and delegative intent is least likely.
Defect Line Coarsening and Refinement in Active Nematics
Creators: name: Kralj, Nika
name: Ravnik, Miha
name: Kos, Žiga
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Active matter is naturally out of equilibrium which results in the emergence of diverse dynamic steady states, including the omnipresent chaotic state known as the active turbulence. However, much less is known how active systems dynamically depart out of these configurations, such as get excited or damped to a different dynamic steady state. In this Letter, we demonstrate the coarsening and refinement dynamics of topological defect lines in three-dimensional active nematic turbulence. Specifically, using theory and numerical modelling, we are able to predict the evolution of the active defect density away from the steady state due to time-dependent activity or viscoelastic material properties, establishing a single length scale phenomenological description of defect line coarsening/refinement in a three-dimensional active nematic. The approach is first applied to growth dynamics of a single active defect loop, and then to a full three-dimensional active defect network. More generally, this work provides insight into the general coarsening phenomena between dynamical regimes in 3D active matter, with a possible analogy in other physical systems.
description: 11 pages, 4 figures in the main text and 5 figures in the SI
Update on Light WIMP Limits: LUX, lite and Light
Creators: name: Del Nobile, Eugenio
name: Gelmini, Graciela B.
name: Gondolo, Paolo
name: Huh, Ji-Haeng
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We reexamine the current direct dark matter data including the recent CDMSlite and LUX data, assuming that the dark matter consists of light WIMPs, with mass close to 10 GeV/$c^2$ with spin-independent and isospin-conserving or isospin-violating interactions. We compare the data with a standard model for the dark halo of our galaxy and also in a halo-independent manner. In our standard-halo analysis, we find that for isospin-conserving couplings, CDMSlite and LUX together exclude the DAMA, CoGeNT, CDMS-II-Si, and CRESST-II possible WIMP signal regions. For isospin-violating couplings instead, we find that a substantial portion of the CDMS-II-Si region is compatible with all exclusion limits. In our halo-independent analysis, we find that for isospin-conserving couplings, the situation is of strong tension between the positive and negative results, as it was before the LUX and CDMSlite bounds, which turn out to exclude the same possible WIMP signals as previous limits. For isospin-violating couplings, we find that LUX and CDMS-II-Si bounds together exclude or severely constrain the DAMA, CoGeNT and CRESST-II possible WIMP signals.
description: 15 pages, 15 figures. v2: minor revisions and CoGeNT 2014 data added
The origin of ultramassive white dwarfs: hints from Gaia EDR3
Creators: name: Fleury, Leesa
name: Caiazzo, Ilaria
name: Heyl, Jeremy
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Gaia Data Release 2 revealed a population of ultramassive white dwarfs on the Q branch that are moving anomalously fast for a local disc population with their young photometric ages. As the velocity dispersion of stars in the local disc increases with age, a proposed explanation of these white dwarfs is that they experience a cooling delay that causes current cooling models to infer photometric ages much younger than their true ages. To explore this explanation, we investigate the kinematics of ultramassive white dwarfs within 200 pc of the Sun using the improved Gaia Early Data Release 3 observations. We analyse the transverse motions of 0.95 - 1.25 $M_\odot$ white dwarfs, subdivided by mass and age, and determine the distributions of the three-dimensional components of the transverse velocities. The results are compared to expectations based on observed kinematics of local main-sequence stars. We find a population of photometrically young ($\sim$ 0.5 - 1.5 Gyr) ultramassive ($\sim$ 1.15 - 1.25 $M_\odot$) white dwarfs for which the transverse velocity component in the direction of Galactic rotation is more dispersed than for local disc stars of any age; thus, it is too dispersed to be explained by any cooling delay in white dwarfs originating from the local disc. Furthermore, the dispersion ratio of the velocity components in the Galactic plane for this population is also inconsistent with a local disc origin. We discuss some possible explanations of this kinematically anomalous population, such as a halo origin or production through dynamical effects of stellar triple systems.
description: 11 pages, 3 figures, published in MNRAS
Oryzomys alfaroi
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Oryzomys
Oryzomys alfaroi

description: Oryzomys alfaroi (J. A. Allen, 1891). Bull. Am. Mus. Nat. Hist., 3:214. TYPE LOCALITY: Costa Rica, Alajuela Prov., San Carlos. DISTRIBUTION: Lowland to lower montane forests from S Tamaulipas and Oaxaca, Mexico, through Middle America, to W Colombia and Ecuador. SYNONYMS: agrestis, dariensis, gloriaensis, gracilis, incertus (of J. A. Allen, 1908), intagensis, palatinus, palmirae. COMMENTS: Goldman (1918) forged a broad definition of the species, expanded more so by Hall and Kelson (1959), which encompassed many forms previously treated as distinct (e.g., Merriam, 1901). We recognize chapmani, rhabdops, and saturatior as species (revision in progress). Oryzomys alfaroi proper may be more closely related to melanotis-rostratus than to the chapmani-saturatior group. Karyotype reported by Haiduk et al. (1979) and Engstrom (1984).
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 720, DOI: 10.5281/zenodo.7353098
description: {"references": ["Allen, J. A. 1908. Mammals from Nicaragua. Bulletin of the American Museum of Natural History, 24: 647 - 670.", "Goldman, E. A. 1918. The rice rats of North America (Genus Oryzomys). North American Fauna, 43: 1 - 100.", "Hall, E. R., and K. R. Kelson. 1959. The mammals of North America. Ronald Press Co., New York, 1: 1 - 546; 2: 547 - 1083 + 79.", "Haiduk, M. W., J. W. Bickham, and D. J. Schmidly. 1979. Karyotypes of six species of Oryzomys from Mexico and Central America. Journal of Mammalogy, 60: 610 - 615.", "Engstrom, M. D. 1984. Chromosomal, genic, and morphological variation in the Oryzomys melanotis species group. Unpubl. PhD. dissertation, Texas A & M University, 171 pp."]}
The equation of state for non-ideal quark gluon plasma
Creators: name: Naggar, N. M. El
name: Salem, L. I. Abou
name: Shalaby, A. G.
name: Bourham, M. A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences
subject: F.2.2
subject: 28Axx

description: The mass spectra of quarkonium systems at temperature equal zero are analyzed by solving the non-relativistic radial wave equation using the internal energy potential. The QGP matter is studied through the dissociations of quarkonium systems. A modified form of the internal energy potential function is used to determine the EoS at different number of quark flavors by using Mayer s cluster expansion theory and phenomenological thermodynamic model. The thermodynamic model gives a good agreement with the lattice results rather than Mayer s cluster expansion theory. One can conclude that, the Mayer s cluster expansion theory may be more suitable to study a weakly coupled plasma while, the QGP may be considered as a strongly interacting plasma.
description: 19 pages, 9 figures
A Model of Fluid-Structure and Biochemical Interactions for Applications to Subclinical Leaflet Thrombosis
Creators: name: Barrett, Aaron
name: Brown, Jordan A.
name: Smith, Margaret Anne
name: Woodward, Andrew
name: Vavalle, John P.
name: Kheradvar, Arash
name: Griffith, Boyce E.
name: Fogelson, Aaron L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Subclinical leaflet thrombosis (SLT) is a potentially serious complication of aortic valve replacement with a bioprosthetic valve in which blood clots form on the replacement valve. SLT is associated with increased risk of transient ischemic attacks and strokes and can progress to clinical leaflet thrombosis. SLT following aortic valve replacement also may be related to subsequent structural valve deterioration, which can impair the durability of the valve replacement. Because of the difficulty in clinical imaging of SLT, models are needed to determine the mechanisms of SLT and could eventually predict which patients will develop SLT. To this end, we develop methods to simulate leaflet thrombosis that combine fluid-structure interaction and a simplified thrombosis model that allows for deposition along the moving leaflets. Additionally, this model can be adapted to model deposition or absorption along other moving boundaries. We present convergence results and quantify the model's ability to realize changes in valve opening and pressures. These new approaches are an important advancement in our tools for modeling thrombosis in which they incorporate both adhesion to the surface of the moving leaflets and feedback to the fluid-structure interaction.
description: 29 pages, 11 figures
Reinforcement Learning Framework for Opportunistic Routing in WSNs
Creators: name: Rao, G. Srinivas
name: Ramana, A. V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Routing packets opportunistically is an essential part of multihop ad hoc wireless sensor networks. The existing routing techniques are not adaptive opportunistic. In this paper we have proposed an adaptive opportunistic routing scheme that routes packets opportunistically in order to ensure that packet loss is avoided. Learning and routing are combined in the framework that explores the optimal routing possibilities. In this paper we implemented this Reinforced learning framework using a customer simulator. The experimental results revealed that the scheme is able to exploit the opportunistic to optimize routing of packets even though the network structure is unknown.
description: 05 Pages,07 Figures, 01 Table, IJCSN, Volume 2, Issue 5
MEDICINAL PLANT EFFLUENTS, A SOURCE OFBIOACTIVE COMPOUNDS AND THEIR APPLICATIONS INPROCESSED FOODS
Creators: name: Topi, Dritan
Publisher: name: Zenodo
Year: 2024

description: The water effluents produced from medicinal plants contain several organic molecules, normally categorized as secondary metabolites, and to a lesser extent, they also include primary metabolites. Utilizingplant extracts as a source of bioactive chemicals is especially intriguing in the development of fortified foods,pharmaceutical formulations, andtherapeutic and cosmetic preservatives. The essential oil and polyphenol fractions obtained from the phase of the effluents exhibit distinct profiles. The compounds are utilized as dietary supplements to improve humannutritionstatus, as feed additivesin animal feeding, as biocides for plant protection. Previous studies have documented the antimicrobial properties of plant components against different pathogens, namely those that cause foodborne illnesses. Natural antimicrobials play a vital role in food preservation and health management of bacterial infections in humans and farmed crops. More recently, there has been a significant focus on using essential oils and extracted chemicals to inhibit the growth of harmful microbes.Various phenolics have been empirically shown to possess strong antioxidant, antiviral, anti-inflammatory, and antidiabetic properties, and are gaining attention in application within cosmetics and medicines.Their substantial significance in the industry underscores the intriguing potential of these water effluents as pharmacologically active components or organic preservatives for the future of natural medicine.
Two-dimensional massive integrable models on a torus
Creators: name: Kostov, Ivan
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 81U15

description: The finite-volume thermodynamics of a massive integrable QFT is described in terms of a grand canonical ensemble of loops immersed in a torus and interacting through scattering factors associated with their intersections. The path integral of the loops is evaluated explicitly after decoupling the pairwise interactions by a Hubbard-Stratonovich transformation. The HS fields are holomorphic fields depending on the rapidity and can be expanded in elementary oscillators. The torus partition function is expressed as certain expectation value in the Fock space of these oscillators. In the limit where one of the periods of the torus becomes asymptotically large, the effective field theory becomes mean field type. The mean field describes the infinite-volume thermodynamics which is solved by the Thermodynamical Bethe Ansatz.
description: 34 pages, 11 figures, a typo corrected
Oryzomys auriventer Thomas 1890
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Oryzomys
Oryzomys auriventer

description: Oryzomys auriventer Thomas, 1890. Ann. Mag. Nat. Hist., ser. 4, 7:379. TYPE LOCALITY: Ecuador, Tungurahua Prov., upper Rio Pastaza, Mirador, 1500 m. DISTRIBUTION: E Ecuador and N Peru. SYNONYMS: nimbosus. COMMENTS: A subspecies of O. albigularis sensu Cabrera (1961); considered distinct by Gardner and Patton (1976).
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 720, DOI: 10.5281/zenodo.7353098
description: {"references": ["Gardner, A. L., and J. L. Patton. 1976. Karyotypic variation in oryzomyine rodents (Cricetinae) with comments on chromosomal evolution in the Neotropical cricetine complex. Occasional Papers of the Museum of Zoology, Louisiana State University, 49: 1 - 48."]}
Action-at-a-distance electrodynamics in Quasi-steady-state cosmology
Creators: name: Deshpande, Kaustubh Sudhir
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Action-at-a-distance electrodynamics - alternative approach to field theory - can be extended to cosmological models using conformal symmetry. An advantage of this is that the origin of arrow of time in electromagnetism can be attributed to the cosmological structure. Different cosmological models can be investigated, based on Wheeler-Feynman absorber theory, and only those models can be considered viable for our universe which have net full retarded electromagnetic interactions i.e. forward direction of time. This work evaluates quasi-steady-state model and demonstrates that it admits full retarded and not advanced solution. Thus QSSC satisfies this necessary condition for a correct cosmological model, based on action-at-a-distance formulation.
description: Section 4 added with supplementary calculation; 8 pages; 1 figure; Communicated by Prof. J. V. Narlikar (IUCAA, Pune, India); Submitted to Pramana (Journal of Physics published by Indian Academy of Sciences) on Sep 4, 2013
Variational Autoencoder Leveraged MMSE Channel Estimation
Creators: name: Baur, Michael
name: Fesl, Benedikt
name: Koller, Michael
name: Utschick, Wolfgang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Signal Processing (eess.SP)
subject: Information Theory (cs.IT)
subject: Machine Learning (stat.ML)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: We propose to utilize a variational autoencoder (VAE) for data-driven channel estimation. The underlying true and unknown channel distribution is modeled by the VAE as a conditional Gaussian distribution in a novel way, parameterized by the respective first and second order conditional moments. As a result, it can be observed that the linear minimum mean square error (LMMSE) estimator in its variant conditioned on the latent sample of the VAE approximates an optimal MSE estimator. Furthermore, we argue how a VAE-based channel estimator can approximate the MMSE channel estimator. We propose three variants of VAE estimators that differ in the data used during training and estimation. First, we show that given perfectly known channel state information at the input of the VAE during estimation, which is impractical, we obtain an estimator that can serve as a benchmark result for an estimation scenario. We then propose practically feasible approaches, where perfectly known channel state information is only necessary in the training phase or is not needed at all. Simulation results on 3GPP and QuaDRiGa channel data attest a small performance loss of the practical approaches and the superiority of our VAE approaches in comparison to other related channel estimation methods.
description: Accepted for publication at Asilomar 2022
title: Abolition and Agenda: The role of ideas in the construction of the UK Government response to human trafficking and modern slavery
Creators: name: Williams-Woods, Alexandra
Publisher: name: University of Liverpool Repository
Year: 2024

description: When the UK Modern Slavery Act (2015) was passed in March 2015 it was proclaimed by the government to be ‘world leading’. The Act represented the culmination of several years of political focus on the issue of modern slavery, led by then Home Secretary Theresa May. This period also saw the reframing of ‘human trafficking’ to ‘modern slavery’ in government discourse. Discussion within the literature has argued that human trafficking/modern slavery (HTMS) policy responses in the UK have been the result of immigration agendas, international pressure, or domestic campaigning. A small field of scholarship has applied methods of public policy analysis to the problem. However, there has been a paucity of research attempting to understand how the ‘problem’ of HTMS has been constructed in UK political discourse, and how this influences policy responses. There is also a lack of understanding of why policies took the form they did at crucial policy moments. By focusing on the role of ‘ideas’ and using an interpretive policy analysis methodology drawing on Discursive Institutionalism, this thesis analyses the discursive construction of HTMS in the UK between 2000 and 2015. The argument is made that as a ‘new’ policy area, the construction of HTMS was influenced by existing policy discourses within certain key areas with which there is overlap: immigration, sex work, and economic regulation. This research demonstrates that the interaction between these discourses initially created an understanding of HTMS that was based on extreme examples of exploitation and a ‘moral obligation’ to respond, with a corresponding securitization of the border. This changed in 2013, when a discursive shift took place that obscured immigration discourses and emphasised the threat to UK society and economy from ‘modern slavery’. This research contributes to the existing literature by theorising the link between the problem construction and policy agenda of HTMS. By focusing on intersecting policy areas of immigration, sex work, and economic regulation this thesis develops an understanding of the importance of domestic political communication and contestation in HTMS construction. Using Discursive Institutionalist theory, the research evidences the communication of ideas as a causal mechanism in the development of the modern slavery policy field.
Multilevel Summation for Dispersion: A Linear-Time Algorithm for $r^{-6}$ Potentials
Creators: name: Tameling, Daniel
name: Springer, Paul
name: Bientinesi, Paolo
name: Ismail, Ahmed E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We have extended the multilevel summation (MLS) method, originally developed to evaluate long-range Coulombic interactions in molecular dynamics (MD) simulations [Skeel et al., J. Comput. Chem., 23, 673 (2002)], to handle dispersion interactions. While dispersion potentials are formally short-ranged, accurate calculation of forces and energies in interfacial and inhomogeneous systems require long-range methods. The MLS method offers some significant advantages compared to the particle-particle particle-mesh and smooth particle mesh Ewald methods. Unlike mesh-based Ewald methods, MLS does not use fast Fourier transforms and is thus not limited by communication and bandwidth concerns. In addition, it scales linearly in the number of particles, as compared with the $\mathcal{O}(N \log N)$ complexity of the mesh-based Ewald methods. While the structure of the MLS method is invariant for different potentials, every algorithmic step had to be adapted to accommodate the $r^{-6}$ form of the dispersion interactions. In addition, we have derived error bounds, similar to those obtained by Hardy for the electrostatic MLS [Hardy, Ph.D. thesis, University of Illinois at Urbana-Champaign (2006)]. Using a prototype implementation, we have demonstrated the linear scaling of the MLS method for dispersion, and present results establishing the accuracy and efficiency of the method.
Oryzomys balneator Thomas 1900
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Oryzomys
Oryzomys balneator

description: Oryzomys balneator Thomas, 1900. Ann. Mag. Nat. Hist., ser. 7, 5:273. TYPE LOCALITY: Ecuador, Napo-Pastaza Prov., upper Rio Pastaza, Mirador, 1500 m. DISTRIBUTION: E and S Ecuador, N Peru. SYNONYMS: hesperus. COMMENTS: Relationships obscure; range extent uncertain.
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 720, DOI: 10.5281/zenodo.7353098
Oryzomys bolivaris J. A. Allen 1901
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Oryzomys
Oryzomys bolivaris

description: Oryzomys bolivaris J. A. Allen, 1901. Bull. Am. Mus. Nat. Hist., 14:405. TYPE LOCALITY: Ecuador, Bolivar Prov., Porvenir, 1800 m. DISTRIBUTION: Lowland evergreen forest from E Honduras, through E Nicaragua, Costa Rica and Panama, to W Colombia and W Ecuador. SYNONYMS: alleni, bombycinus, castaneus, orinus, rivularis. COMMENTS: Names conventionally applied to this species include bombycinus, as reviewed by Pine (1971), and rivularis, as discussed by Gardner and Patton (1976). Priority of bolivaris presented by Musser and Gardner (in litt.), who summarized the morphological variation and geographic distribution of the species.
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 720, DOI: 10.5281/zenodo.7353098
description: {"references": ["Gardner, A. L., and J. L. Patton. 1976. Karyotypic variation in oryzomyine rodents (Cricetinae) with comments on chromosomal evolution in the Neotropical cricetine complex. Occasional Papers of the Museum of Zoology, Louisiana State University, 49: 1 - 48."]}