cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
An exact expression to calculate the derivatives of position-dependent observables in molecular simulations with flexible constraints
Creators: name: Echenique, Pablo
name: Cavasotto, Claudio N.
name: De Marco, Monica
name: García-Risueño, Pablo
name: Alonso, J. L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: In this work, we introduce an algorithm to compute the derivatives of physical observables along the constrained subspace when flexible constraints are imposed on the system (i.e., constraints in which the hard coordinates are fixed to configuration-dependent values). The presented scheme is exact, it does not contain any tunable parameter, and it only requires the calculation and inversion of a sub-block of the Hessian matrix of second derivatives of the function through which the constraints are defined. We also present a practical application to the case in which the sought observables are the Euclidean coordinates of complex molecular systems, and the function whose minimization defines the constraints is the potential energy. Finally, and in order to validate the method, which, as far as we are aware, is the first of its kind in the literature, we compare it to the natural and straightforward finite-differences approach in three molecules of biological relevance: methanol, N-methyl-acetamide and a tri-glycine peptide
description: 13 pages, 8 figures, published version
Quantum Spin Hall Insulators with Interactions and Lattice Anisotropy
Creators: name: Wu, Wei
name: Rachel, Stephan
name: Liu, Wu-Ming
name: Hur, Karyn Le
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the interplay between spin-orbit coupling and electron-electron interactions on the honeycomb lattice combining the cellular dynamical mean-field theory and its real space extension with analytical approaches. We provide a thorough analysis of the phase diagram and temperature effects at weak spin-orbit coupling. We systematically discuss the stability of the quantum spin Hall phase toward interactions and lattice anisotropy resulting in the plaquette-honeycomb model. We also show the evolution of the helical edge states characteristic of quantum spin Hall insulators as a function of Hubbard interaction and anisotropy. At very weak spin-orbit coupling and intermediate electron-electron interactions, we substantiate the existence of a quantum spin liquid phase.
description: 7 pages, 9 figures, final version
Quasilinear Parabolic Equations and the Ricci Flow on Manifolds with Boundary
Creators: name: Pulemotov, Artem
Publisher: name: arXiv
Year: 2010
Subjects: subject: Analysis of PDEs (math.AP)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: The first part of the paper discusses a second-order quasilinear parabolic equation in a vector bundle over a compact manifold $M$ with boundary $\partial M$. We establish a short-time existence theorem for this equation. The second part of the paper is devoted to the investigation of the Ricci flow on $M$. We propose a new boundary condition for the flow and prove two short-time existence results.
description: 18 pages
Nuclear envelope laminopathies: evidence for developmentally inappropriate chromatin-nuclear envelope interactions
Creators: name: Perovanovic, Jelena
name: Jaiswal, Jyoti
name: Markovic, Nikola
name: Hoffman, Eric
Publisher: name: Springer Nature
Year: 2013
Subjects: Lamin
Nuclear Envelope
Myogenic Cell
Emerin
Myogenic Lineage

description: During terminal differentiation of cells, there is typically a transition of the nuclear envelope from the Lamin B protein to Lamin A/C proteins. This is commensurate with exit from the cell cycle, and maintenance of the transcriptional programs associated with the terminally differentiated cells. Dominant missense mutations in Lamin A/C cause a broad spectrum of human genetic disorders, where specific point mutations are associated with defects in specific organs or tissues. We have previously presented a model where Lamin A/C mutations disrupt developmentally appropriate interactions between chromatin and the nuclear envelope and lead to poor coordination of E2F cell cycle pathways and terminal differentiation pathways [1]. One of the phenotypes caused by Lamin A/C mutations is Emery Dreifuss Muscular Dystrophy (EDMD). An X-linked recessive phenocopy of EDMD is caused by loss of function of emerin – a binding partner to Lamin A/C at the nuclear envelope. Here, we tested the hypothesis that emerin plays a role in chromatin remodeling via stabilizing nuclear lamina-heterochromatin interactions necessary for appropriate and time dependent muscle differentiation. We used WT and emerin null mouse myogenic stem cells to study transcriptional and epigenetic changes during in vitro exit from the cell cycle and differentiation to the myogenic lineage. Specific cell cycle (E2F) and myogenic genes were analyzed by qPCR and ChlP-qPCR to determine mRNA timing and H3K9me3 enrichment on gene promoters. Nuclear lamina-chromatin colocalization was determined and quantified by confocal imaging and Matlab. Our results showed that TK1 and other cell cycle genes are inappropriately persistently expressed in emerin null cells during differentiation causing delayed exit from cell cycle. Transcripts marking commitment to the myogenic lineage (myogenin and Mef5A) showed delayed activation on both mRNA and protein level. Epigenetic imprints predicted observed deviations from transcriptional timing in emerin null cells, with persistent suppressive chromatin state on myog promoter upon myogenic induction and failure to appropriately establish repressive histone marks (H3K9me3) on Tk1 promoter (cell cycle). Finally, we showed that the early cell cycle exit and terminal differentiation of emerin null myoblasts were accompanied by decreased H3K9me3 staining at the nuclear periphery (lamin A/C immunostaining). Myogenic cells lacking emerin exhibit perturbations in terminal commitment to the myogenic lineage. Our transcriptional, chromatin remodeling and gene promoter accessibility data show that both exit from cell cycle and terminal commitment to myogenesis are disrupted due to inappropriate heterochromatin-nuclear lamina interactions in EMD myogenic cells.
Chemical abundances and ages of the bulge stars in APOGEE high-velocity peaks
Creators: name: Zhou, Yingying
name: Liu, Chao
name: Li, Zhao-Yu
name: Mao, Shude
Publisher: name: Zenodo
Year: 2019

description: A cold, high-velocity (HV, ~200 km/s) peak  was first reported in several Galactic bulge fields based on the Apache Point Observatory Galaxy Evolution Experiment (APOGEE) commissioning observations. Both the existence and the nature of the HV peak are still under debate. Here we revisit this feature with the latest APOGEE DR13 data.  We find that most of the low latitude bulge fields display a skewed Gaussian distribution with an HV shoulder. However, only 3 out of 53 fields show distinct HV peaks around 200 km/s. The velocity distribution can be well described by Gauss$-$Hermite polynomials, except for the three fields showing clear HV peaks. We find that the correlation between the skewness parameter h3 and the mean velocity, instead of a distinctive HV peak, is a strong indicator of the bar. It was recently suggested that the HV peak is composed of preferentially young stars. We choose three fields showing clear HV peaks to test this hypothesis using the metallicity, [alpha/M] and [C/N] as age proxies. We find that both young and old stars show HV features. The similarity between the chemical abundances of stars in the HV peaks and the main component indicates that they are not systematically different in terms of chemical abundance or age. In contrast, there are clear differences in chemical space between stars in the Sagittarius dwarf and the bulge stars. The strong HV peaks off-plane are still to be explained properly and could be different in nature. Note that APOGEE1 only covers the positive longitude side of the bulge. Nowadays APOGEE2 covers the whole bulge and the data of some negative fileds are available. We will show some preliminary results on velocity distributions in the negative longitude side of the bulge.
'We're all coming through fine' : the observed self of the screen actor in the multi-role performances of Peter Sellers and Buster Keaton
Creators: name: Gartner, Matthew
Publisher: name: University of British Columbia
Year: 2017

description: In Stars, Richard Dyer writes that star actors “seem to be of a different order of being, a different ‘ontological category’” than other people (49). It is here, in the core question of studies on screen acting, that this thesis places itself. Building on Dyer’s claim, this work documents a unique category of existence for film actors: beings that are legitimately understood as one of three separate types of individuals (a character, a persona, or a private self), while also regarded as an accumulation of all those three (many characters, the many roles that create a persona, and the visible and invisible parts of one’s personal life). Another part of the screen actor that facilitates this existence—something not yet encountered in film studies discourse—is referred to here as the observed self, which allows for the many disparate pieces of an actor to be corralled into one body. As part of this analysis, Michel Foucault’s notion of the care of the self is employed, allowing for the identification of an observed self in films such as The Mouse that Roared (Jack Arnold, 1959), Dr. Strangelove (Stanley Kubrick, 1964), and The Play House (Buster Keaton, 1921). After one chapter that surveys trends in screen acting academia, and another on the relevant Foucauldian concepts, this thesis examines performances from Peter Sellers and Buster Keaton to identify the observed self on screen. This piece of identity is found in films that house all three of the different components of an actor’s constitution. Once the components of the observed self are identified within these films, the thesis identifies moments in which audiences must rely on this to place themselves within a familiar viewing experience. I argue that these moments are broadcast at a high frequency in films where actors play multiple roles, and that actors employ Foucault’s notion of transgression, with this inherent quality allowing the viewer to see them as beings that are both unified and disintegrated.
Search for boosted low-mass resonances decaying into hadrons produced in association with a photon in pp collisions at $\sqrt{s}=$13 TeV with the ATLAS detector
Creators: name: ATLAS Collaboration
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Many extensions of the Standard Model, including those with dark matter particles, propose new mediator particles that decay into hadrons. This paper presents a search for such low mass narrow resonances decaying into hadrons using 140 fb$^{-1}$ of proton-proton collision data recorded with the ATLAS detector at a centre-of-mass energy of 13 TeV. The resonances are searched for in the invariant mass spectrum of large-radius jets with two-pronged substructure that are recoiling against an energetic photon from initial state radiation, which is used as a trigger to circumvent limitations on the maximum data recording rate. This technique enables the search for boosted hadronically decaying resonances in the mass range 20-100 GeV hitherto unprobed by the ATLAS Collaboration. The observed data are found to agree with Standard Model predictions and 95% confidence level upper limits are set on the coupling of a hypothetical new spin-1 $Z'$ resonance with Standard Model quarks as a function of the assumed $Z'$-boson mass in the range between 20 and 200 GeV.
description: 38 pages in total, author list starting page 21, 5 figures, 0 tables, published on JHEP. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2022-33
Concordance to links with unknotted components
Creators: name: Cha, Jae Choon
name: Ruberman, Daniel
Publisher: name: arXiv
Year: 2011
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M25, 57M27, 57N70

description: We show that there are links whose individual components are concordant to the unknot, but which are not concordant to any link with unknotted components. We give examples in the topological category, and examples in the smooth category which are topologically slice. We also give generalizations regarding components of prescribed Alexander polynomials. The main tools are covering link calculus, algebraic invariants of rational knot concordance theory, and the correction term of Heegaard Floer homology.
description: Final version, to appear in Algebraic & Geometric Topology
การพัฒนาระบบตรวจจับเม็ดยาสำหรับเครื่องจ่ายยาอัตโนมัติ
Creators: name: สุเมธ เหมะวัฒนะชัย
Publisher: name: Faculty of Engineeing Naresuan University
Year: 2021
Subjects: ระบบตรวจจับเม็ดยา
เครื่องจ่ายยาอัตโนมัติ
เซ็นเซอร์อินฟราเรด

description: Naresuan University Engineering Journal, 16, 1, 14-27
Mirror Map as Generating Function of Intersection Numbers: Toric Manifolds with Two Kähler Forms
Creators: name: Jinzenji, Masao
Publisher: name: arXiv
Year: 2010
Subjects: subject: Algebraic Geometry (math.AG)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this paper, we extend our geometrical derivation of expansion coefficients of mirror maps by localization computation to the case of toric manifolds with two Kähler forms. Especially, we take Hirzebruch surfaces F_{0}, F_{3} and Calabi-Yau hypersurface in weighted projective space P(1,1,2,2,2) as examples. We expect that our results can be easily generalized to arbitrary toric manifold.
description: 45 pages, 2 figures, minor errors are corrected, English is refined. Section 1 and Section 2 are enlarged. Especially in Section 2, confusion between the notion of resolution and the notion of compactification is resolved. Computation under non-zero equivariant parameters are added in Section2
Massless Fermion Mixing for Semispinorial Torsional Interaction
Creators: name: Fabbri, Luca
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider a geometric approach to field theory in which torsion is present in the matter field equations, and we develop the consequences of the torsion-spin coupling for a pair of single-handed spinors; we show these interactions to have the structure of a flavour-changing neutral current giving rise to a mixing for two massless fermion fields: as torsional interactions for semispinors entail mixing for massless fermions we speculate that this mechanism could be responsible for oscillations of neutrinos.
description: 5 pages
Massive star formation and evolution in the Galactic Centre
Creators: name: Evans, Chris
Publisher: name: Zenodo
Year: 2019

description: The Galactic Centre provides us with a unique laboratory to study the formation of massive stars in a circumnuclear starburst. I will introduce our KMOS programme to observe the massive-star populations of the Central Molecular Zone (CMZ). This includes stars in the massive Arches and Quintuplet clusters to investigate their spectral content and ages. The multiplex of KMOS has given us the largest census of these clusters to date and, via stacking of multi-epoch observations in the Arches, we have been able to identify main-sequence and giant stars for the first time. With KMOS we have also targeted the diffuse stellar population of the CMZ, to characterise their natures and to investigate their origins (specifically, whether they formed in-situ in relative isolation).
Metallicity-Dependent quenching of Star Formation at High Redshift in Small Galaxies
Creators: name: Krumholz, Mark R.
name: Dekel, Avishai
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: [abridged] The star formation rates (SFR) of low-metallicity galaxies depend sensitively on the gas metallicity, because metals are crucial to mediating the transition from intermediate-temperature atomic gas to cold molecular gas, a necessary precursor to star formation. We study the impact of this effect on the star formation history of galaxies. We incorporate metallicity-dependent star formation and metal enrichment in a simple model that follows the evolution of a halo main progenitor. Our model shows that including the effect of metallicity leads to suppression of star formation at redshift z>2 in dark halos with masses
description: 25 pages, 18 figures, emulateapj format, accepted to ApJ. Resolution of some figures degraded to fit within arXiv size limits. A full resolution version is available at http://www.ucolick.org/~krumholz/publications.html
การพัฒนากระเบื้องยางปูพื้นจากพอลิเมอร์ผสมระหว่างพอลิไวนิลคลอไรด์และคลอรีนพอลิเอทิลีน
Creators: name: ชาตรี หอมเขียว
Publisher: name: Faculty of Engineeing Naresuan University
Year: 2021
Subjects: พอลิไวนิลคลอไรด์
คลอริเนตพอลิเอทิลีน
กระเบื้องยางปูพื้น
การวิเคราะห์สถิติ
การอัดร้อน

description: Naresuan University Engineering Journal, 16, 1, 73-80
Thermodynamics of the three-dimensional Hubbard model: Implications for cooling cold atomic gases in optical lattices
Creators: name: De Leo, Lorenzo
name: Bernier, Jean-Sebastien
name: Kollath, Corinna
name: Georges, Antoine
name: Scarola, Vito W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a comprehensive study of the thermodynamic properties of the three-dimensional fermionic Hubbard model, with application to cold fermionic atoms subject to an optical lattice and a trapping potential. Our study is focused on the temperature range of current experimental interest. We employ two theoretical methods - dynamical mean-field theory and high-temperature series - and perform comparative benchmarks to delimitate their respective range of validity. Special attention is devoted to understand the implications that thermodynamic properties of this system have on cooling. Considering the distribution function of local occupancies in the inhomogeneous lattice, we show that, under adiabatic evolution, the variation of any observable (e.g., temperature) can be conveniently disentangled into two distinct contributions. The first contribution is due to the redistribution of atoms in the trap during the evolution, while the second one comes from the intrinsic change of the observable. Finally, we provide a simplified picture of the cooling procedure recently proposed in J.-S. Bernier et al., Phys. Rev. A 79, 061601 (2009) by applying this method to an idealized model.
description: 17 pages, 27 figures, version published in PRA
ความต้านทานคลอไรด์และกําลังอัดของคอนกรีตผสมซิลิก้าฟูม
Creators: name: ทวีชัย สําราญวานิช
Publisher: name: Faculty of Engineeing Naresuan University
Year: 2021
Subjects: คอนกรีต
ซิลิก้าฟูม
ความต้านทานคลอไรด์
สัมประสิทธิ์การแพร่คลอไรด์
กําลังอัด

description: Naresuan University Engineering Journal, 16, 1, 107-118
Evolution of cichlid vision via trans-regulatory divergence
Creators: name: O’Quin, Kelly E
name: Schulte, Jane E
name: Patel, Zil
name: Kahn, Nadia
name: Naseer, Zan
name: Wang, Helena
name: Conte, Matthew A
name: Carleton, Karen L
Publisher: name: Springer Nature
Year: 2012
Subjects: Linkage Group
Color Vision
Structural Mutation
Opsin Gene
Opsin Expression

description: Phenotypic evolution may occur through mutations that affect either the structure or expression of protein-coding genes. Although the evolution of color vision has historically been attributed to structural mutations within the opsin genes, recent research has shown that opsin regulatory mutations can also tune photoreceptor sensitivity and color vision. Visual sensitivity in African cichlid fishes varies as a result of the differential expression of seven opsin genes. We crossed cichlid species that express different opsin gene sets and scanned their genome for expression Quantitative Trait Loci (eQTL) responsible for these differences. Our results shed light on the role that different structural, cis-, and trans-regulatory mutations play in the evolution of color vision. We identified 11 eQTL that contribute to the divergent expression of five opsin genes. On three linkage groups, several eQTL formed regulatory “hotspots” associated with the expression of multiple opsins. Importantly, however, the majority of the eQTL we identified (8/11 or 73%) occur on linkage groups located trans to the opsin genes, suggesting that cichlid color vision has evolved primarily via trans-regulatory divergence. By modeling the impact of just two of these trans-regulatory eQTL, we show that opsin regulatory mutations can alter cichlid photoreceptor sensitivity and color vision at least as much as opsin structural mutations can. Combined with previous work, we demonstrate that the evolution of cichlid color vision results from the interplay of structural, cis-, and especially trans-regulatory loci. Although there are numerous examples of structural and cis-regulatory mutations that contribute to phenotypic evolution, our results suggest that trans-regulatory mutations could contribute to phenotypic divergence more commonly than previously expected, especially in systems like color vision, where compensatory changes in the expression of multiple genes are required in order to produce functional phenotypes.
การพัฒนาประสิทธิภาพในกระบวนการผลิตยางแท่ง STR 20 โดยใช้การออกแบบการทดลอง
Creators: name: นิภาส ลีนะธรรม
Publisher: name: Faculty of Engineeing Naresuan University
Year: 2021
Subjects: การออกแบบการทดลอง
การวิเคราะห์สมรรถภาพกระบวนการ
มาตรฐานยางแท่งไทย 20
จุดขาวในยางแท่ง

description: Naresuan University Engineering Journal, 16, 1, 119-139
Massless Dirac Fermions in Electromagnetic Field
Creators: name: Jellal, Ahmed
name: Mouhafid, Abderrahim El
name: Daoud, Mohammed
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the relations between massless Dirac fermions in an electromagnetic field and atoms in quantum optics. After getting the solutions of the energy spectrum, we show that it is possible to reproduce the 2D Dirac Hamiltonian, with all its quantum relativistic effects, in a controllable system as a single trapped ion through the Jaynes--Cummings and anti-Jaynes--Cummings models. Also we show that under certain conditions the evolution of the Dirac Hamiltonian provides us with Rashba spin-orbit and linear Dresselhaus couplings. Considering the multimode multiphoton Jaynes-Cummings model interacting with N modes of electromagnetic field prepared in general pure quantum states, we analyze the Rabi oscillation. Evaluating time evolution of the Dirac position operator, we determine the Zitterbewegung frequency and the corresponding oscillating term as function of the electromagnetic field.
description: 15 pages, 3 tables, 1 figure, clarifications and references added, misprints corrected. Version published in JSTAT
The KMOS^3D Survey
Creators: name: Förster Schreiber, Natasha
Publisher: name: Zenodo
Year: 2019

description: I will present an overview of KMOS-3D, a 5-year survey completed in April 2018.  With a sample of over 700 targets at z=0.7-2.7 covering fairly homogeneously the bulk of the galaxy population, and probing into the starburst outliers and quiescent objects regimes, KMOS- 3D (1) provides a unique census of the spatially-resolved kinematics, star formation, outflows, excitation, and metallicity, consistently tracking the evolution over 5 Gyrs of cosmic history, (2) enables a reliable connection between these properties, stellar structure and populations, and environment.  I will discuss new insights from KMOS-3D on the physical mechanisms driving early galaxy growth, feedback, and quenching, and highlight prospects for the future.
Essays on household consumption and labor supply
Creators: name: Jutong, Pan
Publisher: name: University of British Columbia
Year: 2017

description: This dissertation studies how households adjust their consumption and labor supply in response to idiosyncratic shocks. In the first chapter, I propose an empirical strategy for measuring consumption allocations within households over time. The strategy consists of imputing gender-specific consumption data from a cross-sectional dataset to a panel. I apply it on two publicly available datasets in the US: the Consumer Expenditure Survey and the Panel Study of Income Dynamics. The generated panel allows researchers to investigate questions such as how the sharing rule shifts in response to various shocks. The second chapter studies how households insure themselves against idiosyncratic wage shocks and how this insurance interacts with intra-household bargaining. I set up an intertemporal household model and examine two channels of insurance, self-insurance and family labor supply adjustment. I consider two alternative specifications of this model: a unitary version in which I restrict sharing rules to be fixed within households, and a non-unitary one in which I allow sharing rules to change. I estimate the model using a panel that has information on consumption allocations within households. I find that intra-household allocations respond strongly to fluctuations in individual wages. Removing the restriction of fixed sharing rules does not reduce the extent of consumption smoothing within a household, but it significantly changes the relative importance of different channels. In particular, the relative contribution of family labor supply to household consumption smoothing decreases from roughly 60% in the unitary model to 30% in the non-unitary model. This is because the added worker effect -- the increase in spousal labor supply following an adverse shock to a partner -- is much milder in the non-unitary specification. Non-stationary income processes are standard in quantitative life-cycle models, prompted by the observation that within-cohort income inequality increases with age. The last chapter generalizes Tauchen's (1986) and Rouwenhorst's (1995) discretization methods to non-stationary AR(1) processes. We evaluate the performance of both methods in the context of a canonical finite-horizon, income-fluctuation problem with a non-stationary income process. We find that the generalized Rouwenhorst's method performs extremely well even with a small number of states.
Classification of general n-qubit states under stochastic local operations and classical communication in terms of the rank of coefficient matrix
Creators: name: Li, Xiangrong
name: Li, Dafa
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We solve the entanglement classification under stochastic local operations and classical communication (SLOCC) for general n-qubit states. For two arbitrary pure n-qubit states connected via local operations, we establish an equation between the two coefficient matrices associated with the states. The rank of the coefficient matrix is preserved under SLOCC and gives rise to a simple way of partitioning all the pure states of n qubits into different families of entanglement classes, as exemplified here. When applied to the symmetric states, this approach reveals that all the Dicke states |l,n> with l=1, ..., [n/2] are inequivalent under SLOCC.
Notes on the integration of numerical relativity waveforms
Creators: name: Reisswig, Christian
name: Pollney, Denis
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A primary goal of numerical relativity is to provide estimates of the wave strain, $h$, from strong gravitational wave sources, to be used in detector templates. The simulations, however, typically measure waves in terms of the Weyl curvature component, $ψ_4$. Assuming Bondi gauge, transforming to the strain $h$ reduces to integration of $ψ_4$ twice in time. Integrations performed in either the time or frequency domain, however, lead to secular non-linear drifts in the resulting strain $h$. These non-linear drifts are not explained by the two unknown integration constants which can at most result in linear drifts. We identify a number of fundamental difficulties which can arise from integrating finite length, discretely sampled and noisy data streams. These issues are an artifact of post-processing data. They are independent of the characteristics of the original simulation, such as gauge or numerical method used. We suggest, however, a simple procedure for integrating numerical waveforms in the frequency domain, which is effective at strongly reducing spurious secular non-linear drifts in the resulting strain.
description: 23 pages, 10 figures, matches final published version
Female partners of opioid-injecting men in the Republic of Georgia: an initial characterization
Creators: name: Lund, Ingunn O
name: Kirtadze, Irma
name: Otiashvili, David
name: O’Grady, Kevin E
name: Jones, Hendrée E
Publisher: name: Springer Nature
Year: 2012
Subjects: Opioid dependence
Intimate female partners
HIV
HCV
Physical violence

description: HIV and Hepatitis C virus (HCV) infections are strongly related to injection drug use in the Republic of Georgia. Little information is available about HIV and HCV status, sexual risk, support for their partner, and risk for physical violence among the female partners of opioid-injecting men in the Republic of Georgia, many of whom may not be using drugs, yet may be at high risk of being infected with HIV and HCV from their drug-using partners. In order to better understand the risks for females whose partners are injecting drugs, the present study conducted an initial investigation of the non-substance-using female partners of 40 opioid-injecting men who were participating in a clinical trial examining the feasibility and efficacy of a 22-week comprehensive intervention that paired behavioral treatment with naltrexone. The 40 female partners were assessed at their male partners’ study intake. The female sample was 32.3 years old (SD=6.7), 37 (93%) were married, with 15.5 years of education. A majority reported at least partial employment the majority of the time during the past 3 years, with only one woman reported being unemployed most of the time during the past 3 years. They self-reported they were 3% HIV-positive and 8% HCV-positive. Their HIV sex risk scores indicated a relatively low risk. However, only 4 (10%) women reported using a condom most of the time while having sex and 15 (38%) report not having had sex during the last 30 days. Experiences of interpersonal violence were common, with 42% reporting physical abuse by their partner during the last year and 48% reporting feeling unsafe in their current relationship. The alarmingly high rate of failure to use barrier protection methods, together with the high percentage who did not know their HIV and HCV status, suggest that it may be beneficial to include non-substance-using female partners in prevention programs along with their partners to reduce the risk of HIV and HCV spreading from the population of injection-drug–using males into the general population. [This secondary analysis study was funded by an international supplement to the parent randomized clinical trial “Treating the Partners of Drug Using Pregnant Women: Stage II (HOPE)”. ClinicalTrials.gov Identifier: NCT00496990.]
The modified Bessel K functions and the Fourier Transform of q-Gaussians
Creators: name: Sparavigna, Amelia Carolina
Publisher: name: Zenodo
Year: 2023
Subjects: q-Gaussian function

description: Here we show that the Fourier transform of the q-exponential Tsallis functions (also known as q-Gaussians) are generating time correlation functions based on the modified Bessel functions of the second kind. For the q parameter ranging from 2 to 1, we pass from a correlation which is an exponential decaying with time (Laplace distribution) to a Gaussian-like behavior.
The modified Bessel K functions and the Fourier Transform of q-Gaussians
Creators: name: Sparavigna, Amelia Carolina
Publisher: name: Zenodo
Year: 2023
Subjects: q-Gaussian function

description: Here we show that the Fourier transform of the q-exponential Tsallis functions (also known as q-Gaussians) are generating time correlation functions based on the modified Bessel functions of the second kind. For the q parameter ranging from 2 to 1, we pass from a correlation which is an exponential decaying with time to a Gaussian-like behavior.
Nonlinear clustering in models with primordial non-Gaussianity: the halo model approach
Creators: name: Smith, Robert E.
name: Desjacques, Vincent
name: Marian, Laura
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We develop the halo model of large-scale structure as an accurate tool for probing primordial non-Gaussianity. In this study we focus on understanding the matter clustering at several redshifts. The primordial non-Gaussianity is modeled as a quadratic correction to the local Gaussian potential, and is characterized by the parameter f_NL. In our formulation of the halo model we pay special attention to the effect of halo exclusion, and show that this can potentially solve the long standing problem of excess power on large scales in this model. The model depends on the mass function, clustering and density profiles of halos. We test these ingredients using a large ensemble of high-resolution Gaussian and non-Gaussian numerical simulations. In particular, we provide a first exploration of how density profiles change in the presence of primordial non-Gaussianities. We find that for f_NL positive/negative high mass halos have an increased/decreased core density, so being more/less concentrated than in the Gaussian case. We also examine the halo bias and show that, if the halo model is correct, then there is a small asymmetry in the scale-dependence of the bias on very large scales, which arises because the Gaussian bias must be renormalized. We show that the matter power spectrum is modified by ~2.5% and ~3.5% on scales k~1.0 h/Mpc at z=0 and z=1, respectively. Our halo model calculation reproduces the absolute amplitude to within 10% and the ratio of non-Gaussian to Gaussian spectra to within 1%. We also measure the matter correlation functions and find similarly good agreement between the model and the data. We anticipate that this modeling will be useful for constraining f_NL from measurements of the shear correlation function in future weak lensing surveys such as Euclid.
description: Replaced with version accepted for publication in PRD. Minor corrections: text clarified; references added. 25 pages, 13 figures
Māori data sovereignty: contributions to data cultures in the government sector in New Zealand
Creators: name: Lilley, Spencer
name: Oliver, G
name: Cranefield, Jocelyn
name: Lewellen, M
Publisher: name: Open Access Te Herenga Waka-Victoria University of Wellington
Year: 2024
Subjects: classificationCode: 4609
subject: Information systems
classificationCode: 4701
subject: Communication and media studies
classificationCode: 46
subject: Information and computing sciences
classificationCode: 47
subject: Language, communication and culture

description: Māori data sovereignty, an extension of Indigenous data sovereignty, is gaining recognition as a vital element of data-related strategy, management, policy, and culture in New Zealand. Driven by the principles of tino-rangatiratanga and Te Tiriti o Waitangi, Māori data sovereignty emphasizes Māori self-determination and control over their data. This article explores the significance of Māori data sovereignty within public and private sector organizations in New Zealand through interviews with data experts. The outcomes of this research highlight the importance of building relationships based on trust (whanaungatanga), asserting the right to self-determination (rangatiratanga), working collectively for the benefit of all (kotahitanga), and promoting learning and capacity building (akoranga) as key principles of Māori data sovereignty. While there is a growing recognition of Māori data sovereignty, power imbalances and the need for greater education and awareness persist. The study emphasizes the need for organizations to embrace a kaupapa Māori lens and tikanga Māori values to foster inclusive data cultures that uphold the rights and aspirations of Māori communities. Collaboration and further research are essential to advance Māori data sovereignty and integrate its principles into information policies and practices across sectors, thus promoting a data culture that respects Indigenous rights and collective well-being.
Quivers of sections on toric orbifolds
Creators: name: Abdelgadir, Tarig M. H.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: Starting from a collection of line bundles on a projective toric orbifold X, we introduce a stacky analogue of the classical linear series. Our first main result extends work of King by building moduli stacks of refined representations of labelled quivers. We associate one such stack to any collection of line bundles on X to obtain our notion of a stacky linear series; as in the classical case, X maps to the ambient stack by evaluating sections of line bundles in the collection. As a further application, we describe a finite sequence of GIT wall crossings between [A^n/G] and G-Hilb(A^n) for a finite abelian subgroup G of SL(n,k) where n is less than or equal to 3.
description: 24 pages; minor change to the title; final version
A simplicial gauge theory
Creators: name: Christiansen, Snorre Harald
name: Halvorsen, Tore Gunnar
Publisher: name: arXiv
Year: 2010
Subjects: subject: Numerical Analysis (math.NA)
subject: High Energy Physics - Lattice (hep-lat)
subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 65N30, 53B05

description: We provide an action for gauge theories discretized on simplicial meshes, inspired by finite element methods. The action is discretely gauge invariant and we give a proof of consistency. A discrete Noether's theorem that can be applied to our setting, is also proved.
description: 24 pages. v2: New version includes a longer introduction and a discrete Noether's theorem. v3: Section 4 on Noether's theorem has been expanded with Proposition 8, section 2 has been expanded with a paragraph on standard LGT. v4: Thorough revision with new introduction and more background material
Observation of the starburst galaxy M82 with SOFIA/FIFI-LS
Creators: name: Latzko, Serina
name: Fischer, Christian
name: Kaźmierczak-Barthel, Maja
name: Krabbe, Alfred
name: Vacca, William D.
Publisher: name: Zenodo
Year: 2019

description: The so called "Cigar Galaxy" M82 is a well-observed nearby starburst galaxy at 3.5 Mpc. Due to its proximity it is one of the closest laboratories to study massive starburst phenomena in detail. Radio observations revealed two Ultra Luminous X-Ray Sources (ULXs) near its center. Optical and near- infrared (NIR) observations focused on super star clusters in the core of M82 while the cool and warm molecular interstellar medium (ISM) was investigated using Infrared Space Observatory (ISO) observations in the mid-infrared (MIR) and far-infrared (FIR). We present new [CII] 157μm observations on the galactic wind emerging perpendicular to the disk of M82 at high velocities obtained with FIFI-LS onboard SOFIA using its spectral mapping capability. Our data also extend the investigation on the processes prevailing in the core of M82 by using spectral lines that were previously inaccessible, e.g., [OIII] 52μm, in particular at high angular resolution of about 6 arcsec.
Enhancing Research Data Annotation: The SEPIA Sample Database for Metadata Storage and Exchange
Creators: name: Krahl, Rolf
name: Sedeqi, Mojeeb Rahman
name: Rial, Katherine
Publisher: name: Zenodo
Year: 2024
Subjects: Sample Information
Sample PID
IGSN
Sample Database

description: The SEPIA project aims to improve the management and annotation of research data by providing a comprehensive sample database integrated with an open API. This initiative facilitates the capture and exchange of sample metadata, thereby enriching the research data collected at the Helmholtz-Zentrum Berlin (HZB). This presentation will explore the architecture and functionalities of the SEPIA project, highlighting its role in improving data accessibility and interoperability among researchers. We will discuss the potential impact of SEPIA on collaborative research efforts, data sharing practices, and the overall improvement of scientific research through better metadata management.
Transfer Accuracy of Two 3D Printed Trays for Indirect Bracket Bonding—An In Vitro Pilot Study
Creators: name: Jungbauer, Rebecca
name: Breunig, Jonas
name: Schmid, Alois
name: Hüfner, Mira
name: Kerberger, Robert
name: Rauch, Nicole
name: Proff, Peter
name: Drescher, Dieter
name: Becker, Kathrin
Publisher: name: Universität Regensburg
Year: 2021
Subjects: subject: bonding tray; 3D-printing; intraoral scanning; shore hardness
subject: 610 Medizin

description: The present study aimed to investigate the impact of hardness from 3D printed transfer trays and dental crowding on bracket bonding accuracy. Lower models (no crowding group: Little’s Irregularity Index (LII) < 3, crowding group: LII > 7, n = 10 per group) were selected at random, digitized, 3D printed, and utilized for semiautomated virtual positioning of brackets and tubes. Hard and soft transfer trays were fabricated with polyjet printing and digital light processing, respectively. Brackets and tubes were transferred to the 3D printed models and altogether digitized using intraoral scanning (IOS) and microcomputed tomography (micro-CT) for assessment of linear and angular deviations. Mean intra- and interrater reliability amounted to 0.67 ± 0.34/0.79 ± 0.16 for IOS, and 0.92 ± 0.05/0.92 ± 0.5 for the micro-CT measurements. Minor linear discrepancies were observed (median: 0.11 mm, Q1–Q3: −0.06–0.28 mm). Deviations in torque (median: 2.49°, Q1–Q3: 1.27–4.03°) were greater than angular ones (median: 1.81°, Q1–Q3: 1.05°–2.90°), higher for hard (median: 2.49°, Q1–Q3: 1.32–3.91°) compared to soft (median: 1.77°, Q1–Q3: 0.94–3.01°) trays (p < 0.001), and torque errors were more pronounced at crowded front teeth (p < 0.05). In conclusion, the clinician should carefully consider the potential impact of hardness and crowding on bracket transfer accuracy, specifically in torque and angular orientation.
Classification of self-dual codes of length 36
Creators: name: Harada, Masaaki
name: Munemasa, Akihiro
Publisher: name: arXiv
Year: 2010
Subjects: subject: Combinatorics (math.CO)
subject: Information Theory (cs.IT)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 94B05

description: A complete classification of binary self-dual codes of length 36 is given.
description: 10 pages, minor revision
Coral: an integrated suite of visualizations for comparing clusterings
Creators: name: Filippova, Darya
name: Gadani, Aashish
name: Kingsford, Carl
Publisher: name: Springer Nature
Year: 2012
Subjects: Cluster Algorithm
Data Item
Jaccard Similarity
Module Pair
Item Pair

description: Clustering has become a standard analysis for many types of biological data (e.g interaction networks, gene expression, metagenomic abundance). In practice, it is possible to obtain a large number of contradictory clusterings by varying which clustering algorithm is used, which data attributes are considered, how algorithmic parameters are set, and which near-optimal clusterings are chosen. It is a difficult task to sift though such a large collection of varied clusterings to determine which clustering features are affected by parameter settings or are artifacts of particular algorithms and which represent meaningful patterns. Knowing which items are often clustered together helps to improve our understanding of the underlying data and to increase our confidence about generated modules. We present Coral, an application for interactive exploration of large ensembles of clusterings. Coral makes all-to-all clustering comparison easy, supports exploration of individual clusterings, allows tracking modules across clusterings, and supports identification of core and peripheral items in modules. We discuss how each visual component in Coral tackles a specific question related to clustering comparison and provide examples of their use. We also show how Coral could be used to visually and quantitatively compare clusterings with a ground truth clustering. As a case study, we compare clusterings of a recently published protein interaction network of Arabidopsis thaliana. We use several popular algorithms to generate the network’s clusterings. We find that the clusterings vary significantly and that few proteins are consistently co-clustered in all clusterings. This is evidence that several clusterings should typically be considered when evaluating modules of genes, proteins, or sequences, and Coral can be used to perform a comprehensive analysis of these clustering ensembles.
Classification of joint quantum measurements based on entanglement cost of localization
Creators: name: Pauwels, Jef
name: Pozas-Kerstjens, Alejandro
name: Del Santo, Flavio
name: Gisin, Nicolas
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Despite their importance in quantum theory, joint quantum measurements remain poorly understood. An intriguing conceptual and practical question is whether joint quantum measurements on separated systems can be performed without bringing them together. Remarkably, by using shared entanglement, this can be achieved perfectly when disregarding the post-measurement state. However, existing localization protocols typically require unbounded entanglement. In this work, we address the fundamental question: "Which joint measurements can be localized with a finite amount of entanglement?" We develop finite-resource versions of teleportation-based schemes and analytically classify all two-qubit measurements that can be localized in the first steps of these hierarchies. These include several measurements with exceptional properties and symmetries, such as the Bell state measurement and the elegant joint measurement. This leads us to propose a systematic classification of joint measurements based on entanglement cost, which we argue directly connects to the complexity of implementing those measurements. We illustrate how to numerically explore higher levels and construct generalizations to higher dimensions and multipartite settings.
description: 11+9 pages, 3 figures, RevTeX 4.2. The computational appendix is available at https://www.github.com/apozas/localizable-measurements