cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Random incidence matrices: moments of the spectral density
Creators: name: Bauer, M.
name: Golinelli, O.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study numerically and analytically the spectrum of incidence matrices of random labeled graphs on N vertices : any pair of vertices is connected by an edge with probability p. We give two algorithms to compute the moments of the eigenvalue distribution as explicit polynomials in N and p. For large N and fixed p the spectrum contains a large eigenvalue at Np and a semi-circle of "small" eigenvalues. For large N and fixed average connectivity pN (dilute or sparse random matrices limit), we show that the spectrum always contains a discrete component. An anomaly in the spectrum near eigenvalue 0 for connectivity close to e=2.72... is observed. We develop recursion relations to compute the moments as explicit polynomials in pN. Their growth is slow enough so that they determine the spectrum. The extension of our methods to the Laplacian matrix is given in Appendix. Keywords: random graphs, random matrices, sparse matrices, incidence matrices spectrum, moments
description: 39 pages, 9 figures, Latex2e, [v2: ref. added, Sect. 4 modified]
MPEC 2024-G46 : 2023 HO4
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Low-energy electronic structure in Y1-xCaxBa2Cu3O7-y comparison of t ime-resolved optical spectroscopy, NMR, neutron and tunneling data
Creators: name: Demsar, J.
name: Zagar, K.
name: Kabanov, V. V.
name: Mihailovic, D.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Time-resolved optical measurements give information on the quasiparticle relaxation dynamics in YBCO, from which the evolution of the gap with doping and temperature can be systematically deduced. In this paper these optical charge-channel `pseudogap' data are compared with the `pseudogap' obtained from the NMR Knight shift Ks, spin polarized neutron scattering (SPNS) and single particle tunneling measurements. A simple energy level diagram is proposed to explain the different `gap' magnitudes observed by different spectroscopies in Y1-xCaxBa2Cu3O7-y, whereby the spin gap Delta_s in NMR and SPNS corresponds to a triplet local pair state, while Delta_p in the charge excitation spectrum corresponds to the pair dissociation energy. At optimum doping and in the overdoped state, an additional T-dependent gap becomes evident, which closes at T_c, suggesting a cross-over to a more conventional BCS-like superconductivity scenario.
description: 9 pages, 4 figures. Presented in HTS99, Miami, January 99
title: A European perspective on the development for hydrogen powered buses for urban transportation in cities
Creators: name: Rangwala, Al Azhar Faiyaz
Publisher: name: TU Wien
Year: 2021
Subjects: subject: Hydrogen buses case studies for Europe
subject: H2 production via electrolysis
subject: Economic study for hydrogen fuel
subject: Hydrogen storage
subject: Life cycle assessment for hydrogen

description: Using common mode of transport is a key success factor for future generations to rationalise intercity travel and fuel consumption, and moving to sustainable solutions is in our great interest. The objective of this research is to understand the the acceptance of fuel cell (FC) buses in Europe, by addressing on 3 key objectives; (i) methods of integration of renewables in various power systems (ii) the replacement of fossil fuels with hydrogen (H2) fueled vehicles in the inter-city bus transport sector, and (iii) the discussion on implementing H2 buses in European cities, and the associated advantages to do so.Secondary research is carried out in this paper, with a focus on technology, economic and ecological literature that support to further understand the various elements related to this alternative source. Several case studies have been carried out in Europe to find various results on the testing and implementation of FC buses in cities. These buses are usually focused on public transport, however the similar findings could be extended to tourist run buses in cities as well. Various results are highlighted, for instance; public acceptance results, bus driver surveys, cost of implementation of additional infrastructure to make FC vehicles economically at par with diesel vehicles, reductions in greenhouse gas (GHG) emissions to name a few. The case studies presented act as a key parameter for evaluation to assess the combined result for this research.Buses contribute to a large amount of travel covered annually around Europe, which is the target for the scope of this research. Like every technology, the time to have supporting infrastructure and policies will greatly affect the economic benefits for relevant technologies. However, from an ecological perspective it is clear to move to greener solutions. Several cities in Europe have already deployed various projects for FC buses which have varying findings that help stakeholders across the world to understand the benefits and limitations of such technologies.
Analytic Expression for Magnetic Activation Energy
Creators: name: Miura, Daisuke
name: Sakuma, Akimasa
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We theoretically investigate the magnetic activation energy of permanent magnets. Practically, it is widely used in a phenomenological form as $\mathcal{F}_\mathrm{B}(H_\mathrm{ext})=\mathcal{F}_\mathrm{B}^0\left(1-H_\mathrm{ext}/H_0\right)^n,$ where $\mathcal{F}_\mathrm{B}^0$ is the activation energy in the absence of an external magnetic field $H_\mathrm{ext}$, $n$ is a real parameter, and $H_0$ is defined by the equation $\mathcal{F}_\mathrm{B}(H_0)=0$. We derive the general and direct expressions for these phenomenological parameters under the restriction of uniform rotation of magnetization and on the basis of the perturbative theory with respect to $H_\mathrm{ext}$. Further,we apply our results to Nd$_2$Fe$_{14}$B magnets and confirm the validity of the proposed method by comparing with the Monte Carlo calculations.
description: 8 pages, 2 figures
Dimensional crossover in dipolar magnetic layers
Creators: name: Bulenda, Michael
name: T"auber, Uwe C.
name: Schwabl, Franz
Publisher: name: arXiv
Year: 1999
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate the static critical behaviour of a uniaxial magnetic layer, with finite thickness L in one direction, yet infinitely extended in the remaining d dimensions. The magnetic dipole-dipole interaction is taken into account. We apply a variant of Wilson's momentum shell renormalisation group approach to describe the crossover between the critical behaviour of the 3-D Ising, 2-d Ising, 3-D uniaxial dipolar, and the 2-d uniaxial dipolar universality classes. The corresponding renormalisation group fixed points are in addition to different effective dimensionalities characterised by distinct analytic structures of the propagator, and are consequently associated with varying upper critical dimensions. While the limiting cases can be discussed by means of dimensional epsilon expansions with respect to the appropriate upper critical dimensions, respectively, the crossover features must be addressed in terms of the renormalisation group flow trajectories at fixed dimensionality d.
description: 25 pages, Latex, 12 figures (.eps files) and IOP style files included
A new sesquiterpenoid glycoside from Saussurea involucrata
Creators: name: Shizhou Qi
name: Yiren Yang
name: Xiaoyan Xian
name: Xianzhe Li
name: Huiyuan Gao
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Inorganic Chemistry

description: Saussurea involucrata, known for the abundant bioactive components, is a precious traditional Chinese medicine. In this study, a novel guaiane sesquiterpenoid glycoside named (1R, 5R, 6R, 7R, 8S, 11S)-11, 13-dihydrodehydrocostuslactone-8-O-6'-2''(E)-butenoyl-β-D-glucopyranoside (1), together with seven known compounds (2–8) were isolated from the dried aerial part of S. involucrata. Their structures were elucidated by spectroscopic and physico-chemical analyses. The antioxidant and anti-inflammatory activities of compound 1 were investigated. And compound 1 showed weak radical scavenging activity and low inhibitory activity on nitric oxide (NO) production.
Chemically Accurate 0-0 Energies with not-so-Accurate Excited State Geometries
Creators: name: Loos, Pierre-François
name: Jacquemin, Denis
Publisher: name: arXiv
Year: 2018
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Using a series of increasingly refined wavefunction methods able to tackle electronic excited states, namely ADC(2), CC2, CCSD, CCSDR(3) and CC3, we investigate the interplay between geometries and 0-0 energies. We show that, due to a strong and nearly systematic error cancelation between the vertical transition and geometrical reorganization energies, CC2 and CCSD structures can be used to obtain chemically-accurate 0-0 energies, though the underlying geometries are rather far from the reference ones and would deliver significant errors for many chemical and physical properties. This indicates that obtaining 0-0 energies matching experiment does not demonstrate the quality of the geometrical parameters. In contrast, accurate computation of vertical excitation energies is mandatory in order to reach chemical accuracy. By determining CC3 total energies on CCSD structures, we model a large set of compounds (including radicals) and electronic transitions (including singlet-triplet excitations) and successfully reach chemical accuracy in a near systematic way. Indeed, for this particular set, our protocol delivers a mean absolute error as small as $0.032$ eV, chemical accuracy (error smaller than $1$ kcal.mol$^{-1}$ or $0.043$ eV) being obtained in 80\%\ of the cases. In only three cases the error exceeds $0.15$ eV which is of the order of the typical error provided by TD-DFT or second-order wavefunction methods for this particular property. The present composite protocol is therefore very effective despite the fact that the geometries may not be considered as very accurate.
description: 11 pages, 5 figures
Complete Order alpha_s^3 Results for e^+ e^- to (gamma,Z) to Four Jets
Creators: name: Dixon, L.
name: Signer, A.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the next-to-leading order (O(alpha_s^3)) perturbative QCD predictions for e^+e^- annihilation into four jets. A previous calculation omitted the O(alpha_s^3) terms suppressed by one or more powers of 1/N_c^2, where N_c is the number of colors, and the `light-by-glue scattering' contributions. We find that all such terms are uniformly small, constituting less than 10% of the correction. For the Durham clustering algorithm, the leading and next-to-leading logarithms in the limit of small jet resolution parameter y_{cut} can be resummed. We match the resummed results to our fixed-order calculation in order to improve the small y_{cut} prediction.
description: Latex2e, 17 pages with 5 encapsulated figures. Note added regarding subsequent related work. To appear in Phys. Rev. D
Properties and magnetic origins of solar S-bursts
Creators: name: Clarke, Brendan P.
name: Morosan, Diana E.
name: Gallagher, Peter T.
name: Dorovskyy, Vladimir V.
name: Konovalenko, Alexander A.
name: Carley, Eoin P.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. Solar activity is often accompanied by solar radio emission, consisting of numerous types of solar radio bursts. At low frequencies (<100 MHz) radio bursts with short durations of milliseconds, such as solar S-bursts, have been identified. To date, their origin and many of their characteristics remain unclear. Aims. We report observations from the Ukrainian T-shaped Radio telescope, (UTR-2), and the LOw Frequency ARray (LOFAR) which give us new insight into their nature. Methods. Over 3000 S-bursts were observed on 9 July 2013 at frequencies of 17.4-83.1 MHz during a period of low solar activity. Leading models of S-burst generation were tested by analysing the spectral properties of S-bursts and estimating coronal magnetic field strengths. Results. S-bursts were found to have short durations of 0.5-0.9 s. Multiple instruments were used to measure the dependence of drift rate on frequency which is represented by a power law with an index of 1.57. For the first time, we show a linear relation between instantaneous bandwidth and frequency over a wide frequency band. The flux calibration and high sensitivity of UTR-2 enabled measurements of their fluxes, which yielded 11+3 SFU. The source particle velocities of S-bursts were found to be ~0.07 c. S-burst source heights were found to range from 1.3 R_Sun to 2 R_Sun. Furthermore, a contemporary theoretical model of S-burst generation was used to conduct remote sensing of the coronal magnetic field at these heights which yielded values of 0.9-5.8 G. Within error, these values are comparable to those predicted by various relations between magnetic field strength and height in the corona.
description: Added acknowledgement to the Solar team from the Institute of Radio Astronomy of the National Academy of Sciences of Ukraine
Kinetics of ammonium and nitrite removal by nitrifying biomass adapted to landfill leachate
Creators: name: Torres-Herrera, Sandra
name: Palomares-Cortés, Joaquín Jesús
name: González-Cortés, José Joaquín
name: Ramírez, Martín
name: Cantero, Domingo
Publisher: name: Zenodo
Year: 2022

description: Poster presented by partners from the University of Cádiz during the XV Annual Congress of Biotechnology (BAC) celebrated from 13th – 15th of July, 2022,  in the Polytechnic University of Valencia (Spain).
BMS Characters and Modular Invariance
Creators: name: Bagchi, Arjun
name: Saha, Amartya
name: Zodinmawia
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct the characters for the highest weight representations of the 3d Bondi-Metzner-Sachs (BMS$_3$) algebra. We then use these to construct the partition function and show how to use BMS modular transformations to obtain a density of primary states. The entropy thus obtained accounts for the principle part of the entropy obtained from the BMS-Cardy formula. This suggests that BMS primaries capture most of the entropy of Flat Space Cosmologies, which are the flatspace analogues of BTZ black holes in AdS$_3$. We reproduce our character formula by looking at singular limits from 2d CFT characters and find that our answers are identical to the characters obtained for the very different induced representations. We offer an algebraic explanation to this arising from a (to the best of our knowledge) novel automorphism in the parent 2d CFT.
description: 39 pages, 2 figures, ordering of the sections changed, figure 1 changed, references added, footnotes added, typos corrected. Matched published version
Scattering of Dirac fermions by spherical massive bodies
Creators: name: Cotaescu, Ion I.
name: Sporea, Ciprian A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The asymptotic form of Dirac spinors in the field of a Schwarzschild black hole is used for deriving analytically for the first time the phase shifts of the partial wave analysis of Dirac fermions scattered from massive spherical bodies, imagined as black holes surrounded by a surface producing total reflection. A simple model is analyzed by using graphical methods.
description: v2: matches the published version in EPJC; 8 pages two-column, 3 figures; this work is connected to arXiv:1409.7201
Normative data and validation of the Italian translation of the Working Memory Questionnaire (WMQ)
Creators: name: Guariglia, Paola
name: Giaimo, Flavio
name: Palmiero, Massimiliano
name: Piccardi, Laura
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Neuroscience
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Reliable and valid measures are necessary to assess subjective working memory complaints that can be distinct from objective memory performance. The Working Memory Questionnaire (WMQ) is a self-administered scale proposed by Vallat-Azouvi. It assesses the three different working memory domains (memory storage, attention, and executive functions) in accordance with Baddeley’s working memory model. Our aim was to propose an Italian translation of the WMQ and provide normative data. We collected normative data from 697 healthy Italian participants aged between 18 and 88 years. Percentiles and cutoff scores, taking into consideration age, gender, and education, were provided for the WMQ total scores and the three separate domains. The performance on the WMQ was influenced by age and education. In particular, age and education affected self-perceived working memory efficacy. Our data demonstrate a significant correlation between the WMQ and paper-and-pencil tests assessing working memory, attention, and executive functions. This study provides normative data that have been adjusted for relevant demographics and percentile grids in an Italian population. The results are in line with a previous French study that also supported the use of the WMQ as a valid prescreening instrument for working memory deficits in clinical practice.
A very low temperature STM for the local spectroscopy of mesoscopic structures
Creators: name: Moussy, N.
name: Courtois, H.
name: Pannetier, B.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present the design and operation of a very-low temperature Scanning Tunneling Microscope (STM) working at $60 mK$ in a dilution refrigerator. The STM features both atomic resolution and micron-sized scanning range at low temperature. This work is the first experimental realization of a local spectroscopy of mesoscopic structures at very low temperature. We present high-resolution current-voltage characteristics of tunnel contacts and the deduced local density of states of hybrid Superconductor-Normal metal systems.
description: 5 pages, 5 figures, slightly corrected version
Excitations in Spin Chains and Specific-Heat Anomalies in Yb(4)As(3)
Creators: name: Schmidt, Burkhard
name: Thalmeier, Peter
name: Fulde, Peter
Publisher: name: arXiv
Year: 1996
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: An explanation is given for the observed magnetic-field dependence of the low-temperature specific heat coefficient of Yb(4)As(3). It is based on a recently developed model for that material which can explain the observed heavy-fermion behaviour. According to it the Yb(3+)-ions are positioned in a net of parallel chains with an effective spin coupling of the order of J = 25 K. The magnetic-field dependence can be understood by including a weak magnetic coupling J' between adjacent chains. The data require a ratio J'/J of about 10^{-4}. In that case the experimental results can be reproduced very well by the theory.
description: 5 pages, 5 PostScript-figures, needs LaTeX2e and the graphics-package
The Time-Domain Spectroscopic Survey: Radial Velocity Variability in Dwarf Carbon Stars
Creators: name: Roulston, Benjamin R.
name: Green, Paul J.
name: Ruan, John J.
name: MacLeod, Chelsea L.
name: Anderson, Scott F.
name: Badenes, Carles
name: Brownstein, Joel R.
name: Schneider, Donald P.
name: Stassun, Keivan G.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Dwarf carbon (dC) stars, main sequence stars showing carbon molecular bands, were initially thought to be an oxymoron since only AGB stars dredge carbon into their atmospheres. Mass transfer from a former AGB companion that has since faded to a white dwarf seems the most likely explanation. Indeed, a few types of giants known to show anomalous abundances --- notably, the CH, Ba and CEMP-s stars --- are known to have a high binary frequency. The dC stars may be the enhanced-abundance progenitors of most, if not all, of these systems, but this requires demonstrating a high binary frequency for dCs. Here, for a sample of 240 dC stars targeted for repeat spectroscopy by the SDSS-IV's Time Domain Spectroscopic Survey, we analyze radial velocity variability to constrain the binary frequency and orbital properties. A handful of dC systems show large velocity variability ($>$100 km s$^{-1}$). We compare the dCs to a control sample with a similar distribution of magnitude, color, proper motion, and parallax. Using MCMC methods, we use the measured $Δ$RV distribution to estimate the binary fraction and the separation distribution assuming both a unimodal and bimodal distribution. We find the dC stars have an enhanced binary fraction of 95\%, consistent with them being products of mass transfer. These models result in mean separations of less than 1 AU corresponding to periods on the order of 1 year. Our results support the conclusion that dC stars form from close binary systems via mass transfer.
description: 13 pages, 11 figures. Accepted to ApJ April 15, 2019
Two-photon exclusive decays $B_s \to η(η') γγ$ and $B \to K γγ$
Creators: name: Singer, Paul
name: Zhang, Da-Xin
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The exclusive decay modes $B \to K γγ$ and $B_s \to η(η') γγ$ are shown to have significant branching ratios of approximately $0.5\times 10^{-7}$. This first calculation of these modes employs a model based on a cascade transition $B\to Vγ\to Pγγ$ for estimating the long-distance contribution and the process $b\to sγγ$ for the short distance one.
description: 11 Pages
Relationship between incommensurability and superconductivity in Peierls distorted charge-density-wave systems
Creators: name: Seibold, G.
name: Varlamov, S.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study the pairing potential induced by fluctuations around a charge-density wave (CDW) with scattering vector Q by means of the Froehlich transformation. For general commensurability M, defined as |k+M*Q>=|k>, we find that the intraband pair scattering within the M subbands scales with M whereas the interband pair scattering becomes suppressed with increasing CDW order parameter. As a consequence superconductivity is suppressed when the Fermi energy is located between the subbands as it is usually the case for nesting induced CDW's, but due to the vertex renormalization it can be substantially enhanced when the chemical potential is shifted sufficiently inside one of the subbands. The model can help to understand the experimentally observed dependence of the superconducting transition temperature from the stripe phase incommensurability in the lanthanum cuprates.
description: 6 pages, 3 figures
Structural, theoretical, and third-order nonlinear optical investigations of N’-[(E)-(4-bromophenyl)(phenyl)methylidene]–4-methylbenzenesulfonohydrazide
Creators: name: S. Rafi Ahamed
name: P. Srinivasan
name: J. Balaji
name: C. Balakrishnan
name: G. Vinitha
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Plant Biology
subject: FOS: Biological sciences
subject: Computational Biology

description: Single crystals of N’-[(E)-(4-bromophenyl) (phenyl) methylidene]–4-methylbenzenesulfonohydrazide (4BBTH), having potential applications in nonlinear electro optic field. The structure is elucidated by single crystal X-ray diffraction analysis. The functional groups are identified by FT-IR analysis. The band gap energy is estimated using diffuse reflectance data by the application of Kubelka–Munk algorithm. Third-order nonlinear optical properties of the grown crystal were derived by employing a single beam Z-scan technique. Theoretical calculations were performed using density functional theory (DFT) method. Estimated large first-order molecular hyperpolarizality of 9.79 times of urea, suggests a charge transfer atmosphere facilitating micro level nonlinearity.GRAPHICAL ABSTRACT
Making disability white: Blackness and white disability from Hollywood to academia
Creators: name: Orsak, Sarah Lynn
Publisher: name: No Publisher Supplied
Year: 2022

description: Disability scholars have increasingly worked to imagine the field beyond its historic focus on white subjects. This dissertation investigates how such interventions came to be necessary, how disability came to be white. I contextualize the whiteness of US disability studies as it emerges from the whiteness of disability as a category in the US. I argue that disability as a category comes to overwhelmingly describe white subjects by both excluding and relying on blackness. I specifically foreground how racist ideas of Black womanhood structure dominant ideas of disability. Disability, then, is not an exceptional or emerging identity. Rather, disability operates as part of US anti-blackness as white subjects define themselves through blackness as a fungible site of meaning. I use Black feminist frameworks and Black women’s literature as theoretical touchstones to detail disability’s dependence on blackness from American post-WWII ‘problem films,’ to rhetoric used by the disability rights movement, through to disability analytics. The first half of the project investigates how disability in the US became a category of whiteness. Chapter one argues that the erasure of Black people’s disabilities subtends white disability prior to the emergence of the disability rights movement. I analyze how the 1949 film Home of the Brave sets up blackness and disability as mutually exclusive against the backdrop of the Pacific War. The second chapter argues that able-bodiedness and normalcy are also racialized and gendered categories. Able-bodiedness is denied Black women like Caster Semenya and the protagonist of Thylias Moss’ neo-slave narrative-in-verse Slave Moth (2004). These women’s abilities are rendered abnormal to justify their medical exploitation and to uphold disability as a white category. The second half of the dissertation investigates how disability’s conceptual reliance on blackness inflects US disability scholarship, particularly scholars’ focus on identity and representation. The third chapter investigates how critiques of disability metaphor, cripping up, and narrative prosthesis mobilize disability’s categorical reliance on blackness to delineate between symbolic references to disability and real, white, disabled subjects. The final chapter investigates more recent attempts to remedy the whiteness of disability by expanding the scholarly scope of disability to include chronic illness. I use Bettina Judd’s poetry collection Patient. (2014) to trouble this turn, revealing how such scholarship often falls into the trap of producing white disability by exploiting Black women as sites of meaning for disability. The dissertation concludes with a coda that proposes a renewed focus on scholarly practices and methods, rather than disabled subjects as objects of analysis. Robin Coste Lewis’ long poem, “Voyage of the Sable Venus” (2015) suggests how such a caring methodological approach to injured Black women might be taken up by disability scholars.
Intensity Fluctuations in Closed and Open Systems
Creators: name: Pnini, R.
name: Shapiro, B.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We consider the intensity pattern, generated by a monochromatic source, in a disordered cavity coupled to the environment. For weak coupling, and when the source frequency is tuned to a resonance, the intensity distribution is close to Porter-Thomas distribution. When the coupling increases, gradually crosses over to the Rayleigh distribution. The joint probability distribution for intensities at two different points is also discussed.
description: 11 pages, LATEX, no figures
ГИЁВАНДЛИК ВОСИТАЛАРИ, УЛАРНИНГ АНАЛОГЛАРИ ЁКИ ПСИХОТРОП МОДДАЛАРНИ НОҚОНУНИЙ АЙЛАНМАСИ БИЛАН БОҒЛИҚ ЖИНОЯТЛАРНИНГ САБАБЛАРИ ВА УЛАРНИ СОДИР ЭТИШГА ИМКОН БЕРГАН  ШАРТ-ШАРОИТЛАР
Creators: name: Абдуразаков, Абдувосит
Publisher: name: Zenodo
Year: 2024

description: Мазкур мақолада гиёвандлик воситалари, уларнинг аналоглари ёки психотроп моддаларни ноқонуний айланмаси билан боғлиқ жиноятларнинг сабаблари ва уларни содир этишга имкон берган  шарт-шароитларга доир масалалар таҳлил этилган.
Fixation in Fluctuating Populations
Creators: name: Bhat, Deepak
name: Piñero, Jordi
name: Redner, S.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We investigate the dynamics of the voter model in which the population itself changes endogenously via the birth-death process. There are two species of voters, labeled A and B, and the population of each species can grow or shrink by the birth-death process at equal rates $b$. Individuals of opposite species also undergo voter model dynamics in which an AB pair can equiprobably become AA or BB with rate $v$---neutral evolution. In the limit $b/v\to\infty$, the distribution of consensus times varies as $t^{-3}$ and the probability that the population size equals $n$ at the moment of consensus varies as $n^{-3}$. As the birth/death rate $b$ is increased, fixation occurs more more quickly; that is, population fluctuations promote consensus.
description: 15 pages, 6 figures, IOP format. Version 2: minor changes in response to referee comments. For publication in JSTAT. Version 3: Various minor errors fixed
Noisy random resistor networks: renormalized field theory for the multifractal moments of the current distribution
Creators: name: Stenull, Olaf
name: Janssen, Hans-Karl
Publisher: name: arXiv
Year: 2000
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the multifractal moments of the current distribution in randomly diluted resistor networks near the percolation treshold. When an external current is applied between to terminals $x$ and $x^\prime$ of the network, the $l$th multifractal moment scales as $M_I^{(l)} (x, x^\prime) \sim | x - x^\prime |^{ψ_l /ν}$, where $ν$ is the correlation length exponent of the isotropic percolation universality class. By applying our concept of master operators [Europhys. Lett. {\bf 51}, 539 (2000)] we calculate the family of multifractal exponents $\{ψ_l \}$ for $l \geq 0$ to two-loop order. We find that our result is in good agreement with numerical data for three dimensions.
description: 30 pages, 6 figures
Synthesis, structural characterization, Hirshfeld surface analysis, and theoretical investigations of bis(benzene-1,2-dicarboxylato)bis(4-methylbenzohydrazide)zinc
Creators: name: C. Balakrishnan
name: M. Manonmani
name: S. P. Meenakshisundaram
name: R. M. Sockalingam
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: Single crystals of bis(benzene-1,2-dicarboxylato)bis(4-methylbenzohydrazide)zinc (ZPTH), a novel Zn(II) complex of phthalic acid and hydrazide, were grown from aqueous solution by slow evaporation solution growth technique. The compound C32H30N4O10Zn crystallizes in triclinic system with centrosymmetric space group Pī. Its structure is built up from octahedral (ZnO4N2) linked to each other through the phthalate and hydrazide groups. The good crystallinity of the as-grown specimen is confirmed by the powder X-ray diffraction pattern. The band gap energy is estimated using diffuse reflectance data by the application of Kubelka–Munk algorithm. ZPTH exhibits fluorescent emission at 401 nm in the solid state at room temperature. Theoretical calculations were performed using density functional theory (DFT) method. Experimental observations are well supported by theoretical studies.GRAPHICAL ABSTRACT
Twist-2 Pseudoscalar and Vector Meson Distribution Amplitudes in Light-Front Quark Model with Exponential-type Confining Potential
Creators: name: Dhiman, Nisha
name: Dahiya, Harleen
name: Ji, Chueng-Ryong
name: Choi, Ho-Meoyng
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the twist-2 distribution amplitudes (DAs) and the decay constants of pseudoscalar light ($π$, $K$) and heavy ($D$, $D_s$, $B$, $B_s$) mesons as well as the longitudinally and transversely polarized vector light ($ρ$, $K^*$) and heavy ($D^*$, $D_s^*$, $B^*$, $B_s^*$) mesons in the light-front quark model with the Coulomb plus exponential-type confining potential $V_{\rm {exp}} = a + b e^{αr}$ in addition to the hyperfine interaction. We first compute the mass spectra of ground state pseudoscalar and vector light and heavy mesons and fix the model parameters necessary for the analysis, applying the variational principle with the trial wave function up to the first three lowest order harmonic oscillator (HO) wave functions $Φ(x, \textbf{k}_\bot) = \sum_{n=1}^{3} c_n ϕ_{nS}$. We then obtain the numerical results for the corresponding decay constants of light and heavy mesons. We estimate the DAs, analyze their variation as a function of momentum fraction and compute the first six $ξ$-moments of the $B$ and $D$ mesons as well. We compare our results with the available experimental data as well as with the other theoretical model predictions.
description: 32 pages, 9 figures
Hidden kagome-lattice picture and origin of high conductivity in delafossite PtCoO$_2$
Creators: name: Usui, Hidetomo
name: Ochi, Masayuki
name: Kitamura, Sota
name: Oka, Takashi
name: Ogura, Daisuke
name: Rosner, Helge
name: Haverkort, Maurits W.
name: Sunko, Veronika
name: King, Philip D. C.
name: Mackenzie, Andrew P.
name: Kuroki, Kazuhiko
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study the electronic structure of delafossite PtCoO$_2$ to elucidate its extremely small resistivity and high mobility. The band exhibits steep dispersion near the Fermi level despite the fact that it is formed mainly by Pt $d$ orbitals that are typically localized. We propose a picture based on two hidden kagome-lattice-like electronic structure: one originating from Pt $s+p_x/p_y$ orbitals, and the other from Pt $d_{3z^2-r^2}+d_{xy}/d_{x^2-y^2}$ orbitals, each placed on the bonds of the triangular lattice. In particular, we find that the underlying Pt $s+p_x/p_y$ bands actually determine the steepness of the original dispersion, so that the large Fermi velocity can be attributed to the large width of the Pt $s+p_x/p_y$ band. More importantly, the kagome-like electronic structure gives rise to "orbital-momentum locking" on the Fermi surface, which reduces the electron scattering by impurities. We conclude that the combination of the large Fermi velocity and the orbital-momentum locking is likely to be the origin of the extremely small resistivity in PtCoO$_2$.
description: 9 pages, 14 figures
Implications of baryon asymmetry for the electric dipole moment of the neutron
Creators: name: Aoki, Mayumi
name: Sugamoto, Akio
name: Oshimo, Noriyuki
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study baryogenesis at the electroweak phase transition of the universe within the framework of the supersymmetric standard model (SSM) based on N=1 supergravity. This model contains a new source of CP violation in the mass-squared matrices for squarks, which could enable $t$ squarks to mediate the charge transport mechanism for generating baryon asymmetry. The same CP-violating source also induces the electric dipole moment (EDM) of the neutron at the one-loop level. If the new CP-violating phase is not suppressed, it is shown, the $t$-squark transport can lead to baryon asymmetry consistent with its observed value within reasonable ranges of SSM parameters. For these parameter ranges the magnitude of the neutron EDM is predicted to be not much smaller than its present experimental upper bound.
description: 9 pages, 2 Postscript figures
A density functional study of lithium bulk and surfaces
Creators: name: Doll, K.
name: Harrison, N. M.
name: Saunders, V. R.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report the bulk and surface properties of lithium computed within a full potential LCGTO formalism using both density functional theory and the Hartree-Fock approximation. We examine the convergence of computed properties with respect to numerical approximations and also explore the use of finite temperature density functional theory. We demonstrate that fully converged calculations reproduce cohesive properties, elastic constants, band structure, and surface energies in full agreement with experimental data and, where available, previous calculations.
description: to appear in J. Phys.: Condensed Matter
Distribution Function Analysis of Mesoscopic Hopping Conductance Fluctuations
Creators: name: Hughes, R. J. F.
name: Savchenko, A. K.
name: Frost, J. E. F.
name: Linfield, E. H.
name: Nicholls, J. T.
name: Pepper, M.
name: Kogan, E.
name: Kaveh, M.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: Variable-range hopping (VRH) conductance fluctuations in the gate-voltage characteristics of mesoscopic GaAs and Si transistors are analyzed by means of their full distribution functions (DFs). The forms of the DF predicted by the theory of Raikh and Ruzin have been verified under controlled conditions for both the long, narrow wire and the short, wide channel geometries. The variation of the mean square fluctuation size with temperature in wires fabricated from both materials is found to be described quantitatively by Lee's model of VRH along a 1D chain. Armed with this quantitative validation of the VRH model, the DF method is applied to the problem of magnetoconductance in the insulating regime. Here a non-monotonic variation of the magnetoconductance is observed in Si MOSFETS whose sign at low magnetic fields is dependent on the channel geometry. The origin of this defect is discussed within the framework of the interference model of VRH magnetoconductance in terms of narrowing of the DF in a magnetic field.
description: Revtex, 24 pages, 9 figures, figures are added
Search for Exclusive Rare Baryonic Decays of $B$ Mesons
Creators: name: Coan, T. E.
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report the results of a search for the rare baryonic decay modes B -> Lambda Lambdabar, B -> Lambdabar p, B -> Lambdabar p pi, and B -> p pbar using 5.8M BBbar pairs collected with the CLEO detector. We see no statistically significant signals in any of these modes and set 90% confidence level upper limits on their branching fractions, B(B -> Lambda Lambdabar) < 3.9 \times 10^{-6}, B(B -> Lambdabar p) < 2.6 \times 10^{-6}, B(B -> Lambdabar p pi) < 1.3 \times 10^{-5}, and B(B -> p pbar) < 7.0 \times 10^{-6}.
description: 10 pages, postscript file also available through http://w4.lns.cornell.edu/public/CLNS
A Convex Optimization-based Dynamic Model Identification Package for the da Vinci Research Kit
Creators: name: Wang, Yan
name: Gondokaryono, Radian
name: Munawar, Adnan
name: Fischer, Gregory S.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: The da Vinci Research Kit (dVRK) is a teleoperated surgical robotic system. For dynamic simulations and model-based control, the dynamic model of the dVRK is required. We present an open-source dynamic model identification package for the dVRK, capable of modeling the parallelograms, springs, counterweight, and tendon couplings, which are inherent to the dVRK. A convex optimization-based method is used to identify the dynamic parameters of the dVRK subject to physical consistency. Experimental results show the effectiveness of the modeling and the robustness of the package. Although this software package is originally developed for the dVRK, it is feasible to apply it on other similar robots.
description: 8 pages, in IEEE Robotics and Automation Letters., 2019
A Scenario for Contact Interactions at HERA
Creators: name: Caravaglios, F.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The four fermion contact interactions, required to explain the anomalous HERA result, could come from the exchange of new heavy (probably composite) resonances. Depending on their charges and quantum numbers, one gets different scenarios and finds that many of these configurations are unsuitable. For example, new neutral resonances seems to be disfavored by the data coming from the TEVATRON, LEP 2 and atomic parity violation. These experiments allow only few helicity combinations that cannot arise from neutral currents in a natural way. On the contrary, a global large symmetry SU(8) * SU(8) (which is contained in SU(16)) embeds some lepto-quarks of spin 1 that could give suitable four fermion interactions (compatible with all other experiments) if these resonances are the lightest new (probably composite) states with a mass comparable to the scale of the contact interactions.
description: 8 pages, LaTeX, no figure
Rotational cooling of molecules in a Bose-Einstein-Condensate
Creators: name: Will, Martin
name: Lausch, Tobias
name: Fleischhauer, Michael
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We discuss the rotational cooling of diatomic molecules in a Bose-Einstein condensate (BEC) of ultra-cold atoms by emission of phonons with orbital angular momentum. Despite the superfluidity of the BEC there is no frictionless rotation for typical molecules since the dominant cooling occurs via emission of particle-like phonons. Only for macro-dimers, whose size becomes comparable or larger than the condensate healing length, a Landau-like, critical angular momentum exists below which phonon emission is suppressed. We find that the rotational relaxation of typical molecules is in general faster than the cooling of the linear motion of impurities in a BEC. This also leads to a finite lifetime of angulons, quasi-particles of rotating molecules coupled to phonons with orbital angular-momentum. We analyze the dynamics of rotational cooling for homo-nuclear diatomic molecules based on a quantum Boltzmann equation including single- and two-phonon scattering and discuss the effect of thermal phonons.
description: 9 pages, 6 figures
One-loop neutrino mass model with $SU(2)_L$ multiplet fields
Creators: name: Nomura, Takaaki
name: Okada, Hiroshi
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a one-loop neutrino mass model with several $SU(2)_L$ multiplet fermions and scalar fields in which the inert feature of a scalar to realize the one-loop neutrino mass can be achieved by the cancellation among Higgs couplings thanks to non-trivial terms in the Higgs potential and to present it in a simpler way. Then we discuss our typical cut-off scale by computing renormalization group equation for $SU(2)_L$ gauge coupling, lepton flavor violations, muon anomalous magnetic moment, possibility of dark matter candidate, neutrino mass matrix satisfying the neutrino oscillation data. Finally, we search for our allowed parameter region to satisfy all the constraints, and discuss a possibility of detecting new charged particles at the large hadron collider.
description: 18 pages, 1 table, 7 figures, version accepted for publication in Nuclear Physics B