cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On the connection of facially exposed and nice cones
Creators: name: Pataki, Gábor
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: A closed convex cone KK in a finite dimensional Euclidean space is called nice if the set K∗+F⊥K∗+F⊥ is closed for all FF faces of KK, where K∗K∗ is the dual cone of KK, and F⊥F⊥ is the orthogonal complement of the linear span of FF. The niceness property plays a role in the facial reduction algorithm of Borwein and Wolkowicz, and the question of whether the linear image of the dual of a nice cone is closed also has a simple answer.We prove several characterizations of nice cones and show a strong connection with facial exposedness. We prove that a nice cone must be facially exposed; conversely, facial exposedness with an added condition implies niceness.We conjecture that nice, and facially exposed cones are actually the same, and give supporting evidence.
High-resolution Structural and Thermodynamic Analysis of Extreme Stabilization of Human Procarboxypeptidase by Computational Protein Design
Creators: name: Reichow, Steve L.
name: Eletr, Ziad M.
name: Dantas, Gautam
name: Havranek, James J.
name: Merritt, Ethan A.
name: Varani, Gabriele
name: Corrent, Colin
name: Baker, David
name: Isern, Nancy G.
name: Kuhlman, Brian
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2007

description: Recent efforts to design de novo or redesign the sequence and structure of proteins using computational techniques have met with significant success. Most, if not all, of these computational methodologies attempt to model atomic-level interactions, and hence high-resolution structural characterization of the designed proteins is critical for evaluating the atomic-level accuracy of the underlying design force-fields. We previously used our computational protein design protocol RosettaDesign to completely redesign the sequence of the activation domain of human procarboxypeptidase A2. With 68% of the wild-type sequence changed, the designed protein, AYEdesign, is over 10kcal/mol more stable than the wild-type protein. Here, we describe the high-resolution crystal structure and solution NMR structure of AYEdesign, which show that the experimentally determined backbone and side-chains conformations are effectively superimposable with the computational model at atomic resolution. To isolate the origins of the remarkable stabilization, we have designed and characterized a new series of procarboxypeptidase mutants that gain significant thermodynamic stability with a minimal number of mutations; one mutant gains more than 5kcal/mol of stability over the wild-type protein with only four amino acid changes. We explore the relationship between force-field smoothing and conformational sampling by comparing the experimentally determined free energies of the overall design and these focused subsets of mutations to those predicted using modified force-fields, and both fixed and flexible backbone sampling protocols.
Compact group actions, spherical bessel functions, and invariant random variables
Creators: name: Gross, Kenneth I.
name: Richards, Donald St.P.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1987

description: The theory of compact group actions on locally compact abelian groups provides a unifying theory under which different invariance conditions studied in several
contexts by a number of statisticians are subsumed as special cases. For example,
Schoenberg’s characterization of radially symmetric characteristic functions on Iw” is
extended to this general context and the integral representations are expressed in
terms of the generalized spherical Bessel functions of Gross and Kunze. These same
Bessel functions are also used to obtain a variant of the Lkvy-Khinchine formula of
Parthasarathy, Ranga Rao, and Varadhan appropriate to invariant distributions.
On hadamard differentiability of extended statistical functional
Creators: name: Sen, Pranab Kumar
name: Ren, Jian-Jian
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1991

description: It has been shown (Reeds, 1976, Ph. D. dissertation, Harvard University) that the remainder term of a form of the Taylor expansion, involving Hadamard derivative, of the statistical functional is asymptotically negligible. This result is extended to a more general form with respect to weighted empirical processes in order to establish some (uniform) linear functional approximations, which is usually needed for drawing statistical conclusions (in a large sample).It has been shown (Reeds, 1976, Ph. D. dissertation, Harvard University) that the remainder term of a form of the Taylor expansion, involving Hadamard derivative, of the statistical functional is asymptotically negligible. This result is extended to a more general form with respect to weighted empirical processes in order to establish some (uniform) linear functional approximations, which is usually needed for drawing statistical conclusions (in a large sample).
Observation of Superfluid Flow in a Bose-Einstein Condensed Gas
Creators: name: Onofrio, R.
name: Raman, C.
name: Vogels, J. M.
name: Abo-Shaeer, J.
name: Chikkatur, A. P.
name: Ketterle, W.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We have studied the hydrodynamic flow in a Bose-Einstein condensate stirred by a macroscopic object, a blue detuned laser beam, using nondestructive {\em in situ} phase contrast imaging. A critical velocity for the onset of a pressure gradient has been observed, and shown to be density dependent. The technique has been compared to a calorimetric method used previously to measure the heating induced by the motion of the laser beam.
description: 4 pages, 5 figures
Possibility of long-range order in clean mesoscopic cylinders
Creators: name: Lisowski, M.
name: Zipper, E.
name: Stebelski, M.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A microscopic Hamiltonian of the magnetostatic interaction is discussed. This long-range interaction can play an important role in mesoscopic systems leading to an ordered ground state. The self-consistent mean field approximation of the magnetostatic interaction is performed to give an effective Hamiltonian from which the spontaneous, self-sustaining currents can be obtained. To go beyond the mean field approximation the mean square fluctuation of the total momentum is calculated and its influence on self-sustaining currents in mesoscopic cylinders with quasi-1D and quasi-2D conduction is considered. Then, by the use of the microscopic Hamiltonian of the magnetostatic interaction for a set of stacked rings, the problem of long-range order is discussed. The temperature $T^{*}$ below which the system is in an ordered state is determined.
description: 14 pages, REVTeX, 5 figures, in print in Phys. Rev. B
Onthophagus somalicola Balthasar 1941
Creators: name: Bezděk, Aleš
name: Hájek, Jiří
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Onthophagus
Onthophagus somalicola

description: Onthophagus somalicola Balthasar, 1941
 Onthophagus somalicola Balthasar, 1941d: 124.
One syntype is deposited in NMPC (ex coll. V. Balthasar):
SYNTYPE (unsexed specimen): ‘ Somalia Ital. / Dolo / III-IV 1937 / S. Venzo [p] // Typus [p, red label, black frame] //
Onthophagus / somalicola / Typ. m. [hw] / Dr. V. Balthasar [p] // somalicola m. [hw, orange label]’.
 Current status. Valid species; not assigned to any subgenus.
description: Published as part of Bezděk, Aleš & Hájek, Jiří, 2013, Catalogue of type specimens of beetles (Coleoptera) deposited in the National Museum, Prague, Czech Republic, pp. 387-442 in Acta Entomologica Musei Nationalis Pragae 53 (1) on page 422, DOI: 10.5281/zenodo.5739743
Supersymmetry solution for finitely extensible dumbbell model
Creators: name: Ilg, P.
name: Karlin, I. V.
name: Succi, S.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Exact relaxation times and eigenfunctions for a simple mechanical model of polymer dynamics are obtained using supersymmetry methods of quantum mechanics. The model includes the finite extensibility of the molecule and does not make use of the self-consistently averaging approximation. The finite extensibility reduces the relaxation times when compared to a linear force. The linear viscoelastic behaviour is obtained in the form of the ``generalized Maxwell model''. Using these results, a numerical integration scheme is proposed in the presence of a given flow kinematics.
description: 5 pages, 2 figures
Use of Moments in Distribution Theory: A Multivariate Case
Creators: name: Kotz, S.
name: Volodin, N.A.
name: Johnson, N.L.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1993

description: In recent papers, Johnson and Kotz (Amer. Statist. 44, 245-249 (1990); Math. Sci. 15, 42-52 (1990)) have explored the utility of moment calculations as a simple way of establishing distributional forms. In particular a characterization theorem for beta distributions has been proved. In this paper these methods are extended to multivariate problems, and a result is established for Dirichlet distributions.
Additional file 1 of Establishment of a resource recycling strategy by optimizing isobutanol production in engineered cyanobacteria using high salinity stress
Creators: name: Wu, Xiao-Xi
name: Li, Jian-Wei
name: Xing, Su-Fang
name: Chen, Hui-Ting
name: Song, Chao
name: Wang, Shu-Guang
name: Yan, Zhen
Publisher: name: figshare
Year: 2021
Subjects: subject: Space Science
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Additional file 1: Table S1. Primers sequences. Table S2. Identification of metabolites from metabolomics between JW11 strain (A) and JW11 strain cultured with 2% sea salt (B). Table S3. Targeted energy metabolites from LC–MS between JW11 strain (A) and JW11 strain cultured with 2% sea salt (B). Figure S1. Analysis of NADPH level and antioxidative ability of engineered S. elongatus under normal and high salinity stress conditions cultured at days 5, 10 and 15. (A) NADPH level. (B) reactive oxygen species level. (C) Glutathione level. (D) Schematic representation of antioxidative stress system in vivo. Figure S2. Analysis of total fatty acid of engineered S. elongatus under normal and high salinity stress conditions cultured at days 5, 10 and 15.
Average Regression Surface for Dependent Data
Creators: name: Cai, Zongwu
name: Fan, Jianqing
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2000

description: We study the estimation of the additive components in additive regression models, based on the weighted sample average of regression surface, for stationary [alpha]-mixing processes. Explicit expression of this method makes possible a fast computation and allows an asymptotic analysis. The estimation procedure is especially useful for additive modeling. In this paper, it is shown that the average surface estimator shares the same optimality as the ideal estimator and has the same ability to estimate the additive component as the ideal case where other components are known. Formulas for the asymptotic bias and normality of the estimator are established. A small simulation study is carried out to illustrate the performance of the estimation and a real example is also used to demonstrate our methodology.
Additional file 4: of The golden death bacillus Chryseobacterium nematophagum is a novel matrix digesting pathogen of nematodes
Creators: name: Page, Antony
name: Roberts, Mark
name: Marie-Anne FĂŠlix
name: Pickard, Derek
name: Page, Andrew
name: Weir, William
Publisher: name: figshare
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Biotechnology
subject: Evolutionary Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Concentration and ratio of Chryseobacterium nematophagum (JUb275) to Escherichia coli (OP50-1) required to kill Caenorhabditis elegans elegans larvae after 24â h exposure. (PDF 158 kb)
On-the-fly adaptivity for nonlinear twoscale simulations using artificial neural networks and reduced order modeling
Creators: name: Fritzen, Felix
name: Fernández, Mauricio
name: Larsson, Fredrik
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A multi-fidelity surrogate model for highly nonlinear multiscale problems is proposed. It is based on the introduction of two different surrogate models and an adaptive on-the-fly switching. The two concurrent surrogates are built incrementally starting from a moderate set of evaluations of the full order model. Therefore, a reduced order model (ROM) is generated. Using a hybrid ROM-preconditioned FE solver, additional effective stress-strain data is simulated while the number of samples is kept to a moderate level by using a dedicated and physics-guided sampling technique. Machine learning (ML) is subsequently used to build the second surrogate by means of artificial neural networks (ANN). Different ANN architectures are explored and the features used as inputs of the ANN are fine tuned in order to improve the overall quality of the ML model. Additional ANN surrogates for the stress errors are generated. Therefore, conservative design guidelines for error surrogates are presented by adapting the loss functions of the ANN training in pure regression or pure classification settings. The error surrogates can be used as quality indicators in order to adaptively select the appropriate -- i.e. efficient yet accurate -- surrogate. Two strategies for the on-the-fly switching are investigated and a practicable and robust algorithm is proposed that eliminates relevant technical difficulties attributed to model switching. The provided algorithms and ANN design guidelines can easily be adopted for different problem settings and, thereby, they enable generalization of the used machine learning techniques for a wide range of applications. The resulting hybrid surrogate is employed in challenging multilevel FE simulations for a three-phase composite with pseudo-plastic micro-constituents. Numerical examples highlight the performance of the proposed approach.
Additional file 5: of The golden death bacillus Chryseobacterium nematophagum is a novel matrix digesting pathogen of nematodes
Creators: name: Page, Antony
name: Roberts, Mark
name: Marie-Anne FĂŠlix
name: Pickard, Derek
name: Page, Andrew
name: Weir, William
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Evolutionary Biology
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Caenorhabditis elegans attraction assays to Chryseobacterium nematophagum. (PDF 144 kb)
Correlation and spectral theory for periodically correlated random fields indexed on Z2
Creators: name: Kallianpur, G
name: Hurd, H
name: Farshidi, J
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2004

description: We show that a field X(m, n) is strongly periodically correlated with period (M, N) if and only if there exist commuting unitary operators, U1and U2that shift the field unitarily by M and N along the respective coordinates. This is equivalent to a field whose shifts on a subgroup are unitary. We also define weakly PC fields in terms of other subgroups of the index set over which the field shifts unitarily. We show that every strongly PC field can be represented as X(m, n) = U1mU2n(m, n) where U1and U2are unitary and P(m, n) is a doubly periodic vector-valued sequence. This leads to the Gladyshev representations of the field and to strong harmonizability. The 2- and 4-fold Wold decompositions are expressed for weakly commuting strongly PC fields. When the field is strongly commuting, a one-point innovation can be defined. For this case, we give necessary and sufficient conditions for a strongly commuting field to be PC and strongly regular, although possibly of deficient rank, in terms of periodicity and summability of the southwest moving average coefficients.
Asymptotic properties of computationally efficient alternative estimators for a class of multivariate normal models
Creators: name: Caragea, Petruţa C.
name: Smith, Richard L.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2007

description: Parameters of Gaussian multivariate models are often estimated using the maximum likelihood approach. In spite of its merits, this methodology is not practical when the sample size is very large, as, for example, in the case of massive georeferenced data sets. In this paper, we study the asymptotic properties of the estimators that minimize three alternatives to the likelihood function, designed to increase the computational efficiency. This is achieved by applying the information sandwich technique to expansions of the pseudo-likelihood functions as quadratic forms of independent normal random variables. Theoretical calculations are given for a first-order autoregressive time series and then extended to a two-dimensional autoregressive process on a lattice. We compare the efficiency of the three estimators to that of the maximum likelihood estimator as well as among themselves, using numerical calculations of the theoretical results and simulations.
Two-fluid dynamics for a Bose-Einstein condensate out of local equilibrium with the non-condensate
Creators: name: Nikuni, T.
name: Zaremba, E.
name: Griffin, A.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We extend our recent work on the two-fluid hydrodynamics of a Bose-condensed gas by including collisions involving both condensate and non-condensate atoms. These collisions are essential for establishing a state of local thermodynamic equilibrium between the condensate and non-condensate. Our theory is more general than the usual Landau two-fluid theory, to which it reduces in the appropriate limit, in that it allows one to describe situations in which a state of complete local equilibrium between the two components has not been reached. The exchange of atoms between the condensate and non-condensate is associated with a new relaxational mode of the gas.
description: 4 pages, revtex, 1 postscript figure, Fig.1 has been corrected
Additional file 6: of The golden death bacillus Chryseobacterium nematophagum is a novel matrix digesting pathogen of nematodes
Creators: name: Page, Antony
name: Roberts, Mark
name: Marie-Anne FĂŠlix
name: Pickard, Derek
name: Page, Andrew
name: Weir, William
Publisher: name: figshare
Year: 2019
Subjects: subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Evolutionary Biology
subject: Ecology
subject: Marine Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Killing of larval parasitic nematode species on exposure to Chryseobacterium nematophagum. (PDF 9871 kb)
title: Explosive Vapor Generation and Sampling in Conjunction with Ion Mobility Spectrometry
Creators: name: Almeer, Saeed H.
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 1998

description: The primary objective of this research is to develop an inexpensive and reliable method to generate vapor pulses of explosives using 2,4,6-trinitrotoluene TNTl for proof of concept. A secondary objective is to demonstrate the use of the vapor generator in various applications keeping in mind potential field scenarios involving explosives. A vapor generator/collector system was developed which gives reproducible pulses of TNT vapors at nanogram levels. The use of this technology was demonstrated in evaluating different surfaces for vapor adsorption of TNT in conjunction with ion mobility spectrometry as the primary analytical tool. Of the materials examined, Teflon was by far the best substrate for adsorption, retention, and subsequent recovery of TNT using ion mobility spectrometry for analysis.
Multilayer coevolution dynamics of the nonlinear voter model
Creators: name: Min, Byungjoon
name: Miguel, Maxi San
Publisher: name: arXiv
Year: 2018
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: We study a coevolving nonlinear voter model on a two-layer network. Coevolution stands for coupled dynamics of the state of the nodes and of the topology of the network in each layer. The plasticity parameter p measures the relative time scale of the evolution of the states of the nodes and the evolution of the network by link rewiring. Nonlinearity of the interactions is taken into account through a parameter q that describes the nonlinear effect of local majorities, being q = 1 the marginal situation of the ordinary voter model. Finally the connection between the two layers is measured by a degree of multiplexing `. In terms of these three parameters, p, q and ` we find a rich phase diagram with different phases and transitions. When the two layers have the same plasticity p, the fragmentation transition observed in a single layer is shifted to larger values of p plasticity, so that multiplexing avoids fragmentation. Different plasticities for the two layers lead to new phases that do not exist in a coevolving nonlinear voter model in a single layer, namely an asymmetric fragmented phase for q > 1 and an active shattered phase for q < 1. Coupling layers with dfferent types of nonlinearity, q1 < 1 and q2 > 1, we can find two different transitions by increasing the plasticity parameter, a first absorbing transition with no fragmentation and a subsequent fragmentation transition.
Cuts for 3-D magnetic scalar potentials: visualizing unintuitive surfaces arising from trivial knots
Creators: name: Stockrahm, Alex
name: Lahtinen, Valtteri
name: Kangas, Jari J. J.
name: Kotiuga, P. Robert
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: A wealth of literature exists on computing and visualizing cuts for the magnetic scalar potential of a current carrying conductor via Finite Element Methods (FEM) and harmonic maps to the circle. By a cut we refer to an orientable surface bounded by a given current carrying path (such that the flux through it may be computed) that restricts contour integrals on a curl-zero vector field to those that do not link the current-carrying path, analogous to branch cuts of complex analysis. This work is concerned with a study of a peculiar contour that illustrates topologically unintuitive aspects of cuts obtained from a trivial loop and raises questions about the notion of an optimal cut. Specifically, an unknotted curve that bounds only high genus surfaces in its convex hull is analyzed. The current work considers the geometric realization as a current-carrying wire in order to construct a magnetic scalar potential. Moreover, we consider the problem of choosing an energy functional on the space of maps, suggesting an algorithm for computing cuts via minimizing a conformally invariant functional utilizing Newton iteration.
description: May 2019: Substantial revision. Presented at the 6th European Seminar on Computing in Pilsen, Czech Republic, June 3-8 2018
A Variational Approach to the Localization Transition of Heteropolymers at Interfaces
Creators: name: Trovato, Antonio
name: Maritan, Amos
Publisher: name: arXiv
Year: 1998
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A chain with random hydrophobic-hydrophilic charges is studied in the presence of an interface separating a polar from a non polar solvent. Within a Gaussian variational approach in replica space, a transition is found, from a high temperature region, where the chain is delocalized, to a low temperature region, where the chain is localized at the interface. The transition temperature diverges as the neutrality of the chain is approached. Our results are in agreement with an Imry-Ma type argument by Garel et al. The problem of replica symmetry breaking is also addressed, and the replica-symmetric solution is found to be unstable.
description: 11 pages, no figures; revised version, to be published in Europhys. Lett
Boundary behavior in High Dimension, Low Sample Size asymptotics of PCA
Creators: name: Jung, Sungkyu
name: Sen, Arusharka
name: Marron, J.S.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: In High Dimension, Low Sample Size (HDLSS) data situations, where the dimension d is much larger than the sample size n, principal component analysis (PCA) plays an important role in statistical analysis. Under which conditions does the sample PCA well reflect the population covariance structure? We answer this question in a relevant asymptotic context where d grows and n is fixed, under a generalized spiked covariance model. Specifically, we assume the largest population eigenvalues to be of the order dα, where α1. Earlier results show the conditions for consistency and strong inconsistency of eigenvectors of the sample covariance matrix. In the boundary case, α=1, where the sample PC directions are neither consistent nor strongly inconsistent, we show that eigenvalues and eigenvectors do not degenerate but have limiting distributions. The result smoothly bridges the phase transition represented by the other two cases, and thus gives a spectrum of limits for the sample PCA in the HDLSS asymptotics. While the results hold under a general situation, the limiting distributions under Gaussian assumption are illustrated in greater detail. In addition, the geometric representation of HDLSS data is extended to give three different representations, that depend on the magnitude of variances in the first few principal components.
Independent freezing of charge and spin dynamics in La1.5Sr0.5CoO4
Creators: name: Zaliznyak, I. A.
name: Hill, J. P.
name: Tranquada, J. M.
name: Erwin, R.
name: Moritomo, Y.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present elastic and quasielastic neutron scattering measurements characterizing peculiar short-range charge-orbital and spin order in the layered perovskite material La1.5Sr0.5CoO4. We find that below Tc~750 K holes introduced by Sr doping lose mobility and enter a statically ordered {\it charge glass} phase with loosely correlated checkerboard arrangement of empty and occupied d{3z2-r2} orbitals (Co3+ and Co2+). The dynamics of the resultant mixed spin system is governed by the anisotropic nature of the crystal-field Hamiltonian and the peculiar exchange pattern produced by the orbital order. It undergoes a {\it spin freezing} transition at much a lower temperature, Ts~30 K.
description: 4 pages, 3 figures, Latex. Submitted to PRL
Additional file 1 of Prevalence of chronic cough in China: a systematic review and meta-analysis
Creators: name: Liang, Hanwen
name: Ye, Weiyan
name: Wang, Zhufeng
name: Liang, Jingyi
name: Yi, Fang
name: Jiang, Mei
name: Lai, Kefang
Publisher: name: figshare
Year: 2022
Subjects: Biotechnology
Biological Sciences not elsewhere classified
Science Policy

description: Additional file 1. Search strategies.
Consistency of sparse PCA in High Dimension, Low Sample Size contexts
Creators: name: Shen, Haipeng
name: Marron, J.S.
name: Shen, Dan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: Sparse Principal Component Analysis (PCA) methods are efficient tools to reduce the dimension (or number of variables) of complex data. Sparse principal components (PCs) are easier to interpret than conventional PCs, because most loadings are zero. We study the asymptotic properties of these sparse PC directions for scenarios with fixed sample size and increasing dimension (i.e. High Dimension, Low Sample Size (HDLSS)). We consider the previously studied single spike covariance model and assume in addition that the maximal eigenvector is sparse. We extend the existing HDLSS asymptotic consistency and strong inconsistency results of conventional PCA in an entirely new direction. We find a large set of sparsity assumptions under which sparse PCA is still consistent even when conventional PCA is strongly inconsistent. The consistency of sparse PCA is characterized along with rates of convergence. Furthermore, we clearly identify the mathematical boundaries of the sparse PCA consistency, by showing strong inconsistency for an oracle version of sparse PCA beyond the consistent region, as well as its inconsistency on the boundaries of the consistent region. Simulation studies are performed to validate the asymptotic results in finite samples.
Onthophagus snoflaki Balthasar 1944
Creators: name: Bezděk, Aleš
name: Hájek, Jiří
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Onthophagus
Onthophagus snoflaki

description: Onthophagus snoflaki Balthasar, 1944
 Onthophagus šnofláki Balthasar, 1944: 90.
The holotype is deposited in NMPC (ex coll. V. Balthasar):
HOLOTYPE (♀): ‘Manow / D.O. Afr. [p] // TYPUS [p, red label] // O. Šnofláki / n.sp. m. [hw] / Dr. V. Balthasar det. [p] // Onthophagus / Šnofláki m. [hw, pink label]’.
 Current status. Valid species; not assigned to any subgenus.
description: Published as part of Bezděk, Aleš & Hájek, Jiří, 2013, Catalogue of type specimens of beetles (Coleoptera) deposited in the National Museum, Prague, Czech Republic, pp. 387-442 in Acta Entomologica Musei Nationalis Pragae 53 (1) on page 422, DOI: 10.5281/zenodo.5739743
Additional file 3 of Prevalence of chronic cough in China: a systematic review and meta-analysis
Creators: name: Liang, Hanwen
name: Ye, Weiyan
name: Wang, Zhufeng
name: Liang, Jingyi
name: Yi, Fang
name: Jiang, Mei
name: Lai, Kefang
Publisher: name: figshare
Year: 2022
Subjects: Biotechnology
Biological Sciences not elsewhere classified
Science Policy

description: Additional file 3. Exclusion with reasons.
Reconstruction of a low-rank matrix in the presence of Gaussian noise
Creators: name: Shabalin, Andrey A.
name: Nobel, Andrew B.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: This paper addresses the problem of reconstructing a low-rank signal matrix observed with additive Gaussian noise. We first establish that, under mild assumptions, one can restrict attention to orthogonally equivariant reconstruction methods, which act only on the singular values of the observed matrix and do not affect its singular vectors. Using recent results in random matrix theory, we then propose a new reconstruction method that aims to reverse the effect of the noise on the singular value decomposition of the signal matrix. In conjunction with the proposed reconstruction method we also introduce a Kolmogorov–Smirnov based estimator of the noise variance.
Associations between changes in ferritin levels and susceptibility-weighted imaging filtered phase in patients with relapsing–remitting multiple sclerosis over 24weeks of therapy with subcutaneous interferon beta-1a three times weekly
Creators: name: Markovic-Plese, Silva
name: Bergsland, Niels
name: Dwyer, Michael G.
name: Zivadinov, Robert
name: Carl, Ellen
name: Heininen-Brown, Mari
name: Kennedy, Cheryl
name: Hayward, Brooke
name: Weinstock-Guttman, Bianca
name: Dangond, Fernando
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: AbstractSubanalysis of a pilot study (NCT01085318) assessed correlations between serum ferritin and imaging assessments in relapsing–remitting multiple sclerosis patients (n=23) receiving 44μg interferon beta-1a subcutaneously three times weekly. At baseline, 12, and 24weeks, mean ferritin was 75, 127 (p
Nonuniqueness of the Potentials of Spin-Density-Functional Theory
Creators: name: Capelle, K.
name: Vignale, G.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: It is shown that, contrary to widely held beliefs, the potentials of spin-density-functional theory (SDFT) are not unique functionals of the spin densities. Explicit examples of distinct sets of potentials with the same ground-state densities are constructed, and general arguments that uniqueness should not occur in SDFT and other generalized density-functional theories are given. As a consequence, various types of applications of SDFT require significant corrections or modifications.
description: 4 pages, no figures
Additional file 4 of Prevalence of chronic cough in China: a systematic review and meta-analysis
Creators: name: Liang, Hanwen
name: Ye, Weiyan
name: Wang, Zhufeng
name: Liang, Jingyi
name: Yi, Fang
name: Jiang, Mei
name: Lai, Kefang
Publisher: name: figshare
Year: 2022
Subjects: Biotechnology
Biological Sciences not elsewhere classified
Science Policy

description: Additional file 4. Quality assessment of the included articles according to scale of Agency for Healthcare Research and Quality.
Onthophagus (Onthophagus) sternax Balthasar 1959
Creators: name: Bezděk, Aleš
name: Hájek, Jiří
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Onthophagus
Onthophagus sternax

description: Onthophagus (Onthophagus) sternax Balthasar, 1959
 Onthophagus (s. str.) sternax Balthasar, 1959: 189, Fig. 2a.
The holotype and one paratype (the allotype) are deposited in NMPC (ex coll. V. Balthasar):
HOLOTYPE (J): ‘ China [hw, pink label] // Onthophagus / sternax J / n.sp. Balth. [hw] / Holotypus [p, pink label]’. PARATYPE (♀): ‘ China [hw, pink label] // Onthophagus / sternax ♀ / n.sp. Balth. [hw] / Allotypus [p, pink label]’.
 Current status. Valid species.
description: Published as part of Bezděk, Aleš & Hájek, Jiří, 2013, Catalogue of type specimens of beetles (Coleoptera) deposited in the National Museum, Prague, Czech Republic, pp. 387-442 in Acta Entomologica Musei Nationalis Pragae 53 (1) on page 422, DOI: 10.5281/zenodo.5739743
Operator method in solving non-linear equations of the Hartree-Fock type
Creators: name: Thu, Le Anh
name: Komarov, L I
Publisher: name: arXiv
Year: 1998
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The operator method is used to construct the solutions of the problem of the polaron in the strong coupling limit and of the helium atom on the basis of the Hartree-Fock equation. $E_0=-0.1085128052α^2$ is obtained for the polaron ground-state energy. Energies for 2s- and 3s-states are also calculated. The other excited states are briefly discussed.
description: 7 pages
Onthophagus (Onthophagus) taxillus Balthasar 1969
Creators: name: Bezděk, Aleš
name: Hájek, Jiří
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Onthophagus
Onthophagus taxillus

description: Onthophagus (Onthophagus) taxillus Balthasar, 1969
 Onthophagus (s. str.) taxillus Balthasar, 1969: 384, Fig. 19.
The holotype and 11 paratypes (including the allotype) are deposited in NMPC (ex coll. V.
Balthasar):
HOLOTYPE (J): ‘N. Guinea / Biró 1899 [p] // Sattelberg / Huon-Golf [p] // Onthophagus / taxillus n.sp. / Balthasar J / 66 [hw] Hlotypus [p, ochreous label]’.
PARATYPE (♀): ‘ NOVA GUINEA / BIRÓ 1899 [p] // HUON-GOLF / SIMBANG [p] // Onthophagus / taxillus n.sp. / Balthasar / 66 [hw] Allotypus [p] ♀ [hw, ochreous label]’.
PARATYPES (2 JJ): ‘N. Guinea / Biró 1899 [p] // Sattelberg / Huon-Golf [p] // Onthophagus / taxillus n.sp. / Balthasar J / 66 [hw] Paratypus [p, ochreous label]’.
PARATYPES (5♀♀): ‘N. Guinea / Biró 1899 [p] // Sattelberg / Huon-Golf [p] // Onthophagus / taxillus n.sp. / Balthasar ♀ / 66 [hw] Paratypus [p, ochreous label]’.
PARATYPE (♀): ‘NOVA GUINEA / BIRÓ 1899 [p] // HUON-GOLF / SIMBANG [p] // Onthophagus / taxillus n.sp. / Balthasar / 66 [hw] Paratypus [p] ♀ [hw, ochreous label]’.
PARATYPE (J): ‘NOVA GUINEA / BIRÓ 1899 [p] // HUON-GOLF / SIMBANG [p] // Onthophagus / taxillus n.sp. / Balthasar / 66 [hw] Paratypus [p] J [hw, ochreous label]’.
PARATYPE (J): ‘N. Guinea / Biró 97 [p] // Stephansort / Astrolabe Bai [p] // Onthophagus / taxillus n.sp. / Balthasar / 66 [hw] Paratypus [p] J [hw, ochreous label]’.
 Current status. Valid species.
description: Published as part of Bezděk, Aleš & Hájek, Jiří, 2013, Catalogue of type specimens of beetles (Coleoptera) deposited in the National Museum, Prague, Czech Republic, pp. 387-442 in Acta Entomologica Musei Nationalis Pragae 53 (1) on page 424, DOI: 10.5281/zenodo.5739743
Random Sidon Sequences
Creators: name: Rapoport, Rebecca
name: Janson, Svante
name: Godbole, Anant P.
name: Locantore, Nicholas W.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1999

description: A subset A of the set [n] = {1, 2,..., n}, \A\ = k, is said to form a Sidon (or B-h) sequence, h greater than or equal to 2, if each of the sums a(1) + a(2) +...+ a(h), a(1) less than or equal to a ...
Realization of Kondo chain in CeCo$_2$Ga$_8$
Creators: name: Cheng, Kangqiao
name: Wang, Le
name: Xu, Yuanji
name: Yang, Feng
name: Zhu, Haipeng
name: Ke, Jiezun
name: Lu, Xiufang
name: Xia, Zhengcai
name: Wang, Junfeng
name: Shi, Youguo
name: Yang, Yifeng
name: Luo, Yongkang
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We revisited the anisotropy of the heavy-fermion material CeCo$_2$Ga$_8$ by measuring the electrical resistivity and magnetic susceptibility along all the principal $\mathbf{a}$-, $\mathbf{b}$- and $\mathbf{c}$-axes. Resistivity along $\mathbf{c}$-axis ($ρ_c$) shows clear Kondo coherence below about 17 K, while both $ρ_{a}$ and $ρ_{b}$ remain incoherent down to 2 K. The magnetic anisotropy is well understood within the theoretical frame of crystalline electric field effect in combination with magnetic exchange interactions. We found the anisotropy ratio of these magnetic exchange interactions, $|J_{ex}^c/J_{ex}^{a,b}|$, reaches a large value of 4-5. We, therefore, firmly demonstrate that CeCo$_2$Ga$_8$ is a quasi-one-dimensional heavy-fermion compound both electrically and magnetically, and thus provide a realistic example of \textit{Kondo chain}.
description: 5 pages, 4 figures, 1 table
Traveling Waves, Front Selection, and Exact Nontrivial Exponents in a Random Fragmentation Problem
Creators: name: Krapivsky, P. L.
name: Majumdar, Satya N.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study a random bisection problem where an initial interval of length x is cut into two random fragments at the first stage, then each of these two fragments is cut further, etc. We compute the probability P_n(x) that at the n-th stage, each of the 2^n fragments is shorter than 1. We show that P_n(x) approaches a traveling wave form, and the front position x_n increases as x_n\sim n^βρ^n for large n. We compute exactly the exponents ρ=1.261076... and β=0.453025.... as roots of transcendental equations. We also solve the m-section problem where each interval is broken into m fragments. In particular, the generalized exponents grow as ρ_m\approx m/(\ln m) and β_m\approx 3/(2\ln m) in the large m limit. Our approach establishes an intriguing connection between extreme value statistics and traveling wave propagation in the context of the fragmentation problem.
description: 4 pages Revtex
Comment on "Evidence for the Droplet/Scaling Picture of Spin Glasses"
Creators: name: Marinari, E.
name: Parisi, G.
name: Ruiz-Lorenzo, J. J.
name: Zuliani, F.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In a recent letter Moore et al. claim to exhibit evidence for a non-mean-field behavior of the $3d$ Ising spin glass. We show that their claim is insubstantial, and by analyzing in detail the behavior of the Migdal-Kadanoff approximation (MKA) as compared to the behavior of the Edwards-Anderson (EA) spin glass we find further evidence of a mean-field like behavior of the $3d$ spin glass.
description: 1 page comment including one postscript figure
A Novel Method for Sampling Alpha-Helical Protein Backbones
Creators: name: Fain, Boris
name: Levitt, Michael
Publisher: name: arXiv
Year: 2000
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Quantitative Biology (q-bio)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We present a novel technique of sampling the configurations of helical proteins. Assuming knowledge of native secondary structure, we employ assembly rules gathered from a database of existing structures to enumerate the geometrically possible three-dimensional arrangements of the constituent helices. We produce a library of possible folds for twenty-five helical protein cores. In each case, our method finds significant numbers of conformations close to the native structure. In addition we assign coordinates to all atoms for four of the twenty-five proteins and show that this has a small effect on the number of near-native conformations. In the context of database driven exhaustive enumeration our method performs extremely well, yielding significant percentages of structures (between 0.02% and 82%) within 6 Angstroms of the native structure. The method's speed and efficiency make it a valuable tool for predicting protein structure.
description: Submitted to JMB 27 pages, 4 figures; revtex, epsf (included)
On Dean-Kawasaki Dynamics with Smooth Drift Potential
Creators: name: Konarovskyi, Vitalii
name: Lehmann, Tobias
name: von Renesse, Max
Publisher: name: arXiv
Year: 2018
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60H15, 60K35, 82C22, 60G57, 82C31

description: We consider the Dean-Kawasaki equation with smooth drift interaction potential and show that measure valued solutions exist only in certain parameter regimes in which case they are given by finite Langevin particle systems with mean field interaction.
description: 17 pages
Angle resolved Cu and O photoemission intensities in CuO_2 planes
Creators: name: Eroles, J. M.
name: Batista, C. D.
name: Aligia, A. A.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Using a mapping from the three-band extended Hubbard model for cuprate superconductors into a generalized t-J model, and exact diagonalization of the latter in a 4x4 cluster, we determine the quasiparticle weight for destruction of a Cu or an O electrons with definite wave vector k. We also derive an approximate but accurate analytical expression which relates the O intensity with the quasiparticle weight in the generalized t-J model, and use it to obtain the O intensity from results of the self-consistent Born approximation. The k-dependence of Cu and O intensities is markedly different. In particular the O intensity vanishes for k=(0,0). Our results are relevant for the interpretation of angle-resolved photoemission experiments.
description: 8 pages, 3 figures, submitted to Phys. Rev. B
title: 01_2235
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
How an Anomalous Cusp Bifurcates
Creators: name: Maier, Robert S.
name: Stein, D. L.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the pattern of activated trajectories in a double well system without detailed balance, in the weak noise limit. The pattern may contain cusps and other singular features, which are similar to the caustics of geometrical optics. Their presence is reflected in the quasipotential of the system, much as phase transitions are reflected in the free energy of a thermodynamic system. By tuning system parameters, a cusp may be made to coincide with the saddle point. Such an anomalous cusp is analogous to a nonclassical critical point. We derive a scaling law, and nonpolynomial `equations of state', that govern its bifurcation into conventional cusps.
description: 9 pages with 3 figures, uses REVTeX and epsfig