cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Studies on electrostatic interactions of colloidal particles under two-dimensional confinement
Creators: name: Lee, Chi-Lun
name: Ng, Sio-Kit
Publisher: name: arXiv
Year: 2010
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the effective electrostatic interactions between a pair of charged colloidal particles without salt ions while the system is confined in two dimensions. In particular we use a simplified model to elucidate the effects of rotational fluctuations in counterion distribution. The results exhibit effective colloidal attractions under appropriate conditions. Meanwhile, long-range repulsions persist over most of our studied cases. The repulsive forces arise from the fact that in two dimensions the charged colloids cannot be perfectly screened by counterions, as the residual quadrupole moments contribute to the repulsions at longer range. And by applying multiple expansions we find that the attractive forces observed at short range are mainly contributed from electrostatic interactions among higher-order electric moments. We argue that the scenario for attractive interactions discussed in this work is applicable to systems of charged nanoparticles or colloidal solutions with macroions.
description: 23 pages, 11 figures, 1 table
New Action Principle for General Relativity
Creators: name: Krasnov, Kirill
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: General Relativity can be reformulated as a diffeomorphism invariant SU(2) gauge theory. A new action principle for this "pure connection" formulation of GR is described.
description: 4 pages, no figures
Libellula pontica Selys 1887
Creators: name: K. J. Morton
Publisher: name: Zenodo
Year: 1924
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Libellulidae
Libellula
Libellula pontica

description:  Libellula pontica Selys. Jisr Banat Yakob, Jordan Valley, ♂, 6.iv.22; Lake Huleh, ♂♂ ♀♀, 24.v.22. A ♂ was also taken by Barraud in the Kishon plain, 16.v.20. An interesting species of comparatively limited distribution, other known localities being Antioche, Kellemisch, and Malatia. As recorded by Ris  ( op. cit. p. 1098), it has also been taken in the Tiflis region by Bartenef, who described it as a new species under the name of Leptetrum rubruin (Arb. Zool. Abt. Univ. Warschau, 1912, p. 5 seep.).
description: Published as part of K. J. Morton, 1924, The Dragon-flies (Odonata) of Palestine, based primarily on collection made by Dr. P. A. Buxton, with Notes on the Species of the Adjacent Regions., pp. 25-44 in Transactions of the Entomological Society of London 1924 on page 42, DOI: 10.5281/zenodo.3539379
Banach Gabor frames with Hermite functions: polyanalytic spaces from the Heisenberg group
Creators: name: Abreu, Luis Daniel
name: Gröchenig, Karlheinz
Publisher: name: arXiv
Year: 2010
Subjects: subject: Complex Variables (math.CV)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 46E22, 33C45, 81S30, 30H05, 41A05, 42C15

description: Gabor frames with Hermite functions are equivalent to sampling sequences in true Fock spaces of polyanalytic functions. In the L^2-case, such an equivalence follows from the unitarity of the polyanalytic Bargmann transform. We will introduce Banach spaces of polyanalytic functions and investigate the mapping properties of the polyanalytic Bargmann transform on modulation spaces. By applying the theory of coorbit spaces and localized frames to the Fock representation of the Heisenberg group, we derive explicit polyanalytic sampling theorems which can be seen as a polyanalytic version of the lattice sampling theorem discussed by J. M. Whittaker in Chapter 5 of his book "Interpolatory Function Theory".
description: 17 pages
Mapping sociological regions in the Pacific Northwest: a sociological typology for understanding relationships between biophysical settings and economic outcomes
Creators: name: Trammell, Jamie
name: Evans, Jeffrey
name: Rego, Jesse Jo
name: Bayarsky, Alec
Publisher: name: Zenodo
Year: 2022
Subjects: socio-economic
ecoregions
census
Uniform Manifold Approximation and Projection
Random Forest Models

description: Effective conservation cannot happen without support from all people involved or impacted. While there are many tools to encourage better communication and collaboration (i.e. stakeholder engagement, ecoregional planning, etc), many of these approaches are not always feasible or equitable, especially across broad landscapes. We propose a typology to assess how people may interact with their environment as a first step to hypothesizing specific relationships between communities and their broader environmental context. Utilizing socioeconomic data from the U.S. census and ecoregional data from the U.S. Geological Survey, we model this relationship between biophysical setting and socioeconomics in the Pacific Northwest using Uniform Manifold Approximation and Projection and Random Forest models. Through our analysis, we demonstrate that ecoregional settings easily explain variance observed in variables like income, poverty, and employment across the census-defined boundaries. Through this work, we illustrate the ability to hierarchically nest socioeconomic indicators within biophysical systems to create socioecological regions useful for connecting conservation to the people of the place.
description: This research is a product of the PARSEC group funded by the Belmont Forum as part of its Collaborative Research Action (CRA) on Science-Driven e-Infrastructures Innovation (SEI) with funding from the ANR, FAPESP, NSF and JST with the synthesis centre CESAB of the French Foundation for Research on Biodiversity.
Diplacodes lefebvrei Rambur 1842
Creators: name: K. J. Morton
Publisher: name: Zenodo
Year: 1924
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Libellulidae
Diplacodes
Diplacodes lefebvrei

description: Khedeira, ♀, 31.v.21; Nahr es Zerka, ♂, v.23. Kellernisch, Selys. Distributed over the whole African Continent and in Madagascar and Mauritius.
description: Published as part of K. J. Morton, 1924, The Dragon-flies (Odonata) of Palestine, based primarily on collection made by Dr. P. A. Buxton, with Notes on the Species of the Adjacent Regions., pp. 25-44 in Transactions of the Entomological Society of London 1924 on page 42, DOI: 10.5281/zenodo.3539379
Calculation of quantum discord for qubit-qudit or N qubits
Creators: name: vinjanampathy, sai
name: Rau, A. R. P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum discord, a kind of quantum correlation, is defined as the difference between quantum mutual information and classical correlation in a bipartite system. It has been discussed so far for small systems with only a few independent parameters. We extend here to a much broader class of states when the second party is of arbitrary dimension d, so long as the first, measured, party is a qubit. We present two formulae to calculate quantum discord, the first relating to the original entropic definition and the second to a recently proposed geometric distance measure which leads to an analytical formulation. The tracing over the qubit in the entropic calculation is reduced to a very simple prescription. And, when the d-dimensional system is a so-called X state, the density matrix having non-zero elements only along the diagonal and anti-diagonal so as to appear visually like the letter X, the entropic calculation can be carried out analytically. Such states of the full bipartite qubit-qudit system may be named "extended X states", whose density matrix is built of four block matrices, each visually appearing as an X. The optimization involved in the entropic calculation is generally over two parameters, reducing to one for many cases, and avoided altogether for an overwhelmingly large set of density matrices as our numerical investigations demonstrate. Our results also apply to states of a N-qubit system, where "extended X states" consist of (2^(N+2) - 1) states, larger in number than the (2^(N+1) - 1) of X states of N qubits. While these are still smaller than the total number (2^(2N) - 1) of states of N qubits, the number of parameters involved is nevertheless large. In the case of N = 2, they encompass the entire 15-dimensional parameter space, that is, the extended X states for N = 2 represent the full qubit-qubit system.
description: 6 pages, 1 figure
Macroscopic behavior of bidisperse suspensions of noncolloidal particles in yield stress fluids
Creators: name: Vu, Thai-Son
name: Ovarlez, Guillaume
name: Chateau, Xavier
Publisher: name: arXiv
Year: 2010
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: We study both experimentally and theoretically the rheological behavior of isotropic bidisperse suspensions of noncolloidal particles in yield stress fluids. We focus on materials in which noncolloidal particles interact with the suspending fluid only through hydrodynamical interactions. We observe that both the elastic modulus and yield stress of bidisperse suspensions are lower than those of monodisperse suspensions of same solid volume fraction. Moreover, we show that the dimensionless yield stress of such suspensions is linked to their dimensionless elastic modulus and to their solid volume fraction through the simple equation of Chateau et al.[J. rheol. 52, 489-506 (2008)]. We also show that the effect of the particle size heterogeneity can be described by means of a packing model developed to estimate random loose packing of assemblies of dry particles. All these observations finally allow us to propose simple closed form estimates for both the elastic modulus and the yield stress of bidisperse suspensions: while the elastic modulus is a function of the reduced volume fraction $ϕ/ϕ_m$ only, where $ϕ_m$ is the estimated random loose packing, the yield stress is a function of both the volume fraction $ϕ$ and the reduced volume fraction.
Templates for geodesic flows
Creators: name: Pinsky, Tali
Publisher: name: arXiv
Year: 2011
Subjects: subject: Dynamical Systems (math.DS)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: The fact that the modular template coincides with the Lorenz template, discovered by Ghys, implies modular knots have very peculiar properties. We obtain a generalization of these results to other Hecke triangle groups. In this context, the geodesic flow can never be seen as a flow on a subset of $S^3$, and one is led to consider embeddings into lens spaces. We will geometrically construct homeomorphisms from the unit tangent bundles of the orbifolds into the lens spaces, elliminating the need for elliptic functions. Finally we will use these homeomorphisms to compute templates for the geodesic flows. This offers a tool for topologically investigating their otherwise well studied periodic orbits.
description: 29 pages, 21 figures
Experimental and theoretical lifetimes and transition probabilities in Sb I
Creators: name: Hartman, Henrik
name: Nilsson, Hampus
name: Engström, Lars
name: Lundberg, Hans
name: Palmeri, Patrick
name: Quinet, Pascal
name: Biémont, Emile
Publisher: name: arXiv
Year: 2010
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We present experimental atomic lifetimes for 12 levels in Sb I, out of which seven are reported for the first time. The levels belong to the 5p$^2$($^3$P)6s $^{2}$P, $^{4}$P and 5p$^2$($^3$P)5d $^{4}$P, $^{4}$F and $^{2}$F terms. The lifetimes were measured using time-resolved laser-induced fluorescence. In addition, we report new calculations of transition probabilities in Sb I using a Multiconfigurational Dirac-Hartree-Fock method. The physical model being tested through comparisons between theoretical and experimental lifetimes for 5d and 6s levels. The lifetimes of the 5d $^4$F$_{3/2, 5/2, 7/2}$ levels (19.5, 7.8 and 54 ns, respectively) depend strongly on the $J$-value. This is explained by different degrees of level mixing for the different levels in the $^4$F term.
description: 10 pages
Crocothemis erythraea Brulle 1832
Creators: name: K. J. Morton
Publisher: name: Zenodo
Year: 1924
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Libellulidae
Crocothemis
Crocothemis erythraea

description: Aklta, ♂, 11.vi.21; Amman, ♀, 24.viii.21; Wadi Kabalah, ♂, 15. v.23; Beisan, ♂, 11. vi.23.
description: Published as part of K. J. Morton, 1924, The Dragon-flies (Odonata) of Palestine, based primarily on collection made by Dr. P. A. Buxton, with Notes on the Species of the Adjacent Regions., pp. 25-44 in Transactions of the Entomological Society of London 1924 on page 42, DOI: 10.5281/zenodo.3539379
The nanomechanical properties of amyloid fibrils using molecular dynamics simulations
Creators: name: Nassar, Roy
Publisher: name: University of British Columbia
Year: 2017

description: Amyloid fibril formation, believed to be a generic property of polypeptides, plays major roles in neurodegenerative pathologies such as Alzheimer’s, Parkinson’s and prion diseases, as well as in functional biological processes in many organisms including humans. Revealing specifics of their molecular architecture, conformational stability, mechanisms of formation and physical properties holds clues to devising effective methods to fight their associated pathologies. An increasing requirement has been the development of a detailed understanding of the nanomechanics of amyloid core structures due to their relevance in biomedicine and nanotechnology. Of special significance is the mechanism of fibril fracture and infectivity in disease as well as the mechanical stability for novel biomaterial design. Here, we use a series of steered molecular dynamics simulations on different amyloid fibrils to report a broad spectrum of mechanical properties ranging from a strong and stiff β-helical fibril to weak and soft amyloid such as those formed by the mammalian prion protein. We relate the strength and elastic modulus with hydrogen bond densities and van der Waals energies in the core of the fibrils and show that weakened side-chain interactions lead to fibrils with reduced tensile strengths as a result of modified molecular packing in the fibril core. This modulation might lead to a combination of exceptional mechanical attributes such as those of the human functional amyloids.
Determination of the vacuum optomechanical coupling rate using frequency noise calibration
Creators: name: Gorodetsky, Michael
name: Schliesser, Albert
name: Anetsberger, Georg
name: Deleglise, Samuel
name: Kippenberg, Tobias J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The strength of optomechanical interactions in a cavity optomechanical system can be quantified by a vacuum coupling rate $\vcr$ analogous to cavity quantum electrodynamics. This single figure of merit removes the ambiguity in the frequently quoted coupling parameter defining the frequency shift for a given mechanical displacement, and the effective mass of the mechanical mode. Here we demonstrate and verify a straightforward experimental technique to derive the vacuum optomechanical coupling rate. It only requires applying a known frequency modulation of the employed electromagnetic probe field and knowledge of the mechanical oscillator's occupation. The method is experimentally verified for a micromechanical mode in a toroidal whispering-gallery-resonator and a nanomechanical oscillator coupled to a toroidal cavity via its near field.
description: 11 pages, 2 figures
Local Gaussian operations can enhance continuous-variable entanglement distillation
Creators: name: Zhang, ShengLi
name: van Loock, Peter
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Entanglement distillation is a fundamental building block in long-distance quantum communication. Though known to be useless on their own for distilling Gaussian entangled states, local Gaussian operations may still help to improve non-Gaussian entanglement distillation schemes. Here we show that by applying local squeezing operations, both the performance and the efficiency of existing distillation protocols can be enhanced. We derive the optimal enhancement through local Gaussian unitaries, which can be obtained even in the most natural scenario when Gaussian mixed entangled states are shared after their distribution through a lossy-fiber communication channel.
description: 4 figures
On the self-similar motion of a gravitating Chaplygin fluid
Creators: name: Dzhunushaliev, V.
name: Folomeev, V.
name: Myrzakulov, R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: A self-similar motion of the generalized Chaplygin gas in its own gravitational field is considered. The problem is being studied numerically and analytically (in the limiting cases). It is shown that the model under consideration admits only expanding solutions. As the astrophysical application of the model, a description of rotating curves of spiral galaxies is suggested by using the analytical solutions obtained in the paper.
description: references are added
Outflows and mass accretion in collapsing dense cores with misaligned rotation axis and magnetic field
Creators: name: Ciardi, Andrea
name: Hennebelle, Patrick
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Outflows and jets are intimately related to the formation of stars, and play an important role in redistributing mass, energy and angular momentum within the dense core and parent cloud. The interplay between magnetic field and rotation is responsible for launching these outflows, whose formation has been generally carried out for idealized systems where the angle $α$ between the rotation axis and large-scale magnetic field is zero. Here we explore, through three-dimensional ideal magneto-hydrodynamic simulations, the effects of a non-zero $α$ on the formation of outflows during the collapse of dense pre-stellar cores. We find that mass ejection is less efficient for increasing angle $α$, and that outflows are essentially suppressed for $α\sim90^{\circ}$. An important consequence is a corresponding increase of the mass accreted onto the adiabatic (first) core. In addition, mean flow velocities tend to increase with $α$, and misaligned configurations produce clumpy, heterogeneous outflows that undergo precession, and are more prone to instabilities.
description: Accepted for publication in MNRAS letters, 6 pages 4 figures
Particle size dependence of magnetization and non-centrosymmetry in nanoscale BiFeO3
Creators: name: Goswami, Sudipta
name: Bhattacharya, Dipten
name: Choudhury, P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The saturation magnetization (M_s), antiferromagnetic transition point (T_N), and the off-center displacements of Bi and Fe ions have been measured as a function of particle size in nanoscale BiFeO3. T_N decreases down to ~550 K for particles of size ~5 nm from ~653 K in bulk while M_s rises by more than an order of magnitude. Analysis of crystallographic structure from Rietveld refinement of x-ray diffraction patterns shows significant rise in off-center displacements of Bi (del_Bi) and Fe (del_Fe) ions within a unit cell with the decrease in particle size. The net unit-cell polarization P_S too, is found to be larger in nanoscale regime.
description: 4 pages including 3 figures; J. Appl. Phys. (Proc. 55th Annual MMM Conference; submitted)
Brachythemis leucosticta Burmeister 1839
Creators: name: K. J. Morton
Publisher: name: Zenodo
Year: 1924
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Libellulidae
Brachythemis
Brachythemis leucosticta

description: Samakh, ♀, 13.v.21; Khedeira, ♂, 31.v.21; Lake Huleh, ♂ ♂♀ ♀, 24.v.22; Beisan, ♂ ♂, 13. vi., 23.viii.22. Recorded by Brauer from Smyrna. Common in tropical Africa, and occurs in Algeria.
description: Published as part of K. J. Morton, 1924, The Dragon-flies (Odonata) of Palestine, based primarily on collection made by Dr. P. A. Buxton, with Notes on the Species of the Adjacent Regions., pp. 25-44 in Transactions of the Entomological Society of London 1924 on pages 42-43, DOI: 10.5281/zenodo.3539379
Simple estimators of false discovery rates given as few as one or two p-values without strong parametric assumptions
Creators: name: Bickel, David R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Methodology (stat.ME)
subject: Statistics Theory (math.ST)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: FOS: Biological sciences

description: Multiple comparison procedures that control a family-wise error rate or false discovery rate provide an achieved error rate as the adjusted p-value for each hypothesis tested. However, since such p-values are not probabilities that the null hypotheses are true, empirical Bayes methods have been devised to estimate such posterior probabilities, called local false discovery rates (LFDRs) to emphasize the frequency interpretation of their priors. The main approaches to LFDR estimation, relying either on numerical algorithms to maximize likelihood or on the selection of smoothing parameters for nonparametric density estimation, lack the automatic nature of the methods of error rate control. To begin filling the gap, this paper introduces automatic methods of LFDR estimation with proven asymptotic conservatism under the independence of p-values but without strong parametric assumptions. Simulations indicate that they remain conservative even for very small numbers of hypotheses. One of the proposed procedures enables interpreting the original FDR control rule in terms of LFDR estimation, thereby facilitating practical interpretation. The most conservative of the new procedures is applied to measured abundance levels of 20 proteins.
Sympetrum decoloratum Selys 1884
Creators: name: K. J. Morton
Publisher: name: Zenodo
Year: 1924
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Libellulidae
Sympetrum
Sympetrum decoloratum

description: Sympetrum decoloratum Selys. Recorded by Selys from Antioche, but Ris has relegated all the supposed derolorntirm in the Selysian collection from this locality to striolatirrn and meridionale. The species is one which should occur in the region.
description: Published as part of K. J. Morton, 1924, The Dragon-flies (Odonata) of Palestine, based primarily on collection made by Dr. P. A. Buxton, with Notes on the Species of the Adjacent Regions., pp. 25-44 in Transactions of the Entomological Society of London 1924 on page 43, DOI: 10.5281/zenodo.3539379
Sympetrum meridionale Selys 1841
Creators: name: K. J. Morton
Publisher: name: Zenodo
Year: 1924
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Libellulidae
Sympetrum
Sympetrum meridionale

description: Sympetrum meridionale Selys. Palestine: i n great numbers in the Kishon Marshes in May; also at Nazareth, Barraud. Syria: Antioche and Beirut, Selys.
description: Published as part of K. J. Morton, 1924, The Dragon-flies (Odonata) of Palestine, based primarily on collection made by Dr. P. A. Buxton, with Notes on the Species of the Adjacent Regions., pp. 25-44 in Transactions of the Entomological Society of London 1924 on page 43, DOI: 10.5281/zenodo.3539379
Molecular mechanism of cyclic nucleotide action on HCN pacemaker channels
Creators: name: Ng, Leo Chun Ting
Publisher: name: University of British Columbia
Year: 2017

description: HCN pacemaker channels generate the “funny” current that is responsible for initiation and regulation of electrical activity in the heart and the nervous system. Activated near resting membrane potentials, the channel conducts a net inward current that maintains action potential. The direct binding of cyclic AMP upon adrenaline release also enhances channel opening, leading to an increased frequency of action potential. The cytoplasmic cAMP-binding domain is coupled to the C-linker found between the binding domain and the transmembrane domain, subsequently triggering the opening of the pore. Despite extensive research, the mechanism that links the binding event to channel facilitation is still unclear. In this thesis, we looked into the different aspects of the missing link. In addition to basic understanding, the significance of learning about HCN channel modulation by cAMP is that there may be therapeutic advantage of controlling heart rate via drug interaction with the cyclic nucleotide binding pocket. Using the isolated C-linker/binding domain, we pinpointed residues in the binding pocket that contribute to strong affinity and ligand specificity by single residue alanine-scanning and isothermal titration calorimetry for measurement of binding affinity. By comparing our binding data to functional measurements of potency in full-length channels containing the same single substitutions, we found that two residues, L633 and I636, reduced potency more severely than affinity when mutated, and proposed that these residues are involved in a post-binding transition event. We also found that two partial agonists, cCMP and cIMP, bound to the canonical site, but failed to fully promote tetrameric gating ring which is found on the inner side of the pore and hypothesized to facilitate its opening. We proposed that the weakened interactions between the partial agonists and the C-helix of the binding domain limit the formation of the gating ring and led to reduced facilitation of opening in the full-length channel. Finally, we elucidated the mechanism behind two disease-associated mutations found in the cytosolic C-linker/binding domain portion of the HCN2 and HCN4 channels to gain a better understanding of how they influence cAMP binding and channel opening, and cause epilepsy and profound bradycardia, respectively.
Invariance of the jacobian Newton diagram
Creators: name: Gwozdziewicz, Janusz
Publisher: name: arXiv
Year: 2011
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We prove that the jacobian Newton diagram of the holomorphic mapping $(f,g):(C^2,0)\to(C^2,0)$ depends only on the equisingularity class of the pair of curves $f=0$ and $g=0$.
description: 2 figures
Separation of trajectories and its Relation to Entropy for Intermittent Systems with a Zero Lyapunov exponent
Creators: name: Korabel, Nickolay
name: Barkai, Eli
Publisher: name: arXiv
Year: 2010
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: One dimensional intermittent maps with stretched exponential separation of nearby trajectories are considered. When time goes infinity the standard Lyapunov exponent is zero. We investigate the distribution of $λ_α= \sum_{i=0}^{t-1} \ln \left| M'(x_i) \right|/t^α$, where $α$ is determined by the nonlinearity of the map in the vicinity of marginally unstable fixed points. The mean of $λ_α$ is determined by the infinite invariant density. Using semi analytical arguments we calculate the infinite invariant density for the Pomeau-Manneville map, and with it obtain excellent agreement between numerical simulation and theory. We show that $α\left< λ_α\right>$ is equal to Krengel's entropy and to the complexity calculated by the Lempel-Ziv compression algorithm. This generalized Pesin's identity shows that $\left< λ_α\right>$ and Krengel's entropy are the natural generalizations of usual Lyapunov exponent and entropy for these systems.
description: 12 pages, 10 figures
Sympetrum striolatum Charpentier 1840
Creators: name: K. J. Morton
Publisher: name: Zenodo
Year: 1924
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Libellulidae
Sympetrum
Sympetrum striolatum

description: See above under S. decoloratum.
description: Published as part of K. J. Morton, 1924, The Dragon-flies (Odonata) of Palestine, based primarily on collection made by Dr. P. A. Buxton, with Notes on the Species of the Adjacent Regions., pp. 25-44 in Transactions of the Entomological Society of London 1924 on page 43, DOI: 10.5281/zenodo.3539379
Supersymmetric classical cosmology
Creators: name: Escamilla-Rivera, Celia
name: Obregon, Octavio
name: Urena-Lopez, L. Arturo
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In this work a supersymmetric cosmological model is analyzed in which we consider a general superfield action of a homogeneous scalar field supermultiplet interacting with the scale factor in a supersymmetric FRW model. There appear fermionic superpartners associated with both the scale factor and the scalar field, and classical equations of motion are obtained from the super-Wheeler-DeWitt equation through the usual WKB method. The resulting supersymmetric Einstein-Klein-Gordon equations contain extra radiation and stiff matter terms, and we study their solutions in flat space for different scalar field potentials. The solutions are compared to the standard case, in particular those corresponding to the exponential potential, and their implications for the dynamics of the early Universe are discussed in turn.
description: 9 pages, 4 eps figures, uses RevTex
A background free double beta decay experiment
Creators: name: Giomataris, Ioannis
Publisher: name: arXiv
Year: 2010
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a new detection scheme for rejecting backgrounds in neutrino less double beta decay experiments. It relies on the detection of Cherenkov light emitted by electrons in the MeV region. The momentum threshold is tuned to reach a good discrimination between background and good events. We consider many detector concepts and a range of target materials. The most promising is a high-pressure 136Xe emitter for which the required energy threshold is easily adjusted. Combination of this concept and a high pressure Time Projection Chamber could provide an optimal solution. A simple and low cost effective solution is to use the Spherical Proportional Counter that provides two delayed signals from ionization and Cherenkov light. In solid-state double beta decay emitters, because of their higher density, the considered process is out of energy range. An alternative solution could be the development of double decay emitters with lower density by using for instance the aerogel technique. It is surprising that a technology used for particle identification in high-energy physics becomes a powerful tool for rejecting backgrounds in such low-energy experiments.
Sympetrum fonscolombei Selys 1840
Creators: name: K. J. Morton
Publisher: name: Zenodo
Year: 1924
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Libellulidae
Sympetrum
Sympetrum fonscolombei

description: Sympetrum fonscolombei Selys. Jerusalem, ♀, 19.v.22. Beirut, Alexandrette, and other localities in Asia Minor, Selys.
description: Published as part of K. J. Morton, 1924, The Dragon-flies (Odonata) of Palestine, based primarily on collection made by Dr. P. A. Buxton, with Notes on the Species of the Adjacent Regions., pp. 25-44 in Transactions of the Entomological Society of London 1924 on page 43, DOI: 10.5281/zenodo.3539379
Additional file 2 of Is there variation in utilization of preoperative tests among patients undergoing total hip and knee replacement in the US, and does it affect outcomes? A population-based analysis
Creators: name: Hasan, Mohamed Mosaad
name: Kang, Raymond
name: Lee, Jungwha
name: Beal, Matthew D.
name: Ahmed, Abdalrahman G.
name: Tian, Yao
name: Ghomrawi, Hassan M. K.
Publisher: name: figshare
Year: 2022
Subjects: Medicine
Science Policy

description: Additional file 2. Multi-variable Regression with a Hospital-level Random Effect for Patients without comorbidities.
Tunable Magnonic Frequency and Damping in [Co/Pd]8 Multilayers with Variable Co Layer Thickness
Creators: name: Pal, S.
name: Rana, B.
name: Hellwig, O.
name: Thomson, T.
name: Barman, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report the experimental observation of collective picosecond magnetization dynamics in [Co/Pd]8 multilayers with perpendicular magnetic anisotropy. The precession frequency shows large and systematic variation from about 5 GHz to about 90 GHz with the decrease in the Co layer thickness from 1.0 nm to 0.22 nm due to the linear increase in the perpendicular magnetic anisotropy. The damping coefficient 'alpha' is found to be inversely proportional to the Co layer thickness and a linear relation between the perpendicular magnetic anisotropy and 'alpha' is established. We discuss the possible reasons behind the enhanced damping as the d-d hybridization at the interface and spin pumping. These observations are significant for the applications of these materials in spintronics and magnonic crystals.
Preliminaries to an investigation of reduced product set finance
Creators: name: Bergstra, J. A.
name: Middelburg, C. A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Finance (q-fin.GN)
subject: FOS: Economics and business

description: Principles of financial product synthesis from a few basic financial products constitute an interesting research topic inspired by Islamic finance. We make an effort to answer general questions that should be answered before starting to investigate the main issues concerning this topic with the formalization of financial products and principles of financial product synthesis. We also outline the outcome of some preparatory explorations, which have been conducted with the purpose to form a reasonable preliminary picture of the details of financial products that are relevant to the study of the principles of financial product synthesis.
description: 32 pages
A pursuit of sequence specific RNase A mimicking DNAzymes
Creators: name: Wang, Yajun
Publisher: name: University of British Columbia
Year: 2017

description: DNAzymes are single-stranded DNA molecules capable of catalysis, and they are the DNA counterparts of ribozymes and protein enzymes. M²⁺-independent RNA cleaving DNAzymes are intriguing due to their robust activity that is not compromised by low Mg²⁺ that is found in cells. Hence, they hold great promise for RNA regulation in vivo. To mimic the metal independent protein endonuclease RNase A, three chemically modified nucleotides dAimTP, dCaaTP, and dUgaTP, that are adorned with respective side-chain functionalities of histidine, lysine, and arginine, have been simultaneously introduced in in vitro selections by our group, and led to the development of families of M²⁺-independent DNAzymes targeting chimeric DNA/RNA substrates, attaining kobs as high as ~0.6 min-¹ at pH 7.4, 37°C. In order to further select such DNAzymes capable of highly efficient all-RNA cleavage and multiple-turnover, a novel unimolecular selection scheme containing an all-RNA substrate derived from the HIV-1 LTR-promoter allows a direct selection of all-RNA cleavers meanwhile fostering the subsequent conversion of the cis-cleaving species into a trans-acting catalyst was constructed. An optimized in vitro selection cycle combining selection, re-selection, and evolution that permitted greater sequence space sampling and pursuit of catalytically improved sequences through generation-specific mutagenesis was designed. The application of the novel construct in the optimized in vitro selection cycle gave rise to two families of desired DNAzyme candidates. Under simulated physiological conditions (pH 7.45, 150 mM K⁺, 0.5 mM Mg²⁺, 37°C), the best representative, Dz7-38-32t, attained kcat and KM values of ~0.24 min-¹ and 2.72 µM, respectively, corresponding to a catalytic efficiency of ~10⁵ M-¹min-¹. Dz7-38-32 can be spontaneously taken up by HeLa cells after 45 h incubation at 0.9 µM due to its similarity to cell penetrating peptides (CPPs) regarding the appended functionalities. To understand fundamental aspects by which these three modified bases function in in vitro selection, investigations of biophysical and enzymatic properties of them in the context of discretely modified oligonucleotides were performed. These studies identified certain shortcomings in the use of modified nucleosides while providing clear evidence of negligible mutagenicity in terms of both primer extension and enzymatic read-through.
L'illusione della reincarnazione
Creators: name: Baroetto, Giuseppe
Publisher: name: Zenodo
Year: 2015

description: Milindapañha:
 Il re disse: «Dove non c’è trasmigrazione, Nāgasena, può esserci rinascita?”.
 «Sì, può esserci [rinascita]».
 «Ma com’è possibile? Fate un esempio».
 «Immaginate che un uomo, o re, accenda un lume tramite un altro lume: si può dire che uno tra­smigri dall’altro o nell’altro?».
 «Certamente no».
 «Proprio così, grande re, c’è rinascita senza trasmigrazione».
description: La precedente versione V1 era l'articolo pubblicato in Hans Thomas Hakl (ed.), Octagon: The Quest for Wholeness, Vol. 2 (Gaggenau: scientia nova, 2016), pp. 265-272.
Sympetrum sanguineum Muller 1764
Creators: name: K. J. Morton
Publisher: name: Zenodo
Year: 1924
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Libellulidae
Sympetrum
Sympetrum sanguineum

description: Sympetrum sanguineum 0. F. Muller. Lake Huleh, ♂, 24.v.22.
description: Published as part of K. J. Morton, 1924, The Dragon-flies (Odonata) of Palestine, based primarily on collection made by Dr. P. A. Buxton, with Notes on the Species of the Adjacent Regions., pp. 25-44 in Transactions of the Entomological Society of London 1924 on page 43, DOI: 10.5281/zenodo.3539379
On minimal colorings without monochromatic solutions to a linear equation
Creators: name: Alexeev, Boris
name: Fox, Jacob
name: Graham, Ron
Publisher: name: arXiv
Year: 2010
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05D10, 11B75

description: For a ring R and system L of linear homogeneous equations, we call a coloring of the nonzero elements of R minimal for L if there are no monochromatic solutions to L and the coloring uses as few colors as possible. For a rational number q and positive integer n, let E(q,n) denote the equation $\sum_{i=0}^{n-2} q^{i}x_i = q^{n-1}x_{n-1}$. We classify the minimal colorings of the nonzero rational numbers for each of the equations E(q,3) with q in {3/2,2,3,4}, for E(2,n) with n in {3,4,5,6}, and for x_1+x_2+x_3=4x_4. These results lead to several open problems and conjectures on minimal colorings.
description: 14 pages, 1 very complicated table. This article originally appeared in the journal INTEGERS in 2007. This version differs from that journal version only in formatting. As such, note that the author contact info is outdated and at least one conjecture contained within has been resolved
LGBTQ2+ experiences of public safety in the urban form : bringing queer and trans voices into creating safe inclusive communities
Creators: name: Roberton, Jen
Publisher: name: University of British Columbia
Year: 2016

description: The Master’s thesis, “LGBTQ2+ Experience of Public Safety in the Urban Form”, seeks to find out how LGBTQ2+ inclusive cities can be planned and designed. Geographies of identity around visibility and passing are used to frame perceived safety in public spaces. Using the City of Toronto as a case study, the thesis unpacks the current state of perceived and experienced public safety as articulated by LGBTQ2+ people. Focus groups, interviews, an online survey and secondary readings are the data sources used. Quantitative and qualitative data on hate crimes and discrimination in Toronto are also triangulated to contextualize queer and trans experiences of harassment, physical assault, discrimination, microaggressions, verbal harassment and sexualized violence. This study challenges conventional feminist safety planning and the concept of normal/abnormal uses espoused by proponents of Crime Prevention Through Environmental Design (CPTED) by bringing queer intersectionality to the forefront of discussion. Recommendations stemming from the collected data include sensitivity and inclusivity training for authority figures, poster campaigns on inclusivity, gender neutral bathrooms, better programming, and the breakdown of systemic barriers faced by LGBTQ2+ communities.
Maple syrup urine disease
Creators: name: Andrade, Luisa
Publisher: name: EURORAD
Year: 2014
Subjects: subject: Neuroradiology brain
subject: MR
subject: MR-Diffusion/Perfusion
subject: MR-Spectroscopy
subject: Diagnostic procedure
subject: Metabolic disorders

description: Clinical History Image Findings Discussion Find Diagnosis Differential Diagnosis
description: male, 21 years
description: Clinical History: A 21-year-old male patient presented with acute onset of diplopia and severe headaches. Neurological examination revealed mild bilateral papilloedema, dysarthria, ataxia. Final Diagnosis: Maple Syrup urine disease
คณิต คิดเชื่อมโยง : กิจกรรมการเรียนรู้ เรื่อง ลำดับ
Creators: name: เมธาสิทธิ์ ธัญรัตนศรีสกุล
Publisher: name: วารสารคณิตศาสตร์ โดย สมาคมคณิตศาสตร์แห่งประเทศไทย ในพระบรมราชูปถัมภ์
Year: 2020
Subjects: ลำดับ
การเชื่อมโยงทางคณิตศาสตร์
การจัดการเรียนรู้คณิตศาสตร์

description: วารสารคณิตศาสตร์ โดย สมาคมคณิตศาสตร์แห่งประเทศไทย ในพระบรมราชูปถัมภ์, 65, 702, 1 - 10
Optimal Error Estimates of Galerkin Finite Element Methods for Stochastic Partial Differential Equations with Multiplicative Noise
Creators: name: Kruse, Raphael
Publisher: name: arXiv
Year: 2011
Subjects: subject: Numerical Analysis (math.NA)
subject: Analysis of PDEs (math.AP)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60H15, 65C30, 65M60, 65M70

description: We consider Galerkin finite element methods for semilinear stochastic partial differential equations (SPDEs) with multiplicative noise and Lipschitz continuous nonlinearities. We analyze the strong error of convergence for spatially semidiscrete approximations as well as a spatio-temporal discretization which is based on a linear implicit Euler-Maruyama method. In both cases we obtain optimal error estimates. The proofs are based on sharp integral versions of well-known error estimates for the corresponding deterministic linear homogeneous equation together with optimal regularity results for the mild solution of the SPDE. The results hold for different Galerkin methods such as the standard finite element method or spectral Galerkin approximations.
description: 30 pages
Trithemis arteriosa Burmeister 1839
Creators: name: K. J. Morton
Publisher: name: Zenodo
Year: 1924
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Libellulidae
Trithemis
Trithemis arteriosa

description: Jaffa,  ♂. ♂, 16.v.22. Haunting a concrete tank (Buxton). Beirut, Selys. Over the whole African Continent between Algeria and Natal, Canary Islands, Socotra and Comoro Islands.
description: Published as part of K. J. Morton, 1924, The Dragon-flies (Odonata) of Palestine, based primarily on collection made by Dr. P. A. Buxton, with Notes on the Species of the Adjacent Regions., pp. 25-44 in Transactions of the Entomological Society of London 1924 on page 43, DOI: 10.5281/zenodo.3539379
The lower limits of disc fragmentation and the prospects for observing fragmenting discs
Creators: name: Stamatellos, Dimitris
name: Maury, Anaelle
name: Whitworth, Anthony
name: Andre, Philippe
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: A large fraction of brown dwarfs and low-mass H-burning stars may form by gravitational fragmentation of protostellar discs. We explore the conditions for disc fragmentation and we find that they are satisfied when a disc is large enough (>100 AU) so that its outer regions can cool efficiently, and it has enough mass to be gravitationally unstable, at such radii. We perform radiative hydrodynamic simulations and show that even a disc with mass 0.25 Msun and size 100 AU fragments. The disc mass, radius, and the ratio of disc-to-star mass (Mdisc/Mstar~0.36) are smaller than in previous studies. We find that fragmenting discs decrease in mass and size within a few 10^4 yr of their formation, since a fraction of their mass, especially outside 100 AU is consumed by the new stars and brown dwarfs that form. Fragmenting discs end up with masses ~0.001-0.1 Msun, and sizes ~20-100 AU. On the other hand, discs that are marginally stable live much longer. We produce simulated images of fragmenting discs and find that observing discs that are undergoing fragmentation is possible using current (e.g. IRAM-PdBI) and future (e.g. ALMA) interferometers, but highly improbable due to the short duration of this process. Comparison with observations shows that many observed discs may be remnants of discs that have fragmented at an earlier stage. However, there are only a few candidates that are possibly massive and large enough to currently be gravitationally unstable. The rarity of massive (>0.2 Msun), extended (>100 AU) discs indicates either that such discs are highly transient (i.e. form, increase in mass becoming gravitationally unstable due to infall of material from the surrounding envelope, and quickly fragment), or that their formation is suppressed (e.g. by magnetic fields). We conclude that current observations of early-stage discs cannot exclude the mechanism of disc fragmentation.
description: To appear in MNRAS. Full resolution paper available at http://www.astro.cardiff.ac.uk/pub/Dimitrios.Stamatellos/Publications
Radiation-Hydrodynamic Models of the evolving Circumstellar Medium around Massive Stars
Creators: name: Toalá, J. A.
name: Arthur, S. J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We study the evolution of the interstellar and circumstellar media around massive stars (M > 40M_{\odot}) from the main sequence through to the Wolf-Rayet stage by means of radiationhydrodynamic simulations. We use publicly available stellar evolution models to investigate the different possible structures that can form in the stellar wind bubbles around Wolf-Rayet stars. We find significant differences between models with and without stellar rotation, and between models from different authors. More specifically, we find that the main ingredients in the formation of structures in the Wolf-Rayet wind bubbles are the duration of the Red Supergiant (or Luminous Blue Variable) phase, the amount of mass lost, and the wind velocity during this phase, in agreement with previous authors. Thermal conduction is also included in our models. We find that main-sequence bubbles with thermal conduction are slightly smaller, due to extra cooling which reduces the pressure in the hot, shocked bubble, but that thermal conduction does not appear to significantly influence the formation of structures in post-main-sequence bubbles. Finally, we study the predicted X-ray emission from the models and compare our results with observations of the Wolf-Rayet bubbles S\,308, NGC\,6888, and RCW\,58. We find that bubbles composed primarily of clumps have reduced X-ray luminosity and very soft spectra, while bubbles with shells correspond more closely to observations.