cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Toward Metal-Organic Framework Design by Quantum Computing
Creators: name: Sayar Dogahe, Kourosh
name: Sarac, Tamara
name: De Smedt, Delphine
name: Bertels, Koen
Publisher: name: Zenodo
Year: 2023

description: We present a hybrid quantum-classical method for calculating Potential Energy Surface scans using quantum computers, which are essential for designing Metal-Organic Frameworks for Direct Air Capture applications. The results demonstrate, at a small scale, the potential advantage of quantum computing-based models. We aimed to define relevant classical computing model references for method benchmarking. The most important benefits of using the (PISQ) Perfect Intermediate Scale Quantum approach for hybrid quantum-classical computational model development and assessment are demonstrated. To investigate that, a quantum computing-based energy calculation model was constructed following the PISQ approach and a comparison of perfect and physical qubit-based implementations by Variational Quantum Eigensolver (VQE) algorithm was made in parallel with classical methods including RHF, CCSD, and CASCI computations. The potential of quantum computing has been demonstrated through well agreement of VQE-perfect qubits results with CASCI as the reference. However, an attempt to scale up the model to involve more molecular orbitals and hardware implementation revealed drawbacks of current quantum computing: low number of qubits available, erroneous behavior of qubits, and algorithm design challenges. Perfect qubit-based simulation proved to be a valuable approach to perform model evaluation. In addition, VQE-perfect qubits results were used to parameterize VQE-physical qubits implementation, which shortens hardware runtimes. Perfect qubit simulation was used to draft a pathway toward modeling 3D and full unit cell PES scans.
Neoplatynaspis Poorani
Creators: name: Poorani, J.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Coccinellidae
Neoplatynaspis

description: Genus­ Neoplatynaspis Poorani,­gen.­nov.
1.­­ nataliae Poorani,­sp.­nov.
Distribution: India (Meghalaya).
description: Published as part of Poorani, J., 2023, A review of Platynaspini (Coleoptera: Coccinellidae) of the Indian subcontinent, including description of a new genus from north-eastern India and Bangladesh, pp. 301-328 in Zootaxa 5256 (4) on page 325, DOI: 10.11646/zootaxa.5256.4.1, http://zenodo.org/record/7755142
A hyperbolic tetrad formulation of the Einstein equations for numerical relativity
Creators: name: Buchman, L. T.
name: Bardeen, J. M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The tetrad-based equations for vacuum gravity published by Estabrook, Robinson, and Wahlquist are simplified and adapted for numerical relativity. We show that the evolution equations as partial differential equations for the Ricci rotation coefficients constitute a rather simple first-order symmetrizable hyperbolic system, not only for the Nester gauge condition on the acceleration and angular velocity of the tetrad frames considered by Estabrook et al., but also for the Lorentz gauge condition of van Putten and Eardley, and for a fixed gauge condition. We introduce a lapse function and a shift vector to allow general coordinate evolution relative to the timelike congruence defined by the tetrad vector field.
description: Eqs. (59), (B3), (B4), and (B5) have been corrected (multiplied by -1). Two typos have been fixed, and citations have been removed from the abstract
Design of hybrid goethite nanocomposites as potential sorbents for lanthanum from aqueous media
Creators: name: Moubarak A. Sayed
name: H. F. Aly
name: H. H. Mahmoud
name: S. M. Abdelwahab
name: A. I. Helal
name: Wilson, Lee D.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified

description: Nano-goethite (NG) was synthesized using a co-precipitation method, where the surface of NG was modified by composite formation with activated carbon and sodium alginate, respectively, to increase adsorption capacity. The adsorption process of La(III) was optimized at defined conditions: pH 5.0, contact time 6.0 h, sorbent dosage (0.1 g/20 ml) and an initial La3+concentration (500 ppm). The maximum La(III) adsorption capacity (mg/g) was determined using the Sips model, as follows: pristine NG (49.5), activated carbon modified goethite: GAC-2 (44.0) and GAC-1 (56.8), and sodium alginate modified goethite: GSA-1 (63.9) and GSA-2 (77.8). The kinetic uptake profiles of La3+ were described by pseudo first order model. The sorbents can be classified according to their relative adsorption capacity, as follows: GSA-2 > GSA-1 > GAC-1 > NG > GAC-2.
Uniform approximations for pitchfork bifurcation sequences
Creators: name: Kaidel, J.
name: Brack, M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: In non-integrable Hamiltonian systems with mixed phase space and discrete symmetries, sequences of pitchfork bifurcations of periodic orbits pave the way from integrability to chaos. In extending the semiclassical trace formula for the spectral density, we develop a uniform approximation for the combined contribution of pitchfork bifurcation pairs. For a two-dimensional double-well potential and the familiar Hénon-Heiles potential, we obtain very good agreement with exact quantum-mechanical calculations. We also consider the integrable limit of the scenario which corresponds to the bifurcation of a torus from an isolated periodic orbit. For the separable version of the Hénon-Heiles system we give an analytical uniform trace formula, which also yields the correct harmonic-oscillator SU(2) limit at low energies, and obtain excellent agreement with the slightly coarse-grained quantum-mechanical density of states.
description: LaTeX, 31 pp., 18 figs. Version (v3): correction of several misprints
MOESM1 of Longitudinal trajectories of comorbid PTSD and depression symptoms among U.S. service members and veterans
Creators: name: Armenta, Richard
name: Walter, Kristen
name: Geronimo-Hara, Toni
name: Porter, Ben
name: Stander, Valerie
name: LeardMann, Cynthia
Publisher: name: figshare
Year: 2019
Subjects: subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1: Figure S1. Joint trajectories of comorbid posttraumatic stress disorder (PTSD) and major depressive disorder (MDD) adjusted for covariates in the model removing overlapping items from the PCL-C (Loss of interest in things that you used to enjoy; Having difficulty concentrating; Trouble falling or staying asleep) and PHQ-8 (Little interest or pleasure in doing things; Trouble falling or staying asleep, or sleeping too much; Trouble concentrating on things, such as reading the newspaper or watching television). Black indicates trajectories for MDD and Grey indicates trajectories for PTSD. All participants screened positive for comorbid PTSD/MDD at time 1. Each time point is approximately 3â€‰years apart.
Platynaspis angulimaculata Mader
Creators: name: Poorani, J.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Coccinellidae
Platynaspis
Platynaspis angulimaculata

description: 1.­­ angulimaculata Mader,­1938
Distribution: Nepal (Canepari, 2003); Thailand; China.
description: Published as part of Poorani, J., 2023, A review of Platynaspini (Coleoptera: Coccinellidae) of the Indian subcontinent, including description of a new genus from north-eastern India and Bangladesh, pp. 301-328 in Zootaxa 5256 (4) on page 325, DOI: 10.11646/zootaxa.5256.4.1, http://zenodo.org/record/7755142
Stationary State Degeneracy of Open Quantum Systems with Non-Abelian Symmetries
Creators: name: Zhang, Zhao
name: Tindall, Joseph
name: Mur-Petit, Jordi
name: Jaksch, Dieter
name: Buča, Berislav
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We study the null space degeneracy of open quantum systems with multiple non-Abelian, strong symmetries. By decomposing the Hilbert space representation of these symmetries into an irreducible representation involving the direct sum of multiple, commuting, invariant subspaces we derive a tight lower bound for the stationary state degeneracy. We apply these results within the context of open quantum many-body systems, presenting three illustrative examples: a fully-connected quantum network, the XXX Heisenberg model and the Hubbard model. We find that the derived bound, which scales at least cubically in the system size the $SU(2)$ symmetric cases, is often saturated. Moreover, our work provides a theory for the systematic block-decomposition of a Liouvillian with non-Abelian symmetries, reducing the computational difficulty involved in diagonalising these objects and exposing a natural, physical structure to the steady states - which we observe in our examples.
description: 19 pages, 3 figures, 3 tables
From Molecular Cores to Planet-forming Disks: A SIRTF Legacy Program
Creators: name: Evans, Neal J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Crucial steps in the formation of stars and planets can be studied only at mid-infrared to far-infrared wavelengths, where SIRTF provides an unprecedented improvement in sensitivity. We will use all three SIRTF instruments (IRAC, MIPS, and IRS) to observe sources that span the evolutionary sequence from molecular cores to protoplanetary disks, encompassing a wide range of cloud masses, stellar masses, and star-forming environments. In addition to targeting about 150 known compact cores, we will survey with IRAC and MIPS (3.6 to 70 micron) the entire areas of five of the nearest large molecular clouds for new candidate protostars and substellar objects as faint as 0.001 solar luminosities. We will also observe with IRAC and MIPS about 190 systems likely to be in the early stages of planetary system formation(ages up to about 10 Myr), probing the evolution of the circumstellar dust, the raw material for planetary cores. Candidate planet-forming disks as small as 0.1 lunar masses will be detectable. Spectroscopy with IRS of new objects found in the surveys and of a select group of known objects will add vital information on the changing chemical and physical conditions in the disks and envelopes. The resulting data products will include catalogs of thousands of previously unknown sources, multiwavelength maps of about 20 square degrees of molecular clouds, photometry of about 190 known young stars, spectra of at least 170 sources, ancillary data from ground-based telescopes, and new tools for analysis and modeling. These products will constitute the foundations for many follow-up studies with ground-based telescopes, as well as with SIRTF itself and other space missions such as SIM, JWST, Herschel, and TPF.
description: (22 pages, 10 figures, PASP in press)
Covariant Bethe-Salpeter approximation in strongly correlated electron systems model
Creators: name: Fan, Zhenhao
name: Sun, Zhipeng
name: Li, Dingping
name: Berenstein, Itzhak
name: Leshem, Guy
name: Rosenstein, Baruch
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Strongly correlated electron systems are generally described by tight binding lattice Hamiltonians with strong local (on site) interactions, the most popular being the Hubbard model. Although the half filled Hubbard model can be simulated by Monte Carlo(MC), physically more interesting cases beyond half filling are plagued by the sign problem. One therefore should resort to other methods. It was demonstrated recently that a systematic truncation of the set of Dyson-Schwinger equations for correlators of the Hubbard, supplemented by a \textquotedblleft covariant" calculation of correlators leads to a convergent series of approximants. The covariance preserves all the Ward identities among correlators describing various condensed matter probes. While first order (classical), second (Hartree-Fock or gaussian) and third (Cubic) covariant approximation were worked out, the fourth (quartic) seems too complicated to be effectively calculable in fermionic systems. It turns out that the complexity of the quartic calculation\ in local interaction models,is manageable computationally. The quartic (Bethe - Salpeter type) approximation is especially important in 1D and 2D models in which the symmetry broken state does not exists (the Mermin - Wagner theorem), although strong fluctuations dominate the physics at strong coupling. Unlike the lower order approximations, it respects the Mermin - Wagner theorem. The scheme is tested and exemplified on the single band 1D and 2D Hubbard model.
description: 20 pages, 4 figures
Mechanosensitive membrane probes: push-pull papillons
Creators: name: Heorhii V. Humeniuk
name: Licari, Giuseppe
name: Vauthey, Eric
name: Sakai, Naomi
name: Matile, Stefan
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified

description: Design, synthesis and evaluation of push-pull N,N′-diphenyl-dihydrodibenzo[a,c]phenazines are reported. Consistent with theoretical predictions, donors and acceptors attached to the bent mechanophore are shown to shift absorption maxima to either red or blue, depending on their positioning in the chromophore. Redshifted excitation of push-pull fluorophores is reflected in redshifted emission of both bent and planar excited states. The intensity ratios of the dual emission in more and less polar solvents imply that excited-state (ES) planarization decelerates with increasing fluorophore macrodipole, presumably due to attraction between the wings of closed papillons. ES planarization of highly polarisable papillons is not observed in lipid bilayer membranes. All push-pull papillon amphiphiles excel with aggregation-induced emission (AIE) from bent ES as micelles in water and mechanosensitivity in viscous solvents. They are not solvatochromic and only weakly fluorescent (QY < 4%).
Memories in the Photoluminescence Intermittency of Single Cesium Lead Bromide Nanocrystals
Creators: name: Hou, Lei
name: Zhao, Chen
name: Yuan, Xi
name: Zhao, Jialong
name: Krieg, Franziska
name: Tamarat, Philippe
name: Kovalenko, Maksym V.
name: Guo, Chunlei
name: Lounis, Brahim
Publisher: name: arXiv
Year: 2019
Subjects: subject: Applied Physics (physics.app-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Single cesium lead bromide (CsPbBr3) nanocrystals show strong photoluminescence blinking, with on- and off- dwelling times following power-law distributions. We investigate the memory effect in the photoluminescence blinking of single CsPbBr3 nanocrystals and find positive correlations for successive on-times and successive off-times. This memory effect is not sensitive to the nature of the surface capping ligand and the embedding polymer. These observations suggest that photoluminescence intermittency and its memory are mainly controlled by intrinsic traps in the nanocrystals. These findings will help optimizing light-emitting devices based on inorganic perovskite nanocrystals.
Platynaspis flavoguttata
Creators: name: Poorani, J.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Coccinellidae
Platynaspis
Platynaspis flavoguttata

description: 2.­­ flavoguttata (Gorham,­1894)
Distribution: India: Karnataka (Belgaum). Myanmar.
description: Published as part of Poorani, J., 2023, A review of Platynaspini (Coleoptera: Coccinellidae) of the Indian subcontinent, including description of a new genus from north-eastern India and Bangladesh, pp. 301-328 in Zootaxa 5256 (4) on page 325, DOI: 10.11646/zootaxa.5256.4.1, http://zenodo.org/record/7755142
On mapping properties of the general relativistic constraints operator in weighted function spaces, with applications
Creators: name: Chrusciel, Piotr T.
name: Delay, Erwann
Publisher: name: arXiv
Year: 2003
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Generalising an analysis of Corvino and Schoen, we study surjectivity properties of the constraint map in general relativity in a large class of weighted Sobolev spaces. As a corollary we prove several perturbation, gluing, and extension results: we show existence of non-trivial, singularity-free, vacuum space-times which are stationary in a neighborhood of $i^0$; for small perturbations of parity-covariant initial data sufficiently close to those for Minkowski space-time this leads to space-times with a smooth global Scri; we prove existence of initial data for many black holes which are exactly Kerr -- or exactly Schwarzschild -- both near infinity and near each of the connected components of the apparent horizon; under appropriate conditions we obtain existence of vacuum extensions of vacuum initial data across compact boundaries; we show that for generic metrics the deformations in the Isenberg-Mazzeo-Pollack gluings can be localised, so that the initial data on the connected sum manifold coincide with the original ones except for a small neighborhood of the gluing region; we prove existence of asymptotically flat solutions which are static or stationary up to $r^{-m}$ terms, for any fixed $m$, and with multipole moments freely prescribable within certain ranges.
description: latex2e, now 87 pages, several style files; various typos corrected, treatment of weighted Hoelder spaces improved, to appear in Memoires de la Societe Mathematique de France
Optical Sensor Integration in Architectural Glass
Creators: name: Nategh, Shahryar
name: Belis, Jan
name: Missinne, Jeroen
Publisher: name: Zenodo
Year: 2023

description: Over the past years, size and number of glass panels in buildings increased substantially. As glass strength is known to reduce over time as a function of e.g. the load history, it is important to know its evolution over the design lifetime. In this project, the objective is to fabricate invisible optical sensors, Bragg grating waveguide (BGW), enabling monitoring of architectural glass without jeopardizing its transparency. The investigated method uses laser technology to write invisible optical sensors, able to capture both strain and temperature by modifying the bulk of the glass. Bulk modification by laser is known for glasses used at small scales in e.g. micro-electronics, but is novel for soda-lime silica glass used at large scales in construction. In addition, with a view to next generation smart facades, the technology will be implemented on the thin chemically pre-stressed glass (aluminosilicate), which is lightweight and more resistant against scratches. Afterward, the impact of the integrated sensors on the strength of the glass will be examined using some flexural tests. In the final stage of the project, two glass components, one made of soda-lime silica and the other made of thin chemically pre-stressed aluminosilicate glass, both equipped with sensors, will be tested to demonstrate the technique’s functionality.
Property Invariant Embedding for Automated Reasoning
Creators: name: Olšák, Miroslav
name: Kaliszyk, Cezary
name: Urban, Josef
Publisher: name: arXiv
Year: 2019
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: Automated reasoning and theorem proving have recently become major challenges for machine learning. In other domains, representations that are able to abstract over unimportant transformations, such as abstraction over translations and rotations in vision, are becoming more common. Standard methods of embedding mathematical formulas for learning theorem proving are however yet unable to handle many important transformations. In particular, embedding previously unseen labels, that often arise in definitional encodings and in Skolemization, has been very weak so far. Similar problems appear when transferring knowledge between known symbols. We propose a novel encoding of formulas that extends existing graph neural network models. This encoding represents symbols only by nodes in the graph, without giving the network any knowledge of the original labels. We provide additional links between such nodes that allow the network to recover the meaning and therefore correctly embed such nodes irrespective of the given labels. We test the proposed encoding in an automated theorem prover based on the tableaux connection calculus, and show that it improves on the best characterizations used so far. The encoding is further evaluated on the premise selection task and a newly introduced symbol guessing task, and shown to correctly predict 65% of the symbol names.
Ground state of two-component degenerate fermionic gases
Creators: name: Karpiuk, Tomasz
name: Brewczyk, Miroslaw
name: Rzazewski, Kazimierz
Publisher: name: arXiv
Year: 2003
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We analyze the ground state of the two--component gas of trapped ultracold fermionic atoms. We neglect the forces between atoms in the same hyperfine state (the same component). For the case when the forces between distinguishable atoms (i.e., atoms in different hyperfine states) are repulsive (positive mutual scattering length), we find the existence of critical interaction strength above which one atomic fraction expels the other from the center of the trap. When atoms from different components attract each other (negative mutual scattering length) the ground state of the system dramatically changes its structure for strong enough attraction -- the Cooper pairs built of atoms in different hyperfine states appear.
description: 10 pages, 14 figures
Simple isophthalamides/dipicolineamides as active transmembrane anion transporters
Creators: name: Picci, Giacomo
name: Carreira-Barral, Israel
name: Alonso-Carrillo, Daniel
name: Sanz-González, David
name: Fernández-López, Pablo
name: García-Valverde, María
name: Caltagirone, Claudia
name: Quesada, Roberto
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Evolutionary Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Eight N,N´-diarylisophthalamide/dipicolineamide derivatives have been synthesised and fully characterised, both in solution and in the solid state. The transmembrane anion transport properties of these compounds have been studied by chloride-selective electrode and fluorescence experiments. The substitution pattern of the aromatic moieties determines the transport properties of these systems, with those containing electron-withdrawing groups in their structures being the most active ones of the series.
Additional file 2: of Survival and prognostic analysis of preoperative inflammatory markers in patients undergoing surgical resection for laryngeal squamous cell carcinoma
Creators: name: Chen, Linyan
name: Zeng, Hao
name: Yang, Jiapeng
name: Lu, Yuqing
name: Zhang, Dan
name: Wang, Jinggan
name: Kuang, Chienyun
name: Zhu, Sha
name: Wang, Manni
name: Ma, Xuelei
Publisher: name: figshare
Year: 2018
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: Hematology

description: Table S1. The mean value of preoperative inflammatory markers by patientâ s clinicopathological characteristics (DOCX 27 kb)
Nebular vs. Stellar Wind Abundances in NGC 6543
Creators: name: Maness, H.
name: Vrtilek, S. D.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: An early analysis of Chandra observations of the planetary nebula NGC 6543 suggested that the location and the derived temperature for the X-ray emitting region is inconsistent with the abundances measured for this object (Chu et al. 2001). We revisit observations of this source (following significant updates to both the reprocessing and extraction software) in order to propose a resolution to this apparent anomaly. Our re-analysis using abundances found from observations in the infrared, optical, and ultraviolet suggests that the location and temperature of the X-ray emission from NGC 6543 is consistent with nebular abundances expected for the source.
description: PASP, accepted (August 2003 issue). 16 pages; 5 figures
Automatic Image Pixel Clustering based on Mussels Wandering Optimiz
Creators: name: Zhong, Xin
name: Shih, Frank Y.
name: Guo, Xiwang
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Image segmentation as a clustering problem is to identify pixel groups on an image without any preliminary labels available. It remains a challenge in machine vision because of the variations in size and shape of image segments. Furthermore, determining the segment number in an image is NP-hard without prior knowledge of the image content. This paper presents an automatic color image pixel clustering scheme based on mussels wandering optimization. By applying an activation variable to determine the number of clusters along with the cluster centers optimization, an image is segmented with minimal prior knowledge and human intervention. By revising the within- and between-class sum of squares ratio for random natural image contents, we provide a novel fitness function for image pixel clustering tasks. Comprehensive empirical studies of the proposed scheme against other state-of-the-art competitors on synthetic data and the ASD dataset have demonstrated the promising performance of the proposed scheme.
title: Long travel distance of landslide-induced debris flows
Creators: name: Nishiguchi, Yuki
name: Uchida, Taro
Publisher: name: Mountain Scholar
Year: 2019
Subjects: debris flow
numerical simulation
travel distance
fine sediment

description: Large-scale landslides often induce debris flows and cause serious damage to humans. These events typically have water contents in the landslide mass less than 60% and sediment concentrations more than 40%. In spite of high sediment concentrations, landslide-induced debris flows can runout long distances. For large-scale stony debris flows, many previous studies have suggested that coarse gravels behave as a solid phase, whereas fine particles with interstitial water can behave as a fluid phase. We hypothesized this fine sediment might be one of the key processes controlling the long travel distances of landslide-induced debris flows. Here we assumed that the maximum diameter of the fine sediment behave as a fluid phase should vary depending on the friction velocity of the debris flow and the settling velocity of sediments. We conducted detailed field surveys for four landslide-induced debris flows and applied our numerical simulation model to describe the travel distance of the debris flows. Our results show that, if we set the ratio of the friction velocity of debris flow to the settling velocity of sediments around 1 to 4, the simulated travel distance agreed well with our studied four debris flows. We also confirmed that, while the total volume or mean sediment diameter of debris flows varied between study cases, the variability of ratios was small. We believe that our new method and the information it provides, may be helpful for predicting the future risk from the landslide-induced debris flows.
Degradation of diazinon from aqueous solutions by electro-Fenton process: effect of operating parameters, intermediate identification, degradation pathway, and optimization using response surface methodology (RSM)
Creators: name: Heidari, Maryam
name: Vosoughi, Mehdi
name: Sadeghi, Hadi
name: Abdollah Dargahi
name: S. Ahmad Mokhtari
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: In this experimental study, the statistical response surface methodology (RSM) based Box-Behnken design (BBD) was selected for evaluation of the effect of different parameters (solution pH,H2O2 concentration, current density, and time) and their interactions on the degradation of the diazinon by electro Fenton process. The results showed that the quadratic model is suitable for the obtained data (P-value = 0.0001) and in optimal process performance conditions was set equal to 100%. Regression analysis with a high correlation coefficient (R2 = 0.9980) and the model value of 765.56 indicated the adequacy of the model. Based on the results, the electro-Fenton process is an efficient technique for removing diazinon from aqueous media.
An algebraic framework for noncommutative bundles with homogeneous fibres
Creators: name: Brzeziński, Tomasz
name: Szymański, Wojciech
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: An algebraic framework for noncommutative bundles with (quantum) homogeneous fibres is proposed. The framework relies on the use of principal coalgebra extensions which play the role of principal bundles in noncommutative geometry which might be additionally equipped with a Hopf algebra symmetry. The proposed framework is supported by two examples of noncommutative $\mathbb{C} P_q^1$-bundles: the quantum flag manifold viewed as a bundle with a generic Podleś sphere as a fibre, and the quantum twistor bundle viewed as a bundle over the quantum 4-sphere of Bonechi, Ciccoli and Tarlini.
description: 21 pages
Platynaspis khalaa
Creators: name: Poorani, J.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Coccinellidae
Platynaspis
Platynaspis khalaa

description: 3.­­ khalaa (Bielawski,­1979)
Distribution: Bhutan.
description: Published as part of Poorani, J., 2023, A review of Platynaspini (Coleoptera: Coccinellidae) of the Indian subcontinent, including description of a new genus from north-eastern India and Bangladesh, pp. 301-328 in Zootaxa 5256 (4) on page 325, DOI: 10.11646/zootaxa.5256.4.1, http://zenodo.org/record/7755142
Pseudodifferential forms and supermechanics
Creators: name: Kochan, Denis
Publisher: name: arXiv
Year: 2003
Subjects: subject: Differential Geometry (math.DG)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 58A10; 58A50

description: We investigate (pseudo)differential forms in the framework of supergeometry. Definitions, basic properties and Cartan calculus (DeRham differential, Lie derivative, inner product, Hodge operator) are presented; the symplectic supermechanics (even and odd) is formulated; and the question of quantization is discussed. In the framework of supermechanics, we investigate also classical Hamiltonian systems converting to SUSY-QM after quantization.
description: 10 pages
Complex Optical-X-ray Correlations in the Narrow-Line Seyfert 1 Galaxy NGC 4051
Creators: name: Shemmer, O.
name: Uttley, P.
name: Netzer, H.
name: McHardy, I. M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This paper presents the results of a dense and intensive X-ray and optical monitoring of the narrow-line Seyfert 1 galaxy NGC 4051 carried out in 2000. Results of the optical analysis are consistent with previous measurements. The amplitude of optical emission line variability is a factor of two larger than that of the underlying optical continuum, but part or all of the difference can be due to host-galaxy starlight contamination or due to the lines being driven by the unseen UV continuum, which is more variable than the optical continuum. We measured the lag between optical lines and continuum and found a lower, more accurate broad line region size of 3.0+-1.5 light days in this object. The implied black hole mass is M_BH=5(+6,-3)x10^5 M_sun; this is the lowest mass found, so far, for an active nucleus. We find significant evidence for an X-ray-optical (XO) correlation with a peak lag of about <1 day, although the centroid of the asymmetric correlation function reveals that part of the optical flux varies in advance of the X-ray flux by 2.4+-1.0 days. This complex XO correlation is explained as a possible combination of X-ray reprocessing and perturbations propagating from the outer (optically emitting) parts of the accretion disc into its inner (X-ray emitting) region.
description: 8 pages, 4 figures included, LaTeX mn.sty, accepted for publication in MNRAS
The one-dimensional Kardar-Parisi-Zhang and Kuramoto-Sivashinsky universality class: limit distributions
Creators: name: Roy, Dipankar
name: Pandit, Rahul
Publisher: name: arXiv
Year: 2019
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Tracy-Widom and Baik-Rains distributions appear as universal limit distributions for height fluctuations in the one-dimensional Kardar-Parisi-Zhang (KPZ) \textit{stochastic} partial differential equation (PDE). We obtain the same universal distributions in the spatiotemporally chaotic, nonequilibrium, but statistically steady state (NESS) of the one-dimensional Kuramoto-Sivashinsky (KS) \textit{deterministic} PDE, by carrying out extensive pseudospectral direct numerical simulations to obtain the spatiotemporal evolution of the KS height profile $h(x,t)$ for different initial conditions. We establish, therefore, that the statistical properties of the 1D KS PDE in this state are in the 1D KPZ universality class.
Accelerating Universe and Dynamical Compactification of Extra Dimensions
Creators: name: Darabi, F.
Publisher: name: arXiv
Year: 2003
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study a $(4+D)$-dimensional Kaluza-Klein cosmology with a Robertson-Walker type metric having two scale factors $a$ and $R$, corresponding to $D$-dimensional internal space and 4-dimensional universe, respectively. By introducing an exotic matter as the space-time part of the higher dimensional energy-momentum tensor, a 4-dimensional decaying cosmological term is appeared as $Λ\sim R^{-2}$, playing the role of an evolving dark energy in the universe. The resulting field equations yield the exponential solutions for the scale factors. These exponential behaviors may account for the dynamical compactification of extra dimensions and the accelerating expansion of the 4-dimensional universe in terms of the Hubble parameter. The acceleration of universe may be explained by the negative pressure of the exotic matter. It is shown that the rate of compactification of higher dimensions depends on the dimension, $D$. We then obtain the Wheeler-DeWitt equation and find the general exact solutions in $D$-dimensions. A good correspondence between the classical solutions and the Wheeler-DeWitt solutions, in any dimension $D$, is obtained.
description: 16 pages, 18 figures, minor adjustments, further remarks, references added
Platynaspis lewisii Crotch 1874
Creators: name: Poorani, J.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Coccinellidae
Platynaspis
Platynaspis lewisii

description: 4.­­ lewisii Crotch,­1874
Distribution: India. Myanmar. China. Japan. Taiwan.
description: Published as part of Poorani, J., 2023, A review of Platynaspini (Coleoptera: Coccinellidae) of the Indian subcontinent, including description of a new genus from north-eastern India and Bangladesh, pp. 301-328 in Zootaxa 5256 (4) on page 325, DOI: 10.11646/zootaxa.5256.4.1, http://zenodo.org/record/7755142
Platynaspis ocellimaculata Pang & Mao 1979
Creators: name: Poorani, J.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Coccinellidae
Platynaspis
Platynaspis ocellimaculata

description: 5.­­ ocellimaculata Pang­&­Mao,­1979
Distribution: Nepal. China.
description: Published as part of Poorani, J., 2023, A review of Platynaspini (Coleoptera: Coccinellidae) of the Indian subcontinent, including description of a new genus from north-eastern India and Bangladesh, pp. 301-328 in Zootaxa 5256 (4) on page 325, DOI: 10.11646/zootaxa.5256.4.1, http://zenodo.org/record/7755142
title: Międzykulturowość w przestrzeni wileńskiego pogranicza kultur. Pedagogiczne studium codzienności młodego pokolenia Polaków
Creators: name: Szerląg, Alicja
Publisher: name: Instytut Pedagogiki Uniwersytetu Wrocławskiego
Year: 2021

description: Z uwagi na wielokulturową specyfikę Wileńszczyzny przedmiot badawczej eksploracji zorientowano na odczytanie międzykulturowości w przestrzeni wileńskiego pogranicza kultur, przez pryzmat pedagogicznego studium codzienności młodego pokolenia Polaków. Owo odczytanie międzykulturowości jest istotne z kilku względów. Pozwoli mianowicie wskazać na specyfikę funkcjonowania Polaków w społeczeństwie Litwy zróżnicowanym narodowo, wykazać przestrzenie (nie)porozumienia i możliwości budowania międzykulturowej wspólnoty, określić wielokulturową codzienność młodego pokolenia Polaków oraz ich rodzin w kontekście ich poczucia narodowej przynależności oraz obywatelskości, a także – wskazać na uwarunkowania procesu konstruowania tożsamości młodego pokolenia Polaków na wileńskim pograniczu kultur oraz na jej specyfikę (ze szczególnym uwzględnieniem ich (auto)identyfikacyjnych odniesień), aby w efekcie określić jego międzykulturowy potencjał oraz międzykulturową orientację
Chiral symmetry on a lattice with hopping interactions
Creators: name: Sugihara, Takanori
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The species doubling problem of the lattice fermion is resolved by introducing hopping interactions that mix left- and right-handed fermions around the momentum boundary. Approximate chiral symmetry is realized on the lattice. The deviation of the fermion propagator from the continuum one is small.
description: 3 pages, 2 figures, talk presented at Lattice2003 (chiral fermions)
An atypical heterotrimeric Gα protein has substantially reduced nucleotide binding but retains nucleotide-independent interactions with its cognate RGS protein and Gβγ dimer
Creators: name: Lou, Fei
name: Abramyan, Tigran M.
name: Haiyan Jia
name: Tropsha, Alexander
name: Jones, Alan M.
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: Evolutionary Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Inorganic Chemistry
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: 60506 Virology
subject: Computational Biology

description: Plants uniquely have a family of proteins called extra-large G proteins (XLG) that share homology in their C-terminal half with the canonical Gα subunits; we carefully detail here that Arabidopsis XLG2 lacks critical residues requisite for nucleotide binding and hydrolysis which is consistent with our quantitative analyses. Based on microscale thermophoresis, Arabidopsis XLG2 binds GTPγS with an affinity 100 times lower than that to canonical Gα subunits. This means that given the concentration range of guanine nucleotide in plant cells, XLG2 is not likely bound by GTP in vivo. Homology modeling and molecular dynamics simulations provide a plausible mechanism for the poor nucleotide binding affinity of XLG2. Simulations indicate substantially stronger salt bridge networks formed by several key amino-acid residues of AtGPA1 which are either misplaced or missing in XLG2. These residues in AtGPA1 not only maintain the overall shape and integrity of the apoprotein cavity but also increase the frequency of favorable nucleotide-protein interactions in the nucleotide-bound state. Despite this loss of nucleotide dependency, XLG2 binds the RGS domain of AtRGS1 with an affinity similar to the Arabidopsis AtGPA1 in its apo-state and about 2 times lower than AtGPA1 in its transition state. In addition, XLG2 binds the Gβγ dimer with an affinity similar to that of AtGPA1. XLG2 likely acts as a dominant negative Gα protein to block G protein signaling. We propose that XLG2, independent of guanine nucleotide binding, regulates the active state of the canonical G protein pathway directly by sequestering Gβγ and indirectly by promoting heterodimer formation.
An absorption event in the X-ray lightcurve of NGC 3227
Creators: name: Lamer, G.
name: Uttley, P.
name: McHardy, I. M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have monitored the Seyfert galaxy NGC 3227 with the Rossi X-ray Timing Explorer (RXTE) since January 1999. During late 2000 and early 2001 we observed an unusual hardening of the 2-10 keV X-ray spectrum which lasted several months. The spectral hardening was not accompanied by any correlated variation in flux above 8 keV. We therefore interpret the spectral change as transient absorption by a gas cloud of column density 2.6 10^23 cm^-2 crossing the line of sight to the X-ray source. A spectrum obtained by XMM-Newton during an early phase of the hard-spectrum event confirms the obscuration model and shows that the absorbing cloud is only weakly ionised. The XMM-Newton spectrum also shows that ~10% of the X-ray flux is not obscured, but this unabsorbed component is not significantly variable and may be scattered radiation from a large-scale scattering medium. Applying the spectral constraints on cloud ionisation parameter and assuming that the cloud follows a Keplerian orbit, we constrain the location of the cloud to be R~10-100 light-days from the central X-ray source, and its density to be n_H~10^8cm^-3, implying that we have witnessed the eclipse of the X-ray source by a broad line region cloud.
description: 5 pages, 6 figures, accepted for publication in MNRAS letters
Platynaspis octoguttata
Creators: name: Poorani, J.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Coccinellidae
Platynaspis
Platynaspis octoguttata

description: 6.­­ octoguttata (Miyatake,­1961)
Distribution: Bhutan. China.
description: Published as part of Poorani, J., 2023, A review of Platynaspini (Coleoptera: Coccinellidae) of the Indian subcontinent, including description of a new genus from north-eastern India and Bangladesh, pp. 301-328 in Zootaxa 5256 (4) on page 325, DOI: 10.11646/zootaxa.5256.4.1, http://zenodo.org/record/7755142
Platynaspis samcha
Creators: name: Poorani, J.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Coccinellidae
Platynaspis
Platynaspis samcha

description: 7.­­ samcha (Bielawski,­1979)
Distribution: India; Bhutan.
description: Published as part of Poorani, J., 2023, A review of Platynaspini (Coleoptera: Coccinellidae) of the Indian subcontinent, including description of a new genus from north-eastern India and Bangladesh, pp. 301-328 in Zootaxa 5256 (4) on page 325, DOI: 10.11646/zootaxa.5256.4.1, http://zenodo.org/record/7755142
Ethics in medical education digital scholarship: AMEE Guide No. 134
Creators: name: Masters, Ken
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Evolutionary Biology
subject: Cancer
subject: Science Policy

description: Ethics has long been a concern in medicine, education and scholarship. In the digital age, new complexities have arisen, and many medical education researchers are unprepared for the pitfalls ahead, often negotiating these in the absence of guidelines, and unaware of the many tools that can be used to assist them. This Guide takes the medical education scholar through a journey in which issues of ethics are discussed in all stages of digital scholarship: research preparation, research subject monitoring and data gathering, securing one’s data (and balancing security against accessibility), anonymising textual and non-textual data, third party identifiability in digital data, writing one’s own work (including plagiarism and paper mills), copyright (including issues of Creative Commons and royalty-free), accessing inaccessible reference material, ethically citing electronic material, and manuscript submission (including issues of selecting journals, open access and data sharing). The Guide ends with a brief look to the future. This Guide aims to be a useful tool to alert the readers to some of the most important ethical issues that need to be considered, and some practical solutions to ethical problems faced, when engaging in medical education digital scholarship.