cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Multimodal Framework for Deepfake Detection
Creators: name: Gandhi, Kashish
name: Kulkarni, Prutha
name: Shah, Taran
name: Chaudhari, Piyush
name: Narvekar, Meera
name: Ghag, Kranti
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: The rapid advancement of deepfake technology poses a significant threat to digital media integrity. Deepfakes, synthetic media created using AI, can convincingly alter videos and audio to misrepresent reality. This creates risks of misinformation, fraud, and severe implications for personal privacy and security. Our research addresses the critical issue of deepfakes through an innovative multimodal approach, targeting both visual and auditory elements. This comprehensive strategy recognizes that human perception integrates multiple sensory inputs, particularly visual and auditory information, to form a complete understanding of media content. For visual analysis, a model that employs advanced feature extraction techniques was developed, extracting nine distinct facial characteristics and then applying various machine learning and deep learning models. For auditory analysis, our model leverages mel-spectrogram analysis for feature extraction and then applies various machine learning and deep learningmodels. To achieve a combined analysis, real and deepfake audio in the original dataset were swapped for testing purposes and ensured balanced samples. Using our proposed models for video and audio classification i.e. Artificial Neural Network and VGG19, the overall sample is classified as deepfake if either component is identified as such. Our multimodal framework combines visual and auditory analyses, yielding an accuracy of 94%.
description: 22 pages, 14 figures, Accepted in Journal of Electrical Systems
A polyhedra-based model for moving regions in databases
Creators: name: Heinz, Florian
name: Güting, Ralf Hartmut
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Space Science
subject: Genetics
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences

description: Moving objects databases store and process objects with a focus on their spatiotemporal behaviour. To achieve this, the model of the data must be suitable to efficiently store and process moving objects. Currently, a unit-based model is widely used, where each moving object is divided into one or more time intervals, during which the object behaves uniformly. This model is also used for a data type called moving regions, which resembles moving and shape changing regions as, for example, forest fires or cloud fields. However, this model struggles to support operations like union, difference or intersection of two moving regions; the resulting objects are unnecessarily bloated and uncomfortable to handle because the resulting number of units is generally very high. In this paper, an alternative model for moving regions is proposed, which is based on polyhedra. Furthermore, this work develops an isomorphism between moving regions and polyhedra including all relevant operations, which has the additional advantage that several implementations for those are already readily available; this is demonstrated by a reference implementation using the existing and well-tested Computational Geometry Algorithms Library (CGAL).
Hydrogonium croceum Jan Kucera
Creators: name: Ros, Rosa M.
name: Olaf, Susana Rams
name: Eloy, Olaf Werner
name: Cerón, Eloy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Bryopsida
Pottiales
Pottiaceae
Hydrogonium
Hydrogonium croceum

description: Hydrogonium croceum (Brid.) Jan Kučera
Barbula crocea (Brid.) F.Weber & D.Mohr
Nomenclature follows Kučera et al. (2013).
RECORDS. — Bescherelle (1882), Jelenc (1955a): Bône. Jelenc (1955a): Philippeville. Rare.
description: Published as part of Ros, Rosa M., Olaf, Susana Rams, Eloy, Olaf Werner & Cerón, Eloy, 2024, Revisiting the Bryophyte Checklist of Algeria: Exploring Diversity and Distribution, pp. 49-116 in Cryptogamie, Bryologie 20 (5) on page 82, DOI: 10.5252/cryptogamie-bryologie2024v45a5, http://zenodo.org/record/14593891
Farm Diversity and Heterogeneous Impacts of System Technologies on Yield, Income and Poverty: The System of Rice Intensification in Timor Leste
Creators: name: Noltze, Martin
name: Schwarze, Stefan
name: Qaim, Matin
name: Noltze, Martin
name: Schwarze, Stefan
name: Qaim, Matin
Publisher: name: Unknown
Year: 2012
Subjects: subject: Food Security and Poverty
subject: International Development
subject: Impact assessment
subject: endogenous switching regression
subject: system of rice intensification
subject: Timor Leste

description: Natural resource management practices, such as the System of Rice Intensification (SRI), have been proposed to tackle agricultural challenges such as decreasing productivity growth and environmental degradation. Yet, the benefits of system technologies for farmers are often debated. Impacts seem to be context-specific, which is especially relevant in the small farm sector with its large degree of agroecological and socioeconomic heterogeneity. This was not always considered in previous research. We analyze the impacts of SRI adoption on rice yield and household income among smallholder farmers in Timor Leste. Heterogeneity is accounted for in an endogenous switching regression framework. Comparing mean yield and income levels, we find no significant differences between SRI adopters and non-adopters. This is due to negative selection bias; SRI seems to be adopted more on plots and by farmers with less than average yields. Controlling for this bias reveals significant yield and income gains. Poor and non-poor households benefit from SRI adoption; small farms benefit more than larger farms. The results also suggest that SRI may not be beneficial when compared to conventional rice grown under favorable conditions and with best management practices.
Consistency relations for large-scale structure in modified gravity and the matter bispectrum
Creators: name: Crisostomi, Marco
name: Lewandowski, Matthew
name: Vernizzi, Filippo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study perturbation theory for large-scale structure in the most general scalar-tensor theories propagating a single scalar degree of freedom, which include Horndeski theories and beyond. We model the parameter space using the effective field theory of dark energy. For Horndeski theories, the gravitational field and fluid equations are invariant under a combination of time-dependent transformations of the coordinates and fields. This symmetry allows one to construct a physical adiabatic mode which fixes the perturbation-theory kernels in the squeezed limit and ensures that the well-known consistency relations for large-scale structure, originally derived in general relativity, hold in modified gravity as well. For theories beyond Horndeski, instead, one generally cannot construct such an adiabatic mode. Because of this, the perturbation-theory kernels are modified in the squeezed limit and the consistency relations for large-scale structure do not hold. We show, however, that the modification of the squeezed limit depends only on the linear theory. We investigate the observational consequences of this violation by computing the matter bispectrum. In the squeezed limit, the largest effect is expected when considering the cross-correlation between different tracers. Moreover, the individual contributions to the 1-loop matter power spectrum do not cancel in the infrared limit of the momentum integral, modifying the power spectrum on non-linear scales.
description: 19 pages, 3 figures, PRD version, minor revisions
An optical kaleidoscope using a single atom
Creators: name: Horak, P.
name: Ritsch, H.
name: Fischer, T.
name: Maunz, P.
name: Puppe, T.
name: Pinkse, P. W. H.
name: Rempe, G.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A new method to track the motion of a single particle in the field of a high-finesse optical resonator is described. It exploits near-degenerate higher-order Gaussian cavity modes, whose symmetry is broken by the phase shift on the light induced by the particle. Observation of the spatial intensity distribution behind the cavity allows direct determination of the particle's position with approximately wavelength accuracy. This is demonstrated by generating a realistic atomic trajectory using a semiclassical simulation including friction and diffusion and comparing it to the reconstructed path. The path reconstruction itself requires no knowledge about the forces on the particle.
description: 4 pages, 3 figures
Toward Ultra-high Sensitivity in Weak Value Amplification
Creators: name: Huang, Jingzheng
name: Li, Yanjia
name: Fang, Chen
name: Li, Hongjing
name: Zeng, Guihua
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Achieving higher sensitivity is an earnest purpose for precision metrology. As a response to this goal, the weak value amplification approach has been developed for measuring ultra-small physical effects, realizing sensitivity that had never been reached before. Encouraged by the successes, many efforts have been devoted to obtain ultimate sensitivity of weak value amplification. However, the benefit would be easily compromised in practice, because the cost of significant reduction on signal intensity leads to an ultra-low signal-to-noise ratio. In this work, we bridge this gap by proposing an alternative weak value amplification approach, which provides sensitivity several orders of magnitude higher than the standard approach while being compatible with practical imperfections. In the proof-of-principle experiment of measuring longitudinal phase change in time-domain, sensitivity up to $5\times10^{-4}$ attosecond is exemplified. Our approach can be applied to measure other small parameters with extremely high sensitivity, providing a new method for future precision metrology.
description: 6 pages, 4 figures. Accepted by Phys.Rev.A
Price volatility in food markets: can stock building mitigate price fluctuations?
Creators: name: Serra, Teresa
name: Gil, Jose Maria
name: Serra, Teresa
name: Gil, Jose Maria
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agricultural and Food Policy
subject: Demand and Price Analysis
subject: corn price
subject: ethanol
subject: stocks
subject: garch

description: This article studies US corn price fluctuations in the past two decades. Price volatility is explained by volatility clustering, the influence of energy prices, corn stocks and global economic conditions. A multivariate GARCH specification that allows for exogenous variables in the conditional covariance model is estimated both parametrically and semiparametrically. Findings provide evidence of price volatility transmission between ethanol and corn markets. They also suggest that macroeconomic instability can increase corn price volatility. Finally, stock building is found to significantly reduce corn price fluctuations.
Operational approach to the topological structure of the physical space
Creators: name: Rizzuti, B. F.
name: Gaio, L. M.
name: Duarte, C.
Publisher: name: arXiv
Year: 2019
Subjects: subject: History and Overview (math.HO)
subject: FOS: Mathematics

description: Abstract axiomatic formulation of mathematical structures are extensively used to describe our physical world. We take here the reverse way. By making basic assumptions as starting point, we reconstruct some features of both geometry and topology in a fully operational manner. Curiously enough, primitive concepts such as points, spaces, straight lines, planes are all defined within our formalism. Our construction breaks down with the usual literature, as our axioms have deep connection with nature. Besides that, we hope this operational approach could also be of pedagogical interest.
description: 12 pages; 15 figures
Quantum Myers effect and its supergravity dual for D0/D4 systems
Creators: name: Silva, Pedro J.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The presence of a distant D4-brane is used to further investigate the duality between M-theory and D0-brane quantum mechanics. A polarization of the quantum mechanical ground state is found. A similar deformation arises for the bubble of normal space found near D0-branes in classical supergravity solutions. These deformations are compared and are shown to have the same structure in each case.
description: 7 pages, based on a talk presented at the conference MRST 2001 at London, Canada
Hydrogonium orientale Jan Kucera
Creators: name: Ros, Rosa M.
name: Olaf, Susana Rams
name: Eloy, Olaf Werner
name: Cerón, Eloy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Bryopsida
Pottiales
Pottiaceae
Hydrogonium
Hydrogonium orientale

description: Hydrogonium orientale (F.Weber) Jan Kučera
Barbula indica (Hook.) Spreng.
Nomenclature follows Kučera et al. (2013).
RECORDS. — Geheeb (1879), Bescherelle (1882): Cascade du Rimel, prope Constantine Algeriae. Bescherelle (1882): Cascades des gorges de la Chiffa; Constantine, bords d’une source thermale. Bescherelle (1882), Jelenc (1955a): Alger. Corbière (1904): Constantine, sources thermales de Sidi M’Cid. Corbière (1905): Environs de Constantine, Moulin Laire. Corbière (1905), Jelenc (1955a): Environs de Constantine, ravin du Rummel; Environs de Constantine, ruisseau près Salah Bey. Jelenc (1949, 1967): Haute plaine de Tlemcen, Aïn Defla, 620 m; Haute plaine de Tlemcen, oued Saf-Saf, vers 600 m; Monts de Tlemcen, cirque d’El Ourit. Jelenc (1955a): Gorges de la Chiffa, ruisseau des Singes. Boukhatem et al. (2017): El-Kala National Park, Tonga lake watershed. Frequent.
description: Published as part of Ros, Rosa M., Olaf, Susana Rams, Eloy, Olaf Werner & Cerón, Eloy, 2024, Revisiting the Bryophyte Checklist of Algeria: Exploring Diversity and Distribution, pp. 49-116 in Cryptogamie, Bryologie 20 (5) on page 82, DOI: 10.5252/cryptogamie-bryologie2024v45a5, http://zenodo.org/record/14593891
Spontaneous Symmetry Breaking In Nonlinear Binary Periodic Systems
Creators: name: Peng, Ruihan
name: Fu, Qidong
name: Chen, Yejia
name: Luo, Weidong
name: Huang, Changming
name: Ye, Fangwei
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Spontaneous symmetry breaking (SSB) occurs when modes of asymmetric profile appear in a symmetric, double-well potential, due to the nonlinearity of the potential exceeding a critical value. In this study, we examine SSB in a periodic potential where the unit cell itself is a symmetric double-well, in both one-dimensional and two-dimensional periodic systems. Using the tight-binding model, we derive the analytical form that predicts the critical power at which SSB occurs for both 1D and 2D systems. The results show that the critical power depends significantly on the quasi-momentum of the Bloch mode, and as the modulus of momentum increases, the SSB threshold decreases rapidly, potentially dropping to zero. These analytical findings are supported by numerical nonlinear eigenmode analysis and direct propagation simulations of Bloch modes.
O desempenho altmétrico de artigos de revistas do portal USP no Facebook: o diferencial da divulgação científica?
Creators: name: Araujo, Ronaldo
name: Serradas, Andre
name: Murakami, Tiago Rodrigo Marçal
Publisher: name: figshare
Year: 2019
Subjects: subject: 80704 Information Retrieval and Web Search
subject: FOS: Media and communications
subject: Library and Information Studies
subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Trabalho apresentado no 6º Encontro Brasileiro de Bibliometria e Cientometria, jul., 2018, Rio de Janeiro: Fiocruz.
Evaluation of the Influence of Agricultural Price Policy on Cotton Production in Cote-d'lvoire
Creators: name: Berte, Kama
name: Epplin, Francis M.
name: Berte, Kama
name: Epplin, Francis M.
Publisher: name: Unknown
Year: 1989
Subjects: Agricultural and Food Policy
Demand and Price Analysis
Production Economics

description: In this paper the impact of the cotton pricing policy of the marketing board of Cote-d'Ivoire is investigated. A theoretical model is developed to derive the price level which maximizes revenue generated from the marketing board's cotton transactions. A dynamic cotton supply function was estimated and used to compute elasticities. The estimates indicate that farmers in the Country response to price changes and that the pricing policy of the marketing board has been consistent with an objective of generating revenue for the government.
Local fuzzy geographically weighted clustering: a new method for geodemographic segmentation
Creators: name: Grekousis, George
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer

description: Fuzzy geographically weighted clustering has been proposed as an approach for improving fuzzy c-means algorithm when applied to geodemographic analysis. This clustering method allows a spatial entity to belong to more than one cluster with varying degrees, namely, membership values. Although fuzzy geographically weighted clustering attempts to create geographically aware clusters, it partially fails to trace spatial dependence and heterogeneity because, as a global metric, the membership values are calculated across the entire set of spatial entities. Here we introduce the first local version of fuzzy geographically weighted clustering, ‘local fuzzy geographically weighted clustering.’ In local fuzzy geographically weighted clustering, the membership values of a spatial entity are updated only according to the membership values of the spatial entities within its neighborhood and not across the entire set of entities, as originally proposed by the global metric. Additionally, we apply particle swarm optimization meta-heuristic to overcome the random initialization problem regarding the fuzzy c-means algorithm. To evaluate our method we compare local fuzzy geographically weighted clustering to global fuzzy geographically weighted clustering using a cancer incident benchmark dataset for Manhattan, New York. The results show that local fuzzy geographically weighted clustering outperforms the global version in all experimental settings.
Manipulating Light Pulses via Dynamically Controlled Photonic Bandgap
Creators: name: Andre, A.
name: Lukin, M. D.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: When a resonance associated with electromagnetically induced transparency (EIT) in an atomic ensemble is modulated by an off-resonant standing light wave, a band of frequencies can appear for which light propagation is forbidden. We show that dynamic control of such a bandgap can be used to coherently convert a propagating light pulse into a stationary excitation with non-vanishing photonic component. This can be accomplished with high efficiency and negligble noise even at a level of few-photon quantum fields thereby facilitating possible applications in quantum nonlinear optics and quantum information.
description: 4 pages, 3 figures
The Study of Religions in Premodern Muslim Civilization: Some Distinctions Concerning Its Disciplinary Status
Creators: name: Akram, Muhammad
Publisher: name: figshare
Year: 2021
Subjects: subject: 220402 Comparative Religious Studies
subject: FOS: Philosophy, ethics and religion
subject: 220208 History and Philosophy of the Social Sciences
subject: 220207 History and Philosophy of the Humanities
subject: 220403 Islamic Studies
subject: 229999 Philosophy and Religious Studies not elsewhere classified
subject: 220499 Religion and Religious Studies not elsewhere classified
subject: 220405 Religion and Society
subject: Religious Studies
subject: 220406 Studies in Eastern Religious Traditions

description: Scholars have made contesting claims about the nature and scale of works on religions by Muslim scholars before modern times. The present paper explores various primary and secondary sources, especially the classical bibliographical indexes that the scholarly tradition under scrutiny itself produced, and classifies these works into three types: (a) polemics, (b) works that present authentic knowledge about various faith traditions or introduce methodological novelties but carry some degree of apologetic undertone, and (c) descriptive writings on religions which resemble the modern-day academic study of religion. Based on these distinctions and an assessment of the number of works in each type, the paper maintains that a sprouting tradition of descriptive studies of religions existed in the pre-modern Muslim societies, which introduced certain methodical novelties such as comparative method, historiography, and, last but not least, textual criticism, which seems to have heralded the modern biblical studies in some respects. However, this tradition could not mature into a full-fledged discipline at par with many other branches of knowledge that flourished in the heyday of Muslim civilization. These findings imply that the descriptive study of religions other than one’s own is not necessarily a modern Western phenomenon. It can take root in multiple cultural settings.
Effectual bio-decolourization of anthraquinone dye reactive blue-19 containing wastewater by Bacillus cohnii LAP217: process optimization
Creators: name: Saurabh Mishra
name: Abhijit Maiti
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
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: 110309 Infectious Diseases
subject: FOS: Health sciences

description: The Colored wastewaters produced from textile industries are enriched with toxic reactive dyes that cause serious biotic risk and ecological disturbances. The present study aims to decolourize an anthraquinone reactive blue-19 dye from aqueous solution by Bacillus cohnii LAP217. The selection of influential process parameters and optimization of process condition is performed using two-point factorial analysis and response surface method, respectively. The results reveal that the decolourization of dye is positively influenced by supplementation of di-sodium hydrogen phosphate (coefficient estimate: 7.4). The bacterium has exhibited 87.3 ± 0.4% decolourization of initial dye concentration 50 mg/L during the model validation through confirmatory experiment analysis, which has satisfactory correlation with model predicted response. However, the initial chromate concentration >50 mg/L in the medium have negative influence on performance of system by reducing the dye decolourization response below <70%, under similar process condition. Colored bacterial mass is obtained after the centrifugation of treated dye solution and a significant change in the UV-visible absorption peak is observed between raw and treated dye solution, which confirms the bio-accumulation of reactive blue-19 dye. The bacteria could exhibit significant American dyes manufactures institutes (ADMI) value reduction percentage of 79.84% during treatment of real wastewater.
Why did Einstein Reject the November Tensor in 1912-1913, only to Come Back to it in November 1915?
Creators: name: Weinstein, Galina
Publisher: name: arXiv
Year: 2019
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: The question of Einstein's rejection of the November tensor is re-examined in light of conflicting answers by several historians. I discuss these conflicting conjectures in view of three questions that should inform our thinking: Why did Einstein reject the November tensor in 1912, only to come back to it in 1915? Why was it hard for Einstein to recognize that the November tensor is a natural generalization of Newton's law of gravitation? Why did it take him three years to realize that the November tensor is not incompatible with Newton's law? I first briefly describe Einstein's work in the Zurich Notebook. I then discuss a number of interpretive conjectures formulated by historians and what may be inferred from them. Finally, I offer a new combined conjecture that answers the above questions.
description: 66 pages
Microscopic Mechanisms of Diffusion Dynamics: A Comparative Efficiency Study of Event-Chain Monte Carlo Variants in Dense Hard Disk Systems
Creators: name: Mugita, Daigo
name: Isobe, Masaharu
Publisher: name: arXiv
Year: 2024
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: In molecular simulations, efficient methods for investigating equilibration and slow relaxation in dense systems are crucial yet challenging. This study focuses on the diffusional characteristics of monodisperse hard disk systems at equilibrium, comparing novel methodologies of event-chain Monte Carlo variants, specifically the Newtonian event-chain and straight event-chain algorithms. We systematically analyze both event-based and CPU time-based efficiency in liquid and solid phases, aiming to elucidate the microscopic mechanisms underlying structural relaxation. Our results demonstrate how chain length or duration, system size, and phase state influence the efficiency of diffusion dynamics, including hopping motion. This work provides insights into optimizing simulation techniques for highly packed systems and has the potential to improve our understanding of diffusion dynamics even in complex many-body systems.
description: 11 pages, 6 figures, to appear in J. Chem. Phys
Charged gravastar model in noncommutative geometry under $f(\mathbb{T})$ gravity
Creators: name: Mohanty, Debasmita
name: Ghosh, Sayantan
name: Sahoo, P. K.
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this article, we study the properties of charged gravastars in torsion-based $f(\mathbb{T})$ gravity in the presence of noncommutative geometry. We have taken the interior from noncommutative motivated space-time, noting that why, from a physical point of view, such a choice is justified, then we have taken the thin shell as stiff matter and taken three different exterior metrics (Reissner-Nordstrom (R-N), Bardeen and Ayon-Beato-Garcia (ABG) metric) to construct the gravastar model. We have studied the physical properties like proper length, entropy, energy, and EoS for these models, and we have also used Israel junction conditions to study the effective pressure, energy density, and potential of the thin shell. Finally, we comment on the stability of such a thin shell and the deflection angle caused by such a thin shell, which could, in principle, be tested by future radio telescopes like the Event Horizon Telescope (EHT).
description: Physics of the Dark Universe accepted version
Nodal and Periastron Precession of Inclined Orbits in the Field of a Rapidly Rotating Neutron Star
Creators: name: Sibgatullin, Nail
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We derive a formula for the nodal precession frequency and the Keplerian period of a particle at an arbitrarily inclined orbit (with a minimum latitudinal angle reached at the orbit) in the post-Newtonian approximation in the external field of an oblate rotating neutron star (NS). We also derive formulas for the nodal precession and periastron rotation frequencies of slightly inclined low-eccentricity orbits in the field of a rapidly rotating NS in the form of asymptotic expansions whose first terms are given by the Okazaki--Kato formulas. The NS gravitational field is described by the exact solution of the Einstein equation that includes the NS quadrupole moment induced by rapid rotation. Convenient asymptotic formulas are given for the metric coefficients of the corresponding space-time in the form of Kerr metric perturbations in Boyer--Lindquist coordinates.
description: 12 pages
Hygroamblystegium fluviatile Loeske 1903
Creators: name: Ros, Rosa M.
name: Olaf, Susana Rams
name: Eloy, Olaf Werner
name: Cerón, Eloy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Bryopsida
Hypnales
Amblystegiaceae
Hygroamblystegium
Hygroamblystegium fluviatile

description: Hygroamblystegium fluviatile (Hedw.) Loeske
RECORDS. — Jelenc (1955a): Blida; Gorges de la Chiffa; Tlemcen. Rare.
description: Published as part of Ros, Rosa M., Olaf, Susana Rams, Eloy, Olaf Werner & Cerón, Eloy, 2024, Revisiting the Bryophyte Checklist of Algeria: Exploring Diversity and Distribution, pp. 49-116 in Cryptogamie, Bryologie 20 (5) on page 83, DOI: 10.5252/cryptogamie-bryologie2024v45a5, http://zenodo.org/record/14593891
Hausdorffness of General Compactifications
Creators: name: Ramkumar, S.
name: Moorthy, C. Ganesa
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Topology (math.GN)
subject: FOS: Mathematics
subject: 54D35

description: Magill proved that the remainders of two locally compact Hausdorff spaces in their StoneCech compactifications are homeomorphic if and only if the lattices of their Hausdorff compactifications are lattice isomorphic. His construction for compactifications are explicitely discussed through the partitions of their StoneCech compactifications. Partitions in a StoneCech compactification which lead to Hausdorff compactifications are characterized in this article. Embeddings of certain upper semi-lattices of compactifications into lattices of compactifications are constructed.
description: 5 pages
Entanglement at distance: qubits versus continuous variables
Creators: name: D'Ariano, G. M.
name: Sacchi, M. F.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider the problem of obtaining maximally entangled photon states at distance in the presence of loss. We compare the efficiency of two different schemes in establishing $N$ shared ebits: i) $N$ single ebit states with the qubit encoded on polarization; ii) a single continuous variable entangled state (emode) assisted by optimal local operation and classical communication (LOCC) protocol in order to obtain a $2^N$-dimensional maximally entangled state, with qubits encoded on the photon number.
description: 5 pages. 4 eps files. Use fortschritte.sty (included)
Systematic Design-of-Experiments, factorial-design approaches for tuning simple empirical water models
Creators: name: O’Connor, Diarmuid
name: English, Niall J.
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Plasma Physics

description: Using systematic Design-of-Experiments, factorial-design approaches, we identify how five variables (site charge, sigma, epsilon, OH bond length and HOH bond angle) affect the diffusivity and radial distribution function accuracy within the framework of the Simple Point Charge water model. From this (by a full-functional DoX-effects model), we glean response equations for the effects of these systematic variations on both estimation of site-site radial distribution functions, in addition to self-diffusivities, allowing scope to estimate more precisely optimal parameters for use in tailored force-fields for particular purposes (e.g. improved fidelity towards particular desired structural or dynamical properties). To this end, the diffusivity error was reduced from an initial value of 35.2–0.64%, whilst the radial distribution function was more difficult to improve, with a reduction in error of 2.83%.
Signatures of Supersymmetry in Neutrino Telescopes
Creators: name: Dev, P. S. Bhupal
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We review the prospects of probing $R$-parity violating Supersymmetry (RPV SUSY) at neutrino telescopes using some of the highest energy particles given to us by Nature. The presence of RPV interactions involving ultra-high energy neutrinos with Earth-matter can lead to resonant production of TeV-scale SUSY partners of the SM quarks and leptons (squarks and sleptons), thereby giving rise to potentially anomalous behavior in the event spectrum observed by large-volume neutrino detectors, such as IceCube, as well as balloon-borne cosmic ray experiments, such as ANITA. Using the ultra-high energy neutrino events observed recently at IceCube, with the fact that for a given power-law flux of astrophysical neutrinos, there is no statistically significant deviation in the current data from the Standard Model expectations, we derive robust upper limits on the RPV couplings as a function of the resonantly-produced squark mass, independent of the other unknown model parameters, as long as the squarks decay dominantly to two-body final states involving leptons and quarks through the RPV couplings. Also, we discuss RPV SUSY interpretations of the recent anomalous, upward-going EeV air showers observed at ANITA, in terms of long-lived charged or neutral next-to-lightest SUSY particles.
description: 35 pages, 5 figures; Prepared for the forthcoming book "Particle Physics with Neutrino Telescopes", C. Perez de los Heros, editor (World Scientific)
The Measurement and Determinants of Vertical Coordination: A Transactions Cost Approach
Creators: name: Frank, Stuart D.
name: Henderson, Dennis R.
name: Frank, Stuart D.
name: Henderson, Dennis R.
Publisher: name: Unknown
Year: 1990
Subjects: Research Methods/ Statistical Methods

description: There is increased interest in vertical coordination as a more comprehensive industry structural variable than the traditional vertical integration measure. Vertical coordination includes not only vertical integration but all other vertical coordinating structures. Previous studies of vertical industrial organization did not examine the role of non-market exchange mechanisms outside the domain of vertical integration. The concept of a vertical coordination variable incorporating all coordinating structures bridges the gap in the dichotomy of market versus ownership coordination. There is an extensive literature examining the factors affecting vertical integration. More recently, attention has focussed on transactional inefficiencies as a primary motivation for vertical integration. However, little empirically has been done to examine the economic motivations for vertical coordination. This paper proposes an innovative measure of vertical coordination and examines the determining factors motivating the use of vertical coordinating structures. The vertical coordination measure incorporates product flow interdependencies between vertically related firms/industries plus coordinating structures utilized in the transfer of control. Coordinating structures examined include: 1) spot markets, 2) market specification contracts, 3) production management contracts, 4) resource providing contracts, and 5) integration. To explain the food industries' incidence of vertical coordination due to transactional inefficiencies, several industrial characteristics affecting transaction costs are examined. These factors include future demand growth and uncertainty, market power, product and technical differentiation, flow economies, and firm size and specialization. Based on four progressively comprehensive specifications of vertical coordination, the empirical analysis confirms the hypothesis that transaction costs are a primary motivation for vertical coordination. The most comprehensive vertical coordination measure incorporating product flow linkages and coordinating structures performed very well. The transaction cost factors most influential were those related to research and development, internal costs, flow economies, and input supplier concentration. Moreover, a comparison of the vertical coordination and vertical integration measures revealed the significance of the use of coordinating structures as a response to transactional inefficiencies.
Identifying urban growth patterns through land-use/land-cover spatio-temporal metrics: Simulation and analysis
Creators: name: Sapena, Marta
name: Ruiz, Luis A.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: 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: 20199 Astronomical and Space Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Inorganic Chemistry
subject: Plant Biology

description: The spatial pattern of urban growth determines how the physical, socio-economic and environmental characteristics of urban areas change over time. Monitoring urban areas for early identification of spatial patterns facilitates assuring their sustainable growth. In this paper, we assess the use of spatio-temporal metrics from land-use/land-cover (LULC) maps to identify growth patterns. We applied LULC change models to simulate different scenarios of urban growth spatial patterns (i.e., expansion, compact, dispersed, road-based and leapfrog) on various baseline urban forms (i.e., monocentric, polycentric, sprawl and linear). Then, we computed the spatio-temporal metrics for the simulated scenarios, selected the most informative metrics by applying discriminant analysis and classified the growth patterns using clustering methods. Two metrics, Weighted mean expansion and Weighted Euclidean distance, which account for the densification, compactness and concentration of urban growth, were the most efficient for classifying the five growth patterns, despite the influence of the baseline urban form. These metrics have the potential to identify growth patterns for monitoring and evaluating the management of developing urban areas.
Hygroamblystegium tenax Jenn.
Creators: name: Ros, Rosa M.
name: Olaf, Susana Rams
name: Eloy, Olaf Werner
name: Cerón, Eloy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Bryopsida
Hypnales
Amblystegiaceae
Hygroamblystegium
Hygroamblystegium tenax

description: Hygroamblystegium tenax (Hedw.) Jenn.
RECORDS. — Bescherelle (1882): Oued Sidi-Kebir. Bescherelle (1882), Jelenc (1955a): Alger. Braun-Blanquet & Maire (1924), Jelenc (1955a): Tlemcen. Jelenc (1949, 1967): Vallée de l’Isser, lieu dit “El Kasbat”, près de Lamoricière, 500 m. Jelenc (1955a): Monts de Batna, djebel Touggour, 1300 m. Boukhatem et al. (2017): El-Kala National Park, Tonga lake watershed. Rare.
description: Published as part of Ros, Rosa M., Olaf, Susana Rams, Eloy, Olaf Werner & Cerón, Eloy, 2024, Revisiting the Bryophyte Checklist of Algeria: Exploring Diversity and Distribution, pp. 49-116 in Cryptogamie, Bryologie 20 (5) on page 83, DOI: 10.5252/cryptogamie-bryologie2024v45a5, http://zenodo.org/record/14593891
Static BPS-conditions in N=2 harmonic superspace
Creators: name: Zupnik, B. M.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyze superfield representations of BPS-conditions for the self-dual static solutions of D=4, N=2 supersymmetric Yang-Mills theory.
description: Latex file 4 pages, talk at the conference SUSY01, Dubna, June 11-17, 2001
ALEPH-QP: Universal hybrid quantum processors
Creators: name: Vlasov, Alexander Yu.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A quantum processor (the programmable gate array) is a quantum network with a fixed structure. A space of states is represented as tensor product of data and program registers. Different unitary operations with the data register correspond to "loaded" programs without any changing or "tuning" of network itself. Due to such property and undesirability of entanglement between program and data registers, universality of quantum processors is subject of rather strong restrictions. By different authors was developed universal "stochastic" quantum gate arrays. It was proved also, that "deterministic" quantum processors with finite-dimensional space of states may be universal only in approximate sense. In present paper is shown, that using hybrid system with continuous and discrete quantum variables, it is possible to suggest a design of strictly universal quantum processors. It is shown also that "deterministic" limit of specific programmable "stochastic" U(1) gates (probability of success becomes unit for infinite program register), discussed by other authors, may be essentially same kind of hybrid quantum systems used here.
description: 8 pages, LaTeX 2e
MHD Turbulence in Star-Forming Regions and the Interstellar Medium
Creators: name: Mac Low, Mordecai-Mark
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: MHD turbulence plays a central role in the physics of star-forming molecular clouds and the interstellar medium. I here show that MHD turbulence in molecular clouds must be driven to account for the observed supersonic motions in the clouds, as even strongly magnetized turbulence decays quickly. I then show that driven MHD turbulence can globally support gravitationally unstable regions, but local collapse inevitably occurs. Differences in the strength of driving and the gas density may explain the very different rates of star formation observed in different galaxies. The driving mechanism for the turbulence is likely a combination of field supernovae in star-forming sections of galactic disks, and magnetorotational instabilities in outer disks and low surface brightness galaxies. Supernova-driven turbulence has a broad range of pressures with a roughly log-normal distribution. High-pressure, cold regions can be formed even in the absence of self-gravity.
description: 30 pages, 18 figures (last four color on pages 24 and after); final refereed version to be published in the conference proceedings "Simulations of magnetohydrodynamic turbulence in astrophysics" eds. T. Passot & E. Falgarone, Springer Lecture Notes in Physics (changes in response to referee's comments were primarily for clarity, in some cases making drastic improvements.)
Arrenurus (Arrenurus) altomontanus Smit 2012, n. sp.
Creators: name: Smit, H.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Arrenuridae
Arrenurus
Arrenurus altomontanus

description: Arrenurus (Arrenurus) altomontanus n. sp.
(Figs. 1–7)
 Material examined. Holotype male, Hofchoo Lake, Dinsho, Bale Mountains, Ethiopia, 7° 07.247 N 39° 43.219 E, alt. 3051 m a.s.l., 26-x-2006 (RMNH). Paratypes: three males, seven females, same data as holotype (RMNH).
 Diagnosis. Petiole simple, without ligulate process; hyaline membrane almost bilobed.
 Description. Male: Idiosoma brownish, 984 (974–1012) long (including petiole) and 599 (608–616) wide. Anterior idiosoma margin concave. Dorsal shield incomplete, passing onto cauda, 348 (356–374) wide. One of the glandularia D1 lacking in the holotype, but present in paratypes. D3 combined to one, large hump. Cauda and pygal lobes distinct. Hyaline membrane with a deep concave posterior margin, resulting in an almost bilobed membrane. Petiole simple, widened at its base, ligulate process absent, in lateral view tip of petiole downturned. Setae associated with petiole shorter than petiole. Anterior coxal plates not extending to anterior idiosoma margin. Posterior margin of fourth coxal plates sloping. Gonopore 60 long. Genital plates relatively wide, extending to lateral idiosoma margin, lateral part slightly narrower. Lengths of PI–PV: 30, 77, 62, 94, 55; PII medially with six setae. Lengths of I-leg-4-6: 134, 128, 172. Lengths of IV-leg-4-6: 180, 120, 140; IV-leg-4 with a spur.
Female: Idiosoma brownish, 1085 (948–1110) long and 875 (786–907) wide, anterior margin slightly concave, posteriorly slightly truncated. Dorsal shield complete, 753 (632–729) long and 583 (527–567) wide. Anterior coxal plates not extending to anterior idiosoma margin. Medial margin of fourth coxal plates larger than medial margin of third coxal plates. Medial distance of fourth coxal plates a little bit larger than width of one genital valve. Gonopore 140 long and 154 wide, without sclerotized patches. Genital plates large and wide, less than two times as long as wide; genital field 591 wide. One paratype female has shorter genital plates (Fig. 6). Lengths of PI–PV: 36, 86, 62, 98, 62; palp as in male, but PII medially with four setae. Lengths of I-leg-4-6: 146, 134, 130. Lengths of IV-leg-4- 6: 200, 184, 142.
 Etymology. Named for its occurrence in the high mountains.
 Remarks. Most important characteristic for the new species is the almost bilobed hyaline membrane. Two other Afrotropical species have also a simple petiole, i.e. A. cooki K.O. Viets, 1968 and A. capensis Thor, 1902, but both species have a different hyaline membrane.
description: Published as part of Smit, H., 2012, New records of the water mite family Arrenuridae from the Afrotropical region, with the description of 11 new species and two new subspecies (Acari: Hydrachnidia), pp. 1-31 in Zootaxa 3187 on page 2