cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Economics of Blockchain
Creators: name: Oladehinde, Ayomide Elijah
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 380102
subject: Behavioural economics
classificationCode: 360205
subject: Technical writing
classificationCode: 460401
subject: Cryptography

description: This article explores the dynamic interplay between traditional economics and the burgeoning realm of cryptocurrencies. From the genesis of Bitcoin in 2009 to the unprecedented surge in global adoption, the evolution of cryptocurrencies has become a defining force in reshaping established economic paradigms. The global user base of cryptocurrencies witnessed an explosive 190 percent increase between 2018 and 2020, setting the stage for a transformative acceleration in 2024.At the core of this exploration is the juxtaposition of the cryptocurrency market, collectively valued at over $1 trillion, against the vast tapestry of traditional global currencies, estimated at $85.4 trillion when accounting for untraceable forms of wealth. This shift signals more than a numerical transition; it signifies a fundamental reevaluation of the foundational principles of money, ownership, and value.As we navigate the blend between economics and crypto, we find ourselves at a pivotal juncture where the Crypto market is not merely catching up but positioning itself to outpace the traditional money supply. This symbiotic relationship between traditional financial systems and decentralized currencies invites contemplation on the future trajectory of global economies.The unfolding narrative presented in this article seeks to unravel the intricacies of this transformative journey. It delves into the economic implications of crypto trading, the establishment of crypto businesses, and the evolving regulatory landscape. It contemplates the role of cryptocurrencies in influencing money supply and demand, challenging inflation norms, and sparking economic growth.The fusion of economics and cryptocurrencies transcends numerical valuations; it encompasses a paradigm shift that demands a rethinking of traditional financial models. This abstract serves as an invitation to delve into the pages that follow, where the symbiosis of economics and crypto unfolds, revealing a landscape where innovation, adoption, and technological progress converge to redefine the very fabric of global finance.
Interaction of a Laguerre-Gaussian beam with Rydberg atoms
Creators: name: Mukherjee, Koushik
name: Majumder, Sonjoy
name: Mondal, Pradip Kumar
name: Deb, Bimalendu
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Transfer mechanism of orbital angular moment(OAM) of light to trapped ground-state atoms under paraxial approximation is well known. Here we show how optical OAM of a Laguerre-Gaussian(LG) beam under paraxial approximation can be transferred to trapped Rydberg atoms. Optical OAM is shown to be transferable to a Rydberg electronic state in dipole transition. The Gaussian part of the profile of the LG beam, which is generally neglected , is found to have an important effect on the OAM transfer to the Rydberg atoms. Numerical calculations are calculated based on this theory for Rubidium Rydberg atoms trapped in a harmonic potential. Our results exhibit the mixing of final states of different parities.
description: 16 pages, 1 figure
Implications of Strong Intergalactic Magnetic Fields for Ultra-High-Energy Cosmic-Ray Astronomy
Creators: name: Batista, Rafael Alves
name: Shin, Min-Su
name: Devriendt, Julien
name: Semikoz, Dmitri
name: Sigl, Guenter
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the propagation of ultra-high-energy cosmic rays in the magnetised cosmic web. We focus on the particular case of highly magnetised voids ($B \sim \text{nG}$), using the upper bounds from the Planck satellite. The cosmic web was obtained from purely magnetohydrodynamical cosmological simulations of structure formation considering different power spectra for the seed magnetic field in order to account for theoretical uncertainties. We investigate the impact of these uncertainties on the propagation of cosmic rays, showing that they can affect the measured spectrum and composition by up to $\simeq 80\%$ and $\simeq 5\%$, respectivelly. In our scenarios, even if magnetic fields in voids are strong, deflections of 50 EeV protons from sources closer than $\sim\;$50 Mpc are less than $15^\circ$ in approximately 10-50% of the sky, depending on the distribution of sources and magnetic power spectrum. Therefore, UHECR astronomy might be possible in a significant portion of the sky depending on the primordial magnetic power spectrum, provided that protons constitute a sizeable fraction of the observed UHECR flux.
description: 12 pages, 10 figures
A Unified Optimization Approach for Sparse Tensor Operations on GPUs
Creators: name: Liu, Bangtian
name: Wen, Chengyao
name: Sarwate, Anand D.
name: Dehnavi, Maryam Mehri
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mathematical Software (cs.MS)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Sparse tensors appear in many large-scale applications with multidimensional and sparse data. While multidimensional sparse data often need to be processed on manycore processors, attempts to develop highly-optimized GPU-based implementations of sparse tensor operations are rare. The irregular computation patterns and sparsity structures as well as the large memory footprints of sparse tensor operations make such implementations challenging. We leverage the fact that sparse tensor operations share similar computation patterns to propose a unified tensor representation called F-COO. Combined with GPU-specific optimizations, F-COO provides highly-optimized implementations of sparse tensor computations on GPUs. The performance of the proposed unified approach is demonstrated for tensor-based kernels such as the Sparse Matricized Tensor- Times-Khatri-Rao Product (SpMTTKRP) and the Sparse Tensor- Times-Matrix Multiply (SpTTM) and is used in tensor decomposition algorithms. Compared to state-of-the-art work we improve the performance of SpTTM and SpMTTKRP up to 3.7 and 30.6 times respectively on NVIDIA Titan-X GPUs. We implement a CANDECOMP/PARAFAC (CP) decomposition and achieve up to 14.9 times speedup using the unified method over state-of-the-art libraries on NVIDIA Titan-X GPUs.
Letter from Walter Shewring to Herbert Read, March 12, 1963
Creators: name: Shewring, Walter
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Translators
valueUri: http://id.worldcat.org/fast/1154833
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Classicists
valueUri: http://id.worldcat.org/fast/863567
subject: Shewring, Walter
subject: Art historians
valueUri: http://id.worldcat.org/fast/815554
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Anarchists
valueUri: http://id.worldcat.org/fast/808401
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: Read, Herbert, 1893-1968
valueUri: http://id.worldcat.org/fast/1754386
subject: Editors
valueUri: http://id.worldcat.org/fast/902475

description: Part of a collection of letters to Sir Herbert Read from Walter Shewring. Shewring is most well known for his translation of Homer’s “Odyssey”, but in addition to translating, he also wrote essays and poetry. In this letter, Shewring gives his sympathies for Read's slipped disc, and describes his sister's experience with the same. He expresses his thoughts about Read's most recent book, and his criticism of some of the negative reviews it received. In this letter Shewring also requests Read's help to sell three paintings, two by Stanley Spencer and one by Gilbert Spencer, in order to purchase a sculpture by Eric Gill for the E. G. Collection. He describes one of the paintings as a variant of "'John Donne Arriving in Heaven' (1911)".
Copolar convexity
Creators: name: Rashkovskii, Alexander
Publisher: name: arXiv
Year: 2017
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 32U15, 32U20, 52A20, 52A39

description: We introduce a new operation, copolar addition, on unbounded convex subsets of the positive orthant of real euclidean space and establish convexity of the covolumes of the corresponding convex combinations. The proof is based on a technique of geodesics of plurisubharmonic functions. As an application, we show that there are no relative extremal functions inside a non-constant geodesic curve between two toric relative extremal functions.
description: Bugs fixed. Relations to complex interpolated spaces added
MANUFACTURING OF POLYMER BASED HIGH RESOLUTION HOLLOW CHANNEL/FIBERS VIA CO-FLOW GENERATION
Creators: name: He, Zijian
Publisher: name: Purdue University Graduate School
Year: 2022
Subjects: Wearable materials
Composite and hybrid materials
Microfluidics and nanofluidics
Flexible manufacturing systems

description: High-resolution enclosed channels/fibers are highly demanded by different disciplines such as microfluidic channels for chemical synthesis, bioreactors for drug metabolism, magnetic locomotor for drug delivery, and wearable devices for motion detection. However, the current fabrication techniques for enclosed channels/fibers are restricted to a few millimeters in size. Their manufacturing often involves time and energy-consuming multi-step processes with insufficient resolution. In this work, we demonstrate a novel co-flow-enabled fabrication method to resolve the technological restrictions in the fabrication of high-resolution enclosed channels/fibers with efficient production time, controllable morphologies, and high throughput manner. An epoxy-based enclosed microfluidic channel was first built. A non-reactive paraffin oil and a liquid resin were pumped into a 3D-printed co-flow generator and worked as core and shell fluids, respectively. The epoxy resin was cured by external heat stimulus. As a result, the reaction region was limited between the generator wall surface and the boundary of core flow, eliminating the need for precise control over the curing system. The experiment was successfully conducted to cure build resin channel inside copper and resin tubes with good shell thickness. Conductive hollow hydrogel microfibers were also fabricated by this method. Sodium Alginate and Calcium Chloride were chosen as the shell and core flows, respectively. The ionic crosslinking happens at the boundary of two flows and expands outwards across the radial direction. Thus, the diameter of the hollow channel can be easily adjusted by tuning the flow rate and the size of the core flow injection needle. PEDOT: PSS, a conductive polymer, was mixed with Sodium Alginate to impart fibers with excellent electrical conductivity. The synthesized hollow microfibers have shown their functionality in stretching movement detection by serving as a fundamental building element of motion sensors.
Letter from Edith Wharton to Herbert Read, June 20, 1934
Creators: name: Wharton, Edith, 1862-1937
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Anarchists
valueUri: http://id.worldcat.org/fast/808401
subject: Read, Herbert, 1893-1968
valueUri: http://id.worldcat.org/fast/1754386
subject: Wharton, Edith, 1862-1937
valueUri: http://id.worldcat.org/fast/48127
subject: Novelists, American
valueUri: http://id.worldcat.org/fast/1039688
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Art historians
valueUri: http://id.worldcat.org/fast/815554
subject: Women novelists
valueUri: http://id.worldcat.org/fast/1178197
subject: Novelists
valueUri: http://id.worldcat.org/fast/1039684

description: One of a pair of letters to Sir Herbert Read from American novelist and short story writer Edith Wharton. Wharton was the first woman to win a Pulitzer Prize in Literature for her most well-known novel “The Age of Innocence”. In this letter, Wharton praises a book of Read's and writes that she may see him in London soon.
Commercial and Recreational Active UAV Fleet in the U.S. 2016-2022
Creators: name: Pik, Eugene
Publisher: name: Zenodo
Year: 2024
Subjects: FAA
UAV
drone
UAVs per year
active UAV
active UAV fleet
number of active drones in USA
UAV Fleet Data
Commercial UAVs
Recreational UAVs
U.S. Drone Statistics
Active UAVs
UAV Technological Advancement
Public Perception of Drones
Security Strategies for UAVs
Historical UAV Data
FAA Annual Reports
Urban Drone Planning
US National Security Drones
FAA UAV Safety Protocols
UAS
Drone Research
UAV Safety Measures
Environmental UAV Monitoring
Drone Privacy
US UAV Safety Protocols

description: The number of active commercial and residential Unmanned Aerial Vehicles (UAVs) in the US is crucial for both practical and research purposes. Practically, it informs regulatory oversight, safety protocols, economic impact, infrastructure planning, national security, privacy concerns, technological advancement, environmental monitoring, public perception, and emergency response. For research, it shapes safety measures, economic analysis, technological innovation, policy formation, sociological impact, urban planning, security strategies, human factors, and emergency preparedness.

Data presented in Table 1 were compiled from annual reports by the Federal Aviation Administration (FAA) and are based on historical information from the preceding year as contained in those reports.
Massnahmenzentrum St. Johannsen: Management Review
Creators: name: Käser, Jacqueline Rahel
name: Müller, Luca
name: Zürcher, Céline
Publisher: name: My University
Year: 2016
Subjects: subject: ISO-Norm
subject: Management-Review
subject: Qualitätsmanagement
subject: Prozessmanagement
subject: Managementbewertung
subject: 330 - Wirtschaft

description: Die Projektarbeit zeigt die Anforderungen an das Management-Review des Massnahmenzentrums St. Johannsen nach ISO-Norm 9001:2015 auf.
Constraining Sterile Neutrinos from Precision Higgs Data
Creators: name: Das, Arindam
name: Dev, P. S. Bhupal
name: Kim, C. S.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We use the LHC Higgs data to derive updated constraints on electroweak-scale sterile neutrinos that naturally occur in many low-scale seesaw extensions of the Standard Model to explain the neutrino masses. We also analyze the signal sensitivity for a new final state involving a single charged lepton and two jets with missing energy, which arises from the decay of sterile neutrinos produced through the Higgs and $W,Z$ boson mediated processes at the LHC. Future prospects of these sterile neutrino signals in precision Higgs measurements, as well as at a future 100 TeV collider, are also discussed.
description: 21 pages, 6 figures, typos fixed, reference added, matched journal version in PRD
The Differing Relationships Between Size, Mass, Metallicity and Core Velocity Dispersion of Central and Satellite Galaxies
Creators: name: Spindler, Ashley
name: Wake, David
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study the role of environment in the evolution of central and satellite galaxies with the Sloan Digital Sky Survey. We begin by studying the size-mass relation, replicating previous studies, which showed no difference between the sizes of centrals and satellites at fixed stellar mass, before turning our attention to the size-core velocity dispersion ($σ_0$) and mass-$σ_0$ relations. By comparing the median size and mass of the galaxies at fixed velocity dispersion we find that the central galaxies are consistently larger and more massive than their satellite counterparts in the quiescent population. In the star forming population we find there is no difference in size and only a small difference in mass. To analyse why these difference may be present we investigate the radial mass profiles and stellar metallicity of the galaxies. We find that in the cores of the galaxies there is no difference in mass surface density between centrals and satellites, but there is a large difference at larger radii. We also find almost no difference between the stellar metallicity of centrals and satellites when they are separated into star forming and quiescent groups. Under the assumption that $σ_0$ is invariant to environmental processes, our results imply that central galaxies are likely being increased in mass and size by processes such as minor mergers, particularly at high $σ_0$, while satellites are being slightly reduced in mass and size by tidal stripping and harassment, particularly at low $σ_0$, all of which predominantly affect the outer regions of the galaxies.
description: 15 pages, 11 figures, accepted to MNRAS
Analyse und Beurteilung von Kostenstruktur und Effizienz in der VZ Depotbank AG
Creators: name: Imhof, Sorin-Serafin
Publisher: name: My University
Year: 2013
Subjects: subject: Effizienz
subject: Rentabilität
subject: Kosten
subject: Cost-Controlling
subject: 330 - Wirtschaft

description: Bei der Analyse der einzelnen Teams bezüglich Rentabilität und Effizienz über die Jahre 2010-2012 hat sich gezeigt, dass es Teams gibt, die sehr gut unterwegs sind und andere, die mit einer negativen Entwicklung zu kämpfen haben und grosse Optimierungspotentiale aufweisen. (Beitrag ist nur für FHNW Mitarbeitende sichtbar)
Spatial and temporal variations of the fine-structure constant in the Finslerian universe
Creators: name: Li, Xin
name: Lin, Hai-Nan
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Recent observations show that the electromagnetic fine-structure constant, $α_e$, may vary with space and time. In the framework of Finsler spacetime, we propose here an anisotropic cosmological model, in which both the spatial and temporal variations of $α_e$ are allowed. Our model naturally leads to the dipole structure of $α_e$, and predicts that the dipole amplitude increases with time. We fit our model to the most up-to-date measurements of $α_e$ from the quasar absorption lines. It is found that the dipole direction points towards $(l,b)=(330.2^\circ\pm7.3^\circ,-13.0^\circ\pm5.6^\circ)$ in the galactic coordinates, and the anisotropic parameter is $b_0=(0.47\pm 0.09) \times10^{-5}$, which corresponds to a dipole amplitude $(7.2\pm 1.4)\times 10^{-8}$ at redshift $z=0.015$. This is well consistent with the upper limit of the variation of $α_e$ measured in the Milky Way. We also fit our model to the Union2.1 type Ia supernovae, and find that the preferred direction of Union2.1 is well consistent with the dipole direction of $α_e$.
description: 11 pages, accepted by Chinese Physics C
Conformal and Weyl-Einstein gravity: Classical geometrodynamics
Creators: name: Kiefer, Claus
name: Nikolic, Branislav
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a new formulation for the canonical approach to conformal (Weyl-squared) gravity and its extension by the Einstein-Hilbert term and a nonminimally coupled scalar field. For this purpose we use a unimodular decomposition of the three-metric and introduce unimodular-conformal canonical variables. The important feature of this choice is that only the scale part of the three-metric and the rescaled trace part of the extrinsic curvature change under a conformal transformation. This significantly simplifies the constraint analysis and manifestly reveals the conformal properties of a theory that contains the conformally invariant Weyl-tensor term. The conformal symmetry breaking which occurs in the presence of the Einstein-Hilbert term and a nonconformally coupled scalar field can then be interpreted directly in terms of this scale and this trace. We also discuss in detail the generator for the conformal transformations. This new Hamiltonian formulation is especially suitable for quantization, which will be the subject of a separate paper.
description: 27 pages, conceptual clarifications added
Graded Polynomial Identities for Matrices with the Transpose Involution over an Infinite Field
Creators: name: Fonseca, Luís Felipe Gonçalves
name: de Mello, Thiago Castilho
Publisher: name: arXiv
Year: 2017
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: Let $F$ be an infinite field, and let $M_{n}(F)$ be the algebra of $n\times n$ matrices over $F$. Suppose that this algebra is equipped with an elementary grading whose neutral component coincides with the main diagonal. In this paper, we find a basis for the graded polynomial identities of $M_{n}(F)$ with the transpose involution. Our results generalize for infinite fields of arbitrary characteristic previous results in the literature which were obtained for the field of complex numbers and for a particular class of elementary G-gradings.
description: Some corrections in the text
Letter from H. G. Wells to Herbert Read, July 13, 1943
Creators: name: Wells, H. G. (Herbert George), 1866-1946
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Novelists
valueUri: http://id.worldcat.org/fast/1039684
subject: Novelists, English
valueUri: http://id.worldcat.org/fast/1039718
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Anarchists
valueUri: http://id.worldcat.org/fast/808401
subject: Satirists
valueUri: http://id.worldcat.org/fast/1105812
subject: Art historians
valueUri: http://id.worldcat.org/fast/815554
subject: Read, Herbert, 1893-1968
valueUri: http://id.worldcat.org/fast/1754386
subject: Wells, H. G. (Herbert George), 1866-1946
valueUri: http://id.worldcat.org/fast/37177
subject: Satirists, English
valueUri: http://id.worldcat.org/fast/1105814

description: Part of a collection of correspondence to Herbert Read from English writer H. G. Wells. Wells is most well known for his science fiction novels, but he also wrote biographies, history, social and political commentaries, and satire. In this letter, Wells compliments Read's "Politics of the Unpolitical" and expresses a wish to have a correspondence. He writes out a list of the items that he is sending with his letter (items not part of the collection), and in closing states that he feels he and Read are like-minded with regards to "great revolutionary projects".
Supplementary material. Fatty acids in Mexican adults: the 2012-2016 National Health and Nutrition Surveys
Creators: name: Landa-Gómez, Noemí
name: Barragán-Vázquez, Sofía
name: Olvera-Mayorga, Gabriela
name: Méndez-Gómez-Humarán, Ignacio
name: Carriquiry, Alicia
name: Da Silva Gomes, Fabio
name: Ramírez-Silva, Ivonne
Publisher: name: figshare
Year: 2023
Subjects: Public health nutrition

description: This online resource contains supplementary material for the article "Fatty acids in Mexican adults: the 2012-2016 National Health and Nutrition Surveys".
Possible Ways to Upgrade a Company's Competitive Advantage in the Industry of IT Professional Services
Creators: name: Gerber, Nathalie
Publisher: name: My University
Year: 2013
Subjects: subject: Industry
subject: competition
subject: clusters
subject: consulting
subject: IT
subject: services
subject: outsourcing
subject: software
subject: engineering
subject: competitiveness
subject: advantage
subject: microeconomics
subject: 330 - Wirtschaft
subject: 647 - Management öffentliche Verwaltung

description: The phenomenon of globalization is omnipresent, and many companies are changing the way they are doing business sooner or later as industry competition increases to an international level. How can a firm upgrade its competitive advantage in order to succeed in the globale market? (Beitrag ist nur für FHNW Mitarbeitende sichtbar)
Letter from H. G. Wells to Herbert Read, April 05, 1929
Creators: name: Wells, H. G. (Herbert George), 1866-1946
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Satirists, English
valueUri: http://id.worldcat.org/fast/1105814
subject: Art historians
valueUri: http://id.worldcat.org/fast/815554
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Anarchists
valueUri: http://id.worldcat.org/fast/808401
subject: Wells, H. G. (Herbert George), 1866-1946
valueUri: http://id.worldcat.org/fast/37177
subject: Novelists
valueUri: http://id.worldcat.org/fast/1039684
subject: Satirists
valueUri: http://id.worldcat.org/fast/1105812
subject: Read, Herbert, 1893-1968
valueUri: http://id.worldcat.org/fast/1754386
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Novelists, English
valueUri: http://id.worldcat.org/fast/1039718
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778

description: Part of a collection of correspondence to Herbert Read from English writer H. G. Wells. Wells is most well known for his science fiction novels, but he also wrote biographies, history, social and political commentaries, and satire.
Bistability in mushroom-type metamaterials
Creators: name: Fernandes, David E.
name: Silveirinha, Mário G.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Applied Physics (physics.app-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Here, we study the electromagnetic response of asymmetric mushroom-type metamaterials loaded with nonlinear elements. It is shown that near a Fano resonance these structures may have a strong tunable, bi-stable, and switchable response and enable giant nonlinear effects. Using an effective medium theory and full wave simulations, it is proven that the nonlinear elements may allow the reflection and transmission coefficients to follow hysteresis loops, and to switch the metamaterial between "go" and "no-go" states similar to an ideal electromagnetic switch.
description: 26 pages, 9 figures
Letter from Walter Shewring to Herbert Read, January 30, 1963
Creators: name: Shewring, Walter
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Anarchists
valueUri: http://id.worldcat.org/fast/808401
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Classicists
valueUri: http://id.worldcat.org/fast/863567
subject: Editors
valueUri: http://id.worldcat.org/fast/902475
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Read, Herbert, 1893-1968
valueUri: http://id.worldcat.org/fast/1754386
subject: Art historians
valueUri: http://id.worldcat.org/fast/815554
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Shewring, Walter
subject: Translators
valueUri: http://id.worldcat.org/fast/1154833

description: Part of a collection of letters to Sir Herbert Read from Walter Shewring. Shewring is most well known for his translation of Homer’s “Odyssey”, but in addition to translating, he also wrote essays and poetry. In this letter, Shewring gives feedback and advice on Latin in a piece of Read's work.
The Dynamics of Inhomogeneous Dark Energy
Creators: name: Tian, Shuxun
name: Cao, Shuo
name: Zhu, Zong-Hong
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In this paper, by analyzing the dynamics of the inhomogeneous quintessence dark energy, we find that the gradient energy of dark energy will oscillate and gradually vanish, which indicates the gradient energy of the scalar field present in the early universe does not affect the current dynamics of the universe. Moreover, with the decaying of gradient energy, there exists a possible mutual transformation between kinetic energy and gradient energy. In the framework of interacting dark energy models, we argue that inhomogeneous dark energy may have a significant effect on the evolution of the cosmic background, the investigation of which still requires fully relativistic $N$-body numerical simulations in the future.
description: 5 pages, accepted for publication in ApJ
Modeste Watershed Riparian Area Assessment
Creators: Fiera Biological Consulting Ltd.
Publisher: name: University of Alberta Library
Year: 2018

Riparian lands have substantial ecological, economic, and social value. The effective management of these habitats is a critical component in maintaining watershed health. However, because previous efforts to survey and assess riparian areas have focused on small-to-medium scales, the extent and condition of the majority of riparian areas in the province of Alberta is largely unknown. The North Saskatchewan Watershed Alliance, recognizing the importance of developing a geospatial method to assess riparian areas at large spatial extents, commissioned Fiera Biological Consulting to develop a remote sensing and GIS approach for inventorying and assessing riparian areas along shorelines in the Modeste subwatershed. In total, 1,708 km of shoreline was assessed in the Modeste subwatershed. (As cited on https://www.nswa.ab.ca/)
Verlgeichende Darstellung der anlagepolitischen Konzepte der Staatsfonds/Notenbank
Creators: name: Gugliotta, Massimo
name: Drobnjakovic, Goran
Publisher: name: My University
Year: 2014
Subjects: subject: Staatsfonds
subject: SNB
subject: Anlagepolitik
subject: Nachhaltigkeit
subject: Transparenz
subject: 330 - Wirtschaft

description: Staatsfonds und Nationalbanken verwalten riesige Vermögen ihres Landes und haben somit eine grosse Bedeutung für die Öffentlichkeit. Jedoch zeichnen sich diese Institutionen vor allem durch Intransparenz aus, was verhindert, dass ihre Anlagepolitik durch die Öffentlichkeit beurteilt werden kann. (Beitrag ist nur für FHNW Mitarbeitende sichtbar)
The evolution of gravitons in accelerating cosmologies: the case of extended gravity
Creators: name: Capozziello, Salvatore
name: De Laurentis, Mariafelicia
name: Nojiri, Shin'ichi
name: Odintsov, Sergei D.
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the production and evolution of cosmological gravitons showing how the cosmological background affects their dynamics. Besides, the detection of cosmological gravitons could constitute an extremely important signature to discriminate among different cosmological models. Here we consider the cases of scalar-tensor gravity and $f(R)$ gravity where it is demonstrated the amplification of graviton amplitude changes if compared with General Relativity. Possible observational constraints are discussed.
description: 15 pages, to be published in Physical Review D
Formation Scenario of the Progenitor of iPTF13bvn Revisited
Creators: name: Hirai, Ryosuke
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The formation scenario of the progenitor of iPTF13bvn has been revisited. iPTF13bvn is unique in the sense that a corresponding pre-supernova image has been identified. This has enabled us to strongly constrain the nature of its progenitor. From the pre-supernova image, light curve and the latest observations, it is currently widely accepted that the progenitor of iPTF13bvn was in a binary system. The fast decline in the light curve suggests a progenitor mass of $\sim3.5M_\odot$, and the upper limit on the remaining companion is $\sim20M_\odot$. Recent works suggest that binary evolution models involving common envelope episodes can satisfy all the observational constraints. We have examined the common envelope scenario based on latest knowledges on common envelope evolution. We have found that the common envelope scenario for the progenitor of iPTF13bvn seems not to be suitable since it can not explain the pre-supernova radius. We also propose an alternative model with a black hole companion. Stellar evolution calculations with a large black hole companion were carried out and succeeded in satisfying all observational constraints. However, more studies should be carried out to explain the origin of the large black hole companion.
description: accepted for publication in MNRAS, corrected typo and some references after proof
Finding strong lenses in CFHTLS using convolutional neural networks
Creators: name: Jacobs, Colin
name: Glazebrook, Karl
name: Collett, Thomas
name: More, Anupreeta
name: McCarthy, Christopher
Publisher: name: arXiv
Year: 2017
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We train and apply convolutional neural networks, a machine learning technique developed to learn from and classify image data, to Canada-France-Hawaii Telescope Legacy Survey (CFHTLS) imaging for the identification of potential strong lensing systems. An ensemble of four convolutional neural networks was trained on images of simulated galaxy-galaxy lenses. The training sets consisted of a total of 62,406 simulated lenses and 64,673 non-lens negative examples generated with two different methodologies. The networks were able to learn the features of simulated lenses with accuracy of up to 99.8% and a purity and completeness of 94-100% on a test set of 2000 simulations. An ensemble of trained networks was applied to all of the 171 square degrees of the CFHTLS wide field image data, identifying 18,861 candidates including 63 known and 139 other potential lens candidates. A second search of 1.4 million early type galaxies selected from the survey catalog as potential deflectors, identified 2,465 candidates including 117 previously known lens candidates, 29 confirmed lenses/high-quality lens candidates, 266 novel probable or potential lenses and 2097 candidates we classify as false positives. For the catalog-based search we estimate a completeness of 21-28% with respect to detectable lenses and a purity of 15%, with a false-positive rate of 1 in 671 images tested. We predict a human astronomer reviewing candidates produced by the system would identify ~20 probable lenses and 100 possible lenses per hour in a sample selected by the robot. Convolutional neural networks are therefore a promising tool for use in the search for lenses in current and forthcoming surveys such as the Dark Energy Survey and the Large Synoptic Survey Telescope.
description: 16 pages, 8 figures. Accepted by MNRAS
Working Capital - Potenzialanalyse zur Senkung des Lagerbestandes durch Vendor Managed Inventory (VMI)
Creators: name: Erb, Angela
Publisher: name: My University
Year: 2013
Subjects: subject: Working Capital
subject: Supply Chain Management
subject: Vendor Managed Inventory
subject: 330 - Wirtschaft
subject: 380 - Handel, Kommunikation, Verkehr

description: Im heutzutage hart umkämpften Wettbewerb steht jedes Unternehmen vor der Frage, wie es seine Effizienz und seinen Wert steigern kann. Eine Möglichkeit dazu bietet ein aktives Working Capital Management, worin auch das Bestandesmanagement eine wichtige Rolle spielt. (Beitrag ist nur für FHNW Mitarbeitende sichtbar)
SSRepL-ADHD: Adaptive Complex Representation Learning Framework for ADHD Detection from Visual Attention Tasks
Creators: name: Rehman, Abdul
name: Heldal, Ilona
name: Lin, Jerry Chun-Wei
Publisher: name: arXiv
Year: 2025
Subjects: subject: Machine Learning (cs.LG)
subject: Human-Computer Interaction (cs.HC)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Self Supervised Representation Learning (SSRepL) can capture meaningful and robust representations of the Attention Deficit Hyperactivity Disorder (ADHD) data and have the potential to improve the model's performance on also downstream different types of Neurodevelopmental disorder (NDD) detection. In this paper, a novel SSRepL and Transfer Learning (TL)-based framework that incorporates a Long Short-Term Memory (LSTM) and a Gated Recurrent Units (GRU) model is proposed to detect children with potential symptoms of ADHD. This model uses Electroencephalogram (EEG) signals extracted during visual attention tasks to accurately detect ADHD by preprocessing EEG signal quality through normalization, filtering, and data balancing. For the experimental analysis, we use three different models: 1) SSRepL and TL-based LSTM-GRU model named as SSRepL-ADHD, which integrates LSTM and GRU layers to capture temporal dependencies in the data, 2) lightweight SSRepL-based DNN model (LSSRepL-DNN), and 3) Random Forest (RF). In the study, these models are thoroughly evaluated using well-known performance metrics (i.e., accuracy, precision, recall, and F1-score). The results show that the proposed SSRepL-ADHD model achieves the maximum accuracy of 81.11% while admitting the difficulties associated with dataset imbalance and feature selection.
The dynamics of the local group as a probe of Dark Energy and Modified Gravity
Creators: name: Carlesi, Edoardo
name: Mota, David F.
name: Winther, Hans
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this work we study the dynamics of the Local Group (LG) within the context of cosmological models beyond General Relativity (GR). Using observable kinematic quantities to identify candidate pairs we build up samples of simulated LG-like objects drawing from $f(R)$, symmetron, DGP and quintessence N-body simulations together with their $Λ$CDM counterparts featuring the same initial random phase realisations. The variables and intervals used to define LG-like objects are referred to as Local Group model; different models are used throughout this work and adapted to study their dynamical and kinematic properties. The aim is to determine how well the observed LG-dynamics can be reproduced within cosmological theories beyond GR, We compute kinematic properties of samples drawn from alternative theories and $Λ$CDM and compare them to actual observations of the LG mass, velocity and position. As a consequence of the additional pull, pairwise tangential and radial velocities are enhanced in modified gravity and coupled dark energy with respect to $Λ$CDM, inducing significant changes to the total angular momentum and energy of the LG. For example, in models such as $f(R)$ and the symmetron this increase can be as large as $60\%$, peaking well outside of the $95\%$ confidence region allowed by the data. This shows how simple considerations about the LG dynamics can lead to clear small-scale observational signatures for alternative scenarios, without the need of expensive high-resolution simulations.
description: 14 pages, 3 figures. Accepted for publication in MNRAS
Letter from Adrian Stokes to Herbert Read, December 01, 1936
Creators: name: Stokes, Adrian, 1902-1972
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Stokes, Adrian, 1902-1972
valueUri: http://id.worldcat.org/fast/1733311
subject: Art historians
valueUri: http://id.worldcat.org/fast/815554
subject: Read, Herbert, 1893-1968
valueUri: http://id.worldcat.org/fast/1754386
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: Psychoanalysis
valueUri: http://id.worldcat.org/fast/1081235
subject: Art critics
valueUri: http://id.worldcat.org/fast/815508
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Painters
valueUri: http://id.worldcat.org/fast/1050530
subject: Anarchists
valueUri: http://id.worldcat.org/fast/808401
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945

description: Part of a collection of correspondence between Adrian Stokes and Herbert Read spanning from 1934-1962. Stokes was a painter and art critic who also had an interest in psychoanalysis. It was largely due to his efforts and work that the small fishing port of St. Ives became a centre of modernist art culture. In this letter Stokes discusses Transcendentalism, Read's upcoming book, and Read's health.
Constraints on Bygone Nucleosynthesis of Accreting Neutron Stars
Creators: name: Meisel, Zach
name: Deibel, Alex
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Nuclear burning near the surface of an accreting neutron star produces ashes that, when compressed deeper by further accretion, alter the star's thermal and compositional structure. Bygone nucleosynthesis can be constrained by the impact of compressed ashes on the thermal relaxation of quiescent neutron star transients. In particular, Urca cooling nuclei pairs in nuclear burning ashes, which cool the neutron star crust via neutrino emission from electron-capture/beta-decay cycles, provide signatures of prior nuclear burning over the ~century timescales it takes to accrete to the electron-capture depth of the strongest cooling pairs. Using crust cooling models of the accreting neutron star transient MAXI J0556-332, we show that this source likely lacked Type I X-ray bursts and superbursts >120 years ago. Reduced nuclear physics uncertainties in rp-process reaction rates and electron-capture ft-values for low-lying transitions will improve nucleosynthesis constraints using this technique.
description: Accepted to the Astrophysical Journal
A combined-probability space and (un)certainty relations for a finite-level quantum system
Creators: name: Sehrawat, Arun
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Born rule provides a probability vector (distribution) with a quantum state for a measurement setting. For two settings, we have a pair of vectors from the same quantum state. Each pair forms a combined-probability vector that obeys certain quantum constraints, which are triangle inequalities in our case. Such a restricted set of combined vectors, titled combined-probability space, is presented here for a $d$-level quantum system (qudit). The combined space turns out a compact convex subset of a Euclidean space, and all its extreme points come from a family of parametric curves. Considering a suitable concave function on the combined space to estimate the uncertainty, we deliver an uncertainty relation by finding its global minimum at the curves for a qudit. If one chooses an appropriate concave (or convex) function, then there is no need to search for the absolute minimum (maximum) on the whole space, it will be at the parametric curves. So these curves are quite useful for establishing an uncertainty (or a certainty) relation for a general pair of settings. In the paper, we also demonstrate that many known tight (un)certainty relations for a qubit can be obtained with the triangle inequalities.
description: 22 pages, 2 figures. More details are added in version 2
Extension of photon surfaces and their area: Static and stationary spacetimes
Creators: name: Yoshino, Hirotaka
name: Izumi, Keisuke
name: Shiromizu, Tetsuya
name: Tomikawa, Yoshimune
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We propose a new concept, the transversely trapping surface (TTS), as an extension of the static photon surface characterizing the strong gravity region of a static/stationary spacetime in terms of photon behavior. The TTS is defined as a static/stationary timelike surface $S$ whose spatial section is a closed two-surface, such that arbitrary photons emitted tangentially to $S$ from arbitrary points on $S$ propagate on or toward the inside of $S$. We study the properties of TTSs for static spacetimes and axisymmetric stationary spacetimes. In particular, the area $A_0$ of a TTS is proved to be bounded as $A_0\le 4π(3GM)^2$ under certain conditions, where $G$ is the Newton constant and $M$ is the total mass. The connection between the TTS and the loosely trapped surface proposed by us [arXiv:1701.00564] is also examined.
description: 22 pages, 4 figures, title slightly modified, discussion and references added, published version
Two-Local derivations on associative and Jordan matrix rings over commutative rings
Creators: name: Ayupov, Shavkat
name: Arzikulov, Farhodjon
Publisher: name: arXiv
Year: 2017
Subjects: subject: Rings and Algebras (math.RA)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 16W25 46L57 47B47 16W25, 46L57, 47B47, 17C65

description: In the present paper we prove that every 2-local inner derivation on the matrix ring over a commutative ring is an inner derivation and every derivation on an associative ring has an extension to a derivation on the matrix ring over this associative ring. We also develop a Jordan analog of the above method and prove that every 2-local inner derivation on the Jordan matrix ring over a commutative ring is a derivation.
description: 19 pages, Linear Algebra and its Applications 2017
Oscillation of solar radio emission at coronal acoustic cut-off frequency
Creators: name: Pylaev, O. S.
name: Zaqarashvili, T. V.
name: Brazhenko, A. I.
name: Melnik, V. N.
name: Hanslmeier, A.
name: Panchenko, M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Recent SECCHI COR2 observations on board STEREO-A spacecraft have detected density structures at a distance of 2.5--15~R propagating with periodicity of about 90~minutes. The observations show that the density structures probably formed in the lower corona. We used the large Ukrainian radio telescope URAN-2 to observe type IV radio bursts in the frequency range of 8--32~MHz during the time interval of 08:15--11:00~UT on August 1, 2011. Radio emission in this frequency range originated at the distance of 1.5--2.5 R according to the Baumbach-Allen density model of the solar corona. Morlet wavelet analysis showed the periodicity of 80~min in radio emission intensity at all frequencies, which demonstrates that there are quasi-periodic variations of coronal density at all heights. The observed periodicity corresponds to the acoustic cut-off frequency of stratified corona at a temperature of 1~MK. We suggest that continuous perturbations of the coronal base in the form of jets/explosive events generate acoustic pulses, which propagate upwards and leave the wake behind oscillating at the coronal cut-off frequency. This wake may transform into recurrent shocks due to the density decrease with height, which leads to the observed periodicity in the radio emission. The recurrent shocks may trigger quasi-periodic magnetic reconnection in helmet streamers, where the opposite field lines merge and consequently may generate periodic density structures observed in the solar wind.
description: 10 pages, 6 figures, accepted in A&A