cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Energy in Fourth Order Gravity
Creators: name: Avalos, Rodrigo
name: Lira, Jorge H.
name: Marque, Nicolas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 53A35 (Primary), 83D05 (Secondary)

description: In this paper we make a detailed analysis of conservation principles in the context of a family of fourth-order gravitational theories generated via a quadratic Lagrangian. In particular, we focus on the associated notion of energy and start a program related to its study. We also exhibit examples of solutions which provide intuitions about this notion of energy which allows us to interpret it, and introduce several study cases where its analysis seems tractable. Finally, positive energy theorems are presented in restricted situations.
description: 5 figures Update on the 17/07/22: correcting typos, streamlining the paper, taking into account/answering interesting questions asked to the authors during conferences Update on the 23/01/2024 : correction of typos, modifications suggested by reviewers for publication
Necessary condition for information transfer under simulated parity-time-symmetric evolution
Creators: name: Lakkaraju, Leela Ganesh Chandra
name: Mal, Shiladitya
name: De, Aditi Sen
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Parity-time (PT) symmetric quantum theory can broaden the scope of quantum dynamics beyond unitary evolution which may lead to numerous counter-intuitive phenomena, including single-shot discrimination of non-orthogonal states, faster evolution of state than the standard quantum speed limit, and violation of no-signaling principle. On the other hand, PT-symmetric evolution can be realized as reduced dynamics of a subsystem in real experiments within the scope of standard quantum theory. In this experimental setup, if one side of a composite system is evolved according to a PT-symmetric way, a non-trivial information transfer can happen, i.e., the operation performed at one side can be gathered by the other side. By considering an arbitrary shared state between two parties situated in two distant locations and arbitrary measurements, we show that the PT-symmetric evolution of the reduced subsystem at one side is not sufficient for this information transfer to occur. Specifically, we prove that the information transfer can only happen when the density matrix and the corresponding measurements contain complex numbers. Moreover, we connect the entanglement content of the shared state with the efficacy of information transfer. We find evidence that the task becomes more efficient with the increase of dimension.
description: v1: 7 + epsilon pages, 3 figures; v2: 23 pages, 2 figures, title changed and close to the published version
L’éducation à la prévention des risques électriques au collège en Algérie et difficultés rencontrées par les enseignants des sciences physiques
Creators: name: OUARZEDDINE, AMMAR
Publisher: name: Educational Journal of the University of Patras UNESCO Chair
Year: 2019
Subjects: Electrical risks, domestic electricity, scientific education, prevention, conceptions, teachers

description: Electrical safety education is an important and universal educational goal. Effective acquisition, by pupils, of the fundamental notions governing this preventive education depends, largely, on the teachers' conceptions related to the domestic electricity. This communication concerns an investigation of the conceptions of the teachers of the physical sciences of the college of Algeria relating to the basic’s notions presented in the contents of the electrical safety. The data obtained highlight the dominant presence of erroneous conceptions incompatible with the scientific knowledge of electricity. These conceptions consist mainly to transposing the characteristics of the continuous electric current to that of the alternative current of the domestic electricity. Thus, these conceptions can represent obstacles to the effective teaching and learning of the concepts on which this type of scientific education is based. To overcome the difficulties raised, the adaptation and reinforcement of the initial and continuous scientific training of teachers in college according to the content of the electrical safety education is necessary in order to ensure a proper didactic transposition of the knowledge in question.
description: Educational Journal of the University of Patras UNESCO Chair, Vol. 6, N. 1 (2019) - Colloque SIEST Méditerranée, Patras 2019
Stereomicroscopic and Fourier Transform Infrared (FTIR) Spectroscopic Characterization of the Abundance, Distribution and Composition of Microplastics in the Beaches of Qingdao, China
Creators: name: Pervez, Rashid
name: Wang, Yonghong
name: Mahmood, Qaisar
name: Jattak, Zafarullah
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Microplastic pollution is considered to be a major coastal environmental issue worldwide, and studies have confirmed the ubiquitous nature of microplastics on many beaches. To best of our knowledge, no previous study on microplastic pollution has been conducted in the present study area to date. This study examined the microplastic abundance, polymer type, size, shape and color in the sediments of Liuqinghewan Bathing Beach and the fishing port beach of Qingdao, China. Microplastics (1–0.5, 0.5–0.25 and 0.25–0.125 mm) were extracted from beach sediments using a density separation method. Fourier transform infrared (FTIR) spectroscopy was used to determine the chemical composition of the plastics while physical characteristics (size, shape, and color) of microplastics were observed using a stereomicroscope. The average microplastic abundance values with the grain size ranges from 1 to 0.125 mm at Liuqinghewan Bathing Beach and at the fishing port beach were approximately 208 ± 3.5 and 299 ± 5.7 microplastics per kg of dry sand, respectively. The number of microplastic particles with the grain size from 0.25 to 0.125 mm was significantly higher than for the other grain sizes. Microplastics were mainly multicolor fibers in all samples making up a large proportion that exceeded 97%. On the basis of FTIR analysis, the microplastics were shown to be composed of polypropylene and polystyrene at both sites. Microplastic characteristics used to identify their origin revealed high development and industrialization predict the non-point source of microplastics related to their hydrodynamic and geographical conditions. Assessing the distribution and characterization of microplastics on sandy beaches of some regions is not novel but a rather common study. However, the outcomes of current study furnish valuable and novel data for the evaluation of microplastic concentrations in beach sediments, environmental risks in China, and a baseline for future analysis.
Exterior Algebras Related to the Quantum Group O_q(3)$
Creators: name: Heckenberger, I.
name: Schueler, A.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: For the 9-dimensional bicovariant differential calculi on the Hopf algebra $O(O_q(3))$ several kinds of exterior algebras are examined. The corresponding dimensions, bicovariant subbimodules and eigenvalues of the antisymmetrizer are given. Exactly one of the exterior algebras studied by the authors has a unique left invariant form with maximal degree.
description: 10 pages, LaTeX209, presented at the 7th Colloquium "Quantum Groups and Integrable Systems", Prague, June 1998
Additional file 2 of Improved reference genome of the arboviral vector Aedes albopictus
Creators: name: Palatini, Umberto
name: Masri, Reem A.
name: Cosme, Luciano V.
name: Koren, Sergey
name: Thibaud-Nissen, Françoise
name: Biedler, James K.
name: Krsticevic, Flavia
name: J. Spencer Johnston
name: Halbach, Rebecca
name: Crawford, Jacob E.
name: Antoshechkin, Igor
name: Anna-Bella Failloux
name: Pischedda, Elisa
name: Marconcini, Michele
name: Ghurye, Jay
name: Arang Rhie
name: Atashi Sharma
name: Karagodin, Dmitry A.
name: Jenrette, Jeremy
name: Gamez, Stephanie
name: Miesen, Pascal
name: Masterson, Patrick
name: Caccone, Adalgisa
name: Sharakhova, Maria V.
name: Zhijian Tu
name: Papathanos, Philippos A.
name: Rij, Ronald P. Van
name: Akbari, Omar S.
name: Powell, Jeffrey
name: Phillippy, Adam M.
name: Bonizzoni, Mariangela
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Document containing supplementary tables S1 to S8.
Self-Organized Short-Term Memories
Creators: name: Coppersmith, S. N.
name: Jones, T. C.
name: Kadanoff, L. P.
name: Levine, A.
name: McCarten, J. P.
name: Nagel, S. R.
name: Venkataramani, S. C.
name: Wu, Xinlei
Publisher: name: arXiv
Year: 1996
Subjects: subject: Condensed Matter (cond-mat)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We report short-term memory formation in a nonlinear dynamical system with many degrees of freedom. The system ``remembers'' a sequence of impulses for a transient period, but it coarsens and eventually ``forgets'' nearly all of them. The memory duration increases as the number of degrees of freedom in the system increases. We demonstrate the existence of these transient memories in a laboratory experiment.
description: Significantly revised version with additional authors, accepted by PRL. 13 pages, 4 figures. Postscript version with higher resolution figures available at ftp://haber.uchicago.edu/pub/memories.ps
The Use of Platelet Rich Plasma in the Treatment of Dry Eye Syndrome by Meibomian Gland Dysfunction
Creators: name: Edaes, Felipe Sanches
name: Ferreira, Eliana Cláudia Perroud Morato
Publisher: name: figshare
Year: 2021
Subjects: subject: 111301 Ophthalmology
subject: FOS: Clinical medicine
subject: 110499 Complementary and Alternative Medicine not elsewhere classified
subject: Hematology
subject: Immunology
subject: Diseases
subject: 110202 Haematology

description: The Dry Eye Syndrome by Meibomian Gland Dysfunction occurs by a deficiency in the production of the lipid lacrimal content, resulting in a decrease of the time before rupture of the lacrimal film, which evaporates way quicker and generates a consequent lubrication deficiency, resulting in inflammation and damage to the ocular surface. The treatment consists in the use of lubricants eye drops, however, it doesn't exist an eye drop that contains the essential components present in tears, as growth factors, vitamins and immunoglobulins, besides containing preservatives and stabilizers that can induce toxic and allergic reactions. As an alternative, there is the PRP, a blood product rich in platelets that is capable of stimulating cellular growth and functioning, assisting in the healing process, relieving the signs and symptoms, improving patients' quality of life.
title: Gold nanoparticle-mediated DNA origami nanoarchitectures
Creators: name: Peil, Andreas
Publisher: name: Universität Stuttgart
Year: 2024
Subjects: subject: 500
subject: 530
subject: 540
subject: 570

description: Since its origin in the 1980s, DNA (deoxyribonucleic acid) nanotechnology has established itself as a captivating nanofabrication technique with ever increasing impact that combines aspects from physics, chemistry, and biology to construct artificial nanosystems by means of molecular self assembly. Within the field of DNA nanotechnology, the DNA origami technique represents one of the most versatile fabrication tools to craft functional two-dimensional (2D) and three-dimensional (3D) nanostructures from the bottom up. These structures offer precisely tailored geometries along with programmable functions, featuring positional addressability with sub-5 nm resolution and exceptional spatiotemporal accuracy. This thesis discusses strategies to employ the DNA origami technique to assemble intricate hybrid nanosystems with synergistically integrated gold nanoparticles (AuNPs). The AuNPs take over different roles; they grant (i) structural and (ii) functional features and enable the (iii) optical monitoring of the systems. This approach allows the fabrication of nanostructures piece by piece to explore their structural and functional properties at the nanoscale in detail. The first publication covers different strategies for the hierarchical assembly of topological DNA origami structures using a AuNP-templated self-assembly approach. The assembly of [2], [3], and [4]catenanes with interconnecting AuNPs is elucidated. The AuNPs can be controllably released to disconnect the individual rings, leaving only the mechanical bond of the catenane chain. In the second publication, a dynamic AuNP-DNA origami gear system is presented that is designed to emulate a planetary gearset with precise spatiotemporal control over its rotation dynamics. The AuNPs serve three crucial tasks. They (i) structurally link the origami ring modules, (ii) mediate the rotation and (iii) enable the real time optical tracking of the rotation via fluorescence spectroscopy. The system enables tightly orchestrated and programmable bidirectional rotations. In the third publication, reconfigurable chiral metastructures comprising multiple plasmonic particles that are accurately positioned in a helical manner around a DNA origami template are discussed. The implementation of a DNA ‘swingarm strategy’ enables the simultaneous and efficient relocation of multiple closely spaced AuNPs over large distances to precisely tune the chiroptical response of the system. The presented publications illustrate the beneficial synergies between DNA origami systems and rationally integrated AuNPs with the aim to advance and expand the application spectrum of these hybrid nanosystems within their scientific disciplines.
Distributed Ledger Technology for IoT: Parasite Chain Attacks
Creators: name: Cullen, Andrew
name: Ferraro, Pietro
name: King, Christopher
name: Shorten, Robert
Publisher: name: arXiv
Year: 2019
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Directed Acyclic Graph (DAG) based Distributed Ledgers can be useful in a number of applications in the IoT domain. A distributed ledger should serve as an immutable and irreversible record of transactions, however, a DAG structure is a more complicated mathematical object than its blockchain counterparts, and as a result, providing guarantees of immutability and irreversibility is more involved. In this paper, we analyse a commonly discussed attack scenario known as a parasite chain attack for the IOTA Foundation DAG based ledger. We analyse the efficacy of IOTA core MCMC algorithm using a matrix model and present an extension which improves the ledger resistance to these attacks.
Another homogeneous, non-bihomogeneous Peano continuum
Creators: name: Kuperberg, Greg
Publisher: name: arXiv
Year: 1997
Subjects: subject: General Topology (math.GN)
subject: FOS: Mathematics

description: K. Kuperberg found a locally connected, finite-dimensional continuum which is homogeneous but not bihomogeneous. We give a similar but simpler example. Like previous constructions, the example is locally a Cartesian product of Menger spaces. The new idea is to choose a fundamental group in which not every element is conjugate to its inverse.
description: 3 pages
Ground-based Pa$α$ Narrow-band Imaging of Local Luminous Infrared Galaxies II: Bulge Structure And Star Formation Activity
Creators: name: Tateuchi, Ken
name: Motohara, Kentaro
name: Konishi, Masahiro
name: Takahashi, Hidenori
name: Kitagawa, Yutaro
name: Kato, Natsuko
name: Todo, Soya
name: Komugi, Shinya
name: Ohsawa, Ryou
name: Doi, Mamoru
name: Yoshii, Yuzuru
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present properties of two types of bulges (classical- and pseudo- bulges) in 20 luminous infrared galaxies (LIRGs) observed in the near infrared of the $H$, $K_s$ and 1.91$μ$m narrow-band targeting at the hydrogen Pa$α$ emission line by the University of Tokyo Atacama Observatory (TAO) 1.0 m telescope. To classify the two types of bulges, we first perform a two-dimensional bulge-disk decomposition analysis in the $K_\mathrm{s}$-band images. The result shows a tentative bimodal distribution of Sérsic indices with a separation at $\log(n_b)\sim0.5$, which is consistent with that of classical and normal galaxies. We next measure extents of the distribution of star forming regions in Pa$α$ emission line images, normalized with the size of the bulges, and find that they decrease with increasing Sérsic indices. These results suggest that star-forming galaxies with classical bulges have compact star forming regions concentrated within the bulges, while those with pseudobulges have extended star forming regions beyond the bulges, suggesting that there are different formation scenarios at work in classical and pseudobulges.
description: 10 pages, 25 figures, 1 tables, accepted for publication in PASJ
Adams' cobar construction as a monoidal $E_{\infty}$-coalgebra model of the based loop space
Creators: name: Medina-Mardones, Anibal M.
name: Rivera, Manuel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 57T30, 55P35, 18N70, 55U10, 55N45, 55S05

description: We prove that the classical map comparing Adams' cobar construction on the singular chains of a pointed space and the singular cubical chains on its based loop space is a quasi-isomorphism preserving explicitly defined monoidal $E_\infty$-coalgebra structures. This contribution extends to its ultimate conclusion a result of Baues, stating that Adams' map preserves monoidal coalgebra structures.
description: Final version
title: Glyceria plicata
title: Gefalteter Schwaden (Glyceria plicata)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 3 Bilder des Gefalteten Schwadens.
PEDAGOGICAL AND PSYCHOLOGICAL CHARACTERISTICS OF DEVELOPING ACTIVE CIVIC COMPETENCIES IN DEAF AND HARD-OF-HEARING
Creators: name: Fozilov, Botirjon
Publisher: name: Zenodo
Year: 2025

description: The article discusses the implementation of children various initiatives within the framework of the pedagogical and psychological task of developing active civic competence in children with hearing impairments. It also emphasizes the importance of strengthening cooperation between teachers and educators in introducing deaf and hard-of-hearing children in grades 5-7 to civic positions and teaching them to express their personal thoughts and opinions.
title: The biochar and dung regulation on soil methane oxidation in grasslands
Creators: name: Zhao, Qingzhou
Publisher: name: Griffith University
Year: 2023
Subjects: subject: biochar
subject: livestock dung
subject: methane oxidation
subject: rare earth element switch
subject: syntrophic microorganism

description: Currently, the global warming issue caused by greenhouse gases such as methane has seriously challenged human beings and received extensive attention. As the vital biological sink of methane, grassland soil could efficiently control methane emissions through methane oxidation mediated by methanotrophs. In grazed grassland, amendments of biochar and livestock dung have been considered important measures of soil management and development. However, studies into how these exogenous amendments regulate soil methane have focused on the monitoring of methane fluxes while there were few studies about the microbial function and metabolism of the methanotroph community. In particular, studies about biochar and dung effects on atmospheric methanotrophs and anaerobic methanotrophs are less extensive. To address this issue, this thesis employs field collection combining with laboratory microcosm incubation and the use of chemical characterization, stable isotope probing, and molecular biological methods such as high-throughput sequencing, gene quantification, and Geochip to investigate the regulation mechanisms of biochar and dung amendments on grassland soil aerobic and anaerobic methane oxidation and corresponding methanotroph communities. The author also attempted to clarify the rare earth element switch controlling the syntrophic microorganisms with methanotrophs and the growth of syntrophic microorganisms such as the Denitrifier, Geobacter, and anammox. The responses of methane metabolic genes and community assembly of methanogens and methanotrophs to amendments of biochar and dung were also revealed.
title: Koeleria macrantha
title: Zierliches Schillergras (Koeleria macrantha)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 2 Bilder des Zierlichen Schillergrases.
Non-linear spin filter for non-magnetic materials at zero magnetic field
Creators: name: Marcellina, E.
name: Srinivasan, A.
name: Nichele, F.
name: Stano, P.
name: Ritchie, D. A.
name: Farrer, I.
name: Culcer, Dimitrie
name: Hamilton, A. R.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The ability to convert spin accumulation to charge currents is essential for applications in spintronics. In semiconductors, spin-to-charge conversion is typically achieved using the inverse spin Hall effect or using a large magnetic field. Here we demonstrate a general method that exploits the non-linear interactions between spin and charge currents to perform all-electrical, rapid and non-invasive detection of spin accumulation without the need for a magnetic field. We demonstrate the operation of this technique with ballistic GaAs holes as a model system with strong spin-orbit coupling, in which a quantum point contact provides the non-linear energy filter. This approach is generally applicable to electron and hole systems with strong spin orbit coupling.
title: Festuca heterophylla
title: Verschiedenblättriger Schwingel (Festuca heterophylla)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 2 Bilder des Verschiedenblättrigen Schwingels.
Q&A MAESTRO: Q&A Post Recommendation for Fixing Java Runtime Exceptions
Creators: name: Kimura, Yusuke
name: Akazaki, Takumi
name: Kikuchi, Shinji
name: Mahajan, Sonal
name: Prasad, Mukul R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Programmers often use Q&A sites (e.g., Stack Overflow) to understand a root cause of program bugs. Runtime exceptions is one of such important class of bugs that is actively discussed on Stack Overflow. However, it may be difficult for beginner programmers to come up with appropriate keywords for search. Moreover, they need to switch their attentions between IDE and browser, and it is time-consuming. To overcome these difficulties, we proposed a method, ``Q&A MAESTRO'', to find suitable Q&A posts automatically for Java runtime exception by utilizing structure information of codes described in programming Q&A website. In this paper, we describe a usage scenario of IDE-plugin, the architecture and user interface of the implementation, and results of user studies. A video is available at https://youtu.be/4X24jJrMUVw. A demo software is available at https://github.com/FujitsuLaboratories/Q-A-MAESTRO.
title: Eriophorum scheuchzeri
title: Scheuchzers Wollgras (Eriophorum scheuchzeri)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 8 Bilder des Scheuchzerschen Wollgrases.
The algebraic and Hamiltonian structure of the dispersionless Benney and Toda hierarchies
Creators: name: Fairlie, D. B.
name: Strachan, I. A. B.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: The algebraic and Hamiltonian structures of the multicomponent dispersionless Benney and Toda hierarchies are studied. This is achieved by using a modified set of variables for which there is a symmetry between the basic fields. This symmetry enables formulae normally given implicitly in terms of residues, such as conserved charges and fluxes, to be calculated explicitly. As a corollary of these results the equivalence of the Benney and Toda hierarchies is established. It is further shown that such quantities may be expressed in terms of generalized hypergeometric functions, the simplest example involving Legendre polynomials. These results are then extended to systems derived from a rational Lax function and a logarithmic function. Various reductions are also studied.
description: 29 pages, LaTeX
A network approach to cartel detection in public auction markets
Creators: name: Wachs, Johannes
name: Kertész, János
Publisher: name: arXiv
Year: 2019
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: General Economics (econ.GN)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Economics and business

description: Competing firms can increase profits by setting prices collectively, imposing significant costs on consumers. Such groups of firms are known as cartels and because this behavior is illegal, their operations are secretive and difficult to detect. Cartels feel a significant internal obstacle: members feel short-run incentives to cheat. Here we present a network-based framework to detect potential cartels in bidding markets based on the idea that the chance a group of firms can overcome this obstacle and sustain cooperation depends on the patterns of its interactions. We create a network of firms based on their co-bidding behavior, detect interacting groups, and measure their cohesion and exclusivity, two group-level features of their collective behavior. Applied to a market for school milk, our method detects a known cartel and calculates that it has high cohesion and exclusivity. In a comprehensive set of nearly 150,000 public contracts awarded by the Republic of Georgia from 2011 to 2016, detected groups with high cohesion and exclusivity are significantly more likely to display traditional markers of cartel behavior. We replicate this relationship between group topology and the emergence of cooperation in a simulation model. Our method presents a scalable, unsupervised method to find groups of firms in bidding markets ideally positioned to form lasting cartels.
Examining Affordable Housing Policy Impacts on Local Development Trends in California
Creators: Baldacci, Natalie
Publisher: name: Columbia University
Year: 2021
Subjects: Housing
Housing development
Zoning law
City planning

description: This Professional Capstone assists Professors Moira O’Neill and Eric Biber in their Comprehensive Assessment of Land Use Entitlements Study (CALES) to answer questions about whether and how land use regulation shapes housing development patterns in California, with a particular focus on affordable housing development, in high-cost areas. The lack of affordable housing is one of California’s most pressing planning issues. Since the 1970s, California’s state housing framework, the Housing Element, has addressed housing shortage issues by requiring local governments to accommodate their fair share of regionally needed housing. However, these efforts have historically failed as 97% of local governments have never met their production requirements every housing cycle. Recently, the California Legislature passed two packages of bills, the 2017/2018 Housing Package, to address ongoing housing shortage and systematic issues of the Housing Element. Notably, this package aims to hold jurisdictions accountable for non-compliance and accelerate residential development, specifically affordable housing production. This Professional Capstone Project explores trends in changes to local law that regulates planning in response to these recent state legislative reforms. To date, the CALES team has completed research and analysis of land use regulation and collected approval related data in 20 California Cities and Counties. This Professional Capstone assists this process by adding to existing planning code summaries within CALES. It also examines how recent state legislation and local ordinances potentially support increasing the affordable housing supply. This capstone then provides analysis of local changes to planning and zoning ordinances between 2018-2021 in CALES jurisdictions, finding that some jurisdictions revised the following: (1) establishing new inclusionary zoning ordinances and/or strengthening existing affordable housing policy initiatives; (2) establishing new zoning districts encouraging infill development, enacting new development standards promoting compact development, and/or loosening existing regulatory measures; (3) establishing new development approval procedures and/or revising existing approval measures that may ease barriers to residential development.
Local simultaneous state discrimination
Creators: name: Majenz, Christian
name: Ozols, Maris
name: Schaffner, Christian
name: Tahmasbi, Mehrdad
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum state discrimination is one of the most fundamental problems studied in quantum information theory. Applications range from channel coding to metrology and cryptography. In this work, we introduce a new variant of this task: Local Simultaneous State Discrimination (LSSD). While previous distributed variants of the discrimination problem always allowed some communication between the parties to come up with a joint answer, the parties in LSSD cannot communicate and have to simultaneously answer correctly. This simultaneity implies, e.g., that for classical states, the problem does not trivialize to a non-distributed distinguishing task. While interesting in its own right, this problem also arises in quantum cryptography. After introducing the problem, we give a number of characterization results. We give examples showing that i) the optimal strategy for local discrimination need not coincide with the optimal strategy for LSSD, even for classical states, ii) an additional entangled resource can increase the optimal success probability in LSSD, and iii) stronger-than-quantum non-signalling resources can allow for a higher success probability in some cases, compared to strategies using entanglement. Finally, we show that finding the optimal strategy in (classical) 3-party LSSD is NP-hard.
title: Leymus arenarius
title: Gewöhnlicher Strandroggen (Leymus arenarius)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 2 Bilder des Gewöhnlichen Strandroggens.
Spin-conservation propensity rule for three-body recombination of ultracold Rb atoms
Creators: name: Haze, Shinsuke
name: D'Incao, José P.
name: Dorer, Dominik
name: Deiß, Markus
name: Tiemann, Eberhard
name: Julienne, Paul S.
name: Denschlag, Johannes Hecker
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We explore the physical origin and the general validity of a propensity rule for the conservation of the hyperfine spin state in three-body recombination. This rule was recently discovered for the special case of $^{87}$Rb with its nearly equal singlet and triplet scattering lengths. Here, we test the propensity rule for $^{85}$Rb for which the scattering properties are very different from $^{87}$Rb. The Rb$_2$ molecular product distribution is mapped out in a state-to-state fashion using REMPI detection schemes which fully cover all possible molecular spin states. Interestingly, for the experimentally investigated range of binding energies from zero to $\sim13\:\textrm{GHz}\times h$ we observe that the spin-conservation propensity rule also holds for $^{85}$Rb. From these observations and a theoretical analysis we derive an understanding for the conservation of the hyperfine spin state. We identify several criteria to judge whether the propensity rule will also hold for other elements and collision channels.
description: 10 pages, 9 figures, including Supplemental Material
The Huygens Principle of Angle-Resolved Photoemission
Creators: name: Moser, Simon
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Angle-resolved photoemission spectroscopy (ARPES) measures the interference of dipole allowed Coulomb wavelets from the individual orbital emitters that contribute to an electronic band. If Coulomb scattering of the outgoing electron is neglected, this Huygens view of ARPES simplifies to a Fraunhofer diffraction experiment, and the relevant cross-sections to orbital Fouriertransforms. This plane wave approximation (PWA) is surprisingly descriptive of photoelectron distributions, but fails to reproduce kinetic energy dependent final state effects like dichroism. Yet, Huygens principle of ARPES can be easily adapted to allow for distortion and phase shift of the outgoing Coulomb wave. This retains the strong physical intuition and low computational cost of the PWA, but naturally captures momentum dependent interference effects in systems that so far required treatment at the ab initio level, such as linear dichroism in Rashba systems BiAg2 and AgTe.
Nonlinear Hodge equations in vector bundles
Creators: name: Otway, Thomas H.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 58E15

description: A gauge-invariant form of the nonlinear Hodge equations is studied.
description: LaTeX, 23 pages. (A comparison function used in expressions (18)-(23) is redefined.)
title: Briza spec.
title: Zittergras (Briza spec.)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 4 Bilder des Zittergrases.
Parametric local stability condition of a multi-converter system
Creators: name: Jouini, Taouba
name: Dörfler, Florian
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optimization and Control (math.OC)
subject: Systems and Control (eess.SY)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We study local (also referred to as small-signal) stability of a network of identical DC/AC converters having a rotating degree of freedom. We develop a stability theory for a class of partitioned linear systems with symmetries that has natural links to classical stability theories of interconnected systems. We find stability conditions descending from a particular Lyapunov function involving an oblique projection onto the complement of the synchronous steady state set and enjoying insightful structural properties. Our sufficient and explicit stability conditions can be evaluated in a fully decentralized fashion, reflect a parametric dependence on the converter's steady-state variables, and can be one-to-one generalized to other types of systems exhibiting the same behavior, such as synchronous machines. Our conditions demand for sufficient reactive power support and resistive damping. These requirements are well aligned with practitioners' insights.
description: The manuscript will be rewritten and the results will be changed and merged in the following ArXiv draft: Steady state characterization and frequency synchronization of a multi-converter power system on high-order manifolds, [arXiv:2007.14064]
Counting Kernels in Directed Graphs with Arbitrary Orientations
Creators: name: Jartoux, Bruno
Publisher: name: arXiv
Year: 2022
Subjects: subject: Discrete Mathematics (cs.DM)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: G.2.2; G.2.1; F.2.2
subject: 05C69 (Primary) 05C20, 68R10 (Secondary)

description: A kernel of a directed graph is a subset of vertices that is both independent and absorbing (every vertex not in the kernel has an out-neighbour in the kernel). Not all directed graphs contain kernels, and computing a kernel or deciding that none exist is NP-complete even on low-degree planar digraphs. The existing polynomial-time algorithms for this problem all restrict both the undirected structure and the edge orientations of the input: for example, to chordal graphs without bidirectional edges (Pass-Lanneau, Igarashi and Meunier, Discrete Appl Math 2020) or to permutation graphs where each clique has a sink (Abbas and Saoula, 4OR 2005). By contrast, we count the kernels of a fuzzy circular interval graph in polynomial time, regardless of its edge orientations, and return a kernel when one exists. (Fuzzy circular graphs were introduced by Chudnovsky and Seymour in their structure theorem for claw-free graphs.) We also consider kernels on cographs, where we establish NP-hardness in general but linear running times on the subclass of threshold graphs.
description: 19 pages, 3 figures, redactional changes, to be published in Discrete Appl. Math
Another proof of the alternating sign matrix conjecture
Creators: name: Kuperberg, Greg
Publisher: name: arXiv
Year: 1997
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: Robbins conjectured, and Zeilberger recently proved, that there are 1!4!7!...(3n-2)!/n!/(n+1)!/.../(2n-1)! alternating sign matrices of order n. We give a new proof of this result using an analysis of the six-vertex state model (also called square ice) based on the Yang-Baxter equation.
description: 10 pages
CRYOGENIC-SEM INVESTIGATION OF CO2 HYDRATE MORPHOLOGIES
Creators: name: Camps, A.P
name: Milodowski, A.E.
name: Rochelle, C.A.
name: Lovell, M.A.
name: Williams, J.F.
name: Jackson, P.D.
Publisher: name: The University of British Columbia
Year: 2008

description: Gas hydrates occur naturally around the world in the shallow-marine geosphere, and have received diverse attention, crossing many disciplines, ranging from interest as a drilling hazard in the petroleum industry through to their role in the carbon cycle, and their possible contribution in past and present climate change. Carbon dioxide (CO2) hydrates also occur naturally on Earth in the Okinawa Trough, offshore Japan, and they could exist elsewhere in the solar system. Additionally, CO2 hydrates are being investigated for their potential to store large volumes of CO2 to reduce atmospheric emissions of greenhouse gases as a climate change mitigation strategy. Although research into hydrates has rapidly gained pace in more recent years their mineralogy and formation processes are still relatively poorly understood. Various imaging techniques have been used to study gas hydrates, such as Nuclear Magnetic Resonance; Magnetic Resonance Imaging; X-ray Computed Tomography and Scanning Electron Microscopy (SEM). We have investigated CO2 hydrates formed within the BGS laboratories, using a cryogenic-SEM. This investigation has produced various different hydrate morphologies resulting from different formation conditions. Morphologies range from well-defined euhedral crystals to acicular needles, and more complex, intricate forms. Cryogenic-SEM of these hydrates has yielded a wealth of information, and with further investigation of hydrate formed within different formation conditions we may begin to comprehend the complex growth mechanisms involved.
title: Implementing household heterogeneity in a multi-regional technology based energy-economic model : system analysis on distributional impacts of pan-European energy and environmental policies
Creators: name: Cunha Montenegro, Roland
Publisher: name: Stuttgart : Universität Stuttgart, Institut für Energiewirtschaft und Rationelle Energieanwendung
Year: 2024
Subjects: subject: 330
subject: 621.3

description: The European Union (EU) set ambitious targets for the reduction of greenhouse gases until 2030 in order to achieve the 1.5C objective of the Paris Agreement. Among the measures to reach this goal, carbon pricing is a promising one as it increases the costs of polluting activities and makes the use of clean technologies more attractive. While this mechanism is already used in energy-intensive sectors, such as energy conversion and chemicals, its application on the remaining sectors of the economy is treated with caution, since economical and social outputs are unclear and might jeopardize the long-term will to cut emissions. This work aims to add on understanding the socio-economic effects of a multi-regional carbon pricing scheme with focus on the household sector. It proposes that each EU Member State implements a national cap-and-trade system, where the carbon price is defined according to supply and demand of CO2 certificates. Furthermore, four revenue redistribution mechanisms are explored: reduced consumption taxes, reduced labor taxes, equal per capita redistribution and per capita redistribution according to income levels. For the analysis, a global Computable General Equilibrium model is expanded to represent distinct income groups. This feature allows for the model to assess not only economic effects, as GDP development, but also social implications, such as income distribution and tax burden across different households. Finally, it is possible to assess whether the analyzed policies lead to a double dividend, in which emissions are reduced and GDP increases, and even a social dividend, characterized by decreased income inequality. The results indicate that no revenue redistribution scheme lead to significant improvement in GDP, but each one helps decreasing certain negative aspects of pricing carbon. Reducing consumption and labor taxes lead to the highest employment levels among the analyzed policies, while per capita redistribution helps decreasing income inequality. Additionally, consumption of electricity and fossil-fuels varies according to redistribution mechanism, which is an important input for multi-model analysis.
title: Eriophorum latifolium
title: Breitblättriges Wollgras (Eriophorum latifolium)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 3 Bilder des Breitblättrigen Wollgrases.
Additional file 1 of Factors affecting the relationship between ionized and corrected calcium levels in peritoneal dialysis patients: a retrospective cross-sectional study
Creators: name: Morishita, Masamitsu
name: Maruyama, Yukio
name: Masatsugu Nakao
name: Matsuo, Nanae
name: Yudo Tanno
name: Ohkido, Ichiro
name: Ikeda, Masato
name: Yokoo, Takashi
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Marine Biology
subject: Science Policy

description: Additional file 1. Multiple regression analysis of iCa/cCa ratio without imputation. Using multiple regression analysis of the data without imputation, we confirmed that pH and weekly renal Kt/V were independent factors affecting iCa/cCa ratio.
Additional file 3 of Maternal low-intensity psychosocial telemental interventions in response to COVID-19 in Qatar: study protocol for a randomized controlled trial
Creators: name: Naja, Sarah
name: Elyamani, Rowaida
name: Chehab, Mohamad
name: Siddig, Mohamed
name: Al Ibrahim, Abdullah
name: Mohamad, Tagreed
name: Singh, Rajvir
name: Bougmiza, Iheb
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 3. Consent form.
Examination of computed aluminum grain boundary structures and interface energies that span the 5D space of crystallographic character
Creators: name: Homer, Eric R.
name: Hart, Gus L. W.
name: Owens, C. Braxton
name: Hensley, Derek
name: Spendlove, Jay
name: Serafin, Lydia Harris
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The space of possible grain boundary structures is vast, with 5 macroscopic, crystallographic degrees of freedom that define the character of a grain boundary. While numerous datasets of grain boundaries have examined this space in part or in full, we present a computed dataset of over 7304 unique aluminum grain boundaries in the 5D crystallographic space. Our sampling also includes a range of possible microscopic, atomic configurations for each unique 5D crystallographic structure, which total over 43 million structures. We present an overview of the methods used to generate this dataset, an initial examination of the energy trends that follow the Read-Shockley relationship, hints at trends throughout the 5D space, variations in GB energy when non-minimum energy structures are examined, and insights gained in machine learning of grain boundary energy structure-property relationships. This dataset, which is available for download, has great potential for insight into GB structure-property relationships.
description: 16 pages, 10 figures