cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Slamming the Golden Door: Canada-U.S. Migration Policy and Asylum Seekers
Creators: name: Falconer, Robert
Publisher: name: The School of Public Policy Publications
Year: 2019

description: In the past few weeks, the United States has either announced or considered noteworthy changes to refugee and asylum policies. On July 15, 2019, the Department of Homeland Security announced that asylum seekers passing through other countries on the way to the U.S. would be barred from claiming asylum, regardless of the merits of their claim, and would be deported to their home countries even if they qualified for refugee status, with few exceptions (Department of Homeland Security 2019). Three days later, it was reported that the Trump administration is considering drastically reducing the number of refugees it resettles from abroad for the coming year, including potentially shutting down its refugee resettlement program (Hesson 2019). Both of these policy changes have significant implications for Canada. This communiqué will focus on the first of these changes, referred to here as the “asylum bar”, while a second focuses on the potential shutdown of the U.S. resettlement program.
description: The School of Public Policy Publications, Vol 12 (2019)
THE ESTIMATION OF LINEAR DEMAND SYSTEM FOR BASIC TYPES OF MEAT
Creators: name: Janda, Karel
name: Janda, Karel
Publisher: name: Unknown
Year: 1994
Subjects: subject: Demand and Price Analysis
subject: regressions analysis
subject: demand system
subject: elasticities
subject: meat market

description: This paper empirically investigates the relevance of the standard economic theory of demand; as expressed in the concept of elasticities, in the period of economic transition from a centrally planned to a market economy.. From the econometric point of view, the. technical subject of this paper is an application of the multivariate regression model in the context of estimation of the linear system of demand equations. The results of this article confirm that in accordance with standard stylized facts the demand for a wide group of food such as meats is price inelastic. In a deeper disaggrega.tion to the level of individual kinds of meat, there exists, the potential for changes in demand dependent on price changes. The results of this project show that the Czech retail meat market behaved during the years of economic transition in a way consistent with the behaviour of a market economy as postulated by intuition, by economic theory and by empirical results from developed market.economies.
Water resources management and mining industry in arid and semi-arid regions
Creators: name: Loredo, Jorge
name: Sierra, Antonio Luis Marques
Publisher: name: figshare
Year: 2019
Subjects: subject: 90509 Water Resources Engineering
subject: FOS: Civil engineering
subject: 91405 Mining Engineering
subject: FOS: Environmental engineering

description: In general, modem mining practice and strict application of environmental regulations have limited the negative impacts of the past that still affect many historic mining djstricts in the world .. However, increasing water demand from the own mining industry and competing users, mainly from commercial agriculture, requires the development of strategies and a more integrated approach to water catchment management, as well as the use and application of new technologies for the sustainable management of them with mining activities located in arid and semiarid regions of the world. The legal access (water rights) to use water is a fundamental aspect of water catchment management. and the purpose ofthis use (agriculture, domestic, industrial, etc.) is generally defined along with any limitations on the use. In the case of arid and semi arid zones, the rainfall is often limited to one or two months of the year, resulting in very intense storms with strong erosive powers. The short but severe storm rainfall events may cause great erosion, for example in minining areas where vegetation has been removed exposing the soils, giving rise to severe sedimentation problems in adjacent areas. These storms also provide enough water lead to acid drainage generation in the e~posed rock in mining areas. Due to the fact that a basic consideration is the development of guidelines for water resources management at catchment level, in the same way as the management of mining impacts, a number of guidelines have been published in some countries to help mining companies and government agencies to predict and avoid these problems. A review of the past and current practices in arid and semiarid zones of the planet with significant mining industry is revised in this paper.
Critical behavior of a traffic flow model
Creators: name: Roters, L.
name: Lubeck, S.
name: Usadel, K. D.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The Nagel-Schreckenberg traffic flow model shows a transition from a free flow regime to a jammed regime for increasing car density. The measurement of the dynamical structure factor offers the chance to observe the evolution of jams without the necessity to define a car to be jammed or not. Above the jamming transition the dynamical structure factor exhibits for a given k-value two maxima corresponding to the separation of the system into the free flow phase and jammed phase. We obtain from a finite-size scaling analysis of the smallest jam mode that approaching the transition long range correlations of the jams occur.
description: 5 pages, 7 figures, accepted for publication in Physical Review E
11 exemplars: open education as social justice 2014-2017
Creators: name: Lambert, Sarah
Publisher: name: figshare
Year: 2019
Subjects: Education

description: The 11 exemplar cases were selected from a larger pool of studies identified as part of a 2014-2017 systematic review study. The systematic review sought to establish the extent that free open education programs including MOOCs enabled student equity and social inclusion. A total of 48 studies and reports were examined, representing diverse global programs reaching over 200,000 disadvantaged learners in both distance and blended learning settings. Many of these were staff and policy guides but 22 studies had been fully tested with students. As preparatory work for a social justice focussed book chapter, the data set of 22 studies fully tested with students was re-analysed using a new (2018) social-justice aligned definition of Open Education. Methodologically, this showed that it is possible to use the 2018 definition as a lens for research analysis. Practically, it clarified and allowed for the selection of 11 exemplars to be chosen as the focus for further writing and analysis. The cases with good outcomes that also showed two or more forms of social justice were selected as exemplars. This was undertaken to better explain the progress and redress of educational justice for regional, multi-lingual and female learners.
On the parity of ranks of Selmer groups II
Creators: name: Nekovar, Jan
Publisher: name: arXiv
Year: 2001
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: This paper is the same as ANT-0265, but with a few minor mistakes corrected. Let E be an elliptic curve over Q with good ordinary reduction at a prime p. We show that the parity of the (co)-rank of the p-Selmer group of E is as predicted by the conjecture of Birch and Swinnerton-Dyer.
Exponential Strong Converse for Successive Refinement with Causal Decoder Side Information
Creators: name: Zhou, Lin
name: Hero, Alfred
Publisher: name: arXiv
Year: 2019
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We consider the $k$-user successive refinement problem with causal decoder side information and derive an exponential strong converse theorem. The rate-distortion region for the problem can be derived as a straightforward extension of the two-user case by Maor and Merhav (2008). We show that for any rate-distortion tuple outside the rate-distortion region of the $k$-user successive refinement problem with causal decoder side information, the joint excess-distortion probability approaches one exponentially fast. Our proof follows by judiciously adapting the recently proposed strong converse technique by Oohama using the information spectrum method, the variational form of the rate-distortion region and Hölder's inequality. The lossy source coding problem with causal decoder side information considered by El Gamal and Weissman is a special case ($k=1$) of the current problem. Therefore, the exponential strong converse theorem for the El Gamal and Weissman problem follows as a corollary of our result.
Onthophagus (Onthophagus) dicax Balthasar 1966
Creators: name: Bezděk, Aleš
name: Hájek, Jiří
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Onthophagus
Onthophagus dicax

description: Onthophagus (Onthophagus) dicax Balthasar, 1966
 Onthophagus (s. str.) dicax Balthasar, 1966b: 45.
The holotype and one paratype (the allotype) are deposited in NMPC (ex coll. V. Balthasar):
HOLOTYPE (J): ‘Tanganyika / Dr. Szunyoghy [p] // Laiverero / 22.I.1960 [p] // Onthophagus / dicax n. sp. / 65 Balth. J [hw] / Holotypus [p, pink label]’.
PARATYPE (J): ‘Tanganyika / Dr. Szunyoghy [p] // Laiverero / 22.I.1960 [p] // Onthophagus / dicax n. sp. / 65 Balth. ♀ [hw] / Allotypus [p, pink label]’.
 Current status. Valid species.
description: Published as part of Bezděk, Aleš & Hájek, Jiří, 2013, Catalogue of type specimens of beetles (Coleoptera) deposited in the National Museum, Prague, Czech Republic, pp. 387-442 in Acta Entomologica Musei Nationalis Pragae 53 (1) on page 404, DOI: 10.5281/zenodo.5739743
A Spin-2 Conjecture on the Swampland
Creators: name: Klaewer, Daniel
name: Lust, Dieter
name: Palti, Eran
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider effective theories with massive fields that have spins larger than or equal to two. We conjecture a universal cutoff scale on any such theory that depends on the lightest mass of such fields. This cutoff corresponds to the mass scale of an infinite tower of states, signalling the breakdown of the effective theory. The cutoff can be understood as the Weak Gravity Conjecture applied to the Stückelberg gauge field in the mass term of the high spin fields. A strong version of our conjecture applies even if the graviton itself is massive, so to massive gravity. We provide further evidence for the conjecture from string theory.
description: 6 pages. v2. Added references
Four-wave mixing in degenerate atomic gases
Creators: name: Villain, P.
name: Ohberg, P.
name: Santos, L.
name: Sanpera, A.
name: Lewenstein, M.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the process of four-wave mixing (4WM) in ultracold degenerate atomic gases. In particular we address the problem of 4WM in boson-fermion mixtures. We develop an approximate description of such processes using asymptotic analysis of high order perturbation theory taking into account quantum statistics. We perform also numerical simulations of 4WM in boson-fermion mixtures and obtain an analytic and numerical estimate of the efficiency of the process.
description: 4 pages
Viral quasispecies quantitative analysis: a novel approach for appraising the immune tolerant phase of chronic hepatitis B virus infection
Creators: name: Wang, Mingjie
name: Chen, Li
name: Dong, MinHui
name: Li, Jing
name: Zhu, Beidi
name: Yang, Zhitao
name: Gong, Qiming
name: Han, Yue
name: Yu, Demin
name: Zhang, Donghua
name: Zoulim, Fabien
name: Zhang, Jiming
name: Zhang, Xinxin
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: Few non-invasive models were established for precisely identifying the immune tolerant (IT) phase from chronic hepatitis B (CHB). This study aimed to develop a novel approach that combined next-generation sequencing (NGS) and machine learning algorithms using our recently published viral quasispecies (QS) analysis package. 290 HBeAg positive patients from whom liver biopsies were taken were enrolled and divided into a training group (n = 148) and a validation group (n = 142). HBV DNA was extracted and QS sequences were obtained by NGS. Hierarchical clustering analysis (HCA) and principal component analysis (PCA) based on viral operational taxonomic units (OTUs) were performed to explore the correlations among QS and clinical phenotypes. Three machine learning algorithms, including K-nearest neighbour, support vector machine, and random forest algorithm, were used to construct diagnostic models for IT phase classification. Based on histopathology, 90 IT patients and 200 CHB patients were diagnosed. HBsAg titres for IT patients were higher than those of CHB patients (p < 0.001). HCA and PCA analysis grouped IT and CHB patients into two distinct clusters. The relative abundance of viral OTUs differed mainly within the BCP/precore/core region and was significantly correlated with liver inflammation and fibrosis. For the IT phase classification, all machine-learning models showed higher AUC values compared to models based on HBsAg, APRI, and FIB-4. The relative abundance of viral OTUs reflects the severity of liver inflammation and fibrosis. The novel QS quantitative analysis approach could be used to diagnose IT patients more precisely and reduce the need for liver biopsy.
China’s national carbon emissions trading scheme: lessons from the pilot emission trading schemes, academic literature, and known policy details
Creators: name: Stoerk, Thomas
name: Dudek, Daniel J.
name: Yang, Jia
Publisher: name: Taylor & Francis
Year: 2019
Subjects: Biophysics
Environmental Sciences not elsewhere classified
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Science Policy

description: Upon completion, China’s national emissions trading scheme (C-ETS) will be the largest carbon market in the world. Recent research has evaluated China’s seven pilot ETSs launched from 2013 on, and academic literature on design aspects of the C-ETS abounds. Yet little is known about the specific details of the upcoming C-ETS. This article combines currently understood details of China’s national carbon market with lessons learned in the pilot schemes as well as from the academic literature. Our review follows the taxonomy of Emissions Trading in Practice: A Handbook on Design and Implementation (Partnership for Market Readiness & International Carbon Action Partnership. (2016). Retrieved from www.worldbank.org): The 10 categories are: scope, cap, distribution of allowances, use of offsets, temporal flexibility, price predictability, compliance and oversight, stakeholder engagement and capacity building, linking, implementation and improvements. Key policy insightsAccurate emissions data is paramount for both design and implementation, and its availability dictates the scope of the C-ETS.The stakeholder consultative process is critical for effective design, and China is able to build on its extensive experience through the pilot ETSs.Current policies and positions on intensity targets and Clean Development Mechanism (CDM) credits constrain the market design of the C-ETS.Most critical is the nature of the cap. The currently discussed rate-based cap with ex post adjustment is risky. Instead, an absolute, mass-based emissions cap coupled with the conditional use of permits would allow China to maintain flexibility in the carbon market while ensuring a limit on CO2 emissions. Accurate emissions data is paramount for both design and implementation, and its availability dictates the scope of the C-ETS. The stakeholder consultative process is critical for effective design, and China is able to build on its extensive experience through the pilot ETSs. Current policies and positions on intensity targets and Clean Development Mechanism (CDM) credits constrain the market design of the C-ETS. Most critical is the nature of the cap. The currently discussed rate-based cap with ex post adjustment is risky. Instead, an absolute, mass-based emissions cap coupled with the conditional use of permits would allow China to maintain flexibility in the carbon market while ensuring a limit on CO2 emissions.
Low-Density Hydrodynamic Optical-Field-Ionized Plasma Channels Generated With An Axicon Lens
Creators: name: Shalloo, R. J.
name: Arran, C.
name: Picksley, A.
name: von Boetticher, A.
name: Corner, L.
name: Holloway, J.
name: Hine, G.
name: Jonnerby, J.
name: Milchberg, H. M.
name: Thornton, C.
name: Walczak, R.
name: Hooker, S. M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We demonstrate optical guiding of high-intensity laser pulses in long, low density hydrodynamic optical-field-ionized (HOFI) plasma channels. An axicon lens is used to generate HOFI plasma channels with on-axis electron densities as low as $n_e(0) = 1.5\times 10^{17}\, \mathrm{cm}^{-3}$ and matched spot sizes in the range $ 20 μ\mathrm{m} \lesssim W_M \lesssim 40 μ\mathrm{m}$. Control of these channel parameters via adjustment of the initial cell pressure and the delay after the arrival of the channel-forming pulse is demonstrated. For laser pulses with a peak axial intensity of $4 \times 10^{17}\, \mathrm{W\,cm}^{-2}$, highly reproducible, high-quality guiding over more than 14 Rayleigh ranges is achieved at a pulse repetition rate of 5 Hz, limited by the available channel-forming laser and vacuum pumping system. Plasma channels of this type would seem to be well suited to multi-GeV laser wakefield accelerators operating in the quasi-linear regime.
Transverse depinning and melting of a moving vortex lattice in driven periodic Josephson junction arrays
Creators: name: Marconi, Veronica I.
name: Dominguez, Daniel
Publisher: name: arXiv
Year: 1998
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the effect of thermal fluctuations in a vortex lattice driven in the periodic pinning of a Josephson junction array. The phase diagram current ($I$) vs. temperature ($T$) is studied. Above the critical current $I_c(T)$ we find a moving vortex lattice (MVL) with anisotropic Bragg peaks. For large currents $I\gg I_c(T)$, there is a melting transition of the MVL at $T_M(I)$. When applying a small transverse current to the MVL, there is no dissipation at low $T$. We find an onset of transverse vortex motion at a transverse depinning temperature $T_{tr}(I)
description: 4 pages, 4 figures, Figure 2 changed, added new references
A Unifying Field in Logics: Neutrosophic Logic, Neutrosophic Set, Neutrosophic Probability and Statistics (fourth edition)
Creators: name: Smarandache, Florentin
Publisher: name: arXiv
Year: 2001
Subjects: subject: General Mathematics (math.GM)
subject: FOS: Mathematics
subject: 00A30, 03B99, 60A99

description: In this book one makes an introduction to non-standard analysis in the first part, needed to the next four chapters in order to study the neutrosophics: 1. Neutrosophy - a new branch of philosophy. 2. Neutrosophic Logic - a unifying field in logics. 3. Neutrosophic Set - a unifying field in sets. 4. Neutrosophic Probability - a generalization of classical and imprecise probabilities - and Neutrosophic Statistics.
description: 157 pages, many figures. First International Conference on Neutrosophy, Neutrosophic Logic, Set, Probability and Statistics, December 1-3, 2001, University of New Mexico. Conference's web site is hosted by The York University, Toronto, at http://at.yorku.ca/cgi-bin/amca/cagu-01
Anomalous dimensions and phase transitions in superconductors
Creators: name: Nogueira, Flavio S.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The anomalous scaling in the Ginzburg-Landau model for the superconducting phase transition is studied. It is argued that the negative sign of the $η$ exponent is a consequence of a special singular behavior in momentum space. The negative sign of $η$ comes from the divergence of the critical correlation function at finite distances. This behavior implies the existence of a Lifshitz point in the phase diagram. The anomalous scaling of the vector potential is also discussed. It is shown that the anomalous dimension of the vector potential $η_A=4-d$ has important consequences for the critical dynamics in superconductors. The frequency-dependent conductivity is shown to obey the scaling $σ(ω)\simξ^{z-2}$. The prediction $z\approx 3.7$ is obtained from existing Monte Carlo data.
description: RevTex, 20 pages, no figures; small changes; version accepted in PRB
Marques&Loredo_2009.pdf
Creators: name: Sierra, Antonio Luis Marques
name: Loredo, Jorge
Publisher: name: figshare
Year: 2019
Subjects: subject: 90509 Water Resources Engineering
subject: FOS: Civil engineering
subject: 91405 Mining Engineering
subject: FOS: Environmental engineering

description: In general, modem mining practice and strict application of environmental regulations have limited the negative impacts of the past that still affect many historic mining djstricts in the
world .. However, increasing water demand from the own mining industry and competing users, mainly from commercial agriculture, requires the development of strategies and a more integrated approach to water catchment management, as well as the use and application of new technologies for the sustainable management of them with mining activities located in arid and semiarid regions of the world. The legal access (water rights) to use water is a fundamental aspect of water catchment management. and the purpose ofthis use (agriculture,
domestic, industrial, etc.) is generally defined along with any limitations on the use. In the case of arid and semi arid zones, the rainfall is often limited to one or two months of the year, resulting in very intense storms with strong erosive powers. The short but severe storm rainfall events may cause great erosion, for example in minining areas where vegetation has been removed exposing the soils, giving rise to severe sedimentation problems in adjacent areas. These storms also provide enough water lead to acid drainage generation in the e~posed rock in mining areas. Due to the fact that a basic consideration is the development of guidelines for water resources management at catchment level, in the same way as the management of mining impacts, a number of guidelines have been published in some countries to help mining companies and government agencies to predict and avoid these problems. A review of the past and current practices in arid and semiarid zones of the planet with significant mining industry is revised in this paper.
Artificial Intelligence Shield Protection
Creators: name: Baharuddin, Baharuddin
Publisher: name: Universitas Surabaya
Year: 2024

description: Artificial Intelligence Shield Protection

Oleh: Baharuddin | Author | Researcher

Ringkasan

Pemahaman yang baik terhadap AI akan "bermuara" pada kapasitas Author Checking. Kemampuan ini perlu dilatih agar tulisan yang dihasilkan memiliki tingkat bias informasi yang rendah. 

Terlewatnya proses author checking telah terbukti menurunkan kualitas publikasi. Hal ini tidak hanya terjadi pada jurnal biasa namun juga pada jurnal internasional bereputasi.Kecerdasan artifisial tidaklah dilarang penggunaannya selama memberikan manfaat dan ada kontrol ketat pada penggunanya. Perlindungan diri perlu dimaksimalkan dalam penulisan artikel.

Keyword: Artificial intelligence; chatgpt; scispace; scite.ai, Author checking
Statistical Mechanical Calculation of Anisotropic Step Stiffness of a Two-Dimensional Hexagonal Lattice Gas Model with Next-Nearest-Neighbor Interactions: Application to Si(111) Surface
Creators: name: Akutsu, Noriko
name: Akutsu, Yasuhiro
Publisher: name: arXiv
Year: 1998
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study a two-dimensional honeycomb lattice gas model with both nearest- and next-nearest-neighbor interactions in a staggered field, which describes the surface of stoichiometrically binary crystal. We calculate anisotropic step tension, step stiffness, and equilibrium island shape, by an extended random walk method. We apply the results to Si(111) 7$\times$7 reconstructed surface and high-temperature Si(111) 1$\times$1 surface. We also calculate inter-step interaction coefficient.
description: revised on May 29 1999: RevTeX v3.1, 10 pages with 9 figures (one figure added)
Scaling Laws for the Propulsive Performance of Three-Dimensional Pitching Propulsors
Creators: name: Ayancik, Fatma
name: Zhong, Qiang
name: Quinn, Daniel B.
name: Brandes, Aaron
name: Bart-Smith, Hilary
name: Moored, Keith W.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Scaling laws for the thrust production and energetics of self-propelled or fixed-velocity three-dimensional rigid propulsors undergoing pitching motions are presented. The scaling relations extend the two-dimensional scaling laws presented in Moored & Quinn (2018) by accounting for the added mass of a finite-span propulsor, the downwash/upwash effects from the trailing vortex system of a propulsor, and the elliptical topology of shedding trailing-edge vortices. The novel three-dimensional scaling laws are validated with self-propelled inviscid simulations and fixed-velocity experiments over a range of reduced frequencies, Strouhal numbers and aspect ratios relevant to bio-inspired propulsion. The scaling laws elucidate the dominant flow physics behind the thrust production and energetics of pitching bio-propulsors, and they provide guidance for the design of bio-inspired propulsive systems.
Imaginary cubic oscillator and its square-well approximations in x- and p-representation
Creators: name: Znojil, Miloslav
Publisher: name: arXiv
Year: 2001
Subjects: subject: Mathematical Physics (math-ph)
subject: Numerical Analysis (math.NA)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 81Q10

description: Schroedinger equation with imaginary PT-symmetric potential $V^{}(x) = i\,x^3$ is studied using the numerical discretization methods in both the coordinate and momentum representations. In the former case our results confirm that the model generates an infinite number of bound states with real energies. In the latter case the differential equation is of the third order and a square-well, solvable approximation of kinetic energy is recommended and discussed. One finds that in the strong-coupling limit, the exact PT-symmetric solutions converge to their Hermitian predecessors.
description: 17 pages, 7 figures
Stripes in charge-transfer Mott insulators: effects of lattice vibrations and the Coulomb interaction
Creators: name: Alexandrov, A. S.
name: Kabanov, V. V.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Applying the canonical transformation with the 1/λperturbation expansion in the nonadiabatic and intermediate regime and the discrete generalisation of Pekar's continuous nonlinear equation in the extreme adiabatic regime we show that there are no strings in narrow-band ionic insulators due to the Frohlich electron-phonon interaction alone. The multi-polaron system is a homogeneous state in a wide range of physically interesting parameters, no matter how strong correlations are. At the same time the Frohlich interaction allows the antiferromagnetic interactions and/or a short-range electron-phonon interactions to form short strings in doped antiferromagnetic insulators if the static dielectric constant is large enough.
description: 4 pages 1 postscript figure
Charged impurity scattering limited low temperature resistivity of low density silicon inversion layers
Creators: name: Sarma, S. Das
name: Hwang, E. H.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We calculate within the Boltzmann equation approach the charged impurity scattering limited low temperature electronic resistivity of low density $n$-type inversion layers in Si MOSFET structures. We find a rather sharp quantum to classical crossover in the transport behavior in the $0 - 5$K temperature range, with the low density, low temperature mobility showing a strikingly strong non-monotonic temperature dependence, which may qualitatively explain the recently observed anomalously strong temperature dependent resistivity in low-density, high-mobility MOSFETs.
description: 5 pages, 2 figures, will appear in PRL (12 July, 1999)
Negative flat band magnetism in a spin-orbit coupled correlated kagome magnet
Creators: name: Yin, Jia-Xin
name: Zhang, Songtian S.
name: Chang, Guoqing
name: Wang, Qi
name: Tsirkin, Stepan
name: Guguchia, Zurab
name: Lian, Biao
name: Zhou, Huibin
name: Jiang, Kun
name: Belopolski, Ilya
name: Shumiya, Nana
name: Multer, Daniel
name: Litskevich, Maksim
name: Cochran, Tyler A.
name: Lin, Hsin
name: Wang, Ziqiang
name: Neupert, Titus
name: Jia, Shuang
name: Lei, Hechang
name: Hasan, M. Zahid
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: It has long been speculated that electronic flat band systems can be a fertile ground for hosting novel emergent phenomena including unconventional magnetism and superconductivity. Although flat bands are known to exist in a few systems such as heavy fermion materials and twisted bilayer graphene, their microscopic roles and underlying mechanisms in generating emergent behavior remain elusive. Here we use scanning tunneling microscopy to elucidate the atomically resolved electronic states and their magnetic response in the kagome magnet Co3Sn2S2. We observe a pronounced peak at the Fermi level, which is identified to arise from the kinetically frustrated kagome flat band. Increasing magnetic field up to +-8T, this state exhibits an anomalous magnetization-polarized Zeeman shift, dominated by an orbital moment in opposite to the field direction. Such negative magnetism can be understood as spin-orbit coupling induced quantum phase effects tied to non-trivial flat band systems. We image the flat band peak, resolve the associated negative magnetism, and provide its connection to the Berry curvature field, showing that Co3Sn2S2 is a rare example of kagome magnet where the low energy physics can be dominated by the spin-orbit coupled flat band. Our methodology of probing band-resolved ordering phenomena such as spin-orbit magnetism can also be applied in future experiments to elucidate other exotic phenomena including flat band superconductivity and anomalous quantum transport.
description: Nature Physics online
Huangqi Jianzhong Tang ameliorated phospholipase A2 and glycerophospholipids metabolism against chronic atrophic gastritis rats
Creators: name: Liu, YueTao
name: YingHuan Hu
name: Wang, GuoHong
name: Li, AiPing
name: Li, Ke
name: Zheng, QingXia
name: Qin, XueMei
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Physiology
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Inorganic Chemistry
subject: 60506 Virology

description: Huangqi Jianzhong Tang (HQJZ), a famous classic traditional Chinese medicine (TCM) formula, could protect metabolic perturbations of carbohydrates and amino acids induced by chronic atrophic gastritis (CAG) in our previous metabolomic study based on nuclear magnetic resonance (NMR) technology. The present study was designed to improve the metabolome coverage to investigate the regulative mechanism of HQJZ against CAG through ultra-high-performance liquid chromatographys coupled with quadrupole time-of-flight mass spectrometry (UHPLC-Q/TOF-MS) based-metabolomic approach. The results revealed that thirteen potential biomarkers were significantly regulated by HQJZ, which were involved into bile acid biosynthesis, sphingolipid metabolism, fatty acid metabolism and glycerophospholipid metabolism. Partial least square regression analysis (PLS-RA) and MetPA analysis revealed that glycerophospholipid metabolism was the most relevant efficacy of HQJZ against CAG. The enzyme-linked immunosorbent assay and systemDock analysis also demonstrated that HQJZ could significantly inhibit the expression of phospholipase A2 (PLA2), which was played key role in the glycerophospholipid metabolism. The results demonstrated that HQJZ exerted anti-CAG effects through the inhibition of PLA2 and glycerophospholipid metabolism, which highlighted the linking between the upstream protein expression and the downstream endogenous metabolites in molecular pharmacology.
Weighted norm inequalities for Calderon-Zygmund operators without doubling conditions
Creators: name: Tolsa, Xavier
Publisher: name: arXiv
Year: 2001
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 42B20

description: In this paper we develop a kind of A_p theory for Calderon-Zygmund operators in a non-homogeneous setting. Let μbe a Borel measure on \R^d which may be non doubling. The only condition that μmust satisfy is μ(B(x,r))\leq Cr^n for all x\in\R^d, r>0 and for some fixed n with 0
description: Updated version
Optical excitations in a non-ideal Bose gas
Creators: name: Oktel, M. O.
name: Levitov, L. S.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Condensed Matter (cond-mat)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Optical excitations in a Bose gas are demonstrated to be very sensitive to many-body effects. At low temperature the momentum relaxation is provided by momentum exchange collisions, rather than by elastic collisions. A collective excitation mode forms, which in a Boltzmann gas is manifest in a collision shift and dramatic narrowing of spectral lines. In the BEC state, each spectral line splits into two components. The doubling of the optical excitations results from the physics analogous to that of the second sound. We present a theory of the line doubling, and calculate the oscillator strengths and linewidth.
description: 5 pages, 3 eps figures
Unfolding quantum master equation into a system of real-valued equations: computationally effective expansion over the basis of $SU(N)$ generators
Creators: name: Liniov, A.
name: Meyerov, I.
name: Kozinov, E.
name: Volokitin, V.
name: Yusipov, I.
name: Ivanchenko, M.
name: Denisov, S.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Dynamics of an open $N$-state quantum system is typically modeled with a Markovian master equation describing the evolution of the system's density operator. By using generators of $SU(N)$ group as a basis, the density operator can be transformed into a real-valued 'Bloch vector'. The Lindbladian, a super-operator which serves a generator of the evolution, %in the master equation, can be expanded over the same basis and recast in the form of a real matrix. Together, these expansions result is a non-homogeneous system of $N^2-1$ real-valued linear differential equations for the Bloch vector. Now one can, e.g., implement a high-performance parallel simplex algorithm to find a solution of this system which guarantees exact preservation of the norm and Hermiticity of the density matrix. However, when performed in a straightforward way, the expansion turns to be an operation of the time complexity $\mathcal{O}(N^{10})$. The complexity can be reduced when the number of dissipative operators is independent of $N$, which is often the case for physically meaningful models. Here we present an algorithm to transform quantum master equation into a system of real-valued differential equations and propagate it forward in time. By using a scalable model, we evaluate computational efficiency of the algorithm and demonstrate that it is possible to handle the model system with $N = 10^3$ states on a single node of a computer cluster.
On nonequilibrium states in QFT model with boundary interaction
Creators: name: Bazhanov, V.
name: Lukyanov, S.
name: Zamolodchikov, A.
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We prove that certain nonequilibrium expectation values in the boundary sine-Gordon model coincide with associated equilibrium-state expectation values in the systems which differ from the boundary sine-Gordon in that certain extra boundary degrees of freedom (q-oscillators) are added. Applications of this result to actual calculation of nonequilibrium characteristics of the boundary sine-Gordon model are also discussed.
description: 19 pages, harvmac.tex
Clock Time in Quantum Cosmology
Creators: name: Rotondo, Marcello
name: Nambu, Yasusada
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider the conditioning of the timeless solution to the Wheeler-DeWitt equation by a predefined matter clock state in the simple scenario of de Sitter universe. The resulting evolution of the geometrodynamical degree of freedom with respect to clock time is characterized by the "Berry connection" of the reduced geometrodynamical space, which relies on the coupling of the clock with the geometry. When the connection vanishes, the standard Schrödinger equation is obtained for the geometry with respect to clock time. When one considers environment-induced decoherence in the semi-classical limit, this condition is satisfied and clock time coincides with cosmic time. Explicit results for the conditioned wave functions for minimal clocks made up of two quantum harmonic oscillator eigen-states are shown.
Descartes-Newton-Young rainbow
Creators: name: Panov, Aleksei
Publisher: name: arXiv
Year: 2018
Subjects: subject: Popular Physics (physics.pop-ph)
subject: FOS: Physical sciences

description: We discuss three rainbow theories created by Descartes, Newton and Young. The note is written primary for school students.
description: 23 pages, 25 figures, 1 table. This is an improved and extended version of a published article (in Russian)
Continuum Modeling and Control of Large Nonuniform Wireless Networks via Nonlinear Partial Differential Equations
Creators: name: Zhang, Yang
name: Estep, Donald
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: We introduce a continuum modeling method to approximate a class of large wireless networks by nonlinear partial differential equations (PDEs). This method is based on the convergence of a sequence of underlying Markov chains of the network indexed by , the number of nodes in the network. As goes to infinity, the sequence converges to a continuum limit, which is the solution of a certain nonlinear PDE. We first describe PDE models for networks with uniformly located nodes and then generalize to networks with nonuniformly located, and possibly mobile, nodes. Based on the PDE models, we develop a method to control the transmissions in nonuniform networks so that the continuum limit is invariant under perturbations in node locations. This enables the networks to maintain stable global characteristics in the presence of varying node locations.
LSCP: Locally Selective Combination in Parallel Outlier Ensembles
Creators: name: Zhao, Yue
name: Nasrullah, Zain
name: Hryniewicki, Maciej K.
name: Li, Zheng
Publisher: name: arXiv
Year: 2018
Subjects: subject: Machine Learning (cs.LG)
subject: Information Retrieval (cs.IR)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: In unsupervised outlier ensembles, the absence of ground truth makes the combination of base outlier detectors a challenging task. Specifically, existing parallel outlier ensembles lack a reliable way of selecting competent base detectors, affecting accuracy and stability, during model combination. In this paper, we propose a framework---called Locally Selective Combination in Parallel Outlier Ensembles (LSCP)---which addresses the issue by defining a local region around a test instance using the consensus of its nearest neighbors in randomly selected feature subspaces. The top-performing base detectors in this local region are selected and combined as the model's final output. Four variants of the LSCP framework are compared with seven widely used parallel frameworks. Experimental results demonstrate that one of these variants, LSCP_AOM, consistently outperforms baselines on the majority of twenty real-world datasets.
description: Proceedings of the 2019 SIAM International Conference on Data Mining (SDM)
Table S5 and Reference from Ancestral and offspring nutrition interact to affect life-history traits in Drosophila melanogaster
Creators: name: Deas, Joseph B.
name: Blondel, Leo
name: Extavour, Cassandra G.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Physiology
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Health Care
subject: Diseases
subject: 111706 Epidemiology
subject: FOS: Health sciences

description: Ancestral environmental conditions can impact descendant phenotypes through a variety of epigenetic mechanisms. Previous studies on transgenerational effects in Drosophila melanogaster suggest that parental nutrition may affect the body size, developmental duration and egg size of the next generation. However, it is unknown whether these effects on phenotype remain stable across generations, or if specific generations have general responses to ancestral diet. In the current study, we examined the effect on multiple life-history phenotypes of changing diet quality across three generations. Our analysis revealed unforeseen patterns in how phenotypes respond to dietary restriction. Our generalized linear model showed that when considering only two generations, offspring phenotypes were primarily affected by their own diet, and to a lesser extent by the diet of their parents or the interaction between the two generations. Surprisingly, however, when considering three generations, offspring phenotypes were primarily impacted by their grandparents' diet and their own diet. Interactions among different generations’ diets affected development time, egg volume and pupal mass more than ovariole number or wing length. Furthermore, pairwise comparisons of diet groups from the same generation revealed commonalities in strong responses to rich versus poor diet: ovariole number, pupal mass and wing length responded more strongly to poor diet than to rich diet, while development time responded strongly to both rich and poor diets. To improve investigations into the mechanisms and consequences of transgenerational, epigenetic inheritance, future studies should closely examine how phenotypes change across a higher number of generations, and consider responses to broader variability in diet treatments.
Multiparametric Quantum Algebras and the Cosmological Constant
Creators: name: Krishnan, Chethan
name: Napoli, Edoardo Di
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2007

description: With a view towards applications for de Sitter, we construct the multiparametric q-deformation of the so(5,ℂ) algebra using the Faddeev-Reshetikhin-Takhtadzhyan (FRT) formalism.
Onthophagus dicranioides Balthasar 1939
Creators: name: Bezděk, Aleš
name: Hájek, Jiří
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Onthophagus
Onthophagus dicranioides

description: Onthophagus dicranioides Balthasar, 1939
 Onthophagus dicranioides Balthasar, 1939a: 43.
Two syntypes are deposited in NMPC (ex coll. V. Balthasar):
SYNTYPE (J): ‘W Ecuador / Pucay / F. Ohaus S. [p] // Bucay 300 m / F. Ohs. 12.6.05 [p] // P.G. 3349 / Canada balsam / M. Zunino 1980 [hw] // TYPUS [p, red label, black frame] // Onthophagus / dicranioides [hw] / Dr. V. Balthasar det. [p] // Mus. Nat. Pragae / Inv. [p] 26326 [hw, orange label] // dicranioides m. [hw, green label, black frame]’.
SYNTYPE (♀): ‘Bucay 300 m / F. Ohs. 12.6.05 [p] // P.G. 3346 / Canada balsam / M. Zunino 1980 [hw] // TYPUS [p, red label, black frame] // Onthophagus / dicranioides [hw] / Dr. V. Balthasar det. [p] // Mus. Nat. Pragae / Inv. [p] 26327 [hw, orange label]’.
 Current status. Valid species; not assigned to any subgenus.
description: Published as part of Bezděk, Aleš & Hájek, Jiří, 2013, Catalogue of type specimens of beetles (Coleoptera) deposited in the National Museum, Prague, Czech Republic, pp. 387-442 in Acta Entomologica Musei Nationalis Pragae 53 (1) on page 404, DOI: 10.5281/zenodo.5739743
Nonlinear evolution of step meander during growth of a vicinal surface with no desorption
Creators: name: Gillet, F.
name: Pierre-Louis, O.
name: Misbah, C.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Step meandering due to a deterministic morphological instability on vicinal surfaces during growth is studied. We investigate nonlinear dynamics of a step model with asymmetric step kinetics, terrace and line diffusion, by means of a multiscale analysis. We give the detailed derivation of the highly nonlinear evolution equation on which a brief account has been given [Pierre-Louis et.al. PRL(98)]. Decomposing the model into driving and relaxational contributions, we give a profound explanation to the origin of the unusual divergent scaling of step meander ~ 1/F^{1/2} (where F is the incoming atom flux). A careful numerical analysis indicates that a cellular structure arises where plateaus form, as opposed to spike-like structures reported erroneously in Ref. [Pierre-Louis et.al. PRL(98)]. As a robust feature, the amplitude of these cells scales as t^{1/2}, regardless of the strength of the Ehrlich-Schwoebel effect, or the presence of line diffusion. A simple ansatz allows to describe analytically the asymptotic regime quantitatively. We show also how sub-dominant terms from multiscale analysis account for the loss of up-down symmetry of the cellular structure.
description: 23 pages, 10 figures; (Submitted to EPJ B)