cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Fermions with long and finite range interactions on a quantum ring
Creators: name: Bray, A. W.
name: Simenel, C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Background: Idealised systems are commonly used in nuclear physics and condensed matter. For instance, the construction of nuclear energy density functionals involves properties of infinite matter, while neutron drops are used to test nuclear interactions and approximations to the nuclear many-body problem. In condensed matter, quantum rings are also used to study properties of electron systems. Purpose: To investigate the possibility to use quantum rings with systems of nucleons including many-body correlations. Methods: A quantum ring model of a finite number of same spin fermions is developed. Several attractive and repulsive interactions with finite and infinite ranges are considered. Quantum Monte Carlo calculations are used to provide exact ground-state energies. Comparisons with analytical Hartree-Fock solutions are used to get an insight into the role of correlations. Results: Hartree-Fock results with no breaking of space translational symmetry are able to describe many systems. However, additional spatial correlations are required in the case of dense systems with a strong short-range repulsion, or with attractive interactions in large rings. Conclusions: Self-bound systems of fermions with spatial correlations produced by basic features of the nuclear interactions can be described on a quantum ring, encouraging applications with realistic interactions, as well as investigations with higher dimensional geometries such as spherium.
description: Accepted for publication in PRC
Quality of life after respiratory rehabilitation in individuals with chronic obstructive pulmonary disease
Creators: name: Camp, Patricia G.
Publisher: name: University of British Columbia
Year: 2009

description: Respiratory rehabilitation is directed toward decreasing some of the negative effects of chronic obstructive pulmonary disease (COPD), such as shortness of breath, decreased physical tolerance, and coping difficulties. Previous evaluations of respiratory rehabilitation have included quantitative quality of life (QOL) measurement; however, the inclusion of qualitative methods may provide a more comprehensive assessment of QOL. The purpose of this study is to use both quantitative methods (in the form of questionnaires) with qualitative methods (in the form of semi-structured interviews) to evaluate QOL changes in individuals with COPD after respiratory rehabilitation. Twenty-nine individuals with COPD were assessed before and after a five-week Control Phase, and after a five-week Rehabilitation Phase, using spirometry, a generic QOL questionnaire, the Medical Outcomes Study Short-Form 36 (SF-36) and a disease-specific questionnaire, the Chronic Respiratory Questionnaire (CRQ). Seven people then participated in a semi-structured interview with questions designed to determine how the participants perceived the Rehabilitation Phase, and the changes they attributed to rehabilitation. Respiratory rehabilitation improved QOL as demonstrated by increases of 22% (p=0.000) and 14% (p=0.00T) in the Physical Function categories of the CRQ and the SF-36, respectively, and by an increase of 10% (p-0.000) in the CRQ's Emotional Function category. These findings were expanded upon and complemented by the qualitative data, which described how acquiring skills and knowledge, gaining control and feeling more energetic, and expanding physical and emotional potential ultimately impacted QOL. In summary, both the generic (SF-36) and the disease-specific (CRQ) questionnaires showed improved physical function but only the disease-specific questionnaire showed improved emotional function. The mixed-methods approach provided information not only on the magnitude of change of QOL, but also provided insight regarding the manner in which QOL is impacted in some individuals with COPD after respiratory rehabilitation.
Envelope models for the supersoft X-ray emission of V1974 Cyg
Creators: name: Sala, Gloria
name: Hernanz, Margarita
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The evolution of the soft X-ray emission of V1974 Cyg has been simulated by a white dwarf envelope model with steady hydrogen burning. The comparison of the results obtained from ROSAT observations with the results of our envelope models indicates that the post-outburst evolution of the nova can be explained by steady H-burning on either a 0.9 Msun white dwarf with 50% degree of mixing between solar-like accreted material and the ONe degenerate core, or on a 1.0 Msun ONe white dwarf with 25% mixing.
description: 5 pages, 1 figure, accepted for publication in Astronomy & Astrophysics
Low-temperature environments for quantum computation and quantum simulation
Creators: name: Fu, Hailong
name: Wang, Pengjie
name: Hu, Zhenhai
name: Li, Yifan
name: Lin, Xi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This review article summarizes the requirement of low temperature conditions in existing experimental approaches to quantum computation and quantum simulation.
description: 23 pages, 4 figures, 2 tables
Modeling the formation of galaxy clusters in MOND
Creators: name: Nusser, Adi
name: Pointecouteau, Etienne
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use a one dimensional hydrodynamical code to study the evolution of spherically symmetric perturbations in the framework of Modified Newtonian Dynamics (MOND). The code evolves spherical gaseous shells in an expanding Universe by employing a MOND-type relationship between the fluctuations in the density field and the gravitational force, $g$. We focus on the evolution of initial density perturbations of the form $δ_{i}\sim r_{i}^{-s}$ for $0
description: 8 pages, 7 figures, MNRAS submitted
Minimal Virtual Machines on IoT Microcontrollers: The Case of Berkeley Packet Filters with rBPF
Creators: name: Zandberg, Koen
name: Baccelli, Emmanuel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Operating Systems (cs.OS)
subject: FOS: Computer and information sciences

description: Virtual machines (VM) are widely used to host and isolate software modules. However, extremely small memory and low-energy budgets have so far prevented wide use of VMs on typical microcontroller-based IoT devices. In this paper, we explore the potential of two minimal VM approaches on such low-power hardware. We design rBPF, a register-based VM based on extended Berkeley Packet Filters (eBPF). We compare it with a stack-based VM based on WebAssembly (Wasm) adapted for embedded systems. We implement prototypes of each VM, hosted in the IoT operating system RIOT. We perform measurements on commercial off-the-shelf IoT hardware. Unsurprisingly, we observe that both Wasm and rBPF virtual machines yield execution time and memory overhead, compared to not using a VM. We show however that this execution time overhead is tolerable for low-throughput, low-energy IoT devices. We further show that, while using a VM based on Wasm entails doubling the memory budget for a simple networked IoT application using a 6LoWPAN/CoAP stack, using a VM based on rBPF requires only negligible memory overhead (less than 10% more memory). rBPF is thus a promising approach to host small software modules, isolated from OS software, and updatable on-demand, over low-power networks.
Heavy Metals Dyanamics and Source In Intertidal Mangrove Sediment of Sabah,Borneo Island
Creators: name: Sarva Mangala Praveena
name: Aris, Ahmad Zaharin
name: Radojevic, Miroslav
name: -
Publisher: name: Thai Society of Higher Education Institutes on Environment
Year: 2010
Subjects: mangrove surface sediment,heavy metals,intertidal

description: special issue, 3, EnvironmentAsia
Weak cosmic censorship conjecture in higher-dimensional black holes with nonlinear electrodynamic sources
Creators: name: Li, Zhen
name: Gao, Yunjiao
name: Guo, Xiao-Kan
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The new version of the gedanken experiments proposed by Sorce and Wald are designed to test the validity of the weak cosmic censorship conjecture (WCCC) by overspinning or overcharging the Kerr-Newman black hole in Einstein-Maxwell gravity. Following their setup, in this paper, we investigate the WCCC in the higher-dimensional charged black hole with a nonlinear electrodynamics source. We derive the first and seconder order perturbation inequalities of the charged collision matter based on the Iyer-Wald formalism as well as the null energy conditions, and show that they share the similar form as that in Einstein-Maxwell gravity. As a result, we find that the static higher-dimensional nonlinear electrodynamics (HDNL) black holes cannot be overcharged after considering these two inequalities. Our result might indicate the validity of WCCC for more general HNDL and related systems.
description: 7 pages
Extenuation of Saline Solutes in Shallow Aquifer of a Small Tropical Island:A Case Study of Manukan Island, North Borneo
Creators: name: Aris, Ahmad Zaharin
name: Mohd Harun Abdullah
name: Sarva Mangala Praveena
name: Mohd Kamil Yusoff
name: Hafizan Juahir
Publisher: name: Thai Society of Higher Education Institutes on Environment
Year: 2010
Subjects: small island,hydrochemistry,PHREEQC,solutes transport

description: special issue, 3, EnvironmentAsia
The Born-Oppenheimer approach to Quantum Cosmology
Creators: name: Kamenshchik, A. Y.
name: Tronconi, A.
name: Venturi, G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The scope of this paper is to compare two different approaches for solving the Wheeler-DeWitt (WDW) equation in the presence of homogeneous matter (inflaton) and perturbations around it. The standard Born-Oppenheimer (BO) decomposition, which consists of factorizing out the gravitational wave function and then defining the flow of the time through it, and a more general BO decomposition where the whole minisuperspace wave function is factorized out. The two approaches are compared, for simplicity, in the case of a minimally coupled inflaton with a flat potential. The consistency of the latter decomposition is checked against the former by comparing the resulting perturbation (Mukhanov-Sasaki) equations. Finally a few solutions to the homogeneous WDW not suitable for the traditional BO treatment are presented and the corresponding Mukhanov-Sasaki equations are evaluated.
description: 21 pages, no figures
Rhopalosiphum nymphaeae
Creators: name: Albrecht, Anders Christian
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Aphidomorpha
Aphididae
Rhopalosiphum
Rhopalosiphum nymphaeae

description: Rhopalosiphum nymphaeae (Linnaeus, 1761)
Fig. 33  Diagnosis
 Aptera 1.5–2.5 mm, brown to olive, dusted with greyish wax, particularly on venter and margins, including legs and antennae. Siph. swollen, with a distinct constriction before the apical flange. Holocyclic, dioecious, alternating between Prunus and many unrelated, mostly aquatic or semiaquatic plants. Not ant-attended.   Recorded Pteridophyta hosts
 Marsileaceae: Marsilea quadrifolia, M. strigosa; Salviniaceae: Azolla caroliniana, A. filiculoides, Salvinia auriculatia, S. natans.   Distribution
D F N S.
description: Published as part of Albrecht, Anders Christian, 2015, Identification guide to Nordic aphids associated with mosses, horsetails and ferns (Bryophyta, Equisetophyta, Polypodiophyta) (Insecta, Hemiptera, Aphidoidea), pp. 1-55 in European Journal of Taxonomy 145 on pages 40-41, DOI: 10.5852/ejt.2015.145, http://zenodo.org/record/3787410
Comparison Between Topographic Expression of RADARSAT and DEM in Simpang Pulai to Pos Selim, Malaysia
Creators: name: M.F.Ramli
name: N. Yusof
name: H.Z.M. Shafri
name: M.A. Misman
name: H. Juahir
name: M.K. Yusoff
Publisher: name: Thai Society of Higher Education Institutes on Environment
Year: 2010
Subjects: RADARSAT,DEM,Remote sensing,lineament.

description: special issue, 3, EnvironmentAsia
title: Das Ballett auf der Strasse. Eine Foto-Ausstellung von Rudi Meisel im ZZF Potsdam
Creators: name: Ludwig, Andreas
Publisher: name: ZZF - Centre for Contemporary History: Visual History
Year: 2017

description: Unter dem Titel „Landsleute“ hat der Fotojournalist Rudi Meisel Bilder aus Reportagen zusammengestellt, die zwischen 1977 und 1987 in der DDR, im Ruhrgebiet und in West-Berlin entstanden sind. Sie sind als Ausstellung – 2015 in der Fotogalerie C/O Berlin gezeigt – nun im Potsdamer Zentrum für Zeithistorische Forschung zu sehen: Anlass für Fragen an den Fotografen zwischen Zeitgenossenschaft und Geschichte.
Abundances of s-process elements in planetary nebulae: Br, Kr & Xe
Creators: name: Zhang, Y.
name: Williams, R.
name: Pellegrini, E.
name: Cavagnolo, K.
name: Baldwin, J. A.
name: Sharpee, B.
name: Phillips, M.
name: Liu, X. -W.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We identify emission lines of post-iron peak elements in very high signal-to-noise spectra of a sample of planetary nebulae. Analysis of lines from ions of Kr and Xe reveals enhancements in most of the PNe, in agreement with the theories of s-process in AGB star. Surprisingly, we did not detect lines from Br even though s-process calculations indicate that it should be produced with Kr at detectable levels.
description: 2 pages, 1 figure, to be published in the Proceedings of the IAU Symposium 234: Planetary Nebulae in Our Galaxy and Beyond, eds. M.J. Barlow, R.H. Mendez
Consequences of the packing problem
Creators: name: Bodas, Hrishikesh
name: Drabkin, Benjamin
name: Fong, Caleb
name: Jin, Su
name: Kim, Justin
name: Li, Wenxuan
name: Seceleanu, Alexandra
name: Tang, Tingting
name: Williams, Brendan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Commutative Algebra (math.AC)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 13C70, 13F55, 05E40, 05C65, 05C15

description: We study several consequences of the packing problem, a conjecture from combinatorial optimization, using algebraic invariants of square-free monomial ideals. While the packing problem is currently unresolved, we successfully settle the validity of its consequences. Our work prompts additional questions and conjectures, which are presented together with their motivation.
description: Final version - Journal of Algebraic Combinatorics
Gravitino, Axino, Kaluza-Klein Graviton Warm and Mixed Dark Matter and Reionisation
Creators: name: Jedamzik, Karsten
name: Lemoine, Martin
name: Moultaka, Gilbert
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Stable particle dark matter may well originate during the decay of long-lived relic particles, as recently extensively examined in the cases of the axino, gravitino, and higher-dimensional Kaluza-Klein (KK) graviton. It is shown that in much of the viable parameter space such dark matter emerges naturally warm/hot or mixed. In particular, decay produced gravitinos (KK-gravitons) may only be considered cold for the mass of the decaying particle in the several TeV range, unless the decaying particle and the dark matter particle are almost degenerate. Such dark matter candidates are thus subject to a host of cosmological constraints on warm and mixed dark matter, such as limits from a proper reionisation of the Universe, the Lyman-alpha forest, and the abundance of clusters of galaxies.. It is shown that constraints from an early reionsation epoch, such as indicated by recent observations, may potentially limit such warm/hot components to contribute only a very small fraction to the dark matter.
description: 7 pages, 4 figures, includes results of 3 years of WMAP observations
The Development of an Expert System for Decision Making in Forest Resources Managemant
Creators: name: Zukki, Nur Ilyana Mohd
name: Manaf, Latifah Abd
name: Mohd Armi Abu Samah
Publisher: name: Thai Society of Higher Education Institutes on Environment
Year: 2010
Subjects: expert systems,multi-criteria decision making,analytical hierarchy process,forest resources management

description: special issue, 3, EnvironmentAsia
Investigation of Charged Higgs Boson in the Bottom and Top Quark Decay Channel at the FCC-hh
Creators: name: Cakir, I. Turk
name: Cakir, O.
name: Denizli, H.
name: Senol, A.
name: Yilmaz, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: After the recent discovery of a neutral Higgs boson with a mass about 125 GeV, we assess the extend of discovery potential of future circular hadron collider (FCC-hh) for a charged Higgs boson in the bottom and top quark decay channel. The charged Higgs boson can be produced through the pp->h^{-}t+X process with a subsequent decay h^{-}->b bar{t} channel. This decay channel is particularly important for studying the charged Higgs boson heavier than the top quark. We consider an extension of the standard model Higgs sector, namely two Higgs doublet model (2HDM), and perform a dedicated signal significance analysis to test this channel for the FCC-hh running at the center of mass energy of 100 TeV and the integrated luminosity of 1 ab^{-1} (initial) and 30 ab^{-1} (ultimate). We find that an important part of the parameter spaces of two Higgs doublet model are examinable at the FCC-hh.
description: 5 pages, 8 figures
The four-point function of determinant operators in $\mathcal{N}=4$ SYM
Creators: name: Vescovi, Edoardo
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We calculate the four-point function of $1/2$-BPS determinant operators in $\mathcal{N}=4$ SYM at next-to-leading order at weak coupling. We use two complementary methods recently developed for a class of determinant three-point functions: one is based on Feynman diagrams and it extracts perturbative data at finite $N$, while the other one expresses a generic correlator of determinants as the zero-dimensional integral over an auxiliary matrix field. We generalise the latter approach to calculate one-loop corrections and we solve the four-point function in a semi-classical approach at large $N$. The results allow to comment on the order of the phase transition that the four-point function is expected to exhibit in an exact integrability-based description.
description: 9 pages, 1 figure, matching published version
High-precision determination of universal amplitude ratios for the q=3 Potts model in 2d
Creators: name: Shchur, Lev N.
name: Berche, Bertrand
name: Butera, Paolo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Monte Carlo simulations and series expansion data for the energy, specific heat, magnetization and susceptibility of the 3-state Potts model on the square lattice are analyzed in the vicinity of the critical point in order to estimate universal combinations of critical amplitudes.
description: LaTeX, 20 pages with 6 figures
The impact of teacher certification on student success on high school assessments
Creators: name: Kauffman, David M.
Publisher: name: Maryland Shared Open Access Repository
Year: 2010
Subjects: subject: High school teachers -- Certification -- Research
subject: High school students -- Research
subject: Academic achievement -- Research
subject: Education -- Research papers (Graduate)

description: The purpose of this study is to determine what, if any, impact teachers with highly
qualified status who teach courses related to high stakes tests such as the high school
assessments have upon student learning compared to teachers assigned to teach similar courses
who only have provisional status. The measurement tools were the Maryland English 10 and
Algebra High School Assessments. This study involved the English 10 and Algebra data from
the May 2008 test administration. A higher percentage of students taught by certified teachers
passed both assessments compared to students taught by conditionally certified teachers,
although there were certain factors that could have had an impact on the results. Research in the
area of teacher certifications impact on student achievement needs to continue as the focus on
high stakes assessments grows.
MASOFAVIY  BANK  XIZMATLARINING ZAMONAVIY TIJORAT BANKLARI  FAOLIYATIDAGI ROLI VA O'RNI
Creators: name: Tursunov, Faridun
Publisher: name: Zenodo
Year: 2024

description: O‘zbekiston Respublikasida masofaviy bank tizimlarining dolzarbligi masofaviy bank xizmatlarining jadal rivojlanishi bilan bog‘liq. Masofaviy bank tizimlarini o‘rganishning asosiy mezoni elektron bank xizmatlarini yanada rivojlantirish muammolari va istiqbollarini o‘rganish hisoblanadi. Zamonaviy dunyoda iqtisodiyotning evolyutsiyasini mamlakat pul aylanmasining tezlashtiruvchisi bo‘lgan innovatsion bank texnologiyalaridan samarali foydalanmasdan amalga oshirish mumkin emas.  Yangi texnologiyalarning joriy etilishi, aloqa vositalarining rivojlanishi bankning turli hududdagi mijozlarga xizmat ko‘rsatishi, shuningdek, qog‘ozbozlikni qisqartirish imkonini beradi. Bank tizimining rivojlanishi bir qancha sabablarga bog‘liq bo‘lib, ular orasida birinchi navbatda yangi axborot texnologiyalari joriy etilishi bilan iste’molchi turmush tarzining o‘zgarishi hisoblanadi.
Chiral Majorana Hinge Modes in Superconducting Dirac Materials
Creators: name: Fu, Bo
name: Hu, Zi-Ang
name: Li, Chang-An
name: Li, Jian
name: Shen, Shun-Qing
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Chiral Majorana hinge modes are characteristic of a second-order topological superconductor in three dimensions. Here we systematically study pairing symmetry in the point group D_{2h}, and find that the leading pairing channels can be of s-, d-, and s+id-wave pairing in Dirac materials. Except for the odd-parity s-wave pairing superconductivity, the s+id-wave pairing superconductor is topologically nontrivial and possesses Majorana hinge and surface modes. The chiral Majorana hinge modes can be characterized by a winding number of the quadrupole moment, or quantized quadruple moment at the symmetrically invariant point. Our findings suggest the strong spin-orbital coupling, crystalline symmetries and electron-electron interaction in the Dirac materials may provide a microscopic mechanism to realize chiral Majorana hinge modes without utilizing the proximity effect or external fields.
description: 7pages with 3 figues and 1 table
Twisted invariant theory for reflection groups
Creators: name: Bonnafé, Cédric
name: Lehrer, Gus
name: Michel, Jean
Publisher: name: arXiv
Year: 2005
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20F55

description: Let $G$ be a reflection group acting on a vector space $V$ and let $γ$ be an automorphism of $V$ normalising $G$. We study how $γ$ acts on invariants and covariants (for various representations) of $G$, and properties of its eigenspaces.
description: 29 pages, 1 table
A chromomagnetic mechanism for the X(3872) resonance
Creators: name: Hogaasen, H.
name: Richard, J. M.
name: Sorba, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The chromomagnetic interaction, with proper account for flavour-symmetry breaking, is shown to explain the mass and coupling properties of the X(3872) resonance as a $J^{PC}$ = 1$^{++}$ state consisting of a heavy quark-antiquark pair and a light one. It is crucial to introduce all the spin-colour configurations compatible with these quantum numbers and diagonalise the chromomagnetic interaction in this basis. This approach thus differs from the molecular picture $D\bar {D}*$ and from the diquark-antidiquark picture.
description: 4 pages - revtex4 - Typos corrected, refs. added, to be published in Phys. Rev. D
Is Phase Shift Keying Optimal for Channels with Phase-Quantized Output?
Creators: name: Bernardo, Neil Irwin
name: Zhu, Jingge
name: Evans, Jamie
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper establishes the capacity of additive white Gaussian noise (AWGN) channels with phase-quantized output. We show that a rotated $2^b$-phase shift keying scheme is the capacity-achieving input distribution for a complex AWGN channel with $b$-bit phase quantization. The result is then used to establish the expression for the channel capacity as a function of average power constraint $P$ and quantization bits $b$. The outage performance of phase-quantized system is also investigated for the case of Rayleigh fading when the channel state information (CSI) is only known at the receiver. Our findings suggest the existence of a threshold in the rate $R$, above which the outage exponent of the outage probability changes abruptly. In fact, this threshold effect in the outage exponent causes $2^b$-PSK to have suboptimal outage performance at high SNR.
description: 6 pages, 4 Figures; To appear in ISIT 2021
Color defects in a gauge condensate
Creators: name: Dzhunushaliev, Vladimir
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The model of an approximate non-perturbative calculations in the SU(3) gauge theory is offered. This approach is based on the separation of initial degrees of freedom on ordered and disordered phases. The ordered phase is almost classical degrees of freedom, the disordered phase is completely quantum degrees of freedom. Using some approximations and simplifications for 2 and 4-points Green's functions an effective Lagrangian describing both phases from the SU(3) Lagrangian is obtained. The calculations show that ordered phase is squeezed by disordered phase into defects. These defects are: an infinite flux tube filled with longitudinal color electric and magnetic fields; a color electric hedgehog; a defect having either two color electric dipoles + two color magnetic dipoles or two color electric dipoles or two color magnetic dipoles. It assumed that the color defects are quantum excitations in a gauge condensate. The equations for the disordered phase are an analog of Ginzburg - Landau equation.
description: one section concerning a bag-like defect for quark field is added
ความสัมพันธ์ระหว่างกลวิธีทางภาษากับภาพตัวแทนบุคคลพ้นโทษในวาทกรรมสนับสนุนบุคคลพ้นโทษในหนังสือพิมพ์รายวันภาษาไทย
Creators: name: นครินทร์ สำเภาพล
Publisher: name: คณะศิลปศาสตร์ มหาวิทยาลัยธรรมศาสตร์
Year: 2020
Subjects: วาทกรรมวิเคราะห์เชิงวิพากษ์
ภาพตัวแทน
บุคคลพ้นโทษ

description: วรรณวิทัศน์, 20, 1, 37-86
Cosmic microwave background polarization analysis
Creators: name: Challinor, Anthony
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: With polarization of the cosmic microwave background (CMB) now detected, and confirmed by several independent experiments, the next goal is to characterise accurately its statistical properties. In these lecture notes we review the physical motivation for pursuing CMB polarization, and the basic statistical properties of the polarization fields. We then discuss some of the key aspects of the analysis of CMB polarization data, focusing on the additional complications that arise compared to temperature data due to the tensor character of the polarization field.
description: Summer school lecture notes. To appear in `Data analysis in cosmology' (Springer LNP), Valencia, 6-10 September 2004
Amphorophora ampullata Buckton 1876
Creators: name: Albrecht, Anders Christian
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Aphidomorpha
Aphididae
Amphorophora
Amphorophora ampullata

description: Amphorophora ampullata Buckton, 1876
Fig. 34  Diagnosis
Aptera 3–5 mm, bright green without markings. Eyes red. Holocyclic, monoecious. Shady places, parks, gardens, mixed and deciduous forests. Not ant-attended.  Recorded hosts
 Aspleniaceae: Asplenium sp.; Athyriaceae: Athyrium filix-femina *; Cystopteridaceae: Cystopteris montana; Gymnocarpium dryopteris; Dennstaedtiaceae: Dennstaedtia sp., Pteridium aquilinum; Dryopteridaceae: Dryopteris carthusiana *, D. dilatata, D. filix-mas, Polystichum sp.; Onocleaceae: Matteuccia struthiopteris *; Thelypteridaceae: Phegopteris connectilis, Thelypteris palustris.   Distribution
D F N S.
description: Published as part of Albrecht, Anders Christian, 2015, Identification guide to Nordic aphids associated with mosses, horsetails and ferns (Bryophyta, Equisetophyta, Polypodiophyta) (Insecta, Hemiptera, Aphidoidea), pp. 1-55 in European Journal of Taxonomy 145 on page 41, DOI: 10.5852/ejt.2015.145, http://zenodo.org/record/3787410
Indoor Air Quality in Selected Samples of Primary Schools in Kuala Terengganu, Malaysia
Creators: name: Marzuki Ismail
name: Sofian, Nur Zafirah Mohd
name: Abdullah, Ahmad Makmon
Publisher: name: Thai Society of Higher Education Institutes on Environmen
Year: 2010
Subjects: Indoor air quality (IAQ),Particulate matter (PM10),Carbon monoxide (CO),Carbon dioxide (CO2),Terengganu

description: special issue, 3, EnvironmentAsia
Flare Rates, Rotation Periods. and Spectroscopic Activity Indicators of a Volume-Complete Sample of Mid-to-Late M dwarfs within 15 Parsecs
Creators: name: Medina, Amber A.
name: Winters, Jennifer G.
name: Irwin, Jonathan M.
name: Charbonneau, David
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a study of flare rates, rotation periods, and spectroscopic activity indicators of 125 single stars within 15 parsecs and with masses between 0.1$-$0.3 $M_\odot$ observed during the first year of the TESS mission, with the goal of elucidating the relationship between these various magnetically connected phenomena. We gathered multi-epoch high resolution spectra of each target and we measured equivalent widths of the activity indicators Helium I D$_3$, $Hα$, and the Calcium infrared triplet line at 8542.09 angstroms. We present 18 new rotation periods from MEarth photometry and 19 new rotation periods from TESS photometry. We present a catalog of 1392 flares. After correcting for sensitivity, we find the slope of the flare frequency distribution for all stars to have a standard value of $α$ = 1.98 $\pm$ 0.02. We determine R$_{31.5}$, the rate of flares per day with energies above E = 3.16$\times$10$^{31}$ ergs in the TESS bandpass. We find that below a critical value of $Hα$ EW = -0.71 angstroms, log R$_{31.5}$ increases linearly with increasing $Hα$ emission; above this value, log R$_{31.5}$ declines rapidly. The stars divide into two groups: 26% have $Hα$ in emission, high flare rates with typical values of log R$_{31.5}$ = -1.30 $\pm$ 0.08, and have Rossby numbers $
description: Accepted for publication in The Astrophysical Journal
Parking site selection management using Fuzzy logic and Multi Criteria Decision Making
Creators: name: Raheleh Farzanmanesh
name: Naeeni, Arman Ghaziasgari
name: Abdullah, Ahmad Makmom
Publisher: name: Thai Society of Higher Education Institutes on Environmen
Year: 2010
Subjects: parking site selection,weighting criteria,Analytical Hierarchical Process (AHP),fuzzy logic

description: special issue, 3, EnvironmentAsia
Fast Detour Computation for Ride Sharing
Creators: name: Geisberger, Robert
name: Luxen, Dennis
name: Neubauer, Sabine
name: Sanders, Peter
name: Volker, Lars
Publisher: name: Karlsruhe
Year: 2010

description: Ride sharing becomes more and more popular not least because internet services help matching offers and request. However, current systems use a rather simple-minded functionality allowing to search for the origin and destination city, sometimes enriched with radial search around the cities. We show that theses services can be substantially improved using innovative route planning algorithms. More concretely, we generalize previous static algorithms for many-to-many routing to a dynamic setting and develop an additional pruning strategy. With these measures it becomes possible to match each request to $n$ offers using $2n+1$ exact travel time computations in a large road network in a fraction of a microsecond per offer. For requests spread over Germany according to population density, we are able to reduce the number of failing entries substantially. We are able to find a reasonable match for more than 60% of the failing entries left by contemporary matching strategies. Additionally, we halve the average waste of resources in the matches found compared to radial search.
Pulsating ULXs: large pulsed fraction excludes strong beaming
Creators: name: Mushtukov, Alexander A.
name: Zwart, Simon Portegies
name: Tsygankov, Sergey S.
name: Nagirner, Dmitrij I.
name: Poutanen, Juri
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The recent discovery of pulsating ultra-luminous X-ray sources (ULXs) shows that the apparent luminosity of accreting neutron stars (NSs) can exceed the Eddington luminosity by a factor of hundreds. The relation between the actual and apparent luminosity is a key ingredient in theoretical models of ULXs but it is still under debate. A typical feature of the discovered pulsating ULXs is a large pulsed fraction (PF). Using Monte Carlo simulations, we consider a simple geometry of accretion flow and test the possibility of simultaneous presence of a large luminosity amplification due the geometrical beaming and a high PF. We argue that these factors largely exclude each other and only a negligible fraction of strongly beamed ULX pulsars can show PF above 10 per cent. Discrepancy between this conclusion and current observations indicate that pulsating ULXs are not strongly beamed and their apparent luminosity is close to the actual one.
description: 6 pages, 5 figures; accepted for publication in MNRAS
The Effects of Improved Land Use on the Meteorological Modeling in Klang Valley Region Malaysia
Creators: name: Chng, Loi Kok
name: Abdullah, Ahmad Makmom
name: Sulaiman, Wan Nor Azmin
name: Ramli, Mohammad Firuz
Publisher: name: Thai Society of Higher Education Institutes on Environmen
Year: 2010
Subjects: meteorological modeling,land use,MM5,urban

description: special issue, 3, EnvironmentAsia
Random-Receiver Quantum Communication
Creators: name: Bhattacharya, Some Sankar
name: Maity, Ananda G.
name: Guha, Tamal
name: Chiribella, Giulio
name: Banik, Manik
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We introduce the task of random-receiver quantum communication, in which a sender transmits a quantum message to a receiver chosen from a list of n spatially separated parties. The choice of receiver is unknown to the sender, but is known by the n parties, who coordinate their actions by exchanging classical messages. In normal conditions, random-receiver quantum communication requires a noiseless quantum communication channel from the sender to each of the n receivers. In contrast, we show that random-receiver quantum communication can take place through entanglement-breaking channels if the order of such channels is controlled by a quantum bit that is accessible through quantum measurements. Notably, this phenomenon cannot be mimicked by allowing free quantum communication between the sender and any subset of k
description: 11 pages, 4 figures
Macrosiphum lapponicum Shaposhnikov 1964
Creators: name: Albrecht, Anders Christian
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Aphidomorpha
Aphididae
Macrosiphum
Macrosiphum lapponicum

description: Macrosiphum lapponicum Shaposhnikov, 1964   Diagnosis
Diagnosis based on Heie (1994). Abdominal dorsum membranous, segmental borders distinct. Apt. about 4 mm, green, yellowish or reddish. Ant. segment 3 with more than 30 rhinaria. Monoecious.  Recorded host
 Athyriaceae: Athyrium distentifolium.   Distribution
Known from NW Russia only.
description: Published as part of Albrecht, Anders Christian, 2015, Identification guide to Nordic aphids associated with mosses, horsetails and ferns (Bryophyta, Equisetophyta, Polypodiophyta) (Insecta, Hemiptera, Aphidoidea), pp. 1-55 in European Journal of Taxonomy 145 on page 41, DOI: 10.5852/ejt.2015.145, http://zenodo.org/record/3787410
Thermal rectification through a nonlinear quantum resonator
Creators: name: Bhandari, Bibek
name: Erdman, Paolo Andrea
name: Fazio, Rosario
name: Paladino, Elisabetta
name: Taddei, Fabio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a comprehensive and systematic study of thermal rectification in a prototypical low-dimensional quantum system -- a non-linear resonator: we identify necessary conditions to observe thermal rectification and we discuss strategies to maximize it. We focus, in particular, on the case where anharmonicity is very strong and the system reduces to a qubit. In the latter case, we derive general upper bounds on rectification which hold in the weak system-bath coupling regime, and we show how the Lamb shift can be exploited to enhance rectification. We then go beyond the weak-coupling regime by employing different methods: i) including co-tunneling processes, ii) using the non-equilibrium Green's function formalism and iii) using the Feynman-Vernon path integral approach. We find that the strong coupling regime allows us to violate the bounds derived in the weak-coupling regime, providing us with clear signatures of high order coherent processes visible in the thermal rectification. In the general case, where many levels participate to the system dynamics, we compare the heat rectification calculated with the equation of motion method and with a mean-field approximation. We find that the former method predicts, for a small or intermediate anharmonicity, a larger rectification coefficient.
description: 31 pages, 16 figures
Learning needs of liver recipients during convalescence
Creators: name: Beyer, Elaine Millie
Publisher: name: University of British Columbia
Year: 2009

description: Client education is an important aspect in the provision of holistic care for those clients who have undergone liver transplantation. Yet there remains a paucity of research that identifies the learning needs of liver recipients. Research pertaining to transplantation addresses such issues as functional and psychosocial outcomes, stressors, information needs of the family, and quality of life following transplantation. The majority of the studies are quantitative in method and employ questionnaires to obtain data. As a result, liver recipients' perceptions of their learning needs during convalescence have not been explored. Grounded theory provides the research design for this qualitative study which explores the learning needs of clients who have undergone liver transplantation during convalescence. In utilizing this research design, common circumstances, experiences, meanings and behaviours were taken into consideration. Symbolic interactionism was the conceptual framework for this study which enabled common circumstances, experiences, meanings, and behaviours to be understood from the perspective of those who have actually experienced liver transplantation. There were 6 study participants who had undergone liver transplantation of whom 5 were interviewed twice and the other participant only once. Data analysis was simultaneously carried out with data collection utilizing the constant comparison methods as outlined by Corbin and Strauss (1990). The participants' learning needs were identified to entail "Crucial Learning Needs" and "Knowing What to Expect". Three main categories emerged from the latter area which include: mastering recovery, transition, and reflection. Each category had within it several subcategories. As a result of this study, health care professionals may anticipate and assess liver recipients' learning needs and have insight into the experience of convalescence following liver transplantation. Implications for nursing practice and research have emerged which are addressed.
Evidence for multimagnon-mediated nuclear spin relaxation in the intertwining double-cain ferrimagnet $Ca_3 Cu_3 (PO_4)_4$
Creators: name: Yamamoto, Shoji
name: Hori, Hiromitsu
name: Furukawa, Yuji
name: Nishisaka, Yusuke
name: Sumida, Yuzuru
name: Yamada, Kiyotaka
name: Kumagai, Ken-ichi
name: Asano, Takayuki
name: Inagaki, Yuji
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The nuclear spin-lattice relaxation time $T_1$ of $^{31}P$ nuclei in the title compound is measured for the first time and interpreted in terms of a modified spin-wave theory. We establish a novel scenario for one-dimensional ferrimagnetic spin dynamics -- it is three-magnon processes enhanced by exchange scattering, rather than Raman processes, that make the major contribution to $1/T_1$.
description: 6 pages with 7 figures embedded
Examining axion-like particles with superconducting radio-frequency cavity
Creators: name: Salnikov, Dmitry
name: Satunin, Petr
name: Kirpichnikov, D. V.
name: Fitkevich, Maxim
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We address production of massive axion-like particles by two electromagnetic modes inside a superconducting radio-frequency (SRF) cylindrical cavity. We discuss in detail the choice of pump modes and cavity design. We numerically compute time-averaged energy density of produced axion field for various cavity modes and wide range of axion masses. This allows us to estimate optimal conditions for axion production within a cavity. In addition, we consider photon regeneration process initiated by produced axion field in a screened radio-frequency cavity and derive constraints in parameter space $(g_{aγγ},\ m_a)$ for different choice of pump modes.
description: 22 pages, 6 figures, 1 table
The History of Petroleum Pollution in Malaysia; Urgent Need for Integrated Prevention Approach
Creators: name: Mahyar Sakari
name: Zakaria, Mohamad Pauzi
name: Mohamed, Che Abd Rahim
name: Nordin Haji Lajis
name: Kuhan Chandru
name: Pourya Shahpoury Bahry
name: Mohammadreza Mohammad Shafiee
name: Anita, Sofia
Publisher: name: Thai Society of Higher Education Institutes on Environmen
Year: 2010
Subjects: petroleum pollution,source identification,PAHs,integrated management,Malaysia

description: special issue, 3, EnvironmentAsia
Modeling and Understanding Ethereum Transaction Records via a Complex Network Approach
Creators: name: Lin, Dan
name: Wu, Jiajing
name: Yuan, Qi
name: Zheng, Zibin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: As the largest public blockchain-based platform supporting smart contracts, Ethereum has accumulated a large number of user transaction records since its debut in 2014. Analysis of Ethereum transaction records, however, is still relatively unexplored till now. Modeling the transaction records as a static simple graph, existing methods are unable to accurately characterize the temporal and multiplex features of the edges. In this brief, we first model the Ethereum transaction records as a complex network by incorporating time and amount features of the transactions, and then design several flexible temporal walk strategies for random-walk based graph representation of this large-scale network. Experiments of temporal link prediction on real Ethereum data demonstrate that temporal information and multiplicity characteristic of edges are indispensable for accurate modeling and understanding of Ethereum transaction networks.
description: 5 pages, 6 figures. arXiv admin note: substantial text overlap with arXiv:1905.08038
Curvature driven acceleration : a utopia or a reality ?
Creators: name: Das, Sudipta
name: Banerjee, Narayan
name: Dadhich, Naresh
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The present work shows that a combination of nonlinear contribution from the Ricci curvature in Einstein field equations can drive a late time acceleration of expansion of the universe. The transit from the decelerated to the accelerated phase of expansion takes place smoothly without having to resort to a study of asymptotic behaviour. This result emphasizes the need for thorough and critical examination of models with nonlinear contribution from the curvature.
description: 8 pages, 4 figures
Effect of Activation Temperature and Heating Duration on Physical Characteristics of Activated Carbon Prepared from Agriculture Waste
Creators: name: Tham Yee Jun
name: Shamala Devi Arumugam
name: Latip, Nur Hidayah Abdul
name: Abdullah, Ahmad Makmom
name: Puziah Abdul Latif
Publisher: name: Thai Society of Higher Education Institutes on Environmen
Year: 2010
Subjects: durian shell,activation temperature,heating duration,phosphoric acid,BET surface area

description: special issue, 3, EnvironmentAsia