cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Effects of domain walls on hole motion in the two-dimensional t-J model at finite temperature
Creators: name: Riera, Jose A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The t-J model on the square lattice, close to the t-J_z limit, is studied by quantum Monte Carlo techniques at finite temperature and in the underdoped regime. A variant of the Hoshen-Koppelman algorithm was implemented to identify the antiferromagnetic domains on each Trotter slice. The results show that the model presents at high enough temperature finite antiferromagnetic (AF) domains which collapse at lower temperatures into a single ordered AF state. While there are domains, holes would tend to preferentially move along the domain walls. In this case, there are indications of hole pairing starting at a relatively high temperature. At lower temperatures, when the whole system becomes essentially fully AF ordered, at least in finite clusters, holes would likely tend to move within phase separated regions. The crossover between both states moves down in temperature as doping increases and/or as the off-diagonal exchange increases. The possibility of hole motion along AF domain walls at zero temperature in the fully isotropic t-J is discussed.
description: final version, to appear in Physical Review B
Transparent Spin Method for Spin Control of Hadron Beams in Colliders
Creators: name: Filatov, Yu. N.
name: Kondratenko, A. M.
name: Kondratenko, M. A.
name: Derbenev, Ya. S.
name: Morozov, V. S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: We present a concept for control of the ion polarization, called a transparent spin method. The spin transparency is achieved by designing such a synchrotron structure that the net spin rotation angle in one particle turn is zero. The polarization direction of any ions including deuterons can be efficiently controlled using weak quasi-static fields. These fields allow for dynamic adjustment of the polarization direction during an experiment. The main features of the Transparent Spin method are illustrated in a figure-8 collider. The results are relevant to the Electron-Ion Collider considered in the US, the ion-ion collider NICA constructed in Russia, and a polarized Electron-ion collider planned in China.
The Amenity Costs of Offshore Windfarms: Evidence from a Choice Experiment
Creators: name: Lutzeyer, Sanja
name: Phaneuf, Daniel J.
name: Taylor, Laura O.
name: Lutzeyer, Sanja
name: Phaneuf, Daniel J.
name: Taylor, Laura O.
Publisher: name: Unknown
Year: 2017
Subjects: subject: Environmental Economics and Policy
subject: offshore wind farms
subject: choice experiment
subject: rental market
subject: latent class models

description: We conduct a choice-experiment with individuals that recently rented a vacation property along the North Carolina coastline to assess the impacts of a utility-scale wind farm on their rental decisions. Visualizations were presented to survey respondents that varied both the number of turbines and their proximity to shore. Results indicate that there is not a scenario for which respondents would be willing to pay more to rent a home with turbines in view, as compared to the baseline view with no turbines in sight. Further, there is a substantial portion of the survey population that would change their vacation destination if wind farms were placed within visual range of the beach. The rental discounts required to attract the segment of the survey population most amenable to viewing wind farms still indicate that rental value losses of up to ten percent are possible if a utility-scale wind farm is placed within 8 miles of shore.
The Duality between IIB String Theory on PP-wave and N=4 SYM: a Status Report
Creators: name: Russo, Rodolfo
name: Tanzini, Alessandro
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The aim of this report is to give an overview of the duality between type IIB string theory on the maximally supersymmetric PP-wave and the BMN sector of N=4 Super Yang-Mills theory. The general features of the string and the field theory descriptions are reviewed, but the main focus of this report is on the comparison between the two sides of the duality. In particular, it is first explained how free IIB strings emerge on the gauge theory side and then the generalizations of this relation to the full interacting theory are considered. An ``historical'' approach is taken and the various proposals presented in the literature are described.
description: 35 pages, 5 figures; Contribution to the proceedings of the Copenhagen RTN workshop, 15-20 September 2003; v3, few comments added, misprints corrected
Agrilus luderwaldti Obenberger 1933
Creators: name: Curletti, Gianfranco
name: Migliore, Letizia
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Buprestidae
Agrilus
Agrilus luderwaldti

description: Agrilus luderwaldti Obenberger, 1933
 Agrilus luderwaldti Obenberger, 1933a: 11.
 Material examinado: 4 exs., BRASIL, Santa Catarina, Florianópolis, M. Tavares, XII.[18]97?, Lane leg. ; Joinville, I.1943, Dirings leg.; idem, X.1943; Pará, Itaituba, Rio Tapajós, VI.1962, Dirings leg.
description: Published as part of Curletti, Gianfranco & Migliore, Letizia, 2014, O gênero Agrilus Curtis, 1829 nas coleções do Museu de Zoologia da Universidade de São Paulo (Coleoptera: Buprestidae), pp. 81-106 in Papéis Avulsos de Zoologia (São Paulo) (São Paulo) 54 (8) on page 94, DOI: 10.1590/0031-1049.2014.54.08, http://zenodo.org/record/4656297
1+1 Dimensional Compactifications of String Theory
Creators: name: Goheer, Naureen
name: Kleban, Matthew
name: Susskind, Leonard
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We argue that stable, maximally symmetric compactifications of string theory to 1+1 dimensions are in conflict with holography. In particular, the finite horizon entropies of the Rindler wedge in 1+1 dimensional Minkowski and anti de Sitter space, and of the de Sitter horizon in any dimension, are inconsistent with the symmetries of these spaces. The argument parallels one made recently by the same authors, in which we demonstrated the incompatibility of the finiteness of the entropy and the symmetries of de Sitter space in any dimension. If the horizon entropy is either infinite or zero the conflict is resolved.
description: 11 pages, 2 figures v2: added discussion of AdS_2 and comments
Light-matter interaction in van der Waals heterostructures
Creators: name: Deilmann, Thorsten
name: Rohlfing, Michael
name: Wurstbauer, Ursula
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Even if individual two-dimensional materials own various interesting and unexpected properties, the stacking of such layers leads to van der Waals solids which unite the characteristics of two dimensions with novel features originating from the interlayer interactions. In this topical review, we cover fabrication and characterization of van der Waals heterosructures with a focus on heterobilayers made of monolayers of semiconducting transition metal dichalcogenides. Experimental and theoretical techniques to investigate those heterobilayers are introduced. Most recent findings focusing on different transition metal dichalcogenides heterostructures are presented and possible optical transitions between different valleys, appearance of moire patterns and signatures of moire excitons are discussed. The fascinating and fast growing research on van der Waals hetero-bilayers provide promising insights required for their application as emerging quantum-nano materials.
description: 14 pages, 6 figures
Randomized Safety Inspections and Risk Exposure on the Job: Quasi-Experimental Estimates of the Value of a Statistical Life
Creators: name: Lee, Jonathan M.
name: Taylor, Laura O.
name: Lee, Jonathan M.
name: Taylor, Laura O.
Publisher: name: Unknown
Year: 2017
Subjects: Environmental Economics and Policy

description: The value of a statistical life (VSL) is a critical driver of estimated benefits for federal policies designed to improve human health, safety, and environmental exposures. The vast majority of empiri-cal evidence on the magnitude of the VSL arises from hedonic wage models that have been plagued by measurement error and omitted variables. This paper employs randomly assigned workplace safety inspections to instrument for plant-level risks in a quasi-experimental design to address these limitations. We provide credi-ble causal evidence for the existence of compensating wages for fa-tality risks and estimate a VSL between $8 and $10 million ($2016).
Voluntary programs to encourage refuges for pesticide resistance management: lessons from a quasi-experiment
Creators: name: Brown, Zachary S.
name: Brown, Zachary S.
Publisher: name: Unknown
Year: 2017
Subjects: subject: Environmental Economics and Policy
subject: resistance management
subject: Bt refuges
subject: quasi-experiments
subject: moral suasion
subject: difference-indifferences
subject: fractional regression
subject: discrete changes-in-changes
subject: matching

description: Economists often treat pesticide resistance as a common-pool resource problem. While pecuniary economic incentives are the standard prescription for open-access market failures arising with such resources, non-pecuniary behavioral approaches are also effective in some cases. Yet non-pecuniary instruments have not previously been evaluated for managing pesticide resistance. I empirically evaluate the performance of such an intervention to manage pest resistance to genetically engineered Bacillus thuringiensis (Bt) corn. Regulations by the US Environmental Protection Agency mandate refuges to delay the evolution of Bt resistance. To satisfy Bt product permitting requirements with the EPA, the agricultural company Monsanto piloted a social marketing program to promote refuge in 17 North Carolina counties in 2013-2014. Using seed sales data from 2013 to 2016 for the whole of North Carolina, I estimate multiple econometric models, including linear difference-in-differences (DID), fractional DID, discrete changes-in-changes, and matching to identify the average treatment effect (ATE) of the program on growers’ refuge planting decisions. Results suggest that if it had covered all corn growers in North Carolina, the intervention would have led the average grower to plant between 2.6% and 5.8% (depending on model) more refuge in the 2014 season immediately following the program, than would have been the case without the program. The ATE roughly halves in 2015 and vanishes by 2016. Econometric analysis suggests the program increased by 12% the average probability of planting any refuge in 2014. Evidence is mixed for effects of the intervention on grower compliance with mandated refuge thresholds. Informed by behavioral economics research on other environmental and resource policies, I discuss the implications of these findings for pesticide resistance management.
Agrilus mansuetus Thomson 1879
Creators: name: Curletti, Gianfranco
name: Migliore, Letizia
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Buprestidae
Agrilus
Agrilus mansuetus

description: Agrilus mansuetus Thomson, 1879
 Agrilus mansuetus Thomson, 1879: 59.
 Material examinado: 2 exs., BRASIL, Goiás, Leopoldo Bulhões, XII.1950, Dirings leg. ; Mato Grosso do Sul, Três Lagoas, (Fazenda Beija-flor), 15-30.V.1964, Expedição do Departamento de Zoologia leg.
description: Published as part of Curletti, Gianfranco & Migliore, Letizia, 2014, O gênero Agrilus Curtis, 1829 nas coleções do Museu de Zoologia da Universidade de São Paulo (Coleoptera: Buprestidae), pp. 81-106 in Papéis Avulsos de Zoologia (São Paulo) (São Paulo) 54 (8) on page 94, DOI: 10.1590/0031-1049.2014.54.08, http://zenodo.org/record/4656297
New SUB Rooftop Garden Report
Creators: name: Amundson, Benjamin
name: Ghani, Janbaaz
name: Shen, Joseph
name: Ho, Nanette
name: Szeto, Patricia
name: Shi, XiaoLin
Publisher: name: The University of British Columbia
Year: 2010

description: Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
Disentangling Property Value Impacts of Environmental Contamination from Locally Undesirable Land Uses: Implications for Measuring Post-Cleanup Stigma
Creators: name: Taylor, Laura O.
name: Phaneuf, Daniel J.
name: Liu, Xiangping
name: Taylor, Laura O.
name: Phaneuf, Daniel J.
name: Liu, Xiangping
Publisher: name: Unknown
Year: 2016
Subjects: Environmental Economics and Policy

description: This research seeks to identify the impact of environmental contamination on residential housing prices separate from land use externalities associated with the contaminated sites. This is possible in an empirical model that considers the influence of uncontaminated commercial properties on home values concurrently with contaminated property influences. Our approach addresses an important source of omitted variable bias that has not been fully recognized in the literature, and it allows identification of stigma effects in a way not possible in past studies. We estimate difference-in-differences models that pool observations across a metro area and across time, as well as repeat sales models that rely on multiple transactions per home. Results indicate that environmental contamination more than doubles the negative influence commercial properties have on neighboring residential home values. Furthermore, we find little evidence of stigma effects once a contaminated site is remediated. The negative spillover effects associated with remediated contaminated sites are largely indistinguishable from the spillover effects from commercial properties with no known contamination.
Decaying neutrinos and implications from the supernova relic neutrino observation
Creators: name: Ando, Shin'ichiro
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We propose that supernova relic neutrino (SRN) observation can be used to set constraints on the neutrino decay models. Because of the long distance scale from cosmological supernovae to the Earth, SRN have possibility to provide much stronger limit than the present one obtained from solar neutrino observation. Since the currently available data are only the upper limit on the flux integrated over $E_{\barν_e}>19.3$ MeV, the decay models on which we can set constraints is quite restricted; they must satisfy specific conditions such that the daughter neutrinos are active species, the neutrino mass spectrum is quasi-degenerate, and the neutrino mass hierarchy is normal. Our numerical calculation clearly indicates that the neutrino decay model with $(τ_2/m,τ_3/m)\alt (10^{10},10^{10})$ [s/eV], where $τ_i$ represents the lifetime of mass eigenstates $\barν_i$, appears to give the SRN flux that is larger than the current upper limit. However, since the theoretical SRN prediction contains many uncertainties concerning a supernova rate in the universe or simulation of supernova explosions, we cannot conclude that there exists the excluded parameter region of the neutrino lifetime. In the near future, further reduced upper limit is actually expected, and it will provide more severe constraints on the neutrino decay models.
description: 15 pages, 2 figures, corrected typos, added references. Final version to appear in Physics Letters B
Disaster Preparedness of National High Schools.pdf
Creators: name: Tan, Marilou
Publisher: name: figshare
Year: 2020
Subjects: Uncategorized

description: ABTRACT. The study on “Disaster Preparedness of National High School: An Assessment” is conducted at Kidapawan City division consisting of 95 teachers and 57 local officials. The purpose of this study is to assess the disaster preparedness of the schools in terms of profile of the school, level of awareness, extent of implementation and degree of satisfaction on the implementation of the disaster programs. This study uses the evaluative research design using a survey questionnaire to determine the interventions given after the findings have been established. Based on the findings of the study, the safety facilities in schools are not sufficient and complete. Most of the schools do not have fire hydrant and fire hose, as well as smoke alarms and emergency vehicle. The earthquake drill is the leading executed disaster program while fire drill is the least performed disaster preparedness program by the school and by the local government. The insufficiency of safety facilities can lead to vulnerability of the schools towards disasters thus it makes the school an unsafe place for all the learners and teachers. Executing preparedness is considered as an activity developed by concerned stakeholders to preempt or respond to and making immediate recovery from an emergent calamity and hazards. These disaster preparedness practices are being exercise regularly and equally because both disasters are life and property damaging.
The Fornax 3D project: Non-linear colour-metallicity relation of globular clusters
Creators: name: Fahrion, K.
name: Lyubenova, M.
name: Hilker, M.
name: van de Ven, G.
name: Falcón-Barroso, J.
name: Leaman, R.
name: Martín-Navarro, I.
name: Bittner, A.
name: Coccato, L.
name: Corsini, E. M.
name: Gadotti, D. A.
name: Iodice, E.
name: McDermid, R. M.
name: Pinna, F.
name: Sarzi, M.
name: Viaene, S.
name: de Zeeuw, P. T.
name: Zhu, L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Globular cluster (GC) systems of massive galaxies often show a bimodal colour distribution. This has been interpreted as a metallicity bimodality, created by a two-stage galaxy formation where the red, metal-rich GCs were formed in the parent halo and the blue metal-poor GCs were accreted. This interpretation, however, crucially depends on the assumption that GCs are exclusively old stellar systems with a linear colour-metallicity relation (CZR). The shape of the CZR and range of GC ages are currently under debate, because their study requires high quality spectra to derive reliable stellar population properties. We determined metallicities with full spectral fitting from a sample of 187 GCs with high spectral signal-to-noise ratio in 23 galaxies of the Fornax cluster that were observed as part of the Fornax 3D project. The derived CZR from this sample is non-linear and can be described by a piecewise linear function with a break point at ($g - z$) $\sim$ 1.1 mag. The less massive galaxies in our sample ($M_\ast < 10^{10} M_\odot$) appear to have slightly younger GCs, but the shape of the CZR is insensitive to the GC ages. Although the least massive galaxies lack red, metal-rich GCs, a non-linear CZR is found irrespective of the galaxy mass, even in the most massive galaxies ($M_\ast \geq 10^{11} M_\odot$). Our CZR predicts narrow unimodal GC metallicity distributions for low mass and broad unimodal distributions for very massive galaxies, dominated by a metal-poor and metal-rich peak, respectively, and bimodal distributions for galaxies with intermediate masses (10$^{10}$ $\leq$ $M_\ast < 10^{11} M_\odot$) as a consequence of the relative fraction of red and blue GCs. The diverse metallicity distributions challenge the simple differentiation of GC populations solely based on their colour.
description: 12 pages + appendix, updated to published version
Charge-localization and isospin-blockade in vertical double quantum dots
Creators: name: Jacob, David
name: Wunsch, Bernhard
name: Pfannkuche, Daniela
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Charge localization seems unlikely to occur in two vertically coupled symmetric quantum dots even if a small bias voltage breaks the exact isospin-symmetry of the system. However for a three-electron double quantum dot we find a strong localization of charges at certain vertically applied magnetic fields. The charge localization is directly connected to new ground state transitions between eigenstates differing only in parity. The transitions are driven by magnetic field dependent Coulomb correlations between the electrons and give rise to strong isospin blockade signatures in transport through the double dot system.
description: 10 pages, 4 figures
Pub1 links ATG1 mRNA export and translation
Creators: name: Metur, Shree Padma
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 310103
subject: Cell metabolism
classificationCode: 310108
subject: Protein trafficking

description: (A) Npl3 and Pub1 interaction is RNA dependent: An Npl3-PA tagged strain expressing a centromeric Pub1-sfGFP was subjected to nitrogen starvation and harvested after 4 h. Npl3-PA was affinity isolated using IgG Sepharose beads with or without RNase in +N and -N conditions and immunoblotted to determine Npl3 and Pub1 interaction. (B) Pub1 localizes to different polysome compartments: Pub1-GFP (SPY069+pADH1 PUB1-GFP) and Rpl15-GFP (SPY069) strains were subjected to nitrogen starvation for 4 h and equal fractions were collected by polysome profiling following ultracentrifugation in a sucrose gradient. Two consecutive fractions were combined, and proteins were analyzed by immunoblotting. (C) Npl3 is predominantly localized to the nucleus: Npl3 was tagged with mNeonGreen (SPY067) and imaged under rich medium (+N) and nitrogen starvation medium (-N) conditions. DAPI was used to stain DNA. Data are representative of 200 cells analyzed. Scale bar: 5 µm. (D) Nuclear localization of Npl3 is required for it to bind to ATG1 mRNA: RNA immunoprecipitation was performed using WT (untagged, SEY6210), Npl3-PA (SPY060) and Npl3E409K-PA (SPY057) strains and ATG1 mRNA abundance was determined by qRT-PCR. Data are representative of three independent replicates, showing mean +/-SD. **** p value <0.0001. (E) Loss of Pub1 causes defects in ATG1 mRNA export, similar to npl3∆: WT (WLY176), npl3∆ (SPY077) and pub1∆ (SPY006) strains were subjected to nitrogen starvation for 4 h and fractionated to obtain nuclear and cytoplasmic fractions. ATG1 abundance was determined by qRT-PCR. PGK1 was used as a control. Two-way ANOVA was performed to determine statistical significance. **** p value = 0.0005, *** p value = 0.0097. (F) Npl3 is required for Pub1-ATG1 interaction during nitrogen starvation: A centromeric plasmid harboring Pub1-sfGFP was expressed in WT (WLY176) and npl3∆ (SPY077) strains and subjected to nitrogen starvation for 4 h, following which GFP-trap nanobeads were used to immunoprecipitate Pub1. Untagged WLY176 was used as a control. ATG1 3' UTR abundance was determined by qRT-PCR. Data are representative of three independent biological replicates, showing mean +/- SD. Two-way ANOVA was performed to determine statistical significance. ** p value = 0.0095. (G) Pub1 interacts with ribosomal components and translation factors during nitrogen starvation: A Pub1-sf-GFP-expressing and untagged WT (SEY6210) strain were subjected to nitrogen starvation for 4 h and immunoprecipitated using GFP-trap nanobeads. The interactome of Pub1 was identified by mass spectrometry. Data are representative of two independent replicates. Student’s t test was used to determine statistical significance. A p-value above 0.05 was considered significant.
Large hadron collider constraints on some simple Z ′ models for b → s μ + μ - anomalies
Creators: name: Allanach, B. C.
name: Butterworth, J. M.
name: Corbett, Tyler
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Regular Article - Theoretical Physics

description: Abstract: We examine current Large Hadron Collider constraints on some simple Z′ models that significantly improve on Standard Model fits to b→sμ+μ- transition data. The models that we consider are the ‘third family baryon number minus second family lepton number’ (B3-L2) model and the ‘third family hypercharge’ model and variants. The constraints are applied on parameter regions of each model that fit the b→sμ+μ- transition data and come from high-mass Drell–Yan di-muons and measurements of Standard Model processes. This latter set of observables place particularly strong bounds upon the parameter space of the B3-L2 model when the mass of the Z′ boson is less than 300 GeV.
Testing Kerr black hole mimickers with quasi-periodic oscillations from GRO J1655-40
Creators: name: Jiang, Xin
name: Wang, Peng
name: Yang, Haitang
name: Wu, Houwen
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Regular Article - Theoretical Physics

description: Abstract: The measurements of quasi-periodic oscillations (QPOs) provide a quite powerful tool to test the nature of astrophysical black hole candidates in the strong gravitational field regime. In this paper, we use QPOs within the relativistic precession model to test a recently proposed family of rotating black hole mimickers, which reduce to the Kerr metric in a limiting case, and can represent traversable wormholes or regular black holes with one or two horizons, depending on the values of the parameters. In particular, assuming that the compact object of GRO J1655-40 is described by a rotating black hole mimicker, we perform a χ-square analysis to fit the parameters of the mimicker with two sets of observed QPO frequencies from GRO J1655-40. Our results indicate that although the metric around the compact object of GRO J1655-40 is consistent with the Kerr metric, a regular black hole with one horizon is favored by the observation data of GRO J1655-40.
The Chevalley group G_{2}(2) of order 12096 and the octonionic root system of E_{7}
Creators: name: Koca, Mehmet
name: Koc, Ramazan
name: Koca, Nazife O.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The octonionic root system of the exceptional Lie algebra E_8 has been constructed from the quaternionic roots of F_4 using the Cayley-Dickson doubling procedure where the roots of E_7 correspond to the imaginary octonions. It is proven that the automorphism group of the octonionic root system of E_7 is the adjoint Chevalley group G_2(2) of order 12096. One of the four maximal subgroups of G_2(2) of order 192 preserves the quaternion subalgebra of the E_7 root system. The other three maximal subgroups of orders 432,192 and 336 are the automorphism groups of the root systems of the maximal Lie algebras E_6xU(1), SU(2)xSO(12), and SU(8) respectively. The 7-dimensional manifolds built with the use of these discrete groups could be of potential interest for the compactification of the M-theory in 11-dimension.
Gauge Fields, Geometric Phases, and Quantum Adiabatic Pumps
Creators: name: Zhou, Huan-Qiang
name: Cho, Sam Young
name: McKenzie, Ross H.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Quantum adiabatic pumping of charge and spin between two reservoirs (leads) has recently been demonstrated in nanoscale electronic devices. Pumping occurs when two or more system parameters are varied in a cyclic manner and sufficiently slowly that the quantum system always remains in its ground state. We show that quantum pumping has a natural geometric representation in terms of gauge fields (both Abelian and non-Abelian) defined on the space of system parameters. We make explicit the similarities and differences with Berry's geometric phase. Tunneling from a scanning tunneling microscope tip through a magnetic atom could be used to demonstrate the non-Abelian character of the gauge field.
description: 1 table, 1 figure, and 5 pages. Connection between the geometric phase and the pumping currents is clarified
طرح درسی . نام درس: ساخت زبان فارسی. نیم سال اول 1399.
Creators: name: Esmaeelpour, Elmira
Publisher: name: figshare
Year: 2020
Subjects: subject: Linguistics
subject: FOS: Languages and literature
subject: 200323 Translation and Interpretation Studies

description:
طرح درسی . نام درس: ساخت زبان فارسی. نیم سال اول 1399.
The Fornax 3D project: Globular clusters tracing kinematics and metallicities
Creators: name: Fahrion, K.
name: Lyubenova, M.
name: Hilker, M.
name: van de Ven, G.
name: Falcón-Barroso, J.
name: Leaman, R.
name: Martín-Navarro, I.
name: Bittner, A.
name: Coccato, L.
name: Corsini, E. M.
name: Gadotti, D. A.
name: Iodice, E.
name: McDermid, R. M.
name: Pinna, F.
name: Sarzi, M.
name: Viaene, S.
name: de Zeeuw, P. T.
name: Zhu, L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Globular clusters (GCs) are found ubiquitously in massive galaxies and due to their old ages, they are regarded as fossil records of galaxy evolution. Spectroscopic studies of GC systems are often limited to the outskirts of galaxies, where GCs stand out against the galaxy background and serve as bright tracers of galaxy assembly. In this work, we use the capabilities of the Multi Unit Explorer Spectrograph (MUSE) to extract a spectroscopic sample of 722 GCs in the inner regions ($\lesssim 3 R_\text{eff}$) of 32 galaxies in the Fornax cluster. These galaxies were observed as part of the Fornax 3D project, a MUSE survey that targets early and late-type galaxies within the virial radius of Fornax. After accounting for the galaxy background in the GC spectra, we extracted line-of-sight velocities and determined metallicities of a sub-sample of 238 GCs. We found signatures of rotation within GC systems, and comparing the GC kinematics and that of the stellar body shows that the GCs trace the spheroid of the galaxies. While the red GCs prove to closely follow the metallicity profile of the host galaxy, the blue GCs show a large spread of metallicities but they are generally more metal-poor than the host.
description: 13 pages + appendix, accepted for publication in A&A, updated to published version
2016_STUDIES_ON_THE_KINETICS_OF_EPOXIDATION.pdf
Creators: name: Denis, Shapovalov
name: Zybaylo, S.M.
name: Ved, V.V.
Publisher: name: figshare
Year: 2020
Subjects: subject: 30306 Synthesis of Materials
subject: FOS: Chemical sciences

description: The kinetics of epoxidation of natural rubber production waste by peracetic
acid generated in situ from hydrogen peroxide and acetic acid solution in biphasic system water‐xylene were studied. The rate constants and the activation energy were found. Insignificant level of side reactions was shown.
On the Speed of Gravity and Relativistic v/c Corrections to the Shapiro Time Delay
Creators: name: Kopeikin, Sergei M.
name: Fomalont, Edward B.
Publisher: name: arXiv
Year: 2003
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recent papers by Samuel declared that the linearized post-Newtonian v/c effects are too small to have been measured in the recent experiment involving Jupiter and quasar J0842+1845 that was used to measure the ultimate speed of gravity defined as a fundamental constant entering in front of each time derivative of the metric tensor in the Einstein gravity field equations. We describe our Lorentz-invariant formulation of the Jovian deflection experiment and confirm that v/c effects are do observed, as contrasted to the erroneous claim by Samuel, and that they vanish if and only if the speed of gravity is infinite.
description: 7 pages. Final version published in Physics Letters A
Agrilus martinsi Curletti & Migliore 2014, sp. nov.
Creators: name: Curletti, Gianfranco
name: Migliore, Letizia
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Buprestidae
Agrilus
Agrilus martinsi

description: Agrilus martinsi sp. nov.
 (Fig. 11)
 Etimologia: a espécie é dedicada com estima ao Professor Ubirajara Martins de Souza de São Paulo, coletor da espécie.
Comprimento 5,2 mm. Fronte dourada, glabra. Clípeo sem carena transversal. Antenas curtas, azul-metálicas, lobadas a partir do IV antenômero. Pronoto com pubescência branco-prateada e brilhante na base. Carena pré-umeral ausente. Carenas marginais unidas anterior e posteriormente, mais distânciadas no meio. Esclerite gular com margem anterior inteira. Processo prosternal com lados paralelos. Lado ventral do corpo preto. Mesosterno regularmente pubescente de branco. Urosternito I com pubescência branca na parte médio-anterior, II e III com mancha de pubescência lateral. Pernas pretas. Unhas simplismente denticuladas. Metatarso mais curto que a metatíbia, com artículo I mais longo do que II + III + IV.
 Material tipo: Holótipo ♀: BRASIL, São Paulo, Itu (Fazenda Pau d’Alho), IX.1959, U. R. Martins leg. (MZUSP).
 Discussão: O conjunto do pronoto vermelho na parte anterior e o desenho da pubescência elitral fazem com que a espécie seja única na fauna neotropical.
description: Published as part of Curletti, Gianfranco & Migliore, Letizia, 2014, O gênero Agrilus Curtis, 1829 nas coleções do Museu de Zoologia da Universidade de São Paulo (Coleoptera: Buprestidae), pp. 81-106 in Papéis Avulsos de Zoologia (São Paulo) (São Paulo) 54 (8) on page 94, DOI: 10.1590/0031-1049.2014.54.08, http://zenodo.org/record/4656297
Statistical analysis of Gene and Intergenic DNA Sequences
Creators: name: Kugiumtzis, D.
name: Provata, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Genomics (q-bio.GN)
subject: FOS: Biological sciences

description: Much of the on-going statistical analysis of DNA sequences is focused on the estimation of characteristics of coding and non-coding regions that would possibly allow discrimination of these regions. In the current approach, we concentrate specifically on genes and intergenic regions. To estimate the level and type of correlation in these regions we apply various statistical methods inspired from nonlinear time series analysis, namely the probability distribution of tuplets, the Mutual Information and the Identical Neighbour Fit. The methods are suitably modified to work on symbolic sequences and they are first tested for validity on sequences obtained from well--known simple deterministic and stochastic models. Then they are applied to the DNA sequence of chromosome 1 of {\em arabidopsis thaliana}. The results suggest that correlations do exist in the DNA sequence but they are weak and that intergenic sequences tend to be more correlated than gene sequences. The use of statistical tests with surrogate data establish these findings in a rigorous statistical manner.
description: 18 pages, to appear in Physica A
Agrilus matho Obenberger 1933
Creators: name: Curletti, Gianfranco
name: Migliore, Letizia
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Buprestidae
Agrilus
Agrilus matho

description: Agrilus matho Obenberger, 1933
 Agrilus matho Obenberger, 1933a: 18.
 Material examinado: BRASIL, Santa Catarina, Rio Vermelho, 8 exs., XII.1950, Dirings leg.
description: Published as part of Curletti, Gianfranco & Migliore, Letizia, 2014, O gênero Agrilus Curtis, 1829 nas coleções do Museu de Zoologia da Universidade de São Paulo (Coleoptera: Buprestidae), pp. 81-106 in Papéis Avulsos de Zoologia (São Paulo) (São Paulo) 54 (8) on page 94, DOI: 10.1590/0031-1049.2014.54.08, http://zenodo.org/record/4656297
White Dwarfs as Advanced Physics Laboratories. The Axion case
Creators: name: Isern, Jordi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The shape of the luminosity function of white dwarfs (WDLF) is sensitive to the characteristic cooling time and, therefore, it can be used to test the existence of additional sources or sinks of energy such as those predicted by alternative physical theories. However, because of the degeneracy between the physical properties of white dwarfs and the properties of the Galaxy, the star formation history (SFH) and the IMF, it is almost always possible to explain any anomaly as an artifact introduced by the star formation rate. To circumvent this problem there are at least two possibilities, the analysis of the WDLF in populations with different stories, like disc and halo, and the search of effects not correlated with the SFH. These procedures are illustrated with the case of axions.
description: Accepted for publication in the Proceedings of the IAU Symposium 357: White Dwarfs as Probes of Fundamental Physics and Tracers of Planetary, Stellar, and Galactic Evolution. 10 figures
Maxwell's field coupled nonminimally to quadratic torsion: Induced axion field and birefringence of the vacuum
Creators: name: Itin, Yakov
name: Hehl, Friedrich W.
Publisher: name: arXiv
Year: 2003
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider a possible (parity conserving) interaction between the electromagnetic field $F$ and a torsion field $T^α$ of spacetime. For generic elementary torsion, gauge invariant coupling terms of lowest order fall into two classes that are both nonminimal and {\it quadratic} in torsion. These two classes are displayed explicitly. The first class of the type $\sim F T^2$ yields (undesirable) modifications of the Maxwell equations. The second class of the type $\sim F^2 T^2$ doesn't touch the Maxwell equations but rather modifies the constitutive tensor of spacetime. Such a modification can be completely described in the framework of metricfree electrodynamics. We recognize three physical effects generated by the torsion: (i) An axion field that induces an {\em optical activity} into spacetime, (ii) a modification of the light cone structure that yields {\em birefringence} of the vacuum, and (iii) a torsion dependence of the {\em velocity of light.} We study these effects in the background of a Friedmann universe with torsion. {\it File tor17.tex, 02 August 2003}
description: 6 pages
QCD Propagators at non-vanishing temperatures
Creators: name: Gruter, B.
name: Alkofer, R.
name: Maas, A.
name: Wambach, J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the behaviour of the gluon and ghost propagators, especially their infrared properties, at non-vanishing temperatures. To this end we solve their Dyson-Schwinger equations on a torus and find an infrared enhanced ghost propagator and an infrared vanishing gluon propagator.
description: 2 pages, 2 figures; talk given by B.G. at the Erice summer school on Nuclear Physics, Sept. 16 -- 24, 2003, Erice, Italy
R-parity violation assisted thermal leptogenesis in the seesaw mechanism
Creators: name: Farzan, Y.
name: Valle, J. W. F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Successful leptogenesis within the simplest type I supersymmetric seesaw mechanism requires the lightest of the three right-handed neutrino supermultiplets to be heavier than $\sim10^9$ GeV. Thermal production of such (s)neutrinos requires very high reheating temperatures which result in an overproduction of gravitinos with catastrophic consequences for the evolution of the universe. In this letter, we let R-parity be violated through a $λ_i \hat{N}_i \hat{H}_u \hat{H}_d$ term in the superpotential, where $\hat{N}_i$ are right-handed neutrino supermultiplets. We show that in the presence of this term, the produced lepton-antilepton asymmetry can be enhanced. As a result, even for $\hat{N}_1$ masses as low as $10^6$ GeV or less, we can obtain the observed baryon asymmetry of the universe without gravitino overproduction.
description: 4 pages, 1 figure; v2: minor changes, references added
FINANCIAL PERFORMANCE OF OILSEEDS COOPERATIVE— A CASE STUDY OF KARNATAKA OILSEEDS GROWERS' FEDERATION (KOF) LIMITED
Creators: name: Vidya, M. R.
name: Ravi, P. C.
name: Venkataram, J. V.
name: Vidya, M. R.
name: Ravi, P. C.
name: Venkataram, J. V.
Publisher: name: Unknown
Year: 1993
Subjects: Crop Production/Industries
Financial Economics

description: The paper examines the financial performance of Karnataka Cooperative Oilseeds Growers' Federation (KOF) using various financial performance indicators and principal components analysis. The results indicate that although KOF performed well in the initial years of its operation, it could not sustain this performance in the later period, mainly on account of high management and establishment expenses. Profitability, liquidity and leverage-cum -activity being the most important dimensions of performance, the study suggests that KOF should aim at a reasonable profit, improve its liquidity position and increase leverage supported by increased sales to improve its performance in the long run.
Symmetry of Magnetic Quantum Tunneling in Single Molecule Magnet Mn12-acetate
Creators: name: del Barco, E.
name: Kent, A. D.
name: Rumberger, E. M.
name: Hendrickson, D. N.
name: Christou, G.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The symmetry of magnetic quantum tunneling has been studied in the prototype single molecule magnet Mn$_{12}$-acetate using a micro-Hall effect magnetometer and superconducting high field vector magnet system. An average crystal fourfold symmetry is shown to be due to local molecular environments of twofold symmetry that are rotated by 90$^o$ with respect to one another, confirming that disorder which lowers the molecule symmetry is at important to magnetic quantum tunneling. We have studied a subset of these lower (twofold) site symmetry molecules and present evidence for a Berry phase effect consistent with a local twofold symmetry.
description: 4 pages and 3 figures
title: Modelling Scholarly Debate: Conceptual Foundations for Knowledge Domain Analysis Technology
Creators: name: Benn, Neil Jefferson Lavere
Publisher: name: The Open University
Year: 2009

description: Knowledge Domain Analysis (KDA) research investigates computational support for users who desire to understand and/or participate in the scholarly inquiry of a given academic knowledge domain. KDA technology supports this task by allowing users to identify important features of the knowledge domain such as the predominant research topics, the experts in the domain, and the most influential researchers. This thesis develops the conceptual foundations to integrate two identifiable strands of KDA research: Library and Information Science (LIS), which commits to a citation-based Bibliometrics paradigm, and Knowledge Engineering (KE), which adopts an ontology-based Conceptual Modelling paradigm. A key limitation of work to date is its inability to provide machine-readable models of the debate in academic knowledge domains. This thesis argues that KDA tools should support users in understanding the features of scholarly debate as a prerequisite for engaging with their chosen domain.

To this end, the thesis proposes a Scholarly Debate Ontology which specifies the formal vocabulary for constructing representations of debate in academic knowledge domains. The thesis also proposes an analytical approach that is used to automatically detect clusters of viewpoints as particularly important features of scholarly debate. This approach combines aspects of both the Conceptual Modelling and Bibliometrics paradigms. That is, the method combines an ontological focus on semantics and a graph-theoretical focus on structure in order to identify and reveal new insights about viewpoint-clusters in a given knowledge domain. This combined ontological and graph-theoretical approach is demonstrated and evaluated by modelling and analysing debates in two domains. The thesis reflects on the strengths and limitations of this approach, and considers the directions which this work opens up for future research into KDA technology.
2014_OMBINED_REACTIVE_SEPARATION_PROCESS.pdf
Creators: name: Yushko, Vitaliy
name: Denis, Shapovalov
name: Zybaylo, S.M.
Publisher: name: figshare
Year: 2020
Subjects: subject: 30306 Synthesis of Materials
subject: FOS: Chemical sciences

description: The scheme of combined reactive separation process epoxidation of natural rubber scrap in water‐xylene medium was proposed. A quantitative and qualitative asessment of the results of chemical modification was given.
ENERGY AND COST USE-EFFICIENCY FOR PRODUCTION OF MAJOR CROPS UNDER ADVANCE AND TRADITIONAL FARMS OF MADHYA PRADESH
Creators: name: Thakur, C. L.
name: Mishra, B. L.
name: Raghuwanshi, N. K.
name: Thakur, C. L.
name: Mishra, B. L.
name: Raghuwanshi, N. K.
Publisher: name: Unknown
Year: 1993
Subjects: Crop Production/Industries
Resource /Energy Economics and Policy

description: The present study examines the variations in the form and extent of energy utilisation and cost use efficiency in production of major crops along with its operational distribution followed by the assessment of energy gaps between advanced and traditional technologies in Madhya Pradesh. In comparison to the advanced technology of crop production operationwise energy hours spent on various crops under traditional tochnology was considerably lower. The yield levels were also lower under traditional technology. The aggregate output-input energy ratio was highest in case of gram and lowest in case of sugarcane under the traditional technology cf crop production. The total output-input energy ratios ranged from 2.14 for soybean to 29.00 for sugarcane under the advanced technology. The overall sourcewise renewable energy use efficiency was higher on traditional farms while the overall average non-renewable energy use efficiency was higher on advanced farms.
MHD-shock structures of astrospheres: $λ$ Cephei-like astrospheres
Creators: name: Scherer, K.
name: Baalmann, L. R.
name: Fichtner, H.
name: Kleimann, J.
name: Bomans, D. J.
name: Weis, K.
name: Ferreira, S. E. S.
name: Herbst, K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The interpretation of recent observations of bow shocks around O-stars and the creation of corresponding models require a detailed understanding of the associated (magneto-)hydrodynamic structures. We base our study on three-dimensional numerical magneto-)hydrodynamical models, which are analyzed using the dynamically relevant parameters, in particular, the (magneto)sonic Mach numbers. The analytic Rankine-Hugoniot relation for HD and MHD are compared with those obtained by the numerical model. In that context we also show that the only distance which can be approximately determined is that of the termination shock, if it is a hydrodynamical shock. For MHD shocks the stagnation point does not, in general, lie on the inflow line, which is the line parallel to the inflow vector and passing through the star. Thus an estimate via the Bernoulli equation as in the HD case is, in general, not possible. We also show that in O-star astrospheres, distinct regions exist in which the fast, slow, Alfvénic, and sonic Mach numbers become lower than one, implying sub-slow magnetosonic as well as sub-fast and sub-sonic flows. Nevertheless, the analytic MHD Rankine Hugoniot relations can be used for further studies of turbulence and cosmic ray modulation.
description: 14 pages, 9 figures