cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Cognitive Dissonance as a Means of Reducing Hypothetical Bias
Creators: name: Alfnes, Frode
name: Yue, Chengyan
name: Jensen, Helen H.
name: Alfnes, Frode
name: Yue, Chengyan
name: Jensen, Helen H.
Publisher: name: Unknown
Year: 2009
Subjects: subject: apples
subject: cognitive consistency
subject: hypothetical bias
subject: instrument calibration
subject: willingness to pay

description: Hypothetical bias is a persistent problem in stated preference studies. We propose and test a method for reducing hypothetical bias based on the cognitive dissonance literature in social psychology. A central element of this literature is that people prefer not to take inconsistent stands and will change their attitudes and behavior to make them consistent. We find that participants in a stated preference willingness-to-pay study, when told that a nonhypothetical study of similar goods would follow, state significantly lower willingness to pay than participants not so informed. In other words, participants adjust their stated willingness to pay to avoid cognitive dissonance from taking inconsistent stands on their willingness to pay for the good being offered.
Niemeier Lattices and K3 Groups
Creators: name: Zhang, De-Qi
Publisher: name: arXiv
Year: 2004
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14J28, 14J50, 14L30

description: In this note, we consider K3 surfaces X with an action by the alternating group A_5. We show that if a cyclic extension A_5 . C_n acts on X then n = 1, 2, or 4. We also determine the A_5-invariant sublattice of the K3 lattice and its discriminant form.
description: submitted to Proceedings of Conference on Algebraic Geometry -- in honour of Professor I. Dolgachev, Contemporary Math. Amer. Math. Soc
Anisotropic Einstein Yang-Mills Higgs Dark Energy
Creators: name: Orjuela-Quintana, J. Bayron
name: Alvarez, Miguel
name: Valenzuela-Toledo, Cesar A.
name: Rodriguez, Yeinzon
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In the context of the dark energy scenario, the Einstein Yang-Mills Higgs model in the SO(3) representation was studied for the first time by M. Rinaldi (see JCAP 1510, 023 (2015)) in a homogeneous and isotropic spacetime. We revisit this model, finding in particular that the interaction between the Higgs field and the gauge fields generates contributions to the momentum density, anisotropic stress and pressures, thus making the model inconsistent with the assumed background. We instead consider a homogeneous but anisotropic Bianchi-I space-time background in this paper and analyze the corresponding dynamical behaviour of the system. We find that the only attractor point corresponds to an isotropic accelerated expansion dominated by the Higgs potential. However, the model predicts non-negligible anisotropic shear contributions nowadays, i.e. the current Universe can have hair although it will loose it in the future. We investigate the evolution of the equation of state for dark energy and highlight some possible consequences of its behaviour related to the process of large-scale structure formation. As a supplement, we propose the "Higgs triad" as a possibility to make the Einstein Yang-Mills Higgs model be consistent with a homogeneous and isotropic spacetime.
description: LaTeX file in RevTeX 4.1 style, 13 pages, 19 figures. v2: cosmetic changes and references added. Version to appear in Journal of Cosmology and Astroparticle Physics
Helis Academy course FAIR data stewardship 2021, Day 2, Informed consent procedures
Creators: name: Vlianic, Elize
Publisher: name: Zenodo
Year: 2021
Subjects: Helis Academy
FAIR
Data stewardship
Informed consent procedures
Training

description: This presentation is part of the 3rd edition of the Helis Academy FAIR data stewardship (for life sciences) course
 Day 2, March 18, 2021 https://www.aanmelder.nl/fair-data-stewardship-2021
 https://helisacademy.com/en/data-analysis-stewardship Topic: informed consent procedures
Does economic endogeneity of site facilities in recreation demand models lead to statistical endogeneity?
Creators: name: Chen, Min
name: Lupi, Frank
name: Chen, Min
name: Lupi, Frank
Publisher: name: Unknown
Year: 2009
Subjects: subject: Environmental Economics and Policy
subject: Random Utility Models
subject: Facilities
subject: Endogeneity
subject: Monte Carlo simulations

description: Different kinds of endogeneity problems in Random Utility Models of recreation demand have been studied in previous literature. Some site characteristics, like facilities, could be endogenous in an economic sense due to the interplay of supply and demand. That is, it may be that more popular recreation sites tend to have better site characteristics since managers with limited budgets would be more willing to invest in them. If recreation site improvements are more likely to occur at the more popular sites, then might this economic endogeneity cause problems for econometric models linking site demand to facilities. In this paper, we use Monte Carlo simulations to test whether this economic endogeneity will lead to statistical endogeneity.
Urophora lopholomae
Creators: name: Schlüsslmayr, Gerhard
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Tephritidae
Urophora
Urophora lopholomae

description: Urophora lopholomae KORNEYEV & W HITE, 1989
Bgld, Winden, Hackelsberg, 9.6.17, 2 Ex.
Neu für Burgenland. Nach FRANZ (1989) nur 1 Fund aus Ö, angegeben von White.
description: Published as part of Schlüsslmayr, Gerhard, 2018, Erstnachweise von Fliegen (Diptera) für Österreich und einige Bundesländer, pp. 765-800 in Linzer biologische Beiträge 50 (1) on page 776, DOI: 10.5281/zenodo.4004374
Evidence of shifts in intra-household allocation under exogenous changes in family policy and administrative procedures: The case of school enrollment in Chile
Creators: name: Heggeness, Misty L.
name: Heggeness, Misty L.
Publisher: name: Unknown
Year: 2009
Subjects: Consumer/Household Economics
International Development
Public Economics

description: In recent times, economists have argued the unitary model of household utility, which assumes households maximize a single utility function over one household budget constraint, does not accurately describe the economic behavior of households (Chiappori et al. 1993, Alderman et al. 1995, Rosenzweig & Stark 1997, Gray 1998). Some have found empirical evidence rejecting this model (Fortin & Lacroix 1997, Browing & Chiappori 1998, Rangel 2006). Instead, they argue, models should acknowledge the bargaining power of individuals to determine a household’s utility or preferences. This study examines the effects of exogenous changes in family policy and administrative processes on one household consumption variable, children’s education. Specifically, the legalization of divorce and family court wait times for divorce are analyzed. Using panel data and a difference-in-difference approach, I show that implementing pro-female divorce legislation shifts the bargaining power within married couple households, as does the speed with which family courts process divorce cases. Both pro-female divorce legislation and quick turn-around times for processing a divorce lead to an increase in school enrollment for children of married couples.
description: Replaced with revised version of paper 07/31/09.
MIRZO ULUG'BEKNING IJTIMOIY ISLOHOTLARI, ZAMONAVIY JAMIYAT UCHUN AHAMIYATI (IJTIMOIY-FALSAFIY TAHLIL).
Creators: name: Hamdamov, Islom
Publisher: name: Zenodo
Year: 2025

description: Mirzo Ulug‘bek adolatli hukmdor, ilm-fan homiysi va ijtimoiy islohotchi sifatida tarixda muhim iz qoldirgan. Uning hukmronlik davrida olib borgan islohotlari, jamiyatning barcha jabhalariga, jumladan, ilm-fan, me’morchilik, shaharsozlik, obodonchilik ishlariga katta ta’sir ko‘rsatib, mamlakatda barqarorlik o‘rnatilib, aholining turmush tarzi yaxshilandi. Jamiyatda, adolat, insonparvarlik, ezgulik g‘oyalari rivojlanib, xalqning ma’naviy tafakkuri yuksaldi. Uning o‘zi ham serqirra olim sifatida astronomiya, matematika, handasa, adabiyot, musiqa, tarix kabi fan sohalarining rivojiga bevosita o‘z hissasini qo‘shgan o‘rta asrlarning atoqli olimi, mutafakkiri bo‘lgan. Mirzo Ulug‘bek shaxsi va uning ilmiy-ma’naviy merosi bugungi globallashuv davrida ham aktualligini saqlab qolgan.
Roundness properties of groups
Creators: name: Lafont, J. -F.
name: Prassidis, S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Metric Geometry (math.MG)
subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: Roundness of metric spaces was introduced by Per Enflo as a tool to study uniform structures of linear topological spaces. The present paper investigates geometric and topological properties detected by the roundness of general metric spaces. In particular, we show that geodesic spaces of roundness 2 are contractible, and that a compact Riemannian manifold with roundness $>1$ must be simply connected. We then focus our investigation on Cayley graphs of finitely generated groups. One of our main results is that every Cayley graph of a free abelian group on $\geq 2$ generators has roundness $=1$. We show that if a group has no Cayley graph of roundness $=1$, then it must be a torsion group with every element of order $2,3,5$, or 7.
description: 22 pages, 2 figures
The spatially homogeneous Boltzmann equation for massless particles in an FLRW background
Creators: name: Lee, Ho
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We study the spatially homogeneous relativistic Boltzmann equation for massless particles in an FLRW background with scattering kernels in a certain range of soft and hard potentials. We obtain the future global existence of small solutions in a weighted $L^1\cap L^\infty$ space.
Mihajlovic-Leutner_et.Al_Supplementary_Tables_and_Figures.pdfHannah Röver
Creators: name: Mihajlovic, Jovana
name: Leutner, Michael
name: Hausmann, Bela
name: Kohl, Gudrun
name: Schwarz, Jasmin
name: Röver, Hannah
name: Stimakovits, Nina
name: Wolf, Peter
name: Maruszczak, Katharina
name: Bastian, Magdalena
name: Kautzky-Willer, Alexandra
name: Berry, David
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Medicine
subject: Physiology

description: Supplementary Figures and TablesASV data set
Is the core of M87 the source of its TeV emission? Implications for unified schemes
Creators: name: Georganopoulos, Markos
name: Perlman, Eric S.
name: Kazanas, Demosthenes
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: M87 has been recently shown to be a TeV source which is likely to be variable. Based on this, and on contemporaneous optical and X-ray monitoring, we argue that the source of the TeV emission is the core of M87 and not one of two jet knots (HST-1 and A) with X-ray brightness comparable to that of the core. We model the TeV emission in the core as inverse Compton (IC) emission from the base of the jet. Homogeneous models fail to reproduce the spectral energy distribution (SED) and, in particular, the TeV flux. They also fail to comply with the unified scheme of BL Lacertae (BL) objects and FR I radio galaxies. A jet that decelerates from a Lorentz factor Gamma ~ 20 down to Gamma \~ 5 over a length of ~ 0.1 pc reproduces the observed SED of the M87 core, and, when aligned to the line of sight, produces a SED similar to those of TeV BLs. The TeV flux in the decelerating jet model is successfully reproduced as upstream Compton (UC) scattering, a recently identified emission mechanism, in which energetic electrons of the upstream faster flow upscatter the low energy photons produced in the slower downstream part of the flow.
description: accepted to ApJ Letters
Supporting Cellulosic Ethanol Biomass Production and its Impact on Land Use Conversion
Creators: name: Wu, Feng
name: Guan, Zhengfei
name: Wu, Feng
name: Guan, Zhengfei
Publisher: name: Unknown
Year: 2009
Subjects: subject: Environmental Economics and Policy
subject: Cellulosic Ethanol
subject: Biomass
subject: Land Use
subject: the CRP
subject: Forestland

description: One of the problems facing the cellulosic ethanol industry is the cellulose material supply. The U.S. forestlands have considerable potential to become one of the main sources of biomass to meet the 2022 renewable fuel target. Focusing on the land exiting the Conservation Reserve Program (CRP), the article finds that few landowners are willing to convert their land to forestland after the CRP contract is expired. Our econometric estimates show the choice decision is responsive to net returns of land use alternatives, especially cropland. Two policy initiatives are suggested to provide direct incentives for land use change. The nested logit estimates are used to simulate landowners‘ responses to policy mechanism. The results show that subsidies can substantially increase forestland, although a spillover effect exists.
Saltella sphondylii
Creators: name: Schlüsslmayr, Gerhard
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Sepsidae
Saltella
Saltella sphondylii

description: Saltella sphondylii (SCHRANK, 1803)
Bgld, Illmitz, Hölle, 11.6.17.
Neu für Burgenland.
description: Published as part of Schlüsslmayr, Gerhard, 2018, Erstnachweise von Fliegen (Diptera) für Österreich und einige Bundesländer, pp. 765-800 in Linzer biologische Beiträge 50 (1) on page 776, DOI: 10.5281/zenodo.4004374
The Effect of Climate Change over Agricultural Factor Productivity: Some Econometric Considerations
Creators: name: McCarl, Bruce A.
name: Villavicencio, Xavier
name: Wu, Ximing
name: McCarl, Bruce A.
name: Villavicencio, Xavier
name: Wu, Ximing
Publisher: name: Unknown
Year: 2009
Subjects: subject: Environmental Economics and Policy
subject: Research Methods/ Statistical Methods
subject: Resource /Energy Economics and Policy
subject: Climate Change
subject: Factor Productivity
subject: Returns to Research
subject: Panel Data

description: This paper examines the role that climate change might be playing in the declining returns to agricultural research. For this purpose, we estimate a cross-section time-series model of agricultural total factor productivity for the U.S. states over the period 1970–1999, with the inclusion of climatic variables, and controlling for non stationarity of the data. Our findings suggest that after controlling for climatic variables and non stationarity, the effect of Public Agricultural Research Capital over Total Factor Productivity is reduced.
Parallel momentum distribution of the $^{28}$Si fragments from $^{29}$P
Creators: name: Wei, Y. B.
name: Ma, Y. G.
name: Cai, X. Z.
name: Zhong, C.
name: Chen, J. G.
name: Zhang, H. Y.
name: Fang, D. Q.
name: Wang, K.
name: Ma, G. L.
name: Guo, W.
name: Tian, W. D.
name: Shen, W. Q.
name: Zhan, W. L.
name: Xiao, G. Q.
name: Xu, H. S.
name: Sun, Z. Y.
name: Li, J. X.
name: Guo, Z. Y.
name: Wang, M.
name: Chen, Z. Q.
name: Hu, Z. G.
name: Chen, L. X.
name: Li, C.
name: Mao, R. S.
name: Bai, J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Distribution of the parallel momentum of $^{28}$Si fragments from the breakup of 30.7 MeV/nucleon $^{29}$P has been measured on C targets. The distribution has the FWHM with the value of 110.5 $\pm$ 23.5 MeV/c which is consistent quantitatively with Galuber model calculation assuming by a valence proton in $^{29}$P. The density distribution is also predicted by Skyrme-Hartree-Fock calculation. Results show that there might exist the proton-skin structure in $^{29}$P.
description: 4 pages, 4 figures
Wildfire and mountain pine beetle boundary zones : spatial pattern, boundary creation ans successional consquences
Creators: name: McIntire, Eliot Jonathan Benet
Publisher: name: University of British Columbia
Year: 2009

description: Wildfire and mountain pine beetle (MPB) boundaries are ubiquitous in many forested landscapes, yet they have been rarely described in two-dimensions at the stand-level and their formation and effects on plant community dynamics are poorly understood. Using spatially constrained clustering, the width of seven wildfire and eleven MPB boundaries was determined to be variable and ranged from Om to 120m (means approximately 30 to 50m). Thus, natural disturbance boundaries varied along a continuum from hard to soft. Using multiple spatially explicit path hypotheses and AICC to weigh relative support for each, these boundaries were found to be generated by a combination of stand-level factors as well as unmeasured spatial factors. A key factor was the basal area of susceptible host (for mountain pine beetle) and the basal area of trees that are highly susceptible to fire mortality. The pattern of tree mortality across these boundaries showed little relationship to stand age, stand density, slope or aspect. The spatial trend of mortality across seven of eleven MPB boundaries was sufficiently accounted for by the abundance of susceptible host, indicating that, at these sites, the MPB outbreaks were likely host limited rather than dispersal limited. Using multiple spatially explicit path hypotheses, natural regeneration patterns were found to be primarily driven by a light surrogate across the boundaries. Seed bed and disturbance severity were minor factors affecting the natural regeneration patterns. Seed source and vegetation competition had very little influence on the natural regeneration patterns. Successional trajectories in the boundary zones, as measured by overstory tree abundance and mortality as well as advanced regeneration growth release and natural regeneration patterns, were found to be different than in either the disturbance cores or the intact forest immediately adjacent to the boundary zones. These differences demonstrate that natural disturbances create spatial variation in the boundaries that translates into diverse successional sequences. Forests that have simplified edges, such as the majority of those in a harvested landscape, may have reduced spatial and temporal heterogeneity compared to those with produced by natural disturbance, such as fires and MPB.
Exploring the Gillis model: a discrete approach to diffusion in logarithmic potentials
Creators: name: Onofri, Manuele
name: Pozzoli, Gaia
name: Radice, Mattia
name: Artuso, Roberto
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Gillis model, introduced more than 60 years ago, is a non-homogeneous random walk with a position dependent drift. Though parsimoniously cited both in the physical and mathematical literature, it provides one of the very few examples of a stochastic system allowing for a number of exact result, although lacking translational invariance. We present old and novel results for such model, which moreover we show represents a discrete version of a diffusive particle in the presence of a logarithmic potential.
description: 30 pages, 8 figures
Helis Academy course FAIR data stewardship 2021, Day 1, Publisher requirements
Creators: name: Willighagen, Egon
Publisher: name: Zenodo
Year: 2021
Subjects: Helis Academy
FAIR
Data stewardship
Publisher requirements
Training

description: This presentation is part of the 3rd edition of the Helis Academy FAIR data stewardship (for life sciences) course
 Day 1, March 17, 2021 https://www.aanmelder.nl/fair-data-stewardship-2021
 https://helisacademy.com/en/data-analysis-stewardship Topic: publisher requirements
Robust Deep Signed Graph Clustering via Weak Balance Theory
Creators: name: Zhao, Peiyao
name: Li, Xin
name: Zhang, Zeyu
name: Wang, Mingzhong
name: Zhu, Xueying
name: Liao, Lejian
Publisher: name: arXiv
Year: 2025
Subjects: subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: Signed graph clustering is a critical technique for discovering community structures in graphs that exhibit both positive and negative relationships. We have identified two significant challenges in this domain: i) existing signed spectral methods are highly vulnerable to noise, which is prevalent in real-world scenarios; ii) the guiding principle ``an enemy of my enemy is my friend'', rooted in \textit{Social Balance Theory}, often narrows or disrupts cluster boundaries in mainstream signed graph neural networks. Addressing these challenges, we propose the \underline{D}eep \underline{S}igned \underline{G}raph \underline{C}lustering framework (DSGC), which leverages \textit{Weak Balance Theory} to enhance preprocessing and encoding for robust representation learning. First, DSGC introduces Violation Sign-Refine to denoise the signed network by correcting noisy edges with high-order neighbor information. Subsequently, Density-based Augmentation enhances semantic structures by adding positive edges within clusters and negative edges across clusters, following \textit{Weak Balance} principles. The framework then utilizes \textit{Weak Balance} principles to develop clustering-oriented signed neural networks to broaden cluster boundaries by emphasizing distinctions between negatively linked nodes. Finally, DSGC optimizes clustering assignments by minimizing a regularized clustering loss. Comprehensive experiments on synthetic and real-world datasets demonstrate DSGC consistently outperforms all baselines, establishing a new benchmark in signed graph clustering.
description: accepted by WWW25 conference
The Volatility Spillover Effects and Optimal Hedging Strategy in the Corn Market
Creators: name: Wu, Feng
name: Guan, Zhengfei
name: Wu, Feng
name: Guan, Zhengfei
Publisher: name: Unknown
Year: 2009
Subjects: subject: Risk and Uncertainty
subject: Volatility Spillover
subject: GARCH
subject: Optimal Hedge Ratio
subject: Energy Price
subject: Corn Price

description: This article examines the volatility spillovers from energy market to corn market. Using a volatility spillover model from the finance literature, we found significant spillovers from energy market to corn cash and futures markets, and the spillover effects are time-varying. The business cycle proxied by crude oil prices is shown to affect the magnitude of spillover effects over time. Based on the strong informational linkage between energy market and corn market, a cross hedge strategy is proposed and its performance studied. The simulation outcomes show that compared to alternative strategies of no hedge, constant hedge, and GARCH hedge, the cross hedge does not yield superior risk-reduction performance.
Evaporation and Condensation of HI clouds in thermally bistable interstellar media: semi-analytic description of isobaric dynamics of curved interfaces
Creators: name: Nagashima, Masahiro
name: Koyama, Hiroshi
name: Inutsuka, Shu-ichiro
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We analyze the evaporation and condensation of spherical and cylindrical HI clouds of the cold neutral medium surrounded by the warm neutral medium. Because the interstellar medium including those two phases is well described as a thermally bistable fluid, it is useful to apply pattern formation theories to the dynamics of the interface between the two phases. Assuming isobaric evolution of fluids and a simple cubic form of the heat-loss function, we show the curvature effects of the interface. We find that approximate solutions for spherical clouds are in good agreement with numerically obtained solutions. We extend our analysis to general curved fronts taking into account the curvature effects explicitly. We find that the curvature effects always stabilise curved interfaces under assumptions such as isobaric evolution we adopt in this Letter.
description: 5 pages, 4 figures, to appear in MNRAS Letters
Excitonic effect on optical response in one-dimensional two-band Hubbard model
Creators: name: Matsueda, H.
name: Tohyama, T.
name: Maekawa, S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Motivated by the gigantic nonlinear optical response in the halogen-bridged Ni-compounds, the underlying electronic states of the compounds are examined in the one-dimensional two-band Hubbard model, by studying the current-current correlation function and the charge density in the ground state. The dynamical density matrix renormalization group method is employed. We find that the low-energy peak of the correlation function consists of a single Lorentzian component for a parameter range appropriate to the compounds. This is due to an excitonic state induced by the intersite Coulomb repulsion between holes on the metal and halogen ions. This is consistent with the optical absorption spectra of the compounds. We suggest that the localization of holes on the metal ions in the ground state brings about the formation of the excitonic state.
description: 4 pages, 4 figures. submitted to Phys. Rev. B
Additional file 1 of TILT: Time-Lapse Imaging Trial—a pragmatic, multi-centre, three-arm randomised controlled trial to assess the clinical effectiveness and safety of time-lapse imaging in in vitro fertilisation treatment
Creators: name: Bhide, Priya
name: Arasaratnam Srikantharajah
name: Lanz, Doris
name: Dodds, Julie
name: Collins, Bonnie
name: Zamora, Javier
name: Chan, David
name: Thangaratinam, Shakila
name: Khan, Khalid S.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Cancer

description: Additional file 1. CONSORT diagram.
Reproductive ecology and population viability of Brewer’s Sparrows at the northern edge of the breeding range
Creators: name: Mahony, Nancy Anne
Publisher: name: University of British Columbia
Year: 2009

description: I examined the population dynamics of the provincially red-listed Brewer's Sparrow (Spizella breweri breweri) of British Columbia. This declining grassland bird reaches the northwestern limit of its breeding range in the province. My objectives were: 1) to explore spatial and temporal dynamics in fecundity and survival, 2) to model population viability based on these rates, 3) to examine the relative influences of vital rates on the population trend, and 4) to explore the relationship between the selection of nest site habitat characteristics and nest success. I found that seasonal fecundity was highest when the nest predation rate was low, the number of clutches/female was high and when breeding began later in the season. High seasonal fecundity alternated between the sites. The best site in 1998 became the least productive in 1999 and vice-versa, and a third site was most productive in 2000. The over-riding factor driving spatial and temporal variation in productivity was shifting rates of nest predation. However, elevation-related storm effects when breeding began early, and variation in the number of clutches laid, were partly responsible for this variation. Adult female survival varied between years, from a high of 66% in 1997-1998, an El Nino year, to a low of 26% from 1998-1999, a La Nina year. Survival did not vary between sites. A population viability model based on these demographic rates predicted that the population will decline to extinction within 100 years without immigration. For a bestcase scenario where mean adult survival was high and years of low survival occurred every 10 years, population growth rate (k) = 0.93. For a worst-case scenario where mean adult survival was low and years of low survival occur at random, X=0JS. Sensitivity analysis showed that the population growth rate was most sensitive to adult survival. Brewer's Sparrows selected nesting habitat that concealed nests. However, habitat variables related to concealment did not differ strongly between successful and depredated nests. Selected nest sites may not be the most successful because predation risk varies at larger spatial scales, and because the several generalist predators with differing search strategies cover all the possible safe havens.
Directional Spatial Dependence and Its Implications for Modeling Systemic Yield Risk
Creators: name: Zhu, Ying
name: Ghosh, Sujit K.
name: Goodwin, Barry K.
name: Zhu, Ying
name: Ghosh, Sujit K.
name: Goodwin, Barry K.
Publisher: name: Unknown
Year: 2009
Subjects: subject: Risk and Uncertainty
subject: Spatial Autoregressive Model
subject: Spatial Dependence

description: The objective of this study is to evaluate and model the spatial dependence of systemic yield risk. Various spatial autoregressive models are explored to account for county level dependence of crop yields. The results show that the time trend parameters of yields are correlated across spaces and the spatial correlations are changing with time. In addition, the spatial correlation of neighborhood in west/east direction is stronger than that of north/south direction. The information of the spatial dependence of yield risk will help the construction of better risk management programs for protecting producers from systemic yield risks.
Low temperature structural phase transition and incommensurate lattice modulation in the spin gap compound BaCuSi2O6
Creators: name: Samulon, E. C.
name: Islam, Z.
name: Sebastian, S. E.
name: Brooks, P. B.
name: McCourt, M. K.
name: Ilavsky, J.
name: Fisher, I. R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Results of high resolution x-ray diffraction experiments are presented for single crystals of the spin gap compound BaCuSi$_2$O$_6$ in the temperature range from 16 to 300 K. The data show clear evidence of a transition from the room temperature tetragonal phase into an incommensurately modulated orthorhombic structure below $\sim$100 K. This lattice modulation is characterized by a resolution limited wave vector {\bf q}$_{IC}$=(0,$\sim$0.13,0) and its 2$^{nd}$ and 3$^{rd}$ harmonics. The phase transition is first order and exhibits considerable hysteresis. This observation implies that the spin Hamiltonian representing the system is more complex than originally thought.
description: 4 pages, 4 figures
Helis Academy course FAIR data stewardship 2021, Day 1, Funder requirements
Creators: name: Bloemers, Margreet
Publisher: name: Zenodo
Year: 2021
Subjects: Helis Academy
FAIR
Data stewardship
Funder requirements
Training

description: This presentation is part of the 3rd edition of the Helis Academy FAIR data stewardship (for life sciences) course
 Day 1, March 17, 2021 https://www.aanmelder.nl/fair-data-stewardship-2021
 https://helisacademy.com/en/data-analysis-stewardship Topic: funder requirements
Quantitative study of molecular N_2 trapped in disordered GaN:O films
Creators: name: Ruck, B. J.
name: Koo, A.
name: Lanke, U. D.
name: Budde, F.
name: Granville, S.
name: Trodahl, H. J.
name: Bittar, A.
name: Metson, J. B.
name: Kennedy, V. J.
name: Markwitz, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The structure of disordered GaN:O films grown by ion-assisted deposition is investigated using x-ray absorption near-edge spectroscopy and Raman spectroscopy. It is found that between 4 and 21 % of the nitrogen in the films is in the form of molecular N_2 that interacts only weakly with the surrounding matrix. The anion to cation ratio in the GaN:O host remains close to unity, and there is a close correlation between the N_2 fraction, the level of oxygen impurities, and the absence of short-range order in the GaN:O matrix.
description: 5 pages, 3 figures
Sepsis cynipsea
Creators: name: Schlüsslmayr, Gerhard
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Sepsidae
Sepsis
Sepsis cynipsea

description: Sepsis cynipsea (LINNAEUS, 1758)
Bgld, Donnerskirchen, Kirchberg, 25.4.17, 2 Ex.
Neu für Burgenland.
description: Published as part of Schlüsslmayr, Gerhard, 2018, Erstnachweise von Fliegen (Diptera) für Österreich und einige Bundesländer, pp. 765-800 in Linzer biologische Beiträge 50 (1) on page 776, DOI: 10.5281/zenodo.4004374
Torsion-induced gravitational $θ$ term and gravitoelectromagnetism
Creators: name: Chatzistavrakidis, Athanasios
name: Karagiannis, Georgios
name: Schupp, Peter
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Motivated by the analogy between a weak field expansion of general relativity and Maxwell's laws of electrodynamics, we explore physical consequences of a parity violating $θ$ term in gravitoelectromagnetism. This is distinct from the common gravitational $θ$ term formed as a square of the Riemann tensor. Instead it appears as a product of the gravitoelectric and gravitomagnetic fields in the Lagrangian, similar to the Maxwellian $θ$ term. We show that this sector can arise from a quadratic torsion term in nonlinear gravity. In analogy to the physics of topological insulators, the torsion-induced $θ$ parameter can lead to excess mass density at the interface of regions where $θ$ varies and consequently it generates a correction to Newton's law of gravity. We discuss also an analogue of the Witten effect for gravitational dyons.
description: 5 pages, two-column format, v2: references added; minor corrections; revised journal version
Additional file 1 of Comparative RNA-Seq transcriptome analyses reveal dynamic time-dependent effects of 56Fe, 16O, and 28Si irradiation on the induction of murine hepatocellular carcinoma
Creators: name: Nia, Anna M.
name: Khanipov, Kamil
name: Barnette, Brooke L.
name: Ullrich, Robert L.
name: Golovko, George
name: Emmett, Mark R.
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 1.
Instability Analysis of Massive Static Phantom Wormholes via the Spectral Method
Creators: name: Batic, Davide
name: Dutykh, Denys
Publisher: name: arXiv
Year: 2025
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Using the spectral method, we investigate the scalar and axial quasinormal modes (QNMs) of massive static phantom wormholes. Our results reveal the existence of purely imaginary QNMs that were not identified in previous studies, suggesting potential (in)stabilities as the ratio of the Schwarzschild radius to the wormhole throat varies within a specific range. For scalar perturbations, instabilities arise when this ratio exceeds $1.0$, with the threshold value of $1.0$ itself included. In the case of axial perturbations, the onset of instability occurs at smaller ratios, reflecting the impact of gravitational waves on the wormhole's stability. The findings suggest that the wormhole remains stable when the throat size significantly exceeds the Schwarzschild radius. Our results align with existing literature but offer new insights into the stability conditions of phantom wormholes.
description: 11 pages, 6 tables
Calculating potentials of mean force and diffusion coefficients from nonequilibirum processes without Jarzynski's equality
Creators: name: Kosztin, Ioan
name: Barz, Bogdan
name: Janosi, Lorant
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: In general, the direct application of the Jarzynski equality (JE) to reconstruct potentials of mean force (PMFs) from a small number of nonequilibrium unidirectional steered molecular dynamics (SMD) paths is hindered by the lack of sampling of extremely rare paths with negative dissipative work. Such trajectories, that transiently violate the second law, are crucial for the validity of JE. As a solution to this daunting problem, we propose a simple and efficient method, referred to as the FR method, for calculating simultaneously both the PMF U(z) and the corresponding diffusion coefficient D(z) along a reaction coordinate z for a classical many particle system by employing a small number of fast SMD pullings in both forward (F) and time reverse (R) directions, without invoking JE. By employing Crook's transient fluctuation theorem (that is more general than JE) and the stiff spring approximation, we show that: (i) the mean dissipative work W_d in the F and R pullings are equal, (ii) both U(z) and W_d can be expressed in terms of the easily calculable mean work of the F and R processes, and (iii) D(z) can be expressed in terms of the slope of W_d. To test its viability, the FR method is applied to determine U(z) and D(z) of single-file water molecules in single-walled carbon nanotubes (SWNTs). The obtained U(z) is found to be in very good agreement with the results from other PMF calculation methods, e.g., umbrella sampling. Finally, U(z) and D(z) are used as input in a stochastic model, based on the Fokker-Planck equation, for describing water transport through SWNTs on a mesoscopic time scale that in general is inaccessible to MD simulations.
description: ReVTeX4, 13 pages, 6 EPS figures, Submitted to Journal of Chemical Physics
Polarization Observables in $γN\to K\bar{K}N$
Creators: name: Roberts, W.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We explore some of the rich structure of the polarization observables recently developed for processes like $γN\toππN$ and $γN\to K \bar{K} N$ in the framework of a specific model for the latter process. Emphasis is placed on observables that may be accesible at existing facilities in the near future. The sensitivity of the observables to the details of the model indicate that they will be a very useful tool in differentiating between different models for reactions like these. In the framework of a model for $γN\to K \bar{K} N$, we examine the sensitivity of the observables to coupling constants of the $ϕ$, to the properties of the $Λ(1405)$, and to the existence of the $Θ^+$.
description: 21 pages, latex, 17 figures, 1 style file included
RApid Temporal Survey - RATS I: Overview and first results
Creators: name: Ramsay, Gavin
name: Hakala, Pasi
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the aim and first results of the RApid Temporal Survey (RATS) made using the Wide Field Camera on the Isaac Newton Telescope. Our initial survey covers 3 square degrees, reaches a depth of V~22.5 and is sensitive to variations on timescales as short as 2 minutes: this is a new parameter space. Each field was observed for over 2 hours in white light, with 12 fields being observed in total. Our initial analysis finds 46 targets which show significant variations. Around half of these systems show quasi-sinusoidal variations: we believe they are contact or short period binaries. We find 4 systems which show variations on a timescale less than 1 hour. The shortest period system has a period of 374 sec. We find two systems which show a total eclipse. Further photometric and spectroscopic observations are required to fully identify the nature of these systems. We outline our future plans and objectives.
description: Accepted MNRAS, 9 pages
Edge modes of gravity -- I: Corner potentials and charges
Creators: name: Freidel, Laurent
name: Geiller, Marc
name: Pranzetti, Daniele
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This is the first paper in a series devoted to understanding the classical and quantum nature of edge modes and symmetries in gravitational systems. The goal of this analysis is to: i) achieve a clear understanding of how different formulations of gravity provide non-trivial representations of different sectors of the corner symmetry algebra, and ii) set the foundations of a new proposal for states of quantum geometry as representation states of this corner symmetry algebra. In this first paper we explain how different formulations of gravity, in both metric and tetrad variables, share the same bulk symplectic structure but differ at the corner, and in turn lead to inequivalent representations of the corner symmetry algebra. This provides an organizing criterion for formulations of gravity depending on how big the physical symmetry group that is non-trivially represented at the corner is. This principle can be used as a "treasure map" revealing new clues and routes in the quest for quantum gravity. Building up on these results, we perform a detailed analysis of the corner symplectic potential and symmetries of Einstein-Cartan-Holst gravity in [1], use this to provide a new look at the simplicity constraints in [2], and tackle the quantization in [3].
description: 53 pages, 2 figures. v3: Clarification about the uniqueness of the corner symplectic potential in Section 2.1, 2.6 and Appendix A and its link with boundary conditions
New insights into the corrosion of orthopedic Ti-6Al-4V under cathodic polarization
Creators: name: Sotniczuk, Agata
Publisher: name: Zenodo
Year: 2024

description: Attached file contains Author Accepted Manuscript (AAM3) submitted to Corrosion Science. 

Corresponding Authors: 

1) Agata Sotniczuk ORCID: 0000-0002-3468-0468

2) Kevin Ogle ORCID: 0000-0002-1453-7082
Modification of quantum many-body relaxation by perturbations exhibiting a banded matrix structure
Creators: name: Dabelow, Lennart
name: Vorndamme, Patrick
name: Reimann, Peter
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate how the observable relaxation behavior of an isolated quantum many-body system is modified in response to weak-to-moderate perturbations within a nonperturbative typicality framework. A key role is played by the so-called perturbation profile, which characterizes the dependence of the perturbation matrix elements in the eigenbasis of the unperturbed Hamiltonian on the difference of the corresponding energy eigenvalues. In particular, a banded matrix structure is quantitatively captured by a perturbation profile which approaches zero for large energy differences. The temporal modification of the relaxation is linked to the perturbation profile via a nonlinear integral equation, which admits approximate analytical solutions for sufficiently weak and strong perturbations, and for which we work out a numerical solution scheme in the general case. As an example, we consider a spin lattice model with a pronounced banded matrix structure, and we find very good agreement of the numerics with our analytical predictions without any free fit parameter.
description: 13 pages, 4 figures
Taste and Visual Influences on Hispanic Consumers' Preferences and Willingness-to-Pay for Pasture-Fed Beef
Creators: name: Luo, Jie
name: Mainville, Denise Y.
name: You, Wen
name: Nayga, Rodolfo M.
name: Luo, Jie
name: Mainville, Denise Y.
name: You, Wen
name: Nayga, Rodolfo M.
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agribusiness
subject: Consumer/Household Economics
subject: Demand and Price Analysis
subject: Food Consumption/Nutrition/Food Safety
subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Pasture-Fed Beef
subject: Experimental Economics
subject: Multiple Price Lists
subject: Preference
subject: Willingness-to-pay

description: Experimental Economics methods are used to determine Hispanic consumers’ sensory acceptance of pasture-fed beef and evaluate visual and taste influences on their overall preferences and willingness-to-pay (WTP). Two hundred and thirty-one Hispanic consumers in four experimental sites in Virginia participated in a laboratory experimental procedure where they visually examined and tasted pasture-fed and conventionally produced grain-fed beef, and then participated in a non-hypothetical Multiple Price Lists (MPL) experiment to determine their WTP. Hispanic consumers perceived significant differences between pasture-fed and grain-fed beef’s appearance and taste. Visual and taste acceptances are closely correlated to and significantly influence overall preferences. More than fifty percent of Hispanic consumers prefer pasture-fed beef and the majority of them consistently are willing to pay a price premium. Approximately, half consumers who generally prefer pasture-fed beef consistently consider the appearance and taste of pasture-fed beef more favorable but another half of them indicated discrepant visual and taste acceptances. Nevertheless, this inconsistency doesn’t lead to a lower WTP for pasture-fed beef.
A note on an OACF-preserving operation based on Parker's Transformation
Creators: name: Wang, Geyang
name: Wang, Qi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Theory (cs.IT)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Binary sequences with low odd-periodic correlation magnitudes have found important applications in communication systems. It is well known that the nega-cyclic shift and negation preserve the odd-periodic autocorrelation function (OACF) values in general. In this paper, we define a new operation based on Parker's transformation, which also preserves the OACF values of binary sequences. This enables us to classify Parker's 16 cases into 8 ones, and may possibly further allow to classify all constructions based on Parker's transformation.
description: 9 pages
Do prices fall faster when Wal-Mart is around? The effect of competition and reputation on cost pass-through and price adjustment
Creators: name: Martens, M. Andrea
name: Martens, M. Andrea
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agribusiness
subject: Industrial Organization
subject: Wal-Mart
subject: cost pass-through
subject: competition

description: This study analyzes Wal-Mart’s pricing practices and its inﬂuence on competitors’ input cost transmission. Previous attempts to analyze Wal-Mart’s pricing strategy in the United States have been limited by the company’s refusal to provide scanner data to third party research ﬁrms such as AC Nielsen. This is the ﬁrst study to observe Wal-Mart’s prices over an extended period of time. Using weekly-store level price data between 2001 and 2006 that government oﬃcials collected in 12 Mexican cities, I ﬁnd that Wal-Mart adjusts its prices 1/3-3 times slower to wholesale price increases than other retailers and responds 5-7 times faster to wholesale price decreases than its competitors. This evidence is robust to the comparison of Wal-Mart to other hypermarkets that oﬀer “every day low prices” and to potential endogeneity of Wal-Mart’s location choices. All retailers respond asymmetrically to wholesale cost changes. However, retailers other than Wal-Mart respond twice as fast to wholesale price increases than to decreases, while Wal-Mart behaves in the opposite way. I ﬁnd no evidence that proximity to a Wal-Mart supercenter or the level of competition aﬀects the speed of price adjustment of retailers.