cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Quantum turbulence in Bose-Einstein condensates: present status and new challenges ahead
Creators: name: Madeira, L.
name: Cidrim, A.
name: Hemmerling, M.
name: Caracanhas, M. A.
name: Santos, F. E. A. dos
name: Bagnato, V. S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: The field of quantum turbulence is related to the manifestation of turbulence in quantum fluids, such as liquid helium and ultracold gases. The concept of turbulence in quantum systems was conceived more than 70 years ago by Onsager and Feynman, but the study of turbulent ultracold gases is very recent. Although it is a young field, it already provides new approaches to the problem of turbulence. We review the advances and present status, of both theory and experiments, concerning atomic Bose-Einstein condensates (BECs). We present the difficulties of characterizing turbulence in trapped BECs, if compared to classical turbulence or turbulence in liquid helium. We summarize the challenges ahead, mostly related to the understanding of fundamental properties of quantum turbulence, including what is being done to investigate them.
description: 18 pages, 5 figures
Developments in farm incomes between 2004–2011 in the Polish agriculture and their future prospects
Creators: name: Grochowska, Renata
name: Manko, Stanislaw
name: Grochowska, Renata
name: Manko, Stanislaw
Publisher: name: Unknown
Year: 2014
Subjects: subject: Consumer/Household Economics
subject: farm incomes
subject: EU enlargement

description: The paper investigates the trends in the Polish farm incomes between 2004-2011 and some potential changes in the 2015-2020 period. The analysis was prepared based on the Polish FADN database, focusing on field crops, dairy cows, pigs and mixed farms. Our study showed that the production costs increased much faster than value of production in most of the farms in 2004-2011, what resulted in decreasing net income getting from the market. The observed growth in income followed mainly from an increase in the amount of direct payments. The simulations for 2015-2020 indicated a continuation of this tendency in the Polish farms.
Profitability prediction model for dairy farms using the random forest method
Creators: name: Yli-Heikkilä, Maria
name: Tauriainen, Jukka
name: Yli-Heikkilä, Maria
name: Tauriainen, Jukka
Publisher: name: Unknown
Year: 2014
Subjects: subject: Farm Management
subject: Predictive modelling
subject: random forests
subject: learning algorithms
subject: dairy farms
subject: profitability

description: We applied an ensemble learning method known as random forests, which is widely used in supervised machine learning, to predict the profitability ratio of dairy farms based on financial and production related variables. The predictive model was implemented as a web service to enable farmers to calculate the profitability of their business. Hereby, farmers can better assess the sustainability of their business over time, or in comparison to other farms in the sector.
Impact of agro-biodiversity on farmers’ income probability distribution
Creators: name: Kobus, Pawel
name: Kobus, Pawel
Publisher: name: Unknown
Year: 2014
Subjects: subject: Consumer/Household Economics
subject: Environmental Economics and Policy
subject: agro-biodiversity
subject: crops diversification
subject: income risk
subject: quantile regression

description: The paper constitutes an attempt at modelling the farmers’ income distribution. The main objective of the paper was to assess the impact of crop diversity on famers income probability distribution on the basis of real life data(Polish FADN), and to evaluate the size of economic incentives needed in order to encourage farmers to diversify their crop structure. Multiple linear regression and quantile regression models were developed for variance and expected value of farmers’ income. It was revealed that the impact of crop diversity diminishes both variance and expected value of income. However the relation holds only for two of considered principal farming types.
New Measurements of Upsilon(1S) Decays to Charmonium Final States
Creators: name: Briere, R. A
name: Collaboration, CLEO
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Using substantially larger data samples collected by the CLEO III detector, we report on new measurements of the decays of Upsilon(1S) to charmonium final states, including J/Psi, psi(2S), and chi_cJ. The latter two are first observations of these decays. We measure the branching fractions as follows: B(Y(1S)--> J/Psi+X)=(6.4+-0.4+-0.6)x10^-4, B(Y(1S)--> psi(2S)+X)/B(Y(1S)--> J/Psi+X)=0.41+-0.11+-0.08, B(Y(1S)--> chi_c1+X)/B(Y(1S)--> J/Psi+X)=0.35+-0.08+-0.06, B(Y(1S)--> chi_c2+X)/B(Y(1S)--> J/Psi+X)=0.52+-0.12+-0.09, and B(Y(1S)--> chi_c0+X)/B(Y(1S)--> J/Psi+X)<7.4% at 90% confidence level. We also report on the momentum and angular spectra of J/Psi's in Upsilon(1S) decay. The results are compared to predictions of the color octet and color singlet models.
description: 27 pages postscript,also available through http://w4.lns.cornell.edu/public/CLNS/, submitted to PRD
Agro-holdings in Russia: Temporary phenomenon or a prevailing business form?
Creators: name: Voigt, Peter
name: Wolz, Axel
name: Voigt, Peter
name: Wolz, Axel
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: agro-holdings
subject: company trajectories
subject: Gross Value Added (GVA) growth performance
subject: quantile regression analysis
subject: Russia
subject: farm level

description: Since the 1990s, in Russia, numerous large scale agro-holdings emerged, which link various farms, entities of the upstream and downstream sectors, and even totally unrelated industries. As all these affiliates are legally registered as independent units, there is only scant information about the holdings' overall performance. Based on a unique panel data set from Moscow and Belgorod regions, we investigated the growth trajectories of farms belonging to agro-holdings vis-à-vis independent farms by applying a quantile regression approach. Evidence points to little differences among general performance indicators of both types. Any advantages of affiliated farms appear to be due to extramural factors; i.e. it is all about how to link individual production units, thus benefiting from strong positioning in local and regional markets and making the most of the lobbied ties to the relevant politics. In sum, agro-holdings are assumed to remain as a model for organizing agricultural production.
1/f Scaling in Heart Rate Requires Antagonistic Autonomic Control
Creators: name: Struzik, Zbigniew R.
name: Hayano, Junichiro
name: Sakata, Seiichiro
name: Kwak, Shin
name: Yamamoto, Yoshiharu
Publisher: name: arXiv
Year: 2004
Subjects: subject: Other Quantitative Biology (q-bio.OT)
subject: FOS: Biological sciences

description: We present the first systematic evidence for the origins of 1/f-type temporal scaling in human heart rate. The heart rate is regulated by the activity of two branches of the autonomic nervous system: the parasympathetic (PNS) and the sympathetic (SNS) nervous systems. We examine alterations in the scaling property when the balance between PNS and SNS activity is modified, and find that the relative PNS suppression by congestive heart failure results in a substantial increase in the Hurst exponent H towards random walk scaling $1/f^{2}$ and a similar breakdown is observed with relative SNS suppression by primary autonomic failure. These results suggest that 1/f scaling in heart rate requires the intricate balance between the antagonistic activity of PNS and SNS.
description: 4 pages, 3 figures, to appear in Phys. Rev. E (2004)
Attosecond electron-spin dynamics in Xe 4d photoionization
Creators: name: Zhong, Shiyang
name: Vinbladh, Jimmy
name: Busto, David
name: Squibb, Richard J.
name: Isinger, Marcus
name: Neoričić, Lana
name: Laurell, Hugo
name: Weissenbilder, Robin
name: Arnold, Cord L.
name: Feifel, Raimund
name: Dahlström, Jan Marcus
name: Wendin, Göran
name: Gisselbrecht, Mathieu
name: Lindroth, Eva
name: L'Huillier, Anne
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The photoionization of xenon atoms in the 70-100 eV range reveals several fascinating physical phenomena such as a giant resonance induced by the dynamic rearrangement of the electron cloud after photon absorption, an anomalous branching ratio between intermediate Xe$^+$ states separated by the spin-orbit interaction and multiple Auger decay processes. These phenomena have been studied in the past, using in particular synchrotron radiation, but without access to real-time dynamics. Here, we study the dynamics of Xe 4d photoionization on its natural time scale combining attosecond interferometry and coincidence spectroscopy. A time-frequency analysis of the involved transitions allows us to identify two interfering ionization mechanisms: the broad giant dipole resonance with a fast decay time less than 50 as and a narrow resonance at threshold induced by spin-flip transitions, with much longer decay times of several hundred as. Our results provide new insight into the complex electron-spin dynamics of photo-induced phenomena.
The X-ray Jet of 3C 120: Evidence for a Non-standard Synchrotron Spectrum
Creators: name: Harris, D. E.
name: Mossman, A. E.
name: Walker, R. C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on archival data from the Chandra X-ray Observatory for the radio jet of 3C120. We consider the emission process responsible for the X-rays from 4 knots using spectra constructed from radio, optical, and X-ray intensities. While a simple synchrotron model is adequate for three of the knots, the fourth ('k25'), which was previously detected by ROSAT and is now well resolved with Chandra, still represents a problem for the conventional emission processes. If, as we argue, the flat X-ray spectra from two parts of k25 are synchrotron emission, then it appears that either the emission comes from an electron distribution spectrally distinct from that responsible for the radio emission, or at the highest electron energies, there is a significant deviation from the power law describing the electron distribution at lower energies.
description: Accepted for publication in the Astrophysical Journal (tentatively scheduled for the ApJ 1 November 2004, v615 issue). 18 pages including 9 figures. Figs 1, 2, 3, 4, and 8 are jpegs to limit the size of the files. Figs 4 and 8 are in color
MPEC 2024-B04 : 2024 AQ4
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 AQ4

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Instability of G-rich DNA in Caenorhabditis elegans
Creators: name: Cheung, Iris
Publisher: name: University of British Columbia
Year: 2009

description: Mutations in genes that function in maintaining genome stability, such as those involved in DNA replication, DNA repair, or cell-cycle checkpoints, may lead to extensive genetic alterations, leading to the so-called "mutator phenotype". In Caenorhabditis elegans, the mutant strain dog-l(gkl0) displays such a phenotype. Molecular characterization of the strain revealed genome-wide deletions involving a very specific type of repeat, consisting of poly- G tracts paired with poly-C tracts ((G/C)n). Deletions have unique structural characteristics and only occurred in roughly half of the (G/C)n tracts examined. DOG-1 contains the seven signature motifs of a DExH-box helicase. Based on these observations, a model was proposed in which the putative helicase DOG-1 is required for unwinding secondary structures formed by G-rich DNA during lagging strand synthesis. In the absence of functional DOG-1 such secondary structures may lead to deletions via an unknown mechanism. Because telomeric DNA is capable of forming secondary structure in vitro, dogl(gkl0) was examined for telomere defects. To measure telomere length in C. elegans with higher sensitivity and accuracy, a PCR-based technique, called STELA was adapted to C. elegans thereby enabling chromosome-specific telomere length measurement from as few as a single worm. Telomere length analysis using this technique revealed the presence of short telomeres that were clearly distinct from the bulk telomere length distributions in different wild-type strains. This suggests that processes other than end-replication losses and telomerase-mediated lengthening contribute to telomere length heterogeneity in C. elegans. An increased frequency of such short outlying telomeres was observed in the telomerase mutant trt-1, indicating that besides replicative loss, telomerase is also required for preventing large scale loss of telomeric DNA. Analysis of telomere length in dog-l(gkl0) using STELA showed no significant shortening of average telomere length or increased frequency of short telomeres. Therefore, DOG-1 appeared to be required specifically for the maintenance of (G/C)n tracts within the genome.
Investigating determinants of agricultural income diversification: an exploratory case study in Tuscany
Creators: name: Boncinelli, Fabio
name: Bartolini, Fabio
name: Casini, Leonardo
name: Brunori, Gianluca
name: Boncinelli, Fabio
name: Bartolini, Fabio
name: Casini, Leonardo
name: Brunori, Gianluca
Publisher: name: Unknown
Year: 2014
Subjects: subject: Consumer/Household Economics
subject: Diversification
subject: Heckman Model
subject: Sample Selection
subject: Tuscany

description: This paper investigates on-farm income diversification determinants, using data from the Italian 2010 census. The determinants are investigated by simulating farmers’ behaviors as a two-step process through the application of the Heckman sample selection model. Model results are quite consistent with previous literature findings and confirm the relevance of risk exposure reduction as on-farm diversification strategy determinants. Results stress also that, besides farm characteristics and structures, spatial location and distances play a prominentrole in explaining the diversification process. Our results seem contrary to the demand-driven effects of diversification but stress that diversification could be considered a broader process driven by territorial potentiality and quality.
Flat bands in magic-angle vibrating plates
Creators: name: Rosendo, María
name: Peñaranda, Fernando
name: Christensen, Johan
name: San-Jose, Pablo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Twisted bilayer graphene develop quasi-flat bands at specific "magic" interlayer rotation angles through an unconventional mechanism connected to carrier chirality. Quasi-flat bands are responsible for a wealth of exotic, correlated-electron phases in the system. In this work we propose a mechanical analogue of twisted bilayer graphene made of two vibrating plates, patterned with a honeycomb mesh of masses, and coupled across a continuum elastic medium. We show that flexural waves in the device exhibit vanishing group velocity and quasi-flat bands at magic angles, in close correspondence with electrons in graphene models. The strong similarities of spectral structure and spatial eigenmodes in the two systems demonstrate the chiral nature of the mechanical flat bands. We derive analytical expressions that quantitatively connect the mechanical and electronic models, which allow us to predict the parameters required for an experimental realization of our proposal.
description: 9 pages, 4 figures
The meson spectra beyond a $q\bar q$ description
Creators: name: Vijande, J.
name: Fernandez, F.
name: Valcarce, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Despite the apparent simplicity of meson spectroscopy there are some states which cannot be accommodated in the usual $q\bar q$ structure. Among them there are either exotic states as the X(1600), or the recently measured charmed states $D_{sJ}^*$ and some of the light scalar mesons. We present a description of the light scalar mesons in terms of $q\bar q$ and $qq\bar q\bar q$ components.
description: 3 pages. Talk presented at the 19th European Few-Body conference, Groningen, The Netherlands, August 23-27, 2004
Additional file 1 of Physical Activity Intervention for Loneliness (PAIL) in community-dwelling older adults: a randomised feasibility study
Creators: name: Shvedko, Anastasia V.
name: Thompson, Janice L.
name: Greig, Carolyn A.
name: Whittaker, Anna C.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1. CONSORT extension to pilot and feasibility trials checklist
Additional file 1 of Epidemiology of schizophrenia and its management over 8-years period using real-world data in Spain
Creators: name: A. Orrico-Sánchez
name: M. López-Lacort
name: C. Muñoz-Quiles
name: G. Sanfélix-Gimeno
name: J. Díez-Domingo
Publisher: name: figshare
Year: 2020
Subjects: subject: Pharmacology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. Including information about all active ingredients included in each antipsychotic family (LAI First-Generation, OA First-Generation, LAI Second-Generation and OA Second-Generation).
Cyber regulation in Vietnam
Creators: name: Nguyen, Ha Ngoc
Publisher: name: Monash University
Year: 2024
Subjects: classificationCode: 480405
subject: Law and society and socio-legal research
classificationCode: 449901
subject: Studies of Asian society

description: The thesis studies the ways in which cyberspace in Vietnam is regulated. Specifically, it asks different social groups with about their preferences regarding cyber regulation. Three types of data including interviews, social media content, and official documents were used to analyse the social groups and their preferences. The thesis found that the state group has and will continue to command and control the regulation of cyberspace in Vietnam. However, the state group has and will likely to incorporate the preferences of deregulation and coregulation preferred by two non-state groups.
POLLUX Cosmic Ecosystems Working Group: The cosmic evolution of matter from the large scales between and around galaxies to the formation of stars and planetary systems
Creators: name: Lebouteiller, Vianney
Publisher: name: Zenodo
Year: 2025

description: This presentation was given for the Pollux @ HWO 2025 workshop held in Meudon, France on Jan. 22-23, 2025. It provides an overview of the science cases for a potential high spectral resolution spectropolarimeter that could be installed on the focal plane of the Habitable Worlds Observatory.
Supply scale and demand for agricultural advisory services in Kosovo
Creators: name: Miftari, Iliriana
name: Waldhardt, Rainer
name: Bajrami, Egzon
name: Gjonbalaj, Muje
name: Miftari, Iliriana
name: Waldhardt, Rainer
name: Bajrami, Egzon
name: Gjonbalaj, Muje
Publisher: name: Unknown
Year: 2014
Subjects: subject: Teaching/Communication/Extension/Profession
subject: advisory services
subject: farmers
subject: agriculture
subject: Kosovo

description: The aim of the poster is to present the main findings of the research study on the supply scale and the demand of advisory services in the sector of agriculture in Kosovo. The study area covers ten municipalities and 120 farms coming from different sectors of agriculture. The data analyses show the supply scale of advisory services from 2007-2013; advisory sources, the importance of advisory services for farmers, and also identifies the methods and fields where these services should be focused in the future. Research findings show that almost half of the interviewed farmers did not receive advisory services and an interesting finding is that ten of the farmers did not her at all about these services. Farmers were drawing agricultural advices and services from different sources, where the highest percentage of offering advices for farmers was from private sector, specifically from different international organizations. The advisory services received from agriculture experts from public sector were significantly lower compared to the other sources. The derived results show that the advisory services were needed on all processes that accompany a farmer in agricultural production. In this regard the supply of advisory services in the future needs to be oriented mainly at pre-production phase, production, protection, processing, and marketing. Whereas, most favorable methods stressed by the farmers in receiving advisory services were oral advices, respectively experimental plots.
Additional file 2 of A digital decision support system (selfBACK) for improved self-management of low back pain: a pilot study with 6-week follow-up
Creators: name: Sandal, Louise Fleng
name: Øverås, Cecilie K.
name: Nordstoga, Anne Lovise
name: Wood, Karen
name: Bach, Kerstin
name: Hartvigsen, Jan
name: Søgaard, Karen
name: Mork, Paul Jarle
Publisher: name: figshare
Year: 2020
Subjects: subject: Neuroscience
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 2. Screening document.
Radiative Corrections to Neutrino Reactions off Proton and Deuteron
Creators: name: Kubota, T.
name: Fukugita, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Radiative corrections are calculated for antineutrino proton quasielastic scattering, neutrino deuteron scattering, and the asymmetry of polarised neutron beta decay from which $G_{A}/G_{V}$ is determined. A particular emphasis is given to the constant parts that are usually absorbed into the coupling constants, and thereby those that appear in the processes that concern us are unambiguously tied among each other.
description: Talk give at the 10th International Symposium on Particles, Strings and Cosmology (at Northeastern University, Boston, August 16-22, 2004)
Additional file 1 of A digital decision support system (selfBACK) for improved self-management of low back pain: a pilot study with 6-week follow-up
Creators: name: Sandal, Louise Fleng
name: Øverås, Cecilie K.
name: Nordstoga, Anne Lovise
name: Wood, Karen
name: Bach, Kerstin
name: Hartvigsen, Jan
name: Søgaard, Karen
name: Mork, Paul Jarle
Publisher: name: figshare
Year: 2020
Subjects: subject: Neuroscience
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 1. Supplementary Tables.
Helicity asymmetries in double pion photoproduction on the proton
Creators: name: Roca, L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Based on a prior model on double pion photoproduction on the proton, successfully tested in total cross sections and invariant mass distributions, we make a theoretical study of the angular dependence of helicity asymmetries from the interaction of circularly polarized photons with unpolarized protons. We show that this observable is sensitive to details of the internal mechanisms and, thus, represents a complementary test of the theoretical model.
description: 16 pages, 6 figures, version accepted for publication in Nuclear Physics A
Disproportionate joint cost allocation at individual-farm level using maximum entropy
Creators: name: Lips, Markus
name: Lips, Markus
Publisher: name: Unknown
Year: 2014
Subjects: subject: Productivity Analysis
subject: Research Methods/ Statistical Methods
subject: joint cost allocation
subject: maximum entropy

description: This paper addresses the allocation of joint cost among enterprises – also called ‘production branches’ or ‘activities’ – and presents an approach based on maximum entropy and standard costs from farm-management literature as allocation factors. The approach allows us to discard the widely applied assumption of a proportional joint cost allocation. Since it provides a disproportionate joint cost allocation, the distinctive feature of the approach is that it favours the adjustment of large standard costs rather than of small ones.
On the distribution of M-tuples of B-numbers
Creators: name: Nowak, W. G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11P05; 11N35

description: In the classical sense, the set B consists of all integers which can be written as a sum of two perfect squares. In other words, these are the values attained by norms of integral ideals over the Gaussian field Q(i). G.J. Rieger (1965) and T. Cochrane / R.E. Dressler (1987) established bounds for the number of pairs (n,n+h), resp., triples (n,n+1,n+2) of B-numbers up to a large real parameter x. The present article generalizes these investigations into two directions: The result obtained deals with arbitrary M-tuples of arithmetic progressions of positive integers, excluding the trivial case that one of them is a constant multiple of some other one. Furthermore, the estimate applies to the case of an arbitrary normal extension K of the rational field instead of Q(i).
Designing public-private crop insurance in the northern limits of agriculture
Creators: name: Liesivaara, Petri
name: Meuwissen, Miranda P.M.
name: Liesivaara, Petri
name: Meuwissen, Miranda P.M.
Publisher: name: Unknown
Year: 2014
Subjects: subject: Risk and Uncertainty
subject: government expenditures
subject: crop insurance
subject: stochastic simulation

description: Government financed crop damage compensation (CDC) scheme is covering crop losses in Finland. The scheme is about to be abolished. Crop insurance scheme based on public–private partnership will be in place in 2016. In this study, we analysed how government expenditure will change due to the policy shift. According to a stochastic simulation model, the government’s risk exposure will decrease and the mean expenditures for the government as well as the variability in expenditure between years are expected to be lower, when the policy is shifted. The results obtained support the government’s decision to terminate the CDC scheme.
The Impact of Personal Attitudes on Cereal Variety Adoption Decisions in Alberta
Creators: name: Cole, Jesse
name: Cole, Jesse
Publisher: name: Unknown
Year: 2007
Subjects: Crop Production/Industries

description: The goal of this study was to help guide development efforts of a current breeding program underway in Saskatoon, Saskatchewan, aimed at producing new cold tolerant cereal varieties. In order to maximize the impact of research dollars and efficiently meet the needs of producers in the realm of technology provision, it is helpful to understand the types of producers who might use the new varieties. A survey was used, in Alberta, Canada, to obtain data on producer attitudes affecting adoption of new technology, particularly in adopting a future cold tolerant cereal variety. The survey was structured with demographic, attitudinal and stated choice questions. A conditional logit regression model was used to estimates the probability of adoption based on the survey responses. Principal component analysis was used to limit the number of variables in the regression. Willingness to pay calculations are then made based on the selected logit model. Frost tolerance is found to be the most desired trait over a decrease in degree days for the sample population. Certain producer characteristics (attitudes towards risk, for example) were found to impact on the estimated willingness to pay for frost tolerance and decreased days to maturity.
title: Gravity with null boundaries
Creators: name: Freisinger, Dominik
Publisher: name: TU Wien
Year: 2019
Subjects: subject: gravity
subject: null boundaries

description: We study null boundary segments intersecting each other at non-smooth corners. As a result, a null analog to the common Gibbons-Hawking-York (GHY) counterterm [1,2] and corner counterterms, containing Lorentz angles between hypersurface normals, are presented. Considering that, we follow loosely the treatments in [35] and obtain a slightly more general result. As a prototype spacetime that exhibits null and timelike boundary segments connected via non-smooth corners, we investigate a Bañados-Teitelboim-Zanelli (BTZ) black hole (BH) [6, 7]. The BTZ solution does not preserve Dirichlet boundary conditions (bcs) and therefore needs holographic counterterms added to the action such that we get a well-defined action principle (I| EOM = 0). We show that on the asymptotic (timelike) boundary segment r it is not possible to construct a suitable counterterm solely out of covariant quantities and therefore propose a non-covariant counterterm that can be interpreted as a dilaton-like scalar field on the boundary. Furthermore we show that we cannot find any counterterms to the corner contributions in the action integral such that the variation vanishes. We propose to fix the boost gauge in a suitable manner such that corners do not contribute at all. The full action is then given by the standard Einstein-Hilbert (EH) action plus GHY-like counterterms on the null segments and a non-covariant term on the asymptotic boundary. For the ease of the calculations we work in 2 + 1 dimensions.
Corrections and Comments on the Multipole Moments of Axisymmetric Electrovacuum Spacetimes
Creators: name: Sotiriou, Thomas P.
name: Apostolatos, Theocharis A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Following the method of Hoenselaers and Perjés we present a new corrected and dimensionally consistent set of multipole gravitational and electromagnetic moments for stationary axisymmetric spacetimes. Furthermore, we use our results to compute the multipole moments, both gravitational and electromagnetic, of a Kerr-Newman black hole.
description: This is a revised and corrected version
Further Baire results on the distribution of subsequences
Creators: name: Goldstern, Martin
name: Schmeling, Jörg
name: Winkler, Reinhard
Publisher: name: arXiv
Year: 2004
Subjects: subject: Number Theory (math.NT)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 11K06 (Primary), 37A45 (Secondary)

description: This paper presents results about the distribution of subsequences which are typical in the sense of Baire. The first part is concerned with sequences of the type x_k = n_k*alpha, n_1 < n_2 < n_3 < ..., mod 1. Improving a result of Salat we show that, if the quotients q_k = n_{k+1}/n_k satisfy q_k > 1+ epsilon, then the set of alpha such that (x_k) is uniformly distributed is of first Baire category, i.e. for generic alpha we do not have uniform distribution. Under the stronger assumption lim q_k = infinity one even has maldistribution for generic alpha, the strongest possible contrast to uniform distribution. The second part reverses the point of view by considering appropriately defined Baire spaces S of subsequences. For a fixed well distributed sequence (x_n) we show that there is a set M of measures such that for generic (n_k) in S the set of limit measures of the subsequence (x_{n_k}) is exactly M.
description: 21 pages, LaTeX2e. Final version. (Somewhat expanded proofs and clarifications, more examples)
Synergies, cooperation and syndication in venture capital game, portfolio optimization with genetic algorithms and asset auctions: essays in finance
Creators: name: Radak, Vladislav
Publisher: name: Technische Universität Dortmund
Year: 2020
Subjects: subject: Venture capital game
subject: Portfolio optimization
subject: Genetic algorithms
subject: Asset auctions
subject: 330

description: This thesis looks at all scientific phenomenon of financial decision-making from both the empirical and theoretical side, with empirical trying to strengthen theoretical assumptions or even to expand it. In chapter 2, we propose a two-stage financing model with three players that consider the output elasticities of all parties using the Cobb-Douglas utility function. Theoretical findings in chapter 2 suggest that a higher complementary coefficient between players on both stages can lead to a higher level of effort from all three players, taking game dynamics away from the moral hazard problem and causing higher exit stage payoffs. Previous track record of the angel and VC and output elasticity of the entrepreneur, combined with the company’s shares offered the angel and VC, impact the three-player game dynamic, causing some players to reduce their efforts after specific funding rounds. Our empirical results show that VC syndication increases the average amount of funding offered to entrepreneurs as well as that syndicated ventures have a higher number of funding rounds, resulting in a higher number of possible entry-points provided by those start-ups. Our results in chapter 4 suggested that a two-point GA that minimized the risk for a given level of expected return slightly outperformed the results of the SPEA2. Compared with the previous industry standard for risk measure—Value-at-Risk, we show that both frontiers differed, especially at the low return side. The converted Value-at-Risk solutions were not evenly distributed along the efficient frontier and even inadequate for some ES values. In chapter 5, we use the game theory approach to examine the first-price package auction design for illiquid asset auctions. Our theoretical work suggests that every case that can be presented as a two or three asset game, as well as longer games that can be presented as two and three asset subgames, has a strong equilibrium if the bidders’ budgets and utilities for every asset are common knowledge.
Electromagnetic theory of Helicoidal Dichroism in reflection from magnetic structures
Creators: name: Fanciulli, Mauro
name: Bresteau, David
name: Vimal, Mekha
name: Luttmann, Martin
name: Sacchi, Maurizio
name: Ruchon, Thierry
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present the classical electromagnetic theory framework of reflection of a light beam carrying Orbital Angular Momentum (OAM) by an in-plane magnetic structure with generic symmetry. Depending on the magnetization symmetry, we find a change in the OAM content of the reflected beam due to magneto-optic interaction and an asymmetric far-field intensity profile. This leads to three types of Magnetic Helicoidal Dichroism (MHD), observed when switching the OAM of the incoming beam, the magnetization sign, or both. In cases of sufficient symmetries, we establish analytical formulas which link an experimentally accessible MHD signal up to $10\%$ to the Magneto-Optical Kerr Effect (MOKE) constants. Magnetic vortices are particularly enlightening and promising targets, for which we explore the implications of our theory in the joint publication XX XXX XXXXXX.
description: A joint manuscript was submitted at the same time
Gender, race, and nation in modern Japanese and Taiwanese literatures : a comparative study of women’s literary production
Creators: name: Chen, Mei-Yao
Publisher: name: University of British Columbia
Year: 2009

description: This dissertation examines and compares representations of female subjectivity in selected literary texts by women writers from modern Japan and Taiwan. Particular attention is paid to narrative constructions of gender, race, and nation as these configure subjectivity. The use of a comparative framework of analysis provides a more nuanced understanding both of the specific authors addressed and the gendered nature of modern literary production in these two countries that share such a complex colonial and postcolonial history. The dissertation begins by situating the literary works addressed in the socio-historical context from which they emerged. The analysis of the literary works incorporates critical concepts and insights by postcolonial theorists such as Gayatri Spivak, and Trinh T. Minh-Ha, as well as feminist and gender theorists such as Helene Cixous and Luce Irigaray. The five critically-acclaimed women writers under discussion are Kanai Mieko, Enchi Fumiko, and Oba Minako from Japan, and Li Ang, and Zhu Tianxin from Taiwan. In each chapter one writer from Japan is paired with one from Taiwan according to the thematic similarities of their works. Themes that I have chosen for comparison include the female body, feminine sexuality, man-slaughtering, women's language, and geographic/temporal displacement. These themes appear frequently and conspicuously in the fiction of the most important female writers of postwar Japan and Taiwan, and as such provide valuable points of entry for the critical exploration of identity issues of gender, race, and nation. Apart from similarities of theme, structure, and writing strategy, this comparative study also explores the differences between Japanese and Taiwanese women's writing in the modern period. As Taiwan's complicated colonial history differentiates its postcoloniality from that of Japan, national identity often emerges as a crucial issue in Taiwanese women's writing; this is less often the case in the work of Japanese women writers. My elucidation and discussion of these differences counters the Orientalist tendency to treat all non-Western countries as a homogenous block, on the erroneous assumption that there is one fundamental experience of coloniality that all colonized nations share. By examining the residual influences of colonialism in postcolonial Japan and Taiwan, this dissertation contributes to the critical exploration/interrogation of the features of both extra-Asian and intra-Asian colonialisms in general, and their effects on gendered literary production in particular.
Feedback from tissue mechanics self-organizes efficient outgrowth of plant organ
Creators: name: Khadka, Jason
name: Julien, Jean-Daniel
name: Alim, Karen
Publisher: name: arXiv
Year: 2020
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Tissues and Organs (q-bio.TO)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Plant organ outgrowth superficially appears like the continuous mechanical deformation of a sheet of cells. Yet, how precisely cells as individual mechanical entities can act to morph a tissue reliably and efficiently into three dimensions during outgrowth is still puzzling especially when cells are tightly connected as in plant tissue. In plants, the mechanics of cells within a tissue is particularly well defined as individual cell growth is essentially the mechanical yielding of cell-wall in response to internal turgor pressure. Cell wall stiffness is controlled by biological signalling and, hence, cell growth is observed to respond to mechanical stresses building up within a tissue. What is the role of the mechanical feedback during morphing of tissue in three dimensions? Here, we develop a three dimensional vertex model to investigate tissue mechanics at the onset of organ outgrowth at the tip of a plant shoot. We find that organ height is primarily governed by the ratio of growth rates of faster growing cells initiating the organ to slower growing cells surrounding them. Remarkably, the outgrowth rate is higher when cells growth responds to the tissue-wide mechanical stresses. Our quantitative analysis of simulation data shows that tissue mechanical feedback on cell growth can act via twofold mechanism. First, the feedback guides patterns of cellular growth. Second, the feedback modifies the stress patterns on the cells, consequently amplifying and propagating growth anisotropies. This mechanism may allow plants to grow organs efficiently out of the meristem by reorganizing the cellular growth rather than inflating growth rates.
description: 16 pages, 8 figures, SI appended
MPEC 2024-B05 : 2024 AR4
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 AR4

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
The Effect of Social Desirability Bias on Willingness-To-Pay for Organic Beef.
Creators: name: Cheek, Lindsey
name: Cheek, Lindsey
Publisher: name: Unknown
Year: 2007
Subjects: Consumer/Household Economics
Livestock Production/Industries

description: Researchers regularly conduct willingness-to-pay or valuation studies for product marketing or public policy purposes. However, a large volume of research suggests valuation tools such as conjoint analysis may be subject to social desirability bias, where subjects misrepresent their true preferences to create a favorable impression. The objective of this study is to measure the effects of social desirability bias on conjoint survey responses. Consumers were asked to rank organic ground beef relative to other ground beef products at various prices. A popular scale measuring individuals’ tendency to exhibit social desirability bias was also administered. Regression analysis found no correlation between individuals’ social desirability scale scores and their preferences for organic beef. Thus, in this study, social desirability bias does not appear to be a problem for valuation researchers.
Capturing teaching practices in language-responsive mathematics classrooms extending the TRU framework “teaching for robust understanding” to L-TRU
Creators: name: Prediger, Susanne
name: Neugebauer, Philipp
Publisher: name: Technische Universität Dortmund
Year: 2020
Subjects: subject: Language-responsive classrooms
subject: Teaching practices
subject: Quality
subject: Rating scheme
subject: Discursive demand
subject: Connecting registers
subject: 510

description: Supporting language in mathematics classrooms requires both curriculum material that follows language-responsive design principles and teaching practices that enact these principles with high instructional quality. This paper presents the analytic framework L-TRU, which was developed to assess language-responsive teaching practices quantitatively. The L-TRU framework draws upon Schoenfeld’s teaching for robust understanding (TRU) framework by adapting its five dimensions to language-responsive classrooms: Mathematical Richness, Cognitive Demand, Equitable Access, Agency, and Use of Student Contributions. It is extended by two further dimensions, namely, Discursive Demand and Connecting Registers. The adapted and extended L-TRU rating scheme was applied to 41 video-recorded lessons of 26 teachers who all used the same language-responsive curriculum material on percentages. The qualitative insights gained from selected transcripts reveal that the dimensions indeed capture important distinctions in valid ways. The analysis of interrater reliability and correlations confirms that distinct dimensions are captured with reliability. The quantitative overview of the ratings of 497 episodes shows that in spite of the shared curriculum material, a large variety of instructional practices were enacted: Consistently high quality was found in the dimensions Cognitive Demand and Equitable Access and a medium quality in Connecting Registers. The dimensions Agency, Discursive Demand and Use of Contributions show the largest variance among teachers, with Discursive Demand separating most. These findings empirically substantiate an important research tool for quantitatively capturing teaching practices with respect to their general mathematics instruction quality and language-responsive quality.
Dynamics and star formation activity of CG J1720-67.8 unveiled through integral field spectroscopy and radio observations
Creators: name: Temporin, S.
name: Staveley-Smith, L.
name: Kerber, F.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: CG J1720-67.8 is an ultra compact group of several galaxies with a low velocity dispersion, and displaying the hallmarks of mutual interaction and possible tidal dwarf galaxy formation. In hierarchical models, the system is a possible precursor to a massive elliptical galaxy. In this paper, we use new optical integral field spectroscopic and radio observations to investigate the evolutionary status of the group in more detail: global star-formation rates are estimated using H$α$ and 1.4 GHz radio continuum measurements; H {\sc i} observations provide an upper limit to the global neutral gas content; optical broadband colours and spectra provide ages and stellar mass estimates for the tidal dwarf candidates; the bidimensional H$α$ velocity field is used to trace the kinematics of the group and its members, which are compared with numerical simulations of galaxy encounters. The observations suggest a model in which multiple interactions have occurred, with the latest strong encounter involving at least two major components within the last 200 Myr. Debris from the encounter fuels ongoing star formation at the global level of $\sim20$ M$_{\odot}$ yr$^{-1}$, with self-gravity within the tidal tail possibly providing a mechanism to enhance the star formation rate of the tidal dwarf candidates, with bursts of star-formation in clumps of mass $\sim2\times 10^7$ M$_{\odot}$ appearing within the last 10 Myr. The amount of time required for final merging of all group components remains uncertain.
description: 22 pages, 16 figures. Accepted for publication in MNRAS
Cross-sectional scanning tunneling microscopy of InAs/GaAs(001) submonolayer quantum dots
Creators: name: Gajjela, R. S. R.
name: Hendriks, A. L.
name: Alzeidan, A.
name: Cantalice, T. F.
name: Quivy, A. A.
name: Koenraad, P. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Cross-sectional scanning tunneling microscopy (X-STM) was employed to characterize the InAs submonolayer quantum dots (SMLQDs) grown on top of a Si-doped GaAs(001) substrate in the presence of (2X4) and c(4X4) surface reconstructions. Multiple layers were grown under different conditions to study their effects on the formation, morphology and local composition of the SMLQDs. The morphological and compositional variations in SMLQDs were observed by both filled and emptystate imaging. A detailed analysis of indium segregation in the SMLQDs layers was described by fitting local indium concentration profile with a standard segregation model. A strong influence of arsenic flux over the formation of the SMLQDs and indium incorporation was observed and reported. We investigated the well-width fluctuations of the InGaAs quantum well (QW) in which SMLQDs were formed . The monolayer fluctuations of the well width were negligible compared to the more pronounced compositional fluctuations in all the layers. Keywords: Submonolayer quantum dots, Surface reconstruction, X-STM, Indium segregation