cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Superconductivity in twisted multilayer graphene: a smoking gun in recent condensed matter physics
Creators: name: Chu, Yonghuan
name: Zhu, Fangduo
name: Wen, Linzhi
name: Chen, Wanying
name: Chen, Qiaoni
name: Ma, Tianxing
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In this article, we review the recent discoveries of exotic phenomena in graphene, especially superconductivity. It has been theoretically suggested for more than one decade that superconductivity may emerge in doped graphene-based materials. For single-layer graphene, there are theoretical predictions that spin-singlet $d+id$ pairing superconductivity is present when the filling is around the Dirac point. If the Fermi level is doped to the Van Hove singularity where the density of states diverges, then unconventional superconductivity with other pairing symmetry would appear. However, the experimental perspective was a bit disappointing. Despite extensive experimental efforts, superconductivity was not found in monolayer graphene. Recently, unconventional superconductivity was found in "magic-angle" twisted bilayer graphene. Superconductivity was also found in ABC stacked trilayer graphene and other systems. In this article, we review the unique properties of superconducting states in graphene, experimentally controlling the superconductivity in twisted bilayer graphene, as well as a gate-tunable Mott insulator, and the superconductivity in trilayer graphene. These discoveries have attracted the attention of a large number of physicists. The study of the electronic correlated states in twisted multilayer graphene serves as a smoking gun in recent condensed matter physics.
description: Published version in Chinese Physics B. Much more references are added
Ajibade, P. (2018). Technology acceptance model limitations and criticisms: Exploring the practical applications and use in technology-related studies, mixed-method, and qualitative researches. Library Philosophy & Practice.
Creators: name: Ajibade, Patrick
Publisher: name: figshare
Year: 2020
Subjects: subject: 80703 Human Information Behaviour
subject: FOS: Media and communications
subject: Library and Information Studies
subject: 80706 Librarianship
subject: Digital Humanities
subject: 130203 Economics, Business and Management Curriculum and Pedagogy
subject: FOS: Educational sciences
subject: 130304 Educational Administration, Management and Leadership

description: Many researchers have been citing the Technology Acceptance Model (TAM) because of the simplicity of the model without considering actual applications in their studies. This paper presented some of the criticisms and limitations of Technology Acceptance Model (TAM), taking into consideration, the use of the model technology-related studies across various disciplines particularly in social sciences, educations and management researches. The TAM limitations, critiques and criticism were presented based on the literature review, the model suitability and practical application of the model within enterprises and institutional context. The paper used a desktop research approach. The paper objective addressed the limitation and of the TAM model, and presented a modified model for LIS and social sciences research general applications. However, this paper argues that the TAM model was more appropriate for individual use and acceptance of technology rather than in a corporate or institutional application that requires integration of information technology. The paper uses literature as secondary data and insights gathered from attempts to utilize the model for doctoral studies to presents its limitations and impracticality in an institutional environment. However, based on the findings from the field research, a Technology Acceptance and Use Model was proposed which takes into account, the identified limitations and criticism of TAM, companies’ rules and regulations regarding how technology is used for different business processes. The core argument is that staff IT proficiency and experiences promote the ease of use of technology, while technology acceptance and intention is moderated by the company’s rules, policy, and IT guidelines.
Programas de agroindustrialização para o desenvolvimento rural: riscos e incertezas dos projetos de implantação
Creators: name: Lourenzani, Wagner Luiz
name: Silva, Carlos Arthur Barbosa Da
name: Lourenzani, Wagner Luiz
name: Silva, Carlos Arthur Barbosa Da
Publisher: name: Unknown
Year: 2003
Subjects: subject: agroindustrialization
subject: rural development
subject: economic sustainability

description: In order to ensure the economic sustainability of a small-scale agroindustrial project, it is essential that proper investment opportunity studies be conducted, observing, among other factors, the business model and its associated risks. An adequate ability to perform this analysis is also considered essential to guarantee the effectiveness of development programs. The objective of this work is to discuss the current methodology of feasibility studies, emphasizing the specific needs of small-scale agroindustrial project analysis. An attempt to identify the limitations of the classical approach of uncertainty and risk analyses, in this regard, is made. It is argued that the success rate of agroindustrial development projects and programs can be improved by the preparation and evaluation of well designed business plans. In this perspective, variables that may threaten the sustainability goal should be properly identified and evaluated under a systems approach.
Tensor and pairing interactions within the QMC energy density functional
Creators: name: Martinez, Kay Marie L.
name: Thomas, Anthony William
name: Guichon, Pierre A. M.
name: Stone, Jirina R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In the latest version of the QMC model, QMC$π$-III-T, the density functional is improved to include the tensor component quadratic in the spin-current and a pairing interaction derived in the QMC framework. Traditional pairing strengths are expressed in terms of the QMC parameters and the parameters of the model optimised. A variety of nuclear observables are calculated with the final set of parameters. The inclusion of the tensor component improves the predictions for ground-state bulk properties, while it has a small effect on the single-particle spectra. Further, its effect on the deformation of selected nuclei is found to improve the energies of doubly-magic nuclei at sphericity. Changes in the energy curves along the Zr chain with increasing deformation are investigated in detail. The new pairing functional is also applied to the study of neutron shell gaps, where it leads to improved predictions for subshell closures in the superheavy region.
Avaliação financeira das cooperativas de crédito rural do estado de Minas Gerais
Creators: name: Bressan, Valéria Gama Fully
name: Braga, Marcelo Jose
name: Bressan, Aureliano Angel
name: Bressan, Valéria Gama Fully
name: Braga, Marcelo Jose
name: Bressan, Aureliano Angel
Publisher: name: Unknown
Year: 2003
Subjects: subject: financial evaluation
subject: financial indicators
subject: agricultural credit cooperatives

description: This article presents a financial analysis of agricultural credit cooperatives in Minas Gerais, between 1998 and 2001. The financial indicators used in this study were separated in the following groups: struture, solvency, costs, financial returns and growth, whose definitions were extracted from the Austin Asis Consulting Company manual. The t-test, with a 5% level of significance, was used as a analytical framework for the financial performance from one year to the next one. As a general result, the indicators showed that the asset and liability accounts were in equilibria, allowing to conclude that the agricultural credit cooperatives of Minas Gerais are in a stable financial situation.
Seasonal variations and trophic relationships among concentrated populations of small fishes in seagrass meadows
Creators: name: Huh, Sung-Hoi
Publisher: name: The University of Texas at Austin
Year: 1983
Subjects: subject: Fish populations
subject: Texas
subject: Redfish Bay
subject: Seagrasses
subject: Aransas Bay
subject: Seasonal variations
subject: Trophic relationships
subject: Fish populations--Texas--Redfish Bay
subject: Seagrasses--Texas--Redfish Bay
subject: Fish populations--Texas--Aransas Bay
subject: Seagrasses--Texas--Aransas Bay

description: Temporal and experimental changes in populations of potential competitors, their resources used, and their available resources can illustrate periods of competition. Dense populations and foods of small fishes were analyzed during 1982-1983 for day-night and monthly changes in an assemblage concentrated naturally in seagrass meadows of Redfish Bay, Texas. Samples totalled 10,223 fishes, in 23 families and 40 species. Fish densities averaged 15.1/m² in shoalgrass and 6.2 individuals/m² in turtlegrass meadows, which were somewhat deeper. The darter goby, pinfish, code goby, and Gulf pipefish were the most common fish species in both shoalgrass and turtlegrass meadows throughout the year. The darter goby predominated in shoalgrass, while the pinfish and code goby predominated in turtlegrass meadows. No clear day-night differences in densities of each common fish were detected during most of the year. Peak abundance of total fishes occurred during spring, with a secondary peak in fall and a minimum in winter. Each of the four common species showed its own seasonal abundance pattern, and had a different larval recruitment and peak abundance separated 1-3 months from other species, with some overlap. Seasonal feeding data for the four most abundant fish species were compared with respect to prey availability to illustrate how resource partitioning of food could mediate possible competition among these abundant consumers. When prey (mainly amphipods) were abundant, during spring, many fish species showed high overlap in food use. Regardless of food availability, the code goby and Gulf pipefish fed mainly on amphipods and copepods. The more common darter goby and pinfish were carnivorous during spring, but they showed herbivorous feeding habits during summer, when they consumed mainly epiphytic algae during periods of lower prey availability. These changes in resource use also resulted during depletion of major foods by fishes concentrated experimentally in cages. These shifts in diets reflect a temporary partitioning of available foods. Different seasonal abundance patterns with different times of peak recruitment among seagrass fish species thus seem to permit use of the seagrass meadow habitats with reduced, seasonal competition for major foods among these concentrated fishes
Atributos que afetam a decisão de compra dos consumidores de carne bovina
Creators: name: Souki, Gustavo Quiroga
name: Salazar, German Torres
name: Antonialli, Luiz Marcelo
name: Pereira, Claudia Aparecida
name: Souki, Gustavo Quiroga
name: Salazar, German Torres
name: Antonialli, Luiz Marcelo
name: Pereira, Claudia Aparecida
Publisher: name: Unknown
Year: 2003
Subjects: subject: marketing research
subject: consumer behavior
subject: agribusiness
subject: beef

description: The purpose of this paper is to identify the attributes of beef that affect the buying decisions of the consumers of Belo Horizonte, Minas Gerais. A descriptive survey was conducted with quantitative variables, with a total of 400 interviews at the point of retail purchase, using structured questionnaires with multiple-choice questions only. It was possible to verify that the attributes considered most important by the consumers regarding the beef were: hygiene, smell, appearance, additive-free, healthy appearance, freshness, flavor, tenderness, color, and nutritional value. We found significant statistical differences between the consumer’s clusters. It indicates that the attributes of the beef that affect the buying decisions are related to gender, age, marital status, household income, educational level, and time dedicated to work.
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 5 (275)]
Creators: name: De Carate, Ambrosius
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1399
Subjects: subject: Sonstige weltliche Aussteller
subject: Notarsurkunde
subject: Urkunde
subject: 090

description: Ambrosius de Carate, Sohn des verstorbenen Jacobus, wohnhaft an der Porta Cumana in der Gemeinde St. Protasii in campo intus in Mailand, verkauft den Brüdern Antonius und Johaninus de Ruzinello, Söhne des verstorbenen Marchellus, beide wohnhaft an der Porta Nova in der Gemeinde St. Bartholomaei intus in Mailand, ein Gebäude, gelegen in Mailand.
Perceptions of People at Workplace
Creators: name: Yingchi Guo
name: Schmader, Toni
Publisher: name: OSF Registries
Year: 2024
Subjects: subject: Social Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: allyship actions
subject: gender
subject: social evaluation
subject: social perception

description: This document pre-registers a set of analyses examining the influence of gender decomposition on people's expected evaluation after taking allyship actions. [Nick name: impression management]
Neutrino emission and cooling rates of spin-one color superconductors
Creators: name: Schmitt, Andreas
name: Shovkovy, Igor A.
name: Wang, Qun
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Neutrino emissivities due to direct Urca processes of several spin-one color-superconducting phases of dense quark matter are calculated. In particular, the role of anisotropies and nodes of the gap functions is analyzed. Results for the specific heat as well as for the cooling rates of the color-spin-locked, planar, polar, and {\it A} phases are presented and consequences for the physics of neutron stars are briefly discussed. Furthermore, it is shown that the {\em A} phase exhibits a helicity order, giving rise to a reflection asymmetry in the neutrino emissivity.
description: 25 pages, 6 figures, v2: minor modifications, several references added, version to appear in Phys. Rev. D
Ciência, corpo e mente como categorias de conhecimento
Creators: name: Siqueira, Euler David De
name: Siqueira, Euler David De
Publisher: name: Unknown
Year: 2003
Subjects: subject: body
subject: corporal technique
subject: mind
subject: reason
subject: experience

description: In modern times the human body is pointed out as the central locus of countless representations and discussions, mainly those based in the consumption, pleasure and leisure society. As for the phylosophical thinking tradition the human body has hierachically been ranked inferior to reason and soul. Nowadays the new forms of communication and information impose an aesthetic pattern turned to pleasure and consumption, radically accelerating the process of valorizing capital. In the center of the consumption process the human body gains importance over the rational dimension, after all, saving an immortal soul is no longer what it is all about, but to make use of the potentialities that a healthy and cared about body can offer. Meanwhile, new relations between body and soul are established, showing not only dicotomical poles, but complementarities that do not exclude each other mutually. To think body and soul, then, means to able to learn new a values chart and social institutions that shape it according to new aesthetical and ethical rules.
Packing of spanning mixed arborescences
Creators: name: Gao, Hui
name: Yang, Daqing
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: In this paper, we characterize a mixed graph $F$ which contains $k$ edge and arc disjoint spanning mixed arborescences $F_{1}, \ldots, F_{k}$, such that for each $v \in V(F)$, the cardinality of $\{i \in [k]: v \text{ is the root of } F_{i}\}$ lies in some prescribed interval. This generalizes both Nash-Williams and Tutte's theorem on spanning tree packing for undirected graphs and the previous characterization on digraphs which was given by Cai [in: Arc-disjoint arborescences of digraphs, J. Graph Theory 7(2) (1983), 235-240] and Frank [in: On disjoint trees and arborescences, Algebraic Methods in Graph Theory, Colloquia Mathematica Soc. J. Bolyai, Vol. 25 (North-Holland, Amsterdam) (1978), 159-169].
Double Grothendieck polynomials and colored lattice models
Creators: name: Buciumas, Valentin
name: Scrimshaw, Travis
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: Mathematical Physics (math-ph)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 05E05, 82B23, 14M15, 05A19

description: We construct an integrable colored six-vertex model whose partition function is a double Grothendieck polynomial. This gives an integrable systems interpretation of bumpless pipe dreams and recent results of Weigandt [arXiv:2003.07342] relating double Grothendieck polynomias with bumpless pipe dreams. For vexillary permutations, we then construct a new model that we call the semidual version model. We use our semidual model and the five-vertex model of Motegi and Sakai to given a new proof that double Grothendieck polynomials for vexillary permutations are equal to flagged factorial Grothendieck polynomials. Taking the stable limit of double Grothendieck polynomials, we obtain a new proof that the stable limit is a factorial Grothendieck polynomial as defined by McNamara. The states of our semidual model naturally correspond to families of nonintersecting lattice paths, where we can then use the Lindström-Gessel-Viennot lemma to give a determinant formula for double Schubert polynomials corresponding to vexillary permutations.
description: 24 pages, 10 figures; v2 minor corrections from referee reports
Thermodynamics of RNA/DNA hybridization in high density oligonucleotide microarrays
Creators: name: Carlon, Enrico
name: Heim, Thomas
Publisher: name: arXiv
Year: 2004
Subjects: subject: Biomolecules (q-bio.BM)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We analyze a series of publicly available controlled experiments (Latin square) on Affymetrix high density oligonucleotide microarrays using a simple physical model of the hybridization process. We plot for each gene the signal intensity versus the hybridization free energy of RNA/DNA duplexes in solution, for perfect matching and mismatching probes. Both values tend to align on a single master curve in good agreement with Langmuir adsorption theory, provided one takes into account the decrease of the effective target concentration due to target-target hybridization in solution. We give an example of a deviation from the expected thermodynamical behavior for the probe set 1091\_at due to annotation problems, i.e. the surface-bound probe is not the exact complement of the target RNA sequence, because of errors present in public databases at the time when the array was designed. We show that the parametrization of the experimental data with RNA/DNA free energy improves the quality of the fits and enhances the stability of the fitting parameters compared to previous studies.
description: 11 pages, 16 figures - final version as published
Replication Package of "Revisiting Dockerfiles in Open Source Software Over Time"
Creators: name: Kalvin Eng
name: Hindle, Abram
Publisher: name: Zenodo
Year: 2021
Subjects: Git
GitHub
Docker

description: This is the replication package for the paper titled: "Revisiting Dockerfiles in Open Source Software Over Time". README.md gives an overview of the files in this package. docker_data.gz is a postgres database dump needed for analysis. data.tar.gz is a cache of files that contains data that might be difficult to obtain. scripts.zip contains the scripts needed for extraction and analysis.
Development of nociceptive brain states in preterm neonates
Creators: name: Jucha Willers Moore
Publisher: name: figshare
Year: 2020
Subjects: subject: Neuroscience
subject: 60114 Systems Biology
subject: FOS: Biological sciences

description: UCL MSc Neuroscience thesis
Noxious inputs reach the human preterm brain from as early as 28 weeks corrected gestational age. However, during the equivalent of the final gestational trimester, the brain undergoes rapid developmental changes. Therefore, processing of sensory information, including noxious, likely changes over this period. Brain states, which are defined as transient states of engagement of neural networks, can be used to assess the development of cortical processing of sensory stimuli. Brain state analysis suggests that evoked cortical responses to a noxious heel lance are predominantly nociceptive-specific and continually changes throughout the final trimester. Individual nociceptive-specific brain states have different developmental trajectories. Some states are engaged early in the third trimester and disappear with development (immature), some emerge and remain present for the middle of the final trimester (transitory), whilst others only emerge around term age (mature). This highlights the possibility that infants at different gestational ages may perceive pain differently.
Applications of Light-Front QCD
Creators: name: Brodsky, Stanley J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Light-front Fock state wavefunctions encode the bound state properties of hadrons in terms of their quark and gluon degrees of freedom at the amplitude level. The freedom to choose the light-like quantization four-vector provides an explicitly covariant formulation of light-front quantization and can be used to determine the analytic structure of light-front wave functions. The AdS/CFT correspondence of large N_C supergravity theory in higher-dimensional anti-de Sitter space with supersymmetric QCD in 4-dimensional space-time has interesting implications for hadron phenomenology in the conformal limit, including an all-orders demonstration of counting rules for exclusive processes. String/gauge duality also predicts the QCD power-law behavior of light-front Fock-state hadronic wavefunctions with arbitrary orbital angular momentum at high momentum transfer. The form of these near-conformal wavefunctions can be used as an initial ansatz for a variational treatment of the light-front QCD Hamiltonian. I also briefly review recent work which shows that some leading-twist phenomena such as the diffractive component of deep inelastic scattering, single spin asymmetries, nuclear shadowing and antishadowing cannot be computed from the LFWFs of hadrons in isolation.
description: Presented at QCD DOWN UNDER, 10--13 March 2004 in the Barossa Valley, 15--19 March 2004 at CSSM, Adelaide, Australia
I Manoscritti Autografi di S. Nilo Juniore, fondatore del Monastero di S. M. di Grottaferrata
Creators: name: Gassisi, Sofronio
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 4 Nr. 2 (1904): Oriens christianus, Band 4, Heft 2
Correlations in Systems of Complex Directed Macromolecules
Creators: name: Moseley, Christopher
name: Ziegler, Klaus
Publisher: name: arXiv
Year: 2004
Subjects: subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences

description: An ensemble of directed macromolecules on a lattice is considered, where the constituting molecules are chosen as a random sequence of N different types. The same type of molecules experiences a hard-core (exclusion) interaction. We study the robustness of the macromolecules with respect to breaking and substituting individual molecules, using a 1/N expansion. The properties depend strongly on the density of macromolecules. In particular, the macromolecules are robust against breaking and substituting at high densities.
description: 9 pages, 4 figures
Blue Stragglers in Low-Luminosity Star Clusters
Creators: name: Sandquist, Eric L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We examine the blue straggler populations of 13 low-luminosity (M_V_t >~ -6) globular clusters and 2 old open clusters. These clusters test blue straggler formation in environments intermediate between higher luminosity (and usually higher density) clusters and the Galactic field. The anti-correlation between the relative frequency of blue stragglers (F_BSS = N_BSS / N_HB) and cluster luminosity continues to the lowest luminosity clusters, which have frequencies meeting or exceeding that of field stars. In addition we find that the anti-correlation between straggler frequency and central density disappears for clusters with density less than about 300 L_V,sun pc^-3, although this appears to be an artifact of the correlation between cluster luminosity and central density. We argue on observational (wide, eccentric binaries containing blue stragglers in M67, and the existence of very bright stragglers in most of the clusters in our sample) and theoretical grounds that stellar collisions still produce a significant fraction of the blue stragglers in low luminosity star clusters due to the long-term survival of wide binaries.
description: 13 pages, 3 figures, accepted to ApJ Letters
Relational Fusion Networks: Graph Convolutional Networks for Road Networks
Creators: name: Jepsen, Tobias Skovgaard
name: Jensen, Christian S.
name: Nielsen, Thomas Dyhre
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: The application of machine learning techniques in the setting of road networks holds the potential to facilitate many important intelligent transportation applications. Graph Convolutional Networks (GCNs) are neural networks that are capable of leveraging the structure of a network. However, many implicit assumptions of GCNs do not apply to road networks. We introduce the Relational Fusion Network (RFN), a novel type of GCN designed specifically for road networks. In particular, we propose methods that outperform state-of-the-art GCNs by 21%-40% on two machine learning tasks in road networks. Furthermore, we show that state-of-the-art GCNs may fail to effectively leverage road network structure and may not generalize well to other road networks.
description: IEEE Transactions on Intelligent Transportation Systems (2020). arXiv admin note: substantial text overlap with arXiv:1908.11567
Conformal Symmetry as a Template for QCD
Creators: name: Brodsky, Stanley J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Conformal symmetry is broken in physical QCD; nevertheless, one can use conformal symmetry as a template, systematically correcting for its nonzero $β$ function as well as higher-twist effects. For example, commensurate scale relations which relate QCD observables to each other, such as the generalized Crewther relation, have no renormalization scale or scheme ambiguity and retain a convergent perturbative structure which reflects the underlying conformal symmetry of the classical theory. The ``conformal correspondence principle" also dictates the form of the expansion basis for hadronic distribution amplitudes. The AdS/CFT correspondence connecting superstring theory to superconformal gauge theory has important implications for hadron phenomenology in the conformal limit, including an all-orders demonstration of counting rules for hard exclusive processes as well as determining essential aspects of hadronic light-front wavefunctions. Theoretical and phenomenological evidence is now accumulating that QCD couplings based on physical observables such as tau decay become constant at small virtuality; i.e., effective charges develop an infrared fixed point in contradiction to the usual assumption of singular growth in the infrared. The near-constant behavior of effective couplings also suggests that QCD can be approximated as a conformal theory even at relatively small momentum transfer. The importance of using an analytic effective charge such as the pinch scheme for unifying the electroweak and strong couplings and forces is also emphasized.
description: Invited talk given at the Workshop: Continuous Advances in QCD 2004, William I. Fine Theoretical Physics Institute, University of Minnesota, Minneapolis, May 13-16, 2004
Ciência, tecnologia e sociedade: visões sobre transformações da pesquisa agrícola no Brasil
Creators: name: Santos, Lucy Woellner Dos
name: Ichikawa, Elisa Yoshie
name: Santos, Lucy Woellner Dos
name: Ichikawa, Elisa Yoshie
Publisher: name: Unknown
Year: 2003
Subjects: subject: agricultural research
subject: qualitative research
subject: research management

description: The present work aims at reflecting upon the future of agricultural research in Brazil, having as a background numerous changes that are taking place in the organization of such sector. It is based on a qualitative methodological strategy, the data survey being carried out by means of semistructured interviews. The interviewees were people linked to the agricultural sector in the State of Santa Catarina, namely, researchers, extension activity personnel, directors of research companies and rural extension, representatives of producers associations, former state secretaries of agriculture, government advisors, amongst others. From the analysis of the interview contents, the main issues raised are related to the role of the State, the participation of the producers in the definition of research goals and policies, the interests of private initiative, and the uprising of the figure of a "new researcher". Such issues reveal new demands from the society, urging the conception of new research models, which, on the one side, are tuned with those demands, and on the other side, promote a more critical integration of the agricultural research and the logic of the economy globalization.
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 4 (100)]
Creators: name: De Lochimputeis, Johannes Verrus
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1227
Subjects: subject: Sonstige weltliche Aussteller
subject: Notarsurkunde
subject: Urkunde
subject: 090

description: Johannes Verrus de Lochimputeis versichert dem Caninus Avus seine Güter als Pfand.
Phases of a matrix model with non-pairwise index contractions
Creators: name: Obster, Dennis
name: Sasakura, Naoki
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: Recently a matrix model with non-pairwise index contractions has been studied in the context of the canonical tensor model, a tensor model for quantum gravity in the canonical formalism. This matrix model also appears in the same form with different ranges of parameters and variables, when the replica trick is applied to the spherical $p$-spin model ($p=3$) in spin glass theory. Previous studies of this matrix model suggested the presence of a continuous phase transition around $R\sim N^2/2$, where $N$ and $R$ designate its matrix size $N\times R$. This relation between $N$ and $R$ intriguingly agrees with a consistency condition of the tensor model in the leading order of $N$, suggesting that the tensor model is located near or on the continuous phase transition point and therefore its continuum limit is automatically taken in the $N\rightarrow \infty$ limit. In the previous work, however, the evidence for the phase transition was not satisfactory due to the slowdown of the Monte Carlo simulations. In this work, we provide a new setup for Monte Carlo simulations by integrating out the radial direction of the matrix. This new strategy considerably improves the efficiency, and allows us to clearly show the existence of the phase transition. We also present various characteristics of the phases, such as dynamically generated dimensions of configurations, cascade symmetry breaking, and a parameter zero limit, to discuss some implications to the canonical tensor model.
description: 35 pages, 19 figures
Learning on dynamic statistical manifolds
Creators: name: Boso, Francesca
name: Tartakovsky, Daniel M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: Hyperbolic balance laws with uncertain (random) parameters and inputs are ubiquitous in science and engineering. Quantification of uncertainty in predictions derived from such laws, and reduction of predictive uncertainty via data assimilation, remain an open challenge. That is due to nonlinearity of governing equations, whose solutions are highly non-Gaussian and often discontinuous. To ameliorate these issues in a computationally efficient way, we use the method of distributions, which here takes the form of a deterministic equation for spatiotemporal evolution of the cumulative distribution function (CDF) of the random system state, as a means of forward uncertainty propagation. Uncertainty reduction is achieved by recasting the standard loss function, i.e., discrepancy between observations and model predictions, in distributional terms. This step exploits the equivalence between minimization of the square error discrepancy and the Kullback-Leibler divergence. The loss function is regularized by adding a Lagrangian constraint enforcing fulfillment of the CDF equation. Minimization is performed sequentially, progressively updating the parameters of the CDF equation as more measurements are assimilated.
description: 17 pages, 8 figures
THE ECONOMIC VALUE OF GRASSLAND PRODUCTS
Creators: name: Nabradi, Andras
name: Nabradi, Andras
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Production Economics
subject: Productivity Analysis
subject: glassland utilisation
subject: replacement value
subject: value of grass in animal husbandry

description: The economic value of grassland products is not always clear. In addition to demonstrating the social benefits of grassland products, the objective of the present study is to present the value of their diverse forms of utilization and their definitions in practice. This study groups marketable and non-marketable grass products and introduces a new category, the animal husbandry value of grasses. Among other factors, economists differ from researchers in other areas of science, as they are basically motivated by three issues The first question economists always raise is: “What can it be used for?”, the second is: “What is it worth?”, and the third is: “How can it (its value) be determined?” Any answers to any further questions are subordinated to the answers to these three.
AGK Cutting Rules and Multiple Scattering in Hadronic Collisions
Creators: name: Bartels, J.
name: Salvadore, M.
name: Vacca, G. P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the AGK rules for the exchange of an arbitrary number of reggeized gluons in perturbative QCD in the high energy limit. Results include the cancellation of corrections to single jet and double jet inclusive cross sections, both for hard and soft rescattering contributions.
description: 31 pages, latex, 20 figures
Exclusive vector meson production in electron-ion collisions at the EIC, LHeC and FCC-$eh$
Creators: name: Goncalves, Victor P.
name: Martins, Daniel E.
name: Sena, Celso R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The exclusive vector meson production in electron-ion collisions for the energies of the future colliders is investigated. We present predictions for the coherent and incoherent $ϕ$ and $J/ψ$ production in $eAu$ collisions considering the possible states of nucleon configurations in the nuclear wave function and taking into account of the non-linear corrections to the QCD dynamics. The cross sections and transverse momentum distributions are estimated assuming the energies of the Electron-Ion Collider (EIC), Large Hadron Electron Collider (LHeC) and Future Circular Collider (FCC-$eh$). Our results indicate that a future experimental analysis of these processes can shed light on the modeling of the gluon saturation effects and constrain the description of the QCD dynamics at high energies.
description: 7 pages, 3 figures, 3 tables. arXiv admin note: substantial text overlap with arXiv:2007.13625
Supplementary Material
Creators: name: West, Robert
name: Mobilia, Mauro
name: Assaf, Michael
name: Taitelbaum, Ami
Publisher: name: figshare
Year: 2020
Subjects: subject: 10406 Stochastic Analysis and Modelling
subject: FOS: Mathematics
subject: 10202 Biological Mathematics

description: Supplementary Material to the main text, available at - https://arxiv.org/abs/2002.10372
ISO observations of 3 - 200 micron emission by three dust populations in an isolated local translucent cloud
Creators: name: Rawlings, M. G.
name: Juvela, M.
name: Mattila, K.
name: Lehtinen, K.
name: Lemke, D.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present ISOPHOT spectrophotometry of three positions within the isolated high latitude cirrus cloud G 300.2 - 16.8, spanning from the near- to far-infrared. The positions exhibit contrasting emission spectrum contributions from the UIBs, very small grains and large classical grains, and both semi-empirical and numerical models are presented. At all three positions, the UIB spectrum shapes are found to be similar, and the large grain emission may be fitted by an equilibrium temperature of ~17.5 K. The energy requirements of both the observed emission spectrum and optical scattered light are shown to be satisfied by the incident local ISRF. The FIR emissivity of dust in G 300.2 - 16.8 is found to be lower than in globules or dense clouds, and is even lower than model predictions for dust in the diffuse ISM. The results suggest physical differences in the ISM mixtures between positions within the cloud, possibly arising from grain coagulation processes.
description: 22 pages, 8 tables, 11 figures (figure 8 is in colour). Landscape table included as separate LaTeX file. Accepted for publication in MNRAS
Strange Quark Matter in Stars: A General Overview
Creators: name: Schaffner-Bielich, Jurgen
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The physics of strange quark matter in the core of compact stars and recent compact star data is reviewed. Emphasis is put on the possible existence of a third family of strange quark stars.
description: 8 pages, 1 figure, plenary talk given at the 8th International Conference on Strangeness in Quark Matter (SQM2004), Cape Town, South Africa, 15-20 September 2004
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 4 (108)]
Creators: name: Ghidinus
name: Michelus
name: Meliolus
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1330
Subjects: subject: Sonstige weltliche Aussteller
subject: Notarsurkunde
subject: Urkunde
subject: 090

description: Ghidinus, Michelus und Meliolus, Söhne des verstorbenen Johannes de Melio, aus Soncino sichern dem Johannes Zorra zu, einen Geldbetrag zurückzuzahlen.
On the properties of surface reconstructed silicon nanowires
Creators: name: Rurali, R.
name: Lorente, N.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study by means of density-functional calculations the role of lateral surface reconstructions in determining the electrical properties of <100> silicon nanowires. The different lateral reconstructions are explored by relaxing all the nanowires with crystalline bulk silicon structure and all possible ideal facets that correspond to an average diameter of 1.5 nm. We show that the reconstruction induces the formation of ubiquitous surface states that turn the wires into semi-metallic or metallic.
Quantum chaotic patterns in the E x (b_1+b_2) Jahn-Teller model
Creators: name: Majernikova, E.
name: Shpyrko, S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Chaotic Dynamics (nlin.CD)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study statistical properties of excited levels of the E x (b_1+b_2) Jahn-Teller model. The multitude of avoided crossings of energy levels is generally claimed to be a testimony of quantum chaos. We found that apart from two limiting cases (E x e and Holstein model) the distribution of nearest-neighbor spacings is rather stable as to the change of parameters and different from the Wigner one. This limiting distribution assumably shows scaling ~$\sqrt{S}$ at small S and resembles the semi-Poisson law P(S)= 4S \exp (-2 S) at S> 1. The latter is believed to be universal and characteristic, e.g., at the transition between metal and insulator phases.
description: 5 figs, 4 pages, published in Phys.Rev.E; sequel of cond-mat/0509687
LEARNING FOR THE KNOWLEDGE SOCIETY
Creators: name: Ticha, Ivana
name: Ticha, Ivana
Publisher: name: Unknown
Year: 2007
Subjects: subject: Community/Rural/Urban Development
subject: Farm Management
subject: Research and Development/Tech Change/Emerging Technologies
subject: Teaching/Communication/Extension/Profession
subject: knowledge society
subject: knowledge economy index
subject: innovation systems
subject: education

description: With sustained use and creation of knowledge in the centre of the economic development process, an economy essentially becomes a Knowledge Economy. A Knowledge Economy (KE) is one that utilizes knowledge as the key engine of economic growth. It is an economy where knowledge is acquired, created, disseminated and used effectively to enhance economic development.
Risk-Sensitive Reinforcement Learning: a Martingale Approach to Reward Uncertainty
Creators: name: Vadori, Nelson
name: Ganesh, Sumitra
name: Reddy, Prashant
name: Veloso, Manuela
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Risk Management (q-fin.RM)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Economics and business

description: We introduce a novel framework to account for sensitivity to rewards uncertainty in sequential decision-making problems. While risk-sensitive formulations for Markov decision processes studied so far focus on the distribution of the cumulative reward as a whole, we aim at learning policies sensitive to the uncertain/stochastic nature of the rewards, which has the advantage of being conceptually more meaningful in some cases. To this end, we present a new decomposition of the randomness contained in the cumulative reward based on the Doob decomposition of a stochastic process, and introduce a new conceptual tool - the \textit{chaotic variation} - which can rigorously be interpreted as the risk measure of the martingale component associated to the cumulative reward process. We innovate on the reinforcement learning side by incorporating this new risk-sensitive approach into model-free algorithms, both policy gradient and value function based, and illustrate its relevance on grid world and portfolio optimization problems.
description: Published at ICAIF 2020: ACM International Conference on AI in Finance
AGRI-ENVIRONMENTAL MANAGEMENT AND RURAL DEVELOPMENT: HUNGARY AFTER EU ACCESSION
Creators: name: Kovacs, Judit Katona
name: Kovacs, Judit Katona
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: Environmental Economics and Policy
subject: agri-environment
subject: leader
subject: rural development
subject: social capital
subject: sustainability

description: In Hungary, similarly to developed countries, the share of agriculture in the GDP has declined. Even so, preparation of the sector’s long term strategy is crucial, as the role of agriculture exceeds the results represented in the GDP. Environmental and social functions of agriculture are revaluated in developed countries, and consumers at the end of the food chain actually govern the entire process. This is why information plays an increasingly important role, and gives signals (Verbeke, 2005) to the actors in the economy and society. This research area is diverse (including agricultural policy, environmental policy, rural development and sustainable development), and so I applied an interdisciplinary approach and conducted an integrated examination. The results show that in recent decades, the pressure of agriculture on the environment has been lower in Hungary than in the EU-15 and agri-environmental measures have taken hold in all types of land-use systems, even though they are more important in protected areas. Although this development provides a good basis for a long term strategy social capital has lost strength (Csath, 2002), so fostering the creation of internal and external rural networks – one instrument for this could be the Leader programme – is essential for sustainable rural development.
The Decay of Tau Leptons Produced in Neutrino-Nucleon Scatterings
Creators: name: Aoki, Mayumi
name: Hagiwara, Kaoru
name: Mawatari, Kentarou
name: Yokoya, Hiroshi
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Energy and angular distributions of the tau decay products in the CERN-to-Gran Sasso $ν_τ$ appearance experiments are studied for the decay modes $τ\toπν$ and $τ\to l\barνν$ (l=e or mu). We find that the decay particle distributions in the laboratory frame are significantly affected by the tau polarization. Rather strong azimuthal asymmetry of $pi^-$ and $l^-$ about the tau momentum axis is predicted, which may have observable consequences even at small statistics experiments.
description: 14 pages, 6 eps figures; comments on Fig. 1 added, Fig. 4 improved to see clearly