cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Technological and financial approaches to risk management in agriculture: an integrate approach
Creators: name: Chambers, Robert G.
name: Quiggin, John C.
name: Chambers, Robert G.
name: Quiggin, John C.
Publisher: name: Unknown
Year: 2004
Subjects: Risk and Uncertainty

description: In the present paper, risk‐management problems where farmers manage risk both through production decisions and through the use of market‐based and informal risk‐management mechanisms are considered. It is shown that many of these problems share a common structure, and that a unified and informative treatment of a broad spectrum of risk‐management tools is possible within a cost‐minimisation framework, under minimal conditions on their objective functions. Fundamental results are derived that apply regardless of the producer's preference towards risks, using only the no‐arbitrage condition that agricultural producers never forego any opportunity to lower costs without lowering returns.
Large-area printing of ferroelectric surface and super-domains for efficient solar water splitting
Creators: name: Tian, Yu
name: Wei, Yaqing
name: Pei, Minghui
name: Cao, Rongrong
name: Gu, Zhenao
name: Wang, Jing
name: Liu, Kunhui
name: Shang, Dashan
name: Niu, Jiebin
name: An, Xiaoqiang
name: Long, Run
name: Zhang, Jinxing
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Surface electronic structures of the photoelectrodes determine the activity and efficiency of the photoelectrochemical water splitting, but the controls of their surface structures and interfacial chemical reactions remain challenging. Here, we use ferroelectric BiFeO3 as a model system to demonstrate an efficient and controllable water splitting reaction by large-area constructing the hydroxyls-bonded surface. The up-shift of band edge positions at this surface enables and enhances the interfacial holes and electrons transfer through the hydroxyl-active-sites, leading to simultaneously enhanced oxygen and hydrogen evolutions. Furthermore, printing of ferroelectric super-domains with microscale checkboard up/down electric fields separates the distribution of reduction/oxidation catalytic sites, enhancing the charge separation and giving rise to an order of magnitude increase of the photocurrent. This large-area printable ferroelectric surface and super-domains offer an alternative platform for controllable and high-efficient photocatalysis.
Additional file 1 of Association between SARS-CoV-2 infection and select symptoms and conditions 31 to 150 days after testing among children and adults
Creators: name: Zhang, Yongkang
name: Romieu-Hernandez, Alfonso
name: Boehmer, Tegan K.
name: Azziz-Baumgartner, Eduardo
name: Carton, Thomas W.
name: Gundlapalli, Adi V.
name: Fearrington, Julia
name: Nagavedu, Kshema
name: Dea, Katherine
name: Moyneur, Erick
name: Cowell, Lindsay G.
name: Kaushal, Rainu
name: Mayer, Kenneth H.
name: Puro, Jon
name: Rasmussen, Sonja A.
name: Thacker, Deepika
name: Weiner, Mark G.
name: Saydah, Sharon
name: Block, Jason P.
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology
subject: Computational Biology

description: Additional file 1: eTable 1. Institutions contributing data. eTable 2. Conditions and symptoms examined in the study. eTable 3. Number of Sites Included for Meta Analysis, by Outcome of the Regression Model.
A note on the characteristic classes of negatively curved manifolds
Creators: name: Lafont, J. -F.
name: Roy, R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Geometric Topology (math.GT)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 57R20; 53C35; 57T10

description: We give conceptual proofs of some well known results concerning compact non-positively curved locally symmetric spaces. We discuss vanishing and non-vanishing of Pontrjagin numbers and Euler characteristics for these locally symmetric spaces. We also establish vanishing results for Stiefel-Whitney numbers of (finite covers of) the Gromov-Thurston examples of negatively curved manifolds. We mention some geometric corollaries: the MinVol question, a lower bound for degrees of covers having tangential maps to the non-negatively curved duals, and estimates for the complexity of some representations of certain uniform lattices.
description: 11 pages
Schottky-Enabled Photoemission in a RF Accelerator Photoinjector - Possible Generation of Ultra-Low Transverse Thermal Emittance Electron Beam
Creators: name: Yusof, Zikri M.
name: Conde, Manoel E.
name: Gai, Wei
Publisher: name: arXiv
Year: 2004
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: We present a clear signature of the Schottky effect in a RF photoinjector using photons with energy lower than the Mg cathode work function. This signature is manifested by the shift in the RF phase angle for the onset of the detection of photoelectrons via single-photon absorption and allows for a reasonable estimate of the field enhancement factor. This is a viable method to generate an electron beam with very low thermal emittance and thus, a high brightness beam.
Non-Simply-Connected Symmetries in 6D SCFTs
Creators: name: Dierigl, Markus
name: Oehlmann, Paul-Konstantin
name: Ruehle, Fabian
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Six-dimensional N=(1,0) superconformal field theories can be engineered geometrically via F-theory on elliptically-fibered Calabi-Yau 3-folds. We include torsional sections in the geometry, which lead to a finite Mordell-Weil group. This allows us to identify the full non-Abelian group structure rather than just the algebra. The presence of torsion also modifies the center of the symmetry groups and the matter representations that can appear. This in turn affects the tensor branch of these theories. We analyze this change for a large class of superconformal theories with torsion and explicitly construct their tensor branches. Finally, we elaborate on the connection to the dual heterotic and M-theory description, in which our configurations are interpreted as generalizations of discrete holonomy instantons.
description: 62 pages, 6 figures, 5 tables, 3 appendices
Drought policy: a graphical analysis
Creators: name: Quiggin, John C.
name: Chambers, Robert G.
name: Quiggin, John C.
name: Chambers, Robert G.
Publisher: name: Unknown
Year: 2004
Subjects: Risk and Uncertainty

description: The standard approach to modelling production under uncertainty has relied on the concept of the stochastic production function. In the present paper, it is argued that a state‐contingent production model is more flexible and realistic. The model is applied to the problem of drought policy.
Additional file 1 of Needs of amyloidosis patients and their care providers: design & first results of the AMY-NEEDS research and care program
Creators: name: Ihne-Schubert, Sandra Michaela
name: Radovic, Teresa
name: Fries, Saskia
name: Frantz, Stefan
name: Einsele, Hermann
name: Störk, Stefan
name: Neuderth, Silke
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. Table 1: Categories.
Additional file 1 of Selective neural electrical stimulation restores hand and forearm movements in individuals with complete tetraplegia
Creators: name: Tigra, Wafa
name: Dali, Mélissa
name: William, Lucie
name: Fattal, Charles
name: Gélis, Anthony
name: Jean-Louis Divoux
name: Coulet, Bertrand
name: Teissier, Jacques
name: Guiraud, David
name: Coste, Christine Azevedo
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology

description: Additional file 1. This file includes 9 Tables / Figures numbered S1 to S9 that give further details on obtained isolated movements (Figure S1, Table S2), electrodes’ configurations (Tables S3-S4, Figure S5), the ranges of scanned current amplitudes (Table S6), the modified MRC scale (Table S7), EMG processing details (Figure S8) and a possible fascicular organization (Figure S9).
Discrete regularisation of localised kinetic terms
Creators: name: del Aguila, Francisco
name: Perez-Victoria, Manuel
name: Santiago, Jose
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the behaviour of 5d models with general brane kinetic terms by discretising the extra dimension. We show that in the continuum limit the Kaluza-Klein masses and wave functions are in general nonanalytic in the coefficients of brane terms.
description: Presented at the 7th DESY Workshop on Elementary Particle Theory ``Loops and Legs in Quantum Field Theory'', Zinnowitz, April 25-30, 2004
Additional file 5 of Humanization of care in pediatric wards: differences between perceptions of users and staff according to department type
Creators: name: Mandato, C.
name: M. A. Siano
name: A. G. E. De Anseris
name: M. Tripodi
name: G. Massa
name: R. De Rosa
name: M. Buffoli
name: A. Lamanna
name: P. Siani
name: P. Vajro
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases

description: Additional file 5 Table S4. Comparison between the degree of humanization existing and perceived, in the seven hospitals wards categorized under the three types of settings.
Computational problems in multiagent systems
Creators: name: Jiang, Albert Xin
Publisher: name: University of British Columbia
Year: 2010

description: There has been recent interest from the computer science community on multiagent systems, where multiple autonomous agents, each with their own utility functions, act according to their own interests. In this thesis, we apply techniques developed in other areas of CS to solve two computational problems in multiagent systems: Action Graph Games: Action Graph Games (AGGs), first proposed in [Bhat and Leyton-Brown 2004], are a fully expressive game representation which can compactly express strict and context-specific independence and anonymity structure in players' utility functions. We present an efficient algorithm for computing expected payoffs under mixed strategy profiles. This algorithm runs in time polynomial in the size of the AGG representation (which is itself polynomial in the number of players when the in-degree of the action graph is bounded). We also present an extension to the AGG representation which allows us to compactly represent a wider variety of structured utility functions. Learning and planning i n online auction environments: There is much active research into the design of automated bidding agents, particularly for environments that involve multiple auctions. These settings are complex partly because an agent's optimal strategy depends on information about other bidder's preferences. When bidders' valuation distributions are not known ex ante, machine learning techniques can be used to approximate them from historical data. It is a characteristic feature of auctions, however, that information about some bidders' valuations is systematically concealed. This occurs in the sense that some bidders may fail to bid at all because the asking price exceeds their valuations, and also in the sense that a high bidder may not be compelled to reveal her valuation. Ignoring these "hidden bids" can introduce bias into the estimation of valuation distributions. To overcome this problem, we proposed an EM-base algorithm. We validate the algorithm experimentally using agents that react to their environments both decision-theoretically and game-theoretically, using both synthetic and real-world (eBay) datasets. We show that our approach estimates bidders' valuation distributions and the distribution over the true number of bidders significantly more accurately than more straightforward density estimation techniques. Bidding agents using the estimated distributions from our EM approach were able to outperform bidding agents using the straightforward estimates, in both decision-theoretic and game-theoretic settings.
OBTENCIÓN DE ACEITE DE SEMILLA DE MANGO MANILA (Mangifera indica L.) COMO UNA ALTERNATIVA PARA APROVECHAR SUBPRODUCTOS AGROINDUSTRIALES EN REGIONES TROPICALES
Creators: name: Tapia Santos, Magaly
name: Perez Armendariz, Beatriz
name: Cavazos Arroyo, Judith
name: Mayett Moreno, Yesica
name: Tapia Santos, Magaly
name: Perez Armendariz, Beatriz
name: Cavazos Arroyo, Judith
name: Mayett Moreno, Yesica
Publisher: name: Unknown
Year: 2013
Subjects: subject: Agribusiness
subject: Ethyl ether
subject: Mangifera indica L.
subject: mango seed kernel oil
subject: petroleum ether
subject: saturated fats
subject: unsaturated fats
subject: utilization of agricultural waste

description: The use of agricultural waste products in Mexico, and specifically in tropical regions is an area with great economic potential. In some tropical regions in Mexico it is necessary to generate new products with added value to increase regional development. In this work, two different solvents were evaluated (petroleum ether and ethyl ether) and two different size sample (3 and 6 g) using a factorial design 22 in order to optimize the extraction of fat from the mango. Additionally the chemical characterization of fat obtained was carried out. The results showed significant difference in the type of solvents used, ethyl ether showed better results; however in the size of sample no significant differences were appeared (= 0.01), extraction percent on average of samples were of 5.5%. Chemical characteristics of mango seed kernel oil were found to have a higher ratio of unsaturated fats (53.7%) than saturated fats (45.2%). Oleic acid had the highest proportion (45.6%). The oil obtained showed less than 0.2% moisture and free fatty acid concentration of 2%.
Fractional charge excitations in fermionic ladders
Creators: name: Narozhny, B. N.
name: Carr, S. T.
name: Nersesyan, A. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The system of interacting spinless fermions hopping on a two-leg ladder in the presence of an external magnetic field is shown to possess a long range order: the bond density wave or the staggered flux phase. In both cases the elementary excitations are $Z_2$ kinks and carry one half the charge of an electron.
description: 4 pages, 3 figures
DETERMINACIÓN DE COSTOS DE PRODUCCIÓN EN GRANJAS PRODUCTORAS DE LECHÓN
Creators: name: Bobadilla-Soto, Encarnacion Ernesto
name: Rebollar Rebollar, Samuel
name: Rouco-Yanez, Antonio
name: Martinez-Castaneda, Francisco Ernesto
name: Bobadilla-Soto, Encarnacion Ernesto
name: Rebollar Rebollar, Samuel
name: Rouco-Yanez, Antonio
name: Martinez-Castaneda, Francisco Ernesto
Publisher: name: Unknown
Year: 2013
Subjects: subject: Agribusiness
subject: Fixed costs
subject: variable costs
subject: pig
subject: gain
subject: profit.

description: The aim of this study was to determine the production costs of 1249 litters weaned (matingweaning) on small scale pig farms in different regions of highlands in Mexico during one year (July 2010 to June 2011). Three strata were defined according to the number of sows: Stratum I, 5-10 (n = 8) Stratum II 11-49 (n = 10), Stratum III 50-100 (n = 4). Net income was positive for all strata. Stratum I with $ 206 (unpaid labor) and $ 12 (with paid labor), Stratum II with $ 152, and Stratum III with $ 165 Mexican pesos per piglet sold (14.49, 0.84, 10.69 y 11.60 US dollar with a rate of peso-dollar of 1:0.0703), the relationship B/C were: Stratum I = 1.53% (unpaid labor) and 1.04% (with paid labor), Stratum II with 1.35% and Stratum III with 1.39%.
CANALES Y MÁRGENES DE COMERCIALIZACIÓN DE PRODUCTOS LÁCTEOS EN DOBLADERO, VERACRUZ, MÉXICO
Creators: name: Martinez Castro, Cesar Julio
name: Cotera Rivera, Julian
name: Kido Cruz, Ma. Teresa
name: Martinez Castro, Cesar Julio
name: Cotera Rivera, Julian
name: Kido Cruz, Ma. Teresa
Publisher: name: Unknown
Year: 2013
Subjects: subject: Agribusiness
subject: Marketing
subject: FOS: Economics and business
subject: Gross marketing margin
subject: Direct producer participation
subject: Fresh cheese
subject: String cheese.

description: The objective of this investigation was to identify the channels and marketing margins for dairy products in the community of Dobladero Jose Azueta, Veracruz, Mexico. To this end, we interviewed key participants including producers, owners of dairies and retailers. The results show that the main distribution channel is formed by the sale of milk to cheese producers in the area, who transform it into cheese and string cheese products that are either sold to consumers directly or through retailers, resulting in variation in Gross Marketing Margins (MBC) and Direct Producer Participation (PDP). We conclude that the increase of intermediaries and the costs incurred by each participant influence the price increases to consumers. However, the roles played by intermediaries in the channel are essential as they allow consumers to obtain the dairy products with the quality and price, at the time and place required.
A model of inflation independent of the initial conditions, with bounded number of e-folds and n_s larger orsmaller than one
Creators: name: German, G.
name: de la Macorra, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study a supergravity model of inflation essentially depending on one parameter which can be identified with the slope of the potential at the origin. In this type of models the inflaton rolls at high energy from negative values and a positive curvature potential. At some point defined by the equation $η=1$ inflation starts. The potential curvature eventually changes to negative values and inflation ends when $η=-1$. No spontaneous symmetry breaking type mechanism for inflation of the new type to occur is here required. The model naturally gives a bounded $\it{total}$ number of e-folds which is typically close to the required number for observable inflation and it is independent of the initial conditions for the inflaton. The energy scale introduced is fixed by the amplitude of the anisotropies and is of the order of the supersymmetry breaking scale. The model can also accommodate an spectral index bigger or smaller than one without extreme fine tuning. We show that it is possible to obtain reasonable numbers for cosmological parameters and, as an example, we reproduce values obtained recently by Tegmark $\it{et. al.}$, from WMAP and SDSS data alone.
description: 10 pages LaTeX, 1 figure
Stacked clusters of polycyclic aromatic hydrocarbon molecules
Creators: name: Rapacioli, M.
name: Calvo, F.
name: Spiegelman, F.
name: Joblin, C.
name: Wales, D. J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: Clusters of polycyclic aromatic hydrocarbon (PAH) molecules are modelled using explicit all-atom potentials using a rigid body approximation. The PAH's considered range from pyrene (C10H8) to circumcoronene (C54H18), and clusters containing between 2 and 32 molecules are investigated. In addition to the usual repulsion-dispersion interactions, electrostatic point-charge interactions are incorporated, as obtained from density functional theory calculations. The general electrostatic distribution in neutral or singly charged PAH's is reproduced well using a fluctuating charges analysis, which provides an adequate description of the multipolar distribution. Global optimization is performed using a variety of methods, including basin-hopping and parallel tempering Monte Carlo. We find evidence that stacking the PAH molecules generally yields the most stable motif. A structural transition between one-dimensional stacks and three-dimensional shapes built from mutiple stacks is observed at larger sizes, and the threshold for this transition increases with the size of the monomer. Larger aggregates seem to evolve toward the packing observed for benzene in bulk.Difficulties met in optimizing these clusters are analysed in terms of the strong anisotropy of the molecules. We also discuss segregation in heterogeneous clusters and vibrational properties in the context of astrophysical observations.
description: 12 pages, 7 figures
title: Analyse der Entwicklung einer technologischen Innovation in Bezug auf die allgemeinen Aspekte des Innovationsprozesses, anhand von Smart-Parking-Konzepten
Creators: name: Stigliz, Philipp
Publisher: name: TU Wien
Year: 2018
Subjects: subject: smart parking
subject: innovation
subject: smart parking
subject: innovation

description: Richtiges Innovationsmanagement ist für den Erfolg neuer Ideen essentiell, weshalb die Bedeutung dieser Disziplin signifikant gestiegen ist. Damit einhergehend hat auch die Forschung an Innovationsprozessen zugenommen, woraus eine Vielzahl an theoretischen Ansätzen entstand. Da jedoch Theorie und Praxis in vielen Anwendungen voneinander abweichen können, gilt es im Zuge dieser Arbeit zu untersuchen, welche Rolle die theoretischen Konzepte des Innovationsmanagements im tatsächlichen Entwicklungsprozess spielen. Dazu wird der Innovationsprozess eines konkreten Beispiels an der theoretischen Vorgehensweise verglichen. Auf Grund der wachsenden Bedeutung und der innovativen Technologie ist Aware3D, ein von Siemens entwickeltes Smart-Parking System, als Betrachtungsobjekt gewählt worden. Aus der detaillierten Gegenüberstellung von Theorie und Praxis des Innovationsprozesses können klare Parallelen beider Disziplinen erkannt werden, wodurch die Bedeutung der theoretischen Sichtweisen im Innovationsmanagement sichtbar wird. Speziell der Einfluss zukünftiger Trends und Veränderungen auf den Entwicklungsprozess und die Innovation spielt dabei eine entscheidende Rolle und wird deshalb separat analysiert.
description: Innovation management is crucial for the success of new ideas, which is why these management techniques grow more and more important. Along with this trend, the scientific research of innovation processes increased as well, resulting in a variety of theoretical models. Because theory and practice are often considered separate disciplines, this thesis aims on reviewing, how important the theoretical concepts of innovation management in the actual development process are. This analysis is achieved through comparing theoretical models to the actual development process of Aware3D. This smart-parking system, developed by Siemens, was chosen for its increasing social importance and innovative technology. By looking at the progress of Aware3D in detail, many similarities between theoretic and practical approach on innovation management are visible. Especially the influence of future developments on the development and status of innovations is a significant aspect of this analysis and will therefore be analyzed separately.
Design and implementation of a voice-driven animation system
Creators: name: Wang, Zhijin
Publisher: name: University of British Columbia
Year: 2010

description: This thesis presents a novel multimodal interface for directing the actions of computer animated characters and camera movements. Our system can recognize human voice input combined with mouse pointing to generate desired character animation based on motion capture data. We compare our voice-driven system with a button-driven animation interface that has equivalent capabilities. An informal user study has indicated that our voice-user interface (VUI) is faster and simpler for the users than traditional graphical user interface (GUI). The advantage of VUI is more obvious when creating complex and high-detailed character animation. Applications for our system include creating computer character animation in short movies, directing characters in video games, storyboarding for film or theatre, and scene reconstruction.
High-resolution Imaging of the OH Megamaser Emission in IRAS12032+1707 and IRAS14070+0525
Creators: name: Pihlstrom, Y. M.
name: Baan, W. A.
name: Darling, J.
name: Klockner, H. -R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present results from VLBA observations of the 1667 and 1665 MHz OH lines in the two OH megamaser galaxies IRAS12032+1707 and IRAS14070+0525. For IRAS12032+1707 we also present Arecibo HI absorption data. Almost all OH emission previously detected by single dish observations has been recovered in IRAS12032+1707 and is found on a compact scale of <100 pc. The emission shows an ordered velocity field that is consistent with a single disk. However, the data is also consistent with a scenario including two physically different gas components. We explore this possibility, in which the two strongest and most blueshifted maser features are identified as the tangent points of a circumnuclear torus. The redshifted maser features would be extended in a direction perpendicular to the torus, which is in the direction of the merger companion. Thus, redshifted emission could be associated with an inflow triggered by a tidal interaction. HI absorption covers the velocities of the redshifted maser emission, suggesting a common origin. In the second source, IRAS14070+0525, a large fraction of the OH emission is resolved out with the VLBA. We find no significant evidence of an ordered velocity field in this source, but these results are inconclusive due to a very low signal-to-noise ratio.
description: 10 pages, 7 Postscript figures, accepted by ApJ
Controllable quantum spin precession by Aharonov-Casher phase in conducting ring
Creators: name: Shen, Shun-Qing
name: Li, Zhi-Jian
name: Ma, Zhongshui
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate quantum spin transport in a structure of conducting ring, embedded in textured electric field, with two leads, and obtain an exact solution for the problem. The spin precession induced by the Aharonov-Casher phase is studied. It is shown that the spin-polarized current and its polarizability can be controlled by the electric field. As a result the polarizability is a function of the geometric phase which originates from the spin-orbital interaction in the ring. 72.25.-b, 03.65.Vf
description: 10 pages, 4 figures
Diffractive photoproduction of opposite-charge pseudoscalar meson pairs at high energies
Creators: name: Szczurek, Antoni
name: Szczepaniak, Adam P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate the cross section for diffractive photoproduction of opposite-charge pseudoscalar meson pairs $M^+M^- = π^+ π^-$, $K^+ K^-$, $D^+ D^-$ and $B^+ B^-$ in a broad range of center-of-mass energies relevant for GlueX/Hall D, FOCUS, COMPASS and HERA experiments. In the case of $π^+π^-$ production we find that the interference of the $ρ^0$ resonance and the two-pion continuum leads to a considerable deformation of the shape of $ρ^0$ in agreement with the data from the ZEUS collaboration. We also discuss the spectral shape of the $ρ^0$ as a function of the momentum transfer and the contribution of higher partial waves to the $π^+π^-$ mass spectrum. We predict a sizeable energy-dependent forward-backward asymmetry in the Gottfried-Jackson frame. For the heavy meson production we find that the cross section for diffractive production increases much slower than the one for open charm or bottom production. We discuss lower and upper limits for the cross sections for diffractive production of $D^+ D^-$ and $B^+ B^-$ pairs, which we find can be as large as 10% of the open flavor production.
description: 14 pages, 19 figures
Additional file 4 of Humanization of care in pediatric wards: differences between perceptions of users and staff according to department type
Creators: name: Mandato, C.
name: M. A. Siano
name: A. G. E. De Anseris
name: M. Tripodi
name: G. Massa
name: R. De Rosa
name: M. Buffoli
name: A. Lamanna
name: P. Siani
name: P. Vajro
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases

description: Additional file 4 Table S3.Comparison between the degree of humanization existing and perceived, in the seven hospital wards enrolled.
title: From Inbreeding to Admixture: How the Diverse Consequences of Gene Flow Shape Evolutionary Dynamics and Population Viability
Creators: name: Springer, Amy L.
Publisher: name: Utah State University
Year: 2024

description: When Homo sapiens traveled out of Africa and interbred with the Neanderthals of Europe, human genes spread into the Neanderthal population. Likewise, genes from Neanderthals spread into the human genome—genes humans still carry to this day. The process whereby genetic material from one population is spread to another is known as gene flow. Gene flow—or the absence thereof—can have critical consequences for a population’s health and survival. On one hand, if no gene flow occurs, mating among close relatives can lead to high levels of inbreeding. Inbreeding can have devastating consequences for the health of populations, in some cases even leading to extinction. On the other extreme, gene flow between distantly-related populations or species can result in hybridization, also known as admixture. The evolutionary consequences of admixture vary widely. While some admixture events have negative consequences and result in an evolutionary dead end (i.e. crossing a horse and a donkey to produce a sterile mule), other admixture events improve population health and survival (i.e. when mixed-breed dogs show greater genetic health than their purebred parents, an outcome colloquially known as “hybrid vigor”). Understanding the varied effects of gene flow is critical to understanding evolution: patterns of gene flow can affect a population’s extinction risk, determine whether or not a population will successfully adapt to a changing environment, and can even alter how well we can predict evolutionary change. In this dissertation, I explored how inbreeding, environmental stress, barriers to gene flow, and admixture affect evolutionary outcomes and conservation risk in insects. Specifically, I showed that (1) the combination of heat stress and a poor food source interact non-additively to increase the severity of inbreeding depression in seed beetles (Callosobruchus maculatus), (2) barriers to gene flow (i.e. rivers, mountains) have shaped patterns of genetic structure and genetic health in the endemic Hayden’s ringlet butterfly (Coenonympha haydenii), and (3) admixture among populations of seed beetles alters both their ability to survive and adapt to a novel, poor food source and our ability to predict evolutionary change at a genomic level.
Evidence that 1I/2017 U1 (`Oumuamua) was composed of molecular hydrogen ice
Creators: name: Seligman, Darryl
name: Laughlin, Gregory
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: `Oumuamua (I1 2017) was the first macroscopic ($l\sim100\,{\rm m}$) body observed to traverse the inner solar system on an unbound hyperbolic orbit. Its light curve displayed strong periodic variation, and it showed no hint of a coma or emission from molecular outgassing. Astrometric measurements indicate that 'Oumuamua experienced non-gravitational acceleration on its outbound trajectory, but energy balance arguments indicate this acceleration is inconsistent with a water ice sublimation-driven jet of the type exhibited by solar system comets. We show that all of `Oumaumua's observed properties can be explained if it contained a significant fraction of molecular hydrogen (H$_{2}$) ice. H$_{2}$ sublimation at a rate proportional to the incident solar flux generates a surface-covering jet that reproduces the observed acceleration. Mass wasting from sublimation leads to monotonic increase in the body axis ratio, explaining `Oumuamua's shape. Back-tracing `Oumuamua's trajectory through the Solar System permits calculation of its mass and aspect ratio prior to encountering the Sun. We show that H$_{2}$-rich bodies plausibly form in the coldest dense cores of Giant Molecular Clouds, where number densities are of order $n\sim10^5$, and temperatures approach the $T=3\,{\rm K}$ background. Post-formation exposure to galactic cosmic rays implies a $τ\sim 100$ Myr age, explaining the kinematics of `Oumuamua's inbound trajectory.
description: Accepted for publication in ApJL, 8 pages, 2 figures. All software is available at https://github.com/DSeligman/Oumuamua_Hydrogen
A Two-Threshold Model for Scaling Laws of Non-Interacting Snow Avalanches
Creators: name: Faillettaz, Jerome
name: Louchet, Francois
name: Grasso, Jean-Robert
Publisher: name: arXiv
Year: 2004
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The sizes of snow slab failure that trigger snow avalanches are power-law distributed. Such a power-law probability distribution function has also been proposed to characterize different landslide types. In order to understand this scaling for gravity driven systems, we introduce a two-threshold 2-d cellular automaton, in which failure occurs irreversibly. Taking snow slab avalanches as a model system, we find that the sizes of the largest avalanches just preceeding the lattice system breakdown are power law distributed. By tuning the maximum value of the ratio of the two failure thresholds our model reproduces the range of power law exponents observed for land-, rock- or snow avalanches. We suggest this control parameter represents the material cohesion anisotropy.
description: accepted PRL
Additional file 1 of Relaxed fibronectin: a potential novel target for imaging endometriotic lesions
Creators: name: Trachsel, Belinda
name: Imobersteg, Stefan
name: Valpreda, Giulia
name: Singer, Gad
name: Grabherr, Regula
name: Ormos, Mark
name: Burger, Irene A.
name: Kubik-Huch, Rahel A.
name: Schibli, Roger
name: Vogel, Viola
name: Béhé, Martin
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Cancer

description: Additional file 1: Contains raw data of biodistribution studies, a complete set of SPECT/CT images, images and analysis parameters from fluorescence microscopy as well as supplementary information on HPLC chromatography and animal experiments.
Generalising Group Algebras
Creators: name: Grundling, Hendrik
Publisher: name: arXiv
Year: 2004
Subjects: subject: Operator Algebras (math.OA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 46L05, 22D25, 43A10

description: This paper has been withdrawn by the author, since the main result, the existence and uniqueness theorem for host algebras, Theorem 3.4, is wrong for the following reasons. In Definition 3.1 we wanted to generalise the concept of an open projection away from universal enveloping Von Neumann algebras, so that it makes sense for any Von Neumann algebra N. We defined a projection P in N as open, if N.P is the intersection of left kernels of normal states of N. Unfortunately, every projection P in N will satisfy this criterion by Theorem 3.6.11 of Pedersen (C*-algebras and their automorphism groups). Hence if N = A" for a C*-algebra A, then this definition of an open projection does not define the usual open projections (cf. Proposition 3.11.9 in Pedersen). Hence the proof of Theorem 3.4, which rests on this, fails.
description: This paper has been withdrawn
Gauge invariance of dimension two condensate in Yang-Mills theory
Creators: name: Slavnov, A. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Gauge independence of dimension two condensate in Yang-Mills theory is demonstrated by using a noncommutative theory technique.
description: 7 pages
REDES SOCIALES Y DESARROLLO DE INNOVACIONES: UNA APROXIMACIÓN A LOCALIDADES DE LA MESETA COMITECA
Creators: name: Gomez Carreto, Tlillalcapatl
name: Gomez Carreto, Tlillalcapatl
Publisher: name: Unknown
Year: 2013
Subjects: subject: Agribusiness
subject: Innovation
subject: social networks
subject: protected agriculture
subject: tomato
subject: comiteca plateau
subject: knowledge.

description: The theoretical approach to the research project entitled "Protected agriculture and processes of innovation in the comiteca plateau" is mainly based on the actors perspective. The general notion of the term innovation refers to the ideas new and improvements, both with positive connotations and which are closely linked to the development of man as member of the human species. The improvements that man has constantly incorporated into their way of life in different areas undoubtedly mark important differences in the quality of life. It is possible to think about the prehistoric era men and these imagining how changes could be introduced in order to get protected from bad weather or get food. Precisely, human development takes place because of thinking but above all, because of implementing new ideas. Either small improvements and the articulation of these or a radical single change gives rise to processes of thinking also involving actions, assimilations, acceptances, resistances or an open rejection to something that means adjustments to regular processes performed by man. The adjustments are linked to social, cultural, politics and economics areas, the last one is the area where the research project is circumscribed. Contemporary discussions related to the concept innovation involve aspects such as local, regional and national innovation systems; knowledge and its construction; coding processes; actors cognitive schema and so on. This paper emphasizes the importance of evolution in the meaning of the term innovation once organization is incorporated as an aspect that allows to give an account of new and improved organizational dynamics in order to achieve agreements linked to an economic activity.
Feature importance in mobile malware detection
Creators: name: Kouliaridis, Vasileios
name: Kambourakis, Georgios
name: Peng, Tao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: The topic of mobile malware detection on the Android platform has attracted significant attention over the last several years. However, while much research has been conducted toward mobile malware detection techniques, little attention has been devoted to feature selection and feature importance. That is, which app feature matters more when it comes to machine learning classification. After succinctly surveying all major, dated from 2012 to 2020, datasets used by state-of-the-art malware detection works in the literature, we analyse a critical mass of apps from the most contemporary and prevailing datasets, namely Drebin, VirusShare, and AndroZoo. Next, we rank the importance of app classification features pertaining to permissions and intents using the Information Gain algorithm for all the three above-mentioned datasets.
description: improved our experiments and discussion
Additional file 3 of Humanization of care in pediatric wards: differences between perceptions of users and staff according to department type
Creators: name: Mandato, C.
name: M. A. Siano
name: A. G. E. De Anseris
name: M. Tripodi
name: G. Massa
name: R. De Rosa
name: M. Buffoli
name: A. Lamanna
name: P. Siani
name: P. Vajro
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases

description: Additional file 3 Table S1. Pediatric wards enrolled, categorized in 3 different categories. Table S2. Weight of the different humanization indicators according to the Listening to people to Cure people (LpCp)-tool
COMPETITIVIDAD DE LA HIGUERILLA (Ricinus communis) PARA BIOCOMBUSTIBLE EN RELACIÓN A LOS CULTIVOS ACTUALES EN EL EDO. DE OAXACA, MÉXICO
Creators: name: Rodriguez Hernandez, Rafael
name: Zamarripa Colmenero, Alfredo
name: Rodriguez Hernandez, Rafael
name: Zamarripa Colmenero, Alfredo
Publisher: name: Unknown
Year: 2013
Subjects: subject: Agribusiness
subject: Higuerilla
subject: biofuels
subject: competitiveness and profitability.

description: Before the current problem of global warming by high emissions of CO to the atmosphere, as 2 well as the scarcity and cost of fossil energy such as oil, coal and gas, has become important search and use of alternate sources of fuel. The main plant species that can provide biofuels are cane sugar, sorghum, corn, among others for ethanol; soybean, sunflower and groundnut, among others for biodiesel; However the use of food grains has caused higher prices of food, so it is required to seek alternative species to produce biofuels that do not compete with the staple crops. One of the promising species by its high genetic diversity and production capacity of oil of excellent quality as an input for biodiesel is Higuerilla Ricinus communis. Mexico, agroecological characteristics has good potential to cultivate this species in an area of almost four million hectares. The State of Oaxaca has an area of great potential for the cultivation of 183,000 hectares, where there are already other crops. The objective of this work was to determine the competitiveness of Higuerilla purposes of biofuel in the Central Valleys of Oaxaca region, compared with crops which are currently carried out. In 2009, through interviews with producers in the District of Zaachila, they collected and quantified the technologies of the producers and conducted a comparative financial analysis through the Policy Analysis Matrix (PAM). The indicators were generated per hectare of total income, total cost, net profit, added value and relation of private cost (RPC). The results indicated the Higuerilla under a system of intercropping with maize, was moderately competitive and profitable with a 0.68 RPC but was overtaken by the bean from temporary with a RPC of 0.4 and maize in irrigation with a RPC of 0.5. This was due to low performance in average stood at 850 kilograms per hectare and the low selling price of five pesos per kilogram. The competitiveness of the higuerilla at producer level showed a trend to insensitivity to changes in the current price of sale in the local market and retrieved current performance, for it can be concluded that in the current conditions of production, the Higuerilla is moderately competitive and profitable. To improve competitiveness, there are two tracks that can be complementary, one of them refers to the momentum of improvements in technology to the production system to significantly increase the productivity and the second relates to the establishment of a sales price of the raw material than the one presented in the local market.
f(R) theories of gravity in Palatini approach matched with observations
Creators: name: Capozziello, S.
name: Cardone, V. F.
name: Francaviglia, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the viability of f(R) theories in the framework of the Palatini approach as solutions to the problem of the observed accelerated expansion of the universe. Two physically motivated popular choices for f(R) are considered: power law, f(R) = βR^n, and logarithmic, f(R) = α\ln{R}. Under the Palatini approach, both Lagrangians give rise to cosmological models comprising only standard matter and undergoing a present phase of accelerated expansion. We use the Hubble diagram of type Ia Supernovae and the data on the gas mass fraction in relaxed galaxy clusters to see whether these models are able to reproduce what is observed and to constrain their parameters. It turns out that they are indeed able to fit the data with values of the Hubble constant and of the matter density parameter in agreement with some model independent estimates, but the today deceleration parameter is higher than what is measured in the concordance LambdaCDM model.
description: 14 pages, 8 figures, submitted to Physical Review D
title: Collagen fibril orientation and modulus mapping of osteonal cortical human bone
Creators: name: Amraish, Nedaa
Publisher: name: TU Wien
Year: 2018
Subjects: subject: Knochen
subject: Mechanische Eigenschaften
subject: Bone
subject: Mechanical Properties

description: Bone mechanical properties at the tissue level are affected due to changes of bone components and structure at the nanoscale. Studying bone structure and material properties at various length scales is therefore important to attain a better understanding of the origin of bone mechanical properties and discern the origin changes with age and disease as well as their influence and impact on bone fracture. Cantilever-based nanoindentation Atomic Force Microscopy offers a possibility to interrogate bone mechanical properties at the nanoscale. It has previously been suggested that the heterogeneity of bone at the lamellar level may be a critical factor influencing bone fracture toughness. Within this thesis this suggestion was further investigated. Thirty bone samples from the human femur with existing fracture toughness measurements were obtained from a collaborator and were investigated using Atomic Force Microscopy in cantilever-based nanoindentation mode and Second Harmonic Generation Microscopy to interrogate collagen fibril orientation. The heterogeneity in indentation modulus between osteonal lamellae showed a potential statistically non-significant trend due to age. Similarly, collagen fibril orientation distributions did not change significantly with age. However, the Atomic Force Microscope imaging of osteonal lamellae revealed a distinctive lamellar structure (height topography) even when sampled were immersed in Phosphate-Buffered Saline for more than 24h in contrast to a previous study. Most importantly fracture initiation toughness and resistance to crack propagation correlate significantly with high degree of nanoelasticity heterogeneity between osteonal lamellae and interlamellar areas. However, fracture toughness parameters do not correlate at a significant level with the collagen fibril orientation distributions. This shows that indeed the modulation of stiffness at the lamellar level is influencing fracture toughness, but it does not seem to depend on age.