cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Strongly parity-mixed superconductivity in Rashba-Hubbard model
Creators: name: Nogaki, Kosuke
name: Yanase, Youichi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Heterostructures containing strongly correlated electron systems provide a platform to clarify interplay of electron correlation and Rashba spin-orbit coupling in unconventional superconductors. Motivated by recent fabrication of artificially-engineered heavy fermion superlattices and high-temperature cuprate superconductors, we conduct a thorough study on superconductivity in Rashba-Hubbard model. In contrast to previous weak coupling approaches, we employ fluctuation-exchange approximation to describe quantum critical magnetic fluctuations and resulting superconductivity. As a result, robust Fermi surfaces against magnetic fluctuations, incommensurate spin fluctuations, and a strongly parity-mixed superconducting phase are demonstrated in a wide range of electron filling from type-II van Hove singularity to half-filling. We also clarify impacts of type-II van Hove singularity on magnetic fluctuations and superconductivity. Whereas the $d_{x^2-y^2}$-wave pairing always dominant, subdominant spin-triplet pairing with either $p$-wave or $f$-wave symmetry shows a comparable magnitude, especially near the type-II van Hove singularity. Our results resolve unsettled issues on strongly correlated Rashba systems and uncover candidate systems of nonreciprocal transport and topological superconductivity.
description: 8 pages, 31 figures
806: Autograph Book 1916 (Sergt Geo. Clippingdale)
Creators: name: Project Team, Lest We Forget
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: The autograph book was my grandmother's. At the time I believe she was a cook at Holly Trees in Colchester. She collected a number of autographs from family, friends and soldiers who were in Colchester in 1916. I have over the years tried to trace the soldiers without much luck.
European Rural Development Policy Preferences
Creators: name: Hartell, Jason G.
name: Kilkenny, Maureen
name: Swinnen, Johan F.M.
name: Hartell, Jason G.
name: Kilkenny, Maureen
name: Swinnen, Johan F.M.
Publisher: name: Unknown
Year: 2002
Subjects: subject: Community/Rural/Urban Development
subject: Rural development
subject: policy
subject: preferences

description: This paper presents the results of a survey about policy preferences collected from agricultural economists at an EAAE Seminar on rural development policy experiences. It documents the diversity in rural development problems and favored tactics across Europe.
Interaction-Enhanced Group Velocity of Bosons in the Flat Band of an Optical Kagome Lattice
Creators: name: Leung, Tsz-Him
name: Schwarz, Malte N.
name: Chang, Shao-Wen
name: Brown, Charles D.
name: Unnikrishnan, Govind
name: Stamper-Kurn, Dan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Geometric frustration of particle motion in a kagome lattice causes the single-particle band structure to have a flat s-orbital band. We probe this band structure by exciting a Bose-Einstein condensate into excited Bloch states of an optical kagome lattice, and then measuring the group velocity through the atomic momentum distribution. We find that interactions renormalize the band structure of the kagome lattice, greatly increasing the dispersion of the third band that, according to non-interacting band theory, should be nearly non-dispersing. Measurements at various lattice depths and gas densities agree quantitatively with predictions of the lattice Gross-Pitaevskii equation, indicating that the observed distortion of band structure is caused by the disortion of the overall lattice potential away from the kagome geometry by interactions.
Minimal resources for linear optical one-way computing
Creators: name: Kieling, K.
name: Gross, D.
name: Eisert, J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We address the question of how many maximally entangled photon pairs are needed in order to build up cluster states for quantum computing using the toolbox of linear optics. As the needed gates in dual-rail encoding are necessarily probabilistic with known optimal success probability, this question amounts to finding the optimal strategy for building up cluster states, from the perspective of classical control. We develop a notion of classical strategies, and present rigorous statements on the ultimate maximal and minimal use of resources of the globally optimal strategy. We find that this strategy - being also the most robust with respect to decoherence - gives rise to an advantage of already more than an order of magnitude in the number of maximally entangled pairs when building chains with an expected length of L=40, compared to other legitimate strategies. For two-dimensional cluster states, we present a first scheme achieving the optimal quadratic asymptotic scaling. This analysis shows that the choice of appropriate classical control leads to a very significant reduction in resource consumption.
description: 5 pages, 2 figures, title changed, presentation improved, bounds improved, minor errors corrected, references updated
MULTI-CRITERIA ANALYSIS OF FACTORS USE LEVEL: THE CASE OF WATER FOR IRRIGATION
Creators: name: Gomez-Limon, Jose Antonio
name: Riesgo, Laura
name: Arriaza Balmón, Manuel
name: Gomez-Limon, Jose Antonio
name: Riesgo, Laura
name: Arriaza Balmón, Manuel
Publisher: name: Unknown
Year: 2003
Subjects: Resource /Energy Economics and Policy

description: In this paper we present a methodology to analyse input use in the agricultural sector. The novelty of the theoretical model explained is that it has been developed considering a multi-criteria environment. Thus, the optimal input use condition is determined by the assessment of "multi-attribute utility" and "multi-attribute marginal utility". We show how the approach adopted in this paper is a generalization of the single-attribute expected utility theory. The theoretical model developed is further implemented in an empirical application that studies water for irrigation use as a particular case. Results show how multi-attribute utility functions elicited for a sample of 52 irrigators explain differences on irrigation water use in relative homogenous agricultural systems, albeit exhibiting similar water partial utility functions. We conclude that these differences come from the dissimilar weights that farmers attached to each attribute in the aggregate utility function. The irrigated area considered as case study is located in North-western Spain.
786: Autograph book from 1916 (Bombd Holliday)
Creators: name: Project Team, Lest We Forget
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: The autograph book was my grandmother's. At the time I believe she was a cook at Holly Trees in Colchester. She collected a number of autographs from family, friends and soldiers who were in Colchester in 1916. I have over the years tried to trace the soldiers without much luck.
Metric-Connection Geometries on Pre-Leibniz Algebroids: A Search for Geometrical Structure in String Models
Creators: name: Dereli, Tekin
name: Dogan, Keremcan
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The metric-affine and generalized geometries, respectively, are arguably the appropriate mathematical frameworks for Einstein's theory of gravity and the low-energy effective massless oriented closed bosonic string field theory. In fact, mathematical structures in a metric-affine geometry are written on the tangent bundle, which is itself a Lie algebroid; whereas those in generalized geometries introduced as the basis of double field theories, are written on Courant algebroids. The Lie, Courant and the higher Courant algebroids used in exceptional field theories, are all special cases of pre-Leibniz algebroids. Provided with some additional ingredients, the construction of such geometries can all be carried over to regular pre-Leibniz algebroids. We define below the notions of locality structures and locality projectors, which are some such necessary ingredients. In terms of these structures, $E$-metric-connection geometries are constructed with (possibly) a minimum number of assumptions. Certain small gaps in the literature are also filled as we go along. $E$-Koszul connections, as a generalization of Levi-Civita connections, are going to be defined and shown to be helpful for some results including a simple generalization of the fundamental theorem of Riemannian geometry. We also show that metric-affine geometries can be constructed in a unique way as special cases of $E$-metric-connection geometries. Moreover, generalized geometries are shown to follow as special cases, and various properties of linear generalized-connections are proven in the present framework. Similarly, uniqueness of the locality projector in the case of exact Courant algebroids is proven; a result that explains why the curvature operator, defined with a projector in the double field theory literature is a necessity.
The Phenomenology of Dvali-Gabadadze-Porrati Cosmologies
Creators: name: Lue, Arthur
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Cosmologists today are confronted with the perplexing reality that the universe is currently accelerating in its expansion. Nevertheless, the nature of the fuel that drives today's cosmic acceleration is an open and tantalizing mystery. There exists the intriguing possibility that the acceleration is not the manifestation of yet another mysterious ingredient in the cosmic gas tank (dark energy), but rather our first real lack of understanding of gravity itself, and even possibly a signal that there might exist dimensions beyond that which we can currently observe. The braneworld model of Dvali, Gabadadze and Porrati (DGP) is a theory where gravity is altered at immense distances by the excruciatingly slow leakage of gravity off our three-dimensional Universe and, as a modified-gravity theory, has pioneered this line of investigation. I review the underlying structure of DGP gravity and those phenomenological developments relevant to cosmologists interested in a pedagogical treatment of this intriguing model.
description: 72 pages, 22 figures. Invited review to be published in Physics Reports
Ponder: Online Prediction of Task Memory Requirements for Scientific Workflows
Creators: name: Lehmann, Fabian
name: Bader, Jonathan
name: De Mecquenem, Ninon
name: Wang, Xing
name: Bountris, Vasilis
name: Friederici, Florian
name: Leser, Ulf
name: Thamsen, Lauritz
Publisher: name: arXiv
Year: 2024
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Scientific workflows are used to analyze large amounts of data. These workflows comprise numerous tasks, many of which are executed repeatedly, running the same custom program on different inputs. Users specify resource allocations for each task, which must be sufficient for all inputs to prevent task failures. As a result, task memory allocations tend to be overly conservative, wasting precious cluster resources, limiting overall parallelism, and increasing workflow makespan.
 In this paper, we first benchmark a state-of-the-art method on four real-life workflows from the nf-core workflow repository. This analysis reveals that certain assumptions underlying current prediction methods, which typically were evaluated only on simulated workflows, cannot generally be confirmed for real workflows and executions. We then present Ponder, a new online task-sizing strategy that considers and chooses between different methods to cater to different memory demand patterns. We implemented Ponder for Nextflow and made the code publicly available. In an experimental evaluation that also considers the impact of memory predictions on scheduling, Ponder improves Memory Allocation Quality on average by 71.0% and makespan by 21.8% in comparison to a state-of-the-art method. Moreover, Ponder produces 93.8% fewer task failures.
Non-Perturbative Instabilities as a Solution of the Cosmological Moduli Problem
Creators: name: Shuhmaher, Natalia
name: Brandenberger, Robert
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It is widely accepted that moduli in the mass range 10eV - $10^4$GeV which start to oscillate with an amplitude of the order of the Planck scale either jeopardize successful predictions of nucleosynthesis or overclose the Universe. It is shown that the moduli problem can be relaxed by making use of parametric resonance. A new non-perturbative decay channel for moduli oscillations is discussed. This channel becomes effective when the oscillating field results in a net negative mass term for the decay products. This scenario allows for the decay of the moduli much before nucleosynthesis and, therefore, leads to a complete solution of the cosmological moduli problem.
description: 8 pages, no figures
CONSUMERS' RESISTANCE TO GENETICALLY MODIFIED FOODS IN HIGH INCOME COUNTRIES: THE ROLE OF INFORMATION IN AN UNCERTAIN ENVIRONMENT
Creators: name: Huffman, Wallace E.
name: Rousu, Matthew C.
name: Shogren, Jason F.
name: Tegene, Abebayehu
name: Huffman, Wallace E.
name: Rousu, Matthew C.
name: Shogren, Jason F.
name: Tegene, Abebayehu
Publisher: name: Unknown
Year: 2003
Subjects: Consumer/Household Economics

description: This paper examines the market characteristics that push consumers in high income countries to resist GM foods, with an emphasis on negative information from environmental groups and third-party, verifiable information. For this study, unique data were collected from adult consumers in the United States who participated in laboratory auctions of three food types with randomly assigned labeling and information treatments. Using U.S. consumers is important because U.S. consumers are generally supportive of GM foods and free from the BSE "food scare" fears and bias towards "natural" that are hypothesized to lead Europeans to reject GM foods. Key findings are that negative GM-product information supplied by environmental groups pushes some consumers out of the market for GM products and increases the probability that all consumers are out of the market for GM-foods. Verifiable information dampens the effectiveness of negative GM-product information. An important finding is that negative information on GM foods from environmental groups, an interested source, can stymie technology adoption in both rich and poor countries, and increase the probability of malnutrition and starvation in poor countries because of both the failure to accept food aid and new GM-technology.
781: Papa Hendrie's War
Creators: name: Project Team, Lest We Forget
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: I am not sure of the true story but years ago I remember my Dad telling me that Papa nipped outside for a sneaky ciggie, one flick of a match and the German saw him. One missing thumb later and he was no use as a gunner and honourably discharged from the Army. He came home and married my Nana.
Stationary and Closed Rainbow subsets
Creators: name: Garti, Shimon
name: Zhang, Jing
Publisher: name: arXiv
Year: 2020
Subjects: subject: Logic (math.LO)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We study the structured rainbow Ramsey theory at uncountable cardinals. When compared to the usual rainbow Ramsey theory, the variation focuses on finding a rainbow subset that not only is of a certain cardinality but also satisfies certain structural constraints, such as being stationary or closed in its supremum. In the process of dealing with cardinals greater than $ω_1$, we uncover some connections between versions of Chang's Conjectures and instances of rainbow Ramsey partition relations, addressing a question raised in \cite{zhang}.
description: 20 pages
CHILD GROWTH, SHOCKS, AND FOOD AID IN RURAL ETHIOPIA
Creators: name: Yamano, Takashi
name: Alderman, Harold
name: Christiaensen, Luc J.M.
name: Yamano, Takashi
name: Alderman, Harold
name: Christiaensen, Luc J.M.
Publisher: name: Unknown
Year: 2003
Subjects: Food Security and Poverty
Labor and Human Capital

description: Over the past decades child stunting in Ethiopia has persisted at alarming rates. While the country experienced several droughts during this period, it also received enormous amounts of food aid, leading some to question the effectiveness of food aid in reducing child malnutrition. Using nationally representative household surveys from 1995-96 and controlling for program placement, we find that children between 6 and 24 months experienced about 0.9 cm less growth over a six-month period in communities where half the crop area was damaged compared to those without crop damage. Food aid was also found to have a substantial effect on growth of children in this age group. Moreover, on average the total amount of food aid appeared to be sufficient to protect children against plot damage, an encouraging sign that food aid can act as an effective insurance mechanism, though its cost effectiveness needs further investigation.
788: Autograph Book from 1916 (Dr Wm Gibson)
Creators: name: Project Team, Lest We Forget
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: The autograph book was my grandmother's. At the time I believe she was a cook at Holly Trees in Colchester. She collected a number of autographs from family, friends and soldiers who were in Colchester in 1916. I have over the years tried to trace the soldiers without much luck.
Variability of the Great Disk Shadow in Serpens
Creators: name: Pontoppidan, Klaus M.
name: Green, Joel D.
name: Pauly, Tyler A.
name: Salyk, Colette
name: DePasquale, Joseph
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present multi-epoch Hubble Space Telescope imaging of the Great Disk Shadow in the Serpens star-forming region. The near-infrared images show strong variability of the disk shadow, revealing dynamics of the inner disk on time scales of months. The Great Shadow is projected onto the Serpens reflection nebula by an unresolved protoplanetary disk surrounding the young intermediate-mass star SVS2/CK3/EC82. Since the shadow extends out to a distance of at least 17,000 au, corresponding to a light travel time of 0.24 years, the images may reveal detailed changes in the disk scale height and position angle on time scales as short as a day, corresponding to the angular resolution of the images, and up to the 1.11 year span between two observing epochs. We present a basic retrieval of temporal changes in the disk density structure, based on the images. We find that the inner disk changes position angle on time scales of months, and that the change is not axisymmetric, suggesting the presence of a non-axisymmetric dynamical forcing on $\sim$1\,au size scales. We consider two different scenarios, one in which a quadrupolar disk warp orbits the central star, and one in which an unequal-mass binary orbiting out of the disk plane displaces the photo-center relative to the shadowing disk. Continued space-based monitoring of the Serpens Disk Shadow is required to distinguish between these scenarios, and could provide unique, and detailed, insight into the dynamics of inner protoplanetary disks not available through other means.
description: Accepted for publication in the Astrophysical Journal
A New Limit on the Neutrinoless DBD of 130Te
Creators: name: Arnaboldi, C.
name: Artusa, D. R.
name: Avignone, F. T.
name: Balata, M.
name: Bandac, I.
name: Barucci, M.
name: Beeman, J. W.
name: Brofferio, C.
name: Bucci, C.
name: Capelli, S.
name: Carbone, L.
name: Cebrian, S.
name: Cremonesi, O.
name: Creswick, R. J.
name: de Waard, A.
name: Farach, H. A.
name: Fiorini, E.
name: Frossati, G.
name: Guardincerri, E.
name: Giuliani, A.
name: Gorla, P.
name: Haller, E. E.
name: McDonald, J.
name: Norman, E. B.
name: Nucciotti, A.
name: Olivieri, E.
name: Pallavicini, M.
name: Palmieri, E.
name: Pasca, E.
name: Pavan, M.
name: Pedretti, M.
name: Pessina, G.
name: Pirro, S.
name: Previtali, E.
name: Risegari, L.
name: Rosenfeld, C.
name: Sangiorgio, S.
name: Sisti, M.
name: Smith, A. R.
name: Torres, L.
name: Ventura, G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report the present results of CUORICINO a cryogenic experiment on neutrinoless double beta decay (DBD) of 130Te consisting of an array of 62 crystals of TeO2 with a total active mass of 40.7 kg. The array is framed inside of a dilution refrigerator, heavily shielded against environmental radioactivity and high-energy neutrons, and operated at a temperature of ~8 mK in the Gran Sasso Underground Laboratory. Temperature pulses induced by particle interacting in the crystals are recorded and measured by means of Neutron Transmutation Doped thermistors. The gain of each bolometer is stabilized with voltage pulses developed by a high stability pulse generator across heater resistors put in thermal contact with the absorber. The calibration is performed by means of two thoriated wires routinely inserted in the set-up. No evidence for a peak indicating neutrinoless DBD of 130Te is detected and a 90% C.L. lower limit of 1.8E24 years is set for the lifetime of this process. Taking largely into account the uncertainties in the theoretical values of nuclear matrix elements, this implies an upper boud on the effective mass of the electron neutrino ranging from 0.2 to 1.1 eV. This sensitivity is similar to those of the 76Ge experiments.
description: 4 pages, 2 figures
Three-Dimensional Chiral Magnetization Structures in FeGe Nanospheres
Creators: name: Pathak, Swapneel Amit
name: Hertel, Riccardo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Skyrmions, spin spirals, and other chiral magnetization structures developing in materials with intrinsic Dzyaloshinsky-Moriya Interaction display unique properties that have been the subject of intense research in thin-film geometries. Here we study the formation of three-dimensional chiral magnetization structures in FeGe nanospheres by means of micromagnetic finite-element simulations. In spite of the deep sub-micron particle size, we find a surprisingly large number of distinct equilibrium states, namely, helical, meron, skyrmion, chiral-bobber and quasi-saturation state. The distribution of these states is summarized in a phase diagram displaying the ground state as a function of the external field and particle radius. This unusual multiplicity of possible magnetization states in individual nanoparticles could be a useful feature for multi-state memory devices. We also show that the magneto-dipolar interaction is almost negligible in these systems, which suggests that the particles could be arranged at high density without experiencing unwanted coupling.
description: 9 pages, 9 figures
THE EFFECTS OF TRADE UNCERTAINTY ON CHRYSANTHEMUM TRADE
Creators: name: Tsai, Hsin-Yeh
name: Woo, Rhung-Jieh
name: Tsai, Hsin-Yeh
name: Woo, Rhung-Jieh
Publisher: name: Unknown
Year: 2003
Subjects: International Relations/Trade

description: The study analyzed the effects of trade uncertainty on chrysanthemum trade between Taiwan and Japan. An econometric model comprises trade uncertainty was established and policy simulations were performed to evaluate the impacts of reducing trade uncertainty.
Superconducting thin films of (Cu,C)Ba$_2$Ca$_2$Cu$_3$O$_{9+δ}$ with zero resistance transition temperature close to 100 K
Creators: name: Ou, Meng-Jun
name: Liu, Yuecong
name: Wang, Yi
name: Wen, Hai-Hu
Publisher: name: arXiv
Year: 2024
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: High superconducting transition temperature is favorable for the applications of superconductors. Some cuprate superconductors have the transition temperatures above 100 K, such as the Hg- or Tl-based 1223 and 1234 phases, but many of them contain the toxic elements, like Hg and Tl. Meanwhile, the high anisotropy makes the vortices easy to move, thus the irreversibility magnetic field is very low in the liquid nitrogen temperature region. Here we report the successful synthesis of superconducting thin films (Cu,C)Ba$_{2}$Ca$_{2}$Cu$_3$O$_{9+δ}$ with the zero-resistance transition temperature reaching 99.7 K. The film shows a very good crystallinity with (00l) orientation. The superconducting transitions are rather sharp as revealed by both resistivity and magnetization measurements. Temperature dependent resistivity has been measured under different magnetic fields along c-axis and ab-plane, and the irreversibility lines have been achieved. The resistivity was also measured at different temperatures with the magnetic field rotated in the ac-plane, and the data can be nicely scaled by using the anisotropic Ginzburg-Landau model, yielding a temperature dependent anisotropy which varies from 17 at 110 K to 4 at 77 K. We also measured the magnetization-hysteresis-loops and calculated the critical current density through the Bean critical state model. The critical current density at 77 K is about 6$\times$10$^5$ A/cm$^2$ (zero field), thus the film may be a good candidate for the applications of superconducting cables or the high frequency superconducting filters.
description: 13 pages, 4 figures
Fruit classification using deep feature maps in the presence of deceptive similar classes
Creators: name: Dandekar, Mohit
name: Punn, Narinder Singh
name: Sonbhadra, Sanjay Kumar
name: Agarwal, Sonali
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Autonomous detection and classification of objects are admired area of research in many industrial applications. Though, humans can distinguish objects with high multi-granular similarities very easily; but for the machines, it is a very challenging task. The convolution neural networks (CNN) have illustrated efficient performance in multi-level representations of objects for classification. Conventionally, the existing deep learning models utilize the transformed features generated by the rearmost layer for training and testing. However, it is evident that this does not work well with multi-granular data, especially, in presence of deceptive similar classes (almost similar but different classes). The objective of the present research is to address the challenge of classification of deceptively similar multi-granular objects with an ensemble approach thfat utilizes activations from multiple layers of CNN (deep features). These multi-layer activations are further utilized to build multiple deep decision trees (known as Random forest) for classification of objects with similar appearance. The Fruits-360 dataset is utilized for evaluation of the proposed approach. With extensive trials it was observed that the proposed model outperformed over the conventional deep learning approaches.
INTERTEMPORAL ANALYSIS OF EMPLOYMENT DECISIONS ON AGRICULTURAL HOLDINGS IN SLOVENIA
Creators: name: Juvancic, Luka
name: Erjavec, Emil
name: Juvancic, Luka
name: Erjavec, Emil
Publisher: name: Unknown
Year: 2003
Subjects: subject: Labor and Human Capital
subject: employment decisions
subject: mobility of labour supply
subject: off-farm employment
subject: probit model

description: The paper attempts to quantify determinants influencing dynamics of employment decisions on agricultural households in Slovenia and to test specific aspects of labour reallocation during transition period by application of agricultural household model. Through the use of 1991-2000 panel data for 22,055 farm households, quantitative analysis of intertemporal employment decisions of farm holders is carried out by the use of probit techniques. Determinants tested refer to personal characteristics of reference persons (gender, age, education level, opportunity off-farm income), household characteristics (size, structure),characteristics of the agricultural holding (economic size, labour input,labour intensity) and local labour market conditions. The model results generally confirm the existing empirical evidence on asymmetrical and irreversible participation of holders at the labour market. Despite intensive restructuring of agriculture and profound changes in non-farm labour market in the analysed period, labour supply of farm holders remains rigid. Mobility of labour supply is lower than expected, which can be attributed to the importance of structural problems constraining intersectoral mobility. A marked tendency towards upkeeping of the same employment status is more distincted in the case of holders employed on the farm. A low level of labour supply mobility worsens efficiency of labour allocation on agricultural holdings in Slovenia. Elements of this problem emerge on both, supply (e.g. low level of educational and professional attainment of reference persons) and demand side of labour market (e.g. unfavourable local labour market conditions).
The Crown’s duty to consult with First Nations
Creators: name: Chartier, Mélanie
Publisher: name: University of British Columbia
Year: 2009

description: The Crown has fiduciary obligations to First Nations and must act in consequence. One of this consequence is that the Crown has a duty to consult with aboriginal peoples when it infringes aboriginal or treaty right. The thesis deals with the principles related to the Crown's duty to consult with First Nations. I elaborate on principles established by the courts and also on questions that remain unanswered to date. Those questions include when, how and with whom the consultation should be done. I also examine the situation in New Zealand, where the consultation process is a little more advanced than here in Canada and compare the principles elaborated by New Zealand courts with those existing in Canada. From the New Zealand experience, I suggest consultation guidelines to be used in Canada by the Crown and its representatives.
DIVERSIFICATION ECONOMIES AND SPECIALISATION EFFICIENCIES IN A MIXED FOOD AND COFFEE SMALLHOLDER FARMING SYSTEM IN PAPUA NEW GUINEA
Creators: name: Coelli, Tim J.
name: Fleming, Euan M.
name: Coelli, Tim J.
name: Fleming, Euan M.
Publisher: name: Unknown
Year: 2003
Subjects: Farm Management

description: Smallholder farming systems in Papua New Guinea are characterised by an integrated set of cash cropping and subsistence food cropping activities. In the Highlands provinces, the subsistence food crop sub-system is dominated by sweet potato production. Coffee dominates the cash cropping sub-system, but a limited number of food crops are also grown for cash sale. The dynamics between sub-systems can influence the scope for complementarity between, and technical efficiency of, their operations, especially in light of the seasonality of demand for household labour and management inputs within the farming system. A crucial element of these dynamic processes is diversification into commercial agricultural production, which can influence factor productivity and the efficiency of crop production where smallholders maintain a strong production base in subsistence foods. Data are used on coffee and food crop production for 18 households in the Benabena district of Eastern Highlands Province to derive technical efficiency indices for each household over two years. A stochastic input distance function approach is used to establish whether diversification economies exist and whether specialisation in coffee, subsistence food or cash food production significantly influences technical efficiency on the sampled smallholdings. Diversification economies are weakly evident between subsistence food production and both coffee and cash food production, but diseconomies of diversification are discerned between coffee and cash food production. A number of factors are tested for their effects on technical efficiency. Significant technical efficiency gains are made from diversification among broad cropping activities.
AN APPLIATION OF THE STOCHASTIC LATENT VARIABLE APPROACH TO THE CORRECTION OF SECTOR LEVEL TFP CALCULATIONS IN THE FACE OF BIASED TECHNOLOGICAL CHANGE
Creators: name: Bailey, Alastair
name: Irz, Xavier T.
name: Balcombe, Kelvin George
name: Bailey, Alastair
name: Irz, Xavier T.
name: Balcombe, Kelvin George
Publisher: name: Unknown
Year: 2003
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: Biased Technological Change
subject: Latent Variables
subject: TFP.

description: The measurement of the impact of technical change has received significant attention within the economics literature. One popular method of quantifying this impact of technical change is the use of growth accounting index numbers. However, in a recent article Nelson and Pack (1999) criticise the use of such index numbers in situations where technical change is likely to be biased in favour of one or other inputs. In particular they criticise the common approach of applying observed factor shares as proxies for partial output elasticities to weight the change in quantities which they claim are only valid under Hicks neutrality. Recent advances in the measurement of product and factor biases of technical change developed by Balcombe et al (2000) provide a relatively straight-forward means of correcting product and factor shares in the face of biased technical progress. This paper demonstrates the correction of factor shares used in the construction of a TFP index for UK agriculture over the period 1953 to 2000 using both revenue and cost function share equations appended with stochastic latent variables to capture the bias effect. Technical progress is shown to be biased between both individual input and output groups. Output and input quantity aggregates are then constructed using both observed and corrected share weights and the resulting TFPs are compared. There does appear to be some significant bias in TFP if the effect of biased technical progress is not taken into account when constructing the weights.
AGRICULTURAL ADJUSTMENT AND THE DIVERSIFICATION OF FARM HOUSEHOLDS IN CENTRAL EUROPE
Creators: name: Chaplin, Hannah
name: Davidova, Sophia
name: Gorton, Matthew
name: Chaplin, Hannah
name: Davidova, Sophia
name: Gorton, Matthew
Publisher: name: Unknown
Year: 2003
Subjects: subject: Consumer/Household Economics
subject: Farm households
subject: non-agricultural diversification
subject: job creation
subject: Central Europe

description: Survey evidence from three Central European Countries (Czech Republic, Hungary and Poland) is analysed to identify the degree of non-agricultural farm diversification and the factors facilitating or impeding it in individual farms. The effect of diversification on rural job creation is investigated. The results indicate that the level of diversification is relatively small and enterprise diversification by farmers is unlikely to generate sufficient new jobs and solve the problem of high rural unemployment. The attempt to transpose the Western European model of agricultural diversification to the acceding countries via the SAPARD programme is questionable, as non-farm centric rural policies appear to be more appropriate.
Tuning the Branching Ratio in a Symmetric Potential Energy Surface with a Post-Transition State Bifurcation using External Time Dependence
Creators: name: García-Garrido, V. J.
name: Katsanikas, M.
name: Agaoglou, M.
name: Wiggins, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Dynamical Systems (math.DS)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 34C37, 70K44, 34Cxx, 70Hxx

description: Chemical selectivity, as quantified by a branching ratio, is a phenomenon relevant for many organic chemical reactions. It may be exhibited on a potential energy surface that features a valley-ridge inflection point in the region between two sequential index-1 saddles, with one saddle having higher energy than the other. Reaction occurs when a trajectory crosses the region of the higher energy saddle (the entrance channel) and approaches the lower energy saddle. On both sides of the lower energy saddle, there are two wells and the question we address in this work is that, given an initial ensemble of trajectories, what is the relative fraction of trajectories that enter each well. For a symmetric PES this fraction is 1:1. We consider a symmetric PES subjected to a time-periodic forcing characterized by an amplitude, frequency, and phase. In this letter we analyse how the branching ratio depends on these three parameters.
description: 11 pages, 9 figures
TRANSITION AND FOOD CONSUMPTION
Creators: name: Liefert, William M.
name: Lohmar, Bryan
name: Serova, Eugenia
name: Liefert, William M.
name: Lohmar, Bryan
name: Serova, Eugenia
Publisher: name: Unknown
Year: 2003
Subjects: Food Consumption/Nutrition/Food Safety

description: This paper examines why transition from planned to market economies in the countries of the former Soviet bloc has changed their mix and volumes of food consumption. During transition, consumption of high value products, such as meat and dairy products, has plummeted, while consumption of staple foods such as bread and potatoes has remained steady, or even increased. The paper shows that in the pre-reform planned economy, planners "desired" the production and national consumption of high value (and cost) foodstuffs more than consumers. When market reform resulted in consumer prices adjusting to reflect the full cost of production, consumer demand switched from high cost foods to other goods and services. The demand-driven nature of food restructuring in these countries has implications for food security, reinforcing the argument that any food security problems are not mainly the result of inadequate aggregate supplies of agricultural products.
Semiclassical Nonadiabatic Molecular Dynamics Using Linearized Pair-Density Functional Theory
Creators: name: Hennefarth, Matthew R.
name: Truhlar, Donald G.
name: Gagliardi, Laura
Publisher: name: arXiv
Year: 2024
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Nonadiabatic molecular dynamics is an effective method for modeling nonradiative decay in electronically excited molecules. Its accuracy depends strongly on the quality of the potential energy surfaces, and its affordability for long direct-dynamic simulations with adequate ensemble averaging depends strongly on the cost of the required electronic structure calculations. Linearized pair-density functional theory (L-PDFT) is a recently developed post-self-consistent field multireference method that can model potential energy surfaces with an accuracy similar to expensive multireference perturbation theories but at a computational cost similar to the underlying multiconfiguration self-consistent field method. Here we integrate the SHARC dynamics and PySCF electronic structure code to utilize L-PDFT for electronically nonadiabatic calculations and use the combined programs to study the photoisomerization reaction of cis-azomethane. We show that L-PDFT is able to successfully simulate the photoisomerization and yields results similar to the more expensive extended multi-state complete active space second-order perturbation theory. This shows that L-PDFT can model internal conversion, and it demonstrates its promise for broader photodynamics applications.
description: 8 pages, 5 figures
A Method For Eclipsing Component Identification In Large Photometric Datasets
Creators: name: Devor, Jonathan
name: Charbonneau, David
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We describe an automated method for assigning the most likely physical parameters to the components of an eclipsing binary (EB), using only its photometric light curve and combined color. In traditional methods (e.g. WD and EBOP) one attempts to optimize a multi-parameter model over many iterations, so as to minimize the chi-squared value. We suggest an alternative method, where one selects pairs of coeval stars from a set of theoretical stellar models, and compares their simulated light curves and combined colors with the observations. This approach greatly reduces the EB parameter-space over which one needs to search, and allows one to determine the components' masses, radii and absolute magnitudes, without spectroscopic data. We have implemented this method in an automated program using published theoretical isochrones and limb-darkening coefficients. Since it is easy to automate, this method lends itself to systematic analyses of datasets consisting of photometric time series of large numbers of stars, such as those produced by OGLE, MACHO, TrES, HAT, and many others surveys.
description: 6 pages, 5 figures. To appear in the conference proceedings of "Close Binaries in the 21st Century: New Opportunities and Challenges", Syros, Greece, 27-30 June, 2005
Multi-tree Quantum Routing in Realistic Topologies
Creators: name: Yang, Zebo
name: Ghubaish, Ali
name: Jain, Raj
name: Kompella, Ramana
name: Shapourian, Hassan
Publisher: name: arXiv
Year: 2024
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Quantum Physics (quant-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: In entanglement distribution networks, communication between two nodes necessitates the generation of end-to-end entanglement by entanglement swapping at intermediate nodes. Efficiently creating end-to-end entanglements over long distances is a key objective. In our prior study on asynchronous routing, we enhanced these entanglement rates by leveraging solely the local knowledge of the entanglement links of a node. This was achieved by creating a tree structure, particularly a destination-oriented directed acyclic graph (DODAG) or a spanning tree, eliminating synchronous operations and conserving unused entanglement links. In this article, we present a multi-tree approach with multiple DODAGs designed to improve end-to-end entanglement rates in large-scale networks, specifically catering to a range of network topologies, including grids and barbells, as well as realistic topologies found in research testbeds like ESnet and Internet2. Our simulations show a marked improvement in end-to-end entanglement rates for specific topologies compared to the single-tree method. This study underscores the promise of asynchronous routing schemes in quantum networks, highlighting the effectiveness of asynchronous routing across different network topologies and proposing a superior routing tactic.
description: This article has been accepted for publication in IEEE Communications Magazine
Random-energy model in random fields
Creators: name: Filho, Luiz O. de Oliveira
name: da Costa, Francisco Alexandre
name: Yokoi, Carlos S. O.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The random-energy model is studied in the presence of random fields. The problem is solved exactly both in the microcanonical ensemble, without recourse to the replica method, and in the canonical ensemble using the replica formalism. The phase diagrams for bimodal and Gaussian random fields are investigated in detail. In contrast to the Gaussian case, the bimodal random field may lead to a tricritical point and a first-order transition. An interesting feature of the phase diagram is the possibility of a first-order transition from paramagnetic to mixed phase.
description: 18 pages, 5 figures (included)
CONSTRAINTS AND OPPORTUNITIES IN VEGETABLE TRADE
Creators: name: Lopez, Rigoberto A.
name: Pagoulatos, Emilio
name: Polopolus, Leo C.
name: Lopez, Rigoberto A.
name: Pagoulatos, Emilio
name: Polopolus, Leo C.
Publisher: name: Unknown
Year: 1989
Subjects: International Relations/Trade

description: The objective of this article is to provide an overview on constraints and opportunities for increased vegetable trade in the Americas. The realization of this potential will likely be constrained by the extent of the market, immigration reform in the United States, lack of investment capital in Latin America, high transportation costs of fresh produce, and quality and health concerns of consumers. Opportunities are more apparent in selected world areas (Asia, European Community, United States, and Canada), for high quality, fresh rather than processed vegetables with safe or zero levels of pesticide and chemical residues, especially due to consumers' concern for a healthier diet. Whether or not the potential for expanding vegetable trade will be realized depends on how producers, traders, and governments respond to the challenges involved, especially those involving production and marketing strategies to respond to evolving consumers' tastes and preferences.
CP, T and CPT in the non-perturbative formulation of chiral gauge theories
Creators: name: Hasenfratz, Peter
name: Bissegger, Moritz
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: In spite of significant recent progress on the non-perturbative formulation of chiral gauge theories there remained several unsolved problems. One of them is the puzzle that the left- and right-handed projectors, and so the left- and right-handed actions, break CP-symmetry on the lattice. We show in this letter that they break T-symmetry also, while CPT remains intact.
description: 6 pages