cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Low energy neutrino scattering : from fundamental interaction studies to astrophysics
Creators: name: Volpe, Cristina
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Neutrino scattering at low energies is essential for a variety of timely applications potentially having fundamental implications, e.g. unraveling unknown neutrino properties, such as the third neutrino mixing angle, the detection of the diffuse supernova neutrino background, or of cosmological neutrinos and furnishing a new constraint to double-beta decay calculations. Here we discuss some applications, the present status and the perspectives.
description: 6 pages, Proceedings to the 45th Winter School in Theoretical Physics "Neutrino Interactions: from Theory to Monte Carlo Simulations", Ladek-Zdroj, Poland, February 2--11, 2009
Supply Risk Management: Mitigation Strategy
Creators: name: Coviello, Antonio
name: Di Trapani, Giovanni
Publisher: name: International Journal of Economic Behavior
Year: 2013

description: The role of risk management is to analyse the measures aimed at protecting firms, specifically the Risk Management techniques. Company protection is a field in which managerial innovations are urgently required. The need for the supply risk management is the result of social awareness for safety, law-makers desire to regulate dangerous activities and protect individuals exposed to risk, the evolution of technologies which are becoming increasingly complex and dangerous. Malicious and accidental events imply substantial costs that in the most severe cases can even exceed the company’s financial capability. An accurate management of these events and a mitigation strategy can then be a valuable source of saving. low level of propensity to manage and govern mere risks is also due to a specific firm-insurance company relationship characterised by both co-operation and conflicts: nowadays firms do not want “traditional” insurance policies only; they require a range of quality innovative insurance-financial products with consulting services. Keywords: Supply risk management; mitigation strategy; Insurance.
description: International Journal of Economic Behavior, Vol 3, No 1 (2013): International Journal of Economic Behavior
title: Plan de Châlons, vers 1625
Creators: name: Picart, Hugues
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2024

description: Copie manuscrite (19e siècle) du plan de Picart. On distingue le petit cloître, en face de l’église de la Trinité.
description: Source: Médiathèque Georges Pompidou, Châlons-en-Champagne, ES PL ANC CHA 6 (2479)
description: Source: https://bmvr.chalonsenchampagne.fr/ark:/89948/ca0000006245?posInSet=2&queryId=2d9f8723-52ab-4770-b2a6-a475f1a2cb60
Editorial
Creators: name: Musso, Fabio
Publisher: name: International Journal of Economic Behavior
Year: 2014

description: Traditionally, strategic management has been analyzed from an economic perspective, with approaches aiming at understanding the mechanisms underlying firms' performance. The most relevant theories, such as the structure-strategy-performance paradigm by Porter for the analysis of competitive advantage, the game theory about competitive interaction, the evolutionary perspective and the resource-based view, tried to point out conditions and causal mechanisms of competitiveness, linking internal resources to the generation of value in a market context. More recently, a psychological perspective has been adopted in several studies in order to contribute to understanding organizational and market dynamics. The field of analysis shifted from the external environment to the internal resources of an economic organization, paying increasing attention to the cognitive and behavioral processes. However, the emphasis put by psychology of strategic management literature on behavioral and cognitive aspects of strategy formulation brought to undervalue emotional and affective aspects, leading to a still inadequate representation of strategic management. There is still a lot of work in terms of interdisciplinary studies to succeed in capturing a vision which includes all perspectives that need to be taken for a complete understanding of the decision-making process of companies and organizations. This journal aims at encouraging this interdisciplinary approach, firstly by integrating the economic and the management perspectives with the behavioral and psychological ones. Classification-JEL: L1, L2, D03, D21, D22, D7, D81, D82, E27, E47, I12 Keywords: Behavioral Economics, Consumer Behavior, Management, Business Management
description: International Journal of Economic Behavior, Vol 4, No 1 (2014): International Journal of Economic Behavior
No constraints for $f(T)$ gravity from gravitational waves induced from primordial black hole fluctuations
Creators: name: Papanikolaou, Theodoros
name: Tzerefos, Charalampos
name: Basilakos, Spyros
name: Saridakis, Emmanuel N.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Primordial black hole (PBH) fluctuations can induce a stochastic gravitational wave background at second order, and since this procedure is sensitive to the underlying gravitational theory it can be used as a novel tool to test general relativity and extract constraints on possible modified gravity deviations. We apply this formalism in the framework of $f(T)$ gravity, considering three viable mono-parametric models. In particular, we investigate the induced modifications at the level of the gravitational-wave source, which is encoded in terms of the power spectrum of the PBH gravitational potential, as well as at the level of their propagation, described in terms of the Green function which quantifies the propagator of the tensor perturbations. We find that, within the observationally allowed range of the $f(T)$ model-parameters, the obtained deviations from general relativity, both at the levels of source and propagation, are practically negligible. Hence, we conclude that realistic and viable $f(T)$ theories can safely pass the primordial black hole constraints, which may offer an additional argument in their favor.
description: Published in Eur. Phys. J. C. arXiv admin note: text overlap with arXiv:2112.15059
Secular evolution of viscous and self-gravitating circumstellar discs
Creators: name: Vorobyov, E. I.
name: Basu, Shantanu
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We add the effect of turbulent viscosity via the α-prescription to models of the self-consistent formation and evolution of protostellar discs. Our models are non-axisymmetric and carried out using the thin-disc approximation. Self-gravity plays an important role in the early evolution of a disc, and the later evolution is determined by the relative importance of gravitational and viscous torques. In the absence of viscous torques, a protostellar disc evolves into a self-regulated state with disk-averaged Toomre parameter Q \sim 1.5-2.0, non-axisymmetric structure diminishing with time, and maximum disc-to-star mass ratio ξ= 0.14. We estimate an effective viscosity parameter α_eff associated with gravitational torques at the inner boundary of our simulation to be in the range 10^{-4}-10^{-3} during the late evolution. Addition of viscous torques with a low value α= 10^{-4} has little effect on the evolution, structure, and accretion properties of the disc, and the self-regulated state is largely preserved. A sequence of increasing values of αresults in the discs becoming more axisymmetric in structure, being more gravitationally stable, having greater accretion rates, larger sizes, shorter lifetimes, and lower disc-to-star mass ratios. For α=10^{-2}, the model is viscous-dominated and the self-regulated state largely disappears by late times. (Abridged)
description: 13 pages, 11 figures, accepted for publication in MNRAS
Approximate Noether Symmetries of the Geodesic Equations for the Charged-Kerr Spacetime and Rescaling of Energy
Creators: name: Hussain, Ibrar
name: Mahomed, F. M.
name: Qadir, Asghar
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Using approximate symmetry methods for differential equations we have investigated the exact and approximate symmetries of a Lagrangian for the geodesic equations in the Kerr spacetime. Taking Minkowski spacetime as the exact case, it is shown that the symmetry algebra of the Lagrangian is 17 dimensional. This algebra is related to the 15 dimensional Lie algebra of conformal isometries of Minkowski spacetime. First introducing spin angular momentum per unit mass as a small parameter we consider first-order approximate symmetries of the Kerr metric as a first perturbation of the Schwarzschild metric. We then consider the second-order approximate symmetries of the Kerr metric as a second perturbation of the Minkowski metric. The approximate symmetries are recovered for these spacetimes and there are no non-trivial approximate symmetries. A rescaling of the arc length parameter for consistency of the trivial second-order approximate symmetries of the geodesic equations indicates that the energy in the charged-Kerr metric has to be rescaled and the rescaling factor is $r$-dependent. This rescaling factor is compared with that for the Reissner-Nordström metric.
description: 17 Pages
Twisted exponential sums of polynomials in one variable
Creators: name: Liu, Chunlei
name: Liu, Wenxin
Publisher: name: arXiv
Year: 2009
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 11L07;11F30

description: The twisted $T$-adic exponential sum associated to a polynomial in one variable is studied. An explicit arithmetic polygon in terms of the highest two exponents of the polynomial is proved to be a lower bound of the Newton polygon of the $C$-function of the twisted T-adic exponential sum. This bound gives lower bounds for the Newton polygon of the $L$-function of twisted $p$-power order exponential sums.
Quantum associative memory with a single driven-dissipative nonlinear oscillator
Creators: name: Labay-Mora, Adrià
name: Zambrini, Roberta
name: Giorgi, Gian Luca
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Algorithms for associative memory typically rely on a network of many connected units. The prototypical example is the Hopfield model, whose generalizations to the quantum realm are mainly based on open quantum Ising models. We propose a realization of associative memory with a single driven-dissipative quantum oscillator exploiting its infinite degrees of freedom in phase space. The model can improve the storage capacity of discrete neuron-based systems in a large regime and we prove successful state discrimination between $n$ coherent states, which represent the stored patterns of the system. These can be tuned continuously by modifying the driving strength, constituting a modified learning rule. We show that the associative-memory capacity is inherently related to the existence of a spectral gap in the Liouvillian superoperator, which results in a large timescale separation in the dynamics corresponding to a metastable phase.
Unitary evolution and cosmic acceleration in Loop Quantum Cosmology
Creators: name: Gallegos, Omar
name: Matos, Tonatiuh
name: Morales-Técotl, Hugo A.
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Loop quantum cosmology was shown to interpolate between de Sitter and FLRW Universe phases through a bounce by including Euclidean and Lorentzian terms of the Hamiltonian constraint with weight one -that corresponding to classical General Relativity. Unitary evolution required self-adjoint extensions of the constraint and a Planckian cosmological constant was obtained. Independent work took a positive weight to get a cosmological constant with the observed value, without considering unitarity. In this work we address the unitary evolution of the model for arbitrary weight. For non positive weight parameter unitary holds but for positive values self-adjoint extensions are required. To encompass observations the extensions here provided are mandatory. These are implemented in a propagator. Finally, we discuss our results and perspectives.
description: Published in PLB
Encoding many qubits in a rotor
Creators: name: Kalev, Amir
name: Raynal, Philippe
name: Suzuki, Jun
name: Englert, Berthold-Georg
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a scheme for encoding many qubits in a single rotor, that is, a continuous and periodic degree of freedom. A key feature of this scheme is its ability to manipulate and entangle the encoded qubits with a single operation on the system. We also show, using quantum error-correcting codes, how to protect the qubits against small errors in angular position and momentum which may affect the rotor. We then discuss the feasibility of this scheme and suggest several candidates for its implementation. The proposed scheme is immediately generalizable to qudits of any finite dimension.
description: 11 pages, 5 figures
Explaining Customer Loyalty to Retail Stores In U.S. Hispanic Markets
Creators: name: Vasquez-Parraga, Arturo Z.
name: Sahagun, Miguel A.
Publisher: name: International Journal of Economic Behavior
Year: 2014

description: Explaining customer store loyalty in emerging markets, in particular Hispanic markets, is the main purpose of this paper. Acknowledging that there have been many attempts to better understand customer store loyalty, this study employs an explanation chain and, thus, a model describing key relationships in the generation of customer loyalty, from initial customer satisfaction to trust, to commitment, to loyalty. Additional variables are explored as moderators of the relationships taking place within the explanation chain. Using both SPSS and SEM analyses, the results support a strong explanation chain of customer store loyalty with moderators adding less than 5% explained variance. Managerial implications and research limitations are also examined. Classification-JEL: D1 Keywords: Retail customer; Customer store loyalty; Trust; Commitment; Satisfaction; U.S. Hispanic Consumers.
description: International Journal of Economic Behavior, Vol 4, No 1 (2014): International Journal of Economic Behavior
The Integration of Interactive and Collaborative Tools 2.0 in Websites of Micro and Small Enterprises
Creators: name: Consoli, Domenico
Publisher: name: International Journal of Economic Behavior
Year: 2014

description: Nowadays also micro and small companies use interactive web sites that integrate some tools 2.0 (chat, blogs, forums, ...) and links to social networks, such as Facebook and Twitter, to interface with the external environment. By these new tools companies can interacts with all stakeholders of the supply chain and in particular with customers to improve their products/services. In this way between customers and company a bidirectional channel is established and a process of co-creation and co-production of products/services is stimulated. Small enterprises should take advantage using these technological channels to increase the competitiveness. In this paper we analyse the state of the art about the use of interactive and collaborative tools in websites of micro and small companies that have introduced some experimentations in this direction. The analysis is oriented to understand if entrepreneurs or managers think that these new digital channels are important in reaching business goals. Classification-JEL: O3, M Keywords: web 2.0, enterprise 2.0, web-oriented technology, micro and small enterprises, innovative technologies
description: International Journal of Economic Behavior, Vol 4, No 1 (2014): International Journal of Economic Behavior
Redshifts and lens profile for the double quasar QJ 0158-4325
Creators: name: Faure, C.
name: Anguita, T.
name: Eigenbrod, A.
name: Kneib, J. -P.
name: Chantry, V.
name: Alloin, D.
name: Morgan, N.
name: Covone, G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on the redshift of the lensing galaxy and of the quasar QJ 0158-4325 and on the lens model of the system. A deep VLT/FORS2 spectrum and HST/NICMOS-F160W images are deconvolved. From the images we derive the light profile of the lensing galaxy and an accurate relative astrometry for the system. In addition we measure the flux ratio between the quasar images in the MgII emission line to constrain the mass model. From the spectrum we measure the redshift of the lensing galaxy (z=0.317+/-0.001) and of the quasar (z=1.294+/-0.008). Using the flux ratio in the lens model allows to discard the SIE as a suitable approximation of the lens potential. On the contrary the truncated-PIEMD gives a good fit to the lens and leads to a time delay of t(A-B)=-14.5+/-0.1 days, with H0=73 km/s/Mpc. Using the flux ratio to constrain the mass model favors the truncated-PIEMD over the SIE, while ignoring this constraint leaves the choice open.
description: Research Note, Accepted for publication in A&A
Self-supervised Anomaly Detection for New Physics
Creators: name: Dillon, Barry M.
name: Mastandrea, Radha
name: Nachman, Benjamin
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: We investigate a method of model-agnostic anomaly detection through studying jets, collimated sprays of particles produced in high-energy collisions. We train a transformer neural network to encode simulated QCD "event space" dijets into a low-dimensional "latent space" representation. We optimize the network using the self-supervised contrastive loss, which encourages the preservation of known physical symmetries of the dijets. We then train a binary classifier to discriminate a BSM resonant dijet signal from a QCD dijet background both in the event space and the latent space representations. We find the classifier performances on the event and latent spaces to be comparable. We finally perform an anomaly detection search using a weakly supervised bump hunt on the latent space dijets, finding again a comparable performance to a search run on the physical space dijets. This opens the door to using low-dimensional latent representations as a computationally efficient space for resonant anomaly detection in generic particle collision events.
description: 13 pages, 12 figures. minor updates, v2 (published version)
Mechanics of Reversible Unzipping
Creators: name: Maddalena, F.
name: Percivale, D.
name: Puglisi, G.
name: Truskinovsky, L.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Other Quantitative Biology (q-bio.OT)
subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences

description: We study the mechanics of a reversible decohesion (unzipping) of an elastic layer subjected to quasi-static end-point loading. At the micro level the system is simulated by an elastic chain of particles interacting with a rigid foundation through breakable springs. Such system can be viewed as prototypical for the description of a wide range of phenomena from peeling of polymeric tapes, to rolling of cells, working of gecko's fibrillar structures and denaturation of DNA. We construct a rigorous continuum limit of the discrete model which captures both stable and metastable configurations and present a detailed parametric study of the interplay between elastic and cohesive interactions. We show that the model reproduces the experimentally observed abrupt transition from an incremental evolution of the adhesion front to a sudden complete decohesion of a macroscopic segment of the adhesion layer. As the microscopic parameters vary the macroscopic response changes from quasi-ductile to quasi-brittle, with corresponding decrease in the size of the adhesion hysteresis. At the micro-scale this corresponds to a transition from a `localized' to a `diffuse' structure of the decohesion front (domain wall). We obtain an explicit expression for the critical debonding threshold in the limit when the internal length scales are much smaller than the size of the system. The achieved parametric control of the microscopic mechanism can be used in the design of new biological inspired adhesion devices and machines.
New Financial Development Indicators: With a Critical Contribution to Inequality Empirics
Creators: name: Asongu, Simplice A.
Publisher: name: International Journal of Economic Behavior
Year: 2014

description: The employment of financial development indicators without due consideration to country/regional specific financial development realities remains an issue of substantial policy relevance. Financial depth in the perspective of money supply is not equal to liquid liabilities in every development context. This paper introduces complementary indicators to the existing Financial Development and Structure Database (FDSD). Dynamic panel system GMM estimations are applied. Different specifications, non-overlapping intervals and control variables are used to check the consistency of estimated coefficients. Our results suggest that from an absolute standpoint (GDP base measures), all financial sectors are pro-poor. However, three interesting findings are drawn from measures of sector importance. (1) The expansion of the formal financial sector to the detriment of other financial sectors has a disequalizing income effect. (2) Growth of informal and semi-formal financial sectors at the expense of the formal financial sector has an income equalizing effect. (3) The positive income redistributive effect of semi-formal finance in financial sector competition is higher than the corresponding impact of informal finance. It unites two streams of research by contributing at the same time to the macroeconomic literature on measuring financial development and responding to the growing field of economic development by means of informal financial sector promotion and microfinance. The paper suggests a practicable way to disentangle the effects of the various financial sectors on economic development. The equation of financial depth in the perspective of money supply to liquid liabilities has put on the margin the burgeoning informal financial sector in developing countries. The phenomenon of mobile banking is such an example Classification-JEL: E00; G20; I30; O17; O55 Keywords: Financial Development; Shadow Economy; Poverty; Inequality; Africa
description: International Journal of Economic Behavior, Vol 4, No 1 (2014): International Journal of Economic Behavior
Investigating the human microbiome : dynamic interactions and therapeutic potentials in health and disease states
Creators: name: Kazemian, Negin
Publisher: name: University of British Columbia
Year: 2024

description: The intricate nexus between humans, environmental factors, and the gut microbiota plays a pivotal role in determining the overall health of the host. Our gut microbiota's composition is a dynamic tapestry woven from threads of both early-life events and adult experiences, each contributing uniquely to our overall health and well-being. Thus, the overall aim of this thesis was to investigate the role of the gut microbiome in health and disease states. The gut microbiota’s role in cholesterol metabolism (cholesterol to coprostanol conversion), is not fully understood. Therefore, I first aimed to explore the gut’s environment, encompassing mucus, microbiome, and metabolites to explore its relationship with cholesterol metabolism among healthy participants. High-converters had increased Akkermansia muciniphila. Importantly, the causal role of A. muciniphila in conversion was confirmed. Non-converters showed reduced mucus glycan sialylation and fecal bile acid desulfation, similar to trends observed in inflammatory bowel disease (IBD). Next, I aimed to gain a holistic understanding of the impact of adverse childhood experiences (ACEs) on gut microbiota. ACEs can impact physical and mental health outcomes in adulthood; however, studies assessing how ACEs may impact gut microbiota are lacking. High ACE individuals displayed distinct gut microbiota differences potentially impacting intestinal tissue integrity. They also experienced a higher prevalence of diarrhea, possibly linked to stress on the gastrointestinal system. Lastly, I aimed to better understand the underlying mechanisms for fecal microbiota transplantation (FMT) and optimize microbial therapeutics for recurrent Clostridioides difficile infections (rCDI). Studies often have a uni-kingdom focus and few studies have examined the role of gut mycobiome and virome on FMT efficacy. Thus, I aimed to investigate whether FMT super-donors exist or whether the gut microbiomes of both donors and recipients are implicated in FMT success. Our results suggested that FMT outcome is not only dependent on the ecological structure of the recipients but also on the interactions between the donor and recipient microbiomes. In summary, our integrated studies underscore the multi-faceted factors involved in microbiome-mediated mechanisms in health and disease states. Insights gathered can pave the way for innovative therapeutic interventions against diseases and microbiota-related conditions.
The $p$-Faber-Krahn Inequality Noted
Creators: name: Xiao, Jie
Publisher: name: arXiv
Year: 2009
Subjects: subject: Analysis of PDEs (math.AP)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 35J70; 31B15; 31B35; 53A30

description: When revisiting the Faber-Krahn inequality for the principal $p$-Laplacian eigenvalue of a bounded open set in $\mathbb R^n$ with smooth boundary, we simply rename it as the $p$-Faber-Krahn inequality and interestingly find that this inequality may be improved but also characterized through Maz'ya's capacity method, the Euclidean volume, the Sobolev type inequality and Moser-Trudinger's inequality.
Moon Phase as the Cause of Monday Irrationality: Case of Asean Day of the Week Anomaly
Creators: name: Brahmana, Rayenda Khresna
name: Hooy, Chee-Wooi
name: Ahmad, Zamri
Publisher: name: International Journal of Economic Behavior
Year: 2014

description: Many Day-of-the week anomaly papers have suggested investor behaviour as the explanation of highly differentiated returns on Mondays; yet, rarely found a paper has empirically investigated it. Therefore, this paper proposes Moon-Induced mood as the determinant of that irrational behaviour. This proposition is based on our preliminary findings that the full moon phase occurred more often on Mondays compared to other days; an indication of a causal relationship. By taking Indonesia, Malaysia, Thailand, and the Philippines as samples during the period of 1999-2010, this paper found: (1) There is evidence of a Monday effect across all the ASEAN stock markets, (2) The moon phase and its interaction with Mondays has significantly influenced the Monday effect, and (3) A full moon on Monday has significant negative influenced on Monday returns. In conclusion, the stimulation by moon phase forms affection bias, and the resulting outcome is the irrational stock market behavior. Classification-JEL: G02, D01 Keywords: Moon Effect, Day-Of-Week-Anomaly, Irrational Behavior, ASEAN.
description: International Journal of Economic Behavior, Vol 4, No 1 (2014): International Journal of Economic Behavior
PatchNR: Learning from Very Few Images by Patch Normalizing Flow Regularization
Creators: name: Altekrüger, Fabian
name: Denker, Alexander
name: Hagemann, Paul
name: Hertrich, Johannes
name: Maass, Peter
name: Steidl, Gabriele
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Image and Video Processing (eess.IV)
subject: Probability (math.PR)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics

description: Learning neural networks using only few available information is an important ongoing research topic with tremendous potential for applications. In this paper, we introduce a powerful regularizer for the variational modeling of inverse problems in imaging. Our regularizer, called patch normalizing flow regularizer (patchNR), involves a normalizing flow learned on small patches of very few images. In particular, the training is independent of the considered inverse problem such that the same regularizer can be applied for different forward operators acting on the same class of images. By investigating the distribution of patches versus those of the whole image class, we prove that our model is indeed a MAP approach. Numerical examples for low-dose and limited-angle computed tomography (CT) as well as superresolution of material images demonstrate that our method provides very high quality results. The training set consists of just six images for CT and one image for superresolution. Finally, we combine our patchNR with ideas from internal learning for performing superresolution of natural images directly from the low-resolution observation without knowledge of any high-resolution image.
On AGT description of N=2 SCFT with N_f=4
Creators: name: Giribet, Gaston
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider Alday-Gaiotto-Tachikawa (AGT) realization of the Nekrasov partition function of N=2 SCFT. We focus our attention on the SU(2) theory with N_f=4 flavor symmetry, whose partition function, according to AGT, is given by the Liouville four-point function on the sphere. The gauge theory with N_f=4 is known to exhibit SO(8) symmetry. We explain how the Weyl symmetry transformations of SO(8) flavor symmetry are realized in the Liouville theory picture. This is associated to functional properties of the Liouville four-point function that are a priori unexpected. In turn, this can be thought of as a non-trivial consistency check of AGT conjecture. We also make some comments on elementary surface operators and WZW theory.
description: 18 pages. v2, a misinterpretation in the gauge theory side has been corrected; title and introduction were changed accordingly
Retailer – Consumer Relationships for Durable Goods Market in Romania. A Multimethod Analysis
Creators: name: Gabor, Manuela Rozalia
Publisher: name: International Journal of Economic Behavior
Year: 2014

description: The durable goods market in Romania has many features thanks to simultaneously: acquisition way, structure of households, retailers on this market, banking policies as regards providing consumption loans („loans with identity card only”), macroeconomic policies of tacit supporting in relation to banking policies etc. These characteristics are found in the low endowment with durable goods of households in Romania, and that generate features of the acquisition process, the decision taking process of durable goods and implicitly of retailer – consumer relationships. This paper covers the last aspect, being used a representative urban sample of 300 households, the following methods being used for data processing: 2 test bivariate, ANOVA, Wilcoxon test, Cronbach alpha, split – half, the goal of this paper being that to provide new results referring to retailer – consumer relationships for the durable goods market in Romania, that confirm or infirm the foreign research results. Classification-JEL: D4, L14, M3, M31 Keywords: Durable goods; Romanian market; Socio-demographic variables; Households; Statistical methods; Retailers; Consumers.
description: International Journal of Economic Behavior, Vol 4, No 1 (2014): International Journal of Economic Behavior
Psychological Pricing in Modern Retailing: The Case of Wine Sector in Hard-Discounter Chains of Russia
Creators: name: Perovic, Nikola
Publisher: name: International Journal of Economic Behavior
Year: 2014

description: The main goal of this paper is to show if is possible to find a modern retail chain in one of the world largest economies that uses exclusively psychological pricing, as a dominant competitive advantage, in order to predominantly direct consumer behavior. Pricing, as a source of competitive advantage is the least explained in marketing literature, therefore it is important to contribute and show how psychological pricing is a source of competitive advantage. It could be an evidence to support the firm belief which exists among many retailers that greater than expected demand occurs at psychological price points. We shall analyze different retail chains belonging to so call hard-discounters in Russian Federation using method of observation and choose one sector in order to check the hypothesis. Hard-discounters are chosen since they use pricing strategies as the most important element of marketing program, much more important than products, promotion or sales channels, while Russia has been chosen as the largest growing wine market in the world. Classification-JEL: D4, L14, M3, M31 Keywords: retail, price, strategy, discounter, positioning
description: International Journal of Economic Behavior, Vol 4, No 1 (2014): International Journal of Economic Behavior
Existence and multiplicity of solutions involving the $p(x)$-Laplacian equations: On the effect of two nonlocal terms
Creators: name: Hamdani, M. K.
name: Mbarki, L.
name: Allaoui, M.
name: Darhouche, O.
name: Repovš, D. D.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: Primary: 35S15, 35J65, Secondary: 35B65

description: We study a class of $p(x)$-Kirchhoff problems which is seldom studied because the nonlinearity has nonstandard growth and contains a bi-nonlocal term. Based on variational methods, especially the Mountain pass theorem and Ekeland's variational principle, we obtain the existence of two nontrivial solutions for the problem under certain assumptions. We also apply the Symmetric mountain pass theorem and Clarke's theorem to establish the existence of infinitely many solutions. Our results generalize and extend several existing results.
Voltage-Controlled Surface Magnetization of Itinerant Ferromagnet Ni_(1-x)Cu_x
Creators: name: Ovchinnikov, Igor V.
name: Wang, Kang L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We argue that surface magnetization of a metallic ferromagnet can be turned on and off isothermally by an applied voltage. For this, the material's electron subsystem must be close enough to the boundary between para- and ferromagnetic regions on the electron density scale. For the 3d series, the boundary is between Ni and Cu, which makes their alloy a primary candidate. Using Ginzburg-Landau functional, which we build from Ni_(1-x)Cu_x empirical properties, ab-initio parameters of Ni and Cu, and orbital-free LSDA, we show that the proposed effect is experimentally observable.
description: 4 pages; 2 figures; submitted to PRL February 16th 2008; transferred to PRB June 21st 2008; published July 15th 2008
Convergence and Optimum Currency Area, as Advanced Economic Integration
Creators: name: Andrei, Liviu Catalin
Publisher: name: International Journal of Economic Behavior
Year: 2014

description: In 1961, in the earlier stage of the European integration, professor Bela Balassa proposed a five successive phase model. Today, the half century experience on integration and corresponding literature issued lets us see rather two big phases (instead of five). The one would be the incipient integration, that came to enlarge the economic openess and internationalization and shaped: (i) free trade area (FTA) and (ii) customs union; the other would be the advanced integration, in which internationalization would be replaced by the unique-common market and other two commandments would replace or just reshape the older FTA and customs union into: (iii) economic convergence and (iv) optimal currency area. The last two will be emphasized by our paper, as for their current description-analysis in the literature. Classification-JEL: F02, F15, F36 Keywords: European type integration; incipient & advanced integration phases; customs union; economic convergence; monetary union; fiscal union; optimum currency area
description: International Journal of Economic Behavior, Vol 4, No 1 (2014): International Journal of Economic Behavior
1 Brief an [Johann Caspar Lavater]
Brief an Lavater ...
Creators: name: Ringold, Karl Joseph
Publisher: name: [s.n.]
Year: 1799

description: von [Karl Joseph] Ringold
description: Kopie eines Briefs von Ringold von anderer Hand mit Einleitung und Zwischenbemerkung sowie Einschub eines weiteren Briefausschnitts
description: Ringold: Pfarrer in Altdorf
Mapping the nonlinear optical susceptibility by noncollinear second harmonic generation
Creators: name: Larciprete, M. C.
name: Bovino, F. A.
name: Giardina, M.
name: Belardini, A.
name: Centini, M.
name: Sibilia, 1 C.
name: Bertolotti, M.
name: Passaseo, A.
name: Tasco, V.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Optics (physics.optics)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: We present a method, based on noncollinear second harmonic generation, to evaluate the non-zero elements of the nonlinear optical susceptibility. At a fixed incidence angle, the generated signal is investigated by varying the polarization state of both fundamental beams. The resulting polarization charts allows to verify if Kleinman symmetry rules can be applied to a given material or to retrieve the absolute value of the nonlinear optical tensor terms, from a reference measurement. Experimental measurements obtained from Gallium Nitride layers are reported. The proposed method does not require an angular scan thus is useful when the generated signal is strongly affected by sample rotation
description: To appear on Opt. Lett
Simon-Gutowitz bidirectional traffic model revisited
Creators: name: Moussa, Najem
Publisher: name: arXiv
Year: 2009
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: The Simon-Gutowitz bidirectional traffic model (Phys. Rev. E 57, 2441 (1998)) is revisited in this letter. We found that passing cars get stuck with oncoming cars before returning to their home lanes. This provokes the occurrence of wide jams on both lanes. We have rectified the rules for lane changing. Then, the wide jams disappear and the revisited model can describe well the realistic bidirectional traffic.
description: 9 pages, 7 figures. Figures 2 and 3 can be uploaded from the PLA web site
Intertwining of magnetism and charge ordering in kagome FeGe
Creators: name: Shao, Sen
name: Yin, Jia-Xin
name: Belopolski, Ilya
name: You, Jing-Yang
name: Hou, Tao
name: Chen, Hongyu
name: Jiang, Yuxiao
name: Hossain, Md Shafayat
name: Yahyavi, Mohammad
name: Hsu, Chia-Hsiu
name: Feng, Yuan Ping
name: Bansil, Arun
name: Hasan, M. Zahid
name: Chang, Guoqing
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Recent experiments report a charge density wave (CDW) in the antiferromagnet FeGe, but the nature of the charge ordering and the associated structural distortion remains elusive. We discuss the structural and electronic properties of FeGe. Our proposed ground state phase accurately captures atomic topographies acquired by scanning tunneling microscopy. We show that the 2$\times$2$\times$1 CDW likely results from the Fermi surface nesting of hexagonal-prism-shaped kagome states. FeGe is found to exhibit distortions in the positions of the Ge atoms instead of the Fe atoms in the kagome layers. Using in-depth first-principles calculations and analytical modeling, we demonstrate that this unconventional distortion is driven by the intertwining of magnetic exchange coupling and CDW interactions in this kagome material. Movement of Ge atoms from their pristine positions also enhances the magnetic moment of the Fe kagome layers. Our study indicates that magnetic kagome lattices provide a material candidate for exploring the effects of strong electronic correlations on the ground state and their implications for transport, magnetic, and optical responses in materials.
Economic Crisis and Smes’ Behavior: An Analysis on the Furniture Sector in Italy
Creators: name: Cioppi, Marco
name: Musso, Fabio
name: Savelli, Elisabetta
Publisher: name: International Journal of Economic Behavior
Year: 2014

description: This paper examines the results of a case study analysis carried out on five small and medium-sized enterprises (SMEs) operating in the furnishing sector of an Italian province. The aim of the study was to analyze which kind of strategies SMEs are adopting in order to face the economic crisis started in 2008. The cases analyzed highlighted the ability of firms in reacting by the development a proactive strategy, which brought them to positive economic results over time. Discussion of results and managerial implications are suggested in order to properly address other enterprises acting in similar market condition. Classification-JEL: L10, L21, M10, M1 Keywords: strategy, economic crisis, SMEs, firm's performance
description: International Journal of Economic Behavior, Vol 4, No 1 (2014): International Journal of Economic Behavior
Additional file 1 of Which endometrial preparation protocol provides better pregnancy and perinatal outcomes for endometriosis patients in frozen-thawed embryo transfer cycles? A retrospective study on 1413 patients
Creators: name: Guo, Yaxin
name: Fang, Zishui
name: Yu, Lin
name: Sun, Xin
name: Li, Fei
name: Jin, Lei
Publisher: name: figshare
Year: 2023
Subjects: Medicine
Cell Biology
Pharmacology
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Mathematical Sciences not elsewhere classified
Science Policy

description: Additional file 1: Supplemental Figure 1. Data selection process.
The Economic Impact of Productive Safety Net Program on Poverty: Evidence from Household Survey Data, Tigrai National Regional State, Ethiopia
Creators: name: Gebresilassie, Yibrah Hagos
Publisher: name: International Journal of Economic Behavior
Year: 2014

description: This paper aims at evaluating the impact of productive safety net program on poverty using primary data from randomly selected 600 households in central zone of Tigrai National Regional State, Ethiopia. Propensity Score Matching and Foster-Greer-Thorbecke were used to evaluate impact of the program and poverty, respectively. The paper revealed that the program has positive and significant effect on consumption, livestock holdings, and productive assets. Moreover, impact of the program on total consumption expenditure per adult equivalent was found to be positive and significant. Using total poverty line, poverty rate was lowest among program participants (30.33%) than non-participants (31.1%). Highest poverty rate was found among households headed by women (38.42%) while households headed by men (23.1%). The study also revealed that the program has positive and significant effect on poverty reduction and protecting productive assets. Finally, it was recommended that female headed program participants based programs should be provided to help boost their agricultural output and reduce endemic poverty. Classification-JEL: C Keywords: asset; consumption per adult equivalent; productive safety net program; propensity score matching; poverty; Tigrai
description: International Journal of Economic Behavior, Vol 4, No 1 (2014): International Journal of Economic Behavior
Inflation Driven by Non-Linear Electrodynamics
Creators: name: Benaoum, H. B.
name: Leon, Genly
name: Ovgun, A.
name: Quevedo, H.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the inflation driven by a nonlinear electromagnetic field based on an NLED lagrangian density ${\cal L}_{\text{nled}} = - {F} f \left( {F} \right)$, where $f \left( {F}\right)$ is a general function depending on ${F}$. We first formulate an $f$-NLED cosmological model with a more general function $f \left( {F}\right)$ and show that all NLED models can be expressed in this framework; then, we investigate in detail two interesting examples of the function $f \left( {F}\right)$. We present our phenomenological model based on a new Lagrangian for NLED. Solutions to the field equations with the physical properties of the cosmological parameters are obtained. We show that the early Universe had no Big-Bang singularity, which accelerated in the past. We also investigate the qualitative implications of NLED by studying the inflationary parameters, like the slow-roll parameters, spectral index $n_s$, and tensor-to-scalar ratio $r$, and compare our results with observational data. Detailed phase-space analysis of our NLED cosmological model is performed with and without matter source. As a first approach, we consider the motion of a particle of unit mass in an effective potential. Our systems correspond to fast-slow systems for physical values of the electromagnetic field and the energy densities at the end of inflation. We analyze a complementary system using Hubble-normalized variables to investigate the cosmological evolution before the matter-dominated Universe.
description: 27 pages, 13 compound figures
Schwinger Type Pair Production in Non-SUSY AdS/CFT
Creators: name: Chowdhury, Udit Narayan
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study pair production of particles in presence of an external electric field in a large N Non-supersymmetric Yang Mills theory using the holographic duality. We numerically calculate the inter-quark potential profile and the effective potential to study pair production and analytically find out the threshold electric field beyond which one gets catastrophic pair creation by studying rectangular Wilson loops using the holographic method. We also find out the pair production rate of particles in presence of an external electric field by evaluating circular Wilson loops using perturbative methods. We infer that the vacuum of the Non-SuSy gauge theory is unstable for a range of Non-supersymmetric parameter.
description: Published Version