cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On Non Commutative G2 structure
Creators: name: Belhaj, A.
name: del Moral, M. P. Garcia
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using an algebraic orbifold method, we present non-commutative aspects of $G_2$ structure of seven dimensional real manifolds. We first develop and solve the non commutativity parameter constraint equations defining $G_2$ manifold algebras. We show that there are eight possible solutions for this extended structure, one of which corresponds to the commutative case. Then we obtain a matrix representation solving such algebras using combinatorial arguments. An application to matrix model of M-theory is discussed.
description: 16 pages, Latex. Typos corrected, minor changes. Version to appear in J. Phys.A: Math.Gen.(2005)
title: Xanthogranulomatous pyelonephritis – typical imaging features of an uncommon disease
Creators: name: Gago, Miguel Franco
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Uroradiology & genital male imaging
subject: Abdomen
subject: Kidney
subject: Urinary Tract / Bladder
subject: Conventional radiography
subject: CT
subject: Infection
subject: Clinical Cases

description: Clinical History: A 64-year-old female presented to the ER mentioning a 2-months history of slight flank pain, fatigue and weight loss. Laboratory investigation revealed anaemia and elevated inflammatory parameters. An abdominal radiograph was obtained revealing a staghorn calculus in the left kidney. An abdominal CT-scan was deemed necessary for further investigation.

description: 64 years, female
Landscape, the Scale of SUSY Breaking, and Inflation
Creators: name: Kallosh, Renata
name: Linde, Andrei
Publisher: name: arXiv
Year: 2004
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: We argue that in the simplest version of the KKLT model, the maximal value of the Hubble constant during inflation cannot exceed the present value of the gravitino mass, H< m_{3/2}. This may have important implications for string cosmology and for the scale of the SUSY breaking in this model. If one wants to have inflation on high energy scale, one must develop phenomenological models with an extremely large gravitino mass. On the other hand, if one insists that the gravitino mass should be O(1 TeV), one will need to develop models with a very low scale of inflation. We show, however, that one can avoid these restrictions in a more general class of KKLT models based on the racetrack superpotential with more than one exponent. In this case one can combine a small gravitino mass and low scale of SUSY breaking with the high energy scale of inflation.
description: 7 pages, 4 figs, revtex, typos corrected
Geographical Diversification in Agriculture: An Applied Case to Western U.S. Wheat Growers
Creators: name: Larsen, Ryan A.
name: Mjelde, James W.
name: Klinefelter, Danny A.
name: Wolfley, Jared L.
name: Larsen, Ryan A.
name: Mjelde, James W.
name: Klinefelter, Danny A.
name: Wolfley, Jared L.
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agribusiness
subject: Crop Production/Industries
subject: Farm Management
subject: Risk and Uncertainty
subject: Yield Correlations
subject: Geographical Diversification
subject: Farm Management

description: Yield correlations between 380 different counties are calculated for non-irrigated wheat. Using this data, a function is estimated that shows the relationship between correlation and changes in geographic and climate data. In addition movement variables are included added to the specification to capture the impact of moving from one production region to another. A negative relationship was found between changes in latitude, longitude, precipitation, elevation, and temperature. Correlations and longitude and precipitation showed downward sloping concave relationship, whereas correlations and latitude showed downward sloping convex relationships. Changes in latitude and longitude are found to have greatest impact on correlation with elasticities of -1.54 and -1.
Proton Structure Functions from an AdS/QCD model with a deformed background
Creators: name: Capossoli, Eduardo Folco
name: Contreras, Miguel Angel Martín
name: Li, Danning
name: Vega, Alfredo
name: Boschi-Filho, Henrique
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this work we study unpolarized spin $1/2$ baryonic deep inelastic scattering (DIS) in the regime of large Bjorken parameter $x$. We calculate the corresponding structure functions $F_{1,2}(x,q^2)$. Our approach is based on an AdS/QCD model with a deformed background, where we consider an exponential factor in the AdS$_5$ metric. Such a deformation implies the introduction of an anomalous dimension in the model. Our results for the structure functions are consistent with those found in the literature from experimental data.
description: V2: 25 pages, 6 figures, 1 table. Text improved. Typos corrected. New references added. Results unchanged. This version matches the published one in PRD
Impacts of China's Food Consumption on U.S. Soybean Exports
Creators: name: Chen, Wei
name: Marchant, Mary A.
name: Song, Baohui
name: Chen, Wei
name: Marchant, Mary A.
name: Song, Baohui
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agribusiness
subject: International Relations/Trade
subject: China's Soybean Imports
subject: U.S. Soybean Exports
subject: South American Soybean Exports
subject: Price Elasticities
subject: Soybean Crushing Ratios
subject: Marke Clear
subject: GMM

description: A model examines how the international and China’s market prices impact China’s soybean imports from the U.S. and South America. Based on soybean crushing ratios and a market clearing presumption, an equation of China’s soybean oil import prices is designed to achieve the goal.
title: Universität Kassel, Vorlesungsverzeichnis WiSe 2007 / 2008
Creators: name: (:Unkn) Unknown
Publisher: name: Universität Kassel
Year: 2007
Subjects: subject: 350
subject: 370
subject: Universität Kassel
subject: Vorlesungsverzeichnis

description: PDF zum Online-Vorlesungsverzeichnis
Composición de relaciones y $τ$-factorizaciones
Creators: name: Oyuela, David Fernando Méndez
Publisher: name: arXiv
Year: 2020
Subjects: subject: Commutative Algebra (math.AC)
subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: The theory of $τ$-factorizations on integral domains was developed by Anderson and Frazier. This theory characterized all the known factorizations and opened the opportunity to create new ones. It can be visualized as a restriction to the structure's multiplicative operation, by considering a symmetric relation $τ$ on the set of non-zero non-unit elements of an integral domain. The main goal of this work is to study the $τ$-factorization concept, when $τ$ is a composition of two or more relations. To achieve this, the specific properties one can obtain from the given relations are verified and analyzed. Some of the studied properties which are the most known include: reflexivity, symmetry, transitivity, antisymmetry. And others related to the $τ$-factorization theory, like: divisive, associate-preserving and multiplicative relations.
description: in Spanish
Structural Transition of Actin Filament in a Cell-Sized Water Droplet with a Phospholipid Membrane
Creators: name: Hase, M.
name: Yoshikawa, K.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Actin filament, F-actin, is a semiflexible polymer with a negative charge, and is one of the main constituents on cell membranes. To clarify the effect of cross-talk between a phospholipid membrane and actin filaments in cells, we conducted microscopic observations on the structural changes in actin filaments in a cell-sized (several tens of micrometers in diameter) water droplet coated with a phospholipid membrane such as phosphatidylserine (PS; negatively-charged head group) or phosphatidylethanolamine (PE; neutral head group) as a simple model of a living cell membrane. With PS, actin filaments are distributed uniformly in the water phase without adsorption onto the membrane surface between 2 and 6 mM Mg2+, while between 6 and 12 mM Mg2+, actin filaments are adsorbed onto the inner membrane surface. With PE, actin filaments are uniformly adsorbed onto the inner membrane surface between 2 and 12 mM Mg2+. With both PS and PE membranes, at Mg2+ concentrations higher than 12 mM, thick bundles are formed in the bulk water droplet accompanied by the dissolution of actin filaments from the membrane surface. The attraction between actin filaments and membrane is attributable to an increase in the translational entropy of counterions accompanied by the adsorption of actin filaments onto the membrane surface. These results suggest that a microscopic water droplet coated with phospholipid can serve as an easy-to-handle model of cell membranes.
The Impact of Labor Constraints on the Farm Performance
Creators: name: Santos, Florence Ivy M.
name: Park, Timothy A.
name: Escalante, Cesar L.
name: Santos, Florence Ivy M.
name: Park, Timothy A.
name: Escalante, Cesar L.
Publisher: name: Unknown
Year: 2009
Subjects: Agricultural Finance
Production Economics
Productivity Analysis

description: Stricter immigration policies that affect an estimated 12 million unauthorized immigrants, 40% of whom are hired as farm workers, can potentially leave the highly labor-dependent organic farms more economically vulnerable. The displacement of unauthorized immigrants will expectedly create labor shortages. This study analyzes the impact of hiring constraints and changes in farm labor market conditions (due to stricter immigration policies) on the technical efficiency and financial performance of organic and conventional farms. A production function approach is used to analyze survey data that has a mix of organic and conventional farms in the Southeast region. Adjustment strategies to deal with labor shortage and providing workers with nonwage incentives have been determined to be an important determinant of farm income. Among the strategies, adjustment of wage and nonwage benefits were found to be the most effective but a combination of strategies is the most preferred approach to deal with labor shortage. Furthermore, we found productivity difference between farmers with labor shortage adjustment strategies and those who do not.
Fano diagonalization of a polariton model for an inhomogeneous absorptive dielectric
Creators: name: Suttorp, L. G.
name: van Wonderen, A. J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Hamiltonian of a polariton model for an inhomogeneous linear absorptive dielectric is diagonalized by means of Fano's diagonalization method. The creation and annihilation operators for the independent normal modes are explicitly found as linear combinations of the canonical operators. The coefficients in these combinations depend on the tensorial Green function that governs the propagation of electromagnetic waves through the dielectric. The time-dependent electromagnetic fields in the Heisenberg picture are given in terms of the diagonalizing operators. These results justify the phenomenological quantization of the electromagnetic field in an absorptive dielectric.
description: 7 pages, to be published in Europhysics Letters
title: Primary breast lymphoma – multimodality imaging features of a rare entity
Creators: name: Costa, Ana Sofia Gomes
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Breast imaging
subject: Breast
subject: Mammography
subject: MR
subject: PET
subject: Ultrasound
subject: Clinical Cases

description: Clinical History: A 63-year-old woman was referred to a breast clinic due to 3-month history of a painless palpable breast mass. Patient had a history of surgical excision of benign breast lesions. Clinical examination revealed two nodules in the right breast, with no skin or nipple changes. No axillary lymphadenopathy was detected.

description: 63 years, female
title: Duplication of the pituitary gland
Creators: name: Sheehan, Matylda
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Paediatric radiology
subject: Neuroradiology brain
subject: Paediatric
subject: CT
subject: MR
subject: Clinical Cases

description: Clinical History: A 5-year-old girl was referred to the radiology department for investigation of developmental delay and suspected focal seizures. Dysmorphic features included hypertelorism, flat nasal bridge, bifid tongue, cleft lip and palate. She had mild global developmental delay and at the age of 4, she presented with staring events with abnormal oral movements. 

description: 5 years, female
АМИР АБДУЛАҲАДХОННИНГ ИСЛОҲОТЧИЛИК ФАОЛИЯТИ
Creators: name: Маҳмудова, Гулҳаё
Publisher: name: Zenodo
Year: 2024

description: XIX аср охирига келиб Бухоро Амирлиги ўзининг сиёсий-иқтисодий, ҳарбий мустақиллигини йуқотиб, рус давлатига қарам бўлиб қолади. Сўнгги манғит амирларидан бўлган Абдулаҳадхон (1857-1910; ҳукмронлик йиллари: 1885-1910) даврида эса мамлакат қарамлигига қарамай кўплаб ислоҳотчилик ишлари амалга оширилган.
Market Differentiation Potential of Country-of-origin, Quality and Traceability Labeling
Creators: name: Verbeke, Wim
name: Roosen, Jutta
name: Verbeke, Wim
name: Roosen, Jutta
Publisher: name: Unknown
Year: 2009
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: International Relations/Trade
subject: consumer
subject: country of origin
subject: labeling
subject: quality
subject: traceability

description: Product labeling has gained considerable attention recently, as a means to both provide product-specific information and reduce quality uncertainty faced by consumers, as well as from a regulatory point of view. This article focuses on whether and to what extent origin, quality and traceability labeling is an appropriate way to differentiate food products. The focus is on fresh meat and fresh fish, two mainly generic food product categories with a high degree of credence character. Insights into the potential for market differentiation through origin, quality and traceability labeling are provided and discussed using primary data collected during the period 2000-2005 by means of four consumer surveys. In general, direct indications of quality, including mandatory information cues such as best-before dates and species names, but also including quality marks, are found to be more appealing to consumers in general than origin labeling, and the latter more than traceability. The different studies yield the conclusion that the market differentiation potential of origin and quality labeling pertains mainly to a product’s healthiness appeal, and this potential seems stronger for meat than for fish. The differentiation potential of traceability per se is rather limited. Instead, traceability is needed as the regulatory and logistic backbone for providing guarantees related to origin and quality.
Superhyperfine induced photon-echo collapse of erbium in Y$_2$SiO$_5$
Creators: name: Car, B.
name: Gouët, J. -L. Le
name: Chanelière, T.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the decoherence of Er$^{3+}$ in Y$_2$SiO$_5$ at low magnetic fields using the photon-echo technique. We reproduce accurately a variety of the decay curves with a unique coherence time by considering the so-called superhyperfine modulation induced by a large number of neighbouring spins. There is no need to invoke any characteristic time of the spin fluctuations to reproduce very different decay curves. The number of involved nuclei increases when the magnetic is lowered. The experiment is compared with a model associating 100 surrounding ions with their exact positions in the crystal frame. We also derive an approximate spherical model (angular averaging) to interpret the main feature the observed decay curves close to zero-field.
The Nature and Function of Geographical Indications in Law
Creators: name: Ibele, Erik W.
name: Ibele, Erik W.
Publisher: name: Unknown
Year: 2009
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: International Relations/Trade
subject: geographical indications
subject: intellectual property
subject: Origin Regulation
subject: trademarks
subject: TRIPS
subject: WTO

description: There are two basic types of legal regime for the protection of geographical indications (GIs). Some systems, notably that of the European Union, define and treat GIs as a distinct type of intellectual property. This approach is also reflected in the provisions concerning GIs in the Agreement on Trade-Related Aspects of Intellectual Property Rights (TRIPS Agreement). Other legal systems, notably those of Australia, Canada and the United States, treat GIs as a subcategory of trademarks. Like trademarks, GIs function principally as a means of providing information to consumers. EU legislation and jurisprudence, however, define GIs more expansively than do trademark-based legal systems, and see GIs as in some ways superior to trademarks. The EU is attempting to incorporate other features of its system of GI protection into the WTO/TRIPS system. But the nature of GIs is somewhat at odds with that of other types of intellectual property.
Learning Accurate Business Process Simulation Models from Event Logs via Automated Process Discovery and Deep Learning
Creators: name: Camargo, Manuel
name: Dumas, Marlon
name: González-Rojas, Oscar
Publisher: name: Zenodo
Year: 2021
Subjects: Process Mining
Data-driven simulation
Deep learning

description: Data and generative models for research article Learning Accurate Business Process Simulation Models from Event Logs via Automated Process Discovery and Deep Learning. This record contains the complete and partitioned event logs, deep learning generative models (*.h5 format), simulation models for the BIMP simulator (*.bpmn format), and all the raw and summarized results of the paper. The source code of the DeepSimulator tool can be found at DeepSimulator. The source code of the Simod tool can be found at Simod. The source code of the DeepGenerator approach can be found at DeepGenerator. The source code of the LSTM(GAN) adaptation approach can be found at LSTM(GAN). The models and raw results regarding this baseline can be found here.
Aesthetics with a Trans-Caribbean Filter
Creators: name: Lefrançois, Frédéric
Publisher: name: figshare
Year: 2020
Subjects: Art

description: Could New World Art constitute the locus of the transfer between antagonistic libidinal, poly-traumatic economies? If the artist born in the Americas cannot overlook the weight of the slave trade, of slavery and colonization, in virtue of their quality as founding traumas, then the fragmentation induced by all their breaking-lines represents a real aesthetic and political challenge. Consequently, two opposite paths can be envisaged: to opt for unconscious scarring by way of oblivion, or to accept traumatic memory so as to aestheticize resistance against cultural genocide. In the French and English-speaking Caribbean, this dilemma has tormented the aesthetic consciousness of three successive generations of artists inheriting a traumatic bequeathal, like the Jewish artists-legatees of the Shoah. What should be done with this inheritance? Should one engage oneself on the path of oblivion, or even negation, and thus follow the example of amnesia proselytes, under the pretext of “progress”? Or should one assume fully the burden of this heritage and transmute it into a principle of aesthetic creation helping to preserve cultural memories and identities? It is a contention of this essay to answer this question by correlating the evolution of two Caribbean artistic movements with similar aspirations: the Atelier 45, born in Martinique, and the Jamaican Art Movement which appeared in Jamaica.
Excitation spectrum of doped two-leg ladders: A field theory analysis
Creators: name: Controzzi, D.
name: Tsvelik, A. M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We apply quantum field theory to study the excitation spectrum of doped two-leg ladders. It follows from our analysis that throughout most of the phase diagram the spectrum consists of degenerate quartets of kinks and anti-kinks and a multiplet of vector particles split according to the symmetry of the problem as 3 + 2 +1. This basic picture experiences corrections when one moves through the phase diagram. In some regions the splitting may become very small and in others it is so large that some multiplets are pushed in the continuum and become unstable. At second order transition lines masses of certain particles vanish. Very close to the first order transition line additional generations of particles emerge. Strong interactions in some sectors may generate additional bound states (like breathers) in the asymmetric charge sector. We briefly describe the properties of various correlation functions in different phases.
description: Final version to appear on PRB
The Provisions on Geographical Indications in the TRIPS Agreement
Creators: name: Geuze, Matthijs
name: Geuze, Matthijs
Publisher: name: Unknown
Year: 2009
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: International Relations/Trade
subject: agriculture
subject: geographical indications
subject: intellectual property
subject: WIPO
subject: WTO

description: This article provides an overview of the provisions on geographical indications contained in the TRIPS Agreement and how they came about in the Uruguay Round of multilateral trade negotiations, which took place from 1986 to 1994 and resulted in the establishment of the World Trade Organization. The article underscores the difficulties involved in arriving at international standards in this area of intellectual property by putting the TRIPS provisions on geographical indications in their historical perspective of more than 120 years of international negotiations and by explaining their compromise character in the context of the single undertaking of the Uruguay Round and the continuing discussions at the international level, notably under the Doha Development Agenda.
Can Foreign Producers Benefit from Geographical Indications under the New European Regulation?
Creators: name: Marette, Stephan
name: Marette, Stephan
Publisher: name: Unknown
Year: 2009
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: International Relations/Trade
subject: geographical indications
subject: regulation
subject: quality

description: This article discusses some economic issues linked to the 2006 European regulation regarding geographical indications. Economic implications of this regulation for foreign producers are investigated. The article examines whether or not the development of a geographical indication is a profitable strategy for foreign producers. The discussion here concludes that geographical indications may allow such producers access to a high-quality segment of the market, but efficient quality management is a necessary condition for reaching such a segment.
Federated Learning and Differential Privacy: Software tools analysis, the Sherpa.ai FL framework and methodological guidelines for preserving data privacy
Creators: name: Rodríguez-Barroso, Nuria
name: Stipcich, Goran
name: Jiménez-López, Daniel
name: Ruiz-Millán, José Antonio
name: Martínez-Cámara, Eugenio
name: González-Seco, Gerardo
name: Luzón, M. Victoria
name: Veganzones, Miguel Ángel
name: Herrera, Francisco
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Cryptography and Security (cs.CR)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: I.2.11
subject: 68T01

description: The high demand of artificial intelligence services at the edges that also preserve data privacy has pushed the research on novel machine learning paradigms that fit those requirements. Federated learning has the ambition to protect data privacy through distributed learning methods that keep the data in their data silos. Likewise, differential privacy attains to improve the protection of data privacy by measuring the privacy loss in the communication among the elements of federated learning. The prospective matching of federated learning and differential privacy to the challenges of data privacy protection has caused the release of several software tools that support their functionalities, but they lack of the needed unified vision for those techniques, and a methodological workflow that support their use. Hence, we present the Sherpa.ai Federated Learning framework that is built upon an holistic view of federated learning and differential privacy. It results from the study of how to adapt the machine learning paradigm to federated learning, and the definition of methodological guidelines for developing artificial intelligence services based on federated learning and differential privacy. We show how to follow the methodological guidelines with the Sherpa.ai Federated Learning framework by means of a classification and a regression use cases.
description: 46 pages, 5 figures
Protection against the man-in-the-middle-attack for the Kirchhoff-loop-Johnson(-like)-noise cipher and expansion by voltage-based security
Creators: name: Kish, Laszlo B.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: It is shown that the original Kirchhoff-loop-Johnson(-like)-noise (KLJN) cipher is naturally protected against the man-in-the-middle (MITM) attack, if the eavesdropper is using resistors and noise voltage generators just like the sender and the receiver. The eavesdropper can extract zero bit of information before she is discovered. However, when the eavesdropper is using noise current generators, though the cipher is protected, the eavesdropper may still be able to extract one bit of information while she is discovered. For enhanced security, we expand the KLJN cipher with the comparison of the instantaneous voltages via the public channel. In this way, the sender and receiver has a full control over the security of measurable physical quantities in the Kirchhoff-loop. We show that when the sender and receiver compare not only their instantaneous current data but also their instantaneous voltage data then the zero-bit security holds even for the noise current generator case. We show that the original KLJN scheme is also zero-bit protected against that type of MITM attack when the eavesdropper uses voltage noise generators, only. In conclusion, within the idealized model scheme, the man-in-the-middle-attack does not provide any advantage compared to the regular attack considered earlier. The remaining possibility is the attack by a short, large current pulse, which described in the original paper as the only efficient type of regular attacks, and that yields the one bit security. In conclusion, the KLJN cipher is superior to known quantum communication schemes in every respect, including speed, robustness, maintenance need, price and its natural immunity against the man-in-the-middle attack.
description: Published
title: Acute fibrinous and organizing pneumonia (AFOP)
Creators: name: Forjaco, Ana
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Chest imaging
subject: Thorax
subject: Conventional radiography
subject: CT
subject: Clinical Cases

description: Clinical History: A 36-year-old woman with history of hypertrophic cardiomyopathy, awaiting heart transplant, developed a 2-month clinical condition of progressive low-grade fever and dry cough, refractory to multiple cycles of antibiotics. Laboratory exams presented leukocytosis (17.000x109/mL) with neutrophilia and pronounced C-reactive protein elevation (260mg/dL). The remaining laboratory investigations were unremarkable.

description: 36 years, female
Drinfeld Twists and Algebraic Bethe Ansatz of the Supersymmetric t-J Model
Creators: name: Yang, Wen-Li
name: Zhang, Yao-Zhong
name: Zhao, Shao-You
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: High Energy Physics - Theory (hep-th)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We construct the Drinfeld twists (factorizing $F$-matrices) for the supersymmetric t-J model. Working in the basis provided by the $F$-matrix (i.e. the so-called $F$-basis), we obtain completely symmetric representations of the monodromy matrix and the pseudo-particle creation operators of the model. These enable us to resolve the hierarchy of the nested Bethe vectors for the $gl(2|1)$ invariant t-J model.
description: 23 pages, no figure, Latex file, minor misprints are corrected
A Learning Framework for n-bit Quantized Neural Networks toward FPGAs
Creators: name: Chen, Jun
name: Liu, Liang
name: Liu, Yong
name: Zeng, Xianfang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Signal Processing (eess.SP)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The quantized neural network (QNN) is an efficient approach for network compression and can be widely used in the implementation of FPGAs. This paper proposes a novel learning framework for n-bit QNNs, whose weights are constrained to the power of two. To solve the gradient vanishing problem, we propose a reconstructed gradient function for QNNs in back-propagation algorithm that can directly get the real gradient rather than estimating an approximate gradient of the expected loss. We also propose a novel QNN structure named n-BQ-NN, which uses shift operation to replace the multiply operation and is more suitable for the inference on FPGAs. Furthermore, we also design a shift vector processing element (SVPE) array to replace all 16-bit multiplications with SHIFT operations in convolution operation on FPGAs. We also carry out comparable experiments to evaluate our framework. The experimental results show that the quantized models of ResNet, DenseNet and AlexNet through our learning framework can achieve almost the same accuracies with the original full-precision models. Moreover, when using our learning framework to train our n-BQ-NN from scratch, it can achieve state-of-the-art results compared with typical low-precision QNNs. Experiments on Xilinx ZCU102 platform show that our n-BQ-NN with our SVPE can execute 2.9 times faster than with the vector processing element (VPE) in inference. As the SHIFT operation in our SVPE array will not consume Digital Signal Processings (DSPs) resources on FPGAs, the experiments have shown that the use of SVPE array also reduces average energy consumption to 68.7% of the VPE array with 16-bit.
description: This paper has been accepted for publication in the IEEE Transactions on Neural Networks and Learning Systems
The Benefits and Costs of Proliferation of Geographical Labeling for Developing Countries
Creators: name: Anders, Sven M.
name: Caswell, Julie A.
name: Anders, Sven M.
name: Caswell, Julie A.
Publisher: name: Unknown
Year: 2009
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: International Relations/Trade
subject: developing countries
subject: geographical labeling
subject: international trade
subject: TRIPS

description: Food product attributes related to geographical origins are a topical issue in global food trade. The provision of geographical labeling may occur through geographical indications under the mandated trade rules of the TRIPS Agreement, through trademarks, or through country-of-origin labeling. The overall effect of the expansion of geographical labeling on developing countries depends on a complex mix of market opportunities that may yield substantial benefits as well as implementation costs. Increasingly, the analysis of this overall effect will need to evaluate the joint impacts of different forms of geographical labeling on the market position of developing countries.
The dark side of energy transport along excitonic wires: On-site energy barriers facilitate efficient, vibrationally-mediated transport through optically dark subspaces
Creators: name: Davidson, Scott
name: Fruchtman, Amir
name: Pollock, Felix
name: Gauger, Erik
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a novel, counter-intuitive method, based on dark state protection, for significantly improving exciton transport efficiency through `wires' comprising a chain of molecular sites with an intrinsic energy gradient. Specifically, by introducing `barriers' to the energy landscape at regular intervals along the transport path, we find that undesirable radiative recombination processes are suppressed due to a clear separation of sub-radiant and super-radiant eigenstates in the system. This, in turn, can lead to an improvement in transmitted power by many orders of magnitude, even for very long chains. From there, we analyse the robustness of this phenomenon to changes in both system and environment properties to show that this effect can be beneficial over a range of different thermal and optical environment regimes. Finally, we show that the novel energy landscape presented here may provide a useful foundation for overcoming the short length scales over which exciton diffusion typically occurs in organic photo-voltaics and other nanoscale transport scenarios, thus leading to considerable potential improvements in the efficiency of such devices.
title: Enlarged uterus
Creators: name: Delgado Fernández, Laura
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Genital (female) imaging
subject: Genital / Reproductive system female
subject: CT
subject: MR
subject: Lymphoma
subject: Clinical Cases

description: Clinical History: A 48-year-old woman was admitted with abdominal pain and distension for a week, with no analgesic improvement, and vaginal bleeding. On physical exploration, cervix hypertrophy was found.

Ultrasound demonstrated an enlarged uterus with myomas and polyps, previously known. 

description: 48 years, female
Environmental Labeling, Protected Geographical Indications and the Interests of Developing Countries
Creators: name: Grote, Ulrike
name: Grote, Ulrike
Publisher: name: Unknown
Year: 2009
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: International Relations/Trade
subject: developing countries
subject: geographical indications
subject: labeling
subject: WTO

description: Among developing countries, one can identify both proponents and opponents of extending the use of geographical indications (GIs) beyond wines and spirits. Such an extension is currently being discussed under the Agreement on Trade-Related Aspects of Intellectual Property Rights (TRIPS) of the World Trade Organization. While labeling is mostly based on private initiatives, GIs are considered to be long-term public rights. Proponents therefore regard GIs as the stronger tools for protecting their national property rights and offering them new opportunities to develop their export markets. Opponents, however, consider GIs to be new barriers to trade that impede their export opportunities. This article clarifies these positions and pulls together some evidence on costs and benefits related to GIs versus labels.
Occurrence of normal and anomalous diffusion in polygonal billiard channels
Creators: name: Sanders, David P.
name: Larralde, Hernan
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: From extensive numerical simulations, we find that periodic polygonal billiard channels with angles which are irrational multiples of pi generically exhibit normal diffusion (linear growth of the mean squared displacement) when they have a finite horizon, i.e. when no particle can travel arbitrarily far without colliding. For the infinite horizon case we present numerical tests showing that the mean squared displacement instead grows asymptotically as t log t. When the unit cell contains accessible parallel scatterers, however, we always find anomalous super-diffusion, i.e. power-law growth with an exponent larger than 1. This behavior cannot be accounted for quantitatively by a simple continuous-time random walk model. Instead, we argue that anomalous diffusion correlates with the existence of families of propagating periodic orbits. Finally we show that when a configuration with parallel scatterers is approached there is a crossover from normal to anomalous diffusion, with the diffusion coefficient exhibiting a power-law divergence.
description: 9 pages, 15 figures. Revised after referee reports: redrawn figures, additional comments. Some higher quality figures available at http://www.fis.unam.mx/~dsanders
European Food Quality Policy: The Importance of Geographical Indications, Organic Certification and Food Quality Assurance Schemes in European Countries
Creators: name: Becker, Tilman C.
name: Becker, Tilman C.
Publisher: name: Unknown
Year: 2009
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: International Relations/Trade
subject: European Union
subject: food quality
subject: geographic indicators
subject: regional differences

description: In the early 1990s reform of the EU’s Common Agricultural Policy led to a change in emphasis away from price into policies to promote rural development, in part through improvements to food quality. Geographic indicators are only one of a range of EU policies designed to foster these goals. Geographic indicators are put within the context of the wider quality enhancement policies that include quality assurance schemes and organic production. There appears to be considerable regional differences within the EU when it comes to the use of the various quality-enhancing policies available. The member states of the EU can be grouped into four different clusters, each characterized by a different quality policy strategy.
АМИР АБДУЛАҲАДНИНГ ТАХТ САРИ ЙЎЛИ
Creators: name: Маҳмудова, Гулҳаё
Publisher: name: Zenodo
Year: 2024

description: Бухоро амирлигида манғитлар сулоласи 1756-1920 йилларда ҳукмронлик қилган. Афсуски, сулоланинг сўнгги йирик вакилларидан бири бўлган Амир Саид Абдулаҳадхоннинг ҳаёти ва сиёсий фаолияти бугунги кунгача етарли тадқиқ қилинмаган.
A $d = 3$ dimensional model with two $U(1)$ gauge fields coupled via matter fields and BF interaction
Creators: name: Rapoport, Alan
name: Schaposnik, Fidel A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study a model in $d = 2 + 1$ space-time dimensions with two sectors. One of them, which can be considered as the visible sector, contains just a $U(1)$ gauge field which acts as a probe for the other (hidden) sector, given by a second $U(1)$ gauge field and massive scalar and Dirac fermions. Covariant derivatives of these matter fields and a BF gauge mixing term couple the two sectors. Integration over fermion fields leads to an effective theory with Chern-Simons terms that support vortex like solutions in both sectors even if originally there was no symmetry breaking Higgs scalar in the visible sector. We study numerically the solutions which correspond to electrically charged magnetic vortices except for a critical value of the BF coupling constant at which solely purely magnetic vortices exist.
Voltage probe model of spin decay in a chaotic quantum dot, with applications to spin-flip noise and entanglement production
Creators: name: Michaelis, B.
name: Beenakker, C. W. J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The voltage probe model is a model of incoherent scattering in quantum transport. Here we use this model to study the effect of spin-flip scattering on electrical conduction through a quantum dot with chaotic dynamics. The spin decay rate gamma is quantified by the correlation of spin-up and spin-down current fluctuations (spin-flip noise). The resulting decoherence reduces the ability of the quantum dot to produce spin-entangled electron-hole pairs. For gamma greater than a critical value gamma_c, the entanglement production rate vanishes identically. The statistical distribution P(gamma_c) of the critical decay rate in an ensemble of chaotic quantum dots is calculated using the methods of random-matrix theory. For small gamma_c this distribution is proportional to gamma_c^(-1+beta/2), depending on the presence (beta=1) or absence (beta=2) of time-reversal symmetry. To make contact with experimental observables, we derive a one-to-one relationship between the entanglement production rate and the spin-resolved shot noise, under the assumption that the density matrix is isotropic in the spin degrees of freedom. Unlike the Bell inequality, this relationship holds for both pure and mixed states. In the tunneling regime, the electron-hole pairs are entangled if and only if the correlator of parallel spin currents is at least twice larger than the correlator of antiparallel spin currents.
description: version 3: corrected a factor of two in Eq. (3.16), affecting the final results
Two-channel approach to the average retarding force of metals for slow singly ionized projectiles
Creators: name: Nagy, I.
name: Aldazabal, I.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Nuclear Theory (nucl-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Based on the fundamental momentum-transfer theorem [Phys. Rev. Lett. 15, 11 (1965)] a novel contribution to the retarding force of metallic systems for slow intruders is derived. This contribution is associated with sudden charge-changing cycles during the path of projectiles. The sum of the novel and the well-known conventional contributions, both expressed in terms of scattering phase shifts, are used to discuss experimental data obtained for different targets. It is found that our two-channel modeling, with two nonlinear channels, improves the agreement between several data and theory and thus, as predictive modeling, can contribute to the desired convergence between experimental and theoretical attempts on the retarding force.
Cosmic Microwave Background Polarization and reionization: constraining models with a double reionization
Creators: name: Colombo, L. P. L.
name: Bernardi, G.
name: Casarini, L.
name: Mainini, R.
name: Bonometto, S. A.
name: Carretti, E.
name: Fabbri, R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Neutral hydrogen around high-z QSO and an optical depth tau ~ 0.17 can be reconciled if reionization is more complex than a single transition at z ~ 6-8. Tracing its details could shed a new light on the first sources of radiation. Here we discuss how far such details can be inspected through planned experiments on CMB large-scale anisotropy and polarization, by simulating an actual data analysis. By considering a set of double reionization histories of Cen (2003) type, a relevant class of models not yet considered by previous works, we confirm that large angle experiments rival high resolution ones in reconstructing the reionization history. We also confirm that reionization histories, studied with the prior of a single and sharp reionization, yield a biased tau, showing that this bias is generic. We further find a monotonic trend in the bias for the models that we consider, and propose an explanation of the trend, as well as the overall bias. We also show that in long-lived experiments such a trend can be used to discriminate between single and double reionization patterns.
description: 8 pages, 11 figures. Substantial rewriting, replaced with accepted version. To be published in A&A
Efficacy and tolerability of alirocumab in Austrian clinical practice – results of the non-interventional PEARL-AT study
Creators: name: Leitner, Deborah R.
name: Toplak, Hermann
name: Kedenko, Ludmilla
name: Steinmaurer, Thomas
name: Gräff, Verena
name: Metzner, Thomas
name: Schwaiger, Elisabeth M.
name: Prager, Rudolf
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Proprotein convertase subtilisin/kexin type 9 inhibition can be an effective treatment in patients with primary hypercholesterolemia, particularly in cases with concomitant coronary heart disease, peripheral artery occlusive disease or cerebrovascular occlusive disease for secondary prevention after an acute atherosclerotic ischemic event. The primary objective of the PEARL-AT study was to assess effectiveness and safety of alirocumab in a real-world setting in Austria. Non-interventional, prospective study conducted across Austria between September 2016 and July 2018. 113 patients, for whom the decision for treatment with alirocumab according to the Austrian Summary of Product Characteristics (SmPC) was made, were enrolled and were followed-up over 24 weeks. The primary endpoint of the study was the average change of low density lipoprotein cholesterol (LDL-C) levels by week 24. In total, 112 patients with at least one post-baseline visit were included. Alirocumab was initiated using 75 mg (57.1%) and 150 mg (42.9%) every two weeks. Average LDL-C levels decreased by 75.0 mg/dl at week 24 in 87 patients with available LDL-C at baseline and week 24 (in 25 patients LDL-C was missing at least at one time point). The mean relative change of LDL-C was −50.0% (median: 57.8%, SD: 28.4). Throughout the study, 46 adverse events were documented in 21 (18.6%) patients. The most frequent adverse events were gastrointestinal disorders. The present data indicate a good overall efficacy of alirocumab in a real-world Austrian population. Effectiveness and safety were both in line with the clinical trial program as well as previous real-world observations.