cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Online Spectral Identification of Dynamical Systems
Creators: name: Boots, Byron
name: Gordon, Geoffrey J.
Publisher: name: Carnegie Mellon University
Year: 2011
Subjects: subject: 170203 Knowledge Representation and Machine Learning
subject: FOS: Psychology

description: Recently, a number of researchers have proposed spectral algorithms for learning models of nonlinear dynamical systems—for example, Hidden Markov Models (HMMs) [1, 2], Partially Observable Markov Decision Processes (POMDPs) [3], and Predictive State Representations (PSRs) [4, 3, 5]. These algorithms are attractive since they are statistically consistent and not subject to local optima. However, they are batch methods: they need to store their entire training data set in memory at once and operate on it as a large matrix, and so they cannot scale to extremely large data sets (either many examples or many features per example). In turn, this restriction limits their ability to learn accurate models of complex systems.
A Quantum-Mechanical Equivalent-Photon Spectrum for Heavy-Ion Physics
Creators: name: Benesh, C. J.
name: Hayes, A. C.
name: Friar, J. L.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In a previous paper, we calculated the fully quantum-mechanical cross section for electromagnetic excitation during peripheral heavy-ion collisions. Here, we examine the sensitivity of that cross section to the detailed structure of the projectile and target nuclei. At the transition energies relevant to nuclear physics, we find the cross section to be weakly dependent on the projectile charge radius, and to be sensitive to only the leading momentum-transfer dependence of the target transition form factors. We exploit these facts to derive a quantum-mechanical ``equivalent-photon spectrum'' valid in the long-wavelength limit. This improved spectrum includes the effects of projectile size, the finite longitudinal momentum transfer required by kinematics, and the response of the target nucleus to the off-shell photon.
description: 19 pages, 5 figures
Measuring demand and network effects for a new technology to improve food safety among smallholder farmers in Sub-Saharan Africa
Creators: name: Arias-Granada, Yurani
name: Bauchet, Jonathan
name: Ricker-Gilbert, Jacob
name: Arias-Granada, Yurani
name: Bauchet, Jonathan
name: Ricker-Gilbert, Jacob
Publisher: name: Unknown
Year: 2021
Subjects: International Development
Food Consumption/Nutrition/Food Safety

description: Presentation 21188
An Analysis of Crop Insurance Losses, Cover Crops, and Weather in US Crop Production
Creators: name: Aglasan, Serkan
name: Rejesus, Roderick M.
name: Aglasan, Serkan
name: Rejesus, Roderick M.
Publisher: name: Unknown
Year: 2021
Subjects: Production Economics
Risk and Uncertainty
Agricultural and Food Policy

description: Presentation 20735
Evaluating the Effects of Footprint-based CAFE Standards in the U.S. New-Vehicle Market
Creators: name: Matsushima, Hiroshi
name: Khanna, Madhu
name: Matsushima, Hiroshi
name: Khanna, Madhu
Publisher: name: Unknown
Year: 2021
Subjects: Environmental Economics and Policy
Institutional and Behavioral Economics
Resource/Energy Economics and Policy

description: Presentation 21326
Effects of trap anisotropy on impurity scattering regime in a Fermi gas
Creators: name: Capuzzi, P.
name: Vignolo, P.
name: Tosi, M. P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We evaluate the low-lying oscillation modes and the ballistic expansion properties of a harmonically trapped gas of fermionic K40 atoms containing thermal Rb87 impurities as functions of the anisotropy of the trap. Numerical results are obtained by solving the Vlasov-Landau equations for the one-body phase-space distribution functions and are used to test simple scaling Ansatzes. Starting from the gas in a weak impurity-scattering regime inside a spherical trap, the time scales associated to motions in the axial and azimuthal directions enter into competition as the trap is deformed to an elongated cigar-like shape. This competition gives rise to coexistence of collisionless and hydrodynamic behaviors in the low-lying surface modes of the gas as well as to a dependence of the aspect ratio of the expanding cloud on the collision time.
description: 6 pages, 4 figures, accepted for publication in Phys. Rev. A
Strategic Rejections: Flexible Enforcement of Minimum Quality Standards, with Application to the Fresh Strawberry Market
Creators: name: Hill, Alexandra E.
name: Sexton, Richard J.
name: Hill, Alexandra E.
name: Sexton, Richard J.
Publisher: name: Unknown
Year: 2021
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: Agribusiness
subject: Agricultural and Food Policy

description: Presentation 21203
The Foundation Supernova Survey: Motivation, Design, Implementation, and First Data Release
Creators: name: Foley, Ryan J.
name: Scolnic, Daniel
name: Rest, Armin
name: Jha, S. W.
name: Pan, Y. -C.
name: Riess, A. G.
name: Challis, P.
name: Chambers, K. C.
name: Coulter, D. A.
name: Dettman, K. G.
name: Foley, M. M.
name: Fox, O. D.
name: Huber, M. E.
name: Jones, D. O.
name: Kilpatrick, C. D.
name: Kirshner, R. P.
name: Schultz, A. S. B.
name: Siebert, M. R.
name: Flewelling, H. A.
name: Gibson, B.
name: Magnier, E. A.
name: Miller, J. A.
name: Primak, N.
name: Smartt, S. J.
name: Smith, K. W.
name: Wainscoat, R. J.
name: Waters, C.
name: Willman, M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The Foundation Supernova Survey aims to provide a large, high-fidelity, homogeneous, and precisely-calibrated low-redshift Type Ia supernova (SN Ia) sample for cosmology. The calibration of the current low-redshift SN sample is the largest component of systematic uncertainties for SN cosmology, and new data are necessary to make progress. We present the motivation, survey design, observation strategy, implementation, and first results for the Foundation Supernova Survey. We are using the Pan-STARRS telescope to obtain photometry for up to 800 SNe Ia at z < 0.1. This strategy has several unique advantages: (1) the Pan-STARRS system is a superbly calibrated telescopic system, (2) Pan-STARRS has observed 3/4 of the sky in grizy making future template observations unnecessary, (3) we have a well-tested data-reduction pipeline, and (4) we have observed ~3000 high-redshift SNe Ia on this system. Here we present our initial sample of 225 SN Ia griz light curves, of which 180 pass all criteria for inclusion in a cosmological sample. The Foundation Supernova Survey already contains more cosmologically useful SNe Ia than all other published low-redshift SN Ia samples combined. We expect that the systematic uncertainties for the Foundation Supernova Sample will be 2-3 times smaller than other low-redshift samples. We find that our cosmologically useful sample has an intrinsic scatter of 0.111 mag, smaller than other low-redshift samples. We perform detailed simulations showing that simply replacing the current low-redshift SN Ia sample with an equally sized Foundation sample will improve the precision on the dark energy equation-of-state parameter by 35%, and the dark energy figure-of-merit by 72%.
description: MNRAS, accepted; 157 pages, but 139 pages are tables; 9 figures
ОТДЕЛЬНЫЕ АСПЕКТЫ РАЗВИТИЯ МАЛОГО И СРЕДНЕГО ПРЕДПРИНИМАТЕЛЬСТВА В РОССИИ (ДАГЕСТАНЕ)
Creators: name: АБУСАЛАМОВА Н.А.
name: МУСАЕВА С.Х.
Publisher: name: УЭПС: управление, экономика, политика, социология
Year: 2017
Subjects: ПРЕДПРИНИМАТЕЛЬСТВО
ENTREPRENEURSHIP
ДИНАМИКА РАЗВИТИЯ
DYNAMICS OF DEVELOPMENT
ОТРАСЛЕВАЯ СТРУКТУРА
INDUSTRY STRUCTURE
ИНДИВИДУАЛЬНЫЙ ПРЕДПРИНИМАТЕЛЬ
INDIVIDUAL ENTREPRENEUR
МАЛЫЕ И СРЕДНИЕ ПРЕДПРИЯТИЯ
SMALL AND MEDIUM SCALE ENTERPRISES
ВАЛОВОЙ ВНУТРЕННИЙ ПРОДУКТ
GROSS INTERNAL PRODUCT

description: В статье рассмотрена роль малого и среднего предпринимательства как фактора динамичного развития экономики, приведены данные о состоянии и развитии малого и среднего предпринимательства в России и в Дагестане, рассмотрены основные проблемы, требующие решения.
Efficient polarisation-preserving frequency conversion from a trapped-ion-compatible wavelength to the telecom C band
Creators: name: Krutyanskiy, V.
name: Meraner, M.
name: Schupp, J.
name: Lanyon, B. P.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate polarisation-preserving frequency conversion of single-photon-level light at 854 nm, resonant with a trapped-ion transition and qubit, to the 1550-nm telecom C band. A total photon in / fiber-coupled photon out efficiency of $\sim$ 30 % is achieved, for a free-running photon noise rate of $\sim$ 60 Hz. This performance would enable telecom conversion of 854-nm polarisation qubits, produced in existing trapped-ion systems, with a signal-to-noise ratio greater than 1. In combination with near-future trapped-ion systems, our converter would enable the observation of entanglement between an ion and a photon that has travelled more than 100 km in optical fiber: three orders of magnitude further than the state-of-the-art.
description: 20 pages, 5 figures
Online Inference for the Infinite Topic-Cluster Model: Storylines from Streaming Text
Creators: name: Ahmed, Amr
name: Qirong  Ho
name: Teo, Choon Hui
name: Eisenstein, Jacob
name: Smola, Alex
name: Xing, Eric P.
Publisher: name: Carnegie Mellon University
Year: 2011
Subjects: subject: 170203 Knowledge Representation and Machine Learning
subject: FOS: Psychology

description: We present the time-dependent topic-cluster model, a hierarchical approach for combining Latent Dirichlet Allocation and clustering via the Recurrent Chinese Restaurant Process. It inherits the advantages of both of its constituents, namely interpretability and concise representation. We show how it can be applied to streaming collections of objects such as real world feeds in a news portal. We provide details of a parallel Sequential Monte Carlo algorithm to perform inference in the resulting graphical model which scales to hundred of thousands of documents.
Magnetic Field Decay in Neutron Stars. Analysis of General Relativistic Effects
Creators: name: Geppert, U.
name: Page, D.
name: Zannias, T.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: An analysis of the role of general relativistic effects on the decay of neutron star's magnetic field is presented. At first, a generalized induction equation on an arbitrary static background geometry has been derived and, secondly, by a combination of analytical and numerical techniques, a comparison of the time scales for the decay of an initial dipole magnetic field in flat and curved spacetime is discussed. For the case of very simple neutron star models, rotation not accounted for and in the absence of cooling effects, we find that the inclusion of general relativistic effects result, on the average, in an enlargement of the decay time of the field in comparison to the flat spacetime case. Via numerical techniques we show that, the enlargement factor depends upon the dimensionless compactness ratio $ε={2GM \over c^{2}R}$, and for $ε$ in the range $(0.3~,~0.5)$, corresponding to compactness ratio of realistic neutron star models, this factor is between 1.2 to 1.3. The present analysis shows that general relativistic effects on the magnetic field decay ought to be examined more carefully than hitherto. A brief discussion of our findings on the impact of neutron stars physics is also presented.
description: 35 pages, 4 figures, In press Phys. Rev. D15
On higher spins and the tensionless limit of String Theory
Creators: name: Sagnotti, A.
name: Tsulaia, M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss string spectra in the low-tension limit using the BRST formalism, with emphasis on the role of triplets of totally symmetric tensors and spinor-tensors and their generalizations to cases with mixed symmetry and to (A)dS backgrounds. We also present simple compensator forms of the field equations for individual higher-spin gauge fields that display the {unconstrained} gauge symmetry of a previous non-local construction and reduce upon partial gauge fixing to the (Fang-)Fronsdal equations. For Bose fields we also show how a local Lagrangian formulation with {unconstrained} gauge symmetry is determined by a previous BRST construction.
description: 44 pages, LATEX. Improper interpretation of gauge-fixing procedure for (A)dS triplet removed, misprints corrected, references added
Oscillations of the static meson fields at finite baryon density
Creators: name: Florkowski, W.
name: Friman, B.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The spatial dependence of static meson correlation functions at finite baryon density is studied in the Nambu -- Jona - Lasinio model. In contrast to the finite temperature case, we find that the correlation functions at finite density are not screened but exhibit long-range oscillations. The observed phenomenon is analogous to the Friedel oscillations in a degenerate electron gas.
Role of Institutions in the reducing the transaction costs in vegetable market? Evidence from India
Creators: name: Kedar, Vishnu Shankarrao
name: Neharkar, Pratibha
name: Kedar, Vishnu Shankarrao
name: Neharkar, Pratibha
Publisher: name: Unknown
Year: 2021
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: Agribusiness
subject: Institutional and Behavioral Economics

description: Presentation 20759
РАЗВИТИЕ КОНКУРЕНТНОЙ СРЕДЫ В РЕСПУБЛИКЕ ДАГЕСТАН
Creators: name: ТАГРИВЕРДИЕВ А.А.
name: МУСАЕВА С.Х.
Publisher: name: УЭПС: управление, экономика, политика, социология
Year: 2017
Subjects: КОНКУРЕНЦИЯ
COMPETITION
КОНКУРЕНТНАЯ СРЕДА
COMPETITIVE ENVIRONMENT
КОНКУРЕНТНАЯ ПОЛИТИКА
COMPETITION POLICY
ЭКОНОМИКА
ECONOMICS
АНТИМОНОПОЛЬНОЕ РЕГУЛИРОВАНИЕ
ANTITRUST REGULATION
ДОРОЖНАЯ КАРТА
ROAD MAP
ФОРМЫ СОБСТВЕННОСТИ
FORM OF OWNERSHIP

description: В статье рассмотрена роль конкуренции как фактора динамичного развития экономики, приведены данные о состоянии и развитии конкурентной среды в Республике Дагестан, рассмотрены основные направления и показатели развития конкуренции в республике.
Drivers of smallholder oil palm expansion on peat swamp forest in Indonesia
Creators: name: Zhao, Jing
name: Cochrane, Mark
name: Lee, Janice
name: Elmore, Andrew
name: Numata, Izaya
name: Zhang, Xin
name: Zhao, Jing
name: Cochrane, Mark
name: Lee, Janice
name: Elmore, Andrew
name: Numata, Izaya
name: Zhang, Xin
Publisher: name: Unknown
Year: 2021
Subjects: Environmental Economics and Policy
Resource/Energy Economics and Policy
Production Economics

description: Presentation 21073
Online Detection of Unusual Events in Videos via Dynamic Sparse Coding
Creators: name: Zhou, Bin
name: Fei-Fei, Li
name: Xing, Eric P.
Publisher: name: Carnegie Mellon University
Year: 2011
Subjects: subject: 170203 Knowledge Representation and Machine Learning
subject: FOS: Psychology

description: Real-time unusual event detection in video stream has been a difficult challenge due to the lack of sufficient training information, volatility of the definitions for both normality and abnormality, time constraints, and statistical limitation of the fitness of any parametric models. We propose a fully unsupervised dynamic sparse coding approach for detecting unusual events in videos based on online sparse re-constructibility of query signals from an atomically learned event dictionary, which forms a sparse coding bases. Based on an intuition that usual events in a video are more likely to be reconstructible from an event dictionary, whereas unusual events are not, our algorithm employs a principled convex optimization formulation that allows both a sparse reconstruction code, and an online dictionary to be jointly inferred and updated. Our algorithm is completely un-supervised, making no prior assumptions of what unusual events may look like and the settings of the cameras. The fact that the bases dictionary is updated in an online fashion as the algorithm observes more data, avoids any issues with concept drift. Experimental results on hours of real world surveillance video and several Youtube videos show that the proposed algorithm could reliably locate the unusual events in the video sequence, outperforming the current state-of-the-art methods.
A nonlinear theory for fibre-reinforced magneto-elastic rods
Creators: name: Ciambella, Jacopo
name: Favata, Antonino
name: Tomassetti, Giuseppe
Publisher: name: arXiv
Year: 2017
Subjects: subject: Applied Physics (physics.app-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We derive a model for the finite motion of a magneto-elastic rod reinforced with isotropic (spherical) or anisotropic (ellipsoidal) inclusions. The particles are assumed weakly and uniformly magnetised, rigid and firmly embedded into the elastomeric matrix. We deduce closed form expressions of the quasi-static motion of the rod in terms of the external magnetic field and of the body forces. The dependences of the motion on the shape of the inclusions, their orientation, their anisotropic magnetic properties and the Young modulus of the matrix are analysed and discussed. Two case studies are presented in which the rod is used as an actuator suspended in a cantilever configuration. This work can foster new applications in the field of soft-actuators.
title: بطاقة وثائقية مبوّبة تتضمّن مذكّرات عن "الدمقراطية" وتنوّه بماكسيم رودنسون وبموريس ماشينو وبتيودور أدورنو - ظهر
title: Pre-classified documentation sheet including notes about "Democracy" and references to Maxime Rodinson, Maurice Maschino and Theodor W. Adorno (verso)
title: Fiche de documentation préclassifiée portant des notes sur la "Démocratie", avec références à Maxime Rodinson, Maurice Maschino et Theodor W. Adorno (verso)
Creators: name: Seurat, Michel
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2019

description: created: circa 1984
Memory of the Unjamming Transition during Cyclic Tiltings of a Granular Pile
Creators: name: Deboeuf, Stephanie
name: Dauchot, Olivier
name: Staron, Lydie
name: Mangeney, Anne
name: Vilotte, Jean-Pierre
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Discrete numerical simulations are performed to study the evolution of the micro-structure and the response of a granular packing during successive loading-unloading cycles, consisting of quasi-static rotations in the gravity field between opposite inclination angles. We show that internal variables, e.g., stress and fabric of the pile, exhibit hysteresis during these cycles due to the exploration of different metastable configurations. Interestingly, the hysteretic behaviour of the pile strongly depends on the maximal inclination of the cycles, giving evidence of the irreversible modifications of the pile state occurring close to the unjamming transition. More specifically, we show that for cycles with maximal inclination larger than the repose angle, the weak contact network carries the memory of the unjamming transition. These results demonstrate the relevance of a two-phases description -strong and weak contact networks- for a granular system, as soon as it has approached the unjamming transition.
description: 13 pages, 15 figures, soumis \`{a} Phys. Rev. E
On Triangular versus Edge Representations — Towards Scalable Modeling of Networks
Creators: name: Qirong  Ho
name: Junming  Yin
name: Xing, Eric P
Publisher: name: Carnegie Mellon University
Year: 2012
Subjects: subject: 170203 Knowledge Representation and Machine Learning
subject: FOS: Psychology

description: In this paper, we argue for representing networks as a bag of triangular motifs, particularly for important network problems that current model-based approaches handle poorly due to computational bottlenecks incurred by using edge representations. Such approaches require both 1-edges and 0-edges (missing edges) to be provided as input, and as a consequence, approximate inference algorithms for these models usually require Ω(N2 ) time per iteration, precluding their application to larger real-world networks. In contrast, triangular modeling requires less computation, while providing equivalent or better inference quality. A triangular motif is a vertex triple containing 2 or 3 edges, and the number of such motifs is Θ(Σi D2/i ) (where Di is the degree of vertex i), which is much smaller than N2 for low-maximum-degree networks. Using this representation, we develop a novel mixed-membership network model and approximate inference algorithm suitable for large networks with low max-degree. For networks with high maximum degree, the triangular motifs can be naturally subsampled in a node-centric fashion, allowing for much faster inference at a small cost in accuracy. Empirically, we demonstrate that our approach, when compared to that of an edge-based model, has faster runtime and improved accuracy for mixed-membership community detection. We conclude with a large-scale demonstration on an N ≈ 280, 000-node network, which is infeasible for network models with Ω(N2 ) inference cost.
ОРГАНИЗАЦИЯ РАЦИОНАЛЬНОГО ИСПОЛЬЗОВАНИЯ ЗЕМЕЛЬНЫХ РЕСУРСОВ (НА ПРИМЕРЕ МО "ХАСАВЮРТОВСКИЙ РАЙОН")
Creators: name: ИБРАГИМОВ А.Д.
Publisher: name: УЭПС: управление, экономика, политика, социология
Year: 2017
Subjects: ИНВЕНТАРИЗАЦИЯ ЗЕМЕЛЬ
INVENTORY OF LANDS
СЕВООБОРОТ
CROP ROTATION
СЕМЕНОВОДСТВО
SEED FARMING
СЕЛЬХОЗТЕХНИКА
AGRICULTURAL MACHINERY
УДОБРЕНИЯ
FERTILIZERS
МЕЛИОРАЦИЯ
MELIORATION

description: Среди материальных ценностей, которыми располагает человеческое общество, особое место занимает земля. В сельском хозяйстве земля является основным средством производства. От рационального использования земельных ресурсов зависит экономика района и сельхозпредприятий. Вопрос использования земельных ресурсов в республике стоит очень остро. Хотя Республика Дагестан считается малоземельной республикой, ежегодно неиспользованной остаются более 80 тыс. гектаров пашни, в том числе в Хасавюртовском районе 5269га. пашни. В данной статье рассматривается пути вовлечения в сельхозоборот неиспользованной пашни в Хасавюртовском районе. Для решения проблем рационального использования земельных ресурсов в районе предлагается решить ряд задач.
Economic and Environmental Value of Screening for Herbicide Resistance in Barnyardgrass in Arkansas
Creators: name: Peterson-Wilhelm, Bailey
name: Durand-Morat, Alvaro
name: Nalley, Lawton L.
name: Norsworthy, Jason
name: Bagavathiannan, Muthukumar V.
name: Peterson-Wilhelm, Bailey
name: Durand-Morat, Alvaro
name: Nalley, Lawton L.
name: Norsworthy, Jason
name: Bagavathiannan, Muthukumar V.
Publisher: name: Unknown
Year: 2021
Subjects: Production Economics
Environmental Economics and Policy
Productivity Analysis

description: Presentation 20288
Higher order loop equations for A_r and D_r quiver matrix models
Creators: name: Chiantese, Stefano
name: Klemm, Albrecht
name: Runkel, Ingo
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We use free boson techniques to investigate A-D-E-quiver matrix models. Certain higher spin fields in the free boson formulation give rise to higher order loop equations valid at finite N. These fields form a special kind of W-algebra, called Casimir algebra. We compute explicitly the loop equations for A_r and D_r quiver models and check that at large N they are related to a deformation of the corresponding singular Calabi-Yau geometry.
description: 31 pages, 3 figures; v2: added introduction to section 2, version published in JHEP
Bayesian Estimation of a Hybrid Generalized Multinomial Logit Model
Creators: name: Cheng, Haotian
name: Lambert, Dayton M.
name: Cheng, Haotian
name: Lambert, Dayton M.
Publisher: name: Unknown
Year: 2021
Subjects: subject: Research Methods/Statistical Methods
subject: Marketing
subject: FOS: Economics and business
subject: Agribusiness

description: Presentation 21007
Modified Quark-Meson Coupling Model for Nuclear Matter
Creators: name: Jin, Xuemin
name: Jennings, B. K.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The quark-meson coupling model for nuclear matter, which describes nuclear matter as non-overlapping MIT bags bound by the self-consistent exchange of scalar and vector mesons, is modified by introducing medium modification of the bag constant. We model the density dependence of the bag constant in two different ways: one invokes a direct coupling of the bag constant to the scalar meson field, and the other relates the bag constant to the in-medium nucleon mass. Both models feature a decreasing bag constant with increasing density. We find that when the bag constant is significantly reduced in nuclear medium with respect to its free-space value, large canceling isoscalar Lorentz scalar and vector potentials for the nucleon in nuclear matter emerge naturally. Such potentials are comparable to those suggested by relativistic nuclear phenomenology and finite-density QCD sum rules. This suggests that the reduction of bag constant in nuclear medium may play an important role in low- and medium-energy nuclear physics.
description: Part of the text is reordered, revised version to appear in Phys. Rev. C. 19 pages, ReVTeX, 4 figures embedded
Assessment of COVID-19 Impacts Using the Immediate Impact Model of Local Agricultural Production (IMLAP)
Creators: name: Haqiqi, Iman
name: Bahalou Horeh, Marziyeh
name: Haqiqi, Iman
name: Bahalou Horeh, Marziyeh
Publisher: name: Unknown
Year: 2021
Subjects: Production Economics
Health Economics and Policy
Environmental Economics and Policy

description: Presentation 21333
ПРОБЛЕМЫ И ПЕРСПЕКТИВЫ МОДЕРНИЗАЦИИ АГРОСЕКТОРА ДАГЕСТАНА
Creators: name: ШАРИПОВ Ш.И.
Publisher: name: УЭПС: управление, экономика, политика, социология
Year: 2018
Subjects: СЕЛЬСКОЕ ХОЗЯЙСТВО
МОДЕРНИЗАЦИЯ
ПОТЕНЦИАЛ
СТРУКТУРА
ТЕХНИКА
АГРОТЕХНОЛОГИИ
РОСТ
AGRICULTURE
MODERNIZATION
POTENTIAL
STRUCTURE
TECHNICS
AGROTECHNOLOGIES
GROWTH

description: Анализируются тенденции развития агросектора региона, выявлены основные проблемы, сдерживающие модернизацию отрасли, предложены меры по стимулированию инвестиционной деятельности
On Time Varying Undirected Graphs
Creators: name: Kolar, Mladen
name: Xing, Eric P.
Publisher: name: Carnegie Mellon University
Year: 2011
Subjects: subject: 170203 Knowledge Representation and Machine Learning
subject: FOS: Psychology

description: The time-varying multivariate Gaussian distribution and the undirected graph associated with it, as introduced in Zhou et al. (2008), provide a useful statistical framework for modeling complex dynamic networks. In many application domains, it is of high importance to estimate the graph structure of the model consistently for the purpose of scientific discovery. In this short note, we show that under suitable technical conditions the structure of the undirected graphical model can be consistently estimated in the high dimensional setting, when the dimensionality of the model is allowed to diverge with the sample size. The model selection consistency is shown for the procedure proposed in Zhou et al. (2008) and for the modified neighborhood selection procedure of Meinshausen and Bühlmann (2006).
КЛАСТЕРНЫЙ ПОДХОД КАК ИНСТРУМЕНТ СТИМУЛИРОВАНИЯ ИННОВАЦИОННО-ИНВЕСТИЦИОННОЙ ДЕЯТЕЛЬНОСТИ В АПК РЕГИОНА
Creators: name: РЯБЧИКОВА Н.Н.
Publisher: name: УЭПС: управление, экономика, политика, социология
Year: 2018
Subjects: КЛАСТЕР
АГРОПРОМЫШЛЕННЫЙ КОМПЛЕКС
ПРОДУКТОВЫЙ ПОДКОМПЛЕКС
ИННОВАЦИИ
ИНВЕСТИЦИИ
РЕГИОН
CLUSTER
AGRO-INDUSTRIAL COMPLEX
FOOD SUBCOMPLEX
INNOVATIONS
INVESTMENTS
REGION

description: В статье представлены преимущества кластерного подхода как инструмента стимулирования инвестиционной деятельности в АПК, среди которых особенно важен доступ к инновациям и знаниям. Синергетический эффект, возникающий при объединении и эффективном взаимодействии участников агропромышленного кластера, способствует совершенствованию его инновационно-инвестиционной деятельности
The Impacts of Technological Progress on GHG Emissions, Water Resources, and Land Use
Creators: name: Haqiqi, Iman
name: Aqababaei, Monireh
name: Haqiqi, Iman
name: Aqababaei, Monireh
Publisher: name: Unknown
Year: 2021
Subjects: Productivity Analysis
Resource/Energy Economics and Policy
Environmental Economics and Policy

description: Presentation 21283
Photonic Realization of a Transition Between Topological Phases Residing in the Weak and Strong Floquet Driving Regimes
Creators: name: Guglielmon, Jonathan
name: Huang, Sheng
name: Chen, Kevin P.
name: Rechtsman, Mikael C.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A photonic Floquet topological insulator has previously been experimentally realized in an array of evanescently-coupled helical waveguides. In the topological regime probed by that experiment, the chirality of the single topological edge mode was the same as the chirality of the helices. Here we demonstrate the rich structure present in Floquet systems by fixing the helix chirality while moving into the strong driving regime to observe a topological transition in which the edge mode reverses its propagation direction, yielding the counterintuitive result that an increase of the driving amplitude can have the same effect as reversing the helix chirality. We experimentally observe this transition while overcoming the bending loss typically associated with the strong driving regime, despite the fact that the helix radius is on the same scale as the size of the entire array. The two topological phases observed in our experiment can be understood as originating from a Floquet realization of the Haldane model.
description: 5 pages, 4 figures
Gendered Division of Family and Hired Labor, Crop Productivity, and Household Decision-making
Creators: name: Gulati, Kajal
name: Lybbert, Travis J.
name: Gulati, Kajal
name: Lybbert, Travis J.
Publisher: name: Unknown
Year: 2021
Subjects: International Development
Labor and Human Capital
Productivity Analysis

description: Presentation 21292
Lettre de Francesco Ginanni à Jean-François Séguier, 1753-10-27
Creators: name: Ginanni, Francesco
name: Ginanni, Francesco
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2022
Subjects: Histoire naturelle

description: Sig. Gian Francesco mio sig.e P.ron Riv.mo

Se ad alcuno dovrà l’infausta nuova della morte del con.e Giuseppe mio zio apportar doglia e rammarico, io credo, che lo dovrà a Lei certamente, siccome a quella, che oltre l’innata bontà sua, la quale non puo non farle sentir cordoglio della perdita di un suo buon amico, e servitor, sa poi ancora, quanto da lui fosse avuto in riverenza il di Lei nome celebratissimo. Ella era in tanta stima, e in tanto affetto presso di lui, che più di una volta in private ragionamenti ne ho udito fare efficacissima testimonianza. Di questo colpo, cui il sig.e ha volute aggravare il mio cuore, convien dunque, che in adempimento di una parte del mio dovere io la faccia avvisata, acciocch’ella sappia, che se nel zio ha perduto un vero amico, a Lei rimane nel nipote un vero servitor, e che se ancora tra’ suoi amici mi vorrà dare il non ultimo luogo, io ne avrò gran mercè alla sua molta gentilezza.
Ha già avanzate le mie diligenze, acciochhe la stampa della sua Raccolta, ben a Lei nota, di piante marine dell’Adriatico unita ad alquante osservazioni particolari sopra testacei marittimi, paludosi, e terrestri, che si ritrovano nel mare e nel territorio di Ravenna, sia con esattezza proseguita, e terminata. Ne so la di Lei premura.
So ancora le suppliche, che il fu mio zio a Lei porse per mio conto, e ad oggettocche io potessi ottenere per di lei mezzo il libretto in 12 stampato in Leida delle scoperte fatte col microscopio dal sig.e Needham, e la dissertazione sopra le malattie del frumento, che ha riportato il premio dell’Accademia di Burdò [Bordeaux]. Le gentilissime sue risposte, ed esibizioni me le fanno sentire infinito obbligo. Starò dunque, quandocche sia, in attenzione delle sue grazie. Queste cose sono necessarie alla mia non mai sazia curiosità in occasione, [fol. 120v] che un Trattatello fisico-matematico sto formando, per cui sono parecchi anni, che faccio esperienze, osservazioni, e meditazioni.
Se talora per diporto vorrà ella gittare uno sguardo sopra il Tomo 45, et il 48 della raccolta d’opuscoli del P.re Calogerà per vedervi una lettera sopra il preteso incanto del rospo, e una dissertazione matematico-critica De numeralium notarum minusculorum origine, e per indicarmene schiettamente il parer suo, non riflettendo a’soliti errori di quella stampa, che vi sono trascorsi per entro, mi farà cosa molto grata, e tanto più liberamente potrà ella ciò fare, quantocche non se ne sa l’autore. Non basto ad esprimere que’ sentimenti di riverenza, e di stima, che io le professo. Sono, e sarò sempre a’ suoi comandi.
Di Lei sig. Gian Francesco P.ron Riv.mo
Ravenna ne’ 27 ottobre 1753
Dev.mo obbl.mo ser.re amico
Francesco Ginanni
description: Source: [établissement de conservation] Nîmes, Bibliothèque Carré d'Art [cote] ms. 143, fol. 120
A Single Atom Mirror for 1D Atomic Lattice Gases
Creators: name: Micheli, A.
name: Zoller, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose a scheme utilizing quantum interference to control the transport of atoms in a 1D optical lattice by a single impurity atom. The two internal state of the impurity represent a spin-1/2 (qubit), which in one spin state is perfectly transparent to the lattice gas, and in the other spin state acts as a single atom mirror, confining the lattice gas. This allows to ``amplify'' the state of the qubit, and provides a single-shot quantum non-demolition measurement of the state of the qubit. We derive exact analytical expression for the scattering of a single atom by the impurity, and give approximate expressions for the dynamics a gas of many interacting bosonic of fermionic atoms.
description: 20 pages, 15 figures
Galaxy overdensities around 3C radio galaxies and quasars at $1
Creators: name: Ghaffari, Z.
name: Westhues, Ch.
name: Haas, M.
name: Chini, R.
name: Willner, S. P.
name: Ashby, M. L. N.
name: Wilkes, B. J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Luminous radio sources are thought to lie in galaxy clusters or proto-clusters. The complete sample of 64 high-redshift 3C sources at $13σ$) within 30" ($\sim$250 kpc) projected distance from the radio source compared to the surrounding galaxy densities measured in the $50''-120''$ annulus. The Pan-STARRS/IRAC cut reveals higher average overdensities than the IRAC1/2 cut and also a decline of overdensities at $z>1.4$. To infer the nature of the cluster members, we rerun the analysis using a stronger IRAC1/2 cut $[3.6] - [4.5] < -0.1$ which removes $1
Illinois Farmers' Beliefs about the Maximum Return to Nitrogen (MRTN) Recommendation
Creators: name: Sellars, Sarah C.
name: Schnitkey, Gary D.
name: Gentry, Laura F.
name: Paulson, Nick
name: Sellars, Sarah C.
name: Schnitkey, Gary D.
name: Gentry, Laura F.
name: Paulson, Nick
Publisher: name: Unknown
Year: 2021
Subjects: Agricultural Finance
Agricultural and Food Policy
Agribusiness

description: Presentation 20840
Dynamics of line-driven disk winds in Active Galactic Nuclei
Creators: name: Proga, D.
name: Stone, J. M.
name: Kallman, T. R.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of time-dependent hydrodynamic calculations of line- driven winds from accretion disks in AGN. To calculate the radiation force, we take into account radiation from the disk and the central engine. The gas temperature and ionization state in the wind are calculated self-consistently. We find that a disk accreting onto a 10^8 MSUN black hole at the rate of 1.8 MSUN/YR can launch a wind at about 10^16 cm from the central engine. The X-rays from the central object are attenuated by the disk atmosphere so they cannot prevent the local disk radiation from pushing matter away from the disk. For a reasonable X-ray opacity, the disk wind can be accelerated by the central UV radiation to velocities of up to 15000 km/s at a distance of about 10^17 cm from the central engine. The covering factor of the disk wind is $\sim 0.2$. The wind is unsteady and consists of an opaque, slow vertical flow near the disk that is bounded on the polar side by a high-velocity stream. A typical column density through the fast stream is a few 10^23 cm^-2. The fast stream contributes nearly 100% to the total wind mass loss rate of 0.5 MSUN/YR.
description: LaTeX, 20 pages, contains color figures, to appear in ApJ
ASSESSMENT OF THE IMMUNE STATUS IN CERVICAL DISEASES ASSOCIATED WITH HUMAN PAPILLOMAVIRUS
Creators: name: Akhmatova, Gulrukh
Publisher: name: Zenodo
Year: 2024

description: In recent years, there has been a tendency in many countries of the world to increase the incidence of papillomavirus infection caused by the human papillomavirus (HPV). Despite the existing treatment methods, the problem of papillomavirus infection resistance to ongoing therapy is relevant. Squamous intraepithelial lesions of the cervix occupy a leading position in the structure of gynecological pathology among women of reproductive age [1,2].
On the Power of Adaptivity in Matrix Completion and Approximation
Creators: name: Akshay  Krishnamurthy
name: Singh, Aarti
Publisher: name: Carnegie Mellon University
Year: 2014
Subjects: subject: 170203 Knowledge Representation and Machine Learning
subject: FOS: Psychology

description: We consider the related tasks of matrix completion and matrix approximation from missing data and propose adaptive sampling procedures for both problems. We show that adaptive sampling allows one to eliminate standard incoherence assumptions on the matrix row space that are necessary for passive sampling procedures. For exact recovery of a low-rank matrix, our algorithm judiciously selects a few columns to observe in full and, with few additional measurements, projects the remaining columns onto their span. This algorithm exactly recovers an n × n rank r matrix using O(nrµ0 log2 (r)) observations, where µ0 is a coherence parameter on the column space of the matrix. In addition to completely eliminating any row space assumptions that have pervaded the literature, this algorithm enjoys a better sample complexity than any existing matrix completion algorithm. To certify that this improvement is due to adaptive sampling, we establish that row space coherence is necessary for passive sampling algorithms to achieve non-trivial sample complexity bounds. For constructing a low-rank approximation to a high-rank input matrix, we propose a simple algorithm that thresholds the singular values of a zero-filled version of the input matrix. The algorithm computes an approximation that is nearly as good as the best rank-r approximation using O(nrµ log2 (n)) samples, where µ is a slightly different coherence parameter on the matrix columns. Again we eliminate assumptions on the row space.
Work probability distribution for a ferromagnet with long-ranged and short-ranged correlations
Creators: name: Bhattacharjee, J. K.
name: Kirkpatrick, T. R.
name: Sengers, J. V.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Work fluctuations and work probability distributions are fundamentally different in systems with short- ranged versus long-ranged correlations. Specifically, in systems with long-ranged correlations the work distribution is extraordinarily broad compared to systems with shortranged correlations. This difference profoundly affects the possible applicability of fluctuation theorems like the Jarzynski fluctuation theorem. The Heisenberg ferromagnet , well below its Curie temperature, is a system with long-ranged correlations in very low magnetic fields due to the presence of Goldstone modes. As the magnetic field is increased the correlations gradually become short-ranged. Hence, such a ferromagnet is an ideal system for elucidating the changes of the work probability distribution as one goes from a domain with long-ranged correlations to a domain with short-ranged correlations by tuning the magnetic field. A quantitative analysis of this crossover behaviour of the work probability distribution and the associated fluctuations is presented.
Temperature changes are associated with nonlinear effects on wheat yield in Pakistan
Creators: name: Rub, Abdur
name: Tack, Jesse B.
name: Barkley, Andrew P.
name: Rub, Abdur
name: Tack, Jesse B.
name: Barkley, Andrew P.
Publisher: name: Unknown
Year: 2021
Subjects: International Development
Environmental Economics and Policy
Production Economics

description: Presentation 20568
Hamiltonian treatment of Collapsing Thin Shells in Lanczos-Lovelock's theories
Creators: name: Crisostomo, J.
name: del Campo, S.
name: Saavedra, J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The Hamiltonian treatment for the collapse of thin shells for a family of Lanczos-Lovelock theories is studied. This formalism allows us to carry out a concise analysis of these theories. It is found that the black holes solution can be created by collapsing a thin shell. Naked singularities cannot be formed by this mechanism. Among the different Lanczos-Lovelock's theories, the Chern-Simons' theory corresponds to an exceptional case, because naked singularities can emerge from the collapse of a thin shell. This kind of theory does not possess a gravitational self-interaction analogous to the Newtonian case.
description: 12pp., One figure and some arguments on the effective potential added. Final version to appear in Phys.Rev.D
ФОРМИРОВАНИЕ И РАЗВИТИЕ ТУРИСТСКО-РЕКРЕАЦИОННОГО КЛАСТЕРА В РД
Creators: name: АТАЕВА Т.А.
Publisher: name: УЭПС: управление, экономика, политика, социология
Year: 2018
Subjects: ТУРИСТСКИЙ КЛАСТЕР
ИНФРАСТРУКТУРА
ТУРИЗМ
ТУРИСТСКИЙ РЕСУРС
РЕКРЕАЦИИ
РЕСПУБЛИКА ДАГЕСТАН
TOURIST CLUSTER
INFRASTRUCTURE
TOURISM
TOURIST RESOURCE
RECREATION
REPUBLIC OF DAGESTAN

description: В статье рассмотрены особенности и перспективы формирования и развития туристско-рекреационного кластера в Республике Дагестан; проанализированы факторы, влияющие на его успешное функционирование; проанализирована федеральная программа по развитию туристско-рекреационного комплекса Республики Дагестан
Minigap in a SN junction with paramagnetic impurities
Creators: name: Crouzy, B.
name: Bascones, E.
name: Ivanov, D. A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study the effect of spin-flip scattering on the density of states in a long diffusive S-N junction with transparent interface. We calculate the critical value of the spin-flip scattering rate at which the minigap closes and give the dependence of the minigap on the spin-flip rate. For the system we consider, the minigap and the critical spin-flip rate have the scale of the Thouless energy, and not of the superconducting gap.
description: 4 pages, 2 figures
Connecting the Cosmic Star Formation Rate with the Local Star Formation
Creators: name: Gribel, Carolina
name: Miranda, Oswaldo D.
name: Vilas-Boas, Jose Williams
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a model that unifies the cosmic star formation rate (CSFR), obtained through the hierarchical structure formation scenario, with the (Galactic) local star formation rate (SFR). It is possible to use the SFR to generate a CSFR mapping through the density probability distribution functions (PDFs) commonly used to study the role of turbulence in the star-forming regions of the Galaxy. We obtain a consistent mapping from redshift $z\sim 20$ up to the present ($z = 0$). Our results show that the turbulence exhibits a dual character, providing high values for the star formation efficiency ($\langle\varepsilon\rangle \sim 0.32$) in the redshift interval $z\sim 3.5-20$ and reducing its value to $\langle\varepsilon\rangle = 0.021$ at $z = 0$. The value of the Mach number ($\mathcal{M}_{\rm crit}$), from which $\langle\varepsilon\rangle$ rapidly decreases, is dependent on both the polytropic index ($Γ$) and the minimum density contrast of the gas. We also derive Larson's first law associated with the velocity dispersion ($\langle V_{\rm rms}\rangle$) in the local star formation regions. Our model shows good agreement with Larson's law in the $\sim 10-50\,{\rm pc}$ range, providing typical temperatures $T_{0} \sim 10-80\,{\rm K}$ for the gas associated with star formation. As a consequence, dark matter halos of great mass could contain a number of halos of much smaller mass, and be able to form structures similar to globular clusters. Thus, Larson's law emerges as a result of the very formation of large-scale structures, which in turn would allow the formation of galactic systems, including our Galaxy.
description: ApJ accepted
The COVID-19 Pandemic and Fall 2020 Undergraduate Enrollment: An Assessment of Campus Policies, Health Risks, and Pandemic Challenges
Creators: name: Bergtold, Jason S.
name: Boys, Kathryn A.
name: Penn, Jerrod
name: Ehmke, Mariah D.
name: Katare, Bhagyashree
name: Kiesel, Kristin
name: Bergtold, Jason S.
name: Boys, Kathryn A.
name: Penn, Jerrod
name: Ehmke, Mariah D.
name: Katare, Bhagyashree
name: Kiesel, Kristin
Publisher: name: Unknown
Year: 2021
Subjects: Teaching/Communication/Extension/Profession
Agricultural and Food Policy
Health Economics and Policy

description: Presentation 21118