cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The origin of cosmic rays at all energies
Creators: name: Dar, Arnon
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: There is mounting evidence from observations of long duration gamma ray bursts (GRBs), supernova remnants (SNR) and the supernova (SN) explosion 1987A, that SN explosions eject highly relativistic bipolar jets of plasmoids (cannonballs) of ordinary matter. Here we use the remarkably successful cannonball (CB) model of GRBs to show that bipolar jets from Galactic SN explosions can produce the bulk of the Galactic cosmic rays at energies below the ankle, while the CRs which escape into the intergalactic space or are deposited there directly by jets from SNe in external galaxies can produce the observed cosmic ray flux with energies above the ankle. The model predict well all the observed properties of cosmic rays: their intensity, their spectrum including their elemental knees and ankle, their composition and the distribution of their arrival directions. At energies above the CR ankle, the Galactic magnetic fields can no longer delay the free escape of such ultra high energy CRs (UHECRs) from the Galaxy. The UHECRs, which are injected into the intergalactic medium (IGM) by the SN jets from our Galaxy and all the other galaxies and are isotropized there by the IGM magnetic fields, dominate the flux of UHECRs. Almost all the extragalactic UHECRs heavier than helium photo-disintegrate in collisions with the far infrared (FIR), microwave and radio background radiations. The CR protons and He nuclei however suffer a Greisen-Zatsepin-Kuzmin (GZK) cutoff due to pion photo-production in collisions with the FIR, microwave and radio background photons.
description: Invited talk at the 11th neutrino telescope intl. workshop, February 22-25, 2005, Venice, Italy
Extreme N-emitters at high-redshift: signatures of supermassive stars and globular cluster or black hole formation in action?
Creators: name: Marques-Chaves, R.
name: Schaerer, D.
name: Kuruvanthodi, A.
name: Korber, D.
name: Prantzos, N.
name: Charbonnel, C.
name: Weibel, A.
name: Izotov, Y. I.
name: Messa, M.
name: Brammer, G.
name: Dessauges-Zavadsky, M.
name: Oesch, P.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: [Abridged] Using the JWST/NIRSpec observations from CEERS we found an extreme N-emitter, CEERS-1019 at z=8.6782 showing intense NIV and NIII emission. From the observed rest-UV and optical lines we conclude that it is compatible with photoionization from stars and we determine accurate abundances for C, N, O, and Ne, relative to H, finding a highly supersolar ratio log(N/O) = -0.18+/-0.11, and normal log(C/O) = -0.75+/-0.11 and log(Ne/O) = -0.63+/-0.07, for its low metallicity, 12+log(O/H)= 7.70+/-0.18. We also analyze other N-emitters from the literature. All show strongly enhanced N/O ratios and two of them normal C/O. Massive star ejecta from WR stars are needed to explain the galaxies with enhanced C/O (Lynx arc and Mrk 996). On the other hand, supermassive stars (>1000 Msun, SMS) in the ``conveyer-belt model'' put forward to explain globular clusters (GCs), predict a high N/O and small changes in C/O, compatible with CEERS-1019, the Sunburst cluster, SMACS2031, and GN-z11. Based on the chemical abundances, possible enrichment scenarios, compactness, and high ISM density, we suggest that CEERS-1019, SMACS2031, and the Sunburst cluster could contain proto-GCs. Finally, we propose that some N-emitters enriched by SMS could also have formed intermediate-mass black holes, and we suggest that this might be the case for GN-z11. Our observations and analysis reinforce the suggested link between some N-emitters and proto-GC formation, which is supported both by empirical evidence and quantitative models. Furthermore, the observations provide possible evidence for the presence of supermassive stars in the early Universe (z>8) and at z~2-3. Our analysis also suggests that the origin and nature of the N-emitters is diverse, including also objects like GN-z11 which possibly host an AGN.
description: Accepted for publication in A&A, 19 pages, 9 figures, 4 tables
MULTIDIMENSIONAL OUTPUT INDICES
Creators: name: Craig, Barbara J.
name: Pardey, Philip G.
name: Craig, Barbara J.
name: Pardey, Philip G.
Publisher: name: Unknown
Year: 1990
Subjects: Research Methods/ Statistical Methods

description: This abstract describes alternative output aggregates that provide both cross-sectional and temporal comparisons appropriate for the analysis of panel data sets. Several of these multidimensional output indices are constructed using detailed data on agricultural production to illustrate the effects of fixing price weights over time, employing sample average price weights, and choosing between alternative approximations of Divisia indices.
Inside the Jaynes-Cummings sum
Creators: name: Pavlik, S. I.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is shown that the atomic inversion in the Jaynes-Cummings model has an exact representation as an integral over the Hankel contour. For a field in a coherent state, the integral is evaluated using the saddle point method. The trajectories of saddle points as a function of time are on the branches of the multi-valued Lambert function. All of them start at the initial moment of time, but make the maximum contribution to the inversion at different times. If the collapse and the first revival are clearly distinguished, then subsequent revivals are determined by the comparable contributions of several trajectories.
description: 17 pages, 5 figures
A kinetic approach to Bose-Einstein condensates: self-phase modulation and Bogoliubov oscillations
Creators: name: Mendonca, J. T.
name: Bingham, R.
name: Shukla, P. K.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: A kinetic approach to the Bose-Einstein condensates (BECs) is proposed, based on the Wigner-Moyal equation (WME). In the quasi-classical limit, the WME reduces to the particle number conservation equation. Two examples of application are: i) a self-phase modulation of a BE condensate beam where we show that part of the beam is decelerated and eventually stops as a result of the gradient of the effective self-potential; ii) the derivation of a kinetic dispersion relation for sound waves in the BECs, including a collisionless Landau damping.
description: 14 pages, no figures
USERS' GUIDE TO THE MINNESOTA TWO-REGION INPUT-OUTPUT MODEL
Creators: name: Hwang, Henry H.
name: Maki, Wilbur R.
name: Hwang, Henry H.
name: Maki, Wilbur R.
Publisher: name: Unknown
Year: 1979
Subjects: Community/Rural/Urban Development

description: The main objective of this study is to develop a computationally simple and efficient, but theoretically defensible, two-region input-output tables: a complete national input-output table, and regional estimates of gross outputs and final demands for a given base year.
Fundamental sensitivity limit of lossy cavity-enhanced interferometers with external and internal squeezing
Creators: name: Korobko, Mikhail
name: Südbeck, Jan
name: Steinlechner, Sebastian
name: Schnabel, Roman
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Quantum optical sensors are ubiquitous in various fields of research, from biological or medical sensors to large-scale experiments searching for dark matter or gravitational waves. Gravitational-wave detectors have been very successful in implementing cavities and quantum squeezed light for enhancing sensitivity to signals from black hole or neutron star mergers. However, the sensitivity to weak forces is limited by available energy and optical decoherence in the system. Here, we derive the fundamental sensitivity limit of cavity and squeezed-light enhanced interferometers with optical loss.This limit is attained by the optimal use of an additional internal squeeze operation, which allows to mitigate readout loss. We demonstrate the application of internal squeezing to various scenarios and confirm that it indeed allows to reach the best sensitivity in cavity and squeezed-light enhanced linear force sensors. Our work establishes the groundwork for the future development of optimal sensors in real-world scenarios where, up until now, the application of squeezed light was curtailed by various sources of decoherence.
EVALUATING CONSUMER PERCEPTIONS AND PREFERENCES FOR PASTURE-RAISED PORK IN THE MISSISSIPPI DELTA OF ARKANSAS
Creators: name: Armah, Paul W.
name: Kennedy, Donald
name: Armah, Paul W.
name: Kennedy, Donald
Publisher: name: Unknown
Year: 2000
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Livestock Production/Industries
subject: Arkansas
subject: consumer preferences
subject: market potential
subject: Mississippi Delta
subject: pasture-raised pork

description: This research provides baseline information about consumers' concerns, preferences, and market existence for pasture-raised pork in the Mississippi Delta area of Arkansas. Consumer preferences for pasture-raised pork are evaluated by examining the relationships between consumers' willingness to buy and their perception and acceptance of pasture-raised pork. The hypotheses were developed based on a market survey conducted during 1998. Using maximum-likelihood behavioral and demographic models, our results show consumer preferences drive the assured market that exists for pasture-raised pork in urban areas of the Delta among affluent, educated, health-conscious consumers who are prepared to pay a premium price for it.
Recurrence Coefficients for Orthogonal Polynomials with a Logarithmic Weight Function
Creators: name: Deift, Percy
name: Piorkowski, Mateusz
Publisher: name: arXiv
Year: 2023
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 42C05, 34M50, 45E05, 45M05

description: We prove an asymptotic formula for the recurrence coefficients of orthogonal polynomials with orthogonality measure $\log \bigl(\frac{2}{1-x}\bigr) {\rm d}x$ on $(-1,1)$. The asymptotic formula confirms a special case of a conjecture by Magnus and extends earlier results by Conway and one of the authors. The proof relies on the Riemann-Hilbert method. The main difficulty in applying the method to the problem at hand is the lack of an appropriate local parametrix near the logarithmic singularity at $x = +1$.
Observation and theoretical description of the pure Fano-effect in the valence-band photo-emission of ferromagnets
Creators: name: Minar, J.
name: Ebert, H.
name: De Nadai, C.
name: Brookes, N. B.
name: Venturini, F.
name: Ghiringhelli, G.
name: Chioncel, L.
name: Katsnelson, M. I.
name: Lichtenstein, A. I.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The pure Fano-effect in angle-integrated valence-band photo-emission of ferromagnets has been observed for the first time. A contribution of the intrinsic spin polarization to the spin polarization of the photo-electrons has been avoided by an appropriate choice of the experimental parameters. The theoretical description of the resulting spectra reveals a complete analogy to the Fano-effect observed before for paramagnetic transition metals. While the theoretical photo-current and spin difference spectra are found in good quantitative agreement with experiment in the case of Fe and Co only a qualitative agreement could be achieved in the case of Ni by calculations on the basis of plain local spin density approximation (LSDA). Agreement with experimental data could be improved in this case in a very substantial way by a treatment of correlation effects on the basis of dynamical mean field theory (DMFT).
description: 11 pages, 3 figures accepted by PRL
Kasteleyn theorem, geometric signatures and KP-II divisors on planar bipartite networks in the disk
Creators: name: Abenda, Simonetta
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: Combinatorics (math.CO)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 05C90, 14H70, 14M15, 37K40

description: Maximal minors of Kasteleyn sign matrices on planar bipartite graphs in the disk count dimer configurations with prescribed boundary conditions, and the weighted version of such matrices provides a natural parametrization of the totally non--negative part of real Grassmannians (see Refs. [54,43,44,58,7]). In this paper we provide a geometric interpretation of such variant of Kasteleyn theorem: a signature is Kasteleyn if and only if it is geometric in the sense of Ref. [5]. We apply this geometric characterization to explicitly solve the associated system of relations and provide a new proof that the parametrization of positroid cells induced by Kasteleyn weighted matrices coincides with that of Postnikov boundary measurement map. Finally we use Kasteleyn system of relations to associate algebraic geometric data to KP multi-soliton solutions. Indeed the KP wave function solves such system of relations at the nodes of the spectral curve if the dual graph of the latter represents the soliton data. Therefore the construction of the divisor is automatically invariant, and finally it coincides with that in Refs. [4,6] for the present class of graphs.
description: 47 pages, many figures; V2 and V3: minor modifications
Lepidozia kashyapii D. Singh et D. K. Singh
Creators: name: Söderström, Lars
name: Hagborg, Anders
name: Konrat, Matt Von
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Jungermanniopsida
Jungermanniales
Lepidoziaceae
Lepidozia
Lepidozia kashyapii

description: Lepidozia kashyapii D.Singh et D.K.Singh,
Nova Hedwigia 94 (1–2): 222, 2012 (see Singh & Singh 2012).
TYPE: “ INDIA. Eastern Himalaya: Sikkim, East district, Kyangnoshla, ca. 3300m, 29.04.2004, D.K.Singh & D.Singh 35188B (CAL: Holotype et Isotype)”.
description: Published as part of Söderström, Lars, Hagborg, Anders & Konrat, Matt Von, 2014, Early Land Plants Today: Index of Liverworts & Hornworts 2011 - 2012, pp. 61-85 in Phytotaxa 170 (2) on page 70, DOI: 10.11646/phytotaxa.170.2.1, http://zenodo.org/record/4779611
title: Microfluidic and X-ray techniques for investigations of nanoparticle nucleation and growth
Creators: name: Herbst, Maria
Publisher: name: University of Bayreuth
Year: 2021
Subjects: subject: nanoparticles
subject: microfluidic
subject: X-ray scattering
subject: nucleation and growth
subject: agglomeration
subject: kinetic
subject: 540

description: The present work deals with techniques for the investigation of agglomeration processes. On the one hand, the nucleation and growth kinetics of nanoparticles were investigated; on the other hand, microfluidic chips were developed and manufactured in order to observe medical and biological processes in vitro under dynamic conditions. The focus of this doctoral thesis relates to the kinetic investigations of zinc oxide and palladium nanoparticles, which were carried out in situ during the respective synthesis. This was achieved through a combination of partly microfluidic systems with analytical methods, which include X-ray scattering and optical spectroscopy.
Addressing Adverse Childhood Experiences in Granville and Vance Counties Through the Use of School-Based Interventions
Creators: name: Rivera, Hans Carlo
name: Bass, Sheree
name: Algammudi, Amani
name: Pagano, Kristen
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2025

description:
The project implements a data based coordinated strategy which uses community partnership with policy advocacy and continuous quality improvement (CQI) to decrease ACEs effects while enhancing mental well being.The initiative focuses on early intervention combined with specific support services and an inclusive program design to construct resilience while decreasing disparities and enhancing long term health results.The approach focuses on creating lasting systems changes and sustainable infrastructure to tackle structural inequities which will produce better health outcomes for children and families in these rural counties.
Actor-agnostic Multi-label Action Recognition with Multi-modal Query
Creators: name: Mondal, Anindya
name: Nag, Sauradip
name: Prada, Joaquin M
name: Zhu, Xiatian
name: Dutta, Anjan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Existing action recognition methods are typically actor-specific due to the intrinsic topological and apparent differences among the actors. This requires actor-specific pose estimation (e.g., humans vs. animals), leading to cumbersome model design complexity and high maintenance costs. Moreover, they often focus on learning the visual modality alone and single-label classification whilst neglecting other available information sources (e.g., class name text) and the concurrent occurrence of multiple actions. To overcome these limitations, we propose a new approach called 'actor-agnostic multi-modal multi-label action recognition,' which offers a unified solution for various types of actors, including humans and animals. We further formulate a novel Multi-modal Semantic Query Network (MSQNet) model in a transformer-based object detection framework (e.g., DETR), characterized by leveraging visual and textual modalities to represent the action classes better. The elimination of actor-specific model designs is a key advantage, as it removes the need for actor pose estimation altogether. Extensive experiments on five publicly available benchmarks show that our MSQNet consistently outperforms the prior arts of actor-specific alternatives on human and animal single- and multi-label action recognition tasks by up to 50%. Code is made available at https://github.com/mondalanindya/MSQNet.
description: Published at the 2023 IEEE/CVF International Conference on Computer Vision Workshops (ICCVW), Paris, France
ReaxFF Simulations of Self-Assembled Monolayers On Silver Surfaces and Nanocrystals
Creators: name: Lahouari, Adam
name: Piquemal, Jean-Philip
name: Richardi, Johannes
Publisher: name: arXiv
Year: 2023
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The self-assembled monolayers of alkane thiolates on Ag (111) surfaces and nanoparticles are studied using molecular dynamics. Reactive force fields allow simulations of very large systems such as nanoparticles of 10 nm. Stable (sqrt(7) X sqrt(7))R19.1° assemblies are obtained as experimentally observed for these systems. Only nanoparticles smaller than 4 nm show a spontaneous restructuration of the metallic core. The preferred adsorption site is found to be in an on-top position, in good agreement with recent X-ray absorption near edge structure experiments. Moreover, similar distances between the sulfur headgroups are found on the facets and edges.
A GROSS MARGIN COMPARISON OF RETURNS TO NEMATICIDE TREATMENT IN CONTINUOUS AND ROTATION TRITICALE-SOYBEAN PRODUCTION
Creators: name: Stark, C. Robert
name: Dowler, C.C.
name: Johnson, A.W.
name: Baker, S.H.
name: Stark, C. Robert
name: Dowler, C.C.
name: Johnson, A.W.
name: Baker, S.H.
Publisher: name: Unknown
Year: 2000
Subjects: subject: Crop Production/Industries
subject: conservation tillage
subject: gross margin
subject: irrigation
subject: Meloidogyne incognita
subject: root-knot nematode
subject: rotation
subject: soybean
subject: triticale

description: A study of irrigated strip-till soybean production compared gross margins over nematicide expense for a continuous triticale-soybean system versus a two-year rotation system alternating triticale-soybean with triticale-cotton. Half of the replicated plots under each system received nematicide treatment. Gross margins were calculated using recorded yields and Georgia average market prices by marketing years. Mean gross margins for untreated plots were not significantly different between crop-sequence systems. Within each system, however, mean gross margins were significantly higher for plots not receiving nematicide treatment versus treated plots, even when treated plots produced greater yields.
Explaining LSND by a decaying sterile neutrino
Creators: name: Palomares-Ruiz, Sergio
name: Pascoli, Silvia
name: Schwetz, Thomas
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We propose an explanation of the LSND evidence for electron antineutrino appearance based on neutrino decay. We introduce a heavy neutrino, which is produced in pion and muon decays because of a small mixing with muon neutrinos, and then decays into a scalar particle and a light neutrino, predominantly of the electron type. We require values of $g m_4\sim$ few eV, $g$ being the neutrino--scalar coupling and $m_4$ the heavy neutrino mass, e.g. $m_4$ in the range from 1 keV to 1 MeV and $g \sim 10^{-6} - 10^{-3}$. Performing a fit to the LSND data as well as all relevant null-result experiments, we show that all data can be explained within this decay scenario. In the minimal version of the decay model, we predict a signal in the upcoming MiniBooNE experiment corresponding to a transition probability of the same order as seen in LSND. In addition, we show that extending our model to two nearly degenerate heavy neutrinos it is possible to introduce CP violation in the decay, which can lead to a suppression of the signal in MiniBooNE running in the neutrino mode. We briefly discuss signals in future neutrino oscillation experiments, we show that our scenario is compatible with bounds from laboratory experiments, and we comment on implications in astrophysics and cosmology.
description: 23 pages, 5 figures, minor improvements, matches published version
MARKETING CHANNELS USED BY WHOLESALE AND RETAIL NURSERY COMPANIES
Creators: name: Ekanem, Enefiok P.
name: Singh, Surendra P.
name: Tegegne, Fisseha
name: Muhammad, Safdar
name: Ekanem, Enefiok P.
name: Singh, Surendra P.
name: Tegegne, Fisseha
name: Muhammad, Safdar
Publisher: name: Unknown
Year: 2000
Subjects: subject: Industrial Organization
subject: advertising channels
subject: business operation size
subject: Chi-square tests of independence
subject: nursery retail business
subject: nursery wholesale business
subject: strategic marketing
subject: stratified random sample

description: Analysis of data collected from a questionnaire survey of randomly selected Tennessee nursery businesses revealed that wholesalers and retailers differed significantly in their stated reasons for attending and participating in industry trade shows. When controlled for business size (gross sales), wholesalers and retailers also differed significantly in their perception of the usefulness of catalogs, newspapers, trade journals, trade shows, and radio to advertise nursery products and services.
Convergence of energy minimizers of a MEMS model in the reinforced limit
Creators: name: Laurençot, Philippe
name: Nik, Katerina
name: Walker, Christoph
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: Energy minimizers to a MEMS model with an insulating layer are shown to converge in its reinforced limit to the minimizer of the limiting model as the thickness of the layer tends to zero. The proof relies on the identification of the $Γ$-limit of the energy in this limit.
Frustrated Self-Assembly of Non-Euclidean Crystals of Nanoparticles
Creators: name: Serafin, Francesco
name: Lu, Jun
name: Kotov, Nicholas
name: Sun, Kai
name: Mao, Xiaoming
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Self-organized complex structures in nature, e.g. viral capsids, hierarchical biopolymers, and bacterial flagella, offer efficiency, adaptability, robustness, and multi-functionality. Can we program the self-assembly of three-dimensional (3D) complex structures with simple building blocks, and reach similar or higher level of sophistication in engineered materials? Here we present an analytic theory of tetrahedral nanoparticles (NPs) self-assembling in 3D space, where unavoidable geometrical frustration combined with competing attractive and repulsive inter-particle interactions lead to controllable, high-yield, and enantiopure self-assembly of helicoidal ribbons. This theory, based on crystal structures in non-Euclidean space, predicts morphologies that exhibit qualitative agreement with experimental observations. We expect that this theory will offer a general framework for the self-assembly of simple polyhedral building blocks into complex morphologies with new material capabilities such as tunable optical activity, essential for multiple emerging technologies.
description: Revised and updated main text and supplementary material. 20 pages, 6 figures
PATRON DEMAND DEPOSIT ACCOUNT AND REGIONAL PATRONAGE FINANCING ACTIVITIES OF AGRIBUSINESS COOPERATIVES
Creators: name: Brueckner, Erica C.
name: Duft, Ken D.
name: McCluskey, Jill J.
name: Brueckner, Erica C.
name: Duft, Ken D.
name: McCluskey, Jill J.
Publisher: name: Unknown
Year: 2000
Subjects: subject: Agribusiness
subject: cooperative financing
subject: patron demand deposit accounts
subject: regional patronage

description: This study investigates agribusiness cooperatives' reliance on patron demand deposit accounts (PDDAs) and regional patronage as sources of capital. Approximately 13% of cooperatives surveyed carry PDDAs, typically fruit cooperatives, of which over one-half have no financial protection against large unexpected withdrawals. Cooperatives with PDDAs must be concerned with potential legal conflicts regarding the handling of these accounts, as evidenced by a U.S. Supreme Court case classifying PDDAs as securities. Supply cooperatives are most likely to show investment in other cooperatives as a high percentage of total assets, which could generate insolvency issues for locals.
Dispersive properties and giant Kerr non-linearities in Dipole Induced Transparency
Creators: name: Waks, Edo
name: Vuckovic, Jelena
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We calculate the dispersive properties of the reflected field from a cavity coupled to a single dipole. We show that when a field is resonant with the dipole it experiences a 90 degree phase shift relative to reflection from a bare cavity if the Purcell factor exceeds the bare cavity reflectivity. We then show that optically Stark shifting the dipole with a second field can be used to achieve giant Kerr non-linearites. It is shown that currently achievable cavity lifetimes and cavity quality factors can allow a single emitter in the cavity to impose a nonlinear $π$ phase shift at the single photon level.
MANAGING OVERNIGHT CORN PRICE RISKS: E*HEDGING VERSUS TOKYO
Creators: name: Leuthold, Raymond M.
name: Kim, MinKyoung
name: Leuthold, Raymond M.
name: Kim, MinKyoung
Publisher: name: Unknown
Year: 2000
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: corn
subject: e*hedging
subject: electronic markets
subject: futures markets
subject: hedging
subject: overnight price risks
subject: Project A
subject: Tokyo Grain Exchange

description: This study investigates whether U.S. corn merchants can effectively manage the overnight price risk of cash corn purchased after the Chicago Board of Trade closes at 1:15 p.m. on either the electronic Project A market or in the corn contract traded on the Tokyo Grain Exchange. While neither market provides a very effective alternative using traditional measures of analysis, e*hedging on Project A is more effective than hedging in Tokyo. Both could be very effective for those merchants in the market every day. However, trading of corn futures contracts on Project A remains thin and likely illiquid, limiting its usefulness.
Leptoscyphus autoicus Vanderp. et Gradst., J. Bryol.
Creators: name: Söderström, Lars
name: Hagborg, Anders
name: Konrat, Matt Von
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Jungermanniopsida
Jungermanniales
Lophocoleaceae
Leptoscyphus
Leptoscyphus autoicus

description: Leptoscyphus autoicus (J.J.Engel et Gradst.) Vanderp. et Gradst.,
J. Bryol. 34 (4): 252, 2012 (see Vanderpoorten et al. 2012). BASIONYM: Physotheca autoica J.J.Engel et Gradst., Taxon 52 (4): 764, 2003 (see Engel & Gradstein 2003).
description: Published as part of Söderström, Lars, Hagborg, Anders & Konrat, Matt Von, 2014, Early Land Plants Today: Index of Liverworts & Hornworts 2011 - 2012, pp. 61-85 in Phytotaxa 170 (2) on page 71, DOI: 10.11646/phytotaxa.170.2.1, http://zenodo.org/record/4779611
Interaction-Driven Filling-Induced Metal-Insulator Transitions in 2D Moiré Lattices
Creators: name: Pan, Haining
name: Sarma, Sankar Das
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Using a realistic band structure for twisted WSe$_2 $ materials, we develop a theory for the interaction-driven correlated insulators to conducting metals transitions through the tuning of the filling factor around commensurate fractional fillings of the moiré unit cell in the 2D honeycomb lattice, focusing on the dominant half-filled Mott insulating state, which exists for both long- and short-range interactions. We find metallic states slightly away from half-filling, as have recently been observed experimentally. We discuss the stabilities and the magnetic properties of the resulting insulating and metallic phases, and comment on their experimental signatures. We also discuss the nature of the correlated insulator states at the rational fractional fillings.
description: 5 pages, 4 figures
In search of maximum non-overlapping codes
Creators: name: Stanovnik, Lidija
name: Moškon, Miha
name: Mraz, Miha
Publisher: name: arXiv
Year: 2023
Subjects: subject: Information Theory (cs.IT)
subject: Discrete Mathematics (cs.DM)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 94B50, 90C10

description: Non-overlapping codes are block codes that have arisen in diverse contexts of computer science and biology. Applications typically require finding non-overlapping codes with large cardinalities, but the maximum size of non-overlapping codes has been determined only for cases where the codeword length divides the size of the alphabet, and for codes with codewords of length two or three. For all other alphabet sizes and codeword lengths no computationally feasible way to identify non-overlapping codes that attain the maximum size has been found to date. Herein we characterize maximal non-overlapping codes. We formulate the maximum non-overlapping code problem as an integer optimization problem and determine necessary conditions for optimality of a non-overlapping code. Moreover, we solve several instances of the optimization problem to show that the hitherto known constructions do not generate the optimal codes for many alphabet sizes and codeword lengths. We also evaluate the number of distinct maximum non-overlapping codes.
description: Revised version
PHIL FOSTER RANCHES: A CASE STUDY OF AN ORGANIC VEGETABLE FARM
Creators: name: Brown, William J.
name: Brown, William J.
Publisher: name: Unknown
Year: 2002
Subjects: subject: Crop Production/Industries
subject: case study
subject: farm financial management
subject: marketing
subject: organic

description: This paper presents a case study of an organic vegetable farm, designed for a senior undergraduate farm business management or agribusiness course, and is accompanied by a teaching note which includes suggested analysis. Phil Foster is the owner and manager of Phil Foster Ranches, a 252-acre organic vegetable, fruit, and nut farm in the Central Coast Valley of California. Until the last few years, most of the sales were to a number of produce brokers who sold the produce for Phil in the wholesale market on a commission basis. Believing he could get better prices by selling direct to retailers, two years ago Phil started a local delivery route to small grocery stores wishing to sell organic produce. The delivery route has enjoyed success, but now requires significant additional investment of both time and money if it is to be maintained and expanded. Phil Foster must now decide if expanding the local delivery route will be worth the investment cost and effort. Through situation analysis, this case study examines Phil's decision-making options.
Nonlocal Kondo effect and quantum critical phase in heavy fermion metals
Creators: name: Wang, Jiangfan
name: Yang, Yi-feng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Heavy fermion metals typically exhibit unconventional quantum critical point or quantum critical phase at zero temperature due to competition of Kondo effect and magnetism. Previous theories were often based on certain local type of assumptions and a fully consistent explanation of experiments has not been achieved. Here we develop an efficient algorithm for the Schwinger boson approach to explore the effect of spatial correlations on the Kondo lattice and introduce the concept of nonlocal Kondo effect in the quantum critical region with deconfined spinons. We predict a global phase diagram containing a non-Fermi liquid quantum critical phase with a hidden holon Fermi surface and a partially enlarged electron Fermi surface for strong quantum fluctuations while a single quantum critical point for weak quantum fluctuations. This explains the unusual metallic spin liquid recently reported in the frustrated Kondo lattice CePdAl and resolves the Fermi volume puzzle in YbRh$_2$Si$_2$. Our theory highlights the importance of nonlocal physics and provides a unified understanding of heavy fermion quantum criticality.
description: 11 pages, 6 figures
[Brev til DKNVS]
Creators: name: Paasche, Ole Frederik
name: Det Kongelige Norske Videnskabers Selskab (DKNVS)
Publisher: name: Unknown
Year: 1809

description: Oberstkrigskommisær Wibe, tollinspektør Leganger, Otto Beyer og Henrik Hornemann velges til den komité som skal vurdere inkomne søknader om premie
Panagrellus
Creators: name: Kumar, Nitesh
name: Chaubey, Ashok Kumar
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Nematoda
Chromadorea
Rhabditida
Panagrolaimidae
Panagrellus

description: Bionomics and global distribution of Panagrellus species
In natural ecosystems, bacterial-feeding nematodes play a vital role in many ecological processes, such as nutrient cycling and decomposition processes, thereby affecting primary production indirectly. Organic matter provides an energy source and enhances bacterial growth, as a result of which bacteria release inorganic nitrogen and other essential nutrients. Then, these nutrients can be utilized to increase bacterial biomass. These bacterial communities attract other microorganisms and act as food sources for them. However, several bacterial populations are responsible to cause bacterial disease among trees (e.g., slime flux or wetwood canker) and fruits (e.g., browning & rotting).Thus, the resulting bacterial exudate and fermented sap attract many insects like flies, bees, wasps, butterflies, beetles, ants, and their larval forms. Nematodes of the Panagrellus genus are bacterial feeder. Most of the Panagrellus species are discovered from bacterial rich environments such as from slime flux or wetwood canker and pulp of trees, rotting apples and pears, pitchers of pitcher plant, soil, compost pile, and fermenting organic matter etc., but these nematodes are also associated with insects as facultative parasites. They can enter the insect’s body and establish a colony there. Other than this, they also show the phoretic association with insects for transportation and get the opportunity to reach food sources at a greater distance than they would be able to reach on their own. In the present study, P. ceylonensis nematodes were obtained from a live wet season form of oriental common evening brown butterfly M. leda. The valid species of Panagrellus genus reported from various habitats all over the world are presented in Table 4, Figure 6.
description: Published as part of Kumar, Nitesh & Chaubey, Ashok Kumar, 2023, Redescription and molecular characterization of Panagrellus ceylonensis (Nematoda, Rhabditida, Panagrolaimidae) from India, pp. 491-513 in Zootaxa 5383 (4) on page 507, DOI: 10.11646/zootaxa.5383.4.4, http://zenodo.org/record/10369726
SARA LEE FOODS TAKES FLIGHT: AN ECONOMIC IMPACT ANALYSIS OF A TURKEY PLANT CLOSURE
Creators: name: Burrows, Spencer Antonio
name: Cheney, Laura Martin
name: Rahn, Allan P.
name: Burrows, Spencer Antonio
name: Cheney, Laura Martin
name: Rahn, Allan P.
Publisher: name: Unknown
Year: 2002
Subjects: subject: Community/Rural/Urban Development
subject: Livestock Production/Industries
subject: impact analysis
subject: plant closure
subject: turkey industry

description: In 1998, the Sara Lee Corporation implemented a corporate strategy of deverticalization. Bil Mar Foods, Inc., a subsidiary of Sara Lee responsible for the processing of packaged meat products, followed the strategy by shutting down its turkey slaughter facility in Zeeland, Michigan. As a consequence, turkey growers in Michigan were left with no viable outlet for live bird slaughter and the potential end of live bird production in the region. This study analyzes the economic impact associated with the cessation of live bird slaughter at the Bil Mar Foods plant. The economic consequences may be as high as an $81 million loss in total industry output, a $29 million loss in income, and a total employment loss of nearly 800 jobs. Faced with these economic consequences, turkey growers in the region joined forces to form a valued-added cooperative.
title: AI3SD Video: InChI: Measuring the Molecules
Creators: name: Goodman, Jonathan
Publisher: name: University of Southampton
Year: 2020
Subjects: subject: AI3SD Event, Artificial Intelligence, Chemical Identifier, Chemistry, Digitisation, InChl, Molecules Discovery, Reproducible Research, Research, Research Data Management

description: The IUPAC international chemical identifier, InChI, provides a way to name molecules. It is defined by an open algorithm that transforms molecular structures into unique strings of text. Each molecule should have exactly one InChI, and each InChI should correspond to exactly one molecule. This property makes it a useful tool in the management of chemical information, and it is widely used. The InChI Trust and IUPAC are continuing to work on developing the standard and on creating new tools which are built on the InChI. This talk will outline how the InChI is used now, and how this may develop in the future.
A FRAMEWORK FOR EFFECTIVE INDUSTRY STRATEGIC PLANNING
Creators: name: Lyford, Conrad P.
name: Ricks, Donald J.
name: Peterson, H. Christopher
name: Sterns, James A.
name: Lyford, Conrad P.
name: Ricks, Donald J.
name: Peterson, H. Christopher
name: Sterns, James A.
Publisher: name: Unknown
Year: 2002
Subjects: subject: Agribusiness
subject: framework
subject: industry
subject: strategic planning

description: As agricultural commodity industries strategically plan for their future, they need to consider the systemic and synergistic effects of such factors as changing government regulations, demand expansion or contraction, globalized markets, increased competitive pressures, and greater customer quality requirements. This article discusses a framework developed to help industries strategically plan within the context of these dynamic factors. This framework, based upon relevant theory and an accumulation of experiences with this type of strategic planning, provides one possible approach for addressing the strategic needs of an entire industry. In this way, a commodity industry as a whole can identify and address key industrywide strategic issues to maintain and enhance its competitiveness, profitability, or at the very least, its survival in increasingly global markets.
ESTIMATING THE VALUE OF SOURCE VERIFICATION OF FEEDER CATTLE
Creators: name: Lawrence, John D.
name: Yeboah, Godfred
name: Lawrence, John D.
name: Yeboah, Godfred
Publisher: name: Unknown
Year: 2002
Subjects: subject: Livestock Production/Industries
subject: auction
subject: cattle
subject: hedonic pricing model
subject: markets
subject: source-verified auction

description: Source-verified (SV) feeder cattle auctions were held in Bloomfield, Iowa, each October, November, and December from 1997-2000. This study compares price data from these SV auctions to traditional auctions at the same location to determine whether a premium exists for SV feeder cattle. Hedonic pricing models were estimated to evaluate the price effects of lot characteristics, market forces, and type of market (SV versus regular sale). The SV cattle were sorted and pooled into large lots. The larger lot size, consistent with early research, earned large price premiums. After accounting for lot size, the SV premium for lighter cattle (< 650/600-pound steers/heifers) was estimated at $1.30/cwt, and was significant. The SV premium over and above lot size was not significant for heavier feeder cattle.
On the differentiability of the minimal and maximal solution maps of elliptic quasi-variational inequalities
Creators: name: Alphonse, Amal
name: Hintermüller, Michael
name: Rautenberg, Carlos N.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: In this note, we prove that the minimal and maximal solution maps associated to elliptic quasi-variational inequalities of obstacle type are directionally differentiable with respect to the forcing term and for directions that are signed. Along the way, we show that the minimal and maximal solutions can be seen as monotone limits of solutions of certain variational inequalities and that the aforementioned directional derivatives can also be characterised as the monotone limits of sequences of directional derivatives associated to variational inequalities. We conclude the paper with some examples and an application to thermoforming.
description: 13 pages
Super-radiant and Sub-radiant Cavity Scattering by Atom Arrays
Creators: name: Yan, Zhenjie
name: Ho, Jacquelyn
name: Lu, Yue-Hui
name: Masson, Stuart J.
name: Asenjo-Garcia, Ana
name: Stamper-Kurn, Dan M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We realize collective enhancement and suppression of light scattered by an array of tweezer-trapped $^{87}$Rb atoms positioned within a strongly coupled Fabry-Pérot optical cavity. We illuminate the array with light directed transverse to the cavity axis, in the low saturation regime, and detect photons scattered into the cavity. For an array with integer-optical-wavelength spacing each atom scatters light into the cavity with nearly identical scattering amplitude, leading to an observed $N^2$ scaling of cavity photon number as the atom number increases stepwise from $N=1$ to $N=8$. By contrast, for an array with half-integer-wavelength spacing, destructive interference of scattering amplitudes yields a non-monotonic, sub-radiant cavity intensity versus $N$. By analyzing the polarization of light emitted from the cavity, we find that Rayleigh scattering can be collectively enhanced or suppressed with respect to Raman scattering. We observe also that atom-induced shifts and broadenings of the cavity resonance are precisely tuned by varying the atom number and positions. Altogether, tweezer arrays provide exquisite control of atomic cavity QED spanning from the single- to the many-body regime.
Positive Moments for Scattering Amplitudes
Creators: name: Bellazzini, Brando
name: Miró, Joan Elias
name: Rattazzi, Riccardo
name: Riembau, Marc
name: Riva, Francesco
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We find the complete set of conditions satisfied by the forward $2\to2$ scattering amplitude in unitarity and causal theories. These are based on an infinite set of energy dependent quantities -- the arcs -- which are dispersively expressed as moments of a positive measure defined at (arbitrarily) higher energies. We identify optimal finite subsets of constraints, suitable to bound Effective Field Theories (EFTs), at any finite order in the energy expansion. At tree-level arcs are in one-to-one correspondence with Wilson coefficients. We establish under which conditions this approximation applies, identifying seemingly viable EFTs where it never does. In all cases, we discuss the range of validity in both couplings and energy. We also extend our results to the case of small but finite~$t$. A consequence of our study is that EFTs in which the scattering amplitude in some regime grows in energy faster than $E^6$ cannot be UV-completed.
description: 15 pages, v2 matches published version
Acoustic surface plasmons in the noble metals Cu, Ag, and Au
Creators: name: Silkin, V. M.
name: Pitarke, J. M.
name: Chulkov, E. V.
name: Echenique, P. M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have performed self-consistent calculations of the dynamical response of the (111) surface of the noble metals Cu, Ag, and Au. Our results indicate that the partially occupied surface-state band in these materials yields the existence of acoustic surface plasmons with linear dispersion at small wave vectors. Here we demonstrate that the sound velocity of these low-energy collective excitations, which had already been predicted to exist in the case of Be(0001), is dictated not only by the Fermi velocity of the two-dimensional surface-state band but also by the nature of the decay and penetration of the surface-state orbitals into the solid. Our linewidth calculations indicate that acoustic surface plasmons should be well defined in the energy range from zero to $\sim 400$ meV.
description: 8 pages, two columns, 7 figures, to appear in Phys. Rev. B
Leptoscyphus beckettianus J. J. Engel
Creators: name: Söderström, Lars
name: Hagborg, Anders
name: Konrat, Matt Von
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Jungermanniopsida
Jungermanniales
Lophocoleaceae
Leptoscyphus
Leptoscyphus beckettianus

description: Leptoscyphus beckettianus (Steph.) R.M.Schust. ex J.J.Engel,
Nova Hedwigia 93 (3–4): 402, 2011 (see Engel 2011). BASIONYM: Chiloscyphus beckettianus Steph., Bull. Herb. Boissier (sér. 2) 8 (1): 59 (235), 1908 (see Stephani 1908a).
description: Published as part of Söderström, Lars, Hagborg, Anders & Konrat, Matt Von, 2014, Early Land Plants Today: Index of Liverworts & Hornworts 2011 - 2012, pp. 61-85 in Phytotaxa 170 (2) on page 71, DOI: 10.11646/phytotaxa.170.2.1, http://zenodo.org/record/4779611