cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Cooperative Wool Marketing Pools and Warehouses: Industry Update, Issues and Options
Creators: name: Hogeland, Julie A.
name: Sronce, Philip W.
name: Hogeland, Julie A.
name: Sronce, Philip W.
Publisher: name: Unknown
Year: 1984
Subjects: subject: Agribusiness
subject: Wool
subject: cooperative
subject: pool

description: In 1981, there were 158 cooperative wool marketing pools and 9 cooperative warehouses. Pools operate a few days each year to assemble and sell wool. Warehouses operate daily and also grade, store, and blend wool to buyer specifications. Pools frequently sell without knowledge of grade and clean fiber content. Producer bargaining power is also limited by declining wool production, large variation in pool membership and volume, and overlapping marketing territories among warehouses. Processing, consolidating pool and warehouse marketing, and changing pool pricing to reflect clean fiber content are options to lower marketing costs and better market power.
Photoionization of astrophysically relevant atomic ions at PIPE
Creators: name: Schippers, Stefan
name: Müller, Alfred
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We review recent work on the photoionization of atomic ions of astrophysical interest that has been carried out at the photon-ion merged-beams setup PIPE, a permanently installed end station at the XUV beamline P04 of the PETRAIII synchrotron radiation source operated by DESY in Hamburg, Germany. Our results on single and multiple L-shell photoionization of Fe+, Fe2+, and Fe3+ ions and on single and multiple K-shell photoionization of C-, C+, C4+, Ne+, and Si2+ ions are discussed in astrophysical contexts. Moreover, these experimental results bear witness of the fact, that the implementation of the photon-ion merged-beams method at one of the world's brightest synchrotron light sources has led to a breakthrough for the experimental study of atomic inner-shell photoionization processes with ions.
description: 18 pages, 7 figures, 1 table, 113 references
Generalized parton distributions from nucleon form factor data
Creators: name: Diehl, M.
name: Feldmann, Th.
name: Jakob, R.
name: Kroll, P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present a simple empirical parameterization of the x- and t-dependence of generalized parton distributions at zero skewness, using forward parton distributions as input. A fit to experimental data for the Dirac, Pauli and axial form factors of the nucleon allows us to discuss quantitatively the interplay between longitudinal and transverse partonic degrees of freedom in the nucleon ("nucleon tomography"). In particular we obtain the transverse distribution of valence quarks at given momentum fraction x. We calculate various moments of the distributions, including the form factors that appear in the handbag approximation to wide-angle Compton scattering. This allows us to estimate the minimal momentum transfer required for reliable predictions in that approach to be around |t|~3 GeV^2. We also evaluate the valence contributions to the energy-momentum form factors entering Ji's sum rule.
description: 69 pages, 36 figures. v2: small improvements in text and figures; references added
Farm to Fork Initiative to Restrict European Union Agricultural Inputs May Increase Food Prices, Further Global Food Insecurity
Creators: name: Beckman, Jayson
name: Ivanic, Maros
name: Jelliffe, Jeremy
name: Baquedano, Felix
name: Scott, Sara
name: Beckman, Jayson
name: Ivanic, Maros
name: Jelliffe, Jeremy
name: Baquedano, Felix
name: Scott, Sara
Publisher: name: Unknown
Year: 2021
Subjects: subject: Agricultural and Food Policy
subject: Environmental Economics and Policy
subject: International Development
subject: International Relations/Trade
subject: Land Economics/Use
subject: Production Economics
subject: Farm to Fork
subject: Biodiversity Strategies
subject: European Commission
subject: Trade policies
subject: EU Green Deal
subject: Food costs

description: Researchers at USDA’s Economic Research Service (ERS) recently evaluated the potential impacts of the Farm to Fork and Biodiversity Strategies proposed by the European Commission—the executive body of the European Union (EU). The initiative calls for restrictions in the use of certain agricultural inputs in EU agricultural production by 2030. The proposal pledges to use European Commission trade policies and other international efforts to promote a vision of sustainability in agriculture, which could have implications beyond countries in the EU.
Estimating Production of Forest Cooperative Members
Creators: name: Hoffman, Benjamin F.
name: Hoffman, Benjamin F.
Publisher: name: Unknown
Year: 1985
Subjects: subject: Agribusiness
subject: Silviculture
subject: forestry cooperatives
subject: forestry management
subject: marketing

description: This study develops methods of estimating annual marketings by members of forestry cooperatives in order to formulate a long range business plan for the cooperative. A reliable prediction of total annual sales by the cooperative is possible, but individual product estimates are subject to significant errors. The report details cautions concerning the development and implementation of projections and makes specific recommendations. The system also permitted estimation of landowner service needs.
Forestry Cooperatives: Organization and Performance
Creators: name: Simon, Donald M.
name: Scoville, Orlin J.
name: Simon, Donald M.
name: Scoville, Orlin J.
Publisher: name: Unknown
Year: 1982
Subjects: subject: Agribusiness
subject: Forestry
subject: cooperatives
subject: forestry cooperatives
subject: timber
subject: woodland
subject: forest owner
subject: rural development

description: This study describes organizational structure, functions, and facilities of forestry cooperatives in the United States. It evaluates their economic performance and explores current problem areas and potentials for future development. Cooperative organization provides woodland owners professional forestry assistance, in terms of forest management, marketing, and educational activities. Some cooperatives consistently provide these services at less than prevailing rates and obtain higher than average stumpage prices on a local basis. In addition, forestry cooperatives have the potential to play a great role in marketing alternative forest products, such as wood for energy. Woodland-owner organizations have a wide range of sizes, business activities, types of forest products handled, and variety of services offered. However, there are potentially limiting factors that could inhibit somewhat cooperative organization on a long-term basis.
Mendeleev and the Periodic Table of Elements
Creators: name: Kak, Subhash
Publisher: name: arXiv
Year: 2004
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: This note presents reasons why Mendeleev chose Sanskrit names (now superseded) for eight elements in the periodic table.
description: 10 pages; with two additional explanatory tables
Multiplexed Single Photons from Deterministically Positioned Nanowire Quantum Dots
Creators: name: Koong, Zhe-Xian
name: Ballesteros-Garcia, Guillem
name: Proux, Raphaël
name: Dalacu, Dan
name: Poole, Philip J.
name: Gerardot, Brian D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Solid-state quantum emitters are excellent sources of on-demand indistinguishable or entangled photons and can host long-lived spin memories, crucial resources for photonic quantum information applications. However, their scalability remains an outstanding challenge. Here we present a scalable technique to multiplex streams of photons from multiple independent quantum dots, on-chip, into a fiber network for use off-chip. Multiplexing is achieved by incorporating a multi-core fiber into a confocal microscope and spatially matching the multiple foci, seven in this case, to quantum dots in an array of deterministically positioned nanowires. First, we report the coherent control of the emission of biexciton-exciton cascade from a single nanowire quantum dot under resonant two-photon excitation. Then, as a proof-of-principle demonstration, we perform parallel spectroscopy on the nanowire array to identify two nearly identical quantum dots at different positions which are subsequently tuned into resonance with an external magnetic field. Multiplexing of background-free single photons from these two quantum dots is then achieved. Our approach, applicable to all types of quantum emitters, can readily be scaled up to multiplex $>100$ quantum light sources, providing a breakthrough in hardware for photonic based quantum technologies. Immediate applications include quantum communication, quantum simulation, and quantum computation.
description: 10 pages, 4 figures
Farmer Cooperatives: Commercial Farmer Members and Use
Creators: name: Kraenzle, Charles A.
name: Wissman, Roger A.
name: Gray, Thomas W.
name: Rotan, Beverly L.
name: Adams, Celestine C.
name: Kraenzle, Charles A.
name: Wissman, Roger A.
name: Gray, Thomas W.
name: Rotan, Beverly L.
name: Adams, Celestine C.
Publisher: name: Unknown
Year: 1989
Subjects: subject: Agribusiness
subject: Farmer cooperatives
subject: marketing cooperatives
subject: farm supply cooperatives
subject: cooperative members
subject: commercial farmer

description: Seventy-eight percent of commercial farmers were either members or nonmember patrons of marketing/farm supply cooperatives in 1986 compared with more than 76 percent in 1980. From 1980 to 1986, the percentage of commercial farmers who were members of cooperatives increased from 65 to 66 percent. Nonmember patrons held steady at 12 percent. The biggest change was an increase in percent of members among commercial farmers with sales of $500,000 and over. Members among this group increased from 56 percent in 1980 to 69 percent in 1986. The percentage of commercial farmers with multiple memberships increased and the percentage of farmers with inactive memberships decreased. The percentage using cooperatives for marketing and for purchasing increased. Forty-nine percent used a cooperative for marketing, and 71 percent used a cooperative to purchase farm supplies in 1986. Data for the study were obtained from surveys by the National Agricultural Statistics Service (formerly Statistical Reporting Service), U.S. Department of Agriculture.
The relationship between baccalaureate nursing admissions criteria and student outcomes
Creators: name: Fraser, Shelley Evelyn
Publisher: name: University of British Columbia
Year: 2009

description: A longitudinal correlational study was conducted to examine the relationship between admissions criteria for direct entry with advanced standing into the third year of the University of British Columbia's Baccalaureate Nursing Program and student outcomes, operationalized as students' academic achievement and perceived ability in clinical practice. The aim of this study was to determine whether the current admissions process identifies applicants who succeed in their academic studies and clinical practice. A further aim was to determine whether the resource intensive procedure of reviewing and rating supplemental application and interview materials has greater predictive power than that of admission grade point average (GPA) alone. The findings indicate several correlations between the admissions criteria and the dependent variable of first-term GPA. A significant positive relationship was found between the students' admission GPA and their first-term GPA (r = .55). Interestingly, a significant negative relationship was found between the students' supplemental scores and their first-term GPA (r = -.44). The relationship between the students' interview ratings and their academic achievement (first-term GPA) was not statistically significant. The findings indicate one significant correlation between the admissions criteria and the dependent variable of Clinical Skills Self-efficacy Scale scores (CSSE Scale). A significant negative relationship was found between the students' interview scores and their scores on the CSSE Scale 'later' measure (r = -.40). None of the other relationships between the admissions criteria variables and perceived ability in clinical practice (CSSE Scale) was significant. The findings suggest that admission GPA is the strongest predictor of a student's first-term G PA and that the interview and supplemental data added little to the prediction equation. There is little evidence to recommend valid, non-academic predictors of nursing students' academic achievement. Consequently, admissions committees bent on considering qualities beyond pre-admission GPA remain in uncharted waters.
Prospects for the Search for a Doubly-Charged Higgs in the Left-Right Symmetric Model with ATLAS
Creators: name: Azuelos, G.
name: Benslama, K.
name: Ferland, J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We estimate the potential for observation at the LHC of a doubly charged Higgs boson, as predicted in Left-Right symmetric models. Single production by vector boson fusion, $W^+W^+ \to Δ_{L,R}^{++}$ and pair production by the Drell-Yan process $q \bar q \to Δ_{L,R}^{++}Δ_{L,R}^{--}$ are considered. Various decay channels are investigated: dileptons, including pairs of $τ$'s, as well as $WW$
Quantum Gauge Theories
Creators: name: Mesref, L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The scope of this review is to give a pedagogical introduction to some new calculations and methods developed by the author in the context of quantum groups and their applications. The review is self- contained and serves as a "first aid kit" before one ventures into the beautiful but bewildering landscape of Woronowicz's theory. First, we present an up-to-date account of the methods and definitions used in quantum gauge theories. Then, we highlight our new results. The present paper is by no means an exhaustive overview of this swiftly developing subject.
description: 45 pages, minor corrections, reference added
Political Economy of Anglo-French Trade, 1689-1899: Agricultural Trade Policies, Alcohol Taxes, and War
Creators: name: Nye, John V.C.
name: Nye, John V.C.
Publisher: name: Unknown
Year: 2009
Subjects: International Development
International Relations/Trade
Political Economy

description: Britain – contrary to received wisdom – was not a free trader for most of the 1800s and, despite repeal of the Corn Laws, continued to have higher tariffs than the French until the last quarter of the century. War with Louis XIV from 1689 led to the end of all trade between Britain and France for a quarter of a century. The creation of powerful protected interests both at home and abroad (notably in the form of British merchants, and investors in Portuguese wine) led to the imposition of prohibitively high tariffs on French imports -- notably on wine and spirits -- when trade with France resumed in 1714. Protection of domestic interests from import competition allowed the state to raise domestic excises which provided increased government revenues despite almost no increases in the taxes on land and income in Britain. The state ensured compliance not simply through the threat of lower tariffs on foreign substitutes but also through the encouragement of a trend towards monopoly production in brewing and restricted retail sales of beer (which began around 1700 and continued throughout the eighteenth century). This history is analyzed in terms of its effects on British fiscal and commercial policy from the early 1700s to the end of the nineteenth century. The result is a fuller, albeit revisionist account of the rise of the modern state that calls into question a variety of theses in economics and political science that draw on the naive view of a liberal Britain unilaterally moving to free trade in the nineteenth century.
'Sling effect' in the development of atmospheric cascades induced by primary cosmic ray nuclei
Creators: name: Erlykin, A. D.
name: Wolfendale, A. W.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The 'Sling effect' appears when a fragment of a projectile nucleus emitted after its peripheral collision with a target nucleus is caused to rotate with a high spin. The spinning fragment has a deformed shape and looks like an oblate ellipsoid. Due to the virtual non-compressibility of nuclear matter, and the polarization of the spin in the plane transverse to the input momentum of the projectile nucleus such an ellipsoid has a reduced mean interaction cross-section compared with a non-spinning fragment which has a spherical shape. Purely geometrical arguments dictate that such an ellipsoidal nucleus should have additional fluctuations of cross-section even at a fixed impact parameter dependent on the orientation angle between the axis of the ellipsoid and the vector connecting the centers of projectile and target nucleus. The number of 'wounded nucleons' in the projectile nucleus participating in the interaction correlates strongly with the interaction cross-section. All these effects lead to a non-exponential attenuation of fragments and increased probability for a fragment to penetrate down to a larger depth in the absorber, than normal. If the sling effect appears in the interaction of a primary cosmic ray nucleus with nuclei in the atmosphere the induced atmospheric cascade will have a slower attenuation, and thereby can help to reduce some important inconsistencies in the interpretation of the existing experimental data on extensive air showers, observed in the lower half of the atmosphere. The paperr gives numerical estimates of the sling effect.
description: 14 pages, 7 figures, accepted for publication in J.Phys.G
Probing Galaxy Formation with He II Cooling Lines
Creators: name: Yang, Yujin
name: Zabludoff, Ann I.
name: Davé, Romeel
name: Eisenstein, Daniel J.
name: Pinto, Philip A.
name: Katz, Neal
name: Weinberg, David H.
name: Barton, Elizabeth J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using high resolution cosmological simulations, we study hydrogen and helium gravitational cooling radiation. We focus on the HeII cooling lines, which arise from gas with a different temperature history (T_max ~ 10^5K) than HI line emitting gas. We examine whether three major atomic cooling lines, HI 1216A, HeII 1640A and HeII 304A are observable, finding that HI 1216A and HeII 1640A cooling emission at z=2-3 are potentially detectable with deep narrow band (R>100) imaging and/or spectroscopy from the ground. While the expected strength of HI 1216A cooling emission depends strongly on the treatment of the self-shielded phase of the IGM in the simulations, our predictions for the HeII 1640A line are more robust because the HeII 1640A emissivity is negligible below T~10^4.5 K and less sensitive to the UV background. Although HeII 1640A cooling emission is fainter than HI 1216A by at least a factor of 10 and, unlike HI 1216A, might not be resolved spatially with current observational facilities, it is more suitable to study gas accretion in the galaxy formation process because it is optically thin and less contaminated by the recombination lines from star-forming galaxies. The HeII 1640A line can be used to distinguish among mechanisms for powering the so-called "Lyman alpha blobs" -- including gravitational cooling radiation, photoionization by stellar populations, and starburst-driven superwinds -- because (1) HeII 1640A emission is limited to very low metallicity (log(Z/Z_sun) < -5.3) and Population III stars, and (2) the blob's kinematics are probed unambiguously through the HeII 1640A line width, which, for cooling radiation, is narrower (sigma < 400 km/s) than typical wind speeds.
description: 15 pages, 9 figures. Accepted for publication in ApJ
Encuentros con la escritura en el ingreso a la educación superior: representaciones sociales de los estudiantes en seis áreas de conocimiento
Creators: name: Navarro, Federico
Publisher: name: figshare
Year: 2020
Subjects: subject: 200401 Applied Linguistics and Educational Linguistics
subject: FOS: Languages and literature

description: El aumento del número de alumnos que acceden a la educación superior arroja a su vez elevadas tasas de abandono en el primer año universitario, lo que ha multiplicado las iniciativas de acompañamiento durante el aprendizaje. Sin embargo, es poco lo que se sabe sobre las experiencias y expectativas de los nuevos estudiantes. Esta investigación da cuenta de las representaciones socialesde estudiantes de nuevo ingreso sobre escritura académica y su enseñanza a partir de 360 respuestas abiertas de 180 informantes en seis áreas de conocimiento (Artes, Humanidades, Ingenierías, Ciencias de la Salud, Pedagogías en Ciencias y Ciencias Sociales) de una universidad metropolitana y estatal de Chile. Se realizó una codificación cualitativa mediante categorías emergentes yuna cuantificación de las frecuencias, un control de fiabilidad entre los analistas y una clasificación por disciplinas. Los resultados evidencian que para losestudiantes son los aspectos discursivos y procedimentales de géneros poco precisos, como, por ejemplo, el ensayo, aquellos que presentan mayores dificultades para la escritura, en particular la gestión de fuentes y puntos de vista, la adecuación a las expectativas de profesores y disciplinas, y el desarrollo de ideas. Consideran que la escritura se aprende a partir de la práctica y ejercicioactivos, acompañados de la enseñanza y los comentarios de profesores y tutores, así como de otras estrategias complementarias como la deconstrucción de textos,el modelamiento, el andamiaje y el trabajo por pares o grupos, aunque desconocen los espacios institucionales y curriculares que ofrecen enseñanza de escritura. Estos hallazgos pueden ayudar a que las instituciones aprovechen las expectativas y experiencias de los nuevos estudiantes para facilitar su integración en las prácticas escritas de sus futuras comunidades disciplinares.
Unveiling COVID-19 from Chest X-ray with deep learning: a hurdles race with small data
Creators: name: Tartaglione, Enzo
name: Barbano, Carlo Alberto
name: Berzovini, Claudio
name: Calandri, Marco
name: Grangetto, Marco
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: The possibility to use widespread and simple chest X-ray (CXR) imaging for early screening of COVID-19 patients is attracting much interest from both the clinical and the AI community. In this study we provide insights and also raise warnings on what is reasonable to expect by applying deep-learning to COVID classification of CXR images. We provide a methodological guide and critical reading of an extensive set of statistical results that can be obtained using currently available datasets. In particular, we take the challenge posed by current small size COVID data and show how significant can be the bias introduced by transfer-learning using larger public non-COVID CXR datasets. We also contribute by providing results on a medium size COVID CXR dataset, just collected by one of the major emergency hospitals in Northern Italy during the peak of the COVID pandemic. These novel data allow us to contribute to validate the generalization capacity of preliminary results circulating in the scientific community. Our conclusions shed some light into the possibility to effectively discriminate COVID using CXR.
Recent progress in the understanding of single spin asymmetries
Creators: name: Metz, A.
name: Schlegel, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Over the past years a lot of progress has been made in the understanding of single spin asymmetries in hard scattering processes. We briefly review this subject, covering the non-vanishing of time-reversal odd parton distributions, universality of fragmentation functions, and the discovery of previously unknown time-reversal odd parton distributions at subleading twist. Interestingly enough, all these developments were initiated by simple model calculations.
description: 10 pages, contribution to the Festschrift on the occasion of Klaus Goeke's 60th birthday; references added
HOW LARGE ARE NON-BUDGET-CONSTRAINT EFFECTS OF PRICES ON DEMAND?
Creators: name: Heffetz, Ori
name: Shayo, Moses
name: Heffetz, Ori
name: Shayo, Moses
Publisher: name: Unknown
Year: 2009
Subjects: subject: Demand and Price Analysis
subject: Food Consumption/Nutrition/Food Safety
subject: Marketing
subject: FOS: Economics and business
subject: consumer behavior
subject: demand
subject: price
subject: quality signals
subject: experiments

description: Elementary consumer theory assumes that prices affect demand only because they affect the budget constraint (BC). By contrast, several models suggest that prices can affect demand through other channels (e.g. because they signal quality). This alternative conjecture is consistent with evidence from marketing studies. However, neither theory nor evidence is informative regarding the magnitude of non-BC effects. The key econometric challenge arises from the fact that a change in prices typically also changes the BC. This paper uses a lab and a field experiment to disentangle BC from non-BC effects of prices on demand. In our lab experiment we find that, consistent with marketing evidence, prices positively affect stated willingness to pay. However, when examining actual demand, non-BC price elasticities are considerably smaller than BC price elasticities and are often statistically insignificant. Further, these non-BC elasticities do not increase with product uncertainty. Finally, we do not detect any non-BC effects in our field experiment.
On Molecular Flow Velocity Meters
Creators: name: Farahnak-Ghazani, Maryam
name: Mirmohseni, Mahtab
name: Nasiri-Kenari, Masoumeh
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Flow velocity is an important characteristic of the fluidic mediums. In this paper, we introduce a molecular based flow velocity meter consisting of a molecule releasing node and a receiver that counts these molecules. We consider both flow velocity detection and estimation problems, which are employed in different applications. For the flow velocity detection, we obtain the maximum a posteriori (MAP) decision rule. To analyze the performance of the proposed flow velocity detector, we obtain the error probability, its Gaussian approximation and Chernoff information (CI) upper bound, and investigate the optimum and sub-optimum sampling times accordingly. We show that, for binary hypothesis, the sub-optimum sampling times using CI upper bound are the same. Further, the sub-optimum sampling times are close to the optimum sampling times. For the flow velocity estimation, we obtain the MAP and minimum mean square error (MMSE) estimators. We consider the mean square error (MSE) to investigate the error performance of the flow velocity estimators and obtain the Bayesian Cramer-Rao (BCR) and expected Cramer-Rao (ECR) lower bounds. Further, we obtain the optimum sampling times for each estimator. It is seen that the optimum sampling times for each estimator are nearly the same. The proposed flow velocity meter can be used to design a new modulation technique in molecular communication (MC), where information is encoded in the flow velocity of the medium instead of the concentration, type, or release time of the molecules. The setup and performance analysis of the proposed flow velocity detector and estimator for molecular communication system need further investigation.
description: To be published in the IEEE Transactions on Molecular, Biological, and Multi-Scale Communications
Photoinduced Absorption Spectra of Halogen-Bridged Binuclear Metal Complexes: Possible Contrast between R_4_[Pt_2_(P_2_O_5_H_2_)_4_X]nH_2_O and Pt_2_(CH_3_CS_2_)_4_I
Creators: name: Ohara, Jun
name: Yamamoto, Shoji
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The optical conductivity of photogenerated solitons in quasi-one-dimensional halogen-bridged binuclear metal (MMX) complexes is investigated with particular emphasis on a comparison between the two family compounds R_4_[Pt_2_(P_2_O_5_H_2_)_4_X]nH_2_O (X=Cl,Br,I;R=NH_4_,Na,K,...; pop=diphosphonate=P_2_O_5_H_2_^2-^) and Pt_2_(dta)_4_I (dta=dithioacetate=CH_3_CS_2_^-^). Soliton-induced absorption spectra for the pop complexes should split into two bands, while those for the dta complex should consist of a single band.
description: J. Phys. Soc. Jpn. 74, No. 1 (2005)
Indigenous Astronomy: Best Practices and Protocols for Including Indigenous Astronomy in the Planetarium Setting
Creators: name: Lee, Annette S.
name: Maryboy, Nancy
name: Begay, David
name: Buck, Wilfred
name: Catricheo, Yasmin
name: Hamacher, Duane
name: Holbrook, Jarita
name: Kimura, Kaiu
name: Knockwood, Carola
name: Painting, Te Kahuratai
name: Varguez, Milagros
Publisher: name: arXiv
Year: 2020
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: Indigenous people have nurtured critical relationships with the stars, from keen observation and sustainable engineering to place-based ceremony, navigation, and celestial architecture for tens of thousands of years. The Indigenous relationship and knowledge of the sky is exceptional in that it encompasses mind, body, heart, and spirit. This panel is organized by the IPS's newly formed Indigenous Astronomy Working Group. It brings together Planetarium Professionals, Indigenous Star Knowledge Keepers, Indigenous Astronomy experts, Cultural Astronomers, and allies of Indigenous STEM communities from Canada, U.S., and internationally to discuss best practices for dissemination of indigenous astronomy specifically for science communicators and the planetarium community.
Machine Learning for Physics-Informed Generation of Dispersed Multiphase Flow Using Generative Adversarial Networks
Creators: name: Siddani, B.
name: Balachandar, S.
name: Moore, W. C.
name: Yang, Y.
name: Fang, R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Fluid flow around a random distribution of stationary spherical particles is a problem of substantial importance in the study of dispersed multiphase flows. In this paper we present a machine learning methodology using Generative Adversarial Network framework and Convolutional Neural Network architecture to recreate particle-resolved fluid flow around a random distribution of monodispersed particles. The model was applied to various Reynolds number and particle volume fraction combinations spanning over a range of [2.69, 172.96] and [0.11, 0.45] respectively. Test performance of the model for the studied cases is very promising.
Cell strong coupling perturbative approach to the phase diagram of ultracold bosons in optical superlattices
Creators: name: Buonsante, Pierfrancesco
name: Vezzani, Alessandro
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The phase diagram of ultracold bosons in realistic optical superlattices is addressed via second-order {\it cell} strong coupling perturbative expansions for the Bose-Hubbard model describing the system. Taking advantage of the cell partition inherent in the complex periodic modulation of a superlattice, this technique allows for the description of the unusual loophole-shaped insulator domains that may occur in the phase diagram of the system, unlike the standard perturbative approach. Furthermore, comparisons with quantum Monte Carlo simulations show that our approach provides quantitatively satisfactory results at a significantly lower computational cost than brute force numerical methods. We explicitly consider the phase diagrams for two realistic 3-periodic optical superlattices. These show that many insulator domains exhibit an unusual reentrant character, which we discuss, and suggest that the quantum phase transition relevant to the loophole-shaped insulating domains does not require extreme experimental condition in order to be observed.
description: 11 pages, 4 figures; final version. Title and abstract slightly changed. Minor typos corrected. Acknowledgments added and references updated
QUALITY SORTING AND TRADE: FIRM-LEVEL EVIDENCE FOR FRENCH WINE
Creators: name: Crozet, Matthieu
name: Head, Keith
name: Mayer, Thierry
name: Crozet, Matthieu
name: Head, Keith
name: Mayer, Thierry
Publisher: name: Unknown
Year: 2009
Subjects: Industrial Organization

description: Quality sorting and trade: Firm-level evidence for French wine Investigations of the effect of quality differences on heterogeneous performance in exporting have been limited by lack of direct measures of quality. We examine exports of French wine, matching the exporting firms to producer ratings from two wine guides. We show that high quality producers export to more markets, charge higher prices, and sell more in each market. More attractive markets are served by exporters that, on average, make lower rated Champagne. Market attractiveness has a weakly negative effect on prices and a strongly positive effect on quantities, confirming the sign predictions of a simple quality sorting model. Methodologically, we make several contributions to the literature. First, we propose an estimation method for regressions of firm-level exports on ability measures and use Monte Carlo simulations to show that it corrects a severe selection bias present in OLS estimates. Second, we show how the means of quality, price, and quantity for exporters to a given market can be used to recover estimates of core parameters (which we compare with firm-level estimates) and discriminate between productivity and quality-sorting versions of the Melitz model. Our new method regresses country means on an index of each country's attractiveness and the fixed costs of entering it. We compare our method, which utilizes explanatory variables estimated in the firm-level regressions, to the conventional approach that relies on a reduced-form relationship with proxies for attractiveness and fixed costs.
INCREASING DOMESTIC CONSUMPTION OF SOUTH AFRICAN WINES: IDENTIFYING THE KEY MARKET SEGMENTS OF THE “BLACK DIAMONDS”
Creators: name: Ndanga, Leah Z.B.
name: Louw, Andre
name: Van Rooyen, Johan
name: Ndanga, Leah Z.B.
name: Louw, Andre
name: Van Rooyen, Johan
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agribusiness
subject: Demand and Price Analysis
subject: Black Diamonds
subject: wine consumer behavior
subject: alcoholic beverages

description: Although South Africans are not predominantly wine drinkers, the industry is looking for ways to develop the local market to balance exports. The black middle class, increasingly referred to as the Black Diamonds are the most powerful marketing trend in the last 10 years as they have emerged as the strongest buying influence in the economy and making inroads in understanding this market presents a good opportunity. The study asserts that the key factors influencing the South African consumers’ behavior are age, gender, income, race and wine drinking history. The study also asserts that not only are the black middle class are different from the white middle class but within the Black Diamonds different segments exist. The industry should particularly focus on marketing to the women and the “Start me up” age group in the group as there is limited consumer knowledge about wines, but a high willingness to experiment. The study also suggests various new brand communication platforms that can be explored to reach this market as well as co-opetition between industry stakeholders.
D2.4.23 Documentation of selection/prioritisation criteria and identification of food plants in order to ensure quality with respect to transience and reproducibility
Creators: name: Institute of Food Research
Publisher: name: Zenodo
Year: 2005
Subjects: NoE and NEXUS Projects
The EuroFIR Food Platform
EuroFIR

description: Contents

 Flow diagram for EuroFIR BASIS selection process for food plants.

 Selection procedure for food plants to the food plant lists.
HUMAN(e) EXPERIENCE: Natural Gestures for Natural Interactions
Creators: name: Jaeyeon Huh
Publisher: name: Carnegie Mellon University
Year: 2020
Subjects: subject: 120304 Digital and Interaction Design
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: Gestures or behaviors are among the most important methods used to understand and communicate with others in the analog world. We, as social animals, have developed and accepted common mental models on the behavioral patterns of humans over time. The continuously evolving technologies allow us to interact with the digital world using mid-air gestures. However, the current mid-air gestural interfaces lack a human-driven approach in understanding how we present ourselves using our body in the analog world. In this thesis, I explore the possibilities to enhance natural interactions within the smart home by taking advantage of human-driven gestures and behaviors. Design research is conducted through iterative cycles of bodystorming, technology prototyping, and concept refinement. These explorations reveal processes for framing appropriate natural gestures. It also proposes a formalized structure, including a dictionary and a syntax, for natural interactions. The application of natural gestures to mid-air gestural interfaces enhances the possibility to keep our human qualities intact while adapting to the ever-changing technological world.
Complete aggregation of the Lohe tensor model with the same free flow
Creators: name: Ha, Seung-Yeal
name: Park, Hansol
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 82C10 82C22 35B37

description: The Lohe tensor model is a first-order tensor-valued continuous-time model for the aggregation of tensors with the same rank and size. It reduces to well-known aggregation models such as the Kuramoto model, the Lohe sphere model and the Lohe matrix model as special cases for low-rank tensors. We present a sufficient and necessary framework for the solution splitting property(SSP) and analyze two possible asymptotic states(completely aggregate state and bi-polar state) which can emerge from a set of initial data. Moreover, we provide a sufficient framework leading to the aforementioned two asymptotic states in terms of initial data and system parameters.
Is $f_X(1500)$ observed in the $B\to π(K)KK$ decays $ρ^0(1450)$?
Creators: name: Zou, Zhi-Tian
name: Li, Ying
name: Li, Hsiang-nan
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We suggest that the uncertain state $f_X(1500)$ observed by Belle and BaBar more than a decade ago, which has been viewed as a single scalar or a combination of several even spin resonances, is the vector $ρ^0(1450)$ reported recently by LHCb. Adopting the perturbative QCD approach, we determine the di-kaon distribution amplitudes with the $ρ^0(1450)$ resonance from the LHCb data for the quasi-two-body decays $B^{\pm}\to π^{\pm}ρ^0(1450)\toπ^{\pm}K^+K^-$. It is then shown that the $B^+ \to K^+K^+K^-$ decay spectrum around the invariant mass $M(K^+K^-)\sim 1.5~\rm GeV$ measured by BaBar can be well described by the resonant contribution from $ρ^0(1450)$. The broad structure in the $B^{+}\to K^{+} K_SK_S$ spectrum around the invariant mass $1.5~\rm GeV$ of a $K_SK_S$ pair, which $ρ^0(1450)$ cannot decay into because of Bose-Einstein statistics, can be accounted for by a nonresonant $S$-wave contribution alone. The branching fractions and/or the direct $CP$ asymmetries of the $B^{\pm}\to π^{\pm}ρ^0(1450)\toπ^{\pm}K^+K^-$, $B^{+}\to K^{+}ρ^0(1450)\to K^+K^+K^-$ and $B^{0}\to K^{0}ρ^0(1450)\to K^0K^+K^-$ modes are predicted, which can be tested at the ongoing LHCb and Belle-II experiments. We encourage experimental colleagues to scrutinize our postulation by analyzing relevant data with higher precision.
description: 7 Pages, 3 Figures. Accepted by PRD
Primeval symmetries
Creators: name: Aldrovandi, R.
name: Cuzinatto, R. R.
name: Medeiros, L. G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A detailed examination of the Killing equations in Robertson-Walker coordinates shows how the addition of matter and/or radiation to a de Sitter Universe breaks the symmetry generated by four of its Killing fields. The product U = (a^2)(dH/dt) of the squared scale parameter by the time-derivative of the Hubble function encapsulates the relationship between the two cases: the symmetry is maximal when U is a constant, and reduces to the six-parameter symmetry of a generic Friedmann-Robertson-Walker model when it is not. As the fields physical interpretation is not clear in these coordinates, comparison is made with the Killing fields in static coordinates, whose interpretation is made clearer by their direct relationship to the Poincare group generators via Wigner-Inonu contractions.
description: 16 pages, 2 tables; published version
MESSAGE ON THE BOTTLE: COLOURS AND SHAPES OF WINE LABELS
Creators: name: De Mello, Luiz
name: Pires, Ricardo
name: De Mello, Luiz
name: Pires, Ricardo
Publisher: name: Unknown
Year: 2009
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: wine labels

description: Wine consumers rely mainly on the label on the bottle to infer the quality of its content. But there is little empirical research on how colours can be interacted with shapes in the design of wine labels. This study draws from an experiment using data from Spain and shows that there are strong preferences for selected colour-shape combinations in label design. Surprisingly, colour alone does not elicit as strong preferences as certain shapes do, at least when they are assessed irrespectively of the shapes featured in the label. Other combinations, on the other hand, are very resilient, especially those that contain colour hues, such as brown, yellow, black and green, in labels with salient rectangular and hexagonal patterns.
Photoacoustic fluctuation imaging: theory and application to blood flow imaging
Creators: name: Vilov, Sergey
name: Godefroy, Guillaume
name: Arnal, Bastien
name: Bossy, Emmanuel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Photoacoustic fluctuation imaging, which exploits randomness in photoacoustic generation, provides enhanced images in terms of resolution and visibility, as compared to conventional photoacoustic images. While a few experimental demonstrations of photoacoustic fluctuation imaging have been reported, it has to date not been described theoretically. In the first part of this work, we propose a theory relevant to fluctuations induced either by random illumination patterns or by random distributions of absorbing particles. The theoretical predictions are validated by Monte Carlo finite-difference time-domain simulations of photoacoustic generation in random particle media. We provide a physical insight into why visibility artefacts are absent from second-order fluctuation images. In the second part, we demonstrate experimentally that harnessing randomness induced by the flow of red blood cells produce photoacoustic fluctuation images free of visibility artefacts. As a first proof of concept, we obtain two-dimensional images of blood vessel phantoms. Photoacoustic fluctuation imaging is finally applied in vivo to obtain 3D images of the vascularization in a chicken embryo.
title: Problems of quantum‐statistical thermodynamics of plasmas: High‐ and low‐temperature limits and analyticity
Creators: name: Ebeling, Werner
Publisher: name: Humboldt-Universität zu Berlin
Year: 2024
Subjects: subject: analyticity of quantum thermodynamics
subject: classical limit
subject: Coulomb systems
subject: Hartree contribution
subject: 570 Biologie

description: The OCP plasma model which has been the favourite plasma model of Gabor Kalman is simple but on the other side connected with some principal difficulties, and gave rise to some controversies. We discuss here the three main problems of Coulomb systems, the limit cases of the parameter ξ∼e2/ℏT$$ \xi \sim \left({e}^2/\mathrm{\hslash}\sqrt{T}\right) $$: ξ→±∞$$ \xi \to \pm \infty $$and ξ→0$$ \xi \to 0 $$. We show first that Taylor expansions in (1/ξ)∼ℏ$$ \left(1/\xi \right)\sim \mathrm{\hslash} $$are in general divergent and have asymptotic character and expansions in ξ∼e2$$ \xi \sim {e}^2 $$are convergent. We study the analytic properties of the partition functions and the thermodynamic functions. Assuming analytizity with respect to the relevant physical parameter for pair interactions ξ∼eiej/ℏT$$ \xi \sim \left({e}_i{e}_j/\mathrm{\hslash}\sqrt{T}\right) $$we can show that the analyticity with respect to this parameter allows to extend several OCP—properties, except the exchange functions, to many component systems by analytic continuation of the case ξ<0$$ \xi <0 $$to ξ>0$$ \xi >0 $$. In particular follows that the Taylor coefficients of analytic OCP functions may be extended to any multicomponent Coulomb system. Further, we discuss also the most difficult case ξ→0$$ \xi \to 0 $$and the problem with contributions linear in the interaction, the so‐called Hartree terms.
Structured beams invariant to coherent diffusion
Creators: name: Smartsev, Slava
name: Chriki, Ronen
name: Eger, David
name: Firstenberg, Ofer
name: Davidson, Nir
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Bessel beams are renowned members of a wide family of non-diffracting (propagation-invariant) fields. We report on experiments showing that non-diffracting fields are also immune to diffusion. We map the phase and magnitude of structured laser fields onto the spatial coherence between two internal states of warm atoms undergoing diffusion. We measure the field after a controllable, effective, diffusion time by continuously generating light from the spatial coherence. The coherent diffusion of Bessel-Gaussian fields and more intricate, non-diffracting fields is quantitatively analyzed and directly compared to that of diffracting fields. To elucidate the origin of diffusion invariance, we show results for non-diffracting fields whose phase pattern we flatten.