cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Calceolaria aquatica Braun & Bouche 1852
Creators: name: Puppo, Pamela
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Lamiales
Calceolariaceae
Calceolaria
Calceolaria aquatica

description: Calceolaria aquatica Braun & Bouché (1852: 2). Fig. 4 –A-C.
 Type (neotype designated by Molau 1988: 251):— BOLIVIA. Cochabamba: Prov. Quillacollo, SE slopes of Cerro Tunari, between Quillacollo and Morochata, 3300–3500 m, 10 March 1983, Molau 691 (S, GB, LPB, not seen).
Annual or perennial herb, 24–80 cm tall, stems succulent, greenish. Leaves petiolate; petioles 1.4–3.5 cm long, without nodal wing; lamina ovate to elliptic, 5.1–8.1 × 3–4.2 cm, laciniate to lobate, margins dentate. Sepals ovate to lanceolate, 6–6.2 × 3–5 mm, green. Corolla pale yellow, 12–17 × 15–18 mm; stamens with upper theca 1.8–2.2 mm long, lower theca 1.3–1.7 mm long, connective 0.4–1 mm long, without dorsal protuberance. Capsules globose, 5–6 mm long.
 Distribution: —Endemic to the department of Cochabamba in Bolivia between 2300–3600 m.
description: Published as part of Puppo, Pamela, 2014, Revision of the Calceolaria tripartita s. l. species complex (Calceolariaceae) using multivariate analyses of morphological characters, pp. 61-78 in Phytotaxa 167 (1) on page 68, DOI: 10.11646/phytotaxa.167.1.3, http://zenodo.org/record/5138579
Ab initio study of the migration of intrinsic defects in 3C-SiC
Creators: name: Bockstedte, Michel
name: Mattausch, Alexander
name: Pankratov, Oleg
Publisher: name: arXiv
Year: 2003
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The diffusion of intrinsic defects in 3C-SiC is studied using an ab initio method based on density functional theory. The vacancies are shown to migrate on their own sublattice. The carbon split-interstitials and the two relevant silicon interstitials, namely the tetrahedrally carbon-coordinated interstitial and the <110>-oriented split-interstitial, are found to be by far more mobile than the vacancies. The metastability of the silicon vacancy, which transforms into a vacancy-antisite complex in p-type and compensated material, kinetically suppresses its contribution to diffusion processes. The role of interstitials and vacancies in the self-diffusion is analyzed. Consequences for the dopant diffusion are qualitatively discussed. Our analysis emphasizes the relevance of mechanisms based on silicon and carbon interstitials.
The Demand for Disaggregated Food-Away-from-Home and Food-at-Home Products in the United States
Creators: name: Okrent, Abigail M.
name: Alston, Julian M.
name: Okrent, Abigail M.
name: Alston, Julian M.
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agricultural and Food Policy
subject: Demand and Price Analysis
subject: Food Consumption/Nutrition/Food Safety
subject: Food demand
subject: food away from home (FAFH)
subject: demand systems
subject: elasticities.

description: Food away from home (FAFH) comprises nearly half of all U.S. consumer food expenditures. Hence, policies designed to influence nutritional outcomes would be incomplete if they did not address the role of FAFH. However, because of data limitations, most studies of the response of food demand to policy changes have ignored the role of FAFH, and those studies that have included FAFH have treated it as a single good. We, therefore, estimate demand for 43 disaggregated FAFH and food-at-home (FAH) products, using a 2-stage budgeting framework. We find that the demands for disaggregated FAFH products differ in price responsiveness and tend to be more sensitive to changes in food spending patterns than FAH products. Many foods are found to have statistically significant substitution and complementary relationships within and among food groups. Predicted changes in quantities based on our estimates that include all goods and services and those estimates that include only a subset of foods differ substantially, implying that evaluations of health and nutrition policy based on elasticities of demand for only a subset of goods may be misleading.
Hydrodynamic limit of asymmetric exclusion processes under diffusive scaling in $d\ge 3$
Creators: name: Landim, C.
name: Sued, R. M.
name: Valle, G.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 60K35, 35Q10, 82A35

description: We consider the asymmetric exclusion process. We start from a profile which is constant along the drift direction and prove that the density profile, under a diffusive rescaling of time, converges to the solution of a parabolic equation.
Slowdown and splitting of gap solitons in apodized Bragg gratings
Creators: name: Mak, William C. K.
name: Malomed, Boris A.
name: Chu, Pak L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We study the motion of gap solitons in two models of apodized nonlinear fiber Bragg gratings (BGs), with the local reflectivity (LR) varying along the fiber. A single step of LR, and a periodic array of alternating steps with opposite signs (a "Bragg superstructure") are considered. A challenging possibility is to slow down and eventually halt the soliton by passing it through the step of increasing reflectivity, thus capturing a pulse of standing light. First, we develop an analytical approach, assuming adiabatic evolution of the soliton, and making use of the energy conservation and balance equation for the momentum. Comparison with simulations shows that the analytical approximation is quite accurate (unless the inhomogeneity is too steep): the soliton is either transmitted across the step or bounces back. If the step is narrow, systematic simulations demontrate that the soliton splits into transmitted and reflected pulses (splitting of a BG soliton which hits a chirped grating was observed in experiments). Moving through the periodic "superstructure", the soliton accummulates distortion and suffers radiation loss if the structure is composed of narrow steps. The soliton moves without any loss or irreversible deformation through the array of sufficiently broad steps.
description: to appear in a special issue on Wave-Optical Engineering, Journal of Modern Optics
The Mass-Metallicity Relation at $z\sim0.8$: Redshift Evolution and Parameter Dependency
Creators: name: Huang, Chi
name: Zou, Hu
name: Kong, Xu
name: Comparat, Johan
name: Lin, Zesen
name: Gao, Yulong
name: Liang, Zhixiong
name: Delubac, Timothee
name: Raichoor, Anand
name: Kneib, Jean-Paul
name: Schneider, Donald P.
name: Zhou, Xu
name: Yuan, Qirong
name: Bershady, Matthew A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The spectra of emission-line galaxies (ELGs) from the extended Baryon Oscillation Spectroscopic Survey (eBOSS) of the Sloan Digit Sky Survey (SDSS) are used to study the mass-metallicity relation (MZR) at $z\sim0.8$. The selected sample contains about 180,000 massive star-forming galaxies with $0.6 < z < 1.05$ and $9 < {\rm log}(M_{\star}/M_{\odot}) < 12$. The spectra are stacked in bins of different parameters including redshift, stellar mass, star formation rate (SFR), specific star formation rate (sSFR), half-light radius, mass density, and optical color. The average MZR at $z\sim0.83$ has a downward evolution in the MZR from local to high-redshift universe, which is consistent with previous works. At a specified stellar mass, galaxies with higher SFR/sSFR and larger half-light radius have systematically lower metallicity. This behavior is reversed for galaxies with larger mass density and optical color. Among the above physical parameters, the MZR has the most significant dependency on SFR. Our galaxy sample at $0.6
Alternative Annual Forage Crop Options for Northern Great Plains Cattle Producers: A South Dakota Case Study
Creators: name: Parvez, Md Rezwanul
name: Fausti, Scott W.
name: Nleya, Thandiwe
name: Johnson, Patricia S.
name: Olson, Kenneth C.
name: Rickertsen, John
name: Parvez, Md Rezwanul
name: Fausti, Scott W.
name: Nleya, Thandiwe
name: Johnson, Patricia S.
name: Olson, Kenneth C.
name: Rickertsen, John
Publisher: name: Unknown
Year: 2012
Subjects: subject: Crop Production/Industries
subject: Farm Management
subject: alternative forage crops
subject: risk management
subject: case studies

description: In the Northern Great Plains, crop and livestock producers view forage crop production as an important component of their farm management system. During periods of increased environmental risk, alternative annual forage crops may provide producers with a risk reducing alternative to traditional forage crops. An alternative forage crop production study (20 varieties) was conducted by SDSU. Production yield data was analyzed using alternative decision making criteria when outcomes are uncertain. Empirical results provide insight on forage crop planting decisions with respect to the importance of optimal harvest timing, and the ranking of alternative forage crops as a cash crop or as a grazing resource for livestock. The management decision criteria used to evaluate the economic value of the forage crops included are: a) Expected Value, b) Max-Min, and c) Minimum Variance. Triticale and Barley rank the highest with respect to Expected Value criteria, but Oats and Barley dominate based on risk avoidance criteria (Max-Min and Minimum Variance criteria). Rankings for summer forage crops indicate that sorghum varieties ranked highest for economic value. However, the millet varieties rank higher with respect to the risk avoidance criteria.
Optimal Size of a Complex Network
Creators: name: Hong, H.
name: Kim, Beom Jun
name: Choi, M. Y.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We investigate the response behavior of an Ising system, driven by an oscillating field, on a small-world network, with particular attention to the effects of the system size. The responses of the magnetization to the driving field are probed by means of Monte Carlo dynamic simulations with the rewiring probability varied. It is found that at low and high temperatures the occupancy ratio, measuring how many spins follow the driving field, behaves monotonically with the system size. At intermediate temperatures, on the other hand, the occupancy ratio first grows and then reduces as the size is increased, displaying a resonance-like peak at a finite value of the system size. In all cases, further increase of the size eventually leads to saturation to finite values; the size at which saturation emerges is observed to depend on the temperature, similarly to the correlation length of the system.
description: 5 pages, 6 figures. To appear in PRE
Red is Sus: Automated Identification of Low-Quality Service Availability Claims in the US National Broadband Map
Creators: name: Nabi, Syed Tauhidun
name: Wen, Zhuowei
name: Ritter, Brooke
name: Hasan, Shaddi
Publisher: name: arXiv
Year: 2024
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: The FCC's National Broadband Map aspires to provide an unprecedented view into broadband availability in the US. However, this map, which also determines eligibility for public grant funding, relies on self-reported data from service providers that in turn have incentives to strategically misrepresent their coverage. In this paper, we develop an approach for automatically identifying these low-quality service claims in the National Broadband Map. To do this, we develop a novel dataset of broadband availability consisting of 750k observations from more than 900 US ISPs, derived from a combination of regulatory data and crowdsourced speed tests. Using this dataset, we develop a model to classify the accuracy of service provider regulatory filings and achieve AUCs over 0.98 for unseen examples. Our approach provides an effective technique to enable policymakers, civil society, and the public to identify portions of the National Broadband Map that are likely to have integrity challenges.
description: 17 pages
Les faibles effets d’une « fat tax » sur les achats alimentaires des ménages français : une approche par les nutriments
Creators: name: Allais, Olivier
name: Bertail, Patrice
name: Nichele, Veronique
name: Allais, Olivier
name: Bertail, Patrice
name: Nichele, Veronique
Publisher: name: Unknown
Year: 2010
Subjects: Consumer/Household Economics
Demand and Price Analysis
Food Consumption/Nutrition/Food Safety
Health Economics and Policy

description: L’Organisation Mondiale de la Santé considère le surpoids et l’obésité comme un des problèmes majeurs de santé publique dans le monde. En France, selon l’Enquête Individuelle et Nationale sur les Consommations Alimentaires (INCA2 2006-2007), 38,9 % des hommes et 24,2 % des femmes adultes sont en surpoids et 11,6 % des adultes hommes et femmes sont obèses. En 2002, le coût médical de l’obésité est estimé entre 1,5 et 4,6 % des dépenses de santé selon l’Institut de recherche et documentation en économie de la santé (IRDES). Le développement de l’obésité et ses répercussions économiques ont conduit les pouvoirs publics à s’interroger sur les mesures susceptibles de modifier les comportements de consommation alimentaire. En estimant un système de demande, on évalue l’influence et la pertinence d’une politique de taxation des aliments à fortes teneurs en calories, en graisses et en sucres, dénommée « fat tax ». Nous montrons que les effets de cette « fat tax » sur les achats d’aliments et sur les achats de calories et de nutriments qui en résultent sont faibles. Son influence sur le poids des individus à court terme est également faible, mais tend à augmenter dans le long terme. Enfin, si la « fat tax » génère d'importantes recettes fiscales, elle affecte plus les ménages modestes.
Calceolaria rivularis Kraenzl.
Creators: name: Puppo, Pamela
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Lamiales
Calceolariaceae
Calceolaria
Calceolaria rivularis

description: Calceolaria rivularis Kraenzl. in Fedde (1905: 83). Fig. 4 –D-F.
 Type (lectotype designated by Molau 1988: 252):— BOLIVIA. Tarija: Prov. Arce, Bermejo, 1800 m, 31 March 1904, Fiebrig 3394 (G!, GH!).
Perennial herb, 18–70 cm tall, stems succulent, greenish. Leaves petiolate; petioles 0.6–6.8 cm long, nodal wings when present 0.3–7.1 mm wide; lamina ovate, 2.8–15.7 × 2.5–11.3 cm, pinnatifid to deeply lobate, margins dentate to serrate. Sepals ovate, 3–9.6 × 3–7.8 mm, green. Corolla pale yellow, 6–17.5 × 8–17.6 mm; stamens with upper theca 1.2–2.3 mm long, lower theca 0.4–1.4 mm long (rarely absent), connective 1.5–4.9 mm long, dorsal protuberance present or absent. Capsules ovoid to globose, ca. 6 mm long.
 Distribution: —Southeast Peru to north Argentina between 2300–4000 m.
description: Published as part of Puppo, Pamela, 2014, Revision of the Calceolaria tripartita s. l. species complex (Calceolariaceae) using multivariate analyses of morphological characters, pp. 61-78 in Phytotaxa 167 (1) on page 68, DOI: 10.11646/phytotaxa.167.1.3, http://zenodo.org/record/5138579
Astrophysical constraints on hypothetical variability of fundamental constants
Creators: name: Levshakov, Sergei A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (Abridged) Many-multiplet (MM) method applied to three inhomogeneous samples of Keck/HIRES quasar absorption spectra gives a shift in the value of the fine-structure constant of Delta alpha/alpha = (-5.4+/-1.2) 10^{-6} in the redshift range 0.2 < z < 3.7 (Murphy et al. 2003).The 1sigma error is, however, much too small and cannot be maintained by current observations of quasars. We present a modified MM method to set an upper limit on Delta alpha/alpha from a homogeneous sample of FeII lines identified in the up-to-date best quality VLT/UVES spectrum of HE 0515-4414. Our result is Delta alpha/alpha = (1.1+/-1.1) 10^{-5} at z = 1.149. Theoretical models of the fundamental physical interactions predict that the proton-to-electron mass ratio (mu = m_p/m_e) may relate to the shift in Delta alpha/alpha as Delta mu/mu = R Delta alpha/alpha. We use VLT/UVES high-resolution observations of molecular hydrogen H2 ultraviolet absorption lines at z = 3.025 toward Q 0347-3818 to bound the value of R. The obtained constraints on Delta ln mu = (2.1+/-3.6) 10^{-5} and on Delta ln alpha = (1.1+/-1.1) 10^{-5} rule out vary large values of |R| > 6.
description: 23 pages, 5 figures, to appear in the Proceed. the 302 WE-Heraeus-Seminar on Astrophysics, Clocks and Fundamental Constants (16-18 June 2003: Bad Honnef, Germany), v2:minor edits, added references and acknowledgements
Hausdorff Dimension and Diophantine Approximation
Creators: name: Dodson, M. Maurice
name: Kristensen, Simon
Publisher: name: arXiv
Year: 2003
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We begin with a brief treatment of Hausdorff measure and Hausdorff dimension. We then explain some of the principal results in Diophantine approximation and the Hausdorff dimension of related sets, originating in the pioneering work of Vojtech Jarnik. We conclude with some applications of these results to the metrical structure of exceptional sets associated with some famous problems. It is not intended that all the recent developments be covered but they can be found in the references cited.
description: 43 pages, 5 figures, to appear in "Fractal Geometry and Applications: A Jubilee of Benoit Mandelbrot", Proceedings of Symposia in Pure Mathematics, American Mathematical Society
Additional file 1 of Integrated metabolomics, network pharmacology and biological verification to reveal the mechanisms of Nauclea officinalis treatment of LPS-induced acute lung injury
Creators: name: Xu, Han
name: Xu, Sicong
name: Li, Liyan
name: Wu, Yuhuang
name: Mai, Shiying
name: Xie, Yiqiang
name: Tan, Yinfeng
name: Li, Ailing
name: Xue, Fengming
name: He, Xiaoning
name: Li, Yonghui
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Physiology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: Additional file 1: Fig. S1. The stem of Nauclea officinalis Pierre ex Pitard (Danmu in Chinese, DM). Fig. S2. HPLC analysis of DM.
Manual Práctico de IA y Gamificación: Estrategias para Transformar el Aula
Creators: name: Espinoza, Nicolás
Publisher: name: Zenodo
Year: 2025
Subjects: IA, Gamificación, Aprendizaje Basado en Juegos, Educación, Tecnología, Docentes, ABJ

description: Este manual ofrece una guía práctica para docentes y educadores sobre cómo integrar Inteligencia Artificial (IA) y Gamificación en el aula. A través de ejemplos reales y estrategias aplicables, este eBook proporciona herramientas para diseñar experiencias de aprendizaje más dinámicas e interactivas.

 

Contenido del eBook:

✅ Introducción a la Gamificación y su impacto en la educación.

✅ Cómo utilizar IA para crear historias, desafíos y sistemas de recompensas.

✅ Herramientas y ejemplos prácticos con ChatGPT, Gimkit, HearthCards y más.

✅ Modelos de clases gamificadas con IA.

 

Licencia: CC BY-NC-SA 4.0 (Atribución-NoComercial-CompartirIgual).

 

Este material está diseñado para ser práctico, entretenido y de rápida lectura, facilitando su aplicación inmediata en el aula.
Lightening Gravity-Mediated Dark Matter
Creators: name: Kang, Yoo-Jin
name: Lee, Hyun Min
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We revisit the scenario of a massive spin-2 particle as the mediator for communicating between dark matter of arbitrary spin and the Standard Model. Taking the general couplings of the spin-2 particle in the effective theory, we discuss the thermal production mechanisms for dark matter with various channels and the dark matter self-scattering. For WIMP and light dark matter cases, we impose the relic density condition and various experimental constraints from direct and indirect detections, precision measurements as well as collider experiments. We show that it is important to include the annihilation of dark matter into a pair of spin-2 particles in both allowed and forbidden regimes, thus opening up the consistent parameter space for dark matter. The benchmark models of the spin-2 mediator are presented in the context of the warped extra dimension and compared to the simplified models.
description: 39 pages, 8 figures, v2: references and unitarity bounds added, v3: Accepted for publication in European Physical Journal C
A CCD Imaging Search for Wide Metal-Poor Binaries
Creators: name: Osorio, M. R. Zapatero
name: Martin, E. L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We explored the regions within a radius of 25 arcsec around 473 nearby, low-metallicity G- to M-type stars using (VR)I optical filters and small-aperture telescopes. About 10% of the sample was searched up to angular separations of 90 arcsec. We applied photometric and astrometric techniques to detect true physical companions to the targets. The great majority of the sample stars was drawn from the Carney-Latham surveys; their metallicities range from roughly solar to [Fe/H]=-3.5 dex. Our I-band photometric survey detected objects that are between 0 and 5 mag fainter (completeness) than the target stars; the maximum dynamical range of our exploration is 9 mag. We also investigated the literature and inspected images from the Digitized Sky Surveys to complete our search. By combining photometric and proper motion measurements, we retrieved 29 previously known companions, and identified 13 new proper motion companions. Near-infrared 2MASS photometry is provided for the great majority of them. Low-resolution optical spectroscopy (386-1000 nm) was obtained for eight of the new companion stars. These spectroscopic data confirm them as cool, late-type, metal-depleted dwarfs, with spectral classes from esdK7 to sdM3. After comparison with low-metallicity evolutionary models, we estimate the masses of the proper motion companion stars to be in the range 0.5-0.1 Msol. They are orbiting their primary stars at projected separations between ~32 and ~57000 AU. These orbital sizes are very similar to those of solar-metallicity stars of the same spectral types. Our results indicate that about 15% of the metal-poor stars have stellar companions at large orbits, which is in agreement with the binary fraction observed among main sequence G- to M-type stars and T Tauri stars.
description: Accepted for publication in A&A. (Table 1 is included)
Les comptes de la forêt française: Un outil d'évaluation intégré des biens et services (marchands et non marchands) fournis par la forêt
Creators: name: Montagne, Claire
name: Niedzwiedz, Alexandra
name: Stenger, Anne
name: Montagne, Claire
name: Niedzwiedz, Alexandra
name: Stenger, Anne
Publisher: name: Unknown
Year: 2009
Subjects: Resource /Energy Economics and Policy

description: L'importance de la forêt pour la société rend nécessaire l’évaluation du patrimoine forestier qu’elle représente, des biens et services qu’elle produit et du fonctionnement de la filière. Une comptabilité économique et environnementale régulière reposant sur une méthodologie spécifique permet de structurer l'information en un outil d'analyse unique, facilitant l'aide à la décision et l'évaluation des politiques publiques. Les évaluations réalisées pour la France montrent que la production de bois est loin d'être la seule source de bénéfice liée à la forêt. La séquestration du carbone, les activités récréatives ou les fonctions écologiques sont des exemples de services que l’on parvient à intégrer aux comptes usuels. La prise en compte des fonctions non marchandes des espaces forestiers français contribuerait, dans l’hypothèse la plus haute, à quintupler la valeur de la forêt restreinte à sa fonction d’approvisionnement en bois.
Calculating credit risk capital charges with the one-factor model
Creators: name: Emmer, Susanne
name: Tasche, Dirk
Publisher: name: arXiv
Year: 2003
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Risk Management (q-fin.RM)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: Even in the simple one-factor credit portfolio model that underlies the Basel II regulatory capital rules coming into force in 2007, the exact contributions to credit value-at-risk can only be calculated with Monte-Carlo simulation or with approximation algorithms that often involve numerical integration. As this may require a lot of computational time, there is a need for approximate analytical formulae. In this note, we develop formulae according to two different approaches: the granularity adjustment approach initiated by M. Gordy and T. Wilde, and a semi-asymptotic approach. The application of the formulae is illustrated with a numerical example. Keywords: One-factor model, capital charge, granularity adjustment, quantile derivative.
description: 15 pages, LaTeX with hyperref package, final version
Examining long run relationships among Australian beef prices
Creators: name: Chang, Hui-Shung (Christie)
name: Griffith, Garry R.
name: Chang, Hui-Shung (Christie)
name: Griffith, Garry R.
Publisher: name: Unknown
Year: 1997
Subjects: Livestock Production/Industries
Production Economics

description: The objective of this study is to determine whether long run relationships exist among Australian beef prices at the farm, wholesale and retail levels using cointegration techniques. Monthly data from 1971 to 1994 are us~d for the analysis. Preliminary results show that while all three prices considered are nonstationary, they are cointegrared. Furthennore, the retail price is weakly exogenous. The lauer result is an indication of market inefficiency due in part to price levelling behaviour at the retail level. Implications and areas for further research are also provided.
Thickness-dependent in-plane polarization and structural phase transition in van der Waals Ferroelectric CuInP2S6
Creators: name: Deng, Jianming
name: Liu, Yanyu
name: Li, Mingqiang
name: Xu, Sheng
name: Lun, Yingzhuo
name: Lv, Peng
name: Xia, Tianlong
name: Gao, Peng
name: Wang, Xueyun
name: Hong, Jiawang
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Van der Waals (vdW) layered materials have rather weaker interlayer bonding than the intra-layer bonding, therefore the exfoliation along the stacking direction enables the achievement of monolayer or few layers vdW materials with emerging novel physical properties and functionalities. The ferroelectricity in vdW materials recently attracts renewed interest for the potential use in high-density storage devices. As the thickness going thinner, the competition between the surface energy, depolarization field and interfacial chemical bonds may give rise to the modification of ferroelectricity and crystalline structure, which has limited investigations. In this work, combining the piezoresponse force microscope scanning, contact resonance imaging, we report the existence of the intrinsic in-plane polarization in vdW ferroelectrics CuInP2S6 (CIPS) single crystals, whereas below a critical thickness between 90-100 nm, the in-plane polarization disappears. The Young's modulus also shows an abrupt stiffness at the critical thickness. Based on the density functional theory calculations, we ascribe these behaviors to a structural phase transition from monoclinic to trigonal structure, which is further verified by transmission electron microscope technique. Taken together, these findings demonstrate the foundational importance of structural phase transition for enhancing the rich functionality and broad utility of vdW ferroelectrics.
Periodic billiard orbits in right triangle
Creators: name: Troubetzkoy, Serge
Publisher: name: arXiv
Year: 2004
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: There is an open set of right triangles such that for each irrational triangle in this set (i) periodic billiards orbits are dense in the phase space, (ii) there is a unique nonsingular perpendicular billiard orbit which is not periodic, and (iii) the perpendicular periodic orbits fill the corresponding invariant surface.
The pion-pion scattering lengths from DIRAC
Creators: name: Santamarina, Cibran
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The scattering lengths of a two pion system are the {\it golden magnitudes} to test the QCD predictions in the low energy sector. The DIRAC (PS-212) experiment at CERN will obtain a particular combination of the S-wave isospin 0 and 2 scattering lengths by measuring the lifetime of pionium, the hydrogen-like $π^+ π^-$ atom. This measurement tests the accurate predictions of the Chiral Perturbation Theory. The most recent experimental results are presented.
description: Talk presented at Xth International Conference on Hadron Spectroscopy HADRON '03, August 31 -- September 6, 2003, Aschaffenburg, Germany
Relevance of electron-lattice coupling in cuprates superconductors
Creators: name: Schneider, T.
name: Khasanov, R.
name: Conder, K.
name: Keller, H.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study the oxygen isotope (^{16}O,^{18}O) and finite size effects in Y_{1-x}Pr_{x}Ba_{2}Cu_{3}O_{7-δ} by in-plane penetration depth (λ_{ab}) measurements. A significant change of the length L_{c} of the superconducting domains along the c-axis and λ_{ab}^{2} is deduced, yielding the relative isotope shift ΔL_{c}/L_{c}\approx Δλ_{ab}^{2}/λ_{ab}^{2}\approx -0.14 for x=0, 0.2 and 0.3. This uncovers the existence and relevance of the coupling between the superfluid, lattice distortions and anharmonic phonons which involve the oxygen lattice degrees of freedom.
description: 4 pages, 3 figures
Transportation in Marketing Molasses for Feed
Creators: name: Poats, Frederick J.
name: Poats, Frederick J.
Publisher: name: Unknown
Year: 1957
Subjects: subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business

description: Excerpts from the report: Transportation costs are the largest item of marketing costs for molasses and the major factor affecting the price to consumers and the returns to producers. Previous studies of molasses marketing problems have shown that the ratio of transportation and marketing costs to the consumer's purchase price is very high. The ability of producers to dispose of molasses in distant markets in competition with other feedstuffs depends largely upon the costs and efficiency of transportation and marketing. This report is devoted to the transportation of molasses from the producer to the user, with particular attention to the methods, practices, and costs of the three types of bulk transport--trucks, railroads, and waterborne carriers--between seaport terminal or mainland producer and consumer.
Isotropic-nematic phase transition in suspensions of filamentous virus and the neutral polymer Dextran
Creators: name: Dogic, Zvonimir
name: Purdy, Kirstin
name: Grelet, Eric
name: Adams, Marie
name: Fraden, Seth
Publisher: name: arXiv
Year: 2004
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present an experimental study of the isotropic-nematic phase transition in an aqueous mixture of charged semi-flexible rods (fd virus) and neutral polymer (Dextran). A complete phase diagram is measured as a function of ionic strength and polymer molecular weight. At high ionic strength we find that adding polymer widens the isotropic-nematic coexistence region with polymers preferentially partitioning into the isotropic phase, while at low ionic strength the added polymer has no effect on the phase transition. The nematic order parameter is determined from birefringence measurements and is found to be independent of polymer concentration (or equivalently the strength of attraction). The experimental results are compared with the existing theoretical predictions for the isotropic-nematic transition in rods with attractive interactions.
description: 8 Figures. To be published in Phys. Rev. E. For more information see http://www.elsie.brandeis.edu
Suggested Methods for Checking Temperatures of Fresh and Frozen Food Shipments
Creators: name: Guilfoy, Robert F.
name: Johnson, Harold D.
name: Guilfoy, Robert F.
name: Johnson, Harold D.
Publisher: name: Unknown
Year: 1956
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Marketing
subject: FOS: Economics and business
subject: Research Methods/ Statistical Methods

description: Excerpt from the report: Shippers, carriers, and receivers have expressed a growing interest in the maintenance of proper temperatures for the protection of fresh and frozen food products in transit. One way to make sure that products are at desired temperatures is to check the products before loading them into the car or truck and again upon arrival at destination. This checking can be done by taking the product temperatures in sample packages (boxes, crates, cartons, etc.).
Institutional Market Potential for Oilseed Proteins
Creators: name: Brine, Constance L.
name: Brine, Constance L.
Publisher: name: Unknown
Year: 1956
Subjects: subject: Crop Production/Industries
subject: Food Consumption/Nutrition/Food Safety
subject: Marketing
subject: FOS: Economics and business
subject: Research Methods/ Statistical Methods

description: Excerpts from the report: Between 1930 and 1956, the production of soybeans in the United States rose from about 14 million to over 400 million bushels a year. With the production area in the Middle West expanding both north and south, and with the substitution of soybeans for crops under acreage control, further increases can be expected. In anticipation of such increases, a study was undertaken to try to locate new markets for soybean products . The heretofore unexplored market provided by residential-type institutions appeared to have potentials for the use of protein-seed meals in food, as the population of these institutions had been rising steadily. To appraise the need for and the practical value of the use of soybean products, a study was made of the quantity, cost, and nutritive content of food used during a 28-day period in the winter and a similar period in the summer of 1952 in 16 public and private institutions in the northeastern and southeastern parts of the United States . Among these were homes for the aged, children's homes, and mental and penal institutions. Similar data were collected on a "pilot" basis in 3 general hospitals in the Northeast during the winter of 1953.
Formation of normal surface plasmon modes in small sodium nanoparticles
Creators: name: Matsko, N. L.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Formation of surface plasmon modes in sodium nanoclusters containing 20-300 atoms was studied using the GW method. It is shown that in the small Na nanoparticles up to 2 nm in size, the loss function $Im[ε^{-1}]$ is dominated by a single peak corresponding to localized surface plasmon resonance (LSPR). For particles of 2 nm and more, a resonance corresponding to surface plasmon polariton (SPP) oscillations begins to form, as well as a resonance corresponding to volume plasmon (VP) excitations. Considering the above, the linear size of a particle in the range of 0.7-3.7 nm can be estimated as the lower limit for metal nanodevices operating with SPP. On the example of spherical nanoparticles consisting of a silicon core coated with sodium atoms, it is shown that the LSPR mode is selectively suppressed while the SPP mode is not. Such composite structures can be considered as an example of nanoplasmonic devices with selectively tuned characteristics.
description: 13 pages, 4 figures
Experimental quantum polarimetry using heralded single photons
Creators: name: Yoon, Seung-Jin
name: Lee, Joong-Sung
name: Rockstuhl, Carsten
name: Lee, Changhyoup
name: Lee, Kwang-Geol
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We perform experimental quantum polarimetry using a heralded single photon to analyze the optical activity of linearly polarized light traversing a chiral medium. Three kinds of estimators are considered to estimate the concentrations of sucrose solutions from measuring the rotation angle of the linear polarization of the output photons. Through repetition of independent and identical measurements performed for each individual scheme and different concentration sucrose solutions, we compare the estimation uncertainty among the three schemes. The results are also compared to classical benchmarks for which a coherent state of light is taken into account. The quantum enhancement in the estimation uncertainty is evaluated and the impact of experimental and technical imperfections is discussed. In this work, we lay out a route for future applications relying on quantum polarimetry.
On the dimension of divergence sets of Schrödinger equation with complex time
Creators: name: Yuan, Jiye
name: Zhao, Tengfei
name: Zheng, Jiqiang
Publisher: name: arXiv
Year: 2019
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 42B25, 35Q56,

description: This article studies the pointwise convergence for the fractional Schrödinger operator $P^{t}_{a,γ}$ with complex time in one spatial dimension. Through establishing $L^2$-maximal estimates for initial datum in $H^{s}(\mathbb{R})$, we see that the solution converges to the initial data almost everywhere with $s>\frac14 a(1-\frac1γ)_+$ when $0\frac{1}{2}(1-\frac{1}γ)_{+}$ when $a=1$. By constructing counterexamples, we show that this result is almost sharp up to the endpoint. These results extends the results of P. Sjölin, F. Soria and A. Baily. Second, we study the Hausdorff dimension of the set of the divergent points, by showing some $L^1$-maximal estimates with respect to general Borel measure. Our results reflect the interaction between dispersion effect and dissipation effect, arising from the fractional Schrödinger type operator $P^{t}_{a,γ}$ with the complex time.
description: 25 pages
Syndrome-Enabled Unsupervised Learning for Neural Network-Based Polar Decoder and Jointly Optimized Blind Equalizer
Creators: name: Teng, Chieh-Fang
name: Chen, Yen-Liang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Recently, the syndrome loss has been proposed to achieve "unsupervised learning" for neural network-based BCH/LDPC decoders. However, the design approach cannot be applied to polar codes directly and has not been evaluated under varying channels. In this work, we propose two modified syndrome losses to facilitate unsupervised learning in the receiver. Then, we first apply it to a neural network-based belief propagation (BP) polar decoder. With the aid of CRC-enabled syndrome loss, the BP decoder can even outperform conventional supervised learning methods in terms of block error rate. Secondly, we propose a jointly optimized syndrome-enabled blind equalizer, which can avoid the transmission of training sequences and achieve global optimum with 1.3 dB gain over non-blind minimum mean square error (MMSE) equalizer.
description: 12 pages, 13 figures, 3 tables. Published in IEEE Journal on Emerging and Selected Topics in Circuits and Systems
Fabrics and Fibers for Passenger Cars: Automobile Manufacturers' Views, 1955 Compared with 1950
Creators: name: Jacobs, Milton
name: Jacobs, Milton
Publisher: name: Unknown
Year: 1957
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: Research Methods/ Statistical Methods

description: Below are summarized some of the major shifts in consumption of materials, especially fabrics and fibers, used in passenger cars between 1950 and 1955 as well as key opinions and attitudes of automobile manufacturers relating to the future use of these materials.
A geometric relativistic dynamics under any conservative force
Creators: name: Friedman, Y.
name: Scarr, T.
name: Steiner, J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Riemann's principle "force equals geometry" provided the basis for Einstein's General Relativity - the geometric theory of gravitation. In this paper, we follow this principle to derive the dynamics for any static, conservative force. The geometry of spacetime of a moving object is described by a metric obtained from the potential of the force field acting on it. We introduce a generalization of Newton's First Law - the \emph{Generalized Principle of Inertia} stating that: \emph{An inanimate object moves inertially, that is, with constant velocity, in \emph{its own} spacetime whose geometry is determined by the forces affecting it}. Classical Newtonian dynamics is treated within this framework, using a properly defined \emph{Newtonian metric} with respect to an inertial lab frame. We reveal a physical deficiency of this metric (responsible for the inability of Newtonian dynamics to account for relativistic behavior), and remove it. The dynamics defined by the corrected Newtonian metric leads to a new \emph{Relativistic Newtonian Dynamics} for both massive objects and massless particles moving in any static, conservative force field, not necessarily gravitational. This dynamics reduces in the weak field, low velocity limit to classical Newtonian dynamics and also exactly reproduces the classical tests of General Relativity, as well as the post-Keplerian precession of binaries.
description: 17 pages
Women's Attitudes Toward Wool and Other Fibers
Creators: name: Hochstim, Esther S.
name: Hochstim, Esther S.
Publisher: name: Unknown
Year: 1957
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: Research Methods/ Statistical Methods

description: Excerpts from the report Introduction: The introduction in recent years of the new synthetic fibers--nylon, "Dacron," and "Orlon"-- into the clothing field poses many problems for producers and marketers of natural fibers. Faced with increasing competition, the natural fiber industry must evaluate the appeals to the public of competitive fibers and find means to make its products more salable. As part of the Department of Agriculture's program to further the consumption of farm products, the Market Surveys Section of the Market Development Branch conducted a nationwide survey of women's attitudes toward wool and other fibers in fall, winter, and spring suits and skirts, and in sweaters. Because young girls constitute an especially important market for sweaters, a separate study among 14 to 17 year old girls carried questioning their uses of and attitudes toward sweater fibers; and that information on is included in this report. Interviewing for the two surveys was done in September to December 1955
description: PART I---Suits, Skirts, Sweaters PART II--Home Sewing, Knitting, Needlework
Orbital-selective Dirac fermions and extremely flat bands in frustrated kagome-lattice metal CoSn
Creators: name: Liu, Zhonghao
name: Li, Man
name: Wang, Qi
name: Wang, Guangwei
name: Wen, Chenhaoping
name: Jiang, Kun
name: Lu, Xiangle
name: Yan, Shichao
name: Huang, Yaobo
name: Shen, Dawei
name: Yin, Jiaxin
name: Wang, Ziqiang
name: Yin, Zhiping
name: Lei, Hechang
name: Wang, Shancai
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Layered kagome-lattice 3d transition metals are emerging as an exciting platform to explore the frustrated lattice geometry and quantum topology. However, the typical kagome electronic bands, characterized by sets of the Dirac-like band capped by a phase-destructive flat band, have not been clearly observed, and their orbital physics are even less well investigated. Here, we present close-to-textbook kagome bands with orbital differentiation physics in CoSn, which can be well described by a minimal tight-binding model with single-orbital hopping in Co kagome lattice. The capping flat bands with bandwidth less than 0.2 eV run through the whole Brillouin zone, especially the bandwidth of the flat band of out-of-plane orbitals is less than 0.02 eV along G-M. The energy gap induced by spin-orbit interaction at the Dirac cone of out-of-plane orbitals is much smaller than that of in-plane orbitals, suggesting orbital-selective character of the Dirac fermions.
SEMANTIC, STRUCTURAL AND EXPRESSIVE-STYLISTIC CLASSIFICATION OF PHRASEOLOGICAL UNITS
Creators: name: Xamzayev, Akmal
Publisher: name: Zenodo
Year: 2024

description: The article researches the fact that phraseological units are considered in three directions: as part of the semantic, structured, expressive stylistic system, the basis of the formation of which are different linguistic processes. Phraseological expressions are only phrases with literal the value of the components. The phraseological expressions include numerous English proverbs and sayings that apply in the literal sense, do not have a figurative allegorical meaning The subject of the article is semantic and structural properties, phraseological units, with the meaning of human intelligence. Article also provides the study the concept of "phraseological unit" and its main characteristics, consider the existing classifications of phraseological units.
Fresh Fruit and Vegetable Prepackaging, Northeastern Region, Operating Season, 1954-55
Creators: name: Smith, Thomas B.
name: Browning, John W.
name: Smith, Thomas B.
name: Browning, John W.
Publisher: name: Unknown
Year: 1957
Subjects: subject: Crop Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Research and Development/Tech Change/Emerging Technologies

description: Excerpt from the report Introduction: The packaging of fresh fruits and vegetables in consumer units is expanding, although only about 20 percent of the fresh produce is now packaged before reaching the retail level. Approximately 56 billion pounds of fresh fruits and vegetables are marketed annually and about 11 billion pounds are packaged in unit containers. Shippers, packers, and distributors of fresh fruits and vegetables consequently need more information on the growth of the produce prepackaging industry. Potential packagers want to know what commodities are being prepackaged, what types and sizes of packages are used, what types of machinery and equipment are used, and what experimental methods are being tested. Firms already in the business also want such information to help them expand operations