cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Effect of Recent and Futuristic Changes in Cotton Production Technology on Direct and Fixed Costs Per Acre, Mississippi, 2004
Creators: name: Parvin, David W.
name: Martin, Steven W.
name: Parvin, David W.
name: Martin, Steven W.
Publisher: name: Unknown
Year: 2005
Subjects: Crop Production/Industries

description: The introduction of genetically modified seed technology dramatically changed cotton production practices. Production systems based on reduced tillage and BtRR varieties improved net returns by $47.35 per acre (53%) when compared to systems based on conventional tillage and non-transgenic varieties. The impact of other technology induced changes are reported.
MPEC 2024-A154 : 2024 AZ3
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 AZ3

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Particle Diffusivity and Free-Energy Profiles in Inhomogeneous Hydrogel Systems from Time-Resolved Penetration Profiles
Creators: name: Wolde-Kidan, Amanuel
name: Herrmann, Anna
name: Prause, Albert
name: Gradzielski, Michael
name: Haag, Rainer
name: Block, Stephan
name: Netz, Roland R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: A combined experimental/theoretical method to simultaneously determine diffusivity and free-energy profiles of particles that penetrate into inhomogeneous hydrogel systems is presented. As the only input, arbitrarily normalized concentration profiles from fluorescence intensity data of labeled tracer particles for different penetration times are needed. The method is applied to dextran molecules of varying size which penetrate into hydrogels of polyethylene-glycol (PEG) chains with different lengths that are covalently cross-linked by hyperbranched polyglycerol (hPG) hubs. Extracted dextran bulk diffusivities agree well with fluorescence correlation spectroscopy data obtained separately. Scaling laws for dextran diffusivities and free energies inside the hydrogel are identified as a function of the dextran mass. An elastic free-volume model that includes dextran as well as PEG linker flexibility describes the repulsive dextran-hydrogel interaction free energy, which is of steric origin, quantitatively and furthermore suggests that the hydrogel mesh-size distribution is rather broad and particle penetration is dominated by large hydrogel pores. Particle penetration into hydrogels is for steric particle-hydrogel interactions thus suggested to be governed by an elastic size-filtering mechanism that involves the tail of the hydrogel pore-size distribution.
Slack: instructivo
Creators: name: Vazano, Irene Noé
name: Black, Melissa
name: Nanton, María Cristina
name: Buede, Julián
name: López, Sabrina
name: Loto, Patricia
Publisher: name: Zenodo
Year: 2024
Subjects: Ciencia Abierta
Comunidad
Teaching
Latin America
Enseñanza
Clases virtuales
Pedagogía
Programación
Docencia
Cursos

description: Instructivo basado en la experiencia de MetaDocencia para las organizaciones que necesiten utilizar la plataforma Slack para cumplir sus objetivos.
Survival probability for exclusive central diffractive production of colorless states at the LHC
Creators: name: Gotsman, E.
name: Kowalski, H.
name: Levin, E.
name: Maor, U.
name: Prygarin, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper we discuss the survival probability for exclusive central diffractive production of a colorless small size system at the LHC. This process has a clear signature of two large rapidity gaps. Using the eikonal approach for the description of soft interactions, we predict the value of the survival probability to be about 5~6% for single channel models, while for a two channel model the survival probability is about 3%. The dependence of the survival probability factor (damping factor) on the transverse momenta of the recoiled protons is discussed, and we suggest it be measured at the Tevatron so as to minimize the possible ambiguity in the calculation of survival probability at the LHC.
description: 33 pages, 26 figures
Additional file 4 of Prevalence of hepatitis C in the adult population of Bulgaria: a pilot study
Creators: name: Sperle, Ida
name: Nielsen, Stine
name: Gassowski, Martyna
name: Naneva, Zlatina
name: Perchemlieva, Tanya
name: Amato-Gauci, Andrew
name: Heiden, Matthias An Der
name: Bremer, Viviane
name: Elitsa Golkocheva-Markova
name: Kristiyan Hristov
name: Kaneva, Elena
name: Yanita Simeonova
name: Tenev, Tencho
name: Varleva, Tonka
name: Duffell, Erika
name: Zimmermann, Ruth
Publisher: name: figshare
Year: 2020
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 4. S3: Additional tables and figures
Non-extremal Charged Rotating Black Holes in Seven-Dimensional Gauged Supergravity
Creators: name: Chong, Z. -W.
name: Cvetic, M.
name: Lu, H.
name: Pope, C. N.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We obtain the solution for non-extremal charged rotating black holes in seven-dimensional gauged supergravity, in the case where the three rotation parameters are set equal. There are two independent charges, corresponding to gauge fields in the U(1)xU(1) abelian subgroup of the SO(5) gauge group. A new feature in these solutions, not seen previously in lower-dimensional examples, is that the first-order "odd-dimensional self-duality" equation for the 4-form field strength plays a non-trivial role. We also study the BPS limit of our solutions where the black holes become supersymmetric. Our results are of significance for the AdS_7/CFT_6 correspondence in M-theory.
description: Latex, 12 pages, typos corrected and a reference added
Crop Contracts versus Spot Markets under the Marketing Assistance Loan Program: The Case of Peanuts
Creators: name: Nadolnyak, Denis A.
name: Revoredo-Giha, Cesar
name: Fletcher, Stanley M.
name: Nadolnyak, Denis A.
name: Revoredo-Giha, Cesar
name: Fletcher, Stanley M.
Publisher: name: Unknown
Year: 2005
Subjects: subject: Marketing
subject: FOS: Economics and business

description: We analyze two types of crop marketing contracts between agricultural producers and processors, delivery-at-harvest and an "option-to-purchase" that emerged in US peanut market after the 2002 Farm Act. This contract structure is interpreted as a marketing strategy trying to fill the gap left by the former quota system.
RAPTOR II: Polarized radiative transfer in curved spacetime
Creators: name: Bronzwaer, Thomas
name: Younsi, Ziri
name: Davelaar, Jordy
name: Falcke, Heino
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Accreting supermassive black holes are sources of polarized radiation that propagates through highly curved spacetime before reaching the observer. In order to help interpret observations of such polarized emission, accurate and efficient numerical schemes for polarized radiative transfer in curved spacetime are needed. In this manuscript we extend our publicly available radiative transfer code RAPTOR to include polarization. We provide a brief review of different codes and methods for covariant polarized radiative transfer available in the literature and existing codes, and present an efficient new scheme. For the spacetime-propagation aspect of the computation, we develop a compact, Lorentz-invariant representation of a polarized ray. For the plasma-propagation aspect of the computation, we perform a formal analysis of the stiffness of the polarized radiative-transfer equation with respect to our explicit integrator, and develop a hybrid integration scheme that switches to an implicit integrator in case of stiffness, in order to solve the equation with optimal speed and accuracy for all possible values of the local optical/Faraday thickness of the plasma. We perform a comprehensive code verification by solving a number of well-known test problems using RAPTOR and comparing its output to exact solutions. We also demonstrate convergence with existing polarized radiative-transfer codes in the context of complex astrophysical problems. RAPTOR is capable of performing polarized radiative transfer in arbitrary, highly curved spacetimes. This capability is crucial for interpreting polarized observations of accreting black holes, which can yield information about the magnetic-field configuration in such accretion flows. The efficient formalism implemented in RAPTOR is computationally light and conceptually simple. The code is publicly available.
Testing For Seasonal Cointegration and Error Correction: The U.S. Pecan Price-Inventory Relationship
Creators: name: Ibrahim, Mohammed
name: Florkowski, Wojciech J.
name: Ibrahim, Mohammed
name: Florkowski, Wojciech J.
Publisher: name: Unknown
Year: 2005
Subjects: Demand and Price Analysis

description: Using time series data we examine behavior of pecan prices and inventories at zero and seasonal frequencies, given results of seasonal cointegration tests. Both, seasonally unadjusted and adjusted quarterly data are used (1991-2002). Results suggest that, first, shelled and total pecan inventories and shelled pecan prices have common unit roots at both the non-seasonal and seasonal frequencies; second, there is no long run equilibrium between pecan prices and shelled or total inventories when unadjusted data are used. Finally, the speed of adjustments suggests pecan prices adjust to shocks in inventories and not the vice versa.
Euringer, Sebastian, Die Überlieferung der arabischen Übersetzung des DIatessarons
Creators: name: Baumstark, Anton
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 10 (1912): Oriens christianus, Band 10
An Examination of the Relationship Between Overall Efficiency and Farm Experience
Creators: name: Langemeier, Michael R.
name: Bradford, Kelly
name: Langemeier, Michael R.
name: Bradford, Kelly
Publisher: name: Unknown
Year: 2005
Subjects: Farm Management

description: This paper examines the relationship between overall efficiency and years of farm experience for a sample of Kansas farms. In addition to years of experience, overall efficiency is significantly related to farm size, percent of time devoted to farming, and percent acres owned.
The S2 Stream: the shreds of a primitive dwarf galaxy
Creators: name: Aguado, David S.
name: Myeong, G. C.
name: Belokurov, Vasily
name: Evans, N. W.
name: Koposov, Sergey E.
name: Prieto, Carlos Allende
name: Lanfranchi, Gustavo A.
name: Matteucci, Francesca
name: Shetrone, Matthew
name: Sbordone, Luca
name: Navarrete, Camila
name: Hernández, Jonay I. González
name: Chanamé, Julio
name: de Arriba, Luis Peralta
name: Yuan, Zhen
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The S2 stream is a kinematically cold stream that is plunging downwards through the Galactic disc. It may be part of a hotter and more diffuse structure called the Helmi stream. We present a multi-instrument chemical analysis of the stars in the metal-poor S2 stream using both high- and low-resolution spectroscopy, complemented with a re-analysis of the archival data to give a total sample of 62 S2 members. Our high-resolution program provides alpha-elements (C, Mg, Si, Ca and Ti), iron-peak elements (V, Cr, Mn, Fe, Ni), n-capture process elements (Sr, Ba) and other elements such as Li, Na, Al, and Sc for a subsample of S2 objects. We report coherent abundance patterns over a large metallicity spread (~1 dex) confirming that the S2 stream was produced by a disrupted dwarf galaxy. The combination of S2's $α$-elements displays a mildly decreasing trend with increasing metallicity which can be tentatively interpreted as a ``knee'' at [Fe/H]
description: Accepted for publitacion in MNRAS. 20 pages and 12 figures
Can we have a stringy origin behind $Ω_Λ(t)\propto Ω_m(t)$?
Creators: name: Biswas, Tirthabir
name: Mazumdar, Anupam
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Inspired by the current observations that the ratio of the abundance of dark energy $Ω_Λ$, and the matter density, $Ω_{m}$, is such that $Ω_{m}/Ω_Λ\sim 0.37$, we provide a string inspired phenomenological model where we explain this order one ratio, the smallness of the cosmological constant, and also the recent cosmic acceleration. We observe that any effective theory motivated by a higher dimensional physics provides radion/dilaton couplings to the standard model and the dark matter component with different strengths. Provided radion/dilaton is a dynamical field we show that $Ω_Λ(t)$ tracks $Ω_{m}(t)$ and dominates very recently.
description: 4 pages, discussions added on recent acceleration, typos corrected, references added
A program evaluation of the vocational testing Program at the UBC Women’s Resources Centre
Creators: name: Maclaughlin, Lola E. H.
Publisher: name: University of British Columbia
Year: 2009

description: A program evaluation was conducted of the Vocational Testing Program at the UBC Women's Resources Centre to examine the extent to which the goals of the Centre and its clients are being met. The tests administered as part of the Vocational Testing Program include the Wonderlic Personnel, the 16PF and the SCII. A 3-6 month follow-up survey was designed and mailed to 240 past participants of the program. Additionally, 2 past participants and 2 staff were interviewed about their experience and observations about the program. Both quantitative and qualitative methodologies were employed to analyze the results. The responses indicate an increase in such things as self knowledge, self belief, clarity about future career direction and expansion of options through participation in this program. Many clients had undertaken educational, occupational and personal actions as a result of the testing session. Compared to before testing, 35% reported having much more realistic expectations of career options. Respondents were split in their desire for more counselling at the end of the session. Some past participants reported wanting more job information and more focus on specific career options to be included in the program. Recommendations to the Centre for development of the program are offered.
Using Basis and Futures Prices as a Barometer in Deciding Whether to Store Grain or Not
Creators: name: Siaplay, Mounir
name: Anderson, Kim B.
name: Brorsen, B. Wade
name: Siaplay, Mounir
name: Anderson, Kim B.
name: Brorsen, B. Wade
Publisher: name: Unknown
Year: 2007
Subjects: subject: basis
subject: futures
subject: storage
subject: wheat

description: The purpose of this paper is to determine the importance of the strength and weakness of basis and futures prices as barometers for producers to use in deciding whether to store or not. Basis is the single most important market signal for wheat producers to use when deciding whether to store or sell their wheat at harvest. While some models indicated low futures prices were a signal to store, results were fragile and inconsistent.
Additional file 1 of Prevalence of hepatitis C in the adult population of Bulgaria: a pilot study
Creators: name: Sperle, Ida
name: Nielsen, Stine
name: Gassowski, Martyna
name: Naneva, Zlatina
name: Perchemlieva, Tanya
name: Amato-Gauci, Andrew
name: Heiden, Matthias An Der
name: Bremer, Viviane
name: Elitsa Golkocheva-Markova
name: Kristiyan Hristov
name: Kaneva, Elena
name: Yanita Simeonova
name: Tenev, Tencho
name: Varleva, Tonka
name: Duffell, Erika
name: Zimmermann, Ruth
Publisher: name: figshare
Year: 2020
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. S1a: First invitation letter
The dynamical M/L-profile and distance of the globular cluster M15
Creators: name: Bosch, Remco van den
name: de Zeeuw, Tim
name: Gebhardt, Karl
name: Noyola, Eva
name: van de Ven, Glenn
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We construct orbit-based axisymmetric dynamical models for the globular cluster M15 which fit groundbased line-of-sight velocities and Hubble Space Telescope line-of-sight velocities and proper motions. This allows us to constrain the variation of the mass-to-light ratio M/L as a function of radius in the cluster, and to measure the distance and inclination of the cluster. We obtain a best-fitting inclination of 60+/-15 degrees, a dynamical distance of 10.3+/-0.4 kpc and an M/L profile with a central peak. The inferred mass in the central 0.05 parsec is 3400 Msun, implying a central density of at least 7.4x10^6 Msun pc^-3. We cannot distinguish the nature of the central mass concentration. It could be an IMBH or it could be large number of compact objects, or it could be a combination. The central 4 arcsec of M15 appears to contain a rapidly spinning core, and we speculate on its origin.
description: 10 pages, 10 figures, 4 tables, emulateapj, Accepted for publication in ApJ, v2: fixed layout
Meat Slaughter and Processing Plants’ Traceability Levels Evidence From Iowa
Creators: name: Bulut, Harun
name: Lawrence, John D.
name: Bulut, Harun
name: Lawrence, John D.
Publisher: name: Unknown
Year: 2007
Subjects: subject: traceability
subject: food safety
subject: quality assurances
subject: animal ID
subject: RFID

description: In the United States (U.S.), there is no uniform traceability regulation across food sector. Food and Drug Administration (FDA) implemented one-step back and one-step forward traceability over the industries under its jurisdiction. U.S. Department of Agriculture (USDA), which oversees meat, poultry and egg production, requires some record keeping as part of food safety regulation. Particularly, a two-part-system has developed; live animal traceability and meat traceability with slaughter and processing plants in between. This paper studies the question of whether (and if so how) meat plants’ traceability levels vary with respect to the following factors; product specific (credence versus experience and search attributes, branded versus commodity meat, being exporter), organizational (spot market versus contracting), food safety related, and plant specific (a quality assurance system in place, number of sources, size, capital-labor ratio, etc.).
Iterated sumsets and Hilbert functions
Creators: name: Eliahou, Shalom
name: Mazumdar, Eshita
Publisher: name: arXiv
Year: 2020
Subjects: subject: Commutative Algebra (math.AC)
subject: Combinatorics (math.CO)
subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: Let A be a finite subset of an abelian group (G, +). Let h $\ge$ 2 be an integer. If |A| $\ge$ 2 and the cardinality |hA| of the h-fold iterated sumset hA = A + $\times$ $\times$ $\times$ + A is known, what can one say about |(h -- 1)A| and |(h + 1)A|? It is known that |(h -- 1)A| $\ge$ |hA| (h--1)/h , a consequence of Pl{ü}nnecke's inequality. Here we improve this bound with a new approach. Namely, we model the sequence |hA| h$\ge$0 with the Hilbert function of a standard graded algebra. We then apply Macaulay's 1927 theorem on the growth of Hilbert functions, and more specifically a recent condensed version of it. Our bound implies |(h -- 1)A| $\ge$ $θ$(x, h) |hA| (h--1)/h for some factor $θ$(x, h) > 1, where x is a real number closely linked to |hA|. Moreover, we show that $θ$(x, h) asymptotically tends to e $\approx$ 2.718 as |A| grows and h lies in a suitable range varying with |A|.
Estimates for the characteristic problem of the first-order reduction of the wave equation
Creators: name: Frittelli, Simonetta
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We calculate certain estimates for the solution of the characteristic problem of the wave equation reduced to first order, in terms of the free data prescribed on two transverse surfaces, one of which is characteristic. Estimates of such kind ensure the stability of the solutions under small variations of the data. Similar estimates exist for the derivatives of the solution as well.
description: 10 pages, 2 figures, to appear in J. Phys. A
Additional file 2 of Prevalence of hepatitis C in the adult population of Bulgaria: a pilot study
Creators: name: Sperle, Ida
name: Nielsen, Stine
name: Gassowski, Martyna
name: Naneva, Zlatina
name: Perchemlieva, Tanya
name: Amato-Gauci, Andrew
name: Heiden, Matthias An Der
name: Bremer, Viviane
name: Elitsa Golkocheva-Markova
name: Kristiyan Hristov
name: Kaneva, Elena
name: Yanita Simeonova
name: Tenev, Tencho
name: Varleva, Tonka
name: Duffell, Erika
name: Zimmermann, Ruth
Publisher: name: figshare
Year: 2020
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2. S1b: Second invitation letter
The chemistry of cosmic dust analogues from C, C$_2$, and C$_2$H$_2$ in C-rich circumstellar envelopes
Creators: name: Santoro, Gonzalo
name: Martínez, Lidia
name: Lauwaet, Koen
name: Accolla, Mario
name: Tajuelo-Castilla, Guillermo
name: Merino, Pablo
name: Sobrado, Jesús M.
name: Peláez, Ramón J.
name: Herrero, Víctor J.
name: Tanarro, Isabel
name: Mayoral, Álvaro
name: Agúndez, Marcelino
name: Sabbah, Hassan
name: Joblin, Christine
name: Cernicharo, José
name: Martín-Gago, José Ángel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Interstellar carbonaceous dust is mainly formed in the innermost regions of circumstellar envelopes around carbon-rich asymptotic giant branch (AGB) stars. In these highly chemically stratified regions, atomic and diatomic carbon, along with acetylene are the most abundant species after H$_2$ and CO. In a previous study, we addressed the chemistry of carbon (C and C$_2$) with H$_2$ showing that acetylene and aliphatic species form efficiently in the dust formation region of carbon-rich AGBs whereas aromatics do not. Still, acetylene is known to be a key ingredient in the formation of linear polyacetylenic chains, benzene and polycyclic aromatic hydrocarbons (PAHs), as shown by previous experiments. However, these experiments have not considered the chemistry of carbon (C and C$_2$) with C$_2$H$_2$. In this work, by employing a sufficient amount of acetylene, we investigate its gas-phase interaction with atomic and diatomic carbon. We show that the chemistry involved produces linear polyacetylenic chains, benzene and other PAHs, which are observed with high abundances in the early evolutionary phase of planetary nebulae. More importantly, we have found a non-negligible amount of pure and hydrogenated carbon clusters as well as aromatics with aliphatic substitutions, both being a direct consequence of the addition of atomic carbon. The incorporation of alkyl substituents into aromatics can be rationalized by a mechanism involving hydrogen abstraction followed by methyl addition. All the species detected in gas phase are incorporated into the nanometric sized dust analogues, which consist of a complex mixture of sp, sp$^2$ and sp$^3$ hydrocarbons with amorphous morphology.
Outlook vs. Futures: Three Decades of Evidence in Hog and Cattle Markets
Creators: name: Colino, Evelyn V.
name: Irwin, Scott H.
name: Colino, Evelyn V.
name: Irwin, Scott H.
Publisher: name: Unknown
Year: 2007
Subjects: subject: cattle
subject: encompassing
subject: forecast
subject: futures price
subject: hogs
subject: outlook
subject: RMSE

description: The purpose of this paper is to provide a comprehensive evaluation of the accuracy of outlook forecasts relative to futures prices in hog and cattle markets. Published forecasts from four prominent livestock outlook programs are available for analysis. Most of the series begin in the mid- to late-1970s and end in 2006. Root mean squared error (RMSE) comparisons indicate, with one exception, no meaningful differences in forecast accuracy between outlook forecasts and futures prices. The null hypothesis that futures prices encompass outlook forecasts is rejected in 9 of 11 cases for hogs and 7 of 8 cases for cattle, clearly indicating that outlook forecasts provide incremental information not contained in futures prices. The magnitude of decline in RMSE from combining outlook forecasts and futures prices is non-trivial in almost all cases. The reduction in RMSE for composite forecasts averages -6.3% and -9.0% in hogs and cattle, respectively. Overall, the results of this study provide compelling evidence of the substantial economic value of public outlook programs in cattle and hogs.
ASSESSMENT METHODS IN THE MODERN EDUCATIONAL PROCESS
Creators: name: Rahmanova, Sayyora
Publisher: name: Zenodo
Year: 2024

description: Assessment practices in education have undergone significant transformations in recent years, driven by technological advancements and evolving pedagogical approaches. This paper explores the diverse range of assessment methods employed in modern education, including traditional, performance-based, authentic, and technology-enhanced assessments. The benefits and challenges of each method are examined, with a particular focus on their impact on student learning and engagement. By providing a comprehensive overview of assessment methods, this paper aims to highlight the importance of using a variety of approaches to accurately measure student achievement, provide meaningful feedback, and inform instructional decisions.
Optimized network structure and routing metric in wireless multihop ad hoc communication
Creators: name: Krause, Wolfram
name: Scholz, Jan
name: Greiner, Martin
Publisher: name: arXiv
Year: 2005
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Inspired by the Statistical Physics of complex networks, wireless multihop ad hoc communication networks are considered in abstracted form. Since such engineered networks are able to modify their structure via topology control, we search for optimized network structures, which maximize the end-to-end throughput performance. A modified version of betweenness centrality is introduced and shown to be very relevant for the respective modeling. The calculated optimized network structures lead to a significant increase of the end-to-end throughput. The discussion of the resulting structural properties reveals that it will be almost impossible to construct these optimized topologies in a technologically efficient distributive manner. However, the modified betweenness centrality also allows to propose a new routing metric for the end-to-end communication traffic. This approach leads to an even larger increase of throughput capacity and is easily implementable in a technologically relevant manner.
description: 25 pages, v2: fixed one small typo in the 'authors' field
Effective Phononic Crystals for Non-Cartesian Elastic Wave Propagation
Creators: name: Arretche, Ignacio
name: Matlack, Kathryn H.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We introduce the concept of effective phononic crystals, which combine periodicity with varying isotropic material properties to force periodic coefficients in the elastic equations of motion in a non-Cartesian basis. Periodic coefficients allow for band structure calculation using Bloch theorem. Using the band structure, we demonstrate band gaps and topologically protected interface modes can be obtained in cylindrically propagating waves. Through effective phononic crystals, we show how behaviors of Cartesian phononic crystals can be realized in regions close to sources, where near field effects are non-negligible.
description: Main text: 9 pages, 3 figures Supplemental material: 6 pages, 3 figures
The Market Potential for Fats and Oils in Drying-Oil Uses: A Report by the Battelle Memorial Institute for the U.S. Department of Agriculture
Creators: name: Wilhelmy, Odin
name: Barr, Harry W.
name: Wilhelmy, Odin
name: Barr, Harry W.
Publisher: name: Unknown
Year: 1955
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: Research and Development/Tech Change/Emerging Technologies

description: Excerpts from the report Preface: This study of potential uses of fats and oils in drying-oil products had its inception early in 1953. It is well known that drying oils in recent years have encountered increased competition from synthetics. This raises a question as to the nature and strength of the competition from synthetic materials and of how drying oils can best meet it. The present study is aimed at finding out the following: (1) The factors affecting the use of various fats and oils in the drying-oil industry; (2) the difficulties that drying-oil users are encountering and the modifications desired to make the oils more useful in these industries; (3) the reasons why synthetic materials, nonoil paints, and tall oil, a byproduct of the alkaline paper pulp industry, have captured an increased share of the protective-coatings market; (4) the price and supply conditions under which one drying oil might be substituted for another; and (5) the present and probable future supply and price situation for materials used in the production of the synthetics. This information helps provide a basis for efforts to maintain or improve the competitive position of drying oils.
Vogel, H.J., Die altsyrischen Evangelien in ihrem Verhältnis zu Tatians Diatessaron untersucht
Creators: name: Heer, Joseph Michael
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 10 (1912): Oriens christianus, Band 10
Mapping Poincaré gauge cosmology to Horndeski theory for emergent dark energy
Creators: name: Barker, W. E. V.
name: Lasenby, A. N.
name: Hobson, M. P.
name: Handley, W. J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The ten-parameter, quadratic Poincaré gauge theory of gravity is a plausible alternative to general relativity. We show that the rich background cosmology of the gauge theory is described by a non-canonical bi-scalar-tensor theory in the Jordan frame: the `metrical analogue'. This provides a unified framework for future investigation by the broader community. For many parameter choices, the non-canonical term reduces to a Cuscuton field of the form $\smash{\sqrt{|X^{ϕϕ}|}}$. The Einstein-Cartan-Kibble-Sciama theory maps to a pure quadratic Cuscuton, whereas the teleparallel theory maps to the Einstein-Hilbert Lagrangian. We apply the metrical analogue to novel unitary and power-counting-renormalisable cases of Poincaré gauge theory. These theories support the concordance $Λ$CDM background cosmology up to an optional, effective dark radiation component, we explain this behaviour in terms of a stalled Cuscuton. We also obtain two dark energy solutions from one of these cases: accelerated expansion from a negative bare cosmological constant whose magnitude is screened, and emergent dark energy to replace vanishing bare cosmological constant in $Λ$CDM.
description: 11 pages, 2 figures. Results previously presented at DAMTP on 14/02/20. Added substantial introduction to Poincar\'e gauge theory and its perturbative renormalisability. Added various references. Incorporated supplemental material into main text (previously hosted on GitHub). Titular change. Results unaffected. Accepted for publication by Phys. Rev. D
Differences in Prices and Price Risk across Alternative Marketing Arrangements Used in the Fed Cattle Industry
Creators: name: Muth, Mary K.
name: Liu, Yanyan
name: Koontz, Stephen R.
name: Lawrence, John D.
name: Muth, Mary K.
name: Liu, Yanyan
name: Koontz, Stephen R.
name: Lawrence, John D.
Publisher: name: Unknown
Year: 2007
Subjects: subject: alternative marketing arrangements
subject: fed cattle
subject: prices
subject: price volatility
subject: price risk
subject: hedonic

description: Information on typical differences in prices and price risk (as measured by the variances of prices) across marketing arrangements aids fed cattle producers in making choices about methods to use for selling fed cattle to beef packers. This information is also useful for policy discussions on merits and drawbacks of alternative marketing arrangements. As part of the congressionally mandated Livestock and Meat Marketing Study, we investigated differences in prices and price risk for fed cattle cash market and alternative marketing arrangements. The modeling approach, which is similar to a hedonic model, controls for differences in cattle quality and delivery month and accounts for the within- and across-week correlation in prices. The analysis uses a recent data set for the October 2002 through March 2005 time period and includes sale lots of six or more cattle purchased by the 29 largest beef packing plants in the United States. The results indicate that marketing agreements, which are long-term ongoing agreements between fed cattle producers and packers that use formula pricing, offered the best trade-off between price level and price risk for both beef and dairy breed fed cattle. Prices were within $0.01 per pound carcass weight for both beef and dairy breed fed cattle sold under marketing agreements instead of through direct trade, but they were 18% to 20% less volatile. While auction barn prices were higher than all other methods, they were also the most volatile. Forward contracts had the lowest average price and the most volatile prices. The results also indicate that larger and higher quality lots were associated with higher average prices and lower variance of prices.
МОДА И УСТОЙЧИВОЕ РАЗВИТИЕ: КАК БРЕНДЫ И ДИЗАЙНЕРЫ ВНЕДРЯЮТ ЭКОЛОГИЧНЫЕ МАТЕРИАЛЫ И ПРОЦЕССЫ, ЧТОБЫ СНИЗИТЬ ВЛИЯНИЕ НА ОКРУЖАЮЩУЮ СРЕДУ
Creators: name: Мухамедова, Мадина
Publisher: name: Zenodo
Year: 2024

description: Мода всегда была важной частью нашей культуры, отражая стиль, индивидуальность и социальные нормы разных эпох. Однако с бурным развитием индустрии и ростом потребления стала очевидной и другая сторона моды — её негативное влияние на окружающую среду. Современная модная индустрия сталкивается с серьёзными экологическими вызовами, такими как массовое производство одежды, чрезмерное использование природных ресурсов и выбросы углекислого газа. Это привело к необходимости перемен, и все больше брендов и дизайнеров внедряют принципы устойчивого развития, чтобы сделать моду более экологичной.
Bypass to Turbulence in Hydrodynamic Accretion Disks: An Eigenvalue Approach
Creators: name: Mukhopadhyay, Banibrata
name: Afshordi, Niayesh
name: Narayan, Ramesh
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Cold accretion disks such as those in star-forming systems, quiescent cataclysmic variables, and some active galactic nuclei, are expected to have neutral gas which does not couple well to magnetic fields. The turbulent viscosity in such disks must be hydrodynamic in origin, not magnetohydrodynamic. We investigate the growth of hydrodynamic perturbations in a linear shear flow sandwiched between two parallel walls. The unperturbed flow is similar to plane Couette flow but with a Coriolis force included. Although there are no exponentially growing eigenmodes in this system, nevertheless, because of the non-normal nature of the eigenmodes, it is possible to have a large transient growth in the energy of perturbations. For a constant angular momentum disk, we find that the perturbation with maximum growth has a wave-vector in the vertical direction. The energy grows by more than a factor of 100 for a Reynolds number R=300 and more than a factor of 1000 for R=1000. Turbulence can be easily excited in such a disk, as found in previous numerical simulations. For a Keplerian disk, on the other hand, similar vertical perturbations grow by no more than a factor of 4, explaining why the same simulations did not find turbulence in this system. However, certain other two-dimensional perturbations with no vertical structure do exhibit modest growth. For the optimum two-dimensional perturbation, the energy grows by a factor of ~100 for R~10^4.5 and by a factor of 1000 for R~10^6. It is conceivable that these two-dimensional disturbances might lead to self-sustained turbulence. The Reynolds numbers of cold astrophysical disks are much larger even than 10^6, therefore, hydrodynamic turbulence may be possible in disks.
description: 39 pages including 9 figures; Final version to appear in The Astrophysical Journal
The Impact of Measurement Error on Estimates of the Price Reaction to USDA Crop Reports
Creators: name: Aulerich, Nicole M.
name: Irwin, Scott H.
name: Nelson, Carl H.
name: Aulerich, Nicole M.
name: Irwin, Scott H.
name: Nelson, Carl H.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agricultural Finance
subject: Agricultural and Food Policy
subject: Production Economics
subject: event study
subject: USDA Crop Production reports
subject: measurement error
subject: Identification Through Censoring

description: This paper investigates the impact of USDA crop production reports in corn and soybean futures markets. The analysis is based on all corn and soybean production reports released over 1970-2006. The empirical analysis compares the typical OLS event study approach to the new Identification by Censoring (ITC) technique. Corn and soybean production reports are analyzed both separately and together for impact in corn and soybean futures prices. ITC proves to be the more useful method because it avoids the pitfalls of errors in variables that cause downward bias in OLS coefficients. Price reaction coefficients estimated via ITC are one to four times larger than OLS estimates for a one price and one event analysis. In the two price, two event case, ITC estimates are one to six times larger. Market reaction to the unanticipated information in USDA forecasts is substantially larger than estimated in previous studies.
АВТОМАТИЗАЦИЯ ТЕХНОЛОГИЧЕСКИХ ПРОЦЕССОВ В НЕФТЕГАЗОВОМ ПРОИЗВОДСТВЕ
Creators: name: Кравцов Александр Сергеевич
name: Седельникова Валерия Александровна
name: Чижов Кирилл Алексеевич
name: Князева Алина Эдуардовна
name: Волков Игорь Владимирович
Publisher: name: Московский экономический журнал
Year: 2021
Subjects: АВТОМАТИЗАЦИЯ
ТЕХНОЛОГИЧЕСКИЕ ПРОЦЕССЫ
НЕФТЕГАЗОВОЕ ПРОИЗВОДСТВО

description: В статье рассмотрены особенности автоматизация технологических процессов в нефтегазовом производстве. Автор отмечает, что преимущества машинного обучения могут быть применены с точки зрения их способности обрабатывать большие данные и высокой скорости вычислений. Автоматизация может однозначно изменить многочисленные критические действия, которые ежедневно совершают администраторы и инженеры в нефтегазовом секторе. Будущие преимущества информации могут быть достигнуты, если соответствующие методы используются для реализации различных типов или структур данных и преобразования их в полезную информацию, которая способствует интеллектуальным суждениям. Многие такие решения могут быть применены для противодействия различным трудностям, встречающимся в нефтегазовой отрасли, и помогают в реализации прибыльных стратегий.The article discusses the features of automation of technological processes in oil and gas production. The author notes that the advantages of machine learning can be applied in terms of their ability to process big data and high computing speed. Automation can definitely change the numerous critical actions that administrators and engineers in the oil and gas sector perform on a daily basis. The future benefits of information can be achieved if appropriate methods are used to implement different types or structures of data and transform them into useful information that promotes intelligent judgments. Many such solutions can be applied to counteract various difficulties encountered in the oil and gas industry and help in the implementation of profitable strategies.The article discusses the features of automation of technological processes in oil and gas production. The author notes that the advantages of machine learning can be applied in terms of their ability to process big data and high computing speed. Automation can definitely change the numerous critical actions that administrators and engineers in the oil and gas sector perform on a daily basis. The future benefits of information can be achieved if appropriate methods are used to implement different types or structures of data and transform them into useful information that promotes intelligent judgments. Many such solutions can be applied to counteract various difficulties encountered in the oil and gas industry and help in the implementation of profitable strategies.
Spin glasses in the limit of an infinite number of spin components
Creators: name: Lee, L. W.
name: Dhar, A.
name: Young, A. P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider the spin glass model in which the number of spin components, m, is infinite. In the formulation of the problem appropriate for numerical calculations proposed by several authors, we show that the order parameter defined by the long-distance limit of the correlation functions is actually zero and there is only "quasi long range order" below the transition temperature. We also show that the spin glass transition temperature is zero in three dimensions.
description: 9 pages, 13 figures
World Trade in Dairy Products and the U.S. Role: An Illustrated Primer
Creators: name: Jesse, Edward V.
name: Jesse, Edward V.
Publisher: name: Unknown
Year: 2003
Subjects: subject: International Relations/Trade
subject: World Milk Production
subject: World Dairy Trade
subject: U.S. Dairy Trade Deficit

description: This paper provides a background for discussions about liberalizing international trade in dairy products under the current World Trade Organization (WTO) round of negotiations. About half of global 2002 dairy exports originated from New Zealand and Australia. These countries, which account for only a small share of world milk production and do not directly subsidize their exports, would gain substantially from liberalized trade. U.S. dairy imports exceeded exports by $800 million in 2002 and the gap is growing. Cheese is the largest import category and growing the fastest. New Zealand, Canada and the EU supply more than three-quarters of our dairy imports. Principal markets for U.S. exports, mostly cheese, nonfat dry milk, whey products and food preparations, are Mexico, Canada, and Pacific Rim countries.
What really bothers us about work interruptions? Investigating the characteristics of work interruptions and their effects on office workers
Creators: name: Rick, Vera B.
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 350505
subject: Occupational and workplace health and safety

description: Supplementary Material for Rick et al. (in print) "What really bothers us about work interruptions? Investigating the characteristics of work interruptions and their effects on office workers", published in Work & Stress.
Therapeutic enactment and addiction : investigating the process of recovery
Creators: name: Chan, James G.
Publisher: name: University of British Columbia
Year: 2009

description: While the literature is replete with studies that investigate Psychodrama as a method for working with individuals who suffer from the very serious problem of addiction, many are descriptive and do not employ a comprehensive theory of addiction to explain how or why this intervention might be effective. There is a dearth of research that systematically investigates what exactly changes in addicted clients as a result of psychodramatic intervention. The present study links a particular formulation of Psychodrama (called Therapeutic Enactment) to the Adaptive Model of addiction (Alexander, 1990). Clients in 28- day residential treatment participated in Therapeutic Enactment as part of their program of recovery. Therapeutic Enactment sessions were videotaped and then observed by the coinvestigator and participants. In-depth interviews were conducted after treatment intervention and again at three-month follow-up. Additional data sources included direct observations and documentation from client files. Qualitative data analysis revealed 16 reliable themes, the four most predominant being Self-Expression, Self-Awareness, Corrective Emotional Experience, and Change in Self-Schema. These findings lead to a better understanding of how Therapeutic Enactment facilitates the process of recovery from addiction. This study also supports previously identified therapeutic objectives and the use of Therapeutic Enactment in addiction treatment.
Real-Time Drone Detection and Tracking With Visible, Thermal and Acoustic Sensors
Creators: name: Svanstrom, Fredrik
name: Englund, Cristofer
name: Alonso-Fernandez, Fernando
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper explores the process of designing an automatic multi-sensor drone detection system. Besides the common video and audio sensors, the system also includes a thermal infrared camera, which is shown to be a feasible solution to the drone detection task. Even with slightly lower resolution, the performance is just as good as a camera in visible range. The detector performance as a function of the sensor-to-target distance is also investigated. In addition, using sensor fusion, the system is made more robust than the individual sensors, helping to reduce false detections. To counteract the lack of public datasets, a novel video dataset containing 650 annotated infrared and visible videos of drones, birds, airplanes and helicopters is also presented (https://github.com/DroneDetectionThesis/Drone-detection-dataset). The database is complemented with an audio dataset of the classes drones, helicopters and background noise.