cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Gradient spin echo enhanced proton precession magnetometer: a novel system for field gradient measurement
Creators: name: Sarreshtedari, Farrokh
name: Mahboubian, Faeze
name: Sardari, Mohammad Hadi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Gradient spin echo enhanced proton precession magnetometer is a novel system which can measure the first order gradient of the background field in addition to the magnetic field. The system includes a conventional proton precession magnetometer equipped with Maxwell coil pair and electronics which allow to conduct the gradient spin echo experiment. In gradient spin echo process, based on the background gradient field, the switching gradient field and the switching reversal time, the spin echo signal forms at a theoretically predictable time. The important advantage of this approach is that in contrast to conventional proton gradiometers which measure the magnetic field difference between two different points, gradient spin echo enhanced proton magnetometer measures the field gradient at the same position where the magnetic field is being measured. It is shown that by using this system the background gradient field is measured with an average root mean square error of 0.02μT/m for gradient fields in the range of -0.25μT/m to +0.25μT/m. By optimization of this system, the mentioned error could be significantly decreased and the instrument could be used for many different applications.
description: 6 pages, 7 figures
Breathing modes of repulsive polarons in Bose-Bose mixtures
Creators: name: Boudjemaa, Abdelaali
name: Guebli, Nadia
name: Sekmane, Mohammed
name: Khlifa-Karfa, Sofyan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We consider impurity atoms embedded in a two-component Bose-Einstein condensate in a quasi-one dimensional regime. We study the effects of repulsive coupling between the impurities and Bose species on the equilibrium of the system for both miscible and immiscible mixtures by numerically solving the underlying coupled Gross-Pitaevskii equations. Our results reveal that the presence of impurities may lead to a miscible-immiscible phase transition due to the interaction of the impurities and the two condensates. Within the realm of the Bogoliubov-de Gennes equations we calculate the quantum fluctuations due to the different types of interactions. The breathing modes and the time evolution of harmonically trapped impurities in both homogeneous and inhomogeneous binary condensates are deeply discussed in the miscible case using variational and numerical means. We show in particular that the self-trapping, the miscibility and the inhomogeneity of the trapped Bose mixture may strongly modify the low-lying excitations and the dynamical properties of impurities. The presence of phonons in the homogeneous Bose mixture gives rise to the damping of breathing oscillations of impurities width.
Developments in perturbative QCD
Creators: name: Salam, Gavin P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A brief review of key recent developments and ongoing projects in perturbative QCD theory, with emphasis on conceptual advances that have the potential for impact on LHC studies. Topics covered include: twistors and new recursive calculational techniques; automation of one-loop predictions; developments concerning NNLO calculations; the status of Monte Carlo event generators and progress in matching to fixed order; analytical resummation including the push to NNLL, automation and gap between jets processes; and progress in the understanding of saturation at small x.
description: 14 pages; invited talk at XXII International Symposium on Lepton-Photon Interactions at High Energy, Uppsala, July 2005; v2 includes extra references
Weighted bootstrap consistency for matching estimators: The role of bias-correction
Creators: name: Walsh, Christopher
name: Jentsch, Carsten
name: Hossain, Shaikh Tanvir
Publisher: name: Technische Universität Dortmund
Year: 2021
Subjects: subject: ATE
subject: bias-correction
subject: wild bootstrap
subject: weighted bootstrap
subject: bootstrap consistency
subject: matching estimator
subject: 310
subject: 330
subject: 620

description: We show that the purpose of consistent bias-correction for matching estimators of treatment effects is two-fold. Firstly, it is known to improve point estimation to get rid of asymptotically non-negligible bias terms. Secondly, point estimates, it will also distort inference leading e.g. to invalid confidence intervals. In simulations, we show that the choice of the bias-correction estimator that practitioners still have to make, can severely affect the weighted bootstrap’s performance when estimating the asymptotic variance in finite samples. In particular, simple rules such as estimating the bias based on linear regressions in the treatment arms can lead to very poor weighted bootstrap based variance estimates.
description: Discussion Paper / SFB823;8/2021
Spectral functions in the $ϕ^4$-theory from the spectral DSE
Creators: name: Horak, Jan
name: Pawlowski, Jan M.
name: Wink, Nicolas
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We develop a non-perturbative functional framework for computing real-time correlation functions in strongly correlated systems. The framework is based on the spectral representation of correlation functions and dimensional regularisation. Therefore, the non-perturbative spectral renormalisation setup here respects all symmetries of the theories at hand. In particular this includes space-time symmetries as well as internal symmetries such as chiral symmetry, and gauge symmetries. Spectral renormalisation can be applied within general functional approaches such as the functional renormalisation group, Dyson-Schwinger equations, and two- or $n$-particle irreducible approaches. As an application we compute the full, non-perturbative, spectral function of the scalar field in the $ϕ^4$-theory in $2+1$ dimensions from spectral Dyson-Schwinger equations. We also compute the $s$-channel spectral function of the full $ϕ^4$-vertex in this theory.
description: 22 pages, 15 figures
The Complex Star Formation History of NGC 1569
Creators: name: Angeretti, L.
name: Tosi, M.
name: Greggio, L.
name: Sabbi, E.
name: Aloisi, A.
name: Leitherer, Claus
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present new results on the star formation history of the dwarf irregular galaxy NGC 1569. The data were obtained with Hubble Space Telescope's NICMOS/NIC2 in the F110W (J) and F160W (H) near-infrared (NIR) filters and interpreted with the synthetic color-magnitude diagram method. The galaxy experienced a complex star formation (SF) activity. The best fit to the data is found by assuming three episodes of activity in the last 1-2 Gyr. The most recent and strong episode constrained by these NIR data started ~37 Myr ago and ended ~13 Myr ago, although we cannot exclude the possibility that up to three SF episodes occurred in this time interval. The average star-formation rate (SFR) of the episode is 3.2 Msun yr-1 kpc-2, in agreement with literature data. A previous episode produced stars between 150 Myr and 40 Myr ago, with a mean SFR about 2/3 lower than the mean SFR of the youngest episode. An older SF episode occurred about 1 Gyr ago. All these SFRs are 2-3 orders of magnitude higher than those derived for late-type dwarfs of the Local Group. In all cases an initial mass function similar to Salpeter's allows for a good reproduction of the data, but we cannot exclude flatter mass functions. These results have been obtained adopting a distance of 2.2 Mpc and a reddening E(B-V)=0.56. A larger distance would require younger episodes and higher SFRs. We have explored some possible scenarios using the astrated mass in the best fit model, in order to constrain the past star formation history. We cannot rule out a low rate in the past SF but we can safely conclude that the last 1-2 Gyr have been peculiar.
description: Accepted by AJ, 2005, vol 129, 14 pages, 9 figures
The gravitational field of the SdS space-time
Creators: name: Manjunatha, H. M.
name: Narasimhamurthy, S. K.
name: Nekouee, Z.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences
subject: 53A45, 53B50, 53C25, 83C15

description: The goal of this paper is to study SdS space-time and its gravitational field with consideration of the canonical form and invariants of the curvature tensor. The characteristic of $λ$-tensor identifies the type of gravitational field. Gaussian curvature quantities enunciated in terms of curvature invariants.
description: 11 pages, 6 figures
Fortleben byzantinischen Rechts bei Armeniern und Georgiern
Creators: name: Kaufhold, Hubert
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 93 (2009): Oriens christianus, Band 93
Effects of neutrino-driven kicks on the supernova explosion mechanism
Creators: name: Fryer, Chris L.
name: Kusenko, Alexander
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We show that neutrino-driven pulsar kicks can increase the energy of the supernova shock. The observed large velocities of pulsars are believed to originate in the supernova explosion, either from asymmetries in the ejecta or from an anisotropic emission of neutrinos (or other light particles) from the cooling neutron star. In this paper we assume the velocities are caused by anisotropic neutrino emission and study the effects of these neutrino-driven kicks on the supernova explosion. We find that if the collapsed star is marginally unable to produce an explosion, the neutrino-driven mechanisms can drive the convection to make a successful explosion. The resultant explosion is asymmetric, with the strongest ejecta motion roughly in the direction of the neutron star kick. This is in sharp contrast with the ejecta-driven mechanisms, which predict the motion of the ejecta in the opposite direction. This difference can be used to distinguish between the two mechanisms based on the observations of the supernova remnants.
description: 22 pages including 8 figures, submitted to ApJ, version with high resolution figures can be found at http://qso.lanl.gov/~clf
Gluonic contribution to the nucleon self-energy in an effective theory
Creators: name: Upadhyay, Alka
name: Singh, J. P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Gluonic contributions to the self-energy of a nucleon have been investigated in an effective theory. The couplings of the topological charge density to nucleons give rise to OZI violating nucleon interactions. The one-loop self-energy of a nucleon arising due to these interactions have been calculated using a heavy baryon chiral perturbation theory. The divergences have been regularized using form factors. The nontrivial structure of the QCD vacuum has also been taken into account.
description: 10 Pages, 2 figures
The relationship between the organismal and cellular stress responses in fish
Creators: name: Basu, Niladri
Publisher: name: University of British Columbia
Year: 2009

description: Stress in fish is ubiquitous in natural and anthropogenic environments, and has the potential to cause major environmental and economic losses. Due to this, there is a need to develop a broad range of tools in risk assessment that facilitate the objective detection and assessment of stressed states in fish. It is well known that the exposure of fish to stressful stimuli activates a highly integrated stress response system that encompasses multiple levels of biological organization. At the organismal level, stress hormones (e.g. Cortisol) are released into the circulatory system to mobilize energy stores, and at the cellular level, heat shock proteins (e.g. hsp70) have functions related to preserving the integrity of proteins. Given the similarities between these two levels of stress response (i.e. maintenance of homeostasis), the purpose of my thesis was to determine if the organismal (Cortisol) and cellular (hsp70) stress responses were functionally related. In order to characterize this relationship, I: (1) studied a temperate salmonid (rainbow trout, Oncorhynchus mykiss) and a tropical finfish (mossambique tilapia, Oreochromis mossambicus); (2) measured the stress responses in hepatic and gill tissues; (3) exogenously introduced Cortisol into fish via intra-peritoneal injections or dietary routes; (4) artificially raised levels of Cortisol for acute (24 h) and sub-chronic (28 d) periods; (5) applied different stressors, including heat stress (2 h, +12°C or 2 h, +14°C immediate change), stress hormones (Cortisol), and toxicants (β-napthoflavone; bnf) to fish; (6) characterized the stress responses at the organismal (i.e. Cortisol, glucose, and lactate) and cellular (i.e. hsp70 and glucocorticoid receptor) levels; and (7) applied novel laboratory techniques to describe the association between hsp70 and the glucocorticoid receptor. By studying the stress responses under a variety of experimental conditions, I gained a comprehensive understanding regarding the relationship between the organismal and cellular stress responses in fish. The major findings included: (1) high levels of Cortisol suppressed, or prevented, the heat stress-related increases of hsp70 in hepatic and gill tissues of rainbow trout and gill tissues of mossambique tilapia; (2) sub-chronically stressed fish (exposed to Cortisol or β-napthofiavone) could not mount an organismal or cellular stress response when challenged with a heat stress; and (3) heat stress and Cortisol exposure can promote the binding of hsp70 to the glucocorticoid receptor in fish. Collectively, these findings demonstrate that a functional relationship exists between the organismal and cellular stress responses in fish, and raises questions regarding the existence of a highly interrelated and complex stress response system that spans all levels of biological organization within the whole animal.
FIRST-based survey of Compact Steep Spectrum sources, III. MERLIN and VLBI observations of subarcsecond-scale objects
Creators: name: Marecki, Andrzej
name: Kunert-Bajraszewska, Magdalena
name: Spencer, Ralph E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: According to a generally accepted paradigm, small intrinsic sizes of Compact Steep Spectrum (CSS) radio sources are a direct consequence of their youth, but in later stages of their evolution they are believed to become large-scale sources. However, this notion was established mainly for strong CSS sources. In this series of papers we test this paradigm on 60 weaker objects selected from the VLA FIRST survey. They have 5-GHz flux densities in the range 150 < S_{5GHz} < 550 mJy and steep spectra in the range 0.365 \le ν\le 5 GHz. The present paper is focused on sources that fulfill the above criteria and have angular sizes in the range 0.2\arcsec - 1\arcsec. Observations of 19 such sources were obtained using MERLIN in "snapshot" mode at 5 GHz. They are presented along with 1.7-GHz VLBA and 5-GHz EVN follow-up snapshot observations made for the majority of them. For one of the sources in this subsample, 1123+340, a full-track 5-GHz EVN observation was also carried out. This study provides an important element to the standard theory of CSS sources, namely that in a number of them the activity of their host galaxies probably switched off quite recently and their further growth has been stopped because of that. In the case of 1123+340, the relic of a compact "dead source" is particularly well preserved by the presence of intracluster medium of the putative cluster of galaxies surrounding it. The observed overabundance of compact sources can readily be explained in the framework of the scenario of "premature" cessation of the activity of the host galaxy nucleus. It could also explain the relatively low radio flux densities of many such sources and, in a few cases, their peculiar, asymmetric morphologies. We propose a new interpretation of such asymmetries based on the light-travel time argument.
description: 37 pages, 22 figures, matches the version printed in Astronomy & Astrophysics
Structure and Trends of Rural Employment: Canada in the Context of OECD Countries
Creators: name: Cunningham, Ron
name: Bollman, Ray D.
name: Cunningham, Ron
name: Bollman, Ray D.
Publisher: name: Unknown
Year: 1996
Subjects: Community/Rural/Urban Development
Labor and Human Capital

description: In 1991, 33 percent of Canada's population lived in predominantly rural regions. Employment growth in rural regions averaged 1.3 percent per year over the 1980s, ranking fourth among OECD countries. In 1991, only 11 percent of the rural workforce in Canada were working in agriculture, forestry or fishing. Within rural regions, employment growth was highest in rural areas adjacent to metropolitan centres. Business services was the fastest growing sector in all types of regions, but rural regions received only a minor boost due to the relatively low share of their workforce in business services. On average, rural areas showed less growth - however, within rural areas, there were regions that showed more growth than urban regions. Rurality does not necessarily imply slow employment growth.
Excitation of dust acoustic shock waves in an inhomogeneous dusty plasma
Creators: name: Arora, Garima
name: Bandyopadhyay, P.
name: Hariprasad, M. G.
name: Sen, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: An experimental investigation of the propagation characteristics of shock waves in an inhomogeneous dusty plasma is carried out in the Dusty Plasma Experimental (DPEx) device. A homogeneous dusty plasma, made up of poly-dispersive kaolin particles, is initially formed in a DC glow discharge Argon plasma by maintaining a dynamic equilibrium of the pumping speed and the gas feeding rate. Later, an equilibrium density inhomogeneity in the dust fluid is created by introducing an imbalance in the original dynamic equilibrium. Non-linear wave structures are then excited in this inhomogeneous dusty plasma by a sudden compression in the dust fluid. These structures are identified as shock waves and their amplitude and width profiles are measured spatially. The amplitude of a shock structure is seen to increase whereas the width broadens as it propagates down a decreasing dust density profile. A modified-KdV-Burger equation is derived and used to provide a theoretical explanation of the results including the power law scaling of the changes in the amplitude and width as a function of the background density.
description: This manuscript contains 10 pages with 10 figures
The extent to which access to MEDLINE can satisfactorily answer queries raised by practising GPs
Creators: name: Greaves, Tracey
Publisher: name: Loughborough University
Year: 2021
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: The extent to which access to MEDLINE can satisfactorily answer queries raised by practising GPs
Fast estimation of aperture-mass statistics I: aperture mass variance and an application to the CFHTLenS data
Creators: name: Porth, Lucas
name: Smith, Robert E.
name: Simon, Patrick
name: Marian, Laura
name: Hilbert, Stefan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We explore an alternative method to the usual shear correlation function approach for the estimation of aperture mass statistics in weak lensing survey data. Our approach builds on the direct estimator method of Schneider (1998). In this paper, to test and validate the methodology, we focus on the aperture mass dispersion. After computing the signal and noise for a weighted set of measured ellipticites we show how the direct estimator can be made into a linear order algorithm that enables a fast and efficient computation. We then investigate the applicability of the direct estimator approach in the presence of a real survey mask with holes and chip gaps. For this we use a large ensemble of full ray-tracing mock simulations. By using various weighting schemes for combining information from different apertures we find that inverse variance weighting the individual aperture estimates with an aperture completeness greater than 70 per cent coverage yields an answer that is in close agreement with the standard correlation function approach. We then apply this approach to the CFHTLenS as pilot scheme and find that our method recovers to high accuracy the Kilbinger (2013) result for the variance of both the E and B mode signal, after we correct the catalogue for the shear bias in the lensfit algorithm for pairs closer than 9". We then explore the cosmological information content of the direct estimator using the Fisher information approach. We show that there is a only modest loss in cosmological information from the rejection of apertures that are of low completeness. This method unlocks the door to fast and efficient methods for recovering higher order aperture mass statistics in linear order operations.
description: 26 pages, 15 figures. Submitted to MNRAS, comments welcome. v2: updated MNRAS template
Formalism for Relative Gromov-Witten Invariants
Creators: name: Katz, Eric
Publisher: name: arXiv
Year: 2005
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14N35

description: We develop a formalism for relative Gromov-Witten invariants of Li that is analogous to the Symplectic Field Theory of Eliashberg, Givental, and Hofer. This formalism allows us to express natural degeneration formulae in terms of generating functions and re-derive the formulae of Caporaso-Harris, Ran, and Vakil. In addition, our framework gives a homology theory analogous to SFT Homology.
Model selection in the average of inconsistent data: an analysis of the measured Planck-constant values
Creators: name: Mana, Giovanni
name: Massa, Enrico
name: Predescu, Maria
Publisher: name: arXiv
Year: 2020
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: When the data do not conform to the hypothesis of a known sampling-variance, the fitting of a constant to a set of measured values is a long debated problem. Given the data, fitting would require to find what measurand value is the most trustworthy. Bayesian inference is here reviewed, to assign probabilities to the possible measurand values. Different hypothesis about the data variance are tested by Bayesian model comparison. Eventually, model selection is exemplified in deriving an estimate of the Planck constant.
description: 15 pages, 4 figures, 2 tables
Working Time: How Do Farmers Juggle With It and How Has It Impacted Their Family Total Income
Creators: name: Cloutier, Sylvain
name: Cloutier, Sylvain
Publisher: name: Unknown
Year: 2001
Subjects: Farm Management

description: Employment in agriculture has changed drastically over the last fifty years. While the share of self-employed farmers has remained relatively stable over that period, the contribution of paid workers and of unpaid family workers to agricultural employment has reversed. Fifty years ago, unpaid family workers contributed significantly to farm work while paid workers were not as common. Now, the share of paid workers is converging towards that of self-employed farmers while unpaid family workers have basically disappeared. The increase in paid work can also be observed at the individual level. Almost half of all farmers reported another professional activity, be it paid off-farm work or a nonagricultural business. Changes affecting farming can also be observed in the income composition of farming families. Net farm income now accounts for roughly one-fourth of the family's total income. Wages and salaries which have always contributed significantly to the farming family's income is now, and by far, the largest contributor.
Numerical Results for U(1) Gauge Theory on 2d and 4d Non-Commutative Spaces
Creators: name: Bietenholz, W.
name: Bigarini, A.
name: Hofheinz, F.
name: Nishimura, J.
name: Susaki, Y.
name: Volkholz, J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present non-perturbative results for U(1) gauge theory in spaces, which include a non-commutative plane. In contrast to the commutative space, such gauge theories involve a Yang-Mills term, and the Wilson loop is complex on the non-perturbative level. We first consider the 2d case: small Wilson loops follows an area law, whereas for large Wilson loops the complex phase rises linearly with the area. In four dimensions the behavior is qualitatively similar for loops in the non-commutative plane, whereas the loops in other planes follow closely the commutative pattern. In d=2 our results can be extrapolated safely to the continuum limit, and in d=4 we report on recent progress towards this goal.
description: 9 pages, 7 figures, talk presented at "Ahrenshoop 2004"
Computer Use and Internet Use by Members of Rural Households
Creators: name: Thompson-James, Margaret
name: Thompson-James, Margaret
Publisher: name: Unknown
Year: 1999
Subjects: Farm Management
Research and Development/Tech Change/Emerging Technologies

description: The share of rural and small town individuals with a computer at home increased from 14 percent in 1989 to 23 percent in 1994. The largest increase was for individuals with at least high school graduation and for individuals in households with total income above $40,000. In 1989, 12 percent of rural and small town residents used a computer at work. This increased to 17 percent in 1994. However, 40 percent of rural and small town individuals were impacted by the introduction of computers at work. Two-thirds noted that computers caused an increase in skill level needed to do their job. In 1997, at least one individual in 29 percent of rural households had used computer communications at least once (from any location). In 10 percent of rural households, one person uses computer communication in a typical month from home. General browsing and e-mail were the most common uses with electronic banking and shopping being much less common. Only 3 percent of rural households report using computer communications in a typical month for a self-employed business.
НАУЧНЫЕ И ПРАКТИЧЕСКИЕ АСПЕКТЫ ЛОГИСТИКИ ПРОДОВОЛЬСТВЕННОГО РЫНКА
Creators: name: Ялунина Екатерина Николаевна
Publisher: name: Московский экономический журнал
Year: 2021
Subjects: ЛОГИСТИКА
УПРАВЛЕНИЕ
РЕСУРСЫ
КОНКУРЕНТОСПОСОБНОСТЬ
ЭФФЕКТИВНОСТЬ
РЫНОК

description: Логистика как научная дефиниция о процессах, связанных с использованием материальных, трудовых, финансовых ресурсов, направленных на повышение эффективности системы управления рыночным субъектом. В условиях стагнации национальной экономики предприятия уделяют особое внимание выстраиванию логистических потоков с целью оптимизации расходов бизнес-процессов. В состав агропромышленного комплекса входят сельскохозяйственные предприятия, предприятия пищевой и перерабатывающей промышленности и предприятия, которые производят оборудование для функционирования агропромышленного комплекса. Соответственно, логистические процессы рассматривается как целостная система, в которой элементы подчинены смысловыми связями. В данной статье автор представляет видение научных и практических аспектовLogistics as a scientific definition of the processes associated with the use of material, labor, financial resources aimed at improving the efficiency of the management system of a market entity. In the conditions of stagnation of the national economy, enterprises pay special attention to building logistics flows in order to optimize the costs of business processes. The agro-industrial complex includes agricultural enterprises, enterprises of the food and processing industry and enterprises that produce equipment for the functioning of the agro-industrial complex. Accordingly, logistic processes are viewed as an integral system in which the elements are subordinated to semantic connections. In this article, the author presents a vision of scientific and practical aspects.Logistics as a scientific definition of the processes associated with the use of material, labor, financial resources aimed at improving the efficiency of the management system of a market entity. In the conditions of stagnation of the national economy, enterprises pay special attention to building logistics flows in order to optimize the costs of business processes. The agro-industrial complex includes agricultural enterprises, enterprises of the food and processing industry and enterprises that produce equipment for the functioning of the agro-industrial complex. Accordingly, logistic processes are viewed as an integral system in which the elements are subordinated to semantic connections. In this article, the author presents a vision of scientific and practical aspects.
Utilization of Document Imaging Technology By the 1996 Canadian Census of Agriculture
Creators: name: Jones, Mel
name: Green, Ivan
name: Jones, Mel
name: Green, Ivan
Publisher: name: Unknown
Year: 1998
Subjects: Research and Development/Tech Change/Emerging Technologies

description: Processing of the Canadian Census of Agriculture relies heavily upon access to its questionnaires. The documents are required within many stages of collection and processing to ensure delivery of quality products to agricultural clients. Historically, access to the physical documents has proven problematic in terms of timely delivery, concurrent access, management, tracking, storage and cost. As early as 1984, Census management recognized the potential of document imaging technology to improve data quality and timeliness. However, in the 80s it took little effort to recognize that the technology of the day was not sufficiently mature or affordable for the Census. In 1996, document imaging became a successful reality for the Canadian Census of Agriculture. This paper describes the experiences, the issues and the expectations of the many different players involved in the implementation.
Additional file 1 of Risk factors for poor health and performance in European broiler production systems
Creators: name: Limbergen, Tommy Van
name: Sarrazin, Steven
name: Chantziaras, Ilias
name: Dewulf, Jeroen
name: Ducatelle, Richard
name: Kyriazakis, Ilias
name: McMullin, Paul
name: Méndez, Jesús
name: Niemi, Jarkko K.
name: Sotiris Papasolomontos
name: Szeleszczuk, Piotr
name: Erum, Johan Van
name: Dominiek Maes
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 1. PROHEALTH WP1 specific questionnaire for BROILERS. The questionnaire contains a total of 67 questions, including both multiple choice and open-ended questions. The questions were classified into six categories, i.e. general information, housing, feed and water supply, treatments and diseases, broiler details and management.
Hobby Farming - For Pleasure or Profit?
Creators: name: Boyd, Stephen
name: Boyd, Stephen
Publisher: name: Unknown
Year: 1998
Subjects: Farm Management

description: Hobby farms have represented a significant share of census-farms for many decades. Most operators of hobby farms treat the farm as a "hobby" -- there is no intention of making money. However, some hobby farms are profitable. The purpose of this paper is to identify the proportion of farms in Canada which are hobby farms and to identify the characteristics of the hobby farms that make money. According to 1991 Census of Agriculture data, there were 50,991 census-farms in which the main operator reported 190 days or more of off-farm work and whose farm did not employ any year round paid labour. Part-time or "hobby" farmers are an integral part of the agriculture population. Among the hobby farmers in Canada 40% are reporting positive net cash farm income. Only 9% of these hobby farmers are reporting net cash farm income of greater than $10,000. Ontario and BC's farm population consists of the highest proportion of hobby farms (18% and 16% respectively). Hobby farming is not a new phenomenon in Canada and hobby farmers do not appear to be a dying group. It is obvious that there is much more to this pursuit than making a profit.
Can oscillating scalar fields decay into particles with a large thermal mass?
Creators: name: Yokoyama, Jun'ichi
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate the dissipation rate of a coherently oscillating scalar field in a thermal environment using nonequilibrium quantum field theory and apply it to the reheating stage after cosmic inflation. It is shown that the rate is nonvanishing even when particles coupled to the oscillating inflaton field have a larger thermal mass than it, and therefore the cosmic temperature can be much higher than inflaton's mass even in the absence of preheating. Its cosmological implications are also discussed.
description: 6 pages
The Futures of English: Introduction from the UK
Creators: name: Gagnier, Regenia
Publisher: name: Humanities Commons
Year: 2023
Subjects: subject: English language
subject: English literature
subject: Comparative literature
subject: Literature
subject: Cosmopolitanism
subject: Culture
subject: Decolonization in literature
subject: Transnationalism
subject: Postcolonialism
subject: Information technology

description: Will students raised on social media still read English literature? • What is the role of English/American literature in the PRC, India,  Australasia, the USA? • What is the role of English language in relation to other global  and local languages? • What is the role of decolonising efforts? • How do our respective state apparatuses affect language and  literature teaching? Part I ‘International Perspectives on English Language and  Literature’ summarises the global spread of English since  the eighteenth century and outlines the concerns of the  special issue: the global futures of English language and  literature in information society in Africa, Australia, India,  the PRC, Europe and the UK, and the USA; the role of decolonising efforts; and the role of our respective state apparatuses in higher education policy. Part II, ‘English Studies  in Britain Today’, discusses the findings of the recent (June  2023) British Academy report English Studies Provision in UK  Higher Education, including the decline in literary studies  among students and the rise of Creative Writing in part in  response to political-economic rhetoric. Part III, ‘Global and  World Englishes’, returns to global and transnational practices beyond Britain and Europe to argue for more inclusive,  decolonising practices around world literatures. We might  take the lived histories of global and world Englishes to transcend both romantic revolutionary and far-right exclusionary  nationalisms in literary and language studies in favour of  more cosmopolitan, multilingual, and convivial approaches.
The time-dependent mass of cosmological perturbations in loop quantum cosmology: Dapor-Liegener regularization
Creators: name: García-Quismondo, Alejandro
name: Marugán, Guillermo A. Mena
name: Pérez, Gabriel Sánchez
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this work, we compute the time-dependent masses that govern the dynamics of scalar and tensor perturbations propagating on an effective flat, homogeneous, and isotropic background within the framework of loop quantum cosmology, regularized according to the procedure put forward by Dapor and Liegener. To do so, we follow the two main approaches that, in the field of loop quantum cosmology, lead to hyperbolic equations for the perturbations in the ultraviolet sector: the hybrid and dressed metric formalisms. This allows us to compare the masses resulting from both proposals and analyze their positivity in regimes of physical interest: the big bounce and the contracting de Sitter phase in the asymptotic past that is a defining feature of the model under consideration.
description: 25 pages, 5 figures
RRSP Contributions by Canadian Farm Producers in 1994
Creators: name: Morin, Marco
name: Morin, Marco
Publisher: name: Unknown
Year: 1999
Subjects: Agricultural and Food Policy

description: Registered retirement savings plans (RRSPs) are gaining in popularity as tools for building a retirement fund. How taxfilers use these plans, therefore, is an interesting area for investigation. This study focusses on a specific group of taxfilers, namely, farm producers. It describes RRSP contribution habits by farm producers from two points of view. First, it compares farmers with other groups of workers. Second, it takes a closer look at the specific situation of farm producers by exploring a number of characteristics specific to this group. The main results indicate that farm producers are among those who use RRSPs least, and who contribute the smallest amounts to RRSPs. The data also indicate, however, that farm producers who do contribute to RRSPs take full advantage of the opportunities provided by this tool. Like other workers, Canadian farm producers are most likely to contribute to RRPS when their incomes are higher and as they approach retirement age. The farm producer's province is another variable (albeit less important than the first two) that explains RRSP contribution habits. When full-time and part-time farm producers are examined separately, part-time producers are found to contribute to RRSPs more frequently and in larger amounts than their full-time colleagues. Full-time farm producers use the deduction limit as often as their part-time colleagues, however, and even more when only contributors are examined. Finally, the type of farm enterprise and the value of total sales are two factors that influence RRSP participation by Canadian farm producers.
Star formation and stellar populations in the Wolf-Rayet(?) luminous compact blue galaxy IRAS 08339+6517
Creators: name: Lopez-Sanchez, A. R.
name: Esteban, C.
name: Garcia-Rojas, J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: IRAS 08339+6517 is a luminous infrared and Ly$α$-emitting starburst galaxy that possesses a dwarf companion object at a projected distance of 56 kpc. An \ion{H}{i} tidal tail has recently been detected between both galaxies, suggesting that about 70% of the neutral gas has been ejected from them.We present deep broad-band optical images, together with narrow band H$α$ CCD images, and optical intermediate-resolution spectroscopy of both galaxies. The images reveal interaction features between both systems and strong H$α$ emission in the inner part of IRAS 08339+6517. The chemical composition of the ionized gas of the galaxies is rather similar. The analysis of their kinematics also indicates interaction features and reveals an object that could be a candidate tidal dwarf galaxy or a remnant of an earlier merger. Our data suggest that the \ion{H}{i} tail has been mainly formed from material stripped from the main galaxy. We find weak spectral features that could be attributed to the presence of Wolf--Rayet stars in this starburst galaxy and estimate an age of the most recent burst of around 4 -- 6 Myr. A more evolved underlying stellar population, with a minimal age between 100 -- 200 Myr, is also detected and fits an exponential intensity profile. A model which combines 85% young and 15% old populations can explain both the spectral energy distribution and the \ion{H}{i} Balmer and \ion{He}{i} absorption lines presented in our spectrum. The star formation rate of the galaxy is consistently derived using several calibrations, giving a value of $\sim$9.5 \Mo yr$^{-1}$. IRAS 08339+6517 does satisfy the criteria of a luminous compact blue galaxy, rare objects in the local universe but common at high redshifts, being a very interesting target for detailed studies of galaxy evolution and formation.
description: 23 pages, 8 tables, 18 figures. Accepted for publication in Astronomy & Astrophysics
3D Computational Cannula Fluorescence Microscopy enabled by Artificial Neural Networks
Creators: name: Guo, Ruipeng
name: Pan, Zhimeng
name: Taibi, Andrew
name: Shepherd, Jason
name: Menon, Rajesh
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: Optics (physics.optics)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Physical sciences

description: Computational Cannula Microscopy (CCM) is a high-resolution widefield fluorescence imaging approach deep inside tissue, which is minimally invasive. Rather than using conventional lenses, a surgical cannula acts as a lightpipe for both excitation and fluorescence emission, where computational methods are used for image visualization. Here, we enhance CCM with artificial neural networks to enable 3D imaging of cultured neurons and fluorescent beads, the latter inside a volumetric phantom. We experimentally demonstrate transverse resolution of ~6um, field of view ~200um and axial sectioning of ~50um for depths down to ~700um, all achieved with computation time of ~3ms/frame on a laptop computer.
Тумор инфилтриращи лимфоцити (ТИЛИ) и отговор към лечение с платина при тройно негативен рак на млечната жлеза (ТНРМЖ).
Creators: name: Jeliazko Arabadjiev
Publisher: name: figshare
Year: 2020
Subjects: subject: 111205 Chemotherapy
subject: FOS: Clinical medicine
subject: 111204 Cancer Therapy (excl. Chemotherapy and Radiation Therapy)
subject: 111203 Cancer Genetics
subject: 111202 Cancer Diagnosis
subject: 111201 Cancer Cell Biology
subject: Health Care
subject: 111299 Oncology and Carcinogenesis not elsewhere classified

description: Ролята на лимфоцитната инфилтрация в перитуморната строма за прогнозата и ефекта от лечението с платина-съдържаща химиотерапия при тройно-негативният рак на млечната жлеза (ТНРМЖ).
Correlation functions in mixtures with energetically favoured nearest-neighbours of different kind: a size-asymmetric case
Creators: name: Patsahan, O.
name: Meyra, A.
name: Ciach, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Binary mixtures of hard-spheres with different diameters and square-well attraction between different particles are studied by theory and Monte Carlo simulations. In our mesoscopic theory, local fluctuations of the volume fraction of the two components are taken into account. Semi-quantitative agreement between the simulation and theoretical results is obtained, except from very small distances. The correlation functions exhibit exponentially damped oscillations, with the period determined by the interaction potential, and both the amplitude and the correlation length increasing significantly with increasing diameter ratio. Increasing size asymmetry leads also to decreasing fluctuations of the number of the smaller particles in the attractive shell of the bigger ones. For small size asymmetry, the strongest correlations occur for comparable volume fraction of the two components. When the size ratio increases, the maximum of the structure factor moves to a larger volume fraction of the bigger particles, and for the size ratio as large as 4, the maximum goes beyond the accessible range of volume fractions. Our results show that when the neighbourhood of different particles is energetically favoured, the particles are much more uniformly distributed than in the random distribution even at relatively high temperature, especially for large size asymmetry.
description: 28 pages, 20 figures
Digestion, ruminal pH, salivation, and feeding behavior of lactating dairy cows fed a diet supplemented with fibrolytic enzymes
Creators: name: Bowman, Gavin Randy
Publisher: name: University of British Columbia
Year: 2009

description: The objectives were to determine the effects of supplementing different components of the diet with enzymes on dry matter intake, ruminal fermentation, total tract digestion, milk production, and effective fiber. Eight multiparous and four primiparous lactating Holstein cows were used in a replicated 4 x 4 Latin square design to investigate the effects of supplementing a diet with a fibrolytic enzyme product containing mainly xylartase and cellulase activities. A total mixed ration (TMR), consisting of rolled barley, barley silage and alfalfa haylage (forage to concentrate ratio of 55:45, dry matter (DM) basis) differed in enzyme application: 1) no enzyme, 2) enzyme applied to concentrate (45% of TMR), 3) enzyme applied to supplement (4% of TMR), and 4) enzyme applied to premix (0.2% of TMR). Application rate was constant for enzyme treatments at lg/head/day. Digestibility of DM measured using multiparous cows increased by 12% compared to the control when enzyme was added to the concentrate. Enzyme treatments that were applied to a smaller component of the TMR did not increase digestibility compared to the control. There were no significant effects of enzyme supplementation on milk production and composition. However, cows fed concentrate supplemented with enzyme produced significantly more milk than cows receiving the enzyme applied to the premix. Enzyme supplementation did not alter daily time spent eating or ruminating, indicating that this fibrolytic enzyme product does not alter the physical structure of the feed. However, when enzymes were added to the ration daily saliva production increased, which may have been a physiological response to the increase in fermentation products due to increased digestion. Enzyme supplementation did not change the mean ruminal pH or the amount of time pH was below 5.5, which was attributed to increased saliva production. The higher DM intake of multiparous cows was manifested in a faster eating rate, and resulted in more rumination time and greater saliva secretion. These results indicate that enzyme supplementation increases digestibility, and consequently improves the energy status of the cow. The component of the diet to which the enzyme is applied must be maximized to ensure a beneficial response.