cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
INVESTMENT IN SOIL CONSERVATION IN NORTHERN ETHIOPIA: THE ROLE OF LAND TENURE SECURITY AND PUBLIC PROGRAMS
Creators: name: Gebremedhin, Berhanu
name: Swinton, Scott M.
name: Gebremedhin, Berhanu
name: Swinton, Scott M.
Publisher: name: Unknown
Year: 2002
Subjects: Land Economics/Use

description: Soil erosion seriously threatens the future agricultural productivity of Ethiopia's highlands. In analyzing the determinants of soil conservation investments there, this study goes beyond the conventional physical factors to examine institutional, social capital and public program effects. The double hurdle statistical analysis from 250 farms in the Tigray region reveals different causal factors for soil conservation adoption versus intensity of use. The determinants of adoption of soil conservation measures vary sharply between stone terraces and soil bunds. Physical propensity toward erosion (e.g., slope, slope shape and soil texture) and land suitability for conservation helped determine conservation investments in all cases. But institutional and social determinants of investment differed importantly between bunds and terraces. Long-term investments in stone terraces were associated with secure land tenure, labor availability, proximity to the farmstead, and learning opportunities via the availability of food-for-work projects. By contrast, short-term investments in soil bunds were strongly linked to insecure land tenure and the absence of food-for-work projects. Farm beneficiaries of public soil conservation programs were less likely to invest privately in either type of conservation practice. Social capital, as measured by farmer perception of community pressure to curb soil erosion, did not contribute significantly to either kind of conservation investment. The intensity of stone terrace adoption (measured as meters of terrace per hectare) was determined by expected returns but not by capacity to invest. Higher intensity of stone terrace construction was favored by fertile-but-erodible silty soils in (rainy) highland settings that offered valuable yield benefits from soil conservation. Intensity of terracing was also greater in remote villages where limited off-farm employment opportunities made construction costs relatively low. Previous research has highlighted the need for public policy interventions to supplement private incentives to make soil conservation investments in erosion-prone mountain areas. Our results highlight the importance of the right kind of public interventions. Direct public involvement in constructing soil conservation structures on private lands appears to undermine incentives for private conservation investments. When done on public lands, however, public conservation activities may encourage private soil conservation by example. Secure land tenure rights clearly reinforce private incentives to make long-term investments in soil conservation.
Discussion of "Analysis of variance--why it is more important than ever" by A. Gelman
Creators: name: McCullagh, Peter
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: Discussion of ``Analysis of variance--why it is more important than ever'' by A. Gelman [math.ST/0504499]
description: Published at http://dx.doi.org/10.1214/009053604000001048 in the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Operator as a Service: Stateful Serverless Complex Event Processing
Creators: name: Luthra, Manisha
name: Hennig, Sebastian
name: Razavi, Kamran
name: Wang, Lin
name: Koldehofe, Boris
Publisher: name: arXiv
Year: 2020
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Complex Event Processing (CEP) is a powerful paradigm for scalable data management that is employed in many real-world scenarios such as detecting credit card fraud in banks. The so-called complex events are expressed using a specification language that is typically implemented and executed on a specific runtime system. While the tight coupling of these two components has been regarded as the key for supporting CEP at high performance, such dependencies pose several inherent challenges as follows. (1) Application development atop a CEP system requires extensive knowledge of how the runtime system operates, which is typically highly complex in nature. (2) The specification language dependence requires the need of domain experts and further restricts and steepens the learning curve for application developers. In this paper, we propose CEPLESS, a scalable data management system that decouples the specification from the runtime system by building on the principles of serverless computing. CEPLESS provides operator as a service and offers flexibility by enabling the development of CEP application in any specification language while abstracting away the complexity of the CEP runtime system. As part of CEPLESS, we designed and evaluated novel mechanisms for in-memory processing and batching that enables the stateful processing of CEP operators even under high rates of ingested events. Our evaluation demonstrates that CEPLESS can be easily integrated into existing CEP systems like Apache Flink while attaining similar throughput under a high scale of events (up to 100K events per second) and dynamic operator update in up to 238 ms.
description: 10 pages, Published in the Proceedings of the IEEE International Conference on Big Data
GREEN PAYMENTS AS FORESHADOWED BY EQIP
Creators: name: Batie, Sandra S.
name: Batie, Sandra S.
Publisher: name: Unknown
Year: 1999
Subjects: Environmental Economics and Policy

description: This paper addresses the potential of the Environmental Quality Incentives Program to become the first true green payment program, one which is not directly linked to farm income goals as all conservation programs have been in the past, even in contrast to the Conservation Reserve Program and the now obsolete Agricultural Conservation Program. EQIP is thus discussed as a new generation of conservation programs which are General Agreement on Tariffs and Trade-legal (no payments to farmers which may influence trade) and more targeted to actual agro-environmental problems than the traditional conservation programs. In the next sections, the paper raises two important questions: First, to what extent should green payments substitute for traditional commodity payments, as they are being phased out? If taking water quality problems into account, EQIP does not reach the geographic areas of the highest commodity program payments, although substitution was never intended and has inherent problems. The paper then looks at EQIP as a green payment program, discussing to what extent EQIP reflects the desired characteristics of a GATT-legal green payment program. Three such characteristics are discussed as hurdles for a successful EQIP implementation: a program has to be targeted, tailored and transparent. Additionally, rent-seeking by various private interests, lack of science-based data, agency and farmer inertia and the complexity of the program are all challenges which must be faced. The study concludes with a discussion of the future of green payments.
Combretum comosum var. comosum G. Don var. comosum
Creators: name: Jongkind, Carel C. H.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Myrtales
Combretaceae
Combretum
Combretum comosum
Combretum comosum g.don var. comosum

description: Combretum comosum G.Don var. comosum Edinburgh Philosophical Journal 11: 344 (1824); Keay, Flora of West Tropical Africa 1: 273 (1954); Jongkind, Flore du Gabon 35: 26 (1999). — Type: Sierra Leone, s.l., fl., fr., 1822, Don 24 (holo-, BM; iso-, BR, K, MO). DISTRIBUTION. — Sierra Leone to Ghana.
description: Published as part of Jongkind, Carel C. H., 2014, Notes on African Combretum Loefl. species (Combretaceae), pp. 315-327 in Adansonia (3) (3) 36 (2) on page 318, DOI: 10.5252/a2014n2a11, http://zenodo.org/record/4599512
COVID-19 policy analysis: labour structure dictates lockdown mobility behaviour
Creators: name: Heroy, Samuel
name: Loaiza, Isabella
name: Pentland, Alexander
name: O'Clery, Neave
Publisher: name: arXiv
Year: 2020
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Countries and cities around the world have resorted to unprecedented mobility restrictions to combat Covid-19 transmission. Here we exploit a natural experiment whereby Colombian cities implemented varied lockdown policies based on ID number and gender to analyse the impact of these policies on urban mobility. Using mobile phone data, we find that the restrictiveness of cities' mobility quotas (the share of residents allowed out daily according to policy advice) does not correlate with mobility reduction Instead, we find that larger, wealthier cities with more formalized and complex industrial structure experienced greater reductions in mobility. Within cities, wealthier residents are more likely to reduce mobility, and commuters are especially more likely to stay home when their work is located in wealthy or commercially/industrially formalized neighbourhoods..Hence, our results indicate that cities' employment characteristics and work-from-home capabilities are the primary determinants of mobility reduction. This finding underscores the need for mitigations aimed at lower income/informal workers, and sheds light on critical dependencies between socioeconomic classes in Latin American cities.
Discussion of "Analysis of variance--why it is more important than ever" by A. Gelman
Creators: name: Hox, Joop
name: Hoijtink, Herbert
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: Discussion of ``Analysis of variance--why it is more important than ever'' by A. Gelman [math.ST/0504499]
description: Published at http://dx.doi.org/10.1214/009053604000001048 in the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
1997 BUSINESS ANALYSIS SUMMARY FOR SWINE FARMS
Creators: name: Nott, Sherrill B.
name: Nott, Sherrill B.
Publisher: name: Unknown
Year: 1998
Subjects: Livestock Production/Industries

description: Farm types were assigned using the 1992 Census of Agriculture's Standard Industrial Classification (SIC) definitions. Basically, any farm with 50 percent or more of value of farm sales from one item becomes a farm of that type. Swine farms have 50 percent or more of value of combined sales from fat hogs, feeder pigs and cull breeding hogs. This report is a summary of the financial and production records kept by swine farmers enrolled in the Telfarm/MicroTel record program through Michigan State University Extension, or were accounting clients of AgriSolutions.
A MARKET OPPORTUNITY STUDY FOR THE DEVELOPMENT OF A NEW SPORT HORSE SERVICE AT THE MSU VETERINARY TEACHING HOSPITAL
Creators: name: Larsen, Eric R.
name: Lloyd, James W.
name: Larsen, Eric R.
name: Lloyd, James W.
Publisher: name: Unknown
Year: 2002
Subjects: Teaching/Communication/Extension/Profession

description: The potential need for several new services within the Veterinary Teaching Hospital (VTH) is unknown. However, based on focus groups and practitioner surveys conducted over the last several years, potential new services were identified: overnight emergency, behavior medicine, equine sports medicine, dentistry, oncology and exotic animal medicine. Michigan State University's College of Veterinary Medicine (MSU-CVM) has recently expanded its equine research, diagnostic and therapy capabilities with the addition of the new Mary Anne McPhail Equine Performance Center. As a result of this expansion, a study was conducted to determine whether the VTH should also broaden its clinical offerings with a new complement of services targeted specifically toward sport horse care.
Thermodynamic equilibrium of massless fermions with vorticity, chirality and electromagnetic field
Creators: name: Buzzegoli, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a study of the thermodynamics of the massless free Dirac field at equilibrium with axial charge, angular momentum and and external electromagnetic field to assess the interplay between chirality, vorticity and electromagnetic field in relativistic fluids. After discussing the general features of global thermodynamic equilibrium in quantum relativistic statistical mechanics, we calculate the thermal expectation values. Axial imbalance and electromagnetic field are included non-perturbatively by using the exact solutions of the Dirac equation, while a perturbative expansion is carried out in thermal vorticity. It is shown that the chiral vortical effect and the axial vortical effect are not affected by a constant homogeneous electromagnetic field.
description: 40 pages; final version published in "Strongly Interacting Matter under Rotation", Lect. Notes Phys. 987
Two-dimensional chromium bismuthate: A room-temperature Ising ferromagnet with tunable magneto-optical response
Creators: name: Mogulkoc, A.
name: Modarresi, M.
name: Rudenko, A. N.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a density functional theory (DFT) based study of a two-dimensional phase of chromium bismuthate (CrBi), previously unknown material with exceptional magnetic and magnetooptical characteristics. Monolayer CrBi is a ferromagnetic metal with strong spin-orbit coupling induced by the heavy bismuth atoms, resulting in a strongly anisotropic Ising-type magnetic ordering with the Curie temperature estimated to be higher than 300 K. The electronic structure of the system is topologically nontrivial, giving rise to a nonzero Berry curvature in the ground magnetic state, leading to the anomalous Hall effect with the conductivity plateau of $\sim$1.5 $e^2/h$ at the Fermi level. Remarkably, the Hall conductivity and the magnetooptical constant are found to be strongly dependent on the direction of magnetization. Besides, monolayer CrBi demonstrates the polar magnetooptical Kerr effect in the visible and near-ultraviolet spectral ranges with the maximum rotation angles of up to 10 mrad. Our findinds suggest that monolayer CrBi is a promising system for practical applications in magnetooptical and spintronic devices.
Predicting Transport Effects of Scintillation Light Signals in Large-Scale Liquid Argon Detectors
Creators: name: Garcia-Gamez, D.
name: Green, P.
name: Szelc, A. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Liquid argon is being employed as a detector medium in neutrino physics and Dark Matter searches. A recent push to expand the applications of scintillation light in Liquid Argon Time Projection Chamber neutrino detectors has necessitated the development of advanced methods of simulating this light. The presently available methods tend to be prohibitively slow or imprecise due to the combination of detector size and the amount of energy deposited by neutrino beam interactions. In this work we present a semi-analytical model to predict the quantity of argon scintillation light observed by a light detector with a precision better than $10\%$, based only on the relative positions between the scintillation and light detector. We also provide a method to predict the distribution of arrival times of these photons accounting for propagation effects. Additionally, we present an equivalent model to predict the number of photons and their arrival times in the case of a wavelength-shifting, highly-reflective layer being present on the detector cathode. Our proposed method can be used to simulate light propagation in large-scale liquid argon detectors such as DUNE or SBND, and could also be applied to other detector mediums such as liquid xenon or xenon-doped liquid argon.
description: 23 pages, 27 figures, Accepted by EPJC
Arbeitsgemeinsschaft für ökumenisches Liedgut, Gemeinsame Kirchenlieder
Creators: name: Krüger
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 22 Nr. 4 (1973): Ökumenische Rundschau, Band 22, Heft 4
Nonspreading Light Pulses in Photonic Crystals
Creators: name: Staliunas, K.
name: Serrat, C.
name: Herrero, R.
name: Cojocaru, C.
name: Trull, J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We investigate propagation of light pulses in photonic crystals in the vicinity of the zero-diffraction point. We show that Gaussian pulses due to nonzero width of their spectrum spread weakly in space and time during the propagation. We also find the family of nonspreading pulses, propagating invariantly in the vicinity of the zero diffraction point of photonic crystals.
Flavor-specific Interaction Favors Strong Neutrino Self-coupling in the Early Universe
Creators: name: Das, Anirban
name: Ghosh, Subhajit
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Flavor-universal neutrino self-interaction has been shown to ease the tension between the values of the Hubble constant measured from early and late Universe data. We introduce a self-interaction structure that is flavor-specific in the three active neutrino framework. This is motivated by the stringent constraints on new secret interactions among electron and muon neutrinos from several laboratory experiments. Our study indicates the presence of a strongly interaction mode which implies a late-decoupling of the neutrinos just prior to matter radiation equality. Using the degeneracy of the coupling strength with other cosmological parameters, we explain the origin of this new mode as a result of better fit to certain features in the CMB data. We find that if only one or two of the three active neutrino flavors are interacting, then the statistical significance of the strongly-interacting neutrino mode increases substantially relative to the flavor-universal scenario. However, the central value of the coupling strength for this interaction mode does not change by any appreciable amount in the flavor-specific cases. We also briefly analyze a scenario with more than three neutrino species of which only one is self-interacting. In none of the cases, we find a large enough Hubble constant that could resolve the so-called Hubble tension.
description: 40 pages, 16 figures, (v2) Improved and extended analysis, BAO section added, Results unchanged, (v3) Matches published version
Spherical spin glass model with external field
Creators: name: Baik, Jinho
name: Collins-Woodfin, Elizabeth
name: Doussal, Pierre Le
name: Wu, Hao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We analyze the free energy and the overlaps in the 2-spin spherical Sherrington Kirkpatrick spin glass model with an external field for the purpose of understanding the transition between this model and the one without an external field. We compute the limiting values and fluctuations of the free energy as well as three types of overlaps in the setting where the strength of the external field goes to zero as the dimension of the spin variable grows. In particular, we consider overlaps with the external field, the ground state, and a replica. Our methods involve a contour integral representation of the partition function along with random matrix techniques. We also provide computations for the matching between different scaling regimes. Finally, we discuss the implications of our results for susceptibility and for the geometry of the Gibbs measure. Some of the findings of this paper are confirmed rigorously by Landon and Sosoe in their recent paper which came out independently and simultaneously.
description: 75 pages, 9 figures, 5 tables. Version 2: a few small typos are corrected. One author's last name (Collins-Woodfin) is changed from version 1. Version 3: corrected a few small typos and added one reference [11]
Multilingual Speech Translation KIT @ IWSLT2021
Creators: name: Pham, Ngoc-Quan
name: Ha, Thanh-Le
name: Stüker, Sebastian
name: Waibel, Alexander
name: He, Dan
name: Nguyen, Tuan Nam
Publisher: name: Association for Computational Linguistics (ACL)
Year: 2021

description: This paper contains the description for the submission of Karlsruhe Institute of Technology (KIT) for the multilingual TEDx translation task in the IWSLT 2021 evaluation campaign. Our main approach is to develop both cascade and end-to-end systems and eventually combine them together to achieve the best possible results for this extremely low-resource setting. The report also confirms certain consistent architectural improvement added to the Transformer architecture, for all tasks: translation, transcription and speech translation.
Clustering and properties of K-band companion galaxies around USS radio sources
Creators: name: Bornancini, Carlos G.
name: Lambas, Diego G.
name: De Breuck, Carlos
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have analyzed galaxy properties in the environment of a sample of 70 Ultra Steep Spectrum (USS) radio sources selected from the Sydney University Molonglo sky Survey and the NRAO VLA Sky Survey catalogues, using near-IR data complete down to Ks=20. We have quantified galaxy excess around USS targets using an Abell-type measurement N0.5 (Hill & Lilly 1991). We find that most of the USS fields studied are compatible with being Abell class 0 richness clusters. A statistical analysis of the distribution of companion galaxies around USS radio sources show a pronounced tendency for such objects to be found in the direction defined by the radio axis, suggesting that they may be related to the presence of the radio sources. We have also measure the central concentration of light of the USS sample and compare these to the values obtained for field galaxies and galaxies selected through other methods. By using Spearman statistics to disentangle richnesses and concentration indices dependences, we detect a weak, but significant, positive correlation. We find that at z > 2 USS radio sources are more concentrated than field galaxies at similar redshifts, indicating that these objects trace the most massive systems at high redshift.
description: Accepted for publication in MNRAS, 10 pages including 11 PostScript figures and 2 tables
PRICING AND USE OF DROUGHT-STRESSED AND IMMATURE CORN AS SILAGE FOR BEEF CATTLE
Creators: name: Black, J. Roy
name: Schwab, Gerald
name: Rust, Steven R.
name: Buskirk, Dan
name: Black, J. Roy
name: Schwab, Gerald
name: Rust, Steven R.
name: Buskirk, Dan
Publisher: name: Unknown
Year: 1996
Subjects: Demand and Price Analysis

description: No abstract available.
Unraveling the origin of magnetic fields in galaxies
Creators: name: Martin-Alvarez, Sergio
name: Katz, Harley
name: Sijacki, Debora
name: Devriendt, Julien
name: Slyz, Adrianne
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Despite their ubiquity, there are many open questions regarding galactic and cosmic magnetic fields. Specifically, current observational constraints cannot rule out if magnetic fields observed in galaxies were generated in the Early Universe or are of astrophysical nature. Motivated by this we use our magnetic tracers algorithm to investigate whether the signatures of primordial magnetic fields persist in galaxies throughout cosmic time. We simulate a Milky Way-like galaxy in four scenarios: magnetised solely by primordial magnetic fields, magnetised exclusively by SN-injected magnetic fields, and two combined primordial + SN magnetisation cases. We find that once primordial magnetic fields with a comoving strength $B_0 >10^{-12}$ G are considered, they remain the primary source of galaxy magnetisation. Our magnetic tracers show that, even combined with galactic sources of magnetisation, when primordial magnetic fields are strong, they source the large-scale fields in the warm metal-poor phase of the simulated galaxy. In this case, the circumgalactic and intergalactic medium can be used to probe $B_0$ without risk of pollution by magnetic fields originated in the galaxy. Furthermore, whether magnetic fields are primordial or astrophysically-sourced can be inferred by studying local gas metallicity. As a result, we predict that future state-of-the-art observational facilities of magnetic fields in galaxies will have the potential to unravel astrophysical and primordial magnetic components of our Universe.
description: Accepted for publication in MNRAS. 19 pages, 13 figures and 1 appendix
Combretum comosum var. hispidum Jongkind, 2014, comb. nov.
Creators: name: Jongkind, Carel C. H.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Myrtales
Combretaceae
Combretum
Combretum comosum
Combretum comosum g.don var. hispidum

description: Combretum comosum G.Don var. hispidum (M.A.Lawson) Jongkind, comb. nov. Flore Analytique du Bénin: 485 (2006). Combretum hispidum M.A.Lawson, Flora of Tropical Africa 2: 421 (1871); Engler & Diels, Monographieen afrikanischer Pflanzen Familien und Gattungen 3: 91 (1899); Keay, Flora of West Tropical Africa 1: 274 (1954); Liben, Flore du Congo, du Rwanda et du Burundi, Combretaceae: 33 (1968); Exell & Garcia, Conspectus Florae Angolensis 4: 78 (1970); Liben, Flore du Cameroun 25: 33 (1983). — Type: Gabon /Eq. Guinea, Muni R, fl., VIII.1862, Mann 1760 (holo-, K; iso-, P [P00391746, P00391747]). DISTRIBUTION. — Guinea to Uganda and Angola.
description: Published as part of Jongkind, Carel C. H., 2014, Notes on African Combretum Loefl. species (Combretaceae), pp. 315-327 in Adansonia (3) (3) 36 (2) on page 318, DOI: 10.5252/a2014n2a11, http://zenodo.org/record/4599512
Collective Flow Distributions and Nuclear Stopping in Heavy-ion Collisions at AGS, SPS and RHIC
Creators: name: Feng, Shengqin
name: Yuan, Xianbao
name: Shi, Yafei
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the production of proton, antiproton and net-proton at \AGS, \SPS and \RHIC within the framework non-uniform flow model(NUFM) in this paper. It is found that the system of RHIC has stronger longitudinally non-uniform feature than AGS and SPS, which means that nuclei at RHIC energy region is much more transparent. The NUFM model provides a very good description of all proton rapidity at whole AGS, SPS and RHIC. It is shown that our analysis relates closely to the study of nuclear stopping and longitudinally non-uniform flow distribution of experiment. This comparison with AGS and SPS help us to understand the feature of particle stopping of thermal freeze-out at RHIC experiment.
description: 16 pages,7 figures
Performance analysis of some new and existing transmit and receive antenna diversity schemes
Creators: name: Feng, Xiaoyan Sarina
Publisher: name: University of British Columbia
Year: 2009

description: A well-known method for symbol detection involving signals received over a number of independent diversity branches perturbed by additive white Gaussian noise is Maximum Ratio Combining (MRC). Two other diversity schemes, Simple Transmit Diversity (STD) and Maximum Ratio Transmission (MRT), have recently been proposed. The performances of these three schemes are compared. The STD scheme, which is applicable only to two transmit antennas, is shown to have the same error performance as MRC with the same diversity order when perfect channel estimates are available. The MRT scheme with N transmit and one receive antennas is shown to have the same performance as MRC with N receive antennas, but MRT with one transmit and N > 1 receive antennas or MRT with N > 1 transmit and M > 1 receive antennas do not perform as well as MRC. The performance degradations of MRC, STD and MRT due to errors in estimating the channel parameters are analyzed and compared. It is found that STD is significantly more susceptible than MRC and MRT to errors in the channel estimates. An improved scheme for MRT (IMRT) and a new optimal maximum ratio transmission and combining scheme (MRTC) are proposed. In the IMRT scheme, the same transmit weighting functions are used as in MRT. At the receiver, MRC combining rules are used to choose the weights for the received signals. The MRTC scheme maximizes the SNR using optimal transmit and receive weighting factors. Simulation results indicate that both IMRT and MRTC provide significant performance improvements over MRT.
THE PROPENSITY TO ENTER AND EXIT EXPORT MARKETS: A MAIL SURVEY OF SMALLER AGRI-FOOD FIRMS IN MICHIGAN
Creators: name: Sterns, James A.
name: Peterson, H. Christopher
name: Sterns, James A.
name: Peterson, H. Christopher
Publisher: name: Unknown
Year: 1996
Subjects: International Relations/Trade

description: EXECUTIVE SUMMARY: In the Fall of 1994, researchers in the Department of Agricultural Economics at Michigan State University identified the following two questions: 1.To what degree (if any) are smaller agribusiness and food industry firms involved in international markets? 2.To what degree (if any) are international markets a potential opportunity for smaller agribusiness and food industry firms? In an effort to address these two questions, researchers contacted 543 Michigan-based, small- to medium-sized agri-food firms to solicit their participation in a mail survey. Firms willing to participate in the study returned a postcard with a limited amount of information on it about the company's current marketing and sales activities. An additional 88 firms agreed to participate in the survey when they were contacted by telephone. Of the 242 firms that were sent a mail survey, 46% returned a completed questionnaire (n=112). Sixty-seven of the returned surveys were from non-exporting firms, 37 were current exporters and 12 were firms that had once been exporters but were now re-focused on U.S. markets. Statistical analysis of the returned survey data consisted of cross- tabulations, a base-line logistic regression using variables taken from the mail survey, and a second logistic regression using a six factor model generated during factor analysis of the data base. The predictive accuracy of the two logistic regression models were 88.46 and 87.76%, respectively. The statistical analysis identified a set of explanatory variables that influenced the probability a given firm would be an exporter. The implications of these findings are that decisions about exporting are influenced by the following: * a decision maker's perceptions about transaction costs in international markets (e.g., the costs of writing and negotiating contracts, collecting payments, enforcing protection from bankruptcy defaults) * a decision maker's perceptions about demand in international markets (e.g., growth of markets, sales opportunities, global supply relative to demand) * the ability to establish and sustain relationships with international customers * key environmental stimuli that increase the decision maker's exposure to an international frame of reference (e.g., receiving unsolicited orders from customers outside the U.S., having customers who are exporters) * firm size correlates positively with the probability to export. However, size is neither a necessary nor sufficient condition to be an exporter. The study identified both very small firms (as few as 2 employees) that were exporters and larger firms (over 100 employees) that were non-exporters.
2002 MICHIGAN UPPER PENINSULA DAIRY FARM BUSINESS ANALYSIS SUMMARY
Creators: name: Wittenberg, Eric
name: Wolf, Christopher A.
name: Wittenberg, Eric
name: Wolf, Christopher A.
Publisher: name: Unknown
Year: 2003
Subjects: Livestock Production/Industries

description: This report summarizes the 2002 financial and production records of 22 dairy farms from the Upper Peninsula of Michigan, Table 1. To be included, the farms must have produced at least 50 percent of gross cash farm income from milk and dairy animal sales. The records came from Michigan State University's TelFarm/MicroTel project, the Farm Credit Service system, or by AgriSolutions in Michigan. The values were pooled into averages for reporting purposes. Farm records were included if a farm financial summary was completed on 2002 data including beginning and ending balance sheets, plus income and expenses. The data was checked to verify that cash discrepancy was less than 10% of gross cash inflow and that debt discrepancy was less than $1,000. While considerable variation in the data exists, average values are reported in the summary tables that follow.
DETERMINISTIC NONPARAMETRIC MARKET POWER TESTS: AN EMPIRICAL INVESTIGATION
Creators: name: Raper, Kellie Curry
name: Noelke, Corinna M.
name: Raper, Kellie Curry
name: Noelke, Corinna M.
Publisher: name: Unknown
Year: 2001
Subjects: subject: Marketing
subject: FOS: Economics and business

description: A review of recent literature reflects the development of several deterministic nonparametric market power tests. We use Monte Carlo experiments to evaluate the veracity of four monopolistic and four monopsonistic market power tests that use the deterministic nonparametric approach. The experiments are implemented using data from ten known market structures. When results are compared to Raper, Love, and Shumway's (1999) findings concerning parametric market power tests in the Bresnahan-Lau tradition, we find that the parametric tests perform well while only two of the nonparametric tests appear able to identify market power.
Asymptotic normalization coefficients for mirror virtual nucleon decays in a microscopic cluster model
Creators: name: Timofeyuk, N. K.
name: Descouvemont, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: It has been suggested recently (Phys. Rev. Lett. 91, 232501 (2003)) that charge symmetry of nucleon-nucleon interactions relates the Asymptotic Normalization Coefficients (ANCs) of proton and neutron virtual decays of mirror nuclei. This relation is given by a simple analytical formula which involves proton and neutron separation energies, charges of residual nuclei and the range of their strong interaction with the last nucleon. Relation between mirror ANCs, if understood properly, can be used to predict astrophysically relevant direct proton capture cross sections using neutron ANCs measured with stable beams. In this work, we calculate one-nucleon ANCs for several light mirror pairs, using microscopic two-, three- and four-cluster models, and compare the ratio of mirror ANCs to the predictions of the simple analytic formula. We also investigate mirror symmetry between other characteristics of mirror one-nucleon overlap integrals, namely, spectroscopic factors and single-particle ANCs.
description: 12 pages, submitted to Phys. Rev. C
Combretum carringtonianum Exell & Garcia
Creators: name: Jongkind, Carel C. H.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Myrtales
Combretaceae
Combretum
Combretum carringtonianum

description: Combretum carringtonianum Exell & Garcia (Figs 2; 3) Two flowering specimens collected in 1994 in Kigoma distr. in Tanzania, Bidgood, Mbago & Vollesen 2772 & 2858, represent a new species for the tropical East Africa Flora region. Ŋe plants most likely belong to C. carringtoniana but the characteristic fruits are not collected yet to confirm this identity.
description: Published as part of Jongkind, Carel C. H., 2014, Notes on African Combretum Loefl. species (Combretaceae), pp. 315-327 in Adansonia (3) (3) 36 (2) on page 318, DOI: 10.5252/a2014n2a11, http://zenodo.org/record/4599512
Commensurate and incommensurate ground states of Cs_2CuCl_4 in a magnetic field
Creators: name: Veillette, M. Y.
name: Chalker, J. T.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present calculations of the magnetic ground state of Cs_2CuCl_4 in an applied magnetic field, with the aim of understanding the commensurately ordered state that has been discovered in recent experiments. This layered material is a realization of a Heisenberg antiferromagnet on an anisotropic triangular lattice. Its behavior in a magnetic field depends on field orientation, because of weak Dzyaloshinskii-Moriya interactions.We study the system by mapping the spin-1/2 Heisenberg Hamiltonian onto a Bose gas with hard core repulsion. This Bose gas is dilute, and calculations are controlled, close to the saturation field. We find a zero-temperature transition between incommensurate and commensurate phases as longitudinal field strength is varied, but only incommensurate order in a transverse field. Results for both field orientations are consistent with experiment.
description: 5 Pages, 3 Figures
Enhanced force sensitivity and entanglement in periodically driven optomechanics
Creators: name: Cosco, F.
name: Pedernales, J. S.
name: Plenio, M. B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Squeezing is a resource that enables precision enhancements in quantum metrology and can be used as a basis for the generation of entanglement by linear optics. While strong squeezing is challenging to generate in optical fields, here we present simple periodic modulation protocols in optomechanical systems that can generate large squeezing of their mechanical degrees of freedom for realistic system parameters. We then proceed to show how such protocols can serve to improve the measurement precision of weak forces and enhance the generation of entanglement between test masses that are subject to any kind of weak interaction. Moreover, these protocols can be reverted to reduce the amount of injected energy, while preserving the generated entanglement and making it more resilient to noise. We present the principle at work, discuss its application in a variety of physical settings, including levitated and tethered mechanical harmonic oscillators, and present example applications to Casimir and gravitational forces.
description: 11 pages, 4 figures
СИНТАКСИЧЕСКАЯ СИНОНИМИЯ КАК  ОБЪЕКТ ЛИНГВИСТИЧЕСКОГО ОПИСАНИЯ
Creators: name: Рахимова, З.
Publisher: name: Zenodo
Year: 2024

description: В данной работе  рассматривается определение синтаксической синонимии, согласно которому к ней следует относить прежде всего предложения, репрезентирующие одну когнитивную ситуацию, при этом построенные по разным моделям и сохраняющие семантическое тождество лексических морфем.
Peculiar properties of the Josephson junction at the transition from 0 to Pi state
Creators: name: Buzdin, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: It is demonstrated that in the diffusive superconductor-ferromagnet-superconductor (S/F/S) junctions the current-phase relation is practically sinusoidal everywhere except in a narrow region near the 0-Pi transition. In this region the second harmonic dominates the scenario of the 0-Pi transition. We predict a first order transition for the S/F/S junctions with a homogeneous F barrier. However, in real junctions a small modulation of the thickness of the barrier may favor the continious 0-Pi transition and the realisation of the Josephson junction with an arbitrary ground state phase difference. The performed calculations of the second harmonic amplitude provide a natural explanation of the recent contradictory results on the second harmonic measurements.
description: Corrected version. To be published in PRB Rapid Communications
MPEC 2024-A110 : 2016 FM151
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

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.
Simulations of the star-forming molecular gas in an interacting M51-like galaxy: cloud population statistics
Creators: name: Tress, Robin G.
name: Sormani, Mattia C.
name: Smith, Rowan J.
name: Glover, Simon C. O.
name: Klessen, Ralf S.
name: Mac Low, Mordecai-Mark
name: Clark, Paul
name: Duarte-Cabral, Ana
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: To investigate how molecular clouds react to different environmental conditions at a galactic scale, we present a catalogue of giant molecular clouds resolved down to masses of $\sim 10$~M$_{\odot}$ from a simulation of the entire disc of an interacting M51-like galaxy and a comparable isolated galaxy. Our model includes time-dependent gas chemistry, sink particles for star formation and supernova feedback, meaning we are not reliant on star formation recipes based on threshold densities and can follow the physics of the cold molecular phase. We extract giant molecular clouds at a given timestep of the simulations and analyse their properties. In the disc of our simulated galaxies, spiral arms seem to act merely as snowplows, gathering gas and clouds without dramatically affecting their properties. In the centre of the galaxy, on the other hand, environmental conditions lead to larger, more massive clouds. While the galaxy interaction has little effect on cloud masses and sizes, it does promote the formation of counter-rotating clouds. We find that the identified clouds seem to be largely gravitationally unbound at first glance, but a closer analysis of the hierarchical structure of the molecular interstellar medium shows that there is a large range of virial parameters with a smooth transition from unbound to mostly bound for the densest structures. The common observation that clouds appear to be virialised entities may therefore be due to CO bright emission highlighting a specific level in this hierarchical binding sequence. The small fraction of gravitationally bound structures found suggests that low galactic star formation efficiencies may be set by the process of cloud formation and initial collapse.
description: 22 pages, 26 figures, 2 tables. Properties of the clouds in the catalog are provided as a supplementary file
Combretum gillettianum Liben
Creators: name: Jongkind, Carel C. H.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Myrtales
Combretaceae
Combretum
Combretum gillettianum

description: Combretum gillettianum Liben (Fig. 5) Bulletin du Jardin botanique national de l'État à Bruxelles 35 (2): 177 (1965); Wickens, Flora of East Tropical Africa, Combretaceae: 22 (1973); Exell, Flora Zambesiaca 4: 116 (1978). MATERIAL EXAMINED. — Tanzania. Sumbawanga, 7°58'S, 31°36'E, Richards 10166 (K); Kasanga, 8°27'S, 31°10'E, Richards 11813 (K); Kasanga-Matai road, 8°27'S, 31°09'E, Schmidt et al. 1228 (MO, WAG). Zambia. 1.6 km E of Mpulungu, Angus 773a (BM, FHO, K); Yendwe R.valley escarpment, 8°40'S, 30°42'E, Fanshawe F 5619 (BR, FHO, K); Kalambo Falls, 8°35'S, 31°13'E, Proctor 1864 (K); Kambole escarpment, c. 8°50'S, 30°50'E, Richards 15260 (K); Kalambo Falls, Sanana 1452 (K, WAG); Mpulungu, White 3679 (BM, BR, FHO, K). DESCRIPTION Shrub or tree up to 18 m tall growing in Brachystegia woodland and deciduous thicket from 800 m up to 1300 m altitude. NOTE Selected specimens representing the collecting localities on the map. After re-examination in several herbaria of all material called C. gillettianum it became clear that this species has an even more limited geographical distribution than thought before.Ŋe material cited by Liben (1968: 70) as C. gillettianum does not belong to this species but to C. acutifolium Exell. Ŋe real C. gillettianum is only found in a small area around the southern end of Lake Tanganyika, this area is divided in two by the border between Tanzania and Zambia (Fig. 5).
description: Published as part of Jongkind, Carel C. H., 2014, Notes on African Combretum Loefl. species (Combretaceae), pp. 315-327 in Adansonia (3) (3) 36 (2) on pages 319-320, DOI: 10.5252/a2014n2a11, http://zenodo.org/record/4599512
description: {"references": ["LIBEN L. 1968. - Combretaceae, in Flore du Congo, du Rwanda et du Burundi. Jardin botanique national de Belgique: 109."]}
A violation of global symmetries from replica wormholes and the fate of black hole remnants
Creators: name: Hsin, Po-Shen
name: Iliesiu, Luca V.
name: Yang, Zhenbin
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show that the presence of replica wormholes in the Euclidean path integral of gravity leads to a non-perturbative violation of charge conservation for any global symmetry present in the low-energy description of quantum gravity. Explicitly, we compute the scattering probability between different charged states in several two-dimensional models of quantum gravity and find a non-vanishing answer. This suggests that the set of all charged states is typically over-complete, which has drastic consequences for the fate of black hole remnants that could carry a global symmetry charge. In the holographic context, we argue that the presence of such a symmetry in the effective description of the bulk should appear on the boundary as an emergent global symmetry after ensemble averaging.
description: 44 pages, 7 figures
Discussion of "Analysis of variance--why it is more important than ever" by A. Gelman
Creators: name: Zaslavsky, Alan M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: Discussion of ``Analysis of variance--why it is more important than ever'' by A. Gelman [math.ST/0504499]
description: Published at http://dx.doi.org/10.1214/009053604000001048 in the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
A new model of regular black hole in $(2+1)$ dimensions
Creators: name: Estrada, Milko
name: Tello-Ortiz, Francisco
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We provide a new regular black hole solution in $(2+1)$ dimensions with presence of matter fields in the energy momentum tensor, having its core a flat or (A)dS structure. Since the first law of thermodynamics for regular black holes is modified by the presence of the matter fields, we provide a new version of the first law, where a local definition of the variation of energy is defined, and, where the entropy and temperature are consistent with the previously known in literature. It is shown that the signs of the variations of the local definition of energy and of the total energy coincide. Furthermore, at infinite, the usual first law $dM=TdS$ is recovered. It is showed that the formalism used is effective to compute the total energy of regular black holes in $(2+1)$ with presence of matter in the energy momentum tensor. This latter suggests the potential applicability of this formalism to calculate the mass of other models of regular black holes in $d \ge 4$ dimensions.
description: accepted for publication in EPL