cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Antarctic Tourists: A Case Study of Their Evaluation of Antarctic Wildlife and Environmental Issues
Creators: name: Tisdell, Clement A.
name: Wilson, Clevo
name: Kriwoken, Lorne
name: Tisdell, Clement A.
name: Wilson, Clevo
name: Kriwoken, Lorne
Publisher: name: Unknown
Year: 2004
Subjects: subject: Environmental Economics and Policy
subject: Antarctic wildlife conservation
subject: environmental issues
subject: willingness to pay
subject: Antarctica

description: Reports the results of surveys of Antarctic cruise ship passengers on the ‘Akademik Ioffe’ who undertook their Antarctic journey in January 2003. The prime purposes of the surveys were to determine the socio-economic profile of these travellers, evaluate the importance of Antarctic wildlife for their travel, their attitude to Antarctic wildlife conservation as well as environmental issues involving Antarctica, both prior to their tourist visit to Antarctica and following it. This paper reports on the socio-economic profile of respondents, their willingness to pay for their Antarctic trip, and their knowledge of Antarctica. The comparative importance of Antarctic wildlife as a factor motivating respondents to undertake their journey is assessed and the evaluation of travellers following their Antarctic visit is considered. The relative importance of different Antarctic wildlife species is taken into account as well as Antarctic attractions other than wildlife. The attitudes of respondents to several environmental issues involving Antarctica, (eg. the commercial use of its natural resources and global environmental change impacting on Antarctica) are canvassed and summarised. In conclusion, the relevance of the survey results for Antarctic conservation are discussed. Particular attention is given to the question of whether Antarctic tourism favours or threatens Antarctic nature conservation.
Incompleteness Matters Not: Inference of $H_0$ from BBH-galaxy cross-correlations
Creators: name: Bera, Sayantani
name: Rana, Divya
name: More, Surhud
name: Bose, Sukanta
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We show how the angular clustering between gravitational-wave standard sirens and galaxies with known redshifts allows an inference of the Hubble constant, regardless of whether the host galaxies of any of these sirens are present in the galaxy catalog. We demonstrate this for the first time with realistic simulations of gravitational-wave signals from binary black holes in a three-detector network with Advanced LIGO and Advanced Virgo sensitivities. We show that with such a network, the cross-correlation technique can be used to infer the Hubble parameter with a precision of less than 10% (2%) at 90% confidence with 50 (500) sources, even with a 100% incomplete catalog, which does not contain the hosts of any of the gravitational-wave events. We compare our method with the current state-of-the-art techniques used for the inference of the Hubble parameter from real data. We argue that, if the clustering information is not used explicitly, the inference of $H_0$ from real data is expected to be prior-dominated.
description: 15 pages, 11 figures, few references modified, matches published version
Preferred reversal paths caused by a heterogeneous conducting layer at the base of the mantle
Creators: name: Costin, Simona E.O.
Publisher: name: University of British Columbia
Year: 2009

description: Paleomagnetic data from sedimentary and volcanic rocks suggest that the positions of the Virtual Geomagnetic Pole (VGP) during polarity reversals over the past few million years are confined to longitudes through the Americas and Asia. In this study I examine the possibility that lateral conductivity variations in the lowermost region of the mantle contribute to the geographical distribution of the reversal paths. The conductivity model consists of a thin layer of material with variable electrical properties which accumulates in the core-mantle boundary region. The pattern of conductivity relies on the geodynamic predictions of the boundary topography and is in good agreement with the seismological observations of heterogeneities at the core-mantle boundary. Temporal variations in the dipole field during a reversal generate electric currents in the conductive layer, which in turn produce a secondary magnetic field. Superposition of the secondary field on a transition field affects the declination and inclination of the magnetic field at the surface and thereby changes the position of the V G P during a reversal. My results predict preferred reversal paths over North America for uniform sampling of testing sites. This corresponds to one preferred path previously observed in the geological records. In addition, preferred paths over the Americas and Asia are predicted when using the same testing sites as the paleomagnetic database, compatible with the distribution of paths given by the observations.
Direct Detection of Sub-stellar Companions with MIDI
Creators: name: Schuller, Peter
name: Vannier, Martin
name: Petrov, Romain
name: Lopez, Bruno
name: Leinert, Christoph
name: Henning, Thomas
name: .
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Current detection methods of planetary companions do not allow retrieving their spectral information properties. The method of Differential Interferometry has the potential to complement such information by comparing interferometric observables in various spectral channels. We outline the basic aspects of this method and how it can soon be realised by the Mid-infrared Interferometric instrument (MIDI) at the Very Large Telescope Interferometer (VLTI) observatory. A set of possible candidates for such direct observation has been selected among currently identified planetary companions. Differential Interferometry with MIDI would be complementary to other ground-based programs. The method may also be an alternative for future space-based planetary spectroscopy.
description: 5 pages, 3 figures; Latex esapub class and packages graphicx, hyperref, and natbib
Delegation vs. direct sourcing revisited: contract types under correlated supply risks and asymmetric cost information
Creators: name: Jiguang Chen
name: Xu, He
name: Zhou, Pin
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Space Science
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: Plant Biology
subject: FOS: Biological sciences

description: As a popular practice in purchasing, an ever-increasing number of upper-tier suppliers are being added in the supply base of the original equipment manufacturer (OEM) and leveraged to reduce supply risk. This new trend increases the OEM's opportunities to directly source from tier-2 suppliers (direct sourcing for better control) in addition to delegating tier-1 suppliers to source on behalf of the OEM itself (delegation). This paper is devoted to comparing these two mechanisms (delegation vs. direct souring) under both asymmetric information on the production costs of tier-2 suppliers and correlated supply disruptions with tier-2 suppliers. When the OEM offers a revenue-sharing term contract or a base-commitment term contract (in which the OEM is required to procure a fixed base quantity in addition to an option of procuring additional units at a pre-specified price) to a tier-1 supplier under delegation, delegation achieves the same profit for the OEM as direct sourcing does. However, under a fixed-quantity term contract, delegation achieves a lower profit for the OEM than direct sourcing does, no matter the CM is subject to the procurement budget constraint or deep pocket. Moreover, we find delegation may lead to a higher profit for the OEM than direct sourcing does if an improved fixed-quantity term contract is used under delegation with a deep-pocket CM.
Bericht über die Tätigkeit der orientalischen wissenschaftlichen Station der Görresgesellschaft in Jerusalem
Creators: name: Kirsch, I. P.
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 11 Nr. 2 (1913): Oriens christianus, Band 11, Heft 2
Numerical Evaluation of Cuspoid and Bessoid Oscillating Integrals for Applications in Chemical Physics
Creators: name: Connor, J. N. L.
name: Hobbs, C. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Oscillating integrals often arise in the theoretical description of phenomena in chemical physics, in particular in atomic and molecular collisions, and in spectroscopy. A computer code for the numerical evaluation of the oscillatory cuspoid canonical integrals and their first-order partial derivatives is described. The code uses a novel adaptive contour algorithm, which chooses a contour in the complex plane that avoids the violent oscillatory and exponential natures of the integrand and modifies its choice as necessary. Applications are made to the swallowtail canonical integral and to a bessoid integral.
description: 7 pages
Grallaria cochabambae Bond & Meyer de Schauensee 1940
Creators: name: Isler, Morton L.
name: Chesser, Terry
name: Robbins, Mark B.
name: Cuervo, Andrés M.
name: Cadena, Carlos Daniel
name: Hosner, Peter A.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Passeriformes
Grallariidae
Grallaria
Grallaria cochabambae

description: Grallaria cochabambae Bond & Meyer de Schauensee, 1940, subspecies elevated to species
Bolivian Antpitta
 Includes population designated cochabambae 2 in the analysis.
 Diagnosis. Upperparts dark reddish yellow-brown; underparts paler grading to pale buffy brown on center of belly and undertail coverts; pale feather edgings and pencil streaks on belly; pale eye-ring. Short songs of two unmodulated notes distinguish G. cochabambae (Fig. 18) from all other populations except G. sinaensis and the nominate form of G. occabambae. The flat or slightly downslurred shape of short song notes of G. cochabambae distinguishes them from the rounded notes of those of G. occabambae. The internote interval of short songs of G. cochabambae is significantly longer than that of G. sinaensis and significantly shorter than that of G. occabambae. Long songs of G. cochabambae differ from those of G. sinaensis and G. occabambae in their sharply downslurred note shape and in their significantly faster pace. They differ from long songs of G. occabambae by their falling and rising frequency pattern and by their duration pattern, in which notes lengthen, become even, and shorten while intervals remain more constant. They differ from long songs of G. sinaensis by the lesser extent that frequency rises in the terminal half of the song.
 Distribution. Endemic to Bolivia in eastern La Paz and Cochabamba, 2950–3500 m.
 Plumage. Overall plumage of upperparts, including rectrices, remiges (primaries edged paler), crown and auriculars, dark reddish yellow-brown (7.5YR 4/4), shading to color of underparts in malar area; eye-ring pale. Throat and breast reddish-yellow-brown (7.5YR 5/8–5/6); belly and undertail coverts pale buffy brown (10YR 7/4), pale feather edgings and pencil streaks restricted to belly; flanks dark reddish yellow brown (7.5 5/4) (specimen photographs App. 6, Fig. A32).
 Etymology. The English name refers to the country to which this species is endemic. The name was also used by Krabbe et al. (2019).
 Remarks. The type locality (Incachaca, Cochabamba) of G. rufula cochabambae falls within the geographic range of this species.
description: Published as part of Isler, Morton L., Chesser, Terry, Robbins, Mark B., Cuervo, Andrés M., Cadena, Carlos Daniel & Hosner, Peter A., 2020, Taxonomic evaluation of the Grallaria rufula (Rufous Antpitta) complex (Aves: Passeriformes: Grallariidae) distinguishes sixteen species, pp. 1-74 in Zootaxa 4817 (1) on page 25, DOI: 10.11646/zootaxa.4817.1.1, http://zenodo.org/record/3954698
ABDULLA ORIPOV VA SHEKSPIR IJODIDA MUHABBAT TASVIRI
Creators: name: Botirova, Rayxona
Publisher: name: Zenodo
Year: 2024

description: Adabiyotning barhayot hisoblanadigan  mavzulari borki, shu paytga qadar birorta shoir bu to‘g‘rida qalam tebratmasdan o‘tib ketolmagan. Bu –  shubhasiz muhabbat mavzusidir. O‘zbek va jahon adabiyotida shunday shoir va yozuvchilar borki, sevgi va muhabbat haqida so‘z ketganda lablarimizda  beixtiyor  o‘sha ijodkorlarning misralari takrorlanadi. Ushbu maqolada jahon shoirlari Abdulla Oripov va Shekspir ijodida muhabbat timsoli haqida so‘z yuritiladi.
Phonon Decoherence of a Double Quantum Dot Charge Qubit
Creators: name: Vorojtsov, Serguei
name: Mucciolo, Eduardo R.
name: Baranger, Harold U.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study decoherence of a quantum dot charge qubit due to coupling to piezoelectric acoustic phonons in the Born-Markov approximation. After including appropriate form factors, we find that phonon decoherence rates are one to two orders of magnitude weaker than was previously predicted. We calculate the dependence of the Q-factor on lattice temperature, quantum dot size, and interdot coupling. Our results suggest that mechanisms other than phonon decoherence play a more significant role in current experimental setups.
description: RevTex, 7 pages, 5 figures. v2: appendix added, more details provided. Accepted for publication in PRB
Asymptotic Boundary Shrink Control with Multi-robot Systems
Creators: name: Luo, Shaocheng
name: Kim, Jonghoek
name: Min, Byung-Cheol
Publisher: name: arXiv
Year: 2020
Subjects: subject: Robotics (cs.RO)
subject: Multiagent Systems (cs.MA)
subject: FOS: Computer and information sciences

description: Harmful marine spills, such as algae blooms and oil spills, damage ecosystems and threaten public health tremendously. Hence, an effective spill coverage and removal strategy will play a significant role in environmental protection. In recent years, low-cost water surface robots have emerged as a solution, with their efficacy verified at small scale. However, practical limitations such as connectivity, scalability, and sensing and operation ranges significantly impair their large-scale use. To circumvent these limitations, we propose a novel asymptotic boundary shrink control strategy that enables collective coverage of a spill by autonomous robots featuring customized operation ranges. For each robot, a novel controller is implemented that relies only on local vision sensors with limited vision range. Moreover, the distributedness of this strategy allows any number of robots to be employed without inter-robot collisions. Finally, features of this approach including the convergence of robot motion during boundary shrink control, spill clearance rate, and the capability to work under limited ranges of vision and wireless connectivity are validated through extensive experiments with simulation.
description: Preprint version. Published in IEEE Transactions on Systems, Man, and Cybernetics: Systems
Die christlich-literarischen Turfan-Funde
Creators: name: Baumstark, Anton
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 11 Nr. 2 (1913): Oriens christianus, Band 11, Heft 2
New collections of p-subgroups and homology decompositions for classifying spaces of finite groups
Creators: name: Maginnis, John
name: Onofrei, Silvia
Publisher: name: arXiv
Year: 2005
Subjects: subject: Group Theory (math.GR)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 20J05(Primary), 20J06, 55R35, 55P91 (Secondary)

description: Let G be a finite group and p a prime dividing its order. We define new collections of p-subgroups of G. We study the homotopy relations among them and with the standard collections of p-subgroups. We determine their ampleness and sharpness properties.
description: 14 pages, some revisions made, final version to appear in Communications in Algebra
WTO Doha Round: Impact of an Agreement on Agriculture and the Importance of Sensitive Products
Creators: name: Binfield, Julian C.R.
name: Donnellan, Trevor
name: Hanrahan, Kevin F.
name: Westhoff, Patrick C.
name: Binfield, Julian C.R.
name: Donnellan, Trevor
name: Hanrahan, Kevin F.
name: Westhoff, Patrick C.
Publisher: name: Unknown
Year: 2009
Subjects: subject: International Relations/Trade
subject: WTO
subject: agriculture
subject: policy analysis
subject: partial equilibrium modelling
subject: baseline
subject: scenario analysis
subject: tariffs
subject: tariff rate quota
subject: sensitive products

description: The Doha round of WTO negotiations has been ongoing since 2001. In the summer of 2008 the negotiations on the modalities for a new WTO agriculture agreement collapsed when seemingly on the verge of a successful conclusion. In this paper we present quantitative analysis of the impact of a new WTO agreement undertaken using a partial equilibrium model of Irish and EU agriculture. Results are presented on the agreement’s impact on Irish and EU-27 agriculture markets and on Irish agricultural sector incomes. Our analysis highlights the importance of the Baseline counter-factual, and will illustrate that protection afforded by the conferral of sensitive product status differs from commodity to commodity. The paper will draw conclusions concerning the economic impact of an agreement on Irish agriculture and Ireland’s likely future perspective on the conclusion of the Doha Round.
Phenomenology and scaling of optimal flapping wing kinematics
Creators: name: Gehrke, Alexander
name: Mulleners, Karen
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Biological flapping wing fliers operate efficiently and robustly in a wide range of flight conditions and are a great source of inspiration to engineers. The unsteady aerodynamics of flapping-wings are dominated by large-scale vortical structures that augment the aerodynamic performance but are sensitive to minor changes in the wing actuation. We experimentally optimise the pitch angle kinematics of a flapping wing system in hover to maximise the stroke average lift and hovering efficiency using a evolutionary algorithm and in-situ force and torque measurements at the wing root. Additional flow field measurements are conducted to link the vortical flow structures to the aerodynamic performance for the Pareto-optimal kinematics. The optimised pitch angle profiles yielding maximum stroke-average lift coefficients have trapezoidal shapes and high average angles of attack. These kinematics create strong leading-edge vortices early in the cycle which enhance the force production on the wing. The most efficient pitch angle kinematics resemble sinusoidal evolutions and have lower average angles of attack. The leading-edge vortex grows slower and stays close-bound to the wing throughout the majority of the stroke-cycle. This requires less aerodynamic power and increases the hovering efficiency by 93% but sacrifices 43% of the maximum lift. In all cases, a leading-edge vortex is fed by vorticity through the leading edge shear-layer which makes the shear-layer velocity a good indicator for the growth of the vortex and its impact on the aerodynamic forces. We estimate the shear-layer velocity at the leading edge solely from the input kinematics and use it to scale the average and the time-resolved evolution of the circulation and the aerodynamic forces.
Communication Costs and Agro-Food Trade in OECD Countries
Creators: name: Bojnec, Stefan
name: Ferto, Imre
name: Bojnec, Stefan
name: Ferto, Imre
Publisher: name: Unknown
Year: 2009
Subjects: subject: International Relations/Trade
subject: Communication costs
subject: Agro-food trade
subject: Gravity model

description: The paper analyses the effects of communication costs for agro-food trade in OECD countries between 1995 and 2003 using gravity model. We find that the link between the communication costs and agro-food trade flows in developed countries is significantly stronger for agricultural than for food products. The improved communication services reduce trade transaction costs. The estimations also confirmed importance of the economy size, level of development in importer countries, and trade distance. The other traditional gravity variables like contiguity, language and regional free trade agreements have significant impacts in the majority of specifications
Measurement of secondary cosmic-ray neutrons near the geomagnetic North Pole
Creators: name: Woolf, Richard S.
name: Sinclair, Laurel E.
name: Van Brabant, Reid A.
name: Harvey, Bradley J. A.
name: Phlips, Bernard F.
name: Hutcheson, Anthony L.
name: Jackson, Emily G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The spectrum of cosmogenic neutrons at Earth's surface covers a wide energy range, from thermal to several GeV. The flux of secondary neutrons varies with latitude, elevation, solar activity, and nearby material, including ground moisture. We report the results from a campaign to measure count rates in neutron detectors responding to three different energy ranges conducted near the geomagnetic North Pole at CFS Alert, Nunavut, Canada (82.5 degrees , 62.5 degrees W; vertical geomagnetic cutoff rigidity, RC = 0 GV) in June of 2016. In November 2016, we performed a follow-on measurement campaign in southern Canada at similar RC (1.5 GV) and elevations. We conducted these measurements, at varying elevation and ground moisture content, with unmoderated and moderated 3He detectors for thermal and epithermal-to-MeV sensitivity, and with EJ-299-33 pulse shape discrimination plastic scintillator detectors for fast neutrons. Background gamma rays were monitored with NaI(Tl) detectors. Using these data sets, we compared the measured count rates to a predictive model. This is the first ever data set taken from this location on Earth. We find that for the thermal and epithermal-to-MeV neutron measurements the predictive model and data are in good agreement, except at one location on rock-covered ground near 1 km elevation. The discrepancy at that location may be attributable to ground moisture variability. Other measurements, during this campaign and prior, support the assertion that ground moisture plays a critical role in determining neutron flux.
description: 28 pages, 9 figures
Estimating the Marginal Costs of Greenhouse Gas Emissions Abatement using Irish Farm-Level Data
Creators: name: Breen, James P.
name: Donellan, Trevor
name: Breen, James P.
name: Donellan, Trevor
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agricultural and Food Policy
subject: Keywords: Farm-Level
subject: Greenhouse Gas Emissions
subject: Marginal Abatement Cost Curve

description: Agriculture in Ireland accounts for a higher proportion of greenhouse gas (GHG) emissions than in any other EU member state. Furthermore as part of the EU’s commitment to reduce emissions by 20 percent by 2020, Ireland is one of the few countries who will have to cuts its 2005 GHG emissions level by the full 20 percent. Given the magnitude of the cut in national emissions that is required and the size of agriculture’s contribution to Ireland’s total emissions, the agriculture sector has been identified by some parties as a sector that could make a significant contribution to achieving the national target. In order to evaluate the impact on Irish farmers of reducing GHG emissions it is necessary to first estimate the marginal cost of emissions abatement. This paper uses Irish farm-level data to construct a linear programming model which in turn is used to estimate the marginal abatement cost curve for GHG emissions on Irish farms and this is aggregated to estimate a marginal cost curve for the agriculture sector. The impact of an emissions tax in achieving targeted levels of GHG emissions will be measured under a baseline scenario of no policy change.
The Nature And Structuration Of Management Control In Knowledge Intensive Work A Study Of Information Technology Services Work In India
Creators: name: Secki Payyappilly Jose
Publisher: name: University of Leicester
Year: 2020
Subjects: Uncategorized

description: The recent decades have been characterised by an increasing share of services work, not only in industrial and developed economies, but also in several developing economies. The growth of several forms of knowledge-intensive work have been integral to these transitions. The following study is an examination of the nature of labour processes and management controls within a type of knowledge-intensive work, specifically Information Technology Services or ITS work. The study is based in the city of Bengaluru, which is located in the State of Karnataka in the southern part of India, and is host to the largest centre of the IT industry in India. The study is qualitative in nature and relies principally on semi-structured interviews — with ITS workers, managers, trade union representatives and government officials — and combines it with a detailed examination of the extant labour institutions that regulate various aspects of work. The study examines the nature and operationalisation of managerial controls in ITS workby utilising an analytical framework based on Edwards’ (1979) conceptualisations of technical and bureaucratic managerial controls. The study analyses the labour process via management controls, but goes further by uncovering and building connections between the managerial controls and labour regulations. The study argues that the selection and nature of managerial control strategies are closely inter-linked and often determined by the scope and extent of local labour institutions. These linkages, between managerial controls and labour legislations, can be found in various aspects related to the management of grievances and separation (resignations and dismissals). Strong contestations also arise between managements and workers over these issues, and the contestations are explored through several examples from the field research data. Overall, the study makes a contribution to a deeper understanding of the basis and form of managerial strategies that seek to extend control over knowledge intensive work.
A phenomenological approach to normal form modeling: a case study in laser induced nematodynamics
Creators: name: Toniolo, C.
name: Russo, G.
name: Residori, S.
name: Tresser, C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: An experimental setting for the polarimetric study of optically induced dynamical behavior in nematic liquid crystal films has allowed to identify most notably some behavior which was recognized as gluing bifurcations leading to chaos. This analysis of the data used a comparison with a model for the transition to chaos via gluing bifurcations in optically excited nematic liquid crystals previously proposed by G. Demeter and L. Kramer. The model of these last authors, proposed about twenty years before, does not have the central symmetry which one would expect for minimal dimensional models for chaos in nematics in view of the time series. What we show here is that the simplest truncated normal forms for gluing, with the appropriate symmetry and minimal dimension, do exhibit time signals that are embarrassingly similar to the ones found using the above mentioned experimental settings. The gluing bifurcation scenario itself is only visible in limited parameter ranges and substantial aspect of the chaos that can be observed is due to other factors. First, out of the immediate neighborhood of the homoclinic curve, nonlinearity can produce expansion leading to chaos when combined with the recurrence induced by the homoclinic behavior. Also, pairs of symmetric homoclinic orbits create extreme sensitivity to noise, so that when the noiseless approach contains a rich behavior, minute noise can transform the complex damping into sustained chaos. Leonid Shil'nikov taught us that combining global considerations and local spectral analysis near critical points is crucial to understand the phenomenology associated to homoclinic bifurcations. Here this helps us construct a phenomenological approach to modeling experiments in nonlinear dissipative contexts.
description: 25 pages, 9 figures
Modelling the mitigation mix: faecal microbes, economic constraints and sustainable land management
Creators: name: Butler, Allan J.
name: Oliver, David
name: Chadwick, Dave
name: Fish, Rob
name: Winter, Michael
name: Hodgson, Chris
name: Heathwaite, Louise
name: Butler, Allan J.
name: Oliver, David
name: Chadwick, Dave
name: Fish, Rob
name: Winter, Michael
name: Hodgson, Chris
name: Heathwaite, Louise
Publisher: name: Unknown
Year: 2009
Subjects: subject: Land Economics/Use
subject: Cost mitigation
subject: cost tool
subject: microbial organisms
subject: whole farm modelling
subject: diffuse pollution

description: Conventional livestock farming provides consumers with cheap and reliable sources of milk and meat. Yet the inevitable by-product, i.e. livestock faecal matter, represents a potential source of pathogenic microorganisms. This paper applies the Faecal Indicator Organisms Costing Assessment Tool (FIOCAT), which was designed as part of the RELU project ‘sustainable and holistic food chains for recycling livestock waste to land’, to examine the costs associated with mitigation methods that may inhibit pathogenic transfers to water. FIO-CAT is comprised of three interrelated models: the economic dairy management (EDM) model, the farm business survey (FBS) model and the manure, infrastructure and environment (MIE) model. Specifically, it models dairy, and cattle and sheep farms in the River Taw catchment in South West England and determines the economic impact that mitigation methods have on farm businesses. However, the inherent complexity associated with heterogeneous landscapes confounds the likelihood that a single management strategy will provide complete protection of receiving waters from microbial contamination.
Der Einfluss der Corona-Pandemie auf den Lebensmittelkonsum der Verbraucher
Creators: name: Profeta, Adriano
name: Smetana, Sergiy
name: Enneking, Ulrich
name: Heinz, Volker
name: Kircher, Christian
Publisher: name: Berichte über Landwirtschaft - Zeitschrift für Agrarpolitik und Landwirtschaft
Year: 2021

description: Ernährungsverhalten der Verbraucher ausübt. So werden vor allen Dingen insgesamt mehr Lebensmittel gegessen und mehr Convenience-Produkte wie Fertiggerichte und Konserven mit längerer Haltbarkeit gekauft. Auch der Konsum von Alkohol und Süßwaren hat eine Steigerung erfahren. Im Gegenzug ist zu beobachten, dass der Verzehr von frischem Obst und Gemüse zurückgegangen ist. Es wird deutlich, dass vor allen Familien die finanziell von der Pandemie betroffen sind, eine vulnerable Gruppe darstellen. Mit zunehmender Dauer der Pandemie, wiederholten Lockdowns, Corona-bedingten Schließungen von Schulen und Kindergärten sind mittel- bis langfristig gesundheitliche Folgen insbesondere für diese Bevölkerungsgruppe zu erwarten.
description: Berichte über Landwirtschaft - Zeitschrift für Agrarpolitik und Landwirtschaft, Aktuelle Beiträge
Upper bounds for fusion processes in collisions of weakly bound nuclei
Creators: name: Canto, L. F.
name: Donangelo, R.
name: Marta, H. D.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We obtain upper limits for the contributions of the incomplete fusion and sequential complete fusion processes to the total fusion cross section. Through those upper bounds we find that these processes are negligible in reactions induced by projectiles such as $^{6}$He and $^{11}$Li, which break up into neutrons and one fragment containing the full projectile charge.
description: 10 pages, 3 figures
Industrial applications of digital rock technology
Creators: name: Berg, Carl Fredrik
name: Lopez, Olivier
name: Berland, Håvard
Publisher: name: arXiv
Year: 2020
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: This article provides an overview of the current state of digital rock technology, with emphasis on industrial applications. We show how imaging and image analysis can be applied for rock typing and modeling of end-point saturations. Different methods to obtain a digital model of the pore space from pore scale images are presented, and the strengths and weaknesses of the different methods are discussed. We also show how imaging bridges the different subjects of geology, petrophysics and reservoir simulations, by being a common denominator for results in all these subjects. Network modeling is compared to direct simulations on grid models, and their respective strengths are discussed. Finally we present an example of digital rock technology applied to a sandstone oil reservoir. Results from digital rock modeling are compared to results from traditional laboratory experiments. We highlight the mutual benefits from conducting both traditional experiments and digital rock modeling.
description: 36 pages, 18 figures
Stochastic Particle Acceleration in Parallel Relativistic Shocks
Creators: name: Virtanen, Joni J. P.
name: Vainio, Rami
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present results of test-particle simulations on both the first- and the second-order Fermi acceleration for relativistic parallel shock waves. Our studies suggest that the role of the second-order mechanism in the turbulent downstream of a relativistic shock may have been underestimated in the past, and that the stochastic mechanism may have significant effects on the form of the particle spectra and its time evolution.
description: Poster at "The XXII Texas Symposium on Relativistic Astrophysics", Stanford, USA, December 2004, (TSRA04), 6 pages, LaTeX, 5 ps/eps figures
Optimal Control of Spreading Biological Invasions: For How Long Should We Apply the Brake?
Creators: name: Carrasco, Luis Roman
name: MacLeod, Alan
name: Knight, John D.
name: Baker, Richard
name: Mumford, John D.
name: Carrasco, Luis Roman
name: MacLeod, Alan
name: Knight, John D.
name: Baker, Richard
name: Mumford, John D.
Publisher: name: Unknown
Year: 2009
Subjects: subject: Risk and Uncertainty
subject: barrier zone
subject: biosecurity
subject: dynamic optimization
subject: eradication
subject: Leptinotarsa decemlineata
subject: pest risk analysis
subject: reaction-diffusion.

description: Identifying the optimal switching point between different invasive alien species (IAS) management policies is a very complex task and policy makers are in need of modelling tools to assist them. In this paper we develop an optimal control bioeconomic model to estimate the type of optimal policy and switching point of control efforts against a spreading IAS. We apply the models to the case study of Colorado potato beetle in the UK. The results demonstrate that eradication is optimal for small initial sizes of invasion at discovery. High capacity of the agency to reduce spread velocity for several years leads to smaller total overall costs of invasion and makes eradication optimal for larger sizes of initial invasion. In many cases, it is optimal to switch from control to acceptance within the time horizon. The switching point depends on the capacity of the agency, initial size of invasion, spread velocity of the IAS and the ratio of unit cost of damage and removal. We encourage the integration of the dispersal patterns of the invader and the geometry of the invasion in the theoretical development of the economics of IAS invasion management.
Selection criteria for English as a second language materials with special reference to the adult Bangladeshi and Gujarati communities in Loughborough
Creators: name: Tabona, Michael J.
Publisher: name: Loughborough University
Year: 2021
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Selection criteria for English as a second language materials with special reference to the adult Bangladeshi and Gujarati communities in Loughborough
Pygmy dipole strength close to particle-separation energies - the case of the Mo isotopes
Creators: name: Rusev, Gencho
name: Grosse, Eckart
name: Erhard, Martin
name: Junghans, Arnd
name: Kosev, Krasimir
name: Schilling, Klaus-Dieter
name: Schwengner, Ronald
name: Wagner, Andreas
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The distribution of electromagnetic dipole strength in 92, 98, 100 Mo has been investigated by photon scattering using bremsstrahlung from the new ELBE facility. The experimental data for well separated nuclear resonances indicate a transition from a regular to a chaotic behaviour above 4 MeV of excitation energy. As the strength distributions follow a Porter-Thomas distribution much of the dipole strength is found in weak and in unresolved resonances appearing as fluctuating cross section. An analysis of this quasi-continuum - here applied to nuclear resonance fluorescence in a novel way - delivers dipole strength functions, which are combining smoothly to those obtained from (g,n)-data. Enhancements at 6.5 MeV and at ~9 MeV are linked to the pygmy dipole resonances postulated to occur in heavy nuclei.
description: 6 pages, 5 figures, proceedings Nuclear Physics in Astrophysics II, May 16-20, Debrecen, Hungary. The original publication is available at www.eurphysj.org
Productivity and the Determinants of Efficiency in Irish Agriculture (1996-2006)
Creators: name: Carroll, J.
name: Greene, S.
name: O'Donoghue, Cathal
name: Newman, Carol F.
name: Thorne, Fiona S.
name: Carroll, J.
name: Greene, S.
name: O'Donoghue, Cathal
name: Newman, Carol F.
name: Thorne, Fiona S.
Publisher: name: Unknown
Year: 2009
Subjects: Production Economics

description: The competitiveness and productivity of Irish agriculture has been at the forefront of debate in recent times given successive and impending changes to agricultural policy. This paper examines the trend in total factor productivity in Irish agriculture over the recent past and explores the effects of specific variables on relative efficiency levels. The findings of this research have shown that productivity growth was highest in the Cattle Rearing sector followed by the Dairy, Cattle Finishing, Sheep and Cereals sectors during the period 1996 to 2006. The research has also shown that efficiency levels are, in general, positively correlated with extension use soil quality, the overall size of the farm, the level of intensification and the level of specialisation. The use of artificial insemination was also positively correlated with efficiency in the Dairy sector
Rotating black holes in valid vector-tensor theories after GW170817
Creators: name: Ajith, Siddarth
name: Saffer, Alexander
name: Yagi, Kent
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Vector-tensor theories beyond General Relativity have widely been studied in the context of ultraviolet completion of gravity, endowing a mass to the graviton and explaining dark energy phenomena. We here construct rotating black hole solutions in vector-tensor theories valid after the binary neutron star merger event GW170817 that placed very stringent bound on the propagation speed of gravitational waves away from the speed of light. Such valid vector-tensor theories are constructed by performing a generic conformal transformation to Einstein-Maxwell theory, and the new rotating black hole solutions are constructed by applying the same conformal transformation to the Kerr-Newman solution. These theories fall outside of beyond generalized Proca theories but are within an extended class of vector-tensor theories that satisfy a degenerate condition to eliminate instability modes and are thus healthy. We find that such conformal Kerr-Newman solutions preserve the location of the singularities, event horizons and ergoregion boundary from Kerr-Newman, as well as the multipole moments and the Petrov type. On the other hand, the Hamilton-Jacobi equation is no longer separable, suggesting that the Carter-like constant does not exist in this solution. The standard Newman-Janis algorithm also does not work to construct the new solutions. We also compute the epicyclic frequencies, the location of the innermost stable circular orbits, and the Schwarzschild precession and apply the latter to the recent GRAVITY measurement to place bounds on the deviations away from Kerr-Newman for Sgr A$^*$.
description: 12 pages, 3 figures
Response of a Fermi gas to time-dependent perturbations: Riemann-Hilbert approach at non-zero temperatures
Creators: name: Braunecker, Bernd
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We provide an exact finite temperature extension to the recently developed Riemann-Hilbert approach for the calculation of response functions in nonadiabatically perturbed (multi-channel) Fermi gases. We give a precise definition of the finite temperature Riemann-Hilbert problem and show that it is equivalent to a zero temperature problem. Using this equivalence, we discuss the solution of the nonequilibrium Fermi-edge singularity problem at finite temperatures.
description: 10 pages, 2 figures; 2 appendices added, a few modifications in the text, typos corrected; published in Phys. Rev. B
Different Fates of Young Star Clusters After Gas Expulsion
Creators: name: Pang, Xiaoying
name: Li, Yuqian
name: Tang, Shih-Yun
name: Pasquato, Mario
name: Kouwenhoven, M. B. N.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We identify structures of the young star cluster NGC 2232 in the solar neighborhood (323.0 pc), and a newly discovered star cluster LP 2439 (289.1 pc). Member candidates are identified using the Gaia DR2 sky position, parallax and proper motion data, by an unsupervised machine learning method, \textsc{StarGO}. Member contamination from the Galactic disk is further removed using the color magnitude diagram. The four identified groups (NGC 2232, LP 2439 and two filamentary structures) of stars are coeval with an age of 25 Myr and were likely formed in the same giant molecular cloud. We correct the distance asymmetry from the parallax error with a Bayesian method. The 3D morphology shows the two spherical distributions of clusters NGC 2232 and LP 2439. Two filamentary structures are spatially and kinematically connected to NGC 2232. Both NGC 2232 and LP 2439 are expanding. The expansion is more significant in LP 2439, generating a loose spatial distribution with shallow volume number and mass density profiles. The expansion is suggested to be mainly driven by gas expulsion. NGC 2232, with 73~percent of the cluster mass bound, is currently experiencing a process of re-virialization, However, LP 2439, with 52 percent cluster mass being unbound, may fully dissolve in the near future. The different survivability traces different dynamical states of NGC 2232 and LP 2439 prior to the onset of gas expulsion. NGC 2232 may have been substructured and subvirial, while LP 2439 may either have been virial/supervirial, or it has experienced a much faster rate of gas removal.
description: 14 pages, 6 figures, Accepted by ApJL
Mahler measure of some n-variable polynomial families
Creators: name: Lalin, Matilde N.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11C08, 11M06 (Primary), 11G55, 11B68 (Secondary)

description: The Mahler measures of some n-variable polynomial families are given in terms of special values of the Riemann zeta function and a Dirichlet L-series, generalizing the results of \cite{L}. The technique introduced in this work also motivates certain identities among Bernoulli numbers and symmetric functions.
Monogamy and trade-off relations for correlated quantum coherence
Creators: name: Basso, Marcos L. W.
name: Maziero, Jonas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: One of the fundamental differences between classical and quantum mechanics is in the ways correlations can be distributed among the many parties that compose a system. While classical correlations can be shared among many subsystems, in general quantum correlations cannot be freely shared. This unique property is known as monogamy of quantum correlations. In this work, we study the monogamy properties of the correlated coherence for the l 1 -norm and relative entropy measures of coherence. For the l 1 -norm the correlated coherence is monogamous for a particular class of quantum states. For the relative entropy of coherence, and using maximally mixed state as the reference incoherent state, we show that the correlated coherence is monogamous for tripartite pure quantum systems.
description: 9 pages, 2 figures
Flood risk – Prevention and Impact on Agricultural Lands
Creators: name: Wagner, Klaus
name: Neuwirth, Julia
name: Janetschek, Hubert
name: Wagner, Klaus
name: Neuwirth, Julia
name: Janetschek, Hubert
Publisher: name: Unknown
Year: 2009
Subjects: subject: Resource /Energy Economics and Policy
subject: Agriculture
subject: Multifunctionality
subject: Sustainability
subject: Flood Risk

description: Recent extreme weather events have resulted in an ongoing discussion on the issues of land use and compensation payments within Austrian agriculture. Building on a functional evaluation system for agricultural lands as developed within the Interreg IIIB project “ILUP”, the national project “Agriculture and Flooding” has as its goal to classify the flood-protection contribution and flood sensitivity of agricultural lands. This, in turn, enables the recommendation of targeted measures for potentially improving flood situations, as well as an estimate of their implementation costs. In addition to the digital soil map, other fundamental sources used for the project are the digital flood risk map, IACS land-use data and works by the Institute for Land and Water Management Research. Reference values and marginal returns sourced from the Federal Institute of Agricultural Economics also flow into the cost estimates for the recommended combination. The results will contribute to an understanding of the multifunctionality of agricultural lands and to the setting of priorities on a regional scale regarding packaged flood-prevention and damage-minimization. However, the results at hand can only serve as one step toward regional flood protection projects, whose development will require the cooperation of all interest groups.
FAVQULODDA HOLATLARDA INSON HUQUQLARINI CHEKLASHNING NAZARIY-HUQUQIY MASALALARI
Creators: name: Bobonazarov, Muhammadjon
Publisher: name: Zenodo
Year: 2024

description: Ushbu tezisda favqulodda holatlarda inson huquqlarini cheklashning asoslari muhokama qilingan. Shuningdek, inson huqulari eng oliy qadriyatligiga qaramasdan nima uchun ba’zi vaqtlarda cheklanishi va bu cheklovlar boshqa insonlarning huquqlariga zarar yetkazmaslik uchun qo’llanilishiga atforlicha to’xtalamiz.