cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Truly Online Paging with Locality of Reference
Creators: name: Fiat, Amos
name: Mendel, Manor
Publisher: name: arXiv
Year: 2006
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: The competitive analysis fails to model locality of reference in the online paging problem. To deal with it, Borodin et. al. introduced the access graph model, which attempts to capture the locality of reference. However, the access graph model has a number of troubling aspects. The access graph has to be known in advance to the paging algorithm and the memory required to represent the access graph itself may be very large. In this paper we present truly online strongly competitive paging algorithms in the access graph model that do not have any prior information on the access sequence. We present both deterministic and randomized algorithms. The algorithms need only O(k log n) bits of memory, where k is the number of page slots available and n is the size of the virtual address space. I.e., asymptotically no more memory than needed to store the virtual address translation table. We also observe that our algorithms adapt themselves to temporal changes in the locality of reference. We model temporal changes in the locality of reference by extending the access graph model to the so called extended access graph model, in which many vertices of the graph can correspond to the same virtual page. We define a measure for the rate of change in the locality of reference in G denoted by Delta(G). We then show our algorithms remain strongly competitive as long as Delta(G) >= (1+ epsilon)k, and no truly online algorithm can be strongly competitive on a class of extended access graphs that includes all graphs G with Delta(G) >= k- o(k).
description: 37 pages. Preliminary version appeared in FOCS '97
Absorption compensation in seismic data processing
Creators: name: Zhang, Changjun
Publisher: name: University of British Columbia
Year: 2009

description: As seismic waves propagate through the earth, the anelasticity of the medium will cause energy dissipation and waveform distortion. This phenomenon is refereed to as absorption attenuation. High resolution images require that the effects of absorption are understood and estimated. Estimated attenuation parameters can be used to improve the interpretation of seismograms. For these reasons, absorption is an important topic in seismic data processing. The absorptive property of a medium is described by a quality factor which describes the energy decay and determines a velocity dispersion relationship. The quality factor and the velocity govern the propagation of seismic energy in the earth. Velocities determine the arrival times of reflections and quality factors determine their frequency contents. Both of them can be estimated from common mid-point (CMP) gathers. Quality factors can be estimated from prestack common midpoint gathers, or a poststack single trace. By assuming that the amplitude spectrum of the seismic source signature may be modeled by that of a Ricker wavelet, an analytical relation between a quality factor and the seismic data peak frequency variation with time has been derived. This relation plays a central role in quality factor estimation problems. Tests on both synthetic and real data show that the analytical relationship can be used to extract correct quality factors whether the data are one-dimensional or two-dimensional. To remove the effect of absorption, conventionally, inverse Q filtering is used. The stability of inverse Q filtering is always affected by high frequency noise whether it is implemented in the time or the frequency domain. Formulating the absorption compensation as an inverse problem, and solving the inverse problem iteratively, the resolution of seismic data is upgraded step by step. The inverse scheme helps to overcome the instability problem which is a natural drawback of common inverse Q filtering. Absorption compensation can also be considered as a part of the process of seismic data migration. Standard migration is the adjoint of forward modeling. High fidelity images can be obtained by using a least squares migration (LSM) scheme. Theoretical analysis shows that least squares migration is a promising way to implement migration and absorption compensation for a single processing step.
Is demagnetization an efficient optimization method?
Creators: name: Zapperi, S.
name: Colaiori, F.
name: Dante, L.
name: Basso, V.
name: Durin, G.
name: Magni, A.
name: Alava, M. J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Demagnetization, commonly employed to study ferromagnets, has been proposed as the basis for an optimization tool, a method to find the ground state of a disordered system. Here we present a detailed comparison between the ground state and the demagnetized state in the random field Ising model, combing exact results in $d=1$ and numerical solutions in $d=3$. We show that there are important differences between the two states that persist in the thermodynamic limit and thus conclude that AC demagnetization is not an efficient optimization method.
description: 2 pages, 1 figure
Dirac operator on the quantum fuzzy four-sphere $ S_{qF}^{4} $
Creators: name: Lotfizadeh, Mehdi
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The q-deformed fuzzy Dirac and chirality operators on quantum fuzzy four-sphere $ S^{4}_{qF} $. Using the q-deformed fuzzy Ginsparg-Wilson algebra, it has been studied the q-deformed fuzzy Dirac and chirality operators in instanton and no-instanton sector. Also, gauged Dirac and chirality operators in both cases have been constructed. It has been showed that In each step our results have correct commutative limit in the limit case when $ q\longrightarrow1 $ and noncommutative parameter $ l $ tends to infinity.
Evolution of Superconductivity in Electron-Doped Cuprates: Magneto-Raman Spectroscopy
Creators: name: Qazilbash, M. M.
name: Koitzsch, A.
name: Dennis, B. S.
name: Gozar, A.
name: Balci, Hamza
name: Kendziora, C. A.
name: Greene, R. L.
name: Blumberg, G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The electron-doped cuprates Pr_{2-x}Ce_xCuO_4 and Nd_{2-x}Ce_xCuO_4 have been studied by electronic Raman spectroscopy across the entire region of the superconducting (SC) phase diagram. The SC pairing strength is found to be consistent with a weak-coupling regime except in the under-doped region where we observe an in-gap collective mode at 4.5 k_{B}T_c while the maximum amplitude of the SC gap is ~8 k_{B}T_{c}. In the normal state, doped carriers divide into coherent quasi-particles (QPs) and carriers that remain incoherent. The coherent QPs mainly reside in the vicinity of (π/2, π/2) regions of the Brillouin zone (BZ). We find that only coherent QPs contribute to the superfluid density in the B_{2g} channel. The persistence of SC coherence peaks in the B_{2g} channel for all dopings implies that superconductivity is mainly governed by interactions between the hole-like coherent QPs in the vicinity of (π/2, π/2) regions of the BZ. We establish that superconductivity in the electron-doped cuprates occurs primarily due to pairing and condensation of hole-like carriers. We have also studied the excitations across the SC gap by Raman spectroscopy as a function of temperature (T) and magnetic field (H) for several different cerium dopings (x). Effective upper critical field lines H*_{c2}(T, x) at which the superfluid stiffness vanishes and H^{2Δ}_{c2}(T, x) at which the SC gap amplitude is suppressed by field have been determined; H^{2Δ}_{c2}(T, x) is larger than H*_{c2}(T, x) for all doping concentrations. The difference between the two quantities suggests the presence of phase fluctuations that increase for x< 0.15. It is found that the magnetic field suppresses the magnitude of the SC gap linearly at surprisingly small fields.
description: 13 pages, 8 figures; submitted to Phys. Rev. B
Asymptotics for moist deep convection I: Refined scalings and self-sustaining updrafts
Creators: name: Hittmeir, Sabine
name: Klein, Rupert
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Moist processes are among the most important drivers of atmospheric dynamics,and scale analysis and asymptotics are cornerstones of theoretical meteorology. Accounting for moist processes in systematic scale analyses therefore seems of considerable importance for the field. Klein & Majda (TCFD, 20, 525--552, (2006)) proposed a scaling regime for the incorporation of moist bulk microphysics closures in multiscale asymptotic analyses of tropical deep convection. This regime is refined here to allow for mixtures of ideal gases and to establish consistency with a more general multiple scales modelling framework for atmospheric flows. Deep narrow updrafts, so-called "hot towers", constitute principal building blocks of larger scale storm systems. They are analysed here in a sample application of the new scaling regime. A single quasi-onedimensional columnar cloud is considered on the vertical advective (or tower life cycle) time scale. The refined asymptotic scaling regime is essential for this example as it reveals a new mechanism for the self-sustainance of such updrafts. Even for strongly positive convectively available potential energy (CAPE), a vertical balance of buoyancy forces is found in the presence of precipitation. This balance induces a diagnostic equation for the vertical velocity and it is responsible for the generation of self-sustained balanced updrafts. The time dependent updraft structure is encoded in a Hamilton-Jacobi equation for the precipitation mixing ratio. Numerical solutions of this equation suggest that the self-sustained updrafts may strongly enhance hot tower life cycles.
Measuring the Contribution of Water and Green Space Amenities to Housing Values: An Application and Comparison of Spatially-weighted Hedonic Models
Creators: name: Cho, Seong-Hoon
name: Bowker, James Michael
name: Park, William M.
name: Cho, Seong-Hoon
name: Bowker, James Michael
name: Park, William M.
Publisher: name: Unknown
Year: 2006
Subjects: Land Economics/Use

description: This study estimates the influence of proximity to water bodies and park amenities on residential housing values in Knox County, Tennessee, using the hedonic price approach. Values for proximity to water bodies and parks are first estimated globally with a standard ordinary least square (OLS) model. A locally weighted regression model is then employed to investigate spatial non-stationarity and generate local estimates for individual sources of each amenity. The local model is able to capture the variability in the quality of water bodies and parks across the county, something a conventional hedonic model using OLS cannot do.
Valuing Farm Financial Information
Creators: name: Marcellino, Dana M.
name: Wilson, Christine A.
name: Marcellino, Dana M.
name: Wilson, Christine A.
Publisher: name: Unknown
Year: 2006
Subjects: Farm Management

description: Despite the merits of good farm record keeping, little is known about the value farmers place on their farm financial records. This study uses a willingness-to-accept experimental second price auction to elicit such values from farmers. Results indicate farm records are extremely valuable and that some diversity in values is explained by the characteristics of the records and farmers. We find that experimental auctions can be used to elicit values for extremely high-valued goods, and we demonstrate how they can be used to value a complex good comprised of many sub-components.
On the 3-distortion of a path
Creators: name: Dehornoy, Pierre
Publisher: name: arXiv
Year: 2006
Subjects: subject: Computational Geometry (cs.CG)
subject: FOS: Computer and information sciences

description: We prove that, when a path of length n is embedded in R^2, the 3-distortion is an Omega(n^{1/2}), and that, when embedded in R^d, the 3-distortion is an O(n^{1/d-1}).
FEM Modelling of 3D Photonic Crystals and Photonic Crystal Waveguides
Creators: name: Burger, S.
name: Klose, R.
name: Schaedle, A.
name: Schmidt, F.
name: Zschiedrich, L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Optics (physics.optics)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We present a finite-element simulation tool for calculating light fields in 3D nano-optical devices. This allows to solve challenging problems on a standard personal computer. We present solutions to eigenvalue problems, like Bloch-type eigenvalues in photonic crystals and photonic crystal waveguides, and to scattering problems, like the transmission through finite photonic crystals. The discretization is based on unstructured tetrahedral grids with an adaptive grid refinement controlled and steered by an error-estimator. As ansatz functions we use higher order, vectorial elements (Nedelec, edge elements). For a fast convergence of the solution we make use of advanced multi-grid algorithms adapted for the vectorial Maxwell's equations.
description: 11 pages, including 9 figures
Original Research By Young Twinkle Students (ORBYTS): Ephemeris Refinement of Transiting Exoplanets II
Creators: name: Edwards, Billy
name: Anisman, Lara
name: Changeat, Quentin
name: Morvan, Mario
name: Wright, Sam
name: Yip, Kai Hou
name: Abdullahi, Amiira
name: Ali, Jesmin
name: Amofa, Clarry
name: Antoniou, Antony
name: Arzouni, Shahad
name: Bradley, Noeka
name: Campana, Dayanara
name: Chavda, Nandini
name: Creswell, Jessy
name: Gazieva, Neliman
name: Gudgeon-Sidelnikova, Emily
name: Guha, Pratap
name: Hayden, Ella
name: Huda, Mohammed
name: Hussein, Hana
name: Ibrahim, Ayub
name: Ike, Chika
name: Jama, Salma
name: Joshi, Bhavya
name: Kc, Schet
name: Keenan, Paris
name: Kelly-Smith, Charlie
name: Khan, Aziza
name: Korodimos, George
name: Liang, Jiale
name: Nogueira, Guilherme Luis
name: Martey-Botchway, Neil
name: Masruri, Asan
name: Miyamaru, Osuke
name: Moalin, Ismail
name: Monteiro, Fabiana
name: Nawrocka, Adrianna
name: Musa, Sebri
name: Nelson, Lilith
name: Ogunjuyigbe, Isabel
name: Patel, Jaymit
name: Pereira, Joesph
name: Ramsey, James
name: Rasoul, Billnd
name: Reetsong, Tumo
name: Saeed, Haad
name: Sander, Cameron
name: Sanetra, Matthew
name: Tarabe, Zainab
name: Tareke, Milcah
name: Tasneem, Nazifa
name: Teo, Meigan
name: Uddin, Asiyah
name: Upadhyay, Kanvi
name: Yanakiev, Kaloyan
name: Yatingiri, Deepakgiri
name: Dunn, William
name: Kokori, Anatasia
name: Tsiaras, Angelos
name: Gomez, Edward
name: Tinetti, Giovanna
name: Tennyson, Jonathan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: We report follow-up observations of four transiting exoplanets, TRES-2b, HAT-P-22b, HAT-P-36b and XO-2b, as part of the Original Research By Young Twinkle Students (ORBYTS) programme. These observations were taken using the Las Cumbres Observatory Global Telescope Network's (LCOGT) robotic 0.4 m telescopes and were analysed using the HOlomon Photometric Software (HOPS). Such observations are key for ensuring accurate transit times for upcoming telescopes, such as the James Webb Space Telescope (JWST), Twinkle and Ariel, which may seek to characterise the atmospheres of these planets. The data have been uploaded to ExoClock and a significant portion of this work has been completed by secondary school students in London.
description: Published in the Research Notes of the American Astronomical Society (RNAAS)
Why is the Zel'dovich Approximation so Accurate?
Creators: name: Yoshisato, A.
name: Morikawa, M.
name: Gouda, N.
name: Mouri, H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Why does the Zel'dovich approximation (ZA) work well to describe gravitational collapse in the universe? This problem is examined by focusing on its dependence on the dimensionality of the collapse. The ZA is known to be exact for a one-dimensional collapse. We show that the ZA becomes progressively more accurate in the order of three-, two-, and one-dimensional collapses. Furthermore, using models for spheroidal collapse, we show that the ZA remains accurate in all collapses, which become progressively lower dimensional with the passage of time. That is, the ZA is accurate because the essence of the gravitational collapse is incorporated in the ZA.
description: 16 pages, to appear in The Astrophysical Journal
Integrating the Structural Auction Approach and Traditional Measures of Market Power
Creators: name: Tostao, Emilio
name: Chung, Chanjin
name: Brorsen, B. Wade
name: Tostao, Emilio
name: Chung, Chanjin
name: Brorsen, B. Wade
Publisher: name: Unknown
Year: 2006
Subjects: subject: Marketing
subject: FOS: Economics and business

description: This study asks the question, what is the relationship between traditional models of market power and structural auction models? An encompassing model is derived that considers both price markdowns due to bid shading during an auction and price markdowns at the industry-level due to imperfect competition. Data from a cattle procurement experimental market is used to compare the appropriateness of the two alternative theories. Regression results show that while the number of firms is more important than the number of bidders on lot of cattle in explaining pricing behavior in the game, the number of bidders does contain some unique information and should be included in the model. Both the traditional NEIO and structural auction approaches overestimated the true markdowns possibly due to failure to account for the winner's curse.
Additional file 1 of “Public health is global”: examining Indian stakeholders’ perspectives on Global Health education
Creators: name: Sawleshwarkar, Shailendra
name: Zodpey, Sanjay
name: Negin, Joel
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: Cancer
subject: Science Policy

description: Additional file 1. Interview guide for faculty and other stakeholders.
Investigation of scaling properties of hysteresis in Finemet thin films
Creators: name: Santi, L
name: Dorneles, L. S.
name: Sommer, R. L.
name: Colaiori, F.
name: Zapperi, S.
name: Magni, A.
name: Durin, G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the behavior of hysteresis loops in Finemet Fe$_{73.5}$Cu$_1$Nb$_3$Si$_{18.5}$B$_4$ thin films by using a fluxometric setup based on a couple of well compensated pickup coils. The presence of scaling laws of the hysteresis area is investigated as a function of the amplitude and frequency of the applied field, considering sample thickness from about 20 nm to 5 $μ$m. We do not observe any scaling predicted by theoretical models, while dynamic loops show a logarithmic dependence on the frequency.
description: 2 pages, 2 figures
The Effects of the Spatial Distribution of Grocery Stores on Food Prices on Low Income Neighborhoods
Creators: name: Jetter, Karen M.
name: Crespi, John M.
name: Cassady, Diana
name: Jetter, Karen M.
name: Crespi, John M.
name: Cassady, Diana
Publisher: name: Unknown
Year: 2006
Subjects: Agribusiness

description: This study examines how the spatial distribution of grocery stores affects food prices charged in neighborhoods with different median incomes. Studies have shown that low-income neighborhoods often have fewer grocery stores, smaller grocery stores and have higher prices for a standard market basket of food than higher income neighborhoods. In addition, a greater concentration of firms has reduced the number of companies operating supermarkets, reducing competition. Smaller stores and greater concentration have both been shown to cause higher prices in food retail outlets. However, the impact of the number and distribution of stores throughout a neighborhood on food prices has not yet been studied.
Multipartite Entanglement Measure
Creators: name: Yu, Chang-shui
name: Song, He-shan
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, we generalize the residual entanglement to the case of multipartite states in arbitrary dimensions by making use of a new method. Through the introduction of a special entanglement measure, the residual entanglement of mixed states takes on a form that is more elegant than that in Ref.[7] (Phys.Rev.A 61 (2000) 052306) . The result obtained in this paper is different from the previous one given in Ref.[8] (Phys.Rev.A 63 (2000) 044301). Several examples demonstrate that our present result is a good measurement of the multipartite entanglement. Furthermore, the original residual entanglement is a special case of our result.
description: 5 pages
Additional file 10 of Diversification and hybrid incompatibility in auto-pseudogamous species of Mesorhabditis nematodes
Creators: name: Launay, Caroline
name: Marie-Anne Félix
name: Dieng, Joris
name: Delattre, Marie
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology

description: Additional file 10: Figure S4. Phenotypes of hybrid embryos between different species pairs. Still images from DIC recordings showing hybrid embryos from crosses of M. belari and M. okuensis, or M. belari and M. microbursaris. All embryos are blocked before the first cell division, after pronuclear envelope breakdown. Scale bar is 10 μm.
Dirac's Classical-Quantum Analogy for the Harmonic Oscillator: Classical Aspects in Thermal Radiation Including Zero-Point Radiation
Creators: name: Boyer, Timothy H.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Dirac's Poisson-bracket-to-commutator analogy for the transition from classical to quantum mechanics assures that for many systems, the classical and quantum systems share the same algebraic structure. The quantum side of the analogy (involving operators on Hilbert space with commutators scaled by Planck's constant $\hbar$) not only gives the algebraic structure but also dictates the average values of physical quantities in the quantum ground state. On the other hand, the Poisson brackets of nonrelativistic mechanics, which give only the classical canonical transformations, do not give any values for physical quantities. Rather, one must go outside nonrelativistic classical mechanics in order to obtain a fundamental phase space distribution for classical physics. We assume that the values of physical quantities in classical theory at any temperature depend on the phase space probability distribution which arises from thermal radiation equilibrium including classical zero-point radiation with the scale set by Planck's constant $\hbar$. All mechanical systems in thermal radiation will inherit the constant $\hbar$ from thermal radiation. Here we note the connections between classical and quantum theories (agreement and contrasts) at all temperatures for the harmonic oscillator in one and three spatial dimensions.
description: 23 pages
LiDAR-Based Localization for Formation Control of Multi-Robot Systems
Creators: name: Recker, Tobias
name: Zhou, Bin
name: Stüde, Marvin
name: Wielitzka, Mark
name: Ortmaier, Tobias
name: Raatz, Annika
Publisher: name: Cham : Springer International Publishing
Year: 2022
Subjects: subject: Multi-robot systems
subject: Formation control
subject: Relative localization
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Controlling the formation of several mobile robots allows for the connection of these robots to a larger virtual unit. This enables the group of mobile robots to carry out tasks that a single robot could not perform. In order to control all robots like a unit, a formation controller is required, the accuracy of which determines the performance of the group. As shown in various publications and our previous work, the accuracy and control performance of this controller depends heavily on the quality of the localization of the individual robots in the formation, which itself depends on the ability of the robots to locate themselves within a map. Other errors are caused by inaccuracies in the map. To avoid any errors related to the map or external sensors, we plan to calculate the relative positions and velocities directly from the LiDAR data. To do this, we designed an algorithm which uses the LiDAR data to detect the outline of individual robots. Based on this detection, we estimate the robots pose and combine this estimate with the odometry to improve the accuracy. Lastly, we perform a qualitative evaluation of the algorithm using a Faro laser tracker in a realistic indoor environment, showing benefits in localization accuracy for environments with a low density of landmarks.
[Brev til DKNVS]
Creators: name: Universitetet I Christiania
name: Det Kongelige Norske Videnskabers Selskab (DKNVS)
Publisher: name: Unknown
Year: 1853

description: Det svenske utenriksdepartementet har fått en forespørsel fra et naturhistorisk selskap i Virginia, "The Logan institute", om hvilke selskap og vitenskapsmenn som sysselsetter seg med naturvitenskapelig forskning
Variety, Agricultural Trade, and Income
Creators: name: Mitchell, Lorraine
name: Mitchell, Lorraine
Publisher: name: Unknown
Year: 2006
Subjects: Consumer/Household Economics

description: This paper looks at a sample of middle income countries to determine 1) what different measures researchers can use to gauge demand for variety, and 2) whether taste for variety increases with income according to these measures. The goal of the research is to learn the stylized facts regarding the desire for variety as reflected by diet and by trading behavior. The next section briefly discusses empirical and theoretical work on the demand for variety, whether that demand increases with income, and the demand for variety in traded goods. The following section discusses measures of variety and tests of the relationship of variety to income. The following sections discuss the results of applying those measures to countries and testing their relationship to income.
Correlation between Geometric Component Properties and Physical Parameters of an Aerodynamic Feeding System
Creators: name: Kolditz, Torge
name: Wolf, Mirco
name: Raatz, Annika
Publisher: name: Berlin : Springer Vieweg
Year: 2020
Subjects: subject: Design of Experiments
subject: Genetic Algorithm
subject: Aerodynamic Feeding
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: In previous research, an aerodynamic feeding system was developed, which autonomously adapts to different components by using a genetic algorithm that controls the physical parameters of the system (e.g. angle of inclination, nozzle pressure). The algorithm starts with two individuals with random values, generated within the boundaries of the parameters set by the user. Due to this, the setting time - the time that passes until a satisfactory orientation rate is reached - is hard to predict. The aim of this work is to identify basic interactions of geometric component properties with the physical parameters of the aerodynamic feeding system to determine in which areas of the workspace a satisfactory solution can be expected. By doing so, the initial population of the genetic algorithm can be generated based on certain geometric properties and would therefore no longer be random, presumably reducing setting time. To identify interactions of component properties and system parameters, exemplary components were developed. They represent relevant single properties that have significant impact on the aerodynamic orientation process. These components were then fed into the aerodynamic orientation process and their behavior was documented. To identify correlations between certain geometric properties and physical parameters of the feeding system, the tests were planned and carried out using Design of Experiments methods. The results of the tests were also used to determine the direct interrelations of said properties and the suitability for aerodynamic orientation.
Excitations in the spin-1 trimer chain compound CaNi3P4O14: gapped dispersive spinwaves to gapless magnetic excitations
Creators: name: Bera, A. K.
name: Yusuf, S. M.
name: Adroja, D. T.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Magnetic excitations and the spin Hamiltonian of the spin-1 J1-J1-J2 trimer chain compound CaNi3P4O14 have been investigated by inelastic neutron scattering. Experimental data reveal gapped dispersive spin wave excitations in the 3D long-range ordered magnetic state (TC = 16 K), and gapless magnetic excitations above the TC. Simulated magnetic excitations, by using the linear spin wave theory, for a model of coupled trimer spin-chains provide a good description of the observed experimental data. The analysis reveals both ferromagnetic J1 and J2 interactions within the chains, and an antiferromagnetic interchain interaction J3 between chains. The strengths of the J1 and J2 are found to be closer (J2/J1 ~ 0.81), and J3 is determined to be weaker (J3/ J1 ~ 0.69), which is consistent with the spin chain type crystal structure. Presence of a weak single-ion-anisotropy (D/J=0.19) is also revealed. The strengths and signs of exchange interactions explain why the 1/3 magnetization is absent in the studied spin-1 compound CaNi3P4O14 in contrast to its S= 5/2 counterpart Mn based isostructural compound. The signs of the exchange interactions are in agreement with that obtained from the reported DFT calculations, whereas, their strengths are found to be significantly different. The relatively strong value of the J3 in CaNi3P4O14 gives a conventional 3D type magnetic ordering below the TC, however, retains its 1D character above the TC. The present experimental study also reveals a sharp change of single-ion anisotropy across the TC indicating that the stability of the 3D magnetic ordering in CaNi3P4O14 is ascribed to the local magnetic anisotropy in addition to interchain interactions. The present study divulges the importance of full knowledge of the exchange interactions in trimer spin chain compounds to understand their exotic magnetic properties, such as 1/3 magnetization plateau.
description: 23 pages, 8 figures
GETTING THE MOST FOR OUR MONEY IN FARMLAND PRESERVATION
Creators: name: Horowitz, John K.
name: Lynch, Lori
name: Horowitz, John K.
name: Lynch, Lori
Publisher: name: Unknown
Year: 2003
Subjects: Agricultural and Food Policy

description: This paper looks at the design and operation of the main program in Maryland, the Maryland Agricultural Land Preservation Fund (MALPF). We examine the features of the program in comparison to possible alternative designs. Our broader purpose is to examine the nature of farmland preservation and the implications for how to best design farmland preservation programs.
Incorporating Memory Effects in Phase Separation Processes
Creators: name: Koide, T.
name: Krein, G.
name: Ramos, Rudnei O.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We consider the modification of the Cahn-Hilliard equation when a time delay process through a memory function is taken into account. We then study the process of spinodal decomposition in fast phase transitions associated with a conserved order parameter. Finite-time memory effects are seen to affect the dynamics of phase transition at short times and have the effect of delaying, in a significant way, the process of rapid growth of the order parameter that follows a quench into the spinodal region. These effects are important in several systems characterized by fast processes, like nonequilibrium dynamics in the early universe and in relativistic heavy-ion collisions.
description: 5 pages, 2 eps figures. Version in press Phys. Lett. B
Additional file 1 of Exploring links between resilience and the macro-level development of healthcare regulation- a Norwegian case study
Creators: name: Øyri, Sina Furnes
name: Braut, Geir Sverre
name: Macrae, Carl
name: Wiig, Siri
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Marine Biology
subject: Science Policy

description: Additional file 1. “Interview guide”. A semi-structured interview guide based on theoretical perspectives on resilience and risk regulation regimes and based on information retrieved from the documents. The topics included: rationale, experiences of stakeholder involvement and information processes, expectations regarding implementation and capacity for regulatory flexibility.
Radio Emission by Particles due to Pulsar Spin
Creators: name: Thomas, R. M. C.
name: Gangadhara, R. T.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a relativistic model for the motion of charged particles in rotating magnetic field lines projected on to a plane perpendicular to the rotation axis. By making an approximation that the projected field lines are straight, an analytical expression is obtained for the particle trajectory. The motive behind developing this model is to elucidate some of the effects of rotation in pulsar profiles. There is a significant contribution to the curvature of particle trajectory due to the rotation of pulsar, which is in addition to the inherent curvature of the field lines. The asymmetry in the observed pulse shapes can be explained by considering the aberration-retardation effects. The single sign circular polarization that has been observed in many pulsars, might be due to the relative orientation of sight line with respect to the particle trajectory plane.
description: 19 pages, 6 figues. Submitted to Astronomy and Astrophysics
[Brev til DKNVS]
Creators: name: Tellefsen, Johan Christian
name: Det Kongelige Norske Videnskabers Selskab (DKNVS)
Publisher: name: Unknown
Year: 1853

description: Vedr. de tre medaljene fra Hartmann
description: Se j.nr. 1853:066. Polydoc nr. 1: 3833. Polydoc nr. 2: 2927.
Diffraction of a Bose-Einstein condensate from a Magnetic Lattice on a Micro Chip
Creators: name: Guenther, A.
name: Kraft, S.
name: Kemmler, M.
name: Koelle, D.
name: Kleiner, R.
name: Zimmermann, C.
name: Fortagh, J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We experimentally study the diffraction of a Bose-Einstein condensate from a magnetic lattice, realized by a set of 372 parallel gold conductors which are micro fabricated on a silicon substrate. The conductors generate a periodic potential for the atoms with a lattice constant of 4 microns. After exposing the condensate to the lattice for several milliseconds we observe diffraction up to 5th order by standard time of flight imaging techniques. The experimental data can be quantitatively interpreted with a simple phase imprinting model. The demonstrated diffraction grating offers promising perspectives for the construction of an integrated atom interferometer.
description: 4 pages, 4 figures
Additional file 1 of Elucidating the fate of nanoparticles among key cell components of the tumor microenvironment for promoting cancer nanotechnology
Creators: name: Bromma, Kyle
name: Bannister, Aaron
name: Kowalewski, Antonia
name: Cicon, Leah
name: Chithrani, Devika B.
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Hematology

description: Additional file 1: Supplementary Figures.
CINECA: Common Infrastructure for National Cohorts in Europe, Canada, and Africa - Kick Off Report
Creators: name: Keane, Thomas
name: Glass, Leslie
Publisher: name: Zenodo
Year: 2019
Subjects: Data discovery, Federated Human Data, Interoperability, Personalised Medicine

description: The CINECA consortium was formed in response to the EU call ‘Better Health and care, economic growth and sustainable health systems’ (H2020-SC1-BHC-2018-2020) with a proposal for an international flagship collaboration with Canada for human data storage, integration and sharing to enable personalised medicine approaches. CINECA proposes a federated cloud enabled infrastructure making population scale genomic and biomolecular data accessible across international borders, accelerating research, and improving the health of individuals across continents. CINECA will leverage international investment in human cohort studies from Europe, Canada, and Africa to deliver a paradigm shift of federated research and clinical applications. The CINECA consortium will create one of the largest cross-continental implementations of human genetic and phenotypic data federation and interoperability with a focus on common (complex) disease, one of the world’s most significant health burdens. The partners represent a unique combination of scientific excellence with experience of eleven diverse cohorts and scientific projects such as the European Genome-phenome Archive, CanDIG, and H3Africa.  The CINECA Kick off meeting was held on January 24th-25th 2019 at the Wellcome Genome Campus Conference Centre, Hinxton UK. The key objective of the meeting was to bring together consortium members to facilitate discussion on the project’s goals and action plan. The report focuses on an overview of the Work Packages as presented to the consortium (focusing on deliverables due in the first reporting period), the cohorts included in the project, and the decisions made by the Executive Board for actions to implement year 1 of the project.
CONSUMER RESPONSE TO COUNTRY-OF-ORIGIN LABELING PROGRAM IN THE CONTEXT OF HETEROGENOUS PREFERENCES
Creators: name: Loureiro, Maria L.
name: Umberger, Wendy J.
name: Loureiro, Maria L.
name: Umberger, Wendy J.
Publisher: name: Unknown
Year: 2003
Subjects: Consumer/Household Economics
Food Consumption/Nutrition/Food Safety

description: Consumer willingness to pay for a mandatory country-of-origin labeling program is assessed. A consumer survey was conducted during 2002 in several grocery stores in Boulder, Denver, and Fort Collins, Colorado. Econometric results indicate that surveyed consumers are willing to pay an average of $184 per household annually for a mandatory country-of-origin labeling program. Respondents were also willing to pay an average of $1.53 and $0.70 per pound more for steak and hamburger labeled as "U.S. Certified Steak" and "U.S. Certified Hamburger," which is equivalent to a 38% and 58%, respectively, over the initial given price.
Early Blindness Detection Based on Retinal Images Using Ensemble Learning
Creators: name: Sikder, Niloy
name: Chowdhury, Md. Sanaullah
name: Arif, Abu Shamim Mohammad
name: Nahid, Abdullah-Al
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Diabetic retinopathy (DR) is the primary cause of vision loss among grownup people around the world. In four out of five cases having diabetes for a prolonged period leads to DR. If detected early, more than 90 percent of the new DR occurrences can be prevented from turning into blindness through proper treatment. Despite having multiple treatment procedures available that are well capable to deal with DR, the negligence and failure of early detection cost most of the DR patients their precious eyesight. The recent developments in the field of Digital Image Processing (DIP) and Machine Learning (ML) have paved the way to use machines in this regard. The contemporary technologies allow us to develop devices capable of automatically detecting the condition of a persons eyes based on their retinal images. However, in practice, several factors hinder the quality of the captured images and impede the detection outcome. In this study, a novel early blind detection method has been proposed based on the color information extracted from retinal images using an ensemble learning algorithm. The method has been tested on a set of retinal images collected from people living in the rural areas of South Asia, which resulted in a 91 percent classification accuracy.
description: 6 pages, 22nd International Conference of Computer and Information Technology (ICCIT), 18-20 December, 2019
Characterization of a nucleotide binding domain associated with Neisserial iron transport
Creators: name: Lau, Gloria Hiu Yan
Publisher: name: University of British Columbia
Year: 2009

description: The ability for the pathogen Neisseria gonorrhoeae to sequester iron from sources such as transferrin from the human host plays an important role in initiating infection. The Neisseria! fbpABC operon encodes an ABC (ATP binding cassette) transporter proposed to function in transporting iron at the periplasm-to-cytosol level. The highly conserved ATP binding domain of these transporters typically utilizes the energy of ATP hydrolysis to pump substrates across the membrane against a concentration gradient. The goal of my project is to show that FbpC functions as a nucleotide binding domain for this iron transport system. First, the N. gonorrhoeae fbpC gene was successfully amplified and cloned into the pET28a expression vector. The resulting fusion protein (FbpC(his6)) of approximately 40kDa was overexpressed in Escherichia coli HMS174(DE3) cells and purified to near homogeneity by nickel-chelate affinity followed by anion-exchange chromatography. Isolated FbpC(his6) has intrinsic ATPase activity uncoupled from the iron transport process and displays a specific activity of approximately 0.5 μmol/min/mg, similar to that determined for the distantly related nucleotide binding domains HisP and MalK in their purified forms. An FbpC mutant, E164D, designed to be defective in ATP hydrolysis was produced, purified, and found to contain a ten-fold reduction in specific activity as compared to the wild-type. Purified FbpC(his6) was also covalently modified by 8-azido-[γ32P]ATP, and this interaction was shown to be specific by preincubation of reactions with unlabeled ATP. In conclusion, FbpC is a functional nucleotide binding domain capable of powering the iron transporter. [Scientific formulae used in this abstract could not be reproduced.]
A Broader Perspective on the GRB-SN Connection
Creators: name: Soderberg, A. M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Over the last few years our understanding of local Type Ibc supernovae and their connection to long-duration gamma-ray bursts has been revolutionized. Recent discoveries have shown that the emerging picture for core-collapse explosions is one of diversity. Compiling data from our dedicated radio survey of SNe Ibc and our comprehensive HST survey of GRB-SNe together with ground-based follow-up campaigns, I review our current understanding of the GRB-SN connection. In particular, I compare local SNe Ibc with GRB-SNe based on the following criteria: (1) the distribution of optical peak magnitudes which serve as a proxy for the mass of Nickel-56 produced in the explosion, (2) radio luminosity at early time (few days to weeks) which provides a measure of the energy coupled to on-axis relativistic ejecta, and (3) radio luminosity at late time (several years) which constrains the emission from GRB jets initially directed away from our line-of-sight. By focusing on these three points, I will describe the complex picture of stellar death that is emerging.
description: 6 pages, 3 figures. To appear in the proceedings of the 16th Annual October Astrophysics Conference in Maryland "Gamma Ray Bursts in the Swift Era", eds. S. Holt, N. Gehrels & J. Nousek
OFF-FARM WORK AND THE ECONOMIC IMPACT OF ADOPTING HERBICIDE-TOLERANT CROPS
Creators: name: Fernandez-Cornejo, Jorge
name: Hendricks, Chad
name: Fernandez-Cornejo, Jorge
name: Hendricks, Chad
Publisher: name: Unknown
Year: 2003
Subjects: Labor and Human Capital

description: This paper examines the hypothesis that farmers may be adopting herbicide-tolerant crops because of the simplicity and flexibility of weed control, freeing management time. We develop an econometric model to analyze the adoption of HT soybeans controlling for the effect of off-farm work and estimate it using 2000 survey data.
Real-time coupled-cluster approach for the cumulant Green's function
Creators: name: Vila, F. D.
name: Rehr, J. J.
name: Kas, J. J.
name: Kowalski, K.
name: Peng, B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Green's function methods within many-body perturbation theory provide a general framework for treating electronic correlations in excited states. Here we investigate the cumulant form of the one-electron Green's function based on the coupled-cluster equation of motion approach in an extension of our previous study. The approach yields a non-perturbative expression for the cumulant in terms of the solution to a set of coupled first order, non-linear differential equations. The method thereby adds non-linear corrections to traditional cumulant methods linear in the self energy. The approach is applied to the core-hole Green's function and illustrated for a number of small molecular systems. For these systems we find that the non-linear contributions lead to significant improvements both for quasiparticle properties such as core-level binding energies, as well as the satellites corresponding to inelastic losses observed in photoemission spectra.
description: This file includes both the main manuscript and the supplementary information