cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Supplemental text from Species-area and network-area relationships in host–helminth interactions
Creators: name: Dallas, Tad A
name: Jordano, Pedro
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: The scaling relationship observed between species richness and the geographical area sampled (i.e. the species-area relationship (SAR)) is a widely recognized macroecological relationship. Recently, this theory has been extended to trophic interactions, suggesting that geographical area may influence the structure of species interaction networks (i.e. network-area relationships (NARs)). Here, we use a global dataset of host–helminth parasite interactions to test existing predictions from macroecological theory. Scaling between single locations to the global host–helminth network by sequentially adding networks together, we find support that geographical area influences species richness and the number of species interactions in host–helminth networks. However, species-area slopes were larger for host species relative to their helminth parasites, counter to theoretical predictions. Lastly, host–helminth network modularity—capturing the tendency of the network to form into separate subcommunities—decreased with increasing area, also counter to theoretical predictions. Reconciling this disconnect between existing theory and observed SAR and NAR will provide insight into the spatial structuring of ecological networks, and help to refine theory to highlight the effects of network type, species distributional overlap, and the specificity of trophic interactions on NARs.
Fluctuation theory in the Boltzmann--Grad limit
Creators: name: Bodineau, Thierry
name: Gallagher, Isabelle
name: Saint-Raymond, Laure
name: Simonella, Sergio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: We develop a rigorous theory of hard-sphere dynamics in the kinetic regime, away from thermal equilibrium. In the low density limit, the empirical density obeys a law of large numbers and the dynamics is governed by the Boltzmann equation. Deviations from this behaviour are described by dynamical correlations, which can be fully characterized for short times. This provides both a fluctuating Boltzmann equation and large deviation asymptotics.
Chaotic States and Stochastic Integration in Quantum Systems
Creators: name: Belavkin, V. P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Quantum chaotic states over a noncommutative monoid, a unitalization of a noncommutative Ito algebra parametrizing a quantum stochastic Levy process, are described in terms of their infinitely divisible generating functionals over the monoid-valued processes on an atomless `space-time' set. A canonical decomposition of the logarithmic conditionally posive-definite generating functional is constructed in a pseudo-Euclidean space, given by a quadruple defining the monoid triangular operator representation and a cyclic zero pseudo-norm state in this space. It is shown that the exponential representation in the corresponding pseudo-Fock space yields the infinitely-divisible generating functional with respect to the exponential state vector, and its compression to the Fock space defines the cyclic infinitly-divisible representation associated with the Fock vacuum state. The structure of states on an arbitrary Ito algebra is studied with two canonical examples of quantum Wiener and Poisson states. A generalized quantum stochastic nonadapted multiple integral is explicitly defined in Fock scale, its continuity and quantum stochastic differentiability is proved. A unified non-adapted and functional quantum Ito formula is discovered and established both in weak and strong sense, and the multiplication formula on the exponential Ito algebra is found for the relatively bounded kernel-operators in Fock scale. The unitarity and projectivity properties of nonadapted quantum stochastic linear differential equations are studied, and their solution is constructed for the locally bounded nonadapted generators in terms of the chronological products in the underlying kernel algebra canonically represented by triangular operators in the pseudo-Fock space.
description: 63 pages. This is a translation for Russian Math. Surveys 47:1 (1992), 53--116 which includes corrections submitted by the author
HEDGING FEEDER STEERS AND HEIFERS IN THE CASH-SETTLED FEEDER CATTLE FUTURES MARKET
Creators: name: Shroeder, Ted C.
name: Mintert, James R.
name: Shroeder, Ted C.
name: Mintert, James R.
Publisher: name: Unknown
Year: 1988
Subjects: subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business

description: Recent changes in the feeder cattle futures contract specifications are expected to reduce hedging risk and may result in changes in optimal hedging levels. This study provides an estimate of feeder cattle hedge ratios associated with the new cash-settled feeder cattle futures contract and compares the levels of hedging risk present under the cash settled contract with the physical delivery contract. Hedging risks are compared for several weights of feeder steers and heifers and are analyzed across four market locations. Results indicate that hedging risk is generally, though not always, lower with cash settlement than under the physical delivery contract specifications.
Continuum limit of the Volterra model, separation of variables and non standard realizations of the Virasoro Poisson bracket
Creators: name: Babelon, Olivier
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The classical Volterra model, equipped with the Faddeev-Takhtadjan Poisson bracket provides a lattice version of the Virasoro algebra. The Volterra model being integrable, we can express the dynamical variables in terms of the so called separated variables. Taking the continuum limit of these formulae, we obtain the Virasoro generators written as determinants of infinite matrices, the elements of which are constructed with a set of points lying on an infinite genus Riemann surface. The coordinates of these points are separated variables for an infinite set of Poisson commuting quantities including $L\_0$. The scaling limit of the eigenvector can also be calculated explicitly, so that the associated Schroedinger equation is in fact exactly solvable.
description: Latex, 43 pages Synchronized with the to be published version
ACCUMULATION AND RENTAL BEHAVIOR IN THE MARKET FOR FARMLAND
Creators: name: Chambers, Robert G.
name: Phipps, Tim T.
name: Chambers, Robert G.
name: Phipps, Tim T.
Publisher: name: Unknown
Year: 1988
Subjects: Land Economics/Use

description: A farmer's choices of tenure and farm size result from a complex interplay of economic factors technology, entrepreneurial ability, and personal preferences. This paper examines the qualitative effects of these factors on tenure and farm size in a dynamic optimization framework. One implication of the theoretical model is that changes in technology should cause systematic differences to be observed between rates of return on farmland and rates earned on comparable long-term assets. This implication is supported by an empirical test.
Stress tensor for massive fields on flat spaces of spatial topology R^2\times{S^1}
Creators: name: Langlois, Paul
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We calculate the expectation values of the energy-momentum tensor T_{μν} for massive scalar and spinor fields, in the Minkowski-like vacuum states on the two flat spaces which are quotients of Minkowski space under the discrete isometries (t,x,y,z)\mapsto(t,x,y,z+2a) and (t,x,y,z)\mapsto(t,-x,-y,z+a). The results on the first space confirm the literature. The results on the second space are new. We note some qualitative differences between the massless and massive fields in the limits of large a and large x^2+y^2.
description: 9 pages, v2 minor presentational changes made, v3 replaced with published version (minor changes)
FACTORS AFFECTING FRESH POTATO PRICE IN SELECTED TERMINAL MARKETS
Creators: name: Goodwin, Harold L.
name: Fuller, Stephen W.
name: Capps, Oral
name: Asgill, Oladimagi W.
name: Goodwin, Harold L.
name: Fuller, Stephen W.
name: Capps, Oral
name: Asgill, Oladimagi W.
Publisher: name: Unknown
Year: 1988
Subjects: Crop Production/Industries
Demand and Price Analysis

description: Monthly, quarterly, and annual cross-sectional and time-series data for the period 1982-85 were analyzed to identify factors affecting terminal market price for four types of fresh potatoes. Results indicated that state of origin, terminal market package type, and season of marketing were significant quality variables affecting price. Price differences among potato types because of season of marketing and stocks of fall potatoes were evident. These results suggest that cultivar selection, cultural practices, planting and harvesting schedules, packaging, and market selection - factors which are ultimately controlled by growers and grower/shippers - can be utilized effectively as mechanisms to increase price and expand markets.
Additional file 1 of Identifying targets for antibiotic stewardship interventions through analysis of the antibiotic prescribing process in hospitals - a multicentre observational cohort study
Creators: name: Wathne, Jannicke Slettli
name: Skodvin, Brita
name: Esmita Charani
name: Harthug, Stig
name: Blix, Hege Salvesen
name: Nilsen, Roy M.
name: Kleppe, Lars Kåre Selland
name: Vukovic, Marta
name: Smith, Ingrid
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases
subject: 60506 Virology

description: Additional file 1: Table 1. Grouping of indication for treatment. Table 2. Overview of AWaRe categories with study modifications. Table 3. Evaluation of antimicrobial spectrum and categorization of change.
Assessment of various physiochemical treatments for the removal of dissolved and colloidal substances present in the TMP/Newsprint white waters and fungal enzymatic treated white water
Creators: name: Soong, George
Publisher: name: University of British Columbia
Year: 2009

description: This study has assessed the effects of using hydrogen peroxide, Fenton's reagent treatment and alum coagulation on the removal of organic dissolved and colloidal substances (DCS) from TMP/Newsprint cloudy white water (MWW), fungal cultural filtrate (FCF) and fungal enzymatic treated white water (FWW). It was shown that employing hydrogen peroxide did not significantly remove the colour, even i f a high dosage (2% by wt/wt) of hydrogen peroxide was employed. Both the Fenton's reagent treatment and alum coagulation were effective in reducing detrimental components present in both the fungal cultural filtrate and the fungal enzymatic treated white water, without the requirement of either pH adjustment or the need for changed temperature. We confirmed that fungal enzymatic treatment played a key role in enhancing these two posttreatments. The presence of chelating agents was shown to be the major inhibitor of successful Fenton's reagent treatment of the MWW and FWW. The percentage removal of colour and of organic DCS components were increased up to 90% and 92% respectively of the Fenton's reagent treatment. When using alum coagulation, the removal rates of lignin, extractives and colour were 95%, 85% and 95% respectively. The zeta potential was shown to be the most dominant factor which affected efficient precipitation. The supernatants obtained after each of the treatments were virtually clear and only slightly coloured when compared to the original MWW and FWW samples.
Stability and quasi-normal modes of charged black holes in Born-Infeld gravity
Creators: name: Fernando, Sharmanthie
name: Holbrook, Chad
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we study the stability and quasi-normal modes of scalar perturbations of black holes. The static charged black hole considered here is a solution to Born-Infeld electrodynamics coupled to gravity. We conclude that the black hole is stable. We also compare the stability of it with its linear counter-part Reissner-Nordstrom black hole. The quasi-normal modes are computed using the WKB method. The behavior of these modes with the non-linear parameter, temperature, mass of the scalar field and the spherical index are analyzed in detail.
description: Latex, 17 pages, 13 figures, some sections edited, references added
THE IMPACTS OF THE CONSERVATION RESERVE PROGRAM ON RURAL COMMUNITIES: THE CASE OF THREE OREGON COUNTIES
Creators: name: Martin, Michael V.
name: Radtke, Hans
name: Eleveld, Bart
name: Nofziger, S. Dianne
name: Martin, Michael V.
name: Radtke, Hans
name: Eleveld, Bart
name: Nofziger, S. Dianne
Publisher: name: Unknown
Year: 1988
Subjects: Agricultural and Food Policy
Community/Rural/Urban Development

description: Using an economic input/output model, the community personal income impacts of participating in the Conservation Reserve Program were analyzed for three rural Oregon counties. While individual farmers may benefit from participation, there may be net adverse impact on the community if the retired land is relatively productive or if the inputs that are no longer purchased would have been purchased locally. These negative effects may be exacerbated if participating farmers quit farming and leave the local area or if the Conservation Reserve Program benefits go to absentee landowners. The Conservation Reserve Program may then represent a conflict between community and national policy objectives.
Adversarial Privacy-preserving Filter
Creators: name: Zhang, Jiaming
name: Sang, Jitao
name: Zhao, Xian
name: Huang, Xiaowen
name: Sun, Yanfeng
name: Hu, Yongli
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cryptography and Security (cs.CR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: While widely adopted in practical applications, face recognition has been critically discussed regarding the malicious use of face images and the potential privacy problems, e.g., deceiving payment system and causing personal sabotage. Online photo sharing services unintentionally act as the main repository for malicious crawler and face recognition applications. This work aims to develop a privacy-preserving solution, called Adversarial Privacy-preserving Filter (APF), to protect the online shared face images from being maliciously used.We propose an end-cloud collaborated adversarial attack solution to satisfy requirements of privacy, utility and nonaccessibility. Specifically, the solutions consist of three modules: (1) image-specific gradient generation, to extract image-specific gradient in the user end with a compressed probe model; (2) adversarial gradient transfer, to fine-tune the image-specific gradient in the server cloud; and (3) universal adversarial perturbation enhancement, to append image-independent perturbation to derive the final adversarial noise. Extensive experiments on three datasets validate the effectiveness and efficiency of the proposed solution. A prototype application is also released for further evaluation.We hope the end-cloud collaborated attack framework could shed light on addressing the issue of online multimedia sharing privacy-preserving issues from user side.
description: Accepted by ACM Multimedia 2020
Extending Sibgatullin's ansatz for the Ernst potential to generate a richer family of axially symmetric solutions of Einstein's equations
Creators: name: Sotiriou, Thomas P.
name: Pappas, Giorgos
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The scope of this talk is to present some preliminary results on an effort, currently in progress, to generate an exact solution of Einstein's equation, suitable for describing spacetime around a rotating compact object. Specifically, the form of the Ernst potential on the symmetry axis and its connection with the multipole moments is discussed thoroughly. The way to calculate the multipole moments of spacetime directly from the value of the Ernst potential on the symmetry axis is presented. Finally, a mixed ansatz is formed for the Ernst potential including parameters additional to the ones dictated by Sibgatullin. Thus, we believe that this talk can also serve as a comment on choosing the appropriate ansatz for the Ernst potential.
description: Talk given in the 11th Conference on Recent Developments in Gravity, 2-5 June 2004, Lesbos, Greece
Khanmeti fragments of the synoptic gospels from Ms. Vind. Georg. 2
Creators: name: Birdsall, J. Neville
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 55 (1971): Oriens christianus, Band 55
Loop Equation in D=4, N=4 SYM and String Field Equation on AdS_5 \times S^5
Creators: name: Hata, Hiroyuki
name: Miwa, Akitsugu
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the loop equation in four-dimensional N=4 SYM, which is a functional differential equation for the Wilson loop W(C) and expresses the propagation and the interaction of the string C. Our W(C) consists of the scalar and the gaugino fields as well as the gauge field. The loop C is specified by six bosonic coordinates y^i(s) and two fermionic coordinates ζ(s) and η(s) besides the four-dimensional spacetime coordinates x^μ(s). We have successfully determined, to quadratic order in ζand η, the parameters in W(C) and the loop differential operator so that the equation of motion of SYM can be correctly reproduced to give the non-linear term of W(C). We extract the most singular and linear part of our loop equation and compare it with the Hamiltonian constraint of the string propagating on AdS_5 \times S^5 background.
description: 35 pages, no figures, v2: references added
Contra aesthetic : the struggle for the New Art in post 1968 Belgrade, Yugoslavia
Creators: name: Stankovic, Nevenka
Publisher: name: University of British Columbia
Year: 2009

description: In the late 1960s Yugoslavian artistic production underwent radical change prompted by the emergence of a "New Art," which pursued the "dematerialization" of the art object. This enterprise necessitated new artistic approaches, methods and media, and challenged the very assumptions of established artistic discourse, rendering codified modernist art into the realm of obsolescence. Modernist art and architecture was adopted by the Titoist regime after Yugoslavia broke with Stalinist Soviet Union in 1948, initially as a sign of difference from that regime. Indeed during the fifties, modernism was a trope of progress. Formalist modernism was a potent ideological tool for the Titoist regime during the Cold War in Yugoslavia, which, playing the role of a buffer zone between the two adversary blocks, was considered an open country. While offering an aestheticized picture of reality detached from everyday life, formalist modernism became, in effect, the officially sanctioned artistic vocabulary. The tension between the new art and modernism manifested itself primarily in the conception of the individual and in the relationship between artistic practice and everyday life. In a radical shift, the new art practitioners promoted practices and forms of representation that destabilised an autonomous creator by introducing local narratives and active spectators. The bureaucrats concerned with artistic production in established institutions of art such as the Academy of Art understood this approach as an intervention into the official image of reality. After the outburst of students' discontent in 1968, the officials opened "The Student Cultural Centre" as a safety valve under the banner of accommodating "experiments in art." From the very beginning this institution fostered the wide array of cultural activities and became a "cult" space among the youth. Although it is reasonable to suppose that the regime's hidden agenda was to ghettoize the "New Art," the Student Cultural Centre, served to transform the art scene in Belgrade. In my thesis I address the socio-historical reasons that prompted this shift in the sphere of art production. The Belgrade artistic scene in the early seventies was split between canonized modernism and a periphery reserved for new art practices. The 19th century building housing Student Cultural Centre was the site where proponents of conceptual art struggled against the entrenched modernist canon by introducing new methods and media. In the analysis of new art practices I follow the work of the two artists, Marina Abramovic and Zoran Popovic, whose activity epitomized this struggle at the turn of the seventies.
Impact of the pion mass on nonpower expansion for QCD observables
Creators: name: Nesterenko, A. V.
name: Papavassiliou, J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A new set of functions, which form a basis of the massive nonpower expansion for physical observables, is presented in the framework of the analytic approach to QCD at the four-loop level. The effects due to the $π$ meson mass are taken into account by employing the dispersion relation for the Adler function. The nonvanishing pion mass substantially modifies the functional expansion at low energies. Specifically, the spacelike functions are affected by the mass of the $π$ meson in the infrared domain below few GeV, whereas the timelike functions acquire characteristic plateaulike behavior below the two-pion threshold. At the same time, all the appealing features of the massless nonpower expansion persist in the considered case of the nonvanishing pion mass.
description: Talk given at 12th International QCD Conference (QCD 05), 4 - 9 July 2005, Montpellier, France; 4 pages, 1 figure
Continuous sign language recognition from wearable IMUs using deep capsule networks and game theory
Creators: name: Suri, Karush
name: Gupta, Rinki
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Sign Language is used by the deaf community all over world. The work presented here proposes a novel one-dimensional deep capsule network (CapsNet) architecture for continuous Indian Sign Language recognition by means of signals obtained from a custom designed wearable IMU system. The performance of the proposed CapsNet architecture is assessed by altering dynamic routing between capsule layers. The proposed CapsNet yields improved accuracy values of 94% for 3 routings and 92.50% for 5 routings in comparison with the convolutional neural network (CNN) that yields an accuracy of 87.99%. Improved learning of the proposed architecture is also validated by spatial activations depicting excited units at the predictive layer. Finally, a novel non-cooperative pick-and-predict competition is designed between CapsNet and CNN. Higher value of Nash equilibrium for CapsNet as compared to CNN indicates the suitability of the proposed approach.
IMPLICATIONS OF GLOBAL CLIMATE CHANGE FOR WESTERN AGRICULTURE
Creators: name: Adams, Richard M.
name: McCarl, Bruce A.
name: Dudek, Daniel J.
name: Glyer, J. David
name: Adams, Richard M.
name: McCarl, Bruce A.
name: Dudek, Daniel J.
name: Glyer, J. David
Publisher: name: Unknown
Year: 1988
Subjects: Environmental Economics and Policy

description: Global climate change from increases in atmospheric carbon dioxide and other trace gases is an issue of international concern. Adverse climate conditions are expected to reduce crop yields and alter the demand for and supply of water. These potential adjustments imply economic costs to agriculture and its constituents. This paper explores possible economic implications for U.S. agriculture, with particular reference to the West. Results from a series of spatial equilibrium model analyses suggest that climate change is not a food security issue for the United States. However, regional adjustments in agricultural production and associated resource use are expected. This implies additional pressure in rural communities. Environmental quality reductions are also likely.
Rate coefficients of a roaming reaction H + MgH using the ring polymer molecular dynamics
Creators: name: Yang, Hui
name: Fan, Wenbin
name: Fang, Junhua
name: Song, Jianing
name: Li, Yongle
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The ring-polymer molecular dynamics (RPMD) was used to calculate the thermal rate coefficients of the two-channel roaming reaction H + MgH. Both reaction channels, tight and roaming, are explicitly considered. This is a pioneering attempt of exerting RPMD method to multi-channel reactions. With the help of a newly developed optimization-interpolation protocol for preparing the initial structures and adaptive protocol for choosing the force constants, we have successfully obtained the thermal rate coefficients. The results are consistent with those from other theoretical methods, such as variational transition state theory (VTST) and quantum dynamics (QD). Especially, RPMD results exhibit negative temperature dependence, which is similar to results from VTST but different from ones from ground state QD calculations.
description: 25 pages, 5 figures
TSIL: a program for the calculation of two-loop self-energy integrals
Creators: name: Martin, Stephen P.
name: Robertson, David G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: TSIL is a library of utilities for the numerical calculation of dimensionally regularized two-loop self-energy integrals. A convenient basis for these functions is given by the integrals obtained at the end of O.V. Tarasov's recurrence relation algorithm. The program computes the values of all of these basis functions, for arbitrary input masses and external momentum. When analytical expressions in terms of polylogarithms are available, they are used. Otherwise, the evaluation proceeds by a Runge-Kutta integration of the coupled first-order differential equations for the basis integrals, using the external momentum invariant as the independent variable. The starting point of the integration is provided by known analytic expressions at (or near) zero external momentum. The code is written in C, and may be linked from C, C++, or Fortran. A Fortran interface is provided. We describe the structure and usage of the program, and provide a simple example application. We also compute two new cases analytically, and compare all of our notations and conventions for the two-loop self-energy integrals to those used by several other groups.
description: 31 pages. Updated to reflect new functionality through v1.4 May 2016 and new information about use with C++. Source code and documentation are available at http://www.niu.edu/spmartin/TSIL or http://faculty.otterbein.edu/DRobertson/tsil/
Tatians diatessaron und sein Verhältnis zur altsyrischen und altgeorgischen Überlieferung
Creators: name: Molitor, Joseph
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 55 (1971): Oriens christianus, Band 55
Atomically Thin Boron Nitride as an Ideal Spacer for Metal-Enhanced Fluorescence
Creators: name: Gan, Wei
name: Tserkezis, Christos
name: Cai, Qiran
name: Falin, Alexey
name: Mateti, Srikanth
name: Nguyen, Minh
name: Aharonovich, Igor
name: Watanabe, Kenji
name: Taniguchi, Takashi
name: Huang, Fumin
name: Song, Li
name: Kong, Lingxue
name: Chen, Ying
name: Li, Lu Hua
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: The metal-enhanced fluorescence (MEF) considerably enhances the luminescence for various applications, but its performance largely depends on the dielectric spacer between the fluorophore and plasmonic system. It is still challenging to produce a defect-free spacer having an optimized thickness with a subnanometer accuracy that enables reusability without affecting the enhancement. In this study, we demonstrate the use of atomically thin hexagonal boron nitride (BN) as an ideal MEF spacer owing to its multifold advantages over the traditional dielectric thin films. With rhodamine 6G as a representative fluorophore, it largely improves the enhancement factor (up to ~95+-5), sensitivity (10^-8 M), reproducibility, and reusability (~90% of the plasmonic activity is retained after 30 cycles of heating at 350 °C in air) of MEF. This can be attributed to its two-dimensional structure, thickness control at the atomic level, defect-free quality, high affinities to aromatic fluorophores, good thermal stability, and excellent impermeability. The atomically thin BN spacers could increase the use of MEF in different fields and industries.
Angle-dependent magnetoresistance and its implications for Lifshitz transition in W2As3
Creators: name: Wang, Jialu
name: Yang, Haiyang
name: Ding, Linchao
name: You, Wei
name: Xi, Chuanying
name: Cheng, Jie
name: Shi, Zhixiang
name: Cao, Chao
name: Luo, Yongkang
name: Zhu, Zengwei
name: Dai, Jianhui
name: Tian, Mingliang
name: Li, Yuke
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Lifshitz transition represents a sudden reconstruction of Fermi surface structure, giving rise to anomalies in electronic properties of materials. Such a transition does not necessarily rely on symmetry-breaking and thus is topological. It holds a key to understand the origin of many exotic quantum phenomena, for example the mechanism of extremely large magnetoresistance (MR) in topological Dirac/Weyl semimetals. Here, we report studies of the angle-dependent MR (ADMR) and the thermoelectric effect in W2As3 single crystal. The compound shows a large unsaturated MR (of about 70000% at 4.2 K and 53 T). The most striking finding is that the ADMR significantly deforms from the horizontal dumbbell-like shape above 40 K to the vertical lotus-like pattern below 30 K. The window of 30-40 K also corresponds substantial changes in Hall effect, thermopower and Nernst coefficient, implying an abrupt change of Fermi surface topology. Such a temperature-induced Lifshitz transition results in a compensation of electron-hole transport and the large MR as well. We thus suggest that the similar method can be applicable in detecting a Fermi-surface change of a variety of quantum states when a direct Fermi-surface measurement is not possible.
description: 19 pages, 5 figures
Additional file 6 of Reference genome and transcriptome informed by the sex chromosome complement of the sample increase ability to detect sex differences in gene expression from RNA-Seq data
Creators: name: Olney, Kimberly C.
name: Brotman, Sarah M.
name: Andrews, Jocelyn P.
name: Valverde-Vesling, Valeria A.
name: Wilson, Melissa A.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 6: Multidimensional Scaling plots. We investigated multidimensional scaling for all shared common variable genes for dimensions 1 and 2, and for dimensions 2 and 3 in each tissue. The most variation in each tissue is explained by the aligner C.aligner. The second most variation in each tissue is explained by the sex of the sample A.sex.
Additional file 7 of Reference genome and transcriptome informed by the sex chromosome complement of the sample increase ability to detect sex differences in gene expression from RNA-Seq data
Creators: name: Olney, Kimberly C.
name: Brotman, Sarah M.
name: Andrews, Jocelyn P.
name: Valverde-Vesling, Valeria A.
name: Wilson, Melissa A.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 7: HISAT mapped reads bar plot. Mean difference in expression for average total reads mapped for each tissue and each sex when aligned to a sex chromosome informed versus a default reference genome. Paired t-test to test for significant difference in total reads mapped for the whole transcriptome, chromosome 8, and chromosome X. Nonparametric Wilcox single rank sum test was used to test for significant difference in total reads mapped on the Y chromosome for male samples in each tissue separately. Red * indicate a significant, p-value <0.05, difference in average mapped reads, NS is no significant differences.
Classification of Hand Gestures from Wearable IMUs using Deep Neural Network
Creators: name: Suri, Karush
name: Gupta, Rinki
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: IMUs are gaining significant importance in the field of hand gesture analysis, trajectory detection and kinematic functional study. An Inertial Measurement Unit (IMU) consists of tri-axial accelerometers and gyroscopes which can together be used for formation analysis. The paper presents a novel classification approach using a Deep Neural Network (DNN) for classifying hand gestures obtained from wearable IMU sensors. An optimization objective is set for the classifier in order to reduce correlation between the activities and fit the signal-set with best performance parameters. Training of the network is carried out by feed-forward computation of the input features followed by the back-propagation of errors. The predicted outputs are analyzed in the form of classification accuracies which are then compared to the conventional classification schemes of SVM and kNN. A 3-5% improvement in accuracies is observed in the case of DNN classification. Results are presented for the recorded accelerometer and gyroscope signals and the considered classification schemes.
Additional file 8 of Reference genome and transcriptome informed by the sex chromosome complement of the sample increase ability to detect sex differences in gene expression from RNA-Seq data
Creators: name: Olney, Kimberly C.
name: Brotman, Sarah M.
name: Andrews, Jocelyn P.
name: Valverde-Vesling, Valeria A.
name: Wilson, Melissa A.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 8: STAR mapped reads bar plot. Mean difference in expression for average total reads mapped for each tissue and each sex when aligned to a sex chromosome informed versus a default reference genome. Paired t-test to test for significant difference in total reads mapped for the whole transcriptome, chromosome 8, and chromosome X. Nonparametric Wilcox single rank sum test was used to test for significant difference in total reads mapped on the Y chromosome for male samples in each tissue separately. Red * indicate a significant, p-value <0.05, difference in average mapped reads, NS is no significant differences.
Mapping Large-Scale Structures Behind the Galactic Plane: The Second CIZA Subsample
Creators: name: Kocevski, Dale D.
name: Ebeling, Harald
name: Mullis, Chris R.
name: Tully, R. Brent
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the latest results of the Clusters in the Zone of Avoidance (CIZA) survey, which is mapping the large-scale matter distribution behind the Milky Way by performing the first systematic search for X-ray luminous galaxy clusters at low Galactic latitudes. The survey's approach, which uses X-ray emission to locate cluster candidates, overcomes the problems faced by optically selected cluster surveys which have traditionally avoided this region of the sky due to the severe extinction present along the Galactic plane. We here present the second flux-limited CIZA cluster catalog containing 60 X-ray luminous galaxy clusters, 88% of which are new discoveries. We also examine the degree to which known superclusters extend into the Zone of Avoidance and highlight newly discovered structures which have previously gone unnoticed. We show that the survey has found far fewer rich clusters in the Great Attractor region than would be expected given the region's proposed mass. Instead, we find a significant increase in the number of clusters behind the Great Attractor, with the most notable being an association of clusters near the Shapley supercluster. We propose these clusters trace an extension of the large-scale filament network in which the Shapley concentration is embedded. We also highlight an association of clusters near the Galactic anticenter, which is the first supercluster found to be completely hidden by the Milky Way. Our finding of a less massive Great Attractor and the detection of significant structures behind the complex supports studies which suggest the motion of nearby galaxies, including that of the Local Group, is due, in part, to a large-scale bulk flow which is induced by overdensities beyond the Great Attractor region.
description: 9 pages, 8 figures, Submitted to ApJ
A silicon integrated microwave photonic beamformer
Creators: name: Zhu, Chen
name: Lu, Liangjun
name: Shan, Wensheng
name: Xu, Weihan
name: Zhou, Gangqiang
name: Zhou, Linjie
name: Chen, Jianping
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Optical beamforming networks (OBFNs) based on optical true time delay lines (OTTDLs) are well-known as the promising candidate to solve the bandwidth limitation of traditional electronic phased array antennas (PAAs) due to beam squinting. Here we report the first monolithic 1x8 microwave photonic beamformer based on switchable OTTDLs on the silicon-on-insulator platform. The chip consists of a modulator, an eight-channel OBFN, and 8 photodetectors, which includes hundreds of active and passive components in total. It has a wide operating bandwidth from 8 to 18 GHz, which is almost two orders larger than that of electronic PAAs. The beam can be steered to 31 distinguishable angles in the range of -75.51° to 75.64° based on the beam pattern calculation with the measured RF response. The response time for beam steering is 56 μs. These results represent a significant step towards the realization of integrated microwave photonic beamformers that can satisfy compact size and low power consumption requirements for the future radar and wireless communication systems.
TRADE AND MACROECONOMIC POLICY: WHAT DOES IT MEAN FOR FARMERS AND LENDERS?
Creators: name: Pederson, Glenn D.
name: Khitarishvili, Tamar
name: Pederson, Glenn D.
name: Khitarishvili, Tamar
Publisher: name: Unknown
Year: 2001
Subjects: International Relations/Trade

description: Speech and PowerPoint Presentation
Problems for problem session
Creators: name: Popov, Vladimir L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14L35;14L40;14L30;14M17

description: Below are the problems that I formulated at Open Problems Session of {\it Workshop on Group Actions on Rational Varieties}, McGill University and University of Montreal, Canada, March 2002. To appear in: "Affine Algebraic Geometry" conference Proceedings volume in Contemporary Mathematics series of the Amer. Math. Soc. Ed. by Jaime Gutierrez, Vladimir Shpilrain, and Jie-Tai Yu.
description: Below are the problems that I formulated at Open Problems Session of {\it Workshop on Group Actions on Rational Varieties}, McGill University and University of Montreal, Canada, March 2002. To appear in: "Affine Algebraic Geometry" conference Proceedings volume in Contemporary Mathematics series of the Amer. Math. Soc. Ed. by Jaime Gutierrez, Vladimir Shpilrain, and Jie-Tai Yu
THE MANAGEMENT OF PERCEIVED RISK IN THE FOOD SUPPLY CHAIN: A COMPARATIVE STUDY OF RETAILER-LED BEEF QUALITY ASSURANCE SCHEMES IN GERMANY AND ITALY
Creators: name: Fearne, Andrew
name: Hornibrook, Susan A.
name: Dedman, Sandra
name: Fearne, Andrew
name: Hornibrook, Susan A.
name: Dedman, Sandra
Publisher: name: Unknown
Year: 2001
Subjects: Food Consumption/Nutrition/Food Safety

description: This paper reports the findings from two exploratory case studies of retailer-led quality assurance schemes (QAS) for beef in Germany and Italy. The focus is on the potential for QAS to reduce the risks associated with fresh beef, as perceived by consumers. Results of two consumer surveys are reported, which suggest that QAS have the potential to reduce perceived risk and increase consumer confidence in specific fresh beef products, but that considerable scope remains for improving the communication of QAS, in order that specific scheme objectives are clearly understood by consumers.
Observation of optical Rabi oscillations in transmission signal of atomic vapor under continuous-wave laser excitation
Creators: name: Papoyan, Aram
name: Shmavonyan, Svetlana
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We have studied the temporal behavior of the atomic absorption signal under resonant excitation with a continuous-wave laser radiation. Measurements done for D2 line of 85Rb with ~ 1 ns temporal resolution have shown irregular oscillatory behavior of the transmission signal, which becomes well pronounced for high laser power, and disappears when the laser is tuned off-resonance. Application of the fast Fourier transform analysis of the transmission signal reveals power-dependent frequency peaks, which are shown to be associated with Rabi frequency. Possible linkage of the observed results with the phase-to-amplitude noise conversion caused by the the phase fluctuations of laser field is discussed.
description: 6 pages, 6 figures
Multi-periodic photospheric pulsations and connected wind structures in HD64760
Creators: name: Kaufer, A.
name: Stahl, O.
name: Prinja, R. K.
name: Witherick, D.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on the results of an extended optical spectroscopic monitoring campaign on the early-type B supergiant HD64760 (B0.5Ib) designed to probe the deep-seated origin of spatial wind structure. This new study is based on high-resolution echelle spectra obtained with the FEROS instrument at ESO La Silla. 279 spectra were collected over 10 consecutive nights in 2003. From the period analysis of the line-profile variability of the photospheric lines we identify three closely spaced periods around 4.810 hrs and a splitting of +/-3%. The velocity - phase diagrams of the line-profile variations for the distinct periods reveal characteristic prograde non-radial pulsation patterns of high order corresponding to pulsation modes with l and m in the range 6-10. The three pulsation modes have periods clearly shorter than the characteristic pulsation time scale and show small horizontal velocity fields and hence are identified as p-modes. The beating of the three pulsation modes leads to a retrograde beat pattern with two regions of constructive interference diametrically opposite on the stellar surface and a beat period of 162.8hrs (6.8days). This beat pattern is directly observed in the spectroscopic time series of the photospheric lines. The wind-sensitive lines display features of enhanced emission, which appear to follow the maxima of the photospheric beat pattern.
description: 18 pages, 21 figures (reduced resolution)
USING FARM ASSURANCE SCHEMES TO SIGNAL FOOD SAFETY TO MULTIPLE FOOD RETAILERS IN THE U.K.
Creators: name: Northen, James R.
name: Northen, James R.
Publisher: name: Unknown
Year: 2001
Subjects: Food Consumption/Nutrition/Food Safety

description: It is argued that privately run farm assurance schemes in the U.K. have been developed predominantly to signal the presence of desired level of food safety (and other credence) attributes to domestic multiple food retailers. It is hypothesized that these food retailers will only buy 'farm assured' meat from abattoirs, therefore abattoirs must buy and process 'farm assured' livestock. Other factors, including abattoir size, procurement policy, level of processing and hygiene levels, are also hypothesized to affect the probability of an abattoir selling meat to large multiple retailers. The hypotheses are tested through a survey of abattoirs in the United Kingdom and a logistic regression is used to assess significance. It is found that buying farm assured livestock is a highly significant positive factor in selling meat to large multiple retailers; in addition, the procurement policy of abattoirs (affecting traceability of product) and abattoir size are also found to be significant determinants of the probability of this trade. The empirical evidence supports the hypothesis that industry-led farm assurance schemes are indeed used by large multiple food retailers as a credible signal of food safety (and other credence) attributes.