cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
(In)stability of the Higgs vacuum from the $\textrm{O}(N)$ model at large $N$
Creators: name: Weller, Ryan
name: Su, Chun-Wei
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The theory of an independent Higgs field is given by an $\textrm{O}(N)$ model with an $N$-component scalar $\vecϕ$ and a quartic $λ(\vecϕ\cdot\vecϕ)^2$ potential when $N=4$. The phase structure of the theory can be studied analytically for all values of the coupling $λ$ using the large-$N$ limit, both at zero and finite temperature. However, authors in the 70s and 80s argued the theory at large $N$ was "sick" and "futile", and dismissed the theory. This was based on two points: (1) a failure to identify the stable phases and vacuum of the theory and (2) the issue of a negative bare coupling $λ<0$ in the UV. We provide evidence that the theory is not, in fact, "sick". Issue (2) is dealt with through the modern understanding of $\mathcal{P}\mathcal{T}$-symmetric non-Hermitian theories with "wrong-sign" couplings. Issue (1) is resolved by realizing that the true vacuum has no spontaneous symmetry breaking (SSB) and that the SSB phase only becomes preferred at high temperatures.
description: 6 pages, 2 figures, conference proceedings for ICHEP 2024
Variable stars in the dwarf irregular galaxy NGC 6822: the photometric catalogue
Creators: name: Baldacci, L.
name: Rizzi, L.
name: Clementini, G.
name: Held, E. V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Deep B,V time-series photometry obtained with the ESO Very Large Telescope has been used to identify variable stars in the dwarf irregular galaxy NGC 6822. We surveyed a 6.8x6.8 arcmin area of the galaxy and detected a total number of 390 candidate variables with the optimal image subtraction technique (Alard 2000). Light curves on a magnitude scale were obtained for 262 of these variables. Differential flux light curves are available for the remaining sample. In this paper we present the photometric catalogue of calibrated light curves and time-series data, along with coordinates and classification of the candidate variables. A detailed description is provided of the procedures used to identify the variable stars and calibrate their differential flux light curves on a magnitude scale.
description: 22 pages, 19 figures only as JPEG. Revised version with corrected eq. 5. Full text with better resolution .ps figures available upon request from the authors. Uses aa.cls (included), in press on A&A. Table 2 will only be published at the CDS, Appendix A, Tables 4,5,6 will only be available in the electronic edition of the Journal
On matrix Lax representations and constructions of Miura-type transformations for differential-difference equations
Creators: name: Chistov, Evgeny
name: Igonin, Sergei
Publisher: name: arXiv
Year: 2024
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 37K60, 37K35

description: This paper is part of a research project on relations between differential-difference matrix Lax representations (MLRs) with the action of gauge transformations and discrete Miura-type transformations (MTs) for (nonlinear) integrable differential-difference equations.
 The paper addresses the following problem:
 when and how can one eliminate some shifts of dependent variables from the discrete (difference) part of an MLR by means of gauge transformations?
 Using results on this problem, we present applications to constructing new MLRs and new integrable equations connected by new MTs to known equations.
 In particular, we obtain results of this kind for equations connected to the following ones:
 - The two-component Belov--Chaltikian lattice.
 - The equation (introduced by G. Mari Beffa and Jing Ping Wang) which describes the evolution induced on invariants by an invariant evolution of planar polygons.
 - An equation from [S. Igonin, arXiv:2405.08579] related to the Toda lattice in the Flaschka--Manakov coordinates.
description: 19 pages; v2: minor changes
Prospects for BT Cotton In Mozambique
Creators: name: Pitoro, Raul
name: Walker, Thomas S.
name: Tschirley, David L.
name: Swinton, Scott M.
name: Boughton, Duncan
name: De Marrule, Higino Francisco
name: Pitoro, Raul
name: Walker, Thomas S.
name: Tschirley, David L.
name: Swinton, Scott M.
name: Boughton, Duncan
name: De Marrule, Higino Francisco
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agricultural and Food Policy
subject: Food Security and Poverty
subject: International Development
subject: Research and Development/Tech Change/Emerging Technologies
subject: cotton
subject: Mozambique
subject: food security
subject: Bio Technology

description: Mozambique’s cotton sector is very important to the economy and to poverty reduction in the rural sector. Cotton production in Mozambique is characterized by low levels of productivity, low prices and low returns. Cotton farmers in Mozambique are often no better off than their neighbors who do not grow cotton. Not surprisingly, many cotton farmers have switched to other crops such as sesame. But the Government of Mozambique and the National Cotton Institute (INE) are committed to improving the profitability of the cotton sector and encouraging new investments by international companies. Looking at cotton production globally, the most important innovation in recent years has been the introduction of transgenic Bt cotton. Bt cotton varieties have built-in resistance to bollworm, a devastating insect pest. Cotton production in countries that have introduced Bt varieties, like India, China and the United States, has soared. Yet no country in Sub-Saharan Africa (SSA), with the exception of South Africa, has yet introduced Bt cotton. Burkina Faso is at an advanced stage of testing.
description: Institute of Agricultural Research of Mozambique Directorate of Training, Documentation, and Technology Transfer
The Exotic Type Ic Broad-Lined Supernova SN 2018gep: Blurring the Line Between Supernovae and Fast Optical Transients
Creators: name: Pritchard, T. A.
name: Bensch, Katarzyna
name: Modjaz, Maryam
name: Williamson, Marc
name: Thöne, Christina C.
name: Vinkó, J.
name: Bianco, Federica B.
name: Boestroem, K. Azalee
name: Burke, Jamison
name: García-Benito, Rubén
name: Galbany, L.
name: Hiramatsu, Daichi
name: Howell, D. Andrew
name: Izzo, Luca
name: Kann, D. Alexander
name: McCully, Curtis
name: Pellegrino, Craig
name: Postigo, Antonio de Ugarte
name: Valenti, Stefano
name: Wang, Xiaofeng
name: Wheeler, J. C.
name: Xiang, Danfeng
name: Sárneczky, K.
name: Bódi, A.
name: Cseh, B.
name: Tarczay-Nehéz, D.
name: Kriskovics, L.
name: Ordasi, A.
name: Pál, A.
name: Szakáts, R.
name: Vida, K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In the last decade a number of rapidly evolving transients have been discovered that are not easily explained by traditional supernovae models. We present optical and UV data on onee such object, SN 2018gep, that displayed a fast rise with a mostly featureless blue continuum around maximum light, and evolved to develop broad features more typical of a SN Ic-bl while retaining significant amounts of blue flux throughout its observations. The blue excess is most evident in its near-UV flux that is over 4 magnitudes brighter than other stripped envelope supernovae, but also visible in optical g$-$r colors at early times. Its fast rise time of $t_{\rm rise,V} \lesssim 6.2 \pm 0.8$ days puts it squarely in the emerging class of Fast Evolving Luminous Transients, or Fast Blue Optical Transients. With a peak absolute magnitude of M$_r=-19.49 \pm 0.23 $ mag it is on the extreme end of both the rise time and peak magnitude distribution for SNe Ic-bl. Only one other SN Ic-bl has similar properties, iPTF16asu, for which less of the important early time and UV data have been obtained. We show that the objects SNe 2018gep and iPTF16asu have similar photometric and spectroscopic properties and that they overall share many similarities with both SNe Ic-bl and Fast Evolving Transients. We obtain IFU observations of the SN 2018gep host galaxy and derive a number of properties for it. We show that the derived host galaxy properties for both SN 2018gep and iPTF16asu are overall consistent with the SNe Ic-bl and GRB/SNe sample while being on the extreme edge of the observed Fast Evolving Transient sample. These photometric observations are consistent with a simple SN Ic-bl model that has an additional form of energy injection at early times that drives the observed rapid, blue rise, and we speculate that this additional power source may extrapolate to the broader Fast Evolving Transient sample.
Additional file 1 of A new knockdown resistance (kdr) mutation, F1534L, in the voltage-gated sodium channel of Aedes aegypti, co-occurring with F1534C, S989P and V1016G
Creators: name: Kushwah, Raja Babu S.
name: Taranjeet Kaur
name: Dykes, Cherry L.
name: H. Ravi Kumar
name: Kapoor, Neera
name: Singh, Om P.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Table S1. Frequency of individuals with different genotype combinations at residues F1534, S989 and V1016.
Forecast of rural gross social output value in Jiangsu Province based on optimized grey model
Creators: name: Men, Ke-Pei
name: Zhang, Na
name: Men, Ke-Pei
name: Zhang, Na
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agribusiness
subject: Agricultural Finance
subject: Community/Rural/Urban Development
subject: Financial Economics
subject: Research Methods/ Statistical Methods
subject: Rural gross social output value in Jiangsu Province
subject: Grey modeling
subject: Optimized grey model with logarithm new development coefficient
subject: Forecast
subject: China

description: We establish the optimized grey model with logarithm new development coefficient by screening according to the latest statistical data during 2007 in Jiangsu Province. Empirical analysis and prediction research on rural gross social output value in Jiangsu Province from the year 2008 to 2012 are carried out. Result shows that the rural gross social output value in Jiangsu Province in 2008 reached 6 169.697 billion yuan, and will be 9 511.017 billion yuan at the end of 2010, which is about 6.690 times of that in the year 2000. Target of the “Eleventh Five-Year Plan” is expected to be realized smoothly.
Thermodynamic Topology of Kiselev-AdS Black Holes within f (R, T) gravity
Creators: name: Gashti, Saeed Noori
name: Afshar, Mohammad Ali S.
name: Alipour, Mohammad Reza
name: Sekhmani, Yassine
name: Sadeghi, Jafar
name: Rayimbaev, Javlon
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper, we investigate the topological charge and the conditions for the existence of the photon sphere (PS) in Kiselev-AdS black holes within \(f(R, T)\) gravity. We employ two different methods based on Duan's topological current \(ϕ\)-mapping theory viz analize of temperature and the generalized Helmholtz free energy methods to study the topological classes of our black hole. By considering the mentioned black hole, we discuss the critical and zero points (topological charges and topological numbers) for different parameters. Our findings reveal that the Kiselev parameter \(ω\) and the \(f(R, T)\) gravity parameter \(γ\) influence the number of topological charges of black holes, leading to novel insights into topological classifications. We observe that for given values of the free parameters, there exist total topological charges (\(Q_{total} = -1\)) for T-method and total topological numbers (\(W = +1\)) for the generalized Helmholtz free energy method. Our research findings elucidate that, in contrast to the scenario where \(ω= 1/3\), in other cases, increasing the parameter \(γ\) increases the number of total topological charges for the black hole. Interestingly, for the phantom field (\(ω= -4/3\)), we observed that decreasing the parameter \(γ\) increases the number of topological charges. Additionally, we study the results for the photon sphere. The studied models clearly reveal that the simultaneous presence of \(γ\) and \(ω\) effectively expands the permissible range for \(γ\). In other words, the model can exhibit black hole behavior over a larger domain. Additionally, it is evident that with the stepwise reduction of \(ω\), the region covered by singularity also diminishes and becomes more restricted. However, An interesting point about all three ranges is the elimination of the forbidden region in this model.
description: 21 pages, 13 figures, 4 table
Time-reversal invariance violation effect in $\bm{dd}$ scattering
Creators: name: Platonova, M. N.
name: Uzikov, Yu. N.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A formalism has been developed for calculating the signal of violation of $T$ invariance, provided that $P$ invariance is preserved during the scattering of tensor-polarized deuterons on vector-polarized ones based on the Glauber theory with the full consideration of spin dependence of $NN$ elastic scattering amplitudes and spin structure of colliding deuterons. The numerical calculations have been carried out in the range of laboratory proton energies $T_p=0.1$--$1.2$ GeV using the SAID database for spin amplitudes and in the energy region of the SPD NICA experiment corresponding to the invariant mass of the interacting nucleon pairs $\sqrt{s_{NN}}= 2.5$--$25$ GeV, using two phenomenological models of $pN$ elastic scattering. It is found that only one type of the $T$ non-invariant $P$-invariant $NN$ interaction gives a non-zero contribution to the signal in question, that is important for isolating an unknown constant of this interaction from the corresponding data.
description: 12 pages, 3 figures. Accepted by Chinese Physics C
Gap Symmetry and Thermal Conductivity in Nodal Superconductors
Creators: name: Won, H.
name: Maki, K.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Here we consider the universal heat conduction and the angular dependent thermal conductivity in the vortex state for a few nodal superconductors. We present the thermal conductivity as a function of impurity concentration and the angular dependent thermal conductivity in a few nodal superconductors. This provides further insight in the gap symmetry of superconductivity in Sr$_2$RuO$_4$ and UPd$_2$Al$_3$.
description: 2 pages, proceedings of SCES '04
Muon-Spin-Rotation Measurements of the Penetration Depth in the Infinite-Layer Electron-Doped Cuprate Superconductor Sr0.9La0.1CuO2
Creators: name: Shengelaya, A.
name: Khasanov, R.
name: Eshchenko, D. G.
name: Di Castro, D.
name: Savic, I. M.
name: Park, M. S.
name: Kim, K. H.
name: Lee, Sung-Ik
name: Muller, K. A.
name: Keller, H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Muon spin rotation (mSR) measurements of the in-plane penetration depth lambda_ab have been performed in the electron-doped infinite layer high-Tc superconductor (HTS) Sr0.9La0.1CuO2. Absence of the magnetic rare-earth ions in this compound allowed to measure for the first time the absolute value of lambda_ab(0) in electron-doped HTS using mSR. We found lambda_ab(0)=116(2) nm. The zero-temperature depolarization rate sigma(0)?1/lambda_ab(0)^2=4.6(1) MHz is more than four times higher than expected from the Uemura line. Therefore this electron-doped HTS does not follow the Uemura relation found for hole-doped HTS.
description: to be published in Physical Review Letters
Additional file 2 of A new knockdown resistance (kdr) mutation, F1534L, in the voltage-gated sodium channel of Aedes aegypti, co-occurring with F1534C, S989P and V1016G
Creators: name: Kushwah, Raja Babu S.
name: Taranjeet Kaur
name: Dykes, Cherry L.
name: H. Ravi Kumar
name: Kapoor, Neera
name: Singh, Om P.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Text S1. Estimation of gametic phase from multi-locus diploid data based on a Gibbs sampling strategy.
Q0957+561 revised: CO emission from a disk at z=1.4
Creators: name: Krips, M.
name: Neri, R.
name: Eckart, A.
name: Downes, D.
name: Martin-Pintado, J.
name: Planesas, P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Based on additional interferometric observations, we reanalysed the CO(2-1) and 3mm continuum emission of Q0957+561, a lensed QSO at a redshift of z=1.4141. The emission in the CO(2-1) lines reveals a gas-rich host galaxy with a peculiar double-peaked profile at one of the two lensed images. Our new interferometric CO maps of the host galaxy agree well with HST images obtained by Keeton et al. (2000) and we thus argue that the two velocity components arise from molecular gas in the disk of the host galaxy. We also present new model calculations, all in excellent agreement with recent time delay measurements and simulations.
description: 8 pages, 5 figures, accepted for publication in A&A, Table1 corrected
Purification and characterization of polyhomeotic associated proteins from Drosophila Kc1 cells
Creators: name: Wang, Yong-Jun
Publisher: name: University of British Columbia
Year: 2009

description: The Polycomb group (PcG) genes encode repressors of homeotic and other genes, that are required to maintain silencing of target loci. Tethered P cG proteins repress reporter genes in cell lines and in Drosophila embryos, showing that P cG proteins are repressors. PcG genes are required for the maintenance but not the initiation of homeotic gene repression, because in P cG mutants, initiation of homeotic gene expression is normal, and then breaks down after a lag of several hours. Coimmunoprecipitation and cofractionation of P cG proteins, colocalization of P cG proteins on polytene chromosomes, and synergistic mutant phenotypes in double heterozygous mutants of PcG genes suggest that P cG proteins act through multimeric protein complexes. However, the mechanisms of PcG-mediated homeotic gene silencing are not known. One approach to this problem is to identify proteins that associate with PcG proteins in vivo in an effort to generate testable hypotheses about PcG-mediated silencing. Using epitope tagging followed by immunopurification, I purified Polyhomeotic (PH) proximal and its associated proteins from Drosophila K c l cell nuclear extracts. I subsequently identified the PH-associated proteins using mass spectrometry sequencing and western blotting analysis. I showed that molecular chaperones are associated with P H and that a mutation in chaperone Hsc70.4 enhances the extra sex combs phenotype of ph and Pc. These results suggest that chaperones may participate in the formation of PH-containing complexes, or may be required for silencing. I demonstrated that the histone deacetylase Rpd3 and histone binding protein p55 are associated with PH, and that the Rpd3 mutation enhances the extra sex combs phenotype of ph and Pc. Surprisingly, histone deacetylase activity was not detected in immunopurified PH. I showed using western blotting analysis that the TATA-binding protein (TBP) and its associating proteins TAFn 4 2 and TAFn85 are also associated with PH. PH and PC were coimmunoprecipitated by anti- TBP antibody. In addition, Tbp mutants enhance the extra sex combs phenotype of ph but not Pc. Together, these findings suggest that P cG proteins use different means to silence gene expression including modifying histones and targeting the basal transcriptional machinery.
Swimming Efficiency of Bacterium Escherichia Coli
Creators: name: Chattopadhyay, Suddhashil
name: Moldovan, Radu
name: Yeung, Chuck
name: Wu, X. L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: We use in vivo measurements of swimming bacteria in an optical trap to determine fundamental properties of bacterial propulsion. In particular, we determine the propulsion matrix, which relates the angular velocity of the flagellum to the torques and forces propelling the bacterium. From the propulsion matrix dynamical properties such as forces, torques, swimming speed and power can be obtained from measurements of the angular velocity of the motor. We find significant heterogeneities among different individuals even though all bacteria started from a single colony. The propulsive efficiency, defined as the ratio of the propulsive power output to the rotary power input provided by the motors, is found to be 0.2%.
description: 6 pages
Additional file 1 of Cerebrospinal fluid-cutaneous fistula associated with post-traumatic Charcot spinal arthropathy: a case report and review of literature
Creators: name: Ryu, Ji Hyun
name: Jun-Seok Lee
name: Chang-Rack Lim
name: Cho, Wan Jae
name: Kim, Ki-Won
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Ecology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Computational Biology

description: Additional file 1. Timeline.
Grain Contracting Strategies to Induce Delivery and Performance in Volatile Markets
Creators: name: Wilson, William W.
name: Wilson, William W.
Publisher: name: Unknown
Year: 2009
Subjects: Crop Production/Industries
Farm Management
Financial Economics

description: One of the impacts of higher prices along with greater volatility in futures and basis is that there is pressure for an escalation in cash contracting for grain. This volatility has resulted in an unprecedented level of contracting with growers for specific purchases in recent years. There is a wide array of cash contracts with varying terms. Beyond that array, there is also a growing realization of growers not delivering on contracts, in part due to escalation in post-contract prices. This realization is evolving as a major strategic issue for buyers and the marketing system, particularly as buyers seek to use such contracting strategies as an element of risk mitigation. There are three purposes of this article. First is to provide a broad survey of contract terms used in grain contracting with growers. An emphasis of these terms relates to options and mechanisms used to entice performance. Second, we illustrate some issues in contracting of some of the grains (durum, malting barley) in the upper Midwest. Third, we show some of the common contract clauses being adapted in these contracts. Finally, we summarize these issues with respect to industry implications.
Some conjectures for Macdonald polynomials of type B, C, D
Creators: name: Lassalle, Michel
Publisher: name: arXiv
Year: 2005
Subjects: subject: Combinatorics (math.CO)
subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: We present conjectures giving formulas for the Macdonald polynomials of type B, C, D which are indexed by a multiple of the first fundamental weight. The transition matrices between two different types are explicitly given.
description: AMS-TeX, 24 pages, a misprint corrected in Conjecture 5
Smoothing of the higher-order Stokes phenomenon
Creators: name: Howls, Chris J.
name: King, John R.
name: Nemes, Gergő
name: Daalhuis, Adri B. Olde
Publisher: name: arXiv
Year: 2024
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 30E15, 41A60, 34E05, 35C20

description: For nearly a century and a half the Stokes phenomenon had been perceived as a discontinuous change in the asymptotic representation of a function. In 1989 Berry demonstrated how it is possible to smooth out this discontinuity in broad classes of problems with the prefactor for the exponentially small contribution that is being switched on/off taking the universal form of an error function. Following pioneering work of Berk {\it et al.} \cite{BNR82} and the Japanese school of formally exact asymptotics \cite{Aokietal1994,AKT01}, the concept of the higher-order Stokes phenomenon was introduced in \cite{HLO04} and \cite{CM05}, whereby the ability for the exponentially small terms to cause a Stokes phenomenon may change, depending on the values of parameters in the problem, corresponding to the associated singularities in the Borel plane transitioning between different Riemann sheets. Until now, the higher-order Stokes phenomenon has also been treated as a discontinuous event. In this paper we show how the higher-order Stokes phenomenon is, in fact, also smooth and occurs universally with a prefactor that takes the form of a new special function, based on a Gaussian convolution of an error function that gives rise to a rich structure. We provide a rigorous derivation of the result, with examples spanning the gamma function, a second-order nonlinear ODE and the telegraph equation, giving rise to a ghost-like smooth contribution that is present in the vicinity of a Stokes line, but which rapidly tends to zero on either side. We also include a rigorous derivation and example of the effect of the smoothed higher-order Stokes phenomenon on the individual terms in the asymptotic series, where the additional contributions appear prefactored by an error function.
description: 49 pages, 15 figures
Anisotropy of Long-period Comets Explained by Their Formation Process
Creators: name: Higuchi, Arika
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Long-period comets coming from the Oort cloud are thought to be planetesimals formed in the planetary region on the ecliptic plane. We have investigated the orbital evolution of these bodies due to the Galactic tide. We extended Higuchi et al. (2007) and derived the analytical solutions to the Galactic longitude and latitude of the direction of aphelion, $L$ and $B$. Using the analytical solutions, we show that the ratio of the periods of the evolution of $L$ and $B$ is very close to either 2 or $\infty$ for initial eccentricities $e_i\simeq 1$, as is true for the Oort cloud comets. From the relation between $L$ and $B$, we predict that Oort cloud comets returning to the planetary region are concentrated on the ecliptic plane and a second plane, which we call the "empty ecliptic." This consists in a rotation of the ecliptic around the Galactic pole by 180$^\circ$. Our numerical integrations confirm that the radial component of the Galactic tide, which is neglected in the derivation of the analytical solutions, is not strong enough to break the relation between $L$ and $B$ derived analytically. Brief examination of observational data shows that there are concentrations near both the ecliptic and the empty ecliptic. We also show that the anomalies of the distribution of $B$ of long-period comets mentioned by several authors are explained by the concentrations on the two planes more consistently than by previous explanations.
description: 25 pages, 9 figures, accepted for publication in AJ
Pinch Resonances in a Radio Frequency Driven SQUID Ring-Resonator System
Creators: name: Prance, H.
name: Clark, T. D.
name: Whiteman, R.
name: Prance, R. J.
name: Everitt, M. J.
name: Stiffell, P.
name: Ralph, J. F.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In this paper we present experimental data on the frequency domain response of a SQUID ring (a Josephson weak link enclosed by a thick superconducting ring) coupled to a radio frequency (rf) tank circuit resonator. We show that with the ring weakly hysteretic the resonance lineshape of this coupled system can display opposed fold bifurcations that appear to touch (pinch off). We demonstrate that for appropriate circuit parameters these pinch off lineshapes exist as solutions of the non-linear equations of motion for the system.
description: 9 pages, 8 figures, Uploaded as implementing a policy of arXiving old papers
Linking Policies for Biodiversity Conservation with Advances in Behavioral Economics
Creators: name: Tisdell, Clement A.
name: Tisdell, Clement A.
Publisher: name: Unknown
Year: 2005
Subjects: subject: Environmental Economics and Policy
subject: Institutional and Behavioral Economics
subject: Biodiversity
subject: behavioral economics
subject: contingent valuation
subject: experimental economics
subject: travel cost method.

description: Global biodiversity loss and its consequences for human welfare and sustainable development have become major concerns. Economists have, therefore, given increasing attention to the policy issues involved in the management of genetic resources. To do so, they often apply empirical methods developed in behavioral and experimental economics to estimate economic values placed on genetic resources. This trend away from almost exclusive dependence on axiomatic methods is welcomed. However, major valuation methods used in behavioral economics raise new scientific challenges. Possibly the most important of these include deficiencies in the knowledge of the public (and researchers) about genetic resources, implications for the formation of values of supplying information to focal individuals, and limits to rationality. These issues are explored for stated-preference techniques of valuation (e.g., contingent valuation) as well as revealed preference techniques, especially the travel cost method. They are illustrated by Australian and Asian examples. Taking into account behavioral and psychological models and empirical evidence, particular attention is given to how elicitation of preferences, and supply of information to individuals, influences their preferences about biodiversity. Policy consequences are outlined.
Additional file 8 of Identification of small RNAs during cold acclimation in Arabidopsis thaliana
Creators: name: Bhavika Tiwari
name: Habermann, Kristin
name: M. Asif Arif
name: Weil, Heinrich Lukas
name: Garcia-Molina, Antoni
name: Kleine, Tatjana
name: Mühlhaus, Timo
name: Frank, Wolfgang
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 8 Fig. S1: Complete gene regulatory network (GRN) of cold acclimation. Overview of the GRN for cold acclimation. All predicted miRNA targets in cold were selected and TFs regulating these targets were inferred. Vertex colors indicate the respective regulatory activity and edge colors mark the association to a calculated module. The biggest modules are labeled with their most prominent functional groups which were identified using ontology enrichment.
It's Morphin' Time! Combating Linguistic Discrimination with Inflectional Perturbations
Creators: name: Tan, Samson
name: Joty, Shafiq
name: Kan, Min-Yen
name: Socher, Richard
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: Computers and Society (cs.CY)
subject: Machine Learning (cs.LG)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Training on only perfect Standard English corpora predisposes pre-trained neural networks to discriminate against minorities from non-standard linguistic backgrounds (e.g., African American Vernacular English, Colloquial Singapore English, etc.). We perturb the inflectional morphology of words to craft plausible and semantically similar adversarial examples that expose these biases in popular NLP models, e.g., BERT and Transformer, and show that adversarially fine-tuning them for a single epoch significantly improves robustness without sacrificing performance on clean data.
description: To appear in the Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics (ACL 2020)
Transversity and Drell-Yan $K$-Factors
Creators: name: Ratcliffe, Philip G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Drell-Yan $K$-factors for transversely polarised hadrons are examined. Since transverse spin is peculiar in having no DIS reference point, the effects of higher-order corrections on DY asymmetries are examined via a DIS definition for transversity devised using a hypothetical scalar vertex. The results suggest that some care may be required when interpreting experimentally extracted partonic transversity, particularly when comparing with model calculations or predictions.
description: 4 pages, 2 figures (eps and feynmp); uses World Scientific class ws-procs9x6, standard LaTeX/MiKTeX packages [amsmath, feynmp, graphicx, natbib, psfrag] and one homespun package (included in the zip file); contributed talk to appear in proc. of the XVI Int. Symp. on High-Energy Spin Physics, Trieste (Oct. 2004)
Enhanced Feature Based Granular Ball Twin Support Vector Machine
Creators: name: Quadir, A.
name: Sajid, M.
name: Tanveer, M.
name: Suganthan, P. N.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: In this paper, we propose enhanced feature based granular ball twin support vector machine (EF-GBTSVM). EF-GBTSVM employs the coarse granularity of granular balls (GBs) as input rather than individual data samples. The GBs are mapped to the feature space of the hidden layer using random projection followed by the utilization of a non-linear activation function. The concatenation of original and hidden features derived from the centers of GBs gives rise to an enhanced feature space, commonly referred to as the random vector functional link (RVFL) space. This space encapsulates nuanced feature information to GBs. Further, we employ twin support vector machine (TSVM) in the RVFL space for classification. TSVM generates the two non-parallel hyperplanes in the enhanced feature space, which improves the generalization performance of the proposed EF-GBTSVM model. Moreover, the coarser granularity of the GBs enables the proposed EF-GBTSVM model to exhibit robustness to resampling, showcasing reduced susceptibility to the impact of noise and outliers. We undertake a thorough evaluation of the proposed EF-GBTSVM model on benchmark UCI and KEEL datasets. This evaluation encompasses scenarios with and without the inclusion of label noise. Moreover, experiments using NDC datasets further emphasize the proposed model's ability to handle large datasets. Experimental results, supported by thorough statistical analyses, demonstrate that the proposed EF-GBTSVM model significantly outperforms the baseline models in terms of generalization capabilities, scalability, and robustness. The source code for the proposed EF-GBTSVM model, along with additional results and further details, can be accessed at https://github.com/mtanveer1/EF-GBTSVM.
Reservoir Computing meets Recurrent Kernels and Structured Transforms
Creators: name: Dong, Jonathan
name: Ohana, Ruben
name: Rafayelyan, Mushegh
name: Krzakala, Florent
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Reservoir Computing is a class of simple yet efficient Recurrent Neural Networks where internal weights are fixed at random and only a linear output layer is trained. In the large size limit, such random neural networks have a deep connection with kernel methods. Our contributions are threefold: a) We rigorously establish the recurrent kernel limit of Reservoir Computing and prove its convergence. b) We test our models on chaotic time series prediction, a classic but challenging benchmark in Reservoir Computing, and show how the Recurrent Kernel is competitive and computationally efficient when the number of data points remains moderate. c) When the number of samples is too large, we leverage the success of structured Random Features for kernel approximation by introducing Structured Reservoir Computing. The two proposed methods, Recurrent Kernel and Structured Reservoir Computing, turn out to be much faster and more memory-efficient than conventional Reservoir Computing.
A Report on the Management of Saltwater Crocodiles (Crocodylus porosus) in the Northern Territory: Results of a Survey of Pastoralists
Creators: name: Tisdell, Clement A.
name: Wilson, Clevo
name: Swarna Nantha, Hemanath
name: Tisdell, Clement A.
name: Wilson, Clevo
name: Swarna Nantha, Hemanath
Publisher: name: Unknown
Year: 2005
Subjects: subject: Environmental Economics and Policy
subject: Saltwater Crocodiles

description: The management of saltwater crocodiles (Crocodylus porosus) in the Northern Territory is an important component of the State’s wildlife management policy. It encompasses saltwater crocodile control (the removal of problem crocodiles dangerous to humans and livestock), and the regulation of harvesting, farming and ranching of saltwater crocodiles for the production of commercial products. The distribution of saltwater crocodiles and their habitats often extend onto private and communal lands along the coastal belt of the Northern Territory, and therefore are a concern of landholders both Aboriginal and pastoral. This report presents the findings of a study of managers of Northern Territory cattle properties (pastoralists). Their attitudes are surveyed towards saltwater crocodiles on their properties and their views of the Northern Territory Parks and Wildlife Commission’s saltwater crocodile management plan are outlined. This report addresses social, economic and environmental aspects of the issue: pastoralists’ attitudes towards saltwater crocodiles in general, the impact saltwater crocodiles have on their cattle-raising business, their opinions of the Northern Territory Government’s saltwater crocodile plan and its operation, and their views of saltwater crocodile harvesting, its potential as an income earner and its contribution to the conservation of the saltwater crocodile. Opinions of pastoralists about new management schemes such as trophy hunting of saltwater crocodiles are also analysed. A concluding statement ties up the findings of the study and provides a snapshot of the current views of pastoral landholders of saltwater crocodiles and their management in the Northern Territory.
Additional file 9 of Identification of small RNAs during cold acclimation in Arabidopsis thaliana
Creators: name: Bhavika Tiwari
name: Habermann, Kristin
name: M. Asif Arif
name: Weil, Heinrich Lukas
name: Garcia-Molina, Antoni
name: Kleine, Tatjana
name: Mühlhaus, Timo
name: Frank, Wolfgang
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 9 Fig. S2: Cold responsive gene regulatory network comprising of direct and indirect targets of DE miRNAs. The miRNAs and the targets are differentially expressed at any one of the analyzed time points (FC ≥ 2& ≤ − 2, Benjamini-Hochberg corrected p-value ≤0.05). Functional modules associated with cold stress; kinase signaling; transcription, translation and transport are represented by blue, dark green, pink, and orange color, respectively.
The MOSDEF Survey: Calibrating the relationship between H$α$ star-formation rate and radio continuum luminosity at $1.4 < z < 2.6$
Creators: name: Duncan, Kenneth J.
name: Shivaei, Irene
name: Shapley, Alice E.
name: Reddy, Naveen A.
name: Mobasher, Bahram
name: Coil, Alison L.
name: Kriek, Mariska
name: Siana, Brian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The observed empirical relation between the star-formation rates (SFR) of low-redshift galaxies and their radio continuum luminosity offers a potential means of measuring SFR in high redshift galaxies that is unaffected by dust obscuration. In this study, we make the first test for redshift evolution in the SFR-radio continuum relation at high redshift using dust-corrected H$α$ SFR. Our sample consists of 178 galaxies from the MOSFIRE Deep Evolution Field (MOSDEF) Survey at $1.4 < z < 2.6$ with rest-frame optical spectroscopy and deep 1.5 GHz radio continuum observations from the Karl G. Jansky Very Large Array (VLA) GOODS North field. Using a stacking analysis we compare the observed radio continuum luminosities with those predicted from the dust-corrected H$α$ SFR assuming a range of $z\sim0$ relations. We find no evidence for a systematic evolution with redshift, when stacking the radio continuum as a function of dust-corrected H$α$ SFR and when stacking both optical spectroscopy and radio continuum as a function of stellar mass. We conclude that locally calibrated relations between SFR and radio continuum luminosity remain valid out to $z\sim 2$.
description: 11 pages, 5 figures. Submitted for publication in MNRAS - comments welcome
A new approach to constraining properties of AGN host galaxies by combining image and SED decomposition: testing upon the MBH-M* relation
Creators: name: Yu, Haoran
name: Fan, Lulu
name: Han, Yunkun
name: Sun, Weibin
name: Zhang, Yihang
name: Ding, Xuheng
name: Xue, Yongquan
Publisher: name: arXiv
Year: 2024
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The outshining light from active galactic nuclei (AGNs) poses significant challenges in studying the properties of AGN host galaxies. To address this issue, we propose a novel approach which combines image decomposition and spectral energy distribution (SED) decomposition to constrain properties of AGN host galaxies. Image decomposition allows us to disentangle optical flux into AGN and stellar components, thereby providing additional constraints on the SED models to derive more refined stellar mass. To test the viability of this approach, we obtained a sample of 24 X-ray selected type-I AGNs with redshifts ranging from 0.73 to 2.47. We estimated the stellar masses for our sample and found that our results are generally consistent with earlier estimates based on different methods. Through examining the posterior distribution of stellar masses, we find that our method could derive better constrained results compared to previous SED decomposition methods. With the derived stellar masses, we further studied the MBH-M* relation of our sample, finding a higher intrinsic scatter in the correlation for our entire sample compared to the local quiescent correlation, which could be caused by a few black hole monsters in our sample. We propose that based on our method, future works could extend to larger samples of high-redshift AGN host galaxies, thereby enhancing our understanding of their properties.
description: 15 pages, 8 figures, accepted for publication in ApJ. This work used the code https://github.com/hanyk/BayeSED3 . The readers can refer to a Jupyter notebook to reproduce our results, see https://github.com/hanyk/BayeSED3/blob/main/observation/agn_host_decomp/demo.ipynb
Cytochrome P450 1A as a biomarker of contaminant exposure in free-ranging marine mammals
Creators: name: Miller, Kelsey A.
Publisher: name: University of British Columbia
Year: 2009

description: Marine mammals are exposed to high concentrations of organochlorine contaminants that have been linked to adverse health effects. Hepatic cytochrome P450 1A (CYP1A) is a widely used biomarker of organochlorine exposure. CYP1A catalyzes the biotransformation of xenobiotic compounds and is specifically induced by planar aromatic and halogenated hydrocarbons. CYP1A analysis has traditionally involved harvesting liver samples from dead animals. However, because of legal and ethical constraints, the use of liver for biomarker studies in free-ranging marine mammals has become increasingly unacceptable. The objective of this study was to determine whether CYP1A in skin biopsies, obtained using minimally-invasive techniques, could be used as a biomarker of organochlorine exposure in wild harbour seals and killer whales. This study consisted of three groups: (1) 20 free-ranging harbour seal pups were captured in southern British Columbia (BC) and temporarily housed in captivity. Skin-blubber and liver biopsies were collected, and three seals were orally treated with B-naphthoflavone (BNF), a known CYP1A inducer. (2) Skin-blubber biopsies were collected in the field from 42 seals (pups and adults) in BC and Washington State. (3) Skin-blubber biopsies were collected from 13 free-ranging killer whales in BC. CYP1A enzyme activity and protein levels were quantified in both liver and skin biopsies from seals using the ethoxyresorufin O-deethylase (EROD) and immunoblot assays, respectively. Cutaneous CYP1A expression was near the detection limit and did not correlate with hepatic CYP1A. However, in both tissues, CYP1A protein levels were induced by BNF treatment, and CYP1A expression increased during three weeks in captivity. Hepatic CYP1A expression correlated with blubber contaminant levels, and cutaneous CYP1A protein levels were higher in pups from Washington State than in pups from BC. EROD activity was not detected in killer whale skin, though a possible CYP1A protein band was detected by immunoblot analysis. In this study, CYP1A was quantified in small liver and skin biopsies obtained from free-ranging marine mammals using minimally-invasive methods. However, further studies are needed to validate the use of CYP1A as a biomarker of organochlorine exposure in marine mammal skin.
Wave packet dynamics of the matter wave field of a Bose-Einstein condensate
Creators: name: Sudheesh, C.
name: Lakshmibala, S.
name: Balakrishnan, V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show in the framework of a tractable model that revivals and fractional revivals of wave packets afford clear signatures of the extent of departure from coherence and from Poisson statistics of the matter wave field in a Bose-Einstein condensate, or of a suitably chosen initial state of the radiation field propagating in a Kerr-like medium.
description: 10 pages, 4 figures, RevTeX4