cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Patterning phytoplankton and environmental parameters in Gyeonggi Bay, Korea, using artificial neural networks
Creators: name: Seo, Ji-ho
name: Choi, Joong-ki
name: Choi, Hyu-chang
name: Park, Young-seuk
Publisher: name: ASC 2010 - Theme session F
Year: 2024
Subjects: Ecosystem observation, processes and dynamics

description: No abstracts are to be cited without prior reference to the author.The temporal variation and distribution pattern of phytoplankton biomass were described from data obtained from 1986 to 2004 in the Gyeonggi Bay, Korea. Phytoplankton blooms—mainly diatom-dominated blooms—occurred frequently in spring and slightly increased phytoplankton biomass in early autumn. The winter blooms were dominated by the diatom Thalassiosira nordenskioeldii and occurred in January or February. Long-term variation of the phytoplankton biomass demonstrated an increase of 1.5–2 times during the last 10 years. A self-organizing map (SOM) unsupervised neural network was used to characterize the phytoplankton distribution patterns based on environmental parameters. The SOM, which included ten environmental parameters, classified the study stations into four main groups based on their environmental parameters, reflecting seasonal characteristics. Our results illustrated that phytoplankton biomass had a seasonal variation according to physico-chemical environmental parameters in Gyeonggi Bay, and was also influenced by massive input of anthropogenic substances from river and tributaries as well as human activities. This research was a part of the project entitled ”Development of Forecasting Technology for Seawater Circulation and Ecosystem Change“ funded by the Ministry of Land, Transport and Maritime Affairs, Korea.
Radiative decays at LHCb
Creators: name: Mayordomo, Carlos Sanchez
Publisher: name: Zenodo
Year: 2019

description: Radiative b-decays can access the photon polarization, a complementary approach to probe the Standard Model, since the observation of right-handed currents would be a clear signature of New Physics. This talk presents the LHCb measurements related to the photon polarization in b->sgamma transitions, from both angular and time-dependent analyses.
Onthophagus caesariatus Boucomont 1921
Creators: name: Kharel, Bhim Prasad
name: Schoolmeester, Paul
name: Sarkar, Subhankar Kumar
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Onthophagus
Onthophagus caesariatus

description: 28 Onthophagus caesariatus Boucomont, Kerala No record found Arrow 1931;Thomas et al.2011 1921
description: Published as part of Kharel, Bhim Prasad, Schoolmeester, Paul & Sarkar, Subhankar Kumar, 2020, A first faunistic account on the Onthophagus Latreille, 1802 (Coleoptera, Scarabaeidae, Scarabaeinae) of the Nadia district, West Bengal, with a preliminary checklist from India, pp. 361-381 in Check List 16 (2) on page 375, DOI: 10.15560/16.2.361
2D Lattice Liquid Models
Creators: name: Ishimoto, Yukitaka
name: Murashima, Takahiro
name: Taniguchi, Takashi
name: Yamamoto, Ryoichi
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A family of novel models of liquid on a 2D lattice (2D lattice liquid models) have been proposed as primitive models of soft-material membrane. As a first step, we have formulated them as single-component, single-layered, classical particle systems on a two-dimensional surface with no explicit viscosity. Among the family of the models, we have shown and constructed two stochastic models, a vicious walk model and a flow model, on an isotropic regular lattice and on the rectangular honeycomb lattice of various sizes. In both cases, the dynamics is governed by the nature of the frustration of the particle movements. By simulations, we have found the approximate functional form of the frustration probability, and peculiar anomalous diffusions in their time-averaged mean square displacements in the flow model. The relations to other existing statistical models and possible extensions of the models are also discussed.
description: REVTeX4, 14 pages in double colomn, 12 figures; added references with some comments, typos fixed
Barriers in Concurrent Separation Logic: Now With Tool Support!
Creators: name: Hobor, Aquinas
name: Gherghina, Cristian
Publisher: name: arXiv
Year: 2012
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: D.1.3 , D.2.1 D.2.4, D.4.4, F.3.1, F.3.3, F.4.1, F.4.3

description: We develop and prove sound a concurrent separation logic for Pthreads-style barriers. Although Pthreads barriers are widely used in systems, and separation logic is widely used for verification, there has not been any effort to combine the two. Unlike locks and critical sections, Pthreads barriers enable simultaneous resource redistribution between multiple threads and are inherently stateful, leading to significant complications in the design of the logic and its soundness proof. We show how our logic can be applied to a specific example program in a modular way. Our proofs are machine-checked in Coq. We showcase a program verification toolset that automatically applies the logic rules and discharges the associated proof obligations.
title: Bile metabolites of polycyclic aromatic hydrocarbons (PAHs) as a biomarker of pollution in European eel (Anguilla anguilla) from German rivers
Creators: name: Nagel, F.
name: Kammann, U.
name: Hanel, R.
Publisher: name: ASC 2010 - Theme session F
Year: 2024
Subjects: Ecosystem observation, processes and dynamics

description: No abstracts are to be cited without prior reference to the author.Polycyclic aromatic hydrocarbons (PAHs) and their metabolites are important environmental contaminants that may lead to increased levels of neoplastic aberrations or tumours in fish liver. Therefore, PAHs and their metabolites in fish bile can be used as biomarkers of PAH exposure in the aquatic environment. The aim of the present study was to examine PAH metabolites in the bile of European eel (Anguilla anguilla) from 12 rivers in Germany to investigate the concentrations of PAH metabolites and to elucidate spatial differences. In total, 180 yellow eels (15 eels per river) were collected at downstream sites of the rivers Rhine, Elbe, Havel, Oder, Uecker, Weser, Ems, Schlei, Trave, Eider, Warnow, and Peene in 2009. The deconjugated PAH metabolites in the eel bile were analysed using HPLC with fluorescence detection and normalized to bile pigments. Three PAH metabolites were quantified: metabolites of pyrene, phenanthrene, and benzopyrene. Concentrations of PAH metabolites varied significantly between the rivers. For example, we determined low PAH metabolite concentrations for the Rhine and the Uecker, moderate levels of contamination for the Elbe and the Oder, and a significant accumulation of biliary PAH metabolites in eels from the Trave compared with eel bile from the Uecker and the Rhine. This study presents the first comprehensive investigation of PAH pollution in eels from German rivers and could help to discuss stock assessment of European eel in the light of spawner quality.
A relativistic non-relativistic Goldstone theorem: gapped Goldstones at finite charge density
Creators: name: Nicolis, Alberto
name: Piazza, Federico
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Other Condensed Matter (cond-mat.other)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We adapt the Goldstone theorem to study spontaneous symmetry breaking in relativistic theo- ries at finite charge density. It is customary to treat systems at finite density via non-relativistic Hamiltonians. Here we highlight the importance of the underlying relativistic dynamics. This leads to seemingly new results whenever the charge in question is spontaneously broken and does not commute with other broken charges. We find that that the latter interpolate gapped excitations. In contrast, all existing versions of the Goldstone theorem predict the existence of gapless modes. We derive exact non-perturbative expressions for their gaps, in terms of the chemical potential and of the symmetry algebra.
description: 5 pages. v2: minor modifications, matches the PRL version
title: The effect of biological peculiarities of fish on contaminationwith heavy metals: a case study of perch (Perca fluviatilis) in Estonian coastal sea
Creators: name: Järv, Leili
name: Simm, Mart
name: Fuchs, Kristiina
name: Raid, Tiit
Publisher: name: ASC 2010 - Theme session F
Year: 2024
Subjects: Ecosystem observation, processes and dynamics

description: No abstracts are to be cited without prior reference to the author.The concentration of Hg, Cd, Cu, and Zn in perch tissues has been studied in Estonian coastal seas (the northeastern Baltic) since 2002. The aim of the present study, covering 2006–2008, was to explore the possible effects of some basic biological parameters (age, length, sex, maturity) on contamination with heavy metals of perch liver and muscle tissues. The results revealed higher cadmium, zinc, and copper content in the liver tissue while higher mercury concentration was found in the muscles. The differences were statistically significant. The concentration of heavy metals also differed between the sexes. The results indicate that males had significantly higher contamination rate in both studied tissues, which may indicate the stronger immune system of females. The contamination of perch with heavy metals seems to increase during the maturation process, which may be a result of more active feeding owing to enhanced energy needs (higher feeding rates). At the same time age did not have an effect on contamination except for mercury, the concentration of which increased with the age and length in both muscle and liver. In general, the concentration of the heavy metals studied in perch was low and did not exceed the safety limits established by the EU.
PACIAE 2.1: An updated issue of the parton and hadron cascade model PACIAE 2.0
Creators: name: Sa, Ben-Hao
name: Zhou, Dai-Mei
name: Yan, Yu-Liang
name: Dong, Bao-Guo
name: Cai, Xu
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We have updated the parton and hadron cascade model PACIAE 2.0 for relativistic nuclear collisions (cf. Comput. Phys. Comm. 183(2012)333) to the new issue of PACIAE 2.1. The PACIAE model is based on PYTHIA. In the PYTHIA model, once the generated particle/parton transverse momentum $p_T$ is randomly selected, its component of $[p_x,p_y]$ was originally put on the circle with radius $p_T$ randomly. It is now replaced by put on the circumference of ellipse with half major and minor axes of $p_T(1+δ_p)$ and $p_T(1-δ_p)$, respectively, in order to investigate better the transverse momentum anisotropy in final hadronic state.
description: 8 pages, 3 figures
The pleasures of hurting others : behavioral evidence for everyday sadism
Creators: name: Buckels, Erin Evelyn
Publisher: name: University of British Columbia
Year: 2012

description: Past research on malevolent personalities has centered on subclinical psychopathy, narcissism, and Machiavellianism, which together comprise the Dark Triad of personality. The present research introduces everyday sadism—-a dispositional tendency to take pleasure in others’ suffering—-as an additional dark personality operating in the subclinical domain. Two studies examined everyday sadism as a unique predictor of antisocial outcomes. Study 1 examined sadistic behaviors using a bug-killing paradigm. Participants chose between several noxious tasks, including, (1) killing bugs, (2) helping the experimenter kill bugs, (3) cleaning toilets, or (4) ice water pain tolerance. As expected, sadists were more likely to choose to kill bugs over the other tasks. Study 2 examined the relationship between sadism and aggression using a white noise aggression paradigm. When aggression was not costly, sadism, psychopathy, narcissism, low empathic concern, and low perspective-taking predicted unprovoked aggression. However, as expected, only sadists were willing to work to aggress against an innocent person. In both studies, sadism emerged as an independent predictor of antisocial behavior when controlling for its overlap with the Dark Triad. Together, these findings support the incorporation of everyday sadism into the new Dark Tetrad of personality.
Dynamics of Modified Chaplygin Gas in Brane World Scenario: Phase Plane Analysis
Creators: name: Rudra, Prabir
name: Debnath, Ujjal
name: Biswas, Ritabrata
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this work we investigate the background dynamics when dark energy is coupled to dark matter with a suitable interaction in the universe described by brane cosmology. Here DGP and the RSII brane models have been considered separately. Dark energy in the form of modified Chaplygin gas is considered. A suitable interaction between dark energy and dark matter is considered in order to at least alleviate (if not solve) the cosmic coincidence problem. The dynamical system of equations is solved numerically and a stable scaling solution is obtained. A significant attempt towards the solution of the cosmic coincidence problem is taken. The statefinder parameters are also calculated to classify the dark energy models. Graphs and phase diagrams are drawn to study the variations of these parameters. It is also seen that the background dynamics of modified Chaplygin gas is completely consistent with the notion of an accelerated expansion in the late universe. Finally, it has been shown that the universe in both the models follows the power law form of expansion around the critical point, which is consistent with the known results.
description: 14 pages, 14 figures
Onthophagus (Onthophagus) ceylonicus Harold 1859
Creators: name: Kharel, Bhim Prasad
name: Schoolmeester, Paul
name: Sarkar, Subhankar Kumar
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Onthophagus
Onthophagus ceylonicus

description: 34 Onthophagus (Onthophagus) ceylonicus Karnataka,Rajasthan,West Bengal Sri Lanka Harold 1859;Arrow 1931;Sewak 2006,2009a Harold,1859
description: Published as part of Kharel, Bhim Prasad, Schoolmeester, Paul & Sarkar, Subhankar Kumar, 2020, A first faunistic account on the Onthophagus Latreille, 1802 (Coleoptera, Scarabaeidae, Scarabaeinae) of the Nadia district, West Bengal, with a preliminary checklist from India, pp. 361-381 in Check List 16 (2) on page 376, DOI: 10.15560/16.2.361
Pion elastic and $(π^0,η,η')\toγγ^*$ transition form factors in a broad range of momentum transfers
Creators: name: Balakireva, Irina
name: Lucha, Wolfgang
name: Melikhov, Dmitri
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze $F_π(Q^2)$ and $F_{Pγ}(Q^2)$, $P=π,η,η'$, within the local-duality (LD) version of QCD sum rules, which allows one to obtain predictions for hadron form factors in a broad range of momentum transfers. To probe the accuracy of this approximate method, we consider, in parallel to QCD, a potential model: in this case, the exact form factors may be calculated from the solutions of the Schrödinger equation and confronted with the results from the quantum-mechanical LD sum rule. On the basis of our quantum-mechanical analysis we conclude that the LD sum rule is expected to give reliable predictions for $F_π(Q^2)$ and $F_{πγ}(Q^2)$ in the region $Q^2 \ge 5-6$ GeV$^2$. Moreover, the accuracy of the method improves rather fast with growing $Q^2$ in this region. For the pion elastic form factor, the data at small $Q^2$ indicate that the LD limit may be reached already at relatively low values of momentum transfers, $Q^2\approx 4-8$ GeV$^2$; we therefore conclude that large deviations from LD in the region $Q^2=20-50$ GeV$^2$ reported in some recent theoretical analyses seem unlikely. The data on the ($η,η')\toγγ^*$ form factors meet very well the expectations from the LD model. Surprisingly, the {\sc BaBar} results for the $π^0\toγγ^*$ form factor imply a violation of LD growing with $Q^2$ even at $Q^2\approx 40$ GeV$^2$, at odds with the $η,η'$ case and the experience from quantum mechanics.
description: 8 pages
title: Bioassay based on fish swimming behaviour for the marine environment: Short-term effects of pyrene on the sea bass (Dicentrarchus labrax)
Creators: name: Almeida, Joana R.
name: Gravato, Carlos
name: Guilhermino, Lúcia
Publisher: name: ASC 2010 - Theme session F
Year: 2024
Subjects: Ecosystem observation, processes and dynamics

description: No abstracts are to be cited without prior reference to the author.A new bioassay based on the swimming velocity of the sea bass (Dicentrarchus labrax) was developed to assess the sublethal biological effects of marine contaminants on pelagic fish. The bioassay was tested and validated using several common contaminants of the marine environment and the results obtained with the polycyclic aromatic hydrocarbon pyrene are reported here. Biochemical biomarkers involved in detoxification, antioxidative stress, neurotransmission, and oxidative damage were also determined. Pyrene significantly decreased the swimming velocity of sea bass juveniles at concentrations equal to or higher than 0.07 mg l–1. Some biomarkers demonstrated significant responses in exposed fish and significant correlations were found between these biochemical parameters and swimming velocity. The results obtained indicate that the bioassay is a powerful and low-cost tool for the assessment of the biological effects of environmental contaminants on pelagic fish, being also suitable for use in species other than the sea bass and allowing the simultaneous use of other effect criteria. Furthermore, in another study, this bioassay was successfully adapted to epibenthic marine fish using Pomatoschistus microps as model organism. Both methods are useful for monitoring the effects of contaminants and ecological risk assessment in the marine environment.
Non-Abelian toplogical superconductors from topological semimetals and related systems under superconducting proximity effect
Creators: name: Jiang, Jian-Hua
name: Wu, Si
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Non-Abelian toplogical superconductors are characterized by the existence of {zero-energy} Majorana fermions bound in the quantized vortices. This is a consequence of the nontrivial bulk topology characterized by an {\em odd} Chern number. It is found that in topological semimetals with a single two-bands crossing point all the gapped superconductors are non-Abelian ones. Such a property is generalized to related but more generic systems which will be useful in the search of non-Abelian superconductors and Majorana fermions.
Quantitative Analysis of the Disorder Broadening and the Intrinsic Gap for the $ν=5/2$ Fractional Quantum Hall State
Creators: name: Samkharadze, N.
name: Watson, J. D.
name: Gardner, G.
name: Manfra, M. J.
name: Pfeiffer, L. N.
name: West, K. W.
name: Csáthy, G. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report a reliable method to estimate the disorder broadening parameter from the scaling of the gaps of the even and major odd denominator fractional quantum Hall states of the second Landau level. We apply this technique to several samples of vastly different densities and grown in different MBE chambers. Excellent agreement is found between the estimated intrinsic and numerically obtained energy gaps for the $ν=5/2$ fractional quantum Hall state. Futhermore, we quantify, for the first time, the dependence of the intrinsic gap at $ν=5/2$ on Landau level mixing.
description: PRB 84, R121305 (2011)
Onthophagus cognatus Boucomont 1921
Creators: name: Kharel, Bhim Prasad
name: Schoolmeester, Paul
name: Sarkar, Subhankar Kumar
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Onthophagus
Onthophagus cognatus

description: 38 Onthophagus cognatus Boucomont, Arunachal Pradesh,Assam,Manipur Laos, Myanmar, Thailand Biswas and Chatterjee 1985;Sewak 2006;Tarasov 2010 1921
description: Published as part of Kharel, Bhim Prasad, Schoolmeester, Paul & Sarkar, Subhankar Kumar, 2020, A first faunistic account on the Onthophagus Latreille, 1802 (Coleoptera, Scarabaeidae, Scarabaeinae) of the Nadia district, West Bengal, with a preliminary checklist from India, pp. 361-381 in Check List 16 (2) on page 376, DOI: 10.15560/16.2.361
title: Neurotransmission, energy metabolism and moult-related biomarkers in the shore crab, Carcinus meanas, following cadmium exposure
Creators: name: Mesquita, Sofia
name: Gravato, Carlos
name: Guilhermino, Lúcia
name: Guimarães, Laura
Publisher: name: ASC 2010 - Theme session F
Year: 2024
Subjects: Ecosystem observation, processes and dynamics

description: No abstracts are to be cited without prior reference to the author.Cadmium is a potentially harmful heavy metal emitted to the aquatic environment through natural and anthropogenic sources. This study investigated the effects of cadmium exposure on several biomarker responses of the shore crab. Intermoult crabs were collected from a reference site (northwest Portugal) and, in the laboratory, they were exposed to cadmium at concentrations ranging from 0.003 to 2 mg l–1, for a 7-day period. At the end of the assay, muscle, epidermis, and hepatopancreas were isolated and several biomarkers involved in key physiological functions of the organisms were assessed: neurotoxicity (cholinesterase activity, ChE), energy metabolism (activity of the enzymes lactate dehydrogenase, LDH, and NADP+-dependent isocitrate dehydrogenase, IDH), phase II biotransformation (glutathione-S-transferases, GST), and in the moulting process (N-acetyl-β-glucosaminidase activity, NAGase). Some of the studied biomarkers revealed altered responses following exposure to cadmium. In particular, exposure to the test compound significantly inhibited NAGase activity in both the hepatopancreas (at all concentrations tested) and the skin (at 0.8 and 2 mg l–1). Because NAGase is an enzyme directly involved in the ecdysis process, these results suggest that exposure to cadmium may result in delayed moulting, and thus lead to serious impairments of development, growth, and reproduction processes in this species.
Critical exponents of the O(N) model in the infrared limit from functional renormalization
Creators: name: Nagy, S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We determined the critical exponent $ν$ of the scalar O(N) model with a strategy based on the definition of the correlation length in the infrared limit. The functional renormalization group treatment of the model shows that there is an infrared fixed point in the broken phase. The appearing degeneracy induces a dynamical length scale there, which can be considered as the correlation length. It is shown that the IR scaling behavior can account either for the Ising type phase transition in the 3-dimensional O(N) model, or for the Kosterlitz-Thouless type scaling of the 2-dimensional O(2) model.
description: final version, 7 pages 7 figures, to appear in Phys. Rev. D
Molecular mechanisms of Campylobacter jejuni survival : characterization of the CprRS two-component regulatory system and biofilm formation
Creators: name: Svensson, Sarah Lauren
Publisher: name: University of British Columbia
Year: 2013

description: Campylobacter jejuni is the leading cause of foodborne bacterial gastroenteritis in the developed world. Although illness is usually self-limiting, immunocompromised individuals are at risk for infections recalcitrant to antibiotic treatment. Prior infection with C. jejuni also correlates with serious sequelae such as Guillain-Barré syndrome. The success of C. jejuni as a zoonotic pathogen indicates it can adapt to varied conditions encountered during pathogenesis, despite apparent fastidiousness in the lab. Understanding how C. jejuni survives in common reservoirs may allow development of strategies to limit survival in infection reservoirs or during pathogenesis, and greatly reduce the impact of C. jejuni-mediated disease. A two-component regulatory system, (CprRS; Campylobacter planktonic growth regulation) was previously identified in a screen for genes that may be required for adaptation to the host. Subsequent characterization of CprRS has contributed to understanding of two themes related to C. jejuni survival: environmental gene regulation and biofilm formation. The CprR response regulator was essential for viability, and while the CprS sensor kinase was dispensable, a ΔcprS mutant showed significant phenotypic differences from WT. Initial characterization of ΔcprS using phenotypic and proteomic means provided evidence that CprRS affects phenomena related to biofilm formation. Further characterization of CprRS was undertaken through transcriptomics of ΔcprS, molecular analysis of CprR, and promoter analysis. The CprRS regulon suggests that the system may control aspects of the cell envelope, including expression of the HtrA periplasmic protease. Finally, subsequent analysis of the biofilm-enhanced ΔcprS mutant, together with epistatic analyses and analysis of WT C. jejuni under stress conditions, has provided insight into C. jejuni biofilm initiation, maturation, and physiology. A specific role for flagella in biofilm initiation was demonstrated, and lysis and extracellular DNA release during biofilm maturation was also observed. Furthermore, evidence that the C. jejuni biofilm lifestyle confers stress tolerance that is not present in planktonic counterparts was obtained. Characterization of CprRS has thus contributed to knowledge of both physiological and regulatory themes that provide C. jejuni, a pathogen which diverges from paradigms set out in model bacteria, with its surprising resilience during zoonosis, and has also identified novel targets for infection control.
The multi-messenger picture of compact object encounters: binary mergers versus dynamical collisions
Creators: name: Rosswog, S.
name: Piran, T.
name: Nakar, E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We explore the multi-messenger signatures of encounters between two neutron stars and between a neutron star and a stellar-mass black hole. We focus on the differences between gravitational wave driven binary mergers and dynamical collisions that occur, for example, in globular clusters. For both types of encounters we compare the gravitational wave and neutrino emission properties. We also calculate fallback rates and analyze the properties of the dynamically ejected matter. Last but not least we address the electromagnetic transients that accompany each type of encounter. The canonical nsns merger case ejects more than 1% of a solar mass of extremely neutron-rich ($Y_e\sim 0.03$) material, an amount that is consistent with double neutron star mergers being a major source of r-process in the galaxy. nsbh collisions eject very large amounts of matter ($\sim 0.15$ \msun) which seriously constrains their admissible occurrence rates. The compact object collision rate must therefore be less, likely much less, than 10% of the nsns merger rate. The radioactively decaying ejecta produce optical-UV "macronova" which, for the canonical merger case, peak after $\sim 0.4$ days with a luminosity of $\sim 10^{42}$ erg/s. nsns (nsbh) collisions reach up to 3 (7) times larger peak luminosities. The dynamic ejecta deposit a kinetic energy comparable to a supernova in the ambient medium. The canonical merger case releases approximately $2 \times 10^{50}$ erg, the most extreme (but likely rare) cases deposit kinetic energies of up to $10^{52}$ erg. The deceleration of this mildly relativistic material by the ambient medium produces long lasting radio flares. A canonical ns$^2$ merger at the detection horizon of advanced LIGO/Virgo produces a radio flare that peaks on a time scale of one year with a flux of $\sim$0.1 mJy at 1.4 GHz.
description: accepted for publication in MNRAS
Onthophagus (Altonthophagus) concolor Sharp 1878
Creators: name: Kharel, Bhim Prasad
name: Schoolmeester, Paul
name: Sarkar, Subhankar Kumar
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Onthophagus
Onthophagus concolor

description: 41 Onthophagus (Altonthophagus) concolor Himachal Pradesh,Jammu and Kashmir,Punjab, Afghanistan, Pakistan Arrow 1931;Chandra 2009;Sewak 2009a,2009b Sharp,1878 Rajasthan, Uttarakhand
description: Published as part of Kharel, Bhim Prasad, Schoolmeester, Paul & Sarkar, Subhankar Kumar, 2020, A first faunistic account on the Onthophagus Latreille, 1802 (Coleoptera, Scarabaeidae, Scarabaeinae) of the Nadia district, West Bengal, with a preliminary checklist from India, pp. 361-381 in Check List 16 (2) on page 376, DOI: 10.15560/16.2.361
Unusual quasars from the Sloan Digital Sky Survey selected by means of Kohonen self-organising maps
Creators: name: Meusinger, H.
name: Schalldach, P.
name: Scholz, R. -D.
name: der Au, A. in
name: Newholm, M.
name: de Hoon, A.
name: Kaminsky, B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We exploit the spectral archive of the Sloan Digital Sky Survey (SDSS) Data Release 7 to select unusual quasar spectra. The selection method is based on a combination of the power of self-organising maps and the visual inspection of a huge number of spectra. Self-organising maps were applied to nearly 10^5 spectra classified as quasars by the SDSS pipeline. Particular attention was paid to minimise possible contamination by rare peculiar stellar spectral types. We present a catalogue of 1005 quasars with unusual spectra. This large sample provides a useful resource for both studying properties and relations of/between different types of unusual quasars and selecting particularly interesting objects. The spectra are grouped into six types. All these types turn out to be on average more luminous than comparison samples of normal quasars after a statistical correction is made for intrinsic reddening. Both the unusual broad absorption line (BAL) quasars and the strong iron emitters have significantly lower radio luminosities than normal quasars. We also confirm that strong BALs avoid the most radio-luminous quasars. Finally, we create a sample of quasars similar to the two "mysterious" objects discovered by Hall et al. (2002) and briefly discuss the quasar properties and possible explanations of their highly peculiar spectra. (Abstract modified to match the arXiv format)
description: Added reference to section 6; a few typos corrected; corrections according to the version published in Astronomy and Astrophysics
Fractional domain walls from on-site softening in dipolar bosons
Creators: name: Wikberg, Emma
name: Larson, Jonas
name: Bergholtz, Emil J.
name: Karlhede, Anders
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study dipolar bosons in a 1D optical lattice and identify a region in parameter space---strong coupling but relatively weak on-site repulsion---hosting a series of stable charge-density-wave (CDW) states whose low-energy excitations, built from "fractional domain walls," have remarkable similarities to those of non-Abelian fractional quantum Hall states. Here, a conventional domain wall between translated CDW's may be split by inserting strings of degenerate, but inequivalent, CDW states. Outside these insulating regions, we find numerous supersolids as well as a superfluid regime. The mentioned phases should be accessible experimentally and, in particular, the fractional domain walls can be created in the ground state using single-site addressing, i.e., by locally changing the chemical potential.
description: 6 pages, 3 figures. Extended discussion. As published
Onthophagus devagiriensis Schoolmeesters & Thomas 2006
Creators: name: Kharel, Bhim Prasad
name: Schoolmeester, Paul
name: Sarkar, Subhankar Kumar
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Onthophagus
Onthophagus devagiriensis

description: 49 Onthophagus devagiriensis Kerala No record found Schoolmeesters and Thomas 2006 Schoolmeesters & Thomas,2006
description: Published as part of Kharel, Bhim Prasad, Schoolmeester, Paul & Sarkar, Subhankar Kumar, 2020, A first faunistic account on the Onthophagus Latreille, 1802 (Coleoptera, Scarabaeidae, Scarabaeinae) of the Nadia district, West Bengal, with a preliminary checklist from India, pp. 361-381 in Check List 16 (2) on page 376, DOI: 10.15560/16.2.361
title: A multilevel approach to understanding fisheries discards in Irish Waters
Creators: name: Viana, Mafalda
name: Graham, Norman
name: Wilson, James G.
name: Jackson, Andrew L.
Publisher: name: ASC 2010 - Theme session G
Year: 2024
Subjects: Technologies and data
Ecosystem observation, processes and dynamics

description: No abstracts are to be cited without prior reference to the author.A central challenge in fisheries is to understand the temporal and spatial variability of both fish populations and fishing behaviour in order to recognize relationships and patterns. Inequalities in the fish-discarding process can be described by the variation in discards within ICES divisions or métiers, but also between the different levels that comprise the sampling programme. Sampling discards in commercial fishing are associated with an intrinsically hierarchical relationship in which boxes of fish are sampled from hauls, which are grouped within multiple trips, performed by vessels which comprise the different fisheries from different areas. Using Bayesian multilevel analysis, this study describes and offers the potential to explain the discarding process in the different fishing areas around Ireland, taking into account the inherent hierarchical structure of the data. The results indicate that discards in different areas vary in a complex, non-linear manner such that the rank order of importance of variance components can differ across spatial scales. This suggests that different factors, including those describing temporal patterns, have varying influence across the spatial areas within Irish waters, which ultimately drive discards. Hierarchical models are a valuable method for analysing discard data and identifying inequalities and hence understanding drivers of high and low discards at different levels within the hierarchy.
Probe R-parity violating stop resonance at the LHeC
Creators: name: Hong-Tang, Wei
name: Ren-You, Zhang
name: Lei, Guo
name: Liang, Han
name: Wen-Gan, Ma
name: Xiao-Peng, Li
name: Ting-Ting, Wang
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We investigate the possibility of detecting single sqaurk production at the proposed LHeC collider, in the framework of R-parity violating supersymmetry. Taking advantage of the enhancement of the direct resonance production of squark and the distinctive kinematics distributions of $\tilde{q}\rightarrow l q$ two body decay final states, the LHeC provides excellent opportunities of probing R-violating $\hat{L}\hat{Q}\hat{D}$ interactions at unprecedented level compared to all the knowledge derived from indirect low energy nucleon measurements. If no apparent deviation from SM predictions on high invariant mass of muon and b-quark final states at the LHeC with 1$fb^{-1}$ data, the sensitivities on $\hat{L}\hat{Q}\hat{D}$ coupling constant $λ^{'}_{131} \times λ^{'}_{233}$ can be improved by nearly four orders, at energy scale about 100 GeV.
description: 9 pages, 8 figures
Onthophagus (Sunenaga) digitatus Arrow 1931
Creators: name: Kharel, Bhim Prasad
name: Schoolmeester, Paul
name: Sarkar, Subhankar Kumar
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Onthophagus
Onthophagus digitatus

description: 50 Onthophagus (Sunenaga) digitatus Rajasthan, Sikkim No record found Arrow 1931;Sewak 2009a,2009b Arrow,1931
description: Published as part of Kharel, Bhim Prasad, Schoolmeester, Paul & Sarkar, Subhankar Kumar, 2020, A first faunistic account on the Onthophagus Latreille, 1802 (Coleoptera, Scarabaeidae, Scarabaeinae) of the Nadia district, West Bengal, with a preliminary checklist from India, pp. 361-381 in Check List 16 (2) on page 376, DOI: 10.15560/16.2.361
title: What controls the spawning distribution of the Bay of Biscay anchovy: a multi-model approach
Creators: name: Loots, C.
name: Vaz, S.
name: Planque, B.
name: Koubbi, P.
name: Huret, M.
name: Petitgas, P.
Publisher: name: ASC 2010 - Theme session G
Year: 2024
Subjects: Technologies and data
Ecosystem observation, processes and dynamics

description: No abstracts are to be cited without prior reference to the author.Spawning is an important phase for short-lived species like anchovy (Engraulis encrasicolus) as it ensures the renewal of the population through the recruitment process. Data from the PELGAS (PELagiques GAScogne) surveys, taking place since 2000 in the Bay of Biscay, were used to identify the controls of anchovy spawning distribution. Six ecological concepts underlying fish distribution were taken into account. Two are external to the population—environment and site attachment—and four are internal to the population: spatial dependency, population size, demographic structure, and population memory. Each of these ecological hypotheses was represented by one or several explanatory variables that were related to both presence–absence and positive abundance of anchovy using generalized additive models. Models were evaluated into a multi-model approach framework using a distance measure between model predictions and real observations. The Akaike Information Criterion and the log-likelihood were used for measuring model adjustment and prediction capacity. Models were ranked and selected according to these distances and hypotheses that were present in selected models were determined as relevant to explaining spawning anchovy distribution. Presence–absence was mainly determined by physiologically constraining environmental conditions such as temperature and large-scale spatial dependency, whereas inside the areas of presence, positive abundances were determined by trophic conditions, suitable for the successive maturations of the gonads, and population structure such as age segregation patterns. The results of this study may show that homing could be a key mechanism that ensures a successful return of the adults to the same spawning areas year after year.
Matching three-point functions of BMN operators at weak and strong coupling
Creators: name: Grignani, Gianluca
name: Zayakin, A. V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The agreement between string theory and field theory is demonstrated in the leading order by providing the first calculation of the correlator of three two-impurity BMN states with all non-zero momenta. The calculation is performed in two completely independent ways: in field theory by using the large-$N$ perturbative expansion, up to the terms subleading in finite-size, and in string theory by using the Dobashi-Yoneya 3-string vertex in the leading order of the Penrose expansion. The two results come out to be completely identical.
description: 14 pages, 1 figure
Onthophagus falsus Gillet 1925
Creators: name: Kharel, Bhim Prasad
name: Schoolmeester, Paul
name: Sarkar, Subhankar Kumar
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Onthophagus
Onthophagus falsus

description: 60 Onthophagus falsus Gillet,1925 Arunachal Pradesh, Gujarat, Haryana,Himachal Afghanistan,Bangla- Arrow 1931;Chandra 2005;Sewak 2009a,2009b Chandra et Pradesh,Jammu and Kashmir, Karnataka, Kerala, desh, Kenya, Pakistan al.2012a,2012c;Karimbumkara and Priyadarsanan 2013; Anto Meghalaya, Punjab, Rajasthan, Uttarakhand, and Vinod 2017 Uttar Pradesh
description: Published as part of Kharel, Bhim Prasad, Schoolmeester, Paul & Sarkar, Subhankar Kumar, 2020, A first faunistic account on the Onthophagus Latreille, 1802 (Coleoptera, Scarabaeidae, Scarabaeinae) of the Nadia district, West Bengal, with a preliminary checklist from India, pp. 361-381 in Check List 16 (2) on page 376, DOI: 10.15560/16.2.361
Efficiency improvements for the numerical computation of NLO corrections
Creators: name: Becker, Sebastian
name: Reuschle, Christian
name: Weinzierl, Stefan
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper we discuss techniques, which lead to a significant improvement of the efficiency of the Monte Carlo integration, when one-loop QCD amplitudes are calculated numerically with the help of the subtraction method and contour deformation. The techniques discussed are: holomorphic and non-holomorphic division into sub-channels, optimisation of the integration contour, improvement of the ultraviolet subtraction terms, importance sampling and antithetic variates in loop momentum space, recurrence relations.
description: 34 pages, version to be published
Bifurcations in Boolean Networks
Creators: name: Kuhlman, Chris J.
name: Mortveit, Henning S.
name: Murrugarra, David
name: Kumar, V. S. Anil
Publisher: name: arXiv
Year: 2011
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: This paper characterizes the attractor structure of synchronous and asynchronous Boolean networks induced by bi-threshold functions. Bi-threshold functions are generalizations of classical threshold functions and have separate threshold values for the transitions 0 -> 1 (up-threshold) and 1 -> 0 (down-threshold). We show that synchronous bi-threshold systems may, just like standard threshold systems, only have fixed points and 2-cycles as attractors. Asynchronous bi-threshold systems (fixed permutation update sequence), on the other hand, undergo a bifurcation: when the difference Δof the down- and up-threshold is less than 2 they only have fixed points as limit sets. However, for Δ>= 2 they may have long periodic orbits. The limiting case of Δ= 2 is identified using a potential function argument. Finally, we present a series of results on the dynamics of bi-threshold systems for families of graph classes.
description: 18 pages, 4 figures, Discrete Mathematics and Theoretical Computer Science 2011
Onthophagus (Matashia) fossor Arrow 1931
Creators: name: Kharel, Bhim Prasad
name: Schoolmeester, Paul
name: Sarkar, Subhankar Kumar
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Onthophagus
Onthophagus fossor

description: 64 Onthophagus (Matashia) fossor Arrow, Sikkim Malaysia Arrow 1931 1931
description: Published as part of Kharel, Bhim Prasad, Schoolmeester, Paul & Sarkar, Subhankar Kumar, 2020, A first faunistic account on the Onthophagus Latreille, 1802 (Coleoptera, Scarabaeidae, Scarabaeinae) of the Nadia district, West Bengal, with a preliminary checklist from India, pp. 361-381 in Check List 16 (2) on page 377, DOI: 10.15560/16.2.361
Ḵ̓a̱ngex̱tola sewn-on-top : Kwak'wala revitalization and being indigenous
Creators: name: Rosborough, Patricia Christine
Publisher: name: University of British Columbia
Year: 2012

description: Kwak’wala, the language of the Kwakwa̱ka̱’wakw, like the languages of all Indigenous peoples of British Columbia, is considered endangered. Documentation and research on Kwak’wala began more than a century ago, and efforts to revitalize Kwak’wala have been under way for more than three decades. For Indigenous peoples in colonizing societies, language revitalization is a complex endeavour. Within the fields of language revitalization and Indigenous studies, the practices and policies of colonization have been identified as key factors in Indigenous language decline. This study deepens the understanding of the supports for and barriers to Kwak’wala revitalization. Emphasizing Indigenization as a key aspect of decolonization, the study explored the relationship between Kwak’wala learning and being Indigenous. The study was conducted through a Ḵ̓a̱ngex̱tola framework, an Indigenous methodology based on the metaphor of creating a button blanket, the ceremonial regalia of the Kwaka̱ka̱’wakw. The research has built understanding through the author’s experience as a Kwak’wala learner and the use of various approaches to language learning, including two years with the Master-Apprentice approach. The research employs the researcher’s journals and personal stories, as well as interviews with six individuals who are engaged in Kwak’wala revitalization. The study’s conclusion is that the complexity of the task of Kwak’wala revitalization requires a multifaceted approach by applying Indigenous principles to teaching and learning and must take into account the impacts of colonization. Further, it is important to sustain the spirit of the language by maintaining the literal and symbolic meanings and constructs of Kwak’wala that are important in the transmission and maintenance of Kwakwa̱ka̱’wakw culture. In addition, encouragement, safe environments and relationships for language work through explicit agreements and commitment, and clear language-acquisitions goals are identified as important supports for Kwak’wala learning and speaking. This research has led to an understanding of what supports the learning and speaking of Kwak’wala, which will assist others in their own language learning and the development of Indigenizing language revitalization programs.
Renormalization-group calculation of the superfluid/normal-fluid interface of liquid 4He in gravity near T_lambda
Creators: name: Haussmann, Rudolf
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The superfluid/normal-fluid interface of liquid 4He is investigated in gravity on earth where a small heat current Q flows vertically upward or downward. We present a local space- and time-dependent renormalization-group (RG) calculation based on model F which describes the dynamic critical effects for temperatures T near the superfluid transition T_lambda. The model-F equations are rewritten in a dimensionless renormalized form and solved numerically as partial differential equations. Perturbative corrections are included for the spatially inhomogeneous system within a self-consistent one-loop approximation. The RG flow parameter is determined locally as a function of space and time by a constraint equation which is solved by a Newton iteration. As a result we obtain the temperature profile of the interface. Furthermore we calculate the average order parameter , the correlation length xi, the specific heat C_Q and the thermal resistivity rho_T where we observe a rounding of the critical singularity by the gravity and the heat current. We compare the thermal resistivity with an experiment and find good qualitative agreement. Moreover we discuss our previous approach for larger heat currents and the self-organized critical state and show that our theory agrees with recent experiments in this latter regime.
description: 24 pages, 7 figures