cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Quantum Computing with Neutral Atoms in an Optical Lattice
Creators: name: Deutsch, Ivan H.
name: Brennen, Gavin K.
name: Jessen, Poul S.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a proposal for quantum information processing with neutral atoms trapped in optical lattices as qubits. Initialization and coherent control of single qubits can be achieved with standard laser cooling and spectroscopic techniques. We consider entangling two-qubit logic gates based on optically induced dipole-dipole interactions, calculating a figure-of-merit for various protocols. Massive parallelism intrinsic to the lattice geometry makes this an intriguing system for scalable, fault-tolerant quantum computation.
description: Submitted to the Speical Issue of "Forschritte der Physik" on Physical Implentations of Quantum Computing. (One PdF file)
title: A partial ecosystem approach to fish community modelling
Creators: name: Guirey, E.J.
name: Speirs, D.C.
name: Gurney, W.S.C.
Publisher: name: ASC 2008 - Theme session F
Year: 2024
Subjects: Ecosystem observation, processes and dynamics
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author.We present a dynamic, physiologically-structured, multi-species fish ecosystem model developed to investigate the impacts of changes in fishing pressure on community structure. The modelling approach recognises that many marine ecosystem processes are a function primarily of the size of the organisms involved. Individual fish are classified by length and species. The inter-connected processes of growth, predator-prey interactions, mortality and reproduction are parameterised in the model by length and aim to capture the major processes shaping the fish community. In order to simplify the complex ecosystem of which fish are a part, detail of representation is greatest for the focal fish species, where “focal” depends on the questions being asked of the model, and increasing reduction in biological detail is made up and down the trophic scale away from the focal species. Hence, fish species are modelled as size-structured while significant sources of prey and predation (e.g. zooplankton and benthos) are modelled dynamically but unstructured. Although developed for the North Sea fish community, the general approach is applicable to any region; the model has the potential to be a tool both for exploring the response of an “abstract” fish community to changes in fishing pressure and for making quantitative predications for a particular region and, as such, is in support of the drive towards an ecosystem approach to fisheries management.
Error Exponents and Cutoff Rate for Noncoherent Rician Fading Channels
Creators: name: Gursoy, Mustafa Cenk
Publisher: name: arXiv
Year: 2006
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper, random coding error exponents and cutoff rate are studied for noncoherent Rician fading channels, where neither the receiver nor the transmitter has channel side information. First, it is assumed that the input is subject only to an average power constraint. In this case, a lower bound to the random coding error exponent is considered and the optimal input achieving this lower bound is shown to have a discrete amplitude and uniform phase. If the input is subject to both average and peak power constraints, it is proven that the optimal input achieving the random coding error exponent has again a discrete nature. Finally, the cutoff rate is analyzed, and the optimality of the single-mass input amplitude distribution in the low-power regime is discussed.
description: To appear in the IEEE International Conference on Communications, 2006
title: Transnational Constitutionalism – Conflicts‐Law Constitutionalism – Economic Constitutionalism: The Exemplary Case of the European Union
Creators: name: Joerges, Christian
Publisher: name: Hertie School
Year: 2024

description: Transnational Constitutionalism is a sociological given and a legal challenge. We observe the emergence of ever more legally-framed transnational arrangements with ever more power and impact. Does this kind of rule ‘deserve recognition’? Is it at all conceivable that the proprium of law can be defended against the rise of its informal competitors? This essay opts for a third way which neither listens to the siren songs on law beyond the state nor to the defences of nation-state constitutionalism as the monopolist of legitimate rule. The alternative submitted suggests that transnational legal ordering of the EU should build upon its re-conceptualisation as a ‘three-dimensional conflicts-law’ with a democracy-enhancing potential. This re-construction operationalises the ‘united in diversity’ motto of the Draft Constitutional Treaty of 2004. It preserves essential accomplishments of Europe’s constitutional democracies. It provides for co-operative problem-solving of transnational regulatory tasks, and it retains supervisory powers over national and transnational arrangements of private governance.
title: Recruitment and Production of the blue mussel on navigation buoys in the St. Lawrence system (Estuary and Gulf)
Creators: name: Belanger, V.
name: Archambault, P.
name: Guichard, F.
name: Jonhson, L E.
Publisher: name: ASC 2008 - Theme session H
Year: 2024
Subjects: Fisheries and aquaculture

description: No abstracts are to be cited without prior reference to the author.Objective: Determine relationships between recruitment parameters (density, biomass and size frequency) and key environmental factors such as temperature, salinity, chlorophyll a and currents over a large spatial scale
title: Farmed mussel biodeposit production and dose-dependent influence on benthic communities
Creators: name: McKindsey, Christopher W.
name: Callier, Myriam D.
name: Archambault, Philippe
name: Weise, Andrea M.
Publisher: name: ASC 2008 - Theme session H
Year: 2024
Subjects: Fisheries and aquaculture

description: No abstracts are to be cited without prior reference to the author.Much work has examined the influence of benthic loading from suspended bivalve culture on benthic infaunal communities. However, little effort has been directed at determining the production of biodeposits and dose-dependent effects of biodeposition on such communities. A study was done to determine the mussel size-dependent production of biodeposits in situ and characterize biodeposit sedimentation dynamics. Based on the results of this study, an in situ manipulative experiment was done to evaluate the dose-dependent response of biodeposition on sandy benthic infaunal community structure. Benthic communities sampled with sediment cores were used to create mesocosms which were exposed over 50 days to 7 different levels of mussel biodeposition by varying the densities of mussels (0, 1, 2, 3, 4, 5, 6 mussels, equivalent to 0, 127, 255, 382, 510, 637 and 764 mussels m-2). Benthic communities responded as would be predicted from the Pearson & Rosenberg (1978) model of organic enrichment. The abundance and biomass of opportunistic species (Capitella sp.) were observed to increase in the mesocosms exposed to the highest mussel density. Sensitive species such as Tellina agilis and Pherusa plumosa tended to decrease in abundance and biomass with increasing mussel density. These results are discussed with respect to their importance to predictive ecological modelling for bivalve aquaculture.
Time resolved 2 million year old supernova activity discovered in Earth's microfossil record
Creators: name: Ludwig, Peter
name: Bishop, Shawn
name: Egli, Ramon
name: Chernenko, Valentyna
name: Deneva, Boyana
name: Faestermann, Thomas
name: Famulok, Nicolai
name: Fimiani, Leticia
name: Gomez-Guzman, Jose Manuel
name: Hain, Karin
name: Korschinek, Gunther
name: Hanzlik, Marianne
name: Merchel, Silke
name: Rugel, Georg
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Massive stars, which terminate their evolution as core collapse supernovae, are theoretically predicted to eject more than 1E-5 solar masses of the radioisotope 60Fe. If such an event occurs sufficiently close to our solar system, traces of the supernova debris could be deposited on Earth. Herein, we report a time resolved 60Fe signal residing, at least partially, in a biogenic reservoir. Using accelerator mass spectrometry, this signal was found through the direct detection of live 60Fe atoms contained within secondary iron oxides, among which are magnetofossils, the fossilized chains of magnetite crystals produced by magnetotactic bacteria. The magnetofossils were chemically extracted from two Pacific Ocean sediment drill cores. Our results show that the 60Fe signal onset occurs around 2.6 Ma to 2.8 Ma, near the lower Pleistocene boundary, terminates around 1.7 Ma, and peaks at about 2.2 Ma.
description: Figures from the Supplementary Information are not included due to file size restrictions. Download the, now open access, original article for those details (see doi)
title: Projecting Equilibrium, Mixed-species Yield of New England Groundfish
Creators: name: Jacobson, Nikki
name: Cadrin, Steve
Publisher: name: ASC 2008 - Theme session I
Year: 2024
Subjects: Fisheries and aquaculture
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author.New England groundfish are harvested in multispecies fisheries and are managed under a single Fishery Management Plan. Current practice is to determine fishing limits through single-species projection models that allow for stock rebuilding or sustainable yield. Effectiveness of alternative harvest scenarios for achieving management targets is then evaluated using multispecies patterns of catch per effort, by season and location. However, the current mixed-species analyses are static, in that they do not project population dynamics. Our approach incorporates the dynamic aspects of single-species projections with technological interactions for multispecies evaluations. The computational approach extends a traditional (but seldom applied) mixed-species yieldper-recruit model by incorporating stock-recruitment relationships. This equilibrium multispecies projection approach provides the first step towards a non-equilibrium, shortterm evaluation of alternative management scenarios to achieve stock rebuilding and sustainable yield targets.
Static and dynamic measures of human brain connectivity predict complementary aspects of human cognitive performance
Creators: name: Ramos-Nuñez, Aurora I.
name: Fischer-Baum, Simon
name: Martin, Randi
name: Yue, Qiuhai
name: Ye, Fengdan
name: Deem, Michael W.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: In cognitive network neuroscience, the connectivity and community structure of the brain network is related to cognition. Much of this research has focused on two measures of connectivity - modularity and flexibility - which frequently have been examined in isolation. By using resting state fMRI data from 52 young adults, we investigate the relationship between modularity, flexibility and performance on cognitive tasks. We show that flexibility and modularity are highly negatively correlated. However, we also demonstrate that flexibility and modularity make unique contributions to explain task performance, with modularity predicting performance for simple tasks and flexibility predicting performance on complex tasks that require cognitive control and executive functioning. The theory and results presented here allow for stronger links between measures of brain network connectivity and cognitive processes.
description: 37 pages; 7 figures
SU(5) Monopoles and the Dual Standard Model
Creators: name: Liu, Hong
name: Vachaspati, Tanmay
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We find the spectrum of magnetic monopoles produced in the symmetry breaking SU(5) to [SU(3)\times SU(2)\times U(1)']/Z_6 by constructing classical bound states of the fundamental monopoles. The spectrum of monopoles is found to correspond to the spectrum of one family of standard model fermions and hence, is a starting point for constructing the dual standard model. At this level, however, there is an extra monopole state - the ``diquark'' monopole - with no corresponding standard model fermion. If the SU(3) factor now breaks down to Z_3, the monopoles with non-trivial SU(3) charge get confined by strings in SU(3) singlets. Another outcome of this symmetry breaking is that the diquark monopole becomes unstable (metastable) to fragmentation into fundamental monopoles and the one-one correspondence with the standard model fermions is restored. We discuss the fate of the monopoles if the [SU(2)\times U(1)']/Z_2 factor breaks down to U(1)_Q by a Higgs mechanism as in the electroweak model. Here we find that monopoles that are misaligned with the vacuum get connected by strings even though the electroweak symmetry breaking does not admit topological strings. We discuss the lowest order quantum corrections to the mass spectrum of monopoles.
description: 29 pages, Latex; clarifying remarks in various sections plus change in discussion of monopole spin. To be published in Phys. Rev. D
Sonograms of Pipistrellus c.f. kulli and Hypsugo c.f. savii recorded in Cabo Verde Islands
Creators: name: Vasconcelos, Raquel
Publisher: name: figshare
Year: 2018
Subjects: subject: 60801 Animal Behaviour
subject: FOS: Biological sciences

description: Vasconcelos (2018). Bibliographic revision and new records of bats (Chiroptera) for Cabo Verde Archipelago. Zoologia Caboverdiana 7, 3–11.
Maximally entangled mixed states in two qubits
Creators: name: Ishizaka, Satoshi
name: Hiroshima, Tohya
Publisher: name: arXiv
Year: 2000
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose novel mixed states in two qubits, ``maximally entangled mixed states'', which have a property that the amount of entanglement of these states cannot be increased further by applying any unitary operations. The property is proven when the rank of the states is less than 4, and confirmed numerically in the other general cases. The corresponding entanglement of formation specified by its eigenvalues gives an upper bound of that for density matrices with same eigenvalues.
description: 4 pages, 3 figures
Implicit Association Effects between Sound and Food Images: Supplementary Material
Creators: name: Padulo, Caterina
name: Tommasi, Luca
name: Brancucci, Alfredo
Publisher: name: Brill Online
Year: 2018
Subjects: subject: 170299 Cognitive Science not elsewhere classified
subject: FOS: Psychology
subject: 170112 Sensory Processes, Perception and Performance

description: A growing body of empirical research documents the existence of several interesting crossmodal correspondences between auditory and gustatory/flavor stimuli, demonstrating that people can match specific acoustic and musical parameters with different tastes and flavors. In this context, a number of researchers and musicians arranged their own soundtracks so as to match specific tastes and used them for research purposes, revealing explicit crossmodal effects on judgments of taste comparative intensity or of taste/sound accordance. However, only few studies have examined implicit associations related to taste–sound correspondences. Thus, the present study was conducted in order to assess possible implicit effects associated to the crossmodal congruency/incongruency between auditory cues and food images during the classification of food tastes. To test our hypothesis, we used ‘salty’ and ‘sweet’ soundtracks with salty and sweet food images, and asked 88 participants to classify the taste of each food image while listening to the soundtracks. We found that sweet food images were classified faster than salty food images, regardless of which soundtrack was presented. Moreover, we found a congruency effect, demonstrating that such soundtracks are effective in eliciting facilitating effects of taste quality classification with congruent food images.
Relativistic corrections to fractal analyses of the galaxy distribution
Creators: name: Célérier, Marie-Noëlle
name: Thieberger, Reuben
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The effect of curvature on the results of fractal analyses of the galaxy distribution is investigated. We show that, if the universe satisfies the criteria of a wide class of parabolic homogeneous models, the observers measuring the fractal index with the integrated conditional density procedure may use the Hubble formula, without having to allow for curvature, out to distances of 600 Mpc, and possibly far beyond. This contradicts a previous claim by Ribeiro (1995) that, in the Einstein-de Sitter case, relativistic corrections should be taken into account at much smaller scales. We state for the class of cosmological models under study, and give grounds for conjecture for others, that the averaging procedure has a smoothing effect and that, therefore, the redshift-distance relation provides an upper limit to the relativistic corrections involved in such analyses.
description: 9 LaTeX pages, accepted for publication in Astronomy and Astrophysics 14 November 2000
Master equation for the degree distribution of a Duplication and Divergence network
Creators: name: Sudbrack, Vítor
name: Brunnet, Leonardo G.
name: de Almeida, Rita M. C.
name: Ferreira, Ricardo M.
name: Gamermann, Daniel
Publisher: name: arXiv
Year: 2017
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Molecular Networks (q-bio.MN)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Network growth as described by the Duplication-Divergence model proposes a simple general idea for the evolution dynamics of natural networks. In particular it is an alternative to the well known Barabási-Albert model when applied to protein-protein interaction networks. In this work we derive a master equation for the node degree distribution of networks growing via Duplication and Divergence and we obtain an expression for the total number of links and for the degree distribution as a function of the number of nodes. Using algebra tools we investigate the degree distribution asymptotic behavior. Analytic results show that the network nodes average degree converges if the total mutation rate is greater than 0.5 and diverges otherwise. Treating original and duplicated node mutation rates as independent parameters has no effect on this result. However, difference in these parameters results in a slower rate of convergence and in different degree distributions. The more different these parameters are, the denser the tail of the distribution. We compare the solutions obtained with simulated networks. These results are in good agreement with the expected values from the derived expressions. The method developed is a robust tool to investigate other models for network growing dynamics.
description: 8 Figures
Kapitza thermal resistance across individual grain boundaries in graphene
Creators: name: Azizi, Khatereh
name: Hirvonen, Petri
name: Fan, Zheyong
name: Harju, Ari
name: Elder, Ken R
name: Ala-Nissila, Tapio
name: Allaei, S Mehdi Vaez
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study heat transport across individual grain boundaries in suspended monolayer graphene using extensive classical molecular dynamics (MD) simulations. We construct bicrystalline graphene samples containing grain boundaries with symmetric tilt angles using the two-dimensional phase field crystal method and then relax the samples with MD. The corresponding Kapitza resistances are then computed using nonequilibrium MD simulations. We find that the Kapitza resistance depends strongly on the tilt angle and shows a clear correlation with the average density of defects in a given grain boundary, but is not strongly correlated with the grain boundary line tension. We also show that quantum effects are significant in quantitative determination of the Kapitza resistance by applying the mode-by-mode quantum correction to the classical MD data. The corrected data are in good agreement with quantum mechanical Landauer-Bütticker calculations.
description: 8 pages, 7 figures
Supersymmetry, p-brane duality and hidden space and time dimensions
Creators: name: Bars, Itzhak
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A global superalgebra with 32 supercharges and all possible central extensions is studied in order to extract some general properties of duality and hidden dimensions in a theory that treats $p$-branes democratically. The maximal number of dimensions is 12, with signature (10,2), containing one space and one time dimensions that are hidden from the point of view of perturbative 10-dimensional string theory or its compactifications. When the theory is compactified on $R^{d-1,1}\otimes T^{c+1,1}$ with $d+c+2=12,$ there are isometry groups that relate to the hidden dimensions as well as to duality. Their combined classification schemes provide some properties of non-perturbative states and their couplings.
description: Latex, 18 pages. Eqs.(21),(22) corrected and made consistent with Table I
Supplementary Material for: Completion Thyroidectomy: Safer than Thought
Creators: name: Gulcelik, Mehmet A.
name: Dogan, Lutfi
name: H. Erhan Güven
name: Gokhan G. Akgul
name: Nes¸E Ersöz Gulceli
Publisher: name: Karger Publishers
Year: 2018
Subjects: Medicine

description: Background: The aim of this study was to find out whether a substantial difference in terms of complication rates exists between primary and completion thyroidectomies following initial bilateral subtotal thyroidectomy in the light of current literature and our series. Patients and Methods: Total number of 696 patients who received completion thyroidectomy (Group 1, n = 289) and total thyroidectomy for differentiated thyroid cancer (Group 2, n = 407) and their data were reviewed and postoperative complications were compared between the groups and with the literature. Results: Transient and permanent hypocalcaemia rates were 20% and 5.8% in Group 1 and 10.5% and 5.1% for Group 2 respectively. Unilateral transient, bilateral transient and unilateral permanent recurrent laryngeal nerve palsy rates were 6.2%, 1.3% and 4.4% for patients in Group 1 whereas same complications were seen in 4.6%, 0.7% and 3.6% of patients in Group 2. When groups were compared for complications; temporary hypocalcaemia, unilateral temporary nerve palsy, and minor wound infection rates were statistically higher in Group 1, with no significant difference in permanent complications. Conclusion: When complication rates of re-operation after bilateral subtotal thyroidectomy and primary total thyroidectomy for differentiated thyroid cancer were compared in an unbiased fashion, completion thyroidectomy was shown to be as safe as a primary operation with regard to permanent complications.
Factoring the unitary evolution operator and quantifying entanglement
Creators: name: Yi, X. X.
name: Sun, C. P.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The unitary evolution can be represented by a finite product of exponential operators. It leads to a perturbative expression of the density operator of a close system. Based on the perturbative expression scheme, we present a entanglement measure, this measure has the advantage that it is easy to compute for a general dynamical process.
description: 11 pages, LATEX, no figures
Extra-galactic distances with massive stars: the role of stellar variability in the case of M33
Creators: name: Lee, Chien-Hsiu
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In modern cosmology, determining the Hubble constant (H0) using distance ladder to percent level and comparing with the results from Planck satellite can shed light on the nature of the dark energy, the physics of neutrino, and the curvature of the universe. Thanks to the endeavor of the SH0ES team, the uncertainty of the H0 has be dramatically reduced from 10% to 2.4%, with the promise to reach even 1% in the near future. In this regard, it is fundamentally important to beat and investigate the systematics. This is best be done with other independent good distance indicators. One of the promising method is the flux-weighted gravity luminosity relation (FGLR) of the blue supergiants. As the blue supergiants are the brightest objects in the galaxies, they can probe distance up to 10 Mpc, with negligible blending effects. While the FGLR method delivered distance in good agreement with other distance indicators, it has been shown that this method delivers larger distance in the case of M33 and NGC 55. Here we investigate whether the M33 distance estimate of FGLR suffers systematics from stellar variability. Using CFHT M33 monitoring data, we found 9 out of 22 BSGs showed variability during the course of 500 days, however with amplitudes as small as 0.05 magnitudes. This suggests that stellar variability plays negligible role in the FGLR distance determination.
description: 5 pages, 1 figure, 1 table, AJ accepted
A Note on Parallel Asynchronous Channels with Arbitrary Skews
Creators: name: Kovačević, Mladen
Publisher: name: arXiv
Year: 2017
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences
subject: 94A24, 94B50

description: A zero-error coding scheme of asymptotic rate $ \log_2 (1+\sqrt{5}) - 1 $ was recently described for a communication channel composed of parallel asynchronous lines satisfying the so-called no switch assumption. We prove that this is in fact the highest rate attainable, i.e., the zero-error capacity of this channel.
Dirac cones in Two-dimensional Borane
Creators: name: Martinez-Canales, Miguel
name: Galeev, Timur R.
name: Boldyrev, Alexander I.
name: Pickard, Chris J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We introduce two-dimensional borane, a single-layered material of BH stoichiometry, with promising electronic properties. We show that, according to Density Functional Theory calculations, two-dimensional borane is semimetallic, with two symmetry-related Dirac cones meeting right at the Fermi energy $E_f$. The curvature of the cones is lower than in graphene, thus closer to the ideal linear dispersion. Its structure, formed by a puckered trigonal boron network with hydrogen atoms connected to each boron atom, can be understood as distorted, hydrogenated borophene (Science \textbf{350}, 1513 (2015)). Chemical bonding analysis reveals the boron layer in the network being bound by delocalized four-center two-electron $σ$ bonds. Finally, we suggest high-pressure could be a feasible route to synthesise two-dimensional borane.
description: 5 pages, 3 figures, 1 table
Aligned Virtual Coordinates for Greedy Routing in WSNs
Creators: name: Liu, Ke
name: Abu-Ghazaleh, Nael
Publisher: name: arXiv
Year: 2006
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Geographic routing provides relatively good performance at a much lower overhead than conventional routing protocols such as AODV. However, the performance of these protocols is impacted by physical voids, and localization errors. Accordingly, virtual coordinate systems (VCS) were proposed as an alternative approach that is resilient to localization errors and that naturally routes around physical voids. However, we show that VCS is vulnerable to different forms of the void problem and the performance of greedy routing on VCS is worse than that of geographic forwarding. We show that these anomalies are due to the integral nature of VCS, which causes quantization noise in the estimate of connectivity and node location. We propose an aligned virtual coordinate system (AVCS) on which the greedy routing success can be significantly improved. With our approach, and for the first time, we show that greedy routing on VCS out-performs that on physical coordinate systems even in the absence of localization errors. We compare AVCS against some of the most popular geographical routing protocols both on physical coordinate system and the virtual coordinate systems and show that AVCS significantly improves performance over the best known solutions.
title: The relative weight of traditions, economics and catch plans in New Zealand fleets dynamics
Creators: name: Marchal, Paul
name: Lallemand, Philippe
name: Stokes, Kevin
Publisher: name: ASC 2008 - Theme session I
Year: 2024
Subjects: Fisheries and aquaculture
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author.We investigate the relative weights of catch plans, expected profit and traditions in fishers decision-making for five contrasted New Zealand fleets subject to an Individual Transferable Quota (ITQ) management regime. Several métiers were defined for these fleets, using two different typologies. A nested logit RUM (Random Utility Models) was used to model the métier allocation of fishing effort in relation to catch plans, expected profit and past fishing allocations. This study showed that traditions and catch plans, which appeared to be determined to a large extent by an annual strategy, were the most important determinants of fishers behavior in the case of the New Zealand fleets being investigated. The model developed in this study fitted the data generally well, and was also able to predict in most cases future effort allocation both one month and one year ahead
Exploring the Moduli Space of (0,2) Strings
Creators: name: Blumenhagen, Ralph
name: Wisskirchen, Andreas
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We use an exactly solvable (0,2) supersymmetric conformal field theory with gauge group SO(10) to investigate the superpotential of the corresponding classical string vacuum. We provide evidence that the rational point lies in the Landau-Ginzburg phase of the linear sigma-model and calculate exactly all three- and four-point functions of the gauge singlets. These couplings already put severe constraints on the possible flat directions of the superpotential. Finally, we contemplate about the flat direction related to Kahler deformations of the underlying linear sigma-model.
description: 19 pages, plain TeX, 2 postscript figures, epsf included
Evolutions of centered Brill waves with a pseudospectral method
Creators: name: Hilditch, David
name: Weyhausen, Andreas
name: Bruegmann, Bernd
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The pseudospectral code bamps is used to evolve axisymmetric gravitational waves. We consider a one-parameter family of Brill wave initial data, taking the seed function and strength parameter of Holz et. al. A careful comparison is made to earlier work. Our results are mostly in agreement with the literature, but we do find that some amplitudes reported elsewhere as subcritical evolve to form apparent horizons. Related to this point we find that by altering the slicing condition, the position of the peak of the Kretschmann scalar in these supercritical data can be controlled so that it appears away from the symmetry axis before the method fails, demonstrating that such behavior is at least partially a coordinate effect. We are able to tune the strength parameter to an interval of range $1-A_\star/A\simeq10^{-6}$ around the onset of apparent horizon formation. In this regime we find that large spikes appear in the Kretschmann scalar on the symmetry axis but away from the origin. From the supercritical side disjoint apparent horizons form around these spikes. On the subcritical side, down to this range, evidence of power-law scaling of the Kretschmann scalar is not conclusive, but the data can be fitted as a power-law with periodic wiggle.
description: 11 pages, 5 figures
Forced magnetic reconnection
Creators: name: Vekstein, G
Publisher: name: arXiv
Year: 2017
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: This is a tutorial-style selective review explaining basic concepts of forced magnetic reconnection. It is based on a celebrated model of forced reconnection suggested by J. B. Taylor. The standard magnetohydrodynamic (MHD) theory of this process has been pioneered by Hahm & Kulsrud (Phys. Fluids 28, 2412, 1985). Here we also discuss several more recent developments related to this problem. These include energetics of forced reconnection, its Hall-mediated regime, and nonlinear effects with the associated onset of the secondary tearing (plasmoid) instability.
OBTIB1.1.8 - སྐར་ཅུང། Skar Cung pillar (རྡོ་རིང་)
Creators: name: Richardson, Hugh
Publisher: name: Zenodo
Year: 2019

description: སྐར་ཅུང། Skar Cung, photograph by Hugh Richardson of his orderly copying the record. Tibet Album (Oxford). University of Oxford no. 2001.59.17.60.1
Supplementary Material for: Burden of Oral Mucositis: A Systematic Review and Implications for Future Research
Creators: name: Berger, K.
name: Schopohl, D.
name: Bollig, A.
name: Strobach, D.
name: Rieger, C.
name: Rublee, D.
name: Ostermann, H.
Publisher: name: Karger Publishers
Year: 2018
Subjects: Medicine

description: Background: Surprisingly little is known about the burden of oral mucositis (OM). We provide a systematic review of studies on the burden of OM (incidence, economic impact, health-related quality of life (HRQoL)). Methods: Systematic literature searches were made in BIOSIS, EMBASE, and MEDLINE. Inclusion criteria were studies on OM in hematology/oncology patients of ≥ 18 years, journal articles, English language, and published between 2000 and 2016; OM treatment studies were excluded. Quality assessment was performed using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach. Results: We screened 4,996 hits, and identified 68 studies of which 13 were without transparency on OM grading. The evidence level of 65 studies was rated ‘low’ or ‘very low’ in 58.5%, ‘moderate’ in 20% and ‘high’ in 21.5%. Mean value of incidence (7 studies) was 83.5% for all grades of OM with hematopoietic stem cell transplantation. OM incidence for all grades in head and neck cancer patients was 59.4–100%. Considering the economic impact, 16 studies showed highly variable numbers. HRQoL was measured in 16 studies using 13 different instruments. Statistically significant changes in HRQoL scores were demonstrated. Conclusion: OM is common, burdensome, costly and imposes major reductions in HRQoL. However, from a quality standpoint, the level of current evidence in OM is disappointing. The field needs continued attention to address methodological challenges.
Lambda's, V's and optimal cloning with stimulated emission
Creators: name: Kempe, Julia
name: Simon, Christoph
name: Weihs, Gregor
Publisher: name: arXiv
Year: 2000
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that optimal universal cloning of the polarization state of photons can be achieved via stimulated emission in three-level systems, both of the Lambda and the V type. We establish the equivalence of our systems with coupled harmonic oscillators, which permits us to analyze the structure of the cloning transformations realized. These transformations are shown to be equivalent to the optimal cloning transformations for qubits discovered by Buzek and Hillery, and Gisin and Massar. The down-conversion cloner discovered previously by some of the authors is obtained as a limiting case. We demonstrate an interesting equivalence between systems of Lambda atoms and systems of pairwise entangled V atoms. Finally we discuss the physical differences between our photon cloners and the qubit cloners considered previously and prove that the bounds on the fidelity of the clones derived for qubits also apply in our situation.
description: 10 pages
How low cost monitoring network would be useful for real time air pollution observations, predictions and health impact studies? A project on particulate matter pollution in urban Coimbatore, India
Creators: name: A, Nishadh K
name: Mohanraj R
name: A, Azeez P
Publisher: name: Zenodo
Year: 2013

description: There is a growing realization that low cost monitoring network would be an important enabler for high spatial resolution air pollution observations and related applications. EPA's recent draft report on “road map for next generation air monitoring” specifically emphasizes such requirements(1). Field trails also, show that low cost sensors with advanced calibration techniques would be an important asset for real time air observation (2). The experiences shows that, it involves the huge challenges in terms of tuning sensing technology, data management, networks sustenance and the collected information's better usage (3). The ongoing case study on particulate matter pollution in urban Coimbatore, a fast growing urban conglomerate in the Tamil Nadu, India is intended to address this question of how low cost monitoring network would be useful for real time air pollution observations, predictions and health impact studies. We here propose an open hardware development route with sensor web enablement for standardization, community involvement and engagement tool for community sensing, application derivation, and sustenance of the network. By following the open hardware development route, the study intends to develop a low cost sensor that would act as an important enabler for high spatial resolution sensing (since low cost would mean more sensors) and further development in public domain. Using the sensor web enablement, the project foresees better management of sensors and its network with more intuitive information models and services capabilities of a typical sensor network. By involving common public in possible ways for developing this network, the project is expected to establish a community sensor platform for air pollution problems and thus ensures the sustenance of network helpful for further research. Reference: United States Environmental Protection Agency (2013). DRAFT road map for next generation air monitoring. https://sites.google.com/site/airsensors2013/background/ASAP%20FINAL%20draft%20Roadmap_2013_03_08.docx?attredirects=0. Accessed on 25th March 2013. D Hasenfratz, O Saukh, and L Thiele. On-the-flycalibration of low-cost gas sensors. In Springer EWSN, 2012. K Aberer, S Sathe, D Chakraborty, A Martinoli, G Barrenetxea, B Faltings and L Thiele (2010). OpenSense: Open Community Driven Sensing of Environment. IWGS ’10, San Jose, CA, USA.
description: Poster presentation in International workshop on Changing Chemistry in Changing Climate: Monsoon. Indian Institute of Tropical Meteorology, Pune, 1-3rd May 2013.
The Crumbling Ivory Tower: How Academia Abandoned Knowledge for Status
Creators: name: Oliver, James
Publisher: name: Zenodo
Year: 2025
Subjects: subject: Higher education
subject: Academia/history
subject: Academia
subject: Academia/trends
subject: Academia/organization & administration

description: Academia claims to sell knowledge, but knowledge is now free. If knowledge is free, universities cannot justify their existence by providing information alone. Therefore, they must sell something else: status.

 

Universities no longer hold a monopoly on learning. The internet, AI, and open-access research have made high-quality education widely available at little or no cost. Yet, academia retains its power by maintaining a credential monopoly, reinforcing exclusivity, and controlling access to research funding and professional validation.

 

This paper examines how academia transitioned from knowledge gatekeeper to status gatekeeper. It explores the historical role of universities, their resistance to disruptive change, and the structural incentives that prioritize prestige over accessibility. The conclusion is clear: higher education must evolve into an open, decentralized model or face obsolescence.
The Crumbling Ivory Tower: Academia's Fall from Knowledge Citadel to Status Marketplace
Creators: name: Oliver, James
Publisher: name: Zenodo
Year: 2025
Subjects: subject: Higher education
subject: Academia/history
subject: Academia
subject: Academia/trends
subject: Academia/organization & administration

description: Universities, once citadels of scarce knowledge, now sell status credentials.

This paper argues academia clings to relevance by gatekeeping status through degrees—a model rendered obsolete by the printing press, internet, and AI. Historical resistance to disruptive ideas (germ theory, plate tectonics) mirrors modern reluctance to adopt open-access education and skill-based certification. Soaring student debt and peer-reviewed orthodoxy reveal a system prioritizing self-preservation over progress. 

To survive, academia must decentralize, leveraging AI-driven learning and validating competence via output, not diplomas. Without reform, universities risk obsolescence in an era where knowledge transcends ivory towers.
One-loop finiteness of the four-dimensional Donaldson-Nair-Schiff non-linear sigma-model
Creators: name: Ketov, Sergei V.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The most general four-dimensional non-linear sigma-model, having the second-order derivatives only and interacting with a background metric and an antisymmetric tensor field, is constructed. Despite its apparent non-renormalizability, just imposing the one-loop UV-finiteness conditions determines the unique model, which may be finite to all orders of the quantum perturbation theory. This model is known as the four-dimensional Donaldson-Nair-Schiff theory, which is a four-dimensional analogue of the standard two-dimensional Wess-Zumino-Novikov-Witten model, and whose unique finiteness properties and an infinite-dimensional current algebra have long been suspected.
description: 11 pages, LaTeX, macros included; revised version
Investigating Head Movements Induced by ‘Riloid’ Patterns in Migraine and Control Groups using a Virtual Reality Display: Supplementary Material
Creators: name: O'hare, Louise
name: Sharp, Alex
name: Dickinson, Patrick
name: Richardson, Graham
name: Shearer, John
Publisher: name: Brill Online
Year: 2018
Subjects: subject: 170299 Cognitive Science not elsewhere classified
subject: FOS: Psychology
subject: 170112 Sensory Processes, Perception and Performance

description: Certain striped patterns can induce illusory motion, such as those used in op-art. The visual system and the vestibular system work together closely, and so it is possible that illusory motion from a visual stimulus can result in uncertainty in the vestibular system. This increased uncertainty may be measureable in terms of the magnitude of head movements. Head movements were measured using a head-mounted visual display. Results showed that stimuli associated with illusory motion also seem to induce greater head movements when compared to similar stimuli. Individuals with migraine are more susceptible to visual discomfort, and this includes illusory motion from striped stimuli. However, there was no evidence of increased effect of illusory motion on those with migraine compared to those without, suggesting that while motion illusions may affect discomfort judgements, this is not limited to only those with migraine.
Lettre du président de l'Hirondelle Beaucairoise aux membres d'une sociétés de farandoles non identifiée : Félicitations pour les danses effectuées par une société de farandoles
Creators: name: Beaucairoise, Hirondelle
name: Lancelot, Francine
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020

description: Source: http://www.calames.abes.fr/pub/ms/FileId-3413
Distributed Imaging for Liquid Scintillation Detectors
Creators: name: Dalmasson, Jacopo
name: Gratta, Giorgio
name: Jamil, Ako
name: Kravitz, Scott
name: Malek, Milad
name: Wells, Kevin
name: Bentley, Julie
name: Steven, Samuel
name: Su, Jiani
Publisher: name: arXiv
Year: 2017
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We discuss a novel paradigm in the optical readout of scintillation radiation detectors. In one common configuration, such detectors are homogeneous and the scintillation light is collected and recorded by external photodetectors. It is usually assumed that imaging in such a photon-starved and large-emittance regime is not possible. Here we show that the appropriate optics, matched with highly segmented photodetector coverage and dedicated reconstruction software, can be used to produce images of the radiation-induced events. In particular, such a 'distributed imaging' system can discriminate between events produced as a single cluster and those resulting from more delocalized energy depositions. This is crucial in discriminating many common backgrounds at MeV energies. With the use of simulation, we demonstrate the performance of a detector augmented with a practical, if preliminary, set of optics. Finally, we remark that this new technique lends itself to be adapted to different detector sizes and briefly discuss the implications for a number of common applications in science and technology.
description: 9 pages, 7 figures
Investigating Head Movements Induced by ‘Riloid’ Patterns in Migraine and Control Groups using a Virtual Reality Display: Supplementary material
Creators: name: O'hare, Louise
name: Sharp, Alex
name: Dickinson, Patrick
name: Richardson, Graham
name: Shearer, John
Publisher: name: Brill Online
Year: 2018
Subjects: subject: 170299 Cognitive Science not elsewhere classified
subject: FOS: Psychology
subject: 170112 Sensory Processes, Perception and Performance

description: Certain striped patterns can induce illusory motion, such as those used in op-art. The visual system and the vestibular system work together closely, and so it is possible that illusory motion from a visual stimulus can result in uncertainty in the vestibular system. This increased uncertainty may be measureable in terms of the magnitude of head movements. Head movements were measured using a head-mounted visual display. Results showed that stimuli associated with illusory motion also seem to induce greater head movements when compared to similar stimuli. Individuals with migraine are more susceptible to visual discomfort, and this includes illusory motion from striped stimuli. However, there was no evidence of increased effect of illusory motion on those with migraine compared to those without, suggesting that while motion illusions may affect discomfort judgements, this is not limited to only those with migraine.