cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Hoiho tracking:21 June 2019 – 20 July 2019
Creators: name: Mattern, Thomas
name: Young, Melanie
Publisher: name: figshare
Year: 2020
Subjects: subject: 60201 Behavioural Ecology
subject: FOS: Biological sciences
subject: Marine Biology
subject: 60205 Marine and Estuarine Ecology (incl. Marine Ichthyology)

description: Despite repeated efforts to recapture the remaining three hoiho fitted with GPS dive loggers this has not been achieved to date. Due to the unpredictability of recapture, we decided against deploying archival tags until the penguins re-engage in breeding activities in August (pair-bonding). In the meantime, we are trialling alternative methods of tracking to improve data outcome in the coming winter. Besides having ordered to trail units of data loggers that transmit data through the cell phone network, we deployed satellite tags on a penguin from Penguin Bay in the Catlins. The detail of the tracking data was initially not satisfactory so that the device was recovered, and the bird fitted with another transmitter set-up with a different transmission programme. The satellite data recorded so far suggest that the bird is utilizing the same ocean region for foraging as during the chick rearing period of the past breeding season.
Neutrino-dominated accretion flows: second nucleosynthesis factory in core-collapse supernovae and regulation of iron markets in galaxies
Creators: name: Liu, Tong
name: Qi, Yan-Qing
name: Cai, Zhen-Yi
name: Sun, Mou-Yuan
name: Qu, Hui-Min
name: Song, Cui-Ying
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Cosmic metals are widely believed to be produced by supernovae (SNe) and compact object mergers. Here, we discuss the nucleosynthesis of neutrino-dominated accretion flows (NDAFs) with outflows in the core-collapse SNe (CCSNe), and show that the outflows from NDAFs can have a significant contribution to the $^{56}$Ni abundance in the faint explosions if the masses of the progenitor stars are within about $25-50$ $M_\odot$. Less massive progenitor stars can produce more $^{56}$Ni than their more massive counterparts in the NDAF outflow nucleosynthesis channel. Therefore, we find that the total (i.e., CCSNe and NDAF outflows) $^{56}$Ni mass per CCSN depends only weakly upon the mass of progenitor stars. In the metallicity evolution, the ratio of $^{56}$Fe (decayed by $^{56}$Ni) mass to the initial total gas mass can increase by $\sim$ 1.95 times if the upper limits of the nucleosynthesis yields from NDAF outflows and CCSNe are considered. Our results might have significant implication for chemical evolution of the the solar neighborhood, galaxies, and active galactic nuclei.
description: 10 pages, 5 figures, accepted for publication in ApJ
The human cationic host defense peptide LL-37 modulates neutrophil apoptosis and chemokine responses
Creators: name: Li, Yue Xin
Publisher: name: University of British Columbia
Year: 2011

description: LL-37 is a human cationic peptide expressed primarily by neutrophils and epithelial cells. It is a 37 amino acid peptide that belongs to the cathelicidin family of the cationic host defense peptides. Accumulating evidence has demonstrated that LL-37 has multiple immunomodulatory properties. The modulatory effects of LL-37 on neutrophils were investigated here, and LL-37 was shown to be a potent inhibitor of spontaneous apoptosis in human neutrophils, signalling through P2X₇ receptors and G-protein-coupled receptors other than the formyl peptide receptor-like- 1 molecule. Inhibition of neutrophil apoptosis involved modulation of Mcl-1 expression, inhibition of BID and procaspase-3 cleavage, and the activation of phosphatidylinositol-3 kinase and protein kinase C but not the extracellular signal-regulated kinase 1/2 mitogen-activated protein kinase (ERK1/2) pathway. In addition, LL-37 modified neutrophil cytokine/chemokine responses to pro-inflammatory stimuli in a stimulus-specific manner. Specifically, LL-37 abrogated LPS-induced TNF-a cytokine production while enhancing IL-1β elicited release of TNF-a as well as a number of chemokines including IL-8, Gro-a, CCL-22 and Mip-la . The increased release of chemokines induced synergistically by LL-37 and IL-1β resulted from de novo protein synthesis and was found to be associated with the signalling through the ERK1/2 and p38 MAP kinases and nuclear factor κΒ pathways. These novel immunomodulatory properties of LL-37 may contribute to peptide-mediated enhancement of innate host defenses against acute infection and are of considerable significance in the development of such peptides and their synthetic analogs as potential therapeutics for use against multiple antibiotic-resistant infectious diseases.
Hamilton-Jacobi quantization of singular Lagrangians with linear velocities
Creators: name: Muslih, Sami I.
name: El-Zalan, Hosam A.
name: Rabei, Eqab M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper, constrained Hamiltonian systems with linear velocities are investigated by using the Hamilton-Jacobi method. We shall consider the integrablity conditions on the equations of motion and the action function as well in order to obtain the path integral quantization of singular Lagrangians with linear velocities.
description: latex
Distribution and timing of Holocene and late Pleistocene glacier fluctuations in western Mongolia
Creators: name: Lehmkuhl, Frank
name: Klinge, Michael
name: Rother, Henrik
name: Hülle, Daniela
Publisher: name: FID GEO
Year: 2016

description: Despite being a key location for paleoglaciological research in north-central Asia, with the largest number of modern and Pleistocene glaciers, and in the transition zone between the humid Russian Altai and dry Gobi Altai, little is known about the precise extent and timing of Holocene and late Pleistocene glaciations in western Mongolia. Here we present detailed information on the distribution of modern and late Holocene glaciers, and new results addressing the geomorphological differentiation and numerical dating (by optically stimulated luminescence, OSL) of Pleistocene glacial sequences in these areas. For the Mongolian Altai, geochronological results suggest large ice advances correlative to marine isotope stages (MIS) 4 and 2. This is in contrast to results from the Khangai mountains, central Mongolia, showing that significant ice advances additionally occurred during MIS3. During the Pleistocene, glacial equilibrium-line altitudes (ELAs) were �500 to >1000m lower in the more humid portion of the Russian and western Mongolian Altai, compared to 300–600m in the drier ranges of the eastern Mongolian Altai. Pleistocene ELAs in the Khangai mountains were depressed by 700–1000 m, suggesting more humid conditions at times of major glaciation than in the eastern Mongolian Altai. This paleo-ELA pattern reveals that the precipitation gradient from the drier to the more humid regions was more pronounced during glacial times than at present.
Hoiho tracking: 21 July 2019 – 1 September 2019
Creators: name: Mattern, Thomas
name: Young, Melanie
Publisher: name: figshare
Year: 2020
Subjects: subject: 60201 Behavioural Ecology
subject: FOS: Biological sciences
subject: 60205 Marine and Estuarine Ecology (incl. Marine Ichthyology)
subject: Marine Biology

description: Low numbers of penguins in the Catlins breeding areas continued to complicate the tracking work. Of the three birds still presumed to carry data loggers, one could be recaptured at Penguin Bay 5 weeks after device deployment; the device was lost. Due to the unpredictability, methodology was changed form data logging devices to a combination of satellite transmitters and time-depth recorders. Two birds from Penguin Bay – one female and one male – have been fitted with transmitters and are currently being actively tracked. The female performed five multiple-day long foraging trips during which she principally foraged 20-25 km from the shore close to the continental shelf-edge due south of Penguin Bay. The bird was recaptured on 31 August 2019; satellite data suggests that the bird did not leave the colony since 25 August. The male conducts one- to two-day trips and generally stays within 10 km of the coast. The deployment of two GPS dive loggers that transmit data through the cell phone network so far could not be deployed due to a lack of birds.
Search for $t\bar{t}$ resonances in fully hadronic final states in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
Creators: name: ATLAS Collaboration
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: This paper presents a search for new heavy particles decaying into a pair of top quarks using 139 fb$^{-1}$ of proton--proton collision data recorded at a centre-of-mass energy of $\sqrt{s}=13$ TeV with the ATLAS detector at the Large Hadron Collider. The search is performed using events consistent with pair production of high-transverse-momentum top quarks and their subsequent decays into the fully hadronic final states. The analysis is optimized for resonances decaying into a $t\bar{t}$ pair with mass above 1.4 TeV, exploiting a dedicated multivariate technique with jet substructure to identify hadronically decaying top quarks using large-radius jets and evaluating the background expectation from data. No significant deviation from the background prediction is observed. Limits are set on the production cross-section times branching fraction for the new $Z'$ boson in a topcolor-assisted-technicolor model. The $Z'$ boson masses below 3.9 and 4.7 TeV are excluded at 95% confidence level for the decay widths of 1% and 3%, respectively.
description: 40 pages in total, author list starting page 24, 4 figures, 2 tables, submitted to JHEP. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2018-48/
A fossil species of the enigmatic early polypod fern genus Cystodium (Cystodiaceae) in Cretaceous amber from Myanmar.
Creators: name: Regalado, Ledis
name: Schmidt, Alexander R.
name: Appelhans, Marc S.
name: Ilsemann, Bork
name: Schneider, Harald
name: Krings, Michael
name: Heinrichs, Jochen
Publisher: name: FID GEO
Year: 2017

description: The monospecific fern genus Cystodium (Cystodiaceae; Polypodiales) occurs exclusively in the tropical forests of the Malay Archipelago, the Admiralty Islands, the Louisiade Archipelago, and the Solomon Islands. Divergence time estimates suggest that the genus originated in the Mesozoic; however, fossil evidence to validate this suggestion has been lacking. Amber from Myanmar (Burmese amber) is an important source of new information on the diversity of vascular cryptogams in the Cretaceous. This paper describes the fossil taxon Cystodium sorbifolioides nov. sp. based on a fragment of a fertile leaf preserved in Burmese amber that represents the first fossil evidence of the family Cystodiaceae. Cystodium sorbifolioides is used to obtain a minimum age estimate for the Cystodiaceae and the closely related, monogeneric Lonchitidaceae and Lindsaeaceae. The fossil strengthens the hypothesis that the forest ecosystems of Malesia and Melanesia represent refugia for many tropical plant lineages that originated in the Cretaceous.
Life Lessons_ Timeless Truths That Shape Who We Become
Creators: name: Gabhe, Nitin
Publisher: name: Zenodo
Year: 2025

description: Life is a ride with joy, sorrow, success, failure, love, heartbreak, and many more experiences that mold us into the people we become. As we travel along its curvy paths, we gain a treasure trove of knowledge — not from books, but from experience. These lessons of life are learned the hard way, through self-improvement, hardship, and time. In this article, we will find out some of the most powerful life lessons which can change the way we look at the world, other people, and ourselves.
Simplified approach to the application of the geometric collective model
Creators: name: Caprio, M. A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The predictions of the geometric collective model (GCM) for different sets of Hamiltonian parameter values are related by analytic scaling relations. For the quartic truncated form of the GCM -- which describes harmonic oscillator, rotor, deformed gamma-soft, and intermediate transitional structures -- these relations are applied to reduce the effective number of model parameters from four to two. Analytic estimates of the dependence of the model predictions upon these parameters are derived. Numerical predictions over the entire parameter space are compactly summarized in two-dimensional contour plots. The results considerably simplify the application of the GCM, allowing the parameters relevant to a given nucleus to be deduced essentially by inspection. A precomputed mesh of calculations covering this parameter space and an associated computer code for extracting observable values are made available through the Electronic Physics Auxiliary Publication Service. For illustration, the nucleus 102Pd is considered.
description: RevTeX 4, 15 pages, to be published in Phys. Rev. C
Digital zero noise extrapolation for quantum error mitigation
Creators: name: Giurgica-Tiron, Tudor
name: Hindy, Yousef
name: LaRose, Ryan
name: Mari, Andrea
name: Zeng, William J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Zero-noise extrapolation (ZNE) is an increasingly popular technique for mitigating errors in noisy quantum computations without using additional quantum resources. We review the fundamentals of ZNE and propose several improvements to noise scaling and extrapolation, the two key components in the technique. We introduce unitary folding and parameterized noise scaling. These are digital noise scaling frameworks, i.e. one can apply them using only gate-level access common to most quantum instruction sets. We also study different extrapolation methods, including a new adaptive protocol that uses a statistical inference framework. Benchmarks of our techniques show error reductions of 18X to 24X over non-mitigated circuits and demonstrate ZNE effectiveness at larger qubit numbers than have been tested previously. In addition to presenting new results, this work is a self-contained introduction to the practical use of ZNE by quantum programmers.
description: 11 pages, 7 figures
Ecological and biogeochemical change in an early Paleogene peat-forming environment: Linking biomarkers and palynology
Creators: name: Inglis, Gordon N.
name: Collinson, Margaret E.
name: Riegel, Walter
name: Wilde, Volker
name: Robson, Brittany E.
name: Lenz, Olaf K.
name: Pancost, Richard D.
Publisher: name: FID GEO
Year: 2015

description: Sphagnum moss is the dominant plant type inmodern boreal and (sub)arctic ombrotrophic bogs and is of particular interest due to its sensitivity to climate and its important role in wetland biogeochemistry. Here we reconstruct the occurrence of Sphagnum moss – and associated biogeochemical change – within a thermally immature, early Paleogene (~55 Ma) lignite from Schöningen, NW Germany using a high-resolution, multi-proxy approach. Changes in the abundance of Sphagnum-type spores and the C23/C31 n-alkane ratio indicate the expansion of Sphagnum moss within the top of the lignite seam. This Sphagnum moss expansion is associated with the development of waterlogged conditions, analogous to what has been observed within modern ombrotrophic bogs. The similarity between biomarkers and palynology also indicates that the C23/C31 n-alkane ratio may be a reliable chemotaxonomic indicator for Sphagnum during the early Paleogene. The δ13C value of bacterial hopanes and mid-chain n-alkanes indicates that a rise in water table is not associated with a substantial increase in aerobic methanotrophy. The absence of very low δ13C values within the top of the seam could reflect either less methanogenesis or less efficient methane oxidation under waterlogged sulphate-rich conditions.
Conserved charges in general relativity
Creators: name: Aoki, Sinya
name: Onogi, Tetsuya
name: Yokoyama, Shuichi
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present a precise definition of a conserved quantity from an arbitrary covariantly conserved current available in a general curved spacetime with Killing vectors. This definition enables us to define energy and momentum for matter by the volume integral. As a result we can compute charges of Schwarzschild and BTZ black holes by the volume integration of a delta function singularity. Employing the definition we also compute the total energy of a static compact star. It contains both the gravitational mass known as the Misner-Sharp mass in the Oppenheimer-Volkoff equation and the gravitational binding energy. We show that the gravitational binding energy has the negative contribution at maximum by 68% of the gravitational mass in the case of a constant density. We finally comment on a definition of generators associated with a vector field on a general curved manifold.
description: 16 pages (single column), v3 (major revision): more discussion on a compact star included, a comparison with previous results given in the appendix, more references added
Experimental and theoretical study of electronic and hyperfine properties of hydrogenated anatase (TiO$_2$): defects interplay and thermal stability
Creators: name: Zyabkin, D. V.
name: Gunnlaugsson, H. P.
name: Goncalves, J. N.
name: Bharuth-Ram, K.
name: Qi, B.
name: Unzueta, I.
name: Naidoo, D.
name: Mantovan, R.
name: Masenda, H.
name: Olafsson, S.
name: Peters, G.
name: Schell, J.
name: Vetter, U.
name: Dimitrova, A.
name: Krischok, S.
name: Schaaf, P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this study we report on the results from emission $^{57}$Fe M${ö}$ssbauer Spectroscopy experiments, using dilute $^{57}$Mn implantation into pristine (TiO$_2$) and hydrogenated anatase held at temperatures between 300-700 K. Results of the electronic structure and local environment are complemented with ab-initio calculations. Upon implantation both Fe$^{2+}$ and Fe$^{3+}$ are observed in pristine anatase, where the latter demonstrates the spin-lattice relaxation. The spectra obtained for hydrogenated anatase show no Fe$^{3+}$ contribution, suggesting that hydrogen acts as a donor. Due to the low threshold, hydrogen diffuses out of the lattice. Thus showing a dynamic behavior on the time scale of the $^{57}$Fe 14.4 keV state. The surrounding oxygen vacancies favor the high-spin Fe$^{2+}$ state. The sample treated at room temperature shows two distinct processes of hydrogen motion. The motion commences with the interstitial hydrogen, followed by switching to the covalently bound state. Hydrogen out-diffusion is hindered by bulk defects, which could cause both processes to overlap. Supplementary UV-Vis and electrical conductivity measurements show an improved electrical conductivity and higher optical absorption after the hydrogenation. X-ray photoelectron spectroscopy at room temperature reveals that the sample hydrogenated at 573 K shows presence of both Ti$^{3+}$ and Ti$^{2+}$ states. This could imply that a significant amount of oxygen vacancies and -OH bonds are present in the samples. Theory suggests that in the anatase sample implanted with Mn(Fe), probes were located near equatorial vacancies as next-nearest-neighbours, whilst a metastable hydrogen configuration is responsible for the annealing behavior.
title: Insights From Diverse Environments: Investigating the Fate and Transport of Semivolatile Organic Contaminants in Alpine, Arctic, And Arid Regions
Creators: name: Perala-Dewey, Jeffrey
Publisher: name: Utah State University
Year: 2024

description: This dissertation investigates the fate and transport of pollutants through four field-based studies in a diverse array of environments. These pollutants travel through the atmosphere and end up in places far from their original sources. In this work I explore how chemical properties of the pollutants and the environmental processes that are present change the way the pollutants travel through the environment. In the first study, pollutants from car engines were quantified in the vegetation along transects in three alpine valleys. Using these measurements, I investigated how the chemical properties of the pollutants impacted their interplay with wind systems in the valleys. Next, the atmospheric transport of pollutants from an urban area into a protected alpine wilderness was investigated. In this study, I show that the temperature changes in alpine areas impact the deposition of these pollutants into the soil. In an even more remote area, I investigated the behavior of pesticides in an Arctic lake. By measuring these pesticides in air and water, I was able to demonstrate that springtime melting releases a pulse of pesticides. Lastly, in a very different lake system, I measured pollutants in dust that is blowing off the dry lakebed of the Great Salt Lake. These pollutants were found at higher levels in the dust than in the underlying lakebed. Together, these studies demonstrate the ways that pollutant fate in the environment differs depending on their chemical properties and the environmental processes at play.
Hoiho tracking: 21 May 2019 - 20 June 2019
Creators: name: Mattern, Thomas
Publisher: name: figshare
Year: 2020
Subjects: subject: 60201 Behavioural Ecology
subject: FOS: Biological sciences
subject: 60205 Marine and Estuarine Ecology (incl. Marine Ichthyology)
subject: Marine Biology

description: Tracking of hoiho during the winter months remains extremely difficult. Of the seven hoiho fitted with GPS dive loggers between 1 and 10 May 2019 at Nugget Point, Penguin Bay and Te Rere, four birds could be recaptured to date. Three birds have remained elusive. The greatest challenge are the unpredictable landing patterns and long foraging trips of penguins. Particularly Te Rere has proved to be very difficult to work at as hoiho at that site return as late as 1am in the morning. The ca. 200 observer-hours invested by PIs and volunteers in the past four weeks led to only 3 recaptures; on many nights no penguin movements were observed at some of the sites. We propose trialling new GPRS/GSM data loggers that transmit data through mobile phone networks to see if this is a viable option to reduce the issues we are having with traditional data loggers.
Signals of spinodal hadronization: strangeness trapping
Creators: name: Koch, Volker
name: Majumder, Abhijit
name: Randrup, Jorgen
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: If the deconfinement phase transformation of strongly interacting matter is of first-order and the expanding chromodynamic matter created in a high-energy nuclear collision enters the corresponding region of phase coexistence, a spinodal phase separation might occur. The matter would then condense into a number of separate blobs, each having a particular net strangeness that would remain approximately conserved during the further evolution. We investigate the effect that such `strangeness trapping' may have on strangeness-related hadronic observables. The kaon multiplicity fluctuations are significantly enhanced and thus provide a possible tool for probing the nature of the phase transition experimentally.
description: 15 pages, 11 eps figures
title: The Chicago school: A metascientific study
Creators: name: Harvey, Lee Colin
Publisher: name: The Open University
Year: 1985

description: The value of the concept of 'school' in metascience is examined with reference to the 'Chicago School, of sociology during the period from 1900 to 1952. The notion of school is widely used by sociologists in accounting for developments within their discipline. However, the use of schools as a framework for documenting and interpreting the history of sociology tends to obscure the complexity and variety of intellectual development. Five myths about the 'Chicago School' are identified: that its members were social ameliorists; that they were primarily ethnographers; that they exhibited little concern with theory; that they were heavily reliant on a framework provided by the social psychological perspective of George Herbert Mead; and that they were an insular group with little direct involvement in, or long term impact on, the development of sociology in the United States. It is argued that sociological work at the University of Chicago was an integral part of American sociology throughout the period under study and that the 'Chicago School' did not display a distinct set of theoretical and methodological ideas. What was common to the the members of the sociology department of the University of Chicago was in large part also typical of American sociology as a whole. In the light of this empirical study, the potential of the metascientific models proposed by Mullins (1973) and Tiryakian (1979a, 1979b) is examined in detail both in terms of their theoretical underpinnings and their approach to the case study material. 'Doubt is cast on the value of these models and the implications of this for a 'schools' or 'unit approach' to metascience are considered. It is suggested that a schools approach which concentrates on the knowledge transformative processes within a school rather than on identifying schools with a distinct set of ideas might be a more profitable way of developing a theory of the production of sociological knowledge and would be less likely to perpetrate myths.
Hoiho tracking: 21 April 2019 – 20 May 2019
Creators: name: Mattern, Thomas
name: Young, Melanie
Publisher: name: figshare
Year: 2020
Subjects: subject: 60201 Behavioural Ecology
subject: FOS: Biological sciences
subject: Marine Biology
subject: 60205 Marine and Estuarine Ecology (incl. Marine Ichthyology)

description: Following the conclusion of the annual Yellow-eyed penguin moult in late April, tracking work resumed in the first week of May in the Catlins. Between 1 and 10 May 2019, a total of 7 penguins were fitted with GPS dive loggers. Four birds from Nugget Point were fitted with devices, at Penguin Bay one bird was tagged and a further two birds are currently being tracked at Te Rere. At the time of this writing, one bird at the Nugget Point has been recaptured.
Evolution of superclusters and supercluster cocoons in various cosmologies
Creators: name: Einasto, J.
name: Hütsi, G.
name: Suhhonenko, I.
name: Liivamägi, L. J.
name: Einasto, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the evolution of superclusters and supercluster cocoons (basins of attraction), and the influence of cosmological parameters to the evolution. We perform numerical simulations of the evolution of the cosmic web for different cosmological models: the LCDM model with a conventional value of the dark energy (DE) density, the open model OCDM with no DE, the standard SCDM model with no DE, and the Hyper-DE HCDM model with an enhanced DE density value. We find ensembles of superclusters of these models for five evolutionary stages, corresponding to the present epoch z = 0, and to redshifts z = 1, 3, 10, 30. We use diameters of the largest superclusters and the number of superclusters as percolation functions to describe properties of the ensemble of superclusters in the cosmic web. We analyse the size and mass distribution of superclusters in models and in real Sloan Digital Sky Survey (SDSS) based samples. In all models numbers and volumes of supercluster cocoons are independent on cosmological epochs. Supercluster masses increase with time, and geometrical sizes in comoving coordinates decrease with time, for all models. LCDM, OCDM and HCDM models have almost similar percolation parameters. This suggests that the essential parameter, which defines the evolution of superclusters, is the matter density. The DE density influences the growth of the amplitude of density perturbations, and the growth of masses of superclusters, albeit significantly less strongly. The HCDM model has the largest speed of the growth of the amplitude of density fluctuations, and the largest growth of supercluster masses during the evolution. Geometrical diameters and numbers of HCDM superclusters at high threshold densities are larger than for LCDM and OCDM superclusters. SCDM model has about two times more superclusters than other models; SCDM superclusters have smaller diameters and masses.
description: 14 pages, 10 figures (accepted by Astronomy & Astrophysics). arXiv admin note: text overlap with arXiv:1901.09378
Statistical Origin of Pseudo-Hermitian Supersymmetry and Pseudo-Hermitian Fermions
Creators: name: Mostafazadeh, Ali
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We show that the metric operator for a pseudo-supersymmetric Hamiltonian that has at least one negative real eigenvalue is necessarily indefinite. We introduce pseudo-Hermitian fermion (phermion) and abnormal phermion algebras and provide a pair of basic realizations of the algebra of N=2 pseudo-supersymmetric quantum mechanics in which pseudo-supersymmetry is identified with either a boson-phermion or a boson-abnormal-phermion exchange symmetry. We further establish the physical equivalence (non-equivalence) of phermions (abnormal phermions) with ordinary fermions, describe the underlying Lie algebras, and study multi-particle systems of abnormal phermions. The latter provides a certain bosonization of multi-fermion systems.
description: 20 pages, to appear in J.Phys.A
Distributed space-time coding for cooperative networks
Creators: name: Yiu, Simon Tik-Kong
Publisher: name: University of British Columbia
Year: 2011

description: Cooperative networks exploit the broadcast nature of wireless channels to gain spatial diversity. This dissertation develops two distributed space-time coding schemes for frequency-nonselective channels, and extends and optimizes the previously proposed distributed space-time filtering scheme for frequency-selective channels. Unlike many other distributed space-time coding schemes in the literature, the decentralized schemes proposed in this thesis are designed specifically for wireless networks with a large set of N decode-and-forward relay nodes. At any given time, an a priori unknown subset of nodes acts as relays to cooperatively assist the communication between the source and destination node. To facilitate the cooperation, each physically distributed single--antenna node in the network is assigned a signature vector (signature matrix for multiple-antenna nodes) or signature filter vector. We show that the proposed schemes guarantee a certain diversity gain regardless of which relay nodes in the network cooperate. In addition, the decoding complexity of the various schemes is independent of N and the (random) number of active nodes, and receiver designs advocated originally for traditional co-located antenna systems can be applied. The first scheme is called distributed space-time block coding. Depending on the chosen design, it allows for low-complexity coherent, differential, and noncoherent detection. The second scheme is referred to as distributed space time trellis coding. We show that distributed space-time trellis coding inherits the coding gain of space-time trellis codes over space-time block codes even in the cooperative setting. The two aforementioned schemes are designed for frequency-nonselective fading channels. Finally, we optimize and extend distributed space-time filtering, proposed originally by El Gamal and Aktas, to frequency-selective fading channels. For each scheme, the design criteria are derived. Then, using mathematical tools and classical optimization techniques, efficient methods for the design of the set of signature vectors, signature matrices, and signature filter vectors are provided. Furthermore, the achievable diversity gain, as well as the loss entailed by the distributed implementation of each scheme, are characterized and verified via simulations. Finally, we apply noncoherent distributed space-time block coding to a practical wireless sensor network and show that the proposed scheme is a promising solution for cooperative communication in future sensor, ad hoc, and wireless networks.
Autonomous Ticking Clocks from Axiomatic Principles
Creators: name: Woods, Mischa P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: There are many different types of time keeping devices. We use the phrase ticking clock to describe those which -- simply put -- "tick" at approximately regular intervals. Various important results have been derived for ticking clocks, and more are in the pipeline. It is thus important to understand the underlying models on which these results are founded. The aim of this paper is to introduce a new ticking clock model from axiomatic principles that overcomes concerns in the community about the physicality of the assumptions made in previous models. The ticking clock model in [arXiv:1806.00491] achieves high accuracy, yet lacks the autonomy of the less accurate model in [10.1103/PhysRevX.7.031022]. Importantly, the model we introduce here achieves the best of both models: it retains the autonomy of [10.1103/PhysRevX.7.031022] while allowing for the high accuracies of [arXiv:1806.00491]. What is more, [10.1103/PhysRevX.7.031022] is revealed to be a special case of the new ticking clock model.
description: 14 + 14 pages
Improved BBN constraints on Heavy Neutral Leptons
Creators: name: Boyarsky, Alexey
name: Ovchynnikov, Maksym
name: Ruchayskiy, Oleg
name: Syvolap, Vsevolod
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We constrain the lifetime of thermally produced Heavy Neutral Leptons (HNLs) from primordial nucleosynthesis. We show that even a small fraction of mesons present in the primordial plasma leads to the over-production of the primordial helium. This puts an upper bound on the lifetime of HNLs $τ_{N}<0.02$ s for masses $m_{N}>m_π$ (as compared to 0.1 s reported previously). In combination with accelerator searches, this allows us to put a new lower bound on the HNLs masses and defining the "bottom line" for HNL searches at the future Intensity Frontier experiments.
description: Journal version
title: Calcifying extracellular mucus substances (EMS) of Madrepora oculata
title: a first geobiological approach
titleType: AlternativeTitle
Creators: name: Reitner, Joachim
Publisher: name: Springer
Year: 2005

description: Colonial non-zooxanthellate corals from deep-water coral reefs, Lophelia pertusa and Madrepora oculata, produce large amounts of extracellular mucus (EMS). This mucus has various functions, e.g., an antifouling capability protecting the coral skeleton from attacks of endolithic and boring organisms. Both corals show thick epithecal and exothecal skeletal parts with a clear lamellar growth pattern. The formation of the epitheca is unclear. It is supposed that the EMS play a central role during the calcification process of the epithecal skeletal parts. Staining with the fluorochrome tetracycline has shown an enrichment of Ca2+ ions in the mucus. In order to investigate this hypothesis, the protein content of the mucus and the intracrystalline organic matter from newly formed epithecal aragonite of Madrepora oculata was determined via sodium dodecyl sulfate (SDS) gel electrophoresis. Identical band patterns within both substances could be detected, one around 45 kDa molecular weight and a cluster around 30-35 kDa molecular weight. The occurrence of identical protein patterns within the mucus and in the newly formed aragonite confirms the idea that the mucus plays an important role during the organomineralization of the coral epitheca.
Hoiho tracking: 21 February 2019 – 20 March 2019
Creators: name: Mattern, Thomas
name: Young, Melanie
Publisher: name: figshare
Year: 2020
Subjects: subject: 60201 Behavioural Ecology
subject: FOS: Biological sciences
subject: 60205 Marine and Estuarine Ecology (incl. Marine Ichthyology)
subject: Marine Biology

description: Due to unpredictability of behaviour of hoiho from the Catlins, the tracking efforts for the pre-moult period were shifted in the second half of February northwards to the Otago Peninsula and Aramoana. Between 11 February and 17 February 2019, a total of seven adult penguins were fitted with GPS dive loggers. Devices were programmed to record up to 20 days’ worth of data in case recovery of the birds proved as difficult as in the Catlins leading to delays. As birds from the Catlins repeatedly managed to preen off devices, we now secured devices with two cable ties in addition to cloth tape. The cable ties were threaded under the device after it had been fitted using the Tesa-tape method. A cable tie gun that ensured that the cable ties were tightened strongly around device and the underlying feathers and cleanly cut off the part of tie protruding from the head. This set-up proved to be highly effective. Only one device was lost which was due to the penguin’s plumage already being compromised by the onset of moult while still at sea. The device fell off before the bird made landfall. The remaining six devices were recovered successfully and all yielded GPS and dive data sets. Due to the volume of the dive data resulting from prolonged deployment periods (average 34.4 million data points per deployment) not all dive data has been processed at this stage. This means that, unlike in the previous reports, dive profiles are only included for some of the penguins. This will be rectified in next month’s report when all data collected so far will have been fully processed and analysed.
A Covariant Approach for Particle Creation in Non-flat Background
Creators: name: Ziyaee, A. R.
name: Mohsenzadeh, M.
name: Yusofi, E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Krein approach is used to study the particle creation during quasi-de Sitter inflation in different background space-times. In the conventional method for calculating the created particles spectrum, the background space-time is automatically considered flat. Selecting a flat background poses two fundamental problems: First, the method of calculating is not covariant relative to the curved space-time. Second, the number of created particles becomes negative. Krein approach can be considered as a covariant method to calculate two-point functions in curved space-time. So we extend this method for particle creation during early cosmic inflation. As a new proposal, we choose the background vacuum based on the smallest number of created particles in that space-time. The calculations will show that in order to solve the above mentioned problems, the background space-time must be non-flat and the number of particles in the background must be minimum.
description: 10 pages, 4 figures, Statements of introduction, abstract and results were corrected
Internal Motility in Stiffening Actin-Myosin Networks
Creators: name: Uhde, Joerg
name: Keller, Manfred
name: Sackmann, Erich
name: Parmeggiani, Andrea
name: Frey, Erwin
Publisher: name: arXiv
Year: 2003
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Quantitative Biology (q-bio)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We present a study on filamentous actin solutions containing heavy meromyosin subfragments of myosin II motor molecules. We focus on the viscoelastic phase behavior and internal dynamics of such networks during ATP depletion. Upon simultaneously using micro-rheology and fluorescence microscopy as complementary experimental tools, we find a sol-gel transition accompanied by a sudden onset of directed filament motion. We interpret the sol-gel transition in terms of myosin II enzymology, and suggest a "zipping" mechanism to explain the filament motion in the vicinity of the sol-gel transition.
description: 4 pages, 3 figures
City marketing: como vender las ciudades desde la gestión publicitaria
Creators: name: Ortiz, Francisco
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 350612
subject: Social marketing

description: Esta ponencia tiene como objetivo describir la estrategia del City Marketing como una tendencia de vender de la mejor forma a las ciudades desde la gestión eficiente de la publicidad para los gobiernos autónomos descentralizados, al mismo tiempo explicar la evolución publicitaria en base a las llamadas marcas ciudad que son tendencias de hoy en la participación de la comunicación publicitaria y la ciudadanía en procesos de selección de su identidad, una óptica que se origina en la marca cultural del ciudadano y es motivada desde la publicidad y la comunicación originando un debate propositivo desde las marcas ciudadanas hacia la marca ciudad, determinando factores de gran importancia como la investigación, la arquitectura de la marca y el análisis de las matrices de producción de la ciudad a impulsar, tomando en cuenta testimonios desde pasado, presente y futuro y la visión ciudadana que debe adaptarse en la transición urbanística que una ciudad requiere para ser un modelo a seguir.La gestión de la Comunicación publicitaria en el diseño para las ciudades ayuda a formar percepciones en el manejo de los recursos gráficos, slogan, frases estratégicas que están acopladas a los intereses institucionales.La publicidad se está proyectando en las marcas turísticas y en las administraciones municipales, las mismas que se están tomando en cuenta como factor fundamental la promoción de lugares turísticos, complementando a los intereses de las autoridades para poder multiplicar percepciones favorables de la ciudad, este tema valida las acciones de una comunicación publicitaria que ayuda a posicionar lo que se quiere comunicar.
Aerobic methanotrophy within the pelagic redox-zone of the Gotland Deep (central Baltic Sea)
Creators: name: Schmale, O.
name: Blumenberg, M.
name: Kießlich, K.
name: Jakobs, G.
name: Berndmeyer, C.
name: Labrenz, M.
name: Thiel, V.
name: Rehder, G.
Publisher: name: FID GEO
Year: 2012

description: Water column samples taken in summer 2008 from the stratified Gotland Deep (central Baltic Sea) showed a strong gradient in dissolved methane concentrations from high values in the saline deep water (max. 504 nM) to low concentrations in the less dense, brackish surface water (about 4 nM). The steep methane-gradient (between 115 and 135 m water depth) within the redox-zone, which separates the anoxic deep part from the oxygenated surface water (oxygen concentration 0–0.8 mL L − 1 ), implies a methane consumption rate of 0.28 nM d − 1 . The process of micro- bial methane oxidation within this zone was evident by a shift of the stable carbon isotope ratio of methane between the bottom water ( δ 13 C CH 4 =− 82.4 ‰) and the redox- zone ( δ 13 C CH 4 =− 38.7 ‰). Water column samples be- tween 80 and 119 m were studied to identify the microor- ganisms responsible for the methane turnover in that depth interval. Notably, methane monooxygenase gene expression analyses for water depths covering the whole redox-zone demonstrated that accordant methanotrophic activity was probably due to only one phylotype of the aerobic type I methanotrophic bacteria. An imprint of these organisms on the particular organic matter was revealed by distinctive lipid biomarkers showing bacteriohopanepolyols and lipid fatty acids characteristic for aerobic type I methanotrophs (e.g., 35-aminobacteriohopane-30,31,32,33,34-pentol), cor- roborating their role in aerobic methane oxidation in the redox-zone of the central Baltic Sea.
Anchistrocheles Brady & Norman 1889
Creators: name: Sciuto, Francesco
name: Pugliese, Nevio
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Ostracoda
Podocopida
Bairdiidae
Anchistrocheles

description: Genus Anchistrocheles Brady & Norman, 1889
 TYPE SPECIES. — Anchistrocheles fumata Brady, 1890.
description: Published as part of Sciuto, Francesco & Pugliese, Nevio, 2013, Description of two new species of ostracods from the Strait of Messina (central Mediterranean), pp. 35-44 in Zoosystema 35 (1) on page 37, DOI: 10.5252/z2013n1a4, http://zenodo.org/record/4539132
Open topological recursion relations in genus $1$ and integrable systems
Creators: name: Brauer, Oscar
name: Buryak, Alexandr
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: Algebraic Geometry (math.AG)
subject: Symplectic Geometry (math.SG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The paper is devoted to the open topological recursion relations in genus 1, which are partial differential equations that conjecturally control open Gromov-Witten invariants in genus 1. We find an explicit formula for any solution analogous to the Dijkgraaf-Witten formula for a descendent Gromov-Witten potential in genus 1. We then prove that at the approximation up to genus 1 the exponent of an open descendent potential satisfies a system of explicitly constructed linear evolutionary PDEs with one spatial variable.
description: v4: correction of the spelling of the name of one of the authors, 12 pages
A non-PRE double-peaked burst from 4U 1636-536: evidence for burning front propagation
Creators: name: Bhattacharyya, Sudip
name: Strohmayer, Tod E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We analyse Rossi X-ray Timing Explorer (RXTE) Proportional Counter Array (PCA) data of a double-peaked burst from the low mass X-ray binary (LMXB) 4U 1636--536 that shows no evidence for photospheric radius expansion (PRE). We find that the X-ray emitting area on the star increases with time as the burst progresses, even though the photosphere does not expand. We argue that this is a strong indication of thermonuclear flame spreading on the stellar surface during such bursts. We propose a model for such double-peaked bursts, based on thermonuclear flame spreading, that can qualitatively explain their essential features, as well as the rarity of these bursts.
description: 11 pages, 2 figures, refereed version, accepted for publication in ApJ Letters
Phase Transition Strength through Densities of General Distributions of Zeroes
Creators: name: Janke, W.
name: Johnston, D. A.
name: Kenna, R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: A recently developed technique for the determination of the density of partition function zeroes using data coming from finite-size systems is extended to deal with cases where the zeroes are not restricted to a curve in the complex plane and/or come in degenerate sets. The efficacy of the approach is demonstrated by application to a number of models for which these features are manifest and the zeroes are readily calculable.
description: 16 pages, 12 figures