cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Cooling of neutron stars with color superconducting quark cores
Creators: name: Blaschke, D.
name: Voskresensky, D. N.
name: Grigorian, H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We show that within a recently developed nonlocal, chiral quark model the critical densities for a phase transition to color superconducting quark matter under neutron star conditions can be low enough that these phases occur in compact star configurations with masses below 1.4 M_sun. We study the cooling of these objects in isolation for different values of the gravitational mass and thus different composition and structure of the interior. Our equation of state allows for a 2SC phase with a large quark gap Delta ~ 100 MeV for u and d quarks of two colors, a normal quark matter phase and their coexistence in a mixed phase within the hybrid star interior. We argue that, if the phases with unpaired quarks were allowed, the corresponding hybrid stars would cool too fast to describe the neutron star cooling data existing by today. We incorporate other attractive channels permitting a weak pairing of the residual quarks which remained unpaired in the 2SC phase and demonstrate that the model does not contradict the cooling data if the weak pairing gaps are of the order of 0.1 MeV.
description: 10 pages, 5 figures, v2 has corrected text in Sect. 4
Low-Level Equilibrium and Fractional Poverty Traps
Creators: name: Turvey, C.
name: Fu, H.
name: Turvey, C.
name: Fu, H.
Publisher: name: Unknown
Year: 2018
Subjects: Agricultural and Food Policy
Food Security and Poverty

description: For more than 200 years development and agricultural economists have sought to understand the dynamic relationships between population growth, land utilization, and agricultural productivity. Originating with Malthus, numerous scholars have pushed representations of low and high-level equilibrium traps. More recently the literature has explored asset dynamics and fractal poverty traps. In this paper we advance these models by introducing risk into a dynamic growth model using the stochastic calculus and Ito’s Lemma. This approach does two important things. First it moves the discussion away from the idea of a stable short run equilibrium, to one in which the long-run economic attractor is an unknowable point in probability space. On this latter point we are able to show, via Monte Carlo simulation, that population growth is fractional and persistent with Hurst coefficient of around 7.0, while other measures such as output per capita are dynamically fractional with Hurst coefficients in the neighborhood of 0.3 to 0.4. This leads us to believe that poverty traps ought not be measured in a small time scale, but rather a longer time scale reflecting the frequency, duration, and intensity of below-subsistence excursion patterns. We make our case by simulating the Chines agricultural economy between about 1400 and 1900.
Additional file 2 of The extracellular thioredoxin Etrx3 is required for macrophage infection in Rhodococcus equi
Creators: name: Mourenza, Álvaro
name: Collado, Cristina
name: Bravo-Santano, Natalia
name: Gil, José A.
name: Mateos, Luís M.
name: Letek, Michal
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2. Unrooted evolutionary distance tree based on amino-acid identity of the putative extracellular thioredoxins from different pathogens. The tree was constructed by maximum likelihood method using eight Etrx’s. In addition, the E. coli Trx1 and R. equi Trx conserved cytosolic thioredoxins were included as outgroup. Mt: Mycobacterium tuberculosis; Re Rhodococcus equi; Sp: Streptococcus pneumoniae. The GenBank access numbers are in brackets. Scale represents amino acid changes.
Entropy production and Vlasov equation for self-gravitating systems
Creators: name: Farias, Calvin Alexandre Fracassi
name: Pakter, Renato
name: Levin, Yan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The evolution of a self-gravitating system to a non-equilibrium steady state occurs through a process of violent relaxation. In the thermodynamic limit the dynamics of a many body system should be governed by the Vlasov equation. Recently, however, a question was raised regarding the validity of Vlasov equation during the process of violent relaxation. In this paper we will explore the entropy production during the relaxation process using N-body molecular dynamics simulations. We will show that the entropy production time grows as $N^α$, with $α> 0$ and in the limit $N \rightarrow \infty$, entropy will remain constant, consistent with the Vlasov equation. Furthermore, we will show that the mean field dynamics constructed on the basis of the Vlasov equation is in excellent agreement with the full molecular dynamics simulations, justifying the applicability of Vlasov equation during the violent relaxation phase of evolution.
Rethinking Defeasible Reasoning: A Scalable Approach
Creators: name: Maher, Michael J.
name: Tachmazidis, Ilias
name: Antoniou, Grigoris
name: Wade, Stephen
name: Cheng, Long
Publisher: name: arXiv
Year: 2020
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: Recent technological advances have led to unprecedented amounts of generated data that originate from the Web, sensor networks and social media. Analytics in terms of defeasible reasoning - for example for decision making - could provide richer knowledge of the underlying domain. Traditionally, defeasible reasoning has focused on complex knowledge structures over small to medium amounts of data, but recent research efforts have attempted to parallelize the reasoning process over theories with large numbers of facts. Such work has shown that traditional defeasible logics come with overheads that limit scalability. In this work, we design a new logic for defeasible reasoning, thus ensuring scalability by design. We establish several properties of the logic, including its relation to existing defeasible logics. Our experimental results indicate that our approach is indeed scalable and defeasible reasoning can be applied to billions of facts.
description: Under consideration in Theory and Practice of Logic Programming (TPLP)
Hamiltonian Hopf bifurcations in the discrete nonlinear Schrödinger trimer: oscillatory instabilities, quasiperiodic solutions and a 'new' type of self-trapping transition
Creators: name: Johansson, Magnus
Publisher: name: arXiv
Year: 2003
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Condensed Matter (cond-mat)
subject: Chaotic Dynamics (nlin.CD)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Oscillatory instabilities in Hamiltonian anharmonic lattices are known to appear through Hamiltonian Hopf bifurcations of certain time-periodic solutions of multibreather type. Here, we analyze the basic mechanisms for this scenario by considering the simplest possible model system of this kind where they appear: the three-site discrete nonlinear Schrödinger model with periodic boundary conditions. The stationary solution having equal amplitude and opposite phases on two sites and zero amplitude on the third is known to be unstable for an interval of intermediate amplitudes. We numerically analyze the nature of the two bifurcations leading to this instability and find them to be of two different types. Close to the lower-amplitude threshold stable two-frequency quasiperiodic solutions exist surrounding the unstable stationary solution, and the dynamics remains trapped around the latter so that in particular the amplitude of the originally unexcited site remains small. By contrast, close to the higher-amplitude threshold all two-frequency quasiperiodic solutions are detached from the unstable stationary solution, and the resulting dynamics is of 'population-inversion' type involving also the originally unexcited site.
description: 25 pages, 11 figures, to be published in J. Phys. A: Math. Gen. Revised and shortened version with few clarifying remarks added
Invasive alien plants along Mthatha river and their effects on the distribution of invertebrate taxa in Luchaba Nature Reserve, Eastern Cape, South Africa
Creators: name: Sebata Philip Mafereka
Publisher: name: Zenodo
Year: 2010
Subjects: invasive alien plants
reserve
Mthatha
invertebrates
Luchaba
Honours

description: The riparian zone of Mthatha River was surveyed with two aims. The first aim was to record invasive alien plants along the riparian zone of the Mthatha River. Nine sites were visited and 27 species were recorded. The most abundant weed recorded was Solanum mauritianum followed by Acacia mearnsii and Lantana camara (L.). Out of 27 species, 22 species are known as well-established major invaders and fifteen species belong to CARA category 1. These results revealed that the river has been invaded by the most noxious weeds and these need immediate eradication. The second aim was to identify invertebrate taxa within alien and indigenous vegetation in a protected area, with the objective of comparing the abundance of invertebrates at four a priori-selected sites (i.e. mixed alien, eucalyptus and indigenous acacia and grassland). Three-hundred and Forty-two (342) invertebrate individuals belonging to 11 orders were recorded. Results showed that some invertebrate taxa preferred indigenous vegetation sites whilst others preferred mixed alien sites. However, the least number of individuals and taxa were recorded at the Eucalyptus site. Thus, suggesting that invasive alien plants can seriously affects the composition and distribution of invertebrate assemblages. Conservation recommendations were made from findings of this work to relevant stake holders with regards to the management and eradication of these plants within and outside protected areas.
description: The dataset was developed in partial fulfillment of the award of a BSc Honours Degree in Botany from Walter Sisulu University
Asyndetus albifacies Parent 1929
Creators: name: Dawah, Hassan A.
name: Ahmad, Syed Kamran
name: Abdullah, Mohammed A.
name: Grichanov, Igor Ya.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Dolichopodidae
Asyndetus
Asyndetus albifacies

description: Asyndetus albifacies Parent, 1929
 Distribution
This species was previously recorded from Saudi Arabia by Grichanov (2013); El-Hawagry et al. (2016, 2017). It was described from Hala’ib Triangle (Egypt – Sudan border) and further recorded from Israel (Grichanov 2013).
description: Published as part of Dawah, Hassan A., Ahmad, Syed Kamran, Abdullah, Mohammed A. & Grichanov, Igor Ya., 2020, The family Dolichopodidae (Diptera) of the Arabian Peninsula: identification key, an updated list of species and new records from Saudi Arabia, pp. 1425-1454 in Journal of Natural History 54 (21 - 22) on page 1437, DOI: 10.1080/00222933.2020.1800118, http://zenodo.org/record/5030446
Monopole operators in three-dimensional N=4 SYM and mirror symmetry
Creators: name: Borokhov, Vadim
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study non-abelian monopole operators in the infrared limit of three-dimensional SU(N_c) and N=4 SU(2) gauge theories. Using large N_f expansion and operator-state isomorphism of the resulting superconformal field theories, we construct monopole operators which are (anti-)chiral primaries and compute their charges under the global symmetries. Predictions of three-dimensional mirror symmetry for the quantum numbers of these monopole operators are verified.
description: 23 pages, LaTex; v2: section 3.4 modified, section 3.5 extended, references added
Additional file 1 of Slower, shorter, sadder: a qualitative study exploring how dog walks change when the canine participant develops osteoarthritis
Creators: name: Belshaw, Zoe
name: Dean, Rachel
name: Asher, Lucy
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 1: Supplementary Data 1. Summary of the interview participants’ coverage of the sampling frame; tabulated data of participant numbers in each of the sampling frame categories. Supplementary Data 2. Purposive sampling frame used to recruit dog owners to the study; complete sampling frame including response options that was constructed to ensure a broad range of participants were included in the interviews. Supplementary Data 3. Interview guide used during semi-structured interviews; complete semi-structured interview schedule including prompt questions.
Additional file 1 of The extracellular thioredoxin Etrx3 is required for macrophage infection in Rhodococcus equi
Creators: name: Mourenza, Álvaro
name: Collado, Cristina
name: Bravo-Santano, Natalia
name: Gil, José A.
name: Mateos, Luís M.
name: Letek, Michal
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. Sequence alignments of the Etrx proteins of different Gram-positive pathogens. Re, Rhodococcus equi; Mtb, Mycobacterium tuberculosis; Sp, Streptococcus pneumoniae. Highly conserved regions are highlighted in red. The thioredoxin-active site WCxxC of each Etrx is highlighted with a black rectangle. The alignments were made with T-COFFEE.
Large magnetoelectric effects mediated by electric-field-driven nanoscale phase transformations in sputtered (nanoparticulate) and electrochemically dealloyed (nanoporous) Fe–Cu films
Creators: name: Robbennolt, Shauna
Publisher: name: Zenodo
Year: 2018

description: Large magnetoelectric effects are observed in as-sputtered (nanoparticulate-like) and electrochemically dealloyed (nanoporous) 200 nm thick Fe–Cu films. Application of positive voltages decreases both the saturation magnetization (MS) and coercivity (HC) of the films, while negative voltages cause the reverse effect (increase of MS and HC). The relative variations are as high as 20% for MS and beyond 100% for HC, both for the as-sputtered and dealloyed states. These changes in magnetic properties are caused by controlled and reversible electric-field-driven nanoscale phase transformations between face-centered cubic ( fcc) and body-centered cubic (bcc) structures. These phase transitions are in turn due to selective redox reactions induced by the applied voltage, which can be regarded as a “magnetoionic effect.” The controlled tuning of HC and MS with the moderate values of applied voltage, together with the sustainable composition of the investigated alloys (not containing noble metals, as opposed to many previous works on magnetoelectric effects in thin films), pave the way towards the implementation of magnetic and spintronic devices with enhanced energy efficiency and functionalities.
Sustainability & Engineering : Wesbrook Mall Redesign, Phase 4
Creators: name: Adams, Cyrus
name: Atkinson, Kris
name: Chapman, Jeff
name: Kamal, Firas Mohammed
name: Simao, Sean
name: Thompson, Mateo
Publisher: name: The University of British Columbia
Year: 2022

description: The fourth phase of upgrades to Wesbrook Mall were designed to integrate both current user demands as well as the changing demands throughout the corridor’s life cycle. Although corridor use is expected to grow substantially from 2021 to 2050, modelling indicates that single-occupancy vehicle use will continue to decline and be offset with an increase in pedestrian, cyclist, and transit use. The design will move forward with the construction of a pedestrian underpass, a dedicated bus lane, a protected bi-directional bike lane, minor storm-water improvements through the implementation of green infrastructure, and the reclamation of the existing roadway structure. Detailed engineering drawings of the proposed upgrades are included in Appendix A. These drawings demonstrate our design rationale and are supported by technical analysis throughout the report. As the corridor is proposed to stay operational whenever possible, consideration of construction feasibility and sequence has been considered as a design objective and is detailed in the Construction Schedule section of the report. The project's tendering is proposed to be scheduled for the beginning of May 2022. The Class A (+/- 5 to 10%) cost estimate for the work is $7,734,959.23 which includes a 10% contingency. The contingency has been applied for the variability in geotechnical conditions and utility relocation as described in the Risk Management section of the report. With consideration to the detailed design outlined in the report, our team would like to make the following recommendations to the client: A survey and mapping of underground utilities, a detailed geotechnical assessment at the location of the underpass, hiring a pilot communications representative, and adopting strict requirements regarding timelines of submittals and milestones. We would be happy to provide some or all these services to the client at an additional cost in accordance with our standard hourly rates and fees. Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
Sea quark effects in B_K from N_f=2 clover-improved Wilson fermions
Creators: name: UKQCD Collaboration
name: Flynn, J. M.
name: Mescia, F.
name: Tariq, A. S. B.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We report calculations of the parameter B_K appearing in the Delta S=2 neutral kaon mixing matrix element, whose uncertainty limits the power of unitarity triangle constraints for testing the standard model or looking for new physics. We use two flavours of dynamical clover-improved Wilson lattice fermions and look for dependence on the dynamical quark mass at fixed lattice spacing. We see some evidence for dynamical quark effects and in particular B_K decreases as the sea quark masses are reduced towards the up/down quark mass.
description: 17 pages, 4 figures, uses JHEP3.cls, added comments and references
Corvus peregrinus C. L. Brehm
Creators: name: Lecroy, Mary
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Passeriformes
Corvidae
Corvus
Corvus peregrinus

description: Corvus peregrinus C.L. Brehm
Corvus peregrinus C.L. Brehm, 1831: 164 (Er gehört unserm Vaterlands nicht an, sondern verirrt sich nur im Winter zuweilen und auf unregelmässigen Zügen in dasselbe.)
Now Corvus corax corax Linnaeus, 1758. See Hartert and Kleinschmidt, 1901: 40; Hartert, 1918a: 7; Blake and Vaurie, 1962: 279–280; Dickinson, 2003: 514–515; and dos Anjos, 2009: 638–639.
LECTOTYPE: AMNH 674870, adult male, collected at Renthendorf, 50.48N, 11.58E (USBGN, 1959), Germany, on 10 January 1818. From the Brehm Collection via the Rothschild Collection.
COMMENTS: No type was designated in the original description. Hartert and Kleinschmidt (1901: 40) listed the specimen labeled peregrinus by Brehm and collected on 10 January 1818 as the type, thereby designating it the lectotype. The annotation ‘‘4a’’ on the reverse of Brehm’s label corresponds to the number given it by Hartert and Kleinschmidt. One other specimen listed by Hartert and Kleinschmidt (no. 4c) and labeled peregrinus by Brehm came to AMNH: AMNH 674867, female juvenile, Rodathal (= Vallis Rodana as on label), 28 April 1817, but peregrinus was described only as a bird of migratory passage. The specimen labeled ‘‘4b’’ by Hartert and Kleinschmidt may have been exchanged by AMNH to ZFMK as AMNH 674881.
description: Published as part of Lecroy, Mary, 2014, Type Specimens Of Birds In The American Museum Of Natural History Part 12. Passeriformes: Ploceidae, Sturnidae, Buphagidae, Oriolidae, Dicruridae, Callaeidae, Grallinidae, Corcoracidae, Artamidae, Cracticidae, Ptilonorhynchidae, Cnemophilidae, Paradisaeidae, And Corvidae, pp. 1-165 in Bulletin of the American Museum of Natural History 2014 (393) on pages 134-135, DOI: 10.1206/885.1, http://zenodo.org/record/4629954
Induced superhorizon tensor perturbations from anisotropic non-Gaussianity
Creators: name: Ota, Atsuhisa
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study cosmological tensor perturbations induced by second-order scalar perturbations in the presence of anisotropic non-Gaussianity. This class of induced tensor modes arises on superhorizon scales through the intrinsic quadrupole coupling between long modes and short modes. Scalar perturbations on all scales from the inflationary Hubble radius to the Silk damping scale at recombination contribute to the induced tensor powerspectrum at the cosmic microwave background (CMB) scale. In addition, the induced tensor spectrum becomes almost scale-invariant. The former property suggests that measurements of the CMB offer a test of tiny scale physics. However, the latter implies the secondary effect may contaminate the primordial tensor spectrum, which tells us the energy scale of inflation. We derive the induced tensor modes originated from two concrete examples of anisotropic non-Gaussianity; statistically anisotropic scalar non-Gaussianity and scalar-scalar-tensor non-Gaussianity, and discuss observational consequences of extremely short scale physics. Also, we comment on various possibilities of enhancing the induced spectrum with nonstandard early Universe physics.
description: 17 pages, 5 figures
Quantum stochastic equation for test particle interacting with dilute Bose gas
Creators: name: Pechen, A. N.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We use the stochastic limit method to study long time quantum dynamics of a test particle interacting with a dilute Bose gas. The case of arbitrary form-factors and an arbitrary, not necessarily equilibrium, quasifree low density state of the Bose gas is considered. Starting from microscopic dynamics we derive in the low density limit a quantum white noise equation for the evolution operator. This equation is equivalent to a quantum stochastic equation driven by a quantum Poisson process with intensity $S-1$, where $S$ is the one-particle $S$ matrix. The novelty of our approach is that the equations are derived directly in terms of correlators, without use of a Fock-antiFock (or Gel'fand-Naimark-Segal) representation. Advantages of our approach are the simplicity of derivation of the limiting equation and that the algebra of the master fields and the Ito table do not depend on the initial state of the Bose gas. The notion of a causal state is introduced. We construct master fields (white noise and number operators) describing the dynamics in the low density limit and prove the convergence of chronological (causal) correlators of the field operators to correlators of the master fields in the causal state.
description: 21 pages, LaTeX, published version (few improvements)
Asyndetus albifrons Parent 1929
Creators: name: Dawah, Hassan A.
name: Ahmad, Syed Kamran
name: Abdullah, Mohammed A.
name: Grichanov, Igor Ya.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Dolichopodidae
Asyndetus
Asyndetus albifrons

description: Asyndetus albifrons Parent, 1929
(Figure 3A)
 Specimens examined
1♂, Jazan, AbuAresh, Al-Mahdag Village, 4.iii.2013, sweeping, H.A. Dawah (CERS).
 Distribution
This is the first record from Saudi Arabia. The species was described from Egypt (Bir Abrag, South Eastern desert) and further recorded from Iraq (Grichanov 2017a).
description: Published as part of Dawah, Hassan A., Ahmad, Syed Kamran, Abdullah, Mohammed A. & Grichanov, Igor Ya., 2020, The family Dolichopodidae (Diptera) of the Arabian Peninsula: identification key, an updated list of species and new records from Saudi Arabia, pp. 1425-1454 in Journal of Natural History 54 (21 - 22) on page 1437, DOI: 10.1080/00222933.2020.1800118, http://zenodo.org/record/5030446
In the search for the low-complexity sequences in prokaryotic and eukaryotic genomes: how to derive a coherent picture from global and local entropy measures
Creators: name: Acquisti, Claudia
name: Allegrini, Paolo
name: Bogani, Patrizia
name: Buiatti, Marcello
name: Catanese, Elena
name: Fronzoni, Leone
name: Grigolini, Paolo
name: Mersi, Giuseppe
name: Palatella, Luigi
Publisher: name: arXiv
Year: 2003
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Genomics (q-bio.GN)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We investigate on a possible way to connect the presence of Low-Complexity Sequences (LCS) in DNA genomes and the nonstationary properties of base correlations. Under the hypothesis that these variations signal a change in the DNA function, we use a new technique, called Non-Stationarity Entropic Index (NSEI) method, and we prove that this technique is an efficient way to detect functional changes with respect to a random baseline. The remarkable aspect is that NSEI does not imply any training data or fitting parameter, the only arbitrarity being the choice of a marker in the sequence. We make this choice on the basis of biological information about LCS distributions in genomes. We show that there exists a correlation between changing the amount in LCS and the ratio of long- to short-range correlation.
Corvus corax subsp. canariensis Hartert and Kleinschmidt
Creators: name: Lecroy, Mary
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Passeriformes
Corvidae
Corvus
Corvus corax
Corvus corax canariensis hartert and kleinschmidt

description: Corvus corax canariensis Hartert and Kleinschmidt
Corvus corax canariensis Hartert and Kleinschmidt, 1901: 45 (Palma).
Now Corvus corax canariensis Hartert and Kleinschmidt, 1901. See Hartert, 1901a: 326; Hartert, 1919: 125–126; Vaurie, 1954b: 22–23; Cramp et al., 1994: 206–223; Dickinson, 2003: 514–515; Baker and Omland, 2006: 174–178; and dos Anjos, 2009: 638–639.
HOLOTYPE: AMNH 674976, adult male, collected on La Palma Island, 28.40N, 17.50W (Times Atlas), Canary Islands, undated, by Scott Wilson. From the Rothschild Collection.
COMMENTS: Hartert and Kleinschmidt made it clear in the original description that they had only the holotype and that Hartert had seen an additional four specimens in Liverpool. They did not mention that the holotype had been skinned from spirits, although this is written on the Rothschild label. Also, strangely, no mention is made in the description or by Hartert (1903d: 6, 1919: 125–126) of the bizarre appearance of this type (see fig. 1). Almost all the feather vanes have been eaten away—by insects or chemicals?—until hardly any part of the feather is left except the shaft. Wing and tail measurements given in the original description could not have included this specimen if it was already in this condition. There is also no remark in the AMNH catalog to indicate its condition, nor did Meinertzhagen (1926: 102) or Vaurie (1954b: 22–23, 1959: 176) mention any peculiarity. There is also no indication of insect infestation among corvid types or other corvid specimens in AMNH, except minor damage in a few specimens that had originally been part of the Brehm Collection. The condition of this specimen remains a mystery.
The four paratypes are in LIVCM, all from the H.B. Tristram Collection, collected between 1888 and 1890, one each from La Palma, Gomera, Hierro, and Tenerife, none of which have any obvious peculiarities (T. Parker, personal commun.).
Baker and Omland (2006) found that Canary Island ravens have mtDNA distinct from that of their ‘‘Holarctic clade.’’ They had no specimens from North Africa, but included Canary Island birds in the subspecies tingitanus, without mentioning the Canary Islands subspecies, canariensis, which is still recognized by many authorities (e.g., Dickinson, 2003: 515) and more recently dos Anjos (2009: 638–639).
description: Published as part of Lecroy, Mary, 2014, Type Specimens Of Birds In The American Museum Of Natural History Part 12. Passeriformes: Ploceidae, Sturnidae, Buphagidae, Oriolidae, Dicruridae, Callaeidae, Grallinidae, Corcoracidae, Artamidae, Cracticidae, Ptilonorhynchidae, Cnemophilidae, Paradisaeidae, And Corvidae, pp. 1-165 in Bulletin of the American Museum of Natural History 2014 (393) on page 135, DOI: 10.1206/885.1, http://zenodo.org/record/4629954
The Next Generation Virgo Cluster Survey. XVII. A Search for Planetary Nebulae in Virgo Cluster Globular Clusters
Creators: name: Sun, Weijia
name: Peng, Eric W.
name: Ko, Youkyung
name: Côté, Patrick
name: Ferrarese, Laura
name: Lee, Myung Gyoon
name: Liu, Chengze
name: Longobardi, Alessia
name: Chilingarian, Igor V.
name: Spengler, Chelsea
name: Zabludoff, Ann I.
name: Zhang, Hong-Xin
name: Cuillandre, Jean-Charles
name: Gwyn, Stephen D. J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The occurrence of planetary nebulae (PNe) in globular clusters (GCs) provides an excellent chance to study low-mass stellar evolution in a special (low-metallicity, high stellar density) environment. We report a systematic spectroscopic survey for the [O{\sc iii}] 5007 emission line of PNe in 1469 Virgo GCs and 121 Virgo ultra-compact dwarfs (UCDs), mainly hosted in the giant elliptical galaxies M87, M49, M86, and M84. We detected zero PNe in our UCD sample and discovered one PN ($M_{5007} = -4.1$ mag) associated with an M87 GC. We used the [O{\sc iii}] detection limit for each GC to estimate the luminosity-specific frequency of PNe, $α$, and measured $α$ in the Virgo cluster GCs to be $α\sim 3.9_{-0.7}^{+5.2}\times 10^{-8}\mathrm{PN}/L_\odot$. $α$ in Virgo GCs is among the lowest values reported in any environment, due in part to the large sample size, and is 5--6 times lower than that for the Galactic GCs. We suggest that $α$ decreases towards brighter and more massive clusters, sharing a similar trend as the binary fraction, and the discrepancy between the Virgo and Galactic GCs can be explained by the observational bias in extragalactic surveys toward brighter GCs. This low but non-zero efficiency in forming PNe may highlight the important role played by binary interactions in forming PNe in GCs. We argue that a future survey of less massive Virgo GCs will be able to determine whether PN production in Virgo GCs is governed by internal process (mass, density, binary fraction), or is largely regulated by external environment.
description: 19 pages, 8 figures. Accepted for publication in ApJ
Energy-based models for atomic-resolution protein conformations
Creators: name: Du, Yilun
name: Meier, Joshua
name: Ma, Jerry
name: Fergus, Rob
name: Rives, Alexander
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Quantitative Methods (q-bio.QM)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: We propose an energy-based model (EBM) of protein conformations that operates at atomic scale. The model is trained solely on crystallized protein data. By contrast, existing approaches for scoring conformations use energy functions that incorporate knowledge of physical principles and features that are the complex product of several decades of research and tuning. To evaluate the model, we benchmark on the rotamer recovery task, the problem of predicting the conformation of a side chain from its context within a protein structure, which has been used to evaluate energy functions for protein design. The model achieves performance close to that of the Rosetta energy function, a state-of-the-art method widely used in protein structure prediction and design. An investigation of the model's outputs and hidden representations finds that it captures physicochemical properties relevant to protein energy.
description: Accepted to ICLR 2020
Chrysotus suavis Loew 1857
Creators: name: Dawah, Hassan A.
name: Ahmad, Syed Kamran
name: Abdullah, Mohammed A.
name: Grichanov, Igor Ya.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Dolichopodidae
Chrysotus
Chrysotus suavis

description: Chrysotus suavis Loew, 1857
(Figure 3B)
 Specimens examined
1♀, Asir, Abha, Hay Al-Nusub, 15–30.v.2014, Malaise trap, H.A. Dawah (NMWC; CERS).
 Distribution
 This genus is recorded from Saudi Arabia for the first time. Chrysotus suavis was described from Germany and Hungary and is further recorded from many countries of the Palaearctic Region including Algeria, Egypt, Iraq, Iran, Israel, Morocco and Turkey; it is excluded from the Afrotropical Region (DR Congo) by Grichanov (2018).
description: Published as part of Dawah, Hassan A., Ahmad, Syed Kamran, Abdullah, Mohammed A. & Grichanov, Igor Ya., 2020, The family Dolichopodidae (Diptera) of the Arabian Peninsula: identification key, an updated list of species and new records from Saudi Arabia, pp. 1425-1454 in Journal of Natural History 54 (21 - 22) on page 1438, DOI: 10.1080/00222933.2020.1800118, http://zenodo.org/record/5030446
Settlement of Perna perna larvae in successful and unsuccessful rehabilitation sites in Coffee Bay
Creators: name: Ngalwa, Musa
Publisher: name: Zenodo
Year: 2010
Subjects: Perna perna
Larvae
Settlement
Rehabilitation
Honours

description: Settlement is a major determinant of intertidal organisms. Arrival and attachment on suitable substrata are essential requirements for species survival. Populations of the brown mussel Perna perna in the former Transkei have been reported to be depleted through over exploitation by subsistence harvesters. This is a problem because recovery after disturbance is very slow. There is a Mussel Rehabilitation Project in Coffee Bay which attaches mussels onto the rocks for rehabilitation and rehabilitation is considered as successful in some sites and unsuccessful in some sites. The study examined the effect of settlement of Brown mussel Perna perna larvae in successful and unsuccessful sites for rehabilitation. Brown mussel larvae settlement was monitored at 6 sites in Coffee Bay situated between Hole in the Wall and Umtata River mouth in the Eastern Cape, S.A. Each site had 6 artificial larvae collectors about 30cm apart. Larvae collectors were replaced fortnightly from May to September during spring low tide. Larvae abundance showed varying picks among sites, with high picks observed in successful sites for rehabilitation. There was a positive correlation between larvae settlement and rehabilitation success of brown mussels in Coffee Bay. The amount of larvae settlement was higher in successful sites than in unsuccessful sites. According to the MRP staff Nqutheni was the best site for rehabilitation and that was based on the rehabilitation success. However, in this study Ocean was the site with higher number of larvae settling. These results indicate that delivery of larvae in these sites is different, with some sites receiving more larvae than others. In conclusion, the effect of aspect on settlement highlights the importance in successful site selection, suggesting that mussel larvae settlement has an effect on mussel rehabilitation in Coffee Bay.
description: In partial fulfillment of a BSc Honours Degree in Zoology
Corvus brachyurus A. E. Brehm
Creators: name: Lecroy, Mary
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Passeriformes
Corvidae
Corvus
Corvus brachyurus

description: Corvus brachyurus A.E. Brehm
Corvus brachyurus A.E. Brehm, 1854: 75 (Aegypten).
Now Corvus rhipidurus Hartert, 1918. See Hartert and Kleinschmidt, 1901: 41; Hartert, 1918a: 7; 1918b: 361; 1918e: 21; Blake and Vaurie, 1962: 281; Dickinson, 2003: 515; and dos Anjos, 2009: 639–640.
HOLOTYPE: AMNH 675393, adult male, collected at Luxor, 25.41N, 32.24E (Times Atlas), Egypt, on 12 October 1851, by Alfred E. Brehm. From the Brehm Collection via the Rothschild Collection.
COMMENTS: In the original description, A.E. Brehm noted that he collected a single specimen. It bears in addition to Rothschild Collection and type labels, C.L. Brehm’s original label where it is called ‘‘ Corax brachyuros, species distincta,’’ in C.L. Brehm’s hand. Hartert (1918a: 7) incorrectly cited the date of collection of the type as ‘‘1857,’’ and considered the same specimen to be the type of Corvus brachyrhynchos C.L. Brehm, 1855, which name he thought was a slip of the pen for brachyurus. He considered both of these names synonyms of Corvus affinis Rüppell, 1835.
Hartert (1918b: 361) then considered C. brachyrhynchos C.L. Brehm, 1855, a valid name and the one to be used because C. affinis was found to be preoccupied by C. affinis Shaw, 1809 (= Monasa nigra), and C. brachyurus A.E. Brehm was preoccupied by C. brachyurus Linnaeus, 1766. However, it does seem that C. brachyrhynchos C.L. Brehm, 1855, was indeed a slip of the pen and not intended as a new name, because Brehm (1855a: 414) credited the name to Alfred Brehm.
Hartert (1918e: 21) then found that C. brachyrhynchus C.L. Brehm, 1855 (so spelled by Hartert) was preoccupied by C. brachyrhynchus C.L. Brehm, 1822, and at that point decided that a replacement name was needed! He provided Corvus rhipidurus, and this has been used by subsequent authors.
description: Published as part of Lecroy, Mary, 2014, Type Specimens Of Birds In The American Museum Of Natural History Part 12. Passeriformes: Ploceidae, Sturnidae, Buphagidae, Oriolidae, Dicruridae, Callaeidae, Grallinidae, Corcoracidae, Artamidae, Cracticidae, Ptilonorhynchidae, Cnemophilidae, Paradisaeidae, And Corvidae, pp. 1-165 in Bulletin of the American Museum of Natural History 2014 (393) on pages 135-136, DOI: 10.1206/885.1, http://zenodo.org/record/4629954
Challenges in Moving the LEP Higgs Statistics to the LHC
Creators: name: Cranmer, K. S.
name: Mellado, B.
name: Quayle, W.
name: Wu, Sau Lan
Publisher: name: arXiv
Year: 2003
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: We examine computational, conceptual, and philosophical issues in moving the statistical techniques used in the LEP Higgs working group to the LHC.
description: Talk from PhyStat2003, Stanford, Ca, USA, September 2003, 4 pages, LaTeX, 3 eps figures. PSN MODT004
High spectro-temporal purity single-photons from silicon micro-racetrack resonators using a dual-pulse configuration
Creators: name: Burridge, Ben
name: Faruque, Imad I.
name: Rarity, John
name: Barreto, Jorge
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Single-photons with high spectro-temporal purity are an essential resource for quantum photonic technologies. The highest reported purity up until now from a conventional silicon photonic device is 92% without any spectral filtering. We have experimentally generated and observed single-photons with 98.0+-0.3 % spectro-temporal purity using a conventional micro racetrack resonator and an engineered dual pump pulse.
O Impacto do OSI na Permuta Internacional de Registos UNIMARC e CCF
Creators: name: Bobmeyer, Christine
Publisher: name: Cadernos BAD
Year: 1992

description: Tradução da cornunicação original ern inglês apresentada ao UNIMARC/CCF Workshop, organizado pela CEE e UNESCO, Florence, June 1991.
description: Cadernos BAD, N.º 1 (1992)
Failure properties of fiber bundle models
Creators: name: Pradhan, Srutarshi
name: Chakrabarti, Bikas K.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the failure properties of fiber bundles when continuous rupture goes on due to the application of external load on the bundles. We take the two extreme models: equal load sharing model (democratic fiber bundles) and local load sharing model. The strength of the fibers are assumed to be distributed randomly within a finite interval. The democratic fiber bundles show a solvable phase transition at a critical stress (load per fiber). The dynamic critical behavior is obtained analytically near the critical point and the critical exponents are found to be universal. This model also shows elastic-plastic like nonlinear deformation behavior when the fiber strength distribution has a lower cut-off. We solve analytically the fatigue-failure in a democratic bundle, and the behavior qualitatively agrees with the experimental observations. The strength of the local load sharing bundles is obtained numerically and compared with the existing results. Finally we map the failure phenomena of fiber bundles in terms of magnetic model (Ising model) which may resolve the ambiguity of studying the failure properties of fiber bundles in higher dimensions.
description: 18 pages and 10 figs, to be published as DMTAS conf. proc. (held in Chennai India) in IJMPB
Cryptophleps buttikeri Grichanov 2015
Creators: name: Dawah, Hassan A.
name: Ahmad, Syed Kamran
name: Abdullah, Mohammed A.
name: Grichanov, Igor Ya.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Dolichopodidae
Cryptophleps
Cryptophleps buttikeri

description: Cryptophleps buttikeri Grichanov, 2015
(Figure 3C)
 Specimens examined
1♀, Jazan, Abu Aresh, Al-Mahdag Village, 20.v.2013, sweeping, H.A. Dawah (CERS).
 Distribution
The species was described from Saudi Arabia (Bahrah, a town in Makka province, in western Saudi Arabia located between Mekka and Jeddah) and this is the second locality of that species in Saudi Arabia and the habitat and altitude are the same as where the species was first found and described.
description: Published as part of Dawah, Hassan A., Ahmad, Syed Kamran, Abdullah, Mohammed A. & Grichanov, Igor Ya., 2020, The family Dolichopodidae (Diptera) of the Arabian Peninsula: identification key, an updated list of species and new records from Saudi Arabia, pp. 1425-1454 in Journal of Natural History 54 (21 - 22) on page 1439, DOI: 10.1080/00222933.2020.1800118, http://zenodo.org/record/5030446
Reproductive biology of Turbo sarmaticus at Dwesa-Cwebe Nature Reserve
Creators: name: Inam Yekwayo
Publisher: name: Zenodo
Year: 2010
Subjects: Turbo sarmaticus
reproductive cycle
spawning period
sex ratio
sexual maturity
Honours

description: The reproductive biology of giant periwinkle (Turbo sarmaticus) was investigated using gravimetric method. Samples were randomly collected from Dwesa-Cwebe Nature Reserve during spring low tide from June 1996 to July 1997 and preserved in 10% formalin seawater. A 2-way Analysis of Covariance (ANCOVA) test was used to test the effect of gender and month on the Gonado-Somatic Index (GSI) using the operculum diameter as covariate. The results indicated that the male GSI was grater than the female GSI and this was due to the selective predation. The results showed synchronized spawning period of both males and females. Results from Chi-squared tests showed a distortion from a 1:1 sex ratio with significantly more males than females. Males appeared to attain size at sexual maturity earlier than females. Spawning of T. sarmaticus occurred in warmer months and temperature was found to be the important factor triggering spawning. Information obtained from this study may possibly add value on the effective management of this species. Key words: Turbo sarmaticus, reproductive cycle, spawning period, sex ratio, sexual maturity.
description: In partial fulfilment of the award of a BSc Honours Degree in Zoology
Implementation of an Index Optimize Technology for Highly Specialized Terms based on the Phonetic Algorithm Metaphone
Creators: name: Buriachok, V.
name: Hadzhyiev, M.
name: Sokolov, V.
name: Skladannyi, P.
name: Kuzmenko, L.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences
subject: F.2.2; H.3.3

description: When compiling databases, for example to meet the needs of healthcare establishments, there is quite a common problem with the introduction and further processing of names and last names of doctors and patients that are highly specialized both in terms of pronunciation and writing. This is because names and last names of people cannot be unique, their notation is not subject to any rules of phonetics, while their length in different languages may not match. With the advent of the Internet, this situation has become generally critical and can lead to that multiple copies of e-mails are sent to one address. It is possible to solve the specified problem by using phonetic algorithms for comparing words Daitch-Mokotoff, Soundex, NYSIIS, Polyphone, and Metaphone, as well as the Levenshtein and Jaro algorithms, Q-gram-based algorithms, which make it possible to find distances between words. The most widespread among them are the Soundex and Metaphone algorithms, which are designed to index the words based on their sound, taking into consideration the rules of pronunciation. By applying the Metaphone algorithm, an attempt has been made to optimize the phonetic search processes for tasks of fuzzy coincidence, for example, at data deduplication in various databases and registries, in order to reduce the number of errors of incorrect input of last names. An analysis of the most common last names reveals that some of them are of the Ukrainian or Russian origin. At the same time, the rules following which the names are pronounced and written, for example in Ukrainian, differ radically from basic algorithms for English and differ quite significantly for the Russian language. That is why a phonetic algorithm should take into consideration first of all the peculiarities in the formation of Ukrainian last names, which is of special relevance now.
Diaphorus hoffmannseggi Meigen 1830
Creators: name: Dawah, Hassan A.
name: Ahmad, Syed Kamran
name: Abdullah, Mohammed A.
name: Grichanov, Igor Ya.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Dolichopodidae
Diaphorus
Diaphorus hoffmannseggi

description: Diaphorus hoffmannseggi Meigen, 1830
(Figure 3D)
 Specimens examined
2♂, Asir, Karatha, Al-Ethrebany Fruit Farm, 6–27.v.2014, Malaise trap, H.A. Dawah (NMWC; CERS); 1♂, same locality but 7–28.viii.2013 (CERS).
 Distribution
This is the first record from Saudi Arabia. The species is widespread in Europe, being also recorded from Israel and Turkey (Grichanov 2017b).
description: Published as part of Dawah, Hassan A., Ahmad, Syed Kamran, Abdullah, Mohammed A. & Grichanov, Igor Ya., 2020, The family Dolichopodidae (Diptera) of the Arabian Peninsula: identification key, an updated list of species and new records from Saudi Arabia, pp. 1425-1454 in Journal of Natural History 54 (21 - 22) on page 1439, DOI: 10.1080/00222933.2020.1800118, http://zenodo.org/record/5030446