cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Efficient phase-factor evaluation in quantum signal processing
Creators: name: Dong, Yulong
name: Meng, Xiang
name: Whaley, K. Birgitta
name: Lin, Lin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Optimization and Control (math.OC)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Quantum signal processing (QSP) is a powerful quantum algorithm to exactly implement matrix polynomials on quantum computers. Asymptotic analysis of quantum algorithms based on QSP has shown that asymptotically optimal results can in principle be obtained for a range of tasks, such as Hamiltonian simulation and the quantum linear system problem. A further benefit of QSP is that it uses a minimal number of ancilla qubits, which facilitates its implementation on near-to-intermediate term quantum architectures. However, there is so far no classically stable algorithm allowing computation of the phase factors that are needed to build QSP circuits. Existing methods require the usage of variable precision arithmetic and can only be applied to polynomials of relatively low degree. We present here an optimization based method that can accurately compute the phase factors using standard double precision arithmetic operations. We demonstrate the performance of this approach with applications to Hamiltonian simulation, eigenvalue filtering, and the quantum linear system problems. Our numerical results show that the optimization algorithm can find phase factors to accurately approximate polynomials of degree larger than $10,000$ with error below $10^{-12}$.
description: 26 pages, 17 figures
The Relation between Black Hole Mass, Bulge Mass, and Near-Infrared Luminosity
Creators: name: Marconi, Alessandro
name: Hunt, Leslie K.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present new accurate near-infrared (NIR) spheroid (bulge) structural parameters obtained by two-dimensional image analysis for all galaxies with a direct black hole (BH) mass determination. As expected, NIR bulge luminosities Lbul and BH masses are tightly correlated, and if we consider only those galaxies with secure BH mass measurement and accurate Lbul (27 objects), the spread of MBH-Lbul is similar to MBH-sigma, where sigma is the effective stellar velocity dispersion. We find an intrinsic rms scatter of ~0.3 dex in log MBH. By combining the bulge effective radii R_e measured in our analysis with sigma, we find a tight linear correlation (rms ~ 0.25 dex) between MBH and the virial bulge mass (propto R_e sigma^2), with ~ 0.002. A partial correlation analysis shows that MBH depends on both sigma and R_e, and that both variables are necessary to drive the correlations between MBH and other bulge properties.
description: Astrophysical Journal Letters, in press
Perceptions and mitigation of risk of waterborne disease in Vietnam among small scale integrated livestock farmers.
Creators: name: Hall, D.
name: Hall, D.
Publisher: name: Unknown
Year: 2018
Subjects: subject: Environmental Economics and Policy
subject: International Development
subject: Land Economics/Use
subject: water public health
subject: biodiversity conservation
subject: poverty alleviation
subject: emerging infectious disease
subject: agricultural policy

description: The integrated livestock, crops, and fish (VAC) model of integrated small scale agriculture has been important to economic and ecological sustainability in Vietnam for many centuries. Recently, emerging waterborne diseases including avian influenza have jeopardized the VAC model. In order to promote mitigation of the risk of waterborne disease in the VAC system, there needs to be recognition of the significant predictors of such behaviour, particularly with respect to water sources including well and rain water. We report on research results generated from 300 farms in each of North and South Vietnam that indicate the small scale farmers who are more likely to engage in mitigation of waterborne disease are those who raise pigs, perceive themselves to be more at risk of HPAI infection from well water, report they are good livestock managers, value the advice of health care workers, and where a female household member is the decision maker for family health. These results bear importance to water and health policy formulators in rural Vietnam.
Climate Change, Agricultural Productivity and Economic Performance: an exercise using a Dynamic CGE Model
Creators: name: Nazareth, M.
name: Cunha, D.
name: Gurgel, A.
name: Nazareth, M.
name: Cunha, D.
name: Gurgel, A.
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agricultural and Food Policy
subject: Environmental Economics and Policy
subject: Brazilian Regions
subject: Simulations
subject: CGE models

description: Agriculture is highly dependent on environment conditions, mainly temperature, precipitation and soil quality, thus it becomes the most vulnerable economic sector to the new climate conditions projected for the next decades. Therefore, knowing these impacts and the consequences for the rest of the economy is essential to map the effects and to elaborate, if necessary, mitigating environmental and economic policies. However, studies focusing on Brazil based on more regionalized data but linked to the rest of the world using dynamic computable general equilibrium (CGE) models are still very incipient. So this is precisely the gap that this article intends to fill, offering a modest contribution to the debate. Then, the objective of this paper is to determine the economic impact of the estimated changes in average agricultural productivity for the coming decades using a dynamic CGE model, the PAEGDyn linked to GTAP. Basically, the results found confirm trends in other works: the tropical regions in the world will be the most affected by the probable increase in the planet temperature, decreases in agricultural productivity and, thus, a reduction in economic performance.
The manifold spectra and morphologies of EROs
Creators: name: Cimatti, A.
name: Daddi, E.
name: Cassata, P.
name: Pignatelli, E.
name: Fasano, G.
name: Vernet, J.
name: Fomalont, E.
name: Kellermann, K.
name: Zamorani, G.
name: Mignoli, M.
name: Pozzetti, L.
name: Renzini, A.
name: Alighieri, S. di Serego
name: Franceschini, A.
name: Giallongo, E.
name: Fontana, A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Deep VLT optical spectroscopy, HST+ACS (GOODS) imaging and VLA observations are used to unveil the nature of a complete sample of 47 EROs with R-Ks>5 and Ks<20. The spectroscopic redshift completeness is 62%. Morphological classification was derived for each ERO through visual inspection and surface brightness profile fitting. Three main ERO morphological types are found: E/S0 galaxies (30-37%), spiral-like (24-46%) and irregular systems (17-39%). The only ERO detected in the radio is likely to host an obscured AGN. The average radio luminosity of the star-forming EROs undetected in the radio implies star formation rates of the order of 33 Msun yr^-1. The colors, redshifts and masses of the E/S0 galaxy subsample imply a minimum formation redshift z_f \sim 2. With this z_f there is enough time to have old and massive stellar spheroids already assembled at z \sim 1. We verify that the R-Ks vs. J-Ks color diagram is efficient in segregating old and dusty-star-forming EROs.
description: 5 pages, 5 figures, to appear in Astronomy & Astrophysics Letters
Correcting spanning errors with a fractal code
Creators: name: Nixon, Georgia M.
name: Brown, Benjamin J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The strongly correlated systems we use to realise quantum error-correcting codes may give rise to high-weight, problematic errors. Encouragingly, we can expect local quantum error-correcting codes with no string-like logical operators $-$ such as the cubic code $-$ to be robust to highly correlated, one-dimensional errors that span their lattice. The challenge remains to design decoding algorithms that utilise the high distance of these codes. Here, we begin the development of such algorithms by proposing an efficient decoder for the `Fibonacci code'; a two-dimensional classical code that mimics the fractal nature of the cubic code. Our iterative decoder finds a correction through repeated use of minimum-weight perfect matching by exploiting symmetries of the code. We perform numerical experiments that show our decoder is robust to one-dimensional, correlated errors. First, using a bit-flip noise model at low error rates, we find that our decoder demonstrates a logical failure rate that scales super exponentially in the linear size of the lattice. In contrast, a decoder that could not tolerate spanning errors would not achieve this rapid decay in failure rate with increasing system size. We also find a finite threshold using a spanning noise model that introduces string-like errors that stretch along full rows and columns of the lattice. These results provide direct evidence that our decoder is robust to one-dimensional, correlated errors that span the lattice.
description: 11 pages, 18 figures, comments welcome; v3 final author copy, minor changes in response to referee reports, additional data on runtime included in the appendices
Which Local Rice To Satisfy The Urban Consumers In Benin In Order To Ensure Rice Self-Sufficiency?
Creators: name: Kinkpe, T.
name: Adegbola, P.
name: Fiamohe, R.
name: Aza, F.
name: Agossadou, A.J.
name: Codjo, O.S.
name: Kinkpe, T.
name: Adegbola, P.
name: Fiamohe, R.
name: Aza, F.
name: Agossadou, A.J.
name: Codjo, O.S.
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agricultural and Food Policy
subject: Food Consumption/Nutrition/Food Safety
subject: International Development
subject: Food security
subject: Experimental auctions
subject: Quality competitiveness
subject: demand of local rice
subject: Benin republic

description: This study was initiated to identify the local rice varieties which can be promoted to satisfy the most the urban consumers’ requirements in Benin. Vikrey’s method of second price experimental auction was combined with “Endow-and-upgrade” method to collect data. The results show that the competitiveness of local rice vis-à-vis the most preferred imported rice is low. The most competitive local rice were the nonparboiled IR841, Gambiaca, and Nerica L20. Based on these results, the improved variety “IR841” and the local variety “Gambiaca” are the rice varieties to promote. However, the processing technology and the post-harvest activities need to be improved.
A possible hydrodynamical equivalence for astrophysical jets
Creators: name: Mendoza, S.
name: Hernandez, X.
name: Lee, W. H.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The idea of a unified model for quasars and micro-quasars has been considered for a long time, despite the different environments and physical conditions where both classes of objects reside. Here we show the existence of a simple scaling law, relating the maximum size of a jet to the properties of the gas medium into which it expands. This appears to be valid for all types of hydrodynamical jets, and can be thought of as a broad unified model. The expansion velocity of the jet and the physical properties of the surrounding gas combine in such a way that a limit to the maximum extent of jets at different scales can be obtained.
description: 12 pages, 1 figure. Accepted for publication on Rev.Mex.Astron.Astrofis. Expanded version
Pyrgita valida C. L. Brehm
Creators: name: Lecroy, Mary
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Passeriformes
Paradisaeidae
Pyrgita
Pyrgita valida

description: Pyrgita valida C.L. Brehm
Pyrgita valida C.L. Brehm, 1842: col. 887 (Dalmatien).
Now Passer domesticus domesticus (Linnaeus, 1758). See Hartert, 1918a: 14.
LECTOTYPE: AMNH 456427, adult male, Dalmatia, Croatia, on 24 March 1830. From the Brehm Collection via the Rothschild Collection.
COMMENTS: In the original description, Brehm designated no type but said that valida lived in Dalmatia. By listing the above Dalmatian specimen as the type, Hartert (1918a: 14) designated it the lectotype; he noted on the Rothschild label that Brehm had probably received it from Feldegg. It bears a Rothschild type label and is the only Dalmatian specimen collected before the description and marked valida by Brehm that came to AMNH with the Rothschild Collection. AMNH 456415 is the only other specimen cataloged as valida that remains in AMNH, but it was not collected until 1846, after the name was introduced. Specimens cataloged as valida and bearing numbers AMNH 456414, 456416–456426, and 456428 were exchanged to ZFMK. Some of them may be paralectotypes if they were collected prior to 1842 and are marked valida by Brehm.
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 5, DOI: 10.1206/885.1, http://zenodo.org/record/4629954
Dirty black holes: Symmetries at stationary non-static horizons
Creators: name: Medved, A J M
name: Martin, Damien
name: Visser, Matt
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We establish that the Einstein tensor takes on a highly symmetric form near the Killing horizon of any stationary but non-static (and non-extremal) black hole spacetime. [This follows up on a recent article by the current authors, gr-qc/0402069, which considered static black holes.] Specifically, at any such Killing horizon -- irrespective of the horizon geometry -- the Einstein tensor block-diagonalizes into ``transverse'' and ``parallel'' blocks, and its transverse components are proportional to the transverse metric. Our findings are supported by two independent procedures; one based on the regularity of the on-horizon geometry and another that directly utilizes the elegant nature of a bifurcate Killing horizon. It is then argued that geometrical symmetries will severely constrain the matter near any Killing horizon. We also speculate on how this may be relevant to certain calculations of the black hole entropy.
description: 21 pages; plain LaTeX
Diagnostics of macroscopic quantum states of Bose-Einstein condensate in double-well potential by nonstationary Josephson effect
Creators: name: Vol, E. D.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We propose a method of diagnostic of a degenerate ground state of Bose condensate in a double well potential. The method is based on the study of the one-particle coherent tunneling under switching the time-dependent weak Josephson coupling between the wells. We obtain a simple expression that allows to determine the phase of the condensate and the total number of the particles in the condensate from the relative number of the particles in two wells $Δn =n_1-n_2$ measured before the Josephson coupling is switched on and after it is switched off. The specifics of the application of the method in the cases of the external and the internal Josephson effect are discussed.
description: 3 pages
On formation of domain wall lattices
Creators: name: Antunes, Nuno D.
name: Pogosian, Levon
name: Vachaspati, Tanmay
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Condensed Matter (cond-mat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the formation of domain walls in a phase transition in which an S_5\times Z_2 symmetry is spontaneously broken to S_3\times S_2. In one compact spatial dimension we observe the formation of a stable domain wall lattice. In two spatial dimensions we find that the walls form a network with junctions, there being six walls to every junction. The network of domain walls evolves so that junctions annihilate anti-junctions. The final state of the evolution depends on the relative dimensions of the simulation domain. In particular we never observe the formation of a stable lattice of domain walls for the case of a square domain but we do observe a lattice if one dimension is somewhat smaller than the other. During the evolution, the total wall length in the network decays with time as t^{-0.71}, as opposed to the usual t^{-1} scaling typical of regular Z_2 networks.
description: 7 pages, 4 figures. Minor changes, final version accepted for publication in Phys. Rev. D
Holzbilanzen 2015 bis 2017 für die Bundesrepublik Deutschland und Neuberechnung der Zeitreihe der Gesamtholzbilanz ab 1995
Creators: name: Weimar, Holger
name: Weimar, Holger
Publisher: name: Unknown
Year: 2018
Subjects: subject: Production Economics
subject: Resource /Energy Economics and Policy
subject: Germany
subject: Deutschland
subject: Holzeinschlag
subject: fellings
subject: Gesamtholzbilanz
subject: timber balances
subject: Holzaufkommen
subject: timber production
subject: Holzverwendung
subject: timber use

description: Der vorliegende Arbeitsbericht enthält die Holzbilanzen der Bundesrepublik Deutschland für den Berichtszeitraum 2015 bis 2017 sowie eine Neuberechnung der Gesamtholzbilanz für den Zeitraum von 1995 bis 2017. Die Neuberechnung erfolgte, da mit diesem Bericht die Einschlagsrückrechnung des Thünen-Instituts für Internationale Waldwirtschaft und Forstökonomie die amtliche Statistik als Datenquelle für den Holzeinschlag ersetzt. Die Holzbilanzen für 2015 und 2016 sind auf Grundlage endgültiger Daten berechnet. Für 2017 basieren diese zum Teil auf vorläufigen Daten (z. B. Außenhandelsdaten des Statisti-schen Bundesamtes). Weiterhin sind die nach Warengruppen differenzierten Außenhandels-bilanzen sowie die fortgeschriebenen Zeitreihen ausgewählter Kennzahlen der Holzbilanzen dargestellt. Die Flussdiagramme veranschaulichen die Bedeutung der einzelnen Flussgrößen der Forst- und Holzwirtschaft für Deutschland.
description: DOI:10.3220/WP1533821115000
Entwicklungen des Obstbaus in Deutschland von 2005 bis 2017: Obstarten, Anbauregionen, Betriebsstrukturen und Handel
Development of fruit production in Germany from 2006 to 2017: fruits, fruit producing regions, farm structures and trade
Creators: name: Garming, Hildegard
name: Dirksmeyer, Walter
name: Bork, Linda
name: Garming, Hildegard
name: Dirksmeyer, Walter
name: Bork, Linda
Publisher: name: Unknown
Year: 2018
Subjects: subject: Crop Production/Industries
subject: International Relations/Trade
subject: Production Economics
subject: tree fruit cultivation
subject: soft fruits
subject: strawberries
subject: structural change
subject: fruit statistics
subject: national trade flows of fresh fruits
subject: import and export of fruits
subject: Baumobstanbau
subject: Strauchbeerenanbau
subject: Erdbeeren
subject: Strukturwandel
subject: Obstanbaustatistik
subject: Warenstromanalyse Frischobst
subject: Importe und Exporte Obst

description: In 2017, the German fruit production comprises about 11.000 farms cultivating fruits on around 76,000 hectares. It is divided into three sections: tree fruits (49,934 ha), soft fruits (6,838 ha) and strawberries (18,649 ha). This report provides a comprehensive overview of the development of the fruit production in major fruit producing regions in Germany and associated farm structures from 2006 to 2016/17. Additionally, a detailed characterization of fruit cultivation on the level of the federal states and at district level for the most important fruit crops is presented. In the period under review, the acreage of tree fruit cultivation initially declined slightly before it recovered 2017, according to the fruit tree census. In particular, the acreage of sour cherries has declined significantly between 2012 and 2017, while the area under sweet cherries has risen slightly between 2012 and 2017, after a decline in the previous period between 2007 and 2012. The cultivation of pears and plums has stabilized after a decline period between 2007 and 2012. With about 68% of the fruit tree area, apples are the major fruit crop cultivated in Germany. The area under apple cultivation has remained more or less constant over the past 12 years. In the same period, berry production has increased by around 44 %. This is mainly due to the increase in blueberry cultivation, but the total acreage of sea buckthorn, aronia berries, gooseberries, black-berries and elderberries has also increased. While the acreage of open field raspberry cultivation has decreased in size, protected raspberry production has increased significantly. Approximately one quarter of the berry fruit acreage is devoted to organic farming. In German crop statistics, strawberries are not summarized in the berry statistics but presented as a separate category. In the period under review, the area for strawberry cultivation varied from 17,500 ha in 2006 to around 16,000 ha in 2009 and then increased to a value of around 19,400 ha by 2013. Similar to raspberry production systems, protected strawberry production acreage is rising while open field cultivation area has declined between 2013 and 2016.
BRST symmetries in free particle system on toric geometry
Creators: name: Hong, Soon-Tae
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study a free particle system residing on a torus to investigate its Becci-Rouet-Stora-Tyutin symmetries associated with its Stückelberg coordinates, ghosts and anti-ghosts. By exploiting zeibein frame on the toric geometry, we evaluate energy spectrum of the system to describe the particle dynamics. We also investigate symplectic structures involved in the second-class system on the torus.
description: 9 pages, revised with new references and new section added
Angular Momentum Transfer in Star-Discs Encounters: The Case of Low-Mass Discs
Creators: name: Pfalzner, S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A prerequisite for the formation of stars and planetary systems is that angular momentum is transported in some way from the inner regions of the accretion disc. Tidal effects may play an important part in this angular momentum transport. Here the angular momentum transfer in an star-disc encounter is investigated numerically for a variety of encounter parameters in the case of low mass discs. Although good agreement is found with analytical results for the entire disc, the loss {\it inside} the disc can be up to an order of magnitude higher than previously assumed. The differences in angular momentum transport by secondaries on a hyperbolic, parabolic and elliptical path are shown, and it is found that a succession of distant encounters might be equally, if not more, successful in removing angular momentum than single close encounter.
description: 11pages, 8 figures, 1 table
An overview of dropped hock syndrome cases in New Zealand cattle
Creators: name: IA Topham
name: KE Dittmer
name: KN Buckle
name: MC Gates
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Computational Biology

description: Case history: Data were collected from 47 outbreaks of dropped hock syndrome (DHS) that were reported by veterinarians in New Zealand to the Ministry for Primary Industries between October 2012 and August 2017. There were 181 affected dairy cows from 44 farms. Of those with records, all 86 were aged between 2–3 years-old, and 4/94 (4%) were Friesian, 56/94 (60%) were Jersey and 33/94 (35%) were Jersey/Friesian cross. Of the 47 outbreaks, 45 (96%) occurred during winter and 37 (79%) in the South Island. Clinical findings: Of 151 cases with records, hindlimb weakness (117 cows), shortened gait (112 cows) and dropped hocks (106 cows) were most commonly reported, with 110 cases being bilaterally affected. The level of diagnostic work-up and the data recorded by veterinarians for each outbreak were highly variable. Creatine kinase and aspartate aminotransferase activities were reported for 22 cases and were within normal ranges for cows with mild disease but increased in cows with severe disease. Concentrations of Cu in serum and liver were below normal for 13/22 and 9/10 cows, respectively, from six outbreaks. Of 41 cows with records for clinical outcomes, 12 had complete resolution, 18 had partial resolution, and 11 had no resolution. Pathological findings: Post-mortem data were available from 26 cases. Muscle necrosis and haemorrhage of the origin of the gastrocnemius muscle were the key gross findings. In 14 cows with records for muscle histopathology, myodegeneration and recent haemorrhage were observed, and connective tissue pathology was reported to predate muscular pathology in seven cases. Diagnosis: DHS appeared to be a degenerative rather than inflammatory condition primarily affecting the connective tissue of the hind limb, especially at the dense collagen interfaces of the gastrocnemius. Although no evidence of neuropathy was found, this cannot definitively be ruled out as a potential cause. Clinical relevance: A more standardised and systematic approach to investigating cases and recording case data is required to make robust inferences about the aetiology, risk factors, and treatment interventions for DHS.
Flattening of dark matter cusps during mergers: model of M31
Creators: name: Boldrini, Pierre
name: Mohayaee, Roya
name: Silk, Joseph
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We run high resolution fully GPU N-body simulations to demonstrate that the dark matter distribution in M31 is well-fitted by a core-like profile. Rich observational data especially on the giant stellar stream provides stringent constraints on the initial conditions of our simulations. We demonstrate that accretion of a satellite on a highly eccentric orbit heats up the central parts of M31, causes an outward migration of dark matter particles, flattens the central cusp over more than a decade in scale and generates a new model-independent dark matter profile that is well-fitted by a core. Our results imply that core-like central profiles could be a common feature of massive galaxies that have been initially cuspy but have accreted satellites on nearly radial orbits.
description: 14 pages, 10 figures. Version to appear in ApJ
On-Farm Grain Storage Losses: Potential Gains from Improved Storage Facility and Management Practices in Afghanistan
Creators: name: Ahmadzai, Hayatullah
name: Ahmadzai, Hayatullah
Publisher: name: Unknown
Year: 2011

description: A thesis submitted to the faculty of Purdue University in partial fulfillment of the requirements for the degree of Master of Science. Advisor: Roman M. Keeney
Corvus coronoides subsp. madaraszi Stresemann
Creators: name: Lecroy, Mary
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Passeriformes
Corvidae
Corvus
Corvus coronoides
Corvus coronoides madaraszi stresemann

description: Corvus coronoides madaraszi Stresemann
Corvus coronoides madaraszi Stresemann, 1916: 285 (Colombo).
Now Corvus macrorhynchos culminatus Sykes, 1832. See Hartert, 1919: 126; 1929a: 50; Blake and Vaurie, 1962: 274; Madge and Burn, 1994: 164–165; Dickinson et al., 2004c: 96–102; 2004b: 123–124; Rasmussen and Anderton, 2005: 599– 600; and dos Anjos, 2009: 631.
HOLOTYPE: AMNH 674371, adult male, collected at Colombo, 06.55N, 79.52E (Times Atlas), Sri Lanka, on 13 February 1894, by E. Ernest Green. From the Rothschild Collection.
COMMENTS: In the original description, Stresemann noted that the type with the above data was in the Rothschild Collection. Although he gave measurements for 11 specimens, many of them from the literature, the holotype was the only specimen in the Rothschild Collection.
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 127, DOI: 10.1206/885.1, http://zenodo.org/record/4629954
Pitfalls of In-Domain Uncertainty Estimation and Ensembling in Deep Learning
Creators: name: Ashukha, Arsenii
name: Lyzhov, Alexander
name: Molchanov, Dmitry
name: Vetrov, Dmitry
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Uncertainty estimation and ensembling methods go hand-in-hand. Uncertainty estimation is one of the main benchmarks for assessment of ensembling performance. At the same time, deep learning ensembles have provided state-of-the-art results in uncertainty estimation. In this work, we focus on in-domain uncertainty for image classification. We explore the standards for its quantification and point out pitfalls of existing metrics. Avoiding these pitfalls, we perform a broad study of different ensembling techniques. To provide more insight in this study, we introduce the deep ensemble equivalent score (DEE) and show that many sophisticated ensembling techniques are equivalent to an ensemble of only few independently trained networks in terms of test performance.
Supplementary document for Real-time in-situ optical detection of fluid viscosity based on Beer-Lambert law and machine learning - 5968508.pdf
Creators: name: Zhou, Zhuoyan
name: Zhao, Lilong
name: Xinyang, Zhang
name: fenping, cui
name: Guo, Linfeng
Publisher: name: Optica Publishing Group
Year: 2022
Subjects: Uncategorized

description: Principal component analysis coefficient matrix
INGLIZ TILINI O'QITISHNING ZAMONAVIY USULLARIDAGI YUTUQLAR
Creators: name: Qodirova, Gulbaxor
name: Tillaboyeva, Feruza
name: Abdullayeva, Nargiza
name: Turaxodjayeva, Moxidil
name: Muminova, Nodira
Publisher: name: Zenodo
Year: 2025

description: Til ta'limi sohasida so'nggi yillarda, ayniqsa ingliz tilini ikkinchi yoki chet tili sifatida o'rgatishda sezilarli yutuqlarga guvoh bo'ldi. Ushbu maqolada ingliz tilini o'qitishning an'anaviy usullari, texnologiyalar, innovatsion pedagogik usullar va tilni o'rganish natijalarini oshirish uchun talabaga yo'naltirilgan yondashuvdan foydalanishda inqilob yaratgan turli zamonaviy uslub va yondashuvlar o'rganiladi. Ushbu usullarning samaradorligini o'rganish orqali biz o'qituvchilar raqamli asrda o'quvchilarning turli ehtiyojlarini qondirish uchun o'zlarining o'qitish amaliyotlarini qanday optimallashtirishi mumkinligi haqida tushuncha berishni maqsad qilganmiz.
Fluctuations of Complex Networks: Electrical Properties of Single Protein Nanodevices
Creators: name: Pennetta, C.
name: Akimov, V.
name: Alfinito, E.
name: Reggiani, L.
name: Gomila, G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Molecular Networks (q-bio.MN)
subject: Other Condensed Matter (cond-mat.other)
subject: Biological Physics (physics.bio-ph)
subject: Other Quantitative Biology (q-bio.OT)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We present for the first time a complex network approach to the study of the electrical properties of single protein devices. In particular, we consider an electronic nanobiosensor based on a G-protein coupled receptor. By adopting a coarse grain description, the protein is modeled as a complex network of elementary impedances. The positions of the alpha-carbon atoms of each amino acid are taken as the nodes of the network. The amino acids are assumed to interact electrically among them. Consequently, a link is drawn between any pair of nodes neighboring in space within a given distance and an elementary impedance is associated with each link. The value of this impedance can be related to the physical and chemical properties of the amino acid pair and to their relative distance. Accordingly, the conformational changes of the receptor induced by the capture of the ligand, are translated into a variation of its electrical properties. Stochastic fluctuations in the value of the elementary impedances of the network, which mimic different physical effects, have also been considered. Preliminary results concerning the impedance spectrum of the network and its fluctuations are presented and discussed for different values of the model parameters.
description: 16 Pages and 10 Figures published in SPIE Proceedings of the II International Symposium on Fluctuation and Noise, Maspalomas,Gran Canaria,Spain, 25-28 May 2004
9C: A Survey of Radio Sources at 15 GHz with the Ryle Telescope
Creators: name: Waldram, Elizabeth M.
name: Pooley, Guy G.
name: Grainge, Keith J. B.
name: Jones, Michael E.
name: Saunders, Richard D. E.
name: Scott, Paul F.
name: Taylor, Angela C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The fields chosen for the first observations of the cosmic microwave background with the Very Small Array have been surveyed with the Ryle Telescope at 15 GHz. We have covered three regions around RA 00h20m Dec +30deg, RA 09h40m Dec +32deg and RA 15h40m Dec +43deg (J2000), an area of 520 deg^2. There are 465 sources above the current completeness limit of approximately 25 mJy, although a total of ~760 sources have been detected, some as faint as 10 mJy. This paper describes our techniques for observation and data analysis; it also includes source counts and some discussion of spectra and variability. Preliminary source lists are presented.
description: 12 pages, 13 figures, accepted for publication in MNRAS
Effective interactions mediated between two permeable disks in an active fluid
Creators: name: Sebtosheikh, Mahmoud
name: Naji, Ali
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biological Physics (physics.bio-ph)
subject: Chemical Physics (physics.chem-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We study steady-state properties of a bath of active Brownian particles (ABPs) in two dimensions in the presence of two fixed, permeable (hollow) disklike inclusions, whose interior and exterior regions can exhibit mismatching motility (self-propulsion) strengths for the ABPs. We show that such a discontinuous motility field strongly affects spatial distribution of ABPs and thus also the effective interaction mediated between the inclusions through the active bath. Such net interactions arise from soft interfacial repulsions between ABPs that sterically interact with and/or pass through permeable membranes assumed to enclose the inclusions. Both regimes of repulsion and attractive (albeit with different mechanisms) are reported and summarized in overall phase diagrams.
description: 10 pages, 8 figures
Transient chaotic dimensionality expansion by recurrent networks
Creators: name: Keup, Christian
name: Kühn, Tobias
name: Dahmen, David
name: Helias, Moritz
Publisher: name: arXiv
Year: 2020
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Neurons in the brain communicate with spikes, which are discrete events in time and value. Functional network models often employ rate units that are continuously coupled by analog signals. Is there a qualitative difference implied by these two forms of signaling? We develop a unified mean-field theory for large random networks to show that first- and second-order statistics in rate and binary networks are in fact identical if rate neurons receive the right amount of noise. Their response to presented stimuli, however, can be radically different. We quantify these differences by studying how nearby state trajectories evolve over time, asking to what extent the dynamics is chaotic. Chaos in the two models is found to be qualitatively different. In binary networks we find a network-size-dependent transition to chaos and a chaotic submanifold whose dimensionality expands stereotypically with time, while rate networks with matched statistics are nonchaotic. Dimensionality expansion in chaotic binary networks aids classification in reservoir computing and optimal performance is reached within about a single activation per neuron; a fast mechanism for computation that we demonstrate also in spiking networks. A generalization of this mechanism extends to rate networks in their respective chaotic regimes.
description: Final, shortened post-print version. (see v3 for extended material on microscopic and macroscopic chaos)
MPEC 2025-G79 : 2020 XT2
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Irreducibility of random polynomials of bounded degree
Creators: name: Pham, Huy Tuan
name: Xu, Max Wenqiang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Number Theory (math.NT)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: It is known that random monic integral polynomials of bounded degree $d$ and integral coefficients distributed uniformly and independently in $[-H,H]$ are irreducible over $\mathbb{Z}$ with probability tending to $1$ as $H\to \infty$. In this paper, we give a general criterion for guaranteeing the same conclusion under much more general coefficient distributions, allowing them to be nonuniformly and dependently distributed over arbitrary sets.
Decoherence, the measurement problem, and interpretations of quantum mechanics
Creators: name: Schlosshauer, Maximilian
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Environment-induced decoherence and superselection have been a subject of intensive research over the past two decades, yet their implications for the foundational problems of quantum mechanics, most notably the quantum measurement problem, have remained a matter of great controversy. This paper is intended to clarify key features of the decoherence program, including its more recent results, and to investigate their application and consequences in the context of the main interpretive approaches of quantum mechanics.
description: 41 pages. Final published version
Statistical physics for complex cosmic structures
Creators: name: Pietronero, Luciano
name: Labini, Francesco Sylos
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Cosmic structures at large scales represent the earliest and most extended form of matter condensation. In this lecture we review the application of the methods and concepts of modern statistical physics to these structures. This leads to a new perspective in the field which can be tested by the many new data which are appearing in the near future. In particular, galaxy structures show fractal correlation up to the present observational limits. The cosmic microwave background radiation, which should trace the initial conditions from which these structures have emerged through gravitational dynamics, is instead extremely smooth. Understanding the relation between the complex galaxy structures and the smooth microwave background radiation represents an extremely challenging problem in the field of structure formation.
description: 12 pages, 4 postscript figures, to be published in the Proceedings of the Conference ``Advances in solid state physics 2004'' DPG Spring Meeting 2004 in Regensburg, Volume 44, Springer-Verlag (Berlin, 2004)
title: The role of Syk protein tyrosine kinase in B cell development and function
Creators: name: Schweighoffer, Edina
Publisher: name: The Open University
Year: 2002

description: Signals reaching B cells through the B cell antigen receptor (BCR) expressed on the cell-surface can affect both the development, differentiation and activation status of B cells. One of the early mediators of signalling through the BCR is the protein tyrosine kinase (PTK) Syk. The exact mechanisms how Syk gets recruited to the BCR, how it becomes activated and what the downstream targets are in different responses still need to be clarified.

Gene targeted homozygous mutant (Syk°) mice stress the importance of Syk in BCR signalling. B cell development is severely affected in these mice: very few cells reach the immature stage, and even these are prevented from further maturation, pointing to at least two steps in B cell differentiation where Syk is implicated.

To further explore the relative contribution of Syk and two other tyrosine kinases, Lyn and ZAP-70, to the early steps of B cell development, I conducted genetic experiments, generating double knockout (Syk°Lyn° and Syk°ZAP-70°) animals.

Analyses of these mice revealed a survival role for Syk and Lyn, a survival and differentiation role for Syk and ZAP-70. This latter was surprising, since ZAP-70 has not been assumed to function in B cell lineage cells. Results presented here demonstrate that ZAP-70 is indeed expressed and functional within B lineage cells, and can replace Syk in some, but not all aspects of pre/BCR signalling.

 Importantly, pre-BCR signalling leading to differentiation (as defined by changes in surface protein expression), proliferation and allelic exclusion cannot proceed without the involvement of at least one of the Syk/ZAP-70 family protein kinases.
Signature of neutrino mass hierarchy in gravitational lensing
Creators: name: Swami, Himanshu
name: Lochan, Kinjalk
name: Patel, Ketan M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In flat spacetime, the vacuum neutrino flavour oscillations are known to be sensitive only to the difference between the squared masses, and not to the individual masses, of neutrinos. In this work, we show that the lensing of neutrinos induced by a gravitational source substantially modifies this standard picture and it gives rise to a novel contribution through which the oscillation probabilities also depend on the individual neutrino masses. A gravitating mass located between a source and a detector deflects the neutrinos in their journey, and at a detection point, neutrinos arriving through different paths can lead to the phenomenon of interference. The flavour transition probabilities computed in the presence of such interference depend on the individual masses of neutrinos whenever there is a non-zero path difference between the interfering neutrinos. We demonstrate this explicitly by considering an example of weak lensing induced by a Schwarzschild mass. Through the simplest two flavour case, we show that the oscillation probability in the presence of lensing is sensitive to the sign of $Δm^2 = m_2^2 -m_1^2$, for non-maximal mixing between two neutrinos, unlike in the case of standard vacuum oscillation in flat spacetime. Further, the probability itself oscillates with respect to the path difference and the frequency of such oscillations depends on the absolute mass scale $m_1$ or $m_2$. We also give results for realistic three flavour case and discuss various implications of gravitationally modified neutrino oscillations and means of observing them.
description: 21 pages, 5 figures. Minor edits in Eqs. 19 and 20. Results remain unchanged
Theory of shell structure and of the "magic" effect in spherical nuclei
Creators: name: Nosov, V. G.
name: Kamchatnov, A. M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A consistent theory is developed of the volume energy oscillations of spherical nuclei due to sharpness of the Fermi distribution boundary for quasiparticles. The lowest value of the oscillating part of the energy corresponds to a magic nucleus. A formula is obtained for the corresponding limiting momentum of a quasiparticle and it is shown that we have here an isolated point of a temperatureless second-order phase transition. An expression for the discontinuity of the derivative of the energy of the body with respect to the number of particles is obtained in the case of a sharp (step-like) Fermi distribution limit. Comparison with experimental nuclear-mass data permits some conclusions to be drawn regarding the true structure of the boundary layer of the Fermi distribution and regarding its variation with increasing nuclear size. In the region of magic nuclei actually accessible up to the present time, apparently no signs are observed of any appreciably expressed residual phenomenon, such as the Cooper phenomenon, which would result in instability of the energy spectrum of infinite nuclear matter with an absolutely sharp Fermi limit for quasiparticles.
description: 16 pages, 4 figures in GIF format
"You'll Be Alice Adventuring in Wonderland!" Processes, Challenges, and Opportunities of Creating Animated Virtual Reality Stories
Creators: name: Yuan, Lin-Ping
name: Han, Feilin
name: Xie, Liwenhan
name: Zhang, Junjie
name: Zhao, Jian
name: Qu, Huamin
Publisher: name: arXiv
Year: 2025
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Graphics (cs.GR)
subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences

description: Animated virtual reality (VR) stories, combining the presence of VR and the artistry of computer animation, offer a compelling way to deliver messages and evoke emotions. Motivated by the growing demand for immersive narrative experiences, more creators are creating animated VR stories. However, a holistic understanding of their creation processes and challenges involved in crafting these stories is still limited. Based on semi-structured interviews with 21 animated VR story creators, we identify ten common stages in their end-to-end creation processes, ranging from idea generation to evaluation, which form diverse workflows that are story-driven or visual-driven. Additionally, we highlight nine unique issues that arise during the creation process, such as a lack of reference material for multi-element plots, the absence of specific functionalities for story integration, and inadequate support for audience evaluation. We compare the creation of animated VR stories to general XR applications and distill several future research opportunities.
description: Conditionally accepted to the ACM Conference on Human Factors in Computing Systems (CHI'25)