cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Volucella parva Rondani 1848
Creators: name: Sforzi, Alessandra
name: Sommaggio, Daniele
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Bombyliidae
Volucella
Volucella parva

description: Volucella parva Rondani, 1848
ORIGINAL DESCRIPTION: 1848b: 66.
TYPE LOCALITY: “ Brasile [Brazil]” (Rondani 1848b: 63).
TYPE MATERIAL: not found in this study.
CURRENT STATUS: valid species, as Copestylum parvum (Thompson et al. 1976: 81).
REMARKS: Rondani (1848b: 66) described Volucella parva from a single female: “ in individuo nostro [in our specimen]” received from G. Mussino. Rondani was unsure of the identity of this nominal species but considered it very similar to Volucella vaga (Fabricius, 1795) now in the genus Copestylum Macquart, 1846. This is one of the few exotic species described in Rondani (1848b) that Costa (1866) did not list as in the MZUN. We could not locate any type specimens of this nominal species in our study.
description: Published as part of Sforzi, Alessandra & Sommaggio, Daniele, 2021, Catalog of the Diptera types described by Camillo Rondani, pp. 1-438 in Zootaxa 4989 (1) on page 274, DOI: 10.11646/zootaxa.4989.1.1, http://zenodo.org/record/4980621
Interrelationships Between Vent Fluid Chemistry, Temperature, Seismic Activity, and Biological Community Structure at a Mussel-Dominated, Deep-Sea Hydrothermal Vent Along the East Pacific Rise
Creators: name: Lutz, Richard A.
name: Shank, Timothy M.
name: Luther III, George W.
name: Vitriani, Costantino
name: Tolstoy, Maria
name: Nuzzio, Donald B.
name: Moore, Tommy S.
name: Waldhauser, Felix
name: Crespo-Medina, Melitza
name: Chatziefthimiou, Aspassia D.
name: Annis, Eric R.
name: Reed, Andrew J.
Publisher: name: Columbia University
Year: 2008
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Chemical oceanography
subject: Marine biology
subject: Marine ecology
subject: Submarine geology

description: In April 1991, submarine volcanic eruptions initiated the formation of numerous hydrothermal vents between 9°45′ and 9°52′N along the crest of the East Pacific Rise (EPR). Dramatic changes in biological community structure and vent fluid chemistry have been documented throughout this region since the eruptive event. By April 2004, mussels (Bathymodiolus thermophilus) dominated the faunal assemblages at several of the vent sites formed during of after the 1991 eruptions, whereas other habitats within the region were dominated by the vestimentiferan Riftia pachyptila. In the present paper, we build upon the extensive data sets obtained at these sites over the past decade and describe a manipulative experiment (conducted at 9°49.94′N; 104°14.43′W on the EPR) designed to assess interrelationships between vent fluid chemistry, temperature, biological community structure, and seismic activity. To this end, in situ voltammetric systems and thermal probes were used to measure H₂S/HS− and temperature over time in a denuded region of an extensive mussel bed in which an exclusion cage was placed to inhibit the subsequent migration of mussels into the denuded area. Fluid samples were taken from the same locations to characterize the associated microbial constituents. Basalt blocks, which were placed in the cage in April 2004 and subsequently recovered in April 2005, were colonized by more than 25 different species of invertebrates, including numerous vestimentiferans and remarkably few mussels. Recorded temporal changes in vent fluid chemistry and temperature regimes, when coupled with microbiological characterization of the vent fluids and seismic activity data obtained from ocean bottom seismometers, shed considerable light on factors controlling biological community structure in these hydrothermal ecosystems.
On the Accuracy of the ALMA Flux Calibration in the Time Domain and across Spectral Windows
Creators: name: Francis, Logan
Publisher: name: Zenodo
Year: 2020

description: A diverse array of science goals requires accurate flux calibration of observations with the Atacama Large Millimeter/submillimeter array (ALMA); however, this goal remains challenging due to the stochastic time-variability of the “grid” quasars ALMA uses for calibration. In this work, we use 343.5 GHz (Band 7) ALMA Atacama Compact Array observations of four bright and stable young stellar objects over seven epochs to independently assess the accuracy of the ALMA flux calibration and to refine the relative calibration across epochs. The use of these four extra calibrators allows us to achieve an unprecedented relative ALMA calibration accuracy of ?3%. On the other hand, when the observatory calibrator catalog is not up to date, the Band 7 data calibrated by
 the ALMA pipeline may have a flux calibration poorer than the nominal 10%, which can be exacerbated by weather-related phase decorrelation when self-calibration of the science target is either not possible or not attempted. We also uncover a relative flux calibration uncertainty between spectral windows of 0.8%, implying that measuring spectral indices within a single ALMA band is likely highly uncertain. We thus recommend various methods for science goals requiring high flux accuracy and robust calibration, in particular, the observation of additional calibrators combined with a relative calibration strategy, and observation of solar system objects for high absolute accuracy.
Era Digital: As Novas Manias dos Consumidores
Creators: name: Costa, Sara
Publisher: name: The Trends Hub
Year: 2022

description: Vivemos num mundo em constante evolução e mudança. Tudo é forçado a adaptar-se a uma nova realidade, incluindo os consumidores que vão alterando o seu comportamento.
description: The Trends Hub, N.º 1 (2021): The Trends Hub
Bremsstrahlung and black hole production from collisions of ultra-boosted particles at non-zero impact parameter
Creators: name: Constantinou, Yiannis
name: Taliotis, Anastasios
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The collision of two massless, gravitationally interacting, point-like massless particles, boosted to the speed of light, colliding with an impact parameter b is being investigated. The collision takes place in four space-time flat dimensional background. A perturbative scheme is employed and the corrections to the energy momentum tensor and to the metric are computed and closed form formulas are provided. This includes the back-reaction on the metric after the collision. Including such corrections suggests that the tracelessness of the initial stress tensors of the colliding particles is preserved during and after the collision. The necessity for introducing an impact parameter in the perturbative treatment is highlighted and the breaking of the underlying perturbative approach at b = 0 is motivated. In addition, the energy radiated in the form of gravitational bremsstrahlung radiation is discussed while an example from gravitational-waves collision is being studied.
description: 16 pages, 7 figures
On the thermodynamics of fermions at any temperature based on parametrized partition function
Creators: name: Xiong, Yunuo
name: Xiong, Hongwei
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: In this work we study the recently developed parametrized partition function formulation and show how we can infer the thermodynamic properties of fermions based on numerical simulation of bosons and distinguishable particles at various temperatures. In particular, we show that in the three dimensional space defined by energy, temperature and the parameter characterizing parametrized partition function, we can map the energies of bosons and distinguishable particles to fermionic energies through constant-energy contours. We apply this idea to both noninteracting and interacting Fermi systems and show it is possible to infer the fermionic energies at all temperatures, thus providing a practical and efficient approach to obtain thermodynamic properties of Fermi systems with numerical simulation. As an example, we present energies and heat capacities for 10 noninteracting fermions and 10 interacting fermions (more fermions are provided in the appendix) and show good agreement with the analytical result for noninteracting case.
description: 20 pages, 7 figures, Accepted by Physical Review E
Internal controllability of the Korteweg-de Vries equation on a bounded domain
Creators: name: Filho, Roberto Capistrano
name: Pazoto, Ademir
name: Rosier, Lionel
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: This paper is concerned with the control properties of the Korteweg-de Vries (KdV) equation posed on a bounded interval with a distributed control. When the control region is an arbitrary open subdomain, we prove the null controllability of the KdV equation by means of a new Carleman inequality. As a consequence, we obtain a regional controllability result, the state function being controlled on the left part of the complement of the control region. Finally, when the control region is a neighborhood of the right endpoint, an exact controllability result in a weighted L2 space is also established.
Using Epidemiology as an Aid in Feedlot Disease Management
Creators: name: Ribble, Carl S.
name: Van Donkersgoed, Joyce
name: Harland, Richard J.
name: Janzen, Eugene D.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1991

description: The recent introduction of computers to the feedlot industry for monitoring animal health has markedly improved the efficiency with which we can use epidemiology as a means for developing new management techniques to prevent disease. With the computer we can keep accurate health records which can be analyzed rapidly by the attending veterinarian on a regular basis. We describe the kind of system we find useful for recording data on a computer in the feedlot. We also describe how those data can be summarized to help develop an epidemiological approach to disease management in the feedlot, using respiratory disease and hemophilosis as specific examples. Our experience is based upon working in medium-sized feedlots with capacities of several thousand to 15,000 or more head.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1991
Volucella pectoralis Rondani 1863
Creators: name: Sforzi, Alessandra
name: Sommaggio, Daniele
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Bombyliidae
Volucella
Volucella pectoralis

description: Volucella pectoralis Rondani, 1863
ORIGINAL DESCRIPTION: 1863: 3.
TYPE LOCALITY: “ America meridion. [South America]”.
TYPE MATERIAL: 1 ♂, syntype (covered with mold) (MZUN: Box Coll. entomol. extra, Fam. Sirfidei - Gen. Aphritis a Phalacromya): Volucella pectoralis Rnd., Amer. mer. [= South America] / M. Zool. N° 11213 / ♂; 1 ♀, syntype (covered with mold) (MZUN: Box Coll. entomol. extra, Fam. Sirfidei - Gen. Aphritis a Phalacromya): ♀.
CURRENT STATUS: valid species, as Copestylum pectorale (Thompson et al. 1976: 81).
REMARKS: Rondani (1863: 3) described both sexes of Volucella pectoralis without specifying the exact number of specimens, but giving a single measurement of length, from material received from V. Ghiliani. Costa (1866: 31) listed two MZUN specimens numbered “611”. We also found two syntypes in this study.
description: Published as part of Sforzi, Alessandra & Sommaggio, Daniele, 2021, Catalog of the Diptera types described by Camillo Rondani, pp. 1-438 in Zootaxa 4989 (1) on page 274, DOI: 10.11646/zootaxa.4989.1.1, http://zenodo.org/record/4980621
Extension of a suspended soap film: A homogeneous dilatation followed by new film extraction
Creators: name: Seiwert, Jacopo
name: Monloubou, Martin
name: Dollet, Benjamin
name: Cantat, Isabelle
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Liquid foams are widely used in industry for their high effective viscosity, whose local origin is still unclear. This Letter presents new results on the extension of a suspended soap film, in a configuration mimicking the elementary deformation occurring during foam shearing. We evidence a surprising two-step evolution: the film first extends homogeneously, then its extension stops, and a new thicker film is extracted from the meniscus. The second step is independent of the nature of the surfactant solution, whereas the initial extension is only observed for surfactant solutions with negligible dilatational moduli. We predict this complex behavior using a model based on Frankel's theory and on interface rigidification induced by confinement.
Population statistics of intermediate mass black holes in dwarf galaxies using the NewHorizon simulation
Creators: name: Beckmann, R. S.
name: Dubois, Y.
name: Volonteri, M.
name: Dong-Páez, C. A.
name: Trebitsch, M.
name: Devriendt, J.
name: Kaviraj, S.
name: Kimm, T.
name: Peirani, S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: While it is well established that supermassive black holes (SMBHs) co-evolve with their host galaxy, it is currently less clear how lower mass black holes, so-called intermediate mass black holes (IMBHs), evolve within their dwarf galaxy hosts. In this paper, we present results on the evolution of a large sample of IMBHs from the NewHorizon simulation. We show that occupation fractions of IMBHs in dwarf galaxies are at least 50 percent for galaxies with stellar masses down to 1E6 Msun, but BH growth is very limited in dwarf galaxies. In NewHorizon, IMBH growth is somewhat more efficient at high redshift z = 3 but in general IMBH do not grow significantly until their host galaxy leaves the dwarf regime. As a result, NewHorizon under-predicts observed AGN luminosity function and AGN fractions. We show that the difficulties of IMBH to remain attached to the centres of their host galaxies plays an important role in limiting their mass growth, and that this dynamic evolution away from galactic centres becomes stronger at lower redshift.
description: 15 pages, submitted to MNRAS
Conducting Field Trials in Your Practice
Creators: name: Saltman, Roger L.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1991

description: In recent years, there has been a continuing evolution in the professional roles assumed by the practicing dairy veterinarian. Decreasing cow and dairy farm numbers, as well as the increasing needs and expectations of remaining dairymen, have necessitated a broader involvement of the veterinarian in all aspects of the dairy operation. This approach, popularly known as Dairy Production Medicine, has been wholly embraced as a practice "modus operandi" by a growing number of dairy veterinarians and, even more commonly, most dairy practices incorporate at least some aspects of this practice philosophy in their services. While the list of potential services offered in a Dairy Production Medicine practice can be quite lengthy (e.g., ration formulation, performance records analysis, financial records analysis, milking equipment evaluation/mastitis prevention program, heifer raising evaluation, personnel training and management, sick cow treatment, etc.), it is the purpose of this paper to describe (albeit briefly due to time constraints) yet another service that could be included in a comprehensive Dairy Production Medicine program... the conducting of field trials on client dairies.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1991
Volucella proxima Rondani 1857
Creators: name: Sforzi, Alessandra
name: Sommaggio, Daniele
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Bombyliidae
Volucella
Volucella proxima

description: Volucella proxima Rondani, 1857
ORIGINAL DESCRIPTION: 1857: 29 (key), 32 (description).
TYPE LOCALITY: “ in Apennino parmensi [Parmese Apennines (Italy)]”.
TYPE MATERIAL: 2 ♀♀, syntypes (one slightly covered with mold, the other missing right fore-, left mid-, and both hind-legs) (MZUF: Box 1): Volucella Gffr. / proxima Rnd., Apenn. [= Apennines] / 20.
CURRENT STATUS: junior synonym of Volucella bombylans (Linnaeus, 1758) (Peck 1988: 128, Belcari et al. 1995a: 14).
REMARKS: Rondani (1857: 32) described Volucella proxima without specifying the number, the sex or the length of the specimens, from material that he had collected and that he had also received from Bertè. We found two syntypes in this study.
description: Published as part of Sforzi, Alessandra & Sommaggio, Daniele, 2021, Catalog of the Diptera types described by Camillo Rondani, pp. 1-438 in Zootaxa 4989 (1) on page 275, DOI: 10.11646/zootaxa.4989.1.1, http://zenodo.org/record/4980621
Remarks on the interquark potential in the presence of a minimal length
Creators: name: Gaete, Patricio
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate the lowest-order corrections to the static potential for both Yang-Mills theory and gluodynamics in curved space-time, in the presence of a quantum gravity induced minimal length. Our analysis is carried out within stationary perturbation theory. As a consequence, the potential energy is the sum of a Yukawa-like potential and a linear potential for gluodynamics in curved space-time, leading to the confinement of static charges. Interestingly enough, we obtain that the coefficient of the linear term ("string tension") is ultraviolet finite. We should highlight the role played by the new quantum of length in our analysis.
description: 10 pages. Accepted for publication in J. Phys. A
Architecture and Manual for Distributed Network Setup and Maintenance (REFLOW OS)
Creators: name: Minutillo, Ivan
name: Mayel De Borniol
name: Roio, Denis
Publisher: name: Zenodo
Year: 2020
Subjects: Circular Economy, Software, Valueflows, REA

description: This deliverable provides an introduction and a manual to the REFLOW OS, a system designed to operate federated nodes constituting the REFLOW network backend infrastructure. It is targeted for adoption by the Free and Open Source communities at large and consists of a living document that is publicly available online and maintained through the course of the REFLOW project.
Optimal trading with frictions
Creators: name: Wang, Zexin
Publisher: name: Imperial College London
Year: 2023

description: This thesis studies the optimal trading problem with particular attention to frictions, taking alpha signals as given in several practical settings in modern financial markets. Chapter 2 provides a reduced-form model for price impact of market orders. As a scaling limit of the econo-physics propagator model, it has both tractability for optimization and good empirical fit. The nonlinearity in propagator model is explained as a effect of intraday stochasticity of the market activity. Optimal trading strategies are given for the case of stochastic alpha signal and volume signals in closed-form solutions. Moreoever, concrete bounds for the absence of price manipulation strategies are provided. Chapter 3 derives an actionable derivatives hedging strategy with both market and limit orders from the perspective of a central risk book. It is found that limit order is only beneficial for delta-hedging when the gamma of the risky position is negative. Additionally, the interaction between transaction cost, adverse selection and risk aversion can be characterized by a nonlinear PDE that describes the option price. According to empirical analysis, tactical liquidity provision is beneficial for non-competitive market makers for reasonable trading frequencies. Chapter 4 studies the usage of display and nondisplay limit orders for order execution. A price impact model is postulated and the corresponding scheduling algorithm is derived. In the case where nondisplay limit order (hidden order) is used, there is a time which separates the trading horizon into two regimes: the former only uses hidden order, and the latter uses the mixture of limit and hidden orders. The effectiveness and robustness of the algorithm is shown via numerical testing in both simulated data and NASDAQ 100 Index data.
AI-based design methodologies for hot form quench (HFQ®)
Creators: name: Attar, Hamid Reza
Publisher: name: Imperial College London
Year: 2023

description: This thesis aims to develop advanced design methodologies that fully exploit the capabilities of the Hot Form Quench (HFQ®) stamping process in stamping complex geometric features in high-strength aluminium alloy structural components. While previous research has focused on material models for FE simulations, these simulations are not suitable for early-phase design due to their high computational cost and expertise requirements. This project has two main objectives: first, to develop design guidelines for the early-stage design phase; and second, to create a machine learning-based platform that can optimise 3D geometries under hot stamping constraints, for both early and late-stage design. With these methodologies, the aim is to facilitate the incorporation of HFQ capabilities into component geometry design, enabling the full realisation of its benefits. To achieve the objectives of this project, two main efforts were undertaken. Firstly, the analysis of aluminium alloys for stamping deep corners was simplified by identifying the effects of corner geometry and material characteristics on post-form thinning distribution. New equation sets were proposed to model trends and design maps were created to guide component design at early stages. Secondly, a platform was developed to optimise 3D geometries for stamping, using deep learning technologies to incorporate manufacturing capabilities. This platform combined two neural networks: a geometry generator based on Signed Distance Functions (SDFs), and an image-based manufacturability surrogate model. The platform used gradient-based techniques to update the inputs to the geometry generator based on the surrogate model's manufacturability information. The effectiveness of the platform was demonstrated on two geometry classes, Corners and Bulkheads, with five case studies conducted to optimise under post-stamped thinning constraints. Results showed that the platform allowed for free morphing of complex geometries, leading to significant improvements in component quality. The research outcomes represent a significant contribution to the field of technologically advanced manufacturing methods and offer promising avenues for future research. The developed methodologies provide practical solutions for designers to identify optimal component geometries, ensuring manufacturing feasibility and reducing design development time and costs. The potential applications of these methodologies extend to real-world industrial settings and can significantly contribute to the continued advancement of the manufacturing sector.
Completely Dark Matter from Rapid-Turn Multifield Inflation
Creators: name: Kolb, Edward W.
name: Long, Andrew J.
name: McDonough, Evan
name: Payeur, Guillaume
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study cosmological gravitational particle production as applied to "rapid-turn" models of inflation involving two scalar fields. We are interested in the production of massive spin-0 particles that only interact gravitationally and provide a candidate for the dark matter. Specifically, we study two models of rapid-turn multifield inflation, motivated in part by the de Sitter swampland conjecture, that are distinguished by the curvature of field space and the presence or absence of field space 'angular momentum' conservation. We find that one of these models leads to insufficient particle production and cannot explain the observed dark matter relic abundance. The second model is able to explain the origin of spin-0 dark matter via gravitational production, and we identify the relevant region of parameter space that is consistent with measurements of the dark-matter relic abundance, the dark-matter-photon isocurvature perturbations, and the spectrum of curvature perturbations that is probed by cosmological observations. Our work demonstrates the compatibility of the de Sitter swampland conjecture with completely dark matter.
The impact of updated Zr neutron-capture cross sections and new asymptotic giant branch models on our understanding of the s process and the origin of stardust
Creators: name: Lugaro, Maria
name: Tagliente, Giuseppe
name: Karakas, Amanda I.
name: Milazzo, Paolo M.
name: Kaeppeler, Franz
name: Davis, Andrew M.
name: Savina, Michael R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present model predictions for the Zr isotopic ratios produced by slow neutron captures in C-rich asymptotic giant branch (AGB) stars of masses 1.25 to 4 Msun and metallicities Z=0.01 to 0.03, and compare them to data from single meteoritic stardust silicon carbide (SiC) and high-density graphite grains that condensed in the outflows of these stars. We compare predictions produced using the Zr neutron-capture cross section from Bao et al. (2000) and from n_TOF experiments at CERN, and present a new evaluation for the neutron-capture cross section of the unstable isotope 95Zr, the branching point leading to the production of 96Zr. The new cross sections generally presents an improved match with the observational data, except for the 92Zr/94Zr ratios, which are on average still substantially higher than predicted. The 96Zr/94Zr ratios can be explained using our range of initial stellar masses, with the most 96Zr-depleted grains originating from AGB stars of masses 1.8 - 3 Msun, and the others from either lower or higher masses. The 90,91Zr/94Zr variations measured in the grains are well reproduced by the range of stellar metallicities considered here, which is the same needed to cover the Si composition of the grains produced by the chemical evolution of the Galaxy. The 92Zr/94Zr versus 29Si/28Si positive correlation observed in the available data suggests that stellar metallicity rather than rotation plays the major role in covering the 90,91,92Zr/94Zr spread.
description: 35 pages, 5 figures, Accepted for publication on The Astrophysical Journal
ARtwin NGPaas/SolAR wrapper to deploy SolAR components in NGPaaS micro services
Creators: name: Jammal, Bilal Al
name: Pajdla, Tomas
Publisher: name: Zenodo
Year: 2021

description: The current document presents the tools to convert a computer vision pipeline developed with the SolAR framework and running in a stand-alone application into a service ready to deploy on the ARtwin cloud platform based on NGPaaS.
Herd Health for the Beef Cattle Operation!
Creators: name: Richey, Ed
name: Hendry, Ross
name: Cornwell, Scott
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1991

description: To be able to use herd health programs effectively, they must be SIMPLE & FIT the cattle OPERATION. How do we keep herd (animal) health simple? Know what a HEALTHY HERD is! A healthy herd exists when the RESISTANCE LEVEL of the animals remain above the DISEASE CHALLENGE LEVEL.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1991
On Quantum Steering and Wigner Negativity
Creators: name: Walschaers, Mattia
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum correlations and Wigner negativity are two important signatures of nonclassicality in continuous-variable quantum systems. In this work, we investigate how both are intertwined in the context of the conditional generation of Wigner negativity. It was previously shown that when Alice and Bob share a Gaussian state, Bob can perform some measurement on his system to create Wigner negativity on Alice's side if and only if there is Gaussian steering from Alice to Bob. In this work, we attempt to generalise these findings to a much broader class of scenarios on which Alice and Bob share a non-Gaussian state. We show that if Alice can initially steer Bob's system with Wigner-positive measurements, Bob can remotely create Wigner negativity in Alice's subsystem. Even though this shows that quantum steering is sufficient, we also show that quantum correlations are in general not necessary for the conditional generation of Wigner negativity.
description: 16 pages, no figures, comments still welcome
Numerical modelling of impact-generated seismic waves on Mars
Creators: name: Wojcicka, Natalia
Publisher: name: Imperial College London
Year: 2022

description: Seismology is a powerful tool for understanding planetary interiors. On Earth, the seismicity is dominated by tectonic earthquakes, with the atmosphere protecting us from meteorite impacts. However, on Mars, impacts are one of the key processes generating seismic waves. Despite nominal pre-landing estimates of 1–3 impacts detected per Earth year, recognising impacts in the InSight seismic data has proven challenging. This thesis focuses on filling the current gaps in knowledge of impact-generated seismic waves, specifically in the context of the InSight mission, using numerical modelling. Firstly, 13 small impacts onto martian regolith, forming craters 1–30 m, are simulated using iSALE-2D. Their seismic source properties are characterised in terms of impactor properties. In this size range scalar seismic moment increases almost linearly with impact momentum. Seismic efficiencies are ∼10−6, dependent on target material properties and impact velocity. The relatively low seismic efficiency and moment suggest that impact detectability on Mars is lower than previously assumed. Secondly, a momentum-based amplitude-distance scaling relationship is derived based on a dataset containing the artificial impacts on the Moon, the Carancas impact on Earth, and impacts detected by InSight on Mars. Impacts producing craters <30m in diameter are less detectable that pre-landing estimates suggested, whilst larger impacts are more detectable. A subset of marsquakes recorded by InSight is used to derive a new estimate of the impact rate on Mars to be ∼3–5 times higher than the estimates based on orbital observations, but consistent with crater chronology models. Finally, a further suite of iSALE-2D simulations is used to record displacement seismograms generated by impacts and compute their power spectra. The frequency content of the signals decreases with increasing impactor size and velocity, and target porosity. The low-frequency content of seismic waves generated scales well with impactor momentum, but is also sensitive to target material properties.
Emergence of colour by tunable surface wrinkling in one and multi-dimensions
Creators: name: Tan, Soon Nee Annabelle
Publisher: name: Imperial College London
Year: 2023

description: Naturally occurring surface patterns often exhibit micro and nano-scale topography with various functionalities, including displaying optical and photonic effects. One such natural topography that contributes to structural colour is the presence of wrinkles. This thesis explores the controlled wrinkling of bi-layered materials as a powerful patterning method to create bioinspired topographies, and examines their optical properties. The primary method employed in this work involves the use of plasma oxidation of polydimethylsiloxane, combined with mechanical strain, to create wrinkles with varying topographies, ranging from nano to micronscales, by controlling the plasma and strain conditions, as well as the superposition of various generations of wrinkles with prescribed relative angle of orientation. This work firstly investigates the formation of one-dimensional uniaxial wrinkles acting as tunable sinusoidal phase gratings, and quantitatively models the diffractive behaviour of the wrinkled surfaces as a function of strain. Under white light, these wrinkles exhibit iridescent, structural colour on the surfaces that depends on the observation angles and incident light spectrum, and we explored the concept of optical and colour directionality by creating gradient and isotropic wrinkles. In addition to surface diffraction in reflection, we found that the wrinkled materials could act as transmission gratings, leading to multi-faceted structural colour through diffraction combined by total internal reflection. Finally, we investigated the potential and limitations of sequential two-dimensional wrinkling and its structural colour properties. The results of this study provide promising directions for using structural coloured wrinkles in applications such as sensors, displays, and packaging.
Streaks, multiplets, and holes: High-resolution spatio-temporal behavior of Parkfield seismicity
Creators: name: Waldhauser, Felix
name: Ellsworth, W. L.
name: Schaff, David P.
name: Cole, A.
Publisher: name: Columbia University
Year: 2004
Subjects: Plate tectonics

description: Double-difference locations of ∼8000 earthquakes from 1969–2002 on the Parkfield section of the San Andreas Fault reveal detailed fault structures and seismicity that is, although complex, highly organized in both space and time. Distinctive features of the seismicity include: 1) multiple recurrence of earthquakes of the same size at precisely the same location on the fault (multiplets), implying frictional or geometric controls on their location and size; 2) sub-horizontal alignments of hypocenters along the fault plane (streaks), suggestive of rheological transitions within the fault zone and/or stress concentrations between locked and creeping areas; 3) regions devoid of microearthquakes with typical dimensions of 1–5 km (holes), one of which contains the M6 1966 Parkfield earthquake hypocenter. These features represent long lived structures that persist through many cycles of individual events.
Investigations of the torque anomaly in an annular sector. II. Global calculations, electromagnetic case
Creators: name: Milton, Kimball A.
name: Parashar, Prachi
name: Abalo, E. K.
name: Kheirandish, Fardin
name: Kirsten, Klaus
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recently, it was suggested that there was some sort of breakdown of quantum field theory in the presence of boundaries, manifesting itself as a torque anomaly. In particular, Fulling et al. used the finite energy-momentum-stress tensor in the presence of a perfectly conducting wedge, calculated many years ago by Deutsch and Candelas, to compute the torque on one of the wedge boundaries, where the latter was cutoff by integrating the torque density down to minimum lower radius greater than zero. They observed that that torque is not equal to the negative derivative of the energy obtained by integrating the energy density down to the same minimum radius. This motivated a calculation of the torque and energy in an annular sector obtained by the intersection of the wedge with two coaxial cylinders. In a previous paper we showed that for the analogous scalar case, which also exhibited a torque anomaly in the absence of the cylindrical boundaries, the point-split regulated torque and energy indeed exhibit an anomaly, unless the point-splitting is along the axis direction. In any case, because of curvature divergences, no unambiguous finite part can be extracted. However, that ambiguity is linear in the wedge angle; if the condition is imposed that the linear term be removed, the resulting torque and energy is finite, and exhibits no anomaly. In this paper, we demonstrate the same phenomenon takes place for the electromagnetic field, so there is no torque anomaly present here either. This is a nontrivial generalization, since the anomaly found by Fulling et al. is linear for the Dirichlet scalar case, but nonlinear for the conducting electromagnetic case.
description: 9 pages, 3 figures
title: Childhood Home Injuries: A Nursing Student Approach to Preventing Childhood Home Injuries
Creators: name: Sparrow, Jinging
name: Carman, Katherine
name: Kerr, Katelyn
name: Farmer, Renee
Publisher: name: Old Dominion University Libraries
Year: 2010

description: Unintentional injuries are the leading cause of death for children under 14 years of age. Of the unintentional injuries, a significant portion occurs within the home setting. Creating a safe home environment for children has become a focus in current efforts for health promotion and injury prevention. Our objective is to enhance caregivers’ knowledge of home safety thus decreasing the incidence of childhood unintentional injuries. To this end, a series of educational workshops were conducted on poisoning, choking, furniture tip-over, scalds and burns. The material was presented via PowerPoint, videos, posters, handouts, demonstrations and return demonstrations. Verbal pre-and post tests and return demonstration were used to determine the effectiveness of these workshops. The number of participants from each workshop varied from 11 to 14. Pretests revealed that no more than 33% of the participants were able to give correct responses. This percentage increased to 75-100% for the posttests. Conclusions: Comparison of pre and posttest participant responses revealed increased knowledge of common childhood home injuries, prevention strategies, and how to respond should an injury occur. More studies should explore caregivers’ actual implementation of safety knowledge within the home environment.
Volucella spuria Rondani 1865
Creators: name: Sforzi, Alessandra
name: Sommaggio, Daniele
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Bombyliidae
Volucella
Volucella spuria

description: Volucella spuria Rondani, 1865
ORIGINAL DESCRIPTION: 1865a: 128.
TYPE LOCALITY: “ in Apennino [Apennines (Italy)]”.
TYPE MATERIAL: not found in this study.
CURRENT STATUS: junior synonym of Volucella bombylans (Linnaeus, 1758) (Peck 1988: 129).
REMARKS: Rondani (1865a: 128) described Volucella spuria from just the male sex, without specifying either the number or the length of the specimens. We did not locate any type specimens of this nominal species in our study. There are two males (non-types) from the “ Alpi ” [Alps] in the MZUF (Box 1).
description: Published as part of Sforzi, Alessandra & Sommaggio, Daniele, 2021, Catalog of the Diptera types described by Camillo Rondani, pp. 1-438 in Zootaxa 4989 (1) on page 275, DOI: 10.11646/zootaxa.4989.1.1, http://zenodo.org/record/4980621
Enhancement of Pre-weaning Performance
Creators: name: Corah, Larry R.
name: Blanding, Mitch R.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1991

description: When you evaluate the factors influencing profitability in the cow/calf industry, four key points need to be considered. 1. Percent cows weaning calves. 2. Weaning weight of calves. 3. Selling price of calves. 4. Annual cost of maintaining the cow. Obviously, in evaluating weaning weight, it's important to consider both the percent of cows weaning calves and the actual weaning weight. If the goal is to improve weaning weight it cannot be at the expense of a dramatically reducing percent calf crop. The relationship of these two key profit factors is illustrated clearly in Table 1. Thus, in evaluating weaning weight it's important to look at weaning weight as actual pounds of calf weaned per cow in the herd. In the past 20 years, it is very clear that the cow/calf industry has made considerable progress in improving calf weaning weights. The pounds of calf produced per cow nationally, (figures as summarized by Cattle Facts) were 318 lbs calf/cow in 1960, 449 lbs calf/cow in 1980 and current figures in 1989/90 are projecting 528 lbs calf/cow. As we evaluate annual cost of maintaining the cow, very little change has occurred in the industry in the past ten years, but the current focus, such as the National IRM Program, will be addressing production costs and how the industry can improve economic efficiency by lowering annual production costs. The following summary will look at those factors such as management, nutrition and genetics that can influence weaning weight. Seven factors (in varying detail) will be considered: a) growth promotants, b) creep feeding, c) use of medicated minerals, d) internal/external parasite control, e) age at weaning, f) grazing systems/forage quality and g) genetic capacity to grow.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1991
On the Topological Complexity of omega-Languages of Non-Deterministic Petri Nets
Creators: name: Finkel, Olivier
name: Skrzypczak, Michał
Publisher: name: arXiv
Year: 2014
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Computational Complexity (cs.CC)
subject: Formal Languages and Automata Theory (cs.FL)
subject: FOS: Computer and information sciences

description: We show that there are $Σ_3^0$-complete languages of infinite words accepted by non-deterministic Petri nets with Büchi acceptance condition, or equivalently by Büchi blind counter automata. This shows that omega-languages accepted by non-deterministic Petri nets are topologically more complex than those accepted by deterministic Petri nets.
Overcoming fundamental bounds on quantum conference key agreement
Creators: name: Carrara, Giacomo
name: Murta, Gláucia
name: Grasselli, Federico
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Twin-Field Quantum Key Distribution (TF-QKD) enables two distant parties to establish a shared secret key, by interfering weak coherent pulses (WCPs) in an intermediate measuring station. This allows TF-QKD to reach greater distances than traditional QKD schemes and makes it the only scheme capable of beating the repeaterless bound on the bipartite private capacity. Here, we generalize TF-QKD to the multipartite scenario. Specifically, we propose a practical conference key agreement (CKA) protocol that only uses WCPs and linear optics and prove its security with a multiparty decoy-state method. Our protocol allows an arbitrary number of parties to establish a secret conference key by single-photon interference, enabling it to overcome recent bounds on the rate at which conference keys can be established in quantum networks without a repeater.
description: 10 + 26 pages, 5 figures
Contributors
Creators: name: Saif-Ur-Rahman, KM
name: Kothari, Kavita
name: Sadlier, Corinna
name: Moriarty, Frank
name: Movsisyan, Ani
name: Whelan, Sean
name: Taneri, Petek
name: Blair, Matthew
name: Guyatt, Gordon
name: Devane, Declan
Publisher: name: Open Science Framework
Year: 2022

description: Vaccination for coronavirus disease 2019 (COVID-19) has demonstrated a reduced the risk of hospitalisation and death against more recent variants of COVID-19. Some studies suggested improvements in patients with Post-COVID-19 condition (PCC) following vaccination. We systematically explored available evidence on the effect of COVID-19 vaccines for the treatment of people with PCC.
Uniform stabilization of a multilayer Rao-Nakra sandwich beam
Creators: name: Ozer, Ahmet Ozkan
name: Hansen, Scott W.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35R15, 93D15, 35P20

description: We consider the problem of boundary feedback stabilization of a multilayer Rao-Nakra sandwich beam. We show that the eigenfunctions of the decoupled system form a Riesz basis. This allows us to deduce that the decoupled system is exponentially stable. Since the coupling terms are compact, the exponential stability of the coupled system follows from the strong stability of the coupled system, which is proved using a unique continuation result for the overdetermined homogenous system in the case of zero feedback.
description: 16 pages (Final version)
Volucella testacea Rondani 1848
Creators: name: Sforzi, Alessandra
name: Sommaggio, Daniele
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Bombyliidae
Volucella
Volucella testacea

description: Volucella testacea Rondani, 1848
ORIGINAL DESCRIPTION: 1848b: 67.
TYPE LOCALITY: “ Brasile [Brazil]” (Rondani 1848b: 63); [Belem (Pará), Brazil] (Papavero 1973: 343). See Remarks.
TYPE MATERIAL: 1 ♀, syntype (covered with mold) (MZUN: Box Coll. entomol. extra, Fam. Sirfidei - Gen. Aphritis a Phalacromya): Volucella testacea Rnd., Brasile / M. Zool. N° 11211 / ♀.
CURRENT STATUS: junior synonym of Copestylum pallens (Wiedemann, 1830) (Thompson et al. 1976: 81).
REMARKS: Rondani (1848b: 67) described Volucella testacea from just the female sex, without specifying the exact number of specimens, but giving a single measurement of length, from material collected in South America by V. Ghiliani. Costa (1866: 31) listed a single MZUN specimen numbered “614”. We also found one syntype in this study. Although Rondani (1848b: 63) only gave the type locality as “ Brasile ”, Papavero (1973: 343) gave a more accurate type locality based on a note in Spinola (1853) that said all specimens collected by Ghiliani in 1846 were collected in Belem, Pará, Brazil.
description: Published as part of Sforzi, Alessandra & Sommaggio, Daniele, 2021, Catalog of the Diptera types described by Camillo Rondani, pp. 1-438 in Zootaxa 4989 (1) on page 275, DOI: 10.11646/zootaxa.4989.1.1, http://zenodo.org/record/4980621
Nutritional Management of the Late Pregnant Dry Cow with Particular Reference to Dietary CationAnion Difference and Calcium Supplementation
Creators: name: Beede, D. K.
name: Risco, C. A.
name: Donovan, G. A.
name: Wang, C.
name: Archibald, L. F.
name: Sanchez, W. K.
Publisher: name: American Association of Bovine Practitioners  Proceedings of the Annual Conference
Year: 1991

description: All too often the dry pregnant cow is the most neglected creature on the dairy because she is not contributing to current cash flow and profit. It is commonly accepted that the milk yield peak the cow achieves in early lactation, to a large extent, influences her total lactational yield. Proper management of the late pregnant dry cow period should be portrayed to dairy producers as an investment in the future; an investment targeted towards achievement of maximal lactational and reproductive performance in the next lactation. Nutritional management strategies should be implemented during the last 3 to 4 weeks of pregnancy that can help ensure a high return on that investment postpartum. In recent years one such potential strategy, incorporation of the cation-anion difference concept into formulation of diets for cows in late gestation, has been reported and application is occurring in some commercial dairies.
description: American Association of Bovine Practitioners Proceedings of the Annual Conference, 1991