cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Informational Content of Distant-Delivery Futures Contracts
Creators: name: Schnake, Kristin N.
name: Karali, Berna
name: Schnake, Kristin N.
name: Karali, Berna
Publisher: name: Unknown
Year: 2011
Subjects: Agricultural marketing

description: The futures markets have two main goals: price discovery and risk management. Because management decisions often have to be made on a time horizon longer than the time until expiration of the nearby futures contract, the question of distant-delivery futures contracts’ ability to assist in price discovery is important. We focus on soybean and live cattle distantdelivery futures contracts and test for the informational value added to nearby contracts. Two tests for information value provide partially conflicting results due to the different information measures employed. If being able to predict the price trend is sufficient, then we find some information value in distant-delivery futures contracts, while if accurate point estimates of future spot prices are desired the results are negative. Surprisingly, we do not find the expected dichotomy between the storable (soybeans) and non-storable (cattle) commodities.
Electrical conductivity of a hot and dense QGP medium in a magnetic field
Creators: name: Thakur, Lata
name: Srivastava, P. K.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute the electrical conductivity ($ σ_{el} $) in the presence of constant and homogeneous external electromagnetic field for the static quark-gluon plasma (QGP) medium, which is among the important transport coefficients of QGP. We present the derivation of the electrical conductivity by solving the relativistic Boltzmann kinetic equation in the relaxation time approximation in the presence of magnetic field ($ B $). We investigate the dependence of electrical conductivity on the temperature and finite chemical potential in magnetic field. We find that electrical conductivity decreases with the increase in the presence of magnetic field. We observe that $ σ_{el} $ at a nonzero $ B $ remains within the range of the lattice and model estimate at $ B\neq 0 $. Further, we extend our calculation at finite chemical potential.
description: 9 pages, 2 figures
Benchmarking Simulated Robotic Manipulation through a Real World Dataset
Creators: name: Collins, Jack
name: McVicar, Jessie
name: Wedlock, David
name: Brown, Ross
name: Howard, David
name: Leitner, Jürgen
Publisher: name: arXiv
Year: 2019
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: We present a benchmark to facilitate simulated manipulation; an attempt to overcome the obstacles of physical benchmarks through the distribution of a real world, ground truth dataset. Users are given various simulated manipulation tasks with assigned protocols having the objective of replicating the real world results of a recorded dataset. The benchmark comprises of a range of metrics used to characterise the successes of submitted environments whilst providing insight into their deficiencies. We apply our benchmark to two simulation environments, PyBullet and V-Rep, and publish the results. All materials required to benchmark an environment, including protocols and the dataset, can be found at the benchmarks' website https://research.csiro.au/robotics/manipulation-benchmark/.
description: Accepted to the IEEE Robotics and Automation Letters (RA-L) Special Issue: Benchmarking Protocols for Robotic Manipulation (2019)
The QRS Complex Detection Approach
Creators: name: Mayapur, Priyanka
Publisher: name: figshare
Year: 2019
Subjects: subject: 90399 Biomedical Engineering not elsewhere classified
subject: FOS: Medical engineering
subject: 90303 Biomedical Instrumentation
subject: 99902 Engineering Instrumentation
subject: FOS: Other engineering and technologies
subject: 90304 Medical Devices

description: A graphical representation of the electrical signals generated during the heart activity could be termed as Electrocardiogram (ECG). Analysis of ECG by identifying the various features and traits could help us detect the normal and pathological physiology of the heart, thus providing valuable information about the activity of the human heart. Automatic classification of ECG has evolved as an emerging tool in medical diagnosis for effective treatments. In this paper, a real time algorithm for detection of QRS Complex and its duration has been developed. Also, the work proposed in this paper reviews and summarizes the various techniques used by researchers in order to detect and delineate QRS Complex. ECG signals in this work are collected from MIT-BIH database and it has been implemented using MATLAB routine consisting of four different databases formats. The processing of the data was done on the Lead-II ECG signals.
Extraction and Analysis of the P Peak Morphology
Creators: name: Mayapur, Priyanka
Publisher: name: figshare
Year: 2019
Subjects: subject: 90399 Biomedical Engineering not elsewhere classified
subject: FOS: Medical engineering
subject: 90303 Biomedical Instrumentation
subject: 99902 Engineering Instrumentation
subject: FOS: Other engineering and technologies
subject: 99999 Engineering not elsewhere classified
subject: 90304 Medical Devices

description: An Electrocardiogram (ECG) could be defined as a continuous recording of electrical signals of the heart against time. Analysis of ECG by identifying the various features and traits could help us detect the various cardiac peculiarities. Automatic classification of ECG has evolved as an emerging tool in medical diagnosis for effective treatments. The work proposed in this paper has been implemented using MATLAB that presents an algorithm to detect the various features and the possible abnormalities it could represent. ECG signals in this work are collected across various databases. The processing of the data was done on the Lead-II ECG signals. In addition to that, this paper also provides a comparative study of various methods proposed by researchers used to detect and evaluate P peaks thus helping us obtain the results accurately, thus enabling precise calculations of the waveforms.
Stilobezzia (Stilobezzia) diminuta Lane and Forattini
Creators: name: William L. Grogan, Jr.
name: Spinelli
name: Ronderos, María M.
name: Carla
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Ceratopogonidae
Stilobezzia
Stilobezzia diminuta

description: Stilobezzia (Stilobezzia) diminuta Lane and Forattini
 Stilobezzia diminuta Lane and Forattini, 1958: 209 (Panama); Lane and Forattini 1961: 86 (in key); Clastrier 1991: 308 (Dominica; female; figs.).
 Stilobezzia (Stilobezzia) diminuta: Borkent and Spinelli 2000: 54 (in New World catalog south of the USA; distribution); Borkent and Spinelli 2007: 87 (in Neotropical catalog; distribution).
 Discussion. This very small Neotropical predaceous midge was originally described by Lane and Forattini (1958) from Panama. Subsequently, Clastrier (1991) redescribed and illustrated the female from specimens collected on Dominica, and we compared our Guadeloupe specimens with specimens from that island. We provide the first records of this predaceous midge from Guadeloupe.
 New records. Guadeloupe, Basse Terre, Corrosol, 8-IX-2010, MC Thomas & RH Turnbow, Blacklight trap, 5 males. New Guadeloupe record.
description: Published as part of William L. Grogan, Jr., Spinelli, Ronderos, María M. & Carla, 2013, The biting and predaceous midges of Guadeloupe Diptera: Ceratopogonidae). I. Species of the subfamily Ceratopogoninae, pp. 1-21 in Insecta Mundi 2013 (324) on page 10, DOI: 10.5281/zenodo.5178313
Structural studies of bacteriophage T7 and T7 capsids
Creators: name: Ruark, John Edward
Publisher: name: California Institute of Technology
Year: 1978
Subjects: Chemistry

description: The structures of bacteriophage T7 and T7 capsids have been investigated by small-angle X-ray scattering. Phage T7 has a radius of 301 ± 2 Å (excluding the phage tail), and a calculated volume of 1.14 ±.05 x 10^(-16) ml. The radius determined for. T7 phage in solution is about 30% greater than the radius measured from electron micrographs, indicating that considerable shrinkage and distortion occurs during sample preparation for electron microscopy. Thus the volume calculated from X-ray scattering in solution is almost twice that estimated from electron microscope measurements. Capsids that have a phage-like envelope and do not contain DNA were obtained from lysates
of T7-infected E. coli (capsid II) and by separating the capsid component of T7 phage from the phage DNA using temperature shock (capsid IV). These capsids have outer radii of 2[8?]3-289 ± 2 Å and are thus significantly smaller than the envelope of T7 phage. The thickness of the
envelopes of two forms of capsid II are 20 and 23 ± 2 Å. The volume in T7 phage available to package DNA is estimated to be 9.2 ± .4 x 10^(-17) ml or 2.1 times the volume of the B form of T7 DNA.

A T7 precursor capsid (capsid I), believed to be capable of
pulling in DNA, has a smaller outer diameter (261 ± 2 Å) and a thicker envelope (52 ± 4 Å) than capsids II and IV. Capsid I expands when pelleted in the ultracentrifuge, but expansion can be prevented by fixing with glutaraldehyde. A low resolution model for the capsid I envelope
has been developed.
Cambeva horacioi Reis, Frota, Fabrin & da Graca 2019
Creators: name: De Oliveira, Rianne C.
name: Ota, Renata R.
name: Deprá, Gabriel C.
name: Zawadzki, Cláudio H.
name: Pavanelli, Carla S.
name: Da Graça, Weferson J.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Siluriformes
Trichomycteridae
Cambeva
Cambeva horacioi

description: Cambeva horacioi Reis, Frota, Fabrin & da Graça, 2019: 352, fig. 1.
Paratypes: 4 lots, 21 specimens —NUP 15669, 2, 51.8–57.4 mm SL: Brazil, Paraná, Iretama, rio Pinhalzinho, tributary of Rio Muquilão, rio Ivaí basin, upper rio Paraná basin, 24°25’04”S, 52°07’23”W, W.J. da Graça, W.M. Domingues, F.A. Teixeira & R. J. da Graça, 28 Jan 2014. NUP 16016, 3, 39.8–91.7 mm SL: Brazil, Paraná, Peabiru, rio Claro, tributary of rio Ivaí, upper rio Paraná basin, 23°53’9”S, 52°22’4”W, G.C. Deprá & I.S. Penido, 30 Jul 2019. NUP 16059, 10, 64.4–72.2 mm SL: Brazil, Paraná, Iretama, rio Tormentinha, tributary of rio Formoso, rio Ivaí basin, uper rio Paraná basin, 24°23’21”S, 52°09’03”W, W.J. da Graça, W.M. Domingues, F.A. Teixeira & R. J. da Graça, 28 Jan 2014. NUP 16091, 6 (1 c&s, 56.2 mm SL), 35.8–61.7 mm SL: Brazil, Paraná, Prudentópolis, rio Barra Bonita, rio Ivaí basin, upper rio Paraná basin, 25°04’08”S, 51°06’48”W, W.J. da Graça, W.M. Domingues, F.A. Teixeira & R. J. da Graça, 19 January 2014.
description: Published as part of De Oliveira, Rianne C., Ota, Renata R., Deprá, Gabriel C., Zawadzki, Cláudio H., Pavanelli, Carla S. & Da Graça, Weferson J., 2022, Catalog of type specimens of the fish collection of the Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (NUP), Universidade Estadual de Maringá Paraná, Brazil, pp. 1-43 in Zootaxa 5128 (1) on page 29, DOI: 10.11646/zootaxa.5128.1.1, http://zenodo.org/record/6479497
An Approach to Make a Cost-Efficient, Lightweight and Eco-Friendly Heat and Energy Recovery Ventilator (HERV)
Creators: name: Antor, Saifuzzaman
name: Md Kazim Reza Chowdhury
name: Razi, Alim Al
name: Md. Rakibul Hasan Roni
Publisher: name: figshare
Year: 2019
Subjects: subject: 91505 Heat and Mass Transfer Operations
subject: FOS: Other engineering and technologies

description: Nowadays, throughout the whole world household air-conditioning is a matter of importance. As the air-conditioning system being costly, a number of people cannot afford it easily. In this paper, it is tried to find out if it is possible to make an air-conditioning system in a short budget. An existing design of a heat recovery ventilator has been taken and modified with new ideas. The designed heat exchanger, which is also an HVAC system gives up outgoing warm airs’ heat to incoming cold air in winter. During summer cool air blows through the heat exchanger stealing heat from incoming hot air and makes it cool. The main difference between an existing HERV and this one is the structural design. No gasket has been used. On the basis of cost and thermal conductivity, the material of the heat transferring plates is chosen whereas the material of the outside frames was selected according to its’ cost, being lightweight and ease of manufacturing. Geometrical data of plate and channel have been assumed. The number of required heat-conducting plates is determined with the help of spreadsheet program and the general physical model is made then. Experimentally the device is capable of changing around 6°C temperature with less power consumption by a manufacturing cost of USD 34.00 only.
Detection and Processing of the R Peak
Creators: name: Mayapur, Priyanka
Publisher: name: figshare
Year: 2019
Subjects: subject: 90399 Biomedical Engineering not elsewhere classified
subject: FOS: Medical engineering
subject: 90303 Biomedical Instrumentation
subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 99902 Engineering Instrumentation
subject: FOS: Other engineering and technologies
subject: 90304 Medical Devices

description: Electrocardiogram (ECG) is a commonly recorded bio-signal that captures the electrical activity of the heart. Identifying various features and traits could help us detect the normal and pathological physiology of the heart, thus providing valuable information about the activity of the human heart which is a very important step in ECG signal analysis. Computer processing of ECG has evolved as an emerging tool in medical diagnosis for effective treatments. The work proposed in this paper deals with the detection of the R peak and its feature evaluation and reviews and summarizes the various techniques used by researchers in order to detect the same. ECG signals in this work are collected from several places and it has been implemented using MATLAB routine consisting of four different databases formats. The processing of the data was done on the Lead-II ECG signals.
A systematic study of spiral density waves in the accretion discs of Cataclysmic Variables
Creators: name: Ruiz-Carmona, R.
name: Groot, P. J.
name: Steeghs, D. T. H.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Spiral density waves are thought to be excited in the accretion discs of accreting compact objects, including Cataclysmic Variable stars (CVs). Observational evidence has been obtained for a handful of systems in outburst over the last two decades. We present the results of a systematic study searching for spiral density waves in CVs, and report their detection in two of the sixteen observed systems. While most of the systems observed present asymmetric, non-Keplerian accretion discs during outburst, the presence of ordered structures interpreted as spiral density waves is not as ubiquitous as previously anticipated. From a comparison of systems by their system parameters it appears that inclination of the systems may play a major role, favouring the visibility and/or detection of spiral waves in systems seen at high inclination.
description: 42 pages, 12 figures, 5 tables, 5 appendices
Ituglanis goya Datovo, Aquino & Langeani 2016
Creators: name: De Oliveira, Rianne C.
name: Ota, Renata R.
name: Deprá, Gabriel C.
name: Zawadzki, Cláudio H.
name: Pavanelli, Carla S.
name: Da Graça, Weferson J.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Siluriformes
Trichomycteridae
Ituglanis
Ituglanis goya

description: Ituglanis goya Datovo, Aquino & Langeani, 2016: 443, fig. 1.
Paratypes: 1 lot, 4 specimens —NUP 1103, 4, 66.5–81.8 mm SL: Brazil, Goiás, Caldas Novas, córrego Taquaral, rio Corumbá subbasin, rio Paranaíba subbasin, rio Paraná basin, 17°29’28.83”S, 48°23’14.58”W, Nupélia staff, Jul 1996 – Jun 1999.
description: Published as part of De Oliveira, Rianne C., Ota, Renata R., Deprá, Gabriel C., Zawadzki, Cláudio H., Pavanelli, Carla S. & Da Graça, Weferson J., 2022, Catalog of type specimens of the fish collection of the Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (NUP), Universidade Estadual de Maringá Paraná, Brazil, pp. 1-43 in Zootaxa 5128 (1) on page 30, DOI: 10.11646/zootaxa.5128.1.1, http://zenodo.org/record/6479497
Detection and Classification of Heart Defects
Creators: name: Mayapur, Priyanka
Publisher: name: figshare
Year: 2019
Subjects: subject: 90399 Biomedical Engineering not elsewhere classified
subject: FOS: Medical engineering
subject: 90303 Biomedical Instrumentation
subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 99902 Engineering Instrumentation
subject: FOS: Other engineering and technologies
subject: 90304 Medical Devices

description: Heart Defects are immensely threatful to human beings and can cause death. Improvements in diagnosis and treatment tools are welcome by the medical community and have proven to be one of the most useful diagnostic tools for heart patients, one of it to be mentioned would be the Electrocardiogram. Traditional technique of visual analysis of ECG is complicated for doctors, time consuming and requires expertise. Hence, computer based classification and detection of diseases can be immensely useful in diagnostics. This project has been inspired by the need to find an efficient method for ECG signal analysis and classification which is simple yet has good accuracy and less computation time. It deals with the study and analysis of ECG signal processing by means of MATLAB tool effectively for classification and detection of heart defects using Lead-II Configuration. Study of ECG signal includes reading and plotting of the ECG signal, acquisition of real time ECG data, ECG signal filtering and processing, feature extraction and detection of certain parameters, decoding, comparison, classification of the required features. In this thesis, we first find out the characteristics to classify a normal ECG and then pass any random signal to check whether the features or the values determined fall within the specified range with the ones characterized to be a normal ECG. If it does, then we classify it as normal ECG else we classify it as an abnormal ECG using Lead-II Configuration.
Recency predicts bursts in the evolution of author citations
Creators: name: Silva, Filipi Nascimento
name: Tandon, Aditya
name: Amancio, Diego Raphael
name: Flammini, Alessandro
name: Menczer, Filippo
name: Milojević, Staša
name: Fortunato, Santo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Digital Libraries (cs.DL)
subject: Computation and Language (cs.CL)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: The citations process for scientific papers has been studied extensively. But while the citations accrued by authors are the sum of the citations of their papers, translating the dynamics of citation accumulation from the paper to the author level is not trivial. Here we conduct a systematic study of the evolution of author citations, and in particular their bursty dynamics. We find empirical evidence of a correlation between the number of citations most recently accrued by an author and the number of citations they receive in the future. Using a simple model where the probability for an author to receive new citations depends only on the number of citations collected in the previous 12-24 months, we are able to reproduce both the citation and burst size distributions of authors across multiple decades.
description: 12 pages, 7 figures
Simulating a White Dwarf-dominated Galactic Halo
Creators: name: Brook, Chris B.
name: Kawata, Daisuke
name: Gibson, Brad K.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Observational evidence has suggested the possibility of a Galactic halo which is dominated by white dwarfs (WDs). While debate continues concerning the interpretation of this evidence, it is clear that an initial mass function (IMF) biased heavily toward WD precursors (1 < m/Msol < 8), at least in the early Universe, would be necessary in generating such a halo. Within the framework of homogeneous, closed-box models of Galaxy formation, such biased IMFs lead to an unavoidable overproduction of carbon and nitrogen relative to oxygen (as measured against the abundance patterns in the oldest stars of the Milky Way). Using a three-dimensional Tree N-body smoothed particle hydrodynamics code, we study the dynamics and chemical evolution of a galaxy with different IMFs. Both invariant and metallicity-dependent IMFs are considered. Our variable IMF model invokes a WD-precursor-dominated IMF for metallicities less than 5% solar (primarily the Galactic halo), and the canonical Salpeter IMF otherwise (primarily the disk). Halo WD density distributions and C,N/O abundance patterns are presented. While Galactic haloes comprised of ~5% (by mass) of WDs are not supported by our simulations, mass fractions of ~1-2% cannot be ruled out. This conclusion is consistent with the present-day observational constraints.
description: accepted for publication in MNRAS
On the nodal distance between two Keplerian trajectories with a common focus
Creators: name: Gronchi, Giovanni Federico
name: Niederman, Laurent
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study the possible values of the nodal distance $δ_{\rm nod}$ between two non-coplanar Keplerian trajectories ${\cal A}, {\cal A}'$ with a common focus. In particular, given ${\cal A}'$ and assuming it is bounded, we compute optimal lower and upper bounds for $δ_{\rm nod}$ as functions of a selected pair of orbital elements of ${\cal A}$, when the other elements vary. This work arises in the attempt to extend to the elliptic case the optimal estimates for the orbit distance given in (Gronchi and Valsecchi 2013) in case of a circular trajectory ${\cal A}'$. These estimates are relevant to understand the observability of celestial bodies moving (approximately) along ${\cal A}$ when the observer trajectory is (close to) ${\cal A}'$.
description: 34 pages, 34 figures
Investigation of coriolis mixing in benzene
Creators: name: Runnels, John Hulett
Publisher: name: California Institute of Technology
Year: 1983
Subjects: Chemistry

description: An explanation for some recent observations in the
electronic absorption spectrum of benzene by Schlag and
coworkers  is proposed. Several vibrational lines of the
S_0 to S_1 transition have been studied by these authors with the Doppler—free, two—photon technique developed earlier. The resolution of this technique is so high that individual Δ J=0, Δ K=0 rotational lines in the Q—branch of a given vibrational transition may be seen in the electronic absorption spectrum. A major progression in the two—photon spectrum is the 14^1_0 1^n_0  progression. It was found that the 14^1_0 1^0_0 and 14^1_0 1^1_0 transitions had well—resolved rotationalstructure, but the 14^1_0 1^2_0 transition had reduced, not well
resolved rotational structure--except for the prominent K=0
lines for small to medium values of J. This suggested to
us Coriolis mixing. The model presented here utilizes a
suggestion of Riedle et al.The Coriolis coupling to
neighboring vibrational states is followed by a rapid
radiationless depletion of these states, consistent with
the decreased fluorescence yield observed by Wunsch et al.
Estimates are made of the density of states of the various
symmetries; these estimates are then used to estimate the
extent of the relevant Coriolis mixing. The model results
in a large decrease in intensity of non—zero K lines
relative to the K=0 lines for the 14^1_0 1^2_0  transition, but not for the 14^1_0 1^0_0 and 14^1_0 1^1_0 transitions, in agreement with the experimental observations, making  a few assumptions discussed below, but without the use of adjustable parameters. Predictions are then made for the rotational structure of other strong transitions in the two—photon spectrum of benzene.
Trichomycterus diabolus Bockmann, Casatti & de Pinna 2004
Creators: name: De Oliveira, Rianne C.
name: Ota, Renata R.
name: Deprá, Gabriel C.
name: Zawadzki, Cláudio H.
name: Pavanelli, Carla S.
name: Da Graça, Weferson J.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Siluriformes
Trichomycteridae
Trichomycterus
Trichomycterus diabolus

description: Trichomycterus diabolus Bockmann, Casatti & de Pinna, 2004: 228, fig. 1.
Paratypes: 1 lot, 10 specimens —NUP 3277, 10, 29.3–55.8 mm SL: Brazil, São Paulo, Teodoro Sampaio, córrego São Carlos, rio Paranapanema basin, Morro do Diabo State Park, 22°35’28.0”S, 52°14’38.1”W, L. Casatti, H.F. Santos, K.M. Ferreira & F. Langeani, 18 Dec 2000.
Remarks: Valid as Cambeva diabola (Bockmann, Casatti & de Pinna 2004) (see Katz et al., 2018).
description: Published as part of De Oliveira, Rianne C., Ota, Renata R., Deprá, Gabriel C., Zawadzki, Cláudio H., Pavanelli, Carla S. & Da Graça, Weferson J., 2022, Catalog of type specimens of the fish collection of the Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (NUP), Universidade Estadual de Maringá Paraná, Brazil, pp. 1-43 in Zootaxa 5128 (1) on page 30, DOI: 10.11646/zootaxa.5128.1.1, http://zenodo.org/record/6479497
[I.]  Carbon monoxide reduction by sixteen electron d-zero tantalum complexes [II.]  Acrylonitrile cyclodimerization by tris(triphenylphosphine) tetramethylene Ni(II)
Creators: name: Berg, Beckie E.
Publisher: name: California Institute of Technology
Year: 1979
Subjects: Chemistry

description: [Part I]  The sixteen electon, d-zero complexes Ta(COT)Me_3 and (η^5-C_5Me_5)Ta(C_3H_5)Me_3 were prepared and treated with carbon monoxide. The prep of Ta(COT) Me_3 gave irreproducibly small yields and upon treatment with CO paramagnetic material was observed. The prep of (η^5-C_5Me_5)Ta(C_3H_5)Me_3 resulted in yellow crystals in a red oil and these could not be separated.
(η ^5C_5Me_5)Ta(C_3H_4Me)Me_3 was then made. This complex decomposes to the trimethylene methane species (η^5-C_5Me_5)Ta(C_3H_3Me)Me_2, and upon treatment with CO gave an unknown white solid product.

[Part II] Tris(triphenylphoshine) tetramethylene Ni(II) was made and treated with acrylonitrile.  1, 2 dicyanocyclobutane was produced
in a cis:trans mixture of 45:55 and was isolated by preparative GC. The product was rarely observed and the reaction of nickel metallocycle with acrylonitrile was not catalyzed by acid, base, or Ni(O).
Quantum states of neutrons in the gravitational field and limits for non-Newtonian interaction in the range between 1 micron and 10 microns
Creators: name: Abele, Hartmut
name: Baessler, Stefan
name: Westphal, Alexander
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum states in the Earth's gravitational field can be observed, when ultra-cold neutrons fall under gravity. In an experiment at the Institut Laue-Langevin in Grenoble, neutrons are reflected and trapped in a gravitational cavity above a horizontal mirror. The population of the ground state and the lowest states follows, step by step, the quantum mechanical prediction. An efficient neutron absorber removes the higher, unwanted states. The quantum states probe Newtonian gravity on the micrometer scale and we place limits for gravity-like forces in the range between 1 micron and 10 microns.
description: Aspects of Quantum Gravity, ed. by C. Laemmerzahl, Springer, Berlin, Heidelberg 2003, (Lecture notes in physics)
Stilobezzia (Stilobezzia) thomsenae , Wirth 1953
Creators: name: William L. Grogan, Jr.
name: Spinelli
name: Ronderos, María M.
name: Carla
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Ceratopogonidae
Stilobezzia
Stilobezzia thomsenae

description: Stilobezzia (Stilobezzia) thomsenae Wirth
 Stilobezzia (Stilobezzia) thomsenae Wirth, 1953: 83 (Florida); Borkent and Spinelli 2000: 55 (in New World catalog south of the USA; distribution); Borkent and Spinelli 2007: 87 (in Neotropical Catalog; distribution); Grogan et al. 2010: 41 (new Florida records; comparison with S. bulla Thomsen).
 Stilobezzia scutata Lane and Forrattini, 1961: 92 (Panama).
 Discussion. Wirth’s (1953) original description of this species was based on two specimens from Florida, the holotype male from Collier Co., and a female from Citrus Co. about which he stated “…is provisionally referred to S. (S.) thomsenae, since it resembles the male in coloration, although it may prove to be a dark specimen of S. (S.) bulla.” Under “diagnostic characters” for S. thomsenae, Wirth (1953) noted that it was “Very closely related to, and almost indistinguishable from bulla Thomsen, except for the very characteristic male genitalia.” This species is also known from Panama and Yucatan, Mexico (Borkent and Spinelli 2007). Grogan et al. (2010) reported on additional records of this species from Florida and new records from Jamaica in the FSCA and noted that both sexes of S. thomsenae lack a fringe of macrotrichia on their anterior wing margin that is present in males and females of their very similar related Nearctic species, S. bulla Thomsen. We provide the first records of this primarily Neotropical predaceous midge from Guadeloupe.
 New records. Guadeloupe, Basse Terre, Bois Malher, 9-IX-2010, MC Thomas & RH Turnbow, Blacklight trap, 4 males, 5 females; same data except Corrosol, 8-IX-2010, 5 males, 4 females; same data except Pigeon, 9-IX-2010, 3 males, 1 female; same data except NE Pigeon (16.14404° N, 61.74977° W), 18-V-2012, R. H. Turnbow, BL trap, 1 male, 1 female; same data except Trace des Cretes (D-14), 22-V-2012, 2 males, 2 females. New Guadeloupe record .
description: Published as part of William L. Grogan, Jr., Spinelli, Ronderos, María M. & Carla, 2013, The biting and predaceous midges of Guadeloupe Diptera: Ceratopogonidae). I. Species of the subfamily Ceratopogoninae, pp. 1-21 in Insecta Mundi 2013 (324) on pages 10-11, DOI: 10.5281/zenodo.5178313
Nucleon-to-Resonance Form Factors at Large Photon Virtualities
Creators: name: Segovia, J.
name: Chen, C.
name: Cui, Z. -F.
name: Lu, Y.
name: Roberts, C. D.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We present a unified description of elastic and transition form factors involving the nucleon and its resonances; in particular, the $N(1440)$, $Δ(1232)$ and $Δ(1600)$. We compare predictions made using a framework built upon a Faddeev equation kernel and interaction vertices that possess QCD-kindred momentum dependence with results obtained using a confining, symmetry-preserving treatment of a vector$\,\otimes\,$vector contact-interaction in a widely-used leading-order (rainbow-ladder) truncation of QCD's Dyson-Schwinger equations. This comparison explains that the contact-interaction framework produces hard form factors, curtails some quark orbital angular momentum correlations within a baryon, and suppresses two-loop diagrams in the elastic and transition electromagnetic currents. Such defects are rectified in our QCD-kindred framework and, by contrasting the results obtained for the same observables in both theoretical schemes, shows those objects which are most sensitive to the momentum dependence of elementary quantities in QCD.
description: 10 pages, 6 figures, contribution to the proceedings of the 15th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon, MENU-2019. June 2-7, Pittsburgh, Pennsylvania, USA. arXiv admin note: text overlap with arXiv:1801.07251, arXiv:1602.02768
Model Dependence of the Properties of S11 Baryon Resonances
Creators: name: Kiswandhi, Alvin
name: Capstick, Simon
name: Dytman, Steven
Publisher: name: arXiv
Year: 2003
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The properties of baryon resonances are extracted from a complicated process of fitting sophisticated, empirical models to data. The reliability of this process comes from the quality of data and the robustness of the models employed. With the large of amount of data coming from recent experiments, this is an excellent time for a study of the model dependence of this extraction process. A test case is chosen where many theoretical details of the model are required, the S11 partial wave. The properties of the two lowest N* resonances in this partial wave are determined using various models of the resonant and non-resonant amplitudes.
description: 24 pages, 10 figures; revised fits with error estimates, expanded comparison between CMB and K-matrix models
New probability distributions in astrophysics: I. The truncated generalized gamma
Creators: name: Zaninetti, Lorenzo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The gamma function is a good approximation to the luminosity function of astrophysical objects, and a truncated gamma distribution would permit a more rigorous analysis. This paper examines the generalized gamma distribution (GG) and then introduces the scale and the new double truncation. The magnitude version of the truncated GG distribution with scale is adopted in order to fit the luminosity function (LF) for galaxies or quasars. The new truncated GG LF is applied to the five bands of SDSS galaxies, to the 2dF QSO Redshift Survey in the range of redshifts between 0.3 and 0.5, and to the COSMOS QSOs in the range of redshifts between 3.7 and 4.7. The average absolute magnitude versus redshifts for SDSS galaxies and QSOs of 2dF was modeled adopting a redshift dependence for the lower and upper absolute magnitude of the new truncated GG LF.
description: Figures 9 , pages 15
Trichomycterus igobi Wosiacki & de Pinna 2008
Creators: name: De Oliveira, Rianne C.
name: Ota, Renata R.
name: Deprá, Gabriel C.
name: Zawadzki, Cláudio H.
name: Pavanelli, Carla S.
name: Da Graça, Weferson J.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Siluriformes
Trichomycteridae
Trichomycterus
Trichomycterus igobi

description: Trichomycterus igobi Wosiacki & de Pinna, 2008: 19, fig 1.
Paratypes: 1 lot, 2 specimens —NUP 4007, 2, 62.0– 66.3 mm SL: Brazil, Paraná, Candói, rio do Sobradinho (tributary to rio Jordão), NUP staff, 8 Apr 2005.
Remarks: Valid as Cambeva igobi (Wosiacki & de Pinna 2008) (see Katz et al., 2018).
description: Published as part of De Oliveira, Rianne C., Ota, Renata R., Deprá, Gabriel C., Zawadzki, Cláudio H., Pavanelli, Carla S. & Da Graça, Weferson J., 2022, Catalog of type specimens of the fish collection of the Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (NUP), Universidade Estadual de Maringá Paraná, Brazil, pp. 1-43 in Zootaxa 5128 (1) on page 31, DOI: 10.11646/zootaxa.5128.1.1, http://zenodo.org/record/6479497
Scalar perturbation spectra from warm inflation
Creators: name: Hall, Lisa M. H.
name: Moss, Ian G.
name: Berera, Arjun
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a numerical integration of the cosmological scalar perturbation equations in warm inflation. The initial conditions are provided by a discussion of the thermal fluctuations of an inflaton field and thermal radiation using a combination of thermal field theory and thermodynamics. The perturbation equations include the effects of a damping coefficient $Γ$ and a thermodynamic potential $V$. We give an analytic expression for the spectral index of scalar fluctuations in terms of a new slow-roll parameter constructed from $Γ$. A series of toy models, inspired by spontaneous symmetry breaking and a known form of the damping coefficient, lead to a spectrum with $n_s>1$ on large scales and $n_s<1$ on small scales.
description: 12 pages, 5 figures, RevTeX 4, revised with extra figures
Classification of Arrhythmia from ECG Signals using MATLAB
Creators: name: Mayapur, Priyanka
Publisher: name: figshare
Year: 2019
Subjects: subject: 90303 Biomedical Instrumentation
subject: FOS: Medical engineering
subject: 90399 Biomedical Engineering not elsewhere classified
subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 99902 Engineering Instrumentation
subject: FOS: Other engineering and technologies
subject: 90304 Medical Devices

description: An Electrocardiogram (ECG) is defined as a test that is performed on the heart to detect any abnormalities in the cardiac cycle. Automatic classification of ECG has evolved as an emerging tool in medical diagnosis for effective treatments. The work proposed in this paper has been implemented using MATLAB. In this paper, we have proposed an efficient method to classify the ECG into normal and abnormal as well as classify the various abnormalities. To brief it, after the collection and filtering the ECG signal, morphological and dynamic features from the signal were obtained which was followed by two step classification method based on the traits and characteristic evaluation. ECG signals in this work are collected from MIT-BIH, AHA, ESC, UCI databases. In addition to this, this paper also provides a comparative study of various methods proposed via different techniques. The proposed technique used helped us process, analyze and classify the ECG signals with an accuracy of 97% and with good convenience.
Casimir Effect, Achucarro-Ortiz Black Hole and the Cosmological Constant
Creators: name: Vagenas, Elias C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We treat the two-dimensional Achucarro-Ortiz black hole (also known as (1+1) dilatonic black hole) as a Casimir-type system. The stress tensor of a massless scalar field satisfying Dirichlet boundary conditions on two one-dimensional "walls" ("Dirichlet walls") is explicitly calculated in three different vacua. Without employing known regularization techniques, the expression in each vacuum for the stress tensor is reached by using the Wald's axioms. Finally, within this asymptotically non-flat gravitational background, it is shown that the equilibrium of the configurations, obtained by setting Casimir force to zero, is controlled by the cosmological constant.
description: 20 pages, LaTeX, minor corrections, comments and clarifications added, version to appear in Phys. Rev. D
Pairing properties of the double-β emitter 116Cd
Creators: name: Sharp, D. K.
name: Freeman, S. J.
name: Cropper, B. D.
name: Davies, P. J.
name: Faestermann, T.
name: Hatfield, T. M.
name: Hertenberger, R.
name: Hughes, S. J. F.
name: MacGregor, P. T.
name: Wirth, H. -F.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The pairing properties of the neutrinoless double-$β$ decay candidate $^{116}$Cd have been investigated. Measurements of the two-neutron removal reactions on isotopes of $^{114,116}$Cd have been made in order to identify 0$^+$ strength in the residual nuclei up to $\approx$3 MeV. No significant $L=0$ strength has been found in excited states indicating that the Bardeen-Cooper-Schrieffer (BCS) approximation is a reasonable basis to describe the neutrons in the ground state. This approximation avoids complications in calculations of double-$β$ decay matrix elements that use the quasiparticle random-phase approximation (QRPA) techniques. However this is not the case for the protons, where pair vibrations are prevalent and the BCS approximation is no longer valid, complicating the use of traditional QRPA techniques for this system as a whole.
description: 5 pages, 3 figures, spreadsheet of supplemental material
Monte Carlo Radiation Transport Modelling of the Current-Biased Kinetic Inductance Detector
Creators: name: Malins, Alex
name: Machida, Masahiko
name: Vu, The Dang
name: Aizawa, Kazuya
name: Ishida, Takekazu
Publisher: name: arXiv
Year: 2019
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Radiation transport simulations were used to analyse neutron imaging with the current-biased kinetic inductance detector (CB-KID). The PHITS Monte Carlo code was applied for simulating neutron, $^{4}$He, $^{7}$Li, photon and electron transport, $^{10}$B(n,$α$)$^{7}$Li reactions, and energy deposition by particles within CB-KID. Slight blurring in simulated CB-KID images originated $^{4}$He and $^{7}$Li ions spreading out in random directions from the $^{10}$B conversion layer in the detector prior to causing signals in the $X$ and $Y$ superconducting Nb nanowire meander lines. 478 keV prompt gamma rays emitted by $^{7}$Li nuclei from neutron-$^{10}$B reactions had negligible contribution to the simulated CB-KID images. Simulated neutron images of $^{10}$B dot arrays indicate that sub 10 $μ$m resolution imaging should be feasible with the current CB-KID design. The effect of the geometrical structure of CB-KID on the intrinsic detection efficiency was calculated from the simulations. An analytical equation was then developed to approximate this contribution to the detection efficiency. Detection efficiencies calculated in this study are upper bounds for the reality as the effects of detector temperature, the bias current, signal processing and dead-time losses were not taken into account. The modelling strategies employed in this study could be used to evaluate modifications to the CB-KID design prior to actual fabrication and testing, conveying a time and cost saving.
description: 23 pages, 7 figures, Author Accepted Manuscript (8th Nov 2019), Nuclear Instruments and Methods in Physics Research A
Critérios para avaliação da presença de estratégias empreendedoras e de inovação: um estudo em instituições financeiras brasileiras
Creators: name: Firmino, Thaís Teles
name: Silva, Allan Gustavo Freire Da
name: JANDESON DANTAS DA SILVA
name: Nobrega, Kleber Cavalcanti
Publisher: name: figshare
Year: 2019
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: O objetivo da pesquisa foi verificar a presença de estratégias empreendedoras e/ou de inovação nas dez maiores instituições financeiras brasileiras, em termos de ativos totais, de acordo com o Banco Central. Para tanto, criou-se um modelo de cinco critérios, baseados na literatura, que subsidiou a análise de conteúdo realizada por meio dos relatórios administrativos e notas explicativas das instituições selecionadas. Identificou-se que as organizações têm procurado, de maneira unânime, incorporar a tecnologia aos seus processos, produtos e/ou serviços. O compromisso com a transformação digital é um fator transversal aos critérios elencados, uma vez que denota a atuação em oportunidades empreendedoras, sustenta os frameworks empreendedor e inovador, também viabilizando novas ideias, processos, produtos e/ou serviços e a criação de valor a todos os stakeholders. Este artigo contribui ao campo devido à escassez de estudos teórico-empíricos com este tema, além da proposição de critérios para avaliação da presença dessas estratégias, pavimentando caminhos para a pesquisa empírica e argumentações conceituais. Também por sua utilização nesta mesma pesquisa, articulando as abordagens de modo a lançar luz sobre as práticas das maiores instituições financeiras brasileiras.
Trichomycterus papilliferus Wosiacki & Garavello 2004
Creators: name: De Oliveira, Rianne C.
name: Ota, Renata R.
name: Deprá, Gabriel C.
name: Zawadzki, Cláudio H.
name: Pavanelli, Carla S.
name: Da Graça, Weferson J.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Siluriformes
Trichomycteridae
Trichomycterus
Trichomycterus papilliferus

description: Trichomycterus papilliferus Wosiacki & Garavello, 2004: 6, fig. 3.
Paratypes: 1 lot, 1 specimen —NUP 1615, 1, 94.4 mm SL: Brazil, Paraná, Foz do Jordão, Jordão reservoir, rio Jordão near at its mouth, tributary of rio Iguaçu, rio Paraná Basin, 25°45’S, 52°10’W, Nupélia & Copel staffs, Aug 1995.
Remarks: Valid as Cambeva papillifera (Wosiacki & Garavello 2004) (see Costa et al., 2021).
description: Published as part of De Oliveira, Rianne C., Ota, Renata R., Deprá, Gabriel C., Zawadzki, Cláudio H., Pavanelli, Carla S. & Da Graça, Weferson J., 2022, Catalog of type specimens of the fish collection of the Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (NUP), Universidade Estadual de Maringá Paraná, Brazil, pp. 1-43 in Zootaxa 5128 (1) on page 31, DOI: 10.11646/zootaxa.5128.1.1, http://zenodo.org/record/6479497
The proper motion and energy distribution of the isolated neutron star RX J0720.4-3125
Creators: name: Motch, C.
name: Zavlin, V. E.
name: Haberl, F.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: ESO 4m class telescope and VLT deep imaging of the isolated neutron star RX J0720.4-3125 reveals a proper motion of mu = 97 +/-12 mas/yr and a blue U-B color index. We show that a neutron star atmosphere model modified to account for a limited amount of hydrogen on the star's surface can well represent both the optical and X-ray data without invoking any additional components. The large proper motion almost completely excludes the possibility that accretion from interstellar medium is the powering mechanism of the X-ray emission. It also implies that the proposed spin down is entirely due to magnetic dipole losses. RX J0720.4-3125 is thus a very likely middle aged cooling neutron star. Its overall properties are quite similar to some of the long period radio pulsars recently discovered, giving further support to the idea that RX J0720.4-3125 may be a pulsar whose narrow radio beam does not cross the Earth.
description: Submitted to Astronomy and Astrophysics, 8 pages 5 figures
Transport of impact ejecta from Mars to its moons as a means to reveal Martian history
Creators: name: Hyodo, Ryuki
name: Kurosawa, Kosuke
name: Genda, Hidenori
name: Usui, Tomohiro
name: Fujita, Kazuhisa
Publisher: name: arXiv
Year: 2019
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Throughout the history of the solar system, Mars has experienced continuous asteroidal impacts. These impacts have produced impact-generated Mars ejecta, and a fraction of this debris is delivered to Earth as Martian meteorites. Another fraction of the ejecta is delivered to the moons of Mars, Phobos and Deimos. Here, we studied the amount and condition of recent delivery of impact ejecta from Mars to its moons. Using state-of-the-art numerical approaches, we report, for the first time, that materials delivered from Mars to its moons are physically and chemically different from the Martian meteorites, which are all igneous rocks with a limited range of ages. We show that Mars ejecta mixed in the regolith of its moons potentially covers all its geological eras and consists of all types of rocks, from sedimentary to igneous. A Martian moons sample-return mission will bring such materials back to Earth, and the samples will provide a wealth of "time-resolved" geochemical information about the evolution of Martian surface environments.
description: 9 pages, 3 figures, published in Scientific Reports