cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Essential self-adjointness of powers of first-order differential operators on non-compact manifolds with low-regularity metrics
Creators: name: Bandara, Lashi
name: Saratchandran, Hemanth
Publisher: name: arXiv
Year: 2016
Subjects: subject: Functional Analysis (math.FA)
subject: Analysis of PDEs (math.AP)
subject: Differential Geometry (math.DG)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 58J60, 47F05, 46E40, 58J05

description: We consider first-order differential operators with locally bounded measurable coefficients on vector bundles with measurable coefficient metrics. Under a mild set of assumptions, we demonstrate the equivalence between the essential self-adjointness of such operators to a negligible boundary property. When the operator possesses higher regularity coefficients, we show that higher powers are essentially self-adjoint if and only if this condition is satisfied. In the case that the low-regularity Riemannian metric induces a complete length space, we demonstrate essential self-adjointness of the operator and its higher powers up to the regularity of its coefficients. We also present applications to Dirac operators on Dirac bundles when the metric is non-smooth.
(200772) Maria Mary Langley
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Effects of Electromagnetic and Hydraulic Forming Processes on the Microstructure of the Material
Creators: name: Bach, F. W.
name: Kleiner, M.
name: Risch, D.
name: Walden, L.
Publisher: name: Institut für Umformtechnik - Technische Universität Dortmund
Year: 2004
Subjects: subject: bulge test
subject: dislocation
subject: electromagnetic sheet metal forming
subject: microstructure
subject: 620
subject: 670

description: Over the past few years, various papers have been published in the field of high speed forming processes. The focus was mainly on the technological aspects of metal forming, however. Therefore, the present contribution puts an emphasis on transmission electron microscopy analyses. The present research work describes the effects of the two forming processes upon the aluminum microstructure and their influence on the material properties. The objective is to characterise the micro processes determining the plastic deformation with both forming velocities the electromagnetic high speed forming process with strain rates of 10,000 s^(-1) and the bulge test, having deformation rates of less than 0.1 s^(-1) as a quasistatic process. In this article sheet metals out of technical pure aluminum 99.5% with a thickness of 1 mm were investigated. To this end, sample specimens were taken from manufactured workpieces along the radius at various distances from the center. Because of the similarity of the forming paths, two places on the specimens manufactured at different forming rates were evaluated and compared to each other: immediately next to the blankholder and from the area of maximum strain. Metallographic tests of the structures, the sheet thickness, and the micro hardness distribution of the initial state and the formed sheet metals were executed in advance.
Intercalation of diafenthiuron insecticide with calf thymus DNA: spectroscopic and molecular dynamics analysis
Creators: name: Ponkarpagam, S.
name: Vennila, K. N.
name: Elango, Kuppanagounder P.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
classificationCode: 29999
subject: Physical Sciences not elsewhere classified
subject: Medicine
classificationCode: 59999
subject: Environmental Sciences not elsewhere classified
classificationCode: 39999
subject: Chemical Sciences not elsewhere classified
classificationCode: 69999
subject: Biological Sciences not elsewhere classified
subject: Cancer

description: A series of biophysical experiments like UV-Vis, fluorescence, circular dichroism (CD), competitive displacement assays, voltammetric studies, viscosity measurements and denaturation effect and metadynamics simulation studies were performed to establish the mode of binding of diafenthiuron (DF) insecticide with calf thymus DNA (CT-DNA). Analysis of absorption and fluorescence spectra in Tris-HCl buffer of pH 7.4 indicates the formation of a complex between DF and CT-DNA and the binding constant of which is in the order of 104 M−1. Competitive displacement assay with ethidium bromide (EB) and Hoechst 33258 suggests that the most probable mode of binding of DF with CT-DNA may be via intercalation mode. The results of other experiments such as CD spectral studies, viscosity measurements and the effect of denaturation agent urea support the intercalation of DF with CT-DNA. Thermodynamic parameters (ΔHo, ΔSo and ΔGo) reveal that hydrogen bonds (H-bonds) or van der Waals (vdW) force is the main binding force in the spontaneous interaction between DF and CT-DNA. Molecular dynamics (MD) simulation studies confirmed the intercalation of DF into the base pairs of CT-DNA. Communicated by Ramaswamy H. Sarma
title: Mapping the evidence of plant-based alternative foods: A systematic literature review protocol on nutritional, health, and environmental impacts
Creators: name: Nájera Espinosa, Sarah
name: Pastorino, Silvia
name: Scheelbeek, Pauline
Publisher: name: London School of Hygiene & Tropical Medicine
Year: 2022

description: Diets, especially in the Global North, are causing both health and environmental challenges. The promotion of shifts from current diets to diets rich in plant-sourced foods and low in animal-sourced is commonly regarded as a suitable and evidence-based strategy to improve nutritional health and reduce adverse impacts on the environment, mainly in high-income and food-secure settings. Plant-based alternative foods (PBAF) - products specifically designed to mimic and/or replace animal foods such as dairy and meat – could facilitate such shifts. Demand and supply of PBAF have increased rapidly over the past decade; however, research on the environmental footprints, health effects and nutrient content is in its infancy. Given their exponential growth in the food market, more comprehensive evidence on the health and environmental aspects of PBAF is urgently needed for informed decision-making. This systematic literature review will follow the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Three key concepts will be combined in the search strategy: Alternative foods, health, and environmental impacts. The literature will synthesize the evidence of both peer-reviewed studies and grey literature assessing the health, nutrient and environmental impact of PBAF sold in high-income countries. Five literature databases will be searched to identify peer-reviewed studies published over the last 5 years. Evidence will be mapped and analysed based on the comparability of results and reported outcomes.
TeV- and MeV-physics out of an $SU_{L}(2)\times U_{R}(1)_{J} \times U(1)_{K}$ model
Creators: name: Neves, M. J.
name: Helaÿel-Neto, J. A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The standard electroweak interaction is here re-assessed to accommodate two different situations in Particle Physics. The first one is a $Z'$-model at the TeV-scale physics. The second one tackles the recent discussion of a possible fifth force mediated by a $17$-MeV X-boson associated with an electron-positron emission in the transition of an excited 8-Beryllium to its ground state. The anomaly-free model that provides these two scenarios is based on an $SU_{L}(2) \times U_{R}(1)_{J} \times U(1)_{K}$-symmetry. It yields a new massive neutral boson, an exotic massive neutral fermion, right-neutrinos and an additional neutral Higgs particle, which stems from a supplementary Higgs field, introduced along with the usual Higgs doublet responsible for the electroweak breaking and the masses of $W^{\pm}$ and $Z^{0}$. Yukawa interactions of the two scalars generate the masses of the Standard Model leptons, neutrinos and a new exotic fermion of the model. The vacuum expectation values of the Higgses fix up two independent energy scales. One of them is the well-confirmed electroweak scale, $246 \, \mbox{GeV}$, whereas the other one is set up by adopting an experimental estimate for the $Z'$-mass.
description: 11 pages, 2 figures
title: Electro-magnetic Tooling for Metal Forming and Powder Compaction
title: Numerical Simulation
titleType: AlternativeTitle
Creators: name: Kladas, A. G.
name: Koumoutsos, A. K.
name: Mamalis, A. G.
name: Manolakos, D. E.
Publisher: name: Institut für Umformtechnik - Technische Universität Dortmund
Year: 2004
Subjects: subject: electro-magnetic forming
subject: tool analysis
subject: tube compression
subject: 620
subject: 670

description: The multipurpose FE Code ANSYS is employed to simulate an electro-magnetic forming process. A complicated compression coil with a ferromagnetic outer screen and a stepped field shaper is considered. Details on FE model building are thoroughly discussed. The calculated parameters are the magnetic flux density around the conductors as well as the Lorentz forces developed in both the field shaper and the workpiece. A simplified analysis of the workpiece deformation characteristics is also provided. An equivalent circuit method is employed in order to validate the results from the electro-magnetic FE model. Results from both analyses are in good agreement, denoting that the FE results are valid from an engineering point of view.
Atalaia, Círios e Caramelos
Creators: name: Sousa, Aníbal de
Publisher: name: figshare
Year: 2023
Subjects: Social and cultural anthropology

description: Comunicação apresentada ao Colóquio de Folclore do Distrito de Setúbal, promovido pelo Rancho Etnográfico de Danças e Cantares da Barra Cheia, em 30-1-1993. Esta comunicação foi publicada de forma fracionada nos nºs 141, 142 e 143, de julho, agosto e setembro de 1993, respetivamente, do jornal Linha do Sul. O texto original foi objeto de um tratamento ligeiro em Setembro de 2017
(200769) Charles Wrightson
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Minidisks in Binary Black Hole Accretion
Creators: name: Ryan, Geoffrey
name: MacFadyen, Andrew
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Newtonian simulations have demonstrated that accretion onto binary black holes produces accretion disks around each black hole ("minidisks"), fed by gas streams flowing through the circumbinary cavity from the surrounding circumbinary disk. We study the dynamics and radiation of an individual black hole minidisk using two-dimensional hydrodynamical simulations performed with a new general relativistic version of the moving mesh code Disco. We introduce a co-moving energy variable which enables highly accurate integration of these high Mach number flows. Tidally induced spiral shock waves are excited in the disk and propagate through the ISCO providing a Reynolds stress which causes efficient accretion by purely hydrodynamic means and producing a radiative signature brighter in hard X-rays than the Novikov-Thorne model. Disk cooling is provided by a local blackbody prescription that allows the disk to evolve self-consistently to a temperature profile where hydrodynamic heating is balanced by radiative cooling. We find that the spiral shock structure is in agreement with the relativistic dispersion relation for tightly-wound linear waves. We measure the shock induced dissipation and find outward angular momentum transport corresponding to an effective alpha parameter of order 0.01. We perform ray-tracing image calculations from the simulations to produce theoretical minidisk spectra and viewing angle dependent images for comparison with observations.
description: Accepted for publication in The Astronomical Journal, 16 pages, 19 figures
PORE-LEVEL FLUID MIGRATION IN RESERVOIR SANDSTONES
Creators: name: MOSS, ADAM KEITH
Publisher: name: University of Plymouth
Year: 1994

description: The void space properties of a set of gas reservoir sandstone samples have been measured. The properties include porosity, absolute gas permeability, electrical resistivity formation factor and tortuosity. The mineralogy of each sandstone was determined by scanning electron microscopy and energy dispersive x-ray analysis. Mercury intrusion and extrusion data have been measured for most of the sandstone samples. A new procedure for measuring the degree and range of void size correlations within resin-filled sandstones has been developed. Image analysis of backscattered electron micrographs of these samples supplies void size and positional information. A "semi-variogram" study of void size and coordinate data ascertains the degree and range of void size correlation. Measurable correlation has been found in two sandstone samples, but was absent from four others. Diffusion coefficients of methane, iso-butane and n-butane through dry sandstones have been measured using an adaptation of a non-steady state method, using a redesigned apparatus. A repeatability and error analysis of diffusion coefficient measurement has also been performed. A correlation between diffusion coefficients, absolute permeability, porosity and formation factor was detected for sandstones containing little clay. The diffusion coefficients measured for clay affected sandstones did not correlate with any petrophysical properties of these samples. A computer model capable of simulating porous media has been previously developed. It consists of a 10x10x10 network of cubic pores and cylindrical throats, and simulates die mercury intrusion curve. The void size distribution is modified until both simulated and experimental curves closely match. New void size distribution input and curve fit algorithms have been developed to increase the speed and accuracy of die simulations and a new modelling procedure allows the modelling of samples with void size correlation. The model is capable of simulating porosity, permeability, tortuosity and mercury extrusion. Each of the reservoir sandstones has been modelled and their characteristic properties simulated. Successful simulations were obtained for all relatively clay-free reservoir sandstones. Clay affected sandstone simulations were less successful due to the high complexity of these samples. A study into formation damage witiiin reservoir sandstones was also undertaken. The effect of colloidal particulate void space penetration is measured and simulated.
(200770) Martha Ann Hunter
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Structural, vibrational spectroscopy, molecular docking, DFT studies and antibacterial activity of (E)-N1-(3-chlorobenzylidene)benzene-1,4-diamine
Creators: name: Hajam, Towseef Ahmad
name: H., Saleem
name: Ahamed, F. M. Mashood
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
classificationCode: 39999
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
classificationCode: 69999
subject: Biological Sciences not elsewhere classified

description: In this work, (E)-N1-(3-chlorobenzylidene)benzene-1,4-diamine (CBD) compound was synthesized with good yield. The spectral studies were recorded by FT-IR, FT-Raman, NMR and UV-Vis to determine structural parameters. The geometrical parameters were optimized using DFT calculations at 6-311++G(d,p) basis set. The calculated structural parameters of the molecule were in line with the experimental data. The molecular orbitals of the compound were investigated through highest occupied molecular orbital (HOMO), lowest unoccupied molecular orbital (LUMO) analysis. The hyper conjugative interaction energy E(2) along with donor, acceptor electron densities (EDs) were determined by natural bond orbital (NBO) analysis. The molecular electrostatic potential (MEP), mulliken atomic charges, non-linear optical (NLO) properties and potential energy surface (PES) scan were also calculated. The 1H and 13C NMR chemical shifts calculated using Gauge invariant atomic orbital (GIAO) method were compared with the experimental NMR chemical shifts. Thermogravimetry (TG) and Differential Scanning Calorimetry (DSC) were carried out to characterise the thermal behaviour and stability of CBD molecule. In addition, PreADMET tool was also used to estimate ADME and Toxicity of CBD compound. The compound screened against four pathogens two gram positive and two gram negative had shown good anti-bacterial behaviour. The molecular docking studies executed against anti-bacterial target topoisomerase DNA gyrase enzyme (2XCT) emphasized good binding behaviour over the standard drug. Communicated by Ramaswamy H. Sarma
Benjamin Straumann, Roman Law in the State of Nature. The Classical Foundations of Hugo Grotius’ Natural Law
Creators: name: Di Tursi, Laura
Publisher: name: Ciceroniana on line
Year: 2022

description: Recensione
description: Ciceroniana on line, V. 6 N. 2 (2022): “Da Cicerone al Digesto: interazioni fra oratoria giudiziaria, retorica e diritto tra l’età repubblicana e imperiale” Atti del convegno a cura di Andrea BALBO
Influence of Different Material Models on the Result of Numerical High Speed Cutting Simulations
Creators: name: Halle, T.
name: Meyer, L. W.
Publisher: name: Institut für Umformtechnik - Technische Universität Dortmund
Year: 2004
Subjects: subject: material
subject: modelling
subject: simulation
subject: 620
subject: 670

description: Extreme conditions for the workpiece and the tool can occur in high speed cutting processes. Temperatures above 1000 °C at very high strains over 3 and strain rates near 105 1/s are not unusual. In the first part of this paper an overview about the well known and new developed testing methods for these extreme conditions is given. For numerical simulations it is necessary to formulate closed material models which include strain, strain rate, and the temperature. In the second part some well known material models are presented and compared. Furthermore, advantages and disadvantages are named. The flow stress behaviour of two types of steel (1.1191, 1.2311) as a function of strain rate and temperature is presented. A Johnson-Cook and a Zerilli-Armstrong model is used for the comparative numerical simulations of an orthogonal cutting process. To indicate the process of chip segmentation, a damage model is often used. The influence of various damage models with different damage parameters and failure modes is shown. The calculated cutting forces and the shape of the chips are compared with results determined at a quickstop cutting device with integrated force measurement. Additionally, the calculated chip formation is compared with the measured shape by means of highspeed photography. The temperatures, forces, and chip shape for both used models are presented and the influence of different material models are evaluated and named.
Expectation values of single-particle operators in the random phase approximation ground state
Creators: name: Kosov, Daniel S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We developed a method for computing matrix elements of single-particle operators in the correlated random phase approximation ground state. Working with the explicit random phase approximation ground state wavefunction, we derived practically useful and simple expression for a molecular property in terms of random phase approximation amplitudes. The theory is illustrated by the calculation of molecular dipole moments for a set of representative molecules.
description: Accepted to J.Chem.Phys
Numerical Simulation of Pulsed Electromagnetic Stamping Processes
Creators: name: Bessonov, N.
name: Golovashchenko, S.
Publisher: name: Institut für Umformtechnik - Technische Universität Dortmund
Year: 2004
Subjects: subject: forming
subject: high strain-rate
subject: sheet
subject: 620
subject: 670

description: In earlier published papers simulation of electromagnetic forming (EMF) was often conducted assuming that pulsed electromagnetic load can be replaced by the pulse of mechanical force calculating its parameters similar to R-L-C electric circuit. However, in many practical cases, parameters of this circuit are variable during the process because of the displacement of the blank and from one operation to another due to the accumulation of heat in the coil. The distribution of electromagnetic forces is also non-uniform and may affect the quality of the part being stamped. In our opinion, the accuracy of the simulation of EMF can be significantly improved if the formulation of the problem includes Maxwell equations of the electromagnetic field propagation, equations of dynamic elastic-plastic deformation, and heat transfer equations all coupled together. In addition, this approach may provide knowledge of electromagnetic coil deformation, which was investigated earlier with significant simplifications. The complexity of the problem is defined by mutual dependence of all three physical processes (electromagnetic field propagation, dynamic elastic-plastic deformation, and heat transfer) and variable boundary conditions. The propagation of the electromagnetic field is defined by quasi-stationary Maxwell equations transformed in Lagrangian form. The dynamics of elastic-plastic deformation is modeled using the solid mechanics equation of motion, the modified theory of elastic plastic flow, and the Von Mises yield criterion. The energy conservation law is employed for the simulation of heat transfer, which is important to define the appropriate stamping rate without overheating the coil. The developed methodology is illustrated by 2D examples of cone formation from sheet using a flat coil and the conical die and 2D plane strain sheet formation by direct propagation of the electric current through the metal bar, serving as a coil, and through the deformed sheet.
High Quality Stepped-Impedance Resonators Suitable for Circuit-QED Measurement of Superconducting Artificial Atoms
Creators: name: Jin, Yirong
name: Deng, Hui
name: Guo, Xueyi
name: Zheng, Yarui
name: Huang, Keqiang
name: Ning, Luhui
name: Zheng, Dongning
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: High quality factor coplanar resonators are critical elements in superconducting quantum circuits. We describe the design, fabrication and measurement of stepped impedance resonators (SIRs), which are more compact in size than commonly used uniform impedance resonators (UIRs). With properly chosen impedance ratio, SIRs can be 27% shorter than UIRs. As a result, the area occupied by SIRs can be reduced. Two kinds of designs containing both SIRs and UIRs are fabricated and measured. The power dependence of the extracted internal quality factors (Qi) for all the resonators showed that SIRs and UIRs have comparable performance with Qi around half-million under single-photon level excitation. These results indicate that SIRs could be used in superconducting quantum circuits. The reduced size of SIRs may also lead to reduced overall circuit area and increased integration level.
description: 4 pages, 6 figures, IEEE ASC2016
Quantum Eraser for Three-Slit Interference
Creators: name: Shah, Naveed Ahmad
name: Qureshi, Tabish
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is well known that in a two-slit interference experiment, if the information, on which of the two paths the particle followed, is stored in a quantum path detector, the interference is destroyed. However, in a setup where this path information is "erased", the interference can reappear. Such a setup is known as a quantum eraser. A generalization of quantum eraser to a three-slit interference is theoretically analyzed. It is shown that three complementary interference patterns can arise out of the quantum erasing process.
description: Published version
To probe the activation mechanism of the Delta opioid receptor by an agonist ADL5859 started from inactive conformation using molecular dynamic simulations
Creators: name: Dean, Emily
name: Kumar, Vikash
name: McConnell, Ashleigh
name: Pagnoncelli, Iohana B.
name: Wu, Chun
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
classificationCode: 29999
subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
classificationCode: 39999
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
classificationCode: 69999
subject: Biological Sciences not elsewhere classified
subject: Computational Biology

description: The δ-opioid receptor (DOR) is a critical pharmaceutical target for pain management. Although the high-resolution crystal structures of the DOR with both agonist and antagonist have recently been solved, the activation mechanism remains to be elusive. In this study, a DOR agonist ADL5859 was docked to the inactive DOR and multiple microsecond molecular dynamic (MD) simulations were conducted to probe the activation mechanism. While the receptor with the crystal ligand (i.e. antagonist naltrindole) maintained the inactive conformation in all three independent simulations, the receptor with ADL5859 was adopting toward the active conformation in three out of six independent simulations. Major conformational differences were located on transmembrane (TM) 5 and 6, as well as intracellular loop 3. Compared to naltrindole, ADL5859 exhibited high conformational flexibility and strong interaction with the transmission switch. The putative key residues (W274, D95, V267, L139, V263, M142, T260, R146, R258 and others) involving in the activation pathway were identified through the conventional molecular switch analysis and a pairwise distance analysis, which provides a short list for experimental mutagenesis study. These insights will facilitate further development of therapeutic agents targeting the DOR. Communicated by Ramaswamy H. Sarma
Role of Intensive and Extensive Variables in a Soup of Firms in Economy to Address Long Run Prices and Aggregate Data
Creators: name: Hosseiny, Ali
name: Gallegati, Mauro
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Finance (q-fin.GN)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: We review the production function and the hypothesis of equilibrium in the neoclassical framework. We notify that in a soup of sectors in economy, while capital and labor resemble extensive variables, wage and rate of return on capital act as intensive variables. As a result, Baumol and Bowen's statement of equal wages is inevitable from the thermodynamics point of view. We try to see how aggregation can be performed concerning the extensive variables in a soup of firms. We provide a toy model to perform aggregation for production and the labor income as extensive quantities in a neoclassical framework.
Neutron stars in Scalar-Tensor-Vector Gravity
Creators: name: Armengol, Federico G. Lopez
name: Romero, Gustavo E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Scalar-Tensor-Vector Gravity (STVG), also referred as MOdified Gravity (MOG), is an alternative theory of the gravitational interaction. Its weak field approximation has been successfully used to described Solar System observations, galaxy rotation curves, dynamics of clusters of galaxies, and cosmological data, without the imposition of dark components. The theory was formulated by John Moffat in 2006. In this work, we derive matter-sourced solutions of STVG and construct neutron star models. We aim at exploring STVG predictions about stellar structure in the strong gravity regime. Specifically, we represent spacetime with a static, spherically symmetric manifold, and model the stellar matter content with a perfect fluid energy-momentum tensor. We then derive the modified Tolman-Oppenheimer-Volkoff equation in STVG and integrate it for different equations of state. We find that STVG allows heavier neutron stars than General Relativity (GR). Maximum masses depend on a normalized parameter that quantifies the deviation from GR. The theory exhibits unusual predictions for extreme values of this parameter. We conclude that STVG admits suitable spherically symmetric solutions with matter sources, relevant for stellar structure. Since recent determinations of neutron stars masses violate some GR predictions, STVG appears as a viable candidate for a new gravity theory.
description: The final publication is available at Springer via http://dx.doi.org/10.1007/s10714-017-2184-0
(200765) Samuel Freer
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Stress-Strain Curves of Sheet Material in High-Rate Forming Processes
Creators: name: Golovashchenko, S.
name: Mamutov, V.
Publisher: name: Institut für Umformtechnik - Technische Universität Dortmund
Year: 2004
Subjects: subject: forming
subject: high strain-rate
subject: sheet
subject: 620
subject: 670

description: Electromagnetic forming technologies are based on high-voltage discharge of capacitors through the conductive coil. Two methods of testing and the results of dynamic coefficient kd for aluminum alloys, copper, brass, steel, and some other materials are presented. The first method is based on expansion of rings machined from tubular blanks, which are designated for further stamping operations. The displacement of the ring was registered by using the light shading method. Parameters of the discharge electric current running through the electromagnetic coil were measured with a Rogowski gauge. The acceleration stage of the ring expansion process was used for more accurate calibration of the inductive gauge defining the parameters of electromagnetic pressure. Registering the kinematics of the ring during the inertial stage of the deformation process provided the information on dynamic behavior of the studied material. The second method employed in this paper for dynamic yield stress measurement was based on transverse pulsed loading of a sheet sample clamped by its ends. Shapes of the samples during their deformation were photographed using a high-speed camera. The specifics of the sheet sample deformation under the pulsed transverse load are the following: the sample has near-trapezoidal shape; the middle part of the sample has almost the same velocity ??0 through the whole process; the angle between two inclined parts of the sample and the horizontal middle area ?? has minor variation during the deformation process. In some cases, hybrid stamping processes including conventional forming on the press and final shape calibrating with pulsed forming technique require additional information about the influence of the static preliminary deformation of the sheet on dynamic yield stress. Experiments with different levels of material prestrain were conducted for this purpose.
On the algebraic stringy Euler number
Creators: name: Batyrev, Victor
name: Gagliardi, Giuliano
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14E30 (Primary) 14E15, 14E18, 14L30, 14M27 (Secondary)

description: We are interested in stringy invariants of singular projective algebraic varieties satisfying a strict monotonicity with respect to elementary birational modifications in the Mori program. We conjecture that the algebraic stringy Euler number is one of such invariants. In the present paper, we prove this conjecture for varieties having an action of a connected algebraic group G and admitting equivariant desingularizations with only finitely many G-orbits. In particular, we prove our conjecture for arbitrary projective spherical varieties.
description: 13 pages
(200767) Agnes Maretta Wrightson
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Evaluating the accuracy of the AMBER protein force fields in modeling dihydrofolate reductase structures: misbalance in the conformational arrangements of the flexible loop domains
Creators: name: Love, Olivia
name: Lima, Maria Carolina Pacheco
name: Clark, Casey
name: Cornillie, Sean
name: Roalstad, Shelly
name: Cheatham, Thomas E.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
classificationCode: 29999
subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Biotechnology
classificationCode: 69999
subject: Biological Sciences not elsewhere classified
classificationCode: 80699
subject: Information Systems not elsewhere classified
subject: Cancer
classificationCode: 110309
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Protein flexible loop regions were once thought to be simple linkers between other more functional secondary structural elements. However, as it becomes clearer that these loop domains are critical players in a plethora of biological processes, accurate conformational sampling of 3D loop structures is vital to the advancement of drug design techniques and the overall growth of knowledge surrounding molecular systems. While experimental techniques provide a wealth of structural information, the resolution of flexible loop domains is sometimes low or entirely absent due to their complex and dynamic nature. This highlights an opportunity for de novo structure prediction using in silico methods with molecular dynamics (MDs). This study evaluates some of the AMBER protein force field’s (ffs) ability to accurately model dihydrofolate reductase (DHFR) conformations, a protein complex characterized by specific arrangements and interactions of multiple flexible loops whose conformations are determined by the presence or absence of bound ligands and cofactors. Although the AMBER ffs, including ff19SB, studied well model most protein structures with rich secondary structure, results obtained here suggest the inability to significantly sample the expected DHFR loop–loop conformations – of the six distinct protein-ligand systems simulated, a majority lacked consistent stabilization of experimentally derived metrics definitive the three enzyme conformations. Although under-sampling and the chosen ff parameter combinations could be the cause, given past successes with these MD approaches for many protein systems, this suggests a potential misbalance in available ff parameters required to accurately predict the structure of multiple flexible loop regions present in proteins. Communicated by Ramaswamy H. Sarma
GREEN SYNTHESIS OF AU NANOPARTICLES USING ALLIUM CEPA L. (ONION) AND EVALUATION OF THEIR BIOLOGICAL ACTIVITIES
Creators: name: Akanksha Bansal1, Susan Verghese P.2, Rahul Singh3
Publisher: name: Zenodo
Year: 2025

description: Green technology is increasingly important, especially for synthesizing gold nanoparticles (AuNPs), which are valued for their optical properties, stability, cost-effectiveness, and environmental friendliness. This study aimed to synthesize AuNPs using onion extract, rich in bioactive compounds like flavonoids and enzymes, which act as natural reducing agents. The successful synthesis of AuNPs was indicated by a color change from green to dark brown and confirmed using UV-Vis spectrophotometry, FTIR, SEM, TEM, and Zeta potential analysis. The biosynthesized AuNPs exhibited significant anticancer activity against DLA cells and antimicrobial activity against pathogens such as Escherichia coli, Klebsiella pneumoniae, and Staphylococcus aureus.
Evaluation of the dual effects of antiviral drugs on SARS-CoV-2 receptors and the ACE2 receptor using structure-based virtual screening and molecular dynamics simulation
Creators: name: Jahantigh, Hamid Reza
name: Ahmadi, Nahid
name: Shahbazi, Behzad
name: Lovreglio, Piero
name: Habibi, Mehri
name: Stufano, Angela
name: Gouklani, Hamed
name: Ahmadi, Khadijeh
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Pharmacology
subject: Biotechnology
classificationCode: 39999
subject: Chemical Sciences not elsewhere classified
classificationCode: 69999
subject: Biological Sciences not elsewhere classified
classificationCode: 80699
subject: Information Systems not elsewhere classified
subject: Cancer
classificationCode: 110309
subject: Infectious Diseases
subject: FOS: Health sciences

description: The use of US FDA-approved drugs is preferred due to the need for lower costs and less time. In in silico medicine, repurposing is a quick and accurate way to screen US FDA-approved medications to find a therapeutic option for COVID-19 infection. Dual inhibitors possess dual inhibitory activity, which may be due to the inhibition of two different enzymes, and are considered better than combination therapy from the developmental and clinical perspectives. In this study, a molecular docking simulation was performed to identify the interactions of antiviral drugs with the critical residues in the binding site of the main SARS-CoV-2 protease, spike glycoprotein, and papain-like protease receptors compared to the angiotensin-converting enzyme-related carboxypeptidase (ACE2) receptor of host cells. Each of the receptors was docked with 70 US FDA-approved antiviral drugs using AutoDock Vina. A molecular dynamics (MD) simulation study was also used for 100 ns to confirm the stability behaviour of the ligand receptor complexes. Among the drugs that had the strongest interaction with the SARS-CoV-2 main protease, spike glycoprotein and papain-like protease receptors, and host cell ACE2 receptors, Simeprevir, Maraviroc and Saquinavir had dual inhibitory effects. The MD simulation study confirmed the stability of the strongest interactions between the antiviral drugs and the main protease, ACE2, spike glycoprotein, and papain-like protease receptors to 100 ns. However the results of MMPBSA analysis showed that the bond between Saquinavir and the ACE2 receptor was weak. Simeprevir and Maraviroc drugs had acceptable binding energies with dual receptors, especially the Simeprevir. Communicated by Ramaswamy H. Sarma
On the index conjecture in zero-sum theory: singular case
Creators: name: Ge, Fan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: Let $S=(a_1)\cdots(a_k)$ be a minimal zero-sum sequence over a finite cyclic group $G$. The index conjecture states that if $k=4$ and $\gcd(|G|,6)=1$, then $S$ has index $1$. In this paper we prove that if $S$ is singular then the index of $S$ is $1$.
description: to appear in Int. J. Number Theory; may differ slightly from the final version
Additional file 4 of A multi-phase approach for developing a conceptual model for human resources for health observatory (HRHO) toward integrating data and evidence: a case study of Iran
Creators: name: Najafpour, Zhila
name: Arab, Mohammad
name: Shayanfard, Kamran
Publisher: name: figshare
Year: 2023
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences

description: Additional file 4. Required information in the model.
Eulichas milleri Ivie & Jach 2002
Creators: name: Hájek, Ji Ř Í
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Eulichadidae
Eulichas
Eulichas milleri

description: The Eulichas milleri species complex
The species complex contains two species of very similar habitus from Laos and Vietnam, which differs from other species of the funebris group with the parameres very wide and complex: the medio-ventral parameral process attenuating posteriorly to a short or long acute hook; the subbasal parameral hook is well developed, but the subapical parameral hook is absent.
description: Published as part of Hájek, Ji Ř Í, 2007, Revision of the genus Eulichas Jacobson, 1913 (Coleoptera: Eulichadidae) I. Introduction, morphology of adults, key to subgenera and species groups, and taxonomy of E. funebris species group, pp. 1-35 in Zootaxa 1620 on page 28, DOI: 10.5281/zenodo.179178
Biomechanical Modelling of Musical Performance: A Case Study of the Guitar
Creators: name: Costalonga, Leandro
Publisher: name: University of Plymouth
Year: 2009

description: Merged with duplicate record 10026.1/2517 on 07.20.2017 by CS (TIS)
description: Computer-generated musical performances are often criticised for being unable to match the expressivity found in performances by humans. Much research has been conducted in the past two decades in order to create computer technology able to perform a given piece music as expressively as humans, largely without success. Two approaches have been often adopted to research into modelling expressive music performance on computers. The first focuses on sound; that is, on modelling patterns of deviations between a recorded human performance and the music score. The second focuses on modelling the cognitive processes involved in a musical performance. Both approaches are valid and can complement each other. In this thesis we propose a third complementary approach, focusing on the guitar, which concerns the physical manipulation of the instrument by the performer: a biomechanical approach. The essence of this thesis is a study on capturing, analyzing and modelling information about motor and biomechanical processes of guitar performance. The focus is on speed, precision, and force of a guitarist's left-hand. The overarching questions behind our study are: 1) Do unintentional actions originating from motor and biomechanical functions during musical performance contribute a material "human feel" to the performance? 2) Would it be possible determine and quantify such unintentional actions? 3) Would it be possible to model and embed such information in a computer system? The contributionst o knowledgep ursued in this thesis include: a) An unprecedented study of guitar mechanics, ergonomics, and playability; b) A detailed study of how the human body performs actions when playing the guitar; c) A methodologyt o formally record quantifiable data about such actionsin performance; d) An approach to model such information, and e) A demonstration of how the above knowledge can be embeddedin a system for music performance.
Merits and Qualms of Work Fluctuations in Classical Fluctuation Theorems
Creators: name: Deng, Jiawen
name: Tan, Alvis Mazon
name: Hanggi, Peter
name: Gong, Jiangbin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Work is one of the most basic notion in statistical mechanics, with work fluctuation theorems being one central topic in nanoscale thermodynamics. With Hamiltonian chaos commonly thought to provide a foundation for classical statistical mechanics, here we present general salient results regarding how (classical) Hamiltonian chaos generically impacts on nonequilibrium work fluctuations. For isolated chaotic systems prepared with a microcanonical distribution, work fluctuations are minimized and vanish altogether in adiabatic work protocols. For isolated chaotic systems prepared at an initial canonical distribution at inverse temperature $β$, work fluctuations depicted by the variance of $e^{-βW}$ are also minimized by adiabatic work protocols. This general result indicates that if the variance of $e^{-βW}$ diverges for an adiabatic work protocol, then it diverges for all nonadiabatic work protocols sharing the same initial and final Hamiltonians. How such divergence explicitly impacts on the efficiency of using the Jarzynski's equality to simulate free energy differences is studied in a Sinai model. Our general insights shall boost studies in nanoscale thermodynamics and are of fundamental importance in designing useful work protocols.
description: 11 pages, 5 figures, close to published version