cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The effect of alternate row sowing method on the establishment of legumes
Creators: name: Dong, Y
Publisher: name: University Of Tasmania
Year: 2023

description: The objective of this study is to increase the establishment of legumes in pasture swards so that they have a better survival rate in a sward. Therefore, this study hypothesizes that better establishment of legumes can be achieved through alternate row sowing method than mixed sowing method. In theory, this method minimizes the inter-specific competition because there is extra space between legume seeds and grass seeds. So, legumes could have their own space which is beneficial for their growth. Above ground, more space means grasses are unlikely to shade out legumes in early establishment phase. This extra space would lead to better legume growth at the establishment phase. Below ground, with more spaces provided, the unique tap roots system of legumes does not need to fight with grass roots for micronutrients and macronutrients. Hence, legumes can forage nutrients with less competition from grasses.
Dil ve Konuşma Terapisinin İnterdisipliner ve Multidisipliner Alandaki Farkındalığı Çalışması
Creators: name: Kurt, Murat Berke
name: Bayır, Berke
Publisher: name: Zenodo
Year: 2019
Subjects: speech
language
multidisciplinary
interdisciplinary

description: Dil ve Konuşma Terapisinin İnterdisipliner ve Multidisipliner Alandaki Farkındalığı Çalışması
Feature-prompting Protocols for Data-driven Health Estimation and Lifetime Prediction of Lithium Metal Batteries
Creators: name: Ma, Wenting
Publisher: name: Stanford Digital Repository
Year: 2023
Subjects: subject: Li-metal battery
subject: health estimation
subject: lifetime prediction
subject: Machine learning

description: Lithium metal batteries (LMB) represent one of the most promising battery technologies due to their high energy density. However, the commercial adoption of LMBs has been hindered by their limited lifespan and safety concerns resulting from lithium metal’s high electrochemical reactivity. Effective health estimation and lifetime prediction could enable timely maintenance actions before failure and a rapid LMB development iteration. In this work, we first propose novel diagnostic test and aging cycling protocols that enable the tracking of LMB degradation from voltage-current measurements through extracting internal resistance, relaxation voltage, and charging impedance. With these features, we present an automatic data-driven aging modeling framework for LMBs. Validation over test cells demonstrate accurate health estimation performance using only one cycle of voltage and current data, and reliable lifetime prediction using cells’ early-life data. The proposed model provides explanatory insights tailored to LMBs, and does not require additional internal state sensors.
The study of highly strained cyclopropyl adamantane compounds with emphasis on their radical copolymerizations with oxygen
Creators: name: Schmidt, Justin Orvel
Publisher: name: University of British Columbia
Year: 2011

description: The synthesis of a new type of highly strained cyclopropyl group between the two remaining bridgehead positions in 1,3-dimethyl- adamantane was accomplished by an internal coupling reaction involving the removal of two bromines with sodium-potassium alloy in ether. The product, 5,7-dimethyltetracyclo [3.3.1.1⁵⁷.0 ¹³] decane, commonly named 3,5-dimethyl-l,3-dehydroadamantane (DMDHA), formed a polymer on heating the pure material to a temperature above 90°C. The polymer's properties were studied by X-ray analysis and differential scanning calorimetry. The previously reported parent compound to DHDMA, tetracyclo-5 7 13 [3.3.1.1⁵⁷.0 ¹³] decane, commonly named 1,3-dehydroadamantane (DHA), was synthesized and studied to determine the properties of the cyclopropyl bond between the bridgehead carbons. Reactions with several stable free radicals and other known reagents with affinities for radicals indicated a very high degree of radical character present at the bridgehead positions. From kinetic studies of the reaction of DHA with molecular oxygen at approximately 1 atmosphere and 22°C, first order kinetic plots were obtained which yielded the rate constants of k = 15.0 x 10⁻⁵ sec⁻¹ in octane and 32.8 x 10⁻⁵ sec⁻¹ in xylene. Oxygen was absorbed to an extent slightly greater than one mole per mole of DHA. The reaction was without ambiguity shown to be of radical nature through the use of several free radical inhibitors to retard the reaction rate. The initiation mechanism of the DHA-oxygen copolymerization could not be determined with certainty. The spontaneous reaction was either initiated by oxygen radicals attacking the highly strained, highly p-orbital-charactered carbon atom from its unprotected back side or else by the internal bond of the cyclopropyl group spontaneously ring opening to form an adamantane diradical. In the latter case the radical formed would sometimes capture an oxygen before the equilibrium shifted back to the closed form. All that is known for certainty is that the 1,3-carbon bond in DHA is very highly strained and is either in equilibrium between an open and a closed form or else is at least very radical-like in nature.
Total integrals of global solutions to Painleve II
Creators: name: Baik, Jinho
name: Buckingham, Robert
name: DiFranco, Jeffery
name: Its, Alexander
Publisher: name: arXiv
Year: 2008
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 33E17; 35Q15; 15A52

description: We evaluate the total integral from negative infinity to positive infinity of all global solutions to the Painleve II equation on the real line. The method is based on the interplay between one of the equations of the associated Lax pair and the corresponding Riemann-Hilbert problem. In addition, we evaluate the total integral of a function related to a special solution to the Painleve V equation. As a corollary, we obtain short proofs of the computation of the constant terms of the limiting gap probabilities in the edge and the bulk of the Gaussian Orthogonal and Gaussian Symplectic Ensembles that were obtained recently in [4] and [18]. We also evaluate the total integrals of certain polynomials of the Painleve functions and their derivatives. These polynomials are the densities of the first integrals of the modified Korteweg-de Vries equation. We discuss the relations of the formulae we have obtained to the classical trace formulae for the Dirac operator on the line.
Falling Transiting Extrasolar Giant Planets
Creators: name: Levrard, B.
name: Winisdoerffer, C.
name: Chabrier, G.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We revisit the tidal stability of extrasolar systems harboring a transiting planet and demonstrate that, independently of any tidal model, none but one (HAT-P-2b) of these planets has a tidal equilibrium state, which implies ultimately a collision of these objects with their host star. Consequently, conventional circularization and synchronization timescales cannot be defined because the corresponding states do not represent the endpoint of the tidal evolution. Using numerical simulations of the coupled tidal equations for the spin and orbital parameters of each transiting planetary system, we confirm these predictions and show that the orbital eccentricity and the stellar obliquity do not follow the usually assumed exponential relaxation but instead decrease significantly, reaching eventually a zero value, only during the final runaway merging of the planet with the star. The only characteristic evolution timescale of {\it all} rotational and orbital parameters is the lifetime of the system, which crucially depends on the magnitude of tidal dissipation within the star. These results imply that the nearly circular orbits of transiting planets and the alignment between the stellar spin axis and the planetary orbit are unlikely to be due to tidal dissipation. Other dissipative mechanisms, for instance interactions with the protoplanetary disk, must be invoked to explain these properties.
description: To appear in ApJ Letters
Non-destructive Imaging of Individual Bio-Molecules
Creators: name: Germann, Matthias
name: Latychevskaia, Tatiana
name: Escher, Conrad
name: Fink, Hans-Werner
Publisher: name: arXiv
Year: 2009
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Radiation damage is considered to be the major problem that still prevents imaging an individual biological molecule for structural analysis. So far, all known mapping techniques using sufficient short wave-length radiation, be it X-rays or high energy electrons, circumvent this problem by averaging over many molecules. Averaging, however, leaves conformational details uncovered. Even the anticipated use of ultra-short but extremely bright X-ray bursts of a Free Electron Laser shall afford averaging over 10^6 molecules to arrive at atomic resolution. Here we present direct experimental evidence for non-destructive imaging of individual DNA molecules. In fact, we show that DNA withstands coherent low energy electron radiation with deBroglie wavelength in the Angstrom regime despite a vast dose of 10^8 electrons/nm^2 accumulated over more than one hour.
description: 11 pages, 3 figures
Numerical Approach to Central Limit Theorem for Bifurcation Ratio of Random Binary Tree
Creators: name: Yamamoto, Ken
name: Yamazaki, Yoshihiro
Publisher: name: arXiv
Year: 2009
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: A central limit theorem for binary tree is numerically examined. Two types of central limit theorem for higher-order branches are formulated. A topological structure of a binary tree is expressed by a binary sequence, and the Horton-Strahler indices are calculated by using the sequence. By fitting the Gaussian distribution function to our numerical data, the values of variances are determined and written in simple forms.
Enabling Open Science with the SunPy Ecosystem
Creators: name: The SunPy Project
name: Barnes, Will
name: Shih, Albert
name: Freij, Nabil
name: Mumford, Stuart
name: Ireland, Jack
name: Hayes, Laura
Publisher: name: Zenodo
Year: 2023

description: The primary goal of the SunPy Project is to facilitate and promote the use and development of community-led, free and open-source solar data-analysis software based on the scientific Python environment. To accomplish this goal, the SunPy Project maintains the sunpy package for downloading, loading, and transforming solar data, in addition to maintaining and supporting a set of affiliated packages for instrument- and analysis-specific tasks. Together these form the SunPy Ecosystem, a set of interoperable Python packages for solar physics research. Packages within the SunPy Ecosystem heavily utilize and/or extend capabilities provided by the astropy package. Additionally, many packages within the SunPy Ecosystem are also part of the Python in Heliophysics Community (PyHC), an effort to coordinate Python software development across heliophysics. In this presentation, we show how the SunPy Project and Ecosystem promote and enable three aspects of Open Science: Open Software, Open Data and Open Results. In particular, we show how open development practices lead to high-quality research software within the SunPy ecosystem and how such practices encourage community ownership of software. Additionally, we discuss how the philosophy of Open Data in the solar physics community combined with the open development model of the SunPy Project allows users and developers to challenge the hidden assumptions in data and maximize its scientific potential. Finally, we demonstrate that the adoption of software from the wider scientific Python community as well as the development of extensible tools by the SunPy Project lead to a more interoperable Python software ecosystem within astrophysics and heliophysics.
A photonic cluster state machine gun
Creators: name: Lindner, Netanel H.
name: Rudolph, Terry
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a method to convert certain single photon sources into devices capable of emitting large strings of photonic cluster state in a controlled and pulsed "on demand" manner. Such sources would greatly reduce the resources required to achieve linear optical quantum computation. Standard spin errors, such as dephasing, are shown to affect only 1 or 2 of the emitted photons at a time. This allows for the use of standard fault tolerance techniques, and shows that the photonic machine gun can be fired for arbitrarily long times. Using realistic parameters for current quantum dot sources, we conclude high entangled-photon emission rates are achievable, with Pauli-error rates per photon of less than 0.2%. For quantum dot sources the method has the added advantage of alleviating the problematic issues of obtaining identical photons from independent, non-identical quantum dots, and of exciton dephasing.
description: Final version accepted to Physical Review Letters, includes the supplemtary material with some more detailed calculations
EBE, HEMŞİRE VE PEDİATRİK HEKİMLERİNİN YENİDOĞAN AĞRISINDA KULLANILAN NON-FARMAKOLOJİK YÖNTEMLERE YAKLAŞIMLARININ BELİRLENMESİ
Creators: name: Kaya Dilek Bay, Meryem Erdem Efşan
Publisher: name: Zenodo
Year: 2019
Subjects: newborns,pain.education.midwife

description: Ağrı yenidoğanda travma, hastalık ya da çeşitli tıbbi girişimlere bağlı olarak en sık yaşanan deneyimlerden biridir. Bu dönemde ağrı etkili girişimlerle hafifletilmez ya da yok edilmez ise ilerleyen dönemlerde nörolojik ve davranışsal bozukluklara sebep olabilir. Bu bağlamda bu araştırma İstanbul’un farklı hastaneleri ve Aile Sağlık Merkezlerinde çalışan hekim ve ebelerin yenidoğanda ağrının giderilmesine yönelik yaklaşımlarını saptamak amacıyla yapılmıştır
description: Tüm yenidoğanlar yaşamın ilk günlerinde ağrılı ve stresli girişimlere maruz kalırlar. Doğumdan sonra daha sağlıklı bir dönem geçirerek yenidoğanın çevreye adaptasyonunu hızlandırmak, hastanede kalış süresini kısaltmak, yenidoğanın beslenmesine ve büyümesine katkı sağlamak için yenidoğana hizmet veren sağlık profesyonellerinin yenidoğanların ağrısını kontrol altına alması önemlidir.
Quasilinear analysis of the zonal flow back-reaction on ion-temperature-gradient mode turbulence
Creators: name: Anderson, Johan
name: Li, Jiquan
name: Kishimoto, Yasuaki
name: Kim, Eun-jin
Publisher: name: arXiv
Year: 2009
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: There is strong evidence in favor for zonal flow suppression of the Ion-Temperature-Gradient (ITG) mode turbulence, specifically close to the linear stability threshold. The present letter attempts to analytically calculate the effects of zonal flow suppression of the ITG turbulence through deriving a modified dispersion relation including the back-reaction of the zonal flows on the ITG turbulence based on the quasilinear theory. The results are manifested in a reduction of the linear growth rate and an increase in the effective linear ITG threshold.
description: 15 pages, 3 figures
Vibrational spectroscopic studies of some simple and mixed selenium (iv) oxy-halides and pseudohalides.
Creators: name: Wilson, William W.
Publisher: name: University of British Columbia
Year: 2011

description: The infrared and polarized Raman spectra of SeOBr₂ as a solid, melt, and in solution have been obtained. The frequencies that were found are consistent with Cs symmetry and a pyramidal molecule. Ionic dissociation, like in other SeOX₂ compounds, is evidenced by electrical conductance measurements. SeOBr₂ can act both as a Lewis acid or base. For example, a salt with the composition KSeOBr₃ has been prepared from KBr and SeOBr₂. Ligand redistribution reactions of various SeOX₂ and SeOY₂ compounds, where X and Y are F, CI, Br, and SO₃F, were studied via vibrational spectroscopic and ¹⁹F nuclear magnetic resonance techniques. The presence of the mixed SeOXY compounds has been detected in all these systems basically in equilibrium with their parent compounds. None of the SeOXY compounds could be separated out of the mixtures.
Writing Islamic migration
Creators: name: Collins, CM
Publisher: name: University Of Tasmania
Year: 2023

description: Fiction component: 'The Price of Two Sparrows'‚Äö- a novel Exegesis: Representations of Islamic Migration in Three Works of Contemporary Fiction: Nadine Gordimer's The Pickup, Michael Mohammed Ahmad's The Tribe and Amy Waldman's The Submission. 'The Price of Two Sparrows' tells the story of a proposed mosque development in a fictional town in the Netherlands. The novel's central characters are first- and second-generation migrants: Heico, an Australian-born ornithologist who relocated to his mother's home country as a pre-adolescent; Eliza, his Jewish-American wife who is not sure if she can make the Netherlands her home; Nada, a recent immigrant from Morocco; and Salema, a Turkish-Dutch architect. When a journalist calls Heico to ask him to comment on a proposed development that borders a bird sanctuary, a battle for control of the block of land purchased for a planned mosque begins. The novel plays out against the backdrop of an uncertain period in the Netherlands when two assassinations occurred within the span of two-and-a- half years, both related to issues surrounding Muslim immigration. 'The Price of Two Sparrows' is a work of literary fiction dealing with issues of religion and secularism, science and religion, and the civil and social consequences of new migration trends in Europe. The exegesis examines three contemporary works of fiction, each dealing with a different phase of migration by people of Islamic faith or background: Nadine Gordimer's The Pickup, Michael Mohammed Ahmad's The Tribe and Amy Waldman's The Submission. Together the three novels give an insight into the multi-generational immigration and integration stories of Islamic individuals and families. The exegesis touches on gender and power in migrant fiction; the use of the second-generation child as a literary device to bridge cultures and articulate social critiques; and representations of the second-generation adult, contending with issues of identity, racism and systemic disadvantage.
Reversible nonreciprocity in photonic structures infiltrated with liquid crystals
Creators: name: Miroshnichenko, Andrey E.
name: Brasselet, Etienne
name: Kivshar, Yuri S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate how to achieve reversible nonreciprocal optical response in a periodic photonic structure with a pair of defects, one of them being a nonlinear liquid crystal defect layer. The twin defect layers structure is symmetric at low intensity and becomes asymmetric above a power threshold corresponding to the optical reordering of the liquid crystal. We show that nonreciprocal effects can be reversed by changing the wavelength as a consequence of the defect mode dependent light localization inside the structure.
description: 3 pages, 2 figures
Relativistic stars with purely toroidal magnetic fields with realistic equations of state
Creators: name: Kiuchi, Kenta
name: Kotake, Kei
name: Yoshida, Shijun
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate equilibrium sequences of relativistic stars containing purely toroidal magnetic fields with four kinds of realistic equations of state (EOSs) of SLy (Douchin et al.), FPS (Pandharipande et al.), Shen (Shen et al.), and LS (Lattimer & Swesty). We numerically construct thousands of equilibrium configurations. Particularly we pay attention to the equilibrium sequences of constant baryon mass and/or constant magnetic flux, which model evolutions of an isolated neutron star. Important properties obtained in this study are summarized as follows ; (1) The dependence of the mass-shedding angular velocity on the EOSs is determined from that of the non-magnetized case. The stars with Shen(FPS) EOS reach the mass-shedding limit at the smallest(largest) angular velocity, while the stars with SLy or Lattimer-Swesty EOSs take the moderate values. (2) For the supramassive sequences, the equilibrium configurations are found to be generally oblate for the realistic EOSs in sharp contrast to the polytropic stars. For FPS(LS) EOS, the parameter region which permits the prolately deformed stars is widest(narrowest). For SLy and Shen EOS, it is in medium. Furthermore, the angular velocities $Ω_{\rm up}$, above which the stars start to spin up as they lose angular momentum, are found to depend sharply on the realistic EOSs. Our analysis indicates that the hierarchy of this spin up angular velocity is $Ω_{\rm up,SLy} > Ω_{\rm up,FPS} > Ω_{\rm up,LS}>Ω_{\rm up,Shen}$ and this relation holds even if the sequences have strong magnetic fields. Our results suggest the EOSs within the relativistic stars containing purely toroidal magnetic fields can be constrained by observing the angular velocity, the gravitational wave, and the signature of the spin up.
description: Accepted to APJ, high-resolution figures will be appeared in published-version
Quantum Monte Carlo for minerals at high pressure: Phase stability, equations of state, and elasticity of silica
Creators: name: Driver, K. P.
name: Cohen, R. E.
name: Wu, Zhigang
name: Militzer, B.
name: Ríos, P. López
name: Towler, M. D.
name: Needs, R. J.
name: Wilkins, J. W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Silica is an abundant component of the Earth whose crystalline polymorphs play key roles in its structure and dynamics. As the simplest silicates, understanding pure silica is a prerequisite to understanding the rocky part of the Earth, its majority. First principle density functional theory (DFT) methods have often been used to accurately predict properties of silicates. Here, we study silica with quantum Monte Carlo (QMC), which until now was not computationally possible for such complex materials, and find that QMC overcomes the failures of DFT. QMC is a benchmark method that does not rely on density functionals, but rather explicitly treats the electrons and their interactions via a stochastic solution of Schrodinger's equation. Using ground state QMC plus phonons within the quasiharmonic approximation from density functional perturbation theory, we obtain the thermal pressure and equations of state of silica phases up to Earth's core-mantle boundary. Our results provide the most well-constrained equations of state and phase boundaries available for silica. QMC indicates a transition to the most dense alpha-PbO2 structure above the core-insulating D" layer, suggesting the absence of significant free silica in the bulk lower mantle, which has been assumed but never proven. We also find an accurate shear elastic constant and its geophysically important softening with pressure.
description: 20 pages, 4 figures, 1 table
First Confirmed Detection of a Bipolar Molecular Outflow from a Young Brown Dwarf
Creators: name: Phan-Bao, Ngoc
name: Riaz, Basmah
name: Lee, Chin-Fei
name: Tang, Ya-Wen
name: Ho, Paul T. P.
name: Martin, Eduardo L.
name: Lim, Jeremy
name: Ohashi, Nagayoshi
name: Shang, Hsien
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Studying the earliest stages in the birth of stars is crucial for understanding how they form. Brown dwarfs with masses between that of stars and planets are not massive enough to maintain stable hydrogen-burning fusion reactions during most of their lifetime. Their origins are subject to much debate in recent literature because their masses are far below the typical mass where core collapse is expected to occur. We present the first confirmed evidence that brown dwarfs undergo a phase of molecular outflow that is typical of young stars. Using the Submillimeter Array, we have obtained a map of a bipolar molecular outflow from a young brown dwarf. We estimate an outflow mass of 1.6 x 10^-4 M_Sun and a mass-loss rate of 1.4 x 10^-9 M_Sun. These values are over two orders of magnitude smaller than the typical ones for T Tauri stars. From our millimiter continuum data and our own analysis of Spitzer infrared photometry, we estimate that the brown dwarf has a disk with a mass of 8 x 10^-3 M_Sun and an outer disk radius of 80 AU. Our results demonstrate that the bipolar molecular outflow operates down to planetary masses, occurring in brown dwarfs as a scaled-down version of the universal process seen in young stars.
description: accepted by ApJ Letters
An Agricultural Processing Plant in Your Community?: An Aid in Rural Areas Development
Creators: name: Agricultural Research Service
name: Agricultural Research Service
Publisher: name: Unknown
Year: 1965
Subjects: Community/Rural/Urban Development

description: Excerpt from the report: This publication is addressed to civic leaders who are interested in the establishment of manufacturing enterprises as a means of increasing local jobs and incomes. It is designed to help them determine whether an agricultural processing plant would be a practicable enterprise in their communities.
Pes studies of some five-membered ring compounds
Creators: name: Bain, Alex D.
Publisher: name: University of British Columbia
Year: 2011

description: Recently there has been considerable interest in studying the interactions of orbitals which were formerly thought of as localized and isolated. The technique of Photoelectron Spectroscopy (PES) is well suited for this and PE spectra are presented here for the series of five membered ring molecules consisting of tetrahydrofuran, γ-butyrolactone, 2,5-dihydrofuran, γ-crotonolactone, 1,3-dioxolane, ethylene carbonate, vinylene carbonate, 4-cyclopentene 1,3-dione, maleimide and maleic anhydride. In these spectra the IP's of the carbonyl oxygen lone pairs and the higher π levels have been assigned and trends in these IP's established in the series. For the carbonyl oxygen lone pair, the shift in IP caused by various groups (oxygen atoms α to the carbonyl, double bonds in the ring and additional carbonyl groups β to the one in question) are found to be approximately additive, which suggests that inductive effects are important. However, the pattern of π IP's must be rationalized in terms of both inductive and resonance effects. Finally some correlations with UV spectra for the last three molecules are presented.
Variational approach to the Caldeira-Leggett model
Creators: name: Sabio, Javier
name: Sols, Fernando
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We apply the displaced-oscillator variational ansatz to the Caldeira-Leggett model for a quantum particle in a one-dimensional box described by a tight-binding chain. We focus on the case of an Ohmic environment and study the phase diagram for different chain lengths. At zero temperature there is a phase transition to a localized phase when the number of sites is even. At finite temperature, a transition from a coherent to an incoherent regime is predicted for all the chain lengths considered. Finally, the results are compared to those obtained with numerical techniques.
description: 7 pages, 4 figures
Plectoneme creation reduces the rotational friction of a polymer
Creators: name: Wada, Hirofumi
name: Netz, Roland R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The torsional dynamics of a semiflexible polymer with a contour length $L$ larger than its persistence length L_p that is rotated at fixed frequency omega_0 at one end is studied by scaling arguments and hydrodynamic simulations. We find a non-equilibrium transition at a critical frequency omega_*: In the linear regime, omega_0 < omega_*, axial spinning is the dominant dissipation mode. In the non-linear regime, omega_0 > omega_*, the twist-dissipation mode involves the continuous creation of plectonemes close to the driven end and the rotational friction is substantially reduced.
Additional file 1 of Association of annual hospital septic shock case volume and hospital mortality
Creators: name: Chen, Yan
name: Ma, Xu-dong
name: Kang, Xiao-hui
name: Gao, Si-fa
name: Peng, Jin-min
name: Li, Shan
name: Liu, Da-wei
name: Zhou, Xiang
name: Weng, Li
name: Du, Bin
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Computational Biology

description: Additional file 1. Fig. S1. Tertiary hospital proportion (%) of all types of hospitals in different provinces and cities. Fig. S2. Correlation of 3-hour bundle and 6-hour bundle compliance with linear regression with 95% CI. Spearman rank correlation test, p = 0.7; p < 0.001. Fig. S3. Correlation between sites of infection, age, sex, and proportion of APACHE II score more than 15. Abbreviations: CNS, central nervous system; older, more than 60 years old. Table S1 Association Between Septic shock case volume quartile and hospital mortality of septic shock.
Adaptive Measurements in the Optical Quantum Information Laboratory
Creators: name: Wiseman, H. M.
name: Berry, D. W.
name: Bartlett, S. D.
name: Higgins, B. L.
name: Pryde, G. J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Adaptive techniques make practical many quantum measurements that would otherwise be beyond current laboratory capabilities. For example: they allow discrimination of nonorthogonal states with a probability of error equal to the Helstrom bound; they allow measurement of the phase of a quantum oscillator with accuracy approaching (or in some cases attaining) the Heisenberg limit; and they allow estimation of phase in interferometry with a variance scaling at the Heisenberg limit, using only single qubit measurement and control. Each of these examples has close links with quantum information, in particular experimental optical quantum information: the first is a basic quantum communication protocol; the second has potential application in linear optical quantum computing; the third uses an adaptive protocol inspired by the quantum phase estimation algorithm. We discuss each of these examples, and their implementation in the laboratory, but concentrate upon the last, which was published most recently [Higgins {\em et al.}, Nature vol. 450, p. 393, 2007].
description: 12 pages, invited paper to be published in IEEE Journal of Selected Topics in Quantum Electronics: Quantum Communications and Information Science
Targeted search for continuous gravitational waves: Bayesian versus maximum-likelihood statistics
Creators: name: Prix, Reinhard
name: Krishnan, Badri
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the Bayesian framework for detection of continuous gravitational waves (GWs) in the context of targeted searches, where the phase evolution of the GW signal is assumed to be known, while the four amplitude parameters are unknown. We show that the orthodox maximum-likelihood statistic (known as F-statistic) can be rediscovered as a Bayes factor with an unphysical prior in amplitude parameter space. We introduce an alternative detection statistic ("B-statistic") using the Bayes factor with a more natural amplitude prior, namely an isotropic probability distribution for the orientation of GW sources. Monte-Carlo simulations of targeted searches show that the resulting Bayesian B-statistic is more powerful in the Neyman-Pearson sense (i.e. has a higher expected detection probability at equal false-alarm probability) than the frequentist F-statistic.
description: 12 pages, presented at GWDAW13, to appear in CQG
Mössbauer and adsorption study of Fe⁵⁷ in Linde L zeolite
Creators: name: Lassau, Raymond Troy
Publisher: name: University of British Columbia
Year: 2011

description: A single Fe³⁺ species has been introduced into Linde L zeolite and is identified as an iron oxyhydroxide from its Mössbauer relaxation properties. The effects of N₂, CO₂ and C₂H₆ on the ferric species and on the bulk behaviour of the sample are observed by Mössbauer Spectroscopy and adsorption studies under outgassing conditions. The ferric oxyhydroxide initially blocks the pores to gas adsorption but reducing it to Fe⁰ at 943⁰ K and reoxidizing it to α-Fe₂0₃ in air at 773⁰ K frees the pores. The bulk α-Fe₂0₃ is concluded to lie on the external zeolite surface.
Enhancement of Cavity Cooling of a Micromechanical Mirror Using Parametric Interactions
Creators: name: Huang, Sumei
name: Agarwal, G. S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: It is shown that an optical parametric amplifier inside a cavity can considerably improve the cooling of the micromechanical mirror by radiation pressure. The micromechanical mirror can be cooled from room temperature 300 K to sub-Kelvin temperatures, which is much lower than what is achievable in the absence of the parametric amplifier. Further if in case of a precooled mirror one can reach millikelvin temperatures starting with about 1 K. Our work demonstrates the fundamental dependence of radiation pressure effects on photon statistics.
description: 14 pages, 7 figures
Algorithmic Management in the Platform Economy
Creators: name: Stark, David
name: Pais, Ivana
Publisher: name: Sociologica
Year: 2021

description: The platform model is the distinguishing organizational form of the early decades of the twenty-first century. Whereas actors in markets contract, hierarchies command, and networks collaborate, platforms co-opt assets, resources, and activities that are not part of the firm. As a distinctive organizational form, the platform model confronts a distinctive managerial challenge: how to manage value-creating activities that are undertaken on the platform but not in the firm? In a triangular geometry, platform owners co-opt the behavior of providers and users, enrolling them in the practices of algorithmic management without managerial authority having been delegated to them. Acting on their own behalf, the ratings and other activities of providers and consumers are algorithmically translated into rankings and other calculating devices that circulate through feedback loops that are twisted rather than circular. Algorithmic management involves a peculiar kind of cybernetic control because at each fold of the feedback loop accountability can be deflected and denied. Whereas Scientific Management in the early twentieth century offered a legitimating principle for the growth of a new managerial class, algorithmic management in the early twenty-first century is reshaping the managerial class. Its power asymmetries at the organizational level are related to coalitions at the regulatory level in which platform owner and investors are in alliance with platform consumers.
description: Sociologica, Vol. 14 No. 3 (2020): Power and Control in Platform Monopoly Capitalism
Scheduling for next era operations of geodetic VLBI : simulations with the AuScope array
Creators: name: Iles, EJL
Publisher: name: University Of Tasmania
Year: 2023

description: The technique of Very Long Baseline Interferometry (VLBI) is an important method for the collection of geodetic and astrometric data. At least two telescopes simultaneously observe signals from a range of extra-galactic radio sources, coordinated by a well-optimised observing schedule. Improving this scheduling process is an important focus as we move into the next generation of geodetic VLBI. This project considered Earth Orientation Parameters (EOPs) and station coordinates, in order to develop our understanding of the capabilities and limitations of the traditional scheduling method, as well as the new, automated scheduling mode 'dynamic scheduling'. Scheduling with the Australian AuScope VLBI array, in particular, was considered through a regime of repeated scheduling, simulation and analysis. However, the findings are widely applicable to other stations and networks hoping to maximise their effective operations in line with the global goals of the geodetic community. We find that short interruptions to a standard 24 hour schedule will not significantly impact the precision of results. This is true even if the total time lost is up to half the total observing time. Conversely, reducing the length of the observing period results in an exponential-like degradation of precision. The dynamic scheduling mode is shown to be capable of producing results consistent with current scheduling. However, it is significantly more flexible, with close to real-time adaptability. It is shown that the baseline-limited AuScope array can also be augmented dynamically to improve EOP precision through an intermittent contribution from only 2 additional global stations. The results presented here confirm that a positive impact on efficiency and precision in geodetic VLBI can be achieved through effective scheduling. In light of this, the current scheduling practice can be adapted immediately for greater operational capability.
Post common envelope binaries from SDSS. IV: SDSSJ121258.25-012310.1, a new eclipsing system
Creators: name: Gómez-Morán, A. Nebot
name: Schwope, A. D.
name: Schreiber, M. R.
name: Gänsicke, B. T.
name: Pyrzas, S.
name: Schwarz, R.
name: Southworth, J.
name: Kohnert, J.
name: Vogel, J.
name: Krumpe, M.
name: Rodríguez-Gil, P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: From optical photometry we show that SDSSJ121258.25-012310.1 is a new eclipsing, post common-envelope binary with an orbital period of 8.06 hours and an eclipse length of 23 minutes. We observed the object over 11 nights in different bands and determined the ephemeris of the eclipse to HJD_mid = 2454104. 7086(2) + 0.3358706(5) x E, where numbers in parenthesis indicate the uncertainties in the last digit. The depth of the eclipse is 2.85 +/- 0.17 mag in the V band, 1.82 +/- 0.08 mag in the R band and 0.52 +/- 0.02 mag in the I band. From spectroscopic observations we measured the semi-amplitude of the radial velocity K_2 = 181 +/- 3 km/s for the secondary star. The stellar and binary parameters of the system were constrained from a) fitting the SDSS composite spectrum of the binary, b) using a K-band luminosty-mass relation for the secondary star, and c) from detailed analyses of the eclipse light curve. The white dwarf has an effective temperature of 17700 +/- 300 K, and its surface gravity is logg =7.53 +/- 0.2. We estimate that the spectral type of the red dwarf is M4 +/- 1 and the distance to the system is 230 +/- 20 parsec. The mass of the secondary star is estimated to be in the range Msec = 0.26-0.29 Msun, while the mass of the white dwarf is most likely Mwd = 0.46-0.48 Msun. From an empirical mass-radius relation we estimate the radius of the red dwarf to be in the range 0.28-0.31 Rsun, whereas we get Rwd = 0.016-0.018 Rsun from a theoretical mass-radius realation. Finally we discuss the spectral energy distribution and the likely evolutionary state of SDSS1212-0123.
description: 9 pages, 11 figures, 3 tables, accepted for publication in A&A
Functional Classical Mechanics and Rational Numbers
Creators: name: Trushechkin, A. S.
name: Volovich, I. V.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mathematical Physics (math-ph)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: The notion of microscopic state of the system at a given moment of time as a point in the phase space as well as a notion of trajectory is widely used in classical mechanics. However, it does not have an immediate physical meaning, since arbitrary real numbers are unobservable. This notion leads to the known paradoxes, such as the irreversibility problem. A "functional" formulation of classical mechanics is suggested. The physical meaning is attached in this formulation not to an individual trajectory but only to a "beam" of trajectories, or the distribution function on phase space. The fundamental equation of the microscopic dynamics in the functional approach is not the Newton equation but the Liouville equation for the distribution function of the single particle. The Newton equation in this approach appears as an approximate equation describing the dynamics of the average values and there are corrections to the Newton trajectories. We give a construction of probability density function starting from the directly observable quantities, i.e., the results of measurements, which are rational numbers.
description: 8 pages
Additional file 1 of Long-term exposure to high-concentration silver nanoparticles induced toxicity, fatality, bioaccumulation, and histological alteration in fish (Cyprinus carpio)
Creators: name: Kakakhel, Mian Adnan
name: Wu, Fasi
name: Sajjad, Wasim
name: Zhang, Qi
name: Khan, Ikram
name: Ullah, Kalim
name: Wang, Wanfu
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Additional file 1: Table S3. The daily basis bioaccumulation of B-AgNPs in gill of (Cyprinus carpio). Table S4. The daily basis bioaccumulation of B-AgNPs in intestine of (Cyprinus carpio). Table S5. The daily basis bioaccumulation of B-AgNPs in muscles of (Cyprinus carpio). Table S6. The daily basis bioaccumulation of B-AgNPs in liver of (Cyprinus carpio).
Comptes rendus de thèse
Creators: name: Jönsson, Madeleine
name: Smith, Peter M.
Publisher: name: Classiques Garnier
Year: 2019
Subjects: subject: Rapports de genre
subject: Conseil agricole
subject: Plateforme de connaissance
subject: Agricultrice
subject: Innovation
subject: Kenya
subject: Gender relations
subject: Farm advisory service
subject: Knowledge-based platform
subject: Woman farmer
subject: Innovation
subject: Kenya

description: Cette thèse de doctorat analyse les rapports de genre associés aux plateformes de connaissances accessibles en ligne au Kénya. Elle s’appuie sur trois approches : l’économie féministe, la théorie de la régulation, et l’économie des services. La conjugaison de ces approches institutionnalistes permet d’analyser comment les évolutions institutionnelles affectent l’inclusion des objectifs d’égalité des sexes dans l’intervention publique et dans le fonctionnement effectif des plateformes.
description: This doctoral research analyses how ICTs take into account gender relations, and the situation of women farmers in Kenya. The work is based on three institutional economic research approaches: feminist economics, the French regulation theory, and service economics. Combining these approaches made it possible to analyse how institutional developments affect the integration of gender equality in policy work and in platforms functioning.
Induced Current and Aharonov-Bohm Effect in Graphene
Creators: name: Jackiw, R.
name: Milstein, A. I.
name: Pi, S. -Y.
name: Terekhov, I. S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The effect of vacuum polarization in the field of an infinitesimally thin solenoid at distances much larger than the radius of solenoid is investigated. The induced charge density and induced current are calculated. Though the induced charge density turned out to be zero, the induced current is finite periodical function of the magnetic flux $Φ$. The expression for this function is found exactly in a value of the flux. The induced current is equal to zero at the integer values of $Φ/Φ_0$ as well as at half-integer values of this ratio, where $Φ_0=2π\hbar c/e$ is the elementary magnetic flux. The latter is a consequence of the Furry theorem and periodicity of the induced current with respect to magnetic flux. As an example we consider the graphene in the field of solenoid perpendicular to the plane of a sample.
description: 3 pages, 1 figure, version accepted to Phys. Rev. B
An investigation of emotion recognition ability and metacognitive judgements of emotion recognition performance in trait narcissism
Creators: name: Turner, NH
Publisher: name: University Of Tasmania
Year: 2023

description: Empathy deficits have been consistently found in people with Narcissistic Personality Disorder (NPD) and trait narcissism. However, few studies have examined underlying difficulties in social cognitive ability experienced in these individuals. This study was a preliminary investigation to determine whether individuals with higher levels of trait narcissism would experience difficulties identifying basic emotional expressions (anger, disgust, sadness, fear, happiness and surprise) and whether these individuals lack insight into their emotion perception abilities. Sixty participants aged between 18 and 35 (M = 24.17, SD = 5.26) completed the Short Dark Triad (SD3) and the Emotion Recognition Task (ERT) to assess emotion perception abilities. Metacognition of emotion recognition was assessed by obtaining confidence ratings (0% to 100%) for each presented emotion. The study identified trends towards those with higher trait narcissism experiencing emotion recognition difficulties, particularly for the emotions fear, sadness and surprise. They were also found to be more overconfident in their predictions of emotion recognition ability. The results provide preliminary evidence that higher levels of trait narcissism may be related to difficulties in emotion perception ability and metacognitive functioning concerning this ability. This might contribute to the underlying associated difficulties in empathy often seen in individuals high in trait narcissism
SARS-COV-2 and the (Dark) Future of Society: A Machiavellian Approach to the End of Body Sovereignty and the Beginning of Bio-Feudalism
Creators: name: Molle, Andrea
Publisher: name: Sociologica
Year: 2021

description: As much as the event following 9/11 triggered massive changes in our understanding of privacy rights and increased our level of acceptance of government infringement on individuals’ freedom, the pandemic of the SARS-COV-2 is threatening to change our understanding of societal hierarchy and democratic process. In this essay, we imagine a society where two classes, defined by their susceptibility to infection, emerge, and a neo-feudal system is established. We suggest that it is possible to evaluate how likely a dystopian outcome is by using Machiavelli’s understanding of the impact of the Plague on medieval Florence. We also recommend following his advice to avoid such a drift by reaffirming the primacy of politics over scientism.
description: Sociologica, Vol. 14 No. 3 (2020): Power and Control in Platform Monopoly Capitalism