cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Synthesis and properties of methanesulfonyl derivatives of diethyl esters of 5-(hydroxyalkylamino)-1,3-oxazol-4-yl-phosphonic acids
Creators: name: Golovchenko, О. V.
name: Brusnakov, M. Yu.
name: Shabelko, Yu. О.
name: Brovarets, V. S.
name: Vydzhak, R. M.
name: Bahrieieva, O. S.
name: Potikha, L. M.
name: Shishkina, S. V.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: Biophysics
Biochemistry
Space Science
Physical Sciences not elsewhere classified
Medicine
Molecular Biology
Chemical Sciences not elsewhere classified
Developmental Biology

description: A number of {[4-(diethoxyphosphoryl)-2-R-1,3-oxazol-5-yl]amino}alkyl methanesulfonates were synthesized and the peculiarities of their reaction with triethylamine were studied. The influence of the structure of the 5-alkanolamine substituent on the efficiency of their transformation into 7-R-1-ethoxy-5-methyl-1,3,4,5-tetrahydro-1λ5-[1,3]oxazolo[4,5-c][1,5,2]oxazaphosphepine-1-ones was clarified. The structure of the [1,3]oxazolo[4,5-c][1,5,2]oxazaphosphepine derivatives has been reliably proven by elemental analysis, IR, 1H, 13C, and 31P NMR spectroscopy (including 1D and 2D experiments), mass spectrometry and single crystal X-ray diffraction. The oxazole cycle in [1,3]oxazolo[4,5-c][1,5,2]oxazaphosphepines is easily cleaved by water in an acidic environment, which leads to the formation of derivatives of the new heterocyclic system – N-(2-ethoxy-5-methyl-2-oxido-4-oxo-1,5,2-oxazaphosphepan-3-yl)arylamides.
Tableau de correspondance des manuscrits arabes du Sinaï et du catalogue de Murad Kamil
Creators: name: Samīr, Samīr Ḫalīl
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 60 (1976): Oriens christianus, Band 60
Wie fühlst du dich?
Creators: name: Franzenburg, Geert
Publisher: name: FoRuM Supervision - Zeitschrift für Beratungswissenschaft und Supervision
Year: 2021

description: FoRuM Supervision - Zeitschrift für Beratungswissenschaft und Supervision, 2021: Heft 58 - Zeiten der Pandemie
Additional file 1 of Prognosis of pathogen-proven acute respiratory distress syndrome diagnosed from a protocol that includes bronchoalveolar lavage: a retrospective observational study
Creators: name: Kyo, Michihito
name: Hosokawa, Koji
name: Ohshimo, Shinichiro
name: Kida, Yoshiko
name: Tanabe, Yuko
name: Shime, Nobuaki
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1: Table S1. Etiologies of pathogen-unproven ARDS (n=20).
Step by step: the insidious evolution of Australia’s asylum seeker regime since 1992
Creators: name: Taylor, Savitri
Publisher: name: La Trobe
Year: 2021
Subjects: subject: 180119 Law and Society
subject: FOS: Law

description: I have been thinking and writing about Australia’s asylum seeker policies for over 25 years. When I started back in 1991, the asylum seeker policies now espoused by the major parties would have been inconceivable to most politicians on all sides – but here we are. Explaining how we got here requires me to start further back in time than 1991. It requires me to start, in fact, with the drafting of the founding document of the Australian political and legal system – the Constitution. From there, I consider two key features of contemporary asylum seeker policy – mandatory detention, which was introduced in 1992, and offshore processing, which was initially introduced in 2001. I end the chapter by reflecting on the lessons of our past for our future.
On the influence of Stark broadening on Cr I lines in stellar atmospheres
Creators: name: Dimitrijevic, M. S.
name: Ryabchikova, T.
name: Popovic, L. C.
name: Shulyak, D.
name: Khan, S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using the semiclassical perturbation method, electron-, proton-, and ionized helium-impact line widths and shifts for the nine Cr I spectral lines from the $4p^7P^0-4d^7D$ multiplet, have been calculated for a perturbers density of 10$^{14}$ cm$^{-3}$ and temperatures T =2,500 - 50,000 K. The obtained results have been used to investigate the influence of Stark broadening effect in the Cr-rich Ap star $β$ CrB atmosphere on line shapes of these lines. It has been found that the contribution of the proton and He II collisions to the line width and shift is significant, and it is comparable and sometimes (depending of the electron temperature) even larger than electron-impact contribution. Moreover, not only the Stark line width, but, depending on the electron-, proton-, and He\ii density in stellar atmosphere also the Stark shift may contribute to the blue as well as to the red asymmetry of the same line. The obtained results have been used to investigate the influence of Stark broadening effect on line shapes of Crılines in the atmosphere of Cr-rich Ap star $β$ CrB.
description: 8 pages, Astron. Astrophys. accepted
Quantum dynamics of localized excitations in a symmetric trimer molecule
Creators: name: Pinto, R. A.
name: Flach, S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We study the time evolution of localized (local bond) excitations in a symmetric quantum trimer molecule. We relate the dynamical properties of localized excitations such as their spectral intensity and their temporal evolution (survival probability and tunneling of bosons) to their degree of overlap with quantum tunneling pair states. We report on the existence of degeneracy points in the trimer eigenvalue spectrum for specific values of parameters due to avoided crossings between tunneling pair states and additional states. The tunneling of localized excitations which overlap with these degenerate states is suppressed on all times. As a result local bond excitations may be strongly localized forever, similar to their classical counterparts.
description: 9 pages, 12 figures. Improved version with more discussions. Some figures were replaced for better understanding. Accepted in Phys. Rev. A
Additional file 4 of Managing residents in difficulty within CBME residency educational systems: a scoping review
Creators: name: Pirie, Jonathan
name: Amant, Lisa St.
name: Takahashi, Susan Glover
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 4: Supplement D: Annotated Bibliography.
Exact results for strongly-correlated fermions in 2+1 dimensions
Creators: name: Fendley, Paul
name: Schoutens, Kareljan
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We derive exact results for a model of strongly-interacting spinless fermions hopping on a two-dimensional lattice. By exploiting supersymmetry, we find the number and type of ground states exactly. Exploring various lattices and limits, we show how the ground states can be frustrated, quantum critical, or combine frustration with a Wigner crystal. We show that on generic lattices, the model is in an exotic ``super-frustrated'' state characterized by an extensive ground-state entropy.
description: 4 pages, 2 figures. v2: added discussion of "super-frustrated" state; to appear in PRL
Veränderte Verhältnisse im Professionsgefüge multiprofessioneller Beratungsteams – Chance oder Gefahr?
Creators: name: Wagenaar, Sylvia
Publisher: name: FoRuM Supervision - Zeitschrift für Beratungswissenschaft und Supervision
Year: 2021

description: FoRuM Supervision - Zeitschrift für Beratungswissenschaft und Supervision, 2021: Heft 58 - Zeiten der Pandemie
Das veränderte Erleben des Körpers im Kontext von Online-Präsenz aus interaktionstheoretischer und phänomenologischer Perspektive
Creators: name: Friesel-Wark, Heike
Publisher: name: FoRuM Supervision - Zeitschrift für Beratungswissenschaft und Supervision
Year: 2021

description: FoRuM Supervision - Zeitschrift für Beratungswissenschaft und Supervision, 2021: Heft 58 - Zeiten der Pandemie
Early evolution of disk, outflow, and magnetic field of young stellar objects: Impact of dust model
Creators: name: Tsukamoto, Y.
name: Machida, M. N.
name: Susa, H.
name: Nomura, H.
name: Inutsuka, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The formation and early evolution of low mass young stellar objects (YSOs) are investigated using three-dimensional non-ideal magneto-hydrodynamics simulations. We investigate the evolution of YSOs up to ~ 10^4 yr after protostar formation, at which protostellar mass reaches ~ 0.1 M_\odot . We particularly focus on the impact of the dust model on the evolution. We found that a circumstellar disk is formed in all simulations regardless of the dust model. Disk size is approximately 10 AU at the protostar formation epoch, and it increases to several tens of AU at ~ 10^4 yr after protostar formation. Disk mass is comparable to central protostellar mass and gravitational instability develops. In the simulations with small dust size, the warp of the pseudodisk develops ~ 10^4 yr after protostar formation. The warp strengthens magnetic braking in the disk and decreases disk size. Ion-neutral drift can occur in the infalling envelope under the conditions that the typical dust size is a \gtrsim 0.2μm and the protostar (plus disk) mass is M \gtrsim 0.1 M_\odot. The outflow activity is anti-correlated to the dust size and the strong outflow appears with small dust grains.
description: 20 pages, 19 figures. Accepted for publication in ApJ. The published version is available from https://iopscience.iop.org/article/10.3847/1538-4357/ab93d0. This is open access
Transformation brackets between U(n+1) -> U(n) -> SO(n) and U(n+1) -> SO(n+1) -> SO(n)
Creators: name: Santopinto, Elena
name: Bijker, Roelof
name: Iachello, Francesco
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We derive a general expression for the transformation brackets between the chains U(n+1) -> U(n) -> SO(n) and U(n+1) -> SO(n+1) -> SO(n).
description: 8 pages
Additional file 5 of Managing residents in difficulty within CBME residency educational systems: a scoping review
Creators: name: Pirie, Jonathan
name: Amant, Lisa St.
name: Takahashi, Susan Glover
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 5: Supplement E: Other Important Resources.
Supervision für Lehramtsanwärter*innen in der Pandemie
Creators: name: Deppe, Karin
Publisher: name: FoRuM Supervision - Zeitschrift für Beratungswissenschaft und Supervision
Year: 2021

description: FoRuM Supervision - Zeitschrift für Beratungswissenschaft und Supervision, 2021: Heft 58 - Zeiten der Pandemie
Probing the density dependence of the symmetry potential in intermediate energy heavy ion collisions
Creators: name: Li, Q.
name: Li, Z. X.
name: Soff, S.
name: Gupta, Raj K.
name: Bleicher, M.
name: Stoecker, H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Based on the ultrarelativistic quantum molecular dynamics (UrQMD) model, the effects of the density-dependent symmetry potential for baryons and of the Coulomb potential for produced mesons are investigated for neutron-rich heavy ion collisions at intermediate energies. The calculated results of the $Δ^-/Δ^{++}$ and $π^{-}/π^{+}$ production ratios show a clear beam-energy dependence on the density-dependent symmetry potential, which is stronger for the $π^{-}/π^{+}$ ratio close to the pion production threshold. The Coulomb potential of the mesons changes the transverse momentum distribution of the $π^{-}/π^{+}$ ratio significantly, though it alters only slightly the $π^-$ and $π^+$ total yields. The $π^-$ yields, especially at midrapidity or at low transverse momenta and the $π^-/π^+$ ratios at low transverse momenta, are shown to be sensitive probes of the density-dependent symmetry potential in dense nuclear matter. The effect of the density-dependent symmetry potential on the production of both, K$^0$ and K$^+$ mesons, is also investigated.
description: 28 pages in RevTex, 11 figures, 1 table, submitted to Journal of Physics G
Possible nanophotonics applications of the $V_N N_B$ defect in hexagonal boron nitride
Creators: name: Sajid, A.
name: Reimers, Jeffrey R.
name: Kobayashi, Rika
name: Ford, Michael J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The $V_N N_B$ defect in hexagonal boron nitride (h-BN), comprising a nitrogen vacancy adjacent to a nitrogen-for-boron substitution, is modelled in regard to its possible usefulness in a nanophotonics device. The modelling is done on both a simple model compound and on a 2D periodic representation of the defect, considering its magnetic and spectroscopic properties. The electronic distribution in $V_N N_B$ excited states is very open-shell in nature, and to deal with this two new computational methods are developed: one allows standard density-functional theory (DFT) calculations to be employed to evaluate state energies, the other introduces techniques needed to apply the VASP computational package to these and many other problems involving excited states. Also of general use, results from DFT calculations are then calibrated against those from ab initio methods, seeking robust computational schemes. These innovations allow 45 electronic states of the defect in its neutral, +1 and -1 charged forms to be considered. The charged forms of the defect are predicted to display properties of potential interest to nanophotonics.
Corona und die berufliche Pflege
Creators: name: Lebeda, Dorothee
Publisher: name: FoRuM Supervision - Zeitschrift für Beratungswissenschaft und Supervision
Year: 2021

description: FoRuM Supervision - Zeitschrift für Beratungswissenschaft und Supervision, 2021: Heft 58 - Zeiten der Pandemie
Agricultural research and productivity growth in India
Creators: name: Evenson, Robert E.
name: Pray, Carl E.
name: Rosegrant, Mark W.
name: Evenson, Robert E.
name: Pray, Carl E.
name: Rosegrant, Mark W.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Productivity Analysis
subject: Research and Development/Tech Change/Emerging Technologies
subject: Agriculture
subject: Research
subject: India
subject: Agricultural productivity

description: India’s investments in agricultural research, extension, and irrigation have made it one of the largest publicly funded systems in the world. But some policymakers who perceive that the benefits to research may be declining are advocating a cut back on public spending on research. This research report, which examines the effects of research and development on productivity in India, finds that India is still benefiting from these investments. The main sources of agricultural productivity growth in India during 1956–87 were public agricultural research and extension; expansion of irrigated area and rural infrastructure and improvement in human capital were also important contributors. The report also shows that the public benefits from private research can be substantial, indicating that private firms capture only part of the real value of improved inputs through higher prices. Private agricultural research accounted for more than 10 per cent of growth of total factor productivity (TFP) during 1956–87, and in 1966–75, when India was more open to foreign technology, private research contributed 22 per cent of productivity growth. Industrial policy and technology policy, including intellectual property rights policy, will require careful evaluation and reform in order to encourage private investment in agriculture. Evenson, Pray, and Rosegrant argue that barriers to technology transfer should be removed in order to stimulate technology transfer and growth. Nevertheless, public investment in agricultural research will likely retain its primary role. Contrary to concerns that growth in TFP has decreased over time, the report finds that during 1977–87, the period when the results in regions that adopted high-yielding varieties early on could be expected to taper off, TFP growth was 50 per cent higher than before the Green Revolution and 17 per cent higher than in the early years of the Green Revolution, indicating that gains are far from over. The rates of return to public agricultural research are high, and it appears that the government is under investing in agricultural research. Expanding public investment in research and extension would lead to even greater gains. The issues addressed in this report are part of an extensive research effort at IFPRI on the economic aspects of financing, organizing, and managing public agricultural research and development.
Optical Writing and Electro-Optic Imaging of Reversible Space Charges in Semi-Insulating CdTe Diodes
Creators: name: Cola, Adriano
name: Dominici, Lorenzo
name: Valletta, Antonio
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Deep levels control the space charge in electrically compensated semi-insulating materials. They limit the performance of radiation detectors but their interaction with free carriers can be favorably exploited in these devices to manipulate the spatial distribution of the electric field by optical beams. By using semi-insulating CdTe diodes as a case study, our results show that optical doping functionalities are achieved. As such, a highly stable, flux-dependent, reversible and spatially localized space charge is induced by a line-shaped optical beam focused on the cathode contact area. Real-time non-invasive imaging of the electric field is obtained through the Pockels effect. A simple and convenient method to retrieve the two-dimensional electric field components is presented. Numerical simulations involving just one deep level responsible for the electrical compensation confirm the experimental findings and help to identify the underlying mechanism and critical parameters enabling the optical writing functionalities.
description: main 17 pages, 7 figures, SM 5 pages, 6 figures, 1 video
Vorwort
Creators: name: Herausgeber*Innen Und Redaktion
Publisher: name: FoRuM Supervision - Zeitschrift für Beratungswissenschaft und Supervision
Year: 2021

description: FoRuM Supervision - Zeitschrift für Beratungswissenschaft und Supervision, 2021: Heft 58 - Zeiten der Pandemie
Detection of Cosmic Magnification with the Sloan Digital Sky Survey
Creators: name: Scranton, Ryan
name: Menard, Brice
name: Richards, Gordon T.
name: Nichol, Robert C.
name: Myers, Adam D.
name: Jain, Bhuvnesh
name: Gray, Alex
name: Bartelmann, Matthias
name: Brunner, Robert J.
name: Connolly, Andrew J.
name: Gunn, James E.
name: Sheth, Ravi K.
name: Bahcall, Neta A.
name: Brinkman, John
name: Loveday, Jon
name: Schneider, Donald P.
name: Thakar, Aniruddha
name: York, Donald G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an 8 sigma detection of cosmic magnification measured by the variation of quasar density due to gravitational lensing by foreground large scale structure. To make this measurement we used 3800 square degrees of photometric observations from the Sloan Digital Sky Survey (SDSS) containing \~200,000 quasars and 13 million galaxies. Our measurement of the galaxy-quasar cross-correlation function exhibits the amplitude, angular dependence and change in sign as a function of the slope of the observed quasar number counts that is expected from magnification bias due to weak gravitational lensing. We show that observational uncertainties (stellar contamination, Galactic dust extinction, seeing variations and errors in the photometric redshifts) are well controlled and do not significantly affect the lensing signal. By weighting the quasars with the number count slope, we combine the cross-correlation of quasars for our full magnitude range and detect the lensing signal at >4 sigma in all five SDSS filters. Our measurements of cosmic magnification probe scales ranging from 60 kpc/h to 10 Mpc/h and are in good agreement with theoretical predictions based on the WMAP concordance cosmology. As with galaxy-galaxy lensing, future measurements of cosmic magnification will provide useful constraints on the galaxy-mass power spectrum.
description: 12 pages, 8 figures, 2 tables; accepted for publication in ApJ
Die Entdeckung neuer Urkunden für das liturgiegeschichtliche Schrifttum des Mōšē bar Kēphā
Creators: name: Võõbus, Arthur
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 60 (1976): Oriens christianus, Band 60
Quasar detection in the UBC-NASA multi-narrowband survey
Creators: name: Braglia, Katia
Publisher: name: University of British Columbia
Year: 2009

description: The goal of this thesis is to select quasars by applying a novel analysis to the UBC - NASA Multi-Narrow band Survey (UNMS1) catalog. The database consists of drift-scan observations taken with the 3-m NASA Liquid Mirror Telescope (LMT) in 1996-1997 and in 1999, using 35 narrow band filters, from 4500 to 9500 Å, and 4 broad bands (B, V, R, I), necessary for calibration purposes. The method presented here is based on the comparison between UNMS1 catalog sources and stellar, galaxy, and quasar templates through a x² minimization procedure combined with Bayesian analysis. The x² parameter is useful to determine which model is the best fit for an observed Spectral Energy Distribution (SED); the odds ratio parameter, from the Bayes' theorem, is necessary in order to know the most likely category the source belongs, and it involves information such as the number of models for each category and the surface densities of stars, galaxies and quasars at a given magnitude. After the method was applied to templates, treated as test-objects, it is concluded that more than 85% of quasar candidates, selected with at least 30 filter measurements, are correctly classified: the misclassification is due mostly to the similarity between stellar models and quasars when important spectral features are missed. Of all the 39040 selected sources, 3056 quasar candidates were identified: most of them have typical redshift (z ~ 0.3 - 4), apparent V magnitude (V ~ 16 - 20) and spectral index ( α ~ -2 - 0.8), but there is also a non-negligible number of objects localized well outside these ranges. Analysing the position of these sources in the redshift - V magnitude plane, redshift - spectral index plane and V magnitude - spectral index plane, it is possible to identify misclassified quasars and remove them away from the sample. The final list of quasar candidates includes 2294 objects, among which 1 is in common with Veron's quasar catalog.
Most precise single redshift bound to the variability of the fine-structure constant
Creators: name: Levshakov, S. A.
name: Centurion, M.
name: Molaro, P.
name: D'Odorico, S.
name: Reimers, D.
name: Quast, R.
name: Pollmann, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Verification of theoretical predictions of an oscillating behavior of the fine-structure constant, alpha, with cosmic time requires high precision measurements at individual redshifts, while in earlier studies the mean Delta alpha/alpha values averaged over wide redshift intervals were usually reported. This requirement can be met via the Single Ion Differential alpha Measurement (SIDAM) procedure. We apply SIDAM to the FeII lines associated with the damped Ly-alpha system observed at z=1.15 in the spectrum of HE0515-4414. The weighted mean calculated on base of carefully selected 34 FeII pairs is =(-0.07+/-0.84)10^{-6}. The precision of this estimate represents the absolute improvement with respect to what has been done in the measurements of Delta alpha/alpha.
description: 2 pages, to appear in the Proceed. of IAU Symp.232 "The Scientific Requirements for Extremely Large Telescopes", eds. P. Whitelock, B. Leibundgut, and M. Dennefeld
Ephräms Rede gegen eine philosophische Schrift des Bardaisan
Creators: name: Ephraem, Syrus
name: Beck, Edmund
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 60 (1976): Oriens christianus, Band 60
One-dimensional electronic instabilities at the edges of $MoS_2$
Creators: name: Krishnamurthi, Sridevi
name: Farmanbar, Mojtaba
name: Brocks, Geert
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The one-dimensional metallic states that appear at the zigzag edges of semiconducting two-dimensional transition metal di-chalcogenides (TMDCs) result from the intrinsic electric polarization in these materials, which for D$_{3h}$ symmetry is a topological invariant. These 1D states are susceptible to electronic and structural perturbations that triple the period along the edge. In this paper we study possible spin density waves (SDWs) and charge-density waves (CDWs) at the zigzag edges of {\MS}, using first-principles density functional theory calculations. Depending on the detailed structures and termination of the edges, we observe either combined SDW/CDWs or pure CDWs, along with structural distortions. In all cases the driving force is the opening of a band gap at the edge. The analysis should hold for all group VI TMDCs with the same basic structure as $MoS_2$.
Phase Transition in the Aldous-Shields Model of Growing Trees
Creators: name: Dean, David S.
name: Majumdar, Satya N.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Data Structures and Algorithms (cs.DS)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We study analytically the late time statistics of the number of particles in a growing tree model introduced by Aldous and Shields. In this model, a cluster grows in continuous time on a binary Cayley tree, starting from the root, by absorbing new particles at the empty perimeter sites at a rate proportional to c^{-l} where c is a positive parameter and l is the distance of the perimeter site from the root. For c=1, this model corresponds to random binary search trees and for c=2 it corresponds to digital search trees in computer science. By introducing a backward Fokker-Planck approach, we calculate the mean and the variance of the number of particles at large times and show that the variance undergoes a `phase transition' at a critical value c=sqrt{2}. While for c>sqrt{2} the variance is proportional to the mean and the distribution is normal, for c
description: Latex 17 pages, 6 figures
Additional file 2 of Managing residents in difficulty within CBME residency educational systems: a scoping review
Creators: name: Pirie, Jonathan
name: Amant, Lisa St.
name: Takahashi, Susan Glover
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 2: Supplement B: Sample Search Strategy.
Additional file 3 of Managing residents in difficulty within CBME residency educational systems: a scoping review
Creators: name: Pirie, Jonathan
name: Amant, Lisa St.
name: Takahashi, Susan Glover
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 3: Supplement C: List of Abstracting Criteria and their Descriptions.
Three identical bosons: Properties in non-integer dimensions and in external fields
Creators: name: Garrido, E.
name: Jensen, A. S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Nuclear Theory (nucl-th)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Three-body systems that are continuously squeezed from a three-dimensional (3D) space into a two-dimensional (2D) space are investigated. Such a squeezing can be obtained by means of an external confining potential acting along a single axis. However, this procedure can be numerically demanding, or even undoable, especially for large squeezed scenarios. An alternative is provided by use of the dimension $d$ as a parameter that changes continuously within the range $2\leq d \leq 3$. The simplicity of the $d$-calculations is exploited to investigate the evolution of three-body states after progressive confinement. The case of three identical spinless bosons with relative $s$-waves in 3D, and a harmonic oscillator squeezing potential is considered. We compare results from the two methods and provide a translation between them, relating dimension, squeezing length, and wave functions from both methods. All calculations are then possible entirely within the simpler $d$-method, but simultaneously providing the equivalent geometry with the external potential.
description: 13 pages, to be published in Physical Review Research
title: ODBC: how not to pull your hair out
Creators: name: Kristin, Sherrie
name: Guy, Laura
Publisher: name: Mountain Scholar
Year: 2013

description: Presented at the May 2013 meeting of the Ex Libris Users of North America Conference held in Athens, Georgia.
description: Presenter Sherrie Kristin is affiliated with Purdue University Calumet.
description: Oracle ODBC driver installs will be discussed on different platforms with different versions of Office. Peculiarities, little setting changes and issues will be addressed with solutions noted that have worked. If the network connection works we will be able to do a live demo on the install. Documentation will be provided for all tested platforms.
Gender Equality and Investments in Adolescents in the Rural Philippines
Creators: name: Bouis, Howarth E.
name: Palabrica-Costello, Marilou
name: Solon, Orville
name: Westbrook, Daniel
name: Limbo, Azucena B.
name: Bouis, Howarth E.
name: Palabrica-Costello, Marilou
name: Solon, Orville
name: Westbrook, Daniel
name: Limbo, Azucena B.
Publisher: name: Unknown
Year: 1998
Subjects: Consumer/Household Economics
Labor and Human Capital

description: For some time now researchers at IFPRI and else where have been studying how resources are allocated within house holds in developing countries and why it matters from a policy perspective. Many social and cultural factors, as well as economic considerations, influence house hold decisions about the allocation of time, income, assets, and other resources. The recently published IFPRI book, Intrahousehold Resource Allocation in Developing Countries: Models, Methods, and Policy, edited by Lawrence Haddad, John Hoddinott, and Harold Alderman, provides an excellent review of the key relationships and empirical evidence. Many studies have looked at the way resources are distributed to men, women, and especially to small children, but one age group within the family has been largely ignored: the adolescents. Adolescence is a crucial period in that teen agers can make major contributions to their families’ welfare through their labor and earnings, in and out side the household, but may sacrifice their own wishes and future well-being in the process if such contributions come at the expense of investments in their education. The research methodology in this report, combining regression analysis with ethnography, provides a lesson in how complementarities between methodological approaches can be exploited. For example, from the regression analysis one might conclude that boys leave school earlier than girls to earn money. However, close questioning of household members makes it clear that the reason many boys leave school is more cultural than economic. Poor parents with limited resources for education tend to direct those resources to the children who have a strong wish to go to school, more of ten girls than boys in the Philippine setting studied here. The research finds that parents are not unduly influenced by short-term needs and are ready to make substantial sacrifices in terms of current consumption in order to invest in their children’s future. The research also concludes that boys and girls in this rural area of the Philippines are generally treated equally, providing a contrast with other Asian settings where discrimination by gender is common.
p-Wave Interactions in Low-Dimensional Fermionic gases
Creators: name: Günter, Kenneth
name: Stöferle, Thilo
name: Moritz, Henning
name: Köhl, Michael
name: Esslinger, Tilman
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We study a spin-polarized degenerate Fermi gas interacting via a p-wave Feshbach resonance in an optical lattice. The strong confinement available in this system allows us to realize one- and two-dimensional gases and therefore to restrict the asymptotic scattering states of atomic collisions. When aligning the atomic spins along (or perpendicular to) the axis of motion in a one-dimensional gas, scattering into channels with the projection of the angular momentum of |m|=1 (or m=0) can be inhibited. In two and three dimensions we observe the doublet structure of the p-wave Feshbach resonance. Both for the one-dimensional and the two-dimensional gas we find a shift of the position of the resonance with increasing confinement due to the change in collisional energy. In a three-dimensional optical lattice the losses on the Feshbach resonance are completely suppressed.
Sources of Income Inequality and Poverty in Rural Pakistan
Creators: name: Adams, Richard H.
name: He, Jane J.
name: Adams, Richard H.
name: He, Jane J.
Publisher: name: Unknown
Year: 1995
Subjects: subject: Food Security and Poverty
subject: Income distribution
subject: Pakistan
subject: rural poor

description: Throughout the developing world, policy makers are interested in devising new strategies for improving income distribution and reducing poverty. In large part, the choice of such strategies depends on an improved understanding of the sources of income inequality. Why do certain types of incomes go to different set of people? And what roles do variables such as education and migration play in improving income distribution and in lifting people out of poverty? This work attempts to answer these questions for rural Pakistan by analyzing a three-year panel data set collected in collaboration with four research institutes in Pakistan. This extensive series of household interviews enables the authors to examines many dynamic income-related issues that cannot be adequately addressed suing cross-sectional data. By analyzing the contribution of more than 30 different sources of income to income inequality, and by examining how various family characteristics- such as education and migration- affect the movements of households into and out of poverty, the author is able to shed new light on a variety of income-related issues. The report is part if a wide-ranging series of IFPRI studies focused on Pakistan. The first IFPRI study based on this three-year panel data is Poverty, Household Food Security, and Nutrition in Rural Pakistan, Research Report 96. Other studies are planned in the areas in the areas of rural credits, human capital accumulation, and water management. Earlier IFPRI collaborative work in Pakistan included macroeconomic studies such as Effects of Exchange Rate and Trade Policies on Agriculture in Pakistan, Research Report 84, and The Demand for public storage of when in Pakistan, Research Report 77. All of these studies were part of a Food Security Management Project jointly undertaken by IFPRI, the government of Pakistan, and the U.S. Agency for International Development (USAID) Mission in Pakistan.
Counting Nambu-Goldstone modes of higher-form global symmetries
Creators: name: Hidaka, Yoshimasa
name: Hirono, Yuji
name: Yokokura, Ryo
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We discuss the counting of Nambu-Goldstone (NG) modes associated with the spontaneous breaking of higher-form global symmetries. Effective field theories of NG modes are developed based on symmetry breaking patterns, using a generalized coset construction for higher-form symmetries. We derive a formula of the number of gapless NG modes, which involves expectation values of the commutators of conserved charges, possibly of different degrees.
description: 7 pages, no figure
Constraint damping in the Z4 formulation and harmonic gauge
Creators: name: Gundlach, Carsten
name: Martin-Garcia, Jose M.
name: Calabrese, Gioel
name: Hinder, Ian
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show that by adding suitable lower-order terms to the Z4 formulation of the Einstein equations, all constraint violations except constant modes are damped. This makes the Z4 formulation a particularly simple example of a lambda-system as suggested by Brodbeck et al. We also show that the Einstein equations in harmonic coordinates can be obtained from the Z4 formulation by a change of variables that leaves the implied constraint evolution system unchanged. Therefore the same method can be used to damp all constraints in the Einstein equations in harmonic gauge.
description: Extended derivation of damping mechanism
ASSESSING THE IMPORTANCE OF APPLE ATTRIBUTES: AN AGRICULTURAL APPLICATION OF CONJOINT ANALYSIS
Creators: name: Manalo, Alberto B.
name: Manalo, Alberto B.
Publisher: name: Unknown
Year: 1990
Subjects: Food Consumption/Nutrition/Food Safety

description: The use of conjoint analysis in assessing consumers' preferences for attributes is demonstrated with the apple as an example. Conjoint analysis may be used to estimate the importance of attributes and attribute levels through decomposition of consumers' ranking of alternative attribute combinations. It is shown that conjoint analysis provides results that may not be obtained from a survey where respondents are asked to directly state their assessment of the importance of attributes.
Spatial solitons and modulational instability in the presence of large birefringence: the case of highly non-local liquid crystal
Creators: name: Conti, Claudio
name: Peccianti, Marco
name: Assanto, Gaetano
Publisher: name: arXiv
Year: 2005
Subjects: subject: Optics (physics.optics)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: With reference to spatially non-local nematic liquid crystals, we develop a theory of optical spatial solitons and modulational instability in anisotropic media with arbitrarily large birefringence. Asymmetric spatial profiles and multivalued features are predicted for self-localized light versus walk-off angle. The results hold valid for generic self-focusing birefringent media and apply to large angle steering of individual and multiple self-trapped optical beams.
description: 4 pages, 4 figures
Analytic solution of the SEIR epidemic model via asymptotic approximant
Creators: name: Weinstein, Steven J.
name: Holland, Morgan S.
name: Rogers, Kelly E.
name: Barlow, Nathaniel S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: An analytic solution is obtained to the SEIR Epidemic Model. The solution is created by constructing a single second-order nonlinear differential equation in $\ln S$ and analytically continuing its divergent power series solution such that it matches the correct long-time exponential damping of the epidemic model. This is achieved through an asymptotic approximant (Barlow et. al, 2017, Q. Jl Mech. Appl. Math, 70 (1), 21-48) in the form of a modified symmetric Padé approximant that incorporates this damping. The utility of the analytical form is demonstrated through its application to the COVID-19 pandemic.
description: original version had substantial text overlap with arXiv:2004.07833; this is now less so
THE PROFITABILITY OF SUSTAINABLE AGRICULTURE ON A REPRESENTATIVE GRAIN FARM IN THE MID-ATLANTIC REGION, 1981-89
Creators: name: Peters, Steven E.
name: Janke, Rhonda R.
name: Johnson, Dale M.
name: Hanson, James C.
name: Peters, Steven E.
name: Janke, Rhonda R.
name: Johnson, Dale M.
name: Hanson, James C.
Publisher: name: Unknown
Year: 1990
Subjects: Crop Production/Industries
Environmental Economics and Policy

description: A long-term whole-farm analysis compared conventional and low-input farming systems. Data from a nine-year agronomic study at the Rodale Research Farm, Kutztown, Pennsylvania, were used to analyze profitability, liquidity, solvency, and risk on a representative commercial grain farm. Conventional and low-input farms participating in government programs are the most profitable scenarios, followed by conventional and low-input farms not participating in government programs. All farms increased their net worth. The low-input approach is advantageous for risk-averse farmers using a safety-first criterion.
Investigation of problems created in SPECT images by artifacts in the attenuation map and correction methods
Creators: name: Chang, Zheng
Publisher: name: University of British Columbia
Year: 2009

description: This thesis consists of five chapters. Chapter 1 presents the basic ideas of SPECT imaging. This chapter also explains the phenomenon of attenuation and shows how the attenuation effect affects SPECT imaging. Chapter 2 reviews various attenuation estimation methods and attenuation compensation methods. The advantages and disadvantages of these methods are discussed in this chapter. Moreover, this chapter discusses three artifacts such as missing counts, truncation and cross-talk effect, and their corrections. Additionally, this chapter presents three map reconstruction methods: FBP, OSEM and OSTGS. OSTGS has been tested by using computer simulations described in Chapter 3. Chapter 3 presents transmission simulations performed analytically. The analytical transmission simulations can be used to simulate simultaneous transmission /emission data acquisition by combining Monte Carlo SLMSET emission simulations. Different reconstruction methods have been tested in this computer simulation and the thorax phantom experiment described in Chapter 4. The results of these tests indicate that the cross-talk correction performance achieved by using OSTGS is better than that achieved by using conventional subtraction cross-talk correction. Finally, a summary is presented in Chapter 5 in which three topics for future work are being discussed.
Binary Black Holes at the Core of Galaxy Clusters
Creators: name: Soker, Fabio Pizzolato Noam
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper we push forward and exploit an analogy between the morphologies of the X-ray cavities observed in some galaxy clusters, and the optically deficient point-symmetric bubbles occurring in some planetary nebulae (PNe). Point-symmetric PNe are thought to be shaped by stellar binary interactions; namely, the presence of a companion to the PN's progenitor star is required. We suggest that similar point-symmetric structures in the X-ray cavities of galaxy clusters might be associated with the presence of massive binary black holes. A systematic cataloguing of high-resolution images of the diffuse X-ray emission at the core of galaxy clusters might contribute to individuate massive binary black holes.
description: Accepted for publication in "Advances in Space Research" (Proceedings of the 35th COSPAR Assembly 2004; Session "New Insights from XMM-Newton, Chandra and INTEGRAL")
DICHOTOMOUS-CHOICE, CONTINGENT-VALUATION QUESTIONS: FUNCTIONAL FORM IS IMPORTANT
Creators: name: Boyle, Kevin J.
name: Boyle, Kevin J.
Publisher: name: Unknown
Year: 1990
Subjects: Research Methods/ Statistical Methods

description: A variety of questioning formats have been used in contingent-valuation studies, with dichotomous-choice questions becoming the preferred format. However, as with any empirical technique, continued applications raise questions that require attention if the credibility of the procedure is to be maintained. It is shown that estimated Hicksian surplus can be substantially affected by the selection of a functional form when analyzing responses to dichotomous-choice questions. Given that theory, intuition, and empiricism all play a role in developing these estimates, several maxims are suggested for evaluating and/or mitigating such effects in future studies.
Additional file 1 of Managing residents in difficulty within CBME residency educational systems: a scoping review
Creators: name: Pirie, Jonathan
name: Amant, Lisa St.
name: Takahashi, Susan Glover
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1:Supplement A: References of Articles Reviewed.