cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Entanglement and complexity of interacting qubits subject to asymmetric noise
Creators: name: Kapit, Eliot
name: Roushan, Pedram
name: Neill, Charles
name: Boixo, Sergio
name: Smelyanskiy, Vadim
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The simulation complexity of predicting the time evolution of delocalized many-body quantum systems has attracted much recent interest, and simulations of such systems in real quantum hardware are promising routes to demonstrating a quantum advantage over classical machines. In these proposals, random noise is an obstacle that must be overcome for a faithful simulation, and a single error event can be enough to drive the system to a classically trivial state. We argue that this need not always be the case, and consider a modification to a leading quantum sampling problem-- time evolution in an interacting Bose-Hubbard chain of transmon qubits [Neill et al, Science 2018] -- where each site in the chain has a driven coupling to a lossy resonator and particle number is no longer conserved. The resulting quantum dynamics are complex and highly nontrivial. We argue that this problem is harder to simulate than the isolated chain, and that it can achieve volume-law entanglement even in the strong noise limit, likely persisting up to system sizes beyond the scope of classical simulation. Further, we show that the metrics which suggest classical intractability for the isolated chain point to similar conclusions in the noisy case. These results suggest that quantum sampling problems including nontrivial noise could be good candidates for demonstrating a quantum advantage in near-term hardware.
description: 20 pages, 15 figures
Age-Related Effects on Cross-Modal Duration Perception: Supplementary Material
Creators: name: Scurry, Alexandra N.
name: Dutcher, Dustin
name: Werner, John S.
name: Jiang, Fang
Publisher: name: Brill Online
Year: 2019
Subjects: subject: 170112 Sensory Processes, Perception and Performance
subject: FOS: Psychology

description: Reliable duration perception of external events is necessary to coordinate perception with action, precisely discriminate speech, and for other daily functions. Visual duration perception can be heavily influenced by concurrent auditory signals; however, age-related effects on this process have received minimal attention. In the present study, we examined the effect of aging on duration perception by quantifying (1) duration discrimination thresholds, (2) auditory temporal dominance, and (3) visual duration expansion/compression percepts induced by an accompanying auditory stimulus of longer/shorter duration. Duration discrimination thresholds were significantly greater for visual than auditory tasks in both age groups, however there was no effect of age. While the auditory modality retained dominance in duration perception with age, older adults still performed worse than young adults when comparing durations of two target stimuli (e.g., visual) in the presence of distractors from the other modality (e.g., auditory). Finally, both age groups perceived similar visual duration compression, whereas older adults exhibited visual duration expansion over a wider range of auditory durations compared to their younger counterparts. Results are discussed in terms of multisensory integration and possible decision strategies that change with age.
Gimnocheta Rondani 1859
Creators: name: O'Hara, James E.
name: Cerretti, Pierfilippo
name: Pape, Thomas
name: Evenhuis, Neal L.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Tachinidae
Gimnocheta

description: 220. Gimnocheta Rondani, 1859b: 80.
 CURRENT STATUS: Unjustified emendation of Gymnocheta Robineau-Desvoidy, 1830; junior synonym of Gymnocheta Robineau-Desvoidy, 1830. New synonymy.
FAMILY: TACHINIDAE.
REMARKS: Name made available as an emendation by virtue of similar spelling changes in two or more names from “y” to “i” in the same work.
description: Published as part of O'Hara, James E., Cerretti, Pierfilippo, Pape, Thomas & Evenhuis, Neal L., 2011, 3141, pp. 1-268 in Zootaxa 3141 on page 88
Light scattering by an elongated particle: spheroid versus infinite cylinder
Creators: name: Voshchinnikov, N V
name: Farafonov, V G
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using the method of separation of variables and a new approach to calculations of the prolate spheroidal wave functions, we study the optical properties of very elongated (cigar-like) spheroidal particles. A comparison of extinction efficiency factors of prolate spheroids and infinitely long circular cylinders is made. For the normal and oblique incidence of radiation, the efficiency factors for spheroids converge to some limiting values with an increasing aspect ratio a/b provided particles of the same thickness are considered. These values are close to, but do not coincide with the factors for infinite cylinders. The relative difference between factors for infinite cylinders and elongated spheroids ($a/b \ga 5$) usually does not exceed 20 % if the following approximate relation between the angle of incidence $α(in degrees)$ and the particle refractive index m=n+ki takes the place: $α\ga 50 |m-1| + 5$ where $1.2 \la n \la 2.0$ and $k \la 0.1$. We show that the quasistatic approximation can be well used for very elongated optically soft spheroids of large sizes.
description: 12 pages, 7 figures, Accepted by Measurement Science and Technology (special OPC issue)
Dielectric loss extraction for superconducting microwave resonators
Creators: name: McRae, C. R. H.
name: Lake, R. E.
name: Long, J. L.
name: Bal, M.
name: Wu, X.
name: Jugdersuren, B.
name: Metcalf, T. H.
name: Liu, X.
name: Pappas, D. P.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: The investigation of two-level-state (TLS) loss in dielectric materials and interfaces remains at the forefront of materials research in superconducting quantum circuits. We demonstrate a method of TLS loss extraction of a thin film dielectric by measuring a lumped element resonator fabricated from a superconductor-dielectric-superconductor trilayer. We extract the dielectric loss by formulating a circuit model for a lumped element resonator with TLS loss and then fitting to this model using measurements from a set of three resonator designs: a coplanar waveguide resonator, a lumped element resonator with an interdigitated capacitor, and a lumped element resonator with a parallel plate capacitor that includes the dielectric thin film of interest. Unlike other methods, this allows accurate measurement of materials with TLS loss lower than $10^{-6}$. We demonstrate this method by extracting a TLS loss of $1.02 \times 10^{-3}$ for sputtered $\mathrm{Al_2O_3}$ using a set of samples fabricated from an $\mathrm{Al/Al_2O_3/Al}$ trilayer. We observe a difference of 11$\%$ between extracted loss of the trilayer with and without the implementation of this method.
Nonunitary neutrino mixing matrix and CP violating neutrino oscillations
Creators: name: Czakon, M.
name: Gluza, J.
name: Zralek, M.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the standard approach to the neutrino oscillations a unitary relation among weak and mass eigenstates of light neutrinos is imposed. However, in many extensions of the SM left-handed, active neutrinos mix with additional heavy neutrino states. Consequences of this additional mixing, driven by experimental constraints, on the neutrino oscillations are considered.
description: 10 pages, 4 figs, presented at the XXV International Conference on Theoretical Physics ``Particle Physics and Astrophysics in the Standard Model and Beyond, Ustron, Poland, September 2001
Lorentz Invariance of the Pure Spinor BRST Cohomology for the Superstring
Creators: name: Berkovits, Nathan
name: Chandia, Osvaldo
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In a previous paper, the BRST cohomology in the pure spinor formalism of the superstring was shown to coincide with the light-cone Green-Schwarz spectrum by using an SO(8) parameterization of the pure spinor. In this paper, the SO(9,1) Lorentz generators are explicitly constructed using this SO(8) parameterization, proving the Lorentz invariance of the pure spinor BRST cohomology.
description: 9 pages harvmac tex
Gaining interprofessional knowledge and interprofessional competence on a training ward
Creators: name: Mette, Mira
name: Baur, Christina
name: Hinrichs, Jutta
name: Narciß, Elisabeth
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Cell Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Since 2017, interprofessional training wards have been established in Germany. On these wards, different health professions collaboratively provide patient care supervised by facilitators from the background. We investigated the gains in interprofessional knowledge and interprofessional competence reported after the mandatory placements on Mannheim’s Interprofessional Training Ward MIA. We also compared these levels of knowledge and competence at the end of the placement with control groups. In a quasi-randomized controlled study, we used a questionnaire to collect self-reported data on the interprofessional learning outcome. We used t-tests to compare (a) pretest and posttest data in the experimental group and (b) the levels of interprofessional knowledge and competence between the experimental and control groups. The results confirmed that the MIA participants perceived a significant increase in interprofessional knowledge and competence during the placement on the training ward. MIA participants also reported significantly higher levels of interprofessional knowledge and competence than the control groups. Placements on an interprofessional training ward make it possible to experience and practise interprofessional collaboration in real patient care. They help to prepare all future health professionals to assume their professional role in an interprofessional team to provide the best possible patient care.
Multipartite Greenberger-Horne-Zeilinger paradoxes for continuous variables
Creators: name: Massar, Serge
name: Pironio, Stefano
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show how to construct Greenberger-Horn-Zeilinger type paradoxes for continuous variable systems. We give two examples corresponding to 3 party and 5 party paradoxes. The paradoxes are revealed by carrying out position and momentum measurements. The structure of the quantum states which lead to these paradoxes is discussed.
description: to appear in the book ``Quantum Information Theory with Continuous Variables'', edited by A.K.Pati and Samuel L.Braunstein
Multiple scattering of polarized radiation by non-spherical grains: first results
Creators: name: Wolf, S.
name: Voshchinnikov, N. V.
name: Henning, Th.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first numerical radiative transfer simulation of multiple light scattering in dust configurations containing aligned non-spherical (spheroidal) dust grains. Such models are especially important if one wants to explain the circular polarization of light, observed in a variety of astronomical objects. The radiative transfer problem is solved on the basis of the Monte Carlo method. Test simulations, confirming the correct numerical implementation of the scattering mechanism, are presented. As a first application, we investigate the linear and circular polarization of light coming from a spherical circumstellar shell. This shell contains perfectly aligned prolate or oblate spheroidal grains. The most remarkable features of the simulated linear polarization maps are so-called polarization null points where the reversal of polarization occurs. They appear in the case when the grain alignment axis is perpendicular to the line of sight. The maps of circular polarization have a sector-like structure with maxima at the ends of lines inclined to the grain alignment axis by $\pm 45\degr$.
description: 13 pages, 14 figures, accepted by A&A
Riccia bifurca Hoffm.
Creators: name: Ros, Rosa M.
name: Olaf, Susana Rams
name: Eloy, Olaf Werner
name: Cerón, Eloy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Plantae
Marchantiophyta
Marchantiopsida
Marchantiales
Ricciaceae
Riccia
Riccia bifurca

description: Riccia bifurca Hoffm.
RECORDS. — Corbière (1904), Trabut (1941), Jelenc (1955a): La Bouzaréah, près Alger, 200 m. Corbière (1905): Environs de Constantine, Djebel Ouach, 900 m. Chevassut & Quézel (1956): La Rassauta; La Réghaïa. Jovet-Ast (1986), Bischler (2004): sine loco. Rare.
description: Published as part of Ros, Rosa M., Olaf, Susana Rams, Eloy, Olaf Werner & Cerón, Eloy, 2024, Revisiting the Bryophyte Checklist of Algeria: Exploring Diversity and Distribution, pp. 49-116 in Cryptogamie, Bryologie 20 (5) on page 60, DOI: 10.5252/cryptogamie-bryologie2024v45a5, http://zenodo.org/record/14593891
Comparison of Phase Space Slicing and Dipole Subtraction Methods for gamma^* -> Q Qbar
Creators: name: Eynck, Tim Oliver
name: Laenen, Eric
name: Phaf, Lukas
name: Weinzierl, Stefan
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compare the phase space slicing and dipole subtraction methods in the computation of the inclusive and differential next-to-leading order cross sections for heavy quark production in the simple process gamma^* -> Q Qbar. For the phase space slicing method we study the effects of improvement terms that remove restrictions on the slicing parameter s_min. For the dipole method our comparison is a first check on some of its counterterms involving massive quarks, derived recently. In our comparison we address issues such as numerical accuracy and efficiency.
description: 14 pages, 7 figures, 2 tables, additional references and comments added
HD 99458: First time ever Ap-type star as a $δ$ Scuti pulsator in a short period eclipsing binary?
Creators: name: Skarka, M.
name: Kabáth, P.
name: Paunzen, E.
name: Fedurco, M.
name: Budaj, J.
name: Dupkala, D.
name: Krtička, J.
name: Hatzes, A.
name: Pribulla, T.
name: Parimucha, Š.
name: Mikulášek, Z.
name: Guenther, E.
name: Sabotta, S.
name: Blažek, M.
name: Dvořáková, J.
name: Hambálek, L.
name: Klocová, T.
name: Kollár, V.
name: Kundra, E.
name: Šlechta, M.
name: Vaňko, M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the discovery of a unique object, a chemically peculiar Ap-type star showing $δ$ Scuti pulsations which is bound in an eclipsing binary system with an orbital period shorter than 3 days. HD 99458 is, therefore, a complex astrophysical laboratory opening doors for studying various, often contradictory, physical phenomena at the same time. It is the first Ap star ever discovered in an eclipsing binary. The orbital period of 2.722 days is the second shortest among all known chemically peculiar (CP2) binary stars. Pulsations of $δ$ Scuti type are also extremely rare among CP2 stars and no unambiguously proven candidate has been reported. HD 99458 was formerly thought to be a star hosting an exoplanet, but we definitely reject this hypothesis by using photometric observations from the K2 mission and new radial velocity measurements. The companion is a low-mass red dwarf star ($M_{2}=0.45(2)$ M$_{\odot}$) on an inclined orbit ($i=73.2(6)$ degrees) that shows only grazing eclipses. The rotation and orbital periods are synchronized, while the rotation and orbital axes are misaligned. HD 99458 is an interesting system deserving of more intense investigations.
description: 8 pages, 4 figures, 4 tables, accepted in MNRAS
The Optical Identification of the X-ray Burster X1746-370 in the Globular Cluster NGC6441
Creators: name: Homer, L.
name: Anderson, Scott F.
name: Margon, Bruce
name: Downes, Ronald A.
name: Deutsch, Eric W.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We find convincing observational evidence to confirm the optical identification of the X-ray burster X1746-370 located in the globular cluster NGC6441. Chandra/HRC-I imaging yields a much improved X-ray position for the source, which we show to be fully consistent with our rederived position of a UV-excess star, U1, in the same astrometric reference frame. In addition, the smaller Chandra X-ray error circle excludes the only other blue stars previously identified in the old Einstein circle. We have also obtained Hubble Space Telescope/STIS time-resolved optical spectra of star U1. Although there are no strong line features, the flux distribution demonstrates U1 to be unusually bright in the blue and faint in the red, consistent with earlier WFPC2 photometry. More notably, the flux level of the continuum is seen to vary significantly compared to stars of similar brightness. Indeed, the lightcurve can plausibly be fit by a 5.73 hr period sinusoid, which is the period of the recurring X-ray dips seen in this source. The presence of modulations in both wavelengths strengthens the case for an orbital origin, and therefore deepens the puzzle of the unusual energy independent X-ray dips. Lastly, we note that X1746-370 remains the longest period confirmed X-ray burster in a globular cluster, and the only one with a period typical of the galactic population as a whole.
description: 8 pages, 3 figures, revised version with minor changes; accepted for publication in AJ
Gimnomera Rondani 1866
Creators: name: O'Hara, James E.
name: Cerretti, Pierfilippo
name: Pape, Thomas
name: Evenhuis, Neal L.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Scathophagidae
Gimnomera

description: 221. Gimnomera Rondani, 1866b: 4, 21 [1867a: 88, 105].
 ORIGINALLY INCLUDED SPECIES: Cordilura tarsea Fallén, 1819 (as “ Cordylura Tarsea Fall. ”).
 TYPE SPECIES: Cordilura tarsea Fallén, 1819 (as “ Cordylura Tarsea Fall. ”), by original designation.
 CURRENT STATUS: Valid genus [teste Gorodkov (1986: 35)].
FAMILY: SCATHOPHAGIDAE.
 REMARKS: There are two original spellings of this genus-group name in Rondani (1866b): Gimnomera (pages 4, 21) and Gymnomera (page 51). Acting as First Reviser, Vockeroth in Huckett & Vockeroth (1965: 840) selected Gimnomera as the correct original spelling. Gorodkov (1986: 35) incorrectly cited the journal version (Rondani 1867a: 88, 105) and “ Gymnomera ” as the original date and spelling for this genus.
description: Published as part of O'Hara, James E., Cerretti, Pierfilippo, Pape, Thomas & Evenhuis, Neal L., 2011, 3141, pp. 1-268 in Zootaxa 3141 on page 89
Phenomenology of $b\to cτ\barν$ decays in a scalar leptoquark model
Creators: name: Yan, Han
name: Yang, Ya-Dong
name: Yuan, Xing-Bo
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: During the past few years, hints of Lepton Flavour Universality (LFU) violation have been observed in $b \to c τ\barν$ and $b \to s \ell^+ \ell^-$ transitions. Recently, the $D^*$ and $τ$ polarization fractions $P_L^{D^*}$ and $P_L^τ$ in $B \to D^* τ\barν$ decay have also been measured by the Belle collaboration. Motivated by these intriguing results, we revisit the $R_{D^{(*)}}$ and $R_{K^{(*)}}$ anomalies in a scalar leptoquark (LQ) model, in which two scalar LQs, one being $SU(2)_L$ singlet and the other $SU(2)_L$ triplet, are introduced simultaneously. We consider five $b \to c τ\barν$ mediated decays, $B \to D^{(*)}τ\barν$, $B_c \to η_c τ\barν$, $B_c \to J/ψτ\barν$, and $Λ_b \to Λ_c τ\barν$, and focus on the LQ effects on the $q^2$ distributions of the branching fractions, the LFU ratios, and the various angular observables in these decays. Under the combined constraints by the available data on $R_{D^{(*)}}$, $R_{J/ψ}$, $P_L^τ(D^*)$, and $P_L^{D^*}$, we perform scans for the LQ couplings and make predictions for a number of observables. It is found numerically that both the differential branching fractions and the LFU ratios are largely enhanced by the LQ effects, with the latter being expected to provide testable signatures at the SuperKEKB and High-Luminosity LHC experiments.
description: 35 pages, 5figures
Classical Spectral Curve of the AdS_5 x S^5 Lambda Superstring
Creators: name: Hollowood, Timothy J.
name: Miramontes, J. Luis
name: Price, Dafydd
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The classical spectral curve for the worldsheet theory of the AdS_5 x S^5 lambda superstring is constructed. The lambda string is interpreted as a regularized, non-abelian T dual of the AdS_5 x S^5 superstring with respect to full PSU(2,2|4) symmetry. The form of the curve is identified as the semi-classical limit of a set of Bethe ansatz equations for an XXZ type spin chain for the supergroup PSU(2,2|4) in contrast to the string in AdS_5 x S^5 which is XXX type.
description: 45 pages, numerous improvements, version accepted for publication
A SWOT analysis of Italian medical curricular adaptations to the COVID-19 pandemic: A nationwide survey of medical school leaders
Creators: name: Consorti, Fabrizio
name: Kanter, Steven L.
name: Basili, Stefania
name: Ming-Jung Ho
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: There is a growing literature on how medical education adapts to the COVID-19 pandemic. However, there is a need to examine the facilitators and barriers of these adaptations. This study explores the strengths, weaknesses, opportunities, and threats (SWOT) of how Italian medical schools adapted their curricula to the COVID −19 pandemic. The authors conducted an online survey of directors of medical curricula in Italy. Free-text responses to open-ended questions about curricular adaptations and reflections on these adaptations were analysed using qualitative thematic analysis. Twenty out of 60 Italian medical school directors completed the survey. Strengths identified were rapid responses and a spirit of cooperation. Weaknesses included dependency on clinical facilities, teachers’ limited skills to use technology, and lack of mental health support for staff. Opportunities highlighted were clear government rules, new ways of teaching and a renewed focus on underrepresented topics. Threats expressed included impaired relationships, difficulties related to online assessment, lack of IT access, and legal and insurance issues. This study, in documenting the curricular adaptations of Italian medical schools during an active global pandemic, and recording the perspectives of medical education leaders, offers important lessons for the future.
Cosmic Rays and Large Extra Dimensions
Creators: name: Kazanas, D.
name: Nicolaidis, A.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have proposed that the cosmic ray spectrum "knee", the steepening of the cosmic ray spectrum at energy $E \gsim 10^{15.5}$ eV, is due to "new physics", namely new interactions at TeV cm energies which produce particles undetected by the experimental apparatus. In this letter we examine specifically the possibility that this interaction is low scale gravity. We consider that the graviton propagates, besides the usual four dimensions, into an additional $δ$, compactified, large dimensions and we estimate the graviton production in $p p$ collisions in the high energy approximation where graviton emission is factorized. We find that the cross section for graviton production rises as fast as $(\sqrt{s}/M_f)^{2+δ}$, where $M_f$ is the fundamental scale of gravity in $4+δ$ dimensions, and that the distribution of radiating a fraction $y$ of the initial particle's energy into gravitational energy (which goes undetected) behaves as $δy^{δ-1}$. The missing energy leads to an underestimate of the true energy and generates a break in the {\sl inferred} cosmic ray spectrum (the "kne"). By fitting the cosmic ray spectrum data we deduce that the favorite values for the parameters of the theory are $M_f \sim 8$ TeV and $δ=4$.
description: 8 pages, 1 figure
Riccia canaliculata Hoffm.
Creators: name: Ros, Rosa M.
name: Olaf, Susana Rams
name: Eloy, Olaf Werner
name: Cerón, Eloy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Plantae
Marchantiophyta
Marchantiopsida
Marchantiales
Ricciaceae
Riccia
Riccia canaliculata

description: Riccia canaliculata Hoffm.
RECORDS. — Corbière (1904), Jelenc (1955a): Le Corso. Jovet-Ast (1986): sine loco. Very rare.
description: Published as part of Ros, Rosa M., Olaf, Susana Rams, Eloy, Olaf Werner & Cerón, Eloy, 2024, Revisiting the Bryophyte Checklist of Algeria: Exploring Diversity and Distribution, pp. 49-116 in Cryptogamie, Bryologie 20 (5) on page 60, DOI: 10.5252/cryptogamie-bryologie2024v45a5, http://zenodo.org/record/14593891
Single Photons on Pseudo-Demand from Stored Parametric Down-Conversion
Creators: name: Pittman, T. B.
name: Jacobs, B. C.
name: Franson, J. D.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We describe the results of a parametric down-conversion experiment in which the detection of one photon of a pair causes the other photon to be switched into a storage loop. The stored photon can then be switched out of the loop at a later time chosen by the user, providing a single photon for potential use in a variety of quantum information processing applications. Although the stored single photon is only available at periodic time intervals, those times can be chosen to match the cycle time of a quantum computer by using pulsed down-conversion. The potential use of the storage loop as a photonic quantum memory device is also discussed.
description: 8 pages, 7 Figs., RevTex
Additional file 4: of Transcriptome analysis of Valsa mali reveals its response mechanism to the biocontrol actinomycete Saccharothrix yanglingensis Hhs.015
Creators: name: Liu, Cong
name: Fan, Dongying
name: Li, Yanfang
name: Chen, Yue
name: Huang, Lili
name: Yan, Xia
Publisher: name: figshare
Year: 2018
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Developmental Biology

description: Figure S2. GO classification of Vm. The y-axis indicates the GO term at level 2 of genes for Vm, and the x-axis indicates the number of genes. (PDF 5 kb)
The clinical educator’s guide to fostering learner motivation: AMEE Guide No. 137
Creators: name: Lyons, Kayley M.
name: Cain, Jeff J.
name: Haines, Stuart T.
name: Gasevic, Danijela
name: Brock, Tina P.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Science Policy

description: Motivation theory and research remain underused by health professions educators. Some educators say it can seem too abstract. To address this, we applied health care language to learner motivation theories. Using a familiar metaphor, we examined the indications, mechanism of action, administration, and monitoring of learner motivation interventions. Similar to the treatment monographs in medicine compendia, we summarized each motivation intervention in the form of a monograph. The purpose of this guide is for health professions educators to develop an understanding of when (i.e. indication) and how (i.e. mechanism of action) learner motivation interventions work. With this information, they can then access ready-to-implement strategies (i.e. administration) to increase their learner interest and assess the effects of these interventions (i.e. monitoring).
Velocities of flare kernels and the mapping norm of field line connectivity
Creators: name: Lörinčík, Juraj
name: Aulanier, Guillaume
name: Dudík, Jaroslav
name: Zemanová, Alena
name: Dzifčáková, Elena
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report on observations of flare ribbon kernels during the 2012 August 31 filament eruption. In the 1600\,Å and 304\,Å channels of the Atmospheric Imaging Assembly, flare kernels were observed to move along flare ribbons at velocities $v_\parallel$ of up to $450$ km\,s$^{-1}$. Kernel velocities were found to be roughly anti-correlated with strength of the magnetic field. Apparent slipping motion of flare loops was observed in the 131\,Å only for the slowest kernels moving through strong-$B$ region. In order to interpret the observed relation between $B_{\text{LOS}}$ and $v_\parallel$, we examined distribution of the norm $N$, a quantity closely related to the slippage velocity. We then calculated the norm $N$ of the quasi-separatrix layers (QSLs) in MHD model of a solar eruption adapted to the magnetic environment which qualitatively agrees to that of the observed event. We found that both the modelled $N$ and velocities of kernels reach their highest values in the same weak-field regions, one located in the curved part of the ribbon hook and the other in the straight part of the conjugate ribbon located close to a parasitic polarity. Oppositely, lower values of the kernel velocities are seen at the tip of the ribbon hook, where the modelled $N$ is low. Since the modelled distribution of $N$ matches the observed dynamics of kernels, this supports that the kernel motions can be interpreted as a signature of QSL reconnection during the eruption.
Welfare Effects of the U.S Food Safety Modernization Act Produce Safety Rule
Creators: name: Ferrier, Peyton
name: Zhen, Chen
name: Bovay, John
name: Ferrier, Peyton
name: Zhen, Chen
name: Bovay, John
Publisher: name: Unknown
Year: 2016
Subjects: Agricultural and Food Policy
Consumer/Household Economics
Food Consumption/Nutrition/Food Safety

description: The Produce Rules of the Food Safety Modernization Act (FSMA) marked the first instance of the FDA directly regulating food safety activities at the farm-level. Since most fruits and vegetables were covered, the law’s comprehensive ‘across-the-board’ implementation potentially created offsetting cross-price effects on the demand side since most producers would be bearing the implementation costs simultaneously. However, the fixed costs nature of some other regulations costs, the different distribution of farm sizes across commodities and the potential for some commodities to be exempted suggest that the effects would vary across commodities. We present an Equilibrium Displacement Model (EDM) to consider the effect of FSMA costs on prices and consumer and producer welfare. To parameterize the model, we use National Agricultural Statistics Service (NASS) and Food and Drug Administration (FDA) data to calculate the cost of implementing FSMA rules for 18 fruits and 21 vegetables, IRI storescan data to estimate demand elasticities, Agricultural Marketing Service data to calculate data wholesale costs shares, and supply elasticities from extant sources While varying across commodities, the average cost of implementing FSMA is 2.79 percent of farm revenue for fruits and 1.52 percent of farm revenue for vegetables, that farm prices increase by 1.68 percent (fruit) and 0.44 percent (vegetables), and that consumer prices increase by 0.70 percent (fruit) and 0.12 percent (vegetables). If there is no corresponding demand effect or cost saving at the farm level associated with the implementation of these regulations, farm welfare, as a percentage of revenue, falls by 1.11 percent (fruit) and 0.96 percent (vegetables). Also, we found that weak substitution patterns between commodities at the retail level caused off-setting cross-price effects to be weak.
(De)Constructing Dimensions and Non-commutative Geometry
Creators: name: Alishahiha, Mohsen
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper the model considered by Arkani-Hamed, Cohen and Georgi in the context of (de)constructing dimensions has been studied by making use of non-commutative geometry. The non-commutative geometry provides a natural framework to study this model with or without gravity.
description: 14 pages, latex; references added
Gimnosoma Rondani 1862
Creators: name: O'Hara, James E.
name: Cerretti, Pierfilippo
name: Pape, Thomas
name: Evenhuis, Neal L.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Tachinidae
Gimnosoma

description: 222. Gimnosoma Rondani, 1862d: 234.
 CURRENT STATUS: Unjustified emendation of Gymnosoma Meigen, 1803; junior synonym of Gymnosoma Meigen, 1803. New synonymy.
FAMILY: TACHINIDAE.
REMARKS: Name made available as an emendation by virtue of similar spelling changes in two or more names from “y” to “i” in the same work.
description: Published as part of O'Hara, James E., Cerretti, Pierfilippo, Pape, Thomas & Evenhuis, Neal L., 2011, 3141, pp. 1-268 in Zootaxa 3141 on page 89
The Agricultural Situation in the Far East and Oceania: Review of 1973 and Outlook for 1974
Creators: name: Asia Program Area, Foreign Demand
name: Asia Program Area, Foreign Demand
Publisher: name: Unknown
Year: 1974
Subjects: subject: Agricultural and Food Policy
subject: Crop Production/Industries
subject: International Relations/Trade
subject: Livestock Production/Industries
subject: Far East
subject: Oceania
subject: Asia
subject: economic situation
subject: agricultural production
subject: agricultural trade

description: Favorable weather led to increased agricultural output in most countries in the Far East and Oceania during 1973. Bangladesh, Thailand, India, and the Philippines showed the largest increases in agricultural production, while the Khmer Republic, New Zealand, and Sri Lanka had reduced output. Per capita food production also advanced in most countries. Rice production in the Far East totaled 117 million tons—up 11 percent from the drought-affected 1972 crop. Rice output increased in all the major rice-producing countries of the region. India's rice crop advanced 13 percent to a record 43.5 million tons, but was only slightly above the 1971 outturn. U.S. agricultural exports to the Far East and Oceania totaled $5.51 billion in 1973—up nearly 87 percent from the previous year, while U.S. agricultural imports from the region increased 37 percent to $2.28 billion. Continued high prices should enable U.S. farm exports to the Far East and Oceania to expand in 1974, although the rate of increase should be less rapid than in 1973.
Later is too late: Exploring student experiences of diversity and inclusion in medical school orientation
Creators: name: Van Buuren, Asia
name: Wid Yaseen
name: Veinot, Paula
name: Mylopoulos, Maria
name: Law, Marcus
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: While there is increasing effort among medical schools to recruit diverse students, there is a paucity of research into the unique experiences of these students during their transition to medicine. This study explored how experiences during medical school orientation influence students’ transition into the medical profession. Semi-structured interviews were conducted (April-August 2019) with 16 first-year Canadian medical students. We applied descriptive thematic analysis using a constant comparative approach. Verbatim transcripts were coded and analyzed to elucidate themes. Participants highlighted the importance of social orientation during their transition into medical school and noted experiencing complex social pressures during this time. They shared how incoming students were introduced to the dominant medical professional identity during orientation. Participants noted tensions during this period, many of which revolved around the dominant identity and their past, present and future selves. Longstanding issues of diversity and inclusion in medicine manifest from day one of medical school. While orientation may be intended as a transition period to welcome students into the profession, it is a crucial period for medical schools to intentionally establish a commitment to an inclusive culture. Waiting to do so after identity formation has already begun is a missed opportunity.
Overview of ANTARES, the first Mediterranean Sea telescope
Creators: name: Poirè, Chiara
Publisher: name: Zenodo
Year: 2024
Subjects: Neutrino Telescopes
Neutrinos
Astrophysics
Indirect Dark Matter Searches
Astrophysical Neutrinos
ANTARES

description: Parallel Talk presented at the XX International Workshop on Neutrino Telescopes - Venice 23-27 October 2023

 

Abstract:

The ANTARES neutrino telescope was located in the Mediterranean Sea, not far from Toulon (France). It was operational from 2007 to 2022, before being dismantled. Its instrumented volume of 0.01 km3 equipped with photomultipliers made it possible to detect neutrinos with energy from some GeV to PeV. The location of ANTARES allows for an advantageous view of the Southern sky in the search of Galactic neutrino sources. ANTARES has searched for a diffuse flux or individual sources of astrophysical neutrinos produced in cosmic-ray interactions, and also for the presence of dark matter in massive celestial objects from the annihilation or decay of dark matter into neutrinos. Furthermore, ANTARES has been involved in a multi-messenger program which included searching for neutrinos in coincidence with promising transient astrophysical events, as well as triggering electromagnetic followup observations of interesting neutrino candidates by sending alert messages to the astronomical community. ANTARES data allowed to study other topics, such as the search for relic massive magnetic monopoles and nuclearites, as well as the study of atmospheric neutrinos and neutrino oscillations. In this talk, the latest and principal ANTARES results, which cover the fields mentioned above, will be presented.
Strategic Interactions in Migration Decisions in Rural Mexico
Creators: name: Rojas Valdes, Ruben Irvin
name: Lin Lawell, C.-Y. Cynthia
name: Taylor, J. Edward
name: Rojas Valdes, Ruben Irvin
name: Lin Lawell, C.-Y. Cynthia
name: Taylor, J. Edward
Publisher: name: Unknown
Year: 2016
Subjects: subject: Labor and Human Capital
subject: Migration
subject: Mexico
subject: Strategic interactions

description: Given the economic significance of migration and its relevance for policy, it is important to understand the factors that cause people to migrate. We add to the literature on the determinants of migration by examining whether strategic interactions matter for migration decisions. There are several reasons why a household's migration decisions may depend on the migration decisions of its neighbors, including migration networks and information externalities. Using instrumental variables to address the endogeneity of neighbors' decisions, we empirically examine whether strategic interactions in migration decisions actually take place in rural Mexico, whether the interactions depend on the size of the village, and whether there are nonlinearities in the strategic interactions. Our results show that there is a significant and positive own migration strategic effect. In our base case specification, an increase of 0.1 in the fraction of neighbors with new migration to the US increases a household's probability of new migration to the US by around 13 percentage points, while an increase of 0.1 in the fraction of neighbors with new migration to other states within Mexico increases a household's probability of migration to other states within Mexico by around 9.5 percentage points. We also find that strategic interactions vary non-linearly with village size.
description: Paper #8994
Another step toward understanding the binding mode of other derivatives of [Ru(phen)2L] complexes
Creators: name: Dehkordi, Maryam Nejat
name: Lincoln, Per
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Cancer

description: Linear dichroism (LD), UV-Vis and fluorescence spectroscopy were used to investigate the interaction of the Δ- and Λ-enantiomers of the two complexes of [Ru(phen)2 2-phenylimidazophenanthroline]+2 (referred to as B-complex) and [Ru(phen)2 2-(1-pyrenyl)limidazophenanthroline]+2 (named as P-complex), with ct-DNA. Absorption titration experiments of the enantiomers showed significant hypochromism with red shift indicating a strong perturbation of the DNA on the intra-ligand (IL) and the metal-to-ligand charge transfer (MLCT) transitions of the complexes, and fluorescence titration curves indicate strong binding. LD spectra for the B-enantiomers bound to DNA were qualitatively similar to spectra for the well-studied intercalator [Ru(phen)2dppz]+2, indicating intercalation of the phenyl-imidazophenanthroline part of the complex. However, for Λ-P, the LD-spectrum resembled Δ-B, and Δ-P resembled Λ-B, indicating a mirror image relationship of the transition moment directions relative to the helix axis when going from B to P. For interpretation of the data, and clarifying the nature of the binding mode of the P-complexes, a model was proposed based on the crystal structure previously presented by the Cardin group. The reversed LD is suggested to be due to partial intercalation of the pyrene moiety, pushing the Ru(phen)2-moiety out from the opposite groove and allowing it to rotate anticlockwise around the pyrene-imidazole bond. Communicated by Ramaswamy H. Sarma
Non-Abelian Aharonov-Casher Phase Factor in Mesoscopic Systems
Creators: name: Avishai, Yshai
name: Totsuka, Keisuke
name: Nagaosa, Naoto
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The matrix-valued Aharonov-Casher phase factor $F_{\text{AC}}$ (related to the c-number Aharonov-Casher phase $λ_{\text{AC}}$) plays an important role in the physics of mesoscopic systems in which spin-orbit coupling is relevant. Yet, its relation to experimental observables is rather elusive. Based on the SU(2)-gauge-invariant formulation of the Schroedinger equation, we relate $F_{\text{AC}}$ to measurable quantities in electronic interferometers subject to electric fields that generate Rashba or Dresselhaus spin-orbit coupling. Specifically, we consider electron transmission through (i) a single-channel ring interferometer and (ii) a two-channel square interferometer. In both examples, we derive the closed expressions of the conductance and show them to be simple rational functions of the traceful part of $F_{\text{AC}}$. In the second case, we also derive a closed expression for the electron spin polarization vector and find it to be a simple function of both the traceful and traceless parts of $F_{\text{AC}}$. This analysis then suggests a direct way for an experimental access to this elusive quantity.
description: 20 pages, 11 figures
Riccia cavernosa Hoffm.
Creators: name: Ros, Rosa M.
name: Olaf, Susana Rams
name: Eloy, Olaf Werner
name: Cerón, Eloy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Plantae
Marchantiophyta
Marchantiopsida
Marchantiales
Ricciaceae
Riccia
Riccia cavernosa

description: Riccia cavernosa Hoffm.
RECORDS. — Trabut (1941), Jovet-Ast (1986): Sahara, à In-Salah (Massifs sahariens). Very rare.
COMMENT
It was not listed for Algeria by Ros et al. (1999, 2007a), but at least one report was made by Trabut (1941) as Riccia crystallina var. angustior Lindenb. Also, Bischler (2004) informed to it had been reported previously in Algeria. Rare.
description: Published as part of Ros, Rosa M., Olaf, Susana Rams, Eloy, Olaf Werner & Cerón, Eloy, 2024, Revisiting the Bryophyte Checklist of Algeria: Exploring Diversity and Distribution, pp. 49-116 in Cryptogamie, Bryologie 20 (5) on page 60, DOI: 10.5252/cryptogamie-bryologie2024v45a5, http://zenodo.org/record/14593891
Another step towards understanding the binding mode of other derivatives of [Ru(phen)2L] complexes
Creators: name: Dehkordi, Maryam Nejat
name: Lincoln, Per
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Cancer

description: Linear dichroism (LD), UV-vis and fluorescence spectroscopy was used to investigate the interaction of the Δ- and Λ- enantiomers of the two complexes of [Ru(phen)2 2-phenylimidazophenanthroline]+2 (referred to as B-complex) and [Ru(phen)2 2-(1-pyrenyl)limidazophenanthroline] +2 (named as P-complex), with ct-DNA. Absorption titration experiments of the enantiomers showed significant hypochromism with red shift indicating a strong perturbation of the DNA on the intra-ligand (IL) and the metal-to-ligand charge transfer (MLCT) transitions of the complexes, and fluorescence titration curves indicate strong binding. LD spectra for the B- enantiomers bound to DNA were qualitatively similar to spectra for the well-studied intercalator [Ru(phen)2dppz]+2, indicating intercalation of the phenyl-imidazophenanthroline part of the complex. However, for Λ-P the LD-spectrum resembled Δ-B, and Δ-P resembled Λ-B, indicating a mirror image relationship of the transition moment directions relative to the helix axis when going from B to P. For interpretation the data, and clarifying the nature of the binding mode of the P-complexes a model was proposed based on the crystal structure previously presented by the Cardin group. The reversed LD is suggested to be due to partial intercalation of the pyrene moiety, pushing the Ru(phen)2-moiety out from the opposite groove and allowing it to rotate anti-clockwise around the pyrene-imidazole bond.