cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Laser and Fourier transform spectroscopy of $^7$Li$^{88}$Sr
Creators: name: Schwanke, Erik
name: Knöckel, Horst
name: Pashov, Asen
name: Stein, Alexander
name: Ospelkaus, Silke
name: Tiemann, Eberhard
Publisher: name: arXiv
Year: 2017
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: LiSr was produced in a heat-pipe oven and its thermal emission spectrum around 9300 cm$^{-1}$ was recorded by a high resolution Fourier transform spectrometer. In addition, selected lines of the spectrum of deeply bound vibrational levels of the $1^2Σ^+$ and $2^2Σ^+$ states were studied using laser excitation to facilitate the assignment of the lines. The ground state could be described for $v^{\prime\prime} =$ 0 - 2, $N^{\prime\prime}$ up to 105 and the $2^2Σ^+$ state for $v^{\prime} = 0$ up to $N^\prime = 68$. For both states, Dunham coefficients, spin-rotation parameters and potential energy curves were evaluated. A coupling of the $2^2Σ^+$ state to the $1^2Π$ state was observed, allowing a local description with Dunham coefficients of the $1^2Π$ state and an approximate evaluation of the coupling strength.
description: 8 pages, 7 figures
Nodeless energy gaps of single-crystalline Ba0.68K0.32Fe2As2 as seen via 75As NMR
Creators: name: Li, Z.
name: Sun, D. L.
name: Lin, C. T.
name: Su, Y. H.
name: Hu, J. P.
name: Zheng, Guo-qing
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report $^{75}$As nuclear magnetic resonance studies on a very clean hole-doped single-crystal Ba$_{0.68}$K$_{0.32}$Fe$_{2}$As$_{2}$ ($T_{\rm {c}}=38.5$ K). The spin-lattice relaxation rate $1/T_{1}$ shows an exponential decrease below $T \simeq 0.45 T_{\rm c}$ down to $T \simeq 0.11 T_{\rm c}$, which indicates a fully opened energy gap. From the ratio $(T_{1})_{c} / (T_{1})_{a}$, where $a$ and $c$ denote the crystal directions, we find that the antiferromagnetic spin fluctuation is anisotropic in the spin space above $T_{\rm c}$. The anisotropy decreases below $T_{\rm c}$ and disappears at $T \rightarrow 0$. We argue that the anisotropy stems from spin-orbit coupling whose effect vanishes when spin-singlet electron pairs form with a nodeless gap.
description: 10 pages, 6 figures
Colimits of representable algebra-valued functors
Creators: name: Bergman, George M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 18A30, 18D35 (Primary) 06E15, 08C05, 18C05, 20M50, 20N02 (Secondary)

description: If C and D are varieties of algebras in the sense of general algebra, then by a representable functor C --> D we understand a functor which, when composed with the forgetful functor D --> Set, gives a representable functor in the classical sense; Freyd showed that these functors are determined by D-coalgebra objects of C. Let Rep(C,D) denote the category of all such functors, a full subcategory of Cat(C,D), opposite to the category of D-coalgebras in C. It is proved that Rep(C,D) has small colimits, and in certain situations, explicit constructions for the representing coalgebras are obtained. In particular, Rep(C,D) always has an initial object. This is shown to be "trivial" unless C and D either both have_no_ zeroary operations, or both have _more_than_one_ derived zeroary operation. In those two cases, the functors in question may have surprisingly opulent structures. It is also shown that every set-valued representable functor on C admits a universal morphism to a D-valued representable functor. Several examples are worked out in detail, and areas for further investigation noted.
description: 70 pages. Copy at http://math.berkeley.edu/~gbergman/papers
Competition and representation during memory retrieval: Roles of the prefrontal cortex and the posterior parietal cortex
Creators: name: Myeong-Ho  Sohn
name: Goode, Adam
name: V Andrew  Stenger
name: Carter, Cameron S
name: Anderson, John R.
Publisher: name: Carnegie Mellon University
Year: 2003
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: In this functional-MRI study we examined the hypothesis that the prefrontal cortex responds differently to the extent of competition during retrieval, whereas the parietal cortex is responsible for problem representation that should not be directly related to the competition. Participants mastered arbitrary person–location pairs, and their recognition memory was tested in a functional-MRI session. The pairs were constructed such that a person was associated with one, two, or three different locations and vice versa. The recognition time increased with the number of associations, reflecting increased competition. A confirmatory analysis of imaging data with prespecified prefrontal and parietal regions showed that, although both regions were highly involved during memory retrieval, only the prefrontal region responded to the levels of competition. This result was consistent with predictions of an information-processing model as well as with an exploratory identification of regions of interest.
title: The power spectrum of mass fluctuations measured from the Ly alpha forest at redshift z=2.5
Creators: name: Croft, RAC
name: Weinberg, DH
name: Pettini, M
name: Hernquist, L
name: Katz, N
Publisher: name: University of Massachusetts Amherst
Year: 1999
Subjects: subject: cosmology : observations
subject: large-scale structure of universe
subject: quasars : absorption lines
subject: Astrophysics and Astronomy

description: This is the pre-published version harvested from ArXiv. The published version is located at http://iopscience.iop.org/0004-637X/520/1/1/
description: We measure the linear power spectrum of mass-density fluctuations at redshift z = 2.5 from the Lyα forest absorption in a sample of 19 QSO spectra, using the method introduced by Croft et al. The P(k) measurement covers the range 2π/k ~ 450-2350 km s-1 (2-12 comoving h-1 Mpc for Ω = 1), limited on the upper end by uncertainty in fitting the unabsorbed QSO continuum and on the lower end by finite spectral resolution (0.8-2.3 Å FWHM) and by nonlinear dynamical effects. We examine a number of possible sources of systematic error and find none that are significant on these scales. In particular, we show that spatial variations in the UV background caused by the discreteness of the source population should have negligible effect on our P(k) measurement. We estimate statistical errors by dividing the data set into ten subsamples. The statistical uncertainty in the rms mass-fluctuation amplitude, σ [P(k)]1/2, is ~20%, and is dominated by the finite number of spectra in the sample. We obtain consistent P(k) measurements (with larger statistical uncertainties) from the high- and low-redshift halves of the data set, and from an entirely independent sample of nine QSO spectra with mean redshift z = 2.1. A power-law fit to our results yields a logarithmic slope n = -2.25 ± 0.18 and an amplitude Δ2ρ(kp) = 0.57+0.26-0.18, where Δ2ρ is the contribution to the density variance from a unit interval of ln k and kp = 0.008(km s-1)-1. Direct comparison of our mass P(k) to the measured clustering of Lyman break galaxies shows that they are a highly biased population, with a bias factor b ~ 2-5. The slope of the linear P(k), never previously measured on these scales, is close to that predicted by models based on inflation and cold dark matter (CDM). The P(k) amplitude is consistent with some scale-invariant, COBE-normalized CDM models (e.g., an open model with Ω0 = 0.4) and inconsistent with others (e.g., Ω = 1). Even with limited dynamic range and substantial statistical uncertainty, a measurement of P(k) that has no unknown "bias factors" offers many opportunities for testing theories of structure formation and constraining cosmological parameters.
Phenomenological analysis of nucleon strangeness and meson-nucleon sigma terms
Creators: name: Huang, Feng
name: Cao, Fu-Guang
name: Ma, Bo-Qiang
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate the nucleon strangeness $y_N$ in the chiral quark model and the meson cloud model. With the internal relation between the sigma term of $π$$N$ ($σ_{πN}$) and $y_N$, we present the results of $σ_{πN}$ in these two models. Our calculations show that $y_N$ from the chiral quark model is significant larger than that from the meson cloud model, whereas the difference of $σ_{πN}$ between the two models is relatively small. We also present the results of $σ_{K N}$ and $σ_{ηN}$, which could be determined by $σ_{πN}$ and $y_N$ from their definition in the current algebra, and find that these two physical parameters are quite sensitive to $y_N$. The results indicate the necessity to restrict the parameters of the two models from more precision measurements.
description: 13 latex pages, no figure, to appear in PRD
MPEC 2024-N66 : 2024 LG9
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 LG9

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Weak Neutral Current Studies with Positrons
Creators: name: Riordan, S.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Weak neutral current interactions with charged leptons have offered unique opportunities to study novel aspects of hadronic structure and search for physics beyond the standard model. These studies in the medium energy community have been primarily through parity-violating processes with electron beams, but with the possibility of polarized positron beams, new and complementary observables can be considered in experiments analogous to their electron counterparts. Such studies include elastic proton, deep inelastic, and electron target scattering. Potential positron neutral current experiments along with their potential physics reach, requirements, and feasibility are presented.
title: Leadership practice in centralised systems: accountability, school culture and continuing professional development
Creators: name: Sakin, Meliha
Publisher: name: University of Reading
Year: 2022

description: As Turkey strives to better respond to higher social and economic expectations of the
globalising world, educational reforms have become an essential factor for improving
education and schools and making them more effective. While demands for reform in
Western countries have fostered the significance of leadership, especially leadership at the
school level, to attain the desired effects of reform policies (Leithwood and jantzi, 2006),
there is a dearth of empirical research into school leaders and teachers experiences of
leadership practice in Turkey. This study aims to contribute to fill this gap by exploring how
leadership is practiced in Turkish secondary schools and thus claims to be an original and
important contribution to the understanding of this phenomenon.
The study adopted the interpretivist paradigm with an embedded mixed methods design,
drawing on data from two secondary schools in Turkey. This consisted of administering a
questionnaire to 128 teachers and 24 school leaders. These data were then enriched by
conducting face-to-face interviews with school principals (n=2), assistant principals (n=4) and
group leaders (n=6), while group interviews were conducted with teachers (n=12). In
addition, the daily work of school principal in one school was observed (for 3 days). The
quantitative data obtained from the questionnaires were analysed by using SPSS. Thematic
analysis was used to analyse the data collected using observation, face-to-face and group
interviews. The conceptual framework for this study centres upon three main concepts,
which are discussed in depth: accountability, school culture and continuing professional
development.
The results of this study point to the influence of contextual factors in the practice of
leadership. The study reveals that the centralised nature of the Turkish education system
was reflected in participants' perceptions about school leadership and the manner of
everyday leadership and management practices. It is hoped that the findings, although not
generalisable, will be important to inform practitioners, policy makers and researchers about
the nature of school leadership in Turkey.
Competition and Lexical Categorization
Creators: name: Macwhinney, Brian
Publisher: name: Carnegie Mellon University
Year: 1987
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: A statement of the ways in which lexical competition can give rise to a variety of semantic effects, including Mutual Exclusivity, semiotic extension, and overgeneralization.
Metholcus rotundicollis Schilsky 1898
Creators: name: Zahradník, Petr
name: Demetriou, Jakovos
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Ptinidae
Metholcus
Metholcus rotundicollis

description: Metholcus rotundicollis Schilsky, 1898
= subseriatus J. R. Sahlberg, 1913
Distribution. P: EG GR IS LE SY TR. East Mediterranean (Zahradník 2006, 2007a). New species for Cyprus.
Material examined. Paphos prov., Pomos, forest steppe and fruit orchards, beeting of bushes evening and night, 100 m a. s. l., 35°09‘37‘‘ N, 32°32‘45‘‘ E, 25. v. 2017, 4 spec., lgt. M. Mantič, coll. PCMM (2 spec.), PZPC (2 spec.).
description: Published as part of Zahradník, Petr & Demetriou, Jakovos, 2023, A review of the Ptinidae (Coleoptera: Bostrichoidea) of Cyprus, including new faunistic records and the description of a new species, pp. 243-265 in Zootaxa 5306 (2) on page 260, DOI: 10.11646/zootaxa.5306.2.5, http://zenodo.org/record/8061315
Competing physiological pathways link individual differences in weight and abdominal adiposity to white matter microstructure.
Creators: name: Verstynen, Timothy
name: Weinstein, Andrea
name: Erickson, Kirk I.
name: Sheu, Lei K.
name: Marsland, Anna L
name: Gianaros, Peter J.
Publisher: name: Carnegie Mellon University
Year: 2013
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: Being overweight or obese is associated with reduced white matter integrity throughout the brain. It is not yet clear which physiological systems mediate the association between inter-individual variation in adiposity and white matter. We tested whether composite indicators of cardiovascular, lipid, glucose, and inflammatory factors would mediate the adiposity-related variation in white matter microstructure, measured with diffusion tensor imaging on a group of neurologically healthy adults (N=155). A composite factor representing adiposity (comprised of body mass index and waist circumference) was associated with smaller fractional anisotropy and greater radial diffusivity throughout the brain, a pattern previously linked to myelin structure changes in non-human animal models. A similar global negative association was found for factors representing inflammation and, to a lesser extent, glucose regulation. In contrast, factors for blood pressure and dyslipidemia had positive associations with white matter in isolated brain regions. Taken together, these competing influences on the diffusion signal were significant mediators linking adiposity to white matter and explained up to fifty-percent of the adiposity-white matter variance. These results provide the first evidence for contrasting physiological pathways, a globally distributed immunity-linked negative component and a more localized vascular-linked positive component, that associate adiposity to individual differences in the microstructure of white matter tracts in otherwise healthy adults.
Recent Development of High Temperature Superconducting (HTS) Cable Application to Ship Deperming Work
Creators: name: M. Hirota
Publisher: name: Zenodo
Year: 2021
Subjects: Ship
magnetic deperming
HTS
superconducting cable
seabed

description: We study a system of high electric current cable laid on the seabed for purpose of naval ship magnetic deperming. Magnetic field to deperm the ship is imposed vertically on to the ship. Moderate magnetic field over 2400 A/m is to be imposed on the volume equivalent of several thousand tons of ship, with alternately changing direction and gradually decreasing intensity. Cable with conventional conductor needs large power source because of the requirements coming from the cable's resistivity and high decay of magnetic field depending on distance from source. High Temperature Superconducting cable is suitable for this application. We set a requirement of maximum current of the cable as 200 kA and the length as 1200 m set on seabed of 12 m depth. Our recent design of the cable composed of Rare-earth-Barium-Copper-Oxide tape conductor stack, bundled and cooled by helium gas to 50 K. As a next step, cooling to 20 K with the same base concept of cable is shown to mitigate high expense of the tape conductor.
Origin of orbits of secondaries in the discovered trans-Neptunian binaries
Creators: name: Ipatov, S. I.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The dependences of inclinations of orbits of secondaries in the discovered trans-Neptunian binaries on the distance between the primary and the secondary, on the eccentricity of orbits of the secondary around the primary, on the ratio of diameters of the secondary and the primary, and on the elements of heliocentric orbits of these binaries are studied. These dependences are interpreted using the model of formation of a satellite system in a collision of two rarefied condensations composed of dust and/or objects less than 1 m in diameter. It is assumed in this model that a satellite system forms in the process of compression of a condensation produced in such a collision. The model of formation of a satellite system in a collision of two condensations agrees with the results of observations: according to observational data, approximately 40% of trans-Neptunian binaries have a negative angular momentum relative to their centers of mass.
description: 8 pages, 3 figures
Low-velocity collisions of centimeter-sized dust aggregates
Creators: name: Beitz, Eike
name: Güttler, Carsten
name: Blum, Jürgen
name: Meisner, Thorsten
name: Teiser, Jens
name: Wurm, Gerhard
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Collisions between centimeter- to decimeter-sized dusty bodies are important to understand the mechanisms leading to the formation of planetesimals. We thus performed laboratory experiments to study the collisional behavior of dust aggregates in this size range at velocities below and around the fragmentation threshold. We developed two independent experimental setups with the same goal to study the effects of bouncing, fragmentation, and mass transfer in free particle-particle collisions. The first setup is an evacuated drop tower with a free-fall height of 1.5 m, providing us with 0.56 s of microgravity time so that we observed collisions with velocities between 8 mm/s and 2 m/s. The second setup is designed to study the effect of partial fragmentation (when only one of the two aggregates is destroyed) and mass transfer in more detail. It allows for the measurement of the accretion efficiency as the samples are safely recovered after the encounter. Our results are that for very low velocities we found bouncing as could be expected while the fragmentation velocity of 20 cm/s was significantly lower than expected. We present the critical energy for disruptive collisions Q*, which showed up to be at least two orders of magnitude lower than previous experiments in the literature. In the wide range between bouncing and disruptive collisions, only one of the samples fragmented in the encounter while the other gained mass. The accretion efficiency in the order of a few percent of the particle's mass is depending on the impact velocity and the sample porosity. Our results will have consequences for dust evolution models in protoplanetary disks as well as for the strength of large, porous planetesimal bodies.
Pathfinder: Building a Circular Economy for Medical Devices - ME 310 Design Document - Johnson and Johnson (Swiss)
Creators: name: Lathi, Parth Prashant
name: Lowber, Ashley
name: Escarmant, Celine
name: Larrieux, Elle
name: Nussbaumer, Sabrina
name: Potts, Aidan
name: Havlova, Stepanka
name: Bickel, Joel
name: Chauhan, Saisha
name: Goos, Lennart
name: Fuchs, Yannick
name: Werra, Jasmin
name: Waser, Christian
Publisher: name: Stanford Digital Repository
Year: 2024
Subjects: subject: Circular economy
subject: Data tracking
subject: Single use medical devices
subject: Sorting
subject: Operating rooms
subject: Surgery

description: Johnson and Johnson believes in introducing a more circular economy for single used medical devices discarded in the Operating Room. The student team which includes students from Stanford University, USA and ZHAW University, Switzerland were asked to come up with a solution to improve the circularity of single use devices and look for ways to reduce waste and track the devices into the end of their life after a surgery. After multiple iterations and prototypes, the team came up with a solution to sort medical devices using image recognition, based on recycling value or potential of these devices. These identified devices are logged into a database, which can be used to track these devices end to end and allows for greater circularity within single use medical devices.
Analytical Model for Electrical Field at Ultrathin Field Emitter
Creators: name: V. A. Fedirko
name: S. V. Polyakov
Publisher: name: Zenodo
Year: 2021
Subjects: Electron tunneling
potential barrier
field emission
nano-sized cold cathode
conformal transformation
transfer matrix method

description: The potential barrier near the apex of an ultrathin edge field emitter is defined using an analytical model. It is used to simulate electron tunnelling from the emitter numerically. The results show that for an ultrathin emitter, the traditional approximation of a uniform field near the edge is inappropriate. The proposed method is better suited to modelling field emission from nano-sized cold cathodes. The findings apply to nano-sized cold cathode structures, including graphene field emitters.
D-term and structure of point-like and composed spin-0 particles
Creators: name: Hudson, Jonathan
name: Schweitzer, Peter
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: This work deals with form factors of the energy-momentum tensor (EMT) of spin-0 particles and the unknown particle property D-term related to the EMT, and is divided into three parts. The first part explores free, weakly and strongly interacting theories to study EMT form factors with the following findings. (i) The free Klein-Gordon theory predicts for the D-term D = -1. (ii) Even infinitesimally small interactions can drastically impact D. (iii) In strongly interacting theories one can encounter large negative D though notable exceptions exist, which includes Goldstone bosons of chiral symmetry breaking. (iv) Contrary to common belief one cannot arbitrarily add "total derivatives" to the EMT. Rather the EMT must be defined in an unambiguous way. The second part deals with the interpretation of EMT form factors in terms of 3D-densities with following results. (i) The 3D-density formalism is internally consistent. (ii) The description is subject to relativistic corrections which are acceptably small in phenomenologically relevant situations including nucleon and nuclei. (iii) The free field result D=-1 persists when a spin-0 boson is not point-like but "heuristically given some internal structure." The third part investigates the question, whether such "giving of an extended structure" can be implemented dynamically, and has the following insights. (i) We construct a consistent microscopic theory which, in a certain parametric limit, interpolates between extended and point-like solutions. (ii) This theory is exactly solvable which is rare in 3+1 dimensions, admits non-topological solitons of Q-ball-type, and has a Gaussian field amplitude. (iii) The interaction of this theory belongs to a class of logarithmic potentials which were discussed in literature, albeit in different contexts including beyond standard model phenomenology, cosmology, and Higgs physics.
description: 26 pages, 3 figures
Xyletinus (Calypterus) bucephalus subsp. bucephalus Mulsant & Godart 1859
Creators: name: Zahradník, Petr
name: Demetriou, Jakovos
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Anobiidae
Xyletinus
Xyletinus bucephalus
Xyletinus (calypterus) bucephalus bucephalus (illiger, 1807)

description: Xyletinus (Calypterus) bucephalus bucephalus (Illiger, 1807)
Baudi di Selve 1874: 333; Pic 1912b: 48; Emets & Logvinovskiy 1977: 415; Georghiou 1977: 34; Logvinovskiy 1983: 112; Zahradník 2007a: 359; Zahradník 2016b: 121; Viñolas & Muñoz-Batet 2021: 136.
Distribution. P: CI CY EG FR GR IQ IS IT LB LE MO OM PT RO RU SA SP SY TU YE. Mediterranean, Arabian Peninsula, exceptionallyin central Asia (Zahradník 2007a, 2016b).
Material examined. Paphos prov., Akamas Peninsula, 96 m a. s. l., 35°00’47’’ N, 32°19’01’’ E, 1 spec., lgt. T. Staněk, coll. PCTS.
description: Published as part of Zahradník, Petr & Demetriou, Jakovos, 2023, A review of the Ptinidae (Coleoptera: Bostrichoidea) of Cyprus, including new faunistic records and the description of a new species, pp. 243-265 in Zootaxa 5306 (2) on pages 260-261, DOI: 10.11646/zootaxa.5306.2.5, http://zenodo.org/record/8061315
The dynamic origins of fermionic D-terms
Creators: name: Hudson, Jonathan
name: Schweitzer, Peter
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The D-term is a particle property defined, similarly to the mass and spin, through matrix elements of the energy-momentum tensor. It is currently not known experimentally for any particle, but the D-term of the nucleon can be inferred from studies of hard-exclusive reactions. In this work we show that the D-term of a spin-1/2 fermion is of dynamical origin: it vanishes for a free fermion. This is in pronounced contrast to the bosonic case where already a free spin-0 boson has a non-zero intrinsic D-term as shown in an accompanying work. We illustrate in two simple models how interactions generate the D-term of a fermion with an internal structure, the nucleon. All known matter is composed of elementary fermions. This indicates the importance to study this interesting particle property in more detail, which will provide novel insights especially on the structure of the nucleon.
description: 8 pages
title: Stability of Armor Units Covering High-Mound Composite Breakwaters against Tsunami Overflow
Creators: name: Mitsui, Jun
name: Kubota, Shin-Ichi
name: Matsumoto, Akira
Publisher: name: Bundesanstalt für Wasserbau
Year: 2019

description: Presented at: Coastal Structures Conference 2019, Hannover, Germany, September 30th – October 2nd, 2019
Competing Cues: A Corpus-based Study of the English Tense-Aspect in Second Language Acquisition
Creators: name: Zhao, Yun
name: Macwhinney, Brian
Publisher: name: Carnegie Mellon University
Year: 2010
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: Current work on the acquisition of tense and aspect has its roots in the morpheme order studies of the 1970s. These studies looked at the acquisition of verb morphology by L2 learners of English in terms of the accuracy of tense- aspect inflections in obligatory contexts (Dulay & Burt, 1972; Bayley, 1994; Larsen-Freeman, 1975). Although these studies often identified universal orders across learners, they failed to provide an explanation for the observed orders. One exception is the analysi by Goldschneider and DeKeyser (2005) that tried to explain the natural order of six grammatical forms by taking account of the interaction of the five factors of perceptual salience, semantic complexity, morphophonological regularity, syntactic category, and frequency. This analysis concluded that saliency is the most important of the five factors. However, for each of the six grammatical forms that were analyzed, there were other factors that could have played a possibly more important in influencing their order of acquisition.
Spin-Hall current and spin polarization in an electrically biased SNS Josephson junction
Creators: name: Mal'shukov, A. G.
name: Chu, C. S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Periodic in time spin-Hall current and spin polarization induced by a dc electric bias has been calculated in a superconductor-normal 2DEG-superconductor (SNS) Josephson junction. We assumed that the band energies of electrons in the normal system are splitted due to Rashba spin-orbit coupling. The transport parameters have been calculated within the diffusion approximation and using perturbation expansion over a small SN contact transparency. We found out that in contrast to the stationary Josephson effect, the spin-Hall current does not turn to zero. Besides a direct proximity effect caused by Cooper pair's transition into a triplet state, the spin current and polarization are also driven by a periodic electric field associated with the charge imbalance.
description: 9 pages, 7 figures, appendix added
Curvature dependent surface energy for free standing monolayer graphene: geometrical and material linearization with closed form solutions
Creators: name: Sfyris, D.
name: Sfyris, G. I.
name: Galiotis, C.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Continuum modeling of a free-standing graphene monolayer, viewed as a two dimensional 2-lattice, requires specifications of the components of the shift vector that act as an auxiliary variable. The field equations are then the equations ruling the shift vector, together with momentum and moment of momentum equations. To introduce material linearity energy is assumed to have a quadratic dependence on the strain tensor, the curvature tensor, the shift vector, as well as to combinations of them. Hexagonal symmetry then reduces the overall number of independent material constants to nine. We present an analysis of simple loading histories such as axial, biaxial tension/compression and simple shear for a range of problems of increasing difficulty for the geometrically and materially linear case. We start with the problem of in-plane motions only. By prescribing the displacement, the components of the shift vector are evaluated. This way the field equations are satisfied trivially. Out-of-plane motions are treated as well; we assume in-plane tension/compression that leads to buckling/wrinkling and solve for the components of the shift vector as well as the function present in buckling's modeling. The assumptions of linearity adopted here simplifies the analysis and facilitates analytical results.
description: 3 figures
Exact Minimum Eigenvalue Distribution of an Entangled Random Pure State
Creators: name: Majumdar, Satya N.
name: Bohigas, Oriol
name: Lakshminarayan, Arul
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A recent conjecture regarding the average of the minimum eigenvalue of the reduced density matrix of a random complex state is proved. In fact, the full distribution of the minimum eigenvalue is derived exactly for both the cases of a random real and a random complex state. Our results are relevant to the entanglement properties of eigenvectors of the orthogonal and unitary ensembles of random matrix theory and quantum chaotic systems. They also provide a rare exactly solvable case for the distribution of the minimum of a set of N {\em strongly correlated} random variables for all values of N (and not just for large N).
description: 13 pages, 2 figures included; typos corrected; to appear in J. Stat. Phys
Laser assisted decay of quasistationary states
Creators: name: Cortés, H. M. Castañeda
name: Popruzhenko, S. V.
name: Bauer, D.
name: Pálffy, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The effects of intense electromagnetic fields on the decay of quasistationary states are investigated theoretically. We focus on the parameter regime of strong laser fields and nonlinear effects where an essentially nonperturbative description is required. Our approach is based on the imaginary time method previously introduced in the theory of strong-field ionization. Spectra and total decay rates are presented for a test case and the results are compared with exact numerical calculations. The potential of this method is confirmed by good quantitative agreement with the numerical results.
description: 24 pages, 5 figures
Perturbations and moduli space dynamics of tachyon kinks
Creators: name: Hindmarsh, Mark
name: Li, Huiquan
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The dynamic process of unstable D-branes decaying into stable ones with one dimension lower can be described by a tachyon field with a Dirac-Born-Infeld effective action. In this paper we investigate the fluctuation modes of the tachyon field around a two-parameter family of static solutions representing an array of brane-antibrane pairs. Besides a pair of zero modes associated with the parameters of the solution, and instabilities associated with annihilation of the brane-antibrane pairs, we find states corresponding to excitations of the tachyon field around the brane and in the bulk. In the limit that the brane thickness tends to zero, the support of the eigenmodes is limited to the brane, consistent with the idea that propagating tachyon modes drop out of the spectrum as the tachyon field approaches its ground state. Low-lying excited states, including the zero modes, appear to show a 4-fold degeneracy in this limit. Finally, we also discuss the slow motion of the solution corresponding to the decay process in the moduli space, finding a trajectory which oscillates periodically between the unstable D-brane and the brane-antibrane pairs of one dimension lower.
description: 15 pages, 19 figures
title: Suivi du patient H
Creators: name: Leibowitch, Jacques (1942-2020)
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020

description: Graphique et tableau de fichier xls transformé en fichier pdf.
title: A critical exploration of the distinction between catechesis and religious education in the magisterial documents of the Catholic Church: the theology of communion as a unifying bond between catechesis and religious education
Creators: name: Franchi, Leonard
Publisher: name: University of Glasgow
Year: 2013
Subjects: subject: catechesis, history of religious education, theology

description: The distinction between catechesis and religious education in Catholic schools is an important theme in contemporary Catholic educational thought. A firm and nuanced understanding of the nature of this relationship and its historical roots is essential to understanding both fields of study. The nature of this debate has been recognised by the Magisterium of the Catholic Church as crucial to the mission of the Catholic school. While Religious Education is vital to the unique identity of the Catholic school, too close an association with catechesis can lead to a blurring of distinctions. Contemporary Catholic thinking on this matter suggests the following accommodation: religious education is focussed on knowledge of Catholic thinking in theology and related cultural issues; catechesis explicitly focuses on faith development. The theology of communion (communio) assists Catholic educators to harmonise both concepts. Religious Education is thereby understood as a ‘shared project’ between catechesis and Catholic thinking on education.
Distributions of Waiting Times of Dynamic Single-Electron Emitters
Creators: name: Albert, Mathias
name: Flindt, Christian
name: Büttiker, Markus
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The distribution of waiting times between elementary tunneling events is of fundamental importance for understanding the stochastic charge transfer processes in nanoscale conductors. Here we investigate the waiting time distributions (WTDs) of periodically driven single-electron emitters and evaluate them for the specific example of a mesoscopic capacitor. We show that the WTDs provide a particularly informative characterization of periodically driven devices and we demonstrate how the WTDs allow us to reconstruct the full counting statistics (FCS) of charges that have been transferred after a large number of periods. We find that the WTDs are capable of describing short-time physics and correlations which are not accessible via the FCS alone.
description: 4+ pages, 3 figures, final version as published in Phys. Rev. Lett
Effects of artificial light with different wavelengths and irradiances on the sleep behaviors of Chestnut buntings (Emberiza rutila)
Creators: name: Ren, Zhuofei
name: Chen, Yuqi
name: Liu, Fangbo
name: Ma, Xinlong
name: Ma, Jianxiong
name: Liu, Gang
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Ecology
subject: Biological Sciences not elsewhere classified

description: Artificial light owns a rapid-expanding pattern, which may disrupt the sleep behaviors of birds roosting in illuminated urban areas. Whether the birds’ sleep would variably be affected by light with different wavelengths or intensities has not been broadly explored, and the species in Eastern China have rarely been investigated. The study chose Chestnut buntings that are a common migratory species flying via Eastern China as the subjects and investigated their sleep in response to five light spectrums at three ecologically relevant intensities. It shows that artificial light mainly delayed sleep onset, reduced sleep duration and increased frequency of awakenings, which to the largest degrees resulted in a 3-h delay of sleep onset, 25% reduction of sleep and 0.31 times/h more nocturnal awakenings. Awakening time was delayed at higher light intensity while being advanced in dimmed light. The effect of light spectrums overall ranked from the most to the least as 510 nm green, 580 nm yellow or white, and 470 nm blue or 620 nm orange light; the sleep parameters were affected more with higher light intensities. The study highlights the potential of adjusting spectral compositions of light source to mitigate the disturbance of artificial light to avian sleep.
Competing basal ganglia pathways determine the difference between stopping and deciding not to go.
Creators: name: Dunovan, Kyle
name: Lynch, Brighid
name: Molesworth, Tara
name: Verstynen, Timothy
Publisher: name: Carnegie Mellon University
Year: 2015
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: The architecture of corticobasal ganglia pathways allows for many routes to inhibit a planned action: the hyperdirect pathway performs fast action cancellation and the indirect pathway competitively constrains execution signals from the direct pathway. We present a novel model, principled off of basal ganglia circuitry, that differentiates control dynamics of reactive stopping from intrinsic no-go decisions. Using a nested diffusion model, we show how reactive braking depends on the state of an execution process. In contrast, no-go decisions are best captured by a failure of the execution process to reach the decision threshold due to increasing constraints on the drift rate. This model accounts for both behavioral and functional MRI (fMRI) responses during inhibitory control tasks better than alternative models. The advantage of this framework is that it allows for incorporating the effects of context in reactive and proactive control into a single unifying parameter, while distinguishing action cancellation from no-go decisions.
Xyletinus (Xeronthobius) bucephaloides Reitter 1901
Creators: name: Zahradník, Petr
name: Demetriou, Jakovos
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Anobiidae
Xyletinus
Xyletinus bucephaloides

description: Xyletinus (Xeronthobius) bucephaloides Reitter, 1901
Gridelli 1930: 159; Zahradník 1998: 273; Zahradník 2007a: 359.
Distribution. P: CY EG IN LB OM TR TU. East Mediterranean, Arabian Peninsula, exceptionally in central Asia (Zahradník 2007a).
description: Published as part of Zahradník, Petr & Demetriou, Jakovos, 2023, A review of the Ptinidae (Coleoptera: Bostrichoidea) of Cyprus, including new faunistic records and the description of a new species, pp. 243-265 in Zootaxa 5306 (2) on page 261, DOI: 10.11646/zootaxa.5306.2.5, http://zenodo.org/record/8061315
Laser and Fourier transform spectroscopy of KCa
Creators: name: Gerschmann, Julia
name: Schwanke, Erik
name: Pashov, Asen
name: Knöckel, Horst
name: Ospelkaus, Silke
name: Tiemann, Eberhard
Publisher: name: arXiv
Year: 2017
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: KCa was produced in a heatpipe oven and its thermal emission spectrum around 8900 cm$^{-1}$ was recorded by a high resolution Fourier transform spectrometer. In addition, many selected transitions of this spectrum between deeply bound vibrational levels of the $\mathrm{X}(1)^2Σ^+$ and $(2)^2Σ^+$ states were studied using laser excitation to facilitate the assignment of the lines. The ground state is described for $v^{\prime\prime} =$ 0 - 5 and the $(2)^2Σ^+$ state for $v^{\prime} =0$ - 8 with rotational levels up to 175. For both states, Dunham coefficients, spin-rotation parameters and potential energy curves are derived.
description: 9 pages, 8 figures
Gravity waves from ALP dark matter fragmentation
Creators: name: Chatrchyan, Aleksandr
Publisher: name: Zenodo
Year: 2019
Subjects: axion-like particles
dark matter
misalignment mechanism
gravity waves

description: Axion-like particles (ALP) are appealing candidates for dark matter if produced non-thermally via the vacuum misalignment mechanism. In certain cases, such as in the presence of a monodromy, the self-interactions of ALPs can be sufficiently strong and lead to the fragmentation of the homogeneous field soon after the onset of oscillations. We investigate numerically the dynamics of fragmentation, as well as of the subsequent turbulent regime, and calculate the stochastic gravitational wave (GW) background that is produced from this process. We find that a particularly strong background can be produced when ALPs exhibit an extended intermediate phase of ultra-relativistic dynamics, which can be induced by a small mass at the bottom of the potential. Such background can partially be explored with future GW detectors, offering an important probe of the properties of dark matter.
description: Lightning talk
Sans salut. Etre partout où est la vie
Creators: name: Cohen-Levinas, Danielle
Publisher: name: Post-filosofie
Year: 2023
Subjects: Jean-Luc Nancy; Metafisica; Religione; Respiro; Breath; Jean-Luc Nancy; Metaphysics; Religion; Jean-Luc Nancy; Métaphysique; Religion; Souffle

description: Come testimoniare il respiro di un amico? Come dire che lo spirito respira ancora e sempre, che non smetterà mai di soffiare, senza che questo respiro si identifichi con un avatar ontoteologico da cui Jean-Luc Nancy ci ha messo in guardia? La storia della religione e della metafisica si è talmente permessa il privilegio dell’oltre che la parola che la libera rischia di essere ostaggio di ciò da cui è stata a lungo esiliata. Pazienza, dobbiamo correre questo rischio. Jean-Luc Nancy amava citare questa frase di Ingeborg Bachmann: “Ogni persona che cade ha le ali”.

Diciamo, per farla breve e dolce, che le ali su cui si dispiega il respiro di Jean-Luc Nancy non hanno né inizio né fine. È un’emersione. Il sopraggiungere del respiro, si potrebbe dire, una parola cara a Nancy. Un respiro che si avvicina, che vive e muore all’infinito, là dove sorge, inaspettatamente.

 

How to witness the breath of a friend? How to say that the spirit still and always breathes, that it will never stop blowing, without this breath being identified with an onto-theological avatar that Jean-Luc Nancy has warned us against? The history of religion and metaphysics has so afforded itself the privilege of the “beyond” that the word that liberates it risks being hostage to that from which it has long been exiled. Too bad, we have to take that risk. Jean-Luc Nancy was fond of quoting this line from Ingeborg Bachmann: “Every person who falls has wings”.

Let us say, to keep it short and sweet, that the wings on which Jean-Luc Nancy’s breath unfolds have no beginning and no end. It is an emergence. The coming of the breath, one might say, a word that Nancy cherished. An approaching breath that lives and dies infinitely, where it rises, unexpectedly.
description: Post-filosofie, N. 15 (2022): Anno 15. Numero 15. Con Jean-Luc Nancy: per un’ontologia del noi e del con
Peculiarities of super-Eddington flares from the X-ray pulsar LMC X-4 with NuSTAR
Creators: name: Shtykovsky, A. E.
name: Arefiev, V. A.
name: Lutovinov, A. A.
name: Molkov, S. V.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present results of the analysis of super-Eddington flares registered from the X-ray pulsar LMC X-4 by the NuSTAR observatory in the broad energy range 3-79 keV. The pulsar spectrum is well described by the thermal comptonization model both in a quiescent state and during flares, when the peak luminosity reaches values $L_{\rm x} \sim (2-4)\times10^{39}$ erg s$^{-1}$. An important feature, found for the first time, is that the order of magnitude increase in the luminosity during flares is observed primarily at energies below 25-30 keV, whereas at higher energies (30-70 keV) the shape of the spectrum and the source flux remain practically unchanged. The luminosity increase is accompanied by changes in the source pulse profile -- in the energy range of 3-40 keV it becomes approximately triangular, and the pulsed fraction increases with increasing energy, reaching 60-70% in the energy range of 25-40 keV. The paper discusses possible changes in the geometry of the accretion column, which can explain variations in spectra and pulse profiles.
description: 13 pages, 10 figures, accepted for publication in Astronomy Letters