cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The fraction of galaxies that contain active nuclei and their accretion rates
Creators: name: Page, M. J.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the relationship between the present day optical luminosity function of galaxies and the X-ray luminosity function of Seyfert 1s to determine the fraction of galaxies which host Seyfert 1 nuclei and their Eddington ratios. The local type 1 AGN X-ray luminosity function is well reproduced if ~ 1% of all galaxies are type 1 Seyferts which have Eddington ratios of ~ 10^{-3}. However, in such a model the X-ray luminosity function is completely dominated by AGN in E and S0 galaxies, contrary to the observed mix of Seyfert host galaxies. To obtain a plausible mix of AGN host galaxy morphologies requires that the most massive black holes in E and S0 galaxies accrete with lower Eddington ratios, or have a lower incidence of Seyfert activity, than the central black holes of later type galaxies.
description: 6 pages, 4 figures, accepted for publication in MNRAS
See me, teach me, guide me, but it’s up to me! Patients’ experiences of recovery during the acute phase after hip fracture
Creators: name: Asplin, Gillian
name: Carlsson, Gunnel
name: Olsén, Monika Fagevik
name: Zidén, Lena
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Medicine
subject: Cell Biology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy

description: Aim: To explore patients’ experiences of their recovery after hip fracture surgery and the use of Traffic Light System-BasicADL in their rehabilitation process. Method: Nineteen patients (13 females and 6 males), aged 66–94, were interviewed. A qualitative content analysis method was used for analysis of data. Results: Two categories were identified: ‘Being seen as a person’ with subcategories; Interaction affects trust and security; Information is key to understanding; and Encouragement is essential to promote activity. And ‘Striving for Independence’, with subcategories; Accepting the situation while trying to remain positive; The greener the better, but it’s up to me; Ask me, I have goals; and Uncertainties concerning future. Conclusion: The findings of this study mirror clinical reality. There is a continued need for organisations to reflect over existing practise and question routines and procedures. In order to improve services and provide better quality of care, it is essential to acknowledge the patients’ experiences, needs and preferences and make efforts to accommodate these where possible. Health care professionals must recognise that patients with hip fracture are individuals, with varying needs that change across the continuum of recovery.
Predominance of the weakest species in Lotka-Volterra and May-Leonard implementations of the rock-paper-scissors model
Creators: name: Avelino, P. P.
name: de Oliveira, B. F.
name: Trintin, R. S.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We revisit the problem of the predominance of the 'weakest' species in the context of Lotka-Volterra and May-Leonard implementations of a spatial stochastic rock-paper-scissors model in which one of the species has its predation probability reduced by $0 < \mathcal{P}_w < 1$. We show that,despite the different population dynamics and spatial patterns, these two implementations lead to qualitatively similar results for the late time values of the relative abundances of the three species (as a function of $\mathcal{P}_w$), as long as the simulation lattices are sufficiently large for coexistence to prevail --- the 'weakest' species generally having an advantage over the others (specially over its predator). However, for smaller simulation lattices, we find that the relatively large oscillations at the initial stages of simulations with random initial conditions may result in a significant dependence of the probability of species survival on the lattice size and total simulation time.
description: 7 pages and 6 figures
Subarcsecond Mid-IR Structure of the Dust Shell around IRAS 22272+5435
Creators: name: Ueta, T.
name: Meixner, M.
name: Hinz, P. M.
name: Hoffmann, W. F.
name: Brandner, W.
name: Dayal, A.
name: Deutsch, L. K.
name: Fazio, G. G.
name: Hora, J. L.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report sub-arcsecond imaging of extended mid-infrared emission from a proto-planetary nebula (PPN), \iras 22272+5435, performed at the MMT observatory with its newly upgraded 6.5 m aperture telescope and at the Keck observatory. The mid-infrared emission structure is resolved into two emission peaks separated by $0\arcsec.5 - 0\arcsec.6$ in the MMT 11.7 $\um$ image and in the Keck 7.9, 9.7, and 12.5 $\um$ images, corroborating the predictions based on previous multi-wavelength morphological studies and radiative transfer calculations. The resolved images show that the PPN dust shell has a toroidal structure with the $0\arcsec.5$ inner radius. In addition, an unresolved mid-IR excess appears at the nebula center. Radiative transfer model calculations suggest that the highly equatorially-enhanced ($ρ_{\rm eq}/ρ_{\rm pole} = 9$) structure of the PPN shell was generated by an axisymmetric superwind with ${\dot M}_{\rm sw} = 4 \times 10^{-6} M_{\odot}$ yr$^{-1}$, which was preceded by a spherical asymptotic giant branch (AGB) wind with ${\dot M}_{\rm AGB} = 8 \times 10^{-7} M_{\odot}$ yr$^{-1}$. These model calculations also indicate that the superwind shell contains larger dust grains than the AGB wind shell. The unresolved mid-infrared excess may have been produced by a post-AGB mass loss at a rate of $2 - 6 \times 10^{-7} M_{\odot}$ yr$^{-1}$. While the central star left the AGB about 380 years ago after the termination of the superwind, the star seems to have been experiencing an ambient post-AGB mass loss with a sudden, increased mass ejection about 10 years ago.
description: (25 pages in AASTeX preprint mode, 6 figures; to appear in the Astrophysical Journal)
Harmothoe fraserthomsoni McIntosh 1897
Creators: name: Barnich, R.
name: Fiege, D.
Publisher: name: Zenodo
Year: 2000
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Phyllodocida
Polynoidae
Harmothoe
Harmothoe fraserthomsoni

description: Harmothoe fraserthomsoni McIntosh, 1897
(fi gure 7A -C)
 Harmothoe fraserthomsoni McIntosh, 1897: 401; McIntosh, 1900: 337, pl. 28: fi gure 7, pl. 32: fi gure 11, pl. 29: fi gure 15, pl. 39: fi gure 4-6; Campoy, 1982: 60; Tebble and Chambers, 1982: 36, fi gures 11, 35, 36; Chambers and Muir, 1997: 102, fi gure 25.
 Harmothoe Fraser-Thomsoni: Fauvel, 1923: 68, fi gure 25a -e.
 Harmothoe fraser-thomsoni: Bellan, 1964a: 27.
 Type material. Harmothoe fraserthomson i, HOLOTYPE: St. 3, off the Butt of Lewis,
August 1880, dredged, 53 fathoms,`Knight-Errant’ Exp., FaÈroe Channel, 1880, BMNH 1885.12.1.7 6 (bad shape, dry).
 Additional material. 2 spms., Prof. Th. Tissier 1959, St. L 386, Mer d’Alboran,
 du Cap Tres Forcas, 35ss25¾N, 2ss44¾W, 235-250 m, VP, Coll. PeÂreÁs indeÂt. 1 spm., Prof. Th. Tissier St. 102, 14 June 1949, 49ss42¾N 3ss31¾E, CoÃte Catalane, 115 m, fonds
 Leptometra, identi fi ed as Lagisca extenuata, Coll. PeÂreÁs. 1 spm. (dry), Prof. Th. Tissier St. 106, 14 June 1949, Golfe du Lion, 42ss36¾N, 3ss07¾E, 50 m, Coll. PeÂreÁs.
spms. (bad shape), St. 0112, Blanes, between sponges, Coll. Campoy. 2 spms.,
 February 1951, St. 192, Marseille, gravelle, identi fi ed as Lagisca extenuata, Coll. PeÂreÁs. 1 spm., Antedon St. 1737 August 1960, S de la Corse, 63 m, õÃle de Piana, SE pte Paragrano, Coll. PeÂreÁs. 1 spm., 15 May 1919, Porto fi no, leg. S. Nick, SMF 9208/1.
 Diagnosis. Anterior pair of eyes dorsolaterally on widest part of prostomium. Elytra: margin smooth; surface covered by conical microtubercles, conical macrotubercles scattered on surface and near posterior margin. Dorsal and ventral tentacular cirri and dorsal cirri smooth, tapering.
 Description. Prostomium bilobed, with prominent cephalic peaks; median antenna with large ceratophore in anterior notch, style smooth, tapering; lateral antennae with small ceratophores inserted ventrally and with short, smooth, tapering styles; palps smooth, about as long as median antenna and tentacular cirri; anterior pair of eyes dorsolaterally on widest part of prostomium, posterior pair dorsally IG. 7. Harmothoe fraserthomsoni ((A) large specimen; (B) small specimen; Prof. Th. Tissier 1959, St. L386). (A) Anterior end; right palp missing; dorsal view; (B) left middle elytron; (C) detail of posterior margin of same (scales 5 1 mm for A; 2 mm for B; 250 M m for C).
1904 near hind margin. Tentaculophores inserted laterally to prostomium, each with two
description: Published as part of Barnich, R. & Fiege, D., 2000, Revision of the Mediterranean species of Harmothoe Kinberg, 1856 Lagisca Malmgren, 1865 (Polychaeta: Polynoidae: Polynoinae) descriptions of a new genus and a new species, pp. 1889-1938 in Journal of Natural History 34 on pages 1903-1904
The relation between the mid-infrared emission and Black Hole Mass in Active Galactic Nuclei: A direct way to probe black hole growth?
Creators: name: Alonso-Herrero, A.
name: Ivanov, V. D.
name: Jayawardhana, R.
name: Hosokawa, T.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use a large, heterogeneous sample of local active galactic nuclei (AGN) that includes Seyfert 1s, Seyfert 2s and PG quasars to investigate for the first time the relation between black hole mass (M_BH) and mid-infrared nuclear emission. We find a clear relation between M_BH and the 10 micron nuclear luminosity for these local AGNs. There are no significant differences between type 1 and type 2 objects, implying that the reprocessing of the 10 micron nuclear emission is not severely affected by geometric and optical depth effects. We also confirm that M_BH is related to the 2-10keV X-ray luminosity, but only for the Compton thin galaxies. We present a theoretical basis for these empirical relations and discuss possible reasons for the observed scatter. Our results show that rest-frame 10 micron and hard X-ray luminosities (especially the former, which is applicable to all AGN types) can be powerful tools for conducting a census of black hole masses at high redshift and for probing their cosmological evolution.
description: Accepted for publication in the Astrophysical Journal Letters
Parameter estimation and numerical methods from A thin-film extensional flow model for biofilm expansion by sliding motility
Creators: name: Tam, Alexander
name: J. Edward F. Green
name: Balasuriya, Sanjeeva
name: Ee Lin Tek
name: Gardner, Jennifer M.
name: Sundstrom, Joanna F.
name: Jiranek, Vladimir
name: Binder, Benjamin J.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: 91504 Fluidisation and Fluid Mechanics
subject: FOS: Other engineering and technologies
subject: 10299 Applied Mathematics not elsewhere classified
subject: FOS: Mathematics
subject: 19999 Mathematical Sciences not elsewhere classified

description: This electronic supplementary material provides further details on the parameter estimation and numerical methods used in the paper.
Searching for Neutrino-less Double Beta Decay of $^{136}$Xe with PandaX-II Liquid Xenon Detector
Creators: name: Ni, Kaixiang
name: Lai, Yihui
name: Abdukerim, Abdusalam
name: Chen, Wei
name: Chen, Xun
name: Chen, Yunhua
name: Cui, Xiangyi
name: Fan, Yingjie
name: Fang, Deqing
name: Fu, Changbo
name: Geng, Lisheng
name: Giboni, Karl
name: Giuliani, Franco
name: Gu, Linhui
name: Guo, Xuyuan
name: Han, Ke
name: He, Changda
name: Huang, Di
name: Huang, Yan
name: Huang, Yanlin
name: Huang, Zhou
name: Ji, Peng
name: Ji, Xiangdong
name: Ju, Yonglin
name: Liang, Kun
name: Liu, Huaxuan
name: Liu, Jianglai
name: Ma, Wenbo
name: Ma, Yugang
name: Mao, Yajun
name: Meng, Yue
name: Namwongsa, Parinya
name: Ning, Jinhua
name: Ning, Xuyang
name: Ren, Xiangxiang
name: Shang, Changsong
name: Si, Lin
name: Tan, Andi
name: Wang, Anqing
name: Wang, Hongwei
name: Wang, Meng
name: Wang, Qiuhong
name: Wang, Siguang
name: Wang, Xiuli
name: Wang, Zhou
name: Wu, Mengmeng
name: Wu, Shiyong
name: Xia, Jingkai
name: Xiao, Mengjiao
name: Xie, Pengwei
name: Yan, Binbin
name: Yang, Jijun
name: Yang, Yong
name: Yu, Chunxu
name: Yuan, Jumin
name: Zhang, Dan
name: Zhang, Hongguang
name: Zhang, Tao
name: Zhao, Li
name: Zheng, Qibin
name: Zhou, Jifang
name: Zhou, Ning
name: Zhou, Xiaopeng
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We report the Neutrino-less Double Beta Decay (NLDBD) search results from PandaX-II dual-phase liquid xenon time projection chamber. The total live time used in this analysis is 403.1 days from June 2016 to August 2018. With NLDBD-optimized event selection criteria, we obtain a fiducial mass of 219 kg of natural xenon. The accumulated xenon exposure is 242 kg$\cdot$yr, or equivalently 22.2 kg$\cdot$yr of $^{136}$Xe exposure. At the region around $^{136}$Xe decay Q-value of 2458 keV, the energy resolution of PandaX-II is 4.2%. We find no evidence of NLDBD in PandaX-II and establish a lower limit for decay half-life of 2.4 $ \times 10^{23} $ yr at the 90% confidence level, which corresponds to an effective Majorana neutrino mass $m_{ββ} < (1.3 - 3.5)$ eV. This is the first NLDBD result reported from a dual-phase xenon experiment.
description: Submitted to Chinese Physics C
Estimation of Shower Parameters in Wavefront Sampling Technique
Creators: name: Chitnis, V. R.
name: Bhat, P. N.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Wavefront sampling experiments record arrival times of Čerenkov photons with high precision at various locations in Čerenkov pool using a distributed array of telescopes. It was shown earlier that this photon front can be fitted with a spherical surface traveling at a speed of light and originating from a single point on the shower axis. Radius of curvature of the spherical shower front ($R$) is approximately equal to the height of shower maximum from observation level. For a given primary species, it is also found that $R$ varies with the primary energy ($E$) and this provides a method of estimating the primary energy. In general, one can estimate the arrival times at each telescope using the radius of curvature, arrival direction of the primary and the core location. This, when compared with the data enables us to estimate the above parameters for each shower. This method of obtaining the arrival direction alleviates the difficulty in the form of systematics arising out of the plane wavefront approximation for the Čerenkov front. Another outstanding problem in the field of atmospheric Čerenkov technique is the difficulty in locating the shower core. This method seems to solve both these problems and provides an elegant method to determine the arrival direction as well as the core location from timing information alone. In addition, using the Čerenkov photon density information and the core position we can estimate the energy of the primary if the nature of the primary is known. Combining these two independent estimates of the primary energy, the energy resolution can be further improved. Application of this methodology to simulated data and the results will be presented. The intrinsic uncertainties on the various estimated parameters also will be discussed.
description: 3 pages, 3 Postscript figures; uses icrc.cls
An Investigation of Wrinkling Behaviour in Woven Thermoplastic Composite Material
Creators: name: Chen, Lu
Publisher: name: The Australian National University
Year: 2018
Subjects: Wrinkling
Fiber Orientation
Digital Image Correlation
Thermoplastic Composite
Strain Increment Ratio

description: This work is designed to develop a viable universal indicator to predict the onset of wrinkling for woven thermoplastic fiber-reinforced composite materials. A range of experiments on Yoshida test are carried out to investigate the local strain behaviour at the onset of wrinkling. An approach of using the abrupt change in the slope of the evolution of the strain path to predict the onset of wrinkling is proposed in this study. This approach is the first of its kind in predicting the onset of wrinkling. Different metrics in the quantification of abrupt change in the slope of strain path are examined and compared. A wrinkling indicator of using strain increment ratio to predict the onset of wrinkling is the fundamental contribution of the present work. The validity of this indicator is explored in a series of the dome forming experiments involving composite materials and steel. The results reveal that this proposed indicator can accurately predict the onset and the propagation of wrinkling in Yoshida test and dome forming operations. This indicator is also applicable to other class of materials. Analytical approach of using energy approach at a small wrinkling affected region (effective region) is also developed to predict the onset of wrinkling in Yoshida tests. This approach provides a direct relationship between the critical wrinkling stress and material properties, boundary conditions and geometrical parameters.
Figures S1 - S3 from Loss of developmental diapause as prerequisite for social evolution in bees
Creators: name: Santos, Priscila Karla Ferreira
name: Arias, Maria Cristina
name: Kapheim, Karen M.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: 60801 Animal Behaviour

description: Diapause is a physiological arrest of development ahead of adverse environmental conditions and is a critical phase of the life cycle of many insects. In bees, diapause has been reported in species from all seven taxonomic families. However, they exhibit a variety of diapause strategies. These different strategies are of particular interest since shifts in the phase of the insect life cycle in which diapause occurs have been hypothesized to promote the evolution of sociality. Here we provide a comprehensive evaluation of this hypothesis with phylogenetic analysis and ancestral state reconstruction (ASR) of the ecological and evolutionary factors associated with diapause phase. We find that social lifestyle, latitude and voltinism are significant predictors of the life stage in which diapause occurs. ASR revealed that the most recent common ancestor of all bees likely exhibited developmental diapause and shifts to adult, reproductive, or no diapause have occurred in the ancestors of lineages in which social behaviour has evolved. These results provide fresh insight regarding the role of diapause as a prerequisite for the evolution of sociality in bees.
Spin wave damping in periodic and quasiperiodic magnonic structures
Creators: name: Rychły, J.
name: Kłos, J. W.
name: Krawczyk, M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigated the lifetime of spin wave eigenmodes in periodic and quasiperiodic sequences of Py and Co wires. Those materials differ significantly in damping coefficients, therefore, the spatial distribution of the mode amplitude within the structure is important for the lifetime of collective spin wave excitations. Modes of the lower frequencies prefer to concentrate in Py wires, because of the lower FMR frequency for this material. This inhomogeneous distribution of amplitude of modes (with lower amplitude in material of higher damping and with higher amplitude in material of lower damping) is preferable for extending the lifetime of the collective excitations beyond the volume average of lifetimes for solid materials. We established the relation between the profile of the mode and its lifetime for periodic and quasiperiodic structures. We performed also the comparative studies in order to find the differences resulting from complexity of the structure and enhancement of localization in quasiperiodic system on the lifetime of spin waves.
description: 16 pages, 8 figures
Stimulus check examining an independent sample's categorisation of the animal sounds. Supplementary details on the adult, infant crying sounds. from Pawsitively sad: pet-owners are more sensitive to negative emotion in animal distress vocalizations
Creators: name: Parsons, Christine E.
name: LeBeau, Richard T.
name: Kringelbach, Morten L.
name: Young, Katherine S.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: 170299 Cognitive Science not elsewhere classified
subject: FOS: Psychology
subject: 179999 Psychology and Cognitive Sciences not elsewhere classified

description: Online experiment (N = 31)
On simple real Lie bialgebras
Creators: name: Andruskiewitsch, Nicolas
name: Jancsa, Patricia
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 17B62

description: The explicit list of all almost factorizable Lie bialgebra structures on real absolutely simple Lie algebras is given.
description: Final version, to appear in IRMN. A discussion on Manin triples is added
Tenthredopsis kaplanorum SMITH 1982
Creators: name: Schedl, W.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Tenthredinidae
Tenthredopsis
Tenthredopsis kaplanorum

description: Tenthredopsis kaplanorum SMITH 1982
M a t e r i a l 1♀ (Paratypus) Golan Heights, Mt. Meron, 9.IV.1977, (leg.) A. Freidberg, 1♀ (Paratypus) ebendort, Baniyas, 24.IV.1982, (leg.) F. Kaplan, beide in SMITH (1982).
B i o l o g i e: unbekannt.
V e r b r e i t u n g: Israel (SMITH 1982), neu für Syrien!
description: Published as part of Schedl, W., 2009, Die Pflanzenwespen von Syrien (Hymenoptera: Symphyta) - ein Überblick, pp. 1609-1630 in Linzer biologische Beiträge 41 (2) on page 1622, DOI: 10.5281/zenodo.5279162
The Mass Dependence of Stellar Rotation in the Orion Nebula Cluster
Creators: name: Herbst, W.
name: Bailer-Jones, C. A. L.
name: Mundt, R.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have determined new rotation periods for 404 stars in the Orion Nebula Cluster using the Wide Field Imager attached to the MPG/ESO 2.2 m telescope on La Silla, Chile. Mass estimates are available for 335 of these and most have M < 0.3 M_sun. We confirm the existence of a bimodal period distribution for the higher mass stars in our sample and show that the median rotation rate decreases with increasing mass for stars in the range 0.1 < M <0.4 M_sun. While the spread in angular momentum (J) at any given mass is more than a factor of 10, the majority of lower mass stars in the ONC rotate at rates approaching 30% of their critical break-up velocity, as opposed to 5-10% for solar-like stars. This is a consequence of both a small increase in observed specific angular momentum (j=J/M) and a larger decrease in the critical value of j with decreasing mass. Perhaps the most striking fact, however, is that j varies by so little - less than a factor of two - over the interval 0.1-1.0 M_sun. The distribution of rotation rates with mass in the ONC (age ~ 1 My) is similar in nature to what is found in the Pleiades (age ~ 100 My). These observations provide a significant new guide and test for models of stellar angular momentum evolution during the proto-stellar and pre-main sequence phases.
description: 11 pages, 3 figures
Acoustic Meta-atoms: An Experimental Determination of the Monopole and Dipole Scattering Coefficients
Creators: name: Jordaan, Joshua Matthew
Publisher: name: The Australian National University
Year: 2017
Subjects: Metamaterials
Acoustic Metamaterials
Monopole
Dipole
Scattering coefficients

description: Acoustic metamaterials are materials engineered to manipulate and structure acoustic fields to a degree with no parallel in natural materials. They are created from small sub-wavelength sized unit building blocks referred to as meta-atoms. These are generally arranged in a periodic array to form what behaves as a continuous metamaterial. There are many potential applications of acoustic metamaterials all with novel properties not seen in other devices; such as cloaking, super-efficient sound absorbers and thin spatially compact acoustic lenses. Meta-atom scattering terms of monopolar and dipolar symmetry have been shown to relate to the effective bulk modulus and effective fluid mass density of a homogenised metamaterial. Where, taken together these parameters define the acoustic wave propagation through a material. Due to their importance in acoustic metamaterials, this thesis describes the development and implementation of a method to experimentally determine the monopole and dipole scattering coefficients of meta-atoms. To do this, an acoustic measurement apparatus is modified and characterised to ensure accurate two-dimensional acoustic field data can be obtained. A method of extracting the monopole and dipole scattering coefficients from recorded acoustic data is then defined. This method is based on fitting the experimental incident and scattered field data of meta-atoms to acoustic multipole expansions. The scattering coefficients of a rigid circular cylinder is then determined using the developed method, and found to agree well with analytical values. Better agreement is seen at frequencies over 1000 Hz, where experimental error from the measurement apparatus is reduced. Meta-atoms previously presented in the literature are also fabricated, and their scattering coefficients determined. These are found to agree with simulated values of monopolar and dipolar resonances also taken from the literature. Where, better agreement is again observed at resonances above 1000 Hz.
Heat Transfer Prediction for Methane in Regenerative Cooling Channels with Neural Networks
Creators: name: Waxenegger-Wilfing, Günther
name: Dresia, Kai
name: Deeken, Jan Christian
name: Oschwald, Michael
Publisher: name: arXiv
Year: 2019
Subjects: subject: Machine Learning (cs.LG)
subject: Applied Physics (physics.app-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Methane is considered being a good choice as a propellant for future reusable launch systems. However, the heat transfer prediction for supercritical methane flowing in cooling channels of a regeneratively cooled combustion chamber is challenging. Because accurate heat transfer predictions are essential to design reliable and efficient cooling systems, heat transfer modeling is a fundamental issue to address. Advanced computational fluid dynamics (CFD) calculations achieve sufficient accuracy, but the associated computational cost prevents an efficient integration in optimization loops. Surrogate models based on artificial neural networks (ANNs) offer a great speed advantage. It is shown that an ANN, trained on data extracted from samples of CFD simulations, is able to predict the maximum wall temperature along straight rocket engine cooling channels using methane with convincing precision. The combination of the ANN model with simple relations for pressure drop and enthalpy rise results in a complete reduced order model, which can be used for numerically efficient design space exploration and optimization.
Interstellar Scintillation Velocities of a Relativistic Binary PSR B1534+12 and Three Other Millisecond Pulsars
Creators: name: Bogdanov, Slavko
name: Pruszynska, Malgorzata
name: Lewandowski, Wojciech
name: Wolszczan, Alex
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present interstellar scintillation velocity measurements for four millisecond pulsars obtained from long-term monitoring observations with the Arecibo radio telescope at 430 MHz. We also derive explicit expressions that relate the measured scintillation velocity to the effective transverse velocity responsible for the motion of the diffraction pattern for both binary and solitary pulsars. For B1257+12, B1534+12, J1640+2224, and J1713+0747 we derive velocity estimates of 197, 192, 38, and 82 km/s, respectively. These values are in good agreement with proper motion measurements for the four pulsars. For PSR B1534+12, we use the ISS velocity dependence on orbital phase to determine the longitude of the ascending node (Omega) of the pulsar's orbit and to derive an estimate of the effective scattering screen location. The two possible values of Omega are 70+/-20 and 290+/-20 degrees and the approximate screen location is 630+/-200 pc with the assumed pulsar distance of 1.1 kpc.
description: 16 pages, 3 PostScript figures, submitted to the Astrophysical Journal
Syristes parreyssii
Creators: name: Schedl, W.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Passeriformes
Tyrannidae
Syristes
Syristes parreyssii

description: Syristes parreyssii (SPINOLA 1843)
M a t e r i a l? Ex. Syrie (ABEILLE de PERRIN 1881); ♀ 3 Siria (GHIGI 1904); 2♀♀ Syria NW, 20 km NE Latakia, 25.5.1996, leg. M. Halada, + 1♀ von ebendort, leg. Mi. Halada ing. alle in OÖLM, det. W. Sch. 2009.
 B i o l o g i e: Larven in Stengeln von Rosa canina, R. alba, R. damascena und R. rubiginosa (SCHEIBELREITER 1969).
V e r b r e i t u n g S-Europa bis zum Kaukasus, Türkei, Israel, Zypern (BENSON 1968), Jordanien (SCHEDL 2007), Syrien!
description: Published as part of Schedl, W., 2009, Die Pflanzenwespen von Syrien (Hymenoptera: Symphyta) - ein Überblick, pp. 1609-1630 in Linzer biologische Beiträge 41 (2) on page 1623, DOI: 10.5281/zenodo.5279162
S1 - Supplementary methods and complete statistical analys from The multi-dimensional nature of information drives prioritization of private over social information in ants
Creators: name: Czaczkes, Tomer J.
name: Beckwith, John J.
name: Anna-Lena Horsch
name: Hartig, Florian
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: 60801 Animal Behaviour
subject: FOS: Biological sciences

description: Methodological details and complete statistical analysis
Gamma-Hadron Separation using Čerenkov Photon Density Fluctuations
Creators: name: Bhat, P. N.
name: Chitnis, V. R.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In atmospheric Čerenkov technique $γ-$rays are detected against abundant background produced by hadronic showers. In order to improve signal to noise ratio of the experiment, it is necessary to reject a significant fraction of hadronic showers. The temporal and spectral differences, the lateral distributions and density fluctuations of Čerenkov photons generated by $γ-$ray and hadron primaries are often used for this purpose. Here we study the differences in Čerenkov photon density fluctuations at the observation level based on Monte Carlo simulations. Various types of density fluctuations like the short range (or local), medium range fluctuations and flatness parameter are studied. The estimated quality factors reflect the efficiencies with which the hadrons can be rejected from the data. It has been found that we can reject around 80% of proton showers while retaining about 70% of $γ-$ray showers in the data, based only on the differences in the flatness parameter. Density fluctuations particularly suited for wavefront sampling observations seem to be a good technique to improve the signal to noise ratio.
description: 4 pages, 6 Postscript figures; uses icrc.cls
Host Galaxies, Obscuration and Nuclear Structure of Three Nearby Compact Symmetric Objects
Creators: name: Perlman, Eric S.
name: Stocke, John T.
name: Conway, John
name: Reynolds, Chris
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present 3-band HST imaging of three z=0.1 compact symmetric objects (CSOs): 4C 31.04, 1946+708 and 1146+596. These objects were chosen on the basis of proximity to Earth as well as HI 21 cm absorption. The inner H-band isophotes of these galaxies are well fit by "nuker" models, typical of nearby ellipticals. Each shows a significant flattening in the isophotal profile at radii ~0.5", as well as variations in ellipticity and PA. However, neither is uncommon for elliptical galaxies. All three show modest departures from nuker models at radii of 1-5 $h_{60}^{-1}$ kpc. Each shows large, well distributed dust features, which are somewhat concentrated in the nuclear regions in features which resemble disks or tori. The amount of dust in these galaxies is about 10 times higher than normal for ellipticals and radio galaxy hosts. The nuclear dust disks tend to be oriented roughly perpendicular to the radio axis. One galaxy, 4C31.04, exhibits bright nuclear regions well-aligned with the radio axis, while another, 1146+596, shows a significant near-IR excess resembling a stellar bar along its dust disk. The combination of outwardly normal isophotal profiles with significant variations in PA and ellipticity is consistent with the host galaxies being relatively recent merger remnants, with the mergers having occurred >/= 10^8 years ago. Such a merger could have "triggered" the current activity in these objects, but our data require a significant time delay between the merger and the onset of nuclear activity. However, these data are also consistent with the hypothesis that the onset of nuclear activity in radio galaxies is due to relatively minor "feeding" events and/or the formation of "bars within bars", which would disturb the internal kinematics only slightly.
description: Accepted to AJ, 27 pages, 6 figures, corrected table formatting error 4/27/01
Fixed-delay Interferometry for Doppler Extra-solar Planet Detection
Creators: name: Ge, Jian
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a new technique based on fixed-delay interferometry for high throughput, high precision and multi-object Doppler radial velocity (RV) surveys for extra-solar planets. The Doppler measurements are conducted through monitoring the stellar fringe phase shifts of the interferometer. High Doppler sensitivity is achieved through optimizing the optical delay in the interferometer and reducing photon noise by measuring multiple fringes over a broadband. This broadband operation is performed through coupling the interferometer with a low to medium resolution post-disperser. The total Doppler sensitivity of this approach is, in theory, independent of dispersing power of the post-disperser, which allows development of new generation RV machines with much reduced size, high stability and low cost compared to echelles. This technique has the potential to improve RV survey efficiency by 2-3 orders of magnitude over cross-dispersed echelle spectroscopy approach to allow a full sky RV survey for planets once the instrument is operated as a multi-object instrument and optimized for high throughput. The simple interferometer response potentially allows this technique to be operated at other wavelengths independent of popular iodine reference sources to search for planets around early type stars, white dwarfs, and M, L and T dwarfs for the first time.
description: Accepted to ApJ Letters for publication, 11 pages, 2 figures
UWB-NTIS Speaker Diarization System for the DIHARD II 2019 Challenge
Creators: name: Zajíc, Zbyněk
name: Kunešová, Marie
name: Hrúz, Marek
name: Vaněk, Jan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: In this paper, we present our system developed by the team from the New Technologies for the Information Society (NTIS) research center of the University of West Bohemia in Pilsen, for the Second DIHARD Speech Diarization Challenge. The base of our system follows the currently-standard approach of segmentation, i/x-vector extraction, clustering, and resegmentation. The hyperparameters for each of the subsystems were selected according to the domain classifier trained on the development set of DIHARD II. We compared our system with results from the Kaldi diarization (with i/x-vectors) and combined these systems. At the time of writing of this abstract, our best submission achieved a DER of 23.47% and a JER of 48.99% on the evaluation set (in Track 1 using reference SAD).
description: Submitted to Interspeech 2019
A Possible High Altitude High Energy Gamma Ray Observatory in India
Creators: name: Cowsik, R.
name: Bhat, P. N.
name: Chitnis, V. R.
name: Acharya, B. S.
name: Vishwanath, P. R.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recently an Indian Astronomical Observatory has been set up at Hanle (32$^\circ$ 46$^\prime$ 46$^{\prime\prime}$ N, 78$^\circ$ 57$^\prime$ 51$^{\prime\prime}$ E, 4515m amsl) situated in the high altitude cold desert in the Himalayas. The Observatory has 2-m aperture optical-infrared telescope, recently built by the Indian Institute of Astrophysics. We have carried out systematic simulations for this observation level to study the nature of Čerenkov light pool generated by gamma ray and proton primaries incident vertically at the top of the atmosphere. The differences in the shape of the lateral distributions of Čerenkov light with respect to that at lower altitudes is striking. This arises primarily due to the proximity of the shower maximum to the observation site. The limited lateral spread of the Čerenkov light pool and near 90% atmospheric transmission at this high altitude location makes it an ideal site for a gamma ray observatory. This results in a decrease in the gamma ray energy threshold by a factor of 2.9 compared to that at sea-level. Several parameters based on density and timing information of Čerenkov photons, including local and medium range photon density fluctuations as well as photon arrival time jitter could be efficiently used to discriminate gamma rays from more abundant cosmic rays at tens of GeV energies.
description: 4 pages, 2 Postscript figures; uses icrc.cls
Explosive death in nonlinear oscillators coupled by quorum sensing
Creators: name: Verma, Umesh Kumar
name: Chaurasia, Sudhanshu Shekhar
name: Sinha, Sudeshna
Publisher: name: arXiv
Year: 2019
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Many biological and chemical systems exhibit collective behavior in response to the change in their population density. These elements or cells communicate with each other via dynamical agents or signaling molecules. In this work, we explore the dynamics of nonlinear oscillators, specifically Stuart-Landau oscillators and Rayleigh oscillators, interacting globally through dynamical agents in the surrounding environment modeled as a quorum sensing interaction. The system exhibits the typical continuous second-order transition from oscillatory state to death state, when the oscillation amplitude is small. However, interestingly, when the amplitude of oscillations is large we find that the system shows an abrupt transition from oscillatory to death state, a transition termed "explosive death". So the quorum-sensing form of interaction can induce the usual second-order transition, as well as sudden first-order transitions. Further in case of the explosive death transitions, the oscillatory state and the death state coexist over a range of coupling strengths near the transition point. This emergent regime of hysteresis widens with increasing strength of the mean-field feedback, and is relevant to hysteresis that is widely observed in biological, chemical and physical processes.
Harmothoe pagenstecheri Michaelsen 1896
Creators: name: Barnich, R.
name: Fiege, D.
Publisher: name: Zenodo
Year: 2000
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Phyllodocida
Polynoidae
Harmothoe
Harmothoe pagenstecheri

description: Harmothoe pagenstecheri Michaelsen, 1896
(fi gure 10A -D)
 Harmothoe impar var. pagenstecheri Michaelsen, 1896: 7, pl. 1: fi gure 1.
 Harmothoe impar: Fauvel, 1923: 59, fi gure 21a -f [part]; Bellan, 1964a: 24 [part]; Campoy, 1982: 63 [part]; Tebble and Chambers, 1982: 40, fi gures 7b, 12b -c, 38 [part]; Hartmann-SchroÈder, 1996: 48, fi gure 13 [part].
 Harmothoe pagenstecheri: Chambers and Muir, 1997: 108, fi gure 28.
 Type material. Harmotho e pagenstecher i, HOLOTYPE: Helgoland, leg. Pagenstecher, ZMH V.1081. Additional material. 1 spm., October 1996, Banyuls, leg. S. Lenz, SMF 9210 /1. spm., Gyf St. 269, 15 January 1953, herbier de Posidonia, W de Riou, Coll. PeÂreÁs. spm. (af), St. 383, 18 December 1953, Marseille, Coll. PeÂreÁs indeÂt. Diagnosis. Anterior pair of eyes dorsolaterally on widest part of prostomium. Elytra: margin with fringing papillae; surface covered by conical microtubercles and few scattered papillae, with a row of large club-shaped macrotubercles, with papillae
 IG. 10. Harmothoe pagenstecheri (October 1996, Banyuls, SMF 9210 /1). (A) Anterior end; right palp missing, styles of left tentacular cirri not fi gured; dorsal view; (B) right fi fth elytron from chaetiger 9; (C) detail of posterior margin of same; (D) style of dorsal cirrus (scales 5 1 mm for A, B, D; 250 M m for C).
1910, near posterior margin. Dorsal and ventral tentacular cirri and dorsal cirri
description: Published as part of Barnich, R. & Fiege, D., 2000, Revision of the Mediterranean species of Harmothoe Kinberg, 1856 Lagisca Malmgren, 1865 (Polychaeta: Polynoidae: Polynoinae) descriptions of a new genus and a new species, pp. 1889-1938 in Journal of Natural History 34 on pages 1909-1910
Figure S3 from The surface adsorption, aggregate structure and antibacterial activity of Gemini quaternary ammonium surfactants with carboxylic counterions
Creators: name: Xiqin Zhou
name: Siqi Hu
name: Wang, Yu
name: Ullah, Sana
name: Hu, Jun
name: Hongqin Liu
name: Baocai Xu
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: 30699 Physical Chemistry not elsewhere classified
subject: FOS: Chemical sciences

description: A group of Gemini quaternary ammonium surfactants with the formula CnH2n+1CONH(CH2)2N+(CH3)2(CH2)2N+(CH3)2(CH2)2NHCOCnH2n+1 · 2Y (n = 11, 13 and 15, Y = HCOO−, CH3COO− and CH3CHOHCOO−) have been synthesized by a counterion conversion process and characterized by a Fourier transform infrared spectroscopy and a mass spectroscopy. Their adsorption and self-aggregation properties are investigated by surface tension, conductivity, dynamic light scattering and transmission electron microscopy (TEM) measurements. The results show that these surfactants reduce the surface tension of water to a minimum value of 26.51 mN m−1 at a concentration of 5.72 × 10−2 mmol l−1. Furthermore, the increased alkyl chain length of the carboxylic counterions leads to the increased critical micelle concentration, the decreased degree of counterion binding (β) and the decreased self-assembly tendency, but the minimum area per surfactant molecule (Amin) adsorbed at the air–aqueous solution are similar. TEM images reveal that these surfactants self-assemble spontaneously into aggregates with vesicle or bilayer structures. It is also found that they have superior antibacterial activity at a concentration of 0.1 g l−1. The high surface activity and high antibacterial activity of the Gemini quaternary ammonium salt surfactants containing different carboxylic counterions bring more possibilities for the application in the field of biomedicine.
HyperKähler Manifolds and Birational Transformations
Creators: name: Hu, Yi
name: Yau, S. -T.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Algebraic Geometry (math.AG)
subject: High Energy Physics - Theory (hep-th)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this paper we study the birational geometry of HyperKaehler manifolds by combining the method of minimal model program and the traditional approach of symplectic geometry.
What is the real nature of HD 108 ?
Creators: name: Naze, Yael
name: Vreux, Jean-Marie
name: Rauw, Gregor
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Since the beginning of the past century, the nature of HD 108 has been a subject of intense debate. One after another, astronomers explored its variability and attributed it either to binarity, or to changes in the stellar wind of a single star. In this article, we analyse a 30 years long campaign of spectroscopic observations of this star with special emphasis on the last 15 years during which photographic plates have been replaced by CCD detectors. Our investigation of the radial velocities of HD 108 yields no significant short- or long-term period and does not confirm the published periodicities either. Though the radial velocity of HD 108 appears clearly variable, the variations cannot be explained by the orbital motion in a spectroscopic binary. However, our data reveal spectacular changes in the H I Balmer lines and some He I profiles over the years. These lines continuously evolved from P Cygni profiles to `pure' absorption lines. A similar behaviour was already observed in the past, suggesting that these changes are recurrent. HD 108 seems to share several characteristics of Oe stars and we discuss different hypotheses for the origin of the observed long-term variations. As we are now in a transition period, a continuous monitoring of HD 108 should be considered for the next few years.
description: 13 pages with 9 figures, published in A&A. The paper is also available at http://vela.astro.ulg.ac.be/Preprints/P65/index.html
Pachycephus konowi KOHL 1905
Creators: name: Schedl, W.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Cephidae
Pachycephus
Pachycephus konowi

description: Pachycephus konowi KOHL 1905 (Abb. 2, S. 1612)
M a t e r i a l: 1♀ Syria sept., Manbij (= Manbi) env., 9.5.1996, leg. Mi. Halada ing., in OÖLM, det. W. Sch. 2009. Gut determinierbar mit dem Schlüssel in ENSLIN (1914).
B i o l o g i e: unbekannt.
V e r b r e i t u n g:Kleinasien, Israel (BENSON 1955), neu für Syrien!
description: Published as part of Schedl, W., 2009, Die Pflanzenwespen von Syrien (Hymenoptera: Symphyta) - ein Überblick, pp. 1609-1630 in Linzer biologische Beiträge 41 (2) on page 1623, DOI: 10.5281/zenodo.5279162