cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Polar molecules in bilayers with high population imbalance
Creators: name: Klawunn, Michael
name: Recati, Alessio
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We investigate a dilute Fermi gas of polar molecules confined into a bilayer setup with dipole moments polarized perpendicular to the layers. In particular, we consider the extreme case of population imbalance, where we have only one particle in one layer and many particles in the other one. The single molecule is attracted by the dilute Fermi-gas through the inter-layer dipole-dipole force presenting an interesting impurity problem with longrange anistropic interaction. We calulate the chemical potential of the impurity, in second order perturbation theory and in ladder approximation with a Brueckner-Hartree-Fock approach. Moreover, we determine the momentum relaxation rate of the impurity, which is related to the "dipolar" drag effect. For a confined system we relate the results for the chemical potential with the measurement of the collective modes of the impurity. The momentum relaxation rate provide instead an estimate on how quickly the oscillations are damped.
description: 7 pages, 3 figures
Linear and nonlinear poroviscoelasticity, and fracture properties of gelatin-based hydrogels
Creators: name: Chen, Si (Ph. D. In Engineering Mechanics)
name: 0000-0001-9098-4469
Publisher: name: The University of Texas at Austin
Year: 2022
Subjects: Hydrogels
Poroelasticity
Viscoelasticity
Fracture

description: Hydrogels are polymer networks embedded in a solvent which is usually predominantly water. Due to the solvent diffusion and rearrangement of the polymer network, hydrogels exhibit poroelastic and viscoelastic behaviors. The two behaviors are usually coupled and may influence other mechanical properties, such as fracture. While there is much work on modeling and simulation of poroelasticity, viscoelasticity, and fracture, there is still a need for more experimental work that explores the response of the material and the calibration of the material response. In this dissertation, three large suites of experiments were performed under nonhomogeneous conditions to characterize the linear and nonlinear poroelasticity, viscoelasticity, and fracture in gelatin-based hydrogels. First, the poroelasticity of gelatin-based hydrogel of two different compositions is examined through drying and swelling experiments, achieved by adjusting the humidity levels in an environmentally controlled enclosure. The deformation of the specimens was quantified through Digital Image Correlation. The experimental measurements were compared with the simulations based on the Finite Element Method (FEM) implemented on the public domain code FEniCS, to provide a way to calibrate the material parameters both for linear and nonlinear poroelasticity. Second, the coupled poroelastic and viscoelastic behaviors of hydrogels were explored through simultaneous swelling/drying and creep experiments also in a controlled environment. This work showed that the decomposition of the volumetric and isochoric deformation provides a way to separate the poroelastic and viscoelastic behaviors. According to the experimental results, the volumetric deformation was dominated by water diffusion, and isochoric deformation was influenced by both viscoelasticity and poroelasticity. A nonlinear poroviscoelastic theory was developed based on a two-potential formulation under a thermodynamic framework, that successfully captured the coupled power-law creep and swelling/drying behaviors. Finally, the fracture behavior of hydrogels was explored under various conditions through poroelastic diffusion and viscoelastic creep. The viscoelastic J-like integral based on Schapery's theory was calculated from the measured displacement field and served as a characteristic parameter for crack growth in quasi-steady conditions. To further explore the poroelastic influence on the crack tip, fracture tests of immersed-crack-tip conditions were performed, which showed that water diffusion decreased the fracture energy.
Intrusive polynomial chaos uncertainty quantification on shallow water system
Creators: name: Chen, Chen (Ph. D. In Engineering Mechanics)
Publisher: name: The University of Texas at Austin
Year: 2022
Subjects: Uncertainty quantification
Shallow water system

description: In order to build a surrogate model and study the propagation of uncertainty in hydrological systems, it usually takes significant time to determine a sampling strategy and run hundreds of forward simulations. The challenge comes when a timely prediction is required in the presence of uncertainties. One such situation is predicting storm surge during hurricanes. We develop a stochastic shallow water model to resolve this issue. A stochastic Galerkin method is used to do the probability space discretization. An incremental pressure correction scheme is used to decouple the shallow water equations. In order to resolve the issue in the resulting stochastic hyperbolic system, we propose generalizing each stabilization method into the probability space by adding stabilization terms to every stochastic mode in a modes-coupled way. We first verify the deterministic part of this model by comparing it against analytical solutions as well as solutions from other well-established shallow water models. Then, we verify the predicted probability density function given by the stochastic model through a two-way comparison in several different test cases. Finally, the model is used to study second-order stochastic processes. We demonstrate that the maximum variance occurs at the extreme mean for both surface elevation and water velocity over space and over time. The model is also used to predict the uncertainty under an uncertain wind drag coefficient during historical hurricane events. We conclude that the wind drag coefficient has a significant impact on the surface elevation, at least up to an offset of 0.66 meters, given an uncertain wind drag coefficient in two scenarios. Furthermore, we propose a predictor, μ + σ, and demonstrate its effectiveness under the same uncertain wind drag coefficient.
B Mixing in the Standard Model and Beyond: Lattice QCD
Creators: name: Bernard, C.
name: Bouchard, C. M.
name: El-Khadra, A. X.
name: Freeland, E. D.
name: Gámiz, E.
name: Kronfeld, A. S.
name: Laiho, J.
name: Van de Water, R. S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We give a brief overview and progress report on our lattice QCD calculation of neutral B mixing hadronic matrix elements needed for Standard Model and Beyond the Standard Model physics. Reference [1] contains more details and results.
description: 3 pages, 0 figures, Proceedings of the 19th Particles and Nuclei International Conference (PANIC11), Cambridge, MA, U.S.A., July 2011
Johnson–Holmquist-II(JH-2) Constitutive Model for Masonry Wall Subjected to High Velocity Impact.docx
Creators: name: BAGHERZADEH AZAR, AMIN
name: Sari, Ali
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 400504
subject: Construction engineering
classificationCode: 400502
subject: Civil geotechnical engineering
classificationCode: 400506
subject: Earthquake engineering
classificationCode: 400505
subject: Construction materials

description: When structures are subjected to high and short period loads, they can sustain considerable structural damage. Short-duration dynamic loads frequently display large spatial and temporal fluctuations, resulting in prominent stress gradients inside structures. As a result, the analysis of structures subjected to blast loads is an incredibly complicated issue in which it is difficult to adequately determine the deformation and cracking features of such structures. The 2007 event in Oakland, California, in which a car collided with and torched a gasoline tanker, caused partial structural damage of interstate bridges. A similar disaster occurred in Saudi Arabia in 2012, when a gas truck collided with a bridge, resulting in a gas leak and explosion [1]. The industrial infrastructure in the vicinity of the explosion was severely destroyed, resulting in a huge loss of life and a large number of injuries. This issue has resulted in significant efforts to assess the reactivity and efficacy of vital or indispensable structures when subjected to explosive forces. As a result, suggestions have been developed with the goal of strengthening the structural resilience of structures in the face of probable blast loads.
Late pleistocene fluvial geomorphology of the Edmonton area: implications for glacial events in central and southern Alberta
Creators: name: Young, Robert Roderick
Publisher: name: University of Calgary
Year: 1995
Subjects: subject: GB 428.5 C3 Y67 1995
subject: Geomorphology - Alberta - Edmonton region
subject: Geomorphology, Stratigraphic - Pleistocene
subject: Glacial landforms - Alberta - Edmonton region

description: Bibliography: p.153-169.
The preparation and Sn2' ring openings of enantioenriched oxatricyclo systems: application towards the erythronolides and venturicidins
Creators: name: Woo, Simon
Publisher: name: University of Calgary
Year: 1995
Subjects: subject: QB 281 R5 W66 1996
subject: Ring formation (Chemistry)
subject: Chemistry, Organic

description: Bibliography: p. 251-269.
In-Medium Similarity Renormalization Group for Open-Shell Nuclei
Creators: name: Tsukiyama, K.
name: Bogner, S. K.
name: Schwenk, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Theory (nucl-th)
subject: Other Condensed Matter (cond-mat.other)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a nonperturbative derivation of effective valence-shell Hamiltonians in the framework of the recently developed in-medium similarity renormalization group (IM-SRG). As a first application, we calculate the spectra of $p$- and $sd$-shell nuclei, $^6$Li and $^{18}$O, based on evolved chiral nucleon-nucleon interactions. For $^6$Li, the spectrum is in very good agreement with ab-initio results. For $^{18}$O, the IM-SRG provides a new method for the shell model to systematically go beyond effective interaction techniques based on diagrammatic expansions.
description: 4 pages, 5 figures
Massive photons and Lorentz violation
Creators: name: Cambiaso, Mauro
name: Lehnert, Ralf
name: Potting, Robertus
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: All quadratic translation- and gauge-invariant photon operators for Lorentz breakdown are included into the Stueckelberg Lagrangian for massive photons in a generalized ξ-gauge. The corresponding dispersion relation and tree-level propagator are determined exactly, and some leading-order results are derived. The question of how to include such Lorentz-violating effects into a perturbative quantum-field expansion is addressed. Applications of these results within Lorentz-breaking quantum field theories include the regularization of infrared divergences as well as the free propagation of massive vector bosons.
description: 12 pages, 1 figure
Biocenotyczne związki roślin i zwierząt na obszarze Pagórów Jaworznickich
Creators: name: Sierka, Edyta
Publisher: name: figshare
Year: 2021
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Sierka E., Sierka W. (2004). Biocenotyczne związki roślin i zwierząt na obszarze Pagórów Jaworznickich. Kształtowanie środowiska geograficznego i ochrona przyrody na obszarach uprzemysłowionych i zurbanizowanych, Katowice, 43-52.The paper presents the results of investigations on relationships between phases of developments of mid-field scrub communities and groups of thrips in the Jaworznickie Hills area (the Silesian Upland) (tab. 1, 2). Authors suggest that scrubs should be protected in regard to their importance in the maintenance of the biodiversity of natural habitats.
Coronal Magnetic Field Measurement from EUV Images made by the Solar Dynamics Observatory
Creators: name: Gopalswamy, Nat
name: Nitta, Nariaki
name: Akiyama, Sachiko
name: Mäkelä, Pertti
name: Yashiro, Seiji
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: By measuring the geometrical properties of the coronal mass ejection (CME) flux rope and the leading shock observed on 2010 June 13 by the Solar Dynamics Observatory (SDO) mission's Atmospheric Imaging Assembly (AIA) we determine the Alfvén speed and the magnetic field strength in the inner corona at a heliocentric distance of ~ 1.4 Rs. The basic measurements are the shock standoff distance (deltaR) ahead of the CME flux rope, the radius of curvature of the flux rope (Rc), and the shock speed. We first derive the Alfvénic Mach number (M) using the relationship, deltaR/Rc = 0.81[(gamma-1) M^2 + 2]/[(gamma+1)(M^2-1)], where gamma is the only parameter that needed to be assumed. For gamma =4/3, the Mach number declined from 3.7 to 1.5 indicating shock weakening within the field of view of the imager. The shock formation coincided with the appearance of a type II radio burst at a frequency of ~300 MHz (harmonic component), providing an independent confirmation of the shock. The shock compression ratio derived from the radio dynamic spectrum was found to be consistent with that derived from the theory of fast mode MHD shocks. From the measured shock speed and the derived Mach number, we found the Alfvén speed to increase from ~140 km/s to 460 km/s over the distance range 1.2 to 1.5 Rs. By deriving the upstream plasma density from the emission frequency of the associated type II radio burst, we determined the coronal magnetic field to be in the range 1.3 to 1.5 G. The derived magnetic field values are consistent with other estimates in a similar distance range. This work demonstrates that the EUV imagers, in the presence of radio dynamic spectra, can be used as coronal magnetometers.
description: 25 pages, 6 figures, 2 tables
Statistics of cross sections of Voronoi tessellations
Creators: name: Zaninetti, L.
name: Ferraro, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In this paper we investigate relationships between the volumes of cells of three-dimensional Voronoi tessellations and the lengths and areas of sections obtained by intersecting the tessellation with a randomly oriented plane. Here, in order to obtain analytical results, Voronoi cells are approximated to spheres. First, the probability density function for the lengths of the radii of the sections is derived and it is shown that it is related to the Meijer $G$-function; its properties are discussed and comparisons are made with the numerical results. Next the probability density function for the areas of cross sections is computed and compared with the results of numerical simulations.
description: 10 pages and 6 figures
Peripheral vision: a written accompaniment to the thesis exhibition
Creators: name: Burns, Kathryn
Publisher: name: University of Calgary
Year: 1995
Subjects: subject: N 7433.8 B87 1995
subject: Computer art
subject: Art appreciation
subject: Burns, Kathryn Jane - Exhibitions

description: Bibliography: p. 50-52.
description: Conceptually, the ideas presented in Peripheral. Vision have evolved through an interest in mediation and communication - the potential for bridging gaps between seemingly opposing ideas, such as science and art, subject and object, illusion and reality, and good and evil. I chose the computer as a medium because of its potential for interactivity and multi-media manipulation. With the assistance of a computer science student, Curtis Jensen, I developed a multi-disciplinary installation presented in a theatre environment which involves computer control and manipulation of light, sound, video and still images in a context that involves the viewer not as an on-looker but as a participant. The resulting work acts as a mediator between viewer and artist, between viewers participating within the space, and between humans and technology in general. The viewer becomes a contributor to the work through his or her interactions. There is a CD-Rom available documenting this project.
Intermittently operated slow sand filtration: a new water treatment process
Creators: name: Buzunis, Byron James
Publisher: name: University of Calgary
Year: 1995
Subjects: subject: TD 445 B89 1995
subject: Water - Purification - Filtration

description: Bibliography: p. 168-173.
description: Access to potable water supplies is a great problem in the developing world. Many attempts have been made to develop a cheap, effective and robust way of treating water at a household scale but none have gained wide acceptance. In early 1991 Dr. Manz developed a hypothesis which would allow the adaptation of continuous slow sand filtration to intermittent use. After several studies which showed the effectiveness of filters operated in this way, this research was commenced to more closely examine intermittently operated slow sand filtration. The investigation showned the filter is effective in removing 96% of faecal coliform indicators and that this can be further improved. A mathematical model of oxygen transfer into the filter bio-layer was developed and is supported by experimental data. Removals of contaminants occurred in two phases. First capture or interception and second, metabolism and consumption of contaminants. Design and operation recommendations may improve the effectiveness future designs and identified possible areas for future research.
Leptobatopsis indica Cameron 1897, sp. nov.
Creators: name: Gupta, Ankita
name: Lokhande, Swapnil A.
name: Soman, Abhay
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Leptobatopsis
Leptobatopsis indica

description: Ichneumonid wasp Leptobatopsis indica (Cameron, 1897) from Andaman Islands
(Fig. 20)
 During the recent surveys of the Andaman & Nicobar islands undertaken in the month of February-March, 2012, the ichneumonid wasp L. indica (Ichneumonidae: Banchinae), a known parasitoid of Parnara guttatus (Bremer & Grey) (Lepidoptera: Hesperiidae) (Yu, 2012), was collected from malaise traps and yellow pan traps.
 Brief diagnosis: Head shining; frons punctate; tip of mandible black; maxillary and labial palp white; antenna white ventrally, apically brown. Mesosoma black except prothorax in front, sides of mesonotum at base, tegula, scutellum, mark on apex of the metapleuron over coxa white. Scutellum impunctate. Hind coxa, trochanter and basal half of femur red; apex of hind femur, tibia and tarsus black except white basitarsus. Apex of fore wing infuscated. Petiole white on basal half; base of second tergite and apex narrowly white; base and apex of third and fourth tergite broadly white; metasoma ventrally white in major portion.
 Specimens examined: Two females, Port Blair, Sippighat, Andamans, India; N11 o 36.566 E092 0.40, 08.iii.2012, Malaise traps, coll. Ankita Gupta; NBAII/Ichneu/Banch/Lepto/indi/08312. Three females. Port Blair, Central Agricultural Research Institute, Andamans, India; N11 o 36.56 E0920.67, 10.iii.2012, yellow pan traps, coll. Ankita Gupta; NBAII. NBAII/Ichneu/Banch/Lepto/indi/10312. All specimens deposited in NBAII.
description: Published as part of Gupta, Ankita, Lokhande, Swapnil A. & Soman, Abhay, 2013, Parasitoids of Hesperiidae from peninsular India with description of a new species of Dolichogenidea (Hymenoptera: Braconidae) parasitic on caterpillar of Borbo cinnara (Wallace) (Lepidoptera: Hesperiidae), pp. 277-290 in Zootaxa 3701 (2) on pages 283-287, DOI: 10.11646/zootaxa.3701.2.8, http://zenodo.org/record/249275
Fractional charge and statistics in the fractional quantum spin Hall effect
Creators: name: Lan, Yuanpei
name: Wan, Shaolong
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Other Condensed Matter (cond-mat.other)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In this paper, we consider there exist two types of fundamental quasihole excitation in the fractional quantum spin Hall state and investigate their topological properties by both Chern-Simons field theory and Berry phase technique. By the two different ways, we obtain the identical charge and statistical angle for each type of quasihole, as well as the identical mutual statistics between two different types of quasihole excitation.
description: 8 pages, 0 figures
Jisc Lightning Talk  - Rda Plenary March 2016 -  National Data Services Ig
Creators: name: Kaye, John
name: Bruce, Rachel
Publisher: name: Zenodo
Year: 2016
Subjects: Research Data Management Services
Repositories
Discovery

description: Slides for Jisc lightning talk - RDA National Data Services IG, March 2016 Plenary, Tokyo.

Includes:

	Jisc Organisational Context
	Research Data Management Shared Service
	UK Research Data Discovery Sercvice
	Jisc Shared Data Centres
Evidence of vectorial photoelectric effect on Copper
Creators: name: Pedersoli, Emanuele
name: Banfi, Francesco
name: Ressel, Barbara
name: Pagliara, Stefania
name: Giannetti, Claudio
name: Galimberti, Gianluca
name: Lidia, Steve
name: Corlett, John
name: Ferrini, Gabriele
name: Parmigiani, Fulvio
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Quantum Efficiency (QE) measurements of single photon photoemission from a Cu(111) single crystal and a Cu polycrystal photocathodes, irradiated by 150 fs-6.28 eV laser pulses, are reported over a broad range of incidence angle, both in s and p polarizations. The maximum QE (\simeq 4\times10^{-4}) for polycrystalline Cu is obtained in p polarization at an angle of incidence θ = 65deg. We observe a QE enhancement in p polarization which can not be explained in terms of optical absorption, a phenomenon known as vectorial photoelectric effect. Issues concerning surface roughness and symmetry considerations are addressed. An explanation in terms of non local conductivity tensor is proposed.
description: 3 pages, 3 figures
Ooencyrtus papilionis Ashmead
Creators: name: Gupta, Ankita
name: Lokhande, Swapnil A.
name: Soman, Abhay
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Encyrtidae
Ooencyrtus
Ooencyrtus papilionis

description: Ooencyrtus papilionis Ashmead (Encyrtidae) from eggs of Bibasis jaina (Moore)
(Fig. 21-22)
 The encyrtid wasp, Ooencyrtus papilionis, is the first ever representative of a parasitic wasp species to be associated with genus Bibasis on Hipatage benghalensis (L.). A detailed description of O. papilionis can be found in Huang & Noyes, 1996).
 Brief diagnosis. Head and mesosoma brown; head with metallic tinge; scutellum bluish–green with apex metallic green; legs including coxae yellow; metasoma yellow with apical tergites brown, brown coloration more conspicuous laterally; antenna with proximal three flagellomeres transverse, flagellomeres 4–6 a little longer than broad; fronto-vertex one quarter of head width; scutellum with reticulate punctate sculpture anteriorly; ovipositor mildly exserted. Mandibles with a broad truncation and one tooth.
 Material examined. One female and one male, INDIA, Nagala Block, SGNP, Thane District, Maharashtra, 30.viii.2012, emerged from eggs of Bibasis jaina (Moore) (Lepidoptera: Hesperiidae) on host plant Hiptage benghalensis (L.). coll. Swapnil & Abhay. Three females, sept. 2012, emerged from single egg of B. jaina, coll. Paresh V. Churi. All specimens deposited in National Bureau of Agriculturally Important Insects (NBAII), Bangalore, India. Code. NBAII/Enc/Ooe/papi/30812.
 Host Record. New host record from eggs of Bibasis jaina (Moore) (Lepidoptera: Hesperiidae) on host pant Hiptage benghalensis (L.). It has also been reported from other hesperiids, Erionata thrax and Hasora sp. (Noyes 2013) and from various lepidopteran eggs (Huang & Noyes, 1994).
description: Published as part of Gupta, Ankita, Lokhande, Swapnil A. & Soman, Abhay, 2013, Parasitoids of Hesperiidae from peninsular India with description of a new species of Dolichogenidea (Hymenoptera: Braconidae) parasitic on caterpillar of Borbo cinnara (Wallace) (Lepidoptera: Hesperiidae), pp. 277-290 in Zootaxa 3701 (2) on pages 287-289, DOI: 10.11646/zootaxa.3701.2.8, http://zenodo.org/record/249275
The araucaria project. An accurate distance to the late-type double-lined eclipsing binary ogle smc113.3 4007 in the small magellanic cloud
Creators: name: Graczyk, Dariusz
name: Pietrzynski, Grzegorz
name: Thompson, Ian B.
name: Gieren, Wolfgang
name: Pilecki, Bogumil
name: Udalski, Andrzej
name: Soszynski, Igor
name: Kolaczkowski, Zbigniew
name: Kudritzki, Rolf-Peter
name: Bresolin, Fabio
name: Konorski, Piotr
name: Mennickent, Ronald
name: Minniti, Dante
name: Storm, Jesper
name: Nardetto, Nicolas
name: Karczmarek, Paulina
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We have analyzed the long period, double-lined eclipsing binary system OGLE SMC113.3 4007 (SC10 137844) in the SMC. The binary lies in the north-eastern part of the galaxy and consists of two evolved, well detached, non-active G8 giants. The orbit is eccentric with e = 0.311 and the orbital period is 371.6 days. Using extensive high-resolution spectroscopic and multi-color photometric data we have determined a true distance modulus of the system of m-M=18.83 +/- 0.02 (statistical) +/- 0.05 (systematic) mag using a surface brightness - color relation for giant stars. This method is very insensitive to metallicity and reddening corrections and depends only very little on stellar atmosphere model assumptions. Additionally, we derived very accurate, at the level of 1%-2%, physical parameters of both giant stars, particularly their masses and radii, making our results important for comparison with stellar evolution models. Our analysis underlines the high potential of late-type, double-lined detached binary systems for accurate distance determinations to nearby galaxies.
description: accepted in ApJ
Subaru FOCAS survey of z=7-7.1 Lyα emitters: a test for z >~ 7 Lyα photometric luminosity functions
Creators: name: Ota, Kazuaki
name: Iye, Masanori
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Recent observations of z >~ 7 Lyα emitters (LAEs) have derived a variety of Lyα luminosity functions (LFs) with contradictory results, evolution or non-evolution from z ~ 7 LFs comprise photometric candidates and might include some contaminations. We conducted the Subaru Telescope Faint Object Camera And Spectrograph narrowband NB980 (λc ~ 9800A, FWHM ~ 100A) imaging and spectroscopy survey of z=7-7.1 LAEs to compare its "contamination-free" result with z >~ 7 photometric Lyα LFs previously derived. We imaged the Subaru Deep Field and the sky around a cluster MS 1520.1+3002 and found one LAE candidate, but spectroscopy did not reveal Lyα though deep enough to detect it. We calculated the expected number of LAEs in our survey, using five z=7 and three z=7.7 Lyα LFs from recent surveys. Seven of them are consistent with null detection (0.1^{+1.8}_{-0.1}-1.1^{+2.2}_{-1.0} LAEs) within errors including Poisson statistics and cosmic variance, but average values (0.7-1.1 LAEs) predicted from one z=7 and two z=7.7 LFs among the seven indicate nearly a single detection. The remaining one z=7 LF predicts 3.0^{+3.2}_{-2.0} LAEs. As to z=7, the discrepancy likely comes from different LAE selection criteria. For z=7.7, there are two possibilities; (1) If z=7.7 LAEs are somehow brighter in Lyα luminosity than lower redshift LAEs, z=7.7 LF is observed to be similar to or higher than lower redshift LFs even if attenuated by neutral hydrogen. (2) All/most of the z=7.7 candidates are not LAEs. This supports the decline of LF from z ~ 6 to 7.7 and reionization at z ~ 6-7.7.
description: Accepted for publication in Monthly Notices of the Royal Astronomical Society, 2012 March 08
Mass-independent Sn isotope fractionation and radiogenic 115Sn in chondrites and terrestrial rocks
Creators: name: Bragagni, Alessandro
name: Wombacher, Frank
name: Kirchenbaur, Maria
name: Braukmüller, Ninja
name: Münker, Carsten
Publisher: name: New York, NY [u.a.] : Elsevier
Year: 2022
Subjects: subject: 115 Sn
subject: Mass-independent isotope fractionation
subject: Moderately volatile elements
subject: Nucleosynthetic anomalies
subject: Tin isotopes
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: Tin has ten stable isotopes, providing the opportunity to investigate and discriminate nucleosynthetic isotope anomalies from mass-dependent and mass-independent isotope fractionation. Novel protocols for chemical separation (based on TBP-resin) and MC-ICP-MS analyses are reported here for high precision Sn isotope measurements on terrestrial rocks and chondrites. Relative to the Sn reference standard (NIST SRM 3161a), terrestrial basalts and chondrites show isotope patterns that are consistent with mass-dependent and mass-independent isotope fractionation processes as well as with 115Sn radiogenic ingrowth from 115In. Two different mass-independent isotope effects are identified, namely the nuclear volume (or nuclear field shift) and the magnetic isotope effect. The magnetic isotope effect dominates in the two measured ordinary chondrites, while repeated analyses of the carbonaceous chondrite Murchison (CM2) display a pattern consistent with a nuclear volume effect. Terrestrial basalts show patterns that are compatible with a mixture of nuclear volume and magnetic isotope effects. The ultimate origin of the isotope fractionation is unclear but a fractionation induced during sample preparation seems unlikely because different groups of chondrites show distinctly different patterns, hence pointing towards natural geo/cosmochemical processes. Only the carbonaceous chondrite Murchison (CM2) shows a Sn isotope pattern similar to what expected for nucleosynthetic variations. However, this pattern is better reproduced by nuclear volume effects. Thus, after considering mass-independent and mass-dependent effects, we find no evidence of residual nucleosynthetic anomalies, in agreement with observations for most other elements with similar half-mass condensation temperatures. Most chondrites show a deficit in 115Sn/120Sn (typically −150 to −200 ppm) relative to terrestrial samples, with the exception of one ordinary chondrite that displays an excess of about +250 ppm. The 115Sn/120Sn data correlate with In/Sn, being consistent with the β− decay of 115In over the age of the solar system. This represents the first evidence of the 115In-115Sn decay system in natural samples. The radiogenic 115Sn signature of the BSE derives from a suprachondritic In/SnBSE, which reflects preferential partitioning of Sn into the Earth's core.
Semi-analytical and hydrodynamical simulations of planet induced kinks
Creators: name: Fasano, Daniele
Publisher: name: Zenodo
Year: 2022

description: Planets embedded in protoplanetary discs excite density waves that propagate in the disc forming a spiral wake and perturbing the gas velocity field. Such perturbations are now routinely observed with ALMA (so-called 'kinks' and 'doppler-flips'). However, the properties of the planets responsible for these perturbations are unclear and often estimated roughly using by-eye comparisons with hydrodynamical models. In this talk, I will present a semi-analytical framework recently developed to study these kinematical signatures. To validate this approach, we compare our semi-analytical models to hydrodynamical SPH numerical simulations using different planet masses and disc aspect ratios. We find that i) for planet masses up to those of gap-carving planets, the analytical model is in qualitative agreement with the simulations; ii) for more massive planets, the model remains valid far from the planet, but fails to capture the correct wake structure close to the planet where it overestimates the perturbations amplitude, especially in the vicinity of the planet. We attribute this discrepancy to the absence of viscosity in the semi-analytical framework. Our results provide the basis for the development of a statistically robust fitting procedure to quantify the planet mass from observations of planetary signatures in an ALMA Large Program, and are in a paper o be submitted to MNRAS (Fasano et al.).
description: This project has received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (PROTOPLANETS, grant agreement No. 101002188).
Dense core formation by fragmentation of velocity-coherent filaments in L1517
Creators: name: Hacar, A.
name: Tafalla, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Context. Low-mass star-forming cores differ from their surrounding molecular cloud in turbulence, shape, and density structure. Aims. We aim to understand how dense cores form out of the less dense cloud material by studying the connection between these two regimes. Methods. We observed the L1517 dark cloud in C18O(1-0), N2H+(1-0), and SO(JN=32-21) with the FCRAO 14m telescope, and in the 1.2mm dust continuum with the IRAM 30m telescope. Results. Most of the gas in the cloud lies in four filaments that have typical lengths of 0.5 pc. Five starless cores are embedded in these filaments and have chemical compositions indicative of different evolutionary stages. The filaments have radial profiles of C18O(1-0) emission with a central flattened region and a power-law tail, and can be fitted approximately as isothermal, pressure-supported cylinders. The filaments, in addition, are extremely quiescent. They have subsonic internal motions and are coherent in velocity over their whole length. The large-scale motions in the filaments can be used to predict the velocity inside the cores, indicating that core formation has not decoupled the dense gas kinematically from its parental material. In two filaments, these large-scale motions consist of oscillations in the velocity centroid, and a simple kinematic model suggests that they may be related to core-forming flows. Conclusions. Core formation in L1517 seems to have occurred in two steps. First, the subsonic, velocity-coherent filaments have condensed out of the more turbulent ambient cloud. Then, the cores fragmented quasi-statically and inherited the kinematics of the filaments. Turbulence dissipation has therefore occurred mostly on scales on the order of 0.5 pc or larger, and seems to have played a small role in the formation of the individual cores.
description: 18 pages, 12 figures, minor changes, updated to match the version accepted for publication in Astronomy and Astrophysics
Metal levels in waste pickers in Brasilia, Brazil: hair and nail as exposure matrices
Creators: name: Gonçalves, Michelly Rodrigues
name: Cruvinel, Vanessa Resende Nogueira
name: Verpaele, Steven
name: Bashash, Morteza
name: Marques, Carla Pintas
name: Urbano, Mariana Ragassi
name: Paoliello, Monica Maria Bastos
name: Aschner, Michael
name: da Silva Santos, Vivian
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Cell Biology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Infectious Diseases
subject: FOS: Health sciences

description: The aim of this cross-sectional study was to compare workplace conditions and metal exposures in 431 waste pickers who worked nearby at the Estrutural Dump in Brasilia utilizing hair (n = 310) and nail (n = 355) as matrices of exposure. Waste pickers were grouped according to their workplace (open waste dump: G1 and sorting plants: G2). Hair and nail samples were collected and analyzed using ICP-MS. The work duration in the facilities was significantly different between the groups with averages of 16.46 (8.48) yrs and 9.26 (6.28) yrs for hair donors in G1 and G2, and 15.92 (7.72) yrs and 8.55 (5.77) yrs for toenail donors in G1 and G2, respectively. The arithmetic means (μg/g) of cadmium, copper, lead, and manganese in hair were significantly higher in G2 (0.076 ± 0.133; 19.61 ± 18.16; 2.27 ± .56 and 3.87 ± 5.59, respectively) compared to G1 (0.069 ± 0.235; 15.72 ± 15.18; 1.72 ± 4.04 and 3.65 ± 5.5, respectively). Concentrations of arsenic, barium, cadmium, copper, cobalt, lead, manganese, and molybdenum in nail were significantly higher in G2 (0.57 ± 0.39; 22.74 ± 42.06; 0.1 ± 0.08; 22.7 ± 51.60; 0.48 ± 0.45; 4.69 ± 9.43; 19.07 ± 20.75; 1.80 ± 1.76, respectively) compared to G1 (0.40 ± 0.28; 15.32 ± 22.31; 0.08 ± 0.11; 11.91 ± 16.25; 0.37 ± 0.37; 3.94 ± 15.04; 13.01 ± 19.08; 1.16 ± 1.80, respective. Our findings suggest that the studied population was exposed to toxic metals and indicates the need for chemical exposure prevention policies to monitor chemical risk exposures in waste pickers.
Stan aktualny i perspektywy ochrony cennych przyrodniczo obszarów w sąsiedztwie dawnej "Huty Katowice"
Creators: name: Sierka, Edyta
Publisher: name: figshare
Year: 2021
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Król M., Liebich K., Sierka E. (2006) Stan aktualny i perspektywy ochrony cennych przyrodniczo obszarów w sąsiedztwie dawnej "Huty Katowice". Środowisko i rozwój 13(1), 133-147.
Saurischia Seeley 1887
Creators: name: Machado, Elaine B.
name: Avilla, Leonardo Dos S.
name: Nava, William R.
name: Campos, Diogenes De A.
name: Kellner, Alexander W. A.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Reptilia
Saurischia

description: Saurischia Seeley, 1887
description: Published as part of Machado, Elaine B., Avilla, Leonardo Dos S., Nava, William R., Campos, Diogenes De A. & Kellner, Alexander W. A., 2013, A new titanosaur sauropod from the Late Cretaceous of Brazil, pp. 301-321 in Zootaxa 3701 (3) on page 302, DOI: 10.11646/zootaxa.3701.3.1, http://zenodo.org/record/217720
Design, synthesis, in silico toxicity prediction, molecular docking, and evaluation of novel pyrazole derivatives as potential antiproliferative agents
Creators: name: Ravula, Parameshwar
name: Vamaraju, Harinadha Babu
name: Paturi, Manichandrika
name: Chandra JN, Narendra Sharath
name: Kolli, Swetha
Publisher: name: IfADo - Leibniz Research Centre for Working Environment and Human Factors, Dortmund
Year: 2016
Subjects: pyrazolyl tetrazole acetic acids
antiproliferative activity
molecular modeling
VEGFR-2

description: A new series of pyrazole derivatives were designed by docking into vascular endothelial growth factor receptor-2 (VEGFR-2) kinase active site. The designed compounds were synthesized and evaluated for in vitro antiproliferative activity against HT-29 colon and PC-3 prostate cancer cell lines, and angioinhibitory activity in chorioallantoic membrane (CAM) model. Based on the obtained antiproliferative activity results of in vitro and CAM assay, compounds 4b, 4c, 4f, 5b, 5c and 5f were selected, and tested for anticancer activity using in vivo ehrlich ascites carcinoma (EAC) bearing mice. Compound 5c showed the highest in vitro antiproliferative activity against HT-29 and PC-3 with IC50 values of 6.43 µM and 9.83 µM respectively and comparable to reference drug Doxorubicin. Results of in vivo anticancer activity revealed that compound 5c showed the highest percentage increase in life span ( %ILS), and mean survival time (MST) with 75.13 % and 32.4 ± 0.53 days respectively. Moreover, compound 5c demonstrated significant reduction of microvessel density (MVD) in CAM assay. In silico prediction of toxicities, and drug score profiles of designed compounds are promising. A correlation made between the results obtained by antiproliferative study and molecular docking studies suggest that the synthesized compounds may be beneficial as molecular scaffolds for antiproliferative activity.
description: EXCLI Journal; 15:Doc187 ISSN 1611-2156
Phonon-induced entanglement dynamics of two donor-based charge quantum bits
Creators: name: Lastra, F.
name: Reyes, S. A.
name: Wallentowitz, S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The entanglement dynamics of a pair of donor-based charge qubits is obtained in analytical form. The disentanglement is induced by off resonant scattering of acoustical phonons in the semiconductor host. According to our results a rather unusual recovery of entanglement occurs that depends on the geometrical configuration of the qubits. In addition, for large times a non-vanishing stationary entanglement is predicted. For the cases of one and two initial excitations a simple kinetic interpretation allows for an adequate analysis of the observed dynamics. Our results also reveal a direct relation between the disentanglement rate and the inter-donor decoherence rates.
M2K: II. A Triple-Planet System Orbiting HIP 57274
Creators: name: Fischer, Debra A.
name: Gaidos, Eric
name: Howard, Andrew
name: Giguere, Matthew
name: Johnson, John A.
name: Marcy, Geoffrey W.
name: Wright, Jason T.
name: Clubb, Kelsey I.
name: Isaacson, Howard
name: Apps, Kevin
name: Lepine, Sebastien
name: Mann, Andrew
name: Moriarty, John
name: Brewer, John
name: Spronck, Julien
name: Schwab, Christian
name: Szymkowiak, Andrew
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Doppler observations from Keck Observatory have revealed a triple planet system orbiting the nearby mid-type K dwarf, HIP 57274. The inner planet, HIP 57274b, is a super-Earth with \msini\ = 11.6 \mearth (0.036 \mjup), an orbital period of 8.135 $\pm$ 0.004 d, and slightly eccentric orbit $e=0.19 \pm 0.1$. We calculate a transit probability of 6.5% for the inner planet. The second planet has \msini\ = 0.4 \mjup\ with an orbital period of 32.0 $\pm 0.02$ d in a nearly circular orbit, and $e = 0.05 \pm 0.03$. The third planet has \msini\ = 0.53 \mjup\ with an orbital period of 432 $\pm 8$ d (1.18 years) and an eccentricity $e = 0.23 \pm 0.03$. This discovery adds to the number of super Earth mass planets with $\msini < 12 \mearth\ $ that have been detected with Doppler surveys. We find that 56 $\pm 18$% super-Earths are members of multi-planet systems. This is certainly a lower limit because of observational detectability limits, yet significantly higher than the fraction of Jupiter mass exoplanets, $20 \pm 8$%, that are members of Doppler-detected, multi-planet systems.
description: 11 figures, submitte to ApJ on Sept 10, 2011
Ludolf Pelizaeus (Hg.), Images du Patrimoine mondial/Welterbebilder. Changement et persistance des images des sites du patrimoine mondial de l’UNESCO: du Maroc à la vallée du Danube – depuis l’époque médiévale à nos jours, Münster (Aschendorff) 2019
Creators: name: Bechtold, Jonas
Publisher: name: Francia-Recensio
Year: 2020

description: Ludolf Pelizaeus (Hg.), Images du Patrimoine mondial/Welterbebilder. Changement et persistance des images des sites du patrimoine mondial de l’UNESCO: du Maroc à la vallée du Danube – depuis l’époque médiévale à nos jours, Münster (Aschendorff) 2019, 391 S., Illustrationen, Karten, ISBN 978-3-402-13106-0, EUR 49,00.
description: Francia-Recensio, 2020/3
Jean-Philippe Priotti, Bertrand Haan (dir.), Une Europe des affaires (XVIe–XVIIIe siècles). Mobilités, échanges et identités, Bruxelles (Peter Lang), 2018
Creators: name: Sonkajärvi, Hanna
Publisher: name: Francia-Recensio
Year: 2020

description: Jean-Philippe Priotti, Bertrand Haan (dir.), Une Europe des affaires (XVIe–XVIIIe siècles). Mobilités, échanges et identités, Bruxelles (Peter Lang), 2018, 290 p. (Histoire des mondes modernes, 4), ISBN 978-2-8076-0825-2, EUR 47,95.
description: Francia-Recensio, 2020/3
Wigner Crystals of 229Th for Optical Excitation of the Nuclear Isomer
Creators: name: Campbell, C. J.
name: Radnaev, A. G.
name: Kuzmich, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We have produced laser-cooled Wigner crystals of 229Th3+ in a linear Paul trap. The magnetic dipole (A) and electric quadrupole (B) hyperfine constants for four low-lying electronic levels and the relative isotope shifts with respect to 232Th3+ for three low-lying optical transitions are measured. Using the hyperfine B constants in conjunction with prior atomic structure calculations, a new value of the spectroscopic nuclear electric quadrupole moment Q = 3.11(16) eb is deduced. These results are a step towards optical excitation of the low-lying isomer level in the 229Th nucleus.
Experimental Evidence of Cage Conduction Bands in Superconducting Cement 12CaO$\cdot$7Al$_2$O$_3$
Creators: name: McLeod, J. A.
name: Buling, A.
name: Kurmaev, E. Z.
name: Sushko, P. V.
name: Neumann, M.
name: Finkelstein, L. D.
name: Kim, S. -W.
name: Hosono, H.
name: Moewes, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Natural 12CaO$\cdot$7Al$_2$O$_3$ (C12A7) is a wide bandgap insulator, but conductivity can be realized by introducing oxygen deficiency. Currently, there are two competing models explaining conductivity in oxygen-deficient C12A7, one involving the electron transfer via a "cage conduction band" inside the nominal band gap, the other involving electron hopping along framework lattice sites. To help resolve this debate, we probe insulating and conducting C12A7 with X-ray emission, X-ray absorption, and X-ray photoemission spectroscopy, which provide a full picture of both the valence and conduction band edges in these materials. These measurements suggest the existence of a narrow conduction band between the main conduction and valence bands common in both conducting and insulating C12A7 and support the theory that free electrons in oxygen-deficient C12A7 occupy the low-energy states of this narrow band. Our measurements are corroborated with density functional theory calculations.
description: 20 pages, 6 figures
CP violation of Extended Higgs sector and Its impact on D^0 -> mu^+ mu^- decay
Creators: name: Kimura, Daiji
name: Lee, Kang Young
name: Morozumi, Takuya
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the impact of the CP violation of the extra Higgs sector on $D^0$ decay. The CP even and CP odd neutral Higgs mixing of the two Higgs doublet model is studied and we show how the CP violating effect of the mixing may lead to the longitudinal muon polarization asymmetry of $D^0 \to μ^+ μ^-$. The asymmetry of the short-distance contribution is sensitive to the CP violating phase of the extended Higgs sector.
description: 7 pages, 2 figures, presented as a poster in GUT2012 (YITP,Kyoto,15-17 March2012)
Environment-assisted cracking of iron aluminide alloy
Creators: name: Chiu, Henry C. W.
Publisher: name: University of Calgary
Year: 1995
Subjects: subject: TA 479 A4 C55 1995
subject: Iron - Aluminum alloys - Cracking
subject: Aluminum alloys - Cracking
subject: Alloys - Cracking

description: Bibliography: p. 114-120.
John Aberth, Contesting the Middle Ages. Debates that are Changing our Narrative of Medieval History, London (Routledge) 2018
Creators: name: Bachrach, David S.
Publisher: name: Francia-Recensio
Year: 2020

description: John Aberth, Contesting the Middle Ages. Debates that are Changing our Narrative of Medieval History, London (Routledge) 2018, XVIII–344 p., 3 fig., 4 maps, ISBN 978-0-415-72929-1, GBP 105,00.
description: Francia-Recensio, 2020/3