cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The bulge masses of TDE host galaxies and their scaling with black hole mass
Creators: name: Ramsden, Paige
name: Lanning, Daniel
name: Nicholl, Matt
name: McGee, Sean L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Tidal disruption events (TDEs) provide a means to probe the low end of the supermassive black hole (SMBH) mass distribution, as they are only observable below the Hills mass ($\lesssim 10^8$ M$_\odot$). Here we attempt to calibrate the scaling of SMBH mass with host galaxy bulge mass, enabling SMBH masses to be estimated for large TDE samples without the need for follow-up observations or extrapolations of relations based on high-mass samples. We derive host galaxy masses using Prospector fits to the UV-MIR spectral energy distributions for the hosts of 29 well-observed TDEs with BH mass estimates from MOSFiT. We then conduct detailed bulge/disk decomposition using SDSS and PanSTARRS imaging, and provide a catalog of bulge masses. We measure a positive correlation between SMBH and bulge mass for the TDE sample, with a power-law slope of 0.28 and significance $p=0.06$ (Spearmans) and $p=0.05$ (Pearsons), and an intrinsic scatter of 0.2 dex. Applying MC resampling and bootstrapping, we find a more conservative estimate of the slope is $0.18\pm0.11$, dominated by the systematic errors from Prospector and MOSFiT. This is shallower than the slope at high SMBH mass, which may be due to a bias in the TDE sample towards lower mass BHs that can more easily disrupt low-mass stars outside of the event horizon. When combining the TDE sample with that of the high mass regime, we find that TDEs are successful in extending the SMBH - stellar mass relationship further down the mass spectrum and provide a relationship across the full range of SMBH masses.
description: Updated to match accepted MNRAS version
Temperature gradient-induced magnetization reversal of single ferromagnetic nanowires
Creators: name: Michel, Ann-Kathrin
name: Niemann, Anna Corinna
name: Boehnert, Tim
name: Martens, Stephan
name: Moreno, Josep M. Montero
name: Goerlitz, Detlef
name: Zierold, Robert
name: Reith, Heiko
name: Vega, Victor
name: Prida, Victor M.
name: Thomas, Andy
name: Gooth, Johannes
name: Nielsch, Kornelius
Publisher: name: Bristol : IOP Publ.
Year: 2017
Subjects: subject: Magnetic nanowires
subject: Magneto-optical Kerr effect
subject: Nanoelectronics
subject: 530

description: In this study, we investigate the temperature- and temperature gradient-dependent magnetization reversal process of individual, single-domain Co39Ni61 and Fe15Ni85 ferromagnetic nanowires via the magneto-optical Kerr effect and magnetoresistance measurements. While the coercive fields (HC) and therefore the magnetic switching fields (HSW) generally decrease under isothermal conditions at elevated base temperatures (Tbase), temperature gradients (ΔT) along the nanowires lead to an increased switching field of up to 15% for ΔT = 300 K in Co39Ni61 nanowires. This enhancement is attributed to a stress-induced, magneto-elastic anisotropy term due to an applied temperature gradient along the nanowire that counteracts the thermally assisted magnetization reversal process. Our results demonstrate that a careful distinction between locally elevated temperatures and temperature gradients has to be made in future heat-assisted magnetic recording devices.
Supporting second language acquisition of bilingual preschool children through professionalization of caregivers in specialized preschool programs
Creators: name: Boese, Jannika
name: Busch, Julian
name: Leyendecker, Birgit
name: Scherger, Anna-Lena
Publisher: name: TU Dortmund
Year: 2023
Subjects: subject: Professionalization
subject: Language support
subject: Early education
subject: Dialogic reading
subject: Bilingual children
subject: Specialized preschool programs
subject: 360
subject: 370

description: The aim of the present study was to investigate the effectiveness of a training program on language support strategies and dialogic reading for caregivers working in specialized preschool programs. These programs serve children without a regular childcare place who grow up with one or more languages other than German as the environmental language. Recent studies investigating the development of children attending these programs found only moderate improvements in German receptive language skills, while language support quality of the programs was rated as average. We assessed receptive second language competencies in vocabulary and grammar of n = 48 children and language support competencies of n = 15 caregivers using an interventional pre-posttest design. Receptive vocabulary skills of children supported by trained caregivers (intervention group) were compared to children supported by untrained caregivers (control group, n = 43). We found that both children’s and caregivers’ competencies increased from pre- to posttest, whereas the control group’s receptive vocabulary skills did not increase noticeably. The caregivers’ language support competencies influenced the increase of children’s receptive grammar but not vocabulary skills. The comparison between the intervention group and control group consistently showed no effect of group membership on children’s receptive vocabulary acquisition over time. Since the control group data came from a secondary analysis, only receptive vocabulary skills could be compared. The preliminary results of our study suggest that a caregivers’ training on language support strategies and dialogic reading in everyday educational situations support bilingual children’s grammar acquisition.
description: Frontiers in Psychology;14
Unravelling the components of a multi-thermal coronal loop using magnetohydrodynamic seismology
Creators: name: Prasad, S. Krishna
name: Jess, D. B.
name: Klimchuk, J. A.
name: Banerjee, D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Coronal loops, constituting the basic building blocks of the active Sun, serve as primary targets to help understand the mechanisms responsible for maintaining multi-million Kelvin temperatures in the solar and stellar coronae. Despite significant advances in observations and theory, our knowledge on the fundamental properties of these structures is limited. Here, we present unprecedented observations of accelerating slow magnetoacoustic waves along a coronal loop that show differential propagation speeds in two distinct temperature channels, revealing the multi-stranded and multi-thermal nature of the loop. Utilizing the observed speeds and employing nonlinear force-free magnetic field extrapolations, we derive the actual temperature variation along the loop in both channels, and thus are able to resolve two individual components of the multi-thermal loop for the first time. The obtained positive temperature gradients indicate uniform heating along the loop, rather than isolated footpoint heating.
description: accepted for publication in ApJ
The Influence of the Composition of Ru100−xAlx (x = 50, 55, 60, 67) Thin Films on Their Thermal Stability
Creators: name: Seifert, Marietta
name: Rane, Gayatri K.
name: Oswald, Steffen
name: Menzel, Siegfried B.
name: Gemming, Thomas
Publisher: name: Basel : MDPI
Year: 2017
Subjects: subject: High-temperature stability
subject: RuAl thin film
subject: Surface acoustic waves
subject: 600

description: RuAl thin films possess a high potential as a high temperature stable metallization for surface acoustic wave devices. During the annealing process of the Ru-Al films, Al2O3 is formed at the surface of the films even under high vacuum conditions, so that the composition of a deposited Ru50Al50 film is shifted to a Ru-rich alloy. To compensate for this effect, the Al content is systematically increased during the deposition of the Ru-Al films. Three Al-rich alloys—Ru45Al55, Ru40Al60 and Ru33Al67—were analyzed concerning their behavior after high temperature treatment under high vacuum and air conditions in comparison to the initial Ru50Al50 sample. Although the films’ cross sections show a more homogeneous structure in the case of the Al-rich films, the RuAl phase formation is reduced with increasing Al content.
Single NV centers as sensors for radio-frequency fields
Creators: name: Zhang, Jingfu
name: Suter, Dieter
Publisher: name: TU Dortmund
Year: 2023
Subjects: subject: Quantum control
subject: Quantum sensing
subject: Nitrogen vacancy centers in diamond
subject: 530

description: We show that a single electron spin can serve as a sensor for radio-frequency (rf) magnetic fields. The longitudinal and transverse components of the rf field can be extracted from the phase acquired during free evolution of the spin coherence. In our experimental demonstration, a single electron spin of an NV center in diamond serves as an atomic size of two components of an rf field.
description: Physical review research;5(2)
Erasure conversion for fault-tolerant quantum computing in alkaline earth Rydberg atom arrays
Creators: name: Wu, Yue
name: Kolkowitz, Shimon
name: Puri, Shruti
name: Thompson, Jeff D
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Executing quantum algorithms on error-corrected logical qubits is a critical step for scalable quantum computing, but the requisite numbers of qubits and physical error rates are demanding for current experimental hardware. Recently, the development of error correcting codes tailored to particular physical noise models has helped relax these requirements. In this work, we propose a qubit encoding and gate protocol for ${}^{171}$Yb neutral atom qubits that converts the dominant physical errors into erasures, that is, errors in known locations. The key idea is to encode qubits in a metastable electronic level, such that gate errors predominantly result in transitions to disjoint subspaces whose populations can be continuously monitored via fluorescence. We estimate that 98% of errors can be converted into erasures. We quantify the benefit of this approach via circuit-level simulations of the surface code, finding a threshold increase from 0.937% to 4.15%. We also observe a larger code distance near the threshold, leading to a faster decrease in the logical error rate for the same number of physical qubits, which is important for near-term implementations. Erasure conversion should benefit any error correcting code, and may also be applied to design new gates and encodings in other qubit platforms.
Detecting continuous gravitational waves with superfluid $^4$He
Creators: name: Singh, S.
name: De Lorenzo, L. A.
name: Pikovski, I.
name: Schwab, K. C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Other Condensed Matter (cond-mat.other)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Direct detection of gravitational waves is opening a new window onto our universe. Here, we study the sensitivity to continuous-wave strain fields of a kg-scale optomechanical system formed by the acoustic motion of superfluid helium-4 parametrically coupled to a superconducting microwave cavity. This narrowband detection scheme can operate at very high $Q$-factors, while the resonant frequency is tunable through pressurization of the helium in the 0.1-1.5 kHz range. The detector can therefore be tuned to a variety of astrophysical sources and can remain sensitive to a particular source over a long period of time. For reasonable experimental parameters, we find that strain fields on the order of $h\sim 10^{-23} /\sqrt{\rm Hz}$ are detectable. We show that the proposed system can significantly improve the limits on gravitational wave strain from nearby pulsars within a few months of integration time.
Hybrid Analog/Digital Precoding for Downlink Massive MIMO LEO Satellite Communications
Creators: name: You, Li
name: Qiang, Xiaoyu
name: Li, Ke-Xin
name: Tsinos, Christos G.
name: Wang, Wenjin
name: Gao, Xiqi
name: Ottersten, Björn
Publisher: name: arXiv
Year: 2022
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Massive multiple-input multiple-output (MIMO) is promising for low earth orbit (LEO) satellite communications due to the potential in enhancing the spectral efficiency. However, the conventional fully digital precoding architectures might lead to high implementation complexity and energy consumption. In this paper, hybrid analog/digital precoding solutions are developed for the downlink operation in LEO massive MIMO satellite communications, by exploiting the slow-varying statistical channel state information (CSI) at the transmitter. First, we formulate the hybrid precoder design as an energy efficiency (EE) maximization problem by considering both the continuous and discrete phase shift networks for implementing the analog precoder. The cases of both the fully and the partially connected architectures are considered. Since the EE optimization problem is nonconvex, it is in general difficult to solve. To make the EE maximization problem tractable, we apply a closed-form tight upper bound to approximate the ergodic rate. Then, we develop an efficient algorithm to obtain the fully digital precoders. Based on which, we further develop two different efficient algorithmic solutions to compute the hybrid precoders for the fully and the partially connected architectures, respectively. Simulation results show that the proposed approaches achieve significant EE performance gains over the existing baselines, especially when the discrete phase shift network is employed for analog precoding.
description: to appear in IEEE Transactions on Wireless Communications
Ardops Miller 1906
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Phyllostomidae
Ardops

description: Ardops Miller, 1906. Proc. Biol. Soc. Wash., 19:84. REVIEWED BY: G. S. Morgan (GSM). COMMENT: Revised by Jones and Schwartz, 1967, Proc. U.S. Nat. Mus., 124:1- 13. Included under Stenoderma by Varona, 1974:24-26, and by Simpson, 1945:58; but see Jones and Carter, 1976:28. ISIS NUMBER: 5301405008024000000.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Chiroptera, pp. 111-215 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 151, DOI: 10.5281/zenodo.7352990
description: {"references": ["Schwartz, A., and J. K. Jones, Jr. 1967. Bredin-Archbold-Smithsonian Biological Survey of Dominica. 7. Review of bats of the endemic Antillean genus Monophyllus. Proceedings of the United States National Museum, 124 (3635): 1 - 20.", "Varona, L. S. 1974. Catalogo de los mamiferos vivientes y extinguidos de las Antillas. Instituto de Zoologia, Academia de Ciencias de Cuba (Havana), 139 pp.", "Simpson, G. G. 1945. The principles of classification and a classification of mammals. Bulletin of the American Museum of Natural History, 85: 1 - 350.", "Jones, J. K., Jr., and D. C. Carter. 1976. Annotated checklist, with keys to subfamilies and genera. Part I. Pp. 7 - 38, in Biology of bats of the New World family Phyllostomatidae. Part I (R. J. Baker, J. K. Jones, Jr., and D. C. Carter, eds.). Special Publications, The Museum, Texas Tech University Press, 10: 1 - 218."]}
Modeling Kleinian cosmology with electronic metamaterials
Creators: name: Figueiredo, David
name: Gomes, Felipe Azevedo
name: Fumeron, Sébastien
name: Berche, Bertrand
name: Moraes, Fernando
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: This paper deals with the propagation of Klein-Gordon particles in flat background spacetime exhibiting discontinuous metric changes from a Lorentzian signature (-,+,+,+) to a Kleinian signature (-,+,+,-). A formal analogy with the propagation of electrons at a junction between an anisotropic semiconductor and an electronic metamaterial is presented. From that analogy, we study the dynamics of these particles falling onto planar boundary interfaces between these two families of media and show a mirror-like behavior for the particle flux. Finally, the case of a double junction of finite thickness is examined and the possibility of tunneling through it is discussed. A physical link between the metamaterial and the Kleinian slabs is found by calculating the time of flight of the respective traversing particles.
description: 9 pages, 9 figures
The Aerosol Deposition Method: A Modified Aerosol Generation Unit to Improve Coating Quality
Creators: name: Hanft, Dominik
name: Glosse, Philipp
name: Denneler, Stefan
name: Berthold, Thomas
name: Oomen, Marijn
name: Kauffmann-Weiss, Sandra
name: Weis, Frederik
name: Häßler, Wolfgang
name: Holzapfel, Bernhard
name: Moos, Ralf
Publisher: name: Basel : MDPI
Year: 2018
Subjects: subject: Aerosol depositionmethod (AD)
subject: Aerosol generator
subject: Brush generator
subject: Magnesium diboride (MgB2)
subject: Powder dispersion
subject: Roomtemperature impact consolidation
subject: 600

description: Owing to its ability to produce dense thick-films at room temperature directly from a ceramic powder, the Aerosol Deposition Method (AD) possesses a unique feature in ceramics processing. For this technology, the aerosol generation of particles is a decisive part of reliable process control. However, there has only been a small amount of work published addressing this topic. In this work, we compare the aerosolization and deposition behavior of a fluidized bed generator with an aerosol generator with the rotary brush principle. While film properties very much depend on deposition time for the fluidized bed generator, films produced with the brush generator show a constant film profile, and their film thickness correlates with the controllable aerosol concentration and the duration of deposition. This type of aerosol generation may improve the setup towards a more reliable AD process.
Three-dimensional structure and formation mechanism of biskyrmions in uniaxial ferromagnets
Creators: name: Wang, Cheng-Jie
name: Wang, Pengfei
name: Zhou, Yan
name: Wang, Wenhong
name: Shi, Fazhan
name: Du, Jiangfeng
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Magnetic biskyrmions are observed in experiments but their existences are still under debate. In this work, we present the existence of biskyrmions in a magnetic film with tilted uniaxial anisotropy via micromagnetic simulations. We find biskyrmions and bubbles share a unified three-dimensional structure, in which the relative position of two intrinsic Bloch points dominates the two-dimensional topological property in the film middle. The film edge can drive Bloch points and transform bubbles into biskyrmions via the demagnetizing field. This mechanism is found in the formation process of biskyrmions in confined geometry under zero field. Our work clarifies the structure and formation mechanism of biskyrmions, emphasizing the three-dimensional aspect of skyrmion-related nanostructures.
description: 6 pages, 4 figures
GMC Evolution in a Barred Spiral Galaxy with Star Formation and Thermal Feedback
Creators: name: Fujimoto, Yusuke
name: Bryan, Greg L.
name: Tasker, Elizabeth J.
name: Habe, Asao
name: Simpson, Christine M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We explore the impact of star formation and thermal stellar feedback on the giant molecular cloud (GMC) population forming in a M83-type barred spiral galaxy. We compare three high-resolution simulations (1.5 pc cell size) with different star formation/feedback models: one with no star formation, one with star formation but no feedback, and one with star formation and thermal energy injection. We analyze the resulting population of clouds, finding that we can identify the same population of massive, virialized clouds and transient, low-surface density clouds found in our previous work (that did not include star formation or feedback). Star formation and feedback can affect the mix of clouds we identify. In particular, star formation alone simply converts dense cloud gas into stars with only a small change to the cloud populations, principally resulting in a slight decrease in the transient population. Feedback, however, has a stronger impact: while it is not generally sufficient to entirely destroy the clouds, it does eject gas out of them, increasing the gas density in the inter-cloud region. This decreases the number of massive clouds, but substantially increases the transient cloud population. We also find that feedback tends to drive a net radial inflow of massive clouds, leading to an increase in the star formation rate in the bar region. We examine a number of possible reasons for this and conclude that it is possible that the drag force from the enhanced intercloud density could be responsible.
description: 19 pages, 16 figures, accepted for publication in MNRAS
Ardops nichollsi
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Phyllostomidae
Ardops
Ardops nichollsi

description: Ardops nichollsi (Thomas, 1891). Ann. Mag. Nat. Hist., ser. 6, 7:529. TYPE LOCALITY: Dominica (Lesser Antilles). DISTRIBUTION: Lesser Antilles, from St. Eustatius to St. Vincent. COMMENT: Includes montserratensis, luciae, and annectens; see Jones and Schwartz, 1967, Proc. U.S. Nat. Mus., 124:1- 13. Reviewed by Jones and Genoways, 1973, Mamm. Species, 24:1-2. ISIS NUMBER: 5301405008024001001.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Chiroptera, pp. 111-215 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 151, DOI: 10.5281/zenodo.7352990
description: {"references": ["Schwartz, A., and J. K. Jones, Jr. 1967. Bredin-Archbold-Smithsonian Biological Survey of Dominica. 7. Review of bats of the endemic Antillean genus Monophyllus. Proceedings of the United States National Museum, 124 (3635): 1 - 20.", "Jones, J. K., Jr., and H. H. Genoways. 1973. Ardops nichollsi. Mammalian Species, 24: 1 - 2."]}
In Situ Room Temperature Electron-Beam Driven Graphene Growth from Hydrocarbon Contamination in a Transmission Electron Microscope
Creators: name: Rummeli, Mark H.
name: Pan, Yumo
name: Zhao, Liang
name: Gao, Jing
name: Ta, Huy Q.
name: Martinez, Ignacio G.
name: Mendes, Rafael G.
name: Gemming, Thomas
name: Fu, Lei
name: Bachmatiuk, Alicja
name: Liu, Zhongfan
Publisher: name: Basel : MDPI
Year: 2018
Subjects: subject: Graphene
subject: In situ TEM
subject: Synthesis
subject: 600

description: The excitement of graphene (as well as 2D materials in general) has generated numerous procedures for the fabrication of graphene. Here we present a mini-review on a rather less known, but attractive, in situ means to fabricate graphene inside a transmission electron microscope (TEM). This is achieved in a conventional TEM (viz. no sophisticated specimen holders or microscopes are required) and takes advantage of inherent hydrocarbon contamination as a carbon source. Both catalyst free and single atom catalyst approaches are reviewed. An advantage of this technique is that not only can the growth process be imaged in situ, but this can also be achieved with atomic resolution. Moreover, in the future, one can anticipate such approaches enabling the growth of nano-materials with atomic precision.
Quantifying navigation complexity in transportation networks
Creators: name: Jiang, Zhuojun
name: Dong, Lei
name: Wu, Lun
name: Liu, Yu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: The complexity of navigation in cities has increased with the expansion of urban areas, creating challenging transportation problems that drive many studies on the navigability of networks. However, due to the lack of individual mobility data, large-scale empirical analysis of the wayfinder's real-world navigation is rare. Here, using 225 million subway trips from three major cities in China, we quantify navigation difficulty from an information perspective. Our results reveal that 1) people conserve a small number of repeatedly used routes, and 2) the navigation information in the subnetworks formed by those routes is much smaller than the theoretical value in the global network, suggesting that the decision cost for actual trips is significantly smaller than the theoretical upper limit found in previous studies. By modeling routing behaviors in growing networks, we show that while the global network becomes difficult to navigate, navigability can be improved in subnetworks. We further present a universal linear relationship between the empirical and theoretical search information, which allows the two metrics to predict each other. Our findings demonstrate how large-scale observations can quantify real-world navigation behaviors and aid in evaluating transportation planning.
Transverse velocity shifts in protostellar jets: rotation or velocity asymmetries?
Creators: name: De Colle, Fabio
name: Cerqueira, Adriano H.
name: Riera, Angels
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Observations of several protostellar jets show systematic differences in radial velocity transverse to the jet propagation direction, which have been interpreted as evidence of rotation in the jets. In this paper we discuss the origin of these velocity shifts, and show that they could be originated by rotation in the flow, or by side to side asymmetries in the shock velocity, which could be due to asymmetries in the jet ejection velocity/density or in the ambient medium. For typical poloidal jet velocities (~ 100-200 km/s), an asymmetry >~ 10% can produce velocity shifts comparable to those observed. We also present three dimensional numerical simulations of rotating, precessing and asymmetric jets, and show that, even though for a given jet there is a clear degeneracy between these effects, a statistical analysis of jets with different inclination angles can help to distinguish between the alternative origins of transverse velocity shifts. Our analysis indicate that side to side velocities asymmetries could represent an important contribution to transverse velocity shifts, being the most important contributor for large jet inclination angles (with respect the the plane of the sky), and can not be neglected when interpreting the observations.
description: ApJ, in press
High-Energy Non-Thermal and Thermal Emission from GRB141207A detected by Fermi
Creators: name: Arimoto, Makoto
name: Asano, Katsuaki
name: Ohno, Masanori
name: Veres, Péter
name: Axelsson, Magnus
name: Bissaldi, Elisabetta
name: Tachibana, Yutaro
name: Kawai, Nobuyuki
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The bright long gamma-ray burst GRB 141207A was observed by the {\it Fermi Gamma-ray Space Telescope} and detected by both instruments onboard. The observations show that the spectrum in the prompt phase is not well described by the canonical empirical Band function alone, and that an additional power-law component is needed. In the early phase of the prompt emission, a modified blackbody with a hard low-energy photon index ($α$ = +0.2 -- +0.4) is detected, which suggests a photospheric origin. In a finely time-resolved analysis, the spectra are also well fitted by the modified blackbody combined with a power-law function. We discuss the physical parameters of the photosphere such as the bulk Lorentz factor of the relativistic flow and the radius. We also discuss the physical origin of the extra power-law component observed during the prompt phase in the context of different models such as leptonic and hadronic scenarios in the internal shock regime and synchrotron emission in the external forward shock. In the afterglow phase, the temporal and spectral behaviors of the temporally extended high-energy emission and the fading X-ray emission detected by XRT on-board {\it Swift} are consistent with synchrotron emission in a radiative external forward shock.
description: 21 pages, 10 figures, 3 tables, accepted for the publication in ApJ
The Effects of Excess Co on the Phase Composition and Thermoelectric Properties of Half-Heusler NbCoSb
Creators: name: Huang, Lihong
name: Wang, Junchen
name: Chen, Xi
name: He, Ran
name: Shuai, Jing
name: Zhang, Jianjun
name: Zhang, Qinyong
name: Ren, Zhifeng
Publisher: name: Basel : MDPI
Year: 2018
Subjects: subject: Excess Co
subject: Half-Heusler
subject: NbCoSb
subject: Thermoelectric performance
subject: 600

description: NbCoSb with nominal 19 valence electrons, and is supposed to be metallic, has recently been reported to also exhibit the thermoelectric properties of a heavily doped n-type semiconductor. In this study, we prepared Co-rich NbCo1+xSb samples (x = 0, 0.2, 0.3, 0.4, 0.5), and their phase compositions, microstructures and thermoelectric properties were investigated. The Seebeck coefficient increased a great deal with increasing x, due to decreasing carrier concentration, and the total thermal conductivity reduced mainly because of declining κe. Finally, a peak thermoelectric figure of merit, ZT, was about 0.46 for NbCo1.3Sb at 973 K. This enhancement was mainly attributed to the reduction of electric thermal conductivity and the increase of Seebeck coefficient. The excess Co had effects on the carrier concentration, deformation potential Edef and DOS effective mass m*. Adding an excessive amount of Co leads to a very high Edef, which was detrimental for transport characteristics.
18F-FSPG Synthesis-Witney Lab KCL - PROTECTED.tra
Creators: name: Farooq, Rizwan
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 320215
subject: Nuclear medicine
classificationCode: 340605
subject: Molecular imaging (incl. electron microscopy and neutron diffraction)

description: Synthesis sequence for [18F]FSPG on Trasis AllinOne.
Efficient extraction of zero-phonon-line photons from single nitrogen-vacancy centers in an integrated GaP-on-diamond platform
Creators: name: Gould, Michael
name: Schmidgall, Emma R.
name: Dadgostar, Shabnam
name: Hatami, Fariba
name: Fu, Kai-Mei C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Scaling beyond two-node quantum networks using nitrogen vacancy (NV) centers in diamond is limited by the low probability of collecting zero phonon line (ZPL) photons from single centers. Here, we demonstrate GaP-on-diamond disk resonators which resonantly couple ZPL photons from single NV centers to single-mode waveguides. In these devices, the probability of a single NV center emitting a ZPL photon into the guided waveguide mode after optical excitation can reach 9%, due to a combination of resonant enhancement of the ZPL emission and efficient coupling between the resonator and waveguide. We verify the single-photon nature of the emission and experimentally demonstrate both high in-waveguide photon numbers and substantial Purcell enhancement for a set of devices. These devices may enable scalable integrated quantum networks based on NV centers.
description: 8 pages, 6 figures (Including Supplemental Info)
Ariteus Gray 1838
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Phyllostomidae
Ariteus

description: Ariteus Gray, 1838. Mag. Zool. Bot., 2:491. REVIEWED BY: G. S. Morgan (GSM). COMMENT: Included as a subgenus of Stenoderma by Varona, 1974:24, and Simpson, 1945:58; but see Jones and Carter, 1976:29. ISIS NUMBER: 5301405008025000000.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Chiroptera, pp. 111-215 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 151, DOI: 10.5281/zenodo.7352990
description: {"references": ["Varona, L. S. 1974. Catalogo de los mamiferos vivientes y extinguidos de las Antillas. Instituto de Zoologia, Academia de Ciencias de Cuba (Havana), 139 pp.", "Simpson, G. G. 1945. The principles of classification and a classification of mammals. Bulletin of the American Museum of Natural History, 85: 1 - 350.", "Jones, J. K., Jr., and D. C. Carter. 1976. Annotated checklist, with keys to subfamilies and genera. Part I. Pp. 7 - 38, in Biology of bats of the New World family Phyllostomatidae. Part I (R. J. Baker, J. K. Jones, Jr., and D. C. Carter, eds.). Special Publications, The Museum, Texas Tech University Press, 10: 1 - 218."]}
Effective perihelion advance and potentials in a conformastatic background with magnetic field
Creators: name: Capistrano, Abraão J. S.
name: Gutiérrez-Piñeres, Antonio C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: An Exact solution of the Einstein-Maxwell field equations for a conformastatic metric with magnetized sources is study. In this context, effective potential are studied in order to understand the dynamics of the magnetic field in galaxies. We derive the equations of motion for neutral and charged particles in a spacetime background characterized by this class of solutions. In this particular case, we investigate the main physical properties of equatorial circular orbits and related effective potentials. In addition, we obtain an effective analytic expression for the perihelion advance of test particles. Our theoretical predictions are compared with the observational data calibrated with the ephemerides of the planets of the Solar system and the Moon (EPM2011). We show that, in general, the magnetic punctual mass predicts values that are in better agreement with observations than the values predicted in Einstein gravity alone.
description: 11 pages, 6 figures. arXiv admin note: substantial text overlap with arXiv:1601.00746
Constraining the topological Gauss-Bonnet coupling from GW150914
Creators: name: Chakravarti, Kabir
name: Ghosh, Rajes
name: Sarkar, Sudipta
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recent gravitational wave observation based on the data from GW150914 has confirmed Hawking's area theorem and estimated the increase in total horizon area during a merger process of two Kerr black holes. We use this result and the validity of the second law to obtain the first observational bound on the 4D topological Gauss-Bonnet coupling as $γ\lesssim 2.804^{+7.946}_{-1.169} \times 10^{9}\, m^2$ with $95 \%$ credibility.
description: Title and figure changed, table added. Manuscript has been modified to match the published version in Physical Review D as a Letter. Main results of the paper remains the same, although presentation has improved
Revealing Grain Boundary Sliding from Textures of a Deformed Nanocrystalline Pd–Au Alloy
Creators: name: Toth, Laszlo S.
name: Skrotzki, Werner
name: Zhao, Yajun
name: Pukenas, Aurimas
name: Braun, Christian
name: Birringer, Rainer
Publisher: name: Basel : MDPI
Year: 2018
Subjects: subject: Grain boundary sliding
subject: Pd-10Au alloy
subject: Shear compression
subject: Texture
subject: 600

description: Employing a recent modeling scheme for grain boundary sliding [Zhao et al. Adv. Eng. Mater. 2017, doi:10.1002/adem.201700212], crystallographic textures were simulated for nanocrystalline fcc metals deformed in shear compression. It is shown that, as grain boundary sliding increases, the texture strength decreases while the signature of the texture type remains the same. Grain boundary sliding affects the texture components differently with respect to intensity and angular position. A comparison of a simulation and an experiment on a Pd–10 atom % Au alloy with a 15 nm grain size reveals that, at room temperature, the predominant deformation mode is grain boundary sliding contributing to strain by about 60%.
Development of a Bonner Sphere Neutron Spectrometer from a Commercial Neutron Dosimeter
Creators: name: Chu, M. C.
name: Fung, K. Y.
name: Kwok, T.
name: Leung, J. K. C.
name: Lin, Y. C.
name: Liu, H.
name: Luk, K. B.
name: Ngai, H. Y.
name: Pun, C. S. J.
name: Wong, H. L. H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Bonner Spheres have been used widely for the measurement of neutron spectra with neutron energies ranged from thermal up to at least 20 MeV. A Bonner Sphere neutron spectrometer (BSS) was developed by extending a Berthold LB 6411 neutron-dose-rate meter. The BSS consists of a $^{3}$He thermal-neutron detector with integrated electronics, a set of eight polyethylene spherical shells and two optional lead shells of various sizes. The response matrix of the BSS was calculated with GEANT4 Monte Carlo simulation. The BSS had a calibration uncertainty of $\pm 8.6\%$ and a detector background rate of $(1.57 \pm 0.04) \times 10^{-3}$ s$^{-1}$. A spectral unfolding code NSUGA was developed. The NSUGA code utilizes genetic algorithms and has been shown to perform well in the absence of a priori information.
description: 25 pages, 14 figures, 5 tables
Optical diagnostics of laser-produced plasmas
Creators: name: Harilal, S. S.
name: Phillips, M. C.
name: Froula, D. H.
name: Anoop, K. K.
name: Issac, R. C.
name: Beg, F. N.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Laser-produced plasmas (LPPs) engulf exotic and complex conditions ranging in temperature, density, pressure, magnetic and electric fields, charge states, charged particle kinetics, and gas-phase reactions, based on the irradiation conditions, target geometries, and the background cover gas. The application potential of the LPP is so diverse that it generates considerable interest for both basic and applied research areas. Although most of the traditional characterization techniques developed for other plasma sources can be used to characterize the LPPs, care must be taken to interpret the results because of their small size, transient nature, and inhomogeneities. The existence of the large spatiotemporal density and temperature gradients often necessitates non-uniform weighted averaging over distance and time. Among the various plasma characterization tools, optical-based diagnostic tools play a key role in the accurate measurements of LPP parameters. The optical toolbox contains optical probing methods (Thomson scattering, shadowgraphy, Schlieren, interferometry, velocimetry, and deflectometry), optical spectroscopy (emission, absorption, and fluorescence), and passive and active imaging. Each technique is useful for measuring a specific property, and its use is limited to a certain time span during the LPP evolution because of the sensitivity issues related to the selected measuring tool. Therefore, multiple diagnostic tools are essential for a comprehensive insight into the entire plasma behavior. In recent times, the improvements in performance in the lasers and detector systems expanded the capability of the aforementioned passive and active diagnostics tools. This review provides an overview of optical diagnostic tools frequently employed for the characterization of the LPPs and emphasizes techniques, associated assumptions, and challenges.
description: 44 pages, 31 figures
Ariteus flavescens
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Phyllostomidae
Ariteus
Ariteus flavescens

description: Ariteus flavescens (Gray, 1831). Zool. Misc., 1:37. TYPE LOCALITY: Not designated in original publication. DISTRIBUTION: Jamaica. ISIS NUMBER: 5301405008025001001.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Chiroptera, pp. 111-215 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 151, DOI: 10.5281/zenodo.7352990
MPEC 2023-N21 : 2020 NC
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Tidal disruption of star clusters in galaxy formation simulations
Creators: name: Meng, Xi
name: Gnedin, Oleg Y.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the evolution of the tidal field experienced by massive star clusters using cosmological simulations of Milky Way-sized galaxies. Clusters in our simulations experience the strongest tidal force in the first few hundred Myr after formation, when the maximum eigenvalue of the tidal tensor reaches several times $10^4$ Gyr$^{-2}$. After about 1 Gyr the tidal field plateaus at a lower value, with the median $λ_{\rm m} \sim 3 \times 10^3$ Gyr$^{-2}$. The fraction of time clusters spend in high tidal strength ($λ_{\rm m} > 3 \times 10^4$ Gyr$^{-2}$) regions also decreases with their age from $\sim$20% immediately after formation to less than 1% after 1 Gyr. At early ages both the in situ and ex situ clusters experience similar tidal fields, while at older ages the in situ clusters in general experience stronger tidal field due to their lower orbits in host galaxy. This difference is reflected in the survival of clusters: we looked into cluster disruption calculated in simulation runtime and found that ex situ star clusters of the same initial mass typically end up with higher bound fraction at the last available simulation snapshot than the in situ ones.
description: 13 pages, 13 figures, accepted by MNRAS
A Formal Resolution Strategy for Operation-Based Conicts in Model Versioning Using Graph Modications
Creators: name: Ehrig, Hartmut
name: Ermel, Claudia
name: Taentzer, Gabriele
Publisher: name: Technische Universität Berlin
Year: 2011
Subjects: subject: 004 Datenverarbeitung; Informatik
subject: graph modifications
subject: Local-Church-Rosser Theorem
subject: operation-based conflicts
subject: modeling language

description: In model-driven engineering, models are primary artifacts and can evolve heavily during their life cycle. Hence, versioning of models is a key technique which has to be offered by an integrated development environment for model-driven engineering. In contrast to textbased versioning systems, our approach takes abstract syntax structures in model states and operational features into account. Considering the abstract syntax of models as graphs, we define a model revision by a span G H, called graph modification, where G and H are the old and new versions, respectively, and D the common subgraph that remains unchanged. Based on notions of behavioural equivalence and parallel independence of graph modifications, we are able to show a Local-Church- Rosser Theorem for graph modifications. The main goal of the paper is to handle conflicts of graph modifications which may occur in the case of parallel dependent graph modifications. The main result is a general merge construction for graph modifications that resolves all conflicts simultaneously in the sense that for delete-insert conflicts insertion has priority over deletion.
An Extended Colored Zee-Babu Model
Creators: name: Nomura, Takaaki
name: Okada, Hiroshi
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the extended colored Zee-Babu model introducing a vector-like quark and singlet scalar. The active neutrino mass matrix and muon anomalous magnetic moment are analyzed, which can be fitted to experimental data satisfying the constraints from flavor changing neutral current. Then we discuss signature of our model via vector-like quark production. In addition, the diphoton excess can be explained with the contribution from vector-like quark
description: 20 pages, 3 figures, 3 tables. arXiv admin note: text overlap with arXiv:1602.08302
Artibeus Leach 1821
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Phyllostomidae
Artibeus

description: Artibeus Leach, 1821. Trans. Linn. Soc. Lond., 13:75. REVIEWED BY: R. Barquez (RB)(S. America); J. Molinari (JML)(S. America); B. VillaRamirez (BVR)(Mexico). COMMENT: Includes Enchisthenes; see Jones and Carter, 1979:8. ISIS NUMBER: 5301405008026000000.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Chiroptera, pp. 111-215 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 151, DOI: 10.5281/zenodo.7352990
description: {"references": ["Jones, J. K., Jr., and D. C. Carter. 1979. Systematic and distributional notes. Pp. 7 - 11, in Biology of bats of the New World family Phyllostomatidae, Part III. (R. J. Baker, J. K. Jones, Jr., and D. C. Carter, eds.). Special Publications, The Museum, Texas Tech University Press, 16: 1 - 441."]}
Wavelet Analysis of Ultrasound for the Detection of Impact Damages in Composite Laminate Structures
Creators: name: Liew, Chin Kian
name: Veidt, Martin
Publisher: name: Singapore Institute of Technology
Year: 2023
Subjects: Signal processing
Composite and hybrid materials
Mechanical engineering not elsewhere classified

description: Low velocity impact damages (LVIDs) on composite structures can cause critical failure modes like matrix cracking, delamination and fibre breakage. These damages can be difficult to detect if there are no visible surface damage from the impact. Guided wave ultrasonics through active structural health monitoring can sensitively track variations in material stiffness even from low energy transfers due to low velocity impacts. However, the guided wave response may not be clearly interpreted as a significant stiffness change in either the time domain or the frequency space due to dispersion and mode conversion. A wavelet analysis scheme is proposed where the guided waves time signal is decomposed into constituent pseudo frequency scale components to evaluate the zeroth-order moment (ZOM). This is shown to be a promising approach to increase the probability of detection (PoD) of LVIDs located on carbon-fibre reinforced laminate bars interrogated with flexural waves.