cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Assessment of waterfront office redevelopment plan on optimal building energy demand and rooftop photovoltaics for urban decarbonization
Creators: name: Choi, Younghun
name: Kobashi, Takuro
name: Yamagata, Yoshiki
name: Murayama, Akito
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Economics (econ.GN)
subject: FOS: Economics and business

description: Designing waterfront redevelopment generally focuses on attractiveness, leisure, and beauty, resulting in various types of building and block shapes with limited considerations on environmental aspects. However, increasing climate change impacts necessitate these buildings to be sustainable, resilient, and zero CO2 emissions. By producing five scenarios (plus existing buildings) with constant floor areas, we investigated how building and district form with building integrated photovoltaics (BIPV) affect energy consumption and production, self-sufficiency, CO2 emission, and energy costs in the context of waterfront redevelopment in Tokyo. From estimated hourly electricity demands of the buildings, techno-economic analyses are conducted for rooftop PV systems for 2018 and 2030 with declining costs of rooftop PV systems. We found that environmental building designs with rooftop PV system are increasingly economical in Tokyo with CO2 emission reduction of 2-9% that depends on rooftop sizes. Payback periods drop from 14 years in 2018 to 6 years in 2030. Toward net-zero CO2 emissions by 2050, immediate actions are necessary to install rooftop PVs on existing and new buildings with energy efficiency improvements by construction industry and building owners. To facilitate such actions, national and local governments need to adopt appropriate policies.
description: 29 pages
Ion acceleration to MeV by the ExB wave mechanism in collisionless shocks
Creators: name: Stasiewicz, Krzysztof
name: Eliasson, Bengt
Publisher: name: arXiv
Year: 2021
Subjects: subject: Space Physics (physics.space-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: It is shown that ions can be accelerated to MeV energy range in the direction perpendicular to the magnetic field by the ExB mechanism of electrostatic waves. The acceleration occurs in discrete steps of duration being a small fraction the gyroperiod and can explain observations of ion energization to 10 keV at quasi-perpendicular shocks and to 100-1000 keV at quasi-parallel shocks. A general expression is provided for the maximum energy of ions accelerated in shocks of arbitrary configuration. The waves involved in the acceleration are related to three cross-field current-driven instabilities: the lower hybrid drift (LHD) instability induced by the density gradients in shocks and shocklets, followed by the modified two-stream (MTS) and electron cyclotron drift (ECD) instabilities, induced by the ExB drift of electrons in the strong LHD wave electric field. The ExB wave mechanism accelerates heavy ions to energies proportional to the atomic mass number, which is consistent with satellite observations upstream of the bow shock and also with observations of post-shocks in supernovae remnants.
description: 12 pages, 6 figures, submitted to the Astrophysical Journal
Hamiltonian Principle in Binary Mixtures of Euler Fluids with Applications to the Second Sound Phenomena
Creators: name: Gouin, Henri
name: Ruggeri, Tommaso
Publisher: name: arXiv
Year: 2008
Subjects: subject: Classical Physics (physics.class-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In the present paper we compare the theory of mixtures based on Rational Thermomechanics with the one obtained by Hamilton principle. We prove that the two theories coincide in the adiabatic case when the action is constructed with the intrinsic Lagrangian. In the complete thermodynamical case we show that we have also coincidence in the case of low temperature when the second sound phenomena arises for superfluid Helium and crystals.
description: 16 pages
Calanthe tsiana Y. Q. Chen, J. W. Zhai & S. R. Lan 2020, sp. nov.
Creators: name: Chen, Yan-Qiong
name: Zhu, Ya-Ting
name: Zhong, Hui
name: Li, Ze-Xin
name: Liu, Zhong-Jian
name: Zhai, Jun-Wen
name: Lan, Si-Ren
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Asparagales
Orchidaceae
Calanthe
Calanthe tsiana

description: Calanthe tsiana Y.Q.Chen, J.W.Zhai & S.R.Lan, sp. nov. (Figs. 2, 3) (吉氏ởk兰)
Type:— CHINA. Yunan (云#): Malipo (A 栗Dz), under forest, 23°10′N, 104°49′E, c. 1560 m, 15 February 2019, Chen 0628 (holotype FJFC). This new species is similar to Calanthe arisanensis, but differs in having subspatulate petals, a lip with a yellowish area at the base of the midlobe and falcate-obovate lateral lobes with one ridge in the disk.
Terrestrial herbs, 35.0–38.0 cm tall. Pseudobulbs ovate or conical, 1.3–1.6 cm in diameter. Leaves 2, oblong to elliptic, incompletely spreading and convolute at anthesis, base contracted into a petiole-like stalk, 30.0–46.0 cm long, apex acuminate. Scape arising from leaf axil, erect, 22.0 cm, pubescent; raceme 8.0–10.0 cm long, laxly ca. 4–11-flowered; flower bracts oblong-lanceolate, white, 0.8–1.0 cm long. Flowers 2.0– 2.5 cm in diameter, white, pedicel and ovary 1.8– 2.0 cm long. Sepals subequal, ovate to oblong-ovate, 1.3–1.6 × 0.5–0.6 cm, dorsal sepal concave, slightly cymbiform, petals subspatulate, 1.2–1.4 × 0.3–0.4 cm, lip adnate to column, 1.0–1.3 × 1.0– 1.3 cm, deeply trilobed, lateral lobes falcate-obovate, oblique, 4.5–4.8 × 5.4–5.6 mm, apex rounded, midlobe obovate, 5.6–3.8 × 4.1–4.3 mm, apex slightly lobed with a mucro in the sinus, disk with 1 ridge, spur cylindrical, 18–22 mm in diameter, outside puberulent, apex slightly bilobed. Column white, 0.4–0.5 cm long, anther cap beaked, pollinia clavate with caudicles.
Phenology:— Flowering February.
Ecology and related species:— An endemic species, known only from Yunnan.
Etymology:— Honoring Zhan-huo Tsi, who devoted his life to orchidology.
description: Published as part of Chen, Yan-Qiong, Zhu, Ya-Ting, Zhong, Hui, Li, Ze-Xin, Liu, Zhong-Jian, Zhai, Jun-Wen & Lan, Si-Ren, 2020, Calanthe tsiana, a new orchid species from China (Epidendroideae: Collabieae): evidence from morphological and molecular analyses, pp. 67-72 in Phytotaxa 428 (1) on pages 70-71, DOI: 10.11646/phytotaxa.428.1.7, http://zenodo.org/record/13876025
Additional file 5 of Dysregulation of alternative splicing is associated with the pathogenesis of ulcerative colitis
Creators: name: Li, Daowei
name: Tan, Yue
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 5: Table S4. Raw counts of 4 significantly dysregulated splicing factors expression data from the public dataset and the validation experiment RNA-seq (UC versus Control); FC = Foldchange. The splicing events on mRNA are mainly regulated by splicing factors. We collected 404 splicing factors from (PMID: 29617667).
Distribution of volumes and coordination number in jammed matter: mesoscopic ensemble
Creators: name: Wang, Ping
name: Song, Chaoming
name: Jin, Yuliang
name: Wang, Kun
name: Makse, Hernan A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We investigate the distribution of the volume and coordination number associated to each particle in a jammed packing of monodisperse hard sphere using the mesoscopic ensemble developed in Nature 453, 606 (2008). Theory predicts an exponential distribution of the orientational volumes for random close packings and random loose packings. A comparison with computer generated packings reveals deviations from the theoretical prediction in the volume distribution, which can be better modeled by a compressed exponential function. On the other hand, the average of the volumes is well reproduced by the theory leading to good predictions of the limiting densities of RCP and RLP. We discuss a more exact theory to capture the volume distribution in its entire range. The available data suggests a plausible order/disorder transition defining random close packings. Finally, we consider an extended ensemble to calculate the coordination number distribution which is shown to be of an exponential and inverse exponential form for coordinations larger and smaller than the average, respectively, in reasonable agreement with the simulated data.
description: 20 pages, 6 figures, accepted by JSTAT
Experimental demonstration of the short bunch extraction by bunch rotation in a high-intensity rapid cycling proton synchrotron
Creators: name: Zhang, Linhao
name: Chen, Yukai
name: Tang, Jingyu
name: Li, Xiao
name: Liu, Yang
name: Huang, Liangsheng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: Short bunch proton beams are of great significance for the applications of white neutron beams and muon beams. The accelerator complex of China Spallation Neutron Source (CSNS) was designed to support the applications mainly based on neutron scattering techniques where the proton pulse length is not very sensitive. Some theoretical and experimental studies have been performed to see if one can extract a short-bunch proton beam by bunch rotation from the rapid cycling synchrotron (RCS) at CSNS. The experimental results at RCS have evidently displayed the bunch lengthening and rotation process, which demonstrates the effectiveness of this method even with a very short available time for the RF gymnastic processes and a high-intensity beam. With a beam power of 50 kW and normal longitudinal emittance at the injection, the proton beam with a bunch length of about 53% with respect to the one in the normal operation mode was obtained and transported to the spallation target. With a reduced longitudinal emittance at injection and the beam power of 30 kW, the shortest extraction bunch length obtained is about 26% of the one in the normal operation mode. Different machine settings have also been tested to show the impact of the desynchronization between the RF and magnetic fields, the influence of the non-adiabatic risetime and the adiabatic decay time of the RF voltage on the extraction bunch length. The experimental results are well consistent with the theoretical and simulated ones. It is interesting to observe that space charge has a beneficial effect on the bunch lengthening which will result in a shorter bunch at the extraction with the later bunch rotation. The controlled desynchronization method between the RF and magnetic fields in an RCS was also proven successful.
description: 19 pages, 14 figures
Normes invariantes et existence de filtrations admissibles
Creators: name: Hu, Yongquan
Publisher: name: arXiv
Year: 2007
Subjects: subject: Number Theory (math.NT)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 17B10; 22E50

description: Let L be a finite extension of Q_p and d a positive integer. A conjecture, due to C. Breuil and P. Schneider, says that the existence of invariant norms on certain locally algebraic representations of GL_{d+1}(L) should be equivalent to the existence of certain (d+1)-dimensional de Rham representations of Gal(\bar{L}/L). We prove the easy direction of this conjecture: the existence of invariant norms implies the existence of admissible filtrations, by generalizing an idea of M.Emerton.
description: 30 pages
Experimental estimation of the quantum Fisher information from randomized measurements
Creators: name: Yu, Min
name: Li, Dongxiao
name: Wang, Jingcheng
name: Chu, Yaoming
name: Yang, Pengcheng
name: Gong, Musang
name: Goldman, Nathan
name: Cai, Jianming
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The quantum Fisher information (QFI) represents a fundamental concept in quantum physics. On the one hand, it quantifies the metrological potential of quantum states in quantum-parameter-estimation measurements. On the other hand, it is intrinsically related to the quantum geometry and multipartite entanglement of many-body systems. Here, we explore how the QFI can be estimated via randomized measurements, an approach which has the advantage of being applicable to both pure and mixed quantum states. In the latter case, our method gives access to the sub-quantum Fisher information, which sets a lower bound on the QFI. We experimentally validate this approach using two platforms: a nitrogen-vacancy center spin in diamond and a 4-qubit state provided by a superconducting quantum computer. We further perform a numerical study on a many-body spin system to illustrate the advantage of our randomized-measurement approach in estimating multipartite entanglement, as compared to quantum state tomography. Our results highlight the general applicability of our method to general quantum platforms, including solid-state spin systems, superconducting quantum computers and trapped ions, hence providing a versatile tool to explore the essential role of the QFI in quantum physics.
description: 11 pages, 6 figures, comments are welcome
Blockchain Transaction Processing
Creators: name: Gupta, Suyash
name: Sadoghi, Mohammad
Publisher: name: arXiv
Year: 2021
Subjects: subject: Databases (cs.DB)
subject: Cryptography and Security (cs.CR)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: A blockchain is an append-only linked-list of blocks, which is maintained at each participating node. Each block records a set of transactions and their associated metadata. Blockchain transactions act on the identical ledger data stored at each node. Blockchain was first perceived by Satoshi Nakamoto as a peer-to-peer digital-commodity (also known as crypto-currency) exchange system. Blockchains received traction due to their inherent property of immutability-once a block is accepted, it cannot be reverted.
Electrically Enhanced Exchange Bias via Solid State Magneto-Ionics
Creators: name: Murray, Peyton D.
name: Jensen, Christopher J.
name: Quintana, Alberto
name: Zhang, Junwei
name: Zhang, Xixiang
name: Grutter, Alexander J.
name: Kirby, Brian J.
name: Liu, Kai
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Electrically induced ionic motion offers a new way to realize voltage-controlled magnetism, opening the door to a new generation of logic, sensor, and data storage technologies. Here, we demonstrate an effective approach to magneto-ionically and electrically tune exchange bias in Gd/Ni$_{1-x}$Co$_{x}$O thin films (x=0.50, 0.67), where neither of the layers alone is ferromagnetic at room temperature. The Gd capping layer deposited onto antiferromagnetic Ni$_{1-x}$Co$_{x}$O initiates a solid-state redox reaction that reduces an interfacial region of the oxide to ferromagnetic NiCo. Exchange bias is established after field cooling, which can be enhanced by up to 35% after a voltage conditioning and subsequently reset with a second field cooling. These effects are caused by the presence of an interfacial ferromagnetic NiCo layer, which further alloys with the Gd layer upon field cooling and voltage application, as confirmed by electron microscopy and polarized neutron reflectometry studies. These results highlight the viability of the solid-state magneto-ionic approach to achieve electric control of exchange bias, with potentials for energy-efficient magneto-ionic devices.
description: 25 pages, 5 figures; 8 pages of Supporting Information with 5 figures
$α$ particle preformation in heavy nuclei and penetration probability
Creators: name: Zhang, H. F.
name: Royer, G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The $α$ particle preformation in the even-even nuclei from $^{108}$Te to $^{294}$118 and the penetration probability have been studied. The isotopes from Pb to U have been firstly investigated since the experimental data allow us to extract the microscopic features for each element. The assault frequency has been estimated using classical methods and the penetration probability from tunneling through the Generalized Liquid Drop Model (GLDM) potential barrier. The preformation factor has been extracted from experimental $α$ decay energies and half-lives. The shell closure effects play the key role in the $α$ preformation. The more the nucleon number is close to the magic numbers, the more the formation of $α$ cluster is difficult inside the mother nucleus. The penetration probabilities reflect that 126 is a neutron magic number. The penetration probability range is very large compared to that of the preformation factor. The penetration probability determines mainly the $α$ decay half-life while the preformation factor allows us to obtain information on the nuclear structure. The study has been extended to the newly observed heaviest nuclei.
Machine-guided design of cell-type-targeting cis-regulatory elements
Creators: name: Gosai, Sager
name: Castro, Rodrigo
name: Fuentes, Natalia
name: Butts, John
name: Mouri, Kousuke
name: Alasoadura, Michael
name: Kales, Susan
name: Nguyen, Thanh Thanh
name: Noche, Ramil
name: Rao, Arya
name: Joy, Mary Teena
name: Sabeti, Pardis
name: Reilly, Steven
name: Tewhey, Ryan
Publisher: name: Nature
Year: 2023

description: Supplemental data and resources for the manuscript titled "Machine-guided design of cell-type-targeting cis-regulatory elements"
The frequency separations of stellar p-modes
Creators: name: Yang, W. M.
name: Bi, S. L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Aims. The purpose of this work is to investigate a new frequency separation of stellar p-modes and its characteristics. Methods. Frequency separations are deduced from the asymptotic formula of stellar p-modes. Then, using the theoretical adiabatic frequencies of stellar model, we compute the frequency separations. Results. A new separation $σ_{l-1 l+1}(n)$, which is similar to the scaled small separation $d_{l l+2}(n)/(2l+3)$, is obtained from the asymptotic formula of stellar p-modes. The separations $σ_{l-1 l+1}(n)$ and $d_{l l+2}(n)/(2l+3)$ have the same order. And like the small separation, $σ_{l-1 l+1}(n)$ is mainly sensitive to the conditions in the stellar core. However, with the decrease of the central hydrogen abundance of stars, the $σ_{02}$ and $σ_{13}$ more and more deviate from the scaled small separation. This characteristic could be used to extract the information on the central hydrogen abundance of stars.
description: Accepted for Publication in A&A, 8 pages, 5 figures
Strength model and design methods for bending and axial load interaction in timber members
Creators: name: Buchanan, Andrew Hamilton
Publisher: name: University of British Columbia
Year: 2010

description: This thesis describes a model for predicting the strength of timber members in bending, and in combined bending and axial loading, on the basis of axial tension and compression behaviour of similar members. Both instability and material strength failures are included. The model is based on a stress-strain relationship which incorporates ductile non-linear behaviour in compression, and linear elastic behaviour associated with brittle fracture in tension. The model includes the effects of variability in timber strength, both within a member and between members. Size effects which predict decreasing strength with increasing member size are quantified using separate parameters for member length and member depth. An extensive experimental program on a large number of timber members in structural sizes has been used to calibrate and verify the model. Test procedures and results are described for members of different lengths tested to failure in bending and in axial loading. The axial testing included both tension and compression loading using several end eccentricities. Several alternative design methods based on the strength model are investigated and compared with existing methods. Recommendations are made for design methods for timber members subjected to combined bending and axial loading.
Anomalous behavior of plasma response functions at strong coupling
Creators: name: Magyar, Péter
name: Kalman, Gabor J.
name: Hartmann, Peter
name: Donkó, Zoltán
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Using data from equilibrium Molecular Dynamics computer simulations we have built up a catalogue of response functions for the Coulomb one-component plasma (OCP) over a wide range of $Γ$ coupling values, including the strongly coupled $Γ> 1$ liquid regime. We focus on the domain of negative compressibility ($Γ>3$), where causality and the concomitant Kramers-Kronig relations are violated. We give a description of the details of the violation, both in the frequency and time domains. We show that the viscoelastic pole of the density response function morphs into an imaginary pole in the upper $ω$ half-plane that is responsible for the anomalous behavior of the response in this coupling range. By examining the plasmon dispersion relation through the dielectric response function, rather than via the peaks of the dynamical structure function, we obtain a more reliable representation for the dispersion. We demonstrate that there is an intimate link between the formation of the roton minimum in the dispersion and the negative compressibility of the system. The feasibility of the extension of our analysis to systems with a short range interaction is explored.
description: 17 pages, 15 figures
Additional file 1 of Patient-reported outcome (PRO) results from the AGITG DOCTOR trial: a randomised phase 2 trial of tailored neoadjuvant therapy for resectable oesophageal adenocarcinoma
Creators: name: Mercieca-Bebber, R.
name: Barnes, E. H.
name: Wilson, K.
name: Samoon, Z.
name: Walpole, E.
name: Mai, T.
name: Ackland, S.
name: Burge, M.
name: Dickie, G.
name: Watson, D.
name: Leung, J.
name: Wang, T.
name: Bohmer, R.
name: Cameron, D.
name: Simes, J.
name: Gebski, V.
name: Smithers, M.
name: Thomas, J.
name: Zalcberg, J.
name: Barbour, A. P.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Pharmacology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1.
Bond of deformed bars in steel fiber-reinforced concrete under cyclic loading
Creators: name: Panda, Amulya Kumar
Publisher: name: University of British Columbia
Year: 2010

description: The influence of reversed cyclic loading on the anchorage bond behaviour of deformed bars in plain and steel fiber reinforced concrete was studied. The intent was to examine the feasibility of using steel fibrous concrete to improve anchorage bond performance in beam-column joints in moment resisting frame structures for seismic resistance. Twenty-four specimens were tested, in which a single bar was simultaneously pulled at one end and pushed in at the other; the load was reversed cyclically to simulate the loading of a bar passing through an interior beam-column joint under seismic loading. The important variables were the size of steel fibers and the pattern of loading. The results indicate that the loading history has a significant influence on the bond deterioration. A significant reduction in stiffness and resistance capacity is observed for specimens under reversed cyclic loading as compared to those under monotonic loading, and this was primarily due to a deterioration in the stress transfer mechanism. The addition of steel fibers improved the anchorage bond capacity by 20 to 26 percent and retarded the rate of bond deterioration under reversed cyclic loading. The steel fibers were also found to make a definite contribution to crack control and thus better serviceability. From a study of the geometric characteristics of the applied stress displacement curves, a trilinear model was proposed to predict the response of a specimen under reversed cyclic loading of incrementally increasing nature. Finally, an elastic axisymmetric finite element analysis was carried out as a supplement to the information obtained from the experimental study. It was found useful in formulating a theory on the bond deterioration mechanism.
Dynamic imaging and characterization of volatile aerosols in e-cigarette emissions using deep learning-based holographic microscopy
Creators: name: Luo, Yi
name: Wu, Yichen
name: Li, Liqiao
name: Guo, Yuening
name: Cetintas, Ege
name: Zhu, Yifang
name: Ozcan, Aydogan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Applied Physics (physics.app-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Various volatile aerosols have been associated with adverse health effects; however, characterization of these aerosols is challenging due to their dynamic nature. Here we present a method that directly measures the volatility of particulate matter (PM) using computational microscopy and deep learning. This method was applied to aerosols generated by electronic cigarettes (e-cigs), which vaporize a liquid mixture (e-liquid) that mainly consists of propylene glycol (PG), vegetable glycerin (VG), nicotine, and flavoring compounds. E-cig generated aerosols were recorded by a field-portable computational microscope, using an impaction-based air sampler. A lensless digital holographic microscope inside this mobile device continuously records the inline holograms of the collected particles. A deep learning-based algorithm is used to automatically reconstruct the microscopic images of e-cig generated particles from their holograms, and rapidly quantify their volatility. To evaluate the effects of e-liquid composition on aerosol dynamics, we measured the volatility of the particles generated by flavorless, nicotine-free e-liquids with various PG/VG volumetric ratios, revealing a negative correlation between the particles' volatility and the volumetric ratio of VG in the e-liquid. For a given PG/VG composition, the addition of nicotine dominated the evaporation dynamics of the e-cig aerosol and the aforementioned negative correlation was no longer observed. We also revealed that flavoring additives in e-liquids significantly decrease the volatility of e-cig aerosol. The presented holographic volatility measurement technique and the associated mobile device might provide new insights on the volatility of e-cig generated particles and can be applied to characterize various volatile PM.
description: 23 Pages, 4 Figures
Second order rectifiability of integral varifolds of locally bounded first variation
Creators: name: Menne, Ulrich
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 45Q15 (Primary) 35J60 (Secondary)

description: In this work it is shown that every integral varifold in an open subset of Euclidian space of locally bounded first variation can be covered by a countable collection of submanifolds of class C^2. Moreover, the mean curvature of each member of the collection agrees with the mean curvature of the varifold almost everywhere with respect to the varifold.
description: v1: 34 pages, no figures; v2: revised presentation, material of 0909.3253 and 0808.3665 reorganised, parts moved to 0909.3253v2, parts from 0909.3253v1 included, this version now depends on 0909.3253v2, comparison to Hutchinson's second fundamental form added, 40 pages, no figures; v3: introduction and 4.5 revised, 3.8 and one reference added, one reference updated, 40 pages, no figures
The origins of low-luminosity supernovae: the case of SN 2016bkv
Creators: name: Deckers, Maxime
name: Groh, Jose H.
name: Boian, Ioana
name: Farrell, Eoin J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We investigate the low-luminosity supernova SN 2016bkv and its peculiar early-time interaction. For that, we compute radiative transfer models using the CMFGEN code. Because SN 2016bkv shows signs of interaction with material expelled by its progenitor, it offers a great opportunity to constrain the uncertain evolutionary channels leading to low-luminosity supernovae. Our models indicate that the progenitor had a mass-loss rate of (6.0 +- 2.0) x 1e-4 Msun/yr (assuming a velocity of 150 km/s). The surface abundances of the progenitor are consistent with solar contents of He and CNO. If SN 2016bkv's progenitor evolved as a single star, it was an odd red supergiant that did not undergo the expected dredge up for some reason. We propose that the progenitor more likely evolved through binary interaction. One possibility is that the primary star accreted unprocessed material from a companion and avoided further rotational and convective mixing until the SN explosion. Another possibility is a merger with a lower mass star, with the primary remaining with low N abundance until core collapse. Given the available merger models, we can only put a loose constraint on the pre-explosion mass around 10-20 Msun, with lower values being favored based on previous observational constraints from the nebular phase.
description: 10 pages, 8 figures, MNRAS accepted
VLBI monitoring of the structure of the ICRF sources - The Bordeaux VLBI Image Database
Creators: name: Collioud, Arnaud
name: Charlot, Patrick
Publisher: name: Zenodo
Year: 2024
Subjects: VLBI
Imaging
AGN
BVID
Astrometry
Celestial Reference Frame
ICRF
Gaia
IVS

description: The extragalactic radio sources that make up the International Celestial Reference Frame (ICRF) can exhibit extended and time-variable brightness distributions (or structures) on VLBI scales, setting limits on the accuracy of the astrometric source positions determined from VLBI. For this reason, regular VLBI observations are organized to image and monitor these structures. The primary observations used for this purpose are the so-called ``Research \& Development with the VLBA" (RDV) sessions, initiated almost three decades ago. Systematic imaging of the sources observed in these sessions is carried out by the Bordeaux group with the goal of tracking the structural evolution of the ICRF sources on the long-term. The VLBI images produced along with metrics that characterize the source structure are made available to the scientific community via the Bordeaux VLBI Image Database (BVID). Occasionally, other sessions, either at higher radio frequencies, i.e. K band (24 GHz) and Q band (43 GHz), or from other observing programs, are also used for imaging, At present, the database includes more than 8000 VLBI images for more than 1500 sources, with up to 50+ epochs per source. The available data may be used for astrometric and astrophysical research, like selecting the defining sources for the ICRF, modeling source structure in astrometric and geodetic VLBI, and studying the nature and evolution of the sources. The BVID is accessible at the following url: https://bvid.astrophy.u-bordeaux.fr
The nature of the fluorescent iron line in V 1486 Ori
Creators: name: Czesla, S.
name: Schmitt, J. H. H. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The fluorescent 6.4 keV iron line provides information on cool material in the vicinity of hard X-ray sources as well as on the characteristics of the X-ray sources themselves. First discovered in the X-ray spectra of the flaring Sun, X-ray binaries and active galactic nuclei (AGN), the fluorescent line was also observed in a number of stellar X-ray sources. The young stellar object (YSO) V1486 Ori was observed in the framework of the Chandra Ultra Deep Project (COUP) as the source COUP 331. We investigate its spectrum, with emphasis on the strength and time variability of the fluorescent iron K-alpha line, derive and analyze the light curve of COUP 331 and proceed with a time-resolved spectral analysis of the observation. The light curve of V 1486 Ori shows two major flares, the first one lasting for (approx) 20 ks with a peak X-ray luminosity of 2.6*10^{32} erg/s (dereddened in the 1-10 keV band) and the second one -- only partially observed -- for >60 ks with an average X-ray luminosity of 2.4*10^{31} erg/s (dereddened). The spectrum of the first flare is very well described by an absorbed thermal model at high temperature, with a pronounced 6.7 keV iron line complex, but without any fluorescent K-alpha line. The X-ray spectrum of the second flare is characterized by even higher temperatures (>= 10 keV) without any detectable 6.7 keV Fe XXV feature, but with a very strong fluorescent iron K-alpha line appearing predominantly in the 20 ks rise phase of the flare. Preliminary model calculations indicate that photoionization is unlikely to account for the entire fluorescent emission during the rise phase.
description: 4 pages, letter, accepted for publication in A&A
General String Cosmologies at Order $α'{}^{\,3}$
Creators: name: Codina, Tomas
name: Hohm, Olaf
name: Marques, Diego
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute the cosmological reduction of general string theories, including bosonic, heterotic and type II string theory to order $α'^{3}$, i.e., with up to eight derivatives. To this end we refine recently introduced methods that allow one to bring the reduced theory in one dimension to a canonical form with only first-order time derivatives. The resulting theories are compatible with a continuous $O(d,d,\mathbb{R})$ invariance, which in turn fixes the B-field couplings.
description: v2: 20 pages, important corrections that affect the coefficient $c_{4,1}$ for bosonic and heterotic string theory; all other results unchanged
Origin of Hysteresis in a Proximity Josephson Junction
Creators: name: Courtois, Hervé
name: Meschke, M.
name: Peltonen, J. T.
name: Pekola, J. P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We investigate hysteresis in the transport properties of Superconductor - Normal metal - Superconductor (S-N-S) junctions at low temperatures by measuring directly the electron temperature in the normal metal. Our results demonstrate unambiguously that the hysteresis results from an increase of the normal metal electron temperature once the junction switches to the resistive state. In our geometry, the electron temperature increase is governed by the thermal resistance of the superconducting electrodes of the junction.
The seismic cone penetrometer
Creators: name: Rice, Anthony Henry
Publisher: name: University of British Columbia
Year: 2010

description: A static cone penetrometer was modified to incorporate a small diameter triaxial geophone package. This instrument was evaluated by obtaining downhole shear wave velocity profiles at selected research sites on the Fraser River Delta near Vancouver B.C. for the purpose of determining in-situ dynamic shear moduli. A second geophone package was added to the instrument to assess the accuracy of shear wave velocity measurements, and to determine a practical instrument configuration for routine field use. Shear wave characteristics, downhole velocities, signal repeatability and signal amplitude were studied, to evaluate the energy source and downhole receiver response, and to develop a rational testing procedure. Plank type signal sources were used exclusively and were found to be both satisfactory and convenient. Geophone response and receiver to soil coupling were excellent and identifiable shear waves were obtained to depths of 40 metres. Down rod signal transmission, signal repeatability and problems with high background noise levels were overcome by selective testing procedures and interpretation techniques. The results of this study indicate that a static cone penetrometer containing just a single geophone can provide a rapid and accurate method for carrying out a downhole shear wave velocity survey. The cone testing procedure allows superior shear wave records since it minimizes soil disturbance, provides excellent soil to receiver coupling and controlled receiver orientation. Combined with data from the cone bearing, friction and pore pressure measurement elements, the interpretation of in-situ static and dynamic soil properties, using a single test hole, is greatly enhanced.
Contradiction between strong lensing statistics and a feedback solution to the cusp/core problem
Creators: name: Chen, Da-Ming
name: McGaugh, Stacy
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Standard cosmology has many successes on large scales, but faces some fundamental difficulties on small, galactic scales. One such difficulty is the cusp/core problem. High resolution observations of the rotation curves for dark matter dominated low surface brightness (LSB) galaxies imply that galactic dark matter halos have a density profile with a flat central core, whereas N-body structure formation simulations predict a divergent (cuspy) density profile at the center. It has been proposed that this problem can be resolved by stellar feedback driving turbulent gas motion that erases the initial cusp. However, strong gravitational lensing prefers a cuspy density profile for galactic halos. In this paper, we use the most recent high resolution observations of the rotation curves of LSB galaxies to fit the core size as a function of halo mass, and compare the resultant lensing probability to the observational results for the well defined combined sample of the Cosmic Lens All-Sky Survey (CLASS) and Jodrell Bank/Very Large Array Astrometric Survey (JVAS). The lensing probabilities based on such density profiles are too low to match the observed lensing in CLASS/JVAS. High baryon densities in the galaxies that dominate the lensing statistics can reconcile this discrepancy, but only if they steepen the mass profile rather than making it more shallow. This places contradictory demands upon the effects of baryons on the central mass profiles of galaxies.
description: 8 pages, 3 figures. Largely improved compared with the version 1 to reflect the referees' reports, conclusions unchanged. Published in Research in Astronomy and Astrophysics (RAA)
Additional file 1 of Genome annotation with long RNA reads reveals new patterns of gene expression and improves single-cell analyses in an ant brain
Creators: name: Shields, Emily J.
name: Sorida, Masato
name: Sheng, Lihong
name: Sieriebriennikov, Bogdan
name: Ding, Long
name: Bonasio, Roberto
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Figure S1. Statistics and methods used to create and evaluate the new Harpegnathos annotation. (A) Length distribution of all raw Iso-Seq subreads. (B) Transcripts per million (TPM) from short-read RNA-seq of genes with and without Iso-Seq coverage in brain and fat body/ovary. (C) Pipeline for manual annotation following combination of Iso-Seq-based and RNA-seq-based annotations. (D) Relationship between gene models in HSAL50 and HSAL51. (E) Schematic of the dT-seq approach. RNA was chemically fragmented. PolyA+ molecules were purified and split into two reverse transcription reactions, one primed with an anchored oligo-dT primer and one with random hexamers. The resulting cDNA was assembled into libraries and sequenced. The scheme at the bottom shows that the expected read distribution in dT- and hexamer-primed reactions differs for true polyA tails and internal A-stretches. This information was used to discard peaks that did not correspond to bona fide TTSs (red square). (F) Expected (top) and observed (bottom) signal at dT peaks found in the CDS (let) or 3′ UTR (right) from oligo-dT primed libraries (”dT”, top) and random hexamer primed libraries (”hexamers”, bottom).
Additional file 3 of Patient-reported outcome (PRO) results from the AGITG DOCTOR trial: a randomised phase 2 trial of tailored neoadjuvant therapy for resectable oesophageal adenocarcinoma
Creators: name: Mercieca-Bebber, R.
name: Barnes, E. H.
name: Wilson, K.
name: Samoon, Z.
name: Walpole, E.
name: Mai, T.
name: Ackland, S.
name: Burge, M.
name: Dickie, G.
name: Watson, D.
name: Leung, J.
name: Wang, T.
name: Bohmer, R.
name: Cameron, D.
name: Simes, J.
name: Gebski, V.
name: Smithers, M.
name: Thomas, J.
name: Zalcberg, J.
name: Barbour, A. P.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Pharmacology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 3.
Coronal microjets in quiet-Sun regions observed with the Extreme Ultraviolet Imager onboard Solar Orbiter
Creators: name: Hou, Zhenyong
name: Tian, Hui
name: Berghmans, David
name: Chen, Hechao
name: Teriaca, Luca
name: Schuhle, Udo
name: Gao, Yuhang
name: Chen, Yajie
name: He, Jiansen
name: Wang, Linghua
name: Bai, Xianyong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report the smallest coronal jets ever observed in the quiet Sun with recent high resolution observations from the High Resolution Telescopes (HRI-EUV and HRI-Lyα) of the Extreme Ultraviolet Imager (EUI) onboard Solar Orbiter. In the HRI-EUV (174 Å) images, these microjets usually appear as nearly collimated structures with brightenings at their footpoints. Their average lifetime, projected speed, width, and maximum length are 4.6 min, 62 km s^(-1), 1.0 Mm, and 7.7 Mm, respectively. Inverted-Y shaped structures and moving blobs can be identified in some events. A subset of these events also reveal signatures in the HRI-Lyα (H I Lyα at 1216 Å) images and the extreme ultraviolet images taken by the Atmospheric Imaging Assembly onboard the Solar Dynamics Observatory. Our differential emission measure analysis suggests a multi-thermal nature and an average density of ~1.4x10^9 cm^(-3) for these microjets. Their thermal and kinetic energies were estimated to be ~3.9x10^24 erg and ~2.9x10^23 erg, respectively, which are of the same order of the released energy predicted by the nanoflare theory. Most events appear to be located at the edges of network lanes and magnetic flux concentrations, suggesting that these coronal microjets are likely generated by magnetic reconnection between small-scale magnetic loops and the adjacent network field.
description: Accepted by ApJL, 19 pages, 6 figures, and 2 tables
Multipolar scattering analysis of hybrid metal-dielectric nanostructures
Creators: name: Ray, Debdatta
name: Kiselev, Andrei
name: Martin, Olivier J. F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We perform a systematic study showing the evolution of the multipoles along with the spectra for a hybrid metal-dielectric nanoantenna, a Si cylinder and an Ag disk stacked one on top of another, as its dimensions are varied one by one. We broaden our analysis to demonstrate the "magnetic light" at energies above 1 eV by varying the height of the Ag on the Si cylinder and below 1 eV by introducing insulating spacing between them. We also explore the appearance of the anapole state along with some exceptionally narrow spectral features by varying the radius of the Ag disk.
description: 13 pages, 5 figures
Zercon plumatopilus Athias-Henriot 1961
Creators: name: Urhan, Raşit
name: Karaca, Mehmet
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Mesostigmata
Blattisociidae
Zercon
Zercon plumatopilus

description: Zercon plumatopilus Athias-Henriot, 1961 (Figure 3)
Materials examined: 14 females, 9 males and 3 DN: soil and litter samples under kermes oak (Q. coccifera), Turkish oak (Q. cerris) and sage-leaved rock-rose (C. salviifolius), 37°42.174' N, 27°17.517' E, 543 m a.s.l., vicinity of Kurşunlu monastery, 9 November 2019. 2 females and 3 males: soil and litter samples under Turkish oak (Q. cerris) and Aleppo oak (Q. infectoria), 37°42.213' N, 27°17.990' E, 385 m a.s.l., vicinity of Davutlar neighborhood, 9 November 2019.
Short description: On podonotum, setae j1–2 and marginal setae (s2–3, s6, r2 and r4–5) finely barbed, the remaining setae short, smooth and needle-like. On opisthonotum, setae J1 and Z1 smooth and needle-like. Setae J2, Z2, S2 and marginal setae (S1 and R1–6) finely barbed. Setae J3–5, Z3– 5 and S3–5 elongated, finely barbed with hyaline endings. Although setae Z4 and S4 extend to the edge of the opisthonotum, setae Z5 and S5 extend beyond the opisthonotum. Pores gdS2 located between setae Z2 and S3, gdZ3 located between setae J5 and Z4, closer to Z4. Dorsal cavities large, distinct and strongly developed. Anterior margin of ventrianal shield with 1 pair of setae (JV1), glands gv2 present. Posterolateral tips of peritrematal shield reach the level of seta S1 (UJvári, 2009).
Deutonymph (Fig. 3)
Length × width of idiosoma: 286–377 × 185–233 (n=3).
On podonotum, setae j1, s3 and s6 finely barbed, the remaining setae short, smooth and needle-like. On opisthonotum, setae J1–5, Z1–2, S2 and marginal setae (S1 and R1–6) short, smooth and needle-like. Setae Z3–5 and S3–5 elongated, and finely barbed with hyaline endings. However, setae Z3 and S3 shorter than other setae with similar morphological features. Although seta Z4 extends to the edge of the opisthonotum (or slightly extent beyond), setae Z5 and S4–5 extend to beyond the opisthonotum demonstrably. Pores gdS2 located between setae Z3 and S3, closer to S3, gdZ3 located between setae J4 and Z4, closer to Z4. Dorsal cavities distinct and weakly developed. Anterior margin of ventrianal shield with 1 pair of setae (JV1), glands gv2 present. Posterolateral tips of peritrematal shield reach the level of seta S1. Distances between setae Z5–Z5 and Z5–JV5 74–96 and 12–20, respectively. Podonotal and opisthonotal shields distinct. Average lengths and ranges of opisthonotal setae are given in Table 2 for the deutonymph specimens.
Distribution in Türkiye: Erzurum (Duran et al., 2017), Kütahya (Urhan and Duran, 2019), Aydın (present study).
Known distribution: Italia, Slovenia, Cyprus (UJvári, 2009), and Albania (UJvári, 2010).
description: Published as part of Urhan, Raşit & Karaca, Mehmet, 2023, Contributions to the Zerconidae (Acari: Mesostigmata) fauna of Dilek Peninsula-Büyük Menderes Delta National Park, Türkiye, pp. 21-33 in Acarological Studies 5 (1) on pages 25-26, DOI: 10.47121/acarolstud.1226687, http://zenodo.org/record/8156274
Axial force between a thick coil and a cylindrical permanent magnet: optimising the geometry of an electromagnetic actuator
Creators: name: Robertson, Will
name: Cazzolato, Benjamin
name: Zander, Anthony
Publisher: name: Figshare
Year: 2019
Subjects: subject: Mechanical Engineering
subject: FOS: Mechanical engineering

description: Paper published in IEEE Transactions on Magnetics, 2012.