cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Passive Remote Sensing of Thin and Thick Components of Vegetation
Creators: name: SIMSEK, Ozlem
name: SEKER, S.Selim
Publisher: name: figshare
Year: 2023
Subjects: Electrical engineering not elsewhere classified
Software engineering not elsewhere classified

description: Electromagnetic (EM) waves can be used for constructing the EM model and analyzing the influence of various parameters. The outcome of the analysis can be useful as input to many remote sensing forecasting models. The present study is investigating the emissivity of thin and thick components of vegetation. The investigated terrain, which consists of leaves and branches is considered thin and thick bodies. The mathematical equations are constructed for, absorption cross-sections and emissivity. Then, by using this equation and already driven relations between relevant electromagnetic parameters of thin and thick are compared. Further, the dependency between the aforementioned parameters in emissivity modeling is examined. A comparison of our results with the literature has a good agreement.
Possible Sources of Elevated Arsenic in Surface and Ground Water, Amphoe Banrai, Changwat Uthai Thani, Thailand
Creators: name: Apsorn Sardsud
Publisher: name: Department of Mineral Resources of Thailand
Year: 2020
Subjects: Arsenic
Banrai
geochemical exploration
sources
risk area
water sampling

description: Thai Geoscience Journal, 1, 1, 18-27
SN 2009jf: a slow-evolving stripped-envelope core-collapse supernova★: SN 2009jf
Creators: name: Botticella, M. T.
name: Mattila, S.
name: Lacluyze, A. P.
name: Fugazza, D.
name: Hamuy, M.
name: Haislip, J. B.
name: Kotak, R.
name: Smartt, S. J.
name: Turatto, M.
name: Maza, J.
name: Ivarsen, K. M.
name: Kankare, E.
name: Fraser, M.
name: Taubenberger, S.
name: Crockett, M.
name: Magill, L.
name: Eder, I.
name: Pignata, G.
name: Mazzali, P. A.
name: Zampieri, L.
name: Cappellaro, E.
name: Benetti, S.
name: Pastorello, A.
name: Sollerman, J.
name: Harutyunyan, A.
name: Ergon, M.
name: Bufano, F.
name: Reichart, D. E.
name: Inserra, C.
name: Brimacombe, J.
name: Valenti, S.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: We present an extensive set of photometric and spectroscopic data for SN 2009jf, a nearby Type Ib supernova (SN), spanning from similar to 20 d before B-band maximum to 1 yr after maximum. We show ...
(2678) Arthur Wesley Richards
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Delay-Phase Precoding for Wideband THz Massive MIMO
Creators: name: Dai, Linglong
name: Tan, Jingbo
name: Poor, H. Vincent
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Benefiting from tens of GHz bandwidth, terahertz (THz) communication is considered to be a promising technology to provide ultra-high speed data rates for future 6G wireless systems. To compensate for the serious propagation attenuation of THz signals, massive multiple-input multiple-output (MIMO) with hybrid precoding can be utilized to generate directional beams with high array gains. However, the standard hybrid precoding architecture based on frequency-independent phase-shifters cannot cope with the beam split effect in THz massive MIMO systems, where the directional beams will split into different physical directions at different subcarrier frequencies. The beam split effect will result in a serious array gain loss across the entire bandwidth, which has not been well investigated in THz massive MIMO systems. In this paper, we first reveal and quantify the seriousness of the beam split effect in THz massive MIMO systems by analyzing the array gain loss it causes. Then, we propose a new precoding architecture called delay-phase precoding (DPP) to mitigate this effect. Specifically, the proposed DPP introduces a time delay network as a new precoding layer between radio-frequency chains and phase-shifters in the standard hybrid precoding architecture. In this way, conventional phase-controlled analog beamforming can be converted into delay-phase controlled analog beamforming. Unlike frequency-independent phase shifts, the time delay network introduced in the DPP can realize frequency-dependent phase shifts, which can be designed to generate frequency-dependent beams towards the target physical direction across the entire THz bandwidth. Due to the joint control of delay and phase, the proposed DPP can significantly relieve the array gain loss caused by the beam split effect. Furthermore, we propose a hardware structure by using true-time-delayers to realize the concept of DPP.
description: Accepted by IEEE TWC. We first reveal a fundamental problem called the beam split effect in THz massive MIMO. To solve this problem, we then propose a new precoding architecture named delay-phase precoding. Simulation codes are provided: http://oa.ee.tsinghua.edu.cn/dailinglong/publications/publications.html
Transition between the Thabsila metamorphic complex and the Lower Paleozoic formations and their sandstone provenance, Kanchanaburi, western Thailand
Creators: name: Sirot Salyapongse
Publisher: name: Department of Mineral Resources of Thailand
Year: 2020
Subjects: regional metamorphism
sandstone provenance
Cambrian
Ordovician

description: Thai Geoscience Journal, 1, 1, 28-49
The neutrino-nucleon cross section at UHE and its astrophysical implications
Creators: name: Albacete, Javier L.
name: Illana, José I.
name: Soto-Ontoso, Alba
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a quantitative study of the $νN$ cross section in the neutrino energy range $10^4
description: 17 pages; 5 figures. References and comments added
On the Bloch Theorem and Orthogonality Relations
Creators: name: Khorasani, Sina
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Bloch theorem for a periodic operator is being revisited here, and we notice extra orthogonality relationships. It is shown that solutions are bi-periodic, in the sense that eigenfunctions are periodic with respect to one argument, and pseudo-periodic with respect to the other. An additional kind of symmetry between r-space and k-space exists between the envelope and eignfunctions not apparently noticed before, which allows to define new invertible modified Wannier functions. As opposed to the Wannier functions in r-space, these modified Wannier functions are defined in the k-spaces, but satisfy similar basic properties. These could result in new algorithms and other novel applications in the computational tools of periodic structures.
Stellar population trends in S0 galaxies: Stellar population trends in S0 galaxies
Creators: name: Mcdonald, Michael
name: Chamberlain, L. C.Prochaska
name: Courteau, Stéphane
name: Rose, James A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: We present stellar population age and metallicity trends for a sample of 59 S0 galaxies based on optical Sloan Digital Sky Survey (SDSS) and near-infrared (NIR)
The Ubiquity and Dual Nature of Ultra Compact Dwarfs
Creators: name: Kannappan, Sheila J.
name: Norris, Mark A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: We present the discovery of several ultra-compact dwarfs (UCDs) located in field/group environments. Examination of these objects, plus literature UCDs, confirms the existence of two distinct formation channels for these compact stellar systems. We find that the UCDs we have discovered around the group elliptical NGC 3923 (and most UCDs in general) have properties consistent with their being the most luminous members of the host galaxy’s globular cluster (GC) system. As with GCs they are therefore likely to be the product of the most violent epochs of galaxy formation. We describe UCDs of this type as giant GCs (GGCs). In contrast, the UCD we have found associated with the isolated S0 NGC 4546 is clearly the result of the stripping of a nucleated companion galaxy. The young age (∼3.4 Gyr) of the UCD, the lack of a correspondingly young GC population, the apparently short dynamical friction decay time-scale (∼0.5 Gyr) of the UCD and the presence of a counter-rotating gas disc in the host galaxy (corotating with respect to the UCD) together suggest that this UCD is the liberated nucleus remaining after the recent stripping of a companion by NGC 4546. We infer that the presence of UCDs of either category (GGCs formed in major star-forming events, or stripped nuclei formed in minor mergers) can provide a useful probe of the assembly history of the host galaxy. We suggest a general scheme that unifies the formation of GCs, UCDs and galaxy nuclei. In this picture, ‘normal’ GCs are a composite population, composed of GCs formed
The globular cluster kinematics and galaxy dark matter content of NGC 3923
Creators: name: Bridges, Terry
name: Forbes, Duncan A.
name: Zepf, Stephen E.
name: Faifer, Favio Raul
name: Sharples, Ray M.
name: Forte, Juan C.
name: Kannappan, Sheila J.
name: Proctor, Robert
name: Beasley, Michael A.
name: Gebhardt, Karl
name: Hanes, David A.
name: Norris, Mark A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: This paper presents further results from our spectroscopic study of the globular cluster (GC) system of the group elliptical NGC 3923. From observations made with the GMOS instrument on the Gemini South Telescope, an additional 50 GC and ultra-compact dwarf (UCD) candidates have been spectroscopically confirmed as members of the NGC 3923 system. When the recessional velocities of these GCs are combined with the 29 GC velocities reported previously, a total sample of 79 GC/UCD velocities is produced. This sample extends to over 6 arcmin (> 6
Supplementary Figures and Tables from Wound treatment and selective help in a termite-hunting ant
Creators: name: Frank, Erik T.
name: Wehrhahn, Marten
name: K. Eduard Linsenmair
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Health Care
subject: Diseases
subject: 111706 Epidemiology
subject: FOS: Health sciences
subject: 60801 Animal Behaviour

description: Word document including Figures S1-S5 and Tables S1-S8
(2679) Charles Wicksteed Armstrong
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
3.IJSHRE-101101-Ozlem.pdf
Creators: name: SIMSEK, Ozlem
name: SEKER, S.Selim
Publisher: name: figshare
Year: 2022
Subjects: Electrical engineering not elsewhere classified
Software engineering not elsewhere classified

description: Electromagnetic (EM) waves can be used for constructing the EM model and analyzing the influence of various parameters. The outcome of the analysis can be useful as input to many remote sensing forecasting models. The present study is investigating the emissivity of thin and thick components of vegetation. The investigated terrain, which consists of leaves and branches is considered thin and thick bodies. The mathematical equations are constructed for, absorption cross-sections and emissivity. Then, by using this equation and already driven relations between relevant electromagnetic parameters of thin and thick are compared. Further, the dependency between the aforementioned parameters in emissivity modeling is examined. A comparison of our results with the literature has a good agreement.
Boron Nitride Nanosheets as Improved and Reusable Substrates for Gold Nanoparticles Enabled Surface Enhanced Raman Spectroscopy
Creators: name: Cai, Qiran
name: Li, Lu Hua
name: Yu, Yuanlie
name: Liu, Yun
name: Huang, Shaoming
name: Chen, Ying
name: Watanabe, Kenji
name: Taniguchi, Takashi
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Atomically thin boron nitride (BN) nanosheets have been found an excellent substrate for noble metal particles enabled surface enhanced Raman spectroscopy (SERS), thanks to their good adsorption of aromatic molecules, high thermal stability and weak Raman scattering. Faceted gold (Au) nanoparticles have been synthesized on BN nanosheets by a simple but controllable and reproducible sputtering and annealing method. The size and density of the Au particles can be controlled by sputtering time, current and annealing temperature etc. Under the same sputtering and annealing conditions, the Au particles on BN of different thicknesses show various sizes because the surface diffusion coefficients of Au depends on the thickness of BN. Intriguingly, decorated with similar morphology and distribution of Au particles, BN nanosheets exhibit better Raman enhancements than silicon substrate as well as bulk BN crystals. Additionally, BN nanosheets show no noticeable SERS signal and hence cause no interference to the Raman signal of analyte. The Au/BN substrates can be reused by heating in air to remove adsorbed analyte without loss of SERS enhancement.
description: Complementary Info included
EC 10246−2707: an eclipsing subdwarf B + M dwarf binary★
Creators: name: Barlow, B. N.
name: LaCluyze, A. P.
name: Geier, S.
name: O'Steen, R. G.
name: Haislip, J. B.
name: Drechsel, H.
name: Kilkenny, D.
name: Clemens, J. C.
name: O'Donoghue, D.
name: Reichart, D. E.
name: Nysewander, M. C.
name: Ivarsen, K. M.
name: Dunlap, B. H.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: We announce the discovery of a new eclipsing hot subdwarf B + M dwarf binary, EC 10246-2707, and present multi-colour photometric and spectroscopic observations of this system. Similar to other HW Vir-type binaries, the light curve shows both primary and secondary eclipses, along with a strong reflection effect from the M dwarf; no intrinsic light contribution is detected from the cool companion. The orbital period is 0.118 507 993 6 ± 0.000 000 000 9 days, or about three hours. Analysis of our time- series spectroscopy reveals a velocity semi-amplitude of K1 = 71.6 ± 1.7 km s−1 for the sdB and best-fitting atmospheric parameters of Teff = 28900 ± 500 K, log g = 5.64 ± 0.06, and log N(He)/N(H) = -2.5 ± 0.2. Although we cannot claim a unique solution from modeling the light curve, the best–fitting model has an sdB mass of 0.45 M⊙ and a cool companion mass of 0.12 M⊙. These results are roughly consistent with a canonical–mass sdB and M dwarf separated by a ∼ 0.84 R⊙. We find no evidence of pulsations in the light curve and limit the amplitude of rapid photometric oscillations to < 0.08%. Using 15 years of eclipse timings, we construct an O-C diagram but find no statistically significant period changes; we rule out | ˙P | > 7.2×10−12. If EC 10246- 2707 evolves into a cataclysmic variable, its period should fall below the famous CV period gap.
(2680) Ronald Rickard Pickering Roberts
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
SN 2009ip à la PESSTO: no evidence for core collapse yet★
Creators: name: Yaron, Ofer
name: Anderson, Joe P.
name: Chen, Ting Wan
name: Inserra, Cosimo
name: Pignata, Giuliano
name: Mattila, Seppo
name: Fraser, Morgan
name: Molinaro, Marco
name: Jerkstrand, Anders
name: Valenti, Stefano
name: Marchi, Sebastián
name: Pastorello, Andrea
name: Burón, Francisco Förster
name: Moore, Justin P.
name: Gal-Yam, Avishay
name: Zhou, George
name: Bauer, Franz Erik
name: Bayliss, Daniel D.R.
name: Benetti, Stefano
name: Smartt, Stephen J.
name: Reichart, Daniel
name: Sternberg, Assaf
name: Bufano, Filomena
name: Smith, Ken W.
name: Childress, Michael
name: Sullivan, Mark
name: Young, David R.
name: Takáts, Katalin
name: Yuan, Fang
name: Mazzali, Paolo
name: Tucker, Brad E.
name: Turatto, Massimo
name: Botticella, Maria Teresa
name: Knapic, Cristina
name: Le Guillou, Laurent
name: Kotak, Rubina
name: Smareglia, Riccardo
name: Haislip, Joshua B.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: We present ultraviolet, optical and near-infrared observations of the interacting transient SN 2009ip, covering the period from the start of the outburst in 2012 October until the end of the 2012 observing season. The transient reached a peak magnitude of
Accretion and diffusion time-scales in sheets and filaments
Creators: name: Heitsch, F.
name: Hartmann, L.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: A comparison of accretion and (turbulent) magnetic diffusion time-scales for sheets and filaments demonstrates that dense star-forming clouds generally will – under realistic conditions – become supercritical due to mass accretion on time-scales at least an order of magnitude shorter than ambipolar and/or turbulent diffusion time-scales. Thus, ambipolar or turbulent diffusion – while present – is unlikely to control the formation of cores and stars.
Measurement of very forward neutron energy spectra for 7 TeV proton--proton collisions at the Large Hadron Collider
Creators: name: Adriani, O.
name: Berti, E.
name: Bonechi, L.
name: Bongi, M.
name: Castellini, G.
name: D'Alessandro, R.
name: Del Prete, M.
name: Haguenauer, M.
name: Itow, Y.
name: Kasahara, K.
name: Kawade, K.
name: Makino, Y.
name: Masuda, K.
name: Matsubayashi, E.
name: Menjo, H.
name: Mitsuka, G.
name: Muraki, Y.
name: Okuno, Y.
name: Papini, P.
name: Perrot, A-L.
name: Ricciarini, S.
name: Sako, T.
name: Sakurai, N.
name: Sugiura, Y.
name: Suzuki, T.
name: Tamura, T.
name: Tiberio, A.
name: Torii, S.
name: Tricomi, A.
name: Turner, W. C.
name: Zhou, Q. D.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The Large Hadron Collider forward (LHCf) experiment is designed to use the LHC to verify the hadronic-interaction models used in cosmic-ray physics. Forward baryon production is one of the crucial points to understand the development of cosmic-ray showers. We report the neutron-energy spectra for LHC $\sqrt{s}$ = 7 TeV proton--proton collisions with the pseudo-rapidity $η$ ranging from 8.81 to 8.99, from 8.99 to 9.22, and from 10.76 to infinity. The measured energy spectra obtained from the two independent calorimeters of Arm1 and Arm2 show the same characteristic feature before unfolding the difference in the detector responses. We unfolded the measured spectra by using the multidimensional unfolding method based on Bayesian theory, and the unfolded spectra were compared with current hadronic-interaction models. The QGSJET II-03 model predicts a high neutron production rate at the highest pseudo-rapidity range similar to our results and the DPMJET 3.04 model describes our results well at the lower pseudo-rapidity ranges. However no model perfectly explains the experimental results in the whole pseudo-rapidity range. The experimental data indicate the most abundant neutron production rate relative to the photon production, which does not agree with predictions of the models.
description: 10pages, 6 figures
Supplementary Figures S1-S5 and Legends from Synchronization, coordination and collective sensing during thermalling flight of freely migrating white storks.
Creators: name: Máté Nagy
name: Couzin, Iain D.
name: Fiedler, Wolfgang
name: Wikelski, Martin
name: Flack, Andrea
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: 60801 Animal Behaviour

description: Exploring how flocks of soaring migrants manage to achieve and maintain coordination while exploiting thermal updrafts is important for understanding how collective movements can enhance the sensing of the surrounding environment. Here we examined the structural organization of a group of circling white storks (Ciconia ciconia) throughout their migratory journey from Germany to Spain. We analysed individual high-resolution GPS trajectories of storks during circling events, and evaluated each bird's flight behaviour in relation to its flock members. Within the flock, we identified subgroups that synchronize their movements and coordinate switches in their circling direction within thermals. These switches in direction can be initiated by any individual of the subgroup, irrespective of how advanced its relative vertical position is, and occur at specific horizontal locations within the thermal allowing the storks to remain within the thermal. Using the motion of all flock members, we were able to examine the dynamic variation of airflow within the thermals, and to determine the specific environmental conditions surrounding the flock. With an increasing amount of high-resolution GPS tracking, we may soon be able to use these animals as distributed sensors providing us with a new means to obtain a detailed knowledge of our environment.This article is part of the theme issue ‘Collective movement in ecology: from emerging technologies to conservation and management’.
UWB Ranging and IMU Data Fusion: Overview and Nonlinear Stochastic Filter for Inertial Navigation
Creators: name: Hashim, Hashim A.
name: Eltoukhy, Abdelrahman E. E.
name: Vamvoudakis, Kyriakos G.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Systems and Control (eess.SY)
subject: Robotics (cs.RO)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: This paper proposes a nonlinear stochastic complementary filter design for inertial navigation that takes advantage of a fusion of Ultra-wideband (UWB) and Inertial Measurement Unit (IMU) technology ensuring semi-global uniform ultimate boundedness (SGUUB) of the closed loop error signals in mean square. The proposed filter estimates the vehicle's orientation, position, linear velocity, and noise covariance. The filter is designed to mimic the nonlinear navigation motion kinematics and is posed on a matrix Lie Group, the extended form of the Special Euclidean Group $\mathbb{SE}_{2}\left(3\right)$. The Lie Group based structure of the proposed filter provides unique and global representation avoiding singularity (a common shortcoming of Euler angles) as well as non-uniqueness (a common limitation of unit-quaternion). Unlike Kalman-type filters, the proposed filter successfully addresses IMU measurement noise considering unknown upper-bounded covariance. Although the navigation estimator is proposed in a continuous form, the discrete version is also presented. Moreover, the unit-quaternion implementation has been provided in the Appendix. Experimental validation performed using a publicly available real-world six-degrees-of-freedom (6 DoF) flight dataset obtained from an unmanned Micro Aerial Vehicle (MAV) illustrating the robustness of the proposed navigation technique. Keywords: Sensor-fusion, Inertial navigation, Ultra-wideband ranging, Inertial measurement unit, Stochastic differential equation, Stability, Localization, Observer design.
description: IEEE Transactions on Intelligent Transportation Systems
(2681) Ronald Victor Fleming Crooks
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Higher homotopy categories, higher derivators, and K-theory
Creators: name: Raptis, George
Publisher: name: Universität Regensburg
Year: 2022
Subjects: subject: 510 Mathematik

description: For every ∞-category C, there is a homotopy n-category hnC and a canonical functor γn:C→hnC. We study these higher homotopy categories, especially in connection with the existence and preservation of (co)limits, by introducing a higher categorical notion of weak colimit. Using homotopy n-categories, we introduce the notion of an n-derivator and study the main examples arising from ∞-categories. Following the work of Maltsiniotis and Garkusha, we define K-theory for ∞-derivators and prove that the canonical comparison map from the Waldhausen K-theory of C to the K-theory of the associated n-derivator D(n)C is (n+1)-connected. We also prove that this comparison map identifies derivator K-theory of ∞-derivators in terms of a universal property. Moreover, using the canonical structure of higher weak pushouts in the homotopy n-category, we also define a K-theory space K(hnC,can) associated to hnC. We prove that the canonical comparison map from the Waldhausen K-theory of C to K(hnC,can) is n-connected.
Landau pole in the Standard Model with weakly interacting scalar fields
Creators: name: Hamada, Yuta
name: Kawana, Kiyoharu
name: Tsumura, Koji
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the Standard Model with a new scalar field $X$ which is a $n_X^{}$ representation of the $SU(2)_L$ with a hypercharge $Y_X$. The renormalization group running effects on the new scalar quartic coupling constants are evaluated. Even if we set the scalar quartic coupling constants to be zero at the scale of the new scalar field, the coupling constants are induced by the one-loop effect of the weak gauge bosons. Once non-vanishing couplings are generated, the couplings rapidly increase by renormalization group effect of the quartic coupling constant itself. As a result, the Landau pole appears below Planck scale if $n_X^{}\geq 4$. We find that the scale of the obtained Landau pole is much lower than that evaluated by solving the one-loop beta function of the gauge coupling constants.
description: 8 pages, 2 figures, 2 tables(v1); published version(v2)
(2676) Richard Harold Armstrong
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Evidence for dust destruction from the early-time colour change of GRB 120119A
Creators: name: Horesh, Assaf
name: Melandri, Andrea
name: LaCluyze, Aaron
name: Cobb, Bethany E.
name: Perley, Daniel A.
name: Mundell, Carole G.
name: Cenko, S. Bradley
name: Richards, Joseph W.
name: Filippenko, Alexei V.
name: Bloom, Joshua S.
name: James, Berian
name: Corsi, Alessandra
name: Steele, Iain
name: Gomboc, Andreja
name: Morgan, Adam N.
name: Haislip, Joshua B.
name: Li, Weidong
name: Reichart, Daniel E.
name: Cucchiara, Antonino
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: We present broad-band observations and analysis of
Lowest-order equivalent nonstandard finite element methods for biharmonic plates
Creators: name: Carstensen, Carsten
name: Nataraj, Neela
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65N30, 65N12, 65N50

description: The popular (piecewise) quadratic schemes for the biharmonic equation based on triangles are the nonconforming Morley finite element, the discontinuous Galerkin, the $C^0$ interior penalty, and the WOPSIP schemes. Those methods are modified in their right-hand side $F\in H^{-2}(Ω)$ replaced by $F\circ (JI_{\rm M}) $ and then are quasi-optimal in their respective discrete norms. The smoother $JI_{\rm M}$ is defined for a piecewise smooth input function by a (generalized) Morley interpolation $I_{\rm M}$ followed by a companion operator $J$. An abstract framework for the error analysis in the energy, weaker and piecewise Sobolev norms for the schemes is outlined and applied to the biharmonic equation. Three errors are also equivalent in some particular discrete norm from [Carstensen, Gallistl, Nataraj: Comparison results of nonstandard $P_2$ finite element methods for the biharmonic problem, ESAIM Math. Model. Numer. Anal. (2015)] without data oscillations. This paper extends the work [Veeser, Zanotti: Quasi-optimal nonconforming methods for symmetric elliptic problems, SIAM J. Numer. Anal. 56 (2018)] to the discontinuous Galerkin scheme and adds error estimates in weaker and piecewise Sobolev norms.
title: Investigation on the aerodynamic performance of cycloidal rotors with active leading-edge morphing
Creators: name: Ferrier, Liam
Publisher: name: University of Glasgow
Year: 2020
Subjects: subject: Aerodynamics, dynamic stall, cycloidal rotors, morphing, computation fluid dynamics, wind tunnel testing.

description: A cycloidal rotor is a novel form of propulsion system which has a geometrical design differing completely from the conventional screw propeller. The blades of a cycloidal rotor rotate about the horizontal axis of rotation. A key advantage of this rotor system is the instantaneous control of the net thrust vector, meaning that the thrust can be adjusted to any desired direction, perpendicular to the rotor’s horizontal axis of rotation. Few investigations have been conducted to assess the negative impact dynamic stall has on the cycloidal rotor’s performance characteristics. Dynamic stall is a complex phenomenon associated with unsteady aerofoil pitching motion that generates large hysteresis effects on the blade’s aerodynamic characteristics during the pitch cycle. In this study, an investigation is conducted to assess the effect of active leading-edge morphing on alleviating the negative impact dynamic stall has on the aerofoil aerodynamic characteristics as well as the cycloidal rotor performance characteristics. Computational studies are performed for a large-scale cycloidal rotor and for a single pitch-oscillating symmetric aerofoil operating at a large Reynolds number, Re greater than 1,000,000. Dynamic stall wind tunnel testing of a single NACA0015 aerofoil with an active leading-edge flap is also conducted to validate the effects of leading-edge morphing from the single pitch-oscillating aerofoil’s CFD model. The main findings from this study showed that applying active leading-edge morphing resulted in significant improvements of both the single aerofoil’s aerodynamic characteristics and the cycloidal rotor’s performance characteristics. The results from the CFD for the single pitch-oscillating aerofoil showed that the negative effects of dynamic stall were alleviated when applying active leading-edge morphing. The results from the cycloidal rotor CFD simulations showed that the effects of dynamic stall were alleviated which led to a reduction in the level of blade-wake interference. This led to a significant improvement in the cycloidal rotor performance characteristics, such as a 4-blade cycloidal rotor with active leading-edge morphing applied producing less power dissipation in comparison to a rigid 2-blade cycloidal rotor. The main findings from the experimental analysis showed that active leading-edge morphing reduced negative effects of dynamic stall such as the level of aerodynamic hysteresis, as well as improving the aerodynamic efficiency.
Temperature dependence of dielectric breakdown of silicone-based dielectric elastomers
Creators: name: Yu, Liyun
name: Vudayagiri, Sindhu
name: Jensen, Lucy Ajakaiye
name: Skov, Anne Ladegaard
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Molecular Biology
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy

description: A large number of insulation/dielectric failures in power systems are related to thermally-induced dielectrical breakdown, also known as ‘thermal breakdown’, at higher operating temperatures. In this work, the thermal breakdown behavior of typical silicone formulations, used as dielectrics in stretchable electronic devices, is analyzed at practically relevant operating temperatures ranging from 20°C to 80°C. An effective way of delaying the thermal breakdown of insulating materials is to blend micro- or nano-sized inorganic particles with high thermal conductivity, to dissipate better any losses generated during energy transduction. Therefore, two types of commercial silicone formulations, blended with two types of rutile hydrophobic, high-dielectric TiO2 fillers, are investigated in relation to their dielectric properties, namely, relative permittivity, the dissipation factor, and electrical breakdown strength. The breakdown strengths of these silicone composites are subsequently evaluated using Weibull analysis, which indicates a negative correlation between temperature and shape parameter for all compositions, thus illustrating that the homogeneity of the samples decreases in line with temperature, but the breakdown strengths nevertheless increase initially due to the trapping effect from the high-permittivity fillers.
Supplementary Figures S1-S5 and Legends from Synchronization, coordination and collective sensing during thermalling flight of freely migrating white storks
Creators: name: Máté Nagy
name: Couzin, Iain D.
name: Fiedler, Wolfgang
name: Wikelski, Martin
name: Flack, Andrea
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: 60801 Animal Behaviour

description: Exploring how flocks of soaring migrants manage to achieve and maintain coordination while exploiting thermal updrafts is important for understanding how collective movements can enhance the sensing of the surrounding environment. Here we examined the structural organization of a group of circling white storks (Ciconia ciconia) throughout their migratory journey from Germany to Spain. We analysed individual high-resolution GPS trajectories of storks during circling events, and evaluated each bird's flight behaviour in relation to its flock members. Within the flock, we identified subgroups that synchronize their movements and coordinate switches in their circling direction within thermals. These switches in direction can be initiated by any individual of the subgroup, irrespective of how advanced its relative vertical position is, and occur at specific horizontal locations within the thermal allowing the storks to remain within the thermal. Using the motion of all flock members, we were able to examine the dynamic variation of airflow within the thermals, and to determine the specific environmental conditions surrounding the flock. With an increasing number of high-resolution GPS-tracking, we may soon be able to use these animals as distributed sensors providing us with a new means to obtain a detailed knowledge of our environment.This article is part of the theme issue ‘Collective movement in ecology: from emerging technologies to conservation and management’.
Supplementary Methods from Clownfishes evolution below and above the species level.
Creators: name: Rolland, Jonathan
name: Silvestro, Daniele
name: Litsios, Glenn
name: Laurélène Faye
name: Salamin, Nicolas
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Ecology

description: The difference between rapid morphological evolutionary changes observed in populations and the long periods of stasis detected in the fossil record has raised a decade-long debate about the exact role played by intraspecific mechanisms at the interspecific level. Although they represent different scales of the same evolutionary process, micro- and macroevolution are rarely studied together and few empirical studies have compared the rates of evolution and the selective pressures between both scales. Here, we analyse morphological, genetic and ecological traits in clownfishes at different evolutionary scales and demonstrate that the tempo of molecular and morphological evolution at the species level can be, to some extent, predicted from parameters estimated below the species level, such as the effective population size or the rate of molecular evolution within population. We also show that similar codons in the gene of the rhodopsin RH1, a light-sensitive receptor protein, are under positive selection at the intra and interspecific scales, suggesting that similar selective pressures are acting at both levels.
Figure S2 from Clownfishes evolution below and above the species level.
Creators: name: Rolland, Jonathan
name: Silvestro, Daniele
name: Litsios, Glenn
name: Laurélène Faye
name: Salamin, Nicolas
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Ecology

description: Description of the five morphological traits used in the study. Each trait is described according to the landmarks on the picture. Body ratio: The body ratio was calculated by dividing the standard length (distance between the snout (1) and the base of the tail, which is exactly between (8) and (9)) by the body depth (segment between the base of the pelvic fin (11) and the base of the spinous dorsal fin (6)). Head ratio: The head ratio represents the standard length divided by the head length (distance between the snout (1) and the origin of the opercular (12)). Peduncle factor: The peduncle depth factor was calculated by dividing the body depth by the caudal peduncle depth (distance between the posterior end of the dorsal fin base (7) and the posterior end of the anal fin base (10)). Eye height ratio: The eye height ratio is the ratio between the body depth and the eye height, which is the distance between the center of the eye (center of gravity of (2, 3, 4, 5)) and the point where the line parallel to the body depth (passing through the center of the eye) meets the line parallel to the standard length (passing through (11)). Snout angle: The snout angle is the angle calculated between the standard length and the line that passes through the snout tip (1) and the base of the spinous dorsal fin (6)).
(2677) Arthur Bowring Leather
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
(2673) Catherine Elizabeth Clark
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Table S3 from Clownfishes evolution below and above the species level.
Creators: name: Rolland, Jonathan
name: Silvestro, Daniele
name: Litsios, Glenn
name: Laurélène Faye
name: Salamin, Nicolas
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Ecology

description: List of the Genbank accession numbers of the newly sequenced RH1 in this study for the 26 species of clownfishes and the mean water depth used from fishbase (except A. clarkia for which we use our field data).
(2675) Mary [Clark]
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Supplementary Methods from Clownfishes evolution below and above the species level
Creators: name: Rolland, Jonathan
name: Silvestro, Daniele
name: Litsios, Glenn
name: Laurélène Faye
name: Salamin, Nicolas
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Ecology

description: The difference between rapid morphological evolutionary changes observed in populations and the long periods of stasis detected in the fossil record has raised a decade-long debate about the exact role played by intraspecific mechanisms at the interspecific level. Although they represent different scales of the same evolutionary process, micro- and macroevolution are rarely studied together and few empirical studies have compared the rates of evolution and the selective pressures between both scales. Here, we analyse morphological, genetic and ecological traits in clownfishes at different evolutionary scales and demonstrate that the tempo of molecular and morphological evolution at the species level can be, to some extent, predicted from parameters estimated below the species level, such as the effective population size or the rate of molecular evolution within population. We also show that similar codons in the gene of the rhodopsin RH1, a light-sensitive receptor protein, are under positive selection at the intra and interspecific scales, suggesting that similar selective pressures are acting at both levels.
Probing the role of the galactic environment in the formation of stellar clusters; using M83 as a test bench
Creators: name: Adamo, Angela
name: Kruijssen, Diederik
name: Bastian, Nate
name: Silva-Villa, Esteban
name: Ryon, Jenna
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a study of the M83 cluster population, covering the disc of the galaxy between radii of 0.45 and 4.5 kpc. We aim to probe the properties of the cluster population as a function of distance from the galactic centre. We observe a net decline in cluster formation efficiency ($Γ$, i.e. the amount of star formation happening in bound clusters) from about 26 % in the inner region to 8 % in the outer part of the galaxy. The recovered $Γ$ values within different regions of M83 follow the same $Γ$ versus star formation rate density relation observed for entire galaxies. We also probe the initial cluster mass function (ICMF) as a function of galactocentric distance. We observe a significant steepening of the ICMF in the outer regions (from $-1.90\pm0.11$ to $-2.70\pm0.14$) and for the whole galactic cluster population (slope of $-2.18\pm0.07$) of M83. We show that this change of slope reflects a more fundamental change of the 'truncation mass' at the high-mass end of the distribution. This can be modelled as a Schechter function of slope $-2$ with an exponential cut-off mass ($M_{\rm c}$) that decreases significantly from the inner to the outer regions (from 4.00 to $0.25\times 10^5$ M$_\odot$) while the galactic $M_{\rm c}$ is $\approx1.60\times10^5$ M$_\odot$. The trends in Γand ICMF are consistent with the observed radial decrease of the $Σ({\rm H}_2)$, hence in gas pressure. As gas pressure declines cluster formation becomes less efficient. We conclude that the host galaxy environment appears to regulate 1) the fraction of stars locked in clusters; 2) the upper mass limit of the ICMF, consistently described by a near-universal slope $-2$ truncated at the high-mass end.
description: 16 pages, revised Table 2 and B1, and Figure 3, 4, and 7, MNRAS in press