cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Observing the earliest moments of supernovae using strong gravitational lenses
Creators: name: Foxley-Marrable, Max
name: Collett, Thomas E.
name: Frohmaier, Chris
name: Goldstein, Daniel A.
name: Kasen, Daniel
name: Swann, Elizabeth
name: Bacon, David
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We determine the viability of exploiting lensing time delays to observe strongly gravitationally lensed supernovae (gLSNe) from first light. Assuming a plausible discovery strategy, the Legacy Survey of Space and Time (LSST) and the Zwicky Transient Facility (ZTF) will discover $\sim$ 110 and $\sim$ 1 systems per year before the supernova (SN) explosion in the final image respectively. Systems will be identified $11.7^{+29.8}_{-9.3}$ days before the final explosion. We then explore the possibility of performing early-time observations for Type IIP and Type Ia SNe in LSST-discovered systems. Using a simulated Type IIP explosion, we predict that the shock breakout in one trailing image per year will peak at $\lesssim$ 24.1 mag ($\lesssim$ 23.3) in the $B$-band ($F218W$), however evolving over a timescale of $\sim$ 30 minutes. Using an analytic model of Type Ia companion interaction, we find that in the $B$-band we should observe at least one shock cooling emission event per year that peaks at $\lesssim$ 26.3 mag ($\lesssim$ 29.6) assuming all Type Ia gLSNe have a 1 M$_\odot$ red giant (main sequence) companion. We perform Bayesian analysis to investigate how well deep observations with 1 hour exposures on the European Extremely Large Telescope would discriminate between Type Ia progenitor populations. We find that if all Type Ia SNe evolved from the double-degenerate channel, then observations of the lack of early blue flux in 10 (50) trailing images would rule out more than 27% (19%) of the population having 1 M$_\odot$ main sequence companions at 95% confidence.
description: 17 pages, 15 figures (including appendices). Accepted by MNRAS 3rd May 2020
An Investigation into the Best Structural Material for the New SUB
Creators: name: Sequeira, Sheldon
name: Pomerleau, Jérôme
name: Wei Xing, William
Publisher: name: The University of British Columbia
Year: 2010

description: Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
FINDING THE RIGHT NOMINAL ANCHOR: THE COINTEGRATION OF MONEY, CREDIT AND NOMINAL INCOME IN NORWAY
Creators: name: Bardsen, Gunnar
name: Klovland, Jan Tore
name: Bardsen, Gunnar
name: Klovland, Jan Tore
Publisher: name: Unknown
Year: 1990
Subjects: Financial Economics
Research Methods/ Statistical Methods

description: Using cointegration techniques this paper presents an empirical analysis of the relationship between nominal GDP or domestic expenditure on the one hand and money and credit variables on the other. The main findings are: (1) In the period from 1966 to 1983 there is a relatively firm relationship between the nominal income variables and credit, which subsequentl breaks down completely during the ensuing period of credit market deregulation; (2~ Nominal income and the broad money stock, M2, are cointegrated throughout the period 1966 to 1989 within a model augmented by the own rate of interest on M2 and a bond yield. Thus M2, adjusted for the effects of interest rates affecting the demand for money, seems to provide the most reliable long—run anchor for nominal income in Norway in the period considered here.
Additional file 5 of Microbiota characterization of Exaiptasia diaphana from the Great Barrier Reef
Creators: name: Hartman, Leon Michael
name: Oppen, Madeleine Josephine Henriette Van
name: Blackall, Linda Louise
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Ecology

description: Additional file 5: Table S3. Relative abundance of phyla in each AIMS1–4 genotype.
A weight-dependent local correlation density-functional approximation for ensembles
Creators: name: Loos, Pierre-François
name: Fromager, Emmanuel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We report a local, weight-dependent correlation density-functional approximation that incorporates information about both ground and excited states in the context of density-functional theory for ensembles (eDFT). This density-functional approximation for ensembles is specially designed for the computation of single and double excitations within Gross--Oliveira--Kohn (GOK) DFT (i.e., eDFT for neutral excitations), and can be seen as a natural extension of the ubiquitous local-density approximation in the context of ensembles. The resulting density-functional approximation, based on both finite and infinite uniform electron gas models, automatically incorporates the infamous derivative discontinuity contributions to the excitation energies through its explicit ensemble weight dependence. Its accuracy is illustrated by computing single and double excitations in one-dimensional many-electron systems in the weak, intermediate and strong correlation regimes. Although the present weight-dependent functional has been specifically designed for one-dimensional systems, the methodology proposed here is general, i.e., directly applicable to the construction of weight-dependent functionals for realistic three-dimensional systems, such as molecules and solids.
description: 13 pages, 8 figures, supporting information available
Paisagem e património: um percurso cultural no  território de S. João da Pesqueira
Creators: name: Artur Oliveira
Publisher: name: Revista Memória Rural
Year: 2023

description: O início de uma viagem tem indubitavelmente um ponto de partida, um local, um espaço e  o desejo intrínseco de iniciar um percurso, de conhecer um território, um monumento, um sítio, um  conjunto arquitetónico e as imaterialidades produzidas pelo principal ator na paisagem, o ser humano. 

Neste percurso proposto, a paisagem cultural do vale do Douro e a sua especificidade em S. João  da Pesqueira, que para além de estar naturalmente absorvida nas interpretações dessa paisagem  cultural, pretende-se particularizar um itinerário que tem como elemento físico a Estrada Nacional 222  e 222-3. Ao longo desse itinerário que atravessa este território, são sinalizados e descritos diferentes  momentos dessa paisagem e seu diverso património, numa perspetiva de percurso também ele culutural.
Practical Quantum Key Distribution with Polarization-Entangled Photons
Creators: name: Poppe, A.
name: Fedrizzi, A.
name: Loruenser, T.
name: Maurhardt, O.
name: Ursin, R.
name: Boehm, H. R.
name: Peev, M.
name: Suda, M.
name: Kurtsiefer, C.
name: Weinfurter, H.
name: Jennewein, T.
name: Zeilinger, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present an entangled-state quantum cryptography system that operated for the first time in a real world application scenario. The full key generation protocol was performed in real time between two distributed embedded hardware devices, which were connected by 1.45 km of optical fiber, installed for this experiment in the Vienna sewage system. The generated quantum key was immediately handed over and used by a secure communication application.
description: 5 pages, 3 figures
Formation of intracluster globular clusters
Creators: name: Yahagi, Hideki
name: Bekki, Kenji
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We first present the results of numerical simulations on formation processes and physical properties of old globular clusters (GCs) located within clusters of galaxies (``intracluster GCs'') and in between clusters of galaxies (``intercluster GCs''). Our high-resolution cosmological simulations with models of GC formation at high redshifts ($z>6$) show that about 30 % of all GCs in a rich cluster can be ragarded as intracluster GCs that can freely drift being trapped by gravitational potential of the cluster rather than by the cluster member galaxies. The radial surface density profiles of the simulated intracluster GCs are highly likely to be flatter than those of GCs within cluster member galaxies. We also find that about 1% of all GCs formed before $z>6$ are not located within any virialized halos and can be regarded as ``intercluster'' (or ``intergalactic'') GCs. We discuss the dependences of physical properties of intracluster and intercluster GCs on the initial density profiles of GCs within low-mass dark matter halos at high redshifts ($z>6$).
description: 5 pages, 5 figures (color figure for Figure 1), accepted by MNRAS. The dependences of the results on the initial GC density profiles at z=6 are added
Additional file 6 of Microbiota characterization of Exaiptasia diaphana from the Great Barrier Reef
Creators: name: Hartman, Leon Michael
name: Oppen, Madeleine Josephine Henriette Van
name: Blackall, Linda Louise
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Ecology

description: Additional file 6: Table S4. Pairwise log2 fold change for 20 most abundant phylum-level taxa. Table S5. Pairwise log2 fold change for 20 most abundant genus-level taxa. Figure S9. Heatmaps of the top 20 taxa by relative abundance at order (a) and family (b) levels. Table S6. Pairwise log2 fold change for 20 most abundant order-level taxa. Table S7. Pairwise log2 fold change for 20 most abundant family-level taxa.
A unified framework for 21cm tomography sample generation and parameter inference with Progressively Growing GANs
Creators: name: List, Florian
name: Lewis, Geraint F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Creating a database of 21cm brightness temperature signals from the Epoch of Reionisation (EoR) for an array of reionisation histories is a complex and computationally expensive task, given the range of astrophysical processes involved and the possibly high-dimensional parameter space that is to be probed. We utilise a specific type of neural network, a Progressively Growing Generative Adversarial Network (PGGAN), to produce realistic tomography images of the 21cm brightness temperature during the EoR, covering a continuous three-dimensional parameter space that models varying X-ray emissivity, Lyman band emissivity, and ratio between hard and soft X-rays. The GPU-trained network generates new samples at a resolution of $\sim 3'$ in a second (on a laptop CPU), and the resulting global 21cm signal, power spectrum, and pixel distribution function agree well with those of the training data, taken from the 21SSD catalogue \citep{Semelin2017}. Finally, we showcase how a trained PGGAN can be leveraged for the converse task of inferring parameters from 21cm tomography samples via Approximate Bayesian Computation.
description: 15 pages, 8+1 figures, accepted by MNRAS
Effects of social distancing and isolation on epidemic spreading: a dynamical density functional theory model
Creators: name: Vrugt, Michael te
name: Bickmann, Jens
name: Wittkowski, Raphael
Publisher: name: arXiv
Year: 2020
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Biological Physics (physics.bio-ph)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: For preventing the spread of epidemics such as the coronavirus disease COVID-19, social distancing and the isolation of infected persons are crucial. However, existing reaction-diffusion equations for epidemic spreading are incapable of describing these effects. We present an extended model for disease spread based on combining an SIR model with a dynamical density functional theory where social distancing and isolation of infected persons are explicitly taken into account. The model shows interesting nonequilibrium phase separation associated with a reduction of the number of infections, and allows for new insights into the control of pandemics.
description: 9 pages, 3 figures
A free-floating or wide-orbit planet in the microlensing event OGLE-2019-BLG-0551
Creators: name: Mroz, P.
name: Poleski, R.
name: Han, C.
name: Udalski, A.
name: Gould, A.
name: Szymanski, M. K.
name: Soszynski, I.
name: Pietrukowicz, P.
name: Kozlowski, S.
name: Skowron, J.
name: Ulaczyk, K.
name: Gromadzki, M.
name: Rybicki, K.
name: Iwanek, P.
name: Wrona, M.
name: Albrow, M. D.
name: Chung, S.
name: Hwang, K.
name: Ryu, Y.
name: Jung, Y. K.
name: Shin, I.
name: Shvartzvald, Y.
name: Yee, J. C.
name: Zang, W.
name: Cha, S.
name: Kim, D.
name: Kim, H.
name: Kim, S.
name: Lee, C.
name: Lee, D.
name: Lee, Y.
name: Park, B.
name: Pogge, R. W.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: High-cadence observations of the Galactic bulge by the microlensing surveys led to the discovery of a handful of extremely short-timescale microlensing events that can be attributed to free-floating or wide-orbit planets. Here, we report the discovery of another strong free-floating planet candidate, which was found from the analysis of the gravitational microlensing event OGLE-2019-BLG-0551. The light curve of the event is characterized by a very short duration (<3 d) and a very small amplitude (< 0.1 mag). From modeling of the light curve, we find that the Einstein timescale, tE = 0.381 +/- 0.017 d, is much shorter, and the angular Einstein radius, thetaE = 4.35 +/- 0.34 uas, is much smaller than those of typical lensing events produced by stellar-mass lenses (tE ~ 20 d, thetaE ~ 0.3 mas), indicating that the lens is very likely to be a planetary-mass object. We conduct an extensive search for possible signatures of a companion star in the light curve of the event, finding no significant evidence for the putative host star. For the first time, we also demonstrate that the angular Einstein radius of the lens does not depend on blending in the low-magnification events with strong finite source effects.
description: accepted for publication in AJ, minor changes
Modeling the atomic structure in the vicinity of the spherical voids and calculation of void growth rate anisotropy in bcc iron and tungsten
Creators: name: Nazarov, A. V.
name: Melnikov, A. P.
name: Mikheev, A. A.
name: Ershova, I. V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the influence of the atomic structure in the vicinity of voids on their growth rate anisotropy. In the first part, we model the atomic structure in the vicinity of nanovoids in Fe and W using the advanced Molecular Statics method. In the second part, we use the earlier obtained equations that taking the influence of elastic fields into account to calculate the shifting rate of the void surface elements, and to evaluate the components of the strain tensor we use the atomic structure modeling results from the first part. The calculations are performed for voids of several sizes at certain oversaturation's in a wide temperature range. The simulation results for the mentioned metals with a bcc structure show that displacements of atoms located along the crystallographic directions of the 100, 110, 111 types in the vicinity of the voids are significantly different, and this anisotropy of atom displacements leads to a reduction of spherical symmetry for the shifting rate of the surface elements. As the result, the initially spherical void shape becomes faceted.
description: 7 pages, 6 figures
Temperature dependence of microwave and THz dielectric response in Srn+1TinO3n+1 (n=1-4)
Creators: name: Noujni, D.
name: Kamba, S.
name: Pashkin, A.
name: Bovtun, V.
name: Petzelt, J.
name: Axelsson, A-K.
name: Alford, N. McN
name: Wise, P. L.
name: Reaney, I. M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The microwave, near-millimetre and infrared (IR) dielectric response of Srn+1TinO3n+1 (n=1-4) Ruddlesden-Popper homologous series was studied in the temperature range 10 to 300 K. Remarkable softening of the polar optical mode was observed in Sr4Ti3O10 and Sr5Ti4O13 which explains the increase in microwave permittivity and dielectric loss upon cooling. However, both samples have a distinct content of SrTiO3 dispersed between SrO layers. It is proposed therefore that the observed soft mode originates from the SrTiO3 microscopic inclusions.
description: The 10th European Meeting on Ferroelectricity, August 2003, Cambridge, UK Ferroelectrics, in press
R&D Orientation of Agricultural Co-Operatives and Agribusinesses in the Western Cape and Kwazulu-Natal
Creators: name: Lutge, R. B.
name: Kleynhans, T. E.
name: Lutge, R. B.
name: Kleynhans, T. E.
Publisher: name: Unknown
Year: 2001
Subjects: Agribusiness

description: The eight biggest co-operatives and agribusinesses in Western Cape and KwaZulu-Natal were selected for a survey to determine the current and future level of R&D expenditure and human resources allocated to R&D. Furthermore, the survey assessed the perceptions of management and members/shareholders of the co-operatives/agribusinesses on the innovativeness, quality of R&D and the R&D capacity of their organisations and of the government and other private sector R&D institutions. The survey also covered the degree of satisfaction expressed by members/shareholders concerning their influence in determining the research agenda, as well as their opinion regarding the private sector's responsibility to finance R&D. The results show that current expenditure on agricultural R&D as a percentage of annual turnover by the majority of co-operatives and agribusinesses in the Western Cape and Kwazulu-Natal is far below the international norm for companies trying to be internationally competitive. _According _ to the perceptions of producers as members/shareholders of agricultural co-operatives/agribusinesses, as well as the management of these organisations the amount and the quality of R&D support by the South African Government to the commercial agricultural sector decreased. They have a negative view of the innovative capacity _of the government R&D institutions in comparison with the capacities of their own organisations' or private sector organisations in general. They accept private sector's responsibility to finance R&D on a larger scale and intend to increase their own spending over the next five years. Thee reported perceptions suggest that agricultural co­operatives/agribusinesses have not compensated sufficiently for the decreasing government supported R&D and should develop a strong strategic R&D orientation to investigate potentially new production, processing and marketing activities continuously.
Anomalous critical point behavior in dilute magnetic semiconductor (Ca,Na)(Zn,Mn)2Sb2
Creators: name: Yu, Shuang
name: Liu, Xinyu
name: Zhao, Guoqiang
name: Peng, Yi
name: Wang, Xiancheng
name: Zhao, Jianfa
name: Li, Wenmin
name: Deng, Zheng
name: Furdyna, Jacek K.
name: Uemura, Y. J.
name: Jin, Changqing
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In this paper we report successful synthesis and magnetic properties of (Ca,Na)(Zn,Mn)2Sb2 as a new ferromagnetic dilute magnetic semiconductor (DMS). In this DMS material the concentration of magnetic moments can be controlled independently from the concentration of electric charge carriers that are required for mediating magnetic interactions between these moments. This feature allows us to separately investigate the effect of carriers and of spins on the ferromagnetic properties of this new DMS alloy, and particularly of the critical ferromagnetic behavior. We use modified Arrott plot technique to establish critical exponents b, g, and d of this alloy. We find that at low Mn concentrations (< 10 at.%), it is governed by short-range 3D-Ising behavior, with experimental values of b, g, and d very close to theoretical 3D-Ising values of 0.325, 1.24, and 4.815. However, as the Mn concentration increases, this DMS material exhibits a mixed-phase behavior, with g retaining its 3D-Ising characteristics, but b crossing over to longer-range mean-field behavior.
description: 28 pages, 6figures, 1 table
A physically unclonable function using NV diamond magnetometry and micromagnet arrays
Creators: name: Kehayias, Pauli
name: Bussmann, Ezra
name: Lu, Tzu-Ming
name: Mounce, Andrew M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Instrumentation and Detectors (physics.ins-det)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A physically unclonable function (PUF) is an embedded hardware security measure that provides protection against counterfeiting. Here we present our work on using an array of randomly-magnetized micron-sized ferromagnetic bars (micromagnets) as a PUF. We employ a 4 $μ$m thick surface layer of nitrogen-vacancy (NV) centers in diamond to image the magnetic fields from each micromagnet in the array, after which we extract the magnetic polarity of each micromagnet using image analysis techniques. After evaluating the randomness of the micromagnet array PUF and the sensitivity of the NV readout, we conclude by discussing the possible future enhancements for improved security and magnetic readout.
description: 8 pages main text (4 figures), 4 pages supplementary information (3 figures)
AN INVESTIGATION INTO THE SUB RENEWAL PROJECT: SECTION RENEWABLE ENERGY SOURCE
Creators: name: Chan, Ricky
name: Krishnan, Jaivan
name: Leung, Alexander
Publisher: name: The University of British Columbia
Year: 2010

description: Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
Additional file 3 of Microbiota characterization of Exaiptasia diaphana from the Great Barrier Reef
Creators: name: Hartman, Leon Michael
name: Oppen, Madeleine Josephine Henriette Van
name: Blackall, Linda Louise
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Ecology

description: Additional file 3: Figure S6. Rarefaction curves for all samples. Figure S7. Relative abundance of family level taxa. Figure S8. Legend of family-level taxa.
Additional file 4 of Microbiota characterization of Exaiptasia diaphana from the Great Barrier Reef
Creators: name: Hartman, Leon Michael
name: Oppen, Madeleine Josephine Henriette Van
name: Blackall, Linda Louise
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Ecology

description: Additional file 4: Table S2. Tukey’s HSD p-values from pair-wise Shannon value comparison.
Comment on "Path integral action of a particle with the generalized uncertainty principle and correspondence with noncommutativity"
Creators: name: Park, DaeKil
name: Jung, Eylee
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recently in [Phys. Rev. D $99$ $(2019)$ 104010] the non-relativistic Feynman propagator for harmonic oscillator system is presented when the generalized uncertainty principle is employed. In this short comment it is shown that the expression is incorrect. We also derive the correct expression of it.
description: 5 pages, will appear in PRD (comment)
Descending plane partitions and rhombus tilings of a hexagon with triangular hole
Creators: name: Krattenthaler, Christian
Publisher: name: arXiv
Year: 2003
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05A15 (Primary)

description: It is shown that the descending plane partitions of Andrews can be geometrically realized as cyclically symmetric rhombus tilings of a certain hexagon where an equilateral triangle of side length 2 has been removed from its centre. Thus, the lattice structure for descending plane partitions, as introduced by Mills, Robbins and Rumsey, allows for an elegant visualization.
description: 8 pages, AmS-TeX
Additional file 2 of Microbiota characterization of Exaiptasia diaphana from the Great Barrier Reef
Creators: name: Hartman, Leon Michael
name: Oppen, Madeleine Josephine Henriette Van
name: Blackall, Linda Louise
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Ecology

description: Additional file 2: Figure S4. Holding tank at AIMS. Figure S5. Holding tank outflow with anemones.
Effect of Mn substitution on the delicate balance between structure and properties of Gd1.4Ce0.6Sr2RuCu2O10
Creators: name: Kalavathi, S.
name: Janaki, J.
name: Sairam, T. N.
name: Mani, Awadhesh
name: Rawat, R.
name: Sastry, V. Sankara
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Some new members of a Ruthenocuprate (2212) series have been synthesized by Mn substitution for Ru in Gd1.4Ce0.6Sr2RuCu2O10 . Characterisation by XRD phase analysis followed by Rietveld refinement has been carried out. IR spectroscopy studies and Rietveld refinements are consistent with substitution of Mn at Ru site. XRD studies indicate changes in structural features on substitution including a significant change in lattice parameter for a very low substitution level (1mole% of Ru). The pristine compound shows coexistence of superconductivity and magnetism. Four probe resistivity studies indicate a semiconductor like upturn in resistivity and absence of superconductivity even for Mn substitution levels as low as 1 mole%. a. c. susceptibility measurements show a progressive suppression of the magnetic transition temperature as well as a smearing of the magnetic transition as a function of Mn substitution. Possible reasons for absence of superconductivity have been discussed.
description: 7 pages
Beyond Gaia: Asteroseismic Distances of M giants using Ground-Based Transient Surveys
Creators: name: Auge, Connor
name: Huber, Daniel
name: Heinze, Aren
name: Shappee, B. J.
name: Tonry, John
name: Chakrabarti, Sukanya
name: Sanderson, Robyn E.
name: Denneau, Larry
name: Flewelling, Heather
name: Holoien, Thomas W. -S.
name: Kochanek, C. S.
name: Pignata, Giuliano
name: Sickafoose, Amanda
name: Stalder, Brian
name: Stanek, K. Z.
name: Stello, Dennis
name: Thompson, Todd A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Evolved stars near the tip of the red giant branch (TRGB) show solar-like oscillations with periods spanning hours to months and amplitudes ranging from $\sim$1 mmag to $\sim$100 mmag. The systematic detection of the resulting photometric variations with ground-based telescopes would enable the application of asteroseismology to a much larger and more distant sample of stars than is currently accessible with space-based telescopes such as \textit{Kepler} or the ongoing Transiting Exoplanet Survey Satellite (\textit{TESS}) mission. We present an asteroseismic analysis of 493 M giants using data from two ground-based surveys: the Asteroid Terrestrial-impact Last Alert System (ATLAS) and the All-Sky Automated Survey for Supernovae (ASAS-SN). By comparing the extracted frequencies with constraints from \textit{Kepler}, the Sloan Digital Sky Survey Apache Point Observatory Galaxy Evolution Experiment (APOGEE), and Gaia we demonstrate that ground-based transient surveys allow accurate distance measurements to oscillating M giants with a precision of $\sim$15$\%$. Using stellar population synthesis models we predict that ATLAS and ASAS-SN can provide asteroseismic distances to $\sim$2$\times$10$^{6}$ galactic M giants out to typical distances of $20-50 \; \rm{kpc}$, vastly improving the reach of Gaia and providing critical constraints for Galactic archaeology and galactic dynamics.
description: 13 pages, 8 figures, 2 tables, accepted for publication in The Astronomical Journal
Vila Flor no feminino - Histórias de mulheres  portuguesas do interior
Creators: name: Rita Madeira
name: Leonor Medon
Publisher: name: Revista Memória Rural
Year: 2023

description: Do coração da Terra Quente Transmontana surgem relatos de dificuldade e superação, de  desigualdade e privilégio, que mostram como as Mulheres de Vila Flor e as suas trajetórias são multidimensionais e diversas. São histórias que (também) ilustram as tendências de um país desigual, com  um interior que tem vindo a ser abandonado e se encontra cada vez mais deserto, mas que, mesmo  assim, permanece um local de mulheres fortes, com histórias valiosas e memórias vivas
A Comprehensive Conceptual Framework for Assessing the Impact of Agricultural Research and Development
Creators: name: Marasas, C. N.
name: Anandajayasekeram, P.
name: Van Rooyen, C. J.
name: Wessels, J.
name: Marasas, C. N.
name: Anandajayasekeram, P.
name: Van Rooyen, C. J.
name: Wessels, J.
Publisher: name: Unknown
Year: 2001
Subjects: Community/Rural/Urban Development
Research and Development/Tech Change/Emerging Technologies

description: Information on the impact of publicly funded agricultural research is increasingly needed for the mobilization and allocation of decreasing resources. For these purposes, solid evidence of the social gains of past investments is needed, as well as appropriate criteria for planning and priority setting. Returns on investments in technology development and transfer have mostly been evaluated in economic terms, using the rate of return as a measure of efficiency. However, these means are not equally appropriate for the impact appraisal of all research and development programs. Some impacts are difficult to quantify or only materialize over a longer period of time. For this reason, projects should not be prioritized according to efficiency measures alone. Non­market costs and benefits should be evaluated on an equal footing to their market-based counterparts. This paper proposes a comprehensive conceptual framework for assessing the impact of agricultural research and development. It reviews the concepts and methodologies involved in these kinds of appraisals and refers to their application in empirical impact studies conducted in South Africa to date.
Transfer and complex oriented cohomology rings
Creators: name: Bakuradze, Malkhaz
name: Priddy, Stewart
Publisher: name: arXiv
Year: 2003
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 55N22; 55R12

description: For finite coverings we elucidate the interaction between transferred Chern classes and Chern classes of transferred bundles. This involves computing the ring structure for the complex oriented cohomology of various homotopy orbit spaces. In turn these results provide universal examples for computing the stable Euler classes (i.e. Tr^*(1)) and transferred Chern classes for p-fold covers. Applications to the classifying spaces of p-groups are given.
description: Published by Algebraic and Geometric Topology at http://www.maths.warwick.ac.uk/agt/AGTVol3/agt-3-15.abs.html
Challenging the Paradigm: How to Extend Conventional Agricultural Economic Analysis to Support Agribusiness in the New Global Economy
Creators: name: Doyer, O. T.
name: Van Rooyen, C. J.
name: Doyer, O. T.
name: Van Rooyen, C. J.
Publisher: name: Unknown
Year: 2001
Subjects: Agribusiness

description: Agribusinesses in the global agricultural and food system are experiencing formidable competitive pressures. Agricultural supply systems are exhibiting innovative production arrangements, contracts, and closer vertical marketing arrangements to increase efficiency and profitability through greater market co-ordination. The complexity of the emerging agricultural marketing structures necessitates an appropriate research paradigm to analyse and understand these changes. Constructivism is proposed as an applicable research paradigm and a potential research framework for the analysis of supply chains is discussed.
Additional file 1 of Microbiota characterization of Exaiptasia diaphana from the Great Barrier Reef
Creators: name: Hartman, Leon Michael
name: Oppen, Madeleine Josephine Henriette Van
name: Blackall, Linda Louise
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Ecology

description: Additional file 1: Figure S1. Anemones acquired from the AIMS SeaSim in late 2014. Figure S2. Anemones acquired from the AIMS SeaSim in early 2016. Figure S3.E. diaphana culture collection at the UoM.
TIA1 promotes ULK1 protein expression and autophagy during nutrient starvation
Creators: name: Metur, Shree Padma
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 310103
subject: Cell metabolism
classificationCode: 310108
subject: Protein trafficking

description: (A) Loss of TIA reduces ULK1 protein expression and autophagy: Calu-1 cells transfected with either siRNA (control) or siRNA specific to TIA1 were subjected to serum starvation for the indicated times with or without treatment with bafilomycin A1. Cells were harvested after the indicated times and protein levels of ULK1, TIA1 and LC3 were determined by immunoblotting. ACTB was used as a loading control. (B) Quantification of ULK1 protein levels in A. Data are representative of three independent biological replicates, showing mean +/- SD. **** p value <0.001. (C) TIA1 knockdown does not affect ULK1 transcription: Total RNA was extracted from cells harvested under the conditions indicated in a and ULK1 mRNA abundance was determined by qRT-PCR. GAPDH was used as a control. Data are representative of three independent biological replicates. (D) Quantification of LC3-II levels in a. Data are representative of three independent biological replicates, showing mean +/- SD. Two-way ANOVA was used to determine statistical significance. **** p value < 0.01, *** p value <0.05. (E) TIA1 binds to the 3' UTR of ULK1: RNA immunoprecipitation was performed using TIA1-specific antibody and the mRNA bound to the protein was quantified by qRT-PCR using two primers spanning different regions in the 5' UTR and 3' UTR. Data are representative of three independent biological replicates, showing mean +/- SD. One-way ANOVA was performed to determine statistical significance. ** p value = 0.0013, * p value = 0.0358.
A tradição da gancha de São Brás em Vila Real
Creators: name: Cláudia Guiomar Casaca Pires
Publisher: name: Revista Memória Rural
Year: 2023

description: Albert Einstein era da opinião de que “além das aptidões e das qualidades herdadas, é  a tradição que faz de nós aquilo que somos”. Concordamos e, por isso, fazemos neste artigo uma  aproximação à tradição da gancha de São Brás na cidade de Vila Real, que se repete ano após ano  no dia em que a Igreja celebra a memória de São Brás. Tendo assistido à festa que se realizou no ano  de 2023, a autora faz uma descrição sobre o que presenciou e tenta passar o significado do ritual que  por tradição se cumpre anualmente na sede do município de Vila Real. O objetivo deste trabalho é  aprofundar e promover o envolvimento com a história desta festa aberta ao público que herdou a sua  periodicidade por via do calendário religioso e a importância dela para a cultura popular da região.
Bloch electrons on honeycomb lattice and toric Calabi-Yau geometry
Creators: name: Hatsuda, Yasuyuki
name: Sugimoto, Yuji
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We find a new relation between the spectral problem for Bloch electrons on a two-dimensional honeycomb lattice in a uniform magnetic field and that for quantum geometry of a toric Calabi-Yau threefold. We show that a difference equation for the Bloch electron is identical to a quantum mirror curve of the Calabi-Yau threefold. As an application, we show that bandwidths of the electron spectra in the weak magnetic flux regime are systematically calculated by the topological string free energies at conifold singular points in the Nekrasov-Shatashvili limit.
description: 18 pages, 2 figures; v2 : Asymmetric hopping case added, some typos fixed, reference and clarifications added, published in JHEP
Total and partial amplitude death in networks of diffusively coupled oscillators
Creators: name: Atay, Fatihcan M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Networks of weakly nonlinear oscillators are considered with diffusive and time-delayed coupling. Averaging theory is used to determine parameter ranges for which the network experiences amplitude death, whereby oscillations are quenched and the equilibrium solution has a large domain of attraction. The amplitude death is shown to be a common phenomenon, which can be observed regardless of the precise nature of the nonlinearities and under very general coupling conditions. In addition, when the network consists of dissimilar oscillators, there exist parameter values for which only parts of the network are suppressed. Sufficient conditions are derived for total and partial amplitude death in arbitrary network topologies with general nonlinearities, coupling coefficients, and connection delays.
description: 21 pages, 4 figures
AN INVESTIGATION INTO SOLAR ENERGY FOR SUB
Creators: name: Siamaki, Taraneh
name: Yu, Meng
name: D'Souza, Hadrian
Publisher: name: The University of British Columbia
Year: 2010

description: Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
First-Order Economizing: Irrigation Technology Adoption and the Farm
Creators: name: Wilson, P. N.
name: Wilson, P. N.
Publisher: name: Unknown
Year: 2001
Subjects: Farm Management
Research and Development/Tech Change/Emerging Technologies

description: Expected future water shortages and emerging environmental concerns place micro­irrigation near the forefront of technological alternatives for the agricultural sector. Drip irrigation-under favorable soil, biological, climatic, organizational, and economic conditions -is economically preferred to traditional flood, furrow, and even sprinkler technologies. However, superior management is required to produce the incremental yield increases necessary for acceptable returns on this investment. Other incremental benefits from adopting drip technology are realized through complementarities between the technology, other inputs, and the firm's marketing strategy.
The Influence of Demand and Supply Shift Factors on the South African Red Meat Industry
Creators: name: Jooste, A.
name: Van Schalkwyk, H. D.
name: Jooste, A.
name: Van Schalkwyk, H. D.
Publisher: name: Unknown
Year: 2001
Subjects: Demand and Price Analysis
Livestock Production/Industries

description: In changes this in paper a population spatial from partial a "with" equilibrium and "without" (SPE) model HIV/AIDS is used point to of view, determine as well the as impact changes of in In a per capita "Without income. HIV/AIDS" The possible population impact of growth abolishing scenario the Lome demand for Convention beef, is sheep also meat and investigated.pork will HIV/AIDS" increase by population 12.01 per growth cent, 12.22 scenario per demand cent, and will 11.92 only per increase cent, by 7.19 respectively. per cent, In a 7.31 "Withper is cent met and by 7.28 overseas per cent imports. for beef, When sheep per meat capita and income pork, increases respectively. the Most increase of the in pork increase in consumption demand is the lower fact that than the the aggregated increases in income demand elasticity for beef is and considerably sheep meat. lower This for can pork be than it attributed is for the mainly other to two impact red on meats. the general The welfare welfare of analysis the country, shows, and firstly secondly that the HIV/AIDS important will role have a government considerable has to per play Convention capita in setting will income not the of have table people. for any severe improved Finally, the repercussions economic study for shows conditions the that beef that the will sub-sector result abolishment in in South of increases the Africa.
Photon Self-energy in Magnetized Chiral Plasma from Kinetic Theory
Creators: name: Gao, Han
name: Mo, Zonglin
name: Lin, Shu
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the photon self-energy in magnetized chiral plasma by solving the response of electromagnetic field perturbations in chiral kinetic theory with Landau level states. With lowest Landau level approximation and in collisionless limit, we find solutions for three particular perturbations: parallel electric field, static perpendicular electric and magnetic field, corresponding to chiral magnetic wave, drift state and tilted state, from which we extract components of photon self-energy in different kinematics. We show no solution is possible for more general field perturbations. We argue this is an artifact of the collisionless limit: while static solution corresponding to drift state and tilted state can be found, they cannot be realized dynamically without interaction between Landau levels. We also discuss possible manifestation of side-jump effect due to both boost and rotation, with the latter due to the presence of background magnetic field.
description: 20 pages
Patterns of Relationships Between Farm and Nonfarm Sources of Income in the Rural Areas of the Northern Province
Creators: name: Makhura, M.
name: Makhura, M.
Publisher: name: Unknown
Year: 2001
Subjects: Agricultural Finance
Financial Economics

description: The objective of this paper is to identify patterns of relationships among farm and nonfarm income activities. Factor analysis (FA) (model) is applied on eleven income generating activities in the rural areas of the Northern Province. The principal component extraction method was used to extract five factors which reflected three patterns of farm-nonfarm relationships. The first pattern showed a complete inclination to farming activities. The two factors in this pattern involved traditional farming activities (maize and livestock sales) and diversified arable activities (sales of vegetables and other field crops). The second pattern reflected linkages to achieve the income objective (salaries and fruit sales) as well as food security (income from pensions and exchange for finished product). The last pattern pertained to nonfarm options; either business and services or wages. Programmes for rural development should aim to enhance the contribution of both agricultural and non­agricultural sectors to poverty alleviation by strengthening linkages between the sectors .
The Effects of the Sagittarius Dwarf Tidal Stream on Dark Matter Detectors
Creators: name: Freese, Katherine
name: Gondolo, Paolo
name: Newberg, Heidi Jo
name: Lewis, Matthew
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Sagittarius dwarf tidal stream may be showering dark matter onto the solar neighborhood, which can change the results and interpretation of WIMP direct detection experiments. Stars in the stream may already have been detected in the solar neighborhood, and the dark matter in the stream is (0.3-25)% of the local density. Experiments should see an annually modulated steplike feature in the energy recoil spectrum that would be a smoking gun for WIMP detection. The total count rate in detectors is not a cosine curve in time and peaks at a different time of year than the standard case.
description: 5 pages, 2 figures. Replaced with version to appear in Physical Review Letters
Additional file 4 of Effectiveness of TOcilizumab in comparison to Prednisone In Rheumatoid Arthritis patients with insufficient response to disease-modifying antirheumatic drugs (TOPIRA): study protocol for a pragmatic trial
Creators: name: Leeuw, Matthijs S. Van Der
name: Welsing, Paco M. J.
name: Hair, Maria J. H. De
name: Jacobs, Johannes W. G.
name: Marijnissen, Anne C. A.
name: Linn-Rasker, Suzanne P.
name: Faouzia Fodili
name: Bos, Reinhard
name: Tekstra, Janneke
name: Laar, Jacob M. Van
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 4. EULAR and ACR response criteria.
Is Agricultural Sector Growth a Precondition for Economic Growth? The Case of South Africa
Creators: name: Poonyth, D.
name: Hassan, R.
name: Kirsten, J. F.
name: Calcaterra, M.
name: Poonyth, D.
name: Hassan, R.
name: Kirsten, J. F.
name: Calcaterra, M.
Publisher: name: Unknown
Year: 2001
Subjects: Agribusiness

description: In this paper a simple growth model is adapted to explain the effect of the agricultural sectors' growth on the non-agricultural sector. The empirical results suggest that for a 1 % growth in the agricultural sector, the non-agricultural sector responds by more than 1 % . The results also confirm that productivity difference exists, the non-agricultural sector being more efficient in terms of input use. The empirical results supports the argument of President T. Mbeki, that South Africa should follow an "agricultural-led" growth strategy for successful development.