cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
GaitGraph: Graph Convolutional Network for Skeleton-Based Gait Recognition
Creators: name: Teepe, Torben
name: Khan, Ali
name: Gilg, Johannes
name: Herzog, Fabian
name: Hörmann, Stefan
name: Rigoll, Gerhard
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Gait recognition is a promising video-based biometric for identifying individual walking patterns from a long distance. At present, most gait recognition methods use silhouette images to represent a person in each frame. However, silhouette images can lose fine-grained spatial information, and most papers do not regard how to obtain these silhouettes in complex scenes. Furthermore, silhouette images contain not only gait features but also other visual clues that can be recognized. Hence these approaches can not be considered as strict gait recognition. We leverage recent advances in human pose estimation to estimate robust skeleton poses directly from RGB images to bring back model-based gait recognition with a cleaner representation of gait. Thus, we propose GaitGraph that combines skeleton poses with Graph Convolutional Network (GCN) to obtain a modern model-based approach for gait recognition. The main advantages are a cleaner, more elegant extraction of the gait features and the ability to incorporate powerful spatio-temporal modeling using GCN. Experiments on the popular CASIA-B gait dataset show that our method archives state-of-the-art performance in model-based gait recognition. The code and models are publicly available.
description: 5 pages, 2 figures
Numerical simulation of falling film dehumidification with rectangular cylinder insertion modification at different elevations
Creators: name: Yohana, Eflita
name: Tauviqirrahman, Mohammad
name: Afinadi, Achmad
name: Dwinanda, Mohammad Farkhan Hekmatyar
name: Yulianto, Mohammad Endy
name: Bahar, Shofwan
name: Choi, Kwang-Hwan
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biophysics
subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Information Systems not elsewhere classified
subject: Mathematical Sciences not elsewhere classified

description: A falling film dehumidifier is one type of desiccant-based dehumidifier with superior performance and has a simple design and working mechanism. Geometric modifications of falling film dehumidifiers can impact their fluid flow and effectiveness. For further investigations, a CFD (Computational Fluid Dynamics) numerical simulation was carried out on the dehumidifier geometric innovation equipped with a rectangular cylinder with variations in different height positions. Falling film dehumidifier with four variations of rectangular cylinder height positions (3/12 h, 5/12 h, 7/12 h, and 9/12 h) was analyzed to determine its impact on dehumidification performance for each incoming airflow of 0.5 m/s, 1 m/s, and 1.5 m/s. Based on the results, it was evident that adding a rectangular cylinder to the humid air passage can change the flow characteristics, enhance the distribution rate of mass and air temperature, and ultimately enhance the dehumidification performance. The decrease in humidity and temperature increased by 11–14% and 11–27%, respectively, for the air velocity range of 0.5–1.5 m/s. In addition, the dehumidification performance was obtained to increase by 11–14% at the same air velocity range. Variations in the position of a rectangular cylinder show different results, where the lowest position delivers the best dehumidification performance.
Tuneable Correlated Disorder in Alloys
Creators: name: Chaney, D.
name: Castellano, A.
name: Bosak, A.
name: Bouchet, J.
name: Bottin, F.
name: Dorado, B.
name: Paolasini, L.
name: Rennie, S.
name: Bell, C.
name: Springell, R.
name: Lander, G. H.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Understanding the role of disorder and the correlations that exist within it, is one of the defining challenges in contemporary materials science. However, there are few material systems, devoid of other complex interactions, which can be used to systematically study the effects of crystallographic conflict on correlated disorder. Here, we report extensive diffuse x-ray scattering studies on the epitaxially stabilised alloy $\mbox{U}_{1-x}\mbox{Mo}_x$, showing that a new form of intrinsically tuneable correlated disorder arises from a mismatch between the preferred symmetry of a crystallographic basis and the lattice upon which it is arranged. Furthermore, combining grazing incidence inelastic x-ray scattering and state-of-the-art ab initio molecular dynamics simulations we discover strong disorder-phonon coupling. This breaks global symmetry and dramatically suppresses phonon-lifetimes compared to alloying alone, providing an additional design strategy for phonon engineering. These findings have implications wherever crystallographic conflict can be accommodated and may be exploited in the development of future functional materials.
description: V3: Some supplementary content moved into main text and manuscript structure reformatted to accommodate. No substantive change to transferred material but linking statements added. Section III discussion expanded by one paragraph. No change to results, figures, or conclusions in either the main manuscript or supplementary material. Main text: 10 pg, 7 figs. SM: 14 pg, 5 figs, 1 table
Effects of Load Distributions and Axle and Tire Configurations on Pavement Fatigue
Creators: name: Southgate, Herbert F.
name: Deen, Robert C.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1985
Subjects: subject: Transportation Engineering

description: Damage factor relationships for axle and tire configurations are presented. Adjustment factors are provided to account for variations in load distributions within axle groups, distances between axles of a tandem, and variations in tire pressure for both dual and flotation tire configurations.  Properly accounting for accumulated fatigue of a pavement requires an accurate Measure of traffic volume, proportions of vehicle styles (classifications) within the traffic stream, dates of service, estimate of the average damage factor for each classification, and estimate of the tire contact pressure. Weigh-in-motion equipment in its current form provides all of the above ingredients except for the tire contact pressure. A survey of tire pressures may be made and an average calculated to obtain a rough estimate of the effects of loads concentrated on a smaller area than assumed in the past. Such data described above may be used to determine trends in the use of vehicle styles as well as changes in truck volumes and load distributions.  Adjusting for actual conditions of usage may indicate a pavement design thought to last 20 years may last only 14 to 16 years. Such findings affect both new pavement designs and rehabilitation strategies with accompanying effects upon fiscal plans and policies. Adjusted design EALs might require a different pavement template for new designs and a resulting change in costs. Likewise, rehabilitation strategies may change, for example, from a simple overlay to milling and overlay or to complete rehabilitation because of overhead clearance problems, involving additional costs for shoulder paving and replacement or resetting of guard rails, etc. Therefore, estimating EAL requirements may be far more significant and important than previously recognized. Efforts should include the best method to determine the most accurate fatigue history possible.  All adjustment factors presented are based on the analyses of a limited number of structures and should be used with caution. The accuracy of these analyses are not in question, but the range of structures investigated was limited. They are intended to indicate the trend, shape, and sensitivity of various inter-relationships and their relative magnitudes. Modifications may have to be made upon the analyses of additional pavement structures. Kentucky traffic may differ from that in other areas in the United States, both in types of vehicles in the traffic stream and the type and direction cargo is being transported.
Dynamic Alignment and Exact Scaling Laws in MHD Turbulence
Creators: name: Boldyrev, Stanislav
name: Mason, Joanne
name: Cattaneo, Fausto
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Magnetohydrodynamic (MHD) turbulence is pervasive in astrophysical systems. Recent high-resolution numerical simulations suggest that the energy spectrum of strong incompressible MHD turbulence is $E(k_{\perp})\propto k_{\perp}^{-3/2}$. So far, there has been no phenomenological theory that simultaneously explains this spectrum and satisfies the exact analytic relations for MHD turbulence due to Politano & Pouquet. Indeed, the Politano-Pouquet relations are often invoked to suggest that the spectrum of MHD turbulence instead has the Kolmogorov scaling -5/3. Using geometrical arguments and numerical tests, here we analyze this seeming contradiction and demonstrate that the -3/2 scaling and the Politano-Pouquet relations are reconciled by the phenomenon of scale-dependent dynamic alignment that was recently discovered in MHD turbulence.
description: Published version
title: Suggested Changes to Kentucky Statutes
title: (Vehicle Weights and Dimensions)
titleType: Subtitle
Creators: name: Southgate, Herbert F.
name: Deen, Robert C.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1985
Subjects: subject: Transportation Engineering

description: The purposes of this report are: 1. To clearly define the terms ''tandem," "tridem," and “triaxle." 2. To clearly define the term "600 pounds per inch width of tire" as the "width of the tread in contact with the pavement." 3. To make the axle load limits the same throughout the statutes. 4. To suggest elimination of indentified discriminatory legislation. 5. To recommend additional legislation: a. to clearly define the purpose and use of "air-bag" suspension systems -- those that can be raised or lowered by the driver, and b. to enable vehicle weight enforcement officers to use shipping documents as evidence to issue overweight citations without having to weigh the trucks. These documents may be in the possession of the driver, or in the files of the shipping and/ or receiving firms.
Coherent Manipulation of the Internal State of Ultracold $^{87}$Rb$^{133}$Cs Molecules with Multiple Microwave Fields
Creators: name: Blackmore, Jacob A.
name: Gregory, Philip D.
name: Bromley, Sarah L.
name: Cornish, Simon L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We explore coherent multi-photon processes in $^{87}$Rb$^{133}$Cs molecules using 3-level lambda and ladder configurations of rotational and hyperfine states, and discuss their relevance to future applications in quantum computation and quantum simulation. In the lambda configuration, we demonstrate the driving of population between two hyperfine levels of the rotational ground state via a two-photon Raman transition. Such pairs of states may be used in the future as a quantum memory, and we measure a Ramsey coherence time for a superposition of these states of 58(9) ms. In the ladder configuration, we show that we can generate and coherently populate microwave dressed states via the observation of an Autler-Townes doublet. We demonstrate that we can control the strength of this dressing by varying the intensity of the microwave coupling field. Finally, we perform spectroscopy of the rotational states of $^{87}$Rb$^{133}$Cs up to $N=6$, highlighting the potential of ultracold molecules for quantum simulation in synthetic dimensions. By fitting the measured transition frequencies we determine a new value of the centrifugal distortion coefficient $D_v=h\times207.3(2)~$Hz.
Antifascist memory revisited: Hungarian historical exhibitions in Oświęcim and Paris, 1965
Creators: name: Kékesi, Zoltán
name: Zombory, Máté
Publisher: name: Technische Universität Berlin
Year: 2022
Subjects: subject: 900 Geschichte und Geografie
subject: 1960s
subject: Auschwitz
subject: Cold War
subject: cultural history
subject: cultural memory
subject: Holocaust
subject: postwar Europe
subject: Shoah Memorial
subject: transnationalism

description: This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
description: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
description: The article challenges the widely shared thesis in memory studies that the antifascist memory of the Second World War suppressed the Holocaust. Instead of exploring exceptions to this rule by looking for single cases of antifascist memory that represent some aspects of the Holocaust, we argue that antifascist memory presented a distinct cultural regime for remembering the past. Our claim is that antifascist memory, understood as a particular historical phenomenon on a transnational scale, opened up specific ways to commemorate the Jewish genocide. Our article relies on two pillars: first, on recent memory studies scholarship that challenged “the myth of silence” in relation to the postwar decades; second, on recent studies revisiting antifascism itself, demonstrating its transnational and ideologically diverse nature. We argue that a contested but at least until the 1970s still commonly held pan-European antifascist legacy fostered not only intra-Eastern bloc but also cross–Cold War mnemonic cooperation. We present an empirical comparative study that discusses the 1965 Hungarian exhibition at the State Museum Auschwitz-Birkenau and the Hungarian section at the permanent exhibition at the Museum of the Memorial of the Unknown Jewish Martyr in Paris that opened in the same year. Based on archival documents in Budapest, Auschwitz-Birkenau, and Paris, we prove that both exhibitions displayed a coherent, historically accurate, and comprehensive account of the genocide that articulated unambiguously the Jewish identity of those perished and persecuted. At the same time, they both operated under discursive conditions informed by antifascist legacies in Poland, Hungary, and France.
Horava-Witten Stability: eppur si muove
Creators: name: Chen, W.
name: Chong, Z. -W.
name: Gibbons, G. W.
name: Lu, H.
name: Pope, C. N.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We construct exact time-dependent solutions of the supergravity equations of motion in which two initially non-singular branes, one with positive and the other with negative tension, move together and annihilate each other in an all-enveloping spacetime singularity. Among our solutions are the Horava-Witten solution of heterotic M-theory and a Randall-Sundrum I type solution, both of which are supersymmetric, i.e. BPS, in the time-independent case. In the absence of branes our solutions are of Kasner type, and the source of instability may ascribed to a failure to stabilise some of the modulus fields of the compactification. It also raises questions about the viability of models based on some sorts of negative tension brane.
description: Latex, 22 pages, extended discussion of the global spacetime structure, and reference added
title: Jefferson Freeway Investigation
title: (Westbound Lanes)
titleType: Subtitle
Creators: name: Southgate, Herbert F.
name: Sharpe, Gary W.
name: Hopwood, Theodore
name: Havens, James H.
name: Anderson, Mark
name: Hunsucker, David Q.
name: Deen, Robert C.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1985
Subjects: subject: Transportation Engineering

description: The Kentucky Transportation Research Program (KTRP) was retained to perform an investigation for the Kentucky Department of Highways to assess damage that may be attributed to passage of the Model 992C over portions of the Jefferson Freeway. KTRP investigators conducted visual surveys, performed Road Rater deflection tests, did in-place California Bearing Ratio (CBR) testing on subgrade materials, obtained pavement cores, and conducted laboratory tests and analyses.  It appeared the pavement was damaged by the front-end loader. No evidence of damage to the bridges attributable to the front-end loader was detected. Damage to the pavement attributable to passage of the front-end loader was assessed in the amount of $322,074.50.
Circularization of tidal debris around white dwarfs: implications for gas production and dust variability
Creators: name: Malamud, Uri
name: Grishin, Evgeni
name: Brouwers, Marc
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: White dwarf (WD) pollution is thought to arise from the tidal disruption of planetary bodies. The initial fragment stream is extremely eccentric, while observational evidence suggest that discs are circular or nearly so. Here we propose a novel mechanism to bridge this gap and show that the fragments can rapidly circularise through dust or gas drag when they interact with a pre-existing compact disc. We assume that the tidal stream mainly consists of small cohesive fragments in the size range 10-1000 m, capable of resisting the WD tidal forces, whereas the compact discs span a wide mass range. We provide an analytical model, accompanied by N-body simulations, and find a large parameter space in fragment sizes and orbital separation that leads to full circularization. Partial circularization is possible for compact discs that are several orders of magnitudes less massive. We show that dust-induced circularization inherently produces gas as tidal fragments collisionally vaporize the pre-existing dust along their path. We show that ongoing gas production has a higher probability to occur during the early stages of tidal disruption events, resulting from the fact that smaller fragments are the first to circularize. Intermittent gas production however becomes more likely as the tidal stream matures. This could explain why only a small subset of systems with dusty compact discs also have an observed gaseous component. Additionally, the interaction yields fragment erosion by collisional shattering, sputtering, sublimation and possibly ram-pressure. Material scattered by the collisions might form a thin dusty halo that evolves through PR drag, in compatibility with observed infrared variability.
Trend for Soil CO2 Efflux in Grassland and Forest Land in Relation with Meteorological Conditions and Root Parameters
Creators: name: Kochiieru, Mykola
name: Feiza, Virginijus
name: Feiziene, Dalia
name: Versuliene, Agne
Publisher: name: Zenodo
Year: 2023
Subjects: Retisol
CO2 e-flux
root volume
soil temperature
volumetric water content

description: The key process in understanding carbon dynamics under different ecosystems is quantifying soil CO2 efflux. However, this process can change annually as it depends on environmental variables. The results of this paper present the effects of root network, soil temperature, and volumetric water content on soil CO2 efflux, which were investigated on Retisol of two types of land uses in Western Lithuania in 2017–2019: forest and grassland. It was determined that the average soil CO2 efflux in the grassland was 32% higher than in the forest land. The CO2 efflux, average across land uses, tended to increase in the following order: 2017 < 2018 < 2019. Dry weather conditions with high temperatures during the vegetation period governed the soil CO2 efflux increase by 14%. Soil temperature (up to 20 °C) and volumetric water content (up to 23–25%) had a positive effect on the soil CO2 efflux increase on Retisol. We established that the root’s activity plays one of the main roles in the CO2 production rate—in both land uses, the soil CO2 efflux was influenced by the root length density and the root volume.

Notes

This research was partly developed in the framework of the European Joint Program for SOIL “Towards climate smart sustainable management of agricultural soils” (EJP SOIL) funded by the European Union Horizon 2020 research and innovation programme (Grant Agreement N 862695).

This work was partly supported by the research program “Productivity and sustainability of agricultural and forest soils” implemented by the Lithuanian Research Center for Agriculture and Forestry.
Dynamics of Macroscopic Wave Packet Passing through Double Slits: Role of Gravity and Nonlinearity
Creators: name: Nakamura, Katsuhiro
name: Nakazono, Naofumi
name: Ando, Taro
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Using the nonlinear Schroedinger equation (Gross-Pitaevskii equation), the dynamics of a macroscopic wave packet for Bose-Einstein condensates falling through double slits is analyzed. This problem is identified with a search for the fate of a soliton showing a head-on collision with a hard-walled obstacle of finite size. We explore the splitting of the wave packet and its reorganization to form an interference pattern. Particular attention is paid to the role of gravity (g) and repulsive nonlinearity (u_0) in the fringe pattern. The peak-to-peak distance in the fringe pattern and the number of interference peaks are found to be proportional to g^(-1/2) and u_0^(1/2)g^(1/4), respectively. We suggest a way of designing an experiment under controlled gravity and nonlinearity.
description: 10 pages, 4 figures and 1 table
Observing the host galaxies of high-redshift quasars with JWST: predictions from the BlueTides simulation
Creators: name: Marshall, Madeline A.
name: Wyithe, J. Stuart B.
name: Windhorst, Rogier A.
name: Di Matteo, Tiziana
name: Ni, Yueying
name: Wilkins, Stephen
name: Croft, Rupert A. C.
name: Mechtley, Mira
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The bright emission from high-redshift quasars completely conceals their host galaxies in the rest-frame ultraviolet/optical, with detection of the hosts in these wavelengths eluding even the Hubble Space Telescope (HST) using detailed point spread function (PSF) modelling techniques. In this study we produce mock images of a sample of z=7 quasars extracted from the BlueTides simulation, and apply Markov Chain Monte Carlo-based PSF modelling to determine the detectability of their host galaxies with the James Webb Space Telescope (JWST). While no statistically significant detections are made with HST, we predict that at the same wavelengths and exposure times JWST NIRCam imaging will detect ~50% of quasar host galaxies. We investigate various observational strategies, and find that NIRCam wide-band imaging in the long-wavelength filters results in the highest fraction of successful quasar host detections, detecting >80% of the hosts of bright quasars in exposure times of 5 ks. Exposure times of ~5 ks are required to detect the majority of host galaxies in the NIRCam wide-band filters, however even 10 ks exposures with MIRI result in <30% successful host detections. We find no significant trends between galaxy properties and their detectability. The PSF modelling can accurately recover the host magnitudes, radii, and spatial distribution of the larger-scale emission, when accounting for the central core being contaminated by residual quasar flux. Care should be made when interpreting the host properties measured using PSF modelling.
description: 21 pages, 14 figures. Resubmitted to MNRAS following referee feedback, with most notable improvements in Section 5
Search for Lepton Flavor Violating tau- Decays Including with a K0s Meson
Creators: name: Miyazaki, Y.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We have searched for the lepton flavor violating decays $τ^-\to \ell^-\ks$ ($\ell = e {or} μ$), using a data sample of 281 fb$^{-1}$ collected with the Belle detector at the KEKB $e^+e^-$ asymmetric-energy collider. No evidence for a signal was found in either of the decay modes, and we set the following upper limits for the branching fractions: ${\cal{B}}(τ^-\to e^-\ks) < 5.6\times 10^{-8}$ and ${\cal{B}}(τ^-\to μ^-\ks) < 4.9\times 10^{-8}$ at the 90% confidence level. These results improve the previously published limits set by the CLEO collaboration by factors of 16 and 19, respectively.
description: 9 pages, 3figures, submitted to Phys.Lett. B
Studies on the catalytic acid/base residues of glutamate racemase
Creators: name: Glavas, Suzana
Publisher: name: University of British Columbia
Year: 2009

description: Glutamate racemase from Lactobacillus fermenti (murl, E.C. 5.1.1.3) is a cofactorindependent enzyme which catalyzes the interconversion of the enantiomers of glutamate using Cys73 and Cysl84 as the general acid/base catalysts. A cysteine thiolate abstracts the α-proton from one face of glutamate and the other cysteine thiol delivers a proton to the opposite face. The roles of the cysteine residues are explored using the two glutamate racemase mutant enzymes, C73S and C184S. The mutants retain the ability to racemize glutamate with specificity constants ~10³-fold lower than those of wild type enzyme. The mutant-catalyzed dehydration reaction of iV-hydroxyglutamate, a one-base requiring reaction, is used to determine which cysteine residue acts on each enantiomer of glutamate. With [sub D]-N-hydroxyglutamate, the C73S mutant is a poorer catalyst than the wild type enzyme, whereas theC184S mutant is a better catalyst. The opposite trend is observed with L-A^-hydroxyglutamate. The results suggest Cys73 is the residue responsible for the deprotonation of D-glutamate and Cysl84 is responsible for the deprotonation of L-glutamate. Furthermore, the V[sub max]/K[sub m] isotope effect for the C73S mutant in the D —> L reaction direction is larger than that observed for wild type enzyme and smaller in the L —> D reaction direction. The opposite trend is observed for the C184S mutant. Presumably, an asymmetry in the reaction profile is induced by the mutation making the deprotonation step involving the serine residue more cleanly rate determining. This result supports the assigned roles for each of the cysteine residues of glutamate racemase. Further experiments explore the importance of the four strictly conserved residues, AsplO, Asp36, Glul52 and Hisl86, by preparing appropriate mutant enzymes. The effect of each of the D36N and E152Q mutations is to reduce k[sub cat] by a modest factor of ~2- to 3-fold and suggests these residues are not important to catalysis. They do appear to be involved in binding since there is an increase in the K[sub m] value for each of these mutants. The k[sub cat] values for the D10N and H186N mutants, however, are decreased by three orders of magnitude relative to wild type enzyme implying an important catalytic role for these residues. The V[sub max] isotope effects for D10N and H186N are affected in each reaction direction with the ratio between the isotope effects increased to 2.20 ± 0.18 for D10N relative to the wild type ratio of 1.40 ± 0.34, and decreased to 0.70 ± 0.05 for H186N. A possible role for AsplO and Hisl86 is to stabilize the thiolate form of Cys73 and Cysl84, respectively.
MPEC 2024-A75 : 2024 AN1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 AN1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Food Balances for 24 Countries of the Western Hemisphere, 1959-61
Creators: name: Naive, James J.
name: Perley, Rena E.
name: Bennett, Gae A.
name: Naive, James J.
name: Perley, Rena E.
name: Bennett, Gae A.
Publisher: name: Unknown
Year: 1964
Subjects: Food Consumption/Nutrition/Food Safety

description: Excerpt from the report Summary: Average daily per capita food consumption in the Western Hemisphere during 1959-61, based on food supplies available at retail, is estimated at 2,870 calories, 80.4 grams of protein and 102.1 grams of fat (table 1). Because of stable consumption in the United States and Canada, these levels changed very little from the 1956-58 average. In Latin America, daily per capita calorie consumption increased slightly from 2,520 in 1956-58 to 2,570 in 1959-61. There was little change in protein and fat consumption, estimated at 66.1 grams and 60.3 grams, respectively, in 1959-61. There were significant gains in calorie levels in Bolivia, Brazil, Honduras, Mexico, Peru, Venezuela, Jamaica, and Trinidad and Tobago.
Generalised superconformal higher-spin multiplets
Creators: name: Kuzenko, Sergei M.
name: Ponds, Michael
name: Raptakis, Emmanouil S. N.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose generalised $\mathcal{N}=1$ superconformal higher-spin (SCHS) gauge multiplets of depth $t$, $Υ_{α(n)\dotα(m)}^{(t)}$, with $n\geq m \geq 1$. At the component level, for $t>2$ they contain generalised conformal higher-spin (CHS) gauge fields with depths $t-1$, $t$ and $t+1$. The supermultiplets with $t=1$ and $t=2$ include both ordinary and generalised CHS gauge fields. Super-Weyl and gauge invariant actions describing the dynamics of $Υ_{α(n)\dotα(m)}^{(t)}$ on conformally-flat superspace backgrounds are then derived. For the case $n=m=t=1$, corresponding to the maximal-depth conformal graviton supermultiplet, we extend this action to Bach-flat backgrounds. Models for superconformal non-gauge multiplets, which are expected to play an important role in the Bach-flat completions of the models for $Υ^{(t)}_{α(n)\dotα(m)}$, are also provided. Finally we show that, on Bach-flat backgrounds, requiring gauge and Weyl invariance does not always determine a model for a CHS field uniquely.
description: 26 pages; v2: comment and reference added, typo corrected
Smart Focal Plane Technologies for VLT Instruments
Creators: name: Cunningham, Colin
name: Evans, Chris
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: As we move towards the era of ELTs, it is timely to think about the future role of the 8-m class telescopes. Under the OPTICON programme, novel technologies have been developed that are intended for use in multi-object and integral-field spectrographs. To date, these have been targeted at instrument concepts for the European ELT, but there are also significant possibilities for their inclusion in new VLT instruments, ensuring the continued success and productivity of these unique telescopes.
description: 5 pages, to appear in the proceedings of the ESO Workshop "Science with the VLT in the ELT era"
Evidence of topological nodal lines and surface states in the centrosymmetric superconductor SnTaS2
Creators: name: Chen, Wenqing
name: Liu, Lulu
name: Yang, Wentao
name: Chen, Dong
name: Liu, Zhengtai
name: Huang, Yaobo
name: Zhang, Tong
name: Zhang, Haijun
name: Liu, Zhonghao
name: Shen, D. W.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The discovery of signatures of topological superconductivity in superconducting bulk materials with topological surface states has attracted intensive research interests recently. Utilizing angle-resolved photoemission spectroscopy and first-principles calculations, here, we demonstrate the existence of topological nodal-line states and drumheadlike surface states in centrosymmetric superconductor SnTaS2, which is a type-II superconductor with a critical transition temperature of about 3 K. The valence bands from Ta 5d orbitals and the conduction bands from Sn 5p orbitals cross each other, forming two nodal lines in the vicinity of the Fermi energy without the inclusion of spin-orbit coupling (SOC), protected by the spatial-inversion symmetry and time-reversal symmetry. The nodal lines are gapped out by SOC. The drumheadlike surface states, the typical characteristics in nodal-line semimetals, are quite visible near the Fermi level. Our findings indicate that SnTaS2 offers a promising platform for exploring the exotic properties of the topological nodal-line fermions and gives a help to study topological superconductivity.
description: to appear in Physical Review B
Voltage-tunable ferromagnetism in semimagnetic quantum dots with few particles: magnetic polarons and electrical capacitance
Creators: name: Govorov, Alexander O.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Magnetic semiconductor quantum dots with a few carriers represent an interesting model system where ferromagnetic interactions can be tuned by voltage. By designing the geometry of a doped quantum dot, one can tailor the anisotropic quantum states of magnetic polarons. The strong anisotropy of magnetic polaron states in disk-like quantum dots with holes comes from the spin splitting in the valence band. The binding energy and spontaneous magnetization of quantum dots oscillate with the number of particles and reflect the shell structure. Due to the Coulomb interaction, the maximum binding energy and spin polarization of magnetic polarons occur in the regime of Hund's rule when the total spin of holes in a quantum dot is maximum. With increasing number of particles in a quantum dot and for certain orbital configurations, the ferromagnetic state becomes especially stable or may have broken symmetry. In quantum dots with a strong ferromagnetic interaction, the ground state can undergo a transition from a magnetic to a nonmagnetic state with increasing temperature or decreasing exchange interaction. The characteristic temperature and fluctuations of magnetic polarons depend on the binding energy and degeneracy of the shell. The capacitance spectra of magnetic quantum dots with few particles reveal the formation of polaron states.
description: 27 pages, 12 figures; Phys. Rev. B, accepted
Memory and the Digital Archive of Contemporary Art
Creators: name: López Iniesta, Juan Alonso
Publisher: name: International Journal for Digital Art History
Year: 2021

description: This article outlines some reflections about digital reality, contemporary art production, and possible ways of archiving and constructing memory through and for a historiography of contemporary art in light of the project Archivo Español de Media Art / Spanish Archive of Media Art (AEMA/SAOMA). In the first part I propose a definition and an account of media art and its artifacts. In the second part I present and describe the SAOMA project, and its antecedent, the MIDECIANT museum project, and discuss the conceptual and technical requirements of an archive devoted to the media arts. In the third part I sketch some interconnections between the concepts of memory and archive with reference to new media art and outline the difficulties that are inherent to any effort to define and archive these art forms. The final section includes some concluding thoughts and a brief explanation of what I regard as the most urgent needs for any archival project in the realm of digital art (digital restoration, documentation, and narrative).
description: International Journal for Digital Art History, No. 7 (2021): Zonas de Contacto: Art History in a Global Network?
title: Topology optimization considering self-weight
Creators: name: Masarczyk, Daniela
name: Kuhl, Detlef
Publisher: name: Universität Kassel
Year: 2023
Subjects: subject: 620
subject: 600
subject: Topologieoptimierung
subject: Strukturoptimierung
subject: Eigengewicht
subject: Belastung
subject: Steifigkeit

description: Gefördert im Rahmen des Projekts DEAL
Nature's Greatest Puzzles
Creators: name: Quigg, Chris
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Opening lecture at the 2004 SLAC Summer Institute.
description: 17 pages, no figures, uses slac_one (included)
Cosmological $α'$-corrections from the functional renormalization group
Creators: name: Basile, Ivano
name: Platania, Alessia
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We employ the techniques of the Functional Renormalization Group in string theory, in order to derive an effective mini-superspace action for cosmological backgrounds to all orders in the string scale $α'$. To this end, T-duality plays a crucial role, classifying all perturbative curvature corrections in terms of a single function of the Hubble parameter. The resulting renormalization group equations admit an exact, albeit non-analytic, solution in any spacetime dimension $D$, which is however incompatible with Einstein gravity at low energies. Within an $ε$-expansion about $D=2$, we also find an analytic solution which exhibits a non-Gaussian ultraviolet fixed point with positive Newton coupling, as well as an acceptable low-energy limit. Yet, within polynomial truncations of the full theory space, we find no evidence for an analog of this solution in $D=4$. Finally, we comment on potential cosmological implications of our findings.
description: 31 pages, 9 figures. V2: References added and minor modifications. Matches published version
title: Działania mające kształtować przestrzeń miasta poznania w odniesieniu do miejsc parkingowych i wpływ na zachowania komunikacyjne ich użytkowników
Creators: name: Szuman, Tomasz
name: Skórzewski, Wojciech
Publisher: name: Publishing House of Poznan University of Technology
Year: 2023

description: Zeszyty Naukowe Politechniki Poznańskiej. Architektura, Urbanistyka, Architektura Wnętrz, 15, 109-126
A model for the distribution of aftershock waiting times
Creators: name: Shcherbakov, Robert
name: Yakovlev, Gleb
name: Turcotte, Donald L.
name: Rundle, John B.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Geophysics (physics.geo-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: In this work the distribution of inter-occurrence times between earthquakes in aftershock sequences is analyzed and a model based on a non-homogeneous Poisson (NHP) process is proposed to quantify the observed scaling. In this model the generalized Omori's law for the decay of aftershocks is used as a time-dependent rate in the NHP process. The analytically derived distribution of inter-occurrence times is applied to several major aftershock sequences in California to confirm the validity of the proposed hypothesis.
description: 4 pages, 3 figures
Bürge für die Kirche - im Licht ihrer ökumenischen Möglichkeiten
Creators: name: Raiser, Konrad
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 36 Nr. 3 (1987): Ökumenische Rundschau, Band 36, Heft 3
Recent developments in plasmon-assisted photocatalysis -- a personal perspective
Creators: name: Sivan, Yonatan
name: Dubi, Yonatan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: Chemical Physics (physics.chem-ph)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: It has been known for many years that metallic nanoparticles can catalyse various chemical reactions, both in the dark and under illumination, through different mechanisms. In the last decade or so, many claims of plasmon-assisted "hot" electron driven catalysis of bond-dissociation reactions have been put forward. These claims were \XYZ{challenged} in a recent series of papers, where both the underlying theory of "hot" electron generation and the use of specific experimental setups to discover them in chemical reactions were examined in detail. The conclusion that arose from these works is that as long as temperature gradients exist inside the system (as for typical experimental setups) a quantification of non-thermal effects is close to impossible. Instead, a standard thermal theory was shown to be capable of explaining the experimental findings quite accurately. Here, we review the central lines of thought that led to these conclusions, from a personal perspective. We lay out the key aspects of the theory, and point to the specific caveats one must be aware of in performing photo-catalysis experiments. Finally, we provide some future directions of study.
description: This v2 contains an Erratum with respect to the published version in Appl. Phys. Letters at the end of the manuscript
Long-term contrasting tillage in Cambisol: effect on water-stable aggregates, macropore network and soil chemical properties
Creators: name: Kochiieru, Mykola
name: Feiziene, Dalia
name: Lamorski, Krzysztof
name: Deveikyte, Irena
name: Seibutis, Vytautas
name: Pranaitiene, Simona
name: Feiza, Virginijus
Publisher: name: Zenodo
Year: 2023
Subjects: Cambisoil
conventional tillage
no-tillage
X-ray computed tomography,
soil organic carbon

description: The aggregate stability of the soil is subject to theinfluence of anthropogenic factors and is of great interest all overthe world. The research aimed to quantify the correlations betweensoil organic carbon, total nitrogen, total phosphorus, and totalpotassium, soil macropore parameters and water-stable aggregatesunder no-tillage and conventional tillage in Cambisol. The contentof water-stable aggregates and macroporosity tended to increasein the following order: conventional tillage (returned residues)< conventional tillage (removed residues) < no-tillage (removedresidues) < no-tillage (returned residues) in both fertilizations.The relationships between total nitrogen and various soil factorswere investigated: soil organic carbon (r = 0.65, p < 0.05), totalphosphorus (r = 0.65, p < 0.05), were statistically significant. Soilorganic carbon and total nitrogen were positively correlated withwater-stable aggregates (r = 0.81, p < 0.01 and r = 0.68, p < 0.05,respectively), whereas the relationship between total potassiumand water-stable aggregates was negative. The relationshipbetween total phosphorus and water-stable aggregates (r = 0.62,p < 0.05) was positive. The soil chemical properties, macroporesand water-stable aggregates that were averaged across theresidues and fertilizations were higher in no-tillage than in conventionaltillage. Soil organic carbon, total nitrogen and totalphosphorus all had a positive direct influence on the formation ofwater-stable aggregates under different tillage conditions. Sinceour results are largely based on correlations, the mechanismsof interaction between the soil chemical properties, water-stableaggregates and the formation of pores in the soil need to beexplored further in future investigations.
[Small-group elicitation sessions]
Creators: name: Mukacha, Andrew
name: Bothfeld, Sarah
name: Granados, Alejandro
name: Hyman, Larry M.
name: Lei, Justin
name: Minas, Emil
name: Morales, Mark
name: Rolle, Nicholas
name: Schultz, Donald
name: Spingeld, Jeffrey
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: Lulamogi language

description: Grammatical elicitation
Quantum electrodynamic corrections to the hyperfine structure of excited S states
Creators: name: Jentschura, Ulrich D.
name: Yerokhin, Vladimir A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: State-dependent quantum electrodynamic corrections are evaluated for the hyperfine splitting of nS states for arbitrary principal quantum number n. The calculations comprise both the self-energy and the vacuum-polarization correction of order alpha(Z alpha)^2 E_F and the recoil correction of order (Z alpha)^2 (m/M) E_F. Higher-order corrections are summarized and partly reevaluated as well. Accurate predictions for hydrogen hyperfine splitting intervals of nS states with n=2,...,8 are presented. The results obtained are important due to steady progress in hydrogen spectroscopy for transitions involving highly excited S states.
description: 9 pages, RevTeX; to appear in Physical Review A
Floquet-engineering topological transitions in a twisted transition metal dichalcogenide homobilayer
Creators: name: Vogl, Michael
name: Rodriguez-Vega, Martin
name: Flebus, Benedetta
name: MacDonald, Allan H.
name: Fiete, Gregory A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Motivated by the recent experimental realization of twisted transition metal dichalcogenide bilayers, we study a simplified model driven by different forms of monochromatic light. As a concrete and representative example we use parameters that correspond to a twisted MoTe$_2$ homobilayer. First, we consider irradiation with circularly polarized light in free space and demonstrate that the corresponding Floquet Hamiltonian takes the same form as the static Hamiltonian, only with a constant overall shift in quasi-energy. This is in stark contrast to twisted bilayer graphene, where new terms are typically generated under an analagous drive. Longitudinal light, on the other hand, which can be generated from the transverse magnetic mode in a waveguide, has a much more dramatic effect--it renormalizes the tunneling strength between the layers, which effectively permits the tuning of the twist angle {\em in-situ}. We find that, by varying the frequency and amplitude of the drive, one can induce a topological transition that cannot be obtained with the traditional form of the Floquet drive in free space. Furthermore, we find that strong drives can have a profound effect on the layer pseudospin texture of the twisted system, which coincides with multiple simultaneous band gap closings in the infinite-frequency limit. Surprisingly, these bandgap closings are not associated with topological transitions. For high but finite drive frequencies near $0.7$eV, the infinite-frequency band crossings become band gap minima of the order of $10^{-6}$ eV or smaller.
On the global and \nabla-filtration dimensions of quasi-hereditary algebras
Creators: name: Erdmann, Karin
name: Parker, Alison E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Representation Theory (math.RT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 16G99

description: In this paper we consider how the \nabla-, Δ- and global dimensions of a quasi-hereditary algebra are interrelated. We first consider quasi-hereditary algebras with simple preserving duality and such that if μ< λthen \nabla fd(L(μ)) < \nabla fd(L(λ)) where μ, λare in the poset and L(μ), L(λ) are the corresponding simples. We show that in this case the global dimension of the algebra is twice its \nabla-filtration dimension. We then consider more general quasi-hereditary algebras and look at how these dimensions are affected by the Ringel dual and by two forms of truncation. We restrict again to quasi-hereditary algebras with simple preserving duality and consider various orders on the poset compatible with quasi-hereditary structure and the \nabla-, Δ- and injective dimensions of the simple and the costandard modules.
description: 18 pages, uses xypic