cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Next-Generation Comprehensive Data-Driven Models of Solar Eruptive Events
Creators: name: Allred, Joel C.
name: Kerr, Graham S.
name: Alaoui, Meriem
name: Buitrago-Casas, Juan Camilo
name: Caspi, Amir
name: Chen, Bin
name: Chen, Thomas Y.
name: Glesener, Lindsay
name: Guidoni, Silvina E.
name: Guo, Fan
name: Karpen, Judith T.
name: Musset, Sophie
name: Reeves, Katharine K.
name: Shih, Albert Y.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Solar flares and coronal mass ejections are interrelated phenomena that together are known as solar eruptive events. These are the main drivers of space weather and understanding their origins is a primary goal of Heliophysics. In this white paper, we advocate for the allocation of sufficient resources to bring together experts in observations and modeling to construct and test next generation data-driven models of solar eruptive events. We identify the key components necessary for constructing comprehensive end-to-end models including global scale 3D MHD resolving magnetic field evolution and reconnection, small scale simulations of particle acceleration in reconnection exhausts, kinetic scale transport of flare-accelerated particles into the lower solar atmosphere, and the radiative and hydrodynamics responses of the solar atmosphere to flare heating. Using this modeling framework, long-standing questions regarding how solar eruptive events release energy, accelerate particles, and heat plasma can be explored. To address open questions in solar flare physics, we recommend that NASA and NSF provide sufficient research and analysis funds to bring together a large body of researchers and numerical tools to tackle the end-to-end modeling framework that we outline. Current dedicated theory and modeling funding programs are relatively small scale and infrequent; funding agencies must recognize that modern space physics demands the use of both observations and modeling to make rapid progress.
description: White paper submitted to the Decadal Survey for Solar and Space Physics (Heliophysics) 2024-2033; 9 pages, 4 figures
Learning from Japan: The Case of China’s 2009 New Rural Pension Scheme
Creators: name: Tian, Tong
Publisher: name: Asien
Year: 2022

description: In 2009, the Chinese government established the New Rural Pension Scheme (NRPS). The NRPS was widely regarded as a significant institutional innovation, as it combined an already existing component, individual accounts, with a new one: non-contributory social pensions subsidized by the central government. This article asks how this synthesization of rather disparate components came about. With the aim of gaining insights into how Chinese policymakers learn from foreign policy ideas, the article focuses on one key international actor influencing this institutional innovation: the Japanese International Cooperation Agency (JICA), which led the only international cooperation project implemented at bureau level. Through its technical and intellectual assistance, JICA influenced the design of the NRPS, contributing to an ongoing domestic learning process, particularly regarding the establishment of a non-contributory social pension component and the central government taking fiscal responsibility. The article hereby contributes to a more nuanced understanding of a form of learning among Chinese policymakers, which takes a “synthesizing” approach. Based on explaining-outcome process-tracing and the triangulation of policy documents, archive materials, newspaper articles, secondary literature, and expert interviews, it also contributes to recent debates on transnational policy learning in China and adds to a barely researched sub-field of this larger debate: intra-Asian knowledge diffusion.
description: Asien, Nr. 156/157 (2020): ASIEN (Juli/Oktober)
Optimizing the spin sensitivity of grain boundary junction nanoSQUIDs -- towards detection of small spin systems with single-spin resolution
Creators: name: Wölbing, Roman
name: Schwarz, Tobias
name: Müller, Benedikt
name: Nagel, Joachim
name: Kemmler, Matthias
name: Kleiner, Reinhold
name: Koelle, Dieter
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present an optimization study of the spin sensitivity of nanoSQUIDs based on resistively shunted grain boundary Josephson junctions. In addition the dc SQUIDs contain a narrow constriction onto which a small magnetic particle can be placed (with its magnetic moment in the plane of the SQUID loop and perpendicular to the grain boundary) for efficient coupling of its stray magnetic field to the SQUID loop. The separation of the location of optimum coupling from the junctions allows for an independent optimization of the coupling factor $ϕ_μ$ and junction properties. We present different methods for calculating $ϕ_μ$ (for a magnetic nanoparticle placed 10\,nm above the constriction) as a function of device geometry and show that those yield consistent results. Furthermore, by numerical simulations we obtain a general expression for the dependence of the SQUID inductance on geometrical parameters of our devices, which allows to estimate their impact on the spectral density of flux noise $S_Φ$ of the SQUIDs in the thermal white noise regime. Our analysis of the dependence of $S_Φ$ and $ϕ_μ$ on the geometric parameters of the SQUID layout yields a spin sensitivity $S_μ^{1/2}=S_Φ^{1/2}/ϕ_μ$ of a few $μ_{\rm{B}}/\rm{Hz^{1/2}}$ ($μ_B$ is the Bohr magneton) for optimized parameters, respecting technological constraints. However, by comparison with experimentally realized devices we find significantly larger values for the measured white flux noise, as compared to our theoretical predictions. Still, a spin sensitivity on the order of $10\,μ_{\rm B}/\rm{Hz^{1/2}}$ for optimized devices seems to be realistic.
description: 10 pages, 5 figures, Superconductor Science and Technology (submitted). arXiv admin note: text overlap with arXiv:1301.1189 The paper has been withdrawn due to a wrong article number assignment. The article 1406.1402 was intended to be a replacement of 1301.1189
Graph Neural Networks in Computer Vision -- Architectures, Datasets and Common Approaches
Creators: name: Krzywda, Maciej
name: Łukasik, Szymon
name: Gandomi, Amir H.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Graph Neural Networks (GNNs) are a family of graph networks inspired by mechanisms existing between nodes on a graph. In recent years there has been an increased interest in GNN and their derivatives, i.e., Graph Attention Networks (GAT), Graph Convolutional Networks (GCN), and Graph Recurrent Networks (GRN). An increase in their usability in computer vision is also observed. The number of GNN applications in this field continues to expand; it includes video analysis and understanding, action and behavior recognition, computational photography, image and video synthesis from zero or few shots, and many more. This contribution aims to collect papers published about GNN-based approaches towards computer vision. They are described and summarized from three perspectives. Firstly, we investigate the architectures of Graph Neural Networks and their derivatives used in this area to provide accurate and explainable recommendations for the ensuing investigations. As for the other aspect, we also present datasets used in these works. Finally, using graph analysis, we also examine relations between GNN-based studies in computer vision and potential sources of inspiration identified outside of this field.
description: 2022 International Joint Conference on Neural Networks (IJCNN), 2022
Historic American Engineering Record Documentation of Launch Complex 1/2 Cape Canaveral Air Force Station, Brevard County, Florida
Creators: name: Enscore, Susan
name: Hinder, Kimberly
Publisher: name: Historic American Engineering Record, National Park Service
Year: 2016
Subjects: subject: Florida (State / Territory)
valueUri: https://core.tdar.org/browse/geographic-keyword/2273/florida-state-territory
subject: Cape Canaveral
valueUri: https://core.tdar.org/browse/geographic-keyword/23155/cape-canaveral
subject: Brevard (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/14443/brevard-county
subject: Cold War
valueUri: https://core.tdar.org/browse/temporal-keyword/7288/cold-war
subject: Launch Complex 1 & 2
valueUri: https://core.tdar.org/browse/site-name/116311/launch-complex-1-2
subject: MATATDOR
valueUri: https://core.tdar.org/browse/other-keyword/164512/matatdor
subject: Cape Canaveral Air Force Station
valueUri: https://core.tdar.org/browse/other-keyword/96049/cape-canaveral-air-force-station
subject: SNARK
valueUri: https://core.tdar.org/browse/other-keyword/164453/snark
subject: Architectural Documentation
valueUri: https://core.tdar.org/browse/investigation-type/16/architectural-documentation
subject: Historic Background Research
valueUri: https://core.tdar.org/browse/investigation-type/18/historic-background-research
subject: Architectural Survey
valueUri: https://core.tdar.org/browse/investigation-type/2/architectural-survey
subject: Records Search / Inventory Checking
valueUri: https://core.tdar.org/browse/investigation-type/8/records-search-inventory-checking

description: HAER documentation of Launch Complex 1 & 2 located on Cape Canaveral Air Force Station, Florida. This record contains written, graphic, and photographic material as required for mitigation when a significant historic resource is altered or demolished. Constructed between 1951 and 1953, Launch Complex 1/2 at Cape Canaveral Air Force Station played a significant role in the larger missile research and development program that provided the United States with an operational, conventional, and nuclear missile force for defense in the arms race.
Tracing Anthropogenic Impact on Arsenic Mobility in the Groundwater of Bangladesh and Southeast Asia — A Review of Methods and Results
Creators: name: N. Stirn, Charlotte
name: V. Maier, Martin
name: Bubenzer, Olaf
Publisher: name: Asien
Year: 2022

description: The effect of anthropogenic impact on groundwater resources in Southeast Asian countries is subject to scientific debate, since it is increasingly considered a contributor to the observed contamination of groundwater with arsenic. It can be diverse, and range from direct pollution, through alteration of hydraulic conditions to indirect effects on geochemical conditions and reactions. While direct pollution can be observed easily, the hydraulic and indirect impact on groundwater quality are more difficult to determine. Nevertheless, considering a generally increasing anthropogenic impact, its complex effects on groundwater chemistry and quality need to be kept in mind, especially if the causes are less obvious. In order to detect this impact, different approaches have been applied over the past few decades. This paper reviews the multiple indicators and approaches used in various studies to trace anthropogenic influences on geochemical conditions leading to high arsenic groundwater content in Bangladesh and South/Southeast Asia. Future research has to address increasingly the spatial complexity and subsurface heterogeneity through clay layers and hydrogeological differences, as well as the temporal development of local contaminant plumes.
description: Asien, Nr. 156/157 (2020): ASIEN (Juli/Oktober)
Additional file 1 of Scl-Ab reverts pro-osteoclastogenic signalling and resorption in estrogen deficient osteocytes
Creators: name: H. Allison
name: G. Holdsworth
name: L. M. McNamara
Publisher: name: figshare
Year: 2020
Subjects: subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: Science Policy
subject: Marine Biology
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1: Supplementary Figure 1. The effect of CM from OCY454 cells on osteoclastogenesis in RAW264.7 cell cultures. Images show (A) multinucleated TRAP+ osteoclasts (orange arrows) (N = 3, n = 9) after RAW264.7 cells were treated with CM from OCY454 cells. Quantification of images showing (B) percentage surface area covered by TRAP+ multinucleated cells (N = 3, n = 9), (C) TRAP activity in supernatant collected from multinucleated cells (N = 3, n = 9). E, estrogen treatment; ED, Estrogen deficient; Scl-Ab, Sclerostin antibody. Student’s t-test. * = p
USAF Ground Launched Cruise Missiles: A Study in Technology, Concepts, and Deterrence
Creators: name: Lanning, Randall L.
Publisher: name: Air University Press
Year: 1992
Subjects: subject: Florida (State / Territory)
valueUri: https://core.tdar.org/browse/geographic-keyword/2273/florida-state-territory
subject: Cape Canaveral
valueUri: https://core.tdar.org/browse/geographic-keyword/23155/cape-canaveral
subject: Brevard (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/14443/brevard-county
subject: Cape Canaveral Air Force Station
valueUri: https://core.tdar.org/browse/other-keyword/96049/cape-canaveral-air-force-station

description: Although generally neglected by historians, USAF Ground Launched Cruise Missiles (GLCM) have made important contributions to US national security. The paper begins with a brief description of the German V-1, the first true operational GLCM. The balance of the paper traces the lineage of the three tactical, theater-based GLCMs that served with the US Air Force.
Piecewise Linear Wilson lines
Creators: name: Van der Veken, Frederik F.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Wilson lines, being comparators that render non-local operator products gauge invariant, are extensively used in QCD calculations, especially in small-$x$ calculations, calculations concerning validation of factorisation schemes and in calculations for constructing or modelling parton density functions. We develop an algorithm to express piecewise path ordered exponentials as path ordered integrals over the separate segments, and apply it on linear segments, reducing the number of diagrams needed to be calculated. We show how different linear path topologies can be related using their colour structure. This framework allows one to easily switch results between different Wilson line structures, which is especially useful when testing different structures against each other, e.g. when checking universality properties of non-perturbative objects.
description: Proceedings for Transversity 2014, 6 pages
Combining astrometry and JUICE -- Europa Clipper radio science to improve the ephemerides of the Galilean moons
Creators: name: Fayolle, M.
name: Magnanini, A.
name: Lainey, V.
name: Dirkx, D.
name: Zannoni, M.
name: Tortora, P.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The upcoming JUICE and Europa Clipper missions to Jupiter's Galilean satellites will provide radio science tracking measurements of both spacecraft. Such data are expected to significantly help estimating the moons' ephemerides and related dynamical parameters. However, the two missions will yield an imbalanced dataset, with no flybys planned at Io, condensed over less than six years. Current ephemerides' solutions for the Galilean moons, on the other hand, rely on ground-based astrometry collected over more than a century which, while being less accurate, bring very valuable constraints on the long-term dynamics of the system. An improved solution for the Galilean satellites' complex dynamics could however be achieved by exploiting the existing synergies between these different observation sets. To quantify this, we merged simulated JUICE and Clipper radio science data with existing ground-based astrometric and radar observations, and performed the inversion. Our study specifically focusses on the resulting formal uncertainties in the moons' states, as well as Io's and Jupiter's tidal dissipation parameters. Adding astrometry stabilises the moons' state solution, especially beyond the missions' timelines. It furthermore reduces the uncertainties in $1/Q$ (inverse of the tidal quality factor) by a factor two to four for Jupiter, and about 30-35\% for Io. Among all data types, classical astrometry data prior to 1960 proved particularly beneficial. We also show that ground observations of Io add the most to the solution, confirming that ground observations can fill the lack of radio science data for this specific moon. We obtained a noticeable solution improvement when exploiting the complementarity between all different observation sets. These promising simulation results thus motivate future efforts to achieve a global solution from actual JUICE and Clipper radio science data.
Commercialization versus De-intensification? Markets, Livelihoods, and Agricultural Change in Northern Pakistan
Creators: name: Spies, Michael
Publisher: name: Asien
Year: 2022

description: Based on a case study in northern Pakistan, this paper investigates the complex processes of change that have reshaped local farming systems there in recent decades. In Pakistan, agricultural policies emphasize intensification and productivity growth as overarching, nationwide goals. In an empirical investigation of changing farming practices in the mountain district of Nagar, guided by an assemblage-theory perspective on agricultural change, the paper questions this lopsided view. The case study reveals a significant shift from subsistence- to market-oriented crop production in recent decades, but also an emerging tendency among farmers to invest less time and effort in sophisticated and productivity-enhancing practices — in other words, a certain de-intensification of the latter. These processes may seem contradictory, but make sense for local households who adapt their farming strategies to a changing social, political, and economic context. Following political reforms and major road improvements, new livelihood opportunities, lifestyles, and ideals have emerged in the community and contributed to a significant shift away from farming aspirations, despite a general process of agricultural commercialization. The paper concludes that processes of agricultural development cannot be adequately addressed by the narrowly defined productivity goals of related policies in Pakistan, as for smallholder farmers the maximization of production is not necessarily a priority. Instead, more holistic approaches are needed that focus on safeguarding the agricultural resource base while also supporting the aspiration of local farming households to diversify their livelihoods.
description: Asien, Nr. 156/157 (2020): ASIEN (Juli/Oktober)
title: Single Object Detection Using Multiple Sensors with Unknown Noise Distributions
Creators: name: Chen, Shaofen
Publisher: name: Old Dominion University Libraries
Year: 1992

description: We consider the design of an object classification system that identifies single objects using a system of sensors; each sensor outputs a random vector, according to an unknown (noise) probability distribution, in response to a sensed object. We consider a special class of systems, called the linearly separable systems, where the error-free sensor outputs corresponding to distinct objects can be mapped into disjoint intervals on real line. Given a set of sensor outputs corresponding to known objects, we show that a detection rule αemp that approaches the correct rule with a high probability can be computed. We show that the underlying computational problem can be reduced to a special case of the quadratic programming problem which can be solved in polynomial time.
Correlation between the optical veiling and accretion properties: A case study of the classical T Tauri star DK Tau
Creators: name: Nelissen, M.
name: Natta, A.
name: McGinnis, P.
name: Pittman, C.
name: Delvaux, C.
name: Ray, T.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Classical T Tauri stars (cTTs) accrete from their circumstellar disk. The material falls onto the stellar surface, producing an accretion shock, which generates veiling in a star's spectra. In addition, the shock causes a localized accretion spot at the level of the chromosphere. Our goal is to investigate the accretion, particularly the mass accretion rates (Macc), for the cTTs DK Tau, over two periods of 17 and 29 days, using two different procedures for comparison purposes. The first method relies on the derivation of the accretion luminosity via accretion-powered emission lines. The second compares the variability of the optical veiling with accretion shock models to determine mass accretion rates. We used observations taken in 2010 and 2012 with the ESPaDOnS spectropolarimeter at the CFHT. We find peak values of the veiling (at 550 nm) ranging from 0.2 to 1.3, with a steeper trend across the wavelength range for higher peak values. When using the accretion-powered emission lines, we find mass accretion rate values ranging from log(Macc[Msol/yr]) = -8.20 to log(Macc[Msol/yr]) = -7.40. This agrees with the values found in the literature, as well as the values calculated using the accretion shock models and the veiling. In addition, we identify a power-law correlation between the values of the accretion luminosity and the optical veiling. For the 2010 observations, using the values of the filling factors (which represent the area of the star covered by an accretion spot) derived from the shock models, we infer that the accretion spot was located between +45 degrees and +75 degrees in latitude. We show that both methods of determining the mass accretion rate yield similar results. We also present a helpful means of confirming the accretion luminosity values by measuring the veiling at a single wavelength in the optical.
title: The Impact of USU Extension on Building Vibrant Communities
Creators: name: LeBlanc, Heidi
Publisher: name: Utah State University
Year: 2023

description: Utah consists of many rural counties spread out over vast areas of land, and only a few urban counties in centralized locations. As a result, there is an increasing disparity in economic opportunities for residents in rural counties. Therefore, the aim of the Vibrant Communities program at Utah State University (USU) Extension is to strengthen communities across Utah through facilitated community-focused coalitions and partnerships, entrepreneurship education, and strategic initiatives to facilitate economic and social well-being.
Preliminary results on the characterization and performances of ZBLAN fiber for infrared spectrographs
Creators: name: Iuzzolino, M.
name: Tozzi, A.
name: Sanna, N.
name: Zangrilli, L.
name: Oliva, E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Present telescopes and future extremely large telescopes make use of fiber-fed spectrographs to observe at optical and infrared wavelengths. The use of fibers largely simplifies the interfacing of the spectrograph to the telescope. At a high spectral resolution (R>50,000) the fibers can be used to achieve very high spectral accuracy. GIANO is an infrared (0.95-2.5μm) high resolution (R=50,000) spectrometer[1] [2] [3] that was recently commissioned at the TNG telescope (La Palma). This instrument was designed and built for direct feeding from the telescope [4]. However, due to constraints imposed on the telescope interfacing during the pre-commissioning phase, it had to be positioned on the rotating building, far from the telescope focus. Therefore, a new interface to the telescope, based on IR-transmitting ZBLAN fibers with 85 μm core, was developed. In this article we report the first, preliminary results of the effects of these fibers on the quality of the recorded spectra with GIANO and with a similar spectrograph that we set-up in the laboratory. The effects can be primarily associated to modal-noise (MN) that, in GIANO, is much more evident than in optical spectrometers, because of the much longer wavelengths.
description: 11 pages, 5 figures, 1 table. Presented at SPIE Astronomical Telescope + Instrumentation 2014 (Ground-based and Airbone Instrumentation for Astronomy 5, 9147-231). To be published in Proceeding of SPIE Volume 9147
$B\to D^{(\ast)}\ellν$ at non-zero recoil
Creators: name: Vaquero, Alejandro
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: $B$ anomalies play a prominent role in Beyond the Standard Model (BSM) physics searches. In particular, the long standing tension between the inclusive and the exclusive determinations of the CKM matrix element $|V_{cb}|$ and the current tensions in the $R(D)$--$R(D^\ast)$ plane between theory and experiment have brought the $B\to D^{(\ast)}\ellν$ semileptonic processes to the spotlight. Existing lattice-QCD calculations of the $B\to D\ellν$ form factors at non-zero recoil are being complemented with very recent developments in the $B\to D^\ast\ellν$ channel. In this review I discuss recent progress in lattice calculations of $B\to D^{(\ast)}\ellν$, as well as the implications of these results for high precision determinations of $|V_{cb}|$ and the Lepton Flavor Universality (LFU) ratios $R(D^{(\ast)})$.
description: 19 pages, 18 figures. Proceedings of the 39th International Symposium on Lattice Field Theory (Lattice2022), 8-13 August, 2022, Bonn, Germany
Emergence of collective motion in a model of interacting Brownian particles
Creators: name: Dossetti, Victor
name: Sevilla, Francisco J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: By studying a system of Brownian particles, interacting only through a local social-like force (velocity alignment), we show that self-propulsion is not a necessary feature for the flocking transition to take place as long as underdamped particle dynamics can be guaranteed. Moreover, the system transits from stationary phases close to thermal equilibrium, with no net flux of particles, to far-from-equilibrium ones exhibiting collective motion, long-range order and giant number fluctuations, features typically associated to ordered phases of models where self-propulsion is considered.
description: 5 pages, 2 figures
Efficiency of message transmission using biased random walks in complex networks in the presence of traps
Creators: name: Skarpalezos, Loukas
name: Kittas, Aristotelis
name: Argyrakis, Panos
name: Cohen, Reuven
name: Havlin, Shlomo
Publisher: name: arXiv
Year: 2014
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: We study the problem of a particle/message that travels as a biased random walk towards a target node in a network in the presence of traps. The bias is represented as the probability $p$ of the particle to travel along the shortest path to the target node. The efficiency of the transmission process is expressed through the fraction $f_g$ of particles that succeed to reach the target without being trapped. By relating $f_g$ with the number $S$ of nodes visited before reaching the target, we firstly show that, for the unbiased random walk, $f_g$ is inversely proportional to both the concentration $c$ of traps and the size $N$ of the network. For the case of biased walks, a simple approximation of $S$ provides an analytical solution that describes well the behavior of $f_g$, especially for $p>0.5$. Also, it is shown that for a given value of the bias $p$, when the concentration of traps is less than a threshold value equal to the inverse of the Mean First Passage Time (MFPT) between two randomly chosen nodes of the network, the efficiency of transmission is unaffected by the presence of traps and almost all the particles arrive at the target. As a consequence, for a given concentration of traps, we can estimate the minimum bias that is needed to have unaffected transmission, especially in the case of Random Regular (RR), Erdős-Rényi (ER) and Scale-Free (SF) networks, where an exact expression (RR and ER) or an upper bound (SF) of the MFPT is known analytically. We also study analytically and numerically, the fraction $f_g$ of particles that reach the target on SF networks, where a single trap is placed on the highest degree node. For the unbiased random walk, we find that $f_g \sim N^{-1/(γ-1)}$, where $γ$ is the power law exponent of the SF network.
description: 15 pages, 8 figures
Mode coupling coefficients between the convective core and radiative envelope of $γ\,$Doradus and slowly pulsating B stars
Creators: name: Aerts, Conny
name: Mathis, Stéphane
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Signatures of coupling between an inertial mode in the convective core and a gravito-inertial mode in the envelope have been found in four-year Kepler light curves of 16 rapidly rotating $γ\,$Doradus ($γ\,$Dor) stars. This makes it possible to obtain a measurement of the rotation frequency in their convective core. Despite their similar internal structure and available data, inertial modes have not yet been reported for slowly pulsating B (SPB) stars. We aim to provide a numerical counterpart of the recently published theoretical expressions for the mode-coupling coefficients, $\varepsilon$ and $\tilde{\varepsilon}$. These coefficients represent the two cases of a continuous and a discontinuous Brunt-Väisälä frequency profile at the core-envelope interface, respectively. We used asteroseismic forward models of two samples consisting of 26 SPB stars and 37 $γ\,$Dor stars to infer their numerical values of $\varepsilon$. The asteroseismically inferred values of $\varepsilon$ for the two samples are between 0.0 and 0.34. While $\varepsilon$ is most strongly correlated with the near-core rotation frequency for $γ\,$Dor stars, the fractional radius of the convective core instead provides the tightest correlation for SPB stars. We find $\varepsilon$ to decrease mildly as the stars evolve. Our asteroseismic results for the mode coupling support the theoretical interpretation and reveal that young, fast-rotating $γ\,$Dor stars are most suitable for undergoing couplings between inertial modes in the rotating convective core and gravito-inertial modes in the radiative envelope. The phenomenon has been found in 2.4\% of such pulsators with detected period spacing patterns, whereas it has not been seen in any of the SPB stars so far. (shortened abstract to meet the arXiv limits)
description: Manuscript in press at A&A, 9 pages, 8 figures
Supermarket Revolution in Bangladesh? Evidence from a “blind spot” on the Research Map
Creators: name: Hobelsberger, Christine
Publisher: name: Asien
Year: 2022

description: Even though Bangladesh entered the supermarket era nearly twenty years ago, the country has remained something of a “blind spot” on the research map of the so-called “supermarket revolution” in countries of the Global South. The present paper strives to contribute to filling this research gap by providing an explorative, empirically grounded portrayal of the phenomenon of “supermarketization” in Bangladesh from the retailer perspective. The findings reveal that Bangladesh’s supermarket industry is thus far a “homemade” development, which, despite considerable achievements in the first nearly two decades of its existence, is still being hampered by considerable hurdles on both the supply and demand sides. The exploratory, primary data-based findings of this study provide a valuable base for further research in a dynamic field.
description: Asien, Nr. 156/157 (2020): ASIEN (Juli/Oktober)
Historic American Engineering Record Documentation of Launch Complex 3/4 Cape Canaveral Air Force Station, Brevard County, Florida
Creators: name: Enscore, Susan I.
name: Hinder, Kimberly
Publisher: name: Historic American Engineering Record, National Park Service
Year: 2016
Subjects: subject: Florida (State / Territory)
valueUri: https://core.tdar.org/browse/geographic-keyword/2273/florida-state-territory
subject: Cape Canaveral
valueUri: https://core.tdar.org/browse/geographic-keyword/23155/cape-canaveral
subject: Brevard (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/14443/brevard-county
subject: Cold War
valueUri: https://core.tdar.org/browse/temporal-keyword/7288/cold-war
subject: Launch Complex 3 & 4
valueUri: https://core.tdar.org/browse/site-name/116315/launch-complex-3-4
subject: Cape Canaveral Air Force Station
valueUri: https://core.tdar.org/browse/other-keyword/96049/cape-canaveral-air-force-station
subject: Architectural Documentation
valueUri: https://core.tdar.org/browse/investigation-type/16/architectural-documentation
subject: Historic Background Research
valueUri: https://core.tdar.org/browse/investigation-type/18/historic-background-research
subject: Records Search / Inventory Checking
valueUri: https://core.tdar.org/browse/investigation-type/8/records-search-inventory-checking
subject: Site Evaluation / Testing
valueUri: https://core.tdar.org/browse/investigation-type/10/site-evaluation-testing

description: HAER documentation of Launch Complex 3/4 located on Cape Canaveral Air Force Station, Florida. This record contains written, graphic, and photographic material as required for mitigation when a significant historic resource is altered or demolished. With over 125 missile launches between 1950 and 1960, Launch Complex 3/4 at Cape Canaveral Air Force Station played a vital role in the larger missile research and development program that provided the United States with an operational, conventional, and nuclear missile force for K195 defense in the arms race.
Numerical modeling of pulverized iron flames in a multidimensional hot counterflow burner
Creators: name: Wen, Xu
name: Scholtissek, Arne
name: van Oijen, Jeroen
name: Bergthorson, Jeffery
name: Hasse, Christian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Pulverized iron flames stabilized in a multidimensional hot counterflow burner are simulated using a numerical model, which is extended from the state-of-the-art model developed by Hazenberg and van Oijen (PCI, 2021) considering unsteady effects. The results are compared to available experimental data (McRae et al., PCI, 2019), including particle image velocimetry measurements, a direct flame photo, the flow field velocity and the flame speed for different iron and oxygen concentrations. The comparison shows that the particle dynamics and flame shape can be reasonably well predicted. The flow field velocity and flame speed also show quantitative agreement between the simulation and the experiment. Based on the validated simulation results, the iron combustion characteristics, including the thermal structures and the multidimensional effects, are analyzed for different oxidizer environments. The analysis shows that the iron particles undergo a transition from kinetic-controlled regime (up to ignition) to a diffusion-controlled regime (burning) at the central axis for both environments with the particle temperature being higher than the gas temperature at the flame front, which is indicated by the Damköhler number. For the hot counterflow burner, there exist multidimensional effects, i.e., the temperature and Damköhler number change along the radial direction.
Study of the process $e^+e^-\to n\bar{n}$ at the VEPP-2000 $e^+e^-$ collider with the SND detector
Creators: name: Achasov, M. N.
name: Barnyakov, A. Yu.
name: Beloborodov, K. I.
name: Berdyugin, A. V.
name: Berkaev, D. E.
name: Bogdanchikov, A. G.
name: Botov, A. A.
name: Dimova, T. V.
name: Druzhinin, V. P.
name: Golubev, V. B.
name: Kardapoltsev, L. V.
name: Kasaev, A. S.
name: Kharlamov, A. G.
name: Kirpotin, A. N.
name: Koop, I. A.
name: Korol, A. A.
name: Koshuba, S. V.
name: Kovrizhin, D. P.
name: Kupich, A. S.
name: Martin, K. A.
name: Obrazovsky, A. E.
name: Pakhtusova, E. V.
name: Rogovsky, Yu. A.
name: Senchenko, A. I.
name: Serednyakov, S. I.
name: Silagadze, Z. K.
name: Shatunov, Yu. M.
name: Shtol, D. A.
name: Shwartz, D. B.
name: Skrinsky, A. N.
name: Surin, I. K.
name: Tikhonov, Yu. A.
name: Usov, Yu. V.
name: Vasiljev, A. V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The process $e^+e^-\to n\bar{n}$ has been studied at the VEPP-2000 $e^+e^-$ collider with the SND detector in the energy range from threshold up to 2 GeV. As a result of the experiment, the $e^+e^-\to n\bar{n}$ cross section and effective neutron form factor have been measured.
SHPO: Determination of Eligibility for the Launch Complex 516 (LC 516) Spin Test Facility, Cape Canaveral Air Force Station (CCAFS), Brevard County, Florida
Creators: name: Bendus, Robert F.
Publisher: name: Florida Division of Historic Resources
Year: 2014
Subjects: subject: Florida (State / Territory)
valueUri: https://core.tdar.org/browse/geographic-keyword/2273/florida-state-territory
subject: Cape Canaveral
valueUri: https://core.tdar.org/browse/geographic-keyword/23155/cape-canaveral
subject: Brevard (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/14443/brevard-county
subject: Cold War
valueUri: https://core.tdar.org/browse/temporal-keyword/7288/cold-war
subject: 8BR03054
valueUri: https://core.tdar.org/browse/site-name/117026/8br03054
subject: 8BR03056
valueUri: https://core.tdar.org/browse/site-name/117025/8br03056
subject: 8BR03053
valueUri: https://core.tdar.org/browse/site-name/117028/8br03053
subject: 8BR03055
valueUri: https://core.tdar.org/browse/site-name/117027/8br03055
subject: Launch Complex 5/6 Spin Test Facility
valueUri: https://core.tdar.org/browse/site-name/117029/launch-complex-56-spin-test-facility
subject: 8BR00216
valueUri: https://core.tdar.org/browse/site-name/116090/8br00216
subject: Cape Canaveral Air Force Station
valueUri: https://core.tdar.org/browse/other-keyword/96049/cape-canaveral-air-force-station
subject: Architectural Documentation
valueUri: https://core.tdar.org/browse/investigation-type/16/architectural-documentation
subject: Consultation
valueUri: https://core.tdar.org/browse/investigation-type/4/consultation
subject: Reconnaissance / Survey
valueUri: https://core.tdar.org/browse/investigation-type/7/reconnaissance-survey
subject: Site Evaluation / Testing
valueUri: https://core.tdar.org/browse/investigation-type/10/site-evaluation-testing

description: SHPO Correspondence regarding the potential adverse effects to the Spin Test Facility.
Comprehensive analysis on photon-electron Lorentz-violation parameter plane
Creators: name: He, Ping
name: Ma, Bo-Qiang
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Large High Altitude Air Shower Observatory~(LHAASO) opens the window of ultra-high-energy~(UHE) photon detection, broadens the path of testing basic physical concept such as Lorentz symmetry, and brings possibility of potential high-energy physical phenomenon research such as photon decay and electron decay. Currently, the UHE photons from LHAASO observation set strict constraints on photon and electron Lorentz symmetry violation~(LV) effects. To obtain a global impression of the photon-electron LV parameter plane, we make a detailed analysis for photon decay and electron decay. Our discussion gives the corresponding decay thresholds and energy-momentum distributions in different LV parameter configurations. We get corresponding constraints on photon LV parameter, electron LV parameter and the photon-electron LV parameter plane from LHAASO observation. For the space allowed for LV effect, that is beyond relativity, we also provide corresponding boundaries from LHAASO observation.
description: 10 pages,3 figures, final version for publication
Free School Meals and the Reproduction of Inequalities: Caste and Gender in Food Production for Delhi’s Slum Schools
Creators: name: Bonaker, Alva
Publisher: name: Asien
Year: 2022

description: The Indian Mid Day Meal Scheme (MDMS) – one of the largest school meal programmes in the world, currently reaching over 115 million children – was introduced in 1995 nationally with a twofold aim: enhancing school enrolment and retention as well as improving nutrition levels among poor children. According to the guidelines of the programme and a Supreme Court order, moreover, the scheme was intended to create employment opportunities especially for people from disadvantaged backgrounds, namely women, Scheduled Castes, Scheduled Tribes and other minorities. This article focuses on employment practices and labour regimes in the food production processes of the scheme, asking: To what extent are inequalities reduced or reproduced in the production of school lunches? In the rural context, where predominantly local women work in school-level kitchens, large numbers of them face caste-based discrimination and underpayment. While issues of caste distinction and underpayment are by no means absent in urban areas, where the food is produced in centralised kitchens, this case study, which focuses on the urban context of Delhi, reveals that gender inequality is the prevailing feature here. Further, I found no particular effort to employ people from disadvantaged castes in the kitchen of Bhojan Foundation. At this non-governmental organisation, which provides food to approximately 130,000 children in 260 schools across Delhi, the bulk of the work in the semi-automated kitchen is done by men, while women (about 50 per cent of whom are Dalits) are engaged almost exclusively for the poorly remunerated distribution of the food. Generally, at Bhojan Foundation all women are counted as ‘unskilled’ workers and receive much lower wages than men. The article examines the underlying mechanisms of institutional management that create little scope for challenging inequalities, but rather foster gender stereotypes regarding ‘male’ and ‘female’ work and thereby contribute to reproducing gender and caste inequalities within wider society.
description: Asien, Nr. 156/157 (2020): ASIEN (Juli/Oktober)
Variable viscosity condition in the modeling of a slider bearing
Creators: name: Uprety, Kedar Nath
name: Mancas, Stefan C.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: To reduce tear and wear of machinery lubrication is essential. Lubricants form a layer between two surfaces preventing direct contact and reduce friction between moving parts and hence reduce wear. In this short letter the lubrication of two slider bearings with parallel and nonparallel is studied. First, we show that bearings with parallel plates cannot support any load. For bearings with nonparallel plates we are interested on how constant and temperature dependent viscosity affects the properties of the bearings. Also, a critical temperature for which the bearings would fail due to excess in temperature is found for both latter cases. If the viscosity is constant, the critical temperature is given by an explicit formula, while for the non-constant viscosity the critical temperature can be always found from a closed form formula involving Weber functions
description: 8 pages, 3 figures
Geographies of South Asia: Empirical Research and the Pandemic
Creators: name: Butsch, Carsten
name: Follmann, Alexander
name: Keck, Markus
name: Müller, Judith
Publisher: name: Asien
Year: 2022

description: Empirical research is essential for Geography as a discipline. However, due to the current pandemic, collecting data and conducting fieldwork abroad has become an impossibility. Under current circumstances projects can only be carried out with reduced scope or have been completely put on hold, while researchers and PhD candidates are struggling with a very difficult situation – not only data-wise. Against this backdrop, we would like to use the scope of this editorial to reflect upon the meaning of the current COVID-19 pandemic both for geographical research in South Asia and for Geography as discipline. First, we will provide an overview of empirical studies that members of the South Asia Study Group have recently conducted and published. Afterward, we will briefly illustrate how the pandemic has unfolded in South Asian countries and affected their societies. Finally, we will discuss how geographers are dealing with the current situation and what we can learn from it for the future of Geography as a discipline with regional competences.
description: Asien, Nr. 156/157 (2020): ASIEN (Juli/Oktober)
Advanced exergoeconomic analysis of a power plant with CO2 capture
Creators: name: Petrakopoulou, Fontina
name: Tsatsaronis, George
name: Morosuk, Tatiana
Publisher: name: Technische Universität Berlin
Year: 2015
Subjects: subject: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
subject: cost optimization
subject: advanced exergoeconomic analysis
subject: oxy-fuel combustion
subject: combined-cycle power plant
subject: CO2 capture

description: Conventional exergy-based analyses reveal options for improving energy conversion systems, but they suffer from some limitations that are addressed by advanced exergy-based analyses. Advanced exergy-based methods are capable of (1) identifying interdependencies among plant components (endogenous / exogenous values), and (2) revealing the potential for improvement (avoidable / unavoidable values). Thus, data obtained from these methods pinpoint strengths and weaknesses of energy conversion systems and are of great importance when complex plants with a large number of interconnected components are considered. This paper presents one of the first applications of an advanced exergoeconomic analysis to a complex power plant. The plant includes a mixed conducting membrane for oxy-fuel combustion and CO2 capture. The results show that for the most influential components of the plant, the largest part of investment cost and of the costs of exergy destruction is unavoidable. Additionally, in most cases the interactions among the components are of lower importance and, for the majority of the components, the endogenous parts of the costs (related to the internal operation of each component) are significantly larger than the corresponding exogenous parts (related to component interactions). Nevertheless, relatively strong interactions have been found among the components that constitute the mixed conducting membrane reactor of the plant.