cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Cosmologia com aglomerados de galáxias
Creators: name: Penna-Lima, M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Galaxy clusters are important cosmological probes since their abundance and spatial distribution are directly linked to structure formation on large scales. The principal uncertainty source on the cosmological parameter constraints concerns the cluster mass estimation from mass proxies. In addition, future surveys will provide a large amount of data, requiring an improvement in the accuracy of other elements used in the construction of cluster likelihoods. Therefore, accurate modeling of the mass-observable relations and reducing the effect of different systematic errors are fundamental steps for the success of cluster cosmology. In this work, we briefly review the abundance of galaxy clusters and discuss many sources of uncertainty. Os aglomerados de galáxias são importantes sondas cosmológicas, já que a abundância e a distribuição espacial desses objetos estão diretamente ligadas à formação de estruturas em grandes escalas. A maior fonte de incerteza nas restrições de parâmetros cosmológicos é originária das estimativas das massas dos aglomerados a partir da relação massa-observável. Além disso, os próximos grandes levantamentos fornecerão uma grande quantidade de dados, requerendo uma melhoria na precisão de outros elementos utilizados na construção das verossimilhanças de aglomerados. Portanto, uma modelagem precisa da relação massa-observável e diminuir o efeito dos diferentes erros sistemáticos são passos fundamentais para o sucesso da cosmologia com aglomerados. Neste trabalho, fazemos uma breve revisão da abundância de aglomerados de galáxias, e discussão de diferentes fontes de incerteza.
description: 9 pages, text in Portuguese. Proceeding do evento As Astrocientistas: I Encontro Brasileiro de Meninas e Mulheres da Astrof\'isica, Cosmologia e Gravita\c{c}\~ao. Realizado remotamente entre 08 e 11 de fevereiro de 2021. https://astrocientistas.wixsite.com/astrocientistas
Additional file 4 of Citizens’ opinions and experiences related to costs and reimbursements for medications in times of retrenchment: cross-sectional population surveys in 2015 and 2017
Creators: name: Aaltonen, Katri
name: Niemelä, Mikko
name: Prix, Irene
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Biotechnology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 4. Health status, survey type, and socio-demographic characteristics of the study population in total and by exposure group in the pooled 2015 and 2017 data.
BERTino: an Italian DistilBERT model
Creators: name: Muffo, Matteo
name: Bertino, Enrico
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: The recent introduction of Transformers language representation models allowed great improvements in many natural language processing (NLP) tasks. However, if on one hand the performances achieved by this kind of architectures are surprising, on the other their usability is limited by the high number of parameters which constitute their network, resulting in high computational and memory demands. In this work we present BERTino, a DistilBERT model which proposes to be the first lightweight alternative to the BERT architecture specific for the Italian language. We evaluated BERTino on the Italian ISDT, Italian ParTUT, Italian WikiNER and multiclass classification tasks, obtaining F1 scores comparable to those obtained by a BERTBASE with a remarkable improvement in training and inference speed.
description: 5 pages
Single quantum emitters with spin ground states based on Cl bound excitons in ZnSe
Creators: name: Karasahin, Aziz
name: Pettit, Robert M.
name: Driesch, Nils von den
name: Jansen, Marvin Marco
name: Pawlis, Alexander
name: Waks, Edo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Defects in wide-bandgap semiconductors are promising qubit candidates for quantum communication and computation. Epitaxially grown II-VI semiconductors are particularly promising host materials due to their direct bandgap and potential for isotopic purification to a spin-zero nuclear background. Here, we show a new type of single photon emitter with potential electron spin qubit based on Cl impurities in ZnSe. We utilize a quantum well to increase the binding energies of donor emission and confirm single photon emission with short radiative lifetimes of 192 ps. Furthermore, we verify that the ground state of the Cl donor complex contains a single electron by observing two-electron satellite emission, leaving the electron in higher orbital states. We also characterize the Zeeman splitting of the exciton transition by performing polarization-resolved magnetic spectroscopy on single emitters. Our results suggest single Cl impurities are suitable as single photon source with potential photonic interface.
description: 7 pages, 6 figures
The survey of planetary nebulae in Andromeda (M31). IV. Radial oxygen and argon abundance gradients of the thin and thicker disc
Creators: name: Bhattacharya, Souradeep
name: Arnaboldi, Magda
name: Caldwell, Nelson
name: Gerhard, Ortwin
name: Kobayashi, Chiaki
name: Hartke, Johanna
name: Freeman, Kenneth C.
name: McConnachie, Alan W.
name: Guhathakurta, Puragra
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We obtain a magnitude-limited sample of Andromeda (M 31) disc PNe with chemical abundance estimated through the direct detection of the [OIII] 4363 $\mathring{\mathrm A}$ line. This leads to $205$ and $200$ PNe with oxygen and argon abundances respectively. We find that high- and low-extinction M 31 disc PNe have statistically distinct argon and oxygen abundance distributions. In the radial range $2-30$ kpc, the older low-extinction disc PNe are metal-poorer on average with a slightly positive radial oxygen abundance gradient ($0.006 \pm 0.003$ dex/kpc) and slightly negative for argon ($-0.005 \pm 0.003$ dex/kpc), while the younger high-extinction disc PNe are metal-richer on average with steeper radial abundance gradients for both oxygen ($-0.013 \pm 0.006$ dex/kpc) and argon ($-0.018 \pm 0.006$ dex/kpc), similar to the gradients computed for the M 31 HII regions. The M 31 disc abundance gradients are consistent with values computed from major merger simulations, with the majority of the low-extinction PNe being the older pre-merger disc stars in the thicker disc, and the majority of the high-extinction PNe being younger stars in the thin disc, formed during and after the merger event. The chemical abundance of the M 31 thicker disc has been radially homogenized because of the major merger. Accounting for disc scale-lengths, the positive radial oxygen abundance gradient of the M 31 thicker disc is in sharp contrast to the negative one of the MW thick disc. However, the thin discs of the MW and M 31 have remarkably similar negative oxygen abundance gradients.
description: 13 pages, 13 figures, 5 tables (3 pages, 6 figures and 1 table in appendix), accepted for publication in MNRAS
A study of Reservoir Connectivity in the Platong Field, Pattani Basin, Gulf of Thailand
Creators: name: Hathairat Roenthon
Publisher: name: Department of Geology, Chulalongkorn University
Year: 2013
Subjects: Platong Field, Reservoir connectivity, Water disposal wells, Pressure transmission

description: Bulletin of Earth Sciences of Thailand (BEST), 6, 2, 40-49
FFT based evaluation of microlensing magnification with extended source
Creators: name: Sugiyama, Sunao
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The extended source effect on microlensing magnification is non-negligible and must be taken into account for in an analysis of microlensing. However, the evaluation of the extended source magnification is numerically expensive because it includes the two-dimensional integral over source profile. Various studies have developed methods to reduce this integral down to the one-dimensional-integral or integral-free form, which adopt some approximations or depend on the exact form of the source profile, e.g. disk, linear/quadratic limb-darkening profile. In this paper, we develop a new method to evaluate the extended source magnification based on fast Fourier transformation (FFT), which does not adopt any approximations and is applicable to any source profiles. Our implementation of the FFT based method enables the fast evaluation of the extended source magnification as fast as $\sim1$ msec (CPU time on a laptop) and guarantees an accuracy better than 0.3%. The FFT based method can be used for the template fitting to a huge data set of light curves from the existing and upcoming surveys.
description: 9 pages, 6 figures; Preparing for submission to ApJ; Code available at https://github.com/git-sunao/fft-extended-source
The Effect of Molecular Cloud Properties on the Kinematics of Stars Formed in the Trifid Region
Creators: name: Kuhn, Michael A.
name: Hillenbrand, Lynne A.
name: Feigelson, Eric D.
name: Fowler, Ian
name: Getman, Konstantin V.
name: Broos, Patrick S.
name: Povich, Matthew S.
name: Gromadzki, Mariusz
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The dynamical states of molecular clouds may affect the properties of the stars they form. In the vicinity of the Trifid Nebula ($d=1180\pm25$ pc), the main star cluster (Trifid Main) lies within an expanding section of the molecular cloud; however, ~0.3 deg to the north (Trifid North), the cloud's velocity structure is more tranquil. We acquired a Chandra X-ray observation to identify pre-main-sequence stars in Trifid North, complementing a previous observation of Trifid Main. In Trifid North, we identified 51 candidate pre-main-sequence stars, of which 13 are high-confidence Trifid members based on Gaia EDR3 parallaxes and proper motions. We also re-analyzed membership of Trifid Main and separated out multiple background stellar associations. Trifid North represents a stellar population ~10% as rich as Trifid Main that formed in a separate part of the cloud. The 1D stellar velocity dispersion in Trifid North ($0.6\pm0.2$ km/s) is three times lower than in Trifid Main ($1.9\pm0.2$ km/s). Furthermore, in Trifid Main, proper motions indicate that the portion of the star cluster superimposed on the optical nebula is expanding. Expansion of the HII region around the O-star HD 164492A, and the resulting gas expulsion, can explain both the motions of the stars and gas in Trifid Main. Contrary to previous studies, we find no evidence that a cloud-cloud collision triggered star formation in the region.
description: Accepted for publication in ApJ. 26 pages, 18 figures, and 4 tables. Minor style changes have been applied to match the published version
On angular momentum balance for particle systems with periodic boundary conditions
Creators: name: Kuzkin, Vitaly A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: The well-known issue with the absence of conservation of angular momentum in classical particle systems with periodic boundary conditions is addressed. It is shown that conventional theory based on Noether's theorem fails to explain the simplest possible example, notably jumps of angular momentum in the case of single particle moving in a periodic cell. It is suggested to consider the periodic cell as an open system, exchanging mass, momentum, angular momentum, and energy with surrounding cells. Then the behavior of the cell is described by balance laws rather than conservation laws. It is shown using the law of angular momentum balance that the variation of the angular momentum in systems with periodic boundary conditions is a consequence of (i) the non-zero flux of angular momentum through the boundaries and (ii) torque acting on the cell due to the interactions between particles in the cell with images in the neighboring cells. Two simple examples demonstrating both phenomena are presented.
description: Keywords: angular momentum, periodic boundary conditions, open systems, balance laws, conservation laws, Noether theorem
Diagenetic Evolution of "Buried-Hill" Carbonate Reservoir Analogs in Outcropping Permian Carbonates, Saraburi Province, Thailand
Creators: name: Jakkrich Yingyuen
Publisher: name: Department of Geology, Chulalongkorn University
Year: 2013
Subjects: Mass Transport Complex

description: Bulletin of Earth Sciences of Thailand (BEST), 6, 2, 50-62
Probing the proton structure with associated vector boson and heavy flavor jet production at the LHC
Creators: name: Lipatov, A. V.
name: Lykasov, G. I.
name: Malyshev, M. A.
name: Turchikhin, S. M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the production of $Z$ bosons associated with heavy (charm and beauty) jets at the LHC energies using two scenarios based on the transverse momentum dependent (TMD) parton densities in a proton. The first of them employs the Catani-Ciafaloni-Fiorani-Marchesini gluon evolution and is implemented in the Monte-Carlo event generator PEGASUS. Here, the heavy quarks are always produced in the hard partonic scattering. The second scheme is based on the parton branching approach, currently implemented into the Monte-Carlo event generator CASCADE. In this scenario, the $Z$ + jets sample is generated and then events containing the heavy flavor jet in a final state are selected. We compare the predictions obtained within these two TMD-based approaches to each other, investigate their sensitivity to the TMD gluon densities in a proton and estimate the effects coming from parton showers and double parton scattering mechanism. Additionally, we compare our predictions with the results of traditional (collinear) pQCD calculations performed at NLO accuracy. It is shown that the TMD-based results agree with the LHC experimental data collected at $\sqrt s = 8$ and $13$ TeV. We discuss the sensitivity of observables to the quark distributions in a proton and present predictions to search for the intrinsic charm signal in forthcoming analyses of the LHC experimental data.
description: 15 pages, 5 figures
title: Single-Cell Cortical Transcriptomics Reveals Common and Distinct Pathway Activity Signatures in Alzheimer’s and Parkinson’s Disease
Creators: name: Sophie Le Bars
name: Enrico Glaab
Publisher: name: LCSB
Year: 2023

description: Neurodegenerative disorders, including the two most prevalent, Alzheimer’s disease (AD) and Parkinson’s disease (PD), are characterized by pronounced neuronal loss and significant deterioration in quality of life. While AD and PD exhibit many distinct neuropathological symptoms and clinical manifestations, they also share common molecular features and comorbidities, such as mitochon- drial dysfunction and progressive cognitive decline. To uncover conserved and unique disease pathways, we performed a comparative single-cell transcriptomic analysis of post-mortem cortical tissue from AD, PD and matched healthy con- trols. We characterized shared and distinct cell-type-specific features at the level of individual genes, pathways, and cellular sub-networks, identifying common coordinated changes that may reflect shared susceptibility mechanisms and sig- natures of discriminative molecular markers. The results confirm the presence of disease-specific, shared, and oppositely-regulated differentially expressed genes across multiple cell types, including unique cell-type-specific disease marker genes. Shared significant genes were over-represented in processes associated with the regulation of nervous system development, axon growth, and the Wnt signal- ing pathway. Cell-type specific gene regulatory network analyses also highlighted putative target genes regulating shared disease pathways, such as TCF7L2 as a modulator of Wnt signaling in astrocytes. Overall, our study reveals conserved and unique gene signatures, pathways, and regulatory sub-networks in AD and PD. The findings offer insights into molecular commonalities and differences in these diseases and the regulation of coordinated pathway activity alterations, guiding future diagnostic and therapeutic strategies.
Keywords: Single-Cell Cortical Transcriptomics Reveals Common and Distinct Pathway Activity Signatures in Alzheimer’s and Parkinson’s Disease
Decoherence predictions in a superconductive quantum device using the steepest-entropy-ascent quantum thermodynamics framework
Creators: name: Montanez-Barrera, J. A.
name: von Spakovsky, M. R.
name: Damian-Ascencio, C. E.
name: Cano-Andrade, S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Applied Physics (physics.app-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: The current stage of quantum computing technology, called noisy intermediate-scale quantum (NISQ) technology, is characterized by large errors that prohibit it from being used for real applications. In these devices, decoherence, one of the main sources of error, is generally modeled by Markovian master equations such as the Lindblad master equation. In this work, the decoherence phenomena are addressed from the perspective of the steepest-entropy-ascent quantum thermodynamics (SEAQT) framework in which the noise is in part seen as internal to the system. The framework is as well used to describe changes in the energy associated with environmental interactions. Three scenarios, an inversion recovery experiment, a Ramsey experiment, and a two-qubit entanglement-disentanglement experiment, are used to demonstrate the applicability of this framework, which provides good results relative to the experiments and the Lindblad equation, It does so, however, from a different perspective as to the cause of the decoherence. These experiments are conducted on the IBM superconductive quantum device ibmq_bogota.
description: 11 pages, 8 figures
MAGNNETO: A Graph Neural Network-based Multi-Agent system for Traffic Engineering
Creators: name: Bernárdez, Guillermo
name: Suárez-Varela, José
name: López, Albert
name: Shi, Xiang
name: Xiao, Shihan
name: Cheng, Xiangle
name: Barlet-Ros, Pere
name: Cabellos-Aparicio, Albert
Publisher: name: arXiv
Year: 2023
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Machine Learning (cs.LG)
subject: Multiagent Systems (cs.MA)
subject: FOS: Computer and information sciences

description: Current trends in networking propose the use of Machine Learning (ML) for a wide variety of network optimization tasks. As such, many efforts have been made to produce ML-based solutions for Traffic Engineering (TE), which is a fundamental problem in ISP networks. Nowadays, state-of-the-art TE optimizers rely on traditional optimization techniques, such as Local search, Constraint Programming, or Linear programming. In this paper, we present MAGNNETO, a distributed ML-based framework that leverages Multi-Agent Reinforcement Learning and Graph Neural Networks for distributed TE optimization. MAGNNETO deploys a set of agents across the network that learn and communicate in a distributed fashion via message exchanges between neighboring agents. Particularly, we apply this framework to optimize link weights in OSPF, with the goal of minimizing network congestion. In our evaluation, we compare MAGNNETO against several state-of-the-art TE optimizers in more than 75 topologies (up to 153 nodes and 354 links), including realistic traffic loads. Our experimental results show that, thanks to its distributed nature, MAGNNETO achieves comparable performance to state-of-the-art TE optimizers with significantly lower execution times. Moreover, our ML-based solution demonstrates a strong generalization capability to successfully operate in new networks unseen during training.
description: IEEE Transactions on Cognitive Communications and Networking (2023). arXiv admin note: text overlap with arXiv:2109.01445
The Number Density of Quiescent Compact Galaxies at Intermediate Redshift
Creators: name: Damjanov, Ivana
name: Hwang, Ho Seong
name: Geller, Margaret J.
name: Chilingarian, Igor
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Massive compact systems at 0.2
description: 16 pages, 7 figures, 3 tables. Accepted for publication in the Astrophysical Journal on July 17
Anomalous fluctuations of renewal-reward processes with heavy-tailed distributions
Creators: name: Horii, Hiroshi
name: Lefevere, Raphael
name: Itami, Masato
name: Nemoto, Takahiro
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: For renewal-reward processes with a power-law decaying waiting time distribution, anomalously large probabilities are assigned to atypical values of the asymptotic processes. Previous works have reveals that this anomalous scaling causes a singularity in the corresponding large deviation function. In order to further understand this problem, we study in this article the scaling of variance in several renewal-reward processes: counting processes with two different power-law decaying waiting time distributions and a Knudsen gas (a heat conduction model). Through analytical and numerical analyses of these models, we find that the variances show an anomalous scaling when the exponent of the power law is -3. For a counting process with the power-law exponent smaller than -3, this anomalous scaling does not take place: this indicates that the processes only fluctuate around the expectation with an error that is compatible with a standard large deviation scaling. In this case, we argue that anomalous scaling appears in higher order cumulants. Finally, many-body particles interacting through soft-core interactions with the boundary conditions employed in the Knudsen gas are studied using numerical simulations. We observe that the variance scaling becomes normal even though the power-law exponent in the boundary conditions is -3.
description: discussion of the anomalous fluctuations with memory effects
Fashion Archives in the Digital Era: the PuntoArt srl  Case History
Creators: name: Bruschi, Samanta
name: Ravara Montebelli, Cristina
Publisher: name: Almatourism - Journal of Tourism, Culture and Territorial Development
Year: 2018

description: Almatourism - Journal of Tourism, Culture and Territorial Development, Vol 9, No 9 (2018): S.I. Fashion between Heritage and Tourism
Fashion Luxury Retail and How it Shapes a City – The Case of São Paulo, Rio de Janeiro and Brasília, Brazil
Creators: name: Fontes De Bulnes, Bruna Angelica
name: Araújo Sobrinho, Fernando Luiz
Publisher: name: Almatourism - Journal of Tourism, Culture and Territorial Development
Year: 2018
Subjects: Urban Geography; Luxury; Brazil; São Paulo; Rio de Janeiro

description: Almatourism - Journal of Tourism, Culture and Territorial Development, Vol 9, No 9 (2018): S.I. Fashion between Heritage and Tourism
Different Types of Organic-Rich Geological Markers in the Sub-Surface in the North Pailin Field, Pattani Basin, Gulf of Thailand
Creators: name: Jirach Kamvan
Publisher: name: Department of Geology, Chulalongkorn University
Year: 2013
Subjects: Trangressive marine shale, Non-marine coal, Mangrove coaly shale

description: Bulletin of Earth Sciences of Thailand (BEST), 6, 2, 63-68
Creative Cultural Tourism for Namibia: Opportunities and Challenges
Creators: name: Green, Isobel
name: Sheyapo, Miriam
Publisher: name: Almatourism - Journal of Tourism, Culture and Territorial Development
Year: 2018
Subjects: Namibia; Creativity; Cultural Tourism; Opportunities; Challenges; Diversification

description: Almatourism - Journal of Tourism, Culture and Territorial Development, Vol 9, No 9 (2018): S.I. Fashion between Heritage and Tourism
Quantitative Seismic Geomorphology of Early Miocene to Pleistocene Fluvial System of Northern Songkhla Basin, Gulf of Thailand
Creators: name: Tran, Oanh Thi
Publisher: name: Department of Geology, Chulalongkorn University
Year: 2013
Subjects: Songkhla basin, Quantitative seismic geomophology, fluvial system

description: Bulletin of Earth Sciences of Thailand (BEST), 6, 2, 80-88
Creative Industries as a Stimulant for Tourism Growth in Zimbabwe – a Critical Interjection
Creators: name: Woyo, Erisher
name: Woyo, Edith
Publisher: name: Almatourism - Journal of Tourism, Culture and Territorial Development
Year: 2018
Subjects: Special Interest Tourism; Arts And Culture Sector; Creative Industries; Tourism Growth

description: Almatourism - Journal of Tourism, Culture and Territorial Development, Vol 9, No 9 (2018): S.I. Fashion between Heritage and Tourism
Prospects for reconstructing the gravitational-wave signals from core-collapse supernovae with Advanced LIGO-Virgo and the BayesWave algorithm
Creators: name: Raza, Nayyer
name: McIver, Jess
name: Dálya, Gergely
name: Raffai, Peter
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Our current understanding of the core-collapse supernova explosion mechanism is incomplete, with multiple viable models for how the initial shock wave might be energized enough to lead to a successful explosion. Detection of a gravitational-wave signal emitted in the initial few seconds after stellar core-collapse would provide unique and crucial insight into this process. With the Advanced LIGO and Advanced Virgo detectors expected to approach their design sensitivities soon, we could potentially detect this signal from a supernova within our galaxy. In anticipation of such a scenario, we study how well the BayesWave algorithm can recover the gravitational-wave signal from core-collapse supernova models in simulated advanced detector noise, and optimize its ability to accurately reconstruct the signal waveforms. We find that BayesWave can confidently reconstruct the signal from a range of supernova explosion models in Advanced LIGO-Virgo for network signal-to-noise ratios $\gtrsim 30$, reaching maximum reconstruction accuracies of $\sim 90\%$ at SNR $\sim 100$. For low SNR signals that are not confidently recovered, our optimization efforts result in gains in reconstruction accuracy of up to $20-40\%$, with typical gains of $\sim 10\%$.
description: 18 pages, 8 figures, submitted to Phys. Rev. D
The Role of Tourism Destinations within the Online Presence of Fashion Weeks
Creators: name: Kalbaska, Nadzeya
name: Ayala Ramírez, Estefanía
name: Cantoni, Lorenzo
Publisher: name: Almatourism - Journal of Tourism, Culture and Territorial Development
Year: 2018
Subjects: Destination branding; Tourism marketing; Fashion weeks; Event management; Website design; Digital fashion

description: Special events, if well organized, assist a tourism destination to improve its image and to attract new visitors. Though there is an emerging research on the connection between tourism destinations and fashion events, very few is known about how online presence of tourism destinations is framed with the help of established fashion events.

The purpose of this research is to study four primary destinations holding their respective major fashion weeks accordingly: New York and “New York Fashion Week”, London and “London Fashion Week”, Milan and “Milan Fashion Week”, Paris and “Paris Fashion Week”.

This research identifies the role of tourism destinations in the online presence of the four primary “fashion weeks”. To do so, two converging analyzes are done: on one hand, the websites and online presence of the fashion weeks are analyzed, to assess tourism related content; on the other hand, the websites of Destination Management Organizations at the city level are inspected, to assess the presence and relevance they provide to fashion weeks.
description: Almatourism - Journal of Tourism, Culture and Territorial Development, Vol 9, No 9 (2018): S.I. Fashion between Heritage and Tourism
Magnetic field-Temperature Phase Diagram of CeCoSi Constructed by Specific Heat, Magnetoresistivity, and Magnetization Measurements for a Single Crystal
Creators: name: Hidaka, Hiroyuki
name: Yanagiya, Shun
name: Hayasaka, Eikai
name: Kaneko, Yuma
name: Yanagisawa, Tatsuya
name: Tanida, Hiroshi
name: Amitsuka, Hiroshi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A Ce-based metallic compound CeCoSi with a tetragonal structure exhibits successive phase transitions: the one whose order parameter is unidentified at T_0 = 12 K and the antiferromagnetic one at T_N = 9.4 K. We performed specific heat, magnetoresistivity (MR), and magnetization measurements for a single crystal CeCoSi at low temperatures in magnetic fields B of up to 14 T and constructed detailed magnetic field--temperature phase diagrams for both B || [100] and [001]. The longitudinal MR measured for B || [100] shows a sign change from negative to positive across T_0 = 13 K updated in the present sample, indicating a clear change in an electronic state. In addition, the constructed magnetic phase diagrams for both the field directions have a B-induced region in each ordered state. The presence of the newly found regions would be attributed to a change in the symmetry of the order parameter or domain alignment by applying B.
A proposed test of quantum mechanics with three connected atomic clock transitions
Creators: name: Raizen, Mark G.
name: Gilbert, Gerald
name: Budker, Dmitry
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We consider possible extensions to quantum mechanics proposed by Steven Weinberg, and re-analyze his prediction of a new test based upon three atomic clocks in the same atom. We propose realistic experimental systems where this hypothesis can be tested. Two systems already set limits on deviations from quantum mechanics, while with another system, one would be able to search for new physics at the limit of sensitivity of the best atomic clocks.
description: 4 pages, 3 figures
Unconventional Quantum Electrodynamics with Hofstadter-Ladder Waveguide
Creators: name: Wang, Xin
name: Gao, Zhao-Min
name: Li, Jia-Qi
name: Zhu, Huai-Bing
name: Li, Hong-Rong
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a novel quantum electrodynamics (QED) platform where quantum emitters interact with a Hofstadter-ladder waveguide. We demonstrate several intriguing phenomena stemming from the exotic dispersion relation and vacuum mode properties led by the effective spin-orbit coupling, which have no analog in other QED setups. First, by assuming emitter's frequency to be resonant with the lower band, we find that the spontaneous emission is chiral with most photonic field decaying unidirectionally. Both numerical and analytical results indicate that the Hofstadter-ladder waveguide can be engineered as a well-performed chiral quantum bus. Second, the dynamics of emitters of giant atom form is explored by considering their frequencies below the lower band. Due to quantum interference, we find that both the emitter-waveguide interaction and the amplitudes of bound states are periodically modulated by giant emitter's size. The periodical length depends on the positions of energy minima points induced by the spin-orbit coupling. Last, we consider the interaction between two giant emitters mediated by bound states, and find that their dipole-dipole interaction vanishes (is enhanced) when maximum destructive (constructive) interference happens.
description: 13 pages; 8 figures
Antiferromagnetic helix as an efficient spin polarizer: Interplay between electric field and higher ordered hopping
Creators: name: Gupta, Debjani Das
name: Maiti, Santanu K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We report spin filtration operation considering an antiferromagnetic helix system, possessing zero net magnetization. Common wisdom suggests that for such a system, a spin-polarized current is no longer available from a beam of unpolarized electrons. But, once we apply an electric field perpendicular to the helix axis, a large separation between up and down spin energy channels takes place which yields a high degree of spin polarization. Such a prescription has not been reported so far to the best of our concern. Employing a tight-binding framework to illustrate the antiferromagnetic helix, we compute spin filtration efficiency by determining spin selective currents using Landauer-Büttiker formalism. Geometrical conformation plays an important role in spin channel separation, and here we critically investigate the effects of short-range and long-range hoppings of electrons in presence of the electric field. We find that the filtration performance gets improved with increasing the range of hopping of electrons. Moreover, the phase of spin polarization can be altered selectively by changing the strength and direction of the electric field, and also by regulating the physical parameters that describe the antiferromagnetic helix. Finally, we explore the specific role of dephasing, to make the system more realistic and to make the present communication a self-contained one. Our analysis may provide a new route of getting conformation-dependent spin polarization possessing longer range hopping of electrons, and can be generalized further to different kinds of other fascinating antiferromagnetic systems.
description: 12 pages, 11 figures (Accepted for publication in Physical Review B)
Using Common Data Elements to Foster Interoperability of Research on Health Disparities
Creators: name: Chenoweth, Megan
name: Kubale, John
name: McNally, James
Publisher: name: Zenodo
Year: 2023
Subjects: Data management and archiving
Common Data Elements
COVID-19

description: Common Data Elements (CDEs) are standardized questions, variables, or measures with specific sets of responses that are common across multiple studies. They are organized around a particular research topic or question, validated, and defined via a consensus building process. Their use fosters comparability of results and findings across studies. Defining CDEs and incorporating them at the data collection/creation stage promotes good data management practices by ensuring the interoperability and reusability of data from the beginning of the research data lifecycle. CDEs are more common in NIH-funded clinical and biomedical research than in social, behavioral, and economic (SBE) research. Yet the community-driven, consensus-building approach to defining CDEs makes them well suited to measuring complex social phenomena, such as race and gender. Not only do CDEs offer both a repository of established measures, they also offer a mechanism for the research community to define new measures that reflect expanding knowledge and shifting identities. For example, as concepts of race and gender change over time and in different contexts, researchers can establish new CDEs to reflect those changes. This characteristic of CDEs – their flexibility and consensus-driven nature – has the potential to strengthen research on diverse populations. The Social, Behavioral, and Economic COVID Coordinating Center at ICPSR (SBE CCC) is leading the effort to establish CDEs for SBE research into the effects of the COVID-19 pandemic. We are collaborating with fifteen NIH-funded research teams who are examining pandemic-related health disparities related to race, ethnicity, sex, geography, income, and other factors. This talk will describe our process for identifying, validating, and building consensus on CDEs related to COVID public health policies. We will also discuss plans to establish additional CDEs for COVID research, and to use SBE research on COVID-19 to illustrate how CDEs can improve harmonization across social science research.
A Closer Look at Few-Shot 3D Point Cloud Classification
Creators: name: Ye, Chuangguan
name: Zhu, Hongyuan
name: Zhang, Bo
name: Chen, Tao
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In recent years, research on few-shot learning (FSL) has been fast-growing in the 2D image domain due to the less requirement for labeled training data and greater generalization for novel classes. However, its application in 3D point cloud data is relatively under-explored. Not only need to distinguish unseen classes as in the 2D domain, 3D FSL is more challenging in terms of irregular structures, subtle inter-class differences, and high intra-class variances {when trained on a low number of data.} Moreover, different architectures and learning algorithms make it difficult to study the effectiveness of existing 2D FSL algorithms when migrating to the 3D domain. In this work, for the first time, we perform systematic and extensive investigations of directly applying recent 2D FSL works to 3D point cloud related backbone networks and thus suggest a strong learning baseline for few-shot 3D point cloud classification. Furthermore, we propose a new network, Point-cloud Correlation Interaction (PCIA), with three novel plug-and-play components called Salient-Part Fusion (SPF) module, Self-Channel Interaction Plus (SCI+) module, and Cross-Instance Fusion Plus (CIF+) module to obtain more representative embeddings and improve the feature distinction. These modules can be inserted into most FSL algorithms with minor changes and significantly improve the performance. Experimental results on three benchmark datasets, ModelNet40-FS, ShapeNet70-FS, and ScanObjectNN-FS, demonstrate that our method achieves state-of-the-art performance for the 3D FSL task. Code and datasets are available at https://github.com/cgye96/A_Closer_Look_At_3DFSL.
description: Accepted by IJCV 2023
Front propagation in cellular flows for fast reaction and small diffusivity
Creators: name: Tzella, Alexandra
name: Vanneste, Jacques
Publisher: name: arXiv
Year: 2014
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We investigate the influence of fluid flows on the propagation of chemical fronts arising in FKPP type models. We develop an asymptotic theory for the front speed in a cellular flow in the limit of small molecular diffusivity and fast reaction, i.e., large Péclet ($Pe$) and Damköhler ($Da$) numbers. The front speed is expressed in terms of a periodic path -- an instanton -- that minimizes a certain functional. This leads to an efficient procedure to calculate the front speed, and to closed-form expressions for $(\log Pe)^{-1}\ll Da\ll Pe$ and for $Da\gg Pe$. Our theoretical predictions are compared with (i) numerical solutions of an eigenvalue problem and (ii) simulations of the advection--diffusion--reaction equation.
On the Theoretical Foundation of Overset Grid Methods for Hyperbolic Problems II: Entropy Bounded Formulations for Nonlinear Conservation Laws
Creators: name: Kopriva, David A.
name: Gassner, Gregor J.
name: Nordstrom, Jan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65N85

description: We derive entropy conserving and entropy dissipative overlapping domain formulations for systems of nonlinear hyperbolic equations in conservation form, such as would be approximated by overset mesh methods. The entropy conserving formulation imposes two-way coupling at the artificial interface boundaries through nonlinear penalty functions that vanish when the solutions coincide. The penalty functions are expressed in terms of entropy conserving fluxes originally introduced for finite volume schemes. Entropy dissipation and additional coupling in the overlap region are added through the use of linear penalties.
Investigation of Persian Handmade Carpet Brand Positioning in View of European Customer
Creators: name: Shafiee RoodPoshti, Maysam
name: Davoodi, Zahra
Publisher: name: Almatourism - Journal of Tourism, Culture and Territorial Development
Year: 2018
Subjects: Brand Management, Brand Positioning, Persian Handmade Carpet, European customers

description: The handmade carpet industry has a long lifetime in Iran. It was as one of important and key industries in some provinces for far decades, such that must of our export goods was carpets and rugs before oil discovery. However, handmade Persian carpet has the top position in global world market yet. Thus, this work tries to investigate the brand position of handmade Persian carpet from view of point of European customers. The research method is operational as goal. Statistical population of this research includes elites of branding and marketing of handmade carpet production in qualitative phase, and tourists and customers of some European countries in quantitative phase. Sampling method in the quantitative phase is proportional to the size of the population and based on the Cochran formula, about 384 persons were selected. The handmade carpet industry has a long lifetime in our country. It was as one of important and key industries in some provinces for far decades, such that must of our export goods was carpets and rugs before oil discovery. However, handmade Persian carpet has the top position in global world market yet. Thus, this work tries to investigate the brand position of handmade Persian carpet from view of point of European customers. The research method is operational as goal. Statistical population of this research includes elites of branding and marketing of handmade carpet production in qualitative phase, and tourists and customers of some European countries in quantitative phase. Sampling method in the quantitative phase is proportional to the size of the population and based on the Cochran formula, about 384 persons were selected.
description: Almatourism - Journal of Tourism, Culture and Territorial Development, Vol 9, No 9 (2018): S.I. Fashion between Heritage and Tourism
Exploring the Fashion Visiting Experience: a Content Analysis about the “Boncompagni Ludovisi Museum”
Creators: name: Evangelista, Valentina
name: Ferrari, Fabrizio
Publisher: name: Almatourism - Journal of Tourism, Culture and Territorial Development
Year: 2018
Subjects: Fashion Tourism; Tourism Experience; Boncompagni Ludovisi; Content Analysis; Policies

description: Fashion represents a multi-disciplinary and to some extent a cross-disciplinary field of research, spanning economic and industry studies, cultural, heritage and sociological research, geographical and tourism reflections.
Fashion is a hallmark of Italian exports: through the fashion products, Italy exports its outstanding sense of beauty and aesthetics, the artisanal manufacturing expertise and a certain artistic value. Furthermore, fashion characterizes the cultural and touristic image of Italy, affecting and/or enriching the tourists’ experience.
The aim of the work is exploring the experience of visitors of the “Boncompagni Ludovisi Decorative Art Museum” in Rome, through a content analysis of the posts published on the Facebook Official Page and the reviews shared on TripAdvisor.
More in details, after a literature review about the ‘museification’ trends in the fashion tourism, the work will deeply explore through a content analysis the several dimensions of post visiting experience, in order to understand the mutual roles of core attractions (collections and location’s architecture) and museum’s quality of welcome.
Tourism management and policy’s implications will be discussed.
description: Almatourism - Journal of Tourism, Culture and Territorial Development, Vol 9, No 9 (2018): S.I. Fashion between Heritage and Tourism
Covering all but the low weight vertices of the unit cube
Creators: name: Sziklai, Peter
name: Weiner, Zsuzsa
Publisher: name: arXiv
Year: 2023
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: In this paper we discuss a result similar to the polynomial version of the Alon-Füredi theorem. We prove that if you want to cover the vertices of the $n$-dimensional unit cube, except those of weight at most $r$ then you need an algebraic surface of degree at least $n-r$.
description: 5 pages, published
The Milky Way as a Star Formation Engine
Creators: name: Molinari, Sergio
name: Bally, John
name: Glover, Simon
name: Moore, Toby
name: Noriega-Crespo, Alberto
name: Plume, René
name: Testi, Leonardo
name: Vázquez-Semadeni, Enrique
name: Zavagno, Annie
name: Bernard, Jean-Philippe
name: Martin, Peter
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The cycling of material from the interstellar medium (ISM) into stars and the return of stellar ejecta into the ISM is the engine that drives the "galactic ecology" in normal spirals, a cornerstone in the formation and evolution of galaxies through cosmic time. Major observational and theoretical challenges need to be addressed in determining the processes responsible for converting the low-density ISM into dense molecular clouds, forming dense filaments and clumps, fragmenting them into stars, OB associations and bound clusters, and characterizing the feedback that limits the rate and efficiency of star formation. This formidable task can be now effectively attacked thanks to the combination of new global-scale surveys of the Milky Way Galactic Plane from infrared to radio wavelengths, offering the possibility of bridging the gap between local and extragalactic star formation studies. The Herschel, Spitzer and WISE mid to far infrared continuum surveys, complemented by analogue surveys from ground-based facilities in the millimetre and radio wavelengths, enables us to measure the Galactic distribution and physical properties of dust on all scales and in all components of the ISM from diffuse clouds to filamentary complexes and tens of thousands of dense clumps. A complementary suite of spectroscopic surveys in various atomic and molecular tracers is providing the chemical fingerprinting of dense clumps and filaments, as well as essential kinematic information to derive distances and thus transform panoramic data into a 3D representation. The latest results emerging from these Galaxy-scale surveys are reviewed. New insights into cloud formation and evolution, filaments and their relationship to channeling gas onto gravitationally-bound clumps, the properties of these clumps, density thresholds for gravitational collapse, and star and cluster formation rates are discussed.
description: Accepted for publication as a chapter in Protostars and Planets VI, University of Arizona Press (2014), eds. H. Beuther, R. Klessen, C. Dullemond, Th. Henning (minor text revisions, plus updated figure 11)
Creating New Touristic Fashion Routes with Caravanserais on the Ancient Silk Road in Turkey
Creators: name: Polat, Naci
Publisher: name: Almatourism - Journal of Tourism, Culture and Territorial Development
Year: 2018
Subjects: Caravanserais; UNESCO World Heritage Tentative List; Touristic Fashion Routes

description: Almatourism - Journal of Tourism, Culture and Territorial Development, Vol 9, No 9 (2018): S.I. Fashion between Heritage and Tourism