cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Additional file 3 of Enhanced anti-inflammatory effects of mesenchymal stromal cells mediated by the transient ectopic expression of CXCR4 and IL10
Creators: name: Hervás-Salcedo, Rosario
name: Fernández-García, María
name: Hernando-Rodríguez, Miriam
name: Quintana-Bustamante, Oscar
name: Jose-Carlos Segovia
name: Alvarez-Silva, Marcio
name: García-Arranz, Mariano
name: Minguez, Pablo
name: Pozo, Victoria Del
name: Alba, Marta Rodríguez De
name: García-Olmo, Damián
name: Ayuso, Carmen
name: Lamana, María Luisa
name: Bueren, Juan A.
name: Yañez, Rosa María
Publisher: name: figshare
Year: 2021
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 3: Figure S3. Morphology, differentiation capacity and genome-wide expression analyses of Ad-MSCs transfected with CXCR4-IL10 mRNAs. (A) Plastic adherence and characteristic spindle-shaped and fibroblastic-like morphology of WT and mRNA-transfected Ad-MSCs observed by light microscopy (Bar = 100 μm). (B) In vitro osteogenic differentiation of WT and mRNA-transfected Ad-MSCs analyzed 10 days after incubation with specific osteogenic differentiation medium. Alkaline phosphatase deposits were observed by light microscopy after staining with Fast BCIP/NCP (Bar = 100μm). (C) In vitro adipogenic differentiation of WT and mRNA-transfected Ad-MSCs after 21 days of culture with the specific adipogenic differentiation medium. Lipid droplets were noted by light microscopy (Bar=100μm). (D) Gene expression of the osteogenic alkaline phosphatase (ALPL) and osteocalcin (bone gamma-carboxyglutamic acid-containing protein; BGLAP) markers determined by RT-qPCR. (E) Gene expression of the adipogenic peroxisome proliferator-activated receptor gamma (PPARG) marker quantified by RT-qPCR. (F) KEGG pathways over-represented in CXCR4-IL10-mRNA transfected Ad-MSCs compared to WT-MSCs. (G) Gene Ontology top 25 biological processes over-represented in CXCR4-IL10-MSCs compared to WT-MSCs. Terms are sorted by –log (FDR). The color intensity indicates the percentage of genes annotated with a particular term in the list of up-regulated genes.
Fair Representation: Guaranteeing Approximate Multiple Group Fairness for Unknown Tasks
Creators: name: Shen, Xudong
name: Wong, Yongkang
name: Kankanhalli, Mohan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Motivated by scenarios where data is used for diverse prediction tasks, we study whether fair representation can be used to guarantee fairness for unknown tasks and for multiple fairness notions simultaneously. We consider seven group fairness notions that cover the concepts of independence, separation, and calibration. Against the backdrop of the fairness impossibility results, we explore approximate fairness. We prove that, although fair representation might not guarantee fairness for all prediction tasks, it does guarantee fairness for an important subset of tasks -- the tasks for which the representation is discriminative. Specifically, all seven group fairness notions are linearly controlled by fairness and discriminativeness of the representation. When an incompatibility exists between different fairness notions, fair and discriminative representation hits the sweet spot that approximately satisfies all notions. Motivated by our theoretical findings, we propose to learn both fair and discriminative representations using pretext loss which self-supervises learning, and Maximum Mean Discrepancy as a fair regularizer. Experiments on tabular, image, and face datasets show that using the learned representation, downstream predictions that we are unaware of when learning the representation indeed become fairer for seven group fairness notions, and the fairness guarantees computed from our theoretical results are all valid.
description: published in TPAMI
The intensity contrast of solar granulation: comparing Hinode SP results with MHD simulations
Creators: name: Danilovic, S.
name: Gandorfer, A.
name: Lagg, A.
name: Schüssler, M.
name: Solanki, S. K.
name: Vögler, A.
name: Katsukawa, Y.
name: Tsuneta, S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The contrast of granulation is an important quantity characterizing solar surface convection. We compare the intensity contrast at 630 nm, observed using the Spectro-Polarimeter (SP) aboard the Hinode satellite, with the 3D radiative MHD simulations of V{ö}gler & Sch{ü}ssler (2007). A synthetic image from the simulation is degraded using a theoretical point-spread function of the optical system, and by considering other important effects. The telescope aperture and the obscuration by the secondary mirror and its attachment spider, reduce the simulated contrast from 14.4 % to 8.5 %. A slight effective defocus of the instrument brings the simulated contrast down to 7.5 %, close to the observed value of 7.0 %. A proper consideration of the effects of the optical system and a slight defocus, lead to sufficient degradation of the synthetic image from the MHD simulation, such that the contrast reaches almost the observed value. The remaining small discrepancy can be ascribed to straylight and slight imperfections of the instrument, which are difficult to model. Hence, Hinode SP data are consistent with a granulation contrast which is predicted by 3D radiation MHD simulations.
description: 5 pages, 4 figures, to be published in A&A
Additional file 4 of Enhanced anti-inflammatory effects of mesenchymal stromal cells mediated by the transient ectopic expression of CXCR4 and IL10
Creators: name: Hervás-Salcedo, Rosario
name: Fernández-García, María
name: Hernando-Rodríguez, Miriam
name: Quintana-Bustamante, Oscar
name: Jose-Carlos Segovia
name: Alvarez-Silva, Marcio
name: García-Arranz, Mariano
name: Minguez, Pablo
name: Pozo, Victoria Del
name: Alba, Marta Rodríguez De
name: García-Olmo, Damián
name: Ayuso, Carmen
name: Lamana, María Luisa
name: Bueren, Juan A.
name: Yañez, Rosa María
Publisher: name: figshare
Year: 2021
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 4: Figure S4. Chromosomal stability studies in WT and CXCR4-IL10-mRNA transfected Ad-MSCs. (A) Representative cytogenetic analysis in WT and CXCR4-IL10-transfected Ad-MSCs conducted 4 h after transfection. (B) Representative array CGH analysis in the same samples analyzed in panel A.
Non-abelian bosonization in two and three spatial dimensions and applications
Creators: name: Huang, Yen-Ta
name: Lee, Dung-Hai
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper, we generalize Witten's non-abelian bosonization in $(1+1)$-D to two and three spatial dimensions. Our theory applies to fermions with relativistic dispersion. The bosonized theories are non-linear sigma models with level-1 Wess-Zumino-Witten terms. We apply the bosonization results to the $SU(2)$ gauge theory of the $π$-flux phase, critical spin liquids in 1,2,3 spatial dimensions, and twisted bilayer graphene.
description: v2: Slight revision of the twisted-bilayer graphene section. New references added
SiamMOT: Siamese Multi-Object Tracking
Creators: name: Shuai, Bing
name: Berneshawi, Andrew
name: Li, Xinyu
name: Modolo, Davide
name: Tighe, Joseph
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In this paper, we focus on improving online multi-object tracking (MOT). In particular, we introduce a region-based Siamese Multi-Object Tracking network, which we name SiamMOT. SiamMOT includes a motion model that estimates the instance's movement between two frames such that detected instances are associated. To explore how the motion modelling affects its tracking capability, we present two variants of Siamese tracker, one that implicitly models motion and one that models it explicitly. We carry out extensive quantitative experiments on three different MOT datasets: MOT17, TAO-person and Caltech Roadside Pedestrians, showing the importance of motion modelling for MOT and the ability of SiamMOT to substantially outperform the state-of-the-art. Finally, SiamMOT also outperforms the winners of ACM MM'20 HiEve Grand Challenge on HiEve dataset. Moreover, SiamMOT is efficient, and it runs at 17 FPS for 720P videos on a single modern GPU. Codes are available in \url{https://github.com/amazon-research/siam-mot}.
Additional file 5 of Enhanced anti-inflammatory effects of mesenchymal stromal cells mediated by the transient ectopic expression of CXCR4 and IL10
Creators: name: Hervás-Salcedo, Rosario
name: Fernández-García, María
name: Hernando-Rodríguez, Miriam
name: Quintana-Bustamante, Oscar
name: Jose-Carlos Segovia
name: Alvarez-Silva, Marcio
name: García-Arranz, Mariano
name: Minguez, Pablo
name: Pozo, Victoria Del
name: Alba, Marta Rodríguez De
name: García-Olmo, Damián
name: Ayuso, Carmen
name: Lamana, María Luisa
name: Bueren, Juan A.
name: Yañez, Rosa María
Publisher: name: figshare
Year: 2021
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 5: Figure S5. Peripheral blood cell counts in mice locally infused with LPS. (A) Evolution of circulating white blood cell (WBCs) counts in mice injected with PBS (control group) or LPS. (B) Evolution of circulating lymphocytes, monocytes and granulocytes after LPS injection compared to control mice. (C) Counts of circulating white blood cells (WBCs), red blood cells (RBCs) and platelets 72 h after LPS injection compared to levels obtained in the LPS group not receiving MSCs. Data represent the mean ± SEM of at least n = 6 mice/group. Statistical differences between LPS-injected and control mice were calculated with Tukey’s multiple comparisons test. *p < 0.05, **p < 0.01, ***p < 0.001, versus control group without LPS injection (A and B) or LPS group without MSCs (C).
Improving Speaker Identification for Shared Devices by Adapting Embeddings to Speaker Subsets
Creators: name: Tan, Zhenning
name: Yang, Yuguang
name: Han, Eunjung
name: Stolcke, Andreas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Cryptography and Security (cs.CR)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Speaker identification typically involves three stages. First, a front-end speaker embedding model is trained to embed utterance and speaker profiles. Second, a scoring function is applied between a runtime utterance and each speaker profile. Finally, the speaker is identified using nearest neighbor according to the scoring metric. To better distinguish speakers sharing a device within the same household, we propose a household-adapted nonlinear mapping to a low dimensional space to complement the global scoring metric. The combined scoring function is optimized on labeled or pseudo-labeled speaker utterances. With input dropout, the proposed scoring model reduces EER by 45-71% in simulated households with 2 to 7 hard-to-discriminate speakers per household. On real-world internal data, the EER reduction is 49.2%. From t-SNE visualization, we also show that clusters formed by household-adapted speaker embeddings are more compact and uniformly distributed, compared to clusters formed by global embeddings before adaptation.
description: Submitted to ASRU 2021
Additional file 6 of Enhanced anti-inflammatory effects of mesenchymal stromal cells mediated by the transient ectopic expression of CXCR4 and IL10
Creators: name: Hervás-Salcedo, Rosario
name: Fernández-García, María
name: Hernando-Rodríguez, Miriam
name: Quintana-Bustamante, Oscar
name: Jose-Carlos Segovia
name: Alvarez-Silva, Marcio
name: García-Arranz, Mariano
name: Minguez, Pablo
name: Pozo, Victoria Del
name: Alba, Marta Rodríguez De
name: García-Olmo, Damián
name: Ayuso, Carmen
name: Lamana, María Luisa
name: Bueren, Juan A.
name: Yañez, Rosa María
Publisher: name: figshare
Year: 2021
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 6: Figure S6. Analysis of circulating human IL10 levels in the serum of mice treated with LPS and WT or mRNA-transfected Ad-MSCs. (A) ELISA analysis of circulating human IL10 levels in the serum of mice treated with LPS and WT and mRNA-transfected MSCs. Grey and white symbols represent, respectively, analyses performed 24 or 48h after MSC infusion. (B) Levels of circulating murine IFNγ, TNFα, IL1β and IL6 in the serum of mice treated with LPS and WT and mRNA-transfected MSCs. Differences between mice receiving only LPS and mice treated with LPS plus the different Ad-MSC groups were analyzed with Tukey’s multiple comparisons test. *p < 0.05.
eResearch Australasia 2021 - BoF - Geospatial Capabilities Community of Practice
Creators: name: Dharmawardena, Kheeran
name: Rigby, Michael
name: Srivastava, Sanjeev
Publisher: name: Zenodo
Year: 2021
Subjects: geospatial
data

description: Slides for presentation delivered at the eResearch Australasia 2021 Birds of a Feather session "Geospatial Capabilities for the next decade: scale, sector and pathways for collaboration and utilisation of spatial data infrastructures". The recording of the presentation is available at Geospatial Capabilities for the next decade - eResearch Australasia 2021 BoF (youtube video)
Quantification of fetal organ sparing in maternal low-protein dietary models
Creators: name: Serpente, Patricia
name: Zhang, Ying
name: Islimye, Eva
name: Hart-Johnson, Sarah
name: Gould, Alex P
Publisher: name: The Francis Crick Institute
Year: 2022
Subjects: classificationCode: Neurosciences
subject: Neurosciences
subject: FOS: Clinical medicine
classificationCode: Model organisms
subject: Model organisms
classificationCode: Imaging
subject: Imaging
classificationCode: Tumour Biology
subject: Tumour Biology
classificationCode: Genetics & Genomics
subject: Genetics & Genomics
classificationCode: Developmental Biology
subject: Developmental Biology
classificationCode: Stem Cells
subject: Stem Cells
classificationCode: Metabolism
subject: Metabolism

description: Background: Maternal malnutrition can lead to fetal growth restriction. This is often associated with organ sparing and long-lasting physiological dysfunctions during adulthood, although the underlying mechanisms are not yet well understood.
Methods: Low protein (LP) dietary models in C57BL/6J mice were used to investigate the proximal effects of maternal malnutrition on fetal organ weights and organ sparing at embryonic day 18.5 (E18.5).
Results: Maternal 8% LP diet induced strikingly different degrees of fetal growth restriction in different animal facilities, but adjustment of dietary protein content allowed similar fetal body masses to be obtained. A maternal LP diet that restricted fetal body mass by 40% did not decrease fetal brain mass to the same extent, reflecting positive growth sparing of this organ. Under these conditions, fetal pancreas and liver mass decreased by 60-70%, indicative of negative organ sparing. A series of dietary swaps between LP and standard diets showed that the liver is capable of efficient catch-up growth from as late as E14.5 whereas, after E10.5, the pancreas is not.
Conclusions: This study highlights that the reproducibility of LP fetal growth restriction studies between laboratories can be improved by careful calibration of maternal dietary protein content. LP diets that induce 30-40% restriction of prenatal growth provide a good model for fetal organ sparing. For the liver, recovery of growth following protein restriction is efficient throughout fetal development but, for the pancreas, transient LP exposures spanning the progenitor expansion phase lead to an irreversible fetal growth deficit.
Additional file 9 of Enhanced anti-inflammatory effects of mesenchymal stromal cells mediated by the transient ectopic expression of CXCR4 and IL10
Creators: name: Hervás-Salcedo, Rosario
name: Fernández-García, María
name: Hernando-Rodríguez, Miriam
name: Quintana-Bustamante, Oscar
name: Jose-Carlos Segovia
name: Alvarez-Silva, Marcio
name: García-Arranz, Mariano
name: Minguez, Pablo
name: Pozo, Victoria Del
name: Alba, Marta Rodríguez De
name: García-Olmo, Damián
name: Ayuso, Carmen
name: Lamana, María Luisa
name: Bueren, Juan A.
name: Yañez, Rosa María
Publisher: name: figshare
Year: 2021
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 9: Table S2. List of up-regulated genes in mRNA-transfected Ad-MSCs compared to WT-MSCs.
The Structure of Toxic Conversations on Twitter
Creators: name: Saveski, Martin
name: Roy, Brandon
name: Roy, Deb
Publisher: name: arXiv
Year: 2021
Subjects: subject: Social and Information Networks (cs.SI)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Social media platforms promise to enable rich and vibrant conversations online; however, their potential is often hindered by antisocial behaviors. In this paper, we study the relationship between structure and toxicity in conversations on Twitter. We collect 1.18M conversations (58.5M tweets, 4.4M users) prompted by tweets that are posted by or mention major news outlets over one year and candidates who ran in the 2018 US midterm elections over four months. We analyze the conversations at the individual, dyad, and group level. At the individual level, we find that toxicity is spread across many low to moderately toxic users. At the dyad level, we observe that toxic replies are more likely to come from users who do not have any social connection nor share many common friends with the poster. At the group level, we find that toxic conversations tend to have larger, wider, and deeper reply trees, but sparser follow graphs. To test the predictive power of the conversational structure, we consider two prediction tasks. In the first prediction task, we demonstrate that the structural features can be used to predict whether the conversation will become toxic as early as the first ten replies. In the second prediction task, we show that the structural characteristics of the conversation are also predictive of whether the next reply posted by a specific user will be toxic or not. We observe that the structural and linguistic characteristics of the conversations are complementary in both prediction tasks. Our findings inform the design of healthier social media platforms and demonstrate that models based on the structural characteristics of conversations can be used to detect early signs of toxicity and potentially steer conversations in a less toxic direction.
description: Accepted for Publication at the Web Conference 2021 (WWW '21); 12 pages
Additional file 7 of Enhanced anti-inflammatory effects of mesenchymal stromal cells mediated by the transient ectopic expression of CXCR4 and IL10
Creators: name: Hervás-Salcedo, Rosario
name: Fernández-García, María
name: Hernando-Rodríguez, Miriam
name: Quintana-Bustamante, Oscar
name: Jose-Carlos Segovia
name: Alvarez-Silva, Marcio
name: García-Arranz, Mariano
name: Minguez, Pablo
name: Pozo, Victoria Del
name: Alba, Marta Rodríguez De
name: García-Olmo, Damián
name: Ayuso, Carmen
name: Lamana, María Luisa
name: Bueren, Juan A.
name: Yañez, Rosa María
Publisher: name: figshare
Year: 2021
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 7: Figure S7. Enhanced response of Ad-MSCs co-expressing CXCR4 and IL10 to SDF1 in bone marrow of LPS-treated mice. (A) Flow cytometry analyses of CFSE-labelled Ad-MSCs in BM from mice pre-treated with LPS (local administration in one pad) and infused with WT or CXCR4-IL10-MSCs. (B) Quantification of the presence of Ad-MSCs-CFSE+ in BM. Analyses were conducted 24 hours after the infusion of Ad-MSCs. Bars represent the mean ± SEM of n = 3-5 mice/group. Unpaired t test was used to compare CFSE+ cell number in BM of mice receiving WT-MSCs with BM of those receiving CXCR4-IL10-MSCs.
Probing chromatic onsets of gravitational wave overtones
Creators: name: Wang, Hai-Tian
name: Hu, Yi-Ming
name: Li, Peng-Cheng
name: Fan, Yi-Zhong
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The ringdown data of both GW150914 and GW190521\_074359 (GW190521r) show evidence supporting the presence of overtone. Previous studies all adopt a fundamental assumption, which were motivated more by convenience than by first principles, that the first overtone and the fundamental mode share a same onset. In this work, for the first time we relax such assumption, and we aim to probe the possible chromatic onsets of these two components within the GW150914 and GW190521r ringdown data. For both events, we bound the onset lags to be $Δt_0\geq 5M_f$ at probabilities of $\geq 94.7\%$, where $M_f$ is the mass of the remnant black hole formed in the merger. This result moderately favours the non-simultaneous excitation between the fundamental mode and the first overtone in the ringdown.
description: 6 pages, 3 figures, 1 table, accepted by PRD
Bridging the Gap: Access to Finance for Refugee Entrepreneurs in the UK
Creators: name: Pershina, Elena
name: Davies, Philip
name: Shepherd, William
Publisher: name: Transformative Enterprise Research Group
Year: 2025
Subjects: subject: Refugee
subject: Entrepreneurship
subject: Finances
subject: Refugee Entrepreneurship
subject: Access to Finance
subject: Financial Inclusion
subject: Resource-Based View (RBV)
subject: Social Capital and Networks
subject: Microfinance and Alternative Funding
subject: Legal and Institutional Barriers
subject: Community Integration/economics
subject: Economic Integration
subject: Digital Finance and Fintech Solutions
subject: Policy Interventions for Refugee Entrepreneurs

description: Refugee entrepreneurship plays a vital role in fostering economic independence and social integration, yet access to finance remains a significant barrier to success. This paper examines the financial challenges faced by refugee entrepreneurs in the UK, identifying key legal, institutional, and social constraints that hinder their ability to secure funding. Utilising a Resource-Based View (RBV), the study explores how refugee entrepreneurs leverage internal resources, such as skills, resilience, and community networks, to overcome financial limitations. It contrasts this approach with social capital theory, highlighting the importance of networks and institutional support in financial inclusion.

The paper also reviews policy interventions and pilot programmes aimed at addressing financial access barriers, offering insights into their effectiveness. Case studies of refugee entrepreneurs illustrate the impact of limited financial access and the adaptive strategies employed to sustain businesses. Finally, the paper identifies critical areas for further research, including the role of digital finance, comparative studies of funding mechanisms, and the long-term economic contributions of refugee entrepreneurs. By addressing these gaps, this study contributes to policy discussions on enhancing financial inclusion and unlocking the full economic potential of refugee-led enterprises in the UK.
Effect of Vinyl Acetate Content to Performance of Ethylene-Vinyl Acetate Copolymer Adopted to Photovoltaic Module Encapsulant
Creators: name: Yoda, H.
name: Koyama, S.
name: Morikawa, M.
name: Nagamatsu, T.
Publisher: name: WIP
Year: 2012
Subjects: Components for PV Systems
PV Modules

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 3566-3569
description: Ethylene-vinyl acetate copolymer (EVA) is one of the representative encapsulation materials for
photovoltaic (PV) modules. It is believed that deep understanding of relationships between the resin properties and
the characteristics requirements as encapsulant are useful for new encapsulant material development. In this paper,
vinyl acetate (VA) content effects of EVA are discussed in major properties, which are required for photovoltaic
module encapsulation. Five properties of the encapsulant sheet are evaluated in this research; light transmittance,
flexibility, electrical insulation, thermal stability and heat-shrinkage. Light transmittance and flexibility of
encapsulant were increased with the increase of VA content, while the insulation performance becomes lower. The
light transmittance level is almost plateaued at around 28~32 wt% of VA content due to no further decrease in
crystallinity. Regarding thermal stability, thermal deformation ratio of cured encapsulant has a correlationwith its gel
fraction. When VA content of EVA is lower than 28 wt%, the gel fraction of EVA tends to increase with increasing
of VA content, while there is no significant difference in cross-linking property between the samples with VA higher
than 28 wt%. The heat shrinkage ratio of the encapsulant increaseswith increasing VA content.
Higher Powers in Gravitation
Creators: name: Clifton, Timothy
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the Friedmann-Robertson-Walker cosmologies of theories of gravity that generalise the Einstein-Hilbert action by replacing the Ricci scalar, R, with some function, f(R). The general asymptotic behaviour of these cosmologies is found, at both early and late times, and the effects of adding higher and lower powers of R to the Einstein-Hilbert action is investigated. The assumption that the highest powers of R should dominate the Universe's early history, and that the lowest powers should dominate its future is found to be inaccurate. The behaviour of the general solution is complicated, and while it can be the case that single powers of R dominate the dynamics at late times, it can be either the higher or lower powers that do so. It is also shown that it is often the lowest powers of R that dominate at early times, when approach to a bounce or a Tolman solution are generic possibilities. Various examples are considered, and both vacuum and perfect fluid solutions investigated.
description: 30 pages, 9 figures
Additional file 8 of Enhanced anti-inflammatory effects of mesenchymal stromal cells mediated by the transient ectopic expression of CXCR4 and IL10
Creators: name: Hervás-Salcedo, Rosario
name: Fernández-García, María
name: Hernando-Rodríguez, Miriam
name: Quintana-Bustamante, Oscar
name: Jose-Carlos Segovia
name: Alvarez-Silva, Marcio
name: García-Arranz, Mariano
name: Minguez, Pablo
name: Pozo, Victoria Del
name: Alba, Marta Rodríguez De
name: García-Olmo, Damián
name: Ayuso, Carmen
name: Lamana, María Luisa
name: Bueren, Juan A.
name: Yañez, Rosa María
Publisher: name: figshare
Year: 2021
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 8: Table S1. Primers used in the different qPCRs.
Neural network approaches for solving Schrödinger equation in arbitrary quantum wells
Creators: name: Radu, Adrian
name: Duque, Carlos A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: In this work we approach the Schrödinger equation in quantum wells with arbitrary potentials, using the machine learning technique. Two neural networks with different architectures are proposed and trained using a set of potentials, energies, and wave functions previously generated with the classical finite element method. Three accuracy indicators have been proposed for testing the estimates given by the neural networks. The networks are trained by the gradient descent method and the training validation is done with respect to a large training data set. The two networks are then tested for two different potential data sets and the results are compared. Several cases with analytical potential have also been solved.
description: 20 pages
Phase coexistence of cluster crystals: beyond the Gibbs phase rule
Creators: name: Mladek, Bianca M.
name: Charbonneau, Patrick
name: Frenkel, Daan
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We report a study of the phase behavior of multiple-occupancy crystals through simulation. We argue that in order to reproduce the equilibrium behavior of such crystals it is essential to treat the number of lattice sites as a constraining thermodynamic variable. The resulting free-energy calculations thus differ considerably from schemes used for single-occupancy lattices. Using our approach, we obtain the phase diagram and the bulk modulus for a generalized exponential model that forms cluster crystals at high densities. We compare the simulation results with existing theoretical predictions. We also identify two types of density fluctuations that can lead to two sound modes and evaluate the corresponding elastic constants.
description: 4 pages, 3 figures
Mode Structure of a Broadband High Gain Parametric Amplifier
Creators: name: Chen, Xin
name: Zhang, Jacob
name: Ou, Z. Y.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: High gain parametric amplifier with a single-pass pulsed pump is known to generate broadband twin photon fields that are entangled in amplitude and phase but have complicated spectral correlation. Fortunately, they can be decomposed into independent temporal modes. But the common treatment of parametric interaction Hamiltonian does not consider the issue of time ordering problem of interaction Hamiltonian and thus leads to incorrect conclusion that the mode structure and the temporal mode functions do not change as the gain increases. In this paper, we use an approach that is usually employed for treating nonlinear interferometers and avoids the time ordering issue. This allows us to derive an evolution equation in differential-integral form. Numerical solutions for high gain situation indicate a gain-dependent mode structure that has its mode distributions changed and mode functions broadened as the gain increases.
On the Joint Distribution of Energy Levels of Random Schroedinger Operators
Creators: name: Aizenman, Michael
name: Warzel, Simone
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 82B44, 47B80

description: We consider operators with random potentials on graphs, such as the lattice version of the random Schroedinger operator. The main result is a general bound on the probabilities of simultaneous occurrence of eigenvalues in specified distinct intervals, with the corresponding eigenfunctions being separately localized within prescribed regions. The bound generalizes the Wegner estimate on the density of states. The analysis proceeds through a new multiparameter spectral averaging principle.
Computation of highly ramified coverings
Creators: name: Vidunas, Raimundas
name: Kitaev, Alexander
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Geometry (math.AG)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 57M12, 34M55, 33E17

description: An almost Belyi covering is an algebraic covering of the projective line, such that all ramified points except one simple ramified point lie above a set of 3 points of the projective line. In general, there are 1-dimensional families of these coverings with a fixed ramification pattern. (That is, Hurwitz spaces for these coverings are curves.) In this paper, three almost Belyi coverings of degrees 11, 12, and 20 are explicitly constructed. We demonstrate how these coverings can be used for computation of several algebraic solutions of the sixth Painleve equation.
description: 26 pages
Astrophysical Configurations with Background Cosmology: Probing Dark Energy at Astrophysical Scales
Creators: name: Balaguera-Antolinez, Andres
name: Mota, David F.
name: Nowakowski, Marek
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We explore the effects of a positive cosmological constant on astrophysical and cosmological configurations described by a polytropic equation of state. We derive the conditions for equilibrium and stability of such configurations and consider some astrophysical examples where our analysis may be relevant. We show that in the presence of the cosmological constant the isothermal sphere is not a viable astrophysical model since the density in this model does not go asymptotically to zero. The cosmological constant implies that, for polytropic index smaller than five, the central density has to exceed a certain minimal value in terms of the vacuum density in order to guarantee the existence of a finite size object. We examine such configurations together with effects of $Λ$ in other exotic possibilities, such as neutrino and boson stars, and we compare our results to N-body simulations. The astrophysical properties and configurations found in this article are specific features resulting from the existence of a dark energy component. Hence, if found in nature would be an independent probe of a cosmological constant, complementary to other observations.
description: 23 pages, 11 figures, 2 tables. Reference added. Mon. Not. Roy. Astro. Soc in print
Electromagnetic and strong contributions to dAu soft coherent inelastic diffraction at RHIC
Creators: name: Guzey, V.
name: Strikman, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We estimate electromagnetic (ultra-peripheral) and strong contributions to dAu soft coherent inelastic diffraction at RHIC, dAu \to X Au. We show that the electromagnetic contribution is the dominant one and that the corresponding cross section is sizable, σ^{dAu \to XAu}_{\rm e.m.}=214 mb, which constitutes 10% of the total dAu inelastic cross section.
description: 8 pages, 2 figures
A stabilization theorem for dynamics of continuous opinions
Creators: name: Lorenz, Jan
Publisher: name: arXiv
Year: 2007
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: A stabilization theorem for processes of opinion dynamics is presented. The theorem is applicable to a wide class of models of continuous opinion dynamics based on averaging (like the models of Hegselmann-Krause and Weisbuch-Deffuant). The analysis detects self-confidence as a driving force of stabilization.
description: 7 pages, no figures, first time presented at First Bonzenfreies Colloquium on Market Dynamics and Quantitative Economics, Sep 9/10 2004
Anomalous structural and mechanical properties of solids confined in quasi one dimensional strips
Creators: name: Chaudhuri, Debasish
name: Sengupta, Surajit
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We show using computer simulations and mean field theory that a system of particles in two dimensions, when confined laterally by a pair of parallel hard walls within a quasi one dimensional channel, possesses several anomalous structural and mechanical properties not observed in the bulk. Depending on the density $ρ$ and the distance between the walls $L_y$, the system shows structural characteristics analogous to a weakly modulated liquid, a strongly modulated smectic, a triangular solid or a buckled phase. At fixed $ρ$, a change in $L_y$ leads to many reentrant discontinuous transitions involving changes in the number of layers parallel to the confining walls depending crucially on the commensurability of inter-layer spacing with $L_y$. The solid shows resistance to elongation but not to shear. When strained beyond the elastic limit it fails undergoing plastic deformation but surprisingly, as the strain is reversed, the material recovers completely and returns to its original undeformed state. We obtain the phase diagram from mean field theory and finite size simulations and discuss the effect of fluctuations.
description: 14 pages, 13 figures; revised version, accepted in J. Chem. Phys
Phonon effect on two coupled quantum dots at finite temperature
Creators: name: Du, Cheng-Ran
name: Zhu, Ka-Di
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The quantum oscillations of population in an asymmetric double quantum dots system coupled to a phonon bath are investigated theoretically. It is shown how the environmental temperature has effect on the system.
ILC Positron Production Target Simulation
Creators: name: Gharibyan, V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: A photon-positron conversion target of the undulator or laser based polarized positron source is optimized using a modified GEANT-3 program adapted to count the spin transfer. High intensity positron beam with around 0.75 polarisation could be achieved choosing tungsten conversion target of 0.3 and 0.7 radiation lengths for the undulator and laser case respectively.
description: 4 pages, 5 figures, to appear in LCWS/ILC07 proceedings
Sqrt(d) Dimension Dependence of Langevin Monte Carlo
Creators: name: Li, Ruilin
name: Zha, Hongyuan
name: Tao, Molei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Numerical Analysis (math.NA)
subject: Probability (math.PR)
subject: Statistics Theory (math.ST)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: This article considers the popular MCMC method of unadjusted Langevin Monte Carlo (LMC) and provides a non-asymptotic analysis of its sampling error in 2-Wasserstein distance. The proof is based on a refinement of mean-square analysis in Li et al. (2019), and this refined framework automates the analysis of a large class of sampling algorithms based on discretizations of contractive SDEs. Using this framework, we establish an $\tilde{O}(\sqrt{d}/ε)$ mixing time bound for LMC, without warm start, under the common log-smooth and log-strongly-convex conditions, plus a growth condition on the 3rd-order derivative of the potential of target measures. This bound improves the best previously known $\tilde{O}(d/ε)$ result and is optimal (in terms of order) in both dimension $d$ and accuracy tolerance $ε$ for target measures satisfying the aforementioned assumptions. Our theoretical analysis is further validated by numerical experiments.
description: v1 submitted on May 28, 2021 (NeurIPS 2021 deadline); v2 added an important reference and discussions; v3 is the camera ready version
Hadronic three-body decays of light vector mesons
Creators: name: Leupold, S.
name: Lutz, M. F. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The decays of light vector mesons into three pseudoscalar mesons are calculated to leading order in the recently proposed counting scheme that is based on the hadrogenesis conjecture. Fully differential as well as integrated decay widths are presented. Since the required parameters have been fixed by other processes, the considered three-body decays are predictions of the presented approach. The decay width of the omega meson into three pions agrees very well with experiment. The partial decay widths of the K^* into its three K-pi-pi channels are predicted.
description: 7 pages
Velocity fluctuations in a one dimensional Inelastic Maxwell model
Creators: name: Costantini, G.
name: Marconi, U. Marini Bettolo
name: Puglisi, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We consider the velocity fluctuations of a system of particles described by the Inelastic Maxwell Model. The present work extends the methods, previously employed to obtain the one-particle velocity distribution function, to the study of the two particle correlations. Results regarding both the homogeneous cooling process and the steady state driven regime are presented. In particular we obtain the form of the pair correlation function in the scaling region of the homogeneous cooling process and show that some of its moments diverge. This fact has repercussions on the behavior of the energy fluctuations of the model.
description: 16 pages, 1 figure, to be published on Journal of Statistical Mechanics: Theory and Experiments
Exotic clouds in the local interstellar medium
Creators: name: Stanimirovic, Snezana
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The neutral interstellar medium (ISM) inside the Local Bubble (LB) has been known to have properties typical of the warm neutral medium (WNM). However, several recent neutral hydrogen (HI) absorption experiments show evidence for the existence of at least several cold diffuse clouds inside or at the boundary of the LB, with properties highly unusual relative to the traditional cold neutral medium. These cold clouds have a low HI column density, and AU-scale sizes. As the kinematics of cold and warm gas inside the LB are similar, this suggests a possibility of all these different flavors of the local ISM belonging to the same interstellar flow. The co-existence of warm and cold phases inside the LB is exciting as it can be used to probe the thermal pressure inside the LB. In addition to cold clouds, several discrete screens of ionized scattering material are clearly located inside the LB. The cold exotic clouds inside the LB are most likely long-lived, and we expect many more clouds with similar properties to be discovered in the future with more sensitive radio observations. While physical mechanisms responsible for the production of such clouds are still poorly understood, dynamical triggering of phase conversion and/or interstellar turbulence are likely to play an important role.
description: 10 pages, refereed, accepted for publication in the proceedings of the "From the Outer Heliosphere to the Local Bubble: Comparisons of New Observations with Theory" conference, Space Science Reviews
Modelling and Simulation of Emitter Defects of Chalcopyrite-Silicon Hetero-Junction Solar Cells
Creators: name: Wu, J.
name: Wang, X.-S.
name: Zhang, L.
name: Shen, W.
Publisher: name: WIP
Year: 2012
Subjects: Material Studies, New Concepts and Ultra-High Efficiency
Fundamental Material Studies

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 439-443
description: Silicon based chalcopyrite (with the compounds composition I(B)-III(A)-VI(A)2) hetero-junction solar
cells have been reported with the potential of high conversion efficiency theoretically. The hetero-junction solar cell
with PNN+ structure is fabricated as: front metal electrodes/ transparent conductive oxide (TCO)/ p-type chalcopyrite
layer emitter/ n-type silicon base/ n+ silicon back surface doping/ rear metal electrodes. By the means of numerical
analysis with AMPS-1D simulation, the impacts of the specific chalcopyrite emitter defect states, Gaussian mid-gap
states and Urbach band tail, were studied. When single acceptor-like Gaussian defects density exceeds 1×1016cm-3, or
donor-like Gaussian defects density exceeds 8×1015cm-3, the hetero-junction solar cell efficiency will significantly
decrease, while the peak energy position or standard energy deviation influence very little. For Urbach band tail state,
cell efficiency decreases significantly when the density per energy exceeds a critical value 1×1020cm-3eV-1. The fitted
diode ideality factor in low voltage and high (near open circuit) voltage area from dark J-V data indicates the Auger
recombination due to high injection is the main mechanism for efficiency loss.
High Efficient Local Al BSF Solar Cells with Chemical and Laser Ablation
Creators: name: Woo, J.
name: Meng, X.
name: Xie, J.
name: Wang, X.
name: Zhang, L.
Publisher: name: WIP
Year: 2012
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Improvements

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 686-690
description: Low-cost high efficiency solar cells are the key to achieving grid parity with photovoltaic devices. The
technology transfer of solar cell concept local Al-BSF (LBSF) helps to achieve high efficiency. This paper details the
fabrication, characterization and analysis of 239 cm2 screen printed cells with a champion efficiency 19.7%. A
printed etching paste and a pico-second laser were compared for selective opening of rear PECVD AlOx and SiNx
stack layers. Both techniques attain significant improvements (0.8 % abs. for laser ablated samples and a 0.9 % abs
for paste opening) with respect to the conventional full Al-BSF process. The etching paste group presents relatively
higher Voc (+2mV), and FF (+0.4% abs.), while almost equivalent Isc with laser ablation. Microscopy was employed
to compare the quality of the BSF, and the higher Voc of dielectric opened with etching paste relates to a deeper local
BSF. Characterization and analysis of these cells is performed further using internal quantum efficiency (IQE) and
Suns-Voc measurements. The FF loss of laser ablation group mainly comes from the base shunting from the thermal
damage to p-surface by ps laser, rather than the small Al coverage ratio. Almost equivalent Isc and corresponding IQE
and reflectance relates to quite similar passivated coverage ratio and opening geometry of both local opening methods.
Overall comparison indicates boths of the opening methods have the application potential in LBSF solar cell production.
On Kinetic Transport in Small System Collectivity and a Measurement of Separated Open Heavy Flavor Production in p+p Collisions at 200 GeV
Creators: name: Orjuela Koop, Javier
Publisher: name: Zenodo
Year: 2018
Subjects: phenix
azimuthal
dca
heavy flavor
invariant yield
anisotropy
hadronization
transverse momentum

description: This dissertation presents a comprehensive study of collective behavior in small collision systems from the point of view of the kinetic theory and also the experimental measurement of the charm and bottom decay electron cross section in p+p collisions at √sNN = 200 GeV