cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
MASSIV: Mass Assembly Survey with SINFONI in VVDS - II. Kinematics and close environment classification
Creators: name: Epinat, B.
name: Tasca, L.
name: Amram, P.
name: Contini, T.
name: Fèvre, O. Le
name: Queyrel, J.
name: Vergani, D.
name: Garilli, B.
name: Kissler-Patig, M.
name: Moultaka, J.
name: Paioro, L.
name: Tresse, L.
name: Bournaud, F.
name: López-Sanjuan, C.
name: Perret, V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: (Abridged) Processes driving mass assembly are expected to evolve on different timescales along cosmic time. A transition might happen around z ~ 1 as the cosmic star formation rate starts its decrease. Identifying the dynamical nature of galaxies on a representative sample is necessary to infer and compare the mass assembly mechanisms across cosmic time. We present an analysis of the kinematics properties of 50 galaxies with 0.9 < z < 1.6 from the MASSIV sample observed with SINFONI/VLT with 4.5x10^9 Msun < M < 1.7x10^11 Msun and 6 Msun/yr < SFR < 300 Msun/yr. This is the largest sample with 2D-kinematics in this redshift range. We provide a classification based on kinematics as well as on close galaxy environment. We find that 29% of galaxies are experiencing merging or have close companions that may be gravitationally linked. This is placing a lower limit on the fraction of interacting galaxies. We find that at least 44% of the galaxies display ordered rotation whereas at least 35% are non-rotating objects. All rotators except one are compatible with rotation-dominated (Vmax/sigma > 1) systems. Non-rotating objects are mainly small objects (Re < 4 kpc). Combining our sample with other 3D-spectroscopy samples, we find that the local velocity dispersion of the ionized gas component decreases continuously from z ~ 3 to z = 0. The proportion of disks also seems to be increasing in star-forming galaxies when the redshift decreases. The number of interacting galaxies seems to be at a maximum at z ~ 1.2. These results draw a picture in which cold gas accretion may still be efficient at z ~ 1.2 but in which mergers may play a much more significant role at z ~ 1.2 than at higher redshift. From a dynamical point of view, the redshift range 1 < z < 2 therefore appears as a transition period in the galaxy mass assembly process.
description: 23 pages (+29 maps pages), 7 figures, language corrections and reference updates included, A&A in press
Additional file 1 of Stereotactic body radiotherapy for osseous low alpha–beta resistant metastases for pain relief—SOLAR-P
Creators: name: Nguyen, Eric K.
name: Quan, Kimmen
name: Parpia, Sameer
name: Tran, Stephan
name: Swaminath, Anand
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Pharmacology
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Hematology
subject: Plant Biology
subject: Computational Biology

description: Additional file 1. Brief Pain Inventory.
Measurement of the Cerebellar Vermis in Bipolar Disorder and the Effect of Lithium Treatment
Creators: name: Mahnke, Devin
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Neuroscience
subject: Mental Health
subject: bipolar disorder
subject: cerebellar vermis
subject: MRI
subject: lithium

description: Previous studies have suggested that the cerebellar vermis may be smaller in individuals with bipolar disorder, but these findings are inconsistent and have not considered the potential impact of medication. To address these knowledge gaps, the cerebellar vermis was measured using structural magnetic resonance imaging in both an adolescent and an adult sample. Analysis of variance was performed on the cross-sectional area of the three vermal lobes and on the total area. There were no significant differences between adolescent or adult bipolar subjects compared to healthy controls in any region, regardless of lithium treatment. In addition, a medication-naïve subset of the adult population underwent a two-year course of lithium treatment and was then reassessed. No changes in vermis area were found within subjects across the treatment. These results, combined with literature meta-analysis, indicate no clear effect of either bipolar disorder, or lithium treatment, on the size of the cerebellar vermis.
Additional file 1 of Evaluation of different approaches for missing data imputation on features associated to genomic data
Creators: name: Petrazzini, Ben Omega
name: Naya, Hugo
name: Lopez-Bello, Fernando
name: Vazquez, Gustavo
name: Spangenberg, Lucía
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Table S1.
PilotDB: Database-Agnostic Online Approximate Query Processing with A Priori Error Guarantees (Technical Report)
Creators: name: Zhu, Yuxuan
name: Jin, Tengjun
name: Baziotis, Stefanos
name: Zhang, Chengsong
name: Mendis, Charith
name: Kang, Daniel
Publisher: name: arXiv
Year: 2025
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences
subject: H.2.4; G.3

description: After decades of research in approximate query processing (AQP), its adoption in the industry remains limited. Existing methods struggle to simultaneously provide user-specified error guarantees, eliminate maintenance overheads, and avoid modifications to database management systems. To address these challenges, we introduce two novel techniques, TAQA and BSAP. TAQA is a two-stage online AQP algorithm that achieves all three properties for arbitrary queries. However, it can be slower than exact queries if we use standard row-level sampling. BSAP resolves this by enabling block-level sampling with statistical guarantees in TAQA. We simple ment TAQA and BSAP in a prototype middleware system, PilotDB, that is compatible with all DBMSs supporting efficient block-level sampling. We evaluate PilotDB on PostgreSQL, SQL Server, and DuckDB over real-world benchmarks, demonstrating up to 126X speedups when running with a 5% guaranteed error.
description: 23 pages, 19 figures
Multiwavelength study of the infrared dust bubble S51
Creators: name: Zhang, Chuan Peng
name: Wang, Jun Jie
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We investigate the environment of the infrared dust bubble S51 and search for evidence of triggered star formation in its surroundings. We performed a multiwavelength study of the region around S51 with data taken from large-scale surveys: 2MASS, GLIMPSE, MIPSGAL, IRAS, and MALT90. We analyzed the spectral profile and the distribution of the molecular gas (13CO, C18O, HCN, HNC, HCO+, C2H, N2H+, and HC3N), and dust in the environment of S51. We used mid-infrared emission three-color image to explore the physical environment and GLIMPSE color-color diagram [5.8]-[8.0] versus [3.6]-[4.5] to search for young stellar objects and identify the ionizing star candidates. From a comparison of the morphology of the molecular gas and the Spitzer 8.0 μm emission, we conclude that the dust bubble is interacting with CO at a kinematic distance of 3.4 kpc. The bubble S51 structure, carried with shell and front side, is exhibited with 13CO and C18O emission. Both outflow and inflow may exist in sources in the shell of bubble S51. We discover a small bubble G332.646-0.606 (R_in = 26", r_in = 15", R_out = 35" and r_out = 25") located at the northwest border of S51. A water maser, a methanol maser and IRAS 16158-5055 are located at the junction of the two bubbles. Several young stellar objects are distributed along an arc-shaped structure near the S51 shell. They may represent a second generation of stars whose formation was triggered by the bubble expanding into the molecular gas.
description: 15 pages, 12 figures, Accepted for publication in A&A. arXiv admin note: text overlap with arXiv:1002.0815 by other authors
Janelle Grant_Dissertation.pdf
Creators: name: Grant, Janelle Brittany
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: Inclusive education
Cultural theory

description: Most scholars now believe that Black students in schools will only succeed if they exhibit certain character traits, such as grit, resilience, and optimism. However, Black students are punished during school at a higher rate due to the belief that Black students need to be “fixed.” There is much literature that measures the so-called helpful traits that successful Black students have. For example, there are hundreds of studies that look at “resilient” Black students, and those researchers disseminate evidence that calls for Black students to change their being. The understanding that well-behaved students do better in schools than “bad” Black students is a dominant idea that my study challenges. As a result of my study Black students’ knowledge and behaviors are viewed with a humanizing lens that appreciates how Black students engage with the social structure of school. It is emphasized that the process of school discipline reinforced through discourses limits inclusion of Black student’s identities in education; however, I assert that the process of school discipline is reinforced through discursive limits that restrict Blackness in real-life school settings. In addition, as schools reflect larger society, this dissertation also interrogates how Black people navigate systemic racism despite the inundation of social norms that favor whiteness. Using qualitative methodologies and critical theoretical approaches, I examine 1) racializing surveillance in education, 2) Black student resistance at a high school, and 3) racism’s larger effects on societal responses to anti-blackness. First, I use critical autoethnography to tell my story as a Black girl in school navigating racializing surveillance and my understandings of how to be a good person/student. Second, I reframe Black student resistance by engaging five Black high schoolers in congregation meetings, exploring their creative and necessary work confront racialized discipline at their school. Third, I use psychoanalytic theory to describe how a pedagogy of anti-blackness penetrates not just in schools, but also larger society. Furthermore, how a society (and schools as an organization within society) disciplines individuals is not neutral, and school discipline is unjust.
CNN Feature Map Augmentation for Single-Source Domain Generalization
Creators: name: Ballas, Aristotelis
name: Diou, Christos
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In search of robust and generalizable machine learning models, Domain Generalization (DG) has gained significant traction during the past few years. The goal in DG is to produce models which continue to perform well when presented with data distributions different from the ones available during training. While deep convolutional neural networks (CNN) have been able to achieve outstanding performance on downstream computer vision tasks, they still often fail to generalize on previously unseen data Domains. Therefore, in this work we focus on producing a model which is able to remain robust under data distribution shift and propose an alternative regularization technique for convolutional neural network architectures in the single-source DG image classification setting. To mitigate the problem caused by domain shift between source and target data, we propose augmenting intermediate feature maps of CNNs. Specifically, we pass them through a novel Augmentation Layer} to prevent models from overfitting on the training set and improve their cross-domain generalization. To the best of our knowledge, this is the first paper proposing such a setup for the DG image classification setting. Experiments on the DG benchmark datasets of PACS, VLCS, Office-Home and TerraIncognita validate the effectiveness of our method, in which our model surpasses state-of-the-art algorithms in most cases.
description: In proceedings of IEEE BigDataService2023 (https://ieeebigdataservice.com/)
Degassing cascades in a shear-thinning viscoelastic fluid
Creators: name: Vidal, Valérie
name: Soubiran, François
name: Divoux, Thibaut
name: Géminard, Jean-Christophe
Publisher: name: arXiv
Year: 2011
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We report the experimental study of the degassing dynamics through a thin layer of shear-thinning viscoelastic fluid (CTAB/NaSal solution), when a constant air flow is imposed at its bottom. Over a large range of parameters, the air is periodically released through series of successive bubbles, hereafter named {\it cascades}. Each cascade is followed by a continuous degassing, lasting for several seconds, corresponding to an open channel crossing the fluid layer. The periodicity between two cascades does not depend on the injected flow-rate. Inside one cascade, the properties of the overpressure signal associated with the successive bubbles vary continuously. The pressure threshold above which the fluid starts flowing, fluid deformation and pressure drop due to degassing through the thin fluid layer can be simply described by a Maxwell model. We point out that monitoring the evolution inside the cascades provides a direct access to the characteristic relaxation time associated with the fluid rheology.
Search strategy and analysis - Medical Education
Creators: name: Armitage, Caroline S.
name: Kvernenes, Monika
Publisher: name: Zenodo
Year: 2023
Subjects: subject: Medical education
subject: https://www.ncbi.nlm.nih.gov/mesh/68004501

description: Search strategy and R analysis for bibliometric study of Norwegian medical education research, supporting the article Medisinsk utdanningsforskning i Norge de siste 50 årene – en bibliometristudie (submitted to journal). This repository contains a literature search strategy used for finding scientific publications about Medical Education research written by authors from a Norwegian institution. The search strategy is provided in markdown format in the file "Search_strategy.md" - this format allows easy copying and pasting of search strings when viewed on GitHub. It is also provided in pdf format. The repository also contains R code for the part of the bibliometric analysis carried out in R (file "Analysis_Rmarkdown.Rmd"). The R markdown file was written in R studio (2022.07.2) using R version 4.2.1, and can be viewed in R studio or a text editor. The analysis relies particularly on the R package Bibliometrix (Aria, M. & Cuccurullo, C. (2017) bibliometrix: An R-tool for comprehensive science mapping analysis, Journal of Informetrics, 11(4), pp 959-975, Elsevier). Other packages are documented in the script.
Constraining the quantum gravity polymer scale using LIGO data
Creators: name: Garcia-Chung, Angel
name: Carney, Matthew F.
name: Mertens, James B.
name: Parvizi, Aliasghar
name: Rastgoo, Saeed
name: Tavakoli, Yaser
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the first empirical constraints on the polymer scale describing polymer quantized GWs propagating on a classical background. These constraints are determined from the polymer-induced deviation from the classically predicted propagation speed of GWs. We leverage posterior information on the propagation speed of GWs from two previously reported sources: 1) inter-detector arrival time delays for signals from the LIGO-Virgo Collaboration's first gravitational-wave transient catalog, GWTC1, and 2) from arrival time delays between GW signal GW170817 and its associated gamma-ray burst GRB170817A. For pure-GW constraints, we find relatively uninformative combined constraints of $ν= 0.96\substack{+0.15 \\ -0.21} \times 10^{-53} \, \rm{kg}^{1/2}$ and $μ= 0.94\substack{+0.75 \\ -0.20} \times 10^{-48} \, \rm{kg}^{1/2} \cdot s$ at the $90\%$ credible level for the two polymer quantization schemes, where $ν$ and $μ$ refer to polymer parameters associated to the polymer quantization schemes of propagating gravitational degrees of freedom. For constraints from GW170817/GRB170817A, we report much more stringent constraints of $ν_{\mathrm{low}} =2.66\substack{+0.60 \\ -0.10}\times 10^{-56}$, $ν_{\mathrm{high}} = 2.66\substack{+0.45 \\ -0.10}\times 10^{-56} $ and $μ_{\mathrm{low}} = 2.84\substack{+0.64 \\ -0.11}\times 10^{-52}$, $μ_{\mathrm{high}} = 2.76\substack{+0.46 \\ -0.11}\times 10^{-52}$ for both representations of polymer quantization and two choices of spin prior indicated by the subscript. Additionally, we explore the effect of varying the lag between emission of the GW and EM signals in the multimessenger case.
description: Invited contribution to "Focus issue on Quantum Gravity Phenomenology in the Multi-Messenger Era: Challenges and Perspectives" in Classical and Quantum Gravity, 18 pages, 6 figures, Part of the COST Action CA18108: Quantum gravity phenomenology in the multi-messenger approach. V2: added comments on polymer quantization & statistical method used. Minor modification to plot colors. Published version
Graphical representation of covariant-contravariant modal formulae
Creators: name: Aceto, Luca
name: Fábregas, Ignacio
name: de Frutos-Escrig, David
name: Ingólfsdóttir, Anna
name: Palomino, Miguel
Publisher: name: arXiv
Year: 2011
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: Covariant-contravariant simulation is a combination of standard (covariant) simulation, its contravariant counterpart and bisimulation. We have previously studied its logical characterization by means of the covariant-contravariant modal logic. Moreover, we have investigated the relationships between this model and that of modal transition systems, where two kinds of transitions (the so-called may and must transitions) were combined in order to obtain a simple framework to express a notion of refinement over state-transition models. In a classic paper, Boudol and Larsen established a precise connection between the graphical approach, by means of modal transition systems, and the logical approach, based on Hennessy-Milner logic without negation, to system specification. They obtained a (graphical) representation theorem proving that a formula can be represented by a term if, and only if, it is consistent and prime. We show in this paper that the formulae from the covariant-contravariant modal logic that admit a "graphical" representation by means of processes, modulo the covariant-contravariant simulation preorder, are also the consistent and prime ones. In order to obtain the desired graphical representation result, we first restrict ourselves to the case of covariant-contravariant systems without bivariant actions. Bivariant actions can be incorporated later by means of an encoding that splits each bivariant action into its covariant and its contravariant parts.
description: In Proceedings EXPRESS 2011, arXiv:1108.4077
Additional file 2 of Evaluation of different approaches for missing data imputation on features associated to genomic data
Creators: name: Petrazzini, Ben Omega
name: Naya, Hugo
name: Lopez-Bello, Fernando
name: Vazquez, Gustavo
name: Spangenberg, Lucía
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Table S2.
Improved Cerebral Perfusion Imaging Parameter Selection for Dynamic Contrast-Enhanced Magnetic Resonance
Creators: name: Lee, Estee
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Engineering--Biomedical
subject: Magnetic Resonance Imaging
subject: cerebral perfusion
subject: dynamic contrast-enhanced imaging
subject: image acquisition parameter selection

description: Dynamic contrast-enhanced (DCE) magnetic resonance (MR) imaging is a standard method for assessing perfusion outside the brain and blood brain barrier permeability. Recent findings have shown that DCE imaging also has potential for acquiring and generating robust and reliable quantitative cerebral perfusion. However, DCE imaging displays low signal differences (ΔS) induced by relaxation-enhancing effects of intravascular gadolinium-based contrast agents in brain tissue. This thesis outlines investigations to improve DCE MR cerebral perfusion imaging by simulating tissue using the spoiled gradient recalled echo (SPGR) model to appropriately select image acquisition parameters to increase ΔS and decrease signal noise. A set of improved imaging parameters (selected via the SPGR model) implemented in experiments performed on a phantom and whole-brain DCE MR imaging on six subjects resulted in a significant increase in ΔS (compared to conventional imaging parameters). Preliminary cerebral blood flow maps were generated from the acquired data.
Additional file 3 of Evaluation of different approaches for missing data imputation on features associated to genomic data
Creators: name: Petrazzini, Ben Omega
name: Naya, Hugo
name: Lopez-Bello, Fernando
name: Vazquez, Gustavo
name: Spangenberg, Lucía
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Figure S3.
Sparidentex Munro 1948
Creators: name: Siddiqui, Pirzada Jamal
name: Amir, Shabir Ali
name: Masroor, Rafaqat
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Perciformes
Sparidae
Sparidentex

description: Genus Sparidentex Munro, 1948
 Sparidentex Munro, 1948: 275 –280.
 Diagnosis. Body compressed and little bit cylindrical. Mouth somewhat oblique. Dorsal-fin spines strong, normally graduate, not filamentous. In front of both jaws, 4–6 conical fang-like teeth, followed by 2–5 rows of villi-form teeth. Molar or molar like teeth lacking. Preopercular flange and interorbital naked. 5½ or less scale rows between 5th dorsal-fin spine base to lateral line. Anal-fin spine moderate to strong. Two valid species, both in Pakistani waters.
description: Published as part of Siddiqui, Pirzada Jamal, Amir, Shabir Ali & Masroor, Rafaqat, 2014, The sparid fishes of Pakistan, with new distribution records, pp. 71-100 in Zootaxa 3857 (1) on page 89, DOI: 10.11646/zootaxa.3857.1.3, http://zenodo.org/record/228181
North Korea in the socialist world : integration and divergence, 1945-1970. The crossroads of politics and economics
Creators: name: Agov, Avram Asenov
Publisher: name: University of British Columbia
Year: 2010

description: This thesis investigates the background behind the resilience of North Korean system, one which has endured numerous shocks and upheavals in its history. The era from 1945 to 1970 was decisive in the formation of North Korea’s domestic system; it also provides sufficient perspective to examine the major trends in the evolution of North Korea’s political and economic structure. The thesis analyzes DPRK history from the perspective of the regime’s internal and external integration into the socialist system, as well as efforts to diverge from that system. The dynamics of integration and divergence relate to the commonalities and distinctiveness of North Korea’s political and economic structure compared to other socialist countries, mainly the Soviet Union and China. This thesis studies the formation and evolution of North Korea’s political economy and defines its uniqueness within the socialist system. Socialist aid and trade are one focus of the study. We analyze four realms of relationships – ideology, politics, economy, and security. The northern regime’s ideological positioning was closely linked to North Korea’s nationalist course and to the regime’s divergence from the socialist system; economic considerations and security imperatives, by contrast, tended to push the regime toward the socialist world. The thesis defines North Korea’s place in the socialist world from the view point of the interaction between politics and economics. It argues that despite North Korea’s ideological and political divergences from the socialist system based on the Chuch’e (self-reliance) paradigm, the regime remained more integrated economically than is usually perceived. This factor is one of the main reasons for the DPRK’s ability to withstand the blow of the Soviet collapse, for it retained considerable economic ties to China. During the 1945-1970 era, North Korea occasionally deviated from one or another of its two major allies, but it never distanced itself from both the Soviet Union and the People’s Republic of China simultaneously. The DPRK also tried to compensate reductions in its interactions with one major ally or camp, including the Eastern bloc, by nurturing more active relations with capitalist states. This trend represents an important consistency in North Korea’s history.
On the misalignment of the directly imaged planet β Pictoris b with the system's warped inner disk
Creators: name: Dawson, Rebekah I.
name: Murray-Clay, Ruth A.
name: Fabrycky, Daniel C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The vertical warp in the debris disk Beta Pictoris -- an inclined inner disk extending into a flat outer disk -- has long been interpreted as the signpost of a planet on an inclined orbit. Direct images spanning 2004-2010 have revealed Beta Pictoris b, a planet with a mass and orbital distance consistent with this picture. However, it was recently reported that the orbit of planet b is aligned with the flat outer disk, not the inclined inner disk, and thus lacks the inclination to warp the disk. We explore three scenarios for reconciling the apparent misalignment of the directly imaged planet Beta Pictoris b with the warped inner disk of Beta Pictoris: observational uncertainty, an additional planet, and damping of planet b's inclination. We find that, at the extremes of the uncertainties, the orbit of Beta Pictoris b has the inclination necessary to produce the observed warp. We also find that if planet b were aligned with the flat outer disk, it would prevent another planet from creating a warp with the observed properties; therefore planet b itself must be responsible for the warp. Finally, planet b's inclination could have been damped by dynamical friction and still produce the observed disk morphology, but the feasibility of damping depends on disk properties and the presence of other planets. More precise observations of the orbit of planet b and the position angle of the outer disk will allow us to distinguish between the first and third scenario.
description: 6 pages, 4 figures; accepted for publication in the Astrophysical Journal Letters. Update: Compressed figures and published as ApJL 743, L17
Isogeometric Multi-Resolution Full Waveform Inversion based on the Finite Cell Method
Creators: name: Bürchner, Tim
name: Kopp, Philipp
name: Kollmannsberger, Stefan
name: Rank, Ernst
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: Full waveform inversion (FWI) is an iterative identification process that serves to minimize the misfit of model-based simulated and experimentally measured wave field data, with the goal of identifying a field of parameters for a given physical object. The inverse optimization process of FWI is based on forward and backward solutions of the (elastic or acoustic) eave equation. In a previous paper [1], we explored opportunities of using the finite cell method (FCM) as the wave field solver to incorporate highly complex geometric models. Furthermore, we demonstrated that the identification of the model's density outperforms that of the velocity -- particularly in cases where unknown voids characterized by homogeneous Neumann boundary conditions need to be detected. The paper at hand extends this previous study: The isogeometric finite cell analysis (IGA-FCM) -- a combination of isogeometric analysis (IGA) and FCM -- is applied for the wave field solver, with the advantage that the polynomial degree and subsequently also the sampling frequency of the wave field can be increased quite easily. Since the inversion efficiency strongly depends on the accuracy of the forward and backward wave field solution and of the gradient of the functional, consistent and lumped mass matrix discretization are compared. The resolution of the grid describing the unknown material density is the decouple from the knot span grid. Finally, we propose an adaptive multi-resolution algorithm that refines the material grid only locally using an image processing-based refinement indicator. The developed inversion framework allows fast and memory-efficient wave simulation and object identification. While we study the general behavior of the proposed approach on 2D benchmark problems, a final 3D problem shows that it can also be used to identify voids in geometrically complex spatial structures.
description: 19 pages, 14 figures
Nuclear structure study with core excitations in Ni region: for $fpg_{9/2}$ space
Creators: name: Srivastava, P. C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Shell model calculations for Ni, Cu and Zn isotopes by modifying $fpg$ interaction due to Sorlin {\it et. al.,} [Phys. Rev. Lett. 88, 092501 (2002)] have been reported. In the present work 28 two body matrix elements of the earlier interaction have been modified. Present interaction is able to explain new experimental results for this region.
description: 17 pages, 13 figures. Accepted for publication in Modern Physics Letters A
Crowdsourcing subjective annotations using pairwise comparisons reduces bias and error compared to the majority-vote method
Creators: name: Narimanzadeh, Hasti
name: Badie-Modiri, Arash
name: Smirnova, Iuliia
name: Chen, Ted Hsuan Yun
Publisher: name: arXiv
Year: 2023
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: How to better reduce measurement variability and bias introduced by subjectivity in crowdsourced labelling remains an open question. We introduce a theoretical framework for understanding how random error and measurement bias enter into crowdsourced annotations of subjective constructs. We then propose a pipeline that combines pairwise comparison labelling with Elo scoring, and demonstrate that it outperforms the ubiquitous majority-voting method in reducing both types of measurement error. To assess the performance of the labelling approaches, we constructed an agent-based model of crowdsourced labelling that lets us introduce different types of subjectivity into the tasks. We find that under most conditions with task subjectivity, the comparison approach produced higher $f_1$ scores. Further, the comparison approach is less susceptible to inflating bias, which majority voting tends to do. To facilitate applications, we show with simulated and real-world data that the number of required random comparisons for the same classification accuracy scales log-linearly $O(N \log N)$ with the number of labelled items. We also implemented the Elo system as an open-source Python package.
description: Accepted for publication at ACM CSCW 2023
Alternative splicing is affected by changes in DNA and histone methylation
Creators: name: Robertson, James Andrew
Publisher: name: University of British Columbia
Year: 2011

description: Alternative splicing (AS) increases transcript and proteomic diversity of intron containing genes and has emerged as a pervasive property of eukaryotic genes. DNA methylation is a regulator of gene expression which is present in many eukaryotes. Recently, chromatin structure and histone modifications have been shown to regulate AS in humans (1), but it is unknown if this also occurs in plants. Here, I investigated the regulatory role that DNA and histone methylation have on AS in Arabidopsis thaliana. I utilized the SR protein gene family as a model system to examine changes in isoform abundance in response to chemical inhibition of DNA and histone methylation using the histone deacetylase inhibitor Tricostatin A (TSA) and the DNA demethylating agent 5-Azadeoxycytidine (Azad). RT-PCR revealed that 12 SR genes had isoforms that had altered abundance in response to TSA and Azad-C. Antagonistic effects were found when both drugs were applied since changes in splicing were only seen for 10 of the SR genes. AS patterns of the SR genes are known to change according to organ and developmental stage (2) and DNA methylation is also known to change over the lifespan of the plant (3). I investigated if organ type and developmental patterns of AS are disrupted in a DNA hypermethylation mutant. Splicing patterns of the SR genes displayed tissue and developmental specific changes in the DNA hypermethylation mutant. Computational analysis of three different DNA methylation mutants was performed using a publically available Illumina dataset (4). Widespread changes in AS was detected in each of the mutants across all types of AS. Changes in methylcytosine content within the coding region of the gene did not account for a large proportion of the novel AS events detected. Splice site sequence analysis of introns uniquely retained in each of the mutant genotypes uncovered sequence changes around the functionally important sequence elements. The results of my thesis indicate for the first time that AS in plants is regulated in part by changes in DNA methylation and histone modifications.
The wideband backend at the MDSCC in Robledo. A new facility for radio astronomy at Q- and K- bands
Creators: name: Rizzo, J. R.
name: Pedreira, A.
name: Gutiérrez, M.
name: Sotuela, I.
name: Larrañaga, J. R.
name: Ojalvo, L.
name: Franco, M.
name: Cernicharo, J.
name: Miró, C. García
name: Cerón, J. M. Castro
name: Kuiper, T. B. H.
name: Vázquez, M.
name: Calvo, J.
name: Baquero, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The antennas of NASA's Madrid Deep Space Communications Complex (MDSCC) in Robledo de Chavela are available as single-dish radio astronomical facilities during a significant percentage of their operational time. Current instrumentation includes two antennas of 70 and 34 m in diameter, equipped with dual-polarization receivers in K (18 - 26 GHz) and Q (38 - 50 GHz) bands, respectively. We have developed and built a new wideband backend for the Robledo antennas, with the objectives (1) to optimize the available time and enhance the efficiency of radio astronomy in MDSCC; and (2) to tackle new scientific cases impossible to that were investigated with the old, narrow-band autocorrelator. The backend consists of an IF processor, a FFT spectrometer (FFTS), and the software that interfaces and manages the events among the observing program, antenna control, the IF processor, the FFTS operation, and data recording. The whole system was end-to-end assembled in August 2011, at the start of commissioning activities, and the results are reported in this paper. Frequency tunings and line intensities are stable over hours, even when using different synthesizers and IF channels; no aliasing effects have been measured, and the rejection of the image sideband was characterized. The first setup provides 1.5 GHz of instantaneous bandwidth in a single polarization, using 8192 channels and a frequency resolution of 212 kHz; upgrades under way include a second FFTS card, and two high-resolution cores providing 100 MHz and 500 MHz of bandwidth, and 16384 channels. These upgrades will permit simultaneous observations of the two polarizations with instantaneous bandwidths from 100 MHz to 3 GHz, and spectral resolutions from 7 to 212 kHz.
description: 9 pages, 8 figures. Accepted to Astronomy and Astrophysics
Studying the Fatigue Strength in the VHCF Regime of an Epoxy used for Fiber-Reinforced Polymers
Creators: name: Rosemeier, Malo
name: Toasa Caiza, Paul Dario
Publisher: name: Zenodo
Year: 2023

description: The fatigue life of structures composed of fiber-reinforced polymers (FRPs), such as wind turbine blades, is significantly influenced by the polymer matrix behavior. These matrices are exposed to over 100 million loading cycles with diverse combinations of mean stresses and stress amplitudes throughout the blades' operational life of at least two decades. For this purpose, experimental data of an epoxy polymer, commonly utilized as the matrix material in FRPs, have been studied and evaluated. The data set includes stress ratios of R=−1 and R=0.1 (Fig. 1). The epoxy's stress-life was estimated by using different approaches: the Weibull model suggested by Castillo and Fernández-Canteli [1], the Stüssi model proposed by Toasa Caiza et al. [2] and the Stüssi-Boerstra model as proposed by Rosemeier and Antoniou [3]. The first model allows to estimate the fatigue limit, even though it does not allow to describe the fatigue behavior in the LCF regime. The last two models are suitable to take into account the stress ratio influence. Despite the acceptable and sometimes similar results within the experimental frame, the emphasis of applying these models is on predicting the fatigue behavior in the VHCF regime, where their outcomes diverge considerably. These results deserve to be analyzed and discussed properly.
[1] Castillo, E. and Fernández-Canteli, A., 2009. A unified statistical methodology for modeling fatigue damage. Springer Dordrecht. https://doi.org/10.1007/978-1-4020-9182-7
[2] Toasa Caiza, P.D., Sire, S., Ummenhofer, T. and Uematsu, Y., 2022. Full and partial compression fatigue tests on welded specimens of steel St 52-3. Effects of the stress ratio on the probabilistic fatigue life estimation. Applications in Engineering Science, 10, p.100091.
[3] Rosemeier, M. and Antoniou, A., 2022. Probabilistic approach for the fatigue strength prediction of polymers. AIAA Journal, 60(2), pp.951-961. https://doi.org/10.2514/1.J060444
Additional file 4 of Evaluation of different approaches for missing data imputation on features associated to genomic data
Creators: name: Petrazzini, Ben Omega
name: Naya, Hugo
name: Lopez-Bello, Fernando
name: Vazquez, Gustavo
name: Spangenberg, Lucía
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Table S4.
Non-WKB Models of the FIP Effect: The Role of Slow Mode Waves
Creators: name: Laming, J. Martin
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: A model for element abundance fractionation between the solar chromosphere and corona is further developed. The ponderomotive force due to Alfven waves propagating through, or reflecting from the chromosphere in solar conditions generally accelerates chromospheric ions, but not neutrals, into the corona. This gives rise to what has become known as the First Ionization Potential (FIP) Effect. We incorporate new physical processes into the model. The chromospheric ionization balance is improved, and the effect of different approximations is discussed. We also treat the parametric generation of slow mode waves by the parallel propagating Alfven waves. This is also an effect of the ponderomotive force, arising from the periodic variation of the magnetic pressure driving an acoustic mode, which adds to the background longitudinal pressure. This can have subtle effects on the fractionation, rendering it quasi-mass independent in the lower regions of the chromosphere. We also briefly discuss the change in the fractionation with Alfven wave frequency, relative to the frequency of the overlying coronal loop resonance.
description: 32 pages, 8 figures, accepted by ApJ
Traveling wave deceleration of heavy polar molecules in low-field seeking states
Creators: name: Bulleid, N. E.
name: Hendricks, R. J.
name: Hinds, E. A.
name: Meek, Samuel A.
name: Meijer, Gerard
name: Osterwalder, Andreas
name: Tarbutt, M. R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We demonstrate the deceleration of heavy polar molecules in low-field seeking states by combining a cryogenic source and a travelling-wave Stark decelerator. The cryogenic source provides a high intensity beam with low speed and temperature, and the travelling-wave decelerator provides large deceleration forces and high phase-space acceptance. We prove these techniques using YbF molecules and find the experimental data to be in excellent agreement with numerical simulations. These methods extend the scope of Stark deceleration to a very wide range of molecules.
description: 5 pages, 4 figures
High-field phase diagram of the chiral-lattice antiferromagnet Sr(TiO)Cu4(PO4)4
Creators: name: Nomura, Toshihiro
name: Kato, Yasuyuki
name: Motome, Yukitoshi
name: Miyake, Atsushi
name: Tokunaga, Masashi
name: Kohama, Yoshimitsu
name: Zherlitsyn, Sergei
name: Wosnitza, Joachim
name: Kimura, Shojiro
name: Katsuyoshi, Tsukasa
name: Kimura, Tsuyoshi
name: Kimura, Kenta
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: High-field phase diagram of a chiral-lattice antiferromagnet Sr(TiO)Cu4(PO4)4 is studied by means of the ultrasound, dielectric, and magnetocaloric-effect measurements. These experimental techniques reveal two new phase transitions at high fields, which have not been resolved by the previous magnetization experiments. Specifically, the c66 acoustic mode shows drastic changes with hysteresis with applied fields along the c axis, indicating a strong magneto-elastic coupling. Combined with the cluster mean-field theory, we discuss the origins of these phase transitions. By considering the chiral-twist effect of Cu4O12 cupola units, which is inherent to the chiral crystal structure, the phase diagram is reasonably reproduced. The agreement between the experiment and theory suggests that this material is a unique quasi two-dimensional spin system with competing exchange interactions and chirality, leading to the rich phase diagram.
description: 12 pages, 11 figures, 1 table
Shaping Single Photons through Multimode Optical Fibers using Mechanical Perturbations
Creators: name: Shekel, Ronen
name: Lib, Ohad
name: Gutiérrez-Cuevas, Rodrigo
name: Popoff, Sébastien M.
name: Ling, Alexander
name: Bromberg, Yaron
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The capacity of information delivered by single photons is boosted by encoding high-dimensional quantum dits in their transverse shape. Transporting such high-dimensional quantum dits in optical networks may be accomplished using multimode optical fibers, which support the low-loss transmission of multiple spatial modes over existing infrastructure. However, when photons propagate through a multimode fiber their transverse shape gets scrambled because of mode mixing and modal interference. This is usually corrected using free-space spatial light modulators, inhibiting a robust all-fiber operation. In this work, we demonstrate an all-fiber approach for controlling the shape of single photons and the spatial correlations between entangled photon pairs, using carefully controlled mechanical perturbations of the fiber. We optimize these perturbations to localize the spatial distribution of a single photon or the spatial correlations of photon pairs in a single spot, enhancing the signal in the optimized spot by over an order of magnitude. Using the same approach we show a similar enhancement for coupling light from a multimode fiber into a single-mode fiber.
Experimental Investigation of the Transition between Autler-Townes Splitting and Electromagnetically-Induced Transparency
Creators: name: Giner, L.
name: Veissier, L.
name: Sparkes, B.
name: Sheremet, A. S.
name: Nicolas, A.
name: Mishina, O. S.
name: Scherman, M.
name: Burks, S.
name: Shomroni, I.
name: Kupriyanov, D. V.
name: Lam, P. K.
name: Giacobino, E.
name: Laurat, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Two phenomena can affect the transmission of a weak signal field through an absorbing medium in the presence of a strong additional field: electromagnetically induced transparency (EIT) and Autler-Townes splitting (ATS). Being able to discriminate between the two is important for various applications. Here we present an experimental investigation into a method that allows for such a disambiguation as proposed in [Phys. Rev. Lett. 107, 163604 (2011)]. We apply the proposed test based on Akaike's information criterion to a coherently driven ensemble of cold cesium atoms and find a good agreement with theoretical predictions, therefore demonstrating the suitability of the method. Additionally, our results demonstrate that the value of the Rabi frequency for the ATS/EIT model transition in such a system depends on the level structure and on the residual inhomogeneous broadening.
Noise and dissipation on a moving mirror induced by the dynamical Casimir emission
Creators: name: Butera, Salvatore
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We adopt an open quantum system approach to study the effects of the back-reaction from a quantum field onto the dynamics of a moving mirror. We describe the coupling between the mirror and the field by using a microscopic model from which the dielectric response of the mirror is obtained from first principles. Using second-order perturbation theory, we derive the master equation governing the mechanical motion of the mirror. Our analysis reveals that the mirror experiences coloured noise and non-local dissipation, which originate from the emission of particle pairs via the dynamical Casimir effect. We show that the noise and dissipation kernels, that enter in the definition of the time-dependent coefficients of the master equation, are related by fluctuation-dissipation relations.
description: 16 pages, 2 figures. Submitted to Journal of Physics: Photonics, as part of Emerging Leaders 2023 Collection