cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Signs of late infall and possible planet formation around DR Tau using VLT/SPHERE and LBTI/LMIRCam
Creators: name: Mesa, D.
name: Ginski, C.
name: Gratton, R.
name: Ertel, S.
name: Wagner, K.
name: Bonavita, M.
name: Fedele, D.
name: Meyer, M.
name: Henning, T.
name: Langlois, M.
name: Garufi, A.
name: Antoniucci, S.
name: Claudi, R.
name: Defrere, D.
name: Desidera, S.
name: Janson, M.
name: Pawellek, N.
name: Rigliaco, E.
name: Squicciarini, V.
name: Zurlo, A.
name: Boccaletti, A.
name: Bonnefoy, M.
name: Cantalloube, F.
name: Chauvin, G.
name: Feldt, M.
name: Hagelberg, J.
name: Hugot, E.
name: Lagrange, A. -M.
name: Lazzoni, C.
name: Maurel, D.
name: Perrot, C.
name: Petit, C.
name: Rouan, D.
name: Vigan, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. Protoplanetary disks around young stars often contain substructures like rings, gaps, and spirals that could be caused by interactions between the disk and forming planets. Aims. We aim to study the young (1-3 Myr) star DR Tau in the near-infrared and characterize its disk, which was previously resolved through sub-millimeter interferometry with ALMA, and to search for possible sub-stellar companions embedded into it. Methods. We observed DR Tau with VLT/SPHERE both in polarized light (H broad band) and total intensity (in Y, J, H, and K spectral bands). We also performed L' band observations with LBTI/LMIRCam on the Large Binocular Telescope (LBT). Results. We found two previously undetected spirals extending north-east and south of the star, respectively. We further detected an arc-like structure north of the star. Finally a bright, compact and elongated structure was detected at separation of 303 +/- 10 mas and position angle 21.2 +/- 3.7 degrees, just at the root of the north-east spiral arm. Since this feature is visible both in polarized light and in total intensity and has a flat spectrum it is likely caused by stellar light scattered by dust. Conclusions. The two spiral arms are at different separation from the star, have very different pitch angles, and are separated by an apparent discontinuity, suggesting they might have a different origin. The very open southern spiral arm might be caused by infalling material from late encounters with cloudlets into the formation environment of the star itself. The compact feature could be caused by interaction with a planet in formation still embedded in its dust envelope and it could be responsible for launching the north-east spiral. We estimate a mass of the putative embedded object of the order of few M_Jup .
description: 13 pages, 11 Figures. Accepted for publications on A&A
Snake-oil, quack medicine, and industrially cultured organisms: Biovalue and the commercialization of human microbiome research
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2012
Subjects: Awareness
Commerce
Dietary Supplements
Drug Industry
Ethics, Research
Humans
Metagenome
Probiotics
Public Health
Public Opinion
Quackery
Research
Technology Transfer

description: Background: Continued advances in human microbiome research and technologies raise a number of ethical, legal, and social challenges. These challenges are associated not only with the conduct of the research, but also with broader implications, such as the production and distribution of commercial products promising maintenance or restoration of good physical health and disease prevention. In this article, we document several ethical, legal, and social challenges associated with the commercialization of human microbiome research, focusing particularly on how this research is mobilized within economic markets for new public health uses. Methods. We conducted in-depth, semi-structured interviews (2009-2010) with 63 scientists, researchers, and National Institutes of Health project leaders (investigators) involved with human microbiome research. Interviews explored a range of ethical, legal, and social dimensions of human microbiome research, including investigators perspectives on commercialization. Using thematic content analysis, we identified and analyzed emergent themes and patterns. Results: Investigators discussed the commercialization of human microbiome research in terms of (1) commercialization, probiotics, and issues of safety, (2) public awareness of the benefits and risks of dietary supplements, and (3) regulation. Conclusion: The prevailing theme of ethical, legal, social concern focused on the need to find a balance between the marketplace, scientific research, and the publics health. The themes we identified are intended to serve as points for discussions about the relationship between scientific research and the manufacture and distribution of over-the-counter dietary supplements in the United States. © 2012 Slashinski et al.; licensee BioMed Central Ltd.
Localizzazione della topoisomerasi IB sui telomeri di S. cerevisiae e ruolo della sua attività catalitica sulle modificazioni istoniche
Creators: name: Russo, Alessandra <1979>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2007
Subjects: BIO/11 Biologia molecolare

description: Il superavvolgimento del DNA nelle cellule, regolato dalle DNA Topoisomerasi,
influenza molti processi biologici, quali la trascrizione, la replicazione, la
ricombinazione ed il rimodellamento della cromatina. La DNA Topoisomerasi IB
eucariotica, (Top1), è un enzima efficiente nella rimozione dei superavvolgimenti del
DNA in vitro e la sua principale funzione cellulare è la rimozione dei superavvolgimenti
positivi e negativi generati durante la trascrizione e la replicazione.
Risultati recenti hanno fornito evidenze sperimentali del coinvolgimento di Top1
in meccanismi multipli di regolazione dell’espressione genica eucariotica, in particolare
nella fase di inizio e maturazione dei trascritti. Tuttavia, le funzioni di Top1 non sono
ancora state stabilite a livello globale. Pertanto, nella presente tesi di dottorato abbiamo
risposto a questa domanda con l’analisi dei profili di trascrizione genica globale e con
studi di immunoprecipitazione della cromatina (ChIP) in cellule di S. cerevisiae.
Circa il 9% dei geni sono influenzati da Top1, e l’analisi dei profili di espressione
mostra che Top1 wt aumenta l’utilizzo del glucosio e dei pathway per la produzione di
energia, con specifica diminuzione della trascrizione dei geni telomerici e subtelomerici.
Abbiamo inoltre dimostrato che Top1 wt, ma non il suo mutante inattivo,
aumenta la velocità di crescita cellulare nelle cellule di lievito studiate. Le analisi di
ChIP mostrano che, in confronto all’assenza dell’enzima, Top1 wt diminuisce
l’acetilazione dell’istone H4, compresa quella specifica della lisina 16, nel telomero
destro del cromosoma XIV mentre la mutazione che inattiva l’enzima aumenta in
maniera marcata l’acetilazione dell’istone H4 e la di-metilazione della lisina 4
dell’istone H3. Top1 wt incrementa anche il reclutamento di Sir3 nelle regioni di
confine della cromatina silenziata dello stesso telomero. Studi di immunoprecipitazione
indicano che l’enzima interagisce direttamente con la struttura della cromatina
telomerica poichè entrambe le proteine, quella wt e quella inattiva, sono localizzate
sulle ripetizioni telomeriche dei cromosomi di lievito.
Questi risultati dimostrano che Top1, una proteina non essenziale in lievito,
ottimizza i livelli globali dei trascritti per una crescita più efficiente di cellule in fase
esponenziale. Indagando il meccanismo che è alla base della specifica repressione dei
geni telomerici, abbiamo dimostrato che Top1 favorisce delle modifiche posttraduzionali
degli istoni che indicano una struttura della cromatina repressa nelle regioni
telomeriche.
The reactivity of methanimine radical cation (H$_2$CNH$^{+\cdot}$) and its isomer aminomethylene (HCNH$_2^{+\cdot}$) with C$_2$H$_4$
Creators: name: Sundelin, David
name: Ascenzi, Daniela
name: Richardson, Vincent
name: Alcaraz, Christian
name: Polášek, Miroslav
name: Romanzin, Claire
name: Thissen, Roland
name: Tosi, Paolo
name: Žabka, Jan
name: Geppert, Wolf D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Experimental and theoretical studies are presented on the reactivity of methanimine and aminomethylene cations with ethene. Selective isomer generation is performed via dissociative photoionization of suitable neutral precursors and reactive cross sections and branching ratios are measured as a function of photon and collision energies.
description: 15 pages, 6 figures, 2 Tables
The outcome of protoplanetary dust growth: pebbles, boulders, or planetesimals? I. Mapping the zoo of laboratory collision experiments
Creators: name: Güttler, Carsten
name: Blum, Jürgen
name: Zsom, Andras
name: Ormel, Chris W.
name: Dullemond, Cornelis P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The growth processes from protoplanetary dust to planetesimals are not fully understood. Laboratory experiments and theoretical models have shown that collisions among the dust aggregates can lead to sticking, bouncing, and fragmentation. However, no systematic study on the collisional outcome of protoplanetary dust has been performed so far so that a physical model of the dust evolution in protoplanetary disks is still missing. We intend to map the parameter space for the collisional interaction of arbitrarily porous dust aggregates. This parameter space encompasses the dust-aggregate masses, their porosities and the collision velocity. With such a complete mapping of the collisional outcomes of protoplanetary dust aggregates, it will be possible to follow the collisional evolution of dust in a protoplanetary disk environment. We use literature data, perform own laboratory experiments, and apply simple physical models to get a complete picture of the collisional interaction of protoplanetary dust aggregates. In our study, we found four different types of sticking, two types of bouncing, and three types of fragmentation as possible outcomes in collisions among protoplanetary dust aggregates. We distinguish between eight combinations of porosity and mass ratio. For each of these cases, we present a complete collision model for dust-aggregate masses between 10^-12 and 10^2 g and collision velocities in the range 10^-4 to 10^4 cm/s for arbitrary porosities. This model comprises the collisional outcome, the mass(es) of the resulting aggregate(s) and their porosities. We present the first complete collision model for protoplanetary dust. This collision model can be used for the determination of the dust-growth rate in protoplanetary disks.
description: accepted by Astronomy and Astrophysics
A New Probe of Relic Neutrino Clustering using Cosmogenic Neutrinos
Creators: name: Brdar, Vedran
name: Dev, P. S. Bhupal
name: Plestid, Ryan
name: Soni, Amarjit
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We propose a new probe of cosmic relic neutrinos (C$ν$B) using their resonant scattering against cosmogenic neutrinos. Depending on the lightest neutrino mass and the energy spectrum of the cosmogenic neutrino flux, a Standard Model vector meson (such as a hadronic $ρ$) resonance can be produced via $ν\barν$ annihilation. This leads to a distinct absorption feature in the cosmogenic neutrino flux at an energy solely determined by the meson mass and the neutrino mass, apart from redshift. By numerical coincidence, the position of the $ρ$-resonance overlaps with the originally predicted peak of the Greisen-Zatsepin-Kuzmin (GZK) neutrino flux, which offers an enhanced absorption effect at higher redshifts. We show that this absorption feature in the GZK neutrino flux may be observable in future radio-based neutrino observatories, such as IceCube-Gen2 radio, provided there exists a large overdensity in the C$ν$B distribution. This therefore provides a new probe of C$ν$B clustering at large redshifts, complementary to the laboratory probes (such as KATRIN) at zero redshift.
description: 8 pages, 4 figures, corrected prefactor in Eq. (5)
Collapse of dark states in Tavis-Cummings model
Creators: name: Afanasyev, Vitaliy
name: Ran, Chen
name: Ozhigov, Yuri
name: Jiangchuan, You
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The singlet state of a system of two two-level atoms changes smoothly, remaining dark, as the Hamiltonian TC is slowly deformed, despite the inapplicability of the adiabatic theorem to this case. In this case, there is a small probability of emission of free photons, which does not depend on the smoothness of the deformation of the Hamiltonian. The effect of spontaneous emission is enhanced by the addition of one more pair of atoms in the singlet state due to the exchange of virtual photons in the cavity. A similar effect was also established for the case when atoms can move between two cavities, but here, on the contrary, with an increase in the number of atoms, the emission decreases. This purely quantum effect must be taken into account in practical manipulations with atomic singlets; however, its weakness testifies, rather, to the stability of dark states and the prospects for their use in information exchange (quantum cryptographic protocols) and as an energy accumulator for nono-devices.
description: 15 pages, 14 figures
Bakhtiari, Leskinen and Torma Reply
Creators: name: Bakhtiari, M. Reza
name: Leskinen, M. J.
name: Törmä, P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: This is a Reply to: Comment on "Spectral Signatures of the Fulde-Ferrell-Larkin-Ovchinnikov Order Parameter in One-Dimensional Optical Lattices" R. A. Molina J. Dukelksy, and P. Schmitteckert, Phys. Rev. Lett. 102, 168901 (2009)
description: 1 page, published version
Sharing and re-use of phylogenetic trees (and associated data) to facilitate synthesis
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2012
Subjects: Biological Evolution
Computational Biology
Confidentiality
Cooperative Behavior
Databases, Genetic
Eukaryota
Humans
Information Dissemination
Intellectual Property
Phylogeny
Prokaryotic Cells
Publishing

description: Background: Recently, various evolution-related journals adopted policies to encourage or require archiving of phylogenetic trees and associated data. Such attention to practices that promote sharing of data reflects rapidly improving information technology, and rapidly expanding potential to use this technology to aggregate and link data from previously published research. Nevertheless, little is known about current practices, or best practices, for publishing trees and associated data so as to promote re-use. Findings. Here we summarize results of an ongoing analysis of current practices for archiving phylogenetic trees and associated data, current practices of re-use, and current barriers to re-use. We find that the technical infrastructure is available to support rudimentary archiving, but the frequency of archiving is low. Currently, most phylogenetic knowledge is not easily re-used due to a lack of archiving, lack of awareness of best practices, and lack of community-wide standards for formatting data, naming entities, and annotating data. Most attempts at data re-use seem to end in disappointment. Nevertheless, we find many positive examples of data re-use, particularly those that involve customized species trees generated by grafting to, and pruning from, a much larger tree. Conclusions: The technologies and practices that facilitate data re-use can catalyze synthetic and integrative research. However, success will require engagement from various stakeholders including individual scientists who produce or consume shareable data, publishers, policy-makers, technology developers and resource-providers. The critical challenges for facilitating re-use of phylogenetic trees and associated data, we suggest, include: a broader commitment to public archiving; more extensive use of globally meaningful identifiers; development of user-friendly technology for annotating, submitting, searching, and retrieving data and their metadata; and development of a minimum reporting standard (MIAPA) indicating which kinds of data and metadata are most important for a re-useable phylogenetic record. © 2012 Stoltzfus et al.; licensee BioMed Central Ltd.
Bulk induced boundary perturbations for N=1 superconformal field theories
Creators: name: Gaberdiel, Matthias R
name: Schlotterer, Oliver
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The N=1 superconformal circle theory consisting of a free boson and a free fermion is considered. At any radius the theory has standard Dirichlet and Neumann branes, but for rational radii there are additional superconformal boundary conditions that are labelled by elements in a quotient of SU(2). We analyse how these branes behave under the radius-changing bulk perturbation. As in the bosonic case, the bulk perturbation induces in general a boundary RG flow whose end-point is a superposition of Dirichlet or Neumann branes.
description: 13 pages, LaTeX
Open charm hadroproduction and the charm content of the proton
Creators: name: Kniehl, B. A.
name: Kramer, G.
name: Schienbein, I.
name: Spiesberger, H.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We advocate charmed-hadron inclusive hadroproduction as a laboratory to probe intrinsic charm (IC) inside the colliding hadrons. Working at next-to-leading order in the general-mass variable-flavor-number scheme endowed with non-perturbative fragmentation functions recently extracted from a global fit to e^+e^- annihilation data from KEKB, CESR, and LEP1, we first assess the sensitivity of Tevatron data of D^0, D^+, and D^{*+} inclusive production to the IC parameterizations provided by Pumplin et al. We then argue that similar data from pp collisions at RHIC would have the potential to discriminate between different IC models provided they reach out to sufficiently large values of transverse momentum.
description: 22 pages, 7 figures; discussion of large-p_T range at the Tevatron and high-energy mode of RHIC included, 2 figures added; accepted for publication in Phys. Rev. D
Absolute distance prediction based on deep learning object detection and monocular depth estimation models
Creators: name: Masoumian, Armin
name: Marei, David G. F.
name: Abdulwahab, Saddam
name: Cristiano, Julian
name: Puig, Domenec
name: Rashwan, Hatem A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Determining the distance between the objects in a scene and the camera sensor from 2D images is feasible by estimating depth images using stereo cameras or 3D cameras. The outcome of depth estimation is relative distances that can be used to calculate absolute distances to be applicable in reality. However, distance estimation is very challenging using 2D monocular cameras. This paper presents a deep learning framework that consists of two deep networks for depth estimation and object detection using a single image. Firstly, objects in the scene are detected and localized using the You Only Look Once (YOLOv5) network. In parallel, the estimated depth image is computed using a deep autoencoder network to detect the relative distances. The proposed object detection based YOLO was trained using a supervised learning technique, in turn, the network of depth estimation was self-supervised training. The presented distance estimation framework was evaluated on real images of outdoor scenes. The achieved results show that the proposed framework is promising and it yields an accuracy of 96% with RMSE of 0.203 of the correct absolute distance.
description: 10 pages, Submitted to 23rd International Conference of the Catalan Association for Artificial Intelligence (CCIA 2021)
High-resolution diffusion-weighted imaging at 7 Tesla: single-shot readout trajectories and their impact on signal-to-noise ratio, spatial resolution and accuracy
Creators: name: Feizollah, Sajjad
name: Tardif, Christine L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: Diffusion MRI (dMRI) is a valuable imaging technique to study the brain in vivo. However, the resolution of dMRI is limited by the low signal-to-noise ratio (SNR) of this technique. Various acquisition strategies have been developed to achieve high resolutions, but they require long scan times. Imaging at ultra-high fields (UHF) could further increase the SNR of single-shot dMRI; however, the shorter T2* and the greater field non-uniformities will degrade image quality. In this study, we investigated the trade-off between the SNR and resolution of different k-space trajectories, including echo planar imaging (EPI), partial Fourier EPI, and spiral, over a range of resolutions at 7T. The effective resolution, spatial specificity and sharpening effect were measured from the point spread function (PSF) of the simulated diffusion sequences for a nominal resolution range of 0.6-1.8 mm. In-vivo scans were acquired using the three readout trajectories. Field probes were used to measure dynamic magnetic fields up to the 3rd order of spherical harmonics. Using a static field map and the measured trajectories image artifacts were corrected, leaving T2* effects as the primary source of blurring. The effective resolution was examined in fractional anisotropy (FA) maps. In-vivo scans were acquired to calculate the SNR. EPI trajectories had the highest specificity, effective resolution, and image sharpening effect, but also had substantially lower SNR. Spirals had significantly higher SNR, but lower specificity. Line plots of the in-vivo scans in phase and frequency encode directions showed ~0.2 units difference in FA values between the different trajectories. The difference between the effective and nominal resolution is greater for spirals than for EPI. However, the higher SNR of spiral trajectories at UHFs allows us to achieve higher effective resolutions compared to EPI and PF-EPI trajectories.
A Spiroligomer α-Helix Mimic That Binds HDM2, Penetrates Human Cells and Stabilizes HDM2 in Cell Culture
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2012
Subjects: Binding Sites
Biological Transport
Cell Line, Tumor
Diffusion
Feedback, Physiological
Gene Expression
Hepatocytes
Humans
Imidazoles
Kinetics
Models, Molecular
Molecular Conformation
Molecular Mimicry
Piperazines
Protein Binding
Protein Stability
Protein Structure, Tertiary
Proto-Oncogene Proteins c-mdm2
Solid-Phase Synthesis Techniques
Spiro Compounds
Tumor Suppressor Protein p53

description: We demonstrate functionalized spiroligomers that mimic the HDM2-bound conformation of the p53 activation domain. Spiroligomers are stereochemically defined, functionalized, spirocyclic monomers coupled through pairs of amide bonds to create spiro-ladder oligomers [1]. Two series of spiroligomers were synthesized, one of structural analogs and one of stereochemical analogs, from which we identified compound 1, that binds HDM2 with a Kd value of 400 nM. The spiroligomer 1 penetrates human liver cancer cells through passive diffusion and in a dose-dependent and time-dependent manner increases the levels of HDM2 more than 30-fold in Huh7 cells in which the p53/HDM2 negative feed-back loop is inoperative. This is a biological effect that is not seen with the HDM2 ligand nutlin-3a. We propose that compound 1 modulates the levels of HDM2 by stabilizing it to proteolysis, allowing it to accumulate in the absence of a p53/HDM2 feedback loop. © 2012 Brown et al.
The association between marital transitions, body mass index, and weight: A review of the literature
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2012
Subjects: 1117 Public Health and Health Services
Population & Society
Behavioral and Social Science
Obesity
Nutrition

description: Objective. To examine the association between different marital transitions and changes in body mass index (BMI) and body weight. Methods. A systematic literature search was conducted for peer-reviewed articles published between January 1990 and December 2011. Longitudinal studies were included if they compared dependent variables, such as BMI or weight, before and after a change in marital status. Results. Twenty articles were included: 4 articles described only transitions into marriage and/or cohabitation, 2 articles described only transitions out of marriage and/or cohabitation, and 14 articles described both. Overall, transitions into marriage were associated with weight gain, whereas transitions out of marriage were associated with weight loss. No major differences were observed between genders or across specific marital transition states. Conclusions. Additional research is warranted to better understand this phenomenon and the impact of marital transitions on obesity and obesity-related behaviors. This paper highlights potential opportunities to incorporate programs, practices, and policies that aim to promote and support healthy weights and lifestyles upon entering or leaving a marriage or cohabiting relationship. © 2012 Lauren Dinour et al.
Derivation of reduced two-dimensional fluid models via Dirac's theory of constrained Hamiltonian systems
Creators: name: Chandre, Cristel
name: Tassi, Emanuele
name: Morrison, Philip J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We present a Hamiltonian derivation of a class of reduced plasma two-dimensional fluid models, an example being the Charney-Hasegawa-Mima equation. These models are obtained from the same parent Hamiltonian model, which consists of the ion momentum equation coupled to the continuity equation, by imposing dynamical constraints. It is shown that the Poisson bracket associated with these reduced models is the Dirac bracket obtained from the Poisson bracket of the parent model.
On the backreaction of frame dragging
Creators: name: Herdeiro, Carlos A. R.
name: Rebelo, Carmen
name: Warnick, Claude M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The backreaction on black holes due to dragging heavy, rather than test, objects is discussed. As a case study, a regular black Saturn system where the central black hole has vanishing intrinsic angular momentum, J^{BH}=0, is considered. It is shown that there is a correlation between the sign of two response functions. One is interpreted as a moment of inertia of the black ring in the black Saturn system. The other measures the variation of the black ring horizon angular velocity with the central black hole mass, for fixed ring mass and angular momentum. The two different phases defined by these response functions collapse, for small central black hole mass, to the thin and fat ring phases. In the fat phase, the zero area limit of the black Saturn ring has reduced spin j^2>1, which is related to the behaviour of the ring angular velocity. Using the `gravitomagnetic clock effect', for which a universality property is exhibited, it is shown that frame dragging measured by an asymptotic observer decreases, in both phases, when the central black hole mass increases, for fixed ring mass and angular momentum. A close parallelism between the results for the fat phase and those obtained recently for the double Kerr solution is drawn, considering also a regular black Saturn system with J^{BH}\neq 0.
description: 18 pages, 8 figures
Parental influences on children's self-regulation of energy intake: Insights from developmental literature on emotion regulation
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2012

description: The following article examines the role of parents in the development of children's self-regulation of energy intake. Various paths of parental influence are offered based on the literature on parental influences on children's emotion self-regulation. The parental paths include modeling, responses to children's behavior, assistance in helping children self-regulate, and motivating children through rewards and punishments. Additionally, sources of variation in parental influences on regulation are examined, including parenting style, child temperament, and child-parent attachment security. Parallels in the nature of parents' role in socializing children's regulation of emotions and energy intake are examined. Implications for future research are discussed. © 2012 Leslie A. Frankel et al.
Spin density wave dislocation in chromium probed by coherent x-ray diffraction
Creators: name: Jacques, V. L. R.
name: Bolloc'h, D. Le
name: Ravy, S.
name: Livet, C. Giles F.
name: Wilkins, S. B.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report on the study of a magnetic dislocation in pure chromium. Coherent x-ray diffraction profiles obtained on the incommensurate Spin Density Wave (SDW) reflection are consistent with the presence of a dislocation of the magnetic order, embedded at a few micrometers from the surface of the sample. Beyond the specific case of magnetic dislocations in chromium, this work may open up a new method for the study of magnetic defects embedded in the bulk.
description: 8 pages, 7 figures
Generalised scalar-tensor theories of gravity and pressure profiles of galaxy clusters
Creators: name: Haridasu, Balakrishna S.
name: Karmakar, Purnendu
name: De Petris, Marco
name: Cardone, Vincenzo F.
name: Maoli, Roberto
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In the current proceedings, we summarise the results presented during the mm Universe@NIKA2 conference, taken from our main results in \cite{Haridasu:2021hzq}. We test the Degenerate higher-order scalar-tensor(DHOST) theory as a generalised platform for scalar-tensor theory at galaxy cluster scales to predict in such static systems small scale modification to the gravitational potential. {DHOST theory is not only a good alternative to $Λ$CDM for the background evolution but also predicts small-scale modification to the gravitational potential in static systems such as galaxy clusters.} With a sample of 12 clusters with accurate X-ray Intra Cluster Medium (ICM) data (X-COP project) and Sunyaev-Zel'dovich (SZ) ICM pressure (Planck satellite), we place preliminary constraints on the DHOST parameters defining the deviation from GR. Moreover, we also collect a few supplementary analyses we have performed during the course: i) Gaussian process reconstruction without parametric assumptions, ii) $\Psz$-only data analysis not aided by the X-ray data. Finally, we present possible extensions to the current work which may benefit from future high sensitivity and spatial resolution observations such as the ongoing NIKA2 camera.
description: To appear in the Proceedings of the International Conference entitled "mm Universe @ NIKA2", Rome (Italy), June 2021, EPJ Web of conferences
Sleep duration and weight loss among overweight/obese women enrolled in a behavioral weight loss program
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2012
Subjects: sleep
behavioral treatment
weight loss
incontinence

description: OBJECTIVE: The purpose of this study was to examine whether baseline sleep duration predicts weight loss outcomes in a randomized controlled trial examining a behavioral weight loss (BWL) intervention among overweight and obese (OW/OB) women with urinary incontinence; and whether participation in the BWL intervention is associated with changes in sleep duration. DESIGN: Longitudinal, clinical intervention study of a 6-month BWL program. SUBJECTS: Three hundred sixteen OW/OB women, with urinary incontinence (age: 30-81 years, body mass index (BMI; 25-50 kgm-2) enrolled from July 2004-April 2006. MEASUREMENTS: Measured height and weight, self-report measures of demographics, sleep and physical activity. RESULTS: Neither self-reported total sleep time (TST) nor time in bed (TIB) at baseline significantly predicted weight loss outcomes among OW/OB women in a BWL treatment. BWL treatment was successful regardless of how much subjects reported sleeping at baseline, with an average weight loss of 8.19 kg for OW/OB women receiving BWL treatment, versus a weight loss of 1.44 kg in the control condition. Similarly, changes in weight, BMI and incontinence episodes did not significantly predict changes in sleep duration or TIB across the treatment period. CONCLUSION: Although epidemiological and cross-sectional studies support a relationship between short sleep and increased BMI, the present study found no significant relationship between TST or TIB and weight loss for OW/OB women participating in a BWL treatment. © 2012 Macmillan Publishers Limited. All rights reserved.
ME-GAN: Learning Panoptic Electrocardio Representations for Multi-view ECG Synthesis Conditioned on Heart Diseases
Creators: name: Chen, Jintai
name: Liao, Kuanlun
name: Wei, Kun
name: Ying, Haochao
name: Chen, Danny Z.
name: Wu, Jian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Electrocardiogram (ECG) is a widely used non-invasive diagnostic tool for heart diseases. Many studies have devised ECG analysis models (e.g., classifiers) to assist diagnosis. As an upstream task, researches have built generative models to synthesize ECG data, which are beneficial to providing training samples, privacy protection, and annotation reduction. However, previous generative methods for ECG often neither synthesized multi-view data, nor dealt with heart disease conditions. In this paper, we propose a novel disease-aware generative adversarial network for multi-view ECG synthesis called ME-GAN, which attains panoptic electrocardio representations conditioned on heart diseases and projects the representations onto multiple standard views to yield ECG signals. Since ECG manifestations of heart diseases are often localized in specific waveforms, we propose a new "mixup normalization" to inject disease information precisely into suitable locations. In addition, we propose a view discriminator to revert disordered ECG views into a pre-determined order, supervising the generator to obtain ECG representing correct view characteristics. Besides, a new metric, rFID, is presented to assess the quality of the synthesized ECG signals. Comprehensive experiments verify that our ME-GAN performs well on multi-view ECG signal synthesis with trusty morbid manifestations.
Correlated Electrostatic Mutations Provide a Reservoir of Stability in HIV Protease
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2012
Subjects: Amino Acid Sequence
Computer Simulation
Enzyme Stability
HIV Protease
Models, Chemical
Models, Genetic
Models, Molecular
Molecular Sequence Data
Mutation
Static Electricity
Statistics as Topic
Structure-Activity Relationship

description: HIV protease, an aspartyl protease crucial to the life cycle of HIV, is the target of many drug development programs. Though many protease inhibitors are on the market, protease eventually evades these drugs by mutating at a rapid pace and building drug resistance. The drug resistance mutations, called primary mutations, are often destabilizing to the enzyme and this loss of stability has to be compensated for. Using a coarse-grained biophysical energy model together with statistical inference methods, we observe that accessory mutations of charged residues increase protein stability, playing a key role in compensating for destabilizing primary drug resistance mutations. Increased stability is intimately related to correlations between electrostatic mutations - uncorrelated mutations would strongly destabilize the enzyme. Additionally, statistical modeling indicates that the network of correlated electrostatic mutations has a simple topology and has evolved to minimize frustrated interactions. The model's statistical coupling parameters reflect this lack of frustration and strongly distinguish like-charge electrostatic interactions from unlike-charge interactions for ≈90% of the most significantly correlated double mutants. Finally, we demonstrate that our model has considerable predictive power and can be used to predict complex mutation patterns, that have not yet been observed due to finite sample size effects, and which are likely to exist within the larger patient population whose virus has not yet been sequenced. © 2012 Haq et al.
Automatic code generation: from process algebraic architectural descriptions to multithreaded java programs
Creators: name: Bontà, Edoardo <1971>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2008
Subjects: INF/01 Informatica

description: Process algebraic architectural description languages provide a formal
means for modeling software systems and assessing their properties.
In order to bridge the gap between system modeling and system im-
plementation, in this thesis an approach is proposed for automatically
generating multithreaded object-oriented code from process algebraic
architectural descriptions, in a way that preserves – under certain
assumptions – the properties proved at the architectural level.
The approach is divided into three phases, which are illustrated
by means of a running example based on an audio processing
system. First, we develop an architecture-driven technique for
thread coordination management, which is completely automated
through a suitable package. Second, we address the translation
of the algebraically-specified behavior of the individual software
units into thread templates, which will have to be filled in by
the software developer according to certain guidelines. Third, we
discuss performance issues related to the suitability of synthesizing
monitors rather than threads from software unit descriptions that
satisfy specific constraints.
In addition to the running example, we present two case studies about
a video animation repainting system and the implementation of a
leader election algorithm, in order to summarize the whole approach.
The outcome of this thesis is the implementation of the proposed
approach in a translator called PADL2Java and its integration in the
architecture-centric verification tool TwoTowers.
Exploiting N=2 in consistent coset reductions of type IIA
Creators: name: Cassani, Davide
name: Kashani-Poor, Amir-Kian
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study compactifications of type IIA supergravity on cosets exhibiting SU(3) structure. We establish the consistency of the truncation based on left-invariance, providing a justification for the choice of expansion forms which yields gauged N=2 supergravity in 4 dimensions. We explore N=1 solutions of these theories, emphasizing the requirements of flux quantization, as well as their non-supersymmetric companions. In particular, we obtain a no-go result for de Sitter solutions at string tree level, and, exploiting the enhanced leverage of the N=2 setup, provide a preliminary analysis of the existence of de Sitter vacua at all string loop order.
description: 38 pages, 1 figure; v2: appendix on solving string loop corrected susy equations added, references added, typos corrected; v3: minor modifications
Inference of causal networks from time-varying transcriptome data via sparse coding
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2012
Subjects: Gene Expression Profiling
Genome-Wide Association Study
Humans
Radiation, Ionizing
Transcriptome

description: Temporal analysis of genome-wide data can provide insights into the underlying mechanism of the biological processes in two ways. First, grouping the temporal data provides a richer, more robust representation of the underlying processes that are co-regulated. The net result is a significant dimensional reduction of the genome-wide array data into a smaller set of vocabularies for bioinformatics analysis. Second, the computed set of time-course vocabularies can be interrogated for a potential causal network that can shed light on the underlying interactions. The method is coupled with an experiment for investigating responses to high doses of ionizing radiation with and without a small priming dose. From a computational perspective, inference of a causal network can rapidly become computationally intractable with the increasing number of variables. Additionally, from a bioinformatics perspective, larger networks always hinder interpretation. Therefore, our method focuses on inferring the simplest network that is computationally tractable and interpretable. The method first reduces the number of temporal variables through consensus clustering to reveal a small set of temporal templates. It then enforces simplicity in the network configuration through the sparsity constraint, which is further regularized by requiring continuity between consecutive time points. We present intermediate results for each computational step, and apply our method to a time-course transcriptome dataset for a cell line receiving a challenge dose of ionizing radiation with and without a prior priming dose. Our analyses indicate that (i) the priming dose increases the diversity of the computed templates (e.g., diversity of transcriptome signatures); thus, increasing the network complexity; (ii) as a result of the priming dose, there are a number of unique templates with delayed and oscillatory profiles; and (iii) radiation-induced stress responses are enriched through pathway and subnetwork studies. © 2012 Zhang et al.
Mossbauer neutrinos in quantum mechanics and quantum field theory
Creators: name: Kopp, Joachim
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We demonstrate the correspondence between quantum mechanical and quantum field theoretical descriptions of Mossbauer neutrino oscillations. First, we compute the combined rate $Γ$ of Mossbauer neutrino emission, propagation, and detection in quantum field theory, treating the neutrino as an internal line of a tree level Feynman diagram. We include explicitly the effect of homogeneous line broadening due to fluctuating electromagnetic fields in the source and detector crystals and show that the resulting formula for $Γ$ is identical to the one obtained previously (Akhmedov et al., arXiv:0802.2513) for the case of inhomogeneous line broadening. We then proceed to a quantum mechanical treatment of Mossbauer neutrinos and show that the oscillation, coherence, and resonance terms from the field theoretical result can be reproduced if the neutrino is described as a superposition of Lorentz-shaped wave packet with appropriately chosen energies and widths. On the other hand, the emission rate and the detection cross section, including localization and Lamb-Mossbauer terms, cannot be predicted in quantum mechanics and have to be put in by hand.
description: LaTeX, 16 pages, 1 figure; v2: typos corrected; matches published version
Line of Fixed Points in Gross-Neveu Theories
Creators: name: Cresswell-Hogg, Charlie
name: Litim, Daniel F.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the limit of many fermion flavors it is demonstrated that the sextic Gross-Neveu theory in three dimensions displays a line of interacting UV fixed points, characterised by an exactly marginal sextic interaction. We determine the conformal window of UV-complete theories, universal scaling dimensions, and the phase diagram using renormalisation group methods. Massless theories arise naturally, and the generation of mass proceeds without the breaking of a discrete symmetry. Striking similarities with critical scalar theories at large $N$ are highlighted, and implications from the viewpoint of conformal field theory and the AdS/CFT conjecture are indicated.
description: 6 pages, 4 figures; v2: reasoning and Fig. 2 improved, accepted for publication with Physical Review Letters
Illicit drug use by police: Informing the development of a framework for prevention and disruption
Creators: name: Scully, Lisa
Publisher: name: University of Southern Queensland
Year: 2025
Subjects: drugs
workplace safety
police use of drugs
police corruption
police integrity
police

description: Illicit drug use by police officers is a critical issue for contemporary policing organisations due to the high-risk nature of the profession and elevated integrity expectations of the community they serve. However, there is limited research surrounding illicit drug use by police. Drug management in the workplace is mainly grouped with alcohol misuse which has received far greater focus in previous studies surrounding police officer substance abuse. The aim of this study was to better understand the nature of the problem by exploring the behaviours and attitudes of 12 Queensland Police Service (QPS) officers detected using illicit drugs, with focus on identifying how best to approach the problem. The research was both explorative and descriptive in design. Secondary data were collected from investigative material, primarily interviews and questioning of officers, and an interpretive content analysis was used to analyse the text. The findings revealed three main themes: ‘Characteristics, behaviours and attitudes’, ‘Associated risk factors’, and ‘System issues’. The findings suggest cultural shift where officers can disassociate their off-duty illicit drug use from their obligations as a sworn QPS member. QPS’s current reactionary drug regulatory system provides limited deterrence. This paper combines academic research and investigations to inform QPS strategies for detecting and deterring illicit drug use by its employees. The findings of this research hold important implications for drug testing policy and procedures for QPS specifically, but also provide understanding for other policing jurisdictions regarding behaviours and attitudes of individual officers who have engaged in illicit drug use.