cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Webinar: TREX High Performance Software Solutions for Quantum Mechanical Simulations at the Exascale
Creators: name: Casula, Michele
name: Alavi, Ali
name: Pernal, Katarzyna
name: Nakano, Kosuke
name: Ammar, Abdallabh
name: Shinde, Ravindra
name: Giner, Emmanuel
name: Pittonet, Sara
Publisher: name: Zenodo
Year: 2024

description: Over the last three years, the TREX flagship codes have undergone significant enhancements, and demonstrated substantial improvements in various aspects. The code optimisations and parallelization techniques implemented have led to significant performance gains, enabling more efficient simulations and reducing the time required for calculations. The enhanced codes also exhibit improved scalability, allowing for simulations on larger systems and the exploration of more complex chemical and physical phenomena.

This webinar guides participants through the ultimate results and developments of the TREX flagship QMC codes, and the open-source libraries optimised for the upcoming Exascale transition.

Visit this link and learn about the TREX flagship QMC codes and get the chance to get support from our HPC & QMC codes experts: https://trex-coe.eu/trex-quantum-chemistry-codes
Origin of volatiles in the Main Belt
Creators: name: Mousis, Olivier
name: Alibert, Yann
name: Hestroffer, Daniel
name: Marboeuf, Ulysse
name: Dumas, Christophe
name: Carry, Benoit
name: Horner, Jonathan
name: Selsis, Franck
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We propose a scenario for the formation of the Main Belt in which asteroids incorporated icy particles formed in the outer Solar Nebula. We calculate the composition of icy planetesimals formed beyond a heliocentric distance of 5 AU in the nebula by assuming that the abundances of all elements, in particular that of oxygen, are solar. As a result, we show that ices formed in the outer Solar Nebula are composed of a mix of clathrate hydrates, hydrates formed above 50 K and pure condensates produced at lower temperatures. We then consider the inward migration of solids initially produced in the outer Solar Nebula and show that a significant fraction may have drifted to the current position of the Main Belt without encountering temperature and pressure conditions high enough to vaporize the ices they contain. We propose that, through the detection and identification of initially buried ices revealed by recent impacts on the surfaces of asteroids, it could be possible to infer the thermodynamic conditions that were present within the Solar Nebula during the accretion of these bodies, and during the inward migration of icy planetesimals. We also investigate the potential influence that the incorporation of ices in asteroids may have on their porosities and densities. In particular, we show how the presence of ices reduces the value of the bulk density of a given body, and consequently modifies its macro-porosity from that which would be expected from a given taxonomic type.
description: Accepted for publication in MNRAS
D9.1 – COGITO branding, website and social media channels
Creators: name: Mikołajczyk, Agnieszka
Publisher: name: Zenodo
Year: 2021

description: The scope of Deliverable “D9.1-COGITO branding, website and social media channels” is to present a report on dissemination and communication tools and activities undertaken from the very beginning of the project until M3. 

The current deliverable includes the following chapters:

Introduction – the scope, structure and relations of this deliverable to other deliverables within WP9 Dissemination, Exploitation & Standardization Activities. 

Branding of the Cogito project – a detailed description of branding materials (logotype, templates) that had been delivered to all consortium Partners to provide key visuals of the project.

Website development – detailed description of structure, content and layout.Social Media channels development – description of 3 social media channels launched: Twitter, LinkedIn, Facebook;

Conclusions – dissemination and communication plan for the 1st year of project duration (M4-M12) – an outline of the dissemination activities that will be performed during the project duration according to all promotional channels mentioned above.
Tidal Disruptions of Main Sequence Stars of Varying Mass and Age: Inferences from the Composition of the Fallback Material
Creators: name: Gallegos-Garcia, Monica
name: Law-Smith, Jamie
name: Ramirez-Ruiz, Enrico
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We use a simple framework to calculate the time evolution of the composition of the fallback material onto a supermassive black hole arising from the tidal disruption of main sequence stars. We study stars with masses between 0.8 and 3.0 $M_\odot$, at evolutionary stages from zero-age main sequence to terminal-age main sequence, built using the Modules for Experiments in Stellar Astrophysics code. We show that most stars develop enhancements in nitrogen ($^{14}$N) and depletions in carbon ($^{12}$C) and oxygen ($^{16}$O) over their lifetimes, and that these features are more pronounced for higher mass stars. We find that, in an accretion-powered tidal disruption flare, these features become prominent only after the time of peak of the fallback rate and appear at earlier times for stars of increasing mass. We postulate that no severe compositional changes resulting from the fallback material should be expected near peak for a wide range of stellar masses and, as such, are unable to explain the extreme helium-to-hydrogen line ratios observed in some TDEs. On the other hand, the resulting compositional changes could help explain the presence of nitrogen-rich features, which are currently only detected after peak. When combined with the shape of the light curve, the time evolution of the composition of the fallback material provides a clear method to help constrain the nature of the disrupted star. This will enable a better characterization of the event by helping break the degeneracy between the mass of the star and the mass of the black hole when fitting tidal disruption light curves.
description: 14 pages, 14 figures. Submitted to ApJ
A Redundant Disk Array Architecture for Efficient Small Writes (CMU-CS-94-170)
Creators: name: Stodolsky, Daniel
name: Holland, Mark
name: Courtright, William V.
name: Gibson, Garth A.
Publisher: name: Carnegie Mellon University
Year: 1994
Subjects: subject: 80499 Data Format not elsewhere classified
subject: FOS: Computer and information sciences

description: Parity encoded redundant disk arrays provide highly reliable, cost effective secondary storage with high performance for reads and large writes. Their performance on small writes, however, is much worse than mirrored disks - the traditional, highly reliable, but expensive organization for second ary storage. Unfortunately, small writes are a substantial portion of the I/O workload of many impor tant, demanding applications such as on-line transaction processing. This paper presents parity logging, a novel solution to the small write problem for redundant disk arrays. Parity logging applies journalling techniques to substantially reduce the cost of small writes. We provide detailed models of parity logging and competing schemes - mirroring, floating storage, and RAID level 5 - and verify these models by simulation. Parity logging provides performance competitive with mirroring, but with capacity overhead close to the minimum offered by RAID level 5. Finally, parity logging can exploit data caching more effectively than all three alternative approaches.
title: LABORATORY DETECTION OF A NEW INTERSTELLAR FREE-RADICAL CH2CN(B-2(1))
Creators: name: SAITO, S
name: YAMAMOTO, S
name: Irvine, William M.
name: ZIURYS, LM
name: SUZUKI, H
name: OHISHI, M
name: KAIFU, N
Publisher: name: University of Massachusetts Amherst
Year: 1988
Subjects: subject: FREE RADICALS
subject: INTERSTELLAR MATTER
subject: MICROWAVE SPECTRA
subject: MOLECULAR SPECTROSCOPY
subject: FINE STRUCTURE
subject: HYPERFINE STRUCTURE
subject: LINE SPECTRA
subject: Astrophysics and Astronomy

description: The published version is located at http://adsabs.harvard.edu/doi/10.1086/185324
description: An asymmetric-top free radical CH2CN, which as a 2B1 ground state, was detected for the first time by laboratory microwave spectroscopy. The radical was produced in a free-space absorption cell by a DC glow discharge in pure CH3CN gas. About 60 fine-structure components were observed for the N = 11 - 10 to 14 - 13 a-type rotational transitions in the frequency region of 220 - 260 GHz, and many hyperfine resolved components for the N = 4 - 3 and 5 - 4 transitions in the 80 and 100 GHz regions, respectively. The authors assign U100602 and U80484 from Sgr B2, and U40240 and U20120 from TMC-1 to the N = 5 - 4, 4 - 3, 2 - 1, and 1 - 0 transitions with K-1 = 0 of the CH2CN radical.
The photon blockade effect in optomechanical systems
Creators: name: Rabl, Peter
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We analyze the photon statistics of a weakly driven optomechanical system and discuss the effect of photon blockade under single photon strong coupling conditions. We present an intuitive interpretation of this effect in terms of displaced oscillator states and derive analytic expressions for the cavity excitation spectrum and the two photon correlation function $g^{(2)}(0)$. Our results predict the appearance of non-classical photon correlations in the combined strong coupling and sideband resolved regime, and provide a first detailed understanding of photon-photon interactions in strong coupling optomechanics.
A Redundant Disk Array Architecture for Efficient Small Writes (CMU-CS-93-200)
Creators: name: Stodolsky, Daniel
name: Holland, Mark
name: Courtright, William V.
name: Gibson, Garth A.
Publisher: name: Carnegie Mellon University
Year: 1993
Subjects: subject: 80499 Data Format not elsewhere classified
subject: FOS: Computer and information sciences

description: Parity encoded redundant disk arrays provide highly reliable, cost effective secondary storage with high performance for reads and large writes. Their performance on small writes, however, is much worse than mirrored disks - the traditional, highly reliable, but expensive organization for secondary storage. Unfortunately, small writes are a substantial portion of the I/O workload of many important, demanding applications such as on-line transaction processing. This paper presents parity logging, a novel solution to the small write problem for redundant disk arrays. Parity logging applies journalling techniques to substantially reduce the cost of small writes. We provide a detailed analysis of parity logging and competing schemes - mirroring, floating storage, and RAID level 5 - and verify these models by simulation. Parity logging provides performance competitive with mirroring, the best of the alternative single failure tolerating disk array organizations. However, its overhead is close to the minimum offered by RAID level 5. Finally, parity logging can exploit data caching much more effectively than all three alternative approaches.
An ultra-short period rocky super-Earth with a secondary eclipse and a Neptune-like companion around K2-141
Creators: name: Malavolta, Luca
name: Mayo, Andrew W.
name: Louden, Tom
name: Rajpaul, Vinesh M.
name: Bonomo, Aldo S.
name: Buchhave, Lars A.
name: Kreidberg, Laura
name: Kristiansen, Martti H.
name: Lopez-Morales, Mercedes
name: Mortier, Annelies
name: Vanderburg, Andrew
name: Coffinet, Adrien
name: Ehrenreich, David
name: Lovis, Christophe
name: Bouchy, Francois
name: Charbonneau, David
name: Ciardi, David R.
name: Cameron, Andrew Collier
name: Cosentino, Rosario
name: Crossfield, Ian J. M.
name: Damasso, Mario
name: Dressing, Courtney D.
name: Dumusque, Xavier
name: Everett, Mark E.
name: Figueira, Pedro
name: Fiorenzano, Aldo F. M.
name: Gonzales, Erica J.
name: Haywood, Raphaëlle D.
name: Harutyunyan, Avet
name: Hirsch, Lea
name: Howell, Steve B.
name: Johnson, John Asher
name: Latham, David W.
name: Lopez, Eric
name: Mayor, Michel
name: Micela, Giusi
name: Molinari, Emilio
name: Nascimbeni, Valerio
name: Pepe, Francesco
name: Phillips, David F.
name: Piotto, Giampaolo
name: Rice, Ken
name: Sasselov, Dimitar
name: Ségransan, Damien
name: Sozzetti, Alessandro
name: Udry, Stéphane
name: Watson, Chris
Publisher: name: arXiv
Year: 2018
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Ultra-short period (USP) planets are a class of low mass planets with periods shorter than one day. Their origin is still unknown, with photo-evaporation of mini-Neptunes and in-situ formation being the most credited hypotheses. Formation scenarios differ radically in the predicted composition of USP planets, it is therefore extremely important to increase the still limited sample of USP planets with precise and accurate mass and density measurements. We report here the characterization of an USP planet with a period of 0.28 days around K2-141 (EPIC 246393474), and the validation of an outer planet with a period of 7.7 days in a grazing transit configuration. We derived the radii of the planets from the K2 light curve and used high-precision radial velocities gathered with the HARPS-N spectrograph for mass measurements. For K2-141b we thus inferred a radius of $1.51\pm0.05~R_\oplus$ and a mass of $5.08\pm0.41~M_\oplus$, consistent with a rocky composition and lack of a thick atmosphere. K2-141c is likely a Neptune-like planet, although due to the grazing transits and the non-detection in the RV dataset, we were not able to put a strong constraint on its density. We also report the detection of secondary eclipses and phase curve variations for K2-141b. The phase variation can be modeled either by a planet with a geometric albedo of $0.30 \pm 0.06$ in the Kepler bandpass, or by thermal emission from the surface of the planet at $\sim$3000K. Only follow-up observations at longer wavelengths will allow us to distinguish between these two scenarios.
description: 16 pages, 10 figures., accepted for publication in AJ
Bacterial multidrug resistance description in Coimbra Burns Unit, 2016-2020
Creators: name: Rodrigues, Leonor Carvalho
name: Afreixo, Vera
name: Tavares, Ana Helena
name: Caetano, Marisa
name: Chaves, Catarina
name: Cabral, Luís
Publisher: name: Journal of Statistics on Health Decision
Year: 2021

description: Journal of Statistics on Health Decision, vol. 3 n.º 1 (2021): Special Issue - Statistics on Health Decision Making: Public Health
Additional file 1 of Langerhans cell histiocytosis in adolescent patients: a single-centre retrospective study
Creators: name: Cai, Hua-cong
name: Chen, Jia
name: Liu, Ting
name: Cai, Hao
name: Duan, Ming-hui
name: Li, Jian
name: Zhou, Dao-bin
name: Cao, Xin-xin
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Virology
subject: Computational Biology

description: Additional file 1. Table S1. Comparison between patients with or without genetic profile.
A Read/Write Protocol Family for Versatile Storage Infrastructures (CMU-PDL-05-108)
Creators: name: Wylie, Jay J.
Publisher: name: Carnegie Mellon University
Year: 2005
Subjects: subject: 80499 Data Format not elsewhere classified
subject: FOS: Computer and information sciences

description: The ideal storage infrastructure scales to meet new demands. Traditionally, the emphasis has been on the capacity and performance scalability of a storage infrastructure. Current trends towards massive storage infrastructures comprised entirely of commodity components demand broader forms of scalability. The next generation of storage infrastructures must scale to tolerate more and varied types of faults. Fault-scalability, the ability to tolerate large numbers of faults efficiently, is needed so that the simultaneous failures of multiple commodity components can be tolerated. Versatility, the ability to store objects with radically different resiliency (fault-tolerance) and performance requirements simultaneously and efficiently, is needed so that a deployed storage infrastructure can meet new demands as they are identified. This dissertation develops a set of related protocols for reading and writing data objects called the Read/Write Protocol Family (R/W-PF) that enables a versatile storage infrastructure to be built. The R/W-PF provides versatility: objects with different per-object resiliency requirements can be stored in the same storage infrastructure. The costs (response time, number of servers required, etc.) of storing an object are commensurate with its resiliency requirements. The R/W-PF incorporates versatile storage mechanisms, such as erasure codes, witnesses, and quorums, in its design, allowing the efficiency of read and write access to stored objects to be tuned to meet capacity and performance requirements. Measurements of PASIS, a prototype storage system based on the R/WPF, demonstrate its versatility. These measurements show that the R/W-PF also provides fault-scalability. Measurements show the differing performance costs associated with various resiliency requirements and the workloaddependent merits of the storage mechanisms incorporated in the R/W-PF. The significant trade-offs associated with resiliency and storage mechanism choices underscore the importance of versatility in storage infrastructures
Constraints on dark matter particles from theory, galaxy observations and N-body simulations
Creators: name: Boyanovsky, D.
name: de Vega, H. J.
name: Sanchez, N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Mass bounds on dark matter (DM) candidates are obtained for particles decoupling in or out of equilibrium with {\bf arbitrary} isotropic and homogeneous distribution functions. A coarse grained Liouville invariant primordial phase space density $ \mathcal D $ is introduced. Combining its value with recent photometric and kinematic data on dwarf spheroidal satellite galaxies in the Milky Way (dShps), the DM density today and $N$-body simulations, yields upper and lower bounds on the mass, primordial phase space densities and velocity dispersion of the DM candidates. The mass of the DM particles is bound in the few keV range. If chemical freeze out occurs before thermal decoupling, light bosonic particles can Bose-condense. Such Bose-Einstein {\it condensate} is studied as a dark matter candidate. Depending on the relation between the critical($T_c$)and decoupling($T_d$)temperatures, a BEC light relic could act as CDM but the decoupling scale must be {\it higher} than the electroweak scale. The condensate tightens the upper bound on the particle's mass. Non-equilibrium scenarios that describe particle production and partial thermalization, sterile neutrinos produced out of equilibrium and other DM models are analyzed in detail obtaining bounds on their mass, primordial phase space density and velocity dispersion. Light thermal relics with $ m \sim \mathrm{few} \mathrm{keV}$ and sterile neutrinos lead to a primordial phase space density compatible with {\bf cored} dShps and disfavor cusped satellites. Light Bose condensed DM candidates yield phase space densities consistent with {\bf cores} and if $ T_c\gg T_d $ also with cusps. Phase space density bounds from N-body simulations suggest a potential tension for WIMPS with $ m \sim 100 \mathrm{GeV},T_d \sim 10 \mathrm{MeV} $.
description: 27 pages 8 figures. Version to appear in Phys. Rev. D
Revealing HI gas in emission and absorption on pc to kpc scales in a galaxy at z ~ 0.017
Creators: name: Gupta, N.
name: Srianand, R.
name: Farnes, J. S.
name: Pidopryhora, Y.
name: Vivek, M.
name: Paragi, Z.
name: Noterdaeme, P.
name: Oosterloo, T.
name: Petitjean, P.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a detailed study of the quasar-galaxy pair: J1243+4043 - UGC07904. The sight line of the background quasar ( $z_q$= 1.5266) passes through a region of the galaxy ($z_g$=0.0169) at an impact parameter of 6.9 kpc with high metallicity (0.5 Z$_\odot$) and negligible dust extinction. We detect HI 21-cm absorption from the foreground galaxy at arcsecond and milliarcsecond scales. For typical cold neutral medium (CNM) temperatures in the Milky Way, this 21-cm absorber can be classified as a damped Ly$α$ absorber (DLA). We infer the harmonic mean spin temperature of the gas to be $\sim$400 K and for a simple two-phase medium we estimate the CNM-fraction to be $f_{\rm CNM}$ = 0.27. This is remarkably consistent with the CNM fraction observed in the Galaxy and less than that of high-redshift DLAs. The quasar exhibits a core-jet morphology on milliarcsecond scales, corresponding to an overall extent of $\sim$9 pc at $z_g$. We show that the size of CNM absorbing clouds associated with the foreground galaxy is $>$5 pc and they may be part of cold gas structures that extend beyond $\sim$35 pc. Interestingly, the rotation measure of quasar J1243+4043 is higher than any other source in samples of quasars with high-$z$ DLAs. However, we do not find any detectable differences in RMs and polarization fraction of sight lines with or without high-$z$ ($z\ge2$) DLAs or low-$z$ ($z\le0.3$) 21-cm absorbers. Finally, the foreground galaxy UGC07904 is also part of a galaxy group. We serendipitously detect HI 21-cm emission from four members of the group, and a $\sim$80 kpc long HI bridge connecting two of the other members. The latter, together with the properties of the group members, suggests that the group is a highly interactive environment.
description: 14 pages, 11 figures, 3 tables. Submitted to MNRAS (referee's comments from Minor revision incorporated)
title: 03_0621
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Predictors of residual pulmonary vascular obstruction in pulmonary embolism patients- cohort study
Creators: name: Rocha, Vanusa
name: Afreixo, Vera
name: Gregório, Tiago
name: Leal, Nuno
Publisher: name: Journal of Statistics on Health Decision
Year: 2021

description: Journal of Statistics on Health Decision, vol. 3 n.º 1 (2021): Special Issue - Statistics on Health Decision Making: Public Health
Tevatron Asymmetry of Tops in a W',Z' Model
Creators: name: Barger, Vernon
name: Keung, Wai-Yee
name: Yu, Chiu-Tien
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Recent results from the CDF Collaboration indicate the the top-pair forward-backward asymmetry is largest in regions of high rapidity difference $|Δy|$ and invariant mass $M_{t\bar t}.$ We show that experimental observations can be explained by our previously proposed Asymmetric Left-Right Model (ALRM). The gauge symmetry $U'(1)\times SU'(2)\times SU(2)$ is broken by a triplet Higgs in the primed sector. The $W'$ boson has a $(t,d)$ right-handed coupling and the $Z'$ boson has diagonal fermion couplings. We determine the model parameters to be $M_{W'} = 700$ GeV, $M_{Z'}=1$ TeV, and charged current coupling $g'_2=3$. The $W'$ and $Z'$ total decay widths are of $\mathcal{O}(100$ GeV). The signals from $Z'\to t\bar t$ and $W'\to tb$ at the LHC will test the model.
description: 14 pages, 7 figures; typos corrected, references added. Version to appear in PLB
A Prototype User Interface for Coarse-Grained Desktop Access Control (CMU-CS-03-200)
Creators: name: A. Chris Long
name: Moskowitz, Courtney
name: Ganger, Greg
Publisher: name: Carnegie Mellon University
Year: 2003
Subjects: subject: 80499 Data Format not elsewhere classified
subject: FOS: Computer and information sciences

description: Viruses, trojan horses, and other malware are a growing problem for computer users, but current tools and research do not adequately aid users in fighting these threats. One approach to increasing security is to partition all applications and data based on general task types, or “roles,” such as “Personal,” “Work,” and “Communications.” This can limit the effects of malware to a single role rather than allowing it to affect the entire computer. We are developing a prototype to investigate the usability of this security model. Our initial investigation uses cognitive walkthrough and think-aloud user studies of paper prototypes to look at this model in the context of realistic tasks, and to compare different user interface mechanisms for managing data and applications in a role-based system. For most participants, our interface was simple to understand and use. In addition to a security model that is intrinsically useful, we believe development of this system will inform issues in the design and implementation of usable security interfaces, such as refinement of design guidelines.
Prediction of new states from $D^{(*)}B^{(*)}\bar{B}^{(*)}$ three-body interactions
Creators: name: Dias, J. M.
name: Roca, L.
name: Sakai, S.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study three-body systems composed of $D^{(*)}$, $B^{(*)}$ and $\bar{B}^{(*)}$ in order to look for possible bound states or resonances. In order to solve the three-body problem, we use the fixed center approach for the Faddeev equations considering that the $B^*\bar{B}^*(B\bar{B})$ are clusterized systems, generated dynamically, which interact with a third particle $D(D^*)$ whose mass is much smaller than the two-body bound states forming the cluster. In the $DB^*\bar{B}^*$, $D^*B^*\bar{B}^*$, $DB\bar{B}$ and $D^*B\bar{B}$ systems with $I=1/2$, we found clear bound state peaks with binding energies typically a few tens MeV and more uncertain broad resonant states about ten MeV above the threshold with widths of a few tens MeV.
description: 7 pages, 2 figures
A Protocol Family for Versatile Survivable Storage Infrastructures (CMU-PDL-03-103)
Creators: name: Goodson, Garth R.
name: Wylie, Jay J.
name: Ganger, Gregory R.
name: Reiter, Michael K.
Publisher: name: Carnegie Mellon University
Year: 2003
Subjects: subject: 80499 Data Format not elsewhere classified
subject: FOS: Computer and information sciences

description: Survivable storage systems mask faults. A protocol family shifts the decision of which types of faults from implementation time to data-item creation time. If desired, each data-item can be protected from different types and numbers of faults. This paper describes and evaluates a family of storage access protocols that exploit data versioning to efficiently provide consistency for erasure-coded data. This protocol family supports a wide range of fault models with no changes to the client-server interface or server implementations. Its members also shift overheads to clients. Readers only pay these overheads when they actually observe concurrency or failures. Measurements of a prototype block-store show the efficiency and scalability of protocol family members.
Using M Dwarf Spectra to Map Extinction in the Local Galaxy
Creators: name: Jones, David O.
name: West, Andrew A.
name: Foster, Jonathan B.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We use spectra of more than 56,000 M dwarfs from the Sloan Digital Sky Survey (SDSS) to create a high-latitude extinction map of the local Galaxy. Our technique compares spectra from the stars in the SDSS Data Release 7 M dwarf sample in low-extinction lines of sight, as determined by Schlegel, Finkbeiner, & Davis, to other SDSS M dwarf spectra in order to derive improved distance estimates and accurate line-of-sight extinctions. Unlike most previous studies, which have used a two-color method to determine extinction, we fit extinction curves to fluxes across the entire spectral range from 5700 to 9200 Å for every star in our sample. Our result is an extinction map that extends from a few tens of pc to approximately 2 kpc away from the sun. We also use a similar technique to create a map of R_V values within approximately 1 kpc of the sun, and find they are consistent with the widely accepted diffuse interstellar medium value of 3.1. Using our extinction data, we derive a dust scale height for the local galaxy of 119\pm15 parsecs and find evidence for a local dust cavity.
description: 11 pages, 14 figures, accepted for publication in AJ
Non-perturbative spectrum of non-local gravity
Creators: name: Calcagni, Gianluca
name: Modesto, Leonardo
name: Nardelli, Giuseppe
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the non-perturbative degrees of freedom of a class of weakly non-local gravitational theories that have been proposed as an ultraviolet completion of general relativity. At the perturbative level, it is known that the degrees of freedom of non-local gravity are the same of the Einstein--Hilbert theory around any maximally symmetric spacetime. We prove that, at the non-perturbative level, the degrees of freedom are actually eight in four dimensions, contrary to what one might guess on the basis of the "infinite number of derivatives" present in the action. It is shown that six of these degrees of freedom do not propagate on Minkowski spacetime, but they might play a role at large scales on curved backgrounds. We also propose a criterion to select the form factor almost uniquely.
description: 8 pages. v2: presentation shortened and simplified, conclusions unchanged, references added; v3: added a discussion on the spin structure of the extra d.o.f. and a proof that they do not propagate; v4: details of calculations expanded
Neuromuscular Electrostimulation vs Traditional Therapy in the Stroke Patient with Oropharyngeal Dysphagia: Effects on Quality of Life - Randomized Study
Creators: name: Gouveia, Carla Sofia Lima
name: Couto, Pedro Sá
name: Matos, Maria Assunção
Publisher: name: Journal of Statistics on Health Decision
Year: 2021

description: Oropharyngeal dysphagia (OD) is common after stroke. Its presence submits the patient to clinical instability, which can cause complications such as aspiration pneumonia, dehydration, malnutrition and death. The objective was to compare effectiveness of traditional therapy (TT) with associated NMES versus traditional therapy in the rehabilitation of patients with OD after stroke and the effects on their quality of life (QOL). We have observed that in the EG, there is a trend towards a faster recovery of OD, reaching the level 7 of the FOIS scale about a week before the CG. Regarding QOL, it was possible to observe that the patients of both groups, when recovering from DO improved their QOL and that the EG tends to present better results.
description: Journal of Statistics on Health Decision, vol. 3 n.º 1 (2021): Special Issue - Statistics on Health Decision Making: Public Health
Rare Bc->Ds l^+ l^- decay beyond the standard model
Creators: name: Yilmaz, U. O.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The rare Bc->Ds l^+ l^- decay is investigated by using the most general model independent effective Hamiltonian. The general expressions of longitudinal, normal and transversal polarization asymmetries for l^- and l^+ and the combined asymmetries of them are found. The dependencies of the branching ratios and polarizations on the new Wilson coefficients are presented. The analysis shows that the branching ratios and the lepton polarization asymmetries are very sensitive to the scalar and tensor type interactions. These results will be very useful in searching new physics beyond the standard model.
description: 17 Pages, 12 Figures
Open topological strings and integrable hierarchies: Remodeling the A-model
Creators: name: Brini, Andrea
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Algebraic Geometry (math.AG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We set up, purely in A-model terms, a novel formalism for the global solution of the open and closed topological A-model on toric Calabi-Yau threefolds. The starting point is to build on recent progress in the mathematical theory of open Gromov-Witten invariants of orbifolds; we interpret the localization formulae as relating D-brane amplitudes to closed string amplitudes perturbed with twisted masses through an analogue of the "loop insertion operator" of matrix models. We first generalize this form of open/closed string duality to general toric backgrounds in all chambers of the stringy Kaehler moduli space; secondly, we display a neat connection of the (gauged) closed string side to tau functions of 1+1 Hamiltonian integrable hierarchies, and exploit it to provide an effective computation of open string amplitudes. In doing so, we also provide a systematic treatment of the change of flat open moduli induced by a phase transition in the closed moduli space. We test our proposal in detail by providing an extensive number of checks. We also use our formalism to give a localization-based derivation of the Hori-Vafa spectral curves as coming from a resummation of A-model disc instantons.
description: 49 pages, 10 figures; v2: typos fixed, updated references, version to appear on Comm. Math. Phys
A Large-scale Study of Failures in High-performance-computing Systems (CMU-PDL-05-112)
Creators: name: Schroeder, Bianca
name: Gibson, Garth
Publisher: name: Carnegie Mellon University
Year: 2005
Subjects: subject: 80499 Data Format not elsewhere classified
subject: FOS: Computer and information sciences

description: Designing highly dependable systems requires a good understanding of failure characteristics. Unfortunately little raw data on failures in large IT installations is publicly available, due to the confidential nature of this data. This paper analyzes soon-to-be public failure data covering systems at a large high-performance-computing site. The data has been collected over the past 9 years at Los Alamos National Laboratory and includes 23000 failures recorded on more than 20 different systems, mostly large clusters of SMP and NUMA nodes. We study the statistics of the data, including the root cause of failures, the mean time between failures, and the mean time to repair. We find for example that average failure rates differ wildly across systems, ranging from 20-1000 failures per year, and that time between failures is modeled well by a Weibull distribution with decreasing hazard rate. From one system to another, mean repair time varies from less than an hour to more than a day, and repair times are well modeled by a lognormal distribution.
Are demographic, clinical and psychosocial factors and depression symptoms associated with dementia risk among patients with HIV in Portugal?
Creators: name: Iutis, Adela
name: Abreu, Wilson
name: Freitas, Adelaide
name: Silva, Cristiana J.
Publisher: name: Journal of Statistics on Health Decision
Year: 2021

description: Journal of Statistics on Health Decision, vol. 3 n.º 1 (2021): Special Issue - Statistics on Health Decision Making: Public Health
Top-philic $Z'$ Forces at the LHC
Creators: name: Fox, Patrick J.
name: Low, Ian
name: Zhang, Yue
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Despite extensive searches for an additional neutral massive gauge boson at the LHC, a $Z^\prime$ at the weak scale could still be present if its couplings to the first two generations of quarks are suppressed, in which case the production in hadron colliders relies on tree-level processes in association with heavy flavors or one-loop processes in association with a jet. We consider the low-energy effective theory of a top-philic $Z'$ and present possible UV completions. We clarify theoretical subtleties in evaluating the production of a top-philic $Z'$ at the LHC and examine carefully the treatment of an anomalous $Z'$ current in the low-energy effective theory. Recipes for properly computing the production rate in the $Z'+j$ channel are given. We discuss constraints from colliders and low-energy probes of new physics. As an application, we apply these considerations to models that use a weak-scale $Z'$ to explain possible violations of lepton universality in $B$ meson decays, and show that the future running of a high luminosity LHC can potentially cover much of the remaining parameter space favored by this particular interpretation of the $B$ physics anomaly.
description: 30 pages, 12 figures
Cross-sectional study to investigate the presence of sarcopenic dysphagia in a Portuguese geriatric population
Creators: name: Portinha, Susana
name: Sa-Couto, Pedro
name: Matos, Maria Assunção
Publisher: name: Journal of Statistics on Health Decision
Year: 2021

description: Oropharyngeal Dysphagia (OD) and sarcopenia have been recognized as geriatric syndromes and have shown a higher prevalence in institutionalized elderly, being associated with increased socioeconomic burdens. The objectives were to investigate the presence of sarcopenia and risk of OD in a geriatric population and to analyse the relationship between the factors associated with Sarcopenic Dysphagia (SOD). We have observed that female gender, low educational level and score ≥4 on the SARC-F screening test are associated with higher odds of being at risk for OD, sarcopenia, and even probable SOD. Based on the results, we suggested including a Speech and Language Therapist in the multidisciplinary geriatric teams in order to improve the prevention of OD, sarcopenia and SOD, avoiding its consequences.
description: Journal of Statistics on Health Decision, vol. 3 n.º 1 (2021): Special Issue - Statistics on Health Decision Making: Public Health
Distributed Computing and Swarm Intelligence - Developing a Vision for Transatlantic Collaboration
Creators: name: Vermesan, Ovidiu
Publisher: name: Zenodo
Year: 2025

description: This vision paper outlines  the challenges and opportunities within the four key research areas and synthesizes the outcomes of discussions that have emerged through this transatlantic dialogue. In doing so, it seeks to provide actionable recommendations to guide future research initiatives, inspire technological progress, and strengthen the EU-US partnership in distributed computing and swarm intelligence. By addressing these shared priorities, this paper envisions a future where innovation and cooperation across continents catalyze the emergence of transformative technological advancements in distributed computingand swarm intelligence.
A Human Organization Analogy for Self-* Systems (CMU-CS-03-129)
Creators: name: Strunk, John D.
name: Ganger, Gregory R.
Publisher: name: Carnegie Mellon University
Year: 2003
Subjects: subject: 80499 Data Format not elsewhere classified
subject: FOS: Computer and information sciences

description: The structure and operation of human organizations, such as corporations, offer useful insights to designers of self-* systems (a.k.a. self-managing or autonomic). Examples include worker/supervisor hierarchies, avoidance of micro-management, and complaint-based tuning. This paper explores the analogy, and describes the design of a self-* storage system that borrows from it.
Holonomic Gradient Method for Two Way Contingency Tables
Creators: name: Tachibana, Yoshihito
name: Goto, Yoshiaki
name: Koyama, Tamio
name: Takayama, Nobuki
Publisher: name: arXiv
Year: 2018
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 33C90, 65Q10, 62B05, 62H17

description: The holonomic gradient method gives an algorithm to efficiently and accurately evaluate normalizing constants and their derivatives. We apply the holonomic gradient method in the case of the conditional Poisson or multinomial distribution on two way contingency tables. We utilize the modular method in computer algebra for an efficient and exact evaluation, and we discuss on complexities of these algorithms and their implementation. We also discuss on a theoretical aspect of the distribution from the viewpoint of the conditional maximum likelihood estimation.
description: 30 papges, 4 figures
The Active Nucleus of IC4970: A Nearby Example of Merger-Induced Cold-Gas Accretion
Creators: name: Machacek, M. E.
name: Kraft, R. P.
name: Ashby, M. L. N.
name: Evans, D. A.
name: Jones, C.
name: Forman, W. R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present results from Chandra X-ray and Spitzer mid-infrared observations of the interacting galaxy pair NGC6872/IC4970 in the Pavo galaxy group and show that the smaller companion galaxy IC4970 hosts a highly obscured active galactic nucleus (AGN). The 0.5-10 keV X-ray luminosity of the nucleus is variable, increasing by a factor 2.9 to 1.7 x 10^{42} erg/s (bright state) on ~100 ks timescales. The X-ray spectrum of the is heavily absorbed (N_H = 3 x 10^{23} cm^{-2}) for power law models with Gamma = 1.5-2.0 and shows a clear 6.4 keV Fe Kalpha line with equivalent width of 144-195 eV. Limits on the diffuse emission in IC4970 from Chandra X-ray data suggest that the available power from Bondi accretion of hot interstellar gas may be an order of magnitude too small to power the AGN. Spitzer images show that 8 micron nonstellar emission is concentrated in the central 1 kpc of IC4970, consistent with high obscuration in this region. The mid-infrared colors of the nucleus are consistent with those expected for a highly obscured AGN. Taken together these data suggest that the nucleus of IC4970 is a Seyfert 2, triggered and fueled by cold material supplied to the central supermassive black hole as a result of the off-axis collision of IC4970 with the cold-gas rich spiral galaxy NGC6872.
description: 10 pages, 9 figures, submitted to ApJ, MIR flux conversion error corrected in Table 4, MIR colors and paper text unchanged
Progression of Ganglion Cell-Inner Plexiform layer thickness in the initial stages of diabetic retinopathy in type 2 diabetic patients: a 5-year longitudinal study
Creators: name: Tavares, Diana
name: Madeira, Maria H.
name: Marques, Inês P.
name: Santos, Torcato
name: Santos, Ana Rita
name: Lobo, Conceição
name: Cunha-Vaz, José
Publisher: name: Journal of Statistics on Health Decision
Year: 2021

description: Journal of Statistics on Health Decision, vol. 3 n.º 1 (2021): Special Issue - Statistics on Health Decision Making: Public Health
Heat Kernel Coefficients for Two-Dimensional Schrodinger Operators
Creators: name: Berest, Yuri
name: Cramer, Tim
name: Eshmatov, Farkhod
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 32W30, 35K15, 58J72

description: In this note, we compute the Hadamard coefficients of (algebraically) integrable Schrodinger operators in two dimensions. These operators first appeared in [BL] and [B] in connection with Huygens' principle, and our result completes, in a sense, the investigation initiated in those papers.
description: Final version; 8 pages
Direct visualization of the nematic superconductivity in Cu$_x$Bi$_2$Se$_3$
Creators: name: Tao, Ran
name: Yan, Ya-Jun
name: Liu, Xi
name: Wang, Zhi-Wei
name: Ando, Yoichi
name: Wang, Qiang-Hua
name: Zhang, Tong
name: Feng, Dong-Lai
Publisher: name: arXiv
Year: 2018
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Cu$_x$Bi$_2$Se$_3$ hosts both topological surface states and bulk superconductivity. It has been identified recently as a topological superconductor (TSC) with an extraordinary nematic, i. e. C2-symmetric, superconducting state and odd-parity pairing. Here, using scanning tunneling microscopy (STM), we directly examine the response of the superconductivity of CuxBi2Se3 to magnetic field. Under out-of-plane fields, we discover elongated magnetic vortices hosting zero-bias conductance peaks consistent with the Majorana bound states expected in a TSC. Under in-plane fields, the average superconducting gap exhibits two-fold symmetry with field orientation; the long C2 symmetry axes are pinned to the dihedral mirror planes under B//=0.5 T but rotate slightly under B//=1.0 T. Moreover, a nodeless Δ4x gap structure is semi-quantitatively determined for the first time. Our data paint a microscopic picture of the nematic superconductivity in CuxBi2Se3 and pose strong constraints on theory.
description: 14 pages, 4 figures; reference added, text and figures modified