cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Masses and strong decays of open charm hexaquark states $Σ_{c}^{(\ast)}Σ_{c}^{(\ast)}$
Creators: name: Ling, Xi-Zhe
name: Liu, Ming-Zhu
name: Geng, Li-Sheng
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Inspired by the recent discovery of the doubly charmed tetraquark state $T_{cc}^{+}$ by the LHCb Collaboration, we perform a systematic study of masses and strong decays of open charm hexaquark states $Σ_{c}^{(\ast)}Σ_{c}^{(\ast)}$. Taking into account heavy quark spin symmetry breaking, we predict several bound states of isospin $I=0$, $I=1$, and $I=2$ in the one boson exchange model. Moreover, we adopt the effective Lagrangian approach to estimate the decay widths of $Σ_{c}^{(\ast)}Σ_{c}^{(\ast)} \to Λ_{c}Λ_{c}$ and their relevant ratios via the triangle diagram mechanism, which range from a few MeV to a few tens of MeV. We strongly recommend future experimental searches for the $Σ_{c}^{(\ast)}Σ_{c}^{(\ast)}$ hexaquark states in the $Λ_cΛ_c$ invariant mass distributions.
Computing quantum phase transitions
Creators: name: Vojta, Thomas
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: This article first gives a concise introduction to quantum phase transitions, emphasizing similarities with and differences to classical thermal transitions. After pointing out the computational challenges posed by quantum phase transitions, a number of successful computational approaches is discussed. The focus is on classical and quantum Monte Carlo methods, with the former being based on the quantum-to classical mapping while the latter directly attack the quantum problem. These methods are illustrated by several examples of quantum phase transitions in clean and disordered systems.
description: 99 pages, 15 figures, submitted to Reviews in Computational Chemistry
Reply to: `Comment on: " 't Hooft vertices, partial quenching, and rooted staggered QCD" '
Creators: name: Bernard, Claude
name: Golterman, Maarten
name: Shamir, Yigal
name: Sharpe, Stephen R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We reply to Creutz's comments on our paper " 't Hooft vertices, partial quenching, and rooted staggered QCD." We show that his criticisms are incorrect and result from a misunderstanding both of our work, and of the related work of Adams.
description: 3 pages
Experimental Measurement of Multi-dimensional Entanglement via Equivalent Symmetric Projection
Creators: name: Sun, F. W.
name: Cai, J. M.
name: Xu, J. S.
name: Chen, G.
name: Liu, B. H.
name: Li, C. F.
name: Zhou, Z. W.
name: Guo, G. C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We construct a linear optics measurement process to determine the entanglement measure, named \emph{I-concurrence}, of a set of $4 \times 4$ dimensional two-photon entangled pure states produced in the optical parametric down conversion process. In our experiment, an \emph{equivalent} symmetric projection for the two-fold copy of single subsystem (presented by L. Aolita and F. Mintert, Phys. Rev. Lett. \textbf{97}, 050501 (2006)) can be realized by observing the one-side two-photon coincidence without any triggering detection on the other subsystem. Here, for the first time, we realize the measurement for entanglement contained in bi-photon pure states by taking advantage of the indistinguishability and the bunching effect of photons. Our method can determine the \emph{I-concurrence} of generic high dimensional bipartite pure states produced in parametric down conversion process.
description: 4 figures
Inhibition of DNA repair by sodium ascorbate in vitro and in vivo
Creators: name: Koropatnick, Donald James
Publisher: name: University of British Columbia
Year: 2010

description: Several short-term assays are in use to assess the carcinogenic hazard of chemicals. While the ability to induce initiating events that may lead to carcinogenesis is measured, compounds and conditions that might modify the ability of chemicals to cause those initiating events are not assessed by such tests. In addition, compounds that affect the ability of cells to react in a normal fashion to the damaging action of carcinogens are not detected by these methods. Shifts in alkaline sucrose gradient profiles of centrifuged DNA (as an indication of DNA fragmentation) and formation of aryl and alkyl DNA adducts (as an indication of DNA modification) have been used as short-term assays for carcinogenic and mutagenic potential. Repair of DNA damage has been measured by restoration of near-control sedimentation profiles of DNA and the loss of aryl and alkyl adducts over time after damage or modification of DNA by carcinogens and mutagens. In this study, the ability of sodium ascorbate to modify the DNA fragmenting and adduct-forming action of the carcinogens N-methyl-N'-nitro-N-nitrosoguanidine (MNNG) and benzo(a)pyrene (BP) was investigated. In addition, the ability of cells In vivo and In vitro to repair DNA in the presence of sodium ascorbate was assessed by the two methods described above. It was found that sodium ascorbate inhibited repair in vivo and in vitro. In addition, sodium ascorbate was found to fragment DNA in vivo and in vitro in the presence of copper, and to inhibit the action of carcinogens _in vivo and in vitro by nucleophilic scavenging of electrophilic carcinogens. Sodium ascorbate was also found to inhibit the binding of BP to DNA jLn vivo and In vitro. On the other hand, other reducing agents had other effects. Propyl gallate (a sulphydryl reducing compound) inhibited binding of BP to DNA in vitro, but enhanced binding of BP to DNA in vivo. The sulphydryl reducing agent glutathione enhanced binding of BP to DNA in vivo and in vitro. Alkaline sucrose gradient analysis of DNA damage and recovery from that damage, and BP adduct formation in DNA and disappearance over time, appear to be suitable methods for assessment of the modifying properties of compounds and conditions on the initiating events that may lead to mutation or carcinogenesis.
Liquid-gas phase transition in nuclear matter from realistic many-body approaches
Creators: name: Rios, A.
name: Polls, A.
name: Ramos, A.
name: Müther, H.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The existence of a liquid-gas phase transition for hot nuclear systems at subsaturation densities is a well established prediction of finite temperature nuclear many-body theory. In this paper, we discuss for the first time the properties of such phase transition for homogeneous nuclear matter within the Self-Consistent Green's Functions approach. We find a substantial decrease of the critical temperature with respect to the Brueckner-Hartree-Fock approximation. Even within the same approximation, the use of two different realistic nucleon-nucleon interactions gives rise to large differences in the properties of the critical point.
description: REVTEX4 - 23 pages, 5 figures, 1 table; corrections added, final version
Computer-free, all-optical reconstruction of holograms using diffractive networks
Creators: name: Rahman, Md Sadman Sakib
name: Ozcan, Aydogan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Image and Video Processing (eess.IV)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Reconstruction of in-line holograms of unknown objects in general suffers from twin-image artifacts due to the appearance of an out-of-focus image overlapping with the desired image to be reconstructed. Computer-based iterative phase retrieval algorithms and learning-based methods have been used for the suppression of such image artifacts in digital holography. Here we report an all-optical hologram reconstruction method that can instantly retrieve the image of an unknown object from its in-line hologram and eliminate twin-image artifacts without using a digital processor or a computer. Multiple transmissive diffractive layers are trained using deep learning so that the diffracted light from an arbitrary input hologram is processed all-optically, through light-matter interaction, to reconstruct the image of an unknown object at the speed of light propagation and without the need for any external power. This passive all-optical processor composed of spatially-engineered transmissive layers forms a diffractive network, which successfully generalizes to reconstruct in-line holograms of unknown, new objects and exhibits improved diffraction efficiency as well as extended depth-of-field at the hologram recording distance. This all-optical hologram processor and the underlying design framework can find numerous applications in coherent imaging and holographic display-related applications owing to its major advantages in terms of image reconstruction speed and computer-free operation.
description: 19 Pages, 5 Figures
An investigation of the feasibility of establishing an electronic library service at BG Technology
Creators: name: Snape, Linda J.
Publisher: name: Loughborough University
Year: 2021
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: An investigation of the feasibility of establishing an electronic library service at BG Technology
Weighing matrices and optical quantum computing
Creators: name: Flammia, Steven T.
name: Severini, Simone
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Combinatorics (math.CO)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Quantum computation in the one-way model requires the preparation of certain resource states known as cluster states. We describe how the construction of continuous-variable cluster states for optical quantum computing relate to the existence of certain families of matrices. The relevant matrices are known as weighing matrices, with a few additional constraints. We prove some results regarding the structure of these matrices, and their associated graphs.
description: 17 pages, 9 figures. v2: Minor typos fixed, improved discussion
PERSPECTIVES OF VETERANS IN HIGHER EDUCATION: EXPLORING THE TERM "STUDENT VETERAN" AND THE IDENTITY SHIFTS BETWEEN MILITRAY AND COLLEGE
Creators: name: Hernandez Baron, Paola Maria
Publisher: name: Digital Repository at the University of Maryland
Year: 2014
Subjects: subject: Higher education
subject: college
subject: development
subject: identity
subject: military
subject: student veteran
subject: transition

description: Given changes in the G.I Bill, warfare, and higher education, post 9/11 veterans are a unique and expanding college student population. The purpose of this narrative inquiry study was to better understand how post 9/11 student veterans perceive and identify with the term "student veteran."  The findings suggest that "student veteran" is more than a label and shares some qualities of a social identity. The participants wanted to be treated as "regular students," but also valued what the term "student veteran" signifies including a unique sociohistorical, cultural, and personal context and history that framed their academic experience. Participants described the term as a way to uphold military culture amidst the more ambiguous college culture. Participants felt the term carries imposed meanings and judgments different from that which participants themselves attribute to it.  Findings suggest both theoretical and applied implications for expanded cultural competency around interacting with heterogeneous student veteran populations.
"An Uncertain Life in Another World": German and Austrian Jewish Refugee Life in Shanghai, 1938-1950
Creators: name: Hyman, Elizabeth Rebecca
Publisher: name: Digital Repository at the University of Maryland
Year: 2014
Subjects: subject: History
subject: Judaic studies
subject: Holocaust studies
subject: Emigration
subject: Holocaust
subject: Jewish
subject: Refugees
subject: Shanghai
subject: Transnational

description: Between 1938 and 1941, 20,000 Eastern and Central European Jews fled to Shanghai. Through a close examination or memoirs and oral histories, I argue that the manner in which the refugees experiences the approximately twelve years (1938-1950) they spent in Shanghai was informed by their nationality, gender, and age. Further, I argue that the twelve years they spent in Shanghai eroded the refugee's behavioral, material, and emotional connections to their old lives in Germany and Austria until all they had left was language and memories.
On Brightness Agnostic Adversarial Examples Against Face Recognition Systems
Creators: name: Singh, Inderjeet
name: Momiyama, Satoru
name: Kakizaki, Kazuya
name: Araki, Toshinori
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: This paper introduces a novel adversarial example generation method against face recognition systems (FRSs). An adversarial example (AX) is an image with deliberately crafted noise to cause incorrect predictions by a target system. The AXs generated from our method remain robust under real-world brightness changes. Our method performs non-linear brightness transformations while leveraging the concept of curriculum learning during the attack generation procedure. We demonstrate that our method outperforms conventional techniques from comprehensive experimental investigations in the digital and physical world. Furthermore, this method enables practical risk assessment of FRSs against brightness agnostic AXs.
description: Accepted at BIOSIG 2021 conference
Cap Products in String Topology
Creators: name: Tamanoi, Hirotaka
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 55P35

description: Chas and Sullivan showed that the homology of the free loop space LM of an oriented closed smooth finite dimensional manifold M admits the structure of a Batalin-Vilkovisky (BV) algebra equipped with an associative product called the loop product and a Lie bracket called the loop bracket. We show that the cap product is compatible with the above two products in the loop homology. Namely, the cap product with cohomology classes coming from M via the circle action acts as derivations on loop products as well as on loop brackets. We show that Poisson identities and Jacobi identities hold for the cap product action, extending the BV structure in the loop homology to the one including the cohomology of M. Finally, we describe the cap product in terms of the BV algebra structure in the loop homology.
description: 19 pages. Revised version 2 with added references, improved exposition, and simplified signs
Complete Gluonic Phase in Two-Flavor Color Superconductivity
Creators: name: Wang, Xiao-Ming
name: Zhou, Bang-Rong
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study a typical complete gluonic phase (LGP) in two-flavor color superconductivity (2SC) by calculating the essential cubic and quartic interfering term between the gluonic condensates $$ and $$ with a gauged NJL model. It is proven that the coefficient of the cubic interfering term and the vacuum contributions of the cubic and quartic interfering term are all equal to zeroes. The coefficients of the quartic interfering term and the $$'s quartic self-interaction term at stationary points of LOFF phase are calculated. Comparisons among the effective potentials of LGP, g2SC and LOFF phase indicate that LGP could be the genuine ground state of 2SC for some reasonable parameters.
description: 4 pages, 3 figures
Enhancing Goos-Hänchen shift based on magnetic dipole quasi-bound states in the continuum in all-dielectric metasurfaces
Creators: name: Zheng, Zhiwei
name: Zhu, Ying
name: Duan, Junyi
name: Qin, Meibao
name: Wu, Feng
name: Xiao, Shuyuan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Metasurface-mediated bound states in the continuum (BIC) provides a versatile platform for light manipulation at subwavelength dimension with diverging radiative quality factor and extreme optical localization. In this work, we employ magnetic dipole quasi-BIC resonance in asymmetric silicon nanobar metasurfaces to realize giant Goos-Hänchen (GH) shift enhancement by more than three orders of wavelength. In sharp contrast to GH shift based on the Brewster dip or transmission-type resonance, the maximum GH shift here is located at the reflection peak with unity reflectance, which can be conveniently detected in the experiment. By adjusting the asymmetric parameter of metasurfaces, the $Q$-factor and GH shift can be modulated accordingly. More interestingly, it is found that GH shift exhibits an inverse quadratic dependence on the asymmetric parameter. Furthermore, we design an ultrasensitive environmental refractive index sensor based on the quasi-BIC enhanced GH shift, with a maximum sensitivity of 1.5$\times$10$^{7}$ $μ$m/RIU. Our work not only reveals the essential role of BIC in engineering the basic optical phenomena, but also suggests the way for pushing the performance limits of optical communication devices, information storage, wavelength division de/multiplexers, and ultrasensitive sensors.
Successful Leptogenesis in SO(10) Unification with a Left-Right Symmetric Seesaw Mechanism
Creators: name: Abada, Asmaa
name: Hosteins, Pierre
name: Josse-Michaux, Francois-Xavier
name: Lavignac, Stephane
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study thermal leptogenesis in a broad class of supersymmetric SO(10) models with a left-right symmetric seesaw mechanism, taking into account flavour effects and the contribution of the next-to-lightest right-handed neutrino supermultiplet. Assuming M_D = M_u and a normal hierarchy of light neutrino masses, we show that four out of the eight right-handed neutrino mass spectra reconstructed from low-energy neutrino data can lead to successful leptogenesis with a reheating temperature in the (10^9 - 10^10) GeV range. In the remaining four solutions, leptogenesis is dominated by N_2 decays, as in the type I seesaw case. We find that some of these spectra can generate the observed baryon asymmetry for reheating temperatures above 10^10 GeV, in contrast to the type I case. Together with flavour effects, an accurate description of charged fermion masses turns out to be a crucial ingredient in the analysis.
description: 32 pages, 23 figures. v2: 2 comments [below Eq. (53) and at the end of the conclusions] and 1 reference added, typos corrected. Version to be published in Nucl. Phys. B
A morphological and cytochemical analysis of bud initiation and development in the filamentous brown alga Sphacelaria Furcigera
Creators: name: Burns, Alan Robert
Publisher: name: University of British Columbia
Year: 2010

description: A study on the process of bud initiation and development in the filamentous brown alga Sphacelaria furcigera (Kutz) was carried out using techniques of light and electron microscopy, as well as cytochemistry. A localized thickening and subsequent protrusion of the outer cell wall of the axial mother cell characterizes the earliest detectable stage of bud initiation. This protrusion forms through the combined deposition of newly synthesized microfibrils together with the partial lysis/loosening of the existing cell wall. Evidence is presented that of the three enzyme activities localized, peroxidase, adenosine triphosphatase and acid phosphatase activity, only peroxidase activity is related to the lysis/loosening of the cell wall during the early development of the bud initial. Continued incorporation of new cell wall material into the outer cell wall maintains its structural integrity. However, there is a change in the layered appearance of the cell wall microfibrils. The cell wall of the bud initial is characterized by two cell wall layers instead of the four found in the pre-existing cell wall of the axial mother cell. This original cell wall is composed of an outer-most fucan layer, overlying an alginate layer, which in turn overlies another fucan layer and finally terminates in an inner-most alginate layer. In contrast the bud initial's cell wall has only a thin outer fucan layer and a thick inner alginate layer. Concomitant with the formation of the cell wall protrusion, there is a loss of cytoplasmic vacuoles, an increase in cytoplasmic mass and density and an increase in the number of organelles. The endomembrane system (endoplasmic reticulum, dictyosomes and the derivative vesicles) also proliferates. Organelle migration into the bud protrusion keeps pace with bud expansion. The movement of the nucleus, however, lags behind and it migrates towards the bud protrusion only after a "vacuole free" cytoplasm becomes established. As the nucleus approaches a medial position between the base of the axial mother cell and the tip of the bud protrusion, cytoplasmic vacuoles re-appear. They are confined, however, to the basal region of the axial mother cell. After karyokinesis, a cross wall is deposited between the two daughter nuclei resulting in the formation of a bud cell and a sister axial cell. The sister axial cell is highly vacuolated and structurally resembles the adjacent quiescent axial cells. The bud cell is dense and non-vacuolated, a feature characteristic of a mefistematic cell.
The NSF MPS FAIR Hackathon - My Views and Reflections
Creators: name: Cruz, Maria
Publisher: name: Zenodo
Year: 2019
Subjects: FAIR, research data, metadata, interoperability

description: Presentation given at the TU Delft Data Champions meeting on 21 May 2019. The presentation reports on the NSF MPS FAIR Hackathon held on Alenxandria, VA, 27-28 February 2019.
Measuring Dark Energy with Gamma-Ray Bursts and Other Cosmological Probes
Creators: name: Wang, F. Y.
name: Dai, Z. G.
name: Zhu, Zong-Hong
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: It has been widely shown that the cosmological parameters and dark energy can be constrained by using data from type-Ia supernovae (SNe Ia), the cosmic microwave background (CMB) anisotropy, the baryon acoustic oscillation (BAO) peak from Sloan Digital Sky Survey (SDSS), the X-ray gas mass fraction in clusters, and the linear growth rate of perturbations at z=0.15 as obtained from the 2dF Galaxy Redshift Survey. Recently, gamma-ray bursts (GRBs) have also been argued to be promising standard candles for cosmography. In this paper, we present constraints on the cosmological parameters and dark energy by combining a recent GRB sample including 69 events with the other cosmological probes. First, we find that for the LambdaCDM cosmology this combination makes the constraints stringent and the best fit is close to the flat universe. Second, we fit the flat Cardassian expansion model and find that this model is consistent with the LambdaCDM cosmology. Third, we present constraints on several two-parameter dark energy models and find that these models are also consistent with the LambdaCDM cosmology. Finally, we reconstruct the dark energy equation-of-state parameter w(z) and the deceleration parameter q(z). We see that the acceleration could have started at a redshift from z_T=0.40_{-0.08}^{+0.14} to z_T=0.65_{-0.05}^{+0.10}. This difference in the transition redshift is due to different dark energy models that we adopt. The most stringent constraint on w(z) lies in the redshift range z\sim 0.3-0.6.
description: 28 pages, 13 figures, accepted for publication in ApJ. One reference added, one minor change in the final paragraph of section 1
Paraphasma maculatum Gray 1835
Creators: name: Brock, Paul D.
name: Marshall, Judith A.
name: Beccaloni, George W.
name: Harman, Allan J. E.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Phasmida
Pseudophasmatidae
Paraphasma
Paraphasma maculatum

description: maculatum Gray, 1835: 26 (Phasma)
Ƌ HT: [BRAZIL:] Amazon, [18]40- 4.2.1310 (Children Coll.) [BMNH (E) #845312]. = Paraphasma maculatum (Gray, 1835) (Pseudophasmatidae: Stratocleinae)
description: Published as part of Brock, Paul D., Marshall, Judith A., Beccaloni, George W. & Harman, Allan J. E., 2016, The types of Phasmida in the Natural History Museum, London, UK, pp. 151-208 in Zootaxa 4179 (2) on page 181, DOI: 10.11646/zootaxa.4179.2.1, http://zenodo.org/record/266692
Scotogenesis in Hybrid Textures of Neutrino Mass Matrix and Neutrinoless Double Beta Decay
Creators: name: Ankush
name: Kashav, Monal
name: Verma, Surender
name: Chauhan, B. C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the connection between dark matter (DM) and neutrinoless double beta ($0νββ$) decay in a scotogenic model with hybrid texture in the neutrino mass matrix. Characteristically, the framework allows to write all the non-zero elements of the mass matrix proportional to effective Majorana mass $\left|M_{ee}\right|$. The overall scale of the neutrino mass is found to be governed by non-zero $\left|M_{ee}\right|$. We have obtained interesting correlations of relic density of DM($Ωh^2$) with DM mass $M_1$ and $\left|M_{ee}\right|$. Using experimental value of DM relic density($Ωh^2$), the DM mass $M_1$, is found to be $\mathcal{O}$(1TeV) which is within reach of collider experiments. Specifically, for all five hybrid textures, the range of upper bound on DM mass $M_1$ is found to be ($2.27$-$5.31$)TeV. Another interesting feature of the model is the existence of lower bound on $|M_{ee}|$ for all allowed hybrid textures except texture $T_5$ which can be probed in current and future $0νββ$ decay experiments. With high sensitivities, these experiments shall establish the theoretical status of the proposed model. For example, the non-observation of $0νββ$ decay down to the sensitivity $\mathcal{O}(0.03)$eV will refute $T_3$ hybrid texture.
description: 15 pages, 2 figures
Assessing Support for Industry Standards in Reference Medical Software Architectures
Creators: name: Han, Shihui
name: Sinha, Roopak
name: Lowe, Andrew
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Industrial standards for developing medical device software provide requirements that conforming devices must meet. A number of reference software architectures have been proposed to develop such software. The ISO/IEC 25010:2011 family of standards provides a comprehensive software product quality model, including characteristics that are highly desirable in medical devices. Furthermore, frameworks like 4+1 Views provide a robust framework to develop the software architecture or high level design for any software, including for medical devices. However, the alignment between industrial standards and reference architectures for medical device software, on one hand, and ISO/IEC 25010:2011 and 4+1 Views, on the other, is not well understood. This paper aims to explore how ISO/IEC 25010:2011 and 4+1 Views are supported by current standards, namely ISO 13485:2016, ISO 14971:2012, IEC 62304:2006 and IEC 62366:2015, and current reference architectures for medical device software. We classified requirements from medical devices standards into qualities from ISO/IEC 25010:2011 and architectural views from 4+1 Views. A systematic literature review (SLR) method was followed to review current references software architectures and a mapping of their support for the identified ISO/IEC 25010:2011 qualities in the previous step was carried out. Our results show that ISO/IEC 25010:2011 qualities like functional suitability, portability, maintainability, usability, security, reliability and compatibility are highly emphasised in medical device standards. Furthermore, we show that current reference architectures only partially support these qualities. This paper can help medical device developers identify focus areas for developing standards-compliant software. A wider study involving under-development medical devices can help improve the accuracy of our findings in the future.
description: Conference paper, 5 pages, 1 figure, 5 tables
Can giant planets form by gravitational fragmentation of discs?
Creators: name: Stamatellos, Dimitris
name: Whitworth, Anthony P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Gravitational fragmentation has been proposed as a mechanism for the formation of giant planets in close orbits around solar-type stars. However, it is debatable whether this mechanism can function in the inner regions (R<40 AU) of real discs. We use a newly developed method for treating the energy equation and the equation of state, which accounts for radiative transfer effects in SPH simulations of circumstellar discs. The different chemical and internal states of hydrogen and the properties of dust at different densities and temperatures (ice coated dust grains at low temperatures, ice melting, dust sublimation) are all taken into account by the new method.We present radiative hydrodynamic simulations of the inner regions of massive circumstellar discs and examine two cases: (i) a disc irradiated by a cool background radiation field (T_bgr=10K)and (ii) a disc heated by radiation from its central star (T_bgr~1/R). In neither case does the disc fragment: in the former because it cannot cool fast enough and in the latter because it is not gravitationally unstable. Our results (a) corroborate previous numerical results using different treatments for the hydrodynamics and the radiative transfer, and (b) confirm our own earlier analytic predictions. We conclude that disc fragmentation is unlikely to be able to produce giant planets around solar-type stars at radii <40 AU.
description: Accepted by A&A, 10 pages, high-resolution available at http://www.astro.cf.ac.uk/pub/Dimitrios.Stamatellos/publications/
Measurement of the dark matter velocity anisotropy in galaxy clusters
Creators: name: Host, Ole
name: Hansen, Steen H.
name: Piffaretti, Rocco
name: Morandi, Andrea
name: Ettori, Stefano
name: Kay, Scott T.
name: Valdarnini, Riccardo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The internal dynamics of a dark matter structure may have the remarkable property that the local temperature in the structure depends on direction. This is parametrized by the velocity anisotropy beta which must be zero for relaxed collisional structures, but has been shown to be non-zero in numerical simulations of dark matter structures. Here we present a method to infer the radial profile of the velocity anisotropy of the dark matter halo in a galaxy cluster from X-ray observables of the intracluster gas. This non-parametric method is based on a universal relation between the dark matter temperature and the gas temperature which is confirmed through numerical simulations. We apply this method to observational data and we find that beta is significantly different from zero at intermediate radii. Thus we find a strong indication that dark matter is effectively collisionless on the dynamical time-scale of clusters, which implies an upper limit on the self-interaction cross-section per unit mass sigma/m < 1 cm2/g. Our results may provide an independent way to determine the stellar mass density in the central regions of a relaxed cluster, as well as a test of whether a cluster is in fact relaxed.
description: 10 pages, 8 figures, submitted to ApJ
Surface effects on the orbital order in the single layered manganite La0.5Sr1.5MnO4
Creators: name: Wakabayashi, Y.
name: Upton, M. H.
name: Grenier, S.
name: Hill, J. P.
name: Nelson, C. S.
name: Kim, J. -W.
name: Ryan, P. J.
name: Goldman, A. I.
name: Zheng, H.
name: Mitchell, J. F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report the first observation of `orbital truncation rods' -- the scattering arising from the termination of bulk orbital order at the surface of a crystal. The x-ray measurements, performed on a cleaved, single-layered perovskite, La0.5Sr1.5MnO4, reveal that while the crystallographic surface is atomically smooth, the orbital `surface' is much rougher, with an r.m.s. deviation from the average `surface' of ~0.7nm. The temperature dependence of this scattering shows evidence of a surface-induced second order transition.
description: 13 pages, 4 figures
Tasmaniosoma Verhoeff 1936
Creators: name: Mesibov, Robert
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Diplopoda
Polydesmida
Dalodesmidae
Tasmaniosoma

description: Tasmaniosoma Verhoeff, 1936 Tasmaniosoma Verhoeff, 1936:11. Attems, 1940:442. Jeekel, 1971:355; 1982:12; 1983:146; 1984:85; 1985:52. Hoffman, 1980:150,185.
description: Published as part of Mesibov, Robert, 2010, The millipede genus Tasmaniosoma Verhoeff, 1936 (Diplopoda, Polydesmida, Dalodesmidae) from Tasmania, Australia, with descriptions of 18 new species, pp. 31-80 in ZooKeys 41 (4) on page 33, DOI: 10.3897/zookeys.41.420, http://zenodo.org/record/576649
description: {"references": ["Verhoeff KW (1936) Die Sphaerotrichopidae der sudlichen Halbkugel und ihre Beziehungen. Zoologischer Anzeiger 114 (1 / 2): 1 - 14.", "Attems C (1940) Das Tierreich. 70. Polydesmoidea. III. Fam. Polydesmidae, Vanhoeffeniidae, Cryptodesmidae, Oniscodesmidae, Sphaerotrichopidae, Peridontodesmidae, Rhachidesmidae, Macellolophidae, Pandirodesmidae. Walter de Gruyter and Co, Berlin, 577 pp.", "Jeekel CAW (1971) Nomenclator generum et familiarum Diplopodorum: a list of the genus and family-group names in the Class Diplopoda from the 10 th edition of Linnaeus, 1758, to the end of 1957. Monografieen van de Nederlandse Entomologische Vereniging 5: i-xii + 1 - 412.", "Jeekel CAW (1982) Millipedes from Australia, 4: A new genus and species of the family Dalodesmidae from Australia (Diplopoda, Polydesmida). Bulletin Zoologisch Museum, Universiteit van Amsterdam 9 (2): 9 - 15.", "Jeekel CAW (1983) Millipedes from Australia, 8: A new genus and species of the family Dalodesmidae from Victoria (Diplopoda, Polydesmida). Bulletin Zoologisch Museum, Universiteit van Amsterdam 9 (16): 145 - 151.", "Jeekel CAW (1984) Millipedes from Australia, 7: Th e identity of the genus Lissodesmus Chamberlin, with the description of four new species from Tasmania (Diplopoda, Polydesmida, Dalodesmidae). Papers and Proceedings of the Royal Society of Tasmania 118: 85 - 101.", "Jeekel CAW (1985) Millipedes from Australia, 9: A new polydesmoid millipede from Queensland (Diplopoda, Polydesmida: Dalodesmidae). Entomologische Berichten (Amsterdam) 45: 50 - 55.", "Hoffman RL (1980) [' 1979 '] Classification of the Diplopoda. Museum d'Histoire Naturelle, Geneve, 237 pp."]}
Chandra studies of the X-ray gas properties of galaxy groups
Creators: name: Sun, M.
name: Voit, G. M.
name: Donahue, M.
name: Jones, C.
name: Forman, W.
name: Vikhlinin, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a systematic analysis of 43 galaxy groups (kT_500=0.7-2.7 keV or M_500=10^13-10^14 h^-1 M_solar, 0.012r_2500 for all 43 groups. For 23 groups, gas properties can be robustly derived to or extrapolated to r_500. We show that in spite of the large variation in T profiles inside 0.15 r_500, the T profiles of these groups are similar at >0.15 r_500 and are consistent with a "universal temperature profile". We present the entropy-T relations at six characteristics radii (30 kpc - r_500), for 43 groups from this work and 14 clusters from Vikhlinin et al. (2008). Despite large scatter in the entropy values at <0.15 r_500, the intrinsic scatter from r_2500 is much smaller and remains the same (~10%) to r_500. We also present scaling relations for the gas fraction. It appears that the average gas fraction between r_2500 and r_500 has no temperature dependence, ~ 0.12 for 1 - 10 keV systems. The group gas fractions within r_2500 are generally low and have large scatter. This work shows that the difference of groups from hotter clusters stems from the difficulty of compressing group gas to inside r_2500. The large scatter of the group gas fraction within r_2500 causes large scatter in the group entropy around the center and may be responsible for the large scatter of the luminosities. Nevertheless, the groups appear more regular and more like clusters beyond r_2500, from the results on gas fraction and entropy. Therefore, mass proxies can be extended into low mass systems. The M-T and M-Y relations derived in this work are indeed well behaved down to at least 2E13 h^-1 M_solar.
description: 39 pages, 24 figures (7 in color), 7 tables, emulateapj5.sty, accepted by ApJ, added 3 groups (43 in total), one figure (Fig. 9) and one section ($9); some group results slightly revised; scaling relations are little affected and conclusions remain the same
ฤทธิ์ทางชีวภาพของสารสกัดหยาบจากใบสังกรณี (Biological Activity of Crude Extract from Barleria strigosa)
Creators: name: ณัฐพร มานะประดิษฐ์
Publisher: name: Genetics Society of Thailand
Year: 2013
Subjects: cytotoxicity, antimicrobial, mitotic index, Barleria strigosa

description: S1 (Special Issue 1), S.1, Thai Journal of Genetics
Diversity-Multiplexing Tradeoffs in MIMO Relay Channels
Creators: name: Gunduz, Deniz
name: Goldsmith, Andrea
name: Poor, H. Vincent
Publisher: name: arXiv
Year: 2008
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: A multi-hop relay channel with multiple antenna terminals in a quasi-static slow fading environment is considered. For both full-duplex and half-duplex relays the fundamental diversity-multiplexing tradeoff (DMT) is analyzed. It is shown that, while decode-and-forward (DF) relaying achieves the optimal DMT in the full-duplex relay scenario, the dynamic decode-and-forward (DDF) protocol is needed to achieve the optimal DMT if the relay is constrained to half-duplex operation. For the latter case, static protocols are considered as well, and the corresponding achievable DMT performance is characterized.
description: To appear at IEEE Global Communications Conf. (Globecom), New Orleans, LA, Nov. 2008
Local Entanglement Is Not Necessary for Perfect Discrimination between Unitary Operations Acting on Two-Qudits by LOCC
Creators: name: Li, Lvzhou
name: Qiu, Daowen
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recently, the problem of discriminating multipartite unitary operations by local operations and classical communication (LOCC) has attracted significant attention. The latest work in the literature on this problem showed that two multipartite unitary operations can always be perfectly distinguished by LOCC when a finite number of runs are allowable. However, in these schemes, local entanglement (an entangled state holden by one party) was required, which seems to imply that local entanglement is necessary for perfect discrimination between unitary operations by LOCC. In this article, we show that a perfect discrimination between two unitary operations acting on a two-qudits can always be achieved without exploiting any entanglement. As a result, we conclude that local entanglement is not necessary for perfect discrimination between unitary operations acting on two-qudits by LOCC.
description: 6 pages, 2 figures, we have added Lemma 5 and its proof, and some sentences have been modified and supplemented, as well
ReuterSuorantaRENT2020.pdf
Creators: name: Reuter, Aapo
name: Suoranta, Mari
Publisher: name: figshare
Year: 2021
Subjects: subject: 150304 Entrepreneurship
subject: FOS: Economics and business
subject: 150314 Small Business Management

description: Conference paper presented at the 34th Annual conference on Research in Entrepreneurship and Small Business (RENT XXXIV), November 18-20, 2020.
Exact Effective action for (1+1)-dimensional fermions in an Abelian background at finite temperature and chemical potential
Creators: name: Maciel, Soraya G.
name: Perez, Silvana
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we study the effects of a nonzero chemical potential in the effective action for massless fermions in (1+1) dimensions in an abelian gauge field background at finite temperature. We calculate the n-point function and show that the structure of the amplitudes corresponds to a generalization of the structure noted earlier in a calculation without a chemical potential (the associated integrals carry the dependence on the chemical potential). Our calculation shows that the chiral anomaly is unaffected by the presence of a chemical potential at finite temperature. However, unlike the earlier calculation (in the absence of a chemical potential) odd point functions do not vanish. We trace this to the fact that in the presence of a chemical potential the generalized charge conjugation symmetry of the theory allows for such amplitudes. In fact, we find that all the even point functions are even functions of the chemical potential while the odd point functions are odd functions of it which is consistent with this generalized charge conjugation symmetry. We show that the origin of the structure of the amplitudes is best seen from a formulation of the theory in terms of left and right handed spinors. The calculations are also much simpler in this formulation and it clarifies many other aspects of the theory.
Filling in the gaps in CNG-Theory
Creators: name: Price, Robert Anthony
Publisher: name: Zenodo
Year: 2025

description: Filling the Gaps in Chronogenesis Theory

 

This document completes the final missing pieces of the Chronogenesis Theory. It includes new solutions for how particle mixing works, where entropy comes from, how consciousness might arise from time curvature, and how quantum gravity can be described using only the Θ time field. It also explains how the theory handles temperature, causality, topological charges, and biochemical timing. Each section fills in a key gap using math based only on the time field, with no extra assumptions. This is the final step that makes Chronogenesis a complete and testable theory of everything.
Characteristics of EGRET Blazars in the VLBA Imaging and Polarimetry Survey (VIPS)
Creators: name: Taylor, G. B.
name: Healey, S. E.
name: Helmboldt, J. F.
name: Tremblay, S.
name: Fassnacht, C. D.
name: Walker, R. C.
name: Sjouwerman, L. O.
name: Pearson, T. J.
name: Readhead, A. C. S.
name: Weintraub, L.
name: Gehrels, N.
name: Romani, R. W.
name: Michelson, P. F.
name: Blandford, R. D.
name: Cotter, G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We examine the radio properties of EGRET-detected blazars observed as part of the VLBA Imaging and Polarimetry Survey (VIPS). VIPS has a flux limit roughly an order of magnitude below the MOJAVE survey and most other samples that have been used to study the properties of EGRET blazars. At lower flux levels, radio flux density does not directly correlate with gamma-ray flux density. We do find that the EGRET-detected blazars tend to have higher brightness temperatures, greater core fractions, and possibly larger than average jet opening angles. A weak correlation is also found with jet length and with polarization. All of the well-established trends can be explained by systematically larger Doppler factors in the gamma-ray loud blazars, consistent with the measurements of higher apparent velocities found in monitoring programs carried out at radio frequencies above 10 GHz.
description: 20 pages, 7 figures, accepted to ApJ
Constraining the D3-brane effective action
Creators: name: Basu, Anirban
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider higher derivative corrections of the type D^{2k} R^2 in the effective action of the D3-brane with trivial normal bundle. Based on the perturbative disc and annulus amplitudes, and constraints of supersymmetry and duality, we argue that these interactions are protected, at least for small values of k. Their coefficient functions receive only a finite number of perturbative contributions, and non-perturbative contributions from D-instantons. We propose expressions for these modular forms for low values of k.
description: 22 pages, LaTeX
Puzzles of excited charm meson masses
Creators: name: Ananthanarayan, B.
name: Banerjee, Sunanda
name: Shivaraj, K.
name: Upadhyay, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We attempt a comprehensive analysis of the low lying charm meson states which present several puzzles, including the poor determination of masses of several non-strange excited mesons. We use the well-determined masses of the ground states and the strange first excited states to `predict' the mass of the non-strange first excited state in the framework of heavy hadron chiral perturbation theory, an approach that is complementary to the well-known analysis of Mehen and Springer. This approach points to values for the masses of these states that are smaller than the experimental determinations. We provide a critical assessment of these mass measurements and point out the need for new experimental information.
description: 9 pages, 1 figure, accepted for publication in Physics Letters B
On the Simes inequality and its generalization
Creators: name: Sarkar, Sanat K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62G30, 62H15 (Primary)

description: The Simes inequality has received considerable attention recently because of its close connection to some important multiple hypothesis testing procedures. We revisit in this article an old result on this inequality to clarify and strengthen it and a recently proposed generalization of it to offer an alternative simpler proof.
description: Published in at http://dx.doi.org/10.1214/193940307000000167 the IMS Collections (http://www.imstat.org/publications/imscollections.htm) by the Institute of Mathematical Statistics (http://www.imstat.org)