cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Whimper of a Bang: Documenting the Final Days of the Nearby Type Ia Supernova 2011fe
Creators: name: Shappee, B. J.
name: Stanek, K. Z.
name: Kochanek, C. S.
name: Garnavich, P. M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Using the Hubble Space Telescope (HST) and the Large Binocular Telescope, we followed the evolution of the Type Ia supernova (SN Ia) 2011fe for an unprecedented 1840 days past $B$-band maximum light and over a factor of $7$ million in flux. At 1840 days, the 4000 - 17000 Å quasi-bolometric luminosity is just ($420 \pm 20$) $L_{\odot}$. By measuring the late-time quasi-bolometric light curve, we present the first confident detection of $^{57}$Co decay in a SN Ia light curve and estimate a mass ratio of $\log (^{57}\mathrm{Co}/^{56}\mathrm{Co}) = -1.59^{+ 0.06 }_{- 0.07 }$. We do not have a clean detection of $^{55}\mathrm{Fe}$, but find a limit of $^{55}\mathrm{Fe}/^{57}\mathrm{Co} < 0.22$ with 99% confidence. These abundance ratios provide unique constraints on the progenitor system because the central density of the exploding white dwarf(s) dictates these nucleosynthetic yields. The observed ratios strongly prefer the lower central densities of double-degenerate models ($^{55}\mathrm{Fe}/^{57}\mathrm{Co} = 0.27$) over the higher central densities of near-Chandrasekhar-mass single-degenerate models ($^{55}\mathrm{Fe}/^{57}\mathrm{Co} = 0.68$). However, additional theoretical studies predicting isotopic yields from a broader range of progenitor systems are motivated by these unique observations. We will continue to observe SN 2011fe for another $\sim 600$ days with HST and possibly beyond.
description: 11 pages, 6 figures, 1 Table. Accepted to ApJ. Photometric data presented in this submission are included as ancillary files
Custodial symmetry, Georgi-Machacek model, and other scalar extensions
Creators: name: Kundu, Anirban
name: Mondal, Poulami
name: Pal, Palash B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In an SU(2) gauge theory, if the gauge bosons turn out to be degenerate after spontaneous symmetry breaking, obviously these mass terms are invariant under a global SU(2) symmetry that is unbroken. The pure gauge terms are also invariant under this symmetry. This symmetry is called the {\em custodial symmetry} (CS). In $\rm SU(2)\times U(1)$ gauge theories, CS implies a mass relation between the $W$ and the $Z$ bosons. The Standard Model (SM), as well as various extensions of it in the scalar sector, possess such a symmetry. In this paper, we critically examine the notion of CS and show that there may be three different classes of CS, depending on the gauge couplings and self-couplings of the scalars. Among old models that preserve CS, we discuss the Two-Higgs Doublet Model and the one doublet plus two triplet model by Georgi and Machacek. We show that for two-triplet extensions, the Georgi-Machacek model is not the most general possibility with CS. Rather, we find, as the most general extension, a new model with more parameters and hence a richer phenomenology. Some of the consequences of this new model have also been discussed.
description: 29 pages, 5 figures. Major changes in Section 2 regarding the classification of custodial symmetry. Version accepted in Physical Review D
Measurement of the Lambda+c Lifetime
Creators: name: Bonvicini, G.
name: CLEO Collaboration
name: Cinabro, D.
name: Csorna, S. E.
name: Danko, I.
name: Godang, R.
name: Kinoshita, K.
name: Lai, I. C.
name: Mahmood, A. H.
name: McGee, S.
name: McLean, K. W.
name: Márka, S.
name: Perera, L. P.
name: Schrenk, S.
name: Xu, Z.
name: Zhou, G. J.
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
Cerebrospinal fluid modulation for enhanced drug delivery in the brain
Creators: name: Wood, Caroline Michelle
Publisher: name: No Publisher Supplied
Year: 2023

description: Developing safe and efficacious treatments for central nervous system disorders is difficult as the brain’s physiology limits drug penetration and distribution while promoting efflux. In addition, many complex transport mechanisms within the central nervous system are not fully understood. This dissertation investigates a novel approach to improve the pharmacokinetic profiles of drugs in the central nervous system by modulating cerebrospinal fluid flow and altering drug clearance rates. This was accomplished by 1) developing fabrication methods and characterizing polymeric drug delivery systems capable of co-delivering small molecule modulators of cerebrospinal fluid production and 2) creating a pharmacokinetic model to elucidate cerebrospinal fluid flow rates and sustained drug release rates necessary to improve treatment pharmacokinetics. Within this work, we also explored parameters for developing primary cell based in vitro systems of choroid plexus tissue, an epithelial monolayer responsible for cerebrospinal fluid secretion. These results demonstrate the feasibility of fabricating localized drug delivery systems to deliver cerebrospinal fluid modulating-drugs and provide quantitative predictions of the improvements these systems have on co-delivered drug pharmacokinetics in the brain. The drug delivery, computational, and cellular tools produced within this work also provide the scientific community improved methods to develop novel treatment strategies for neurological conditions directly impacted by choroid plexus function and cerebrospinal fluid flow.
Correlaciones para la evaluación de la preconsolidación
Creators: name: Herrera Panzza, Rafael Enrique
name: Sierra Redondo, Juan Agustin
Publisher: name: Universidad de Cartagena
Year: 1996
Subjects: Mecánica de suelos
Compactación de suelos
Consolidación

description: Tesis (Ingeniero Civil).--Universidad de Cartagena. Facultad de Ciencias E Ingeniería. Programa de Ingeniería, 1996.
description: El presente estudio tiene por objeto validar y/o adaptar la correlación entre la cohesión, la presión de preconsolidación y el indice de plasticidad a muestras extraídas en diferentes sitios de la ciudad de cartagena, basados en la investigación hecha por A. W. Skempton en 1948.
The Translation of Creative Lexis in Selected Children’s Literature in English into Malay: A Corpus-based Study
Creators: name: Atikah Zabir
Publisher: name: IATIS and the Centre for Translation and Textual Studies (CTTS) at Dublin City University
Year: 2022
Subjects: children’s literaturecorpus
creative lexis
laws of translation
English-Malay translation

description: New Voices in Translation Studies, 26, 1, -
Noether's theorems and the energy-momentum tensor in quantum gauge theories
Creators: name: Freese, Adam
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Noether's first and second theorems both imply conserved currents that can be identified as an energy-momentum tensor (EMT). The first theorem identifies the EMT as the conserved current associated with global spacetime translations, while the second theorem identifies it as a conserved current associated with local spacetime translations. This work obtains an EMT for quantum electrodynamics and quantum chromodynamics through the second theorem, which is automatically symmetric in its indices and invariant under the expected symmetries (e.g., BRST invariance) without the need for introducing an ad hoc improvement procedure.
description: 11 pages, 1 figure
Categorical Complexity
Creators: name: Basu, Saugata
name: Isik, M. Umut
Publisher: name: arXiv
Year: 2016
Subjects: subject: Category Theory (math.CT)
subject: Computational Complexity (cs.CC)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 18A15, 68Q15

description: We introduce a notion of complexity of diagrams (and in particular of objects and morphisms) in an arbitrary category, as well as a notion of complexity of functors between categories equipped with complexity functions. We discuss several examples of this new definition in categories of wide common interest, such as finite sets, Boolean functions, topological spaces, vector spaces, semi-linear and semi-algebraic sets, graded algebras, affine and projective varieties and schemes, and modules over polynomial rings. We show that on one hand categorical complexity recovers in several settings classical notions of non-uniform computational complexity (such as circuit complexity), while on the other hand it has features which make it mathematically more natural. We also postulate that studying functor complexity is the categorical analog of classical questions in complexity theory about separating different complexity classes.
description: 47 pages
Interstitial delivery of macromolecules can be enhanced with recombinant human hyaluronidase
Creators: name: IAN KENNETH STYLES
Publisher: name: Monash University
Year: 2019
Subjects: subject: 111504 Pharmaceutical Sciences
subject: FOS: Clinical medicine
subject: Pharmacology

description: Ian’s PhD research focused on the use of a novel enzyme that is used to aid in the delivery antibodies and nanoparticles into the skin. His work investigated several mechanisms involved in the absorption of these therapeutics into both the blood and lymphatic systems, with a specific focus on how much directly entered the lymph when administered with the enzyme. The findings from Ian’s research aid in the further development of strategies for targeting antibodies and nanoparticles to the lymphatic system to better treat diseases that reside there.
Solving hadron structures using the basis light-front quantization approach on quantum computers
Creators: name: Qian, Wenyang
name: Basili, Robert
name: Pal, Soham
name: Luecke, Glenn
name: Vary, James P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Quantum computing has demonstrated the potential to revolutionize our understanding of nuclear, atomic, and molecular structure by obtaining forefront solutions in non-relativistic quantum many-body theory. In this work, we show that quantum computing can be used to solve for the structure of hadrons, governed by strongly-interacting relativistic quantum field theory. Following our previous work on light unflavored mesons as a relativistic bound-state problem within the nonperturbative Hamiltonian formalism, we present the numerical calculations on simulated quantum devices using the basis light-front quantization (BLFQ) approach. We implement and compare the variational quantum eigensolver (VQE) and the subspace-search variational quantum eigensolver (SSVQE) to find the low-lying mass spectrum of the light meson system and its corresponding light-front wave functions as quantum states from ideal simulators, noisy simulators, and IBM quantum computers. Based on obtained quantum states, we evaluate the meson decay constants and parton distribution functions directly on the quantum circuits. Our calculations on the quantum computers and simulators are in reasonable agreement with accurate numerical solutions solved on classical computers when noises are moderately small, and our overall results are comparable with the available experimental data.
description: 20 pages, 8 figures
Cosmological model from the holographic equipartition law with a modified Rényi entropy
Creators: name: Komatsu, Nobuyoshi
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Cosmological equations were recently derived by Padmanabhan from the expansion of cosmic space due to the difference between the degrees of freedom on the surface and in the bulk in a region of space. In this study, a modified Rényi entropy is applied to Padmanabhan's `holographic equipartition law', by regarding the Bekenstein--Hawking entropy as a nonextensive Tsallis entropy and using a logarithmic formula of the original Rényi entropy. Consequently, the acceleration equation including an extra driving term (such as a time-varying cosmological term) can be derived in a homogeneous, isotropic, and spatially flat universe. When a specific condition is mathematically satisfied, the extra driving term is found to be constant-like as if it is a cosmological constant. Interestingly, the order of the constant-like term is naturally consistent with the order of the cosmological constant measured by observations, because the specific condition constrains the value of the constant-like term.
description: Final version accepted for publication in EPJC. The titile is revised and references are added. [12 pages, 4 figures]
Propuesta de un modelo para la implementación y estructuración de las empresas solidarias de salud E.S.S.
Creators: name: Florez Velasquez, Ariel
name: Venecia Ledesma, Alvaro Antonio
Publisher: name: Universidad de Cartagena
Year: 1996
Subjects: Logística empresarial
Servicio de salud a la comunidad
Desarrollo organizacional

description: Tesis (Administrador de Empresas) .--Universidad de Cartagena. Facultad de Ciencias Económicas. Programa de Administración de Empresas, 1996
description: El presente estudio tiene por objeto presentar un marco conceptual e interpretativo de las normas que rigen la empresas solidarias de salud.
Nursing home team-care deprescribing study: A novel approach to old age polypharmacy
Creators: name: CHONG HAN KUA
Publisher: name: Monash University
Year: 2019
Subjects: subject: 111503 Clinical Pharmacy and Pharmacy Practice
subject: FOS: Clinical medicine

description: Deprescribing is a process to reduce the harm of polypharmacy in older adults. Polypharmacy has been associated with an increased risk of death, thus it is necessary to investigate and address this issue, and improve the process of deprescribing. However, its implementation is often challenging and prospective outcome data lacking in nursing homes. This thesis aims to investigate the effectiveness of a deprescribing intervention, as well as to understand the human factors surrounding the deprescribing process. It highlights the complex relationship between health professionals and patients with the deprescribing process, as well as offer a strategy to improve deprescribing outcomes.
Perturbation Theory for Quantum Information
Creators: name: Grace, Michael R
name: Guha, Saikat
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Information Theory (cs.IT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We report lowest-order series expansions for primary matrix functions of quantum states based on a perturbation theory for functions of linear operators. Our theory enables efficient computation of functions of perturbed quantum states that assume only knowledge of the eigenspectrum of the zeroth order state and the density matrix elements of a zero-trace, Hermitian perturbation operator, not requiring analysis of the full state or the perturbation term. We develop theories for two classes of quantum state perturbations, perturbations that preserve the vector support of the original state and perturbations that extend the support beyond the support of the original state. We highlight relevant features of the two situations, in particular the fact that functions and measures of perturbed quantum states with preserved support can be elegantly and efficiently represented using Fréchet derivatives. We apply our perturbation theories to find simple expressions for four of the most important quantities in quantum information theory that are commonly computed from density matrices: the Von Neumann entropy, the quantum relative entropy, the quantum Chernoff bound, and the quantum fidelity.
description: 21 pages, updated to clarify that the perturbation theory results are only proven for states on finite-dimensional Hilbert spaces, or state spaces that can be truncated to finite dimensions; it is likely possible to prove that the same results hold for states spanning an infinite-dimensional Hilbert space
Analysis Of Medical Equipment Supply Chain Management Of Public Hospitals Under The Addis Ababa Regional Health Bureau
Creators: name: Getie, Addisu
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Medical equipment are essential for a functioning health system. Medical equipment in particular are crucial in the prevention, diagnosis, and treatment of illness and disease, as well as patient rehabilitation. The objective of this study is to analyse the medical equipment supply chain management of public hospitals under Addis Ababa Regional Health Bureau. Both quantitative and qualitative approaches are used in an explanatory and descriptive research design. A total of 339 samples were taken from 2231 population. Across sectional data was collected using Simple random sampling and purposive sampling methods for quantitative and qualitative data collection respectively. Structured questionnaires and open ended interview questions are used as a tool for data collection. The data were analysed using both descriptive and inferential statistical tools. Moreover, the result was described using mean, frequency and standard deviation, and the researcher was also applied parametric statistical test (correlations, and regression analysis (Simple, multiple)) to interpret and analyze the data, using Statistical Package for Social Science version 21.The findings showed that the efficiency of medical equipment supply chain management in public hospitals is found to be strongly affected by the procurement, inventory, transportation and warehouse management practices. Majority of respondents disagree for having good procurement, inventory, transportation and warehouse management in public hospitals under Addis Ababa Regional Health Bureau. From the overall findings we can conclude that medical equipment supply chain management practices of public hospitals under Addis Ababa Regional Health Bureau is inefficient which will contribute for not giving quality health service. This is mainly due to poor practices in the procurement, inventory, transportation and warehouse management. From the findings of the study 44.5 percent of the variance in efficiency of medical equipment supply chain was explained by the variance of explanatory variables, while the rest 55.5 percent was contributed by other factors that were not included in the model. Hence it is recommended that Federal Ministry of Health should work for improving of medical equipment supply chain management practices of facilities such as to prepare updated medical equipment list nationally and at each level of the facility, to develop health commodities procurement policy. Addis Ababa regional health bureau together with hospital management and staffs should give attention and work cooperatively to improve the practices of medical equipment supply chain management of hospitals.
A Coupled Design of Exploiting Record Similarity for Practical Vertical Federated Learning
Creators: name: Wu, Zhaomin
name: Li, Qinbin
name: He, Bingsheng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Federated learning is a learning paradigm to enable collaborative learning across different parties without revealing raw data. Notably, vertical federated learning (VFL), where parties share the same set of samples but only hold partial features, has a wide range of real-world applications. However, most existing studies in VFL disregard the "record linkage" process. They design algorithms either assuming the data from different parties can be exactly linked or simply linking each record with its most similar neighboring record. These approaches may fail to capture the key features from other less similar records. Moreover, such improper linkage cannot be corrected by training since existing approaches provide no feedback on linkage during training. In this paper, we design a novel coupled training paradigm, FedSim, that integrates one-to-many linkage into the training process. Besides enabling VFL in many real-world applications with fuzzy identifiers, FedSim also achieves better performance in traditional VFL tasks. Moreover, we theoretically analyze the additional privacy risk incurred by sharing similarities. Our experiments on eight datasets with various similarity metrics show that FedSim outperforms other state-of-the-art baselines. The codes of FedSim are available at https://github.com/Xtra-Computing/FedSim.
Ionic Liquids as Potential Alternative Drug Forms to Improve Orally Administered Lipid Based Formulations
Creators: name: ANTHONY LAI
Publisher: name: Monash University
Year: 2019
Subjects: subject: 110104 Medical Biochemistry: Lipids
subject: FOS: Clinical medicine
subject: Organic Chemistry
subject: FOS: Chemical sciences

description: Poorly water soluble drugs suffer from poor drug absorption, and this thesis examined the conversion of such drugs to ionic liquid drug forms to improve oral drug absorption when used int tandem with lipid based formulations
Modelo conceptual para la transmisión de contenidos interactivos, con base en el estándar DVB-T2 aplicado en Colombia
Creators: name: Acosta Torres, Juan Alberto
name: Ortega Arrieta, Antonio Carlos
Publisher: name: Universidad de Cartagena
Year: 2014
Subjects: Simulación (Informática)
Innovaciones tecnológicas

description: Tesis (Ingeniero de Sistemas) -- Universidad de Cartagena. Facultad de Ciencias E Ingenierías Programa de Ingeniería de Sistemas, 2014
description: El presente proyecto propone como objetivo un modelo conceptual para estudio en la transmisión de contenidos interactivos en la TDT en Colombia, apoyado en el estándar DVB-T2; para analizar la manera como se da la interactividad en la TDT, haciendo énfasis en su transporte por el canal de retorno, los tiempos de respuesta y el ancho de banda que consume cada uno. Esto con el fin de explicar de manera conceptual la transmisión de contenidos interactivos y enriquecer la documentación actual referente a la interactividad en Colombia, contribuyendo con la solución de un problema de escasa documentación que se tiene sobre la transmisión de estos contenidos.
Spiral order from orientationally correlated random bonds in classical XY models
Creators: name: Scaramucci, Andrea
name: Shinaoka, Hiroshi
name: Mostovoy, Maxim V.
name: Lin, Rui
name: Mudry, Christopher
name: Müller, Markus
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We discuss the stability of ferromagnetic long-range order in three-dimensional classical XY ferromagnets upon substitution of a small subset of equally oriented bonds by impurity bonds, on which the ferromagnetic exchange J_perp > 0 is replaced by a strong antiferromagnetic coupling J_imp < 0. In the presence of a single impurity bond, once the absolute value of the frustrating coupling J_imp < 0 exceeds a threshold J_c > 0, the ground state becomes two-fold degenerate, corresponding to either clockwise or anticlockwise canting of the spins in the vicinity of the impurity bond. In the presence of a small concentration of impurity bonds, the effective low-energy Hamiltonian is that of Ising variables encoding the sense of rotation of the local canting around the impurities. Those degrees of freedom interact through a dipolar interaction mediated by spin waves. A ferromagnetic Ising ground state indicates the instability of the XY ferromagnet towards a spiral state with a wave vector proportional to the concentration of impurity bonds. To analyze under which circumstances such a ground state arises, we study first impurities forming superlattices. For a subclass of those, we can rigorously establish the existence of spiral order. For another class of superlattices, the Ising variables order ferromagnetically in planes perpendicular to the orientation of impurity bonds, but antiferromagnetically parallel to it, which results in a fan-like XY ground state. Second, we consider the case when the impurity bonds are randomly distributed on the three-dimensional host lattice according to a Poisson process. We show the phenomenon of spiral order by disorder with an ordering wave vector proportional to the impurity concentration. The analytical predictions are confirmed by Monte Carlo simulations and are relevant for magnetic materials such as YBaCuFeO_5.
description: 26 pages, 10 figures; Quantitative comparison with experiments added. Substantially improved manuscript
Post main sequence evolution of icy minor planets: Implications for water retention and white dwarf pollution
Creators: name: Malamud, Uri
name: Perets, Hagai B.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Most observations of polluted white dwarf atmospheres are consistent with accretion of water depleted planetary material. Among tens of known cases, merely two cases involve accretion of objects that contain a considerable mass fraction of water. The purpose of this study is to investigate the relative scarcity of these detections. Based on a new and highly detailed model, we evaluate the retention of water inside icy minor planets during the high luminosity stellar evolution that follows the main sequence. Our model fully considers the thermal, physical, and chemical evolution of icy bodies, following their internal differentiation as well as water depletion, from the moment of their birth and through all stellar evolution phases preceding the formation of the white dwarf. We also account for different initial compositions and formation times. Our results show that previous studies have either underestimated or overestimated water retention. We also reaffirm that water can survive in a variety of circumstances and in great quantities, and therefore other possibilities are discussed in order to explain the infrequency of water detections. We find that the most likely explanation is that water does not survive the dissociation of tidally disrupted minor planets, and instead a direct impact onto the white dwarf is required. We show that this possibility is statistically plausible, and predict that if this hypothesis is correct, future observations of extremely water rich atmospheres will involve only helium dominated DB white dwarfs.
Fast Electromagnetic Validations of Large-Scale Digital Coding Metasurfaces Accelerated by Recurrence Rebuild and Retrieval Method
Creators: name: Zhao, Yu
name: Xiang, Shang
name: Li, Long
Publisher: name: arXiv
Year: 2021
Subjects: subject: Signal Processing (eess.SP)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: The recurrence rebuild and retrieval method (R3M) is proposed in this paper to accelerate the electromagnetic (EM) validations of large-scale digital coding metasurfaces (DCMs). R3M aims to accelerate the EM validations of DCMs with varied codebooks, which involves the analysis of a group of similar but not identical structures. The method transforms general DCMs to rigorously periodic arrays by replacing each coding unit with the macro unit, which comprises all possible coding states. The system matrix corresponding to the rigorously periodic array is globally shared for DCMs with arbitrary codebooks via implicit retrieval. The discrepancy of the interactions for edge and corner units are precluded by the basis extension of periodic boundaries. Moreover, the hierarchical pattern exploitation (HPE) algorithm is leveraged to efficiently assemble the system matrix for further acceleration. Due to the fully utilization of the rigid periodicity, the computational complexity of R3M-HPE is theoretically lower than that of $\mathcal{H}$-matrix within the same paradigm. Numerical results for two types of DCMs indicate that R3M-HPE is accurate in comparison with commercial software. Besides, R3M-HPE is also compatible with the preconditioning for efficient iterative solutions. The efficiency of R3M-HPE for DCMs outperforms the conventional fast algorithms in both the storage and CPU time cost.
description: under review
Atomically Resolved Images from Near Node Photoelectron Holography Experiments on Al(111)
Creators: name: Baumberger, F.
name: Bruno, F.
name: Cvetko, D.
name: Gotter, R.
name: Greber, T.
name: Morgante, A.
name: Osterwalder, J.
name: Sambi, M.
name: Verdini, A.
name: Wider, J.
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
Testing spatial curvature and anisotropic expansion on top of the $Λ$CDM model
Creators: name: Akarsu, Ozgur
name: Di Valentino, Eleonora
name: Kumar, Suresh
name: Ozyigit, Maya
name: Sharma, Shivani
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We explore the possible advantages of extending the $Λ$CDM model by more realistic backgrounds compared to its spatially flat RW spacetime assumption, while preserving the underpinning physics; in particular, by simultaneously allowing non-zero spatial curvature and anisotropic expansion on top of it, viz., the An-$oΛ$CDM model. This is to test whether the latest data support spatial flatness and/or isotropic expansion, and, if not, to explore the roles of spatial curvature and expansion anisotropy (due to its stiff fluid-like behavior) in addressing some of the cosmological tensions. We first present the theoretical background and explicit mathematical construction of An-$oΛ$CDM; combining the simplest anisotropic generalizations of the RW spacetime, viz., the Bianchi type I, V, and IX spacetimes. Then we constrain this model and its particular cases, viz., An-$Λ$CDM, $oΛ$CDM, and $Λ$CDM, by using the data sets from different probes, viz., Planck CMB(+Lens), BAO, SnIa Pantheon, and CC data, and discuss the results. Ultimately, we conclude that, within the setup under consideration, (i) the data confirm the spatial flatness and isotropic expansion, though a very small amount of present-day expansion anisotropy cannot be excluded, e.g., $Ω_{\sigma0}\lesssim10^{-18}$ (95\% C.L.) for An-$Λ$CDM from CMB+Lens, (ii) the introduction of spatial curvature or anisotropic expansion, or both, on top $Λ$CDM does not offer a possible relaxation to the $H_0$ tension, and (iii) the introduction of anisotropic expansion neither affects the closed space prediction from CMB(+Lens) nor does it improve the drastically reduced value of $H_0$ led by the closed space. We discuss why it is important and indispensable to maintain the geometric generalization work program, especially in models that offer solutions to cosmological tensions. [abridged]
description: 25 pages, 6 figures, 5 tables; matches the version published in Physics of the Dark Universe
On moduli spaces of positive scalar curvature metrics on highly connected manifolds
Creators: name: Wiemeler, Michael
Publisher: name: arXiv
Year: 2016
Subjects: subject: Geometric Topology (math.GT)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: Let $M$ be a simply connected spin manifold of dimension at least six which admits a metric of positive scalar curvature. We show that the observer moduli space of positive scalar curvature metrics on $M$ has non-trivial higher homotopy groups. Moreover, denote by $\mathcal{M}_0^+(M)$ the moduli space of positive scalar cuvature metrics on $M$ associated to the group of orientation-preserving diffeomorphisms of $M$. We show that if $M$ belongs to a certain class of manifolds which includes $(2n-2)$-connected $(4n-2)$-dimensional manifolds, then the fundamental group of $\mathcal{M}_0^+(M)$ is non-trivial.
description: 14 pages; minor changes; to appear in IMRN
Challenges of Project Organization Structure in Telecom Projects: The case of ethio-telecom
Creators: name: Fekade, Emebet
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: This study is conducted to assess the project organization structure practice and challenges in Ethiotelecom and also to suggest possible solutions to ease the challenges by identifying the knowledge gap of the project teams. The researcher has done preliminary interview and observed some challenges in each project organization structure related with managing people. As a result the researcher was interested to make deep investigation on their human resource management & leadership practice on the context of each project organization structure in order to understand their challenges and also to identify their knowledge gap by taking pure & matrix project organization structure. Descriptive research design and mixed research approach was applied for this research. The researcher has used hundred percent of the project managers and coordinators, and also used ten percent of the project staffs using simple random sampling for the assessment. The results of the study reveal that all the three (Matrix, Functional, and Pure) type of project organization structure mentioned in the literature are found in Ethio-telecom. The project team has their own selection criteria to select the appropriate project organization structure and they are happy with their choice in their practice. The study also reveals the challenges associated with each project organization structure like getting the right staff for the project, maintaining the staff throughout the life cycle of the project, not rewarding the staff based on their performance, authority and responsibility gap of the project managers on the project teams. The knowledge gap assessment in each project organization's structure shows that the project teams have poor HRM and leadership practice. As a result, the project teams couldn't able to ease the challenges exist in each project organization structure as expected. Based on the findings, therefore, recommendations for ethio-telecom project teams are provided so as to manage and lead the projects efficiently in each project organization structure.
Alexander Gumby Scrapbook
Publisher: name: Columbia University
Year: 2017

description: Clippings about W.E.B. Du Bois, including "Two Typical Leaders" from The Outlook of May 23, 1903, clippings dated Feb. 1942, and the pamphlet 'What the Negro has done for the United States and Texas' by W. E. B. Du Bois. Dates inferred from dates of clipping, known start date of collection, and Gumby's death date.
Brownian yet non-Gaussian diffusion: from superstatistics to subordination of diffusing diffusivities
Creators: name: Chechkin, A. V.
name: Seno, F.
name: Metzler, R.
name: Sokolov, I. M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: A growing number of biological, soft, and active matter systems are observed to exhibit normal diffusive dynamics with a linear growth of the mean squared displacement, yet with a non-Gaussian distribution of increments. Based on the Chubinsky-Slater idea of a diffusing diffusivity we here establish and analyze a minimal model framework of diffusion processes with fluctuating diffusivity. In particular, we demonstrate the equivalence of the diffusing diffusivity process with a superstatistical approach with a distribution of diffusivities, at times shorter than the diffusivity correlation time. At longer times a crossover to a Gaussian distribution with an effective diffusivity emerges. Specifically, we establish a subordination picture of Brownian but non-Gaussian diffusion processes, that can be used for a wide class of diffusivity fluctuation statistics. Our results are shown to be in excellent agreement with simulations and numerical evaluations.
description: 19 pages, 6 figures, RevTeX. Physical Review X, at press
title: Phosphorylated α-synuclein in skin nerve fibers differentiates Parkinson’s disease from multiple system atrophy
Creators: name: Zange, Leonora
name: Noack, Cornelia
name: Hahn, Kathrin
name: Lipp, Axel
name: Stenzel, Werner
Publisher: name: German Medical Science GMS Publishing House
Year: 2015
Subjects: subject: 610 Medical sciences; Medicine

description: Deposition of phosphorylated α-synuclein in cutaneous nerve fibers has been shown pre- and postmortem in Parkinson’s disease. No premortem studies about presence of phosphorylated α-synuclein in skin sympathetic nerve fibers of multiple system atrophy, another synucleinopathy, have[for full text, please go to the a.m. URL]
description: 60th Annual Meeting of the German Society for Neuropathology and Neuroanatomy (DGNN)
valuación geotécnica y diagnóstico hidrogeológico de los problemas de estabilidad de taludes que afectan a las viviendas de la etapa Bonanza Vista de la Urbanización Ciudadela Bonanza en el Municipio de Turbaco, Bolívar
Creators: name: Alvarez Ramos, Valentina
name: Zabala Hernánez, Lizardo
Publisher: name: Universidad de Cartagena
Year: 2017
Subjects: Hidrogeologia
Aguas subterráneas
Estabilidad de suelos

description: Tesis (Ingeniero de Alimentos).--Universidad de Cartagena. Facultad de Ciencias E Ingenierías. Programa de Ingeniería de Alimentos, 2017
description: El presente estudio tiene por objeto, determinar la incidencia de las condiciones geotécnicas, geológicas e hidrogeológicas en los problemas de estabilidad de taludes presentes en la etapa Bonanza Vista de la Ciudadela Bonanza en el municipio de Turbaco, mediante el análisis de los resultados producto de estudios realizados al terreno con el fin de proponer alternativas de prevención y mitigación.
A systems biology approach indicates novel triazine compounds may impact a nuclear mechanism in Plasmodium falciparum
Creators: name: KATHERINE MAY ELLIS
Publisher: name: Monash University
Year: 2019
Subjects: Pharmacology

description: Malaria is a severe parasitic disease which claims over 400,000 lives annually. Drug resistance to the first line antimalarials is spreading and new medicines are desperately required. The research detailed in this thesis provides new information about the mechanism of action of the novel triazine antimalarials. It demonstrates the potent and rapid action of the compounds across the blood stages of the parasite life-cycle, and indicates a novel, nuclear related mechanism of action. This new mechanistic understanding will underpin the ongoing drug discovery efforts based on this novel class of antimalarial compounds.
Evaluating Lyman-$α$ Constraints for General Dark-Matter Velocity Distributions: Multiple Scales and Cautionary Tales
Creators: name: Dienes, Keith R.
name: Huang, Fei
name: Kost, Jeff
name: Thomas, Brooks
name: Yu, Hai-Bo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Lyman-$α$ absorption spectrum associated with photons traversing the intergalactic medium allows us to probe the linear matter power spectrum down to relatively small distance scales. Finding ways of accurately evaluating Lyman-$α$ constraints across large classes of candidate models of dark-matter physics is thus of paramount importance. While such constraints have been evaluated for dark-matter models with relatively simple dark-matter velocity distributions, more complex models -- particularly those with dark-matter velocity distributions stretching across multiple scales -- are receiving increasing attention. In this paper, we undertake a study of the Lyman-$α$ constraints associated with general dark-matter velocity distributions. Although these constraints are difficult to evaluate in principle, in practice there exist two ways of recasting them into forms which are easier to evaluate and which therefore allow a more rapid determination of whether a given dark-matter model is ruled in or out. We utilize both of these recasts in order to determine the Lyman-$α$ bounds on different classes of dark-matter velocity distributions. We also develop a general method by which the results of these different recasts can be compared. For relatively simple dark-matter velocity distributions, we find that these two classes of recasts tend to align and give similar results. However, the situation is far more complex for distributions involving multiple velocity scales: while these two recasts continue to yield similar results within certain regions of parameter space, they nevertheless yield dramatically different results within precisely those regions of parameter space which are likely to be phenomenologically relevant. This, then, serves as a cautionary tale regarding the use of such recasts for complex dark-matter velocity distributions.
description: 21 pages, LaTeX, 12 figures
Investigating the Utility of Lipid-Based Formulations for Ionic Liquid Drug Delivery
Creators: name: ERIN ING-PIN TAY
Publisher: name: Monash University
Year: 2019
Subjects: Uncategorized

description: This thesis explores the potential for alternate salt forms of drugs to improve drug loading in lipid formulations used in capsules. The composition of the lipid formulation plays a key role in the bioavailability of the alternate salt form of the drug. Additionally, a larger, bulkier counter-ion that is paired with a drug will increase drug loading in lipid formulations. These alternate salt forms of drugs have higher drug loading in lipid formulations than the traditional salt forms and provide a potential means to increase the dose for some medications.
Learning in Restless Bandits under Exogenous Global Markov Process
Creators: name: Gafni, Tomer
name: Yemini, Michal
name: Cohen, Kobi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We consider an extension to the restless multi-armed bandit (RMAB) problem with unknown arm dynamics, where an unknown exogenous global Markov process governs the rewards distribution of each arm. Under each global state, the rewards process of each arm evolves according to an unknown Markovian rule, which is non-identical among different arms. At each time, a player chooses an arm out of $N$ arms to play, and receives a random reward from a finite set of reward states. The arms are restless, that is, their local state evolves regardless of the player's actions. Motivated by recent studies on related RMAB settings, the regret is defined as the reward loss with respect to a player that knows the dynamics of the problem, and plays at each time $t$ the arm that maximizes the expected immediate value. The objective is to develop an arm-selection policy that minimizes the regret. To that end, we develop the Learning under Exogenous Markov Process (LEMP) algorithm. We analyze LEMP theoretically and establish a finite-sample bound on the regret. We show that LEMP achieves a logarithmic regret order with time. We further analyze LEMP numerically and present simulation results that support the theoretical findings and demonstrate that LEMP significantly outperforms alternative algorithms.
description: 13 pages, 6 figures. arXiv admin note: text overlap with arXiv:1906.08120
Estudio de la estructura familiar en la comunidad la Quinta y factores que inciden en la delegación de funciones
Creators: name: De Avila JImenez, Dany María
name: Marrugo Barrios, Ayda Margarita
Publisher: name: Universidad de Cartagena
Year: 1987
Subjects: Familia
Familia - Investigaciones
Trabajo social familiar
Familia - Aspectos sociales

description: Tesis (Trabajadora Social ) -- Universidad de Cartagena. Facultad de Trabajo Social. Programa de Trabajo Social, 1987
description: El siguiente estudio tiene por objeto analizar las condiciones del entorno socio económico y cultural que afectan la funcionalidad de la estructura familiar en la comunidad de la Quinta.
History of cosmic evolution with modified Gauss-Bonnet-dilatonic coupled term
Creators: name: Debnath, Subhra
name: Ruz, Soumendra Nath
name: Mandal, Ranajit
name: Sanyal, Abhik Kumar
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Gauss-Bonnet-dilatonic coupling in four dimension plays an important role to explain late time cosmic evolution. However, this term is an outcome of low energy string effective action and thus ought to be important in the early universe too. Unfortunately, phase-space formulation of such a theory does not exist in the literature due to branching. We therefore consider a modified theory of gravity, which contains a nonminimally coupled scalar-tensor sector in addition to higher order scalar curvature invariant term with Gauss-Bonnet-dilatonic coupling. Such an action unifies early inflation with late-time cosmic acceleration. Quantum version of the theory is also well-behaved.
description: 13 pages, 5 figures, To appear in EPJC (2017)
SMEFTs living on the edge: determining the UV theories from positivity and extremality
Creators: name: Zhang, Cen
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the "inverse problem" in the context of the Standard Model Effective Field Theory (SMEFT): how and to what extend can one reconstruct the UV theory, given the measured values of the operator coefficients in the IR? The main obstacle of this problem is the degeneracies in the space of coefficients: a given SMEFT truncated at a finite dimension can be mapped to infinitely many UV theories. We discuss these degeneracies at the dimension-8 level, and show that positivity bounds play a crucial role in the inverse problem. In particular, the degeneracies either vanish or become significantly limited for SMEFTs that live on or close to the positivity bounds. The UV particles of these SMEFTs, and their properties such as spin, charge, other quantum numbers, and interactions with the SM particles, can often be uniquely determined, assuming dimension-8 coefficients are measured. The allowed region for SMEFTs, which forms a convex cone, can be systematically constructed by enumerating its generators. We show that a geometric notion, extremality, conveniently connects the positivity problem with the inverse problem. We discuss the implications of a SMEFT living on an extremal ray, on a $k$-face, and on the vertex of the positive cone. We also show that the information of the dimension-8 coefficients can be used to set exclusion limits on all individual UV states that interact with the SM, independent of specific model assumptions. Our results indicate that the dimension-8 operators encode much more information about the UV than one would naively expect, which can be used to reverse engineer the UV physics from the SMEFT.
description: 91 pages, 20 figures