cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Coend Optics for Quantum Combs
Creators: name: Hefford, James
name: Comfort, Cole
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Logic in Computer Science (cs.LO)
subject: Category Theory (math.CT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We compare two possible ways of defining a category of 1-combs, the first intensionally as coend optics and the second extensionally as a quotient by the operational behaviour of 1-combs on lower-order maps. We show that there is a full and bijective on objects functor quotienting the intensional definition to the extensional one and give some sufficient conditions for this functor to be an isomorphism of categories. We also show how the constructions for 1-combs can be extended to produce polycategories of n-combs with similar results about when these polycategories are equivalent. The extensional definition is of particular interest in the study of quantum combs and we hope this work might produce further interest in the usage of optics for modelling these structures in quantum theory.
description: In Proceedings ACT 2022, arXiv:2307.15519
AGN evolution from a galaxy evolution viewpoint
Creators: name: Caplar, Neven
name: Lilly, Simon J.
name: Trakhtenbrot, Benny
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We explore the connections between the evolving galaxy and AGN populations. We present a simple phenomenological model that links the evolving galaxy mass function and the evolving quasar luminosity function, which makes specific and testable predictions for the distribution of host galaxy masses for AGN of different luminosities. We show that the $ϕ^{*}$ normalisations of the galaxy mass function and of the AGN luminosity function closely track each other over a wide range of redshifts, implying a constant "duty cycle" of AGN activity. The strong redshift evolution in the AGN $L^*$ can be produced by either an evolution in the distribution of Eddington ratios, or in the $m_{bh}/m_{*}$ mass ratio, or both. To try to break this degeneracy we look at the distribution of AGN in the SDSS ($m_{bh},L$) plane, showing that an evolving ratio $m_{bh}/m_{*} \propto (1+z)^2$ reproduces the observed data and also reproduces the local relations which connect the black hole population with the host galaxies for both quenched and star-forming populations. We stress that observational studies that compare the masses of black holes in active galaxies at high redshift with those in quiescent galaxies locally will always see much weaker evolution. Evolution of this form would produce, or could be produced by, a redshift-independent $m_{bh} - σ$ relation and could explain why the local $m_{bh} - σ$ relation is tighter than $m_{bh} - m_{*}$ even if $σ$ is not directly linked to black hole growth. Irrespective of the evolution of $m_{bh}/m_{*}$, the model reproduces both the appearance of "downsizing" and the so-called "sub-Eddington boundary" without any mass-dependence in the evolution of black hole growth rates.
description: 25 pages, 17 figures, accepted to ApJ
The Electroweak Horizon Problem
Creators: name: Melia, Fulvio
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Physics (physics.gen-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Spontaneously broken symmetries in particle physics may have produced several phase transitions in cosmology, e.g., at the GUT energy scale (~10^15 GeV), resulting in a quasi-de Sitter inflationary expansion, solving the background temperature horizon problem. This transition would have occurred at t~10^-36 to 10^-33 seconds, leading to a separation of the strong and electroweak forces. The discovery of the Higgs boson confirms that the Universe must have undergone another phase transition at the electroweak (EWPT) scale 159.5+/-1.5 GeV, about 10^-11 seconds later, when fermions and the W^+/- and Z^0 bosons gained mass, leading to the separation of the electric and weak forces. But today the vacuum expectation value (vev) of the Higgs field appears to be uniform throughout the visible Universe, a region much larger than causally-connected volumes at the EWPT. The discovery of the Higgs boson thus creates another serious horizon problem for LCDM, for which there is currently no established theoretical resolution. The EWPT was a smooth crossover, however, so previously disconnected electroweak vacuua might have homogenized as they gradually came into causal contact. But using the known Higgs potential and vev, we estimate that this process would have taken longer than the age of the Universe, so it probably could not have mitigated the emergence of different standard model parameters across the sky. The EWPT horizon problem thus argues against the expansion history of the early Universe predicted by standard cosmology.
description: 15 pages. Accepted for publication in Physics of the Dark Universe
High-Dimensional Entanglement for Quantum Communication in the Frequency Domain
Creators: name: Ponce, Meritxell Cabrejo
name: Muniz, André Luiz Marques
name: Huber, Marcus
name: Steinlechner, Fabian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: High-dimensional photonic entanglement is a promising candidate for error-protected quantum information processing with improved capacity. Encoding high-dimensional qudits in the carrier frequency of photons combines ease of generation, universal single-photon gates, and compatibility with fiber transmission for high-capacity quantum communication. Recent landmark experiments have impressively demonstrated quantum interference of a few frequency modes, yet the certification of massive-dimensional frequency entanglement has remained an open challenge. This study shows how to harness the large frequency-entanglement inherent in standard continuous-wave spontaneous parametric down-conversion processes. It further reports a record certification of discretized frequency entanglement, combined with a novel approach for certification that is both highly efficient and nonlocally implementable. This technique requires very few measurements and does not require assumptions on the state. The work opens the possibility for utilizing this encoding in quantum communications and in quantum information science in general.
Strouhal number universality in high-speed cylinder wake flows
Creators: name: Thasu, Premika S.
name: Duvvuri, Subrahmanyam
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Flow oscillations in the near-wake region of a 2D circular cylinder are experimentally investigated at Mach 6 over the Reynolds number range $2.3\times10^5$ to $5\times10^5$. The oscillation frequency is obtained by spectral proper orthogonal decomposition of high-speed schlieren data. The Strouhal number based on the length of the near-wake shear layers is found to exhibit universal behavior. This corroborates experimental findings at Mach 4 from recent literature, and further, the universal behavior is also seen to hold with respect to Mach number. Time-resolved pressure measurements at the flow separation points on the cylinder aft surface show that coherent oscillatory activity occurs with a phase difference of $π$ radians between the two statistically-symmetric halves of the flow. This aspect of the flow dynamics at high speeds is in common with its low-speed counterpart, i.e. the canonical problem of cylinder wake in an incompressible flow.
description: 5 pages, 6 figures
Two-dimensional random interlacements and late points for random walks
Creators: name: Comets, Francis
name: Popov, Serguei
name: Vachkovskaia, Marina
Publisher: name: arXiv
Year: 2015
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: Primary 60K35, Secondary 60G50, 82C41

description: We define the model of two-dimensional random interlacements using simple random walk trajectories conditioned on never hitting the origin, and then obtain some properties of this model. Also, for random walk on a large torus conditioned on not hitting the origin up to some time proportional to the mean cover time, we show that the law of the vacant set around the origin is close to that of random interlacements at the corresponding level. Thus, this new model provides a way to understand the structure of the set of late points of the covering process from a microscopic point of view.
description: Final version, to appear in Commun. Math. Phys. 49 pages, 5 figures
Breast cancer treatment patterns by age and time since last pregnancy in the Carolina Breast Cancer Study Phase III
Creators: name: Reeder-Hayes, K.E.
name: Vohra, S.N.
name: Nichols, H.B.
name: Emerson, M.A.
name: Troester, M.A.
name: Love, M.I.
name: Olshan, A.F.
Publisher: name: Springer
Year: 2022

description: Purpose: To describe breast cancer treatment patterns among premenopausal women by age and time since last pregnancy. Methods: Data were analyzed from 1179 women diagnosed with premenopausal breast cancer in the Carolina Breast Cancer Study. Of these, 160 had a recent pregnancy (within 5 years of cancer diagnosis). Relative frequency differences (RFDs) and 95% confidence intervals (CIs) were used to compare cancer stage, treatment modality received, treatment initiation delay (> 30 days), and prolonged treatment duration (> 2 to > 8 months depending on the treatment received) by age and recency of pregnancy. Results: Recently postpartum women were significantly more likely to have stage III disease [RFD (95% CI) 12.2% (3.6%, 20.8%)] and to receive more aggressive treatment compared to nulliparous women. After adjustment for age, race and standard clinical tumor characteristics, recently postpartum women were significantly less likely to have delayed treatment initiation [RFD (95% CI) − 11.2% (− 21.4%, − 1.0%)] and prolonged treatment duration [RFD (95% CI) − 17.5% (− 28.0%, − 7.1%)] and were more likely to have mastectomy [RFD (95% CI) 14.9% (4.8%, 25.0%)] compared to nulliparous. Similarly, younger women (< 40 years of age) were significantly less likely to experience prolonged treatment duration [RFD (95% CI) − 5.6% (− 11.1%, − 0.0%)] and more likely to undergo mastectomy [RFD (95% CI) 10.6% (5.2%, 16.0%)] compared to the study population as a whole. Conclusion: These results suggest that recently postpartum and younger women often received prompt and aggressive breast cancer treatment. Higher mortality and recurrence among recently pregnant women are unlikely to be related to undertreatment.
Open Dynamical Systems as Coalgebras for Polynomial Functors, with Application to Predictive Processing
Creators: name: Smithe, Toby St. Clere
Publisher: name: arXiv
Year: 2022
Subjects: subject: Category Theory (math.CT)
subject: Logic in Computer Science (cs.LO)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We present categories of open dynamical systems with general time evolution as categories of coalgebras opindexed by polynomial interfaces, and show how this extends the coalgebraic framework to capture common scientific applications such as ordinary differential equations, open Markov processes, and random dynamical systems. We then extend Spivak's operad Org to this setting, and construct associated monoidal categories whose morphisms represent hierarchical open systems; when their interfaces are simple, these categories supply canonical comonoid structures. We exemplify these constructions using the 'Laplace doctrine', which provides dynamical semantics for active inference, and indicate some connections to Bayesian inversion and coalgebraic logic.
description: In Proceedings ACT 2022, arXiv:2307.15519
Ensemble fluctuations of the cosmic ray energy spectrum and the intergalactic magnetic field
Creators: name: Supanitsky, A. D.
name: Medina-Tanco, G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The origin of the most energetic cosmic ray particles is one of the most important open problems in astrophysics. Despite a big experimental effort done in the past years, the sources of these very energetic particles remain unidentified. Therefore, their distribution on the Universe and even their space density are still unknown. It has been shown that different spatial configurations of the sources lead to different energy spectra and composition profiles (in the case of sources injecting heavy nuclei) at Earth. These ensemble fluctuations are more important at the highest energies because only nearby sources, which are necessarily few, can contribute to the flux observed at Earth. This is due to the interaction of the cosmic rays with the low energy photons of the radiation field, present in the intergalactic medium, during propagation. It is believed that the intergalactic medium is permeated by a turbulent magnetic field. Although at present it is still unknown, there are several constraints for its intensity and coherence length obtained from different observational techniques. Charged cosmic rays are affected by the intergalactic magnetic field because of the bending of their trajectories during propagation through the intergalactic medium. In this work, the influence of the intergalactic magnetic field on the ensemble fluctuations is studied. Sources injecting only protons and only iron nuclei are considered. The ensemble fluctuations are studied for different values of the density of sources compatible with the constraints recently obtained from cosmic ray data. Also, the possible detection of the ensemble fluctuations in the context of the future JEM-EUSO mission is discussed.
description: Accepted for publication in Physical Review D
Synthetic Porous Polymers and Naturally Derived Materials for the Tissue Engineering of a Scapholunate Bone-Ligament-Bone Construct
Creators: name: HUYNH, TONY
Publisher: name: Monash University
Year: 2023
Subjects: Tissue engineering
Regenerative medicine (incl. stem cells)
Biomaterials

description: The scapholunate ligament of the wrist is often injured from a fall onto an outstretched hand. Current treatments do not replicate the natural bone-ligament-bone anatomy of the ligament and can lead to graft failure or arthritis. This thesis explores combining natural and synthetic materials to create a bone-ligament-bone medical device for ligament reconstruction. Biodegradable materials such as collagen tissues obtained from bovine tendons, synthetic porous polymer sponges, and fibrin scaffolds from blood sources were examined. These investigated materials support human cell growth during cell culture, form new tissue when implanted in animal models, and can be used in bone-ligament-bone manufacturing.
Socioeconomic status, access to care, risk factor patterns, and stage at diagnosis for head and neck cancer among black and white patients
Creators: name: Mazul, A.L.
name: Hackman, T.G.
name: Lenze, N.R.
name: Farquhar, D.R.
name: Zanation, A.M.
name: Zevallos, J.P.
name: Emerson, M.A.
name: Weissler, M.C.
name: Yarbrough, W.G.
name: Sheth, S.
name: Abedi-Ardekani, B.
name: Brennan, P.
name: Olshan, A.F.
Publisher: name: John Wiley and Sons Inc
Year: 2022

description: Background: Little is known about how factors combine to influence progression of squamous cell carcinoma of the head and neck (HNSCC). We aimed to evaluate multidimensional influences of factors associated with HNSCC stage by race. Methods: Using retrospective data, patients with similar socioeconomic status (SES), access to care (travel time/distance), and behavioral risk factors (tobacco/alcohol use and dental care) were grouped by latent class analysis. Relative frequency differences (RFD) were calculated to evaluate latent classes by stage, race, and p16 status. Results: We identified three latent classes. Advanced T-stage was higher for black (RFD = +20.2%; 95% CI: −4.6 to 44.9) than white patients (RFD = +10.7%; 95% CI: 2.1–19.3) in the low-SES/high-access/high-behavioral risk class and higher for both black (RFD = +29.6%; 95% CI: 4.7–54.5) and white patients (RFD = +23.9%; 95% CI: 15.2–32.6) in the low-SES/low-access/high-behavioral risk class. Conclusion: Results suggest that SES, access to care, and behavioral risk factors combine to underly the association with advanced T-stage. Additionally, differences by race warrant further investigation.
Value Iteration is Optic Composition
Creators: name: Hedges, Jules
name: Sakamoto, Riu Rodríguez
Publisher: name: arXiv
Year: 2022
Subjects: subject: Category Theory (math.CT)
subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: Dynamic programming is a class of algorithms used to compute optimal control policies for Markov decision processes. Dynamic programming is ubiquitous in control theory, and is also the foundation of reinforcement learning. In this paper, we show that value improvement, one of the main steps of dynamic programming, can be naturally seen as composition in a category of optics, and intuitively, the optimal value function is the limit of a chain of optic compositions. We illustrate this with three classic examples: the gridworld, the inverted pendulum and the savings problem. This is a first step towards a complete account of reinforcement learning in terms of parametrised optics.
description: In Proceedings ACT 2022, arXiv:2307.15519
Interpreting Quantum Discord in Quantum Metrology
Creators: name: Girolami, Davide
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Multipartite quantum systems show properties which do not admit a classical explanation. In particular, even nonentangled states can enjoy a kind of quantum correlations called quantum discord. I discuss some recent results on the role of quantum discord in metrology. Given an interferometric phase estimation protocol where the Hamiltonian is initially unknown to the experimentalist, the quantum discord of the probe state quantifies the minimum precision of the estimation. This provides a physical interpretation to a widely investigated information-theoretic quantity.
description: Contribution to the conference "DICE 2014: Spacetime - Matter - Quantum Mechanics"
Constraining Absolute Neutrino Masses via Detection of Galactic Supernova Neutrinos at JUNO
Creators: name: Lu, Jia-Shu
name: Cao, Jun
name: Li, Yu-Feng
name: Zhou, Shun
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A high-statistics measurement of the neutrinos from a galactic core-collapse supernova is extremely important for understanding the explosion mechanism, and studying the intrinsic properties of neutrinos themselves. In this paper, we explore the possibility to constrain the absolute scale of neutrino masses $m^{}_ν$ via the detection of galactic supernova neutrinos at the Jiangmen Underground Neutrino Observatory (JUNO) with a 20 kiloton liquid-scintillator detector. In assumption of a nearly-degenerate neutrino mass spectrum and a normal mass ordering, the upper bound on the absolute neutrino mass is found to be $m^{}_ν< (0.83 \pm 0.24)~{\rm eV}$ at the 95% confidence level for a typical galactic supernova at a distance of 10 kpc, where the mean value and standard deviation are shown to account for statistical fluctuations. For comparison, we find that the bound in the Super-Kamiokande experiment is $m^{}_ν< (0.94 \pm 0.28)~{\rm eV}$ at the same confidence level. However, the upper bound will be relaxed when the model parameters characterizing the time structure of supernova neutrino fluxes are not exactly known, and when the neutrino mass ordering is inverted.
description: 22 pages, 6 figures, more discussions on systematic uncertainties, matches the published version
MPEC 2023-U106 : 2023 UQ1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 UQ1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Preparation of entanglement between atoms in spatially separated cavities via fiber loss
Creators: name: Su, Shi-Lei
name: Shao, Xiao-Qiang
name: Guo, Qi
name: Cheng, Liu-Yong
name: Wang, Hong-Fu
name: Zhang, Shou
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a scheme to prepare a maximally entangled state for two Lambda-type atoms trapped in separate optical cavities coupled through an optical fiber based on the combined effect of the unitary dynamics and the dissipative process. Our work shows that the fiber loss, as well as the atomic spontaneous emission and the cavity decay, is no longer undesirable, but requisite to prepare the distributed entanglement, which is meaningful for the long distance quantum information processing tasks. Originating from an arbitrary state, the desired state could be prepared without precise time control. The robustness of the scheme is numerically demonstrated by considering various parameters.
description: 16 pages, 6 figures
Bounds and extremal graphs for total dominating identifying codes
Creators: name: Foucaud, Florent
name: Lehtilä, Tuomo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C69

description: An identifying code $C$ of a graph $G$ is a dominating set of $G$ such that any two distinct vertices of $G$ have distinct closed neighbourhoods within $C$. The smallest size of an identifying code of $G$ is denoted $γ^{\text{ID}}(G)$. When every vertex of $G$ also has a neighbour in $C$, it is said to be a total dominating identifying code of $G$, and the smallest size of a total dominating identifying code of $G$ is denoted by $γ_t^{\text{ID}}(G)$. Extending similar characterizations for identifying codes from the literature, we characterize those graphs $G$ of order $n$ with $γ_t^{\text{ID}}(G)=n$ (the only such connected graph is $P_3$) and $γ_t^{\text{ID}}(G)=n-1$ (such graphs either satisfy $γ^{\text{ID}}(G)=n-1$ or are built from certain such graphs by adding a set of universal vertices, to each of which a private leaf is attached). Then, using bounds from the literature, we remark that any (open and closed) twin-free tree of order $n$ has a total dominating identifying code of size at most $\frac{3n}{4}$. This bound is tight, and we characterize the trees reaching it. Moreover, by a new proof, we show that this bound actually holds for the larger class of all twin-free graphs of girth at least 5. The cycle $C_8$ also attains this bound. We also provide a generalized bound for all graphs of girth at least 5 (possibly with twins). Finally, we relate $γ_t^{\text{ID}}(G)$ to the related parameter $γ^{\text{ID}}(G)$ as well as the location-domination number of $G$ and its variants, providing bounds that are either tight or almost tight.
On the formation of compact, massive sub-systems in stellar clusters and its relation with intermediate mass black holes
Creators: name: Arca-Sedda, Manuel
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: During their evolution, star clusters undergo mass segregation, by which the orbits of the most massive stars shrink, while the lighter stars move outwards from the cluster centre. In this context, recent observations and dynamical modelling of several galactic and extra-galactic globular clusters (GCs) suggest that most of them show, close to their centre, an overabundance of mass whose nature is still matter of debate. For instance, many works show that orbitally segregated stars may collide with each other in a runaway fashion, leading to the formation of a very massive star or an intermediate mass black hole (IMBH) with a mass comparable to the observed mass excess. On the other hand, segregated stars can form a dense system if the IMBH formation fails. In this paper we study the early formation phase of a dense, massive sub-system (MSS) in several GCs models using a recently developed semi-analytical treatment of the mass segregation process. In order to investigate how the MSS properties depend on the host cluster properties, we varied initial mass function (IMF), total mass, spatial distribution and metallicity of our models. Our results show how the IMF contributes to determine the final mass of the MSS, while the metallicity and the spatial distribution play a minor role. The method presented in this paper allowed us to provide scaling relations that connect the MSS mass and the host cluster mass in agreement with the observed correlation. In order to follow the early formation stage of the MSSs and improve our statistical results, we performed several $N$-body simulations of stellar clusters with masses between $10^3$ and $2\times 10^5$ solar masses.
description: 17 pages, 13 figures, 6 tables
Confronting Legacies of Structural Racism and Settler Colonialism to Understand COVID-19 Impacts on the Navajo Nation
Creators: name: Montoya, T.
name: Emerson, M.A.
Publisher: name: American Public Health Association Inc.
Year: 2021

description: At the time of writing, the United States remains the global epicenter of the COVID-19 pandemic with mass vaccination efforts still months away from completion. Unsurprisingly, the spread of COVID-19, an infectious disease caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is not distributed equally. Legacies of structural racism and violence, specifically within settler colonial contexts, continue to manifest in contemporary examples of social and economic disparity for Black, Indigenous, and other People of Color populations. American Indian populations, in both rural and urban locales, face exceptional public health challenges. These inadequacies deprive American Indians of fundamental human rights including access to quality healthcare, clean water, and adequate living conditions.
ZMI - Newsletter 2/2001
Creators: name: (:Unkn) Unknown
name: Justus Liebig University Giessen
Publisher: name: Universitätsbibliothek Gießen
Year: 2001
Subjects: subject: ddc:070

description: Grimme-Preis an "politik-digital.de" - DFG bewilligt Forschergruppe "Texttechnologische Informationsmodellierung" - auch Gießener Projekt "Semantik generischer Dokumentstrukturen" beteiligt(Leitung: Prof. Henning Lobin) - "Online-Wahlen 2002" - Bundeszentrale für politische Bildung bewilligt Mittelfür ein ZMI-Forschungsprojekt - PROMETHEUS - Digitales Bildarchiv für Forschung und Lehre - Prof. Dietmar Rösler auf dem taiwanesische Germanistentag und in Luzern - Prof. Wolfgang Gast bei der LPR, bei der Akademie für politische Bildung in Tutzing und bei einer Medienpädagogischen Tagung in Gießen - Prof. Claus Leggewie in der FR über "Elende Ted-Demokratie".
Breast cancer treatment delays by socioeconomic and health care access latent classes in Black and White women
Creators: name: Johnson-Thompson, M.
name: Troester, M.A.
name: Emerson, M.A.
name: Olshan, A.F.
name: Reeder-Hayes, K.E.
name: Tan, X.
name: Maduekwe, U.
name: Golightly, Y.M.
name: Aiello, A.E.
Publisher: name: John Wiley and Sons Inc
Year: 2020

description: Background: Breast cancer mortality is higher for Black and younger women. This study evaluated 2 possible contributors to disparities—time to treatment and treatment duration—by race and age. Methods: Among 2841 participants with stage I-III disease in the Carolina Breast Cancer Study, we identified groups of women with similar patterns of socioeconomic status (SES), access to care, and tumor characteristics using latent class analysis. We then evaluated latent classes in association with treatment delay (initiation >60 days after diagnosis) and treatment duration (in quartiles by treatment modality). Results: Thirty-two percent of younger Black women were in the highest quartile of treatment duration (versus 22% of younger White women). Black women experienced a higher frequency of delayed treatment (adjusted relative frequency difference [RFD], 5.5% [95% CI, 3.2%-7.8%]) and prolonged treatment duration (RFD, 8.8% [95% CI, 5.7%-12.0%]). Low SES was significantly associated with treatment delay among White women (RFD, 3.5% [95% CI, 1.1%-5.9%]), but treatment delay was high at all levels of SES in Black women (eg, 11.7% in high SES Black women compared with 10.6% and 6.7% among low and high SES White women, respectively). Neither SES nor access to care classes were significantly associated with delayed initiation among Black women, but both low SES and more barriers were associated with treatment duration across both groups. Conclusions: Factors that influence treatment timeliness persist throughout the care continuum, with prolonged treatment duration being a sensitive indicator of differences by race, SES, and care barriers.
On the Pre- and Promonoidal Structure of Spacetime
Creators: name: Hefford, James
name: Kissinger, Aleks
Publisher: name: arXiv
Year: 2022
Subjects: subject: Category Theory (math.CT)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The notion of a joint system, as captured by the monoidal (a.k.a. tensor) product, is fundamental to the compositional, process-theoretic approach to physical theories. Promonoidal categories generalise monoidal categories by replacing the functors normally used to form joint systems with profunctors. Intuitively, this allows the formation of joint systems which may not always give a system again, but instead a generalised system given by a presheaf. This extra freedom gives a new, richer notion of joint systems that can be applied to categorical formulations of spacetime. Whereas previous formulations have relied on partial monoidal structure that is only defined on pairs of independent (i.e. spacelike separated) systems, here we give a concrete formulation of spacetime where the notion of a joint system is defined for any pair of systems as a presheaf. The representable presheaves correspond precisely to those actual systems that arise from combining spacelike systems, whereas more general presheaves correspond to virtual systems which inherit some of the logical/compositional properties of their ``actual'' counterparts. We show that there are two ways of doing this, corresponding roughly to relativistic versions of conjunction and disjunction. The former endows the category of spacetime slices in a Lorentzian manifold with a promonoidal structure, whereas the latter augments this structure with an (even more) generalised way to combine systems that fails the interchange law.
description: In Proceedings ACT 2022, arXiv:2307.15519
Improved nonsinglet QCD analysis of the fixed-target DIS data
Creators: name: Kotikov, A. V.
name: Krivokhizhin, V. G.
name: Shaikhatdenov, B. G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Deep inelastic scattering data on $F_2$ structure function obtained by BCDMS, SLAC and NMC collaborations in fixed-target experiments were analyzed in the non-singlet approximation with next-to-next-to-leading-order accuracy. The strong coupling constant is found to be $α_s(M_Z^2) = 0.1157 \pm 0.0022 (total\,\,\,exp.error) + \biggl\{\begin{array}{l} +0.0028 \\ -0.0016 \end{array} (theor)$, which is seen to be well compatible with the average world value. Results obtained in the present paper by carrying out fits similar to those done in our earlier study, with the exception for systematic errors in BCDMS data taken into account in a different way, confirm those which were derived in that same paper.
description: 19 pages, 11 figs, 8 tables, published in JPG42. arXiv admin note: text overlap with arXiv:0912.4672
MPEC 2023-U107 : 2023 UR1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 UR1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
ZMI - Newsletter 3/2001
Creators: name: (:Unkn) Unknown
name: Justus Liebig University Giessen
Publisher: name: Universitätsbibliothek Gießen
Year: 2001
Subjects: subject: ddc:070

description: ZMI bezieht Räume in der Ludwigstraße!!! - BMBF bewilligt Verbundprojekt "Medienintensive Lehrmodule in der Computerlinguistik-Ausbildung (MiLCA)" - "Call for Papers" der "Modern Language Association of America" (MLA) - Das Kommentierte Vorlesungsverzeichnis "Medienbezogene Lehrangebote" des ZMI liegt vor!!!
ZMI - Newsletter 4/2001
Creators: name: (:Unkn) Unknown
name: Justus Liebig University Giessen
Publisher: name: Universitätsbibliothek Gießen
Year: 2001
Subjects: subject: ddc:070

description: Prof. Rösler beim Kongreß der Deutschen Gesellschaft für Fremdsprachenforschung - Prof. Lobin Vorsitzender der GLDV - Dr. Kirchner über die Selbstdarstellung radikaler Islamisten im Internet (Literaturliste) - Aktivitäten der Sektion IV - Prof. Quandt über "Kommunikationsprobleme im deutsch-amerikanischen Dialog".
Extending Resource Monotones using Kan Extensions
Creators: name: Cockett, Robin
name: Geng, Isabelle Jianing
name: Scandolo, Carlo Maria
name: Srinivasan, Priyaa Varshinee
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Category Theory (math.CT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In this paper we generalize the framework proposed by Gour and Tomamichel regarding extensions of monotones for resource theories. A monotone for a resource theory assigns a real number to each resource in the theory signifying the utility or the value of the resource. Gour and Tomamichel studied the problem of extending monotones using set-theoretical framework when a resource theory embeds fully and faithfully into the larger theory. One can generalize the problem of computing monotone extensions to scenarios when there exists a functorial transformation of one resource theory to another instead of just a full and faithful inclusion. In this article, we show that (point-wise) Kan extensions provide a precise categorical framework to describe and compute such extensions of monotones. To set up monotone extensions using Kan extensions, we introduce partitioned categories (pCat)as a framework for resource theories and pCat functors to formalize relationship between resource theories. We describe monotones as pCat functors into the preorder of non-negative real numbers, and describe extending monotones along any pCat functor using Kan extensions. We show how our framework works by applying it to extend entanglement monotones for bipartite pure states to bipartite mixed states, to extend classical divergences to the quantum setting, and to extend a non-uniformity monotone from classical probabilistic theory to quantum theory.
description: In Proceedings ACT 2022, arXiv:2307.15519
ZMI - Newsletter 5/2001
Creators: name: (:Unkn) Unknown
name: Justus Liebig University Giessen
Publisher: name: Universitätsbibliothek Gießen
Year: 2001
Subjects: subject: ddc:070

description: Prof. Groß nimmt Stellung zur Neuordnung des Datenschutzes in Hessen - Grimme-Online-Award - Prof. Legutke Vorsitzender der DGFF - Halboffene multimediale Lernumgebungen - Internetbasiertes Flurnamen-Informationssystem - Linguistische Analysen von persönlichen Homepages - Digitale Medien und Flurnamenforschung - Theatralitätskonzepte und -strategien - "Prometheus" umgezogen - Medien-Autoren: Masterstudiengang in Stuttgart
Effects of Interatomic Coupling on Magnetic Anisotropy and Order of Spins on Metallic Surfaces
Creators: name: Ruiz-Díaz, P.
name: Stepanyuk, O. V.
name: Stepanyuk, V. S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Both quantum and classical behavior of single atomic spins on surfaces is determined by the local anisotropy of adatoms and their coupling to the immediate electronic environment. Yet adatoms seldom reside on surfaces alone and it is generally acknowledged that substrated-mediated interactions can couple single spins among each other impacting their magnetic behavior. Here we show that also magnetic anisotropy, which is usually considered to be a constant determined by the local crystal field, can be extremely sensitive to such interactions. By the example of Co dimers on Cu(001) and Pt(001) surfaces we highlight the intricate interplay of exchange coupling and magnetic anisotropy providing a much sought possibility to tune the latter through deliberate adjustment of the adatoms' separation. As a technologically relevant implication we demonstrate the impact of such emergent non-local anisotropy on the hysterectic properties of single-atom magnetization curves.
description: Accepted
ZMI - Newsletter 6/2001
Creators: name: (:Unkn) Unknown
name: Justus Liebig University Giessen
Publisher: name: Universitätsbibliothek Gießen
Year: 2001
Subjects: subject: ddc:070

description: Workshop "Online-Wahlen" in Berlin - Vom Lehrwerk zur multimedialen Lernumgebung??? - Drittmittelprojekt zur Entwicklung und Evaluation halboffener webbasierter Lernumgebungen - Michael K. Legutke Mitglied des Wissenschaftlichen "Beirats Sprache" des Goethe-Instituts.
ZMI - Newsletter 1/2002
Creators: name: (:Unkn) Unknown
name: Justus Liebig University Giessen
Publisher: name: Universitätsbibliothek Gießen
Year: 2002
Subjects: subject: ddc:070

description: Erfolgsauftrag und Frauentore. Team ZMI überrascht beim Fußballturnier der Uni-Ballspielwoche - Internetportal des Bundes - Blockseminar "Online-Transaktionen" - "Körper & Kapital" - Hypertextsorten - Automatic Web Genre Definition - Dr. Eckart Voigts-Virchow Schatzmeister.
On embedding theorems for $\mathfrak{X}$-subgroups
Creators: name: Guo, Wenbin
name: Revin, Danila O.
name: Vasil'ev, Andrey V.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20E28, 20D20, 20D35

description: Let $\mathfrak{X}$ be a class of finite groups closed under subgroups, homomorphic images, and extensions. We study the question which goes back to the lectures of H. Wielandt in 1963-64: For a given $\mathfrak{X}$-subgroup $K$ and maximal $\mathfrak{X}$-subgroup $H$, is it possible to see embeddability of $K$ in $H$ (up to conjugacy) by their projections onto the factors of a fixed subnormal series. On the one hand, we construct examples where $K$ has the same projections as some subgroup of $H$ but is not conjugate to any subgroup of $H$. On the other hand, we prove that if $K$ normalizes the projections of a subgroup $H$, then $K$ is conjugate to a subgroup of $H$ even in the more general case when $H$ is a submaximal $\mathfrak{X}$-subgroup.
ZMI - Newsletter 2/2002
Creators: name: (:Unkn) Unknown
name: Justus Liebig University Giessen
Publisher: name: Universitätsbibliothek Gießen
Year: 2002
Subjects: subject: ddc:070

description: Prof. Groß bei der Anhörung zur Neuordnung der Datenschutzkontrolle des Hessischen Landtages - Veranstaltungsreihe zum Thema "Überwachungsstaat" - Online-Wahlkampf 2002 - Internet-based language-learning - Civil War(s) in contemporary performance arts.
Fock-Goncharov dual cluster varieties and Gross-Siebert mirrors
Creators: name: Argüz, Hülya
name: Bousseau, Pierrick
Publisher: name: arXiv
Year: 2022
Subjects: subject: Algebraic Geometry (math.AG)
subject: High Energy Physics - Theory (hep-th)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Cluster varieties come in pairs: for any $\mathcal{X}$ cluster variety there is an associated Fock-Goncharov dual $\mathcal{A}$ cluster variety. On the other hand, in the context of mirror symmetry, associated with any log Calabi-Yau variety is its mirror dual, which can be constructed using the enumerative geometry of rational curves in the framework of the Gross-Siebert program. In this paper we bridge the theory of cluster varieties with the algebro-geometric framework of Gross-Siebert mirror symmetry. Particularly, we show that the mirror to the $\mathcal{X}$ cluster variety is a degeneration of the Fock-Goncharov dual $\mathcal{A}$ cluster variety and vice versa. To do this, we investigate how the cluster scattering diagram of Gross-Hacking-Keel-Kontsevich compares with the canonical scattering diagram defined by Gross-Siebert to construct mirror duals in arbitrary dimensions. Consequently, we derive an enumerative interpretation of the cluster scattering diagram. Along the way, we prove the Frobenius structure conjecture for a class of log Calabi-Yau varieties obtained as blow-ups of toric varieties.
description: 51 pages, revised version published in Journal f\"ur die reine und angewandte Mathematik (Crelles Journal)
Jet schemes of the closure of nilpotent orbits
Creators: name: Moreau, Anne
name: Yu, Rupert W. T.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Representation Theory (math.RT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We study in this paper the jet schemes of the closure of nilpotent orbits in a finite-dimensional complex reductive Lie algebra. For the nilpotent cone, which is the closure of the regular nilpotent orbit, all the jet schemes are irreducible. This was first observed by Eisenbud and Frenkel, and follows from a strong result of Mustautca (2001). Using induction and restriction of "little" nilpotent orbits in reductive Lie algebras, we show that for a large number of nilpotent orbits, the jet schemes of their closure are reducible. As a consequence, we obtain certain geometrical properties of these nilpotent orbit closures.
description: 39 pages in English. Final version, to appear in Pacific J. of Math
BASICS OF PREPARATION OF FINANCIAL STATEMENTS ACCORDING TO IFRS
Creators: name: Pirimkulov, Obid
Publisher: name: Zenodo
Year: 2024

description: Accounting is an information system that determines, processes and delivers financial information about a specific business entity to users interested in its financial status in the form of financial statements. The goal of accounting is to satisfy the needs of various users for information with the lowest costs for obtaining this information.
ZMI - Newsletter 3/2002
Creators: name: (:Unkn) Unknown
name: Justus Liebig University Giessen
Publisher: name: Universitätsbibliothek Gießen
Year: 2002
Subjects: subject: ddc:070

description: ZMI sucht Mitarbeiter !!!!!!! - www.indirekter- freistoss.de - "Koordination von eLearning-Aktivitäten an der JLU" - ein Projekt im Rahmen desFörderfonds - Budget der "Hochschuldidaktischen Weiterbildung für Lehrende der JLU" (HDW) verdoppelt. Neues uni-internes Abrechnungssystem - Prof. Rösler auf dem Germanistentag in Toronto.
Pairwise disjoint perfect matchings in $r$-edge-connected $r$-regular graphs
Creators: name: Ma, Yulai
name: Mattiolo, Davide
name: Steffen, Eckhard
name: Wolf, Isaak H.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: Thomassen [Problem 1 in Factorizing regular graphs, J. Combin. Theory Ser. B, 141 (2020), 343-351] asked whether every $r$-edge-connected $r$-regular graph of even order has $r-2$ pairwise disjoint perfect matchings. We show that this is not the case if $r \equiv 2 \text{ mod } 4$. Together with a recent result of Mattiolo and Steffen [Highly edge-connected regular graphs without large factorizable subgraphs, J. Graph Theory, 99 (2022), 107-116] this solves Thomassen's problem for all even $r$. It turns out that our methods are limited to the even case of Thomassen's problem. We then prove some equivalences of statements on pairwise disjoint perfect matchings in highly edge-connected regular graphs, where the perfect matchings contain or avoid fixed sets of edges. Based on these results we relate statements on pairwise disjoint perfect matchings of 5-edge-connected 5-regular graphs to well-known conjectures for cubic graphs, such as the Fan-Raspaud Conjecture, the Berge-Fulkerson Conjecture and the $5$-Cycle Double Cover Conjecture.
description: 24 pages
Correlates of Alcohol-Related Treatment Among American Indians and Alaska Natives with Lifetime Alcohol Use Disorder
Creators: name: Caetano, R.
name: Moore, R.S.
name: Emerson, M.A.
Publisher: name: Blackwell Publishing Ltd
Year: 2019

description: Background: To describe sociodemographic and selected psychiatric disorder patterns and estimate correlates of seeking alcohol treatment among American Indians and Alaska Natives (AIAN) and non-Hispanic Whites (NHW) with lifetime alcohol use disorder (AUD). Methods: Data come from the 2012 to 2013 U.S. National Epidemiologic Survey on Alcohol and Related Conditions-III. We retrospectively identified participants who completed information on lifetime AUD, race/ethnicity, and seeking alcohol treatment or help for AUD. We used a generalized linear model with a log link and Poisson distribution to estimate prevalence ratios (PRs) among adults with DSM-5 lifetime AUD. We included the following correlates: race/ethnicity, sex, age, personal annual income, marital status, education, urban/rural status, U.S. region, any illegal drug use disorder, nicotine use disorder, and select mood-, anxiety-, personality-, and trauma-related disorders. Results: Among AIAN, the prevalence of lifetime AUD was 46.6%. Among AIAN with lifetime AUD, 33.8% sought alcohol-related treatment. Among individuals with lifetime AUD, AIAN were associated with greater alcohol-related treatment-seeking compared to NHW (adjusted PR = 1.41 [95% CI 1.26 to 1.58]). Among AIAN with AUD, being male and age 35 to 64 were statistically significant correlates of seeking treatment or help for AUD. Conclusions: A relatively higher proportion of AIAN than NHW with AUDs sought alcohol treatment. Among individuals with lifetime AUD, significant demographic and psychiatric disorder correlates of treatment are present, showing that certain groups are less likely to seek treatment or help for alcohol-related issues. Among AIAN with AUD, these correlates may reflect distinct patterns of seeking alcohol-related treatment, which can inform more effective treatment promotion efforts with this population.
Nuclear Modification Factors for Hadrons At Forward and Backward Rapidities in Deuteron Gold Collisions at √sNN=200GeV
Creators: name: Chun, Zhang
Publisher: name: Zenodo
Year: 2005
Subjects: hadron
deuteron
rapidity
suppression
enhancement
nuclear modification

description: We report on the charged hadron production in the deuteron-gold reactions at √sNN = 200 GeV. Our measurements in the deuteron-direction cover 1:4< η <2:2,referred to as forward rapidity, and in the gold-direction2:0< η <1:4, referred to as backward rapidity, and a transverse momentum range from 0.5 – 4.0 GeV/c. We observe a suppression relative to binary collision scaling at forward rapidity, sensitive to low momentum fraction(x) partons in the gold nucleus,and an enhancement at backward rapidity, sensitive to high (x) partons in the gold nucleus.