cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Causal Discovery with Continuous Additive Noise Models
Creators: name: Peters, Jonas
name: Mooij, Joris
name: Janzing, Dominik
name: Schölkopf, Bernhard
Publisher: name: arXiv
Year: 2013
Subjects: subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: We consider the problem of learning causal directed acyclic graphs from an observational joint distribution. One can use these graphs to predict the outcome of interventional experiments, from which data are often not available. We show that if the observational distribution follows a structural equation model with an additive noise structure, the directed acyclic graph becomes identifiable from the distribution under mild conditions. This constitutes an interesting alternative to traditional methods that assume faithfulness and identify only the Markov equivalence class of the graph, thus leaving some edges undirected. We provide practical algorithms for finitely many samples, RESIT (Regression with Subsequent Independence Test) and two methods based on an independence score. We prove that RESIT is correct in the population setting and provide an empirical evaluation.
Signaling Interdependence to First-Generation College Students
Creators: name: Diaz-Gonzalez, Priscilla
name: Norman, Jasmine
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social and Behavioral Sciences

description: Although American universities are increasing educational access to first-generation college students (FGCS), FGCS continue to face various challenges that negatively affect their performance and overall experience in higher education. Stephens et al. (2012) proposed the cultural mismatch theory as a source of the present inequities that FGCS face in American universities. The cultural mismatch theory states that FGCS face a cultural mismatch with the university because there is a clash between FGCS’ interdependent cultural norms and the independent university culture (Stephens et al., 2012). Experiencing a cultural mismatch affects FGCS’ sense of belonging and overall academic performance. To demonstrate these effects, Townsend et al. (2012) conducted a study where they had FGCS read two different welcome letters (independent letter vs interdependent letter) and found that when FGCS experienced a cultural mismatch (i.e., viewing the independent letter) they experience lower cortisol levels and more positive emotions on their given task. Similarly, Stephens et al. (2012) found that when FGCS read university orientation materials (i.e., welcome letter from university president) based on an interdependent framework they performed better, compared to when they read a welcome letter based on an independent framework. In the current study, we will examine how cultural framing signaled through a course syllabus (interdependent vs interdependent) impacts FGCS’ sense of belonging and academic engagement in a biology course, as well as a sense of belonging at the broader university.
Effective Light Dynamics in Perturbed Photonic Crystals
Creators: name: De Nittis, Giuseppe
name: Lein, Max
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 35S05, 35Q60, 35Q61, 81Q10, 81Q15

description: In this work, we rigorously derive effective dynamics for light from within a limited frequency range propagating in a photonic crystal that is modulated on the macroscopic level; the perturbation parameter $λ\ll 1$ quantifies the separation of spatial scales. We do that by rewriting the dynamical Maxwell equations as a Schrödinger-type equation and adapting space-adiabatic perturbation theory. Just like in the case of the Bloch electron, we obtain a simpler, effective Maxwell operator for states from within a relevant almost invariant subspace. A correct physical interpretation for the effective dynamics requires to establish two additional facts about the almost invariant subspace: (1) The source-free condition has to be verified and (2) it has to support real states. The second point also forces one to consider a multiband problem even in the simplest possible setting; This turns out to be a major difficulty for the extension of semiclassical methods to the domain of photonic crystals.
description: 47 pages, 1 figure
Distinct-symmetry spin liquid states and phase diagram of Kitaev-Hubbard model
Creators: name: Liang, Long
name: Wang, Ziqiang
name: Yu, Yue
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report the finding of a series of symmetry distinct spin liquid (SL) states and a rich phase diagram in a half-filled honeycomb lattice Hubbard model with spin-dependent hopping amplitude t'. We first study the magnetic instability of the system and find two antiferromagnetic orders beyond a critical Hubbard U which increases with the ratio t'/t . For $t'$ approaching to $t$, the semimetal (SM) transforms to a U(1) SL and then to the Kitaev Z_2 SL as U increases. In a wide middle range of t'/t, the latter is replaced by a U(1) SL to $SU(2)$ SL transition. The physical properties of the stable SL phases are discussed.
description: 10 pages, 9 figures
Fourteen years of R/qtl: Just barely sustainable
Creators: name: Broman, Karl W.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computation (stat.CO)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: R/qtl is an R package for mapping quantitative trait loci (genetic loci that contribute to variation in quantitative traits) in experimental crosses. Its development began in 2000. There have been 38 software releases since 2001. The latest release contains 35k lines of R code and 24k lines of C code, plus 15k lines of code for the documentation. Challenges in the development and maintenance of the software are discussed. A key to the success of R/qtl is that it remains a central tool for the chief developer's own research work, and so its maintenance is of selfish importance.
description: Previously submission to First Workshop on Sustainable Software for Science: Practice and Experiences (WSSSPE), http://wssspe.researchcomputing.org.uk; revised for submission to the Journal of Open Research Software, http://openresearchsoftware.metajnl.com/
Memory for Multisensory Objects within Virtual Environments
Creators: name: Duarte, Shea
name: Geng, Joy
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Cognitive Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: Memory
subject: Multisensory perception

description: Our previous research has shown that when an object is paired with its congruent sound (e.g., a dog and a bark) during encoding, recollection-based recognition memory is improved for that item relative to items encoded alongside an incongruent or control white noise sound, even when all of these sounds were task-irrelevant at encoding (Duarte, Ghetti, & Geng, 2022). In the present study, we investigate whether this recollection also supports memory for the environment in which an item was encoded, and, if so, to what degree of specificity. Here, we present participants with objects paired with congruent sounds or meaningless control sounds, and place them within one of 4 virtual environments. We then test memory for the environment in which each item was encoded, confidence in that judgement, and the location in which that object was placed in the environment.
Pre-analysis Plan: A Social Psychology Approach on Repression and Individual Collective Actions
Creators: name: Chiang, Yunyu
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social and Behavioral Sciences
subject: collective action
subject: political violence
subject: protests
subject: repression
subject: social movements

description: This project explores how exposure to repression shapes attitudes and support toward subsequent collective action tendencies using a survey experiment in Uganda.
Rigidity for Quasi-Möbius Actions on Fractal Metric Spaces
Creators: name: Kinneberg, Kyle
Publisher: name: arXiv
Year: 2013
Subjects: subject: Metric Geometry (math.MG)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C24, 30L10

description: In \cite{BK02}, M. Bonk and B. Kleiner proved a rigidity theorem for expanding quasi-Möbius group actions on Ahlfors $n$-regular metric spaces with topological dimension $n$. This led naturally to a rigidity result for quasi-convex geometric actions on CAT$(-1)$-spaces that can be seen as a metric analog to the "entropy rigidity" theorems of U. Hamenstädt and M. Bourdon. Building on the ideas developed in \cite{BK02}, we establish a rigidity theorem for certain expanding quasi-Möbius group actions on spaces with different metric and topological dimensions. This is motivated by a corresponding entropy rigidity result in the coarse geometric setting.
description: 33 pages; v2: published version
Linear response relations in fluctuational electrodynamics
Creators: name: Golyk, Vladyslav A.
name: Krüger, Matthias
name: Kardar, Mehran
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Near field radiative heat transfer and dynamic Casimir forces are just two instances of topics of technological and fundamental interest studied via the formalism of fluctuational electrodynamics. From the perspective of experiment and simulations, it is hard to precisely control and probe such non-equilibrium situations. Fluctuations in equilibrium are easier to measure, and can typically be related to non-equilibrium response functions by Green-Kubo relations. We consider a collection of arbitrary objects in vacuum, perturbed by changing the temperature or velocity of one object. Developing a method for computation of higher order correlation functions in fluctuational electrodynamics, we explicitly compare linear response and equilibrium fluctuations. We obtain a Green-Kubo relation for the radiative heat transfer, as well as a closed formula for the vacuum friction in arbitrary geometries in the framework of scattering theory. We comment on the signature of the radiative heat conductivity in equilibrium fluctuations.
description: Main article: 5 pages, 2 figures; Supplemental Material: 2 pages
General proof of the entropy principle for self-gravitating fluid in static spacetimes
Creators: name: Fang, Xiongjun
name: Gao, Sijie
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show that for any perfect fluid in a static spacetime, if the Einstein constraint equation is satisfied and the temperature of the fluid obeys Tolman's law, then the other components of Einstein's equation are implied by the assumption that the total entropy of the fluid achieves an extremum for fixed total particle number and for all variations of metric with certain boundary conditions. Conversely, one can show that the extrema of the total entropy of the fluid are implied by Einstein's equation. Compared to previous works on this issue, we do not require spherical symmetry for the spacetime. Our results suggest a general and solid connection between thermodynamics and general relativity.
description: 11 pages, no figure. Order of the two theorems exchanged, matches published version
Parametrized modified gravity constraints after Planck
Creators: name: Hu, Bin
name: Liguori, Michele
name: Bartolo, Nicola
name: Matarrese, Sabino
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We constrain $f(R)$ and chameleon-type modified gravity in the framework of the Berstchinger-Zukin parametrization using the recent released Planck data, including both CMB temperature power spectrum and lensing potential power spectrum. Some other external data sets are included, such as BAO measurements from the 6dFGS, SDSS DR7 and BOSS DR9 surveys, HST $H_0$ measurement and supernovae from Union2.1 compilation. We also use WMAP9yr data for consistency check and comparison. For $f(R)$ gravity, WMAP9yr results can only give quite a loose constraint on the modified gravity parameter $B_0$, which is related to the present value of the Compton wavelength of the extra scalar degree of freedom, $B_0<3.37$ at $95\% {\rm C.L.}$ We demonstrate that this constraint mainly comes from the late ISW effect. With only Planck CMB temperature power-spectrum data, we can improve the WMAP9yr result by a factor $3.7$ ($B_0<0.91$ at $95\% {\rm C.L.}$). If the Planck lensing potential power-spectrum data are also taken into account, the constraint can be further strenghtened by a factor $5.1$ ($B_0<0.18$ at $95\% {\rm C.L.}$). This major improvement mainly comes from the small-scale lensing signal. Furthermore, BAO, HST and supernovae data could slightly improve the $B_0$ bound ($B_0<0.12$ at $95\% {\rm C.L.}$).For the chameleon-type model, we find that the data set which we used cannot constrain the Compton wavelength $B_0$ and the potential index $s$ of chameleon field, but can give a tight constraint on the parameter $β_1=1.043^{+0.163}_{-0.104}$ at $95\% {\rm C.L.}$ ($β_1=1$ in general relativity), which accounts for the non-minimal coupling between the chameleon field and the matter component. In addition, we find that both modified gravity models we considered favor a relatively higher Hubble parameter than the concordance LCDM model in general relativity.
description: Match to the published version. Several numerical bugs about modified gravity parameters removed, updated results are based on the analysis of new chains. $B_0$ constraint become loose, other parameter bounds do not change. One more figure added in order to explain the degeneracy of parameters between $\beta_1$ and $B_0$ in the chameleon-type models
Lectures on Minimal Surface Theory
Creators: name: White, Brian
Publisher: name: arXiv
Year: 2013
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: Primary: 53A10, Secondary: 49Q05, 53C42

description: An article based on a four-lecture introductory minicourse on minimal surface theory given at the 2013 summer program of the Institute for Advanced Study and the Park City Mathematics Institute.
description: 46 pages, 6 figures. Some references added/corrected on August 2, 2014. A few minor corrections on October 16, 2015. Additional typos corrected on January 17, 2016
Unitary S Matrices With Long-Range Correlations and the Quantum Black Hole
Creators: name: Akhoury, Ratindranath
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose an S matrix approach to the quantum black hole in which causality, unitarity and their interrelation play a prominent role. Assuming the 't Hooft S matrix ansatz for a gravitating region surrounded by an asymptotically flat space-time we find a non-local transformation which changes the standard causality requirement but is a symmetry of the unitarity condition of the S matrix. This new S matrix then implies correlations between the in and out states of the theory with the involvement of a third entity which in the case of a quantum black hole, we argue is the horizon S matrix. Such correlations are thus linked to preserving the unitarity of the S matrix and to the fact that entangling unitary operators are nonlocal. The analysis is performed within the Bogoliubov S matrix framework by considering a spacetime consisting of causal complements with a boundary in between. No particular metric or lagrangian dynamics need be invoked even to obtain an evolution equation for the full S matrix. Constraints imposed by the new causality requirement and implications for the effectiveness of field theoretical descriptions and for complementarity are also discussed. We find that the tension between information preservation and complementarity may be resolved provided the full quantum gravity theory either through symmetries or fine tuning forbids the occurrence of closed time like curves of information flow. Then, even if causality is violated near the horizon at any intermediate stage, a standard causal ordering may be preserved for the observer away from the horizon. In the context of the black hole, the novelty of our formulation is that it appears well suited to understand unitarity at any intermediate stage of black hole evaporation. Moreover, it is applicable generally to all theories with long range correlations including the final state projection models.
description: 47 pages Latex, 1 figure.Corrected typos. Some section titles changed. Minor clarifying additions to all sections. Conclusions unchanged. Accepted for publication in JHEP
Boolean decision problems with competing interactions on scale-free networks: Equilibrium and nonequilibrium behavior in an external bias
Creators: name: Zhu, Zheng
name: Andresen, Juan Carlos
name: Moore, M. A.
name: Katzgraber, Helmut G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the equilibrium and nonequilibrium properties of Boolean decision problems with competing interactions on scale-free networks in an external bias (magnetic field). Previous studies at zero field have shown a remarkable equilibrium stability of Boolean variables (Ising spins) with competing interactions (spin glasses) on scale-free networks. When the exponent that describes the power-law decay of the connectivity of the network is strictly larger than 3, the system undergoes a spin-glass transition. However, when the exponent is equal to or less than 3, the glass phase is stable for all temperatures. First, we perform finite-temperature Monte Carlo simulations in a field to test the robustness of the spin-glass phase and show that the system has a spin-glass phase in a field, i.e., exhibits a de Almeida-Thouless line. Furthermore, we study avalanche distributions when the system is driven by a field at zero temperature to test if the system displays self-organized criticality. Numerical results suggest that avalanches (damage) can spread across the whole system with nonzero probability when the decay exponent of the interaction degree is less than or equal to 2, i.e., that Boolean decision problems on scale-free networks with competing interactions can be fragile when not in thermal equilibrium.
description: 14 pages, 10 figures
FPU physics with nanomechanical graphene resonators: intrinsic relaxation and thermalization from flexural mode coupling
Creators: name: Midtvedt, Daniel
name: Qi, Zenan
name: Croy, Alexander
name: Park, Harold S.
name: Isacsson, Andreas
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Thermalization in nonlinear systems is a central concept in statistical mechanics and has been extensively studied theoretically since the seminal work of Fermi, Pasta and Ulam (FPU). Using molecular dynamics and continuum modeling of a ring-down setup, we show that thermalization due to nonlinear mode coupling intrinsically limits the quality factor of nanomechanical graphene drums and turns them into potential test beds for FPU physics. We find the thermalization rate $Γ$ to be independent of radius and scaling as $Γ\sim T^*/ε_{\rm pre}^2$, where $T^*$ and $ε_{\rm pre}$ are effective resonator temperature and prestrain.
Jumping the energetics queue: Modulation of pulsar signals by extraterrestrial civilizations
Creators: name: Chennamangalam, Jayanth
name: Siemion, Andrew P. V.
name: Lorimer, D. R.
name: Werthimer, Dan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: It has been speculated that technological civilizations evolve along an energy consumption scale first formulated by Kardashev, ranging from human-like civilizations that consume energy at a rate of $\sim 10^{19}$ erg s$^{-1}$ to hypothetical highly advanced civilizations that can consume $\sim 10^{44}$ erg s$^{-1}$. Since the transmission power of a beacon a civilization can build depends on the energy it possesses, to make it bright enough to be seen across the Galaxy would require high technological advancement. In this paper, we discuss the possibility of a civilization using naturally-occurring radio transmitters -- specifically, radio pulsars -- to overcome the Kardashev limit of their developmental stage and transmit super-Kardashev power. This is achieved by the use of a modulator situated around a pulsar, that modulates the pulsar signal, encoding information onto its natural emission. We discuss a simple modulation model using pulse nulling and considerations for detecting such a signal. We find that a pulsar with a nulling modulator will exhibit an excess of thermal emission peaking in the ultraviolet during its null phases, revealing the existence of a modulator.
description: 6 pages, 2 figures, Published in New Astronomy
20240515 MANUSCRIPT Enigmatic Spontaneous hypoglycemia During Prolonged C omplete Remission in a child with autoantiboy-positive diabetes.pdf
Creators: name: Shankar, Srushti
name: Srikanta, Sathyanarayana
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 320208
subject: Endocrinology

description: 20240515 MANUSCRIPT Enigmatic Spontaneous hypoglycemia During Prolonged C omplete Remission in a child with autoantiboy-positive diabetes
Photon correlations from ultra-strong optical nonlinearities
Creators: name: Ridolfo, Alessandro
name: del Valle, Elena
name: Hartmann, Michael J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the full field and frequency filtered output photon statistics of a resonator in thermal equilibrium with a bath and containing an arbitrarily large quartic nonlinearity. According to the general theory of photodetection, we derive general input-output relations valid for the ultra-anharmonic regime, where the nonlinearity becomes comparable to the energy of the resonator, and show how the emission properties are modified as compared to the generally assumed simple anharmonic regime. We analyse the impact of the nonlinearity on the full statistics of the emission and its spectral properties. In particular we derive a semi-analytical expression for the frequency resolved two-photon correlations or two-photon spectrum of the system in terms of the master equation coefficients and density matrix. This provides a very clear insight into the level structure and emission possibilities of the system.
description: 10 pages, 7 figures
Low-dimensional functionality of complex network dynamics: Neuro-sensory integration in the Caenorhabditis elegans connectome
Creators: name: Kunert, James
name: Shlizerman, Eli
name: Kutz, J. Nathan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: We develop a biophysical model of neuro-sensory integration in the model organism Caenorhabditis elegans. Building on recent experimental findings of the neuron conductances and their resolved connectome, we posit the first full dynamic model of the neural voltage excitations that allows for a characterization of input stimuli to behavioral responses. Thus a clear connection between receptory cell inputs to downstream motor-responses is illustrated, showing that robust, low-dimensional bifurcation structures dominate neural pathways of activity. The underlying bifurcation structures discovered, i.e. an induced Hopf bifurcation, are critical in explaining behavioral responses such as swimming and crawling. More broadly, we demonstrate that complex dynamical networks can produce robust functionality from underlying low-dimensional bifurcations.
Relating different quantum generalizations of the conditional Renyi entropy
Creators: name: Tomamichel, Marco
name: Berta, Mario
name: Hayashi, Masahito
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Information Theory (cs.IT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Recently a new quantum generalization of the Renyi divergence and the corresponding conditional Renyi entropies was proposed. Here we report on a surprising relation between conditional Renyi entropies based on this new generalization and conditional Renyi entropies based on the quantum relative Renyi entropy that was used in previous literature. Our result generalizes the well-known duality relation H(A|B) + H(A|C) = 0 of the conditional von Neumann entropy for tripartite pure states to Renyi entropies of two different kinds. As a direct application, we prove a collection of inequalities that relate different conditional Renyi entropies and derive a new entropic uncertainty relation.
description: 10 pages, 1 figure
20240515 MANUSCRIPT Managment of Hyperandrogenism Confounded by Dermatology Biotin Prescription.pdf
Creators: name: Shankar, Srushti
name: Srikanta, Sathyanarayana
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 320208
subject: Endocrinology

description: 20240515 MANUSCRIPT Managment of Hyperandrogenism Confounded by Dermatology Biotin Prescription
Soft beams: when capillarity induces axial compression
Creators: name: Neukirch, Sébastien
name: Antkowiak, Arnaud
name: Marigo, Jean-Jacques
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We study the interaction of an elastic beam with a liquid drop in the case where bending and extensional effects are both present. We use a variational approach to derive equilibrium equations and constitutive relation for the beam. This relation is shown to include a term due to surface energy in addition of the classical Young's modulus term, leading to a modification of Hooke's law. At the triple point where solid, liquid, and vapor phases meet we find that the external force applied on the beam is parallel to the liquid-vapor interface. Moreover, in the case where solid-vapor and solid-liquid interface energies do not depend on the extension state of the beam, we show that the extension in the beam is continuous at the triple point and that the wetting angle satisfy the classical Young-Dupré relation.
Reduced egomotion estimation drift using omnidirectional views
Creators: name: Bastanlar, Yalin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Estimation of camera motion from a given image sequence becomes degraded as the length of the sequence increases. In this letter, this phenomenon is demonstrated and an approach to increase the estimation accuracy is proposed. The proposed method uses an omnidirectional camera in addition to the perspective one and takes advantage of its enlarged view by exploiting the correspondences between the omnidirectional and perspective images. Simulated and real image experiments show that the proposed approach improves the estimation accuracy.
description: Another publisher does not want this article to be shared at arxiv.org in order to publish it
Characterizing unknown systematics in large scale structure surveys
Creators: name: Agarwal, Nishant
name: Ho, Shirley
name: Myers, Adam D.
name: Seo, Hee-Jong
name: Ross, Ashley J.
name: Bahcall, Neta
name: Brinkmann, Jonathan
name: Eisenstein, Daniel J.
name: Muna, Demitri
name: Palanque-Delabrouille, Nathalie
name: Pâris, Isabelle
name: Petitjean, Patrick
name: Schneider, Donald P.
name: Streblyanska, Alina
name: Weaver, Benjamin A.
name: Yèche, Christophe
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Photometric large scale structure (LSS) surveys probe the largest volumes in the Universe, but are inevitably limited by systematic uncertainties. Imperfect photometric calibration leads to biases in our measurements of the density fields of LSS tracers such as galaxies and quasars, and as a result in cosmological parameter estimation. Earlier studies have proposed using cross-correlations between different redshift slices or cross-correlations between different surveys to reduce the effects of such systematics. In this paper we develop a method to characterize unknown systematics. We demonstrate that while we do not have sufficient information to correct for unknown systematics in the data, we can obtain an estimate of their magnitude. We define a parameter to estimate contamination from unknown systematics using cross-correlations between different redshift slices and propose discarding bins in the angular power spectrum that lie outside a certain contamination tolerance level. We show that this method improves estimates of the bias using simulated data and further apply it to photometric luminous red galaxies in the Sloan Digital Sky Survey as a case study.
description: 24 pages, 6 figures; Expanded discussion of results, added figure 2; Version to be published in JCAP
Ad$S_5$ with two boundaries and holography of $\cal{N}=$4 SYM theory
Creators: name: Ghoroku, Kazuo
name: Ishihara, Masafumi
name: Nakamura, Akihiro
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: According to the AdS/CFT correspondence, the ${\cal N}=4$ supersymmetric Yang-Mills (SYM) theory is studied through its gravity dual whose configuration has two boundaries at the opposite sides of the fifth coordinate. At these boundaries, in general, the four dimensional (4D) metrics are different, then we expect different properties for the theory living in two boundaries. It is studied how these two different properties of the theory are obtained from a common 5D bulk manifold in terms of the holographic method. We could show in our case that the two theories on the different boundaries are described by the Ad$S_5$, which is separated into two regions by a domain wall. This domain wall is given by a special point of the fifth coordinate. Some issues of the entanglement entropy related to this bulk configuration are also discussed.
description: 25pages, 4 figures. arXiv admin note: text overlap with arXiv:1212.2304
Projets de développement économique dans les zones rurales au Maroc : Cas de la région Tanger-Tétouan-Al Hoceïma
Creators: name: ELHACHLOUFI, Fatima
name: HAMICHE, Mhamed
Publisher: name: Zenodo
Year: 2024
Subjects: Développement rural ; Croissance économique ; Infrastructures ; Région Tanger-Tétouan-Al Hoceima ; Nord du Maroc.

description: Cet article examine les stratégies de développement rural et les initiatives de croissance économique dans la région de Tanger-Tétouan-Al Hoceima au Maroc. Il met en lumière les investissements significatifs de la région dans les infrastructures, l'éducation, l'agriculture et la technologie visant à promouvoir un développement durable et inclusif. Les principaux projets incluent la création de zones économiques et industrielles, l'achèvement de la Cité Technologique Mohammed VI, et un soutien substantiel aux petites et moyennes entreprises. L'article souligne également les efforts de la région pour améliorer la distribution agricole, renforcer les opportunités éducatives et augmenter les taux d'emploi. Grâce à une analyse bibliométrique utilisant Scopus, l'étude identifie les principales tendances et contributions de la recherche sur le développement rural et l'investissement au Maroc, mettant en avant l'importance des approches interdisciplinaires et des collaborations internationales.
W*-superrigidity for arbitrary actions of central quotients of braid groups
Creators: name: Chifan, Ionut
name: Ioana, Adrian
name: Kida, Yoshikata
Publisher: name: arXiv
Year: 2013
Subjects: subject: Operator Algebras (math.OA)
subject: Dynamical Systems (math.DS)
subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: For any $n\geqslant 4$ let $\tilde B_n=B_n/Z(B_n)$ be the quotient of the braid group $B_n$ through its center. We prove that any free ergodic probability measure preserving (pmp) action $\tilde B_n\curvearrowright (X,μ)$ is W$^*$-superrigid in the following sense: if $L^{\infty}(X)\rtimes\tilde B_n\cong L^{\infty}(Y)\rtimesΛ$, for an arbitrary free ergodic pmp action $Λ\curvearrowright (Y,ν)$, then the actions $\tilde B_n\curvearrowright X,Λ\curvearrowright Y$ are stably (or, virtually) conjugate. Moreover, we prove that the same holds if $\tilde B_n$ is replaced with a finite index subgroup of the direct product $\tilde B_{n_1}\times\cdots\times\tilde B_{n_k}$, for some $n_1,\ldots,n_k\geqslant 4$. The proof uses the dichotomy theorem for normalizers inside crossed products by free groups from \cite{PV11} in combination with the OE superrigidity theorem for actions of mapping class groups from \cite{Ki06}.
description: v2: added a new result (Thm C) which shows that groups that are hyperbolic relative to a finite family of finitely generated, residually finite subgroups, are Cartan-rigid; v3: improved exposition
Towards a Definition of Locality in a Manifoldlike Causal Set
Creators: name: Glaser, Lisa
name: Surya, Sumati
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is a common misconception that spacetime discreteness necessarily implies a violation of local Lorentz invariance. In fact, in the causal set approach to quantum gravity, Lorentz invariance follows from the specific implementation of the discreteness hypothesis. However, this comes at the cost of locality. In particular, it is difficult to define a "local" region in a manifoldlike causal set, i.e., one that corresponds to an approximately flat spacetime region. Following up on suggestions from previous work, we bridge this lacuna by proposing a definition of locality based on the abundance of m-element order-intervals as a function of m in a causal set. We obtain analytic expressions for the expectation value of this function for an ensemble of causal set that faithfully embeds into an Alexandrov interval in d-dimensional Minkowski spacetime and use it to define local regions in a manifoldlike causal set. We use this to argue that evidence of local regions is a necessary condition for manifoldlikeness in a causal set. This in addition provides a new continuum dimension estimator. We perform extensive simulations which support our claims.
description: 35 pages, 17 figures
20240109 FINAL Pembrolizumab-Induced Autoimmune Hypophysitis with _Isolated_ ACTH Deficiency Need for Heightened Awareness and Action Among Medical.pdf
Creators: name: Shankar, Srushti
name: Srikanta, Sathyanarayana
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 320208
subject: Endocrinology

description: 20240109 FINAL Pembrolizumab-Induced Autoimmune Hypophysitis with _Isolated_ ACTH Deficiency Need for Heightened Awareness and Action Among Medical
Promouvoir le tri sélectif des déchets : une approche par la théorie du nudge
Creators: name: Manal Boudih
name: Zoubir Zarrouk
Publisher: name: Zenodo
Year: 2025

description: Face à l’innombrable quantité de déchets ménagers produite chaque année au Maroc, une meilleure gestion des déchets s’impose comme priorité et figure parmi les objectifs du développement durable. Dans ce sens, le tri de déchets constitue une solution pérenne pour la protection de l’environnement. Plusieurs stratégies d’incitation au tri ont été déployées afin de modifier les comportements des personnes : certains pays priorisent la sensibilisation, tandis que d’autres mobilisent des incitations financières et des systèmes de tarification. Ceci dit, de nouvelles pratiques font leur apparition, et encouragent les citoyens à décider d’eux-mêmes la ligne de conduite à suivre. Dans ce cadre, l’approche nudge, s’impose comme l’une des plus prépondérantes ; elle s’est hissée comme levier d’action permettant d’inciter un changement de comportement dans une variété de domaines sans restrictions ni contraintes. Cet article cherche à étudier les apports de la théorie du nudge dans la promotion du tri sélectif des déchets. L’objectif est d’identifier des leviers d’actions qui permettent d’inciter l’adoption d’un comportement responsable à l’égard du tri. Pour ce faire, ce papier analyse dans un premier temps, les théories de changement de comportement, puis s’intéresse au nudge et à ses applications dans différents pays.
NMR study of the Superconducting gap variation near the Mott transition in Cs$_{3}$C$_{60}$
Creators: name: Wzietek, P.
name: Mito, T.
name: Alloul, H.
name: Pontiroli, D.
name: Aramini, M.
name: Riccò, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Former extensive studies of superconductivity in the \textit{A}$_{3}$C$_{60}$ compounds, where \textit{A} is an alkali, have led to consider that Bardeen Cooper Schrieffer (BCS) electron-phonon pairing prevails in those compounds, though the incidence of electronic Coulomb repulsion has been highly debated. The discovery of two isomeric fulleride compounds Cs$_{3}$C$_{60}$ which exhibit a transition with pressure from a Mott insulator (MI) to a superconducting (SC) state clearly re-opens that question. Using pressure ($p$) as a single control parameter of the C$_{60}$ balls lattice spacing, one can now study the progressive evolution of the SC properties when the electronic correlations are increased towards the critical pressure $p_{c}$ of the Mott transition. We have used $^{13}$C and $^{133}$Cs NMR measurements on the cubic phase A15-Cs$_{3}$C$_{60}$ just above $p_{c}=5.0(3)$ kbar, where the SC transition temperature $T_{c}$ displays a dome shape with decreasing cell volume. From the $T$ dependence below $T_{c}$ of the nuclear spin lattice relaxation rate $(T_{1})^{-1}$ we determine the electronic excitations in the SC state, that is $2Δ$, the SC gap value. We find that $2Δ$ increases with decreasing $p$ towards $p_{c}$, where $T_{c}$ decreases on the SC dome, so that $2Δ/k_{B}T_{c}$ increases regularly upon approaching the Mott transition. These results bring clear evidence that the increasing correlations near the Mott transition are not significantly detrimental to SC. They rather suggest that repulsive electron interactions might even reinforce elecron-phonon SC, being then partly responsible for the large $T_{c}$ values, as proposed by theoretical models taking the electronic correlations as a key ingredient.
description: 5 pages, 4 figures, Supplemental Material
title: Wegstationen auf dem Abu Ballas-Trail – Dynastische Fundplätze aus der Western Desert Ägyptens
Creators: name: Schönfeld, Peter
Publisher: name: University Library Heidelberg
Year: 2013

description: Eine Kette von Fundplätzen in der ägyptischen Westwüste ermöglicht die Rekonstruktion eines dynastischen, mit Eseln betriebenen Karawanenweges auf fast 400 km Länge. Die Funde und Befunde auf dem „Abu-Ballas-Trail“ belegen drei intensive Nutzungsphasen vom Ende des Alten Reiches an. Dabei sind unterschiedliche logistische Konzepte zu erkennen, durch welche die
Durchquerung der Wüste möglich wurde.
description: By a chain of sites in Egypt’s Western Desert a dynastic caravan route run by donkeys can be reconstructed in a length of nearly 400 km. The artefacts and features of the Abu Ballas Trail are showing three intensive periods of use, starting with the end of the Old Kingdom. For these periods different logistical concepts can be recognized, which allowed the crossing of the desert.
K semileptonic form factor with HISQ fermions at the physical point
Creators: name: Gámiz, E.
name: Bazavov, A.
name: Bernard, C.
name: Bouchard, C.
name: DeTar, C.
name: Du, D.
name: El-Khadra, A. X.
name: Foley, J.
name: Freeland, E. D.
name: Gottlieb, Steven
name: Heller, U. M.
name: Kim, J.
name: Kronfeld, A. S.
name: Laiho, J.
name: Levkova, L.
name: Mackenzie, P. B.
name: Neil, E. T.
name: Oktay, M. B.
name: Qiu, Si-Wei
name: Simone, J. N.
name: Sugar, R.
name: Toussaint, D.
name: Van de Water, R. S.
name: Zhou, Ran
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present results for the form factor $f_+^{K π}(0)$, needed to extract the CKM matrix element $|V_{us}|$ from experimental data on semileptonic $K$ decays, on the HISQ $N_f=2+1+1$ MILC configurations. The HISQ action is also used for the valence sector. The data set used for our final result includes three different values of the lattice spacing and data at the physical light quark masses. We discuss the error budget and how this calculation improves on our previous determination of $f_+^{K π}(0)$ on the asqtad $N_f=2+1$ MILC configurations.
description: 7 pages, 1 figure, presented at the 31st International Symposium on Lattice Field Theory (Lattice 2013), 29 July - 3 August 2013, Mainz, Germany; v2: minor changes
Whole-Genome Sequencing And Phylogenetic Analysis Of Novel Paramyxoviruses Discovered In Bats From Brazil
Creators: name: Wells, Heather
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Mammalia
Chiroptera
Chordata
Animalia
bats
bat

description: (Uploaded by Plazi for the Bat Literature Project) No abstract provided.
Equations of tropical varieties
Creators: name: Giansiracusa, Jeffrey
name: Giansiracusa, Noah
Publisher: name: arXiv
Year: 2013
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14T05 (primary), 14A20 (secondary)

description: We introduce a scheme-theoretic enrichment of the principal objects of tropical geometry. Using a category of semiring schemes, we construct tropical hypersurfaces as schemes over idempotent semirings such as $\mathbb{T} = (\mathbb{R}\cup \{-\infty\}, \mathrm{max}, +)$ by realizing them as solution sets to explicit systems of tropical equations that are uniquely determined by idempotent module theory. We then define a tropicalization functor that sends closed subschemes of a toric variety over a ring R with non-archimedean valuation to closed subschemes of the corresponding tropical toric variety. Upon passing to the set of $\mathbb{T}$-points this reduces to Kajiwara-Payne's extended tropicalization, and in the case of a projective hypersurface we show that the scheme structure determines the multiplicities attached to the top-dimensional cells. By varying the valuation, these tropicalizations form algebraic families of $\mathbb{T}$-schemes parameterized by a moduli space of valuations on R that we construct. For projective subschemes, the Hilbert polynomial is preserved by tropicalization, regardless of the valuation. We conclude with some examples and a discussion of tropical bases in the scheme-theoretic setting.
description: 36 pages, final version to appear in Duke
Model of the AdS/QFT duality
Creators: name: Głazek, Stanisław D.
name: Trawiński, Arkadiusz P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It is observed and illustrated in a greatly simplified example that the idea of AdS/QFT duality can be considered a special case of the Ehrenfest's correspondence principle between classical and quantum mechanics in the context of relativistic dynamics of fields and renormalization group procedure for effective particles.
description: revtex4-1, 12 pages
Microencapsulation in textile finishing
Creators: name: 1 Desu Surya Tejaswi and 2 Dr. Shefali Massey
Publisher: name: The Science world a Monthly e magazine
Year: 2024

description: There are innumerable advances witnessed in the field of clothing and textile during the past few decades. Finishing is a casual term used for the journey of grey clothes which undergoes plentiful treatments and processes for final acceptance in consumer market. There are some advanced technologies introduced in the field of textile finishing that includes surface enrichment through microencapsulation, functionalization using nano technology and UV protective finishing etc. By witnessing these innovative techniques, it is clear that addition of any desirable properties to any fabric is almost possible. Although there are number of advanced functional technologies the author briefly discusses the microencapsulation technology in the current paper. Microencapsulation has wider scope in almost all relevant arenas of present consumer’s lifestyle. A little light is thrown on various methods of microcapsule formation, method of application and end usage.
title: A orillas del pasado. Sobre la memoria en El entenado de Juan José Saer
Creators: name: Saban, Karen
name: Freudenthal, David
Publisher: name: University Library Heidelberg
Year: 2009

description: Juan Jose Saer’s novel El Entenado (1982) takes place at the imaginary river that shapes the Argentine writer’s work. This article illustrates how the running water exemplifies the moment of forgetting. Yet the river manifests itself, via the narrator, as a lifelong process of remembering and, through written recordings, the memories become part of the cultural memory. Being the only one to survive a tragic accident in which all his companions die, a young Spanish sailor runs ashore and lives with a native tribe from then on. However, his identity is shattered by the long stay with this tribe and him witnessing its later extinction. It is not until he returns to Europe that he learns to write, which enables him to organize his memories from his years as a stranger. The witness, named def-ghi in the ambiguous language of the Indians, realizes, however, that these memories, as well as the reminiscent (indigene) and the remembered (Spanish) language, prove to be unreliable and he is unable to access them. It is through this life, engraved by two incompatible ways of living, that the aging protagonist understands his assigned role as a witness who has to tell posterity about the greatly different and extinct native tribe.
description: HeLix - Dossiers zur romanischen Literaturwissenschaft, Bd. 1 (2009): HeLix, Beginn und Erscheinungsfrequenz: Jahr: 2009, Ausgaben pro Band: 1, Bände pro Jahr: 2