cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Generalized 11D supergravity equations from tri-vector deformations
Creators: name: Bakhmatov, Ilya
name: Çatal-Özer, Aybike
name: Deger, Nihat Sadik
name: Gubarev, Kirill
name: Musaev, Edvard T.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In arXiv:2203.03372 we presented a modification of 11-dimensional supergravity field equations which upon dimensional reduction yields generalized supergravity equations in 10-dimensions. In this paper we provide full technical details of that result which is based on SL(5) exceptional field theory. The equations are obtained by making a non-unimodular tri-vector Yang-Baxter deformation which breaks the initial GL(11) symmetry down to GL(7)xGL(4). We also give some non-trivial solutions to these equations.
description: v3, refs added, minor corrections
Leveraging semantic techniques for social media analysis applied to disaster management
Creators: name: Nagy, Ahmed Said
Publisher: name: IMT Alti Studi Lucca
Year: 2013
Subjects: QA75 Electronic computers. Computer science

description: Social media are nowadays a common tool that people use to communicate. Through social media people express their feelings and exchange information. The information exchanged concerns events, places, objects etc...
and reflects their interests or their psychological state. Micro-blogging has become one of the important tools in social media, where people exchange information
through short messages. The volume of such messages has increased tremendously in the previous years, reaching a couple ofmillionmessages per day on somemicro-blogging
services such as Twitter. The amount of posts per day can be considered a wealth of information potentially useful in case of a disaster. It is interesting to
note that human beings can act as live sensors which collect and disseminate information. It is hard to extract meaningful information from the data due to several
challenges, data incompleteness, huge amounts of data and absence of sound context. In this thesis, we aimed at addressing the challenges by relying on semantic
techniques that can improve the context of data. We applied our techniques to crisis assessment and management (CAM) and disaster management (DM). Using social media
to collect information relevant to a disaster is helpful to aid disaster management efforts. Social media provides an inexpensive means to collect data that can be
used to achieve several crucial tasks in disaster management, for example, situational awareness. The set of challenges to build situational awareness can be summarized
as compilation and visualization of complex information, rapid coordination of private resources, fast collection and dissemination of information during disasters.
The semantic techniques developed used for situational awareness, sentiment analysis, early detection and decision support proved to yield better results than the state of the art techniques.
The game of life on a magnetar crust: from $γ$-ray flares to FRBs
Creators: name: Lander, S. K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: FOS: Physical sciences

description: This paper presents a model to unify the diverse range of magnetar activity, through the building and release of elastic stress from the crust. A cellular automaton drives both local and global yielding of the crust, leading to braiding of coronal loops and energy release. The model behaves like a real magnetar in many ways: giant flares and small bursts both occur, as well as periods of quiescence whose typical duration is either $\lesssim 1$ yr or $\sim 10-30$ yr. The burst energy distribution broadly follows an earthquake-like power law over the energy range $10^{40}-10^{45}\,{\rm erg}$. The local nature of coronal loops allows for the possibility of high-energy and fast radio bursts from the same magnetar. Within this paradigm, magnetar observations can be used to constrain the poorly-understood mechanical properties of the neutron-star crust.
description: 6 pages, 5 figures. Matches version now published in ApJ Letters. Animations related to figure 3 available here: sklander.wordpress.com/animations/
Mitochondrial responses to anoxia exposure in red eared sliders (Trachemys scripta)
Creators: name: Gomez, Crisostomo Roberto
Publisher: name: University of British Columbia
Year: 2016

description: The freshwater turtle, Trachemys scripta is considered one of the most anoxia-tolerant vertebrates because of its ability to survive months at cold temperatures in the complete absence of oxygen. When deprived oxygen, mitochondria from anoxia intolerant organisms become one of the largest cellular energy consumers because of the reverse functioning of the F₁F₀-ATPase (complex V), which hydrolyzes ATP to pump protons out of the mitochondrial matrix, quickly depleting cellular ATP and leading to cellular death. T. scripta has previously shown to inhibit complex V in response to anoxia exposure, but the regulatory mechanism is still unknown. The goal of this thesis was to explore the mitochondrial response to anoxia in T. scripta. My first objective was to deduce the mechanism responsible for the severe downregulation of Complex V. In heart, brain, and liver tissue from anoxic exposed turtles, complex V activity was significantly reduced to more than 80% compared with normoxic controls. Employing a proteomics approach, I determined that three subunits of complex V (ATP5A1, ATP5F1, and MT-ATP5J), all associated with the peripheral stalk, decreased in protein expression in response to anoxia. Increasing assay buffer pH, in an attempt to strip Inhibitory Factor-1 (IF₁) from complex V did not increase enzyme activity of normoxic or anoxic exposed samples, but decreasing pH < 7.5 decreased activity and at pH 6.0 there was no significant difference in activity between normoxic-and anoxic-exposed samples. Stimulating endogenous phosphatases slightly reduced activity in normoxic samples but had no effect on anoxic samples. Nitric oxide did not have a significant effect on complex V activity as previously seen in mice. The second objective of this thesis was to characterize the changes in proteins involved in mitochondrial function during anoxia. Proteomic analysis revealed differential expression of numerous enzymes involved with the electron transport system (ETS), the tricarboxyl acid (TCA) cycle, as well as lipid and amino acid metabolism. Overall, results from this thesis demonstrate that mitochondria from turtles alter protein expression of numerous proteins in response to anoxia and that reduced complex V activity is likely related to decreases in the expression of specific complex V subunits.
title: MRI in a patient with unilateral parasternal pain: a case of Tietze syndrome
Creators: name: Valgaeren, Bjorn
Publisher: name: EURORAD
Year: 2022
Subjects: subject: Musculoskeletal system
subject: Musculoskeletal joint
subject: Thorax
subject: MR
subject: Diagnostic procedure
subject: Arthritides
subject: Inflammation
subject: Clinical Cases

description: Clinical History: A 28-year-old female presents herself at the radiology department for magnetic resonance imaging (MRI) of the anterior chest wall for evaluation of spontaneous non-traumatic left parasternal pain and mild unilateral swelling for three months.

description: 28 years, female
Unique Observations of a Geomagnetic SI^+ -- SI^- Pair: Solar Sources and Associated Solar Wind Fluctuations
Creators: name: Rastogi, R. G.
name: Janardhan, P.
name: Ahmed, K.
name: Das, A. C.
name: Bisoi, Susanta Kumar
Publisher: name: arXiv
Year: 2010
Subjects: subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The paper describes the occurrence of a pair of oppositely directed sudden impulses (SI), in the geomagnetic field ($Δ$X), at ground stations, called SI${^{+}}$ -- SI${^{-}}$ pairs, that occurred between 1835 UT and 2300 UT on 23 April 1998. The SI${^{+}}$ -- SI${^{-}}$ pair, was closely correlated with corresponding variations in the solar wind density, while solar wind velocity and the southward component of the interplanetary magnetic field (Bz) did not show any correspondence. Further, this event had no source on the visible solar disk. However, a rear-side partial halo coronal mass ejection (CME) and an M1.4 class solar flare behind the west limb, took place on 20 April 1998, the date corresponding to the traceback location of the solar wind flows. This event presents empirical evidence, which to our knowledge, is the best convincing evidence for the association of specific solar events to the observations of an SI${^{+}}$ -- SI${^{-}}$ pair. In addition, it shows that it is possible for a rear side solar flare to propagate a shock towards the earth.
description: The paper has just been accepted in the Journal of Geophysical Research (Space Physics) on 20 September 2010. It is 17 pages with 4 figures
Thermal annealing effects on Graphene/n-Si Schottky junction Solar cell: Removal of PMMA residues
Creators: name: Ono, Yuzuki
name: Im, Hojun
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Thermal annealing is one of most effective way to improve the efficiency of graphene/n-Si Schottky junction solar cell. Here, its underlying mechanism has been investigated by comparative studies in terms of the removal of polymethyl methacrylate (PMMA) residues, using the J-V characteristics, the transient photocurrent and photovoltage measurements. Experimental results have revealed that there are trap states which are originated from the PMMA residues and cause the large photocurrent leakage as the intensity of the incident light increases. It is also found that the PMMA residues accelerate deterioration and rapidly invalidate hole doping effects. Such undesirable PMMA residues were effectively removed by the thermal annealing treatments, serving to reduce the photocurrent leakage and to increase the stability.
description: 18 pages, 7 figures, 5 tables
Beating the Productivity Checker Using Embedded Languages
Creators: name: Danielsson, Nils Anders
Publisher: name: arXiv
Year: 2010
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: Some total languages, like Agda and Coq, allow the use of guarded corecursion to construct infinite values and proofs. Guarded corecursion is a form of recursion in which arbitrary recursive calls are allowed, as long as they are guarded by a coinductive constructor. Guardedness ensures that programs are productive, i.e. that every finite prefix of an infinite value can be computed in finite time. However, many productive programs are not guarded, and it can be nontrivial to put them in guarded form. This paper gives a method for turning a productive program into a guarded program. The method amounts to defining a problem-specific language as a data type, writing the program in the problem-specific language, and writing a guarded interpreter for this language.
description: In Proceedings PAR 2010, arXiv:1012.4555
Artificial Intelligence in Material Engineering: A review on applications of AI in Material Engineering
Creators: name: Goswami, Lipichanda
name: Deka, Manoj
name: Roy, Mohendra
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: The role of artificial intelligence (AI) in material science and engineering (MSE) is becoming increasingly important as AI technology advances. The development of high-performance computing has made it possible to test deep learning (DL) models with significant parameters, providing an opportunity to overcome the limitation of traditional computational methods, such as density functional theory (DFT), in property prediction. Machine learning (ML)-based methods are faster and more accurate than DFT-based methods. Furthermore, the generative adversarial networks (GANs) have facilitated the generation of chemical compositions of inorganic materials without using crystal structure information. These developments have significantly impacted material engineering (ME) and research. Some of the latest developments in AI in ME herein are reviewed. First, the development of AI in the critical areas of ME, such as in material processing, the study of structure and material property, and measuring the performance of materials in various aspects, is discussed. Then, the significant methods of AI and their uses in MSE, such as graph neural network, generative models, transfer of learning, etc. are discussed. The use of AI to analyze the results from existing analytical instruments is also discussed. Finally, AI's advantages, disadvantages, and future in ME are discussed.
description: V3
Additional file 3 of Improving lifestyles sustainability through community gardening: results and lessons learnt from the JArDinS quasi-experimental study
Creators: name: Tharrey, Marion
name: Ashby Sachs
name: Perignon, Marlène
name: Simon, Chantal
name: Mejean, Caroline
name: Litt, Jill
name: Darmon, Nicole
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Science Policy
subject: Sociology
subject: FOS: Sociology
subject: Cancer

description: Additional file 3. Group differences and time effect of lifestyles components among active gardeners (≥ 1 visit per month throughout the year, n = 37) and paired non-gardeners.
Local complementation and the extension of bilinear mappings
Creators: name: Castillo, J. M. F.
name: Defant, A.
name: García, R.
name: Pérez-García, D.
name: Suárez, J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: We study different aspects of the connections between local theory of Banach spaces and the problem of the extension of bilinear forms from subspaces of Banach spaces. Among other results, we prove that if $X$ is not a Hilbert space then one may find a subspace of $X$ for which there is no Aron-Berner extension. We also obtain that the extension of bilinear forms from all the subspaces of a given $X$ forces such $X$ to contain no uniform copies of $\ell_p^n$ for $p\in[1,2)$. In particular, $X$ must have type $2-ε$ for every $ε>0$. Also, we show that the bilinear version of the Lindenstrauss-Pełczyński and Johnson-Zippin theorems fail. We will then consider the notion of locally $α$-complemented subspace for a reasonable tensor norm $α$, and study the connections between $α$-local complementation and the extendability of $α^*$ -integral operators.
description: to appear in Mathematical Proceedings of the Cambridge Philosophical Society
Magnetic Properties of Ab initio Model for Iron-Based Superconductors LaFeAsO
Creators: name: Misawa, Takahiro
name: Nakamura, Kazuma
name: Imada, Masatoshi
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: By using variational Monte Carlo method, we examine an effective low-energy model for LaFeAsO derived from an ab initio downfolding scheme. We show that quantum and many-body fluctuations near a quantum critical point largely reduce the antiferromagnetic (AF) ordered moment and the model not only quantitatively reproduces the small ordered moment in LaFeAsO, but also explains the diverse dependence on LaFePO, BaFe2As2 and FeTe. We also find that LaFeAsO is under large orbital fluctuations, sandwiched by the AF Mott insulator and weakly correlated metals. The orbital fluctuations and Dirac-cone dispersion hold keys for the diverse magnetic properties.
description: 4 pages, 4 figures
General Recursion and Formal Topology
Creators: name: Coen, Claudio Sacerdoti
name: Valentini, Silvio
Publisher: name: arXiv
Year: 2010
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: It is well known that general recursion cannot be expressed within Martin-Loef's type theory and various approaches have been proposed to overcome this problem still maintaining the termination of the computation of the typable terms. In this work we propose a new approach to this problem based on the use of inductively generated formal topologies.
description: In Proceedings PAR 2010, arXiv:1012.4555
title: A rare unreported case of abnormal craniocervical segmentation and its clinical implications.
Creators: name: Chiavacci, Iacopo
Publisher: name: EURORAD
Year: 2022
Subjects: subject: Musculoskeletal system
subject: Anatomy
subject: Musculoskeletal bone
subject: Musculoskeletal joint
subject: Musculoskeletal spine
subject: Musculoskeletal system
subject: CT
subject: Musculoskeletal system
subject: Congenital
subject: Anatomy and Functional Imaging

description: Clinical History: The patient was a 43-year-old male, involved in a motorcycle accident at 80 mph. He was complaining of sternal, left shoulder and cervico-thoracic spinal pain. A full-body trauma CT was performed, including multiplanar soft tissues and bone window reconstructions.

description: 43 years, male
Hawking's radiation in non-stationary rotating de Sitter background
Creators: name: Ibohal, Ng.
name: Ibungochouba, T.
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Hawking's radiation effect of Klein-Gordon scalar field, Dirac particles and Maxwell's electromagnetic field in the non-stationary rotating de Sitter cosmological space-time is investigated by using a method of generalized tortoise co-ordinates transformation. The locations and the temperatures of the cosmological horizons of the non-stationary rotating de Sitter model are derived. It is found that the locations and the temperatures of the rotating cosmological model depend not only on the time but also on the angle. The stress-energy regularization techniques are applied to the two dimensional analog of the de Sitter metrics and the calculated stress-energy tensor contains the thermal radiation effect.
description: 13 pages, LaTex format, accepted for publication Astrophysics and Space Science, Springer; Journal ID: 10509, Article ID: 606, Date 2011-01-15
Outflow dynamics of dust-driven wind models and implications for cool envelopes of PNe
Creators: name: Verbena, J. L.
name: Schröder, K. -P.
name: Wachter, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The density profiles of cool envelopes of young Planetary Nebulae (PNe) are reminiscent of the final AGB outflow history of the central star, so far as these have not yet been transformed by the hot wind and radiation of the central star. Obviously, the evolution of the mass loss rate of that dust-driven, cool wind of the former giant in its final AGB stages must have shaped these envelopes to some extent. Less clear is the impact of changes in the outflow velocity. Certainly, larger and fast changes would lead to significant complications in the reconstruction of the mass-loss history from a cool envelope's density profile. Here, we analyse the outflow velocity v_{\rm exp} in a consistent set of over 50 carbon-rich, dust-driven and well "saturated" wind models, and how it depends on basic stellar parameters. We find a relation of the kind of v_{\rm exp} \propto (L/M)^{0.6}. By contrast to the vast changes of the mass-loss rate in the final outflow phase, this relation suggest only very modest variations in the wind velocity, even during a thermal pulse. Hence, we conclude that the density profiles of cool envelopes around young PNe should indeed compare relatively well with their recent mass-loss history, when diluted plainly by the equation of continuity.
description: 6 pages, 6 figures, 1 table
Termination Casts: A Flexible Approach to Termination with General Recursion
Creators: name: Stump, Aaron
name: Sjöberg, Vilhelm
name: Weirich, Stephanie
Publisher: name: arXiv
Year: 2010
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences
subject: D.3.1

description: This paper proposes a type-and-effect system called Teqt, which distinguishes terminating terms and total functions from possibly diverging terms and partial functions, for a lambda calculus with general recursion and equality types. The central idea is to include a primitive type-form "Terminates t", expressing that term t is terminating; and then allow terms t to be coerced from possibly diverging to total, using a proof of Terminates t. We call such coercions termination casts, and show how to implement terminating recursion using them. For the meta-theory of the system, we describe a translation from Teqt to a logical theory of termination for general recursive, simply typed functions. Every typing judgment of Teqt is translated to a theorem expressing the appropriate termination property of the computational part of the Teqt term.
description: In Proceedings PAR 2010, arXiv:1012.4555
Observation of gapless nodal-line states in NdSbTe
Creators: name: Regmi, Sabin
name: Smith, Robert
name: Sakhya, Anup Pradhan
name: Sprague, Milo
name: Mondal, Mazharul Islam
name: Elius, Iftakhar Bin
name: Valadez, Nathan
name: Ptok, Andrzej
name: Kaczorowski, Dariusz
name: Neupane, Madhab
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Lanthanide (Ln) based systems in the ZrSiS-type nodal-line semimetals have been subjects of research investigations as grounds for studying the interplay of topology with possible magnetic ordering and electronic correlations that may originate from the presence of Ln 4f electrons. In this study, we carried out a thorough study of a LnSbTe system - NdSbTe - by using angle-resolved photoemission spectroscopy along with first-principles calculations and thermodynamic measurements. We experimentally detect the presence of multiple gapless nodal-line states, which is well supported by first-principles calculations. A dispersive and an almost non-dispersive nodal-line exist along the bulk X-R direction. Another nodal-line is present well below the Fermi level across the G- M direction, which is formed by bands with high Fermi velocity that seem to be sensitive to light polarization. Our study provides an insight into the electronic structure of a new LnSbTe material system that will aid towards understanding the connection of Ln elements with topological electronic structure in these systems.
description: 34 pages, 12 figures; Supplemental Material included
Additional file 1 of Improving lifestyles sustainability through community gardening: results and lessons learnt from the JArDinS quasi-experimental study
Creators: name: Tharrey, Marion
name: Ashby Sachs
name: Perignon, Marlène
name: Simon, Chantal
name: Mejean, Caroline
name: Litt, Jill
name: Darmon, Nicole
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Science Policy
subject: Sociology
subject: FOS: Sociology
subject: Cancer

description: Additional file 1. Data analyses of food supply diary and accelerometer.
Maximum Entropy Approach for the Prediction of Urban Mobility Patterns
Creators: name: Daniotti, Simone
name: Monechi, Bernardo
name: Ubaldi, Enrico
Publisher: name: arXiv
Year: 2022
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: The science of cities is a relatively new and interdisciplinary topic. It borrows techniques from agent-based modeling, stochastic processes, and partial differential equations. However, how the cities rise and fall, how they evolve, and the mechanisms responsible for these phenomena are still open questions. Scientists have only recently started to develop forecasting tools, despite their importance in urban planning, transportation planning, and epidemic spreading modeling. Here, we build a fully interpretable statistical model that, incorporating only the minimum number of constraints, can predict different phenomena arising in the city. Using data on the movements of car-sharing vehicles in different Italian cities, we infer a model using the Maximum Entropy (MaxEnt) principle. With it, we describe the activity in different city zones and apply it to activity forecasting and anomaly detection (e.g., strikes, and bad weather conditions). We compare our method with different models explicitly made for forecasting: SARIMA models and Deep Learning Models. We find that MaxEnt models are highly predictive, outperforming SARIMAs and having similar results as a Neural Network. These results show how relevant statistical inference can be in building a robust and general model describing urban systems phenomena. This article identifies the significant observables for processes happening in the city, with the perspective of a deeper understanding of the fundamental forces driving its dynamics.
description: 14 pages, 7 figures
Is Eta Carinae a fast rotator, and how much does the companion influence the inner wind structure?
Creators: name: Groh, Jose H.
name: Madura, Thomas I.
name: Owocki, Stanley P.
name: Hillier, D. John
name: Weigelt, Gerd
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We analyze interferometric measurements of the Luminous Blue Variable Eta Carinae with the goal of constraining the rotational velocity of the primary star and probing the influence of the companion. Using 2-D radiative transfer models of latitude-dependent stellar winds, we find that prolate wind models with a ratio of the rotational velocity (vrot) to the critical velocity (vcrit) of W=0.77-0.92, inclination angle of i=60-90 degrees, and position angle PA=108-142 degrees reproduce simultaneously K-band continuum visibilities from VLTI/VINCI and closure phase measurements from VLTI/AMBER. Interestingly, oblate models with W=0.73-0.90 and i=80-90 degrees produce similar fits to the interferometric data, but require PA=210-230 degrees. Therefore, both prolate and oblate models suggest that the rotation axis of the primary star is not aligned with the Homunculus polar axis. We also compute radiative transfer models of the primary star allowing for the presence of a cavity and dense wind-wind interaction region created by the companion star. We find that the wind-wind interaction has a significant effect on the K-band image mainly via free-free emission from the compressed walls and, for reasonable model parameters, can reproduce the VLTI/VINCI visibilities taken at phase 0.92-0.93. We conclude that the density structure of the primary wind can be sufficiently disturbed by the companion, thus mimicking the effects of fast rotation in the interferometric observables. Therefore, fast rotation may not be the only explanation for the interferometric observations. Intense temporal monitoring and 3-D modeling are needed to resolve these issues.
description: 6 pages, 4 color figures, accepted for publication in ApJ Letters
Codazzi tensors and their space-times, and Cotton gravity
Creators: name: Mantica, Carlo Alberto
name: Molinari, Luca Guido
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 53B30, 83D05 (Primary) 53B50 (Secondary)

description: We study the geometric properties of certain Codazzi tensors for their own sake, and for their appearance in the recent theory of Cotton gravity. We prove that a perfect-fluid tensor is Codazzi if and only if the metric is a generalized Stephani universe. A trace condition restricts it to a warped space-time, as proven by Merton and Derdzinski. We also give necessary and sufficient conditions for a space-time to host a current-flow Codazzi tensor. In particular, we study the static and spherically symmetric cases, which include the Nariai and Bertotti-Robinson metrics. The latter are a special case of Yang Pure space-times, together with spatially flat FRW space-times with constant curvature scalar. We apply these results to the recent Cotton gravity by Harada. The equations have the freedom of choosing a Codazzi tensor, that constrains the space-time where the theory is staged. The tensor, chosen in forms significative for physics, implies the form of the Ricci tensor, and the two specify the energy-momentum tensor, which is the source in Cotton gravity for the chosen metric. For example, the Stephani, Nariai and Bertotti-Robinson space-times solve Cotton gravity with physically sensible energy-momentum tensors. Finally, we discuss Cotton gravity in De Sitter space-times.
description: 19 pages, no figures. We added a discussion of Yang Pure spaces, with references. Eq.45 and the Ricci tensor in the proof of Prop.2.3 (this version) are now correct
Bright points in the quiet Sun as observed in the visible and near-UV by the balloon-borne observatory Sunrise
Creators: name: Riethmueller, T. L.
name: Solanki, S. K.
name: Pillet, V. Martínez
name: Hirzberger, J.
name: Feller, A.
name: Bonet, J. A.
name: González, N. Bello
name: Franz, M.
name: Schüssler, M.
name: Barthol, P.
name: Berkefeld, T.
name: Iniesta, J. C. del Toro
name: Domingo, V.
name: Gandorfer, A.
name: Knölker, M.
name: Schmidt, W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Bright points (BPs) are manifestations of small magnetic elements in the solar photosphere. Their brightness contrast not only gives insight into the thermal state of the photosphere (and chromosphere) in magnetic elements, but also plays an important role in modulating the solar total and spectral irradiance. Here we report on simultaneous high-resolution imaging and spectropolarimetric observations of BPs using Sunrise balloon-borne observatory data of the quiet Sun at disk center. BP contrasts have been measured between 214 nm and 525 nm, including the first measurements at wavelengths below 388 nm. The histograms of the BP peak brightness show a clear trend toward broader contrast distributions and higher mean contrasts at shorter wavelengths. At 214 nm we observe a peak brightness of up to five times the mean quiet-Sun value, the highest BP contrast so far observed. All BPs are associated with a magnetic signal, although in a number of cases it is surprisingly weak. Most of the BPs show only weak downflows, the mean value being 240 m/s, but some display strong down- or upflows reaching a few km/s.
description: Accepted for publication in The Astrophysical Journal Letters on September 08 2010
Proton and antiproton modulation in the heliosphere for different solar conditions and AMS-02 measurements prediction
Creators: name: Bobik, P.
name: Boschini, M. J.
name: Consolandi, C.
name: Della Torre, S.
name: Gervasi, M.
name: Grandi, D.
name: Kudela, K.
name: Pensotti, S.
name: Rancoita, P. G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Galactic Cosmic Rays (GCRs) are mainly protons confined in the galactic magnetic field to form an isotropic flux inside the galaxy. Before reaching the Earth orbit they enter the Heliosphere and undergo diffusion, convection, magnetic drift and adiabatic energy loss. The result is a reduction of particles flux at low energy (below 10 GeV), called solar modulation. We realized a quasi time-dependent 2D Stochastic Simulation of Solar Modulation that is able to reproduce CR spectra once known the Local Interstellar Spectrum (LIS). We were able to estimate the different behaviors associated to the polarity dependence of the Heliospheric modulation for particles as well as for antiparticles. We show a good agreement with the antiproton/proton ratio measured by AMS-01, Pamela, BESS, Heat and Caprice and we performed a prediction for the AMS-02 Experiment.
Additional file 4 of Improving lifestyles sustainability through community gardening: results and lessons learnt from the JArDinS quasi-experimental study
Creators: name: Tharrey, Marion
name: Ashby Sachs
name: Perignon, Marlène
name: Simon, Chantal
name: Mejean, Caroline
name: Litt, Jill
name: Darmon, Nicole
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Science Policy
subject: Sociology
subject: FOS: Sociology
subject: Cancer

description: Additional file 4. Group differences and time effect of lifestyles components of gardeners who did not dropped out the garden during the year (n = 50) and paired non-gardeners.
L^p and Schauder estimates for nonvariational operators structured on Hörmander vector fields with drift
Creators: name: Bramanti, Marco
name: Zhu, Maochun
Publisher: name: arXiv
Year: 2011
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We consider linear second order nonvariational partial differential operators of the kind a_{ij}X_{i}X_{j}+X_{0}, on a bounded domain of R^{n}, where the X_{i}'s (i=0,1,2,...,q, n>q+1) are real smooth vector fields satisfying Hörmander's condition and a_{ij} (i,j=1,2,...,q) are real valued, bounded measurable functions, such that the matrix {a_{ij}} is symmetric and uniformly positive. We prove that if the coefficients a_{ij} are Hölder continuous with respect to the distance induced by the vector fields, then local Schauder estimates on X_{i}X_{j}u, X_{0}u hold; if the coefficients belong to the space VMO with respect to the distance induced by the vector fields, then local L^{p} estimates on X_{i}_{j}u, X_{0}u hold. The main novelty of the result is the presence of the drift term X_{0}, so that our class of operators covers, for instance, Kolmogorov-Fokker-Planck operators.
Menippean satire in Geoffrey Chaucer's Troilus and Criseyde
Creators: name: Volk, Richard
Publisher: name: University of British Columbia
Year: 2016

description: There is little consensus as how to read Geoffrey Chaucer’s Troilus and Criseyde. Critics such as C.S. Lewis, D.W. Robertson, and Elizabeth Salter, for example, have come to very different conclusions regarding the Troilus’s emphasis on love. Such irreconcilable views open the text to a reconsideration. I reexamine love and its binary, war, in the Troilus through the lens of Menippean satire to offer a more inclusive reading of the text while admitting its exclusive tendencies. Here menippea attempts to ameliorate previous readings and to shed light on the degree of play that Chaucer employs in interpreting earlier narratives of Troilus and Criseyde through innovation and contemporizing the text. The paper begins with a conspectus on Menippean satire and the Troilus. I draw from critics of menippea such as Bakhtin, Northrop Frye, Erik and Marshall McLuhan, and Anne Payne to lay the groundwork of menippea as applied to the Troilus. I invoke the McLuhans’ work on the tetrad to understand better how Menippean satire is a literary tool to provoke the role and limits of the reader. Concerning war, this essay explores how the matter of Troy was employed in the 14th century to show how the text speaks to events of the day, and how the character Troilus represents not only a knight of courtly love, but a mercenary initially bereft of gentilesse. Concerning love, this thesis explores the limits of love in the text by juxtaposing Andreas Capellanus’s Rules of Courtly Love to illustrate how Troilus and Criseyde’s love transgresses the literary conceit of courtly love to point to the greater phenomenon of fin’ amors. This paper contends that of all the ways to consider Chaucer’s Troilus, the most apt and productive is a Menippean satirical reading.
Model and Data Transfer for Cross-Lingual Sequence Labelling in Zero-Resource Settings
Creators: name: García-Ferrero, Iker
name: Agerri, Rodrigo
name: Rigau, German
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Zero-resource cross-lingual transfer approaches aim to apply supervised models from a source language to unlabelled target languages. In this paper we perform an in-depth study of the two main techniques employed so far for cross-lingual zero-resource sequence labelling, based either on data or model transfer. Although previous research has proposed translation and annotation projection (data-based cross-lingual transfer) as an effective technique for cross-lingual sequence labelling, in this paper we experimentally demonstrate that high capacity multilingual language models applied in a zero-shot (model-based cross-lingual transfer) setting consistently outperform data-based cross-lingual transfer approaches. A detailed analysis of our results suggests that this might be due to important differences in language use. More specifically, machine translation often generates a textual signal which is different to what the models are exposed to when using gold standard data, which affects both the fine-tuning and evaluation processes. Our results also indicate that data-based cross-lingual transfer approaches remain a competitive option when high-capacity multilingual language models are not available.
description: Findings of the Association for Computational Linguistics: EMNLP 2022
title: Etude phytochimique et pharmacologique de plantes de Nouvelle-Calédonie
            à potentialités anti-dengue
Creators: name: Coulerie, Paul
Publisher: name: Université de la Nouvelle-Calédonie
Year: 2012
Subjects: subject: Chimie des substances naturelles
subject: Ethnopharmacologie -- Nouvelle-Calédonie -- Thèses et écrits académiques
subject: Plantes médicinales -- Nouvelle-Calédonie -- Thèses et écrits académiques
subject: Virus de la dengue -- Phytothérapie -- Nouvelle-Calédonie Thèses et écrits académiques
subject: Ethnopharmacology
subject: Medicinal plants
subject: Dengue viruses
subject: Materia medica, Vegetable
subject: New Caledonia

description: La flore de Nouvelle-Calédonie, de part sa richesse
            et son originalité, est une source potentielle de nouveaux médicaments. En portant une
            attention particulière aux plantes de la médecine traditionnelle, 48 plantes ont été
            récoltées et 91 extraits bruts testés pour différentes activités biologiques. 10 Plantes
            nous ont fourni des extraits inhibant la croissance de microorganismes pathogènes de
            l'homme et 15 plantes sont à l'origine d'extraits cytotoxiques. ces plantes pourraient
            respectivement renfermer de nouveaux antibiotiques et anticancéreux. 17 plantes
            résentent de fortes potentialités pour la recherche de composés antiviraux, actifs
            contre le virus de la dengue. Le virus de la dengue (DV), contre lequel il n'existe
            aucun traitement aujourd'hui, touche plus de 50 millions de personnes chaque année. Afin
            de trouver des inhibiteurs de ce virus nous avons ciblé la protéine DV-NS5, une enzyme
            essentielle à la réplication et spécifique du DV. Le fractionnement bioguidé des
            extraits actifs de trois plantes (Myrtopsis corymbosa Guill., Dacrydium balansae Brongn.
            et Gris., Carpolepsis laurifolia J.W Dawson) nous a alors permis d'isoler divers
            composés appartenant aux familles des alcaloïdes, coumarines, flavonoïdes, stérols et
            terpènes. parmis ceux-ci, les flavonoïdes sont les plus puissants inhibiteurs de la
            DV-NS5 : certains biflavonoïdes, tels que la podocarpusflavone A (40), ont ainsi montré
            une concentration inhibant 50% de l'activité de la polymérase virale (CL50) inférieure à
            1µm, sans montrer de cytotoxicité. L'activité de ces composés devra désormais être
            évaluée contre des cellules infectées par le virus de la dengue.
Testing the Scalar Triplet Solution to CDF's Fat $W$ Problem at the LHC
Creators: name: Butterworth, Jon
name: Heeck, Julian
name: Jeon, Si Hyun
name: Mattelaer, Olivier
name: Ruiz, Richard
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The Type II Seesaw model remains a popular and viable explanation of neutrino masses and mixing angles. By hypothesizing the existence of a scalar that is a triplet under the weak gauge interaction, the model predicts strong correlations among neutrino oscillation parameters, signals at lepton flavor experiments, and collider observables at high energies. We investigate reports that the Type II Seesaw can naturally accommodate recent measurements by the CDF collaboration, which finds the mass of the $W$ boson to be significantly larger than allowed by electroweak precision data, while simultaneously evading constraints from direct searches. Experimental scrutiny of this parameter space in the Type II Seesaw has long been evaded since it is not characterized by ``golden channels'' at colliders but instead by cascade decays, moderate mass splittings, and many soft final states. In this work, we test this parameter space against publicly released measurements made at the Large Hadron Collider. By employing a newly developed tool chain combining MadGraph5\_aMC@NLO and Contur, we find that most of the favored space for this discrepancy is already excluded by measurements of Standard Model final states. We give suggestions for further exploration at Run III of the LHC, which is now underway.
description: 8 pages (incl. refs.), 3 figures; minor clarifications, matches published version
Additional file 1 of Measurement site of inferior vena cava diameter affects the accuracy with which fluid responsiveness can be predicted in spontaneously breathing patients: a post hoc analysis of two prospective cohorts
Creators: name: Caplan, Morgan
name: Durand, Arthur
name: Bortolotti, Perrine
name: Colling, Delphine
name: Goutay, Julien
name: Duburcq, Thibault
name: Drumez, Elodie
name: Rouze, Anahita
name: Nseir, Saad
name: Howsam, Michael
name: Onimus, Thierry
name: Favory, Raphael
name: Preau, Sebastien
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. Accuracy with which the collapsibility index of the inferior vena cava (cIVC) predicts fluid responsiveness.
STUDY OF VARIOUS BASALT AND READY-MADE PRODUCTS THAT CAN BE OBTAINED FROM BASALT IN THE DIFFERENT CONTINENTS OF THE WORLD.
Creators: name: Aripova, M.X.
name: Ruzmatov, E.I.
Publisher: name: Zenodo
Year: 2023

description: About 70% of the Earth's surface is made up of basalts, which are igneous rocks formed when magma on the surface cools and solidifies. Rock-melting products are highly marketable and can be thought of as the forerunners of glass-ceramic technology. These materials are guaranteed since they can be used to convert inexpensive natural raw materials into goods with superior thermal, chemical, and mechanical qualities. In this thesis, the composition of basalt in several regions is analyzed. Meanwhile, the data about various types of ready-made products which can be obtained from basalt is given.
Filtering crosstalk from bath non-Markovianity via spacetime classical shadows
Creators: name: White, Gregory A. L.
name: Modi, Kavan
name: Hill, Charles D.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: From an open system perspective non-Markovian effects due to a nearby bath or neighbouring qubits are dynamically equivalent. However, there is a conceptual distinction to account for: neighbouring qubits may be controlled. We combine recent advances in non-Markovian quantum process tomography with the framework of classical shadows to characterise spatiotemporal quantum correlations. Observables here constitute operations applied to the system, where the free operation is the maximally depolarising channel. Using this as a causal break, we systematically erase causal pathways to narrow down the progenitors of temporal correlations. We show that one application of this is to filter out the effects of crosstalk and probe only non-Markovianity from an inaccessible bath. It also provides a lens on spatiotemporally spreading correlated noise throughout a lattice from common environments. We demonstrate both examples on synthetic data. Owing to the scaling of classical shadows, we can erase arbitrarily many neighbouring qubits at no extra cost. Our procedure is thus efficient and amenable to systems even with all-to-all interactions.
description: 5 pages, 4 figures
Optical identification of the transient supersoft X-ray source RX J0527.8-6954, in the LMC
Creators: name: Oliveira, A. S.
name: Steiner, J. E.
name: Ricci, T. V.
name: Menezes, R. B.
name: Borges, B. W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. Close binary supersoft X-ray sources (CBSS) are binary systems that contain a white dwarf with stable nuclear burning on its surface. These sources, first discovered in the Magellanic Clouds, have high accretion rates and near-Eddington luminosities (10^37 - 10^38 erg/s) with high temperatures (T = 2 - 7 x 10^5 K). Aims. The total number of known objects in the MC is still small and, in our galaxy, even smaller. We observed the field of the unidentified transient supersoft X-ray source RX J0527.8-6954 in order to identify its optical counterpart. Methods. The observation was made with the IFU-GMOS on the Gemini South telescope with the purpose of identifying stars with possible He II or Balmer emission or else of observing nebular extended jets or ionization cones, features that may be expected in CBSS. Results. The X-ray source is identified with a B5e V star that is associated with subarcsecond extended Halpha emission, possibly bipolar. Conclusions. If the primary star is a white dwarf, as suggested by the supersoft X-ray spectrum, the expected orbital period exceeds 21 h; therefore, we believe that the 9.4 h period found so far is not associated to this system.
description: 4 pages, 4 figures, A&A, in press