cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Moduli Stabilization in Non-Geometric Backgrounds
Creators: name: Becker, Katrin
name: Becker, Melanie
name: Vafa, Cumrun
name: Walcher, Johannes
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Type II orientifolds based on Landau-Ginzburg models are used to describe moduli stabilization for flux compactifications of type II theories from the world-sheet CFT point of view. We show that for certain types of type IIB orientifolds which have no Kahler moduli and are therefore intrinsically non-geometric, all moduli can be explicitly stabilized in terms of fluxes. The resulting four-dimensional theories can describe Minkowski as well as Anti-de-Sitter vacua. This construction provides the first string vacuum with all moduli frozen and leading to a 4D Minkowski background.
description: 61 pages, 1 figure
Social dilemmas in off-lattice populations
Creators: name: de Oliveira, B. F.
name: Szolnoki, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Exploring the possible consequences of spatial reciprocity on the evolution of cooperation is an intensively studied research avenue. Related works assumed a certain interaction graph of competing players and studied how particular topologies may influence the dynamical behavior. In this paper we apply a numerically more demanding off-lattice population approach which could be potentially relevant especially in microbiological environments. As expected, results are conceptually similar to those which were obtained for lattice-type interaction graphs, but some spectacular differences can also be revealed. On one hand, in off-lattice populations spatial reciprocity may work more efficiently than for a lattice-based system. On the other hand, competing strategies may separate from each other in the continuous space concept, which gives a chance for cooperators to survive even at relatively high temptation values. Furthermore, the lack of strict neighborhood results in soft borders between competing patches which jeopardizes the long term stability of homogeneous domains. We survey the major social dilemma games based on pair interactions of players and reveal all analogies and differences compared to on-lattice simulations.
description: 8 pages, 9 figures
Effects of deposition dynamics on epitaxial growth
Creators: name: Seo, Jikeun
name: Kim, Hye-Young
name: Kim, J. -S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The dynamic effects, such as the steering and the screening effects during deposition, on an epitaxial growth (Cu/Cu(001)), is studied by kinetic Monte Carlo simulation that incorporates molecular dynamic simulation to rigorously take the interaction of the deposited atom with the substrate atoms into account. We find three characteristic features of the surface morphology developed by grazing angle deposition: (1) enhanced surface roughness, (2) asymmetric mound, and (3) asymmetric slopes of mound sides. Regarding their dependence on both deposition angle and substrate temperature, a reasonable agreement of the simulated results with the previous experimental ones is found. The characteristic growth features by grazing angle deposition are mainly caused by the inhomogeneous deposition flux due to the steering and screening effects, where the steering effects play the major role rather than the screening effects. Newly observed in the present simulation is that the side of mound in each direction is composed of various facets instead of all being in one selected mound angle even if the slope selection is attained, and that the slope selection does not necessarily mean the facet selection.
description: 9 pages, 10 figures
High Cadence Optical Transient Searches using Drift Scan Imaging III: Development of an Inexpensive Drive Control System and Characterisation and Correction of Drive System Periodic Errors
Creators: name: Tingay, S. J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In order to further develop and implement novel drift scan imaging experiments to undertake wide field, high time resolution surveys for millisecond optical transients, an appropriate telescope drive system is required. This paper describes the development of a simple and inexpensive hardware and software system to monitor, characterise, and correct the primary category of telescope drive errors, periodic errors due to imperfections in the drive and gear chain. A model for the periodic errors is generated from direct measurements of the telescope drive shaft rotation, verified by comparison to astronomical measurements of the periodic errors. The predictive model is generated and applied in real-time in the form of corrections to the drive rate. A demonstration of the system shows that that inherent periodic errors of peak-to-peak amplitude ~100'' are reduced to below the seeing limit of ~3''. This demonstration allowed an estimate of the uncertainties on the transient sensitivity timescales of the prototype survey of Tingay & Joubert (2021), with the nominal timescale sensitivity of 21 ms revised to be in the range of 20 - 22 ms, which does not significantly affect the results of the experiment. The correction system will be adopted into the final version of high cadence imaging experiment, which is currently under construction. The correction system is inexpensive (
description: Nine pages, five figures, one table. Accepted to PASA
Digital Twin Based Disaster Management System Proposal: DT-DMS
Creators: name: Dogan, Özgür
name: Sahin, Oguzhan
name: Karaarslan, Enis
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: The damage and the impact of natural disasters are becoming more destructive with the increase of urbanization. Today's metropolitan cities are not sufficiently prepared for the pre and post-disaster situations. Digital Twin technology can provide a solution. A virtual copy of the physical city could be created by collecting data from sensors of the Internet of Things (IoT) devices and stored on the cloud infrastructure. This virtual copy is kept current and up to date with the continuous flow of the data coming from the sensors. We propose a disaster management system utilizing machine learning called DT-DMS is used to support decision-making mechanisms. This study aims to show how to educate and prepare emergency center staff by simulating potential disaster situations on the virtual copy. The event of a disaster will be simulated allowing emergency center staff to make decisions and depicting the potential outcomes of these decisions. A rescue operation after an earthquake is simulated. Test results are promising and the simulation scope is planned to be extended.
description: 5 pages, 6 figures
Recovering the origins of the lenticular galaxy NGC 3115 using multi-band imaging
Creators: name: Buzzo, Maria Luisa
name: Cortesi, Arianna
name: Hernandez-Jimenez, Jose A.
name: Coccato, Lodovico
name: Werle, Ariel
name: Silva, Leandro Beraldo e
name: Grossi, Marco
name: Vika, Marina
name: Barbosa, Carlos Eduardo
name: Lucatelli, Geferson
name: Santana-Silva, Luidhy
name: Bamford, Steven
name: Debattista, Victor P.
name: Forbes, Duncan A.
name: Overzier, Roderik
name: Romanowsky, Aaron J.
name: Ferrari, Fabricio
name: Brodie, Jean P.
name: de Oliveira, Claudia Mendes
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: A detailed study of the morphology of lenticular galaxies is an important way to understand how this type of galaxy formed and evolves over time. Decomposing a galaxy into its components (disc, bulge, bar, ...) allows recovering the colour gradients present in each system, its star formation history, and its assembly history. We use GALFITM to perform a multi-wavelength structural decomposition of the closest lenticular galaxy, NGC 3115, resulting in the description of its stellar light into several main components: a bulge, a thin disc, a thick disc and also evidence of a bar. We report the finding of central bluer stellar populations in the bulge, as compared to the colour of the galaxy outskirts, indicating either the presence of an Active Galactic Nucleus (AGN) and/or recent star formation activity. From the spectral energy distribution results, we show that the galaxy has a low luminosity AGN component, but even excluding the effect of the nuclear activity, the bulge is still bluer than the outer-regions of the galaxy, revealing a recent episode of star formation. Based on all of the derived properties, we propose a scenario for the formation of NGC 3115 consisting of an initial gas-rich merger, followed by accretions and feedback that quench the galaxy, until a recent encounter with the companion KK084 that reignited the star formation in the bulge, provoked a core displacement in NGC 3115 and generated spiral-like features. This result is consistent with the two-phase formation scenario, proposed in previous studies of this galaxy.
description: Accepted for publication in MNRAS: 22 pages, 15 figures, 7 tables, 1 appendix
Spectral distance on the circle
Creators: name: Martinetti, Pierre
Publisher: name: arXiv
Year: 2007
Subjects: subject: Operator Algebras (math.OA)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: A building block of noncommutative geometry is the observation that most of the geometric information of a compact riemannian spin manifold M is encoded within its Dirac operator D. Especially via Connes' distance formula one is able to extract from the spectral properties of D the geodesic distance on M. In this paper we investigate the distance d encoded within a covariant Dirac operator on a trivial U(n)-fiber bundle over the circle with arbitrary connection. It turns out that the connected components of d are tori whose dimension is given by the holonomy of the connection. For n=2 we explicitly compute d on all the connected components. For n>2 we restrict to a given fiber and find that the distance is given by the trace of the module of a matrix. The latest is defined by the holonomy and the coordinates of the points under consideration. This paper extends to arbitrary n and arbitrary connection the results obtained in hep-th/0506147 for U(2)-bundle with constant connection. It confirms interesting properties of the spectral distance with respect to another distance naturally associated to connection, namely the horizontal or Carnot-Caratheodory distance d_H. Especially in case the connection has irrational components, the connected components for d are the closure of the connected components of d_H within the euclidean topology on the torus.
description: Published version. Conclusions unchanged but paper considerably enhanced to make it more readable. One section ("Why the circle ?") added, together with simple examples of horizontal distance. Several figures added as well
A direct and robust method to observationally constrain the halo mass function via the submillimeter magnification bias: Proof of concept
Creators: name: Cueli, M. M.
name: Bonavera, L.
name: González-Nuevo, J.
name: Lapi, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Aims. The main purpose of this work is to provide a method to derive tabulated observational constraints on the halo mass function (HMF) by studying the magnification bias effect on high-redshift submillimeter galaxies. Under the assumption of universality, we parametrize the HMF according to two traditional models, namely the Sheth and Tormen (ST) and Tinker fits and assess their performance in explaining the measured data within the Λ cold dark matter (ΛCDM) model. We also study the potential influence of the halo occupation distribution (HOD) parameters in this analysis and discuss two important aspects regarding the HMF parametrization. Methods. We measure the cross-correlation function between a foreground sample of GAMA galaxies with redshifts in the range $0.2
description: 19 pages, 13 figures, accepted by A&A
Finding optimal Bell inequalities using the cone-projection technique
Creators: name: Bernards, Fabian
name: Gühne, Otfried
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Bell inequalities are relevant for many problems in quantum information science, but finding them for many particles is computationally hard. Recently, a computationally feasible method called cone-projection technique has been developed to find all optimal Bell inequalities under some constraints, which may be given by some symmetry or other linear conditions. In this paper we extend this work in several directions. We use the method to generalize the I4422 inequality to three particles and a so-called GYNI inequality to four particles. Additionally, we find Bell inequalities for three particles that generalize the I3322 inequality and the CHSH inequality at the same time. We discuss the obtained inequalities in some detail and characterize their violation in quantum mechanics.
description: 14 pages, 9 figures
Η Ελλογη Δύναμη στην Επιτομή Περί Ψυχής του Αβερρόη:
Creators: name: Χριστοδούλου, Μαίρη Χρ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2009
Subjects: Νους
Φαντασία
Αραβική Φιλοσοφία
Αριστοτέλης
Intellect
Imagination
Arabic Philosophy
Aristotle

description: Το θέμα της διατριβής είναι η θεωρία της νόησης όπως αυτή αποτυπώνεται στο υπόμνημα του Άραβα φιλοσόφου Αβερρόη, Επιτομή Περί Ψυχής. Ειδικότερα, η παρούσα διατριβή αναφέρεται στο 11ο κεφάλαιο της Επιτομής το οποίο έχει τίτλο «η Έλλογη Δύναμη». Η μετάφραση αυτού του κεφαλαίου της Επιτομής από τα αραβικά επιχειρείται να παρουσιαστεί για πρώτη φορά στην ελληνική γλώσσα. Στόχος της έρευνας είναι η μετάφραση αυτή καθεαυτή του κειμένου και η διερεύνηση και διασάφιση της τεχνικής φιλοσοφικής ορολογίας. Η μέθοδος που ακολουθείται είναι η αντιπαράθεση της αριστοτελικής ορολογίας στα αραβικά (μετάφραση 9ου αι. μ.Χ.) και της αβερροϊκής στα νέα ελληνικά (παρούσα μετάφραση). Για την ανάδειξη της μεταφοράς των όρων από τη μία γλώσσα στην άλλη, αλλά και τον εντοπισμό των νέων όρων οι οποίοι εισάγονται από τους σχολιαστές του Αριστοτέλη, στη διατριβή περιλαμβάνονται δύο πίνακες. Παράλληλα, παρουσιάζονται οι θέσεις των Ελλήνων και Αράβων σχολιαστών, οι ερμηνείες των οποίων απασχόλησαν τον Αβερρόη στη διαμόρφωση των δικών του θέσεων.
description: The subject of this study is the theory of the Intellect as presented in Averroes’ shirt commentaries (Epitome) in De Anima. Specifically it presents the translation of the 11th chapter: “The Rational Faculty”, of the Epitome in De Anima, from the Arabic text into Greek. Furthermore, it attempts to unearth the applicable technical philosophical terminology, comparing the Aristotelian terminology in Arabic (9th century translation) with the Averroian terminology in Greek (present translation), by means of unique translation tables. It also focuses on the different interpretations of the Aristotelian notion of Intellect among Greek and Arab commentators, prior to Averroes.
Emotion-Based Stereotypes toward Caucasian and Mediterranean Groups – Comparison of Explicit and Implicit Associations
Creators: name: Lisa-Marie Segbert
name: Mokros, Andreas
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Personality and Social Contexts
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: The goal of this study is to assess implicit and explicit anger and disgust stereotypes toward Caucasian and Mediterranean people in Germany. Additionally, the influence of personality and individual factors on these stereotypes will be assessed.
This study will be the basis for further studies exploring more complex associations between personality factors and emotion-based stereotypes.
The Evolution of Galaxies in X-ray Luminous Groups
Creators: name: Jeltema, Tesla E.
name: Mulchaey, John S.
name: Lubin, Lori M.
name: Fassnacht, Christopher D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the galaxy populations in seven X-ray selected, intermediate-redshift groups (0.2
description: 50 pages, 8 figures, minor revisons to make consistent with published version, for version with full resolution figures, see http://www.ociw.edu/~tesla/groups.ps.gz
Exploring the Relationship between Sensory Processing Sensitivity and Emotion-induced Blindness
Creators: name: Most, Steven
name: Curby, Kim
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Cognition and Perception
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: This study aims to analyse the relationship between SPS (sensory processing sensitivity) and EIB (emotion-induced blindness).
Enhanced yield of medicinal products from Tripterygium cell cultures
Creators: name: Samija, Mijo Daniel
Publisher: name: University of British Columbia
Year: 2008

description: The growth of cell suspensions of the Asian medicinal plant Tripterygium wilfordii was manipulated in order to produce large amounts of pharmacologically active diterpene and triterpene natural products. A method was developed where elicitation with a strain of the fungus Botrytis stimulated the production of oleanane and friedelane triterpene acids. In rapidly growing twelve liter bioreactor cultures, triterpene yields were increased five to ten fold with this process, routinely providing more than 25 mg/L each of 22α-hydroxy-3-oxoolean-12-en-29-oic acid (B) and 3β,22α-dihydroxyolean-12-en-29-oic acid (D) and more than 5 mg/L each of 22β-hydroxy-3-oxoolean-12-en-29-oic acid (A) and 3β,22β-dihydroxyolean-12-en-29-oic acid (C). Yield improvement for the triptolide family of diterpenes (triptolide and tripdiolide) was approached through the synthesis of potential intermediates of the natural biosynthetic pathways, the first step in a technique where synthetic elaborations would be completed by cell cultures. These synthetic intermediates were also sought to establish the details of triptolide biosynthesis. Advances were made towards the synthesis of one potential intermediate, 18(4￫ 3)-isodehydroabietenolide, starting from (L)-dehydroabietic acid....(more text)
Relational EPR
Creators: name: Smerlak, Matteo
name: Rovelli, Carlo
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: We study the EPR-type correlations from the perspective of the relational interpretation of quantum mechanics. We argue that these correlations do not entail any form of 'non-locality', when viewed in the context of this interpretation. The abandonment of strict Einstein realism implied by the relational stance permits to reconcile quantum mechanics, completeness, (operationally defined) separability, and locality.
description: Revised, published version
Electromagnetic response in an expanding quark-gluon plasma
Creators: name: Shovkovy, Igor A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The validity of conventional Ohm's law is tested in the context of a rapidly evolving quark-gluon plasma produced in heavy-ion collisions. Here we discuss the electromagnetic response using an analytical solution in kinetic theory. As conjectured previously, after switching on an electric field in a nonexpanding plasma, the time-dependent current is given by $\mathbf{J}(t)=(1-e^{-t/τ_0}) σ_{0} \mathbf{E}$, where $τ_0$ is the transport relaxation time and $σ_{0}$ is the steady-state electrical conductivity. Such an incomplete electromagnetic response reduces the efficiency of the magnetic flux trapping in the quark-gluon plasma and may prevent the observation of the chiral magnetic effect. Here we extend the study to the case of a rapidly expanding plasma. We find that the decreasing temperature and the increasing transport relaxation time have opposite effects on the electromagnetic response. While the former suppresses the time-dependent conductivity, the latter enhances it.
description: 9 pages, 2 figures; v2: published version with minor revisions
Consequences of Misaligned AI
Creators: name: Zhuang, Simon
name: Hadfield-Menell, Dylan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: AI systems often rely on two key components: a specified goal or reward function and an optimization algorithm to compute the optimal behavior for that goal. This approach is intended to provide value for a principal: the user on whose behalf the agent acts. The objectives given to these agents often refer to a partial specification of the principal's goals. We consider the cost of this incompleteness by analyzing a model of a principal and an agent in a resource constrained world where the $L$ attributes of the state correspond to different sources of utility for the principal. We assume that the reward function given to the agent only has support on $J < L$ attributes. The contributions of our paper are as follows: 1) we propose a novel model of an incomplete principal-agent problem from artificial intelligence; 2) we provide necessary and sufficient conditions under which indefinitely optimizing for any incomplete proxy objective leads to arbitrarily low overall utility; and 3) we show how modifying the setup to allow reward functions that reference the full state or allowing the principal to update the proxy objective over time can lead to higher utility solutions. The results in this paper argue that we should view the design of reward functions as an interactive and dynamic process and identifies a theoretical scenario where some degree of interactivity is desirable.
Study 1: Depressive symptoms and autobiographical specificity early in the COVID-19 pandemic – addendum
Creators: name: Valenzano, Sabrina
name: Addis, Donna Rose
name: Li-Chay-Chung, Audrey
name: Cheng, Ziming
name: Faryn Starrs
name: Fynes-Clinton, Samuel
name: Riya Trikha
Publisher: name: OSF Registries
Year: 2021
Subjects: subject: Clinical Psychology
subject: Cognitive Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: The purpose of this addendum is to outline additional analyses and variables to further examine pre-registered research questions (see initial pre-registration https://osf.io/tpxzu). Since the initial pre-registration of this project, event description task (EDT) responses have been scored by a team of RAs and students using the Autobiographical Thought Specificity (ATS) protocol. In preparing to analyze these data, we noticed that although our original pre-registration had analogous ATS specificity and generality variables for the SCT, this was not the case for the EDT (only the specific variable was included). Moreover, when a recent study (published since our initial pre-registration) raised the question of the impact of task constraints (or demands) on specificity measures, we realized we could not investigate this question with our data because our ATS variables from the EDT (binary variables due to one trial per condition) were not comparable to those from the SCT (proportions across multiple trials). Note that we incorrectly stated in the original preregistration that the EDT was collected in Survey 1 (S1), when it was actually collected in Survey 0 (S0); thus we use the two SCT trials in S0 to construct the new binary ATS specificity variables. This addendum outlines these new variables, hypotheses and analyses. Note that at the time of this addendum, ATS scores for EDT responses have been unblinded (by DRA), however no further transformations have been applied nor have these data been associated with depression variables.

Second, with respect to analysis of internal and external details from the Autobiographical Interview scoring protocol, we also realized our original pre-registration did not make provision for examining a group by detail-type interaction (as is typically examined in AI studies). We now include this hypothesis and analysis. Note at the time of this addendum, we have computed AI analyses as per the original pre-registration but this new interaction analysis has not been computed.

Numbering of sections and variables below follow the same structure as that used in the original preregistration of this study.
Suppression of Bragg scattering by collective interference of spatially ordered atoms with a high-Q cavity mode
Creators: name: Zippilli, Stefano
name: Morigi, Giovanna
name: Ritsch, Helmut
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: When N driven atoms emit in phase into a high-Q cavity mode, the intracavity field generated by collective scattering interferes destructively with the pump driving the atoms. Hence atomic fluorescence is suppressed and cavity loss becomes the dominant decay channel for the whole ensemble. Microscopically 3D light-intensity minima are formed in the vicinity of the atoms that prevent atomic excitation and form a regular lattice. The effect gets more pronounced for large atom numbers, when the sum of the atomic decay rates exceeds the rate of cavity losses and one would expect the opposite behaviour. These results provide new insight into recent experiments on collective atomic dynamics in cavities.
description: 4 pages, 5 figures
Additional file 1 of Mapping the role of digital health technologies in the case detection, management, and treatment outcomes of neglected tropical diseases: a scoping review
Creators: name: Binyam Tilahun
name: Kassahun Dessie Gashu
name: Zeleke Abebaw Mekonnen
name: Berhanu Fikadie Endehabtu
name: Angaw, Dessie Abebaw
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: Science Policy

description: Additional file 1:. Keywords included in the search strategy for PubMed databases; terms searched for in the title and abstract of papers.
Binding and transport of calcium by synthetic analogues of ionomycin
Creators: name: Hu, Thomas Q.
Publisher: name: University of British Columbia
Year: 2008

description: The syntheses of simple analogues of ionomycin (3), namely a series of f3-diketoco-carboxylic acids 4-6, 28-30 and 33-35, were achieved by consecutive alkylation of the dianion of 2,4-pentanedione (7) with appropriate bromides and subsequent oxidation of theP-diketo tau-alcohols. The transport of calcium across an organic barrier by these synthetic analogues of ionomycin was determined in a cylindrical glass cell using chloroform as the artificial membrane. The presence of the P-diketone and carboxyl groups within the same molecule and a sufficient lipid solubility of the compounds were shown to be necessary and sufficient conditions for calcium transport. Small and no transport of calcium was found for analogue 4 and 6 respectively due to the low lipid solubility of these compounds. The relative calcium transport rates for analogues 28 and 33-35 were 28 > 33 > 35 > 34, which demonstrated that optimum calcium transport was achieved when the P-diketone group was separated from the carboxyl group byseven methylene units identical to the backbone found in ionomycin. Analogues 28-30 were comparable to ionomycin and calcimycin in terms of calcium transport. The transport of calcium by synthetic analogues of ionomycin was found to be a saturable process which obeyed Michaelis-Menten kinetics. It was dependent of the pH in the aqueous source phase and independent of the pH in the receiving phase. Both the carboxyl and the 13-diketone groups were ionized in the transport of calcium, indicating the stoichiometry of calcium complex in transport was 1:1. Analogues 29 and 33 were found to cause transient calcium mobilization in cultured human leukemic cells. The pKa of the 0-diketone group of the analogues was determined to be in the range of 10.90 to 11.16 in 80% Me0H-H20 by UV spectrophotometric titration. The pKa values were 0 0 0^HO OH OH 3 HO directly related to the lipid solubility of the compounds and the hydrocarbon chain length between the 13-diketone and the carboxyl groups. The binding constants of the analogues with calcium and magnesium in 80% Me0H-H20were determined to be in the order of 102 M-1 and 103 M-1 respectively using the pKa method. The binding constants of the analogues with magnesium were also determined by the mole ratio method which established the 1:1 stoichiometry in the magnesium complex. The selectivity in binding was the same as the selectivity in transport, which was Mg2+ > Ca2+ >> Nat, K+. Dimethylation of the 13-diketone 42 proceeded with high diastereoselectivity. The major diastereomer (43b) had the two methyl groups trans to each other. The characterization of the calcium salt of analogue 28 showed that the stoichiometry of the calcium complex in the solid state was 1:1.
title: Vittefleur_Arbre_57
Creators: name: Galinand, Cyrille
name: Université Paris1 Panthéon-Sorbonne
Publisher: name: Archeovision
Year: 2024
Subjects: subject: arborglyphe

description: arborglyphe
description: 1 fichier 3D (ply), 37 fichiers image (jpg)
Additional file 1 of Prevalence of comorbidity in Chinese patients with COVID-19: systematic review and meta-analysis of risk factors
Creators: name: Tingxuan Yin
name: Yuanjun Li
name: Ying, Ying
name: Zhijun Luo
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 1. Study design and performance according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines.
Observational Signatures of Tightly Wound Spirals Driven by Buoyancy Resonances in Protoplanetary Disks
Creators: name: Bae, Jaehan
name: Teague, Richard
name: Zhu, Zhaohuan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Besides the spirals induced by the Lindblad resonances, planets can generate a family of tightly wound spirals through buoyancy resonances. The excitation of buoyancy resonances depends on the thermal relaxation timescale of the gas. By computing timescales of various processes associated with thermal relaxation, namely, radiation, diffusion, and gas-dust collision, we show that the thermal relaxation in protoplanetary disks' surface layers ($Z/R\gtrsim0.1$) and outer disks ($R\gtrsim100$ au) is limited by infrequent gas-dust collisions. The use of isothermal equation of state or rapid cooling, common in protoplanetary disk simulations, is therefore not justified. Using three-dimensional hydrodynamic simulations, we show that the collision-limited slow thermal relaxation provides favorable conditions for buoyancy resonances to develop. Buoyancy resonances produce predominantly vertical motions, whose magnitude at the $^{12}$CO emission surface is of order of $100~{\rm m~s}^{-1}$ for Jovian-mass planets, sufficiently large to detect using molecular line observations with ALMA. We generate synthetic observations and describe characteristic features of buoyancy resonances in Keplerian-subtracted moment maps and velocity channel maps. Based on the morphology and magnitude of the perturbation, we propose that the tightly wound spirals observed in TW Hya could be driven by a (sub-)Jovian-mass planet at 90 au. We discuss how non-Keplerian motions driven by buoyancy resonances can be distinguished from those driven by other origins. We argue that observations of multiple lines tracing different heights, with sufficiently high spatial/spectral resolution and sensitivity to separate the emission arising from the near and far sides of the disk, will help constrain the origin of non-Keplerian motions.
description: Accepted for publication in ApJ, 30 pages, 23 figures, simulated data cubes are available at https://zenodo.org/record/4361639
Space-time evolution of bulk QCD matter
Creators: name: Nonaka, Chiho
name: Bass, Steffen A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We introduce a combined fully three-dimensional macroscopic/microscopic transport approach employing relativistic 3D-hydrodynamics for the early, dense, deconfined stage of the reaction and a microscopic non-equilibrium model for the later hadronic stage where the equilibrium assumptions are not valid anymore. Within this approach we study the dynamics of hot, bulk QCD matter, which is being created in ultra-relativistic heavy ion collisions at RHIC. Our approach is capable of self-consistently calculating the freezeout of the hadronic system, while accounting for the collective flow on the hadronization hypersurface generated by the QGP expansion. In particular, we perform a detailed analysis of the reaction dynamics, hadronic freezeout, and transverse flow.
description: 24 pages, 27 figures
Additional file 4: of ANXA2 promotes esophageal cancer progression by activating MYC-HIF1A-VEGF axis
Creators: name: Ma, Sai
name: Lu, Chen-Chen
name: Yang, Li-Yan
name: Wang, Juan-Juan
name: Wang, Bo-Shi
name: Cai, Hong-Qing
name: Hao, Jia-Jie
name: Xu, Xin
name: Cai, Yan
name: Zhang, Yu
name: Wang, Ming-Rong
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Chemical Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Mental Health

description: Figure S3. Silencing of HIF1A downregulates VEGF expression. KYSE30 and KYSE150 cells were transiently transfected with ANXA2 siRNA or control non-silencing siRNA for 48 h. a Real-time RT-PCR analysis. b Western blot analysis. GAPDH was use as a loading control. (PDF 324 kb).
On A. D. Sakharov's hypothesis of cosmological transitions with changes in the signature of the metric
Creators: name: Shestakova, T. P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: I discuss possible consequences of A. D. Sakharov's hypothesis of cosmological transitions with changes in the signature of the metric, based on the path integral approach. This hypothesis raises a number of mathematical and philosophical questions. Mathematical questions concern the definition of the path integral to include integration over spacetime regions with different signatures of the metric. One possible way to describe the changes in the signature is to admit time and space coordinates to be purely imaginary. It may look like a generalization of what we have in the case of pseudo-Riemannian manifolds with a non-trivial topology. The signature in these regions can be fixed by special gauge conditions on components of the metric tensor. The problem is what boundary conditions should be imposed on the boundaries of these regions and how they should be taken into account in the definition of the path integral. The philosophical question is what distinguishes the time coordinate among other coordinates but the sign of the corresponding principal value of the metric tensor. In particular, I try to speculate how the existence of the regions with different signature can affect the evolution of the Universe.
description: 13 pages, 1 figure, the extended version of the talk given at the 1st Electronic Conference on Universe, the Satellite Workshop "Developing A.D.Sakharov Legacy in Cosmoparticle Physics", 24 February 2021
Continuous Simulation Data Stream: A dynamical timescale-dependent output scheme for simulations
Creators: name: Hausammann, Loic
name: Gonnet, Pedro
name: Schaller, Matthieu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Exa-scale simulations are on the horizon but almost no new design for the output has been proposed in recent years. In simulations using individual time steps, the traditional snapshots are over resolving particles/cells with large time steps and are under resolving the particles/cells with short time steps. Therefore, they are unable to follow fast events and use efficiently the storage space. The Continuous Simulation Data Stream (CSDS) is designed to decrease this space while providing an accurate state of the simulation at any time. It takes advantage of the individual time step to ensure the same relative accuracy for all the particles. The outputs consist of a single file representing the full evolution of the simulation. Within this file, the particles are written independently and at their own frequency. Through the interpolation of the records, the state of the simulation can be recovered at any point in time. In this paper, we show that the CSDS can reduce the storage space by 2.76x for the same accuracy than snapshots or increase the accuracy by 67.8x for the same storage space whilst retaining an acceptable reading speed for analysis. By using interpolation between records, the CSDS provides the state of the simulation, with a high accuracy, at any time. This should largely improve the analysis of fast events such as supernovae and simplify the construction of light-cone outputs.
description: Accepted for publication in "Astronomy and Computing"
An AI-guided Imagery Writing Program to Improve Chinese Healthcare Workers' Mental Health
Creators: name: Ji, Li-Jun
name: Zhangning2019@Zju.Edu.Cn
name: Hu, Chao S.
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Medicine and Health Sciences

description: Chinese healthcare workers endured unprecedented stress during the COVID-19 pandemic, yielding a rise in mental health problems. We propose a text-to-image AI generative art program that will provide the benefits of expressive writing and art therapy, while complying with cultural values and social norms that restrict self-expression. Healthcare workers (N = 560) will be randomly assigned to one of four groups that will vary in the amount, focus, and format of writing. This will include the experimental group who will get feedback from AI-generated images based on their writing about their experience during the pandemic. Mental health and job satisfaction will be assessed before and after the 8-week program. Groups who write about the pandemic should show significant improvement in well-being, in comparison to those who do not write about the pandemic. Moreover, AI-generated imagery feedback should lead participants to spend more time writing and should show greater improvements in mental health and job satisfaction compared to participants who do not receive the feedback.
Minimality of the well-rounded retract
Creators: name: Pettet, Alexandra
name: Souto, Juan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Geometric Topology (math.GT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: We prove that the well-rounded retract of SO_n\SL_n(R) is a minimal SL_n(Z)-invariant spine.
Controlling unconventional superconductivity in artificially engineered $f$-electron Kondo superlattices
Creators: name: Naritsuka, Masahiro
name: Terashima, Takahito
name: Matsuda, Yuji
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Unconventional superconductivity and magnetism are intertwined on a microscopic level in a wide class of materials, including high-$T_c$ cuprates, iron pnictides, and heavy-fermion compounds. A new approach to this most fundamental and hotly debated subject focuses on the role of interactions between superconducting electrons and bosonic fluctuations at the interface between adjacent layers in heterostructures. A recent state-of-the-art molecular-beam-epitaxy technique has enabled us to fabricate superlattices consisting of different heavy-fermion compounds with atomic thickness. These Kondo superlattices provide a unique opportunity to study the mutual interaction between unconventional superconductivity and magnetic order through the atomic interface. Here, we design and fabricate hybrid Kondo superlattices consisting of alternating layers of superconducting CeCoIn$_5$ with $d$-wave pairing symmetry and nonmagnetic metal YbCoIn$_5$ or antiferromagnetic heavy fermion metals, such as CeRhIn$_5$ and CeIn$_3$. In these Kondo superlattices, superconducting heavy electrons are confined within the two-dimensional CeCoIn$_5$ block layers and interact with the neighboring nonmagnetic or magnetic layers through the interface. In CeCoIn$_5$/YbCoIn$_5$ superlattices, the superconductivity is strongly influenced by the local inversion symmetry breaking at the interface. In CeCoIn$_5$/CeRhIn$_5$ and CeCoIn$_5$/CeIn$_3$ superlattices, the superconducting and antiferromagnetic states coexist in spatially separated layers, but their mutual coupling via the interface significantly modifies the superconducting and magnetic properties. The fabrication of a wide variety of hybrid superlattices paves a new way to study the relationship between unconventional superconductivity and magnetism in strongly correlated materials.
description: 18 pages, 17 figures. arXiv admin note: text overlap with arXiv:1904.06937
LE RISORSE INVISIBILI  La gestione del patrimonio  archeologico e scientifico  tra criticità e innovazione
Creators: name: Muttillo, Brunella
name: Cangemi, Marina
name: Peretto, Carlo
Publisher: name: Sezione di Museologia Scientifica e Naturalistica
Year: 2015

description: Il patrimonio culturale italiano riveste grande importanza e significato a livello mondiale, non solo per la sua complessità, che deriva dalla sequenza di fondamentali contesti storici che si sono succeduti nel tempo, ma anche per le sue dimensioni, in termini di qualità e quantità.

Quest’ultimo aspetto, quello della quantità, è da tempo discusso in differenti ambiti in particolare con riferimento all’insieme dei beni culturali conservati nei depositi di musei e istituzioni che, seppur organizzati, spesso non sono nelle condizioni di facilitarne la fruizione, non soltanto a carattere scientifico, ma anche nei riguardi del grande pubblico.

Al fine di sviluppare questo tema e consentire una migliore conoscenza delle differenti modalità di conservazione dei reperti, l’Università degli Studi di Ferrara ha promosso, nell’ambito del Dottorato in Scienze e Tecnologie per l'Archeologia e i Beni culturali, una linea di ricerca volta alla comprensione delle modalità di gestione dei materiali e delle collezioni che non sono o non possono essere oggetto di esposizione.

Gli obiettivi che ci si propone di raggiungere riguardano la messa a punto di modalità di catalogazione in linea tra le varie istituzioni al fine di pervenire ad una appropriata conoscenza del patrimonio “sommerso”, di proporre possibili interventi per il monitoraggio della qualità degli spazi adibiti a depositi (umidità, temperatura, luce, etc.), di approfondire le problematiche connesse con la fruizione delle raccolte conservate, anche nella previsione di eventuali spostamenti sia per esposizioni che per delocalizzazioni.

L’iniziativa è supportata da borse di studio del Ministero dell’Istruzione, dell’Università e della Ricerca sul programma Fondo per il sostegno dei giovani (Circolare Ministeriale n. 2236 del 04/10/2012). Per lo svolgimento delle attività è stata stipulata una convenzione specifica con il Ministero dei Beni e delle Attività Culturali e del Turismo e con l'Associazione Nazionale Musei Locali e Istituzionali.

L’azione concreta ha visto l’elaborazione di un questionario, disponibile anche in rete, che ha per oggetto la rilevazione dello stato dell’arte in materia di gestione e movimentazione dei beni culturali custoditi presso i musei statali e non statali e gli istituti similari a carattere museale. Contestuale è l’apertura di un dialogo con le imprese che intervengono nel settore del monitoraggio degli ambienti museali e che svolgono la loro attività specialistica nell’organizzazione di eventi con processi di movimentazione dei materiali a carattere culturale.
Le informazioni raccolte consentiranno di avere un quadro generale, a livello statistico, della realtà italiana e di proporre proposte gestionali migliorative.
description: Sezione di Museologia Scientifica e Naturalistica, Vol 11, N° 1 (2015)
Additional file 1 of Role of endothelial microRNA 155 on capillary leakage in systemic inflammation
Creators: name: Etzrodt, Valerie
name: Temitayo O. Idowu
name: Schenk, Heiko
name: Seeliger, Benjamin
name: Prasse, Antje
name: Thamm, Kristina
name: Pape, Thorben
name: Müller-Deile, Janina
name: Matijs Van Meurs
name: Thum, Thomas
name: Ankita Garg
name: Geffers, Robert
name: Stahl, Klaus
name: Parikh, Samir M.
name: Haller, Hermann
name: David, Sascha
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer

description: Additional file 1: Supplemental Material.