cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Underreporting of drug use among electronic dance music party attendees
Creators: name: Palamar, Joseph J.
name: Salomone, Alberto
name: Keyes, Katherine M.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Electronic dance music (EDM) party attendees are at high risk for drug use. However, little is known regarding the extent of underreporting of drug use in this population, in part, because use of synthetic drugs is often associated with unknown exposure to adulterant drugs. We estimated the extent of underreported drug use in this population by comparing self-reported use to hair toxicology results. Time-space sampling was used to survey adults entering EDM events at nightclubs and dance festivals in New York City from January through August of 2019. Seven hundred ninety-four adults were surveyed and 141 provided analyzable hair samples. We queried past-year use of >90 drugs and tested hair samples using ultra-high performance liquid chromatography–tandem mass spectrometry. We compared hair test results to past-year self-reported use and adjusted prevalence estimates by defining use as reporting use or testing positive. Correlates of discordant reporting, defined as testing positive after not reporting use, were estimated. Prevalence of drug use increased when considering positive hair tests in estimates, with 43.8% of participants testing positive for at least one drug after not reporting use. For example, based on self-report, cocaine use prevalence was 51.1%, and increased by a factor of 1.6 to a prevalence of 80.0% when adding hair test results to self-report. Younger adults (ages 18–25), black and other/mixed race participants, those reporting “other” sexuality, and those with a college degree were at significantly higher risk for testing positive for drugs not reportedly used. Those who self-reported using more types of drugs were less likely to test positive after not reporting use (adjusted prevalence ratio = 0.53, 95% confidence interval = 0.41-0.68). We detected underreporting of drug use, particularly cocaine and ketamine. More research is needed to determine whether this is driven by intentional underreporting or unknown exposure through adulterants.
Quasi-Stationary Distributions for Models of Heterogeneous Catalysis
Creators: name: de Oliveira, Marcelo M.
name: Dickman, Ronald
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We construct the quasi-stationary (QS) distribution for two models of heterogeneous catalysis having two absorbing states: the ZGB model for the oxidation of CO, and a version with noninstantaneous reactions. Using a mean-field-like approximation, we study the quasi-stationary surface coverages, moment ratios and the lifetime of the QS state. We also derive an improved, consistent one-site mean-field theory for the ZGB model.
description: 18 pages, 13 figures
Damping of the de Haas-van Alphen oscillations in the superconducting state of MgB_2
Creators: name: Fletcher, J. D.
name: Carrington, A.
name: Kazakov, S. M.
name: Karpinski, J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The de Haas-van Alphen (dHvA) signal arising from orbits on the $π$ Fermi surface sheet of the two-gap superconductor MgB$_2$ has been observed in the vortex state below $H_{c2}$. An extra attenuation of the dHvA signal, beyond those effects described in the conventional Lifshitz-Kosevich expression, is seen due to the opening of the superconducting gap. Our data show that the $π$ band gap is still present up to $H_{c2}$. The data are compared to current theories of dHvA oscillations in the superconducting state which allow us to extract estimates for the evolution of the $π$ band gap with magnetic field. Contrary to results for other materials, we find that the most recent theories dramatically underestimate the damping in MgB$_2$.
description: 10 pages with figures. Submitted to Phys. Rev. B. PDF version with higher quality figures can be found at http://www.phy.bris.ac.uk/research/cond_matt/PdfPubs/mgb2RSdhva.pdf
Pseudosinella duodecimpunctata Denis 1931
Creators: name: Thibaud, Jean-Marc
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Collembola
Entomobryomorpha
Entomobryidae
Pseudosinella
Pseudosinella duodecimpunctata

description: Pseudosinella duodecimpunctata Denis, 1931 *
Pseudosinella duodecimpunctata Denis, 1931b: 11.
DISTRIBUTION. — Alpes-Maritimes. Gouffre du Caladaire, 885 m, prèsde Banon (Ginet 1955).
Ardèche. Grottede Saint-Marcel (Delamare Deboutteville 1952b). — Idem et Baume Saint-Arnaudprèsde Les Assions (Thibaud & Stomp 1978).
Ariège. Grottes d’Aubert près de Moulis et de Tourtouse (Thibaud 1970).
Isère. Corenc, massif dela Grande-Chartreuse (Vaillant 1956).
Meurthe-et-Moselle. Grottedes Excentriques près de Pierre-la- Treiche (Thibaud 1970).
ÉCOLOGIE. — Vaillant 1956 (faune hygropétrique).
description: Published as part of Thibaud, Jean-Marc, 2017, Catalogue des collemboles de France, pp. 297-436 in Zoosystema 39 (3) on page 390, DOI: 10.5252/z2017n3a1, http://zenodo.org/record/5496272
An integral equation approach to time-dependent kinematic dynamos in finite domains
Creators: name: Xu, Mingtian
name: Stefani, Frank
name: Gerbeth, Gunter
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The homogeneous dynamo effect is at the root of cosmic magnetic field generation. With only a very few exceptions, the numerical treatment of homogeneous dynamos is carried out in the framework of the differential equation approach. The present paper tries to facilitate the use of integral equations in dynamo research. Apart from the pedagogical value to illustrate dynamo action within the well-known picture of Biot-Savart's law, the integral equation approach has a number of practical advantages. The first advantage is its proven numerical robustness and stability. The second and perhaps most important advantage is its applicability to dynamos in arbitrary geometries. The third advantage is its intimate connection to inverse problems relevant not only for dynamos but also for technical applications of magnetohydrodynamics. The paper provides the first general formulation and application of the integral equation approach to time-dependent kinematic dynamos in finite domains. For the spherically symmetric alpha^2 dynamo model it is shown how the general formulation is reduced to a coupled system of two radial integral equations for the defining scalars of the poloidal and the toroidal field components. The integral equation formulation for spherical dynamos with general velocity fields is also derived. Two numerical examples, the alpha^2 dynamo model with radially varying alpha, and the Bullard-Gellman model illustrate the equivalence of the approach with the usual differential equation method.
description: 23 pages, 6 figures
Nonlocal quantum correlations under amplitude damping decoherence
Creators: name: Pramanik, Tanumoy
name: Cho, Young-Wook
name: Han, Sang-Wook
name: Lee, Sang-Yun
name: Moon, Sung
name: Kim, Yong-Su
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Different nonlocal quantum correlations of entanglement, steering and Bell nonlocality are defined with the help of local hidden state (LHS) and local hidden variable (LHV) models. Considering their unique roles in quantum information processing, it is of importance to understand the individual nonlocal quantum correlation as well as their relationship. Here, we investigate the effects of amplitude damping decoherence on different nonlocal quantum correlations. In particular, we have theoretically and experimentally shown that the entanglement sudden death phenomenon is distinct from those of steering and Bell nonlocality. In our scenario, we found that all the initial states present sudden death of steering and Bell nonlocality, while only some of the states show entanglement sudden death. These results suggest that the environmental effect can be different for different nonlocal quantum correlations, and thus, it provides distinct operational interpretations of different quantum correlations.
description: 9 pages, 4 figures including appendix
Cheumatopsyche cressida Malicky 1997
Creators: name: Oláh, János
name: Johanson, Kjell Arne
name: Barnard, Peter C.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Hydropsychidae
Cheumatopsyche
Cheumatopsyche cressida

description: Cheumatopsyche cressida Malicky, 1997
 Cheumatopsyche cressida Malicky, 1997: 1031.
 Type locality: Nepal.
description: Published as part of Oláh, János, Johanson, Kjell Arne & Barnard, Peter C., 2008, Revision of the Oriental and Afrotropical species of Cheumatopsyche Wallengren (Hydropsychidae, Trichoptera), pp. 1-171 in Zootaxa 1738 on page 132
Tests of AGN Feedback Kernels in Simulated Galaxy Clusters
Creators: name: Glines, Forrest W.
name: O'Shea, Brian W.
name: Voit, G. Mark
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In cool-core galaxy clusters with central cooling times much shorter than a Hubble time, condensation of the ambient central gas is regulated by a heating mechanism, probably an active galactic nucleus (AGN). Previous analytical work has suggested that certain radial distributions of heat input may result in convergence to a quasi-steady global state that does not substantively change on the timescale for radiative cooling, even if the heating and cooling are not locally in balance. To test this hypothesis, we simulate idealized galaxy cluster halos using the \ENZO code with an idealized, spherically symmetric heat-input kernel intended to emulate. Thermal energy is distributed with radius according to a range of kernels, in which total heating is updated to match total cooling every $10 ~\text{Myr}$. Some heating kernels can maintain quasi-steady global configurations, but no kernel we tested produces a quasi-steady state with central entropy as low as those observed in cool-core clusters. The general behavior of the simulations depends on the proportion of heating in the inner $10 ~\text{kpc}$, with low central heating leading to central cooling catastrophes, high central heating creating a central convective zone with an inverted entropy gradient, and intermediate central heating resulting in a flat central entropy profile that exceeds observations. The timescale on which our simulated halos fall into an unsteady multiphase state is proportional to the square of the cooling time of the lowest entropy gas, allowing more centrally concentrated heating to maintain a longer lasting steady state.
description: 17 pages, 8 figures
Pseudosinella duprei Beruete, Baquero & Jordana 2002
Creators: name: Thibaud, Jean-Marc
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Collembola
Entomobryomorpha
Entomobryidae
Pseudosinella
Pseudosinella duprei

description: Pseudosinella duprei Beruete, Baquero & Jordana, 2002
Pseudosinella duprei Beruete, Baquero & Jordana, 2002: 389.
DISTRIBUTION. — Pyrénées-Atlantiques. Gouffre Redoute Louis XIV (Beruete etal. 2002).
description: Published as part of Thibaud, Jean-Marc, 2017, Catalogue des collemboles de France, pp. 297-436 in Zoosystema 39 (3) on page 390, DOI: 10.5252/z2017n3a1, http://zenodo.org/record/5496272
Surface modification of doxorubicin-loaded nanoparticles based on polydopamine with pH-sensitive property for tumor targeting therapy
Creators: name: Bi, Dongdong
name: Zhao, Lei
name: Yu, Runqi
name: Li, Haowen
name: Guo, Yifei
name: Wang, Xiangtao
name: Han, Meihua
Publisher: name: Taylor & Francis
Year: 2018
Subjects: Biophysics
Biochemistry
Space Science
Medicine
Pharmacology
Biotechnology
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Cancer

description: One major challenge of current surface modification of nanoparticles is the demand for chemical reactive polymeric layers, such modification is always complicated, inefficient, and may lead the polymer lose the ability to encapsulate drug. To overcome this limitation, we adopted a pH-sensitive platform using polydopamine (PDA) as a way of functionalizing nanoparticles (NPs) surfaces. All this method needed to be just a brief incubation in weak alkaline solution of dopamine, which was simple and applicable to a variety of polymer carriers regardless of their chemical reactivity. We successfully conjugated the doxorubicin (DOX)-PDA-poly (lactic-co-glycolic acid) (PLGA) NPs with two typical surface modifiers: folate (FA) and a peptide (Arg-Gly-Asp, RGD). The DOX-PDA-FA-NPs and DOX-PDA-RGD-NPs (targeting nanoparticles) were characterized by particle size, zeta potential, and surface morphology. They were quite stable in various physiological solutions and exhibited pH-sensitive property in drug release. Compared to DOX-NPs, the targeting nanoparticles possessed an excellent targeting ability against HeLa cells. In addition, the in vivo study demonstrated that targeting nanoparticles achieved a tumor inhibition rate over 70%, meanwhile prominently decreased the side effects of DOX and improve drug distribution in tumors. Our studies indicated that the DOX-PLGA-NPs modified with PDA and various functional ligands are promising nanocarriers for targeting tumor therapy.
Similarity and contrasts between thermodynamic properties at the critical point of liquid alkali metals and of electron-hole droplets
Creators: name: Leys, F. E.
name: March, N. H.
name: Angilella, G. G. N.
name: Zhang, M. L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The recent experimental study by means of time-resolved luminescence measurements of an electron-hole liquid (EHL) in diamond by Shimano et al. [Phys. Rev. Lett. 88 (2002) 057404] prompts us to compare and contrast critical temperature T_c and critical density n_c relations in liquid alkali metals with those in electron-hole liquids. The conclusion drawn is that these systems have similarities with regard to critical properties. In both cases the critical temperature is related to the cube root of the critical density. The existence of this relation is traced to Coulomb interactions and to systematic trends in the dielectric constant of the electron-hole systems. Finally a brief comparison between the alkalis and EHLs of the critical values for the compressibility ratio Z_c is also given.
SLO-ML: A Language for Service Level Objective Modelling in Multi-cloud Applications
Creators: name: Elhabbash, Abdessalam
name: Jumagaliyev, Assylbek
name: Blair, Gordon S.
name: Elkhatib, Yehia
Publisher: name: arXiv
Year: 2020
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Cloud modelling languages (CMLs) are designed to assist customers in tackling the diversity of services in the cloud market. While many CMLs have been proposed in the literature, they lack practical support for automating the selection of services based on the specific service level objectives of a customer's application. We put forward SLO-ML, a novel and generative CML to capture service level requirements and, subsequently, to select the services to honour customer requirements and generate the deployment code appropriate to these services. We present the architectural design of SLO-ML and the associated broker that realises the deployment operations. We rigorously evaluate SLO-ML using a mixed methods approach. First, we exploit an experimental case study with a group of researchers and developers using a real-world cloud application. We also assess overheads through an exhaustive set of empirical scalability tests. Through expressing the levels of gained productivity and experienced usability, we highlight SLO-ML's profound potential in enabling user-centric cloud brokers. We also discuss limitations as application requirements grow.
Invariant hyperkahler structures on the cotangent bundles of Hermitian symmetric spaces
Creators: name: Mykytyuk, I. V.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Differential Geometry (math.DG)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 32Q15; 37J15

description: Let $G/K$ be an irreducible Hermitian symmetric spaces of compact type with the standard homogeneous complex structure. Then the real symplectic manifold $(T^*(G/K),Ω)$ has the natural complex structure $J^-$. We construct all $G$-invariant Kähler structures $(J,Ω)$ on homogeneous domains in $T^*(G/K)$ anticommuting with $J^-$. Each such a hypercomplex structure, together with a suitable metric, defines a hyperkähler structure. As an application, we obtain a new proof of the Harish-Chandra and Moore theorem.
description: 24 pages, AMSTEX,some offprints and the proof of Lemma 4.10 are corrected
Cheumatopsyche saltorum Mey 1998
Creators: name: Oláh, János
name: Johanson, Kjell Arne
name: Barnard, Peter C.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Hydropsychidae
Cheumatopsyche
Cheumatopsyche saltorum

description: Cheumatopsyche saltorum Mey, 1998
 Cheumatopsyche saltorum Mey, 1998a: 7.
 Type locality: Philippines.
description: Published as part of Oláh, János, Johanson, Kjell Arne & Barnard, Peter C., 2008, Revision of the Oriental and Afrotropical species of Cheumatopsyche Wallengren (Hydropsychidae, Trichoptera), pp. 1-171 in Zootaxa 1738 on page 101
FAIRness in publishing and evaluating scientific knowledge
Creators: name: Waltman, Ludo
Publisher: name: Zenodo
Year: 2021
Subjects: FAIR data
FAIR publishing
FAIR peer review
open access
open metadata
open peer review
transparent peer review
findability
accessibility
interoperability
reusability

description: Online presentation at the 1st International Workshop on Scientific Knowledge: Representation, Discovery, and Assessment (Sci-K 2021) on April 13, 2021.
Intranight optical variability of radio-quiet and radio lobe dominated quasars
Creators: name: Stalin, C. S.
name: Gopal-Krishna
name: Sagar, Ram
name: Wiita, Paul J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present results of a programme of multi-epoch, intra-night optical monitoring of a sample of non-blazar type AGN, which includes seven radio-quiet QSOs (RQQs) and an equal number of radio-loud, lobe-dominated quasars (LDQs), covering a redshift range from about 0.2 to 2.0. These two sets of optically bright and intrinsically luminous QSOs are well matched in the redshift-optical luminosity ($z - M_B$) plane. Our CCD monitoring covered a total of 61 nights with an average of 6.1 hours of densely sampled monitoring of just a single QSO per night, thereby achieving a typical detection threshold of $\sim 1$% variation over the night. Unambiguous detection of intra-night variability(INOV) amplitudes in the range 1$-$3% on day-like or shorter time scales were thus made for both RQQs and LDQs. Based on these clear detections of INOV, we estimate duty cycles of 17% and 9% for RQQs and LDQs, respectively; inclusion of the two cases of probable variations of LDQs would raise the duty cycle to 15% for LDQs. The similarity in the duty cycle and amplitude of INOV for the RQQs and LDQs suggests, firstly, that the radio loudness alone does not guarantee an enhanced INOV in QSOs and,secondly, that as in LDQs, relativistic jets may also be present in RQQs. We argue that, as compared to BL Lacs, the conspicuously milder, rarer and possibly slower INOV of RQQs and LDQs, can in fact be readily understood in terms of their having optical synchrotron jets which are modestly misaligned from us,but are otherwise intrinsically as relativistic and active as the jets in BL Lacs.
description: 14 pages, 8 Figures. Submitted to MNRAS
Pseudosinella edax Gisin 1967
Creators: name: Thibaud, Jean-Marc
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Collembola
Entomobryomorpha
Entomobryidae
Pseudosinella
Pseudosinella edax

description: Pseudosinella edax Gisin, 1967
Pseudosinella edax Gisin, 1967: 15.
DISTRIBUTION. — Savoie. Forêtde Mâcot-la-Plagne, 950- 2150 m (Loranger etal. 2001).
ÉCOLOGIE. — Loranger etal. 2001 (sol acide).
description: Published as part of Thibaud, Jean-Marc, 2017, Catalogue des collemboles de France, pp. 297-436 in Zoosystema 39 (3) on page 390, DOI: 10.5252/z2017n3a1, http://zenodo.org/record/5496272
Cellularity of centrosymmetric matrix algebras and Frobenius extensions
Creators: name: Xi, Changchang
name: Yin, Shujun
Publisher: name: arXiv
Year: 2019
Subjects: subject: Rings and Algebras (math.RA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: Primary 15B05, 15B33, 16W10, Secondary 16S50, 19D50, 11C20

description: Centrosymmetric matrices of order $n$ over an arbitrary algebra $R$ form a subalgebra of the full $n\times n$ matrix algebra over $R$. It is called the centrosymmetric matrix algebra of order $n$ over $R$ and denoted by $S_n(R)$. We prove (1) $S_n(R)$ is Morita equivalent to $S_2(R)$ if $n$ is even, and to $S_3(R)$ if $n\ge 3$ is odd; (2) the full $n\times n$ matrix algebra over $R$ is a separable Frobenius extension of $S_n(R)$; and (3) if $R$ is a commutative ring, then $S_n(R)$ is a cellular $R$-algebra in the sense of Graham-Lehrer for all $n\ge 1$.
description: 8 pages
Demonstration of a quantized acoustic octupole topological insulator
Creators: name: Ni, Xiang
name: Li, Mengyao
name: Weiner, Matthew
name: Alù, Andrea
name: Khanikaev, Alexander B.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Recently extended from the modern theory of electric polarization, quantized multipole topological insulators (QMTIs) describe higher-order multipole moments, lying in nested Wilson loops, which are inherently quantized by lattice symmetries. Overlooked in the past, QMTIs reveal new types of gapped boundaries, which themselves represent lower-dimensional topological phases and host topologically protected zero-dimensional (0D) corner states. Inspired by these pioneering theoretical predictions, tremendous efforts have been devoted to the experimental observation of topological quantized quadrupole phase in a variety of two dimensional (2D) metamaterials. However, due to stringent requirements of anti-commuting reflection symmetries in crystals, it has been challenging to achieve higher-order quantized multipole moments, such as octupole moments, in a realistic three-dimensional (3D) structure. Here, we overcome these challenges, and experimentally realize the acoustic analogue of a quantized octupole topological insulator (QOTIs) using negatively coupled resonators. We confirm by first-principle studies that our design possesses a quantized octupole topological phase, and experimentally demonstrate spectroscopic evidence of a topological hierarchy of states in our metamaterial, observing 3rd order corner states, 2nd order hinge states and 1st order surface states. Furthermore, we reveal topological phase transitions from higher- to lower-order multipole moments in altered designs of acoustic TIs. Our work offers a new pathway to explore higher-order topological states (HOTSs) in 3D classical platforms.
description: 15 pages, 7 figures
An elliptic property of parabolic trajectories
Creators: name: Fernández-Chapou, J. L.
name: Salas-Brito, A. L.
name: Vargas, C. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Physics Education (physics.ed-ph)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: The curve joining the points of maximum height in the parabolas of ideal projectile motion is shown to be an ellipse. Some features of the motion are illustrated with the help of such ellipse.
description: 4 pages, 1 figure. A shorter version of this typescript is scheduled to be published in the Am. J. Phys. probably in May 2004
Optical variability properties of high luminosity AGN classes
Creators: name: Stalin, C. S.
name: Gopal-Krishna
name: Sagar, Ram
name: Wiita, Paul J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of a comparative study of the intra-night optical variability (INOV) characteristics of radio-loud and radio-quiet quasars, which involves a systematic intra-night optical monitoring of seven sets of high luminosity AGNs covering the redshift range {\it z} $\simeq 0.2$ to {\it z} $\simeq 2.2$. The sample, matched in the optical luminosity -- redshift (M$_B$ -- z) plane, consists of seven radio-quiet quasars (RQQs), eight radio lobe-dominated quasars (LDQs), six radio core-dominated quasars (CDQs) and five BL Lac objects (BLs). Systematic CCD observations, aided by a careful data analysis procedure, have allowed us to detect INOV with amplitudes as low as 1%. Present observations cover a total of 113 nights (720 hours) with only a single quasar monitored as continuously as possible on a night. Considering cases of only unambiguous detections of INOV we have estimated duty cycles (DCs) of 17%, 12%, 20% and 72% respectively for RQQs, LDQs, CDQs, and BLs. The low amplitude and low DC of INOV shown by RQQs compared to BLs can be understood in terms of their having optical synchrotron jets which are modestly misdirected from us. From our fairly extensive dataset, no unambiguous general trend of a correlation between the INOV amplitude and the apparent optical brightness of the quasar is noticed.
description: 36 pages, 14 Figures, due to large size Fig. 5,6,11 and 12 are not included. Intersted people contact to sagar@upso.ernet.in. Submitted to Journal of Astrophysics and Astronomy
Application of Sharafutdinov's Ray Transform in Integrated Photoelasticity
Creators: name: Hammer, H.
name: Lionheart, B.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We explain the main concepts centered around Sharafutdinov's ray transform, its kernel, and the extent to which it can be inverted. It is shown how the ray transform emerges naturally in any attempt to reconstruct optical and stress tensors within a photoelastic medium from measurements on the state of polarization of light beams passing through the strained medium. The problem of reconstruction of stress tensors is crucially related to the fact that the ray transform has a nontrivial kernel; the latter is described by a theorem for which we provide a new proof which is simpler and shorter as in Sharafutdinov's original work, as we limit our scope to tensors which are relevant to Photoelasticity. We explain how the kernel of the ray transform is related to the decomposition of tensor fields into longitudinal and transverse components. The merits of the ray transform as a tool for tensor reconstruction are studied by walking through an explicit example of reconstructing the $σ_{33}$-component of the stress tensor in a cylindrical photoelastic specimen. In order to make the paper self-contained we provide a derivation of the basic equations of Integrated Photoelasticity which describe how the presence of stress within a photoelastic medium influences the passage of polarized light through the material.
Codimension-$1$ Simplices in Divisible Convex Domains
Creators: name: Bobb, Martin D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M50, 57N16, 20H10

description: Properly embedded simplices in a convex divisible domain $Ω\subset \mathbb{R} \textrm{P}^d$ behave somewhat like flats in Riemannian manifolds, so we call them flats. We show that the set of codimension-$1$ flats has image which is a finite collection of disjoint virtual $(d-1)$-tori in the compact quotient manifold. If this collection of virtual tori is non-empty, then the components of its complement are cusped convex projective manifolds with type $d$ cusps.
description: 21 pages, 3 figures
Pseudosinella efficiens Gisin & Gama 1969
Creators: name: Thibaud, Jean-Marc
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Collembola
Entomobryomorpha
Entomobryidae
Pseudosinella
Pseudosinella efficiens

description: Pseudosinella efficiens Gisin & Gama, 1969
Pseudosinella efficiens Gisin & Gama, 1969b: 289.
DISTRIBUTION. — Alpes-Maritimes. Grotte de la Chèvre d’Or à Roquefort-les-Pins (Gisin & Gama 1969b; Gama 1991).
Bouches-du-Rhône. Grottedes Espagnols à Cassis (Gisin & Gama 1969b). — Grotte Roland prèsde Marseille (Gama 1973). — Camargue (Poinsot 1973). — Cadarache (Poinsot-Balaguer 1976d). — Camargue, La Gacholle, Salinde Badon (Poinsot-Balaguer 1979).
Corse. Poinsot 1970?
Isère. Gouffrede Saint-Cassien, massif dela Sainte-Baumeet Regaïe de Néoule, massif de Siou Blanc (Gama 1973).
Var. Grotte des Fées à Hyères (Gisin & Gama 1969b).
Vaucluse. Saint-Sépulcre, régionde Mirabeau (Gama 1973).
ÉCOLOGIE. — Poinsot 1973; Poinsot-Balaguer 1976d (irradiation); Poinsot-Balaguer 1979.
description: Published as part of Thibaud, Jean-Marc, 2017, Catalogue des collemboles de France, pp. 297-436 in Zoosystema 39 (3) on page 390, DOI: 10.5252/z2017n3a1, http://zenodo.org/record/5496272
Electronic Structure of Paramagnetic V_2O_3: Strongly Correlated Metallic and Mott Insulating Phase
Creators: name: Keller, G.
name: Held, K.
name: Eyert, V.
name: Vollhardt, D.
name: Anisimov, V. I.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: LDA+DMFT, the computation scheme merging the local density approximation and the dynamical mean-field theory, is employed to calculate spectra both below and above the Fermi energy and spin and orbital occupations in the correlated paramagnetic metallic and Mott insulating phase of V_2O_3. The self-consistent DMFT equations are solved by quantum Monte Carlo simulations. Room temperature calculations provide direct comparison with experiment. They show a significant increase of the quasiparticle height in comparison with the results at 1160 K. We also obtain new insights into the nature of the Mott-Hubbard transition in V_2O_3. Namely, it is found to be strikingly different from that in the one-band Hubbard model due to the orbital degrees of freedom. Furthermore we resolve the puzzle of the unexpectedly small Mott gap in Cr-doped V_2O_3.
description: 14 pages, 22 figures
Autonomous Energy Transducer: Proposition, Example, Basic Characteristics
Creators: name: Nakagawa, Naoko
name: Kaneko, Kunihiko
Publisher: name: arXiv
Year: 2003
Subjects: subject: Condensed Matter (cond-mat)
subject: Subcellular Processes (q-bio.SC)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We propose a concept of autonomous energy transducer at a molecular scale, where output is produced with small input energy, of the same order of the thermal energy, without restriction of magnitude or timing of input, and without any control after the input. As an example that satisfies these requisites, a dynamical systems model with several degrees of freedom is proposed, which transduces input energy to output motion on the average. It is shown that this transduction is robust and the coupling between the input and output is generally loose. How this transducer works is analyzed in terms of dynamical systems theory, where chaotic dynamics of the internal degrees of freedom, as well as duration of active state which is self-organized with the energy flow, is essential. We also discuss possible relationships to enzyme dynamics or protein motors.
description: 14 pages, 12 figures
Scale invariance of cell size fluctuations in starving bacteria
Creators: name: Shimaya, Takuro
name: Okura, Reiko
name: Wakamoto, Yuichi
name: Takeuchi, Kazumasa A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cell Behavior (q-bio.CB)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: In stable environments, cell size fluctuations are thought to be governed by simple physical principles, as suggested by recent findings of scaling properties. Here, by developing a microfluidic device and using E. coli, we investigate the response of cell size fluctuations against starvation. By abruptly switching to non-nutritious medium, we find that the cell size distribution changes but satisfies scale invariance: the rescaled distribution is kept unchanged and determined by the growth condition before starvation. These findings are underpinned by a model based on cell growth and cell cycle. Further, we numerically determine the range of validity of the scale invariance over various characteristic times of the starvation process, and find the violation of the scale invariance for slow starvation. Our results, combined with theoretical arguments, suggest the relevance of the multifork replication, which helps retaining information of cell cycle states and may thus result in the scale invariance.
description: 15+23 pages, 5+11 figures and 2 tables
The Area of Polynomial Images and Preimages
Creators: name: Crane, Edward
Publisher: name: arXiv
Year: 2003
Subjects: subject: Complex Variables (math.CV)
subject: Classical Analysis and ODEs (math.CA)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 30C10 (Primary) 26D05, 30C85 (Secondary)

description: Let p be a monic polynomial in one complex variable and K a measurable subset of the complex plane. In terms of the area of K, we give an upper bound on the area of the preimage of K under p and a lower bound on the area of the image of K under p, (counted with multiplicity). Both bounds are sharp. The former extends an inequality of Polya. The proof uses Carleman's isoperimetric inequality for plane condensers. We include a summary of the necessary potential theory.
description: 8 pages
Structure in the early afterglow lightcurve of the gamma-ray burst of 29 March 2003
Creators: name: Uemura, Makoto
name: Kato, Taichi
name: Ishioka, Ryoko
name: Yamaoka, Hitoshi
name: Monard, Berto
name: Nogami, Daisaku
name: Maehara, Hiroyuki
name: Sugie, Atsushi
name: Takahashi, Susumu
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Gamma-ray bursts (GRBs) are energetic explosions that for 0.01--100 s are the brightest gamma-ray sources in the sky. Observations of the early evolution of afterglows we expected to provide clues about the nature of the bursts, but their rapid fading has hampered such studies; some recent rapid localizations of bursts have improved the situation. Here we report on an early detection of the very bright afterglow of the burst of 29 March 2003 (GRB030329). Our data show that, even early in the aferglow phase, the light curve shows unexpectedly complicated structures superimposed on the fading background.
description: 8 pages, 1 figure, To appear in Nature June 19 issue. For the access to the data in the paper, see http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/GRB/grb030329/GRB030329_information .html
MDMA-related presentations to the emergency departments of the European Drug Emergencies Network plus (Euro-DEN Plus) over the four-year period 2014–2017
Creators: name: Noseda, Roberta
name: Schmid, Yasmin
name: Scholz, Irene
name: Liakoni, Evangelia
name: Liechti, Matthias E.
name: Dargan, Paul I.
name: Wood, David M.
name: Dines, Alison M.
name: Yates, Christopher
name: Heyerdahl, Fridtjof
name: Hovda, Knut E.
name: Giraudon, Isabelle
name: Ceschi, Alessandro
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Pharmacology
subject: Ecology
subject: FOS: Biological sciences
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases
subject: Computational Biology

description: 3,4-Methylenedioxymethamphetamine (MDMA) remains one of the most commonly used recreational drugs in Europe. Monitoring of Emergency Department (ED) presentations with acute toxicity associated with MDMA is important to determine trends in MDMA use and harms. Data were extracted from the European Drug Emergencies Network (Euro-DEN) Plus database for all ED presentations with acute toxicity involving MDMA use, alone or in combination with other substances, between 1 January 2014 and 31 December 2017. Geographical distribution, time trends, patient demographics, clinical features, management and outcome were analysed. Out of 23,947 presentations, 2013 (8.4%) involved MDMA, used alone (88, 4.4%) or with other substances (1925, 95.6%). The proportion of MDMA presentations varied by country, from over 15% in France to less than 5% in Norway. For the 15 sentinel centres where data were available for all four years, MDMA-related presentations peaked in 2016 (10.4% versus 8.1% in 2015, p p = 0.0002). 1436 (71.3%) presentations involved males. Females were significantly younger than males (median 23 years, interquartile range, IQR, 20–27 years, versus median 25 years, IQR 21–30 years, p versus 43.9%, p = 0.02), were more frequently medically discharged directly from the ED (74.7% versus 62.4%, p = 0.03), and less frequently received sedation (43.5% versus 66.5%, p = 0.003). This large multicentre series of MDMA presentations to EDs showed geographical variation and changes in time trends and in patient demographics. Triangulation with data from complementary sources including seizures, prevalence of use and wastewater analysis, will enable a greater understanding of the public health implications of MDMA use in Europe.
Pseudosinella gineti Cassagnau 1955
Creators: name: Thibaud, Jean-Marc
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Collembola
Entomobryomorpha
Entomobryidae
Pseudosinella
Pseudosinella gineti

description: Pseudosinella gineti Cassagnau, 1955 **
Pseudosinella gineti Cassagnau, 1955a: 39.
DISTRIBUTION. — Drôme. Grottede Barmechenelle (Gisin 1963). Isère. Grottes du Pré de l’Étang à Presles et d’Herbouilly à Saint- Martin-en-Vercors (Cassagnau 1955a; Ginet 1961). — Grottesdu Coufin, de la Croix Perrin et du Favot (Gisin 1963).
TAXONOMIE. — Gisin 1963 (redescription).
description: Published as part of Thibaud, Jean-Marc, 2017, Catalogue des collemboles de France, pp. 297-436 in Zoosystema 39 (3) on page 390, DOI: 10.5252/z2017n3a1, http://zenodo.org/record/5496272
ReluDiff: Differential Verification of Deep Neural Networks
Creators: name: Paulsen, Brandon
name: Wang, Jingbo
name: Wang, Chao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Logic in Computer Science (cs.LO)
subject: Software Engineering (cs.SE)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: As deep neural networks are increasingly being deployed in practice, their efficiency has become an important issue. While there are compression techniques for reducing the network's size, energy consumption and computational requirement, they only demonstrate empirically that there is no loss of accuracy, but lack formal guarantees of the compressed network, e.g., in the presence of adversarial examples. Existing verification techniques such as Reluplex, ReluVal, and DeepPoly provide formal guarantees, but they are designed for analyzing a single network instead of the relationship between two networks. To fill the gap, we develop a new method for differential verification of two closely related networks. Our method consists of a fast but approximate forward interval analysis pass followed by a backward pass that iteratively refines the approximation until the desired property is verified. We have two main innovations. During the forward pass, we exploit structural and behavioral similarities of the two networks to more accurately bound the difference between the output neurons of the two networks. Then in the backward pass, we leverage the gradient differences to more accurately compute the most beneficial refinement. Our experiments show that, compared to state-of-the-art verification tools, our method can achieve orders-of-magnitude speedup and prove many more properties than existing tools.
description: Extended version of ICSE 2020 paper. This version includes an appendix with proofs for some of the content in section 4.3
The effects of chitosan supplementation on body weight and body composition: a systematic review and meta-analysis of randomized controlled trials
Creators: name: Huang, Haohai
name: Liao, Dan
name: Zou, Ying
name: Chi, Honggang
Publisher: name: Taylor & Francis
Year: 2019
Subjects: Pharmacology
Biotechnology
Chemical Sciences not elsewhere classified
Science Policy
Cardiology

description: Although several clinical trials studied the efficacy of chitosan on weight loss, controversial results have been found. Herein, we evaluated randomized controlled trials (RCTs) of chitosan consumption in adult participants on body weight and body composition through a meta-analysis with trial sequential analysis (TSA). We searched EMBASE, MEDLINE, Web of Science, and CENTRAL databases. The primary body composition indices including body weight, body mass index (BMI), waist circumference, body fat, and hip circumference were extracted. The quality of included articles was assessed according to the Cochrane risk of bias tool. Data were pooled using the random-effects models and calculated as weighted mean difference (WMD) with 95% confidence intervals (CI). Heterogeneity investigated using I2 statistics. TSA, subgroup analyses, sensitivity analysis, meta-regression and publication bias were also evaluated. Overall, 15 eligible trials (18 treatment arms) with 1130 subjects were included. The pooled analyses revealed a significant reduction in body weight (WMD, −0.89 kg; 95% CI, −1.41 to −0.38; P = 0.0006), BMI (WMD, −0.39 kg/m2; 95% CI, −0.64 to −0.14; P = 0.002) and body fat (WMD, −0.69%; 95% CI, −1.02 to −0.35; P = 0.0001) receiving chitosan supplementation. Subgroup analyses also showed that consuming chitosan in dose (>2.4 g/d), shorter-term (<12 weeks), studies with parallel design and studies including participants with obese or overweight had positive effects on body composition. TSA provided conclusive evidence for the benefit of chitosan supplementation. Our findings provided evidence that chitosan consumption might be a useful adjunctive pharmacological therapeutic tool for body weight management particularly in overweight/obese participants. Further well-constructed clinical trials that target body weight and body composition as their primary outcomes are needed.
Dieta Frauke SVOBODA-BAAS, Kultlandschaften. Räumliche Organisation in Heiligtümern Lukaniens des 4. und 3. Jhs. v. Chr.
Creators: name: Franceschini, Mariachiara
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2022

description: Rezension zu: Dieta Frauke Svoboda-Baas, Kultlandschaften. Räumliche Organisation in Heiligtümern Lukaniens des 4. und 3. Jhs. v. Chr. Tübinger archäologische Forschungen Bd. 27. Rahden/Westf.: Verlag Marie Leidorf 2019, X + 233 S., EUR 59,80. ISBN: 978-3-89646-918-2
description: Göttinger Forum für Altertumswissenschaft, Bd. 24 Nr. 1 (2021): Göttinger Forum für Altertumswissenschaft
Magnetic imaging of antiferromagnetic domain walls
Creators: name: Sass, Paul M.
name: Ge, Wenbo
name: Yan, Jiaqiang
name: Obeysekera, D.
name: Yang, J. J
name: Wu, Weida
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The control of domain walls or spin textures is crucial for spintronic applications of antiferromagnets. Despite many efforts, it has been challenging to directly visualize antiferromagnetic domains or domain walls with nanoscale resolution, especially in magnetic field. Here, we report magnetic imaging of domain walls in several uniaxial antiferromagnets, the topological insulator MnBi$_2$Te$_4$ family and the Dirac semimetal EuMnBi$_2$, using cryogenic magnetic force microscopy (MFM). Our MFM results reveal higher magnetic susceptibility or net moments inside the domain walls than in domains. Domain walls in these antiferromagnets form randomly with strong thermal and magnetic field dependences. The direct visualization of domain walls and domain structure in magnetic field will not only facilitate the exploration of intrinsic phenomena in topological antiferromagnets, but also open a new path toward control and manipulation of domain walls or spin textures in functional antiferromagnets.
description: 14 pages, 4 figures
Aplicación de los métodos mixtos en contextos de investigación educativos
Creators: name: Rodas, Jhon Jairo Mosquera
Publisher: name: figshare
Year: 2021
Subjects: Education

description: La investigación presenta una descripción general de los hallazgos en materia de la importancia del método mixto de investigación, en función del sustento filosófico de este tipo de métodos, teniendo en cuenta semejanzas y diferencias al ser aplicado en investigaciones realizadas, teniendo como centro metodológico, al método mixto en contextos educativos que admitan este tipo de enfoque.
A New Procedure for the Photometric Parallax Estimation
Creators: name: Karaali, S.
name: Karatas, Y.
name: Bilir, S.
name: Ak, S.
name: Hamzaoglu, E.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a new procedure for photometric parallax estimation. The data for 1236 stars provide calibrations between the absolute magnitude offset from the Hyades main-sequence and the UV-excess for different (B-V)o colour-index intervals, i.e.: (0.3 0.4), (0.4 0.5), (0.5 0.6), (0.6 0.7), (0.7 0.8), (0.8 0.9), (0.9 1.0), and (1.0 1.1). The mean difference between the original and estimated absolute magnitudes and the corresponding standard deviation are rather small, +0.0002 and +/-0.0613 mag. The procedure has been adapted to the Sloan photometry by means of colour equations and applied to a set of artificial stars with different metallicity. The comparison of the absolute magnitudes estimated by the new procedure and the canonical one indicates that a single colour-magnitude diagram does not supply reliable absolute magnitudes for stars with large range of metallicity.
description: 26 pages, including 12 tables and 6 figures, accepted for publication in PASA
Pseudosinella heteromurina Stach 1929
Creators: name: Thibaud, Jean-Marc
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Collembola
Entomobryomorpha
Entomobryidae
Pseudosinella
Pseudosinella heteromurina

description: Pseudosinella heteromurina Stach, 1929
Pseudosinella heteromurina Stach, 1929: 295.
DISTRIBUTION. — Vaucluse. Grottedu Saint-Sépulcre (Vedovini 1968).
description: Published as part of Thibaud, Jean-Marc, 2017, Catalogue des collemboles de France, pp. 297-436 in Zoosystema 39 (3) on page 391, DOI: 10.5252/z2017n3a1, http://zenodo.org/record/5496272