cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Biomedical Applications of Manganese Nanocomposites.pdf
Creators: name: D, Nagajothi
Publisher: name: figshare
Year: 2020
Subjects: subject: 100703 Nanobiotechnology
subject: FOS: Nanotechnology
subject: 100708 Nanomaterials
subject: 100709 Nanomedicine

description: Last few decades Manganese nanocomposites have superior optical, electrical, catalytic, magnetic and electrochemical properties, so these are utilized for wide applications in Catalysis, ion exchange, and energy storage. This reviewmainly concentrates in biomedical applications of Manganese nanocomposites like image processing, drug delivery, MRI, cancer theranostics.
A Fundamental Plane Relation for the X-Ray Gas in Normal Elliptical Galaxies
Creators: name: Diehl, Steven
name: Statler, Thomas S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on the discovery of a new correlation between global parameters of the hot interstellar gas in elliptical galaxies. We reanalyze archival Chandra data for 30 normal early-type systems, removing the contributions of resolved and unresolved point sources to reveal the X-ray morphology of the hot gas. We determine the half-light radius, R_X, and the mean surface brightness, I_X, from the gas surface brightness profiles. A spectral analysis determines the temperature, T_X, of the gas within 3 optical effective radii. We find that the galaxies lie on an X-ray Gas Fundamental Plane (XGFP) of the form T_X ~ R_X^{0.28} I_X^{0.22}. This is close to, but distinct from, a simple luminosity-temperature relation. The intrinsic width of the XGFP is only 0.07dex, nearly identical to that of the stellar (optical) fundamental plane (SFP). This is surprising since X-ray gas masses are typically ~10^{-2} of the stellar masses. We show that the XGFP is not a simple consequence of the virial theorem or hydrostatic equilibrium, and that it is essentially independent of the SFP. The XGFP thus represents a genuinely new constraint on the hydrodynamical evolution of elliptical galaxies.
description: Astrophysical Journal Letters, accepted
Direct Observation of Long-Term Durability of Superconductivity in YBa$_2$Cu$_3$O$_7$-Ag$_2$O Composites
Creators: name: Lin, Juhn-Jong
name: Lin, Yong-Han
name: Huang, Shiu-Ming
name: Lee, Tsang-Chou
name: Chen, Teng-Ming
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report direct observation of long-term durability of superconductivity of several YBa$_2$Cu$_3$O$_7$-Ag$_2$O composites that were first prepared and studied almost 14 years ago [J. J. Lin {\it et al}., Jpn. J. Appl. Phys. {\bf 29}, 497 (1990)]. Remeasurements performed recently on both resistances and magnetizations indicate a sharp critical transition temperature at 91 K. We also find that such long-term environmental stability of high-temperature superconductivity can only be achieved in YBa$_2$Cu$_3$O$_7$ with Ag$_2$O addition, but not with pure Ag addition.
description: to be published in Jpn. J. Appl. Phys
title: Under the syndicate raj: criminalization and protection in a Muslim community in New Town, Kolkata
Creators: name: Arnavas, Chiara
Publisher: name: London School of Economics and Political Science (LSE)
Year: 2022

description: Syndicates play a central role in the construction industry of peri-urban Kolkata: small cartels for the provision of sand, stones, and bricks, they are often presented as mafia-like organisations by the national media. Stereotyped representations of gangsters and bosses, however, overlook the social mechanisms at the heart of the syndicates, namely, criminalization and protection. Based on 18 months of ethnographic fieldwork in the rapidly urbanising periphery of Kolkata, this thesis explains the importance of criminalization and protection for the functioning of the ‘syndicate raj’, that is, the rule of syndicates. The chapters of the dissertation examine the experiences of low-class Muslim villagers, who are at the bottom of the syndicate hierarchy. Their work in the lower ranks of the syndicates is criminalised both by Hindu neighbours and by local state authorities. Muslim villagers, however, are sometimes able to turn criminalization to their own purposes: either by emphasising how syndicate work is deeply intertwined with family, kinship, and local community; or by carefully using such external labels when dealing with residents, workers, and government officials. In engaging with syndicate work, Muslim villagers don’t simply pursue their individual interests at the cost of kinship ties and family values. Instead, they try to justify their work in moral terms and build ethical projects for their families. Low-level syndicate workers are embedded in networks of state protection that they perceive as coercive and precarious. Muslim villagers become the risk-bearers of extortion practices, as they perform a visible criminal persona and face arrests, social stigma and exclusion from profits. The public criminalization of Muslim workers at the bottom of the syndicate hierarchy thus occludes inner mechanisms of coercive protection and precarious cheap labour, which reproduce inequalities between common people and wealthy politicians.
Chain-induced effects in the Faraday instability on ferrofluids in a horizontal magnetic field
Creators: name: Mekhonoshin, V. V.
name: Lange, Adrian
Publisher: name: arXiv
Year: 2004
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The linear stability analysis of the Faraday instability on a viscous ferrofluid in a horizontal magnetic field is performed. Strong dipole-dipole interactions lead to the formation of chains elongated in the field direction. The formation of chains results in a qualitative new behaviour of the ferrofluid. This new behaviour is characterized by a neutral stability curve similar to that observed earlier for Maxwell viscoelastic liquids and causes a significant weakening of the energy dissipation at high frequencies. In the case of a ferrofluid with chains in a horizontal magnetic field, the effective viscosity is anisotropic and depends on the field strength as well as on the wave frequency.
description: 12 pages, 11 figures
Local Spin Polarization in 200 GeV Au+Au and 2.76 TeV Pb+Pb Collisions
Creators: name: Wu, Hong-Zhong
name: Pang, Long-Gang
name: Huang, Xu-Guang
name: Wang, Qun
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculated the azimuthal angle dependence of the local spin polarization of hyperons in 200 GeV Au+Au and 2.76 TeV Pb+Pb collisions in the framework of the (3+1)D viscous hydrodynamic model CLVisc with AMPT initial conditions encoding initial orbital angular momenta. We find that the azimuthal angle dependence of the hyperon polarization strongly depends on the choice of the spin chemical potential $Ω_{μν}$. With $Ω_{μν}$ chosen to be proportional to the temperature vorticity, our simulation shows coincidental results with the recent measurements at RHIC.
description: Contribution to the Proceedings of the 28th international conference on ultrarelativistic nucleus-nucleus collisions (Quark Matter 2019)
Enhancement of Tc by Sr substitution for Ba in Hg-2212 superconductor
Creators: name: Toulemonde, P.
name: Odier, P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The Ba substitution by Sr has been studied in two Hg-2212 series: Hg2(Ba(1-y)Sr(y))2YCu2O8-d and Hg2(Ba(1-y)Sr(y))2(Y0.80Ca0.20)Cu2O8-d. In both series a Tc enhancement of about 40 K is observed when Sr substitutes Ba from y = 0 to y = 1.0. The y = 0 compound of the first series is the non superconducting Hg2Ba2YCu2O8-d prototype. In the second series, this y = 0 compound is already superconducting at 21 K. Indeed the members of this series present a higher charge carrier density in their CuO2 superconducting planes than their homologues of the first series due to the doping introduced by the substitution of 20% of Y by Ca. The compounds of both series were synthesized in high pressure (3.5 GPa) - high temperature (950 - 1050C) conditions. In both cases Sr substitution was successful up to the full replacement of Ba (y = 1.0). The Hg-2212 phases were characterized by XRD, SEM, EDX and a.c. susceptibility.
description: 14 pages, 7 figures, accepted for publication in Physica C
Dirac Equation in Standard Cosmological Models
Creators: name: Sharif, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The time equation associated to the Dirac Equation (DE) is studied for the radiation-dominated Friedmann-Robertson-Walker (FRW) universe. The results are analysed for small and large values of time. We also incorporate the corrections of the paper studied by Zecca [1] for the matter-dominated FRW universe.
A Graphical Method for Comparing Response-Adaptive Randomization Procedures
Creators: name: Flournoy, Nancy
name: Haines, Linda M.
name: Rosenberger, William F.
Publisher: name: American University
Year: 2023

description: Response-adaptive randomization procedures have a dual goal of estimating the treatment effect and randomizing patients with a higher probability of receiving the superior treatment. These are competing objectives, and no procedure in the literature is “perfect” with respect to both objectives. For clinical trials of two treatments, we discuss metrics for comparing response-adaptive randomization procedures that can be represented graphically to compare designs. These metrics involve the simulated distribution of the set of jointly sufficient statistics for estimating functions of the unknown parameters. We explore the binary response and normal cases, and compare numerous procedures found in the literature. We distinguish between metrics of efficiency and metrics that measure ethical cost. Each of these is a function of the joint sufficient statistics. When graphed against each other, we can gauge competing designs in obtaining these competing objectives. We find that, contrary to asymptotic results, tuning parameters that affect the variability of the procedure do not have much impact in the finite case. We also find that procedures that target an optimal allocation based on ethical and efficiency considerations generally provide a better compromise design than procedures that do not.
title: Freelance Language Teachers' Professional Development On ... And With ... And Through Twitter
Creators: name: Emke, Martina
Publisher: name: The Open University
Year: 2019

description: In recent years more and more freelance teachers have been employed in higher education and in further education, and they often struggle with barriers to professional development. Freelance language teachers are understood to work within various (self-) employment situations, often across educational sectors. For these teachers, access to professional development can be particularly challenging. Previous research has suggested that teachers’ use of the social media platform Twitter could lead to effective professional development (Carpenter & Krutka, 2014) and foster the formation of community among language educators (Wesely, 2013; Lord & Lomicka, 2014). Twitter is an Internet platform which enables registered users to communicate via text messages (tweets). While phenomenological research approaches have provided valuable insight into human experiences and perceptions of Twitter for professional learning, they tend to overlook the relational, human and non-human complexities involved (with)in the enactment of human practices. Drawing on the Deleuzo-Guattarian concepts of rhizome, assemblage and becoming (Deleuze & Guattari, 1987), this doctoral research seeks to provide answers to questions concerning how language teachers’ professional development on…and with…and through Twitter works and what it produces. Research data included online narrative frame questionnaires, tweets and online participant interviews. Data enquiry involved the working(s)-together of situational maps (Clarke, 2005) and social network analysis (Newman, 2010). This research suggests professional development and language teaching can be conceived of as entangled practices within human and non-human assemblages, which have the capability to produce unpredictable becomings, rather than as two distinct elements of a binary relationship. Recommendations from this investigation aim to make language educators, language education providers and education policy aware of the relational workings of social media practices, and to provide concrete suggestions for actions that connect with existing practices and programmes to improve freelance language teachers’ professional development.
title: EU Twinning Projects in Serbia:  Analysis of Policy Areas and the  Influence of Member States
Creators: name: Jovanović, Aleksandra
name: Fitsilis, Fotios
Publisher: name: Universität Graz
Year: 2021

description: This article examines the developments around the application of the
Twinning modality in Serbia, from 2004 to 2019, its sectoral distribution
and impact, and the frequency of EU member states’ participation. Besides
providing an accurate state-of-play, it attempts, for the first time in the
literature, to map the influence of member states in Serbia’s EU accession
process through their participation in Twinning projects. Findings show
that, in the given period, more than half of the Twinning projects dealt with
the justice and home affairs and agriculture policy areas. This is in line with
the importance attributed to those sectors in EU and Serbian strategic
documents. The article focuses on a macro-analysis of such projects in
Serbia, revitalising their link with the wider Europeanisation process. More
specifically, the identification of specific aspects of the Europeanisation
process takes place through Radaelli’s approach. Furthermore, political and
economic relations between Serbia and EU member states, which are
viewed as Europeanisation facilitating factors and goals, are also discussed,
e.g. through bilateral trade and the influx of Foreign Direct Investments.

description: Keywords: EU accession, Twinning projects, Serbia, Europeanisation,
economic relations
description: Contemporary Southeastern Europe, 2021, 8(1), 67-93
Isolate record for VAFB-ISO-817
Creators: name: Holloway, Corinne
Year: 1900
Subjects: subject: Santa Barbara (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/3486/santa-barbara-county
subject: Vandenberg Air Force Base (VAFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85469/vandenberg-air-force-base-vafb
subject: Vandenberg Space Force Base (VSFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85584/vandenberg-space-force-base-vsfb
subject: California (State / Territory)
valueUri: https://core.tdar.org/browse/geographic-keyword/1484/california-state-territory
subject: Chipped Stone
valueUri: https://core.tdar.org/browse/material-type/2/chipped-stone
subject: Reconnaissance / Survey
valueUri: https://core.tdar.org/browse/investigation-type/7/reconnaissance-survey

description: This document is the isolated find record for VAFB-ISO-817. The artifact is a primary flake.
A complete identification of lithium sites in a model of LiPO$_3$ glass: effects of the local structure and energy landscape on ionic jump dynamics
Creators: name: Vogel, Michael
Publisher: name: arXiv
Year: 2004
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We perform molecular dynamics simulations to study lithium dynamics in a model of LiPO$_3$ glass at temperatures below the glass transition. A straightforward analysis of the ionic trajectories shows that lithium diffusion results from jumps between sites that are basically unmodified on the time scale of the lithium ionic relaxation. This allows us a detailed identification and characterization of the sites. The results indicate that the number of lithium sites is only slightly bigger than the number of lithium ions so that the fraction of vacant sites is very limited at every instant. Mapping the ionic trajectories onto series of jumps between the sites provides direct access to lithium jump dynamics. For each site, we determine the mean residence time $τ_s$ and the probability $p_s^b$ that a jump from this site to another site is followed by a direct backjump. While a broad distribution $G(\lg τ_s)$ shows that different sites feature diverse lithium dynamics, high values of $p_s^b$ give direct evidence for back-and-forth jumps. We further study how the local glass structure and the local energy landscape affect lithium jump dynamics. We observe substantial effects due to the energy landscape, which are difficult to capture within single-particle approaches.
description: 10 pages, 8 figures
Inference on a new sigmoid regression model with unknown support and unbounded likelihood function
Creators: name: Wang, HaiYing
name: Flournoy, Nancy
Publisher: name: American University
Year: 2023

description: In this paper we introduce a non-regular sigmoid shape regression model with boundaries of support for the response variable being two unknown parameters; the likelihood function is unbounded, for which the global maximizers are not consistent estimators. Although the two sample extremes, the smallest and the largest observations, are consistent estimators of the two unknown boundaries, they have slow convergence rate and are asymptotically biased. Improved estimators are developed by correcting for the asymptotic biases of the two sample extremes for the one sample case; but these proposed estimators do not obtain the optimal convergence rate either. To obtain efficient estimation, we resort to the local maximizers of the likelihood function, i.e., the solution to the likelihood equations that is obtained by setting to zero the gradient of the log-likelihood function with respect to the parameters. We prove that, with probability approaching one as the sample size goes to infinity, there exists a solution to the likelihood equation that is consistent at the rate of the square root of the sample size and it is asymptotically normally distributed.
Inference on a new sigmoid regression model with unknown support and unbounded likelihood function
Creators: name: Wang, HaiYing
name: Flournoy, Nancy
Publisher: name: Department of Statistics, University of Missouri
Year: 2023
Subjects: classificationCode: 4905
subject: Statistics
subject: FOS: Mathematics

description: In this paper we introduce a non-regular sigmoid shape regression model with boundaries of support for the response variable being two unknown parameters; the likelihood function is unbounded, for which the global maximizers are not consistent estimators. Although the two sample extremes, the smallest and the largest observations, are consistent estimators of the two unknown boundaries, they have slow convergence rate and are asymptotically biased. Improved estimators are developed by correcting for the asymptotic biases of the two sample extremes for the one sample case; but these proposed estimators do not obtain the optimal convergence rate either. To obtain efficient estimation, we resort to the local maximizers of the likelihood function, i.e., the solution to the likelihood equations that is obtained by setting to zero the gradient of the log-likelihood function with respect to the parameters. We prove that, with probability approaching one as the sample size goes to infinity, there exists a solution to the likelihood equation that is consistent at the rate of the square root of the sample size and it is asymptotically normally distributed.
The analytic index for proper, Lie groupoid actions
Creators: name: Paterson, Alan L. T.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Operator Algebras (math.OA)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: 19K35;46L80

description: Many index theorems (both classical and in noncommutative geometry) can be interpreted in terms of a Lie groupoid acting properly on a manifold and leaving an elliptic family of pseudodifferential operators invariant. Alain Connes in his book raised the question of an index theorem in this general context. In this paper, an analytic index for many such situations is constructed. The approach is inspired by the classical families theorem of Atiyah and Singer, and the proof generalizes, to the case of proper Lie groupoid actions, some of the results proved for proper locally compact group actions by N. C. Phillips.
Meditative Museum Texts & Allegorical Artefacts: A Curatorial Investigation into the Strategies of a Documentary-Fiction Film-Essay as a Source of Innovative Approaches to the Interpretation and Narration of Artefacts in the History Museum.
Creators: name: Eaton, Tom
Publisher: name: University of Leicester
Year: 2024
Subjects: Uncategorized

description: This thesis undertakes a case study analysis of Patrick Keiller’s documentary-fiction film-essay London (1994) from a curatorial perspective, in order to explore how the film’s narrative strategies open up new avenues for thinking about the interpretation of artefacts in the history museum. The in-depth case study analysis of Keiller’s London – looking to the film’s use of narrator as an ‘observational witness’ that passes down second-hand the observations of the film’s larger than life ‘distant’ protagonist, the fusion of ambient story narrative and structures of the essay form, the presencing of characters absent from screen through ‘empty stage’ city landscape shots, and the use of footage of everyday city space as an expressive allegorical setting for the cultural commentary relayed by the protagonist – generates a critical discussion about how the film’s strategies resonate with and challenge existing approaches to interpretation and display in the history museum and at heritage sites. The potential for innovation suggested by the film’s strategies is assessed in a short interpretive exercise. This exercise has been designed to test the film’s formal devices on a particular type of historical artefact – the topographic artwork – using items from the collection at the National Library of Wales. The interpretive exercise is followed by a critical analysis of the adaptation of the film’s strategies to the interpretation of the topographic artworks, and their perceived potential for constructive application to a history museum learning experience. Whilst engaging closely with perspectives from across disciplines in the analysis of Keiller’s film, and drawing upon various types of scholarship to give an account of the visual character of the topographic genre, the thesis intends to make its central research contribution to discussions within the field of innovative museum design and learning experience.
Understanding and Mitigating Biases when Studying Inhomogeneous Emission Spectra with JWST
Creators: name: Taylor, Jake
name: Parmentier, Vivien
name: Irwin, Patrick G. J.
name: Aigrain, Suzanne
name: Lee, Elspeth K. H.
name: Krissansen-Totton, Joshua
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Exoplanet emission spectra are often modelled assuming that the hemisphere observed is well represented by a horizontally homogenised atmosphere. However this approximation will likely fail for planets with a large temperature contrast in the James Webb Space Telescope (JWST) era, potentially leading to erroneous interpretations of spectra. We first develop an analytic formulation to quantify the signal-to-noise ratio and wavelength coverage necessary to disentangle temperature inhomogeneities from a hemispherically averaged spectrum. We find that for a given signal-to-noise ratio, observations at shorter wavelengths are better at detecting the presence of inhomogeneities. We then determine why the presence of an inhomogeneous thermal structure can lead to spurious molecular detections when assuming a fully homogenised planet in the retrieval process. Finally, we quantify more precisely the potential biases by modelling a suite of hot Jupiter spectra, varying the spatial contributions of a hot and a cold region, as would be observed by the different instruments of JWST/NIRSpec. We then retrieve the abundances and temperature profiles from the synthetic observations. We find that in most cases, assuming a homogeneous thermal structure when retrieving the atmospheric chemistry leads to biased results, and spurious molecular detection. Explicitly modelling the data using two profiles avoids these biases, and is statistically supported provided the wavelength coverage is wide enough, and crucially also spanning shorter wavelengths. For the high contrast used here, a single profile with a dilution factor performs as well as the two-profile case, with only one additional parameter compared to the 1-D approach.
description: Accepted for publication by MNRAS
q-deformed Fermions
Creators: name: Swamy, P. Narayana
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This is a study of $q$-Fermions arising from a q-deformed algebra of harmonic oscillators. Two distinct algebras will be investigated. Employing the first algebra, the Fock states are constructed for the generalized Fermions obeying Pauli exclusion principle. The distribution function and other thermodynamic properties such as the internal energy and entropy are derived. Another generalization of fermions from a different q-deformed algebra is investigated which deals with q-fermions not obeying the exclusion principle. Fock states are constructed for this system. The basic numbers appropriate for this system are determined as a direct consequence of the algebra. We also establish the Jackson Derivative, which is required for the q-calculus needed to describe these generalized Fermions.
description: 10 pages, Revtex format
Multivariate Optimizing Up and Down Design
Creators: name: Shara, Nawar M.
name: Flournoy, Nancy
Publisher: name: University of Missouri and Medstar Research Institute
Year: 2023
Subjects: classificationCode: 4905
subject: Statistics
subject: FOS: Mathematics

description: Suppose we are interested in finding the optimal dose of two drugs (for example, Tylenol and Aspirin), that is, we are interested in determining the dose combination that maximizes the probability of patients’ success. We assume responses are binary, either failure or success, and that the treatments to be used in the study are selected from a lattice of combination drugs. We extend the univariate Optimizing Up-and-Down Design of Kpamegan (2001), using ideas from stochastic approximation, in a way that the number of subjects at each stage is independent of the number of predictor variables (e.g. drugs).
Isolate record for VAFB-ISO-879
Creators: name: Holloway, Corinne
Year: 1900
Subjects: subject: Santa Barbara (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/3486/santa-barbara-county
subject: Vandenberg Air Force Base (VAFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85469/vandenberg-air-force-base-vafb
subject: Vandenberg Space Force Base (VSFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85584/vandenberg-space-force-base-vsfb
subject: California (State / Territory)
valueUri: https://core.tdar.org/browse/geographic-keyword/1484/california-state-territory
subject: Chipped Stone
valueUri: https://core.tdar.org/browse/material-type/2/chipped-stone
subject: Reconnaissance / Survey
valueUri: https://core.tdar.org/browse/investigation-type/7/reconnaissance-survey

description: This document is the isolated find record for VAFB-ISO-879. The artifact is a biface fragment.
In vitro efficacy of the lipopeptide biosurfactant surfactin-C15 and its complexes with divalent counterions to inhibit Candida albicans biofilm and hyphal formation
Creators: name: Janek, Tomasz
name: Drzymała, Katarzyna
name: Dobrowolski, Adam
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 20199 Astronomical and Space Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: 69999 Biological Sciences not elsewhere classified

description: Surfactin is a type of cyclic lipopeptide biosurfactant implicated in a wide range of applications. Although its antimicrobial activity has been characterized, its effect on Candida albicans physiology remains to be elucidated. The present study evaluated the influence of surfactin-C15 (SF) and its complexes with divalent counterions on C. albicans biofilm formation and preformed biofilms. The SF and metal(II)-SF complexes inhibited biofilm formation and reduced the metabolic activity of mature biofilms in a concentration-dependent manner. The same concentrations of the compounds studied dislodged preexisting biofilms grown on polystyrene plates. Moreover, SF and its metal(II) complexes reduced the mRNA expression of hypha-specific genes HWP1, ALS1, ALS3, ECE1 and SAP4 without exhibiting significant growth inhibition. Further research showed that the compounds tested reduced cellular surface hydrophobicity (CSH). These results suggest that SF and metal(II)-SF complexes could be used as anti-biofilm agents against C. albicans hypha-related infections in clinical practice.
Multivariate Optimizing Up and Down Design
Creators: name: Shara, Nawar M.
name: Flournoy, Nancy
Publisher: name: American University
Year: 2023

description: Suppose we are interested in finding the optimal dose of two drugs (for example, Tylenol and Aspirin), that is, we are interested in determining the dose combination that maximizes the probability of patients’ success. We assume responses are binary, either failure or success, and that the treatments to be used in the study are selected from a lattice of combination drugs. We extend the univariate Optimizing Up-and-Down Design of Kpamegan (2001), using ideas from stochastic approximation, in a way that the number of subjects at each stage is independent of the number of predictor variables (e.g. drugs).
Some implications of the introduction of scattered starlight in the spectrum of reddened stars
Creators: name: Zagury, Frederic
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This paper presents new investigations on coherent scattering in the forward direction (orders of magnitude; conservation of energy; dependence of scattered light on geometry and wavelength), and on how scattered light contamination in the spectrum of reddened stars is possibly related to as yet unexplained observations (the diminution of the 2200 A bump when the obscuring material is close to the star, the difference between Hipparcos and photometric distances). This paper then goes on to discuss the fit of the extinction curve, a possible role of extinction by the gas in the far-UV, and the reasons of the inadequacy of the Fitzpatrick and Massa [ApJSS, 72 (1990) 163] fit.
description: 39 pages, 11 figures. Improved version published in New Astronomy
The Channel as a Traffic Sensor: Vehicle Detection and Classification based on Radio Fingerprinting
Creators: name: Sliwa, Benjamin
name: Piatkowski, Niko
name: Wietfeld, Christian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Ubiquitously deployed Internet of Things (IoT)- based automatic vehicle classification systems will catalyze data-driven traffic flow optimization in future smart cities and will transform the road infrastructure itself into a dynamically sensing Cyber-physical System (CPS). Although a wide range of different traffic sensing systems has been proposed, the existing solutions are not yet able to simultaneously satisfy the multitude of requirements, e.g., accuracy, robustness, cost-efficiency, and privacy preservation. In this paper, we present a novel approach, which exploits radio fingerprints - multidimensional attenuation patterns of wireless signals - for accurate and robust vehicle detection and classification. The proposed system can be deployed in a highly cost-efficient manner as it relies on off-the-shelf embedded devices which are installed into existing delineator posts. In a comprehensive field evaluation campaign, the performance of the radio fingerprinting-based approach is analyzed within an experimental live deployment on a German highway, where it is able to achieve a binary classification success ratio of more than 99% and an overall accuracy of 93.83% for a classification task with seven different classes.
title: Resistance, reproduction, attachment : unsettling gender through cosplay
Creators: name: Birkedal, Katarina Helene Skouverøe
Publisher: name: University of St Andrews
Year: 2019

description: Most stories told in popular culture can be understood as being embedded in martial politics, or as militarised; as violent, gendered narratives that invest and are invested in normalising traditional normative social orders. Cosplay – a portmanteau of the words ‘costume’ and ‘play’ – is the act of dressing up as and imitating characters from popular culture, most commonly at fan conventions. The cosplayer becomes immersed in the narrative and the character. How, then, can we understand how the martial discourses of popular culture is enacted upon and by the body through cosplay? (How) can this enactment and embodiment be theorised as a form of resistance? What is the intersection between the desirability of these aesthetically gendered narratives, and the pleasure of the embodiment? These embodiments are often described as engendering a sense of liberation and empowerment in the cosplayer. I argue that the affective physicality of the performance of an-other, and the social legitimation of that performance, results in the cosplayer’s embodiment of those gendered aesthetics becoming a site of resistance. Furthermore, I argue that in this embodiment of an-other, the very notion of a stable self breaks apart, as the feeling-with the character engenders a reflexive dissonance that destabilises the dichotomy between self and other. In order to investigate this, I used autoethnography to observe the affects of this process on myself, as well as noting the behaviour and comments of others I encountered at fan conventions, and on online cosplay communities. I investigate this (re)appropriation of the hegemonic culturally produced desire for the gendered, militarised aesthetics by the core consumers of these aesthetic narratives, arguing that the cosplayer’s embodiment of militarised narratives becomes a form of what I term resistance within reproduction.
Gravitational Lensing in a Model of Nonlinear Electrodynamics: The case for electrically and magnetically charged compact objects
Creators: name: Gurtug, O.
name: Mangut, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This paper aims to investigate the astrophysical applicability of the electrically and magnetically charged black hole solutions obtained in a model of nonlinear electrodynamics proposed by Kruglov (Ann. Phys. Berlin 2017, 529, 170073). Theoretical calculations of the bending angles and gravitational redshifts from the theory of general relativity are studied numerically by using the stellar data of charged compact objects and a hypothetical quark star model. Calculations have revealed that although the theoretical outcomes differ from the linear Maxwell case, the plotted bending angles coincide with the linear case and it becomes hard to identify the effect of nonlinearity. However, the calculation of the redshift has shown that while the increase in the electric field leads to a decrease in the gravitational redshift,the presence of the strong magnetic field contributes to the gravitational redshift in an increasing manner.
description: 11 pages 8 figures, final version got acceptance from Annalen der Physik
Highly asymmetric optical properties of \b{eta}-Ga2O3 as probed by linear and nonlinear optical excitation spectroscopy
Creators: name: Cho, Jeong Bin
name: Jung, Gunwoo
name: Kim, Kyuheon
name: Kim, Jihun
name: Song, Jung-Hoon
name: Jang, Joon Ik
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Highly asymmetric optical properties of b-Ga2O3 are investigated by polarization-dependent photoluminescence (PL) excitation spectroscopy for assessing its potential use for a novel ultraviolet emitter and nonlinear optical material. Based on power-dependent excitation and two-photon depth scan, it is demonstrated that the underlying mechanism for the PL occurring far below the bandgap is not caused by intrinsic polaron effects, but by excitonic recombination at extrinsic defect sites.
description: 23 pages, 6 figures
title: 01_0361
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Accurate correction of arbitrary spin fermions quantum tunneling from non-stationary Kerr-de Sitter black hole based on corrected Lorentz dispersion relation
Creators: name: Sha, Bei
name: Liu, Zhi-E
name: Liu, Yu-Zhen
name: Tan, Xia
name: Zhang, Jie
name: Yang, Shu-Zheng
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: According to a corrected dispersion relation proposed in the study on string theory and quantum gravity theory, Rarita-Schwinger equation has been precisely modified, which results in a Rarita-Schwinger-Hamilton-Jacobi equation, and through which, the characteristics of arbitrary spin fermions quantum tunneling radiation from non-stationary Kerr-de Sitter black hole are researched. A series of accurately corrected physical quantities such as surface gravity, chemical potential, tunneling probability and Hawking temperature that describe the properties of the black hole are derived. This research has enriched the research methods and made precision of the research contents of black hole physics.
description: 8 pages
A new tool for comparing adaptive designs; a posteriori efficiency
Creators: name: Moler, Jose A.
name: Flournoy, Nancy
Publisher: name: American University
Year: 2023

description: In this work, we consider an adaptive linear regression model designed to explain the patient’s response in a clinical trial. Patients are assumed to arrive sequentially. The adaptive nature of this statistical model allows the error terms to depend on the past which has not been permitted in other adaptive models in the literature. Some techniques of the theory of optimal designs are used in this framework to define new concepts: a-posteriori efficiency and mean a-posteriori efficiency. We then explicitly relate the variance of the allocation rule to the mean a-posteriori efficiency. These measures are useful for studying the comparative performance of adaptive designs. As an example, a comparative study is made among several design- adaptive designs to establish their properties with respect to a criterion of interest.
A new tool for comparing adaptive designs; a posteriori efficiency
Creators: name: Moler, Jose A.
name: Flournoy, Nancy
Publisher: name: University of Missouri, and Universidad Pu ́blicade Navarra in Spain
Year: 2023
Subjects: classificationCode: 4905
subject: Statistics
subject: FOS: Mathematics

description: In this work, we consider an adaptive linear regression model designed to explain the patient’s response in a clinical trial. Patients are assumed to arrive sequentially. The adaptive nature of this statistical model allows the error terms to depend on the past which has not been permitted in other adaptive models in the literature. Some techniques of the theory of optimal designs are used in this framework to define new concepts: a-posteriori efficiency and mean a-posteriori efficiency. We then explicitly relate the variance of the allocation rule to the mean a-posteriori efficiency. These measures are useful for studying the comparative performance of adaptive designs. As an example, a comparative study is made among several design- adaptive designs to establish their properties with respect to a criterion of interest.
title: Rio, City of Ghettos: A Study of the Impact of Violence on the Urban Form
Creators: name: Soveral, Thiago Tavares Abranches de
Publisher: name: The Open University
Year: 2019

description: This thesis focuses on the impact of violence on urban form in Rio de Janeiro, showing how violence is spatialised. It shows how urban design reinforces segregation and how this segregation reinforces urban violence. The research conducted includes a historiographical analysis of the context in which irregular settlements were born, developed and consolidated in the city of Rio over 100 years, later giving rise to the favelas. The shifts in social values over time are identified, showing the favelas’ association as territories of violence. The research also focused on the invisibility of the favela in the city’s cartographic production. The analysis of case studies discusses the growing ghettoization that emerges from the spatial strategies adopted by the urban planning secretariat, administrative decisions and, finally, urban planning plans, which reinforce a ghetto logic. This analysis identifies a convergence between the gated community model (ghettos of security) and the favelas (ghettos of violence). The comparative analysis of these territories with opposing characteristics reveals the structural limitations that reinforce their transformation into ghettos, following a logic of segregation, both created irregularly, in the margin of the current regulations. Both show an accelerated growth process in the last decades, contributing to the fragmentation of the common urban space into closed spaces, inhabited by socio-cultural and economically homogeneous social groups, losing the form of a city. This research has shown that the concept of gated communities has been changing in Rio, and today, gated communities require a redefinition. Fortified enclaves are proliferating in Rio, driven by a culture of fear. This urban ghettoization is therefore a concern for architects, urban planners, policymakers and inhabitants, especially in the context of Rio—a city defined by urban violence for more than half a century. The research shows the need for urgent intervention through urban design for the city of Rio. However, these transformations will only happen through the redesign of regulatory frameworks.
SIXTE Simulations of the Perseus Cluster
Creators: name: Dauner, Lea
name: Lorenz, Maximilian
name: Kirsch, Christian
name: König, Ole
name: Dauser, Thomas
name: Wilms, Jörn
name: Sanders, Jeremy
Publisher: name: Zenodo
Year: 2022
Subjects: SIXTE
Simulator
Athena
WFI
X-IFU

description: The SIXTE end-to-end simulator for X-ray astronomical instrument is fast and precise. SIXTE allows to model observations of X-ray sources with various instruments, including the WFI and the X-IFU, but also missions such as XMM-Newton or XRISM. With comparably little simulation time, SIXTE permits to take into account important effects such as the spatially varying point spread function, vignetting, dithering observations, and nonlinear detector effects including photon pile-up for the WFI or crosstalk for the X-IFU. The resulting output is compatible with standard X-ray astronomy data reduction pipelines. Using the Perseus cluster as an example, we will discuss simulations focusing on Athena's capabilities to explore the hot and energetic universe by contrasting its capabilities with those of other missions, including XRISM.
Optimization of multiplexed single-photon sources operated with photon-number-resolving detectors
Creators: name: Bodog, Ferenc
name: Mechler, Matyas
name: Koniorczyk, Matyas
name: Adam, Peter
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Detectors inherently capable of resolving photon numbers have undergone a significant development recently, and this is expected to affect multiplexed periodic single-photon sources where such detectors can find their applications. We analyze various spatially and time-multiplexed periodic single-photon source arrangements with photon-number-resolving detectors, partly to identify the cases when they outperform those with threshold detectors. We develop a full statistical description of these arrangements in order to optimize such systems with respect to maximal single-photon probability, taking into account all relevant loss mechanisms. The model is suitable for the description of all spatial and time multiplexing schemes. Our detailed analysis of symmetric spatial multiplexing identifies a particular range of loss parameters in which the use of the new type of detectors leads to an improvement. Photon number resolution opens an additional possibility for optimizing the system in that the heralding strategy can be defined in terms of actual detected photon numbers. Our results show that this kind of optimization opens an additional parameter range of improved efficiency. Moreover, this higher efficiency can be achieved by using less multiplexed units, i.e., smaller system size as compared to threshold-detector schemes. We also extend our investigation to certain time-multiplexed schemes of actual experimental relevance. We find that the highest single-photon probability is 0.907 that can be achieved by binary bulk time multiplexers using photon-number-resolving detectors.