cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Theory of resonant multiphonon Raman scattering in graphene
Creators: name: Basko, D. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a detailed calculation of intensities of two-phonon and four-phonon Raman peaks in graphene. Writing the low-energy hamiltonian of the interaction of electrons with the crystal vibrations and the electromagnetic field from pure symmetry considerations, we describe the system in terms of just a few independent coupling constants, considered to be parameters of the theory. The electron scattering rate is introduced phenomenologically as another parameter. The results of the calculation are used to extract information about these parameters from the experimentally measured Raman peak intensities.
description: 49 pages, 25 figures
Dioscoridillo pubescens Taiti & Ferrara 2004
Creators: name: Taiti, Stefano
name: Checcucci, Ilaria
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Isopoda
Eubelidae
Dioscoridillo
Dioscoridillo pubescens

description: Dioscoridillo pubescens Taiti & Ferrara, 2004 Dioscoridillo pubescens Taiti & Ferrara, 2004: 308, figs 66, 67, pl. 30. Material examined. Socotra: 1 ♁, 1 ♀, Wadi Ayhaft, 12°36'54.5"N 53°57'26.5"E, ca. 100 m, left side, limestone, under stones, 19.I.2003, leg. S. Taiti, MZUF-9278. Distribution. Species endemic to Socotra Island.
description: Published as part of Taiti, Stefano & Checcucci, Ilaria, 2009, New species and records of terrestrial Isopoda (Crustacea, Oniscidea) from Socotra Island, Yemen, pp. 73-103 in ZooKeys 31 (3) on page 98, DOI: 10.3897/zookeys.31.140, http://zenodo.org/record/576582
description: {"references": ["Taiti S, Ferrara F (2004) The terrestrial Isopoda (Crustacea: Oniscidea) of the Socotra Archipelago. Fauna of Arabia 20: 211 - 325."]}
title: Developmental epigenetics in humans: Can maternal nutritional status mediate DNA methylation in their offspring?
Creators: name: Dominguez-Salas, P
Publisher: name: London School of Hygiene & Tropical Medicine
Year: 2013

description: Animal studies show that periconceptional maternal supplementation with nutrients involved in the provision of methyl-groups can alter DNA methylation patterns in the offspring. This thesis examines possible associations between maternal nutrition and offspring DNA methylation patterns in humans in the context of seasonal influences.  Two complementary studies were conducted in rural Gambia. The ‘indicator’ group enrolled 30 non-pregnant women and followed them monthly for one year, to measure dietary intakes and blood biomarker levels of choline, betaine, folate, methionine and vitamins B2, B6 and B12, as well as plasma homocysteine, S-adenosyl-methionine (SAM), S-adenosyl-homocysteine (SAH), cysteine and dimethylglycine (DMG). The ‘main’ group enrolled 136 mother-infant pairs, with infants conceived at the peak of the rainy (July to September) or dry (February to April) season. The same panel of blood biomarkers were measured on maternal samples collected early in pregnancy. In the infants, DNA methylation at seven metastable epialleles (MEs) was assessed.  Significant seasonal variation was observed within the indicator group for dietary intakes of choline, betaine, folate and B2 and all metabolic biomarkers. A possible change in dependence between the betaine and folate pathways between seasons was identified. Within the main group, a seasonal variation was observed in both maternal biomarker levels and infant DNA methylation. The rainy season was associated with a higher maternal SAM:SAH ratio, higher concentrations of most methyl-donors (folate, betaine and methionine) and cofactors (B2 and B6) and higher infant DNA methylation. DNA methylation at the MEs studied was associated with B2, cysteine and the SAM:SAH and DMG:betaine ratios, but not with the other biomarkers.  These data suggest that Gambian seasonality influences maternal methyl-group supply, which may be linked to DNA methylation patterns in offspring. Future work is required to confirm this observation, and understand precise mechanisms, so optimal nutrition at critical phases can be determined.
Detection of exchange interaction in STM measurements through Fanolike interference effects
Creators: name: Fransson, J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We address Fano-like interference effects in scanning tunneling microscopy (STM) measurements of nanoscale systems, e.g. two-level systems. Common for these systems is that second order tunneling contributions give rise to interference effects that cause suppressed transmission through the system for certain energies. The suppressed transmission is measurable either in the differential conductance or in the bias voltage derivative thereof.
description: 9 pages, 3 figures, submitted: in addition to the results published in Phys. Rev. B, 75, 153309 (2007), this paper contains a more thorough discussion on the used transport formalism, studies of asymmetric couplings to the substrate, and discussion of non-resonant levels. The non-resonant case is related to spin-dependent tunneling
Computational biology and bioinformatics as tools towards a better understanding of phenylketonuria
Creators: name: Carluccio, Carla
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2013

description: Phenylketonuria (PKU) is an autosomal recessive disease that leads to severe mental retardation in humans if left untreated. In this classical inborn error of metabolism,  the gene primarily affected is the PAH gene, which results in a protein with reduced enzyme activity that is not sufficient to hydroxylate phenylalanine to tyrosine.
Understanding the background of diseases is crucial to medical research, with implications in diagnosis, treatment and drug development. The computational approach has been proven to be very powerful to understand how genetic variations modify the structure of biological macromolecules and to shed light on the structure-function relationships. Thus, in my thesis, to get insight into the structural basis of the PAH defects underlying the disease, I used computational methods as homology modelling, molecular dynamics simulations and molecular docking.
Here, my current results contribute to elucidate specific aspects of PAH and PKU related to: (i) the conformational stability of disease-causing PAH mutants, (ii) the structural and dynamical features of the isolated ACT domain of the wild-type enzyme and of six mutants, (iii) the structural basis for the regulation of PAH, through the identification in silico of the putative allosteric L-Phe-binding site.
Baryogenesis via Leptogenesis in Adjoint SU(5)
Creators: name: Blanchet, Steve
name: Perez, Pavel Fileviez
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The possibility to explain the baryon asymmetry in the Universe through the leptogenesis mechanism in the context of Adjoint SU(5) is investigated. In this model the neutrino masses are generated through the Type I and Type III seesaw mechanisms, and the field responsible for the Type III seesaw, called rho_3, generates the B-L asymmetry needed to satisfy the observed value of the baryon asymmetry in the Universe. We find that the CP asymmetry originates only from the vertex correction, since the self-energy contribution is not present. When neutrino masses have a normal hierarchy, successful leptogenesis is possible for 10^{11} GeV < M_{ρ_3}^{NH} < 4 10^{14} GeV. When the neutrino hierarchy is inverted, the allowed mass range changes to 2 10^{11} GeV < M_{ρ_3}^{IH} < 5 10^{11} GeV. These constraints make possible to rule out a large part of the parameter space in the theory which was allowed by the unification of gauge interactions and the constraints coming from proton decay.
description: 15 pages, 3 figures, minor corrections, to appear in JCAP
Survey of Main Street East Hampton, 1833
Creators: name: (:Unas)
Publisher: name: Unknown
Year: 1833
Subjects: Photographs
Photos
East Hampton
Maps
Map making
Main Street

description: This is a survey map of main Street in East Hampton in 1833. This image is courtesy of "Book G" of the East Hampton Town Record and this reproduction was collected sometime from 1970 to 1982 as part of the East Hampton’s Heritage Photo Collection.
description: Images within East Hampton Heritage Photo Collection seem to have been taken or collected in relation to the East Hampton Heritage project, but not all of them were included in the final publication. Several photographer are included in this collection.
MOVARAUNNAKHR'S HISTORY AS A COMMERCIAL AND ECONOMIC CENTER OF THE TIMURID KINGDOM.
Creators: name: Rayimova, Sadoqatkhan
Publisher: name: Zenodo
Year: 2023

description: The article examines the economic policy of Amir Temur's powerful and huge state and its role in the life of the peoples of Central Asia. We know that the era of Amir Temur and the Timurids in the 14th-15th centuries is a "golden age" as a period of renaissance in the history of Central Asia. Currently, the formation of a national economic idea for the economic stability of the country has always been considered an urgent issue. In this article, Amir Temur and The conditions created for the development of external and internal trade relations within the framework of the economic reforms during the Timurid period are analyzed, and at the same time, the importance of fundamental changes in the socio-economic life of our country is shown. It is a fundamental basis for the further development of our thinking, and its practical use will undoubtedly make a significant contribution to the economic growth of our country.
Steady-state hydrodynamic instabilities of active liquid crystals: Hybrid lattice Boltzmann simulations
Creators: name: Marenduzzo, D.
name: Orlandini, E.
name: Cates, M. E.
name: Yeomans, J. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We report hybrid lattice Boltzmann (HLB) simulations of the hydrodynamics of an active nematic liquid crystal sandwiched between confining walls with various anchoring conditions. We confirm the existence of a transition between a passive phase and an active phase, in which there is spontaneous flow in the steady state. This transition is attained for sufficiently ``extensile'' rods, in the case of flow-aligning liquid crystals, and for sufficiently ``contractile'' ones for flow-tumbling materials. In a quasi-1D geometry, deep in the active phase of flow-aligning materials, our simulations give evidence of hysteresis and history-dependent steady states, as well as of spontaneous banded flow. Flow-tumbling materials, in contrast, re-arrange themselves so that only the two boundary layers flow in steady state. Two-dimensional simulations, with periodic boundary conditions, show additional instabilities, with the spontaneous flow appearing as patterns made up of ``convection rolls''. These results demonstrate a remarkable richness (including dependence on anchoring conditions) in the steady-state phase behaviour of active materials, even in the absence of external forcing; they have no counterpart for passive nematics. Our HLB methodology, which combines lattice Boltzmann for momentum transport with a finite difference scheme for the order parameter dynamics, offers a robust and efficient method for probing the complex hydrodynamic behaviour of active nematics.
description: 18 eps figures, accepted for publication in Phys. Rev. E
Once again about quantum deformations of D=4 Lorentz algebra: twistings of q-deformation
Creators: name: Borowiec, A.
name: Lukierski, J.
name: Tolstoy, V. N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: This paper together with the previous one (arXiv:hep-th/0604146) presents the detailed description of all quantum deformations of D=4 Lorentz algebra as Hopf algebra in terms of complex and real generators. We describe here in detail two quantum deformations of the D=4 Lorentz algebra o(3,1) obtained by twisting of the standard q-deformation U_{q}(o(3,1)). For the first twisted q-deformation an Abelian twist depending on Cartan generators of o(3,1) is used. The second example of twisting provides a quantum deformation of Cremmer-Gervais type for the Lorentz algebra. For completeness we describe also twisting of the Lorentz algebra by standard Jordanian twist. By twist quantization techniques we obtain for these deformations new explicit formulae for the deformed coproducts and antipodes of the o(3,1)-generators.
description: 17 pages
Stellar masers, circumstellar envelopes, and supernova remnants
Creators: name: Kemball, Athol J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This paper reviews recent advances in the study or circumstellar masers and masers found toward supernova remnants. The review is organized by science focus area, including the astrophysics of extended stellar atmospheres, stellar mass-loss processes and outflows, late-type evolved stellar evolution, stellar maser excitation and chemistry, and the use of stellar masers as independent distance estimators. Masers toward supernova remnants are covered separately. Recent advances and open future questions in this field are explored.
description: 16 pages, 2 figures, 2 tables: based on a review talk presented at IAU Symposium 242: Astrophysical masers and their environments, held at Alice Springs (Australia), March 12-16, 2007
Towards an Accurate Determination of Parameters for Very Massive Stars: the Eclipsing Binary LMC-SC1-105
Creators: name: Bonanos, Alceste Z.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This paper presents a photometric and spectroscopic study of the bright blue eclipsing binary LMC-SC1-105, selected from the OGLE catalog as a candidate host of very massive stars (>=30Mo). The system is found to be a double-lined spectroscopic binary, which indeed contains massive stars. The masses and radii of the components are M1= 30.9+/-1.0 Mo, M2= 13.0+/-0.7 Mo, and R1= 15.1+/-0.2 Ro, R2= 11.9+/-0.2 Ro, respectively. The less massive star is found to be filling its Roche lobe, indicating the system has undergone mass-transfer. The spectra of LMC-SC1-105 display the Struve-Sahade effect, with the HeI lines of the secondary appearing stronger when it is receding and causing the spectral types to change with phase (O8+O8 to O7+O8.5). This effect could be related to the mass-transfer in this system. To date, accurate (<=10%) fundamental parameters have only been measured for 15 stars with masses greater than 30 Mo, with the reported measurements contributing valuable data on the fundamental parameters of very massive stars at low metallicity. The results of this work demonstrate that the strategy of targeting the brightest blue stars in eclipsing binaries is an effective way of studying very massive stars.
description: 32 pages, 13 figures, 5 tables; accepted for publication in The Astrophysical Journal
Pulsar Radio Emission Cutoffs
Creators: name: Lopez, Ericsson D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The propagation of radio emission in pulsar magnetospheres is discussed. We follow a kinematics model in order to derive dispersion relations for electromagnetic oscillations and transversal waves, propagating in a cold moving plasma. We have included relativistic corrections on the dispersion properties, involved with the relativistic motion of the emitting plasma. The occurrence of plasma instabilities is analyzed beside the conditions which should be fulfilled in order to permit the wave propagation and conversion in regions close to the cutoffs of the system. The existence of various frequencies of resonance has been predicted and we are working out these results in order to explain the low-frequency cutoffs observed in radio pulsar spectra.
description: 8 pages, no figures
Additional file 1 of Analysing 3429 digital supervisory interactions between Community Health Workers in Uganda and Kenya: the development, testing and validation of an open access predictive machine learning web app
Creators: name: O’Donovan, James
name: Kahn, Ken
name: MacRae, MacKenzie
name: Namanda, Allan Saul
name: Hamala, Rebecca
name: Kabali, Ken
name: Geniets, Anne
name: Lakati, Alice
name: Mbae, Simon M.
name: Winters, Niall
Publisher: name: figshare
Year: 2022
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 1: Data cleaning process for test and validation data sets.
Does confining the hard-sphere fluid between hard walls change its average properties?
Creators: name: Mittal, Jeetain
name: Errington, Jeffrey R.
name: Truskett, Thomas M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We use grand canonical transition-matrix Monte Carlo and discontinuous molecular dynamics simulations to generate precise thermodynamic and kinetic data for the equilibrium hard-sphere fluid confined between smooth hard walls. These simulations show that the pronounced inhomogeneous structuring of the fluid normal to the confining walls, often the primary focus of density functional theory studies, has a negligible effect on many of its average properties over a surprisingly broad range of conditions. We present one consequence of this insensitivity to confinement: a simple analytical equation relating the average density of the confined fluid to that of the bulk fluid with equal activity. Nontrivial implications of confinement for average fluid properties do emerge in this system, but only when the fluid is both (i) dense and (ii) confined to a gap smaller than approximately three particle diameters. For this limited set of conditions, we find that "in-phase" oscillatory deviations in excess entropy and self-diffusivity (relative to the behavior of the bulk fluid at the same average density) occur as a function of gap size. These paired thermodynamic/kinetic deviations from bulk behavior appear to reflect the geometric packing frustration that arises when the confined space cannot naturally accommodate an integer number of particle layers.
description: To appear in Journal of Chemical Physics
An evolved disk surrounding the massive main sequence star MWC 297?
Creators: name: Manoj, P.
name: Ho, Paul T. P.
name: Ohashi, Nagayoshi
name: Zhang, Qizhou
name: Hasegawa, T.
name: Chen, Huei-Ru
name: Bhatt, H. C.
name: Ashok, N. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of the interferometric observations of the circumstellar disk surrounding MWC 297 in the continuum at 230 GHz (1.3 mm) and in the (J=2-1) rotational transitions of $^{12}$CO,$^{13}$CO and C$^{18}$O using the Submillimeter Array. At a distance of 250 pc, MWC 297 is one of the closest, young massive stars (M$_{\star}$ $\sim$10 M$_{\odot}$) to us. Compact continuum emission is detected towards MWC 297 from which we estimate a disk mass (gas+dust) of 0.07 M$_{\odot}$ and a disk radius of $\le$ 80 AU. Our result demonstrates that circumstellar disks can survive around massive stars well into their main sequence phase even after they have become optically visible. Complementing our observations with the data compiled from the literature, we find the submm dust opacity index $β$ to be between 0.1 and 0.3. If the emission is optically thin, the low value of $β$ indicates the presence of relatively large grains in the disk, possibly because of grain growth. We do not detect any CO emission associated with the continuum source. We argue that the $^{13}$CO emission from the disk is likely optically thin, in which case, we derive an upper limit to the gas mass which implies significant depletion of molecular gas in the disk. The mass of this disk and the evolutionary trends observed are similar to those found for intermediate mass Herbig Ae stars and low mass T Tauri stars.
description: 4 pages, 3 Figures, accepted for publication in ApJL
Additional file 2 of Analysing 3429 digital supervisory interactions between Community Health Workers in Uganda and Kenya: the development, testing and validation of an open access predictive machine learning web app
Creators: name: O’Donovan, James
name: Kahn, Ken
name: MacRae, MacKenzie
name: Namanda, Allan Saul
name: Hamala, Rebecca
name: Kabali, Ken
name: Geniets, Anne
name: Lakati, Alice
name: Mbae, Simon M.
name: Winters, Niall
Publisher: name: figshare
Year: 2022
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 2: Links to libraries underlying the CHWsupervisor web app.
Political Problems Facing Governments in Using Scientific Advice, and Legal and Other Problems Facing Scientists when Trying to Give Independent Advice to Governments
Creators: name: Gottstein, Klaus
name: Matz, Nele
Publisher: name: arXiv
Year: 2008
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: It is the role of the scientific community to provide for the knowledge of scientific facts and technical capabilities as a background for political decision-making. The reasons are given why governments are sometimes not ready to accept well-founded advice. The legal relationship between governments and scientific research are considered. The options available to the scientific community for supplying useful advice to decision-makers and to the public in questions of general concern are delineated.
description: 14 pages. Paper presented to XVI International Amaldi Conference on Scientific Questions of Global Security, Trieste, Italy, 2004
Quantum hub and authority centrality measures for directed networks based on continuous-time quantum walks
Creators: name: Boito, Paola
name: Grena, Roberto
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: Quantum Physics (quant-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this work we introduce, test and discuss three quantum methods for computing hub and authority centrality scores in directed networks. The methods are based on unitary, continuous-time quantum walks; the construction of a suitable Hermitian Hamiltonian is achieved by performing a quantum walk on the associated bipartite graph. Two methods, called CQAu and CQAw, use the same evolution operator, inspired by the classical HITS algorithm, but with different initial states; the computation of hub and authority scores is performed simultaneously. The third method, called CQG and inspired by classical PageRank, requires instead two separate runs with different evolution operators, one for hub and one for authority scores. The methods are tested on several directed graphs with different sizes and properties; a comparison with other well-established ranking algorithms is provided. CQAw emerges as the most reliable of the three methods and yields rankings that are largely compatible with results from HITS, although CQAu and CQG also present interesting features and potential for applications.
Intriguing detection of $^{12}$CO molecular emission in a classical Be star
Creators: name: Cochetti, Y. R.
name: Arias, M. L.
name: Kraus, M.
name: Cidale, L. S.
name: Torres, A. F.
name: Granada, A.
name: Maryeva, O. V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In the group of B stars with spectroscopic peculiarities, we can find the Be and the B[e] stars. The Be stars are early-type rapid rotators that present, as their principal characteristic, emission lines of hydrogen and singly ionized metals due to the presence of a gaseous envelope. The B[e] stars present in their spectra heterogeneous features that reveal the presence of regions with very different properties in a gaseous and dusty envelope. Our goal is to study the evolution of the disks around peculiar B stars through the variability of their physical properties and dynamical structure, as well as to set constraints on different models and disk forming mechanisms. Throughout the last decade, we have carried out temporal monitoring of a sample of objects in the near infrared using spectroscopic facilities at the Gemini and Las Campanas Observatories. In the present work, we focus on the classical Be star 12 Vul, for which also optical spectra have been collected quasi-simultaneously. We observed variability in the hydrogen line profiles of 12 Vul, attributed to dissipating and building-up processes of the circumstellar envelope. Also, we found that this Be star presented the $^{12}$CO band heads in emission in one observation. The emission of this molecule has not been previously reported in a Be star, while it is a common feature among B[e] stars. We obtained parameters to describe the $^{12}$CO emitting region and propose different scenarios to explain this intriguing emission.
description: 6 pages, 3 figures. Accepted for publication in A&A
Using silicon-vacancy centers in diamond to probe the full strain tensor
Creators: name: Bates, Kelsey M.
name: Day, Matthew W.
name: Smallwood, Christopher L.
name: Owen, Rachel C.
name: Ulbricht, Ronald
name: Schröder, Tim
name: Bielejec, Edward
name: Cundiff, Steven T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: An ensemble of silicon vacancy centers in diamond (\ce{SiV-}) is probed using two coherent spectroscopy techniques. Two main distinct families of \ce{SiV-} centers are identified using multidimensional coherent spectroscopy, and these families are paired with two orientation groups by comparing spectra from different linear polarizations of the incident laser. By tracking the peak centers in the measured spectra, the full diamond strain tensor is calculated local to the laser spot. Such measurements are made at multiple points on the sample surface and variations in the strain tensor are observed.
An Interpretable Multiple-Instance Approach for the Detection of referable Diabetic Retinopathy from Fundus Images
Creators: name: Papadopoulos, Alexandros
name: Topouzis, Fotis
name: Delopoulos, Anastasios
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Diabetic Retinopathy (DR) is a leading cause of vision loss globally. Yet despite its prevalence, the majority of affected people lack access to the specialized ophthalmologists and equipment required for assessing their condition. This can lead to delays in the start of treatment, thereby lowering their chances for a successful outcome. Machine learning systems that automatically detect the disease in eye fundus images have been proposed as a means of facilitating access to DR severity estimates for patients in remote regions or even for complementing the human expert's diagnosis. In this paper, we propose a machine learning system for the detection of referable DR in fundus images that is based on the paradigm of multiple-instance learning. By extracting local information from image patches and combining it efficiently through an attention mechanism, our system is able to achieve high classification accuracy. Moreover, it can highlight potential image regions where DR manifests through its characteristic lesions. We evaluate our approach on publicly available retinal image datasets, in which it exhibits near state-of-the-art performance, while also producing interpretable visualizations of its predictions.
description: 11 pages
Epicyclic oscillations in spinning particle motion around Kerr black hole applied in models fitting the quasi-periodic oscillations observed in quasars and microquasars
Creators: name: Shahzadi, Misbah
name: Kološ, Martin
name: Stuchlík, Zdeněk
name: Habib, Yousaf
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The study of the quasi-periodic oscillations (QPOs) of X-ray flux observed in the stellar-mass black hole (BH) binaries or quasars can provide a powerful tool for testing the phenomena occurring in strong gravity regime. We thus fit the data of QPOs observed in the well known quasars as well as microquasars in the framework of the model of geodesic oscillations of Keplerian disks modified for the epicyclic oscillations of spinning test particles orbiting Kerr BHs. We show that the modified geodesic models of QPOs can explain the observational fixed data from the quasars and microquasars but not for all sources. We perform a successful fitting of the high frequency QPOs models of epicyclic resonance and its variants, relativistic precession and its variants, tidal disruption, as well as warped disc models, and discuss the corresponding constraints of parameters of the model, which are the spin $S$ of the test particle, mass $M$ and spin $a$ of the BH.
Book Review. Towards an Ecology of Nursing Knowledge: Nursing and Humanities by Dr. Graham McCaffrey
Creators: name: Venturato, Lorraine
Publisher: name: Journal of Applied Hermeneutics
Year: 2021

description: McCaffrey, G. (2020). Nursing and humanities. Routledge. (pp. 127, $63.95 CAD, Hardcover) Nursing and Humanities by Dr. Graham McCaffrey explores the role of humanities in nursing knowledge, and McCaffrey makes a compelling case that humanities are an integral, though often invisible, part of nursing practice. He places nursing humanities within the sphere of health humanities and provides a cogent argument, along with examples and insights, to support the claim that the humanities offer not merely another form of knowledge to sit alongside science, but also a way to integrate the diversity of nursing knowledge into a coherent framework or ecology of nursing practice. In this respect, the book serves as an important development in understanding nursing practice and forms a possible bridge between the tensions inherent in contemporary explorations of nursing as an art and science. The book is aimed at nurses, graduate students, nurse educators and researchers, and anyone with an interest in nursing theory. Nursing and Humanities is rich with ideas and propositions, often thought-provoking and challenging in its offering of an evolution of thinking about nursing knowledge and practice.
description: Journal of Applied Hermeneutics, 2021: 2021
Neural Network Architecture for Determining the Aging of Stationary Storage Systems in Smart Grids
Creators: name: Rzepka, Florian
name: Hematty, Philipp
name: Schmitz, Mano
name: Kowal, Julia
Publisher: name: Technische Universität Berlin
Year: 2023
Subjects: subject: 600 Technik, Medizin, angewandte Wissenschaften::620 Ingenieurwissenschaften::620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
subject: State-of-Health estimation
subject: Multilayer Perceptron model
subject: lag sequences
subject: SOH estimation
subject: MLP model

description: The estimation of the State-of-Health (SOH) of energy storage systems is a key task to ensure their reliable operation and maintenance. This paper investigates a new SOH determination method for stationary storage in Microgrids. Aging tests are conducted on NMC cells, with test profiles corresponding to Microgrids’ conditions. The focus of this work is on optimizing the learning process and the application of a Multilayer Perceptron (MLP) model to address this issue. This study introduces a novel approach of considering lag sequences, or time series data, to expedite the learning procedure and enhance prediction accuracy. A key advancement in this research is the usage of shorter time intervals to calculate the SOH, which not only reduces the learning time but also decreases the application time. This approach led to an overall reduction in computational effort when estimating the SOH. Energy is introduced as a new input parameter, resulting in improved modeling and more accurate SOH estimations. Furthermore, the MLP model achieved a Mean Squared Error (MSE) of 2.95 and a Mean Absolute Error (MAE) of 1.10, which are indicative of its strong predictive accuracy. Emphasis was also placed on the careful tuning and optimization of the neural network’s hyperparameters. The goal was to design a computationally efficient network that still yields optimal results. The findings demonstrate the effectiveness and potential of the MLP model in SOH estimation, underscoring the importance of the methodical model design and hyperparameter optimization.
Adapting the ESSENZ Method to Assess the Criticality of Construction Materials: Case Study of Herne, Germany
Creators: name: Randebrock, Inka
name: Marinova, Sylvia
name: Bach, Vanessa
name: Arendt, Rosalie
name: Finkbeiner, Matthias
Publisher: name: Technische Universität Berlin
Year: 2023
Subjects: subject: 600 Technik, Medizin, angewandte Wissenschaften::620 Ingenieurwissenschaften::620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
subject: supply risk
subject: criticality
subject: construction
subject: ESSENZ
subject: concrete
subject: glass

description: The steady increase in the world’s population combined with the globally growing need for living space by each individual is leading to an ever-faster consumption of limited resources by the construction industry, particularly sand and gravel. While a consensus exists regarding the sand and gravel resource availability on a global level for long-term supply, it is important to note that local supply shortages may still occur. Thus, this study aims to identify critical aspects of both locally and globally traded construction materials by adapting the ESSENZ method, which evaluates the criticality of globally traded abiotic resources. For the specific case of the local availability of construction materials, a new indicator is introduced: The Surface Squared Driven Indicator (SSDI), which is adapted to the specific conditions of the German market. The modified ESSENZ method is applied in a case study of materials needed for maintaining the material stock of the city of Herne, Germany. The results indicate that raw materials for concrete production in Germany, such as aggregates, are expected to be sufficient in the long term, but silica sand for glass production is only guaranteed for a few decades. Concrete poses the highest supply risk due to its high material demand, with steel and concrete dominating the environmental impacts. Limitations include data availability and the exclusion of certain materials. The adapted ESSENZ method allows for the comparison of criticality results for materials traded globally and locally, offering valuable insights for decision-makers seeking to promote sustainable construction practices.
Tire Wear Monitoring Approach for Hotspot Identification in Road Deposited Sediments from a Metropolitan City in Germany
Creators: name: Venghaus, Daniel
name: Neupert, Johannes Wolfgang
name: Barjenbruch, Matthias
Publisher: name: Technische Universität Berlin
Year: 2023
Subjects: subject: 300 Sozialwissenschaften::330 Wirtschaft::333 Boden- und Energiewirtschaft
subject: tire wear
subject: microplastics
subject: road sediments
subject: sweeping
subject: road runoff
subject: hot spots
subject: SBR

description: Plastic in the environment poses an increasing challenge. Microplastics, which include tire wear, enter the aquatic environment via different pathways, and increasing vehicle traffic leads to increased tire wear. This paper describes an approach for how inner-city tire wear hotspots can systematically be identified by sampling road-deposited sediments (RDS) by sweeping. Within the investigations herein described, six inner-city monitoring sites were sampled. The total masses of solids as well as the amount of styrene-butadiene rubber (SBR) representing Tire and Road Wear Particles (TRWP) were determined. It was shown that the sites differ significantly from each other with regard to SBR parts. The amount of SBR in the curve was on average eight times higher than in the slope, and in the area of the traffic lights, it was on average three times higher than in the slope. The RDS mass results also differ but with a factor of 2 for the curve and of 1.5 for the traffic light. The investigations and the corresponding results in this paper are unique, and the monitoring approach can be used in the future to derive and optimize sustainable measures in order to reduce the discharge of TRWP into the environment by road runoff.
EXPLANATION OF TRADE AND SALE RELATIONS DURING THE TEMURIAN PERIOD IN THE DIARY OF R. G. CLAVIKHO
Creators: name: Rayimova, Sadokhatxon
Publisher: name: Zenodo
Year: 2023

description: In this article, Amir Temur and trade relations during the Timurid period are studied and analyzed on the example of Claviho's "Diary". Some comments about the daily life of the market, stalls and traders are given. Keywords. Claviho, "Kundalik", trade, Amir Temur, Timurids, stalls, bazaars, caravanserais.
Manutenzione su condizione: modellazione e ottimizzazione
Creators: name: Zoppoli, Pasquale
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2008

description: Nel lavoro di tesi è stato realizzato un modello originale di simulazione adatto a rappresentare il comportamento di un sistema complesso di produzione caratterizzato da diversi elementi in serie soggetti ad usura. Il sistema è sottoposto ad una politica di manutenzione su condizione. Attraverso la caratterizzazione analitica o statistica del comportamento di ciascuno degli elementi del sistema è stato possibile studiare il comportamento del sistema e in particolare si è pervenuti all’ottimizzazione del sistema manutentivo. Si è raggiunto così l’obiettivo di ridurre al minimo il costo globale di manutenzione rappresentato dalla somma tra i costi propri (ispezioni, interventi manutentivi, ecc.) e i costi indotti dovuti sostanzialmente all’indisponibilità del sistema produttivo.
Infine, modificando opportunamente alcuni parametri chiave del processo di produzione e manutenzione, si è condotta un’analisi parametrica del comportamento del sistema, volta a determinare l’andamento dei costi e delle soglie  di intervento. Il modello sviluppato e la sua ottimizzazione hanno consentito di sviluppare un’analisi parametrica del sistema produttivo studiato, raggiungendo lo scopo che ci si era prefissato, che era quello di riprodurre il comportamento di un sistema soggetto a manutenzione su condizione al fine di migliorarne le performance.
Symmetry Energy I: Semi-Infinite Matter
Creators: name: Danielewicz, Pawel
name: Lee, Jenny
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Energy for a nucleus is considered in macroscopic limit, in terms of nucleon numbers. Further considered for a nuclear system is the Hohenberg-Kohn energy functional, in terms of proton and neutron densities. Finally, Skyrme-Hartree-Fock calculations are carried out for a half-infinite particle-stable nuclear-matter. In each case, the attention is focused on the role of neutron-proton asymmetry and on the nuclear symmetry energy. We extend the considerations on the symmetry term from an energy formula to the respective term in the Hohenberg-Kohn functional. We show, in particular, that in the limit of an analytic functional, and subject to possible Coulomb corrections, it is possible to construct isoscalar and isovector densities out of the proton and neutron densities, that retain a universal relation to each other, approximately independent of asymmetry. In the so-called local approximation, the isovector density is inversely proportional to the symmetry energy in uniform matter at the local isoscalar density. Generalized symmetry coefficient of a nuclear system is related, in the analytic limit of a functional, to an integral of the isovector density. We test the relations, inferred from the Hohenberg-Kohn functional, in the Skyrme-Hartree-Fock calculations of half-infinite matter. Within the calculations, we obtain surface symmetry coefficients and parameters characterizing the densities, for the majority of Skyrme parameterizations proposed in the literature. The volume-to-surface symmetry-coefficient ratio and the displacement of nuclear isovector relative to isoscalar surfaces both strongly increase as the slope of symmetry energy in the vicinity of normal density increases.
description: 87 pages, 18 figures; discussion of Kohn-Sham method added, comparison to results in literature broadened
Robust Risk-Aware Reinforcement Learning
Creators: name: Jaimungal, Sebastian
name: Pesenti, Silvana
name: Wang, Ye Sheng
name: Tatsat, Hariom
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Computational Finance (q-fin.CP)
subject: Portfolio Management (q-fin.PM)
subject: Risk Management (q-fin.RM)
subject: Statistical Finance (q-fin.ST)
subject: FOS: Computer and information sciences
subject: FOS: Economics and business
subject: 91G70, 91-10, 91-08, 90C17, 93E35

description: We present a reinforcement learning (RL) approach for robust optimisation of risk-aware performance criteria. To allow agents to express a wide variety of risk-reward profiles, we assess the value of a policy using rank dependent expected utility (RDEU). RDEU allows the agent to seek gains, while simultaneously protecting themselves against downside risk. To robustify optimal policies against model uncertainty, we assess a policy not by its distribution, but rather, by the worst possible distribution that lies within a Wasserstein ball around it. Thus, our problem formulation may be viewed as an actor/agent choosing a policy (the outer problem), and the adversary then acting to worsen the performance of that strategy (the inner problem). We develop explicit policy gradient formulae for the inner and outer problems, and show its efficacy on three prototypical financial problems: robust portfolio allocation, optimising a benchmark, and statistical arbitrage.
description: 12 pages, 5 figures
Additional file 3 of Analysing 3429 digital supervisory interactions between Community Health Workers in Uganda and Kenya: the development, testing and validation of an open access predictive machine learning web app
Creators: name: O’Donovan, James
name: Kahn, Ken
name: MacRae, MacKenzie
name: Namanda, Allan Saul
name: Hamala, Rebecca
name: Kabali, Ken
name: Geniets, Anne
name: Lakati, Alice
name: Mbae, Simon M.
name: Winters, Niall
Publisher: name: figshare
Year: 2022
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 3: Additional CHWsupervisor web app development details.
Additional file 4 of Analysing 3429 digital supervisory interactions between Community Health Workers in Uganda and Kenya: the development, testing and validation of an open access predictive machine learning web app
Creators: name: O’Donovan, James
name: Kahn, Ken
name: MacRae, MacKenzie
name: Namanda, Allan Saul
name: Hamala, Rebecca
name: Kabali, Ken
name: Geniets, Anne
name: Lakati, Alice
name: Mbae, Simon M.
name: Winters, Niall
Publisher: name: figshare
Year: 2022
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 4: Confusion matrices.
POROUS SILICON BASED OPTICAL DEVICES FOR BIOCHEMICAL SENSING
Creators: name: Rea, Ilaria
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2008

description: This thesis summarizes a three years scientific research investigation on the design and fabrication of porous silicon based optical devices for applications in the field of biochemical sensing. Porous silicon is an ideal transducer material due to its sponge-like morphology, characterized by a specific surface area up to 500 m2 cm-3, which assures an effective interaction with gas and liquid substances. Moreover, porous silicon is a low cost material, completely compatible with standard microelectronic processes.
In this work, different porous silicon structures such as Fabry-Perot interferometer, Bragg mirror, optical microcavity, Thue-Morse sequences and optical waveguide have been realized and characterized as optical transducers for the monitoring of chemical and biological interactions. The selectivity, reversibility and sensitivity of these devices as optical sensors have been discussed.
The porous silicon surface has been modified in order to gain chemical stability, proper wettability, and specific features such as biomolecules immobilization. Standard chemical functionalizations, but also an innovative pure biological passivation method based on selfassembled biofilms of the Hydrophobins proteins, have been successfully experimented.
Some standard micromachining techniques, such as HF wet etching and anodic bonding, have been optimized to integrate the porous silicon sensing element into a Lab-on-Chip prototype. The integrated devices have been characterized as fast sensors of chemical compounds and response times shorter than 100 ms have been demonstrated. The Direct-Laser-Writing of the porous silicon surface, as alternative process to the photolithographic patterning in the device miniaturization has been also exploited.
Finally, a bottom-up approach in microoptics has been developed by using the silica shells of some marine Diatoms, microalgae which show impressive morphological and physical analogies with porous silicon.
La Villa Comunale di Napoli e le sue trasformazioni tra Ottocento e Novecento
Creators: name: Iandolo, Stefania
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2011

description: Il lavoro svolto per la realizzazione della tesi affronta il tema della Villa Comunale di Napoli ed in particolare il periodo che va dagli inizi dell'Ottocento fino alla prima metà del Novecento e spazia sui numerosi e diversificati aspetti che compongono il palinsesto del giardino napoletano. Data la vastità del tema, infatti, si è reso necessario un inquadramento storico che limitasse il raggio d'indagine a favore della completezza degli argomenti trattati e si è scelto per l'elaborazione dello studio un taglio critico che consentisse di procedere in parallelo tra considerazioni di ordine storico-architettonico e ragionamenti di ordine sociale. L'analisi della frequentazione del pubblico della Villa ha infatti condotto a deduzioni più ampie sulle motivazioni che hanno prodotto le trasformazioni fisiche del giardino stesso.
Elementi di novità del lavoro, oltre al taglio critico, sono nell'indagine di alcuni progetti mai eseguiti dei quali uno, ritrovato tra le carte d'archivio ed inedito, fornisce un'interessante soluzione per l'ampiamento del 1806.