cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Untersuchung unabhängiger N‐H‐ und N‐C‐Bindungsverformungen auf ultrakurzen Zeitskalen mit resonanter inelastischer Röntgenstreuung
Creators: name: Eckert, Sebastian
name: Norell, Jesper
name: Miedema, Piter S.
name: Beye, Martin
name: Fondell, Mattis
name: Quevedo, Wilson
name: Kennedy, Brian
name: Hantschmann, Markus
name: Pietzsch, Annette
name: van Kuiken, Benjamin E.
name: Ross, Matthew
name: Minitti, Michael P.
name: Moeller, Stefan P.
name: Schlotter, William F.
name: Khalil, Munira
name: Odelius, Michael
name: Föhlisch, Alexander
Publisher: name: Universität Potsdam
Year: 2021
Subjects: subject: 540 Chemie und zugeordnete Wissenschaften
subject: 660 Chemische Verfahrenstechnik

description: Die Femtosekundendynamik nach resonanten Photoanregungen mit optischen und Röntgenpulsen ermöglicht eine selektive Verformung von chemischen N‐H‐ und N‐C‐Bindungen in 2‐Thiopyridon in wässriger Lösung. Die Untersuchung der orbitalspezifischen elektronischen Struktur und ihrer Dynamik auf ultrakurzen Zeitskalen mit resonanter inelastischer Röntgenstreuung an der N1s‐Resonanz am Synchrotron und dem Freie‐Elektronen‐Laser LCLS in Kombination mit quantenchemischen Multikonfigurationsberechnungen erbringen den direkten Nachweis dieser kontrollierten photoinduzierten Molekülverformungen und ihrer ultrakurzen Zeitskala.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe; 1121
Non-perturbative methods for NN singular interactions
Creators: name: Entem, D. R.
name: Oller, J. A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Chiral Effective Field Theory ($χ$EFT) has been extensively used to study the $NN$ interaction during the last three decades. In Effective Field Theories (EFTs) the renormalization is performed order by order including the necessary counter terms. Due to the strong character of the $NN$ interaction a non-perturbative resummation is needed. In this work we will review some of the methods proposed to completely remove cutoff dependencies. The methods covered are renormalization with boundary conditions, renormalization with one counter term in momentum space (or equivalently substractive renormalization) and the exact $N/D$ method. The equivalence between the methods up to one renormalization condition will be checked showing results in the $NN$ system. The exact $N/D$ method allows to go beyond the others, and using a toy model it is shown how it can renormalize singular repulsive interactions.
description: Contribution to EPJ ST "Topics in Light-Quark Physics"
INFLUENCE OF HOME ENVIRONMENT ON ACADEMIC PERFORMANCE OF SECONDARY SCHOOL STUDENTS A CASE STUDY OF OYIGBO LGA OF RIVERS STATE
Creators: name: Ezevunwo, Obinachi Wori PhD
name: Samuel, Aleruchi Egbuchu Ph.D
name: Omobolanle, Shakirat Oshoko
Publisher: name: ZAP Journals
Year: 2023
Subjects: Influence
Home Environment
academic
performance
secondary school student

description: The purpose of the study is to find out the influence of home background on the student’s academic performance Oyigbo of Rivers State. The literature review was done through reading of textbooks newspapers and journals the method adopted were the questionnaires. The data got from the questionnaires were collected into figures and percentages which are show in tabular from. The responses from the data collected revealed that the socio-economic of the parents, residence and the size of the family affects the academic performance of students. Finally, recommendations to the above influence of home background on students academic performance Oyigbo LGA are made and some of that include the following. Parents should try as much as possible to give much affection and encouragement to their children in order, which their children would be motivated which could boost their academic performance parents should have the number of children that they can easily cater for early upbringing of a child plays a vital role in (later) education of the child.
Majorana quanta, string scattering, curved spacetimes and the Riemann Hypothesis
Creators: name: Tamburini, Fabrizio
name: Licata, Ignazio
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Riemann Hypothesis states that the Riemann zeta function $ζ(z)$ admits a set of ``non-trivial'' zeros that are complex numbers supposed to have real part $1/2$. Their distribution on the complex plane is thought to be the key to determine the number of prime numbers before a given number. Hilbert and Pólya suggested that the Riemann Hypothesis could be solved through the mathematical tools of physics, finding a suitable Hermitian or unitary operator that describe classical or quantum systems, whose eigenvalues distribute like the zeros of $ζ(z)$. A different approach is that of finding a correspondence between the distribution of the $ζ(z)$ zeros and the poles of the scattering matrix $S$ of a physical system. Our contribution is articulated in two parts: in the first we apply the infinite-components Majorana equation in a Rindler spacetime and compare the results with those obtained with a Dirac particle following the Hilbert-Pólya approach showing that the Majorana solution has a behavior similar to that of massless Dirac particles and finding a relationship between the zeros of zeta end the energy states. Then, we focus on the $S$-matrix approach describing the bosonic open string scattering for tachyonic states with the Majorana equation. Here we find that, thanks to the relationship between the angular momentum and energy/mass eigenvalues of the Majorana solution, one can explain the still unclear point for which the poles and zeros of the $S$-matrix of an ideal system that can satisfy the Riemann Hypothesis, exist always in pairs and are related via complex conjugation. As claimed in the literature, if this occurs and the claim is correct, then the Riemann Hypothesis could be in principle satisfied, tracing a route to a proof.
description: 25 pages, 1 figure
The nanostructural origin of the ac conductance in dielectric granular metals: the case study of Co_20(ZrO_2)_80
Creators: name: Konstantinovic, Z
name: del Muro, M Garcia
name: Batlle, X
name: Labarta, A
name: Varela, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We show which is the nanostructure required in granular Co20(ZrO2)80 thin films to produce an ac response such as the one that is universally observed in a very wide variety of dielectric materials. A bimodal size distribution of Co particles yields randomly competing conductance channels which allow both thermally assisted tunneling through small particles and capacitive conductance among larger particles that are further apart. A model consisting on a simple cubic random resistance-capacitor network describes quantitatively the experimental results as functions of temperature and frequency, and enables the determination of the microscopic parameters controlling the ac response of the samples.
description: Available online at: http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=APPLAB000091000005052108000001&idtype=cvips&gifs=yes
Scalar mesons and the fragmented glueball
Creators: name: Klempt, Eberhard
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The center-of-gravity rule is tested for heavy and light-quark mesons. In the heavy-meson sector, the rule is excellently satisfied. In the light-quark sector, the rule suggests that the $a_0(980)$ could be the spin-partner of $a_2(1320)$, $a_1(1260)$, and $b_1(1235)$; $f_0(500)$ the spin-partner of $f_2(1270)$, $f_1(1285)$, and $h_1(1170)$; and $f_0(980)$ the spin-partner of $f_2'(1525)$, $f_1(1420)$, and $h_1(1415)$. From the decay and the production of light scalar mesons we find a consistent mixing angle $θ^{\rm s}=(14\pm4)^\circ$. We conclude that $f_0(980)$ is likely "octet-like" in SU(3) with a slightly larger $s\bar s$ content and $f_0(500)$ is SU(3) "singlet-like" with a larger $n\bar n$ component. The $a_0(1450)$, $K^*_0(1430)$, $f_0(1500)$ and $f_0(1370)$ are suggested as nonet of radial excitations. The scalar glueball is discussed as part of the wave function of scalar isoscalar mesons and not as additional "intruder". It seems not to cause supernumerosity.
description: 10 pages, 2 figures
Naturally Light Dirac Neutrinos from SU(6)
Creators: name: Ma, Ernest
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A known mechanism for obtaining naturally light Dirac neutrinos is implemented in the context of $SU(6) \to SU(5) \times U(1)_N$.
description: 8 pages, no figure
Phase diagram of a generalized Winfree model
Creators: name: Giannuzzi, F.
name: Marinazzo, D.
name: Nardulli, G.
name: Pellicoro, M.
name: Stramaglia, S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the phase diagram of a generalized Winfree model. The modification is such that the coupling depends on the fraction of synchronized oscillators, a situation which has been noted in some experiments on coupled Josephson junctions and mechanical systems. We let the global coupling k be a function of the Kuramoto order parameter r through an exponent z such that z=1 corresponds to the standard Winfree model, z<1 strengthens the coupling at low r (low amount of synchronization) and, at z>1, the coupling is weakened for low r. Using both analytical and numerical approaches, we find that z controls the size of the incoherent phase region, and one may make the incoherent behavior less typical by choosing z<1. We also find that the original Winfree model is a rather special case, indeed the partial locked behavior disappears for z>1. At fixed k and varying gamma, the stability boundary of the locked phase corresponds to a transition that is continuous for z<1 and first-order for z>1. This change in the nature of the transition is in accordance with a previous study on a similarly modified Kuramoto model.
description: 9 pages, 3 figures
Coherent control and distinguishability of quantum channels via PBS-diagrams
Creators: name: Branciard, Cyril
name: Clément, Alexandre
name: Mhalla, Mehdi
name: Perdrix, Simon
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We introduce a graphical language for coherent control of general quantum channels inspired by practical quantum optical setups involving polarising beam splitters (PBS). As standard completely positive trace preserving maps are known not to be appropriate to represent coherently controlled quantum channels, we propose to instead use purified channels, an extension of Stinespring's dilation. We characterise the observational equivalence of purified channels in various coherent-control contexts, paving the way towards a faithful representation of quantum channels under coherent control.
description: 34 pages
Squarefree powers of edge ideals of forests
Creators: name: Erey, Nursel
name: Hibi, Takayuki
Publisher: name: arXiv
Year: 2021
Subjects: subject: Commutative Algebra (math.AC)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: Let $I(G)^{[k]}$ denote the $k$th squarefree power of the edge ideal of $G$. When $G$ is a forest, we provide a sharp upper bound for the regularity of $I(G)^{[k]}$ in terms of the $k$-admissable matching number of $G$. For any positive integer $k$, we classify all forests $G$ such that $I(G)^{[k]}$ has linear resolution. We also give a combinatorial formula for the regularity of $I(G)^{[2]}$ for any forest $G$.
description: to appear in Electronic Journal of Combinatorics
SPEECH DEVELOPMENT OF PRE-SCHOOL CHILDREN BASED ON DIGITAL EDUCATIONAL TECHNOLOGIES
Creators: name: Komilova, Shakhnozabonu
Publisher: name: Zenodo
Year: 2024

description: In this thesis, there are opinions on the methodology of developing speech skills of students of preschool educational organizations. Also, attention is paid to the issues related to the development of speech in the cognitive process of the mental development of the child, where the main attention is paid to the issue of raising a healthy child in our country.
Failure of Ornstein--Zernike asymptotics for the pair correlation function at high temperature and small density
Creators: name: Aoun, Y.
name: Ioffe, D.
name: Ott, S.
name: Velenik, Y.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We report on recent results that show that the pair correlation function of systems with exponentially decaying interactions can fail to exhibit Ornstein-Zernike asymptotics at all sufficiently high temperatures and all sufficiently small densities. This turns out to be related to a lack of analyticity of the correlation length as a function of temperature and/or density and even occurs for one-dimensional systems.
description: Accepted for publication as a Letter in Physical Review E; minor improvements after proofreading
Analisi delle complicanze precoci post-operatorie e del TRG nei pazienti con cancro del retto, sottoposti a chemio-radioterapia neoadiuvante e a Total Mesorectal Excision (TME)
Creators: name: Grimaldi, Luciano
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2013

description: Il ruolo della chemio-radioterapia neoadiuvante nel trattamento multimodale del cancro del retto, per ciò che concerne le complicanze precoci post-operatorie, non è ancora ben definito; alcuni chirurghi ritengono che possa aumentare l’incidenza di complicanze precoci.L’obiettivo del nostro studio è stato quello di analizzare le complicanze post-operatorie precoci (entro 30 giorni dall’intervento) in un gruppo di pazienti trattati con CRT neo-adiuvante e chirurgia (TME), comparato con un altro gruppo di pazienti trattati solo con l’intervento chirurgico e di identificare possibili fattori prognostici associati con la morbidità post-operatoria nei soli soggetti trattati con terapia neo-adiuvante.
Displacement-noise-free gravitational-wave detection with two Fabry-Perot cavities
Creators: name: Rakhubovsky, Andrey A.
name: Vyatchanin, Sergey P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We propose two detuned Fabry-Perot cavities, each pumped through both the mirrors, positioned in line as a toy model of the gravitational-wave (GW) detector free from displacement noise of the test masses. It is demonstrated that the noise of cavity mirrors can be completely excluded in a proper linear combination of the cavities output signals. This model is illustrated by a simplified round trip model (without Fabry-Perot cavities). We show that in low-frequency region the obtained displacement-noise-free response signal is stronger than the one of the interferometer recently proposed by S.Kawamura and Y.Chen.
description: 10 pages, 5 figures
Kinetic phase diagram for a binary system near the transition to diffusionless solidification
Creators: name: Buchbinder, G. L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The rapid solidification of a binary mixture in the region of the interface velocities $V$ close to the diffusion speed in the bulk of the liquid phase $V_D$ is considered within the framework of the local nonequilibrium approach. In this high-speed region the derivation of the analytical expression for the response function "temperature-velocity" representing kinetic phase diagram is given without using the concept of the equilibrium phase diagram. The modes of movement of the interface both without and with the drag effect are analyzed. It is shown that the drag effect can be accompanied by a local interface temperature maximum at $V = V_D$.
description: 13 pages, 1 figure, Accepted for publication in the EPL
Characterizing neutrino and neutron fluxes from the Spallation Neutron Source for the COHERENT experiment
Creators: name: Rapp, Rebecca
Publisher: name: Carnegie Mellon University
Year: 2022
Subjects: subject: 20202 Nuclear Physics
subject: FOS: Physical sciences
subject: 20203 Particle Physics

description: Coherent elastic neutrino-nucleus scattering (CEvNS), a process by which a neutrino scatters from the whole nucleus, has been observed by the COHERENT collaboration in multiple detectors using pulsed neutrinos produced by the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory. This work contributes to the improved understanding of neutron and neutrino fluxes, which all COHERENT subsystems use to interpret their observations, as COHERENT transitions from discovery to precision measurements of CEvNS. In the first half of this work, we walk through the prediction of the neutrino flux and spectra at the SNS using Geant4 simulation, and establish that there is an associated 10% uncertainty on these calculations due to a lack of pion-production data for SNS operating conditions. This large systematic is now the dominant uncertainty limiting COHERENT’s precision physics goals. To contribute to the reduction of this uncertainty, we also perform design studies for a new deployed D2O detector to experimentally normalize our neutrino flux. The only observable signature of CEvNS is a low-energy nuclear recoil, which means neutrons cause a similar signal to neutrinos in our sensitive detectors. In the second half of this work, we transition to the characterization of the beam-related neutron flux from the SNS. We monitor the neutron flux near COHERENT detectors using a dedicated subsystem: the Multiplicity and Recoil Spectrometer (MARS). In this work, we simulate this mobile, Gd-doped plastic scintillator and begin to develop a neutron response matrix that can be used to unfold the incident neutron spectrum. We also perform a rate analysis to study the incoming flux at multiple locations near our CEvNS detectors.
Transport and drag in undoped electron-hole bilayers
Creators: name: Hwang, E. H.
name: Sarma, S. Das
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate transport and Coulomb drag properties of semiconductor-based electron-hole bilayer systems. Our calculations are motivated by recent experiments in undoped electron-hole bilayer structures based on GaAs-AlGaAs gated double quantum well systems. Our results indicate that the background charged impurity scattering is the most dominant resistive scattering mechanism in the high-mobility bilyers. We also find that the drag transresistivity is significantly enhanced when the electron-hole layer separation is small due to the exchange induced renormalization of the single layer compressibility.
description: 7 pages 3 figures
synthesis and characterization of new polymeric biomaterials for pharmaceuticals applications by click chemistry
Creators: name: Tirino, Pasquale
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2013

description: This research is included in wider field of synthesis and characterization of
polymeric biomaterials for pharmaceutical applications. In particular, has been
developed a general synthetic strategy based on click chemistry suitable for a very
large molecular weight range: from 1000 to 200000 dalton. The main advantages of
this strategy is to be found in the simplicity of the characterization of synthetic
intermediates, essentially 1H-NMR and FT-IR, and the possibility to make useful as
point of couplig any functional group generally present in polymers such as –OH, -
NH2 or -COOH
Pyrolysis of oil shale in a spouted bed pyrolyser
Creators: name: Tam, Tina Sui-Man
Publisher: name: University of British Columbia
Year: 2010

description: Pyrolysis of a New Brunswick oil shale has been studied in a 12.8cm diameter spouted bed reactor. The aim of the project was to study the effect of pyrolysis temperature, shale particle size, feed rate and bed material on oil yield. Gas and spent shale yields were also determined. Shale of different particle size ranging from 0.5mm to 4mm was studied using an electrically heated reactor containing sand or spent shale which was spouted with nitrogen or nitrogen/carbon dioxide mixtures. For a given particle size and feed rate, there is a maximum in oil yield with temperature. For particles of 1-2mm at a feed rate of about 1.4kg/hr, the optimum temperature is at 475°C with an oil yield of 7.1% which represents 89.3% of the modified Fischer Assay yield. For the 2-4mm and the same feed rate, the optimum temperature is 505°C with an oil yield equal to 7.4% which is 94.3% of the modified Fischer Assay value. At a fixed temperature of about 500°C, the oil yield increases with increasing particle size. This trend is in agreement with the Fischer Assay values which showed oil yields increasing from 5.2% to about 8% as the particle size was increased. In the spouted bed, the oil yield decreases as the oil shale feed rate increases at a given temperature. The use of spent shales as the spouting solids in the bed also has a negative effect on oil yield. The gas yields which were low (less than 2.1%) and difficult to measure do not seem to be affected by particle sizes, feed rate and bed material. Hydrogen, methane and other hydrocarbons are produced in very small amounts. C0₂ and CO are not released in measurable yield in the experiments. The trend of the spent shale yield has not been successfully understood due to the unreliability of the particle collection results. Attrition of the spent shale appears to be a serious problem. Results of the experiments are rationalized with the aid of a kinetic model in which the kerogen in the oil shale decomposes to yield a bitumen and other by products and the bitumen undergoes further decomposition into oil. The spouted bed is treated as a backmixed reactor with respect to the solids. A heat transfer model is used to predict the temperature rise of the shale entering the pyrolyzer.
CAPACITÀ SISMICA DI EDIFICI MONUMENTALI IN MURATURA
Creators: name: Lucibello, Giuseppe
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2013

description: Il tema trattato nella tesi è il comportamento sismico di edifici monumentali; la tesi è divisa in due parti principali di cui la prima riguardante gli edifici monumentali ecclesiastici a pianta basilicale, la seconda tratta invece l'analisi sismica di edifici multipiano.
Con riferimento agli edifici a pianta basilicale sono state analizzate le criticità insite nell'impiego dell'analisi modale con spettri di risposta per la valutazione delle azioni sismiche su modelli FEM globali degli edifici; da tali approfondimenti è emersa, confermando pienamente quanto prescritto dalle LL.GG. 2010 per la salvaguardia degli edifici monumentali, la necessità di un'analisi di dettaglio dei singoli macroelementi per valutare la sicurezza rispetto a fenomeni di collasso locale.
E'stata riscontrata, sempre nell'ambito degli edifici a pianta basilicale, una variabilità della capacità sismica strettamente connessa alla geometria, e quindi alla classe dei macroelementi; attraverso tali osservazioni traspare la possibilità di giungere a sviluppare in futuro procedure speditive di analisi della vulnerabilità.
Nella seconda parte della tesi, dedicata invece agli edifici multipiano, è stato analizzato un campione costituito da 2 edifici napoletani e 2 edifici aquilani che rappresentano, in termini di rapporti geometrici, una vasta popolazione di edifici presenti nell'Italia Centro-Meridionale.
Per tali strutture è stata valutata la capacità per carichi orizzontali applicando diversi strumenti di calcolo più o meno avanzati (Softwares: Abaqus, 3DMacro, 3Muri; Analisi Limite) riscontrando un sostanziale accordo tra i risultati ottenuti e pervenendo ad interessanti indicazioni sulla scelta degli interventi di consolidamento.
E' stato infine valutato il contributo che le catene, tradizionalmente adottate come accorgimento per evitare meccanismi di ribaltamento (del I tipo), sono in grado di offrire nell'incrementare la capacità di pareti sollecitate nel piano (meccanismi di II tipo).
Near-Extreme Black Holes and the Universal Relaxation Bound
Creators: name: Hod, Shahar
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A fundamental bound on the relaxation time τof a perturbed thermodynamical system has recently been derived, τ\geq \hbar/πT, where $T$ is the system's temperature. We demonstrate analytically that black holes saturate this bound in the extremal limit and for large values of the azimuthal number m of the perturbation field.
description: 2 Pages. Submitted to PRD on 5/12/2007
Applying Universal Verification Methodology on a Universal Asynchronous Receiver/ Transmitter design
Creators: name: Lin, Ling (M.S. In Engineering),
name: 0000-0002-5341-2709
Publisher: name: The University of Texas at Austin
Year: 2020
Subjects: UART
UVM

description: Universal asynchronous receiver/ transmitter (UART) is a computer hardware device that is used to transform user data to parallel and serial forms. The UART protocol is typically integrated in an Integrated Circuit (IC) which is used for serial communication over a computer or a peripheral device. The UART protocol accepts the input data as bytes and transmits the single bits in a sequential way. Usually, there will one or more UART peripherals which are integrated in microcontrollers and related devices which can support synchronous operation. The UART communication method may be done in three different ways: simplex (in one direction only), full duplex (both devices can receive and send data simultaneously) and half duplex (both devices can take turns to receive and transmit data). The structure of the data frame contains a single start bit, followed by next five to nine bits, depends on the code set employed. If there is a parity bit, then it will be placed after all the data bits. The next one or two bits are always logic high to indicate the stop bit(s). This technical report will demonstrate a verification methodology to verify WISHBONE UART IP Core using the Universal Verification Methodology (UVM) process.
Using two-stream theory to capture fluctuations of satellite-perceived TOA SW radiances reflected from clouds over ocean
Creators: name: Tornow, Florian
name: Domenech, Carlos
name: Barker, Howard W.
name: Preusker, René
name: Fischer, Jürgen
Publisher: name: Freie Universität Berlin
Year: 2020
Subjects: subject: two-stream theory
subject: TOA SW radiances
subject: clouds over ocean
subject: 500 Naturwissenschaften und Mathematik::550 Geowissenschaften, Geologie::551 Geologie, Hydrologie, Meteorologie

description: Shortwave (SW) fluxes estimated from broadband radiometry rely on empirically gathered and hemispherically resolved fields of outgoing top-of-atmosphere (TOA) radiances. This study aims to provide more accurate and precise fields of TOA SW radiances reflected from clouds over ocean by introducing a novel semiphysical model predicting radiances per narrow sun-observer geometry. This model was statistically trained using CERES-measured radiances paired with MODIS-retrieved cloud parameters as well as reanalysis-based geophysical parameters. By using radiative transfer approximations as a framework to ingest the above parameters, the new approach incorporates cloud-top effective radius and above-cloud water vapor in addition to traditionally used cloud optical depth, cloud fraction, cloud phase, and surface wind speed. A two-stream cloud albedo – serving to statistically incorporate cloud optical thickness and cloud-top effective radius – and Cox–Munk ocean reflectance were used to describe an albedo over each CERES footprint. Effective-radius-dependent asymmetry parameters were obtained empirically and separately for each viewing-illumination geometry. A simple equation of radiative transfer, with this albedo and attenuating above-cloud water vapor as inputs, was used in its log-linear form to allow for statistical optimization. We identified the two-stream functional form that minimized radiance residuals calculated against CERES observations and outperformed the state-of-the-art approach for most observer geometries outside the sun-glint and solar zenith angles between 20 and 70∘, reducing the median SD of radiance residuals per solar geometry by up to 13.2 % for liquid clouds, 1.9 % for ice clouds, and 35.8 % for footprints containing both cloud phases. Geometries affected by sun glint (constituting between 10 % and 1 % of the discretized upward hemisphere for solar zenith angles of 20 and 70∘, respectively), however, often showed weaker performance when handled with the new approach and had increased residuals by as much as 60 % compared to the state-of-the-art approach. Overall, uncertainties were reduced for liquid-phase and mixed-phase footprints by 5.76 % and 10.81 %, respectively, while uncertainties for ice-phase footprints increased by 0.34 %. Tested for a variety of scenes, we further demonstrated the plausibility of scene-wise predicted radiance fields. This new approach may prove useful when employed in angular distribution models and may result in improved flux estimates, in particular dealing with clouds characterized by small or large droplet/crystal sizes.
Additional file 2 of LncRNA FTO-IT1 promotes glycolysis and progression of hepatocellular carcinoma through modulating FTO-mediated N6-methyladenosine modification on GLUT1 and PKM2
Creators: name: Wang, Fan
name: Hu, Yuhang
name: Wang, Hongda
name: Hu, Ping
name: Xiong, Hewei
name: Zeng, Zhu
name: Han, Shengbo
name: Wang, Decai
name: Wang, Jie
name: Zhao, Yong
name: Huang, Yan
name: Zhuo, Wenfeng
name: Lv, Guozheng
name: Zhao, Gang
Publisher: name: figshare
Year: 2024
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2. Supplementary methods.
General entanglement-assisted quantum error-correcting codes
Creators: name: Hsieh, Min-Hsiu
name: Devetak, Igor
name: Brun, Todd
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Entanglement-assisted quantum error-correcting codes (EAQECCs) make use of pre-existing entanglement between the sender and receiver to boost the rate of transmission. It is possible to construct an EAQECC from any classical linear code, unlike standard QECCs which can only be constructed from dual-containing codes. Operator quantum error-correcting codes (OQECCs) allow certain errors to be corrected (or prevented) passively, reducing the complexity of the correction procedure. We combine these two extensions of standard quantum error correction into a unified entanglement-assisted quantum error correction formalism. This new scheme, which we call entanglement-assisted operator quantum error correction (EAOQEC), is the most general and powerful quantum error-correcting technique known, retaining the advantages of both entanglement-assistance and passive correction. We present the formalism, show the considerable freedom in constructing EAOQECCs from classical codes, and demonstrate the construction with examples.
description: 7 pages, no figure
Experimental culture of duckweed (Lemnaceae) for treatment of domestic sewage
Creators: name: Whitehead, Alan Joseph
Publisher: name: University of British Columbia
Year: 2010

description: The culture of the floating aquatic plant, duckweed (Lemna minor), as an agent of domestic sewage treatment was studied in a clarification lagoon at Duncan, British Columbia, during the summer of 1986. Duckweed was grown in plastic fabric tanks (3700 L volume, 1.85 m deep, 2.25 m² water surface area) receiving 290 L of sewage per day or 12.8 d hydraulic retention time. Three treatments were tested: cropped duckweed, uncropped duckweed, and no duckweed. Water quality, plant growth and tissue composition were monitored on the basis of weekly sampling. Removals of VSS, COD, total-N and total-P were greater in the presence than in the absence of duckweed. Unmeasured imports of N and P masked the effect of plant uptake on reducing nutrient concentrations in the tank effluents. Sustainable duckweed yields were possible at both cropping rates, despite a severe infestation of aphids. Dry matter yields of 2.0 g/m².d and 6.4 g/m².d were obtained at the 15%/week and 50%/week cropping rates, respectively. Duckweed contained 6.1 - 6.4% N and 1.1 - 1.4% P (dry wt.). Plant harvest removed 0.14 g N/m².d and 0.03 g P/m².d at the 15%./week and 0.31 g N/m².d and 0.07 g P/m².d at the 50%/week cropping rates. Cropping increased the fraction of total-N and total-P loading that could be removed via plant uptake. Performance of the experimental treatments is analyzed in the light of concentration data, mass balances, and mass flux estimations. Possible sources of unmeasured N and P imports are discussed, and recommendations for future research are provided. The results suggest that duckweed may hold promise under certain conditions as a means of polishing sewage lagoon effluent.
QCD Contributions to the Froissart bound for the total cross-section
Creators: name: Achilli, A.
name: Grau, A.
name: Pancheri, G.
name: Srivastava, Y. N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the effect of infrared soft gluons on the asymptotic behaviour of the total cross-section. We use a singular but integrable expression for the strong coupling constant in the infrared limit and relate its behaviour to the satisfaction of the Froissart bound, giving a specific phenomenological example.
description: 7 pages, 1 figure, presented at Hadron structure 07, HS07, Modra-Harmonia, September 3-7, 2007
Additional file 3 of LncRNA FTO-IT1 promotes glycolysis and progression of hepatocellular carcinoma through modulating FTO-mediated N6-methyladenosine modification on GLUT1 and PKM2
Creators: name: Wang, Fan
name: Hu, Yuhang
name: Wang, Hongda
name: Hu, Ping
name: Xiong, Hewei
name: Zeng, Zhu
name: Han, Shengbo
name: Wang, Decai
name: Wang, Jie
name: Zhao, Yong
name: Huang, Yan
name: Zhuo, Wenfeng
name: Lv, Guozheng
name: Zhao, Gang
Publisher: name: figshare
Year: 2024
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 3: Supplementary Table S1. The sequence of PCR primers. Supplementary Table S2. The sequence of siRNA. Supplementary Table S3. The information of antibodies used. Supplementary Table S4. Mass spectrometry data of proteins and peptides pulled down by FTO-IT1. Supplementary Table S5. The 63 glycolysis-related genes. Supplementary Table S6. Three putative c-Myc binding sites of FTO-IT1 promoter using JASPAR database. Supplementary Table S7. Clinical information and relative expression of mRNA of 92 patients with HCC. Supplementary Table S8. Correlation between FTO-IT1 and clinical characteristics of 92 patients with HCC.
Implementation of two-field inflation for cosmic linear anisotropy solving system
Creators: name: Morales-Martínez, Braulio
name: Arciniega, Gustavo
name: Jaime, Luisa G.
name: Piccinelli, Gabriella
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We outline the modifications in the numerical Boltzmann code Cosmic Linear Anisotropy Solving System (CLASS) in order to include extra inflationary fields. The functioning of the code is first described, how and where modifications are meant to be done are later explained. In the present study, we focus on the modifications needed for the implementation of a two-field inflationary model, with canonical kinetic terms and a polynomial potential with no cross terms, presenting preliminary results for the effect of the second field on the spectra. The adaptability of the code is exploited, making use of the classes and structures of C and the generic Runge-Kutta integration tool provided by the program.
description: 5 pages, 2 figures, IWARA
Enhancement of microwave squeezing via parametric down-conversion in a superconducting quantum circuit
Creators: name: Han, Kong
name: Wang, Yimin
name: Zhang, Guo-Qiang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We propose an experimentally accessible superconducting quantum circuit, consisting of two coplanar waveguide resonators (CWRs), to enhance the microwave squeezing via parametric down-conversion (PDC). In our scheme, the two CWRs are nonlinearly coupled through a superconducting quantum interference device embedded in one of the CWRs. This is equivalent to replacing the transmission line in a flux-driven Josephson parametric amplifier (JPA) by a CWR, which makes it possible to drive the JPA by a quantized microwave field. Owing to this design, the PDC coefficient can be considerably increased to be about tens of megahertz, satisfying the strong-coupling condition. Using the Heisenberg-Langevin approach, we numerically show the enhancement of the microwave squeezing in our scheme. In contrast to the JPA, our proposed system becomes stable around the critical point and can generate stronger transient squeezing. In addition, the strong-coupling PDC can be used to engineer the photon blockade.
description: 11 pages, 6 figures
The surface brightness - colour relations based on eclipsing binary stars and calibrated with Gaia EDR3
Creators: name: Graczyk, D.
name: Pietrzyński, G.
name: Gałan, C.
name: Gieren, W.
name: Tkachenko, A.
name: Anderson, R. I.
name: Gallenne, A.
name: Górski, M.
name: Hajdu, G.
name: Kałuszyński, M.
name: Karczmarek, P.
name: Kervella, P.
name: Maxted, P. F. L.
name: Nardetto, N.
name: Narloch, W.
name: Pavlovski, K.
name: Pilecki, B.
name: Pych, W.
name: Southworth, J.
name: Storm, J.
name: Suchomska, K.
name: Taormina, M.
name: Villanova, S.
name: Wielgórski, P.
name: Zgirski, B.
name: Konorski, P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The surface brightness -- colour relation (SBCR) is a basic tool in establishing precise and accurate distances within the Local Group. Detached eclipsing binary stars with accurately determined radii and trigonometric parallaxes allow for a calibration of the SBCRs with unprecedented accuracy. We analysed four nearby eclipsing binary stars containing late F-type main sequence components: AL Ari, AL Dor, FM Leo and BN Scl. We determined very precise spectroscopic orbits and combined them with high precision ground- and space-based photometry. We derived the astrophysical parameters of their components with mean errors of 0.1% for mass and 0.4% for radius. We combined those four systems with another 24 nearby eclipsing binaries with accurately known radii from the literature for which $Gaia$ EDR3 parallaxes are available, in order to derive the SBCRs. The resulting SBCRs cover stellar spectral types from B9 V to G7 V. For calibrations we used Johnson optical $B$ and $V$, $Gaia$ $G_{\rm BP}$ and $G$ and 2MASS $JHK$ bands. The most precise relations are calibrated using the infrared $K$ band and allow to predict angular diameters of A-, F-, and G-type dwarf and subgiant stars with a precision of 1%.
description: Accepted for publication in Astronomy & Astrophysics, 17 pages
Substrate matters: Surface-polariton enhanced infrared nanospectroscopy of molecular vibrations
Creators: name: Autore, Marta
name: Mester, Lars
name: Goikoetxea, Monika
name: Hillenbrand, R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Infrared nanospectroscopy based on Fourier transform infrared near-field spectroscopy (nano-FTIR) is an emerging nanoanalytical tool with large application potential for label-free mapping and identification of organic and inorganic materials with nanoscale spatial resolution. However, the detection of thin molecular layers and nanostructures on standard substrates is still challenged by weak signals. Here, we demonstrate a significant enhancement of nano-FTIR signals of a thin organic layer by exploiting polariton-resonant tip-substrate coupling and surface polariton illumination of the probing tip. When the molecular vibration matches the tip-substrate resonance, we achieve up to nearly one order of magnitude signal enhancement on a phonon-polaritonic quartz (c-SiO2) substrate, as compared to nano-FTIR spectra obtained on metal (Au) substrates, and up to two orders of magnitude when compared to the standard infrared spectroscopy substrate CaF2. Our results will be of critical importance for boosting nano-FTIR spectroscopy towards the routine detection of monolayers and single molecules.
Quantum Hall ferromagnetic states and spin-orbit interactions in the fractional regime
Creators: name: Chesi, S.
name: Loss, D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The competition between the Zeeman energy and the Rashba and Dresselhaus spin-orbit couplings is studied for fractional quantum Hall states by including correlation effects. A transition of the direction of the spin-polarization is predicted at specific values of the Zeeman energy. We show that these values can be expressed in terms of the pair-correlation function, and thus provide information about the microscopic ground state. We examine the particular examples of the Laughlin wavefunctions and the 5/2-Pfaffian state. We also include effects of the nuclear bath.
title: Education, Marriage, and Professionalization: The Modern Qatari Woman’s Dilemma
Creators: name: Rajakumar, Mohanalakshmi
name: Bengali, Mariam
name: Shahzad, Rumsha
name: Kane, Tanya
Publisher: name: Humboldt-Universität zu Berlin
Year: 2017
Subjects: subject: arabian gulf
subject: Frauen
subject: gender norms
subject: Geschlechterrolle
subject: marriage
subject: Normen
subject: women
subject: ddc:303

description: We offer observations about the obstacles to promoting a gender-inclusive labor force based on two sets of data on female Qatari students and professionals. Data set 1 is the result of a project pertaining to the disparity between education and employment among Qatari women. We surveyed 274 young women between the ages of 17 and 25 with the aim of understanding some of the reasons why Qatari women were not entering the workforce. Data set 2 derives from 350 focus groups and interviews with female students to assess the effect their tertiary education had on their marriageability. While education has delayed the age of marriage when this generation of women is compared with that of their mothers and grandmothers, the social expectations of becoming a wife and ensuing motherhood mean that marriage can restrict a woman’s working outside the home.
Biophysical and structural characterisation of functional bacterial amyloid secretion systems
Creators: name: Stylianou, Fisentzos Andreas
Publisher: name: Imperial College London
Year: 2020

description: Amyloids are characterised by their innate capacity to aggregate into insoluble fibrils, which are commonly recognised for their cytotoxicity and association to neurodegenerative diseases. Their unique physicochemical properties are exploited by bacteria for various functional roles, including the formation of extracellular matrix that is linked to biofilm construction and antimicrobial resistance. The curli fimbriae of Escherichia coli was the first functional bacterial amyloid (FuBA) to be discovered. Two operons encode a curli secretion system that is comprised of several distinct proteins including curli-forming subunits, chaperones, amyloid inhibitors, and an outer-membrane (OM) transporter. Amyloid secretion systems enable FuBA fibril formation, whilst minimising their cytotoxicity to the host-cell. A functional amyloid in Pseudomonas (Fap) operon was recently identified in the Pseudomonas genus encoding a novel FuBA secretion system. Unlike the curli system, detailed insight into the Fap system is lacking. The curli and Fap secretion systems export biochemically similar amyloid forming subunits; however, their FuBA secretion systems are genetically distinct. The biophysical studies of this thesis sought to provide further insight into the structure and function of FapF, a uniquely structured OM transporter, as well as FapD, a periplasm-residing protein that is predicted to serve a proteolytic and chaperoning role within the Fap system. Previous reports demonstrate the evolutionary co-conservation of FapF and FapD, suggesting their functional co- dependence. In this thesis, a combination of biophysical techniques, including nuclear magnetic resonance (NMR) spectroscopy, are used to demonstrate the presence of a unique, asymmetric, parallel trimeric coiled-coil domain within the periplasmic N- terminus of FapF. Furthermore, a transient interaction between FapF and FapD was identified under solution conditions. Protocols that enable the near-native study of the FapF OM domain by solution-state NMR spectroscopy were also optimised. These studies pave the way for future research to enhance our mechanistic understanding of FuBA secretion systems, with aim to increase our capacity to modulate FuBA formation.