cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The effect of litter size on the developmental pattern of cholesterol synthesis in intestinal and white adipose tissue of neonatal rats
Creators: name: Kroeger, Steven Hugh
Publisher: name: University of British Columbia
Year: 2010

description: This study was performed to determine the rates of in vitro cholesterol synthesis, as measured by ³H incorporation into cholesterol, in gluteal white adipose tissue and the intestine of infant rats during the early postnatal period. The reason for studying these parameters was to hopefully further elucidate the cause of the differences in blood cholesterol levels between rats raised in different litter sizes. Rats were raised in small (4/dam), medium (8/dam) and large (14/dam) litters. The rate of cholesterol synthesis in the proximal and distal region of the small intestine decreased from birth to a low 14 days later and then increased again by day 21. The rate of the decreases in cholesterol synthesis, from birth to the low on day 14, varied amongst the three litter sizes; the rate of synthesis in both regions of the intestine on day 7 was lowest in the larger litter, and was not significantly different from the values seen on day 14. Previous work has shown that plasma cholesterol levels were low in rats from large litters on day 7, thus in the early postnatal period low rates of intestinal cholesterol synthesis correlate with low plasma cholesterol values. After weaning, on day 21, the rate of synthesis in distal intestine was higher than that of proximal intestine in the medium and small litters, whereas the opposite was found in the larger litter. Cholesterol synthesis in gluteal white adipose tissue remained at a very low rate up to 21 days in the small and medium sized litters. In contrast, the rate of synthesis increased continuously in the large litter to nearly threefold the rate of that in the other two litter sizes on day 21. This study has shown that the rates of cholesterol synthesis in intestinal and adipose tissue can be altered during the early postnatal period by raising the rats in different litter sizes. Also, the pattern of development in the rates of cholesterol synthesis as measured by ³H incorporation into cholesterol are in general agreement with results reported for the activity of 3-hydroxy-3-methylglutaryl coenzyme A reductase for this same period in development.
Efficiency of the oxygenic photosynthesis on Earth-like planets in the habitable zone
Creators: name: Covone, Giovanni
name: Ienco, Riccardo M.
name: Cacciapuoti, Luca
name: Inno, Laura
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Oxygenic photosynthesis is the most important biochemical process in Earth biosphere and likely very common on other habitable terrestrial planets, given the general availability of its input chemical ingredients and of light as source of energy. It is therefore important to evaluate the effective possibility of oxygenic photosynthesis on planets around stars as a function of their spectral type and the planet-star separation. We aim at estimating the photon flux, the exergy and the exergetic efficiency of the radiation in the wavelength range useful for the oxygenic photosynthesis as a function of the host star effective temperature and planet-star separation. We compute analytically these quantities and compare our results with the estimates for the small sample of known Earth-like planets. We find that exergy is an increasing function of the star effective temperature, within the range 2600-7200 K. It depends both on the star-planet separation and the star effective temperature. Biospheres on exoplanets around cool stars might be generally light-limited. So far, we have not observed terrestrial planets comparable to Earth in terms of useful photon flux, exergy and exergetic efficiency.
description: Accepted for publication on MNRAS
Daniel Logemann, Das polnische Fenster. Deutsch-polnische Kontakte im staatssozialistischen Alltag Leipzigs 1972-1989
Creators: name: Pelka, Anna
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2013

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 62 Nr. 4 (2013)
Tidal Disruption Flares from Recoiling Supermassive Black Holes
Creators: name: Komossa, Stefanie
name: Merritt, David
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Supermassive black holes ejected from galaxy nuclei by gravitational wave recoil will carry a retinue of bound stars, even in the absence of an accretion disk. We discuss the observable signatures related to these stars, with an emphasis on electromagnetic flares from stars that are tidally disrupted by the black hole. We calculate disruption rates for the bound, and the unbound, stars. The rates are smaller than, but comparable to, rates for non-recoiling black holes. A key observational consequence is the existence of powerful off-nuclear and intergalactic X-ray flares. We also discuss other observable signatures associated with the bound stars, including episodic X-ray emission from accretion due to stellar mass loss; intergalactic supernovae; and feedback trails.
description: ApJ Letters, in press (2 figures, one in color)
Piotr Górecki, Economy, Society, and Lordship in Medieval Poland, 1100-1250
Creators: name: Irgang, Winfried
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1995

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 44 Nr. 3 (1995)
ACTIVIA: Calculation of Isotope Production Cross-sections and Yields
Creators: name: Back, J. J.
name: Ramachers, Y. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We present a C++ computer package, ACTIVIA, that can calculate target-product cross-sections and the production and decay yields of isotopes from cosmic ray activation using data tables and semi-empirical formulae. We describe the structure and user interface of the computer code as well as provide comparisons between the calculations and experimental results. We also outline suggestions on how the code can be improved and extended for other applications.
description: 10 pages, 9 postscript figures, accepted for publication in Nucl. Instr. and Meth. A. Changes in revised version: added more discussion to the results and summary sections, provided a full list of references for data used in the paper and changed the format of various tables. The results and plots remain unchanged
Stysaptera Heiss 1999
Creators: name: Heiss, Ernst
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Aradidae
Stysaptera

description: Genus Stysaptera Heiss, 1999
Stysaptera Heiss, 1999: 578. Type species: Stysaptera ikalalao Heiss, 1999. Ref.: Heiss, 1999 (key)
description: Published as part of Heiss, Ernst, 2012, Annotated catalogue of the flat bug family Aradidae Brullé, 1836 of Madagascar and adjacent islands (Hemiptera: Heteroptera), pp. 45-63 in Zootaxa 3426 (1) on page 50, DOI: 10.11646/zootaxa.3426.1.3, http://zenodo.org/record/214110
Hot-spot model for accretion disc variability as random process
Creators: name: Pechacek, T.
name: Karas, V.
name: Czerny, B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Theory of random processes provides an attractive mathematical tool to describe the fluctuating signal from accreting sources, such as active galactic nuclei and Galactic black holes observed in X-rays. These objects exhibit featureless variability on different timescales, probably originating from an accretion disc. We study the basic features of the power spectra in terms of a general framework, which permits semi-analytical determination of the power spectral density (PSD) of the resulting light curve. We consider the expected signal generated by an ensemble of spots randomly created on the accretion disc surface. Spot generation is governed by Poisson or by Hawkes processes. We include general relativity effects shaping the signal on its propagation to a distant observer. We analyse the PSD of a spotted disc light curve and show the accuracy of our semi-analytical approach by comparing the obtained PSD with the results of Monte Carlo simulations. The asymptotic slopes of PSD are 0 at low frequencies and they drop to -2 at high frequencies, usually with a single frequency break. More complex two-peak solutions also occur. The amplitude of the peaks and their frequency difference depend on the inherent timescales of the model. At intermediate frequencies, the intrinsic PSD is influenced by the individual light curve profile as well as by the type of the underlying process. However, even in cases when two Lorentzians seem to dominate the PSD, it does not necessarily imply that two single oscillation mechanisms operate simultaneously. Instead, it may well be the manifestation of the avalanche mechanism. The main advantage of our approach is an insight in the model functioning and the fast evaluation of the PSD.
description: 18 pages, 9 figures; Astronomy & Astrophysics accepted
Human-Centric Issues in eHealth App Development and Usage: A Preliminary Assessment
Creators: name: Shamsujjoha, Md.
name: Grundy, John
name: Li, Li
name: Khalajzadeh, Hourieh
name: Lu, Qinghua
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Health-related mobile applications are known as eHealth apps. These apps make people more aware of their health, help during critical situations, provide home-based disease management, and monitor/support personalized care through sensing/interaction. eHealth app usage is rapidly increasing with a large number of new apps being developed. Unfortunately, many eHealth apps do not successfully adopt Human-Centric Issues (HCI) in the app development process and its deployment stages, leading them to become ineffective and not inclusive of diverse end-users. This paper provides an initial assessment of key human factors related to eHealth apps by literature review, existing guidelines analysis, and user studies. Preliminary results suggest that Usability, Accessibility, Reliability, Versatility, and User Experience are essential HCIs for eHealth apps, and need further attention from researchers and practitioners. Therefore, outcomes of this research will look to amend support for users, developers, and stakeholders of eHealth apps in the form of improved actionable guidelines, best practice examples, and evaluation techniques. The research also aims to trial the proposed solutions on real-world projects.
Start-up shear of spherocylinder packings: effect of friction
Creators: name: Heussinger, Claus
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the response to shear deformations of packings of long spherocylindrical particles that interact via frictional forces with friction coefficient $μ$. The packings are produced and deformed with the help of molecular dynamics simulations combined with minimization techniques performed on a GPU. We calculate the linear shear modulus $g_\infty$, which is orders of magnitude larger than the modulus $g_0$ in the corresponding frictionless system. The motion of the particles responsible for these large frictional forces is governed by and increases with the length $\ell$ of the spherocylinders. One consequence of this motion is that the shear modulus $g_\infty$ approaches a finite value in the limit $\ell\to\infty$, even though the density of the packings vanishes, $ρ\propto\ell^{-2}$. By way of contrast, the frictionless modulus decreases to zero, $g_0\sim\ell^{-2}$, in accordance with the behavior of density. Increasing the strain beyond a value $γ_c\sim μ$, the packing undergoes a "shear-thinning" transition from the large frictional to the smaller frictionless modulus when contacts saturate at the Coulomb inequality and start to slide. In this regime, sliding friction contributes a "yield stress" $σ_y=g_\inftyγ_c$ and the stress behaves as $σ=σ_y+g_0γ$. The interplay between static and sliding friction gives rise to hysteresis in oscillatory shear simulations.
Quantum gravity as a Fermi liquid
Creators: name: Alexander, Stephon H. S.
name: Calcagni, Gianluca
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Superconductivity (cond-mat.supr-con)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present a reformulation of loop quantum gravity with a cosmological constant and no matter as a Fermi-liquid theory. When the topological sector is deformed and large gauge symmetry is broken, we show that the Chern-Simons state reduces to Jacobson's degenerate sector describing 1+1 dimensional propagating fermions with nonlocal interactions. The Hamiltonian admits a dual description which we realize in the simple BCS model of superconductivity. On one hand, Cooper pairs are interpreted as wormhole correlations at the de Sitter horizon; their number yields the de Sitter entropy. On the other hand, BCS is mapped into a deformed conformal field theory reproducing the structure of quantum spin networks. When area measurements are performed, Cooper-pair insertions are activated on those edges of the spin network intersecting the given area, thus providing a description of quantum measurements in terms of excitations of a Fermi sea to superconducting levels. The cosmological constant problem is naturally addressed as a nonperturbative mass-gap effect of the true Fermi-liquid vacuum.
description: 45 pages, 1 figure; v2: discussion improved, version accepted by Found. Phys
The angular distribution of diffuse solar radiation over the sky hemisphere
Creators: name: Stewart, Kathleen Elizabeth
Publisher: name: University of British Columbia
Year: 2010

description: The use of a video-based imaging system in conjunction with measurements of sky radiance made by a Linke-Feussner actinometer provide the means for determining the angular distribution of diffuse solar radiation over the sky hemisphere. Development of this fast-response, high resolution measurement procedure allows analyses to be made under complex radiative regimes in which earlier experimental procedures were not satisfactory. Investigations into the directional distribution of diffuse radiance confirm the anisotropy of the pattern, dispelling any assumption that the distribution over the sky hemisphere is isotropic. Measurements of diffuse radiance act as a calibration for the brightness information derived from the video imagery of the sky. The appropriate transformation from brightness to radiance may be determined once the calibration procedure has been accomplished. Functional analysis is presented as the statistical tool most useful for determining the relationship underlying the calibration curves. This study discusses the advantages of using video imaging techniques in a climatological application and shows how this type of system can yield valuable information concerning radiative characteristics otherwise unavailable with conventional measurement techniques.
Exact solutions for the populations of the n-level ion
Creators: name: Taylor, Michael
name: Vilchez, Jose Manuel
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a matrix solution to the full equations of statistical equilibrium that give the energy level populations of collisionally-excited ions in photoionised gaseous nebulae. The rationale for such a calculation is to maintain a parity between improvements in the quantum-mechanically evaluated values for collision strengths and transition probabilities from the Iron and Opacity Projects on the one hand, and 3D photoionisation codes such as MOCASSIN and astrophysical software for producing nebular diagnostics such as the Nebular package for IRAF, on the other. We have taken advantage of the fact that mathematics programs such as MATLAB and Mathematica have proven to be very adept at symbolic manipulation providing a route to exact solutions for the n-level ion. In particular, we have avoided the substitution of estimated values. We provide the matrix solution for the 5-level ion as an example and show how the equations faithfully reduce to the exact solution for the 3-level ion. Through the forbidden line ratio R23, we compare the exact solution with a) that obtained from the observed emission of the spherical planetary nebula Abell 39, b) 3D Monte-Carlo photoionisation modelling of the same nebula, c) the approximate 5-level program TEMDEN and d) the exact 3-level ion. The general solution presented here means that programs for the calculation of level populations can obtain solutions for ions with a user-specified number of excited levels. The use of a separate and updatable database of atomic and ionic constants such as that provided by NIST, means that software of more general application can now be made available; particularly for the study of high excitation objects such as active galactic nebulae (AGNs) and supernovae (SNs) where higher excited levels become significant.
description: 8 pages, 1 figure and 1 table. Submitted to MNRAS
Additional file 1 of Expectations and educational needs of rheumatologists, rheumatology fellows and patients in the field of precision medicine in Canada, a quantitative cross-sectional and descriptive study
Creators: name: Ruel-Gagné, Sophie
name: Simonyan, David
name: Légaré, Jean
name: Bessette, Louis
name: Fortin, Paul R.
name: Lacaille, Diane
name: Dogba, Maman Joyce
name: Michou, Laëtitia
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. Survey for patients (contains the English version of the survey for patients).
Analysis of a recent experimental test of Bell inequalities violating quantum predictions
Creators: name: Santos, Emilio
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A recent experiment by Brida et al. (arXiv:0705.0439 [quant-ph]) is analyzed with the conclusion that is shows a violation of standard quantum predictions. A simple local hidden variables model is studied which is compatible with the empirical results and fits fairly well the deviation from the quantum predictions.
description: 10 pages, no figures
Transceiver Noise Characterization based on Perturbations
Creators: name: Vaquero-Caballero, F. J.
name: Ives, D. J.
name: Savory, S. J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, we discuss a new technique for measuring transceiver noise, skew, and for the detection of uncompensated transceiver impairments. The method consists on the introduction of frequency domain notch or notches at the transmitter, which allows to estimate of the Signal-to-Noise and Distortion Ratio (SNDR) at different stages over the transmission chain. The proposed technique requires the detection of the signal spectrum using either: a modem receiver, an Optical Spectrum Analyzer (OSA), an oscilloscope, or an Electrical Spectrum Analyzer (ESA), depending on the stage where the spectrum is measured and requiring minimal processing of the received signal. Our analysis is focused on Ciena's WaveLogic Ai commercial transceiver and a 95 Gbaud DAC. We demonstrate that symmetrically placed frequency domain notches can be used to mitiguate the influence of crosstalk on the SNDR estimates. Finally, we show how a single notch spectrum can be used to detect and compensate for impairments, and we perform skew estimation as an example.
Additional file 3 of Expectations and educational needs of rheumatologists, rheumatology fellows and patients in the field of precision medicine in Canada, a quantitative cross-sectional and descriptive study
Creators: name: Ruel-Gagné, Sophie
name: Simonyan, David
name: Légaré, Jean
name: Bessette, Louis
name: Fortin, Paul R.
name: Lacaille, Diane
name: Dogba, Maman Joyce
name: Michou, Laëtitia
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 3. Supplementary tables.
Comment on "Polarizability of the pion: No conflict between dispersion theory and chiral perturbation theory"
Creators: name: Fil'kov, L. V.
name: Kashevarov, V. L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The statement of the authors of the article Phys. Rev. C 77, 065211 (2008) that spurious singularities occur in the dispersion relation approach, where imaginary parts of the amplitudes of the process γγ->ππare saturated by the contributions of meson resonances by using Breit-Wigner expressions, is analyzed. It is shown that there are no any additional singularities in this approach and the disagreement between the predictions of the dispersion relations and the chiral perturbation theory for (α_1-β_1)_π^{\pm} remains.
description: 3 pages, final version appeared in Phys. Rev. C
Wilfried Heller (Hrsg.), Identitäten und Imaginationen der Bevölkerung in Grenzräumen. Ostmittel- und Südosteuropa im Spannungsfeld von Regionalismus, Zentralismus, europäischem Integrationsprozess und Globalisierung
Creators: name: Nithammer, Jasmin
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2013

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 62 Nr. 4 (2013)
Additional file 2 of Expectations and educational needs of rheumatologists, rheumatology fellows and patients in the field of precision medicine in Canada, a quantitative cross-sectional and descriptive study
Creators: name: Ruel-Gagné, Sophie
name: Simonyan, David
name: Légaré, Jean
name: Bessette, Louis
name: Fortin, Paul R.
name: Lacaille, Diane
name: Dogba, Maman Joyce
name: Michou, Laëtitia
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2. Survey for rheumatologists (contains the English version of the survey for rheumatologists and fellows).
The Evolution of Dusty Star Formation and Stellar Mass Assembly in Clusters: Results from the IRAC 3.6um, 4.5um, 5.8um and 8.0um Cluster Luminosity Functions
Creators: name: Muzzin, Adam
name: Wilson, Gillian
name: Lacy, Mark
name: Yee, H. K. C.
name: Stanford, S. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a catalogue of 99 candidate clusters and groups of galaxies in the redshift range 0.1 < z_{phot} < 1.3 discovered in the Spitzer First Look Survey (FLS). The clusters are selected by their R - 3.6um galaxy color-magnitude relation using the cluster red sequence algorithm. Using this cluster sample we compute the 3.6um, 4.5um, 5.8um, & 8.0um cluster luminosity functions (LFs). Similar to previous studies, we find that for the bands that trace stellar mass at these redshifts (3.6um, 4.5um) the evolution in M* is consistent with a passively evolving population of galaxies with a high formation redshift (z_{f} > 1.5). Using the 3.6um LF as a proxy for stellar luminosity we remove this component from the MIR (5.8um & 8.0um) cluster LFs and measure the LF of dusty star formation/AGN in clusters. We find that at z < 0.4 the bright end of the cluster 8.0um LF is well-described by a composite population of quiescent galaxies and regular star forming galaxies with a mix consistent with typical cluster blue fractions; however, at z > 0.4, an additional population of dusty starburst galaxies is required to properly model the 8.0um LFs. Comparison to field studies at similar redshifts shows a strong differential evolution in the field and cluster 8.0um LFs with redshift. At z ~ 0.65 8.0um-detected galaxies are more abundant in clusters compared to the field, but thereafter the number of 8.0um sources in clusters declines with decreasing redshift and by z ~ 0.15, clusters are underdense relative to the field by a factor of ~5. The rapid differential evolution between the cluster and field LFs is qualitatively consistent with recent field galaxy studies that show the star formation rates of galaxies in high density environments are larger than those in low density environments at higher redshift.
description: 31 pages, 24 figures, 2 tables, accepted for publication in the ApJ. For version with high resolution figures see http://www.astro.yale.edu/amuzzin/papers/ms.pdf
Scattering Hypervolume of Spin-Polarized Fermions
Creators: name: Wang, Zipeng
name: Tan, Shina
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We analyze the collision of three identical spin-polarized fermions at zero collision energy, assuming arbitrary finite-range potentials, and define the corresponding three-body scattering hypervolume $D_F$. The scattering hypervolume $D$ was first defined for identical bosons in 2008 by one of us. It is the three-body analog of the two-body scattering length. We solve the three-body Schrödinger equation asymptotically when the three fermions are far apart or one pair and the third fermion are far apart, deriving two asymptotic expansions of the wave function. Unlike the case of bosons for which $D$ has the dimension of length to the fourth power, here the $D_F$ we define has the dimension of length to the eighth power. We then analyze the interaction energy of three such fermions with momenta $\hbar\mathbf{k}_1$, $\hbar\mathbf{k}_2$ and $\hbar\mathbf{k}_3$ in a large periodic cubic box. The energy shift due to $D_F$ is proportional to $D_F/Ω^2$, where $Ω$ is the volume of the box. We also calculate the shifts of energy and pressure of spin-polarized Fermi gases due to a nonzero $D_F$ and the three-body recombination rate of spin-polarized ultracold atomic Fermi gases at finite temperatures.
description: 15 pages, 3 figures
Kadomtsev-Petviashvili equation: one-constraint method and lump pattern
Creators: name: Dong, Jie-Yang
name: Ling, Liming
name: Zhang, Xiaoen
Publisher: name: arXiv
Year: 2021
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: The Kadomtsev-Petviashvili reduction method is a crucial method to derive the solitonic solutions of (1+1) dimensional integrable system from high dimensional system. In this work, we explore to use the solutions of lower dimensional system to construct the solutions in the high dimensional one with the Darboux transformation. Especially, we utilize this method to disclose the relationship between the rogue wave and lump solutions. Under one-constraint method, the asymptotic analysis to the lump pattern of Kadomtsev-Petviashvili equation is given
description: 23pages, 4 figures
Revaler Schiffslisten 1425-1471 und 1479-1496
Creators: name: Sarnowsky, Jürgen
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1996

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 45 Nr. 4 (1996)
Generalized multifractality at spin quantum Hall transition
Creators: name: Karcher, Jonas F.
name: Charles, Noah
name: Gruzberg, Ilya A.
name: Mirlin, Alexander D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Generalized multifractality characterizes scaling of eigenstate observables at Anderson-localization critical points. We explore generalized multifractality in 2D systems, with the main focus on the spin quantum Hall (SQH) transition in superconductors of symmetry class C. Relations and differences with the conventional integer quantum Hall (IQH) transition are also studied. Using the field-theoretical formalism of non-linear sigma-model, we derive the pure-scaling operators representing generalizing multifractality and then "translate" them to the language of eigenstate observables. Performing numerical simulations on network models for SQH and IQH transitions, we confirm the analytical predictions for scaling observables and determine the corresponding exponents. Remarkably, the generalized-multifractality exponents at the SQH critical point strongly violate the generalized parabolicity of the spectrum, which implies violation of the local conformal invariance at this critical point.
Quasar Clustering at $25\kpch$ from a Complete Sample of Binaries
Creators: name: Myers, Adam D.
name: Richards, Gordon T.
name: Brunner, Robert J.
name: Schneider, Donald P.
name: Strand, Natalie E.
name: Hall, Patrick B.
name: Blomquist, Jeffrey A.
name: York, Donald G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present spectroscopy of binary quasar candidates selected from Data Release 4 of the Sloan Digital Sky Survey (SDSS DR4) using Kernel Density Estimation (KDE). We present 27 new sets of observations, 10 of which are binary quasars, roughly doubling the number of known $g < 21$ binaries with component separations of 3 to 6". Only 3 of 49 spectroscopically identified objects are non-quasars, confirming that the quasar selection efficiency of the KDE technique is $\sim95$%. Several of our observed binaries are wide-separation lens candidates that merit additional higher-resolution observations. One interesting pair may be an M star binary, or an M star-binary quasar superposition. Our candidates are initially selected by UV-excess ($u-g < 1$), but are otherwise selected irrespective of the relative colors of the quasar pair, and we thus use them to suggest optimal color similarity and photometric redshift approaches for targeting binary quasars, or projected quasar pairs. From a sample that is complete on proper scales of $23.7 < R_{prop} < 29.7\kpch$, we determine the projected quasar correlation function to be $W_p=24.0 \pm^{16.9}_{10.8}$, which is $2σ$ lower than recent estimates. We argue that our low $W_p$ estimates may indicate redshift evolution in the quasar correlation function from $z\sim1.9$ to $z\sim1.4$ on scales of $R_{prop} \sim25\kpch$. The size of this evolution broadly tracks quasar clustering on larger scales, consistent with merger-driven models of quasar origin. Although our sample alone is insufficient to detect evolution in quasar clustering on small scales, an $i$-selected DR6 KDE quasar catalog, which will contain several hundred $z \leqsim 5$ binary quasars, could easily constrain any clustering evolution at $R_{prop} \sim25\kpch$.
description: Submitted to ApJ, 15 emulateapj pages, 7 are text, new observations based on KPNO data
The ionized heart of a molecular disk. ALMA observations of the hyper-compact HII region G24.78+0.08 A1
Creators: name: Moscadelli, Luca
name: Cesaroni, Riccardo
name: Beltrán, Maria T.
name: Rivilla, Victor M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The study of hyper-compact (HC) or ultra-compact (UC) HII regions is fundamental to understanding the process of massive (> 8 M_sun) star formation. We employed Atacama Large Millimeter/submillimeter Array (ALMA) 1.4 mm Cycle 6 observations to investigate at high angular resolution (~0.050", corresponding to 330 au) the HC HII region inside molecular core A1 of the high-mass star-forming cluster G24.78+0.08. We used the H30alpha emission and different molecular lines of CH3CN and 13CH3CN to study the kinematics of the ionized and molecular gas, respectively. At the center of the HC HII region, at radii ~500 au), and an inner ionized disk (
description: 10 pages, 6 figures, accepted for publication in Astronomy & Astrophysics, Main Journal
New limit on high Galactic latitude PeV gamma-ray flux from Tibet AS-gamma data
Creators: name: Neronov, A.
name: Semikoz, D.
name: Vovk, Ie.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Tibet AS-gamma collaboration has recently reported detection of gamma-rays with energies up to Peta-electronvolt from parts of the Galactic plane. We notice that the analysis of gamma-ray flux by the Tibet AS-gamma experiment also implies an upper bound on the diffuse gamma-ray flux from high Galactic latitudes(|b|>20 degrees) in the energy range between 100 TeV and 1 PeV. This bound is up to an order-of-magnitude stronger than previously derived bounds from GRAPES3, KASCADE and CASA-MIA experiments. We discuss the new TibetAS-gamma limit on high Galactic latitude gamma-ray flux in the context of possible mechanisms of multi-messenger (gamma-ray and neutrino) emission from nearby cosmic ray sources, dark matter decays and large scale cosmic ray halo of the Milky Way.
description: 4 pages, 3 figures, accepted to A&A
A habitat-use and dietary analysis of a monogastric versus a ruminant herbivore, on forested range
Creators: name: Preston, Susan Karen
Publisher: name: University of British Columbia
Year: 2010

description: Interactions between feral horses and range cattle were studied on forested range of the Chilcotin Plateau in Central British Columbia from May, 1979 to August, 1980. Research objectives included collecting information on habitat-use, distribution and diet selection for horses and cattle, and habitat-use and distribution data only, for moose. Based on approximately equal, average defecation rates, the relative abundance of each species in the 200 km² study area, was estimated to be 89.7 percent cattle, 7.4 percent horses and 2.9 percent moose. The equine study population was organized into five harem groups, each composed of a single stallion with adult mares and immature animals of both sexes, ranging in group size from 5 to 14. Surplus adult males formed four bachelor groups of between one and four animals. A detailed analysis of all habitat types was not practicable nor considered essential in this study. The breakdown of the study area into seven general habitat types was based on macrovegetation associations which seemed to reflect broad habitat-use patterns and included open forest, semi-open forest, closed forest, meadow, shrub carr, interface zone and 'other' (e.g. roads). A botanical profile of the area, and concomitant plant collection, was done over the two summers of field work. Positive identification was achieved for 148 plant species, but no attempt was made to determine availability of the various species quantitatively. Fecal epidermal analysis was carried out on fecal samples collected for horses and cattle from June through September and for horses in winter. Results indicated at least 54 different plant species were used by the two herbivores. Eleven plant species were found to consitute 80% of the cattle diets and 86% of the horse diets, indicating at least 80% of the two herbivore diets were derived from only 7.4% of the available plant species. Horses utilized fewer plant species in the winter, and while the use of grasses was reduced, sedge and shrub-use increased. A system of random transects of between 18 to 25 km in length were used on a regular, consecutive basis to collect distribution and habitat-use data for horses, cattle and moose. Depending on the individual transects, a greater or lesser degree of spatial overlap was indicated for the three herbivores and the concentration of use in any area varied widely between species. The designated habitat types were measured along each transect and were assumed to reflect habitat availability for the entire study area. None of the three herbivores used the habitats in proportion to habitat availability. Both horses and cattle used meadow habitat disproportionately more (though not necessarily in the same locations), and cattle also indicated a preference for interface zone, while moose used open forest, closed forest and shrub carr disproportionately more.
Estimation of the Birefringence Change in Crystals Induced by Gravitation Field
Creators: name: Vlokh, R.
name: Kostyrko, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Optics (physics.optics)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The effect of gravitation field of spherically symmetric mass on the birefringent properties of crystals has been analysed. It has been shown that the gravitation field with spherical symmetry can lead to a change of birefringence in anisotropic media.
description: 3 pages
Suppression of the optical crosstalk in a multi-channel silicon photomultiplier array
Creators: name: Masuda, Takahiko
name: Ang, Daniel G.
name: Hutzler, Nicholas R.
name: Meisenhelder, Cole
name: Sasao, Noboru
name: Uetake, Satoshi
name: Wu, Xing
name: DeMille, David
name: Gabrielse, Gerald
name: Doyle, John M.
name: Yoshimura, Koji
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We propose and study a method of optical crosstalk suppression for silicon photomultipliers (SiPMs) using optical filters. We demonstrate that attaching absorptive visible bandpass filters to the SiPM can substantially reduce the optical crosstalk. Measurements suggest that the absorption of near infrared light is important to achieve this suppression. The proposed technique can be easily applied to suppress the optical crosstalk in SiPMs in cases where filtering near infrared light is compatible with the application.
Optically-Controlled Nano-Transducers Based on Cleaved Superlattices for Monitoring Gigahertz Surface Acoustic Vibrations
Creators: name: Li, Changxiu
name: Chigarev, Nikolay
name: Thréard, Théo
name: Zhang, Kedong
name: Delorme, Nicolas
name: Tournat, Vincent
name: Raetz, Samuel
name: Lu, Hong
name: Gusev, Vitalyi E.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Surface acoustic waves (SAWs) convey energy at subwavelength depths along surfaces. Using interdigital transducers (IDTs) and opto-acousto-optic transducers (OAOTs), researchers have harnessed coherent SAWs with nanosecond periods and micrometer localization depth for various applications. However, the utilization of cutting-edge OAOTs produced through surface nanopatterning techniques has set the upper limit for coherent SAW frequencies below 100 GHz, constrained by factors such as the quality and pitch of the surface nanopattern, not to mention the electronic bandwidth limitations of the IDTs. In this context, unconventional optically-controlled nano-transducers based on cleaved superlattices (SLs) are here presented as an alternative solution. To demonstrate their viability, we conducted proof-of-concept experiments using ultrafast lasers in a pump-probe configuration on SLs made of alternating AlxGa1-xAs and AlyGa1-yAs layers with approximately 70 nm periodicity and cleaved along their growth direction to produce a periodic nanostructured surface. The acoustic vibrations, generated and detected by laser beams incident on the cleaved surface, span a range from 40 GHz to 70 GHz, corresponding to the generalized surface Rayleigh mode and bulk modes within the dispersion relation. This exploration shows that, in addition to SAWs, cleaved SLs offer the potential to observe surface-skimming longitudinal and transverse acoustic waves at GHz frequencies. This proof-of-concept demonstration below 100 GHz in nanoacoustics using such an unconventional platform offers opportunities for realizing sub-THz to THz coherent surface acoustic vibrations in the future, as SLs can be epitaxially grown with atomic-scale layer width and quality.
description: 38 pages, 8 figures, published at ACS Nano
Michael Kißener u.a. (Hrsg.), Zwischenräume. Grenznahe Beziehungen in Europa seit den 1970er Jahren
Creators: name: Nithammer, Jasmin
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2013

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 62 Nr. 4 (2013)
Free energy surface of two-step nucleation
Creators: name: Eaton, Dean
name: Saika-Voivod, Ivan
name: Bowles, Richard K.
name: Poole, Peter H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We test the theoretical free energy surface (FES) for two-step nucleation (TSN) proposed by Iwamatsu [J. Chem. Phys. 134, 164508 (2011)] by comparing the predictions of the theory to numerical results for the FES recently reported from Monte Carlo simulations of TSN in a simple lattice system [James, et al., J. Chem. Phys. 150, 074501 (2019)]. No adjustable parameters are used to make this comparison. That is, all the parameters of the theory are evaluated directly for the model system, yielding a predicted FES which we then compare to the FES obtained from simulations. We find that the theoretical FES successfully predicts the numerically-evaluated FES over a range of thermodynamic conditions that spans distinct regimes of behavior associated with TSN. All the qualitative features of the FES are captured by the theory and the quantitative comparison is also very good. Our results demonstrate that Iwamatsu's extension of classical nucleation theory provides an excellent framework for understanding the thermodynamics of TSN.
description: 15 pages, 15 figures
Additional file 3 of Long- and short-term clinical impact of awake extracorporeal membrane oxygenation as bridging therapy for lung transplantation
Creators: name: Kim, Nam Eun
name: Woo, Ala
name: Kim, Song Yee
name: Leem, Ah Young
name: Park, Youngmok
name: Kwak, Se Hyun
name: Yong, Seung Hyun
name: Chung, Kyungsoo
name: Park, Moo Suk
name: Kim, Young Sam
name: Kim, Ha Eun
name: Lee, Jin Gu
name: Paik, Hyo Chae
name: Lee, Su Hwan
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 3. Supplementary material, methods.
Resonant inelastic x-ray scattering in electronically quasi-zero-dimensional CuB2O4
Creators: name: Hancock, J. N.
name: Chabot-Couture, G.
name: Li, Y.
name: Petrakovskii, G.
name: Ishii, K.
name: Jarrige, I.
name: Mizuki, J.
name: Devereaux, T. P.
name: Greven, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We explore the general phenomenology of resonant inelastic scattering (RIXS) using CuB2O4, a network of CuO4 plaquettes electronically isolated by B+3 ions. Spectra show a small number of well-separated features, and we exploit the simple electronic structure to explore RIXS phenomenology by developing a calculation which allows for intermediate-state effects ignored in standard approaches. These effects are found to be non-negligible and good correspondence between our model and experiment leads to a simple picture of such phenomenology as the genesis of d-d excitations at the K edge and intermediate-state interference effects.
description: Phys. Rev. B 80, 092509 (2009)
Additional file 1 of Exploring the associations between transcript levels and fluxes in constraint-based models of metabolism
Creators: name: Sinha, Neeraj
name: van Schothorst, Evert M.
name: Hooiveld, Guido J. E. J.
name: Keijer, Jaap
name: Martins dos Santos, Vitor A. P.
name: Suarez-Diez, Maria
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Science Policy
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer

description: Additional file 1: Figure S1. Exploration of proportionality constant on predicted flux in E. coli for the Ishii dataset: (A) Pyruvate (B) Ethanol (C) Acetate (D) Succinate (E) Lactate
Testing the Einstein Equivalence Principle with two Earth-orbiting clocks
Creators: name: Litvinov, D. A.
name: Pilipenko, S. V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider the problem of testing the Einstein Equivalence Principle (EEP) by measuring the gravitational redshift with two Earth-orbiting stable atomic clocks. For a reasonably restricted class of orbits we find an optimal experiment configuration that provides for the maximum accuracy of measuring the relevant EEP violation parameter. The perigee height of such orbits is $\sim$~1,000~km and the period is 3--5~hr, depending on the clock type. For the two of the current best space-qualified clocks, the VCH-1010 hydrogen maser and the PHARAO cesium fountain clock, the achievable experiment accuracy is, respectively, $1\times10^{-7}$ and $5\times10^{-8}$ after 3 years of data accumulation. This is more than 2 orders of magnitude better than achieved in Gravity Probe A and GREAT missions as well as expected for the RadioAstron gravitational redshift experiment. Using an anticipated future space-qualified clock with a performance of the current laboratory optical clocks, an accuracy of $3\times10^{-10}$ is reachable.
description: 13 pages, 5 figures