cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Bending Moduli of Charged Membranes Immersed in Polyelectrolyte Solutions
Creators: name: Shafir, Adi
name: Andelman, David
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We study the contribution of polyelectrolytes in solution to the bending moduli of charged membranes. Using the Helfrich free energy, and within the mean-field theory, we calculate the dependence of the bending moduli on the electrostatics and short-range interactions between the membrane and the polyelectrolyte chains. The most significant effect is seen for strong short-range interactions and low amounts of added salt where a substantial increase in the bending moduli of order $1 k_BT$ is obtained. From short-range repulsive membranes, the polyelectrolyte contribution to the bending moduli is small, of order $0.1 k_BT$ up to at most $1 k_BT$. For weak short-range attraction, the increase in membrane rigidity is smaller and of less significance. It may even become negative for large enough amounts of added salt. Our numerical results are obtained by solving the adsorption problem in spherical and cylindrical geometries. In some cases the bending moduli are shown to follow simple scaling laws.
description: 16 pages, 6 figures
Additional file 1 of SCN11A gene deletion causes sensorineural hearing loss by impairing the ribbon synapses and auditory nerves
Creators: name: Zu, Mian
name: Guo, Wei-Wei
name: Cong, Tao
name: Ji, Fei
name: Zhang, Shi-Li
name: Zhang, Yue
name: Song, Xin
name: Sun, Wei
name: He, David Z. Z.
name: Shi, Wei-Guo
name: Yang, Shi-Ming
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology

description: Additional file 1: Figure S1. The expression of Nav1.9 is located in spiral bundles beneath the IHCs bases. A, Horizontal section showing Nav1.9 (red) in the afferent endings and in the afferent radial fibers leading through the FN (arrow). B, Cross section showing Nav1.9 (red) labeling afferent radial fibers leading through the FN (arrow). T: the tunnel of Corti; PP: the phalangeal processes. Figure S2. Nav1.9 labeling spiral bundles run among scattered CtBP2 puncta in presynaptic membrane. A, Staining with DAPI in cochlea basilar membrane. B, Immunostaining with Nav1.9 (red), containing radial bundles (arrow) and suspected afferent (dashed arrow) from unmyelinated Type II ganglion cells cross the tunnel of Corti (T) to innervate OHCs. C, Immunostaining with CtBP2 (green) puncta beneath IHCs (arrowhead). D, Bright field of cochlea basilar membrane, showing one row of OHCs, the phalangeal processes (PP), and one row of IHCs. E, Image with overlapping fluorescent channels. Scale = 25 μm. Figure S3. Anti-MBP antibody labeling myelin sheath covering type I afferent and neuron soma (Green). BF: bright field. Immunostaining with MBP (green) in type I afferent fibre (arrow), and type I SGN soma (arrowhead) are shown, respectively. Figure S4. The genotype was identified by PCR. Line M: DL2000 DNA Marker; Line 1: the PCR product of tissue from WT mouse with Prime 2 (shortened to “WT with Primer 2”); Line 2: WT with Primer 1; Line 3: heterozygous with Primer 2; Line 4: heterozygous with Primer 1; Line 5: homozygous (female) with Primer 2; Line 6: homozygous (female) with Primer 1; Line 7: homozygous (male) with Primer 2; Line 8: homozygous (male) with Primer 1. Figure S5. The expression of Nav1.9 in the cochleas of Nav1.9−/− mice (n = 3) or WT mice (n = 4) was measured by western blot.
The Parallel Theories of the Third World.pdf
Creators: name: Wale Idris Ajibade
Publisher: name: figshare
Year: 2021
Subjects: subject: 160502 Arts and Cultural Policy
subject: FOS: Political science
subject: 160505 Economic Development Policy
subject: 160401 Economic Geography
subject: FOS: Social and economic geography
subject: 160605 Environmental Politics
subject: 160507 Environment Policy
subject: 160802 Environmental Sociology
subject: FOS: Sociology
subject: 160607 International Relations
subject: 160803 Race and Ethnic Relations
subject: 160509 Public Administration
subject: 160510 Public Policy
subject: 160609 Political Theory and Political Philosophy
subject: 160512 Social Policy
subject: 160805 Social Change
subject: 160806 Social Theory
subject: 169903 Studies of Asian Society

description: The Parallel Theories of the Third World compares the European hegemony and the China relationship with the developing world. The topic touches on Africa- china relationship. However, it is ultimately about the American response to China's emergence globally and especially its growing influence in the Caribbean and the effect of the whole experience on the popular cultures.
Hexagonal, square and stripe patterns of the ion channel density in biomembranes
Creators: name: Hilt, Markus
name: Zimmermann, Walter
Publisher: name: arXiv
Year: 2006
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Transmembrane ion flow through channel proteins undergoing density fluctuations may cause lateral gradients of the electrical potential across the membrane giving rise to electrophoresis of charged channels. A model for the dynamics of the channel density and the voltage drop across the membrane (cable equation) coupled to a binding-release reaction with the cell skeleton (P. Fromherz and W. Zimmerman, Phys. Rev. E 51, R1659 (1995)) is analyzed in one and two spatial dimensions. Due to the binding release reaction spatially periodic modulations of the channel density with a finite wave number are favored at the onset of pattern formation, whereby the wave number decreases with the kinetic rate of the binding-release reaction. In a two-dimensional extended membrane hexagonal modulations of the ion channel density are preferred in a large range of parameters. The stability diagrams of the periodic patterns near threshold are calculated and in addition the equations of motion in the limit of a slow binding-release kinetics are derived.
description: Currently submitted to Physical Review E
Searching for local counterparts of high-redshift post-starburst galaxies in integral field unit spectroscopic surveys of nearby galaxies
Creators: name: Wu, Po-Feng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Searching in the MaNGA IFU survey, I identify 9 galaxies that have strong Balmer absorption lines and weak nebular emission lines measured from the spectra integrated over the entire IFUs. The spectral features measured from the bulk of the stellar light make these galaxies local analogs of high-redshift spectroscopically-selected post-starburst galaxies, thus, proxies to understand the mechanisms producing post-starburst galaxies at high-redshifts. I present the distributions of absorption-line indices and emission-line strengths, as well as stellar kinematics of these local post-starburst galaxies. Almost all local post-starburst galaxies have central compact emission-line regions at the central $<1$ kpc, mostly powered by weak star-formation activities. The age-sensitive absorption line indices EW(H$δ$) and Dn4000 indicate that the stellar populations at the outskirts are older. Toy stellar population synthesis models suggest that the entire galaxies are experiencing a rapid decline of star formation with residual star-formation activities at the centers. These features demand that most post-starburst galaxies are the aftermath of highly dissipative processes that drive gas into centers, invoke centrally-concentrated star formation, then quench the galaxies. Meanwhiles, when measurable, post-starburst galaxies have the directions of maximum stellar velocity gradients align with photometric major axes, which suggest against major mergers being the principal driving mechanism, while gas-rich minor mergers are plausible. While directly obtaining the same quality of spatially-resolved spectra of high-redshift post-starburst galaxies is very difficult, finding proper local counterparts provides an alternative to understand quenching processes in the distant Universe.
description: 20 pages, 12 figures, accepted by ApJ
The scaling limit of Fomin's identity for two paths in the plane
Creators: name: Kozdron, Michael J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60-02 (Primary), 60F99, 60G50, 60J45, 60J65 (Secondary)

description: We review some recently completed research that establishes the scaling limit of Fomin's identity for loop-erased random walk on Z^2 in terms of the chordal Schramm-Loewner evolution (SLE) with parameter 2. In the case of two paths, we provide a simplified proof of the identity for loop-erased random walk and simple random walk, and prove directly that the corresponding identity holds for chordal SLE(2) and Brownian motion. We also include a brief introduction to SLE and discussion of the relationship between SLE(2) and loop-erased random walk.
description: v2: 14 pages, 2 figures, review paper to appear in C.R. Math. Rep. Acad. Sci. Canada; added brief introduction to SLE, updated acknowledgements and references
Factors Influencing the Development of Quality of Life of Students of Nakhon Ratchasima Rajabhat University
Creators: name: Pattanachai Fuengfu
Publisher: name: DR.KEN Institute of Academic Development and Promotion.
Year: 2021
Subjects: Factors
Development
Quality of Life

description: International Journal of Sociologies and Anthropologies Science Reviews (IJSASR), 1, 4, 24_34
Approximate universality in the tunneling potential for curved field emitters -- a line charge model approach
Creators: name: Ramachandran, Rajasree
name: Biswas, Debabrata
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Accelerator Physics (physics.acc-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Field emission tips with apex radius of curvature below 100nm are not adequately described by the standard theoretical models based on the Fowler-Nordheim and Murphy-Good formalisms. This is due to the breakdown of the `constant electric field' assumption within the tunneling region leading to substantial errors in current predictions. A uniformly applicable curvature-corrected field emission theory requires that the tunneling potential be approximately universal irrespective of the emitter shape. Using the line charge model, it is established analytically that smooth generic emitter tips approximately follow this universal trend when the anode is far away. This is verified using COMSOL for various emitter shapes including the locally non-parabolic `hemisphere on a cylindrical post'. It is also found numerically that the curvature-corrected tunneling potential provides an adequate approximation when the anode is in close proximity as well as in the presence of other emitters.
description: 10 pages, 7 figures
174P/Echeclus: a strange case of outburst
Creators: name: Rousselot, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Context. More than ten Centaurs are now known to have cometary activity at large heliocentric distance (i.e. $\simeq$ 5-13 AU). Among these objects, 174P/Echeclus which showed cometary activity at 13 AU from the Sun, is a unique case, because of: (i) the amplitude of its outburst, (ii) the source of cometary activity that appears distinct from Echeclus itself. Aims. This paper aims at investigating the physical conditions that have led to this unusual outburst. The purpose is also to quantify this phenomenon and to provide observational constraints for its modeling. Methods. We use observations from different telescopes, performed before, during, and after the outburst. We performed the main observations on March 23 and 30, 2006, with the 8.2-m ESO Very Large Telescope and FORS 1 instrument. They consist of visible images and spectra. Results. Our main results are: (i) a cometary source distinct from Echeclus itself that presents a brightness distribution compatible with a diffuse source; (ii) a total dust production rate Q_dust equal to about 86 kg.s^-1 and a parameter Afrho equal to 10,000cm; (iii) no emission lines (CN and C_2) can be detected in the visible range; (iv) the upper limits for the CN and C_2 production rates are about 3.8x10^25 and 10^26 molecules.s^-1 respectively; (v) we detected no Echeclus' satellite before the outburst up to M_R equal to about 26; (vi) the upper limit for the object generating the coma is about 8 km in diameter; (vii) and we detected no cometary activity one year later, in March 2007.
Kinetic features for the identification of Kelvin-Helmholtz vortices in \textit{in situ} observations
Creators: name: Settino, A.
name: Perrone, D.
name: Khotyaintsev, Yu. V.
name: Graham, D. B.
name: Valentini, F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The boundaries identification of Kelvin-Helmholtz vortices in observational data has been addressed by searching for single-spacecraft small-scale signatures. A recent hybrid Vlasov-Maxwell simulation of Kelvin-Helmholtz instability has pointed out clear kinetic features which uniquely characterize the vortex during both the nonlinear and turbulent stage of the instability. We compare the simulation results with \textit{in situ} observations of Kelvin-Helmholtz vortices by the Magnetospheric MultiScale satellites. We find good agreement between simulation and observations. In particular, the edges of the vortex are associated with strong current sheets, while the center is characterized by a low value for the magnitude of the total current density and strong deviation of the ion distribution function from a Maxwellian distribution. We also find a significant temperature anisotropy parallel to the magnetic field inside the vortex region and strong agyrotropies near the edges. We suggest that these kinetic features can be useful for the identification of Kelvin-Helmholtz vortices in \textit{in situ} data.
description: 12 pages, 5 figures
Conceptual Framework Innovation to Strengthen Social Bonding through the Active Aging Life Course Strategy to Create a Quality Society of all Ages to Support the Aging Society in Buriram Province
Creators: name: Pattarapon Tossamas
Publisher: name: DR.KEN Institute of Academic Development and Promotion.
Year: 2021
Subjects: Conceptual framework
Innovation
Active aging
Aging society

description: International Journal of Sociologies and Anthropologies Science Reviews (IJSASR), 1, 4, 35_45
Stability Limits in Extra-solar Planetary Systems
Creators: name: Barnes, Rory
name: Greenberg, Richard
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Two types of stability boundaries exist for any planetary system consisting of one star and two planets. Lagrange stability requires that the planets remain bound to the star, conserves the ordering of the distance from the star, and limits the variations of orbital elements like semi-major axis and eccentricity. Hill stability only requires that the ordering of the planets remain constant; the outer planet may escape to infinity. A simple formula defines a region in orbital element space that is guaranteed to be Hill stable, although Hill stable orbits may lie outside the region as well. No analytic criteria describe Lagrange stability. We compare the results of 1000 numerical simulations of planetary systems similar to 47 UMa and HD 12661 with these two types of boundaries. All cases are consistent with the analytic criterion for Hill stability. Moreover, the numerically determined Lagrange boundary lies close to the analytic boundary for Hill stability. This result suggests an analytic formulation that may describe the criterion for Lagrange stability.
description: 13 pages, 4 figures, accepted ApJ Letters
Getting out the commodity trap: Enabling diversity through an alternative food network
Creators: name: Bliss, K
name: Villa, A
name: Meldrum, J
name: Zhang, C
name: Vieweger, A
name: Bickler, C
Publisher: name: Zenodo
Year: 2021
Subjects: Crop Diversifcation

description: Many UK arable farmers are stuck in a ‘commodity trap’. Despite growing evidence of the role of temporal and spatial crop diversity in enhancing the resilience and performance of agroecosystems, they are limited by markets that demand large volumes of consistent products. The infrastructure built up around these commodity markets does not allow for small batches of more diverse crops – access to seed, production, harvest, storage, transport and processing present additional challenges. As such, although there is growing interest in crop diversification at a genetic, crop and rotation level, arable cropping in the UK is focused on a relatively small number of crops grown for the commodity market. In parallel, there is a growing consumer interest in more resource efficient and plant-based diets, creating more demand for pulses and other novel grains. However much of this is currently met by imports and not supporting crop diversification and associated agroecological benefits in the UK. As such there is huge potential for initiatives which seek to support to connect these farmers and consumers to build diverse, agroecological food systems.
Quantum periods and TBA equations for $\mathcal{N}=2\ SU(2)\ N_f=2$ SQCD with flavor symmetry
Creators: name: Imaizumi, Keita
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We apply the exact WKB analysis to the quantum Seiberg-Witten curve for 4-dimensional $\mathcal{N} = 2\ SU(2)\ N_f=2$ SQCD with the flavor symmetry. The discontinuity and the asymptotic behavior of the quantum periods define a Riemann-Hilbert problem. We derive the thermodynamic Bethe ansatz (TBA) equations as a solution to this problem. We also compute the effective central charge of the underlying CFT, which is shown to be proportional to the one-loop beta function of the SQCD.
description: 17 pages, 2 figures, (v2) references are added, (v3) typos corrected, references are added, minor modification, published version
The FairCeptron: A Framework for Measuring Human Perceptions of Algorithmic Fairness
Creators: name: Ahnert, Georg
name: Smirnov, Ivan
name: Lemmerich, Florian
name: Wagner, Claudia
name: Strohmaier, Markus
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computers and Society (cs.CY)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Measures of algorithmic fairness often do not account for human perceptions of fairness that can substantially vary between different sociodemographics and stakeholders. The FairCeptron framework is an approach for studying perceptions of fairness in algorithmic decision making such as in ranking or classification. It supports (i) studying human perceptions of fairness and (ii) comparing these human perceptions with measures of algorithmic fairness. The framework includes fairness scenario generation, fairness perception elicitation and fairness perception analysis. We demonstrate the FairCeptron framework by applying it to a hypothetical university admission context where we collect human perceptions of fairness in the presence of minorities. An implementation of the FairCeptron framework is openly available, and it can easily be adapted to study perceptions of algorithmic fairness in other application contexts. We hope our work paves the way towards elevating the role of studies of human fairness perceptions in the process of designing algorithmic decision making systems.
description: For source code of the implementation, see https://github.com/cssh-rwth/fairceptron
Machine-learning based spectral similarity measures to better identify different yet related compounds from large metabolomic datasets.
Creators: name: Huber, Florian
name: Ridder, Lars
name: Roger, Simon
name: van der Hooft, Justin
Publisher: name: Zenodo
Year: 2019
Subjects: metabolomics, spectral similarity, clustering, machine-learning

description: Extensive high-throughput mass spectrometry has become an important tool in many areas of life sciences and medicine. Analyzing and interpreting the resulting complex mass spectral data remains a challenging task, in particular for mixtures containing large numbers of unidentified compounds. One key challenge in extracting useful information from such data is to determine if spectra belong to identical or similar molecules. This is typically done by deriving spectral similarity scores, currently often based on comparing (intensities for matching) peak positions, for instance by calculating a modified cosine score (as used in GNPS molecular networking) Those measures work well for spectra obtained for very similar compounds, but often perform poorly when used to find similarities between spectra of notably different yet related compounds This is assessed by using Tanimoto coefficients between molecular fingerprints from a large set (>10,000) of MS/MS reference spectra as benchmark We here propose a number of alternative approaches for measuring spectral similarity which are based on established machine-learning algorithms including techniques adapted from natural language processing, but also PCA and deep autoencoders. We will present several measures that outperform the modified cosine score in selecting spectra from structurally closely related molecules in datasets containing potentially unknown compounds. We further find that some of the presented measures show complementary characteristics which can either be combined or be used to address different types of similarity. Taken together, we conclude that these novel spectral similarity measures are a promising alternative for established measures
X-rays from jet-driving protostars and T Tauri stars
Creators: name: Guedel, M.
name: Telleschi, A.
name: Audard, M.
name: Skinner, S. L.
name: Briggs, K. R.
name: Palla, F.
name: Dougados, Catherine
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (abridged:) We study X-rays from jet-driving protostars and T Tau stars. We seek soft spectral components that may be due to shock emission, and shock-induced emission displaced from the stellar position. Two stellar samples are used, the first consisting of lightly absorbed T Tau stars with strong jets, the other containing protostars with disks seen nearly edge-on. The former sample was observed in the XMM-Newton Extended Survey of the Taurus Molecular Cloud (XEST), while Chandra archival data provided observations of the latter. We confirm the previously identified peculiar spectrum of DG Tau A and find similar phenomenology in GV Tau and DP Tau, suggesting a new class of X-ray spectra. These consist of a lightly absorbed, very soft component and a strongly absorbed, very hard component. The latter is flaring while little variability is detected in the former. The absorption of the harder component is about an order of magnitude higher than expected from the optical extinction assuming a standard gas-to-dust mass ratio. The flaring hard component represents active coronal emission. Its strong absorption is attributed to mass inflow from the accretion disk. The optical extinction is small because the dust has sublimated at larger distances. The weakly absorbed soft component cannot originate from the same location. Because the stars drive strong jets, we propose that the X-rays are generated in shocks in the jets. We find that for the three peculiar X-ray sources, the luminosity of the soft component roughly scales with the equivalent width of the [OI] 6300A line formed in the jets, and with the mass outflow rate. In the more strongly obscured protostars, the soft component is entirely absorbed, and only the hard, coronal component penetrates the envelope or the near-edge-on disk.
description: 17 pages, 27 figures, A&A style. Accepted by A&A, to appear in a special section/issue dedicated to the XMM-Newton Extended Survey of the Taurus Molecular Cloud (XEST). Version with higher resolution figures available at http://www.issibern.ch/teams/Taurus/papers.html or http://www.astro.phys.ethz.ch/papers/guedel/guedel_p_nf.html
Role of the Elderly in Local Development in Ban Kasem Area, Kasem Sub-district, Trakan Phuet Phon District, Ubon Ratchathani Province
Creators: name: Jiraporn Sonsong,
Publisher: name: DR.KEN Institute of Academic Development and Promotion.
Year: 2021
Subjects: Role of the Elderly
Local Development

description: International Journal of Sociologies and Anthropologies Science Reviews (IJSASR), 1, 5, 1_16
Floating Wigner Crystal and Periodic Jellium Configurations
Creators: name: Lauritsen, Asbjørn Bækgaard
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 82B05

description: Extending on ideas of Lewin, Lieb and Seiringer (Phys Rev B, 100, 035127, (2019)) we present a modified "floating crystal" trial state for Jellium (also known as the classical homogeneous electron gas) with density equal to a characteristic function. This allows us to show that three definitions of the Jellium energy coincide in dimensions $d\geq 2$, thus extending the result of Cotar and Petrache (arXiv: 1707.07664) and Lewin, Lieb and Seiringer (Phys Rev B, 100, 035127, (2019)) that the three definitions coincide in dimension $d \geq 3$. We show that the Jellium energy is also equivalent to a "renormalized energy" studied in a series of papers by Serfaty and others and thus, by work of Bétermin and Sandier (Constr Approx, 47:39-74, (2018)), we relate the Jellium energy to the order $n$ term in the logarithmic energy of $n$ points on the unit 2-sphere. We improve upon known lower bounds for this renormalized energy. Additionally, we derive formulas for the Jellium energy of periodic configurations.
description: 22 pages, v2: Added references
Learning Achievement according to the Qualifications Framework for Higher Education Using Teaching Techniques Integrated Knowledge with Academic Service and Research, Maha Sarakham Rajabhat University
Creators: name: Kunteera Arsasri
Publisher: name: DR.KEN Institute of Academic Development and Promotion.
Year: 2021
Subjects: Academic Achievement
Higher Education Qualifications Framework
Cognitive

description: International Journal of Sociologies and Anthropologies Science Reviews (IJSASR), 1, 5, 7_16
The Pfaffian quantum Hall state made simple--multiple vacua and domain walls on a thin torus
Creators: name: Bergholtz, E. J.
name: Kailasvuori, J.
name: Wikberg, E.
name: Hansson, T. H.
name: Karlhede, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We analyze the Moore-Read Pfaffian state on a thin torus. The known six-fold degeneracy is realized by two inequivalent crystalline states with a four- and two-fold degeneracy respectively. The fundamental quasihole and quasiparticle excitations are domain walls between these vacua, and simple counting arguments give a Hilbert space of dimension $2^{n-1}$ for $2n-k$ holes and $k$ particles at fixed positions and assign each a charge $\pm e/4$. This generalizes the known properties of the hole excitations in the Pfaffian state as deduced using conformal field theory techniques. Numerical calculations using a model hamiltonian and a small number of particles supports the presence of a stable phase with degenerate vacua and quarter charged domain walls also away from the thin torus limit. A spin chain hamiltonian encodes the degenerate vacua and the various domain walls.
description: 4 pages, 1 figure. Published, minor changes
Satisfaction towards Parking Management within Nakhon Ratchasima Rajabhat University
Creators: name: Natsuda Pankhuntod
Publisher: name: DR.KEN Institute of Academic Development and Promotion.
Year: 2021
Subjects: Satisfaction
Parking Management
Students

description: International Journal of Sociologies and Anthropologies Science Reviews (IJSASR), 1, 5, 17_28
Detection of Surface Brightness Fluctuations in Elliptical Galaxies imaged with the Advanced Camera for Surveys. B- and I-band measurements
Creators: name: Cantiello, Michele
name: Raimondo, Gabriella
name: Blakeslee, John P.
name: Brocato, Enzo
name: Capaccioli, Massimo
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Taking advantage of the exceptional capabilities of ACS on board of HST, we derive Surface Brightness Fluctuation (SBF) measurements in the B and I bands from images of six elliptical galaxies with $1500 \leq cz \leq 3500$. Given the low S/N ratio of the SBF signal in the blue band images, the reliability of the measurements is verified both with numerical simulations and experimental data tests. This paper presents the first published B- and I-band SBF measurements for distant ($\geq$ 20 Mpc) galaxies, essential for the comparisons of the models to observations of normal ellipticals. By comparing I-band data with our new Simple Stellar Population (SSP) models we find an excellent agreement and we confirm that I-band SBF magnitudes are mainly sensitive to the metallicity of the dominant stellar component in the galaxy, and are not strongly affected by the contribution of possible secondary stellar components. As a consequence I-band fluctuations magnitudes are ideal for distance studies. On the other hand, we show that standard SSP models do not reproduce the B-band SBF magnitudes of red ($(B-I)_0 \gsim 2.1$) galaxies in our sample. We explore the capability of two non--canonical models in properly reproducing the high sensitivity of B SBF to the presence of even small fractions of bright, hot stars (metal poor stars, hot evolved stars, etc.). The disagreement is solved both by taking into account hot (Post--AGB) stars in SSP models and/or by adopting Composite Stellar Population models. Finally, we suggest a limit value of the S/N for the B-band SBF signal required to carry out a detailed study of stellar population properties based on this technique.
description: ApJ accepted
Need of The Elderly Welfare in Makha Subdistrict, Non-Sung District, Nakhon Ratchasima Province
Creators: name: Nuchanat Suwannawong
Publisher: name: DR.KEN Institute of Academic Development and Promotion.
Year: 2021
Subjects: Need
Welfare
Elderly

description: International Journal of Sociologies and Anthropologies Science Reviews (IJSASR), 1, 5, 29_38
Public opinion towards campaigning behavior of local administrators in Thung Nang Ok Subdistrict, Muang District, Yasothon Province
Creators: name: Panchit Sadao
Publisher: name: DR.KEN Institute of Academic Development and Promotion.
Year: 2021
Subjects: Public Opinion
Campaigning Behavior

description: International Journal of Sociologies and Anthropologies Science Reviews (IJSASR), 1, 5, 38_46
Nonequilibrium quantum criticality in open electronic systems
Creators: name: Mitra, Aditi
name: Takei, So
name: Kim, Yong Baek
name: Millis, A. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A theory is presented of quantum criticality in open (coupled to reservoirs) itinerant electron magnets, with nonequilibrium drive provided by current flow across the system. Both departures from equilibrium at conventional (equilibrium) quantum critical points and the physics of phase transitions induced by the nonequilibrium drive are treated. Nonequilibrium-induced phase transitions are found to have the same leading critical behavior as conventional thermal phase transitions.
description: 5 pages, 1 figure
Finitely coordinated models for low-temperature phases of amorphous systems
Creators: name: Kuehn, Reimer
name: van Mourik, Jort
name: Weigt, Martin
name: Zippelius, Annette
Publisher: name: arXiv
Year: 2007
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We introduce models of heterogeneous systems with finite connectivity defined on random graphs to capture finite-coordination effects on the low-temperature behavior of finite dimensional systems. Our models use a description in terms of small deviations of particle coordinates from a set of reference positions, particularly appropriate for the description of low-temperature phenomena. A Born-von-Karman type expansion with random coefficients is used to model effects of frozen heterogeneities. The key quantity appearing in the theoretical description is a full distribution of effective single-site potentials which needs to be determined self-consistently. If microscopic interactions are harmonic, the effective single-site potentials turn out to be harmonic as well, and the distribution of these single-site potentials is equivalent to a distribution of localization lengths used earlier in the description of chemical gels. For structural glasses characterized by frustration and anharmonicities in the microscopic interactions, the distribution of single-site potentials involves anharmonicities of all orders, and both single-well and double well potentials are observed, the latter with a broad spectrum of barrier heights. The appearance of glassy phases at low temperatures is marked by the appearance of asymmetries in the distribution of single-site potentials, as previously observed for fully connected systems. Double-well potentials with a broad spectrum of barrier heights and asymmetries would give rise to the well known universal glassy low temperature anomalies when quantum effects are taken into account.
description: 35 pages, 8 Figures
Late-time evolution of charged massive Dirac fields in the Kerr-Newman background
Creators: name: He, Xi
name: Jing, Jiliang
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate both the intermediate late-time tail and the asymptotic tail behavior of the charged massive Dirac fields in the background of the Kerr-Newman black hole. We find that the intermediate late-time behavior of charged massive Dirac fields is dominated by an inverse power-law decaying tail without any oscillation, which is different from the oscillatory decaying tails of the scalar field. We note that the dumping exponent depends not only on the angular quantum numbers $m$, the separation constant $λ$ and the rotating parameter $a$, but also on the product $seQ$ of the spin weight of the Dirac field and the charges of the black hole and the fields. We also find that the decay rate of the asymptotically late-time tail is $t^{-5/6}$, and the oscillation of the tail has the period of $2π/ μ$ which is modulated by two types of long-term phase shifts.
description: 14 pages
Impact of neutron star oscillations on the accelerating electric field in the polar cap of pulsar: or could we see oscillations of the neutron star after the glitch in pulsar?
Creators: name: Timokhin, Andrey N.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Pulsar "standard model", that considers a pulsar as a rotating magnetized conducting sphere surrounded by plasma, is generalized to the case of oscillating star. We developed an algorithm for calculation of the Goldreich-Julian charge density for this case. We consider distortion of the accelerating zone in the polar cap of pulsar by neutron star oscillations. It is shown that for oscillation modes with high harmonic numbers (l,m) changes in the Goldreich-Julian charge density caused by pulsations of neutron star could lead to significant altering of an accelerating electric field in the polar cap of pulsar. In the moderately optimistic scenario, that assumes excitation of the neutron star oscillations by glitches, it could be possible to detect altering of the pulsar radioemission due to modulation of the accelerating field.
description: 7 pages, 8 figures. Presented at the conference "Isolated Neutron Stars: from the Interior to the Surface", London, April 24-28, 2006; to appear in Astrophysics and Space Science
Supermassive Black Hole Growth and Merger Rates from Cosmological N-body Simulations
Creators: name: Micic, Miroslav
name: Holley-Bockelmann, Kelly
name: Sigurdsson, Steinn
name: Abel, Tom
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Understanding how seed black holes grow into intermediate and supermassive black holes (IMBHs and SMBHs, respectively) has important implications for the duty-cycle of active galactic nuclei (AGN), galaxy evolution, and gravitational wave astronomy. Most studies of the cosmological growth and merger history of black holes have used semianalytic models and have concentrated on SMBH growth in luminous galaxies. Using high resolution cosmological N-body simulations, we track the assembly of black holes over a large range of final masses -- from seed black holes to SMBHs -- over widely varying dynamical histories. We used the dynamics of dark matter halos to track the evolution of seed black holes in three different gas accretion scenarios. We have found that growth of Sagittarius A* - size SMBH reaches its maximum mass M_{SMBH}~10^6Msun at z~6 through early gaseous accretion episodes, after which it stays at near constant mass. At the same redshift, the duty-cycle of the host AGN ends, hence redshift z=6 marks the transition from an AGN to a starburst galaxy which eventually becomes the Milky Way. By tracking black hole growth as a function of time and mass, we estimate that the IMBH merger rate reaches a maximum of R_{max}=55 yr^-1 at z=11. From IMBH merger rates we calculate N_{ULX}=7 per Milky Way type galaxy per redshift in redshift range 2
description: 12 pages, 8 figures, submitted to MNRAS
The Temporal Analysis of Light Pollution in Turkey using VIIRS data
Creators: name: Yerli, S. K.
name: Aksaker, N.
name: Bayazit, M.
name: Kurt, Z.
name: Aktay, A.
name: Erdoğan, M. A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Artificial Light pollution (AL) in Turkey and in Turkish observatories between 2012--2020 have been studied using the archival data of Visible Infrared Imaging Radiometer Suite (VIIRS) instrument. The astroGIS database has been used in processing the data (https://www.astrogis.org) \cite{2020MNRAS.493.1204A}. The total energy released to space from Turkey increased by 80\% in 2019 with respect to 2012. In the span of the dataset, a steady and continuous increase has been observed throughout all cities of the country. On the other hand, Dark Sky Park locations, East and Southeast Anatolian regions and mostly rural areas around the cities kept their AL level constant. Four demographic parameters have been studied and they were found to be correlated very well with AL: Population ($R \simeq 0.90$); GDP ($R \simeq 0.87$); Total Power Consumption ($R \simeq 0.66$) and Outdoor Lightening ($R \simeq 0.67$). Contrary to countries acting to prevent AL increases, Turkey seems to be at the beginning of an era where AL will arithmetically increase throughout the country and enormous amount of energy will continuously escape to space and therefore will be wasted. Therefore, a preventive legislation, especially for invaluable astronomical site locations such as TURAG, TUG, DAG and ÇAAM where each is counted as a truly dark site due to their SQM values, has to be enacted in Turkey, in very near future.
description: 15 pages, 7 figures and 4 tables, Accepted for publication in Astrophysics and Space Science
Geoneutrinos in Borexino
Creators: name: Giammarchi, Marco G.
name: Miramonti, Lino
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: This paper describes the Borexino detector and the high-radiopurity studies and tests that are integral part of the Borexino technology and development. The application of Borexino to the detection and studies of geoneutrinos is discussed.
description: Conference: Neutrino Geophysics Honolulu, Hawaii December 14-16, 2005
Abundance stratification in Type Ia Supernovae - II: The rapidly declining, spectroscopically normal SN 2004eo
Creators: name: Mazzali, P. A.
name: Sauer, D. N.
name: Pastorello, A.
name: Benetti, S.
name: Hillebrandt, W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The variation of properties of Type Ia supernovae, the thermonuclear explosions of Chandrasekhar-mass carbon-oxygen white dwarfs, is caused by different nucleosynthetic outcomes of these explosions, which can be traced from the distribution of abundances in the ejecta. The composition stratification of the spectroscopically normal but rapidly declining SN2004eo is studied performing spectrum synthesis of a time-series of spectra obtained before and after maximum, and of one nebular spectrum obtained about eight months later. Early-time spectra indicate that the outer ejecta are dominated by oxygen and silicon, and contain other intermediate-mass elements (IME), implying that the outer part of the star was subject only to partial burning. In the inner part, nuclear statistical equilibrium (NSE) material dominates, but the production of 56Ni was limited to ~0.43 \pm 0.05 Msun. An innermost zone containing ~0.25 Msun of stable Fe-group material is also present. The relatively small amount of NSE material synthesised by SN2004eo explains both the dimness and the rapidly evolving light curve of this SN.
description: 12 pages, 7 figures. Accepted for publication in MNRAS
On $(β,γ)$-Chebyshev functions and points of the interval
Creators: name: De Marchi, Stefano
name: Elefante, Giacomo
name: Marchetti, Francesco
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: In this paper, we introduce the class of $(β,γ)$-Chebyshev functions and corresponding points, which can be seen as a family of {\it generalized} Chebyshev polynomials and points. For the $(β,γ)$-Chebyshev functions, we prove that they are orthogonal in certain subintervals of $[-1,1]$ with respect to a weighted arc-cosine measure. In particular we investigate the cases where they become polynomials, deriving new results concerning classical Chebyshev polynomials of first kind. Besides, we show that subsets of Chebyshev and Chebyshev-Lobatto points are instances of $(β,γ)$-Chebyshev points. We also study the behavior of the Lebesgue constants of the polynomial interpolant at these points on varying the parameters $β$ and $γ$.
Atomic and Molecular Opacities for Brown Dwarf and Giant Planet Atmospheres
Creators: name: Sharp, Christopher M.
name: Burrows, Adam
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a comprehensive description of the theory and practice of opacity calculations from the infrared to the ultraviolet needed to generate models of the atmospheres of brown dwarfs and extrasolar giant planets. Methods for using existing line lists and spectroscopic databases in disparate formats are presented and plots of the resulting absorptive opacities versus wavelength for the most important molecules and atoms at representative temperature/pressure points are provided. Electronic, ro-vibrational, bound-free, bound-bound, free-free, and collision-induced transitions and monochromatic opacities are derived, discussed, and analyzed. The species addressed include the alkali metals, iron, heavy metal oxides, metal hydrides, $H_2$, $H_2O$, $CH_4$, $CO$, $NH_3$, $H_2S$, $PH_3$, and representative grains. [Abridged]
description: 28 pages of text, plus 22 figures, accepted to the Astrophysical Journal Supplement Series, replaced with more compact emulateapj version
A Scenario for a Singularity-free Generic Cosmological Solution
Creators: name: Montani, Giovanni
name: Chiovoloni, Roberta
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We develop a scenario for the emergence of a non-singular generic cosmological solution based on the a WKB characterization of one of the two anisotropy degrees of freedom. We investigate the dynamics of the so-called inhomogeneous mixmaster in the "corner" configuration and inferring that one of the two anisotropic variables becomes small enough to explore the uncertainty principle. Then, we apply a standard WKB approximation to the dynamics of the Universe which has macroscopic volume, one macroscopic anisotropy and one microscopic quantum degree of freedom. Our study demonstrates the possibility that the Universe acquires a non-singular classical behavior, retaining the quantum degree of freedom as a small oscillating ripple on a stationary Universe. The role of the so-called "fragmentation process" is also taken into account in outlining the generality of such a behavior in independent local space regions.
description: 7 pages, 1 figure
Weak lensing mass reconstruction using sparsity and a Gaussian random field
Creators: name: Starck, J. -L.
name: Themelis, K. E.
name: Jeffrey, N.
name: Peel, A.
name: Lanusse, F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We introduce a novel approach to reconstruct dark matter mass maps from weak gravitational lensing measurements. The cornerstone of the proposed method lies in a new modelling of the matter density field in the Universe as a mixture of two components:(1) a sparsity-based component that captures the non-Gaussian structure of the field, such as peaks or halos at different spatial scales; and (2) a Gaussian random field, which is known to well represent the linear characteristics of the field.Methods. We propose an algorithm called MCALens which jointly estimates these two components. MCAlens is based on an alternating minimization incorporating both sparse recovery and a proximal iterative Wiener filtering. Experimental results on simulated data show that the proposed method exhibits improved estimation accuracy compared to state-of-the-art mass map reconstruction methods.
description: A&A, accepted
Convergence of the Magnus series
Creators: name: Moan, Per Christian
name: Niesen, Jitse
Publisher: name: arXiv
Year: 2006
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 34A25, 34A30, 65L99

description: The Magnus series is an infinite series which arises in the study of linear ordinary differential equations. If the series converges, then the matrix exponential of the sum equals the fundamental solution of the differential equation. The question considered in this paper is: When does the series converge? The main result establishes a sufficient condition for convergence, which improves on several earlier results.
description: 11 pages; v2: added justification for conjecture, minor clarifications and corrections