cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
MOESM16 of Mutation of 4-coumarate: coenzyme A ligase 1 gene affects lignin biosynthesis and increases the cell wall digestibility in maize brown midrib5 mutants
Creators: name: Xiong, Wangdan
name: Wu, Zhenying
name: Liu, Yuchen
name: Li, Yu
name: Su, Kunlong
name: Bai, Zetao
name: Guo, Siyi
name: Hu, Zhubing
name: Zhang, Zhiming
name: Bao, Yan
name: Sun, Juan
name: Yang, Guofeng
name: Fu, Chunxiang
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Evolutionary Biology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Plant Biology

description: Additional file 16: Fig. S8. The biosynthesis and characterization of FG and FQA in vitro.
Brown dwarf formation by binary disruption
Creators: name: Goodwin, Simon P.
name: Whitworth, Ant
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Context: The principal mechanism by which brown dwarfs form, and its relation to the formation of higher-mass (i.e. hydrogen-burning) stars, is poorly understood. Aims: We advocate a new model for the formation of brown dwarfs. Methods: In this model, brown dwarfs are initially binary companions, formed by gravitational fragmentation of the outer parts (R > 100 AU) of protostellar discs around low-mass hydrogen-burning stars. Most of these binaries are then gently disrupted by passing stars to create a largely single population of brown dwarfs and low-mass hydrogen-burning stars. Results: This idea is consistent with the excess of binaries found in low-density pre-main sequence populations, like that in Taurus, where they should survive longer than in denser clusters. Conclusions: If brown dwarfs form in this way, as companions to more massive stars, the difficulty of forming very low-mass prestellar cores is avoided. Since the disrupted binaries will tend to be those involving low-mass components and wide orbits, and since disruption will be due to the gentle tides of passing stars (rather than violent N-body interactions in small-N sub-clusters), the liberated brown dwarfs will have velocity dispersions and spatial distributions very similar to higher-mass stars, and they will be able to retain discs, and thereby to sustain accretion and outflows. Thus the problems associated with the ejection and turbulence mechanisms can be avoided. This model implies that most, possibly all, stars and brown dwarfs form in binary or multiple systems.
description: 6 pages, no figures. Accepted for A&A
A quadratic lower bound for subset sums
Creators: name: DeVos, Matt
name: Goddyn, Luis
name: Mohar, Bojan
name: Samal, Robert
Publisher: name: arXiv
Year: 2006
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11B13

description: Let A be a finite nonempty subset of an additive abelian group G, and let Σ(A) denote the set of all group elements representable as a sum of some subset of A. We prove that |Σ(A)| >= |H| + 1/64 |A H|^2 where H is the stabilizer of Σ(A). Our result implies that Σ(A) = Z/nZ for every set A of units of Z/nZ with |A| >= 8 \sqrt{n}. This consequence was first proved by Erdős and Heilbronn for n prime, and by Vu (with a weaker constant) for general n.
description: 12 pages
Model-aided Deep Reinforcement Learning for Sample-efficient UAV Trajectory Design in IoT Networks
Creators: name: Esrafilian, Omid
name: Bayerlein, Harald
name: Gesbert, David
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Theory (cs.IT)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Deep Reinforcement Learning (DRL) is gaining attention as a potential approach to design trajectories for autonomous unmanned aerial vehicles (UAV) used as flying access points in the context of cellular or Internet of Things (IoT) connectivity. DRL solutions offer the advantage of on-the-go learning hence relying on very little prior contextual information. A corresponding drawback however lies in the need for many learning episodes which severely restricts the applicability of such approach in real-world time- and energy-constrained missions. Here, we propose a model-aided deep Q-learning approach that, in contrast to previous work, considerably reduces the need for extensive training data samples, while still achieving the overarching goal of DRL, i.e to guide a battery-limited UAV on an efficient data harvesting trajectory, without prior knowledge of wireless channel characteristics and limited knowledge of wireless node locations. The key idea consists in using a small subset of nodes as anchors (i.e. with known location) and learning a model of the propagation environment while implicitly estimating the positions of regular nodes. Interaction with the model allows us to train a deep Q-network (DQN) to approximate the optimal UAV control policy. We show that in comparison with standard DRL approaches, the proposed model-aided approach requires at least one order of magnitude less training data samples to reach identical data collection performance, hence offering a first step towards making DRL a viable solution to the problem.
description: 6 pages, 2 figures, Accepted in GLOBECOM 2021
Plant-Mycorrhiza Percent Infection as Evidence of Coupled Metabolism
Creators: name: Smith, Reginald D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: A common feature of mycorrhizal observation is the growth of the infection on the plant root as a percent of the infected root or root tip length. Often, this is measured as a logistic curve with an eventual, though usually transient, plateau. It is shown in this paper that the periods of stable percent infection in the mycorrhizal growth cycle correspond to periods where both the plant and mycorrhiza growth rates and likely metabolism are tightly coupled.
description: 11 pages; accepted by the Journal of Theoretical Biology (in press)
Additional file 5 of Human placenta mesenchymal stem cell-derived exosomes delay H2O2-induced aging in mouse cholangioids
Creators: name: Chen, Wenyi
name: Zhu, Jiaqi
name: Lin, Feiyan
name: Xu, Yanping
name: Feng, Bing
name: Feng, Xudong
name: Sheng, Xinyu
name: Shi, Xiaowei
name: Pan, Qiaoling
name: Yang, Jinfeng
name: Yu, Jiong
name: Li, Lanjuan
name: Cao, Hongcui
Publisher: name: figshare
Year: 2021
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Biotechnology
subject: Evolutionary Biology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer

description: Additional file 5: Figure S2. The protective effect of hPMSCs-derived exosomes on senescent cholangioids. (a) Supplement fields to Fig. 5a, organoids in Sen and Exo group at 120 h. Typical senescent organoids were noted with white lines circle (scale bar, 200 μm). (b) Analysis of randomly selective fields of senescent organoids in Sen and Exo group at 120 h (two tailed t-test, mean ± SD, n = 4, *P < 0.05). (c) Detailed immunofluorescent staining pictures of typical organoids in Ctrl, Sen, and Exo group after oxidative stress induction for 120 h. Cell-cycle-arrest protein p21WAF1/Cip1 were stained red, CK19 protein were stained cyan, and the cell nuclei were stained blue (scale bar, 100 μm). (d) Typical photos of “secondary organoids” passage from Ctrl, Sen and Exo group, which were cultured for 1 and 5 days (scale bar, 100 μm). (e) Numbers of “secondary organoids”. Organoids in Ctrl, Sen and Exo group were passaged at 120 h. The experiments were repeated for three times. After 1 and 5 days of culture, three fields of each experiment were randomly selected under 4 × object lens and counted using Image J software (ordinary one-way ANOVA, mean ± SD, n = 9, ***P < 0.001, **P < 0.01).
Soluble Hydrogen-bonding Interpolymer Complexes in Water: A Small-Angle Neutron Scattering Study
Creators: name: Sotiropoulou, Maria
name: Oberdisse, Julian
name: Staikos, Georgios
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The hydrogen-bonding interpolymer complexation between poly(acrylic acid) (PAA) and the poly(N,N-dimethylacrylamide) (PDMAM) side chains of the negatively charged graft copolymer poly(acrylic acid-co-2-acrylamido-2-methyl-1-propane sulfonic acid)-graft-poly(N, N dimethylacrylamide) (P(AA-co-AMPSA)-g-PDMAM), containing 48 wt % of PDMAM, and shortly designated as G48, has been studied by small-angle neutron scattering in aqueous solution. Complexation occurs at low pH (pH < 3.75), resulting in the formation of negatively charged colloidal particles, consisting of PAA/PDMAM hydrogen-bonding interpolymer complexes, whose radius is estimated to be around 165 A. As these particles involve more than five graft copolymer chains, they act as stickers between the anionic chains of the graft copolymer backbone. This can explain the characteristic thickening observed in past rheological measurements with these mixtures in the semidilute solution, with decreasing pH. We have also examined the influence of pH and PAA molecular weight on the formation of these nanoparticles.
D6.3 NANOFACTS Dissemination tools and materials II
Creators: name: Savić, Slavica
name: Mladenović, Minja
name: Pavlović, Aleksandra
name: Trajković, Milica
name: Radonic, Vasa
name: Knežević, Nikola
Publisher: name: Zenodo
Year: 2024

description:  

This document provides an overview of the dissemination and communication activities conducted during the NANOFACTS project, specifically focusing on the period from March 2022 to June 2024.
Low-energy neutrinos at off-axis from a standard beta-beam
Creators: name: Lazauskas, R.
name: Balantekin, A. B.
name: De Jesus, J. H.
name: Volpe, C.
Publisher: name: arXiv
Year: 2007
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: We discuss a scenario to extract up to 150 MeV neutrinos at a standard beta-beam facility using one and two detectors off-axis. In particular we show that the high-energy component of the neutrino fluxes can be subtracted through a specific combination of the response of two off-axis detectors. A systematic analysis of the neutrino fluxes using different detector geometries is presented, as well as a comparison with the expected fluxes at a low-energy beta-beam facility. The presented option could offer an alternative way to perform low-energy neutrino experiments.
description: 9 pages, 6 figures
Royidris etiolata Bolton & Fisher, sp. n.
Creators: name: Bolton, Barry
name: Fisher, Brian
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Royidris
Royidris etiolata

description: Royidris etiolata Bolton & Fisher sp. n.
(Figs 51-53, Map 139)
WORKER (holotype in parentheses). TL 3.5-4.2 (3.9), HL 0.88-1.00 (0.98), HW 0.66-0.77 (0.75), CI 75-78 (77), SL 1.04-1.20 (1.14), SI 148-158 (152), PW 0.42-0.50 (0.48), WL 1.14-1.36 (1.30) (11 measured). EL 0.21-0.24 (EL/HW 0.31-0.32). MfL 0.98-1.14 (MfL/HW 1.46-1.50, MfL/MfH 4.00-4.38).
Workers of etiolata mostly conform to the description of notorthotenes. The two are closely related but separated by the comparative dimensions noted below, most striking of which is the extremely elongate scape. In addition, etiolata is a more gracile species. Its head in full-face view has the sides behind the eyes strongly convergent posteriorly, so that the transverse portion of the posterior margin always appears shorter and narrower than in notorthotenes. For comparison of measurements see Table 3.
QUEEN and MALE: unknown.
Holotype worker, Madagascar: Prov. Toliara, Mahafaly Plateau, 6.2 km. 74° ENE Itampolo, 24°39.2'S, 43°59.8'E, 80 m., 21-25.ii.2002, BLF 5796, CASENT0002370, under stone, spiny forest/thicket (Fisher et al.) (CASC).
Paratypes. 9 workers with same data as holotype but 3 workers CASENT0002371, 1 worker CASENT0002372, 1 worker CASENT0002437, 3 workers CASENT0002438, 1 worker CASENT0009799 (CASC, BMNH).
The type-series of etiolata was included in notorthotenes by Heterick (2006), but as the highest SI he records is 132, it would appear that nothing from this series, or the non-paratypic series, was measured. R. etiolata nests under stones in spiny forest.
Non-paratypic material examined. Madagascar: Prov. Toliara, P.N. Tsimanampetsotsa, Mitoho, ENE Efoetse (Fisher et al.).
description: Published as part of Bolton, Barry & Fisher, Brian, 2014, The Madagascan endemic myrmicine ants related to Eutetramorium (Hymenoptera: Formicidae): taxonomy of the genera Eutetramorium Emery, Malagidris nom. n., Myrmisaraka gen. n., Royidris gen. n., and Vitsika gen. n .., pp. 1-99 in Zootaxa 3791 (1) on pages 52-53, DOI: 10.11646/zootaxa.3791.1.1
Affordable downtown housing : innovative U.S. municipal initiatives and a case study of Seattle
Creators: name: Millward, Alison J.
Publisher: name: University of British Columbia
Year: 2010

description: The past decade has witnessed both steep reductions in federal housing assistance and an intensification of local housing problems including homelessness. In light of these trends, this study explores alternative means available to municipalities of meeting the housing needs of low-income households. The methods chosen to accomplish this were two-fold: a literature review and a case study. The literature review revealed that in response to the Reagan administration's 1981 cutbacks to housing programs a new low-income housing delivery system, based largely on public-private partnerships, has emerged from the grass roots level in communities across the United States. In the new production system efforts have focused on preservation rather than new construction, and large for-profit developers have been replaced by nonprofit community-based development corporations and local public agencies. With the assurance of federal subsidies gone, local governments and nonprofit developers have sought to increase the effectiveness of current resources, direct more general revenue to housing activities and have raised new resources. Today, financing packages for low-income projects are usually built upon customized and creative financial packages that are difficult to replicate, and as a result, no definitive solutions have yet been found. Despite the hard work and creativity that has gone into developing low-income housing in the U.S. over the past decade local programs have been able to meet only a fraction of the country's housing needs. The case study method was chosen to focus on the City of Seattle, Washington's specific housing initiatives. The City's response has closely followed the national experience. A new delivery system has emerged which depends largely on the efforts of the City's municipal government, through its Department of Community Development, and the community's growing nonprofit sector. As a matter of policy Seattle has chosen to spend most of its low-income housing dollars on preserving the downtown's remaining 7,311 low-income units. The City does not. build housing itself, but instead, acts as a "bank" loaning money generated, for the most part, by off-budget strategies to nonprofit housing developers to rehabilitate existing low-income units to meet housing code standards. Seattle's housing programs have had mixed results. Despite their efforts, due to downtown's expansion, the City has continued to lose low-income units in the downtown to demolition and rent increases, no gain has been made on the City's overall housing need, and while the City has replaced the lost federal subsidies, it has not created significant ongoing revenue streams for future housing development. Results of this study indicate that, only the long term commitment of federal funds to a national housing strategy can stem the growing tide of homelessness across the U.S. and avert, a deepening of the country's housing crisis.
Extracting Dynamical Frequencies from Invariants of Motion in Finite-Dimensional Nonlinear Integrable Systems
Creators: name: Mitchell, Chad E.
name: Ryne, Robert D.
name: Hwang, Kilean
name: Nagaitsev, Sergei
name: Zolkin, Timofey
Publisher: name: arXiv
Year: 2021
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: Integrable dynamical systems play an important role in many areas of science, including accelerator and plasma physics. An integrable dynamical system with $n$ degrees of freedom (DOF) possesses $n$ nontrivial integrals of motion, and can be solved, in principle, by covering the phase space with one or more charts in which the dynamics can be described using action-angle coordinates. To obtain the frequencies of motion, both the transformation to action-angle coordinates and its inverse must be known in explicit form. However, no general algorithm exists for constructing this transformation explicitly from a set of $n$ known (and generally coupled) integrals of motion. In this paper we describe how one can determine the dynamical frequencies of the motion as functions of these $n$ integrals in the absence of explicitly-known action-angle variables, and we provide several examples.
description: Accepted, to appear in Phys. Rev. E
Vibronic "Rabi resonances" in harmonic and hard-wall ion-traps for arbitrary laser intensity and detuning
Creators: name: Lizuain, I.
name: Muga, J. G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate laser-driven vibronic transitions of a single two-level atomic ion in harmonic and hard wall traps. In the Lamb-Dicke regime, for tuned or detuned lasers with respect to the internal frequency of the ion, and weak or strong laser intensities, the vibronic transitions occur at well isolated "Rabi Resonances", where the detuning-adapted Rabi frequency coincides with the level spacing of the vibrational modes. These vibronic resonances are characterized as avoided crossings of the dressed levels (eigenvalues of the full Hamiltonian). Their peculiarities due to symmetry constraints and trapping potential are also examined.
description: 7 pages, 4 figures
Modeling how social network algorithms can influence opinion polarization
Creators: name: de Arruda, Henrique F.
name: Cardoso, Felipe M.
name: de Arruda, Guilherme F.
name: Hernández, Alexis R.
name: Costa, Luciano da F.
name: Moreno, Yamir
Publisher: name: arXiv
Year: 2021
Subjects: subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: Among different aspects of social networks, dynamics have been proposed to simulate how opinions can be transmitted. In this study, we propose a model that simulates the communication in an online social network, in which the posts are created from external information. We considered the nodes and edges of a network as users and their friendship, respectively. A real number is associated with each user representing its opinion. The dynamics starts with a user that has contact with a random opinion, and, according to a given probability function, this individual can post this opinion. This step is henceforth called post transmission. In the next step, called post distribution, another probability function is employed to select the user's friends that could see the post. Post transmission and distribution represent the user and the social network algorithm, respectively. If an individual has contact with a post, its opinion can be attracted or repulsed. Furthermore, individuals that are repulsed can change their friendship through a rewiring. These steps are executed various times until the dynamics converge. Several impressive results were obtained, which include the formation of scenarios of polarization and consensus of opinions. In the case of echo chambers, the possibility of rewiring probability is found to be decisive. However, for particular network topologies, with a well-defined community structure, this effect can also happen. All in all, the results indicate that the post distribution strategy is crucial to mitigate or promote polarization.
SN 2006aj Associated with XRF 060218 At Late Phases: Nucleosynthesis-Signature of A Neutron Star-Driven Explosion
Creators: name: Maeda, Keiichi
name: Kawabata, Koji
name: Tanaka, Masaomi
name: Nomoto, Ken'ichi
name: Tominaga, Nozomu
name: Hattori, Takashi
name: Minezaki, Takeo
name: Kuroda, Takami
name: Suzuki, Tomoharu
name: Deng, Jinsong
name: Mazzali, Paolo A.
name: Pian, Elena
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Optical spectroscopy and photometry of SN 2006aj have been performed with the Subaru telescope at t > 200 days after GRB060218, the X-ray Flash with which it was associated. Strong nebular emission-lines with an expansion velocity of v ~ 7,300 km/s were detected. The peaked but relatively broad [OI]6300,6363 suggests the existence of ~ 2 Msun of materials in which ~1.3 Msun is oxygen. The core might be produced by a mildly asymmetric explosion. The spectra are unique among SNe Ic in (1) the absence of [CaII]7291,7324 emission, and (2) a strong emission feature at ~ 7400A, which requires ~ 0.05 Msun of newly-synthesized 58Ni. Such a large amount of stable neutron-rich Ni strongly indicates the formation of a neutron star. The progenitor and the explosion energy are constrained to 18 Msun < Mms < 22 Msun and E ~ (1 - 3) 10^{51} erg, respectively.
description: Accepted for Publication in the Astrophysical Journal Letters (2007, ApJ, 658, L5). 8 pages, including 1 table and 3 figures. Typos corrected
Full molecular dynamics simulations of molecular liquids for single-beam spectrally controlled two-dimensional Raman spectroscopy
Creators: name: Jo, Ju-Yeon
name: Tanimura, Yoshitaka
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Single-beam spectrally controlled (SBSC) two-dimensional (2D) Raman spectroscopy is a unique 2D vibrational measurement technique utilizing trains of short pulses that are generated from a single broadband pulse by pulse shaping. This approach overcomes the difficulty of 2D Raman spectroscopy in dealing with small-signal extraction and avoids complicated low-order cascading effects, thus providing a new possibility for measuring the intramolecular and intermolecular modes of molecular liquids using fifth-order 2D Raman spectroscopy. Recently, for quantitatively investigating the mode-mode coupling mechanism, Hurwitz et al. [Optics Express 28, 3803 (2020)] have developed a new pulse design for this measurement to separate the contributions of the fifth- and third-order polarizations, which are often overlapped in the original single-beam measurements. Here, we describe a method for simulating these original measurements and the new 2D Raman measurements on the basis of a second-order response function approach. We carry out full molecular dynamics simulations for carbon tetrachloride and liquid water using an equilibrium-nonequilibrium hybrid algorithm, with the aim of explaining the key features of the SBSC 2D Raman spectroscopic method from a theoretical point of view. The predicted signal profiles and intensities provide valuable information that can be applied to 2D spectroscopy experiments, allowing them to be carried out more efficiently.
description: 10 pages 8 figures
Correlated electron-phonon transport from molecular dynamics with quantum baths
Creators: name: Lu, J. T.
name: Wang, Jian-Sheng
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Based on generalized quantum Langevin equations for the tight-binding wave function amplitudes and lattice displacements, electron and phonon quantum transport are obtained exactly using molecular dynamics (MD) in the ballistic regime. The electron-phonon interactions can be handled with a quasi-classical approximation. Both charge and energy transport and their interplay can be studied. We compare the MD results with that of a fully quantum mechanical nonequilibrium Green's function (NEGF) approach for the electron currents. We find a ballistic to diffusive transition of the electron conduction in one dimensional chains as the chain length increases.
description: expanded version, fig.2 was corrected
G515, Revisited. I. Stellar Populations And Evidence Of Nuclear Activity In A Luminous "E+A" Galaxy
Creators: name: Liu, Charles T.
name: Hooper, Eric J.
name: O'Neil, Karen
name: Thompson, David
name: Wolf, Marsha
name: Lisker, Thorsten
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present multiwavelength observations of the very luminous "E+A" galaxy known as G515 (J152426.55+080906.7), including deep K_s imaging, spatially resolved H-alpha spectroscopy, and radio observations. The data, together with detailed spectral synthesis of the galaxy's integrated stellar population, show that G515 is a ~1 Gyr old post-merger, post-starburst galaxy. We detect no Balmer line emission in the galaxy, although there is a small amount of [NII]6548,6583A emission. The galaxy's H I mass has a 2-sigma upper limit of 1.0 * 10^9 solar masses. IRAS detections in the 60-micron and 100-micron bands indicate a far infrared luminosity of ~5.8 * 10^10 solar luminosities. A small amount (~3 mJy) of radio continuum flux, which appears to be variable, has been detected. The data suggest that G515 may have once been an ultraluminous infrared galaxy, and may harbor a weak, dust-obscured active nucleus.
description: 25 pages, 7 figures, accepted to ApJ
Parametrizations of local vertex corrections from weak to strong coupling: importance of the Hedin three-leg vertex
Creators: name: Harkov, Viktor
name: Lichtenstein, Alexander I.
name: Krien, Friedrich
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In the study of correlated systems, approximations based on the dynamical mean-field theory (DMFT) provide a practical way to take local vertex corrections into account, which capture, respectively, particle-particle screening at weak coupling and the formation of the local moment at strong coupling. We show that in both limits the local vertex corrections can be efficiently parametrized in terms of single-boson exchange, such that the two-particle physics described by DMFT and its diagrammatic extensions is recovered to good approximation and at a reduced computational cost. Our investigation highlights the importance of the frequency-dependent fermion-boson coupling (Hedin vertex) for local vertex corrections. Namely, at weak coupling the fermion-spin-boson coupling suppresses the Néel temperature of the DMFT approximation compared to the static mean-field, whereas for large interaction it facilitates a huge enhancement of local spin-fluctuation exchange, giving rise to the effective-exchange energy scale $4t^2/U$. We find that parametrizations of the vertex which neglect the nontrivial part of the fermion-boson coupling fail qualitatively at strong coupling.
Automatic Quantification of Facial Asymmetry using Facial Landmarks
Creators: name: Taufique, Abu Md Niamul
name: Savakis, Andreas
name: Leckenby, Jonathan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences
subject: I.4; I.5

description: One-sided facial paralysis causes uneven movements of facial muscles on the sides of the face. Physicians currently assess facial asymmetry in a subjective manner based on their clinical experience. This paper proposes a novel method to provide an objective and quantitative asymmetry score for frontal faces. Our metric has the potential to help physicians for diagnosis as well as monitoring the rehabilitation of patients with one-sided facial paralysis. A deep learning based landmark detection technique is used to estimate style invariant facial landmark points and dense optical flow is used to generate motion maps from a short sequence of frames. Six face regions are considered corresponding to the left and right parts of the forehead, eyes, and mouth. Motion is computed and compared between the left and the right parts of each region of interest to estimate the symmetry score. For testing, asymmetric sequences are synthetically generated from a facial expression dataset. A score equation is developed to quantify symmetry in both symmetric and asymmetric face sequences.
description: 5 pages, 4 figures
Planning for community-based services for the elderly in small towns in British Columbia
Creators: name: Murphy, Aileen
Publisher: name: University of British Columbia
Year: 2010

description: Elders who are living independently in the community (independent elders refers to all seniors who are living in the community as opposed to in an institution) often require support services, housing and transportation services. Unfortunately, research on North American elders repeatedly points to deficiencies in the health and human services that are available in small towns when compared to those available in urban centres. A lack of specialized medical and social services, few housing options and no public transportation services are characteristic of most small towns. For this thesis, seniors, municipal officials and formal care-givers in sixteen small towns in British Columbia were surveyed in order to determine the needs of small town elders in this province and the effectiveness of the present system in addressing these needs. The results of the seniors' survey indicated that significant proportions of the elderly living in small B.C. towns require assistance in maintaining their homes and with transportation. While the elders who reported difficulties coping with housework tended to be receiving assistance, not all those who had difficulty with yardwork, repairs and transportation were being helped. The interdependence between the support service, housing and transportation related needs of the elderly was apparent from the survey results. An inventory of the community-based services available in the sixteen B.C towns revealed that size of town is related to the number of services. In general, the larger the town, the greater the array of services for the elderly. However, size of town was not the only determining factor. Towns in which the local community had become involved in the issue of community-based services for the elderly typically had services that were not available in towns of comparable size. Under the Canadian Constitution, the provincial government is primarily responsible for the provision of health and social services. However, there are constraints or obstacles inherent to small towns which prevent services from being provided by the province. These include the fact that in a small town there is generally a shortage of personnel and organizational resources which enable a community to secure needed services from senior levels of government. As well, the distances among people and between people and services in rural environments, as compared to in urban environments, require special consideration. The results of this examination of the small town elderly in B.C. and the community-based services available to them suggest that there is a need for improvement to the present system. Enhancing the involvement of the local community in the provision of community-based services for the elderly is suggested as a possible strategy. As well, services which are at an appropriate scale and accessible to the rural elderly need to be developed.
Improving BrowserWatermarking with Eye Tracking
Creators: name: Nikolai-Iraj Sanamrad
Publisher: name: figshare
Year: 2021
Subjects: Applied Computer Science

description: The easiest and most accessible method for fingerprinting used by online services is browser fingerprinting. Browser fingerprinting distinguishes between user devices using information about the browser and the system, which is usually provided by most browsers to any website, even when cookies are turned o?ff. This data is usually unique enough even for identical devices, since it heavily relies on device usage by the user. In this paper, browser fingerprinting is being improved with the usage of information
acquired from an eye tracker
Competence Development, the CodeRefinery way
Creators: name: Bast, Radovan
Publisher: name: Zenodo
Year: 2024

description: Presented at https://digitalcurriculum.au.dk/conference.

Sources: https://github.com/coderefinery/presentations

The PDF does not show animations but you can see them here: https://cicero.xyz/v3/remark/0.14.0/github.com/coderefinery/presentations/main/2024-aarhus.md/
Additional file 5 of Molecular and expression characterization of insulin-like signaling in development and metabolism of Aedes albopictus
Creators: name: Dai, Yi
name: Li, Xin
name: Ding, Jinying
name: Liang, Zihan
name: Guo, Renxian
name: Yi, Tangwei
name: Zhu, Yihan
name: Chen, Siqi
name: Liang, Shaohui
name: Liu, Wenquan
Publisher: name: figshare
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 5: Table S1. The accession number of dipteran ILP and InR genes in NCBI. Table S2. The primer sequences for RT-qPCR analysis and dsRNA amplification.
Pulsed versus DC I-V characteristics of resistive manganites
Creators: name: Fisher, B.
name: Genossar, J.
name: Chashka, K. B.
name: Patlagan, L.
name: Reisner, G. M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report on pulsed and DC I-V characteristics of polycrystalline samples of three charge-ordered manganites, Pr_{2/3}Ca_{1/3}MnO_3, Pr_{1/2}Ca_{1/2}MnO_3, Bi_{1/2}Sr_{1/2}MnO_3 and of a double-perovskite Sr_2MnReO_6, in a temperature range where their ohmic resistivity obeys the Efros-Shklovskii variable range hopping relation. For all samples, the DC I(V) exhibits at high currents negative differential resistance and hysteresis, which mask a perfectly ohmic or a moderately nonohmic conductivity obtained by pulsed measurements. This demonstrates that the widely used DC I-V measurements are usually misleading.
description: 6 pages, 4 figures. Accepted for publication to APL
Bound on minimal universal extra dimensions from Bbar -> X_s gamma
Creators: name: Haisch, Ulrich
name: Weiler, Andreas
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We reexamine the constraints on universal extra dimensional models arising from the inclusive radiative Bbar -> X_s gamma decay. We take into account the leading order contributions due to the exchange of Kaluza-Klein modes as well as the available next-to-next-to-leading order corrections to the Bbar -> X_s gamma branching ratio in the standard model. For the case of one large flat universal extra dimension, we obtain a lower bound on the inverse compactification radius 1/R > 600 GeV at 95% confidence level that is independent of the Higgs mass.
description: 4 pages, 3 figures; references added, matches version to appear in PRD
Traffic signal prediction on transportation networks using spatio-temporal correlations on graphs
Creators: name: Kwak, Semin
name: Geroliminis, Nikolas
name: Frossard, Pascal
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Multivariate time series forecasting poses challenges as the variables are intertwined in time and space, like in the case of traffic signals. Defining signals on graphs relaxes such complexities by representing the evolution of signals over a space using relevant graph kernels such as the heat diffusion kernel. However, this kernel alone does not fully capture the actual dynamics of the data as it only relies on the graph structure. The gap can be filled by combining the graph kernel representation with data-driven models that utilize historical data. This paper proposes a traffic propagation model that merges multiple heat diffusion kernels into a data-driven prediction model to forecast traffic signals. We optimize the model parameters using Bayesian inference to minimize the prediction errors and, consequently, determine the mixing ratio of the two approaches. Such mixing ratio strongly depends on training data size and data anomalies, which typically correspond to the peak hours for traffic data. The proposed model demonstrates prediction accuracy comparable to that of the state-of-the-art deep neural networks with lower computational effort. It notably achieves excellent performance for long-term prediction through the inheritance of periodicity modeling in data-driven models.
Erstellung und Bewertung einesWebbrowserbasierten Frameworks zur Datenakquise für Studien
Creators: name: Oles, Oliwia
Publisher: name: figshare
Year: 2021
Subjects: Applied Computer Science

description: Diese Arbeit beschäftigt sich mit der Ertsellung und Bewertung eines Frameworks zur Durchführung und Datenerfassung von Studien, wie beispielswweise eine
Blickpostionsvorhersage oder Emotionserkennung. Der Eyetracker basiert auf der webgazer.js Biblitohek der Brown Universität und die Emotionserkennung beruht
auf einer FrontEnd-Emotionserkennungs Bibliothek auf Grundlage von der Google Shape Detection API. Beide Bibiliotheken, wurden implementiert, um sie für Studien
zu gebrauchen. Zusätzlich zu diesen Daten werden auch noch Angaben wie das Alter und das Geschlecht, jedoch nur auf freiwilliger Basis, erfasst, um mehr Aussagekraft
zu erhalten. Anschließend wird das Framework getestet und bewertet, um zu erfahren, ob es genauso gut in der Praxis wie in der Theorie funktioniert, da es sich hierbei um komplett clientseitige Anwendungen handelt. Im Normalfall benötigen solche Anwendungen nämlich noch zusätzliche Hardware, um zu funktionieren. Die verwendeten Biblitoheken kommen jedoch ohne diese aus, fordern nur eine funktionierende Webcam und bestehen nur auf JavaScript Code. Deshalb stellt sich hier nun die Frage, ob eine rein clientseitige Anwendung vergleichbar gut mit
anderen Anwednungen in diesen Bereichen funktioniert und ob sich die Daten gut erfassen lassen.
D-affinity and Frobenius morphism on quadrics
Creators: name: Langer, Adrian
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Geometry (math.AG)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 14F05, 13D40, 18E30

description: We compute decomposition of Frobenius push-forwards of line bundles on quadrics into a direct sum of line bundles and spinor bundles. As an application we show when the Frobenius push-forward gives a tilting bundle and we apply it to study D-modules on quadrics.
description: 24 pages; corrected proof of Proposition 2.1
Visualization of Deep Transfer Learning In SAR Imagery
Creators: name: Taufique, Abu Md Niamul
name: Nagananda, Navya
name: Savakis, Andreas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences
subject: I.4; I.5

description: Synthetic Aperture Radar (SAR) imagery has diverse applications in land and marine surveillance. Unlike electro-optical (EO) systems, these systems are not affected by weather conditions and can be used in the day and night times. With the growing importance of SAR imagery, it would be desirable if models trained on widely available EO datasets can also be used for SAR images. In this work, we consider transfer learning to leverage deep features from a network trained on an EO ships dataset and generate predictions on SAR imagery. Furthermore, by exploring the network activations in the form of class-activation maps (CAMs), we visualize the transfer learning process to SAR imagery and gain insight on how a deep network interprets a new modality.
description: 4 pages, 5 figures
Deformation around neutron-rich Cr isotopes in axially symmetric Skyrme-Hatree-Fock-Bogoliubov method
Creators: name: Oba, Hiroshi
name: Matsuo, Masayuki
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We analyse deformation mechanism in neutron-rich Cr, Fe and Ti isotopes with N=32-44 by means of a Skyrme-Hartree-Fock-Bogoliubov mean-field code employing a two-dimensional mesh representation in the cylindrical coordinate system. Evaluating systematically the quadrupole deformation energy, we show that the Skyrme parameter set SkM* gives a quadrupole instability around the neutron number N$\sim$38-42 in Cr isotopes, where the deformation energy curve suggests a transitional behavior with a shallow minimum extending to a large prolate deformation. Roles of a deformed N=38 gap and the position of the neutron g9/2 orbit are analysed in detail.
Entanglement of two disjoint intervals in conformal field theory and the 2D Coulomb gas on a lattice
Creators: name: Grava, Tamara
name: Kels, Andrew P.
name: Tonni, Erik
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In the conformal field theories given by the Ising and Dirac models, when the system is in the ground state, the moments of the reduced density matrix of two disjoint intervals and of its partial transpose have been written as partition functions on higher genus Riemann surfaces with $\mathbb{Z}_n$ symmetry. We show that these partition functions can be expressed as the grand canonical partition functions of the two-dimensional two component classical Coulomb gas on certain circular lattices at specific values of the coupling constant.
description: 5 pages, 1 figure. v2: published version
Initial Parton Distribution just after Heavy Ion Collisions
Creators: name: Shin, Ghi R.
name: Lee, Kang S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the initial distribution of a parton system which is formed just after relativistic heavy ion collision by the elastic scattering among the constituent partons in details and analyze the baryon and strangeness contents of the primary parton system. We present the rapidity and energy distributions of the system.
description: 17 pages
On the periodicity of cardiovascular fluid dynamics simulations
Creators: name: Pfaller, Martin R.
name: Pham, Jonathan
name: Wilson, Nathan M.
name: Parker, David W.
name: Marsden, Alison L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Medical Physics (physics.med-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Three-dimensional cardiovascular fluid dynamics simulations typically require computation of several cardiac cycles before they reach a periodic solution, rendering them computationally expensive. Furthermore, there is currently no standardized method to determine whether a simulation has yet reached that periodic state. In this work, we propose use of the asymptotic error measure to quantify the difference between simulation results and their ideal periodic state using lumped-parameter modeling. We further show that initial conditions are crucial in reducing computational time and develop an automated framework to generate appropriate initial conditions from a one-dimensional model of blood flow. We demonstrate the performance of our initialization method using six patient-specific models from the Vascular Model Repository. In our examples, our initialization protocol achieves periodic convergence within one or two cardiac cycles, leading to a significant reduction in computational cost compared to standard methods. All computational tools used in this work are implemented in the open-source software platform SimVascular. Automatically generated initial conditions have the potential to significantly reduce computation time in cardiovascular fluid dynamics simulations.
Abundance analysis of cool extreme helium star: LSS 3378
Creators: name: Pandey, Gajendra
name: Reddy, Bacham E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Abundance analysis of the cool extreme helium (EHe) star LSS 3378 is presented. The abundance analysis is done using LTE line formation and LTE model atmospheres constructed for EHe stars. The atmosphere of LSS 3378 shows evidence of H-burning, He-burning, and s-process nucleosynthesis. The derived abundances of iron-peak and alpha-elements indicate absence of selective fractionation or any other processes that can distort chemical composition of these elements. Hence, the Fe abundance (log epsilon(Fe) = 6.1) is adopted as an initial metallicity indicator. The measured abundances of LSS 3378 are compared with those of R Coronae Borealis (RCB) stars and with rest of the EHe stars as a group.
description: 7 pages, 4 figures, 3 tables, MNRAS format, accepted for publication in MNRAS
Lake sediment-based sediment yields and erosion rates in the Coast Mountains, British Columbia
Creators: name: Owens, Philip Neil
Publisher: name: University of British Columbia
Year: 2010

description: Lake sediments have been identified as an alternative to contemporary stream monitoring to establish catchment sediment yields and infer erosion rates. This is due primarily to the longer time period over which the former is based, which makes established yields and rates more representative of means or trends in sedimentation. Studies using lake sediments to establish sediment yields have generally assumed that all the sediment contained within a lake is derived from erosion of the catchment under investigation. This study undermines this assumption by constructing a comprehensive lake sediment budget to asses the relative contributions from various sources. Late Holocene (the last 2350 years) rates of sediment yield and erosion are established for 3 small (<1 km²) catchments that straddle timberline (1620 - 1850 m above sea level) in the Coast Mountains of British Columbia. Due to the temporal and spatial variability of sedimentation in lakes, sediment cores for each lake were taken using a multiple-core approach. Chronology was established by the presence of a dated tephra layer. Once the cores were extracted, corrections were made for sediment derived from aquatic productivity (organic matter and biogenic silica), regional aeolian dust input, the erosion of lake banks and for outflow losses. These sources of sediment could account for between 55 and 99% of the sediment contained within the 3 lakes. Lake trap efficiency ranges from low to >70%. Once corrected, estimates of sediment yield range from 4 and 244 kg km⁻²yr⁻¹. The rate of regional aeolian deposition indicates that, in certain areas, these catchments are undergoing net deposition and not net erosion. The implications for lake sediment-based sediment yields and erosion rates are examined. When placed in a regional context sediment yields are more than 1 order of magnitude lower than larger scale basins due to changes in sediment storage. The spatial and temporal representativeness of the data are also evaluated.
Supplementary document for Quantum phase modulation with acoustic cavities and quantum dots - 5777171.pdf
Creators: name: Imany, Poolad
name: Wang, Zixuan
name: DeCrescent, Ryan
name: Boutelle, Robert
name: McDonald, Corey
name: Autry, Travis
name: Berweger, Samuel
name: Kabos, Pavel
name: Nam, Sae Woo
name: Mirin, Richard
Publisher: name: Optica Publishing Group
Year: 2022
Subjects: Uncategorized

description: Supplement 1