cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Policy configuration and management in attribute based access control
Creators: name: Batra, Gunjan
Publisher: name: No Publisher Supplied
Year: 2021

description: The flexibility, scalability, dynamic nature, portability and identity-less features of Attribute Based Access Control (ABAC) make it an attractive choice to be employed as a means to enforce access control in many application domains.However, in order to realize the true benefit of ABAC, it is necessary to develop mechanisms to effectively configure, deploy, maintain, and manage it. Towards this end, this dissertation makes the following four contributions. First, we develop two ABAC policy mining algorithms that utilize existing permissions of users on the resources as well as the attribute information for both users and resources to automatically discover ABAC policies. Next, we develop an approach that can incrementally maintain ABAC policies by appropriately modifying the policy based on updates in permission and/or user/object attributes. Since commercially viable systems for implementation of ABAC are not widely available, we next address the deployment of ABAC on legacy systems. Specifically, we develop a low-cost approach for the translation of an ABAC policy into a form that can be adopted by an RBAC system. Our fourth and final contribution addresses policy reconciliation and migration in collaborative environments. Specifically, we propose the notion of policy equivalence in ABAC and develop methods to evaluate ABAC policy similarity. We also propose two different approaches for accomplishing policy reconciliation and an approach for policy migration. Together, this work helps organization to migrate to ABAC from the traditional discretionary access control (DAC), to efficiently maintain it in light of situational changes, and to deploy it in legacy systems and enable effective collaboration across organizations while respecting their individual security policies.
Ternary Semigroups Characterized by Spherical Fuzzy Bi-ideals
Creators: name: Warud Nakkhasen
Publisher: name: Research Administration Division
Year: 2023
Subjects: Regularternarysemigroup
Sphericalfuzzyset
Sphericalfuzzyideal
Sphericalfuzzy bi-ideal
Weakly regular ternary semigroup

description: Science & Technology Asia, 28, 4, 86-107
Checking Non-Flow Assumptions and Results via PHENIX Published Correlations in $p$$+$$p$, $p$$+$Au, $d$$+$Au, $^3$He$+$Au at $\sqrt{s_{NN}}$ = 200 GeV
Creators: name: Nagle, J. L.
name: Belmont, R.
name: Lim, S. H.
name: Seidlitz, B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Recently the PHENIX Collaboration has made available two-particle correlation Fourier coefficients for multiple detector combinations in minimum bias p+p and 0-5% central p+Au, d+Au, 3He+Au collisions at 200 GeV [1]. Using these coefficients for three sets of two-particle correlations, azimuthal anisotropy coefficients $v_2$ and $v_3$ are extracted for midrapidity charged hadrons as a function of transverse momentum. In this paper, we use the available coefficients to explore various non-flow hypotheses as well as compare the results with theoretical model calculations. The non-flow methods fail basic closure tests with AMPT and PYTHIA/ANGANTYR, particularly when including correlations with particles in the low multiplicity light-projectile going direction. In data, the non-flow adjusted $v_2$ results are modestly lower in p+Au and the adjusted $v_3$ results are more significantly higher in p+Au and d+Au. However, the resulting higher values for the ratio $v_3/v_2$ in p+Au at RHIC compared to p+Pb at the LHC is additional evidence for a significant over-correction. Incorporating these additional checks, the conclusion that these flow coefficients are dominated by initial geometry coupled with final-state interactions (e.g.~hydrodynamic expansion of quark-gluon plasma) remains true, and explanations based on initial-state glasma are ruled out. The detailed balance between intrinsic and fluctuation-driven geometry and the exact role of weakly versus strongly-coupled pre-hydrodynamic evolution remains an open question for triangular flow, requiring further theoretical and experimental investigation.
description: 14 pages, 13 figures, submitted for publication
Small-scale flows in SUMER and TRACE high-cadence co-observations
Creators: name: Madjarska, M. S.
name: Doyle, J. G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on the physical properties of small-scale transient flows observed simultaneously at high cadence with the SUMER spectrometer and the TRACE imager in the plage area of an active region. Our major objective is to provide a better understanding of the nature of transient phenomena in the solar atmosphere by using high-cadence imager and spectrometer co-observations at similar spatial and temporal resolution. A sequence of TRACE Fe IX/X 171 A and high-resolution MDI images were analysed together with simultaneously obtained SUMER observations in spectral lines covering a temperature range from 10 000 K to 1 MK. We reveal the existence of numerous transient flows in small-scale loops (up to 30 Mm) observed in the plage area of an active region. These flows have temperatures from 10 000 K (the low temperature limit of our observations) to 250 000 K. The coronal response of these features is uncertain due to a blending of the observed coronal line Mg X 624.85 A. The duration of the events ranges from 60 s to 19 min depending on the loop size. Some of the flows reach supersonic velocities. The Doppler shifts often associated with explosive events or bi-directional jets can actually be identified with flows (some of them reaching supersonic velocities) in small-scale loops. Additionally, we demonstrate how a line-of-sight effect can give misleading information on the nature of the observed phenomena if only either an imager or a spectrometer is used.
description: 7 pages, 6 figures, accepted by A&A
Model for Predicting Dosage of Superplasticizer for Slump Recovery of Fresh Concrete
Creators: name: Parnthep Julnipitawong
Publisher: name: Research Administration Division
Year: 2023
Subjects: Redosing
Slump loss
Slump recovery
Second dosage
Superplasticizer

description: Science & Technology Asia, 28, 4, 115-122
Electromagnetic Signatures of Relativistic Explosions in AGN Disks
Creators: name: Perna, Rosalba
name: Lazzati, Davide
name: Cantiello, Matteo
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The disks of Active Galactic Nuclei (AGNs), traditionally studied as the feeders of the supermassive black holes (SMBHs) at their centers, have recently triggered a lot of interest also as hosts to massive stars and hence their neutron star (NS) and black hole (BH) remnants. Migration traps and gas torques in these disks favor binary formation and enhance the rate of compact object mergers. In these environments both long gamma-ray bursts (GRBs) from the death of massive stars and short GRBs from NS-NS and NS-BH mergers are expected. However, their properties in the unique environments of AGN disks have never been studied. Here we show that GRBs in AGNs can display unique features, owing to the unusual relative position of the shocks that characterize the burst evolution and the Thomson photosphere of the AGN disk. In dense environments, for example, the external shock develops before the internal shocks, leading to prompt emission powered by a relativistic reverse shock. The transient's time evolution is also compressed, yielding afterglow emission that is much brighter and peaks much earlier than for GRBs in the interstellar medium. Additionally, in regions of the disk that are sufficiently dense and extended, the light curves are dominated by diffusion, since the fireball is trapped inside the disc photosphere. These diffusion-dominated transients emerge on timescales of days in disks around SMBHs of $\sim 10^6 M_\odot$ to years for SMBHs of $\sim 10^8 M_\odot$. Finally, a large fraction of events, especially in AGNs with SMBHs $\lesssim 10^7 M_\odot$, display time-variable absorption in the X-ray band.
description: Submitted to ApJ Letters
Generalized N=1 Orientifold Compactifications and the Hitchin functionals
Creators: name: Benmachiche, Iman
name: Grimm, Thomas W.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The four-dimensional N=1 supergravity theories arising in compactifications of type IIA and type IIB on generalized orientifold backgrounds with background fluxes are discussed. The Kahler potentials are derived for reductions on SU(3) structure orientifolds and shown to consist of the logarithm of the two Hitchin functionals. These are functions of even and odd forms parameterizing the geometry of the internal manifold, the B-field and the dilaton. The superpotentials induced by background fluxes and the non-Calabi-Yau geometry are determined by a reduction of the type IIA and type IIB fermionic actions on SU(3) and generalized SU(3) x SU(3) manifolds. Mirror spaces of Calabi-Yau orientifolds with electric and part of the magnetic NS-NS fluxes are conjectured to be certain SU(3) x SU(3) structure manifolds. Evidence for this identification is provided by comparing the generalized type IIA and type IIB superpotentials.
description: 57 pages, references added
The stellar halo and outer disk of M33
Creators: name: McConnachie, Alan W.
name: Chapman, Scott C.
name: Ibata, Rodrigo A.
name: Ferguson, Annette M. N.
name: Irwin, Mike J.
name: Lewis, Geraint F.
name: Tanvir, Nial R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present first results from a Keck/DEIMOS spectroscopic survey of red giant branch (RGB) stars in M33. The radial velocity distributions of the stars in our fields are well described by three Gaussian components, corresponding to a candidate halo component with an uncorrected radial velocity dispersion of sigma ~ 50km/s, a candidate disk component with a dispersion sigma ~ 16km/s, and a third component offset from the disk by ~ 50km/s, but for which the dispersion is not well constrained. By comparing our data to a model of M33 based upon its HI rotation curve, we find that the stellar disk is offset in velocity by ~ 25km/s from the HI disk, consistent with the warping which exists between these components. The spectroscopic metallicity of the halo component is [Fe/H] ~ -1.5, significantly more metal-poor than the implied metallicity of the disk population ([Fe/H] ~ -0.9), which also has a broader colour dispersion than the halo population. These data represent the first detections of individual stars in the halo of M33 and, despite being ~ 10 times less massive than M31 or the Milky Way, all three of these disk galaxies have stellar halo components with a similar metallicity. The color distribution of the third component is different to the disk and the halo, but is similar to that expected for a single, coeval, stellar population, and could represent a stellar stream. More observations are required to determine the true nature of this intriguing third kinematic component in M33.
description: Accepted to ApJ Letters. 12 pages (ApJ preprint style)
Anisotropy of Magnetohydrodynamic Turbulence and Polarization of the Spectral Lines of Molecules
Creators: name: Wiebe, D. S.
name: Watson, W. D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The anisotropy of velocities in MHD turbulence is demonstrated explicitly by calculating the velocity gradients as a function of direction in representative simulations of decaying turbulence. It follows that the optical depths of spectral lines are anisotropic when there is MHD turbulence, and that this anisotropy influences the polarization characteristics of the emergent radiation. We calculate the linear polarization that results for the microwave lines of the CO molecule in star-forming gas and show that it is comparable to the polarization that is observed. This and our earlier result--that the anisotropy of MHD turbulence may be the cause for the absence of the Zeeman $π$-components in the spectra of OH mainline masers--are the first demonstrations of the occurrence of anisotropy in the optical depths caused by MHD turbulence. A non-local approximation is developed for the radiative transfer and the results are compared with those from a local (LVG) approximation.
description: ApJ, accepted
Additional file 6 of Dropouts in randomized clinical trials of Korean medicine interventions: a systematic review and meta-analysis
Creators: name: Sae-Rom Jeon
name: Dongwoo Nam
name: Kim, Tae-Hun
Publisher: name: figshare
Year: 2021
Subjects: Medicine
Biotechnology
Science Policy

description: Additional file 6. : Reasons for dropping out in the 21 studies of acupuncture.
Learning to Run with Potential-Based Reward Shaping and Demonstrations from Video Data
Creators: name: Malysheva, Aleksandra
name: Kudenko, Daniel
name: Shpilman, Aleksei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Learning to produce efficient movement behaviour for humanoid robots from scratch is a hard problem, as has been illustrated by the "Learning to run" competition at NIPS 2017. The goal of this competition was to train a two-legged model of a humanoid body to run in a simulated race course with maximum speed. All submissions took a tabula rasa approach to reinforcement learning (RL) and were able to produce relatively fast, but not optimal running behaviour. In this paper, we demonstrate how data from videos of human running (e.g. taken from YouTube) can be used to shape the reward of the humanoid learning agent to speed up the learning and produce a better result. Specifically, we are using the positions of key body parts at regular time intervals to define a potential function for potential-based reward shaping (PBRS). Since PBRS does not change the optimal policy, this approach allows the RL agent to overcome sub-optimalities in the human movements that are shown in the videos. We present experiments in which we combine selected techniques from the top ten approaches from the NIPS competition with further optimizations to create an high-performing agent as a baseline. We then demonstrate how video-based reward shaping improves the performance further, resulting in an RL agent that runs twice as fast as the baseline in 12 hours of training. We furthermore show that our approach can overcome sub-optimal running behaviour in videos, with the learned policy significantly outperforming that of the running agent from the video.
Predicting fashion trends by social media word of mouth: a Twitter analysis
Creators: name: Rudna, Olena
Publisher: name: No Publisher Supplied
Year: 2021

description: This dissertation is comprised of three essays on the impact of social media on trend prediction in the fashion industry. The essays include: 1) an evaluation of the Twitter social media platform for fashion trend detection by using a machine learning approach and text mining techniques, 2) a design for a forecasting algorithm to predict fashion trend dynamics by utilizing big data analysis based on Amazon sales, and 3) methods for enhancing forecasting by using sentiment analysis of Twitter corpora.One of the biggest challenges for fashion apparel companies is accurate demand planning. Conventional apparel consumers rush into obtaining emerging fashion styles. This phenomenon forces many fashion companies to deviate from the classic biannual supply chain cycle and shorten their go-to-market strategy. Consequently, there is no time for brands to learn consumers’ demand by utilizing conventional methods such as pre-sale. Using historical demand data to accurately forecast consumer preferences is especially difficult in the current field of fashion. The classic models based on historical sales have low reliability for sales planning in an era in which fast fashion dominates. Fast fashion intensifies and accelerates several distinguishing characteristics of the fashion business, including demand uncertainty, high stock-out costs, a high risk of obsolescence, short product lifecycles, and long lead time. At the same time, fashion industry consumers are active Web 2.0 users. One of the most popular platforms is Twitter, where people publish personal opinions and discuss experiences related to emerging fashion trends in real time. The first essay in this thesis examines whether trending fashion styles and features, such as colors, cuts, fabric types, etc., may be mined from Twitter fashion corpora. The second essay investigates the value of using data on fashion trends identified on Twitter in order to enhance the predictive power of forecasting models of fashion sales. Amazon apparel sales data were used to evaluate the model. Customer sentiment information may also be mined from Twitter fashion corpora. Sentiment analysis techniques are frequently applied along with natural language processing (NLP) for sales prediction in many industries. The third essay investigates whether using sentiments mined from Tweets as an additional predictor for fashion trends forecasting leads to performance improvement. A sentiment variable is added to forecasting models presented in the second essay and the resulting forecasting error is evaluated.
TECHNOLOGIES USED FOR PLANTING OF SOYBEAN VARIETIES IN BUKHARA REGION
Creators: name: Aminjonova, Charoskhan
Publisher: name: Zenodo
Year: 2024

description: the article describes the technologies used to grow high-quality soybean varieties (Zamin, Zara, Chara, Olmos, Bars, Arisoy, CK Optima Ru2) in our country, their role and importance in human life.
Global MHD simulations of stratified and turbulent protoplanetary discs. I. Model properties
Creators: name: Fromang, Sebastien
name: Nelson, Richard P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of global 3-D MHD simulations of stratified and turbulent protoplanetary disc models. The aim of this work is to develop thin disc models capable of sustaining turbulence for long run times, which can be used for on-going studies of planet formation in turbulent discs. The results are obtained using two codes written in spherical coordinates: GLOBAL and NIRVANA. Both are time--explicit and use finite differences along with the Constrained Transport algorithm to evolve the equations of MHD. In the presence of a weak toroidal magnetic field, a thin protoplanetary disc in hydrostatic equilibrium is destabilised by the magnetorotational instability (MRI). When the resolution is large enough (25 vertical grid cells per scale height), the entire disc settles into a turbulent quasi steady-state after about 300 orbits. Angular momentum is transported outward such that the standard alpha parameter is roughly 4-6*10^{-3}. We find that the initial toroidal flux is expelled from the disc midplane and that the disc behaves essentially as a quasi-zero net flux disc for the remainder of the simulation. As in previous studies, the disc develops a dual structure composed of an MRI--driven turbulent core around its midplane, and a magnetised corona stable to the MRI near its surface. By varying disc parameters and boundary conditions, we show that these basic properties of the models are robust. The high resolution disc models we present in this paper achieve a quasi--steady state and sustain turbulence for hundreds of orbits. As such, they are ideally suited to the study of outstanding problems in planet formation such as disc--planet interactions and dust dynamics.
description: 19 pages, 29 figures, accepted in Astronomy & Astrophysics
Additional file 7 of Dropouts in randomized clinical trials of Korean medicine interventions: a systematic review and meta-analysis
Creators: name: Sae-Rom Jeon
name: Dongwoo Nam
name: Kim, Tae-Hun
Publisher: name: figshare
Year: 2021
Subjects: Medicine
Biotechnology
Science Policy

description: Additional file 7. : Reasons for dropping out in the 12 studies of herbal medicine.
EDX investigation of evaporative losses during the EB melting of SS316
Creators: name: Ritchie, Mark Thomas
Publisher: name: University of British Columbia
Year: 2009

description: Changes in chemical composition due to evaporative losses during the EB (electron beam) melting of SS316 have been studied via x-ray analysis. A technique based on EDX has been developed to acquire, process, and interpret x-ray spectra in the UBC EB melting furnace. The present work consists of a series of experiments which correlate evaporative losses, and liquid surface composition to x-ray spectra for a number of different processing conditions. The parameters studied were beam voltage, beam power, and beam focus for two different mould types each with different fluid flow characteristics. An empirical relationship between measured x-ray intensities and surface composition is presented for the four major alloying elements in SS316( Mo, Cr, Fe, and Ni) and is considered to be accurate within ±1.5 at.%. The liquid surface.composition was found to be equal to the bulk liquid composition at the centreline, and to be depleted in Cr toward the edges. This relationship, however, does not hold for highly focussed, high power beams in the ceramic mould. In addition to the experiments, a numerical model was developed to predict the heat transfer and fluid flow within the molten pool for the experimental conditions. It was found that variations in beam power, and surfactant levels can have a significant effect on the evaporation and mixing characteristics in the pool when the electron beam is highly focussed.
A molecular, morphological, and mycological approach to understanding the evolution of the social cockroaches, termites
Creators: name: Wilson, Megan Mey
Publisher: name: No Publisher Supplied
Year: 2021

description: Termites are classified as eusocial, wood-feeding cockroaches nested within the superorder Dictyoptera, (cockroaches and mantises). Questions regarding the evolution of eusocial termites from a solitary ancestor remain difficult to answer; extinction at the base of the termite tree is high, and increased sampling and studies considering the natural history of lower termites is needed. Our understanding of lower termite biology and sociogenomics cannot progress until we incorporate more comprehensive taxonomic coverage of lower termite genera in phylogenies and disentangle the broad categorizations of early termite natural history data. Without addressing the gaps in our understanding of lower termite biology, we limit our understanding of the evolutionary and ecological processes, such as feeding niche specialization, that shape the evolution of early termites. This dissertation is broken up into three major objectives, with the main goal of exploring the ecology and evolution of lower termites, specifically regarding their (1) natural history and phylogenetic relationships, (2) morphology, and (3) coevolution. The first objective is achieved through the synthesis of natural history reports, dietary classification information, and results from recent phylogenetic analyses to elucidate gaps in our understanding of lower termite biology. The second objective of this work is accomplished using morphometrics, linear transformation analyses, and energy dispersive X-ray spectroscopy to investigate the forms and elemental composition of feeding mouthparts exhibited by worker termites, specifically as they relate to diet. The third objective of this work is to explore and update our current understanding of the evolutionary arms-race between termite hosts and the ectoparasitic fungi that invade their societies. The major results of this dissertation include: a review of lower termite biology, the identification of morphological mandible characters associated with grass, wet-wood, and dry-wood feeding types, and the complete elemental composition of lower termite mandibles from all early-diverging termite genera. Furthermore, we describe a new ectoparasitic species of fungus that forms lesions on its host in an unusual hexad arrangement, synthesize >120 years of reports of ectoparasitic fungi that infest termites, provide color illustrations showing morphological distinctions and development on the termite host, provide an updated chart of the biogeography of these groups, and a phylogenetic summary of ectoparasite lineages and their known hosts.
Quantum noise can enhance algorithmic cooling
Creators: name: Farahmand, Zahra
name: Saem, Reyhaneh Aghaei
name: Raeisi, Sadegh
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Heat-Bath Algorithmic Cooling techniques (HBAC) are techniques that are used to purify a target element in a quantum system. These methods compress and transfer entropy away from the target element into auxiliary elements of the system. The performance of Algorithmic Cooling has been investigated under ideal noiseless conditions. However, realistic implementations are imperfect and for practical purposes, noise should be taken into account. Here we analyze Heat-Bath Algorithmic Cooling techniques under realistic noise models. Surprisingly, we find that noise can in some cases enhance the performance and improve the cooling limit of Heat-Bath Algorithmic Cooling techniques. We numerically simulate the noisy algorithmic cooling for the two optimal strategies, the Partner Pairing, and the Two-sort algorithms. We find that for both of them, in the presence of the generalized amplitude damping noise, the process converges and the asymptotic purity can be higher than the noiseless process. This opens up new avenues for increasing the purity beyond the heat-bath algorithmic cooling.
Multiscale modelling of magnetostatic effects on magnetic nanoparticles with application to hyperthermia
Creators: name: Behbahani, Razyeh
name: Plumer, Martin L.
name: Saika-Voivod, Ivan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We extend a renormalization group-based course-graining method for micromagnetic simulations to include properly scaled magnetostatic interactions. We apply the method in simulations of dynamic hysteresis loops at clinically relevant sweep rates and at 310 K of iron oxide nanoparticles (NPs) of the kind that have been used in preclinical studies of magnetic hyperthermia. The coarse-graining method, along with a time scaling involving sweep rate and Gilbert damping parameter, allow us to span length scales from the unit cell to NPs approximately 50 nm in diameter with reasonable simulation times. For both NPs and the nanorods composing them, we report effective uniaxial anisotropy strengths and saturation magnetizations, which differ from those of the bulk materials magnetite and maghemite of which they are made, on account of the combined non-trivial effects of temperature, inter-rod exchange, magnetostatic interactions and the degree of orientational order within the nanorod composites. The effective parameters allow treating the NPs as single macrospins, and we find for the test case of calculating loops for two aligned NPs that using the dipole approximation is sufficient for distances beyond 1.5 times the NP diameter. We also present a study on relating integration time step to micromagnetic cell size, finding that the optimal time step size scales approximately linearly with cell volume.
description: 13 pages, 9 figures
Modelling of the moving deformed triple contact line: influence of the fluid inertia
Creators: name: Nikolayev, Vadim S.
name: Gavrilyuk, Sergey L.
name: Gouin, Henri
Publisher: name: arXiv
Year: 2008
Subjects: subject: Classical Physics (physics.class-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: For partial wetting, motion of the triple liquid-gas-solid contact line is influenced by heterogeneities of the solid surface. This influence can be strong in the case of inertial (e.g. oscillation) flows where the line can be pinned or move intermittently. A model that takes into account both surface defects and fluid inertia is proposed. The viscous dissipation in the bulk of the fluid is assumed to be negligible as compared to the dissipation in the vicinity of the contact line. The equations of motion and the boundary condition at the contact line are derived from Hamilton's principle. The rapid capillary rise along a vertical inhomogeneous wall is treated as an example.
description: 19 pages and 3 figures
Photocatalytic Activity of Gold and Silver Nanoparticles Synthesized by Using Coffee Flower Extract
Creators: name: Danwanichakul, Panu
Publisher: name: Research Administration Division
Year: 2023
Subjects: Coffee flower
Gold
Green synthesis
Nanoparticles
Photocatalytic activity
Silver

description: Science & Technology Asia, 28, 4, 191-202
"Gemeinde auf Zeit"
Creators: name: Bubmann, Peter
name: Fechtner, Kristian
name: Weyel, Birgit
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 65 Nr. 3 (2016): Ökumenische Rundschau, Band 65, Heft 3
Two-time correlation functions beyond quantum regression theorem: Effect of external noise
Creators: name: Kurt, Arzu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present the results of a study of the two-time correlation functions of a dichotomously driven two-level system in contact with a thermal bath by using corrections beyond the quantum regression theorem. In the strong system-environment coupling regime, it is found that the noise parameters could be tuned to control the magnitude of corrections at low environmental temperatures. The motional averaging and narrowing effect of the external noise was observed on the absorption and emission spectra of the two-state system. Furthermore, effects similar to the destruction of tunneling and noise enhancement of transport are observed in the dynamics of the two-time correlations.
description: 16 pages and 5 figures
Orientation of optically trapped nonspherical birefringent particles
Creators: name: Singer, Wolfgang
name: Nieminen, Timo A.
name: Gibson, Ursula J.
name: Heckenberg, Norman R.
name: Rubinsztein-Dunlop, Halina
Publisher: name: arXiv
Year: 2006
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: While the alignment and rotation of microparticles in optical traps have received increased attention recently, one of the earliest examples has been almost totally neglected the alignment of particles relative to the beam axis, as opposed to about the beam axis. However, since the alignment torques determine how particles align in a trap, they are directly relevant to practical applications. Lysozyme crystals are an ideal model system to study factors determining the orientation of nonspherical birefringent particles in a trap. Both their size and their aspect ratio can be controlled by the growth parameters, and their regular shape makes computational modeling feasible. We show that both external shape and internal birefringence anisotropy contribute to the alignment torque. Three-dimensionally trapped elongated objects either align with their long axis parallel or perpendicular to the beam axis depending on their size. The shape-dependent torque can exceed the torque due to birefringence, and can align negative uniaxial particles with their optic axis parallel to the electric field, allowing an application of optical torque about the beam axis.
description: 5 pages, 5 figures
Sustainable Biocompatible Materials for 3D Printed Fracture Casts: A Comparative FEA Analysis of Mechanical Properties and Environmental Impact
Creators: name: Deshpande, Akash
Publisher: name: Research Administration Division
Year: 2023
Subjects: 3DPrinting
Biomaterials (Polyamide-12, AcrylonitrilebutadienestyreneM30i,Poly-lacticacid)
FiniteElementMethod(FEA)
Fracturecasts

description: Science & Technology Asia, 28, 4, 227-236
The role of accounting and governance for lending decisions
Creators: name: Li, Jiayin
Publisher: name: No Publisher Supplied
Year: 2021

description: This dissertation contains three chapters. The first chapter is an empirical study investigating the impact of accounting quality on the outcome of product market competition through the business cycles. The second chapter examines whether minority board members in banks will give minority borrowers more access to mortgage loans. The last chapter is a theoretical literature review providing a comprehensive theoretical background for the previous two empirical studies.The first empirical study investigates the impact of accounting quality on the outcome of product market competition through the business cycles. The results show that firms with lower earnings quality have worse industry-adjusted sales growth than peers following the onset of recessions. This relationship is stronger for firms that depend more on external financing, those in more competitive industries, and those that produce nondurable goods. In addition, borrowing during recessions declines more for firms with lower earnings than rivals with higher earnings quality. Overall, these results indicate that poor earnings quality is associated with more significant credit constraints during recessions, which leads to reductions in these firms’ rate of industry-adjusted sales growth.The second paper examines whether bank boards with minority directors have different rejection rates for minority borrowers who apply for home mortgages. By using IV and matching methods, this study finds that banks with at least one African American director have lower rejection rates for African American mortgage loan applications by 8.2%. Results also show that having African American board members benefits African American borrowers and benefits loan applications across all ethnic groups. No such effects are found for Hispanic or Asian directors. Furthermore, this study finds no effects on bank risk or performance. This result makes it unlikely that differences in credit risk alone can explain the higher rejection rates for minority borrowers.The last chapter is a review of theoretical studies that relate to the previous two empirical papers. These theories include the predatory pricing theory, how accounting quality affects credit markets, how diversified board composition affects firms’ decisions and the theory of discrimination.
Evidence of a non-conservative mass transfer in the ultra-compact X-ray source XB 1916-053
Creators: name: Iaria, R.
name: Sanna, A.
name: Di Salvo, T.
name: Gambino, A. F.
name: Mazzola, S. M.
name: Riggio, A.
name: Marino, A.
name: Burderi, L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The dipping source XB 1916-053 is a compact binary system with an orbital period of 50 min harboring a neutron star. Using ten new {\it Chandra} observations and one {\it Swift/XRT} observation, we are able to extend the baseline of the orbital ephemeris; this allows us to exclude some models that explain the dip arrival times. The Chandra observations provide a good plasma diagnostic of the ionized absorber and allow us to determine whether it is placed at the outer rim of the accretion disk or closer to the compact object. From the available observations we are able to obtain three new dip arrival times extending the baseline of the orbital ephemeris from 37 to 40 years. From the analysis of the dip arrival times we confirm an orbital period derivative of $\dot{P}=1.46(3) \times 10^{-11}$ s s$^{-1}$. We show that the $\dot{P}$ value and the luminosity values are compatible with a mass accretion rate lower than 10\% of the mass transfer rate. We show that the mass ratio $q=m_2/m_1$ of 0.048 explains the apsidal precession period and the nodal precession period. The observed absorption lines are associated with the presence of \ion{Ne}{x}, \ion{Mg}{xii}, \ion{Si}{xiv}, \ion{S}{xvi,} and \ion{Fe}{xxvi} ions. We observe a redshift in the absorption lines between $1.1 \times 10^{-3}$ and $1.3 \times 10^{-3}$. By interpreting it as gravitational redshift, as recently discussed in the literature, we find that the ionized absorber is placed at a distance of $10^8$ cm from the neutron star with a mass of 1.4 M$_{\odot}$ and has a hydrogen atom density greater than $10^{15}$ cm$^{-3}$. (Abstract abridged)
description: 17 pages, 10 figures, accepted by Astronomy & Astrophysics
Novel Charge Order and Superconductivity in Two-Dimensional Frustrated Lattice at Quarter Filling
Creators: name: Watanabe, Hiroshi
name: Ogata, Masao
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Motivated by the various physical properties observed in $θ$-(BEDT-TTF)$_2$X, we study the ground state of extended Hubbard model on two-dimensional anisotropic triangular lattice at 1/4-filling with variational Monte Carlo method. It is shown that the nearest-neighbor Coulomb interaction enhances the charge fluctuation and it induces the anomalous state such as charge-ordered metallic state and the triplet next-nearest-neighbor $f$-wave superconductivity. We discuss the relation to the real materials and propose the unified view of the family of $θ$-(BEDT-TTF)$_2$X.
description: 4 pages, 5 figures
Investigation of Larvicidal Activity and Histopathological Variations of Brown Algae Spatoglossum asperum J. Agardh against Aedes aegypti, Culex quinquefasciatus, and Anopheles stephensi
Creators: name: Baluchamy Poornasundari
Publisher: name: Research Administration Division
Year: 2023
Subjects: Antibacterial
Histopathological
Larvicidal
Methanol extract
Seaweed

description: Science & Technology Asia, 28, 4, 237-255
Effects of Different Growing Media under Soilless Culture on the Growth and Nutrient Uptake of Oil Palm Seedlings in the Pre-Nursery Stage
Creators: name: Chang, Yu Yang
Publisher: name: Research Administration Division
Year: 2023
Subjects: Agronomy
Nursery management
Oil palm
Soilless culture
Vegetative growth

description: Science & Technology Asia, 28, 4, 256-263
Diaper need as a measure of material hardship among under-resourced families with neurodiverse children
Creators: name: Shaffer, Emma
Publisher: name: No Publisher Supplied
Year: 2021

description: Diaper need is an increasingly important social determinant of health measure for families with young children. Previous research examining associations of diaper need focused on parent outcomes and sampling occurred pre-pandemic. In this study, we examined the associations of diaper need and family outcomes among a sample of under-resourced families with neurodiverse children. Seventy-six percent of the sample of the participants reported some diaper need and 39.5% reported high diaper need. Common mitigation strategies included using a towel or other cloth as a diaper, not using a diaper, and keeping the child in the diaper for longer than usual. Parents reporting food insecurity were 4.24 times more likely to report high diaper need than their food secure peers (OR = 4.24; p = .039). High diaper need was associated with greater parent stress (β = 2.72, p < .001) and parent perception of poor sleep (β = -7.28, p = .01). Any diaper need was associated with shorter, more disrupted child sleep (β = -11.95, p < .001) and lower total child sleep scores (β = -6.49, p = .004). We did not find a significant association between high diaper need and child irritability (p = .053). The associations between diaper need and family outcomes suggest that an inadequate supply of diapers adversely affects parent stress levels and child sleep patterns.
Additional file 8 of Dropouts in randomized clinical trials of Korean medicine interventions: a systematic review and meta-analysis
Creators: name: Sae-Rom Jeon
name: Dongwoo Nam
name: Kim, Tae-Hun
Publisher: name: figshare
Year: 2021
Subjects: Medicine
Biotechnology
Science Policy

description: Additional file 8. : Reasons for dropping out in the three studies of moxibustion.
Vermicompost Contained Fungi Act as Biocontrol Agents Against Fungal Pathogens of Chili
Creators: name: Saowapha Surawut
Publisher: name: Research Administration Division
Year: 2023
Subjects: Anthracnose
Chili
Fungi
Inhibition
Vermicompost

description: Science & Technology Asia, 28, 4, 264-272
Acoustic radiation force and torque on spheroidal particles in an ideal cylindrical chamber
Creators: name: Leao-Neto, Jose P.
name: Hoyos, Mauricio
name: Aider, Jean-Luc
name: Silva, Glauber T.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We theoretically investigate how the acoustic radiation force and torque arise on a small spheroidal particle immersed in a nonviscous fluid inside an ideal cylindrical chamber. The ideal chamber comprises a hard top and bottom (rigid boundary condition), and a soft or hard lateral wall. By assuming the particle is much smaller than the acoustic wavelength, we present analytical expressions of the radiation force and torque caused by an acoustic wave of arbitrary shape. Unlike previous results, these expressions are given relative to a fixed laboratory frame. Our model is showcased for analyzing the behavior of an elongated metallic microspheroid (with a 10 : 1 aspect ratio) in a half-wavelength acoustofluidic chamber with a few millimeters diameter. The results show the radiation torque aligns the microspheroid along the nodal plane, and the radiation force causes a translational motion with a speed of up to one body length per second. At last, we discuss the implications of this study to propelled nanorods by ultrasound.
description: 11 pages, 3 figures
A New Diagnosis of Nonvalvular Atrial Fibrillation in Ischemic Stroke Patients Admitted to Stroke Unit: a Conceptual Replication Study
Creators: name: Tasanee Tantirittisak, Chaiyuth Kotalux
Publisher: name: Research Administration Division
Year: 2023
Subjects: Atrial fibrillation
Continuous ECG monitoring
Ischemic stroke
Stroke unit

description: Science & Technology Asia, 28, 4, 289-294
The curvature of $F_2^p(x,Q^2)$ as a probe of the range of validity of perturbative QCD evolutions in the small-$x$ region
Creators: name: Glück, M.
name: Pisano, C.
name: Reya, E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Perturbative NLO and NNLO QCD evolutions of parton distributions are studied, in particular in the (very) small-$x$ region, where they are in very good agreement with all recent precision measurements of $F_2^p(x,Q^2)$. These predictions turn out to be also rather insensitive to the specific choice of the factorization scheme ($\bar{\rm MS}$ or DIS). A characteristic feature of perturbative QCD evolutions is a {\em{positive}} curvature of $F_2^p$ which increases as $x$ decreases. This perturbatively stable prediction provides a sensitive test of the range of validity of perturbative QCD.
description: 17 pages, 6 figures, 2 tables; minor corrections, to appear in EPJC
Sex-positive Black feminism: a literary tradition, 1967-1988
Creators: name: Extra, Naomi
Publisher: name: No Publisher Supplied
Year: 2021

description: Traditionally, the history of sex-positive feminism has been traced back to white feminists of the late 1970s and 80s such as Susie Bright, Betty Dodson, Ellen Willis, and Gayle Rubin. The discourse on black women that does exist often locates sex-positive expression in the 1990s and the decades after. Sex-Positive Black Feminism: A Literary Tradition explores the long history of sex-positive black feminism through the work of three under explored black feminist writers during the period of 1968-1988—Red Jordan Arobateau, SDiane Bogus, and Ann Allen Shockley. I argue that the work produced by each of these writers has not fit neatly into the black feminist theoretical archive or literary tradition and challenges notions of black literary respectability. To this end, I propose a reading practice that emphasizes effort which, I argue, makes sexual possibility more legible in black feminist literature. This dissertation also seeks to make a critical intervention in the history of pro-sex feminism in the 1970s and 80s and, to a lesser extent, black feminist engagement with black power ideology. While black women did not have a strong organized presence in the pro-sex (also referred to as sex-positive) movement, I argue that we can locate black women’s engagement with the movement in less organized activities and forms of expression such as fiction and poetry. Although there have been critical studies on black female sexual agency and subjectivity in the areas of music, popular culture, and pornography, few have been done on literature. While this project builds on a growing body of scholarship on black women’s sexuality, it seeks to expand the types of sources we turn to when we think about black women and sex. Ultimately, as recovery project this dissertation seeks to amplify a virtually unknown body of literature written by black feminists and also affirm the communities with which it resonated. Through this project, I seek to reframe the ways in which we read black feminist literature and think about black women’s pleasure historically.
Initial Data and Eccentricity Reduction Toolkit for Binary Black Hole Numerical Relativity Waveforms
Creators: name: Habib, Sarah
name: Ramos-Buades, Antoni
name: Huerta, E. A.
name: Husa, Sascha
name: Haas, Roland
name: Etienne, Zachariah
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The production of numerical relativity waveforms that describe quasicircular binary black hole mergers requires high-quality initial data, and an algorithm to iteratively reduce residual eccentricity. To date, these tools remain closed source, or in commercial software that prevents their use in high performance computing platforms. To address these limitations, and to ensure that the broader numerical relativity community has access to these tools, herein we provide all the required elements to produce high-quality numerical relativity simulations in supercomputer platforms, namely: open source parameter files to numerical simulate spinning black hole binaries with asymmetric mass-ratios; open source $\texttt{Python}$ tools to produce high-quality initial data for numerical relativity simulations of spinning black hole binaries on quasi-circular orbits; open source $\texttt{Python}$ tools for eccentricity reduction, both as stand-alone software and deployed in the $\texttt{Einstein Toolkit}$'s software infrastructure. This open source toolkit fills in a critical void in the literature at a time when numerical relativity has an ever increasing role in the study and interpretation of gravitational wave sources. As part of our community building efforts, and to streamline and accelerate the use of these resources, we provide tutorials that describe, step by step, how to obtain and use these open source numerical relativity tools.
description: 11 pages, 1 figure, 1 table. Open source software available at: https://github.com/NCSAGravity/eccred
Additional file 9 of Dropouts in randomized clinical trials of Korean medicine interventions: a systematic review and meta-analysis
Creators: name: Sae-Rom Jeon
name: Dongwoo Nam
name: Kim, Tae-Hun
Publisher: name: figshare
Year: 2021
Subjects: Medicine
Biotechnology
Science Policy

description: Additional file 9. : Reasons for dropping out in the two studies of cupping.