cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Strong solutions of a stochastic differential equation with irregular random drift
Creators: name: Holden, Helge
name: Karlsen, Kenneth H.
name: Pang, Peter H. C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60H10 (Primary), 34F05 (Secondary)

description: We present a well-posedness result for strong solutions of one-dimensional stochastic differential equations (SDEs) of the form $$\mathrm{d} X= u(ω,t,X)\, \mathrm{d} t + \frac12 σ(ω,t,X)σ'(ω,t,X)\,\mathrm{d} t + σ(ω,t,X) \, \mathrm{d}W(t), $$ where the drift coefficient $u$ is random and irregular. The random and regular noise coefficient $σ$ may vanish. The main contribution is a pathwise uniqueness result under the assumptions that $u$ belongs to $L^p(Ω; L^\infty([0,T];\dot{H}^1(\mathbb{R})))$ for any finite $p\ge 1$, $\mathbb{E}\left|u(t)-u(0)\right|_{\dot{H}^1(\mathbb{R})}^2 \to 0$ as $t\downarrow 0$, and $u$ satisfies the one-sided gradient bound $\partial_x u(ω,t,x) \le K(ω, t)$, where the process $K(ω,t )>0$ exhibits an exponential moment bound of the form $\mathbb{E} \exp\Big(p\int_t^T K(s)\,\mathrm{d} s\Big) \lesssim {t^{-2p}}$ for small times $t$, for some $p\ge1$. This study is motivated by ongoing work on the well-posedness of the stochastic Hunter--Saxton equation, a stochastic perturbation of a nonlinear transport equation that arises in the modelling of the director field of a nematic liquid crystal. In this context, the one-sided bound acts as a selection principle for dissipative weak solutions of the stochastic partial differential equation (SPDE).
description: 20 pages
Euzonus Grube 1866
Creators: name: Brewer, Michael S.
name: Sierwald, Petra
name: Bond, Jason E.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Chordeumatida
Opheliidae
Euzonus

description: Genus Euzonus Grube, 1866
 Euzonus Grube, 1866: 43, 64. Type species: Euzonus arcticus, by original designation. Preoccupied by Euzonus Menge, 1854: 14 (Diplopoda, Chordeumatida)
 Thoracophelia Ehlers, 1897: 7, 101. Type species: Thoracophelia furcifera Ehlers, 1897, by original designation; considered a subgenus of Euzonus Grube, 1866 by Hartman (1956: 293).
 Pectinophelia Hartman, 1938: 108. Type species: Pectinophelia dillonensis Hartman, 1938, by original designation. Junior subjective synonym of Euzonus Grube, 1866 according to Hartman (1959: 434).
 Hartman (1938: 103) described the genus Pectinophelia and listed distinguishing characters between the genera Pectinophelia and Thoracophelia. Hartman (1944) considered both genera closely related. The polychaete genus Thoracophelia Ehlers, 1897 was treated as a subgenus of Euzonus Grube, 1866 by Hartman (1956: 293) who cited distinguishing features between members of the subgenera Thoracophelia and ‘ Euzonus sensu stricu. ’ Later, Hartman (1959: 434) synonymized Pectinophelia under ‘ Euzonus.’ In subsequent publications, the subgeneric structure of Euzonus Grube, 1866 was mostly maintained (e.g. Hartman 1966: 51, 1967: 137 and Rozbaczylo & Zamorano 1970) but not always (e.g. Blake 2000; Misaka & Sato 2003; and Hartmann-Schröder 1971: 383 who placed the genera Euzonus and Ophelia Savigny, 1818 in the then new subfamily Opheliinae without any reference to the subgenus Thoracophelia). In a subsequent publication, Hartmann-Schröder & Parker (1995: 2) refer to the subgenus again.
 Currently, 15 species are placed in Euzonus Grube, 1866 (Fauchald & Bellan 2009):
 Subgenus Euzonus (Euzonus)
 Euzonus (Euzonus) dillonensis (Hartman, 1938) Subgenus Euzonus (Thoracophelia)
 Euzonus (Thoracophelia) furcifera (Ehlers, 1897) Euzonus (Thoracophelia) heterocirrus Rozbaczylo & Zamorano, 1970 Euzonus (Thoracophelia) mucronata (Treadwell, 1914) Euzonus (Thoracophelia) profundus Hartman, 1967 Euzonus (Thoracophelia) williamsi (Hartman, 1938) Euzonus arcticus Grube, 1866
 Euzonus ezoensis (Okuda, 1936)
 Euzonus flabelligerus (Ziegelmeier, 1955)
 Euzonus japonicus Misaka & Sato, 2003
 Euzonus mammillatus Santos, Nonato & Petersen, 2004 Euzonus otagoensis Probert, 1976
 Euzonus papillatus Santos, Nonato & Petersen, 2004 Euzonus zeidleri Hartmann-Schröder & Parker, 1995
description: Published as part of Brewer, Michael S., Sierwald, Petra & Bond, Jason E., 2011, A generic homonym concerning chordeumatid millipedes (Arthropoda: Diplopoda) and ophellid worms (Annelida: Polycheata), pp. 65-68 in Zootaxa 2744 on pages 66-67, DOI: 10.5281/zenodo.206684
A Survey on Explainable Artificial Intelligence for Cybersecurity
Creators: name: Rjoub, Gaith
name: Bentahar, Jamal
name: Wahab, Omar Abdel
name: Mizouni, Rabeb
name: Song, Alyssa
name: Cohen, Robin
name: Otrok, Hadi
name: Mourad, Azzam
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cryptography and Security (cs.CR)
subject: Artificial Intelligence (cs.AI)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: The black-box nature of artificial intelligence (AI) models has been the source of many concerns in their use for critical applications. Explainable Artificial Intelligence (XAI) is a rapidly growing research field that aims to create machine learning models that can provide clear and interpretable explanations for their decisions and actions. In the field of network cybersecurity, XAI has the potential to revolutionize the way we approach network security by enabling us to better understand the behavior of cyber threats and to design more effective defenses. In this survey, we review the state of the art in XAI for cybersecurity in network systems and explore the various approaches that have been proposed to address this important problem. The review follows a systematic classification of network-driven cybersecurity threats and issues. We discuss the challenges and limitations of current XAI methods in the context of cybersecurity and outline promising directions for future research.
Factoring 51 and 85 with 8 qubits
Creators: name: Geller, Michael R.
name: Zhou, Zhongyuan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We construct simplified quantum circuits for Shor's order-finding algorithm for composites N given by products of the Fermat primes 3, 5, 17, 257, and 65537. Such composites, including the previously studied case of 15, as well as 51, 85, 771, 1285, 4369,... have the simplifying property that the order of a modulo N for every base a coprime to N is a power of 2, significantly reducing the usual phase estimation precision requirement. Prime factorization of 51 and 85 can be demonstrated with only 8 qubits and a modular exponentiation circuit consisting of no more than four CNOT gates.
Basic vocabulary
Creators: name: Saiku, Tadao
name: Davis, Chris
name: Lau-Preechathammarach, Raksit Tyler
name: Nakagawa, Natsuko
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2024
Subjects: Shika-muni language

description: 2 WAV files, 1 TXT file. Maezato is generally not considered one of the four villages (aza 字) that make up Shika.
Adversarial Robustness and Feature Impact Analysis for Driver Drowsiness Detection
Creators: name: Vitorino, João
name: Rodrigues, Lourenço
name: Maia, Eva
name: Praça, Isabel
name: Lourenço, André
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Drowsy driving is a major cause of road accidents, but drivers are dismissive of the impact that fatigue can have on their reaction times. To detect drowsiness before any impairment occurs, a promising strategy is using Machine Learning (ML) to monitor Heart Rate Variability (HRV) signals. This work presents multiple experiments with different HRV time windows and ML models, a feature impact analysis using Shapley Additive Explanations (SHAP), and an adversarial robustness analysis to assess their reliability when processing faulty input data and perturbed HRV signals. The most reliable model was Extreme Gradient Boosting (XGB) and the optimal time window had between 120 and 150 seconds. Furthermore, SHAP enabled the selection of the 18 most impactful features and the training of new smaller models that achieved a performance as good as the initial ones. Despite the susceptibility of all models to adversarial attacks, adversarial training enabled them to preserve significantly higher results, especially XGB. Therefore, ML models can significantly benefit from realistic adversarial training to provide a more robust driver drowsiness detection.
description: 10 pages, 2 tables, 3 figures, AIME 2023 conference
Orbitally Selective Resonant Photodoping to Enhance Superconductivity
Creators: name: Tang, Ta
name: Wang, Yao
name: Moritz, Brian
name: Devereaux, Thomas P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Signatures of superconductivity at elevated temperatures above $T_c$ in high temperature superconductors have been observed near 1/8 hole doping for photoexcitation with infrared or optical light polarized either in the CuO$_2$-plane or along the $c$-axis. While the use of in-plane polarization has been effective for incident energies aligned to specific phonons, $c$-axis laser excitation in a broad range between 5 $μ$m and 400 nm was found to affect the superconducting dynamics in striped La$_{1.885}$Ba$_{0.115}$CuO$_4$, with a maximum enhancement in the $1/ω$ dependence to the conductivity observed at 800 nm. This broad energy range, and specifically 800 nm, is not resonant with any phonon modes, yet induced electronic excitations appear to be connected to superconductivity at energy scales well above the typical gap energies in the cuprates. A critical question is what can be responsible for such an effect at 800 nm? Using time-dependent exact diagonalization, we demonstrate that the holes in the CuO$_2$ plane can be photoexcited into the charge reservoir layers at resonant wavelengths within a multi-band Hubbard model. This orbitally selective photoinduced charge transfer effectively changes the in-plane doping level, which can lead to an enhancement of $T_c$ near the 1/8 anomaly.
description: 8 pages, 4 figures
Cell fusion through slime mold network dynamics
Creators: name: Hsu, Sheryl
name: Schaposnik, Laura P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Optimization and Control (math.OC)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Physarum Polycephalum is a unicellular slime mold that has been intensely studied due to its ability to solve mazes, find shortest paths, generate Steiner trees, share knowledge, remember past events, and its applications to unconventional computing. The CELL model is a unicellular automaton introduced in the recent work of Gunji et al. in 2008, that models Physarum's amoeboid motion, tentacle formation, maze solving, and network creation. In the present paper, we extend the CELL model by spawning multiple CELLs, allowing us to understand the interactions between multiple cells, and in particular, their mobility, merge speed, and cytoplasm mixing. We conclude the paper with some notes about applications of our work to modeling the rise of present day civilization from the early nomadic humans and the spread of trends and information around the world. Our study of the interactions of this unicellular organism should further the understanding of how Physarum Polycephalum communicates and shares information.
description: 12 pages, 27 figures
Random discussion and vocabulary
Creators: name: Saiku, Tadao
name: Davis, Chris
name: Lau-Preechathammarach, Raksit Tyler
name: Nakagawa, Natsuko
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2024
Subjects: Shika-muni language

description: 2 WAV files. Maezato is generally not considered one of the four villages (aza 字) that make up Shika. Corresponding written notes missing.
Representations attached to elliptic curves with a non-trivial odd torsion point
Creators: name: Barrios, Alexander J.
name: Roy, Manami
Publisher: name: arXiv
Year: 2021
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11G05, 11G07, 11F70

description: We give a classification of the cuspidal automorphic representations attached to rational elliptic curves with a non-trivial torsion point of odd order. Such elliptic curves are parameterizable, and in this paper, we find the necessary and sufficient conditions on the parameters to determine when split or non-split multiplicative reduction occurs. Using this and the known results on when additive reduction occurs for these parametrized curves, we classify the automorphic representations in terms of the parameters.
description: 17 pages; incorporates referee's suggestions; a small correction to the statement of Theorem 3.3; final version to appear in Bulletin of the London Mathematical Society
Nematics, Knots and Non-orientable Surfaces
Creators: name: Machon, Thomas
name: Alexander, Gareth P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Knots and knotted fields enrich physical phenomena ranging from DNA and molecular chemistry to the vortices of fluid flows and textures of ordered media. Liquid crystals provide an ideal setting for exploring such topological phenomena through control of their characteristic defects. The use of colloids in generating defects and knotted configurations in liquid crystals has been demonstrated for spherical and toroidal particles and shows promise for the development of novel photonic devices. Extending this existing work, we describe the full topological implications of colloids representing non-orientable surfaces and use it to construct torus knots and links of type ($p$,2) around multiply-twisted Möbius strips.
description: 6 pages, 5 figures
SUPERSYMMETRIC OBJECTS IN GAUGED SUPERGRAVITIES
Creators: name: PETRI, NICOLO'
Publisher: name: Universit� degli Studi di Milano
Year: 2018

description: The formulation of a unified description of fundamental interactions has always been the most relevant and intriguing challenge in physics. To this end, a microscopic description of gravity and its consequent unification to electromagnetic and nuclear forces is needed. A theory realizing such a framework would be called theory of quantum gravity and, so far, the only consistent setup which seeks to realize this purpose is given by string theory. In this context, the divergences appearing in classical gravity theory are resolved at high energies in terms of contributions coming from the physics of extra dimensions. From this point of view, in order to gain the stability of higher-dimensional objects, like strings and branes, the formulation of quantum theories of gravity requires supersymmetry. These fundamental extended objects give rise, at low energies, to supersymmetric systems that are strongly coupled to gravity like, for example, black holes. The theories describing the low-energy regime of objects living at higher dimensions are called supergravity theories and constitute the general setup of this thesis. These are classical interacting theories of gravity characterized by local supersymmetry. In this context, the description of supersymmetric objects is realized by classical solutions of the equations of motion and the link with high energies is controlled by the AdS/CFT correspondence and by string compactifications. Starting from this general framework, in this thesis the results published during the three years of doctoral studies are presented. Three particular supergravity realizations in four- five- and seven dimensions are considered and discussed in relation to the physics of the supersymmetric objects arising from them. The analysis of the results in terms of the underlying microscopic theories is also developed with particular emphasis on string compactifications, giving rise to the three supergravities considered, and on the holographic interpretation, explaining the origin of the supersymmetric solutions presented in terms of non-perturbative states of string theory.
Suppression of Bremsstrahlung losses from relativistic plasma with energy cutoff
Creators: name: Munirov, Vadim R.
name: Fisch, Nathaniel J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We study the effects of redistributing superthermal electrons on Bremsstrahlung radiation from hot relativistic plasma. We consider thermal and nonthermal distribution of electrons with an energy cutoff in the phase space and explore the impact of the energy cutoff on Bremsstrahlung losses. We discover that the redistribution of the superthermal electrons into lower energies reduces radiative losses, which is in contrast to nonrelativistic plasma. Finally, we discuss the possible relevance of our results for open magnetic field line configurations and prospects of the aneutronic fusion based on proton-Boron11 (p-B11) fuel.
Comparative study of continuous flow catalytic systems for the transformation of CO2 into propylene carbonate
Creators: name: Gaytan-Ramos, Juan C.
name: Meneses-Ruiz, Edith
name: Aguilar-Barrera, Cándido
name: Terres-Rojas, Eduardo
name: Muñoz-Arroyo, José Antonio
name: Velázquez, Heriberto Díaz
name: García-González, Juan M.
name: Guzmán-Pantoja, Javier
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: This work presents a comparative study of two continuous flow reaction systems for the synthesis of propylene carbonate (PC) from CO2 and propylene oxide (PO). The reaction systems in continuous flow consist of a flow tubular reactor and a Robinson-Mahoney (RM) isothermal packed bed reactor in homogeneous regime. The formulation of the synthesized catalyst had KI as the active phase on a support of aluminum oxy-hydroxide, activated carbon, sodium dihydrogen sulfate, nitric acid and poly (vinyl alcohol); the mixture of materials was spheronized to improve its mechanical and workability properties. The results revealed that the reaction followed a catalyst deactivation pattern, since the yield under heterogeneous regime dropped for both reaction systems after the first 4 h of operation; however, the overall performance of the RM reactor, determined by Total Dynamic Performance (TDP) measurements, turned out to be 5 times higher than that of the tubular reactor. The RM reactor was then used in a mixed heterogeneous/homogeneous operation, thus keeping a sustained yield and selectivity of about 90 and 84%, respectively, for the total evaluation time (50 h) after adjusting to homogeneous regime. The mixed operation proposal using the RM reactor ensured the correct distribution of reagents and catalyst, along with the additional benefits of using a three-phase reactor system. In addition, the continuous flow operation allowed to maintain high performance and selectivity rates, enabling to continue the next stages of the scaling-up process.
Impacts of the Great Earthquake and COVID-19 pandemic on the socio-economy of the Kita-Tōhoku region (Northern Japan) estimated by nightlight image and statistical analyses
Creators: name: Kondo, Yasuhisa
name: Suetsugu, Satoko
name: Osawa, Takeshi
name: Machicao, Jeaneth
name: Ferreira Vellenich, Danton
name: Ben Abbes, Ali
name: Corrêa, Pedro Luiz Pizzigatti
Publisher: name: Zenodo
Year: 2022
Subjects: PARSEC
satellite image analysis
socioeconomic indicators
Japan

description: Kita-Tōhoku (北東北) region of Northern Japan experiences depopulation and aging communities. This region holds a rich potential in ecological and cultural resources, although it experienced sharp declines in the number of tourists in 2011 after the Great East Japan Earthquake and tsunami and in 2020 during the COVID-19 pandemic. Our pilot study validated that nightlight-based wealth index was well correlated with socio-economic indicators in East Africa and Brazil. We apply a similar method to estimate the socio-economic impacts of the Great Earthquake and pandemic in 15 sampled municipalities in Aomori (青森), Iwate (岩手), and Akita (秋田) prefectures.
Dynamic Compression of in situ Grown Living Polymer Brush: Simulation and Experiment
Creators: name: Jalili, K.
name: Abbasi, F.
name: Milchev, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: A comparative dynamic Monte Carlo simulation study of polydisperse living polymer brushes, created by surface initiated living polymerization, and conventional polymer monodisperse brush, comprising linear polymer chains, grafted to a planar substrate under good solvent conditions, is presented. The living brush is created by end-monomer (de)polymerization reaction after placing an array of initiators on a grafting plane in contact with a solution of initially non-bonded segments (monomers). At equilibrium, the monomer density profile ϕ(z) of the LPB is found to decline as ϕ(z) ~ z^{-α} with the distance from the grafting plane z, while the distribution of chain lengths in the brush scales as c(N) ~ N^{-τ}. The measured values α= 0.64 and τ= 1.70 are very close to those, predicted within the framework of the Diffusion-Limited Aggregation theory, α= 2/3 and τ= 7/4. At varying mean degree of polymerization (from L = 28 to L = 170) and effective grafting density (from σ_g = 0.0625 to σ_g = 1.0), we observe a nearly perfect agreement in the force-distance behavior of the simulated LPB with own experimental data obtained from colloidal probe AFM analysis on PNIPAAm brush and with data obtained by Plunkett et. al., [Langmuir 2006, 22, 4259] from SFA measurements on same polymer.
Discovery of twin kHz quasi periodic oscillations in the low mass X-ray binary XTE J1701-407
Creators: name: Pawar, Devraj D.
name: Kalamkar, Maithili
name: Altamirano, Diego
name: Linares, Manuel
name: Shanthi, K.
name: Strohmayer, Tod
name: Bhattacharya, Dipankar
name: van der Klis, Michiel
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report the discovery of kHz quasi periodic oscillations (QPOs) in three Rossi X-ray Timing Explorer observations of the low mass X-ray binary (LMXB) XTE J1701-407. In one of the observations we detect a kHz QPO with a characteristic frequency of 1153 +/- 5 Hz, while in the other two observations we detect twin QPOs at characteristic frequencies of 740 +/- 5 Hz, 1112 +/- 17 Hz and 740 +/- 11 Hz, 1098 +/- 5 Hz. All detections happen when XTE J1701-407 was in its high intensity soft state, and their single trial significance are in the 3.1-7.5 sigma range. The frequency difference in the centroid frequencies of the twin kHz QPOs (385 +/- 13 Hz) is one of the largest seen till date. The 3-30 keV fractional rms amplitude of the upper kHz QPO varies between ~18 % and ~30 %. XTE J1701-407, with a persistent luminosity close to 1 % of the Eddington limit, is among the small group of low luminosity kHz QPO sources and has the highest rms for the upper kHz QPO detected in any source. The X-ray spectral and variability characteristics of this source indicate its atoll source nature.
description: 10 pages, 9 figures, accepted for publication in MNRAS
Incremental Verification of Neural Networks
Creators: name: Ugare, Shubham
name: Banerjee, Debangshu
name: Misailovic, Sasa
name: Singh, Gagandeep
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Programming Languages (cs.PL)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Complete verification of deep neural networks (DNNs) can exactly determine whether the DNN satisfies a desired trustworthy property (e.g., robustness, fairness) on an infinite set of inputs or not. Despite the tremendous progress to improve the scalability of complete verifiers over the years on individual DNNs, they are inherently inefficient when a deployed DNN is updated to improve its inference speed or accuracy. The inefficiency is because the expensive verifier needs to be run from scratch on the updated DNN. To improve efficiency, we propose a new, general framework for incremental and complete DNN verification based on the design of novel theory, data structure, and algorithms. Our contributions implemented in a tool named IVAN yield an overall geometric mean speedup of 2.4x for verifying challenging MNIST and CIFAR10 classifiers and a geometric mean speedup of 3.8x for the ACAS-XU classifiers over the state-of-the-art baselines.
description: PLDI 2023
Black branes dual to striped phases
Creators: name: Withers, Benjamin
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We construct inhomogeneous charged black branes in AdS, holographically dual to a phase at finite chemical potential with spontaneously broken translation invariance in one direction. These are obtained numerically, solving PDEs for the fully backreacted system. Fixing the periodicity scale, we find a second order phase transition to the inhomogeneous phase. We comment on the properties of the state emerging at low temperatures. For some models we demonstrate the existence of a branch of striped solutions but no continuous phase transition.
description: 16 pages, 9 figures
Modified zeolite from metakaolin and fly ash as efficient adsorbent for cationic methylene blue dye removal
Creators: name: Setthaya, Naruemon
name: Pimraksa, Kedsarin
name: Damrongwiriyanupap, Nattapong
name: Panias, Dimitrios
name: Mekrattanachai, Pagasukon
name: Chindawong, Chakkresit
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Marine Biology

description: Effective textile dye removal from aquatic wastewater is essential, as this effluent is harmful to human health, biodiversity, and natural environments. This study investigates the synthesis of zeolitic materials for dye removal from wastewater using metakaolin and fly ash as starting materials. In the first synthesis step, the starting materials are blended at various metakaolin-to-fly ash ratios and treated with a 3 M sodium hydroxide solution under stirring. The solid-to-liquid ratio of the precursor gel is 1:8 (w/v). The suspensions are then subjected to hydrothermal treatment at 120 °C for 6 h. In the second step, an impregnation method is used to obtain titanium dioxide (TiO2)-containing zeolite, and the effect of the TiO2 content on the zeolite adsorption performance is investigated. The synthesized products are characterized using X-ray diffraction, scanning electron microscopy, particle size analysis, surface area measurement, and ultraviolet-visible spectrophotometry. From the results, a metakaolin-to-fly ash weight ratio of 4:1 is optimal and yields sodalite and zeolite A. For 20-ppm methylene blue solution, the adsorption efficiencies of freshly synthesized zeolite and TiO2-containing zeolite are found to be 87.63% and 99.87%, respectively. In addition, the adsorption performance of the reused product is similar to that of the freshly synthesized product. Thus, the synthesized modified zeolite is an efficient adsorbent for methylene blue removal. Blending of metakaolin (MK) and fly ash (FA) as a starting material for preparing microporous materials. TiO2/zeolite composites were simply prepared for methylene blue (MB) removal. TiO2/zeolite composites can improve photocatalytic degradation of MB. TiO2/zeolite composites had a better MB removal efficiency than zeolite. The degradation rate of MB dye by TiO2/zeolite composites reached 99.87%.
TransSC: Transformer-based Shape Completion for Grasp Evaluation
Creators: name: Chen, Wenkai
name: Liang, Hongzhuo
name: Chen, Zhaopeng
name: Sun, Fuchun
name: Zhang, Jianwei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Currently, robotic grasping methods based on sparse partial point clouds have attained a great grasping performance on various objects while they often generate wrong grasping candidates due to the lack of geometric information on the object. In this work, we propose a novel and robust shape completion model (TransSC). This model has a transformer-based encoder to explore more point-wise features and a manifold-based decoder to exploit more object details using a partial point cloud as input. Quantitative experiments verify the effectiveness of the proposed shape completion network and demonstrate it outperforms existing methods. Besides, TransSC is integrated into a grasp evaluation network to generate a set of grasp candidates. The simulation experiment shows that TransSC improves the grasping generation result compared to the existing shape completion baselines. Furthermore, our robotic experiment shows that with TransSC the robot is more successful in grasping objects that are randomly placed on a support surface.
title: C. K. Brain (ed.): Swartkrans. A cave's chronicle of early man. Transvaal Museum Monograph No. 8. Pretoria 1993
Creators: name: Wenzel, Stefan
Publisher: name: University Library Heidelberg
Year: 2014

description: Rezension zu: C. K. Brain (ed.): Swartkrans. A Cave's Chronicle of Early Man.
Transvaal Museum Monograph No. 8. Pretoria (Transvaal Museum) 1993. ISBN 0 907990 14 2, ISSN 0255-0172. xii + 270 S., zahlreiche Abb. u. Tab., Leinen mit Schutzumschlag
Very deep spectroscopy of the bright Saturn Nebula NGC 7009 - II. Analysis of the rich optical recombination spectrum
Creators: name: Fang, Xuan
name: Liu, Xiao-Wei
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: [Abridged] We present a critical analysis of the rich optical recombination spectrum of NGC 7009, in the context of the bi-abundance nebular model proposed by Liu et al. (2000). The observed relative intensities are compared with the theoretical predictions based on high quality effective recombination coefficients, now available for the recombination line spectrum of a number of heavy element ions. The possibility of plasma diagnostics using the optical recombination lines (ORLs) of heavy element ions is discussed in detail. Plasma diagnostics based on the N II and O II recombination spectra both yield electron temperatures close to 1000 K, which is lower than those derived from the collisionally excited line (CEL) ratios by nearly one order of magnitude. The very low temperatures yielded by the O II and N II ORLs indicate that they originate from very cold regions. The C^{2+}/H^+, N^{2+}/H^+, O^{2+}/H^+ and Ne^{2+}/H^+ ionic abundance ratios derived from ORLs are consistently higher, by about a factor of 5, than the corresponding values derived from CELs. In calculating the ORL ionic abundance ratios, we have used the newly available high quality effective recombination coefficients, and adopted an electron temperature of 1000 K, as given by the ORL diagnostics and as a consequence presumably representing the physical conditions prevailing in the regions where the heavy element ORLs arise. A comparison of the results of plasma diagnostics and abundance determinations for NGC 7009 points to the existence of "cold", metal-rich (i.e. H-deficient) inclusions embedded in the hot, diffuse ionized gas, first postulated by Liu et al. (2000).
description: Accepted for publication in MNRAS (50 pages of main text; 13 pages of appendix; in total 55 figures and 28 tables)
Basic vocabulary and sentences
Creators: name: Sakiyama, Ritsuko
name: Lau-Preechathammarach, Raksit Tyler
name: Tamashiro, Junko
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2024
Subjects: Shika-muni language

description: 2 WAV files, 1 EAF file, 1 TXT file. Participant is a speaker of Itoman Okinawan, but not of Yaeyaman.
Catalog of Planetary Nebulae detected by GALEX and corollary optical surveys
Creators: name: Gómez-Muñoz, M. A.
name: Bianchi, L.
name: Manchado, A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Planetary nebulae (PNe) consist of an ionized envelope surrounding a hot central star (CSPN) that emits mostly at ultraviolet (UV) wavelengths. Ultraviolet observations, therefore, provide important information on both the CSPN and the nebula. We have matched the PNe in The Hong Kong/AAO/Strasbourg H$α$ (HASH) catalog with the Galaxy Evolution Explorer (GALEX) UV sky surveys, the Sloan Digital Sky Survey data release 16 (SDSS), and the Panoramic Survey Telescope and Rapid Response System (Pan-STARRS) PS1 second release. A total of 671 PNe were observed by GALEX with the far-UV (FUV; 1344-1786Å) and/or the near-UV (NUV; 1771-2831Å) detector on (GUVPNcat); 83 were observed by SDSS (PNcatxSDSSDR16) and 1819 by Pan-STARRS (PNcatxPS1MDS). We merged a distilled version of these matched catalogs into GUVPNcatxSDSSDR16xPS1MDS, which contains a total of 375 PNe with both UV and optical photometry over a total spectral coverage of $\sim$1540--9610Å. We analysed separately 170 PNe resolved in GALEX images and determined their UV radius by applying a flux profile analysis. The CSPN flux could be extracted separately from the PN emission for 8 and 50 objects with SDSS and Pan-STARRS counterparts respectively. The multi-band photometry was used to distinguish between compact and extended PNe and CSPNe (binary CSPNe) by color--color diagram analysis. We found that compact PNe candidates could be identified by using the $r-i < -0.4$ and $-$1$<$FUV$-$NUV$<$1 colors, whereas binary CSPNe candidates in given $T_\mathrm{eff}$ ranges (all with color r$-$i$>-$0.4) can be identified in the color region (FUV$-$NUV)$\leq$6(r$-$i)+1.3, $-$0.8$<$FUV$-$NUV$<$0.4 and r$-$i$<$0.75.
description: Accepted for publication in ApJS. 26 pages, 8 figures
Estimation of socioeconomic indicators through satellite imagery in the NEXUS area
Creators: name: Coelho, Rafael Araújo
name: Giuzio, Carlos Massao Oishi
name: Zoeller, Igor Varela
name: Machicao, Jeaneth
name: De Andrade Neto, Pedro Ribeiro
name: Corrêa, Pedro Luiz Pizzigatti
Publisher: name: Zenodo
Year: 2022
Subjects: deep learning
remote sensing imagery
Nexus area
data science

description: Undegraduate poster related to PARSEC project presented at the 30º SIICUSP (2022). Video presentation on Youtube
description: Acknowledgments: The PARSEC project is funded by the Belmont Forum, Collaborative Research Action on Science-Driven e-Infrastructures Innovation. acknowledgements: JM to FAPESP process (20/03514-9), PR to NEXUS FAPESP process (17/22269-2) and PC to PARSEC FAPESP process (18/24017-3).
Tight Secure Key Rates for CV-QKD with 8PSK Modulation
Creators: name: Kanitschar, Florian
name: Pacher, Christoph
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We use a recent numerical security proof approach to calculate tight secure key rates in the presence of collective attacks for a continuous-variable (CV) eight-state phase-shift keying (8PSK) protocol with heterodyne detection in the asymptotic limit. The results are compared to achievable secure key rates of a QPSK protocol obtained with the same security proof technique. Furthermore, we investigate the influence of radial postselection on the secure key rate and examine a recently suggested strategy to reduce the computational requirements on the error-correction phase for four-state phase-shift-keying protocols. Based on our investigations, we suggest different strategies to reduce the raw key of 8PSK protocols significantly, only on the cost of a slightly lower secure key rate. This can be used to lower the computational effort of the error-correction phase, a known bottleneck in many practical implementations, considerably.
description: 12 pages, 8 figures, 2 tables; V2: typos corrected. arXiv admin note: text overlap with arXiv:2104.09454
On the likely dominance of WIMP annihilation to fermion pair+W/Z (and implication for indirect detection)
Creators: name: Weiler, Thomas J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Arguably, the most popular candidate for Dark Matter (DM) is a massive, stable, Majorana fermion. However, annihilation of Majorana DM to two fermions often features a helicity-suppressed s-wave rate. Radiating a gauge boson via electroweak (EW) and electromagnetic (EM) bremsstrahlung removes this s-wave suppression. The main purpose of this talk is to explain in some detail why the branching ratio to a fermion pair is likely suppressed while the decay to the pair plus a W/Z is not. In doing so, we investigate the general conditions for s-wave suppression and un-suppression using Fierz transformations and partial wave expansions. Suppression for the 2-to-2 process is sufficiently severe that the EW and EM bremsstrahlung are likely to be the dominant modes of gauge-singlet Majorana DM annihilation. We end this talk with a discussion of the challenge presented by space-based data for Majorana DM models, given that the enhanced rate to radiated W and Z gauge bosons and their dominant decay via hadronic channels tends to produce more anti-protons than are observed.
description: 22 pages, including five sets of figures and two tables; expands upon talk presented at the CETUP* Dark Matter Workshop, Lead, South Dakota, July 2012
Extracting quantum-geometric effects from Ginzburg-Landau theory in a multiband Hubbard model
Creators: name: Iskin, M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We first apply functional-integral approach to a multiband Hubbard model near the critical pairing temperature, and derive a generic effective action that is quartic in the fluctuations of the pairing order parameter. Then we consider time-reversal-symmetric systems with uniform (i.e., at both low-momentum and low-frequency) pairing fluctuations in a unit cell, and derive the corresponding time-dependent Ginzburg-Landau (TDGL) equation. In addition to the conventional intraband contribution that depends on the derivatives of the Bloch bands, we show that the kinetic coefficients of the TDGL equation have a geometric contribution that is controlled by both the quantum-metric tensor of the underlying Bloch states and their band-resolved quantum-metric tensors. Furthermore we show that thermodynamic properties such as London penetration depth, GL coherence length, GL parameter and upper critical magnetic field have an explicit dependence on quantum geometry.
description: 8 pages with 1 figure; to appear in PRB
Supplementary Figure S1 from Foraging mode constrains the evolution of cephalic horns in lizards and snakes
Creators: name: Banfi, Federico
name: Meiri, Shai
name: Shine, Richard
name: Damme, Raoul Van
name: Baeckens, Simon
Publisher: name: The Royal Society
Year: 2023
Subjects: classificationCode: 310399
subject: Ecology not elsewhere classified
classificationCode: 310499
subject: Evolutionary biology not elsewhere classified

description: Vectorial image of Figure S1, showing the character state reconstruction results of both foraging mode and horn traits. Figure caption and legends are included in the .pdf file.
Modified zeolite from metakaolin and fly ash as efficient adsorbent for cationic methylene blue dye removal
Creators: name: Setthaya, Naruemon
name: Pimraksa, Kedsarin
name: Damrongwiriyanupap, Nattapong
name: Panias, Dimitrios
name: Mekrattanachai, Pagasukon
name: Chindawong, Chakkresit
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Marine Biology

description: Effective textile dye removal from aquatic wastewater is essential, as this effluent is harmful to human health, biodiversity, and natural environments. This study investigates the synthesis of zeolitic materials for dye removal from wastewater using metakaolin and fly ash as starting materials. In the first synthesis step, the starting materials are blended at various metakaolin-to-fly ash ratios and treated with a 3 M sodium hydroxide solution under stirring. The solid-to-liquid ratio of the precursor gel is 1:8 (w/v). The suspensions are then subjected to hydrothermal treatment at 120 °C for 6 h. In the second step, an impregnation method is used to obtain titanium dioxide (TiO2)-containing zeolite, and the effect of the TiO2 content on the zeolite adsorption performance is investigated. The synthesized products are characterized using X-ray diffraction, scanning electron microscopy, particle size analysis, surface area measurement, and ultraviolet-visible spectrophotometry. From the results, a metakaolin-to-fly ash weight ratio of 4:1 is optimal and yields sodalite and zeolite A. For 20-ppm methylene blue solution, the adsorption efficiencies of freshly synthesized zeolite and TiO2-containing zeolite are found to be 87.63% and 99.87%, respectively. In addition, the adsorption performance of the reused product is similar to that of the freshly synthesized product. Thus, the synthesized modified zeolite is an efficient adsorbent for methylene blue removal. Research highlightsBlending of metakaolin (MK) and fly ash (FA) as a starting material for preparing microporous materials.TiO2/zeolite composites were simply prepared for methylene blue (MB) removal.TiO2/zeolite composites can improve photocatalytic degradation of MB.TiO2/zeolite composites had a better MB removal efficiency than zeolite.The degradation rate of MB dye by TiO2/zeolite composites reached 99.87%. Blending of metakaolin (MK) and fly ash (FA) as a starting material for preparing microporous materials. TiO2/zeolite composites were simply prepared for methylene blue (MB) removal. TiO2/zeolite composites can improve photocatalytic degradation of MB. TiO2/zeolite composites had a better MB removal efficiency than zeolite. The degradation rate of MB dye by TiO2/zeolite composites reached 99.87%.
Collision Kernels from Velocity-Selective Optical Pumping with Magnetic Depolarization
Creators: name: Bhamre, T.
name: Marsland, R.
name: Kominis, I. K.
name: McGuyer, B. H.
name: Happer, W.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We experimentally demonstrate how magnetic depolarization of velocity-selective optical pumping can be used to single out the collisional cusp kernel best describing spin and velocity relaxing collisions between potassium atoms and low pressure helium. The range of pressures and transverse fields used simulate the novel optical pumping regime pertinent to sodium guidestars employed in adaptive optics. We measure the precession of spin-velocity modes under the application of transverse magnetic fields, simulating the natural configuration of mesospheric sodium optical pumping in the geomagnetic field. We also provide a full theoretical account of the experimental data using the recently developed cusp kernels, which realistically quantify velocity damping collisions in this novel optical pumping regime. A single cusp kernel with a sharpness $s=13\pm 2$ provides a global fit to the K-He data.
description: 5 pages, 3 figures
Shopping vocabulary
Creators: name: Sakiyama, Ritsuko
name: Lau-Preechathammarach, Raksit Tyler
name: Tamashiro, Junko
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2024
Subjects: Shika-muni language

description: 1 TXT file. Recording missing. Participant is a speaker of Itoman Okinawan, but not of Yaeyaman.
Thermoelectric properties of the Corbino disk in graphene
Creators: name: Rycerz, Adam
name: Rycerz, Katarzyna
name: Witkowski, Piotr
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Thermopower and the Lorentz number for an edge-free (Corbino) graphene disk in the quantum Hall regime is calculated within the Landauer-Büttiker formalism. We find, by varying the electrochemical potential, that amplitude of the Seebeck coefficient follows a modified Goldsmid-Sharp relation, in which energy gap is identified with the interval between zero-th and first Landau level in bulk graphene. Analogous relation for the Lorentz number is also determined. Therefore, these thermoelectric properties are solely defined by the magnetic field, temperature, the Fermi velocity in graphene, and fundamental constants including the electrons charge, the Planck and Boltzmann constants, being independent on the system geometric dimensions. This suggests that the Corbino disk in graphene may operate as a thermoelectric thermometer, allowing to determine small temperature difference between two reservoirs, if mean temperature and magnetic field are known.
description: Minor revisions; Refs. added. Sec.II revised and extended. RevTeX; 11 pages, 7 figures
Extensible quantum simulation architecture based on atom-photon bound states in an array of high-impedance resonators
Creators: name: Scigliuzzo, Marco
name: Calajò, Giuseppe
name: Ciccarello, Francesco
name: Lozano, Daniel Perez
name: Bengtsson, Andreas
name: Scarlino, Pasquale
name: Wallraff, Andreas
name: Chang, Darrick
name: Delsing, Per
name: Gasparinetti, Simone
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Engineering the electromagnetic environment of a quantum emitter gives rise to a plethora of exotic light-matter interactions. In particular, photonic lattices can seed long-lived atom-photon bound states inside photonic band gaps. Here we report on the concept and implementation of a novel microwave architecture consisting of an array of compact, high-impedance superconducting resonators forming a 1 GHz-wide pass band, in which we have embedded two frequency-tuneable artificial atoms. We study the atom-field interaction and access previously unexplored coupling regimes, in both the single- and double-excitation subspace. In addition, we demonstrate coherent interactions between two atom-photon bound states, in both resonant and dispersive regimes, that are suitable for the implementation of SWAP and CZ two-qubit gates. The presented architecture holds promise for quantum simulation with tuneable-range interactions and photon transport experiments in nonlinear regime.
Global existence of weak solutions to the drift-flux system for general pressure laws
Creators: name: Li, Hai-Liang
name: Shou, Ling-Yun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 76T10, 35Q30, 35D30

description: The initial value problem to the multi-dimensional drift-flux model for two-phase flow is investigated in this paper, and the global existence of weak solutions with finite energy is established for general pressure-density functions without the monotonicity assumption.
description: 42 pages