cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Phase-change silicon as an ultrafast active photonic platform
Creators: name: Wang, Letian
name: Eliceiri, Matthew
name: Deng, Yang
name: Rho, Yoonsoo
name: Shou, Wan
name: Pan, Heng
name: Yao, Jie
name: Grigoropoulos, Costas P.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Phase change material (PCM) features distinct optical or electronic properties between amorphous and crystalline states. Recently, it starts to play a key role in the emerging photonic applications like optoelectronic display, dynamic wavefront control, on-chip photonic memory and computation. However, current PCMs do not refract effectively at visible wavelengths and suffer from deformation and decomposition, limiting the repeatability and vast visible wavelength applications. Silicon as the fundamental material for electronics and photonics, has never been considered as phase change material, due to its ultrafast crystallization kinetics. Here we show the striking fact that nanoscale silicon domains can be reversibly crystallized and amorphized under nanosecond laser pulses. For a typical disk resonator, it also provides a 25% non-volatile modulation at nanosecond time scale. We further show proof-of-concept experiments that such attributes could enable ultra-high resolution dielectric color display and dynamic visible wavefront control.
Lyapunov instability and collective tangent space dynamics of fluids
Creators: name: Posch, Harald A.
name: Forster, Christina
Publisher: name: arXiv
Year: 2002
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: The phase space trajectories of many body systems charateristic of simple fluids are highly unstable. We quantify this instability by a set of Lyapunov exponents, which are the rates of exponential divergence, or convergence, of initial (infinitesimal) perturbations along carefully selected directions in phase space. It is demonstrated that the perturbation associated with the maximum Lyapunov exponent is localized in space. This localization persists in the large-particle limit, regardless of the interaction potential. The perturbations belonging to the smallest positive exponents, however, are sensitive to the potential. For hard particles they form well-defined long-wavelength modes. The modes could not be observed for systems interacting with a soft potential due to surprisingly large fluctuations of the local time-dependent exponents.
description: 10 pages, 6 figures
Smart Water Irrigation for Rice Farming through the Internet of Things
Creators: name: Binayao, Regie Porras
name: Mantua, Paul Vincent Lagapa
name: Namocatcat, Holy Rose May Pardillo
name: Seroy, Jade Kachel Klient Bocboc
name: Sudaria, Phoebe Ruth Alithea Bacotot
name: Gumonan, Kenn Migan Vincent Casicas
name: Orozco, Shiela Mae Malbas
Publisher: name: arXiv
Year: 2024
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences
subject: C.3

description: This study intends to build smart water irrigation for rice farming using IoT and microcontroller devices with solar panel support. The system demonstrates the capabilities of automated irrigation by reducing physical labor through smart monitoring of the temperature, soil moisture, and humidity using multiple sensors. This study uses an agile methodology as it is suitable for reiterative operation for the development of the prototype. The mean result for the interpretation of data gathered for the systems' adaptability and flexibility is 4.32. The researchers were able to develop smart water irrigation for rice farming using IoT and microcontroller devices with solar panel support and the respondents also agreed that Smart water irrigation for rice farming using IoT and microcontroller devices with solar panel support is practical and valuable. A decision support system is recommended that can analyze data collected from IoT sensors and provide further recommendations. Based on the results, it is also suggested that future researchers use drip irrigation, instead of flood irrigation. Smart water irrigation has the potential to revolutionize agriculture, enhance environmental sustainability, and address pressing global challenges related to water resources and food security. These implications highlight the importance of continued research and innovation in this field.
description: 14 pages, 5 figures, 1 table
Knemodynerus aequabilis GUSENLEITNER 1995
Creators: name: J. M
name: Madl, M.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Eumenidae
Knemodynerus
Knemodynerus aequabilis

description: Knemodynerus aequabilis GUSENLEITNER 1995
 Knemodynerus aequabilis n.sp.: GUSENLEITNER 1995: 211 (descr. Ƌ ♀, Madagascar), 215 (figs 7- 11).
 Knemodynerus aequabilis GUSENLEITNER 1995: BORSATO 1999: 108 (Madagascar).
 Knemodynerus aequilabilis (!) GUSENLEITNER 1995: GUSENLEITNER 2004: 1079 (Madagascar).
D i s t r i b u t i o n: Madagascar: Prov. Toliara: Berenty Reserve, Ranobe (N Toliara), 5 km N Toliara, 27 km N Toliara, Toliara.
Endemic.
description: Published as part of J. M & Madl, M., 2009, A Catalogue of the Vespidae of the Malagasy Subregion (Insecta, Hymenoptera), pp. 1871-1935 in Linzer biologische Beiträge 41 (2) on page 1883, DOI: 10.5281/zenodo.5280237
Nonperturbative Ball-Chiu construction of the three-gluon vertex
Creators: name: Aguilar, A. C.
name: Ferreira, M. N.
name: Figueiredo, C. T.
name: Papavassiliou, J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present the detailed derivation of the longitudinal part of the three-gluon vertex from the Slavnov-Taylor identities that it satisfies, by means of a nonperturbative implementation of the Ball-Chiu construction; the latter, in its original form, involves the inverse gluon propagator, the ghost dressing function, and certain form factors of the ghost-gluon kernel. The main conceptual subtlety that renders this endeavor nontrivial is the infrared finiteness of the gluon propagator, and the resulting need to separate the vertex into two pieces, one that is intimately connected with the emergence of a gluonic mass scale, and one that satisfies the original set of Slavnov-Taylor identities, but with the inverse gluon propagator replaced by its "kinetic" term. The longitudinal form factors obtained by this construction are presented for arbitrary Euclidean momenta, as well as special kinematic configurations, parametrized by a single momentum. A particularly preeminent feature of the components comprising the tree-level vertex is their considerable suppression for momenta below 1 GeV, and the appearance of the characteristic "zero-crossing" in the vicinity of 100-200 MeV. Special combinations of the form factors derived with this method are compared with the results of recent large-volume lattice simulations as well as Schwinger-Dyson equations, and good overall agreement is found. A variety of issues related to the distribution of the pole terms responsible for the gluon mass generation are discussed in detail, and their impact on the structure of the transverse parts is elucidated. In addition, a brief account of several theoretical and phenomenological possibilities involving these newly acquired results is presented.
description: 55 pages, 18 figures
Additional file 2: of Targeting CYP4A attenuates hepatic steatosis in a novel multicellular organotypic liver model
Creators: name: Jae-Sung Ryu
name: Minji Lee
name: Mun, Seon
name: Sin-Hyoung Hong
name: Ho-Joon Lee
name: Hyo-Suk Ahn
name: Chung, Kyung-Sook
name: Gun-Hwa Kim
name: Son, Myung
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry

description: Table S1. List of antibodies used in this study. (DOCX 15 kb)
Non-emission line young stars of intermediate mass
Creators: name: Manoj, P.
name: Maheswar, G.
name: Bhatt, H. C.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present optical spectra of four intermediate mass candidate young stellar objects that have often been classified as Herbig Ae/Be stars. Typical Herbig Ae/Be emission features are not present in the spectra of these stars. Three of them, HD 36917, HD 36982 and HD 37062 are members of the young Orion Nebula Cluster (ONC). This association constrains their ages to be < 1 Myr. The lack of appreciable near infrared excess in them suggests the absence of hot dust close to the central star. But they do possess significant amounts of cold and extended dust component as revealed by the large excess emission observed at far infrared wavelengths. Fractional infrared luminosity $L_{ir}/L_{\star}$ and the dust masses computed from IRAS fluxes are systematically lower than that found for Herbig Ae/Be stars but higher than those for Vega-like stars. These stars may then represent the youngest examples of Vega phenomenon known so far. In contrast, the other star in our sample, HD 58647, is more likely to be a classical Be star as evident from the low $L_{ir}/L_{\star}$, scarcity of circumstellar dust, low polarization, presence of H$α$ emission and near infrared excess and far infrared spectral energy distribution consistent with free-free emission similar to other well known classical Be stars.
description: 7 pages, 5 figures, accepted by MNRAS
The chimera revisited: Wall- and magnetically-bounded turbulent flows
Creators: name: Basse, Nils T.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: This paper is a first attempt at bringing together various concepts from research on wall- and magnetically-bounded turbulent flows. Brief reviews of both fields are provided: The main similarities identified are coherent (turbulent) structures, flow generation and transport barriers. Examples are provided and discussed.
description: 47 pages, 5 tables, 1 figure
Leptomenes extremus GUSENLEITNER 2005
Creators: name: J. M
name: Madl, M.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Eumenidae
Leptomenes
Leptomenes extremus

description: Leptomenes extremus GUSENLEITNER 2005
 Leptomenes extremus n.sp.: GUSENLEITNER 2005: 1182 (descr. Ƌ, Madagascar), 1196 (figs 7, 8).
D i s t r i b u t i o n: Madagascar: Prov. Fianarantsoa: 40 km S Ambositra (Radio Tower).
Endemic.
description: Published as part of J. M & Madl, M., 2009, A Catalogue of the Vespidae of the Malagasy Subregion (Insecta, Hymenoptera), pp. 1871-1935 in Linzer biologische Beiträge 41 (2) on page 1885, DOI: 10.5281/zenodo.5280237
Exploring patient trust in clinical advice from AI-driven LLMs like ChatGPT for self-diagnosis
Creators: name: Du, Delong
name: Paluch, Richard
name: Stevens, Gunnar
name: Müller, Claudia
Publisher: name: arXiv
Year: 2024
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Trustworthy clinical advice is crucial but burdensome when seeking health support from professionals. Inaccessibility and financial burdens present obstacles to obtaining professional clinical advice, even when healthcare is available. Consequently, individuals often resort to self-diagnosis, utilizing medical materials to validate the health conditions of their families and friends. However, the convenient method of self-diagnosis requires a commitment to learning and is often not effective, presenting risks when individuals seek self-care approaches or treatment strategies without professional guidance. Artificial Intelligence (AI), supported by Large Language Models (LLM), may become a powerful yet risky self-diagnosis tool for clinical advice due to the hallucination of LLM, where it produces inaccurate yet deceiving information. Thus, can we trust the clinical advice from AI-driven LLMs like ChatGPT like ChatGPT4 for self-diagnosis? We examined this issue through a think-aloud observation: a patient uses GPT4 for self-diagnosis and clinical advice while a doctor assesses ChatGPT responses with their own expertise. After that, we conducted a semi-structured interview with the patient to understand their trust in AI-driven LLMs for clinical advice. we have concluded that the confounding factors influencing a patient's trust revolve around their competency-evaluation. Essentially, trust is equated with efficacy, which is determined by whether decisions made based on the AI agent's clinical advice and suggestion will effectively achieve the patient health goals. Patients tend to trust doctors more than AI agents due to this strategy, believing that educated, authorized doctors can provide effective medical guidance. This competency-based trust also explains why patients often perceive more experienced doctors as more trustworthy compared to less experienced ones.
The Hamiltonian Dynamics of Bounded Spacetime and Black Hole Entropy: The Canonical Method
Creators: name: Park, Mu-in
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: From first principles, I present a concrete realization of Carlip's idea on the black hole entropy from the conformal field theory on the horizon in any dimension. New formulation is free of inconsistencies encountered in Carlip's. By considering a correct gravity action, whose variational principle is well defined at the horizon, I $derive$ a correct $classical$ Virasoro generator for the surface deformations at the horizon through the canonical method. The existence of the classical Virasoro algebra is crucial in obtaining an operator Virasoro algebra, through canonical quantization, which produce the right central charge and conformal weight $\sim A_+/\hbar G$ for the semiclassical black hole entropy. The coefficient of proportionality depends on the choice of ground state, which has to be put in by hand to obtain the correct numerical factor 1/4 of the Bekenstein-Hawking (BH) entropy. The appropriate ground state is different for the rotating and the non-rotating black holes but otherwise it has a $universality$ for a wide variety of black holes. As a byproduct of my results, I am led to conjecture that {\it non-commutativity of taking the limit to go to the horizon and computing variation is proportional to the Hamiltonian and momentum constraints}. It is shown that almost all the known uncharged black hole solutions satisfy the conditions for the universal entropy formula.
description: Much details omitted, references added, accepted in Nucl. Phys. B
Translation-covariant Markovian master equation for a test particle in a quantum fluid
Creators: name: Vacchini, B.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A recently proposed master equation in the Lindblad form is studied with respect to covariance properties and existence of a stationary solution. The master equation describes the interaction of a test particle with a quantum fluid, the so-called Rayleigh gas, and is characterized by the appearance of a two-point correlation function known as dynamic structure factor, which reflects symmetry and statistical mechanics properties of the fluid. In the case of a free gas all relevant physical parameters, such as fugacity, ratio between the masses, momentum transfer and energy transfer are put into evidence, giving an exact expansion of the dynamic structure factor. The limit in which these quantities are small is then considered. In particular in the Brownian limit a Fokker-Planck equation is obtained in which the corrections due to quantum statistics can be explicitly evaluated and are given in terms of the Bose function $g_0 (z)$ and the Fermi function $f_0 (z)$.
description: 18 pages, revtex, no figures, to appear in J. Math. Phys
eHealth Intervention to Improve Health Habits in the Adolescent Population: Mixed Methods Study
Creators: name: Benavides, Carmen
name: Benítez-Andrades, José Alberto
name: Marqués-Sánchez, Pilar
name: Arias, Natalia
Publisher: name: arXiv
Year: 2024
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Background: Technology has provided a new way of life for adolescents. Strategies aimed at improving health behaviors through digital platforms can offer promising results. However, since peers can modify behaviors related to food and exercise, studying digital interventions based on peer influence to improve weight status of adolescents is important.
 Objective: To assess an eHealth app's effectiveness in adolescent population improvements in age- and sex-adjusted BMI percentiles. The study also examined social relationships of adolescents pre- and postintervention, identifying group leaders to study their profiles, eating, physical activity habits, and app usage.
 Methods: BMI percentiles were calculated following World Health Organization guidelines. Participants' diets and physical activity levels were assessed using the KIDMED questionnaire and PAQ-A. Social network variables were analyzed using SNA methodology, with reciprocal friendships used to compute the "degree" measure for centrality.
 Results: The sample included 210 individuals in the intervention group and 91 in the control group, with a 60.1% participation rate. Adolescents in the intervention group modified their BMI toward the 50th percentile, improving diet and increasing social network postintervention. Group leaders were also leaders in physical activity and app usage.
Anomalous ANITA air shower events and tau decays
Creators: name: Chipman, Shoshana
name: Diesing, Rebecca
name: Reno, Mary Hall
name: Sarcevic, Ina
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Two unusual neutrino events in the Antarctic Impulse Transient Antenna (ANITA) appear to have been generated by air showers from a particle emerging from the Earth at angles 25-35 degrees above the horizon. We evaluate the effective aperture for ANITA with a simplified detection model to illustrate the features of the angular dependence of expected events for incident standard model tau neutrinos and for sterile neutrinos that mix with tau neutrinos. We apply our sterile neutrino aperture results to a dark matter scenario with long-lived supermassive dark matter that decay to sterile neutrino-like particles. We find that for up-going air showers from tau decays, from isotropic fluxes of standard model, sterile neutrinos or other particles that couple to the tau through suppressed weak interaction cross sections cannot be responsible for the unusual events.
description: 13 pages, 12 figures
Dimensional hierarchy of higher-order topology in three-dimensional sonic crystals
Creators: name: Zhang, Xiujuan
name: Xie, Bi-Ye
name: Wang, Hong-Fei
name: Xu, Xiangyuan
name: Tian, Yuan
name: Jiang, Jian-Hua
name: Lu, Ming-Hui
name: Chen, Yan-Feng
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Topological phases of matter have been extensively studied for their intriguing bulk and edge properties. Recently, higher-order topological insulators with boundary states that are two or more dimensions lower than the bulk states, have been proposed and investigated as novel states of matter. Previous implementations of higher-order topological insulators were based on two-dimensional (2D) systems in which 1D gapped edge states and 0D localized corner states were observed. Here we theoretically design and experimentally realize a 3D higher-order topological insulator in a sonic crystal with a large topological band gap. We observe the coexistence of third-, second- and first-order topological boundary states with codimension three, two and one, respectively, indicating a dimensional hierarchy of higher-order topological phenomena in 3D crystals. Our acoustic metamaterial goes beyond the descriptions of tight-binding model and possesses a band structure which automatically breaks the chiral symmetry, leading to the separation of bulk, surface, hinge and corner states. Our study opens a new route toward higher-order topological phenomena in three-dimensions and paves the way for topological wave trapping and manipulation in a hierarchy of dimensions in a single system.
description: 29 pages, 4 figures
A cosmological surprise: the universe accelerates
Creators: name: Leibundgut, Bruno
name: Sollerman, Jesper
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Review article on the cosmological implications of Type Ia Supernovae for Europhysics News.
description: 12 pages, 5 figs (submitted as jpeg), full version in Europhysics News
Leptomenes laethificus GIORDANI SOIKA 1941
Creators: name: J. M
name: Madl, M.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Eumenidae
Leptomenes
Leptomenes laethificus

description: Leptomenes laethificus GIORDANI SOIKA 1941
 Leptomenes (Leptomenes) laethificus n.sp.: GIORDANI SOIKA 1941: 187 (descr. Ƌ, Madagascar).
 Leptomenes laethificus GIORDANI SOIKA 1941: GIORDANI SOIKA 1973: 27 (tax., Madagascar).
 Leptomenes laethificus GIORDANI SOIKA 1941: GIORDANI SOIKA 1977: 109 (key), 115 (tax., Madagascar).
 Leptomenes laethificus GIORDANI SOIKA 1941: BORSATO & RATTI 1999: 82 (cat.).
D i s t r i b u t i o n: Madagascar: Prov. Mahajanga: Maevatanana – Prov. Toliara: Bekily.
Endemic.
description: Published as part of J. M & Madl, M., 2009, A Catalogue of the Vespidae of the Malagasy Subregion (Insecta, Hymenoptera), pp. 1871-1935 in Linzer biologische Beiträge 41 (2) on page 1885, DOI: 10.5281/zenodo.5280237
Applicability of the Fisher Equation to Bacterial Population Dynamics
Creators: name: Kenkre, V. M.
name: Kuperman, M. N.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Quantitative Biology (q-bio)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The applicability of the Fisher equation, which combines diffusion with logistic nonlinearity, to population dynamics of bacterial colonies is studied with the help of explicit analytic solutions for the spatial distribution of a stationary bacterial population under a static mask. The mask protects the bacteria from ultraviolet light. The solution, which is in terms of Jacobian elliptic functions, is used to provide a practical prescription to extract Fisher equation parameters from observations and to decide on the validity of the Fisher equation.
description: 5 pages, 3 figs. included
D9.1 - Report on pilot preparations and pilot execution plan
Creators: name: Özkan, Hafize İlhan
name: Alpaslan, Özlem
name: Erkazancı, Alperen
name: Elmas, Hüsamettin
name: Sandal, Salih
name: M. Serdar Yümlü
name: Gültekin, Habib
name: Daly, Máire
name: O'Suilleabhain, Darragh
name: Walsh, Elaine
name: O'Reilly, Anthony
name: Beeckman, Rebecca
name: Looveren, Ronny Van
name: Doudouliakis, Konstantinos
name: Papastergios, Georgios
name: Mimilidis, Manolis
name: Kelessis, Apostolos
name: Tzoumaka, Paraskevi
name: Christantonis Charistes
name: Kontos, Vasilis
name: Giannakidou, Eleni
name: Nikolopoulos, Spiros
name: Yiannis Pragidis
Publisher: name: Zenodo
Year: 2019
Subjects: Policy making
Pilot preparation
Pilot execution plan
Data collection
Pilot scenarios
Stakeholders
User recruitment
Collection of feedback
Pilot evaluation

description: This report acts as a guideline for all activities related to the preparation and execution of CUTLER pilots. For each pilot city, we first briefly describe the pilot scenario, policy making challenges and the expected benefits from the use of the CUTLER platform. In Thessaloniki, the CUTLER platform will be used to plan, implement, monitor and evaluate the use of a new controlled parking system. In Antalya, CUTLER will be used to improve the touristic capabilities of the area surrounding Düden Brook Waterfalls by evaluating concrete measures and actions for accessibility, water usage, environmental protection and mobility. In Antwerp, the platform will be used to monitor and evaluate the Strategic Urban Waterplan of the city and the implementation of green streets and even steer new urban developments. Finally, Cork County Council will utilize the platform to facilitate evidence-based decisions for the touristic exploitation of Camden Fort Meagher, focusing on future access points (by land and sea), facilities (i.e. car parking) and access mechanisms (i.e. modes of transport) in the pilot area. Moreover, for each city pilot, we discuss the expected use of the CUTLER platform and its impact to policy making, as well as summarize the pilot preparation activities. Preparation activities include: a) definition of all stakeholders to be involved in the pilot implementation, their roles and responsibilities and their level of involvement; b) co-creation activities; and c) data collection activities. We also discuss in details identified risks for pilot implementation and envisaged mitigation measures.
Equations of macroscopic electrodynamics for two-dimensional crystals
Creators: name: Mikhailov, S. A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The electrodynamics of two-dimensional (2D) dielectric and conducting layers cannot be described by such three-dimensional macroscopic quantities as the dielectric constant $ε$ or the refractive index $n$. By means of the proper averaging of the microscopic Maxwell equations we derive general macroscopic electrodynamic equations for 2D crystals and discuss some of their consequences.
description: 4 pages, 3 figures
Decay Rates and Probability Estimates for Massive Dirac Particles in the Kerr-Newman Black Hole Geometry
Creators: name: Finster, Felix
name: Kamran, Niky
name: Smoller, Joel
name: Yau, Shing-Tung
Publisher: name: arXiv
Year: 2001
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The Cauchy problem is considered for the massive Dirac equation in the non-extreme Kerr-Newman geometry, for smooth initial data with compact support outside the event horizon and bounded angular momentum. We prove that the Dirac wave function decays in L^\infty_loc at least at the rate t^{-5/6}. For generic initial data, this rate of decay is sharp. We derive a formula for the probability p that the Dirac particle escapes to infinity. For various conditions on the initial data, we show that p=0,1 or 0
description: 42 pages, 3 figures (published version)
Stochastic synchronization in globally coupled phase oscillators
Creators: name: Sakaguchi, Hidetsugu
Publisher: name: arXiv
Year: 2002
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: Cooperative effects of periodic force and noise in globally Cooperative effects of periodic force and noise in globally coupled systems are studied using a nonlinear diffusion equation for the number density. The amplitude of the order parameter oscillation is enhanced in an intermediate range of noise strength for a globally coupled bistable system, and the order parameter oscillation is entrained to the external periodic force in an intermediate range of noise strength. These enhancement phenomena of the response of the order parameter in the deterministic equations are interpreted as stochastic resonance and stochastic synchronization in globally coupled systems.
description: 5 figures
Additional file 1: of Targeting CYP4A attenuates hepatic steatosis in a novel multicellular organotypic liver model
Creators: name: Jae-Sung Ryu
name: Minji Lee
name: Mun, Seon
name: Sin-Hyoung Hong
name: Ho-Joon Lee
name: Hyo-Suk Ahn
name: Chung, Kyung-Sook
name: Gun-Hwa Kim
name: Son, Myung
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Molecular Biology
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Developmental Biology
subject: Cancer

description: Figure S1. Optimization of hepatic spheroid formation. (A) Schematic diagram of our novel method for hepatic spheroid generation. HepaRG cells, HUVECs, and MSCs were co-assembled on a thick layer of Matrigel. Upper middle images present the well-organized 3D spheroids, and lower middle images present the failure of 3D cell clusters in a 24-well plate. The right image shows the representative gross morphology and an illustration of self-assembled hepatic spheroids on a Matrigel bed in a conical tube. (B) Schematic diagram of hepatic spheroid generation protocols. (C-E) mRNA expression levels of the indicated hepatocyte-specific markers were determined at different (C) time points during self-organization, (D) cell numbers, and (E) differentiation schedules using real-time PCR. β-Actin expression was used as an internal control; n = 3. *p < 0.05, **p < 0.01, and ***p < 0.001. Figure S2. Optimization of hepatic steatosis induction in 2D-cultured HepG2 cells. (A) Each indicated glucose and palmitate concentration was used to treat HepG2 cells for 7 days. Intracellular lipids were stained with Nile red (top) and quantified by red fluorescence intensity (bottom); n = 3. (B) Cell viability was measured by a cell counting kit-8 (CCK-8) assay in each indicated condition; n = 3. (C) mRNA expression levels of SREBP and FASN were determined in each indicated condition. β-Actin was used as an internal control; n = 3. *p < 0.05, **p < 0.01, and ***p < 0.001. Figure S3. Effects of the CYP4A inhibitor HET0016 in 2D-cultured HepG2 cells. (A) Activity of CYP4A was determined in retroviral CYP4A-transduced and 5 μM HET0016-treated HepG2 cells; n = 3. (B) Intracellular lipid droplets were stained with Nile red (left) and quantified by red fluorescence intensity (right) in each indicated condition; n = 3. (C) Glucose uptake was assayed (left) and quantified by fluorescence intensity (right) in each group; n = 3. *p < 0.05, **p < 0.01, and ***p < 0.001. Figure S4. Effects of the CYP4A inhibitor HET0016 on ROS generation induced by ER stress in 2D-cultured HepG2 cells. HepG2 cells treated with (A) palmitate (250 μM), (B) tunicamycin (5 μg/μl), or (C) thapsigargin (1 μM) for 72 hours were stained with H2DCFDA (left) and quantified by fluorescence intensity (right) in each indicated condition; n = 3. *p < 0.05, **p < 0.01, and ***p < 0.001. Figure S5. The extended data for each Western blot analysis. (PDF 1860 kb)
A Physiological Sensor-Based Android Application Synchronized with a Driving Simulator for Driver Monitoring
Creators: name: González-Ortega, David
name: Díaz-Pernas, Francisco Javier
name: Martínez-Zarzuela, Mario
name: Antón-Rodríguez, Míriam
Publisher: name: arXiv
Year: 2024
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Machine Learning (cs.LG)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, we present an Android application to control and monitor the physiological sensors from the Shimmer platform and its synchronized working with a driving simulator. The Android app can monitor drivers and their parameters can be used to analyze the relation between their physiological states and driving performance. The app can configure, select, receive, process, represent graphically, and store the signals from electrocardiogram (ECG), electromyogram (EMG) and galvanic skin response (GSR) modules and accelerometers, a magnetometer and a gyroscope. The Android app is synchronized in two steps with a driving simulator that we previously developed using the Unity game engine to analyze driving security and efficiency. The Android app was tested with different sensors working simultaneously at various sampling rates and in different Android devices. We also tested the synchronized working of the driving simulator and the Android app with 25 people and analyzed the relation between data from the ECG, EMG, GSR, and gyroscope sensors and from the simulator. Among others, some significant correlations between a gyroscope-based feature calculated by the Android app and vehicle data and particular traffic offences were found. The Android app can be applied with minor adaptations to other different users such as patients with chronic diseases or athletes.
description: 28 pages
Adaptive second-order Crank-Nicolson time-stepping schemes for time fractional molecular beam epitaxial growth models
Creators: name: Ji, Bingquan
name: Liao, Hong-lin
name: Gong, Yuezheng
name: Zhang, Luming
Publisher: name: arXiv
Year: 2019
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 35Q99, 65M06, 65M12, 74A50

description: Adaptive second-order Crank-Nicolson time-stepping methods using the recent scalar auxiliary variable (SAV) approach are developed for the time-fractional Molecular Beam Epitaxial models with Caputo's derivative. Based on the piecewise linear interpolation, the Caputo's fractional derivative is approximated by a novel second-order formula, which is naturally suitable for a general class of nonuniform meshes and essentially preserves the positive semi-definite property of integral kernel. The resulting Crank-Nicolson SAV time-stepping schemes are unconditional energy stable on nonuniform time meshes, and are computationally efficient in multiscale time simulations when combined with adaptive time steps, such as are appropriate for accurately resolving the intrinsically initial singularity of solution and for efficiently capturing fast dynamics away from the initial time. Numerical examples are presented to show the effectiveness of our methods.
description: 23 pages, 23 figures
Leptomenes schulthessianus
Creators: name: J. M
name: Madl, M.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Eumenidae
Leptomenes
Leptomenes schulthessianus

description: Leptomenes schulthessianus (de SAUSSURE 1890)
 Nortonia schulthessiana n.sp.: de SAUSSURE 1890: 157 (descr.Ƌ, Madagascar), pl. 17 (figs 8, 8a,c).
 Nortonia schulthessiana de SAUSSURE 1891: DALLA TORRE 1894: 109 (cat.).
 Nortonia schulthessiana de SAUSSURE 1891: von DALLA TORRE 1904: 32 (cat.).
 Nortonia schulthessiana de SAUSSURE 1891: von SCHULTHESS- RECHBERG 1904: 279 (key), 282 (tax, cat.).
 Nortonia schulthessiana de SAUSSURE 1891: KOHL 1906: 233 (tax., descr. Ƌ, Madagascar), 244 (key), pl. 4 (fig. 26), pl. 6 (figs 1, 28), pl. 7 (figs 12, 18).
 Pachymenes schulthessianus (de SAUSSURE 1890): BEQUAERT 1918: 284 (cat.).
 Leptomenes schulthessianus (de SAUSSURE 1890): GIORDANI SOIKA 1939: 88 (tax.).
 Leptomenes (Eumenidiopsis) schulthessianus (de SAUSSURE 1890): GIORDANI SOIKA 1941: 187 (tax., descr. ♀, Madagascar).
 Leptomenes schulthessianus (de SAUSSURE 1890): GIORDANI SOIKA 1973: 27 (tax., Madagascar).
 Leptomenes schulthessianus (de SAUSSURE 1890): GIORDANI SOIKA 1977: 109 (key), 113 (tax., Madagascar).
 Leptomenes schulthessianus (de SAUSSURE 1890): GUSENLEITNER 2004: 1078 (Madagascar).
D i s t r i b u t i o n: Madagascar: Prov. Antsiranana: Nosy Be – Prov. Antananarivo: Antsirabe – Prov. Fianarantsoa: Ihosy – Prov. Toliara: Bekily, Isoanala, S Sakaraha (Anteninde-Tal), 27 km N Toliara.
Endemic.
description: Published as part of J. M & Madl, M., 2009, A Catalogue of the Vespidae of the Malagasy Subregion (Insecta, Hymenoptera), pp. 1871-1935 in Linzer biologische Beiträge 41 (2) on pages 1885-1886, DOI: 10.5281/zenodo.5280237
Galaxy groups in the 2dF redshift survey: The catalogue
Creators: name: Merchan, Manuel
name: Zandivarez, Ariel
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We construct a galaxy groups catalogue from the public 100K data release of the 2dF galaxy redshift survey. The group identification is carried out using a slightly modified version of the group finding algorithm developed by Huchra & Geller. Several tests using mock catalogues allow us to find the optimal conditions to increase the reliability of the final group sample. A minimum number of 4 members, an outer number density enhancement of 80 and a linking radial cutoff of $200 km sec^{-1}$, are the best obtained values from the analysis. Using these parameters, approximately 90% of groups identified in real space have a redshift space counterpart. On the other hand the level of contamination in redshift space reaches to 30 % including a $\sim 6%$ of artificial groups and $\sim 24%$ of groups associated with binaries or triplets in real space. The final sample comprise 2209 galaxy groups covering the sky region described by Colless et al. spanning over the redshift range of $0.003 \leq z \leq 0.25$ with a mean redshift of 0.1.
description: Accepted for publication in the MNRAS. 8 figures 8 pages
On the number of prime divisors and radicals of non-zero Fourier coefficients of Hilbert cusp forms
Creators: name: Naik, Sunil L
Publisher: name: arXiv
Year: 2024
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11F11, 11F30, 11N56

description: In this article, we derive lower bounds for the number of distinct prime divisors of families of non-zero Fourier coefficients of non-CM primitive cusp forms and more generally of non-CM primitive Hilbert cusp forms. In particular, for the Ramanujan $Δ$-function, we show that for any $ε> 0$, there exist infinitely many natural numbers $n$ such that $τ(p^n)$ has at least $$ 2^{(1-ε) \frac{\log n}{\log\log n}} $$ distinct prime factors for almost all primes $p$. This improves and refines the existing bounds. We also study lower bounds for absolute norms of radicals of non-zero Fourier coefficients of Modular forms alluded to above.
Higher-Order Corrections to Instantons
Creators: name: Jentschura, U. D.
name: Zinn-Justin, J.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The energy levels of the double-well potential receive, beyond perturbation theory, contributions which are non-analytic in the coupling strength; these are related to instanton effects. For example, the separation between the energies of odd- and even-parity states is given at leading order by the one-instanton contribution. However to determine the energies more accurately multi-instanton configurations have also to be taken into account. We investigate here the two-instanton contributions. First we calculate analytically higher-order corrections to multi-instanton effects. We then verify that the difference betweeen numerically determined energy eigenvalues, and the generalized Borel sum of the perturbation series can be described to very high accuracy by two-instanton contributions. We also calculate higher-order corrections to the leading factorial growth of the perturbative coefficients and show that these are consistent with analytic results for the two-instanton effect and with exact data for the first 200 perturbative coefficients.
description: 7 pages, LaTeX
Bothriomyrmex meridionalis subsp. gibbus Soudek 1925
Creators: name: Bezděčková, Klára
name: Bezděčka, Pavel
name: Macek, Ján
name: Malenovský, Igor
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Bothriomyrmex
Bothriomyrmex meridionalis
Bothriomyrmex meridionalis gibbus soudek, 1925

description: Bothriomyrmex meridionalis gibbus Soudek, 1925
 Bothriomyrmex meridionalis gibbus Soudek, 1925a: 216, Figs 1–10 (original description).
A lectotype and three paralectotypes are deposited in MMBC (all dry-mounted, glued on rectangular card labels):
LECTOTYPE (♀): ‘Typus [p, dark red label] // Transcriptio [p, underlined] / Moravia centr. / Moravský kras 15. iv. / Suchý žleb 1923 / Št. Soudek leg. [hw] // Collectio / J. Slavíček / Moravské museum, Brno [p] // Transcriptio [p, underlined] / Bothriomyrmex [worker symbol] / meridionalis / gibbus ssp. n. / Št. Soudek det. [hw] // Syn- / typus [p, red label] // Invent. č. [p] / 1190 /Ent. [hw] / Mor. museum, Brno [p] // Lectotype / Bothriomyrmex / gibbus Soudek, / 1924 / Dubovikoff des. [hw, red label]’.
PARALECTOTYPE (1 ♀): ‘Macocha / 1923 Dr. Soudek [hw] // Bothr. merid. / gibbus. [hw] // Collectio / J. Slavíček / Moravské museum, Brno [p] // Transcriptio [p, underlined] / Moravia centr. / Moravský kras 15. iv. / Suchý žleb 1923 / Št. Soudek leg. [hw] // Transcriptio [p, underlined] / Bothriomyrmex / meridionalis [worker symbol] / gibbus ssp. n. / Št. Soudek det. [hw] // Syn- / typus [p, red label] // Invent.č. [p] / 1187 /Ent. [hw] / Mor. museum, Brno [p] // Paralectotype / Bothriomyrmex / gibbus Soudek, / 1924 / Dubovikoff des. [hw, red label]’.
PARALECTOTYPE (1 ♀): ‘Type [p, dark red label framed black] // Transcriptio [p, underlined] / Moravia centr. / Moravský kras / Suchý žleb 1923 / Št. Soudek leg. [hw] // Collectio / J. Slavíček / Moravské museum, Brno [p] // Transcriptio [p, underlined] / Bothriomyrmex [worker symbol] / meridionalis / gibbus ssp. n. / Št. Soudek det. [hw] // Syn- / typus [p, red label] // Invent. č. [p] / 1189 /Ent. [hw] / Mor. museum, Brno [p] // Paralectotype / Bothriomyrmex / gibbus Soudek / Dubovikoff des. [hw, red label]’.
PARALECTOTYPE (1 ♀): ‘Transcriptio [p, underlined] / Moravia centr. / Moravský kras / Suchý žleb 1923 / Št. Soudek leg. [hw] // Collectio / J. Slavíček / Moravské museum, Brno [p] // Transcriptio [p, underlined] / Bothriomyrmex [worker symbol] / meridionalis / gibbus ssp. n. / Št. Soudek det. [hw] // Syn- / typus [p, red label] // Invent. č. [p] / 1191 /Ent. [hw] / Mor. museum, Brno [p] // Paralectotype / Bothriomyrmex / gibbus Soudek / Dubovikoff des. [hw, red label]’.
 Current status. Junior subjective synonym of Bothriomyrmex corsicus Santschi, 1923 according to SEIFERT (2012), see also BOLTON (2016).
 Remarks. The lectotype was designated by DUBOVIKOV (2002: 922).
description: Published as part of Bezděčková, Klára, Bezděčka, Pavel, Macek, Ján & Malenovský, Igor, 2017, Catalogue of type specimens of ants (Hymenoptera: Formicidae) deposited in Czech museums, pp. 295-308 in Acta Entomologica Musei Nationalis Pragae 57 (1) on pages 297-298
Nodal and Periastron Precession of Inclined Orbits in the Field of a Rotating Black Hole
Creators: name: Sibgatullin, Nail
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The inclination of low-eccentricity orbits is shown to significantly affect the orbital parameters, in particular, the Keplerian, nodal precession, and periastron rotation frequencies, which are interpreted in terms of observable quantities. For the nodal precession and periastron rotation frequencies of low-eccentricity orbits in a Kerr field, we derive a Taylor expansion in terms of the Kerr parameter at arbitrary orbital inclinations to the black-hole spin axis and at arbitrary radial coordinates. The particle radius, energy, and angular momentum in the marginally stable circular orbits are calculated as functions of the Kerr parameter $j$ and parameter $s$ in the form of Taylor expansions in terms of $j$ to within $O[j^6]$. By analyzing our numerical results, we give compact approximation formulas for the nodal precession frequency of the marginally stable circular orbits at various $s$ in the entire range of variation of Kerr parameter.
description: 18 pages, to be published in Astronomy Letters, 2001, vol 27 (12)
On a non-Archimedean analogue of a question of Atkin and Serre
Creators: name: Bilu, Yuri F
name: Gun, Sanoli
name: Naik, Sunil L
Publisher: name: arXiv
Year: 2024
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11F11, 11F30, 11F80, 11N56, 11N05, 11N36, 11R45

description: In this article, we investigate a non-Archimedean analogue of a question of Atkin and Serre. More precisely, we derive lower bounds for the largest prime factor of non-zero Fourier coefficients of non-CM normalized cuspidal Hecke eigenforms of even weight $k \geq 2$, level $N$ with integer Fourier coefficients. In particular, we show that for such a form $f$ and for any real number $ε>0$, the largest prime factor of the $p$-th Fourier coefficient $a_f(p)$ of $f$, denoted by $P(a_f(p))$, satisfies $$ P(a_f(p)) ~>~ (\log p)^{1/8}(\log\log p)^{3/8 -ε} $$ for almost all primes $p$. This improves on earlier bounds. We also investigate a number field analogue of a recent result of Bennett, Gherga, Patel and Siksek about the largest prime factor of $a_f(p^m)$ for $m \geq 2$.
Purely rotational symmetry-protected topological crystalline insulator $α$-Bi4Br4
Creators: name: Hsu, Chuang-Han
name: Zhou, Xiaoting
name: Ma, Qiong
name: Gedik, Nuh
name: Bansil, Arun
name: Pereira, Vitor M
name: Lin, Hsin
name: Fu, Liang
name: Xu, Su-Yang
name: Chang, Tay-Rong
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Recent theoretical advances have proposed a new class of topological crystalline insulator (TCI) phases protected by rotational symmetries. Distinct from topological insulators (TIs), rotational symmetry-protected TCIs are expected to show unique topologically protected boundary modes: First, the surface normal to the rotational axis features unpinned Dirac surface states whose Dirac points are located at generic k points. Second, due to the higher-order bulk boundary correspondence, a 3D TCI also supports 1D helical edge states. Despite the unique topological electronic properties, to date, purely rotational symmetry-protected TCIs remain elusive in real materials. Using first-principles band calculations and theoretical modeling, we identify the van der Waals material $α$-Bi4Br4 as a TCI purely protected by rotation symmetry. We show that the Bi4Br4's (010) surface exhibits a pair of unpinned topological Dirac fermions protected by the two-fold rotational axis. These unpinned Dirac fermions show an exotic spin texture highly favorable for spin transport and a band structure consisting of van Hove singularities due to Lifshitz transition. We also identify 1D topological hinge states along the edges of an $α$-Bi4Br4 rod. We further discuss how the proposed topological electronic properties in $α$-Bi4Br4 can be observed by various experimental techniques.