cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Impacts of Different Habitats on the Composition of Bacterial Communities at the Discharging Endpoints of a Hypogene Thermal Karst System
Creators: name: Borsodi, Andrea K.
name: Anda, Dóra
name: Szabó, Attila
name: Megyes, Melinda
name: Krett, Gergely
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: The discharging zones of thermal karst caves provide special environmental conditions for bacteria involved in the biogeochemical processes. The taxonomic composition of bacterial communities inhabiting these still active natural habitats is largely unknown. The aim of this study was to reveal and compare the bacterial diversity of upwelling thermal waters, rock surface biofilms, and cave deposits using high-throughput next-generation sequencing. Two thermal karst caves formed in carbonate rocks and located at the discharging endpoints of the Transdanubian Range (Hungary) were studied: a sublacustrine spring cave and a phreatic hypogene cave. The results of 16S rRNA gene-based Illumina MiSeq amplicon sequencing revealed that almost all samples were dominated by Proteobacteria and/or Epsilonbacteraeota. Other abundant phyla showed habitat-dependent and diverse distributions. Sequences of the thermal waters were mainly associated with different chemolithotrophic sulfur-oxidizing bacteria (genera Thiovirga, Thiofaba, and Arcobacter in the sublacustrine thermal spring cave, whereas genera Sulfurovum, Sulfuricurvum, and Sulfurifustis were characteristic of the phreatic hypogene thermal cave) in accordance with the difference in environmental parameters. Sequences belonging to ammonia-oxidizing (unclassified Nitrosococcaceae) and nitrite-oxidizing bacteria (Nitrospira) were characteristic of the hypogene cave. Sequences related to photoautotrophic bacteria from the lake water and chemoheterotrophic bacteria from the sediment were only found in the sublacustrine spring cave samples.
A radio-emitting outflow produced by the tidal disruption event AT2020vwl
Creators: name: Goodwin, A. J.
name: Alexander, K. D.
name: Miller-Jones, J. C. A.
name: Bietenholz, M. F.
name: van Velzen, S.
name: Anderson, G. E.
name: Berger, E.
name: Cendes, Y.
name: Chornock, R.
name: Coppejans, D. L.
name: Eftekhari, T.
name: Gezari, S.
name: Laskar, T.
name: Ramirez-Ruiz, E.
name: Saxton, R.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: A tidal disruption event (TDE) occurs when a star is destroyed by a supermassive black hole. Broadband radio spectral observations of TDEs trace the emission from any outflows or jets that are ejected from the vicinity of the supermassive black hole. However, radio detections of TDEs are rare, with less than 20 published to date, and only 11 with multi-epoch broadband coverage. Here we present the radio detection of the TDE AT2020vwl and our subsequent radio monitoring campaign of the outflow that was produced, spanning 1.5 years post-optical flare. We tracked the outflow evolution as it expanded between $10^{16}$ cm to $10^{17}$ cm from the supermassive black hole, deducing it was non-relativistic and launched quasi-simultaneously with the initial optical detection through modelling the evolving synchrotron spectra of the event. We deduce that the outflow is likely to have been launched by material ejected from stream-stream collisions (more likely), the unbound debris stream, or an accretion-induced wind or jet from the supermassive black hole (less likely). AT2020vwl joins a growing number of TDEs with well-characterised prompt radio emission, with future timely radio observations of TDEs required to fully understand the mechanism that produces this type of radio emission in TDEs.
description: 15 pages, 9 figures, accepted for publication in MNRAS
Additional file 2 of Geographically extensive larval surveys reveal an unexpected scarcity of primary vector mosquitoes in a region of persistent malaria transmission in western Zambia
Creators: name: Cross, Dónall Eoin
name: Thomas, Chris
name: McKeown, Niall
name: Siaziyu, Vincent
name: Healey, Amy
name: Willis, Tom
name: Singini, Douglas
name: Liywalii, Francis
name: Silumesii, Andrew
name: Sakala, Jacob
name: Smith, Mark
name: Macklin, Mark
name: Hardy, Andy J.
name: Shaw, Paul W.
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Ecology

description: Additional file 2: Figure S1. Maximum likelihood phylogenetic tree of cytochrome c oxidase I (COI) sequences from Anopheles larvae sampled in western Zambia.
Discovery of a new Soft Gamma Repeater, SGR J1833-0832
Creators: name: Gogus, E.
name: Cusumano, G.
name: Levan, A. J.
name: Kouveliotou, C.
name: Sakamoto, T.
name: Barthelmy, S. D.
name: Campana, S.
name: Kaneko, Y.
name: Stappers, B. W.
name: de Ugarte-Postigo, A.
name: Strohmayer, T.
name: Palmer, D. M.
name: Gelbord, J.
name: Burrows, D. N.
name: van der Horst, A. J.
name: Munoz-Darias, T.
name: Gehrels, N.
name: Hessels, J. W. T.
name: Kamble, A. P.
name: Wachter, S.
name: Wiersema, K.
name: Wijers, R. A. M. J.
name: Woods, P. M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: On 2010 March 19, the Swift/Burst Alert Telescope triggered on a short burst with temporal and spectral characteristics similar to those of Soft Gamma Repeater (SGR) bursts. The source location, however, did not coincide with any known SGR. Subsequent observations of the source error box with the Swift/X-ray Telescope and the Rossi X-ray Timing Explorer (RXTE) led to the discovery of a new X-ray source, with a spin period of 7.56 s, confirming SGR J1833-0832 as a new magnetar. Based on our detailed temporal and spectral analyses, we show that the new SGR is rapidly spinning down (4 x 10^{-12} s/s) and find an inferred dipole magnetic field of 1.8 x 10^{14} G. We also show that the X-ray flux of SGR J1833-0832 remained constant for approximately 20 days following the burst and then started to decline. We derived an accurate location of the source with the Chandra X-ray Observatory and we searched for a counterpart in deep optical and infrared observations of SGR J1833-0832, and for radio pulsed emission with the Westerbork Radio Synthesis Telescope. Finally, we compare the spectral and temporal properties of the source to the other magnetar candidates.
description: Published in the ApJ, 718, 331-339 (2010)
The shared evaporation history of three sub-Neptunes spanning the radius-period valley of a Hyades star
Creators: name: Fernández, Jorge Fernández
name: Wheatley, Peter J.
name: King, George W.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We model the evaporation histories of the three planets around K2-136, a K-dwarf in the Hyades open cluster with an age of 700 Myr. The star hosts three transiting planets, with radii of 1.0, 3.0 and 1.5 Earth radii, where the middle planet lies above the radius-period valley and the inner and outer planets are below. We use an XMM-Newton observation to measure the XUV radiation environment of the planets, finding that the X-ray activity of K2-136 is lower than predicted by models but typical of similar Hyades members. We estimate the internal structure of each planet, and model their evaporation histories using a range of structure and atmospheric escape formulations. While the precise X-ray irradiation history of the system may be uncertain, we exploit the fact that the three planets must have shared the same history. We find that the Earth-sized K2-136b is most likely rocky, with any primordial gaseous envelope being lost within a few Myr. The sub-Neptune, K2-136c, has an envelope contributing 1-1.7% of its mass that is stable against evaporation thanks to the high mass of its rocky core, whilst the super-Earth, K2-136d, must have a mass at the upper end of the allowed range in order to retain any of its envelope. Our results are consistent with all three planets beginning as sub-Neptunes that have since been sculpted by atmospheric evaporation to their current states, stripping the envelope from planet b and removing most from planet d whilst preserving planet c above the radius-period valley.
description: Accepted for publication on MNRAS
Modeling Settlement Systems in a Dynamic Environment: Case Studies from Mesopotamia
Creators: name: T.J. Wilkinson
name: McG. Gibson
name: J. Christiansen
name: Widell, Magnus
name: D. Schloen
name: N. Kouchoukos
name: C. Woods
name: J. Sanders
name: K.-L. Simunich
name: M. Altaweel
name: J. Ur
name: C. Hritz
name: J. Lauinger
name: T. Paulette
name: J. Tenney
Publisher: name: figshare
Year: 2020
Subjects: Archaeology

description: The Model-Based Archaeology of Socionatural Systems. T. A. Kohler, & S. Van der Leeuw (eds.), Santa Fe: School of Advanced Research, 2007: 175-208
Effects of prenatal alcohol exposure on social behavior neurobiology in rats
Creators: name: Holman, Parker J.
Publisher: name: University of British Columbia
Year: 2020

description: Estimates indicate a 1-5% prevalence of Fetal Alcohol Spectrum Disorders (FASD) among American children, making prenatal alcohol exposure (PAE) a leading cause of developmental disability in North America. Among the cognitive, physiological and behavioral impairments associated with PAE in the clinical/pre-clinical literature, lifelong social behavior deficits serve as a unifying feature across the entire spectrum. Impaired social behavior in individuals with FASD has widespread implications for function in other domains and may contribute to difficulties within school, social rejection, trouble with the law, and later mental health problems. Importantly, early-life adversity (ELA) can also modulate social behavior development, and individuals with PAE are more likely to experience ELA. However, few studies have assessed the interactive effects of these two insults on social behavior development. Maturational changes associated with adolescence have significant consequences for social behavior development, making adolescence a unique period of increased vulnerability to social behavior dysfunction. My dissertation research focuses on establishing a comprehensive neurobehavioral profile of adolescent social behavior in a rat model of PAE. Our assessments of play behavior, social preference and recognition memory, as well as central oxytocin and vasopressin systems, critical modulators of social behavior function, indicate PAE impairs adolescent social behavior – especially with increasing complexity of the social context – and behavioral impairments are associated with altered neural activity and development of the oxytocin/vasopressin systems. Specifically, we found that PAE disrupts sustained play bouts with unexposed playmates, impairs social recognition memory – particularly in males – and alters oxytocin receptor expression and neural activity (c-fos expression) in limbic and forebrain regions important for social behavior function. Moreover, ELA generally exacerbated and extended the effects of PAE, highlighting the ability of the early environment to mediate outcomes of PAE and power of animal models to interrogate this relationship. The relevance of the current research stems from the need for establishing a more specific social neurobehavioral profile that could support the development of strategies for earlier diagnoses and more targeted interventions for FASD. Taken together, our results highlight that PAE directly impacts multiple aspects of social behavior and its underlying neurobiology and identifies potential targets for therapeutic intervention.
Confident Detection of Doubly-Ionized Thorium in the Extreme Ap Star CPD-62 2717
Creators: name: Chojnowski, S. Drew
name: Hubrig, Swetlana
name: Nidever, David L.
name: Niemczura, Ewa
name: Labadie-Bartz, Jonathan
name: Mathys, Gautier
name: Hasselquist, Sten
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: Despite the universe containing primordial thorium (Th) of sufficient abundance to appear in stellar spectra, detection of Th has to date been tentative and based on just a few weak and blended lines. Here, we present convincing evidence not only for the first Th detection in a magnetic chemically peculiar Ap star but also for the first detection of Th III in a stellar spectrum. CPD-62 2717 was initially recognized as a highly-magnetized Ap star thanks to resolved magnetically split lines captured in $H$-band spectra from the SDSS/APOGEE survey. The star was subsequently pinpointed as extraordinarily peculiar when careful inspection of the $H$-band line content revealed the presence of five lines of Th III, none of which are detected in the other $\sim1500$ APOGEE-observed Ap stars. Follow-up with the VLT+UVES confirmed a similarly peculiar optical spectrum featuring dozens of Th III lines, among other peculiarities. Unlike past claims of Th detection, and owing to high-resolution observations of the strong ($\sim$8$-$12$\,$kG) magnetic field of CPD-62 2717, the detection of Th III can in this case be supported by matches between the observed and theoretical magnetic splitting patterns. Comparison of CPD-62 2717 to stars for which Th overabundances have been previously reported (e.g., Przybylski's Star) indicate that only for CPD-62 2717 is the Th detection certain. Along with the focus on Th III, we use time series measurements of the magnetic field modulus to constrain the rotation period of CPD-62 2717 to $\sim$4.8 years, thus establishing it as a new example of a super-slowly-rotating Ap star.
Representations of the Dirac wave function in a curved spacetime
Creators: name: Arminjon, Mayeul
name: Reifler, Frank
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The Dirac wave function in a curved spacetime is usually defined as a quadruplet of scalar fields. It can alternatively be defined as a four-vector field. We describe these two representations in a common geometrical framework and we prove theorems that relate together the different representations and the different choices of connections. In particular, the standard Dirac equation in a curved spacetime, with any choice of the tetrad field, is equivalent to a particular realization of the Dirac equation for a vector wave function, in the same spacetime.
description: 14 pages (standard 12pt article). Text of a talk given at DICE2010: "Space-Time-Matter - current issues in quantum mechanics and beyond" (Castiglioncello, Italy, September 13-17, 2010)
Algebraic Torsion in Higher-Dimensional Contact Manifolds
Creators: name: Moreno, Agustin
Publisher: name: Humboldt-Universität zu Berlin
Year: 2019
Subjects: subject: Kontaktmannigfaltigkeiten
subject: Symplektische Feldtheorie
subject: Algebraische Torsion
subject: Symplektische Mannigfaltigkeiten
subject: Contact Manifolds
subject: Symplectic Manifolds
subject: Algebraic Torsion
subject: Symplectic Field Theory
subject: 510 Mathematik
subject: SK 370

description: Wir konstruieren Beispiele von Kontaktmannigfaltigkeiten in jeder ungeraden Dimension, welche endliche nicht-triviale algebraische Torsion (im Sinne von Latschev-Wendl) aufweisen, somit straff sind und keine starke symplektische Füllung haben. Wir beweisen, dass Giroux Torsion algebraische 1-Torsion in jeder ungeraden Dimension impliziert, womit eine Vermutung von Massot-Niederkrüger-Wendl bewiesen wird. Wir konstruieren unendlich viele nicht diffeomorphe Beispiele von 5-dimensionalen Kontaktmannigfaltigkeiten, welche straff sind, keine starke symplektische Füllung zulassen und keine Giroux Torsion haben. Wir erhalten Obstruktionen für symplektische Kobordismen, ohne für deren Beweis die SFT Maschinerie zu verwenden. Wir geben eine provisorische Definition eines spinalen offenen Buchs in höherer Dimension an, basierend auf der vom 3-dimensionalen Fall aus Lisi-van Horn Morris-Wendl. In einem Anhang geben wir in gemeinsamer Autorenschaft mit Richard Siefring eine wesentliche Zusammenfassung der Schnitttheorie für punktierte holomorphe Kurven und Hyperflächen an, welche die 3-dimensionalen Resultate von Siefring auf höhere Dimensionen verallgemeinert. Mittels der Schnitttheorie erhalten wir eine Anwendung für holomorphe Blätterungen von Kodimension zwei, die wir benutzen um das Verhalten von holomorphem Kurven in unseren Beispielen einzuschränken.
description: We construct examples in any odd dimension of contact manifolds with finite and non-zero algebraic torsion (in the sense of Latschev-Wendl), which are therefore tight and do not admit strong symplectic fillings. We prove that Giroux torsion implies algebraic 1-torsion in any odd dimension, which proves a conjecture of Massot-Niederkrüger-Wendl. We construct infinitely many non-diffeomorphic examples of 5-dimensional contact manifolds which are tight, admit no strong fillings, and do not have Giroux torsion. We obtain obstruction results for symplectic cobordisms, for which we give a proof not relying on SFT machinery. We give a tentative definition of a higher-dimensional spinal open book decomposition, based on the 3-dimensional one of Lisi-van Horn Morris-Wendl. An appendix written in co-authorship with Richard Siefring gives a basic outline of the intersection theory for punctured holomorphic curves and hypersurfaces, which generalizes his 3-dimensional results to higher dimensions. From the intersection theory we obtain an application to codimension-2 holomorphic foliations, which we use to restrict the behaviour of holomorphic curves in our examples.
Calcium Carbonate Precipitating Cultivable Bacteria from Different Speleothems of Karst Caves
Creators: name: Lange-Enyedi, Nóra Tünde
name: Németh, Péter
name: Borsodi, Andrea K.
name: Halmy, Réka
name: Czuppon, György
name: Kovács, Ivett
name: Leél-Őssy, Szabolcs
name: Demény, Attila
name: Makk, Judit
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Inorganic Chemistry

description: The aim of the study was to reveal and compare the microbiota of different carbonate speleothems from two different epigenic karst regions (Baradla and Csodabogyós caves) in Hungary. Stalagmites, stalactites, soda straws, moonmilks, cave wall surfaces and dripping waters were sampled and plated on subsurface-environment imitating culture media containing low amount of nutrients, minerals and extract of cave sediments. Diverse oligo-heterotrophic bacterial community composition (192 different species in the phyla Actinobacteria, Proteobacteria, Firmicutes and Bacteroidetes) – with hitherto unknown cave bacteria – varied in the samples. The CaCO3 precipitating capacity of 126 bacterial strains from different taxonomical positions was tested on solid B4 medium. 75% of the strains precipitated crystals with various morphology in the colonies and metabolic tests showed that higher alkalizing activity led to higher rate of precipitation in the mucoid colonies. Scanning electron microscopy, high-resolution transmission electron microscopy and X-ray diffraction analysis indicated that the precipitates were dominated by calcite, and nanosize vaterite was identified for Paeniglutamicibacter kerguelensis (strain BaSD-225). Our study suggests that CaCO3 precipitated by proteolytic bacteria are widespread in the biofilms in karst caves and these bacteria can actively contribute to CaCO3 formation through alkalizing their microenvironment.
On the evolution of the size of Lyman alpha halos across cosmic time: no change in the circumgalactic gas distribution when probed by line emission
Creators: name: Runnholm, Axel
name: Hayes, Matthew J.
name: Lin, Yu-Heng
name: Melinder, Jens
name: Scarlata, Claudia
name: Adamo, Angela
name: Augustin, Ramona
name: Bik, Arjan
name: Blaizot, Jérémy
name: Cannon, John M.
name: Cantalupo, Sebastiano
name: Garel, Thibault
name: Gronke, Max
name: Herenz, Edmund C.
name: Leclercq, Floriane
name: Östlin, Göran
name: Peroux, Celine
name: Rasekh, Armin
name: Rutkowski, Michael J.
name: Verhamme, Anne
name: Wisotzki, Lutz
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Lyman $α$ (Ly$α$) is now routinely used as a tool for studying high-redshift galaxies and its resonant nature means it can trace neutral hydrogen around star-forming galaxies. Integral field spectrograph measurements of high-redshift Ly$α$ emitters indicate that significant extended Ly$α$ halo emission is ubiquitous around such objects. We present a sample of redshift 0.23 to 0.31 galaxies observed with the Hubble Space Telescope selected to match the star formation properties of high-$z$ samples while optimizing the observations for detection of low surface brightness Ly$α$ emission. The Ly$α$ escape fractions range between 0.7\% and 37\%, and we detect extended Ly$α$ emission around six out of seven targets. We find Ly$α$ halo to UV scale length ratios around 6:1 which is marginally lower than high-redshift observations, and halo flux fractions between 60\% and 85\% -- consistent with high-redshift observations -- when using comparable methods. However, our targets show additional extended stellar UV emission: we parametrize this with a new double exponential model. We find that this parametrization does not strongly affect the observed Ly$α$ halo fractions. We find that deeper H$α$ data would be required to firmly determine the origin of Ly$α$ halo emission, however, there are indications that H$α$ is more extended than the central FUV profile, potentially indicating conditions favorable for the escape of ionizing radiation. We discuss our results in the context of high-redshift galaxies, cosmological simulations, evolutionary studies of the circumgalactic medium in emission, and the emission of ionizing radiation.
description: 20 page, 14 figures, 6 tables. Accepted for publication in MNRAS
Additional file 1 of SicknessMiner: a deep-learning-driven text-mining tool to abridge disease-disease associations
Creators: name: Rosário-Ferreira, Nícia
name: Guimarães, Victor
name: Costa, Vítor S.
name: Moreira, Irina S.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Molecular Biology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Marine Biology
subject: Cancer

description: Additional file 1. Table 1 - SicknessMiner full results (organized by decreasing number of co-mentions).
Integrating urban road safety and sustainable transportation policy through the hierarchy of hazard controls
Creators: name: McLeod, Sam
name: Curtis, Carey
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Governments globally have endorsed Vision Zero, declaring that no person should be killed or permanently injured on public roads. Concurrently, the wider social, public health, and environmental implications of urban structure and transport choices have gained intense policy attention, as cities aim to transition toward sustainable accessibility. This is especially the case as research reveals a range of counter-intuitive road safety dynamics; many narrow approaches to road safety management appear to trigger adverse risk compensation and negative externality effects, potentially running counter to broader sustainability goals. Recognizing the urgent need to integrate road safety with broader urban sustainability measures, this paper presents a review of road safety literature using the established Hazard Control Hierarchy. In doing so, we identify and categorize opportunities to more effectively combine Vision Zero with broader sustainable accessibility policy objectives. We synthesize the literature against the Hazard Control Hierarchy to devise a framework to more effectively integrate the work of professional disciplines which shape the safety and sustainability of the urban built environment.
title: Ð¡ÑÐ°Ð²Ð½Ð¸ÑÐµÐ»ÑÐ½ÑÐ¹ Ð°Ð½Ð°Ð»Ð¸Ð· Ð¼ÐµÑÐ¾Ð´Ð¾Ð² Ð¼Ð°ÑÐ¸Ð½Ð½Ð¾Ð³Ð¾ Ð¾Ð±ÑÑÐµÐ½Ð¸Ñ Ð´Ð»Ñ Ð¾Ð±Ð½Ð°ÑÑÐ¶ÐµÐ½Ð¸Ñ ÐºÐ¸Ð±ÐµÑÐ±ÑÐ»Ð»Ð¸Ð½Ð³Ð° Ð² Twitter
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: A comparative analysis of machine learning techniques for cyberbullying detection on twitter
Creators: name: ÐÑÐ°ÑÐ¾Ð»Ð¾Ð²Ð°, Ð®Ð»Ð¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2022
Subjects: Ð¾Ð±Ð½Ð°ÑÑÐ¶ÐµÐ½Ð¸Ðµ ÐºÐ¸Ð±ÐµÑÐ·Ð°Ð¿ÑÐ³Ð¸Ð²Ð°Ð½Ð¸Ñ
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Ð¼Ð°ÑÐ¸Ð½Ð½Ð¾Ðµ Ð¾Ð±ÑÑÐµÐ½Ð¸Ðµ
cyberscarry detection
control of cyberbulling in social networks
machine learning

description: Ð¢ÐµÐ¼Ð° Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ: Â«Ð¡ÑÐ°Ð²Ð½Ð¸ÑÐµÐ»ÑÐ½ÑÐ¹ Ð°Ð½Ð°Ð»Ð¸Ð· Ð¼ÐµÑÐ¾Ð´Ð¾Ð² Ð¼Ð°ÑÐ¸Ð½Ð½Ð¾Ð³Ð¾ Ð¾Ð±ÑÑÐµÐ½Ð¸Ñ Ð´Ð»Ñ Ð¾Ð±Ð½Ð°ÑÑÐ¶ÐµÐ½Ð¸Ñ ÐºÐ¸Ð±ÐµÑÐ±ÑÐ»Ð»Ð¸Ð½Ð³Ð° Ð² TwitterÂ». ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¾ÑÐ½Ð¾ÑÐ¸ÑÑÑ Ðº ÑÑÐµÑÐµ Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð³Ð¾ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð´Ð°Ð½Ð½ÑÑ. Ð Ð¿ÐµÑÐ²Ð¾Ð¹ Ð³Ð»Ð°Ð²Ðµ ÑÐ¾Ð´ÐµÑÐ¶Ð¸ÑÑÑ Ð¾Ð¿Ð¸ÑÐ°Ð½Ð¸Ðµ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ Ð¼ÐµÑÐ¾Ð´Ð¾Ð² Ð¼Ð°ÑÐ¸Ð½Ð½Ð¾Ð³Ð¾ Ð¾Ð±ÑÑÐµÐ½Ð¸Ðµ, Ð°Ð½Ð°Ð»Ð¸Ð· Ð½Ð°ÑÑÐ½ÑÑ ÑÐ°Ð±Ð¾Ñ Ð½Ð° ÑÐµÐ¼Ñ Ð¾Ð±Ð½Ð°ÑÑÐ¶ÐµÐ½Ð¸Ñ ÐºÐ¸Ð±ÐµÑÐ±ÑÐ»Ð»Ð¸Ð½Ð³Ð°. Ð Ð¿Ð¾ÑÐ»ÐµÐ´ÑÑÑÐ¸Ñ Ð³Ð»Ð°Ð²Ð°Ñ Ð¾Ð¿Ð¸ÑÑÐ²Ð°ÐµÑÑÑ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ñ ÑÐ°Ð±Ð¾ÑÑ ÐºÐ»Ð°ÑÑÐ¸ÑÐ¸ÐºÐ°ÑÐ¾ÑÐ¾Ð², Ð° ÑÐ°ÐºÐ¶Ðµ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ð° ÑÐµÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ñ ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½Ð¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð½Ð°Ð±Ð¾ÑÐ° Ð´Ð°Ð½Ð½ÑÑ, Ñ Ð¾Ð¿Ð¸ÑÐ°Ð½Ð¸ÐµÐ¼ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ¾Ð² ÑÐ°Ð±Ð¾ÑÑ ÐºÐ°Ð¶Ð´Ð¾Ð³Ð¾ ÐºÐ»Ð°ÑÑÐ¸ÑÐ¸ÐºÐ°ÑÐ¾ÑÐ° Ð¸ Ð°Ð½Ð°Ð»Ð¸Ð·Ð¾Ð¼ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ Ð´Ð°Ð½Ð½ÑÑ.
description: The subject of the graduate qualification work is Â«A Comparative Analysis of Machine Learning Techniques for Cyberbullying Detection on TwitterÂ». This work belongs to the field of informational data analysis. The first chapter contains the main descriptions of the methods of machine research, analysis of scientific papers on the topic of detecting cyberbullying. In the consideration of the chapter on computing the algorithms of the classifiers, the implementation of their own dataset analysis model is also presented, with a description of the results of each classifier and data income analysis.
Therapeutic Regime to Ameliorate Quality of Life in Patients with Parkinson’s Disease
Creators: name: Sharma, Nidhi
name: Kaur, Manpreet
name: Goyat, Anju
name: Sharma, Priyanka
name: Srivastav, Adarsh Kumar
name: Agrawal, B. K.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Space Science
subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: As various physiotherapeutic approaches are available to improve either motor or non-motor symptoms, the study was conducted for evaluating the effectiveness of Institution based Rehabilitation protocol to improve quality of life in patients with Parkinson’s Disease (IRQOL-PD) to focus on both types of symptoms simultaneously. The non-randomized controlled trial pilot study recruited 42 participants with Parkinson’s disease (age between 35-80 years) for 5 weeks of treatment sessions to evaluate the validity, reliability, and effectiveness of the designed protocol. The Unified Parkinson’s Disease Rating Scale (UPDRS) and Hoehn and Yahr scale (H&Y scale) were used as outcome measures. The IRQOL-PD with content validity index (0.9), intra-rater reliability (Intra-class Co-relation Coefficient = 1 and Cronbach’s alpha = 1) and inter-reliability (Pearson correlation coefficient > 0.90 and <0.50 for UPDRS and H&Y respectively) established the statistical and clinical improvement in experimental group related to UPDRS grading (p-value = 0.008). IRQoL – PD protocol was effective to delay the progression of disease without any requirement of special equipment.
Photospheric Hanle diagnostic of weak magnetic dipoles in stars
Creators: name: Ariste, A. López
name: Ramos, A. Asensio
name: Fernández, C. González
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Diagnostic techniques for stellar magnetic fields based upon spectropolarimetry. We propose and explore a new technique based upon the linear polarization emitted in Hanle-sensitive lines in disk-integrated stars where a dipolar magnetic field breaks the rotational symmetry of the resonance scattering polarization. A star with a simple dipolar field and a 1-0 spectral line are used to compute polarization amplitudes and angles.Predicted amplitudes are low but within reach of present instruments. A new application of the Hanle effect is proposed and analyzed, a tool that allows measuring of some of the weakest stellar magnetic fields.
description: 6 pages, 3 figures. Accepted for publication in A&A
Impact of turbulence intensity and fragmentation velocity on dust particle size evolution and non-ideal magnetohydrodynamics effects
Creators: name: Kawasaki, Yoshihiro
name: Machida, Masahiro N.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We investigate the influence of dust particle size evolution on non-ideal magnetohydrodynamic effects during the collapsing phase of star-forming cores, taking both the turbulence intensity in the collapsing cloud core and the fragmentation velocity of dust particles as parameters. When the turbulence intensity is small, the dust particles do not grow significantly, and the non-ideal MHD effects work efficiently in high-density regions. The dust particles rapidly grow in a strongly turbulent environment, while the efficiency of non-ideal MHD effects in such an environment depends on the fragmentation velocity of the dust particles. When the fragmentation velocity is small, turbulence promotes coagulation growth and collisional fragmentation of dust particles, producing small dust particles. In this case, the adsorption of charged particles on the dust particle surfaces becomes efficient and the abundance of charged particles decreases, making non-ideal MHD effects effective at high densities. On the other hand, when the fragmentation velocity is high, dust particles are less likely to fragment, even if the turbulence is strong. In this case, the production of small dust particles become inefficient and non-ideal MHD effects become less effective. We also investigate the effect of the dust composition on the star and disk formation processes. We constrain the turbulence intensity of a collapsing core and the fragmentation velocity of dust for circumstellar disk formation due to the dissipation of the magnetic field.
description: Accepted for publication in MNRAS. 15 pages, 13 figures
Discovery of Two Cyclotron Resonance Scattering Features in X-ray Pulsar Cen X-3 by Insight-HXMT
Creators: name: Yang, W.
name: Wang, W.
name: Liu, Q.
name: Chen, X.
name: Wu, H. J.
name: Tian, P. F.
name: Chen, J. S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the results of the neutron star X-ray binary system Cen X-3 performed by $Insight$-HXMT with two observations during 2017 and 2018. During these two observations, the source reached a X-ray luminosity of $\sim 10^{38}$ erg s$^{-1}$ from 2 -- 105 keV. The analysis of the broadband X-ray spectrum reports the presence of two cyclotron resonance scattering features (CRSFs) with the fundamental line at $\sim$ 28 keV and the harmonic line at $\sim 47 $ keV. The multiple lines exist by fittings with different continuum models, like the absorbed NPEX model and a power-law with high energy exponential cutoff model. This is the first time that both fundamental and harmonic lines are detected in Cen X-3. We also show evidence of two cyclotron lines in the phase-resolved spectrum of Cen X-3. The CRSF and continuum spectral parameters show evolution with the pulse profile, and the two line centroid energy ratio does not change significantly and locates in a narrow value range of $1.6-1.7$ over the pulse phase. The implications of the discovering two cyclotron absorption features and phase-resolved spectral properties are discussed.
description: 8 pages, MNRAS, 2023, 519, 5402-5409
Millihertz X-ray variability during the 2019 outburst of black hole candidate Swift~J1357.2$-$0933
Creators: name: Beri, Aru
name: Gaur, Vishal
name: Charles, Phil
name: Williams, David R. A.
name: Jahanvi
name: Paice, John A.
name: Gandhi, Poshak
name: Altamirano, Diego
name: Fender, Rob
name: Green, David A.
name: Titterington, David
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Swift J1357.2$-$0933 is a black-hole candidate X-ray transient, which underwent its third outburst in 2019, during which several multi-wavelength observations were carried out.~Here, we report results from the \emph{Neil Gehrels Swift} and \emph{NICER} observatories and radio data from \emph{AMI}.~For the first time,~millihertz quasi-periodic X-ray oscillations with frequencies varying between ${\sim}$~1--5~$\rm{mHz}$ were found in \emph{NICER} observations and a similar feature was also detected in one \emph{Swift}--\textsc{XRT} dataset.~Our spectral analysis indicate that the maximum value of the measured X-ray flux is much lower compared to the peak values observed during the 2011 and 2017 outbursts.~This value is ${\sim}$~100 times lower than found with \emph{MAXI} on MJD~58558 much ($\sim$~68 days) earlier in the outburst, suggesting that the \emph{Swift} and \emph{NICER} fluxes belong to the declining phase of the 2019 outburst.~An additional soft component was detected in the \textsc{XRT} observation with the highest flux level, but at a relatively low $L_{\rm X}$~$\sim$~$3{\times}10^{34}~(d/{\rm 6~kpc)}^2\rm{erg}~\rm{s}^{-1}$, and which we fitted with a disc component at a temperature of $\sim 0.17$~keV.~The optical/UV magnitudes obtained from \emph{Swift}--\textsc{UVOT} showed a correlation with X-ray observations, indicating X-ray reprocessing to be the plausible origin of the optical and UV emission.~However, the source was not significantly detected in the radio band.~There are currently a number of models that could explain this millihertz-frequency X-ray variability; not least of which involves an X-ray component to the curious dips that, so far, have only been observed in the optical.
description: 14 pages, Accepted for publication in MNRAS
Effectiveness of a Multi-Modal Exercise Program Incorporating Plyometric and Balance Training in Children With Hemiplegic Cerebral Palsy: A Three-Armed Randomized Clinical Trial
Creators: name: Elnaggar, Ragab K.
name: Mahmoud, Waleed S.
name: Alsubaie, Saud F.
name: El-Nabie, Walaa A. Abd
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 60506 Virology

description: To evaluate the effectiveness of a multimodal exercise program incorporating plyometric and balance training on muscle strength and postural stability in children with spastic hemiplegic cerebral palsy (SHCP). A total of 57 children with SHCP were enrolled in the study and randomly allocated into three treatment-based groups: plyometric exercises (PLYO group; n = 19), balance exercises (BAL group, n = 19), and combined plyometric and balance exercises (PLYO-BAL group; n = 19). The maximum isometric muscle strength (IMSmax) and postural stability [anterior-posterior stability index (AP-SI), mediolateral stability index (ML-SI), and overall stability index (O-SI)] were measured pre- and post-intervention. By applying the intention-to-treat analysis, the PLYO-BAL group showed greater post-treatment IMSmax than the PLYO and BAL groups for the quadriceps (p=.03 and p=.0002 respectively), hamstrings (p=.018 and pp=.006 and ppp=.0001 respectively), ML-SI (p=.001 and p=.015 respectively), and O-SI (p=.011 and p=.04 respectively). Incorporation of plyometric and balance exercises in a multimodal rehabilitation program could be an important consideration for enhancing muscle strength and boosting postural stability in children with SHCP.
Analysis of KATRIN data using Bayesian inference
Creators: name: Riis, Anna Sejersen
name: Hannestad, Steen
name: Weinheimer, Christian
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: The KATRIN (KArlsruhe TRItium Neutrino) experiment will be analyzing the tritium beta-spectrum to determine the mass of the neutrino with a sensitivity of 0.2 eV (90% C.L.). This approach to a measurement of the absolute value of the neutrino mass relies only on the principle of energy conservation and can in some sense be called model-independent as compared to cosmology and neutrino-less double beta decay. However by model independent we only mean in case of the minimal extension of the standard model. One should therefore also analyse the data for non-standard couplings to e.g. righthanded or sterile neutrinos. As an alternative to the frequentist minimization methods used in the analysis of the earlier experiments in Mainz and Troitsk we have been investigating Markov Chain Monte Carlo (MCMC) methods which are very well suited for probing multi-parameter spaces. We found that implementing the KATRIN chi squared function in the COSMOMC package - an MCMC code using Bayesian parameter inference - solved the task at hand very nicely.
description: 28 pages, 12 figures
Orientation of the spins of galaxies in the Local volume
Creators: name: Karachentsev, I. D.
name: Zozulia, V. D.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We estimated the angular momentum, $J$, of $720$ galaxies in the Local Volume with distances $r < 12$ Mpc. The distribution of the average angular momentum along the Hubble sequence has a maximum at the morphological type $T= 4$ (Sbc), while the dispersion of the $J$-values for galaxies is minimal. Among the Local Volume population, 27 elite spiral galaxies stand out, with an angular momentum greater than 0.15 of the Milky Way, $J > 0.15 J_{MW}$, making the main contribution ($ > 90\%$) to the total angular momentum of galaxies in the considered volume. Using observational data on the kinematics and structure of these galaxies, we determined the direction of their spins. We present the first map of the distribution of the spins of 27 nearby massive spiral galaxies in the sky and note that their pattern does not exhibit significant alignment with respect to the Local Sheet plane. The relationship between the magnitude of the angular momentum and stellar mass of the local galaxies is well represented by a power law with an exponent of ($5/3$) over an interval of $6$ orders of magnitude of the mass of galaxies.
description: 8 pages, 9 figures, accepted in MNRAS
Additional file 1 of Long term impact of the WHI studies on information-seeking and decision-making in menopause symptoms management: a longitudinal analysis of questions to a medicines call centre
Creators: name: Natari, Rifani B.
name: Hollingworth, Samantha A.
name: Clavarino, Alexandra M.
name: Dingle, Kaeleen D.
name: McGuire, Treasure M.
Publisher: name: figshare
Year: 2021
Subjects: subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 1. Call characteristics comparison. Table 1. Comparison of call characteristics between menopause-related and the rest of calls. Table 2. Comparison of caller characteristics between Queensland and rest of Australia.
On quantum stochastic differential equations
Creators: name: Lindsay, J. Martin
name: Skalski, Adam G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Operator Algebras (math.OA)
subject: Mathematical Physics (math-ph)
subject: Functional Analysis (math.FA)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 81S25, 46L53, 46L07

description: Existence and uniqueness theorems for quantum stochastic differential equations with nontrivial initial conditions are proved for coefficients with completely bounded columns. Applications are given for the case of finite-dimensional initial space or, more generally, for coefficients satisfying a finite localisability condition. Necessary and sufficient conditions are obtained for a conjugate pair of quantum stochastic cocycles on a finite-dimensional operator space to strongly satisfy such a quantum stochastic differential equation. This gives an alternative approach to quantum stochastic convolution cocycles on a coalgebra.
description: 20 pages
Integrating urban road safety and sustainable transportation policy through the hierarchy of hazard controls
Creators: name: McLeod, Sam
name: Curtis, Carey
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Governments globally have endorsed Vision Zero, declaring that no person should be killed or permanently injured on public roads. Concurrently, the wider social, public health, and environmental implications of urban structure and transport choices have gained intense policy attention, as cities aim to transition toward sustainable accessibility. This is especially the case as research reveals a range of counter-intuitive road safety dynamics; many narrow approaches to road safety management appear to trigger adverse risk compensation and negative externality effects, potentially running counter to broader sustainability goals. Recognizing the urgent need to integrate road safety with broader urban sustainability measures, this paper presents a review of road safety literature using the established Hazard Control Hierarchy. In doing so, we identify and categorize opportunities to more effectively combine Vision Zero with broader sustainable accessibility policy objectives. We synthesize the literature against the Hazard Control Hierarchy to devise a framework to more effectively integrate the work of professional disciplines which shape the safety and sustainability of the urban built environment.
Additional file 1 of Socioeconomic inequalities in health behaviors: exploring mediation pathways through material conditions and time orientation
Creators: name: Mudd, Andrea L.
name: van Lenthe, Frank J.
name: Verra, Sanne E.
name: Bal, Michèlle
name: Kamphuis, Carlijn B. M.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. Details about the GLOBE sample selection. In this additional file, the GLOBE sampling strategy and selection are described in detail.
The effect of hydrogen substitution on the real-world CO₂, NOx, and PM emissions of a heavy-duty diesel truck
Creators: name: Meiklejohn, Jeffrey Dean
Publisher: name: University of British Columbia
Year: 2020

description: Hydrogen substitution can reduce the diesel consumption and CO₂ output of diesel engines. This thesis investigates its effect on the real-world, on-road emissions of CO₂, NOx and particulate matter (PM) from a heavy-duty diesel truck. Testing was conducted on a Class 8 truck fitted with a 13 L common-rail direct-injection (CDI) engine and a supplemental intake manifold-injection hydrogen fuel system. The peak hydrogen energy substitution rate was 40%, while the observed average was 24%. The truck operated with Gross Combined Vehicle Weights (GCVWs) between 20,000 kg and 60,000 kg. A Portable Emissions Measurement System (PEMS) was built and was used to sample engine-out, pre-aftertreatment exhaust gases. Torque was measured on the driveshaft with a wireless transducer, CO₂ was measured via non-dispersive infrared sensor, NOx was measured with an electrochemical sensor, and PM was measured via light scattering and gravimetric methods. Data was logged at 10 Hz by a data acquisition system (DAQ) that was also connected to the truck’s J1939 communication networks. From this data, detailed emission maps were generated which showed the varied emissions across the engine’s speed/load operating range. For accurate comparison on-road testing was conducted in both hydrogen/diesel and plain diesel fueling modes, totaling over 2500 kilometers logged. Overall CO₂ emissions decreased by 25±1%, which was approximately equal to the hydrogen displacement. Engine-out NOx emissions increased by 10±1% and engine-out PM emissions increased by 2±3%. For PM measurement, high correlation (R2 = 0.9) was found between integration of the instantaneous light scattering and the total gravimetric measurement methods. Overall thermal efficiency was virtually unchanged between the two fueling modes, with small decrease noted at low loads and small increase at high loads. Increased exhaust gas temperature (EGT) was measured while operating in hydrogen/diesel mode and increased in-cylinder temperature is suspected as the cause of the increased NOx emissions. Preliminary analysis of the post-aftertreatment NOx showed a decrease of 36±2% in hydrogen/diesel mode versus the diesel baseline, suggesting that the increased engine-out NOx does not increase tailpipe emissions. Furthermore, the consumption of diesel exhaust fluid (DEF) only increased by 3±3% in hydrogen/diesel mode, suggesting a higher conversion efficiency.