cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Sonnenfleckenzeichnung Nr. 127.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 01.06.1995, 09:45, erstellt von Sergio Cortesi
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1995

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Additional file 1 of Platelet activation in adult HIV-infected patients on antiretroviral therapy: a systematic review and meta-analysis
Creators: name: Nkambule, Bongani B.
name: Vuyolwethu Mxinwa
name: Zibusiso Mkandla
name: Tinashe Mutize
name: Kabelo Mokgalaboni
name: Nyambuya, Tawanda M.
name: Phiwayinkosi V. Dludla
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Science Policy
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1: Table S1. Search strategy used on the EBSCOHOST search engine. Table S2. Publication bias analysis. Figure S1. Analysis of publication bias. The funnel plots were visually inspected for publication bias in the included studies.
ARM 7 Based Controller Area Network for Accident Avoidance in Automobiles
Creators: name: Joshi, Kashyap
name: Gohil, Vipul
Publisher: name: arXiv
Year: 2014
Subjects: subject: Other Computer Science (cs.OH)
subject: FOS: Computer and information sciences

description: Based on requirements of modern vehicle, in- vehicle Controller Area Network (CAN) architecture has been implemented. In order to reduce point to point wiring harness in vehicle automation, CAN is suggested as a means for data communication within the vehicle environment. The benefits of CAN bus based network over traditional point to point schemes will offer increased flexibility and expandability for future technology insertions. This paper describes system which uses sensors to measure various parameters of the car like speed, distance from the other car, presence of alcohol in car and accidental change of lane and sends a warning signal to the driver if any of the parameter goes out of range to avoid accidents . In addition to this if accident occurs in any remote area then using bump sensor accident is detected and SMS is send immediately using GSM. A situation that provides a good example of how the system works is when a driver is about to change lanes, and there is a car in his blind spot. The sensors will detect that car and inform the driver before he starts turning, preventing him from potentially getting into a serious accident.
description: 6 pages, 6 figure , "Published with International Journal of Engineering Trends and Technology (IJETT)". http://www.ijettjournal.org. published by seventh sense. research group
Self-gravity in thin discs and edge effects: an extension of Paczynski's approximation
Creators: name: Trova, Audrey
name: Huré, Jean-Marc
name: Hersant, Franck
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: As hydrostatic equilibrium of gaseous discs is partly governed by the gravity field, we have estimated the component caused by a vertically homogeneous disc, with a special attention for the outer regions where self-gravity classically appears. The accuracy of the integral formula is better than 1%, whatever the disc thickness, radial extension and radial density profile. At order zero, the field is even algebraic for thin discs and writes $- 4 πG Σ(R) f_{edge} (R)$ at disc surface, thereby correcting Paczynski's formula by a multiplying factor $f_{edge} \gtrsim 1/2$, which depends on the relative distance to the edges and the local disc thickness. For very centrally condensed discs however, this local contribution can be surpassed by action of mass stored in the inner regions, possibly resulting in $f_{edge} \gg 1$. A criterion setting the limit between these two regimes is derived. These result are robust in the sense that the details of vertical stratification are not critical. We briefly discuss how hydrostatic equilibrium is impacted. In particular, the disc flaring should not reverse in the self-gravitating region, which contradicts what is usually obtained from Paczynski's formula. This suggests that i) these outer regions are probably not fully shadowed by the inner ones (important when illuminated by a central star), and ii) the flared shape of discs does not firmly prove the absence or weakness of self-gravity.
description: Accepted for publication in A&A
Unusual Cathode Erosion Patterns Observed for Steered Arc Sources
Creators: name: Kolbeck, Jonathan
name: Anders, André
Publisher: name: arXiv
Year: 2014
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A cathodic arc source with a magnetron-type magnetic field was investigated for stability, erosion, and compatibility with a linear macroparticle filter. Here we report about unusual arc spot erosion patterns, which were narrow (~ 2 mm) with periodic pits when operating in argon, and broad (~ 10 mm) with periodic groves and ridges when operating in an argon and oxygen mixtures. These observations can be correlated with the ignition probability for type 2 and type 1 arc spots, respectively.
description: Manuscript submitted to the 7th Triennial Special Issue of the IEEE Transactions on Plasma Science "Images in Plasma Science," scheduled for publication in August 2014. Manuscript length is limited to 2 pages
Age of Onset and DSM-5 Alcohol Use Disorder in Late Adolescence – A Cohort Study From Sweden
Creators: name: Raninen, Jonas
name: Callinan, Sarah
name: Gmel, Gerhard
name: Brunborg, Geir Scott
name: Karlsson, Patrik
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 321301
subject: Adolescent health
classificationCode: 32
subject: Biomedical and clinical sciences
classificationCode: 4206
subject: Public health
classificationCode: 52
subject: Psychology
subject: FOS: Psychology
classificationCode: 5202
subject: Biological psychology
classificationCode: 42
subject: Health sciences
subject: FOS: Health sciences
classificationCode: 3213
subject: Paediatrics

description: Purpose: To examine if the prevalence of Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition alcohol use disorder (AUD) differs between two groups with different age of onset of alcohol use and if endorsement of different AUD criteria differs between the two groups. Methods: A two-wave longitudinal prospective cohort survey conducted in Sweden (2017–2019) with a nationwide sample of 3,999 adolescents aged 15/16 years at baseline (T1), and 17/18 years at follow-up (T2); 2,778 current drinkers at T2 were analysed. Participants were categorized into early onset of drinking (drinking already at T1 54.3%) or late onset (not drinking at T1 but at T2, 45.8%). AUD was measured with questions corresponding to the 11 Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition criteria for AUD. Potential confounding factors measured at T1 were sex, sensation-seeking, impulsivity, emotional symptoms, peer problems, conduct problems, and hyperactivity. Results: The early onset group had a higher prevalence of AUD at T2 compared to the late onset group (36.3% vs. 23.1%, p < .001). The higher risk of AUD remained significant in a linear probability model with control for additional confounding factors (β = 0.080, p < .001). All individual criteria were reported more in the early onset group, and there was no evidence of differential item functioning. Discussion: The age of onset of alcohol use was a significant predictor of AUD in late adolescence among Swedish adolescents. Those with an earlier onset of alcohol use had a higher prevalence of AUD and of all individual criteria. The items in the scale were similarly predictive of AUD in both groups.
Sonnenfleckenzeichnung Nr. 206.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 22.08.1995, 08:00, erstellt von Sergio Cortesi
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1995

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 4.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Additional file 2 of Predominant patterns of β-lactam hypersensitivity in a single German Allergy Center: exanthem induced by aminopenicillins, anaphylaxis by cephalosporins
Creators: name: Schrüfer, Philipp
name: Brockow, Knut
name: Stoevesandt, Johanna
name: Trautmann, Axel
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Science Policy

description: Additional file 2. Concentration of β-lactam antibiotics for skin testing and sequence of increasing doses used in single-blinded challenge. * For prick and patch testing, tablets were ground in a mortar and suspended with 1 mL physiological saline solution. iv, intravenous; n.d., not done.
Einfluss von Erschütterungen auf jungen Beton: Sprengungen im Tunnelbau, Rammarbeiten und Laborversuche
Creators: name: Wenker, Felix
name: Mähner, Dietmar
name: Fischer, Oliver
Publisher: name: Technical University of Munich
Year: 2023

description: Der vorliegende Beitrag behandelt Untersuchungen zum Einfluss von Erschütterungen auf jungen Beton. Zu diesen zählen Laborversuche, bei denen sinusförmige Schwingungen über einen Shaker simuliert wurden. Des Weiteren wurden auch Feldversuche auf verschiedenen Baustellen durchgeführt, bei denen junger Beton durch Spreng-vortrieb, die Herstellung eines Frankipfahles NG® sowie durch das Einvibrieren einer Spundbohle erschüttert und die dabei einwirkenden Schwingungen aufgezeichnet wurden. Das Ergebnis dieser Untersuchungen war, dass der junge Beton im Allgemeinen nicht signifikant durch die Erschütterungen beeinflusst wurde und durch eine frühzeitige Erschütterung sogar Festigkeitssteigerungen generiert werden konnten.
Chameleon Fragmentation
Creators: name: Brax, Philippe
name: Upadhye, Amol
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A scalar field dark energy candidate could couple to ordinary matter and photons, enabling its detection in laboratory experiments. Here we study the quantum properties of the chameleon field, one such dark energy candidate, in an "afterglow" experiment designed to produce, trap, and detect chameleon particles. In particular, we investigate the possible fragmentation of a beam of chameleon particles into multiple particle states due to the highly non-linear interaction terms in the chameleon Lagrangian. Fragmentation could weaken the constraints of an afterglow experiment by reducing the energy of the regenerated photons, but this energy reduction also provides a unique signature which could be detected by a properly-designed experiment. We show that constraints from the CHASE experiment are essentially unaffected by fragmentation for $ϕ^4$ and $1/ϕ$ potentials, but are weakened for steeper potentials, and we discuss possible future afterglow experiments.
description: 27 pages, 7 figures
Additional file 1 of Predominant patterns of β-lactam hypersensitivity in a single German Allergy Center: exanthem induced by aminopenicillins, anaphylaxis by cephalosporins
Creators: name: Schrüfer, Philipp
name: Brockow, Knut
name: Stoevesandt, Johanna
name: Trautmann, Axel
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Science Policy

description: Additional file 1. Grading the severity of anaphylaxis [modified from (7)].
Nanobiomedical engineering strategies for aging-associated brain diseases therapy
Creators: name: Liu, Yang
Publisher: name: Macquarie University
Year: 2024
Subjects: classificationCode: 399999
subject: Other education not elsewhere classified

description: Aging is a general risk for multiple age-related diseases. Accumulated evidences gradually revealed the underlay mechanisms of aging and thus novel therapeutic interventions were supposed. Emerging nanotechnology boosted the development of therapeutic agents and showed great potential in multiple age-related diseases treatments, especially for brain-associated diseases, due to the superior biology barrier accessibility of nanoparticles. Neurodegenerative diseases and brain tumor are the most common aging-associated brain diseases, which incidences increased with age. Current therapeutic options for neurodegenerative diseases and brain tumor are limited in available brain-blood barrier penetrable delivery vehicles and more selective therapeutic targets. In this thesis, we first gave an introduction to the recent advances in aging research and nano-delivery systems. Then moved to a series of nanoparticle-based brain delivery strategies developing and further applied in representative aging-associated brain diseases, such as Alzheimer`s disease and glioblastoma model. Novel bionic sugar decorated polymeric nanoparticles and peptide decorated exosome were applied for targeted brain delivery. In the meanwhile, different formulas of therapeutic agents including chemical drugs and siRNAs were used to evaluate the functional cargo release and pathology amelioration efficacy. These strategies may be applied in biotech drug therapeutics developments for a broad spectrum of aging-associated diseases towards targeting and controlled release challenges.
Additional file 2 of Bioprospecting the antimicrobial, antibiofilm and antiproliferative activity of Symplocos racemosa Roxb. Bark phytoconstituents along with their biosafety evaluation and detection of antimicrobial components by GC-MS
Creators: name: Sood, Henna
name: Kumar, Yashwant
name: Vipan Kumar Gupta
name: Arora, Daljit Singh
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
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: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2: Detailed protocol for Antibiofilm potential of the phytoconstituents of Symplocos racemosa bark; and Antimicrobial potential of the phytoconstituents against drug- resistant clinical isolates of MRSA, Escherichia coli, Enterococcus sp. and Salmonella spp.
Выбор высокотемпературных сверхпроводников для электротехнических изделий
Creators: name: Владимировна, Шевченко Валентина
name: Литкина М.А.
Publisher: name: Zenodo
Year: 2008
Subjects: высокотемпературные сверхпроводники

description: Опубликовано: [Шевченко В.В., Литкина М.А. Выбор высокотемпературных сверхпроводников для электротехнических изделий // Тезисы ХLІ научно-практической конференции научно-педагогических работников, ученых, аспирантов и сотрудников  академии (28-31 января 2008 г.), часть 1. - Украина, Харьков: УИПА, 2008. - С. 56. https://doi.org/10.5281/zenodo.2527895]

Выходом для человечества из эколого-энергетического тупика может стать использование принципиально новых источников и способов получения электроэнергии, включая использование электрооборудования на основе высокотемпературных сверхпроводников.

Ключевые слова: высокотемпературные сверхпроводники.
The Smith Cloud and its dark matter halo: Survival of a Galactic disc passage
Creators: name: Nichols, Matthew
name: Mirabal, Nestor
name: Agertz, Oscar
name: Lockman, Felix J.
name: Bland-Hawthorn, Joss
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The current velocity of the Smith Cloud indicates that it has undergone at least one passage of the Galactic disc. Using hydrodynamic simulations we examine the present day structure of the Smith Cloud. We find that a dark matter supported cloud is able to reproduce the observed present day neutral hydrogen mass, column density distribution and morphology. In this case the dark matter halo becomes elongated, owing to the tidal interaction with the Galactic disc. Clouds in models neglecting dark matter confinement are destroyed upon disc passage, unless the initial cloud mass is well in excess of what is observed today. We then determine integrated flux upper limits to the gamma-ray emission around such a hypothesised dark matter core in the Smith Cloud. No statistically significant core or extended gamma-ray emission are detected down to a 95% confidence level upper limit of $1.4\times10^{-10}$ ph cm$^{-2}$ s$^{-1}$ in the 1-300 GeV energy range. For the derived distance of 12.4 kpc, the Fermi upper limits set the first tentative constraints on the dark matter cross sections annihilating into $τ^{+}τ^{-}$ and $b\bar{b}$ for a high-velocity cloud.
description: 10 pages, 8 figures. Submitted to MNRAS
All-optical sub-Kelvin sympathetic cooling of a levitated microsphere in vacuum
Creators: name: Arita, Yoshihiko
name: Bruce, Graham D.
name: Wright, Ewan M.
name: Simpson, Stephen H.
name: Zemánek, Pavel
name: Dholakia, Kishan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate all-optical sympathetic cooling of a laser-trapped microsphere to sub-Kelvin temperatures, mediate by optical binding to a feedback-cooled adjacent particle. Our study opens prospects for multi-particle quantum entanglement and sensing in levitated optomechanics.
description: 3 pages, 2 figures
Additional file 1 of Bioprospecting the antimicrobial, antibiofilm and antiproliferative activity of Symplocos racemosa Roxb. Bark phytoconstituents along with their biosafety evaluation and detection of antimicrobial components by GC-MS
Creators: name: Sood, Henna
name: Kumar, Yashwant
name: Vipan Kumar Gupta
name: Arora, Daljit Singh
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
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: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1:. Organic extracts’ preparation and their antimicrobial screening; Minimum Inhibitory Concentration (MIC); Qualitative and Quantitative analysis for the detection of major group of phytoconstituents; Ames Mutagenicity Test and MTT assay Protocol.
Instanton Floer homology and contact structures
Creators: name: Baldwin, John A.
name: Sivek, Steven
Publisher: name: arXiv
Year: 2014
Subjects: subject: Symplectic Geometry (math.SG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: We define an invariant of contact 3-manifolds with convex boundary using Kronheimer and Mrowka's sutured instanton Floer homology theory. To the best of our knowledge, this is the first invariant of contact manifolds -- with or without boundary -- defined in the instanton Floer setting. We prove that our invariant vanishes for overtwisted contact structures and is nonzero for contact manifolds with boundary which embed into Stein fillable contact manifolds. Moreover, we propose a strategy by which our contact invariant might be used to relate the fundamental group of a closed contact 3-manifold to properties of its Stein fillings. Our construction is inspired by a reformulation of a similar invariant in the monopole Floer setting defined by the authors in [1].
description: 32 pages, 7 figures; this paper was originally part of arXiv:1403.1930
Fueling the Future or Stuck in the Past? A Physics-Driven and Economic Expedition into Electric, Hydrogen, HVO, and Petrol Propulsions
Creators: name: Bodemer, Oliver
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 389999
subject: Other economics not elsewhere classified

description: Ah, the game is afoot once more! Following the trail blazed by the enlightening tome ’Comparative Analysis of Electric Cars and Diesel Cars Using Hydrotreated Vegetable Oil (HVO)’ [6], we find ourselves embarking upon a most intriguing investigation. Our quarry? No less than four of the most cunning and elusive beasts in the automotive kingdom: electric, hydrogen, hydrotreated vegetable oil (HVO), and the venerable petrol.With the meticulous eye of a detective and the precision of a scientist, we delve into the very sinews and bones of these mechanical creatures. We shall dissect their physical efficiencies with the keen blade of physics, leaving no gear unturned, no circuit unexamined. From energy conversion to fuel consumption, we shall lay bare their secrets.But, my dear Watson, the plot thickens! For we shall not stop at mere physical scrutiny. No, we shall don our economist’s hat and weigh their worth in gold, assessing cost-effectiveness, market trends, and the long-term financial implications that would make even the Bank of England take notice.And let us not forget the environment, that great and silent witness to all our deeds. We shall examine emissions, sustainability, and ecological footprints with the thoroughness of a bloodhound on the scent.Our aim? To present an objective comparison, as clear and as illuminating as the gaslights of Baker Street, highlighting strengths, limitations, and the tantalizing possibilities that lie ahead. The findings, I have no doubt, will be of great interest to stakeholders, policymakers, and all those engaged in the grand debate on sustainable transportation. The game, as they say, is truly afoot!
Additional file 4 of Bioprospecting the antimicrobial, antibiofilm and antiproliferative activity of Symplocos racemosa Roxb. Bark phytoconstituents along with their biosafety evaluation and detection of antimicrobial components by GC-MS
Creators: name: Sood, Henna
name: Kumar, Yashwant
name: Vipan Kumar Gupta
name: Arora, Daljit Singh
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
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: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 4: Acute Oral Toxicity study of Symplocos racemosa flavonoids in Swiss albino mice.
Additional file 5 of Bioprospecting the antimicrobial, antibiofilm and antiproliferative activity of Symplocos racemosa Roxb. Bark phytoconstituents along with their biosafety evaluation and detection of antimicrobial components by GC-MS
Creators: name: Sood, Henna
name: Kumar, Yashwant
name: Vipan Kumar Gupta
name: Arora, Daljit Singh
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
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: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 5: Figures A1-A6 and Table TI, T2 and T3 of the main manuscript.
Survival of Terrestrial N2-O2 Atmospheres in Violent XUV Environments through Efficient Atomic Line Radiative Cooling
Creators: name: Nakayama, Akifumi
name: Ikoma, Masahiro
name: Terada, Naoki
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: Atmospheres play a crucial role in planetary habitability. Around M dwarfs and young Sun-like stars, planets receiving the same insolation as the present-day Earth are exposed to intense stellar X-rays and extreme-ultraviolet (XUV) radiation. This study explores the fundamental question of whether the atmosphere of present-day Earth could survive in such harsh XUV environments. Previous theoretical studies suggest that stellar XUV irradiation is sufficiently intense to remove such atmospheres completely on short timescales. In this study, we develop a new upper-atmospheric model and re-examine the thermal and hydrodynamic responses of the thermospheric structure of an Earth-like N2-O2 atmosphere, on an Earth-mass planet, to an increase in the XUV irradiation. Our model includes the effects of radiative cooling via electronic transitions of atoms and ions, known as atomic line cooling, in addition to the processes accounted for by previous models. We demonstrate that atomic line cooling dominates over the hydrodynamic effect at XUV irradiation levels greater than several times the present level of the Earth. Consequentially, the atmosphere's structure is kept almost hydrostatic, and its escape remains sluggish even at XUV irradiation levels up to a thousand times that of the Earth at present. Our estimates for the Jeans escape rates of N2-O2 atmospheres suggest that these 1 bar atmospheres survive in early active phases of Sun-like stars. Even around active late M dwarfs, N2-O2 atmospheres could escape significant thermal loss on timescales of gigayears. These results give new insights into the habitability of terrestrial exoplanets and the Earth's climate history.
description: Published 2022 September 29 in ApJ
Approximation of pressure perturbations by FEM
Creators: name: Bichir, Cătălin Liviu
name: Georgescu, Adelina
Publisher: name: arXiv
Year: 2011
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 76E05, 35J05, 65L60, 76M10, 65F15

description: In the mathematical problem of linear hydrodynamic stability for shear flows against Tollmien-Schlichting perturbations, the continuity equation for the perturbation of the velocity is replaced by a Poisson equation for the pressure perturbation. The resulting eigenvalue problem, an alternative form for the two-point eigenvalue problem for the Orr-Sommerfeld equation, is formulated in a variational form and this one is approximated by finite element method (FEM). Possible applications to concrete cases are revealed.
description: Presented at the 10th Conference on Applied and Industrial Mathematics - CAIM 2002, Pitesti and Mioveni, Romania, October, 2002; Scientific Bulletin of the Pitesti University
Übersicht über die aktuellen U-Bahn-Projekte der Landeshauptstadt München: 21 Streckenkilometer mit 18 neuen U-Bahnhöfen
Creators: name: Wulf, Ralf
name: Frischeisen, Frank
Publisher: name: Technical University of Munich
Year: 2023

description: In der Landeshauptstadt München wurden zwischen 1965 und 2010 exakt 100 U-Bahnhöfe und etwa 103 Streckenkilometer U-Bahn errichtet und in Betrieb genommen. Nach mehr als 12 Jahren ohne U-Bahn-Baustelle wurde letztes Jahr mit dem Bau der U5 nach Pasing begonnen. Für die weitere Verlängerung der U5 von Pasing bis Freiham laufen die Planungen auf Hochtouren. Ab 2024 wird für diesen Streckenabschnitt bereits eine große Vorhaltemaßnahme für den zukünftigen U-Bahnhof Freiham-Zentrum errichtet. Bei zwei weiteren Projekten – Entlastungsspange U9 und Verlängerung der U4 nach Osten – soll 2024 mit der Vorplanung begonnen werden. Für eine Vorhaltemaßnahme für die U9 am Hauptbahnhof München, die im Zuge des Baus der 2. S-Bahn-Stammstrecke jetzt schon errichtet wird, investiert die Landeshauptstadt München einen hohen 3-stelligen Millionenbetrag. Der U-Bahn-Bau in München nimmt also wieder richtig Fahrt auf. Wir freuen uns, bei zukünftigen Tagungen über den Fortschritt berichten zu können.
Fermi-LAT Observations of Supernova Remnant Kesteven 79
Creators: name: Auchettl, Katie
name: Slane, Patrick
name: Castro, Daniel
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In this paper we report on the detection of $γ$-ray emission coincident with the Galactic supernova remnant Kesteven 79 (Kes 79). We analysed approximately 52 months of data obtained with the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope. Kes 79 is thought to be interacting with adjacent molecular clouds based on the presence of strong $^{12}$CO J = 1 $\rightarrow$ 0 and HCO$^{+}$ J = 1 $\rightarrow$ 0 emission and the detection of 1720 MHz line emission towards the east of the remnant. Acceleration of cosmic rays is expected to occur at SNR shocks, and SNRs interacting with dense molecular clouds provide a good testing ground for detecting and analysing the production of $γ$-rays from the decay of $π^0$ into two $γ$-ray photons. This analysis investigates $γ$-ray emission coincident with Kes 79, which has a detection significance of $\sim 7 σ$. Additionally we present an investigation of the spatial and spectral characteristics of Kes 79 using multiple archival XMM-Newton observations of this remnant. We determine the global X-ray properties of Kes 79 and estimate the ambient density across the remnant. We also performed a similar analysis for Galactic SNR Kesteven 78 (Kes 78), but due to large uncertainties in the $γ$-ray background model, no conclusion can be made about an excess of GeV $γ$-ray associated with the remnant.
description: Accepted by ApJ; 16 pages, 5 figures, 6 tables
On Products of Generalized Geometries
Creators: name: Gomez, Ralph R.
name: Talvacchia, Janet
Publisher: name: arXiv
Year: 2013
Subjects: subject: Differential Geometry (math.DG)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics

description: In this paper we address what generalized geometric structures are possible on products of spaces that each admit generalized geometries. In particular we consider, first, the product of two odd dimensional spaces that each admit a generalized almost contact structure, and then subsequently, the product of an odd dimensional space that admits a generalized almost contact structure and an even dimensional space that admits a generalized almost complex structure. We also draw attention to the relationship of the Courant bracket to the classical notion of normality for almost contact structures.
description: Final print version; To appear in Geometriae Dedicata
The Earth as an extrasolar transiting planet - II: HARPS and UVES detection of water vapor, biogenic O$_2$, and O$_3$
Creators: name: Arnold, Luc
name: Ehrenreich, David
name: Vidal-Madjar, Alfred
name: Dumusque, Xavier
name: Nitschelm, Christian
name: Querel, Richard R.
name: Hedelt, Pascal
name: Berthier, Jérôme
name: Lovis, Christophe
name: Moutou, Claire
name: Ferlet, Roger
name: Crooker, David
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The atmospheric composition of transiting exoplanets can be characterized during transit by spectroscopy. For the transit of an Earth twin, models predict that biogenic $O_2$ and $O_3$ should be detectable, as well as water vapour, a molecule linked to habitability as we know it on Earth. The aim is to measure the Earth radius versus wavelength $λ$ - or the atmosphere thickness $h(λ)$ - at the highest spectral resolution available to fully characterize the signature of Earth seen as a transiting exoplanet. We present observations of the Moon eclipse of 21-12-2010. Seen from the Moon, the Earth eclipses the Sun and opens access to the Earth atmosphere transmission spectrum. We used HARPS and UVES spectrographs to take penumbra and umbra high-resolution spectra from 3100 to 10400 Ang. A change of the quantity of water vapour above the telescope compromised the quality of the UVES data. We corrected for this effect in the data processing. We analyzed the data by 3 different methods. The 1st method is based on the analysis of pairs of penumbra spectra. The 2nd makes use of a single penumbra spectrum, and the 3rd of all penumbra and umbra spectra. Profiles $h(λ)$ are obtained with the three methods for both instruments. The 1st method gives the best result, in agreement with a model. The second method seems to be more sensitive to the Doppler shift of solar spectral lines with respect to the telluric lines. The 3rd method makes use of umbra spectra which bias the result, but it can be corrected for this a posteriori from results with the first method. The 3 methods clearly show the spectral signature of the Rayleigh scattering in the Earth atmosphere and the bands of H$_2$O, O$_2$, and O$_3$. Sodium is detected. Assuming no atmospheric perturbations, we show that the E-ELT is theoretically able to detect the $O_2$ A-band in 8~h of integration for an Earth twin at 10pc.
description: Final version accepted for publication in A&A - 21 pages, 27 figures. Abstract above slightly shortened wrt the original. The ArXiv version has low resolution figures, but a version with full resolution figures is available here: http://www.obs-hp.fr/~larnold/publi_to_download/eclipse2010_AA_v5_final.pdf
«Reconheceram-no no partir do pão». Lectio divina de Lc 24, 13-35 que ilumina a vivência e celebração da Eucaristia
Creators: name: Couto, António
Publisher: name: Theologica
Year: 1999

description: Theologica, v. 34 n. 2 (1999): Jesus Cristo, único salvador do mundo, pão para a vida nova | 3º Congresso Eucarístico Nacional. Actas
1-Dimensional Intrinsic Persistence of Geodesic Spaces
Creators: name: Virk, Žiga
Publisher: name: arXiv
Year: 2017
Subjects: subject: Geometric Topology (math.GT)
subject: Algebraic Topology (math.AT)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics

description: Given a compact geodesic space $X$ we apply the fundamental group and alternatively the first homology group functor to the corresponding Rips or Čech filtration of $X$ to obtain what we call a persistence. This paper contains the theory describing such persistence: properties of the set of critical points, their precise relationship to the size of holes, the structure of persistence and the relationship between open and close, Rips and Čech induced persistences. Amongst other results we prove that a Rips critical point $c$ corresponds to an isometrically embedded circle of length $3c$, that a homology persistence of a locally contractible space with coefficients in a field encodes the lengths of the lexicographically smallest base and that Rips and Čech induced persistences are isomorphic up to a factor $3/4$. The theory describes geometric properties of the underlying space encoded and extractable from persistence.
description: 35 pages, 8 figures. Definition 4.1 has been updated. Now it also holds for non semi-locally simply connected spaces. The details of this modification are in the last section "Comments on this version of the manuscript"
U5: Eine neue U-Bahnlinie für Hamburg
Creators: name: Zehetmaier, Gerhard
Publisher: name: Technical University of Munich
Year: 2023

description: Die neue U-Bahnlinie U5 in Hamburg wird mit einer Länge von 25 km und prognostizierten Kosten von bis zu 16,5 Mrd.€ eines der größten und ambitioniertesten Nahverkehrsprojekte Deutschlands. Der Beitrag soll neben einem Überblick über das Projekt insbesondere Auskünfte zu planerischen Aspekten geben, etwa zu bautechnisch komplexen Innenstadthaltestellen oder zur vollständig modellbasierten Entwurfsplanung.
Average non-vanishing of Dirichlet $L$-functions at the central point
Creators: name: Pratt, Kyle
Publisher: name: arXiv
Year: 2018
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: The Generalized Riemann Hypothesis implies that at least 50% of the central values $L \left( \frac{1}{2},χ\right)$ are non-vanishing as $χ$ ranges over primitive characters modulo $q$. We show that one may unconditionally go beyond GRH, in the sense that if one averages over primitive characters modulo $q$ and averages $q$ over an interval, then at least 50.073% of the central values are non-vanishing. The proof utilizes the mollification method with a three-piece mollifier, and relies on estimates for sums of Kloosterman sums due to Deshouillers and Iwaniec.
 Note: The author has been made aware of an error in this work. It seems the error can be fixed, by using a different argument, and the author will present a correction in due course.
description: 22 pages. Added notice of an error in the work. Corrected proof to appear later
Benchmarking optimization algorithms for auto-tuning GPU kernels
Creators: name: Schoonhoven, Richard
name: van Werkhoven, Ben
name: Batenburg, Kees Joost
Publisher: name: arXiv
Year: 2022
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Graphics (cs.GR)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: Recent years have witnessed phenomenal growth in the application, and capabilities of Graphical Processing Units (GPUs) due to their high parallel computation power at relatively low cost. However, writing a computationally efficient GPU program (kernel) is challenging, and generally only certain specific kernel configurations lead to significant increases in performance. Auto-tuning is the process of automatically optimizing software for highly-efficient execution on a target hardware platform. Auto-tuning is particularly useful for GPU programming, as a single kernel requires re-tuning after code changes, for different input data, and for different architectures. However, the discrete, and non-convex nature of the search space creates a challenging optimization problem. In this work, we investigate which algorithm produces the fastest kernels if the time-budget for the tuning task is varied. We conduct a survey by performing experiments on 26 different kernel spaces, from 9 different GPUs, for 16 different evolutionary black-box optimization algorithms. We then analyze these results and introduce a novel metric based on the PageRank centrality concept as a tool for gaining insight into the difficulty of the optimization problem. We demonstrate that our metric correlates strongly with observed tuning performance.
description: in IEEE Transactions on Evolutionary Computation, 2022
Additional file 3 of Bioprospecting the antimicrobial, antibiofilm and antiproliferative activity of Symplocos racemosa Roxb. Bark phytoconstituents along with their biosafety evaluation and detection of antimicrobial components by GC-MS
Creators: name: Sood, Henna
name: Kumar, Yashwant
name: Vipan Kumar Gupta
name: Arora, Daljit Singh
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
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: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 3:. In vitro cytotoxicity studies by MTT assay against RD, L20B and Hep2 cell lines.
An Investigation Of The Preparation, Properties And Application Of Some 8-Carboalkoxyethyltin Compounds
Creators: name: Parker, Lenworth
Publisher: name: London South Bank University
Year: 1986

description: The objective of this work has been to prepare and study a series of B -carboalkoxyethyltin halides and the corresponding carboxylate analogues. The chemistry of 8 -carboalkoxyethyltins and other related compounds is reviewed in Chapters 1 and 2 with particular reference to published work on the redistribution reactions of these compounds. Reaction routes to improve yields of tris(A-carboalkoxyethyl)tin halides were investigated. Redistribution reactions at a range of conditions to reduce the conversion rate to the tetraorganotin were particularly successful. An alternative synthesis using zinc chloride and stannous chloride with S-carboalkoxyethyltins was also studied. A series of transesterification reactions and hydrolysis reactions of f-car boalkoxyethyltins were undertaken to obtain more information about the mechanism. On the basis of spectroscopic data structural assignments are proposed for p-carboalkoxyethyltin halides. A related series tris($-carboalkoxyethyl)tin carboxylates was also synthesised and evaluated for biocidal function. In addition, the infra-red spectra of these saits showed interesting variations in %o20 absorptions enabling suggestions to be made about their stereochemistry. Vapour phase osmometry date, suggest that these tris@-carboalkoxyethyl)tin carboxylates are predominantly monomeric, but that this is dependent on the size of the alkyl groups. Both infra-red and Mossbauer date give evidence of electron back donation via the coordinating carbonyl group. This is explained in terms of electronic and steric contribution of the carboxylate group (RCO, The stereochemistry of tris(g -carboalkoxyethyl)tins is considered in the light of this dat. - ). The results of bacteriostatic and fungistatic evaluation of tris(#-carbobutoxyethyl)tin compounds are reported. Unlike simple triorganotin compounds, such as tributyltin acetate, many of the compounds evaluated proved to have low biological activity. The activities of two proved to be notable exceptions: tris(B-carbobutoxyethyl)tin glutamate sodium salt and the 2-ethylmercurithiosalicylate analogue, these are discussed and suggestions made to explain their activity.
On the Maximum Number of Codewords of X-Codes of Constant Weight Three
Creators: name: Tsunoda, Yu
name: Fujiwara, Yuichiro
Publisher: name: arXiv
Year: 2019
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: X-codes form a special class of linear maps which were originally introduced for data compression in VLSI testing and are also known to give special parity-check matrices for linear codes suitable for error-erasure channels. In the context of circuit testing, an $(m, n, d, x)$ X-code compresses $n$-bit output data $R$ from the circuit under test into $m$ bits, while allowing for detecting the existence of an up to $d$-bit-wise anomaly in $R$ even if up to $x$ bits of the original uncompressed $R$ are unknowable to the tester. Using probabilistic combinatorics, we give a nontrivial lower bound for any $d \geq 2$ on the maximum number $n$ of codewords such that an $(m, n, d, 2)$ X-code of constant weight $3$ exists. This is the first result that shows the existence of an infinite sequence of X-codes whose compaction ratio tends to infinity for any fixed $d$ under severe weight restrictions. We also give a deterministic polynomial-time algorithm that produces X-codes that achieve our bound.
description: 5 pages, submitted to the 2019 IEEE International Symposium on Information Theory
The 2011 Outburst of Recurrent Nova T Pyx: X-ray Observations Expose the White Dwarf Mass and Ejection Dynamics
Creators: name: Chomiuk, Laura
name: Nelson, Thomas
name: Mukai, Koji
name: Sokoloski, J. L.
name: Rupen, Michael P.
name: Page, Kim L.
name: Osborne, Julian P.
name: Kuulkers, Erik
name: Mioduszewski, Amy J.
name: Roy, Nirupam
name: Weston, Jennifer
name: Krauss, Miriam I.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The recurrent nova T Pyx underwent its sixth historical outburst in 2011, and became the subject of an intensive multi-wavelength observational campaign. We analyze data from the Swift and Suzaku satellites to produce a detailed X-ray light curve augmented by epochs of spectral information. X-ray observations yield mostly non-detections in the first four months of outburst, but both a super-soft and hard X-ray component rise rapidly after Day 115. The super-soft X-ray component, attributable to the photosphere of the nuclear-burning white dwarf, is relatively cool (~45 eV) and implies that the white dwarf in T Pyx is significantly below the Chandrasekhar mass (~1 M_sun). The late turn-on time of the super-soft component yields a large nova ejecta mass (>~10^-5 M_sun), consistent with estimates at other wavelengths. The hard X-ray component is well fit by a ~1 keV thermal plasma, and is attributed to shocks internal to the 2011 nova ejecta. The presence of a strong oxygen line in this thermal plasma on Day 194 requires a significantly super-solar abundance of oxygen and implies that the ejecta are polluted by white dwarf material. The X-ray light curve can be explained by a dual-phase ejection, with a significant delay between the first and second ejection phases, and the second ejection finally released two months after outburst. A delayed ejection is consistent with optical and radio observations of T Pyx, but the physical mechanism producing such a delay remains a mystery.
description: Re-submitted to ApJ after revisions
Geo-imagery management and statistical processing in a regional context using Open Data Cube
Creators: name: Otamendi, U.
name: Azpiroz, I.
name: Quartulli, M.
name: Olaizola, I.
name: Perez, F. J.
name: Alda, D.
name: Garitano, X.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: We propose a methodology to manage and process remote sensing and geo-imagery data for non-expert users. The proposed system provides automated data ingestion and manipulation capability for analytical data-driven purposes. In this paper, we describe the technological basis of the proposed method in addition to describing the tool architecture, the inherent data flow, and its operation in a specific use case to provide statistical summaries of Sentinel-2 regions of interest corresponding to the cultivation of polygonal areas located in the Basque Country (ES).
description: 4 pages, 4 figures, Published in 2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS