101 research outputs found

    Comprehensively identifying Long Covid articles with human-in-the-loop machine learning

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    A significant percentage of COVID-19 survivors experience ongoing multisystemic symptoms that often affect daily living, a condition known as Long Covid or post-acute-sequelae of SARS-CoV-2 infection. However, identifying scientific articles relevant to Long Covid is challenging since there is no standardized or consensus terminology. We developed an iterative human-in-the-loop machine learning framework combining data programming with active learning into a robust ensemble model, demonstrating higher specificity and considerably higher sensitivity than other methods. Analysis of the Long Covid collection shows that (1) most Long Covid articles do not refer to Long Covid by any name (2) when the condition is named, the name used most frequently in the literature is Long Covid, and (3) Long Covid is associated with disorders in a wide variety of body systems. The Long Covid collection is updated weekly and is searchable online at the LitCovid portal: https://www.ncbi.nlm.nih.gov/research/coronavirus/docsum?filters=e_condition.LongCovi

    Sociedade de fato: empreender ou fracassar?

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    De facto company is one of the types most adopted by entrepreneurs when doing business. Through the following pages, the reader will access to a exhaustive analysis of the legal regulation applicable to this company type and the difficulties that its constitution, operation and dissolution arise, from the perspective of doctrine and judgments, which will allow to determine if undertaking under this company type guarantees the success or failure of the business.La sociedad comercial de hecho es uno de los tipos sociales más utilizado por los emprendedores a la hora de realizar negocios. En el siguiente trabajo el lector se encontrará con un análisis exhaustivo del régimen legal aplicable a este tipo social y de las dificultades que presenta su constitución, funcionamiento y disolución, tanto desde una perspectiva doctrinaria como jurisprudencial, lo que permitirá determinar si emprender bajo esta forma garantiza el éxito o el fracaso del negocio.A sociedade comercial de fato é um dos tipos mais utilizados pelos empreendedores na hora de realizar negócios. No presente trabalho, o leitor encontrará uma análise exaustiva do regime jurídico aplicável a esse tipo de sociedade e das dificuldades que apresenta a sua constituição, funcionamento e dissolução, tanto de uma perspectiva doutrinária como jurisprudencial, o que permitirá determinar se empreender sob esta forma garante o sucesso ou o fracasso do negócio

    H-alpha kinematics of S4G spiral galaxies-II. Data description and non-circular motions

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    We present a kinematical study of 29 spiral galaxies included in the Spitzer Survey of Stellar Structure in Galaxies, using Halpha Fabry-Perot data obtained with the Galaxy Halpha Fabry-Perot System instrument at the William Herschel Telescope in La Palma, complemented with images in the R-band and in Halpha. The primary goal is to study the evolution and properties of the main structural components of galaxies through the kinematical analysis of the FP data, complemented with studies of morphology, star formation and mass distribution. In this paper we describe how the FP data have been obtained, processed and analysed. We present the resulting moment maps, rotation curves, velocity model maps and residual maps. Images are available in FITS format through the NASA/IPAC Extragalactic Database and the Centre de Donn\'ees Stellaires. With these data products we study the non-circular motions, in particular those found along the bars and spiral arms. The data indicate that the amplitude of the non-circular motions created by the bar does not correlate with the bar strength indicators. The amplitude of those non-circular motions in the spiral arms does not correlate with either arm class or star formation rate along the spiral arms. This implies that the presence and the magnitude of the streaming motions in the arms is a local phenomenon.Comment: 23 pages, 14 figures, without appendices, accepted to be published in MNRA

    The Ursinus Weekly, November 17, 1952

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    Faculty show is considered huge success • Dean addresses freshman class • Bus. Ad. Club sponsors debate on current economic issues • Y cabinet hears program plans of commissions • Dorm reps chosen to sell yearbooks • Speaker explains international bank • 11 articles, three books left in lost and found department • Ruby to give show on Friday • Benefit fashion show enjoyed by audience • I.R.C. attends model U.N. • Chest Drive opens today; $1300 set as final goal • Two Messiah soloists chosen • Lord to speak at Forum on November 25 • Freshmen petition to give breakage fees to Union • Rev. James tells What on earth God is doing • Alpha Psi sees play • Kratz, Moser describe Paris to French Club • Marine captain to speak • Editorials: Fashionable trend?; Let\u27s all give • No more expansiveness • Don Juan in Hell judged fine show • Engagements • Scribe reviews Russian movie • F.T.A. holds roast • Not as dead as you think claims fightin\u27st college • Time for change; Ursinus in 1870 • Go west young man ; Dawkins finds rare rattler • Snell\u27s Belles defeat Chestnut Hill in shutout • Court men begin pre-season drills • Drexel defeats Ursinus in final home tilt, 7-1 • Bakermen close season with 7-2 loss to Lehigh • Bears to try for equalizing victory • Juniata topples Bears in rain and mud, 7-0 • Two Ursinus Belles honored • Playoffs to decide champhttps://digitalcommons.ursinus.edu/weekly/1506/thumbnail.jp

    Seasonal kinetic energy variability of near-inertial motions

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    Author Posting. © American Meteorological Society, 2009. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Physical Oceanography 39 (2009): 1035-1049, doi:10.1175/2008JPO3920.1.Seasonal variability of near-inertial horizontal kinetic energy is examined using observations from a series of McLane Moored Profiler moorings located at 39°N, 69°W in the western North Atlantic Ocean in combination with a one-dimensional, depth-integrated kinetic energy model. The time-mean kinetic energy and shear vertical wavenumber spectra of the high-frequency motions at the mooring site are in reasonable agreement with the Garrett–Munk internal wave description. Time series of depth-dependent and depth-integrated near-inertial kinetic energy are calculated from available mooring data after filtering to isolate near-inertial-frequency motions. These data document a pronounced seasonal cycle featuring a wintertime maximum in the depth-integrated near-inertial kinetic energy deriving chiefly from the variability in the upper 500 m of the water column. The seasonal signal in the near-inertial kinetic energy is most prominent for motions with vertical wavelengths greater than 100 m but observable wintertime enhancement is seen down to wavelengths of the order of 10 m. Rotary vertical wavenumber spectra exhibit a dominance of clockwise-with-depth energy, indicative of downward energy propagation and implying a surface energy source. A simple depth-integrated near-inertial kinetic energy model consisting of a wind forcing term and a dissipation term captures the order of magnitude of the observed near-inertial kinetic energy as well as its seasonal cycle.Funding to initiate the McLane Moored Profiler observations at Line W were provided by grants from the G. Unger Vetlesen Foundation and the Comer Charitable Fund to the Woods Hole Oceanographic Institution’s Ocean and Climate Change Institute. Ongoing moored observations at Line W are supported by the National Science Foundation (NSF Grant OCE-0241354)

    Evaluation of an emergency safe supply drugs and managed alcohol program in COVID-19 isolation hotel shelters for people experiencing homelessness

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    BACKGROUND: During a COVID-19 outbreak in the congregate shelter system in Halifax, Nova Scotia, Canada, a multidisciplinary health care team provided an emergency “safe supply” of pharmaceutical-grade medications and beverage-grade alcohol to facilitate isolation in COVID-19 hotel shelters for residents who are dependent on these substances. We aimed to evaluate (a) substances and dosages provided, and (b) effectiveness and safety of the program. METHODS: We retrospectively reviewed medical records of all COVID-19 isolation hotel shelter residents during May 2021. We extracted data on medication and alcohol dosages provided each day. The primary outcome was residents prematurely leaving isolation against public health orders. Adverse events included (a) overdose; (b) intoxication; and (c) diversion, selling, or sharing of medications or alcohol. RESULTS: Over 25 days, 77 isolation hotel residents were assessed (mean age 42 ± 14 years; 24% women). Sixty-two (81%) residents were provided medications, alcohol, or cigarettes. Seventeen residents (22%) received opioid agonist treatment medications (methadone, buprenorphine, or slow-release oral morphine) and 27 (35%) received hydromorphone tablets. Thirty-one (40%) residents received stimulant tablets with methylphenidate (27; 35%), dextroamphetamine (8; 10%), or lisdexamfetamine (2; 3%). Six residents (8%) received benzodiazepines. Forty-two (55%) residents received alcohol, including 41 (53%) with strong beer, three (3%) with wine, and one (1%) with hard liquor. Over 14 days in isolation, mean daily dosages increased of hydromorphone (45 ± 32 to 57 ± 42mg), methylphenidate (51 ± 28 to 77 ± 37mg), dextroamphetamine (33 ± 16 to 46 ± 13mg), and alcohol (12.3 ± 7.6 to 13.0 ± 6.9 standard drinks). Six residents (8%) left isolation prematurely, but four of those residents returned. Over 1,059 person-days in isolation, there were zero overdoses. Documented concerns regarding intoxication occurred six times (0.005 events/person-day) and medication diversion or sharing three times (0.003 events/person-day). CONCLUSIONS: An emergency safe supply and managed alcohol program, paired with housing, was associated with low rates of adverse events and high rates of successful completion of the 14-day isolation period in COVID-19 isolation hotel shelters. This supports the effectiveness and safety of emergency safe supply prescribing and managed alcohol in this setting

    Holocene Atlantic climate variations deduced from carbonate peri-platform sediments (leeward margin, Great Bahama Bank)

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    A marine sediment core from the leeward margin of Great Bahama Bank (GBB) was subjected to a multiproxy study. The aragonite dominated core MD992201 comprises the past 7230 years in a decadal time resolution and shows sedimentation rates of up to 13.8 m/kyr. Aragonite mass accumulation rates, age differences between planktonic foraminifera and aragonite sediments, and temperature distribution are used to deduce changes in aragonite production rates and paleocurrent strengths. Aragonite precipitation rates on GBB are controlled by exchange of carbonate ions and CO2 loss due to temperature-salinity conditions and biological activity, and these are dependent on the current strength. Paleocurrent strengths on GBB show high current velocities during the periods 6000–5100 years BP, 3500–2700 years BP, and 1600–700 years BP; lower current speeds existed during the time intervals 5100–3500 years BP, 2700–1600 years BP, and 700–100 years BP. Bahamian surface currents are directly linked to the North Atlantic atmospheric circulation, and thus periods with high (low) current speeds are proposed to be phases of strong (weak) atmospheric circulation
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