170 research outputs found

    Tattooing and piercing--the need for guidelines in EU.

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    As in Amsterdam [1], the impetus for UK guidelines for hygienic tattooing came from an outbreak of hepatitis B caused in 1978 by a tattooist. The outbreak resulted in 30 primary and three secondary cases [2]. Guidelines for hygienic tattooing followed soon after, and were taken up, fairly enthusiastically on the whole, by the tattooists. These were expanded in 1982 to include acupuncture, ear-piercing and hair electrolysis. Laws to control the hygiene of these practitioners were introduced at the same time {Local Government Miscellaneous Provisions Act 1982 [amended 2003] and the Greater London Council [General Powers] Act 1982}. Body piercing was hardly heard of at the time: although it was undoubtedly and somewhat furtively practised, it was not as popular or as open as it is now. Guidelines for beauty therapy, hygienic hairdressing and micropigmentation followed

    Epidemiology and Infection – going electronic after 100 years

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    Trump on Trial: A Guide to the January 6 Hearings and the Question of Criminality

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    President Joe Biden legitimately won a fair and secure 2020 presidential election--and Donald Trump lost. This historical fact has been uncontroverted by any evidence since at least November 7, 2020, when major news outlets projected Biden's victory. But Trump never conceded. Instead, both before and after Election Day, he tried to delegitimize the election results by disseminating a series of far-fetched and evidence-free claims of fraud. Meanwhile, with a ring of close confidants, Trump conceived and implemented unprecedented schemes to--in his own words--"overturn" the election outcome. Among the results of this "Big Lie" campaign were the terrible events of January 6, 2021--an inflection point in what we now understand was nothing less than an attempted coup.With Congress undertaking landmark hearings on all of that, this report is a comprehensive guide to the proceedings. It covers the Committee's work to date, the key players in the attempt to overturn the election, the known facts regarding their conduct that are expected to be covered at the hearings, and the criminal law applicable to their actions. The report is intended to help readers evaluate all those proceedings going forward

    BRINK: A Review of Books, Issue 2

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    Disparity, diversity, and duplications in the Caryophyllales

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    Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/141874/1/nph14772_am.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/141874/2/nph14772.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/141874/3/nph14772-sup-0001-SupInfo.pd

    UGC 4599: A Photometric Study of the Nearest Hoag-Type Ring Galaxy

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    We present a photometric study of UGC 4599, a low-luminosity galaxy superficially resembling Hoag's Object in that on sky survey images it appears to be a complete ring surrounding a roundish core. The nature of the outer ring of Hoag-type galaxies is still debated and may be related either to slow secular evolution or to environmental processes, such as galaxy-galaxy interactions. we show that in UGC 4599 (a) the nearly round central body follows well an r^1/4 light profile almost all the way to the centre, (b) the isophotes are strongly twisted with a sharp 45 deg transition at a radius of r~6 arcsec, (c) the blue ring seems to have reached near-equilibrium configuration with the central body, (d) the ring is actually composed of a one-and-a-half turn spiral feature, and (e) one side of the spiral shows conspicuous star formation in the form of at least nine HII regions, revealed by their H_alpha emission. Based on the photometric data, together with HI information from the literature, we characterize UGC 4599 as an elliptical-like object surrounded by a luminous ring and a massive, extremely extended HI disc. Given its observed properties, we rule out UGC 4599 as representing a late phase in barred early-type galaxies evolution. We discuss the origin of UGC 4599 and conclude that this galaxy could be the result of a major interaction between two gas-rich spiral galaxies that took place at least 5 Gyr ago. However, deep optical imaging and a detailed stellar population analysis are required to determine whether the large gas reservoir could have been accreted directly from the intergalactic medium onto a pre-existing elliptical galaxy in the early Universe. A detailed kinematical study will shed light on the exact nature of the central body and the ring of UGC 4599.Comment: 14 pages, 6 figures and 5 tables. Accepted for publication in MNRAS. The abstract is abridged compared to the published versio

    Systems and processes for regulation of investigational medical devices in Uganda

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    BackgroundIn many parts of the world, medical devices and the processes of their development are tightly regulated. However, the current regulatory landscape in Uganda like other developing countries is weak and poorly defined, which creates significant barriers to innovation, clinical evaluation, and translation of medical devices.AimTo evaluate current knowledge, systems and infrastructure for medical devices regulation and innovation in Uganda.MethodsA mixed methods study design using the methods triangulation strategy was employed in this study. Data of equal weight were collected sequentially. First, a digital structured questionnaire was sent out to innovators to establish individual knowledge and experience with medical device innovation and regulation. Then, a single focus group discussion involving both medical device innovators and regulators to collect data about the current regulatory practices for medical devices in Uganda. Univariate and bivariate analysis was done for the quantitative data to summarize results in graphs and tables. Qualitative data was analyzed using thematic analysis. Ethical review and approval were obtained from the Makerere University School of Biomedical Sciences, Research and Ethics Committee, and the Uganda National Council for Science and Technology.ResultsA total of 47 innovators responded to the questionnaire. 14 respondents were excluded since they were not medical device innovators. Majority (76%) of individuals had been innovators for more than a year, held a bachelor's degree with a background in Engineering and applied sciences, and worked in an academic research institute. 22 of the 33 medical device innovators had stopped working on their innovations and had stalled at the proof-of-concept stage. Insufficient funding, inadequate technical expertise and confusing regulatory landscape were major challenges to innovation. The two themes that emerged from the discussion were “developing standards for medical devices regulation” and “implementation of regulations in practical processes”. Legal limitations, lengthy processes, and low demand were identified as challenges to developing medical device regulations.ConclusionsEfforts have been taken by government to create a pathway for medical device innovations to be translated to the market. More work needs to be done to coordinate efforts among stakeholders to build effective medical device regulations in Uganda

    Testing Above- and Below-Canopy Representations of Turbulent Fluxes in an Energy Balance Snowmelt Model

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    Turbulent fluxes of sensible and latent heat are important processes in the surface energy balance that drives snowmelt. Modeling these fluxes in a forested environment is complicated because of the canopy effects on the wind field. This paper presents and tests a turbulent flux model developed to represent these processes in an energy balance snowmelt model. The goal is to model these processes using the readily available inputs of canopy height and leaf area index in a way that minimizes the number of parameters, state variables, and assumptions about hard to quantify processes. Selected periods from 9 years of eddy-covariance (EC) measurements at Niwot Ridge, Colorado, were used to evaluate the effectiveness of this modeling approach. The model was able to reproduce the above-canopy sensible and latent heat fluxes reasonably with the correlation higher for sensible heat than latent heat. The modeled values of the below-canopy latent heat fluxes also matched the EC-measured values. The model captured the nighttime below-canopy sensible heat flux quite well, but there were discrepancies in daytime sensible heat flux possibly due to mountain slope circulation not quantifiable in this kind of model. Despite the uncertainties in the below-canopy sensible heat fluxes, the results are encouraging and suggest that reasonable predictions of turbulent flux energy exchanges and subsequent vapor losses from snow in forested environments can be obtained with a parsimonious single-layer representation of the canopy. The model contributes an improved physically based capability for predicting the snow accumulation and melt in a forested environment
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