- Nov 2024
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fusionbodyart.com fusionbodyart.com
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Butterfly Face Paint Tutorial | UV Neon Henna Style
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pythonspeed.com pythonspeed.com
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I’m writing this on October 15th, 2024. Last week I would’ve said you probably shouldn’t be using uv’s Python in production, because you wouldn’t be getting security updates to OpenSSL. This week, I would tentatively say that it’s fine. This makes me a little uncomfortable, because there may well be other issues I haven’t thought of, and uv is still very new.
You may use uv in production, but there may be still some undiscovered quirks.
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The uv-provided Python executable is slower than the one shipped by Ubuntu 24.04 LTS, but it’s faster than the “official” Docker image.
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The ability to install Python with uv adds interesting possibilities for production packaging. For example, you can use an Ubuntu 24.04 base Docker image, download uv, and rely on uv to trivially install any Python version. Which is to say, you won’t be limited to the versions Ubuntu packages for you.
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Unlike most Python packaging tools, uv doesn’t require Python to be installed to use it.
About uv Python packaging tool
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- Jan 2022
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www.artsound.gr www.artsound.gr
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www.ncbi.nlm.nih.gov www.ncbi.nlm.nih.gov
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Despite lively discussion on the role that UV-based technologies can play in reducing SARS-CoV-2 transmission [[27], [28], [29], [30]], available data on its use and impact are still scant, setting-specific and heterogeneous in terms of study design and assessed outcomes
Scientific data on UV & airborn diseases still lagging behind other precautionary methods.
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www-nature-com.ezproxy.lib.ucalgary.ca www-nature-com.ezproxy.lib.ucalgary.ca
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an UV-C dose of just 3.7 mJ/cm2 was sufficient to achieve a more than 3-log inactivation
Good to know measure of effectiveness.
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- Sep 2020
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www.hiroshima-u.ac.jp www.hiroshima-u.ac.jp
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Researchers offer first proof that Ultraviolet C light with a 222 nm wavelength — which is safer to use around humans — effectively kills the SARS-CoV-2 virus.
Take Away: Most germicidal ultraviolet (UV) lamps emit a wavelength of around 254 nm. While these are very effective means of sterilization, they are also damaging to human skin and eyes and therefore are used in unoccupied spaces. However, a recent study has shown that a safer form of UV light at a wavelength of 222 nm is effective in killing SARS-CoV-2 virus in vitro.
The Claim: Researchers offer first proof that Ultraviolet C light with a 222 nm wavelength — which is safer to use around humans — effectively kills the SARS-CoV-2 virus.
The Evidence: The authors reference the safety of 222 nm UV light, and there are many studies to support this claim. 222 nm UV light has been shown to not cause DNA damage or skin lesions even at higher doses and for longer exposure times than used here (1, 2).
In the study referenced, researchers at Hiroshima University exposed SARS-CoV-2 virus to low dosage 222 nm UV light and subsequently measured the amount of viable virus (3). They found that exposure of 0.1 mW/cm^2 for 30 seconds reduced the amount of viable virus by 99.7%. However, as the authors note, this study was performed using virus plated on a dish in a hood, and translation of these results to a public setting is unclear. For instance, in a hospital, there are many different types of surfaces and direct/consistent exposure to the UV light might not be feasible. While this study is promising, additional studies need to be done before promoting this as a safe and effective means of killing SARS-CoV-2 in an occupied environment.
Sources: 1) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6059456/
2) https://onlinelibrary.wiley.com/doi/abs/10.1111/php.13269
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