A Concerned Scientist @BE@qoto.org

hi everyone, does anyone know of a beginner-friendly 'ethical hacking' course? i'm fairly new to the topic and feeling a bit overwhelmed, so i'm looking for something that's easy to understand and start with. thanks!! :)

#ethicalhacking #hacking #CyberSecurity

It turns out that indoor #gardening can help boost immune systems. #Science #Health #COVID19 https://www.ecowatch.com/urban-indoor-gardening-immune-health-soil-microbes.html

Soon the telescope platform at ESO's Paranal Observatory in #Chile will look very different at night: all four of the 8.2 m telescopes of the VLT will be equipped with lasers! This is one of the ongoing upgrades of the GRAVITY+ instrument, which will allow us to study black holes, stars and planets like never before.

Find out more in this great article by current and former ESO communication interns Elena Reiriz Martinez and Tom Howarth: https://www.eso.org/public/blog/gravity-leap-vlti/

#astrodon #astronomy #technology

Off Leash: Inside the Secret, Global, Far-Right Group Chat | Military contractor Erik Prince started a private WhatsApp group for his close associates that includes a menagerie of right-wing government officials, intelligence operatives, arms traffickers, and journalists. We got their messages.

https://newrepublic.com/article/182008/erik-prince-secret-global-group-chat-off-leash

I've been asked by a reviewer to calculate effect sizes for various tests we have in a paper. This is fine in the 2 sample case and makes sense to me, but for some of the analyses we use Levene's test to check for heteroscedasticity between \(k\) groups. The internet suggests that I calculate pairwise effect sizes between the groups, but this feels odd to me. Has anyone done this before and can provide any guidance? Thanks in advance!

#rstats

I've seen discussion around several in-person only events lately, where the organisers justify it by saying they can't get the best quality of conversation online.

Well, you can't get any of my conversation at an event I can't get to.

An in-person event that you have to travel to excludes people with caring responsibilities, disabilities, and limited funds.

"The big revelation here is that the risk persists for 3 years in several organ systems (e.g. GI and nervous system) even 3 years after a mild infection.

Healthcare professionals are taught that acute infections as short-term events with health effects that manifest around the time of infection.

The data challenges those teachings and shows that mild #Covid can still cause health effects even 3 years later.

Acute infections can have long-term health effects.

Covid continues to teach us something new at every turn and this is one very important new lesson.

Why is this be happening?

Possibly viral persistence (perhaps far more common than most people think), chronic inflammation or chronic immune dysfunction or all the above. ...

I want to make it clear that most people with Long Covid had mild COVID-19.

In fact, 90% of people with #LongCovid had mild
#COVID19. "

- Ziyad Al-Aly

May 30, 2024- “COVID can cause new health problems to appear years after infection, according to a study of more than 130,000 patients” - https://fortune.com/well/article/covid-cause-new-health-problems-years-after-infection/

A third U.S. farm worker infected with bird flu is the first to experience respiratory symptoms

A third human case of H5 bird flu tied to the ongoing U.S. outbreak in cattle has been detected in a farm worker in Michigan, state health authorities confirmed on Thursday.

https://www.statnews.com/2024/05/30/bird-flu-third-case-human-infection-caused-respiratory-symptoms/

There’s a lot of things I don’t understand, but here’s just one:

#Covid killed over a million people in the US and is still going strong.

Why does nobody talk about it?

That’s roughly 1 in 300 people.
You would know at least someone who died of it. Is it mass trauma?

PS If you have Audible credits leftover at the end of the month, why not treat yourself to one of my Premium Romance Audiobooks?

You can find links to all my books, as well as to my newsletter, tip jar, and wish list, on this links page, which is also always listed in my bio. 🙏 ❤️

https://adaraastin.ck.page/223e08bb72

#Audiobook #Audiobooks #Audible #Romance #Romancelandia @romancelandia @audiobooks @bookstodon

Ever wondered about the different types of CO2 sensors? Let’s dive into the world of NDIR, Photoacoustic, and MOX sensors and see what makes each one tick. #CO2sensors #AirQuality #technologies

NDIR (Non-Dispersive Infrared) sensors are like the royalty of CO2 sensors. They measure the amount of infrared light absorbed by CO2 molecules in the air. Fancy, right? 🌫️🔦

These NDIR sensors are known for their accuracy and stability. They don't get thrown off by humidity or temperature changes, making them the reliable friend you can count on. ✅📏

Dual-beam NDIR sensors are even cooler! They use two light paths: one for measuring CO2 and one as a reference. This helps them stay accurate by compensating for changes in light source intensity and sensor aging. Double the beams, double the fun! 🌟🔍

Then we have Photoacoustic sensors, which detect sound waves produced by CO2 molecules when they absorb light. These little guys are small, low-power, and perfect for those who need a compact solution. 🔊🔍

Photoacoustic sensors are super sensitive and provide accurate readings even at low CO2 levels. Plus, they're not bothered by environmental changes like humidity. 🌧️🎯

Now, let’s talk about MOX (Metal Oxide) sensors. They detect CO2 indirectly by measuring changes in the resistance of a metal oxide material when it interacts with gases. Think of them as the bargain hunters of CO2 sensors. 🧪💡

But beware! MOX sensors can be easily fooled. For example, if you use isopropyl alcohol nearby, they might think CO2 levels have skyrocketed. Not the best for accurate readings. 📉⚠️

Choosing the right CO2 sensor depends on your needs. For top-notch accuracy and reliability, NDIR and dual-beam NDIR are your best bet. For tiny, low-power needs, Photoacoustic sensors are the way to go. 🎯🔬

At http://CO2.click, we've got a range of sensors to fit your specific needs, ensuring you get the best performance. Check us out at https://co2.click for more info! 🌐🛠️ #AirQuality

If you found this post helpful, give it a like and share 🔁 so others can benefit too!

I found a tool to read the json files of my mastodon archive.

You have to download something and then open that with firefox, and then upload your archive in the thingy. I didn't have a targz file so then it's "manual" which is 4 files instead of 1. There are steps to guide you through it.

Thank you, someone at github, for making it accessible to non-tech-users.

I actually just wanted to see my own posts, without boosts, of a certain time period. This tool does that and there are some graphs too. Media doesn't show though, but you can easily open your original post via the tool.

It's this one: https://github.com/zero-mstd/mav-z

#IDMastodon #Neuroimmunology #Neuroinflammation #NeuroCOVID The prevalence of #neuropsychiatric symptoms was estimated according to a meta-analysis performed with 15 different peer-reviewed studies including 47,910 patients (age 17–87 years). Elevated levels of neurotoxic metabolites could indicate increased neuroinflammation and risk for developing neurological symptoms in #LongCovid ...

https://link.springer.com/article/10.1007/s15010-024-02293-y

#Covid day 3. The cat is losing her mind because I won’t let her into the isolation room. But I’ll be damned if I’m giving my cat Covid.

Y’all are going to roll your eyes, but just in case anyone needs to hear it, Amazon Clinic is a steaming pile of 💩. Get your Paxlovid prescription anywhere else.