duffpkg

I am absolutely not in the UK. I am in the southwest.

This article headline is a gross abuse of the conclusions of the actual study which is here: https://www.eurosurveillance.org/content/10.2807/1560-7917.E...

This site is full of people perfectly capable of reading most studies. I would much rather see these links go to studies than endless clickbait articles about studies.

The conclusion of the study show that about 30% of the women in the study from 2017-2014 tested positive for one of several types of HPV infection. This does appear to be a reduction from an earlier 2013 study but the earlier study was by different authors with different methodology so gauging the scale of the reduction is not straightforward. My opinion is that a safe conclusion of the study is that HPV prevalence has not increased.

It is in a utility room with some normal fire resistant features, walls are block and the electric inverters are mounted to cement board. The batteries cells themselves are in the steel cased battery boxes which help to limit potential fire risk. Very importantly these are lithium iron phosphate NOT lithium ion. There is still some fire risk with lifepo3 batteries but it is completely different than the thermal runaway possible with lithium iron.

Absolutely. Clouds also have a profound effect on solar output, I think much more than people realize. I am not english but my understanding is that london has a lot of clouds.

That is a much more complex topic driven by the regulations where you live. Where my house is, there is more or less no regulation and you can do as you please. In a purely technical sense there is not a lot of knowhow beyond basic electrical understanding, to setup these systems. Physically speaking these 280ah or larger battery setups are VERY heavy, hundreds of pounds per unit.

This area has few days over 100 but does see relatively cool nights. It is an ideal area for this. I would say from southernmost california to southernmost texas, this basic setup is pretty workable and that includes something around 50 million americans. Regulator hurdles in some places make it impossible though. Costs are going to scale up mostly in line with the heating/cooling requirements and cloudiness of your area.

My panels are ground mounted and pointed in the ideal direction. I think this contributes to their efficiency because the ground helps cool them during the hottest periods but it is a tricky thing to nail down. On a previous home I had roof mounted panels and they seemed to perform much worse, difficult to identify the exact reason though.

My battery is 3 separate "48v" x 280ah units in parallel. There is no grid so I am not sure what you mean by coupled. The batteries output DC to inverters which output AC. It is several years old at this point, probably the better value is in "48v" x 320ah setups now. The breakers/busbars, etc are setup for max discharge of 200A but in practice I have never gotten anywhere near that.

People seem to get really mad and accusatory over these sorts of things which is why I hate posting brands and such. The information changes very frequently as to what the "best" offer is. The diysolarforum is a very good resource to find the latest information.

In it's location the solar is very effective, the 4kw is the actual generation rather than a label rating. 100% full sun, no shade, no clouds. The array typically generates over 20kw per day. The house is pretty efficient and the weather is very nice both summer and winter. This is not an area with a harsh winter or summer.

Shade and clouds of any kind, even very minor, have a HUGE effect on the production of a solar array.

If I had to recommend in all in one kit, this september 2025, I would recommend an EG4 kit from Santan Solar. At brief glance they appear to be a stronger value and is from a company with a pretty strong customer service record. This is not sponsored in anyway.

I did not name specifics because things are constantly changing in this market and these threads tend to live for years. Stock and prices are constantly changing but RUiXU, EG4 and EcoWorthy are widely available brands with UL listed options. Will Prowse's website has a page dedicated to code compliant batteries and there are several long lists and excel sheets on the diysolarforum.

In that part of southwest there are only a handful of cloudy days per year and at a relatively low latitude.

It would be multiple batteries totaling that. Stock and prices are constantly changing but RUiXU, EG4 and EcoWorthy are widely available brands with UL listed options. Will Prowse's website has a page dedicated to code compliant batteries and there are several long lists and excel sheets on the diysolarforum.

I have a home in the southwest that is offgrid and runs entirely off solar. It has a 43kwh battery that covers 100% of it's needs including AC. It has a 4kw solar array.

The batteries shipped to your home inclusive of all taxes and fees, UL listed, are only $5,400 today from a variety of reputable suppliers.

This is obviously different than urban london but I wanted to point out just how economical this is for huge swaths of the country and how absolutely absurd some of the pricing I see on things like tesla powerwall are.

Note: There are a lot of components to an installed battery system that effect pricing such as racking, wires, busbars, breakers, etc, etc. I am referring only to the enclosed battery units with BMS.

This is a sketchy article about a study which is not even named because it has not yet been presented. It will be presented in the next week. I would take this entire thing with a grain of salt.

The article differs substantively from the actual conclusions of the study. This study shows a minor correlation in some bacterial DNA "signatures" in arterial plaque in about 200 people (~40% had the correlated bacteria). The study only included tissues from people who died of heart disease or had surgery related to heart disease. There does not currently appear to be a strong baseline about how widespread this bacterial signature may exist in a broad population regardless of health.

In a nutshell there is a slightly interesting idea that deserves further study. That's it.

One of the hugely important takeaways of this study is that even though the therapy was applied at the site of the most significant tumor, the immune response appeared to trigger against presumably ALL tumors throughout the body.

For a very long time I have also used unique emails for each respective service that involves in email. When I sign up for npm it is something like email_npm@example.com . This makes it very easy to whitelist and also spot phishing emails because if an email for npm is coming to mail_cccoffee@example.com it screams that something is wrong. It is not bulletproof by any means but an additional layer that costs me almost nothing but requires effort on the part of attackers.

Managed large health groups for a long time, we actually care about security, billion of patient interactions, never a compromise. I managed the modernization of the payment platform for the largest restaurant in the world. Billions of dollars a year. Early thing we did was freeze versions, maintain local package repos, carefully update. It is very concerning how rare these things are done. Tens of thousands of random people are in the core supply chain of most node projects and there seems to be a lot of carelessness of that fact.

Probably a few hours per year. I occasionally vacuum the dust filters and check to make sure everything seems in order.

This is a "metastudy".

This headline is heavily editorialized and does not correspond with the title or findings of the study linked.

I have a home in the southwest that is off grid and runs on solar plus lifepo3 batteries. It has been 5+ years now. My cost per kwh is below $0.008 as of today including all capital and maintenance. These numbers get a bit complicated, for example I run the AC much colder than I would if I was paying more for it. I have extra fridges and freezers I probably wouldn't if I had to pay higher per kwh. I "throw away" a lot of power too that I am not counting when the batteries fill up.

I have about 40kwh of storage. The batteries are in steel boxes and there are some basic precautions to take with them but lifepo3 has a very manageable risk profile quite different from lipo. Batteries and solar equipment continue to get cheaper, the same system I have is now 50% cheaper today then when I bought it, including tariffs.

The link really discusses more of a single neighborhood or medium industrial site possible type of technology. Really just a huge very hot pile of sand and steam turbine or propane cell generation. On a kwh basis it is probably not competitive with solar+battery unless your use case involved a lot of direct use of hot water or heating something.

This also makes it infinitely more useful for healthcare. Not healthcare software specifically. Lots of use cases in logistics, irl maintenance, etc. Patient data creates hipaa challenges and tends to overflow into any system.

This is a study done on cell cultures. It should NOT be used to influence behaviors regarding human health. The article linked makes a lot of leaps not supported by the study itself.

Link to actual study: https://journals.physiology.org/doi/full/10.1152/japplphysio...

FOBT which you can do painlessly at home for a few dollars is not meaningfully less preventative than an invasive colonoscopy and carries almost no risk. https://www.nejm.org/doi/full/10.1056/NEJMoa2208375

CAR-T and closely related immunotherapies are the definitive breakthrough. It will continue to get more and more effective against more and more types of cancers. The research issues surrounding them now are about cost and about how to manage the potentially fatal complications from using it against certain situations, especially developed solid tumors.

In "Skunk Works: A Personal Memoir of My Years at Lockheed", which is a great read, there is discussion of the incredibly difficult time they had setting up tooling for working with titanium. This remains largely true today. Making things at any scale in titanium, while controlling cost is very, very difficult. Even if the titanium itself is gotten very cheaply.

Even with tariffs batteries are very cheap. Into the 4 year mark my cost per kwh is down below $0.02 because I end up using excess power for all sorts of things because it is "free".

https://news.ycombinator.com/item?id=40877337

Location: Phoenix/Los Angeles

Remote: yes

Willing to relocate: no

Technologies: Advisor, Architect, Team leader. Extensive experience in payments and healthcare including fortune 500. Created the open source HealthCloud/ClearHealth EMR. Author of "Hacking Healthcare". Experience leading AI assisted development teams.

Resume/CV: Advisor, Architect, Team leader. Extensive experience in payments and healthcare including fortune 500. Created the open source HealthCloud/ClearHealth EMR. Author of "Hacking Healthcare". Experience leading AI assisted development teams.

LinkedIn: https://www.linkedin.com/in/duff-uhlman

Email: du@50km.com