Recent comments in /f/science

TurretLauncher OP t1_jc8icqz wrote

> The cost of solar power has dropped dramatically over the past decade, making it the cheapest source of electricity in much of the world. Clearly, that can mean cheaper power. But it also means that we can potentially install panels in places that would otherwise be too expensive and still produce power profitably.
>
> One of the more intriguing options is to place the panels above artificial bodies of water, either floating or suspended on cables. While more expensive than land-based installs, this creates a win-win: the panels limit the evaporation of water, and the water cools the panels, allowing them to operate more efficiently in warm climates.
>
> While the potential of floating solar has been examined in a number of places, a group of researchers has now done a global analysis and find that it's huge. Even if we limit installs to a fraction of the surface of existing reservoirs, floating panels could generate nearly 10,000 TeraWatt-hours per year, while keeping over 100 cubic kilometers of water from evaporating.
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> Obviously, that potential is not evenly distributed, with countries like Canada and the Nordics getting less sun exposure to benefit from. The biggest winner in floating solar would be the US, which has the potential for 1,900 TWh under the 30/30 limitations. The US is using about 3,900 TWh a year, so that works out to be just under half its electricity consumption.

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TurretLauncher OP t1_jc8htu5 wrote

Scientific paper here

Abstract

Growing global energy use and the adoption of sustainability goals to limit carbon emissions from fossil fuel burning are increasing the demand for clean energy, including solar. Floating photovoltaic (FPV) systems on reservoirs are advantageous over traditional ground-mounted solar systems in terms of land conservation, efficiency improvement and water loss reduction. Here, based on multiple reservoir databases and a realistic climate-driven photovoltaic system simulation, we estimate the practical potential electricity generation for FPV systems with a 30% coverage on 114,555 global reservoirs is 9,434 ± 29 TWh yr−1. Considering the proximity of most reservoirs to population centres and the potential to develop dedicated local power systems, we find that 6,256 communities and/or cities in 124 countries, including 154 metropolises, could be self-sufficient with local FPV plants. Also beneficial to FPV worldwide is that the reduced annual evaporation could conserve 106 ± 1 km3 of water. Our analysis points to the huge potential of FPV systems on reservoirs, but additional studies are needed to assess the potential long-term consequences of large systems.

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NOAEL_MABEL t1_jc8g7b9 wrote

This isn’t new, in fact, I believe the very first types of ‘cell therapies’ go as far back as the Egyptians when they noticed that tumors would shrink if you took pus and injected into a tumor. Of course the person died from sepsis, but it has been known for a long time that bacteria home towards the hypoxia environment in tumors and have anti-cancer properties. In fact, if you google hard enough you’ll find many companies out there who are pursuing this idea with genetically engineered live microbes for cancer treatments.

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quantumgpt t1_jc8fdbu wrote

Well this is oddly something I should consider. I take carnitine already for another reason. 1-3g per day.

Ala is probably one of the few things I seriously do not get enough of.

So I do have one other hope here. I noticed the study was with 8%. All of the OTC patches are .025. But some say they burn. Study didn't mention a burn. The study also appears to be branded. Is that the same capsaicin? I have located oils and extracts but still even pure extracts seem under 1%.

So is the study the same stuff?

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BlueSkyToday t1_jc8bywe wrote

I can't find the link right now but there was a very high quality study done a few years ago (IIRC it involved 20 hospitals and several thousand patients) using R-Alpha Lipoic Acid and L-Acetyl Carnitine.

Roughly 40% of the patients reported dramatic reduction in foot pain with a large fraction showing reinervation.

Both ALA and Carnitine have been used individually to teat diabetic neuropathy with mixed results. This study concluded that the trick was to combine them. IIRC they tried three different dosages and found a dose dependent response for the two lowest dosages and little/no benefit at the highest dosage (600mg R-ALA plus 1g L-Acetyl Carnitine, 3x a day).

It's important to use R-ALA. When ALA is synthesized, you get a mix of both isomers (R and S) but R is the only one that seems to be useful to the mitochondria. If you're buying ALA and it doesn't say R-ALA, you're buying a mix of both R-ALA and S-ALA.

https://geronova.com/consumers/different-forms-of-lipoic-acid/

FWIW, my experience (N=1) is that this eliminated my partner's unmanageable foot pain. She's seen all the various specialists at both Stanford and UCSF, done all the tests, and was told that the next (very painful) step was to the pain management clinic.

She told them what she was doing in later follow-ups with Stanford and UCSF Neurologists. They all said, 'Yeah, we use ALA for diabetic neuropathy'.

So, this isn't a guarantee, but it's got about a 40% success rate.

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BlueSkyToday t1_jc899wj wrote

I imagine that what you're saying is that just the multi-branched portion of the axion that's near the surface of the skin is what atrophies and then regenerates. Kind of like if I were to sever an axion and then regenerate from the stub.

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mgr86 t1_jc898we wrote

I work in academic publishing. In some cases, at least at our organization, we would just image the hand drawn table into the pdf. We digitize a lot of old academic material.

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halfchemhalfbio t1_jc87wi0 wrote

I actually have a story to tell about this. I have read a grant about Coley’s toxin but the professor is so old, he hand drawn his grant figures. I bet to covert that to pdf is also a great challenge for the person. It is very interesting idea though. It actually went into clinical trial in the 90s but just an IV injection.

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DisasterousGiraffe t1_jc850jk wrote

"Worldwide, climate change sceptics fall into three main categories.

First of all, you have the climate denialists, who are economically motivated. For example, fake activists are paid by the fossil fuel industries with the aim of delaying action against global warming. This has already been extensively documented.

Then there are the political climate sceptics, who reject the reality of global warming and denigrate the measures proposed to address it, mainly to undermine the political opponents who support these initiatives. They are not necessarily interested in global warming as such. The US elections saw a resurgence of climate scepticism because it provided an opportunity to attack the Democrats' environmental agenda.

And finally, a third category consists in geopolitical climate scepticism, originating in countries with totalitarian regimes. For these governments, such as the Kremlin, the climate crisis is a chance to divide populations and weaken democracies, as I explained in my book Toxic Data. For instance, we know that one of the strategies Putin uses to gain geopolitical influence is to carry out subversive operations on the social networks in a bid to weaken the democracies. His goal is to exacerbate internal divisions in order to alter social cohesion and ensure that the attention of governments is taken up by internal conflicts, or even, where possible, that these governments are themselves delegitimised.

The upsurge in climate change denialism that we've seen since the summer of 2022 appears to originate, in large part, in this third current.

We've come across accounts that initially spread dissension about Covid-19 vaccines, before relaying the Kremlin's propaganda about the war in Ukraine, and eventually defending climate-sceptic theories. 60% of the climate-denialist community active in 2022 took part in pro-Putin digital campaigns."

Investigating climate sceptics’ disinformation strategy on Twitter 03.13.2023, by Sebastián Escalón

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No_Dragonfly_1894 t1_jc84s4v wrote

Thank goodness. Twenty-five years ago, I had to have everything removed in my 30s, due to severe endometriosis (pain so severe I was suicidal), and I asked questions about it. The doctor said he didn't know a lot. I asked why and he said "no one cares enough about it to research." Glad to hear it's changing.

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elderrage t1_jc84hwg wrote

Have you tried a diet reducing or eliminating foods that may aggravate it? My arthritis almost disappears when I go on a keto diet or just stop sugar, bread and pasta. Best of luck!

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SupremelyUneducated t1_jc8443r wrote

Does this mean people living in urban environments would have more issues with cancer, than those living in forested rural environments? Assuming diet, exercise and what not are relatively the same. And because of more exposure to the bacteria in healthy/aerobic dirt.

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