Recent comments in /f/science

Wagamaga OP t1_j7ysg2f wrote

Reply to The discovery of fossils dating back 250.8 million years near the Guizhou region of China suggests that complex ecosystems were present on Earth just one million years after the Permian-Triassic mass extinction, which is much earlier than previously thought. by Wagamaga

About 250 million years ago, the Permian-Triassic mass extinction killed over 80 per cent of the planet's species. In the aftermath, scientists believe that life on earth was dominated by simple species for up to 10 million years before more complex ecosystems could evolve. Now this longstanding theory is being challenged by a team of international researchers – including scientists from McGill University and Université du Québec à Montréal.

A fossilized ocean ecosystem Until now, scientists have long theorized that scorching hot ocean conditions resulting from catastrophic climate change prevented the development of complex life after the mass extinction. This idea is based on geochemical evidence of ocean conditions at the time. Now the discovery of fossils dating back 250.8 million years near the Guizhou region of China suggests that complex ecosystems were present on Earth just one million years after the Permian-Triassic mass extinction, which is much earlier than previously thought

https://www.science.org/doi/10.1126/science.adf1622

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AutoModerator t1_j7ysejw wrote

Reply to The discovery of fossils dating back 250.8 million years near the Guizhou region of China suggests that complex ecosystems were present on Earth just one million years after the Permian-Triassic mass extinction, which is much earlier than previously thought. by Wagamaga

Welcome to r/science! This is a heavily moderated subreddit in order to keep the discussion on science. However, we recognize that many people want to discuss how they feel the research relates to their own personal lives, so to give people a space to do that, personal anecdotes are allowed as responses to this comment. Any anecdotal comments elsewhere in the discussion will be removed and our normal comment rules apply to all other comments.

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Sgt_Munkey t1_j7yq5vp wrote

Reply to According to a study on 12,211 patients, aspirin is just as effective at preventing blood clots as low molecular weight heparin, but it costs less and is easier to administer by giuliomagnifico

Just recovering from a smashed ankle and have to inject dalteparin daily. I hate needles, and wish this was prescribed instead... Perhaps it may be useful for a period of time when my lmwh course ends if I'm still stuck in bed elevating my leg...

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AutoModerator t1_j7yft36 wrote

Reply to Following extensive electrochemical performance experiments, a research team has found a specific composition that could open doors to high-performance magnesium rechargeable batteries. Substituted magnesium-vanadium systems could eventually lead to the much awaited next-generation batteries. by rustoo

Welcome to r/science! This is a heavily moderated subreddit in order to keep the discussion on science. However, we recognize that many people want to discuss how they feel the research relates to their own personal lives, so to give people a space to do that, personal anecdotes are allowed as responses to this comment. Any anecdotal comments elsewhere in the discussion will be removed and our normal comment rules apply to all other comments.

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YepYep123 t1_j7yfg7i wrote

Reply to According to a study on 12,211 patients, aspirin is just as effective at preventing blood clots as low molecular weight heparin, but it costs less and is easier to administer by giuliomagnifico

It’s important to look at what they define as their primary outcome.

Aspirin was non-inferior to LMWH when it came to death from any cause. However, the rates of venous thrombosis (which is what ASA and LMWH are trying to prevent) was higher in the aspirin group. It was only 0.8% higher, though in a study of over 12 000 patients that equates to an extra 1000 people getting a blood clot and this was statistically significant.

While these blood clots may not have increased mortality, that doesn’t mean they have no morbidity. Patients can get chronic symptoms of swelling and pain after a DVT (called post thrombotic syndrome). This is reported in around 20-50% of patients with DVT, so conservitavely 200 people on the study are likely to have long term symptoms (often lifelong) as a result of being randomized to aspirin. While more rare, there is also risk of cardiac and lung complications after a pulmonary embolism (such as pulmonary hypertension) which can be quite severe.

At my hospital, nearly all patients are on LMWH for VTE prevention and complications from this are exceedingly rare. If it were me in hospital with a fracture, I’d take LMWH over ASA any day.

Source: Hematologist who sees people on blood thinners every working day.

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AnnexBlaster t1_j7yevf3 wrote

Reply to comment by BuggerMyElbow in According to a study on 12,211 patients, aspirin is just as effective at preventing blood clots as low molecular weight heparin, but it costs less and is easier to administer by giuliomagnifico

Theres proteins in Staph aureus called clumping factors which active platelets, and pore forming exotoxins called alpha hemolysins which cause major damage.

Sepeis varies a great deal between bacteria, the toxins from different pathogens determine whether your immune system will win, or how fast and painful your death will be

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megapighead t1_j7ycw35 wrote

Reply to comment by Pleasant__Bumblebee in Researchers Block Allergic Reactions to Peanuts in Mice – In an important first step to protect against peanut allergies in humans, researchers used a first-in-class allergen-specific inhibitor to prevent allergic reactions in humanized mouse models. by swhelan_tn

I relate to this so much. I also have a severe peanut allergy, can't go anywhere without some level of anxiety.

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dumbest_smartass t1_j7y7u8b wrote

Reply to Analysis: Cannabis Products Mitigate Need for Other Prescription Medications in Chronic Pain Patients by GivenAllTheFucksSry

:( I miss the pain meds that work best for me. Mmj made life manageable. Especially parenthood as a single parent, it made my chronic pain almost nonexistent with the presence of my child. (Never consumed in the same vicinity or while child was awake or able to smell or see it, before the mombies and other undesirables try piping in.)

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BuggerMyElbow t1_j7y68tl wrote

Reply to comment by AnnexBlaster in According to a study on 12,211 patients, aspirin is just as effective at preventing blood clots as low molecular weight heparin, but it costs less and is easier to administer by giuliomagnifico

What are the toxins involved in sepsis and where do they come from?

I'd imagine they come from the bacteria, so lipopolysaccharides/endotoxin? Are these responsible for platelet malfunction?

Also how does sepsis vary depending on the species and strain of bacteria?

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AutoModerator t1_j7y526u wrote

Reply to Analysis: Cannabis Products Mitigate Need for Other Prescription Medications in Chronic Pain Patients by GivenAllTheFucksSry

Welcome to r/science! This is a heavily moderated subreddit in order to keep the discussion on science. However, we recognize that many people want to discuss how they feel the research relates to their own personal lives, so to give people a space to do that, personal anecdotes are allowed as responses to this comment. Any anecdotal comments elsewhere in the discussion will be removed and our normal comment rules apply to all other comments.

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

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zero0n3 t1_j7y4y29 wrote

Reply to comment by ohgoshyes in Researchers find that outdoor cannabis can "express more cannabinoids with potentially desirable bioactivity" compared to cannabis cultivated indoors under artificial lights. by OregonTripleBeam

CMH bulbs were designed by the military for subs and replicate the wavelengths used by the sun.

Here’s some old but accurate info: https://migrolight.com/blogs/grow-light-news/grow-light-spectrum-explained

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