Recent comments in /f/science

jl_theprofessor t1_jebfmhk wrote

Reply to comment by NPC_over_yonder in You might like paintings more if you stop to read the gallery labels - people high in openness, and those with limited art experience, liked paintings more after reading information about the artist and their technique. by Litvi

Like people enjoy taking pot shots at post modernist art without taking into account the environment in which it was created and what it was reacting to. But stopping to read the context helps understand why it was produced.

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jl_theprofessor t1_jebfazb wrote

Reply to You might like paintings more if you stop to read the gallery labels - people high in openness, and those with limited art experience, liked paintings more after reading information about the artist and their technique. by Litvi

Oh I do this all the time at every gallery. The context in which art was produced is important to understanding it. I see too many people making quick circles through galleries and not reading anything.

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Joks_away t1_jebbvrb wrote

Reply to New research demonstrates that manipulating blood flow in the brain with visual stimulation induces complementary fluid flow. The findings could impact treatment for conditions like Alzheimer’s disease, which have been associated with declines in cerebrospinal fluid flow. by Wagamaga

I could have told you that stimulating the male brain with the correct images will just about always result in a complimentary fluid flow. You could probably full an Olympic swimming pool with the complimentary fluid that Porn Hub stimulates each day.

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dumnezero t1_jebbtgn wrote

Reply to comment by AskMoreQuestionsOk in The advantages of living in cities for children and adolescents’ healthy growth and development are shrinking across much of the world, according to new study. by chrisdh79

Height isn't necessarily an advantage, height is correlated with a bunch of health problems related to circulation and nerves. There are also associations with diseases, here's a fun article: https://www.nature.com/articles/nature.2012.10517

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DoctorSeis t1_jeb7ycw wrote

Reply to comment by sfzombie13 in Researchers Show Optical Fiber Communication Cables Can Warn Against Earthquakes by HeinieKaboobler

My apologies for being unclear. I'm not trying to be difficult, just genuinely curious about the differences in sensitivities /capabilities between something like fiber optic DAS and the OTDR device you mentioned previously.

Like I discussed earlier, I am familiar with fiber optic DAS interrogators and how they can be used to detect minute changes in strain across a specific location along a fiber optic cable (using Rayleigh backscattering), but what remains a question is if other telecom related hardware (e.g., these OTDR devices that seem to be geared more towards finding line segments permanently damaged by high strain events) are sensitive enough to detect changes associated with much smaller levels of strain (that don't damage the cable)? That's the question. Like for one of these subsea cables, do they have to alter the way they send/receive signals through the fiber optic lines depending on if it is low vs. high tide? Could you hook up an OTDR device to one of these subsea fiber optic cables and (without looking at the water level) tell if it was high vs. low tide? I believe you can do this using fiber optic DAS, but I don't have experience with other telecom-specific hardware/diagnostics and if they are designed with that level of sensitivity.

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Wagamaga OP t1_jeb2hlf wrote

Reply to New research demonstrates that manipulating blood flow in the brain with visual stimulation induces complementary fluid flow. The findings could impact treatment for conditions like Alzheimer’s disease, which have been associated with declines in cerebrospinal fluid flow. by Wagamaga

Researchers at Boston University, USA report that the flow of cerebrospinal fluid in the brain is linked to waking brain activity. Led by Stephanie Williams, and publishing in the open access journal PLOS Biology on March 30th, the study demonstrates that manipulating blood flow in the brain with visual stimulation induces complementary fluid flow. The findings could impact treatment for conditions like Alzheimer’s disease, which have been associated with declines in cerebrospinal fluid flow.

Just as our kidneys help remove toxic waste from our bodies, cerebrospinal fluid helps remove toxins from the brain, particularly while we sleep. Reduced flow of cerebrospinal fluid is known to be related to declines in brain health, such as occur in Alzheimer’s disease. Based on evidence from sleep studies, the researchers hypothesized that brain activity while awake could also affect the flow of cerebrospinal fluid. They tested this hypothesis by simultaneously recording human brain activity via fMRI and the speed of cerebrospinal fluid flow while people were shown a checkered pattern that turned on and off.

Researchers first confirmed that the checkered pattern induced brain activity; blood oxygenation recorded by fMRI increased when the pattern was visible and decreased when it was turned off. Next, they found that the flow of cerebrospinal fluid negatively mirrored the blood signal, increasing when the checkered pattern was off. Further tests showed that changing how long the pattern was visible affected blood and fluid in a predictable way, and that the blood-cerebrospinal fluid link could not be accounted for by only breathing or heart rate rhythms.

https://www.newswise.com/articles/fluid-flow-in-the-brain-can-be-manipulated-by-sensory-stimulation

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AutoModerator t1_jeb2d2z wrote

Reply to New research demonstrates that manipulating blood flow in the brain with visual stimulation induces complementary fluid flow. The findings could impact treatment for conditions like Alzheimer’s disease, which have been associated with declines in cerebrospinal fluid flow. by Wagamaga

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newsreadhjw t1_jeb0cpa wrote

Reply to A study using eggs reveals why Italian Renaissance masters – artists such as Sandro Botticelli and Leonardo da Vinci – might have added protein to their oil paintings. by molrose96

I’m a little surprised the way this is written as if it’s some kind of discovery that egg protein was found in paint. Painters have been using egg tempera technique for a really long time. I’m no art expert but I did catch an Andrew Wyeth exhibit once and I remember they talked about this a lot. I thought it was well understood how this worked.

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Discount_gentleman t1_jeaux0g wrote

Reply to You might like paintings more if you stop to read the gallery labels - people high in openness, and those with limited art experience, liked paintings more after reading information about the artist and their technique. by Litvi

Yep, I always read the labels and it helps my appreciation. I need something to connect me to what are often abstract concepts. Most of the art in museums or galleries is from a person different enough in time/place/culture that it takes me more time that I have available to cross that gulf and understand the subtleties in what they are saying. Labels help.

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