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Re: DB's absolutely amazing sci/tech thread

Posted: 21 Nov 2017, 18:37
by the innominate one
Very interesting, and there has previously been some discussion a few years ago about differences in model animals' reaction by the sex of the researchers. I wonder if the animals used in this experiment you linked were all-male, as is typical for research, and if the reaction to researcher sex is consistent or opposite between the sexes of the specimens.

Isn't this thus likely another case where mouse models don't apply to humans?

Re: DB's absolutely amazing sci/tech thread

Posted: 21 Nov 2017, 18:51
by thoreau
Let's talk about what REALLY matters: How can we fit this into American academia's fucked up "conversations" about gender and STEM?

Re: DB's absolutely amazing sci/tech thread

Posted: 21 Nov 2017, 18:54
by thoreau
More seriously, I wonder what other odors are affecting the results of mouse experiments. Does the lunch that the grad student ate before handling the mouse matter for certain experiments? What if the postdoc has a cat at home? What if the grad student is wearing perfume? Or a scented deodorant? The list could go on. There might be all sorts of sources of noise that we're not even aware of, experiments explained by the fact that the postdoc who handled the mice was taking care of a baby who threw up a lot.

Re: DB's absolutely amazing sci/tech thread

Posted: 21 Nov 2017, 19:12
by the innominate one
Good points. Maybe live animal specimens should consistently be handled in glove boxes, at a minimum.

Re: DB's absolutely amazing sci/tech thread

Posted: 02 Dec 2017, 20:24
by dbcooper
Looking to cure Type 1 diabetes, investors front $114M to launch a pioneering human study at Semma
Three years ago, Harvard’s Doug Melton published a landmark study outlining how he had successfully used stem cells to create insulin-producing pancreatic beta cells that were inserted in bulk into mice and successfully protected from an immune response — a breakthrough in regenerative medicine that bore real promise to provide a curative approach for Type 1 diabetes that could conceivably end a lifetime of insulin shots.

It was the culmination of 23 years of lab work, launched when his son was diagnosed with Type 1 diabetes. And that achievement marked the beginning of something new in biotech.
26 years and counting of work ...

Re: DB's absolutely amazing sci/tech thread

Posted: 11 Dec 2017, 15:16
by JD
NASA and Google have some big announcement to make on Thursday, but they're being all coy about exactly what it is: http://www.popularmechanics.com/space/t ... -thursday/

Re: DB's absolutely amazing sci/tech thread

Posted: 11 Dec 2017, 16:28
by Kolohe
JD wrote:
11 Dec 2017, 15:16
NASA and Google have some big announcement to make on Thursday, but they're being all coy about exactly what it is: http://www.popularmechanics.com/space/t ... -thursday/
Image
It's probably not aliens.
Image

Re: DB's absolutely amazing sci/tech thread

Posted: 26 Jul 2018, 14:11
by Aresen
General Relativity passes another test
For more than 20 years, a team of astronomers has tracked a single star whipping around the supermassive black hole at the center of our galaxy at up to 25 million kilometers per hour, or 3% of the speed of light. Now, the team says the close encounter has put Albert Einstein’s theory of gravity to its most rigorous test yet for massive objects, with the light from the star stretched in a way not prescribed by Newtonian gravity. In a study announced today, the team says it has detected a distinctive indicator of Einstein’s general theory of relativity called “gravitational redshift,” in which the star’s light loses energy because of the black hole’s intense gravity.

Re: DB's absolutely amazing sci/tech thread

Posted: 27 Jul 2018, 14:49
by JD

Re: DB's absolutely amazing sci/tech thread

Posted: 27 Jul 2018, 18:43
by Eric the .5b
That took me a second. :)

Now, I want to do some kind of story where manned interstellar travel is a bust, as FTL doesn't exist, hibernation isn't feasible for mammals, and generation ships all turn into North Korea without the foreign aid. Except, we find out that there are interstellar travelers—they're just all aliens evolved from nematodes, tardigrades, or other things that can be safely frozen or dehydrated for journeys.

Re: DB's absolutely amazing sci/tech thread

Posted: 21 Aug 2018, 14:29
by JD
This could potentially be quite significant:
Scientists believe they have found a reliable way to transform donor blood into the universal type needed for safe, emergency blood transfusions.

The discovery is enzymes from gut bacteria that can efficiently turn type-A human blood into type-O.

Re: DB's absolutely amazing sci/tech thread

Posted: 07 Sep 2018, 14:26
by thoreau
This is pretty cool: Lenses for concentrating water waves, to improve harvesting of offshore wave energy.

https://physics.aps.org/articles/v11/89

Re: DB's absolutely amazing sci/tech thread

Posted: 07 Sep 2018, 14:51
by JD
thoreau wrote:
07 Sep 2018, 14:26
This is pretty cool: Lenses for concentrating water waves, to improve harvesting of offshore wave energy.

https://physics.aps.org/articles/v11/89
That is really cool. I think that ocean power generation is a field with a lot of potential, and it's good to see attention being paid to it.

Re: DB's absolutely amazing sci/tech thread

Posted: 14 Sep 2018, 12:47
by JD
The Northern mole vole, Ellobius talpinus, has X and Y chromosomes, and the chromosomes determine sex, as in humans. But its relative the Transcaucasian mole vole, E. lutescens, has no Y chromosome at all, and both sexes have XO chromosomes. And in the Zaisan mole vole, E. tancrei, both sexes have XX chromosomes. The Ryuku spiny rat and Tokunoshima spiny rat also have no Y chromosome anymore. Study of their genetics is ongoing: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5704219/

Re: DB's absolutely amazing sci/tech thread

Posted: 14 Sep 2018, 13:42
by thoreau
SCIENCE!!!!!111! PROVES THAT MALE AND FEMALE ARE CULTURAL CONSTRUCTS!!!!1!!!1!!11!

Re: DB's absolutely amazing sci/tech thread

Posted: 20 Sep 2018, 14:52
by JD
MDMA appears to affect octopuses similarly to how it affects humans. This is pretty amazing considering that they're not even in the same phylum as humans, we last shared a common ancestor about 800 million years ago (they are no more closely related to us than an earthworm or a butterfly is), and their brains are organized very differently from ours.

Re: DB's absolutely amazing sci/tech thread

Posted: 20 Sep 2018, 16:10
by Aresen
TESS has discovered its first exoplanet, only days into its mission: