Discover and read the best of Twitter Threads about #biology

Most recents (20)

1/ Woo! My monster paper with Matt Wilson, "Locomotor and Hippocampal Processing Converge in the Lateral Septum" was just released in @CurrentBiology!! Not only that, but I made a comic to describe my findings!! cell.com/current-biolog…
2/ We used tetrodes to record from CA1 hippocampus and dorsolateral lateral septum, an area innervated by all CA regions of the hippocampus and many regions involved in "motivational" behavior
3/ Some cells in the LS were linearly modulated by the animal's running speed (could be positively or negatively modulated!) and/or by the animal's acceleration (also could be positively or negatively modulated!)
Read 16 tweets
"You don't see radio changing gradually and suddenly become radar. #Darwin's theory doesn't work for #technology, and we have to make a new observation."

- W Brian Arthur at SFI today

#evolution #innovation #invention
"Novel technologies are constructed from existing technologies. These offer themselves as components for the construction of further technologies."

- W Brian Arthur at SFI today

#evolution #innovation #invention #technology #engineering #design
Unlike the two-parent #inheritance typical to (but not ubiquitous among) #complex organisms, #technology inherits features from n parents - a "vast ancestral #network" more like horizontal gene transfer networks in #bacteria.

W Brian Arthur on sumulating #invention on a chip:
Read 18 tweets
"Life did not invent #DNA."

Experimental support for the #hotsprings hypothesis for life's origin: David Deamer of @ucsc on nucleic acid polymerization in the wet-dry cycling of Darwin's "warm little pond," powered by #geothermal. Lab results confirmed in #hydrothermal pools.
From "boring statistical partitioning" in the fission of early protocells to the complex #homeostasis-driven #mitosis of the cells we know - Doron Lancet of @WeizmannInstSci on the gradient between closure of #autocatalysis #networks to complex regulatory mechanisms of #biology.
"Life is an integrated nested network of dynamic #kinetic cycles."

Addy Pross emphasizes the importance of motion to the persistent forms of self-organizing #complexsystems at SFI today
Read 13 tweets
"If I were to write a textbook on #complexity, it would be structured like this..."
- SFI Pres David Krakauer starts off this morning at #CSSS19 #CSSS at @IAIASantaFe

#error #adaptation #universality #coarsegrained #math #theory
"If you talk about #intelligence and #stupidity, you talk about #communication and #policy. That is the natural place to start."

"If you've ever written a Lokta-Volterra #equation, you've drawn a perpetual motion machine. There's no #dissipation."

- SFI President David Krakauer
"Why #God is a bad #theory: it's not because it's not true; it's because it uses an infinite-dimensional process to explain low-dimensional phenomena."

- SFI President David Krakauer at #CSSS19 on #Ockham's Razor & why #Darwin's animal breeding metaphor backfired on #evolution
Read 7 tweets
In July 1969 the Apollo 11 astronauts conducting several tasks during extravehicular activity (EVA) operations on the surface of the moon. The EVA lasted approximately 2.5 hours with all scientific activities being completed satisfactorily. #OneGiantLeap

#Apollo11 landed on the Moon on July 20, 1969.

That's #OneSmallStep for [a] man, #OneGiantLeap for mankind.

Read 54 tweets
Let's review who's really making more babies: How much sperm is released when a penis ejaculates? Sperm counts vary from about 20 million to 100 million sperm cells per *milliliter* of ejaculate. Healthy ppl produce from 1.5 ml to 5 ml of semen each time they ejaculate.
#biology
We all know the penis expects to ejaculate every time it has sex. And it can ejaculate multiple times per day with multiple partners. It can be makin' babies Every Day.
#biology #abortion
Ovaries release one (1) egg per month. That lonely egg is viable for only a few days per month. Once fertilized, the process, if uninterrupted, takes 37-42 weeks to complete. Breastfeeding can delay release of more eggs.
#biology #abortion
Read 5 tweets
1 YEAR OF @TheDissenterYT. THREAD WITH FIRST 132 INTERVIEWS.

I will be reposting all of the interviews I've done on the first year of the show, one per day, on this thread, with links to the new podcast.

@robsica @docamitay @vancitytaraxo @Muttmere1 @hfsunde @franciscforde
#1 Oren Amitay: Portuguese Bills on Transgender Rights. #psychology

Youtube:
Anchor: tinyurl.com/yaep3ne8

@docamitay @Muttmere1 @vancitytaraxo @robsica @franciscforde @YzarW @jimfrank @KarinLitzcke @Lauguerreiro
Read 159 tweets
Let’s talk about #lectures in HigherEducation
.@LangOnCourse alerts us to: When should we lecture in class? Excellent examples and analysis of the (positive) role of the lecture from @dgooblar chronicle.com/article/Is-It-#teaching #learning #lecture
.@mariosbham comments on "#Lectures: a much-maligned format which can be truly inspirational" #HigherEducation edudevelopmentbham.wordpress.com/2018/10/26/lec…
Read 48 tweets
Born & raised in #Fanar #Lebanon, a tiny country in the middle east with a lot to offer. I always had a positive outlook on life maybe because of the culture or values🤷‍♀️.
If you don't know #Lebanon or a #lebanese then you should start mingling 🤣
@IWS_Network #VoicesIWS
I grew up surrounded by a loving, joking & tough type of family that always support each other even amidst fighting. You can imaging being 4 kids in different age groups can cause a lot of fights growing up 😂 #siblingsfight #family #VoicesIWS
@IWS_Network
I have my issues🤷‍♀️! I always wanted to prove myself & make my family proud(2nd child). A pressure that was just in my head; they were always proud of us. I wanted to grow up to be a doctor or an army officer like my dad. Let's just say I changed my mind! #VoicesIWS @IWS_Network
Read 27 tweets
Sharing #MyStory as an #international #immigrant a part of @IWS_Network #Voices without #Frontiers initiative! As a #scientist and an advocate for #workplaceequality, I believe in the power of stories. #IWS #VoicesIWS #SayItForward #WomenInspire #WomeninScience #WomenInSTEM
As a child, how would you have liked moving schools in new cities with different cultures every 2-4 years?

Growing up in the #IndianArmy, I absolutely loved it! By the time I was 18, we had moved over 9 times across 9 states! #Diversity #India #TravelTuesday #IWS #VoicesIWS
My #memories of #India include sunny days, welcoming people, rich heritage, vibrant colors, abundant fruits and mouth-watering street food! #IWS #VoicesIWS
Read 39 tweets
Hello, I am Edna Matta. I was born in #Ibague, known as #Colombia’s #CityofMusic. A beautiful place near snow-covered volcanos (Ruiz, Santa Isabel and Tolima), large expanses of paramo forest, lakes and streams where a diverse array of animal and plant species coexist
My story starts with #powerful, #strong #women in my #family. I was the third of 4 children and my mom #firstMentor had to raise us practically alone, since my father had to work in a different city, 20h away by car
My mom is a very #strong #woman that taught me #values, to #workhard and to be #self-sufficient #StrongWomen #StrongFamily
@IWS_Network #VoicesIWS /1
Read 36 tweets
I was born and raised in the beautiful city of #Curitiba, southern #Brazil!
This region is famous for being cold and cloudy (yes it can be cold in Brazil!).
It is also famous for its very endemic and beautiful #Araucaria pine trees. #voicesIWS @IWS_Network @500womensci /1
#Actions speak louder than words! I am thankful for my parents for being who they are. Both always showed love for Nature, different interests and #curiosity! So no wonder by observing them I grew up to be a very curious girl who really loved Nature. #voicesIWS @IWS_Network /2
During High School I became fascinated by the #mendelian #genetics classes and the work of #gregormendel! I also loved studying animals, ecosystems and climate so the obvious choice for me in University (@PUCPR_oficial ) was BIOLOGY!! @IWS_Network #womeninscience #voicesIWS /3
Read 21 tweets
Got a seat right in the front at #CSPC2018 @sciencepolicy for the panel on #NextGenCanScience (science and the next generation) feat enablers of trainees getting involved in #scipol @ChiefSciCan @McGill_VPRI @katemoran Stacey Robinson and @DanWicklum
#CSPC2018 @ChiefSciCan mentions #Budget2018 reinvestments of 2.8B$ to create more collaborative infrastructure in govt labs and beyond. This is a once in a lifetime opportunity to get things right and elevate Canada in science leadership 🙌
📣 All major equipment in federal labs will be part of a registry and be accessible to everyone ➡️ democratizing the infrastructure of #cdnsci - @ChiefSciCan #CSPC2018 @sciencepolicy
Read 37 tweets
Next panel on #nextgen of problem solvers and enabling #interdisciplinarity, bringing trainee voices to the table 👏 #CSPC2018 @sciencepolicy
Ghose leads the #womeninscience Centre at @Laurier and works in physics and computer science ncl #quantum, and #interdisciplinary is just a big word to her. There is no choice to cross disciplines in her research, which also bridges into #SocialSciences #CSPC2018
Read 10 tweets
I was born & raised in #Medellin Colombia, an amazing & vibrant city in the middle of the mountains.

Please do not mention #Narcos or #Escobar when you hear Medellin!

Medellin is much more than that #eternalspring #innovation #Entrepreneurship #mountains #coffee #greatpeople
I was born & raised in #Medellin Colombia, an amazing & vibrant city in the middle of the mountains.

Please do not mention #Narcos or #Escobar when you hear Medellin!

Medellin is much more than that #eternalspring #innovation #Entrepreneurship #mountains #coffee #greatpeople
Went to a great school in #medellin & at 17 started #medicine not because I wanted to be a clinician but because I liked the #science & my family and #mentors told me #medicine was broader and could open more doors for me #VoicesIWS #Thread☝️@IWS_Network
Read 21 tweets
After a jam-packed 2 days at #SciOut18🌪(thx @ASBMB & @rockedu_!) it was time to reflect! 🤔 Reflection is so important, but it can be hard to find ⏰ to really just think! 💭 Some of my thoughts 👉 instagram.com/p/BokNO_NhihF/
#365DaysOfScience #biochemistry #scicomm #sciout #science person looking thoughtful in front of mirrornotebook pagenotebook pagenotebook page
What’s inside? 🧐 It’s FORMAMIDE! 🤗 Formally removing RNA’s form with formamide! 🤓 FORMAMIDE in loading buffer breaks up & replaces the bonds between bases holding RNA's shape together 👇
instagram.com/p/BomwR32B4MX/
#365DaysOfScience #biochemistry #scicomm #lifeinthelab #science person looking through safety goggles with formamide drawn on themformamide RNA denaturant explanation
Bring on the heat! 🔥 To help denaturants get to the huddling hydrophobic bases, we add heat ♨️ 👉 gives molecules more energy so they can “pull apart” more easily ⏩ easier access 👍 More 👇
instagram.com/p/Boo2yazBDDi/
#365DaysOfScience #biochemistry #scicomm #lifeinthelab #science person putting tube in heating block
Read 308 tweets
1/#WTOStc/@stuffofwar
The medieval formation & modern history of the Baltic States (Estonia, Latvia, & Lithuania) is a very intricate, difficult topic.
Sadly, key artefacts were deliberately blown up (Boris Stones) stolen (Euphrasia’s Cross) or erased (by propaganda or genocide)
2/#WTOStc
after the 1939 Soviet-Nazi pact such that the 1 artefact unifying the area in #medieval times - the COG ship used by Catholic Crusaders then adopted by Orthodox colonizers & Slavic tribes along the Neman, Daugava, Emmajõgi, Velikaya, & Volkhov Rivers - is terribly rare.
3/#WTOStc
Yet of the COG remains its MOSS - polytrichum commune - flourishing all over the region.
Since Soviet studies had to ignore dendochronology (tree-ring dating) & Chernobyl’s radiation (=false chemical dating) & skirt the limits of KGB monitoring,& since 1992 each free
Read 17 tweets
if you are interested in inviting me to speak at your college or conference, please check out my recently revamped booking webpage: juliaserano.com/booking.html – in this THREAD I will share some of my most requested talks...
my most frequently requested talk continues to be "Making Feminist and Queer Movements More Inclusive" – it is based on my 2nd book Excluded, although I've added some newer material to it in the last few years... juliaserano.com/booking.html#E… #feminism #LGBTQ #queer #activism
...another popular talk is "I'll See It When I Believe It: On Perception and Gender Entitlement" juliaserano.com/booking.html#s… #trans #transgender #feminism #gender #sexism
Read 10 tweets
I wrote this essay last year, but it seems even more relevant this year, sadly... medium.com/@juliaserano/t… #trans #transgender #queer #LGBTQ #feminism #biology #science
I get why "God made Adam & Eve, not Adam & Steve"-type conservatives want to dwell on "biological sex," as it seems consistent with their highly essentialist ideology. But I cannot fathom why any self-described #feminist would resort to this line of reasoning...
If we reduce people to their supposed "biological sex" & start regulating what they can (& cannot) do based on it, it basically opens the doors to discriminating against people for their sexual orientation & gender non-conformity...
Read 4 tweets
this hater apparently missed the part where I mentioned I was a biologist, nor did they bother reading any of the scientific articles I cited/linked to in the piece... medium.com/@juliaserano/t… #science #biology #sex #trans #transgender #LGBTQ
...I mean, this entire screed is a farce, but perhaps the most ridiculous part is the bit at the end about having to "mention evolution" in the first paragraph. I've read plenty of *actual scientific articles* on human sex & sexuality that don't mention evolution at all!
...it's like they're announcing to the world: "Hey, I obviously am not a scientist, but now I'm going to lecture you about what is science and what is not!"
Read 3 tweets

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