Quanta
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![[:es]Mathematicians Begin to Tame Wild ‘Sunflower’ Problem[:]](https://katedra.eus/app/uploads/2019/10/Sunflower_1300lede-scaled.jpg)
[:es]Mathematicians Begin to Tame Wild ‘Sunflower’ Problem[:]
A major advance toward solving the 60-year-old sunflower conjecture is shedding light on how order begins to appear as random systems grow in size.
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![[:es]Inherited Learning? It Happens, but How Is Uncertain[:]](https://katedra.eus/app/uploads/2019/10/FILM_2880x1220Lede-scaled.jpg)
[:es]Inherited Learning? It Happens, but How Is Uncertain[:]
Studies suggest that epigenetics allows some learned adaptive responses to be passed down to new generations. The question is how.
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![[:es]How Randomness Can Arise From Determinism[:]](https://katedra.eus/app/uploads/2019/10/RandomnessPuzzle_2880x1640-Lede-scaled.jpg)
[:es]How Randomness Can Arise From Determinism[:]
Playing with a simple bean machine illustrates how deterministic laws can produce probabilistic, random-seeming behavior.
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![[:es]With Category Theory, Mathematics Escapes From Equality[:]](https://katedra.eus/app/uploads/2019/10/Category_Theory-fig1.jpg)
[:es]With Category Theory, Mathematics Escapes From Equality[:]
Two monumental works have led many mathematicians to avoid the equal sign. Their goal: Rebuild the foundations of the discipline upon the looser relationship of “equivalence.” The process has not […]
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![[:es]How Jurassic Plankton Stole Control of the Ocean’s Chemistry[:]](https://katedra.eus/app/uploads/2019/10/Chimileski_Chalk_1300Lede-scaled.jpg)
[:es]How Jurassic Plankton Stole Control of the Ocean’s Chemistry[:]
Only 170 million years ago, new plankton evolved. Their demand for carbon and calcium permanently transformed the seas as homes for life.
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![[:es]Cell-Bacteria Mergers Offer Clues to How Organelles Evolved[:]](https://katedra.eus/app/uploads/2019/10/MealyBug-DNA_2880x1620_Lede-scaled.jpg)
[:es]Cell-Bacteria Mergers Offer Clues to How Organelles Evolved[:]
Cells in symbiotic partnership, nested one within the other and functioning like organelles, can borrow from their host’s genes to complete their own metabolic pathways.
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![[:es]Your Brain Chooses What to Let You See[:]](https://katedra.eus/app/uploads/2019/10/Osprey_LedeFullWidth-scaled.jpg)
[:es]Your Brain Chooses What to Let You See[:]
Beneath our awareness, the brain lets certain kinds of stimuli automatically capture our attention by lowering the priority of the rest.
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![[:es]To Pay Attention, the Brain Uses Filters, Not a Spotlight[:]](https://katedra.eus/app/uploads/2019/09/Tuning-Attention_2880x1620_Lede-scaled.jpg)
[:es]To Pay Attention, the Brain Uses Filters, Not a Spotlight[:]
A brain circuit that suppresses distracting sensory information holds important clues about attention and other cognitive processes.
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![[:es]Math Reveals the Secrets of Cells’ Feedback Circuitry[:]](https://katedra.eus/app/uploads/2019/09/CellFeedback_2880x1620-Lede-scaled.jpg)
[:es]Math Reveals the Secrets of Cells’ Feedback Circuitry[:]
Maintaining perfect stability through negative feedback is a basic element of electrical circuitry, but it’s been a mystery how cells could do it — until now.
