'Midwives' assist dividing amoebae
نویسندگان
چکیده
منابع مشابه
Midwives for midwives. Protecting the sacred circle.
María Catalina lives in a small village called Áto, about an hour and a half walk from Antigua, a colonial city in the Guatemalan highlands. The region is surrounded by volcanoes, and is an agricultural center for the production of corn and coffee. Catalina looks much older than her 38 years, and is plagued by chronic health problems stemming from a life of poverty and hard physical labor. She ...
متن کاملAmple dividing
We construct a stable one-based, trivial theory with a reduct which is not trivial. This answers a question of John B. Goode. Using this, we construct a stable theory which is n-ample for all natural numbers n, and does not interpret an infinite group.
متن کاملThe social amoebae.
Noted biologist and author John Tyler Bonner has experimented with cellular slime molds for more than sixty years, and he has done more than anyone else to raise these peculiar collections of amoebae from a minor biological curiosity to a major model organism--one that is widely studied for clues to the development and evolution of all living things. Now, five decades after he published his fir...
متن کاملMidwives' Midwifery
pillow. Her countenance indicated exhaustion, and she did not wish to be disturbed ; preferring, as she said, death to any further interference. Her friends stated that labour pains set in four days before, and that the membranes broke and the waters were discharged thirty hours previous to my visit. The pains having been slight, and the labour having made no advance, midwives of repute were se...
متن کاملAmoebae anticipate periodic events.
When plasmodia of the true slime mold Physarum were exposed to unfavorable conditions presented as three consecutive pulses at constant intervals, they reduced their locomotive speed in response to each episode. When the plasmodia were subsequently subjected to favorable conditions, they spontaneously reduced their locomotive speed at the time when the next unfavorable episode would have occurr...
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ژورنال
عنوان ژورنال: Nature
سال: 2001
ISSN: 0028-0836,1476-4687
DOI: 10.1038/35068628