Tanta coisa e afinal o nosso antepassado comum media menos de 1mm e era um emoticon:
http://www.history.com/news/youll-never-guess-what-our-oldest-known-ancestor-looked-like
Citando:
"Meet Saccorhytus coronaries, the species that scientists in a new study believe is the earliest known step on the evolutionary path that led to fish and—eventually—to humans.
An international team of scientists uncovered the microfossils of the speck-size creature they are calling Saccorhytus coronaries in Shaanxi Province, central China. According to their findings, published this week in the journal Nature, Saccorhytus lived 540 million years ago, during the early Cambrian period, when a shallow ocean would have covered the region where it was found. At that advanced age, it is believed to be the oldest known member of a category of animals known as “deuterostomes,” which are common ancestors to a wide range of other species, from starfish, sea urchins and acorn worms to the large group classified as vertebrates (backboned animals)."
Mostrar mensagens com a etiqueta 2017-01. Mostrar todas as mensagens
Mostrar mensagens com a etiqueta 2017-01. Mostrar todas as mensagens
quarta-feira, 1 de fevereiro de 2017
segunda-feira, 30 de janeiro de 2017
Somos cuidadosos no RU!
O termo mulher grávida não deve ser usado porque pode ser considerado ofensivo:
http://www.telegraph.co.uk/news/2017/01/29/dont-call-pregnant-women-expectant-mothers-might-offend-transgender/
http://www.telegraph.co.uk/news/2017/01/29/dont-call-pregnant-women-expectant-mothers-might-offend-transgender/
sexta-feira, 27 de janeiro de 2017
quinta-feira, 26 de janeiro de 2017
terça-feira, 24 de janeiro de 2017
segunda-feira, 23 de janeiro de 2017
Quem diz mais asneiredo é mais honesto?
Quem diz mais asneiredo é mais honesto? Não necessariamente:
https://www.yahoo.com/news/people-swear-more-may-more-150000691.html
Citando:
""Honesty in our article is mainly about the authentic genuine expression of the self in interactions with others,” Feldman told Mashable. “We did not measure blunt unethical or immoral behavior, and therefore cautioned in the article that the findings should not be interpreted to mean that the more a person uses profanity the less likely he or she will engage in more serious unethical or immoral behaviors.”
In other words, this doesn't mean that people who swear more are somehow better people than those who don't. This study simply suggests that people who swear more demonstrate more honest language patterns and are less likely to pad their speech with lies or misleading information. "
https://www.yahoo.com/news/people-swear-more-may-more-150000691.html
Citando:
""Honesty in our article is mainly about the authentic genuine expression of the self in interactions with others,” Feldman told Mashable. “We did not measure blunt unethical or immoral behavior, and therefore cautioned in the article that the findings should not be interpreted to mean that the more a person uses profanity the less likely he or she will engage in more serious unethical or immoral behaviors.”
In other words, this doesn't mean that people who swear more are somehow better people than those who don't. This study simply suggests that people who swear more demonstrate more honest language patterns and are less likely to pad their speech with lies or misleading information. "
Esquecer o andar de bicicleta
Afinal o "é como andar de bicicleta" (não se esquece) não é válido:
http://www.dailymail.co.uk/news/article-4146462/One-eight-ride-bike-survey-finds.html
http://www.dailymail.co.uk/news/article-4146462/One-eight-ride-bike-survey-finds.html
domingo, 22 de janeiro de 2017
Abstinência aumenta longevidade?
Nas freiras sim, em algumas espécies também:
https://www.thesun.co.uk/living/2677263/experts-have-come-up-with-a-simple-way-to-live-for-longer-but-it-involves-giving-up-sex/
Citando:
"Even though the study is yet to be tested on humans, leader of research Dr Michael-Silva believes the same principle can be applied.
He explained: “Nuns tend to have a longer lifespan than women with children and most people know of someone with a maiden aunt who seems to live forever.
“The question is, why? The beetles which mate die sooner than the beetles which don’t mate.”
Not only is the immune system believed to weaken during sex, there is the added risk of contracting an STI."
https://www.thesun.co.uk/living/2677263/experts-have-come-up-with-a-simple-way-to-live-for-longer-but-it-involves-giving-up-sex/
Citando:
"Even though the study is yet to be tested on humans, leader of research Dr Michael-Silva believes the same principle can be applied.
He explained: “Nuns tend to have a longer lifespan than women with children and most people know of someone with a maiden aunt who seems to live forever.
“The question is, why? The beetles which mate die sooner than the beetles which don’t mate.”
Not only is the immune system believed to weaken during sex, there is the added risk of contracting an STI."
sábado, 21 de janeiro de 2017
Alternativa ao Nutella (Irlanda)
Aproveitando a oportunidade, empresa na Irlanda tem alternativa que não usa óleo de palma:
http://m.independent.ie/life/food-drink/food-news/this-irish-version-of-nutella-hits-the-same-spot-without-the-controversial-palm-oil-35384030.html
Citando:
"The Wyldsson product still contains 82kcal per 15g serving so while it is still suggested to be enjoyed in moderation, the hazelnut and cocoa spread contains much less refined sugar than its supermarket alternatives, and is sweetened using dates. Its list of ingredients is much shorter than Nutella’s and the product contains hazelnuts, dates, sunflower seeds, cashew nuts and Peruvian cocoa."
http://m.independent.ie/life/food-drink/food-news/this-irish-version-of-nutella-hits-the-same-spot-without-the-controversial-palm-oil-35384030.html
Citando:
"The Wyldsson product still contains 82kcal per 15g serving so while it is still suggested to be enjoyed in moderation, the hazelnut and cocoa spread contains much less refined sugar than its supermarket alternatives, and is sweetened using dates. Its list of ingredients is much shorter than Nutella’s and the product contains hazelnuts, dates, sunflower seeds, cashew nuts and Peruvian cocoa."
Chegada do homem à Austrália provocou extinção de espécies de maior porte
http://www.dailymail.co.uk/sciencetech/article-4141508/85-Australia-s-megafauna-went-extinct-45-000-years-ago.html
Citando:
"From 25-foot-long lizards to 2-ton wombats, more than 85% of Australia's large wildlife died out 45,000 years ago - and humans were to blame "
(...)
But researchers have found that shortly after humans arrived in Australia, more than 85 per cent of these 'megafauna' species went extinct.
The researchers suggest that humans may have hunted these animals to extinction - and even if humans killed one mammal per person per decade - it could have caused the extinction of a species in just a few hundred years.
A group of Australian megafauna species during the pleistocene era, drawn by Peter Trusler, an Australian palaeoaritst based at Monach University, Australia.
"According to the researchers, some of the megafauna that roamed Australia 50,000 years ago included 1,000 pound kangaroos, 2-ton wombats, 25-foot-long lizards, 400-pound flightless birds, 300-pound marsupial lions and Volkswagen-sized tortoises.
(...)
They used the sediment cores to help reconstruct what the climate and ecosystems were like in Australia at the time.
The sediment core is a type of time record of our planet - it contains chronological layers of sediment blown off from earth and into the ocean.
WHAT KINDS OF MEGAFAUNA WERE THERE?
Around 45,000 years ago, huge 'megafauna' species roamed around Australia.
But researchers have found that shortly after humans arrived in Australia, more than 85 per cent of these megafauna went extinct.
Some of these animals included:
•1,000 pound kangaroos.
•2-ton wombats.
•25-foot-long lizards.
•400-pound flightless birds.
•300-pound marsupial lion.
•Volkswagen-sized tortoises"
Citando:
"From 25-foot-long lizards to 2-ton wombats, more than 85% of Australia's large wildlife died out 45,000 years ago - and humans were to blame "
(...)
But researchers have found that shortly after humans arrived in Australia, more than 85 per cent of these 'megafauna' species went extinct.
The researchers suggest that humans may have hunted these animals to extinction - and even if humans killed one mammal per person per decade - it could have caused the extinction of a species in just a few hundred years.
A group of Australian megafauna species during the pleistocene era, drawn by Peter Trusler, an Australian palaeoaritst based at Monach University, Australia.
"According to the researchers, some of the megafauna that roamed Australia 50,000 years ago included 1,000 pound kangaroos, 2-ton wombats, 25-foot-long lizards, 400-pound flightless birds, 300-pound marsupial lions and Volkswagen-sized tortoises.
(...)
They used the sediment cores to help reconstruct what the climate and ecosystems were like in Australia at the time.
The sediment core is a type of time record of our planet - it contains chronological layers of sediment blown off from earth and into the ocean.
WHAT KINDS OF MEGAFAUNA WERE THERE?
Around 45,000 years ago, huge 'megafauna' species roamed around Australia.
But researchers have found that shortly after humans arrived in Australia, more than 85 per cent of these megafauna went extinct.
Some of these animals included:
•1,000 pound kangaroos.
•2-ton wombats.
•25-foot-long lizards.
•400-pound flightless birds.
•300-pound marsupial lion.
•Volkswagen-sized tortoises"
quinta-feira, 19 de janeiro de 2017
quarta-feira, 18 de janeiro de 2017
Primeiros meses importantes para desenvolvimento linguístico
http://www.bbc.com/news/science-environment-38653906
Citando:
"The study is the first to show that the early experience of adopted children in their birth language gives them an advantage decades later even if they think it is forgotten, she said.
''This finding indicates that useful language knowledge is laid down in [the] very early months of life, which can be retained without further input of the language and revealed via re-learning,'' she told BBC News.
In the study, adults aged about 30 who had been adopted as babies by Dutch-speaking families were asked to pronounce Korean consonants after a short training course.
Korean consonants are unlike those spoken in Dutch."
Citando:
"The study is the first to show that the early experience of adopted children in their birth language gives them an advantage decades later even if they think it is forgotten, she said.
''This finding indicates that useful language knowledge is laid down in [the] very early months of life, which can be retained without further input of the language and revealed via re-learning,'' she told BBC News.
In the study, adults aged about 30 who had been adopted as babies by Dutch-speaking families were asked to pronounce Korean consonants after a short training course.
Korean consonants are unlike those spoken in Dutch."
segunda-feira, 16 de janeiro de 2017
sábado, 14 de janeiro de 2017
sexta-feira, 13 de janeiro de 2017
Zombies podem não estar tão longe como isso (investigação em ratos)
Com tanta coisa boa para investigar olhem só o que foi agora descoberto ao nível do cérebro
https://m.phys.org/news/2017-01-keys-behavior-tucked-deep-vertebrate.html
Citando:
"The researchers used optogenetics, a means of engineering specific neurons to fire upon light stimulation, to isolate and selectively activate each set of neurons. When the laser is off, the animals behave normally. But turn the laser on, and the mice take on qualities of "walkers" from The Walking Dead, pursuing and biting almost anything in their path, including bottle caps and wood sticks. "We'd turn the laser on and they'd jump on an object, hold it with their paws and intensively bite it as if they were trying to capture and kill it," says lead investigator Ivan de Araujo (...)"
https://m.phys.org/news/2017-01-keys-behavior-tucked-deep-vertebrate.html
Citando:
"The researchers used optogenetics, a means of engineering specific neurons to fire upon light stimulation, to isolate and selectively activate each set of neurons. When the laser is off, the animals behave normally. But turn the laser on, and the mice take on qualities of "walkers" from The Walking Dead, pursuing and biting almost anything in their path, including bottle caps and wood sticks. "We'd turn the laser on and they'd jump on an object, hold it with their paws and intensively bite it as if they were trying to capture and kill it," says lead investigator Ivan de Araujo (...)"
segunda-feira, 9 de janeiro de 2017
Lua pode ter sido formada por vários impactos (simulação)
"Moon may have formed from flurry of impacts on the ancient Earth.
New computer simulations counter widely-held belief that moon was formed from a single massive collision."
Detalhes:
https://www.theguardian.com/science/2017/jan/09/moon-may-have-formed-from-flurry-of-impacts-on-earth-100m-years-ago
Asteróide similar ao de Chelyabinsk (2013) rasa a terra
http://www.dailymail.co.uk/sciencetech/article-4103170/Phew-Giant-asteroid-passed-just-120-000-miles-Earth-night-saw-coming.html
Citando:
"An asteroid as big as a 10-story building has passed by Earth at a distance half that of the Moon, researchers have revealed.
The asteroid, dubbed 2017 AG13, was only spotted only Saturday by the University of Arizona's Catalina Sky Survey.
It is between 50 and 111 feet (15 to 34 meters) long, and when it passed by Earth, 2017 AG3 was moving at 9.9 miles per second (16 kilometers per second). "
Citando:
"An asteroid as big as a 10-story building has passed by Earth at a distance half that of the Moon, researchers have revealed.
The asteroid, dubbed 2017 AG13, was only spotted only Saturday by the University of Arizona's Catalina Sky Survey.
It is between 50 and 111 feet (15 to 34 meters) long, and when it passed by Earth, 2017 AG3 was moving at 9.9 miles per second (16 kilometers per second). "
Larsen C quase quase...
Já houve o Larsen A, o B e agora é o C:
http://www.wired.co.uk/article/a-5000-sq-km-glacier-is-about-to-break-off-antarctica
http://www.wired.co.uk/article/a-5000-sq-km-glacier-is-about-to-break-off-antarctica
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