In new research published in the journal Nature Climate Change, an international scientific team has identified a powerful internal mechanism that could enable some corals and their symbiotic algae to counter the adverse impact of a more acidic ocean.
As humans release ever-larger amounts of carbon dioxide into the atmosphere, besides warming the planet, the gas is also turning the world's oceans more acidic -- at rates thought to far exceed those seen during past major extinctions of life. This has prompted strong scientific interest in finding out which species are most vulnerable, and which can handle the changed conditions.
martes, 3 de abril de 2012
lights
Specialists of the Center for Research and Advanced Studies (CINVESTAV) developed a lighting design very low power consumption and high efficiency.
The researcher Cyrus Falcony Guajardo explained that this technology may have an energy saving of up to 90% over conventional incandescent bulbs with the same lighting capacity.
An expert group of the Physics Department of CINVESTAV raised Zacatenco Unit strives to find materials that convert light to allow the LED'so light emitting diodes (currently emit a bluish light) in white light emitting through a better balance visible light color.
Falcony Guajardo said LEDs emit light with high efficiency, but in very narrow color spectrum (infrared, red, blue, violet and ultraviolet).
How are you explained that emissions do not allow proper ambient lighting to the human eye, the challenge was to synthesize materials that expand the spectrum of light from such devices.
The investigator noted that this is equivalent to the white appearance match that used in fluorescent lamps called "saving or cold light", which are placed inside the glass tube used in the lamp, which in the case of LED's is incorporated in the encapsulation thereof.
He explained that this technology has an impact on high efficiency and energy savings and in reducing environmentally harmful effects (such as those arising from the use of mercury in fluorescent lamps currently on the market).
Another benefit is seen with this project, which was supported by the Institute of Science and Technology of the Federal District, is the contribution to reducing global warming.
Falcony Cyrus stated that there are two patents pending and over 10 research publications in journals.
lael
The researcher Cyrus Falcony Guajardo explained that this technology may have an energy saving of up to 90% over conventional incandescent bulbs with the same lighting capacity.
An expert group of the Physics Department of CINVESTAV raised Zacatenco Unit strives to find materials that convert light to allow the LED'so light emitting diodes (currently emit a bluish light) in white light emitting through a better balance visible light color.
Falcony Guajardo said LEDs emit light with high efficiency, but in very narrow color spectrum (infrared, red, blue, violet and ultraviolet).
How are you explained that emissions do not allow proper ambient lighting to the human eye, the challenge was to synthesize materials that expand the spectrum of light from such devices.
The investigator noted that this is equivalent to the white appearance match that used in fluorescent lamps called "saving or cold light", which are placed inside the glass tube used in the lamp, which in the case of LED's is incorporated in the encapsulation thereof.
He explained that this technology has an impact on high efficiency and energy savings and in reducing environmentally harmful effects (such as those arising from the use of mercury in fluorescent lamps currently on the market).
Another benefit is seen with this project, which was supported by the Institute of Science and Technology of the Federal District, is the contribution to reducing global warming.
Falcony Cyrus stated that there are two patents pending and over 10 research publications in journals.
lael
noticias: semana santa in Mexico
noticias: semana santa in Mexico: Semana santa is, along with the Christmas season, the most important Catholic holiday in Mexico. Throughout the country there are solemn b...
viernes, 30 de marzo de 2012
Buzz over live beetle fashion accessories
Buzz over live beetle fashion accessories.
All things Mayan have been heating up in the travel world, as predictions of astrological apocalypseslure tourists. But think twice about bringing back the "latest" ancient Mayan fashion statement to the United States: Bling that melds instant glue, a tenebrionid beetle, jewelry, and a marked insensitivity to creepy-crawlies on your bosom isn't welcome on this side of the border.
The maquech brooch, a concept attributed to the Mayas and now popular among some hardcore Mexican ladies, pins a live critter to one's lapel. The leashed beetle then crawls about, evoking images of chained slaves or Princess Leia chained by Jabba the Hutt.
The AP video on the buggers has gone viral, although crackdown on the blinged beetles has been an ongoing one and falls under U.S. Department of Agriculture laws against illegally importing plants and animals from other countries. That hasn't stopped jewelry hounds from trying to pull a fast one at the border over the years. An incident was reported in 2010 at the Mexico-Texas checkpoint, but beetle-eyed inspectors recognized a pest when they saw one. And the brooch bugs out animal activists. "Beetles may not be as cute and cuddly as puppies and kittens, but they have the same capacity to feel pain and suffer," said a PETA spokesperson at the time.
The origin of this "pet concept" was explained by an American travel writer back in 1990. "I learned that the creature is called a maquech in the Maya language," wrote Randall Peffer. "The Indians catch them and decorate them in the belief that such a bejeweled insect worn over the heart will be a totem for the soul of a lost loved one. This maquech had been named I'xtabai after a famous Maya phantom that appears as a beautiful woman to seduce men to their doom in the depths of the jungle."
For a list of other cross-border no-noes, check the Prohibited and Restricted Items listed by the U.S. Department of Homeland Security. States also have their own restrictions, so be sure to check those as well. For fashion no-noes, you're going to have to check someplace else.
The maquech brooch, a concept attributed to the Mayas and now popular among some hardcore Mexican ladies, pins a live critter to one's lapel. The leashed beetle then crawls about, evoking images of chained slaves or Princess Leia chained by Jabba the Hutt.
The AP video on the buggers has gone viral, although crackdown on the blinged beetles has been an ongoing one and falls under U.S. Department of Agriculture laws against illegally importing plants and animals from other countries. That hasn't stopped jewelry hounds from trying to pull a fast one at the border over the years. An incident was reported in 2010 at the Mexico-Texas checkpoint, but beetle-eyed inspectors recognized a pest when they saw one. And the brooch bugs out animal activists. "Beetles may not be as cute and cuddly as puppies and kittens, but they have the same capacity to feel pain and suffer," said a PETA spokesperson at the time.
The origin of this "pet concept" was explained by an American travel writer back in 1990. "I learned that the creature is called a maquech in the Maya language," wrote Randall Peffer. "The Indians catch them and decorate them in the belief that such a bejeweled insect worn over the heart will be a totem for the soul of a lost loved one. This maquech had been named I'xtabai after a famous Maya phantom that appears as a beautiful woman to seduce men to their doom in the depths of the jungle."
For a list of other cross-border no-noes, check the Prohibited and Restricted Items listed by the U.S. Department of Homeland Security. States also have their own restrictions, so be sure to check those as well. For fashion no-noes, you're going to have to check someplace else.
By.
sábado, 17 de marzo de 2012
semana santa in Mexico
Semana Santa is also a time when half of Mexico flocks to the beaches---a Mexican spring break. Be sure if you want to travel during this time of year to make hotel reservations as far in advance as possible.
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