23 maio 2015



Via: http://ift.tt/1eWNk1f

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NGC 7822 in Cepheus

Hot, young stars and cosmic pillars of gas and dust seem to crowd into NGC 7822. At the edge of a giant molecular cloud toward the northern constellation Cepheus, the glowing star forming region lies about 3,000 light-years away. Within the nebula, bright edges and dark shapes are highlighted in this colorful skyscape. The image includes data from narrowband filters, mapping emission from atomic oxygen, hydrogen, and sulfur into blue, green, and red hues. The atomic emission is powered by energetic radiation from the hot stars, whose powerful winds and radiation also sculpt and erode the denser pillar shapes. Stars could still be forming inside the pillars by gravitational collapse, but as the pillars are eroded away, any forming stars will ultimately be cutoff from their reservoir of star stuff. This field spans around 40 light-years at the estimated distance of NGC 7822.

from NASA http://ift.tt/1LvbrpX
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Pai, minha alma te louva e
te glorifica.
Pai celestial, estou aqui
diante da tua divina presença peço que tenha misericórdia de mim, no doce nome
de Jesus Cristo.
Pai, começa a tocar-me agora
desde as plantas do pé até minha cabeça.
Jesus Cristo começa a tocar
o meu corpo doente e principalmente minha mente.
Toca-me Jesus com grande
poder neste instante.
Pai bondoso e
misericordioso, toca com o teu poder esta enfermidade em meu corpo e na minha
Toca agora Jesus Cristo por que
há poder em teu Sangue no teu Santo
O Espírito Santo está
começando a mover-se em minha vida;
Ele está curando e limpando o
meu corpo e minha mente neste instante.
Senhor, sinto neste momento
poder de Deus ! O poder de Deus ! Aleluia !
É por tuas chagas que estou
sendo curado, em Nome de Jesus de Nazaré.
Escute aqui, Satanás ! Tire
suas garras imundas da minha vida, da minha família, do meu bairro, do meu
trabalho, da minha cidade, do meu País, em Nome de Jesus de Nazaré!
Demônio da incredulidade, da
impureza, da mentira, da violência, do homosexualismo, da prostituição, do engano,
da inveja, do ciúme, solta a minha mente agora no Nome de Jesus de Nazaré !
Em Nome de Jesus de Nazaré,
eu ordeno ao homem forte do exército de Satanás, ao general de guerra, que ele
seja amarrado, as hostes infernais sejam derrotadas, que as armas deste
exército sejam jogadas ao chão, que os seus soldados se choquem uns contra os
outros, desordenados e que todos vão para as trevas exteriores sem direito a
retorno, porque Jesus abriu o caminho.
A minha vida a partir de
agora e minha mente estão livres em nome do Senhor Jesus Cristo de Nazaré.
O homem forte de Satanás foi
derrotado, o seu exército foi disperso, a minha mente está liberta da possessão
maligna, sou mais que vencedor, lavado e remido no sangue do Cordeiro, em Nome
de Jesus Cristo de Nazaré.
Pai nosso que estás no céu,
eu venho a ti, ó Deus, nesta hora, para suplicar-te, que a unção e o poder do
teu Espírito Santo venha sobre a minha vida e mente neste momento.
Pai, peço-te esta unção e
este poder para fazer o bem e para desfazer todas as obras do diabo; para que
os enfermos sejam curados, os oprimidos sejam libertos, as correntes de Satanás
sejam quebradas e as portas dos cárceres sejam abertas.
Pai, eu recebo agora, neste
momento, a unção e o poder que vem de Ti !
Senhor, coloco-me em tuas
mãos, usa a minha vida, faz de mim um ganhador de almas.
Eu me comprometo a realizar
a tua perfeita vontade em todas as coisas. No nome de Jesus Cristo de Nazaré.

via @notiun

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The octopus can see with its skin Octopuses are well known...

The octopus can see with its skin

Octopuses are well known for changing the colour, patterning, and texture of their skin to blend into their surroundings and send signals to each other, an ability that makes them both the envy of, and inspiration for, army engineers trying to develop cloaking devices. As if that wasn’t already impressive enough, research published today in the Journal of Experimental Biology shows that octopus skin contains the pigment proteins found in eyes, making it responsive to light.

These clever cephalopods can change colour thanks to specialised cells called chromatophores, which are packed in their thousands just beneath the skin surface. Each of these cells contains an elastic sac of pigmented granules surrounded by a ring of muscle, which relax or contract when commanded by nerves extending directly from the brain, making the colour inside more or less visible.

Octopuses are thought to rely mainly on vision to bring about these colour changes. Despite apparently being colour blind, they use their eyes to detect the colour of their surroundings, then relax or contract their chromatophores appropriately, which assume one of three basic pattern templates to camouflage them, all within a fraction of a second. Experiments performed in the 1960s showed that chromatophores respond to light, suggesting that they can be controlled without input from the brain, but nobody had followed this up until now.

Evolutionary biologists Desmond Ramirez and Todd Oakley of the University of California, Santa Barbara therefore removed patches of skin from 11 hatchling and adult bimac octopuses (Octopus bimaculoides), mounted them onto Petri dishes with insect pins, and used light emitting diodes to shine light of different wavelengths onto the skin preparations. They noticed that the chromatophores expanded quickly, and remained expanded, pulsating rhythmically, when exposed to continuous bright white light. By contrast, red light caused slow, rhythmic muscle contractions, but not chromatophore expansion.

In these, experiments, the chromatophores were most responsive to wavelengths of 480 nanometers (nm, or billionths of a meter), which corresponds to blue light. This also happens to be the wavelength that some opsins, the pigmented light-sensitive proteins found in eyes, absorb best. Ramirez and Oakley therefore predicted that opsins are present in octopus skin, where they might act as light sensors.

To test this, they stained some skin preparations with fluorescently-labelled antibodies that recognise and bind to opsins and other proteins that interact with them. Sure enough, they found that sensory neurons in the skin synthesize one version of the opsin protein, along with G protein alpha and phospholipase C, two enzymes that relay signals from opsin molecules that have been activated by light to the interior of the cell, and which are needed to initiate the cellular response.

Octopuses aren’t unique in this respect, as various other species are now known to have skin that contains opsins and is sensitive to light. But this study provides the first clear evidence that octopus skin is also sensitive to light, and also hints at a plausible mechanism by which chromatophores detect and respond to it.

Other research shows that the marine ragworm, a “living fossil” with primitive eyes consisting of patches of opsin-containing cells at the front of its brain, also expresses the same opsin protein in neurons located on the underside of its nerve cord, and in the hair-like appendages it uses to crawl and swim. These primitive creatures continue to avoid light after being decapitated, suggesting that the opsins found outside their brain are indeed involved in sensing light.

Ramirez and Oakley believe that octopus skin acts in a similar way. In eyes, opsins are arranged in an organized manner inside photoreceptor cells, so that they can recreate a faithful copy the visual field on the retina. In chromatophores, they are arranged loosely, and so light-sensitive skin would probably detect changes in brightness, rather than forming a detailed image.

The researchers also noted that the chromatophores in their skin preparations expanded in response to light touch as well as to light, and their antibody staining experiments revealed that they are expressed in the neurons that are sensitive to mechanical pressure. This raises the intriguing possibility that opsins, which have always been associated with vision, might also contribute to other senses. This is supported by recent studies showing that opsin is present in the fruit fly antenna, where it detects mechanical vibrations, and is critical for hearing.

It’s still not entirely clear whether octopus chromatophores act as light sensors, mechanical receptors, or both, but Ramirez and Oakley are planning to find out, in a series of new experiments designed to determine what kind of behaviours they are involved in. The fact that opsins are present in mechanically sensitive cells suggests they have a common and ancient role in these processes.

Ramirez and Oakley also plan to compare opsins from the skin and eyes of different species, in order to see how they are related, and to determine whether these non-visual light responses co-opted existing opsins, or evolved independently.

Reference - Ramirez, M. D. & Oakley, T. H. (2015). Eye-independent, light-activated chromatophore expansion (LACE) and expression of phototransduction genes in the skin of Octopus bimaculoides. J. Exp. Biol. doi: 10.1242/jeb.110908


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Edward Saidi Tingatinga (1932–1972) was a Tanzanian painter, who...

Edward Saidi Tingatinga (1932–1972) was a Tanzanian painter, who invented the eponymous painting style. Tingatinga was born in 1932 in a village called Namochelia, near the border with Mozambique. The village no longer exists – it is remembered only as his birthplace. (In a related note, I may have a new goal in life…)  Because his mother was Christian and his father was Muslim, he was two names, on from each tradition. Read more at historical-nonfiction.com

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dione & titan, photographed by cassini, 10th may 2010.colour...

dione & titan, photographed by cassini, 10th may 2010.

colour composite; each frame produced from 3 photographs (taken through red, green, and blue filters in sequence). because the moons are moving relative to each other, for each frame a composite must be made for dione (bottom left) and for titan (bottom right), then combined.

image credit: nasa/jpl/ssi. animation & composites: ageofdestruction.

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May 23rd 1701: Captain Kidd executedOn this day in 1701, the...

Willliam "Captain" Kidd (c.1654 - 1701)

William Kidd's body hanging in a cage on the River Thames - from 'The Pirates Own Book' by Charles Ellms (1837) (source: http://ift.tt/1t1X2GY)

May 23rd 1701: Captain Kidd executed

On this day in 1701, the Scottish pirate William Kidd was executed in England. Kidd, born in Dundee around 1654, enjoyed a successful career as a seaman before his turn to piracy. In May 1696, Kidd set sail charged with the job of hunting pirates and attacking enemy French ships as a privateer. However, while on this voyage around the Indian Ocean, Kidd and his crew began plundering treasure ships. During his time, Kidd killed a mutinous gunner on his ship, contributing to his fearsome piratical reputation. Their main prize was the Quedagh Merchant which carried a wealth of gold, silk and spices - the haul from this came to around £15,000, a huge amount of money for this period. As news broke in England of Kidd’s activities, his wealthy and powerful patrons at home scrambled to condemn him. He was eventually arrested in New York, where he had gone with hopes of support from his powerful contacts there, insisting he was innocent and had acted only as a privateer. Whilst he gave up some of his buried treasure on Gardiners Island, he claimed he had more buried somewhere else; would-be treasure hunters have been searching for his haul ever since. Kidd was put on trial for piracy in England, in what became a public spectacle due to his prominent connections, where he was found guilty and sentenced to death. On May 23rd, Kidd was hanged on the River Thames in London and his body encased in an iron cage and left to rot as a warning to other pirates.

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If you like psychology, you’ll love All-About-Psychology.Com 

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People who say psychology isn't a science.

People who say psychology isn't a science.:

People who know psychology is a discipline bursting with science, please visit http://ift.tt/1eWNk1f

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A woman wearing an okosozukin (a combination of hood and...

A woman wearing an okosozukin (a combination of hood and veil), that signified nobility. Okosozukin were used to protect against the cold in winter. From Meiji Japan.

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GO HERE –> http://bit.ly/10PsychMemes to see 10 more...

GO HERE –> http://bit.ly/10PsychMemes to see 10 more brilliant psychology memes!

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My Last Duchess Has Been Fixed

Sorry about the block text, guys, the poem is now easy-to-read and the commentary is in two paragraphs. Thanks to my wonderful followers who let me know about the problem (you guys know who you are). Check out the reformatted post here!

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Cambodia's lucky iron fish - BBC News

Cambodia's lucky iron fish - BBC News:


Lucky Iron Fish is a great example of an innovation resulting from designers listening to what a population wanted and needed. Check them out: http://ift.tt/13fFYaZ

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The first bridge made out of iron had a span of only 100 feet....

The first bridge made out of iron had a span of only 100 feet. It crossed the Severn River in England and was built in 1777–1778. The bridge still survives today.

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Vaccines “beyond the cold chain”

Vaccines “beyond the cold chain”:


John Lloyd, Senior Technical Advisor at PATH.

In the final struggle to reach children in areas of difficult access, immunization managers will surely need to use vaccines to the limits of their temperature stability with the least logistic constraints.

A great tool that’s helping vaccines…

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