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Friday, April 13, 2012
Byword vs. iA Writer vs. Elements: iPad text editor app shootout!
Taking and sharing notes is a vital part of what many users will want to do on their iPad. We've already taken a look at the best handwriting app for iPad, but what about the best typing and text editing notes app? Let's find out!
Rashad Evans? mother gives sage advice about his UFC 145 bout with Jon Jones
Before Rashad Evans fights, his mother always gives him advice. He shared her latest wisdom with UFC cameras.
Shirley Ann Evans told Cagewriter in 2010 her son laughed off much of what she told him about his bout with Lyoto Machida, so he listened when she spoke up about Quinton Jackson.
"The last fight with Machida, the one he lost? I had warned him. I said, 'Rashad, Machida feels that if he has your mind he can win the fight.' Rashad thought that was so funny. I said he feels like he can conquer your spirit, and Rashad thought that was funny. I said it's a mental fight, and he thought I was so funny, and then he lost. And I look up, and he's telling someone on national TV, my mother warned me about the fight. I told him, Rashad, [Jackson's] coming to knock you the hell out. He's not playing with you. Look for every opportunity you can to give that to him. He wasn't laughing this time!"
When Evans listens to his mother, he wins. Do you think he'll be following her advice next Saturday?
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Tuesday, April 10, 2012
NASA spacecraft spot something new on the sun
ScienceDaily (Apr. 9, 2012) ? One day in the fall of 2011, Neil Sheeley, a solar scientist at the Naval Research Laboratory in Washington, D.C., did what he always does -- look through the daily images of the sun from NASA's Solar Dynamics Observatory (SDO).
But on this day he saw something he'd never noticed before: a pattern of cells with bright centers and dark boundaries occurring in the sun's atmosphere, the corona. These cells looked somewhat like a cell pattern that occurs on the sun's surface -- similar to the bubbles that rise to the top of boiling water -- but it was a surprise to find this pattern higher up in the corona, which is normally dominated by bright loops and dark coronal holes.
Sheeley discussed the images with his Naval Research Laboratory colleague Harry Warren, and together they set out to learn more about the cells. Their search included observations from a fleet of NASA spacecraft called the Heliophysics System Observatory that provided separate viewpoints from different places around the sun. They describe the properties of these previously unreported solar features, dubbed "coronal cells," in a paper published online in The Astrophysical Journal on March 20, 2012 that will appear in print on April 10.
The coronal cells occur in areas between coronal holes -- colder and less dense areas of the corona seen as dark regions in images -- and "filament channels" which mark the boundaries between sections of upward-pointing magnetic fields and downward-pointing ones. Understanding how these cells evolve can provide clues as to the changing magnetic fields at the boundaries of coronal holes and how they affect the steady emission of solar material known as the solar wind streaming from these holes.
"We think the coronal cells look like flames shooting up, like candles on a birthday cake," says Sheeley. "When you see them from the side, they look like flames. When you look at them straight down they look like cells. And we had a great way of checking this out, because we could look at them from the top and from the side at the same time using observations from SDO, STEREO-A, and STEREO-B."
When the cells were discovered in the fall of 2011, the SDO and the two STEREO (short for Solar Terrestrial Relations Observatory) spacecraft each had widely different views of the sun. Thus, as the 27-day solar rotation carried the coronal cells across the face of the sun, they appeared first in STEREO-B data, then in SDO, and finally in STEREO-A, before starting over again in STEREO-B. In addition, when one observatory looked down directly on the cells, another observatory could see them from the side.
The researchers used time-lapse sequences obtained from the three satellites to track these cells around the sun. When an observatory looked down on one of these areas, it showed the cell pattern that Sheeley first noticed. But when the same region was viewed obliquely, it showed plumes leaning off to one side. Taken together, these two-dimensional images reveal the three-dimensional nature of the cells as columns of solar material extending upward through the sun's atmosphere, like giant pillars of gas.
To round out the picture even further, the team turned to other instruments and spacecraft. The original SDO images were from its Atmospheric Imaging Assembly, which takes conventional images of the sun. Another instrument on SDO, the Helioseismic and Magnetic Imager (HMI), provides magnetic maps of the sun. The scientists superimposed conventional images of the cells with HMI magnetic field images to determine the placement of the coronal cells relative to the complex magnetic fields of the sun's surface.
First of all, the magnetic field bundles lay centered inside the cells. This represents a clear distinction between the coronal cells and another well-known phenomenon known as supergranules. Supergranules also appear as a large cell-like pattern on the sun's surface, and their delineated edges are created as the sideways motion of solar material sweeps weaker magnetic fields toward their boundaries. Supergranules, therefore, appear to have enhanced magnetic fields at their edges, while the coronal cells show them at their centers.
Second, the scientists learned more about how the coronal cells were related to other structures on the sun, in their location between a coronal hole and a nearby filament channel. The cells consistently occurred in areas dominated by magnetic fields that point in a single direction, either up or down. In addition, the fields of the nearby coronal hole are what's known as "open," extending far into space without returning to the sun. On the other hand, the field lines in the cells were "closed," looping up over the filament channel and connecting back down to the sun.
The side-by-side nature of these open and closed magnetic fields -- open in the coronal holes, and closed in the coronal cells -- led to another scientific insight. In some of the movies, a large loop of solar material called a "filament" erupted from the adjacent filament channel. The coronal cells, with their closed field lines, disappeared and were replaced with a dark coronal hole and its associated open field lines.
"Sometimes the cells were gone forever, and sometimes they would reappear exactly as they were," says Sheeley. "So this means we need to figure out what's blowing out the candles on the birthday cake and re-lighting them. It's possible that this coronal cell structure is the same structure that exists inside the coronal holes -- but they're visible to us when the magnetic fields are closed, and not visible when the magnetic fields are open."
It has long been known that isolated plumes occur intermittently inside coronal holes when very small active regions erupt there. Presumably, these eruptions are providing glimpses of discrete coronal structures similar to the more permanently visible candles adjacent to the holes. When a portion of a hole closes, the candle-like structure is suddenly lit up by the appearance of cells.
In addition to SDO and STEREO, the team went back to historical data on ESA's and NASA's Solar and Heliospheric Observatory (SOHO), which has provided observations since the previous sunspot minimum in 1996. They did not find coronal cells in 1996 or in the years around the recent sunspot minimum in 2008-2009, but they did find numerous examples of cells in the years around the intervening sunspot maximum in 2000. The recent increase in sunspot activity together with the improved observations from STEREO and SDO may explain why the cells were discovered in 2011.
The team also constructed Doppler images -- images that show how quickly and where solar material in the sun's atmosphere moves toward the viewer -- of the coronal cells using the Extreme-Ultraviolet Imaging Spectrometer (EIS) on the Japanese Hinode spacecraft. These images show that the centers of the cells move upward faster than their boundaries, further rounding out the physical image of these giant candles with a section rising from the middle.
"One of the wonderful things about SDO is the way the observations can be combined with other instruments," says Dean Pesnell, SDO project scientist at NASA's Goddard Space Flight Center in Greenbelt, Md. " Combining data from SDO, STEREO, SOHO, and Hinode lets us paint a picture of the whole sun in ways that one instrument can't."
The discovery of coronal cells has already increased our knowledge of the magnetic structure of the sun's corona. In the future, studies of the evolution of coronal cells may improve scientists' understanding of the magnetic changes at coronal-hole boundaries and their effects on the solar wind and Earth's space weather.
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The above story is reprinted from materials provided by NASA/Goddard Space Flight Center.
Note: Materials may be edited for content and length. For further information, please contact the source cited above.
Journal Reference:
- N. R. Sheeley, H. P. Warren. Coronal Cells. The Astrophysical Journal, 2012; 749 (1): 40 DOI: 10.1088/0004-637X/749/1/40
Note: If no author is given, the source is cited instead.
Disclaimer: Views expressed in this article do not necessarily reflect those of ScienceDaily or its staff.
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Blast in south central Somalia kills at least 12
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Why Fitted Bedroom Furniture | Home Improvement
Bedrooms Middlesbrough?-?Unique interior bedroom design gives you everything that is individual and maximises the use of any space, awkward corner or otherwise inaccessible space. The many benefits of fitted furniture over free-standing vary from the people who simply want to plan their own individual design, look and finish, different to that of their friends and neighbours, to those restricted on space who want to make the most of the available room they have.?
The full length floor to ceiling cupboards take advantage of all the available space, avoid awkward cleaning, and leave no untidy gaps where the free-standing furniture does not quite fit. Perfect for attics, extensions or rooms with non-standard shape, it really does make use of the available space. Sloping ceilings can be hidden away, indented walls, or why not match up the cupboard over the stairs. Also for those with a regular shaped room, the feeling of luxury of an individually designed bedroom promotes ?the beneifts of time spent relaxing. Complimented with lighting which can be mounted into the furniture or the ceiling and walls and your choice of decor to coordinate with your theme and colour, it is the ultimate in comfort and style.?
Traditional or contemporary, your bespoke furniture can be selected in a wide range of materials, finishes and colours. These are best viewed using samples to really appreciate the quality and standard and how it differs from self-assembly furniture. It is well worth considering the value that the furniture will add to your property and the potential of making the property more desirable to prospective buyers if you should decide to sell later on.?
The versatility and range of alternatives inside the furniture are countless. Figuring out where to put drawers and shelving can largely depend on individual choice and what best suits your storage needs. Tie, scarf and shoe racks can all be added as required, along with a range of other fixtures and fittings. For the children more hanging rails can be used to maximise space inside cupboards and wardrobes. Over bed storage is often a practical use of space to keep less frequently used items such as luggage, quilts or other bulky things. Bed heads and bed frames can often be matched to ?the rest of the furniture, also a practical storage space if required. Accessories can be supplied to coordinate with the furniture too like free standing mirrors, wall shelves, chairs and stools. All designed to give a truly co-ordinated and individual look.
Start your plan with thoughts and ideas in mind. The practicalities are an important consideration, such as space for opening doors and drawers and walking round the room. Having an thought of colour and style is also important. Keeping that in mind, a bedroom planner can visit and measure the room, and help with suggestions on how you can maximise the use of space and show the versatility that fitted furniture has to offer. The superior quality and craftsmanship provided by trained fitters is unparalleled. Beginning to end the personalised service, making certain your stylish bespoke bedroom suits all your requirements, is designed to suit everyone.
By M&K Bedrooms
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Obesity, diabetes during pregnancy linked to autism | Health ...
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Women who are obese or have diabetes are significantly more likely to have a child with autism or other developmental disabilities, a major study published Monday in the journal Pediatrics has found.
The study, by researchers affiliated with the University of California-Davis, included 1,004 mother/child pairs, with the children aged between 24 and 60 months old. There were 517 children with autism, 172 with other developmental disorders, and 315 who were developing normally.
Among moms who were diabetic during their pregnancy, the percentage of children with autism was 9.3% and with a different development delay was 11.6%, compared to 6.4% in healthy moms.
More than 20% of the mothers of children with autism or other developmental disabilities were obese, compared with 14% of the mothers of normally developing children.
The study also found that children born to diabetic mothers generally showed poorer cognitive abilities: the autistic children were "more disabled," and the children born without autism were slower in language comprehension and socialization.
Noting that obesity is a "significant risk factor for diabetes," the researchers speculate that poorly regulated glucose levels in obese and/or diabetic women lead to prolonged exposure of the fetus to high insulin.
They add that the fetus's oxygen supply may be depleted because elevated insulin production uses more oxygen. Furthermore, diabetes may result in fetal iron deficiency. Both of these conditions can adversely affect the fetal brain development, the authors said.
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