Wednesday, 26 August 2015

Imports from China are blocking US ozone improvements

For a simple molecule, ozone (O3) wears many hats. Up in the stratosphere, the ozone layer provides planetary sunscreen, absorbing UV radiation before it can reach the Earth. Between the surface and the stratosphere, ozone’s significance comes from absorbing infrared radiation from the Earth—it’s a greenhouse gas. And down at ground level, ozone's reactivity makes it a harmful enough lung irritant that it’s a part of the daily weather report in some cities.

Ozone is produced in the atmosphere naturally, but it’s also created as a result of air pollution. In particular, nitrogen oxides react with sunlight to let rogue oxygen atoms loose, which can get together with friendly O2 molecules in the lower atmosphere, forming O3. By cutting the emissions of those “ozone precursors,” we can dial back the amount of ozone down here where we breathe. In the western US, emissions of nitrogen oxides were reduced by 21 percent between 2005 and 2010, yet ozone stayed about constant. Part of the answer to that conundrum lies across the Pacific, according to a new study led by Wageningen University’s Willem Verstraeten.

The suggestion that ozone from China is ending up in the US isn’t new, but the researchers turned to data from NASA’s Aura satellite (launched in 2004) to improve past estimates. The satellite data confirmed that nitrogen oxides had declined across the American West, while average ozone hadn’t changed much (some areas saw a slight decrease and some a slight increase). In China, on the other hand, emissions of nitrogen oxides rose about 21 percent between 2005 and 2010, and ozone increased by around seven percent.

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Miami Swim Week: Sinesia Karol 2016


 Brazilian elegance. Designer Sinesia Karol 's Resort 2016 collection was a combination of South American chic mixed with her Massachusetts sensibility. As a big fan of the arts, she works with artists to create the beautiful prints of her looks.

This runway show was set in the Setai Hotel's inner courtyard on a floating runway. The setting was dramatic, the models glided down the runway (though often at risk of falling into the water itself). Many of the looks could double as evening wear. The luxurious fabrics were intended to be so light that the wearer doesn't even feel them on her skin.


 
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Fashion Illustrations with Embroidered Accents and Accessories by Izziyana Suhaimi

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Singapore-based artist Izziyana Suhaimi introduces embroidered accents to her carefully rendered pencil and watercolor illustrations. Patterns of flowers unfold much like a tapestry across the paper canvas creating pieces she refers to as “evidence of the hand and of time.” For her series The Looms in Our Bones Suhaimi focuses mostly on fashion acessories where scarves, hats, and other clothing is depicted in thread, while she also uses the same techniques for more abstract shapes and designs. From her artist statement:

Embroidery for me is a quiet and still act, where each stitch represents a moment passed. The building of stitches then becomes a representation of time passing and the final work is like a physical manifestation of time – a time object. Each stitch is also a recording of the maker’s thoughts and emotions. I enjoy the duality of embroidery, in its movements of stabbing, cutting, covering, building, repairing, taking apart. Every stitch made seems to unfold a story and withhold it at the same time.

You can see much more of Suhaimi’s work here. (via Fubiz)

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ALICE precisely compares light nuclei and antinuclei

The ALICE experiment at the Large Hadron Collider (LHC) at CERN has made a precise measurement of the difference

The post ALICE precisely compares light nuclei and antinuclei has been published on Technology Org.

 
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Can America cope with a resurgence of tropical disease?

One rainy Friday morning in March 2015, Dr. Laila Woc-Colburn saw two patients with neurocysticercosis (a parasitic infection of the brain) and one with Chagas disease, which is transmitted by insects nicknamed ‘kissing bugs.’ Having attended medical school in her native Guatemala, she was used to treating these kinds of diseases. But she was not in Guatemala anymore—this was Houston, Texas.

For half a day each week, one wing of the Smith Clinic’s third floor in Houston is transformed into a tropical medicine clinic, treating all manner of infectious diseases for anyone who walks through the door. Since it opened in 2011, Woc-Colburn and her colleagues have treated everything from dengue and chikungunya to river blindness and cutaneous leishmaniasis. Their patients are not globetrotting travelers, bringing exotic diseases back home. The Smith Clinic is a safety net provider, the last resort for healthcare for people on low incomes and without insurance. Many of their patients haven’t left the Houston area for years.

This suggests that what Woc-Colburn sees in the clinic may be just the leading edge of a gathering crisis. Diseases once associated with ‘elsewhere’ are increasingly being found in the southern states of the USA. Infectious disease physician Peter Hotez was so concerned that he founded a school of tropical medicine at the Baylor College of Medicine in Houston, well within the territory that Hotez argues is one of the world’s ten hotspots for so-called neglected tropical diseases.

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Polarization of top quarks

Subatomic particles are like nuts and bolts. The old rule “righty-tighty” reminds us that a rotation like this

The post Polarization of top quarks has been published on Technology Org.

 
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Gypsy Sport Spring 2016


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What a cheeky fashion show from streetwear brand Gypsy Sport. This was one of the most anticipated presentations of NY Fashion Week Men's. Designer Rio Uribe has won design awards and consults with other global brands for his unique perspective on men's style.

His particular expertise is in his headpieces. There were tongue-in-cheek twists on fisherman's hats with net, visors, tribal gear interpreted in candy colors, the list goes on. The avant-garde accessories also continued downward to fringe and net vests.

There were several distinct themes like the baseball pinstripe, quirky pink and pastel and then earthy safari themes. This collection was described as "gender fluid". While one hears the term "androgynous" quite often, gender fluidity seems to be a relatively new trend for people to self-identity.

In the case of Gypsy Sport, this was interpreted by adding details that are traditionally associated with women's' clothing in their men's collection. Think shirring and a ruffle on a top. Loose clothing isn't necessarily hiding something.

The models were clearly directed to enjoy themselves and create a character that suits the collection and mood.. Gypsy Sport is all about showcasing the beauty of diversity and taking them out of their comfort zone.

 
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NIST Teams with Industry and Academia to Tackle Next-Generation Wireless Channel Challenges

The National Institute of Standards and Technology (NIST) has formed an international alliance with about a dozen telecommunications

The post NIST Teams with Industry and Academia to Tackle Next-Generation Wireless Channel Challenges has been published on Technology Org.

 
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