With each step, Luis Caraballo moved closer to his goal.
This is from today’s Orlando Sentinel. AIDS Walk is one of Hope and Help of Central Florida (metro Orlando’s largest HIV/AIDS service agency)’s largest annual fundraising events, raising approximately $150,000 for case management and prevention programs for those living with and affected by the disease. I’m proud to be a part of an organization that brings this community together and does great work helping those in need in Central Florida!
Removing all the dangerous bacteria from drinking water would have enormous health benefits for people around the world.
The technologies exist for doing that, but there’s a problem: cost.
Now MIT’s Rohit Karnik thinks he’s on to a much less expensive way to clean up water: Use the xylem of a plant.
Now if you remember your high school biology, you’ll know that xylem is the stuff in plants that transports water in the form of sap from the roots to the leaves.
"And the way the water is moved is by evaporation from the leaves," says Karnik.
It’s somewhat like what happens when you put a straw into a glass of liquid. Evaporation from the leaves has the same effect as sucking on the straw.
Pulling water up to the leaves this way creates a problem for the plant, but also an opportunity for an inventor.
The plant’s problem is something called cavitation, or the growth of air bubbles, which makes it harder for water to reach the leaves. But Karnik says xylem has a way of getting rid of these bubbles.
"The xylem has membranes with pores and other mechanisms by which bubbles are prevented from easily spreading and flowing in the xylem tissue," he says.
And it turns out these same pores that are so good at filtering out air bubbles are just the right size for filtering out nasty bacteria.
To prove it worked, he created a simple setup in his lab. He peeled the bark off a pine branch and took the sapwood underneath containing the xylem into a tube. He then sent a stream of water containing tiny particles through the tube and showed that the wood filter removed them.
"We also flowed in bacteria and showed we could filter out bacteria using the xylem," he says. Karnik estimates the xylem removed 99.9 percent of the bacteria.
The results were published Wednesday in the journal PLOS ONE.
Image: Making a xylem water filter is easy: Just peel back the bark and stick inside a tube. (PLOS ONE)
Interesting, simple way to filter bacteria from water. :-)
This article is a great reminder why I quit smoking over two years ago. If I can do it, anyone can!
Orlando Health Inc. has signed an agreement with Florida Blue to form a health…
I know this isn’t in the Sunshine State, but I’m in Charlotte visiting the family and saw this in the paper. In recognition of World AIDS Day I’m reposting this article discussing a publication that will help case managers, social workers and peer mentors who work with those living with HIV/AIDS nationwide.
Interesting post on Trauma Centers in Florida
Arkansas managed to insure hundreds of thousands of people by expanding Medicaid. Can it be a model for the country?
I see that Florida’s Governor Scott is open to the idea of using federal Medicaid funds to provide private insurance to our poorest citizens, a strategy that’s working in Arkansas. Hey, that’s something. And something is better than nothing, I suppose. Enjoy! —Jon
Writing in today’s New York Times opinion section, the psychotherapist and Atlantic contributor Lori Gottlieb offers a shocking first-person account of why the Affordable Care Act is in so much political trouble: It’s because many Americans are too stupid and too selfish to understand how health insurance works, on the most fundamental level.
I had to post this. Well said and I agree. :-) —Jon
The Affordable Care Act will broaden health care coverage for many of the 1.1 million Americans infected with HIV, especially those who live in the 25 states and the District of Columbia that have opted to
Interesting points to consider:
1)This article gives a great summary of current HIV programs and how they’re administered by the Federal Government and the states. The author also speculates what may change in current programs with the Affordable Care Act.
2)Twenty-five states opted to expand Medicaid (Florida was not one of them). Their expanded Medicaid will cover 60% of mostly uninsured people living with the disease who are currently receiving help from Federal and state HIV programs (ADAP and Ryan White). Medicaid will cover ALL of their health care needs, not just HIV.
3) About 30 per cent of HIV patients are uninsured, compared to 15 per cent of general population.
4) About half of all Americans with HIV live in the South, where GOP governors and lawmakers almost uniformly opposed Medicaid expansion.
5) A 2011 clinical trial showed that treatment of HIV with an antiretroviral “cocktail” reduced HIV transmission risk by a whopping 96 per cent.
6) The Obama administration and state officials agreed to wait and see how much the ACA benefits people with HIV before making any major changes to Ryan White.
7) 2012 federal funding to combat AIDS: $28 Billion (from Medicare, Medicaid, Social Security income for the disabled, research, and the Ryan White Program).