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Monday, March 14, 2016

GM mosquitoes could block spread of Zika in Florida



Genetically modified mosquitoes could be released in Florida to block the spread of the Zika virus after the FDA confirmed they would cause "no significant threat to the environment".

The OX513A mosquito -- or Aedes aegypti -- is modified by British bioengineering company Oxitec, and has been approved following evaluation by the FDA on potential health and environmental impacts.

According to Oxitec, OX513A is intended to "suppress the population of that mosquito" at the release site in order to stop the transmission of diseases such as Zika, dengue and yellow fever.

The genetic modification does this by transmitting lethal genes to its offspring, which subsequently die before reaching adulthood. It has already been trialled in Brazil, Panama and the Cayman Islands, and Oxitec claims that these trials reduced the Aedes aegypti population by more than 90 percent.

Similar mosquitoes have been modified to halt the spread of malaria.

The FDA said in a statement that the mosquitos "do not bite humans or other animals", and are therefore "not expected to have any direct impacts on human or animal health".

"The Aedes aegypti mosquito represents a significant threat to human health," said Hadyn Parry, chief executive of Oxitec, in a statement. "In many countries it's been spreading Zika, dengue and chikungunya viruses."

"The mosquito is non-native to the US and difficult to control, with the best available methods only able to reduce the population by up to 50 percent, which is simply not enough," Parry continued. "We look forward to this proposed trial and the potential to protect people from Aedes aegypti and the diseases it spreads."

The FDA will need to make a further decision before the mosquitoes are released into the environment, and will be consulting the public for thirty days before final approval.

Source: http://www.wired.co.uk

This tech tricks your brain into hearing surround sound



Ambidio wants to give stereo sound a virtual makeover. The Los Angeles-based startup, which has secured investment from Horizons Ventures and will.i.am, has developed a proprietary encoding technology that it claims can turn stereo speakers into surround sound.

Laptops, mobile phones, tablets and even high-end hi-fi systems all work with the process. For best experience, the company says, use a laptop with speakers rather than headphones.

There’s been no shortage of stereo enhancement technologies over the years, but few have gained commercial traction. Complex recording requirements and encoding are the usual stumbling blocks.

But Ambidio looks to be different. It can be applied to any stereo source, embedded directly into movie and audio files, or used as a plug-in to process sound in real time. Adding heavyweight credibility is Skywalker Sound, which has signed up as a "strategic advisor."

Ambidio is the brainchild of Iris Wu, who as a student studying sound technology at New York University found herself increasingly frustrated at the inadequacies of laptop audio. And Michael Bay’s Transformers proved the final straw.

"There were buildings falling down, robots running around, but compared to all this visual impact, the sound from my laptop was so tinny," Wu tells WIRED. "I began to think about how I could get better sound from such a little device."

While similar to the Head Related Transfer Function trickery employed by binaural recordings, the technology is different, insists Wu. "Ambidio doesn't emulate any kind of HRTFs. We don't simulate virtual ears, virtual speakers, and we don't use HRTF shapes like EQ either. The theory behind Ambidio is a bit out-of-box - we try to let the brains pick up the sound source itself, just like we do everyday."

Ambidio claims it can make stereo sound seem three times ‘wider’ than existing virtual loudspeaker solutions. This is as much about neuroscience as it is conventional high-fidelity.

"We try to understand the whole process, how the brain interprets sound events. For example, we actually keep monitoring the environmental sound all the time, and have the ability to choose what we want to focus on, and what we don't. Knowing these really help us to fine tune Ambidio, not only make the effect more compelling, but also make it work for everyone."

"The beauty of Ambidio is that it can provide a theatrical experience to any device – from VR headsets to soundbars," says Wu. "There’s nothing like that in the market right now."

Source:http://www.wired.co.uk

Friday, March 11, 2016

Google Joins Effort to Stop Zika Virus Spread



Google last week announced it would contribute US$1 million to the UN Children's Fund to support the global fight against the mosquito-borne Zika virus.

A team of Google engineers has volunteered to work with UNICEF to analyze data in an effort to figure out the viral infection's path. It also will match employee donations with the goal of giving an extra $500,000 to UNICEF and the Pan American Health Organization.

The company took the actions following recent Zika virus outbreaks that caused a 3,000 percent increase in global search interest since November.

Last month, the World Health Organization declared a public health emergency. Coordinated Effort

The possible correlation with Zika, microcephaly and other birth defects is alarming, Google said. Four out of five people with the virus don't show any symptoms, and the primary transmitter, the Aedes mosquito, is widespread and challenging to eliminate.


UNICEF is working with Google engineers and data scientists to create an open source information platform to help UNICEF and partners on the ground target Zika response efforts, according to Chris Fabian, colead of UNICEF's innovation unit.

"This open source platform will be able to process information like mobility patterns and weather data to build risk maps. We plan to prototype this tool in the Zika response but expand it for use globally," he told TechNewsWorld.

Open Source Platform

The plan calls for Google software engineers John Li and Zora Tung, along with UNICEF research scientist Manuel Garcia Herranz and UX designer Tanya Bhandari, to work on the open source data platform. It will process data from different sources, such as weather and travel patterns, to visualize potential outbreaks.

Ultimately, the goal of the platform is to identify the risk of Zika transmission for different regions and help UNICEF, governments and nongovernmental organizations decide how and where to focus their time and resources. If successful, it can be applied to other outbreaks.

"Financial contributions and donations are always beneficial, but it is hard to say whether or not tracking the virus itself will have significant contributions," said Sarah Lisovich, content strategist at CIA Medical.

Putting Analytics to Work

The symptoms are similar to those of other common healthcare conditions, she told TechNewsWorld.

Google is a leader in terms of research tools and putting forth tools to help understand the outbreak and bring more awareness and comprehension, Lisovich added.

Analytics has been used to track mosquito-borne illnesses such as malaria, dengue fever and West Nile virus for years, according to Jamie Powers, health industry consultant at SAS Institute. In addition to understanding and learning from past events, analytics can quickly create new knowledge from billions of data points and multiple disparate data sets to provide the best input for predictive analytics.

"Text mining and social media analysis to track specific disease symptoms -- syndromic surveillance -- can also help detect the earliest stages of infectious-disease outbreaks, whether it is measles, H1N1, Ebola ... or Zika," he told TechNewsWorld. Respected Efforts

Google's contribution to the epidemiology of the Zika virus is a critical initial step for public health. It is significant not only for tracking the spread of the virus but for providing the public with information on it, said David Eling, director of business development at ProSci.

Empowering people with knowledge of where Zika is prevalent, how it is transmitted, and methods of minimizing risk is a critical job, he told TechNewsWorld.

"The more we know about the Zika virus, the more ways we will have to combat it," Eling said. "I have confidence that with this support and our growing knowledge that we will develop both a vaccine as well as a therapeutic against Zika."

Source: http://www.technewsworld.com

Wednesday, March 9, 2016

Obama Pushes Plan to Cut Medicare Drug Payments



WASHINGTON—The Obama administration is proposing a test program to see if lowering reimbursements for drugs administered by some Medicare doctors would prompt them to choose lower-cost, but equally effective, medications.

The development could lead to an overhaul of reimbursements under Medicare Part B, a program that pays about $19 billion a year to providers—and is outlined in a proposed rule issued Tuesday by the Centers for Medicare and Medicaid Services, which runs the program.

The initiative is part of a strategy by the Obama administration and Congressional lawmakers to tackle health-care spending that is driven in part by rising prescription-drug prices, an issue that has loomed in the presidential race and ranks high among public concerns in polls. The administration has sought information on pricing from pharmaceutical companies and has been probing ways to help consumers keep their drug costs in check.

But the proposal is meeting stiff opposition from the pharmaceutical industry and some providers—especially cancer centers where many high-price specialty drugs are used—because of the proposed drop in reimbursement.

“It is inappropriate for CMS to manipulate choice of treatment for cancer patients using heavy-handed reimbursement techniques,” said Dr. Allen Lichter, chief executive officer of the American Society of Clinical Oncology, a professional organization. “Physicians did not create the problem of drug pricing and its solution should not be on their backs.”

About 100 industry and consumer groups are already pressing the administration to withdraw the proposal because they say it would prevent some patients getting medications they need. They called the proposed rule “misguided and ill-considered” according to a letter sent to the Department of Health and Human Services last week in anticipation of the proposal.

“We urge you to ensure that our nation’s oldest and sickest patients continue to be able to access their most appropriate drugs and services,” according to the letter, which was signed by oncology, HIV and urology organizations.

The rule creating the test program could go into effect in two phases after a 60-day comment period, officials said. It would run for five years. Nothing in the proposal would prevent doctors from prescribing treatments they think patients need, officials said Tuesday.

“These models would test how to improve Medicare beneficiaries’ care by aligning incentives to reward value and the most successful patient outcomes,” said Dr. Patrick Conway, deputy administrator for innovation and quality and chief medical officer at CMS.

He said nothing would prevent doctors from administering any drug.

The insurance industry’s main trade group indicated support. “This pilot program is an important start towards ensuring that patients get the best value for their health-care dollars,” said Clare Krusing, a spokeswoman with America’s Health Insurance Plans.

Total drug spending in the U.S. is expected to hit $535 billion in 2018, which is almost 17% of all personal health-care spending, according to a report Tuesday by HHS.

Medicare Part B is a program that reimburses providers who administer prescription drugs in offices and hospital outpatient settings. It is a major component of Medicare, the $600 billion federal health-coverage program for roughly 50 million seniors age 65 and older and the disabled.

The Part B program has seen rising expenses due, in part, to the advent of newer and costlier prescriptions. Analysts have said the program is ripe for an overhaul because its reimbursement system provides an incentive for doctors to select more expensive drugs when cheaper and just as effective alternatives exist.

Generally, under Medicare Part B, doctors are reimbursed the average sale price of a drug plus an additional 6% premium. Critics have said this encourages the use of costlier drugs as doctors get larger reimbursements for using them.

A doctor who administers a $100 cancer drug, for example, would be reimbursed that average sales price plus $6.00. A doctor who administers a $1,000 cancer drug would be reimbursed the average sales price plus a $60 premium.

A November 2015 report by the U.S. Government Accountability Office said the current system has led to concerns that it is creating “incentives for use of higher prices drugs when lower priced alternatives are available.”

Under the proposed rule, the Obama administration would assign providers to groups based on their service areas. Doctors in certain groups would get the average sales price of the drug. They would also get a 2.5% premium instead of the current 6%. And they would get an additional fee of $16.80.

So doctors in the test ZIP codes who use a $100 drug would get the average sales price plus $19. A doctor who selects a more expensive drug at $1,000 would get about $42 plus $1,000. While the doctor who chooses the more expensive drug would still get a larger reimbursement, it would be significantly lower than the doctor would get under the current system. The goal is to reduce the incentive to provide costlier medications.

Phase two of the proposal—which would go into effect no earlier than January 2017—would alter other variables.

Some doctors under the current system and the proposed test would get a higher reimbursement rate if they select a drug that is very effective at treating a condition. They would get a lower rate if they select a drug that is less effective, officials said. Specific drugs involved would be selected based on clinical analysis with external input.

Another test in phase two would examine the impact that patients’ out-of-pocket costs have on the decision to administer drugs. Currently, about 20% of patients on Medicare Part B pay about 20% of the cost of their medications. Cost sharing would be eliminated for some in the test. The administration would examine if that has an effect on the type and cost of drugs doctors and patients chose.

Drug spending in the Medicare Part B program increased from $9.4 billion in 2005 to $18.5 billion in 2014, according to HHS.

Doctors give many drugs in an office setting, including vaccinations, cancer medications, nebulizer treatments, and drugs that are injected or infused, such as specialty medications for arthritis. The pilot test will likely face resistance from cancer doctors who have been concerned about tight margins and financial pressures from higher-price infused or injected drugs. Providers may also feel they are being pressured by the federal government into selecting cheaper drugs they don’t feel are as effective.

Source: http://www.msn.com

Sunday, March 6, 2016

Fingertip surgery



A stretchable electronic sensor may replace the scalpel and other operating room tools for some surgical procedures. It lets physicians feel electronic activity and slice tissue with their fingertips. Futuristicnews.com reports that researchers at the University of Illinois, Northwestern University and Dalian (China) University of Technology changed hard semiconductors into flexible electronics “and managed to produce special materials, which could be used for surgical gloves that give their wearer an enhanced sense of touch.

” The news website states that silicon was transformed into ultrathin “nanomembranes, cut into wavy shapes and combined with a rubbery membrane.”

Source: Futuristicnews.com