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Color of the light regulates the biological clock of animals

April 19, 2015 By Stephanie James 1 Comment

sunsetResearchers from the University of Manchester for the first time have discovered how the color of light impacts the internal clock in the animals and humans.

Animals and humans have an internal clock by which everything functions properly; it is similar to the CPU of the computer which is having a clock that guides all the operations.

Researchers have identified the neurological mechanism for how the internal clock of the body measures the color of the light to determine time.

It is known that the intensity of light varies at sunlight, sunrise and even during twilight.

Researchers have taken mice for the study, they have used different visual stimuli and recorded the electrical activity from the brain clock, they discovered that the neurons of the brain are much sensitive to the color changes between yellow and blue and it is not depended on the brightness of the light.

To create an artificial sky with color changes from sunrise to sunset, they have recorded the brightness and color of the light from the top of the University’s building for a month.

The artificial sky is then created using the data.  Researchers found that the mice has recorded highest blood temperatures after the dusk, which is their general behavior, this means that the body clock of the mice was aligned with the color changes of the artificial sky.

But when the researchers have changed the brightness of the sky, the body clock of the mice was not working with the changes in the brightness i.e. the clock couldn’t synchronize with the brightness and the mice was more active before dusk.

Researchers said, “This is the first time that we’ve been able to test the theory that color affects our body clock in any mammal. It has always been very hard to separate the change in color to the change in brightness but using new experimental tools and a psychophysics approach we were successful.”

They added, “What’s exciting about our research is that the same findings can be applied to humans. So, in theory, color could be used to manipulate our clock, which could be useful for shift workers or travelers wanting to minimize jet lag.”

 

Filed Under: Uncategorized Tagged With: biological clock

Opioid pain relievers may lead to complicated pregnancy

April 15, 2015 By Stephen Kenwright Leave a Comment

opioidPregnant woman who uses opiod pain relievers is putting their infants after birth at a higher risk of developing neonatal abstinence syndrome (NAS).

Researchers from the Vanderbilt University Medical Center found that doctors are prescribing opioid drug to pregnant women to get relief from pain, but this is ending their infants at a higher risk of developing NAS.

NAS was believed to affect infants whose mother binges on illegal drugs during pregnancy, but the recent study has linked opioid with NAS. Opioid is legal drug.

The researchers have studies 112,029 pregnant women and found that the there are grim symptoms in the children born to the mothers who have taken opioids. Nearly 28 percent women were taking opioid.

Stephen Patrick, assistant professor of pediatrics and health policy at Vanderbilt said, “We found that babies exposed to opioids pain relievers were more likely to be born premturely, have complicated births, low birth weight and have complications such as meconium aspiration syndrome (a sign of infant distress at birth) and respiratory distress.”

“Not all babies exposed to opioids have drug withdrawal after birth for reasons that aren’t entirely clear. Our study found that several things increased an infant’s risk, including the duration of opioid use, the type of prescription opioid, how many cigarettes a woman smoked and if they used a common antidepressant medicine called selective serotonin reuptake inhibitors.”

Opioids are similar to opiate drug and include codeine, morphine and methadone.

Patrick said that physicians should be careful in  prescribing opioid drug to pregnant women as this may have an effect on her child.

Public health efforts should focus to avoid opioid and tobacco during pregnancy to avoid complication in pregnancy.

The study shows the opioid and other narcodic drug has serious impact on the infant, and hence state should regulate the drug usage for pregnant women.

Filed Under: Uncategorized Tagged With: opiod

Ask Seaworld campaign draws criticism

March 29, 2015 By Carrie Davis

SeaworldSeaWorld has started a new marketing campaign this week about its animal care online, but it seems it has been criticized rather than doing any good.

The campaign started in twitter where it is calling people to use #AskSeaWorld to ask any questions related to animal care from breeding to conservative safety and training.

SeaWorld came under news for its treatment of killer whales when the documentary “Blackfish” was released criticizing the company’s practices.

PETA, the People for Ethical Treatment of Animals, has long called out SeaWord for its ill treatment with the animals.

On Thursday, PETA posted on twitter, “Why do you LIE & tell guests collapsed dorsal fins are normal when only 1% suffer this in the wild?”

It was retweeted 487 times, and the SeaWorld didn’t reply to it.

The company says these are all “false accusations by activists who oppose whales and other animals in zoological settings.”

The company stock is nearly 40 percent down in the past year and it is 50 percent below its all-time high.

Company wants to erase it’s the negative image with this campaign.

 

Filed Under: Business & Company, Uncategorized Tagged With: campaign backfires, seaworld campaign

Facebook to enhance Messenger mobile application

March 27, 2015 By Kyle Mills

 F8 Facebook Developers ConferenceFacebook unveiled plans to enhance its Messenger mobile application to allow users to send custom videos, track online orders, book reservation.

This makes the app a tool for commerce.

Facebook announced that the app will come with the embedded video player which makes it easier for users to host their videos on their pages.

It also comes with another tool which will help business track mobile ads effectiveness.

This is fulfillment of the commitment made by facebook to extent its suit of mobile apps, which includes Instagram, Whatsapp and Messsenger.

Facebook has also simplified how user will share content online

Mark Zukerberg at Facebook’s annual F8 developers’ conference in San Francisco said, “Moving from just being a single service to a family of world-class apps to help people share in different ways is the biggest shift in our strategy to connect people in many years.”

 Messenger now has 600 million users and it was launched in 2011.

Facebook said that there are about 40 other apps which now connect to Messenger through the Messenger Platform, which includes Everlane, Zuilily, e-commerce companies. They say that consumers can shop online by sending thumps- up icon. The imitative is led by David Marcus who was hired form eBay last year.

Filed Under: Techie, Uncategorized Tagged With: 40 apps connected to messenger, enhance messenger, Facebook messenger app

Avian Influenza hits 18 states

March 24, 2015 By Doyle Buehler

chickens18 states in the Unites States have bird flu or Avain Influenza according to Dr Akinwumi Adesina, Minister of Agriculture and Rural Development.

322 poultry farms have been affected by the bird flu.

In Ibadan, there was a two day refresher training course on Avian Influenza prevention and contamination for federal state epidemiology officers.
The highest number of farms infected is at Kano with number reaching 156, followed by Pleateau 82, Bauchi 19 and Kaduna 14.

The United States Agency for International Development (USAID) is partnering with the federal government to organize training workshop and capacity building to officers in an effort to contain the disease. There are 160 participants in the workshop.

Adesena disclosed that the resurgence of the disease affected poultry at the point of time when the country was becoming self-sufficient in poultry and its products, with all the possibility of exports to the ECOWAS sub-region.

He further added that we are facing similar fate as the one in February 2006 to July 2008 when we were at the point that the country will become self sufficient in poultry, bird flu affected the farms.

“The outbreak affected poultry farms in 25 states and the FCT that led to depopulation of more than 1.2million birds, destruction of 118, 183 eggs and payment of the sum of N631 million as compensation.”

The strategy is to contain the disease without creating any uncessary panic said the minister.

 

Filed Under: Uncategorized Tagged With: Avain Influenza, bird flu, united states

Comet 67P is slowly spinning down

March 22, 2015 By Kyle Mills

ESA_RosettaAt the Royal Aeronautical Society the European space agency were telling that the icy comet takes 12.4 hours to complete one rotation; but they have observed that it has extended by about a second a day and this rate of change is increasing as the comet gets active.

So the comet which is observed by Europe’s Rosetta satellite is very gradually spinning down.

Flight director Andrea Accomazzo said “The gas jets coming out of the comet – they are acting like thrusters and are slowing down the comet.”

He further added that his team has learnt to fly Rosetta around the 10-billion-tonne, 4km-wide body with remarkable precision.

Navigators use a system of landmarks on the comet to understand how it is rotating and moving through space. This information is fed into a model that helps plan a trajectory for the satellite. While collecting this information they realized that it is not turning up in the right place.

In September last year also the rotation period extended by 33 ms per day.

Now as the comet is approaching towards sun it is throwing out gases and dust the rotation speed has reached a second per day.

Accomazzo said, “OK, it’s not going to slow down completely – but this gives you an order of magnitude for the accuracy we’re now achieving with the navigation of the spacecraft around the comet.”

Philae the lander ran out of power and is currently hibernating. The scientists are waiting for it to get charged. Philae need temperature higher than -45 degrees Celsius and atleat 5 watts of power to turn on and sent the signals to earth via the orbiter.

Scientists are hoping that the Philae reawakens as the Comet 67P approaches the sun.

Filed Under: Uncategorized Tagged With: Comet 67P, European Space Agency, Philae, Rosetta

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