News Column

Tehran to host

July 13, 2014

Tehran to host

cardio update congress

Science & Technology Desk

The 16th National Congress on Cardiovascular Update will be held at Tehran'sRazi International Conference Center from September 16-19.

Distinguished Iranian and foreign experts will attend the four-day event, which will focus on the latest significant achievements in treating cardiovascular diseases.

Updating skills and knowledge of Iranian experts in treating cardiovascular diseases is the main goal of the congress.

The Iranian Society of Atherosclerosis is organizer of the event.

Some Iranian cardiovascular equipment manufacturing companies will present their products and medications on the sidelines of the congress.

Deep brain stimulation

performed in Shiraz

Science & Technology Desk

For the first time in Iran, deep brain stimulation (DBS) has been performed successfully at Namazi Hospital in Shiraz, southern Iran.

Dr. Ali Razmkon, the head of surgery team, said the procedure is used only for individuals whose symptoms cannot be adequately controlled with medications.

DBS is a neurosurgical procedure involving the implantation of a medical device called a brain pacemaker, which sends electrical impulses through implanted electrodes, to brain nucleus for the treatment of neurological symptoms in Parkinson's and movement disorders such as tremor, dystonia and chronic pain.

The device for implanting the electrodes costs the hospital 400,000.

Parkinson's sufferers who had electrodes implanted in their brains improved substantially more than those who took only medicine, according to the biggest test yet of deep brain stimulation.

Drone lighting

Researchers at MIT and Cornell University hope to provide photographers with squadrons of small, light-equipped autonomous robots that automatically assume the positions necessary to produce lighting effects specified through a simple, intuitive, camera-mounted interface.

According to MIT News, at the International Symposium on Computational Aesthetics in Graphics, Visualization and Imaging in August, they take the first step toward realizing this vision, presenting a prototype system that uses an autonomous helicopter to produce a difficult effect called "rim lighting", in which only the edge of the photographer's subject is strongly lit.

According to Manohar Srikanth, who worked on the system as a graduate student and postdoc at MIT and is now a senior researcher at Nokia, he and his coauthors, MIT professor of computer science and engineering Fredo Durand and Cornell'sKavita Bala, who also did her PhD at MIT, chose rim lighting for their initial experiments precisely because it's a difficult effect.

"It's very sensitive to the position of the light," Srikanth says. "If you move the light, say, by a foot, your appearance changes dramatically."

With the new system, the photographer indicates the direction from which the rim light should come and the miniature helicopter flies to that side of the subject.

The photographer then specifies the width of the rim as a percentage of its initial value, repeating that process until the desired effect is achieved.

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Source: Iran Daily

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