Here s another example of technological excellence for a social cause- a smartphone for visual impaired persons and that too invented by an Indian.
It is no more just taking calls and answering them but whole lot of functions including the one that enable the blinds to read and send the texts based on Braille system developed long time back. But its digital version is something that can revolutionize this pattern.
The device developed by Sumit Dagar whose company located in IIM Ahmedabad campus has a touch screen which can elevate and depress the contents allowing such persons to read and send texts.
Students will be able to apply the principles of electronic circuits and devices to the use and design of instrumentation in the biomedical area. They will have gained a basic knowledge of the operating principles of electrical and other transducers, analog and digital instrumentation, applied signal acquisition and processing, electrical safety in the medical environment, electrical properties of nerve and muscle physiology; and instrumentation used in cardiopulmonary, neurological, surgical, and rehabilitation areas of medicine.
The effect of radiation transport and quantum noise on image quality is explored in the context of both conventional and newly developed systems. Radiation sources for imaging, mathematical descriptions of image quality, and the performance of humans as visual observers are covered. Specific systems considered include phosphor screen and direct digital radiography systems, Anger camera systems, x-ray computed tomography (CT) systems, and Positron Emission Tomography (PET) systems. Particular emphasis is given to the statistical processes important in radiographic and nuclear medicine imaging systems.
Researchers at the Stanford University School of Medicine have succeeded in transforming skin cells directly into oligodendrocyte precursor cells, the cells that wrap nerve cells in the insulating myelin sheaths that help nerve signals propagate.
The current research was done in mice and rats. If the approach also works with human cells, it could eventually lead to cell therapies for diseases like inherited leukodystrophies — disorders of the brain’s white matter — and multiple sclerosis, as well as spinal cord injuries. The study was published online April 14 inNature Biotechnology.
