Researchers have completed a successful clinical trial, managing to detect and image radioactive tracers used in PET and in SPECT scans at the same time, with the hope of enabling doctors to scan patients for abnormalities ...
Jul 26, 2019
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For the first time researchers have been able to demonstrate that the brains of a patient and therapist become synchronised during a music therapy session, a breakthrough that could improve future interactions between patients ...
Jul 25, 2019
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Mary Ann Papp's daughter Lisa was worried about her 75-year-old mother.
Jul 25, 2019
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Over the past couple of decades, there has been an explosion of research into "false memories," showing that our memory can be subtly altered by a variety of internal and external factors. Many psychologists think the public ...
Jun 20, 2019
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A novel imaging technique that uses a synthesized form of scorpion venom to light up brain tumors has shown promise in a clinical trial. The imaging system enables neurosurgeons to better see malignant growths that often ...
May 09, 2019
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For many people who care for aging parents, one solution is a safe, responsible nursing home.
May 07, 2019
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Dear Mayo Clinic: Are there ways to prevent colon cancer? What about early symptoms to watch for? I just turned 50, and I've heard colon cancer is more common as you get older. I'd like to lower my risk of getting this disease ...
Apr 11, 2019
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We have introduced an efficient method to superimpose eye fundus images from persons with diabetes screened over many years for diabetic retinopathy. The method is fully automatic and robust to camera changes and colour variations ...
Apr 08, 2019
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Turns out that relationships are the secret to keeping calm and carrying on.
Apr 08, 2019
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Following years of work, Medtronic is launching the newest Mazor X spinal surgery system with robotic navigation in the United States, with two systems already sold in Minnesota.
Feb 28, 2019
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A camera is a device that records images, either as a still photograph or as moving images known as videos or movies. The term comes from the camera obscura (Latin for "dark chamber"), an early mechanism of projecting images where an entire room functioned as a real-time imaging system; the modern camera evolved from the camera obscura.
Cameras may work with the light of the visible spectrum or with other portions of the electromagnetic spectrum. A camera generally consists of an enclosed hollow with an opening (aperture) at one end for light to enter, and a recording or viewing surface for capturing the light at the other end. A majority of cameras have a lens positioned in front of the camera's opening to gather the incoming light and focus all or part of the image on the recording surface. The diameter of the aperture is often controlled by a diaphragm mechanism, but some cameras have a fixed-size aperture.
A typical still camera takes one photo each time the user presses the shutter button. A typical movie camera continuously takes 24 film frames per second as long as the user holds down the shutter button.
This text uses material from Wikipedia, licensed under CC BY-SA
