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Tag: "pulses" at medical news

Role of zinc in development

...oping countries where people eat a lot of cereals, pulses and vegetables but no animal products. This sort of diet contains lots of phytates, which bind iron and zinc, making it difficult for the blood to absorb them. Scientists now believe that zinc deficiency could be as common as iron deficiency, which ...

Resurface your skin

...ctually removed. Instead, a gentle series of light pulses can remove redness, dilated blood vessels, age spots and lines. As the targetted cells absorb laser light they are broken apart and absorbed by the body. This promotes production of new collagen - the protein that gives skin its youthful elasticity. ...

A boon to epileptics

...d on the side of the head to direct// the magnetic pulses to the brain. The use of high-frequency pulses has been blamed for triggering epileptic seizures, and this is some of the first work using low-freq...

Attacking therapy with electricity

...ell membranes which is being punched by electrical pulses could give better delivery of drugs. The effectiveness of many potentially powerful treatments //including cancer therapy and gene therapy are limited by the difficulty of getting drug molecules in through cell membranes. Researchers in San Diego, C...

An Eye Opener for the blind

...hen triggers a second microcomputer that transmits pulses to an array of 68 platinum electrodes implanted on the surface of the brain's visual cortex. Bringing wires through the skin without discomfort or infection is one of many independent inventions that has made the new visual prosthesis possible.When...

Discovery of World’s smallest laser

...Single nanowires are “pumped” with extremely short pulses -less than one-trillionth of a second - of ultraviolent radiation from a high power laser, after which they emit ultraviolet laser light that is “photographed” by the sharpened tip of an optical fibre in the microscope. By measuring the patterns of...

Athletes Are More Prone To Environmental Pollutants Due To Choice Of Diet

...ortsmen/women of meat, dairy products, cereals and pulses was found higher than that of the general population. These food groups, with the exception of pulses, showed comparatively higher concentrations of the analyzed pollutants. In contrast, food groups like fish and oils/fats, which showed also importan...

FDA Approved Nerve-Stimulation Therapy Now Available In New York

...implanted in the chest area. The device sends mild pulses to the brain through the vagus nerve in the neck. A generator that runs under the skin to the left vagus nerve powers the device through a thin insulated wire. The vagus nerve is one of the 12 cranial nerves and serves as the body’s information hig...

Simulated Heart Tissue Enhances Understanding of Arrhythmias And Defibrillator Failure

... with pace-setting pulses. The team found that the pulses managed to arrest the wave in 80% of cases, while ...ors. ICD devices render a potent shock when fast pulses mobilize tachycardia. Continued study of the engineered tissues could reveal further regarding bette...

Efforts To Replace Reading Glasses Are In View

...t of presbyopia, the U-M team used ultrafast laser pulses to create tiny gas bubbles within the intraocular lens. Before the bubbles diffuse, researchers hit them with high frequency sound waves, which push the bubbles against neighboring lens fibers. ‘Part of the sound is reflected, and from the characte...

Brain Controlled Movements Are Studied Using Robotic- Joystick

...g as the robot driver pushed repeatedly - in quick pulses - to one side. The joystick then pushed repeatedly in the opposite direction and again the subjects were asked to keep the joystick centered. The research team found that after all this pushing in different directions the subjects still were inclin...

Vagal Nerve Stimulation Works To Treat Severe Depression

...gal nerve in the neck. The device emits electrical pulses to simulate the brain, and also is used to treat epilepsy. Doctors don't know exactly why vagal nerve therapy works, but Dr. Conway says his new research gives some clues. When Dr. Conway examined the neuroimages of four patients 24 months afte...

Shocked out of drugs?

...des inserted behind the ear through which electric pulses are sent into the brain. This is known to bring about a reduction in the urge to consume drugs. Professor Neil McKeganey, who is quite an expert on drugs said” One of the reasons it's terribly difficult for addicts to get off these drugs is the cra...

Morning Sickness: Nature's Warning Signal To Would –Be- Mom

...ose mothers who fed on a predominantly cereals and pulses diet. The lead researcher Dr Craig Roberts said," While there may be no particular harm in eating, say, meat, now that we have refrigeration and best before dates, our bodies may be pre-programmed by evolution to avoid these particular foodstuffs ...

Bottleneck in Blood Supply Makes Brain Vulnerable to Strokes

...brief (less than one-trillionth of a second) laser pulses to peer below the surface of the brain. In contrast to a previous study, in which the team showed there was very little disruption in blood flow when a clot formed in the blood vessels on the surface of the brain, a blockage in the penetrating art...

Secrets of the Heart's Signals

...ical engineering department. The subtle rhythms, pulses and patterns of the human heart have fascinated poets, lovers and scientists alike for millennia, yet the heart's deepest secrets remain tightly locked. Tulane biomechanical engineer Natalia Trayanova and her team may have the most incisive insight i...

Activation of a Particular Brain Region Predicts Altruism: Study

...nance imaging (fMRI), which uses harmless magnetic pulses to measure changes in oxygen levels that indicate nerve cell activity. The scans revealed that a region of the brain called the posterior superior temporal sulcus was activated to a greater degree when people perceived an action -- that is, when th...

Bladder Pacemaker For Incontinence

...pty the bladder, while delivery of lower frequency pulses to the same nerve can significantly increase bladd...d 65 percent of the bladder volume. The electrical pulses were delivered at a high frequency, mimicking the normal rate of sensory nerve impulses. "We knew ...

Multiple Low-energy Plasma Skin Treatments Beneficial in Reducing Facial Wrinkles

... energy from plasma is emitted in millisecond-long pulses to target skin tissues. The energy level is set manually on the device, which is, according to the authors, "cleared by the U.S. Food and Drug Administration for multiple, single-pass, low-energy treatments and single-treatment, one-pass, high-energy...

Spinal Cord Stimulation Pilot Study for Chronic Angina

...ation (SCS) is a therapy that uses mild electrical pulses from an implanted device to stimulate targeted ner... cardiac pacemaker, except that instead of sending pulses to the heart, it sends them to leads located near the spinal cord. In this trial, SCS is being teste...

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