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Tag: "frequencies" at medical news

El Ni?o cycles linked to cholera outbreaks

...8. The Ellner model took into consideration recent frequencies of cholera cases, an ENSO index based on sea-surface temperatures in the Pacific and seasonal variation in local climates. Peaks in cholera incidence at the Bangladesh hospital were found to occur every 3.7 years -- exactly the same frequency as of E...

Hope for tinnitus sufferers

...rge region of their brain which corresponds to the frequencies of the rogue sounds. A distortion also occurs in patients with phantom limb pain who have a shrunken area of that part of the brain which represents the amputated arm or leg. Researchers successfully treated amputees by asking them to identify the p...

T-waves to sweep over imaging technology

...gion of the electromagnetic spectrum -- defined by frequencies from 0.1 to 10 THz, just between infrared light and microwave radiation. The waves have already invited research in a multitude of diverse sectors such as the semiconductor materials, medicine, manufacturing, space, and defense industries. T-ray app...

Have You Ever Wondered Why Male And Female Voices Differ?

... voices. This causes a more complex range of sound frequencies than in a male voice. When a man hears a female voice the auditory section of his brain is activated, which analyses the different sounds in order to `read′ the voice and determine the auditory face. When men hear a male voice the part of the brain...

Pharma Companies May Influence The Decisions Of Medical Students

...ts’ attitudes about gifts, and correlates of these frequencies and attitudes. In 2003 the researchers distributed a 64-item anonymous survey to 1,143 third-year students at 8 U.S. medical schools, exploring their exposure and response to drug company interactions. In 2005, the researchers conducted a national su...

Flu-Drugs Are Causing Resistance Across The World

... in Asia. Some Asian countries had drug resistance frequencies exceeding 70%. The researchers were alarmed to find such a dramatic increase in drug resistance in circulating human influenza viruses in recent years. Their report has broad implications for agencies and governments planning to stockpil...

Small Biosensor To Enable Cancer Detection

...to change in frequency. The difference between the frequencies of the two modes of vibration is measured, enabling the detection of tiny amounts of cancer specific marker. McNeil said: "We are confident that this new technology has the potential to improve the prospects of successful treatment for these cancer...

New Test Offers Hope in Effective Hearing Aid Design for Babies

...sed on eliciting responses from brain to different frequencies played against a baseline noise while the individual is asleep. The accuracy of this test would be first tested on adults before it can be used in babies. Hair cells present in the cochlea (a part of the ear) has the remarkable ability to respond t...

Sound Separated into Sound Frequencies

...uent frequencies. That means that particular sound frequencies best activate certain groups of neurons in the aud...ich areas of the brain are responsible for certain frequencies - but mainly in animals, like those of the macaque monkey. These kinds of studies are only rarely ...

Brain Regions Do Not Communicate Efficiently in Adults with Autism

...be of the persons with autism within two different frequencies of brain waves, the delta and theta bands. This part of the brain is associated with language, which is impaired in many people with autism. A global pattern of decreased neural connectivity between the frontal lobes and the rest of autistic brain ...

Breeding success by delving into the honey bee sex gene

...ls about how many alleles there are and what their frequencies are, bee breeders can design better strategies to avoid producing sterile males," Zhang said. "Our work aids in this effort by providing a direct tool to examine alleles from different populations." In the research, Zhang and coworkers from U-M, Mic...

Soldiers Exposed To Gunshot Noise Need Better Hearing Protection

...aring protectors that will muffle the most harmful frequencies while still enabling soldiers to communicate with each other. The study’s authors recommend the use of noise-reducing earmuffs for that purpose. The study’s purpose was to determine what effect prolonged exposure to gunfire could have on soldiers. ...

Researchers Make Progress in Studying Genetic Traits of India-born Populations

...e from India, these results still suggest that the frequencies of many genetic variants are distinctive in India compared to other parts of the world. 'We were struck both by the low level of diversity amongst people spanning such a large geographical region, and by the fact that people of the Indian sub-cont...

Indians Make One Major Human Race: US Study

...e from India, these results still suggest that the frequencies of many genetic variants are distinctive in India compared to other parts of the world, an Indian American scientist who led the study said. "We were struck both by the low level of diversity amongst people spanning such a large geographical region...

Sleep Disturbances Could Affect Performances in School

...e indicating that sleep disturbances occur at high frequencies in adolescents and significantly affect daytime performance, as measured by GPA," said Pagel. Both restless legs and difficulty concentrating during the day are symptoms associated with the diagnosis of Attention Deficit Hyperactivity Disorder (AD...

Drug Used to Prevent HIV Transmission from Mother to Child Damages DNA

...AZT in the blood of newborns. They found increased frequencies of glycophorin A mutations in the red blood cells ...the researchers observed ten-fold increases in the frequencies of micronucleated reticulocytes (MN-RET) in the women and infants whose prenatal drug regimen includ...

Drug Used to Prevent HIV Transmission from Mother to Child Damages DNA

...AZT in the blood of newborns. They found increased frequencies of glycophorin A mutations in the red blood cells ...the researchers observed ten-fold increases in the frequencies of micronucleated reticulocytes (MN-RET) in the women and infants whose prenatal drug regimen includ...

Lizard Mothers Dress Their Progeny to Ensure Success in Later Life

...d blue-throated females with striped backs. 'The frequencies of yellow and orange were both increasing in the wild that year, so the females exposed to orange neighbors and yellow sires in the experiments had the most fit progeny,' Lancaster said. 'But under different environments, maybe the progeny that weren...

Radical Idea of Implanting Tiny Electrodes to the Deaf

...g the possibility of restoring sensitivity to high frequencies while preserving remaining low-frequency hearing. Middlebrooks says its possible that the low power requirements of the auditory nerve implants might lead to development of totally implantable devices. That would be an improvement over the external...

Essential Tones of Music Rooted in Human Speech

...um analyzer, the relationships between the various frequencies that a speaker uses to make vowel sounds correspond neatly with the relationships between notes of the 12-tone chromatic scale of music, Purves said. The work appeared online May 24 in the Proceedings of the National Academy of Sciences. (Download ...

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