News tagged with spectroscopy
(HealthDay)—Patients with Cushing's syndrome have abnormal brain metabolites suggestive of neuronal dysfunction even after they appeared to have been cured, according to a study presented at the annual ...
Diseases, Conditions, Syndromes May 03, 2013 | not rated yet | 0
Tight control of blood glucose levels is critical to mitigating the long-term complications of diabetes; however, the intensive insulin therapy required for this control is frequently accompanied by recurrent episodes of ...
Medical research Apr 01, 2013 | not rated yet | 0
(HealthDay)—For vitamin D deficient individuals, cholecalciferol therapy is associated with reduced phosphocreatine recovery half-time in skeletal muscle and with improvements in fatigue, according to a ...
Health Mar 19, 2013 | not rated yet | 0
A new research technique, pioneered by Dr. Maria Angela Franceschini, will be published in JoVE (Journal of Visualized Experiments) on March 14th. Researchers at Massachusetts General Hospital and Harvard M ...
Medical research Mar 14, 2013 | 5 / 5 (1) | 0
In addition to its well-known effects on the CNS, alcohol consumption has a significant impact on metabolism. After consumption, the body rapidly begins converting ethanol to acetate, which can serve as an energy source for ...
Addiction Mar 08, 2013 | not rated yet | 0
The pattern of blood flow in the prefrontal cortex in the brains alters with age during multi-tasking, finds a new study in BioMed Central's open access journal BMC Neuroscience. Increased blood volume, measured using oxygen ...
Neuroscience Jan 17, 2013 | not rated yet | 0
Improving the accuracy of cancer diagnoses: New spectroscopy technique could help doctors better identify breast tumors
Tiny calcium deposits can be a telltale sign of breast cancer. However, in the majority of cases these microcalcifications signal a benign condition. A new diagnostic procedure developed at MIT and Case Western ...
Cancer Jan 03, 2013 | not rated yet | 0 |
Ability to chart the molecular progress of diabetes brings personalized medicine closer to realization
Researchers in Singapore have succeeded in tracking, for the first time, the molecular changes caused by type 2 diabetes that affect how the body handles glucose production in the liver. In a series of experiments ...
Diabetes Dec 19, 2012 | 5 / 5 (1) | 0
(Medical Xpress)—Rice University scientists have discovered a new way to look inside living cells and see the insoluble fibrillar deposits associated with Parkinson's disease.
Parkinson's & Movement disorders Dec 17, 2012 | 5 / 5 (2) | 0 |
(Medical Xpress)—Research by University of Notre Dame biochemist Anthony S. Serianni is providing new insights that could have important implications for understanding and treating diabetes.
Diabetes Dec 11, 2012 | 5 / 5 (1) | 0 |
Using solid-state nuclear magnetic resonance (NMR) spectroscopy, researchers at Luleå University of Technology in collaboration with Warwick University in the UK for the first time in the world managed to ...
Alzheimer's disease & dementia Nov 05, 2012 | not rated yet | 0
People who like to nap say it helps them focus their minds post a little shut eye. Now, a study from Georgetown University Medical Center may have found evidence to support that notion.
Neuroscience Oct 17, 2012 | 4.4 / 5 (7) | 2 |
It took Wayne Wentzel 14 years, multiple tissue biopsies and travel to four hospitals across multiple states to identify the underlying source of his rising prostate specific antigen (PSA) level. He finally ...
Cancer Oct 05, 2012 | 5 / 5 (1) | 1
(Medical Xpress)—Research carried out at the University of Dundee has raised hopes of developing a quicker and more reliable new method of detecting urinary bladder cancer at an earlier stage.
Cancer Oct 03, 2012 | 5 / 5 (1) | 0
In 2010 breast reconstruction entered the Top Five list of reconstructive procedures in the US, with 93,000 procedures performed, up 8% from 2009, and 18% from 2000. This is among the most common skin flap procedure performed.
Cancer Sep 25, 2012 | not rated yet | 0
Spectroscopy was originally the study of the interaction between radiation and matter as a function of wavelength (λ). In fact, historically, spectroscopy referred to the use of visible light dispersed according to its wavelength, e.g. by a prism. Later the concept was expanded greatly to comprise any measurement of a quantity as function of either wavelength or frequency. Thus it also can refer to a response to an alternating field or varying frequency (ν). A further extension of the scope of the definition added energy (E) as a variable, once the very close relationship E = hν for photons was realized (h is the Planck constant). A plot of the response as a function of wavelength—or more commonly frequency—is referred to as a spectrum; see also spectral linewidth.
Spectrometry is the spectroscopic technique used to assess the concentration or amount of a given species. In those cases, the instrument that performs such measurements is a spectrometer or spectrograph.
Spectroscopy/spectrometry is often used in physical and analytical chemistry for the identification of substances through the spectrum emitted from or absorbed by them.
Spectroscopy/spectrometry is also heavily used in astronomy and remote sensing. Most large telescopes have spectrometers, which are used either to measure the chemical composition and physical properties of astronomical objects or to measure their velocities from the Doppler shift of their spectral lines.
For more information about Spectroscopy, read the full article at
This text uses material from Wikipedia and is available under the GNU Free Documentation License.