Fragrance and perfume

[Michaelangelica]

Originally Posted by InfiniteNow

I wonder if it works the same way with females... I remember lots of girls during pubescent times who would have paid money to increase their upper assets.

Now there is a money-making idea!!
Can I help with the research?

[Michaelangelica]

Dog bites machine

Breath test for cancer | COSMOS magazine

News
Breath test for cancer
Tuesday, 27 February 2007
Sarah Bartlett with AFP
Cosmos Online
Breath test for cancer
The tiny, inexpensive sensor used to detect lung cancer.
Image: Thorax

SYDNEY: A breath test can successfully pick up the early stages of lung cancer, according to a new U.S. study.

People with lung cancer breathe out a chemical signature - a unique pattern of volatile organic compounds caused by metabolic changes in cancer cells.

The sensor, which is about the size of a 10 cent piece, is made up of 36 spots of different chemically sensitive compounds impregnated on a disposable cartridge.
Scientists have been working on a breath test for cancer since 1985, using gas chromatography and mass spectrometry. But machines using these technologies are particularly expensive and doctors require advanced training in their use.

At present, however, technology is being outperformed by canines, Mazzone says. In a 2006 study, dogs trained to distinguish the breath of patients with lung and breast cancer were found to be 99 per cent accurate.

[Michaelangelica]

Want a better memory? Stop and smell the roses
Fri Mar 9, 2007 2:32PM GMT
Email This Article | Print This Article | RSS Feed
[-] Text [+]

By Maggie Fox, Health and Science Editor

WASHINGTON (Reuters) - People who want to learn things might do better by simply stopping to smell the roses, researchers reported on Thursday.

German researchers found they could use odors to re-activate new memories in the brains of people while they slept -- and the volunteers remembered better later.
Photo

Writing in the journal Science, they said their study showed that memories are indeed consolidated during sleep, and show that smells and perhaps other stimuli can reinforce brain learning pathways.

Jan Born of the University of Lubeck in Germany and colleagues had 74 volunteers learn to play games similar to the game of "Concentration" in which they must find matched pairs of objects or cards by turning only one over at a time.

While doing this task, some of the volunteers inhaled the scent of roses. The volunteers then agreed to sleep inside an MRI tube. Functional magnetic resonance imaging was used to "watch" their brains while they slept.

Want a better memory? Stop and smell the roses | Science & Health | Reuters

[Michaelangelica]

Our sense of smell can be trained; but is the one sense that very rarely is.

Human Sense of Smell Nothing to Sniff At - Forbes.com

Human Sense of Smell Nothing to Sniff At
12.18.06, 12:00 AM ET

MONDAY, Dec. 18 (HealthDay News) -- Lost in the dark, without sight, sound, or clue? Follow your nose.

New olfactory research suggests that when it comes to tracking scent at ground-level on open terrain, the average human's sense of smell is stronger than most people believe.

"There's this general assumption that people have a bad sense of smell," said study lead author Jess Porter, a Ph.D. candidate in biophysics at the University of California at Berkeley. "But we found that people can certainly sniff their way accurately around a spatial context -- although less successfully and slower if they have only one nostril to work with."

The new American-Israeli study, published online Dec. 17 in Nature Neuroscience, reports that people can, in fact, be trained to rely exclusively on ground-level smelling to successfully navigate unknown territory. In fact, they instinctively mimic certain animal behaviors, including enlisting each nostril to independently identify distinct smells and "triangulate" a path.

Porter joined Berkeley psychology professor Noam Sobel and a team of colleagues. Together, they conducted five experiments aimed at assessing people's ability to track scents.

[Michaelangelica]

Very good Scientific American article highlighting some old, and recent, research.

The Scent of a Man: Sciam Observations

[Monomer]

Originally Posted by Michaelangelica

Breath test for cancer | COSMOS magazine

There's a breath test for Helicobacter pylori too:

Principles of Urea Breath Testing

Subjects are given urea labelled with 14C or 13C orally.

H. pylori produces copious amounts of urease which breaks down (hydrolyses) the labelled urea to produce labelled CO2 and ammonia.
CO2 is dissolved in the blood stream and transported to the lungs for removal.
Exhaled CO2 is trapped, processed and analysed.
14C is a beta emitting radioisotope and can be detected using liquid scintillation counting
13C is a stable, non-radioactive isotope that is measured using a mass spectrometer

Urea Breath Testing - general information

[Michaelangelica]

Originally Posted by Monomer

There's a breath test for Helicobacter pylori too:
Urea Breath Testing - general information[/url]

Traditional Chinese healers have been smelling breath for a thousand years for diagnosis. Funny, what is new is old.

In perfumery to analyse the small of a flower they use "head space analysis" Which gives a very good GC of what the flower fragrance contains.
Then, if you can work out what the squiggles on the GC mean, you can make a copy of the fragrance.

Maybe we should be playing with Head Space Analysis and human health and disease diagnosis?

[Monomer]

Originally Posted by Michaelangelica

In perfumery to analyse the small of a flower they use "head space analysis" Which gives a very good GC of what the flower fragrance contains.
Then, if you can work out what the squiggles on the GC mean, you can make a copy of the fragrance.

Maybe we should be playing with Head Space Analysis and human health and disease diagnosis?

I found this article about using a HeadSpace analyser to diagnose Bacteriuria:

The Osmetech Microbial Analyzer (OMA) is an automated headspace analyzer fitted with a novel detector system consisting of an array of polymer sensors, each of which responds to different volatile organic compounds. The system can be used for screening clinical urine specimens for significant bacteriuria by sampling urine headspace and subjecting the output of the multiple-detector response to principal component analysis.

Diagnosis of Bacteriuria by Detection of Volatile Organic Compounds in Urine Using an Automated Headspace Analyzer with Multiple Conducting Polymer Sensors


This article is from the 70s and talks about the detection of Escherichia coli and Proteus species in urine by head-space gas-liquid chromatography:
Assessment of technique for rapid detection of Escherichia coli and Proteus species in urine by head-space gas-liquid chromatography.

[orbsycli]

Perfumeros!!

Click this link!!

perfumeros - vegetalismo - tribe.net

TONS of good information!!

LOVE

[Michaelangelica]

German Police Collect Scent Samples of G8 Protesters
Critics accuse the police of resorting to Stasi methods to sniff out protestors.
Großansicht des Bildes mit der Bildunterschrift: Critics accuse the police of resorting to Stasi methods to sniff out protestors.

German police have collected body scent samples of left-wing activists in the lead up to the G8 summit. Some politicians accuse the government of resorting to the dubious methods of the East German secret police.

German Police Collect Scent Samples of G8 Protesters | Germany | Deutsche Welle | 23.05.2007