STAGE M2 2010-2011 Préparation, caractérisation et optimisation de films de soie Les polymères d’origine naturelle présentent des caractéristiques chimiques et physiques qui en font des partenaires très présents dans de nombreux domaines industriels tels que l’agro-alimentaire, l’industrie pharmaceutique, l’automobile…Les fibres de soie possèdent des propriétés
- A |
J |K |
U |V |
Microsoft word - studies proving the effectiveness _2_.docStudies Proving the Effectiveness of Negative
Negative ions help prevent respiratory-related illnesses.
In a study conducted in a Swiss textile mill, negative ionizers were placed in two,
60’ by 60’ rooms, each containing 22 employees. In one room, the negative ion electronic air cleaner was turned on during the course of the study. In the other room, the negative ion air purifier was permanently turned off, although the employees in this room were led to believe they were working in a room enriched by negative ions. During this six-month study, a total of 22 sick days were lost by employees working in the room in which the negative ionizer was operating. In the room where the machine was not operating, a total of 64 days were lost to sickness. During a month-long flu epidemic, the first group lost a total of 3 days to sickness, while the second group lost a total of 40 days to sickness (Stark, 1971). In a test involving a Swiss bank office, one group of 309 worked in a negative ion- treated environment. A second group of 362 worked in an untreated environment. Over the next several months, for every day lost to respiratory illness (cold, flu, laryngitis, etc.) in group one, 16 days were lost to respiratory illness in group two (Soyka, 1991). In a Surrey University study at the Norwich Union Insurance Group headquarters, eight negative ion generators were placed in the computer and data preparation
section. Before the test, the research team spent a month compiling incident rates
for complaints of sickness and headaches. During the test in which the negative ion
air purification systems were in operation, incidents of sickness and headaches
were reduced by 78%. After testing was completed, the Norwich Union opted to
keep the negative ion electronic air cleaners (Soyka, 1991). Negative ions counteract the effects of smoking.
High levels of negative ions neutralize the effect that tobacco smoke has on the
cilia. Cilia are the microscopic hairs located in the trachea that move rapidly back and forth to prevent pollutants and toxins from traveling into the vulnerable areas of the respiratory tract. The faster the cilia move, the more effective they are. However, tobacco smoke slows down the ciliary beat, diminishing the body’s ability to keep cancer-causing pollutants from entering the depths of the respiratory tract. Tests have shown though, that adding high levels of negative ions to the air
accelerates the ciliary beat to normal levels (Soyka, 1991).
Negative ions are a natural anti-depressant.
. . . and without the side effects!
In a study conducted by Columbia University, 25 people with SAD (Seasonal
Affective Depression) sat in front of a negative ion air purifier for a half hour
every morning for a month. Half the subjects were given a low level of negative
ions, and the other half a high level. The higher level of negative ion treatment
proved to be as effective against SAD as antidepressants, such as Prozac and Zolof, and without the side effects of these drugs (Finley, 1996). Negative ions for a positive attitude
Positive ions, which are found in abundance in most indoor environments, cause an
overproduction of serotonin. Serotonin is a neurotransmitter that helps the body
deal with mental, emotional, and physiological stress. An overproduction initially causes hyperactivity, which rapidly leads to anxiety, and in some cases depression. Negative ion treatment has proven to be successful in reducing the
overproduction of serotonin, and therefore successful in alleviating depression in
Negative Ions help us to sleep better.
In 1969, French researcher found that the overproduction of the neurohormone
serotonin caused sleeplessness and nightmares. In using a negative ion
electronic air cleaner to treat a group of people experiencing sleeping problems
as a result of serotonin overproduction, he found that most of them were able to
U.S. Dept. of Agriculture
A recent study by the U.S. Dept. of Agriculture found that ionizing a room led to
52% less dust in the air, and 95% less bacteria in the air (since many of the
pollutants found in the air reside on floating dust particles).
The U.S.D.A. also performed another study to test the effectiveness of negative ionization at removing airborne Salmonella Enteritidis. The negative ions
drastically reduced the airborne salmonella particles, prompting the following
statement from the USDA:
"These results indicate that negative air ionization can have a significant
impact on the airborne microbial load in a poultry house and at least a portion
of this effect is through direct killing of the organisms."
Good Housekeeping Magazine
In March of 1999, Good Housekeeping Magazine had its engineers test an
ionizer by using a smoke test, and found that it cleared out the smoke in a tank.
Agriculture Research Service (of USDA)
The Agriculture Research Service of the U.S. Dept. of Agriculture tested the
effectiveness of ionizers for removing dust in a poultry hatchery. The dust level is
very high in such an environment. In this study, the use of an ionizer resulted in
dust removal efficiencies that averaged between 81.1 and 92.2%. The airborne
transmission of salmonella (to the eggs) was also significantly reduced as a result.
Journal of Hygiene
Scientists showed that ionization reduced bacterial levels in burns and plastic
surgery units by over 96% after a two week period, which results in much better
Journal of Applied Microbiology
The use of negative ions was even found by scientists to reduce the presence of
airborne viruses by about 40%. A study featured in the 1987 issue also showed
the negative ions are free from any adverse side effects.
A 1976 study featured in this publication provided evidence that negative ions can
have a biologically lethal effect on airborne microorganisms.
Journal of Hygiene
A 1979 study found that using negative ionization in the air protected chickens from
airborne infection of the deadly Newcastle Disease Virus. Journal of Food Protection
A 2001 study found that airborne negative ionization was highly effective at
destroying airborne and surface salmonella. University of Medicine and Pharmacy (Romania)
A test on male rats showed that just moderate levels of negative ions increased the
resistance of the rats, reducing or eliminating the effect of some chemicals. (Summary of Study) Effect of Negative Ions on Drivers
A study by Toyota Central R & D Labs, Inc. found that negative ions can improve
fatigue and cognition of drivers.
Negative Ion Study:
"Negative Air Ions Stimulate Mitochondria" Institute of Theoretical and
Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, Russia. Other Negative Ion Studies:
"Health Tips: Healthy Breathing & Negative Ions": Monumental Message "Negative Ions and Computers": Alaska Science Forum Air Ionizers wipe out hospital infections: New Scientist "Treatment of seasonal affective disorder with a high-output negative ionizer": The Good Drug Guide Negative ions explained in layman's terms: Chemtrail web site Advanced research on Ions: by Scientist Guy Cramer; Project Air Penn State University Graduate School of Architectural Engineering & Dept. of Biology "Negative Air Ions Stimulate Mitochondria" Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region, Russia.
Tableau des réductions et restrictions. Valables les 11,12 13 octobre 2011 exlusivement Réduction sur forfait Avantages Compagnies Les marques concernées 5% de Réduction sur croisière Exceptions (aérien supplémentaires Réservation participantes si différentes en Port Port Hors Taxes éventuels Aériennes) Ces réductions et avantages so