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charlottecr

Effects of Lead - 0 views

www2.epa.gov/...learn-about-lead

lead

shared by charlottecr on 30 May 14 - No Cached
  • Children Even low levels of lead in the blood of children can result in: Behavior and learning problems Lower IQ and Hyperactivity Slowed growth Hearing Problems Anemia In rare cases, ingestion of lead can cause seizures, coma and even death.
charlottecr

Human Health and Lead, Addressing Lead at Superfund Sites | Superfund | US EPA - 0 views

www.epa.gov/...health.htm

lead

shared by charlottecr on 30 May 14 - No Cached
  • In children, lead poisoning can cause: damage to the brain and nervous system behavioral problems anemia liver and kidney damage hearing loss hyperactivity developmental delays in extreme cases, death Although the effects of lead exposure are a potential concern for all humans, young children (less than seven years old) are most at risk (Reagan and Silbergeld, 1989). This increased vulnerability results from a combination of the following factors:
  • charlottecr on 30 May 14
     
    effects and symptoms of Lead
marthamck

How Drugs are Developed and Approved - 0 views

www.fda.gov/...owdrugsaredevelopedandapproved

shared by marthamck on 30 May 14 - No Cached
  • sure that drugs marketed in this country are safe and effective. CDER does not test drugs, although the Center's Office of Testing and Research does conduct limited research in the areas of drug quality, safety, and effectiveness.CDER is the largest of FDA's five centers.   It has responsibility for both prescription and nonprescription or over-the-counter (OTC) drugs. For more information on CDER activities, including performance of drug reviews,  post-marketing risk assessment, and other highlights, please see the CDER Update: Improving Public Health Through Human Drugs1 The other four FDA centers have responsibility for medical and radiological devices, food, and cosmetics, biologics, and veterinary drugs. Some companies submit a new drug application (NDA) to introduce a new drug product into the U.S. Market.  It is the responsibility of the company seeking to market a drug to test it and submit evidence that it is safe and effective. A team of CDER physicians, statisticians, chemists, pharmacologists, and other scientists reviews the sponsor's NDA containing the data and proposed labeling2. 
claireb27

Safe and sustainable - Fusion - Euratom Energy - Research & Innovation - European Commi... - 0 views

ec.europa.eu/...index_en.cfm

APchem

shared by claireb27 on 11 Jun 14 - No Cached
  • Safety and Environmental Assessment of Fusion Power (SEAFP)
  • chain reaction
  • absence of '
  • ...5 more annotations...
  • no production of long-lived, highly radiotoxic products
  • very low fuel inventory in the reactor during operation and to the rapid cooling that extinguishes the fusion reactions should a malfunction occur.
  • In less than 100 years the residual activity of these materials would be less than the radiotoxicity found in the waste from a conventional coal-fired power station.
  • Fusion power does not produce any greenhouse gases
  • To generate 7 billion kilowatt hours of electricity, a 1000-megawatt fusion power station would consume about 100 kg of deuterium and three tonnes of lithium per year. This compares to the 1.5 million tonnes of coal in an equivalent fossil-fuel plant.
  • claireb27 on 11 Jun 14
     
    Safety
chasefortier

MRI Specialized Imaging Studies - 0 views

www.stmaryhealthcare.org/MRISpecializedImagingStudies

APCHEM MRI

shared by chasefortier on 10 Jun 14 - No Cached
  • MR Angiography: MR angiography can provide diagnostic images of the vascular system without the need for arterial puncture or catheters.  A quick, non-invasive means for evaluating most vascular problems is now available. MR angiography is used to evaluate aneurysms and other malformations in blood vessels, to screen for arterial diseases and abnormalities in the body’s circulating system.  Intravenous Gadolinium contrast is used to visualize abnormalities in the neck, abdomen, renal system and extremities. Non-Invasive Prostate Imaging: MRI can provide extremely accurate information for the diagnosis and pre-treatment planning of prostate cancer.  In the past, this predominantly involved the use of a coil placed within the rectum.  Now, with advances in coil technology and software, these studies can be performed with a coil placed over the pelvic area.  These new coils provide images of similar resolution without the discomfort of the endo-rectal coil. Breast MRI: Breast MRI has emerged as a valuable addition to conventional imaging modalities in the detection of primary and recurrent breast cancer.  It is mainly used in cases that are difficult to evaluate with mammography or ultrasound, or where there are conflicting findings between these two modalities.  MRI also allows early diagnosis of primary and recurrent breast cancer in high-risk patients.
chasefortier

Inventor of the Week: Archive - 0 views

web.mit.edu/...damadian.html

APCHEM MRI

shared by chasefortier on 09 Jun 14 - Cached
  • Experimenting on rats, Damadian discovered dramatic differences in the quality and duration of NMR signals emitted by cancerous versus healthy tissues that confirmed his idea of the MR body scanner.
  • Finally, in 1977, Damadian's team produced the first MRI scan of the human body, using a prototype device he called "Indomitable" (now installed in the Smithsonian Institution).
  • The first MRI scan provided a clear image of the heart, lungs and chest wall with no side effects. Today, MRI scanners can instantly map and analyze any part of the human body in minute detail, allowing visual diagnosis of virtually any medical condition, from strained muscles to tumors. They can also provide the chemical composition of the tissue being scanned.
  • ...1 more annotation...
  • Later the company developed the first FDA-approved, first mobile, and first whole-body MR scanners. FONAR's patented Iron Circuit™ technology has enabled the company to develop seven different MRI products including the recently cleared-for-marketing FONAR 360°, a full-size room with two circular structures (the poles of the magnet) projecting from the ceiling and the floor. There are no obstructions between the patient and the walls of the scanner room, and the patient is accessible from any direction. Damadian is also working on the Stand-Up MRI™, the only scanner that allows MRI patients to be scanned while standing up.
franklind2015

Video: Can I Eat That? | Watch NOVA scienceNOW Online | PBS Video - 0 views

video.pbs.org/2296861530

video nova

shared by franklind2015 on 03 Jun 14 - No Cached
  • franklind2015 on 03 Jun 14
     
    Brining turkey in salt water allows more water to to go into the turkey by osmosis which mean there will be more water left after cooking making it more juicy. Heat breaks up bonds in the proteins of muscle(meat) the amino acids react with sugars to form molecules that give the meat flavor and color. (Myard Reaction) Cutting onions cause reactions that create an aroma.
marthamck

colored pills - 0 views

apchemproject pharmindustry

shared by marthamck on 03 Jun 14 - No Cached
emiliamk

How do hydrogen peroxide rockets work? :: Peroxide Propulsion - 0 views

www.peroxidepropulsion.com/...5

shared by emiliamk on 11 Jun 14 - No Cached
    • emiliamk
      emiliamk on 11 Jun 14
       
      What is this catalyst?
  • water steam and oxygen.
  • 650 oC.
  • ...4 more annotations...
  • 1000 m/s
  • The simplest rocket is the monopropellant rocket. It works in the following way:
  • high pressure
  • Monopropellant rocket
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