The most comprehensive way to evaluate DNA concentration and purity is to use both UV spectrophotometeric measurements and agarose gel eletrophoresis. This quick reference guide gives an overview of the information that can be derived from both.
This article is a clear and concise guide to th... Read More
You are going to spend at least 4 years or more in graduate school, and around 3-5 years in a postdoc position. That’s a big chunk of your life, so apart from doing experiments, writing papers or your thesis and maybe doing some teaching, what else are you doing?
To paraphrase one of my favor... Read More
How’s this for irony – the U.S. Food and Drug Administration is warning consumers to stop using two brands of hand sanitizers because they contain … dangerous bacteria.
That’s right. “Bee-Shield Hand Sanitizer” and “MD Quality Hand Sanitizer” (both made with aloe vera) were found to have high... Read More
Vincent and Dick discuss the nurse cell, a unique structure formed in the host muscle by Trichinella species.
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Welcome to Ms. Baker and her biology students extreme biology blog! This is perhaps one of the best high school student blogs I have ever seen.
In Extreme Biology, students post about "anything biology-related." Check out the post by Amy Ciardiello, a 9th grade violinist, who writes about "v... Read More
As climatologists weather the IPCC controversy, another storm is brewing, and this one is filled with not with bloggers but with beasts, bugs and bacteria. It is the potential plague of infectious diseases—threatened to be made worse, many scientists propose, by projected changes in the Earth's ... Read More
Understanding how plants defend themselves from bacterial infections may help researchers understand how people and other animals could be better protected from such pathogens.
That’s the idea behind a study to observe a specific bacteria that infects tomatoes but normally does not bother the... Read More
Titulares: vigilancia universal del MRSA, el poder del Shitake, transmisión de Clostridium difficile, y bacterias en las lentes de contacto.
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Currently, beachgoers are informed about water-quality conditions based on results from the previous day's sample. Scientists must collect samples in the field, then return to a lab to culture them for analysis — a process that takes a minimum of 24 hours.
Now, engineers from the UCLA Henry ... Read More
A new study by a former U.S. Food and Drug Administration (FDA) economist estimates the total economic impact of foodborne illness across the nation to be a combined $152 billion annually.
The Produce Safety Project, an initiative of The Pew Charitable Trusts at Georgetown University, publish... Read More
Idaho National Laboratory biologist Frank Roberto squats on a gravelly patch of ground in Yellowstone National Park. At his feet, scalding water churns in a mustard-yellow pool the size of a wheelbarrow. Roberto reaches in with a plastic vial and scoops up a half-cup.
“That’s a good sample,” ... Read More
Scientists in Manchester, UK have found a clean and green way of making tiny magnets for high tech gadgets—using natural bacteria that have been around for millions of years. The work by a team of geomicrobiologists from the Univ. of Manchester paves the way for nanometer-size magnets – used in ... Read More
Scientists in the US have developed a microdevice that investigates how bacteria communicate with each other to enhance their resistance to drugs.
Bacteria communicate in a process called quorum sensing, in which they secrete small signalling molecules called autoinducers. When bacteria pr... Read More
Nominations are being accepted online now through June 30, 2010, 5:00 p.m. EST, at http://www.pahef.org/awards/nominations for four of the 2010 Awards for Excellence in Inter-American Public Health, a joint program of the Pan American Health and Education Foundation (PAHEF) and the Pan American ... Read More
Women older than 40 are unlikely to get much benefit from the vaccine for the virus that causes cervical cancer, a new study reports.
The vaccine for human papillomavirus, or HPV, is recommended for women up to age 26 and girls as young as 9. To determine whether older women might be protect... Read More
Illustration of Toxoplasma gondii-extraintestinal cycle in cells of mammals Read More
With help from scientists from Stanford University’s medical school, North Korea has developed its first laboratory capable of detecting drug-resistant tuberculosis, scientists involved in the project said last week.
Tuberculosis surged in the Democratic People’s Republic of Korea during the... Read More
Numerous studies have debunked the theory that childhood vaccines cause autism, and autism researchers are now, for the most part, focusing on other potential causes of the disorder. But one in five parents still believe that vaccines may cause autism, according to a study released online Sunday... Read More