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Karan J

Beware The Engineered Salmon | Ethan Bearman's Blog - 0 views

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    this is not a very good blog post. It doesn't provide any evidence or argument to support the viewpoint.
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    I posted another blog
Emma Chowdhury

Forensic News Blog: Controversial DNA Testing Kits hitting high street this week. - 1 views

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    DIY kits to find out the possibility of you getting cancer, diabetes, or Alzheimer's. The person who writes the blog is against these kits being sold because they make people wrongly believe they might get that disease. 
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    very interesting...i for one don't think i want to know my chances of getting these diseases. nor do i think they would be that accurate given the environmental influences of some diseases.
Shweta Khorana

Forensic Blog » Blog Archive » Former Ohio Police Captain Exonerated After 15... - 0 views

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    not the right one, I got a better one that shows opinion more clearly
Kareena M

Forensic News Blog - 3 views

  • In 2012, readers searching for forensic science content now have many more ways to find
  • "The body chemistry of the person who left the fingerprint can tell us some things," said Shaler. "If the suspect is older or younger or a lactating mother, for example."The researchers used a form of physical vapor deposition -- a method that uses a vacuum and allows vaporized materials to condense on a surface creating a thin film. Normally, the deposition process requires exceptionally clean surfaces because any speck of dust or grease on the coated surface shows up as a deformity. However, with fingerprints, the point is to have the surface material's ridges and valleys -- topography -- show up on the new surface so analysts can read them using an optical device without the necessity of chemical development or microscopy."This approach allows us to look at the topography better and to look at the chemistry later," said Shaler. "We wouldn't have thought of this by ourselves, but we could do it together."One benefit of this approach would be the ability to retrieve fingerprints off fragments from incendiary or explosive devices and still be able to analyze the chemicals used in the device.The specific method used is a conformal-evaporated-film-by-rotation technique developed to create highly accurate copies of biological templates such as insect eyes or butterfly wings. Both are surfaces that have nanoscale variations."It is a very simple process," said Lakhtakia. "And fingerprints are not nanoscale objects, so the conformal coating is applied to something big by nanotechnology standards."
  • Investigators have found new DNA evidence in the murder of Peggy Hettrick, a case that was considered closed until genetic evidence freed a man who spent 10 years in prison, according to Colorado Attorney General John Suthers.The "touch DNA" tests weren't available in the late 1990s. Timothy Masters was convicted of murder in Hettrick's death in 1999, but his conviction was overturned in 2008 after defense lawyers used advanced DNA testing to uncover evidence suggesting a different suspect.The new evidence was taken from Hettrick's clothing. "We have done 'touch DNA,' and I think it has moved the ball forward. We will know more in the future," Suthers said. He wouldn't say whose DNA was found or identify the clothing on which it was found.Masters has not been exonerated in the case and remains a suspect."While we are not in a position to exonerate Tim at this time, I emphasize that he is presumed innocent and is no more a suspect than a variety of other people," Suthers said.
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  • It's already difficult to obtain good fingerprints at a crime scene. In most cases, mostly partials will be found. In cases where there was some type of explosion or fire, other methods like this chemical method could be very helpful not just in recovering the print but also to find out some information on who the suspect could be.
  • relevant material.  Organized blogs devoted to forensic science have appeared that post both links and original content.  Organizations have twitter accounts and Facebook pages that make reaching readers much easier than in RSS days.
  • As you may know, your skin has "normal flora" bacteria living on it. This bacteria is beneficial to your health, but may also be used to identify you, according to emerging research. Scientists at the University of Colorado at Boulder are developing a method to identify individuals based on the unique bacteria found on their hands. When the amount of human DNA is too small to detect, bacterial DNA could be used in its place. Bacteria can be collected directly from hands or even touched surfaces and the DNA can be sequenced just like human DNA. The scientists found that very few bacteria were shared among test subjects. Even identical twins have different colonies of bacteria on their hands! Bacteria remain on our hands no matter how many times we wash them, so why not use them?
  • ..."Each one of us leaves a unique trail of bugs behind as we travel through our daily lives," said Fierer, an assistant professor in CU-Boulder's ecology and evolutionary biology department.....unless there is blood, tissue, semen or saliva on an object, it's often difficult to obtain sufficient human DNA for forensic identification, said Fierer. But given the abundance of bacterial cells on the skin surface, it may be easier to recover bacterial DNA than human DNA from touched surfaces, they said. "Our technique could provide another independent line of evidence."...The new technique would even be useful for identifying objects touched by identical twins, since they share identical DNA but they have different bacterial communities on their hands.
  • "On Wednesday, Human Rights Watch released a report showing that since 1995, only about 20 percent of rape kits, which contain physical evidence obtained from victims, could be confirmed as having been tested in Illinois. More than 4,000 kits had gone untested, the report found."
  • Law-enforcement experts said iPhone technology records a wealth of information that can be tapped more easily than BlackBerry and Droid devices to help police learn where you've been, what you were doing there and whether you've got something to hide.
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    okay but which exact post do you want me to read?
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    "New DNA Evidence May Exonerate Convicted Murderer"
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    not a very strong, relevant post
Aditi V.

Media #3 - 1 views

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    not exactly sure this is an oped or a blog
Simran Sabharwal

California Stem Cell Blog - 2 views

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    Your tags are incomplete "stem cells" is one tag. Also tag with your name and the media type! I am not sure this is a very good post...you may want to find another one that's simpler to understand and actually talks about the issue. This postis just critiquing the report. If there is a SPECIFIC post that you want me to read, please put the title of that post.
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    still not clear which post you want me to read. should have used the highlighter.
Eva K

Brazil Plans to Clone Its Endangered Species | Extinction Countdown, Scientific America... - 0 views

  • Brazil Plans to Clone Its Endangered Species
  • The scientists have already spent the past two years collecting 420 genetic samples for the species—mostly from dead specimens found in the Cerrado savanna region—and are now waiting for legal authorization to start the cloning.
  • If they receive government approval, the species they’ll be working with would include the maned wolf (Chrysocyon brachyurus); jaguar (Panthera onca); black lion tamarin (Leontopithecus chrysopygus); bush dog (Speothos venaticus); Brazilian aardvark, also known locally as coati (Nasua nasua); collared anteater (Tamandua tetradactyla); gray brocket deer (Mazama gouazoubira); and bison (Bison bison).
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  • If the Brazilian cloning effort is successful, the animals would all be carbon copies of each other and therefore not useful for maintaining genetically varied populations—such diversity is key to a population’s resilience in the face of various diseases and predatory threats. Instead, the cloned animals would live at the zoological garden.
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    check tags
Aditi V.

Nature vs nurture - a neurological insight « Medicine « Cambridge Journals Blog - 0 views

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    check you tags. What media type is this?
Shweta Khorana

Forensic Blog - 1 views

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    which post do you want me to check?
Alisa H

On nature versus nature: The neuroscientist knee-deep in diapers - 0 views

  • I am a neuroscientist and I am the father of two-year old triplets—two identical and one fraternal. As a professor at Yale University, I spend most of my time designing experiments, researching or teaching about the brain and the nervous system. The rest of my time I spend surrounded by my three daughters. To understand the dynamics in my household, think terrible-two’s, and then cube it.
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    good blog
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    This is about a father and his perspective on Genetics, and he is also talking about that he has 3 triplets and 2 of them are look exactly alike.
Avantika B

Our Turn: Does cloning animals go against nature? | MLive.com - 1 views

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    I like this blog post! Check whether it meets the date requirements in your rubric
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    Sadly no its in 2009
Connor L

Nature or nurture? - The Boston Globe - 2 views

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    Nature or nurture???
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    This is not a blog nor a science article, this is just a normal article.
Shweta Khorana

Guest Blogger: Karl M McDonald: DNA Testing Methods, Part 2 « The Writer's Fo... - 0 views

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    This is a good article which shows the writer's opinion on many topics in the Forensic DNA field such as "Is Mitochondrial DNA useless?"
Sejin C

RealClearScience - Why Cloned Animals Aren't Identical - 0 views

  • Cloned animals are normally considered to be more alike than those that are conceived naturally
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    This is not a blog. Just information.
Aditi V.

Media #1 - 0 views

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    ok
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