Monthly Archives: April 2014

9) Dr.Rasheed 03/04/2013 [DNA : DNA structures]
DNA : - DNA structures.

By: Forsan El Kasr

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9) Dr.Rasheed 03/04/2013 [DNA : DNA structures] - Video

Dr.Abbas 10 [DNA : Free nucleotides,1ry 2ry structure of DNA]
DNA : - Guanine , Sytosine Uracil free nucleotides - Primary secondary structure of DNA.

By: Forsan El Kasr

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Dr.Abbas 10 [DNA : Free nucleotides,1ry & 2ry structure of DNA] - Video

Dr.Abbas 14 [DNA : Replication in eukaryotes, Telomere Telomerase]
DNA : - Replication in eukaryotes - Telomere Telomerase.

By: Forsan El Kasr

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Dr.Abbas 14 [DNA : Replication in eukaryotes, Telomere & Telomerase] - Video

10) Dr.Rasheed 06/04/2013 [DNA : Types of RNA]
Types of RNA.

By: Forsan El Kasr

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10) Dr.Rasheed 06/04/2013 [DNA : Types of RNA] - Video

The Enigma of an American Icon - DNA of The Ford Mustang
Mustang design team member Jerome Malinowski gives a lecture on the history of the original Mustang at the University of Louisiana Lafayette. http://www.loui...

By: MyRide on Autobytel

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The Enigma of an American Icon - DNA of The Ford Mustang - Video

gorjul, tinta dna

By: tvsudro

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gorjul, tinta dna - Video

11) Dr.Rasheed 08/04/2014 [DNA : Packing of DNA]
DNA : - Packing of DNA.

By: Forsan El Kasr

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11) Dr.Rasheed 08/04/2014 [DNA : Packing of DNA] - Video

Dr.Abbas 15 [DNA Repair - Transcription]
DNA Repair - Transcription.

By: Forsan El Kasr

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Dr.Abbas 15 [DNA Repair - Transcription] - Video

BY RUMMANA HUSSAIN Criminal Courts Reporter April 11, 2014 2:24PM

Anthony Wells, 19, is charged with murder in the August 2010 slaying of Osho Mobolaji in the 2000 block of East 71st Street. He already is in jail facing murder charges in an unrelated incident. | Provided

storyidforme: 64843375 tmspicid: 23218815 fileheaderid: 11309318

Updated: April 11, 2014 11:41PM

DNA evidence recovered from a bandanna that a purported gang member was wearing and dropped after he shot and killed a 64-year-old man four years ago helped lead to his arrest on murder charges this week, Cook County prosecutors said Friday.

Anthony Wells, who is already in jail awaiting trial in connection with another murder, had been covering his mouth and nose with a black and white bandanna when he opened fire in the 2000 block of East 71st Street and hit Osho Mobolaji on Aug. 13, 2010, Assistant States Attorney Dan Griffin said.

As he fled, Wells bandanna fell to the ground and was recovered by police, who sent it to the Illinois State Police forensic lab, Griffin said.

Wells was also identified by a witness in a lineup earlier this week, Griffin said.

Wells, of the 7100 block of Jeffrey Boulevard, was ordered held in lieu of $2 million bail Friday.

Wells is currently in jail for his alleged role in a September 2013 murder that took place in the same area where Mobolaji was gunned down.

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DNA from bandana links man to killing, prosecutors say

Image Caption: A DNA strand damaged by toxic nanoparticles. Credit: Illustration by Christine Daniloff/MIT

redOrbit Staff & Wire Reports Your Universe Online

Some nanoparticles commonly added to thousands of consumer products can significantly damage DNA, according to a new study by researchers at MIT and the Harvard School of Public Health (HSPH).

These products, which include cosmetics, sunscreens, clothing and other common items, contain nanoparticles added by manufacturers to, among other things, improve texture, kill microbes, or enhance shelf life.

But the current study suggests these tiny particles can be toxic to cells.

For instance, the researchers found that zinc oxide nanoparticles, often used in sunscreen to block ultraviolet rays, significantly damages DNA. Nanoscale silver, which has been added to toys, toothpaste, clothing, and other products for its antimicrobial properties, also produces extensive DNA damage.

The US Food and Drug Administration (FDA) does not require manufacturers to test nanoscale additives for a given material if the bulk material has already been shown to be safe. However, there is evidence that the nanoparticle form of some of these materials may not be safe due to their extremely small size and differences in physical, chemical, and biological properties. They can also penetrate cells more easily.

The problem is that if a nanoparticle is made out of something thats deemed a safe material, its typically considered safe. There are people out there who are concerned, but its a tough battle because once these things go into production, its very hard to undo, said Bevin Engelward, professor of biological engineering at MIT and lead researcher of the current study.

Engleward and associate professor Philip Demokritou, director of HSPHs Center for Nanotechnology and Nanotoxicology, used a high-speed screening technology to analyze the DNA damage caused by nanoparticles, allowing them to study the potential hazards at a much faster rate and larger scale than previously possible.

The researchers focused on five types of engineered nanoparticles silver, zinc oxide, iron oxide, cerium oxide, and silicon dioxide (also known as amorphous silica) that are used industrially. Some of these nanomaterials can produce free radicals called reactive oxygen species, which can alter DNA. Furthermore, once these particles get into the body, they may accumulate in tissues, causing even more damage.

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Many Common Household Products Contain DNA-Damaging Nanoparticles: Study