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Covalent functionalization of single-walled carbon nanotubes alters their densities allowing electronic and other types of separation |
Hits: 55 |
Research areas: |
• Uncategorized |
Year: 2008 |
Type of Publication: Article |
• Woo-Jae Kim, Chang Young Lee Nitish Nair |
Journal: Journal of Physical Chemistry C Volume: 112 |
Number: 19 |
Month: MAY 15 2008 |
PT: J; TC: 32; UT: WOS:000255649500004 |
We show that covalently attached functional groups can alter the densities of individual single-walled carbon nanotubes (SWNTs) in a predictable and highly controllable manner. A volume-additivity model based on molecular group contributions can be used to estimate the density difference between 4-hydroxyphenyl-functio... |
Sunday, October 7, 2007 |
Wedding Saris |
Sarees were very much in fashion in a traditional Indian wedding. In today's wedding functions woman prefers to wear saris in different styles. Fashion designers have come up with new ways to drape wedding sarees, which are quite popular among today's woman. Saris always had a sensuous and elegant look at the same time... |
അഫ്ഗാര് (afgaar) said... |
very useful |
Eswari said... |
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Eswari said... |
Thank u for your information |
By south indian sarees |
, Volume 13, Issue 1, pp 145-155 |
368 Downloads 200 Citations 9 Comments |
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How do humans and animals travel between multiple destinations on a given foraging trip? This question is of theoretical and practical interest, yet few empirical data exist to date. We examined how a group of wild chacma baboons travelled among multiple, simultaneously fruiting mountain fig trees (Ficus glumosa). In t... |
Karen B. London |
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Wet Dog Shake |
The science behind the behavior |
I had always assumed that dogs shake vigorously after a bath or a swim in order to share massive quantities of water with all people in the immediate vicinity. That hypothesis fits in with my philosophical view that dogs have a generosity of spirit that knows no bounds and that they love us very much. It also matches m... |
A recent study takes a far more scientific approach to this behavior. Mammals that are wet suffer the risk of hypothermia, so water removal is a serious issue. Animals who remain wet can use 20 percent of their daily energy staying warm and generating the heat necessary for evaporation of that water. If an animal can q... |
In “Wet mammals shake at tuned frequencies to dry”, Andrew Dickerson, Zachary Mills, and David Hu enlighten us about the specifics of shaking. They studied the water removal affects of shaking behavior in animals ranging in size from mice to bears, and including dogs. |
These researchers observed mammals shaking themselves when wet and came to several conclusions. One is that there is a mathematical relationship between the size of the animal and the frequency with which they shake. The smaller an animal is, the more water they take on relative to body weight, and the faster they shak... |
Another conclusion of the researchers is that the ability of mammals to remove water relates to a property of their skin—its looseness. The amplitude of the shake is increased by loose skin. Though the rotation of the spinal column only reaches 30 degrees, the skin movement allows a total rotation of up to 90 degrees. ... |
If you’ve ever been near a wet dog shaking, it will come as no surprise at that dogs, as well as other mammals, can remove about 70 percent of the water from their fur with just a few seconds of shaking. The effectiveness of shaking behavior is extraordinary, though I must confess that I rarely appreciate it when I exp... |
photo by Clay Haskell/Flickr |
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Shahid revives guru Shiamak's NGO! |
By Hindustan Times |
Mumbai, Oct. 16 -- Known for his fine dance skills, Shahid Kapur has now decided to take his guru's legacy forward. The actor is all set to revive Victory Arts Foundation (VAF), a non-governmental organisation (NGO) founded by choreographer Shiamak Davar eight years ago. |
The foundation, which is currently inactive, used to conduct dance therapy classes for underprivileged children in Kamathipura, the red light area of the city. A source close to the actor reveals, "Shahid feels strongly about the hardships faced by these children on a daily basis. He believes that dance is a great way ... |
Shiamak, on his part, couldn't be happier. "When we started VAF, we made sure that all my students taught dance to these underprivileged children. Shahid |
By: Eric Giunta | Posted: March 22, 2012 3:55 AM |
Gary Siplin |
Sen. Oscar Braynon, D-Miami Gardens, Sen. Gary Siplin, D-Orlando, Sen. Chris Smith, D-Fort Lauderdale | Courtesy: Dave Heller |
The recent shooting death of 17-year-old Trayvon Martin by volunteer crime-watcher George Zimmerman in Seminole County has Florida Democrats in a furor, calling for a re-examination or repeal of the state’s controversial “Stand Your Ground” statute. |
“Given the overwhelming public concerns that have been raised ... I write to respectfully request that the Florida House of Representatives conduct hearings in this matter of community safety and human rights,” wrote House Minority Leader-designate Perry Thurston, D-Plantation, on Wednesday, in a letter to Speaker Dean... |
Rep. Mia Jones, R-Jacksonville, who chairs the Legislature’s Black Caucus, has gone even further: "For me, the right answer for 'Stand Your Ground' is to repeal it. ... I don't think this is a society that we want to live in,” she told a press conference on Tuesday. |
Are these the exaggerated hysterics of leftist Utopians driven to read humanitarian crises into every sign of human imperfection, or are there real flaws in Florida’s criminal statutes that merit legislative reformation? |
What happened? |
The precise details surrounding the circumstances of young Martin’s tragic death at the hands of Zimmerman have yet to be entirely fleshed out while investigations by both the Florida Department of Law Enforcement and the U.S. Department of Justice Civil Rights Division are still pending. Even so, a few facts are beyon... |
Trayvon Martin, a North Miami native, was watching basketball at his father’s home in Sanford the night of Feb. 26. During the halftime break, he walked to a gas station to pick up some candy and an iced tea. |
“This guy looks like he's up to no good or he's on drugs or something," Zimmerman told the dispatcher. "It's raining, and he's just walking around looking about.” (The neighborhood reportedly is a magnet for burglaries, at least a few of which Zimmerman had been instrumental in thwarting.) |
What happened next is uncertain: Martin and Zimmerman ended up wrestling on the ground (though it isn’t clear who initiated the physical altercation), cries of “Help!” were heard by witnesses (though it isn’t clear which of the two men made the shout), and the tussle concluded with Zimmerman killing Martin with a singl... |
Zimmerman has not been arrested, nor has he been charged with any crime. He insists that he killed Martin in self-defense, and has invoked Florida’s “Stand Your Ground” statute to claim immunity from having to go to trial for the homicide. |
What Is 'Stand Your Ground'? |
Before discussing the possible merits of Zimmerman’s defenses, it is important to understand just what legal protections he is claiming for himself. |
Zimmerman insists that his actions in this case constitute justifiable self-defense. In particular, he has invoked Section 776.013 of the Florida Statutes, subsection 3, popularly known as the “Stand Your Ground” statute: |
Section 776.032 of the Statutes further stipulates that anyone employing justifiable force in these circumstances is immune from any criminal prosecution or civil action for the use of such force, “unless the person against whom force was used is a law enforcement officer.” |
This statute has been in effect since 2005. Prior to that, Florida criminal law followed that of most other states: Victims of forcible felonies had a “duty to retreat” from their attackers if they could do so safely; the only time such a duty did not attach was when one was being attacked within one’s dwelling, reside... |
In our legal system, these phrases each carry specific meanings: |
• First, the person invoking the “Stand Your Ground” defense must do more than simply convince a jury that his belief in the necessity of employment of deadly force is honest and sincere. He must demonstrate, by a preponderance (i.e., greater weight) of evidence, that his belief was reasonable. In determining whether... |
• What exactly constitutes “great bodily harm” is a little ambiguous. Minor scratches and scars don’t qualify, but amputations and severe mutilations almost certainly do. The standard was articulated by the Florida Supreme Court in the 1974 case Owens v. State: “Great bodily harm defines itself and means great as dis... |
• Finally, Section 776.08 of the Florida Statutes defines “forcible felonies” as “any ... felony which involves the use or threat of physical force or violence against any individual.” |
Thus, in order for Zimmerman’s “Stand Your Ground” claim to prevail, he will need to convince a jury, by a preponderance of the evidence (a much lower standard than the famous “beyond a reasonable doubt”), that a reasonable person in his position would have believed that deadly force was necessary to defend himself aga... |
Will Zimmerman Prevail? |
There are too many details that remain unknown to the public, or whose publicity is contradictory, for us to presume to play the role of Zimmerman’s judge, jury, and executioner. But the facts that are emerging do not seem to bode well for the would-be crime fighter’s case. Martin was unarmed, 11 years Zimmerman’s juni... |
Finally, Martin’s girlfriend is publicly corroborating this scenario based on her phone conversation with Martin just seconds before Zimmerman approached. The credible picture she paints (consistent with the witness testimony and what we indisputably know to be Martin’s innocence) is of Martin defending himself against... |
More relevant for purposes of this analysis than Zimmerman’s legal culpability is the utter impropriety of Democratic politicians capitalizing on this non-representative tragedy in order to further advance a leftist agenda hostile to the human rights they claim to champion. |
“Stand Your Ground” is nothing other than the political realization of a man or a woman’s human right to defend their dignity against violent attackers. Imposing on victims a state-invented “duty” to make on-the-spot calculations of whether it is safe to retreat imposes on them a burden that instead ought to be borne b... |
Florida’s criminal statutes are certainly not above criticism. The original legislative sponsors of “Stand Your Ground,” former Sen. Durell Peaden, R-Crestview, and current Rep. Dennis Baxley, R-Ocala, have vehemently insisted that their statute was never intended to apply to cases such as Zimmerman’s, and we’re inclin... |
Comments (76) |
1:02PM MAY 18TH 2012 |
So let's analyze this article. It's entitled a legal analysis but in one of the penultimate paragraphs, you write "More relevant for purposes of this analysis than Zimmerman’s legal culpability is the utter impropriety of Democratic politicians capitalizing on this..." So, in essence, it is in no way a legal analysis. ... |
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