Source: http://news.feedzilla.com/en_us/stories/politics/top-stories/316483230?client_source=feed&format=rss
eddie murphy Stephanie Bongiovi stanford football guy fieri Jill Kelley hope solo hope solo
Wednesday, July 3, 2013
Tuesday, July 2, 2013
98% A Hijacking
All Critics (60) | Top Critics (17) | Fresh (59) | Rotten (1)
To refuse to call A Hijacking a thriller is not to say it isn't thrilling, in a dryly cerebral way.
It's the second feature from the young writer-director Tobias Lindholm, and it showcases his gift for tightly focused stories told without an ounce of fat.
Lindholm doesn't present the film as a procedural for hostage negotiations because he knows too well that there are too many movable parts, too many things that can go wrong.
Methodical and tense ... has the feel of something based on real-life events ... boils down to an arresting portrait of two men, with different backgrounds and abilities, doing everything they can not to break.
We're impatient for action, any kind of action - but preferably the sort that involves a team of Navy SEALs, maybe led by Dwayne Johnson. Instead, we get something like a merger meeting.
Hand-held camerawork, so often a confounded nuisance, here makes the conditions on board the Rozen feel nauseatingly urgent.
A nail-biter of the highest order, A Hijacking is astonishingly emotional, gritty, and terrifying -- a genuine directorial achievement that should not be missed.
When the gut-wrenching conclusion of A Hijacking comes in the form of a single, random act, it's only then you realize how far you've been pulled into its emotional core.
A Hijacking delivers all the thrills the title suggests, but in none of the places you'd expect them.
The danger never reaches the level of chaos, but the subtext and metaphor in the slow-moving humanistic commentary on the motivations and byproducts of capitalism make for an intriguing film.
A smart movie derived out of the small moments that collectively comprise the hostage experience, rather than grandiose gestures.
Lindholm's you-are-there docudrama works as a tense thriller, but themes of negotiation and the ability to empathize provide a rich subtext.
...slow, mostly talk, but tense and realistic...
The level of suspense in this riveting Danish thriller doesn't build in sweeping melodramatic fashion, but rather at a low-key simmer that emphasizes authentic character dynamics.
A Hijacking accomplishes a tricky task, generating tension through talk rather than action.
This absorbing chronicle of a hijacking in the Indian Ocean has the strengths of the best procedural dramas -- it assumes a distanced and objective tone and packs an emotional wallop.
Moment by moment we find ourselves wondering what will happen next...
Auteur Tobias Lindholm does a striking job in grabbing your attention and running with it as he succinctly tells the story of "A Hijacking."
A Hijacking is an absorbing, highly moving film that's lingered heavily on the mind for a couple of days now.
No quotes approved yet for A Hijacking. Logged in users can submit quotes.
Curious mix of precision and brawn in a pouched super-predator
July 1, 2013 ? A bizarre, pouched super-predator that terrorised South America millions of years ago had huge sabre-like teeth but its bite was weaker than that of a domestic cat, new research shows.
Australian and American marsupials are among the closest living relatives of the extinct Thylacosmilus atrox, which had tooth roots extending rearwards almost into its small braincase.
"Thylacosmilus looked and behaved like nothing alive today," says UNSW palaeontologist, Dr Stephen Wroe, leader of the research team.
"To achieve a kill the animal must have secured and immobilised large prey using its extremely powerful forearms, before inserting the sabre-teeth into the windpipe or major arteries of the neck -- a mix of brute force and delicate precision."
The iconic North American sabre-toothed 'tiger', Smilodon fatalis, is often regarded as the archetypal mammalian super-predator.
However, Smilodon -- a true cat -- was just the end point in one of at least five independent 'experiments' in sabre-tooth evolution through the Age of Mammals, which spanned some 65 million years.
Thylacosmilus atrox is the best preserved species of one of these evolutionary lines -- pouched sabre-tooths that terrorised South America until around 3.5 million years ago.
For its size, its huge canine teeth were larger than those of any other known sabre-tooth.
Smilodon's killing behaviour has long attracted controversy, but scientists now mostly agree that powerful neck muscles, as well as jaw muscles, played an important role in driving the sabre-teeth into the necks of large prey.
Little was known about the predatory behaviour in the pouched Thylacosmilus.
To shed light on this super-predator mystery, Dr Wroe's team of Australian and US scientists constructed and compared sophisticated computer models of Smilodon and Thylacosmilus, as well as a living conical-toothed cat, the leopard.
These models were digitally 'crash-tested' in simulations of biting and killing behaviour. The results are published in the journal PLoS ONE.
"We found that both sabre-tooth species were similar in possessing weak jaw-muscle-driven bites compared to the leopard, but the mechanical performance of the sabre-tooths skulls showed that they were both well-adapted to resist forces generated by very powerful neck muscles," says Dr Wroe.
"But compared to the placental Smilodon, Thylacosmilus was even more extreme."
"Frankly, the jaw muscles of Thylacosmilus were embarrassing. With its jaws wide open this 80-100 kg 'super-predator' had a bite less powerful than a domestic cat. On the other hand -- its skull easily outperformed that of the placental Smilodon in response to strong forces from hypothetical neck muscles."
"Bottom line is that the huge sabres of Thylacosmilus were driven home by the neck muscles alone and -- because the sabre-teeth were actually quite fragile -- this must have been achieved with surprising precision."
"For Thylacosmilus -- and other sabre-tooths -- it was all about a quick kill."
"Big prey are dangerous -- even to super-predators -- and the faster the kill the less likely it is that the predator will get hurt -- or for that matter attract unwanted attention from other predators."
"It may not have been the smartest of mammalian super-predators -- but in terms of specialisation -- Thylacosmilus took the already extreme sabre-tooth lifestyle to a whole new level," says Dr Wroe.
Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/top_science/~3/JuCU5sFeKBA/130701100804.htm
jason varitek andrew breitbart dead sheriff joe arpaio limbaugh aaron smith wilt chamberlain joe arpaio
Solving electron transfer
![[ Back to EurekAlert! ]](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_vJfHbrbuuASK6WV8uR0eS-xF4LM1sOV3pocp6DSMg_X35Qc7jnm6lPmXUthgCX4S-bqabuljN123YX0y3n_t51GSgYmmwORk1_IyFtllQ=s0-d){kind=small}
Public release date: 2-Jul-2013[ | E-mail |
Share ] Contact: Nik Papageorgiou
n.papageorgiou@epfl.ch
41-216-933-2105
Ecole Polytechnique Fdrale de Lausanne
Electron transfer is a process by which an atom donates an electron to another atom. It is the foundation of all chemical reactions, and is of intense research because of the implications it has for chemistry and biology. When two molecules interact, electron transfer takes place in a few quadrillionths (10-15) of a second, or femtoseconds (fsec), meaning that studying this event requires very time-sensitive techniques like ultrafast spectroscopy. However, the transfer itself is often influenced by the solution in which the molecules are studied (e.g. water), and this must be taken into account when such experiments are designed. In a recent Nature Communications paper, EPFL scientists have visualized for the first time how electron transfer takes place in one of the most common solvents, water.
For over twenty years, scientists have been trying to understand how an electron departs from an atom or molecule, travels through space in a solvent, and finally connects to an acceptor atom or molecule. Until now, experimental efforts have not borne much fruit, mostly because of the extremely short time periods involved in electron transfer. The problem is further complicated when we consider that the molecules of the commonest reaction solvent, water, are polar, which means that they respond to electron movement by influencing it. Understanding the real-time impact of the solvent is crucial, because it directly affects the outcome and efficiency of electron-transfer chemical reactions.
Majed Chergui's group at EPFL's Laboratory of Ultrafast Spectroscopy (LSU) employed a world-unique setup in their lab to observe the evolution of electron movement with unprecedented time-resolution. The scientists excited iodide in water with ultraviolet light, causing the ejection of an electron from the iodine atom. Using a technique called ultrafast fluorescence spectroscopy they observed the departure of the electron over different times between 60 fsec and 450 fsec. Previous research has always been limited between 200 fsec 300 fsec because once the electron exits, other processes take place that shade the longer periods of time and shorter timepoints have been inaccessible.
The experiment showed that the departure of the electron depends very much on the configuration of the solvent cage around the iodide. In chemistry, a 'solvent cage' refers to the way a solvent's molecules configure around an atom or molecule and 'try to hold it in place'. What the EPFL researchers found was that the polarized water molecules held the excited electron in place for a time, causing some structural re-arrangement of the solvent (water) in the process, while the driving force for electron ejection into the solvent is being reduced. Ultimately, the solvent cage does not prevent electrons from departing, but it slows down their departure stretching their residence time around iodine up to 450 fsec.
The breakthrough study shows how strongly the configuration and re-arrangement of the solvent affects electron departure. "It's not enough to consider only the donor and acceptor of the electron now you have to consider the solvent in between", says Majed Chergui. "If you are thinking about driving molecules by light into electron transfer processes, this is in a way telling the community 'watch out, don't neglect the solvent it is a key partner in the game, and the re-arrangement of the solvent is going to determine how efficient your reaction will be.'"
###
[ | E-mail | Share ] ?
AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.
Public release date: 2-Jul-2013[ | E-mail |
Share ] Contact: Nik Papageorgiou
n.papageorgiou@epfl.ch
41-216-933-2105
Ecole Polytechnique Fdrale de Lausanne
Electron transfer is a process by which an atom donates an electron to another atom. It is the foundation of all chemical reactions, and is of intense research because of the implications it has for chemistry and biology. When two molecules interact, electron transfer takes place in a few quadrillionths (10-15) of a second, or femtoseconds (fsec), meaning that studying this event requires very time-sensitive techniques like ultrafast spectroscopy. However, the transfer itself is often influenced by the solution in which the molecules are studied (e.g. water), and this must be taken into account when such experiments are designed. In a recent Nature Communications paper, EPFL scientists have visualized for the first time how electron transfer takes place in one of the most common solvents, water.
For over twenty years, scientists have been trying to understand how an electron departs from an atom or molecule, travels through space in a solvent, and finally connects to an acceptor atom or molecule. Until now, experimental efforts have not borne much fruit, mostly because of the extremely short time periods involved in electron transfer. The problem is further complicated when we consider that the molecules of the commonest reaction solvent, water, are polar, which means that they respond to electron movement by influencing it. Understanding the real-time impact of the solvent is crucial, because it directly affects the outcome and efficiency of electron-transfer chemical reactions.
Majed Chergui's group at EPFL's Laboratory of Ultrafast Spectroscopy (LSU) employed a world-unique setup in their lab to observe the evolution of electron movement with unprecedented time-resolution. The scientists excited iodide in water with ultraviolet light, causing the ejection of an electron from the iodine atom. Using a technique called ultrafast fluorescence spectroscopy they observed the departure of the electron over different times between 60 fsec and 450 fsec. Previous research has always been limited between 200 fsec 300 fsec because once the electron exits, other processes take place that shade the longer periods of time and shorter timepoints have been inaccessible.
The experiment showed that the departure of the electron depends very much on the configuration of the solvent cage around the iodide. In chemistry, a 'solvent cage' refers to the way a solvent's molecules configure around an atom or molecule and 'try to hold it in place'. What the EPFL researchers found was that the polarized water molecules held the excited electron in place for a time, causing some structural re-arrangement of the solvent (water) in the process, while the driving force for electron ejection into the solvent is being reduced. Ultimately, the solvent cage does not prevent electrons from departing, but it slows down their departure stretching their residence time around iodine up to 450 fsec.
The breakthrough study shows how strongly the configuration and re-arrangement of the solvent affects electron departure. "It's not enough to consider only the donor and acceptor of the electron now you have to consider the solvent in between", says Majed Chergui. "If you are thinking about driving molecules by light into electron transfer processes, this is in a way telling the community 'watch out, don't neglect the solvent it is a key partner in the game, and the re-arrangement of the solvent is going to determine how efficient your reaction will be.'"
###
[ | E-mail | Share ] ?
AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.
Source: http://www.eurekalert.org/pub_releases/2013-07/epfd-set070113.php
free ecards flying car masters golf tournament the replacements how to hard boil eggs new nfl uniforms derbyshire
A Russian Rocket Just Exploded Over Kazakhstan as It Launched
A Russian rocket just crashed seconds after it was launched from a spaceport in Kazakhstan. Footage from local news channels shows how the rocket wobbled through the sky as it rose into the air, before disintegrating and falling back to Earth.
     |
Firefox Got A New Logo ? But Can You Tell The ... - Business Insider
People are talking about Mozilla's newly announced Firefox OS phones ? but did anyone notice that the browser changed its logo four days ago?
Here are the two logos side-by-side:
Firefox
Pretty similar, huh?
Even though the overall concept is the same, the new logo is the image to the?right. And its evolution was an eight-part process.
Designer Sean Martell went into great detail of the changes in his blog.?Mostly, the logo will look better at smaller sizes.
And Martell has been making extremely subtle updates (that you probably didn't notice) for years.
Here's a breakdown of everything that changed in the new logo:
Source: http://www.businessinsider.com/firefox-got-a-new-logo--but-can-you-tell-the-difference-2013-7
Subscribe to:
Posts (Atom)