Category Archives: News

Atoms star in ‘world’s smallest movie’ – BBC

[http://www.bbc.co.uk/news/science-environment-22358861]

1 May 2013 Last updated at 09:42

A film using single atoms to animate a boy playing with a ball, dancing, and bouncing on a trampoline, has become the world’s smallest stop-motion movie.

The 90-second film, made by IBM, is so small it can only be seen when magnified 100 million times.

The ability to move single atoms is vital for research into data storage at the atomic level – something researchers say could increase the amount of information storable on a device by tens of thousands of times.

Video courtesy of IBM research

http://www.bbc.co.uk/news/science-environment-22358861

http://www.youtube.com/watch?v=CfjWNFwP-HA

Impact factor 2011, selected Journals

Abbreviated Journal Title (linked to journal information)

Total Cites

Impact Factor

5-Year Impactor Factor

Immediacy Index

Articles

REV MOD PHYS

31368

43.933

44.436

10.026

38

LANCET

158906

38.278

33.797

10.576

276

ADV PHYS

4400

37

25.289

3.778

9

NATURE

526505

36.28

36.235

9.69

841

NAT MATER

39242

32.841

36.732

6.246

134

NAT PHOTONICS

10259

29.278

30.773

5.031

96

NAT NANOTECHNOL

16581

27.27

33.781

5.496

117

NAT CHEM

5260

20.524

20.533

5.308

120

PHYS REP

18742

20.394

20.574

4.6

35

NAT METHODS

15269

19.276

20.454

5.133

128

NAT PHYS

14228

18.967

18.557

5.767

163

MAT SCI ENG R

4487

14.951

16.5

1.75

12

ADV MATER

79860

13.877

12.813

2.155

789

NANO LETT

75287

13.198

13.843

2.082

955

ACS NANO

22409

10.774

11.171

1.631

1141

ADV FUNCT MATER

28503

10.179

9.92

1.514

533

LASER PHYS LETT

4670

9.97

5.927

2.062

145

J AM CHEM SOC

408307

9.907

9.766

1.865

3176

NAT COMMUN

1859

7.396

7.396

1.659

451

LASER PHOTONICS REV

1188

7.388

8.772

2.6

40

PHYS REV LETT

335444

7.37

7.013

2.147

3229

NANO RES

2017

6.97

7.461

0.918

122

NANOMED-NANOTECHNOL

2091

6.692

 

0.8

110

J PHYS CHEM LETT

4695

6.213

6.217

1.405

529

NANOSCALE

3187

5.914

5.914

1.187

653

LAB CHIP

13729

5.67

6.497

1.143

538

PHYS TODAY

3527

5.648

4.356

1.868

38

MATER TODAY

3452

5.565

10.451

0.482

56

NANOMEDICINE-UK

2103

5.055

6.534

0.87

108

PHYS REV D

120339

4.558

4.027

1.738

2974

NANOTECHNOLOGY

31600

3.979

4.017

0.665

1128

PHYS LETT B

54511

3.955

3.501

2.197

1010

APPL PHYS LETT

203336

3.844

3.787

0.661

4419

PHYS REV B

278680

3.691

3.405

0.889

6121

LASER PHYS

4085

3.605

2.202

0.565

421

OPT EXPRESS

54094

3.587

3.666

0.743

2982

ADV CHEM PHYS

2260

3.579

3.103

   

PHYS CHEM CHEM PHYS

31819

3.573

3.931

0.91

2314

OPT LETT

45759

3.399

3.387

0.716

1603

J CHEM PHYS

182373

3.333

3.238

0.835

2637

PHYS REV C

34983

3.308

3.068

0.976

1084

COMPUT PHYS COMMUN

9287

3.268

2.812

0.673

361

PHYS THER

7427

3.113

3.517

1.053

133

APPL PHYS EXPRESS

3256

3.013

2.944

0.56

418

PHYS REV A

86163

2.878

2.612

0.84

2723

J MECH PHYS SOLIDS

9562

2.806

3.522

0.843

140

P JPN ACAD B-PHYS

688

2.77

1.934

0.279

43

NANOSCALE RES LETT

2447

2.726

2.928

0.443

625

J PHYS D APPL PHYS

25779

2.544

2.404

0.501

874

IEEE PHOTONICS J

409

2.32

2.32

0.567

120

MATER LETT

20548

2.307

2.275

0.421

1048

IEEE T NANOTECHNOL

1851

2.292

2.139

0.304

207

PHYS REV E

68373

2.255

2.261

0.474

2508

IEEE PHOTONIC TECH L

13572

2.191

1.86

0.414

611

J OPT SOC AM B

11210

2.185

2.097

0.561

424

J APPL PHYS

124863

2.168

2.169

0.369

4361

APPL OPTICS

34118

1.748

1.789

0.415

1059

PHYSICA C

7132

1.014

0.737

0.121

363

 

Academia or Industry? Finding the Right Fit

Academia or Industry? Finding the Right Fit

By Elisabeth Pain

May 22, 2009, Science Careers.

In the early days of his chemistry training at the Pierre and Marie Curie University in Paris, French chemist Christophe Eychenne expected to spend his scientific career in academia. “I really [wanted] to go deeply [into] some scientific topic,” Eychenne says. But soon after, he realized it was also important for him to see his research applied to real life. He found a niche for himself at the chemical company Rhodia, near Paris, soon after earning his Ph.D. He worked on nanomaterial chemistry projects that could lead to new additives for “toothpaste or car-tire applications” down the line, he says.

Industry is not a good fit for everyone; corporate mandates affect both what and how research is done. But “don’t go for cliché answers. … There is no such thing as research in academia and research in industry,” says Martin Ebeling, head of the computational biology group at pharma giant Hoffmann-La Roche in Basel, Switzerland. Rather, job seekers need to view the employment marketplace as an array of specific opportunities, each with its own characteristics. “Look at it open-minded and without any prejudice,” he says. “There will be good and bad positions offered in both academia and industry.”

Research under the industry lens

Christophe Eychenne
(Courtesy, Christophe Eychenne)

Christophe Eychenne

When young scientists “first start becoming acquainted with what it means to do research in the private sector, it’s really quite a culture shock,” says Michael A. Santoro, a business ethics professor at Rutgers Business School in New Jersey. “In business, everything begins with the profit motive. … Just the very idea of research is geared towards a product rather than knowledge itself. The most critical factor in determining whether a scientist is going to be successful in making the transition from the university to the private sector is the ability to buy into that point of view.”

That product-driven mission means that research freedom can be limited. In most companies, research topics are largely chosen by the business or marketing departments. At Chryso, for example, where Eychenne today leads an R&D team for construction materials chemicals near Paris, research is almost always initiated from a marketing brief, “a precise and accurate description of the unmet needs of the customers,” he says. That’s not true in every industry, however: In the software industry, projects are often chosen in a more bottom-up approach. “We go to the product teams and ask them what sort of projects they are interested in,” says Jaime Teevan, a scientist at Microsoft Research in Redmond, Washington. Teevan feels she has “a lot of freedom to do whatever kind of research that I want.”

Michael A. Santoro
Courtesy, Michael A. Santoro

Michael Santoro

In the corporate setting, research projects are regularly evaluated against their objectives, targeted costs, and timeline. “In industry, there is always the tendency in the management to have more control, get more accountability, measure things, milestones here, milestones there,” Ebeling says. And if your project doesn’t meet all of its objectives, it may be killed. If “we’re making nice progress and a project is terminated for whatever other … financial, patent, marketing reasons, then we have to take a professional attitude and say ‘Okay, … it’s not going where we wanted it to go,’ ” Ebeling says. You just have to get your act together and move on to the next project, he adds.

There’s also the issue of the freedom to publish. In industry, you can’t just say, “This is a brand-new result and others may be working on it, so I want to get it published next week,” Ebeling says. Your company will first want to check whether they can file patent applications, and “you have to wait until you get clearance, … because, at the end of the day, we need to earn the money we want to spend on new projects.”

Jaime Teevan (Microsoft)
(Microsoft)

Jaime Teevan

Pressures to show immediate and positive results can also challenge the best ethical and professional standards. “The major problem is that a lot of this is out of a scientist’s hands: how her clinical research is going to be conducted, and where it’s going to be published, and how it might be presented, and all the different kinds of issues that have arisen over and over again,” especially in the pharmaceutical industry, Santoro says.

Yet it’s important for scientists to understand “that they’re not just passive actors in the ethical dramas,” Santoro adds. “While they’re working with businesspeople and others who are going to be, in essence, putting pressure on them, they have a responsibility to act with integrity within their own organizations. And it may require a lot of bravery. It may require sometimes putting your job at risk.”

What there is to gain

It’s easy to focus on the challenges of doing for-profit science, but there are many reasons to consider an industry career. One of scientists’ main motivations for going to industry is to see their research improve people’s lives. You can do so in academia as well, but “if you would like to see in a short time period the impact of your research on the real life, you need to go to the industry,” Eychenne says.

Martin Ebeling (Hoffmann-La Roche)
(Hoffmann-La Roche)

Martin Ebeling

Your research may be best done within a company. “Because of the resources available and the scientific talent that’s already in the private sector, … many scientists will find that good science in a pure sense is being done in many world-class companies,” Santoro says. Outside of shiny equipment, companies can offer access to unique research tools and databases. Jennifer Rexford, now a tenured computer scientist atPrinceton University, spent 8 years at local company AT&T Labs – Research. “Being inside a company that was running an Internet backbone and had a lot of measurement data and access to interesting research, … I actually was able to work on things that if I had been an academic I would have had a hard time doing,” she says.

Rexford also found more space to reinvent herself within industry. The scientific community’s interest in her Ph.D. topic had started to wane, and she felt that changing her area of expertise while trying to juggle research, grant-writing, teaching, and advising as a junior faculty member would be too difficult. At AT&T, however, Rexford could spend her first couple of years exploring new research topics, generating preliminary data, and building relationships. “I was actually better able to take risks like that without having to worry about the tenure pipeline.”

 

Industry research can also prove very rewarding. Research is often carried out in teams that are dependent on each member’s input, so your work will be highly valued. “In an industrial setting, you have a sense of fitting into a larger whole and being valued for that,” Rexford says. Ebeling has found that to be true as well: At Hoffmann-La Roche, he says that people “come to me and they ask for my advice and they are ready to bet [their] work on the correctness of my theoretical predictions. That is the most rewarding experience I have ever had.” All he would get for this in academia is to “be a third and fourth author on many, many publications, but I wouldn’t qualify for heading a bioinformatics department in a university,” Ebeling says.

Of course, there are also the monetary aspects: Industry usually pays much better than academia and offers more competitive benefits packages. And, in general, industry jobs have a favorable work-life balance: Without the added commitments of teaching, advising students, and applying for grants that come with an academic job, industry scientists can stay focused on their research. “The administrative overhead in academia is probably higher than in most industry environments,” Ebeling says. Industry scientists also generally work within normal business hours, often on a flexible work schedule. Ebeling has two boys, ages 5 and 7, and says, “It’s extremely important for me to be a major part of their lives, not somebody who says ‘goodbye’ in the morning and then kisses them goodnight in the late evening,” he says.

Decision time

If you’re considering a career in industry, identify your values and priorities and see what companies offer a good match for your research topic and ideal working culture.

A good way to figure out whether industrial life at a specific company could be for you is to do an internship. Rexford had worked at AT&T for four summers before deciding to work there full-time. “I knew the place and I knew that I fit in it and that I would have the kind of research freedom I wanted to have,” she says. If you can’t get an internship, find another excuse to visit. “You should go there and you should talk … not only to the boss but also to potential colleagues,” Ebeling says.

Jennifer Rexford
(Courtesy, Jennifer Rexford )

Jennifer Rexford

You also need to pay attention to the ethics behind your company’s products. Ask yourself how comfortable you are with the impact the products you will be working on will have on society. “You need to love the final product,” Eychenne says. You also need to weigh what it will take to develop those products. For young researchers in particular, it may be important to work in an environmentally sustainable industry, Eychenne says. Ultimately, “you need to be in line with the ethics of your company. Of course, some companies are less ethic[al] than others,” he adds.

Depending on the industry, scientists contemplating a job at a particular company may have to do a bit more soul-searching than their academic counterparts do. “Anyone going from academia to the private sector should ask themselves, ‘Am I selling out?’ And they should have a good answer for that,” Santoro says. But today, they are not the only ones to be confronted with the profit motive. With universities always keen to collaborate with industry and make money out of their intellectual property, research commercialization has become pervasive in academia, too, Santoro says. Whether in academia or industry, “that is part and parcel of the ethical training and life of any scientist to think about how practicalities are causing compromises in one’s work,” he adds.

Industry “is not the dark side,” Eychenne says. “Mostly, we can’t find breakthroughs in the industry without the academy, and we can’t find money for the academy without applications in the real life.” Rather, Eychenne adds, it’s just “another side” of the research endeavor.

Photo (top): Kazue

Elisabeth Pain is contributing editor for South Europe.
10.1126/science.caredit.a0900066

Glass story—Corning

Watch and share “A Day Made of Glass 2: Unpacked,” to see how Corning’s highly engineered glass, with companion technologies, will help shape our world. Take a journey with our narrator for details on these technologies, answers to your questions, and to learn about what’s possible — and what’s not — in the near future.

Here is the question, how much does Corning contribute to those charming technology? Is that the glass only choice?

 

Li-Fi, Wi-Fi replacement?

Researchers have used rapid pulses of light to transmit information at speeds of over 500 megabytes per second  at the Heinrich Hertz Institute in Berlin. Dubbed Li-Fi (not to be confused with Light Fidelity) is this a viable competitor to conventional wifi ?

“At the heart of this technology is a new generation of high-brightness light-emitting diodes” says Harold Hass from the University of Edinburgh ”Very simply, if the LED is on, you transmit a digital 1, if it’s off you transmit a 0. They can be switched on and off very quickly, which gives nice opportunities for transmitting data.”

It is possible to encode data in the light by varying the rate at which the LEDs flicker on an off to give different strings of 1s and 0s. The modulation is so fast that the human eye doesn’t notice.

“There are over 14 billion light bulbs world wide, they just need to be replaced with LED ones that transmit data”.

This may solve issues such as the shortage of radio-frequency bandwidth and also allow internet where traditional radio based wireless isn’t allowed such as aircraft or hospitals. One of the shortcomings however is that it only work in direct line of sight.

[http://the-gadgeteer.com/2011/08/29/li-fi-internet-at-the-speed-of-light/]

Will Li-Fi be the new Wi-Fi?

FLICKERING lights are annoying but they may have an upside. Visible light communication (VLC) uses rapid pulses of light to transmit information wirelessly. Now it may be ready to compete with conventional Wi-Fi.

“At the heart of this technology is a new generation of high-brightness light-emitting diodes,” says Harald Haas from the University of Edinburgh, UK. “Very simply, if the LED is on, you transmit a digital 1, if it’s off you transmit a 0,” Haas says. “They can be switched on and off very quickly, which gives nice opportunities for transmitting data.”

It is possible to encode data in the light by varying the rate at which the LEDs flicker on and off to give different strings of 1s and 0s. The LED intensity is modulated so rapidly that human eyes cannot notice, so the output appears constant.

More sophisticated techniques could dramatically increase VLC data rates. Teams at the University of Oxford and the University of Edinburgh are focusing on parallel data transmission using arrays of LEDs, where each LED transmits a different data stream. Other groups are using mixtures of red, green and blue LEDs to alter the light’s frequency, with each frequency encoding a different data channel.

Li-Fi, as it has been dubbed, has already achieved blisteringly high speeds in the lab. Researchers at the Heinrich Hertz Institute in Berlin, Germany, have reached data rates of over 500 megabytes per second using a standard white-light LED. Haas has set up a spin-off firm to sell a consumer VLC transmitter that is due for launch next year. It is capable of transmitting data at 100 MB/s – faster than most UK broadband connections.

Once established, VLC could solve some major communication problems. In 2009, the US Federal Communications Commission warned of a looming spectrum crisis: because our mobile devices are so data-hungry we will soon run out of radio-frequency bandwidth. Li-Fi could free up bandwidth, especially as much of the infrastructure is already in place.

“There are around 14 billion light bulbs worldwide, they just need to be replaced with LED ones that transmit data,” says Haas. “We reckon VLC is a factor of ten cheaper than Wi-Fi.” Because it uses light rather than radio-frequency signals, VLC could be used safely in aircraft, integrated into medical devices and hospitals where Wi-Fi is banned, or even underwater, where Wi-Fi doesn’t work at all.

“The time is right for VLC, I strongly believe that,” says Haas, who presented his work at TED Global in Edinburgh last week.

But some sound a cautious note about VLC’s prospects. It only works in direct line of sight, for example, although this also makes it harder to intercept than Wi-Fi. “There has been a lot of early hype, and there are some very good applications,” says Mark Leeson from the University of Warwick, UK. “But I’m doubtful it’s a panacea. This isn’t technology without a point, but I don’t think it sweeps all before it, either.”

 

[http://www.newscientist.com/article/mg21128225.400-will-lifi-be-the-new-wifi.html]

Verizon launches 100G Ethernet network

Verizon (March 4, 2011) successfully deployed a 100G Ethernet network on a large section of one of its Internet backbones in Europe.

This deployment makes Verizon the first backbone carrier to deploy the new Ethernet standard with speeds of up to 100 gigabits per second, according to Verizon. The company was able to establish the 100-Gigabit Ethernet network between routers on a 555-mile stretch between Paris and Frankfurt.
In Verizon’s words, this marks the first “standards-based, multivendor 100G Ethernet link for an IP backbone,” and it will increase capacity for business customers and organizations that tap into the backbone.

Internet Protocol backbones use high-speed fiber-optic lines to connect the major routers across the Internet, enabling different networks to talk to each other. Separate IP backbones are maintained by different companies and organizations, including telecom providers such as Verizon and AT&T. Providing a major performance boost over the older 1G and 10G Ethernet and the more recent 40G Ethernet, the 100G Ethernet standard itself was ratified by the IEEE (the Institute of Electrical and Electronics Engineers) last summer.

Wellbrock ( director of optical transport network architecture and design for Verizon) confirmed that although different enterprises may be launching 100G Ethernet networks within their own organizations, Verizon believes it’s the first backbone carrier to successfully deploy it. But Verizon was not alone in the effort as two other companies contributed critical pieces, making this a true multivendor project.

See more of the story:
http://news.cnet.com/8301-11386_3-20039383-76.html?tag=mncol;title
http://ioptic.blogspot.com/2011/08/verizon-launches-100g-ethernet-network.html

Google 1Gbps network near Stanford is live [CNET]

By: , August 23, 2011 3:17 PM PDT

Some residents near Stanford University in Palo Alto, Calif., are getting the first taste of Google’s 1-gigabit-per-second broadband service.

Google logo

The service has been live in the market for about a month, and it will continue to be rolled out to homes in the community, where mostly Stanford professors and faculty live. The service is free to residents for the first year.

Google is building the Stanford fiber-to-the-home network and a larger network inKansas City, Kansas, as sort of test beds for ultra-high speed broadband. So far, residents in the Stanford community are the first to get access to the high-speed networks that Google is building.

Stanford economics professor Martin Carnoy, who was one of the first people in the neighborhood to get the high-speed access, said he has been loving his new high-speed service. He frequently sends and receives big data files of 20MB or greater from his home computer.

“It used to take several minutes to send big files with the AT&T broadband service I had before,” he said. “I felt like I was always waiting around when I was sending or receiving files. But now it takes seconds. There’s no waiting.”
Carnoy hasn’t tested his connection to see how fast the service is, but Engadgetreports that at least one Stanford resident says he has tested the network and is getting about 150Mbps download speeds and upload speeds around 92Mbps.

The idea behind the Google Fiber initiative is to provide 100 times faster speed broadband connections to businesses and homes so that entrepreneurs can use these networks to innovate and test new ideas for Internet services and applications.

“High-speed Internet access must be much more widely available,” Eric Schmidt, Google’s chairman, said when the company first announced the project. “Broadband is a major driver of new jobs and businesses, yet we rank only 15th in the world for access. More government support for broadband remains critical.”
Getting broadband and super fast broadband to Americans is a stated goal of the Federal Communications Commission. The agency said in its National Broadband Plan that it plans to extend broadband to every American and it promises to offer 100 Mbps broadband to 100 million people by 2020.

A separate initiative called GigU driven by 29 universities in the U.S. is also looking to build 1Gbps networks in and around universities.

Most major universities already have access to cutting edge Internet technology, and many are involved in research and development networks such as Internet 2, which is used to connect universities throughout the world to share data and test new Internet technologies. But Google Fiber and Gig.U are extending this kind of high speed Internet access outside the university to the private sector.