Archive for October, 2013

Melendez challenges murky process at National University of Singapore

October 24, 2013

Alirio Melendez has not distinguished himself by his less than rigorous supervision of research carried out under him. So much so that 13 of his papers have been retracted and there be many more retractions to come. But the National University of Singapore has also shown itself to be less than transparent in handling cases of alleged misconduct. And now Melendez, while acknowledging his failings in supervising research, challenges the NUS on two counts; first for not being specifically able to detail any misconduct directly by him and secondly for its “unfair” process of investigation which ignored his submissions. Retraction Watch has been following the case(s).

Now the murky story reaches the Nature News Blog. The National University of Singapore does not come out of all this very well. When there is muck – they first try to hide it. If that doesn’t work they carry out opaque investigations and political considerations and protecting the “reputation” of the University seem to take priority.

An immunologist accused last year by the National University of Singapore (NUS) of “serious scientific misconduct” relating to 21 research papers says that he refutes the accusations and is calling on the university to make public its report into the matter.

“I categorically deny having been party to any fraudulent or scientific misconduct,” Alirio Melendez, who worked at NUS before joining the University of Glasgow and the University of Liverpool in the UK, wrote on a new website on 16 October, and at the site Retraction Watch, which has been tracking the case.

Melendez has maintained for two years that he is not to blame for the problems found in papers that he co-authored. Yet in December 2012, NUS said that a committee report had found fabrication, falsification or plagiarism associated with 21 papers, and no evidence indicating that other co-authors were involved in the misconduct. Or as Melendez sees it: “without showing any proof whatsoever that I am the guilty party for scientific fraud”.

Thirteen of those papers have now been retracted, and Melendez concedes that as corresponding author he is at fault for signing off the work without overseeing it adequately — a form of misconduct in itself. But in seven of the papers in which NUS found irregularities, he stated last week, he did not contribute data generation, analysis or any part of the manuscript writing.

So far, Melendez’s counterclaims have lacked convincing detail. That is, in part, because neither Melendez nor NUS would provide details of the papers, nor the committee report. Now, Melendez tells Nature that he will shortly post a “paper-by-paper response” on his website, but that it will be his “personal statement” on the papers, not the whole report. “Since this report is confidential I cannot publish it myself without NUS permission,” he claims. ……. 

……. There is also dispute about whether Melendez’s concerns have been given a fair confidential hearing by  NUS. The university says that it “conducted interviews with as many authors as possible” and that Melendez declined responses when a committee visited the United Kingdom in 2011 (which Melendez puts down to ill health).

Melendez says that last year, he did send two replies to the NUS investigation, but that they did not take these responses into consideration for their final report. The NUS spokesperson agrees, and says that Melendez’s responses in 2012 did not address the irregularities that NUS found and were also not sent in time for the deadlines that the university allowed, as guided by its research integrity code. Therefore, they “were not considered part of the record of the inquiry”. But Melendez says he was never made aware of this.

There would seem to be a whole lot of muck hiding under the carpets of the National University of Singapore and while the dirt may be invisible, the smell is spreading.

Russia downgrades Greenpeace 30 charges from piracy to hooliganism

October 23, 2013

Ria Novosti reports:

Investigators in Russia said Wednesday that they have dropped piracy charges against environmental activists and freelance journalists detained last month aboard a Greenpeace ship.

Investigative Committee chief Vladimir Markin said the group will instead be charged with hooliganism.

……. Hooliganism in Russia carries a maximum penalty of seven years in jail.

Russian authorities seized Greenpeace’s Arctic Sunrise icebreaker in mid-September after activists tried to scale an oil rig in the Arctic in protest against offshore drilling in the area. All 30 people on board – comprising 28 Greenpeace activists and two freelance journalists – were detained and later charged with piracy, which is punishable by up to 15 years in prison. …

Markin of Russia’s Investigative Committee also said some members of the group could face charges of using force against state officials.

He said the Greenpeace group’s lack of cooperation with investigators had unnecessarily drawn out the process.

“The failure of the accused to give evidence gave cause for investigators to carefully consider all alternative versions of what took place,” Markin said.

He said investigators needed to consider whether the Greenpeace group had attempted to board the oil platform for financial gain, terrorism or to conduct illicit research activities and espionage.

 

Pope Francis slaps the Bishop of Bling gently on the wrist

October 23, 2013

A temporary suspension from his episcopal duties and a 3 month paid vacation is about all that Pope Francis could impose on the rich and powerful Bishop of Limburg, Franz-Peter Tebartz van Elst.

The Bishop of Bling was summoned to the Vatican to be chastised for his extravagance and was even forced to travel by the modern equivalent of travelling on an ass. He flew Ryan Air!!

But he’s come out of it pretty well. No long drawn out trial. Just a 20 minute chat with the Pope. No inquisition or torture. He probably was not even shown the instruments. No hair shirts, no public penances, no washing of the feet of the poor in his diocese. (Mind you, the diocese is so rich they may not have many poor to speak of). No ceremonial unfrocking. Just a removal of his Bishop’s stole for a few weeks. It all seems very reminiscent of the high and the mighty being treated with kid gloves for their transgressions.

At which mountain resort he is going to spend his 3 month vacation has not been announced but I doubt if it will be uncomfortable or involve any “gardening leave”.

Pope Francis may have some new brooms but he will have to tread lightly when it comes to the traditional centres of power and wealth in the Church.

The Local (Italy): After private meetings with Pope Francis, a bishop who squandered millions on a luxury headquarters has decided to step down – for just three months – the Vatican confirmed on Wednesday.

Bishop of Limburg, Franz-Peter Tebartz van Elst was summoned to the Vatican more than a week ago after reports of his enormous spending emerged at his new complex in western Germany emerged.

…. He met the Pope on Monday for a 20 minute discussion and on Wednesday the Vatican said: “The Holy See deems it appropriate to authorize a period of leave from the diocese for Franz-Peter Tebartz-van Elst. The Holy Father has been continuously and objectively informed of the situation,” it said. A situation has been created in which the bishop can no longer exercise his episcopal duties.”

It is understood the bishop will resume his duties in three months and in the meantime the church is conducting an investigation into his spending at Limburg

Deutsche Welle:

 Limburg Bishop Franz-Peter Tebartz-van Elst shown taking off his stole. Photo: Boris Roessler/dpa

The Bishop of Bling – Photo: Boris Roessler/dpa

Vicar general Wolfgang Rösch from the neighboring city of Wiesbaden was named as the temporary caretaker for the bishop of Limburg’s diocese. Rösch had already been selected to become Limburg’s vicar general beginning January 2014.

Wang versus Wen at the Chinese Academy of Sciences

October 23, 2013

The Chinese Academy of Sciences (CAS), formerly known as Academia Sinica, is the national academy for the natural sciences of the People’s Republic of China. Collectively known as the “Two Academies”  along with the Chinese Academy of Engineering, it is an institution of the State Council of China, functioning as the national scientific thinktank and academic governing body, providing advisory and appraisal services on issues stemming from the national economy, social development, and science and technology progress. It is headquartered in Beijing, with branch institutes all over mainland China. It has also created hundreds of commercial enterprises, with Lenovo being one of the most famous.

Sun tzu

Being selected as  a full member of the Academy is the most sought after position for a Chinese scientist. Selection takes place every two years and this year there are 391 “candidates” and probably no more than 5 – 10% will be selected. At the end of 2008, there were 692 CAS members, including 40 female members and 51 foreign members. So roughly one in 2 million Chinese gets to be a member of the Academy.

Politicking and lobbying are not unknown in the selection of new members. This can be quite cut-throat and vicious as is quite normal in academic rivalry. In this particular case Physics Professors Wang and Wen were competing for a place. Wang – in a master-stroke worthy of Sun Tzu – accused Wen of academic misconduct with regard to a paper published in Nature Communications. Each fired off their ammunition on their blog posts. Three co-authors claimed – or were persuaded to claim – that their names had wrongly been included on the paper by Wen. This effectively killed Wen’s chances. While Wang had won the battle he may have lost the war. The Academy was not amused. Wang had rocked the boat too much. And in the latest development Wang  has now withdrawn – or has been persuaded to withdraw – his candidature. It could be some time before he is allowed to be a candidate again.

South China Morning Post:

A prominent physics professor at Nanjing University, Wang Mu, 51, announced on his blog on Monday his intention to withdraw from this year’s selection race for new members of the Chinese Academy of Sciences (CAS), a title only given to leading scientists and academic authorities in China.

His decision has shocked many in Chinese academic circles. To many, the reason behind it is even more shocking. Wang has withdrawn from the race so he can investigate another candidate, his colleague, 49-year-old physics professor Wen Hai Hu, for alleged academic fraud.

On September 15, Wang informed the Division of Mathematics and Physics of the Chinese Academy of Sciences that in May Wen had published a fraudulent research paper in Nature Communications, a journal focusing on advancements in the field of physical, biological and chemical science.

According to Wang, three co-authors of the published paper didn’t participate in any of the experiments or analysis mentioned in it, and they had never seen the article before it was published. Wang said that in July this year the editorial department of Nature Communications had received a request from the three co-authors to remove their names from the paper. …..

….. While many were disappointed by Wang’s decision, some questioned his motive, which provoked further discussion on whether the CAS member system should be abolished.

“As far as I know, it is a close race between them. To Wang, Wen has become an obstacle on his path to promotion. The fact that Wang bypassed the university and reported to CAS directly has killed Wen’s hopes of becoming a member of CAS. The last thing CAS wants is to see a dirty fight,” a commenter posted on sciencenet.cn.

On October 13, the Ministry of Education of China ordered Nanjing University to investigate the scandal. And the Chinese Academy of Sciences also formed a team to conduct an independent investigation.

UPDATE!

The paper in question seems to be this one:

Influence of microstructure on superconductivity in KxFe2−ySe2 and evidence for a new parent phase K2Fe7Se8, Xiaxin Ding, Delong Fang, Zhenyu Wang, Huan Yang, Jianzhong Liu, Qiang Deng, Guobin Ma,Chong Meng, Yuhui Hu & Hai-Hu Wen, Nature Communications 4, Article number: 1897 (2013) doi:10.1038/ncomms2913

 If the news story is correct Hai-Hu Wen is the senior author and 3 of the 9 other co-authors are the ones who have apparently written to the Editor complaining that their names have “been used in vain”!!

Has Facebook reinstated beheading videos for the NSA or just for revenue – or for both?

October 23, 2013

That Facebook allows NSA access to all its material has become clear from the Snowden leaks.

In addition to phone records and email logs, the National Security Agency uses Facebook and other social media profiles to create maps of social connections — including those of American citizens.

That beheading and other videos with gratuitous violence are often uploaded on  Facebook is apparent (and whichever way Facebook twists and turns it is equally apparent that they must stand as the publishers – if not the authors – of such material). That much of the uploaded material is faked is also apparent (especially from areas of conflict). It is the gratuitous violence which attracts the voyeuristic surfers like a crowd gathering at the scene of a bloody incident. The sight of vultures gathering at the carcass of a kill attract even more scavengers of all kinds. It is the gatherings of the crowds which increases the revenue generating traffic for Facebook.

The more bloodstains on the road the larger the crowd of ghouls who gather. But among the ghouls are also perpetrators returning to the scene of their crimes where the “incident” was not just an accident. And that interests the NSA.

Why then has Facebook removed its ban on such material? There are very few voices supporting the move.

Who gains? Why the NSA and Facebook. The NSA needs material to mine in its search for the “bad” guys. And people who behead others or fake such pictures or are inspired by such material are of special interest. And Facebook wants the revenues.

ArsTechnicaFacebook said that overall, it received between 9,000 and 10,000 requests from authorities in the second half of 2012, pertaining to between 18,000 and 19,000 individual Facebook accounts. …. By the end of July 2013, we learned directly from an FISC judge that no corporation ever served with a “business record” court order under the Patriot Act has ever challenged one. This is despite the fact that the law provides them a means to do so.

Judging by what Facebook does – and not by what it says – also suggests that they are a lot closer to the NSA than they would like their users to know.

Beforeitsnews: About a year after Facebook reportedly joined PRISM, Max Kelly, the social network’s chief security officer left for a job at the National Security Agency, either a curious career move or one that makes complete sense. The Chief Security Officer at a tech company is primarily concerned with keeping its information inside the company. Now working for an agency that tries to gather as much information as it can, Kelly’s new job is sort of a complete reversal.

And it does not matter where in the world you are. If you are on Facebook your information is in a security agency’s database somewhere. It may not have been flagged as being of special interest but it’s there. If not at the NSA then surely at GCHQ or with the Germans or with the Russian agencies. Even if meta-data is only kept for some limited period of time – once your existence has been registered it can never be deregistered. And if the initial data was “flagged” for any reason then that individual will forever be under surveillance.

Strange are the ways of man

October 22, 2013
  1. If a woman is drunk and is raped she is responsible for inviting the rape.
  2. If a man is drunk and rapes he is not responsible for his actions!
  3. Discrimination is bad. Reverse discrimination is good.
  4. Discrimination is unfair. Reverse discrimination is unfair to others (but who don’t deserve fairness).
  5. Discernment is good, discrimination is bad.
  6. Being intelligent is good. To choose intelligent people is discrimination.
  7. If you are born intelligent it is luck and not to your credit.
  8. If you are born stupid it’s your parents’ fault.
  9. To judge people is wrong. Not to judge people is irresponsible.
  10. If you are having fun you are being irresponsible.
  11. The ability to discriminate is good, to discriminate is bad.
  12. If it’s in your genes it’s not your fault. All deviant behaviour is genetic. Ergo – it’s nobody’s fault
  13. The sins of the parents excuse any sins of the children.
  14. There is no God except mine and I am one of my God’s preferred people.
  15. MY God does not report to any superior God. Your God is therefore subordinate to my God.
  16. To kill for God is a good thing.
  17. Just as there is no sound when a tree falls and there is no brain to hear, cheating without being detected can not be cheating.
  18. What is true can be determined by a vote. 
  19. Scientific truth is determined by a consensus.
  20. Results from expensive research are more true than results from inexpensive research.
  21. Biological gender difference can be eliminated by legislation.
  22. There are more than two genders.
  23. As long as I stick to to my constitution, my democracy allows that my majority can oppress your minority.
  24. Immigration from Africa to Europe is bad. European expatriates in Africa are good.
  25. I know best what is good for you.
  26. I also know best what is for the common good.
  27. If it tastes good it’s bad for you.
  28. Normality is a myth. If you think you are normal it’s a bad thing.
  29. Everybody is mentally sick (according to DSM 5)
  30. All mental illness can be treated by expensive medication.

Multiple investigations of multiple allegations of image manipulation at University of New South Wales

October 22, 2013

A supposedly game changing skin cancer drug, a number of retractions of papers, drug trials suspended, allegations of image manipulation, allegations of misconduct from other noted scientists and at least 3 different investigations by his Univesrity, surround Professor Levon Khachigian of the School of Medical Sciences at the University of New South Wales.

At least 6 papers are involved (of which 4 have already been retracted). The University is facing criticism for the pace of their investigations and there are some suggestions that commercial interests may be involved.

ABC News reports:

Research overseen by an eminent scientist at the University of New South Wales is again under investigation following concerns about alleged research misconduct.

The latest allegations centre on a scientific paper into the genetics of heart disease co-authored by Professor Levon Khachigian.

A research team overseen by Professor Khachigian has received many grants from bodies such as the National Health and Medical Research Council, including an $8.3 million grant for 2014 looking at cardiovascular disease research.

The research in question was published in the journal PLOS One in July 2012.

It focused on how muscle cells change into plaque – a key cause of heart attacks.

A scientist complained to the university, saying he believed one of the images appeared to have been manipulated. A letter sent to the university’s vice chancellor of research says “in figure 5, one of the panels has been duplicated, rotated 180 degrees and then used to represent cells treated with a different compound.”

“If anomalies are found, it will be necessary to (conduct interviews) individually to determine who was responsible and whether they were deliberate or accidental,” it says.

The university has conducted an initial investigation and the ABC understands it believes there is a prima facie case of research misconduct.

Professor Khachigian was in the news earlier this year about image manipulation and the suspension of the skin cancer drug DZ13.

ABC News (August 2013):

Clinical trials of an experimental cancer drug have been suspended after serious questions have been raised about the accuracy of some of the scientific data behind it.

The ABC has learnt that the University of New South Wales (UNSW) is investigating a number of allegations concerning the science and data underpinning the DZ13 compound.

DZ13 was developed by an Australian team of researchers led by Professor Levon Khachigian and heralded as a super drug in the fight against skin cancer.

Two investigations conducted at the UNSW into allegations against Professor Khachigian and his team found that there was no evidence of research misconduct.

But the current investigation was prompted by further concerns raised separately by an eminent Australian scientist and one of the former researchers on DZ13.

Both are concerned that images in a paper on DZ13, published in the Journal of Biological Chemistry in 2010, may not be genuine. ……

….. Professor David Vaux is an internationally acclaimed cell scientist at Melbourne’s Walter and Eliza Hall Institute and lectures worldwide on research ethics.

“I think that anybody who has concerns of scientific misconduct, there’s an ethical responsibility for them to raise those concerns with either the designated person to receive allegations of misconduct or with the journal editors or with the authors of the paper,” he said.

In late 2009, he came across images in three papers from Professor Khachigian’s lab relating to genetic research in the Journal of Biological Chemistry that he was concerned were inappropriately duplicated. 

He wrote twice to the journal about his concerns that the images were not genuine.

In July 2010, the three papers were retracted by the authors, who said that the presentation of the images was a genuine error.

In February this year, Professor Vaux came across another paper in the Journal of Biological Chemistry that he said raised similar concerns of image duplication. This paper was focusing on DZ13.

Professor Vaux says this time there was more urgency, as the paper gave support to DZ13, which was about to be administered to patients in clinical trials.

He wrote to the vice-president and deputy vice-chancellor (research) at the University of New South Wales, Professor Les Field, asking for him to carry out an investigation.

I wish to alert you to concerns I have over a possible case of research misconduct at the UNSW. In the paper attached I have annotated the images that I am concerned about…

They appear to contain duplications and/or alterations of images in such a way that the same data is used to represent two different conditions.

Professor Vaux also contacted the National Health and Medical Research Council in June.

I believe it would be important to act quickly, as patients may currently be receiving the agent described in the publication, DZ13, as part of a clinical trial.

If the results in this paper are not genuine, the Human Research Ethics Committee that approved the trial might have been misled, and the patients receiving the drug might not have been able to give properly informed consent.

The “crock of sh*t” wars

October 22, 2013

There is much about global warming political correctness which is depressing

But occasionally there can be a great deal of fun – especially when a self-appointed priest gets called out and loses it.

Bishop Hill (Andrew Montford) reports on a recent lecture by Dr. Rob Wilson of the University of St Andrews where he addressed millennial temperature reconstructions and where Michael Mann and his Hockey Stick and his picky reconstructions came in for some serious criticism:

When we got onto Mann et al 2008, we learned about the silliness of the screening process, and students were invited to try screening a set of random generated timeseries in the way Mann had gone about this study. Tiljander didn’t get a mention, but I guess there are only so many flaws one can take on board, even in a two-hour lecture.

The real fireworks came when Mann’s latest papers, which hypothesise that tree ring proxies have large numbers of missing rings after major volcanic eruptions, were described as “a crock of xxxx”.

But the fun and games comes in the comments to Montford’s post.

Mann was not amused. (He never is – but now he was decidedly shirty).

Rob Wilson was himself one of the commenters and had no complaints about any inaccuracies in the post and added some explanatory comments and references.

“The sh*t then hit the proverbial fan”

Mann started tweeting and retweeting and then deleting his less than diplomatic tweets and in general started “stirring the sh*t”.

Manns deleted tweet:

Mann has already started twitter-marketing this blog post 🙂

‘Closet #climatechange #denier Rob Wilson, comes out of the closet big time: http://www.bishop-hill.net/blog/2013/10/21/wilson-on-millennial-temperature-reconstructions.html … #BadScience #DisingenuousBehavior’

Oct 21, 2013 at 1:47 PM | Unregistered CommenterEspen

That tweet has since been deleted. Commenter Skiphil added a compendium of the Mann tweets

Michael Mann’s outpourings on Twitter have dug his holes deeper, even as he struggles to explain himself. Now he is denying that Rob Wilson’s criticisms are offered in “good faith” —

@dougmcneall I have no problem w/ good faith criticism. But I don’t see Rob Wilson’s latest as falling into that category 😦 [emphasis added]

Mann tweets from more recent to earlier in the day (reverse of the order in which they appeared): 

Michael E. Mann ‏@MichaelEMann 6h

@flimsin @dougmcneall Fair enough Tamsin–lets leave it there. Apologies if I appeared to question your motives. For the record, I do not!

Michael E. Mann ‏@MichaelEMann 6h

Awful blog piece (http://www.bishop-hill.net/blog/2013/10/21/wilson-on-millennial-temperature-reconstructions.html …) may well have misrepresented Rob Wilson’s views. I suspend judgment, pending his disavowal of it..

Michael E. Mann ‏@MichaelEMann 6h

@dougmcneall @flimsin Just 2B clear, I consider Tamsin’s commentary 2B in good faith. I don’t question her integrity, just her views!

Michael E. Mann ‏@MichaelEMann 6h

@flimsin @dougmcneall No problem, didn’t mean to imply any motive Tamsin, but simply that the reinforcement mechanisms favor contrarianism..

Michael E. Mann ‏@MichaelEMann 7h

@dougmcneall @flimsin those mechanisms act regardless of motive. But often they do not serve the public discourse well (2/2).

Michael E. Mann ‏@MichaelEMann 7h

@dougmcneall @flimsin u were wrong. Was pointing out that positive reinforcement mechanisms actually favor taking contrarian position (1/2)

Michael E. Mann ‏@MichaelEMann 8h

Rob Wilson not a climate change denier but has played a contrarian role in debate…

Michael E. Mann ‏@MichaelEMann 8h

@AnsonMackay @flimsin just a statement of fact, not of motive..

Michael E. Mann ‏@MichaelEMann 8h

@dougmcneall I disagree w/ that, as do many climate change communicators

Michael E. Mann ‏@MichaelEMann 8h

@dougmcneall @flimsin Not talking about that. Talking about Rob Wilson talk. Tamsin piece was honest but misguided, as I said at the time.

Michael E. Mann ‏@MichaelEMann 8h

@dougmcneall I have no problem w/ good faith criticism. But I don’t see Rob Wilson’s latest as falling into that category 😦

Michael E. Mann ‏@MichaelEMann 8h

@flimsin nope wasn’t imputing motives.

Michael E. Mann ‏@MichaelEMann 8h

@flimsin Was widely viewed as attack on colleagues like James Hansen for speaking out publicly.

Michael E. Mann ‏@MichaelEMann 8h

Greatly uninterested in twitter was w/ those who seem far more concerned about scientists “tone” than rebutting disingenuous attacks. #Sad

Michael E. Mann ‏@MichaelEMann 8h

@flimsin No doubt your attacks on colleagues over what you call “advocacy” has raised your profile greatly in recent months.

Michael E. Mann ‏@MichaelEMann 8h

@flimsin Tamsin, I don’t need to be lectured on “tone” by you, of all people. Uninterested in a profile-raising twitter debate w/ you.

Michael E. Mann ‏@MichaelEMann 8h

@flimsin Please see the PAGES 2K link that I tweeted. That’s the most basic rebuttal to the sort of nonsense spouted by Rob Wilson.

Michael E. Mann ‏@MichaelEMann 8h

@flimsin Not for criticizing my work, but for apparently regurgitating #denialist drivel by the likes of McIntyre etc.

Oct 21, 2013 at 11:20 PM | Registered CommenterSkiphil
The smell from Mann and his “crock of sh*t” could persist.
His “Hockey Stick” has already been re-baptised as the “Hokey Stick” (though I am not sure who to credit for that).
Some further renaming is now on the cards. A “Crockety Hokey Stick” perhaps to avoid having to use “sh*tty”. Or “The Crocks of Mann”?

Chinese Li-Fi development moves faster than in Europe

October 22, 2013

“Light Fidelity” – Li- Fi  for using light from LED’s as a data carrier instead of radio frequencies was coined at the University of Edinburgh:

PhysOrg: Li-Fi is a term referring to “light fidelity” coined by Prof. Harald Haas from the University of Edinburgh and refers to a type of visible light communication (VLC) technology that delivers a networked, mobile, high-speed communication solution. He set up a private company, PureVLC, to continue exploring the technology.

But now it seems that the Chinese have developed this technology a lot faster than Prof. Haas’ company and could be closer to commercial application than the originators.

Xinhua: 

Successful experiments by Chinese scientists have indicated the possibility of the country’s netizens getting online through signals sent by lightbulbs (LiFi), instead of WiFi.

Four computers under a one-watt LED lightbulb may connect to the Internet under the principle that light can be used as a carrier instead of traditional radio frequencies, as in WiFi, said Chi Nan, an information technology professor with Shanghai’s Fudan University, on Thursday.

A lightbulb with embedded microchips can produce data rates as fast as 150 megabits per second, which is speedier than the average broadband connection in China, said Chi, who leads a LiFi research team including scientists from the Shanghai Institute of Technical Physics of the Chinese Academy of Sciences.

With LiFi cost-effective as well as efficient, netizens should be excited to view 10 sample LiFi kits that will be on display at the China International Industry Fair that will kick off on Nov. 5 in Shanghai.

The current wireless signal transmission equipment is expensive and low in efficiency, said Chi. 

“As for cell phones, millions of base stations have been established around the world to strengthen the signal but most of the energy is consumed on their cooling systems,” she explained. “The energy utilization rate is only 5 percent.”

Compared with base stations, the number of lightbulbs that can be used is practically limitless. Meanwhile, Chinese people are replacing the old-fashioned incandescent bulbs with LED lightbulbs at a fast pace.

“Wherever there is an LED lightbulb, there is an Internet signal,” said Chi. “Turn off the light and there is no signal.”

However, there is still a long way to go to make LiFi a commercial success.

“If the light is blocked, then the signal will be cut off,” said Chi.

More importantly, according to the scientist, the development of a series of key related pieces of technology, including light communication controls as well as microchip design and manufacturing, is still in an experimental period.

Prof. Haas and his company are not very amused and expressed some skepticism.

PhysOrg again: 

As for reactions to the report from China, a spokesperson, according to the BBC, said they thus far had not seen any evidence such as videos or photos in support of the claims. PureVLC spokesman Nikola Serafimovski said they did not know how valid was the report “without seeing more evidence.”

In 2011, Haas demonstrated how an LED bulb equipped with signal processing technology could stream a high-definition video to a computer. Haas performed the first public demonstration of visible light communications live at TED Global, where he showed an angle poise lamp fitted with an LED bulb transmitting high-definition video displayed on a screen. When he interrupted the light with his hand, the video froze and it was then restored when he removed his hand.

Neanderthal’s weren’t vegetarian – they just ate the stomachs of vegetarians

October 21, 2013

English: First reconstruction of Neanderthal m...

The view that calcified plaque found on Neanderthal teeth came from medicinal plants and vegetables, conjuring up visions of a smart, cultured, sensitive race of homo erectus is being challenged. Laura Buck and Chris Stringer believe these remains have a much more violent source. They came from eating the stomachs of prey which in turn were vegetarian. Neanderthals were only vegetarian by proxy.

Hah! We can now go back to the older vision of Neanderthals being brutal, brutish, insensitive, blood-thirsty carnivores!

(Just as an aside, my grandmother was not only a confirmed vegetarian but a devout Hindu for whom the very thought of eating beef was anathema. She couldn’t quite come to terms with the fact that her grandchildren were carnivorous and that they ate gentle things like chickens and goats. I once tried to convince her that I was more of a vegetarian – by proxy – by eating beef rather than chicken since cows were more vegetarian in their diet than chickens. Chickens after all were known to eat worms and other horrible stuff. She gave up any hopes that I would escape everlasting damnation at that point!).

Past Horizons carries this revisionist view of Neanderthals:

(This article titled “The stomach-turning truth about what the Neanderthals ate?” was written by Robin McKie, for The Observer on Saturday 19th October 2013)

It was the tell-tale tartar on the teeth that told the truth. Or at least, that is what it appeared to do. Researchers – after studying calcified plaque on Neanderthal fossil teeth found in El Sidrón cave in Spain – last year concluded that members of this extinct human species cooked vegetables and consumed bitter-tasting medicinal plants such as chamomile and yarrow.

These were not brainless carnivores, in other words. These were smart and sensitive people capable of providing themselves with balanced diets and of treating themselves with health-restoring herbs, concluded the researchers, led by Karen Hardy at the Catalan Institution for Research and Advanced Studies in Barcelona. Our vision of these long-extinct people needs adjusting, they argued.

But now this tale of ancient tartar has taken a new twist with two researchers at London’s Natural History Museum challenging the Barcelona group’s conclusions. Dental research does not prove that Neanderthals were self-medicating, vegetable-eating sophisticates, one told the Observer. There are other, equally valid but decidedly more grizzly explanations to account for those microscopic fragments of herbs and plants found in Neanderthal teeth.

In a paper by Laura Buck and Chris Stringer and published in the latest edition of Quaternary Science Reviews, Stringer argues that the tiny pieces of plant found in Neanderthal teeth could have come from a very different source. They may well have become embedded in the stomach contents of deer, bison and other herbivores that had then been hunted and eaten by Neanderthals.

“Many hunter-gatherers, including the Inuit, Cree and Blackfeet, eat the stomach contents of animals such as deer because they are good source of vitamin C and trace elements,” said Stringer. “For example, among the Inuit, the stomach contents of an animal are considered a special delicacy with a consistency and a flavour that is not unlike cream cheese. At least that is what I am told.” ……

…… Stringer and Buck stress that they are not arguing that Neanderthals definitely did not eat vegetables or could not have used certain herbs as medicines. “What we are saying is that the evidence of plant fragments in Neanderthal teeth is simply not strong enough to prove that they did so. There are other explanations, including the proposal that they ate these organs of the animals they killed. They had the stomach for it, if you want to put it that way.”