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Scandium: Characteristics, Origin And Applications

Scandium: Characteristics, Origin and Applications

by

chocolover715

Historically considered a rare earth metal, Scandium is a transition metal with a chemical element symbol Sc and atomic number 21 (its number in the periodic table). It is one of the scarcest chemical elements available for extraction; it has only a few known sources worldwide where it is found co-present in rare earth deposits and deposits of uranium compounds.

Characteristics

Scandium has a silvery white color with a hexagonal crystal structure when seen under the microscope. In its extracted, original form, it is a soft silver metal that is highly susceptible to weathering and dilution in acids. When exposed to air, its outer sheen casts a light yellow or light pink hue as a reaction to oxidation.

Scandium is scarce for extraction, but mineralogists consider scandium to be the 50th most common element on earth and the 35th most common element found in the earth s crust. It is almost comparable in availability to cobalt. The reason for this seeming irony is that while scandium is relatively common in the earth s crust, its distribution makes it very difficult to harvest in a wide scale. Scandium is found mostly in trace amounts scattered sparsely among

[youtube]http://www.youtube.com/watch?v=Hb7oNZxCLAo[/youtube]

many kinds of minerals which include uranium and rare earth metals.

Origin and History

Scandium has a slow development compared to other metals and chemical elements. It was first discovered by Lars Fredrik Nilson in 1879 and named after Scandinavia where it was found in minerals of euxenite and gadolinite thru a process called spectral analysis.

Despite its relatively early discovery, scandium s potential for various applications were only tested and exploited in the 1930s. This led to the development of metallic scandium in 1937. During that time, scandium resources were as limited as it is at present. This and the difficulty in

preparing metallic scandium led to its slow development.

It would take another 30 years before applications for scandium were further developed; in 1971, it was discovered that scandium mixed with aluminium alloy can strengthen the alloy for commercial and industrial usage. Scandium-aluminium alloy has remained to be scandium s only major application in industries for decades since.

At present, there are only three mines that commercially produce scandium: Zhovti Vody in Ukraine (in uranium and iron mines); Kola peninsula, Russia (in apatite mines); and Bayan Obo, China (rare earth mines). Other known scandium-rich deposits in the world include Madagascar in Africa and Norway in Europe. Neither is being exploited for their scandium contents.

Uses and Applications

Regular and stable sources of scandium are limited. With no promise of a long term production of scandium, its array of uses and applications in industries, commerce, and technology are not fully identified.

This notwithstanding, scandium still enjoys promising applications particularly in its ability to strengthen aluminium alloys. Only 0.5% of scandium is enough to significantly strengthen aluminium alloys, resulting to scandium-aluminium alloys used in aircrafts, sports equipments, and firearms. Scandium-stabilized zirconia is also being recognized as a high efficiency electrolyte for use in fuel cells, particularly solid oxide fuel cells.

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ACLU, EFF challenging US ‘secret’ court orders seeking Twitter data

Thursday, April 7, 2011

Late last month, the American Civil Liberties Union (ACLU) and Electronic Frontier Foundation (EFF) filed objections to the United States Government’s ‘secret’ attempts to obtain Twitter account information relating to WikiLeaks. The ACLU and EFF cite First and Fourth amendment issues as overriding reasons to overturn government attempts to keep their investigation secret; and, that with Birgitta Jonsdottir being an Icelandic Parliamentarian, the issue has serious international implications.

The case, titled “In the Matter of the 2703(d) Order Relating to Twitter Accounts: Wikileaks, Rop_G, IOERROR; and BirgittaJ“, has been in the EFF’s sights since late last year when they became aware of the US government’s attempts to investigate WikiLeaks-related communications using the popular microblogging service.

The key objective of this US government investigation is to obtain data for the prosecution of Bradley Manning, alleged to have supplied classified data to WikiLeaks. In addition to Manning’s Twitter account, and that of WikiLeaks (@wikileaks), the following three accounts are subject to the order: @ioerror, @birgittaj, and @rop_g. These, respectively, belong to Jacob Apelbaum, Birgitta Jonsdottir, and Rop Gonggrijp.

Birgitta is not the only non-US citizen with their Twitter account targeted by the US Government; Gonggrijp, a Dutch ‘ex-hacker’-turned-security-expert, was one of the founders of XS4ALL – the first Internet Service Provider in the Netherlands available to the public. He has worked on a mobile phone that can encrypt conversations, and proven that electronic voting systems can readily be hacked.

In early March, a Virginia magistrate judge ruled that the government could have the sought records, and neither the targeted users, or the public, could see documents submitted to justify data being passed to the government. The data sought is as follows:

  1. Personal contact information, including addresses
  2. Financial data, including credit card or bank account numbers
  3. Twitter account activity information, including the “date, time, length, and method of connections” plus the “source and destination Internet Protocol address(es)”
  4. Direct Message (DM) information, including the email addresses and IP addresses of everyone with whom the Parties have exchanged DMs

The order demands disclosure of absolutely all such data from November 1, 2009 for the targeted accounts.

The ACLU and EFF are not only challenging this, but demanding that all submissions made by the US government to justify the Twitter disclosure are made public, plus details of any other such cases which have been processed in secret.

Bradley Manning, at the time a specialist from Maryland enlisted with the United States Army’s 2nd Brigade, 10th Mountain Division, was arrested in June last year in connection with the leaking of classified combat video to WikiLeaks.

The leaked video footage, taken from a US helicopter gunship, showed the deaths of Reuters staff Saeed Chmagh and Namir Noor-Eldeen during a U.S. assault in Baghdad, Iraq. The wire agency unsuccessfully attempted to get the footage released via a Freedom of Information Act request in 2007.

When WikiLeaks released the video footage it directly contradicted the official line taken by the U.S. Army asserting that the deaths of the two Reuters staff were “collateral damage” in an attack on Iraqi insurgents. The radio chatter associated with the AH-64 Apache video indicated the helicopter crews had mistakenly identified the journalists’ equipment as weaponry.

The US government also claims Manning is linked to CableGate; the passing of around a quarter of a million classified diplomatic cables to WikiLeaks. Manning has been in detention since July last year; in December allegations of torture were made to the United Nations High Commissioner for Human Rights regarding the conditions under which he was and is being detained.

Reports last month that he must now sleep naked and attend role call at the U.S. Marine facility in Quantico in the same state, raised further concern over his detention conditions. Philip J. Crowley, at-the-time a State Department spokesman, remarked on this whilst speaking at Massachusetts Institute of Technology; describing the current treatment of Manning as “ridiculous and counterproductive and stupid”, Crowley was, as a consequence, put in the position of having to tender his resignation to Secretary of State Hillary Clinton.

Despite his native Australia finding, in December last year, that Assange’s WikiLeaks had not committed any criminal offences in their jurisdiction, the U.S. government has continued to make ongoing operations very difficult for the whistleblower website.

The result of the Australian Federal Police investigation left the country’s Prime Minister, Julia Gillard, having to retract a statement that WikiLeaks had acted “illegally”; instead, she characterised the site’s actions as “grossly irresponsible”.

Even with Australia finding no illegal activity on the part of WikiLeaks, and with founder Julian Assange facing extradition to Sweden, U.S. pressure sought to hobble WikiLeaks financially.

Based on a State Department letter, online payments site PayPal suspended WikiLeaks account in December. Their action was swiftly followed by Visa Europe and Mastercard ceasing to handle payments for WikiLeaks.

The online processing company, Datacell, threatened the two credit card giants with legal action over this. However, avenues of funding for the site were further curtailed when both Amazon.com and Swiss bank PostFinance joined the financial boycott of WikiLeaks.

Assange continues, to this day, to argue that his extradition to Sweden for questioning on alleged sexual offences is being orchestrated by the U.S. in an effort to discredit him, and thus WikiLeaks.

Wikinews consulted an IT and cryptography expert from the Belgian university which developed the current Advanced Encryption Standard; explaining modern communications, he stated: “Cryptography has developed to such a level that intercepting communications is no longer cost effective. That is, if any user uses the correct default settings, and makes sure that he/she is really connecting to Twitter it is highly unlikely that even the NSA can break the cryptography for a protocol such as SSL/TLS (used for https).”

Qualifying this, he commented that “the vulnerable parts of the communication are the end points.” To make his point, he cited the following quote from Gene Spafford: “Using encryption on the Internet is the equivalent of arranging an armored car to deliver credit card information from someone living in a cardboard box to someone living on a park bench.

Continuing, the Katholieke Universiteit Leuven (KUL) expert explained:

In the first place, the weak point is Twitter itself; the US government can go and ask for the data; companies such as Twitter and Google will typically store quite some information on their users, including IP addresses (it is known that Google deletes the last byte of the IP address after a few weeks, but it is not too hard for a motivated opponent to find out what this byte was).
In the second place, this is the computer of the user: by exploiting system weaknesses (with viruses, Trojan horses or backdoors in the operating system) a highly motivated opponent can enter your machine and record your keystrokes plus everything that is happening (e.g. the FBI is known to do this with the so-called Magic Lantern software). Such software is also commercially available, e.g. for a company to monitor its employees.
It would also be possible for a higly motivated opponent to play “man-in-the-middle”; that means that instead of having a secure connection to Twitter.com, you have a secure connection to the attacker’s server, who impersonates Twitter’s and then relays your information to Twitter. This requires tricks such as spoofing DNS (this is getting harder with DNSsec), or misleading the user (e.g. the user clicks on a link and connects to tw!tter.com or Twitter.c0m, which look very similar in a URL window as Twitter.com). It is clear that the US government is capable of using these kind of tricks; e.g., a company has been linked to the US government that was recognized as legitimate signer in the major browsers, so it would not be too large for them to sign a legitimate certificate for such a spoofing webserver; this means that the probability that a user would detect a problem would be very low.
As for traffic analysis (finding out who you are talking to rather than finding out what you are telling to whom), NSA and GCHQ are known to have access to lots of traffic (part of this is obtained via the UK-USA agreement). Even if one uses strong encryption, it is feasible for them to log the IP addresses and email addresses of all the parties you are connecting to. If necessary, they can even make routers re-route your traffic to their servers. In addition, the European Data Retention directive forces all operators to store such traffic data.
Whether other companies would have complied with such requests: this is very hard to tell. I believe however that it is very plausible that companies such as Google, Skype or Facebook would comply with such requests if they came from a government.
In summary: unless you go through great lengths to log through to several computers in multiple countries, you work in a clean virtual machine, you use private browser settings (don’t accept cookies, no plugins for Firefox, etc.) and use tools such as Tor, it is rather easy for any service provider to identify you.
Finally: I prefer not to be quoted on any sentences in which I make statements on the capabilities or actions of any particular government.

Wikinews also consulted French IT security researcher Stevens Le Blond on the issues surrounding the case, and the state-of-the-art in monitoring, and analysing, communications online. Le Blond, currently presenting a research paper on attacks on Tor to USENIX audiences in North America, responded via email:

Were the US Government to obtain the sought data, it would seem reasonable the NSA would handle further investigation. How would you expect them to exploit the data and expand on what they receive from Twitter?

  • Le Blond: My understanding is that the DOJ is requesting the following information: 1) Connection records and session times 2) IP addresses 3) e-mail addresses 4) banking info
By requesting 1) and 2) for Birgitta and other people involved with WikiLeaks (WL) since 2009, one could derive 2 main [pieces of] information.
First, he could tell the mobility of these people. Recent research in networking shows that you can map an IP address into a geographic location with a median error of 600 meters. So by looking at changes of IP addresses in time for a Twitter user, one could tell (or at least speculate about) where that person has been.
Second, by correlating locations of different people involved with WL in time, one could possibly derive their interactions and maybe even their level of involvement with WL. Whether it is possible to derive this information from 1) and 2) depends on how this people use Twitter. For example, do they log on Twitter often enough, long enough, and from enough places?
My research indicates that this is the case for other Internet services but I cannot tell whether it is the case for Twitter.
Note that even though IP logging, as done by Twitter, is similar to the logging done by GSM [mobile phone] operators, the major difference seems to be that Twitter is subject to US regulation, no matter the citizenship of its users. I find this rather disturbing.
Using 3), one could search for Birgitta on other Internet services, such as social networks, to find more information on her (e.g., hidden accounts). Recent research on privacy shows that people tend to use the same e-mail address to register an account on different social networks (even when they don’t want these accounts to be linked together). Obviously, one could then issue subpoenas for these accounts as well.
I do not have the expertise to comment on what could be done with 4).
((WN)) As I believe Jonsdottir to be involved in the Icelandic Modern Media Initiative (IMMI), what are the wider implications beyond the “WikiLeaks witchhunt”?
  • Le Blond: Personal data can be used to discredit, especially if the data is not public.

Having been alerted to the ongoing case through a joint press release by the ACLU and EFF, Wikinews sought clarification on the primary issues which the two non-profits saw as particularly important in challenging the U.S. Government over the ‘secret’ court orders. Rebecca Jeschke, Media Relations Director for the EFF, explained in more detail the points crucial to them, responding to a few questions from Wikinews on the case:

((WN)) As a worse-case, what precedents would be considered if this went to the Supreme Court?
  • Rebecca Jeschke: It’s extremely hard to know at this stage if this would go to the Supreme Court, and if it did, what would be at issue. However, some of the interesting questions about this case center on the rights of people around the world when they use US Internet services. This case questions the limits of US law enforcement, which may turn out to be very different from the limits in other countries.
((WN)) Since this is clearly a politicised attack on free speech with most chilling potential repercussions for the press, whistleblowers, and by-and-large anyone the relevant U.S. Government departments objects to the actions of, what action do you believe should be taken to protect free speech rights?
  • Jeschke: We believe that, except in very rare circumstances, the government should not be permitted to obtain information about individuals’ private Internet communications in secret. We also believe that Internet companies should, whenever possible, take steps to ensure their customers are notified about requests for information and have the opportunity to respond.
((WN)) Twitter via the web, in my experience, tends to use https:// connections. Are you aware of any possibility of the government cracking such connections? (I’m not up to date on the crypto arms race).
  • Jeschke: You don’t need to crack https, per se, to compromise its security. See this piece about fraudulent https certificates:
Iranian hackers obtain fraudulent httpsEFF website.
((WN)) And, do you believe that far, far more websites should – by default – employ https:// connections to protect people’s privacy?
  • Jeschke: We absolutely think that more websites should employ https! Here is a guide for site operators: (See external links, Ed.)

Finally, Wikinews approached the Icelandic politician, and WikiLeaks supporter, who has made this specific case a landmark in how the U.S. Government handles dealings with – supposedly – friendly governments and their elected representatives. A number of questions were posed, seeking the Icelandic Parliamentarian’s views:

((WN)) How did you feel when you were notified the US Government wanted your Twitter account, and message, details? Were you shocked?
  • Birgitta Jonsdottir: I felt angry but not shocked. I was expecting something like this to happen because of my involvement with WikiLeaks. My first reaction was to tweet about it.
((WN)) What do you believe is their reasoning in selecting you as a ‘target’?
  • Jonsdottir: It is quite clear to me that USA authorities are after Julian Assange and will use any means possible to get even with him. I think I am simply a pawn in a much larger context. I did of course both act as a spokesperson for WikiLeaks in relation to the Apache video and briefly for WikiLeaks, and I put my name to the video as a co-producer. I have not participated in any illegal activity and thus being a target doesn’t make me lose any sleep.
((WN)) Are you concerned that, as a Member of Parliament involved in the Icelandic Modern Media Initiative (IMMI), the US attempt to obtain your Twitter data is interfering with planned Icelandic government policy?
  • Jonsdottir: No
((WN)) In an earlier New York Times (NYT) article, you’re indicating there is nothing they can obtain about you that bothers you; but, how do you react to them wanting to know everyone you talk to?
  • Jonsdottir: It bothers me and according to top computer scientists the government should be required to obtain a search warrant to get our IP addresses from Twitter. I am, though, happy I am among the people DOJ is casting their nets around because of my parliamentary immunity; I have a greater protection then many other users and can use that immunity to raise the issue of lack of rights for those that use social media.
HAVE YOUR SAY
Do you believe the U.S. government should have the right to access data on foreign nationals using services such as Twitter?
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((WN)) The same NYT article describes you as a WikiLeaks supporter; is this still the case? What attracts you to their ‘radical transparency’?
  • Jonsdottir: I support the concept of WikiLeaks. While we don’t have a culture of protection for sources and whistleblowers we need sites like WikiLeaks. Plus, I think it is important to give WikiLeaks credit for raising awareness about in how bad shape freedom of information and expression is in our world and it is eroding at an alarming rate because of the fact that legal firms for corporations and corrupt politicians have understood the borderless nature of the legalities of the information flow online – we who feel it is important that people have access to information that should remain in the public domain need to step up our fight for those rights. WikiLeaks has played an important role in that context.I don’t support radical transparency – I understand that some things need to remain secret. It is the process of making things secret that needs to be both more transparent and in better consensus with nations.
((WN)) How do you think the Icelandic government would have reacted if it were tens of thousands of their diplomatic communications being leaked?
  • Jonsdottir: I am not sure – A lot of our dirty laundry has been aired via the USA cables – our diplomatic communications with USA were leaked in those cables, so far they have not stirred much debate nor shock. It is unlikely for tens of thousands of cables to leak from Iceland since we dont have the same influence or size as the USA, nor do we have a military.
((WN)) Your ambassador in the US has spoken to the Obama administration. Can you discuss any feedback from that? Do you have your party’s, and government’s, backing in challenging the ordered Twitter data release?
  • Jonsdottir: I have not had any feedback from that meeting, I did however receive a message from the DOJ via the USA ambassador in Iceland. The message stated three things: 1. I am free to travel to the USA. 2. If I would do so, I would not be a subject of involuntary interrogation. 3. I am not under criminal investigation. If this is indeed the reality I wonder why they are insisting on getting my personal details from Twitter. I want to stress that I understand the reasoning of trying to get to Assange through me, but I find it unacceptable since there is no foundation for criminal investigation against him. If WikiLeaks goes down, all the other media partners should go down at the same time. They all served similar roles. The way I see it is that WikiLeaks acted as the senior editor of material leaked to them. They could not by any means be considered a source. The source is the person that leaks the material to WikiLeaks. I am not sure if the media in our world understands how much is at stake for already shaky industry if WikiLeaks will carry on carrying the brunt of the attacks. I think it would be powerful if all the medias that have had access to WikiLeaks material would band together for their defence.
((WN)) Wikinews consulted a Belgian IT security expert who said it was most likely companies such as Facebook, Microsoft, and Google, would have complied with similar court orders *without advising the ‘targets*’. Does that disturb you?
  • Jonsdottir: This does disturb me for various reasons. The most obvious is that my emails are hosted at google/gmail and my search profile. I dont have anything to hide but it is important to note that many of the people that interact with me as a MP via both facebook and my various email accounts don’t always realize that there is no protection for them if they do so via those channels. I often get sensitive personal letters sent to me at facebook and gmail. In general most people are not aware of how little rights they have as users of social media. It is those of uttermost importance that those sites will create the legal disclaimers and agreements that state the most obvious rights we lose when we sign up to their services.
This exclusive interview features first-hand journalism by a Wikinews reporter. See the collaboration page for more details.
((WN)) Has there been any backlash within Iceland against US-based internet services in light of this? Do you expect such, or any increase in anti-American sentiments?
  • Jonsdottir: No, none what so ever. I dont think there is much anti-American sentiments in Iceland and I dont think this case will increase it. However I think it is important for everyone who does not live in the USA and uses social services to note that according to the ruling in my case, they dont have any protection of the 1st and 4th amendment, that only apply to USA citizens. Perhaps the legalities in relation to the borderless reality we live in online need to be upgraded in order for people to feel safe with using social media if it is hosted in the USA. Market tends to bend to simple rules.
((WN)) Does this make you more, or less, determined to see the IMMI succeed?
  • Jonsdottir: More. People have to realize that if we dont have freedom of information online we won’t have it offline. We have to wake up to the fact that our rights to access information that should be in the public domain is eroding while at the same time our rights as citizens online have now been undermined and we are only seen as consumers with consumers rights and in some cases our rights are less than of a product. This development needs to change and change fast before it is too late.

The U.S. Government continues to have issues internationally as a result of material passed to WikiLeaks, and subsequently published.

Within the past week, Ecuador has effectively declared the U.S. ambassador Heather Hodges persona-non-grata over corruption allegations brought to light in leaked cables. Asking the veteran diplomat to leave “as soon as possible”, the country may become the third in South America with no ambassadorial presence. Both Venezuela and Bolivia have no resident U.S. ambassador due to the two left-wing administrations believing the ejected diplomats were working with the opposition.

The U.S. State Department has cautioned Ecuador that a failure to speedily normalise diplomatic relations may jeapordise ongoing trade talks.

The United Kingdom is expected to press the Obama administration over the continuing detention of 23-year-old Manning, who also holds UK citizenship. British lawmakers are to discuss his ongoing detention conditions before again approaching the U.S. with their concerns that his solitary confinement, and treatment therein, is not acceptable.

The 22 charges brought against Manning are currently on hold whilst his fitness to stand trial is assessed.

All American Disposal: Disposing Of Garbage, One Day At A Time

byAlma Abell

Disposing of trash in large quantities is one of the great under-appreciated services of the world. It is not at the forefront of business practices, but it is incredibly important. Without this, businesses would accumulate massive excess in no time at all. But stocking and shipping garbage is a bit more complex, especially with the more resourceful companies. All American Disposal is one resource in particular that provides a full range of garbage removal services to make matters clean and smooth all along the way.

[youtube]http://www.youtube.com/watch?v=PfmF8zWFWLQ[/youtube]

Difficult to Dispose Of GarbageSome of the most useful and common items are surprisingly difficult to dispose of. These are concretes, metals, and steel. They need to be disposed of properly, and match specific coding that is enforced in the city. It is not just a matter of dumping it in piles and calling it a day. Regulations require companies to recycle this material, and any breach of these terms will force some fines to add up. All American Disposal removes this more advanced and recyclable waste in large quantities using waste hauling trucks that best competition in the region.

Clean Up After a Job Well DoneWho really wants to clean up after a massive construction overhaul? It is surprising to know how many construction companies do not stipulate clean up in the aftermath of a renovation or new job. But it is not just construction jobs that are outsourced that cause messes. General changes and in-house alterations require some major cleaning. Construction and yard clean up is common, and these resources are also recyclable more often than not. Officials target the aftermath of a construction or renovation job to see if the materials are being disposed of properly. Be safe and hire a company that does this for living, as opposed to keeping it in house and opening the door for fines and concerns.

There is a lot of trash in the world. Companies can do their part to alleviate the trash burden by encouraging recycling and working with companies that do the same. The regulations are not enough. The best companies strive to recycle as much as possible, and keep business properties in top form.

Nintendo unveils controller for Revolution console

Saturday, September 17, 2005

At Thursday’s keynote presentation of the Tokyo Game Show, Nintendo president Satoru Iwata unveiled the controller design for the company’s new Nintendo Revolution console. Resembling a television remote, the controller uses two sensors placed near the user’s television to triangulate its position in three-dimensional space. This will allow players to control actions and movements in video games by moving the device through the air.

The remote control design is said to target new players who are unfamiliar with traditional video game controllers.

A supplementary peripheral has also been shown, consisting of a separate plastic grip that is designed to be held in the player’s second hand. It provides an analog stick and two trigger buttons, and connects to the bottom of the main controller with a simple cord. Additionally, Nintendo has suggested that the main controller will be able to slide inside a “shell” that will allow it to function like a conventional video game controller.

The Revolution is expected to be released next year.

Paul McCartney slams Chinese fur practices, rules out future concerts in China

Monday, November 28, 2005

Legendary musician Sir Paul McCartney has boycotted China in response to a preview of BBC news footage that was filmed undercover at a fur market in Guangzhou, China. The footage, some of which is to air during BBC’s Six O’Clock News at 18:00 GMT on November 28, 2005, shows animals (particularly dogs and cats) being thrown from the top of buses and being dropped into boiling water. McCartney’s wife, Heather, also watched the footage and alleged that some footage she had seen clearly showed that the animals were alive when they were skinned. The footage, which was filmed by an investigator connected to the animal rights group PETA, shows cats squirming in a bag before being thrown into boiling water, and then skinned in a laundrette drier-like machine.

McCartney slammed the practices, saying, “It’s like something out of the Dark Ages. And they seem to get a kick out of it. They’re just sick, sick people,” referring to the apparent smiles and laughter of the workers handling the animals as they are killed.

He and his wife called for a boycott of Chinese goods, adding that this was unacceptable behaviour from the nation to host the next Olympics.

However, the Chinese Ambassador to London’s spokesperson said that China is not to blame. “The fur trade mostly feeds markets in the US and Europe. This fur is not consumed in China. So the Americans and Europeans should accept the blame.”

Cleveland, Ohio clinic performs US’s first face transplant

Thursday, December 18, 2008

A team of eight transplant surgeons in Cleveland Clinic in Ohio, USA, led by reconstructive surgeon Dr. Maria Siemionow, age 58, have successfully performed the first almost total face transplant in the US, and the fourth globally, on a woman so horribly disfigured due to trauma, that cost her an eye. Two weeks ago Dr. Siemionow, in a 23-hour marathon surgery, replaced 80 percent of her face, by transplanting or grafting bone, nerve, blood vessels, muscles and skin harvested from a female donor’s cadaver.

The Clinic surgeons, in Wednesday’s news conference, described the details of the transplant but upon request, the team did not publish her name, age and cause of injury nor the donor’s identity. The patient’s family desired the reason for her transplant to remain confidential. The Los Angeles Times reported that the patient “had no upper jaw, nose, cheeks or lower eyelids and was unable to eat, talk, smile, smell or breathe on her own.” The clinic’s dermatology and plastic surgery chair, Francis Papay, described the nine hours phase of the procedure: “We transferred the skin, all the facial muscles in the upper face and mid-face, the upper lip, all of the nose, most of the sinuses around the nose, the upper jaw including the teeth, the facial nerve.” Thereafter, another team spent three hours sewing the woman’s blood vessels to that of the donor’s face to restore blood circulation, making the graft a success.

The New York Times reported that “three partial face transplants have been performed since 2005, two in France and one in China, all using facial tissue from a dead donor with permission from their families.” “Only the forehead, upper eyelids, lower lip, lower teeth and jaw are hers, the rest of her face comes from a cadaver; she could not eat on her own or breathe without a hole in her windpipe. About 77 square inches of tissue were transplanted from the donor,” it further described the details of the medical marvel. The patient, however, must take lifetime immunosuppressive drugs, also called antirejection drugs, which do not guarantee success. The transplant team said that in case of failure, it would replace the part with a skin graft taken from her own body.

Dr. Bohdan Pomahac, a Brigham and Women’s Hospital surgeon praised the recent medical development. “There are patients who can benefit tremendously from this. It’s great that it happened,” he said.

Leading bioethicist Arthur Caplan of the University of Pennsylvania withheld judgment on the Cleveland transplant amid grave concerns on the post-operation results. “The biggest ethical problem is dealing with failure — if your face rejects. It would be a living hell. If your face is falling off and you can’t eat and you can’t breathe and you’re suffering in a terrible manner that can’t be reversed, you need to put on the table assistance in dying. There are patients who can benefit tremendously from this. It’s great that it happened,” he said.

Dr Alex Clarke, of the Royal Free Hospital had praised the Clinic for its contribution to medicine. “It is a real step forward for people who have severe disfigurement and this operation has been done by a team who have really prepared and worked towards this for a number of years. These transplants have proven that the technical difficulties can be overcome and psychologically the patients are doing well. They have all have reacted positively and have begun to do things they were not able to before. All the things people thought were barriers to this kind of operations have been overcome,” she said.

The first partial face transplant surgery on a living human was performed on Isabelle Dinoire on November 27 2005, when she was 38, by Professor Bernard Devauchelle, assisted by Professor Jean-Michel Dubernard in Amiens, France. Her Labrador dog mauled her in May 2005. A triangle of face tissue including the nose and mouth was taken from a brain-dead female donor and grafted onto the patient. Scientists elsewhere have performed scalp and ear transplants. However, the claim is the first for a mouth and nose transplant. Experts say the mouth and nose are the most difficult parts of the face to transplant.

In 2004, the same Cleveland Clinic, became the first institution to approve this surgery and test it on cadavers. In October 2006, surgeon Peter Butler at London‘s Royal Free Hospital in the UK was given permission by the NHS ethics board to carry out a full face transplant. His team will select four adult patients (children cannot be selected due to concerns over consent), with operations being carried out at six month intervals. In March 2008, the treatment of 30-year-old neurofibromatosis victim Pascal Coler of France ended after having received what his doctors call the worlds first successful full face transplant.

Ethical concerns, psychological impact, problems relating to immunosuppression and consequences of technical failure have prevented teams from performing face transplant operations in the past, even though it has been technically possible to carry out such procedures for years.

Mr Iain Hutchison, of Barts and the London Hospital, warned of several problems with face transplants, such as blood vessels in the donated tissue clotting and immunosuppressants failing or increasing the patient’s risk of cancer. He also pointed out ethical issues with the fact that the procedure requires a “beating heart donor”. The transplant is carried out while the donor is brain dead, but still alive by use of a ventilator.

According to Stephen Wigmore, chair of British Transplantation Society’s ethics committee, it is unknown to what extent facial expressions will function in the long term. He said that it is not certain whether a patient could be left worse off in the case of a face transplant failing.

Mr Michael Earley, a member of the Royal College of Surgeon‘s facial transplantation working party, commented that if successful, the transplant would be “a major breakthrough in facial reconstruction” and “a major step forward for the facially disfigured.”

In Wednesday’s conference, Siemionow said “we know that there are so many patients there in their homes where they are hiding from society because they are afraid to walk to the grocery stores, they are afraid to go the the street.” “Our patient was called names and was humiliated. We very much hope that for this very special group of patients there is a hope that someday they will be able to go comfortably from their houses and enjoy the things we take for granted,” she added.

In response to the medical breakthrough, a British medical group led by Royal Free Hospital’s lead surgeon Dr Peter Butler, said they will finish the world’s first full face transplant within a year. “We hope to make an announcement about a full-face operation in the next 12 months. This latest operation shows how facial transplantation can help a particular group of the most severely facially injured people. These are people who would otherwise live a terrible twilight life, shut away from public gaze,” he said.

Arson charge for man who cleaned home with gasoline

Wednesday, April 8, 2009

Ernest Krajniak from Chilton, Wisconsin in the United States has been charged with arson after a lit cigarette ignited gasoline soaked clothes, setting his apartment ablaze.

On Friday April 3, Krajniak, 47, cleaned his entire apartment with about five gallons of gasoline, wiping everything down with the soaked clothes. After he was finished, he piled the soaked clothes in the center of his bedroom, lit a cigarette and then threw what was left of the still lit cigarette, into the pile.

Krajniak never called the fire department and never pulled the alarm. Instead he yelled ‘fire’ a few times then walked to the police station where an ambulance took him to a local hospital for the treatment of minor burns. The fire department later arrived to put out the blaze and his apartment was extensively smoke damaged. 11 other apartments were also damaged, leaving the occupants without a place to stay for at least a week.

“I should have never used that,” said Krajniak during a court appearance on Monday. He admitted to knowing that gasoline was highly flammable. He was arrested and his bond has been set a US$2,500. Krajniak’s next court appearance is scheduled for Monday, April 13. According to WISinfo.com, Krajniak has no prior criminal record.

The careless smoking of cigarettes has been blamed for thousands of fires across the U.S. In January 2008, an unnamed elderly woman in Buffalo, New York was receiving oxygen for medical problems in her home and lit a cigarette and began to smoke it. The oxygen coming from her mask then facilitated the ignition of her clothing, setting her on fire.

In the U.S. in 2002, only 4% of all residential fires were reportedly caused by smoking materials. These fires, however, were responsible for 19% of residential fire fatalities and 9% of injuries. The fatality rate due to smoking is nearly four times higher than the overall residential fire rate; injuries are more than twice as likely. Forty percent of all smoking fires start in the bedroom or living room/family room; in 35% of these fires, bedding or upholstered furniture are the items first ignited.

Israeli paratroopers stop 15-year-old Palestinian from detonating himself

Wednesday, April 13, 2005

Hassan Hashash, a Palestinian aged 15, was detained by the Israeli military on Tuesday, April 12, at the Hawara checkpoint south of Nablus in the West Bank. Hashash had been hiding five explosive charges under a winter coat before attempting to ignite one in the presence of Israeli soldiers, the military said. In the sweltering 26°C (78°F) heat, the teenager’s incongruous attire caught the attention of an IDF paratrooper nicknamed Muli.

“The boy pulled out a matchbox, held up a pipe bomb, and attempted to detonate it,” said Muli. “We aimed our weapons at him and told him to move away from us” (Ynet).

The military reported that after taking the youth to an isolated area they searched him and found another four explosives.

“You could see it’s a young child who was sent [by someone],” said Muli. “I looked into his eyes: he was on the brink of tears and scared to death.”

The Hawara checkpoint has seen this kind of trouble before. In April 2004, soldiers there arrested a 16-year-old, also Palestinian, with a suicide bomb strapped to his body. The teenager, Hussam Abdo, later told an Israeli newspaper he was on a mission to kill Israeli soldiers. [1]

Israeli radio noted that this is the third Palestinian child in the past two months caught attempting to transfer explosives past Israeli checkpoints.

Pfizer and Microsoft team up against Viagra spam

Sunday, February 13, 2005

New York –”Buy cheap Viagra through us – no prescription required!” Anyone with an active email account will recognize lines like this one. According to some reports, unsolicited advertisements (spam) for Viagra and similar drugs account for one in four spam messages.

BACKGROUND

Spamming remains one of the biggest problems facing email users today. While users and systems administrators have improved their defenses against unsolicited email, many spammers now insert random words or characters into their letters in order to bypass filters. The Wikipedia article Stopping email abuse provides an overview of the various strategies employed by companies, Internet users and systems administrators to deal with the issue.

Ever since pharmaceutical giant Pfizer promised to cure erectile dysfunction once and for all with its blue pills containing the drug sildenafil citrate, spammers have tried to tap into male anxiety by offering prescription-free sales of unapproved “generic” Viagra and clones such as Cialis soft tabs. Legislation like the U.S. CAN-SPAM act has done little to stem the tide of email advertising the products.

Now Pfizer has entered a pledge with Microsoft Corporation, the world’s largest software company, to address the problem. The joint effort will focus on lawsuits against spammers as well as the companies they advertise. “Pfizer is joining with Microsoft on these actions as part of our shared pledge to reduce the sale of these products and to fight the senders of unsolicited e-mail that overwhelms people’s inboxes,” said Jeff Kindler, executive vice president at Pfizer.

Microsoft has filed civil actions against spammers advertising the websites CanadianPharmacy and E-Pharmacy Direct. Pfizer has filed lawsuits against the two companies, and has taken actions against websites which use the word “Viagra” in their domain names. Sales of controlled drugs from Canadian pharmacies to the United States are illegal, but most drugs sold in Canada have nevertheless undergone testing by the U.S. Food and Drug Administration. This is not the case for many of the Viagra clones sold by Internet companies and manufactured in countries like China and India. While it was not clear that CanadianPharmacy was actually shipping drugs from Canada, Pfizer’s general counsel, Beth Levine, claimed that the company filled orders using a call center in Montreal, reported the Toronto Star.

For Microsoft’s part, they allege that the joint effort with Pfizer is part of their “multi-pronged attack on the barrage of spam.” As the creator of the popular email program Outlook, Microsoft has been criticized in the past for the product’s spam filtering process. Recently, Microsoft added anti-spam measures to its popular Exchange server. Exchange 2003 now includes support for accessing so-called real-time block lists, or RTBLs. An RTBL is a list of the IP addresses maintained by a third party; the addresses on the list are those of mailservers thought to have sent spam recently. Exchange 2003 can query the list for each message it receives.