Arquivo para October, 2013

German Institute development Wifi 100 GB

18 Oct

According to Gizmodo , the German Fraunhofer Institute for Applied Solid State Physics ( IAF ) SuperWifiand the Karlsruhe Institute of Technology ( KIT ) have developed the world’s fastest Wifi , which exceeds 100 times the Google Fiber internet offering 1 Gbps ( gigabit 1 per second) but using fiber cables great for this.

According to the Institute it Wifi can transfer data at a rate of 100 GB per second without fiber optics, it is possible to transfer the entire contents of a Blu – ray , for example , in just two seconds , indicating a longer application.

Those responsible for the project also asserted that the speed of data transfer can be increased with the use of special optical and electrical techniques ( fiber optics and special cables ) , or with the use of multiple antennas for transmission and reception .

Gizmodo already has announced a super antenna using graphene .

The way things are going telephone signals in Brazil maybe this would be a solution


City Recife has featured as a digital city

17 Oct

Recife had his Porto Digital launched in 2000 , especially in the magazines Wired and Bloomberg now has featured on BBC News, which still states that ” large international companies not met in Recife , but the steady growth of the hub … can be a salutary lesson . ”

After 13 years exporting products and services to the world , the center still has to overcome a barrier no amount of internet connections high speed can overcome , and according to the BBC News also geography .

The website of the British newspaper states that the distance between north and south remains, but that these investments can break this logic .

Now some technology companies in the Porto Digital , are opening offices in São Paulo as a way to expand, but to be the southern branch means that they will be commercially viable ( and available ) to potential customers , which still tend to be a little suspicious companies based Recife , explains the news .

Also according to the newspaper, Sergio Cavalcante , CEO of the Center for Recife Studies and PortoDigitalAdvanced Systems said : ” Truth be told , our market is not yet in Recife , not in our northern region’s in Sao Paulo, Rio de Janeiro and abroad. We are sending our CEOs to São Paulo , in fact , but our 200 companies are developing and headquartered here in Recife . they are based here , “said the CEO of the company established in 1996, which is the largest business in the digital port .

The highlight of the Porto Digital Reef can be an inspiration for future regional disparities and national development prospects, which is not only agrarian.


Google launches its intelligent Watch

16 Oct

Google may launch close to launching his watch Nexus still in October , he would come to compete withRelogios those already on the market: Galaxy Gear , smart watch from Samsung that uses the Android and the Sony SmartWatch , now in its second version .

The gadget Google enter the race wearing similar accessories , according to the website 9to5Google , the ad would still novelty in October .

According to the website , the search giant would be putting the finishing touches on your watch and what features would be the novelty of the product , such as resistant glass screen , buttons to ask questions such as voice features in smartphones .

Furthermore , an information “accidental ” that came on your phone could also be announced on the clock .

Features like time to get home alarms, calendar, emails, SMSes, etc. , could all be connected to the clock display

They are also working more battery life and Bluetooth 4.0 connectivity .

But there is no talk about the type of sensors and health monitoring functionality with aa Apple has rumored that he would be working .


The advantage of being visible

15 Oct

Facebook has decided to disable a privacy feature that allowed users to restrict who could find by searching their profiles within FaceInvisiblethe social network , while announcing a search engine competitor to Google (see note at O Globo) , so the question is visibility , unlike good movie ” the advantage of being invisible ” that discusses today’s teens .

Last year , many netizens had already disabled , but she allowed users to use them to bisbilhotas profiles and relationships in the social network without being known , is what makes many government agencies (see previous post ) .

The Facebook justified this removal percentage stating that ” single-digit ” of about 1.2 billion members who used the feature , but the fact is that this profile could be used for invasion of privacy , crimes and “security ” .

Users can continue to protect your privacy by limiting the public will have access to your posts ( just friends , certain groups or all users , for example) and can also prevent unwanted posts and give your opinion about negative campaigns that have invaded the network and also tags unwanted .

We remind users of the ” face” that can become invisible campaigns that denigrate the image of someone , or simply imprint fundamentalist nonsense , there is a tool on the side of each post to make these things invisible


Countries democracy on the Internet

14 Oct

A broaden study published by Freedom House, entitled Freedom in The World in 2013: Democratic BreakthroughsDemocraciaNoMundo in the Balance, shows the variations of democratic freedom with internet use varies in different countries, with highlights improvements in two countries that have made their “spring Arab “and highlight negative in countries where political struggle embarked on paths undemocratic.

It is a demonstration that the numerical and analytical Internet freedom correlates with democratic and indicates that the future free and democratic components will have the freedom to use this new medium that is the internet and its applications on the Web

The study shows that civil liberties have suffered setbacks last year also in Latin America, especially in Ecuador, Paraguay and Suriname.

But we can celebrate that a total of 90 countries can be considered truly free and democratic, an increase of three countries in relation to 87, 2011.

Worldwide, about 3 billion people, 43 percent of the population, has indeed all civil liberties, while 1.6 billion lived in countries where these freedoms are partially or almost completely limited.

This gives an index d remaining 34% who live in countries considered no liberties by Freedom House, which totals 2.3 billion people who suffer oppression in the world.

With a methodology that applies a three-pillar approach to capture the level of the Internet and freedom of ICT: barriers to entry, limits content and violations of user rights (surveillance, privacy and extra-legal harassment) content limits ( filtering and blocking content) and violations of user rights (includes up to prison).

The following table shows that advanced improvements in countries and countries that are declines:

Declines  Improvements 
Mali  46 Libya 35
Madagascar  23 Tunisia 35
The Gambia  20 Burma 21
Guinea-Bissau  20 Tonga 18
Bahrain  18  Egypt 13
Ukraine  16 Zimbabwe 13
Ethiopia  15 Guinea 11
Eritrea  10 Moldova 10
Rwanda  10 Côte d’Ivoire 9
Yemen  10  Georgia 9
Burundi  9 Thailand 9
Ecuador  9 Tanzania 8
Honduras  9 Montenegro 6
Sri Lanka  9 Sierra Leone 6

Crowdsourcing for studying languages

11 Oct

Do you want to learn English , or Italian languages ​​or fictitious speaking such as Dothraki , Na’vi or Klingon ? , you can Duaolingouse the Duolingo that uses crowdsourcing to learning.

Duolingo launched on Wednesday the Language Incubator , a tool that gives users the ability to collaboratively create language courses and make them available online .

Founded by entrepreneur and mathematician Guatemalan Luis von Ahn , Duolingo is free and aims to give the user a way that the knowledge gained can be used by the environment , using excerpts from texts of conversations learning as a way to “pay ” for course , and so each user becomes part of the employee and student learning following .

According to Terra , Duolingo still not a profitable but already has contracts with some translation companies were not disclosed .

The company arrived in Brazil this year , and the introduction of Chinese country with the largest population and largest number of users to become popular software quickly.


A curious problem of Big Data

10 Oct

Simon DeDeo a research in applied mathematics and complex systems of the Santa Fe Institute,MatematicaCriativa had a problem , as posted in Wired magazine .

He was collaborating on a new project to analyze data from the archives of the Old Bailey court in London criminal court central England and Wales 300 years . ”

But there were no clean data ( say structured ) as in a normal Excel spreadsheet format simple , including variables such as prosecution, trial and sentence in each case , but about 10 million words written over just under 200 000 trials .

How could analyze this data ? DeDeo question: ” It is not the size of the data set , it was difficult for patterns of large data size was quite manageable .” Was this enormous complexity and lack of formal structure that represented a problem for these ” big data ” that disturbed .

The paradigm of the research involved the formation of a hypothesis , decide precisely what it was intended to measure , then build a device to make this measurement accurately as possible , is not exactly like physics where you control variables and has a limited number of data.

Alessandro Vespignani , a physicist at Northeastern University , which specializes in harnessing the power of social networks to model disease outbreaks , the behavior of the stock market , the collective social dynamics , and electoral results , collected many terabytes of data networks social as Twitter , this approach can help treat texts written out of social networking .

Scientists like DeDeo Vespignani and make good use of this fragmented approach to the analysis of large data , but the mathematician at Yale University, Ronald Coifman says what is really needed is the large volume of data equivalent to a Newtonian revolution , comparing with the invention the calculation of the 17th century , which he believes is already underway .

Coifman says ” We have all the pieces of the puzzle – now how do we actually ride them ,” ie , we still have to move forward to address scattered data.


The more expensive minute

09 Oct

The news was revealed by a report from the ITU ( International Telecommunications Union ) , the UN ( United Nations ),AMinuteMobile released on Monday ( 07 ) , said minute of a call to a number in the same carrier leaves for U.S. $ 0 , 71 in Brazil , while the call for a different enterprises services costs U.S. $ 0.74 .

But corporatism responded , and according to the union bosses SindiTelebrasil ( National Union of Telephone Companies and Service Mobile and Personal ) one must consider the average of all plans (but do not tell that many plans are not encouraged ) and in this case the values ​​would be at $ 0.15, with tax ( U.S. $ 0.068) .

The union also said that this value has halved in the last five years , I do not remember any tariff reduction on any plan .

But I know and every Brazilian knows that the services ” on average ” are very bad , you need to switch operator all the time . is the most expensive of World .

See the price list of minutes in the countries, the same enterprise´s call :

Country Minute Costs in US$
Brazil 0,71
New Zealand 0,70
Switzerland 0,68
Greece 0,58
France 0,56
United Kingdon 0,56

Source ITU: Country Cost of minute U.S. $


The new map of the Internet World

08 Oct

Made to look like those of the first browsers maps of Earth, map of new Web browsers was done by two researchers from the Institute of the Internet at the University of Oxford in England .Mapa-Mundi

Mark Graham and Stefano De Stabbata created a new world-map showing the sites and tools more popular in several countries, the sizes of territories vary with the number of users by creating a situation territorial curious .

As expected Google is the largest territory in 62 countries , now that Facebook leads the number of visits is in 50 countries , while the Baidu search engine in China , is popular in just two countries , but the size of China has a vast territory and of course a large number of users .

There are niche markets, such as the newspaper Al – Watan , the most visited site by Palestinians , the e- mail service which is the most visited in Kazakhstan , the VK social network popular in Belarus and search engine Yandex which is the most popular site in Russia .

The news was published by the Daily Mail , and researchers cite as the source .


Berners – Lee supports DRM to html5

07 Oct

One of the strengths of Web formats is also becoming a standard for textual formats , the html5 , drmHTML5however to be a free format could be difficult to control the DRM ( Rights of copies ), but Tim Berners – Lee said that this can be controlled .

The news came out in Zdnet thus proposed extensions to encrypted media ( EME , Encrypted Media Extensions ) will be placed in the next HTML extensions due to criticism from various groups and activists on digital rights .
Earlier this year , 27 organizations , including the Electronic Frontier Foundation and the Free Software Foundation , considered the proposed specification above as “disastrous ” by claiming they would change HTML to encourage the use of DRM .

According to the CEO of the group : ” We do not walk to standardize DRM systems owners , but on the other hand we do not want it to be deleted from the Web platform .”

EME have a hook for audio , video and other content within the HTML , providing support for digital rights management within the HTML which would prevent unauthorized copies , for example, movie studios and musicians , and could even automatically remove Web content
The EME specification describes an application programming interface ( API ) that interact with a DRM-protected file as the media used , and a first version of an editor was published by the working group to draft a HTML editor , but not yet approved by the W3C consortium .

To facilitate the group is : ” a commitment to a set of open APIs that provide a standard framework to bring this content via plug -in , but does not wish to standardize the plug -in ” , so that the structure remains open to developers .

The idea is good because it gives the option to open a Web preserve the copyright, in what is most basic to the web is the new standard html5 .