Shared posts

18 Apr 06:01

Ужасное крушение поезда

Выживших нет..

19 Apr 12:02

Pues menos que en Cataluña, claro por @mellamanmulo


19 Apr 16:16

Thomas Piketty e o espírito do tempo

by Drunkeynesian
Piketty ontem na Harvard Kennedy School (foto roubada da Masoomeh Khandan) Desperto o blog da sonolência dos últimos meses para falar sobre o que todo mundo tem falado (o mundo como esse estranho lugar onde as pessoas debatem conceitos abstratos ligados a dinheiro e produção): o novo livro de Thomas Piketty, "Capital in the 21st Century", que deve roubar  de "Why Nations Fail" e "This Time Is
27 Mar 06:31

w-for-wumbo: niggas-: playerprophet: ohneooo: beast-of-joy: ...





















w-for-wumbo:

niggas-:

playerprophet:

ohneooo:

beast-of-joy:

“The concept is simple. Take a blank sheet with nothing but the basic outline of a pinup girl and illustrate a unique scene around her.”

holy FUCK.

I’ll probably always reblog this cuz it’s just mind-blowing, holy cow

15 Apr 13:51

Bitcoin hacks and thefts: The underlying reason

by Arvind Narayanan

Emin Gün Sirer has a fascinating post about how the use of NoSQL caused technical failures that led to the demise of Bitcoin exchanges Flexcoin and Poloniex. But these are only the latest in a long line of hacks of exchanges, other services, and individuals; a wide variety of bugs have been implicated. This suggests that there’s some underlying reason why Bitcoiners keep building systems that get exploited. In this post I’ll examine why.

Let’s step back for a minute and talk about how we keep buildings physically secure. Locks are the first thing that come to mind, but they’re only a small part of the picture. Physical security is not just preventive but also reactive and corrective. We have intrusion-detection systems and ways of going after criminals. In particular, stolen goods are difficult to convert into cash. In the absence of the state and the rule of law, locks by themselves would do little to keep buildings secure.

Software security is exactly like that. Keeping attackers out is only the first line of defense; companies spend as much on intrusion detection. As the Heartbleed bug demonstrates, we don’t have processes that will produce code that’s free of vulnerabilities given the practical constraints of software development. Relying on prevention alone, then, is simply not an option. But the extent to which practical security relies on detection over prevention may be surprising. For example, my colleague Joseph Bonneau has argued that authentication is becoming a machine learning problem. The upshot is that on many or most sites where security matters, stealing a password is not by itself sufficient to impersonate the user.

Perhaps most crucially for e-commerce, banks can reverse fraudulent transactions and law enforcement of digital financial crimes is relatively competent. As a result, stolen passwords and credit card numbers are worth only fractions of a penny on the dollar. Viewed in this context, the role of cryptography and access control is merely to raise the bar sufficiently for attackers so that the risk of getting caught combined with the diminished ability to monetize break-ins skew the economics in favor of the defender.

Bitcoin’s design destroys this delicate balance of prevention, detection, and correction, and puts the entire onus on preventive measures. [*] If an attacker breaks into a server containing private keys, he can steal the bitcoins immediately and irreversibly. Furthermore, a stolen bitcoin is still a bitcoin. [**] While there’s been talk of taint-tracking mechanisms to prevent thieves from cashing out, these haven’t materialized and there are fundamental technical and political difficulties with such proposals.

I suspect that developers of Bitcoin services who are responsible for security consistently and dramatically underestimate what it takes to build a secure Bitcoin service. Coding and operational practices that are perfectly adequate for building a typical e-commerce site turn out to be utterly inadequate for, say, a Bitcoin exchange. Going back to the lock analogy, developers think they need a door lock when in fact they need Fort Knox. And software security as a field has simply not matured to the point where we’re even capable of building systems that rely primarily on preventive technological mechanisms in the face of persistent, financially motivated adversaries.

This analysis suggests that Bitcoin businesses will continue to face a rocky future, considering that the state of software security will not improve overnight. This is why research into techniques like threshold cryptography is so important; these measures can help secure wallets even when the underlying environment is vulnerable. At the same time, perhaps the security needs of the Bitcoin ecosystem will finally provide the kick in the pants needed to improve coding practices, security reviews and audits, adversarial testing, and operational security to the point where we can build systems that are secure by design. If this happens, it will have a huge, lasting, positive impact on the overall state of Internet security.

[*] These differences seem to be largely inherent, but they can be mitigated a little bit by measures such as keeping bitcoins in cold storage.

[**] A recent paper led by Sarah Meiklejohn argues that it currently is difficult for thieves to launder large sums of bitcoins. If this changes, we can expect that the incentives will shift even further in favor of attackers.

Thanks to Joseph Bonneau and Ed Felten for reviewing a draft.

18 Apr 18:05

Rubbing Elbows

by Greg Ross

http://commons.wikimedia.org/wiki/File:Palais_Ferstel.jpg

Vienna’s Café Central was crowded with intellectuals at the turn of the 20th century, including Freud, Lenin, the Vienna Circle of logical positivists, and endless chessplayers.

When Victor Adler made the argument that war would provoke a revolution in Russia, Leopold Berchtold replied, “And who will lead this revolution? Perhaps Mr. Bronstein sitting over there at the Café Central?”

Mr. Bronstein was Leon Trotsky.

17 Apr 18:20

Shape Reference

by Greg Ross

thomas whales

The index to the fourth edition of George Thomas’ Calculus and Analytic Geometry contains an entry for “Whales” on page 188. That page contains no reference to whales, but it does include the figure above.

http://commons.wikimedia.org/wiki/File:Bessel-Hagen,Erich_1920_G%C3%B6ttingen.jpg?uselang=de

German mathematician Erich Bessel-Hagen was often teased for his protruding ears.

In 1923 his colleague Béla Kerékjártó published a book, Vorlesungen Über Topologie, whose index lists a reference to Bessel-Hagen on page 151.

That page makes no mention of Bessel-Hagen, but it does contain this figure:

2011-03-23-shape-reference-2

Is that libel?

26 Mar 18:26

Batman is real

18 Apr 02:07

O problema do IBGE: orçamento.

by mansueto

Passado um pouco a poeira, vou dar a minha opinião sobre essa confusão envolvendo o IBGE. Li que algumas pessoas falaram que o possível adiamento da PNAD contínua era fruto de intervenção política no órgão. A tese é que, pela PNAD contínua, a taxa de desemprego nacional era maior em cerca de dois pontos de percentagem da taxa da PME para regiões metropolitanas. Assim, o governo resolveu adiar a PNAD continua por ser ano eleitoral.

Tenho imensa dificuldade de acreditar nessa ou em outras teorias conspiratórias por vários motivos. Destaco aqui três. Primeiro, porque mesmo que a taxa de desemprego seja maior, a trajetória é de queda e, assim, não haveria porque o governo ter medo de um dado que lhe é francamente favorável.

Segundo, os gerentes do IBGE bem com a sua presidente são funcionários de carreira do órgão e de reconhecida competência por todos que olham para as estatísticas do IBGE. Assim, é difícil acreditar em aparelhamento do órgão dado os profissionais que estão na direção do IBGE.

Terceiro e mais simples, se olharmos rapidamente para o orçamento do IBGE podemos ver de forma clara que o órgão tem sido colocado em um regime de contenção orçamentária brutal e, isso sim, poderia ser uma boa explicação para o problema de ampliar as pesquisas do órgão com recursos limitados.

A tabela 1 abaixo traz o orçamento executado (valores pagos do ano mais restos a pagar pagos) atualizados para valores de março de 2014 do orçamento do IBGE. Com exceção de 2010, que foi um ano que o órgão fez a pesquisa do censo o que exige um forte aumento do seu orçamento, de 2009 a 2013, o orçamento do IBGE não aumentou um único centavo. Na verdade teve uma pequena queda, passou de R$ 1,99 bilhão, em 2009, para R$ 1,97 bilhão, em 2013.

 Tabela 1 – Execução do Orçamento do IBGE – R$ milhões de março de 2014

IBGE

Fonte: SIAFI. Elaboração: Mansueto Almeida

Se da tabela acima retirarmos a conta dos funcionários aposentados, gastos do órgão com inativo, o orçamento executado do IBGE passa de R$ 1,34 bilhão, em 2009, para R$ 1,23 bilhão, em 2013, uma queda real de 8%. Neste mesmo período, a despesa não financeira do Governo Central cresceu em termos reais R$ 207 bilhões (ver tabela 2 abaixo).

 Gráfico 1 – Execução do Orçamento do IBGE sem aposentados – 2009-2013 – R$ milhões de março de 2014

IBGE_2

 

Tabela 2 – Despesa Não Financeira do Governo Central – 2009-2013 -R$ milhões de março de 2014

Desp Primaria

Em resumo, o que aconteceu no IBGE me pareceu um bom retrato da falta de planejamento. Não do IBGE, mas talvez do Ministério do Planejamento e Casa Civil, que são os órgãos que fazem o planejamento da gestão pública e definem a proposta orçamentária para cada um dos órgãos de acordo com as prioridades estabelecidas pelo governo.

Novamente, de 2009 a 2013, a despesa não financeira do governo central cresceu em termos reais R$ 207 bilhões a valores de março deste ano. Algo como R$ 500 a R$ 600 milhões a mais por ano para o IBGE permitira aumentar a execução orçamentária (sem aposentados) do órgão em 50% !!!! Por que não fizemos isso? porque alguém decidiu que não era prioritário. Simples assim. Não são necessárias teorias conspiratórias.


Arquivado em:Economia Tagged: IBGE, orçamento, PNAD
18 Apr 16:00

Justo









Justo

18 Apr 20:00

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17 Apr 13:51

This Amazing Technicolor Castle has been Abandoned for more than 20 Years

by MessyNessy

castellosam1

Here on this corner of the internet, we see a lot of abandoned places. For some of them, we can even understand how circumstances might have led their abandonment. This however, is a head-in-hands kind of moment.

The Castello di Sammezzano is a show-stopper, a jaw-dropper. Hidden away in the Tuscan hills of Northern Italy, this electrifyingly beautiful Moorish castle was built a whopping 400+ years ago in 1605, but for more than two decades, it’s been sitting empty, neglected, vulnerable to vandalism and to the elements.

listri

(c) Massimo Listri

There are 365 rooms in the Castello di Sammazzano, one for every day of the year. The Moroccan-style palatial villa is a labyrinthe of exquisitely tiled rooms, each one intricately unique. Originally built by a Spanish noble, Ximenes of Aragon in the 17th century, it wasn’t until the 19th century that the castle would find its arabian identity and be transformed into the etherial palace it resembles today.

castellouraven

(c) Dan Raven

castellosam2

castellosam3

(c) Martino Zegwaard

Non plus ultra-3

(c) Darmé

This is all owed to its inheritor, Marquis Ferdinando Panciatichi Ximenes, a largely forgotten but key cultural, social and political figure in Florence when the city was the capital of Italy. Ferdinando, who lived and died at the property, spent 40 years planning, financing and realizing this exotic castle that would become the most important example of orientalist architecture in Italy– only to be left to ruin at the hands of modern-day investors.

Non plus ultra-74

After the Marquis’ death at the end of the 19th century, there was a period of uncertainty for the property and historical records appear to be rather patchy. During the war, the Germans came looting, stealing mainly from the castle’s surrounding park that had once been considered the largest and most exotic in Tuscany. They took many important statues and fountains of Moorish style, as well as an entire bridge and a grotto featuring a statue of Venus. When the war ended, the castle became a luxury hotel, restaurant and bar.

castellosam4

Unfortunately there appears to be no photographs of the villa during this period, I couldn’t even get the name of the hotel, which reportedly closed its doors in 1990. For a decade, it stood without a master of the house until 1999, when a British company ceremoniously bought the Castello di Sammezzano at auction. But still, the castello would remain unoccupied; it’s vaulted rooms and archways empty and unappreciated.

Non plus ultra-75

The plan for Sammezzano called for an 18-hole championship golf course and a large sports facility and clubhouse. But construction hadn’t yet begun when the investment company ran into “economic issues” and the castle was forgotten, left to fall into an extreme state of disrepair. The exterior damage by vandals and the weather is fairly evident. On the inside, many windows were broken, railings cut, chandeliers and rosettes stolen.

Non plus ultra-55

It wasn’t until 2013 that a local non-profit committee was founded to help raise awareness of the increasingly decaying castle. They have no ownership of Sammezzano but they help to arrange and promote public openings. And while the Comitato FPXA (after the initials of Ferdinando Panciatichi Ximenes of Aragon) has been doing their part, the property has been quietly sold to the global developer, Palmerston Hotel & Resorts.

Non plus ultra-57

On their website, the developer’s to-do list includes several worldwide projects, including the Castello Sammezzano, which they intend to develop into a “luxurious sporting resort, incorporating a boutique hotel, apartments, spa and country club with golf, tennis and various sporting amenities”. They have obtained all necessary planning approvals and claim redevelopment is scheduled to commence in 2014.

Non plus ultra-58

Another luxury hotel development might not be the fairytale ending we were necessarily waiting for, but here’s hoping this arabian castle will finally be restored to its former glory– and maybe they’ll let us come round for a mint tea under those otherworldly ceilings.

Non plus ultra-67

Stay tuned for updates on the Comitato FPXA facebook page

Images by urban exploration photographers Dan Raven / Darmé / Martino Zegwaard

The post This Amazing Technicolor Castle has been Abandoned for more than 20 Years appeared first on Messy Nessy Chic.

17 Apr 16:00

Photo



25 Feb 08:00

pitchforks

Adam Victor Brandizzi

Resumo da Revolução Francesa.

its_like_trying_to_stop_your_pee_midstream
16 Apr 20:00

silentgiantla: Animated artwork by Rebecca Mock Fine, detailed...









silentgiantla:

Animated artwork by Rebecca Mock

Fine, detailed and subtle animated artwork created by New York illustrator Rebecca Mock. Apparently the animated gif back to stay, gradually more and more people are exploring this old format and customers asking for shouting. Several of these illustrations were created for the New York Times or The Warlus magazine.

14 Apr 16:00

Physical-to-virtual is complete just before hardware dies

devopsreactions:

image

by _KaszpiR_

15 Apr 16:00

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15 Apr 17:51

Photo



15 Apr 20:00

labellefabuleuse: Miroslava Duma during Paris Fashion Week,...



labellefabuleuse:

Miroslava Duma during Paris Fashion Week, Fall 2014

28 Mar 00:00

Before the Internet

Adam Victor Brandizzi

Eu tentava encontrar padrões nos números de série para passar o tempo.

We watched DAYTIME TV. Do you realize how soul-crushing it was? I'd rather eat an iPad than go back to watching daytime TV.
13 Apr 07:54

Super-Homem: o entregador

10 Apr 20:48

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14 Apr 20:00

dancemetotheendofluv: flowy… pleated leather skirt



dancemetotheendofluv:

flowy…

pleated leather skirt

13 Apr 14:58

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15 Apr 09:00

Zelda Fitzgerald’s Little-Known Art

by Maria Popova

From Alice in Wonderland to Times Square, a delicate dance of the imagination.

When Zelda Sayre married legendary Jazz Age novelist F. Scott Fitzgerald to become Zelda Fitzgerald, she was anointed “the first American flapper” and embarked on one of the most turbulent relationships in literary history. Though best-remembered as a writer and dancer, Zelda, unbeknownst to many, not only considered herself an artist but was also an exceptionally gifted one. Her paintings place her among history’s famous writers with little-known talents in the visual arts, including Tolkien’s drawings, Sylvia Plath’s sketches, William Faulkner’s Jazz Age illustrations, and Flannery O’Connor’s cartoons.

Zelda: An Illustrated Life: The Private World of Zelda Fitzgerald (public library) collects 140 illustrations and 80 of her paintings from the late 1930s and 1940s, lovingly compiled by her granddaughter, the Vermont-based writer, filmmaker and artist Eleanor Anne Lanahan. From her cityscapes of New York City and Paris to her psychedelic Biblical allegories to her delicate paper dolls she made for her daughter Scottie, the art paints an intricate picture of her psychoemotional world and reflects her passion for fairy tales, her irreverent dance with the absurd, and her enormous sensitivity to beauty — a visual reflection of the blend of intense intelligence and unapologetic mischievousness that made Zelda so alluring.

Puppeufee (The Circus)

Brooklyn Bridge

Times Square

Central Park

Washington Square

Marriage at Cana

Hansel and Gretel

Great Smokey Mountains

The Pantheon and Luxemburg gardens

Star of Bethlehem

A lady and a costume from The Louis XIV set (paper doll)

Ladies' costume from The Louis XIV set (paper doll)

A lady and a costume from The Louis XIV set (paper doll)

But as a lover of Alice in Wonderland art, I was especially thrilled to see Zelda’s paintings for the Carroll classic:

Lobster Quadrille

The Queen’s Croquet-Ground

Advice from a Caterpillar

Who Stole the Tarts

A Mad Tea Party

Zelda: An Illustrated Life is an absolute delight from cover to cover. Complement it with the art of Norah Borges.

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13 Apr 14:55

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14 Apr 13:48

Entenda o ataque antissemita de um terrorista americano de 73 anos na véspera do Pessach

by Gustavo Chacra

Existe uma tendência equivocada de achar que todo o antissemitismo esteja associado a sentimentos anti-Israel e a extremistas islâmicos fanáticos, embora estes realmente existam. Mas o episódio de ontem em Kansas City, assim como centenas de outros ao redor do mundo todos os anos, inclusive no Brasil, se deveu pura e simplesmente ao ódio aos judeus.

O atirador, depois de preso, teria gritado “Heil Hitler”. E não, ele não era muçulmano, como muitos islamofóbicos gostariam que fosse apenas para terem mais uma oportunidade de atacar os muçulmanos. O terrorista (sim, usarei esta expressão) era um americano branco, supremacista, racista, cristão, membro de Ku Klux Klan e de 73 anos chamado Frazier Glenn Cross.

Existem pessoas que se tornam antissemitas por serem anti-Israel. Estas são mais comuns no mundo árabe. Existem pessoas que são anti-Israel por serem antissemitas. Estas são mais comuns na Europa. E existem pessoas que são antissemitas independentemente da posição que possuam em relação a Israel, pois também tendem a odiar os palestinos. Estes são os neonazistas europeus, americanos e mesmo no Brasil. Isto é, são antissemitas e islamofóbicos (e anti-árabes, pois em alguns casos não toleram cristãos do Oriente Médio) ao mesmo tempo.

Eu mesmo já ouvi de pessoas conhecidas que “judeus” e “libaneses” são os responsáveis por uma série de problemas do Brasil, como corrupção. Claro, estas pessoas, se ficarem doentes e tiverem condições, certamente tentarão se internar no Einstein ou no Sírio-Libanês. E não verão o menor problema em serem atendidos por um médico com sobrenome árabe ou judaico.

Enfim, triste escrever um post de antissemitismo no Pessach. Mas Boa Páscoa à comunidade judaica em São Paulo, Rio, Nova York, Israel, Irã e outras partes do mundo.

Apenas comentários do post do dia ou do post prévio serão publicados

Guga Chacra, comentarista de política internacional do Estadão e do programa Globo News Em Pauta em Nova York, é mestre em Relações Internacionais pela Universidade Columbia. Já foi correspondente do jornal O Estado de S. Paulo no Oriente Médio e em NY. No passado, trabalhou como correspondente da Folha em Buenos Aires

Comentários islamofóbicos, antissemitas, anticristãos e antiárabes ou que coloquem um povo ou uma religião como superiores não serão publicados. Tampouco ataques entre leitores ou contra o blogueiro. Pessoas que insistirem em ataques pessoais não terão mais seus comentários publicados. Não é permitido postar vídeo. Todos os posts devem ter relação com algum dos temas acima. O blog está aberto a discussões educadas e com pontos de vista diferentes. Os comentários dos leitores não refletem a opinião do jornalista

Acompanhe também meus comentários no Globo News Em Pauta, na Rádio Estadão, na TV Estadão, no Estadão Noite no tablet, no Twitter @gugachacra , no Facebook Guga Chacra (me adicionem como seguidor), no Instagram e no Google Plus. Escrevam para mim no gugachacra at outlook.com. Leiam também o blog do Ariel Palacios

13 Apr 16:00

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13 Apr 20:00

allcreatures: Picture: INA FASSBENDER/REUTERS (via Pictures of...



allcreatures:

Picture: INA FASSBENDER/REUTERS (via Pictures of the day: 27 March 2014 - Telegraph)

10 Apr 20:46

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