sábado, 15 de janeiro de 2011
DO IG - Videogame pode fazer bem à saúde
Qual é o milagre? Trata-se do grande número de estudos lançados nos últimos anos que mostram os benefícios do uso de videogames tanto para a educação de adolescentes, quanto para o auxílio em tratamentos de doenças de diversos tipos. Parece que cai aquela velha história de que os únicos efeitos que jogar videogame traz são fazer mal para vista, formar jovens violentos, sedentárias e distraídos.
Uma boa nova recente vem do instituto de pesquisas e desenvolvimento de técnicas para o uso terapêutico dos videogames, Health Games Research. De acordo com o estudo “Game Changer: Investing in Digital Play to Advance Children's Learning and Health”, feito pela organização, jogar durante a infância pode ser extremamente positivo para o desenvolvimento de habilidades que a criança levará para sempre em sua vida.
Exemplo: prestar atenção na história de cada jogo contribui para aumentar o vocabulário do jogador e sua habilidade de compreensão e comunicação; passar de fase em fase ajuda a criar um pensamento sistêmico na cabeça do gamer, que começa a considerar o impacto de cada ação na complexidade do todo; e, além disso, jogar videogame estimula a criatividade como poucas coisas conseguem. A despeito do que “os adultos” imaginam, mandar bem num jogo não é tarefa fácil, e para se dar bem nos desafios é preciso ser bastante inteligente.
Controle dos sonhosExercitar a reflexão e a criatividade é bacana. Mas a história começa a ficar interessante mesmo quando pesquisadores ao redor do mundo passam a utilizar os consoles, por exemplo, para recuperar pacientes diagnosticados com transtornos mentais, auxiliar no tratamento de doenças da visão e traumas físicos, inspirar professores a dar aulas mais interessantes e até para ajudar você a ter mais controle sob sua mente e seus sonhos.
Isso mesmo. Segundo estudo realizado pela Grant MacEwan University, gamers de alta freqüência – tipo, os mais viciados – têm capacidade de relatar seus sonhos com lucidez e detalhamento, bem como de controlar suas ações dentro do mundo fantástico do sono, conseguindo tanto participar ativamente quanto apenas vislumbrar seus sonhos como mero observador. Entre as pessoas que não jogam videogame frequentemente, a capacidade de detalhamento e controle dos sonhos é muito menor.
Como são muitos estudos (e para que você tenha argumentos o suficiente quando quiser bater uma lutinha no seu UFC, ou quem sabe golear naquela partidinha de Winning Eleven antes da janta), separamos 14 pesquisas que mostram que os consoles podem trazer, sim, benefícios para a saúde – ou que dá para inventar games muito úteis à humanidade. Embora continue valendo aquela regra preciosa, que se aplica a quase qualquer coisa na vida: em exagero, tudo faz mal.
quarta-feira, 15 de dezembro de 2010
DA UOL - Senhas mais usadas no Gawker eram “123456” e “password”. Sério!
Lá do Wall Street Journal.
Imagem: Reprodução/Wall Street Journal.
Tags: gawker, hackers, senhas
quinta-feira, 2 de dezembro de 2010
Battling Cyber Threats
December 03, 2010
Computer security experts say the United States faces a radical shortage of highly skilled cybersecurity professionals who can prevent and combat such attacks. One federal official has estimated that there are only 1000 cybersecurity experts in the United States who have the deep technical knowledge required to safeguard national security; tens of thousands are needed, he believes.
Careers in Cybersecurity
Cybersecurity is one of a handful of areas scientists can work in where job opportunities far outnumber the number of job seekers. For a profile of one cybersecurity training program, see the companion article Becoming 'MacGyvers.'Content and context
The need for cybersecurity professionals has grown rapidly, along with the growth in data networks in banking, telecommunications, health care, transportation, law enforcement, energy, emergency response systems, and national defense, among other areas. Meanwhile, the number of American students entering science and engineering has declined. In most fields of science, that decline has been offset by an influx of foreign scientists. But the decline is especially troublesome in cybersecurity because so many high-level cybersecurity jobs require American citizenship and an ability to obtain security clearance.What's needed most, Paller says, is people with sophisticated technical skills and experience in areas such as system design, software security, digital forensics, computer engineering, and cryptography. "We have way too many people who call themselves cybersecurity people, people who might have written a report about cybersecurity, or done a risk assessment, or passed a test," he says. "We need the people who can actually reset the firewall settings so that they block attacks; the people who can configure software safely; the people who can find errors in software; people who can do the forensics to find evidence of malicious activity. It's like the difference between a hospital administrator and a doctor: they're all in health care, but they're not all doctors."
Agnes Chan, co-director of Northeastern University's Institute for Information Assurance, says there is an equally strong need for people who combine technical expertise with training in risk management and policy. She notes that many cybersecurity positions, especially those that involve risk analysis and policy work, require both a computer scientist's technical proficiency and a social scientist's understanding of human behavior and how it can affect security. "It is not easy to find students that are strong in both," Chan says.
Ample jobs
Such shortages translate into abundant opportunity for computer scientists, engineers, mathematicians, and other scientists who pursue a career in cybersecurity. The National Security Agency (NSA) plans to hire 1000 cybersecurity professionals in the next year. The Department of Homeland Security (DHS) has more than tripled its cybersecurity workforce in the past 2 years. The Department of Defense (DOD), which employs more cybersecurity professionals than any other federal body, is hiring aggressively, as are many other federal and state agencies.There is at least as much demand for high-level cybersecurity professionals in the private sector, which controls almost 85% of the United States's critical infrastructure. "There's a bubble that's going to hit, and the need for cybersecurity people is going to really escalate in the future," says Richard "Dickie" George, technical director of NSA's Information Assurance Directorate. "More and more, industry is going to realize that the long-term viability of the country depends on this protection."
"If you're good, you're going to have dozens of job offers," says Sujeet Shenoi, director of the University of Tulsa's Cyber Corps Program, which is widely regarded as one of the strongest and most intense in the United States. "I can't produce the students fast enough. I graduate about 35 students a year, and even if I were to quadruple it, I wouldn't be able to fill the demand." Lance Hoffman, director of George Washington University's (GW's) Partnership in Securing Cyberspace through Education and Service (PISCES) program, says students there have fared equally well, enjoying 100% job placement since 2002.
Cybersecurity professionals who work in operational settings -- that is, who actually battle cyber attacks -- spend their days writing secure software and designing networks. Some do "penetration testing," hacking into their own organization's defenses to expose weaknesses an enemy might exploit. Others specialize in digital forensics, deconstructing cyber attacks to understand their origins and purpose. Still others create educational programs or work on policy questions, such as how to balance security and privacy, and how to address security breaches in the context of international law.
Research opportunities, too, are growing. All the federal security agencies and many large companies have research arms devoted to developing cybersecurity technologies and finding more effective ways to educate users so that they don't compromise computer systems. Appreciation -- and funding -- for basic research on information security is expanding, says Benjamin Cook, cyber-enterprise capabilities manager at Sandia National Laboratories in Albuquerque, New Mexico. He notes, however, that blue-sky research positions are "few and far between."
In recent meetings, cybersecurity experts identified a number of research priorities. One is the development of mathematically rigorous ways of establishing that hardware or software, or a computer system, is trustworthy. "In the industrialized world, we've kind of bet the bank on this technology," Cook says. "If we can't develop a rigorous and fundamental ability to establish trust in these systems, we're inching out onto thin ice." Other priorities include understanding phenomena of complex networks such as malware propagation and new models of cybersecurity based on biological concepts such as biodiversity and immunity. Some promising areas of research, Cook notes, may be especially suited to scientists with a multidisciplinary bent.
Getting your hands dirty
The main routes into high-level operational and research positions in cybersecurity are the 125 university-based cybersecurity training programs designated by NSA and DHS as Centers of Academic Excellence (CAEs) in information assurance education and research. These programs are eligible to apply for scholarship funding for undergraduates and graduate students through two federal programs: the National Science Foundation's Federal Cyber Service: Scholarship for Service (SFS) program and DOD's Information Assurance Scholarship Program (IASP). The SFS and IASP programs fund students for up to 2 years of undergraduate or graduate training in cybersecurity in return for an equivalent period of government service, either to DOD (for IASP awardees) or to other federal agencies (for SFS awardees). "It's like ROTC for geeks," says Hoffman.Like other cybersecurity training programs around the country, the CAE programs draw students from computer science, engineering, math, statistics, forensic sciences, criminal justice, business administration, public policy, law, education, and the social sciences. Although computer science is fundamental to cybersecurity research and practice, there is plenty of opportunity for scientists in other fields to apply their interests to cybersecurity issues -- and no need to start over. Graduate students or postdocs in fields such as math, physics, and biology tend to be competitive applicants to CAE programs, although they may have to spend some time developing their computer science knowledge. To understand whether their career goals require taking a couple of courses or spending a few years getting more training, scientists should first figure out what aspect of cybersecurity they're interested in, says Diana Burley, a professor of human and organizational learning who teaches in GW's PISCES program.
Different cybersecurity training programs have different emphases, as a listing of SFS-funded programs reveals. Some concentrate on policy and risk management, some on forensic investigation, others on behavioral aspects of cybersecurity, and still others on research and interdisciplinary training. The best programs combine deep training in core subjects such as computer security, network protocols, or cryptography with significant hands-on experience. "Just being able to solve today's problem isn't enough," says NSA's George. "You need to be able to train yourself to solve the problems that will come 5 or 10 years from now. Then you also need enough hands-on laboratory work doing things like reverse engineering, forensic investigation, and penetration testing that will enable you to solve today's problems. That's a very difficult balancing act."
"This stuff can't be done completely in an abstract setting," agrees Ernest McDuffie, who leads the National Initiative for Cybersecurity Education, a multiagency effort coordinated by the National Institute of Standards and Technology. "You can't do it with a chalkboard -- you need to get your hands dirty."
For those with useful skills but without the specific degree, Paller suggests a "back door" into the field: Volunteer or get a part-time job with your university's computer support service; then, after a semester or two, migrate to doing security support. "That's where you'll learn the skills that will put you in line for the jobs that most need filling," Paller says. Doing cutting-edge work in cybersecurity requires knowing three things: programming, networks and protocols, and operating systems. Academic credentials aren't what's needed, he says. What's needed are people with the skills the best scientists possess: "It's people who are extraordinarily good at taking things apart and seeing how they're made. It takes being hungry to get to the bottom of things."
quarta-feira, 1 de dezembro de 2010
Revendas da Apple abrirão a partir da meia-noite de sexta para vender iPad
DO IG
Confira a lista das 11 lojas em todo o Brasil que começarão a vender o tablet durante a madrugada de 3 de dezembro
Versão mais barata do iPad custará R$ 1.649
| Getty Images |
| Em abril de 2010, americanos enfrentaram fila para comprar iPad no dia do lançamento |
Além da Fnac, as lojas Fast Shop e A2You (do Shopping Iguatemi), além da MyStore (do Shopping Villa-Lobos) e a Saraiva (Shopping Higienópolis), também estarão abertas para vender o aparelho no mesmo horário.
Em outras cidades, também haverá lojas abertas no horário especial para vender o tablet. É o caso da iPlace, presente em Belo Horizonte (MG), Florianópolis (SC) e Porto Alegre (RS); da iTown em Salvador (BA) e no Rio de Janeiro (RJ); e da CTIS em Brasília (DF).
Os interessados no iPad também poderão comprar o aparelho em outras revendas autorizadas e lojas de varejo a partir de 3 de dezembro. O produto também estará disponível para compra pela internet, na loja online da Apple
sexta-feira, 29 de outubro de 2010
VISÃO HOLISTICA
terça-feira, 5 de outubro de 2010
domingo, 26 de setembro de 2010
Today I will make a difference.
I will be grateful for the twenty-four hours that are before me. Time is a precious commodity. I refuse to allow what little time I have to be contaminated by self-pity, anxiety, or boredom. I will face this day with the joy of a child and the courage of a giant. I will drink each minute as though it is my last. When tomorrow comes, today will be gone forever. While it is here, I will use it for loving and giving. Today I will make a difference.
I will not let past failures haunt me. Even though my life is scarred with mistakes, I refuse to rummage through my trash heap of failures. I will admit them. I will correct them. I will press on. Victoriously. No failure is fatal. It's OK to stumble...I will get up. It's OK to fail...I will rise again. Today I will make a difference.
I will spend time with those I love. My spouse, my children, my family. A man can own the world but be poor for the lack of love. A man can own nothing and yet be wealthy in relationships. Today I will spend at least five minutes with the significant people in my world. Five quality minutes of talking or hugging or thanking or listening. Five undiluted minutes with my mate, children, and friends.
Today I will make a difference.
quarta-feira, 22 de setembro de 2010
Do site da Mcafee - Por Jeff Green
terça-feira, 7 de setembro de 2010
ANTEBELLUM
Security is a process, not a product. Products provide some protection, but the only way to effectively do business in an insecure world is to put processes in place that recognize the inherent insecurity in the products. The tick is to reduce your risk of exposure regardless of the products or patches. Bruce Shneier
Apesar do tempo disposto pelo PCI - Council em relação a 2012, uma implementação PCI leva pelo menos 2 anos para que os projetos em SI sejam planejados, adequados e implementados em uma corporação.
Em conversa com um especialista em São Paulo, este me informou que um ano e meio é muito pouco para implementação de tal projeto, mesmo por que corporações que estão começando a se adequar devem rever politicas internas, utilizar uma analise de impacto buscando os GAPs para depois iniciar um planejamento e futuro implemento. Quando vemos os 2 anos em implementos, muitas vezes dependendo-se de areas correlatas, o projeto não sai e ao inves de solucionar o problema, cria-se mais barreiras para que processos onde projetos fossem terminados com sucesso não finalizem.
Ora, Corporativismo é uma palavra onde junta-se pessoas, processos e padrões que impulsionam uma organização a um unico objetivo: o sucesso.
Um mestre me disse uma vez:
"Quem quer fazer alguma coisa, encontra um meio."
"Quem não quer fazer nada, encontra uma desculpa. "
Roberto Shinyashiki
e não é a toa que postei aqui um artigo dele ja ha algum tempo...... VAMOS AO TRABALHO.....
Wladimir
CRIMES DIGITAIS
BILL GATES
BCM - PCN
“As empresas mais bem sucedidas são aquelas que sempre possuem um plano B”
JAMES YORKE - Mathematician, on chaos theory in The New Scientist
Um Meio ou uma Desculpa
Não conheço ninguém que conseguiu realizar seu sonho, sem sacrificar feriados e domingos pelo menos uma centena de vezes, da mesma forma, se você quiser construir uma relação amiga com seus filhos, terá que se dedicar a isso, superar o cansaço, arrumar tempo para ficar com eles, deixar de lado o orgulho e o comodismo. Se quiser um casamento gratificante, terá que investir tempo, energia e sentimentos nesse objetivo. O sucesso é construido à noite! Durante o dia voce faz o que todos fazem. Mas, para obter um resultado diferente da maioria, voce tem que ser especial. Se fizer igual a todo mundo, obterá os mesmos resultados, não se compare à maioria, pois infelizmente ela não é o modelo de sucesso. Se voce quiser atingir uma meta especial, terá que estudar no horario em que outros estão tomando chopp com batatas fritas. Terá de planejar, enquanto os outros permanecem à frente da televisão. Terá que trabalhar enquanto os outros tomam sol à beira da piscina. A realização de um sonho depende de dedicação. Ha muita gente que espera que o sonho se realize por mágica, mas toda mágica é ilusão, e a ilusão não tira ninguem de onde está. Em verdade a ilusão é o combustível dos perdedores, pois....
"Quem quer fazer alguma coisa, encontra um meio."
"Quem não quer fazer nada, encontra uma desculpa. "
Roberto Shinyashiki