मित्रों!

आप सबके लिए “आपका ब्लॉग” तैयार है। यहाँ आप अपनी किसी भी विधा की कृति (जैसे- अकविता, संस्मरण, मुक्तक, छन्दबद्धरचना, गीत, ग़ज़ल, शालीनचित्र, यात्रासंस्मरण आदि प्रकाशित कर सकते हैं।

बस आपको मुझे मेरे ई-मेल roopchandrashastri@gmail.com पर एक मेल करना होगा। मैं आपको “आपका ब्लॉग” पर लेखक के रूप में आमन्त्रित कर दूँगा। आप मेल स्वीकार कीजिए और अपनी अकविता, संस्मरण, मुक्तक, छन्दबद्धरचना, गीत, ग़ज़ल, शालीनचित्र, यात्रासंस्मरण आदि प्रकाशित कीजिए।


समर्थक

शनिवार, 12 अप्रैल 2014

आरोग्य कुंजी और ख़बरें प्रोद्योगिकी से जुड़े खतरों की

आरोग्य कुंजी और ख़बरें प्रोद्योगिकी से जुड़े खतरों की 

(१)गुणकारी है अंडे की जर्दी (एग यलो ,सन साइड आफ दी एग )क्योंकि यह विटामिन D से युक्त रहती है। अंडा खाने का पूरा फायदा तभी मिलेगा जब आप पूरा अंडा खाएंगे -एगवाइट और एगयलो दोनों। 

(२) कमज़ोर नस आ गई है इन्फ़्ल्युएन्ज़ा विषाणु की :

ACHILLE'S HEEL OF INFLUENZA HAS BEEN DISCOVERED 

Researchers have claimed to have discovered that influenza has an Achille's heel .The study reveals that a drug that inhibits a molecule called prostaglandin E2 (PGE2) increases survival rates in mice infected with a lethal dose of the H1N1 flu virus .The study appears in Cell Press.

(3 ) करेला बीज  आम तौर पर लोग फैंक देते हैं खासकर जब करेला पक जाता है जबकि करेले के बीज कम तिक्तता लिए होते हैं। धमनियों तथा अन्य महीन रक्त नालियों को अवरुद्ध करने वाली चर्बी को जलाते हैं। 

(4 ) COPPER DRUGS CAN BLOCK CANCER GROWTH 

Drugs that reduce copper uptake could suppress growth of some cancers ,including melanoma ,by straving the tumours cells , a study in the journal Nature claims.The researchers found that cancers with a gene mutation required copper to grow .

Melanoma (Listeni/ˌmɛləˈnmə/; from Greek μέλας melas, "dark")[1] is a malignant tumor of melanocytes.[2] Melanocytes produce the dark pigment, melanin, which is responsible for the color of skin. These cells predominantly occur in skin, but are also found in other parts of the body, including the bowel and the eye (see uveal melanoma). Melanoma can originate in any part of the body that contains melanocytes.

Melanoma is less common than other skin cancers. However, it is much more dangerous if it is not found in the early stages. It causes the majority (75%) of deaths related to skin cancer.[3] Worldwide, doctors diagnose about 160,000 new cases of melanoma yearly. In women, the most common site is the legs and melanomas in men are most common on the back.[4] It is particularly common amongCaucasians, especially northern Europeans and northwestern Europeans living in sunny climates. There are higher rates in Oceania, North America, Europe, Southern Africa, and Latin America,.[5] This geographic pattern reflects the primary cause, ultraviolet light(UV) exposure[6] crossed with the amount of skin pigmentation in the population.[7][8]
According to a WHO report, about 48,000 melanoma-related deaths occur worldwide per year.[9]
The treatment includes surgical removal of the tumor. If melanoma is found early, while it is still small and thin, and if it is completely removed, then the chance of cure is high. The likelihood that the melanoma will come back or spread depends on how deeply it has gone into the layers of the skin. For melanomas that come back or spread, treatments include chemo- and immunotherapy, orradiation therapy.

(5 )दौड़ाक कृपया नोट करें आपके ख़ास जूतों के शाक एब्जॉर्बर्स 

आपके ४५० किलोमीटर दौड़ लेने के बाद बदल दिए जाने चाहिए क्योंकि 

इनकी शोक ज़ज़्ब करने की क्षमता कमतर रहजाति है इतना दौड़ने के 

बाद।


(6) ऐसे व्यायाम जिनमें आक्सीजन खपत बढ़  जाती है 

(aerobics)दिमाग के अपविकासी रोग (neuro -degenrative disease

 ,मसलन अल्ज़ाइमर्स )के बढ़ते जाने की रफ़्तार को थाम लेते हैं। बोध 

ह्रास (संज्ञानात्मक क्षमताओं का छीज़ना ),याददाश्त क्षय आदि भी कम 

होने के खतरे और रफ़्तार कम हो जाती है नियमित एअरोबिक 

एक्सर्साइज़ (aerobic exercise ,aerobics)करते रहने से।  


(7 )Heartbleed bug: What you need to 


know


This week it has emerged that a major security flaw at the heart of the internet may have been exposing users' personal information and passwords to hackers for the past two years.
It is not known how widely the bug has been exploited, if at all, but what is clear is that it is one of the biggest security issues to have faced the internet to date.
Security expert Brue Schneier described it as "catastrophic". "On the scale of one to 10, this is an 11."
The BBC has attempted to round up everything you need to know about Heartbleed.

The bug exists in a piece of open source software called OpenSSL which is designed to encrypt communications between a user's computer and a web server, a sort of secret handshake at the beginning of a secure conversation.
It was dubbed Heartbleed because it affects an extension to SSL (Secure Sockets Layer) which engineers dubbed Heartbeat.
It is one of the most widely used encryption tools on the internet, believed to be deployed by roughly two-thirds of all websites. If you see a little padlock symbol in your browser then it is likely that you are using SSL.
Half a million sites are thought to have been affected.
In his blog chief technology officer of Co3 Systems Bruce Schneier said: "The Heartbleed bug allows anyone to read the memory of the systems protected by the vulnerable versions of the OpenSSL software. This compromises the secret keys used to identify the service providers and to encrypt the traffic, the name and passwords of the users and the actual content," he said.
"This allows attackers to eavesdrop communications, steal data directly from the services and users and to impersonate services and users," he added.
The bug is so serious it has its own website Heartbleed.com which outlines all aspects of the problem.

What is the Heartbleed bug?Do I need to change my passwords?
Some security experts are saying that it would be prudent to do so although there is a degree of confusion as to when and if this needs to be done.
Many of the large technology firms including Facebook and Google have patched the vulnerability.
Confusingly though Google spokeswoman Dorothy Chou specifically said: "Google users do not need to change their passwords." A source at the firm told the BBC that it patched the vulnerability ahead of the exploit being made public and did not believe that it had been widely used by hackers.
Some point out that there will be plenty of smaller sites that haven't yet dealt with the issue and with these a password reset could do more harm than good, revealing both old and new passwords to any would-be attacker.
But now the bug is widely known even smaller sites will issue patches soon so most people should probably start thinking about resetting their passwords.
"Some time over the next 48 hours would seem like sensible timing," the University of Surrey's computer scientist Prof Alan Woodward told the BBC.
Mikko Hypponen of security firm F-Secure issued similar advice: "Take care of the passwords that are very important to you. Maybe change them now, maybe change them in a week. And if you are worried about your credit cards, check your credit card bills very closely."

How do I make sure my password is robust?

The exploit was not related to weak passwords but now there are calls for a mass reset of existing ones, many are reiterating the need to make sure they are as secure as possible.
People should regularly change their passwords, said Prof Woodward, and they need to make sure that they choose something that does not relate to themselves, such as a pet's name. Words that don't appear in a dictionary are preferable as is a mixture of words and numbers.
For people whose attitude to passwords is to reset them each time they visit a site because they have forgotten them, there is help on hand.
Tools are now widely available that will store and organise all your passwords and PIN codes for computers, apps and networks. They can also generate passwords and can automatically enter your username and password into forms on websites.
Such tools store your passwords in an encrypted file that is accessible only through the use of a master password. Examples of such services include KeePass, LastPass and 1Password.
Some firms are starting to offer alternatives to passwords.
Mobile firms including Apple and Samsung are integrating fingerprint-readers which allow users to access their phone and certain functions on it just by swiping their finger on the screen.

Which sites are affected?

There are half a million believed to be vulnerable so too many to list but there is a glut of new sites offering users the chance to check whether the online haunts they use regularly are affected.
The LastPass website has compiled a list as has new websiteMashable. Meanwhile security firm Kaspersky directs people to theHeartbleed test.
While Facebook and Google say that they have patched their services, according to the Kaspersky blog, there is a long list of sites that are still vulnerable, including Flickr, OkCupid and Github.
One of the biggest tech firms remaining on the vulnerable list was Yahoo but, as of last night, it too seemed to have remedied the problem saying it "had made the appropriate corrections across our entire platform".
Many more sites will spend the coming days scrambling to do the same.
Bruce Schneier called on internet companies to issue new certificates and keys for encrypting internet traffic. Doing so would render stolen keys useless, he said.
The bad news, according to a blog from security firm Kaspersky is that "exploiting Heartbleed leaves no traces so there is no definitive way to tell if the server was hacked and what kind of data was stolen".
Security experts say that they are starting to see evidence that hacker groups are conducting automated scans of the internet in search of web servers using OpenSSL.
And Kaspersky said that it had uncovered evidence that groups believed to be involved in state-sponsored cyber-espionage were running such scans shortly after news of the bug broke.
line break
Why has the problem only just come to light?

The bug was first spotted by Google Security and a Finnish security 

firm Codenomicon which said that it was introduced by a 

programming error.


Because OpenSSL is open source, researchers were able to study 

the code in detail which is why it was found in the first place.

But such code libraries are immensely complex so it can take some 

time for those who routinely examine the code to come across such 

problems.

"It was such an unexpected problem that it wasn't something that 

researchers would necessarily have been looking for," Prof 

Woodward told the BBC.


line break
Is the bug connected to revelations 


about US and UK 


government snooping?
There is no direct evidence although lots of speculation 

that there is a link after details emerged that the National 

Security Agency (NSA) explored ways to break 

encryption.

GCHQ simply said it had a "longstanding policy that we 

do not comment on intelligence matters".

And many seemed to think that the problem was down to 

bad code rather than anything more sinister.

"More of a cock-up than a conspiracy," said Prof 

Woodward, who has undertaken consultancy work for 

GCHQ.

Everything you need to



 know about the 



Heartbleed bug




SUMMARY

There isn't much that people can do to protect themselves from the Heartbleed bug until the affected websites implement a fix.

Millions of passwords, credit card numbers and other personal information may be at risk as a result of a major breakdown in Internet security revealed earlier this week.

The damage caused by the “Heartbleed” bug is currently unknown. The security hole exists on a vast number of the Internet’s Web servers and went undetected for more than two years. While it’s conceivable that the flaw was never discovered by hackers, it’s nearly impossible to tell.
There isn’t much that people can do to protect themselves until the affected websites implement a fix.
Here are answers to some common questions about Heartbleed and how you can protect yourself:

Q: What is Heartbleed and why is it a big deal?
A: Heartbleed affects the encryption technology designed to protect online accounts for email, instant messaging and e-commerce. It was discovered by a team of researchers from the Finnish security firm Codenomicon, along with a Google Inc. researcher who was working separately.
It’s unclear whether any information has been stolen as a result of Heartbleed, but security experts are particularly worried about the bug because it went undetected for more than two years.
Q: How does it work?
A: Heartbleed creates an opening in SSL/TLS, an encryption technology marked by the small, closed padlock and “https:” on Web browsers to show that traffic is secure. The flaw makes it possible to snoop on Internet traffic even if the padlock is closed. Interlopers can also grab the keys for deciphering encrypted data without the website owners knowing the theft occurred.
The problem affects only the variant of SSL/TLS known as OpenSSL, but that happens to be one of the most common on the Internet.
Q: So if the problem has been identified, it’s been fixed and I have nothing to worry about. Right?

A: It depends on the website. A fixed version of OpenSSL has been released, but it’s up to the individual website administrators to put it into place.
Yahoo Inc., which has more than 800 million users around the world, said Tuesday that most of its popular services — including sports, finance and Tumblr — had been fixed, but work was still being done on other products that it didn’t identify.
Q: So what can I do to protect myself?

A: Ultimately, you’ll need to change your passwords, but that won’t do any good until the sites you use adopt the fix. It’s also up to the Internet services affected by the bug to let users know of the potential risks and encourage them to change their passwords.

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