Wednesday, August 20, 2008

session layer

The fifth layer of the OSI Reference Model is the session layer. The session layer is
responsible for initiating the setup and teardown of connections. To perform these
functions, the session layer must determine whether data stays local to a computer
alternatively, must be obtained or sent to a remote networking component. In the latter case,
the session layer initiates the connection.
The session layer is also responsible for differentiating among multiple network connections, ensuring that data is sent across the correct connection as well as taking data from a connection and forwarding it to the correct local application. The actual mechanics of this process, however, are implemented at the transport layer. To set up connections or tear down connections,
the session layer communicates with the transport layer. Remote Procedure Calls
(RPCs) are an example of a TCP/IP session protocol; the Network File System
(NFS), which uses RPCs, is another example of a protocol at this layer. The
session layer is also responsible for error reporting of any issues at the application,
presentation, and session layers and for implementing any type of class of service
(CoS) to give preference to some types of traffic or connections over others.

Friday, August 15, 2008

FILTER UNWANTED CONTENT IN ORKUT

Google’s social networking site Orkut has introduced what it describes as a “safety filter” that automatically filters out adult content such as sexually suggestive phrases or images. The filter has been introduced in India, and is turned on by default for users in the country. Google plans to introduce it in other countries in the next few weeks, said Rahul Kulkarni, product manager at Google India, on Thursday. The new filter screens for content that may not violate Orkut’s community standards for objectionable content, but which users may not want to see, Kulkarni said.
Orkut is offering the filter as there is always a gray area as to what is considered as unacceptable adult content, which will likely vary from country to country or from one household to another, Kulkarni said. Users have the option to turn off the filter, Kulkarni added. With the “Safety Filter” on, if users come across content such as photos or text that they may find unacceptable, they will receive a warning and the specific content will be replaced by special icons, according to a post on Wednesday on the Orkut blog (http://en.blog.orkut.com/) . No filter is fully accurate, so if users see a page that they think should be blocked, they have to flag it as usual and let Orkut know, according to the blog.
Orkut has been criticized and even sued in court in India not so much for sexually explicit content, but for political content, including communities on the site that criticize the country or some of its politicians. The filter in Orkut is however oriented to filtering out sexual content and not political content. Filtering political content is far more difficult as there is always a gray area as to when the filter would come in the way of freedom of speech, Kulkarni said..

Wednesday, August 13, 2008

10 steps to get traffic

These are some basic tips for traffic..

1. Create Google Sitemaps – that will help Google to index your pages better.
2. Add your site to DMOZ.ORG
3. Add your site to free search engines.
4. Publish your RSS Feeds
5. Add your site to free web directories with good page rank
6. Add your site to Digg, Reddit, and StumbleUpon
7. Use social networks to advertise your site
8. Create account in Technorati
9. Take participation in SEO Forums
10. Add your site with a relevant text to your forums’ signature.

Sunday, August 10, 2008

science fact

  1. Did you know that there are 206 bones in the adult human body and there are 300 in children (as they grow some of the bones fuse together).
  2. Flea’s can jump 130 times higher than their own height. In human terms this is equal to a 6ft. person jumping 780 ft. into the air.
  3. The most dangerous animal in the world is the common housefly. Because of their habits of visiting animal waste, they transmit more diseases than any other animal.
  4. Snakes are true carnivorous because they eat nothing but other animals. They do not eat any type of plant material.
  5. The world’s largest amphibian is the giant salamander. It can grow up to 5 ft. in length.
  6. 100 years ago: The first virus was found in both plants and animals.
  7. 90 years ago: The Grand Canyon became a national monument & Cellophane is invented.
  8. 80 years ago: The food mixer and the domestic refrigerator were invented.
  9. 70 years ago: The teletype and PVC (polyvinyl-chloride ) were invented.
  10. 60 years ago: Otto Hahn discovered nuclear fission by splitting uranium, Teflon was invented.
  11. 50 years ago: Velcro was invented.
  12. 40 years ago: An all-female population of lizards was discovered in Armenia.
  13. 30 years ago: The computer mouse was invented.
  14. 20 years ago: First test-tube baby born in England, Pluto’s moon, Charon, discovered.
  15. 10 years ago: First patent for a genetically- engineered mouse was issued to Harvard Medical School.
  16. 5 years ago: The first successful cloning of human embryo
  17. The smallest bone in the human body is the stapes or stirrup bone located in the middle ear. It is approximately .11 inches (.28 cm) long.
  18. The longest cells in the human body are the motor neurons. They can be up to 4.5 feet (1.37 meters) long and run from the lower spinal cord to the big toe.
  19. There are no poisonous snakes in Maine.
  20. The blue whale can produce sounds up to 188 decibels. This is the loudest sound produced by a living animal and has been detected as far away as 530 miles.

Thursday, August 7, 2008

Silambattam movie review


This is the movie which was awaited by most of the simbu fans.The dance done by the simbu was very exiting where he brokes his elbow while dancing. here is the review of the simbu's silambattam movie...
The movie is about the bad and the good which is exists in the society. Saravanan has carved the movie with much needed proficiency and has churned the messages out of it. Silambattam a movie which Simbu would do it because its just normal story which will attract mass which will retain him on the top the box office for a while. Music have come out very good so will be good enough to watch Simbu's dance in each and every song.The father simbu's chacter was very good in the movie.The film is total commercial based so dont expect anything just go to the theater without any exceptation then you will enjoy the movie

Tuesday, August 5, 2008

STRESSFUL LIFE CAUSE HEART PROBLEMS

There is a stressful life in each and everyones life which is cause by the bosses in the company. they become very moody in homes which causes problem.

Experts said that feeling undervalued and unsupported at work can cause stress, which often fosters unhealthy behaviours, such as smoking, that can lead to heart disease.

Previous work has shown that unfair bosses can drive up their employees’ blood pressure, and persistent high blood pressure can increase heart disease risk.

For the latest study, researchers from the Karolinska Institute and Stockholm University tracked the heart health of the male employees, aged between 19 and 70 and working in the Stockholm area, over a period of nearly a decade.

During this time 74 cases of fatal and non-fatal heart attack or acute angina, or death from ischaemic heart disease, occurred.

All the participants were asked to rate the leadership style of their senior managers on competencies such as how clearly they set out goals for their staff and how good they were at communicating and giving feedback.

The staff who deemed their senior managers to be the least competent had a 25% higher risk of a serious heart problem.

And those working for what was classed as a long time - four years or more - had a 64% higher risk.

The findings held true, regardless of educational attainment, social class, income, workload, lifestyle factors, such as smoking and exercise, and other risk factors for heart disease, such as high BLOOD PRESURE.

Sunday, August 3, 2008

FACT ABOUT CHOCOLATE

Chocolate is one of the most popular and yummiest types of foods that will likely stay at the top of most peoples favorite food lists. Chocolate is something most of us have grown up enjoying, but very few of us have taken the time to learn the many facts that are associated with Chocolate. There are actually hundreds of facts that are associated with Chocolate and I have created a list of the ones that I find most interesting.

1. It is a known fact that chocolate has caffeine in it. But did you know that you would have to eat more then a dozen chocolate bars to get the same amount of caffeine from a cup of coffee? There are about 5 to 10 mg’s of caffeine in one ounce of bitter chocolate, 5 mgs in milk chocolate, and 10mgs in a six-ounce cup of cocoa.

2. Chocolate is actually a valuable energy source. A single chocolate chip can provide enough energy for an adult human to walk 150 ft.

3. Chocolate has great health benefits. It helps with depression, high blood pressure, Tumors and Pre-menstrual syndromes.

4. Chocolate does not cause or aggravate acne, this is a myth.

5. One ounce of baking chocolate or cocoa contain 10% of the daily recommended intake of iron.

6. Chocolate can be deadly for dogs. Chocolate contains an ingredient called “Theobromine” which can be toxic to a dogs central nervous system and cardiac muscles.

7. People spend more than $7 billion dollars a year on chocolate.

8. The per capita consumption of chocolate indicates that each person consumes 12 pounds of chocolate each year.

9. Milk Chocolate is the most preferred type of chocolate, however dark chocolate is especially popular among men.

10. In Alfred Hitchcock’s movie “Psycho” chocolate syrup was used to indicate blood in the famous shower scene