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Saturday, April 13, 2013

how to Boost Brainpower


Have you ever noticed that some people are able to effortlessly remember even the most mundane details, and quickly comprehend new things, and wished that you too could be like that?  Well, you can.  To unlock the full potential of your brain, you need to keep it active and acute.  Wasting away on your couch watching mindless television shows is not going to help.  Besides getting out flashcards, what can you do to help remember things better and learn new things more quickly?  Check out these tips:
  1. Exercise & get your body moving – exercising doesn’t just exercise the body, it also helps to exercise your brain.  Obesity and the myriad of diseases that eventually set in as a result of being overweight can cause serious harm to the brain.  Furthermore, without regular exercise plaque starts to build up in your arteries and your blood vessels begin to lose the ability to effectively pump blood.  Plaque buildup leads to heart attacks, but it also reduces the amount of oxygen and nutrients that your blood carries to your brain.  When the nutrients don’t make it there, the brain’s ability to function is compromised.  To prevent this from happening, make sure you get moving every day, even if its just a brisk walk, it’ll help you maintain and increase your mental accuity. Brisk walking , swimming and dancing are all excellent activities.
  2. Eliminate stressors and seek help for depression (if you have it). Anything that causes you major stress, like anger or anxiety, will in time begin to eat away at the parts of your brain that are responsible for memory.  Amongst the most brain-damaging stressors is depression, which is actually often misdiagnosed a a memory problem since one of its primary symptoms is the inability to concentrate.  If you can’t concentrate, then you might feel like you are constantly forgetting things. Depression increases the levels of cortisol in your bloodstream, which elevates the cortisol levels in the brain.  Doctors have found that increased cortisol diminishes certain areas of the brain, especially the hippocampus, which is where short-term memories are stored.  Prolonged depression can thus destroy your brain’s ability to remember anything new.  Seek professional help to combat your depression – your brain will thank you.
  3. Get a good night’s sleep and take naps. Getting a consistent 7 to 8 hours of sleep each night will increase your memory. During sleep, the brain firms up memories of recently acquired information and getting enough sleep will help you get through the full spectrum of nocturnal cycles that are essential to optimal brain and body functioning during the waking hours.  Taking a nap throughout the day, especially after learning something new, can also help you to retain those memories as well as recharge your brain and keep it sharper longer.
  4. Write it down. If there’s something you want to remember, writing it down can help.  Writing it down creates oxygenated blood flow to areas of your brain that a responsible for your memories and literally exercises those parts of it.  You can start a journal, write yourself e-mails, or even start keeping a blog – all of these activities will help to improve your capacity to remember and memorize information.
  5. Listen to music. Research shows that certain types of music are very helpful in recalling memories.  Information that is learned while listening to a particular song or collection can often be recalled by thinking of the song or “playing” it mentally.  Songs and music can serve as cues for pulling up particular memories.
  6. Feed your brain. 50 to 60 percent of the brain’s overall weight is pure fat, which is  used to insulate its billions of nerve cells.  The better insulated a cell is, the faster it can send messages and the quicker you will be thinking.  This is precisely why parents are advised to feed their young children whole milk and to restrict dieting – their brains’ need fat to grow and work properly.  Skimping on fats can be devastating even to the adult brain.  Thus, eating foods that contain a healthy mix of fats is vital for long-term memory.  Some excellent food choices include fish (especially anchovies, mackerel and wild salmon) and dark leafy green vegetables.  Deep-fried foods obviously contain fat, but their lack of nutritional value is going to help your brain or your body, so think healthy foods and fats.
  7. Visual concepts. In order to remember things, many people need to visualize the information they are studying.  Pay attention to photographers, charts and other graphics that might appear in your textbook, or if you’re not studying a book, try to pull up a mental image of what it is you are trying to remember.  It might also help to draw your own charts or figures, or utilize colors and highlighters to group related ideas in your notes.
  8. Teach someone else. Reading material out loud has been shown to significantly improve memory of the material.  Expanding further upon this idea is the fact that psychologists and educators have found that by having students teach new concepts to others, it heps to enhance understanding and recall.  Teach new concepts and information to a friend or study partner, and you’ll find you remember the information a lot better.
  9. Do crossword puzzles, read, or play cards. Studies have shown that doing either of these activities on a daily basis not only keep your brain active, but also help to delay memory loss, especially in those who develop dementia.  So pick up the daily newspaper and work on that crossword puzzle, read a book, or enjoy a game of solitaire.
  10. Eat breakfast and make sure it includes an egg. Accrording to Larry McCleary, M.D., author of  The Brain Trust Program, an egg is the ideal breakfast.  Eggs contain B vitamins, which help nerve cells to burn glucose, antioxidants that protect neurons against damage, and omega-3 fatty acids that keep nerve cells firing at optimal speed.  Other foods to add to your breakfast include fruits, veggies and lean proteins.  Avoid trans fats and high fructose corn syrup.  Trans fats diminish the brain cells’ ability to communicate with eachother, and HFCS can actually shrink the brain by damaging cells.  Having a healthy breakfast in the morning has been shown to improve performance throughout the day.

Stack In Data Structure with algoritham


Stack is one of the Linear data structure (Non-primitive data structure).  In stack, Insert Operation & delete Operation are performed at one end i.e. on the top of the stack.
Stack is the linear data structure having collection of elements which follows LIFO (Last In First Out) pattern i.e. element which comes last is served first.
One of the best applications where stack can be viewed is, Shipment in Cargo. For the shipment of goods, they have to be loaded into a cargo. While for unloading they are unloaded  in opposite sequence of  loading. That is, the last goods loaded should be unloaded first.
In stack Insert operation is known as PUSH and deletion is known as POP and the position of the stack where these operations are performed is known as TOP of the stack.
Operations on STACK :
Basic operations required to manipulate a stack are:
PUSH : To insert an item into the stack
POP : To remove an item from a stack.
PEEP : To find ith element from stack.
CHANGE : To change ith element from stack.
Initially top of the stack is zero as there is no element in stack, top is incremented by one as element is added to stack i.e. PUSH Operation and top is decremented by one when element is deleted from stack i.e. POP operation.
Application of Stack :
1. Recursion
2. Polish expressions and their compilation
3. Stack machines
Let us see Pseudo code or Algorithm of each stack operation.
PUSH Operation
PUSH (S, TOP, X)
Step – 1: [Check for Stack overflow]
If TOP > N then
Write (‘Stack Overflow’)
Return
Step – 2 : [Increase value of TOP]
TOP <- TOP + 1
Step – 3 : [Insert element into stack]
S[Top] <- X
Step – 4: [Finished]
Return
POP Operation
POP(S, TOP)
Step – 1: [Check for Stack Underflow]
If TOP == 0 then
Write (‘Stack Underflow’)
Return
Step – 2 : [Decrease value of TOP]
TOP <- TOP – 1
Step – 3 : [Return top element of stack]
Return S[Top + 1]
PEEP Operation
PEEP(S, TOP, i)
Step – 1: [Check for Stack Underflow]
If TOP- i +1 < 0 then
Write (‘Stack Underflow For PEEP’)
Return
Step – 2 : [Return ith element from top of stack]
Return S [Top – i + 1]
CHANGE Operation
Change(S, TOP, i, X)
Step – 1: [Check for Stack Underflow]
If TOP- i +1 < 0 then
Write (‘Stack Underflow on Change’)
Return
Step – 2 : [Change ith element from top of stack]
S[Top – i + 1] <- X
Step – 3 : [Finished]
Return

Google Chromebook Pixel Touch Screen Laptop


In this era of competition and technology we are often offered higher and higher Resolution screen and touch and lots of new features day by day. This time world’s one of the largest company Google has launched a new laptop in market to give the completion to its rivals. The name of this product is “Chromebook Pixel Touch screen Laptop”.
Chromebook Pixel Touch screen Laptop is HD (High Definition) touchscreen laptop launched by Google. This laptop is run under chrome operating system.
Let us see the features of this new amazing Chromebook Pixel Touch screen Laptop.
Available Model 
The laptop has two versions : one is  basic model, has WiFi only and another has LTE(Long Term Evolution) Model which is more expensive and which can connect to super-fast LTE network of Verizon.
Gorilla Glass multi-touch screen
This Chromebook Pixel Touch screen Laptop has Gorilla Glass touch screen as its cover glass. As Gorilla glass is best for touch screen and make it more lighter and thinner and having qualities like hardness, strength, scratch & impact resistant and it can be recycled also. This glass material (consists of combine material named alkali + aluminosilicate) is manufactured by the US company named Corning and it has registered trademark to Gorilla glass.
Display and Resolution 
It has 12.85 inch touch screen with aspect ratio of 3:2 which gives you more vertical space and it is not like traditional one . Resolution of Google Chromebook Pixel Touch Screen Laptop is 2560 x 1700 at 239 PPI (Pixels Per Inch) i.e. screen density is 239 pixels per-inch. This amazing laptop has viewing angel of  178 degree andbrightness of 400 nit.
With this Google has tried to provide an extreme high resolution display and more bright laptop than anyother laptops available in market.
Weight and Size 
Weight of  this laptop is 1.52 kilograms with size of 297.7 × 224.6 × 16.2 mm.
Processor
This laptop has  CPU or Processor of ’Intel Core i5 (‘Dual-Core 1.8 GHz’)’ and integrated GPU (Graphical Processing Unit) of ‘Intel HD Graphics 4000’.
Memory and Storage
IT has DDR3 RAM of 4 GigaByte. (DDR – Double Data Rate)
It has two type of storage, one of 32 GB Solid state (Electronic Disk) for WiFi model and another 64 GB Solid state for LTE(Long Term Evolution) Model.
It also provide 1 TB (terabyte) storage on Google Drive cloud for 3 years.
It gives 12 sessions in GoGo Internet (GoGo gives user broadband internet service in flight)
More Features
>> Camera : This amazing Chromebook Pixel Touch screen Laptop has integratedHD camera with 720p.
>>  Keyboard : It has Backlit keyboard (i.e. This keyboard gets light from behind the keys so one can work in dark night also.) and also has clickable and etched (imprinted)  glass touchpad.
>> Bluetooth : It provides Bluetooth 3.0
>> Speakers : Having Integrated Stereo speakers with DSP (Digital Signal Processing) for cancellation of noise.
>> Microphone : It has 3 built in microphones and Combo headphone – mic jack
>> Battery : Provides good battery life with active or typical use of 5 hours.
>> WiFi : This laptop has Wi-Fi with Dual band 802.11a /802.11b/ 802.11g/802.11n
>> Ports : This laptop has 2 port of USB 2.0 with that has MMC/ SD card reader and one port for mini display for external Monitors.
>> Price : The price of Chromebook Pixel Laptop for WiFi model is $1299 (Rs.7000) and price of LTE model is $1449 (Rs. 8000)

How To Create Apple ID On iPhone, iPad, iPod touch


  1. Tap Settings, and then tap iTunes & App Stores.
    • (If an Apple ID is already signed in, tap the Apple ID name, and then tap Sign Out.) 
    • Tap Create New Apple ID.
Create New Apple ID

2) Choose a country or region for the store that will match the billing address for your payment method, then tapNext.
Apple ID Terms and Conditions

3)Agree to the Terms and Conditions by tapping the Agree.

Agree To term And Conditions

4) Tap Agree again when the confirmation appears

5) Enter an email address, password, and choose three security questions and provide answers to them, and then tap Next.

Apple ID and Password

6) Enter your billing information and then tap Next.

Billing Information

7) You will now see a screen that says Verify Your Account. Tap Done.

Verify Apple ID account

8) Now check your email for a verification email from Apple. Open the email, and tap the Verify Now link enclosed in the email to activate your account.

9) Sign in with your current Apple ID and password, then click Verify Address.