Monday, August 24, 2015

Run 2 Whatsapp Accounts In Same Android Phone (Still Working)

Dual WhatsApp Account [NO ROOT]


Run 2 Whatsapp Accounts: Today i will show you how can you install 2 whatsapp accounts in single android Phone and run 2 whatsapp accounts. Whatsapp tricks are much popular these days, one of them is Dual Whatsapp account these days I am 100% Sure you have tried many methods for install 2 whatsapp and you didn’t got success yet, Don’t worry, with this guide you will able to run multiple whatsapp accounts in same android phone. So i searched a lot about installing dual/multiple whatsapp accounts in same android phone and finally today i got a solution for this.

2 Whatsapp in single android phone


For Use Multiple accounts in your android phone some guides needs root, which is not suitable method for all android users, with this guide you can install dual whatsapp accounts in your android phone without rooting it. Whatsapp is now biggest source of Sending text messaging via android phone, Mobile phones are coming with dual sim feature too, so why not install 2 whatsapp accounts in same android phone

Dual Whatsapp Method: Let’s enjoy this awesome feature.  Whatsapp is now biggest and popular messaging app with 700 million active users. Some of the users wants to run dual whatsapp accounts in their android phones, If you have tried OG Whatsapp method then it will give you obsolute error, So here i am sharing a method to run multiple whatsapp accounts without Og Whatsapp Method.


Features Of his Dual Whatsapp App


  • No Root Needed
  • No Obsolute Error like Og Whatsapp
  • Working Smooth
  • Calling Feature Preactivated
  • Material Design

Requirements for Run Dual Whatsapp in Single Android Phone


  • Android Phone
  • Works With Rooted and Non Rooted Both Phones.
  • Internet Connection
  • Common Sense for Understand This Easy Guide

Steps To Install 2 WhatsApp Account in Same Android Phone


  • At First Download WhatsMapp app from here –  WhatsMapp  Direct Link
  • Now Just Install WhatsMapp  app in your Phone which you have downloaded from Above Step
  • After Install WhatsMapp  app Open It
  • Now Enter Your Old Whatsapp Account Number In It, Which you have already Using in Original Whatsapp
  • After That it Will Verify your Number
  • Now You Have your Real Whatsapp Account in WhatsMapp  app.
  • After that Clear Data of Original Whatsapp.
  • Open Real Whatsapp
  • Create New Account in It which you want to use Second account
  • Now Verify your New Number and you are Done
  • Now your Phone Is Running Two Whatsapp Accounts in Same Android Phone Without any Problems.

Monday, August 10, 2015

20 Tips To Use Google Search Efficiently

Millions of people use Google search every day for a variety of reasons. Students use it for school, business people use it for research, and millions more use it for entertainment. Did you know that you may not be using Google search to its full potential? Here are 20 tips and tricks to maximize your search efficiency.

1. Use the tabs


The first tip is to use the tabs in Google search. On the top of every search are a number of tabs. Usually you’ll see Web, Image, News, and More. Using these tabs, you can help define what kind of search you need to do. If you need images, use the Image tab. If you are looking for a recent news article, use the News tab. It’s rudimentary and most people use the tabs already. If you are not, then it’s highly recommended to get associated with them. They can cut search times dramatically if utilized properly.

2. Use quotes


When searching for something specific, try using quotes to minimize the guesswork for Google search. When you put your search parameters in quotes, it tells the search engine to search for the whole phrase. For instance, if you search for Puppy Dog Sweaters, the engine will search for content that contains those three words in any order. However, if you search “Puppy Dog Sweaters”, it will search for that phrase exactly as you typed it. This can help locate specific information that may be buried under other content if not sorted out correctly.

3. Use a hyphen to exclude words


Sometimes you may find yourself searching for a word with an ambiguous meaning. An example is Mustang. When you Google search for Mustang, you may get results for both the car made by Ford or the horse. If you want to cut one out, use the hyphen to tell the engine to ignore content with one of the other. See the example below.

  • Mustang -cars
This tells the search engine to search for mustangs but to remove any results that have the word “car” in it. It can be wildly helpful when finding information about something without getting information about something else.

4. Use a colon to search specific sites


There may be an instance where you need to Google search for articles or content on a certain website. The syntax is very simple and we’ll show you below.

  • Sidney Crosby site:nhl.com
This will search for all content about famous hockey player Sidney Crosby, but only on NHL.com. All other search results will be removed. If you need to find specific content on a particular site, this is the shortcut you can use.

5. Find a page that links to another page


This Google search tip is a little obscure. Instead of searching for a specific page, you’re searching for a page that links to a specific page. Think about it this way. If you want to see who cited a New York Times article on their site, you would use this trick to find all the sites that link to it. The syntax is below.

  • link:nytimes.com
That will return all pages that link to the New York Times official website. The URL on the right side can be practically anything. Be aware, though, that the more specific it is, the fewer results you’ll get. We know not a lot of people will likely use this Google search trick, but it could be very useful for some.

6. Use the asterisk wildcard


The asterisk wildcard is one of the most useful ones on the list. Here’s how it works. When you use an asterisk in a search term on Google search, it will leave a placeholder that may be automatically filled by the search engine later. This is a brilliant way to find song lyrics if you don’t know all the words. Let’s look at the syntax.

  • “Come * right now * me”
To you or me, that may look like nonsense. However, Google search will search for that phrase knowing that the asterisks can be any word. More often than not, you’ll find they are lyrics to The Beatles song “Come Together” and that’s what the search will tell you.

7. Find sites that are similar to other sites


This is a unique one that could be used by practically everyone if they knew it existed. Let’s say you have a favorite website. It can be anything. However, that website is getting a little bit boring and you want to find other websites like it. You would use this trick. Below is the syntax.

If you search that above, you won’t find a link to Amazon. Instead, you’ll find links to online stores like Amazon. Sites like Barnes & Noble, Best Buy, and others that sell physical items online. It’s a powerful Google search tool that can help you find new sites to browse.

8. Use Google search to do math


As a college student, I can attest that I use this one rather frequently. Google search can actually do math for you. This is a rather complex one to describe because it can be used in so many ways. You can ask it basic questions or some more difficult ones. It is important to note that it won’t solve all math problems, but it will solve a good number of them. Here are a couple of examples of the syntax.

  • 8 * 5 + 5
  • Planck’s Consant
If you search the first one, it’ll return 45. It will also show a calculator that you can use to find answers to more questions. This is handy if you need to do some quick math but don’t want to do it in your head. If you search the second term, it will return the number value of Planck’s Constant. So it can do math, but it can also help you solve math problems by showing values for known mathematical terms.

9. Search for multiple words at once


Google search is flexible. It knows you may not find what you want by searching only a single word or phrase. Thus, it lets you search for multiples. By using this trick, you can search for one word or phrase along with a second word or phrase. This can help narrow down your search to help you find exactly what you’re looking for. Here is the syntax.

  • “Best ways to prepare for a job interview” OR “How to prepare for a job interview”
By searching that, you will search both phrases. Remember the quotes tip above? It’s being used here as well. In this instance, these two exact phrases will be searched. It can be done by word too, like the example below.

  • chocolate OR white chocolate
This will search for pages that have either chocolate or white chocolate!

10. Search a range of numbers


Searching for a range of numbers is another tip we don’t anticipate a lot of people using. The people that do use it, though, will probably use it quite a bit. People interested in money or statistics will find this tip particularly useful. Essentially, you use two dots and a number to let Google search know you’re looking for a specific range of numbers. Like the syntax below.

  • What teams have won the Stanley Cup ..2004
  • 41..43
In the first instance, the search will toss back the team that won the Stanley Cup in 2004. The two dots with only one number will tell the search that you don’t need anything before or after 2004. This can help narrow down searches to a specific number to improve search results. In the second, Google will search for the numbers 41, 42, and 43. It is obscure, but wildly useful if you happen to need to search for numbers like this.

11. Keep it simple


Now we’re getting into the general tips. Google search knows how to search for a lot of things. What this means is you don’t need to be too specific. If you need a pizza place nearby, use this to search.

  • Pizza places nearby
Google search will grab your location and deliver a variety of results about pizza places that are near you.

12. Gradually add search terms


There will come a time when Google search doesn’t shovel out the results you expect. In this instance, keeping it simple may not be the best option. As Google itself suggests, the best method is to start with something simple then gradually get more complicated. See the example below.

  • First try: job interviews
  • Second try: prepare for job interviews
  • Third try: how to prepare for a job interview
This will gradually refine the search to bring you fewer, more targeted terms. The reason you don’t go straight from the first try to the third try is because you may miss what you’re looking for by skipping the second step. Millions of websites phrase the same information in a number of different ways; using this technique lets you search as many of them as possible to find the best info.

13. Use words that websites would use


This is a very important one. When people use Google search to hunt the web, they generally search for things using the same language that they would use for speaking. Unfortunately, websites don’t say things the way people do; instead, they try to use language that sounds professional. Let’s look at some examples.

  • “I have a flat tire” could be replaced by “repair a flat tire.”
  • “My head hurts” could be replaced by “headache relief.”
The list goes on and on. When searching, try to use terminology you would find on a professional website. This will help you get more reliable results.

14. Use important words only


The way Google search works is to take what you search for and match it with keywords in online content. When you search for too many words, it may limit your results. That means it may actually take you longer to find what you’re looking for. Thus, it is apropos to use only the important words when searching for something. Let’s see an example.

  • Don’t use: Where can I find a Chinese restaurant that delivers.
  • Instead try: Chinese restaurants nearby.
  • Or: Chinese restaurants near me.
Doing this can help Google find what you need without all the clutter. So remember, keep it simple and use important words only.

15. Google search has shortcuts


A number of commands can be entered to give you instantaneous results. Like the math example above, Google can immediately give you the information you need that is displayed right at the top of the search results. This can save time and effort so you don’t have to click a bunch of bothersome links. Here are a few examples of some commands you can enter into Google.

  • Weather *zip code* – This will show you the weather in the given zip code. You can also use town and city names instead of area codes, but it may not be as accurate if there are multiple area codes in the city.
  • What is *celebrity name* Bacon Number – This is a fun little one that will tell you how many connections any given celebrity has to famed actor Kevin Bacon. The popular joke, Six Degrees of Kevin Bacon, is that no actor is more than 6 connections away from Kevin Bacon. Mark Zuckerberg has a Bacon Number of 3.
  • The math example posted above is another one.
  • What is the definition of *word* or Define: *word* – This will display the definition of a word.
  • Time *place* – This will display the time in whatever place you type in.
  • You can check any stock by typing its ticker name into Google. If you search for GOOG, it will check the stock prices for Google.
These quick commands can take a web search that is usually multiple clicks and condense it into a single search. This is very helpful for information you need repeatedly.

16. Spelling doesn’t necessarily matter


Google search has gotten a lot smarter over the years. These days, you don’t even need to spell words correctly. As long as it’s pretty close, Google can usually figure out what it means. Here are some examples.

  • If you search “Nver Gna Gve Yo Up” Google will automatically assume you mean to search for “Never Gonna Give You Up.” If by chance your misspelling was intentional, Google gives you the option to search for the misspelled term instead.
This trick is great if you happen to forget how to spell something or are not altogether sure how something is spelled. It can also be helpful when searching for obscure words. This applies to capitalization and grammar as well.

17. Use descriptive words


Pretty much everything can be described in multiple ways. Take our namesake, the “life hack.” The terminology “hack” refers to a computer programmer breaking security on a network or system. However, when used in conjunction with the word “life”, it alters the meaning to tips and tricks people can use to improve their lives. If you have trouble finding what you’re searching for, keep in mind that people may search or define what you need in a different way than you do.

  • You may search “How to install drivers in Ubunut?”
  • When you really mean “Troubleshoot driver problems Ubuntu.”
There really isn’t a good specific example for this one. If you search for something and you can’t find an answer, try asking the same question using different words and see if that helps the results.

18. Find a specific file


An often forgotten feature of Google search is the ability to search for a specific file or file type. This can be infinitely useful if you need a specific PDF or PowerPoint file that you previously viewed or need to use for another project. The syntax is quite simple.

  • *Search term here* filetype:pdf
In the above example, you simply replace the search term with whatever you’re searching for. Then use the filetype command and enter the extension of any file type you can think of. This can mostly be useful for scholarly purposes, but business presentations and other assorted presentations can benefit from this kind of search as well.

19. Money and unit conversions


Google search can quickly and accurately convert both measurement units and currency value. There are a variety of uses for this, like checking to see the conversion rate between two currencies. If you happen to be a math student, you can use it to convert from feet to meters or from ounces to liters. Here’s how to do it.

  • miles to km – This will convert miles to kilometers. You can put numbers in front to convert a certain number. Like “10 miles to km” will show you how many kilometers are in 10 miles.
  • USD to British Pound Sterling – This will convert a US dollar to British pounds. Like the measurements above, you can add numbers to find exact conversions for a certain amount of money.
It’s true that this tip is geared toward math students and international business people. However, you’d be surprised how often these tips are used by regular people.

20. Track your packages


Our last trick is to use Google search to find out where your packages are. You can enter any UPS, USPS, or Fedex tracking number directly into the Google search bar, and it’ll show you the tracking information about your package. This is much easier than going to the specific sites, waiting for them to load, then searching for your packages there. No examples are really needed for this one. Just type your tracking number in and see where your package is.

Google Search wrap-up


Google search is a very powerful search tool. Using the tips outlined above, you can find anything and everything you could ever need on the World Wide Web. Whether it’s avoiding Wikipedia for a school essay project, finding the latest stock prices, or even finding song lyrics, there is a way to make Google search work for you.

Wednesday, July 29, 2015

List of scientists whose names are used as SI units

Source: Wikipedia

List of scientists whose names are used as SI units is the list of those scientists whose names are assigned as the names of the international units by the International Committee for Weights and Measures. The International System of Units (abbreviated SI from French: Système international d'unités) is the most widely used system of units of measurement. There are seven base units and 22 derived units[1] (excluding compound units). These units are used both in science and in commerce. Two of the base units and 17 of the derived units are named after scientists.[2] By this convention, their names are immortalised. Below is the list of the scientists whose names are used as SI units.


Base unit[Note 1] Derived unit

(colour legend)


Name[3][4] Life Nationality Quantity[5] SI unit[Note 2] Image
André-Marie Ampère[6] 1775–1836 French Electric current [7] ampere (A)
(Base unit)
Ampere Andre 1825.jpg
William Thomson, 1st Baron Kelvin[8] 1824–1907 British (Scottish) Thermodynamic temperature[9] kelvin (K)
(Base unit)
Lord Kelvin photograph.jpg
Blaise Pascal[10] 1623–1662 French Pressure[11] pascal (Pa) Blaise pascal.jpg
Isaac Newton[12] 1643–1727 British (English) Force[13] newton (N) GodfreyKneller-IsaacNewton-1689.jpg
Anders Celsius[14] 1701–1744 Swedish Temperature[15] degree Celsius (°C) Anders Celsius.jpg
Charles-Augustin de Coulomb[16] 1736–1806 French Electric charge[17] coulomb (C) Charles de coulomb.jpg
James Watt[18] 1736–1819 British (Scottish) Power[19] watt (W) Watt James von Breda.jpg
Alessandro Volta [20] 1745–1827 Italian Electric potential[21] volt (V) Volta A.jpg
Georg Simon Ohm[22] 1789–1855 German Electrical resistance[23] ohm (Ω) Ohm3.gif
Michael Faraday[24] 1791–1867 British (English) Capacitance[25] farad (F) Michael Faraday 001.jpg
Joseph Henry[26] 1797–1878 American Inductance[27] henry (H) Joseph Henry (1879).jpg
Wilhelm Eduard Weber[28] 1804–1891 German Magnetic flux[29] weber (Wb) Wilhelm Eduard Weber II.jpg
Ernst Werner von Siemens [30] 1816–1892 German Conductance[31] siemens (S) Ernst Werner von Siemens.jpg
James Prescott Joule[32] 1818–1889 British (English) Energy[33] joule (J) Joule James Jeens engraving.jpg
Antoine Henri Becquerel[34] 1852–1908 French Radioactivity[35] becquerel (Bq) Becquerel Henri photograph.jpg
Nikola Tesla [36] 1856–1943 Serbian[Note 3]-American Magnetic flux density[37] tesla (T) Tesla3.jpg
Heinrich Rudolf Hertz[38] 1857–1894 German Frequency[39] hertz (Hz) Heinrich Rudolf Hertz.jpg
Rolf Maximilian Sievert[40] 1896–1966 Swedish Dose equivalent of radiation[41] sievert (Sv) Rolf Sievert 1896-1966.jpg
Louis Harold Gray [42] 1905–1965 British (English) Absorbed dose of radiation[43] gray (Gy)

Napier and Bell


Napier and decibel are two dimensionless units used to define relative amplitudes in logarithmic scales.[Note 4] They are not SI units, but their usage together with SI units is permitted.

Name Life Nationality Quantity Unit Image
John Napier[44] 1550–1617 British (Scottish) Magnitude (natural logarithmic) [45] neper (Np) John Napier (Neper).jpg
Alexander Graham Bell[46] 1847–1922 British (Scottish)-American Magnitude (common logarithmic)[47] bel (B) Alexander Graham Bell.jpg

See also


Friday, July 24, 2015

21 Golden Electric Safety Rules

Rule no. 1
Avoid contact with energized electrical circuits. Please don’t make fun of this rule if you already know this (and you probably already know if you are reading these lines) and remember that if something bad occurs – you probably won’t have second chance. That’s not funny.


Rule no. 2
Treat all electrical devices as if they are live or energized. You never know.


Rule no. 3
Disconnect the power source before servicing or repairing electrical equipment.
The only way to be sure.


Rule no. 4
Use only tools and equipment with non-conducting handles when working on electrical devices.
Easy to check.


Rule no. 5
Never use metallic pencils or rulers, or wear rings or metal watchbands when working with electrical equipment. This rule is very easy to forget, especially when you are showing some electrical part pointing with metallic pencil.
Always be aware.


Rule no. 6
When it is necessary to handle equipment that is plugged in, be sure hands are dry and, when possible, wear nonconductive gloves, protective clothes and shoes with insulated soles.
Remeber: gloves, clothes and shoes.

Safety clothes, gloves and shoes
Safety clothes, gloves and shoes


Rule no. 7
If it is safe to do so, work with only one hand, keeping the other hand at your side or in your pocket, away from all conductive material. This precaution reduces the likelihood of accidents that result in current passing through the chest cavity.
If you ever read about current passing through human body you will know, so remember – work with one hand only.
If you don’t clue about electric current path through human body, read more in following technical articles:


Rule no. 8
Minimize the use of electrical equipment in cold rooms or other areas where condensation is likely. If equipment must be used in such areas, mount the equipment on a wall or vertical panel.


Rule no. 9
If water or a chemical is spilled onto equipment, shut off power at the main switch or circuit breaker and unplug the equipment.
Very logical. NEVER try to remove water or similar from equipment while energized. Afterall, it’s stupid to do so.


Rule no. 10
If an individual comes in contact with a live electrical conductor, do not touch the equipment, cord or person. Disconnect the power source from the circuit breaker or pull out the plug using a leather belt.
Tricky situation, and you must be very calm in order not to make the situation even worse.
Like in previous rules – Always disconnect the power FIRST.

Always disconnect the power FIRST
Always disconnect the power FIRST


Rule no. 11
Equipment producing a “tingle” should be disconnected and reported promptly for repair.


Rule no. 12
Do not rely on grounding to mask a defective circuit nor attempt to correct a fault by insertion of another fuse or breaker, particularly one of larger capacity.


Rule no. 13
Drain capacitors before working near them and keep the short circuit on the terminals during the work to prevent electrical shock.


Rule no. 14
Never touch another person’s equipment or electrical control devices unless instructed to do so.
Don’t be too smart. Don’t try your luck.


Rule no. 15
Enclose all electric contacts and conductors so that no one can accidentally come into contact with them.
If applicable do it always, if not be very carefull.


Rule no. 16
Never handle electrical equipment when hands, feet, or body are wet or perspiring, or when standing on a wet floor.
Remeber: Gloves and shoes


Rule no. 17
When it is necessary to touch electrical equipment (for example, when checking for overheated motors), use the back of the hand. Thus, if accidental shock were to cause muscular contraction, you would not “freeze” to the conductor.


Rule no. 18
Do not store highly flammable liquids near electrical equipment.


Rule no. 19
Be aware that interlocks on equipment disconnect the high voltage source when a cabinet door is open but power for control circuits may remain on.
Read the single line diagram and wiring schemes – know your switchboard. 


Rule no. 20
De-energize open experimental circuits and equipment to be left unattended.


Rule no. 21
Do not wear loose clothing or ties near electrical equipment. Act like an electrical engineer, you are not on the beach.


Example of human stupidity and ignorance of basic safety

Electrical safety, come on… I guess we’ll never know did the cord extension drop into water… Hope not.

Example of stupidity
Example of stupidity
Source:http://electrical-engineering-portal.com/21-safety-rules-for-working-with-electrical-equipment

Do You Understand What Is Electric Shock?

 

Electric shock danger sign
Electric shock danger sign

Introduction

Electric current passing through the body, particularly alternating current at power frequencies of 50 Hz and 60 Hz, may disrupt the nervous system, causing muscular reaction and the painful sensation of electric shock. The most common reaction is to be thrown off the conductor as a result of the muscular contraction.
However, in a small number of instances, the consequence is death from cardiac arrest, or from ventricular fibrillation (where the heart muscle beats in a spasmodic and irregular fashion) or from respiratory arrest.
The psychological effects are largely determined by the magnitude and frequency of the current, the waveform (for example, continuous sine wave, or half wave rectified sine wave, or pulsed waveform), its duration, and the path it takes through the body.
An authoritative guide on the topic is published in IEC 60479. The following text concentrates on the most common situation of a shock from a continuous power frequency ac waveform.
The magnitude of the current is the applied voltage divided by the impedance of the body. The overall circuit impedance will comprise the body of the casualty and the other components in the shock circuit, including that of the power source and the interconnecting cables. For this reason, the voltage applied to the body, which is commonly known as the touch voltage, will often be lower than the source voltage.
The impedance of the body is determined by the magnitude of the touch voltage (there being an inverse relationship between impedance and voltage) and other factors, such as the wetness of the skin, the cross-sectional area of contact with the conductors, and whether or not the skin is broken or penetrated by the conductors.
As a general rule of thumb, at an applied voltage of 230 V at 50 Hz, the total body impedance for a hand-to-feet path will be in the range 1000 Ω to 2500 Ω for most of the population, falling to around 750 Ω at voltages in excess of about 1000 V.
Depiction of a typical indirect contact electric shock
Figure 16.1 - Depiction of a typical indirect contact electric shock

The path that the current takes through the body has a significant effect on the impedance. For example, the impedance for a hand-to-chest path is in the order of 50 per cent of the impedance for a hand-to-foot path. Moreover, the current’s path through the body is a significant determinant of the effect on the heart.
Table 16.1 summarizes the physiological effects of current passing through the body.
The effects relate to a hand-to-hand shock exceeding 1 s for a person in good health. If the duration were less than 1 s, greater currents could be tolerated without such adverse reactions.
Electric shock accidents are most common on low-voltage systems and are usually subdivided into two categories of direct contact and indirect contact shocks. A direct contact shock occurs when conductors that are meant to be live, such as bare wires or terminals, are touched. An indirect contact shock occurs when an exposed conductive part that has become live under fault conditions is touched, as depicted in Fig. 16.1.
Examples of an exposed conductive part are the metal casing of a washing machine and the metal casing of switchgear. This type of accident, which requires two faults to occur (the loss of the earth connection followed by a phase-to-earth fault), is quite common.

Physiological Effects

Table 16.1 The effect of passing alternating current (50 Hz) through the body from hand-to-hand
Current (mA)Physiological effect
0.5–2Threshold of perception
2–10Painful sensation, increasing with current. Muscular contraction may occur, leading to being thrown-off
10–25Threshold of ‘let go’, meaning that gripped electrodes cannot be released once the current is flowing. Cramp-like muscular contractions. May be difficulty in breathing leading to danger of asphyxiation from respiratory muscular contraction
25–80Severe muscular contraction, sometimes severe enough to cause bone dislocation and fracture. Increased likelihood of respiratory failure. Increased blood pressure. Increasing likelihood of ventricular fibrillation (unco-ordinated contractions of the heart muscles so that it ceases to pump effectively). Possible cardiac arrest
Over 80Burns at point of contact and in internal tissues. Death from ventricular fibrillation, cardiac arrest, or other consequential injuries

First Aid with Emergency Defibrillator

First aid - Emergency defibrillator
First aid - Emergency defibrillator

When providing first aid to an electric shock casualty, the first action should be to remove the cause by switching-off the supply or otherwise breaking contact between the casualty and the live conductor. Cardiopulmonary resuscitation may be required.
If the casualty is suffering from ventricular fibrillation, the only effective way to restore normal heart rhythm is by the use of a defibrillator.
Where a defibrillator is not immediately available, the first aider should carry out cardiopulmonary resuscitation until either the casualty recovers or professional assistance arrives.
SOURCE: J.M. Madden
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