Ultrasound

Ultrasound

Fundamentals Evolution of the term The word tactics originates in the Greek taxis, meaning order, arrangement, or disposition—including the kind of disposition in which armed formations used to enter and fight battles. From this, the Greek historian Xenophon derived the term tactica, the art of drawing up soldiers in array. Likewise, the Tactica, an early 10th-century handbook said to have been written under the supervision of the Byzantine emperor Leo VI the Wise, dealt with formations as well as weapons and the ways of fighting with them. The term tactics fell into disuse during the European Middle Ages. Until then, authors had considered fighting to be almost the sum total of war; now, however, it began to be regarded as merely one part of war. The art of fighting itself continued to carry the name tactics, whereas that of making the fight take place under the most favourable circumstances, as well as utilizing it after it had taken place, was given a new name: Since then, the terms tactics and strategy have usually marched together, but over time each has acquired both a prescriptive and a descriptive meaning. There have also been attempts to distinguish between minor tactics, the art of fighting individuals or small units, and grand tactics, a term coined about by the French military author Jacques-Antoine-Hippolyte de Guibert to describe the conduct of major battles.

Environment

Now, can you imagine living without your cell phone? According to the Pew Internet Project’s research study related to mobile technology, 56 percent of Americans have a smartphone, and 29 percent of cell phone owners describe their device as something they can’t imagine living without. I’ve often said that if your cell phone was waterproof, it would end up in the shower with you.

Heroes and Villains – A little light reading. Here you will find a brief history of technology. Initially inspired by the development of batteries, it covers technology in general and includes some interesting little known, or long forgotten, facts as well as a few myths about the development of technology, the science behind it, the context in which it occurred and the deeds of the many.

Placental mesenchymal dysplasia PMD is a benign condition that can be confused with a molar pregnancy by ultrasound scanning and gross examination. It is characterised by enlargement of the placenta with multiple bunch of grape-like vesicles. The condition is often underdiagnosed and underreported case due to lack of awareness. Cases are rare and are said to occur in just 0.

PMD usually features a normal foetus. However, it brings a high risk of fetal growth restriction and intrauterine foetal death IUFD. Mickayla, from Thornaby-on-Tees, North Yorkshire, said: Mickayla is also mother to her and her husband Craig’s son, Lenny, six left , and Lewie, 13 right , from a previous relationship She says her other pregnancies were straight forward, so didn’t expect any problems ‘I couldn’t even really see much of the foetus and the sonographer said it could be something called a molar pregnancy.

Both my other kids were over 8lb each and I had no problems with them at all. A rare genetic accident, it normally happens when an egg is fertilised by two sperm and develops with two sets of chromosomes from the father, instead of one female and one male.

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See Article History Tactics, in warfare, the art and science of fighting battles on land, on sea, and in the air. It is concerned with the approach to combat; the disposition of troops and other personalities; the use made of various arms, ships, or aircraft; and the execution of movements for attack or defense. This article discusses the tactics of land warfare.

For treatment of tactics on sea, see naval warfare , and for tactics in air combat, see air warfare.

Cybercrime is a criminal activity which is carried on by the use of computers and the Internet. Some of the common cyber crimes are hacking, cyber stalking, denial of service attack(DoS), virus dissemination, software piracy, credit card fraud & phishing.. To tackle the issue of cyber crimes, CIDs (Criminal Investigation Departments) of various cities opened up Cyber Crime Cells in different.

Views and clues inside Detroit’s party scene Credit: Reich, event coordinator for the Detroit area Lock and Key events, will try to prove you wrong. Attendees will attempt to match the locks and keys. For every match you make, you will be entered to win a raffle prize which include cash, manicures, candles, comedy passes and complimentary admission to future Lock and Key events. We hope that in the future this can happen in Detroit too. Guests will mingle until 9:

Battery and Energy Technologies

It is one of the most popular websites in China and on the entire web. Jiayuan Dating Site Jiayuan has a whopping million members. And there are a lot of pages, because Jiayuan is packed with different features.

Latest environmental news, features and updates. Pictures, video and more.

This part is very useful both for Prelims and Mains. Best book to study this section is D. For Basic Structure, These two articles might help you. Chapters 12, 13 14 and But Mains demands not only basic understanding of these topics, but your critical and analytic abilities to answer questions on these topics.

So, try to relate these concepts to current event topics and write small articles. ARC reports will help you in this regard. Public Grievances and Redressal Mechanism This topic is a dynamic portion — we read lot about conflict between the Judiciary and the Executive — to answer dynamic topics, one should first understand the constitutional provisions, redressal measures with the constitution, checks and balances provided in the constitution etc.

ARC reports come to the rescue again.

Ultrasound

What a beautiful view: Nudist beaches were never so crowded with stunning forms as in this year Welcome to the unique section of womans locker rooms! Here you will see everything that was hidden before! Watch the naked girls changing their clothes in front of you

Get the latest science news and technology news, read tech reviews and more at ABC News.

Looking for an anniversary or birthday gift idea for the husband or boyfriend? Already planning ahead to find the perfect, romantic Christmas present? Well, you are in luck! This post contains affiliate links. Yep, this gift idea is SO simple and easy to put together. If you have a printer, scissors, glue, and pen- then you have everything you need! Have you seen her work? That girl has some serious talent. I came up with the idea when I was trying to think of an inexpensive, but meaningful gift for my husband.

I wished I could afford to just whisk him away for a relaxing, romantic getaway. Our bucket list of traveling destinations is definitely long. However, with several little ones at home and student loans to pay- this is definitely not the season of our life for becoming world travelers. So I came up with this instead. You can choose to actually go out and visit different cities, sites, or attractions near you, OR you can do what I did and bring the different destinations to the comfort of your own home.

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The concept was originally derived in ecology and has been transferred to analyse human industrial society. This marks the edge of The Net Energy Cliff and it is clear that new Green technologies designed to save humanity from CO2 may kill humanity through energy starvation instead. Fossil fuels remain comfortably away from the cliff edge but march closer to it for every year that passes.

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History Galton whistle, one of the first devices to produce ultrasound Acoustics , the science of sound , starts as far back as Pythagoras in the 6th century BC, who wrote on the mathematical properties of stringed instruments. Echolocation in bats was discovered by Lazzaro Spallanzani in , when he demonstrated that bats hunted and navigated by inaudible sound, not vision. Francis Galton in invented the Galton whistle , an adjustable whistle that produced ultrasound, which he used to measure the hearing range of humans and other animals, demonstrating that many animals could hear sounds above the hearing range of humans.

The first technological application of ultrasound was an attempt to detect submarines by Paul Langevin in The piezoelectric effect , discovered by Jacques and Pierre Curie in , was useful in transducers to generate and detect ultrasonic waves in air and water. In air at atmospheric pressure, ultrasonic waves have wavelengths of 1. The Mosquito is an electronic device that uses a high pitched frequency to deter loitering by young people.

Animals Bats use ultrasounds to navigate in the darkness. A dog whistle , a whistle which emits sound in the ultrasonic range, used to train dogs and other animals Bats use a variety of ultrasonic ranging echolocation techniques to detect their prey. These include many groups of moths , beetles , praying mantids and lacewings. Upon hearing a bat, some insects will make evasive manoeuvres to escape being caught. For many processes in the medical, pharmaceutical, military and general industries this is an advantage over inline sensors that may contaminate the liquids inside a vessel or tube or that may be clogged by the product.

Both continuous wave and pulsed systems are used. The principle behind a pulsed-ultrasonic technology is that the transmit signal consists of short bursts of ultrasonic energy.

Highlights

History Galton whistle, one of the first devices to produce ultrasound Acoustics , the science of sound , starts as far back as Pythagoras in the 6th century BC, who wrote on the mathematical properties of stringed instruments. Echolocation in bats was discovered by Lazzaro Spallanzani in , when he demonstrated that bats hunted and navigated by inaudible sound and not vision. Francis Galton in invented the Galton whistle , an adjustable whistle which produced ultrasound, which he used to measure the hearing range of humans and other animals, demonstrating that many animals could hear sounds above the hearing range of humans.

The first technological application of ultrasound was an attempt to detect submarines by Paul Langevin in

Shop from the USA, UK or India. Staying in India and wish to buy from UK to India or USA to India. You have come to right place. PPOBox has established itself in the market to become one amongst the preferred choices of customers for their courier needs.

History of Technology Heroes and Villains – A little light reading Here you will find a brief history of technology. Initially inspired by the development of batteries, it covers technology in general and includes some interesting little known, or long forgotten, facts as well as a few myths about the development of technology, the science behind it, the context in which it occurred and the deeds of the many personalities, eccentrics and charlatans involved.

You may find the Search Engine , the Technology Timeline or the Hall of Fame quicker if you are looking for something or somebody in particular. Scroll down and see what treasures you can discover. Background We think of a battery today as a source of portable power, but it is no exaggeration to say that the battery is one of the most important inventions in the history of mankind. Volta’s pile was at first a technical curiosity but this new electrochemical phenomenon very quickly opened the door to new branches of both physics and chemistry and a myriad of discoveries, inventions and applications.

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The Nigerian dating scams target the lonely and vulnerable. The most common comment of victims who think they have found the love of their life is “I can’t believe I was so stupid! The Nigerian dating scams are hugely profitable. The Nigerians call them ‘maghas’ which is slang for gullible white people.

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Harris started the world’s first dental school in Bainbridge, Ohio , and helped to establish dentistry as a health profession. It opened on 21 February , and today is a dental museum. Studies show that dentists that graduated from different countries, [14] or even from different dental schools in one country, [15] may make different clinical decisions for the same clinical condition.

For example, dentists that graduated from Israeli dental schools may recommend the removal of asymptomatic impacted third molar wisdom teeth more often than dentists that graduated from Latin American or Eastern European dental schools. In most western countries, to become a qualified dentist one must usually complete at least four years of postgraduate study; [21] within the European Union the education has to be at least five years.

Dentists usually complete between five and eight years of post-secondary education before practising. Though not mandatory, many dentists choose to complete an internship or residency focusing on specific aspects of dental care after they have received their dental degree. Specialty dentistry Some dentists undertake further training after their initial degree in order to specialize.

Exactly which subjects are recognized by dental registration bodies varies according to location. Dental public health — The study of epidemiology and social health policies relevant to oral health.

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