Ultrasound

White papers and e-books: That type of e-book and a white paper can be hard to tell apart. A B2B e-book can be just about any length on just about any topic. Many e-books look more like slide decks than text-driven documents. In fact, some say e-books are just prettied-up white papers turned on their sides. In any case, here are some scenarios when an e-book might work better than a white paper: Your audience is prone to distraction They may be young, or on the road.

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CAS teichoic acid Any of the polymers found in the cell walls of some gram-positive bacteria, such as the staphylococci. It is used to decrease bleeding time during surgical procedures. Loss of blood is decreased when this drug is used. CAS trans-fatty acid The solid fat produced by heating liquid vegetable oils in the presence of hydrogen and certain metal catalysts.

Partial hydrogenation changes some of the unsaturated bonds to saturated ones. The more trans-fatty acids in the diet, the higher the serum cholesterol and low-density lipoprotein cholesterol.

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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 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 The piezoelectric effect , discovered by Jacques and Pierre Curie in , was useful in transducers to generate and detect ultrasonic waves in air and water.

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.

This includes 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.

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General considerations Basic concepts Interest in how information is communicated and how its carriers convey meaning has occupied, since the time of pre-Socratic philosophers, the field of inquiry called semiotics , the study of signs and sign phenomena. Signs are the irreducible elements of communication and the carriers of meaning. The American philosopher, mathematician, and physicist Charles S.

Digital definition, displaying a readout in numerical digits rather than by a pointer or hands on a dial: a digital speedometer; a digital watch. See more.

Imitation Imitation is an advanced behaviour whereby an animal observes and exactly replicates the behaviour of another. The National Institutes of Health reported that capuchin monkeys preferred the company of researchers who imitated them to that of researchers who did not. The monkeys not only spent more time with their imitators but also preferred to engage in a simple task with them even when provided with the option of performing the same task with a non-imitator.

One of these is stimulus enhancement in which individuals become interested in an object as the result of observing others interacting with the object. Haggerty devised an experiment in which a monkey climbed up the side of a cage, placed its arm into a wooden chute, and pulled a rope in the chute to release food. Another monkey was provided an opportunity to obtain the food after watching a monkey go through this process on four separate occasions.

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An excellent opportunity to collect high quality photographic prints and support this website. Sharpening Sharpening increases image contrast at boundaries. This enhances perceived sharpness and detail, although it doesn’t increase actual information content. Sharpening can be overdone: But the right amount definitely enhances an image. Although sharpening can be performed during the scan or in the digital camera, it is usually best done late in the image editing process.

The evidence shows that violent disciplinary methods often go together, which means in the majority of countries most children experience both corporal punishment and psychological violence.

Local apples were used for pie. Baking powder came in different strengths single, double acting. Did you know some culinary historians say we Americans measure with objects as opposed to weight because of our pioneer heritage? Family recipes specifying “5 tins” of sugar are among the most challenging. The omission of flour measures is brilliant. Prior to modern supermarket flour, this variable item created different products according to grain, grind, season, and storage.

Measurements and detailed cooking instructions were a by-product of the Industrial Revolution and are commonly attributed to Fannie M. Farmer, principal of the Boston Cooking School.

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Imitation Imitation is an advanced behaviour whereby an animal observes and exactly replicates the behaviour of another. The National Institutes of Health reported that capuchin monkeys preferred the company of researchers who imitated them to that of researchers who did not. The monkeys not only spent more time with their imitators but also preferred to engage in a simple task with them even when provided with the option of performing the same task with a non-imitator.

One of these is stimulus enhancement in which individuals become interested in an object as the result of observing others interacting with the object.

In this page we examine the MTF of scanners and sharpening algorithms, and we address the question, “What scanner resolution (pixels per inch or dpi) is required for a digital print to appear sharper than a conventional darkroom print?”.

Comprehensive review of annually laminated varved lake sediments. Abstract Downcore counting of laminations in varved sediments offers a direct and incremental dating technique for high-resolution climatic and environmental archives with at least annual and sometimes even seasonal resolution. The pioneering definition of varves by De Geer had been restricted to rhythmically deposited proglacial clays. Subsequent to deposition of topmost laminae, the physical preservation of the accumulating varved sequence requires the sustained absence of sediment mixing, for example via wave action or macrobenthic bioturbation.

Various predominating climatic and depositional conditions may result in clastic, biogenic or endogenic incl. To reliably establish a varve chronology, the annual character of laminations needs to be determined and verified in a multidisciplinary fashion. Sources and influences of possible errors in varve chronologies are best determined and constrained by repeated varve counts, and by including radioisotopes and correlation with historically documented events. A well-established varve chronology greatly enhances the scientific value of laminated limnic archives by securely anchoring the wealth of multi-proxy palaeoenvironmental information in the form of time-series for multidisciplinary investigations.

Applications of varved records are discussed with special reference to advances since the s. These span fields like calibrating radiometric dating methods, reconstructing past changes of the Earth’s magnetic field or detecting fluctuations in solar forcing.

George Ritzer and the McDonaldization of Society: Definition and Principles

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Microwave ovens (aka radar cooking) Like fire, the microwave oven cookery was discovered by accident. Follow the fascinating journey from science lab to American home kitchens.

In this lesson, we discuss his concept of McDonaldization and the four main characteristics of McDonaldization that he describes. For the purposes of this video, the instructor is using the American pronunciation of Max Weber’s name. George Ritzer and McDonaldization In our modern society, trends and technology become such a large part of everyday life that people start to use them as verbs and adjectives.

For example, when’s the last time you ‘Googled’ something, ‘blogged’ about a recent trip, or saw that a new game had been ‘Facebookized? He defines McDonaldization as the process by which principles of fast food restaurants have come to dominate virtually every aspect of society. McDonald’s and other fast-food restaurants offer an alternative to labor-intensive, home-cooked meals that have been attractive to busy families since the s.

Two of their most appealing qualities are convenience and affordability. These qualities and similar principles are becoming increasingly important in all aspects of our modern society. Rationalization of Society The building block of McDonaldization is Max Weber’s concept of rationalization, which is the process of replacing traditional and emotional thought with reason and efficiency.

Weber believed that most societies throughout history were governed by tradition and that the most significant trend in modern sociology is an increasing rationalization of every part of our daily lives. He also believed that rationalization would continue until our society would become an iron cage, dehumanizing everyone and creating an extreme level of uniformity. Likewise, Ritzer uses McDonald’s as a metaphor for the over-rationalization of society.

The popularity of the restaurant itself is a perfect example of rationalization because traditional, home-cooked family meals have been replaced with meals of practicality and convenience. Continued rationalization has led to sectors beyond the fast food industry becoming increasingly uniform and automated.

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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.

Internet Marketing and SEO. Online marketing is an efficient channel to reach a large market. Prior to the 90’s, services used conventional channels such as print media, transmitted media, direct-mail advertisings and telemarketing to reach their audiences.

In this lesson, we discuss his concept of McDonaldization and the four main characteristics of McDonaldization that he describes. For the purposes of this video, the instructor is using the American pronunciation of Max Weber’s name. George Ritzer and McDonaldization In our modern society, trends and technology become such a large part of everyday life that people start to use them as verbs and adjectives.

For example, when’s the last time you ‘Googled’ something, ‘blogged’ about a recent trip, or saw that a new game had been ‘Facebookized? He defines McDonaldization as the process by which principles of fast food restaurants have come to dominate virtually every aspect of society. McDonald’s and other fast-food restaurants offer an alternative to labor-intensive, home-cooked meals that have been attractive to busy families since the s.

Two of their most appealing qualities are convenience and affordability. These qualities and similar principles are becoming increasingly important in all aspects of our modern society. Rationalization of Society The building block of McDonaldization is Max Weber’s concept of rationalization, which is the process of replacing traditional and emotional thought with reason and efficiency. Weber believed that most societies throughout history were governed by tradition and that the most significant trend in modern sociology is an increasing rationalization of every part of our daily lives.

He also believed that rationalization would continue until our society would become an iron cage, dehumanizing everyone and creating an extreme level of uniformity.

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