- 行业: Printing & publishing
- Number of terms: 178089
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- Company Profile:
McGraw Hill Financial, Inc. is an American publicly traded corporation headquartered in Rockefeller Center in New York City. Its primary areas of business are financial, publishing, and business services.
An acute respiratory viral infection characterized by fever, chills, sore throat, headache, body aches, and severe cough; it is commonly known as the flu. While many viruses can cause respiratory infections such as the common cold, influenza viruses are more likely to cause severe illness and to result in serious medical complications. Although gastrointestinal symptoms may sometimes accompany influenza infection, especially in children, the term “stomach flu” is a misnomer for gastrointestinal illnesses caused by a variety of other viruses, bacteria, or other agents.
Industry:Science
An acute virus infection of cats, also called feline viral enteritis and (erroneously) feline distemper. The virus infects all members of the cat family (Felidae) as well as some mink, ferrets, and skunks (Mustelidae); raccoons and coatimundi (Procyonidae); and the binturong (Viverridae). Panleukopenia is the most important infectious disease of cats.
Industry:Science
An acute, encephalitic viral infection. In humans it is almost invariably fatal. Human beings are infected from the bite of a rabid animal, usually a dog.
Industry:Science
An acute, febrile, mosquito-borne viral disease characterized in severe cases by jaundice, albuminuria, and hemorrhage. Inapparent infections alsooccur.
Industry:Science
An acute, highly infectious viral disease with cough, fever, and maculopapular rash. It is of worldwide endemicity. The infective particle is a ribonucleic acid (RNA) virus. Measles, canine distemper, and bovine rinderpest viruses are antigenically related.
Industry:Science
An acute, infectious worldwide zoonotic disease caused by the spore-forming bacterium <i>Bacillus anthracis</i> to which most animals, especially grazing herbivores, are susceptible. In natural conditions, human infections (predominantly cutaneous) usually result from contact with infected animals or contaminated animal products, such as hides or wool. The awareness of the use of <i>B. anthracis</i> as a bioterrorist weapon has considerably increased. Anthrax is endemic as a zoonosis in many areas of Africa, Asia, and the Americas, where spores can lie dormant in the soil for many years and commonly affect grazing animals such as sheep, cattle, and goats.
Industry:Science
An acute, usually fatal, disease of cattle and occasionally of sheep, goats, and swine, but not humans. The infection is caused by <i>Clostridium chauvoei (C. feseri)</i>, a strictly anaerobic, spore-forming bacillus of the soil. The disease is also called symptomatic anthrax or quarter-evil. The characteristic lesions in the natural infection consist of crepitant swellings in involved muscles, which at necropsy are dark red, dark brown, or blue black. Artificial immunization is possible by use of blackleg aggressin or whole-culture bacterin. Animals surviving an attack of blackleg are permanently immune to its recurrence.
Industry:Science
An adhesive substance, the glycocalyx, and the bacterial community which it envelops at the interface of a liquid and a surface. When a liquid is in contact with an inert surface, any bacteria within the liquid are attracted to the surface and adhere to it. In this process the bacteria produce the glycocalyx. The bacterial inhabitants within this microenvironment benefit as the biofilm concentrates nutrients from the liquid phase. However, these activities may damage the surface, impair its efficiency, or develop within the biofilm a pathogenic community that may damage the associated environment. Microbial fouling or biofouling are the terms applied to these actual or potential undesirable consequences.
Industry:Science
An advanced particle detector for the study of ultrahigh-energy collisions of positrons and electrons developed originally at the Lawrence Berkeley Laboratory. The underlying physics of the scattering process can be studied through precise measurements of the momenta, directions, particle species, and correlations of the collision products. The time-projection chamber (TPC) provides a unique combination of capabilities for these studies and other problems in elementary particle physics by offering particle identification over a wide momentum range, and by offering high resolution of intrinsically three-dimensional spatial information for accurate reconstruction of events.
Industry:Science
An aeroelastic self-excited vibration with a sustained or divergent amplitude, which occurs when a structure is placed in a flow of sufficiently high velocity. Flutter is an instability that can be extremely violent. At low speeds, in the presence of an airstream, the vibration modes of an aircraft are stable; that is, if the aircraft is disturbed, the ensuing motion will be damped. At higher speeds, the effect of the airstream is to couple two or more vibration modes such that the vibrating structure will extract energy from the airstream. The coupled vibration modes will remain stable as long as the extracted energy is dissipated by the internal damping or friction of the structure. However, a critical speed is reached when the extracted energy equals the amount of energy that the structure is capable of dissipating, and a neutrally stable vibration will persist. This is called the flutter speed. At a higher speed, the vibration amplitude will diverge, and a structural failure will result.
Industry:Science
