You are using an outdated browser. Please upgrade your browser to improve your experience and security.
  • Stroud, Don (American actor and surfer)

    Coogan's Bluff: …escaped killer, James Ringerman (Don Stroud). Ringerman, however, is in the hospital after overdosing on LSD. Coogan grows increasingly frustrated at the legal technicalities hindering Ringerman’s release and soon takes matters into his own hands. He tricks the hospital into releasing Ringerman into his custody, but plans go awry…

  • Stroud, Mike (British physician and adventurer)

    Sir Ranulph Fiennes: …the British physician and adventurer Mike Stroud made several unsuccessful attempts to reach the North Pole unsupported (i.e., without outside contact or resupply) and on foot before deciding to try the same feat in Antarctica in 1992–93. They did cross the continent—in the process setting a distance record for unsupported…

  • Stroud, Robert (American criminal and ornithologist)

    Robert Stroud, American criminal, a convicted murderer who became a self-taught ornithologist during his 54 years in prison, 42 of them in solitary confinement, and made notable contributions to the study of birds. At the age of 13 Stroud ran away from home, and by the age of 18 he was in Juneau,

  • Stroud, Robert Franklin (American criminal and ornithologist)

    Robert Stroud, American criminal, a convicted murderer who became a self-taught ornithologist during his 54 years in prison, 42 of them in solitary confinement, and made notable contributions to the study of birds. At the age of 13 Stroud ran away from home, and by the age of 18 he was in Juneau,

  • Stroudsburg (Pennsylvania, United States)

    Stroudsburg, borough (town), seat of Monroe county, eastern Pennsylvania, U.S. A resort community, it lies along Brodhead Creek, adjacent to East Stroudsburg, in the Pocono Mountains area, near the Delaware River (there bridged to New Jersey). The site was first settled in 1760 by Colonel Jacob

  • Strouma River (river, Europe)

    Struma River, river in western Bulgaria and northeastern Greece, rising in the Vitosha Massif of the Rhodope Mountains in Bulgaria, southwest of Sofia. It follows a course of 258 miles (415 km) south-southeast via Pernik to the Aegean Sea, which it enters 30 miles (50 km) west-southwest of Kavála.

  • Strowger switch

    telephone: Electromechanical switching: The Strowger switch consisted of essentially two parts: an array of 100 terminals, called the bank, that were arranged 10 rows high and 10 columns wide in a cylindrical arc; and a movable switch, called the brush, which was moved up and down the cylinder by…

  • Strozzi key (metalwork)

    metalwork: France: Among them is the famous Strozzi key, said to have been made for the apartments of Henry III, the bow of which takes the favoured form of two grotesque figures back to back. But as far as architectural ironwork was concerned, France remained almost at a standstill until the accession…

  • Strozzi, Barbara (Italian singer and composer)

    Barbara Strozzi, Italian virtuoso singer and composer of vocal music, one of only a few women in the 17th century to publish their own compositions. Barbara Strozzi was the adopted daughter—and likely the illegitimate child—of the poet Giulio Strozzi; her mother, Isabella Garzoni, was a “long-time

  • Strozzi, Bernardo (Italian painter)

    Western painting: Early and High Baroque in Italy: …Francesco Maffei from Vicenza, whereas Bernardo Strozzi in 1630 carried to Venice the saturated colours and vigorous painterly qualities of the Genoese school. Giovanni Benedetto Castiglione also began his career in Genoa and, after a period in Rome, worked from 1648 as court painter in Mantua, where his brilliant free…

  • Strozzi, Filippo (Italian banker)

    Benedetto da Maiano: …employed by the Florentine banker Filippo Strozzi, of whom he made a marble bust (from a terra-cotta model that some consider superior) and whose tomb in Sta. Maria Novella, Florence, he completed after 1491.

  • Strozzi, Giulio (Italian poet)

    Barbara Strozzi: …the illegitimate child—of the poet Giulio Strozzi; her mother, Isabella Garzoni, was a “long-time servant” in Giulio’s household. Giulio used his connections in the intellectual world of Venice to showcase his daughter and to advance her career. He was a member of the Venetian circle of intellectuals known as the…

  • Strozzi, Niccolò (Italian merchant)

    Mino da Fiesole: …and politically prominent Florentine merchant Niccolò Strozzi, was carved in Rome in 1454. Included among other of his major portrait busts are those of Astorgio Manfredi, Rinaldo della Luna (1461), and Diotisalvi Neroni (1464).

  • Strozzi, Palazzo (palace, Florence, Italy)

    Florence: City layout: …palace in Florence is the Strozzi Palace, begun in 1489 for one of the city’s largest and wealthiest families (which, however, had been eclipsed politically by the Medici). Its enormous scale deliberately surpassed that of the Medici Palace. Noteworthy within the Strozzi Palace is a spacious courtyard, which by its…

  • Strozzi, Zanobi (Italian painter)

    Fra Angelico: Years at the priory of San Marco: …of Fra Angelico’s disciples, and Zanobi Strozzi, another pupil better known as a miniaturist, as well as his earliest collaborator, Battista Sanguigni. The hand of Fra Angelico himself is identifiable in the first 10 cells on the eastern side. Three subjects merit particular attention: a Resurrection, a coronation of the…

  • Struble, Arthur D. (United States admiral)

    Inch'?n landing: Arthur D. Struble, the U.S. Navy’s Seventh Fleet commander.

  • Struchkova, Raisa Stepanovna (Russian dancer and teacher)

    Raisa Stepanovna Struchkova, Russian dancer and teacher (born Oct. 5, 1925, Moscow, Russia, U.S.S.R.—died May 2, 2005, Moscow, Russia), was noted for her brilliant, expressive technique in classical and dramatic ballets during her more than 30-year career with the Bolshoi Ballet. Especially in t

  • struck jury

    Blue-ribbon jury, a group, chosen from the citizenry of a district, that has special qualifications to try a complex or important case. The blue-ribbon jury is intended to overcome the problems of ordinary juries in interpreting complex technical or commercial questions. In the United States

  • structural clay product

    Structural clay products, ceramic products intended for use in building construction. Typical structural clay products are building brick, paving brick, terra-cotta facing tile, roofing tile, and drainage pipe. These objects are made from commonly occurring natural materials, which are mixed with

  • structural coloration (biology)

    Schemochrome, any one of many colourless, submicroscopic structures in organisms that serve as a source of colour by the manner in which they reflect light. Among those physical structures in organisms that fractionate light into its component colours are ridges, striations, facets, successive

  • Structural Contexts of Opportunities (book by Blau)

    social structure: Recent trends in social structure theory: In Structural Contexts of Opportunities (1994), Peter M. Blau developed a formal macrosociological theory concerning the influences of large population structures on social life. He identified how different population groups relate to each other. He found that occupational heterogeneity increases the chance for contact between people…

  • structural damping (physics)

    damping: …structure itself that is called hysteresis damping or, sometimes, structural damping. In hysteresis damping, some of the energy involved in the repetitive internal deformation and restoration to original shape is dissipated in the form of random vibrations of the crystal lattice in solids and random kinetic energy of the molecules…

  • structural engineering

    construction: Building science: …concept of a statically determinate structure—that is, a structure whose forces could be determined from Newton’s laws of motion alone—was set forth by Otto Mohr in 1874, after having been used intuitively for perhaps 40 years. Most 19th-century structures were purposely designed and fabricated with pin joints to be statically…

  • structural formula (chemistry)

    chemical formula: Structural formulas identify the location of chemical bonds between the atoms of a molecule. A structural formula consists of symbols for the atoms connected by short lines that represent chemical bonds—one, two, or three lines standing for single, double, or triple bonds, respectively. For example,…

  • structural functionalism (sociology)

    social structure: Structural functionalism: A.R. Radcliffe-Brown, a British social anthropologist, gave the concept of social structure a central place in his approach and connected it to the concept of function. In his view, the components of the social structure have indispensable functions for one another—the continued existence…

  • structural gene (genetics)

    blood group: Blood groups and genetic linkage: …the activity of closely linked structural genes on or off. The operator genes are themselves controlled by regulator genes. The operator genes are responsible for the quantity of Rh antigens, while the structural genes are responsible for their qualitative characteristics.

  • structural genomics (genetics)

    recombinant DNA: Genomics: Genomics has two subdivisions: structural genomics and functional genomics. Structural genomics is based on the complete nucleotide sequence of a genome. Each member of a library of clones is physically manipulated by robots and sequenced by automatic sequencing machines, enabling a very high throughput of DNA. The resulting sequences…

  • structural geology

    Structural geology, scientific discipline that is concerned with rock deformation on both a large and a small scale. Its scope of study is vast, ranging from submicroscopic lattice defects in crystals to fault structures and fold systems of the Earth’s crust. A brief treatment of structural geology

  • structural grammar (linguistics)

    grammar: Conceptions of grammar: … provide rules for correct usage), descriptive (i.e., describe how a language is actually used), or generative (i.e., provide instructions for the production of an infinite number of sentences in a language). The traditional focus of inquiry has been on morphology and syntax, and for some contemporary linguists (and many traditional…

  • Structural Impediments Initiative

    Japan: Economic change: …taken up in the so-called Structural Impediments Initiative (SII) in the late 1980s. By the end of the decade it was generally acknowledged that formal barriers to trade had been largely dismantled, though areas such as construction bidding were still closed, and many cultural barriers remained.

  • structural isomerism

    hydrocarbon: Alkanes: …and are referred to as constitutional isomers. (An older name is structural isomers.) The compounds n-butane and isobutane are constitutional isomers and are the only ones possible for the formula C4H10. Because isomers are different compounds, they can have different physical and chemical properties. For example, n-butane has a higher…

  • structural landform (geology)

    Structural landform, any topographic feature formed by the differential wearing away of rocks and the deposition of the resulting debris under the influence of exogenetic geomorphic forces. Such forces operate at the interface of the planetary atmosphere, lithosphere, cryosphere, and hydrosphere.

  • structural linguistics

    Zellig S. Harris: He carried the structural linguistic ideas of Leonard Bloomfield to their furthest logical development: to discover the linear distributional relations of phonemes and morphemes.

  • structural realism (political and social science)

    realism: Neorealism: Associated in particular with the American political scientist Kenneth Waltz, neorealism was an attempt to translate some of the key insights of classical realism into the language and methods of modern social science. In the Theory of International Politics (1979), Waltz argued that most…

  • structural ribonucleic acid (biochemistry)

    metabolism: Synthesis of RNA: …amino acids into proteins; and structural RNA is found in the ribosomes that form the protein-synthesizing machinery of the cell. In cells of organisms with well-defined nuclei (i.e., eukaryotes), a heterogenous RNA fraction of unknown function is constantly broken down and resynthesized in the nucleus of the cell but does…

  • structural RNA (biochemistry)

    metabolism: Synthesis of RNA: …amino acids into proteins; and structural RNA is found in the ribosomes that form the protein-synthesizing machinery of the cell. In cells of organisms with well-defined nuclei (i.e., eukaryotes), a heterogenous RNA fraction of unknown function is constantly broken down and resynthesized in the nucleus of the cell but does…

  • structural system (building construction)

    Structural system, in building construction, the particular method of assembling and constructing structural elements of a building so that they support and transmit applied loads safely to the ground without exceeding the allowable stresses in the members. Basic types of systems include

  • Structural Transformation of the Public Sphere, The (work by Habermas)

    Jürgen Habermas: Career and public life: …as Strukturwandel der ?ffentlichkeit (The Structural Transformation of the Public Sphere). In 1961 Habermas became a privatdozent (unsalaried professor and lecturer) in Marburg, and in 1962 he was named extraordinary professor (professor without chair) at the University of Heidelberg. He succeeded Max Horkheimer as professor of philosophy and sociology…

  • structural trap (geology)

    petroleum trap: …simple system divides them into structural traps and stratigraphic traps. The most common type of structural trap is formed by an anticline, a structure with a concave (as viewed from below) roof caused by the local deformation of the reservoir rock and the impermeable cap rock. In this case, the…

  • structural violence (psychology)

    peace psychology: …people quickly and dramatically, whereas structural violence is much more widespread and kills far more people by depriving them of satisfaction of their basic needs. For example, when people starve even though there’s enough food for everyone, the distribution system is creating structural violence. If a person justifies the deaths…

  • structural-functional analysis (sociology)

    social structure: Structural functionalism: A.R. Radcliffe-Brown, a British social anthropologist, gave the concept of social structure a central place in his approach and connected it to the concept of function. In his view, the components of the social structure have indispensable functions for one another—the continued existence…

  • structuralism (linguistics)

    Structuralism, in linguistics, any one of several schools of 20th-century linguistics committed to the structuralist principle that a language is a self-contained relational structure, the elements of which derive their existence and their value from their distribution and oppositions in texts or

  • structuralism (mathematics)

    philosophy of mathematics: Nontraditional versions: … and Shapiro is known as structuralism. The essential ideas here are that the real objects of study in mathematics are structures, or patterns—things such as infinite series, geometric spaces, and set-theoretic hierarchies—and that individual mathematical objects (such as the number 4) are not really objects at all in the ordinary…

  • structuralism (anthropology)

    Structuralism, in cultural anthropology, the school of thought developed by the French anthropologist Claude Lévi-Strauss, in which cultures, viewed as systems, are analyzed in terms of the structural relations among their elements. According to Lévi-Strauss’s theories, universal patterns in

  • structuralism (economics)

    agency: Criticisms: Advocates of structuralist approaches to politics and society argue that history is not made by individuals (or by classes exhibiting agency) but is a consequence of structural requirements. Individuals take up preexisting roles and mainly reproduce structures they neither choose nor question. Furthermore, their intentions, whatever they…

  • structuralism (epistemology)

    Arthur Eddington: Philosophy of science: …called “selective subjectivism” and “structuralism”—i.e., the interplay of physical observations and geometry. He believed that a great part of physics simply reflected the interpretation that the scientist imposes on his data. The better part of his philosophy, however, was not his metaphysics but his “structure” logic. His theoretical work…

  • structuralism (psychology)

    Structuralism, in psychology, a systematic movement founded in Germany by Wilhelm Wundt and mainly identified with Edward B. Titchener. Structuralism sought to analyze the adult mind (defined as the sum total of experience from birth to the present) in terms of the simplest definable components and

  • structuration theory (sociology)

    Structuration theory, concept in sociology that offers perspectives on human behaviour based on a synthesis of structure and agency effects known as the “duality of structure.” Instead of describing the capacity of human action as being constrained by powerful stable societal structures (such as

  • structure (art)

    aesthetics: Form: …perception of form is “structure,” the underlying, concealed formula according to which a work of art is constructed. This idea has had considerable influence in two areas, music theory and literary criticism, the former through the Austrian music theorist Heinrich Schenker and the latter through the Russian formalists and…

  • structure (logic)

    metalogic: Satisfaction of a theory by a structure: finite and infinite models: A realization of a language (for example, the one based on L) is a structure ?? identified by the six elements so arranged

  • structure (political science)

    international relations: Structures, institutions, and levels of analysis: Since the 1970s the study of international relations has been marked by a renewed debate about the relationship between structures and institutions in international systems. On one side of the controversy was a revival of the school of realism,…

  • Structure and Change in Economic History (work by North)

    cliometrics: …rights in such works as Structure and Change in Economic History (1981). See also econometrics.

  • Structure and Combination of Histological Elements of the Central Nervous System, The (work by Nansen)

    Fridtjof Nansen: Scientific work: …one of his papers, “The Structure and Combination of Histological Elements of the Central Nervous System” (1887), the University of Kristiania conferred upon him the degree of doctor of philosophy. Though the paper contained so many novel interpretations that the committee that had to examine it accepted it with…

  • Structure and Development of Mosses and Ferns, The (work by Campbell)

    Douglas Houghton Campbell: His best-known works are The Structure and Development of Mosses and Ferns (1895), which remained a standard college text for nearly half a century, and Evolution of the Land Plants (1940), which summarized his phylogenetic arguments.

  • Structure and History in Greek Mythology and Ritual (work by Burkert)

    myth: Formalist: …relation is given in Burkert’s Structure and History in Greek Mythology and Ritual (1979). Burkert shows how certain Greek myths have a recurring pattern that he calls “the girl’s tragedy.” According to this pattern, a girl first leaves home; after a period of seclusion, she is raped by a god;…

  • Structure of Politics at the Accession of George III, The (work by Namier)

    Sir Lewis Bernstein Namier: The appearance of Namier’s The Structure of Politics at the Accession of George III in 1929 revolutionized 18th-century historiography and remains his most considerable work. By intensive research over a brief period, he aimed to show why men entered politics, and he rejected the simple classification of Whig and…

  • Structure of Science, The (work by Nagel)

    Ernest Nagel: The Structure of Science (1961) analyzes the nature of explanation, the logic of scientific inquiry, and the logical structure of the organization of scientific knowledge. His other books include Sovereign Reason (1954), G?del’s Proof (1958; with James R. Newman), and Teleology Revisited and Other Essays…

  • Structure of Scientific Revolutions, The (work by Kuhn)

    Thomas S. Kuhn: In his landmark second book, The Structure of Scientific Revolutions, he argued that scientific research and thought are defined by “paradigms,” or conceptual world-views, that consist of formal theories, classic experiments, and trusted methods. Scientists typically accept a prevailing paradigm and try to extend its scope by refining theories, explaining…

  • Structure of Social Action, The (work by Parsons)

    Talcott Parsons: In his first major book, The Structure of Social Action (1937), Parsons drew on elements from the works of several European scholars (Weber, Pareto, Alfred Marshall, and émile Durkheim) to develop a common systematic theory of social action based on a voluntaristic principle—i.e., the choices between alternative values and actions…

  • structure-activity relationship (chemistry)

    pharmaceutical industry: Structure-activity relationship: The term structure-activity relationship (SAR) is now used to describe the process used by Ehrlich to develop arsphenamine, the first successful treatment for syphilis. In essence, Ehrlich synthesized a series of structurally related chemical compounds and tested each one to determine its pharmacological…

  • structure-medium interaction (tunnelling)

    tunnels and underground excavations: Ground support: …by a physical mechanism termed structure-medium interaction. The support load increases greatly when the inherent ground strength is much reduced by allowing excessive yield to loosen the rock mass. Because this may occur when installation of support is delayed too long, or because it may result from blast damage, good…

  • structure-of-intellect theory (psychology)

    human intelligence: Psychometric theories: …Joy Paul Guilford proposed a structure-of-intellect theory, which in its earlier versions postulated 120 abilities. In The Nature of Human Intelligence (1967), Guilford argued that abilities can be divided into five kinds of operation, four kinds of content, and six kinds of product. These facets can be variously combined to…

  • structure-preserving map (mathematics)

    Homomorphism, (from Greek homoios morphe, “similar form”), a special correspondence between the members (elements) of two algebraic systems, such as two groups, two rings, or two fields. Two homomorphic systems have the same basic structure, and, while their elements and operations may appear

  • structured data (computing)

    information processing: Storage structures for digital-form information: …is useful to distinguish between “structured” data, such as inventories of objects that can be represented by short symbol strings and numbers, and “unstructured” data, such as the natural-language text of documents or pictorial images. The principal objective of all storage structures is to facilitate the processing of data elements…

  • structured query language (computer language)

    SQL, computer language designed for eliciting information from databases. In the 1970s computer scientists began developing a standardized way to manipulate databases, and out of that research came SQL. The late 1970s and early ’80s saw the release of a number of SQL-based products. SQL gained

  • Structured Systems Group (American company)

    computer: Application software: …1977 a two-person firm called Structured Systems Group started developing a General Ledger program, perhaps the first serious business software, which sold for $995. The company shipped its software in ziplock bags with a manual, a practice that became common in the industry. General Ledger began to familiarize business managers…

  • Structures (work by Boulez)

    Pierre Boulez: In Structures, Book I for two pianos (1952), the actual 12-tone series is simply taken from a work of Messiaen’s; but Boulez elaborates it to a remarkable degree in strict permutations of pitch, duration, and dynamics. Le Marteau sans ma?tre for voice and six instruments (1953–55;…

  • strudel (food)
  • Strudlhofstiege, Die (novel by Doderer)

    Heimito von Doderer: Die Strudlhofstiege (1951; “The Strudlhof Stairs”), which covered the Vienna scene in 1910–11 and 1923–25, sets the stage for Die D?monen, which was a success and established Doderer’s reputation. Die Wasserf?lle von Slunj (1963; The Waterfalls of Slunj) was the first novel in an intended…

  • Struensee, Johann Friedrich, Graf von (German physician and statesman)

    Johann Friedrich, count von Struensee, German physician and statesman who, through his control over the weak-minded King Christian VII, wielded absolute power in Denmark in 1770–72. Struensee became town physician of Altona (then in Denmark, now in Germany) in the 1760s. Through acquaintance with

  • struggle for existence (biology)

    Darwinism: …to another; and (3) the struggle for existence—which determines the variations that will confer advantages in a given environment, thus altering species through a selective reproductive rate.

  • Struggle for Life, The (work by Baroja)

    Pío Baroja: …lucha por la vida (1904; The Struggle for Life, 1922–24), portrays the misery and squalor in the poor sections of Madrid. Himself a confirmed rebel and nonconformist, Baroja wrote at length about vagabonds and people who reflected his own thinking; El árbol de la ciencia (1911; The Tree of Knowledge,…

  • Struggle of the Two Natures in Man, The (sculpture by Barnard)

    George Grey Barnard: …marble group (commissioned by Clark) The Struggle of the Two Natures in Man (1888–94), a depiction of two male nudes, which created a sensation. He returned to the United States soon after and settled in New York City. Beginning in 1900, he taught briefly at the Art Students League. About…

  • Struggle, The (film by Griffith [1931])

    D.W. Griffith: The Birth of a Nation and Intolerance: His last film, The Struggle (1931), a grim study of the degeneration of an alcoholic husband, was an abject failure, withdrawn by United Artists after a brief run. Griffith had produced The Struggle independently and, although not destitute, was never again able to finance another film or find…

  • Strukturwandel der ?ffentlichkeit (work by Habermas)

    Jürgen Habermas: Career and public life: …as Strukturwandel der ?ffentlichkeit (The Structural Transformation of the Public Sphere). In 1961 Habermas became a privatdozent (unsalaried professor and lecturer) in Marburg, and in 1962 he was named extraordinary professor (professor without chair) at the University of Heidelberg. He succeeded Max Horkheimer as professor of philosophy and sociology…

  • struma (medical disorder)

    king's evil: ), or struma, a tuberculous swelling of the lymph glands, once popularly supposed to be curable by the touch of royalty. The custom of touching was first adopted in England by Edward the Confessor and in France by Philip I. In England the practice was attended with…

  • struma fibrosa (medical condition)

    Riedel thyroiditis, extremely rare form of chronic inflammation of the thyroid gland, in which the glandular tissues assume a densely fibrous structure, interfering with production of thyroid hormone and compressing the adjacent trachea and esophagus. The thyroid becomes enlarged, often

  • struma lymphomatosa (pathology)

    Hashimoto disease, a noninfectious form of inflammation of the thyroid gland (thyroiditis). Hashimoto disease is an autoimmune disorder (i.e., the body reacts to its own tissues as though they were foreign substances). Its onset is insidious, with gradual enlargement of the thyroid gland (a

  • Struma River (river, Europe)

    Struma River, river in western Bulgaria and northeastern Greece, rising in the Vitosha Massif of the Rhodope Mountains in Bulgaria, southwest of Sofia. It follows a course of 258 miles (415 km) south-southeast via Pernik to the Aegean Sea, which it enters 30 miles (50 km) west-southwest of Kavála.

  • Strumen River (river, Europe)

    Pripet River, river in Ukraine and Belarus, a tributary of the Dnieper River. It is 480 miles (775 km) long and drains an area of 44,150 square miles (114,300 square km). It rises in northwestern Ukraine near the Polish border and flows eastward in Ukraine and then Belarus through a flat, forested,

  • Strummer, Joe (British musician)

    Joe Strummer, British punk rock star who gave voice to a generation of unrest as the leader of the Clash. The band’s passionate politicized sounds were largely due to Strummer’s commitment to a populist ideology. Strummer formed his first rhythm-and-blues band, the 101ers, in 1974. Influenced by

  • strung rattle (musical instrument)

    percussion instrument: Idiophones: Strung rattles are worn as leggings to emphasize a dancer’s movements, but when the strung material consists of a dead enemy’s teeth, as was the practice among the Brazilian Mundurukú, the rattle becomes a source of magic strength to the wearer; elsewhere, strung deer or…

  • Strungk, Nicolaus Adam (German composer)

    percussion instrument: Idiophones: …reappear in the German composer Nicolaus Adam Strungk’s opera Esther (1680) to provide local colour but seem not to have been in general use until the craze for Turkish Janissary music gripped Europe a century later. Christoph Gluck used cymbals in Iphigénie en Tauride (1779), as did Wolfgang Amadeus Mozart…

  • Struniiformes (fish order)

    crossopterygian: Form and function: The Struniiformes lived in the Devonian. Their bony remains indicate considerable differences from both the Rhipidistia and the Actinistia. The fossil remains indicate that they possessed the major characteristic of the subclass, however: the division of the cranium into an anterior and a posterior part.

  • Struss, Karl (American cinematographer)

    Dr. Jekyll and Mr. Hyde: Rouben Mamoulian and cinematographer Karl Struss never fully revealed how they accomplished the transformation scenes, which have continued to impress viewers. March received an Academy Award for his critically acclaimed performance as the dual characters. After the Hays Production Code came into full effect, the film was shorn of…

  • strut shock absorber (mechanics)

    shock absorber: The direct-acting, or strut, type is attached to the vehicle frame and the axle by two eyes. One eye is attached to a piston that slides in an oil-filled cylinder attached to the other eye. Any relative motion between the frame and the axle causes the piston to…

  • Struth, Bill (Scottish football manager)

    Rangers: …two men, William Wilton and Bill Struth. Under Struth, who led the team for 34 seasons, Rangers won 18 league championships as well as 10 Scottish Cups. Rangers’ 54 total Scottish league championships—including one shared with Dumbarton FC in 1891—is more than any other team. The club has also won…

  • Struth, Thomas (German photographer)

    Thomas Struth, German photographer known best for his series Museum Photographs, monumental colour images of people viewing canonical works of art in museums. His photographs are characterized by their lush colour and extreme attention to detail, which, because of their large size—often measuring

  • Struthers, Sally (American actress)

    All in the Family: …liberal married to Gloria (Sally Struthers). While Mike’s sympathies are the opposite of Archie’s, they are equally vocal and antagonistic.

  • Struthidea cinerea (bird)

    Grallinidae: …Passeriformes) that includes the mudlark, apostle bird, and white-winged chough. The four species, generally restricted to Australia and New Zealand, are 19 to 50 cm (7.5 to 20 inches) long. They are sometimes called mudnest builders, because high in a tree they make bowl-shaped nests of mud, using hair, grass,…

  • Struthio camelus (bird)

    Ostrich, (Struthio camelus), large flightless bird found only in open country in Africa. The largest living bird, an adult male may be 2.75 metres (about 9 feet) tall—almost half of its height is neck—and weigh more than 150 kg (330 pounds); the female is somewhat smaller. The ostrich’s egg,

  • Struthio camelus camelus (bird)

    ostrich: Most familiar is the North African ostrich, S. camelus camelus, ranging, in much-reduced numbers, from Morocco to Sudan. Ostriches also live in eastern and southern Africa. The Syrian ostrich (S. camelus syriacus) of Syria and Arabia became extinct in 1941. The ostrich is the only living species in the…

  • Struthio camelus syriacus (extinct bird)

    ostrich: The Syrian ostrich (S. camelus syriacus) of Syria and Arabia became extinct in 1941. The ostrich is the only living species in the genus Struthio. Ostriches are the only members of the family Struthionidae in the order Struthioniformes—a group that also contains kiwis, emus, cassowaries, and…

  • Struthiomimus (dinosaur genus)

    Struthiomimus, (genus Struthiomimus), ostrichlike dinosaurs found as fossils from the Late Cretaceous Period (99 million to 65 million years ago) in North America. Struthiomimus (meaning “ostrich mimic”) was about 2.5 metres (8 feet) long and was obviously adapted for rapid movement on strong,

  • struthioniform (bird order)

    bird: Annotated classification: Order Struthioniformes (ostriches, rheas, emus, cassowaries, and kiwis) 10 species in 6 families in Africa, South America, New Zealand,

  • Struthioniformes (bird order)

    bird: Annotated classification: Order Struthioniformes (ostriches, rheas, emus, cassowaries, and kiwis) 10 species in 6 families in Africa, South America, New Zealand,

  • Strutinskii’s hybrid model (physics)

    nuclear fission: Nuclear models and nuclear fission: …major breakthrough occurred when a hybrid model incorporating shell effects as a correction to the potential energy of the liquid-drop model was proposed by the Russian physicist V.M. Strutinskii in 1967. This approach retains the dominant collective surface and Coulomb effects while adding shell and pairing corrections that depend on…

  • Strutinskii, V. M. (Soviet physicist)

    nuclear fission: Nuclear models and nuclear fission: …proposed by the Russian physicist V.M. Strutinskii in 1967. This approach retains the dominant collective surface and Coulomb effects while adding shell and pairing corrections that depend on deformation. Shell corrections of several million electron volts are calculated, and these can have a significant effect on a liquid-drop barrier of…

  • Strutt, John William (British scientist)

    Lord Rayleigh, English physical scientist who made fundamental discoveries in the fields of acoustics and optics that are basic to the theory of wave propagation in fluids. He received the Nobel Prize for Physics in 1904 for his successful isolation of argon, an inert atmospheric gas. Strutt

  • Struve, Friedrich Georg Wilhelm von (Russian astronomer)

    Friedrich Georg Wilhelm von Struve, one of the greatest 19th-century astronomers and the first in a line of four generations of distinguished astronomers, who founded the modern study of binary stars. To avoid conscription by the Napoleonic armies, Struve left Germany in 1808 and went first to

Your preference has been recorded
Check out Britannica's new site for parents!
Subscribe Today!
色色影院-色色影院app下载