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COUNTER - 7 reference results
scintillation counter, device for detecting and measuring radiation by means of tiny visible flashes produced by the radiation when it strikes a sensitive substance known as a phosphor (see phosphorescence). Phosphors used in scintillation counters include zinc sulfide, sodium iodide, various liquids, and organic phosphors. The individual flashes are caused by absorption and reemission of radiation by the phosphor. They may be amplified by photomultiplier devices or amplified and converted to an electrical signal by photoemissive substances (see photoelectric effect). Scintillation counters may be used to detect the various types of radioactivity (alpha, beta, and gamma rays), cosmic rays, and various elementary particles.
over-the-counter, method of buying and selling securities outside the organized stock exchange. Unlike an organized stock exchange, the over-the-counter market is composed of dealers who negotiate most transactions by telephone and computer. For the most part, dealers purchase stocks for their own account and sell them to customers at a markup over wholesale prices. Over-the-counter trading represents the single largest securities market in the United States today; it includes almost all U.S. government securities and municipal and corporate bonds, as well as most commercial bank and insurance company stocks. Today, most over-the-counter dealing in the United States is done through an extensive computer network, called the National Association of Securities Dealers Automated Quotations (Nasdaq). In recent years, a number of companies that would be eligible for listing on the New York Stock Exchange have opted to remain in the over-the-counter market. In 1998, Nasdaq trading totalled $5.8 trillion, making it the second largest securities market in the world.
Geiger counter or Geiger-Müller (G-M) counter, instrument for the detection and quantitative determination of ionizing radiation such as the alpha and beta rays given off by radioactive minerals and cosmic rays. It was first developed by Hans Geiger and later improved by Geiger and A. Müller. Variously designed for different uses, it consists commonly of a gas-filled metal cylinder that acts as one electrode, and a needle or thin taut wire along the axis of the cylinder that acts as the other electrode. Glass caps used to seal the ends of the tube serve as insulators. A voltage applied to the device is so adjusted that it is almost strong enough to cause a current to pass through the gas from one electrode to the other. The gas becomes ionized whenever the counter is brought near radioactive substances, however little the quantity and however faint the emanations. The resulting ionized particles of gas are able to carry the current from one electrode to the other, thus completing a circuit. Once established, the current is amplified by an electronic device so that it can indicate by an audible click the presence of ionized particles. The gas quickly returns to its normal nonionized state, permitting each new particle or ray to register, making counting possible. The instrument can also register ionization by a pointer and scale called a rate meter. The Geiger counter is used in the detection of cosmic rays and for locating radioactive minerals. Counters enable radioactive tracers to be followed as they make their way through complex organisms such as the human body; in medicine Geiger counters have found several successful uses in the location of malignancies. They are used also to follow radioactive isotopes in chemical reactions. For a number of research applications the Geiger counter has been largely replaced by scintillometers and other more complex devices.
Counter Reformation, 16th-century reformation that arose largely in answer to the Protestant Reformation; sometimes called the Catholic Reformation. Although the Roman Catholic reformers shared the Protestants' revulsion at the corrupt conditions in the church, there was present none of the tradition breaking that characterized Protestantism. The Counter Reformation was led by conservative forces whose aim was both to reform the church and to secure the its traditions against the innovations of Protestant theology and against the more liberalizing effects of the Renaissance.

Origins of the Counter Reformation

Since the time of St. Catherine of Siena (14th cent.) there had been a growing demand for reform—of the clergy, of Christian life, and of ecclesiastical administration. Probably the Great Schism did more than anything else to prevent change, for in its duration ecclesiastical politics preoccupied those who might have been busy with reform. In the 15th cent. the papacy was too weak to lead any movement, much less a drastic reform of the kind called for by Girolamo Savonarola. A key factor in the stagnation in Christendom was the general worldliness and negligence of the prelates who—with their kings and princes—really ran the church. Such was their power that in the only vigorous papal effort at reform of the century, the mission of Nicholas of Cusa in Germany (1451), the papal legate dared not touch the bishops. At the time the most publicized scandal was the immoral Renaissance papal court.

Of all the evils the papal scandal proved to be the easiest remedied, once it was attacked by Paul IV. Before he became pope, Paul was (as Cardinal Carafa), with St. Cajetan (1480-1547) and others, a member of a small reform party at Rome. The nucleus was a society of priests and laymen, the Oratory of Divine Love, founded (1497) at Genoa for charitable work and then extended as a spiritual movement in the Curia itself. The reformers in Rome were helped from abroad by men of the prestige of St. Thomas More, Erasmus, St. John Fisher, and Cardinal Jiménez.

However, the first major reform efforts failed; these were the Fifth Lateran Council (see Lateran Council, Fifth) and the election of Adrian VI, who died too soon to accomplish anything. In the next pontificate (Clement VII, 1523-34) the reform party worked on quietly, forming the core of resistance to Lutheranism; they founded the Theatines (1524) and the Capuchins (1525), religious orders to evangelize the common people. Meanwhile Protestantism expanded, and the sack of Rome (1527) convinced even the most complacent cardinals that political gambling was a danger to the church. The influence of Holy Roman Emperor Charles V weighed on the side of reform.

Phases of the Counter Reformation

In 1534, Paul III became pope, and St. Ignatius of Loyola and his friends took the vows that founded the Jesuits (see Jesus, Society of). Thus simultaneously (but quite independently) the reformers finally won the papacy, and the pope was provided with a resolute band of helpers. In 1545, after delay and miscarriage, the Council of Trent (see Trent, Council of) was convened by Paul III. This council (1545-47, 1551-52, 1562-63) was the central event of the Counter Reformation. The popes of the council were Paul III, Julius III, and Pius IV. The reign of Pius's predecessor, Paul IV, an interlude in the council, was devoted to the purge of the papal court; from Paul's work dates the quasi-monastic air that has ever since characterized the Vatican.

The end of the council (1563) opened the second period of the reformation, lasting until 1590, with the pontificates of St. Pius V, Gregory XIII, and Sixtus V. The work of the council was given effect. The chief evil in church life, simony in many forms, including the preaching of some indulgences, was uprooted. Worship was standardized; the law of the church and the government of the Holy See were reorganized; new educational requirements for parish priests were introduced and provided for (by diocesan seminaries); religious orders were reformed; and the life of the clergy was scrutinized. A new spirit began to breathe in the church, as seen in the work of St. Charles Borromeo. In the Papal States and in a few other lands the new Inquisition was extended.

A far-reaching local movement in the reformation was the Oratory (see Oratory, Congregation of the) of St. Philip Neri. Catholicism took the offensive in Europe, and the Jesuits and Capuchins helped win Austria, Poland, the S Netherlands, and parts of Germany, Hungary, and Bohemia back to the Roman Catholic Church. The Jesuits led in foreign missions; in America it was the spirit of the Counter Reformation that led the missionaries to work for the Native Americans, often in opposition to the secular authorities. Spanish religion was deepened by the Carmelite reforms of St. Theresa of Ávila and by St. John of the Cross.

In France the Counter Reformation took root later, after the accession and conversion to Catholicism of Henry IV; the great French figures were St. Francis de Sales and St. Vincent de Paul. In England the Counter Reformation took effect less in the restoration of the Roman Catholic Church under Queen Mary (although Cardinal Pole was a reformer) than in the mission of the Jesuits (1580), led by St. Edmund Campion and Robert Persons. Diverse figures showing effects of the Counter Reformation are Caesar Baronius, St. Robert Bellarmine, Pedro Calderón de la Barca, Richard Crashaw, St. Francis Borgia, Robert Southwell, and Torquato Tasso.

Bibliography

See M. R. O'Connell, The Counter Reformation 1559-1610 (1974); J. C. Olin, Catholic Reform (1990).

Trading in stocks and bonds that does not take place on stock exchanges. Such trading occurs most often in the U.S., where requirements for listing stocks on the exchanges are strict. Schedules of fees for buying and selling securities are not fixed in the over-the-counter market, and dealers derive their profits from the markup of their selling price over the price they paid. Many bond issues and preferred-stock issues, including U.S. government bonds, are listed on the New York Stock Exchange but have their chief market over-the-counter. Other U.S. government securities, as well as state and municipal bonds, are traded over-the-counter exclusively. Institutional investors such as mutual funds often trade over-the-counter because they are given volume discounts not offered on the exchanges. The regulation of the over-the-counter market is carried out largely by the National Association of Securities Dealers, created by Congress in 1939 to establish rules of conduct and protect members and investors from abuses. Seealso NASDAQ.

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Adult male alto voice, either natural or falsetto. Some writers use the term only for the natural high tenor, preferring “male alto” for the falsetto voice. Like the castrato tradition, the countertenor developed as a result of the prohibition on women taking part in church choirs. Since the falsetto voice lacks power, it was little used in opera. The countertenor tradition was preserved in the English cathedral choir. Today it is again being widely cultivated internationally, primarily for Renaissance and Baroque music.

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