Behavior therapy is a form of psychotherapy used to treat depression, anxiety disorders, phobias, and other forms of psychopathology. Its philosophical roots can be found in the school of behaviorism, which states that psychological matters can be studied scientifically by observing overt behavior, without discussing internal mental states.
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Parthenogenesis is a form of asexual reproduction in which offspring develop from unfertilized eggs. A common mode of reproduction in arthropods, such as insects and arachnids, parthenogenesis also occurs in some species of fish, amphibians, and reptiles. Parthenogenesis is part of the wide diversity of adaptations found in nature, securing the perpetuation of the lineage of organisms.
Previous (Elmore James) Next (Elton John) Elsie Worthington Clews Parsons (November 27, 1875 - December 19, 1941) was an American sociologist and anthropologist. Her studies on Pueblo Indians are regarded as the most comprehensive work on this tribe, and her studies of West Indian and African American folklore are considered vital materials in the field.
Boris Leonidovich Pasternak ( Борис Леонидович Пастернак ) (February 10, 1890 - May 30, 1960) was a Russian poet and writer best known in the West for his monumental tragic novel on Soviet Russia, Doctor Zhivago (1957). It is as a poet, however, that he is most celebrated in Russia. My Sister Life, written by Pasternak in 1917, is arguably the most influential collection of poetry published in Russian in the twentieth century.
Pier Paolo Pasolini (March 5, 1922 - November 2, 1975) was an Italian poet, intellectual, film director, and writer. Pasolini distinguished himself as a philosopher, linguist, novelist, playwright, filmmaker, newspaper and magazine columnist, actor, painter and political figure. He demonstrated a unique and extraordinary cultural versatility, in the process becoming a highly controversial figure.
Blaise Pascal (June 19, 1623 - August 19, 1662) was a French mathematician, physicist, and religious philosopher. Pascal was a child prodigy, who was educated by his father. Pascal's earliest work was in the natural and applied sciences, where he made important contributions to the construction of mechanical calculators and the study of fluids, and clarified the concepts of pressure and vacuum by expanding the work of Evangelista Torricelli.
Parsnip is a hardy, biennial, strongly-scented plant (Pastinaca sativa) , which is a member of the parsley family (Apiaceae or Umbelliferae), which also includes the carrot. The term parsnip also applies to the long, edible, white taproot of this plant, which is eaten as a vegetable. Parsnips resemble carrots, but are paler and have a stronger flavor.
Pashtuns (Pashto/Urdu/Persian: پشتون Paštūn or پختون Paxtūn , also rendered as Pushtuns , Pakhtuns , Pukhtuns ), also called Pathans (Urdu: پٹھان , Hindi: पठान Paṭhān ) or ethnic Afghans (Pashto: افغان Afğān )  represent an Eastern Iranian ethno-linguistic group with populations primarily in eastern and southern Afghanistan and in the North-West Frontier Province, Federally Administered Tribal Areas and Balochistan provinces of western Pakistan.
Previous (Particulate) Next (Partition of Bengal (1947)) Map of Eastern Bengal and Assam province The Partition of Bengal in 1905, was made on October 16, by then Viceroy of India, Lord Curzon. Partition was promoted for administrative regions; Bengal was as large as France but with a significantly larger population.
Previous (Passion (Christianity)) Next (Passover) Contemporary passion play in Italy A Passion play is a dramatic presentation depicting the Passion of Christ. It includes the trial, suffering, and death of Jesus of Nazareth. Historically, Passion plays grew out of the liturgy of the Catholic Church and developed into elaborate performances covering the entire history of God's providence of human redemption.
Particulates, also referred to as particulate matter (PM), aerosols, or fine particles, are tiny particles of solid or liquid suspended in a gas. They range in size from less than 10 nanometers to more than 100 micrometers in diameter. The field of aerosol science and technology has grown in response to the need to understand and control aerosols in the atmosphere.
Previous (Parthenon) Next (Particle physics) A proton and anti-proton colliding in a high-energy accelerator. Their mass-energy and kinetic energy have been transformed into a shower of all kinds of particles. The basic principle behind the particle accelerator is simple: Collide things together at high energy and detect what comes out.
Previous (Partition of Bengal (1905)) Next (Partition of Ireland) The Partition of Bengal in 1947 divided Bengal into the two separate entities of West Bengal belonging to India, and East Bengal belonging to Pakistan. This was part of the Partition of India and officially took place during August 14-August 15, 1947.
Passover ( Pesach , Pesakh )-also called the Festival of Unleavened Bread -is a Jewish holiday commemorating the Exodus and the freedom of the Israelites from ancient Egypt. It begins on the fifteenth day of Nisan (on the Hebrew calendar), normally in the early spring. The name Passover (Pesakh, meaning "skipping" or passing over) derives from the night of the Tenth Plague, when the Angel of Death saw the blood of the Passover lamb on the door-posts of the houses of Israel and "skipped over" them (Exodus 12), refraining from killing their firstborn.
Sir William Paterson (April, 1655 - January 22, 1719) was a Scottish merchant and banker, the founder of the Bank of England and an initiator of the Bank of Scotland. He wrote on economic issues, in favor of free trade considerably before Adam Smith's Wealth of Nations . His ideas of international trade across Panama were an early precursor to the development of the Panama Canal.
Passenger pigeon is the common name for an extinct migratory bird, Ectopistes migratorius, of the Columbidae family, that was a very common bird in North America as recently as the mid-nineteenth century. These short-billed, small-headed, social pigeons, about one foot long and with a long-pointed tail, lived in enormous flocks.
Previous (Partition of Bengal (1947)) Next (Parvati) Northern and Southern Ireland. The Partition of Ireland took place on May 3, 1921 under the Government of Ireland Act 1920. The entire island of Ireland provisionally became the Irish Free State on December 6, 1922. However, the Parliament of Northern Ireland exercised its right to opt out of the new Dominion the following day.
Alicia Patterson (October 15, 1906 - July 2, 1963) was the founder and editor of Newsday, one of the most successful post-war newspapers in the 1940s. The daughter of Joseph Medill Patterson, the founder of the New York Daily News, and the great-granddaughter of Joseph Medill, owner of the Chicago Tribune and mayor of Chicago, Patterson found her calling late in life when her third husband, Harry Guggenheim, encouraged her to pursue news editing as a way to keep busy; Patterson quickly found her own niche in a family full of successful publishers.
Paternalism refers to acting for the good of another person against their will or without their consent (most commonly by the law, but also in familial, educational, medical, and other contexts). To act in such away presumes that the person or persons who are interfering with the other's actions are in a better position to know what is good for them than they are themselves.
Octavio Paz Lozano (March 31, 1914 - April 19, 1998) was a Mexican writer, poet, and diplomat, and the winner of the 1990 Nobel Prize in Literature. He was one of the most important literary figures of the postwar period in Latin America. He founded and edited several prominent literary and political journals.
Previous (Eldridge Cleaver) Next (Eleanor Roosevelt) Eleanor Josephine Medill "Cissy" Patterson (November 7, 1881 - July 24, 1948) was an American journalist and newspaper editor, publisher, and owner. Patterson was one of the first women to head a major daily newspaper, the Washington Times-Herald , in Washington, D.