Professional/specialist Famous Names Starting with Letter P

Is a social scientist who has been living in Colombia since 1979, and has been working on the countr

Is a social scientist who has been living in Colombia since 1979, and has been working on the country’s rural problems. He has undertaken in Colombia, his adopted country, several studies of rural economy, sociology and history. He also has been teaching at university subjects related to these topics to students in economics, rural development and forestry.

Is a French mathematician at the École des Hautes Études en Sciences Sociales (Paris). He is parti

Is a French mathematician at the École des Hautes Études en Sciences Sociales (Paris). He is particularly active in graph theory and recognized for his work on planar graphs and graph drawing. The Fraysseix-Rosenstiehl's planarity criterion is at the origin of the left-right planarity algorithm implemented in Pigale software, which is considered as the fastest implemented planarity testing algorithm [1]

Was a French mathematician, known for his work in commutative algebra and its applications to algebr

Was a French mathematician, known for his work in commutative algebra and its applications to algebraic geometry. The two-volume work Commutative Algebra that he wrote with Oscar Zariski is a classic. Other books of his covered projective geometry and algebraic number theory. He ran a Paris seminar during the 1960s, and became Professeur émérite at the Université Paris-Sud (Orsay).

Was a French noblemen, writer, economist, and government official, who was the father of Eleuthère

Was a French noblemen, writer, economist, and government official, who was the father of Eleuthère Irénée du Pont, the founder of E.I. duPont de Nemours and Company and progenitor of one of America's richest business dynasties of the 19th and 20th centuries.

Was a French Cartesian philosopher and a prominent critic of Spinoza.[1]

Was a French Cartesian philosopher and a prominent critic of Spinoza.[1]

Was a French mathematician. He was educated at the Jesuit College and the University in Caen, where

Was a French mathematician. He was educated at the Jesuit College and the University in Caen, where he received his M.A. in 1682. He took Holy Orders the following year.

Was a French mathematician and instrument inventor. He was inventor and eponym of the vernier scale

Was a French mathematician and instrument inventor. He was inventor and eponym of the vernier scale used in measuring devices. At Brussels, in 1631, he published , his treatise "La construction, l'usage, et les propriétés du quadrant nouveau de mathematiques", and dedicated it to the Infanta. In it he described the ingenious device which now bears his name, the Vernier scale.

Is a philosopher and director of research at the French National Centre for Scientific Research in a

Is a philosopher and director of research at the French National Centre for Scientific Research in an Institut d'Etudes Politiques de Paris laboratory, the CEVIPOF. He is also a member of the Cercle de l'Oratoire think tank.[1]

Was a French mathematician and engineer, who worked on fluids. Girard worked as an engineer at the École Nationale des Ponts et Chaussées. He was in charge of planning and construction of the Amiens canal and the Ourcq canal. He collaborated with Gaspard de Prony on the Dictionnaire des Ponts et Chaussées (Dictionary of Bridges and Highways). He wrote works on fluids and on the strength of materials.

Is a Dutch linguist who lives in Bilthoven, Netherlands. He is the former vice-secretary of the Unio

Is a Dutch linguist who lives in Bilthoven, Netherlands. He is the former vice-secretary of the Union Mundial pro Interlingua and the chief lexicographer in the Interlingua community.

Is Professor of Interdisciplinary Studies at the Institute for Advanced Study, Princeton. He was bor

Is Professor of Interdisciplinary Studies at the Institute for Advanced Study, Princeton. He was born in Utrecht in The Netherlands.He is an accomplished astrophysicist, and well known for the Barnes–Hut simulation algorithm, which he developed together with Josh Barnes, which can significantly speed up the calculation of the gravitational motion of huge numbers of stars, allowing scientists to see what happens when for example two galaxies collide.

Is a professor in transport economics at the Vrije Universiteit, Amsterdam, and a fellow at the Tinb

Is a professor in transport economics at the Vrije Universiteit, Amsterdam, and a fellow at the Tinbergen Institute. He studied econometrics at Erasmus University, Rotterdam and received his PhD in economics at Vrije Universiteit, Amsterdam. Previously, he worked at the International Institute for Applied Systems Analysis, Austria, and was research co-ordinator at Universitas Kristen Satya Wacana in Salatiga, Indonesia. He is among the top researchers in economic geography according to IDEAS/RePEc.

Was a Dutch medical doctor and ichthyologist, famous for his work on the fishes of East Asia.He was

Was a Dutch medical doctor and ichthyologist, famous for his work on the fishes of East Asia.He was employed as a medical officer in the Dutch East Indian Army from 1842 to 1860, stationed in Indonesia. During that time, he did most of his ichthyology work, besides his duties in the army. Many of his specimen he got from local fishermen, but he also built up an extended network of contacts who would send him specimen from various government outposts throughout the islands.During his time in Indonesia, he collected well over 12000 specimen, many of which are today at the Natural History Museum in Leiden.

Was a Dutch physician and naturalist.Boddaert was the son of a Middelburg jurist and poet by the sam

Was a Dutch physician and naturalist.Boddaert was the son of a Middelburg jurist and poet by the same name (1694-1760). Pieter Jr obtained his M.D. at the University of Utrecht in 1764 and there became a lecturer on natural history. Fourteen letters survive of his correspondence with Carl Linnaeus between 1768 and 1775 [2]. He was a friend of Albert Schlosser, who's cabinet of "curiosities" (natural history objects) he described. In 1783 he published fifty copies of an identification key of Edmé-Louis Daubenton's Planches enluminees, assigning scientific names to the plates. As many of these were the first scientific names to be proposed they remain in use.

Was a Dutch philologist, born at Amsterdam.He was brought up by his uncle in Leiden, and afterwards

Was a Dutch philologist, born at Amsterdam.He was brought up by his uncle in Leiden, and afterwards studied law and philology under CA Duker and Arnold von Drakenborch at Utrecht. In 1735 he was appointed professor of eloquence and history at Franeker, with which the chair of poetry was combined in 1741. In the following year he left Franeker for Amsterdam to become professor of history and philology at the Athenaeum. He was subsequently professor of poetry (1744),

Was a Dutch navigator (originally from Emden) who mapped the southern sky.After several trips to Bra

Was a Dutch navigator (originally from Emden) who mapped the southern sky.After several trips to Brazil, Keyser participated as a first mate and the chief navigator of the first Dutch voyage to the East Indies (the "Eerste Schipvaart"), which left Texel with four ships on April 2, 1595. He had been specifically trained by Petrus Plancius to map the southern stars. When the fleet finally was able to obtain fresh supplies at Madagascar on September 13, 71 of the 248 sailors had died, most of scurvy.

Was a Dutch mathematician known for his work on regular polytopes and Euclidean geometry.

Was a Dutch mathematician known for his work on regular polytopes and Euclidean geometry.

Was a Dutch astronomer.He was the co-administrator, along with Jan Oort, of the Leiden Observatory i

Was a Dutch astronomer.He was the co-administrator, along with Jan Oort, of the Leiden Observatory in the Netherlands.He published papers were primarily in regard to variable stars and photometry. He is most noted for observing in 1939 that there appear to be two populations of globular clusters based on the periodicities of their RR Lyrae variable stars.[1] These two populations would come to be known as Oosterhoff groups after him.Between 1951 and 1952 he served as assistant general secretary of the International Astronomical Union, and served as general secretary from 1952 until 1958. In 1954 he was one of twelve European astronomers who drafted a statement that would lead to the formation of the ESO.

Was an Italian astronomer. He was Director of the Observatory at the Pontifical Gregorian University

Was an Italian astronomer. He was Director of the Observatory at the Pontifical Gregorian University (then called the Roman College) for 28 years. He was a pioneer in astronomical spectroscopy, and was one of the first scientists to state authoritatively that the Sun is a star.where he studied at the Jesuit gymnasium. At the age of 16, he entered the Jesuit Order in Rome. He continued his studies at the Roman College, and demonstrated great scientific ability. In 1839, he was appointed tutor of mathematics and physics at the College. In 1841, he became Professor of Physics at the Jesuit College in Loreto. In 1844 he began theological studies in Rome, and was ordained a priest on 12 September 1847. In 1848, due to the Roman Revolution, the Jesuits had to leave Rome. Fr. Secchi spent the next two years in Britain and the United States,

Was a Polish philosopher, literary historian and critic.[1]Chmielowski was the outstanding student a

Was a Polish philosopher, literary historian and critic.[1]Chmielowski was the outstanding student and critic of literature during Poland's Positivist period. He advocated social utilitarianism in literature, and the realistic treatment of social reality. As a historian he was influenced by the philosophical and esthetic concepts of the French critic Hippolyte Taine, and studied the relations between writers' works and their social and cultural milieus, seeking the expressions of those relations chiefly in the works' ideological concerns.[4]

Is a Polish philosopher, vitalist, professor of philosophy at the Jesuit University of Philosophy an

Is a Polish philosopher, vitalist, professor of philosophy at the Jesuit University of Philosophy and Education Ignatianum, jesuit.His main interests evolves around philosophy of biology including integration of biological phenomena, theory of the genetic program, aristotelian theory of biological substance, cognitive aspects of biological dynamisms, problems of biological observation, experimentation and concept formation, and reconstruction of fossil hominids.

Was a Polish philosopher and teacher who was born into a family of expatriates during the Partitions

Was a Polish philosopher and teacher who was born into a family of expatriates during the Partitions of Poland.Before Poland's return to independence, Massonius wrote for the Polish-language St. Petersburg weekly Kraj and contributed to the Polish-language periodicals Glos, Tygodnik Ilustrowany, Wisla, Gazeta Warszawska and Gazeta Polska. In 1897-1914 he served on the editorial board of Przeglad Filozoficzny (The Philosophical Review). In 1906 Massonius was elected to Russia's first National Duma. In 1906-14 he lectured at Warsaw's Flying University, and in 1920-32, as a professor he conducted courses in philosophy and pedagogy at Stefan Batory University in Vilnius, then part of the Second Polish Republic; in these, he focused on epistemology and aesthetics. He became dean of the Humanities Department there. His writings included a collection of philosophical essays, and Polish translations of Western philosophers such as Kant, Tardieu and Schopenhauer.[2]

Was a Classical Greek philosopher, who together with his teacher, Socrates, and his student, Aristot

Was a Classical Greek philosopher, who together with his teacher, Socrates, and his student, Aristotle, helped to lay the philosophical foundations of Western culture.[2] Plato was also a mathematician, writer of philosophical dialogues, and founder of the Academy in Athens, the first institution of higher learning in the western world. Plato was originally a student of Socrates, and was as much influenced by his thinking as by what he saw as his teacher's unjust death.

Was a noted Ukrainian astronomer, mathematician, and logician. Poretsky invented "logical calculus"

Was a noted Ukrainian astronomer, mathematician, and logician. Poretsky invented "logical calculus" and applied it to the theory of probability. Additionally, he extended and augmented the works of mathematicians Boole, Jevons and Schröder.

Was a major philosopher of the ancient world who is widely considered the founder of Neoplatonism (a

Was a major philosopher of the ancient world who is widely considered the founder of Neoplatonism (along with his teacher Ammonius Saccas.) Much of our biographical information about him comes from Porphyry's preface to his edition of Plotinus' Enneads. His metaphysical writings have inspired centuries of Pagan, Christian, Jewish, Islamic and Gnostic metaphysicians and mystics.