Le site de vulgarisation scientifique de l’Université de Liège. ULg, Université de Liège

Glossary

Vous trouverez dans ce glossaire les définitions de termes présents dans les différents articles, classés de manière alphabétique.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
J
Jackson, Michael (1958 - 2009)

Spotted as a child in the Jackson Five, it was through his solo career that Michael Jackson acquired a mythical and international aura. His album Thriller skilfully mixed several music genres and profited from the emergence of a deep media synergy, notably with the advent of music video clips on the private channel MTV, to become the biggest selling album of all time. Estimates today cite figures of around 110 million copies sold. Repeatedly involved in scandals linked to sordid child rape affairs and abusing plastic surgery, Michael Jackson died in 2009. He was aged 51.

Jacob, Max (1876-1944)

French poet born in Quimper and who died in the Drancy concentration camp in the north east Paris suburb. After having left his native Brittany he spent the first years of the century in Montmartre where he shared his bohemian lifestyle with Pablo Picasso, Francis Carco, André Salmon and Guillaume Apollinaire. Jewish by origin, he became a Catholic in 1909, a conversion which few years later led him to retire to the Saint-Benoît-sur-Loire abbey, where the German police would arrest him. His work is marked by the convergence of two major characteristics: on the one hand the fantastic, which abandons itself to verbal acrobatics and doesn’t forego the most unbridled burlesque (see Le Cornet à dés, a collection of poems in prose published in 1917); the other is an anguish which comes to the surface behind the mask of humour and inspires writings imbued with mysticism (Méditations religieuses, a posthumous collection, published in 1947).

Japonism

It was the French art critic Philippe Burty (1830-1890) who gave a name to the new movement interested in Japanese art, in 1872. He used the neologism in a series of articles that were published in the review “Le Renaissance Littéraire et Artistique”.

Jaspers, Karl (1883-1969)

A German psychiatrist and philosopher who suggested turning our attention to the form psychological symptoms took, and not just their content. In the field of philosophy he was interested in the concepts of transcendence (that which lies beyond the physical world) and existence. He also advocated for human rights and examined the question of German culpability in Nazi crimes. He was the first to integrate the notion of phenomenology into psychopathology, notably in his well-known book General Psychopathology (1913), which was published 100 years ago.

Jean le Rond d'Alembert (1717-1783)

A French mathematician and philosopher, co-editor (along with Denis Diderot) of the Encyclopedia. He is also known for his work on differential equations and partial derivatives.

Jean-Marie Floch

French semiotician (1947-2001) trained in semiotics by Algirdas Julien Greimas, who directed the visual semiotics workshop of the “Groupe de recherches sémio-linguistiques” (EHESS-CNRS) in Paris and taught at the architecture school of Versailles. His works had mainly to do with the analysis of advertising discourse and the semiotics of spaces and stylism. He is the author of Petites mythologies de l'œil et de l'esprit. Pour une sémiotique plastique (1985), Formes de l’empreinte (1986) and Identités visuelles (1995). He is noted for a refusal of all a priori categorisation or hierarchy among the arts and languages.

JEDEC

Joint Electronic Device Engineering Council. A standard setting body for the microelectronic industry based in the United States. It has in particular developed a standard concerning the DRAMs, applicable to the whole of the computer technology sector.

Jejunum

The jejunum is the central of the three divisions of the small intestine and lies between the duodenum and the ileum.

Jesuits

The Jesuit order, or the Society of Jesus, is a Catholic religious order founded by the Spanish gentleman soldier (hidalgo) Ignatius de Loyola (1491-1556) in 1534. It was approved by Pope Paul III in 1540. The main goal of the Society, whose motto is Ad majorem Dei gloriam (‘for the greater glory of God’) was the spreading of faith, in Christian territories through teaching and preaching, and in heathen countries through the establishment of missions, notably in China and India. The Jesuits played a vital role in the establishment of the Counter-Reformation (or Catholic Reformation) which tried to both prevent the expansion of Protestantism and to reform the Church. By 1640 the Society had already set up over 500 colleges in Europe. The Society was dissolved by Pope Clement XIV and was not re-established until 1814 by Pope Pius VII. Ignatius de Loyola was made a saint in 1622.

Jihad

An Arab word signifying struggle or supreme effort; a holy war to spread or to defend Islam.

Joel-Peter Witkin

American photographer born in New York in 1939; his work has visionary aspects and tends toward the abnormal, even monstrous, an artistic approach that gives horror a sublime beauty. This makes his images provocative, whether they are in colour or in black and white – they are lay icons, and he says they represent “the struggle for the redemption of souls”.

Jonas, Hans (1903-1993)

A German philosopher who, after having left Nazi Germany to join the Jewish Brigade in Palestine, under British command, definitively settled in the United States. In his main work, The Imperative of Responsibility, he outlines an ethical concept for use in the technological age which our societies have entered: before using a technology, it is imperative to envisage the harmful, even apocalyptic, consequences of its use, for the environment as much for the future generations. The ‘principle of precaution’ recommended by certain European directives is no stranger to this policy of warning.

Joplin, Janis (1943-1970)

A Californian singer active in the hippy movement. She was mainly inspired by the blues, blues rock, acid rock and folk music. In 1969 she took part in the Woodstock festival before dying following a heroin overdose in 1970. She was only twenty-seven years old.

Joseph II

In 1714 the Netherlands passed under the crown of the Austrian Hapsburgs. The Emperor from 1780, Joseph II (1741-1790), known as an ‘enlightened despot’, attacked traditions under the guise of modernising the Netherlands. The clergy became subject to the state, the administrative and justice systems were modernised, convents and pilgrimages were suppressed, the persecution of non-Catholics was brought to an end, and civil marriage and divorce were instituted. Imposed too brutally, Joseph II’s reforms led to the Brabant Revolution of 1787-1790.

Joule (J)

Unit of energy and quantity of heat corresponding to the work done when the point of application of a force of one newton is displaced through a distance of one metre in the direction of the force.

Joule effect

The transformation of electric energy into heat. This occurs whenever an electric current flows through a conductor. It's caused by the movement of electrons in the electric current which make the conductor's particles vibrate, thereby increasing its temperature. This effect increases with the square of the current intensity, the resistance of the conductor, and the time for which the current flows. During a short-circuit, the intensity of the current increases significantly. Since the thermal energy given off depends on the square of this intensity, we can understand how short-circuits can start fires.

Jouve, Pierre Jean (1887-1976)

French writer born in Arras and died in Paris. Begun in the wake of the unanimist movement theorised by Jules Romains – for whom creative literature should capture the feelings and emotions of the collective – his career changed tack over the course of the 1920s, following his discovery of the works of Freud first of all, and then his conversion to Catholicism. There were thus published poetry collections such as Noces (1931) and Sueurs de sang (1933) in which mystical interrogations rubbed shoulders with investigations of the unconscious and where, the moving fruit of ‘the stain of incarnation’, the forces of Good and Evil clash. His novels, of which the best known is Paulina 1880 (1925), bear witness to a similar angst and in a haughty language tap into reflections on Sin, Love and Death. He is also the author of essays on art and music and, during the Second World War, he was a figure who resisted Nazism.

Joyce, James

The Irish born writer (1882-1941), who ended up in self-imposed exile, an ambivalent state of mind which he sometimes revelled in, as much as one of geographical displacement, is one of the most influential writers known to literature, and is renowned for his novelistic innovation and as a towering figure in literary Modernism. To highlight his achievement it suffices to mention his novel Ulysses, published in 1922. This complex and challenging work, which is at the same time warm and humorous, has had a massive influence on literature ever since, both in terms of style and subject matter, and has been cited by many as the greatest novel ever written. Over the space of more than 600 pages, it deals in intimate detail and in innovative ways with a single day in the life of Leopold Bloom, its main protagonist, who lives in Dublin, also the city of Joyce’s birth. A city which in many ways possessed Joyce, in that he hardly wrote about anything else, despite the fact that he spent the majority of his adult life living elsewhere, notably in Paris and the Italian town of Trieste. Joyce is also the author of The Dubliners (1914) (a collection of short stories, though such a weak description hardly does justice to its monumental achievement), and two other novels, A Portrait of the Artist as a Young Man (1916) and Finnegan’s Wake (1939). The first was a ground breaking work which was initially much misunderstood, and Joyce was driven to despair by criticisms of it, saying that people tended to ignore the ‘young’ in the title, whilst his last novel has intrigued and inspired such notable scholars and philosophers as Jacques Lacan, Jacques Derrida and Andrew Norris.

July Monarchy

It follows the Restoration. It was brought into being through the liberal revolution of the 27th, 28th and 29th July, 1830 (known as ‘The Three Glorious Days’) which forced Charles X into exile. Within ten days Louis-Philippe of Orléans had consolidated his power and brushed aside any threats. At first known by the title ‘lieutenant-general of the country’ he was recognized ‘King of the French’ on 9th August 1830. A constitutional monarchy, the July Monarchy took as its emblem the tricolour blue-white-red flag. It was brought to an end during the 1848 February days which saw the second Republic founded and the inauguration of universal suffrage.

Liberty Leading the People - Eugène Delacroix (1830)

Jurisdiction

A body instituted to decide on legal disputes submitted to it; the ensemble of courts and tribunals.

Jurisprudence

The ensemble of legal decisions made on a particular subject area, in as such as they constitute one of the sources of law. Jurisprudence in effect shows how the judges apply the law, by essence general and abstract, to the particular and concrete cases which are submitted to them. To do jurisprudence: to be authoritative and serve as an example in a given case; creating a precedent.



© 2007 ULi�ge