Raymond IV
Raymond IV c.1038-1105, count of Toulouse (1093-1105), leader in the First Crusade (see Crusades ). He was also count of Saint Gilles and marquis of Provence. The first great prince to take the Cross, he was the chief planner and organizer of the expedition. He refused to follow Bohemond I and Godfrey of Bouillon in swearing fealty to the Byzantine emperor Alexius I , confining himself to a promise (1097) to do no injury to the emperor's life or honor. Raymond distinguished himself at the sieges of Nicaea, Antioch, and Jerusalem, but quarreled (in vain) with Bohemond over the possession of Antioch. Having refused the title king of Jerusalem, he fought at Ashkelon (1099). Unable to protect his city of Laodicea against Bohemond, he went to Constantinople to seek the aid of Alexius. Subsequently he was held prisoner by Tancred , who was acting as regent for Bohemond. At the end of his life, with Byzantine support, he laid siege to Tripoli, which was finally formed into a county by his descendants.
Bibliography: See biography by J. H. Hill and L. L. Hill (1962).
Cite this article
Pick a style below, and copy the text for your bibliography.
|
MICROSCOPIC ATOMIC BOMB SNUFFS OUT CELLS RADIOACTIVE ACTINIUM HOOKED TO TUMOR-ORIENTED ANTIBODIES CURED MICE OF PROSTATE CANCER.(Brief Article)
Magazine article from: BIOWORLD Today; 11/16/2001; ; 700+ words
; ...particles. So the deal with actinium is it doesn't give you one...Scheinberg's words: "When actinium decays, it produces a series of three daughter atoms, each...blasting alpha particle. So actinium gives you four times the punch...
|
|
Nanogenerator Delivers Radioactivity Directly To Cancer Cell.(Brief Article)
Newspaper article from: Cancer Weekly; 12/11/2001; 700+ words
; ...cells. Inside the cell, the actinium decays by giving off (alpha...through the cell and destroy it. Actinium's decay produces a series of three "daughter" atoms...generators also helps to contain actinium's toxic decay daughters within...
|
|
Molecular 'Nanogenerator' Developed That Can Target Cancer Cells and Destroy Them.
News Wire article from: Ascribe Higher Education News Service; 11/15/2001; 700+ words
; ...atom contained inside the nanogenerator is actinium-225. Actinium decays by giving off short-lived, high...and destroy their DNA and proteins. When actinium decays, it produces a series of three daughter atoms each of which gives...
|
|
Tiny nuclear bomb is latest weapon in tackling cancer
Newspaper article from: The Scotsman; 11/17/2001; ; 651 words
; ...both effective and safe. At the heart of each "bomb" is an atom of the radioactive element actinium-225. When actinium decays, it produces a series of three daughter atoms, each of which gives off its own explosive alpha particle. Targeting...
|
|
ACTINIDE RESEARCH IN REVIEWS OF MODERN PHYSICS
News Wire article from: US Fed News Service, Including US State News; 7/8/2009; 655 words
; ...15 chemical elements that lie between actinium and lawrencium included on the periodic...atomic numbers 89-103. The actinide series derives its name from the first element in the series, actinium. The 5f states are complicated electron...
|
|
|
LAWRENCE LIVERMORE NATIONAL LABORATORY PUBLISHES ACTINIDE RESEARCH IN REVIEWS OF MODERN PHYSICS
News Wire article from: US Fed News Service, Including US State News; 2/16/2009; 700+ words
; ...15 chemical elements that lie between actinium and lawrencium included on the periodic...atomic numbers 89-103. The actinide series derives its name from the first element in the series, actinium. The 5f states are complicated electron...
|
|
Pacific Northwest National Laboratory Recognized for Commercializing Technologies.
News Wire article from: AScribe Business & Economics News Service; 3/1/2004; 700+ words
; ...spectrometry capabilities, the Electrodynamic Ion Funnel uses a series of ring electrodes of increasingly smaller size in combination...of alpha particle-emitting radioactive isotopes, such as actinium-225 and bismuth-213, with monoclonal antibodies that bind...
|
|
DEPARTMENT OF ENERGY National Nuclear Security Administration Notice of Availability of the Draft Environmental Impact Statement for the Proposed Chemistry and Metallurgy Research Building Replacement Project at Los Alamos National Laboratory, Los Alamos, NM.
News Wire article from: FedNet Government News; 5/15/2003; 699 words
; ...critical analytical chemistry, material characterization and actinide (actinides are any of a series of elements with atomic numbers ranging from actinium-89 through lawrencium-103) research and development capabilities. The Draft CMRR EIS...
|
|
ENERGY EMPLOYEES OCCUPATIONAL ILLNESS COMPENSATION PROGRAM:DENISE BROCK
Transcript from: Congressional Testimony; 7/20/2006; 700+ words
; ...Louis, Missouri. I thank the Subcommittee for holding a series of hearings on the Energy Employees Occupational Illness Compensation...progeny, including significant amounts of Thorium-230, Actinium-227 and Protactinium-231. NIOSH has described Mallinckrodt...
|
|
|
Other News To Note.
Magazine article from: BIOWORLD Today; 11/3/2009; 700+ words
; ...In the transaction, the company sold 642,113 shares of Series A-1 convertible preferred stock, as well as warrants for...radionuclides. The data demonstrate that alpha particle-emitting actinium and radium radionuclides might be loaded into preformed PEG...
|
|
Actinium (revised)
Book article from: Chemical Elements: From Carbon to Krypton
...1859-1906). The third, actinium, was discovered in 1899 by...Debierne suggested the name actinium for the new element. The name...element discovered in this series was radon, a gas given off...Ernst Dorn (1848-1916). Actinium was discovered a second time...
|
|
actinium
Book article from: The Columbia Encyclopedia, Sixth Edition
...The other seven isotopes of actinium have very short half-lives...10 days to less than 1 min. Actinium is in Group 3 of the periodic...of members of the actinide series , of which it is usually considered...sesquioxide or sesquisulfide. Actinium was first recognized in 1899...
|
|
actinium series
Book article from: A Dictionary of Ecology
actinium series See decay series .
|
|
|
Francium (revised)
Book article from: Chemical Elements: From Carbon to Krypton
...Perey found that 99 percent of all actinium atoms decay into thorium . The...on was the radioactive decay of actinium. When actinium decays, it gives off radiation...element. As Perey studied this series of reactions, she made an interesting...
|
|
Actinides
Encyclopedia entry from: The Gale Encyclopedia of Science
...generic term that refers to a series of 15 radioactive chemical elements with atomic numbers 89 (actinium) through 103 (lawrencium...atomic number, the actinide series members are: actinium, thorium, protactinium, uranium...
|
