[permalink] [id link]
The synthesis of bohrium was first attempted in 1976 by scientists at the Joint Institute for Nuclear Research at Dubna using this cold fusion reaction.
from
Wikipedia
Some Related Sentences
synthesis and bohrium
This section deals with the synthesis of nuclei of bohrium by so-called " cold " fusion reactions.
This section deals with the synthesis of nuclei of bohrium by so-called " hot " fusion reactions.
More recently, hot fusions pathways to bohrium have been re-investigated in order to allow for the synthesis of more long-lived, neutron rich isotopes to allow a first chemical study of bohrium.
As an alternative means of producing long-lived bohrium isotopes suitable for a chemical study, the synthesis of < sup > 267 </ sup > Bh and < sup > 266 </ sup > Bh were attempted in 1995 by the team at GSI using the highly asymmetric reaction using an einsteinium-254 target.
synthesis and was
And with the publication of E. T. Leeds' Archaeology Of The Anglo-Saxon Settlements the student was presented with an organized synthesis of the archaeological data then known.
As late as the 1840s, and despite Friedrich Wöhler's synthesis of urea in 1828, some chemists still believed in the doctrine of vitalism, according to which a special life-force was necessary to create organic compounds.
One of the more dramatic successes of his theory was his prediction of the existence of secondary and tertiary alcohols, a conjecture that was soon confirmed by the synthesis of these substances.
Hermann Kolbe was the first person to use the word synthesis in the present day meaning.
This was intended to be the nec plus ultra of reform opera, a completely new synthesis of poetry and music that was an 18th-century anticipation of the ideals of Richard Wagner.
The first complete synthesis of an alkaloid was achieved in 1886 by the German chemist Albert Ladenburg.
This was a culmination of the Russia — US collaboration on the synthesis of elements 113 to 118.
The first convincing synthesis was in 1981 by a German research team led by Peter Armbruster and Gottfried Münzenberg at the Gesellschaft für Schwerionenforschung ( Institute for Heavy Ion Research, GSI ) in Darmstadt using the Dubna reaction.
Bartók's style in his art music compositions was a synthesis of folk music, classicism, and modernism.
B. subtilis is the first bacterium for which the role of an actin-like cytoskeleton in cell shape determination and peptidoglycan synthesis was identified, and for which the entire set of peptidoglycan-synthesizing enzymes was localised.
Cardozo's new " rule " exists in no prior case, but is inferrable as a synthesis of the " thing of danger " principle stated in them, merely extending it to " foreseeable danger " even if " the purposes for which it was designed " were not themselves " a source of great danger.
DWNT synthesis on the gram-scale was first proposed in 2003 by the CCVD technique, from the selective reduction of oxide solutions in methane and hydrogen.
Californium can also be used in nuclear synthesis of higher mass elements ; ununoctium ( element 118 ) was synthesized by bombarding californium-249 atoms with calcium-48 ions.
It was also one of the first books in which the cosmological doctrines of Yinyang and the Five Phases were brought to a mature synthesis.
Further optimization of sulfuric acid technology resulted in the contact process in 1880s, and the Haber process was developed in 1909 – 1910 for ammonia synthesis.
This separation was ended however by the synthesis of urea from inorganic precursors by Friedrich Wöhler in 1828.
It was a work of synthesis, backed by his own personal observations on his travels.
The Fairlight CMI was the first sampling synthesizer, while the Synclavier was originally an FM synthesizer, not adding sampling synthesis until the 1980s.
It used FM synthesis and, although it was incapable of the sampling synthesis of the Fairlight CMI, its price was around $ 2, 000, putting it within range of a much larger number of musicians.
synthesis and first
Three separate sources were combined to form fr. 350, as mentioned above, including a prose paraphrase from Strabo that first needed to be restored to its original meter, a synthesis achieved by the united efforts of Otto Hoffmann, Karl Otfried Muller and Franz Heinrich Ludolf Ahrens.
During his time at the museum he produced numerous publications on bird taxonomy, and in 1942 his first book, Systematics and the Origin of Species, which completed the evolutionary synthesis started by Darwin.
The first commercially successful emerald synthesis process was that of Carroll Chatham.
Friedrich Wöhler ( 31 July 1800 – 23 September 1882 ) was a German chemist, best known for his synthesis of urea, but also the first to isolate several chemical elements.
In this first phase of his career, Lang alternated between art films such as Der Müde Tod (" The Weary Death ") and popular thrillers such as Die Spinnen (" The Spiders "), combining popular genres with Expressionist techniques to create an unprecedented synthesis of popular entertainment with art cinema.
The first synthesis by Marshall D. Gates, Jr. in 1952 is considered a classic in the field .. Several other syntheses were reported, notably by the research groups of Rice, Evans, Fuchs, Parker, Overman, Mulzer-Trauner, White, Taber, Trost, Fukuyama, Guillou and Stork.
Purines, however, are first synthesized from the sugar template onto which the ring synthesis occurs.
In 1907, total synthesis was commercialized for the first time by Gustaf Komppa with camphor.
* 1951 – Mexican chemist Luis E. Miramontes conducts the very last step of the first synthesis of norethisterone, the progestin that would later be used in one of the first two oral contraceptives.
Chemist John C. Sheehan at MIT completed the first total synthesis of penicillin and some of its analogs in the early 1950s, but his methods were not efficient for mass production.
Key enzymes that synthesize certain amino acids are not present in animals — such as aspartokinase, which catalyzes the first step in the synthesis of lysine, methionine, and threonine from aspartate.
In the first step of peptidoglycan synthesis, the glutamine, which is an amino acid, donates an amino group to a sugar, fructose 6-phosphate.
Studies of retroviruses led to the first demonstrated synthesis of DNA from RNA templates, a fundamental mode for transferring genetic material that occurs in both eukaryotes and prokaryotes.
The synthesis of rutherfordium was first attempted in 1964 by the team at Dubna using the hot fusion reaction of neon-22 projectiles with plutonium-242 targets:
In the first, more philosophically oriented phase, Steiner attempted to find a synthesis between science and mysticism ; his philosophical work of these years, which he termed spiritual science, sought to provide a connection between the cognitive path of Western philosophy and the inner and spiritual needs of the human being.
synthesis and attempted
If the Gospel of Barnabas is seen as an attempted synthesis of elements from both Christianity and Islam, then 16th and 17th century parallels can be suggested in Morisco and anti-Trinitarian writings.
Important future experiments will involve the attempted synthesis of hassium isotopes in this symmetric reaction using the fission fragments.
In Psychology, Dewey attempted a synthesis between idealism and experimental science.
The German philosopher Ernst Bloch attempted to reveal what he considered the hidden metaphysical meaning of Marx's thought, which Leszek Kołakowski summarizes as, " a picture of the world tending towards a universal synthesis of all forces and factors, not only social phenomena but the cosmos as a whole.
As a composer, Hartmann attempted a difficult synthesis of many different idioms, including musical Expressionism and jazz stylization, into organic symphonic forms in the tradition of Bruckner and Mahler.
Further work in 1961 on the attempted synthesis of element 103 produced evidence for a Z = 102 alpha activity decaying by emission of an 8. 2 MeV particle with a half-life of 15 s, and assigned to < sup > 255 </ sup > No.
The division of the major psychoses into manic depressive illness ( now called bipolar disorder ) and dementia praecox ( now called schizophrenia ) was made by Emil Kraepelin, who attempted to create a synthesis of the various mental disorders identified by 19th century psychiatrists, by grouping diseases together based on classification of common symptoms.
In March – April 2007, the synthesis of unbinilium was attempted at the Flerov Laboratory of Nuclear Reactions in Dubna by bombarding a plutonium-244 target with iron-58 ions.
The synthesis of ununennium was attempted in 1985 by bombarding a target of einsteinium-254 with calcium-48 ions at the superHILAC accelerator at Berkeley, California:
, synthesis has been attempted for only ununennium, unbinilium, unbibium, unbiquadium, unbihexium, and unbiseptium.
After the discovery of the structure of DNA in 1953 by Francis Crick and James D. Watson, Gamow attempted to solve the problem of how the order of the four different kinds of bases ( adenine, cytosine, thymine and guanine ) in DNA chains could control the synthesis of proteins from amino acids.
The synthesis of ununtrium was first attempted in 1998 by the team at GSI using the above cold fusion reaction.
The political philosophy of New Labour was influenced by the party's development of Anthony Giddens ' Third Way, which attempted to provide a synthesis between capitalism and socialism.
For example, Henry van de Velde built a house for his own family at Uccle near Brussels in 1895 in which he demonstrated the ultimate synthesis of all the arts, for apart from integrating the house with all its furnishings, including the cutlery, he even attempted to consummate the whole Gesamtkunstwerk through the flowing forms of the dresses that he designed for his wife.
Recent work has attempted to refine the definition of a volcano to incorporate geologic features of widely different shapes, sizes, and compositions throughout the Solar System. One surprising and controversial conclusion from this synthesis of ideas is that the Tharsis region may be a single giant volcano.
A number of political ideologies and movements have attempted some degree of synthesis of the Marxist and anarchist traditions with the aim of a liberated workers ' society.
Bridgman made many improvements to his high pressure apparatus over the years, and unsuccessfully attempted the synthesis of diamond many times.
Philosophy flourished between the 11th and 13th century, especially at the Academy of Gelati Monastery, where Ioane Petritsi attempted a synthesis of Christian, aristotelician and neoplatonic thought.
In reality this distinction is somewhat academic, since totemism may be regarded as particularized manifestation of animism, and something of a synthesis of the two positions was attempted by Sigmund Freud.
The synthesis of ununennium was attempted in 1985 by bombarding a target of einsteinium-254 with calcium-48 ions at the superHILAC accelerator at Berkeley, California.
In March – April 2007, the synthesis of unbinilium was attempted at the Flerov Laboratory of Nuclear Reactions in Dubna by bombarding a plutonium-244 target with iron-58 ions.
0.888 seconds.