The purely chemical literature on the alkaloids is especially voluminous; and from the assiduity with which the constitutions of these substances have been and are still being attacked, we may conclude that their synthesis is but a question of time.
Now, in the synthesis of the third act two principles may be distinguished: - (1) the non-ego determines the ego; (2) the ego determines the non-ego.
Kolbe; this taken in conjunction with Melsens's observation provided the first synthesis of acetic acid.
Mme Blavatsky's principal books were Isis Unveiled (New York, 1877), The Secret Doctrine, the Synthesis of Science, Religion and Philosophy (1888), The Key to Theosophy (1891).
In spite of this, however, his heroic attempt at a synthesis of all scientific knowledge could not but fall short of its aim.
It almost follows from the nature of the case that the great task of Boerhaave's life, a synthesis of ancient and modern medicine, and the work in which this is chiefly contained, his.
Next he groups these sections into fourteen larger masses of apocalyptic matter, and by a process of synthesis seeks to arrive at the plan on which the author constructed his book.
The earlier papers deal chiefly with the properties and modes of synthesis of cloud chain hydrocarbons and their derivatives.
Berthelot first accomplished the synthesis of benzene in 1870 by leading acetylene, HC: CH, through tubes heated to dull redness; at higher temperatures the action becomes reversible, the benzene yielding diphenyl, diphenylbenzene, and acetylene.
An important oxidation synthesis of aromatic acids is from hydrocarbons with aliphatic side chains; thus toluene, or methylbenzene, yields benzoic acid, the xylenes, or dimethyl-benzene, yield methyl-benzoic acids and phthalic acids.
If we rest on the synthesis here described, the energy of the matter, even the thermal part, appears largely as potential energy of strain in the aether which interacts with the kinetic energy associated with disturbances involving finite velocity of matter.
We may here mention the synthesis of oxyuvitic ester (5-methyl-4-oxy-I-3-benzene dicarboxylic ester) by the condensation of two molecules of sodium acetoacetic ester with one of chloroform (Ann., 1883, 222, p. 249).
Gregorovius's Geschichte der Stadt Rom (3rd ed., Stuttgart, 1881), a work of immense research and admirable synthesis, giving a very unfavourable view of the Borgia; A.
- These are the materials which are utilized by the vegetable plankton in the synthesis of living material: they are water, carbonic acid, nitrates and nitrites of calcium, magnesium and other earthy and alkaline metals, phosphates, silica, traces of salts containing iron, sulphur, potassium and a few other elements.
Fischer's a-acrose therefore led to the synthesis of the dextro and laevo forms Gf mannose, glucose and fructose; and these substances have been connected synthetically with many other sugars by means of his cyanhydrin process, leading to higher sugars, and Wohl and.
The main principles of the Comtian system are derived from the Positive Polity and from two other works, - the Positivist Catechism: a Summary Exposition of the Universal Religion in Twelve Dialo ues between a Woman and a The g, g Elvis f Priest of Humanity; and, second, The Subjective Synthesis (1856), which is the first and only volume of a work upon mathematics announced at the end of the Positive Philosophy.
This work led naturally to the synthesis of many terpenes and members of the camphor group; also to the investigation of various alkaloids and natural colouring matters.
His power lies chiefly in the clear grasp of fact, in selection and synthesis, in the vivid narration of incident.
The general trend of these researches lies in the study of the decomposition or " breaking down " products of the albumin molecules; once these are accurately determined, the synthesis of an albumin is but a matter of time.
Martinengo Cesarescos Liberation of Italy (London, 1895) is to be strongly recommended, and is indeed, for accuracy, fairness and synthesis, as well as for charm of style, one of the very best books on the subject in any language; Bolton Kings History of Italian Unity (2 vols., London, 1899) is bulkier and less satisfactory, but contains a useful bibliography.
Another hexa-substituted benzene compound capable of direct synthesis is mellitic acid or benzene carboxylic acid, C6(000H)6.
He produced in the end a synthesis of Plato and Aristotle with an admixture of Pythagorean or Oriental mysticism, and is closely allied to the Alexandrian school of thought.
The above formula for piperic acid was confirmed by its synthesis by A.
Kennett's Schweich Lecture (1909), The Composition of the Book of Isaiah in thelLight of Archaeology and History, an interesting attempt at a synthesis of results, is a brightly written b'ut scholarly sketch of the growth of the book of Isaiah, which went on till thegreat success of the Jews under Judas Maccabaeus.
Long robes bearing Greek names (synthesis, syrma, &c.) were worn at dinner-parties.
Before proceeding to the actual synthesis of the sugars, it is advisable to discuss their decompositions and transformations.
The general principles of stereochemistry being discussed in Stereoisomerism (q.v.), we proceed to the synthesis of glucose and fructose and then to the derivation of their configurations.
There are certain reactions, however, in which oxidation can be successfully applied to the synthesis of acids.
Among the poems written or at least sketched during this period were L'Oaristys, L'Aveugle, La Jeune Malade, Bacchus,Euphrosine and Ld Jeune Tarentine, the last a synthesis of his purest manner, mosaic though it is of reminiscences of at least a dozen classical poets.
" In this sense the doctrine of the Trinity was the synthesis, and summary, of all that was highest in the Hebrew and Hellenic conceptions of God, fused into union by the electric touch of the Incarnation."
We progress by making explicit the oppositions contained in the fundamental synthesis, by uniting these opposites, analysing the new synthesis, and so on, until we reach an ultimate pair.