scholarly journals Solvolysis of Organic Phosphates. III 3-Pyridyl and 8-Quinolyl Phosphates in Spontaneous Reaction

1971 ◽  
Vol 44 (7) ◽  
pp. 1939-1944 ◽  
Author(s):  
Yukito Murakami ◽  
Junzo Sunamoto
Keyword(s):  
Organic Phosphates ◽  
Spontaneous Reaction

scholarly journals Organic Phosphates. IV. Synthesis of Several Bis (2-hydroxyalkyl) and Methyl 2-Hydroxyalkyl Phosphates.

1957 ◽  
Vol 5 (3) ◽  
pp. 215-218 ◽  
Author(s):  
Tyunosin Ukita ◽  
Kinzo Nagasawa ◽  
Masachika Irie
Keyword(s):  
Organic Phosphates

Phosphorus compounds measured in a rapid and simple leaf test for the assessment of the phosphorus status of subterranean clover

1984 ◽  
Vol 24 (125) ◽  
pp. 213 ◽  
Author(s):  
GCJ Irving ◽  
D Bouma
Keyword(s):  
Leaf Tissue ◽  
Rapid Test ◽  
Subterranean Clover ◽  
Exchange Chromatography ◽  
Phosphorus Compounds ◽  
Fresh Leaf ◽  
Organic Phosphates ◽  
Phosphorus Status ◽  
Colour Development ◽  
Hydrolysis Of

Experiments were done to determine what proportion of the phosphate extracted from fresh leaf tissue by five drops of 10 N H2SO4 represents inorganic tissue phosphate, and to what extent hydrolysis of organic phosphates during and after the extraction, and during the development of the blue phosphomolybdate complex, could contribute to the values obtained. The extraction is the basis of a simple and rapid test for the assessment of the phosphorus status of subterranean clover (Bouma and Dowling 1982). Extraction of leaf tissue of subterranean clover and sunflower with 0.2 M HClO4 at O�C, which was shown to extract inorganic leaf phosphorus without causing significant hydrolysis of organic phosphates, gave values not significantly different from those in H2SO4 extracts. The rate of hydrolysis of endogenous organic phosphates in tissue, extracted and left at room temperature for periods of up to 40 min. after adding H2SO4, did not differ significantly from zero. Errors due to hydrolysis during the 30 min. previously recommended for colour development are reduced to negligible proportions by reducing the time for colour development to 10 min. and by adding citric acid at this point. Anion-exchange chromatography of 10 N H2SO4 and 0.2 M HClO4 extracts confirmed the similarity of their composition and provided estimates of the various phosphate compounds present. The extraction of fresh leaf tissue with 10 N H2SO4 provides a satisfactory estimate of the endogenous inorganic phosphorus content.

Structure of the molecular orbitals in organic phosphates and polyphosphates

1980 ◽  
Vol 21 (1) ◽  
pp. 14-22 ◽  
Author(s):  
L. N. Nazalov ◽  
V. D. Yumatov ◽  
G. N. Dolenko
Keyword(s):  
Molecular Orbitals ◽  
Organic Phosphates

Carbonic anhydrase inhibitors. Interaction of isozymes I, II, IV, V, and IX with organic phosphates and phosphonates

2005 ◽  
Vol 15 (6) ◽  
pp. 1683-1686 ◽  
Author(s):  
Jean-Yves Winum ◽  
Alessio Innocenti ◽  
Valerie Gagnard ◽  
Jean-Louis Montero ◽  
Andrea Scozzafava ◽  
...  
Keyword(s):  
Carbonic Anhydrase ◽  
Carbonic Anhydrase Inhibitors ◽  
Organic Phosphates

Organic Phosphates in the in Vitro Formation of Calculus

1968 ◽  
Vol 47 (4) ◽  
pp. 667-667
Author(s):  
F.L. Miklos ◽  
F.J. Draus
Keyword(s):  
Organic Phosphates

scholarly journals Tuareg-Rebellion, Islamismus und Staatskrise in Mali

2013 ◽  
Vol 43 (170) ◽  
Author(s):  
Thomas Greven
Keyword(s):  
Social Relationship ◽  
Central Government ◽  
The State ◽  
Islamic Fundamentalism ◽  
Coup D'etat ◽  
The North ◽  
Majority Population ◽  
The Us ◽  
The Government ◽  
Spontaneous Reaction

The root causes of the ongoing crisis in Northern Mali lie in the region’s underdevelopment, exacerbated by longstanding, if recently decreasing, neglect of the central government; the complex social relationship between the largest minority, the Tuareg, and the majority population, which has worsened since a largely unresolved crisis in the 1990s; and the growing interest of a small but growing number of actors involved in the drug trade and other criminal activities in the absence of the state. Among the latter have been a growing number of Jihadists, at first mostly from Algeria, who have been taking Western citizens hostage and therefore caused the US and France to pressure the Malian government to re-establish a presence of the state in the North. The clash was all but inevitable when several thousand heavily armed Tuareg fighters came to Mali after the defeat of Gaddafi in Libya. A new element of the crisis is the growing number of jihadists among the Tuareg rebels and other Malians, but neither Tuareg irredentism nor Islamic fundamentalism has more than minority support in Mali, Northern Mali, or among the Tuareg. The coup d’état against the president, while most likely a spontaneous reaction to the inability of the government to fight the rebellion, uncovered a structural crisis of Malian democracy and society. The disintegration of Mali’s long-praised formal democratic institutions after the coup showed fundamental problems. However, political supporters of the coup who assumed that the population’s tacit support of the coup could be turned into a movement for fundamental social change, had to find that it was largely an opportunistic and diffuse expression of general discontent.

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