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Digitale Medien

A comprehensive approach to drought and desertification in Northern Nigeria (1993)

Oladipo, E. O.

Springer

Natural hazards 8 (1993), S. 235-261

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Details

ISSN: 1573-0840

Schlagwort(e): Drought ; desertification ; northern Nigeria ; drought and desertification planning policy

Quelle: Springer Online Journal Archives 1860-2000

Thema: Energietechnik , Geographie , Geologie und Paläontologie

Notizen: Abstract Drought has been a recurring feature of the arid and semi-arid areas of Nigeria. This paper reviews the extent, severity, and consequences of drought and desertification in Nigeria with particular emphasis on the northern part of the country. The haphazard manner in which these environmental hazards have been tackled is examined and a systematic approach for the formulation of a national policy is proposed. It is recommended that a detailed formulation and implementation of the proposed policy plan is imperative to mitigate the often devastating impacts of drought and desertification in the very prone areas of Nigeria. Until such is done, some areas of Nigeria will always be vulnerable to the whims of an inevitable climatic hazard of drought and associated land degradation in the form of desertification.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00690910

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Digitale Medien

Positron band structures for beryllium (1981)

Oriade, Joseph Oladipo

New York, NY : Wiley-Blackwell

International Journal of Quantum Chemistry 20 (1981), S. 891-896

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Details

ISSN: 0020-7608

Schlagwort(e): Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Notizen: We report on the band structure and wave functions of positrons, annihilating with electrons, from the thermalized state k+ = 0. We find that the bottom of the band to which the positron thermalizes in this metal is definitely nonambiguous. It is also found that even though the first few Bloch terms in the wave function can give the gross shape of the positron annihilation curve for this metal, the higher momentum components of high orders are definitely important if one is to assay the fine details of the curve.

Zusätzliches Material: 4 Ill.