In this investigation, the synthesis process of the apyrazole derivative for diphenylphosphino-methane hydrazine complexes [ Ni(Cl)<Subscript>2</Subscript>{(Ph<Subscript>2</Subscript>P)<Subscript>2</ Subscript>CHC(R<Subscript>1</Subscript>R<Subscript>2</Subscript>)NHNH<Subs cript>2</Subscript>}] was reported, and the obtained crystals were analyzed by X-ray diffraction. As a result of the growth process, a set of complexes were...</subs></subscript></subscript><//></subscript></subscript></subscript>

Cameroon has experienced periods of economic growth and decline. During the growth period, public expenditures increased the size of the public sector. The decline period, which started in 1986, has been characterized by government expenditures that outstripped revenues. This study analyzes the...

The aridity of the Arabian Peninsula's deserts ranges between arid to hyperarid with hot dry climate, scarce precipitation and sparse vegetation. These harsh environmental conditions enhance some geomorphologic processes more than others, cause specific geotechnical problems, and increase...

The paper analyses the effects of trade and exchange rate policies on Cameroon's agriculture. Theoretical models and formulas are developed for empirical analysis.