Amfiteatru Economic addresses those who wish to stay informed on Romanian and European economic issues, economic theory and practice, and the economics of education. Our journal is an academic outlet for scholars and researchers form the Academy of Economic Studies in Bucharest, universities in Europe and other continents, and for practitioners in the field of economics and management.
Amino Acids publishes contributions from all fields of amino acid and protein research: analysis, separation, synthesis, biosynthesis, cross linking amino acids, racemization/enantiomers, modification of amino acids as phosphorylation, methylation, acetylation, glycosylation and nonenzymatic glycosylation, new roles for amino acids in physiology and pathophysiology, biology, amino acid analogues and derivatives, polyamines, radiated amino acids, peptides, stable isotopes and isotopes of amino acids. Applications in medicine, food chemistry, nutrition, gastroenterology, nephrology, neurochemistry, pharmacology, excitatory amino acids are just some of the topics covered. Fields of interest include: Biochemistry, food chemistry, nutrition, neurology, psychiatry, pharmacology, nephrology, gastroenterology, microbiology
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© Nicolas Brodu. 2003 The astrolabe is an ancient astronomical computer for solving problemsrelating to time and the position of the sun and stars in the sky.Historians credit the invention of the astrolabe to classical Greece.Brass astrolabes were highly developed in the Islamic world of the 8thcentury and later. chiefly as an aid to navigation and as a way offinding the direction of Mecca. In the Middle Ages it found its wayback to Europe and became the chief navigational instrument until theinvention of the sextant in the 18th century.