The Latin American Symposium on Solid State Physics (SLAFES) has become one of the most traditional meetings in this geographical region. It brings together students and research leaders dedicated to a large variety of topics in solid state physics. The recent previous meetings were held in Mexico (January of 1998) and Colombia (November 1999). The program consists in plenary, invited, oral and...

An interface to ADM1 was developed to estimate the solid waste composition from its practical characteristics. The interface was based on COD, elemental, charge and covalent bond balances to conceal any error in collected characteristics from different sources. The interface was validated by reported characteristics of manure and food wastes and determined with relevant accuracy the wastes’ com...

lilium ledebourii (baker) boiss. (liliaceae) is a critically endangered lily species native tonorthern iran, where it is protected by law. in order to develop a cost effective method for largescalepropagation, the effects of three culture systems (solid, liquid and temporary immersion)and two types of cytokinins [6-benzyladenine (ba) and thidiazuron (tdz)] were studied onthe in vitro plant rege...

Mechanisms of energy dissipation during solid-solid and solid-liquid friction are discussed. A conservative van der Waals adhesion force, when combined with surface imperfectness, such as deformation, leads to adhesion hysteresis (AH). When an asperity slides upon a substrate, the substrate is subjected to a loading-unloading cycle, and energy is dissipated due to the AH. Another mechanism, whi...

During the growth of InAs nanowires from Pd catalyst particles on InAs(111)A substrates, two distinct classes of nanowires are observed with smooth or zigzagged sidewalls. It is shown that this is related to a bimodal distribution of the wire-tip diameter: above a critical diameter wires grow with smooth sidewalls, and below with zigzagged morphology. Transmission electron microscopy analysis s...