Olivine is the most important phase in the Earth’s upper mantle, where the bulk rock composition varies on average from lherzolitic to harzburgitic, where the olivine fractions are normally >60 %. Olivine is of major importance for Earth’s mantle dynamics and the presence of grain boundaries in olivine and their type might partially be responsible for attenuation phenomena as well as thermal an...

The multicatalytic proteinase complex (proteasome) is a highmolecular-mass (approximately 700 kDa) intracellular proteinase which has been isolated under a variety of different names from a wide variety of eukaryotic cells and tissues (reviewed, Rivett, 1989a; Orlowski, 1990). The proteinase complex is composed of at least 24 subunits which include many different polypeptides arranged in a cyli...

A multi-robot system, like a robot formation, contains information that is distributed throughout the system. As the collective increases in numbers or explores distant or difficult areas, obtaining collective situational awareness becomes critical. We propose a method for extracting system and environmental information distributed over a collective of robots. Introduction and Background Endsle...

The term “immersed boundary method” was first used in reference to a method developed by Peskin (1972) to simulate cardiac mechanics and associated blood flow. The distinguishing feature of this method was that the entire simulation was carried out on a Cartesian grid, which did not conform to the geometry of the heart, and a novel procedure was formulated for imposing the effect of the immerse...

Tomicus species (Coleoptera, Scolytidae) are important pests of pine forest in Eurasia (Schroeder, 1987; Bouhot et al., 1988; Hui, 1991), Europe (Langström, 1983; Schroeder, 1987; Bouhot et al., 1988; Hui, 1991; Guerrero et al., 1997; Dajoz, 2000) and Mediterranean regions (Triggiani & Santini, 1987; Monleón et al., 1996; Nanni & Tiberi, 1997). Three widespread species occur in the Iberian Peni...

we study the convergence of the modified noor iterative scheme for the class of asymptotically pseudocontractive mappings in the intermediate sense which is not necessarily lipschitzian. our results improves, extends and unifies the results of schu [23] and qin {it et al.} [25].

Aside from the typical retroviral gag, pol, and env genes, HIV encodes a series of accessory genes, vif, vpr, vpx, vpu, and nef. The vpu gene is found exclusively in HIV-1 (Strebel et al., 1988; Cohen et al, 1988; Matsuda, 1988). In tissue culture systems, defects in accessory genes are frequently not correlated with a detectable impairment of virus replication and, as a result, these genes are...

Theme 1 Global software development: Developing information systems is a labor intensive and complex process that involves intense coordination of interdependent tasks. Current software engineering theory proposes several processes and methodologies for managing IS development (example: Boehm, 1988; Boehm, 2002; Humphrey, 1988; Humphrey, 1996; Paulk, et al., 1995). These processes and methodolo...

Spontaneous speech differs in a multitude of ways from read, formal, or laboratory speech (Maclay & Osgood 1959, Goldman-Eisler 1968, Levelt 1983, Biber 1988, Howell & Kadi-Hanifi 1991, Eskenazi 1993, Shriberg 1994, Swerts et al. 1996, Bruce 1995, Hirschberg 1995, Laan 1997). Although the labels “spontaneous” and “read” each reflect an underlying multidimensional space of different genres or “s...

Ongoing fluctuations of neuronal activity have long been considered intrinsic noise that introduces unavoidable and unwanted variability into neuronal processing, which the brain eliminates by averaging across population activity (Georgopoulos et al., 1986; Lee et al., 1988; Shadlen and Newsome, 1994; Maynard et al., 1999). It is now understood, that the seemingly random fluctuations of cortica...