abstract background: biogas is obtained by anaerobic decomposition of organic wastes buried materials used to produce electricity, heat and biofuels. biogas is at the second place for power generation after hydropower and in 2000 about 6% of the world power generation was allocated to biogas. biogas is composed of 40–45 vol% co2, 55–65 vol% ch4, and about 1% non-methanevocs, and non-methane vol...

background: prediction of interaction sites within the membrane protein complexes using the sequence data is of a great importance, because it would find applications in modification of molecules transport through membrane, signaling pathways and drug targets of many diseases. nevertheless, it has gained little attention from the protein structural bioinformatics community. methods: in this stu...

adenoviruses are used extensively to deliver genes into mammalian cells, particularly where there is a requirement for high-level expression of transgene products in cultured cells, or for use as recombinant viral vaccines or in gene therapy. in spite of their usefulness, the construction of adenoviral vectors (adv) is a cumbersome and lengthy process that is not readily amenable to the generat...

the genetic diversity among 56 almond (prunus dulcis) genotypes was analysed using 35 microsatellite markers and 14 morphological traits. analysis of morphological traits revealed a wide range of variation among the studied genotypes. out of 35 simple sequence repeats (ssrs) markers, 25 were polymorphic, producing 215 alleles that varied from 2 to 16 with an average of 8.76 alleles per locus. r...

In this paper, we present a methodology for simulating pressure drop and collection efficiency of a filter medium during instantaneous particle loading using the ANSYS–Fluent CFD code, enhanced with inhouse subroutines. The simulations are comprised of a numerical solution of the Stokes equations for obtaining the air flow field, and Lagrangian particle tracking, for determining the particle co...

Introduction: Impact crater clusters or crater strewn fields from primary impacts are found in MOC [1, 2], CTX, and HiRISE images [3, 4]. We present the analysis of new data on small craters and crater clusters accumulated by the HiRISE team for the first 10,000 orbits of MRO. New Craters on Mars: Repetitive imaging of Mars by various spacecraft revealed 20 potential " new " impact sites [2]: i...

, 1403 (2006); 314 Science et al. Lon R. Cardon, Genes GENETICS: Enhanced: Delivering New Disease www.sciencemag.org (this information is current as of December 1, 2006 ): The following resources related to this article are available online at http://www.sciencemag.org/cgi/content/full/314/5804/1403 version of this article at: including high-resolution figures, can be found in the online Update...

Progress in the molecular oncology in head and neck cancer (HNSCC) depends on high quality appropriate tissue samples for research. The expanding availability of new molecular platforms makes ever increasing demands on any available biospecimens. HNSCC offers several key advantages over other tumour sites to the cancer researcher such that, through effective tissue collection, clinicians will b...

Abstract To accelerate the development of ion conducting materials, we present a general graph-theoretic analysis framework for migration in any crystalline structure. The nodes graph represent metastable sites migrating and edges discrete events between adjacent sites. Starting from collection possible sites, assigns weight to by calculating individual energy barriers those Connected pathways ...

In this paper we argue for the systematic assessment and reporting of the reliability of data collection methods that rely on the automated collection of data from third party social media sites, where the researcher does not have direct access to meaning or control over data quality. Building on a long tradition of reliability assessment in the sciences and specifically in social science, we p...