Given a DNF formula φ with n variables, DNF counting is the problem finding the number of satisfying assignments for φ. Note that in general satisfiability for DNF is easy as we need only satisfy a single clause, but the counting problem is hard. Indeed, if we could do this, then given any 3-CNF formula f with n variables, we could take its negation, count how many satisfying assignments its ne...

the objective of this study was evaluation of salt tolerance of elite forage sorghum lines in laboratory and field conditions. salinity treatments were 5, 10, 15, 20, 25, 30 decisimens per meter in laboratory and distilled water as control. lines were kfs1, kfs2, kfs3, kfs4, mfs1, mfs2 and lfs56. the lines also cultivated in saline and non saline field conditions during 2004-2005. electrical co...

Abstract Today, the increase in evolution of certain types extreme events Morocco has potential to produce impacts and damages on socio-economic sectors. An heat cold extremes manifested by strong waves are clearly increased terms their intensity, frequency duration. This required an in-depth study understand link between two. So, this under following theme: “Impact climate change Morocco” is d...

Not long after taxonomists recognized that among the saprolegniaceous fungi there were homologous groups possessing similar devices for insuring reproduction, they began industriously arranging these groups into hierarchical clusters to suggest relationships. Although the resulting phylogenetic schemes were fashioned around the relatively simple structure of the individual species, mycologists ...

Sociologists understand the term ‘organization’ in very broad terms to mean any structure by which social life and behaviour are managed. The term is more narrowly understood to mean formal organizations with a bureaucratic structure. Some formal organizations process ‘clients’, like schools and police stations, where the principal purpose is the management of people and their needs. Others are...

Slide 1 Marx was very critical of Malthus. He said that an abstract law of population did not exist for men (Marx, 1974). All historical modes of production have their own special laws of population which are valid only within their limits. Marx discussed the law of population, applicable to capitalist mode of production in chapter XXV of Capital, entitled, “The General Law of Capitalist Accumu...

Article history: Received 7 February 2014 Received in revised form 27 July 2014 Accepted 28 July 2014 Available online 5 August 2014 This paper discusses the issue of informal employment and its effect on the income distribution in China using datasets from the China Urban Labour Surveys of 2005 and 2010. Based on a new definition of informal employment, we estimated the proportion of informal ...

Cholesterol is a main lipid component of sperm cell that is essential for sperm membrane fluidity, capacitation, and acrosomal reaction. Recent data obtained in bovine sperm showed that sperm capacitation is associated to the formation of oxysterols, oxidized products of cholesterol. The aim of this study was to profile oxysterol content in human semen, and to investigate their potential role i...

hepatomas have demonstrated that a spectrum of such tumors exists with varying degrees of change from the parent hepatocyte (26—30). Such hepatocarcinomas as the Morris 5123 (18) and Reuber H-35 (34), for instance, resemble the parent tissue to a marked degree both morphologically and biochemically (27), and thus fall in the category termed “minimaldeviation hepatomas― by Potter (31). On ...

The majority of studies into visually induced motion sickness (VIMS) either use complex motion scenarios or are limited to single-axis motion. This study compared VIMS during singleand dual-axis motion. Twelve participants were exposed to (i) oscillating roll motion, (ii) linear motion in the anterior-posterior axis, and (iii) spiral motion, i.e. the summed direction of both of these flow vecto...