The paper deals with nets formed by two families of fibers (cords) which can grow shorter but not longer, in a deformation. The nets are treated as two dimensional continua in the three dimensional space. The inextensibility condition places unilateral constraint on the partial derivatives yÙ 1 and yÙ 2 of the deformation y Ú Ω r R 3 of the form |yÙ 1 x | 2 1Ù |yÙ 2 x | 2 1Ù x ̈ x1Ù x2 X Ω ⊂ R ...

question to the fi tting of statistical distribution models to P-O datasets (i.e. model calibration; Chefaoui and Lobo 2008, Vanderwal et al. 2009, Barbet-Massin et al. 2012). A fundamental assumption in SDM calibration is the unbiased sampling of available conditions in the environmental space (Araú jo and Guisan 2006, Pearce and Boyce 2006). However, sampling bias is a widespread issue since ...

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Organic matter isolated from the Florida Everglades caused a dramatic increase in mercury release (up to 35 μM total dissolved mercury) from cinnabar (HgS), a solid with limited solubility. Hydrophobic (a mixture of both humic and fulvic) acids dissolved more mercury than hydrophilic acids and other nonacid fractions of dissolved organic matter (DOM). Cinnabar dissolution by isolated organic ma...

Since Å xi for binary variables, aiiÅ 0 could be assumed without any loss of generality. 2 x i It is well known that finding the minimum of f is an NP-hard problem (Garey and Johnson 1979); it contains, as special cases, the vertex cover, maximum cut, signed-graph balancing and MAX-2SAT problems. Moreover, for the general minimization problem there exists a constant c ú 0 such that the existenc...

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Microblog is a popular Web 2.0 service which reserves rich information about Web users. In a microblog service, it is a simple and effective way to annotate tags for users to represent their interests and attributes. The attributes and interests of a microblog user usually hide behind the text and network information of the user. In this paper, we propose a probabilistic model, Network-Regulari...

of natural populations (Manel et al. 2003, Segelbacher et al. 2010). Landscape genetics is a synthetic discipline that allows explicitly testing the infl uence of diff erent landscape features on gene fl ow in a spatially explicit framework (Manel et al. 2003, Segelbacher et al. 2010). Th is approach primarily aims at quantifying the resistance of landscape features to movement in order to dete...