Level set methods are a general and powerful technique to represent an object's boundary by the means of an implicit function that has a specific value on the boundary. This property permits the easy modeling of interfaces between different fluids that interact under prescribed/evolving conditions or that act under specified constraints. The Cactus Code is a general framework for developing com...

Drosophila mojavensis is a cactophilic fly endemic to the northwestern deserts of North America. This species includes four genetically isolated cactus host races each individually specializing on the necrotic tissues of a different cactus species. The necrosis of each cactus species provides the resident D. mojavensis populations with a distinct chemical environment. A previous investigation o...

Understanding the genetic basis of adaptation to novel environments remains one of the major challenges confronting evolutionary biologists. While newly developed genomic approaches hold considerable promise for addressing this overall question, the relevant tools have not often been available in the most ecologically interesting organisms. Our study organism, Drosophila mojavensis, is a cactop...

I am a herpetologist specializing on exotic animals and plants psychology behavior. was travelling around Japan through my travels lucky to spot an interesting history use of specific type cactus. The city called Cactus City in were the community celebrating promoting health benefits eat cactus and, they managed pass bill introduce as food schools. This unusual devotion towards xerophytes, comi...

The yeast species found in necrotic stems of three columnar cacti (Pilosocereus machrisii, Pilosocereus vilaboensis, and Praecereus euchlorus) at eight localities in Brazil were described and a similarity analysis using Sorensen distances was used to compare the composition of yeast species at these localities. Of 56 necrotic cactus stems sampled, 32 produced yeast colonies. Ten species of yeas...

In this paper we consider a fundamental problem in the area of viral marketing, called TARGET SET SELECTION problem. We study the problem when the underlying graph is a block-cactus graph, a chordal graph or a Hamming graph. We show that if G is a block-cactus graph, then the TARGET SET SELECTION problem can be solved in linear time, which generalizes Chen’s result [2] for trees, and the time c...

Characterization of three cactus proteins (native and denatured) from Machaerocereus gummosus (Pitahaya agria), Lophocereu schottii (Garambullo), and Cholla opuntia (Cholla), was based on electrophoretic, fluorescence, CD (circular dichroism), DSC (differential scanning calorimetry), and FT-IR (Fourier transform infrared) measurements. The obtained results of intrinsic fluorescence, DSC, and CD...

The 2-level cactus introduced by Dinitz and Nutov in [5] is a data structure that represents the minimum and minimum+1 edgecuts of an undirected connected multi-graph G in a compact way. In this paper, we study planarity of the 2-level cactus, which can be used, e.g., in graph drawing. We give a new sufficient planarity criterion in terms of projection paths over a spanning subtree of a graph. ...

Abstract Inspired by the interesting functional traits of a climbing cactus, Selenicereus setaceus, found in forest formations Southeastern Brazil, we formulated hypothesis that can directly learn from plants to develop multi-functional artificial systems means multi-disciplinary approach. In this context, our approach is take advantage 3D-printing techniques and shape-memory hydrogels synergis...