[1] Warming of the martian lower thermosphere (100–130 km) at north polar latitudes near the perihelion/winter solstice (Ls = 270) was recently observed. No analogous warming has been observed within the south polar thermosphere during its aphelion/winter season (Ls 90). Detailed global model simulations are required to investigate the physical processes driving these seasonal variations. New s...

Introduction: Investigation of the internal structure of martian polar caps, being a challenging task during past decades [1], is now going to be solved with the ground penetrating radar (GPR) instruments, both orbital and landed. In the present report the propagation of ultra wide band (UWB) chirp pulse in martian polar ice caps is investigated. The specific nature of the problem is that rathe...

in this paper, the notion of maximal m-open set is introduced and itsproperties are investigated. some results about existence of maximal m-open setsare given. moreover, the relations between maximal m-open sets in an m-spaceand maximal open sets in the corresponding generated topology are considered.our results are supported by examples and counterexamples.

betweenness, geometry, lines, polar coordinates, trilinear coordinates We consider straight line drawings. From a graph theoretic point of view these are plane graphs with a set of preferred paths. This graph is expressed in geometric terms through the consideration of the betweenness of the points of intersection along each of the lines. If we fix a reference system for polar coordinates, we c...

Abstract. Let L and M be two finite lattices. The ideal J(L,M) is a monomial ideal in a specific polynomial ring and whose minimal monomial generators correspond to lattice homomorphisms ϕ: L→M. This ideal is called the ideal of lattice homomorphism. In this paper, we study J(L,M) in the case that L is the product of two lattices L_1 and L_2 and M is the chain [2]. We first characterize the set...

HED PARENT BODY. A. Yamaguchi, C. Okamoto, M. Ebihara, National Institute of Polar Research, Department of Polar Science, School of Multidisciplinary Science, Graduate University for Advanced Studies, Tokyo 173-8515, Japan ([email protected]), Graduate School of Environmental Studies, Nagoya University, Nagoya 464-8601, Department of Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo 1...

The production of triploid shellfish has proven beneficial to the aquaculture industry since triploid organisms have reduced gonadal development, resulting in improved product quality and growth characteristics (1). Triploidization has been achieved for several molluscan species (2, 3, 4, 5, 6). In contrast, little is known about the effects of ploidy manipulation in decapod crustaceans. Triplo...