astrocytes. virus type 1 transcripts in human fetal Temporal patterns of human immunodeficiency

The existence of doubly near resolvable (v, 2, 1)-BIBDs was established by Mullin and Wallis in 1975. For doubly near resolvable (v, 3, 2)-BIBDs, the existence problem was investigated by Lamken in 1994, and completed by Abel, Lamken and Wang in 2007. In this paper, we look at doubly near resolvable (v, 4, 3)-BIBDs; we establish that these exist whenever v ≡ 1 (mod 4) except for v = 9 and possi...

The long term goal of this research is to develop a program able to produce an automatic segmentation and categorization of textual sequences into discourse types. In this preliminary contribution, we present the construction of an algorithm which takes a segmented text as input and attempts to produce a categorization of sequences, such as narrative, argumentative, descriptive and so on. Also,...

It follows from work of Andrews and Bressoud that for t the number of partitions of n with all successive ranks at least t is equal to the number of partitions of n with no part of size t However no simple combinatorial explanation of this fact has appeared in the literature We give a simple bijection for this identity which generalizes a result of Cheema and Gordon for rowed plane partitions T...

The two-type Richardson model describes the growth of two competing infections on Z and the main question is whether both infection types can simultaneously grow to occupy infinite parts of Z. For bounded initial configurations, this has been thoroughly studied. In this paper, an unbounded initial configuration consisting of points x = (x1, . . . , xd) in the hyperplane H = {x ∈ Z d : x1 = 0} i...