Castelnuovo–Mumford regularity is one of the most important invariants in commutative algebra. It has been investigated by various authors from different point of view. One of the interesting properties of regularity is its asymptotic behavior. In this talk first we will see some well-known facts of regularity and then I will present some known results of asymptotic behavior of quadratic square...

Flowers of Anchusa strigosa Lab. (Boraginaceae) used traditionally in Iraq for curing many kinds of diseases including diabetes. The present study was carried out to evaluate the antidiabetic activity of aqueous extract of flowers of A. strigosa in streptozotocin (STZ)-diabetic rats. The aqueous extract of A. strigosa flowers was administered orally (250 mg/kg and 500 mg/kg) to diabetic rats fo...

To resolve phylogenetic relationships among all genera and subgenera in Osmundaceae, we analyzed over 8,500 characters of DNA sequence data from seven plastid loci (atpA, rbcL, rbcL–accD, rbcL–atpB, rps4–trnS, trnG–trnR, and trnL–trnF). Our results confirm those from earlier anatomical and single-gene (rbcL) studies that suggested Osmunda s.l. is paraphyletic. Osmunda cinnamomea is sister to th...

Mabberley, D.J. (Rijksherbarium, University of Leiden, Netherlands and Royal Botanic Gardens, Sydney NSW 2000, Australia) 1997. A classification for edible Citrus (Rutaceae). Telopea 7(2): 167–172. A workable Linnaean classification, taking into account recent chemotaxonomic advances, is proposed for edible citrus fruits currently referred to the genus Citrus. They are accommodated in three spe...

Molecular sequence data show that the three species oDelphinium subg. Staphisagria (J. Hill) Peterm. form the sister clade to Aconitum L., Aconitella SpachConsolida (DC.) S.F. Gray, and all remaining species of Delphinium L. To account for this finding we resurrect Staphisagria J. Hill (1756). Names in Staphisagria are available for two of the species. We here make the required new combination ...

Water is the principal limiting resource for Californian Mediterranean-climate plants. The relationship between rainfall variation and the abundance and distribution of plant species was investigated at the Jasper Ridge Biological Preserve near Stanford University. Five years of rainfall data (1986-1990) were combined with a yearly census of plant species on a 100m transect to relate inter-annu...