The asymmetric unit of the title compound, C(44)H(38)N(8) (2+)·4I(-)·4H(2)O, comprises two halves of non-equivalent cations of 5,10,15,20-tetra-kis-(1-methyl-pyridinium)porphyrin (with the full mol-ecule of each completed by the application of inversion symmetry), four charge balancing iodide anions and four water mol-ecules of crystallization (two water mol-ecules are fully occupied and four m...

The paper provides a floristic account of the S. R. T. Campus (HNB Garhwal University, Tehri Garhwal, Uttarakhand) which enumerates 193 taxa, distributed under 158 genera and 70 families Angiosperms, Gymnosperms Pteridophytes. Life form analysis revealed presence 65.28% herbs, 17.62 % shrubs 12.44 trees, and. climber 4.66%. Asteraceae, Poaceae, Fabaceae, Lamiaceae, Rosaceae as dominant (in term...

The Crematogaster subgenus Colobocrema was established to include the single species C. cylindriceps Wheeler, based on a single queen from the Philippines. We discovered a species close to or the same as C. cylindriceps in Borneo and provide descriptions of the queen, worker and male. This species lives in live climber plants of secondary and primary rainforests. The phragmotic morphology chara...

Strychnos usambarensis Gilg (Loganiaceae) is one of thé three most widely distributed African species of Strychnos L. In East and South Africa thé plant grows as a small tree 3-15 m in height. In several other localities in East Africa, as well as in Zaïre, Congo, and West Africa, it is found as a climber up to 70 m long (1). The only other morphological différence between thé two forms is thé ...

Many experiments have proved that crossover is an essential search operator in evolutionary algorithms, at least for certain functions. However, the rigorous analysis of such algorithms on crossover-friendly functions is still in its infancy. Here a recombinative hill-climber is analyzed on the crossover-friendly function H-IFF introduced by [10]. The dynamics of this algorithm are investigated...

Tinospora crispa Beumee, a herbaceous climber, has been widely used in traditional medicine for treating various ailments such as contusion, septicaemia, fever, fracture, scabies and other tropical ulcers. A wide range of secondary metabolites such as alkaloids, diterpenes, flavones, phenolics, and triterpenes have been isolated, some of which have also shown corresponding biological activities...