in this study, srap molecular maker approach was performed to investigate genetic diversity in the salvia genus. a total of 205 dna bands were produced from pcr amplification of 11 salvia species and populations using 25 selective primer combinations, of which 204 polymorphic genetic loci accounted. the total number of amplified fragments ranged from 3 to 15. the genetic similarities of 11 coll...

abstract rosa damascena has attracted considerable attention in horticulture, biochemistry and in pharmacology because of the fragrance of the flowers and the high content of its bio-logically active substances. there is limited information available on factors controlling flower yield and its components. the present study reports an investigation on flower yield and the various factors affect...

The active site for water oxidation in photosystem II (PSII) consists of a Mn4Ca cluster close to a redox-active tyrosine residue (TyrZ). The enzyme cycles through five sequential oxidation states (S0 to S4) in the water oxidation process. Earlier electron paramagnetic resonance (EPR) work showed that metalloradical states, probably arising from the Mn4 cluster interacting with TyrZ., can be tr...

An experimental result for the polarizability of ${}^{40}$Ca is presented. Together with a previous study ${}^{48}$Ca, it serves as test theoretical approaches based on coupled-cluster calculations interactions derived from chiral effective field theory and energy density functional theory, thereby providing constraints equation state neutron-rich matter.

Globular Clusters are among the oldest objects in Galaxy, thus their researchers key to understanding processes of evolution and formation that galaxy has experienced early stages. Spectroscopic studies allow us carry out detailed analyzes on chemical composition Clusters. The aim our research is perform a analysis abundances sample stars Bulge Cluster NGC 6553, order determine patterns appreci...

The secreted carbonic anhydrases, CA VI, are high molecular mass, oligomeric enzymes originally found in the sheep parotid gland and saliva. The enzymes have been purified from the saliva or parotid glands of several different species. All the CA VI enzymes studied have an apparent subunit Mr of about 45,000 as previously reported for the sheep enzyme. By Western analysis, CA VI from human, cow...

the writers of this research have studied seven variables including: precipitation, relative humidity, sunny hours, temperature average, temperature minimum, temperature maximum and sea level pressure, at sanandaj air station during 1964-1994. sanandaj air station has nearly 10966 days of complete data for these variables. a principal component analysis (pca) has been applied on this data; then...