Molecular karyotypes for six strains of four Chlorella species were obtained by using an alternating-field gel electrophoresis system which employs contour-clamped homogenous electric fields (CHEF). The number and migration pattern of the chromosomal DNA molecules varied greatly from strain to strain: for example, nine separated chromosomes of C. ellipsoidea C87 ranged from 2.5 to 6.5 megabase ...

The positive transcription elongation factor b (P-TEFb), a complex of Cdk9 and cyclin T1/T2, stimulates transcription by phosphorylating RNA polymerase II. The 7SK small nuclear RNA, in cooperation with HEXIM1 protein, functions as a general polymerase II transcription regulator by sequestering P-TEFb into a large kinase-inactive 7SK/HEXIM1/P-TEFb complex. Here, determination and characterizati...

Productivity Premia for German Manufacturing Firms Exporting to the Euro-Area and Beyond: First Evidence from Robust Fixed Effects Estimations This paper makes three contributions. (1) It summarizes in tabular form a recent literature made of 36 micro-econometric studies for 16 different countries on the relationship between export destination and firm performance. (2) It reports estimates of t...

We examined the effect of several nitric oxide (NO) donors, authentic NO gas, and L-arginine in isolated cat and rat papillary muscles. We did not observe significant inotropic effects in response to any NO donor (ie, SPM-5185, C87-3754, and S-nitroso-N-acetylpenicillamine [SNAP]) from 1 nmol/L to 100 mumol/L. Similarly, authentic NO, at concentrations far in excess of those that maximally dila...

the role of distance as border effects between trade partners has been created challengeable discussions in gravity model literature for international economists and lead to different theoretical aspects for measuring and modeling of it in recent years. moreover, the necessity of non-linear method for estimation of gravity model has been perfectly agreed. the importance of this study is the est...

Dykes, A. C., M. E. Fultz, M. L. Norton, and G. L. Wright. Microtubule-dependent PKClocalization in A7r5 smooth muscle cells. Am J Physiol Cell Physiol 285: C76–C87, 2003. First published March 12, 2003; 10.1152/ ajpcell.00515.2002.—Using laser scanning confocal, fluorescence resonance energy transfer (FRET), and atomic force (AFM) microscopy, we investigated association of protein kinase C (PK...

A long with the development of electronic banking as a result of rapid growth of information technology, many banking indices including concentration are affected. This influence is made among different variables of which the amount of banks’ deposits and the level of deposit attraction are the most important. This study the influence of electronic banki...