Ribosomes are multicomponent macromolecular particles and
are essential for the survival of cells in all organisms. The ribosome's
universal function is to catalyze polypeptide synthesis through
translation of mRNA transcripts. Ribosomes from Escherichia coli,
eubacterial organisms, have a sedimentation coefficient of 70S and are
composed of 30S and 50S ribonucleoprotein...
Sudden changes occur where the mean values associated with two adjacent non-overlapping
windows of data are anomalously different, and the transition between the
window means occurs over a scale that is small relative to the scale of the windows.
Positions of sudden changes can be economically retrieved. The sudden change...
The North Potwar Deformed Zone (NPDZ) is part of the active foreland fold-and-
thrust belt of the Salt Range and Potwar Plateau (SR/PP) in northern Pakistan.
About 500 km of seismic reflection profiles are integrated with surface geologic and
drilling data to examine the structure of the NPDZ, in general,...
The oldest sedimentary and metasedimentary rocks exposed
in the Himalayan foothills of Pakistan record a gradual transition
seaward from the evaporites of the Salt Range Formation to pelitic
sediments deposited in deeper water to the north. The Upper
Proterozoic Tanawal Formation was derived from erosion of a
northern highland produced...
The interaction of skeletal muscle phosphofructokinase
with a variety of acidic proteins including calmodulin and
troponin C and with nucleic acids (RNA and DNA) is manifest
in a reversible, time-dependent loss of catalytic activity.
The inactivation is affected by a number of factors.
Substrates (fructose-6-phosphate and ATP), positive
effectors (fructose-2,6-bisphosphate,...
This book is a guide to the plant associations of the Oregon Dunes National Recreation Area. It includes general descriptions of the physical and biological setting of the Recreation Area: its climate, geology, landscape; soils, wildlife, and ecological processes. Analysis of quantitative field data identified 52 plant associations occurring in...
Environmental concerns about urban air quality, global climate change, energy
security and economic considerations motivate a growing interest in alternative fuels for
the transportation sector. Ethanol, a fermentation-derived fuel, can be produced by
bioconversion of renewable materials, such as wood, grass, and waste. Combustion of
ethanol fuel, in both neat...