The effects of chloramphenicol and p-fluorophenylalanine (p-FPA) on growth, proportion of motile cells, average rate of motility, and the chemotactic response of a methionine auxotroph of Escherichia coli K-12 were studied. Kinetic studies revealed that the inhibition of chemotaxis by p-FPA can be explained by the effect on growth, proportion of motile cells, and average rate of motility rather...

-This paper describes a project to enhance SW project effort estimation at a SW production unit (SPU) within, Nokia Corporation. The SPU produces embedded SW for Nokia's DX200 telecom switches. Within that project the standard function types (EI, EO, EQ, ILF, EJF) of the original function point analysis (FPA) were replaced by selected elements of the Nokia's DX200 switching SW architecture. Dat...

having in mind that ir theories include fpa aspect, the main purpose of this paper is to examine the contribution of fpa in these theories. the necessity of this study become clearer when one acknowledges that fp makers should pay attention accurately to relationship between theory and practice in order to make successful rational decision in new complicated world. this enables them not only to...

1 Linux is a popular operating system for embedded systems. Some embedded systems use processors without floating point accelerators (FPA) or floating point units (FPU), in order to satisfy cost and power consumption requirements. This paper describes and compares optimization options for software implementation of floating point operations on systems without FPA or FPU. Our results show that s...

Research conducted for the Army has recently developed an FPA (focal plane array) integrated test and evaluation system to provide a testbed for evaluating FPA characteristics and resulting object detection effectiveness. The system design offers various combinations of image processing algorithms with real–time display of raw and processed (i.e., resulting from the application of each chosen a...

Floating-point arithmetic is an essential ingredient of embedded systems, such as in the avionics and automotive industries. By nature, many of these applications are safety-critical, requiring rigorous mathematical methods such as model checking to verify the adherence to safety standards. One of the bottlenecks in comparing different approaches to the floating-point program verification probl...

Thrombin converts fibrinogen to fibrin monomer by cleaving fibrinopeptides A and B (FPA and FPB) from the amino terminal ends of the A (alpha) and B (beta) chains. A radioimmunoassay capable of measuring the A peptide in human blood as an index of thrombin action in vivo has been described previously. This paper describes the development of a radioimmunoassay for FPB and the use of both assays ...

Replication protein A (RPA), essential for DNA replication, repair and DNA damage signalling, possesses six ssDNA-binding domains (DBDs), including DBD-F on the N-terminus of the largest subunit, RPA70. This domain functions as a binding site for p53 and other DNA damage and repair proteins that contain amphipathic alpha helical domains. Here, we demonstrate direct binding of both ssDNA and the...

We have used steady-state fluorescence polarization anisotropy (FPA) of ethidium probe molecules bound to DNA to investigate DNA-DNA interactions and the effect of high densities of intercalating drugs on the internal motions of DNA responsible for depolarization of the ethidium fluorescence. To calibrate the method, we examined the effect of DNA length on (FPA) using DNA varying in size from 1...