Radiological Health—An Over-All View

Improving the Tracking Error Signal Extraction in IR Seeker with Stationary Wagon Wheel Reticle over all Field of View

The accuracy of target position detection in IR seeker depends on the accuracy of tracking error signal (TES) extraction from seeker Field of View (FOV). The type of reticle inside the seeker determines the output modulation signal that carries the TES. In this paper, the stationary wagon wheel reticle is used, which makes the type of the output signal as FM modulation in the linear region of F...

Propolis an over view

A comprehensive modeling procedure for the human granulopoietic system: over-all view and summary of data.

Understanding of the granulopoietic systern in both normal and diseased states might be assisted by the use of a quantitative modeling procedure that relates the underlying cellular events of granulopoiesis studied in the laboratory to the marrow and peripheral blood picture as it might be seen in the clinic. In this way, the modeling procedure could become both an adjunct to ongoing laboratory...

Pacing Spikes All Over

Ventricular safety pacing (VSP) is used to avoid cross talk by delivering ventricular stimulus shortly after an atrial-paced event if ventricular-sensed event occurs. Although VSP is a protective feature that exists for decades in different pacing devices, there are some reports of unfavorable outcomes of this algorithm. More so, health care providers sometimes face difficulties in interpreting...

Bristling all over

They are runners-up in the Current Biology photomicrography competition. During normal development of the nervous system in Drosophila, a process called 'lateral inhibition' ensures that only a single neural precursor is selected from a group of initially equipotent cells. Where lateral inhibition fails, excess neural cells develop, as shown in the image above, where a 'tuft' of thorn-like bris...