Echoes from the dreamtime

T1 Maps From Shifted Echoes and Stimulated Echoes

Theory The proposed sequence is shown in Figure 1. The basic idea is to obtain a spin echo (SE) and a stimulated echo (STE) with different T1 weighting for T1 calculation. In contrast to the FastPACE technique, both echoes were acquired separately. Then, only magnitude images are required which allows for exploiting the Half Fourier technique and using phased array coils. Acquisition of the tru...

@bullet Echoes from the Big Bang

Echoes from a Warped Dimension

The Randall-Sundrum (RS) model, based on a slice of warped 5D spacetime, was originally introduced to explain the apparent hierarchy between the scales of weak and gravitational interactions. Over the past decade, this model has been extended to provide a predictive theory of flavor, as well as to address various constraints from precision data. In this talk, we will present a brief review of t...

Bio-architectural technology and the Dreamtime knowledge of Spinifex Grass

This paper is premised on several Australian Aboriginal myths (or sacred histories) from the Georgina River Basin region of Central Australia that concern the Triodia grasses known locally as spinifex (or aywerte). These sacred histories provide an epistemological foundation to the regional intellectual property over traditional spinifex technologies utilized for architectural, material and med...

Dust Echoes from Gamma-Ray Bursts.

The deviation from the power-law decline of the optical flux observed in GRB 970228 and GRB 980326 has been used recently to argue in favor of the connection between gamma-ray bursts and supernovae. We consider an alternative explanation for this phenomenon, based on the scattering of a prompt optical burst by 0.1 M middle dot in circle dust located beyond its sublimation radius 0.1-1 pc from t...