OBJECTIVE To assess the reduction of estimated radiation dose in abdominal computed tomography following the implementation of new scan protocols on the basis of clinical suspicion and of adjusted images acquisition parameters. MATERIALS AND METHODS Retrospective and prospective review of reports on radiation dose from abdominal CT scans performed three months before (group A - 551 studies) a...

Recent studies reported converging evidence for action-effect associations if participants adopted an intention-based action control mode in free choice conditions, whereas no evidence for action-effect associations was found when participants adopted a stimulus-based mode in forced choice conditions. However, it is not yet clear whether action control modes moderate acquisition or usage of act...

Gradient-echo MRI of resonance-frequency shift and T2* values exhibit unique tissue contrast and offer relevant physiological information. However, acquiring 3D-phase images and T2* maps with the standard spoiled gradient echo (SPGR) sequence is lengthy for routine imaging at high-spatial resolution and whole-brain coverage. In addition, with the standard SPGR sequence, optimal signal-to-noise ...

In this paper, a new pseudo noise (PN) code acquisition scheme for direct sequence spread spectrum (DS/SS) signals is proposed based on a joint decision rule of two correct cells ( cells) at which the code phase offset between the locally generated and received PN codes is within a desired small value. To derive the joint decision rule, the acquisition problem is modeled as a hypothesis testing...

the present study aimed at determining the relationship between learning styles and the effect of random and blocked practices on learning of badminton serve skills.  in this quasi-experimental study, 48 female high school students were randomly placed in four groups: 1. convergent learning style with random practice, 2. convergent learning style with blocked practice, 3. divergent learning sty...

In this paper, a new pseudo noise (PN) code acquisition scheme for direct sequence spread spectrum (DS/SS) signals is proposed based on a joint decision rule of two correct cells ( cells) at which the code phase offset between the locally generated and received PN codes is within a desired small value. To derive the joint decision rule, the acquisition problem is modeled as a hypothesis testing...

context hamstring acute muscle injuries are prevalent in several sports including afl football (australian football league), sprinting and soccer, and are often associated with prolonged time away from sport. evidence acquisition in response to this, research into prevention and management of hamstring injury has increased, but epidemiological data shows no decline in injury and re-injury rates...

We present an improved and general approach for implementing echo train acquisition (ETA) in magnetic resonance spectroscopy, particularly where the conventional approach of Carr-Purcell-Meiboom-Gill (CPMG) acquisition would produce numerous artifacts. Generally, adding ETA to any N-dimensional experiment creates an N + 1 dimensional experiment, with an additional dimension associated with the ...