Many questions remain unanswered

The Key Questions Remain Unanswered

First, we described an illustrative notional planning magnitude for each threat based on a stylized threat and risk assessment, while noting that a more comprehensive threat and risk assessments could reveal that these illustrative magnitudes were either too high or too low. Our illustrative threat assessments relied on historical data revealing observed frequencies and consequences of each thr...

Eccentric exercise: many questions unanswered.

LOCOMOTION IS ARGUABLY one of the most ubiquitous and important manifestations of life, equally important to feeding as to escape predators. Evolution came up with three molecular motors to power motion: the actomyosin system Levitsky (11); the microtubule, dynein-based flagellar motors of eukaryotes (13); and the flagellar rotary motors of bacteria (15). All three systems serve propulsion, i.e...

Percutaneous PFO closure, further data but many unanswered questions.

The pace of technological development in interventional congenital cardiology over the last two decades has been fast and relentless. Successful and reliable closure of secundum atrial septal defects in the catheter laboratory translated to interest in the use of similar devices for the occlusion of the patent foramen ovale (PFO), a common remnant of the fetal circulation. The pathological pote...

HIGHLIGHTED TOPIC Eccentric Exercise Eccentric Exercise: Many questions unanswered

LOCOMOTION IS ARGUABLY one of the most ubiquitous and important manifestations of life, equally important to feeding as to escape predators. Evolution came up with three molecular motors to power motion: the actomyosin system Levitsky (11); the microtubule, dynein-based flagellar motors of eukaryotes (13); and the flagellar rotary motors of bacteria (15). All three systems serve propulsion, i.e...

E-Learning: some unanswered questions