Activity is determined by counting, with the aid of radiation detectors and electronic circuits, the number of particles and photons (pulses of electromagnetic energy) ejected from a radioactive material during a convenient time interval.
Important publications on CTV definitions in different tumour types have appeared in recent years to aid the radiation oncologist in this respect[ 16 ].
Another pending question is whether morphological innovations may have aided the radiation of the core ruschioids.
PRC1 existed in the last common ancestor of seed plants where it likely played an important regulatory role, aiding their radiation.
More than 7 years after its initiation, PREDICT is still a centre wide program involving clinicians, basic scientists, leaders and core staff (nurses, care aids, therapists, physicists, radiation and medical oncologists, administrative and clerical staff), all working together to achieve a common research goal while providing cancer care.
The chlorobenzenes in water samples were extracted directly onto an ionic liquid single-drop in headspace mode under the aid of microwave radiation.
With the aid of a radiation model that includes the excitation cross sections of ground-state and metastable argon atoms, the observed plasma spectra enable the characterization of nonequilibrium electron energy distributions.
With the aid of synchrotron radiation, the energy of the incident beam can be tuned to the absorption edge of, e.g., rubidium or bromide counterions.
Mice were observed daily following tumour cell injection; 10 days after xenograft transplantation, with the aid of GE HiSpeed CT, radiation was delivered accurately to the brain tumours of mice, 2 Gy each time, by an ELEKTA Precise accelerator; the body did not receive any radiation.
This capacity, in combination with environmental changes at the end of the Proterozoic [ 3, 4], has been proposed as one of the biological characters that aided the Cambrian radiation [ 5].
