منابع مشابه
Ancillary Statistics: a Review
In a parametric statistical model, a function of the data is said to be ancillary if its distribution does not depend on the parameters in the model. The concept of ancillary statistics is one of R. A. Fisher’s fundamental contributions to statistical inference. Fisher motivated the principle of conditioning on ancillary statistics by an argument based on relevant subsets, and by a closely rela...
متن کاملSoft Tissue & Ancillary Techniques
The Chiropractic & Osteopathic College of Australasia is a non-profit organisation dedicated to providing high quality continuing education for chiropractors and osteopaths. In the past the College has focussed its education programs on the diagnostic and clinical sciences but for its 'Third Biennial Conference' held in October 1999 the theme was on soft tissue therapies. The conference was ent...
متن کاملFast - atom - bombardment mass spectrometry
A detailed study of the mass spectra of peptides produced by the new technique of fast-atom bombardment is reported. Molecular weights of unmodified peptides containing up to 21 amino acids have been determined. In favourable cases, the molecular-weight determination may be made on as little as 0.1 nmol of sample. Positive-ion and negative-ion spectra are obtained with equal facility. With samp...
متن کاملEvidence for cometary bombardment episodes
Evidence is found that large terrestrial impacts tend to cluster in discrete episodes, with characteristic separations 25–30 Myr and durations of about 1–2 Myr. The largest impactors are strongly concentrated within such events, and the Cretaceous–Tertiary extinctions occurred within one of them. The evidence also indicates the presence of a weak periodicity, which might be ∼24, ∼35 or ∼42 Myr ...
متن کاملElectron Bombardment of Biological Materials
A study has been undertaken of the rate of inactivation of spores of the ascomycete fungus Aspergillus niger when bombarded in vacuum, with homogeneous beams of cathode rays of energies from 4 to 15 electron kv. and current densities of 1 x 10(-7) to 3 x 10(-6) amperes per square cm. These velocities and densities are in the range of those of showers of secondary electrons produced in biologica...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review A
سال: 2018
ISSN: 2469-9926,2469-9934
DOI: 10.1103/physreva.97.052120