quantitative

Thus, Margenau remarks: `` A large number of unrelated epicycles was needed to explain the observations, but otherwise the ( Ptolemaic ) system served well and with quantitative precision.

During the period from 1 July 1960 through 31 January 1961, additional research affiliations were effected with the U. S. Army Medical Research and Development Command to conduct research in procedures for quantitative electron microscopy, and for the study of biophysical and biological studies of the structure and function of ocular tissue.

Other scientific agencies, both Federal and civilian, supported studies in quantitative electron microscopical approach to microchemistry and microcytochemistry ; ;

In the future, quantitative demand will be greater because of the expansion of the economy, and the qualitative need will be greater still.

It is important to consider and experimentally verify this influence since quantitative nuclear resonance is becoming increasingly used in investigations of structure.

Much new equipment and many unique techniques have been developed for the quantitative exposure of experimental animals to aerosols of infectious agents contained in particles of specified dimensional characteristics.

Much information has been gathered relative to quantitative sampling and assesment techniques.

Previous experiences are obviously of great importance for the qualitative and quantitative emotional response.

( Robert Chiang, J. B. Jackson, P. J. Flory ) Carefully executed melting studies on this system ( M. J. Richardson ) permit quantitative estimation of the instability engendered by reduced crystallite length.

The field of chemistry uses analysis in at least three ways: to identify the components of a particular chemical compound ( qualitative analysis ), to identify the proportions of components in a mixture ( quantitative analysis ), and to break down chemical processes and examine chemical reactions between elements of matter.

Much emphasis was given to quantitative data, seen as the key to unlocking all of social history.

However, Paris ignored the powerful developments in quantitative studies underway in the U. S. and Britain, which reshaped economic, political and demographic research in those countries, while France fell behind.

* Histoire et mesure ( 1986-200 ), articles on quantitative history.

124-126 .</ ref > While other philosophers also recognized such transitions in states of matter, Anaximenes was the first to associate the quality pairs hot / dry and cold / wet with the density of a single material and add a quantitative dimension to the Milesian monistic system .< ref > Kirk, G. S., J. E.

Lavoisier's researches included some of the first truly quantitative chemical experiments.

He was essentially a theorist, and his great merit lay in the capacity of taking over experimental work that others had carried out — without always adequately recognizing their claims — and by a rigorous logical procedure, reinforced by his own quantitative experiments, of expounding the true explanation of the results.

* Arterial Spin Labeling, a quantitative MRI technique for measuring cerebral perfusion

Qualitative analysis gives an indication of the identity of the chemical species in the sample and quantitative analysis determines the amount of one or more of these components.

Atomic absorption spectroscopy ( AAS ) is a spectroanalytical procedure for the quantitative determination of chemical elements employing the absorption of optical radiation ( light ) by free atoms in the gaseous state.

Although observations of some aerodynamic effects such as wind resistance ( e. g. drag ) were recorded by Aristotle, Leonardo da Vinci and Galileo Galilei, very little effort was made to develop a rigorous quantitative theory of air flow prior to the 17th century.

Some expressed incomprehension or even hostility, varying from a rejection by the archaeological mainstream of what they saw as an archaeoastronomical fringe to an incomprehension between the cultural focus of archaeologists and the quantitative focus of early archaeoastronomers.

The assumption that there is no arbitrage is used in quantitative finance to calculate a unique risk neutral price for derivatives.

Given the complexity of the calculations involved and the convoluted structure that a convertible bond can have, an arbitrageur often relies on sophisticated quantitative models in order to identify bonds that are trading cheap versus their theoretical value.

In parallel to this overall development, the pioneering work of D ' Arcy Thompson in On Growth and Form also helped to add quantitative discipline to biological study.

" Educators are now adjusting their curricula to focus on more quantitative concepts and tools.