Factors Determining Physical Size and Proportions

Factors determining physical activity of Ukrainian students.

OBJECTIVE Scientific reports provide information concerning an insufficient level of physical activity of societies. The objective of the study is recognition of the level of physical activity among Ukrainian students, and factors which condition this activity: gender, place of residence, self-reported physical fitness, and the BMI. METHODS The study was conducted in 2013 among 2,125 Ukrainia...

Genetic control of floral size and proportions.

Floral size is an ecologically important trait related to pollination success and genetic fitness. Independently of the sexual reproduction strategy, in many plants, floral size seems to be controlled by several genetic programs that are to some extent independent of vegetative growth. Flower size seems to be governed by at least two independent mechanisms, one controlling floral architecture t...

The Principle of Physical Proportions

We propose the principle of physical proportions, according to which all laws of physics can depend only on the ratio of known quantities of the same type. An alternative formulation is that no dimensional constants should appear in the laws of physics; or that all “constants” of physics (like the universal constant of gravitation, light velocity in vacuum, Planck’s constant, Boltzmann’s consta...

The Course of Physical Growth Changes in Body Size • Changes in Body Proportions

Sample Size Calculation for Comparing Proportions

In clinical research, in addition to continuous responses, primary clinical endpoints for assessment of efficacy and safety of a drug product under investigation could be binary responses. For example, in cancer trials, patients’ clinical reaction to the treatment is often classified as response (e.g., complete response or partial response) or nonresponse. Based on these binary responses, the p...