Since a total of 30 fluxes are measured or defined, the final system is overdetermined with 4 redundant measurements.
The nature of pop recycling makes it hard to measure, or define, endurance.
Uncertainty refers to that which can't be measured or defined, the darkness about which we know nothing.
However, in spite of how legacy is measured or defined, it is difficult to find accurate studies on how to transform event sites, as Olympic parks or stadiums surroundings, in liveable and sustainable public spaces.
Hidden populations consist of individuals sharing one or more common attributes that are masked from public surveillance, either because they are rare, difficult to measure or define (e.g., jazz musicians [1]), or stigmatized and/or illegal (e.g., injection drug use [2]).
This means that we not only identified items where the authors had measured or defined SES, but we also included items which considered variables often used as proxies for SES (e.g.: education, unemployment).
All parameters were measured or defined according to the investigator's customary practice, including threshold testosterone levels used for diagnosis, time of blood draw for testosterone determination, number of times testosterone levels were measured for diagnosis, placement of measuring tape for waist and hip circumference, and method of blood pressure (BP) determination.
31 Some context factors are difficult to operationalise as measures, but the discipline of seeking measures or defining concepts more precisely is necessary for data gathering and for understanding the influence of these factors.
To start, merit can be extremely difficult to measure or even define, Hanneman says.
Furthermore, theoretical and experimental investigations into NW formation mechanisms can provide important information on many kinetic characteristics (e.g., supersaturations, diffusion lengths and surface energies [1 5, 14 22]) that are otherwise not easy to measure or even define theoretically.
