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It was originally defined as "the quantity or mass of radium emanation in equilibrium with one gram of radium (element)", [1] but is currently defined as 1 Ci = 3.7 × 10 10 decays per second [4] after more accurate measurements of the activity of 226 Ra (which has a specific activity of 3.66 × 10 10 Bq/g [5]).
[1] [2] It is usually given in units of becquerel per kilogram (Bq/kg), but another commonly used unit of specific activity is the curie per gram (Ci/g). In the context of radioactivity , activity or total activity (symbol A ) is a physical quantity defined as the number of radioactive transformations per second that occur in a particular ...
Originally, Boston College was where the first Freshman Orientation class was offered in the year 1888. Reed College, based in Portland, Oregon, was the first institution to offer a course for credit when, in 1911, they offered a course that was divided into men-only and women-only sections that met for 2 hours per week for the year.
In order to be considered, students must have a minimum 3.0 GPA, and winners are determined based on merit and financial need. Amount: $1,000 Deadline: October 15, 2024 or March 15, 2025
The Curie is a unit of measurement (3.7 × 10 10 decays per second or 37 gigabecquerels) used to describe the intensity of a sample of radioactive material and was named after Marie and Pierre Curie by the Radiology Congress in 1910. [21] [22]
The first day of classes began Wednesday for Coastal Carolina’s largest freshman class.
Freshman class artwork, from East Texas State Normal College's 1920 Locust yearbook. A freshman, fresher, first year, or colloquially frosh, [1] is a person in the first year at an educational institution, usually a secondary school or at the college and university level, but also in other forms of post-secondary educational institutions.
The University of California has an arrangement to accept many students conditionally to one of its 10 undergraduate campuses if students first complete two years of community college; the plan extended these so-called "provisional offers of admission" to 12,700 students in the year 2000 (before the tenth campus opened). [61]