Pico-coulomb charge measured at BELLA to percent-level precision using a Turbo-ICT

1 Using Ohm ’ s Law to Calibrate a Picoammeter to 0 . 4 Pico - ampere Precision

Using Ohm's Law to Calibrate a Picoammeter to 0.4 Pico-ampere Precision

We present an experimental method based on Ohm’s Law to calibrate the Keithley 6485 picoammeter with the calibration error less than 0.4 pico-ampere (pA), which is specified as the highest sensitivity of this instrument. The maximum calibration difference between the measurement current and the calibration current in the picoammeter’s 2 nano-ampere (nA) range is 0.25 pA. This difference is far ...

ICT and attainment at primary level

During the last six months the British Educational Communications and Technology Agency (BECTa) has published two reports (downloadable from http://www.becta.org.uk/) on the relationship between information and communication technology (ICT) and attainment levels of primary school children in national tests. Together, they constitute a significant contribution to the debate over the place of IC...

Enhancing learning with ICT at primary level

This study looks at three primary schools which have been successful in integrating ICT into the teaching and learning process. It confirms that a range of organisational features are correlated with successful implementation (eg, a sound learning environment, headteacher commitment, good forward planning etc) and goes on to argue that staff commitment plays a pivotal role in the process. This ...

Perinatal outcomes at Bella Coola General Hospital: 1940 to 2001.

OBJECTIVE To describe perinatal outcomes (mortality, weight, condition at birth) at an isolated, rural hospital. DESIGN A retrospective cohort study. STUDY POPULATION Neonates born to women beyond 20 weeks' gestation who delivered in the Bella Coola General Hospital (BCGH) between Mar. 7, 1940, and June 9, 2001, inclusive. MAIN OUTCOME MEASURES Information collected from the labour and de...