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The Caribbean Examinations Council (CXC) is an examination board in the Caribbean. [ 1 ] [ 2 ] It was established in 1972 [ 3 ] under agreement by the participating governments in the Caribbean Community to conduct such examinations as it may think appropriate and award certificates and diplomas on the results of any such examinations so conducted.
The Chief Executive of AQA runs the organisation on a day-to-day basis, while being accountable to the AQA Council. The role was known as the Director General from its introduction in April 1998 until July 2010. [21] Kathleen Tattersall OBE, 1 April 1998 – 30 September 2003 [22] [23] Mike Cresswell CBE, 1 October 2003 – 31 March 2010 [24] [25]
According to the British Department for Education, in the academic year 2014/15, approximately 7.3%, 2.7%, 1.0%, and 0.3% of all the candidates from the GCSE cohort (548,480) achieved one to four A*s or a better result in the GCE A-level examination. This percentile rank is one important input for equating the levels in both examinations.
However, in the Physics paper 1 exam, a topic that was stated as "Not Assessed" came up; AQA accepted the mistake and awarded all students the full 9 marks to the question. [70] Also, in 2022, a question on one of the higher Maths papers was leaked hours before students sat them.
The heavily computational AP Physics B course served as the College Board's algebra-based offering for four decades. As part of the College Board's redesign of science courses, AP Physics B was discontinued; therefore, AP Physics 1 and 2 were created with guidance from the National Research Council and the National Science Foundation. [2]
CXC chemokine receptors are integral membrane proteins that specifically bind and respond to cytokines of the CXC chemokine family. They represent one subfamily of chemokine receptors , a large family of G protein-linked receptors that are known as seven transmembrane (7-TM) proteins, since they span the cell membrane seven times.
Paper can be used in lithium-ion batteries as regular, commercial paper, or paper enhanced with single-walled carbon nanotubes. Enhanced paper is used as the electrode and as the separator which results in a sturdy, flexible battery that have great performance capabilities such as good cycling , great efficiency, and good reversibility.