What is the grade of a tumour? Grading is a way of dividing tumour cells into groups. To work out the grade, an expert called a pathologist looks at a sample of the brain tumour. They examine the ...

Find your added subjects in My Bitesize. Try this quiz based on GCSE Geography past papers. Choose the topic you would like to revise and answer the questions. GCSE Geography: exam-style questions ...

Tropical rainforests are hot and wet. They have high temperatures and heavy rainfall throughout the year. Tropical rainforests lie along the equator, mainly between the Tropics of Cancer and Capricorn ...

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Abstract: We have implemented a light-detection and ranging (LiDAR) system using a single-chip solid-state beam scanner and demonstrated 20-m ranging and imaging operation. The beam scanner is ...