HAVING a vivid recollection of the pleasure I derived born Prof. Gibbs's attacks upon the quaternionic system in the rather one-sided discussion that took place about two years ago in this journal ...

\(power \ of \ a \ lens \ (D) = \frac{1}{focal \ length \ (m)}\) A lens has a power of -3.33 dioptres. Calculate the focal length and state what type of lens it is.

A talented teenager tragically took his own life after being told he had failed his maths GCSE before his parents were told he had actually passed the next day, an inquest heard. Alex Henshaw ...

GCSE exams could be cut in order to reduce pupil’s stress, Labour’s curriculum review is expected to recommend. In an interim report published yesterday, concerns were raised by ministers that too ...

Because our interest lies in the development of plant viruses as immunotherapies targeting human health as well as gene delivery vectors for agriculture applications, we turned toward tobacco mosaic ...

Lentiviruses have been extensively used as gene delivery vectors since the mid-1990s. Usually derived from the human immunodeficiency virus genome, they mediate efficient gene transfer to non-dividing ...