Polycomb-repressive complexes (PRCs) play key roles in development by repressing a large number of genes involved in various functions. Much, however, remains to be discovered about PRC-silencing ...

Human factors (also referred to as human factors psychology and human factors engineering) is an applied field of study that examines human abilities, limitations, behaviors, and processes in order to ...

Angiogenesis is necessary for the growth of solid tumours and the dissemination of malignant cells (Folkman, 1990). Recent evidence also points to a role of angiogenesis and angiogenesis-related ...

Ewing's sarcoma family of tumours (ESFT) is a malignant small round-cell tumour of the bone and soft tissues. It is characterised by a strong tendency to invade and form metastases. The ...

American Journal of Sociology, Vol. 32, No. 2 (Sep., 1926), pp. 177-205 (31 pages) I. The evolution of culture may be separated into three general stages, those of (1) the lowest animal types, (2) ...

Basic and non-basic are the two broad industry categories. Basic industries consist of small and large businesses that sell primarily to external customers. Non-basic industries consist of primarily ...