Describes the nature and action of hematopoietic proteins which regulate the production of specific sets of blood cells. Discusses the production of these hematopoietins by recombinant-DNA methods in an effort to enable physicians to treat patients by eliciting production of specific types of blood cells. (CW)

Describes scientific events: computed tomography (CT) scanner and its costs, existence of Upsilon particle in its lowest excited state, animal psychology to determine their capabilities of symbolic communication, findings of Viking mission about Mars and its two moons, and finally gives credit to first discoverer of penicillin. (GA)

This article on the brain is part of an entire issue about neurobiology and the question of how the human brain works. The brain as an intricate tissue composed of cells is discussed based on the current knowledge and understanding of its composition and structure. (SA)

The neuron, called the building block of the brain, is discussed with regard to structure and function. (Author/SA)

The organization of the billions of neurons within the brain and spinal cord of mammals is discussed. (Author/SA)

This discussion focuses on the problem in neurobiology in which neurons are able to make correct connections as the brain develops in utero. (Author/SA)

This article focuses on the mechanisms of the human brain whose function is vision. (SA)

This article focuses on the mechanisms of the human brain which bring about body movements. Included is a discussion of the way in which the brain and spinal cord issue commands and receive signals. (Author/SA)

The specialized regions of the brain which control mental activity and language development are discussed in this article. (Author/SA)

Small systems of neurons are discussed as they relate to studies of simple animals and the generating of behavior from interacting systems. (SA)

The chemical dimension of the function of the brain is discussed in this article. The chemical transmitters or substances are related to the excitatory or inhibitory influence on neurons. (Author/SA)

Describes the symptoms, such as appetite change and mood fluctuation, basic mechanisms, and some treatments of Seasonal Affective Disorder (SAD), Carbohydrate-Craving Obesity (CCO) and Premenstrual Syndrome (PMS). Provides several tables and diagrams, and three reading references. (YP)

Focuses on disorders of the human brain, their causes, and the relationship between environmental and genetic factors. (Author/SA)

This article is a discussion of the current knowledge about the human brain. The need for new ways to examine and think about the brain is discussed. (Author/SA)

Describes a process known as parthenogenesis which produces cloned, early-stage embryos and human embryos generated only from eggs. Speculates that this technology puts therapeutic cloning within reach. (DDR)