46 research outputs found
A Simple Electronic Apparatus to Record Continuously Changes in Pupillary Size
Chopped infra-red light is beamed at the iris and pupil and the infra-red light reflected gathered by a photo-transistor. A continuous pen recording of changes in reflectance is obtained which can be related to changes in pupil size. </jats:p
Recognition and chemical characterization of fossil soils developed on alluvium; A Late Ordovician example
Evaluation of the Binding of Polyhedral Borane Compounds to Intracellular Protein Moieties and Monomeric Amino Acids
Synthesis and in vivo murine evaluation of Na4[1-(1'-B10H9)-6-SHB10H8] as a potential agent for boron neutron capture therapy
Synthesis of boron-containing cholesterol derivatives for incorporation into unilamellar liposomes and evaluation as potential agents for BNCT
Model studies directed toward the application of boron neutron capture therapy to rheumatoid arthritis: Boron delivery by liposomes in rat collagen-induced arthritis
The Effect of Posterior Lobe Pituitary Extracts On the Blood Pressure of <i>Ornithorhynchus</i> (Duck-Billed Platypus)
ABSTRACT
The carotid blood-pressure response to intravenous injection of histamine-free extracts of mammalian posterior pituitary extracts in the platypus (Ornithorhynchus) is described. Pitressin evokes a simple pressor response. Pitocin evokes a simple depressor response. Mixtures of pitressin and pitocin evoke a fall and a subsequent rise. Histamine evokes a depressor response. A preliminary note is made of the simple pressor response to pitressin and depression to pitocin in the deeply-anaesthetized bird and in a lizard. Comparison is made between the responses to posterior pituitary extracts in reptiles, birds, the platypus and eutheria. The possible phylogenetic significance of these observations is discussed.</jats:p
