• Publications
  • Influence
Enzymatic specificity of three ribosome-inactivating proteins against fungal ribosomes, and correlation with antifungal activity
Abstract. Ribosome-inactivating proteins (RIPs) are enzymes that cleave a specific adenine base from the highly conserved sarcin/ricin (S/R) loop of the large ribosomal RNA, thus arresting proteinExpand
  • 50
The effect of ultra-violet light upon the developing eggs of ascaris megalocephala
  • N. Stevens
  • Biology
  • Archiv für Entwicklungsmechanik der Organismen
  • 1 June 1909
Summary1)When the development of one or more blastomeres of the eggs ofAscaris megalocephala in 2- or 4-cell stages, is prevented by exposure to the rays of ultra-violet light for 6 to 8 hours, theExpand
  • 18
Notes on regeneration in planaria lugubris
  • N. Stevens
  • Biology
  • Archiv für Entwicklungsmechanik der Organismen
  • 1 December 1901
  • 11
A histological study of regeneration in planaria simplicissima, planaria maculata and planaria morgani
  • N. Stevens
  • Biology
  • Archiv für Entwicklungsmechanik der Organismen
  • 1 August 1907
  • 9
Observations of fire ants (Solenopsis invicta Buren) attacking apple snails (Pomacea paludosa Say) exposed during dry down conditions
Apple snails (Pomacea paludosa Say) in Florida wetlands and lakes must contend with water level fluctuations that periodically result in dry downs.1 In recent years we have conducted field andExpand
  • 17
Notes on regeneration in Planaria simplicissima and Planaria morgani
  • N. Stevens
  • Biology
  • Archiv für Entwicklungsmechanik der Organismen
  • 1 June 1909
Summary1)In longitudinal halves of transverse strips of bothPlanaria simplicissima andP. morgani, the lateral half of the brain and the lateral eye develop much more rapidly than the median half ofExpand
  • 2
Notes on regeneration in stentor coeruleus
  • N. Stevens
  • Biology
  • Archiv für Entwicklungsmechanik der Organismen
  • 21 May 1903
Summary1)In the formation of a new peristomal field during fission of Stentor coeruleus, intercalation of new light stripes begins, before the peristomal band appears and may or may not be completedExpand
  • 4
Regeneration in Antennularia ramosa
  • N. Stevens
  • Biology
  • Archiv für Entwicklungsmechanik der Organismen
  • 1 November 1902
Conclusions1)The kind of regeneration at a cut end of Antennularia ramosa is not determined by polarity, or by orientation of the piece with respect to gravity, or by conditions existing at the otherExpand
  • 3
Experimental studies on eggs of Echinus microtuberculatus
  • N. Stevens
  • Biology
  • Archiv für Entwicklungsmechanik der Organismen
  • 1 November 1902
Conclusions1)A part of an Echinus egg, containing a centrosome and a small number of chromosomes (4–12), may go as far as the fifth or sixth division after the operation, without returning to theExpand
  • 4