a Developmental aspects of behaviour. Carcinus maenas, Callinectes sapidus, Macropipus spec. 

 (Decapoda, Crustacea) 



NEDVlDEK, J.; RNDr. - Dept. of Exp. ZooL, Charles Univ., Vinicna 7, 12844 PRAHA 2, Czechoslo- 

 vakia 



a Nucleic acids and subcellular particles in oogenesis and early development. (Amphibia) (with V. 

 HABROVA) 



NEEDHAM, A. E.; D.Sc. - Dept. of ZooL, Univ. of Oxford, South Parks Rd., OXFORD 0X1 3PS, 

 England 



a Review of regeneration and general metabolism 



NEEDHAM, J.; Dr., Prof. (Emer.) - Gonville and Caius Coll., CAMBRIDGE, England 



NELEMANS, S. A.; Drs. - Hubrecht Lab. (Intern. Embryol. Inst.), Uppsalalaan 8,3584 CT UTRECHT, 

 Netherlands 



a Regulation of the cell cycle and its significance for development and differentiation: the role of 

 changes in membrane properties and structure, ion and cyclic nucleotide metabolism. Neuro- 

 blastoma cells, Mus musculus (Rodentia) (with S. W. de LAAT, P. T. van der SAAG, W. H. 

 MOOLENAAR, J. BOONSTRA, C. L. MUMMERY and E. J. J. van ZOELEN) 



NELLEN, W.; Dipl.Biol. - Inst, fur Allgem. Biol, der Univ., Universitatsstr. 1,4000 DUSSELDORF, 

 BRD (Germany) 



a Processing of genetic information; isolation of mRNA and in vitro translation systems. Droso- 

 phila hydei (Diptera) 



NELSON, L.; Fil.kand. - Dept. of ZoophysioL, Univ. of UmeS, 901 87 UMEA, Sweden 



a Mitochondrial differentiation during ontogenesis. Xenopus laevis (Anura) 



NETZEL, H. E. M.; Dr., Prof. - Inst, fur Biol. Ill der Univ., Morgenstelle 28, 7400 TUBINGEN, 

 BRD (Germany) 



a Shell formation: secretion and morphogenesis. Arcella dentata, Centropyxis discoides, Difflugia 

 oviformis (Rhizopoda) 



b Cytomorphogenesis: division and regeneration of thecae; cyst formation. Gonyaulax polyedra, 

 Peridinium cinctum (Dinophyceae) 



NEUBERT, J.; Dr.rer.nat. - Inst, fur Flugmedizin der D.F.V.L.R., Godesberger Allee 70, 5300 BONN 

 2, BRD (Germany) 



a Effect of simulated weightlessness on ultrastructure of the embryonic vestibular organ. (Anura) 

 (with W. BRIEGLEB) 



b Teratogenic and genetic anomalies induced by simulated weightlessness (fast running clinostat). 

 Tribolium confusum (Coleoptera) (with W. BRIEGLEB) 



c Topology of polar granules in eggs grown on the fast clinostat. Tribolium confusum (Coleoptera), 

 Heterandria formosa (Teleostei) 



NEUMANN, D.; Dr.rer.nat., Prof. - Zool. Inst, der Univ., Weyertal 119, 5000 K0LN41, BRD (Ger- 

 many) 



a Timing of pupation and emergence by physiological clock mechanisms. Clunio marinus (Chiro- 

 nomidae, Diptera) 



b Growth and reproduction rate under the influence of photoperiod and daily fluctuations of tem- 

 perature. Chaoborus vitripennis (Diptera), Daphnia longispina (Cladocera, Crustacea) 



NEVILLE, P. A. J.; Dr.d'fetat, Prof. - Lab. de Morphogen. Veget., Univ. d'Aix-Marseille III, Fac. 

 St.-Jerome, rue Henri Poincare, 13397 MARSEILLE Cedex 4, France 



NEW, D. A. T.; Ph.D. - Marshall Lab., Dept. of Physiol., Univ. of Cambridge, Downing St., 

 CAMBRIDGE CB2 3EG, England 



a Development of methods for growing embryos in culture. Rattus spec, Mus musculus (Roden- 

 tia) 



b Growth and differentiation of the placenta. (Rodentia) 



c Applications of culture methods to problems of teratogenesis 



NEWCOMB, R. - A.R.C. Inst, of Anim. Physiol., Anim. Res. Station, 307 Huntingdon Rd., 

 CAMBRIDGE CB3 OJQ, England 



a In vitro maturation and in vivo and in vitro fertilization of oocytes; culture of embryos and 

 preservation by deep freezing; development of a non-surgical method for recovery of embryos 

 and the investigation of factors affecting the survival of embryos after non-surgical transfer; 

 factors affecting twinning by egg transfer. Bos taurus (Artiodactyla) 



NEWTH, D. R.; Ph.D., Prof. - Dept. of ZooL, Univ. of Glasgow, GLASGOW Gl 2 8QC, Scotland, UK 



NEYFAKH, A. A.; Dr. Biol., Prof. - N.K.Koltzov Inst, of Devi. Biol., USSR Acad, of Sci., 26 VavUov 

 St., MOSCOW 117334, USSR 



a Regulation of enzyme activity in early development; feed back systems; microinjection of enzyme 

 into egg; distribution of enzymes in egg. Misgurnus fossilis (Teleostei) 



b Gene expression in early development; genetical control of enzyme activity, role of non-histone 

 proteins in regulation of gene activity; hybridization. Same species as a, and other spp. (Cypri- 

 noidei, Teleostei) 



NGOC-HO, Ms. N.; Dr.3e cycle - Dept. of ZooL, Brit. Museum (Nat.Hist.), Cromwell Rd., LONDON 

 SW7 5 BD, England 



a Larval development. (Thalassinidea, Decapoda, Crustacea) 



NICOLAS, P. B. G.; Dr. - Dept. de Biol. Gen. etAppl., Univ. de Lyon 1,43 Bd. du 11 Novembre 1918, 

 69621 VILLEURBANNE, France 



a Genetics of chloroplast development mutants. Euglena gracilis (Euglenophyceae) 



NICOLET, G.; D.Sc. - Lab. d'Embryol. Exp., Inst. d'HistoL, Univ. de Geneve, 20 Rue de I'Ecole de 

 Medecine, 1211 GENEVE 4, Switzerland 



NICOTRA, Ms. A.; Dr.biol. - 1st. di Zool. "F. Raffaele", Viale deU'Universita 32, 00161 ROMA, 

 Italy 



83 



