OPAS, Ms. J.; M.Sc. - Dept. of Embryol., Zool. Inst., Univ. of Warsaw, Krak. Przedmies'cie 26/28, 



00-927 WARSZAWA, Poland 

 a Changes of cortical properties of oocytes and fertilized eggs. Mus musculus (Rodentia) 

 ORTOLANI, Ms. G.; D.Sc, Prof. - Zool. Inst., Univ. of Palermo, Via Archirafi 18, 90123 PALERMO, 



Italy 

 a Role of membrane in embryonic cell differentiation. (Ascidiacea) 

 b Hybridization and gynogenesis. (Ascidiacea) 



ORTS LLORCA, F.; Prof. (Emer.) - Dept. of Anat., Fac. of Med., Ciudad Univ., MADRID, Spain 

 OSIPOV, V. v.; Dr. - Inst, of Med. Genet., Kashirskoye Chaussee 6a, MOSCOW 1 15478, USSR 

 a Genetic regulation of development of brain, eye, and limbs. Mus musculus (Rodentia) 

 OSTROUMOVA, Ms. T. V. - Chair of Embryol., Biol. Fac, State Univ. of Moscow, Lenin Hills, 



MOSCOW 11 7234, USSR 

 a Interaction between morphogenetic and metabolic processes in early embryonic development. 



(Hydrozoa), Xenopus spp., Rana spp. (Anura) 

 OUAZANA, R.; Dr.spec. - Dept. de Biol. Gen. et Appl., Univ. de Lyon I, 43 Bd. du 11 Novembre 



1918, 69621 VILLEURBANNE, France 

 a Development of cuticular collagen-like proteins during post-embryonic stages and analysis of 



mutants with altered cuticles. Caenorhabditis elegans (Nematoda) 

 OUDHOF, H. A. J.; Dr. - Orthodont. Dept., Dent. Sch., State Univ., Sorbonnelaan 16, 3584 CA 



UTRECHT, Netherlands 

 a Experiments on persistence of cranial sutures till old age; possible causes: bone movements or 



sutural tissue properties (transplantation of bone into suture). Rattus norvegicus (Rodentia) 



(with H. J. van DOORENMAALEN (Dept. of Anat.) and I. S. MARKENS) 

 b Occurence of alkaline phosphatase in the coronal and interfrontal suture. Same species as a 

 OYEN, H. van; Drs. - Netherl. Inst, for Brain Res., IJdijk 28, 1095 KJ AMSTERDAM, Netherlands 

 a Development and correctibility of behaviour. Rattus norvegicus (Rodentia) 

 b Influences of gonadal hormones on brain development and learning. Same species as a 

 OZDZENSKI, W.; Ph.D. - Dept. of Embryol., Zool. Inst., Univ. of Warsaw, Krak. Przedmies'cie 26/28, 



00-927 WARSZAWA, Poland 

 a Differentiation of the somatic and germinal tissues of the gonad. Mus musculus (Rodentia) 

 b Normal development. Clethrionomys glareolus (Rodentia) 

 OZERNYUK, N. D.; Cand.sci. - N.K.Koltzov Inst, of Devi. Biol., USSR Acad, of Sci., 26 Vavilov St., 



MOSCOW 117334, USSR 

 a Biochemistry of development. Misgurnus fossilis (Teleostei) 

 OZOH, P.; B.Sc. - Inst, of Zool., Uppsala Univ., Box 561, 751 22 UPPSALA, Sweden 

 a Effects of pollutants on development. (Teleostei) 



PALA, Ms. M.; Dr. - 1st. di Zool., Univ. di Sassari, Via Murroni 25, 07100 SASSARI, Italy 

 a Fission. Dugesia gonocephala sJ. (Turbellaria) 



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

 vakia 

 a Cytoskeletal proteins in early development of embryos. (Amphibia) 



PALLADINI, G.; Prof. - 1st. di Biol. Gen., Univ. di Roma, Policlinico Umberto I, 00100 ROMA, Italy 

 PALMBACH, L. R. - Inst.of Devi. Biol., USSR Acad, of Sci., Vavilov St. 26, MOSCOW 117334, USSR 

 a Biosynthesis of mitochondria during oogenesis and early development, (with A. V. KOTOMIN) 

 PALTER, Ms. K.; Ph.D. - Abt. Zellbiol., Biozentrum der Univ., Klingelbergstr. 70, 4056 BASEL, 



Switzerland 

 a Locahzation of maternal messages, especially morphogenetic determmant(s) tor pole ceU torma- 



tion, using mutants which either only make pole cells (mat(3)l) or whose Fl are agametic 



(grandchildless) (cloning of maternal messages and subsequent in situ hybridization to developing 



eggs). Drosophila melanogaster (Diptera) 

 PANATTONI, G. L. - Dept. of Hum. Anat., Univ. of Torino, Corso M.D'Azeglio 52, 10126 TORINO, 



a Three-dimensional reconstitution of embryonic structures obtained with mathematical methods 

 b Mathematical models of axoplasmic transport in embryonic motoneurons. Gallus domesticus 



f Avcs^ 

 PANIGEL, M.; Dr.Med., D.Sc, Prof. - Lab. de Biol, de la Reprod., Univ. Paris VI (P. et M. Curie), 



Bat.A, 7eme etage, 7 quai Saint-Bernard, 75230 PARIS Cedex 05, France 

 a Physiology of fetal-maternal exchange. Macaca mulatta, M. fascicularis, Papio cynocephalus (Pri- 

 mates) 

 b Ultrastructure of the placental membrane. (Primates) 



c Ultrastructure of trophoblast during pathological pregnancy. Homo sapiens (Primates) 

 d Fetal visuaUzation in utero (X-ray scanning, echotomography). (Primates) 

 PANNESE, E.; M.D., Prof. - Inst, of Histol., Embryol. and Neurocytol., Univ. of Milano, Via Mangia- 



gaUi 14, 20133 MILANO, Italy 

 a Morphology and histochemistry at the electron microscope level of the degenerative events in 



embryonic spinal ganglia. Gallus gallus (Aves) 

 b Membrane specializations in embryonic spinal ganglia, particularly cell junctions (freeze-fracture 



and lanthanum techniques). Same species as a ,,^or^ 



PANOVA Ms I. G. - Kohzov's Lab. of Cell Differ., Inst, of Devi. Biol., Acad, of Sci. of the USSR, 



Vavilov St. 26, MOSCOW 1 17334, USSR 

 a Dependence of DNA synthesis and cell proliferation in pigment epithehum of the retma upon 



general growth factors of the eye. Rattus norvegicus (Rodentia) 

 PANTELOURIS, E. M.; Ph.D. - Biol. Dept., School of Biol. Sci., Univ. of Strathclyde, George St., 



GLASGOW Gl IXW, Scotland, UK 



86 



