PIHAN, J. C; Agr. de Sci., D.Sc. - Inst. Europeen d'ficol., 57000 METZ, France 



a Effects of heavy metals on fecundity and embryonic development. Daphnia magna (Cladocera, 



Crustacea) 

 PIJNACKER, L. P.; Ph.D. - Vakgroep Genetica, State Univ. of Groningen, Biol. Qr., Vleugel A, 



Kerklaan 30, 9751 NN HAREN, Netherlands 

 a Oogenesis, spermatogenesis, spermiogenesis, fertilization, and parthenogenesis. Carausius morosus 



(Phasmida); (Acari, Arachnida) 

 b Quantitative cytochemistry, also in relation to differentiation. Same species as a 

 PIJNENBORG, R. K. J.; Ph.D. - Unit for Res. of Human Reprod., Cathol. Univ., Acad. Hosp. St. 



Rafael, 3000 LEUVEN, Belgium 

 a Fertilization and development of preimplantation embryos in vitro : effect of different medium 



constituents on cleavage rate and, after embryo transfer, on ultrastructure of attachment and 



implantation; especially hormonal conditioning of events related with implantation. Rattus 



rattus (Rodentia) 

 b Timing and spatial pattern of trophoblast invasion in relation to histological changes in decidual 



and myometrial blood vessels and the occurrence of inflammatory reactions. Rattus rattus, Meso- 



cricetus auratus (Rodentia), Homo sapiens (Primates) 

 PILLERI, G.; Dr.med., Prof. - Brain Anat. Inst., Untere Zollgasse 71, (Waldau), 3072 



OSTERMUNDIGEN-BE, Switzerland 

 a Entwicklung des Gehirns. Castor canadensis (Rodentia) 

 b Die Protuberantia sclerae am embryonalen Auge. Homo sapiens (Primates) 

 c Ontogenese des Auges. Balaenoptera physalus, B. acutorostrata, Megaptera novaeangliae, Delphi- 



nus delphis, Tursiops truncatus, Delphinapterus leucas (Cetacea) 

 d Regressive evolution of the eye. Platanista indi, P. gangetica, Inia geoffrensis, Pontoporia blainvil- 



lei (Platanistoidea, Cetacea) 

 e Entwicklung der Kdrperform. dieselben Arten wie c 

 f Ontogenese des Zentralnervensysterr.s. dieselben Arten wei c 



g Ontogenesis (especially nervous system). Globicephala melaena (Odontoceti, Cetacea) 

 h General ontogenesis. Platanista gangetica, Pontoporia blainvillei (Cetacea) 

 i Ontogenese der instinktiven Bewegungen und ihr Wiederauftreten als neurologische Symptome 



bei Hirnkrankheiten. Homo sapiens (Primates) 

 PINTO-MACHADO, J. - Inst, of Anat., Fac. of Med., Univ. of Porto, Asprela, 4200 PORTO, Portugal 

 a Prenatal and postnatal effects of cyclophosphamide and other alkylating agents on testis and 



ovary. Mus musculus (Rodentia) 

 b Prenatal effects of cyclophosphamide and other alkylating agents on the lymphoid system. Same 



species as a 

 PIOT, E.; Lic.Chem. - Dept. of Cell Biol., Univ. of Antwerpen, Universiteitsplein 1, 2610 WILRIJK, 



Belgium 

 a Characterisation and role of translational inhibitor RNA from cryptobiotic gastrulae. Artemia 



salina (Anostraca, Crustacea) 

 PIRKiC, A.; M.D. - Dept. of Pathol., Fac. of Dent., Univ. of Zagreb, Clin. Hosp. "Dr. M. Stojanovic", 



41000 ZAGREB, Yugoslavia 

 a Pathology of placenta, gastroenteropancreatic system and endocrine system. Homo sapiens (Pri- 

 mates) 

 PIRRONE, Ms. A. M. - 1st. di Anat. Comp., Univ. di Palermo, Via Archirafi 20, 90123 PALERMO, 



Italy 

 a RNA synthesis in early development. Paracentrotus lividus (Echinoidea) 

 b Isolation of specific mRNAs from embryos (zonal centrif ugation ; oligo-dT cellulose column; 



assay in wheat germ cell free system; polyacrylamide gel fractionation. Same species as a 

 PLATONOV, E. S.; Cand.biol.sci. - Phenogenet. Lab., Inst, of Gen. Genet., USSR Acad, of Sci., 



Gubkin St. 3, 117809 GSP-1, MOSCOW B-333, USSR 

 a Biochemistry and immunology of crystaUins during lens development. Mus musculus (Rodentia) 

 b Gene expression in experimental chimaeras. Same species as a 

 PLEEGING, J. H.; M.D. - Dept. of Anat. and Embryol., State Univ. of Groningen, Oostersingel 69, 



9713 EZ GRONINGEN, Netherlands 

 a Topographical relationships in the intestine during ontogenesis. Mus musculus (Rodentia) 

 b The origin of the pronephric duct. Same species as a 

 PLICKERT, G.; Dr. - Zool. Inst, der Univ., Im Neuenheimer Feld 230, 6900 HEIDELBERG, BRD 



(Germany) 

 a Stolonal pattern formation, especially initiation of lateral buds (branching). Eirene viridula 



(Hydrozoa) 

 b Mechanisms of growth and histogenesis of the terminal stolon. Same species as a 

 POLANI, P. E.; M.D., F.R.S., Prof. - Paediat. Res. Unit, Guy's Hosp. Med. Sch., Guy's Tower, LONDON 



SEl 9RT, England 

 a Male and female meiosis. Mus spec, Acomys spec, Microtus spec. (Rodentia), Homo sapiens 



(Primates) 

 b Developmental cytogenetics, especially origin of aneuploidy. Mus musculus (Rodentia), Homo 



sapiens (Primates) 

 c Developmental biology of female meiosis studied in vivo and in vitro. Mus musculus (Rodentia) 

 POLEZHAEV, L. V.; Dr.biol., Prof. - Inst, of Developm. Biol., Acad, of Sci. of the USSR, Vavilov 



St. 26, MOSCOW 1 17334, USSR 

 POLGE, C; Dr. - A.R.C. Inst, of Anim. Physiol., Anim. Res. Station, 307 Huntingdon Rd., 



CAMBRIDGE CB3 OJQ, England 

 a Factors influencing motility, morphology and fertilizing capacity of spermatozoa during storage 



90 



