Publications

protein profile of the myelin membrane of the fruit bat rousettus aegyptiacus.	integral membrane protein composition of the myelin membrane from normal and vitamin b12-deficient fruit bats has been compared with that of the rat. purified myelin from the fruit bat shows only one basic protein which co-migrates with the large basic protein of the rat, and thus presents a pattern similar to that of the guinea pig. no gross differences were seen in the protein patterns from normal and vitamin b12-deficient animals. bats between 4-10 days and 10-20 days post partum were also in ...	1983	6661904
effect of the zeitgeber pattern on the resynchronization behaviour of dark-active mammals.	the activity of 12 egyptian fruit bats, rousettus aegyptiacus, was synchronized by 24-h illumination cycles varying in light/dark (l/d) ratios, and the effect of these ratios on the resynchronization following phase shifts of the zeitgeber signal (+8 h and -8 h) was observed. the resynchronization time in l/d:16/8 was the same as that in l/d:12/12, but that in l/d:8/16 was significantly increased. after an advance-shift, some of the bats (2 of 6 in l/d:16/8 and 6 of 12 in l/d:8/16) resynchronize ...	1982	7141748
[primary structure of the hemoglobins from the egyptian fruit bat (rousettus aegyptiacus, chiroptera)].	the hemoglobin of the egyptian fruit bat (rousettus aegyptiacus) has only one component. the alpha and beta chains were separated by chromatography on cm-52 cellulose. the complete primary structures of both chains were established by automatic edman degradation of the chains and the tryptic peptides. the alignment was done by homology with alpha and beta chains of adult human hemoglobin. a comparison of these two hemoglobins shows an exchange of 14 amino acid residues in the alpha chains and of ...	1982	7141404
fatty acid composition of synaptosomes from normal and cobalamin deficient bat brain.	1. synaptosomes were prepared from the brain of cobalamin deficient and cobalamin supplemented fruit bats (rousettus aegyptiacus) by a floatation method on a discontinuous sucrose gradient. 2. there were no significant differences in fatty acid composition between the deficient and supplemented bats. 3. the odd chain fatty acid 15:0 amounted to 0.2% of the total fatty acids in both groups. 4. we conclude that the fatty acids of synaptosomal lipids are not a factor in the development of neural dy ...	1982	7172626
lipid composition of the brain in the vitamin b12-deficient fruit bat (rousettus aegyptiacus) with neurological impairment.		1981	7276938
zeitgeber-schedule dependent resynchronization of circadian rhythms in nocturnal mammals (primates and chiroptera).	changing the l:d time ratio of an entraining light-dark regime leads to characteristic alterations of the resynchronization behaviour of the circadian activity rhythms in night monkeys (aotus trivirgatus) and african fruit bats (rousettus aegyptiacus) after 8 h advance and delay shifts of the ld-zeitgeber. reduced speed of re-entrainment and occurrence of antidromic resynchronization point to a lower zeitgeber strength of 24-h ld-cycles with a prolonged d-phase.	1981	7297663
the myoglobin of the fruit-bat (rousettus aegyptiacus).	the myoglobin of the fruit-bat (rousettus aegyptiacus) has been investigated. it has 153 amino acid residues. when the possible therian ancestral myoglobin is taken into consideration, the myoglobin of the fruit-bat resembles most closely that of the hedgehog.	1977	861250
structure of the penis in the fruit bat rousettus aegyptiacus (megachiroptera).		1976	1003048
the feeding pattern of the fruit bat rousettus aegyptiacus in captivity.	an electrical apparatus was designed to record continuously the feeding activity of either a colony of 30 fruit bats (rousettus aegyptiacus) or single bats in captivity. the endogenous feeding activity rhythm was synchronized by change in the external light-dark cycle. during june to august (winter), the bats consumed an average of 96 g sliced banana, equal to 76 g wet weight/100 g body weight per 24 hours or 15 g dry weight/100 g body weight per 24 hours. the feeding period began shortly after ...	1976	1019753
lunarperiodic variation of the phase-angle difference in nocturnal animals under natural zeitgeber-conditions near the equator.	several months' studies under natural illumination conditions in the vicinity of the equator show that night monkeys (aotus trivirgatus), and leaf-nosed bats (artibeus lituratus) exhibit species-specific lunarperiodic changes of the phase position of their activity rhythm to the zeitgeber rhythm (figures 1-3). these changes are closely to nightly illumination conditions. in aotus the phase-angle differences (p.a.ds) of the onset and end of the activity phase, and in artibeus the p.a.ds of the mi ...	1976	829232
vitamin b12 metabolism in the fruit bat (rousettus aegyptiacus). the induction of vitamin b12 deficiency and its effect on folate levels.	1. vitamin b12 metabolism was studied in bats of the species rousettus aegyptiacus, which live on an all-fruit diet in the wild. 2. there was a wide range in values for the serum vitamin b12 concentration of newly captured bats, but bats captured in the early spring had significantly higher mean serum vitamin b12 levels than bats captured in the early autumn. 3. there was an exponential decrease in serum vitamin b12 concentration with time in captivity for bats fed on a vitamin b12-deficient, al ...	1975	1201264
	1. several months' measurements of activity under natural illumination conditions near the equator (colombia) show that changes in night illumination over the lunar cycle influence the activity of nocturnal mammals in various ways. 2. night monkeys (aotus trivirgatus) largely limit their activity to dusk and dawn during the new moon period. during the full-moon period they are very active throughout the night (fig. 5). in the case of the neotropical phyllostomatid batartibeus lituratus, moonligh ...	1974	28308624
[the innervation of the metacarpal vein and artery of the wing of megachiroptera (rousettus aegyptiacus and pteropus giganteus)].		1971	5157432
[ionic analysis of the serum of bats (rousettus aegyptiacus) and the elaboration of a physiologic solution (c.s.i.) for the perfusion of digital alar vein].		1969	5394037
[cholinergic innervation of digital wing vein and artery of bats (rousettus aegyptiacus)].		1969	5394034
the breeding biology of the fruit bat rousettus aegyptiacus e. geoffroy living at o degrees 22's.		1968	4386699