jeanflop/post-ocr-correction huggingface dataset:
Iron remains under this ferrous state in the solution and compounds are easily destroyed. Three acids display complexing properties during chemical release and among them oxalic and citric solutions show ferric iron and more stable complexes. Geology Occurrence of an Ashgillian Limestone in the Eastern Armorican Massif; its Bearing on the Age of the Late Ordovician Glacio-Marine Deposits, by Marcel Weyant, Francis Dore, Jean Le Gall and Jacques Poncet. 1147 The presence of the Ashgillian stage in the Northeastern Armorican Massif is ascertained for the first time on conodont evidence. Conodonts are recovered from the "Calcaire des Vaux", an exceedingly
Conodonts are recovered from the "Calcaire des Vaux", an exceedingly rare remnant of the Ordovician carbonate sedimentation in this area. An identical limestone, bearing almost the same fauna, occurs as numerous boulders within the glacio-marine deposits (Tillite de Feuguerolles), hitherto considered to be of Caradocian age. This finding provides a better understanding of the relationships with some other segments of the Hercynian belt. Tectonics Tectonic Evolution in the Western Part of the Domaine "Centre-Armoricain" (Brittany) during Devonian and Carboniferous Periods, by Jean-René Darboux, Michel Gravelle, Annik Pelhate and Joel Rolet... 1151 Comparative structural studies in Devonian and Carboniferous terrains of
1151 Comparative structural studies in Devonian and Carboniferous terrains of the Rade de Brest area, "Monts d'Arrée" hills and western part of the Chateaulin basin, emphasize the importance of the previscian tectonic activity (Bretonic phase?), involving recumbent folding, shearing and low grade metamorphism. The Tectogenetic Interest of the Theux Window (Ardenne, Belgium), by Claude Klein 1155 The placing of the "Vesdre nappe" was accompanied by a complete overturning of the carboniferous formations of the Theux window. Later, the roots of the overthrust sheet were further tectonically along the Jeroumont-Jehanster fault. Finally, submeridian late-variscan shearing cut up the Stavelot massif and
Finally, submeridian late-variscan shearing cut up the Stavelot massif and its Devonian coverings, between Tiege and Surles; as between La Reid and Hodbomont. Paleontology Anatomy and Kindred of Tabulata Assignable to Ischyrospongia (Sponges), by Henri Termier and Geneviève Termier 1159 Tabulata are near neighbours of Sclerospongia and of Merlia as well as of fossil Pharetronida and Permosphincta. Like the latter, the walls may or may not be porous, and passing terms do exist between these two types. Intercalicular perforation (prosopylae) appears in parallel series. The living part was turned outside (Coenospongia) but between the external floors, cavities took up the
(Coenospongia) but between the external floors, cavities took up the position of Demospongia subcortical cavities and of Merlia crypts. Deeper, nest-like expansions are sometimes observed. Collective astrorhizae are not frequent (rhodorhizae) but their function was assumed by radiating furrows and by hemmed oscules restricted to each tube. Algology Biological and Chemical Study of Asparagopsis Armata and of Falkenbergia Rufolanosa (Rhodophyceae Bonnemaisoniales), by Louis Codomier, Yves Bruneau, Georges Combaut and Jean Testé 1163 Asparagopsis armata Harv. and its tetrasporophyte Falkenbergia rufolanosa (Harv.) Schmitz show exceptional auto-conservation properties when ground and in aqueous medium. The presence in these two algae, in addition
aqueous medium. The presence in these two algae, in addition to bromoform, of seven chlorinated and brominated derivatives, has been clearly established. Asparagopsis armata grows vegetatively from isolated and cultivated harpoons. The physicochemical and developing conditions of the species have been studied in situ and in cultures. Biology On Filamentous Boring Algae in the Shell of Gryphus vitreus (Born) (Brachiopoda, Terebratulidae) of the Lower Part of the Mediterranean Shelf-Edge, by Gaston Fredj and Claude Falconetti The brachiopod Gryphus vitreus is quite frequently found in abundance on the lower part of the western Mediterranean shelf-edge. More than 75 percent of the
the western Mediterranean shelf-edge. More than 75 percent of the specimens collected between 140 and 220 m. are green-colored. Microscopical observations and spectrophotometric analysis of pigments show that the primary layer of the shell is occupied by boring Algae of the genus Ostreobium. The presence of these green Algae from brachiopods and at these depths is reported for the first time. Plant Embryology The "Initials of the Root's Bark" Meristematic Area with Different Origins, by Andre Lebegue... In vivo, the development of the meristematic area known as "the initials of the root's bark" appears often to be at variance with
the root's bark" appears often to be at variance with the Law of destination. In vitro, the hypocotyl can supply and replace the hypophysic areas which have been cut out. One section sufficiently high allows, keeping the potential of the lower area intact, the liberation of the latent constructive potential of the upper area, and also permits one to obtain a rooted stump, in addition to a section with a normal root. Zoology Interspecific Hybridization and Disc-Electrophoresis of Hemolymph Proteins in the Genus Androctonus (Scorpionida, Buthidae), by Max Goyffon, Max Vachon and Gilles Le Pape The disc-electrophoresis of hemolymph proteins
Vachon and Gilles Le Pape The disc-electrophoresis of hemolymph proteins of a specimen issued from an interspecific coupling in the genus Androctonus (Scorpionida, Buthidae) showed that there was hybridization and not gynogenesis, and that the mobile fractions of hemocyanin were transmitted as codominant factors. Protistology The Gametes of the Gregarine Grebnickiella gracilis (Grebnecki) (Sporozoaires) Parasite of Scolopendra cingulata L.; First Ultrastructural Data, by Sylvain Molon-Noblot Among all the species studied, the Gregarine Grebnickiella gracilis is characterized by the strongest anisogamy. These first ultrastructural data reveal that the female gamete possesses an important cytoplasm -rich in lipids. The male gamete consisting
an important cytoplasm -rich in lipids. The male gamete consisting only of a nucleus with a condensed chromatin, a flagellum and a single mitochondrion, is very similar to the Coccidian microgamete. Neuroanatomy Barrels in the Somato-Sensory Cortex of Mice: Effects of Lesions or Functional Deprivation of Vibrissae at Birth, by Roger Verley and Herbert Axelrad. In newborn Mice, the mystacial pads of the upper lips were submitted to different destructive or functionally reducing procedures. The effects on the barrels of the somato-sensory cortex were judged in mature animals and classified into three categories: 1. the barrels were present and normal;
into three categories: 1. the barrels were present and normal; 2. the cortex was devoid of barrel structures; 3. the barrels were disorganized. Only procedures which involved peripheral lesions, and not those which reduced only the functional level, produced effects as deep as absence or disorganization of the barrels. Histology Histological Studies of the Gonads of a Mutant with Delay in Action and Causing Sterility in Drosophila melanogaster Meig., by Ginette Lauge, Benoit Sauphanor and Louise Ranchainandrianina The gonads of the sterile flies, which appear in the offspring of homozygous females X87 of Drosophila melanogaster, are agametic. Their structure looks
females X87 of Drosophila melanogaster, are agametic. Their structure looks like that of the agametic gonads obtained in the same species after irradiation of polar cells. They do not look like the gonads of the grandchildless mutant of Drosophila subobscura. Physiology Hemodynamic Responses of Trout (Salmo gairdneri) Gill to Adenosine; Study with Isolated Perfused Head, by Didier Colin and Claude Leray The adenosine effect is antagonistic to the noradrenaline effect: systemic flow is reduced even for low concentrations (10-7 M), while venous flow is lightly increased. All these effects are inhibited by theophylline. Results obtained with different nucleosides, bases and
inhibited by theophylline. Results obtained with different nucleosides, bases and some adenosine derivatives are given. The physiological implication of the hemodynamic control of Trout gill by adenosine is evoked. Insect Physiology Development and Differentiation of the Oocyte and Folicle of Locusta migratoria migratoroides R. and F. (Orthoptera), by Francine Goltzene Biometry and ultrastructure allow us to distinguish four periods in the oogenesis of Locusta migratoria migratoroides: preleptotrophic period, two vitellogenetic periods and the production of the oocyte membranes. Neurophysiology Role of Granule Cells in the Establishment and Distribution of Synapses Between Climbing Fibers and Cerebellar Purkinje Cells in the Rat,
Between Climbing Fibers and Cerebellar Purkinje Cells in the Rat, by Nicole Delhaye-Bouchaud and Francis Crepel The study of Rats irradiated during development shows that the establishment of the one-to-one relationship in the adult between climbing fibers and Purkinje cells which follows the immature multiply innervated stage mainly depends on granule cells formed before day 8. Climbing fibers ending upon a multiply innervated cell are intermingled on the same dendritic segments. Psychophysiology Ontogenetic Analysis of Theta Rhythm during Paradoxical Sleep in the Rat, by Albert Cavoy, Paul Monmaur and Jean Delacour In the Rat, an ontogenetic study of theta rhythm
Delacour In the Rat, an ontogenetic study of theta rhythm during paradoxical sleep shows a clear evolution between the 14th and the 30th postnatal day. During this period, its mean frequency increases from 5 to 7 cycles per second, and its spectrum shows significant changes. These parameters (mean frequency and spectral components) of the theta rhythm could be a useful index of brain maturation in the Rat. Endocrinology Insulin and Glucagon Release by Perifused Newborn Rat Pancreas Effect of Vasoactive Intestinal Peptide (VIP), by Nicole Vauclin, Christian Gespach, Dominique Bataille, Claire Jarrousse and Gabriel Rosselin A method is described for
Claire Jarrousse and Gabriel Rosselin A method is described for perifusion of the splenic part of the pancreas from 48-64 hour-old Rat. In different basal conditions, the secretion of insulin and glucagon is stable and reproducible for 90 mn. The addition of the vasoactive intestinal peptide (VIP) to these perifusion media, at a concentration as low as 2 ng/ml, determines a remarkable increase of insulin and of glucagon secretion. These results suggest the possibility of a VIP action in the physiology of endocrine pancreas. Biology Inhibitory Effect of Ecdysterone on Regeneration by the Crab Carcinus maenas (L.), by François Bazin
Regeneration by the Crab Carcinus maenas (L.), by François Bazin Crabs with 5-day-old regenerating stumps, injected with two successive doses (10 μg/g) of ecdysterone, failed to regenerate or formed small abnormal regenerates, when they molted more quickly than uninjected controls. These abnormal regenerates are built with a well differentiated apical part and a basal part covered by folded cuticle. 9-day-old stumps of Crabs, killed 2 days after the second hormonal injection show: — precocious deposition of new cuticle: — giant lytic vacuoles accumulation; — early appearance of cells with "Op-art-bodies" beneath the epithelium. The interrelationship between cell differentiation, cuticular secretion
beneath the epithelium. The interrelationship between cell differentiation, cuticular secretion and hormonal rate in abnormal regenerates formation are discussed. Cellular Biology Ultrastructural Study of Meiosis in C., CL and M3 C Strains, by Isabelle Lacorre-Arescandino In Physarum polycephalum (Myxomycetes), a comparative ultrastructural study of sporulation showed only a slight difference between strains C, and CL where plasmodia and amoebae have the same ploidy level, and polyploid strains M3C VI and M3C VII, where plasmodia have twice the ploidy level of amoebae: numerous multinucleate spores were found in strains C, and CL. Among other conditions, the observation of synaptonemal complexes provides
CL. Among other conditions, the observation of synaptonemal complexes provides some evidence that meiosis occurs in strains C, and CL during sporulation. Population Dynamics Survival Curve in the Common House Fly Musca domestica L. analyzed by Teissier's Law (1934) on Senescence, by Hagime Inagaki The fitness of Teissier's law to the female survival curve has been shown to be fairly strict and the curve is split into two senescent stages. These stages tally with two periods of variation in percentage of wing retention and in mitochondrial Mg-activated ATPase activity. Pathological Anatomy Odontogenesis as a Model of Organogenesis in Teratomas (2).
Anatomy Odontogenesis as a Model of Organogenesis in Teratomas (2). Crown Formation, by Philippe David and Jean A. Gaillard Using the technique of 3 dimensional reconstruction, the various steps involved in the formation and growth of the crown of a tooth primordium observed in a complex ovarian teratoma have been compared with that occurring in dermoid cysts and in the normal dental system. Inside dermoid cysts, the characteristic form of the tooth is established during the production of the dentine and enamel and the process is often similar to that occurring during normal tooth development. In teratomas, however, organogenesis and
occurring during normal tooth development. In teratomas, however, organogenesis and morphogenesis take place within a system undergoing multidirectional development. They are dissociated during both the embryonic stage and that of a structural formation. Morphogenesis is the most disturbed and the role of the environment is presumably therefore very important. Bacteriology Correlation between the Intensity of Spontaneous Bacteriolysis and Bacteriological Pollution in Surface Water, by Chantal Finance and Louis Schwartzbrod A study on the determination of the intensity of spontaneous bacteriolysis in different samples of water from the hydrographic basin of Lorraine, has led us to propose a new way of
Lorraine, has led us to propose a new way of expressing the spontaneous bacteriolytic power: PBSG. Its utilization has permitted us to establish correlations between the intensity of spontaneous bacteriolytic power and the degree of bacteriological pollution found in different places in the two rivers, the Moselle and the Meurthe. A very strong correlation has been shown between the rate of global spontaneous bacteriolysis after 6 days and the number of coliforms in the water. Virology In vitro Transformation of Hamster Brain Cells by Polyoma Virus, by Catherine Pagis-de Micco, Marie-France Tripier, Jacques Hassoun and Maurice Toga A cell line
Marie-France Tripier, Jacques Hassoun and Maurice Toga A cell line called HCxPy was obtained in vitro by transformation of dissociated Hamster brain cell cultures by polyoma virus. The first foci of transformed cells became evident 90 to 120 days after viral infection. This cell line is now at the 46th passage. The cells appear tumorigenic for Hamsters after subcutaneous and intracerebral injection. They carry the polyoma virus T and cell surface antigens. Good evidence for astrocytic differentiation can be found by morphological examination of the tumours and of the cultured cells. Immunology Does Virus-Induced Diabetes of the Mouse Depend on
cells. Immunology Does Virus-Induced Diabetes of the Mouse Depend on Immune Reaction ? by Franck Klaus Jansen, Horst Münsterling and Kurt Schmidt Normal DBA2 mice become highly diabetic after infection with the EMC virus. But 500 R X-irradiation before infection inhibits the increase of mean blood glucose levels thus indicating the participation of immune reactions in the appearance of diabetes. Immunity Reactions to Experimental Bilharziosis in the Rat, by Jean Tribouley, Jeanne Tribouley-Duret and Martine Appriou Partial immunity to Schistosoma mansoni in the Rat can be obtained by injection of a bilharzian antigen together with Freund's complete adjuvant. The results
a bilharzian antigen together with Freund's complete adjuvant. The results are the same no matter what form of the parasite is used (infecting cercariae or adult). This immunity is the result of both specific and non-specific mechanisms, as is proved by the fact that a lesser but still quite clear degree of resistance to infestation can be obtained by injection of Freund's adjuvant alone. Experimental Pathology Attempt at Production, in the Rat, of Hepatitis with Cirrhotic Evolution, by Amino-Steroid: Holaphyllaminol or Amino-3-p Hydroxy-20-Pregnene-5, by Vu Quang Huren, Jeannine Choppin, Andree Desplaces and Georges Roux Holaphyllaminol, or Amino-3-p-Hydroxy-20-p Pregnen-5, was administered
Desplaces and Georges Roux Holaphyllaminol, or Amino-3-p-Hydroxy-20-p Pregnen-5, was administered by gastric tube to male Wistar rats at doses of 50, 100 and 200 mg/kg 24 h respectively, during 10, 20, 40 and 80 days. This substance provokes hepatic lesions beginning at the periportal region, the characteristics of which are a cholestasis, a canalicular proliferation and a fibrosis. The interest of these alterations lies in the fact that they present the same features as certain human chronic hepatitis; their progression, a function of the dose of the toxin and the duration of treatment, may make possible the realization of a
duration of treatment, may make possible the realization of a model of experimental chronic hepatitis. Dominique Hadia, Philippe Lagny and Josette Taugourdeau 1247 The main parameters which are at the present time related to sedimentary sulphide deposits are well represented in the mangrove swamp landscape. All the lithologic, petrographic, mineralogic and palynologic data regarding the Treves Pb-Zn ore deposits and their host-rocks agree with a genesis in such an area. Petrography Evidence of Tholeiitic Pigeonite Series in the Superior Precambrian of the Central African Republic. Relation with Tectonics, by Jean-Louis Poidevin 1251 Study of Dolerites of the Central African Republic.
Poidevin 1251 Study of Dolerites of the Central African Republic. Attribution to the tholeiitic pigeonite series. Age, relation with geodynamics, Chronogeology Radiometric Dating of a Shoreline at + 2.5 m Near Aghia Roumeli, Crete, Greece, by Paolo Probozzi and Jean Thommeret 1255 The sea level investigated is lower and slightly older (2,400 ± 70 B.P.) than other emerged shorelines observed in the same area. Superimposed traces of a number of former sea levels can be identified on this tectonically unstable coast. Geology Preliminary Note on the Ring Complex, Subvolcanic Massif Abontorok (Air-Niger), by Jean-Paul Karche and Christian Moreau 1259 The
Abontorok (Air-Niger), by Jean-Paul Karche and Christian Moreau 1259 The small Abontorok ring complex in the center of Air, made up, for the greater part, of anorthosites intersected by thin granites and syenites ring-dykes, has a "funnel-structure". A quasi-continuous evolution of textural and mineralogical characters of the anorthosites appears from inside to outside. The presence of a central endogenetic breccia shows its setting at a low depth. Tectonics The Ardennotype, by Claude Klein 1263 Like the Armoricanotype, the ardennotype shows supple reactions of a prevariscan basement which was imperfectly hardened. Stratigraphy Palynology confirms Bartonian Existence in the Eocene Campbon Basin
Stratigraphy Palynology confirms Bartonian Existence in the Eocene Campbon Basin (Loire-Atlantique), by Marie-Françoise Ollivier-Pierre 1267 The presence of Aglaoreidia cyclops in the attapulgite clays, which overlie the Upper Lutetian sandy and calcareous sediments, allows us to date these clays as Upper Bartonian, Hydrogeology Contribution of aircraft thermal infrared remote sensing to a knowledge of superficial hydrology in estuaries (Charente, Seudre rivers and Aiguillon Bay), by Claude Dechambray, Louis Pontier, Francis Sirou and Jean Vouve 1269 Superficial hydrology analysis of estuaries can be completely recreated from infrared thermographic records. The water transfers (mesohaline and salt water), and the wave fronts between
transfers (mesohaline and salt water), and the wave fronts between these two environments are disclosed and observed during tides. The birth of different complex mixed zones of convective cells linked with submarine-terrestrial topographies is also brought out. The Geothermometer Grounded on the Cations Over Silicon Ratios of Thermal Water and Deep Aquifer, by Henri Schoeller and Marc Schoeller 1273 The geothermometer established by considering the cations over silicon ratios of thermal water and deep aquifer is improved by adding the effects of the chlorine content of the deep aquifer and of the cations and the silicon contributed by atmospheric water
of the cations and the silicon contributed by atmospheric water feeding into the hydrothermal system. Paleontology New Theridomyinae from the Paleogene of Western Europe, by Monique Vianey-Liaud 1277 Three new Theridomyinae (Oligocene Rodentia) are described (Theridomys perrealensis now sp., Archaeomys intermedius nov. sp, A. laurillardi helveticus nov. subsp.). A diagram shows the phyletic relationships between these species and the other Theridomyidae. Plant Physiology Variability of the Apparent Cyanide-Resistance in Arum Mitochondria, by Michele Chauveau 1281 In plant mitochondria with two electron transfer pathways (cytochrome and alternative pathways) correct determination of apparent cyanide resistance can be carried out only if the
apparent cyanide resistance can be carried out only if the rates of electron transfer are maximal. Failure to meet this requirement explains some conflicting results reported in the literature on Arum maculatum mitochondria. Synthesis Characterisation of Herbaceous Plant Roots from Representative Samples of Root Systems, by Claude Maertens and Jean-Louis Chopart 1285 The characterisation of herbaceous plant roots is realized by classic estimators of population: mean, variance, sum of squares of deviations, of diameters and by root length. These data are obtained from global measure of weight, length and "diameter area" of root samples and are representative of root systems.
area" of root samples and are representative of root systems. Genetics The Composition of the Essential Oil of Thymus vulgaris L. (Lamiaceae): Mode of Hereditary Transmission of Three Terpenes (the Thymol, the Carvacrol and the Linalool), by Philippe Velut 1289 Two loci, genetically independent, have been noted: the Ph locus and the Li locus. At the Ph locus, two genes decide the nature of the phenol: the Ph, dominant allele controls the accumulation of carvacrol, the Ph, recessive allele those of thymol. This couple of alleles is hypostatic on the Li allele which controls the accumulation of linalool, while the
Li allele which controls the accumulation of linalool, while the Li, recessive allele permits the exteriorization of the former. Physiology Demonstration of Specific Receptors for Angiotensin III in Rat Adrenals, by Marie-Aude Devynck, Marie-Gabriel Le Pernollet, Philip Geoffrey Matthews and Philippe Meyer 1293 Distinct and specific binding sites for LH-angiotensin II (A II) and LH-angiotensin III (A III) have been demonstrated in Rat adrenal gland preparations. A III binding sites have the highest affinity (Kd 1-2 x 10-10M) for the 2-8 heptapeptide. This suggests the possibility of a separate and distinct physiological role for the 2-8 heptapeptide, mediated via such