Hemodynamic changes in rats without adrenal medula submitted to hypovolemic shock

Resumen La extirpacion de la medula suprarrenal no provoca alteraciones de la hemodinamia en ratas estudiadas en condiciones basales, mientras que durante el shock hipovolemico las ratas meduloprivas presentan un volumen minuto cardiaco menor, y un aumento de la presion arterial media y de la resistencia periferica total, en relacion a los testigos normales sometidos al mismo tipo de shock.

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This work has been partially supported with a grant from the Consejo Nacional de Investigaciones Cientificas y Técnicas. The isotopes were obtained through the Comisión Nacional de Energía Atomica.

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Established Investigator. Carrera del Investigador Científico del Consejo Nacional de Investigaciones Científicas y Técnicas de la República Argentina.     

Genetic control over the duration of G1 phase

or fi y G₁ , .     

The “day of Brahman” in the work of Āryabhata

Summary In the astronomical treatise ryabhatya of ryabhata several verses are interpolated, namely all those verses in which either Brahman was mentioned or extremely large periods were introduced. The interpolator was known to AlBrn as ryabhata of Kusumapura, who belongs to the school of the elder ryabhata. The aim of the interpolator was to bring the teaching of the elder ryabhata into accordance with the revelation of Svayambh. Svayambh is another name for Brahm.     

Unique occurrence of fenchol in the animal kingdom

Summary (–)--Fenchol, a compound occurring in plants but not heretofore reported to occur in an animal product, was isolated from volatiles released by adult male Mediterranean fruit flies,Ceratitis capitata Wiedemann, with the male's previously identified sex pheromones. It neither attracts females nor synergizes the pheromones, and its function remains unknown.The editors do not hold themselves responsible for the opinions expressed in the authors' brief reports. — Les auteurs sont seuls responsables des opinions exprimées dans ces brèves communications. — Für die Kurzmitteilungen ist ausschliesslich der Autor verantwortlich.—Per le brevi comunicazioni è responsabile solo l'autore. — . — Solo los autores son responsables de las opiniones expresadas en estas communicationes breves.Mention of a proprietary product in this paper does not constitute a recommendation or an endorsement of the product by the US Department of Agriculture.Acknowledgments. We thank C. Harding for assistance with extractions and fractionations, R.M. Waters for spectral analyses, M.S. Fujimoto and H. Higa for collecting the volatiles and conducting laboratory and cage bioassays, and T. Urago and S. Nakagawa for conducting the field tests.     

Separation of rat liver mitochondrial amine oxidases

.     

Studies on rII region of T2L phage

rII T2L , rII T4B. rII T2L rII T4B. T2L rII T4B.     

Contribution to the method for approximation of X-ray diffraction line profile

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Neurogenic responses of resistance and capacitance vessels

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The stimulating action of gastrin pentapeptide and histamine on adenyl cyclase activity in rat stomach

, 3',5'-, in vitro . , , 3',5'- HCl .     

Inhibition of sodium transport in frog skin by cardiac glycosides of different molecular structure

p 19-OM no- . ; — .     

Cellular antigens in myxo- and paramyxoviruses as revealed by immunodiffusion methods

, , . , .     

The mechanism of blood vessel permeability derangement under the influence of histamine,serotonin and bradykinin

, , , , 10^–2-10^–3M NaCN . (, ). .     

Polyribosome patterns in EMC-virus infected Krebs-2 cells and cell extracts

. -2, , . ¹⁴- in vitro ( ) , in vivo, . .     

The syntheses of axillarin and its related compounds

Zusammenfassung Axillarin (5, 7, 3, 4-Tetrahydroxy-3,6-dimethoxyflavon). 5,3,4-Trihydroxy-3,6,7-trimethoxyflavon und 5,7,3,4-Tetrahydroxy-3,8-dimethoxyflavon wurden synthetisiert.     

The ‘Spitzenkörper’, centre of the reducing power in the growing hyphal apices of two septomycetous fungi

Summary Redox dyes, such as methylene blue and neutral red, are stably reduced to their leucobase in the Spritzenkörper of the growing hyphal tips ofNeurospora crassa andMonilia fructigena.We acknowledge the support of the Fonds National Suisse de la Recherche Scientifique and thank both Mrs Ton-That for her electron micrograph and Miss E. Herz for her technical help.     

Discovery of toxicogenicStachybotrys chartarum strains in Finland

Stachybotrys chartarum, , , .S. chartarum .S. chartarum .

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The authors wish to thank the National Research Councils for Medical Sciences and for Agriculture and Forestry for supporting the work with a grant.     

(−)-Δ8-tetrahydrocannabinol: Two novel in vitro metabolites

Zusammenfassung (–)-⁸-Tetrahydrocannabinol ist einer der Aktivstoffe in Marihuana (Cannabis sativa L.). Inkubation dieser Verbindung mit der überstehenden Zentrifugationsfraktion (9000g) aus männlicher Hundeleber ergab zwei Hauptmetaboliten, welche durch Massenspektrometrie und Kernresonanzspektroskopie identifiziert wurden. Den beiden Verbindungen werden die Strukturen des 1-Hydroxy-⁸-tetrahydrocannabinols und des 3-Hydroxy-⁸-tetrahydrocannabinols zugeordnet.     

Chromosomes and giemsa-bands of the Idaho spotted ground squirrel,Spermophilus brunneus (Howell)

-Spermophilus brunneus . , 13 18 ,S. brunneus S. townsendii mollis (2n=38) , , ; ;S. brunneus . S. brunneus , Spermophilus.

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Supported by National Science Foundation Grants No. GB32114X and No. GB 29131X, and the Sprague Foundation. We thankD. Pozin for technical assistance.     

Formation and decay of virus-specific polysomes in vitro

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Zur Synthese des Batrachotoxinins: Synthese von 3β-Acetoxy-16β, 20β-dihydroxy-4′-methyl-18-nor-5β, 14β-pregnano[13,14-f]hexahydro-1′,4'-oxazepin-3′-on(20a)

Summary The synthesis of 3-acetoxy-16, 20-dihydroxy-4-methyl-18-nor-5, 14-pregnano[13,14-f]hexahydro-1, 4-oxazepin-3-one (20a) is described.