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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 340 (1965), S. 325-328 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Durch Umsetzung von VCl4 mit sek. und tert. Aminen wurden weitere Amin: V = 2:1-Derivate des Vanadin(IV)-chlorides erhalten, deren mögliche Strukturen diskutiert werden.
    Notes: Amino-derivatives of vanadium(IV) are prepared by the action of vanadium(IV) chloride with some secondary and tertiary amines, their properties studied and probable structures discussed. Analytical results reveal that two molecules of the amine are attached to one mole of vanadium(IV) chloride.The study of the amino-derivatives of vanadium(IV) chloride has been continued using the same methods of investigation as reported in Part I1). These compounds are very similar to the compounds formed with primary amines given in the previous work.The present work deals with the study of the preparation and properties of the compounds of vanadium tetrachloride with secondary and tertiary amines in non-aqueous media.
    Additional Material: 1 Tab.
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  • 2
    ISSN: 1432-1955
    Keywords: Ceylonocotyle scoliocoelium ; Neurosecretion ; Trematoda ; Histology ; Cytochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Adults ofCeylonocotyle scoliocoelium were subjected to histochemical and histocytological tests. Neurons were localized in the cerebral ganglia, commissure, around the oesophagus, genital atrium, and oral and ventral suckers with the help of thionin and silver impregnation methods. The localization of the enzymes acetylcholinesterase and butyrylcholinesterase was also observed on these neurons. Only the A-type of neurosecretory cells was identified in the cerebral ganglia, commissure, around the oesophagus, and genital atrium using aldehyde-fuchsin, chrome haematoxylin phloxin, performic acid-Victoria blue (PAVB), and performic acid-Alcian blue (PAAB) techniques. However, the neurons of the oral and ventral suckers always responded negatively to PAVB and PAAB techniques. The possible functional significance of these neurons is discussed.
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  • 3
    ISSN: 1573-0832
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Host range of Achlya prolifera (Nees) De Bary has been extended to Cotisa fasciatus, Colisa lalia, Puntius sophore, Notopterus chitala, and Anabas testudineus by conducting artificial inoculation experiments under controlled laboratory conditions.
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  • 4
    ISSN: 1573-0832
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The present paper deals with the histopathological studies on rust galls ofRuellia prostrata caused byPuccinia ruelliae. The gall formation in present case is the result of both hyperplastic and hypertrophic activities of the infected cells. Formation of independent vascular supplies in galled regions is a feature of general occurrence.
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  • 5
    ISSN: 1573-0832
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract In the present investigations the potential fungicidal ability of malachite green oxalate has been tested in vitro on four fish-pathogenic isolates of Saprolegniaceous fungi viz.,Saprolegnia ferax (Gruith) Thuret,Achlya flagellata Coker,Aphanomyces laevis De Bary andIsoachlya anisospora var.indica Saxena and Bhargava and the lowest concentration having fungicidal ability has been found to be 0.5 ppm. Tolerance tests have also been conducted usingPuntius sophore, Colisa lalia, Anabas testudineus andCatla catla as test fishes. Also the applicability of the lowest fungicidal concentration of this chemical (i.e. 0.5 ppm) in sustained culturing of the adult individuals ofCatla catla, a major food fish, against the mycotic infection, has been tested.
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Flow, turbulence and combustion 14 (1965), S. 253-267 
    ISSN: 1573-1987
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Summary Theoretical calculations are carried out for the steady laminar incompressible flow of an ordinary viscous fluid in a curved annulus. At first the flow parameters are evaluated for the general case and then a particular example is solved numerically. The graphical representations of the flowline in the plane of symmetry and the projection of the stream-lines on a normal section are given. Only the case of large radius of curvature of the annulus is considered; more precisely this means that the ratio of the radius of the outer curved pipe to that of the circle in which the common axis of the two curved pipes is coiled is sufficiently small.
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  • 7
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 8
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Summary Experiments for the measurement of electroosmotic pressure, electro-osmotic velocity and streaming potential in the case of kaolinite-water system, have been described and the data analysed in the light of non-equilibrium thermodynamics.Onsagers relations have been shown to be valid. Attempt has been made to explore the domain of validity of linear phenomenological relations. Analysis of the data has revealed that cross coefficients in the phenomenological equation for water flux, remain constant for a longer range in comparison to the pure coefficients. Consequently nonlinearity in the phenomenological equation for water fluxJ arises in the first instance due to non-constancy of the pure coefficient i.e. hydraulic conductivity. The transport equationJ=L 11ΔP+L 12Δϕ+L 111(ΔP)2 whereΔP andΔϕ represent the pressure difference and potential difference respectively andL 11,L 12 andL 111 are the phenomenological coefficients, has been shown to represent the water flux data in the non-linear region. Opportunity has also been utilised to study the dependence of phenomenological coefficients on temperature.
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  • 9
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Mycopathologia 64 (1978), S. 49-51 
    ISSN: 1573-0832
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract By the present investigations the host range of Achlya orion Coker and Couch has been extended to, Puntius sophore, Puntius ticto, Puntius conchonius, Puntius sarana, Chanda ranga, Channa marulius, Channa punctatus, Notopterus notopterus, Labeo rohita, Colisa lalia and Anabas testudineus; 11 freshwater fishes. The ability of certain Saprolegniaceous fungi to parasitise fish has been reported by several investigators viz., Clinton (2), Tiffney (21, 22), Tiffney & Wolf (23), Gopalakrishnan (3), Vishniac & Nigrelli (24), Scott & O'Bier (7), Bhargava et al (1) and Srivastava & Srivastava (10.20) etc. These fungi are known to attack fish eggs, fry, fingerling and adult fishes and as a general rule the fungal infection starts when the host gets injured either mechanically or as result of infections other than fungal which often result in epidemics causing 100% mortality of the infected hosts (Scott & O'Bier 7). During the course of an investigation on fungi associated with fish diseases, author observed the severe fungal infections of Colisa fasciatus (Bl.) and Anabas testudineus (Bl.) in the waters of Ramgarh Lake, Gorakhpur, causing heavy mortality of the infected hosts. The fungus was identified as Achlya orion Coker Couch and its pathogenicity was also established by conducting laboratory inoculation experiments on the lines of Scott & O'Warren (8); (Srivastava & Srivastava, 14). In view of the above observations, it seemed desirable to investigate the host range of this mould on accurately identified hosts in order to asses the extent of damage done to such fishes.
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