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  • 1
    Electronic Resource
    Electronic Resource
    Arsenic metabolism in marine bacteria and yeast (1980)
    Springer
    Marine biology 60 (1980), S. 1-7 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Arsenic metabolism was studied for two marine microorganisms, a facultative anaerobic bacterium, Serratia marinorubra, and an obligately aerobic yeast, Rhodotorula rubra. Both were cultivated in media with (74As) arsenate (As V), and the products of arsenate metabolism were determined qualitatively. Both the bacterium and the yeast produced arsenite (AS III) and methylarsonic acid [CH3AsO(OH)2]. In addition to the foregoing, only the yeast produced dimethylarsinic acid (CH3)2AsO(OH) and volatile alkylarsines. In contrast, the bacterium growing anaerobically with cobalamine as a cofactor did not synthesize gaseous forms of arsenic such as methylarsines. Neither organism synthesized arsoniumphospholipids such as those produced by marine phytoplankton or terrestrial fungi. The yeast did not accumulate arsenite, but instead transported some of it into the culture medium and methylated the remainder first to methylarsonic acid and then to dimethylarsinic acid. Finally, the latter compound was methylated further and volatile alkylarsines were formed. In contrast, the bacterium retained all products of arsenate metabolism intracellularly. Both the bacterium and the yeast, therefore, converted relatively toxic arsenate, the most abundant arsenic compound in seawater, to products that were presumably less toxic.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00395600
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  • 2
    Electronic Resource
    Electronic Resource
    Angiographic and surgical aspects of compressive muscular bridges and intramyocardial paths of the anterior interventricular artery (based on 12 cases) (1988)
    Springer
    Surgical and radiologic anatomy 10 (1988), S. 113-120 
    Details
    ISSN: 1279-8517
    Keywords: Myocardial bridge ; Coronary arteriography ; Coronary arteries ; Intramyocardial IVA
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Les auteurs rapportent 12 cas de ponts myocardiques sur l'artère interventriculaire antérieure, de découverte chirurgicale: 5 ponts myocardiques compressifs limités, 7 artères interventriculaires antérieures de trajet intramyocardique découvert en peropératoire. L'aspect retrouvé en per-opératoire est comparé aux constatations angiographiques permettant d établir une corrélation anatomo-radiologique. Les autres insistent sur la différence de fréquence et de signification existant entre pont myocardique compressif (d'indication chirurgicale) et artère interventriculaire antérieure intramyocardique (de découverte fortuite lors d'un geste de revascularisation coronarienne indiqué pour des lésions athéroscléreuses sténosantes).
    Notes: Summary The authors report 12 cases of myocardial bridges over the anterior interventricular artery discovered surgically. In 5 the compressive myocardial bridges were limited; in 7 the intramyocardial course of the anterior ventricular artery was discovered at operation. Comparison of the operative appearances with the angiographic findings affords a basis for anatomico-radiologic correlation. The authors stress the difference in frequency and significance between the compressive myocardial bridge (an indication for surgery) and the intramyocardial anterior interventricular artery discovered by chance during a procedure for coronary revascularization indicated for stenosing atherosclerotic lesions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02307819
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  • 3
    Electronic Resource
    Electronic Resource
    Aspects angiographiques et chirurgicaux des ponts musculaires compressifs et des trajets intramyocardiques de l'artère interventriculaire antérieure (à propos de 12 cas) (1988)
    Springer
    Surgical and radiologic anatomy 10 (1988), S. 7-11 
    Details
    ISSN: 1279-8517
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Conclusion Seule une minorité de ponts myocardiques donne une constriction systolique de la portion intramurale des vaisseaux. L'ischémie et la douleur sont rares, et correspondent à des ponts musculaires épais, entraînant une diminution de calibre de l'artère de plus de 75%: le diagnostic est difficile et repose sur la coronarographie dont il faut savoir multiplier les incidences. On peut s'aider d'artifices, tels que l'augmentation de la fréquence cardiaque pour mettre en évidence l'anomalie, surtout si le réseau coronarien apparaît normal et lorsqu'il existe une Symptomatologie clinique évocatrice. Dans le cas de pont situé sur une artère athéromateuse, le diagnostic est difficile à porter de façon certaine. Le diagnostic d'IVA intramyocardique « simple » est plus difficile à évoquer, l'étranglement systolique étant absent. Seul un aspect rigide de l'IVA, associé à une bouche artérielle distalc signant l'émergence artérielle du myocarde peut faire évoquer le diagnostic; la lésion coronarographique est superposable à la lésion per-opératoire dans le cas de pont musculaire isolé. Par contre, le diagnostic d'IVA intramyocardique est parfois difficile, certaines pouvant être invisibles en coronarographie si le pont est plus fibreux que musculaire. Le pont myocardique compressif symptomatique est une indication opératoire en soi. Parfois il s'agit d'un simple constat opératoire, et se pose alors le problème du retentissement clinique: est-il seulement lié au pont ou aux lésions d'athérome sous-jacentes, voire à l'association des deux? Dans le doute, il est licite de réaliser dans ce cas une myotomie associée au pontage aorto-coronarien. L'IVA intramyocardique « simple » constitue une anomalie frequente; son repérage pré-opératoire est possible. Lors d'une chirurgie coronarienne réalisée pour sténose athéromateuse, elle rend l'acte opératoire plus difficile et plus long, obligeant à repérer puis à disséquer la portion artérielle à ponter (l'indication opératoire étant portée dans ces cas pour des lésions associées d'athérosclérose coronarienne).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02199689
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  • 4
    Electronic Resource
    Electronic Resource
    Physicochemical Properties of Acylated Casein Micelles in Milk (2002)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 67 (2002), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: : The objective of this study was to determine the effects of acetylation or succinylation on the physicochemical properties of casein micelles in milk. Analysis of untreated and modified milk samples revealed solubilization of caseins and calcium phosphate from the micelle under mild acylation treatments. Solvation of micelle was affected, whereas no influence in size dia and potential zeta arose from the acylation treatments. Physicochemical characteristics of acetylated milk sample were intermediate between untreated and succinylated ones. Changes were also observed after calcium addition to reconstituted milk. Calcium supplementation counteracted the effect of chemical modification of caseins by reducing the susceptibility of casein micelle to disassembly.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.2002.tb11356.x
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  • 5
    Electronic Resource
    Electronic Resource
    BiP Is a Substrate for src Kinase in Vitro
    Amsterdam : Elsevier
    Biochemical and Biophysical Research Communications 201 (1994), S. 1548-1553 
    Details
    ISSN: 0006-291X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1006/bbrc.1994.1880
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  • 6
    Electronic Resource
    Electronic Resource
    Novel, general synthesis of the chiral catalysts diphosphine-ruthenium (II) diallyl complexes and a new practical in situ preparation of chiral ruthenium (II) catalysts
    Amsterdam : Elsevier
    Tetrahedron: Asymmetry 5 (1994), S. 665-674 
    Details
    ISSN: 0957-4166
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0957-4166(94)80029-4
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  • 7
    Electronic Resource
    Electronic Resource
    Enantioselective hydrogenation reactions with a full set of preformed and prepared in situ chiral diphosphine-ruthenium (II) catalysts.
    Amsterdam : Elsevier
    Tetrahedron: Asymmetry 5 (1994), S. 675-690 
    Details
    ISSN: 0957-4166
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0957-4166(94)80030-8
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  • 8
    Electronic Resource
    Electronic Resource
    Dynamic kinetic resolution of cyclic β-ketoesters with preformed or prepared in situ chiral diphosphine-ruthenium (II) catalysts
    Amsterdam : Elsevier
    Tetrahedron Letters 35 (1994), S. 4559-4562 
    Details
    ISSN: 0040-4039
    Keywords: Asymmetric Hydrogenation ; Chiral Ruthenium Catalysts ; β-Hydroxy Esters
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/S0040-4039(00)60727-X
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  • 9
    Electronic Resource
    Electronic Resource
    Effect of K-Casein Deglycosylation on the Acid Coagulability of Milk (2003)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 68 (2003), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: : The relationship between the content of N-acetylneuraminic acid residues of micellar K-casein and acid coagulability of milk was investigated. At 30 °C, partial deglycosylation of micellar K-casein does not significantly affect the content of micellar proteins, micellar surface charge, and micellar solvation. Casein micelles modified by the release of part of the N-acetylneuraminic acid residues showed a shorter acid gelation time, a higher rate of gel strengthening, and a higher final firmness. This enhancement in the gelation ability of the neuraminidase-treated casein micelles of milk should appear as the result of increase in number of hydrophobic sites on the surface of casein micelle due to enzymatic deglycosylation of micellar K-casein.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.2003.tb07037.x
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  • 10
    Electronic Resource
    Electronic Resource
    Radiological follow-up of inverted papilloma (2000)
    Springer
    European radiology 10 (2000), S. 1184-1189 
    Details
    ISSN: 1432-1084
    Keywords: Key words: Paranasal sinuses – Neoplasms – CT – MR imaging – Inverted papilloma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. The aim of this study was to describe cross-sectional imaging features of recurrent papilloma of the nasal fossa and paranasal sinuses and to evaluate the role of MR and CT in the postoperative follow-up of this lesion. Magnetic resonance imaging and CT of ten patients who presented recurrence of inverted papilloma were reviewed and correlated to initial imaging, endoscopy, and surgical reports. Imaging patterns of recurrent inverted papilloma are identical to those of initial tumors and recurrence location is closely related to the site of the former lesion. Magnetic resonance is more efficient than CT for the diagnosis and evaluation of extensions. Magnetic resonance supplies the deficiencies of endoscopy in case of extensions to the frontal sinus or the lateral recess of the antrum, especially if mucosal hyperplasia or sinusitis is associated. Magnetic resonance imaging is the first imaging modality to perform in the follow-up after removal of inverted papilloma.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003309900292
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