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Radiation exposure in patients undergoing endoscopic retrograde cholangiopancreatography and endoscopic papillotomy (1978)

Peters, P. E. ; Katz, G. ; Safrany, L. ; [et al.]

Springer

Abdominal imaging 3 (1978), S. 353-355

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ISSN: 1432-0509

Keywords: Radiation exposure ; Endoscopic retrograde cholangiopancreatography ; Endoscopic papillotomy

Source: Springer Online Journal Archives 1860-2000

Topics: Medicine

Notes: Abstract Radiation exposure was studied in 327 patients undergoing endoscopic retrograde cholangiopancreatography, or endoscopic papillotomy taking into account fluoroscopy time and incident area exposure. The mean fluoroscopy time was 238±152 seconds and the incident area exposure 3,730±2,790 R×cm2. These results were compared with standard exposures in upper GI series and colon examinations as found in the literature.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01887091

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Transformations of the m-carborane cage in m-carborane-containing polyamides having different structural units in the chain (1986)

Bekasova, N. I. ; Komarova, L. G. ; Katz, G. A. ; [et al.]

Weinheim : Wiley-Blackwell

Acta Polymerica 37 (1986), S. 438-440

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ISSN: 0323-7648

Keywords: Chemistry ; Polymer and Materials Science

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Physics

Description / Table of Contents: Raznozvenny, m-Carboran enthaltende Polyamide (Polyamide mit unterschiedlicher Struktur der Kettenglieder) wurden durch nucleophilen Abbau des Carborankäfigs in m-Carboran enthaltenden Polyamiden erhalten. Die Struktur der Dicarboundecaborat enthaltenden Polymere wurde mittels IR- und NMR-Spektroskopie untersucht. Es wurde festgestellt, daß die Dicarboundecaborat enthaltenden Polyamide sich beim Aufbewahren an Luft unter vollständigem Abbau der Polyederstruktur des Carborans zersetzen.

Notes: m-Carborane-containing polyamides having different structural units in the chain are formed by nucleophilic degradation of the carborane cage of m-carborane-containing polyamides. The structure of dicarbaundecaborate-containing polymers was investigated by IR and NMR spectroscopy. Some chemical and physico-chemical properties of these polymers were studied. It was shown that dicarbaundecaborate-containing polyamides when kept in air decompose with complete degradation of the polyhedral structure of carborane.

Additional Material: 3 Ill.