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Problems in chemical analysis of environment


, : Problems in chemical analysis of environment. The American Association of Petroleum Geologists Bulletin 57(4): 792


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Zmijewska, W.; Semkow, T., 1978: Determination of iodine in biological materials by neutron activation analysis. A method for determination of I (total and protein bound iodine) in serum, urine and other biological materials was developed. The method consists of a gamma -spectrometric measurement of 128I activity after its radiochemical separation. The latte...

Hintzy, Fédérique.; Tordi, N., 2004: Mechanical efficiency during hand-rim wheelchair propulsion: effects of base-line subtraction and power output. Objective. The purpose of this study was to compare four methods of calculating the mechanical efficiency of hand-rim wheelchair propulsion. Methods. After completing a maximal incremental test, 18 untrained able-bodied males (mean age 22 years) p...

Gapon S.A., 1983: The effect of putative transmitters on identified neurons of the gastropod mollusk planorbarius corneus. In experiments on the gastropod mollusk P. corneus, 25 neurons were identified on the ventral surface of the ganglionic ring (with respect to their localization and electrophysiological properties). The effect of putative neurotransmitters, acetyl...

Tucci, A.; Poli, L.; Gasperoni, S.; Varoli, O.; Paparo, G.F.; D.G.orgio, R.; Stanghellini, V.; Corinaldesi, R., 1994: Evaluation of two therapeutic regimens for the treatment of Helicobacter pylori infection. In the present study we evaluated the efficacy and tolerability of two different therapeutic schedules in eradicating Helicobacter pylori. Forty-six consecutive patients (suffering from either peptic ulcer or nonulcer dyspepsia) with Helicobacter...

Karg, W., 1993: Raubmilbenarten in Boden- sowie Vegetationsschichten und ihre Eignung als Indikatoren fur Agrochemikalien. Predatory mite species of the cohors Gamasina prove to be sensitive indicators of biocides in terrestrial ecosystems. They colonize with high diversity of species the different strata, the upper strata of soil, the strata of herbage, shrubbery and...

Rodella, A.A., 1976: Quantitative inorganic analysis of sugar cane juice, vinasse and molasses. 2. A new procedure for the determination of calcium, magnesium, potassium, sulphur and phosphorus in a single extract. Brasil Acucareiro 88(1): 43-50

Trebichavsky I.; Zikan J.; Travnicek J., 1983: The appearance of an immuno globulin d like molecule on pig lymphocytes during ontogeny. An IgD-like molecule was found on the surface of pig fetal lymphocytes using guinea pig anti-human IgD antisera and indirect immunofluorescence. The binding of anti-IgD antisera was specifically inhibited with human IgD. Surface IgD-like molecules...

Stohler H.R., 1978: Ro 11 3128 a novel schistosomicidal compound. Siegenthaler, Walter And Ruedi Luethy (Ed ) Current Chemotherapy Proceedings Of The 10th International Congress Of Chemotherapy, Vols I And Ii Zurich, Switzerland, Sept 18-23, 1977 Xxiv+736p (Vol I); 625p (Vol Ii) Illus American Society For Microbiology: Washington, D C , Usa Isbn 0-914826-16-6 147-148

Goy J J.; Fromer M.; Schlaepfer J.; Kappenberger L., 1990: Clinical efficacy of radiofrequency current in the treatment of patients with atrioventricular node reentrant tachycardia. Eight women (mean age 41 years, range 24 to 62) with drug-resistant atrioventricular (AV) node reentrant tachycardia underwent radiofrequency catheter ablation. Radiofrequency energy was delivered in a unipolar mode with use of a back paddle as th...

Lecube, A.; Romero, O.; Sampol, G.; Mestre, O.; Ciudin, A.; Sánchez, E.; Hernández, C.; Caixàs, A.; Vigil, L.; Simó, R., 2016: Sleep biosignature of Type 2 diabetes: a case-control study. To determine whether or not the sleep disturbances associated with Type 2 diabetes affect the structure of sleep. We designed a case-control study in 76 patients with Type 2 diabetes and 76 control subjects without Type 2 diabetes, matched by age,...