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A Cecchi

Publications and source records attributed to A Cecchi.

28 records · Page 2Linked to original sources

An application of INAA and PIXE on the analysis of nutritional and toxicological elements in samples of drinkable water.

Multielemental detection using Instrumental Neutron Activation Analysis (INAA) and Proton-Induced X-Ray Emission (PIXE) of drinkable water of Florence (Italy) is described. The concentrations of 52 elements were measured. No chemical treatment was performed on the samples, before or after irradiation. On the basis of an appropriate combination of the two analytical techniques, a procedure for aluminum determination was developed. Results are briefly discussed from a methodological point of view.

Evaluation Studies as Topic↗

[Collection of autologous blood during pregnancy and fetal safety. Computer analysis of fetal heart rate].

BACKGROUND: This study aims at objectively evaluating the impact on the fetus of a sudden maternal blood withdrawal, through a computer analysis of the various aspects of the cardiotocographic pattern before and after one autologous blood unit predonation from near term pregnant women. METHODS: For the collection of cardiotocographic data, a Sonicaid Team fetal monitor was used; it is a monitoring system which uses Doppler ultrasound impulses and autocorrelates the received Doppler signals with varied signals of frequency, connected to Sonicaid System 8000, a program for "objective" cardiotocographic analysis according to the so-called Dawes-Redman criteria. RESULTS: From the statistic comparison of Non Stress Tests preceeding and following predonation, some statistically significant differences have sometimes emerged on the level of specific parameters. CONCLUSIONS: In particular, the general variation of fetal heart frequency and fetal reactivity resulted higher after predonation, even though they were within absolute normality, justifying the suspicion that the stress of autologous predonation practice might produce some indefinite disturbance to fetal activity/rest rhythm.

Adult↗