Presumptive tests: A substitute for Benzidine in blood samples recognition

Presumptive tests.

The necessary characteristics of presumptive tests are that they require no more than weeks or months to perform; the-results from such tests be highly reproducible; the significance of test results be validated by empirical correlation; they be capable of being coupled to appropriate metabolic activation systems; they circumvent the requirement that the intact animal (or a similarly limited co...

Critical Revision of Presumptive Tests for Bloodstains

A study of the sensitivity and specificity of four presumptive tests for blood.

The purpose of this work was to conduct a comparative study of the sensitivity and specificity of phenolphthalein, tetramethylbenzidine, leucomalachite green, and orthotolidine as presumptive tests for blood. The findings of this study indicate that the phenolphthalein and the leucomalachite green tests are the most specific and that the tetramethylbenzidine and orthotolidine tests are the most...

An Evaluation of Two Presumptive Blood Tests and Three Methods to Visualise Blood

passivity in waiting for godot and endgame: a psychoanalytic reading

this study intends to investigate samuel beckett’s waiting for godot and endgame under the lacanian psychoanalysis. it begins by explaining the most important concepts of lacanian psychoanalysis. the beckettian characters are studied regarding their state of unconscious, and not the state of consciousness as is common in most beckett studies. according to lacan, language plays the sole role in ...