Automated low-cost device to produce sub-micrometric polymer fibers based on blow spun method.

Attending the latest advances in polymeric fibers, the design of low-cost, and high-quality scientific equipment for obtaining fibers seemed essential. To overcome this challenge, a 3D printable prototype was designed, assembled, and validated to obtain fibers using the SBS method. The particular configuration of the prototype consisted of controlling the process conditions such as working distance and injection flow, as well as other parameters such as RPM and the axial movement of the cylindrical collector.

Relevance of sampling and DNA extraction techniques for the analysis of salivary evidence from bite marks: a case report.

Bite mark evidence has been repeatedly found in criminal cases. Physical comparison of a bite mark to the teeth of available suspects may not always be possible. Experimental studies have shown that the analysis of DNA present in the saliva recovered from bite marks might help in the identification of individuals.

Identification of human remains by DNA analysis of the gastrointestinal contents of fly larvae.

Dipterous fly larvae (maggots) are frequently collected from a corpse during a criminal investigation. Previous studies showed that DNA analysis of the gastrointestinal contents of maggots might be used to reveal the identity of a victim. However, this approach has not been used to date in legal investigations, and thus its practical usefulness is unknown.

[Usefulness of 2-D ultrasound in diagnosis of pericardial partial defects].

A case of 2 year old female, asymptomatic, was referred to this hospital in order that an abnormal radiological cardiac shape could be studied. Physical examination and ECG were normal. The 2-D ultrasound showed systolic deformation on the antero-lateral wall in the left ventricle, with an increased ecogenity and protrusion of the left earlobe to the left lung.