منابع مشابه
Development and initial testing of a pulse oximetry prototype for measuring dental pulp vitality
The guiding principle of endodontic treatment is to preserve teeth while maintaining its aesthetic and functional roles. To accomplish this goal the assessment of teeth pulp vitality is very important since it will determine the procedures that should be adopted and define the therapy strategy. Currently, the most commonly tests for determining dental pulp state are the thermal and the electric...
متن کاملVitality of optical vortices
Optical vortices are always created or annihilated in pairs with opposite topological charges. However, the presence of such a vortex dipole does not directly indicate whether they are associated with a creation or an annihilation event. Here we propose a method to distinguish between vortex dipoles that have just been created and those that are about to be annihilated. We use first and second ...
متن کاملMethods of sperm vitality assessment.
Sperm vitality is a reflection of the proportion of live, membrane-intact spermatozoa determined by either dye exclusion or osmoregulatory capacity under hypo-osmotic conditions. In this chapter we address the two most common methods of sperm vitality assessment: eosin-nigrosin staining and the hypo-osmotic swelling test, both utilized in clinical Andrology laboratories.
متن کاملOn the Vitality of Vitalism
MANY OF those who share an interest in the life sciences today, perhaps most, would agree with the claim that vitalism is obsolete. Some prominent biologists now use ‘vitalism’ as a derogatory label associated with lack of intellectual rigour, anti-scientific attitudes, and superstition (see, e.g., Dawkins, 1988). Other scientific commentators treat the term more seriously, but equally arrive a...
متن کاملVitality Detection in Fingerprint Identification
The fingerprint liveness detection refers to the inspection of the finger characteristics to ensure whether the input finger is live or artificial. A number of fingerprint identification systems are used widely and implemented at various important places such as border and immigration services. However, it is not declared by the manufacturers of these systems whether liveness detection is actua...
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ژورنال
عنوان ژورنال: Journal of the Royal Society of Medicine
سال: 1990
ISSN: 0141-0768,1758-1095
DOI: 10.1177/014107689008300803