The Textbook of Contraceptive Practice is a current overview of population control. The authors are John Peel, Senior Lecturer in Sociology, University of Hull and Malcolm Potts, Director of Medical Studies, Sidney Sussex College, Cambridge. Individual chapters cover the various methods: the oral contraceptives, intrauterine devices, withdrawal, diaphragm, spermicides, safe period, sterilizatio...

The term biometry is derived from the Greek words ‘bios’ (life) and ‘metron’ (measure). In the broader sense, biometry can be defined as the measurement of body characteristics. With this non-technological meaning, this term has been used in medicine, biology, agriculture and pharmacy. For example, in biology, biometry is a branch that studies biological phenomena and observations by means of s...

introduction: correct interpretation of kidney images requires the knowledge of its normal size. this study aimed to establish normal values for kidney length and parenchymal thickness and identify the potential related factors in a group of iranian adults. methods: renal dimensions, including length and parenchymal thickness were measured by sonography in 103 individuals with no renal disease....

PURPOSE Partial Coherence Interferometry (PCI) is a fast, noncontact method to calculate lens implant power for cataract surgery. It has been reported as a potentially more accurate method than ultrasound biometry. Prospective study of the refractive outcomes of a consecutive series of patients undergoing phacoemulsification surgery with preoperative biometry by both ultrasound A-scan and PCI. ...

OBJECTIVE To ascertain whether a new instrument that uses partial coherence interferometry technology (Intraocular Lens Master [IOLm]) or ultrasound biometry provides a more accurate prediction of refractive outcomes in cataract surgery. METHODS This was a retrospective medical record review of 421 eyes of 304 patients who underwent cataract surgery with the IOLm and ultrasound biometry from ...

PURPOSE The study compared ocular biometry values using applanation and immersion techniques to determine the most applicable method for our tertiary training centre where personnel with different levels of experience and expertise in biometry take measurements used in calculation of required intraocular lens before cataract surgery. METHODS The study was a prospective cross-sectional compara...

This paper presents the first photoplethysmographic (PPG) signal dynamic-based biometric authentication system with a Siamese convolutional neural network (CNN). Our method extracts PPG signal’s characteristics from its diffusive dynamics, characterized by geometric patterns in (p,q)-planes specific to 0–1 test. dynamics are strongly dependent on vascular bed’s biostructure, unique each individ...