Maturation of spermatozoa, including the acquisition of motility and the ability to undergo capacitation, occurs during transit through the dynamic environment of the epididymis. The microenvironments created along the length of the epididymal tubule are essential to the molecular modifications of spermatozoa that result in fertile gametes. The secretory and resorptive processes of the epitheli...

Because epididymal secretory glycoproteins form important functional associations with maturing spermatozoa, the possibility has been explored that epididymal antigens might be useful in contraceptive vaccine development. Male and female rabbits, hamsters, and rats were immunized for several weeks with epididymal fluid, initially either with complete Freund's adjuvant, or conjugated with glutar...

Biometrics-based personal identification attempts to answer the questions ‘‘Who are you?’’ and ‘‘Are you who you claim to be?’’ Personal identification, regardless of method, is ubiquitous in our daily lives. For example, we often have to prove our identity to gain access to a bank account, to enter a protected site, to draw cash from an ATM, to log in to a computer, to claim welfare benefits, ...

introduction: undescended testis is a common problem in children. cryptorchid testis is frequently accompanied by gross morphologic changes with regard to the size and shape of the testis, various degree of detachment between the epididymis and testis. we assessed the epididymal anomalies and patency of process vaginalis in boys with udt.   material &method;: it is a prospective study which was...

Biometrics, which refers to identifying an individual based on his/her physical or behavior characteristics, is an emerging topic in the field of signal processing. Nevertheless, biometric applications have failed to become as widespread as once anticipated. After a very brief review of the field of biometrics, the present tutorial focuses on three main aspects of biometrics: maturity of techno...

The biometrics authentication systems take attentions to cover the weakness of password authentication system. In this paper, we focus attention on the multi modal-biometrics of behavior characteristics. For the integration of multi modal biometrics, some variations of Self Organizing maps and its incremental learning method for implementing adaptive authentication system are implemented and th...

Face and palmprint are two biometric characteristics with the highest user-acceptance. This paper presents techniques used in palmprint and face recognition as well as techniques used in biometric fusion. Some recent research trends directions in palmprint and face recognitions are described, such as the face recognition in video and touchless hand biometrics. Keywords-biometrics; face recognit...

Biometrics offers natural and scientific solution to key aspects of security management problems. Due to the increased security concerns in the past decade, biometrics has seen enormous growth and has found widespread applications in our everyday life. Widely researched biometrics traits include face, iris, fingerprint, hand geometry, palmprint, voice and signature. Of these, face and hand geom...

PURPOSE We compared vasoepididymostomy to microsurgical epididymal sperm aspiration and intracytoplasmic sperm injection for treatment of epididymal obstruction secondary to vasectomy. MATERIALS AND METHODS Results in patients who underwent vasoepididymostomy for vasectomy reversal at our institution were compared to those reported previously for microsurgical epididymal sperm aspiration and ...