Now showing items 1-10 of 280
What's the signification of nuclear vacuoles in human sperm?
The aim of this study was to determine the extent of DNA fragmentation and the presence of single/denatured or double stranded of DNA in sperm with large nuclear vacuoles (LNV) selected by high-magnification. A total of ...
Analysis of Lattice Size, Energy Density and Denaturation for a One-Dimensional DNA Model
There are several mechanical models to describe the DNA phenomenology. In this work the DNA denaturation is stu- died under thermodynamical and dynamical point of view using the well known Peyrard-Bishop model. The ...
Significance of extruded nuclear chromatin (regional nuclear shape malformation) in human spermatozoa: implications for ICSI
The aim of this study was to determine the extent of DNA fragmentation and the presence of denatured single-strand or normal double-strand DNA in spermatozoa with extruded nuclear chromatin (ENC) selected by high magnification. ...
Significance of large nuclear vacuoles in human spermatozoa: implications for ICSI
(Reproductive Healthcare Ltd, 2008-07-01)
The aim of this study was to determine the extent of DNA fragmentation and the presence of denatured single-stranded or normal double-stranded DNA in spermatozoa with large nuclear vacuoles (LNV) selected by high magnification. ...
Relationship between DNA damage and sperm head birefringence
(Elsevier B.V., 2011-06-01)
Birefringence or double refraction is the decomposition of a ray of light into two rays when it passes through an anisotropic material such as quartz. Sperm cells have been demonstrated to be optically anisotropic. The ...
Statistical Model to DNA Melting
(Editora Unesp, 2001-01-01)
Um modelo estatístico para o DNA é estudado a fim de se obter informações sobre o comportamento de variáveis termodinâmicas. Atenção especial é dada à desnaturação térmica desta macromolécula.
Recovery of DNA for the detection and genotyping of human papillomavirus from clinical cervical specimens stored for up to 2 years in a universal collection medium with denaturing reagent
(ELSEVIER SCIENCE BV, 2008)
The recovery and stability of DNA for the detection and genotyping of HPV in UCM-containing specimens, after exposure to denaturing reagents and stored for up to 2 years were evaluated. Samples were collected from 60 women ...