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How can one of the most important forensic investigative procedures be so flawed? Currently, the analysis of sexual assault kits is tedious and requires skilled technicians, yet still fails to recover large amounts of DNA evidence. InnoGenomics plans to change this by giving laboratories a scalable sperm extraction solution to help make the sexual assault kit processing fully automated, while preserving the integrity of samples.
News Ticker. Sperm are attracted by heat. Sperm have a lot in common with military missiles, a study suggests.
Previous microarray analysis of germ cell mutants identified hundreds of sperm genes in Caenorhabditis elegans. To take a more comprehensive view on C. First, sperm transcriptome consists of considerable amounts of non-coding RNAs, many of which have not been annotated and may play functional roles during spermatogenesis.
A single focus optical tweezer is formed when a laser beam is launched through a high numerical aperture immersion objective. This objective focuses the beam down to a diffraction-limited spot, which creates an optical trap where cells suspended in aqueous solutions can be held fixed. Spermatozoa, an often probative cell type in forensic investigations, can be captured inside this optical trap and dragged one by one across millimeter-length distances in order to create a cluster of cells which can be subsequently drawn up into a capillary for collection.
Jude Children's Research Hospital. A comprehensive study of adolescent and young adult cancer patients found just The study was led by St.
Damiens, M. Vreysen, J. The use of the sterile insect technique relies on the release of sterilized mass-reared male insects which, before field releases, endure several unnatural treatments.
W hen I heard the news that stem cell scientists have managed to create an artificial version of sperm in the laboratory from embryonic cells, and used it to create healthy baby mice, I recalled the opposition to lesbians using sperm donors and a turkey baster to reproduce back in the s. Men, and sometimes other women, would ask if this was the beginning of the end of men. I was always quite puzzled at how these critics thought we would be able to prevent male babies from being born via this method, but I understood the wider point that men were feeling insecure about not even being needed, at least directly, in the pregnancy process.
The Cambodian-based breeder is flogging the semen - along with insemination kits - to others looking to move into the 'Frankenswine' market. Scientists in South Korea have been credited with originally genetically-engineering double-muscle hogs to avert a future pork shortage crisis. The shocking images have been condemned by animal lovers who say the burly pigs are the "stuff of nightmares. Giant hogs were first developed at Seoul National University, in South Korea, by microbiologists on a mission to create more meat.