Cryopreservation of rare testicular-retrieved spermatozoa for intracytoplasmic sperm injection (ICSI) in patients with severe oligozoospermia and azoospermia remains a major challenge in clinical practice.This study evaluated the Cryopiece system as a potential Travel Bag technique to cryopreserve rare human spermatozoa for ICSI.Small numbers of ej
Conditional knockout of RAD51-related genes in Leishmania major reveals a critical role for homologous recombination during genome replication.
Homologous recombination (HR) has an intimate relationship with genome replication, both during repair of DNA lesions that might prevent DNA synthesis and in tackling stalls to the replication fork.Recent studies led us to ask if HR might have a more central role in replicating the genome of Leishmania, a eukaryotic parasite.Conflicting evidence ha
Microstructures, mechanical properties, and grease-lubricated sliding wear behavior of Cu-15Ni-8Sn-0.8Nb alloy with high strength and toughness
Abstract Alloys used as bearings in aircraft landing gear are required to reduce friction and wear as well as improve the load-carrying capability due to the increased aircraft Deck Repair Kits weights.Cu-15Ni-8Sn-0.8Nb alloy is well known for possessing good mechanical and wear properties that satisfy such requirements.In this study, the microstru
Green synthesis of bimetallic and trimetallic nanoparticles on glass granules for lead removal
This study synthesized and assessed the properties of bimetallic (Fe/Cd) and trimetallic (Fe/Cd/Cu) nanoparticles using grape leaf extract as a green antioxidant, replacing synthetic chemicals.These nanoparticles were immobilized on glass granules to form G-Fe/Cd and G-Fe/Cd/Cu nanocomposites.They were also evaluated for their effectiveness in extr