In the process, though, the researchers had to strip away an outer coating, called the zona pellucida, that is essential to development.
Finally, after a third failure, they tried a different approach: doctors retrieved a fresh batch of eggs, and this time they used assisted zona hatching, in which the egg's .
Some sperm lack the ability to penetrate the egg's outer membrane, or zona pellucida, often as a result of old testicular injuries or early exposure to toxic chemicals.
Luis Otero Gonzáles arrestado por robo en Muhlenberg Gracias a Mike Himmelberger un mecánico de Muhlenberg Luis Otero González pudo ser arrestado bajo sospecho de robo. Las autoridades dicen que el sospechoso no tiene donde vivir y estaba tratando de forzar la entrada en varias casas. Pero fue capturado tras la llamada al 911 de Himmelberger. Carla Roldan, residente de la zona esta sorprendida del incidente. " Aquí es una zona tranquila ...
June 13, 2013 - WFMZ Eastern Pennsylvania and Western New Jersey
Tracy Lawrence in Country Standard Time I am excited about having Zona on RCR. It's going to be nice having a true country singer in this format, and we look forward to a lot of success with both Zona and Rocky Comfort Records,said Lawrence.
Daniel Ortega in Bloomberg The truth is that Zona Francas has seen rapid growth, rapid employment,Ortega said today at speech in Managua to celebrate international workers' day.