منابع مشابه
Direct Photonic Fusion of Vitrified Bonding Materials
The purpose of this study is to show the effects of the direct fusion of raw materials used for vitrified grinding wheels by photonic interactions. The paper describes the construction of a sintering apparatus that employs a pulsed neodymium: yttrium aluminum garnet (Nd:YAG) laser to fuse a combination of raw materials such as ball clay, feldspar, and borax to form a partially-crystalline glass...
متن کاملCryo-electron microscopy of vitrified specimens.
Present addresses: ' Centre de Microscopie Electronique (CME), 27 Rue du Bugnon, CH-105 Lausanne; Laboratoire Europeen de Biologie Moleculaire, I.L.L. 156X; F-38042 Grenoble Cedex; ' The Institute of Biophysics, Academica Sinica, Peking, China; 4 Institut de Biochimie, n Rue Humann, F-67000 Strasbourg; 5 Centre de Genetique Moleculaire, C.N.R.S., F-9H90 Gif/Yvette; 6 Howard Hughes Medical Insti...
متن کاملEffects of Resveratrol on Vitrified Porcine Oocytes
Vitrified MII porcine oocytes are characterized by reduced developmental competence, associated with the activation of the apoptotic pathway. Resveratrol (R), a polyphenolic compound present in several vegetal sources, has been reported to exert, among all its other biological effects, an antiapoptotic one. The aim of this study was to determine the effects of R (2 µM) on the apoptotic status ...
متن کاملObstetric outcomes after transfer of vitrified blastocysts.
BACKGROUND It has been claimed that the risks to the child resulting from vitrification as compared with the slow-freezing technique, may be higher owing to the high concentrations of potentially toxic cryoprotectants. We therefore retrospectively compared the obstetric and neonatal outcomes in a cohort of children born after transfer of vitrified blastocysts, fresh blastocysts and slow-frozen ...
متن کاملFrom quartz hazard to quartz risk: the coal mines revisited.
Following the classification of quartz as a human carcinogen by the IARC, many standard-setting committees are currently trying to convert this hazard into their national or EU standards. Since human data to set a safe exposure limit for quartz are limited, we hypothesized that lung burden data on quartz in coal miners' lungs after lifetime exposure could be used to set a non-carcinogenic lung ...
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ژورنال
عنوان ژورنال: Nature
سال: 1901
ISSN: 0028-0836,1476-4687
DOI: 10.1038/064102a0