OBJECTIVE Preservation of biological materials at subzero Centigrade temperatures, cryopreservation, is important for the field of tissue engineering and organ transplantation. Our group is studying the use of isochoric (constant volume) systems of aqueous solution for cryopreservation. Previous studies measured the pressure-temperature relations in aqueous isochoric systems in the temperature ...

The cryopreservation of organs became an active area of research in the 1950s as a result of the rediscovery of the cryoprotective properties of glycerol by Polge, Smith, and Parkes in 1949. Over the ensuing four decades of research in this area, the advantages of vitrification, or ice-free cryopreservation, have become apparent. To date, experimental attempts to apply vitrification methods to ...

The Soufrière Hills Volcano (SHV) crystallizes cristobalite (crystalline silica) in its lava domes, and inhalation of cristobaliterich ash may pose a chronic respiratory hazard. We investigate the causes of variation in cristobalite abundance (measured by X-ray diffraction) in ash from dome collapses, explosions and ash venting from 1997 to 2010. Cristobalite abundance in bulk dome-collapse ash...

The Soufrière Hills Volcano (SHV) crystallizes cristobalite (crystalline silica) in its lava domes, and inhalation of cristobaliterich ash may pose a chronic respiratory hazard. We investigate the causes of variation in cristobalite abundance (measured by X-ray diffraction) in ash from dome collapses, explosions and ash venting from 1997 to 2010. Cristobalite abundance in bulk dome-collapse ash...

Adv. Mater. 2008, 20, 1–4 2008 WILEY-VCH Verlag Gmb A T IO N Fundamental understanding of composition variations and morphology in the nanoscale is essential to the design of advanced materials. Partial crystallization or devitrification of bulk metallic glasses (BMGs) results in novel microstructures, with high density (10–10m ) nanocrystalline precipitates evenly distributed in a glassy matri...

Abstract Study question Does cumulative livebirth-rate (CLBR) after reutilization of vitrified oocytes differ between patients having undergone fertility preservation (FP) for oncologic (onco-FP) reason or benign conditions (benign-FP)? Summary answer Although CLBR per woman was lower in the onco-FP group, there no statistically significant association multivariate analysis and CLBR. What is kn...

The Volcanic-related Be-U-Mo Baiyanghe deposit is located in the Paleozoic Xuemisitan Volcanic Belt West Junggar (NW China). It largest Be Asia which dominantly hosted late Devonian rhyolitic tuff and Carboniferous Yangzhuang granite (313 ± 2 Ma) that were emplaced after closure of oceanic domain. a strongly fractionated peralkaline A1-type volcanic rock with major magmatic enrichment Nb, Y, Th...

The current study involves an experimental investigation of the decomposition of various biomass feedstocks and their conversion to gaseous fuels such as hydrogen. The steam gasification process resulted in higher levels of H2 and CO for various CO2 input ratios. With increasing rates of CO2 introduced into the feed stream, enhanced char conversion and increased CO levels were observed. While C...

Transurethral resection of the prostate (TURP) is the most common surgical intervention for benign prostatic hyperplasia (BPH), largely due to lower urinary tract symptoms refractory to medical therapy. TURP remains the gold standard for men with prostates sized 30g-80g, while open prostatectomy has been the preferred option for men with glands larger than 80g-100 g and those with other lower u...

Quenched glass formed by hypervelocity impacts can encapsulate and preserve biosignatures on Earth, demonstrating the fossilization potential of glass-rich impactites on Mars. However, definitive spectral signatures of impact glass have not been identified on the martian surface from orbital remote sensing. Here we present a remote compositional survey of probable impactites in well-preserved c...