Search results for "Preservation"
showing 10 items of 484 documents
EXPERIENCE WITH CYTOLYT SOLUTION IN ENDOSCOPIC ULTRASOUND-GUIDED TISSUE SAMPLING FOR SPECIMEN PRESERVATION AND EVALUATION
2020
Are the Best Available Technologies the only viable for energy interventions in historical buildings?
2014
Worth aged buildings represent among the existing buildings a special case when it comes to their energy refurbishment. Current available technologies for building components, characterized by high level of thermal performances, unfortunately, are also characterized, not rarely, by limited compatibility with the architectural integrity of the building. In other words, the so-called Best Available Technologies that are effectively adopted to optimize the energy performances of buildings, in the case of aged buildings to which a certain artistic, historic and/or architectural merit is recognized (heritage houses) could, actually, determine such kind of conflicts and therefore leading to the s…
Are the best available technologies the only viable for energy interventions in historical buildings?
2015
Worth aged buildings represent among the existing buildings a special case when it comes to their energy refurbishment. Unfortunately, the available technologies for building components characterized by high level of thermal performances show, not rarely, a limited compatibility with the architectural integrity of the building. In other words, the so-called Best Available Technologies, which are effectively adopted to optimize the building energy performances, in case of buildings to which a certain artistic, historic and/or architectural merit is recognized, i.e. heritage houses, might determine such kind of conflicts. This situation may lead to the selection of “non-invasive” but less per…
Greenhouse gases from sequential batch membrane bioreactors: A pilot plant case study
2016
Abstract The paper reports the results of nitrous oxide (N 2 O) emissions from aerobic and anoxic tank of a Sequential Batch Membrane Bioreactor (SB-MBR) pilot plant. The influence of salinity variation on N 2 O emission was analyzed by gradually increasing the inlet salt concentration from 0 to 10 g NaCl L −1 . The observed results showed that the N 2 O concentration of the gaseous samples was strongly influenced by the salt concentration. This result was likely related to a worsening of the nitrification activity due to the effect of salinity on autotrophic bacteria. Dissolved oxygen concentration and salinity were found to be the key factors affecting N 2 O concentration in the gaseous s…
Xenobiotic metabolizing enzyme activities and viability are well preserved in EDTA-isolated rat liver parenchymal cells after cryopreservation
1995
Rat liver parenchymal cells (PC) were isolated by EDTA perfusion and were purified by a subsequent Percoll centrifugation. The isolated PC had a viability of 95%, as judged by trypan blue exclusion. Freshly isolated PC were cryopreserved with an optimized protocol in a computer-controlled freezer. After thawing, the PC still retained a viability of 89%. The activities of representative xenobiotic metabolizing enzymes were compared between freshly isolated and cryopreserved PC after thawing. The cytochrome P450 content and the cytochrome P450 2C11 isoenzyme activity, determined by hydroxylation of testosterone in intact cells, were not affected by the cryopreservation. The following phase II…
In vivo survival rate of rabbit morulae after vitrification in a medium without serum protein.
2000
The in vivo survival rate of rabbit morulae after vitrification in a mixture of dimethyl sulphoxide and ethylene glycol solution without protein supplement (WPS) was compared with two types of protein supplements: rabbit serum (RS) and bovine serum albumin (BSA). Significant dif- ferences were observed in the percentage of transferable embryos (undamaged embryos after devit- rification, 80.4 % versus 93.2 and 92.1 %, WPS, BSA and RS, respectively, P < 0.05) and live born rate (40.9 % versus 56.1 %, WPS and BSA, respectively, P < 0.05). Non-significant differences were, however, observed in the percentages of implanted embryos at 12 days post-ovulation induc- tion (56.7, 69.7 and 68.6 %), po…
Fertility outcome after radical vaginal trachelectomy: a prospective study of 212 patients.
2011
ObjectiveFor treatment in patients with early-stage cervical cancer, radical vaginal trachelectomy (RVT) as a fertility-preserving surgery can be put on a par with radical hysterectomy as to oncologic safety. Our aim was to investigate the fertility concerns and outcome.MethodsProspective collection of fertility data of patients treated with RVT. The data were collected on personal communication, by telephone, or e-mail correspondence. Descriptive statistical analysis was performed.ResultsBetween March 2005 and April 2010, 212 patients were followed up after RVT. Only 76 patients (35.9%) were seeking parenthood currently. Sixty pregnancies occurred in 50 women. Five patients (8.3%) had firs…
Modelling the effect of ascorbic acid, sodium metabisulphite and sodium chloride on the kinetic responses of lactic acid bacteria and yeasts in table…
2010
he goal of this work was to apply the Quasi-chemical primary model (a system of four ordinary differential equations that derives from a hypothetical four-step chemical mechanism involving an antagonistic metabolite) in the study of the evolution of yeast and lactic acid bacteria populations during the storage of Manzanilla–Aloreña table olives subjected to different mixtures of ascorbic acid, sodium metabisulphite and NaCl. Firstly, the Quasi-chemical model was applied to microbial count data to estimate the growth–decay biological parameters. The model accurately described the evolution of both populations during storage, providing detailed information on the microbial behaviour. Secondly…