The catalyst was characterized by scanning electron microcopy (SEM), transmission electron microscopy (TEM), GDC-0973 inductively coupled plasma optical emission spectrometry (ICP-OES) and nitrogen physisorption. Kinetic models based on the Langmuir Hinshelwood assumptions were proposed for the reactions and a nonlinear regression was performed to obtain the numerical values of the kinetic parameters.
CONCLUSIONS: The kinetic models predicted well the sugar hydrogenation process and the kinetic parameters were established. The model
can be used to predict the behaviour of batchwise operating slurry reactors. (C) 2011 Society of Chemical Industry”
“BACKGROUND: The objective of this research was to study the biodegradation kinetics of a mixture of phenol, 4-chorophenol 2,4-dichlorophenol and 2,4,6-trichlorophenol in a moving bed sequencing batch reactor (SBR) subjected to starvation and shock loads. The effect was evaluated on the degradation time and on the specific degradation rate.
RESULTS: The bacteria present in the system degraded effectively the mixture of phenols. Degradation efficiencies were higher than 98% as total phenols and greater than
95% as organic carbon. It was observed that starvation and shock loads had only a transient effect on microorganisms degradation rate. The substrate removal rate decreased when the perturbations were applied, but for subsequent SBR cycles the previous activity was recovered. Results also demonstrated that suspended biomass was more sensitive to changes than the attached biomass present in the moving bed.
CONCLUSIONS:
Pitavastatin order The moving bed SBR presented robust INCB024360 mw performance under variable influent concentrations of a mixture of inhibitory compounds. (C) 2011 Society of Chemical Industry”
“Objective: Improving diet and exercise can reduce survivors’ risk of cancer-related fatigue, poor physical functioning, and potential recurrence. A cancer diagnosis can represent a ‘teachable moment’, leading survivors to make positive changes in diet and exercise behaviors; however, little is known about how often this occurs or about factors that enhance or limit survivors’ ability to make these changes. This cross-sectional descriptive study investigated both the prevalence and clustering of self-reported changes in diet and exercise and how these changes related to ongoing cancer-related symptoms, social support, and stressful life events among long-term breast cancer survivors.
Methods: Survivors (n = 227, response rate = 72%) of a prior Cancer and Leukemia Group B treatment trial, on average 12 years post-diagnosis, completed a mailed survey assessing health behavior changes since diagnosis and current symptoms, social support, and stressful life events.
Results: Over half of survivors reported making positive exercise or diet changes since diagnosis: over 25% reported making exercise and diet changes.