CONCLUSIONS: Natural kaolin exhibits a satisfactory performance for adsorption of Pb(II) from aqueous solution. The optimum conditions for adsorption were: ionic strength = 0.01 mol L(-1); pH >= 7.2; dosage = 10 g L(-1); temperature = 25 degrees C; duration >= 16 h (C(i) = 80 mg L(-1)); and the optimum conditions for desorption were ionic strength = 0.1 mol L(-1) and pH <= 5.0. (c) 2009 Society of Chemical Industry”
“Objective: To trace the spread of Acinetobacter baumannii in intensive care units (ICUs) before and after the 2008 Sichuan earthquake
in China.
Methods: A baumannii strains were collected between July and October 2007 from control patients SCH 900776 cost and in May 2008 from survivors of the Sichuan earthquake. The multidrug resistance profile of A baumannii was observed. The DiversiLab semi-automated rep-PCR system was used to determine the clonal relatedness of A baumannii strains; testing for antimicrobial susceptibility was performed using automated instruments.
Results: A total of 28 A baumannii strains were isolated, 13 of which had been isolated from control patients; 15 strains were isolated from earthquake survivors. Regardless of patient group, 2 clonal groups were observed in these isolates. The results demonstrate that most Of the A baumannii isolates recovered from the earthquake survivors were similar to those
obtained from the control LY2109761 molecular weight patients. This suggests that A baumannii species, particularly those of clonal groups A and B (most of which are multidrug-resistant [MDR]), have been well established in our ICU; that earthquake survivors probably acquired A baumannii in the hospital setting; and that A baumannii recovered from earthquake survivors may bring different genetic profiles into contact with local isolates.
Conclusions: Our findings highlight the need for stronger infection-control measures and emphasize the importance of rapid strain typing for monitoring pathogens such as A baumannii that are frequently associated with nosocomial infections.”
“A 2-month-old infant with congestive heart selleck chemical failure
was referred to the authors’ hospital. Echocardiography exhibited a dilated left ventricle (LV), poor LV systolic function, and intraventricular thrombus. Laboratory data showed a normal creatinine phosphokinase level and negative troponin T test results. The congestive heart failure was managed using a beta-blocker, an angiotensin receptor blocker, and diuretics. Head computed tomography performed during the treatment course showed periventricular calcifications. Congenital cytomegalovirus infection was subsequently diagnosed. Fetal echocardiography performed during pregnancy showed impaired LV function, suggesting that the cardiomyopathy was associated with cytomegalovirus infection in utero.”
“Objectives: Selection bias in case-control studies occurs when control selection is inappropriate. However, selection bias due to improper case sampling is less well recognized.