Beyond 260 nm, the density of microtwins is clearly reduced, resulting in thick layers with a top part of higher crystalline quality. Microtwins resulted insensitive to the postdeposition annealing. Instead, the density of stacking faults across 11 (1) over bar planes decreases with the thermal treatment. In conclusion, the defect density was proved to diminish with increasing Ge thickness and after annealing. Moreover, it
is noteworthy that the annealing generates a tetragonal distortion in the Ge films, which get in-plane tensely strained, probably due to thermal mismatch between Ge and Si. (C) 2009 American Institute of Physics. [doi: 10.1063/1.3224947]“
“Arterial ischemic stroke involving the posterior circulation is uncommon in children. CP-868596 solubility dmso The underlying etiologies and risk factors predisposing to posterior circulation stroke include vasculopathies, intracranial trauma, cardiac disease, infection, and hematologic disorders. However, in many children with posterior circulation stroke, the underlying mechanisms are poorly understood. We describe a 14-month-old infant with recurrent arterial ischemic stroke involving find more the posterior circulation secondary to an aneurysm
of the basilar artery.”
“Objective-To determine the apparent prevalence of shedding of Cryptosporidium spp in healthy alpaca crias and their dams on 14 farms in New York and 1 farm in Pennsylvania.
Design-Cross-sectional study.
Animals-110 alpaca crias and their 110 dams.
Procedures-Fecal samples were obtained from 220 alpacas at 14 alpaca farms in New York and 1 farm in Pennsylvania. For each animal, age, sex, and health condition were recorded. A fecal score (1 = normally formed; 2 = soft or loose; 3 = diarrhetic) was recorded for each cria. Cryptosporidium oocysts were identified in fecal samples by a direct immunofluorescence assay.
Results-Apparent prevalence of fecal shedding of Cryptosporidium oocysts was 8% (95% confidence interval, AZD6094 supplier 4% to 15%) in dams and was 7% (95% confidence interval, 3% to 13%) in crias. There was no significant difference in age between dams
with positive fecal test results for Cryptosporidium oocysts (median age, 4 years; range, 3 to 8 years) and dams with negative results (median age, 4 years; range, 2.5 to 19 years). No significant difference was found in age between crias with positive fecal test results (median age, 20 days; range, 7 to 53 days) and those with negative results (median, 36 days; range, 2 to 111 days). No significant difference in fecal scores was found between crias with positive versus negative fecal test results.
Conclusions and Clinical Relevance-A higher than previously reported apparent prevalence of fecal shedding of Cryptosporidium oocysts in healthy alpacas was found. A zoonotic risk should be considered, especially for Cryptosporidium parvum.