1,770,926 research outputs found
A case of acute small bowel obstruction due to metastasis of undiagnosed primary carcinoma of the lung
No full textTurk J Gastroenterol., 0–0.A 75-year-old man was admitted to our department
with abdominal pain, nausea and vomiting.
He was a heavy smoker (a packet/day/60 years)
with chronic obstructive pulmonary disease
0=0 Rainy Day Dub September 5th 2006
No full textIt was a rainy day in a rainy summer...I decided to grab some of my favorite dub records and record a set
The basin of the singleton attractor (0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0) is displayed hierarchically.
No full textThe basin of the singleton attractor (0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0) is displayed hierarchically.</p
The flow chart for determing the pre-images of target state <i>S</i> = (0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0).
No full textThe flow chart for determing the pre-images of target state S = (0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0).</p
Rapid thermal annealing processing of GaN epilayer on sapphire(0 0 0 1)
No full textThe effect of rapid thermal annealing (RTA) in a Nz ambient up to 900 degrees C has been investigated for GaN films grown on sapphire(0 0 0 1) substrates. Raman spectra, X-ray diffractometry and Hall-effect studies were performed for this purpose. The Raman spectra show the presence of the E-2 (high) mode and a shift in the wave number of this mode with respect to the annealing processing. This result suggests the presence and relaxation of residual stress due to thermal expansion misfit in the films which are confirmed by X-ray measurements and the structure quality of GaN epilayer was improved. Furthermore, the electron mobility increased at room temperature with respect to decrease of background electron concentration after RTA. (C) 1998 Elsevier Science B.V. All rights reserved
Extended study of the atomic step-terrace structure on hexagonal SiC (0 0 0 1) by chemical-mechanical planarization
No full textThe atomic step-terrace structure on hexagonal silicon carbide (0 0 0 1) surface is significant in that it guides the improvement of chemical-mechanical planarization (CMP) and epitaxial technique. The final state of atomic step-terrace structure can be used as a feedback for improving the CMP process, the formula of slurry and the epitaxial technique. In this paper an extended study of the atomic step-terrace structure on 4H- and 6H-SiC (0 0 0 1) planarized by CMP is presented. Surface topography of the (0 0 0 1) facet plane of 4H- and 6H-SiC wafers during CMP process was studied by atomic force microscopy (AFM). The results demonstrate that high-definition atomic step-terrace structure of the (0 0 0 1) facet plane of both 4H- and 6H-SiC can be obtained by appropriate CMP process, and during CMP process, the formation of step-terrace structure had a certain rule. We studied the relationship between the CMP process and the characteristics of the atomic step-terrace structure, and analyzed the possible impact of the CMP process on the status of terraces. We studied the distribution of terraces in different areas of the wafer, and the origin of this distribution was discussed briefly. We also describe the formation of dislocations in hexagonal SiC. The results of this paper may provide some ideas and suggestions for CMP, crystal growth and epitaxy research
Evaluation by N terminal prohormone of brain natriuretic peptide cocentrations and Ross scoring of the efficacy of digoxin in the treatment of heart failure secondary to congenital heart disease with left to right shunts
No full textPediatr Cardiol (2013) 34:1583–1589.This study aimed to evaluate the effectiveness
of digoxin in children with heart failure secondary to leftto-right
shunt lesions and normal left ventricular systolic
function. The study registered 37 such patients (ages
10 days to 24 months, groups 1 and 2) and used 20 healthy
children as a control group (group 3). Left ventricular
systolic function, as assessed by conventional echocardiography,
was normal in all the subjects. Congestive heart
failure was diagnosed by clinical evaluation and modified
Ross scoring. Plasma N-terminal prohormone of brain
natriuretic peptide (NT-proBNP) concentrations and complete
blood counts were assessed in all the children. Group
1 was treated with digoxin, enalapril, and furosemide and
group 2 with enalapril and furosemide. Approximately
1 month after starting treatment, the patients were reevaluated
by physical and echocardiographic examinations,
modified Ross scoring, plasma NT-proBNP concentrations,
and complete blood counts. The pre- and posttreatment
Ross scores of group 1 (p = 0.377) and group 2
(p = 0.616) did not differ significantly. The NT-proBNP
values in both groups decreased after treatment
(p = 0.0001). The pre- and posttreatment NT-proBNP
values did not differ significantly in group 1 (p = 0.094))
and group 2 (p = 0.372). The pretreatment NT-proBNP
values in groups 1 and 2 (p = 0.0001) were significantly
higher than in the control group (p = 0.003). A smaller
difference was observed between posttreatment NT-proBNP
values in group 1 and the control group (p = 0.045).
We found no significant difference between the posttreatment
NT-proBNP values of group 2 and those of the
control group (p = 0.271). The study showed that both
treatments currently used to treat heart failure secondary to
congenital heart disease with left-to-right shunts and preserved
left ventricular systolic function are effective and do
not differ significantly. Thus, digoxin does not provide any
extra benefit in the treatment of such patients
Chylous ascites after liver transplantation incidence and risk factors
No full textLiver Transpl. 18:1046-1052, 2012.In this study, we evaluated the diagnosis, epidemiology, risk factors, and treatment of chylous ascites developing after livertransplantation (LT). Between 2002 and 2011, LT was performed 693 times in 631 patients at our clinic. One-hundred fifteenof these patients were excluded for reasons such as retransplantation, early postoperative mortality, and insufficient data.Chylous ascites developed after LT (mean 6 SD ¼ 8.0 6 3.2 days, range ¼ 5-17 days) in 24 of the 516 patients includedin this study. Using univariate and multivariate analyses, we examined whether the following were risk factors for developingchylous ascites: age, sex, body mass index, graft-to-recipient weight ratio, Model for End-Stage Liver Disease score, venacava cross-clamping time, total operation time, Child-Pugh classification, sodium level, portal vein thrombosis or ascitesbefore transplantation, donor type, albumin level, and perihepatic dissection technique [LigaSure vessel sealing system(LVSS) versus conventional suture ligation]. According to a univariate analysis, a low albumin level (P ¼ 0.04), the presenceof ascites before transplantation (P ¼ 0.03), and the use of LVSS for perihepatic dissection (P < 0.01) were risk factors fordeveloping chylous ascites. According to a multivariate Cox proportional hazards model, the presence of pretransplant asci-tes [P ¼ 0.04, hazard ratio (HR) ¼ 2.8, 95% confidence interval (CI) ¼ 1.1-13.5] and the use of LVSS for perihepatic dis-section (P ¼ 0.01, HR ¼ 5.4, 95% CI ¼ 1.5-34.4) were independent risk factors. In conclusion, the presence ofpreoperative ascites and the use of LVSS for perihepatic dissection are independent risk factors for the formation of chylousascites. To our knowledge, this study is the most extensive examination of the development of chylous ascites. Neverthe-less, our results should be supported by new prospective trials. Liv er Transpl 18:1046-1052, 2012.VC2012 AASLD
- …
