The superfluid properties of attractive Hubbard model in dice lattice are investigated. It is found that three superfluid order parameters increase as the interaction increases. When the filling factor falls into the flat band, due to the infinite large density of states, the resultant superfluid order parameters are proportional to interaction strength, which is in striking contrast with the exponentially small counterparts in usual superfluid (or superconductor).
View Article and Find Full Text PDFHypothesis: Whereas autophagy has been linked to various human diseases, whether it also plays a role in cholesteatoma is virtually unknown. This study aimed to investigate the activity and regulation of autophagy in cholesteatoma.
Background: The treatment of middle ear cholesteatoma has been challenging due to an insufficient understanding of the underlying disease mechanism.
Objectives: To compare the fetal echocardiographic measurements and neonatal outcome of fetuses with diagnosis of critical pulmonary stenosis (CPS/IVS) and pulmonary atresia with intact ventricular septum (PA/IVS) to identify the predictors of neonatal ductus dependence and the need for neonatal intervention.
Methods: Forty-four fetuses with a diagnosis of membranous PA/IVS or CPS/IVS referred to Shanghai Xinhua Hospital Affiliated to Shanghai Jiaotong University between June 2009 and November 2014 were respectively analyzed. We analyzed their fetal and pediatric echocardiographic features and clinical features after birth.
Objectives: To analyze the clinical features, immediate and short-term outcome of percutaneous balloon pulmonary valvuloplasty (PBPV) of neonates with pulmonary atresia with intact ventricular septum (PA/IVS) or critical pulmonary stenosis with intact ventricular septum (CPS/IVS) who underwent PBPV as initial intervention methods to evaluate the risk factors of reintervention.
Method: Thirty-eight neonates with PA/IVS or CPS/IVS admitted to Shanghai Xinhua Hospital between June 2009 and November 2014 who underwent PBPV as initial procedures were respectively studied. We analyzed their clinical features, the immediate and short-term outcome of PBPV, and evaluated the risk factors for reintervention.
Assessment of ventricular dysfunction and asynchrony is very important in predicting the outcome for children with a single right ventricle. However, the assessment is inaccurate and subjective because of the unusual ventricular shape. This study aimed to evaluate the feasibility and clinical value of velocity vector imaging for assessing longitudinal systolic ventricular dysfunction and intraventricular asynchrony in children with a single right ventricle.
View Article and Find Full Text PDFA simple method is reported for the preparation of double-helical structures through a series of achiral random and block copolymers poly(styrene-co-4-vinylbenzyl triazolylmethyl methylthymine) (PS-co-PVBT) with various T units on the side chains through click reactions of poly(styrene-co-4-vinylbenzyl azide) (PS-co-PVBN(3)) with propargyl thymine (PT) and also the synthesis of the A-appended pyrene derivative (A-Py) through click chemistry. This double-helical structure is observed from achiral random-coil polystyrene (PS) main chains, stabilized through the combination of multiple A-T hydrogen bonds, and π-π stacking between pyrene units and single-walled carbon nanotubes (SWCNTs).
View Article and Find Full Text PDFZhongguo Dang Dai Er Ke Za Zhi
June 2011
Objective: Anthracyclines (ANT) are effective for leukemia and solid tumors. However the long-term life quality of patients is seriously affected by ANT-related cardiotoxicity. The aim of this study was to evaluate the value of two dimension echocardiography (2DE) and serum biochemical indicators in monitoring ANT-related cardiotoxicity.
View Article and Find Full Text PDFGuang Pu Xue Yu Guang Pu Fen Xi
September 2009
The light yield of the as-grown PbWO4, annealed PbWO4 and BaF2:PbWO4 crystals were raised by utilizing our improved crystal growth instrument and technique. Their scintillating properties including transmittance, decay time and light yield were studied. Results reveal that the scintillating performances of the crystals were improved evidently by using the crystal annealing technique and the ions doping technique, especially the negative ions doping technique.
View Article and Find Full Text PDFGuang Pu Xue Yu Guang Pu Fen Xi
February 2007
A batch of potassium lithium niobate (KLN) crystals with different compositions were grown by using TSSG technique. Samples with three different compositions were well polished. By using near infrared cw:Ti-sapphire laser, their Second Harmonic Generation (SHG) properties were investigated.
View Article and Find Full Text PDFObjective: To improve the accuracy of diagnosis of heart failure (HF) has been the focus of research for a long time. The diagnosis for HF with congenital heart disease, however, is more difficult. The aim of the study was to evaluate the diagnostic criteria for HF in children and examine the value of plasma brain natriuretic peptide (BNP) and NT-proBNP for diagnosing HF in pediatric patients with congenital heart disease, and to look for the most valuable index for the diagnosis according to the multifactor analysis.
View Article and Find Full Text PDFObjective: The value of plasma brain natriuretic peptide (BNP) and N-terminal proBNP (NT-proBNP) can reflect cardiac function and therefore can be used for diagnosing congestive heart failure (CHF) and evaluating cardiac function. There are few reports, however, on the value of BNP and NT-proBNP in pediatric cases of congenital heart defect. The aim of this study was to assess the value of plasma NT-proBNP in the diagnosis of CHF and evaluation of cardiac function in pediatric patients with ventricular septal defect (VSD).
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