Cross-notation knowledge of rational numbers predicts fraction arithmetic.

Background: Recent research showed that cross-notation magnitude knowledge of fractions and decimals was related to better performance in fraction arithmetic, but it remains unclear whether it made an independent contribution to fraction arithmetic longitudinally when other cognitive variables are considered.

Aims: To examine the extent to which children's earlier knowledge of cross-notation magnitude predicted subsequent performance in fraction addition and subtraction as well as fraction multiplication and division longitudinally.

Sample: Three hundred and fifty-four Chinese children (M = 112.

Weight stigma from romantic partners: Its relations with maladaptive and adaptive coping and depressive symptoms.

Social devaluation of being overweight is common in daily life, but little is known about the weight stigma in romantic relationships. The present study investigated the roles of maladaptive and adaptive coping strategies in the relation between the experience of weight stigma in romantic relationships and depressive symptoms in men and women, respectively. Analyses of gender differences and structural equation modeling yielded several findings.

Patients Older Than 75 Years Undergoing Polysegmental Lumbar Fusion Surgery Can also Benefit from Enhanced Recovery After Surgery Program.

Purpose: To compare pain scores (visual analog scale) on postoperative days 1-3 and length of stay after implementing enhanced recovery after surgery (ERAS) in elderly patients undergoing multi-segments lumbar fusion surgery.

Methods: We performed a retrospective analysis of prospectively collected data, patients older than 75 years were enrolled in the study. We selected two periods, before (Pre-ERAS, n =54 patients) and after (ERAS, n =46 patients) implementation of ERAS.

An IPVO-based reversible data hiding scheme using floating predictors.

This work optimizes an improved high-fidelity reversible data hiding scheme of Peng et al. which is based on improved pixel-value-ordering (IPVO) and prediction-error expansion. In Peng et al.

Host protein CD63 promotes viral RNA replication by interacting with human astrovirus non-structural protein nsP1a/4.

Human astrovirus non-structural protein nsP1a/4, located at the C-terminal end of nsP1a, is thought to be involved in regulating RNA replication. Here, we show that host protein CD63 interacts with the nsP1a protein. Further research showed that the large loop (LEL) domain of CD63 also interacts with nsP1a/4.

Laparoscopic versus open treatment of gallbladder cancer: A systematic review and meta-analysis.

Background: The aim of this review was to evaluate the effect of laparoscopic surgery on the treatment of patients with gallbladder cancer (GBC).

Methods:: A comprehensive search of Medline and Cochrane Library was conducted to identify relevant articles. A meta-analysis was subsequently performed.

Thin TiO layer as a voltage divider layer located at the quasi-Ohmic junction in the Pt/TaO/Ta resistance switching memory.

TaO has been an appealing contender for the resistance switching random access memory (ReRAM). The resistance switching (RS) in this material is induced by the repeated formation and rupture of the conducting filaments (CFs) in the oxide layer, which are accompanied by the almost inevitable randomness of the switching parameters. In this work, a 1 to 2 nm-thick Ti layer was deposited on the 10 nm-thick TaO RS layer, which greatly improved the RS performances, including the much-improved switching uniformity.

Bias-polarity-dependent resistance switching in W/SiO2/Pt and W/SiO2/Si/Pt structures.

SiO2 is the most significantly used insulator layer in semiconductor devices. Its functionality was recently extended to resistance switching random access memory, where the defective SiO2 played an active role as the resistance switching (RS) layer. In this report, the bias-polarity-dependent RS behaviours in the top electrode W-sputtered SiO2-bottom electrode Pt (W/SiO2/Pt) structure were examined based on the current-voltage (I-V) sweep.

Symmetry forbidden vibronic spectra and internal conversion in benzene.

The spectra of symmetry-forbidden transitions and internal conversion were investigated in the present work. Temperature dependence was taken into account for the spectra simulation. The vibronic coupling, essential in the two processes, was calculated based on the Herzberg-Teller theory within the Born-Oppenheimer approximation.

Mechanism of myocardial microvessel formation in cyanotic congenital heart disease.

Background: Patients with cyanotic congenital heart disease (C-CHD) usually have myocardial thickening and fibrosis, both of which can affect the course of surgical management. Hypoxia and ischemia may stimulate microvessel formation in the myocardium, which may accelerate the myocardial thickening and fibrosis. Whether hyperplasia of microvessels occurs in the myocardium of C-CHD was investigated in this report.