In the electrocatalytic nitrogen reduction reaction (NRR), (N

Feeding trials were conducted to determine the dietary level of yeast extract (YE) for replacing fish meal evaluating whether was superior intact as an alternative protein source shrimp Litopenaeus vannamei. The basal diet (control, D0, containing 25% meal), compared with five isonitrogenous and isoenergetic experimental diets [replacing 15% (D15), 30% (D30), 45% (D45), 60% (D60) or 100% (D100) in IYE]. digestibility, growth muscle composition measured. results showed that all replacement...

Developing an efficient catalyst that can reduce CO to economically viable products provides a pathway achieve carbon neutrality. For this purpose, we introduce and characterize boron phosphide nanotubes, class of materials allow one reach goal without costly toxic metal atoms. The tubular configuration imparts confining effect, facilitating adsorption catalytic reduction into ethanol. By calculating the transition state conditions under different charging using grand canonical potential...

Self-supporting Ni₄Mo–V₂O₃ nanosheets, which combine oxophilic V₂O₃ as a water dissociation center with Ni₄Mo proton recombination site, display an extremely low overpotential (39.3 mV at 10 mA cm⁻²) for hydrogen evolution neutral pH.

We aimed to investigate whether left ventricular (LV) twist analysis can detect the extent of myocardial fibrosis in patients with hypertrophic cardiomyopathy (HCM). This prospective case-control study recruited 81 consecutive HCM examined between January 2012 and April 2013. Data 76 were analyzed after excluding 5 whose echocardiographic images poor quality. Healthy volunteers (n = 46) served as controls. Both groups underwent comprehensive examination (i.e., Bas-Rotation, AP-Rotation,...

The myocardial wall of the left ventricle is a complex, multilayered structure and not homogenous. aim this study was to determine longitudinal strain (LS) in three layers normal pregnant women according gestation proceedings.The advanced two-dimensional speckle tracking echocardiography (2D STE) performed on 62 during each pregnancy trimester 6 9 weeks after delivery, while 30 age-matched, healthy, nonpregnant served as controls. LS endocardial, mid-myocardial epicardial at 18 cardiac...

Obstructive sleep apnea syndrome (OSAS) is the most common type of disorder which associated with a series cardiovascular disorders, including right ventricular (RV) dysfunction. However, it difficult to assess RV function systematically using conventional echocardiography because has complex geometrical shape. A case-control study was performed regional potential dysfunction in patients OSAS velocity vector imaging (VVI) from March 2014 October 2015. Sixty-nine were divided into 3 groups:...

Identifying the noise impedance is a key step to improve performance of an electromagnetic interference (EMI) filter. This paper proposes perturbation method measure and calculate unknowns under wide frequency range. Not only differential mode/common mode (DM/CM) impedances but also magnitude phase will be obtained at same time. Moreover, extraneous solution introduced by computation checked. In addition, profile infrastructure almost keeps different cases, it limit error measurement very...

Na–O2 batteries are promising candidates to replace Li–O2 for their excellent performance. However, the charge overpotential of is usually too high. In this work, we designed combinations MXene and a two-dimensional organic framework batteries. The results show that Ti2CO2/Cu-BHT has low OER ORR overpotentials 0.24 0.32 V, respectively. Besides this, conductivity adsorption energy Na+ (Eads(Na+)) promoted due transfer between layers. We also found negatively positively correlated with...

This study aimed to assess the changes of RA function in patients with obstructive sleep apnea syndrome (OSAS) using velocity vector imaging (VVI) and evaluate application VVI technology. According apnea–hypopnea index (AHI), 71 OSAS were divided into three groups: mild, moderate, severe. A total 30 cases healthy subjects enrolled as control group. Digital images apex four-chamber views acquired measure right atrium (RA) linear dimensions volume parameters including longitudinal diameter...

Objective A patent foramen ovale (PFO) is detected frequently by echocardiography. However, a thrombus trapped in PFO relatively rare. We herein describe rare case of 51-year-old patient with pulmonary embolism which large thrombus-in-transit through was found echocardiography and disappeared after treatment. Methods woman presented 1-week history chest tightness, unspecified pain, shortness breath. Echocardiography revealed increased artery pressure, very critical condition. Results The...

Right pulmonary artery to left atrial fistula ( RPA ‐ LAF ) is a rare cardiovascular anomaly. There were no systematic and detail represent by echocardiography. We chose the patients who diagnosed with at Fuwai Hospital from 2000 2010. All underwent clinical exanimation, chest roentgenogram, laboratory testing, electrocardiography, transthoracic echocardiography TTE ), contrast echocardiography, cardiac catheterization. In this article, we summarize characteristics of for diagnosing anomaly...

Objective: To evaluate the value of two-dimensional strain rate imaging (STE) in detecting alteration regionally left ventricular long-axis systolic function patients with slow coronary flow (SCF).Methods: 24 who were SCF but without significant artery stenosis LAD included anterior descending (LAD) group, and 15 right (RCA) RCA 20 or abnormal corrected thrombolysis myocardial infarction frame count (CTFC) control group.CTFC was carried on 3 groups.Peak (PSRs) measured at basal, middle...

Abstract Background Mitral regurgitation volume (MRvol) by quantitative pulsed Doppler (QPD) method previously recommended suffers from geometric assumption error because of circular mitral annulus (MA). Therefore, the aim this study was to evaluate impact different MA on assessment MRvol two-dimensional transthoracic echocardiographic QPD method. Methods This included 88 patients with varying degrees (MR). The evaluated using or ellipse MA. derived effective regurgitant orifice area real...