This study investigates the detrimental influence of COVID-19 pandemic on corporate innovation persistence and explores mitigating effect digital transformation by using Chinese A-share listed companies from 2011 to 2021. We find that engenders a reduction in persistence. However, higher degree effectively alleviates this through three mechanisms: alleviating financial constraints, maintaining business stability, improving investment efficiency. Our findings contribute literature concerning...

Inhibiting α-glucosidase activity is important in controlling postprandial hyperglycemia and, thus, helping to manage type-2 diabetes mellitus (T2DM). In the present study, free polyphenols (FPE) and bound (BPE) were extracted from red quinoa their inhibitory effects on glucose, as well related mechanisms, investigated. HPLC-MS analysis showed that components of FPE BPE different. was mainly composed hydroxybenzoic acid its derivatives, while ferulic derivatives. exhibited stronger DPPH ABTS...

This paper explores the spillover effect of proactive preventive regulation represented by R&D expense inquiry letters (hereafter, RDILs) and its impact mechanism. Using deterrence theory Chinese A-share listed firms from 2015–2020, we find that industry receiving RDILs has a on investment intensity catering motive non-receiving in industry. That is, there is an regulation. The results regulatory mechanism analysis show more pronounced for with severe manipulation or weaker product market...

There are information transfer motives and earnings management for the disclosure of R&D expense information. These two contradict each other, which can cause distortion corporate lead to mispricing In this paper, we investigate market reaction inquiry letters (hereafter, RDILs) their impact mechanism from perspective correcting by using Chinese A-share listed companies 2015 2019. We find that RDILs have a significantly negative reaction, suggesting they additional content. Mechanism...

Clay is a globally abundant material and can potentially be used as cement substitute after calcination. Though kaolinitic clay exhibits notable reactivity, the potential of low-grade with relatively low kaolinite content remains underexplored. This study comprehensively analyzed chemical mineralogical composition marine clays at various locations depths in Singapore, assessing their feasibility for preparing limestone calcined (LC3). The hydration kinetics microstructure development LC3...

The conductive paths (CPs) established by defects in halide perovskites (HPs) tend to be disrupted under external influences, leading deterioration of their RRAM performances. Here we propose an effective strategy enhance the CPs HP RRAMs doping Ag+ partially substitute Pb2+ MAPbI3, which facilitates nonlocalized growth Ag and thereby improves stability CPs. optimal doped device demonstrates excellent performances including high ON/OFF ratios (>107), long retention (>105 s), large endurance...

The main challenge of cassava-based biobutanol production is to enhance the simultaneous saccharification and fermentation with high hyperamylolytic activity butanol yield. Manipulation cofactor [e.g., Ca(2+) NAD/(P)H] levels as a potential tool modulate carbon flux plays key role in cassava hydrolysis capacity productivity. Here, we aimed develop technology for enhancing (a typical model non-cereal starchy material) using cofactor-dependent modulation method maximize efficacy by Clostridium...

Polyphenols were reported to exhibit inhibitory effects on digestive enzymes regulate carbohydrates and lipid digestion. However, different cooking methods might cause differences in the composition of polyphenols cereal grains thus further affect their activities.The present study used boiling, roasting microwaving cook black quinoa extracted from them. Their total phenolic content (TPC) flavonoids determined, was analyzed via high-performance liquid chromatography-mass spectrometry...

An iodine-promoted one-pot cascade oxidative annulation reaction has been developed for the synthesis of chromone-fused-pyrrolo[2,1-a]isoquinolines and indolizino[8,7-b]indoles from o-acetylphenoxyacrylates, tetrahydroisoquinolines, noreleagnines. This process underwent a logical approach to both chromone-fused-indolizino[8,7-b]indoles isolamellarin derivatives. Manipulations l-menthol dl-α-tocopherol demonstrate applications this strategy.

Calcium silicate hydrate (C-S-H) governs the binding of cement-based materials, influencing various properties through its microstructure. However, understanding C-S-H's microstructure development and morphological evolution mechanisms remains incomplete. This study systematically investigated both outer inner C-S-H gel in real cement pastes using high-resolution scanning electron microscopy. For first time, we reported from one-dimensional needle-like morphology to three-dimensional...

Abstract Companies can use both debt and non‐debt tax shields to accomplish avoidance. Using a quasi‐experiment in China which the government implemented deleveraging regulations selected industries 2015, this study provides novel evidence of effect mandatory on corporate The results show that implementing leads an increase degree Mechanism analyses indicate curbs company's inclination take advantage benefits debt, but increases its tendency using shields, suggesting companies will as...

Lignocellulosic biomass has great potential for use as a carbon source the production of second-generation biofuels by solventogenic bacteria. Here we describe butanol newly discovered wild-type Clostridium species strain G117 with xylan sole fermentation. Strain produced 0.86 ± 0.07 g/L and 53.4 0.05 mL hydrogen directly from 60 provided that had undergone no prior enzymatic hydrolysis. After process optimization, amount was increased to 1.24 0.37 g/L. In contrast traditional...

Clay is a globally abundant material and can potentially be used as cement substitute after calcination. Kaolinitic clay, rich in kaolinite, exhibits notable reactivity, but the potential of clay with lower kaolinite content remains underexplored. This study comprehensively analyzed chemical mineralogical composition marine clays at various locations depths Singapore, assessing their feasibility for preparing limestone calcined (LC3). The hydration kinetics microstructure development LC3...

This paper proposed a control strategy for grid-interactive inverter operating in stand-alone and grid-connected modes. method has two outer loops one inner loop. The principle of the design parameters are analyzed. Using this strategy, seamless transfer can be achieved between modes, detailed process modes is illustrated. A 500 W dual buck half-bridge developed based on DSP control. experimental results verify analysis.

Abstract We examine the determinants of high‐interest entrusted loans in China from perspective corporate risk‐taking. The results a baseline model illustrate that propensity to offer increases with loose monetary policies, cash holdings and firm age, it decreases size growth opportunity. These findings support claim firms mainly for short‐term profits. Other determining factors include CEO behavior traits, market imperfections intensity governance. Specifically, create an opportunity...