Globally, nations are increasingly focusing on green innovation in their environmental protection efforts as part of sustainable development, and digital finance is playing a vital role in enhancing ...green innovation. Employing annual data from 220 prefecture-level cities between 2011 and 2019, we empirically analyze the connections among environmental performance, digital finance, and green innovation via the Karavias panel unit root test with structural breaks, the Gregory-Hansen structural break cointegration test and pooled mean group (PMG) estimation. The following four points are the key conclusions: (1) The results support cointegration links between these variables when structural breaks are considered. (2) The PMG estimation outcomes indicate that green innovation and digital finance may have a favorable long-term effect on environmental performance. (3) For better environmental performance and more green innovation, the level of digitalization of digital finance is crucial. (4) The potential of digital finance and green innovation to improve environmental performance has not been fully realized in the western region of China.
•The relationship among environmental performance, green innovation, and digital finance is investigated.•The entropy method is used to evaluate the environmental performance.•Green innovation benefits environmental performance in the long run.•Digital finance improves environmental performance through providing financial support to green innovation.•There is cointegration relationship among the three variables after considering structural breaks.
Spintronics has captured a lot of attention since it was proposed. It has been triggering numerous research groups to make their efforts on pursuing spin-related electronic devices. Recently, ...flexible and wearable devices are in a high demand due to their outstanding potential in practical applications. In order to introduce spintronics into the realm of flexible devices, we demonstrate that it is feasible to grow epitaxial Fe3O4 film, a promising candidate for realizing spintronic devices based on tunneling magnetoresistance, on flexible muscovite. In this study, the heteroepitaxy of Fe3O4/muscovite is characterized by X-ray diffraction, high-resolution transmission electron microscopy, and Raman spectroscopy. The chemical composition and magnetic feature are investigated by a combination of X-ray photoelectron spectroscopy and X-ray magnetic circular dichroism. The electrical and magnetic properties are examined to show the preservation of the primitive properties of Fe3O4. Furthermore, various bending tests are performed to show the tunability of functionalities and to confirm that the heterostructures retain the physical properties under repeated cycles. These results illustrate that the Fe3O4/muscovite heterostructure can be a potential candidate for the applications in flexible spintronics.
Abstract
Dental implants are commonly used to repair missing teeth. The implant surface plays a critical role in promoting osseointegration and implant success. However, little information is ...available about which implant surface treatment technology best promotes osseointegration and implant stability. The aim of this network meta-analysis was to evaluate the osseointegration and stability of four commonly used dental implants (SLA, SLActive, TiUnite, and Osseotite). The protocol of the current meta-analysis is registered in PROSPERO (International Prospective Register of Systematic Reviews) under the code CRD42020190907 (
https://www.crd.york.ac.uk
). We conducted a systematic review following PRISMA and Cochrane Recommendations. Medline (PubMed), Cochrane Library, Embase, and the Web of Science databases were searched. Only randomized controlled trials were considered. Twelve studies were included in the current network meta-analysis, eleven studies were included concerning the osseointegration effect and five studies were included for stability analysis (four studies were used to assess both stability and osseointegration). Rank possibility shows that the SLActive surface best promoted bone formation at an early healing stage and TiUnite seemed to be the best surface for overall osseointegration. For stability, TiUnite seemed to be the best surface. The present network meta-analysis showed that the SLActive surface has the potential to promote osseointegration at an early stage. The TiUnite surface had the best effect on osseointegration regarding the overall healing period. The TiUnite surface also had the best effect in stability.
This research examines the impact of economic policy uncertainty (EPU) on green innovation by using the panel fixed effects model from 2000 to 2017 for the samples of 31 provinces in China. The ...general conclusion is that there exists a positive link from EPU to green innovation, and that the impact of EPU varies significantly among different provinces that have diverse levels of marketization and trade openness. Specifically, provinces with higher marketization and degrees of trade openness have witnessed stronger positive effects from EPU on green innovation, whereas the correlation is rather weak in regions with low levels of those two factors. Our findings serve as a research reference for how governments may boost green innovation in the face of increasing EPU.
Multiferroics—materials that exhibit coupled ferroic orders—are considered to be one of the most promising candidate material systems for next‐generation spintronics, memory, low‐power ...nanoelectronics and so on. To advance potential applications, approaches that lead to persistent and extremely fast functional property changes are in demand. Herein, it is revealed that the phase transition and the correlated ferroic orders in multiferroic BiFeO3 (BFO) can be modulated via illumination of single short/ultrashort light pulses. Heat transport simulations and ultrafast optical pump‐probe spectroscopy reveal that the transient strain induced by light pulses plays a key role in determining the persistent final states. Having identified the diffusionless phase transformation features via scanning transmission electron microscopy, sequential laser pulse illumination is further demonstrated to perform large‐area phase and domain manipulation in a deterministic way. The work contributes to all‐optical and rapid nonvolatile control of multiferroicity, offering different routes while designing novel optoelectronics.
All‐optical manipulation of the complex phases and domain structures in multiferroic BiFeO3 thin films on ultrafast timescale is demonstrated by adoption of extremely short light pulses. The configuration of large‐area optically written domains can be controlled by tuning the competing elastic and electrostatic energies. These results offer a novel route for the development of all‐optical switchable devices and high‐speed multifunctional optoelectronics.
Environmental, social, and governance (ESG) performance has increasingly become the most pressing concern for governments, social organizations, companies, and other stakeholders. Understanding macro ...ESG behavior can assist governments in achieving their sustainable development goals (SDGs). In this paper, we investigate whether the macro ESG index of OPEC and non‐OPEC oil‐producing countries over the period 1990–2020 exhibits mean‐reversion behavior and whether the external shocks are transient or permanent. By conducting a series of advanced panel stationarity tests, we find that the macro ESG indices of the sample countries do not exhibit mean‐reversion and that an external shock has a permanent effect. We also identifies the yearly structural breaks that occur in the sample countries and attempts to explain why. Our research suggests that governments should use policy interventions to counteract external shocks to macro ESG behavior so as to achieve sustainable development and long‐term performance stability.
The deubiquitylase OTUD3 plays a suppressive role in breast tumorigenesis through stabilizing PTEN protein, but its role in lung cancer remains unclear. Here, we demonstrate that in vivo deletion of ...OTUD3 indeed promotes breast cancer development in mice, but by contrast, it slows down Kras
-driven lung adenocarcinoma (ADC) initiation and progression and markedly increases survival in mice. Moreover, OTUD3 is highly expressed in human lung cancer tissues and its higher expression correlates with poorer survival of patients. Further mechanistic studies reveal that OTUD3 interacts with, deubiquitylates and stabilizes the glucose-regulated protein GRP78. Knockdown of OTUD3 results in a decrease in the level of GRP78 protein, suppression of cell growth and migration, and tumorigenesis in lung cancer. Collectively, our results reveal a previously unappreciated pro-oncogenic role of OTUD3 in lung cancer and indicate that deubiquitylases could elicit tumor-suppressing or tumor-promoting activities in a cell- and tissue-dependent context.
A highly sensitive photoelectrochemical (PEC) biosensor without external bias was developed in this study. The biosensor was configured with a p-Cu2O and n-ZnO heterostructure. Hexamethylenetetramine ...(HMTA) and poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) was used to improve the crystal structure of Cu2O and ZnO and reduce the defects in the Cu2O/ZnO interface. This fabrication method provided the highly crystallized Cu2O/ZnO structure with excellent electrical property and photoresponse in visible light. The structure was applied to a biosensor for detecting two different cancerous levels of esophageal cells, namely, OE21 and OE21-1, with a high gain in photocurrent (5.8 and 6.2 times, respectively) and a low detection limit (3000 cells in 50 μL). We believe that such a p-n heterojunction PEC biosensor could advance biosensor development and provide a promising candidate for biomedical applications.
Epitaxial growth is of significant importance over the past decades, given it has been the key process of modern technology for delivering high-quality thin films. For conventional heteroepitaxy, the ...selection of proper single crystal substrates not only facilitates the integration of different materials but also fulfills interface and strain engineering upon a wide spectrum of functionalities. Nevertheless, the lattice structure, regularity and crystalline orientation are determined once a specific substrate is chosen. Here, we reveal the growth of twisted oxide lateral homostructure with controllable in-plane conjunctions. The twisted lateral homostructures with atomically sharp interfaces can be composed of epitaxial "blocks" with different crystalline orientations, ferroic orders and phases. We further demonstrate that this approach is universal for fabricating various complex systems, in which the unconventional physical properties can be artificially manipulated. Our results establish an efficient pathway towards twisted lateral homostructures, adding additional degrees of freedom to design epitaxial films.
This study examines the effect of government ideology on carbon dioxide emissions along the entire length of the conditional distribution of the dependent variable (i.e., carbon dioxide emissions) ...using the instrumental variable quantile regression technique with fixed effects in a balanced panel of 65 countries over the period of 1981–2012. The estimation results indicate that government ideology is a significant determinant of carbon dioxide emissions only in the lower quantiles of the distribution. Specifically, the left-wing governments are associated with lower carbon dioxide emissions among the least polluted countries. Contrarily, the effect of government ideology on carbon dioxide emissions is statistically insignificant in the median and upper quantiles of the distribution, suggesting that government ideology does not have significant influences on carbon dioxide emissions among the median and most polluted nations. It was also found that the effects of government ideology on carbon dioxide emissions differ remarkably at different quantiles of the distribution in developed and developing countries.
•The effect of government ideology on carbon dioxide emissions is investigated.•The instrumental variable quantile regression technique with fixed effects is employed.•A balanced panel of 65 countries over the period of 1981–2012 is used.•Government ideology affects CO2 emissions significantly only when the emissions are low.•The effects of government ideology on CO2 emissions differ remarkably in different countries.
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