Transition metal phosphides (TMPs) are recognized as such promising supercapacitor materials for the practical application, due to their superior electrical conductivity and excellent redox activity. ...Here, self-supported three-dimensional NiCoP nanoparticles embedded in NiCoO
2
nanowires (NiCoO
2
/NiCoP) electrode consisting of nickel cobalt phosphides (NiCoP) with high activity and nickel cobalt oxides (NiCoO
2
) with good stability were fabricated by a hydrothermal and phosphorization method. The electrode integrates the advantages of nanowire arrays for fast ion transport and foam Ni for effective charge transport and flexibility. Benefitting the proper composition control of the nanohybrid and unique structure design, the optimized NiCoO
2
/NiCoP-20 exhibits a high specific capacitance of 3204 F·g
−1
at 1 A·g
−1
in 3 mol·L
−1
KOH aqueous electrolyte in a three-electrode system. Moreover, the asymmetric supercapacitor assembled with the prepared NiCoO
2
/NiCoP-20 and activated carbon achieves a specific capacitance of 116 F·g
−1
with a high energy density of 40.32 Wh·kg
−1
at the power density of 800.18 W·kg
−1
. The practical application is further demonstrated with all-solid-state winding supercapacitor devices, with decent flexibility, in series to light the Central South University (CSU) logo consisting of 21 red LED indicators.
Graphic abstract
The NiCoO
2
/NiCoP-20 combines the superior electrical conductivity and preeminent redox activity of NiCoP and excellent electrochemical stability of NiCoO
2
together, which performed the best electrochemical performance.
This study examines the link between proactive personality and creative behavior by focusing on employee thriving at work as a mediator. Data from 438 employees and their supervisors were collected ...and examined by conducting structural equation modeling. This analysis revealed that employee thriving at work fully mediates the relationship between proactive personality and creative behavior. Additionally, the results showed that the perceived presence of high-involvement human resources (HR) practices in the organization enhances the tendency of proactive individuals to thrive at work. The paper concludes with a discussion of the implications for theory and practice as well as on directions for future research.
Augmenter of liver regeneration (ALR) is an anti‐apoptotic protein found mainly in mitochondria. It protects hepatocytes from ischemia‐reperfusion (I/R) injury, but the underlying mechanism is not ...clear. We found that in rats, delivery of the ALR gene alleviated hepatic I/R injury during orthotopic liver transplantation as evidenced by reduced serum aminotransferase, oxidative stress and apoptosis, and increased expression of autophagy markers. In an in vitro hypoxia/reoxygenation (H/R) model, overexpression of the ALR gene activated autophagy and relieved defective mitophagy via the PINK1/Parkin pathway. Mechanistically, ALR transfection induced the expression of mitofusin 2 (Mfn2) in the H/R model, which led to PINK1 accumulation and mitochondrial translocation of Parkin. Deletion of Mfn2 abolished mitophagy activation induced by ALR transfection, promoted mitochondrial dysfunction, and eventually increased cell apoptosis. Mfn2 administration prevented the inhibition of mitophagy in ALR‐knockout (KO) cells, thus attenuated mitochondrial dysfunction and cell apoptosis. In heterozygous ALR‐knockout mice treated with a warm I/R injury, marked aggravation of liver injury was associated with mitophagy inhibition and reduction in Mfn2 expression. Taken together, our results confirm that ALR accelerated Parkin translocation and mitophagy via Mfn2, and protected hepatocytes from I/R‐induced injury. Our findings provide a novel rationale for the treatment of hepatic I/R injury.
Using an in‐vivo orthotopic liver transplantation model plus an in‐vitro experiment, the investigators show that administration of augmenter of liver regeneration alleviates ischemia/reperfusion injury by promoting PINK1/Parkin‐mediated mitophagy via upregulation of mitofusin 2, thereby maintaining mitochondrial homeostasis and preventing mitochondrial dysfunction.
Sustainable use of nanotechnology for agricultural practice requires an understanding of the plant's life cycle and potential toxicological impacts of nanomaterials. The main objective of this study ...was to compare the impact of TiO2 and ZnO nanoparticles of similar size (25 ± 3.5 nm) over a range of concentrations (0 to 1000 mg kg(-1)) on translocation and accumulation of nanoparticles in different plant sections; as well as to establish physiological impact on tomato plants. The results indicated that there is a critical concentration of TiO2 and ZnO nanoparticles upto which the plant's growth and development are promoted; with no improvement beyond that. Aerosol mediated application was found to be more effective than the soil mediated application on the uptake of the nanoparticles was in plants. A mechanistic description of nanoparticle uptake, translocation and resultant plant response is unraveled. The present investigation demonstrates the concept of nanoparticle farming by understanding plant - nanoparticle interaction and biodistribution.
We introduce
, the task of learning the acoustic and linguistic characteristics of a language from raw audio (no text, no labels), and a set of metrics to automatically evaluate the learned ...representations at acoustic and linguistic levels for both encoding and generation. We set up baseline systems consisting of a discrete speech encoder (returning pseudo-text units), a generative language model (trained on pseudo- text), and a speech decoder (generating a waveform from pseudo-text) all trained without supervision and validate the proposed metrics with human evaluation. Across 3 speech encoders (CPC, wav2vec 2.0, HuBERT), we find that the number of discrete units (50, 100, or 200) matters in a task-dependent and encoder- dependent way, and that some combinations approach text-based systems.
•Ecophronesis is the master skill par excellence of moral improvisation in ecological practice.•It is inspired and informed by human beings’ enlightened self-interest.•It is developed through ...reflective ecological practice.
This essay addresses three questions pertaining to the assertion that ecological wisdom connotes both Platonian sophia (theoretical wisdom) and Aristotelian phronesis (practical wisdom): What is Aristotelian phronesis in the context of ecological wisdom? Why should it be juxtaposed with sophia at the nexus of ecological wisdom? How relevant is it to the contemporary ecological practice (planning, design, construction, and management)? The essay posits the construct of ecophronesis (ecological phronesis) as the ecological practical wisdom that people acquire from and use for ecological practice; describes the relationship between ecophronesis and Naessian ecosophy (ecological theoretical wisdom); and explores the relevance of ecophronesis to ecological practice, and actionable science.
Spectral reflectance data, including irradiance reflectance (R t ) and remote sensing reflectance (R rs , sr -1 ), and colored dissolved organic matter (CDOM) absorption coefficients a CDOM (440), ...were collected in the Saginaw River and Kawkawlin River plume regions of Lake Huron. We developed an empirical band ratio algorithm to derive a CDOM (440) that could be directly applicable to Landsat-8 imagery. A model ranking method is used to determine the best band ratios as well as their empirical functions. One problem of previous CDOM estimations from Landsat imagery is that they usually use R t or R t /π rather than the real R rs as the input data, but as a result of our study, algorithms derived using R rs performed much better than using Rt. The green/red band ratio gave the best accuracies by fitting with power and exponential models (power model: R 2 = 0.819 and RMSE = 0.889 m -1 and exponential model: R 2 = 0.829 and RMSE = 0.863 m -1 ). The power and exponential models were further validated using an independent data group, achieving excellent results with the RMSE of 0.642 and 0.504 m -1 , respectively. The application of the exponential model a CDOM (440) = 40.75e -2.463x , x = R rs (B3)/R rs (B4) on two Landsat-8 images demonstrated that estimating CDOM from to Landsat-8 imagery has potential applications for monitoring water quality in long term and large scale.
Whether species demography and diversification are driven primarily by extrinsic environmental changes such as climatic oscillations in the Quaternary or by intrinsic biological interactions like ...coevolution between antagonists is a matter of active debate. In fact, their relative importance can be assessed by tracking past population fluctuations over considerable time periods.
We applied the pairwise sequentially Markovian coalescent approach on the genomes of 11 temperate Juglans species to estimate trajectories of changes in effective population size (N
e) and used a Bayesian-coalescent based approach that simultaneously considers multiple genomes (G-PhoCS) to estimate divergence times between lineages.
N
e curves of all study species converged 1.0 million yr ago, probably reflecting the time when the walnut genus last shared a common ancestor. This estimate was confirmed by the G-PhoCS estimates of divergence times. But all species did not react similarly to the dramatic climatic oscillations following early Pleistocene cooling, so the timing and amplitude of changes in N
e differed among species and even among conspecific lineages.
The population histories of temperate walnut species were not driven by extrinsic environmental changes alone, and a key role was probably played by species-specific factors such as coevolutionary interactions with specialized pathogens.
Semiconductors are the most widely used catalysts for CO2 photoreduction. However, their efficiencies are limited by low charge carrier density and poor CO2 activation. Towards solving these issues, ...a metal–organic framework (MOF)-based ternary nanocomposite was synthesized through self-assembly of TiO2/Cu2O heterojunctions via a microdroplet-based approach followed by in situ growth of Cu3(BTC)2 (BTC = 1,3,5-benzenetricarboxylate). With increased charge carrier density and efficient CO2 activation, the hybrid ternary nanocomposite exhibits a high CO2 conversion efficiency and preferential formation of CH4. Systematic measurements by using gas chromatography, photoluminescence spectroscopy, X-ray photoelectron spectroscopy, and time-resolved in situ diffuse reflectance infrared Fourier transform spectroscopy reveal that the semiconductor heterojunction and the coordinatively unsaturated copper sites within the hybrid nanostructure are attributable to the performance enhancements.
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