Anti‐counterfeiting techniques have become a global topic since they is correlated to the information and data safety, in which multimodal luminescence is one of the most desirable candidates for ...practical applications. However, it is a long‐standing challenge to actualize robust multimodal luminescence with high thermal stability and humid resistance. Conventionally, the multimodal luminescence is usually achieved by the combination of upconversion and downshifting luminescence, which only responds to the electromagnetic waves in a limited range. Herein, the Yb3+/Er3+/Bi3+ co‐doped Cs2Ag0.6Na0.4InCl6 perovskite material is reported as an efficient multimodal luminescence material. Beyond the excitation of ultraviolet light and near‐infrared laser (980 nm), this work extends multimodal luminescence to the excitation of X‐ray. Besides the flexible excitation sources, this material also shows the exceptional luminescence performance, in which the X‐ray detection limit reaches the level of nGy s−1, indicating a great potential for further application as a colorless pigment in the anti‐counterfeiting field. More importantly, the obtained double perovskite features high stability against both humidity and temperature up to 400 °C. This integrated multifunctional luminescent material provides a new directional solution for the development of multifunctional optical materials and devices.
A Yb3+/Er3+/Bi3+ co‐doped Cs2Ag0.6Na0.4InCl6 double‐perovskite material shows multi‐modal luminescence under excitation by X‐rays, ultraviolet light, and near‐infrared laser light (980 nm), which also features high stability against humidity and high temperature (up to 400 °C). This luminescent material further extends the functionality and potential for future commercial applications in anti‐counterfeiting and X‐ray detection.
•A novel algal-bacterial consortia was developed in the aerobic granular system.•Targeted algae can maintain dominance in algal community of granular consortia.•Commensalism of targeted algae cannot ...weaken structural stability of aerobic granules.•Granular consortia show better nutrient removal ability and higher biodiesel yield.•Bacterial diversity of aerobic granules was enhanced by algal coupled process.
The characteristics and performance of algae-bacteria granular consortia which cultivated with aerobic granules and targeted algae (Chlorella and Scenedesmus), and the essential difference between granular consortia and aerobic granules were investigated in this experiment. The result indicated that algae-bacteria granular consortia could be successfully developed, and the algae present in the granular consortia were mainly Chlorella and Scenedesmus. Although the change of chlorophyll composition revealed the occurrence of light limitation for algal growth, the granular consortia could maintain stable granular structure, and even showed better settling property than aerobic granules. Total nitrogen and phosphate in the algal-bacterial granular system showed better removal efficiencies (50.2% and 35.7%) than those in the aerobic granular system (32.8% and 25.6%) within one cycle (6 h). The biodiesel yield of aerobic granules could be significantly improved by algal coupled process, yet methyl linolenate and methyl palmitoleate were the dominant composition of biodiesel obtained from granular consortia and aerobic granules, respectively. Meanwhile, the difference of dominant bacterial communities in the both granules was found at the order level and family level, and alpha diversity indexes revealed the granular consortia had a higher microbial diversity.
Rare-earth (RE) solid-state halide electrolytes have been extensively studied recently in the field of lithium (Li) ion all-solid-state batteries (ASSBs) due to their excellent electrochemical ...performances. Herein, a new RE-based solid halide electrolyte Li3HoBr6 (LHB) has been synthesized and exhibits high Li ion conductivity up to mS cm–1 at room temperature. Theoretical calculations have identified four different Li ion migration pathways, in which the out-of-plane pathways are much more favorable than the direct in-plane pathways. In addition, LHB has a wider electrochemical window in comparison to a sulfide solid electrolyte and good deformability. The LHB-based Li-sulfur ASSB assembled by cold pressing can exhibit good cycling stability with high Coulombic efficiency, which shows that LHB has potential application in ASSBs.
Promoting clinicians' knowledge sharing of appropriate health technology within the integrated care system (ICS) is of great vitality in bridging the technological gap between member institutions. ...However, the role of social networks in knowledge sharing of health technology is still largely unknown. To address this issue, the study aims to clarify the influence of clinicians' social networks on knowledge sharing of health technology within the ICS. A questionnaire survey was conducted among the clinicians in the Alliance of Liver Disease Specialists in Fujian Province, China. Social network analysis was conducted using NetDraw and UCINET, and the quadratic assignment procedure (QAP) multiple regression was used to analyze the influencing factors of knowledge sharing of health technology. The results showed that the ICS played an insufficient role in promoting overall knowledge sharing, especially inter-institutional knowledge sharing. Trust, emotional support, material support, and cognitive proximity positively influenced knowledge sharing of health technology, while the frequency of interaction and relationship importance had a negative impact on it. The finding extended the research scope of social network theory to the field of healthcare and will bridge the evidence gap in the influence of the clinicians' social networks on their knowledge sharing within the ICS, providing new ideas to boost knowledge sharing and diffusion of appropriate health technology.
Abstract
Background
The promotion of early diagnosis is undoubtedly effective in reducing the burden of disease. Contrast-enhanced ultrasound (CEUS) is a diagnostic technology for liver cancer, but ...its implementation faces some challenges. Understanding the influencing factors of CEUS utilization is crucial for its successful implementation. However, such research is rare. The aims of this study were to investigate the status of CEUS utilization and its predictors in China.
Methods
Through multistage random sampling, a cross-sectional study design was conducted among physicians in charge of direct use of CEUS working at liver disease-related departments of sampled health institutions. To access the potential influencing factors of physicians' CEUS utilization, a structured questionnaire was developed based on the theoretical model, which was developed by integration of the Theory of Planned Behavior (TPB) and Technology Acceptance Model (TAM). Structural equation modeling was used to verify the proposed hypotheses, and analyze the relationship and mechanism between the factors.
Results
A total of 309 physicians were enrolled. The mean score of utilization behavior was 2.04 (SD = 1.07), and 37.22% above the mean. The favorable fitting results demonstrated that the integration of TAM and TPB was an acceptable model. SEM results also identified physicians’ intentions to use CEUS was directly associated with utilization behavior (
β
= 0.287,
P
< 0.001). Attitude (
β
= 0.272,
P
< 0.001), subjective norm (
β
= 0.172,
P
= 0.013), perceived behavioral control (
β
= 0.491,
P
< 0.001) and perceived usefulness (
β
= 0.108,
P
= 0.027) significantly influenced physicians’ intentions. Besides, subjective norm (
β
= 0.065,
P
= 0.021), perceived behavioral control (
β
= 0.141,
P
= 0.003), and perceived ease of use (
β
= 0.022,
P
= 0.033) indirectly affected physicians’ CEUS utilization.
Conclusions
The findings provide a reference for understanding the factors associated with physicians' utilization of CEUS. Additionally, the proposed measures such as building innovative and incentive environment, providing high quality and adequate training, etc., will help promote the utilization of CEUS, thereby increasing the detection rate of liver cancer, and improving the survival rate and the quality of life for liver cancer patients.
Chiral organic-inorganic hybrid metal halides (OIHMHs) have attracted broader scientific community recently in spin light-emitting diodes, and circularly polarized light-emitting diodes. However, the ...emission peaks of the reported chiral OIHMHs mainly locate in the visible region, and chiral OIHMH with ultraviolet (UV) circularly polarized luminescence (CPL) has been rarely reported. To fill this gap, cerium, a unique rare-earth (RE) element with tunable luminescence from UV to the visible region owing to the 4f-related electronic transition, was introduced to construct the first RE-based chiral OIHMHs,
R
/
S
-MCC. The chirality is successfully transferred from the chiral organic cations to the inorganic cerium chloride framework in
R
/
S
-MCC, as confirmed by the single crystal structures, circular dichroism, and CPL. The emission spectra of
R
/
S
-MCC are in the UV region, originating from the characteristic d-f transition of Ce
3+
, which making the Ce-based metal halides are ideal candidates towards CPL light sources in the UV region. Notably,
R
- and
S
-MCC are the first RE-based OIHMHs, also the first chiral metal-halides with UV CPL. Our work opens a new avenue for the development of the chiral OIHMH family towards RE-based chiral OIHMH. The RE-based chiral metal halides couple the unique and superior optical, electrical, magnetic, and spintronic properties of RE elements with chirality could accelerate the development of chiral optoelectronics and spintronics toward real applications.
Abstract
The scale-free gravothermal fluid formalism has long proved effective in describing the evolution of self-interacting dark matter halos with a constant dark matter particle cross section. ...However, whether the gravothermal fluid solutions match numerical simulations for velocity-dependent cross-section scenarios remains untested. In this work, we provide a fast mapping method that relates the constant-cross-section gravothermal solution to models with arbitrary velocity dependence in the cross section. We show that the gravothermal solutions after mapping are in good agreement with
Arepo
N
-body simulation results. We illustrate the power of this approach by applying this fast mapping method to a halo hosting a low-surface-brightness galaxy, UGC 128. We show that this fast mapping method can be used to constrain free parameters in a physically motivated cross-section model and illustrate the parameter space favored by the rotation curve measurement.
Improving the separation of photogenerated electron–hole pairs is considered an effective approach to enhance the photocatalytic activities. Herein, Cu nanoparticles (NPs) are loaded on N-doped ...graphitic carbon (NGC)/honeycomb-like carbon sphere (HCS), where HCSs is dispersed on the NGC layer, obtaining a novel NGC/HCS/Cu NPs (GCPC) hierarchical structure for photocatalytic hydrogen evolution under simulated sunlight. The intercalation of HCS as the interface mediator plays an important role in effectively enhancing the migration and separation of the hot electrons generated by the surface plasmon resonance (SPR) of Cu NPs for water photosplitting. Interestingly, the near-infrared photoluminescence for GCPC was observed under 500 nm light excitation. The optimized NGC/HCS/Cu NPs hierarchical structure reveals a remarkable photocatalytic H
2
evolution rate (2.721 mmol g
−1
h
−1
), which is much higher than those of NGC/Cu NPs (VCPC0.25) and carbonized carbon sphere/Cu NPs (GCC), and exhibits high stability after multiple photocatalytic cycles.
With inappropriate use of antimicrobials becoming a great public health concern globally, the issue of applying clinical practice guidelines (CPGs) to regulate the rational use of antimicrobials has ...attracted increasing attention. Taking tertiary general hospitals in China for example, this study aimed to identify factors to investigate the comprehensive influencing mechanism for physicians' intention to use CPGs on antimicrobials.
Based on the integration of Theory of Planned Behavior (TPB), Technology Acceptance Model (TAM), and Technology-Organization-Environment framework (TOE), a questionnaire survey was conducted covering potential determinants of affecting physicians' intentions to use CPGs on antimicrobials at the individual level (attitude, subjective norms and perceived risk), technical level (relative advantage and ease of use), and organizational level (top management support and organizational implementation). Data were collected from 644 physicians in tertiary general hospitals in eastern, central and western China, which were obtained by multi-stage random sampling. The structural equation modeling (SEM) was used to link three-level factors with physicians' behavioral intentions.
The majority of the participants (94.57%) showed a positive tendency toward intention to use CPGs on antimicrobials. The reliability and validity analysis showed the questionnaire developed from the theoretical model was acceptable. SEM results revealed physicians' intentions to use CPGs on antimicrobials was associated with attitude (β = 0.166, p < 0.05), subjective norms (β = 0.244, p < 0.05), perceived risk (β = - 0.113, p < 0.05), relative advantage (β = 0.307, p < 0.01), top management support (β = 0.200, p < 0.05) and organizational implementation (β = 0.176, p < 0.05). Besides, subjective norms, perceived risk, relative advantage, ease of use, and top management support showed their mediating effects from large to small on the intentions, which were 0.215, 0.140, 0.103, 0.088, - 0.020, respectively.
This study revealed the significance of multifaceted factors to enhance the intention to use CPGs on antimicrobials. These findings will not only contribute to the development of targeted intervention strategies on promoting the use of CPGs on antimicrobials, but also provide insights for future studies about physicians' adoption behaviors on certain health services or products.
PDF
