Semi-Alicyclic Dipolar Glass Dielectric Polymer Capacitors for Superior High-Temperature Capacitive Energy Storage.

Ultrahigh-power-density metallized film capacitors at elevated temperatures and electric field extremes are key components in electrical and electronic systems. The miniaturization, integration, and cost-effectiveness of the systems demand high-energy-density, high-efficiency, and reliable dielectrics. A major challenge is to concurrently break multiple paradoxes of bandgap (E) with glass transition temperature (T), dielectric constant (ɛ) with E and self-healing capability with T.

PNPLA7 mediates Parkin-mitochondrial recruitment in adipose tissue for mitophagy and inhibits browning.

PINK1/Parkin-mediated ubiquitin-dependent mitophagy is a critical negative regulatory machinery for browning in the inguinal white adipose tissue (iWAT). However, the precise regulatory mechanism underlying PINK1/Parkin-mediated mitophagy during browning of iWAT remains largely unknown. Here we report that PNPLA7, an Endoplasmic Reticulum and mitochondria-associated membrane (MAM) protein, inhibits browning of iWAT by promoting PINK1/Parkin-mediated mitophagy upon cold challenge or β3-adrenergic receptor agonist treatment.

Stable and uniform self-assembled organic diradical molecules for perovskite photovoltaics.

Organic self-assembled molecules (SAMs), which are widely used in perovskite solar cells (PSCs), should exhibit enhanced performance to support the ongoing advancement of perovskite photovoltaics. We designed diradical SAMs through a coplanar conjugation of a donor-acceptor strategy to facilitate hole transport across the SAMs. The diradical SAMs exhibited high photothermal and electrochemical stability as well as improved assembly uniformity and large-area solution processability attributed to molecular steric hindrance design.

Hydrochemical evolution and nitrate sources, migration, and transformation in surface water and groundwater of a typical tributary of the Yellow River.

Nitrate pollution poses a severe threat to ecological security and the sustainable utilization of water resources. Accurately identifying its sources and transformation processes is crucial for water quality protection. This study investigated the hydrochemical evolution, nitrate sources, and transformation mechanisms in surface water and groundwater within the Dahei River Basin, a typical tributary of the Yellow River, across wet and dry seasons.

Morphotropic Phase Boundary in Irradiated Ferroelectric Polymers.

Morphotropic phase boundary (MPB) enables a large piezoelectric effect in ferroelectric polymers. However, till now MPB has only been observed in a few polymers, which is induced by compositional tuning of the polymer composition. Here a distinct approach to design MPB in ferroelectric polymers is reported via ion irradiation.

A review of biodegradability of natural rubber products: Physicochemical, thermal and mechanical properties.

Natural rubber latex (NRL) is a biopolymer consisting of isoprene monomers in a cis configuration connected by double bonds that can degrade naturally. Most natural rubber (NR) based products are single-use items and its microbial degradation process is relatively slow. Hence, this review highlights the importance in the enhancement of biodegradation of NR, the methods applied to increase the biodegradation rate, and characterization of biodegradation of rubber.

Prevalence and risk factors for hypertension among children and adolescents in Shaanxi province, Northwestern China, according to the three hypertension guidelines.

This study aimed to examine the prevalence and epidemiological characteristics of hypertension among children and adolescents aged 7-17 years in Shaanxi Province using three hypertension guidelines for children and adolescents. Data from the 2023 Shaanxi Student's Health Surveillance Survey were used. Hypertension was defined according to three references, namely, the 2018 National Health Commission of the China (NHCC) pediatric blood pressure reference, the 2017 American Academy of Pediatrics (AAP) clinical practice guidelines, and the 2016 European Society of Hypertension guidelines (ESH).

The fate of cadmium during the hydrolysis and solid-state transformation of iron.

The ubiquitous hydrolysis of Fe(III) ions in nature leads to the formation of ferrihydrite (Fh), which then undergoes solid-state transformation into crystalline mineral phases. However, the impact of this process on the geochemical fate of cadmium (Cd) in aquatic environments is not yet fully understood. This investigation systematically examined the partitioning mechanisms of Cd during the aforementioned processes through extraction techniques and multiple characterization methodologies.

A Novel Approach to Fabricate Early Keratoconus Phantom Models.

Purpose: To develop a method to fabricate early keratoconus phantom models and evaluate the feasibility of using corneal models for studying the dynamic response of early keratoconus under an air puff.

Methods: A corneal mold was designed, and the silicone material was poured into the mold to produce corneal phantoms. Two types of early keratoconus phantoms with reduced mechanical properties in a specific area were prepared using a two-step molding process: the central keratoconus phantom and the paracentral keratoconus phantom.

Watt-level multi-gigahertz-repetition-rate femtosecond optical parametric oscillator.

A watt-level multi-gigahertz (GHz) repetition-rate femtosecond optical parametric oscillator (OPO) synchronously pumped by a GHz-repetition-rate Kerr-lens mode-locked Yb:CYA laser is demonstrated in this letter. The output signal had a wavelength tuning range from 1.41 to 1.

Pseudomonas aeruginosa community-acquired pneumonia following soil ingestion: A case report.

Background: Pseudomonas aeruginosa (P. aeruginosa) is an uncommon etiological agent in community-acquired pneumonia (CAP), typically associated with nosocomial or healthcare-associated infections, particularly in patients with underlying structural lung abnormalities or immunosuppression. P.

Through-space charge-transfer polybenzonorbornenes with thermally activated delayed fluorescence and full-color piezochromism.

Through-space charge-transfer polybenzonorbornenes, consisting of a carbazole donor and dimesitylboron acceptor in the -positions of phenyl units on the benzonorbornene repeating unit, have been developed, revealing efficient thermally activated delayed fluorescence emission and full-colorpiezochromism.

Tissue-specified reconstruction modeling of the head and neck structure and its application in simulating airway obstruction.

Background And Objective: Three-dimensional (3D) reconstruction of head and neck tissues has extensive clinical applications, but due to the complexity and variability of tissue structure, there is still a lack of a complete scheme to reconstruct the head and neck tissues. This study aims to establish a tissue-specified multi-directional cross-sectional image sequence construction method to capture diverse tissue contour information.

Methods: The image sequences that are most conducive to acquiring the boundary contours of the target tissue are constructed from 3D MRI images of the head and neck in a non-traditional way based on the characteristics of each target tissue, and an effective registration strategy is used to integrate the boundaries of the target tissue segmented from multiple image sequences.

[Spatial and Temporal Characteristics and Controlling Factors of Water Quality of the Dahei River in the Yellow River Basin].

As an important ecological security barrier and an economic core belt for population activities, the Yellow River Basin plays an important role in China's social development and ecological security. To investigate the spatial and temporal changes in the water environmental quality of typical tributaries in the basin and the factors affecting them, this study was based on 12 aspects of water environmental data and month-by-month rainfall and runoff data from 21 monitoring stations in the Dahei River Basin from 2013 to 2022. The entropy-weighted water quality index （EWQI）, stepwise multiple linear regression, hierarchical cluster analysis, and Pearson correlation analysis were used to comprehensively assess the changes in the water quality of the basin and to investigate the factors controlling the water quality.

How aging microplastics influence heavy metal environmental fate and bioavailability: A systematic review.

Microplastics (MPs) are now pervasive in the environment, with annual emissions estimated to range from 10 to 40 million metric tons. Aging (weathering) processes induced by environmental changes, gradually degrade MPs into smaller particles with higher surface reactivity. These particles readily adsorb surrounding heavy metals (HMs), forming complex pollutants.

Assessment of Residual [Tc]Tc-Tetrofosmin Activity in Routine Nuclear Medicine Practice at Hospital Kuala Lumpur.

Myocardial perfusion imaging using the radiopharmaceutical [Tc]Tc-tetrofosmin plays a crucial role in diagnosing cardiac conditions. However, variations in the residual activity of [Tc]Tc-tetrofosmin in plastic syringes after administration may impact imaging quality and patient safety. This study aimed to evaluate the residual activity of [Tc]Tc-tetrofosmin in plastic syringes after administration during routine nuclear medicine procedures at Hospital Kuala Lumpur, assessing compliance with department protocols and variability among different syringe brands.

Exploring the influence of living arrangements on mental health among adolescents during the COVID-19 pandemic: a cross-sectional study in China.

Background: Although scholars have extensively explored the impact of parents on the mental health of children and adolescents during the COVID-19 pandemic, the role of living arrangements has not received sufficient attention. Furthermore, the previous studies do not investigate whether living with a father or a mother has differing impacts on the mental health of adolescents, nor does it explore potential differences between biological parents and step-parents in this regard.

Study Aims: This study aims to explore the impact of various living arrangements during the COVID-19 pandemic on the mental health of adolescents, with a particular focus on parental presence and family structure.

Assessment of wetland ecological restoration effect based on fuzzy analytic hierarchy process: a case study of Tianjin Qilihai Wetland.

Scientific evaluation of the effectiveness of ecological restoration could provide support for sustainable management and protection of wetlands. However, due to the multiple and difficult to quantify factors affecting wetlands, commonly used spatiotemporal evaluation methods were difficult to scientifically reflect the actual effectiveness of ecological restoration. This paper took Tianjin Qilihai Wetland, a representative wetland in northern China, as the research object.

An Oriented Interpenetrating Network Structure Multi-Stimuli Responsive Hydrogel.

As a recent focal point of research, soft electronics encompass various factors that synergistically enhance their mechanical properties and ensure stable electrical performance. However, challenges such as immiscible conductive fillers, poor phase interfaces, and unstable conductive networks hinder the overall efficacy of these materials. To address these issues, a hydrogel featuring an oriented interpenetrating network structure (OIPN) is developed.

Cavity-dumped femtosecond Yb:CALYO laser based on SESAM assisted Kerr-lens mode locking.

In this paper, we present the demonstration of a cavity-dumped Kerr-lens mode-locked femtosecond oscillator based on an Yb:CALYO crystal for the first time. With the assistance of an SESAM, the Kerr-lens mode-locked Yb:CALYO laser delivered pulses with an average power of 2.8 W at a repetition rate of 61.