A real-time deep learning-based system for colorectal polyp size estimation by white-light endoscopy: development and multicenter prospective validation.

Background: The choice of polypectomy device and surveillance intervals for colorectal polyps are primarily decided by polyp size. We developed a deep learning-based system (ENDOANGEL-CPS) to estimate colorectal polyp size in real time.

Methods: ENDOANGEL-CPS calculates polyp size by estimating the distance from the endoscope lens to the polyp using the parameters of the lens.

Multiscale Convolutional Neural Network Based on Channel Space Attention for Gearbox Compound Fault Diagnosis.

Gearboxes are one of the most widely used speed and power transfer elements in rotating machinery. Highly accurate compound fault diagnosis of gearboxes is of great significance for the safe and reliable operation of rotating machinery systems. However, traditional compound fault diagnosis methods treat compound faults as an independent fault mode in the diagnosis process and cannot decouple them into multiple single faults.

Fluorescence quantification of inorganic particle dispersity for anti-aging evaluation of polymer composites.

We have developed a fluorescent quantification strategy to evaluate the uniformity and the aggregation degree of inorganic particles in polymers. This proposed strategy has been successfully used for investigating the anti-aging behaviors of composites.

Nutrition intervention in the management of novel coronavirus pneumonia patients.

In this study, we explored the effect of nutrition intervention on the management of patients with novel coronavirus pneumonia (NCP). A total of 28 NCP patients receiving therapy in Ningbo First Hospital (China) were enrolled in this study. The nutrition risk was assessed using the Nutritional Risk Screening (NRS)-2002 for the patients subjected to nutrition intervention provided by the Nutritional Department in Ningbo First Hospital, China.

Electrochemically Inert LiMnO: The Key to Improving the Cycling Stability of Li-Rich Manganese Oxide Used in Lithium-Ion Batteries.

Lithium-rich manganese oxide is a promising candidate for the next-generation cathode material of lithium-ion batteries because of its low cost and high specific capacity. Herein, a series of xLiMnO·(1 - x)LiMnO nanocomposites were designed via an ingenious one-step dynamic hydrothermal route. A high concentration of alkaline solution, intense hydrothermal conditions, and stirring were used to obtain nanoparticles with a large surface area and uniform dispersity.

The Post-verbal Effect of Negators in Mongolian Contradictory Negations Provides Support for the Fusion Model.

There are two contending models regarding the processing of negation: the and the . Most previous studies have centered on negation in languages such as English and Mandarin, where negators are positioned before predicates. Mongolian, quite uniquely, is a language whose negators are post-verbal, making them natural replicas of the schema-plus-tag model.

[Regulatory effect of Jinkui Shenqi Pills on the gene expression of the Nrf2 signaling pathway in cyclophosphamide-induced testis injury in mice].

Objective: To investigate the protective effect of Jinkui Shenqi Pills (JSP) against cyclophosphamide-induced testis injury (TI) and its anti-oxidation mechanism in mice.

Methods: Thirty male mice were equally divided into a blank control, a TI model control and a JSP treatment group. The mice in the JSP treatment group were treated intragastrically with JSP and the blank controls with normal saline at 1.

[Strategy of dental clinics to cope with the epidemic period of infectious diseases based on the experience of corona virus disease outbreak].

The outbreak of corona virus disease (COVID-19) has raised concerns among dentists to develop strategies to prevent infection of dental equipment, materials, and patients during an epidemic period. Strategies following the National Laws and Standards of China and local standards of several provinces for controlling cross-infection and instituting protective measures for medical staff in dental clinics during an epidemic period are discussed. A proposal is put forth for dental clinics that will face similar situations in the future.

Superoxide-Triggered Luminol Electrochemiluminescence for Detection of Oxygen Vacancy in Oxides.

Oxygen vacancy is known to act as a reactive center in oxides to produce radicals. Currently, X-ray photoelectron spectra (XPS) become a unique spectral tool for analyzing oxygen vacancy based on the differences in atomic number ratios between metal ions and lattice oxygen. In this work, it was found that the superoxide radical (O)-luminol electrochemiluminescence (ECL) intensity linearly increases with increasing the oxygen vacancy concentrations of TiO samples coated on the electrodes.

Rapid screening of the hydrogen bonding strength of radicals by electrochemiluminescent probes.

In this study, we discovered that a clear decrease in the electrochemiluminescence (ECL) intensities of luminol occurred upon increasing the electron donating capacity of amides. Therefore, herein, a novel ECL probe was used for the first time to screen the strength of the hydrogen bonds formed between HOO˙ radicals and amides. This proposed hydrogen bonding strength-sensitive ECL probe has a significant prospect in distinguishing the hydrogen bonding strength of different radicals.

Association of Helicobacter pylori infection with gastroesophageal reflux disease.

Objective: Many studies have shown that Helicobacter pylori ( Hp) is negatively correlated with gastroesophageal reflux disease (GERD). Moreover, some studies deny that eradication of Hp increases the incidence of GERD. Therefore, we investigated the association of Hp infection with GERD.

Synthesis of Ag Nanoparticles via "Molecular Cage" Method for Antibacterial Application.

Silver plate was found to prevent spoilage of foods thousands year ago and Ag nanoparticle is known to have great antibacterial activity. In this study, Ag nanoparticles with low than 10 nm average diameter were prepared in the present of glucose. A hypothetical "molecular cage" was built by glucose molecules in solution to limit the chemical reaction in a tiny space and to control the size and morphology of Ag nanoparticles.

The synthesis of super-small nano hydroxyapatite and its high adsorptions to mixed heavy metallic ions.

A "molecular cage" was possibly built in glucose alkaline solution to limit the chemical reaction in a tiny space to control the size and morphology of HA nanoparticles. A possible reaction mechanism of HA nanoparticles confined space synthesis was proposed in this work. The super-small HA nanoparticles were successfully obtained in the first time in mild and green condition which had a 7 nm diameter.

Performance enhancement of a polydimethylsiloxane membrane for effective -butanol pervaporation by bonding multi-silyl-functional MCM-41.

In the current work, MCM-41/polydimethylsiloxane (PDMS) mixed matrix membrane (MMM) was prepared for effective -butanol pervaporation from a model aqueous solution. In order to improve the compatibility between MCM-41 and PDMS, different types of silane coupling agents including -propyltrimethoxysilane (PTMS), -octyltrimethoxysilane (OTMS), -dodecyltrimethoxysilane (DTMS) and -hexadecyltrimethoxysilane (HDTMS) were used to modify the MCM-41. The results showed that the highest -butanol separation performance was achieved by bonding 20 wt% of PTMS-modified MCM-41 with PDMS.

Synthesis of novel bis(Triol)-functionalized Anderson clusters serving as potential synthons for forming organic-inorganic hybrid chains.

Three novel bis(Triol)-functionalized Anderson cluster derivatives (POM-L-POM, POM-L, L-POM-L) were efficiently synthesized, which manifest interesting self-assembly and synergistic effects. They provided strong support in synthons, applications in syntheses and properties for designing organic-inorganic hybrid chains.

Omega-3 fatty acids as a treatment for non-alcoholic fatty liver disease in children: A systematic review and meta-analysis of randomized controlled trials.

Background: The most typical chronic liver disease in children and adolescents is non-alcoholic fatty liver disease (NAFLD). The dietary addition of ω-3 polyunsaturated fatty acids (PUFAs) provides a promising therapy for children with NAFLD due to its convenience and safety; however, several studies suggested contradictory results for PUFA supplementation in children. Hence, we performed a systematic review and meta-analysis to evaluate the effectiveness of PUFA supplementation in children with NAFLD.

PSK1 regulates expression of SOD1 involved in oxidative stress tolerance in yeast.

The Per-ARNT-Sim (PAS) domain serine/threonine kinase PAS kinase is involved in energy flux and protein synthesis. In yeast, PSK1 and PSK2 are two partially redundant PASK homologs. We recently generated PSK2 deletion mutant and showed that Psk2 acts as a nutrient-sensing protein kinase to modulate Ultradian clock-coupled respiratory oscillation in yeast.

Multilayer films of layered double hydroxide/polyaniline and their ammonia sensing behavior.

This paper reports the fabrication of layered double hydroxide (LDH)/conductive polymer multilayer films by alternate assembly of exfoliated ZnAl-LDH nanosheets and polyaniline (PANI) on silicon wafer substrates using the layer-by-layer (LBL) deposition technology. UV-vis absorption spectroscopy indicates a stepwise and regular growth of the (LDH/PANI)n multilayer films upon increasing deposition cycles. Scanning electron microscopy (SEM) and atomic force microscopy (AFM) demonstrate that the surfaces of the films are microscopy smooth and uniform with a thickness of 2 nm per bilayer.

Self-structuring of lamellar bridged silsesquioxanes with long side spacers.

Diurea cross-linked bridged silsesquioxanes (BSs) C(10)C(n)C(10) derived from organosilane precursors, including decylene chains as side spacers and alkylene chains with variable length as central spacers (EtO)(3)Si-(CH(2))(10)-Y-(CH(2))(n)-Y-(CH(2))(10)-Si(OEt)(3) (n = 7, 9-12; Y = urea group and Et = ethyl), have been synthesized through the combination of self-directed assembly and an acid-catalyzed sol-gel route involving the addition of dimethylsulfoxide (DMSO) and a large excess of water. This new family of hybrids has enabled us to conclude that the length of the side spacers plays a unique role in the structuring of alkylene-based BSs, although their morphology remains unaffected. All the samples adopt a lamellar structure.

PSK2 coordinates glucose metabolism and utilization to maintain ultradian clock-coupled respiratory oscillation in Saccharomyces cerevisiae yeast.

Ultradian clock-coupled respiratory oscillation (UCRO) in an aerobic continuous culture of Saccharomyces cerevisiae S288C is principally regulated by control of certain redox reactions of energy metabolism. It is also modulated by the metabolism of storage carbohydrates during adaptation to environmental change. However, the mechanism of cell sensing and response to environmental nutrients in UCRO is unknown.