The home quarantine in the COVID-19 pandemic has created challenges for teaching across world and called innovative teaching, as well teachers' learning. Given rapid development of online learning identifying effective ways to facilitate under such challenging conditions is a critical issue. Although researchers have realized that workplace informal (IL) increasingly reveals its potential value individual development, relationship between IL innovation been under-explored. purpose this study...

Drug delivery particulates were prepared using alginate, polylysine and pectin. Theophylline, chlorothiazide indomethacin used as the model drugs for in-vitro assessments, mannitol was assessing paracellular drug absorption across Caco-2 cell monolayers. Alginate pectin served core polymers helped to strengthen particulates. Use of specially in forming a more robust particulate that resistant acidic pH modulated release profiles encapsulated alkaline pH. also found enhance monolayers by...

Abstract Bovine serum albumin, based on its low toxicity and excellent biocompatibility, has great potential as a carrier for drug delivery systems. In this context, pH/GSH dual‐responsive system (ICG/DOX@Fe‐BSA‐FA nanoparticles) albumin (BSA) is constructed tumor‐targeted multimodal therapy. study, doxorubicin (DOX) indocyanine green (ICG) are co‐loaded after Fe 3+ coordinated with BSA, the finally grafted targeted molecule Folic acid. DOX used in chemotherapy, ICG photodynamic therapy...

Due to soil adsorption, higher amounts of the herbicide butachlor are necessary achieve its herbicidal activity, hence increasing environmental risks. In this study, effects β-cyclodextrin (β-CD) on solubility and adsorption were investigated. Formation a 1:1 stoichiometric inclusion complex between them with an apparent stability constant 443 L mol−1 was confirmed in solution. Fourier transform infrared spectroscopy showed that (N−CO) amide bond alkyl ether moiety molecule could enter into...

Objective: This study aimed to evaluate the television (TV) viewing and computer mobile phone usage duration in a community sample of Chinese adults examine their associations with BMI obesity. Methods: We conducted community-based health needs assessment from February December 2018 among 2,873 Nanshan District Shenzhen, China. used self-administered questionnaires collect data 24 service centers District. The participants individually recorded time they spent watching TV using computers...

AIM:To investigate the effects of different concentrations Schistosoma japonicum (S. ) egg antigen on fibrogenesis and apoptosis in primary hepatic stellate cells (HSCs). METHODS:A mouse model schistosomiasis-associated liver fibrosis (SSLF) was established by infecting mice with schistosomal cercaria via abdomen.HSCs were isolated from SSLF discontinuous density gradient centrifugation, their identity confirmed immunofluorescence double staining α-smooth muscle actin (α-SMA) desmin.The...

Rice starch (RS) and oat flour (OF) were mixed in different proportions, the pasting properties, particle size, rheology, tribological properties of system analyzed. According to RVA results, OF inhibited pasting, temperature peak viscosity increased. The size shifted toward small after mixing RS components, RS/OF 9/1 is smallest. All samples exhibited shear dilution behavior could be significantly increased at a 10 wt% content. At sliding speeds >1 mm/s, friction mixture usually between two...

A rapid and specific HPLC method has been developed validated for the simultaneous determination of liensinine (CAS 2586-96-1), isoliensinine 6817-41-0) neferine 2292-16-2) in rat plasma. The sample was prepared by a liquid-liquid extraction with diethyl ether recovery above 80% from plasma three compounds. Chromatographic separation achieved Hypersil BDS C18 column (4.0 mm x 250 mm, particle size 5 microm). mobile phase consisting methanol: 0.2 M KH2PO4:0.2 NaOH:triethylamine...

PCL has a long history as an industrialized biomaterial for preparing microspheres, but its hydrophobic property and slow degradation rate often cause drug degeneration, quite release undesirable tri-phasic profile.In this study, we used the blending material of PLGA-PEG-PLGA to prepare microspheres. The microspheres behaviors were evaluated through their molecular weight reduction rate, mass loss morphology erosion profile. hydrophilic is expected improve microspheres.Microspheres in...

Monolithic optical cavities employing total internal reflections are appealing compact platforms for a wide range of applications from fundamental physics to industry applications. We characterize the transverse patterns millimeter-size monolithic nonplanar ring vortex laser pumped by Gaussian beam. Vortex beams carrying orbital angular momentum (OAM) up $30$ together with crystals and petal observed. The rigid nature cavity brings along its low-noise lasing performance these beams. A...

The purpose of this research was to proof the microspheres release mechanism by a novel method-detecting and comparing drugs fluorescent changes on surface. Fluorescein sodium (FS, 0.4 kDa) fluorescein isothiocyanate-bovine serum albumin (FITC-BSA, 66.8 were employed as model drugs. FS FITC-BSA encapsulated into PLGA-mPEG through double emulsion evaporation method, drug-loaded in vitro degradation behaviors evaluated scanning electron microscope, gel permeation chromatography, confocal laser...

Abstract This research displayed the differences of formation process, morphology, degradation, and release behaviors between PCL PCL‐mPEG microspheres. Lysozyme loaded microspheres were prepared by double emulsion evaporation method, droplets transformation process was observed compared under microscope. Microspheres in vitro degradation evaluated scanning electron microscope, gel permeation chromatography, bicinchoninic acid protein assay kit. got a rough surface outer water phase...

In this paper, a synchronous frame based control method of voltage source converter (VSC) for superconducting magnetic energy storage (SMES) is presented. The model and the feedforward decoupling are described. design regulators depicted in detail. Simulations experiments both demonstrate studies.

This paper introduces a double-DSP controlled power-conditioning-system (PCs) for experimental SMES. Voltage-source-converter (VSC) with chopper is employed in the sample. The VSC four-quadrant-AC/DC converter and two-quadrant-DC/DC converter, they can perform charging to or discharging from coil. proposed system feasible by results of experiment.