Art Appreciation Instruction and Changes of Classroom Questioning at Senior Secondary School in Visual Culture Context

This paper discusses art appreciation instruction and the changes of classroom questioning at senior secondary school in visual culture context so as to improve art appreciation instruction and find out the strategy for the further development of art education at senior secondary school based on that at primary and junior secondary schools. It analyzes existing problems including classroom questioning in traditional appreciation education by the method of case analysis. It also makes in-depth discussion on art appreciation instruction and the changes of classroom questioning at senior secondary school in visual culture context

4,5-Bis(isopropyl­sulfan­yl)benzene-1,2-dicarbonitrile

In the title compound, C14H16N2S2, the C atoms of the aromatic ring, the two cyanide groups and the two S atoms of the isopropyl­sulfanyl groups are almost coplanar [maximum deviation from the mean plane = 0.042 (7) Å]. In the crystal, inversion dimers linked by aromatic π–π stacking occur, with a centroid–centroid separation of 3.7543 (8) Å

Influence of “Internet plus” based continuous nursing intervention on hemodialysis self-management ability of patients with uremia and its countermeasures

Objective: To analyze the impact of “Internet Plus”oriented continuous nursing intervention on hemodialysis self-management ability (HSMA) of patients with uremia and its countermeasures.Methods: 60 uremia patients admitted to hemodialysis in the hospital from January to December 2018 were selected as the control group (using routine continuous nursing intervention); 60 uremia patients admitted to hemodialysis from January to December 2019 were also selected as the observation group (using "Internet Plus"oriented continuous nursing intervention); the changes in the score values of the two groups of patients according to the self-management scale (SMSH) and chronic disease health literacy after intervention respectively. Results: After intervention，the self-management score of the patients in the observation group in terms of problem solving，emotional processing and self-care was higher than that of the control group (P<0.05)，and the score value in terms of information acquisition ability，improvement of health willingness, communication and interaction ability was higher than that of the control group (P<0).0.05).Conclusion:the continuity of nursing intervention based on “Internet plus”self-management enhances the self-management ability of patients with uremic hemodialysis and improves their health literacy

An oral vaccine against CVA16 (Coxsackievirus A16) was developed by constructing a recombinant Lactococcus lactis

Purpose: To develop an oral vaccine against CVA16 (Coxsackievirus A16) by constructing a recombinant Lactococcus lactis that expresses VP1 from CVA16.Method: An oral CVA16 vaccine was prepared by expressing CVA16 VP1 protein with Lactococcus lactis. CVA16 VP1 gene was incorporated into a Lactobacillus expression vector, namely, pNZ8148, and then expressed in NZ9000, a food-grade lactic acid bacterium which serves as a carrier for oral vaccines.Results: There was statistically significant difference in CVA16-specific IgG antibody level between NZ9000-pNZ8148-CVA16-VP1 group (0.49 ± 0.05) and control group (0.05 ± 0.00) when the antiserum was diluted 1:10 (t = 19.84; p < 0.05). Furthermore, the level of CVA16-specific IgA antibody in NZ9000- pNZ8148-CVA16-VP1 group (0.17 ± 0.02) was significantly higher than in control group (0.05 ± 0.00) following antiserum dilution of 1:10 (t =12.08; p < 0.05).Conclusion: A CVA16 oral vaccine made from Lactobacillus elicits protective antibodies against CVA16. Thus, it is a potential as oral vaccine against CVA16 but further studies in vivo are required to ascertain its safety and effectiveness. Keywords: Coxsackievirus A16, Hand, foot and mouth disease, Lactococcus lactis, Oral vaccine, Enterovirus 7

Heterostructure of ferromagnetic and ferroelectric materials with magneto-optic and electro-optic effects

A heterostructure of multiferroics or magnetoelectrics (ME) was disclosed. The film has both ferromagnetic and ferroelectric properties, as well as magneto-optic (MO) and electro-optic (EO) properties. Oxide buffer layers were employed to allow grown a cracking-free heterostructure a solution coating method

3,3′-(m-Phenyl­enedi­oxy)diphthalonitrile

In the title compound, C22H10N4O2, the dihedral angles between the mean planes of the central benzene ring and the pendant rings are 79.20 (6) and 80.29 (6)°. The dihedral angle between the pendant rings is 10.27 (7)°

Automaticity in processing spatial-numerical associations: Evidence from a perceptual orientation judgment task of Arabic digits in frames.

Human adults are faster to respond to small/large numerals with their left/right hand when they judge the parity of numerals, which is known as the SNARC (spatial-numerical association of response codes) effect. It has been proposed that the size of the SNARC effect depends on response latencies. The current study introduced a perceptual orientation task, where participants were asked to judge the orientation of a digit or a frame surrounding the digit. The present study first confirmed the SNARC effect with native Chinese speakers (Experiment 1) using a parity task, and then examined whether the emergence and size of the SNARC effect depended on the response latencies (Experiments 2, 3, and 4) using a perceptual orientation judgment task. Our results suggested that (a) the automatic processing of response-related numerical-spatial information occurred with Chinese-speaking participants in the parity task; (b) the SNARC effect was also found when the task did not require semantic access; and (c) the size of the effect depended on the processing speed of the task-relevant dimension. Finally, we proposed an underlying mechanism to explain the SNARC effect in the perceptual orientation judgment task

Responsive aqueous foams stabilized by silica nanoparticles hydrophobized in situ with a conventional surfactant

In the recent past, switchable surfactants and switchable/stimulus-responsive surface-active particles have been of great interest. Both can be transformed between surface-active and surface-inactive states via several triggers, making them recoverable and reusable afterward. However, the synthesis of these materials is complicated. In this paper we report a facile protocol to obtain responsive surface-active nanoparticles and their use in preparing responsive particle-stabilized foams. Hydrophilic silica nanoparticles are initially hydrophobized in situ with a trace amount of a conventional cationic surfactant in water, rendering them surface-active such that they stabilize aqueous foams. The latter can then be destabilized by adding equal moles of an anionic surfactant, and restabilized by adding another trace amount of the cationic surfactant followed by shaking. The stabilization–destabilization of the foams can be cycled many times at room temperature. The trigger is the stronger electrostatic interaction between the oppositely charged surfactants than that between the cationic surfactant and the negatively charged particles. The added anionic surfactant tends to form ion pairs with the cationic surfactant, leading to desorption of the latter from particle surfaces and dehydrophobization of the particles. Upon addition of another trace amount of cationic surfactant, the particles are rehydrophobized in situ and can then stabilize foams again. This principle makes it possible to obtain responsive surface-active particles using commercially available inorganic nanoparticles and conventional surfactants

Hopf Bifurcation Analysis for the van der Pol Equation with Discrete and Distributed Delays

We consider the van der Pol equation with discrete and distributed delays. Linear stability of this equation is investigated by analyzing the transcendental characteristic equation of its linearized equation. It is found that this equation undergoes a sequence of Hopf bifurcations by choosing the discrete time delay as a bifurcation parameter. In addition, the properties of Hopf bifurcation were analyzed in detail by applying the center manifold theorem and the normal form theory. Finally, some numerical simulations are performed to illustrate and verify the theoretical analysis