The purpose of this paper is to evaluate the effectiveness and persuasiveness of the health campaign video about flu vaccinations called No Time For Flu: 30. A survey that asks for people’s attitudes before and after watching the video, targeted to those people who haven’t taken the flu vaccines yet. Twenty-six participants were involved in the survey, including six males and twenty females. After watching the video, the result shows no significant change in people’s attitudes toward taking the flu vaccines. However, it helps raise people’s awareness of flu shots. Failure of the persuasive message designs of “gain-framed message,” “source similarity,” and “peripheral path” might contribute to the ineffectiveness of the video in persuading people. In future health promotion campaigns, to persuade people to take action, persuasive message designs like “loss-frame message” might be suggested for effectiveness. For future research in measuring the effectiveness of persuasive message design in health promotion campaigns, higher numbers of participants with broader races and occupations are suggested. Also, designing the survey in different periods of time for more generalizable results is recommended as well.
Abstract To obtain a magnetically separable, low-cost and highly efficient reduction catalyst, microbial carbon-loaded bimetallic palladium/iron nanoparticles (MC-FePd 3 NPs) were synthesized in this study by using waste yeast residue doped with iron during the preparation process of microbial carbon-loaded monometallic palladium nanoparticles (MC-Pd NPs). The morphology, crystal structure, magnetic properties and catalytic performance of MC-FePd 3 NPs for the reduction of p -nitrophenol (p-NP) were investigated by various characterization techniques, such as SEM-EDS, TEM, XRD, PPMS-9 and UV–vis spectroscopy. The catalytic experiments showed that the MC-FePd 3 NPs prepared under pyrolysis conditions at 700 °C had an apparent rate constant of 1.85 × 10 −1 s −1 which is better than the rate constants of MC-Pd NPs and other palladium-based nanocatalytic materials reported so far. The amount of palladium used in the synthesis of MC-FePd 3 NPs was half that of MC-Pd NPs. The catalyst exhibited soft magnetic ordering behavior and still showed a catalytic efficiency of 97.4% after five consecutive reaction cycles. Furthermore, employing MC-FePd 3 NPs reduces the costs of catalyst preparation and use in production. MC-FePd 3 NPs with efficient catalytic properties, facile magnetic separation and recyclability, and low costs of preparation and use have considerable potential for industrial applications.
To understand the prevalence, coinfection with other viruses, underlying genetic evolution, recombination, and molecular biological characteristics of goose circovirus (GoCV) in Guangdong, China, from December 2019 to August 2020, 310 tissue samples of geese showing stunted growth and feather disorder syndrome were collected from this region and analyzed. GoCV, Tembusu virus, waterfowl paramyxovirus, avian influenza virus, fowl adenovirus type 4, and duck plague virus were detected with PCR or real-time PCR. Thirty-one complete GoCV viral genomes were obtained from 164 PCR-verified GoCV nucleotide-positive samples and subjected to phylogenetic analysis, gene recombination analysis, and genome secondary structure prediction. The results showed that more than half of the samples were GoCV positive, and 31.1% of the GoCV-positive samples were from coinfections with at least one of the other viruses. The phylogenetic analysis showed that the GoCVs could be divided into three genome types. The genes of most main epidemic strains now circulating in Guangdong belonged to the Ia subtype, and some strains gradually formed a new Ib subtype. The secondary structure of the viral genome was similar to that of other known circoviruses. Furthermore, B cell linear epitope prediction and protein structure homology modeling of the viral capsid protein were performed based on the viral amino acid sequences. The results showed that the spatial structure of the capsid protein of the 31 sequenced strains was similar to that of duck circovirus and consisted of two β-sandwich conformations. A total of five B cell linear epitopes were predicted, and four of them were mapped on the predicted model of the capsid protein of GoCVs. This report provides a reference for the epidemiology of GoCV in Guangdong, understanding the elemental composition of the virus genes and proteins, selecting representative vaccine strains, constructing targeted immune preparations for GoCV, and strengthening prevention and control of the disease.
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