An interactive segmentation method based on superpixel

This paper proposes an interactive image-segmentation method which is based on superpixel. To achieve fast segmentation, the method is used to establish a Graphcut model using superpixels as nodes, and a new energy function is proposed. Experimental results demonstrate that the authors’ method has excellent performance in terms of segmentation accuracy and computation efficiency compared with other segmentation algorithm based on pixels

Re-thinking about Primary and Secondary School Teachers’ Professional Standards in China

China has implemented “Middle School Teachers’ Professional Standard (trial)”, “Primary School Teachers’ Professional Standard (trial)” and “Kindergarten Teacher Professional Standards (trial)” for over four years. However, in the actual operating level, these teachers’ professional standards have bad influence on teacher’s critical thinking and the alienation relationship between teachers and students, so this article tries to summarize the teachers’ professional standards in developed countries based on the current our country overall education background, and comes up with several suggestions for Teachers’ Professional Standards in China. Keywords: Teachers’ Professional Standards; Education Background; Suggestion

The Effect of Affordance on Ubiquitous Commerce Consumption

The rapid development of ubiquitous technologies and mobile devices has made ubiquitous commerce (U-commerce) the next business wave. U-commerce enabled merchants with new opportunities to provide personalized services and novel shopping experiences to customers. Applying affordance theory, this study builds a research model that explains the consumer cognitive assimilation process in U-commerce and explores hedonic and impulsive consumption. This study played the U-commerce video for participants before they answered the questionnaires. The empirical results show that context-aware facilitation and social facilitation contribute equally in explaining cognitive assimilation. Meanwhile, cognitive assimilation significantly influences both hedonic consumption and impulsive consumption. This study sheds light on the two important facilitations derived from the U-commerce environment and also reveals the determinants for two types of interesting purchase behaviors in the U-commerce context

Clinical Observation of Coronary Artery Bypass Grafting with Heart Valve Replacement for Coronary Heart Disease with Heart Valvular Disease

Objective: To analyze and explore the clinical observation of coronary artery disease with coronary heart disease and coronary heart disease (CHD) undergoing coronary artery bypass grafting. Methods: From December 2015 to December 2016, 80 patients with coronary heart disease and heart valve were randomly divided into two groups: observation group and control group (40 cases). The observation group was treated with coronary artery bypass grafting combined with simultaneous heart valve replacement. The control group was treated with coronary stent implantation and non-synchronous valve replacement. The improvement of postoperative cardiac function, postoperative hospitalization, adverse events and bridge patency were compared between the two groups. Results: The improvement of cardiac function and the incidence of adverse events were significantly better in the observation group than in the control group (P <0.05). The time of hospitalization and the time of ventilator were significantly shorter than those of the control group (P <0.05). The patency rate of the bridge was significantly higher than that of the control group (P <0.05). Conclusion: Coronary artery bypass grafting combined with heart valve replacement in patients with coronary heart disease complicated with valvular heart disease can achieve significant curative effect, which is more ideal and safer than coronary artery bypass surgery combined with non-synchronous valve replacement

Nanoparticle-based inner ear delivery systems for the treatment of hearing loss

Hearing loss has become the most common sensory disorder worldwide. Despite intensive research on the pathophysiology of hearing loss, biological therapeutic approaches are limited by the anatomical and physiological characteristics of the inner ear. Challenges in inner ear drug delivery involve biotherapeutic instability, membrane inaccessibility and delivery non-specificity. With the development of nanotechnology, the nanoparticle-based delivery systems are promising to overcome these limitations. After drugs loading and stabilization, nanoparticles can carry the drugs into the inner ear by crossing round window membrane. The surface bioconjugation of ligand endows nanoparticles with specific targeting capability. Nanoparticles with stimuli-responsive moieties can provide a controlled release manner. Together, these strategies show great potential for hearing loss treatment. Understanding the current advances of nanotechnology in hearing loss treatment will facilitate future therapeutic options and clinical applications.</p