Sodium fluorescein and indocyanine green in neuro-oncology and surgery of brain arteriovenous malformations. Review

In this article we generalized results of sodium fluorescein and indocyanine green usage in removing of brain tumors and arteriovenous malformations. Basic principles of fluorescence, it’s sensitivity and specificity are thoroughly described. Drug’s dosages, their ways and exposition of administration are indicated. Special attention is payed at fluorophores’ use in removing of various brain lesions.Concerning fluorescence with indocyanine we reviewed «second window» effect, expanding its usage in neurooncology. In conclusion we described other perspective methods of fluorescence that are being actively researched but have not been implemented in clinical practice yet.

Design of an Intelligent Broken Window System for Dealing with Bus Fire Accidents

In recent years, bus fires occur frequently and accidents are often accompanied by serious casualties. Aiming at this situation, in order to improve the shortage of the traditional way of escape for bus and reduce casualties, in this paper, an intelligent escape system for bus through broken Windows was designed. The system adopts modular design, and a large number of experiments and optimization are carried out in dangerous goods early warning, fire detection and broken window effect test. The results show that the system can effectively break windows and quickly open up multiple escape routes in the case of bus fire accident.

Photoelectrochemical Properties of Porous Si/TiO2 Nanowire Heterojunction Structure

The porous silicon as substrate material was prepared by metal-assisted chemical etching (MACE) method. The TiO2 nanowire cover layer on porous silicon was prepared by hydrothermal method. Thus, porous Si/TiO2 nanowire heterostructure was obtained. The formation of the porous Si/TiO2 nanowire heterostructure was confirmed by X-ray diffraction (XRD) and scanning electron microscope (SEM). The results of diffuse reflection spectra (DRS) show that porous Si/TiO2 nanowire has the highest antireflectivity among the four tested samples. Photoelectric catalysis (PEC) and photocurrent measurement show that the porous Si/TiO2 nanowire heterostructure has higher photoelectric catalytic and photocurrent activity than the other samples under the simulated solar light and visible light irradiation. The results showed that the construction of the porous Si/TiO2 nanowire heterostructure improved the photoelectrochemical properties, which is attributed to the heterogeneous effect and window effect.

Measuring public reaction to media reports of violence against physicians in China (Preprint)

BACKGROUND The serious violence against physicians (VAD) in China has aroused world concern. Moreover, the aggravation of VAD was attributed to online media reports. OBJECTIVE To figure out after reading the VAD reports covered by the media, what kind of attitudes trends do the readers show for the actions of both patients and physicians? Are these trends influenced by the introduction and direction of national policies? METHODS We searched the Chinese VAD reports in international media sources from 2011-2016. We then tracked back the original reports and web-crawled the comments in China. After sampling and coding, we conducted a time series trend analysis. RESULTS Bootstrap shows the relationship between public sentiment of VAD reports and government’s interventions is significant. The interaction between year and attitude is significant. It was significant only between year 2013 and year 2014. The main VAD policies were enacted in 2013 and 2014. In 2011 and 2012, the proportion of "blame doctor" and "support doctor" was relatively balanced. However, in 2013, the proportions began to shift: the proportion of "blame doctor" rose while "support doctor" dropped. CONCLUSIONS The state's administrative intervention effectively guided the public opinion. When government pays attention to the impact of the network on society, broken window effect was controlled that cyber-violence towards medical staff could decrease.