Release date: 2014-12-23
A research team in Japan recently announced that they have discovered some of the mechanisms by which chickens die rapidly after infection with the highly pathogenic avian influenza virus (H5N1 virus), a result that has helped develop new therapies for a variety of infectious diseases.
The research team led by Professor Kyoto Hiroshi of Kyoto Prefecture University conducted the study. According to reports, in the highly pathogenic avian influenza virus, the H5N1 virus is very toxic and can infect humans. In general, after the chicken is infected with the virus, it does not gradually weaken like other diseases, but quickly dies.
When the research team used chickens to test the infection of the H5N1 virus in Indonesia, it found that the blood vessels of all organs of the chickens showed symptoms of bleeding and congestion. Their analysis of chicken lungs showed that the amount of endothelin in the vasopressor was about three times the usual level, while the amount of endothelin receptor was about 1.5 times the usual level.
The team believes that abnormal amounts of endothelin can cause sharp bleeding and ischemia, leading to rapid death of the chicken. When the chicken was injected with an inhibitor that blocked the action of endothelin and the receptor, the mortality rate on the fifth day after infection decreased from 100% to about 20%. However, the mechanism by which endothelins and receptors increase after infection with the virus is not known.
The team believes that bleeding disorders such as Ebola hemorrhagic fever should have the same mechanism. Sakamoto said: "In the treatment of human Ebola hemorrhagic fever, perhaps inhibitors of endothelin and receptors can act as therapeutic drugs."
Source: Xinhua News Agency
How do WiFi Camera Work ?
Monitoring cameras can also be installed without a network, but some functions cannot be used, such as remote monitoring. In order to make it easier for you to understand the knowledge related to the surveillance camera, I will use popular language to popularize science for you.
1: Camera introduction
Camera is an intelligent device that can capture and record video and monitor the environment in real time. It can not only record video, but also detect moving objects, sound, smoke, and even recognize faces.
The advantages of the camera are very obvious. It can help people better monitor the safety of their homes or offices, and help protect the safety of family members or office staff. In addition, it can also provide real-time video monitoring, provide more security guarantees, and help people better grasp the current security situation.
Among them, "intelligent camera" is a new technology in recent years, which can monitor the environment in real time and conduct intelligent identification. The intelligent camera adopts high-definition camera technology, which can clearly capture the on-site images within the monitoring range and conduct real-time monitoring. It can also analyze the captured pictures to identify the designated person or object, thus realizing intelligent monitoring.
In addition, the smart camera can also support remote monitoring. You can remotely view the real-time image of the camera through your mobile phone or computer, allowing users to view the image of the camera anytime and anywhere, to better protect the security of your home or office.
At present, cameras have been widely used in the security industry to monitor buildings, parks, schools and other places to protect the safety of the people. It can also be used in commercial places to help businesses achieve intelligent management, improve business environment and improve service quality.
2: Working principle of camera
The working principle of the camera is to reflect the light to the sensor, convert the signal captured by the sensor into a digital signal, and finally send it to the computer to display the image. Then the camera can capture the static and dynamic images in the picture.
The sensor of the camera is the most important part. It can capture light and convert it into electrical signals. There are many types of sensors, the most common are CCD and CMOS sensors, which can be used to capture images.
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