FDA warns: Anesthesia does harm the brains of young children December 19, 2016 Source: Xinhuanet The US Food and Drug Administration warned on the 14th that the use of general anesthesia or sedatives for pregnant women or children for multiple or long periods of time (more than three hours) may harm the pregnant woman's pregnant or the brain of a child under three years of age. The US Drug Administration issued this warning after comprehensively evaluating a series of scientific research. The agency also pointed out that one-time, relatively short-term general anesthesia or sedative drugs are unlikely to have a negative impact on children's behavior or learning ability. Janet Woodcock, director of the Center for Drug Evaluation and Research at the US Drug Administration, said in a statement that in many cases, the use of anesthesia or sedatives is necessary, so the potential hazards and risks of non-use must be placed Take a serious balance together. In order to better inform the public about the risks involved, the agency will require warnings on the label of anesthetic or sedative drugs. Animal studies cited by the US Drug Administration have shown that multiple or prolonged use of general anesthesia or sedation for more than three hours can cause the brain to lose a large number of nerve cells, which can have long-term adverse effects on behavior or learning ability. Some research conducted on children has also supported this conclusion. Since 1999, the US Drug Administration has investigated the adverse effects of general anesthesia or sedative drugs on children's brain development and has established a partnership with the International Association of Anesthesiology to fund research in this area.
What is DVR Mini Camera
Dvr, which is called DigitalVideoRecorder in full, is a digital video recorder. Compared with traditional analog video recorders, dvr uses hard disk for recording, so it is often called hard disk recorder, also called DVR. It is a set of computer system for image computing, storage and processing. It has the functions of long-time video recording, recording, remote monitoring and control of images/voice and dynamic frames. DVR integrates five functions, including video recorder, picture splitter, PTZ lens control, alarm control, and network transmission. One device can replace a large number of devices in the analog monitoring system, Moreover, it has gradually gained advantages and popularity in terms of price.
The function of DVR, with the increase of various voltage sensitive loads in the distribution network, puts forward higher requirements for power quality. However, due to system accidents in the power system, the voltage flicker, drop and other disturbances caused by the startup and shutdown of large equipment, lightning stroke and other principles are unavoidable. Moreover, in the current power grid, the ability to quickly restore power supply after power interruption is far from meeting the requirements of many sensitive loads. Therefore, it is necessary to provide users with stable and uninterrupted high-quality power when interference occurs. Dynamic voltage recovery (DVR) is the choice to solve the above problems today. DVR is connected in series to the feeder line that requires high-quality power to realize dynamic real-time voltage compensation for the line, so that the load end can get the desired high-quality power, and ensure the normal and uninterrupted operation of sensitive user equipment.
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The "digitalization" of DVR means that compression and storage technology is aimed at digital signals, rather than directly transmitting digitally encoded video images. Therefore, DVR must be deployed near the analog camera.
FDA warns: Anesthesia does harm the brains of young children