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Environmental sensors uRADMonitor

11.01.2016

A team of Romanian developers launched a fundraising campaign on the Indiegogo portal for the uRADMonitor sensor. The name of the device speaks for itself - it can be used to measure the levels of X-ray, alpha, beta, gamma radiation, the presence of carbon monoxide and carbon dioxide. You can also track the level of dust, allergen pollution and fumes from household chemicals, atmospheric pressure, air humidity and even temperature.

The uRADMonitor family of sensors will be housed in housings of different designs, with different controls and functionality. The uRADMonitor Model D is designed for portable use and is equipped with an LND 712 radiation detector, a Bosch BME680 atmospheric detector, and a Sharp photoelectric sensor. The control takes place using a color touch screen, the transmission of the collected data is via a Wi-Fi 802.11b / g / n network. The battery capacity of 1500 is enough for 8 hours of continuous operation. The retail price of the uRADMonitor Model D will be $590, with a $100 discount for depositors.

The uRADMonitor Model A option is more suitable for mounting to stationary objects or vehicles. To protect against rain, a rubber casing is provided, the body itself is made of aluminum. There is an SBM-20 Geiger sensor, a temperature sensor and an Ethernet port for automatic data transfer to the Internet. The retail price will be $190, during the campaign the device is estimated at $150.

The uRADMonitor KIT1 model is designed for self-assembly; in comparison with Model A, it lost the temperature sensor, but received an LCD display. The price of the kit will be $90, the assembled version will cost $30 more.

Even more interesting than the devices themselves is the global environmental monitoring system. Data is collected and stored centrally, in addition to visual visualization on the map, you can track changes over time for different sensors or territories, and when the specified tolerances are exceeded, notifications are sent.

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Immunity affects the psyche 31.10.2017

The task of T-lymphocytes is to destroy bacteria, infected cells and cells that have undergone malignant transformation. When a T-lymphocyte encounters something similar, it is activated, and, as a result, its metabolism changes - in an active state, the immune cell needs more energy and more raw materials for the synthesis of various molecules. Metabolic rearrangements in T cells have been known for a long time, but so far nothing has attempted to assess whether such changes in immune metabolism affect the body as a whole.

To find out, Michio Miyajima and his colleagues at the Institute for Physical and Chemical Research (RIKEN) bred a species of mice whose T cells did not have one of the surface receptors, a protein called PD-1. For immunity, the PD-1 receptor is very important: it receives signals that suppress the activity of T-lymphocytes. If PD-1 does not work, activated cells remain so, which is fraught with autoimmune disorders.

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Serotonin and dopamine are necessary for different nerve chains, in particular, the work of the brain centers responsible for emotions and motivation depends on them. And the mice did begin to behave differently: they became more restless and less able to cope with fear. The behavior of the animals returned to normal if they were given food with a high content of the necessary amino acids.

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