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Alphabetical list articles with annotations, from journals published in 2000 in the journal KV and VHF:
50 ohm feeder for W8JK directional antenna
J antenna for 70cm
Vertical antenna for 6 and 10 m bands
Output beam tetrode 6P45S
Generator tetrode GU-84B
hybrid mixer
Long-wave converter for KATRAN receiver
HF transceiver ICOM IC-718
Collection of Ham Radio Soundblaster Software
Computer simulation of Yagi antennas
50 MHz Band Converter
Linear HF amplifier ACOM 2000A
Multiband vertical antenna
Multiband vertical antenna
Modem
Modem for HF and VHF packet
Modernization of KATRAN radio receiver units
Directional antenna for 40 m range
Adjusting the quartz filters
On the excitation of linear tube power amplifiers in a grounded grid circuit
About using macros in WF1B
Parameters of the GU-50 electron tube in triode connection with combined grids
Switchable Antenna Box at 80m
Antenna switching via cable
Increasing the transmitter power of the PALMA radio station
Portable HF transceiver
Portable HF transceiver
R-399A - HF transmitter exciter
Antenna Direction LED
Synthesizer FM radio two-meter range
Frequency synthesizer
Frequency synthesizer for VHF receiver or transceiver
Sweet poison of simple solutions
Silent Antenna Tuning
Tri-band vertical antenna without ladders
Three-element vertically polarized directional antenna
Simplified Power Amplifier Load Resistance Calculation
144 MHz Band Power Amplifier
Effective antenna for 160 (80) meters
Effective Grounding Systems for Vertical Antennas
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Latest news of science and technology, new electronics:
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In a modern technology world where distance is becoming increasingly commonplace, maintaining connection and a sense of closeness is important. Recent developments in artificial skin by German scientists from Saarland University represent a new era in virtual interactions. German researchers from Saarland University have developed ultra-thin films that can transmit the sensation of touch over a distance. This cutting-edge technology provides new opportunities for virtual communication, especially for those who find themselves far from their loved ones. The ultra-thin films developed by the researchers, just 50 micrometers thick, can be integrated into textiles and worn like a second skin. These films act as sensors that recognize tactile signals from mom or dad, and as actuators that transmit these movements to the baby. Parents' touch to the fabric activates sensors that react to pressure and deform the ultra-thin film. This ... >>
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Random news from the Archive Men get the flu more than women
08.01.2018
Scientists at Memorial University of Newfoundland in Canada studied scientific papers on the epidemiology of viral respiratory diseases, including influenza, and stated that men are more difficult than women to survive seasonal colds.
In English there is an expression "male flu", which the Oxford and Cambridge dictionaries define as "a cold or similar mild ailment experienced by a man who exaggerates the severity of symptoms." If everyone believes that men exaggerate the severity of their condition, then their complaints may be paid less attention; because of this, men may receive insufficient treatment. According to statistics, more men die from respiratory diseases than women.
Scientific studies have shown that the immune response of female mice to infectious respiratory diseases is stronger than the immune response of males. These data led to the hypothesis that female sex hormones enhance the immune response. This assumption was confirmed by other studies, the authors of which showed that the female hormone estradiol weakens the pathological immune response, but increases the influx of immune cells into the lungs.
Scientists pay attention to publications proving that women tolerate certain types of flu shots easier than men. What evolutionary mechanisms are behind the different resistance of men and women to influenza is not known, in addition, most of the experiments were carried out on mice, not on humans, and human studies often did not take into account factors that affect the state of the immune system, such as smoking, and willingness to seek medical attention.
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