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Medikus
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Medikus
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Medikus
Nutrition Calorie Counter |
Otkriće EKG-a |
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Novosti |
Warning: mktime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/medikhr/public_html/libraries/joomla/utilities/date.php on line 117 Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/medikhr/public_html/libraries/joomla/utilities/date.php on line 245 Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/medikhr/public_html/libraries/joomla/utilities/date.php on line 249 Warning: strftime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/medikhr/public_html/libraries/joomla/utilities/date.php on line 250 Utorak, 21 Svibanj 2019 03:25 |
Izvorni stroj je zahtijevao hlađenje vode za moćne elektromagnete i 5 ljudi za upravljanje, te je težio oko 270 kilograma. Ovaj uređaj je povećao osjetljivost standardnog galvanometra tako da se električna aktivnost srca mogla izmjeriti unatoč izolaciji mesa i kostiju. Prije Einthovenovog vremena bilo je poznato da udaranje srca proizvodi električne struje, ali instrumenti tog vremena nisu mogli točno izmjeriti ovaj fenomen bez postavljanja elektroda izravno na srce. Iako su kasniji tehnološki napredci donijeli bolji i prenosiviji EKG uređaji, velik dio terminologije koja se koristi za opisivanje EKG-a potječe od Einthovena. Njegova dodjela slova P, Q, R, S i T raznim otklonima i dalje se koristi. Pojam Einthovenov trokut nazvan je po njemu. Odnosi se na imaginarni obrnuti jednakostraničan trokut s središtem na prsima, a točke su standardni vodiči na rukama i nogama. Wikipedia.orgVEZANI SADRŽAJI
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