{"id":2106,"date":"2020-05-08T13:49:03","date_gmt":"2020-05-08T13:49:03","guid":{"rendered":"https:\/\/extraslovensko.sk\/spravy\/?p=2106"},"modified":"2020-05-08T13:49:03","modified_gmt":"2020-05-08T13:49:03","slug":"ultrafialove-svetlo-a-covid-19","status":"publish","type":"post","link":"https:\/\/extraslovensko.sk\/spravy\/ultrafialove-svetlo-a-covid-19\/","title":{"rendered":"Ultrafialov\u00e9 svetlo a Covid-19"},"content":{"rendered":"

Ultrafialov\u00e9 svetlo a technologie mo\u017eno zni\u010dia Covid-19. Ultrafialov\u00e9 svetlo reguluje genetick\u00fd materi\u00e1l v patog\u00e9noch – DNA v bakt\u00e9ri\u00e1ch a plesniach, RNA vo v\u00edrusoch – \u010do br\u00e1ni ich mno\u017eeniu. “V podstate ste to zabili,” uviedol William P. Bahnfleth. Ke\u010f sa spolo\u010dnos\u0165 sna\u017e\u00ed odrazi\u0165 od koronav\u00edrusovej pand\u00e9mie, niektor\u00ed vedci d\u00fafaj\u00fa, \u017ee desa\u0165ro\u010dn\u00e1 technol\u00f3gia by mohla vypudi\u0165 patog\u00e9ny zo vzduchu v obchodoch, re\u0161taur\u00e1ci\u00e1ch a triedach, \u010do by mohlo zohr\u00e1va\u0165 k\u013e\u00fa\u010dov\u00fa \u00falohu pri obmedzovan\u00ed \u010fal\u0161ieho \u0161\u00edrenia infekcie. M\u00e1 nemilosrdn\u00fd n\u00e1zov ultrafialov\u00e9ho germic\u00eddneho \u017eiarenia v hornej miestnosti a je to nie\u010do ako prinies\u0165 energiu slne\u010dn\u00e9ho \u017eiarenia do interi\u00e9ru. <\/p>\n

Ak\u00fd je ten svet mal\u00fd, ked som v\u010dera zmenil design na jemne fialov\u00fd, lavender color, dnes pri\u0161la vnu\u010dka s fialovou b\u00e1bikou a pred 10 min\u00fatami som na\u0161iel tento \u010dl\u00e1nok!:)))<\/p>\n

\u201eV minulosti sme sa usilovali o to, aby bola t\u00e1to vysoko \u00fa\u010dinn\u00e1 a ve\u013emi bezpe\u010dn\u00e1 technol\u00f3gia implementovan\u00e1 v pr\u00edpade infekci\u00ed pren\u00e1\u0161an\u00fdch vzduchom,\u201c uviedol Dr. Edward A. Nardell, profesor glob\u00e1lneho zdravotn\u00edctva a soci\u00e1lneho lek\u00e1rstva na Harvard Medical School. \u201eUrobili sme \u0161t\u00fadie. Vieme, \u017ee to funguje. \u201c <\/p>\n

Slne\u010dn\u00e9 svetlo dezinfikuje a UV \u010das\u0165 jeho spektra je obzvl\u00e1\u0161\u0165 \u00fa\u010dinn\u00e1 pri vyra\u010fovan\u00ed patog\u00e9nov pren\u00e1\u0161an\u00fdch vzduchom. Nie je to to, \u010do prezident Trump nepochopite\u013ene op\u00edsal v apr\u00edli, ke\u010f navrhoval o\u017earovanie vn\u00fatornost\u00ed pacientov z Covid-19 ultrafialov\u00fdm svetlom. Prenosn\u00e9 ultrafialov\u00e9 jednotky sa u\u017e pou\u017e\u00edvaj\u00fa na steriliz\u00e1ciu povrchov v nemocni\u010dn\u00fdch izb\u00e1ch a v metroch, ale tieto m\u00f4\u017eu by\u0165 pou\u017eit\u00e9 iba vtedy, ke\u010f s\u00fa tieto priestory neobsaden\u00e9. Vedci, ako je Dr. Nardell, v pr\u00edstupe opisuj\u00fa, svietidl\u00e1 namontovan\u00e9 na sten\u00e1ch alebo stropoch, podobn\u00e9 \u017eiarivk\u00e1m, ktor\u00e9 sa dnes pou\u017e\u00edvaj\u00fa, \u017eiaria ultrafialov\u00fdm svetlom cez vrch vn\u00fatorn\u00e9ho priestoru, vysoko nad hlavami \u013eud\u00ed. Stropn\u00e9 ventil\u00e1tory s\u00fa niekedy in\u0161talovan\u00e9 tak, aby nas\u00e1vali vzduch nahor, tak\u017ee pl\u00e1vaj\u00face bakt\u00e9rie, v\u00edrusy a huby sa r\u00fdchlej\u0161ie prep\u00ednaj\u00fa. In\u00e1 frekvencia ultrafialov\u00e9ho \u017eiarenia m\u00f4\u017ee by\u0165 e\u0161te bezpe\u010dnej\u0161ia, aj ke\u010f svieti priamo na \u013eud\u00ed, \u010do by tie\u017e umo\u017enilo dezinfekciu povrchov.<\/p>\n

Dr. Nardell odhaduje, \u017ee in\u0161tal\u00e1cia komer\u010dne dostupn\u00fdch svietidiel pre stredne ve\u013ek\u00e9 sklady typu Walmart by st\u00e1la asi 100 000 dol\u00e1rov, \u010do by mohlo by\u0165 pre niektor\u00e9 men\u0161ie podniky pr\u00edli\u0161 drah\u00e9. Syst\u00e9my tie\u017e zvy\u0161uj\u00fa \u00fa\u010dty za elektrinu a vy\u017eaduj\u00fa \u010distenie a \u00fadr\u017ebu. Po\u010das piatich rokov experimentov na nieko\u013ek\u00fdch \u0161kol\u00e1ch mali \u0161tudenti v triedach vybaven\u00fdch ultrafialov\u00fdm pr\u00edslu\u0161enstvom men\u0161iu n\u00e1chylnos\u0165 na \u0161\u00edrenie niektor\u00fdch n\u00e1kazliv\u00fdch chor\u00f4b, ako s\u00fa kiahne a pr\u00edu\u0161nice.<\/p>\n

Najv\u00fdraznej\u0161ia divergencia sa vyskytla na jar 1941, ke\u010f os\u00fdpky pre\u0161li cez \u0161koly v okol\u00ed Philadelphie. Na Germantown Friends School, jednej zo \u0161tudovan\u00fdch \u0161k\u00f4l, boli v triedach z\u00e1kladn\u00fdch tried in\u0161talovan\u00e9 ultrafialov\u00e9 \u017eiarovky. Tam ochorelo asi 15 percent det\u00ed, ktor\u00e9 nemali imunitu proti os\u00fdpkam – teda t\u00fdm, ktor\u00e9 predt\u00fdm t\u00fato chorobu nezak\u00e1zali. Vo vy\u0161\u0161\u00edch triedach, kde neboli nain\u0161talovan\u00e9 ultrafialov\u00e9 \u017eiari\u010de, sa viac ako polovica vn\u00edmav\u00fdch \u0161tudentov nakazila os\u00fdpkami.<\/p>\n

\u201eNiet poch\u00fdb o tom, \u017ee p\u00e1smo vlnov\u00fdch d\u013a\u017eok zab\u00edja alebo inaktivuje mikroorganizmy,\u201c uviedol Dr. Bahnfleth, ktor\u00fd ned\u00e1vno predstavil online semin\u00e1r na t\u00fato t\u00e9mu.<\/p><\/blockquote>\n

\"Ultrafialov\u00e9<\/p>\n

Odborn\u00edci v\u0161ak prip\u00fa\u0161\u0165aj\u00fa, \u017ee pou\u017e\u00edvanie ultrafialov\u00e9ho svetla v interi\u00e9roch by mohlo by\u0165 n\u00e1ro\u010dn\u00e9. Koniec koncov, \u013eu\u010fom bolo po desa\u0165ro\u010dia povedan\u00e9, aby nosili opa\u013eovac\u00ed kr\u00e9m, aby zabr\u00e1nili rakovine ko\u017ee sp\u00f4sobenej ultrafialov\u00fdmi l\u00fa\u010dmi na slne\u010dnom svetle, vlnov\u00fdmi d\u013a\u017ekami zn\u00e1mymi ako UVA a UVB. Z tohto d\u00f4vodu germic\u00eddne pr\u00edpravky pou\u017e\u00edvaj\u00fa vlnov\u00e9 d\u013a\u017eky svetla zn\u00e1me ako UVC, ktor\u00e9 s\u00fa krat\u0161ie ako UVA a UVB. Krat\u0161ie vlnov\u00e9 d\u013a\u017eky znamenaj\u00fa, \u017ee \u010dastice svetla alebo fot\u00f3ny maj\u00fa vy\u0161\u0161iu energiu. Protin\u00e1dorovo to znamen\u00e1, \u017ee UVC je pre \u013eud\u00ed bezpe\u010dnej\u0161ie, preto\u017ee je absorbovan\u00fd prote\u00ednmi vo vonkaj\u0161ej vrstve odumret\u00fdch ko\u017en\u00fdch buniek pred dosiahnut\u00edm DNA v \u017eiv\u00fdch bunk\u00e1ch. (Vonkaj\u0161ie slne\u010dn\u00e9 svetlo nem\u00e1 UVC, preto\u017ee ho blokuje zemsk\u00e1 atmosf\u00e9ra.)<\/p>\n

UVC m\u00f4\u017ee dr\u00e1\u017edi\u0165 poko\u017eku a o\u010di, a preto je svetlo zvy\u010dajne obmedzen\u00e9 nad hlavou \u013eud\u00ed alebo na pou\u017eitie v neobsaden\u00fdch miestnostiach. Podr\u00e1\u017edenie obvykle ust\u00fapi do nieko\u013ek\u00fdch dn\u00ed. Bezpe\u010dnos\u0165 UVC \u201eje u\u017e dlho zaveden\u00e1,\u201c povedal Dr. Nardell.<\/p>\n

UVC \u017eiarovky s\u00fa niekedy in\u0161talovan\u00e9 vo vzduchotechnickom potrub\u00ed, mimo doh\u013eadu a \u00faplne chr\u00e1nen\u00e9 pred \u013eu\u010fmi. Napr\u00edklad medzin\u00e1rodn\u00e9 letisko Syracuse Hancock v \u0161t\u00e1te New York nain\u0161talovalo pr\u00edslu\u0161enstvo nad bezpe\u010dnostn\u00fdmi kontroln\u00fdmi bodmi a ich pr\u00edletov\u00fdmi oblas\u0165ami.<\/p>\n

\u201eZ historick\u00e9ho h\u013eadiska to boli \u00fatulky pre bezdomovcov a zdravotn\u00e9 stredisk\u00e1,\u201c uviedol Daniel Jones, prezident spolo\u010dnosti UV Resources v Santa Clarite v Kalifornii, v\u00fdrobca svietidiel pou\u017e\u00edvan\u00fdch na letisku. Tr\u017eby za posledn\u00fd mesiac vzr\u00e1stli desa\u0165n\u00e1sobne. “Dopyt je cez strechu,” povedal.<\/p>\n

Nardell za\u010dal v\u00fdskum v tejto oblasti v osemdesiatych rokoch po prepuknut\u00ed tuberkul\u00f3zy odolnej vo\u010di drog\u00e1m v bostonskom domove pre bezdomovcov v Bostone. Nesk\u00f4r na juhoafrickom oddelen\u00ed tuberkul\u00f3zy nain\u0161taloval spolu so svojimi spolupracovn\u00edkmi ultrafialov\u00e9 pr\u00edslu\u0161enstvo, ktor\u00e9 sa zap\u00ednalo ka\u017ed\u00fd druh\u00fd de\u0148. Ke\u010f boli svietidl\u00e1 v prev\u00e1dzke, pr\u00fadil vzduch z oddelenia do komory 90 mor\u010diat, ktor\u00e9 mohli s\u0165ahova\u0165 tuberkul\u00f3zu. <\/p>\n

Ako kontroln\u00e1 skupina sl\u00fa\u017eila druh\u00e1 skupina 90 mor\u010diat. Ke\u010f boli svietidl\u00e1 vypnut\u00e9, do ich komory bol vyslan\u00fd neupraven\u00fd vzduch a tak sa nakazilo ove\u013ea viac zvierat. Vedci dospeli k z\u00e1veru, \u017ee ultrafialov\u00e9 svetlo zn\u00ed\u017eilo prenos choroby asi o 80 percent.<\/strong><\/p>\n

Vedci teraz sk\u00famaj\u00fa aj to, \u010do sa naz\u00fdva \u010faleko UVC – e\u0161te krat\u0161ia vlnov\u00e1 d\u013a\u017eka s vy\u0161\u0161ou energiou – ktor\u00e1 sa zd\u00e1 by\u0165 e\u0161te bezpe\u010dnej\u0161ia a ktor\u00e1 by sa mohla nepretr\u017eite k\u00fapa\u0165 v miestnosti, dezinfikova\u0165 povrchy a ni\u010di\u0165 patog\u00e9ny vo vzduchu. V\u00fdrobcovia len za\u010d\u00ednaj\u00fa zvy\u0161ova\u0165 v\u00fdrobu \u010falek\u00fdch UVC pr\u00edpravkov. “Nie \u010doskoro na to, aby n\u00e1m pomohol pri s\u00fa\u010dasnej vlne,” povedal David Brenner, riadite\u013e Centra pre r\u00e1diologick\u00fd v\u00fdskum na Columbia University Medical Center. “Mo\u017eno pr\u00edde dos\u0165 skoro na \u010fal\u0161iu ranu, ktor\u00fa ka\u017ed\u00fd hovor\u00ed.”<\/p>\n

Brenner vedie laborat\u00f3rne experimenty, ktor\u00e9 bud\u00fa \u017eiari\u0165 \u010faleko UVC na bezsrst\u00fdch my\u0161iach osem hod\u00edn denne po\u010das 60 t\u00fd\u017ed\u0148ov. Po 40 t\u00fd\u017ed\u0148och nie s\u00fa \u017eiadne zn\u00e1mky prekancer\u00f3znych l\u00e9zi\u00ed alebo po\u0161kodenia o\u010d\u00ed. Jednou z v\u00fdziev \u0161ir\u0161ieho pou\u017e\u00edvania ultrafialov\u00fdch svetiel je, \u017ee funguje dobre v r\u00f4znych prostrediach. Nemocnice s\u00fa vo v\u0161eobecnosti dobre vetran\u00e9 a udr\u017eiavan\u00e9. Pr\u00fadil by vzduch v kavern\u00e1lnom obchodnom dome dostato\u010dne bl\u00edzko k dezinfekcii pr\u00edslu\u0161enstva? Bolo by zariadenie na stene re\u0161taur\u00e1cie dostato\u010dne \u00fa\u010dinn\u00e9 na to, aby zastavilo v\u00edrus z cestovania z infikovan\u00e9ho hos\u0165a pri jednom stole k susedn\u00fdm stolom?<\/p>\n

S\u00fa\u010das\u0165ou v\u00fdzvy je, \u017ee umiestnenie armat\u00far a ventil\u00e1torov by bolo potrebn\u00e9 optimalizova\u0165 pre konkr\u00e9tne priestory a \u00fa\u010dinnos\u0165 sa mus\u00ed e\u0161te preuk\u00e1za\u0165 vo ve\u013ek\u00fdch verejn\u00fdch priestoroch. Predch\u00e1dzaj\u00face po\u010d\u00edta\u010dov\u00e9 simul\u00e1cie Dr. Srebric uk\u00e1zali, \u017ee jej modely sa zhodovali s experiment\u00e1lnymi testami, ale pr\u00e1ca sa zamerala na mal\u00e9 priestory ako jednotliv\u00e9 miestnosti. Stropn\u00e9 ventil\u00e1tory pomohli, zv\u00fd\u0161enie \u00fa\u010dinnosti asi o tretinu. Bez fan\u00fa\u0161ikov nebolo asi 25 a\u017e 30 percent patog\u00e9nov nikdy usmrten\u00fdch, preto\u017ee vreck\u00e1 vzduchu nikdy nevst\u00fapili do cesty ultrafialov\u00e9ho \u017eiarenia.<\/p>\n

Ona a Dr. Nardell teraz pou\u017e\u00edvaj\u00fa modely do v\u00e4\u010d\u0161\u00edch priestorov, ako s\u00fa letisk\u00e1 a maloobchodn\u00e9 predajne. “Viem, \u017ee to ur\u010dite zlep\u0161\u00ed bezpe\u010dnos\u0165,” povedal Dr. Srebric, “ale nem\u00f4\u017eem v\u00e1m poveda\u0165, do akej miery alebo ako bezpe\u010dne.”<\/p>\n

Potom je tu probl\u00e9m ozna\u010dova\u0165 technol\u00f3giu ultrafialov\u00e9 germic\u00eddne \u017eiarenie. Nardell si mysl\u00ed, \u017ee potrebuje nov\u00e9 meno, mo\u017eno nie\u010do tak\u00e9 jednoduch\u00e9 ako \u201e\u013eahk\u00e1 dezinfekcia\u201c.<\/p>\n

TRUE CRIME: Facebook takes down misinformation networks linked to QAnon!!<\/strong><\/p>\n

digitaltrends.com<\/strong>. Na nahliadnutie sa m\u00f4\u017eeme pozrie\u0165 na predch\u00e1dzaj\u00face koronav\u00edrusy, ako napr\u00edklad SARS a MERS<\/a>. \u0160t\u00fadie o SARS a MERS ukazuj\u00fa, \u017ee UV \u017eiarenie m\u00f4\u017ee v\u00edrusy inaktivova\u0165, tak\u017ee nie je neprimeran\u00e9 o\u010dak\u00e1va\u0165, \u017ee bude ma\u0165 podobn\u00fd \u00fa\u010dinok na COVID-19.<\/strong><\/p>\n

————————————————————————–<\/p>\n","protected":false},"excerpt":{"rendered":"

Ultrafialov\u00e9 svetlo a technologie mo\u017eno zni\u010dia Covid-19. Ultrafialov\u00e9 svetlo reguluje genetick\u00fd materi\u00e1l v patog\u00e9noch – DNA v bakt\u00e9ri\u00e1ch a plesniach, RNA vo v\u00edrusoch – \u010do br\u00e1ni ich mno\u017eeniu. “V podstate ste to zabili,” uviedol William P. Bahnfleth. Ke\u010f sa spolo\u010dnos\u0165 sna\u017e\u00ed odrazi\u0165 od koronav\u00edrusovej pand\u00e9mie, niektor\u00ed vedci d\u00fafaj\u00fa, \u017ee desa\u0165ro\u010dn\u00e1 technol\u00f3gia by mohla vypudi\u0165 patog\u00e9ny […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-2106","post","type-post","status-publish","format-standard","hentry","category-biohazard"],"_links":{"self":[{"href":"https:\/\/extraslovensko.sk\/spravy\/wp-json\/wp\/v2\/posts\/2106","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/extraslovensko.sk\/spravy\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/extraslovensko.sk\/spravy\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/extraslovensko.sk\/spravy\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/extraslovensko.sk\/spravy\/wp-json\/wp\/v2\/comments?post=2106"}],"version-history":[{"count":0,"href":"https:\/\/extraslovensko.sk\/spravy\/wp-json\/wp\/v2\/posts\/2106\/revisions"}],"wp:attachment":[{"href":"https:\/\/extraslovensko.sk\/spravy\/wp-json\/wp\/v2\/media?parent=2106"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/extraslovensko.sk\/spravy\/wp-json\/wp\/v2\/categories?post=2106"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/extraslovensko.sk\/spravy\/wp-json\/wp\/v2\/tags?post=2106"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}