') no-repeat center / 30px 24px transparent;border:0;cursor:pointer;margin:auto;padding:0;width:64px;height:64px;}[data-tadevel-template="web/frame-nav"].top-nav .top-nav-left-bar{position:absolute;left:0;top:0;bottom:0;display:flex;align-items:center;}[data-tadevel-template="web/frame-nav"].top-nav .top-nav-right-bar{position:absolute;right:0;top:0;bottom:0;display:none;}[data-tadevel-template="web/frame-nav"].top-nav .center-bar{position:absolute;top:0;right:64px;bottom:0;left:64px;text-align:center;}[data-tadevel-template="web/frame-nav"].top-nav .center-bar a{display:block;height:100%;}[data-tadevel-template="web/frame-nav"].top-nav .center-bar a .logo{position:absolute;top:0px;right:0px;bottom:0px;left:0px;margin:auto;--object-fit:contain;}@media (prefers-color-scheme: dark){body[data-dark-available] [data-tadevel-template="web/frame-nav"].top-nav{background-color:black;color:var(--primary-text-color);}body[data-dark-available] [data-tadevel-template="web/frame-nav"].top-nav .hamburger{filter:contrast(0) brightness(2);}}@media print{[data-tadevel-template="web/frame-nav"].top-nav .top-nav-left-bar, [data-tadevel-template="web/frame-nav"].top-nav .top-nav-right-bar{display:none;}}[data-tadevel-template="web/frame-nav"].nav-hidden{transform:translateY(-100%) translateY(-4px);}*{box-sizing:border-box;}body{--primary-background-color:#ffffff;--primary-text-color:#212121;--secondary-background-color:#eeeeee;--secondary-text-color:#6c6c6c;--primary-safe30-color:#26A680;--primary-safe45-color:#1E8466;--primary-safe71-color:#17634C;--accent-safe30-color:#26A680;--accent-safe45-color:#1E8466;--accent-safe71-color:#17634C;word-wrap:break-word;background-color:var(--primary-background-color);color:var(--primary-text-color);--spacing-horizontal:12px;--primary-color:#2ab78d;--primary-contrast-color:#212121;--accent-color:#2ab78d;--accent-contrast-color:#212121;--error-color:#dd2c00;}@media (min-width: 768px){body{--spacing-horizontal:16px;}}@media (prefers-color-scheme: dark){body[data-dark-available]{--primary-background-color:#212121;--primary-text-color:#ffffff;--secondary-background-color:black;--secondary-text-color:#acacac;--primary-safe30-color:#2AB78D;--primary-safe45-color:#2AB78D;--primary-safe71-color:#2DC497;--accent-safe30-color:#2AB78D;--accent-safe45-color:#2AB78D;--accent-safe71-color:#2DC497;}}body{margin:0;--object-fit:contain;--object-position:center;}a, a:hover, a:active{text-decoration:inherit;color:inherit;}img{object-fit:var(--object-fit);object-position:var(--object-position);}img.emoji{height:1em;width:1em;margin:0 0.05em 0 0.1em;vertical-align:-0.1em;}img[lazy-src]:not([alt=""]), img[lazy-srcset]:not([alt=""]), source[lazy-src] + img:not([alt=""]), source[lazy-srcset] + img:not([alt=""]){opacity:0;}amp-img .amp-active{display:none;}iframe[id^="google_ads_iframe_"]{display:block;margin:auto;}.spacing-padding{padding:8px;}.spacing-margin{margin:8px;}.padding{padding-left:12px;padding-right:12px;}@media (min-width: 768px){.padding{padding-left:16px;padding-right:16px;}}.row{margin-left:calc(-1 * var(--spacing-horizontal));margin-right:calc(-1 * var(--spacing-horizontal));}.singleline{text-overflow:ellipsis;white-space:nowrap;overflow:hidden;}.flex{display:flex;}@media (max-width: 767px){.if-nsm{display:none;}}@media (min-width: 768px){.if-sm{display:none;}}.centered-content{text-align:center;}.centered-content > div{display:block !important;margin:auto !important;text-align:center;}@media (min-width: 768px){.page-content{border-left:1px solid #eee;border-right:1px solid #eee;}}@media (prefers-color-scheme: dark){html[data-dark-available] .page-content{border-color:black;}}.columns{position:relative;margin-left:calc(-1 * var(--spacing-horizontal));margin-right:calc(-1 * var(--spacing-horizontal));}.columns .column-main{padding:16px var(--spacing-horizontal) 0;margin:0;}@media (min-width: 970px){.columns .column-main{width:calc(100% - 300px - var(--spacing-horizontal) - var(--spacing-horizontal));}}.columns .column-aux{padding:16px var(--spacing-horizontal) 0;}.columns .column-aux > *{margin-bottom:16px;}@media (min-width: 970px){.columns .column-aux{width:300px;box-sizing:content-box;}}@media (min-width: 970px){.columns{display:flex;}.columns > *{flex-shrink:0;}}.container{padding-left:12px;padding-right:12px;position:relative;margin:auto;}@media (min-width: 768px){.container{padding-left:16px;padding-right:16px;}}@media (min-width: 1024px){.container{width:calc(970px + 16px + 16px);}}title-header, .title-header{display:block;text-transform:uppercase;font-weight:600;font-size:28px;line-height:1.8;}.photo{padding-bottom:56.25%;position:relative;background-size:cover;background-position:center;}#frame-content > .frame-separator{height:8px;background-color:var(--secondary-background-color);}#frame-content > .frame-loading::before{display:block;content:'Cargando contenido...';text-align:center;padding:64px 64px 512px;color:var(--secondary-text-color);text-transform:uppercase;font-size:16px;}share-button-set{opacity:0;transition:opacity 0.2s ease-in;}body:not([my-unresolved]) share-button-set{opacity:1;}view-offline{padding:8px 16px;background:#d32f2f;color:white;text-transform:uppercase;font-size:14px;font-weight:bold;text-align:center;box-shadow:0 2px 4px grey;display:none;}body.offline view-offline{display:block;}body.debugging [data-tadevel-template]{border:4px solid blue;}body.debugging [data-tadevel-template] .hint{position:absolute;top:0;left:0;color:blue;text-transform:uppercase;font-weight:bold;background:white;font-size:12px;}x-carousel{position:relative;display:block;}x-carousel .x-carousel-content{width:100%;display:flex;flex-direction:row;-ms-scroll-snap-type:x mandatory;scroll-snap-type:x mandatory;overflow-x:scroll;overflow-y:hidden;padding-bottom:4px;}x-carousel .x-carousel-content::-webkit-scrollbar{width:2px;height:2px;}x-carousel .x-carousel-content::-webkit-scrollbar-track{background:rgba(0, 0, 0, 0.1);}x-carousel .x-carousel-content::-webkit-scrollbar-thumb{background:rgba(0, 0, 0, 0.5);}x-carousel .x-carousel-content > *{flex-shrink:0;scroll-snap-align:start;}#onesignal-popover-container{z-index:3 !important;}view-firebase-prompt, view-install-prompt{will-change:transform;top:initial;bottom:0;transition:transform 0.2s ease-in;transform:translateY(100%);filter:none;}view-firebase-prompt[shown], view-install-prompt[shown]{filter:drop-shadow(0px 2px 4px #00000088);transform:translateY(0);}@media (min-width: 768px){view-firebase-prompt, view-install-prompt{top:0;bottom:initial;transform:translateY(-100%);}view-firebase-prompt[shown], view-install-prompt[shown]{filter:drop-shadow(0px -2px 4px #00000088);transform:translateY(0);}}aux-sheet .wrapper.aux-sheet{bottom:var(--view-toolbar-wrapper-total-height);filter:drop-shadow(0px -8px 8px #000000aa);}[data-tadevel-template="web/toolbar-wrapper"]{z-index:3;position:fixed;bottom:0;margin:auto;left:0;right:0;background:white;width:100%;filter:drop-shadow(2px 4px 6px black);color:#333;transition:transform 0.2s ease-in;}[data-tadevel-template="web/toolbar-wrapper"] > #view-toolbar-wrapper-content{position:absolute;top:100%;width:100%;background:white;}[data-tadevel-template="web/toolbar-wrapper"] view-toolbar{display:block;min-height:48px;}@media (min-width: 768px){[data-tadevel-template="web/toolbar-wrapper"]{width:-moz-fit-content;width:fit-content;min-width:480px;}}[data-tadevel-template="web/frame"]{font-family:'Open Sans', Arial;}[data-tadevel-template="web/frame"] body{background-color:var(--secondary-background-color);}[data-tadevel-template="web/frame"] title-header{font-weight:bold !important;}[data-tadevel-template="web/frame"] img.style-scope.frame-separator{padding:12px !important;}[data-tadevel-template="web/frame"] .page-content{background:var(--primary-background-color);padding-top:16px;}@media (min-width: 768px){[data-tadevel-template="web/frame"] [data-tadevel-template="web/toolbar-wrapper"]{max-width:initial;width:-moz-fit-content;width:fit-content;min-width:480px;}}[data-tadevel-template="web/frame"] view-weather .icon.view-weather img.view-weather{height:32px;}[data-tadevel-template="web/frame"] view-weather .temp.view-weather{font-size:20px;}[data-tadevel-template="web/frame"] view-weather .city.view-weather{font-size:15px;font-weight:initial;}[data-tadevel-template="web/frame"] [data-tadevel-template="web/frame-nav"]{background-color:var(--primary-background-color);background-image:linear-gradient(0deg, #CCCCCC44, rgba(204, 204, 204, 0));}[data-tadevel-template="web/frame"] [data-tadevel-template="web/frame-nav"].top-nav .logo{max-height:36px;}@media (min-width: 768px){[data-tadevel-template="web/frame"] [data-tadevel-template="web/frame-nav"].top-nav{transition:all 0.2s ease-in;}[data-tadevel-template="web/frame"] [data-tadevel-template="web/frame-nav"].top-nav:not(.floating){height:96px;}[data-tadevel-template="web/frame"] [data-tadevel-template="web/frame-nav"].top-nav .logo{transition:all 0.2s ease-in;max-height:48px;}[data-tadevel-template="web/frame"] [data-tadevel-template="web/frame-nav"].top-nav .top-nav-right-bar{display:flex;align-items:center;}}@media (min-width: 1280px){[data-tadevel-template="web/frame"] [data-tadevel-template="web/frame-nav"] .container{width:1280px;}}[data-tadevel-template="web/frame"] [data-tadevel-template="web/article"] .article-live{padding:6px 12px;}[data-tadevel-template="web/frame"] [data-tadevel-template="web/article"] .article-kicker{display:inline-block;background:var(--primary-color);color:white;padding:4px 8px;font-size:12px;font-weight:bold;}[data-tadevel-template="web/frame"] [data-tadevel-template="web/article"] .article-title{font-weight:bold;font-size:30px;line-height:1.5;}@media (min-width: 768px){[data-tadevel-template="web/frame"] [data-tadevel-template="web/article"] .article-title{font-size:52px;line-height:1.6;padding-right:128px;}}[data-tadevel-template="web/frame"] [data-tadevel-template="web/article"] .article-body{font-size:17px;line-height:28px;}@media (prefers-color-scheme: light){[data-tadevel-template="web/frame"] [data-tadevel-template="web/article"] .article-title{color:#4f4f4f;}[data-tadevel-template="web/frame"] [data-tadevel-template="web/article"] .article-body{color:#282828;}}@media (min-width: 1280px){[data-tadevel-template="web/frame"] [data-tadevel-template="web/article"] .container{width:1200px;}[data-tadevel-template="web/frame"] [data-tadevel-template="web/article"] .container .column-main{padding:16px 64px 16px 16px;border-right:0;}[data-tadevel-template="web/frame"] [data-tadevel-template="web/article"] .container .column-aux{border-left:0;}}@media (min-width: 768px){[data-tadevel-template="web/frame"] [data-tadevel-template="web/article"] article-related .items > *{width:calc(25% - 16px);}}[data-tadevel-template="web/frame"] body.front-flama, [data-tadevel-template="web/frame"] body.front-rosario-central, [data-tadevel-template="web/frame"] body.front-newells{background:#2f2f2f;}[data-tadevel-template="web/frame"] body.front-flama .top-nav, [data-tadevel-template="web/frame"] body.front-rosario-central .top-nav, [data-tadevel-template="web/frame"] body.front-newells .top-nav{color:white;box-shadow:0 0 4px black;}[data-tadevel-template="web/frame"] body.front-flama .page-content, [data-tadevel-template="web/frame"] body.front-rosario-central .page-content, [data-tadevel-template="web/frame"] body.front-newells .page-content{border-color:black;background:none;}[data-tadevel-template="web/frame"] body.front-flama view-foo, [data-tadevel-template="web/frame"] body.front-rosario-central view-foo, [data-tadevel-template="web/frame"] body.front-newells view-foo{background-color:#111;color:white;box-shadow:0 0 3px black;}[data-tadevel-template="web/frame"] body.front-flama view-foo img, [data-tadevel-template="web/frame"] body.front-rosario-central view-foo img, [data-tadevel-template="web/frame"] body.front-newells view-foo img{filter:contrast(0) brightness(2);}[data-tadevel-template="web/frame"] body.front-flama .top-nav{background-color:#232323;background-image:url(//www.rosarioplus.com/arte/trama-5.png);}[data-tadevel-template="web/frame"] body.front-flama .top-nav view-weather{color:white;}[data-tadevel-template="web/frame"] body.front-flama .top-nav .logo{filter:contrast(0) brightness(2);}[data-tadevel-template="web/frame"] body.front-rosario-central .top-nav, [data-tadevel-template="web/frame"] body.front-newells .top-nav, [data-tadevel-template="web/frame"] body.category-nob .top-nav, [data-tadevel-template="web/frame"] body.category-rc .top-nav{background-color:#1e1e1e;background-image:url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAkAAAAKCAYAAABmBXS+AAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH5AgfFAYYJxLLQAAAAHdJREFUGNNtkLEOAjEMQx+nDhlZb/LMeCufAisb38cH+S9uZDmjUJ2lqK4bV04AqtVNEkDlBOpyECTttosGSTvACJkR3XYtEfNLN9l+AO9x5m6mJ7CNOceEV9y/KTrP/dD+VnDa3HeyAR9gnRuXFnYF7sA1wfP2BR1uJKRFpLQxAAAAAElFTkSuQmCC);}[data-tadevel-template="web/frame"] body.front-rosario-central .top-nav::after, [data-tadevel-template="web/frame"] body.front-newells .top-nav::after, [data-tadevel-template="web/frame"] body.category-nob .top-nav::after, [data-tadevel-template="web/frame"] body.category-rc .top-nav::after{content:' ';display:block;background:var(--ribbon);height:3px;}[data-tadevel-template="web/frame"] body.front-rosario-central .top-nav view-weather, [data-tadevel-template="web/frame"] body.front-newells .top-nav view-weather, [data-tadevel-template="web/frame"] body.category-nob .top-nav view-weather, [data-tadevel-template="web/frame"] body.category-rc .top-nav view-weather{display:none;}[data-tadevel-template="web/frame"] body.front-rosario-central .top-nav .logo, [data-tadevel-template="web/frame"] body.front-newells .top-nav .logo, [data-tadevel-template="web/frame"] body.category-nob .top-nav .logo, [data-tadevel-template="web/frame"] body.category-rc .top-nav .logo, [data-tadevel-template="web/frame"] body.front-rosario-central .top-nav .toggle-menu, [data-tadevel-template="web/frame"] body.front-newells .top-nav .toggle-menu, [data-tadevel-template="web/frame"] body.category-nob .top-nav .toggle-menu, [data-tadevel-template="web/frame"] body.category-rc .top-nav .toggle-menu{filter:contrast(0) brightness(2) drop-shadow(2px 4px 6px black);}[data-tadevel-template="web/frame"] body.front-newells .top-nav, [data-tadevel-template="web/frame"] body.category-nob .top-nav{--color-primary:#ee1d23;--color-background:#1e1e1e;--ribbon:linear-gradient(to right, #cf0202 50%, #000000 50%);}[data-tadevel-template="web/frame"] body.front-rosario-central .top-nav, [data-tadevel-template="web/frame"] body.category-rc .top-nav{--color-primary:#f4bc22;--color-background:#163254;--ribbon:linear-gradient(to right, #f4bc22 0%, #f4bc22 14%, #234b7f 14%, #234b7f 28%, #f4bc22 28%, #f4bc22 42%, #234b7f 42%, #234b7f 56%, #f4bc22 56%, #f4bc22 70%, #234b7f 70%, #234b7f 86%, #f4bc22 86%, #f4bc22 100%);}[data-tadevel-template="web/frame"] [data-tadevel-template="web/frame-drawer"] paper-item{min-height:40px;font-size:15px;}@media (prefers-color-scheme: dark){[data-tadevel-template="web/frame"] body[data-dark-available] view-weather{color:white;}[data-tadevel-template="web/frame"] body[data-dark-available] .page-content{border-color:black;}}[data-tadevel-template="web/frame-body"]{}@media (min-width: 1366px){[data-tadevel-template="web/frame-body"] [is="page-front"]{left:-150px;}[data-tadevel-template="web/frame-body"] .offset-target{transform:translateX(-150px);}}[data-tadevel-template="web/frame-nav"].top-nav .date{position:absolute;bottom:4px;left:0;right:0;font-size:12px;text-transform:uppercase;transition:all 0.2s ease-in;line-height:1;}@media (max-width: 768px){[data-tadevel-template="web/frame-nav"].top-nav .date{display:none;}}[data-tadevel-template="web/frame-nav"].top-nav.floating .logo{padding-bottom:4px;}[data-tadevel-template="web/frame-nav"].top-nav.floating .date{bottom:1px;}[data-tadevel-template="web/frame-nav"].top-nav .top-nav-right-bar{display:flex;align-items:center;}
21 de mayo de 2024
NO HAY RAID QUE AGUANTE
Alerta porque los mosquitos son cada vez más indestructibles y resistentes El Aedes aegypti está mutando y ganando mayor resistencia a insecticidas, según comprueban investigadores del Conicet. sábado 5 de agosto de 2023 18:23
Un estudio científico con investigadoras del Conicet confirmó la presencia de mutaciones genéticas en el mosquito Aedes aegypti, transmisor del virus del dengue, que son resistentes a las fumigaciones con insecticidas y que los hacen tolerantes a dosis normalmente letales.
Se trata de una investigación científica del Conicet La Plata publicada en la revista Parasites & Vectors que comprueba que el Área Metropolitana de Buenos Aires (AMBA), junto a Tartagal en Salta y Parque Nacional Calilegua en Jujuy, también están habitadas por mosquitos de esta especie que acarrean mutaciones genéticas responsables de esta capacidad de evadir los efectos de los venenos.
La presunción estaba dada por el caso de Brasil, país con una extensa y estudiada presencia de poblaciones del insecto altamente resistentes a los productos químicos más utilizados, pero nunca se había examinado qué pasaba en Argentina hasta ahora.
Hay tres genotipos o variedades genéticas: el sensible, es decir el de aquellos que son alcanzados por el efecto del insecticida y mueren por volteo; el R1, que tiene una mutación que los hace resistentes pero en un nivel bajo; y el R2, que presenta dos mutaciones y se asocia a una resistencia alta.
"En los asentamientos urbanos del Gran Buenos Aires encontramos poblaciones R1, que en muchos municipios incluso superan en cantidad a las sensibles. La situación en el NOA es más complicada: allí detectamos grupos R2”, explicó Sheila Ons, investigadora y autora principal del estudio.