<?xml version='1.0' encoding='UTF-8'?><?xml-stylesheet href="http://www.blogger.com/styles/atom.css" type="text/css"?><feed xmlns='http://www.w3.org/2005/Atom' xmlns:openSearch='http://a9.com/-/spec/opensearchrss/1.0/' xmlns:georss='http://www.georss.org/georss' xmlns:gd='http://schemas.google.com/g/2005' xmlns:thr='http://purl.org/syndication/thread/1.0'><id>tag:blogger.com,1999:blog-7666017211606263195</id><updated>2012-02-16T04:38:00.164-08:00</updated><category term='istologia'/><category term='Gandhi'/><category term='crittografia'/><category term='ritratti'/><category term='epitelio'/><category term='javascript'/><category term='tris'/><category term='minimax'/><category term='fattorizzazione'/><category term='esadecimale'/><category term='fila a tre'/><category term='filetto'/><category term='ambiente'/><category term='numeri primi'/><category term='conversione di base'/><category term='tic tac toe'/><category term='cambiamenti climatici'/><category term='tessuto epiteliale'/><category term='binario'/><title type='text'>Sebastiano Morando</title><subtitle type='html'>i prodotti della mia mente</subtitle><link rel='http://schemas.google.com/g/2005#feed' type='application/atom+xml' href='http://sebastianomorando.blogspot.com/feeds/posts/default'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/7666017211606263195/posts/default?max-results=100'/><link rel='alternate' type='text/html' href='http://sebastianomorando.blogspot.com/'/><link rel='hub' href='http://pubsubhubbub.appspot.com/'/><author><name>Sebastiano</name><uri>http://www.blogger.com/profile/01831508688749249165</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='27' height='32' src='http://1.bp.blogspot.com/_qeL4KjG6c7o/TLBa1_ybjiI/AAAAAAAAAFc/HP3rT1czlv4/S220/miafoto.jpg'/></author><generator version='7.00' uri='http://www.blogger.com'>Blogger</generator><openSearch:totalResults>9</openSearch:totalResults><openSearch:startIndex>1</openSearch:startIndex><openSearch:itemsPerPage>100</openSearch:itemsPerPage><entry><id>tag:blogger.com,1999:blog-7666017211606263195.post-4828478364826986474</id><published>2011-04-27T09:06:00.000-07:00</published><updated>2011-05-06T03:17:45.199-07:00</updated><category scheme='http://www.blogger.com/atom/ns#' term='javascript'/><category scheme='http://www.blogger.com/atom/ns#' term='tris'/><category scheme='http://www.blogger.com/atom/ns#' term='fila a tre'/><category scheme='http://www.blogger.com/atom/ns#' term='tic tac toe'/><category scheme='http://www.blogger.com/atom/ns#' term='minimax'/><category scheme='http://www.blogger.com/atom/ns#' term='filetto'/><title type='text'>Giuoco del tris nella sua implementazione in javascript</title><content type='html'>Piccolo esperimento di implementazione in javascript di un'intelligenza artificiale giocatrice di tris (o filetto, fila a tre, tic tac toe che dir si voglia).&lt;br /&gt;Ho usato l'algoritmo &lt;a href="http://it.wikipedia.org/wiki/Minimax"&gt;minimax&lt;/a&gt;&amp;nbsp;sull'albero di tutte le partite possibili, ad ogni mossa il computer ricalcola l'albero delle partite fino alle mosse finali, quindi soprattutto alla prime mosse potrebbe essere molto lento(è consigliato l'uso di chrome).&lt;br /&gt;Mi piacerebbe, se il tempo me lo permetterà fare un bel tutorial.&lt;br /&gt;&lt;br /&gt;&lt;center&gt;&lt;br /&gt;&lt;iframe frameborder="0" marginheight="0" marginwidth="0" height="330" width="210" src="http://maniac.altervista.org/javascript/tris/index.htm"&gt;&lt;/iframe&gt;&lt;br /&gt;&lt;/center&gt;&lt;div class="blogger-post-footer"&gt;&lt;img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7666017211606263195-4828478364826986474?l=sebastianomorando.blogspot.com' alt='' /&gt;&lt;/div&gt;</content><link rel='replies' type='application/atom+xml' href='http://sebastianomorando.blogspot.com/feeds/4828478364826986474/comments/default' title='Commenti sul post'/><link rel='replies' type='text/html' href='http://sebastianomorando.blogspot.com/2011/04/giuoco-del-tris-nella-sua.html#comment-form' title='0 Commenti'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/7666017211606263195/posts/default/4828478364826986474'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/7666017211606263195/posts/default/4828478364826986474'/><link rel='alternate' type='text/html' href='http://sebastianomorando.blogspot.com/2011/04/giuoco-del-tris-nella-sua.html' title='Giuoco del tris nella sua implementazione in javascript'/><author><name>Sebastiano</name><uri>http://www.blogger.com/profile/01831508688749249165</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='27' height='32' src='http://1.bp.blogspot.com/_qeL4KjG6c7o/TLBa1_ybjiI/AAAAAAAAAFc/HP3rT1czlv4/S220/miafoto.jpg'/></author><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-7666017211606263195.post-5020285684254996151</id><published>2011-01-07T01:00:00.000-08:00</published><updated>2011-01-07T01:00:29.089-08:00</updated><title type='text'>NewCastleBrown Vive</title><content type='html'>Sul blog della Maniac Productions, &lt;a href="http://maniacproductions.blogspot.com/2010/12/detective-newcastlebrown-parte-ii.html"&gt;puntata 2&lt;/a&gt; e &lt;a href="http://maniacproductions.blogspot.com/2011/01/detective-newcastlebrown-parte-tre.html"&gt;puntata 3&lt;/a&gt; .&lt;div class="blogger-post-footer"&gt;&lt;img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7666017211606263195-5020285684254996151?l=sebastianomorando.blogspot.com' alt='' /&gt;&lt;/div&gt;</content><link rel='replies' type='application/atom+xml' href='http://sebastianomorando.blogspot.com/feeds/5020285684254996151/comments/default' title='Commenti sul post'/><link rel='replies' type='text/html' href='http://sebastianomorando.blogspot.com/2011/01/newcastlebrown-vive.html#comment-form' title='0 Commenti'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/7666017211606263195/posts/default/5020285684254996151'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/7666017211606263195/posts/default/5020285684254996151'/><link rel='alternate' type='text/html' href='http://sebastianomorando.blogspot.com/2011/01/newcastlebrown-vive.html' title='NewCastleBrown Vive'/><author><name>Sebastiano</name><uri>http://www.blogger.com/profile/01831508688749249165</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='27' height='32' src='http://1.bp.blogspot.com/_qeL4KjG6c7o/TLBa1_ybjiI/AAAAAAAAAFc/HP3rT1czlv4/S220/miafoto.jpg'/></author><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-7666017211606263195.post-1437222528730150842</id><published>2010-12-22T10:35:00.001-08:00</published><updated>2010-12-22T10:35:56.994-08:00</updated><title type='text'>Racconti: NewCastleBrown parte prima</title><content type='html'>A swedish melodic noir tale. Un racconto che ho iniziato a scrivere e che pubblico sul blog della Maniac Productions. clicca qui:&amp;nbsp;&lt;a href="http://maniacproductions.blogspot.com/2010/12/detective-newcastlebrown-parte-i.html"&gt;Detective NewCastleBrown&lt;/a&gt;&lt;div class="blogger-post-footer"&gt;&lt;img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7666017211606263195-1437222528730150842?l=sebastianomorando.blogspot.com' alt='' /&gt;&lt;/div&gt;</content><link rel='replies' type='application/atom+xml' href='http://sebastianomorando.blogspot.com/feeds/1437222528730150842/comments/default' title='Commenti sul post'/><link rel='replies' type='text/html' href='http://sebastianomorando.blogspot.com/2010/12/racconti-newcastlebrown-parte-prima.html#comment-form' title='0 Commenti'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/7666017211606263195/posts/default/1437222528730150842'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/7666017211606263195/posts/default/1437222528730150842'/><link rel='alternate' type='text/html' href='http://sebastianomorando.blogspot.com/2010/12/racconti-newcastlebrown-parte-prima.html' title='Racconti: NewCastleBrown parte prima'/><author><name>Sebastiano</name><uri>http://www.blogger.com/profile/01831508688749249165</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='27' height='32' src='http://1.bp.blogspot.com/_qeL4KjG6c7o/TLBa1_ybjiI/AAAAAAAAAFc/HP3rT1czlv4/S220/miafoto.jpg'/></author><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-7666017211606263195.post-9073528414620382614</id><published>2010-10-10T21:20:00.000-07:00</published><updated>2010-10-10T21:24:59.960-07:00</updated><category scheme='http://www.blogger.com/atom/ns#' term='conversione di base'/><category scheme='http://www.blogger.com/atom/ns#' term='binario'/><category scheme='http://www.blogger.com/atom/ns#' term='esadecimale'/><title type='text'>Conversione di Base migliorato</title><content type='html'>Piccola utility in Javascript per convertire numeri nelle basi numeriche più usate nell'informatica.&lt;br /&gt;&lt;br /&gt;&lt;div style="text-align:right;width:300px;"&gt;Decimale:&lt;input id="Decimale" type="text" onkeypress="return soloNumeri(this, event,'0123456789');" onkeyup="scriviDecimale();"/&gt;&lt;br /&gt;Binario: &lt;input id="Binario" type="text" onkeypress="return soloNumeri(this, event,'01');" onkeyup="scriviBinario();"/&gt;&lt;br /&gt;Ottale: &lt;input id="Ottale" type="text" onkeypress="return soloNumeri(this, event,'01234567');" onkeyup="scriviOttale();"/&gt;&lt;br /&gt;Esadecimale: &lt;input id="Esadecimale" type="text" onkeypress="return soloNumeri(this, event,'0123456789abcdefABCDEF');"  onkeyup="scriviEsadecimale();"/&gt;&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;/div&gt;&lt;br /&gt;&lt;script type="text/javascript" src="http://maniac.altervista.org/blog/base.js"&gt;&lt;/script&gt;&lt;div class="blogger-post-footer"&gt;&lt;img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7666017211606263195-9073528414620382614?l=sebastianomorando.blogspot.com' alt='' /&gt;&lt;/div&gt;</content><link rel='replies' type='application/atom+xml' href='http://sebastianomorando.blogspot.com/feeds/9073528414620382614/comments/default' title='Commenti sul post'/><link rel='replies' type='text/html' href='http://sebastianomorando.blogspot.com/2010/10/conversione-di-base-migliorato.html#comment-form' title='0 Commenti'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/7666017211606263195/posts/default/9073528414620382614'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/7666017211606263195/posts/default/9073528414620382614'/><link rel='alternate' type='text/html' href='http://sebastianomorando.blogspot.com/2010/10/conversione-di-base-migliorato.html' title='Conversione di Base migliorato'/><author><name>Sebastiano</name><uri>http://www.blogger.com/profile/01831508688749249165</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='27' height='32' src='http://1.bp.blogspot.com/_qeL4KjG6c7o/TLBa1_ybjiI/AAAAAAAAAFc/HP3rT1czlv4/S220/miafoto.jpg'/></author><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-7666017211606263195.post-150300778257368005</id><published>2010-10-09T04:34:00.000-07:00</published><updated>2010-10-09T04:46:35.260-07:00</updated><category scheme='http://www.blogger.com/atom/ns#' term='ritratti'/><category scheme='http://www.blogger.com/atom/ns#' term='Gandhi'/><title type='text'>Ritratto Gandhi</title><content type='html'>&lt;a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://3.bp.blogspot.com/_qeL4KjG6c7o/TLBVo5eJWeI/AAAAAAAAAEQ/ECtaY7fzA3U/s1600/gandhi.jpg"&gt;&lt;img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 372px; height: 400px;" src="http://3.bp.blogspot.com/_qeL4KjG6c7o/TLBVo5eJWeI/AAAAAAAAAEQ/ECtaY7fzA3U/s400/gandhi.jpg" border="0" alt="" id="BLOGGER_PHOTO_ID_5526010903893989858" /&gt;&lt;/a&gt;Ritratto di Gandhi eseguito sul retro di un foglio usato per esercizi di chimica particolarmente noiosi&lt;div class="blogger-post-footer"&gt;&lt;img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7666017211606263195-150300778257368005?l=sebastianomorando.blogspot.com' alt='' /&gt;&lt;/div&gt;</content><link rel='replies' type='application/atom+xml' href='http://sebastianomorando.blogspot.com/feeds/150300778257368005/comments/default' title='Commenti sul post'/><link rel='replies' type='text/html' href='http://sebastianomorando.blogspot.com/2010/10/ritratto-gandhi.html#comment-form' title='0 Commenti'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/7666017211606263195/posts/default/150300778257368005'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/7666017211606263195/posts/default/150300778257368005'/><link rel='alternate' type='text/html' href='http://sebastianomorando.blogspot.com/2010/10/ritratto-gandhi.html' title='Ritratto Gandhi'/><author><name>Sebastiano</name><uri>http://www.blogger.com/profile/01831508688749249165</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='27' height='32' src='http://1.bp.blogspot.com/_qeL4KjG6c7o/TLBa1_ybjiI/AAAAAAAAAFc/HP3rT1czlv4/S220/miafoto.jpg'/></author><media:thumbnail xmlns:media='http://search.yahoo.com/mrss/' url='http://3.bp.blogspot.com/_qeL4KjG6c7o/TLBVo5eJWeI/AAAAAAAAAEQ/ECtaY7fzA3U/s72-c/gandhi.jpg' height='72' width='72'/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-7666017211606263195.post-2275692805336977901</id><published>2010-10-04T13:17:00.000-07:00</published><updated>2010-10-04T13:18:05.436-07:00</updated><title type='text'>Conversione Binario-Decimale</title><content type='html'>&lt;input type="text" id="campo"/&gt;&lt;br /&gt;&lt;button onclick="cliccaBin();"&gt;da decimale a binario&lt;/button&gt;&lt;br /&gt;&lt;button onclick="cliccaDec();"&gt;da binario a decimale&lt;/button&gt;&lt;br /&gt;&lt;span id="risultato"&gt;&lt;/span&gt;&lt;div class="blogger-post-footer"&gt;&lt;img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7666017211606263195-2275692805336977901?l=sebastianomorando.blogspot.com' alt='' /&gt;&lt;/div&gt;</content><link rel='replies' type='application/atom+xml' href='http://sebastianomorando.blogspot.com/feeds/2275692805336977901/comments/default' title='Commenti sul post'/><link rel='replies' type='text/html' href='http://sebastianomorando.blogspot.com/2010/10/conversione-binario-decimale.html#comment-form' title='0 Commenti'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/7666017211606263195/posts/default/2275692805336977901'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/7666017211606263195/posts/default/2275692805336977901'/><link rel='alternate' type='text/html' href='http://sebastianomorando.blogspot.com/2010/10/conversione-binario-decimale.html' title='Conversione Binario-Decimale'/><author><name>Sebastiano</name><uri>http://www.blogger.com/profile/01831508688749249165</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='27' height='32' src='http://1.bp.blogspot.com/_qeL4KjG6c7o/TLBa1_ybjiI/AAAAAAAAAFc/HP3rT1czlv4/S220/miafoto.jpg'/></author><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-7666017211606263195.post-377077638536391366</id><published>2010-10-01T12:01:00.000-07:00</published><updated>2010-10-01T12:06:43.299-07:00</updated><category scheme='http://www.blogger.com/atom/ns#' term='ambiente'/><category scheme='http://www.blogger.com/atom/ns#' term='cambiamenti climatici'/><title type='text'>Stop Changing the World</title><content type='html'>&lt;object width="480" height="385"&gt;&lt;param name="movie" value="http://www.youtube.com/v/MZniWo1awM0?fs=1&amp;amp;hl=it_IT"&gt;&lt;param name="allowFullScreen" value="true"&gt;&lt;param name="allowscriptaccess" value="always"&gt;&lt;embed src="http://www.youtube.com/v/MZniWo1awM0?fs=1&amp;amp;hl=it_IT" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="480" height="385"&gt;&lt;/embed&gt;&lt;/object&gt;&lt;br /&gt;&lt;br /&gt;Video realizzato per il concorso &lt;a href="http://www.1minutetosavetheworld.com/"&gt;1minutetosavetheworld&lt;/a&gt;&lt;div class="blogger-post-footer"&gt;&lt;img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7666017211606263195-377077638536391366?l=sebastianomorando.blogspot.com' alt='' /&gt;&lt;/div&gt;</content><link rel='replies' type='application/atom+xml' href='http://sebastianomorando.blogspot.com/feeds/377077638536391366/comments/default' title='Commenti sul post'/><link rel='replies' type='text/html' href='http://sebastianomorando.blogspot.com/2010/10/stop-changing-world.html#comment-form' title='0 Commenti'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/7666017211606263195/posts/default/377077638536391366'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/7666017211606263195/posts/default/377077638536391366'/><link rel='alternate' type='text/html' href='http://sebastianomorando.blogspot.com/2010/10/stop-changing-world.html' title='Stop Changing the World'/><author><name>Sebastiano</name><uri>http://www.blogger.com/profile/01831508688749249165</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='27' height='32' src='http://1.bp.blogspot.com/_qeL4KjG6c7o/TLBa1_ybjiI/AAAAAAAAAFc/HP3rT1czlv4/S220/miafoto.jpg'/></author><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-7666017211606263195.post-7636276552994379516</id><published>2010-09-30T12:16:00.000-07:00</published><updated>2010-10-01T05:12:16.704-07:00</updated><category scheme='http://www.blogger.com/atom/ns#' term='crittografia'/><category scheme='http://www.blogger.com/atom/ns#' term='numeri primi'/><category scheme='http://www.blogger.com/atom/ns#' term='fattorizzazione'/><title type='text'>Generatore tavola numeri primi</title><content type='html'>Un numero primo è un numero naturale maggiore di 1 divisibile solo per 1 o per sè stesso.&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div&gt;Nonostante sembri un concetto elementare è un argomento ancora vivo nella matematica moderna che presenta risvolti non ancora compresi. Trovare numeri primi con molte cifre rappresenta una sfida molto interessante nel campo della crittografia. La &lt;a href="http://it.wikipedia.org/wiki/RSA"&gt;crittografia RSA&lt;/a&gt;, inventata e studiata nel MIT negli anni '60, basa la sua sicurezza sulla difficoltà di fattorizzare numeri primi con molte cifre.&lt;/div&gt;&lt;div&gt;&lt;br /&gt;&lt;/div&gt;&lt;div&gt;Uno dei metodi più semplici per trovare numeri primi è il &lt;a href="http://it.wikipedia.org/wiki/Crivello_di_Eratostene"&gt;crivello di Eratostene&lt;/a&gt;, che consente di trovare tutti numeri primi minori di un numero dato.&lt;/div&gt;&lt;div&gt;Il form sottostante è una semplice implementazione del crivello di Eratostene in Javascript, inserite un qualsiasi numero nel campo, cliccate il tasto e il programma genererà una tavola dei numeri primi minori del numero dato.&lt;/div&gt;&lt;div&gt;&lt;br /&gt;Attenzione a non inserire numeri maggiori di 10000!&lt;br /&gt;Il crivello di Eratostene è un metodo semplice ma non certo efficiente, per numeri troppo grandi potrebbe occupare troppe risorse del vostro pc e farlo rallentare all'inverosimile!&lt;br /&gt;&lt;br /&gt;&lt;input type="text" id="campo"&gt;&lt;button id="tasto" onclick="esegui();"&gt;Genera&lt;/button&gt;&lt;br /&gt;&lt;span id="date"&gt;&lt;/span&gt;&lt;br /&gt;&lt;div id="risultato"&gt;&lt;/div&gt;&lt;/div&gt;&lt;div class="blogger-post-footer"&gt;&lt;img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7666017211606263195-7636276552994379516?l=sebastianomorando.blogspot.com' alt='' /&gt;&lt;/div&gt;</content><link rel='replies' type='application/atom+xml' href='http://sebastianomorando.blogspot.com/feeds/7636276552994379516/comments/default' title='Commenti sul post'/><link rel='replies' type='text/html' href='http://sebastianomorando.blogspot.com/2010/09/trova-divisori-primi-di-un-numero.html#comment-form' title='0 Commenti'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/7666017211606263195/posts/default/7636276552994379516'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/7666017211606263195/posts/default/7636276552994379516'/><link rel='alternate' type='text/html' href='http://sebastianomorando.blogspot.com/2010/09/trova-divisori-primi-di-un-numero.html' title='Generatore tavola numeri primi'/><author><name>Sebastiano</name><uri>http://www.blogger.com/profile/01831508688749249165</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='27' height='32' src='http://1.bp.blogspot.com/_qeL4KjG6c7o/TLBa1_ybjiI/AAAAAAAAAFc/HP3rT1czlv4/S220/miafoto.jpg'/></author><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-7666017211606263195.post-8349906559297691007</id><published>2010-06-20T06:00:00.000-07:00</published><updated>2010-09-30T13:15:24.661-07:00</updated><category scheme='http://www.blogger.com/atom/ns#' term='tessuto epiteliale'/><category scheme='http://www.blogger.com/atom/ns#' term='epitelio'/><category scheme='http://www.blogger.com/atom/ns#' term='istologia'/><title type='text'>Istologia - Tessuto epiteliale</title><content type='html'>-&lt;span style="font-weight: bold; color: rgb(153, 0, 0);"&gt;derivazione embrionale&lt;/span&gt;-&lt;br /&gt;dall'endoderma: tonache mucose&lt;br /&gt;mesoderma: epitelio delle tonache sierose e delle vie genitali&lt;br /&gt;ectoderma: cute&lt;br /&gt;&lt;br /&gt;-&lt;span style="font-weight: bold; color: rgb(153, 0, 0);"&gt;distribuzione&lt;/span&gt;-&lt;br /&gt;rivestimento dei vasi sanguigni e linfatici, tonache dei visceri, rivestimento del corpo(cute), vie respiratorie,&lt;br /&gt;vescica, uretere, reni,canali dell'apparato riproduttore&lt;br /&gt;&lt;br /&gt;-&lt;span style="font-weight: bold; color: rgb(153, 0, 0);"&gt;classificazione in base alla funzione&lt;/span&gt;-&lt;br /&gt;1. rivestimento e protezione: epiteli e mesoteli&lt;br /&gt;2. assorbimento: endoteli del tratto digerente&lt;br /&gt;3. secrezione: ghiandole&lt;br /&gt;4. contrattilità: mioepiteli&lt;br /&gt;5. ricezione sensoriale: neuroepiteli&lt;br /&gt;&lt;br /&gt;-&lt;span style="font-weight: bold; color: rgb(153, 0, 0);"&gt;epiteli di rivestimento&lt;/span&gt;-&lt;br /&gt;possono essere monostratificati o pluristratificati&lt;br /&gt;&lt;br /&gt;-&lt;span style="font-weight: bold; color: rgb(255, 102, 0);"&gt;monostratificati&lt;/span&gt;-&lt;br /&gt;epiteli monostratificati si suddividono in pavimentosi(o squamosi), cilindrici, cubici&lt;br /&gt;&lt;span style="font-weight: bold;"&gt; &lt;/span&gt;&lt;span style="color: rgb(255, 153, 0); font-weight: bold;"&gt;pavimentosi&lt;/span&gt;: si tratta di cellule di forma schiacciata e allungata strettamente connesse tra loro&lt;br /&gt;           esempi: endotelio dei vasi sanguigni e linfatici, mesotelio delle cavità sierose&lt;br /&gt;&lt;span style="color: rgb(255, 153, 0); font-weight: bold;"&gt; cilindrico&lt;/span&gt;: cellule di forme cilindrica strettamente annesse, nuclei leggermente allungati&lt;br /&gt;         possono essere ciliati, esempio intestino tenue&lt;br /&gt;&lt;span style="color: rgb(255, 153, 0); font-weight: bold;"&gt; cubico&lt;/span&gt;: cellule di forma cubica, nucleo tondo, esempio epitelio superficiale dell'ovaio&lt;br /&gt;&lt;br /&gt;-&lt;span style="color: rgb(255, 102, 0); font-weight: bold;"&gt;epiteli pluristratificati&lt;/span&gt;-&lt;br /&gt;&lt;span style="font-weight: bold; color: rgb(255, 153, 0);"&gt;pavimentoso stratificato cheratinizzato&lt;/span&gt;: le cellule più vicine al connettivo sottostante&lt;br /&gt;sono cubiche o cilindriche, andando verso lo strato superiore si appiattiscono sempre di più&lt;br /&gt;le cellule superficiali sono morte, i loro nuclei non più discernibili e sono ricche di&lt;br /&gt;cheratina&lt;br /&gt;&lt;br /&gt;&lt;span style="color: rgb(255, 153, 0); font-weight: bold;"&gt; pavimentoso stratificato non cheratinizzato&lt;/span&gt;: caratteristico delle delle cavità umide(bocca,esofago,vagina)&lt;br /&gt;ha uno strato superficiale di cellule anocra provviste di nuclei&lt;br /&gt;&lt;br /&gt;&lt;span style="font-weight: bold;"&gt; &lt;/span&gt;&lt;span style="color: rgb(255, 153, 0); font-weight: bold;"&gt;colonnare stratificato&lt;/span&gt;: molto raro, si trova nella congiuntiva oculare e nei dotti più cospicui delle ghiandole salivari&lt;br /&gt;&lt;br /&gt;&lt;span style="color: rgb(255, 153, 0); font-weight: bold;"&gt; epitelio di transizione&lt;/span&gt;: ha uno strato superficiale di cellule cupoliformi(o a ombrello)&lt;br /&gt;&lt;br /&gt;&lt;span style="font-weight: bold;"&gt; &lt;/span&gt;&lt;span style="color: rgb(255, 102, 0); font-weight: bold;"&gt;epitelio pseudostratificato:&lt;/span&gt; tutte le sue cellule di inseriscono sulla lamina basale ma non tutte raggiungono la superficie&lt;br /&gt;&lt;br /&gt;-&lt;span style="color: rgb(153, 0, 0); font-weight: bold;"&gt;strutture cellulari ed extracellulari tipiche&lt;/span&gt;-&lt;br /&gt;le cellule epiteliali hanno una polarizzazione specifica: alla base si legano grazie agli emidesmosomi alla lamina basale, lateralmente si congiungono ad altre cellule epiteliali tramite giunzioni cellulari ed apicalmente possono presentere microvilli se si tratta di epiteli assorbenti o vesciole se si tratta di epiteli secernenti, le ghiandole hanno una struttura citologica specifica di cui parleremo più avanti&lt;br /&gt;&lt;br /&gt;&lt;span style="color: rgb(255, 102, 0); font-weight: bold;"&gt;lamina basale&lt;/span&gt;: sottile strato di proteine filamentose visibile solo al microscopio elettronico che separa l'epitelio dal connettivo sottostante.Componenti della sua struttura reticolare sono: collagene di tipo IV, laminina ed entactina(glicoproteine), vari proteoglicani&lt;br /&gt;La lamina basale è fissata al connettivo sottostante da collagene di tipo VII&lt;br /&gt;funzioni:&lt;br /&gt;1.sostegno strutturale&lt;br /&gt;2.filtrazione di sostanze&lt;br /&gt;3.possono influire sulla polarità cellulare&lt;br /&gt;4.legare i fattori di crescita&lt;br /&gt;5.influire sulla trasduzione dei segnali&lt;br /&gt;6.guidare migrazioni cellulari&lt;br /&gt;&lt;br /&gt;&lt;span style="font-weight: bold; color: rgb(255, 102, 0);"&gt;giunzioni intercellulari&lt;/span&gt;&lt;br /&gt;strutture della membrana plasmatica che consentono la comunicazione e la coesione tra le cellule&lt;br /&gt;sebbene presenti in altri tipologie di cellule, in quelle epiteliali sono particolarmente abbondanti e importanti in quanto forniscono al tessuto elasticità, resistenza e &lt;span style="font-weight: bold;"&gt;impermeabilità&lt;/span&gt;.&lt;div class="blogger-post-footer"&gt;&lt;img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/7666017211606263195-8349906559297691007?l=sebastianomorando.blogspot.com' alt='' /&gt;&lt;/div&gt;</content><link rel='replies' type='application/atom+xml' href='http://sebastianomorando.blogspot.com/feeds/8349906559297691007/comments/default' title='Commenti sul post'/><link rel='replies' type='text/html' href='http://sebastianomorando.blogspot.com/2010/06/istologia-tessuto-epiteliale.html#comment-form' title='0 Commenti'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/7666017211606263195/posts/default/8349906559297691007'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/7666017211606263195/posts/default/8349906559297691007'/><link rel='alternate' type='text/html' href='http://sebastianomorando.blogspot.com/2010/06/istologia-tessuto-epiteliale.html' title='Istologia - Tessuto epiteliale'/><author><name>Sebastiano</name><uri>http://www.blogger.com/profile/01831508688749249165</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='27' height='32' src='http://1.bp.blogspot.com/_qeL4KjG6c7o/TLBa1_ybjiI/AAAAAAAAAFc/HP3rT1czlv4/S220/miafoto.jpg'/></author><thr:total>0</thr:total></entry></feed>
