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	<title>Red Social de Noticias</title>
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		<title>Red Social de Noticias</title>
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		<title>Xarxes socials</title>
		<link>http://socialnetworknews.wordpress.com/2008/10/07/xarxes-socials/</link>
		<comments>http://socialnetworknews.wordpress.com/2008/10/07/xarxes-socials/#comments</comments>
		<pubDate>Tue, 07 Oct 2008 11:20:25 +0000</pubDate>
		<dc:creator>scnn</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

		<guid isPermaLink="false">http://socialnetworknews.wordpress.com/2008/10/07/xarxes-socials/</guid>
		<description><![CDATA[Una xarxa social &#233;s una estructura social que es pot representar en forma d&#8217;un o diversos grafs en el qual els nodes representen individus (de vegades denominats actors) i les arestes relacions entre ells. Les relacions poden ser de diferent tipus, com intercanvis financers, amistat, relacions sexuals, o rutes a&#232;ries. Te&#242;ricament no hi ha l&#237;mit [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=socialnetworknews.wordpress.com&amp;blog=3009983&amp;post=380&amp;subd=socialnetworknews&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
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<p>      Una <b>xarxa social</b> &#233;s una <a title="Estructura social" href="http://ca.wikipedia.org/wiki/Estructura_social">estructura       social</a> que es pot representar en forma d&#8217;un o diversos <a title="Grafs (encara no existeix)" class="new" href="http://ca.wikipedia.org/w/index.php?title=Grafs&amp;action=edit&amp;redlink=1">grafs</a>       en el qual     </p>
<p>      els <a title="Node (xarxa) (encara no existeix)" class="new" href="http://ca.wikipedia.org/w/index.php?title=Node_%28xarxa%29&amp;action=edit&amp;redlink=1">nodes</a>       representen individus (de vegades denominats <i>actors</i>) i les <a title="Aresta (encara no existeix)" class="new" href="http://ca.wikipedia.org/w/index.php?title=Aresta&amp;action=edit&amp;redlink=1">arestes</a>       relacions entre ells.     </p>
<p>      Les relacions poden ser de diferent tipus, com intercanvis <a title="Finances (encara no existeix)" class="new" href="http://ca.wikipedia.org/w/index.php?title=Finances&amp;action=edit&amp;redlink=1">financers</a>,       <a title="Amistat" href="http://ca.wikipedia.org/wiki/Amistat">amistat</a>,       <a title="Relacions sexuals" class="mw-redirect" href="http://ca.wikipedia.org/wiki/Relacions_sexuals">relacions       sexuals</a>, o <a title="Ruta aèria (encara no existeix)" class="new" href="http://ca.wikipedia.org/w/index.php?title=Ruta_a%C3%A8ria&amp;action=edit&amp;redlink=1">rutes       a&#232;ries</a>.     </p>
<p>      Te&#242;ricament no hi ha l&#237;mit per als nodes que poden compondre una xarxa       per&#242; el <a title="Nombre de Dunbar (encara no existeix)" class="new" href="http://ca.wikipedia.org/w/index.php?title=Nombre_de_Dunbar&amp;action=edit&amp;redlink=1">nombre       de Dunbar</a> limita les     </p>
<p>      connexions estables a 150 membres, a partir d&#8217;aqu&#237; les relacions serien       fr&#224;gils i canviants.    </p>
<p>      La xarxa pot tenir un sol centre, diversos o caracteritzar-se per la       tend&#232;ncia a agrupar diverses subxarxes sense     </p>
<p>      centre reconegut, com podria ser la blocosfera. Aquestes xarxes       s&#8217;anomenen distribu&#239;des.     </p>
<p>      Alexander Bard encuny&#224; el terme de netocr&#224;cia per explicar el       repartiment de poder o prestigi en aquestes xarxes.    </p>
<p>      Alguns dels estudiosos m&#233;s destacats de les xarxes socials s&#243;n Georg       Simmel, Harrison White, Barry Wellman o <a title="David de Ugarte (encara no existeix)" class="new" href="http://ca.wikipedia.org/w/index.php?title=David_de_Ugarte&amp;action=edit&amp;redlink=1">David       de Ugarte</a>.    </p>
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<p>        http://ca.wikipedia.org/wiki/Xarxa_social      </p>
<p> By | <a href="null">Drafts</a></p></p>
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			<media:title type="html">scnn</media:title>
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		<title>B/Velles novetats… toca pensar…</title>
		<link>http://socialnetworknews.wordpress.com/2008/07/17/bvelles-novetats%e2%80%a6-toca-pensar%e2%80%a6/</link>
		<comments>http://socialnetworknews.wordpress.com/2008/07/17/bvelles-novetats%e2%80%a6-toca-pensar%e2%80%a6/#comments</comments>
		<pubDate>Thu, 17 Jul 2008 16:00:20 +0000</pubDate>
		<dc:creator>pavila</dc:creator>
				<category><![CDATA[Català]]></category>

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		<description><![CDATA[Avui he vist uns vídeos que em van enviar: A Vision of Students Today Information R/evolution The Machine is Us/ing US i m&#8217;han agradat! a part dels missatges, el que més m&#8217;ha agradat és la forma de presentar-los&#8230; que traduït a l&#8217;era digital, l&#8217;XML ja el tenia vist, però el CSS n&#8217;ha fet una bona [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=socialnetworknews.wordpress.com&amp;blog=3009983&amp;post=373&amp;subd=socialnetworknews&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
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<p><a href="http://socialnetworknews.files.wordpress.com/2008/07/wpid-pensar1.png"><img class="alignleft" style="border:0 none;float:left;margin:5px;" src="http://guaita.files.wordpress.com/2008/04/pensar.png?w=103&#038;h=110&#038;h=110" border="0" alt="" width="103" height="110" align="left" /></a>Avui he vist uns <strong>vídeos</strong> que em van enviar:</p>
<p><a href="http://es.youtube.com/watch?v=dGCJ46vyR9o&#38;feature=related">A Vision of Students Today</a></p>
<p><a href="http://es.youtube.com/watch?v=-4CV05HyAbM&#38;feature=user">Information R/evolution</a></p>
<p><a href="http://es.youtube.com/watch?v=NLlGopyXT_g&#38;feature=user">The Machine is Us/ing US</a></p>
<p>i m&#8217;han agradat! a part dels <strong>missatges</strong>, el que més m&#8217;ha agradat és la <strong>forma</strong> de presentar-los&#8230;</p>
<p>que traduït a l&#8217;era digital, l&#8217;<strong>XML</strong> ja el tenia vist, però el <strong>CSS</strong> n&#8217;ha fet una bona posada en escena&#8230;</p>
<p>o en llenguatge musical, la <strong>partitura</strong> era bona i l&#8217;<strong>interpret</strong> excel·lent&#8230;.</p>
<p>sovint penso que <em><strong>&#8220;tot canvia per a que tot resti&#8221;</strong></em> &#8211;sembla que ho va dir un tal Heràclides&#8211;, al veure el vídeo dels joves &#8220;desafiant amb les seves  veritats quotidianes&#8221; i els comentaris &#8220;reaccionaris&#8221; que sovint fan els &#8220;més madurs&#8221;&#8230; he recordat que Aristòtil ja deia <em><strong>&#8220;Què en farem d&#8217;aquest jovent?&#8221;</strong></em>&#8230;</p>
<p>així que crec, que només ens queda <strong>REpensar</strong>&#8230;</p>
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<p> By | <a href="http://guaita.wordpress.com/2008/04/30/videos_noves_tecnologies/">Guaita</a></p></p>
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			<media:title type="html">pavila</media:title>
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