{"id":1545,"date":"2026-05-08T10:11:23","date_gmt":"2026-05-08T10:11:23","guid":{"rendered":"https:\/\/polis.uom.gr\/?p=1545"},"modified":"2026-05-12T08:15:49","modified_gmt":"2026-05-12T08:15:49","slug":"%ce%b4%ce%b9%ce%b1%ce%b8%ce%b5%cf%83%ce%b9%ce%bc%ce%b1-%cf%83%ce%b5-%ce%b2%ce%b9%ce%bd%ce%b5%ce%bf%cf%83%ce%ba%cf%8c%cf%80%ce%b7%cf%83%ce%b7-on-demand-%cf%84%ce%b1-%ce%b4%cf%8d%ce%bf-%cf%83%ce%b5","status":"publish","type":"post","link":"https:\/\/polis.uom.gr\/en\/%ce%b4%ce%b9%ce%b1%ce%b8%ce%b5%cf%83%ce%b9%ce%bc%ce%b1-%cf%83%ce%b5-%ce%b2%ce%b9%ce%bd%ce%b5%ce%bf%cf%83%ce%ba%cf%8c%cf%80%ce%b7%cf%83%ce%b7-on-demand-%cf%84%ce%b1-%ce%b4%cf%8d%ce%bf-%cf%83%ce%b5\/","title":{"rendered":"\u03b4\u03b9\u03b1\u03b8\u03b5\u03c3\u03b9\u03bc\u03b1 ON demand \u03c4\u03b1 \u03b4\u03cd\u03bf \u03c3\u03b5\u03bc\u03b9\u03bd\u03ac\u03c1\u03b9\u03b1 \u03c4\u03b7\u03c2 \u03c6\u03b5\u03c4\u03b9\u03bd\u03ae\u03c2 \u03c0\u03b5\u03c1\u03b9\u03cc\u03b4\u03bf\u03c5 \u00ab\u03a4\u03b9 \u03bc\u03b1\u03c2 \u03ba\u03c1\u03cd\u03b2\u03bf\u03c5\u03bd; \u0394\u03b9\u03ac\u03bb\u03bf\u03b3\u03bf\u03b9 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03a3\u03c5\u03bd\u03c9\u03bc\u03bf\u03c3\u03b9\u03bf\u03bb\u03bf\u03b3\u03af\u03b1\u00bb"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><strong>\u0394\u03b9\u03b1\u03b8\u03ad\u03c3\u03b9\u03bc\u03b1 On Demand \u03c4\u03b1 \u03b4\u03cd\u03bf \u03c3\u03b5\u03bc\u03b9\u03bd\u03ac\u03c1\u03b9\u03b1 \u03c4\u03b7\u03c2 \u03c6\u03b5\u03c4\u03b9\u03bd\u03ae\u03c2 \u03c3\u03b5\u03b9\u03c1\u03ac\u03c2 \u00ab\u03a4\u03b9 \u03bc\u03b1\u03c2 \u03ba\u03c1\u03cd\u03b2\u03bf\u03c5\u03bd; \u2013 \u0394\u03b9\u03ac\u03bb\u03bf\u03b3\u03bf\u03b9 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03a3\u03c5\u03bd\u03c9\u03bc\u03bf\u03c3\u03b9\u03bf\u03bb\u03bf\u03b3\u03af\u03b1\u00bb<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u03a4\u03b1 \u03b4\u03cd\u03bf \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03c4\u03c5\u03b1\u03ba\u03ac \u03c3\u03b5\u03bc\u03b9\u03bd\u03ac\u03c1\u03b9\u03b1 \u03c4\u03b7\u03c2 \u03c6\u03b5\u03c4\u03b9\u03bd\u03ae\u03c2 \u03c0\u03b5\u03c1\u03b9\u03cc\u03b4\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03bb\u03ad\u03bf\u03bd \u03b4\u03b9\u03b1\u03b8\u03ad\u03c3\u03b9\u03bc\u03b1 \u03ba\u03b1\u03b9 \u03c3\u03b5 \u03b2\u03b9\u03bd\u03c4\u03b5\u03bf\u03c3\u03ba\u03cc\u03c0\u03b7\u03c3\u03b7 (on demand), \u03b3\u03b9\u03b1 \u03cc\u03c3\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03cc\u03c3\u03bf\u03c5\u03c2 \u03b4\u03b5\u03bd \u03bc\u03c0\u03cc\u03c1\u03b5\u03c3\u03b1\u03bd \u03bd\u03b1 \u03c4\u03b1 \u03c0\u03b1\u03c1\u03b1\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03ae\u03c3\u03bf\u03c5\u03bd \u03b6\u03c9\u03bd\u03c4\u03b1\u03bd\u03ac \u03ae \u03b5\u03c0\u03b9\u03b8\u03c5\u03bc\u03bf\u03cd\u03bd \u03bd\u03b1 \u03c4\u03b1 \u03be\u03b1\u03bd\u03b1\u03b4\u03bf\u03cd\u03bd.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0394\u03b7\u03bc\u03ae\u03c4\u03c1\u03b7\u03c2 \u039b\u03ad\u03bd\u03b7\u03c2<\/strong><br><em>\u00ab\u039f\u03b9 \u03b8\u03b5\u03c9\u03c1\u03af\u03b5\u03c2 \u03c3\u03c5\u03bd\u03c9\u03bc\u03bf\u03c3\u03af\u03b1\u03c2 \u03c9\u03c2 \u03bd\u03b5\u03c9\u03c4\u03b5\u03c1\u03b9\u03ba\u03ae \u03ba\u03c1\u03b1\u03c4\u03b9\u03ba\u03ae \u03b9\u03b4\u03b5\u03bf\u03bb\u03bf\u03b3\u03af\u03b1\u00bb<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u039d\u03af\u03ba\u03bf\u03c2 \u0394\u03b5\u03bc\u03b5\u03c1\u03c4\u03b6\u03ae\u03c2 &amp; \u0399\u03c9\u03c3\u03ae\u03c6 \u03a7\u03b1\u03bb\u03b1\u03b2\u03b1\u03b6\u03ae\u03c2 (\u0395\u039a\u03a0\u0391)<\/strong><br><em>\u00ab\u0397 \u03c3\u03c5\u03bd\u03c9\u03bc\u03bf\u03c3\u03b9\u03bf\u03bb\u03bf\u03b3\u03af\u03b1 \u03c3\u03c4\u03bf \u03bc\u03b9\u03ba\u03c1\u03bf\u03c3\u03ba\u03cc\u03c0\u03b9\u03bf: \u03c3\u03c5\u03b6\u03ae\u03c4\u03b7\u03c3\u03b7 \u03bc\u03b5 \u03b1\u03c6\u03bf\u03c1\u03bc\u03ae \u03c4\u03bf \u201c\u03a8\u03b5\u03c5\u03b4\u03bf\u03b5\u03c0\u03b9\u03c3\u03c4\u03ae\u03bc\u03b5\u03c2 \u03ba\u03b1\u03b9 \u0398\u03b5\u03c9\u03c1\u03af\u03b5\u03c2 \u03a3\u03c5\u03bd\u03c9\u03bc\u03bf\u03c3\u03af\u03b1\u03c2\u201d\u00bb<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u03a4\u03b1 \u03c3\u03b5\u03bc\u03b9\u03bd\u03ac\u03c1\u03b9\u03b1 \u03b5\u03be\u03b5\u03c4\u03ac\u03b6\u03bf\u03c5\u03bd \u03c4\u03b7 \u03c3\u03c5\u03bd\u03c9\u03bc\u03bf\u03c3\u03b9\u03bf\u03bb\u03bf\u03b3\u03af\u03b1 \u03c9\u03c2 \u03ba\u03bf\u03b9\u03bd\u03c9\u03bd\u03b9\u03ba\u03cc, \u03c0\u03bf\u03bb\u03b9\u03c4\u03b9\u03ba\u03cc \u03ba\u03b1\u03b9 \u03c0\u03bf\u03bb\u03b9\u03c4\u03b9\u03c3\u03bc\u03b9\u03ba\u03cc \u03c6\u03b1\u03b9\u03bd\u03cc\u03bc\u03b5\u03bd\u03bf, \u03bc\u03ad\u03c3\u03b1 \u03b1\u03c0\u03cc \u03b4\u03b9\u03b5\u03c0\u03b9\u03c3\u03c4\u03b7\u03bc\u03bf\u03bd\u03b9\u03ba\u03ad\u03c2 \u03c0\u03c1\u03bf\u03c3\u03b5\u03b3\u03b3\u03af\u03c3\u03b5\u03b9\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03cd\u03b3\u03c7\u03c1\u03bf\u03bd\u03b1 \u03c0\u03b1\u03c1\u03b1\u03b4\u03b5\u03af\u03b3\u03bc\u03b1\u03c4\u03b1.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u03a0\u03b1\u03c1\u03b1\u03ba\u03bf\u03bb\u03bf\u03cd\u03b8\u03b7\u03c3\u03b7 on demand:<br><a href=\"https:\/\/www.youtube.com\/@polis-ks6qj\">https:\/\/www.youtube.com\/@polis-ks6qj<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>\u0394\u03b9\u03b1\u03b8\u03ad\u03c3\u03b9\u03bc\u03b1 On Demand \u03c4\u03b1 \u03b4\u03cd\u03bf \u03c3\u03b5\u03bc\u03b9\u03bd\u03ac\u03c1\u03b9\u03b1 \u03c4\u03b7\u03c2 \u03c6\u03b5\u03c4\u03b9\u03bd\u03ae\u03c2 \u03c3\u03b5\u03b9\u03c1\u03ac\u03c2 \u00ab\u03a4\u03b9 \u03bc\u03b1\u03c2 \u03ba\u03c1\u03cd\u03b2\u03bf\u03c5\u03bd; \u2013 \u0394\u03b9\u03ac\u03bb\u03bf\u03b3\u03bf\u03b9 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03a3\u03c5\u03bd\u03c9\u03bc\u03bf\u03c3\u03b9\u03bf\u03bb\u03bf\u03b3\u03af\u03b1\u00bb \u03a4\u03b1 \u03b4\u03cd\u03bf \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03c4\u03c5\u03b1\u03ba\u03ac \u03c3\u03b5\u03bc\u03b9\u03bd\u03ac\u03c1\u03b9\u03b1 \u03c4\u03b7\u03c2 \u03c6\u03b5\u03c4\u03b9\u03bd\u03ae\u03c2 \u03c0\u03b5\u03c1\u03b9\u03cc\u03b4\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03bb\u03ad\u03bf\u03bd \u03b4\u03b9\u03b1\u03b8\u03ad\u03c3\u03b9\u03bc\u03b1 \u03ba\u03b1\u03b9 \u03c3\u03b5 \u03b2\u03b9\u03bd\u03c4\u03b5\u03bf\u03c3\u03ba\u03cc\u03c0\u03b7\u03c3\u03b7 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1551,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[10],"tags":[],"class_list":["post-1545","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-anakoinoseis"],"uagb_featured_image_src":{"full":["https:\/\/polis.uom.gr\/wp-content\/uploads\/2026\/05\/\u03b1\u03c6\u03b9\u03c3\u03b1-\u0394\u03b5\u03bc\u03b5\u03c1\u03c4\u03b6\u03ae\u03c2-\u03b4\u03b9\u03b1\u03b3\u03ce\u03bd\u03b9\u03b1-under-2MB.jpg",1054,1492,false],"thumbnail":["https:\/\/polis.uom.gr\/wp-content\/uploads\/2026\/05\/\u03b1\u03c6\u03b9\u03c3\u03b1-\u0394\u03b5\u03bc\u03b5\u03c1\u03c4\u03b6\u03ae\u03c2-\u03b4\u03b9\u03b1\u03b3\u03ce\u03bd\u03b9\u03b1-under-2MB-150x150.jpg",150,150,true],"medium":["https:\/\/polis.uom.gr\/wp-content\/uploads\/2026\/05\/\u03b1\u03c6\u03b9\u03c3\u03b1-\u0394\u03b5\u03bc\u03b5\u03c1\u03c4\u03b6\u03ae\u03c2-\u03b4\u03b9\u03b1\u03b3\u03ce\u03bd\u03b9\u03b1-under-2MB-212x300.jpg",212,300,true],"medium_large":["https:\/\/polis.uom.gr\/wp-content\/uploads\/2026\/05\/\u03b1\u03c6\u03b9\u03c3\u03b1-\u0394\u03b5\u03bc\u03b5\u03c1\u03c4\u03b6\u03ae\u03c2-\u03b4\u03b9\u03b1\u03b3\u03ce\u03bd\u03b9\u03b1-under-2MB-768x1087.jpg",768,1087,true],"large":["https:\/\/polis.uom.gr\/wp-content\/uploads\/2026\/05\/\u03b1\u03c6\u03b9\u03c3\u03b1-\u0394\u03b5\u03bc\u03b5\u03c1\u03c4\u03b6\u03ae\u03c2-\u03b4\u03b9\u03b1\u03b3\u03ce\u03bd\u03b9\u03b1-under-2MB-723x1024.jpg",723,1024,true],"1536x1536":["https:\/\/polis.uom.gr\/wp-content\/uploads\/2026\/05\/\u03b1\u03c6\u03b9\u03c3\u03b1-\u0394\u03b5\u03bc\u03b5\u03c1\u03c4\u03b6\u03ae\u03c2-\u03b4\u03b9\u03b1\u03b3\u03ce\u03bd\u03b9\u03b1-under-2MB.jpg",1054,1492,false],"2048x2048":["https:\/\/polis.uom.gr\/wp-content\/uploads\/2026\/05\/\u03b1\u03c6\u03b9\u03c3\u03b1-\u0394\u03b5\u03bc\u03b5\u03c1\u03c4\u03b6\u03ae\u03c2-\u03b4\u03b9\u03b1\u03b3\u03ce\u03bd\u03b9\u03b1-under-2MB.jpg",1054,1492,false],"trp-custom-language-flag":["https:\/\/polis.uom.gr\/wp-content\/uploads\/2026\/05\/\u03b1\u03c6\u03b9\u03c3\u03b1-\u0394\u03b5\u03bc\u03b5\u03c1\u03c4\u03b6\u03ae\u03c2-\u03b4\u03b9\u03b1\u03b3\u03ce\u03bd\u03b9\u03b1-under-2MB-8x12.jpg",8,12,true],"mailpoet_newsletter_max":["https:\/\/polis.uom.gr\/wp-content\/uploads\/2026\/05\/\u03b1\u03c6\u03b9\u03c3\u03b1-\u0394\u03b5\u03bc\u03b5\u03c1\u03c4\u03b6\u03ae\u03c2-\u03b4\u03b9\u03b1\u03b3\u03ce\u03bd\u03b9\u03b1-under-2MB.jpg",1054,1492,false]},"uagb_author_info":{"display_name":"maria_iosif","author_link":"https:\/\/polis.uom.gr\/en\/author\/maria_iosif\/"},"uagb_comment_info":0,"uagb_excerpt":"\u0394\u03b9\u03b1\u03b8\u03ad\u03c3\u03b9\u03bc\u03b1 On Demand \u03c4\u03b1 \u03b4\u03cd\u03bf \u03c3\u03b5\u03bc\u03b9\u03bd\u03ac\u03c1\u03b9\u03b1 \u03c4\u03b7\u03c2 \u03c6\u03b5\u03c4\u03b9\u03bd\u03ae\u03c2 \u03c3\u03b5\u03b9\u03c1\u03ac\u03c2 \u00ab\u03a4\u03b9 \u03bc\u03b1\u03c2 \u03ba\u03c1\u03cd\u03b2\u03bf\u03c5\u03bd; \u2013 \u0394\u03b9\u03ac\u03bb\u03bf\u03b3\u03bf\u03b9 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03a3\u03c5\u03bd\u03c9\u03bc\u03bf\u03c3\u03b9\u03bf\u03bb\u03bf\u03b3\u03af\u03b1\u00bb \u03a4\u03b1 \u03b4\u03cd\u03bf \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03c4\u03c5\u03b1\u03ba\u03ac \u03c3\u03b5\u03bc\u03b9\u03bd\u03ac\u03c1\u03b9\u03b1 \u03c4\u03b7\u03c2 \u03c6\u03b5\u03c4\u03b9\u03bd\u03ae\u03c2 \u03c0\u03b5\u03c1\u03b9\u03cc\u03b4\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03bb\u03ad\u03bf\u03bd \u03b4\u03b9\u03b1\u03b8\u03ad\u03c3\u03b9\u03bc\u03b1 \u03ba\u03b1\u03b9 \u03c3\u03b5 \u03b2\u03b9\u03bd\u03c4\u03b5\u03bf\u03c3\u03ba\u03cc\u03c0\u03b7\u03c3\u03b7 [&hellip;]","_links":{"self":[{"href":"https:\/\/polis.uom.gr\/en\/wp-json\/wp\/v2\/posts\/1545","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/polis.uom.gr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/polis.uom.gr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/polis.uom.gr\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/polis.uom.gr\/en\/wp-json\/wp\/v2\/comments?post=1545"}],"version-history":[{"count":6,"href":"https:\/\/polis.uom.gr\/en\/wp-json\/wp\/v2\/posts\/1545\/revisions"}],"predecessor-version":[{"id":1557,"href":"https:\/\/polis.uom.gr\/en\/wp-json\/wp\/v2\/posts\/1545\/revisions\/1557"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/polis.uom.gr\/en\/wp-json\/wp\/v2\/media\/1551"}],"wp:attachment":[{"href":"https:\/\/polis.uom.gr\/en\/wp-json\/wp\/v2\/media?parent=1545"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/polis.uom.gr\/en\/wp-json\/wp\/v2\/categories?post=1545"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/polis.uom.gr\/en\/wp-json\/wp\/v2\/tags?post=1545"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}