{"id":1564,"date":"2023-05-26T20:54:32","date_gmt":"2023-05-26T17:54:32","guid":{"rendered":"https:\/\/www.civil.ihu.gr\/?post_type=course&#038;p=1564"},"modified":"2023-11-14T17:52:22","modified_gmt":"2023-11-14T15:52:22","slug":"%cf%85%ce%b4%cf%81005","status":"publish","type":"course","link":"https:\/\/www.civil.ihu.gr\/en\/courses\/%cf%85%ce%b4%cf%81005\/","title":{"rendered":"Underground Hydraulic and Hydrology"},"author":6,"template":"","meta":{"_acf_changed":false},"semester":[39],"course_type":[13],"class_list":["post-1564","course","type-course","status-publish","hentry","semester-39","course_type-special_background"],"acf":{"code":"\u03a5\u0394\u03a1005","semester":39,"level":"1","teaching_activities":{"activity_1":{"description":"Lectures","weekly_hrs":4,"ects":4},"activity_2":{"description":"","weekly_hrs":"","ects":""},"activity_3":{"description":"","weekly_hrs":"","ects":""},"activity_4":{"description":"","weekly_hrs":"","ects":""},"activity_5":{"description":"","weekly_hrs":"","ects":""}},"type":13,"language":"\u0395\u03bb\u03bb\u03b7\u03bd\u03b9\u03ba\u03ac","erasmus":"\u039d\u03b1\u03b9","url":"","prerequisites":[1509,1530],"instructors":"","coordinator":"","content":"- Basic properties and classification of aquifers and hydraulic parameters. Soil characteristics. Darcy's\r\nlaw. Coefficient of permeability\r\n- Continuity equation. The mathematical model of groundwater flows. Types of boundaries and\r\nboundary conditions\r\n- Confined and free surface flows towards ditches and wells\r\n- Systems of wells. Method of images. Seepage force and the effect of piping\r\n- Hydrologic cycle, hydrological processes and water balances\r\n- Spatial and temporal rainfall distribution at catchments\u2019 scale\r\n- Measurements and analysis of rainfall and stream discharges\r\n- Prevision of floods and droughts. Simulation of watersheds\r\n- Estimation of hydrologic data for engineering works","goals":"The successful completion of the course will enable students to: - Clarify the laws of hydraulics linked\r\nwith the saturated water flow in the ground; - Interpret the hydrological cycle and natural\r\nhydrological processes; - Define the spatial and temporal rainfall distribution at catchments\u2019 scale; -\r\nAnalyze groundwater flows towards ditches and wells from confined and unconfined aquifers; - Apply\r\napproximate solutions for flow in saturated porous medium; - Evaluate the required technical works\r\nrequired for hydrological studies\u2019 development.","skills":"-Search for, analysis and synthesis of data and information, with the use of the necessary technology\r\n-Adapting to new situations\r\n-Decision-making\r\n-Working independently\r\n-Team work\r\n-Working in an interdisciplinary environment\r\n-Project planning and management\r\n-Criticism and self-criticism\r\n-Production of free, creative and inductive thinking","teaching_methods":"Face to face.","ict_usage":"Powerpoint presentations, e-learning platform for\r\neducational material","teaching_organization":{"activity_1":{"description":"Lectures","workload":40},"activity_2":{"description":"Practice\/exercises","workload":12},"activity_3":{"description":"Educational visits","workload":2},"activity_4":{"description":"Individual Study","workload":52},"activity_5":{"description":"","workload":""},"activity_6":{"description":"","workload":""}},"students_evaluation":"Formative evaluation consisted of:\r\n- Non-compulsory intermediate essays (5 to 6 in total) (30%\r\nof final mark) focused on solving problems :\r\n- Final written exams (70% of final mark) consisted of:\r\na) multiple choice and short answer questions on the basic\r\ntheory of the course (10% of the final mark)\r\nb) Solving of problems\/questions (60% of the final mark)","bib_textbooks":"<ul>\r\n \t<li>\u039a\u03bf\u03c5\u03c4\u03c3\u03bf\u03b3\u03b9\u03ac\u03bd\u03bd\u03b7\u03c2 \u0394\u03b7\u03bc\u03ae\u03c4\u03c1\u03b9\u03bf\u03c2, \u039e\u03b1\u03bd\u03b8\u03cc\u03c0\u03bf\u03c5\u03bb\u03bf\u03c2 \u0398\u03b5\u03bc\u03b9\u03c3\u03c4\u03bf\u03ba\u03bb\u03ae\u03c2, \u03a4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ae \u03a5\u03b4\u03c1\u03bf\u03bb\u03bf\u03b3\u03af\u03b1, \u0395\u03ba\u03b4\u03cc\u03c3\u03b5\u03b9\u03c2\r\n\u0395\u03bb\u03bb\u03b7\u03bd\u03b9\u03ba\u03ac \u0391\u03ba\u03b1\u03b4\u03b7\u03bc\u03b1\u03ca\u03ba\u03ac \u0397\u03bb\u03b5\u03ba\u03c4\u03c1\u03bf\u03bd\u03b9\u03ba\u03ac \u03a3\u03c5\u03b3\u03b3\u03c1\u03ac\u03bc\u03bc\u03b1\u03c4\u03b1 \u03ba\u03b1\u03b9 \u0392\u03bf\u03b7\u03b8\u03ae\u03bc\u03b1\u03c4\u03b1 - \u0391\u03c0\u03bf\u03b8\u03b5\u03c4\u03ae\u03c1\u03b9\u03bf \"\u039a\u03ac\u03bb\u03bb\u03b9\u03c0\u03bf\u03c2\",\r\nISBN: 978-960-603-506-7. \u039a\u03c9\u03b4\u03b9\u03ba\u03cc\u03c2 \u0392\u03b9\u03b2\u03bb\u03af\u03bf\u03c5 \u03c3\u03c4\u03bf\u03bd \u0395\u03cd\u03b4\u03bf\u03be\u03bf: 59390290<\/li>\r\n \t<li>\u03a4\u03bf\u03bb\u03af\u03ba\u03b1\u03c2 \u0394\u03b7\u03bc\u03ae\u03c4\u03c1\u03b7\u03c2 \u039a., \u03a5\u03c0\u03cc\u03b3\u03b5\u03b9\u03b1 \u03c5\u03b4\u03c1\u03b1\u03c5\u03bb\u03b9\u03ba\u03ae, \u0395\u03ba\u03b4\u03cc\u03c3\u03b5\u03b9\u03c2 \u0395\u03c0\u03af\u03ba\u03b5\u03bd\u03c4\u03c1\u03bf, 2005 (1\u03b7 \u03ad\u03ba\u03b4\u03bf\u03c3\u03b7), ISBN: 978- 960-88731-7-9. \u039a\u03c9\u03b4\u03b9\u03ba\u03cc\u03c2 \u0392\u03b9\u03b2\u03bb\u03af\u03bf\u03c5 \u03c3\u03c4\u03bf\u03bd \u0395\u03cd\u03b4\u03bf\u03be\u03bf: 15196<\/li>\r\n \t<li>\u039b\u03b1\u03c4\u03b9\u03bd\u03cc\u03c0\u03bf\u03c5\u03bb\u03bf\u03c2 \u03a0\u03b5\u03c1\u03b9\u03ba\u03bb\u03ae\u03c2, \u03a5\u0394\u03a1\u0391\u03a5\u039b\u0399\u039a\u0397 \u03a4\u03a9\u039d \u03a5\u03a0\u039f\u0393\u0395\u0399\u03a9\u039d \u03a1\u039f\u03a9\u039d, \u0395\u03ba\u03b4\u03cc\u03c3\u03b5\u03b9\u03c2 \u03a7\u0391\u03a1\u0399\u03a3 \u0395\u03a0\u0395, 2006 (1\u03b7\r\n\u03ad\u03ba\u03b4\u03bf\u03c3\u03b7), ISBN: 978-960-98154-5-1. \u039a\u03c9\u03b4\u03b9\u03ba\u03cc\u03c2 \u0392\u03b9\u03b2\u03bb\u03af\u03bf\u03c5 \u03c3\u03c4\u03bf\u03bd \u0395\u03cd\u03b4\u03bf\u03be\u03bf: 6861<\/li>\r\n \t<li>\u03a4\u03c3\u03b1\u03ba\u03af\u03c1\u03b7\u03c2 \u0393., \u03a5\u03b4\u03b1\u03c4\u03b9\u03ba\u03bf\u03af \u03c0\u03cc\u03c1\u03bf\u03b9 : I \u03a4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ae \u03c5\u03b4\u03c1\u03bf\u03bb\u03bf\u03b3\u03af\u03b1 \u03ba\u03b1\u03b9 \u03b4\u03b9\u03b1\u03c7\u03b5\u03af\u03c1\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03c5\u03b4\u03b1\u03c4\u03b9\u03ba\u03ce\u03bd \u03c0\u03cc\u03c1\u03c9\u03bd,\r\n\u0395\u03ba\u03b4\u03cc\u03c3\u03b5\u03b9\u03c2 \u03a3\u03a5\u039c\u039c\u0395\u03a4\u03a1\u0399\u0391, 2012 (1\u03b7 \u03ad\u03ba\u03b4\u03bf\u03c3\u03b7), ISBN: 978-960-266-380-6 \u039a\u03c9\u03b4\u03b9\u03ba\u03cc\u03c2 \u0392\u03b9\u03b2\u03bb\u03af\u03bf\u03c5 \u03c3\u03c4\u03bf\u03bd \u0395\u03cd\u03b4\u03bf\u03be\u03bf: 22771790<\/li>\r\n \t<li>\u03a4\u03c3\u03b1\u03ba\u03af\u03c1\u03b7\u03c2 \u0393., \u03a5\u03b4\u03b1\u03c4\u03b9\u03ba\u03bf\u03af \u03a0\u03cc\u03c1\u03bf\u03b9 \u0399\u0399: \u0395\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u03a4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ae\u03c2 \u03a5\u03b4\u03c1\u03bf\u03bb\u03bf\u03b3\u03af\u03b1\u03c2, \u0395\u03ba\u03b4\u03cc\u03c3\u03b5\u03b9\u03c2 \u03a3\u03c5\u03bc\u03bc\u03b5\u03c4\u03c1\u03af\u03b1, 2009\r\n(1\u03b7 \u03ad\u03ba\u03b4\u03bf\u03c3\u03b7), ISBN: 978-960-266-266-3 \u039a\u03c9\u03b4\u03b9\u03ba\u03cc\u03c2 \u0392\u03b9\u03b2\u03bb\u03af\u03bf\u03c5 \u03c3\u03c4\u03bf\u03bd \u0395\u03cd\u03b4\u03bf\u03be\u03bf: 45490<\/li>\r\n \t<li>\u039c\u03c0\u03b1\u03bb\u03c4\u03ac\u03c2 \u0395\u03c5\u03ac\u03b3\u03b3\u03b5\u03bb\u03bf\u03c2, \u039c\u03b9\u03bc\u03af\u03ba\u03bf\u03c5 \u039c\u03b1\u03c1\u03af\u03b1, \u03a4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ae \u03a5\u03b4\u03c1\u03bf\u03bb\u03bf\u03b3\u03af\u03b1, \u0395\u03ba\u03b4\u03cc\u03c3\u03b5\u03b9\u03c2 \u03a0\u03b1\u03c0\u03b1\u03c3\u03c9\u03c4\u03b7\u03c1\u03af\u03bf\u03c5, 2018\r\n(6\u03b7 \u03ad\u03ba\u03b4\u03bf\u03c3\u03b7), ISBN: 978-960-491-125-7. \u039a\u03c9\u03b4\u03b9\u03ba\u03cc\u03c2 \u0392\u03b9\u03b2\u03bb\u03af\u03bf\u03c5 \u03c3\u03c4\u03bf\u03bd \u0395\u03cd\u03b4\u03bf\u03be\u03bf: 77117411<\/li>\r\n \t<li>\u039c\u03c5\u03c1\u03c9\u03bd\u03af\u03b4\u03b7\u03c2 \u0394\u03b7\u03bc\u03ae\u03c4\u03c1\u03b9\u03bf\u03c2, \u03a5\u03b4\u03c1\u03bf\u03bb\u03bf\u03b3\u03af\u03b1 \u03ba\u03b1\u03b9 \u03a5\u03b4\u03c1\u03b1\u03c5\u03bb\u03b9\u03ba\u03ae, \u0395\u03ba\u03b4\u03cc\u03c3\u03b5\u03b9\u03c2 \u03a4\u0396\u0399\u039f\u039b\u0391, 2021 (1\u03b7 \u03ad\u03ba\u03b4\u03bf\u03c3\u03b7),\r\nISBN: 978-960-418-884-0. \u039a\u03c9\u03b4\u03b9\u03ba\u03cc\u03c2 \u0392\u03b9\u03b2\u03bb\u03af\u03bf\u03c5 \u03c3\u03c4\u03bf\u03bd \u0395\u03cd\u03b4\u03bf\u03be\u03bf: 94688988<\/li>\r\n \t<li>- \u039a\u03bf\u03c5\u03c4\u03c3\u03bf\u03b3\u03b9\u03ac\u03bd\u03bd\u03b7\u03c2 \u0394\u03b7\u03bc\u03ae\u03c4\u03c1\u03b9\u03bf\u03c2, \u039e\u03b1\u03bd\u03b8\u03cc\u03c0\u03bf\u03c5\u03bb\u03bf\u03c2 \u0398\u03b5\u03bc\u03b9\u03c3\u03c4\u03bf\u03ba\u03bb\u03ae\u03c2, \u03a4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ae \u03a5\u03b4\u03c1\u03bf\u03bb\u03bf\u03b3\u03af\u03b1, \u0395\u03ba\u03b4\u03cc\u03c3\u03b5\u03b9\u03c2 \u0395\u03bb\u03bb\u03b7\u03bd\u03b9\u03ba\u03ac\r\n\u0391\u03ba\u03b1\u03b4\u03b7\u03bc\u03b1\u03ca\u03ba\u03ac \u0397\u03bb\u03b5\u03ba\u03c4\u03c1\u03bf\u03bd\u03b9\u03ba\u03ac \u03a3\u03c5\u03b3\u03b3\u03c1\u03ac\u03bc\u03bc\u03b1\u03c4\u03b1 \u03ba\u03b1\u03b9 \u0392\u03bf\u03b7\u03b8\u03ae\u03bc\u03b1\u03c4\u03b1 - \u0391\u03c0\u03bf\u03b8\u03b5\u03c4\u03ae\u03c1\u03b9\u03bf \"\u039a\u03ac\u03bb\u03bb\u03b9\u03c0\u03bf\u03c2\", ISBN: 978-960-603-\r\n506-7. \u039a\u03c9\u03b4\u03b9\u03ba\u03cc\u03c2 \u0392\u03b9\u03b2\u03bb\u03af\u03bf\u03c5 \u03c3\u03c4\u03bf\u03bd \u0395\u03cd\u03b4\u03bf\u03be\u03bf: 59390290\r\n- \u03a4\u03bf\u03bb\u03af\u03ba\u03b1\u03c2 \u0394\u03b7\u03bc\u03ae\u03c4\u03c1\u03b7\u03c2 \u039a., \u03a5\u03c0\u03cc\u03b3\u03b5\u03b9\u03b1 \u03c5\u03b4\u03c1\u03b1\u03c5\u03bb\u03b9\u03ba\u03ae, \u0395\u03ba\u03b4\u03cc\u03c3\u03b5\u03b9\u03c2 \u0395\u03c0\u03af\u03ba\u03b5\u03bd\u03c4\u03c1\u03bf, 2005 (1\u03b7 \u03ad\u03ba\u03b4\u03bf\u03c3\u03b7), ISBN: 978-960-88731-\r\n7-9. \u039a\u03c9\u03b4\u03b9\u03ba\u03cc\u03c2 \u0392\u03b9\u03b2\u03bb\u03af\u03bf\u03c5 \u03c3\u03c4\u03bf\u03bd \u0395\u03cd\u03b4\u03bf\u03be\u03bf: 15196\r\n- \u039b\u03b1\u03c4\u03b9\u03bd\u03cc\u03c0\u03bf\u03c5\u03bb\u03bf\u03c2 \u03a0\u03b5\u03c1\u03b9\u03ba\u03bb\u03ae\u03c2, \u03a5\u0394\u03a1\u0391\u03a5\u039b\u0399\u039a\u0397 \u03a4\u03a9\u039d \u03a5\u03a0\u039f\u0393\u0395\u0399\u03a9\u039d \u03a1\u039f\u03a9\u039d, \u0395\u03ba\u03b4\u03cc\u03c3\u03b5\u03b9\u03c2 \u03a7\u0391\u03a1\u0399\u03a3 \u0395\u03a0\u0395, 2006 (1\u03b7 \u03ad\u03ba\u03b4\u03bf\u03c3\u03b7),\r\nISBN: 978-960-98154-5-1. \u039a\u03c9\u03b4\u03b9\u03ba\u03cc\u03c2 \u0392\u03b9\u03b2\u03bb\u03af\u03bf\u03c5 \u03c3\u03c4\u03bf\u03bd \u0395\u03cd\u03b4\u03bf\u03be\u03bf: 6861\r\n- \u03a4\u03c3\u03b1\u03ba\u03af\u03c1\u03b7\u03c2 \u0393., \u03a5\u03b4\u03b1\u03c4\u03b9\u03ba\u03bf\u03af \u03c0\u03cc\u03c1\u03bf\u03b9 : I \u03a4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ae \u03c5\u03b4\u03c1\u03bf\u03bb\u03bf\u03b3\u03af\u03b1 \u03ba\u03b1\u03b9 \u03b4\u03b9\u03b1\u03c7\u03b5\u03af\u03c1\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03c5\u03b4\u03b1\u03c4\u03b9\u03ba\u03ce\u03bd \u03c0\u03cc\u03c1\u03c9\u03bd, \u0395\u03ba\u03b4\u03cc\u03c3\u03b5\u03b9\u03c2\r\n\u03a3\u03a5\u039c\u039c\u0395\u03a4\u03a1\u0399\u0391, 2012 (1\u03b7 \u03ad\u03ba\u03b4\u03bf\u03c3\u03b7), ISBN: 978-960-266-380-6 \u039a\u03c9\u03b4\u03b9\u03ba\u03cc\u03c2 \u0392\u03b9\u03b2\u03bb\u03af\u03bf\u03c5 \u03c3\u03c4\u03bf\u03bd \u0395\u03cd\u03b4\u03bf\u03be\u03bf: 22771790\r\n- \u03a4\u03c3\u03b1\u03ba\u03af\u03c1\u03b7\u03c2 \u0393., \u03a5\u03b4\u03b1\u03c4\u03b9\u03ba\u03bf\u03af \u03a0\u03cc\u03c1\u03bf\u03b9 \u0399\u0399: \u0395\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u03a4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ae\u03c2 \u03a5\u03b4\u03c1\u03bf\u03bb\u03bf\u03b3\u03af\u03b1\u03c2, \u0395\u03ba\u03b4\u03cc\u03c3\u03b5\u03b9\u03c2 \u03a3\u03c5\u03bc\u03bc\u03b5\u03c4\u03c1\u03af\u03b1, 2009 (1\u03b7 \u03ad\u03ba\u03b4\u03bf\u03c3\u03b7),\r\nISBN: 978-960-266-266-3 \u039a\u03c9\u03b4\u03b9\u03ba\u03cc\u03c2 \u0392\u03b9\u03b2\u03bb\u03af\u03bf\u03c5 \u03c3\u03c4\u03bf\u03bd \u0395\u03cd\u03b4\u03bf\u03be\u03bf: 45490\r\n- \u039c\u03c0\u03b1\u03bb\u03c4\u03ac\u03c2 \u0395\u03c5\u03ac\u03b3\u03b3\u03b5\u03bb\u03bf\u03c2, \u039c\u03b9\u03bc\u03af\u03ba\u03bf\u03c5 \u039c\u03b1\u03c1\u03af\u03b1, \u03a4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ae \u03a5\u03b4\u03c1\u03bf\u03bb\u03bf\u03b3\u03af\u03b1, \u0395\u03ba\u03b4\u03cc\u03c3\u03b5\u03b9\u03c2 \u03a0\u03b1\u03c0\u03b1\u03c3\u03c9\u03c4\u03b7\u03c1\u03af\u03bf\u03c5, 2018 (6\u03b7 \u03ad\u03ba\u03b4\u03bf\u03c3\u03b7),\r\nISBN: 978-960-491-125-7. \u039a\u03c9\u03b4\u03b9\u03ba\u03cc\u03c2 \u0392\u03b9\u03b2\u03bb\u03af\u03bf\u03c5 \u03c3\u03c4\u03bf\u03bd \u0395\u03cd\u03b4\u03bf\u03be\u03bf: 77117411\r\n- \u039c\u03c5\u03c1\u03c9\u03bd\u03af\u03b4\u03b7\u03c2 \u0394\u03b7\u03bc\u03ae\u03c4\u03c1\u03b9\u03bf\u03c2, \u03a5\u03b4\u03c1\u03bf\u03bb\u03bf\u03b3\u03af\u03b1 \u03ba\u03b1\u03b9 \u03a5\u03b4\u03c1\u03b1\u03c5\u03bb\u03b9\u03ba\u03ae, \u0395\u03ba\u03b4\u03cc\u03c3\u03b5\u03b9\u03c2 \u03a4\u0396\u0399\u039f\u039b\u0391, 2021 (1\u03b7 \u03ad\u03ba\u03b4\u03bf\u03c3\u03b7), ISBN: 978-960-\r\n418-884-0. \u039a\u03c9\u03b4\u03b9\u03ba\u03cc\u03c2 \u0392\u03b9\u03b2\u03bb\u03af\u03bf\u03c5 \u03c3\u03c4\u03bf\u03bd \u0395\u03cd\u03b4\u03bf\u03be\u03bf: 94688988<\/li>\r\n<\/ul>","bib_journals":""},"_links":{"self":[{"href":"https:\/\/www.civil.ihu.gr\/en\/wp-json\/wp\/v2\/course\/1564","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.civil.ihu.gr\/en\/wp-json\/wp\/v2\/course"}],"about":[{"href":"https:\/\/www.civil.ihu.gr\/en\/wp-json\/wp\/v2\/types\/course"}],"author":[{"embeddable":true,"href":"https:\/\/www.civil.ihu.gr\/en\/wp-json\/wp\/v2\/users\/6"}],"version-history":[{"count":4,"href":"https:\/\/www.civil.ihu.gr\/en\/wp-json\/wp\/v2\/course\/1564\/revisions"}],"predecessor-version":[{"id":2015,"href":"https:\/\/www.civil.ihu.gr\/en\/wp-json\/wp\/v2\/course\/1564\/revisions\/2015"}],"acf:post":[{"embeddable":true,"href":"https:\/\/www.civil.ihu.gr\/en\/wp-json\/wp\/v2\/course\/1530"},{"embeddable":true,"href":"https:\/\/www.civil.ihu.gr\/en\/wp-json\/wp\/v2\/course\/1509"}],"acf:term":[{"embeddable":true,"taxonomy":"course_type","href":"https:\/\/www.civil.ihu.gr\/en\/wp-json\/wp\/v2\/course_type\/13"},{"embeddable":true,"taxonomy":"semester","href":"https:\/\/www.civil.ihu.gr\/en\/wp-json\/wp\/v2\/semester\/39"}],"wp:attachment":[{"href":"https:\/\/www.civil.ihu.gr\/en\/wp-json\/wp\/v2\/media?parent=1564"}],"wp:term":[{"taxonomy":"semester","embeddable":true,"href":"https:\/\/www.civil.ihu.gr\/en\/wp-json\/wp\/v2\/semester?post=1564"},{"taxonomy":"course_type","embeddable":true,"href":"https:\/\/www.civil.ihu.gr\/en\/wp-json\/wp\/v2\/course_type?post=1564"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}