1900-3803 1900-3803 S1900-38032017000200286 10.18041/entramado.2017v13n2.26227 Cuba 00 12 2017 00 12 2017 13 2 286 299

1 2010 25 1 1 1-8 2 2015 5 2 2 17-28 3 2013 42 9 9 1673-91 4 1978 5 2014 6 2009 Tiajin, China 7 2010 China 8 1993 22 6 6 681-1697 9 2007 10 2010 Washington DC, USA 11 2004 29 2 2 197-214 12 2015 13 2003 2nd 102-9 14 2009 15 2016 5 1 1 35-42 16 2009 5 12 12 2153-64 17 2006 86 8 8 2115-22 18 2006 153 5 5 683-90 19 2011 2 3 3 175-83 20 2003 47 1 1 90-100 21 2003 22 2002 38 1 1 346-51 23 1954 49 268 268 847-52 24 2015 25 2 2 19-28 25 2016 37 2 2 54-66 26 2016 a 22 4 4 1-17 27 2016 b 15 . 2 . 2 1-15 28 2017 29 2017 a 30 2014 13 3 3 86-98. 48 31 2016 a 3 7 7 96-103 32 2016 b 4 8 8 7-11 33 2016 c 27 1, 1, 61-76 34 2015 18 3-13 35 2016 15 2 2 52-61 36 2005 5 4 4 379-401 37 2014 47 38 2013 5 5 5 1528-32 39 2010 1915-8 40 1995 41 2011 34-116 42 1996 Michigan, USA 43 1997 Alberta, Canada 44 2004 45 2015 40 3 3 643-56 46 2015 24 1 1 87-92 47 2009 48 2015 8 1 1 255-61 49 2013 50 2011 131 11 11 916-23 51 2011 132 10 10 886-92 52 2013 4 3 3 125-33 53 2001 37 3 3 1108 54 2016 64 2 2 475-84 55 1980 127 3 3 225-8 56 2017 4 I I 1-11 57 2015 44 2 2 461-80 58 2000 36 4 4 1377-86 59 1991 60 2007 53 61 2013 2nd 62 2011 a 47 I I 516-7 63 2011 b 64 2013 7 2 2 I53-63 65 2014 7 6 6 231-61 66 2015 4 574 67 2014