diff --git a/disciplines/isq.ttl b/disciplines/isq.ttl
index a75779fb..106e0b7d 100644
--- a/disciplines/isq.ttl
+++ b/disciplines/isq.ttl
@@ -1913,7 +1913,7 @@ pH = −10 log(a_OH-)"""@en ;
 
 ###  http://emmo.info/emmo#EMMO_4024a7f8_2991_4d80_bcc9_63705aa0c750
 :EMMO_4024a7f8_2991_4d80_bcc9_63705aa0c750 rdf:type owl:Class ;
-                                           rdfs:subClassOf :EMMO_cd2cd0de_e0cc_4ef1_b27e_2e88db027bac ;
+                                           rdfs:subClassOf :EMMO_a242d3e9_c6d3_411e_a667_71ffbc248a1a ;
                                            :EMMO_1f1b164d_ec6a_4faa_8d5e_88bda62316cc "https://qudt.org/vocab/quantitykind/Displacement" ;
                                            :EMMO_26bf1bef_d192_4da6_b0eb_d2209698fb54 "https://www.wikidata.org/wiki/Q190291" ;
                                            :EMMO_50c298c2_55a2_4068_b3ac_4e948c33181f "https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-01-29" ;
@@ -1998,7 +1998,7 @@ pH = −10 log(a_OH-)"""@en ;
 
 ###  http://emmo.info/emmo#EMMO_4312cae4_03ba_457e_b35d_0671a7db350c
 :EMMO_4312cae4_03ba_457e_b35d_0671a7db350c rdf:type owl:Class ;
-                                           rdfs:subClassOf :EMMO_cd2cd0de_e0cc_4ef1_b27e_2e88db027bac ;
+                                           rdfs:subClassOf :EMMO_a242d3e9_c6d3_411e_a667_71ffbc248a1a ;
                                            :EMMO_26bf1bef_d192_4da6_b0eb_d2209698fb54 "https://www.wikidata.org/wiki/Q192388" ;
                                            :EMMO_50c298c2_55a2_4068_b3ac_4e948c33181f "https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=102-03-15" ;
                                            :EMMO_6dd685dd_1895_46e4_b227_be9f7d643c25 "https://dbpedia.org/page/Position_(geometry)" ;
@@ -4138,6 +4138,7 @@ where g is the appropriate g factor, μ is mostly the Bohr magneton or nuclear m
                                            :EMMO_50c298c2_55a2_4068_b3ac_4e948c33181f "https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=113-03-61" ;
                                            :EMMO_8de5d5bf_db1c_40ac_b698_095ba3b18578 "4-18" ;
                                            :EMMO_967080e5_2f42_4eb2_a3a9_c58143e835f9 "Ratio of transverse strain to axial strain."@en ;
+                                           skos:altLabel "PoissonsRatio"@en ;
                                            skos:prefLabel "PoissonNumber"@en .
 
 
@@ -4721,7 +4722,11 @@ where g is the appropriate g factor, μ is mostly the Bohr magneton or nuclear m
 ###  http://emmo.info/emmo#EMMO_a1bd0bfc_5464_43ce_a1a2_947b58dc0f89
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                                            rdfs:subClassOf :EMMO_4024a7f8_2991_4d80_bcc9_63705aa0c750 ,
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+                                                           :EMMO_c29603f5_95e8_42f5_ab0c_f3bcf3166d53 ,
+                                                           [ rdf:type owl:Restriction ;
+                                                             owl:onProperty :EMMO_bed1d005_b04e_4a90_94cf_02bc678a8569 ;
+                                                             owl:someValuesFrom :EMMO_b3600e73_3e05_479d_9714_c041c3acf5cc
+                                                           ] ;
                                            :EMMO_1f1b164d_ec6a_4faa_8d5e_88bda62316cc "https://qudt.org/vocab/quantitykind/LatticeVector" ;
                                            :EMMO_26bf1bef_d192_4da6_b0eb_d2209698fb54 "https://www.wikidata.org/wiki/Q105435234" ;
                                            :EMMO_8de5d5bf_db1c_40ac_b698_095ba3b18578 "12-1.1" ;
@@ -6279,7 +6284,11 @@ Conductivity is equeal to the resiprocal of resistivity."""@en ;
 ###  http://emmo.info/emmo#EMMO_da4ea7e3_6e60_410b_a209_6ea735a6b10c
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                                            rdfs:subClassOf :EMMO_4024a7f8_2991_4d80_bcc9_63705aa0c750 ,
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+                                                           :EMMO_c29603f5_95e8_42f5_ab0c_f3bcf3166d53 ,
+                                                           [ rdf:type owl:Restriction ;
+                                                             owl:onProperty :EMMO_bed1d005_b04e_4a90_94cf_02bc678a8569 ;
+                                                             owl:someValuesFrom :EMMO_b3600e73_3e05_479d_9714_c041c3acf5cc
+                                                           ] ;
                                            :EMMO_1f1b164d_ec6a_4faa_8d5e_88bda62316cc "https://qudt.org/vocab/quantitykind/BurgersVector" ;
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                                            :EMMO_8de5d5bf_db1c_40ac_b698_095ba3b18578 "12-6" ;