diff --git a/landingPages/publication/publication.service.ts b/landingPages/publication/publication.service.ts
index d2ae86ee..7da01070 100644
--- a/landingPages/publication/publication.service.ts
+++ b/landingPages/publication/publication.service.ts
@@ -182,9 +182,9 @@ export class PublicationService {
       this.publicationInfo.journal['journal'] = data[5].content;
       this.publicationInfo.journal['issn'] = data[5].issn;
       this.publicationInfo.journal['lissn'] = data[5].lissn;
-      this.publicationInfo.journal['volume'] = data[5].vol;
-      this.publicationInfo.journal['start_page'] = data[5].sp;
-      this.publicationInfo.journal['end_page'] = data[5].ep;
+      this.publicationInfo.journal['volume'] = (data[5].vol>0)?data[5].vol:0;
+      this.publicationInfo.journal['start_page'] = (data[5].sp > 0)?data[5].sp:null;
+      this.publicationInfo.journal['end_page'] = (data[5].ep > 0)?data[5].ep:null;
     }
 
     if(data[6] != null) {
diff --git a/sharedComponents/navigationBar.component.html b/sharedComponents/navigationBar.component.html
index 6fab48fd..f450d7d2 100644
--- a/sharedComponents/navigationBar.component.html
+++ b/sharedComponents/navigationBar.component.html
@@ -123,7 +123,7 @@
    <div [class]="'uk-navbar-container uk-sticky uk-navbar-transparent uk-light '+portal+'-menu'" uk-sticky="" media="768" cls-active="uk-active uk-navbar-sticky" animation="uk-animation-slide-top" top=".tm-header + [class*=&quot;uk-section&quot;]" cls-inactive="uk-navbar-transparent uk-light" style="">
       <div class="uk-container uk-container-expand">
          <nav class="uk-navbar" uk-navbar="{&quot;align&quot;:&quot;left&quot;}">
-            <div class="uk-navbar-left  uk-visible@l  ">
+            <div class="uk-navbar-left  uk-visible@l   uk-width-1-3">
                <a  routerLinkActive="uk-link" routerLink="/"  class="uk-logo uk-navbar-item">
 
                  <img *ngIf="!community" src="{{logoPath}}logo-large-{{portal}}.png" alt="OpenAIRE" class="uk-responsive-height">
@@ -131,7 +131,7 @@
                  <div *ngIf="community" class="uk-margin-left uk-text-large"> {{community.name}} </div>
                </a>
             </div>
-            <div class="uk-navbar-left  uk-visible@m uk-hidden@l">
+            <div class="uk-navbar-left  uk-visible@m uk-hidden@l uk-width-1-3">
                <a  routerLinkActive="uk-link" routerLink="/"  class="uk-logo uk-navbar-item">
                <img *ngIf="!community" src="{{logoPath}}logo-small-{{portal}}.png" alt="OpenAIRE" class="uk-responsive-height">
                <img *ngIf="community && community.logoUrl && community.logoUrl.length > 0" src="{{community.logoUrl}}"  class="uk-responsive-height">
diff --git a/utils/properties/searchFields.ts b/utils/properties/searchFields.ts
index 995ecfa3..d2d5e746 100644
--- a/utils/properties/searchFields.ts
+++ b/utils/properties/searchFields.ts
@@ -10,7 +10,7 @@ export class SearchFields {
     "relproject","resultacceptanceyear",
    "resultbestaccessright", "instancetypename", "resultlanguagename", "community","resulthostingdatasource"];
 
-     public RESULT_ADVANCED_FIELDS:string[] = ["q","resulttitle","resultauthor","resultpublisher",
+     public RESULT_ADVANCED_FIELDS:string[] = ["q","resulttitle","resultauthor","resultsubject","resultpublisher",
      "resultbestaccessright","community","collectedfromdatasourceid","resulthostingdatasourceid", "resultdateofacceptance",
           "relfunder",
      "relfundinglevel0_id","relfundinglevel1_id","relfundinglevel2_id",
@@ -19,6 +19,7 @@ export class SearchFields {
            ["q"]:{name:"All fields", type:"keyword", param:"q", operator: "op", equalityOperator: "="},
          ["resulttitle"]:{name:"Title", type:"keyword", param:"title", operator: "tt", equalityOperator: "="},
          ["resultauthor"]:{name:"Author", type:"keyword", param:"author", operator: "at", equalityOperator: "="},
+         ["resultsubject"]:{name:"Subject", type:"keyword", param:"subject", operator: "sb", equalityOperator: "="},
          ["resultpublisher"]:{name:"Publisher", type:"keyword", param:"publisher", operator: "pb", equalityOperator: "="},
          ["pid"]:{name:"PID", type:"keyword", param:"pid", operator: "pd", equalityOperator: " = "},
          ["resulthostingdatasourceid"]:{name:"Hosting Content Provider", type:"entity", param:"hostedBy", operator: "hs", equalityOperator: " exact "},
diff --git a/utils/string-utils.class.ts b/utils/string-utils.class.ts
index ece1ce3e..4414ecfa 100644
--- a/utils/string-utils.class.ts
+++ b/utils/string-utils.class.ts
@@ -124,6 +124,11 @@ export class StringUtils{
           return '%' + ('00' + c.charCodeAt(0).toString(16)).slice(-2);
       }).join(''));
   }
-
+  private emailValidator(email : any): boolean {
+      if (email.match("^[a-z0-9._%+-]+@[a-z0-9.-]+\.[a-z]{2,4}$"))
+          return true;
+      else
+          return false;
+  }
 
 }