public function loadfactorsAction()
 {
     $cdattributeexaminationmaterial = $this->_request->getParam('cdattributeexaminationmaterial');
     $factorModel = new FactorModel();
     $dataFactors = $factorModel->fetchAll($factorModel->getAttributeVlrefs($cdattributeexaminationmaterial));
     $this->view->factors = $dataFactors->toArray();
 }