Warning message
- Warning: Undefined array key "filter-title" in gavias_edupia_form_views_exposed_form_alter() (line 11 of themes/gavias_edupia/includes/form.php).
gavias_edupia_form_views_exposed_form_alter(Array, Object, 'views_exposed_form') (Line: 449) Drupal\Core\Theme\ThemeManager->alterForTheme(Object, 'form', Array, Object, 'views_exposed_form') (Line: 458) Drupal\Core\Theme\ThemeManager->alter(Array, Array, Object, 'views_exposed_form') (Line: 837) Drupal\Core\Form\FormBuilder->prepareForm('views_exposed_form', Array, Object) (Line: 279) Drupal\Core\Form\FormBuilder->buildForm('\Drupal\views\Form\ViewsExposedForm', Object) (Line: 134) Drupal\views\Plugin\views\exposed_form\ExposedFormPluginBase->renderExposedForm() (Line: 1238) Drupal\views\ViewExecutable->build() (Line: 387) Drupal\views\Plugin\views\display\PathPluginBase->execute() (Line: 180) Drupal\views\Plugin\views\display\Page->execute() (Line: 1630) Drupal\views\ViewExecutable->executeDisplay('page_1', Array) (Line: 77) Drupal\views\Element\View::preRenderViewElement(Array) call_user_func_array(Array, Array) (Line: 101) Drupal\Core\Render\Renderer->doTrustedCallback(Array, Array, 'Render #pre_render callbacks must be methods of a class that implements \Drupal\Core\Security\TrustedCallbackInterface or be an anonymous function. The callback was %s. See https://www.drupal.org/node/2966725', 'exception', 'Drupal\Core\Render\Element\RenderCallbackInterface') (Line: 781) Drupal\Core\Render\Renderer->doCallback('#pre_render', Array, Array) (Line: 372) Drupal\Core\Render\Renderer->doRender(Array, ) (Line: 200) Drupal\Core\Render\Renderer->render(Array, ) (Line: 241) Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() (Line: 573) Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 242) Drupal\Core\Render\MainContent\HtmlRenderer->prepare(Array, Object, Object) (Line: 132) Drupal\Core\Render\MainContent\HtmlRenderer->renderResponse(Array, Object, Object) (Line: 90) Drupal\Core\EventSubscriber\MainContentViewSubscriber->onViewRenderArray(Object, 'kernel.view', Object) call_user_func(Array, Object, 'kernel.view', Object) (Line: 142) Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch(Object, 'kernel.view') (Line: 163) Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 80) Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 57) Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 47) Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 191) Drupal\page_cache\StackMiddleware\PageCache->fetch(Object, 1, 1) (Line: 128) Drupal\page_cache\StackMiddleware\PageCache->lookup(Object, 1, 1) (Line: 82) Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 47) Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 52) Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 23) Stack\StackedHttpKernel->handle(Object, 1, 1) (Line: 706) Drupal\Core\DrupalKernel->handle(Object) (Line: 16) - Warning: Trying to access array offset on value of type null in gavias_edupia_form_views_exposed_form_alter() (line 11 of themes/gavias_edupia/includes/form.php).
gavias_edupia_form_views_exposed_form_alter(Array, Object, 'views_exposed_form') (Line: 449) Drupal\Core\Theme\ThemeManager->alterForTheme(Object, 'form', Array, Object, 'views_exposed_form') (Line: 458) Drupal\Core\Theme\ThemeManager->alter(Array, Array, Object, 'views_exposed_form') (Line: 837) Drupal\Core\Form\FormBuilder->prepareForm('views_exposed_form', Array, Object) (Line: 279) Drupal\Core\Form\FormBuilder->buildForm('\Drupal\views\Form\ViewsExposedForm', Object) (Line: 134) Drupal\views\Plugin\views\exposed_form\ExposedFormPluginBase->renderExposedForm() (Line: 1238) Drupal\views\ViewExecutable->build() (Line: 387) Drupal\views\Plugin\views\display\PathPluginBase->execute() (Line: 180) Drupal\views\Plugin\views\display\Page->execute() (Line: 1630) Drupal\views\ViewExecutable->executeDisplay('page_1', Array) (Line: 77) Drupal\views\Element\View::preRenderViewElement(Array) call_user_func_array(Array, Array) (Line: 101) Drupal\Core\Render\Renderer->doTrustedCallback(Array, Array, 'Render #pre_render callbacks must be methods of a class that implements \Drupal\Core\Security\TrustedCallbackInterface or be an anonymous function. The callback was %s. See https://www.drupal.org/node/2966725', 'exception', 'Drupal\Core\Render\Element\RenderCallbackInterface') (Line: 781) Drupal\Core\Render\Renderer->doCallback('#pre_render', Array, Array) (Line: 372) Drupal\Core\Render\Renderer->doRender(Array, ) (Line: 200) Drupal\Core\Render\Renderer->render(Array, ) (Line: 241) Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() (Line: 573) Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 242) Drupal\Core\Render\MainContent\HtmlRenderer->prepare(Array, Object, Object) (Line: 132) Drupal\Core\Render\MainContent\HtmlRenderer->renderResponse(Array, Object, Object) (Line: 90) Drupal\Core\EventSubscriber\MainContentViewSubscriber->onViewRenderArray(Object, 'kernel.view', Object) call_user_func(Array, Object, 'kernel.view', Object) (Line: 142) Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch(Object, 'kernel.view') (Line: 163) Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 80) Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 57) Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 47) Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 191) Drupal\page_cache\StackMiddleware\PageCache->fetch(Object, 1, 1) (Line: 128) Drupal\page_cache\StackMiddleware\PageCache->lookup(Object, 1, 1) (Line: 82) Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 47) Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 52) Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 23) Stack\StackedHttpKernel->handle(Object, 1, 1) (Line: 706) Drupal\Core\DrupalKernel->handle(Object) (Line: 16)
School of Education Publications
| Year | Abstract/Paper | Journal | Author(s) |
|---|---|---|---|
| 2013 | Influence of nitrogen fertilizer rates and harvesting intervals on clonal tea green leaf fatty acids levels in the Lake Victoria basin of Kenya. | Journal of Food, Agriculture and Environment, 3 (3&4): 667-674. |
Owuor, P.O.; Okal, A.W.; Kamau, D.M.; Msomba, S.W.; Uwimana, M.A.; Kamunya, S.M.; Mang’uro, L.O.A. |
| 2005 | Solution of the Coulomb scattering potential problem by method of contour integration and change appropriate functions. | African Journal of Science, 6(2), 77-83. (African Network of Scientific and Technical Institutions) |
Manyala, R.O.; Genga, R.O. |
| 2006 | The potential of solar chimney for application in rural areas of developing countries. | Fuel, 85, 2561-2566. (Elsevier) |
Onyango, F.N.; Ochieng’, R.M. |
| 2007 | Determination of global absorptivity and emissivity of some opaque bulk materials using an integrating sphere calorimeter without ports. | Meas. Sci. Technol., 18, 2667-2672. (IOP Science Publishers) |
Ochieng’, R.M.; Onyango, F.N.: Owino, A.J. |
| 2008 | Revisiting non-degenerate parametric down-conversion. | Pramana, 71 (6), 1311–1320 (Indian Academy of Sciences) |
Omolo, J.A. |
| 2009 | Numerical investigation of a plume from a power generating solar chimney in an atmospheric cross flow. | Atmospheric Research, 91, 26-35. (Elsevier) |
Zhou, X.; Yang, J.; Ochieng’, R.M.; Li, X.; Xiao, B.; |
| 2009 | Utilization of carbon-negative biofuels from low-input high diversity grassland biomass for energy in China. | Renewable and Sustainable Energy Reviews, 13, 479-485. (Elsevier) |
Zhou, X.; Xiao, B.; Ochieng’, R.M.; Yang, J. |
| 2009 | Development of direct current (d.c) to alternating current (a.c) inverters/oscillators for use in homes, schools and clinics in rural areas of developing countries | International Journal of Energy, Environment and Economics, 19,(6). (Nova Science Publishers). |
Ochieng’, R.M.; Onyango, F.N.;Oduor, A.O |
| 2009 | A mathematical approach to the calculation of geometric concentration ratio of a modified cone concentrator. | International Journal of Mathematics Game Theory and Algebra, 19, (1/2), 1-6, (Nova Science Publishers). |
Ochieng’, R.M.; Onyango, F.N.;Oduor, A.O |
| 2009 | Work-Energy approach to the formulation of expression of wind power. | In: Advances in Energy Research, (Morena J. Acosta, Ed.) .Vol 1: (Nova Science Publishers) |
Ochieng’, R.M.; Onyango, F.N. |