function dozent_query_user( $user_id ) {
		global $wpdb;

		$user = $wpdb->get_row( "select ID, display_name, 
			dozent_job_title.meta_value as dozent_profile_job_title, 
			dozent_bio.meta_value as dozent_profile_bio,
			dozent_photo.meta_value as dozent_profile_photo
			
			from {$wpdb->users}
			LEFT JOIN {$wpdb->usermeta} dozent_job_title ON ID = dozent_job_title.user_id AND dozent_job_title.meta_key = '_dozent_profile_job_title'
			LEFT JOIN {$wpdb->usermeta} dozent_bio ON ID = dozent_bio.user_id AND dozent_bio.meta_key = '_dozent_profile_bio'
			LEFT JOIN {$wpdb->usermeta} dozent_photo ON ID = dozent_photo.user_id AND dozent_photo.meta_key = '_dozent_profile_photo'
			
			WHERE ID = {$user_id} " );

		return $user;
	}