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  <element name="CancellationOfCommonStockShares" id="omag_CancellationOfCommonStockShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <element name="SaleOfStockUnderStockEquityDistributionAgreement" id="omag_SaleOfStockUnderStockEquityDistributionAgreement" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration"/>
  <element name="SaleOfStockUnderStockEquityDistributionAgreementShares" id="omag_SaleOfStockUnderStockEquityDistributionAgreementShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <element name="SaleOfCommonStockUnderOldStandbyEquityDistributionAgreementOldSeda" id="omag_SaleOfCommonStockUnderOldStandbyEquityDistributionAgreementOldSeda" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration"/>
  <element name="SaleOfCommonStockUnderOldStandbyEquityDistributionAgreementOldSedaShares" id="omag_SaleOfCommonStockUnderOldStandbyEquityDistributionAgreementOldSedaShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <element name="SaleOfCommonStockUnderNewStandbyEquityDistributionAgreementNewSeda" id="omag_SaleOfCommonStockUnderNewStandbyEquityDistributionAgreementNewSeda" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration"/>
  <element name="SaleOfCommonStockUnderNewStandbyEquityDistributionAgreementNewSedaShares" id="omag_SaleOfCommonStockUnderNewStandbyEquityDistributionAgreementNewSedaShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <element name="StockGrantToConsultantValue" id="omag_StockGrantToConsultantValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration"/>
  <element name="StockGrantToConsultantShares" id="omag_StockGrantToConsultantShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <element name="StockIssuedDuringPeriodValueIssuedForServicesForForeignConsultants" id="omag_StockIssuedDuringPeriodValueIssuedForServicesForForeignConsultants" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration"/>
  <element name="StockIssuedDuringPeriodSharesIssuedForServicesForForeignConsultants" id="omag_StockIssuedDuringPeriodSharesIssuedForServicesForForeignConsultants" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
  <element name="NatureOfBusinessAndSummaryOfSignificantAbstract" id="omag_NatureOfBusinessAndSummaryOfSignificantAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
  <element name="GoingConcernAndLiquidityAbstract" id="omag_GoingConcernAndLiquidityAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
  <element name="ConvertibleNotesPayableAndAccruedInterestAbstract" id="omag_ConvertibleNotesPayableAndAccruedInterestAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
  <element name="CommonStockAbstract" id="omag_CommonStockAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
  <element name="StockOptionsAbstract" id="omag_StockOptionsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
  <element name="RestatementOfFinancialStatementsAbstract" id="omag_RestatementOfFinancialStatementsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
  <element name="RestatementOfFinancialStatementsTextBlock" id="omag_RestatementOfFinancialStatementsTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration"/>
</schema>
