Abstract: Embodiments relate generally to a gas detector test fixture that recycles test gas. A portable gas detector test fixture, comprises a test chamber, a processor, a docking connector communicatively coupled to the processor, an output device communicatively coupled to the processor, a memory communicatively coupled to the processor, and an application stored in the memory that, when executed by the processor, is configured to conduct a bump test on a portable gas detector plugged into the docking connector and to output the bump test result to the output device. The test fixture further comprises an inflow line configured to connect to a test gas supply line of a test gas container, where the inflow line is coupled to the test chamber, and an outflow line configured to connect to a test gas return line of the test gas container, where the outflow line is coupled to the test chamber.

Abstract: Embodiments relate generally to a gas detector test fixture (102) that recycles test gas, which can then be reused. A portable gas detector test fixture (102), comprises a test chamber (104), a processor (134), a docking connector (132) communicatively coupled to the processor (134), an output device (138) communicatively coupled to the processor (134), a memory (136) communicatively coupled to the processor (134), and an application (137) stored in the memory (136) that, when executed by the processor (134), is configured to conduct a bump test on a portable gas detector (106) plugged into the docking connector (132) and to output the bump test result to the output device (138).

Abstract: Embodiments relate generally to a gas detector test fixture (102) that recycles test gas, which can then be reused. A portable gas detector test fixture (102), comprises a test chamber (104), a processor (134), a docking connector (132) communicatively coupled to the processor (134), an output device (138) communicatively coupled to the processor (134), a memory (136) communicatively coupled to the processor (134), and an application (137) stored in the memory (136) that, when executed by the processor (134), is configured to conduct a bump test on a portable gas detector (106) plugged into the docking connector (132) and to output the bump test result to the output device (138).

Abstract: Embodiments relate generally to systems and methods for gas detection. A method may comprise operating a gas detector with a first alarm setting comprising a first predefined threshold; receiving sensed data of oxygen content in the ambient air; when the sensed data is below the first predefined threshold, activating an alarm; generating an acknowledgement request asking if the gas detector has entered an inert work zone; receiving a response from the user acknowledging that the gas detector has entered an inert work zone; deactivating the alarm; changing the alarm settings of the gas detector to a second alarm setting comprising a second predefined threshold; continuing to receive sensed data of oxygen content in the ambient air; when the sensed data is above the second predefined threshold, activating an alarm; and generating an acknowledgement request for the user asking if the gas detector has entered a normal operation work zone.

Abstract: Embodiments relate generally to systems and methods for gas detection. A method may comprise operating a gas detector with a first alarm setting comprising a first predefined threshold; receiving sensed data of oxygen content in the ambient air; when the sensed data is below the first predefined threshold, activating an alarm; generating an acknowledgement request asking if the gas detector has entered an inert work zone; receiving a response from the user acknowledging that the gas detector has entered an inert work zone; deactivating the alarm; changing the alarm settings of the gas detector to a second alarm setting comprising a second predefined threshold; continuing to receive sensed data of oxygen content in the ambient air; when the sensed data is above the second predefined threshold, activating an alarm; and generating an acknowledgement request for the user asking if the gas detector has entered a normal operation work zone.

Abstract: Embodiments relate generally to systems and methods for gas detection. A method may comprise operating a gas detector with a first alarm setting comprising a first predefined threshold; receiving sensed data of oxygen content in the ambient air; when the sensed data is below the first predefined threshold, activating an alarm; generating an acknowledgement request asking if the gas detector has entered an inert work zone; receiving a response from the user acknowledging that the gas detector has entered an inert work zone; deactivating the alarm; changing the alarm settings of the gas detector to a second alarm setting comprising a second predefined threshold; continuing to receive sensed data of oxygen content in the ambient air; when the sensed data is above the second predefined threshold, activating an alarm; and generating an acknowledgement request for the user asking if the gas detector has entered a normal operation work zone.

Abstract: Embodiments relate generally to systems and methods for gas detection. A method may comprise operating a gas detector (102) with a first alarm setting comprising a first predefined threshold; receiving sensed data of oxygen content in the ambient air; when the sensed data is below the first predefined threshold, activating an alarm (110); generating an acknowledgement request asking if the gas detector has entered an inert work zone (122); receiving a response from the user acknowledging that the gas detector has entered an inert work zone; deactivating the alarm; changing the alarm settings of the gas detector to a second alarm setting comprising a second predefined threshold; continuing to receive sensed data of oxygen content in the ambient air; when the sensed data is above the second predefined threshold, activating an alarm; and generating an acknowledgement request for the user asking if the gas detector has entered a normal operation work zone (120).

Abstract: Embodiments relate generally to gas detector connectivity devices, for example a dongle, to allow for continuous communication of real-time data between a gas detector and a central station. Dongle embodiments typically comprise an IR transceiver, a processor, a wireless interface device, a power source, and a means of attachment. Such dongle embodiments, and their related methods of operation, may allow for retrofitting of legacy gas detectors to provide wireless capabilities.

Abstract: Embodiments relate generally to a gas detector test fixture (102) that recycles test gas, which can then be reused. A portable gas detector test fixture (102), comprises a test chamber (104), a processor (134), a docking connector (132) communicatively coupled to the processor (134), an output device (138) communicatively coupled to the processor (134), a memory (136) communicatively coupled to the processor (134), and an application (137) stored in the memory (136) that, when executed by the processor (134), is configured to conduct a bump test on a portable gas detector (106) plugged into the docking connector (132) and to output the bump test result to the output device (138).

Abstract: Embodiments relate generally to systems and methods for gas detection. A method may comprise operating a gas detector (102) with a first alarm setting comprising a first predefined threshold; receiving sensed data of oxygen content in the ambient air; when the sensed data is below the first predefined threshold, activating an alarm (110); generating an acknowledgement request asking if the gas detector has entered an inert work zone (122); receiving a response from the user acknowledging that the gas detector has entered an inert work zone; deactivating the alarm; changing the alarm settings of the gas detector to a second alarm setting comprising a second predefined threshold; continuing to receive sensed data of oxygen content in the ambient air; when the sensed data is above the second predefined threshold, activating an alarm; and generating an acknowledgement request for the user asking if the gas detector has entered a normal operation work zone (120).

Abstract: Embodiments relate generally to gas detector connectivity devices, for example a dongle, to allow for continuous communication of real-time data between a gas detector and a central station. Dongle embodiments typically comprise an IR transceiver, a processor, a wireless interface device, a power source, and a means of attachment. Such dongle embodiments, and their related methods of operation, may allow for retrofitting of legacy gas detectors to provide wireless capabilities.

Abstract: Methods for improved administration and dosing of DPD inhibitors in combination with 5-FU and/or 5-FU prodrugs are provided, comprising first administering to a patient in need thereof a DPD inhibitor that substantially eliminates activity of the enzyme in both nervous and non-nervous tissues within the patient and thereafter administering 5-FU or a 5-FU prodrug, wherein the level of 5-FU or 5-FU generated from a prodrug is in substantial excess of DPD inhibitor in the patient.

Abstract: Methods for improved administration and dosing of DPD inhibitors in combination with 5-FU and/or 5-FU prodrugs are provided, comprising first administering to a patient in need thereof a DPD inhibitor that substantially eliminates activity of the enzyme and thereafter administering 5-FU or a 5-FU prodrug, wherein the level of 5-FU or 5-FU prodrug is in substantial excess of DPD inhibitor in the patient.

Abstract: Methods for improved administration and dosing of DPD inhibitors in combination with 5-FU and/or 5-FU prodrugs are provided, comprising first administering to a patient in need thereof a DPD inhibitor that substantially eliminates activity of the enzyme and thereafter administering 5-FU or a 5-FU prodrug, wherein the level of 5-FU or 5-FU prodrug is in substantial excess of DPD inhibitor in the patient.

Abstract: Methods for improved administration and dosing of DPD inhibitors in combination with 5-FU and/or 5-FU prodrugs are provided, comprising first administering to a patient in need thereof a DPD inhibitor that substantially eliminates activity of the enzyme in both nervous and non-nervous tissues within the patient and thereafter administering 5-FU or a 5-FU prodrug, wherein the level of 5-FU or 5-FU generated from a prodrug is in substantial excess of DPD inhibitor in the patient.

Abstract: Uracil reductase inactivators, notably a 5-substituted uracil or 5,6-dihydro-5-substituted uracil, potentiate 5-flourouracil and find use particularly in the treatment of cancer. The 5-substituent is selected from bromo, ido, cyano, halo-substituted C1-4 alkyl, C2-6 alkenyl, 1-halo-C2-6 alkenyl and halo-substituted C2-6 alkynyl.

Abstract: Uracil reductase inactivators, notably a 5-substituted uracil or 5,6-dihydro-5-substituted uracil, potentiate 5-flourouracil and find use particularly in the treatment of cancer. The 5-substituent is selected from bromo, ido, cyano, halo-substituted C1-4 alkyl C2-6 alkenyl, 1-halo-C2-6 alkenyl and halo-substituted C2-6 alkynyl.

Abstract: Uracil reductase inactivators, notably a 5-substituted uracil or 5,6-dihydro-5-substituted uracil, potentiate 5-flourouracil and find use particularly in the treatment of cancer. The 5-substituent is selected from bromo, ido, cyano, halo-substituted C1-4 alkyl, C2-6 alkenyl, 1-halo-C2-6 alkenyl and halo-substituted C2-6 alkynyl.

Abstract: Methods for improved administration and dosing of DPD inhibitors in combination with 5-FU and/or 5-FU prodrugs are provided, comprising first administering to a patient in need thereof a DPD inhibitor that substantially eliminates activity of the enzyme and thereafter administering 5-FU or a 5-FU prodrug, wherein the level of 5-FU or 5-FU prodrug is in substantial excess of DPD inhibitor in the patient.