Samples are titrated to the end point This means that a chemical is added, drop by drop, to a sample until a certain color change (blue to clear, for example) occurs This is called the END POINT of the titration In addition to a color change, an end point may be reached by the formation of a precipitate or the reaching of a specified pH An end point may be detected by the use of an electronic device such as a pH meter
The apparent equivalence point of a titration at which a relatively large potential change is observed
that stage in the titration at which an effect, such as a color change, occurrs, indicating that a diesired point in the titration has been reached
A functional electrical component created automatically under a signal when a connection has been established
What a clinical trial is trying to measure or find out In essence, the goal of the trial It is scientifically very important that the goals for clinical trials be selected and clearly defined in advance Typical end points include measurements of Toxicity, Response Rate, and Survival
The last data point based on the timeframe requested by a radar data user It is not necessarily the last radar hit for a target of interest Also see Start Point
SIP or H 323 terminal or gateway An endpoint can call and be called It generates and terminates the information stream
Where a titration is stopped The point in a titration at which there is a sudden change in a physical property, such as indicator color, pH, conductivity or absorbance The final value when titrating a solution
- What a clinical trial is trying to measure or find out; the goal of the trial Typical end points include measurements of toxicity, response rate, and survival
(noun) The point in a titration when the indicator changes colour This does not always happen at the equivalence point, depending on which indicator is used In a reaction between an acid and a base, the endpoint is also sometimes called the "neutralization point"
Indicators measured in a subject or biological sample to assess the safety, efficacy, or other objective of a trial There are often primary and secondary endpoints in a particular study
the final results of an intervention such as vaccination, compared among different groups in a clinical trial In early vaccine trials, common endpoints are safety and specific types and levels of immune responses (e g , neutralizing antibodies, CTLs)
a direct marker of disease progression, e g , disease symptoms or death The effectiveness of drug therapies is often determined by observing the clinical endpoints that develop over time in patients undergoing experimental treatment Contrast with surrogate marker
A type of communications connection such as a serial connection, modem, infrared beam, or AppleTalk network Also an object created from protoBasicEndpoint, or one of its derivative protos, that controls a real-time communication session This object encapsulates and maintains the details of the specific connection, and allows you to control the underlying communication tool Source: NPG
An indicator measured in a subject or biological sample to assess the safety, efficacy, or other objective of a trial See also Surrogate Marker Source: Applied Clinical Trials/Advanstar Click for their site: www advanstar com
in toxicology, a quantifiable biological change or effect caused by a toxic process Also refers to the point in an animal experiment when no more information can be obtained and the experiment is stopped
An endpoint (or indicator/target) is a characteristic of an ecosystem that may be affected by exposure to a stressor Assessment endpoints and measurement endpoints are two distinct types of endpoints commonly used by resource managers An assessment endpoint is the formal expression of a valued environmental characteristic and should have societal relevance (an indicator) A measurement endpoint is the expression of an observed or measured response to a stress or disturbance It is a measurable environmental characteristic that is related to the valued environmental characteristic chosen as the assessment endpoint The numeric criteria that are part of traditional water quality standards are good examples of measurement endpoints (targets)
the point in a titration where there is a distinct and measureable change When using a colored indicator, as in an acid-base titration, it the point where the color of the indicator changes A good indicator will change very close to the equivalence point of the reaction
@@@ Currently synonym of port; confusion possible An association between a Binding and a network address, specified by a URI, that may be used to communicate with an instance of a Service A Port indicates a specific location for accessing a Service using a specific protocol and data format [WSD Reqs]
The point at which a process is stopped because a predetermined value of a measurable variable is reached; the endpoint of an ion exchange water softener service run is the point at which the hardness of the softener effluent increases to a predefined concentration, often 1 0 grain per gallon; the endpoint of a filter service run may be the point at which the pressure drop across the filter reaches a predetermined value; the endpoint of a titration is the point at which the titrant produces predetermined color change, pH value, or other measurable characteristic
An observable or measurable biological event or chemical concentration (e g , metabolite concentration in a target tissue) used as an index of an effect of a chemical exposure
the results of an intervention such as vaccination compared among different study groups in a clinical trial In early vaccine trials, common endpoints are safety and specific types and intensities of immune responses (neutralizing antibodies, CTL responses)