The normal QRS axis, like the P wave axis, points downward and to the left within a coordinate between -30 o and +90 o. This axis is said to be deviated to the left (left axis deviation or LAD) if it lies between -30 o and -90 o; and deviated to the right (right axis deviation or RAD) if it lies between +90 o and 180 o.
Schema.org Structured Data. Schema.org (often called Schema) is a specific vocabulary of tags (or microdata) that you can add to your HTML to improve the way your page is represented in SERPs.chema.org (often called Schema) is a specific vocabulary of tags (or microdata) that you can add to your HTML to improve the way your page is represented in SERPs.
An XML schema defines the structure of a class of XML instance messages. Because this type of schema uses XML Schema definition (XSD) language to define the structure of an XML instance message, and this is the intended purpose of XSD, such schemas use XSD in a straightforward way.roperty schema. A property schema is used with one of the two mechanisms that exist within BizTalk Server for what is known as property promotion. Property promotion is the process of copying specific values from deep within an instance message to the message context.