a plasmid, virus, or other vehicle for carrying a DNA sequence into the cells of another species; also a method (such as genetically engineered viruses or bacteria) of delivering genetic material to cells.
An insect or any living carrier that transports an infectious agent from an infected individual or its wastes to a susceptible individual or its food or immediate surroundings.
In epidemiology, this refers to an agent, usually insect or animal, able to carry pathogens from one organism to another. In genetics, this is a genetic alement able to incorporate DNA and be replicated in a cell.
1). An organism that carries pathogens from one host to another. 2). An insect that transmits a disease. 3). A self-replicating DNA molecule that serves to transfer a DNA segment into a host cell in recombinant DNA technology.
A directed quantity, as a straight line, a force, or a velocity. Vectors are said to be equal when their directions are the same and their magnitudes equal. Cf. Scalar.
A datum with more than one component. In physics, velocity has a direction and a magnitude. In computing, often refers to a block of data (as in Vector Processor) which might be pixels.
Any quantity, such as force velocity, or acceleration, which has both magnitude and direction at each point in space, as opposed to scalar which has magnitude only. Such a quantity may be represented geometrically by an arrow of length proportional to its magnitude, pointing in the assigned direction.
A direction and altitude assigned to an aircraft by air traffic control.
Same as Radius vector.
A technology whereby an image is drawn using mathematically calculated control points and smooth lines. This is an analog technology, and there are hypothetically an infinite number of possible image shapes possible. Vector technologies are prone to failure and rumored to represent an increased risk of electromagnetic radiation exposure.
A coordinate based geographic data structure (in contrast to raster)often used to represent linear features.
A mathematical equation that defines a curve or straight line. These lines define the shape of the font outline.
An array, a contiguous group of values accessed through a common variable name.
a class that acts like an array that automatically grows to the size you need
a class which allows an array of adjustable size
a dynamically sized array whose elements are of type T
An indexable container class. Elements are accessed using a key that represents their position in the container. Provides fast random access to elements. Addition to the end of a vector is efficient. Insertion into the middle is not efficient.
a contiguous block of memory allocated together and has random access
a fixed-size sequence of Lisp objects, each element may be accessed in constant time--unlike lists where the time taken to access an element is proportional to the position of the element
a good container to use if you are going to be accessing the data in random order
an ordered list of numbers (one-dimensional)
a position in three-dimensional space
a single dimensional collection of data of type int, long, short, float or double
a three dimensional object
a collection of like elements without dimensions
a group of numbers, having the same amount of items as the space has dimensions
a set of values, commonly denoting a point in a multidimensional space
a thing in motion in a dimension (through a frame), whether in space, hyperspace, or time
a matrix with one column and may be multiplied by a matrix
an additive-element-with-inverse that can be multiplied from the left and right with other objects (not necessarily of the same type)
an element of a set, given closed operations, such that
a set of elements which are operated on as a single object
A heading issued to a pilot to provide navigational guidance by radar. Vectors are assigned verbally by FAA air traffic controllers.
A heading issued to an aircraft by ATC to provide navigational guidance by radar.
A heading given by a controller to a pilot on the basis of radar-derived information to provide navigational guidance. also called: radar vectoring Fr: vecteur
A heading provided by air traffic control to provide navigational guidance by radar.
The axis line derived from the altitude or angle of an edge.
a line with an arrow at the end, starting and ending in the center of a hex
This is a form of clean line art (Illustrator, EPS, Flash) that retains it's quality when resized.
In computerized signmaking, a line segment between two coordinates, on which a knife or tool path can be created for plotting or routing.
a replicon in which another polynucleotide segment is attached, so as to bring about the replication and/or expression of the attached segment
Data segment of an SNA message. A vector consists of a length field, a key that describes the vector type, and vector-specific data.
A pair of or three of floating-point numbers that obeys the laws of vector arithmetic. Compare normal.
a set of related float values
a utility object encapsulating the three floating point components X, Y and Z
a container of references to other objects
an object that has non-negative consecutive integers as the keys of its fields
a three-part object that usually contains information relating to the position or orientation of a model or other object