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###### Complications of pregnancy
Incidence is reported as 0.5-0.9% of all pregnancies. Acute fatty liver of pregnancy is sometimes included in the preeclamptic ... Deep vein thrombosis (DVT) has an incidence of 0.5 to 7 per 1,000 pregnancies, and is the second most common cause of maternal ... Pregnancy in women whose height is less than 1.5 meters (5 feet) correlates with higher incidences of preterm birth and ... Urinary incontinence and fecal incontinence have been linked to all methods of childbirth, with the incidence of urinary ...
###### Incidence geometry
... so it is not surprising to find that some authors refer to incidence structures as incidence geometries. Incidence structures ... In mathematics, incidence geometry is the study of incidence structures. A geometric structure such as the Euclidean plane is a ... When distance is considered in an incidence structure, it is necessary to mention how it is being defined. Incidence structures ... Some results of this situation can extend to more general settings since only incidence properties are considered. An incidence ...
###### Fiscal incidence
When the economic incidence of taxation is combined with the economic incidence of government expenditures, the result is a ... This is referred to as fiscal incidence. Early empirical studies of fiscal incidence date to the 1940s. Two early studies ... In the 1990s a branch of fiscal incidence known as "benefit incidence analysis" grew in popularity. Largely pioneered by ... Fiscal incidence is a concept within public finance, a sub-discipline within economics, that refers to the combined overall ...
###### Incidence matrix
The incidence matrix of a signed graph is a generalization of the oriented incidence matrix. It is the incidence matrix of any ... The incidence matrix of an incidence structure C is a p × q matrix B, where p and q are the number of points and lines ... The unoriented incidence matrix (or simply incidence matrix) of an undirected graph is a n × m matrix B, where n and m are the ... Incidence matrices are mostly used in graph theory. In graph theory an undirected graph has two kinds of incidence matrices: ...
###### Incidence structure
If an incidence structure C has an incidence matrix M, then the dual structure C∗ has the transpose matrix MT as its incidence ... the Fano plane is a self-dual incidence structure. An incidence figure (that is, a depiction of an incidence structure), is ... The incidence matrix of a (finite) incidence structure is a matrix with entries 0 or 1 that has its rows indexed by the points ... Incidence structures can be modelled by points and curves in the Euclidean plane with the usual geometric meaning of incidence ...
###### Incidence poset
In mathematics, an incidence poset or incidence order is a type of partially ordered set that represents the incidence relation ... is an incidence poset of a path graph. Every incidence poset of a non-empty graph has height two. Its width equals the number ... If an incidence poset has high dimension then it must contain copies of the incidence posets of all small trees either as sub- ... The incidence poset of a graph G has an element for each vertex or edge in G; in this poset, there is an order relation x ≤ y ...
###### Incidence coloring
The interval incidence coloring of graph G is an incidence coloring of G such that the set of colors given for the incidences ... The incidence chromatic number of a square mesh is 5. The incidence chromatic number of a hexagonal mesh is 7. The incidence ... By definition, it is obvious that 1-tuple incidence k-coloring is an incidence k-coloring too. The fractional incidence ... A r-tuple incidence k-coloring of a graph G is the assignment of r colors to each incidence of graph G from a set of k colors ...
###### Incidence (geometry)
Menelaus theorem Ceva's theorem Concyclic Incidence matrix Incidence algebra Incidence structure Incidence geometry Levi graph ... The most basic incidence relation is that between a point, P, and a line, l, sometimes denoted P I l. If P I l the pair (P, l) ... Incidence of a point and a line is given by containment of the one dimensional subspace in the two dimensional subspace. Fix a ... The propositions of incidence are derived from the following basic result on vector spaces: given subspaces U and W of a ( ...
###### Incidence algebra
Graph algebra Incidence coalgebra Path algebra Incidence algebras of locally finite posets were treated in a number of papers ... Any element of the reduced incidence algebra that is invertible in the larger incidence algebra has its inverse in the reduced ... This is a subalgebra of the incidence algebra, and it clearly contains the incidence algebra's identity element and zeta ... As a consequence, the Möbius function is always a member of the reduced incidence algebra. Reduced incidence algebras shed ...
###### Incidence (epidemiology)
... it is also known as the incidence density rate or person-time incidence rate. In the same example as above, the incidence rate ... Incidence proportion (also known as cumulative incidence) is the number of new cases within a specified time period divided by ... This disease will have both high incidence and high prevalence in 2002, but in 2003 it will have a low incidence yet will ... The importance of this equation is in the relation between prevalence and incidence; for example, when the incidence increases ...
###### Incidence (graph)
An incidence coloring of a graph G {\displaystyle G} is an assignment of a color to each incidence of G in such a way that ... In graph theory, an incidence is a pair ( u , e ) {\displaystyle (u,e)} where u {\displaystyle u} is a vertex and e {\ ... displaystyle e} is an edge incident to u {\displaystyle u} . Two distinct incidences ( u , e ) {\displaystyle (u,e)} and ( v , ... adjacent incidences get distinct colors. It is equivalent to a strong edge coloring of the graph obtained by subdivising once ...
###### Plane of incidence
S-polarized light has polarization perpendicular to the plane of incidence. The s in s-polarized comes from the German word ... The orientation of the incident light's polarization with respect to the plane of incidence has an important effect on the ... In describing reflection and refraction in optics, the plane of incidence (also called the meridional plane[citation needed]) ... P-polarized light is incident linearly polarized light with polarization direction lying in the plane of incidence. ...
###### Open marriage incidence
The overall incidence for our sample of married men of all ages appears to be basically unchanged from that of a generation ago ... The incidence of open marriage has remained relatively stable over the last two generations. Researchers need clear definitions ... The incidence of open marriage is the frequency with which open marriage occurs. Several definitional issues complicate ... As for our sample of married women, there is no evidence of any overall increase in incidence compared to a generation ago. ...
###### Variable-incidence wing
A variable-incidence wing has an adjustable angle of incidence relative to its fuselage. This allows adjustment of the wing's ... so it was given a variable-incidence wing. The only production aircraft to incorporate variable incidence was the American F-8 ... By increasing the incidence of the wing but not the fuselage, both high lift and good forward vision can be maintained. One of ... Without a variable-incidence wing (or other high-lift device), the pilot must pitch up the entire aircraft to maintain lift at ...
###### Affine plane (incidence geometry)
Given the "line/point" incidence matrix of any finite incidence structure, M, and any field, F the row space of M over F is a ... An incidence structure more general than a finite affine plane is a k-net of order n. This consists of n2 points and nk lines ... When the incidence structure is a finite affine plane, the codes belong to a class of codes known as geometric codes. How much ... Only the incidence relations are needed for this construction. An affine plane can be obtained from any projective plane by ...
###### Angle of incidence (aerodynamics)
Angles of incidence of about 6° are common on most general aviation designs. Other terms for angle of incidence in this context ... The use of the term "angle of incidence" to refer to the angle of attack occurs chiefly in British usage. Phillips, Warren F. ( ... On fixed-wing aircraft, the angle of incidence (sometimes referred to as the mounting angle) is the angle between the chord ... The angle of incidence is fixed in the design of the aircraft, and with rare exceptions, cannot be varied in flight. The term ...