portal

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portal

1. an entrance, gateway, or doorway, esp one that is large and impressive
2. Anatomy
a. of or relating to a portal vein
b. of or relating to a porta

Portal

An entrance, gate, or door to a building or courtyard, often decorated; it marks the transition from the public exterior to the private interior space.

Portal

 

in architecture, an opening, usually an entrance into a building. Typical ancient Egyptian and ancient Greek portals were simply ornamented and had level crosspieces. In ancient Mesopotamia portals were arched, and in the Near and Middle East peshtak portals were typical; these were rectangular and had a cut-out lancet arch. Beginning in the 11th century arched, or perspective, portals became widespread in romanesque, gothic, and ancient Russian architecture. These portals were projections whose corners had columns joined by archivolts. Renaissance and baroque portals usually had pilasters and columns that supported the entablature or frontal.

portal

[′pȯrd·əl]
(anatomy)
Of or pertaining to the porta hepatis.
Pertaining to the portal vein or system.
(engineering)
A redundant frame consisting of two uprights connected by a third member at the top.
(mining engineering)
An entrance to a mine.
The rock face at which a tunnel is started.

portal

1. An impressive or monumental entrance, gate, or door to a building or courtyard, often decorated.
2. A structural framework consisting of a beam supported by two columns to which it is connected with sufficient rigidity to hold virtually unchanged the original angles between the intersecting members. (See illustration p. 752.)

PORTAL

(1)
Process-Oriented Real-Time Algorithmic Language.

["PORTAL - A Pascal-based Real-Time Programming Language", R. Schild in Algorithmic Languages, J.W. deBakker et al eds, N-H 1981].

portal

(World-Wide Web)
A website that aims to be an entry point to the World-Wide Web, typically offering a search engine and/or links to useful pages, and possibly news or other services. These services are usually provided for free in the hope that users will make the site their default home page or at least visit it often. Popular examples are Yahoo and MSN. Most portals on the Internet exist to generate advertising income for their owners, others may be focused on a specific group of users and may be part of an intranet or extranet. Some may just concentrate on one particular subject, say technology or medicine, and are known as a vertical portals.

portal

A Web "supersite" that provides a variety of services including Web search, news, blogs, discussion groups, shopping and links to other sites. The major general-purpose portals are Yahoo, MSN and AOL, all of which offer free Web-based email accounts. TV networks and newspapers provide general-purpose portals, but not email. Many portals allow the home page to be personalized (see personal portal). Prior to the Web, CompuServe and AOL functioned as portals, aggregating information from various sources.

The Vortal
Portals also serve vertical markets. Trade magazines, associations and special interest groups host vertical portals (vortals) and provide news and articles for their industry such as IT, banking and insurance. The vortal may also include general information such as top news stories and weather; however, their search capabilities are often limited to their own archives, rather than the entire Web. See corporate portal, business intelligence portal and portal server.
References in periodicals archive ?
Our findings were not in agreement with such a seasonal fibrosis pattern, however, because portal fibrosis was present with bile duct proliferations in all individuals.
Of the individual morphologic features of NASH, pericellular fibrosis and portal fibrosis were the only ones associated with splenomegaly, even when using higher thresholds for the definition of splenomegaly (P < .
Fibrosis was staged on a scale of 0-4: F0, no fibrosis; F1, portal fibrosis without septa; F2, few septa; F3, numerous septa without cirrhosis; F4, cirrhosis.
The portal fibrosis is typically accompanied by ductular reaction and mild inflammation, as described above, as well as by some degree of portal and periductal edema, which imparts a distinctive "obstructive" appearance to the expanded portal tracts (Figure 2, A and B).
Fibrosis was scored on a 5-point scale: F0, no fibrosis; F1, portal fibrosis alone; F2, portal fibrosis with rare septae; F3, portal fibrosis with many septae; F4, cirrhosis.
49,50) In the setting of concurrent, chronic hepatitis C and fatty liver disease (not including minor, virus-induced steatosis), scoring of the grade and stage may be inappropriate because distinguishing the contributions of each entity can be difficult or impossible; both diseases may show some degree of portal fibrosis, mild portal mononuclear infiltrates, and apoptotic bodies.
Every biopsy specimen was staged on a scale of FO to F4: F0, no fibrosis; F1, portal fibrosis without septa; F2, few septa; F3, many septa without cirrhosis; and F4, cirrhosis.