In fact, during the first century B.C., an extensive literature sprang up devoted to these subjects, finding its typical expression in the so-called `` wei books '', a number of which were specifically devoted to the Lo Shu and related numerical diagrams, especially in connection with divination.

Dyson was the first person ( besides Feynman ) to appreciate the power of Feynman diagrams, and his 1949 paper ( written in 1948 ) was the first paper using them.

The college library, one of the finest in the university, with a Victorian neo-gothic clock tower, is endowed with an original copy of the first encyclopaedia to contain printed diagrams.

To calculate the probability of any interactive process between electrons and photons it is a matter of first noting, with Feynman diagrams, all the possible ways in which the process can be constructed from the three basic elements.

Antoine Augustin Cournot first developed a mathematical model of supply and demand in his 1838 Researches into the Mathematical Principles of Wealth, including diagrams.

He soon built up a wealth of detailed anatomical diagrams, the first accurate set to be produced.

Bear Island was the site of a pioneering ecological study by Victor Summerhayes and Charles Elton in the early 1920s, which produced one of the first food web diagrams.

The physical constant, the electron's charge, can then be defined in terms of some specific experiment ; we set the renormalization scale equal to the energy characteristic of this experiment, and the first term gives the interaction we see in the laboratory ( up to small, finite corrections from loop diagrams, providing such exotica as the high-order corrections to the magnetic moment ).

However, Hasse was not the first to use these diagrams ; they appear, e. g., in.

Dominance was first introduced by Reese T. Prosser in a 1959 paper on analysis of flow diagrams.

Such graphs are termed indicator diagrams and were first used by James Watt and others to monitor the efficiency of engines.

The first is a zig-zag line with a circle at either end, based on the electronic symbol used for resistors on circuit diagrams.

However, the first set of data-flow diagrams ( DFDs ) are the current physical model, that is, with full details of how the old system is implemented.

GraphiText's successor product, DesignAid, was the first microprocessor-based tool to logically and semantically evaluate software and system design diagrams and build a data dictionary.

Penrose diagrams are more properly ( but less frequently ) called Penrose-Carter diagrams ( or Carter-Penrose diagrams ), acknowledging both Brandon Carter and Roger Penrose, who were the first researchers to employ them.

There is almost universal agreement that in labeling boxes of Young diagrams by pairs of integers, the first index selects the row of the diagram, and the second index selects the box within the row.

Nevertheless two distinct conventions exist to display these diagrams, and consequently tableaux: the first places each row below the previous one, the second stacks each row on top of the previous one.

Tadpole diagrams, in this sense, first appear in the above-mentioned article by Coleman and Glashow, Physical Review v. 134, p. B671 ( 1964 ).

The memorization proceeded from diagrams, or learning a key sentence, with the first letter of each word reminding the student of the names of the syllogisms.

The first volume contains 1220 pages, 4 plates, and many additional diagrams and figures within the text.

To make the connection to diagramatical techniques ( like Feynman diagrams ) clearer, it's often convenient to split the action S as S = 1 / 2 D < sup >− 1 </ sup >< sub > ij </ sub > φ < sup > i </ sup > φ < sup > j </ sup >+ S < sub > int </ sub > where the first term is the quadratic part and D < sup >− 1 </ sup > is an invertible symmetric ( antisymmetric for fermions ) covariant tensor of rank two in the deWitt notation whose inverse, D is called the bare propagator and S < sub > int </ sub > is the " interaction action ".

No one was behind it, but in the rear wall of the office I noticed, for the first time, a door which had been left partially open.

At the first restaurant he sensibly pulled up to go in for his dinner, and as a consequence did not see Cobb strike the open range at the mouth of the canyon and head straight across the swells for Antler.

`` We are menaced for the first time in the history of the Republic by the open and unblushing effort of a multi-millionaire to purchase the Presidential nomination.

Rangoni's first entrance is a musical shock, a sudden open fifth in a key totally unrelated to what has preceded it.

As these Swiss were moving from the Selkirk settlement to become the first civilian residents of Minnesota, Dousman of Michilimackinac, Michigan, and Prairie Du Chien was traveling to Red River to open a trade in merchandise.

Charlie Marble was back and forth on several occasions, first to confer with Andy on the advisability of cancelling the Las Vegas engagement -- they decided it was wise -- and later to announce that a prominent comedian, also an agency client, had agreed to fill the casino's open date.

Dick McAuliffe cracked the first of his two doubles against Lefty Don Rudolph to open the Bear's attack.

The acoustics of the small hall had been misgauged by the artists, so that for the first half of the program, when the piano was partially open, Mr. Jenni's playing was too loud.

His first thought was that Mrs. Kirby, in her mania for color, had dyed a cat and that cat had somehow managed to open the refrigerator door and climb in ; ;

Eventually they built the first perfusion pump, an invention instrumental to the development of organ transplantation and open heart surgery.

AES is available in many different encryption packages, and is the first publicly accessible and open cipher approved by the National Security Agency ( NSA ) for top secret information when used in an NSA approved cryptographic module ( see Security of AES, below ).

* 1981 – Dr. Michael R. Harrison of the University of California, San Francisco Medical Center performs the world's first human open fetal surgery.

Carnegie helped open the rail lines into Washington D. C. that the rebels had cut ; he rode the locomotive pulling the first brigade of Union troops to reach Washington D. C.

The first mechanically-propelled 2-wheel vehicle may have been built by Kirkpatrick MacMillan, a Scottish blacksmith, in 1839, although the claim is open to dispute.

In 1931, the castle gardens were first opened to the public, and are now open daily between April and the end of July, after which the Queen arrives for her annual stay.

He tinformed Olga Carlisle that, at the end of The Blind Beauty, he wished to depict " the birth of an enlightened and affluent middle class, open to occidental influences, progressive, intelligent, artistic ..." However, Pasternak fell ill with terminal lung cancer before he could complete the first play of the trilogy.

The British Museum was the first of a new kind of museum – national, belonging to neither church nor king, freely open to the public and aiming to collect everything.

The first new brewery was opened in Newark, New Jersey in 1951, and was the first of nine to open over the course of the next 25 years.

The psychological significance was that this was the first open field battle won by the royal forces, so it increased the morale of the Polish forces and lowered the morale of the Teutonic Knights.

The office originally granted the holder the ability to speak first at session on the topic presented by the presiding magistrate, but eventually gained the power to open and close the senate sessions, decide the agenda, decide where the session should take place, impose order and other rules of the session, meet in the name of the senate with embassies of foreign countries, and write in the name of the senate letters and dispatches.

Intuitively, the process can be pictured as follows: first shrink the real line to the open interval (- π, π ) on the x-axis ; then bend the ends of this interval upwards ( in positive y-direction ) and move them towards each other, until you get a circle with one point ( the topmost one ) missing.

Rockies first baseman Andrés Galarraga won the batting title, hitting. 370 for the season after Manager Don Baylor persuaded Galarraga to change from a standard batting stance into an open one in which he squarely faced the pitcher, allowing him to see incoming pitches properly.

The rules committee considered widening the playing field to " open up " the game, but Harvard Stadium ( the first large permanent football stadium ) had recently been built at great expense ; it would be rendered useless by a wider field.

The building was dedicated in 1954 and is possibly the first financial institution in America to use glass walls and an open floor plan.