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A number of semiempirical estimates by various workers lead to the conclusion that the Af bond becomes symmetric when the Af bond length is about 2.4 to 2.5 A, but aside from the possible example of nickel dimethylglyoxime there have been no convincing reports of symmetric Af bonds.
from Brown Corpus
Some Related Sentences
number and estimates
Official estimates of the population are of around 25, 000, while the unofficial number is upward of 200, 000 people.
Trevelyan estimates Villeroi ’ s casualties at 13, 000, but adds, ‘ his losses by desertion may have doubled that number ’.
Although not known with certainty the total number of species in the family, conservative estimates indicate approximately 2. 600 species worldwide, distributed in 109 genera.
Indeed, estimates of the number of metabolites in single cells such as E. coli and baker's yeast predict that under 1, 000 are made.
Some estimates put the total number of species, described and undescribed, at as high as 100 million, but a figure of 1 million is more widely accepted.
One of the first proposed estimates of the total number of beetle species on the planet is based on field data rather than on catalog numbers.
The historian Warren Treadgold estimates that under Diocletian the number of men in the civil service doubled from 15, 000 to 30, 000.
Unbound free-floating planetary-mass bodies in the Milky Way may number in the trillions, with 100, 000 objects larger than Pluto for every main-sequence star .< ref > Nomads of the Galaxy, Louis E. Strigari, Matteo Barnabe, Philip J. Marshall, Roger D. Blandford ; estimates 700 objects > 10 < sup >- 6 </ sup > Solar masses (≈ a Mars mass ) per main sequence star between 0. 08 and 1 Solar mass, of which there are billions in the Milky Way .</ ref >
By using the technique called the molecular clock which estimates the time required for the number of divergent mutations to accumulate between two lineages, the approximate date for the split between lineages can be calculated.
The National Security Agency, SUPO, estimates that the known number of Russian agents from SVR and GRU now exceeds Cold War levels and there are unknown numbers of others.
Several estimates imply that practically all the matter, when measured by mass, in the visible universe ( not including dark matter ) is in the protons of hydrogen atoms, and that roughly protons exist in the visible universe ( Eddington number ), and roughly atoms exist in the visible universe.
Greenland census estimates place the number of speakers of Inuit dialects there at roughly 50, 000, while Canadian estimates are at roughly 35, 000.
Before the 1991 dissolution of the Soviet Union, researchers who attempted to count the number of people killed under Stalin's regime produced estimates ranging from 3 to 60 million.
His funeral was well attended, with estimates of the number of mourners along the two hour march ranging from 15, 000 to over 50, 000.
From these figures, the All Japan Kendo Federation estimates that the number of " kendōka " in Japan is 1. 66 million by adding the number of the registered dan holders and the active kendo practitioners without dan grade.
In opposition to Nasrallah's call, Monday, March 7 saw at least 70, 000 people – with some estimates putting the number at twice as high – gathered at central Martyrs ' Square to demand that Syria leave completely.
number and by
She was sure she would reach the pool by climbing, and she clung to that belief despite the increasing number of obstacles.
The only factors that are personally set by the choreographer are the movements themselves, the number of the dancers, and the approximate total duration of the dance.
Not only did the ideal entrepreneur not produce the greatest good for the greatest number, he ended by destroying himself, by giving birth to monopoly capitalism.
The number of people acting as one body by this scheme gives a surprisingly large army of 55,987 men.
Copernicus, by placing the sun at the center of the planetary universe, was able to reduce the number of epicycles from eighty-three to seventeen.
I assume that the number of readers of this anthology who regard themselves as morally perfect is small, and that most readers are willing to consider procedures by which they may gain more insight into themselves and better understanding of others.
One serves society by conducting a business from which a certain number of employees draw their means of subsistence ; ;
That is how the real routine of resistance goes on, and its strength is directly proportionate to the number of insignificant people who can let themselves be taken to pieces, piece by piece, without quitting.
Interest has been shown for a number of years by local assessors in the possibility of taxing boats.
They are conscious of this state's new feeling of optimism and assurance and are definitely impressed by the number of new plants and construction projects in Rhode Island.
New York led in the number of inquiries, followed by California, New Jersey, Massachusetts, and Pennsylvania.
These data are not of the precision obtainable by the methods previously mentioned, but the vast number of approximate values available will be useful in many areas.
The Peace Corps can either begin in very low gear, with only preparatory work undertaken between now and when Congress finally appropriates special funds for it -- or it can be launched now and in earnest by executive action, with sufficient funds and made available from existing Mutual Security appropriations to permit a number of substantial projects to start this summer.
Retired pay costs are increased by $94 million in 1961 over 1960, partly because of a substantial increase in the number of retired personnel.
During nighttime hours, because of the intense skywave propagation then prevailing, no large number of stations can be permitted to operate on one of these channels, if the wide area service for which these frequencies are assigned is to be rendered satisfactorily by the dominant stations which must be relied upon to render it.
Additional class 2, assignments for daytime operation can be made without causing destructive interference to the class 1, stations or to each other, and by their operation provide additional service on these channels and additional local outlets for a large number of communities.
Multiplying the result by the number of cylinders in the engine gives the engine's total displacement.
Reduces losses from stomach, hookworm, and nodular worms by interfering with reproduction of the female worm by reducing the number of eggs laid and essentially rendering all laid eggs sterile.
An examination of some forty catalogs of schools offering courses in interior design, for the most part schools accredited by membership in the National Association of Schools of Art, and a further `` on the spot '' inspection of a number of schools, show their courses adhere pretty closely to the recommendations.