For over 40 years, the FBI crime lab in Quantico believed lead in bullets had unique chemical signatures.

For example geochemical signatures from rocks may help to discover when life first arose on Earth, and analyses of carbon isotope ratios may help to identify climate changes and even to explain major transitions such as the Permian – Triassic extinction event .< ref name =" Twitchett "> A relatively recent discipline, molecular phylogenetics, often helps by using comparisons of different modern organisms ' DNA and RNA to re-construct evolutionary " family trees "; it has also been used to estimate the dates of important evolutionary developments, although this approach is controversial because of doubts about the reliability of the " molecular clock ".

For such an amendment initiative to be organised, the signatures of 100, 000 voters must be collected within 18 months.

For example, a IEEE 802. 11n wireless router with N antennas makes it possible to communicate with N multiplexed channels, each with a peak bit rate of 54 Mbit / s, thus increasing the total peak bit rate with a factor N. Different antennas would give different multi-path propagation ( echo ) signatures, making it possible for digital signal processing techniques to separate different signals from each other.

) For local ( non-statewide ) office, the number of signatures required to place a candidate on the ballot is much lower for qualified parties, and they are the only parties eligible to hold primary elections.

Soon afterwards, Ronald Rivest, Adi Shamir, and Len Adleman invented the RSA algorithm, which could be used to produce primitive digital signatures ( although only as a proof-of-concept —" plain " RSA signatures are not secure < ref > For example any integer r " signs " m = r < sup > e </ sup > and the product s < sub > 1 </ sub > s < sub > 2 </ sub > of any two valid signatures s < sub > 1 </ sub >, s < sub > 2 </ sub > of m < sub > 1 </ sub >, m < sub > 2 </ sub > is a valid signature of the product m < sub > 1 </ sub > m < sub > 2 </ sub >.</ ref >).

For example, many real-time anti-virus scanners use heuristic signatures for detecting viruses and other forms of malware.

For a $ 5, 500 fee to an imaginary lawyer, Don and Helen Robinson received Tiffany Stasi ( whose identity was confirmed by DNA testing in 2000 ) and a set of authentic-appearing adoption papers with the forged signatures of two lawyers and a judge.

For example, the doctrine of signatures held that similarity between plant parts and body parts indicated their efficacy in treating diseases of those body parts, and was a part of Western medicine.

For the petition to be certified, there was a requirement to secure the signatures of a minimum of 10 % of all registered voters on the provincial voters list in each riding in the province, no later than June 30, 2010.

For the 2003 recall election, that meant a minimum of 897, 156 signatures, based on the November 2002 statewide elections, but 1. 2 million were needed to ensure that there were enough valid signatures.

For example, phylogeographic analyses of terrestrial vertebrates on the Baja California peninsula and marine fish on both the Pacific and gulf sides of the peninsula display genetic signatures that suggest a vicariance event affected multiple taxa during the Pleistocene or Pliocene.

* South Dakota: For a registered political party in a statewide election they must collect petition signatures equal to one percent of the vote for that political party in the preceding election for state governor.

* Texas: For a registered political party in a statewide election to gain ballot access, they must either 1 ) obtain five percent of the vote in any statewide election or 2 ) collect petition signatures equal to one percent of the total votes cast in the preceding election for governor, and must do so by January 2 of the year in which such statewide election is held.

For any office the candidate must obtain signatures of at least 125 registered voters for the area where they are running for office ( except in communities of fewer than 3, 500 people, where the number is lower ), and if they are running as a candidate from a political party where partisan elections are permitted, must pay a fee of 2 % of their yearly salary ( no fee is required for persons not running as a candidate for a primary of a political party ).

For the same reason, MACs do not provide the property of non-repudiation offered by signatures specifically in the case of a network-wide shared secret key: any user who can verify a MAC is also capable of generating MACs for other messages.

For instance, a notary public acts as a trusted third party for authenticating or acknowledging signatures on documents.

During the four-day drive A Scientific Support For Darwinism And For Public Schools Not To Teach Intelligent Design As Science gathered 7733 signatures of verifiable scientists.

For example provided that the signatures on a petition to the president for a referendum must be verified in accordance with the law.

For a long time it was thought that McEliece could not be used to produce signatures.

For one thing, this is not a subject often discussed or analyzed.

For instance, college-educated people consistently show up in study after study as more often than others supporters of the Bill of Rights and other democratic rights and liberties.

For a dawning sense of illumination occurs in consequence of two events which, as so often in Malraux, suddenly confront a character with the existential question of the nature and value of human life.

For example: If your bodily injury claims start payment after the first $250, a 25% premium saving is often made.

For referring specifically to a U. S. national and things, the words used are estadunidense ( also spelled estado-unidense ) ( United States person ), from Estados Unidos da América, and ianque ( Yankee ), but the term most often used is norte-americano, even though it could, as with its Spanish equivalent, in theory apply to Canadians, Mexicans, etc., as well.

For example, the term is used to describe systems such as verlan and louchébem, which retain French syntax and apply transformations only to individual words ( and often only to a certain subset of words, such as nouns, or semantic content words ).

For example, psychologists use anagram-oriented tests, often called " anagram solution tasks ", to assess the implicit memory of young adults and adults alike.

For this reason, bees and beehives often appear in the saint's symbology.

Cash often included the song when he toured prisons, saying " For the three minutes that song is going on, everybody is free.

For geopolitical purposes, the Sinai Peninsula of Egypt – east of the Suez Canal – is often considered part of Africa.

For instance member nations of the Commonwealth where English is not spoken natively, such as India, often closely follow British English forms, while many American English usages are followed in other countries which have been historically influenced by the United States, such as the Philippines.

For example, his engraving of The Last Supper of 1523 has often been understood to have an evangelical theme, focussing as it does on Christ espousing the Gospel, as well the inclusion of the Eucharistic cup, an expression of Protestant utraquism, although this interpretation has been questioned.

For the first few decades of indirect fire, the firing data were often calculated by the observer who then adjusted the fall of shot onto the target.

For normal calculation a number zero is often needed, here most notably when calculating the number of years in a period that spans the epoch ; the end years need only be subtracted from each other.

For laboratory syntheses, Raney nickel ( an alloy of nickel and aluminium ) is often employed.

For example, Jains often do not go out at night, when they are more likely to step upon an insect.

Aircraft with special characteristics that give them unique capabilities will often display those in their demos ; For example, Russian fighters with Thrust vectoring may be used to perform Pugachev's Cobra or the Kulbit, among other difficult manoeuvers that cannot be performed by other aircraft.

For this reason, a low dose of a benzodiazepine is often used for several weeks when initiating SSRI / SNRI therapy in order to counteract the initial anxiety caused by the drugs until the therapeutic delay of the SSRI / SNRI is finished and the drug becomes effective.

For example, anticholinergics are often used to alleviate the motor side effects of antipsychotics.

For this reason, Benedict is often called the founder of western monasticism.

For a time, memory capacities were often expressed in K, even when M could have been used: The IBM System / 370 Model 158 brochure ( 1972 ) had the following: " Real storage capacity is available in 512K increments ranging from 512K to 2, 048K bytes.

For example: in Africa, the bronze heads of the Kingdom of Benin ; in Europe, Grecian bronzes typically of figures from Greek mythology ; in east Asia, Chinese bronzes of the Shang and Zhou dynasty — more often ceremonial vessels but including some figurine examples.

For example in the case of anthrax, it is likely that by 24 – 36 hours after an attack, some small percentage of individuals ( those with compromised immune system or who had received a large dose of the organism due to proximity to the release point ) will become ill with classical symptoms and signs ( including a virtually unique chest X-ray finding, often recognized by public health officials if they receive timely reports ).

For example a B205 console was often shown in the television series Batman as the Bat Computer ; also as the computer in Lost in Space.

For the late 19th century the music publishing industry found a market for what are often termed sentimental ballads, and these are the origin of the modern use of the term ballad to mean a slow love song.