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The method tests the capability of mutagen in creating mutations that can result in a reversion back to a non-auxotrophic state so that the cells can grow on a histidine-free medium.
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method and tests
Post hoc tests such as Tukey's range test most commonly compare every group mean with every other group mean and typically incorporate some method of controlling for Type I errors.
The Talmuds are notable for the way they combine law and lore, for their explication of the midrashic method of interpreting tests, and for their accounts of debates among rabbis, which preserve divergent and conflicting interpretations of the Bible and legal rulings.
Coué's method did not emphasise " sleep " or deep relaxation and instead focused upon autosuggestion involving a specific series of suggestion tests.
Englishman Francis Galton coined the terms psychometrics and eugenics, and developed a method for measuring intelligence based on nonverbal sensory-motor tests.
German psychologist William Stern proposed a method of scoring children's intelligence tests in 1912.
The key benefit of Time Domain reflectometry over other testing methods is the non-destructive method of these tests.
A key part of the analytic method involves analyzing concepts via " intuition tests ".
Because this method only tests for expansion of the CGG repeat, individuals with FXS due to missense mutations or deletions involving FMR1 will not be diagnosed using this test and should therefore undergo sequencing of the FMR1 gene if there is clinical suspicion of FXS.
* c. 1200 — The Andalusian-Arabian biologist Abu al-Abbas al-Nabati develops an early scientific method for botany, introducing empirical and experimental techniques in the testing, description and identification of numerous materia medica, and separating unverified reports from those supported by actual tests and observations.
* Unit Testing, a software verification and validation method in which a programmer tests if individual units of source code are fit for use.
For cystic echinococcosis, imaging is the main method that is relied on for diagnosis while serology tests ( such as indirect hemogglutination, ELISA ( enzyme linked immunosorbent assay ), immunoblots or latex agglutination ) that use antigens specific for E. granulosus are used to verify the imaging results.
Like cystic echinococcosis, imaging is the major method used for the diagnosis of alveolar echinococcosis while the same types of serologic tests ( except now specific for E. multilocularis antigens ) are used to verify the imaging results.
With genetic tests becoming more common, a wide variety of tests may use the blood drawn by this method.
Many neonatal units ( SCBUs ) now use this method to carry out the daily blood tests ( blood count, electrolytes ) required to check the progress of ill neonates.
The few tests that have been made of the validity of forensic fingerprinting have not been supportive of the method.
Their method involved ABX listening tests.
* Some method of review that reinforces or tests understanding of the content in the related module or section.
If such a class creates another object that can't be put under automated unit tests ( perhaps it communicates with a production database that isn't always available ), then the creation of objects is placed in the virtual factory method in class.
Abu al-Abbas al-Nabati developed an early scientific method for botany, introducing empirical and experimental techniques in the testing, description and identification of numerous materia medica, and separating unverified reports from those supported by actual tests and observations.
* Computer-based testing, a method of administering tests electronically using a computer or an equivalent electronic device
From these tests, ratings of pleasantness can be obtained using either the direct scaling or magnitude matching method and may be of value in the diagnosis of dysgeusia.
Although many of the tests are based on ratings using the direct scaling method, some tests do use the magnitude-matching procedure.
method and capability
This method meant the aircraft no longer had a search capability while supporting the launched Sparrow, effectively reducing situational awareness.
Another common method for dealing with this capability mismatch is to reduce the accuracy of the device being calibrated.
However, some believe this delivery method has been rather ineffective in attacking a nation's warmaking capability, due to the imprecise nature of the attack.
In aviation, area navigation ( RNAV )— a method of navigation that permits aircraft operation on any desired flight path within the coverage of station-referenced navigation aids or within the limits of the capability of self contained aids, or a combination of these — relies heavily upon waypoints.
There is no common method for this process, and the performance depends on the capability of each color matching method.
His discovery, in August 1969, led to complete counterpoint capability and a new instrument, the Chapman Stick, and to a new method Chapman called the " Free Hands " method.
After obtaining a copy from the parent class, a class ' own clone () method may then provide custom cloning capability, like deep copying ( i. e. duplicate some of the structures referred to by the object ) or giving the new instance a new unique ID.
In a realistic assessment, the two delivery systems bring different advantages and disadvantages, as both the primary vehicles and delivery method ( fast-roping vs. parachute ) are so different in capability.
The Command and Service Module CSM-009 was a Block I version, designed before the Lunar Orbit Rendezvous method was chosen for the Apollo lunar landing ; therefore it lacked capability to dock with the Apollo Lunar Module.
This method was not without its own disadvantages, as it required special drivers offering only very basic file read / write capability ( or read-only on Macintosh systems ) and was limited to floppy disk transfer speeds.
This method of power generation and offensive capability was later adopted by the Interstellar Alliance into the creation of their prototype destroyer vessels several years after the Shadow War.
By using an orthogonal design method, ants in the feasible domain can explore their chosen regions rapidly and efficiently, with enhanced global search capability and accuracy.
In response to the changing public communications network, new alarm systems often can use broadband signaling as a method of alarm transmission, and manufacturers are including IP reporting capability directly in their alarm panel products.
The advantage of photocontrast homing method over traditional heat-seeking homing heads using PbS elements is that it negates the most serious drawback of early-generation IR-homing missiles: complete lack of front-aspect engagement capability against approaching jets.
Submarine-launched ballistic missiles are the traditional, but very expensive, method of providing a second strike capability, though it needs to be supported by a reliable method of identifying who the attacker is.
method and mutagen
This is a method that combines a standard and efficient technique of mutagenesis with a chemical mutagen such as Ethyl methanesulfonate ( EMS ) with a sensitive DNA screening-technique that identifies single base mutations ( also called point mutations ) in a target gene.
The method combines a standard and efficient technique of mutagenesis with a chemical mutagen such as Ethyl methanesulfonate ( EMS ) with a sensitive DNA screening-technique that identifies single base mutations ( also called point mutations ) in a target gene.
method and creating
A biological weapon is useful to terrorists mainly as a method of creating mass panic and disruption to a state or a country.
The ionization method of creating cathode rays used in Crookes tubes is today only used in a few specialized gas discharge tubes such as krytrons.
The illumination of the subject is also a key element in creating an artistic piece, and the interplay of light and shadow is a valuable method in the artist's toolbox.
Muhammad Salih Tahtawi of Sindh headed the task of creating a massive, seamless celestial globe using a secret wax casting method in the Mughal Empire, the famous celestial globe of Muhammad Salih Tahtawi is inscribed with Arabic and Persian language | Persian inscriptions and was completed in the year 1631 during the reign of the Mughal Emperor Jahangir.
Between 1880 and 1887, Heaviside developed the operational calculus ( involving the D notation for the differential operator, which he is credited with creating ), a method of solving differential equations by transforming them into ordinary algebraic equations which caused a great deal of controversy when first introduced, owing to the lack of rigour in his derivation of it.
* Tutorial on Medieval method of creating quills
This paper describes a method of creating tries of buckets which figuratively burst into sub-tries when the buckets hold more than a predetermined capacity of strings, hence the name, " Burstsort ".
Tatting with a shuttle is the earliest method of creating tatted lace.
The secret ballot method ensured that the privacy of voters would be protected ( hence government jobs could no longer be awarded to loyal voters ) and each state would be responsible for creating one official ballot.
Unreals method of creating maps differs in major ways from that of Quake.
Other science fiction books have promoted the idea of virtual reality as a partial, but not total, substitution for the misery of reality, or have touted it as a method for creating breathtaking virtual worlds in which one may escape from Earth.
The essence of the Abstract Factory method Pattern is to " Provide an interface for creating families of related or dependent objects without specifying their concrete classes ".
* " Bonding " may refer to a method for creating electric interconnects:
An experienced businessman, Leeuwenhoek realized that if his simple method for creating the critically important lens was revealed, the scientific community of his time would likely disregard or even forget his role in microscopy.
After developing his method for creating powerful lenses and applying them to study of the microscopic world, Van Leeuwenhoek was introduced via correspondence to the Royal Society of London by the famous Dutch Physician Reinier de Graaf.
* Armazém de Calor: Only used by the Madeira Wine Institute, this method involves storing the wine in large wooden casks in a specially designed room outfitted with steam-producing tanks or pipes that heat the room, creating a type of sauna.
It has also been suggested that the method used by Gutenberg involved using a single punch to make a mould, but the mould was such that the process of taking the type out disturbed the casting, creating variants and anomalies, and that the punch-matrix system came into use possibly around the 1470s.
* Eye splice, a method of creating a permanent loop in the end of multi stranded rope by means of rope splicing.
A mnemonic link system, sometimes also known as a chain method, is a method of remembering lists, based on creating an association between the elements of that list.
A probably more effective method rather than creating a story is to actually link each element of the list with the following, seeing in one's mind's eye an image that includes two elements in the list that are next to each other.
The most common method of creating screens — amplitude modulation — produces a regular grid of dots that vary in size.
The other method of creating screens — frequency modulation — is used in a process also known as stochastic screening.
The singleton pattern is implemented by creating a class with a method that creates a new instance of the class if one does not exist.
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