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First base called metric

A third metric that has proven useful in the optimization of run parameters and gel formulations is the first base called (FBC). This is the first position in the sequence that is correctly called and it is located typically 5-15 bases from the 3 end of the primer used in the extension reaction. Factors affecting the FBC include the gels ability to sieve over a wide range of sizes, including the smaller extension products and congestion that often occurs early in the electropherogram due to coelution of unincorporated terminators, salts, and unextended primer. [Pg.497]

The procedure of DG calculations can be subdivided in three separated steps [119-121]. At first, holonomic matrices (see below for explanahon) with pairwise distance upper and lower limits are generated from the topology of the molecule of interest. These limits can be further restrained by NOE-derived distance information which are obtained from NMR experiments. In a second step, random distances within the upper and lower limit are selected and are stored in a metric matrix. This operation is called metrization. Finally, all distances are converted into a complex geometry by mathematical operations. Hereby, the matrix-based distance space is projected into a Gartesian coordinate space (embedding). [Pg.237]

Traditionally, measurements in the clinical laboratory have been made in metric units. In the early development of the metric system, units were referenced to length, mass, and time. The first absolute systems were based on the centimeter, gram, and second (CGS) and then the meter, kilogram, and second (MKS). The SI is a different system that was accepted internationally in 1960. The units of the system are called SI units. [Pg.5]

The very roots of DPT can be traced back to Pauli s Handbuch article [38]. A perturbation expansion based on a change of the metric was first explicitly considered by Sewell [33], who only studied the leading order. After a not entirely fair criticism of this approach by Titchmarsh [66] it was forgotten for decades. Rutkowski [15] rediscovered this idea in a somewhat different form. He did not make a change of the metric, but instead he decomposed the Dirac equation, into what he called an equivalent of the Schrodinger equation and a remainder. [Pg.713]

The first round of so-called leading indicators was little more than a measurement of safety-related activities hours of safety training, attendance at safety meetings, participation in safety programs, etc. OSHA s crackdown on incentives that could potentially suppress reporting of accidents drove many organizations to base their incentives on these activity metrics rather than simply not... [Pg.163]

To conclude this first part, the choice of the sodium treatment solution for Greys Malville is based on a so-called on-line drainage system (no buffer storage) using tools fabricated for this operation, followed in real time by treatment at 6 metric tonnes/day in two caustic soda transformation reactors (NOAH process) nearly identical to the SDP ones. A total of 13 860 m of caustic soda from primary sodium will be mixed with cement to make packages (26 400 cubes of 1 m ) that will be stored on the surface since they are only very slightly radioactive (< 100 Bq/g), and this in less than 2 years. [Pg.188]

The first model reduction algorithm based on the activity metric is shown in Fig. 2.2 and is called Model Order Reduction Algorithm (MORA). Given the full model, the goal of MORA is to order the importance of the energy elements in that model as given by their activity and reduce the size of the model based on a user-supplied threshold of the percent of the total activity to be retained in the reduced model. [Pg.62]

The first measurements were probably based on the human body (the length of the foot, for example). In time, fixed standards developed, but these varied from place to place. Each country or government (and often each trade) adopted its own units. As science became more quantitative in the seventeenth and eighteenth centuries, scientists found that the lack of standard units was a problem. They began to seek a simple, international system of measurement. In 1791 a study committee of the French Academy of Sciences devised such a system. Called the metric system, it became the official system of measurement for France and was soon used by scientists throughout the world. Most nations have since adopted the metric system or, at least, have set a schedule for changing to it. [Pg.20]

Atomic basis functions in quantum chemistry transform like covariant tensors. Matrices of molecular integrals are therefore fully covariant tensors e.g., the matrix elements of the Fock matrix are F v = (Xn F Xv)- In contrast, the density matrix is a fully contravariant tensor, P = (x IpIx )- This representation is called the covariant integral representation. The derivation of working equations in AO-based quantum chemistry can therefore be divided into two steps (1) formulation of the basic equations in natural tensor representation, and (2) conversion to covariant integral representation by applying the metric tensors. The first step yields equations that are similar to the underlying operator or orthonormal-basis equations and are therefore simple to derive. The second step automatically yields tensorially correct equations for nonorthogonal basis functions, whose derivation may become unwieldy without tensor notation because of the frequent occurrence of the overlap matrix and its inverse. [Pg.47]


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See also in sourсe #XX -- [ Pg.497 ]




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