Often what appears to be a single step conversion is in fact a multistep reaction.

The sand also has the dimensional instability associated with the conversion of quartz from alpha quartz to beta quartz at 1250 degrees F. Often additives such as wood flour are added to create a space for the grains to expand without deforming the mold.

Often, " reverting " for B ' nei Anusim is, for all intents and purposes, a nominal or symbolic conversion, an affirmation of faith and commitment to the Jewish people, immersion in a mikveh ( body or collection of water fit for the purpose of ritual immersion ), and for males a brit milah ( circumcision ) or hatafat dam brit ( if already circumcised ).

Often such cycles show the conversion of a precatalyst to the catalyst.

Often the historian must consider the use of intuition or instinct by those individuals or nations which he is studying.

Often, the instruction to be fetched must be retrieved from relatively slow memory, causing the CPU to stall while waiting for the instruction to be returned.

Often they are the first port of call to critically ill or gravely injured patients, and must perform a variety of procedures to stabilize such patients, such as intubation, burr hole, cricothyroidotomy, and emergency laparotomy or thoracotomy to stanch bleeding.

Often, for gene transcription to occur, a number of transcription factors must bind to DNA regulatory sequences.

Often, all of the surfaces exposed to the vacuum must be baked at high temperature to drive off adsorbed gases.

Often Tom must protect his new invention from villains " intent on stealing Tom's thunder or preventing his success ," but Tom is always successful in the end.

Often, through-hole and surface-mount construction must be combined in a single assembly because some required components are available only in surface-mount packages, while others are available only in through-hole packages.

Often, a straight clue is not in itself sufficient to distinguish between several possible answers ( often synonyms ), and the solver must make use of checks to establish the correct answer with certainty.

Often, but not always, the player must build specific structures to unlock more advanced units in the tech tree.

Often there is a time limit, usually 30 days, within which a will must be admitted to probate.

Often the frequency of such drills and any special actions that must be taken during such drills are listed in the statute.

Often, however, energy must be added to the process by combustion of fuel or, in the case of some smelting processes, by the direct application of electrical energy.

Often these practitioners must also obtain a license or be professionally registered.

Often the system is set up so that once a call is made to an emergency telephone number, it must be answered.

Often the batsman must be warned first by the bowler who must say " Maori stump warning " or whatever term is colloquially used.

Often there is a clause in the contract that allows this ; for example, if a bond issuer wishes to rebuy a 30 year bond at the 25th year, they must pay a premium.

Often, the equity of the property must be twice the amount of the bail set.

Often what drives the plot is the hero's need to find the object before the villain and use it for good rather than evil, or if the object has been broken by the villains, to retrieve each piece that must be gathered from each antagonist to restore it, or, if the object itself is evil, to destroy it.

Often characterized by " must make " moves, i. e. failure to execute a specific maneuver may result in serious injury or death.

On diesel engines the diesel fuel is still needed to ignite the gas mixture, so a mechanically regulated diesel engine's " stop " linkage and probably " throttle " linkage must be modified to always give the engine a little bit of injected fuel ( Often under the standard idle per-injection volume ).

Often, such licenses are enforced by implementing in the software a product activation or digital rights management ( DRM ) mechanism seeking to prevent unauthorized use of the software by issuing a code sequence that must be entered into the application when prompted or stored in its configuration.

Often, these two buses must operate at the same frequency.

Often the writer of the call does not actually own the underlying instrument, and must purchase it on the open market in order to be able to sell it to the buyer of the call.

Often it is recognized that all the details of the pattern may not be essential to the outcome but, because the pattern was empirically determined and not developed through theoretical understanding, one is never quite certain which behavior elements are effective, and the whole pattern becomes ritualized.

Often, in working out-of-doors under all conditions of light and atmosphere, a particular passage that looked favorable in relation to the subject will be too bright, too dull, or too light, or too dark when viewed indoors in a mat.

Often it is said to be " about " long.

Often, they consider that morality seems to be binding – obligations are seen to convey more than just a preference, but imply that the obligation will stand, regardless of other factors or interests.

Often, the delayed signals will be slightly pitch shifted to more realistically convey the effect of multiple voices.

Often the amount of material in the solution being analyzed may be determined.

Often the same section of a sketch can be found in several different pictures.

Often in palaces a bridge will be built over an artificial waterway as symbolic of a passage to an important place or state of mind.

Often this can be inferred by the absence of a normal component ( e. g., one gene ).

Often these columns can be loaded with different metals to create a column with a targeted affinity.

Often, a serial bus can be operated at higher overall data rates than a parallel bus, despite having fewer electrical connections, because a serial bus inherently has no timing skew or crosstalk.

Often assumed to be illiterate, Catherine is acknowledged by Raymond in his life of her as capable of reading both Latin and Italian, and another hagiographer, Tommaso Caffarini, claimed that she could write in her own hand, though the majority of her written work was dictated.

Often the aim will be to achieve an alphabetical or numerical ordering that follows the standard criteria as described in the preceding sections.

Often, several drums, other than timpani drums, can be arranged together to create a drum kit.

Often the reason is genetic ( mutation or chromosome abnormality ), but there can be environmental influence ( like teratogens ) or stochastic events.

Often, the diplomat's visas are canceled ; and the diplomat and her or his family may be barred from returning to the United States.

Often in a post-colonial context, the growing recognition and use of indigenous education methods can be a response to the erosion and loss of indigenous knowledge and language through the processes of colonialism.

Often logic " 0 " will be a lower voltage and referred to as " Low " while logic " 1 " is referred to as " High ".

Often TEM can be equipped with the scanning option and then it can function both as TEM and STEM.

Often, if just a little bias is permitted, then an estimator can be found with lower MSE and / or fewer outlier sample estimates.

Often the early phase, from 1. 8 to 1. 25 Ma, is considered to be a separate species, Homo ergaster, or it is seen as a subspecies of Homo erectus, Homo erectus ergaster.

Often, 3 Hz spike-wave or multiple spike discharges can be seen on EEG.