However, although these enzymes can produce oxidants, the relative importance of the electron transfer chain to other processes that generate peroxide is unclear.

However, despite the success of Drude's free electron model, it had one notable problem, in that it was unable to correctly explain the electronic contribution to the specific heat of metals, as well as the temperature dependence of resistivity at low temperatures.

However, metal electrode surfaces can cause a region of the vacuum to become conductive by injecting free electrons or ions through either field electron emission or thermionic emission.

However, to the best of our knowledge, the electron's magnetic moment is not due to a current loop, but is instead an intrinsic property of the electron.

However, electron microscopes are expensive instruments that are costly to maintain.

However, when the absorbed electromagnetic radiation is intense, it is possible for one electron to absorb two photons ; this two-photon absorption can lead to emission of radiation having a shorter wavelength than the absorbed radiation.

However in materials with a filled electron shell, the total dipole moment of the electrons is zero because the spins are in up / down pairs.

However, since the nucleus is much heavier than the electron, the values are nearly the same.

However in the case of the free electron laser, atomic energy levels are not involved ; it appears that the operation of this rather exotic device can be explained without reference to quantum mechanics.

However, sometimes — either spontaneously, or owing to an applied external magnetic field — each of the electron magnetic moments will be, on average, lined up.

However, like antiferromagnets, neighboring pairs of electron spins like to point in opposite directions.

However, as Feynman points out, it fails totally to explain why particles such as the electron have the masses they do.

However, tunneling does require that there is an empty level of the same energy as the electron for the electron to tunnel into on the other side of the barrier.

However very thin layers ( below, say, ) become partially conductive because of electron tunneling.

However, usually the Fermi energy is referenced to energy zero: that of the lowest energy electron

However, the mass of the tau ( discovered in the mid 1970s ) () is nearly twice that of the proton, and about 3, 500 times that of the electron.

However, after approximately element 120, the proximity of the electron shells makes placement in a simple table problematic.

However, in order for an electron to jump from a valence band to a conduction band, it requires a specific minimum amount of energy for the transition.

However, when forming a bulk metal, Li atoms come to a resonance structure by taking 1 electron from its neighbouring Li atom and the resultant electronic configuration becomes 1s < sup > 2 </ sup > 2s < sup > 1 </ sup > 2p < sup > 1 </ sup > ( e < sup >-</ sup >).

However, Orliac ( 2005 ) examined seven objects ( tablets B, C, G, H, K, Q, and reimiro L ) with stereo optical and scanning electron microscopes and determined that all were instead made from Pacific rosewood ( Thespesia populnea ); the same identification had been made for tablet M in 1934.

However, ELISA testing, related serological tests, and direct electron microscope observation of viruses are more modern methods for detection.

However, calculations are generally quite lengthy ( even for simple cases as for the radiation emitted by an electron in a bending magnet, they require Airy function or the modified Bessel functions ).

However, the unit of energy electronvolt reminds us that the elementary charge was once called electron.

However, pion production events drain 20 % of the energy of a cosmic ray proton as compared with only 0. 1 % of its energy for electron positron pair production.

However, in itself:

However, the Church declared that "' Extreme unction ' ... may also and more fittingly be called ' anointing of the sick '" ( emphasis added ), and has itself adopted the latter term, while not outlawing the former.

During a large revolt, dissidents marched on Córdoba itself ; However, Abd al-Rahman always managed to stay one step ahead, and crushed all opposition ; as he always dealt severely with dissidence in al-Andalus.

However, as occurred so often in this region, the demise in 1030 of this military genius who had expanded the empire to its farthest reaches was the death knell of the dynasty itself.

However, others point to the Council of Nicaea as proof in and of itself that Arianism was a real theological ideology.

However, Gilson concedes some doubt on the possibility of being wrong: " yet, this is taking a chance, for, after all, being itself might happen not to be existentially neutral.

However, the strict acrostic style of four of the five poems is not found at all in the Book of Jeremiah itself and Jeremiah's name is not found anywhere in the book itself ( nor any other name, for that matter ), so authorship of Lamentations is disputed.

However enough had been taken to England, Scandinavia, Western Europe, and America in the late 19th century for the breed to establish itself outside its native country.

However, a viewing of the film itself reveals that Lugosi said this line correctly, the exact words being, " Don't be afraid of Lobo ; he's as gentle as a kitten.

However, current research cannot ascertain whether the extinctions occurred prior to or during the boundary interval itself.

However, the odds bet cannot be made independently, so the house retains an edge on the pass line bet itself.

However, the evolution has stopped by itself when the last descendant, an enormously large crab, was created, being unable to reproduce itself due to lack of energy and materials.

However, Motif itself is expected to be released as free software in the near future to remedy this.

From such a surrender, the dissolution of the body corporate ensues .” Nor does there seem to have been much question that by “ a judgment of forfeiture against a corporation itself, it may be dissolved .” However, Supreme Court Justice Wilson, lecturing in his unofficial capacity, at least, suggests his displeasure with the doctrine that corporate dissolution cannot be predicated “ by a judgment of ouster against individuals.

However, the church in communion with the Bishop of Rome, both in its Western form and in that of the Eastern Catholic Churches, has always considered itself to be the historic Catholic Church, with all others as " non-Catholics " and regularly refers to itself as " the Catholic Church ".

However, as Emma frees him of the Void's influence, a minute sliver of the entity itself remains in her mind.

However, he cannot permanently ' reprogram ' human minds to believe what he might want them to believe even if he wanted to do so, explaining that the mind is an organism that would always recall the steps necessary for it to reach the present and thus ' rewrite ' itself to its original setting if he tried to change it.

However, Compaq had little idea what to do with its acquisitions, and soon found itself in financial difficulty of its own.

However, true detective fiction is more often considered in the English-speaking world to have begun in 1841 with the publication of " The Murders in the Rue Morgue " itself, featuring " the first fictional detective, the eccentric and brilliant C. Auguste Dupin ".

However, if the sequence itself is definable in the sense that we can specify a single formula for all its terms, then its limit will necessarily be a definable number.

However, the Hurd itself remains under development, and as such is not ready for use in production systems.

However, there is no evidence that LDDC foresaw this scale of development and nearby Heron Quays had already been developed as low density offices when Canary Wharf was proposed, with similar development already underway on Canary Wharf itself, Limehouse Studios being the most famous occupant.