However, kevlar breaks down in chlorine and UV light, complicating the cleaning process.

However, this type of UV radiation is significantly less harmful to DNA, although it may still potentially cause indirect genetic damage in skin ( see ultraviolet for more about UV-A ).

However, UVB heat lamps have not been proven to have the same quality as direct, unfiltered UV rays from the sun.

However, due to Gerard't Hooft's anomaly matching condition, any chiral anomaly can be described either by the UV degrees of freedom ( those relevant at high energies ) or by the IR degrees of freedom ( those relevant at low energies ).

However, this doesn't necessarily mean that string theory / M-theory is the only possible UV completion of supergravity ; supergravity research is useful independent of those relations.

However, in order to cause true melanogenesis-tanning by means of UV exposure, some direct DNA photodamage must first be produced, and this requires UV-B exposure ( as present in natural sunlight, or sunlamps that produce UV-B ).

However, during times of environmental stress ( e. g., UV or heat exposure ), ROS levels can increase dramatically.

However, these integrals are often divergent – see IR divergence and UV divergence – and a cutoff is needed.

* However, estimates of surface UV radiation from satellite data ( ozone and cloud cover ) started in November 1978 with the launch of Nimbus-7 / TOMS ( Total Ozone Mapping Spectrometer ) followed by Meteor-3 / TOMS in 1991, Earth-Probe / TOMS in 1996, and by OMI ( Ozone Measuring Instrument on the EOS / AURA spacecraft ) in July 2004.

However, coatings containing aromatic urethane crosslinkers generally do not perform well in terms of UV light resistance.

However, the plant polysaccharides present in Aloe vera, although offering no direct protection against sunburn, may offer skin protection by specifically targeting pathways activated by UV radiation that can lead to non-melanoma skin cancer.

However, the best-known flare star is UV Ceti, discovered in 1948.

However, because the bond is stronger and more resilient between the G: C pairs than between A: T pairs, a commonly proposed selective explanation is that a high GC-content is an adaption to harsh conditions, either high temperature or UV radiation.

However, in the UV, the white dwarf can be as bright or brighter, as its higher temperature means it emits most of its radiation at these shorter wavelengths.

However, the dyes in these cells also suffer from degradation under heat and UV light, and the cell casing is difficult to seal due to the solvents used in assembly.

However when its main backer, governor Mouragues, left Upper Volta in 1953 the unity of UV became fragile.

However splitting the flow to UV will decrease the sensitivity of spectrophotometric detectors.

However with the addition of a degradation initiator to the plastic, it is possible to achieve a controlled UV / oxidation disintegration process.

However, Hammer worked primarily on the incandescent electric lamp and was put in charge of tests and records on that device.

However, lamp life may not be extended as much as predicted.

However, when Roger Lancelyn Green asked him how a lamp post came to be standing in the midst of Narnian woodland, Lewis was intrigued enough by the question to attempt to find an answer by writing The Magician's Nephew, which features a younger version of Professor Kirke from the first novel.

However, in addition to motor drives for fans, pumps and robotic servos, there was a great need for compact and low cost means for applying adjustable power for many devices, such as electric stoves and lamp dimmers.

However, when things went wrong and the main relief valve stuck open, the unlighted lamp was actually misleading the operators by implying that the valve was shut.

However after burning with a bright light for some minutes in his laboratory, the lamp broke down due to excessive current.

However, Sokurah drops the lamp when the cyclops throws a boulder into the sea, overturning their boat, though the men are able to swim to the ship.

However, Sinbad then refuses to give him the lamp until they get back to the ship, so Sokura brings to life a skeleton swordsman to challenge him.

However, they are much more expensive, due to the ballast circuit required to start and operate the lamp.

However, while too low a current causes flickering, too high a current increases the wear of the electrodes by stimulating sputtering, which coats the internal surface of the lamp with metal and causes it to darken.

However because the lamp was suspended above and outside the reflector, a large amount of light was cast to the sides inside the projector body that was wasted and required a very large lamp for sufficient screen illumination.

However, a faulty fluorescent lamp can flicker at a much lower rate and trigger seizures.

However, as of recent years, some novelty stores have begun selling a nightlight plasma lamp that can fit into a standard light socket.

However, one of the two main types of pottery used was the blubber lamp, a small, oval deep dish in which you ignited a chunk of blubber or even oil with a wick.

However, the instrument never received much attention and the term “ slit lamp ” did not appear in any literature again until 1914.

However, Philips ' UHP lamp, introduced in 1995, contains only mercury.

However, high-frequency operation does not increase lamp efficacy as for fluorescent lamps.

However, the police had shut down the hospital, and she found Irizarry leaning against a lamp post.

However, in 1940 the Germans invaded the Netherlands and in 1942, being a Jew, he was forced to interrupt his studies ( Wouters and Samama 2001 )— irrevocably, as it turned out, because his hopes of becoming a neuro-surgeon were dashed during World War II due to an exploding carbide lamp, which virtually blinded him in his left eye while in hiding.

However, the shape of the old fountain / oil lamp was reused in the new sculpture.

However, episodes such as " The Gift ", where Janeway relates how she and Tuvok purchased a meditation lamp from a Vulcan, who ups the price upon seeing their Starfleet uniforms, paint a different picture:

However, this requires leaving the television on ( which wastes electricity and reduces the lamp life of the backlight ), and uses television speakers which are fairly limited in sound quality.

However, upon announcing her decision to marry Aladdin, Jafar takes over Agrabah by stealing the lamp from Aladdin.