Unfortunately, few of the artists ( writers, movie producers, dramatists and musicians ) who have used American folklore since 1900 have known enough to distinguish between the two streams even in the most general of ways.

Unfortunately, most operators are not commutative.

Unfortunately, some of the most commonly occurring disorders, such as heart disease, high blood pressure, Alzheimer's disease, arthritis, and diabetes, are caused by the combined effects of variations in many genes.

Unfortunately, most of the work was lost in a fire prior to publication.

Unfortunately, most lubricant that ends up directly in the environment is due to general public discharging it onto the ground, into drains and directly into landfills as trash.

Unfortunately the worldwide Great Depression of the time, triggered by the Wall Street Crash of 1929, meant that most of the plans remained on the drawing board.

Unfortunately, however, with the advent of artificial island development, most of their habitat is destroyed, or occupied by man-made structures.

Unfortunately, ambitious and uncalculated construction schemes, political unrest and an ever present international conflict, and presence of the most lucrative world supply of oil, along with lack of cooperation between Arab states and Iran, has had a negative impact on the survival of many marine species, including dugongs.

Unfortunately the superconducting properties of most materials break down as current increases, at a level known as the critical current.

Unfortunately, most long-distance communication channels cannot transport a DC component.

Unfortunately, the pressure also subtly degrades the image in the plate, smoothing the roughened areas and closing the lines ; a copper plate is good for, at most, a few hundred printings of a strongly etched imaged before the degradation is considered too great by the artist.

Unfortunately, the once-promising plan was for the most part a disappointment.

Unfortunately, high excursion, at high power levels, tends to produce more distortion from inherent mechanical and magnetic effects in electro-dynamic drivers ( the most common sort ).

Unfortunately programs could not switch directly between them, so eventually, some new memory-model APIs were developed, VCPI and DPMI, the latter becoming the most popular.

Unfortunately, most of the writings of the Báb have been lost.

Unfortunately, many patients, not realizing the need for dental treatment, do not see a dentist until most of their teeth are beyond the point of restoration.

Unfortunately, the fact that a character was stored in a byte led to the two terms being used interchangeably in most documentation.

Unfortunately, most of his officers and soldiers were tired of the delaying tactics and demanded another attempt at an open battle.

Early administration of anthelmintics, such as mebendazole or albendazole, decreases the likelihood of larval encystation, particularly if given within three days of infection Unfortunately, most cases are diagnosed after this time.

Unfortunately, he has never learned how to make hooks with a barb, and so most of his fish escape.

Unfortunately all marks, for the most part were gone and he had to lay the whole town markings out again.

Unfortunately, in the early morning hours of November 3, 1908, a fire swept throughout Savannah and destroyed most of the village.

Unfortunately, since it is indeed a small town with limited infrastructure, the city has lost most of its business to Walla Walla, Washington just to the north.

Unfortunately, years later a fire burned most of this building down.

Unfortunately, Groom's vision of the finest and most desirable cattle ranch in the United States did not materialize for him.

Unfortunately, this means that older audio amplifiers or stereos often produce poor quality output on some modern, low impedance headphones.

Unfortunately, none took the generous offer.

Unfortunately, he was unable to offer convincing remedies for the financial problems and was forced to resign on 21 November.

Unfortunately, Turhan collapses before he can make this offer in person to G ' Kar, though his message is relayed to G ' Kar through Dr. Franklin.

Unfortunately, the station struggled to get an audience mainly because it was a UHF station at a time when television manufacturers were not required to offer UHF tuners.

Unfortunately, economic theory based on the assumption of convexity and perfect divisibility does not offer any clue to this challenging economic problem.

Unfortunately these " aerial " pictures offer little information about the mechanics of the biological system in question.

Unfortunately for the Company and Rolls-Royce, British Railways, seeing a potential for their Swindon-built class 14 diesel hydraulic locomotives made Stewart and Lloyds an offer of 26 locomotives around three years old at a fraction of their original cost.

Unfortunately, an offer to pay for additional fossils by the piece led to specimens being broken into splinters by native helpers.

Unfortunately for most Americans, these annuities cannot invest in US securities without punitive taxation due to the offshore status of the insurance carriers that offer these annuity products.

Unfortunately, once the band left Epic, the offer from Polygram melted away.

Unfortunately his father, Shep ( David Morse ), and his older brother, Blair ( David Moscow ), don ’ t offer any kind of guidance, and find themselves detaching at the seams.

Unfortunately, the formula doesn't fulfill the preconditions for the Banach fixed point theorem, thus methods based on it don't work.

Unfortunately it is now believed to be an intractable computational problem to find a Brouwer fixed point or equivalently a Sperner coloring even in the plane, in the general case.

Unfortunately the gearing arrangements ( and thus the key ) were fixed for any given machine, so triple encryption was recommended for security: a secret nonlinear step, followed by the wide diffusive step from the machine, followed by a third secret nonlinear step.

Unfortunately, because of the fixed exchange rate, privatization agreements generally linked price increase flexibility to the rate of U. S. inflation, which was often higher than that in Argentina.

Unfortunately, Percival had resisted the construction of fixed defences in Johore, as on the North shore of Singapore, dismissing them in the face of repeated requests to start construction from his Chief Engineer, Brigadier Ivan Simson, with the comment " Defences are bad for morale.