However, there are still several types of calls that necessitate the use of telephone operators.

However, the litter remained, augmented by several dozen lunchroom suppers.

However, to the extent that the monetary authorities, in their effort to ease credit in the next several months, conduct their open market operations in longer-term Government bonds, they will certainly act to accentuate any tendency for long-term interest rates to ease as a result of market forces.

However, several telescope manufacturers have recently developed telescope systems that are calibrated with the use of built-in GPS, decreasing the time it takes to set up a telescope at the start of an observing session.

However, the Vandals tried for several decades to force their Arian beliefs on their North African Nicene subjects, exiling Nicene clergy, dissolving monasteries, and exercising heavy pressure on non-conforming Christians.

However, Wolfram points out that at the time " Clovis got no farther than the Seine ; only after several more years did the Franks succeed in occupying the rest of the Gallo-Roman buffer state north of the Loire.

However, he was not, according to several sources, Dinis ' favourite son ; his half-brother, the illegitimate Afonso Sanches, enjoyed full royal favour.

However, several other biographers of Alexander dispute the claim, including the highly regarded secondary source, Plutarch.

However, there may be several such allophones, or the linguist may prefer greater precision than this allows.

However, it does contain several galaxies.

However, music spanning several octaves could be played by repeated calls to a machine-language tone generator.

However, the total population of the arctic fox must be in the order of several hundred thousand animals.

However, several bands continued and arrangers provided renowned arrangements.

However, there were several others:

However, as of 2011 adoption of the new terms has been slow and usage has been limited in the marketplace and in the press, with notable exceptions such as Linux operating systems, several textbooks and scientific research papers.

However, the Germans swam across again and some others got over by a bridge a little way up-stream, after which they assailed the barbarians from several sides at once and cut down many of them.

However, several spellings of his surname exist — Thatch, Thach, Thache, Thack, Tack, Thatche and Theach.

However the loss of Culloden, the relative sizes of Orient and Leander and the participation in the action by two of the French frigates and several smaller vessels, as well as the theoretical strength of the French position, leads most historians to the conclusion that the French were marginally more powerful.

However, there will be several terms of the form x < sup > n − 2 </ sup > y < sup > 2 </ sup >, one for each way of choosing exactly two binomials to contribute a y.

However, when a national trade imbalance expands beyond prudence ( generally thought to be several percent of GDP, for several years ), adjustments tend to occur.

However, it is likely that fewer fought in the actual battle on the Italian side: Harold Marcus notes that " several thousand " soldiers were needed in support roles and to guard the lines of communication to the rear.

However, the three leading Italian brigades had become separated during their overnight march and at dawn were spread across several miles of very difficult terrain.

However, there still were several unsolved problems, most notably the description of superconductivity and the Kondo effect.

However, several important phase transitions, such as the Mott insulator-superfluid transition, are known that do not follow the Ginzburg-Landau paradigm.

However, my principal objection in this sort of novel is to the hackneyed treatment of race-drivers, pilots, submariners, atomic researchers, and all the machine-masters of our age as brooding mystics or hysterical fatalists.

However, his conclusions were disproven by later researchers, especially by Ferdinand Sommer.

However, some researchers have disputed the major league status of the Union Association, pointing out that franchises came and went and contending that the St. Louis club, which was deliberately " stacked " by the league's president ( who owned that club ), was the only club that was anywhere close to major league caliber.

However, there is sometimes a lack of understanding by researchers in developed countries about the actual needs of prospective beneficiaries in developing countries.

However, researchers hold contrary opinions regarding the effects of long-term administration.

However, one group of researchers have found that carob seeds in fact have typical variability compared to the seeds of other species.

However, researchers from the Harvard School of Public Health and the Karolinska Institute in Stockholm, Sweden, found no association between the consumption of foods high in acrylamide and increased risk of three forms of cancer: bladder, large bowel and kidney.

However, more recently researchers have brought attention to potential underlying causes of OCBs, including social pressure, coercion, and other external forces.

However, a second 2011 sighting of an Arizona jaguar was reported by a Homeland Security border pilot in June 2011, and conservation researchers sighted two jaguars within 30 miles of the Mexico / U. S. border in 2010.

However, many of these researchers are controversial in their own right, and all of them have also received money from the Pioneer Fund, which had already funded much of Rushton's work when these reviews were written.

However, other researchers of the Loch Ness phenomena have questioned the authenticity of the photograph.

However, many of the ideas, particularly as pertain to inertia ( impetus ) and falling bodies had been developed and stated by earlier researchers, both the then-recent Galileo and the less-known medieval predecessors.

However, there has been considerable controversy over this as later researchers have failed to reproduce the original findings of Rauscher ( e. g. Steele, Bass & Crook, 1999 ), questioned both theory and methodology of the original study ( Fudis & Lembesis 2004 ) and suggested that the enhancing effects of music in experiments have been simply due to an increased level of arousal ( Thompson, Schellenberg & Husain, 2001 ).

However, modafinil also elevates hypothalamic histamine levels, leading some researchers to consider modafinil a " wakefulness promoting agent " rather than a classic amphetamine-like stimulant.

However, researchers have frequently noted that a single left-right axis is insufficient in describing the existing variation in political beliefs, and often include other axes.

However, although Australopithecus robustus and Paranthropus robustus are used interchangeably for the same specimens, some researchers, beginning with Robert Broom, and continuing with people such as Bernard A.

However, Levy's fellow researchers became suspicious about his methods.

However, some personality researchers argue that this list of major traits is not exhaustive.

However, when accretion disc energy-production mechanisms were successfully modeled in the 1970s, the argument that quasars were too luminous became moot and today the cosmological distance of quasars is accepted by almost all researchers.

However, other researchers have criticized and contradicted this claim.

However, there is continued resistance by some researchers over the application of evolutionary models to humans, particularly from within the social sciences, where culture has long been assumed to be the predominant driver of behavior.

However, some researchers consider that NDEs are actually REM intrusions triggered in the brain by traumatic events like cardiac arrest.

However, cyanoacrylates were quickly rejected by the American researchers precisely because they stuck to everything.

However it was not until around 1912 that other researchers, while attempting to improve the service life of the Audion, stumbled on the principle of the true vacuum tube.

However, researchers ' largest interest lies in stress exerted on the vocal folds.