Since nearly all known chemistry requires a solvent, Smalley felt that Drexler's proposal to use a high vacuum environment was not feasible.

Since the boiling point of a solvent is the temperature at which the vapor pressure of the solvent is equal to the ambient pressure, reducing pressure in the tower has the effect of lowering the boiling point of the solvent.

Since vibrational energy is generally much greater than the thermal agitation, it is rapidly dispersed into the solvent through solvent molecules ' rotation and translation.

Since GISP2 ( 1990 – 1993 ) the US Polar Program has utilized a single-component fluid system, n-butyl acetate, but the toxicology, flammability, aggressive solvent nature, and longterm liabilities of n-butyl acetate raises serious questions about its continued application.

Since most Grignard reactions are conducted in anhydrous diethyl ether or tetrahydrofuran, side-reactions with air are limited by the protective blanket provided by solvent vapors.

Since the solvent has less opportunities to evaporate there are less evaporated or vaporized solvent particles, thus a decreased vapor pressure.

Since by-products from gas manufacturing had strong markets of their own, new equipment was installed at the same time to produce “ Gasco charcoal briquets ”, toluene, solvent naphtha, sulfur, xylene, and resin tar.

Since secondary structure in peptoids does not involve hydrogen bonding, it is not typically denatured by solvent, temperature, or chemical denaturants such as urea ( see details below ).

Since the transition to a democratic government in 1990, Benin has undergone an economic recovery.

Since the 1970s, the introduction of a recovery approach to mental health, which has been driven mainly by people who have experienced psychosis ( or whatever name is used to describe their experiences ), has led to a greater awareness that mental illness is not a lifelong disability, and that there is an expectation that recovery is possible, and probable with effective support.

Since only one foot is on the ground at a time in running, one leg is always in recovery, while the other goes through support and drive.

Since then, the experimental population has grown and the recovery area expanded to include four national wildlife refuges, a Department of Defense bombing range, state-owned lands, and private lands, encompassing about.

Since all that is required for a full recovery is the resumption of normal vitamin C intake, it is easy to treat if identified correctly.

Since the plover recovery program began at the aquarium in 2000, aviculturists have banded and released 58 snowy plovers of all ages.

Since June 2006, Camp Hope has been housing volunteers ' assisting residents of St. Bernard Parish in their recovery from Hurricane Katrina.

Since 1981, Wrightsville has been home to the Arkansas Department of Correction Wrightsville Unit, which focuses on educational and rehabilitative services, aiding in workforce preparation, substance abuse recovery, and other aspects of re-entry into society for as many as 850 male and female inmates.

Since the supply roll is plastic, the lifespan of a used roll can be years or decades long, permitting image recovery long after disposal.

Since NetBIOS is handling the error recovery, NACK packets will prompt retransmission of the data packet.

Since each message is sent independently, they must be smaller ; the application becomes responsible for error detection and recovery.

Since taking over the reins, Guild Companion Publications Ltd ( GCP ) has been involved in a comprehensive rebranding and recovery process of products from three decades of ICE publication, including some that have never before been available commercially as pdfs.

Since Hurricane Katrina, Goodman has appeared on several recovery commercials aired in Louisiana.

Since the end of the 19th century, Ustka has been recognised as a summer holiday resort and various illnesses treatment and recovery centre.

Since 1996, the Netherlands-based Museum Security Network has disseminated news and information related to issues of cultural property loss and recovery.

Since 2002, international funding has supported recovery and stabilization efforts at the site.

Since the recovery, many jewelry and tourism-businesses have attempted to create pendants, bracelets, and rings out of both genuine and replica coins from the Atocha wreck.

Since most of the treatments concentrate on speeding healing and recovery, the largest current use is for professional athletes.

Since then, JDC relief and recovery efforts have assisted tens of thousands of people left vulnerable in the wake of the mid-90s civil war in Rwanda, the Kosovo refugee crisis, the devastating 1999 earthquake in Turkey, and the 2004 tsunami in South Asia.

Since 20 December 2004, the further discount of 20 % was cancelled due to the quick recovery of the economy and a ridership increase to 170, 000 per day.

Since perfectionism is a self-esteem issue based on emotional convictions about what one must do to be acceptable as a person, negative thinking is most successfully addressed in the context of a recovery process which directly addresses these emotional convictions.

Since OnStar can help with the recovery of a stolen vehicle, some insurance companies recognize this and offer a discount.

Since neurapraxia is the least serious form of peripheral nerve injury, recovery and treatment are not extensive.

Since the Supreme Court's decision of that year this is more doubtful ; ;

( Since the time-span of the nation-state coincides roughly with the separate existence of the United States as an independent entity, it is perhaps natural for Americans to think of the nation as representative of the highest form of order, something permanent and unchanging.

Since it is not far from Viareggio, he will visit Puccini's house, as he never fails to do, to pay his respects to the memory of the composer of La Boheme, which he considers one of Puccini's masterpieces.

Since attack serves to stimulate interest in broadcasts, I added to my opening statement a sentence in which I claimed that German youth seemed to lack the enthusiasm which is a necessary ingredient of anger, and might be classified as uninterested and bored rather than angry.

Since the air is a continuum, the network of communication remains intact regardless of the positions or motions of the points ( the people ) in the net.

Since the hazards of poor communication are so great, p can be justified as a habitable site only on the basis of unusual productivity such as is made available by a waterfall for milling purposes, a mine, or a sugar maple camp.

Since the difficulty of drawing the net is great, we will merely discuss it.

Since a civilizational crisis involves also a crisis in private interests and in the ruling class, reaction is normally found among those who feel themselves to be among the ruling class.

Since civilizational change is the most difficult to perceive and analyze, it seldom is given adequate attention.

Since the slogans have little application to reality and are sanctimonious to boot, the applause is faint even in areas of the world where we should expect to find the greatest affection for free government.

Since more is known about Quiney than about any other acquaintance of Shakespeare in Stratford, his career may be followed to its sudden end in 1602.

Since the great flood of these dystopias has appeared only in the last twelve years, it seems fairly reasonable to assume that the chief impetus was the 1949 publication of Nineteen Eighty-Four, an assumption which is supported by the frequent echoes of such details as Room 101, along with education by conditioning from Brave New World, a book to which science-fiction writers may well have returned with new interest after reading the more powerful Orwell dystopia.

Since Laos is of no more purely military value to Moscow itself than it is to Washington, this approach might be expected to head off Mr. Khrushchev for the moment.

Since little is known about autism, and almost nothing has been written for the layman, we'd like to share one experienced mother's comments.

Since the work is done by hand, the only limitation, it is said, `` is that of human conception ''.

Since the apparatus is new, it requires experimentation and changes in technique.

Since the obvious is not always true, the Republican National Committee wisely analyzed its defeat of last autumn and finds that it occurred, as suspected, in the larger cities.

Since he has just shown who is top dog, he may not be ready to receive this highest honor in the gift of the Soviet people.

Since appeals to morality, to humanity, and to sanity have had such small effect, perhaps our last recourse is the deterrent example.

Since the goal of our international planners is a World Government, this Atlantic Community would mark a giant step in that direction for, once American economic autonomy is absorbed, a larger grouping is a question of time.