Several days after the companies had received the questionnaire, members of the research team contacted the presidents of eleven of these companies in person or by phone to discuss any ambiguities or difficulties the addressees might have experienced in completing the questionnaire.

Several of these papers remarked on the difficulty of obtaining good, clean digital audio for research purposes.

Several other TCP / IP prototypes were developed at multiple research centers between 1978 and 1983.

Several perspectives or branches of such academic dictionary research have been distinguished: ' dictionary criticism ' ( or evaluating the quality of one or more dictionaries, e. g. by means of reviews ( see Nielsen 2009 )), ' dictionary history ' ( or tracing the traditions of a type of dictionary or of lexicography in a particular country or language ), ' dictionary typology ' ( or classifying the various genres of reference works, such as dictionary versus encyclopedia, monolingual versus bilingual dictionary, general versus technical or pedagogical dictionary ), ' dictionary structure ' ( or formatting the various ways in which the information is presented in a dictionary ), ' dictionary use ' ( or observing the reference acts and skills of dictionary users ), and ' dictionary IT ' ( or applying computer aids to the process of dictionary compilation ).

Several major computer-related organizations have originated at MIT since the 1980s: Richard Stallman's GNU Project and the subsequent Free Software Foundation were founded in the mid-1980s at the AI Lab ; the MIT Media Lab was founded in 1985 by Nicholas Negroponte and Jerome Wiesner to promote research into novel uses of computer technology ; the World Wide Web Consortium standards organization was founded at the Laboratory for Computer Science in 1994 by Tim Berners-Lee ; the OpenCourseWare project has made course materials for over 2, 000 MIT classes available online free of charge since 2002 ; and the One Laptop per Child initiative to expand computer education and connectivity to children worldwide was launched in 2005.

The first synthesis by Marshall D. Gates, Jr. in 1952 is considered a classic in the field .. Several other syntheses were reported, notably by the research groups of Rice, Evans, Fuchs, Parker, Overman, Mulzer-Trauner, White, Taber, Trost, Fukuyama, Guillou and Stork.

Several historical anthropologists have done field research Nevis and in Nevisian migrant communities in order to trace the creation and constitution of a Nevisian cultural community.

Several private institutions, including the Institute of Noetic Sciences, conduct and promote parapsychological research.

Several sealed and stamped letters are planted in public places, addressed to various entities, such as individuals, favorable organizations like medical research institutes, and stigmatized organizations such as " Friends of the Nazi Party ".

Several have purchased property and maintain ongoing collections of SF literature available for research, as in the case of the Los Angeles Science Fantasy Society, the New England Science Fiction Association, and the Baltimore Science Fiction Society.

Several research spacecraft have been designed and partially or completely constructed, including Skylon, the DC-X, the X-33, and the Roton SSTO.

Several organizations established in Iran since the late 1990s offer a unique blend of interdisciplinary research.

Several were set up by the Philippine government for the specific purpose of providing research input into the policy-making process.

Several early German and French scholars compiled old works and conducted new research on birds.

Several menhaden research projects, currently unpublished.

Several medieval scholars were considered to be magicians in popular legend, notably Gerbert d ' Aurillac and Albertus Magnus: both men were active in the scientific research of their day as well as in ecclesiastical matters, which was enough to attach to them a nimbus of the occult.

Several species of ascomycetes are biological model organisms in laboratory research.

Several research institutions are located in the province, such as the SCK • CEN, the European Institute for Reference Materials and Measurements ( IRMM ) and the Flemish Institute for Technological Research ( VITO ).

Several of the networks are linked to international research programs ; all involved multiple partners.

Several just-in-time compilation ( JIT ) techniques were pioneered and improved in Self research as they were required to allow a very high level object oriented language to perform at up to half the speed of optimized C. Much of the development of Self took place at Sun Microsystems, and the techniques they developed were later deployed for Java's HotSpot virtual machine.

Several research groups have independently developed simulation software that agrees well with experimental findings in a wide range of engineering applications, including adhesive powders, granular flow, and jointed rock masses.

Several vaccine candidates are currently in various phases of research and development, including a number of ongoing clinical trials.

Several bilateral agreements provide a solid framework for cooperation in areas such as healthcare, defence, and technological research & development.

Several colleges and research institutions which are situated in Bourg-en-Bresse and Bellignat have settled in the department of Ain.

Several health research institutes, including the Heritage Medical Research Centre, Medical Sciences Building, Katz Group Centre for Pharmacy and Health Research, and Li Ka Shing Centre for Health Research Innovation, are also located at this site.

Several studies have shown an increased rate of cancer mortality for workers exposed to 2, 4, 5-T.

Several studies have tried to reconstruct the phylogeny of the genus.

Several studies published since 1990 indicate that cooking meat at high temperature creates heterocyclic amines ( HCAs ), which are thought to increase cancer risk in humans.

Several brain imaging techniques, such as EEG and fMRI, have been used for physical measures of brain activity in these studies.

Several in vitro studies indicated that high concentrations of chromium ( III ) in the cell can lead to DNA damage.

Several in-depth studies of salamander genera in fossil beds in Montana show that six of seven genera were unchanged after the event.

Several of these follow-up studies, which involved viewing in group settings, reported some limited success.

Several studies have specifically addressed Duesberg's claim that recreational drug abuse or sexual promiscuity were responsible for the manifestations of AIDS.

Several clinical and experimental data have implicated the failure of blood – brain barrier ( BBB ) function in triggering chronic or acute seizures, some studies implicate the interactions between a common blood protein — albumin and astrocytes.

Several other studies have also found lasting cognitive gains.

Several demographic studies, including those by social work researcher Athena Kolbe have shed light on the current status of urban residents.

Several studies have suggested that hedge funds are sufficiently diversifying to merit inclusion in investor portfolios, but this is disputed for example by Mark Kritzman who performed a mean-variance optimization calculation on an opportunity set that consisted of a stock index fund, a bond index fund, and ten hypothetical hedge funds.

Several studies have discovered that subjects who received no jury instructions comprehended the law better than subjects who received pattern instructions.

Several researchers include the island of Cyprus in Levantine studies, including the Council for British Research in the Levant, the UCLA Near Eastern Languages and Cultures department, and the UCL Institute of Archaeology, the last of which has dated the connection between Cyprus and mainland Levant to the early Iron Age.

Several clinical studies have shown that combined ECPs containing ethinyl estradiol and levonorgestrel can inhibit or delay ovulation .< sup > 107 – 110 </ sup ></ ref >

Several regression studies with David Meiselman during the 1960s suggested the primacy of the money supply over investment and government spending in determining consumption and output.

Several studies place the nucleariids as a sister group to the fungi.

Several epidemiological studies from different countries have reported widely varying prevalence rates for chronic pain, ranging from 12-80 % of the population.

Several detailed studies using various methods to measure growth curves among known specimens have demonstrated that there is actually only one valid Pterodactylus species, P. antiquus.

Several studies ( Alfredo Torero or Rodolfo Cerrón Palomino ) show that the oldest form of Quechua appeared in Cajamarquilla, Lima.

Several police organizations condemned this study and suggested more studies like this would make them hesitant to pull over visible minorities.

Several sources claim that during his studies he was more interested in religion than joining the military.

Several neuroimaging studies have emerged in order to identify areas associated with stuttering.

Several studies show that between 50 % and 73 % of women who have used this type of condoms during intercourse find them as or more comfortable than male condoms.

Several official design studies were done, but most were basically smaller versions of the existing Shuttle concept.