Many researchers believe the extinction was more gradual, resulting from the sea level and climate changes already occurring during the late Cretaceous, and aggravated by impact events or increased volcanic activity.

Many researchers are interested in the interaction between personal characteristics, the individual's behavior, and environmental factors including social context, and their impact on development ; others take a more narrowly-focused approach.

Many researchers combine qualitative and quantitative forms of analysis to better answer questions which cannot be studied in laboratory settings, particularly in the social sciences and in education.

Many social researchers have investigated flaming, coming up with several different theories about the phenomenon.

Many security researchers cite vendors ' past failure to respond to vulnerability reports as the reason that they fully disclose vulnerabilities.

Many British researchers dismissed Lord May's pronouncements, and the British journal Chemistry & Industry in particular printed an article rebutting his arguments.

Many researchers, including the " father of OCB research ," Dennis Organ have consistently portrayed OCBs as voluntary behaviors done at the discretion of the individual.

Many researchers, including David Unwin, have found P. longicollum to be distinct from P. kochi and P. antiquus.

Many researchers consider there to be at least two species of Pteranodon.

Many researchers view the detection of the graviton as vital to validating their work.

Many researchers have recognized these kinds of supply network structures as a new organization form, using terms such as " Keiretsu ", " Extended Enterprise ", " Virtual Corporation ", " Global Production Network ", and " Next Generation Manufacturing System ".

Many early researchers, both before and after the periodic table was published, were eager to be the first to discover and name the missing element ; its location in the table suggested that it should be easier to find than other undiscovered elements.

Many researchers contend that one of the biggest reasons for cohabitation is that couples no longer believe in marriage.

Many transgender people and researchers support the declassification of GID as a mental disorder for several reasons.

Many researchers hold this to be caused by the spread of such tales, as people repeat tales they have heard in foreign lands, although the oral nature makes it impossible to trace the route except by inference.

Many Prussian documents and original manuscripts have since been discovered in Kraków, leading music researchers to hope that some of Bodeck's works might resurface.

" Many researchers have shown that having some prior knowledge about the topic of a passage enables both greater comprehension of the text and better memory for it.

Many researchers advance the belief that oxidative modification of LDL-cholesterol ( sometimes called " bad " cholesterol ) promotes blockages in coronary arteries that may lead to atherosclerosis and heart attacks.

Many researchers focus on the brain to explain aggression.

Facsimile of the first page of Antony and Cleopatra from the First Folio, published in 1623. Many scholars believe it was written in 1606 – 07, although some researchers argue for an earlier dating, around 1603 – 04.

Many writers or researchers who question conventional views of human history have used purported OOPArts in attempts to bolster their arguments.

D. Many researchers studied the phenomenon of matriarchy afterward, but the basis was laid by the classics of sociology.

Many researchers believe the Electra ran out of fuel and Earhart and Noonan ditched at sea.

Many of the hospital's health professionals and researchers teach in the Faculties of Medicine and Health Sciences.

Many of them have drifted into the cities and towns and seaports.

Many years later I went to see S.K. in England, where he was living at Whiteleaf, near Aylesbury, and he showed me beside his cottage there the remains of the road on which Boadicea is supposed to have travelled.

Many readers of this department no doubt discount certain of my opinions for the simple reason that they can guess pretty accurately, even if they have never actually been told, what my age is.

Many styles have perforations and an almost weightlessness achieved via unlined leathers.

Many such loans have been made to establish small concerns or to aid in their growth, thereby contributing substantially to community development programs.

Many mills have already placed firm orders for this machine.

Many states have laws regulating the use of boat trailers and some have restrictions regarding the age of motor boat operators.

Many companies have upgraded their sales manpower and tested new selling, distribution, and promotion techniques to gain a bigger competitive edge.

Many companies have systems, particularly in R & D, which work more or less well, depending upon size and actual belief in the policy on the part of administration, as will be abundantly apparent in subsequent quotations.

Many of the men on our campus have a pretty set curriculum, especially in the various engineering fields, with few electives till the senior year.

Many of the suggested systems seem to have only the most tenuous relationship to the language structures that they purport to represent.

Many rate increases already have been put into effect.

Many years have passed since a Metropolitan audience heard anything comparable.

Many studies have observed the effects of volunteerism ( as a form of altruism ) on happiness and health and have consistently found a strong connection between volunteerism and current and future health and well-being.

Many of them also have infixes.

Many aquatic salamanders and all tadpoles have gills in their larval stage, with some ( such as the axolotl ) retaining gills as aquatic adults.

Many songs have used this term, including the American patriotic songs " America, The Beautiful " and " God Bless the USA ".

Many amateurs are beginners or hobbyists, while others have a high degree of experience in astronomy and often assist and work alongside professional astronomers.

Many definitions of art have been proposed by philosophers and others who have characterized art in terms of mimesis, expression, communication of emotion, or other values.

Many of the recent TV Games series of old Atari games have included either the 2600 or arcade versions of Asteroids.

Many species in the iris family have a great economic importance in ornamental horticulture and the cut flower industry, especially Gladiolus, Freesia, Sparaxis, Iris, Tigridia ( tiger lily ), Ixia ( corn lily ), Romulea, Neomarica, Moraea ( butterfly lily ), Nemastylis, Belamcanda, Sisyrinchium ( blue-eyed grass ), Crocosmia and Trimezia.

Many species have an erect woody stem which is covered with persistent dried leaves unless there have been fires, topped by a crown of long thin leaves.