During the transition from last glacial to holocene, the Huelmo / Mascardi Cold Reversal in the Southern Hemisphere began before the Younger Dryas, and the maximum warmth flowed south to north from 11, 000 to 7, 000 years ago.

During the gradual process by which Homo erectus made a transition from furry to naked skin, their hair texture putatively changed gradually from Afro-textured hair or ' kinky ' ( i. e. tightly coiled ) to straight hair ( the condition of most mammals, including humanity's closest cousins — chimpanzees ) This argument is based on the principle that curly hair impedes the passage of UV light into the body relative to straight hair ( thus curly or coiled hair would be particularly advantageous for dark-skinned hominids living at the equator ).

During the late 1940s and into the 1950s, a production unit at Metro-Goldwyn-Mayer headed by Arthur Freed made the transition from old-fashioned musical films, whose formula had become repetitive, to something new.

During this transition period, which gradually eased the performance of more demanding " natural " brass writing, many composers ( notably Wagner and Berlioz ) still notated brass parts for the older " natural " instruments.

During the programming of a sequence, the user can determine whether a note should be accented, and whether it should employ portamento, a smooth transition to the following note.

During an effort to delay immediate transition to indigenous African rule, Rhodesia's white residents of European descent issued their government ’ s own Unilateral Declaration of Independence from the United Kingdom on 11 November 1965.

During South Africa's transition to democracy, she adopted a far less conciliatory and compromising attitude than her husband toward the dominant white community. This made her unpopular with the white apartheid interest groups, not surprisingly.

During a difficult period of transition, he did much to improve the working relationship between the races.

During this period a new mass movement toward secondary education paved the way for a transition to mass higher education.

During George's reign, the powers of the monarchy diminished and Britain began a transition to the modern system of cabinet government led by a prime minister.

During the transition the input transistor is briefly in its active region ; so it draws a large current away from the base of the output transistor and thus quickly discharges its base.

During the menopause transition years, as the body responds to the rapidly fluctuating and dropping levels of natural hormones, a number of effects may appear.

During a phase transition of a given medium certain properties of the medium change, often discontinuously, as a result of some external condition, such as temperature, pressure, and others.

During such a transition, a system either absorbs or releases a fixed ( and typically large ) amount of energy.

During this process, the temperature of the system will stay constant as heat is added: the system is in a " mixed-phase regime " in which some parts of the system have completed the transition and others have not.

During the inauguration of President Barack Obama on January 20, 2009, the Bush and Obama transition teams agreed to name Secretary of Defense Robert Gates as the " designated survivor " and he was taken to a secure location instead of attending the ceremony.

During the transition to full secularization, Father José González Rubio remained at the Mission as chief administrator for the church, while José de Jesús Vallejo ( brother of General Mariano G. Vallejo ) was appointed civil administrator.

During the same time frame a transition to perpendicular magnetic recording is occurring ( PMR ), in which for reasons of improved stability and higher areal density potential, the traditional in-plane orientation of magnetization in the disk is being changed to a perpendicular orientation.

During the transition period before Nixon assumed power, Kissinger recommended that the NSC be buttressed by a structure of subcommittees to draft analyses of policy that would present clear decision options to the President.

During the Spanish transition to democracy, the Church of St. Francis of Assisi was the scene of the March 3 Killing of 1976 after clashes between police and striking workers.

During this period, Coyne made his transition to a higher, more strained vocal style akin to Neil Young, which he first used on Telepathic Surgery's " Chrome Plated Suicide " and has employed ever since.

During the transition to the Neolithic age, agriculture and cattle breeding became the core activities of a growing number of human communities.

During the eighteenth century they made the transition to a horse culture and used firearms to a limited extent.

During the transition from basalt to eclogite, these hydrous materials break down, producing copious quantities of water, which at such great pressure and temperature exists as a supercritical fluid.

During this shift, enduring questions about the nature and production of knowledge came to occupy a central place in cultural and social anthropology.

During the show's popular, although short-lived production, Bixby as always, invited a few old friends along to co-star such as Pamela Britton ( in her final role ), Kristina Holland and Ralph O ' Hara.

During production of the film Chaplin had been involved with the actress Pola Negri, a romantic pairing that received vast media interest.

During the depression years, rhinestones were even down-graded by some manufacturers to meet the cost of production.

During the early phases of the Big Bang, nucleosynthesis of hydrogen nuclei resulted in the production of hydrogen-1 ( protonium, < sup > 1 </ sup > H ) and helium-4 (< sup > 4 </ sup > He ), as well as a smaller amount of deuterium (< sup > 2 </ sup > H ) and very minuscule amounts ( on the order of 10 < sup >− 10 </ sup >) of lithium and beryllium.

During the late 19th century European and American companies introduced railways to carry to the ports the local production of raw materials intended for exports and also imports from Europe.

During the baking process of the green blocks as a part of commercial graphite production, most of the coal tar binders are vaporised and are generally burned in an incinerator to prevent release into the atmosphere, as COV and coal tar can be injurious to health.

During the 1950s, Kaye visited Australia, where he played " Buttons " in a production of Cinderella in Sydney.

During the production, specially shot footage portrayed Dalek atrocities.

During production, Executive Producers may be involved in some aspects of scripting, casting, and crewing.

During the 1990s, FAO took a leading role in the promotion of integrated pest management for rice production in Asia.

During the Information Age ( circa 1971 – 1991 ), the Knowledge Age ( circa 1991 to 2002 ), and the Intangible Economy ( 2002 – present ) many see the primary factors of production as having become less concrete.

During this time period Hawks first met Irving Thalberg, the frail and sickly vice-President in charge of production at Metro-Goldwyn-Mayer.

During the summer of 1992, a decision was made to end first-run production, and instead air highlights of the show's earlier years in a revamped program called Hee Haw Silver ( as part of celebrating the show's 25th year ).

During its production run, the Torana achieved legendary racing success in Australia, achieving victories at the Mount Panorama Circuit in Bathurst, New South Wales.

During World War II, the War Department allotted a rationed supply of brass to Kratt's factory to continue production of their harmonicas to be passed out by the Red Cross among the GI's serving overseas to boost morale.

During 1995, production of the M1114 based on the improved ECV chassis began.

During the period 1790-1815 Sweden experienced two parallel economic movements: an agricultural revolution with larger agricultural estates, new crops and farming tools and a commercialisation of farming, and a protoindustrialisation, with small industries being established in the countryside and with workers switching between agricultural work in the summer season and industrial production in the winter season.

During production Lewis developed the technique of using video cameras and multiple closed circuit monitors, which allowed him to review his performance instantly.

During World War II, he took on major domestic responsibilities and mobilized the millions of people imprisoned in NKVD Gulag camps into wartime production.

During gametogenesis — the production of new gametes by an adult — the normal complement of 46 chromosomes needs to be halved to 23 to ensure that the resulting haploid gamete can join with another gamete to produce a diploid organism.

During film production, these can take place on set.