During this precarious period of development the mother should continue to influence the growth of the child's conscience.

During the period from 1 July 1960 through 31 January 1961, additional research affiliations were effected with the U. S. Army Medical Research and Development Command to conduct research in procedures for quantitative electron microscopy, and for the study of biophysical and biological studies of the structure and function of ocular tissue.

During this period, a total of 762 exhibits were presented at 442 medical and scientific meetings.

During the period of this report, 37,470 new cases were entered into the various registries.

During this period, 7,827 teaching sets were distributed on loan.

During the period of this report, 63 panel exhibits depicting the latest developments in medical research were displayed.

During the period, the laboratory rendered centralized macropathological service to qualified requesters.

During the period from 1 July 1960 through 31 January 1961, the Medical Museum was required to move to Temporary Building `` S '' on the Mall from Chase Hall.

During the period of about 4 hours around sunset, skywave transmission conditions are building up until full nighttime conditions prevail ; ;

During the Civil War period Mr. Brown also invented the Brown & Sharpe formed tooth gear cutter, a basic invention which ultimately revolutionized the world's gear manufacturing industry by changing its basic economics.

During this period 7,484,268 members were received, yet the net membership now is only 9,910,741.

During the period of the Iberian Union ( 1580 – 1640 ), Portugal lost influence and power and made new enemies.

During the Romantic period, art came to be seen as " a special faculty of the human mind to be classified with religion and science ".< ref >

During the same period the Georgian states of Colchis and Tabal arose around the Black Sea and central Anatolia respectively.

During this same period, slave-holding border states had more free African-Americans and European immigrants than the lower South, which increased Southern fears that slavery was threatened with rapid extinction in this area.

During this period he published 18 plays and 3 novels, including the murder mystery The Red House Mystery ( 1922 ).

During this period winter sports were slowly introduced: in 1882 the first figure skating championship was held in St. Moritz, and downhill skiing became a trendy sport with English visitors early in the 20th century, as the first ski-lift was installed in 1908 above Grindelwald.

During the post-World War I period ski-lifts were built in Swiss and Austrian towns to accommodate winter visitors, but summer tourism continued to be important ; by the mid-20th century the popularity of downhill skiing increased greatly as it became more accessible and in the 1970s several new villages were built in France devoted almost exclusively to skiing, such a Les Menuires.

During the first 11 months of 2006, net imports grew by 21 percent to $ 1. 95 billion, while exports stood at $ 895 million, up 0. 3 percent from the same period in 2005.

During the first 11 months of 2006, the European Union remained Armenia's largest trading partner, accounting for 34. 4 percent of its $ 2. 85 billion commercial exchange during the 11-month period.

During January – February 2007, Armenia ’ s trade with Russia and other former Soviet republics was $ 205. 6 million ( double the amount from the same period the previous year ), making them the country ’ s number one trading partner.

During this period, spectator attendances dropped and media condemnation increased, but Simpson and Lawry flatly disregarded the public dissatisfaction.

During the Tokugawa period ( 1600 – 1868 ) the Ainu became increasingly involved in trade with Japanese who controlled the southern portion of the island that is now called Hokkaido.

During this period Agamemnon and his brother, Menelaus, took refuge with Tyndareus, King of Sparta.

During the Akkadian period, the Akkadian language became the lingua franca of the Middle East, and was officially used for administration, although the Sumerian language remained as a spoken and literary language.

During the Long March, the communists reorganized under a new leader, Mao Zedong ( Mao Tse-tung ).

During the Sino-Japanese War, Mao advocated a strategy of avoiding open confrontations with the Japanese army and concentrating on guerrilla warfare from his base in Yan ' an, while leaving the KMT to take on the brunt of the fighting and suffer tremendous casualties.

During the invasion, Mao Zedong failed to send as many trained pilots as he promised.

During his meeting with U. S. President Richard Nixon in 1972, Mao hinted that Lin had opposed seeking better relations with the U. S.

During the period immediately following the Long March, Mao and the Chinese Communist Party were headquartered in Yan ' an, which is a prefecture-level city in the Shaanxi province.

During this period, Mao Zedong galvanized students and young workers as his Red Guards to attack what he termed as revisionists in the party.

During the factional struggles that polarized the CCP during the 1930s, Hu supported Mao Zedong and opposed the 28 Bolsheviks.

During 1956 and 1957, the FLN successfully applied hit-and-run tactics in accordance with guerrilla warfare theory, which was at the time being formalized ( in particular by Mao Zedong ) as " people's war ".

During the Mao era, food in prisons was very scarce, partly because of a nationwide famine ( 1959 – 1962 ) but also because of the harsher rules.

During the Cultural Revolution, Deng Xiaoping and his family were targeted by Mao Zedong.

During this time Mao and Zhu became so closely connected that to the local peasant farmers they were known collectively as " Zhu Mao " ( homophonic to 猪毛, or pig's pelage ).

During the Cultural Revolution, Jingdezhen produced a large number of porcelain Mao badges and statues of a seated Mao Zedong.

During 1964 the Lei Feng campaign shifted gradually from doing good deeds to a cult of Mao.

During the Second Plenary Session of the 9th Central Committee, from August – September 1970, Mao became uncomfortable with Lin's growing power, and began to maneuver against Lin by undermining his supporters and attacking some of Lin's suggestions at the conference.

During the Long March, near the end of 1934, Liu was reappointed as Chief of the General Staff of the Red Army and commander of Central Column, which consisted of the majority of the CPC senior leaders, such as Bo, Braun, Zhou and Mao.

During this conference, Liu and most of the attendees showed their support for Mao.

During a dispute between Mao and Zhang over major issues, which led to their later split, Liu maintained his support for Mao.

During the ceremony, Liu stood next to Mao.

During the night of February 17, Mao surrounded them with three battalions of his own and routed them the next day.