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 downtime, Murdoch has initiated the film and music project God Help the Girl, while Jackson and Kildea have toured with the reformed Vaselines.

During his tenure with Metheny Wertico played on ten recordings and four videos, appeared on television and toured around the world.

During July 2006, the band toured Europe.

During a March 2007 interview with the Western Daily Press, Ferry confirmed that although the next Roxy Music album is definitely being made, it would not be vended for another " year and a half ", as Ferry had just released and toured behind his twelfth studio album, Dylanesque, consisting of Bob Dylan covers.

During 1981, Nicks toured with Tom Petty and the Heartbreakers and New Zealand band Split Enz as a guest.

During this period Blazonczyk toured with Buddy Holly, Gene Vincent and Brenda Lee.

During the 1980s he toured the United States extensively and performed a number of high profile television appearances.

During the same year he toured the UK, where he recorded the Revelations video.

During his employment, he travelled to Manchuria, participating in an architectural design competition for a bank, and toured Japanese-occupied Jehol on his return.

During this holiday he toured a number of archaeological sites in the two countries, coming to the opinion that much of what he had written in The Most Ancient Near East was outdated, and so he went on to produce a new book on the subject, New Light on the Most Ancient Near East ( 1935 ), in which he applied his Marxist-influenced ideas about the economy to his conclusions.

During the brief era of that line-up, they toured UK.

During this period, she toured the United States and Canada, and appeared in Yugoslavia and at the Edinburgh Festival.

During May 1964, Perkins toured England along with Chuck Berry.

During the 1970s, Shankar and Harrison worked together again, recording Shankar Family & Friends in 1973 and touring North America the following year to a mixed response after Shankar had toured Europe with the Harrison-sponsored Music Festival from India.

During her heyday in the 1970s and early 1980s, she toured most of Latin America, the USA, Europe and Japan.

During the 1970s the same group of musicians toured and recorded under both the Parliament and Funkadelic names as well as several others, collectively known as Parliament-Funkadelic.

During the late 70's he also toured and recorded often with Larry Norman, Randy Stonehill and Tom Howard.

During the 1930s, Tibbett toured Europe and Australia, performing on stage or giving recitals in London, Paris, Prague and Vienna as well as in Sydney and Melbourne.

During the Cold War, a group of Russian journalists toured the United States.

During 2008 and 2009, Oberst recorded music and toured in support of his other music projects, Conor Oberst and the Mystic Valley Band and supergroup Monsters of Folk.

During that year, Anderson also toured both the USA and England with The Paul Green School of Rock Music.

During September 2008, The Cult did a brief series of dates in the northeast United States, and they toured in Brazil as part of the South American tour in October 2008.

During World War II, Grenfell toured North Africa, Southern Italy, the Middle East and India with her pianist Viola Tunnard performing for British troops.

During the ’ 40s and early ’ 50s, the NFB employed ' travelling projectionists ' who toured the country, bringing films and public discussions to rural communities.

During the fall of 2008, the band toured with Whole Wheat Bread, Madball, Terror, and Death by Stereo, opening select dates.