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 second russification period, at the start of the First World War, the Dowager Empress, travelling by her special train through Finland to Saint Petersburg, expressed her continued disapprobation for the russification of Finland by having an orchestra of a welcoming committee to play the March of the Pori Regiment and the Finnish national anthem " Maamme ", which at the time were under the explicit ban from Franz Albert Seyn, the Governor-General of Finland.

During the Baroque and Classical periods, recitative could appear in two basic forms: secco ( dry ) recitative, accompanied only by continuo, which was usually a harpsichord and a cello ; or accompagnato ( also known as strumentato ) in which the orchestra provided accompaniment.

During composers Beethoven and Felix Mendelssohn's time, the orchestra was composed of a fairly standard core of instruments which was very rarely modified.

During the time that Bruckner began work on this symphony, he was aware that Wagner's death was imminent, and so the Adagio is slow mournful music for Wagner ( the climax of the movement comes at rehearsal letter W ), and for the first time in Bruckner's oeuvre, Wagner tubas are included in the orchestra.

During the 1920s, he performed with the Luke Witkowski, Lincoln Boulds, and George T. Kelly bands before starting his own orchestra.

During this period Offenbach had to " equip the theatre, recruit actors, orchestra and staff, find authors to write material for the opening programme – and compose the music.

During his boyhood Strauss attended orchestra rehearsals of the Munich Court Orchestra, and he also received private instruction in music theory and orchestration from an assistant conductor there.

During the California period he also played in the Coconut Grove orchestra of Sammy Davis, Jr. and the TV orchestra of Carol Burnett.

During the post-unification period, the orchestra encountered financial problems resulting from budgetary stress in the city of Berlin.

During the Second World War, Boult strove to maintain standards, but the senior management of the post-war BBC denied the orchestra the resources to meet competition from new and well-funded orchestras.

During the 1930s, the orchestra became renowned for its high standard of playing and for performing new and unfamiliar music.

During the 1930s the orchestra presented rarely-heard large-scale works from the past, including Berlioz's Grande Messe des morts and Grande symphonie funèbre et triomphale.

During 1940 and 1941 Bristol suffered devastation from German air-raids, and the BBC decided to move the orchestra again.

During the summer months, the orchestra presents their annual Blossom Festival at the Blossom Music Center in Cuyahoga Falls, Ohio.

During this time Toscanini continued to lead the orchestra in a series of public benefit concerts for war relief.

During the 1930s, he was the orchestra leader on several radio programs, including Fred Allen's show and his own The Ferde Grofé Show.

During this concert Toscanini suffered a memory lapse reportedly caused by a transient ischemic attack, although some have attributed the lapse to having been secretly informed that NBC intended to end the broadcasts and disband the NBC orchestra.

During the coda, the rest of band, backed by an orchestra that also provides backing vocals, repeat the phrase " Na-na-na na " followed by the words " Hey Jude " until the song gradually fades out.

During the following year, the orchestra performed its first symphonies, Haydn's No. 99 and Beethoven's 1st.

During this time the orchestra and choir flourished.

During this period the orchestra was conducted by a series of guest conductors, who included Furtwängler, George Szell, Pierre Monteux, Koussevitzky, and Bruno Walter.

During the following year, while on tour, the orchestra was the first non-Czech orchestra to perform the opening concert in the Prague Spring Festival.

During the 1970s, Roach formed a musical organization —" M ' Boom "— a percussion orchestra.