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 his time in Vienna, Salieri acquired great prestige as a composer and conductor, particularly of opera, but also of chamber and sacred music.

During the Japanese occupation, the Dayaks played a role in guerilla warfare against the occupying forces, particularly in the Kapit Division, where headhunting was temporarily revived towards the end of the war.

During the early 1990s, the Compact Disc surpassed the gramophone record in popularity, but gramophone records continued to be made ( although in very limited quantities ) into the 21st century — particularly for club DJs and for local acts recording on small regional labels.

During the 1992 U. S. presidential election campaign, the civil rights of gays and lesbians, particularly their open service in the military, attracted some press attention, and all candidates for the Democratic presidential nomination supported ending the ban on military service by gays and lesbians,

During the 1960s and 1970s hundreds of fossils were found, particularly in East Africa in the regions of the Olduvai gorge and Lake Turkana.

During the late 19th and 20th century there was significant emigration, particularly from rural areas to Sweden and North America, while most immigrants into Finland itself come from other European countries.

During that time, insurrections against the Malagasy Christians of the island, missionaries and foreigners were particularly terrible.

During his time in Malaya, Gardner became increasingly interested in local customs, particularly those involved in folk magic and weapons.

During the period of 8500-7500 BC another hunter-gatherer group, showing clear affinities with the cultures of Egypt ( particularly the Outacha retouch technique for working stone ) was in Sinai.

During the 1970s and ‘ 80s rural poverty did decline, particularly in the Malayan Peninsula, but critics of the government ’ s policy contend that this was mainly due to the growth of overall national prosperity ( due in large part to the discovery of important oil and gas reserves ) and migration of rural people to the cities rather than to state intervention.

During periods of particularly high demand for ammunition, such as after the November 2008 election of President Barack Obama, or after the 1994 Assault Weapons Ban in that country, factory ammunition can become considerably more expensive or even unavailable in stores.

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 subsequent Swedish reign over Finland particularly the coastal areas witnessed waves of settlement from Sweden.

Many Irish servicemen, particularly sailors, settled in Britain: During the 18th and 19th century a third of the Army and Royal Navy were Irish.

During the 20th century, certain Irish intellectuals made their homes in continental Europe, particularly James Joyce, and later Samuel Beckett ( who became a courier for the French Resistance ).

During the Iron Age, the best tools and weapons were made from steel, particularly alloys which were produced with a carbon content between approximately 0. 30 % and 1. 2 % by weight.

During his stay at Hangzhou he was particularly impressed by the large number of well-crafted and well-painted Chinese wooden ships, with colored sails and silk awnings, assembling in the canals.

During his stay in Vienna in 1862 – 63, Brahms became particularly interested in the music of Franz Schubert.

During this time, he began to attack fellow members of the Georgian Communist Party, particularly Gaioz Devdariani, who was Minister of Education of the Georgian SSR.

During the last decades of the 20th century, particularly in the post-genomic era, many techniques for fluorescent labeling of cellular structures were developed.

During all this time he traveled extensively in Japan, particularly in the Kansai region teaching his aikido.

During his lifetime, Nichiren stridently maintained that the contemporary teachings of Buddhism taught by other sects, ( particularly Nembutsu, Zen, Shingon, and Ritsu ) were mistaken in their interpretations of the correct path to enlightenment, and therefore refuted them publicly and vociferously.

During the 19th century, parallel operatic traditions emerged in central and eastern Europe, particularly in Russia and Bohemia.

During this time of invention, winds and brass were expanded, and had an increasingly easy time playing in tune with each other: particularly the ability for composers to score for large masses of wind and brass that previously had been impractical.

During the 19th century, American musicians playing for working-class audiences in small pubs and bars, particularly African-American composers, developed new musical genres based on the modern piano.