������� ��������� �������� ������ ��������� (������-��������) �� ������������� ���� ����� ��������� (����� 1917 � 1918 ��.)

1917 avian influenza virus sequences suggest that the 1918 pandemic virus did not acquire its hemagglutinin directly from birds.

Wild waterfowl captured between 1915 and 1919 were tested for influenza A virus RNA. One bird, captured in 1917, was infected with a virus of the same hemagglutinin (HA) subtype as that of the 1918 pandemic virus. The 1917 HA is more closely related to that of modern avian viruses than it is to that of the pandemic virus, suggesting (i) that there was little drift in avian sequences over the pa...

Sphagnum moss in World War I: the making of surgical dressings by volunteers in Toronto, Canada, 1917-1918.

In World War I, the shortage and cost of cotton and the unexpected need for an immense supply of surgical dressings made it necessary for Britain to experiment with a number of materials as a replacement. Though many previously used fibres and materials were tried, sphagnum moss, which had been judged beneficial in 1881 by G. Neuber, a German surgeon, and which had been adopted by the French Wa...

Hilbert's programs: 1917--1922

Hilbert's finitist program was not created at the beginning of the twenties solely to counteract Brouwer's intuitionism, but rather emerged out of broad philosophical reflections on the foundations of mathematics and out of detailed logical work; that is evident from notes of lecture courses that were given by Hilbert and prepared in collaboration with Bernays during the period from 1917 to 192...

Hilbert's Programs: 1917-1922

Hilbert’s finitist programwasnot created at the beginningof the twenties solely to counteract Brouwer’s intuitionism, but rather emerged out of broad philosophical reflections on the foundations of mathematics and out of detailed logical work; that is evident from notes of lecture courses that were given by Hilbert and prepared in collaboration with Bernays during the period from 1917 to 1922. ...

Francis W. Peabody, 1917