Ep h em er is T im e ET 1 19 67 : c o rr ec ti o n s to th e ET 0 m o d el Ep h em er is T im e ET 2 19 72 : c o rr ec ti o n s to th e ET 1 m o d el ‘1 s ec o n d ’ • 1 / 8 6, 40 0 o f a m ea n s o la r d ay . • 1 / 3 1, 56 6, 92 5. 97 47 o f t h e tr o p ic al y ea r fo r 19 00 (E p h em er is T im e as d efi n ed in 1 95 5) . • 9, 19 2, 63 1, 77 0 p er io d s o f t h e ra d ia ti o n c o rr ...

The history of the investigation has gone through changes as new questions have raised inside the historical conception, until arriving to a progressive development of this. It was in the 16 th and 19 th centuries that the Scientific Revolution took place, which represents a stage of great discoveries. This event guided in a large scale to the vision of the world that is possessed now. Francis ...

Synopsis This article argues that first semester calculus courses for non-mathematics majors should be taught using infinitesimals. This applies to both high school and undergraduate calculus courses. The use of infinitesimals in calculus, though more intuitive than the approach developed in the 19 th century, has been controversial for over two millennia. However, in the 20 th century their us...

The collapse of Atlantic salmon (Salmo salar) stocks throughout North-Western Europe is generally ascribed to large-scale river regulation, water pollution and over-fishing in the 19(th) and 20(th) century. However, other causes have rarely been quantified, especially those acting before the 19(th) century. By analysing historical fishery, market and tax statistics, independently confirmed by a...

Rates of global and regional sea-level rise between ~1850 1950 were high compared to those in preceding centuries. The cause this acceleration remains uncertain, but it appears be pronounced a small set relative proxy records from the Southern Hemisphere. Here we generate three new proxy-based reconstructions for southeastern Australia investigate spatial patterns causes historical changes Tasm...

OBJECTIVE Does the addition of 600 mg rifampicin or 50 mg methotrexate improve pain relief after injection of the rheumatoid knee with 20 mg triamcinolone hexacetonide (TH)? METHODS Eighty-two patients on stable therapy were allocated at random to receive intra-articular TH alone, TH and methotrexate (TH+M) or TH and rifampicin (TH+R). Pain was recorded by a weekly chart and analysed using th...

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Review of the literature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 In...