M26 Pershing - Armor Walk Around Color Series No. 6 by David Doyle

By David Doyle

By means of early 1942, it used to be obvious that the Sherman tank was once no fit for its German adversaries. American conflict doctrine of the time used to be that US tanks weren't to struggle opposing tanks, leaving this to tank destroyer devices; notwithstanding, the German forces refused to stick to this plan. a few diverse types utilizing quite a few chassis, turret, and gun mixtures have been validated, best as much as the T26 'heavy' tank layout. it'd be 1945 earlier than this tank developed into the T26E3 and at last observed wrestle. the fundamental layout of the M26 - the designation the T26E3 were given whilst it used to be categorised 'standard' in March 1945 - used to be to shape the root of an extended line of good tanks (M46, M47, M48 and M60) that may serve US militia for forty years. Illustrated with 250 images, colour profiles, and unique line drawings; eighty pages.

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The relationship of aqueous flow dynamics to 24H IOP remains unclear. Aqueous production is known to decrease by 50–60% at night [8]. However, IOP rises during the nocturnal period, partly due to positional changes [5, 7]. An increase in EVP may contribute to this rise [9]. However, when data is collected in a supine position over 24H, fluctuations in IOP are still present [5]. This underlying fluctuation in IOP suggests circadian control of IOP. This control is independent of ambient lighting and changes in corneal biomechanical properties [10, 11].

Still, the persistence of these rhythms in patients with Horner syndrome may indicate an additional source of biochemical regulation of aqueous flow. ■ ■ IOP is highest in the habitual positions during the nocturnal period Prostaglandin analogs and carbonic anhydrase inhibitors more effectively lower IOP during the nocturnal period than beta-adrenergic antagonists The importance of 24H IOP, particularly the nocturnal (sleep) values, has not yet been elucidated. Nevertheless, IOP remains the only clinically modifiable risk factor for glaucoma.

1) [5, 7]. When IOPs were measured while subjects were in a supine position throughout the 24H study, the nocturnal rise in IOP, though present, fitted within a biphasic IOP curve with two peaks within 24H. The relationship of aqueous flow dynamics to 24H IOP remains unclear. Aqueous production is known to decrease by 50–60% at night [8]. However, IOP rises during the nocturnal period, partly due to positional changes [5, 7]. An increase in EVP may contribute to this rise [9]. However, when data is collected in a supine position over 24H, fluctuations in IOP are still present [5].

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