Abstract This article discusses research on time perception published by three women (Beatrice Edgell, Josephine Nash Curtis, and Mary Sturt) active in the early years of 20th. Century. Edgell (On judgment, Am. J. Psychol. , 1903) was involved psychophysical studies brief durations, tradition Vierordt other mostly German authors. Curtis (Duration temporal 1916) provided detailed reports introsp...

An understanding of sediment transport processes and resultant concentration dynamics in estuaries is of great importance to engineering design awareness and the management of these environments. Predictive modelling approaches provide an opportunity to investigate and address potential system responses to nominated events, changes, or conditions of interest, often on high temporal and spatial ...

We present a matrix-free line search algorithm for large-scale equality constrained optimization that allows for inexact step computations. For strictly convex problems, the method reduces to the inexact sequential quadratic programming approach proposed by Byrd et al. [SIAM J. Optim. 19(1) 351–369, 2008]. For nonconvex problems, the methodology developed in this paper allows for the presence o...

A brief description of the machine (Fig. 1) was given in the earlier paper on this subject (Curtis, 1949), and this apparatus has been used for all the cases without modification. It was devised by Dr. E. Schuster and it enables exposures to be made at three variable speeds up to 2 frames per second. Intensifying screens are employed, and the images, each 10 in. wide by 8 in. long, are projecte...

Of all the attorneys and judges who participated in the long and tortured litigation over the status of Dred Scott and his family, the performance of Justice Benjamin Robbins Curtis is the most lavishly praised by most modern commentators. In part, this high esteem reflects a strong commitment to the substantive view that Congress had the power to prohibit slavery in the territories. But, unlik...

We show that for general linear groups GLn(q) as well as for q-Schur algebras the knowledge of the modular Alvis-Curtis duality over fields of characteristic l, l ∤ q, is equivalent to the knowledge of the decomposition numbers.

We obtain the structure of weight 2 blocks and [2 : 1]-pairs of q-Schur algebras, and compute explicitly the modular Alvis-Curtis duality for weight 2 blocks of finite general linear groups in non-defining characteristic.