We present a new methodology to derive faster composite operations of the form dP + Q, where d is a small integer ≥ 2, for generic ECC scalar multiplications over prime fields. In particular, we present an efficient Doubling-Addition (DA) operation that can be exploited to accelerate most scalar multiplication methods, including multiscalar variants. We also present a new precomputation scheme ...

the victory of tugrul in dandanghan (431 hq/1073 ad) heralded the rule of seljuks in persia. the pinnacle of this period could be said to have been the ten years reign of alp arsalan (455-65/1063-73) and twenty years reign of his son malekshah (465-85/1063-73). these thirty years of continuous rule by father and son coincided with the chancellorship of khajeh nizam al-mulk, a wise counselor to ...

In a parity judgment task, the ERPs at parietal electrode sites become more negative as more mental rotation has to be executed. This article provides a review of the empirical evidence regarding this amplitude modulation. More specifically, experiments are reported that validate both the functional relationship between mental rotation and the amplitude modulation as well as the temporal relati...

We investigated whether concurrent processing of a tone (T1) interferes with early sensory-perceptual processing of a visual target (T2) in variants of the psychological refractory period paradigm using the event-related potential (ERP) method and 70-channel electroencephalographic recordings. T1, which required a speeded response, was presented in all trials. In half of the trials, T1 was foll...

M. A. Van Selst, E. Ruthruff, and J. C. Johnston (1999) found that practice dramatically reduced dual-task interference in a Psychological Refractory Period (PRP) paradigm with 1 vocal response and 1 manual response. Results from 3 further experiments using the highly trained participants of M. A. Van Selst et al. (1999) support 4 main conclusions: (a) A processing bottleneck exists even after ...

The apparently deleterious effect of aging on dual-task performance is well established, but there is little agreement about the source of this effect. Studies of the psychological refractory period (PRP) indicate that young adults can flexibly control dual-task performance through task-coordination strategies. Thus, the performance of older adults might differ from young adults because older a...

Why is the human brain fundamentally limited when attempting to execute two tasks at the same time or in close succession? Two classical paradigms, psychological refractory period (PRP) and task switching, have independently approached this issue, making significant advances in our understanding of the architecture of cognition. Yet, there is an apparent contradiction between the conclusions de...

shikārnāmeh-ye malikshāhī (the malikshāhī book of hunting) which is also known as shikārnāmeh-ye khusrawī, is a book prepared in the 5th ah/11th ad century by malikshāh’s order and niẓām al-mulk’s patronage. the book’s actual redaction is due to abū al-ḥassan niyshābūrī. this book refers to many other books on falconry and hunting (bāznāmeh and shikārnāmeh) especially the translation of the “sh...

Abstract
 In this study, bowl, plate, bowls, tray, inkwells, medicine containers (albarello), jar and jugs produced with monochromatic glazed, sgraffito underglaze decoration techniques belonging to the Islamic period in Van Museum are discussed. Very few examples among works examined were unearthed during excavations of Castle Old City Van. A large part ceramics was brought museum through...