نتایج جستجو برای: period 1991

تعداد نتایج: 537830  

2011
SAPTO INDRATNO SHARAD SILWAL

We introduce a novel approach towards Harnack’s inequality in the context of spaces of homogeneous type. This approach, based on the socalled critical density property and doubling properties for weights, avoids the explicit use of covering lemmas and BMO.

Journal: :Acta psychologica 2010
Robin Baurès Daniel Oberfeld Heiko Hecht

The accuracy of time-to-contact (TTC) judgments for single approaching objects is well researched, however, close to nothing is known about our ability to make simultaneous TTC judgments for two or more objects. Such complex judgments are required in many everyday situations, for instance when crossing a multi-lane street or when engaged in multi-player ball games. We used a prediction-motion p...

Journal: :Psychological review 2001
M D Byrne J R Anderson

The authors describe ACT-R/perceptual-motor (ACT-R/PM), an integrated theory of cognition, perception, and action that consists of the ACT-R production system and a set of perceptual-motor modules. Each module (including cognition) is essentially serial, but modules run in parallel with one another. ACT-R/PM can model simple dual tasks such as the psychological refractory period (PRP), includin...

1995
A. Hof O. Knill B. Simon

We give new examples of discrete Schrδdinger operators with potentials taking finitely many values that have purely singular continuous spectrum. If the hull X of the potential is strictly ergodic, then the existence of just one potential x in X for which the operator has no eigenvalues implies that there is a generic set in X for which the operator has purely singular continuous spectrum. A su...

Journal: :Perception & psychophysics 2003
Eric Ruthruff Harold E Pashler Eliot Hazeltine

Most studies using the psychological refractory period (PRP) design suggest that dual-task performance is limited by a central bottleneck. Because subjects are usually told to emphasize Task 1, however, the bottleneck might reflect a strategic choice rather than a structural limitation. To evaluate the possibility that central operations can proceed in parallel, albeit with capacity limitations...

Journal: :Folia Oeconomica Stetinensia 2023

Abstract Research background As part of the process structural transformation that countries go through in their development journey, relative significance agriculture as a sector typically shrinks over time. Nonetheless, agricultural maintains its terms trade potential and global employment prospects to this day. The extant literature largely neglects impact countries’ land resources on by emp...

Journal: :International journal of research in finance and management 2023

Recent developments in the international trade scenario and corresponding alterations India’s foreign policies have depicted far-reaching implications for agricultural sector general exports particular. Indian Agriculture product has occupied an important place world agriculture product. India used to be central of export many commodities. The present study ascertained growth performance during...

Journal: :Journal of clinical microbiology 2006
Per Sandven Lars Bevanger Asbjørn Digranes Hanne H Haukland Turid Mannsåker Peter Gaustad

A long-term, nationwide prospective candidemia study has been ongoing in Norway since 1991. All medical microbiological laboratories in the country have participated. During the period 1991 to 2003 a total of 1,393 episodes of candidemia occurred in 1,348 patients. The incidence of candidemia episodes per 100,000 inhabitants increased from approximately 2 episodes in the early 1990s to 3 episod...

Journal: :Health statistics quarterly 2009
Tom Clemens Paul Boyle Frank Popham

Testing whether unemployment causes health deterioration is complicated because failing health may increase the probability of unemployment. In some previous studies of unemployment and mortality a 'wear-off' period is used to exclude any deaths occurring in the first few years after employment status was observed. It is assumed that selection effects will wear-off during this period. In this a...

Journal: : 2022

The objective : to study the long-term changes (1991-2020) in tuberculosis mortality population of Altai Kray and assess impact certain categories citizens on formation this rate. Subjects Methods Statistical Forms no. 8, 30, 33, statistical compilations, medical scientific publications. Results. In order analyze curves reflecting Russia, these have been divided into three conventional periods....

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید