Results 71 to 80 of about 5,721,777 (374)

Representing numeric data in 32 bits while preserving 64-bit precision [PDF]

, 2015
Data files often consist of numbers having only a few significant decimal digits, whose information content would allow storage in only 32 bits. However, we may require that arithmetic operations involving these numbers be done with 64-bit floating-point
Neal, Radford M.
core  

A Comparative Study of Cerebral Oxygenation During Exercise in Hemodialysis and Peritoneal Dialysis Patients

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou, Konstantina Dipla, Danai Faitatzidou, Fotini Iatridi, Areti Georgiou, Artemios Karagiannidis, Erasmia Sampani, Chrysostomos Dimitriadis, Aggelos Koutlas, Andreas Zafeiridis, Pantelis Sarafidis   +10 more
wiley   +1 more source

Floating-point profiling of ACTS using Verrou [PDF]

EPJ Web of Conferences, 2019
Floating-point computations play a central role in scientific computing. Achieving high numerical stability in these computations affects not just correctness, but also computing efficiency, by accelerating the convergence of iterative methods and ...
Grasland Hadrien, Févotte François, Lathuilière Bruno, Chamont David   +3 more
doaj   +1 more source

Highly accelerated simulations of glassy dynamics using GPUs: caveats on limited floating-point precision

, 2011
Modern graphics processing units (GPUs) provide impressive computing resources, which can be accessed conveniently through the CUDA programming interface.
Anderson, Block, Dekker, Felix Höfling, Flenner, Frenkel, Götze, Hansen, Harvey, Knuth, Knuth, Kob, Kob, Kob, Lippert, Liu, Mosayebi, Peter H. Colberg, Plimpton, Preis, Rapaport, Sagan, Stone, van Meel, Voelz, Weeks, Xu, Yang, Zagha   +28 more
core   +1 more source

Predicting the Future Burden of Renal Replacement Therapy in Türkiye Using National Registry Data and Comparative Modeling Approaches

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic kidney disease is a growing public health problem worldwide, and the number of patients requiring renal replacement therapy is steadily increasing. Türkiye has experienced a similar rise in both the incidence and prevalence of renal replacement therapy over the past decades; however, national‐level projections of future ...
Arzu Akgül, Neriman Sıla Koç, Berrak Itır Aylı   +2 more
wiley   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Algorithms for Efficient Reproducible Floating Point Summation

ACM Transactions on Mathematical Software, 2020
We define “reproducibility” as getting bitwise identical results from multiple runs of the same program, perhaps with different hardware resources or other changes that should not affect the answer.
Willow Ahrens, J. Demmel, Hong Diep Nguyen   +2 more
semanticscholar   +1 more source

Impact of the floating-point precision and interpolation scheme on the results of DNS of turbulence by pseudo-spectral codes

, 2007
In this paper we investigate the impact of the floating-point precision and interpolation scheme on the results of direct numerical simulations (DNS) of turbulence by pseudo-spectral codes. Three different types of floating-point precision configurations
Bec, Benzi, Biferale, Canuto, Chevillard, Gottlieb, Holger Homann, Jürgen Dreher, Kolmogorov, Mordant, Müller, Porta, Press, Rainer Grauer, She, Shu, Vincent, Yeung   +17 more
core   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Simulating Low Precision Floating-Point Arithmetic

SIAM Journal on Scientific Computing, 2019
The half-precision (fp16) floating-point format, defined in the 2008 revision of the IEEE standard for floating-point arithmetic, and a more recently proposed half-precision format bfloat16, are in...
N. Higham, S. Pranesh
semanticscholar   +1 more source