Results 81 to 90 of about 1,333,113 (282)
A quantization procedure based on completely positive maps and Markov operators
, 2012 We describe $\omega$-limit sets of completely positive (CP) maps over finite-dimensional spaces. In such sets and in its corresponding convex hulls, CP maps present isometric behavior and the states contained in it commute with each other.
A. Lasota +15 more
core +1 more source
Atomic Positive Linear Maps in Matrix Algebras
Publications of the Research Institute for Mathematical Sciences, 1998 We show that all of the known generalizations of the Choi maps are atomic maps.
openaire +3 more sources
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Introduction Bloodstream infections due to repeated vascular access (VA) puncture and circuit connections remain major concerns in hemodialysis. Therefore, we examined current practices for glove, disinfectant, and personal protective equipment (PPE) use according to VA type in national university hospitals in Japan.
Aiko Yamada +6 more
wiley +1 more source
Positive linear maps and perturbation bounds of matrices
Linear Algebra and its Applications, 2017 We show how positive unital linear maps can be used to obtain lower bounds for the maximum distance between the eigenvalues of two normal matrices. Some related bounds for the spread and condition number of Hermitian matrices are also discussed here.
Sharma, R., Kumari, R.
openaire +3 more sources
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
Extensions of Kadison’s inequality on positive linear maps
Linear Algebra and its Applications, 2012 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yuan, Jiangtao, Ji, Guoxing
openaire +2 more sources
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 +2 more
wiley +1 more source
Distinguishing between statistical and systematic errors in quantum process tomography
New Journal of Physics, 2019 It is generally assumed that every process in quantum physics can be described mathematically by a completely positive map. However, experimentally reconstructed processes are not necessarily completely positive due to statistical or systematic errors ...
Sabine Wölk +3 more
doaj +1 more source
Assessment of Deposited Red Clay Soil in Kirkuk City Using Remote Sensing Data and GIS Techniques [PDF]
Nature Environment and Pollution TechnologyThis study investigates the physical characteristics of red clay using the IDW approach and linear regression modeling in an area of 268.12 km2, focusing on Kirkuk, Bor, and Jambor structures.
V. F. Salahalden, M. A. Shareef and Q. A. M. Al Nuaimy
doaj +1 more source
A Robust Image Encryption Algorithm Based on a 32-bit Chaotic System
IEEE Access, 2020 In these years, image encryption systems based on chaotic maps have received considerable attention from researchers. For the security of encryption algorithms, it is important to ensure that chaotic systems can produce high quality pseudo-random ...
Hao Li, Lianbing Deng, Zhaoquan Gu
doaj +1 more source