Results 41 to 50 of about 2,482,039 (287)

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Maximum power point tracking in PV systems based on adaptive control and sliding mode control

Revista Facultad de Ingeniería Universidad de Antioquia, 2015
Photovoltaic (PV) systems are commonly controlled using PI or PID structures, which cannot ensure global stability and a constant settling time. Therefore, the optimization algorithms, e.g.
Paula Andrea Ortiz-Valencia, Luz Adriana Trejos-Grisales, Carlos Andrés Ramos-Paja   +2 more
doaj   +1 more source

Finite time synchronization of the continuous/discrete data assimilation algorithms for Lorenz 63 system based on the back and forth nudging techniques

Results in Applied Mathematics, 2023
In this work, we numerically and theoretically study the finite time synchronization of the continuous/discrete data assimilation algorithms for Lorenz 63 system based on the back and forth nudging (BFN) techniques.
Yu Chen Peng, Liang Chun Wu, Ming-Cheng Shiue   +2 more
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Fast and Secure Implementation of Modular Exponentiation for Mitigating Fine-Grained Cache Attacks

Applied Sciences, 2018
Constant-time technique is of crucial importance to prevent secrets of cryptographic algorithms from leakage by cache attacks. In this paper, we propose Permute-Scatter-Gather, a novel constant-time method for the modular exponentiation that is used in ...
Youngjoo Shin
doaj   +1 more source

Approximate Range Emptiness in Constant Time and Optimal Space [PDF]

ACM-SIAM Symposium on Discrete Algorithms, 2014
This paper studies the e-approximate range emptiness problem, where the task is to represent a set S of n points from {0, . . ., U − 1} and answer emptiness queries of the form "[a; b] ∩ S ≠ O ?" with a probability of false positives allowed.
Mayank Goswami, A. Jørgensen, Kasper Green Larsen, R. Pagh   +3 more
semanticscholar   +1 more source

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

FEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Number-Theoretic Transform with Constant Time Computation for Embedded Post-Quantum Cryptography

Acta Electrotechnica et Informatica, 2022
In this article, we describe the principles and advantages of using the Number-Theoretic Transform (NTT) in post-quantum cryptography. We deal with usages of NTT in post-quantum algorithms included in the competition announced by the National Institute ...
Kupcová Eva, Drutarovský Miloš
doaj   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

FEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson, Tomáš Gedeon, Mauricio Garcia Benitez, Campbell Putnam, William R. Harcombe, Radhakrishnan Mahadevan, Ashley E. Beck   +6 more
wiley   +1 more source

Density-Based clustering in mapReduce with guarantees on parallel time, space, and solution quality [PDF]

Transactions on Combinatorics
A well-known clustering problem called Density-Based Spatial Clustering of Applications with Noise~(DBSCAN) involves computing the solutions of at least one disk range query per input point, computing the connected components of a graph, and bichromatic ...
Sepideh Aghamolaei, Mohammad Ghodsi
doaj   +1 more source