Results 71 to 80 of about 545,698 (316)

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

Space-Efficient Conversions from SLPs

We give algorithms that, given a straight-line program (SLP) with $g$ rules that generates (only) a text $T [1..n]$, builds within $O(g)$ space the Lempel-Ziv (LZ) parse of $T$ (of $z$ phrases) in time $O(n\log^2 n)$ or in time $O(gz\log^2(n/z))$. We also show how to build a locally consistent grammar (LCG) of optimal size $g_{lc} = O(δ\log\frac{n}δ ...
Travis Gagie, Adrián Goga, Artur Jez, Gonzalo Navarro 0001   +3 more
openaire   +2 more sources

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

Comparative Study of Liquid Biodiesel From Sterculia foetida (Bottle Tree) Using CuO-CeO2 and Fe2O3 Nano Catalysts

Frontiers in Energy Research, 2019
This study examined the potential of nanocatalyst CuO-CeO2 and Fe2O3 for efficient conversion of Sterculia foetida seed Oil into biodiesel. S. foetida contains 40% oil content and low free fatty acid value (0.18 mg KOH/g).
Maryam Tanveer Akhtar, Mushtaq Ahmad, Anjuman Shaheen, Muhammad Zafar, Riaz Ullah, Maliha Asma, Shazia Sultana, Mamoona Munir, Neelam Rashid, Khafsa Malik, Muhammad Saeed, Amir Waseem   +11 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

Barriers and Drivers to Energy Efficiency - A new Taxonomical Approach [PDF]

This paper develops a new systematic classification and explanation of barriers and drivers to energy efficiency. Using an actor oriented approach, the paper tries to identify (i) the drivers and barriers that affect the success or failure of energy ...
B. Sudhakara Reddy, Gaudenz Assenza
core   +1 more source

Superior Multimodal Luminescence in a Stable Single‐Host Nanomaterial with Large‐Scale Synthesis for High‐Level Anti‐Counterfeiting and Encryption

Advanced Science
Multimode luminescent materials exhibit tunable photon emissions under different excitation or stimuli channels, endowing them high encoding capacity and confidentiality for anti‐counterfeiting and encryption.
Bingyin Kong, Gencai Pan, Mengke Wang, Hongye Tang, Zhipeng Lv, Shiyu Sun, Yuxin Luo, Wenwu You, Wen Xu, Yanli Mao   +9 more
doaj   +1 more source

Analytical approximation of the second-harmonic conversion efficiency

Applied Optics, 2020
The second-harmonic generation process of a focused laser beam inside a nonlinear crystal is described by the Boyd–Kleinman theory. Calculating the actual conversion efficiency and upconverted power requires the solution to a double integral that is analytically intractable.
Daniel, John R., Tsai, Shan-Wen, Hemmerling, Boerge   +2 more
openaire   +3 more sources

Complementary chromatic adaptation as a strategy to increase energy conversion efficiency of microalgae-cyanobacteria consortia in continuous LED photobioreactors

, 2023
Phototrophic cultivation of microalgae represents a potential sustainable process to obtain valuable commercial products, but the industrial cultivation is still hampered by low energy-to-biomass conversion efficiency.
Borella L., Trivellin N., Marchese D., Sforza E.   +3 more
core   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source