Results 41 to 50 of about 206,257 (263)

A loop unique to ferredoxin-dependent glutamate synthases is not absolutely essential for ferredoxin-dependent catalytic activity [PDF]

Photosynthesis Research, 2014
It had been proposed that a loop, typically containing 26 or 27 amino acids, which is only present in monomeric, ferredoxin-dependent, "plant-type" glutamate synthases and is absent from the catalytic α-subunits of both NADPH-dependent, heterodimeric glutamate synthases found in non-photosynthetic bacteria and NADH-dependent heterodimeric ...
Trypathi, Jatindra N., Hirasawa, Masakazu, Sutton, R. Brian, Dasgupta, Afia, Vaidynathan, Nandhita, Zabet-Moghaddam, Massoud, Florencio Bellido, Francisco Javier, Srivastava, Anurag P., Knaff, David B.   +8 more
openaire   +5 more sources

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

Power Load Prediction Method Based on CEEMDAN and Spectral Time Graph Convolutional Networks [PDF]

Jisuanji gongcheng
The traditional forecasting model cannot accurately determine the spatial correlation and temporal dependence of time-series load data, resulting in low forecasting accuracy.
ZHU Li, XIA Yu, ZHU Chunqiang, DENG Fan
doaj   +1 more source

Multiphoton interaction phase shifts in attosecond science

Physical Review Research, 2021
Ab initio simulations of a range of interferometric experiments are used to identify a strong dependence on multiphoton phase shifts in above-threshold ionization (ATI).
Mattias Bertolino, Jan Marcus Dahlström
doaj   +1 more source

Absolute risk reduction may depend on the duration of the follow-up [PDF]

Expert Review of Clinical Pharmacology, 2015
Response to: Diamond DA and Ravnskov U. How statistical deception created the appearance that statins are safe and effective in primary and secondary prevention of cardiovascular disease. Expert Rev Clin Pharm 2015;8(2):201-210.
openaire   +3 more sources

The human gut microbiome across the life course

FEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero, Basak Bahcivanci, Antonietta Hayhoe, Animesh Acharjee, Ezgi Özkurt   +4 more
wiley   +1 more source

Design and analysis strategies for robust microbiome ageing research

FEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik, İsmail Güderer, Yi Wang, Tayyaba Alvi, Prasoon Pandey, Handan Melike Dönertaş   +5 more
wiley   +1 more source

Time-constant absolute effect measures for time-to-event outcomes

BMC Medical Research Methodology
Background Reporting treatment effects from clinical trials on both relative and absolute scales is crucial. While absolute measures like the Number Needed to Treat (NNT) are well-established for binary outcomes, their calculation for time-to-event ...
Oliver Kuss, Annika Hoyer
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

Temperature dependence of the absolute rate constant for the reaction of ozone with dimethyl sulfide [PDF]

Journal of Environmental Sciences, 2007
Absolute rate constants for the reaction of ozone with dimethyl sulfide (DMS) were measured in a 200-L Teflon chamber over the temperature range of 283-353 K. Measurements were carried out using DMS in large excess over ozone of 10 to 1 or greater. Over the indicated temperature range, the data could be fit to the simple Arrhenius expression as kDMS = (
Hai-tao, Wang, Yu-jie, Zhang, Yu-jing, Mu   +2 more
openaire   +2 more sources