Results 41 to 50 of about 710,527 (288)

Disentangling mechanisms by which microplastic films affect plant-soil systems: physical effects of particles can override toxic effects of additives

Environmental Sciences Europe
Background Microplastics, polymer-based particles 
Y. M. Lozano, C. Perlenfein, M. G. Bernal, M. C. Rillig   +3 more
doaj   +1 more source

Transgenerational effects of the plasticizer di-2-ethylhexyl phthalate on survival, growth, and reproduction of Daphnia magna

Vietnam Journal of Science, Technology and Engineering, 2022
In this study, we conducted a chronic toxicity assessment of di-2-ethylhexyl phthalate (DEHP) on the life history traits of Daphnia magna across three generations.
Thi-Phuong-Dung Le, Van-Tai Nguyen, Thi-My-Chi Vo, Nghia-Hiep Bui, Thanh-Son Dao   +4 more
doaj   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

FEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee, Junho Jeong, Chae Yeong Lee, Hyunjoon Cho, Man Hwan Oh, Je Chul Lee, Jee‐Young Lee, Yangmee Kim   +7 more
wiley   +1 more source

Physisorption and Chemisorption Mechanisms Influencing Micro (Nano) Plastics-Organic Chemical Contaminants Interactions: A Review

Frontiers in Environmental Science, 2021
Microplastics, which serve as sources and vector transport of organic contaminants in both terrestrial and marine environments, are emerging micropollutants of increasing concerns due to their potential harmful impacts on the environment, biota and human
Omowumi D. Agboola, Nsikak U. Benson
doaj   +1 more source

Modelling stem cell differentiation related processes—A practical overview for biologists

FEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar, Xinqi Yan, Lucas F. Jansen Klomp, Stefano Schivo, Janine N. Post   +4 more
wiley   +1 more source

Plastic Odyssey calls at the Port of Sansouci in Santo Domingo, Dominican Republic, from August 28 to September 22, 2023, continuing its exploration of solutions to plastic pollution in the Caribbean region

, 2023
[Press release]. In October 2022, the ship Plastic Odyssey set off on a 3-year expedition around the world from the Port of Marseille. After several stopovers in the Mediterranean (Lebanon, Egypt, Tunisia, Morocco) and West Africa (Senegal, Guinea, Cape ...
Plastic Odyssey
core  

Understanding the environmental impact and risks of organic additives in plastics: A call for sustained research and sustainable solutions

Emerging Contaminants
The pervasive use of plastics in modern society necessitates the incorporation of organic additives to enhance their performance. However, the leachability of these additives and their potential adverse effects on environmental and biological health have
Zehui Wang, Gang Liang, Shanxue Jiang, Fang Wang, Haifeng Li, Bingru Li, Hong Zhu, Anxiang Lu, Wenwen Gong   +8 more
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

Safety evaluation of certain contaminants in food: prepared by the ninetieth meeting of the Joint FAO/WHO Expert Committee on Food Additives (JECFA)

, 2023
v, 394 p.This volume presents safety evaluations of selected food contaminants reviewed by the Joint FAO/WHO Expert Committee on Food Additives (JECFA) at its ninetieth meeting, held online in November 2020.
World Health Organization, Food and Agriculture Organization of the United Nations   +1 more
core  

A plastic load criterion for inelastic design by analysis [PDF]

, 2006
The allowable plastic load in pressure vessel design by analysis is determined by applying a graphical construction to a characteristic load-deformation plot of the collapse behavior of the vessel.
Li, Hongjun, Mackenzie, Donald
core   +4 more sources