Results 51 to 60 of about 167,160 (259)

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

Hydrodynamic analysis of particle collection efficiency: comparing downflow and upflow filtration - doi: 10.4025/actascitechnol.v34i2.10803

Acta Scientiarum: Technology, 2011
Models of the filtration phenomenon describe the mass balance in bed filtration in terms of particle removal mechanisms, and allow for the determination of global particle removal efficiencies.
Alexandre Botari, Luiz di Bernardo
doaj   +1 more source

Evaluation of Mask Performances in Filtration and Comfort in Fabric Combinations

Nanomaterials, 2023
A systemic study on improving particulate pollutant filtration efficiency through the combination of conventional fabrics is presented with the objective of finding comfortable, yet effective airway mask materials and products.
Ji Wang, Renhai Zhao, Yintao Zhao, Xin Ning   +3 more
doaj   +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

Influence of Humidity on FFP Masks with Electret Filter Media Under Real-Life Wearing Conditions

Atmosphere
Most FFP (Filtering Face Piece) masks are made from nonwoven filter media that are electrostatically charged, resulting in the additional electrostatic capture mechanism of particles.
Daniel Stoll, Sergiy Antonyuk
doaj   +1 more source

Numerical Comparison of Prediction Models for Aerosol Filtration Efficiency Applied on a Hollow-Fiber Membrane Pore Structure

Nanomaterials, 2018
Hollow-fiber membranes (HFMs) have been widely applied to many liquid treatment applications such as wastewater treatment, membrane contactors/bioreactors and membrane distillation.
Pavel Bulejko
doaj   +1 more source

Morse Theory for Filtrations and Efficient Computation of Persistent Homology [PDF]

Discrete & Computational Geometry, 2013
Persistent homology is a growing technique in the analyis of large data sets (see \textit{G. Carlsson} [Topology and data, Bull. Am. Math. Soc., New Ser. 46, No. 2, 255--308 (2009; Zbl 1172.62002)]). The authors of this paper propose a method of reducing the complexity of computing persistent homology by reducing the number of cells in the filtered ...
Konstantin Mischaikow, Vidit Nanda
openaire   +3 more sources

Identification of a Shiga toxin A‐derived peptide internalized into Gb3 receptor‐bearing cells via interaction with the Shiga toxin B subunit

FEBS Letters, EarlyView.
The process of internalization of the Shiga toxin A subunit via formation of a complex with the Shiga toxin B subunit, which specifically binds to the Gb3 receptor. The peptide is designed to act as a carrier of drugs into cancer cells. Here, we explored the potential of peptides derived from the catalytic A subunit of Shiga toxin (STxA) to be drug ...
Giulia Opassi, João C. Encarnação, Valeria Napolitano, Grzegorz Dubin, Grzegorz Popowicz, Karl Andersson, U. Helena Danielson   +6 more
wiley   +1 more source

Evaluating viral filtration efficiency in non-centralized air-conditioning systems: a novel approach grounded in medical experimental data

Geomatics, Natural Hazards & Risk
This study enhances the understanding of virus removal efficiency by filters, crucial for predicting respiratory disease transmission risk and guiding outbreak prevention. Current research often neglects the survival behaviour of pathogens.
Yin Zhang, Ying Zhao, Jin Li, Ying Huang
doaj   +1 more source

Nanofibers for High Efficiency Filtration

Journal of Material Science & Engineering, 2017
Nanofiber is a broad phrase generally referring to a fibre with a diameter less than 1 micron. While glass fibres have existed in the sub-micron range for some time and polymeric meltblown fibres are just beginning to break the micron barrier, sub-half-micron diameters have been used for air filtration in commercial, industrial and defence applications
openaire   +1 more source