Results 1 to 10 of about 3,956,236 (144)

Oscillatory rheotaxis of artificial swimmers in microchannels

open access: yesNature Communications, 2022
Biological and artificial microswimmers often navigate channels under external flow, where in many biomicroswimmers the active upstream motion is oscillatory. Here the authors demonstrate that regular, controllable, and reproducible oscillatory rheotaxis
Ranabir Dey   +4 more
doaj   +1 more source

A periodic boundary value problem with switchings under nonlinear perturbations

open access: yesBoundary Value Problems, 2023
We investigate the existence of solutions of weakly nonlinear periodic boundary value problems for systems of ordinary differential equations with switchings and the construction of these solutions.
Peter Benner   +2 more
doaj   +1 more source

Anticipating the impact of COVID19 and comorbidities on the South African healthcare system by agent-based simulations

open access: yesScientific Reports, 2021
Tuberculosis (TB) is the 10th leading cause of death worldwide, and since 2007 it has been the main cause of death from a single infectious agent, ranking above HIV/AIDS. The current COVID-19 is a pandemic which caused many deaths around the world.
Jan Christian Schlüter   +5 more
doaj   +1 more source

Predicting effectiveness of countermeasures during the COVID-19 outbreak in South Africa using agent-based simulation

open access: yesHumanities & Social Sciences Communications, 2021
COVID-19 has spread rapidly around the globe. While there has been a slow down of the spread in some countries, e.g., in China, the African continent is still at the beginning of a potentially wide spread of the virus.
Moritz Kersting   +4 more
doaj   +1 more source

Broad-Spectrum Antiviral Activity of Influenza A Defective Interfering Particles against Respiratory Syncytial, Yellow Fever, and Zika Virus Replication In Vitro

open access: yesViruses, 2023
New broadly acting and readily available antiviral agents are needed to combat existing and emerging viruses. Defective interfering particles (DIPs) of influenza A virus (IAV) are regarded as promising options for the prevention and treatment of IAV ...
Lars Pelz   +7 more
doaj   +1 more source

Site-specific N-glycosylation analysis of animal cell culture-derived Zika virus proteins

open access: yesScientific Reports, 2021
Here, we present for the first time, a site-specific N-glycosylation analysis of proteins from a Brazilian Zika virus (ZIKV) strain. The virus was propagated with high yield in an embryo-derived stem cell line (EB66, Valneva SE), and concentrated by g ...
Alexander Pralow   +5 more
doaj   +1 more source

Reliable N-Glycan Analysis–Removal of Frequently Occurring Oligosaccharide Impurities by Enzymatic Degradation

open access: yesMolecules, 2023
Glycosylation, especially N-glycosylation, is one of the most common protein modifications, with immense importance at the molecular, cellular, and organismal level.
Robert Burock   +5 more
doaj   +1 more source

Multicomponent Materials to Improve Solubility: Eutectics of Drug Aminoglutethimide

open access: yesCrystals, 2021
Here, we report the synthesis and experimental characterization of three drug-drug eutectic mixtures of drug aminoglutethimide (AMG) with caffeine (CAF), nicotinamide (NIC) and ethenzamide (ZMD).
Basanta Saikia   +2 more
doaj   +1 more source

Mental disorder recovery correlated with centralities and interactions on an online social network [PDF]

open access: yesPeerJ, 2015
Recent research has established both a theoretical basis and strong empirical evidence that effective social behavior plays a beneficial role in the maintenance of physical and psychological well-being of people.
Xinpei Ma, Hiroki Sayama
doaj   +2 more sources

Population Dynamics on Complex Food Webs [PDF]

open access: yes, 2011
In this work we analyse the topological and dynamical properties of a simple model of complex food webs, namely the niche model. In order to underline competition among species, we introduce "prey" and "predators" weighted overlap graphs derived from the
Barabási A.-L.   +5 more
core   +2 more sources

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