Results 121 to 130 of about 179,507 (309)

Resonance and frequency-locking phenomena in spatially extended phytoplankton-zooplankton system with additive noise and periodic forces

open access: yes, 2007
In this paper, we present a spatial version of phytoplankton-zooplankton model that includes some important factors such as external periodic forces, noise, and diffusion processes.
  +20 more
core   +1 more source

A Promising Antibacterial Inhibition of Propolis Extracts Against Carbapenem‐Resistant Bacteria Isolated From Clinical Samples

open access: yesChemistry &Biodiversity, EarlyView.
ABSTRACT The increasing inadequacy of antibiotics against multidrug‐resistant pathogens is a growing concern. In this study, the antibacterial activity of propolis extracts with different phenolic profiles against carbapenem‐resistant clinical isolates was investigated.
Ülkü Zeynep Esertaş   +3 more
wiley   +1 more source

Antibacterial and Antibiofilm Activity of 8‐Hydroxyquinoline Derivatives Against Mycobacterium and Staphylococcus Species

open access: yesChemistry &Biodiversity, EarlyView.
Synthesis of 8‐hydroxyquinoline derivatives (QD 1‐12) from different analogues of 8‐hydroxyquinoline (HQ 1‐4). The derivatives and parent compounds were evaluated for antibacterial and antibiofilm activity against Mycobacterium tuberculosis, Mycobacterium smegmatis, methicillin‐resistant Staphylococcus aureus and methicillin‐sensitive Staphylococcus ...
Namrita Lall   +9 more
wiley   +1 more source

Ecological studies on some lakes of the Amazon valley

open access: yes, 1967
Of the three types of lakes studied, clear water, white water, and brown water, the white water lakes are the only ones to have a reasonable autochtonous production of organic matter. Owing probably to the lack of mineral salts, the primary production is
Marlier, G.
core  

Migration of Net Phytoplankton and Zooplankton in Mendum’s Pond, New Hampshire [PDF]

open access: yes, 2006
The study examines the vertical distribution and migratory behavior of net phytoplankton and zooplankton of Mendum’s Pond in Barrington, N.H. The cyanobacteria, Microcystis and Aphanocapsa were the dominant net phytoplankton in this lake.
Murby, Amanda L.
core   +1 more source

Potential of Eugenia brejoensis (Mazine) Essential Oil in Combating Multidrug‐Resistant (MDR) Acinetobacter baumannii and Pseudomonas aeruginosa

open access: yesChemistry &Biodiversity, EarlyView.
ABSTRACT The genus Eugenia has a long history of use in traditional medicine for treating various conditions, including infectious diseases, gastrointestinal disorders, and skin problems. Essential oils derived from Eugenia species are known for their medicinal properties and have been studied for their antimicrobial and bioactive potential. This study
Jonathan Mandú de Araújo   +10 more
wiley   +1 more source

A view from above : changing seas, seabirds and food sources [PDF]

open access: yes, 2009
In this review we summarize what is known about mechanisms by which climate change may be affecting the populations of seabirds around the UK. Breeding success and adult survival are the key factors affecting changes in seabird populations, and food ...
Edwards, M.   +4 more
core  

Natural Products Inhibit Bacterial Growth and Modulate Quorum‐Sensing Systems Las and Rhl in Pseudomonas aeruginosa PA14

open access: yesChemistry &Biodiversity, EarlyView.
ABSTRACT Quorum sensing (QS) is a bacterial cell communication system in Pseudomonas aeruginosa, which regulates the production of several virulence factors, including pyocyanin, exoproteases, and biofilm formation. Natural products (NPs) have demonstrated their ability to control QS in different bacteria. This work evaluated the antimicrobial and anti‐
Oswaldo Pablo Martínez‐Rodríguez   +8 more
wiley   +1 more source

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