Results 91 to 100 of about 721,605 (301)

The use of benthic macroinvertebrates to establish a benchmark for evaluating the environmental quality of microtidal, temperate southern hemisphere estuaries [PDF]

open access: yes, 2012
Establishment of a benchmark against which deleterious changes to an estuary can be evaluated requires validating that it has not been subjected to detrimental anthropogenic perturbations and then identifying the biological features which are indicative ...
Tweedley, J.R.   +9 more
core   +1 more source

Species richness and abundance of monogonont rotifers in relation to environmental factors in the UNESCO Sakaerat Biosphere Reserve, Thailand

open access: yesJournal of Threatened Taxa, 2019
The UNESCO Sakaerat Biosphere Reserve plays an important role in nature conservation and environmental protection.  Previous focus on terrestrial habitats and neglect of aquatic ecosystems has resulted in an incomplete picture of biodiversity of the area.
Nattaporn Plangklang   +2 more
doaj   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

Cryptic animal species are homogeneously distributed among taxa and biogeographical regions [PDF]

open access: yes, 2007
Background Cryptic species are two or more distinct but morphologically similar species that were classified as a single species. During the past two decades we observed an exponential growth of publications on cryptic species. Recently published reviews
Pfenninger Markus   +5 more
core   +1 more source

Antimicrobial Potential of Secalonic Acids from Arctic-Derived Penicillium chrysogenum INA 01369

open access: yesAntibiotics
In this study, two compounds have been isolated from the Arctic-derived fungus Penicillium chrysogenum INA 13460. Structural elucidation, performed using 2D NMR and HR-ESIMS data, has identified the compounds as stereoisomers of secalonic acids, dimeric ...
Yulia A. Roshka   +9 more
doaj   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Taxonomic results of the Bryotrop expedition to Zaire and Rwanda : 23., Neckeraceae, Pterobryaceae, Hypopterygiaceae [PDF]

open access: yes, 1993
Neckera submacrocarpa may be recognized by the numerous paraphyllia to ca. 2 mm long, and distally rugose perichaetial leaves. According to De Sloover (1977), it occurs in montane forests and Senecio heaths between 2 400 and 3 650 m. The present material
Enroth, Johannes
core  

Taxonomic novelties in Andean Senecioneae (Compositae)

open access: yes, 2019
This work has been funded by FONDECYT (Fondo Nacional de Desarrollo Científico y Tecnológico) from Chile by means of a postdoctoral fellowship of the first author (project Nº3170270)Two new Andean species belonging to the tribe Senecioneae (Compositae ...
Calvo, Joel   +2 more
core   +1 more source

Lamarck’s new species of Mesembryanthemaceae and the types of their names

open access: yesBothalia: African Biodiversity & Conservation, 2005
The holotype of Mesembryanthemum echinatum Lam. is an unpublished, sketchy drawing kept in the Lamarck herbarium (P-LAM). The holotype of the name M. vaginatum Lam., which has not been taken up again since its original publication, is also in P-LAM. That
P. Chesselet, M. Pignal
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

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