Results 51 to 60 of about 7,712,883 (398)

An examination of species limits in the Aulacorhynchus “prasinus” toucanet complex (Aves: Ramphastidae) [PDF]

open access: yesPeerJ, 2016
The number of species recognized in Aulacorhynchus toucanets has varied tremendously over the past century. Revisors seem to disagree on whether head and bill coloration are useful indicators of species limits, especially in the A.
Kevin Winker
doaj   +2 more sources

Morphometric differences in the grasshopper Cornops aquaticum (Bruner, 1906) from South America and South Africa [PDF]

open access: yes, 2008
The semi-aquatic grasshopper Cornops aquaticum is native to South America and inhabits lowlands from southern Mexico to Central Argentina and Uruguay. It is host-specific to aquatic plants in the genera Eichhornia and Pontederia.
Adis, Joachim   +9 more
core   +2 more sources

Dual targeting of RET and SRC synergizes in RET fusion‐positive cancer cells

open access: yesMolecular Oncology, EarlyView.
Despite the strong activity of selective RET tyrosine kinase inhibitors (TKIs), resistance of RET fusion‐positive (RET+) lung cancer and thyroid cancer frequently occurs and is mainly driven by RET‐independent bypass mechanisms. Son et al. show that SRC TKIs significantly inhibit PAK and AKT survival signaling and enhance the efficacy of RET TKIs in ...
Juhyeon Son   +13 more
wiley   +1 more source

Molecular characterisation of human penile carcinoma and generation of paired epithelial primary cell lines

open access: yesMolecular Oncology, EarlyView.
Generation of two normal and tumour (cancerous) paired human cell lines using an established tissue culture technique and their characterisation is described. Cell lines were characterised at cellular, protein, chromosome and gene expression levels and for HPV status.
Simon Broad   +12 more
wiley   +1 more source

The palaeobiogeography of South American gomphotheres

open access: yesJournal of Palaeogeography, 2013
Gomphotheriid proboscideans reached South America as Late Cenozoic immigrants from North America. However, disagreements over alpha taxonomy, age dating and phylogenetic relationships have produced three competing hypotheses about this immigration: (1) a
Spencer G. Lucas
doaj   +1 more source

A new species and synonymy in Atrypanius Bates (Coleoptera, Cerambycidae, Lamiinae) from the Brazilian Amazon forest

open access: yesPapéis Avulsos de Zoologia, 2021
Atrypanius jauffreti sp. nov. is described from Brazil (Pará). Nyssodrys grisellaBates, 1864 (currently, Atrypanius grisellus) is synonymized with Lepturges lineatocollisBates, 1863 (currently, Atrypanius lineatocollis), and the species is recorded for ...
Antonio Santos-Silva
doaj   +1 more source

Future Trends in Nutrient Export to the Coastal Waters of South America: Implications for Occurrence of Eutrophication [PDF]

open access: yes, 2010
We analyze future trends in nutrient export to the coastal waters of South America, with a special focus on the causes of nutrient export and their potential effects.
Kroeze, C., Struijk, F.
core   +2 more sources

Detection of circulating tumor DNA in colorectal cancer patients using a methylation‐specific droplet digital PCR multiplex

open access: yesMolecular Oncology, EarlyView.
We developed a cost‐effective methylation‐specific droplet digital PCR multiplex assay containing tissue‐conserved and tumor‐specific methylation markers. The assay can detect circulating tumor DNA with high accuracy in patients with localized and metastatic colorectal cancer.
Luisa Matos do Canto   +8 more
wiley   +1 more source

Checklist of fossil decapod crustaceans from tropical America. Part I: Anomura and Brachyura

open access: yesNauplius, 2017
Our knowledge of fossil crustaceans from the tropics has increased considerably during recent decades, thanks to novel findings and the re-examination of museum specimens.
Javier Luque   +5 more
doaj   +1 more source

ATF4‐mediated stress response as a therapeutic vulnerability in chordoma

open access: yesMolecular Oncology, EarlyView.
We screened 5 chordoma cell lines against 100+ inhibitors of epigenetic and metabolic pathways and kinases and identified halofuginone, a tRNA synthetase inhibitor. Mechanistically halofuginone induces an integrated stress response, with eIF2alpha phosphorylation, activation of ATF4 and its target genes CHOP, ASNS, INHBE leading to cell death ...
Lucia Cottone   +11 more
wiley   +1 more source

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