Results 51 to 60 of about 244,175 (304)

Temperature-dependent regulation of sperm motility of Ijima's copper pheasants (Syrmaticus soemmerringii ijimae), one of ‘near threatened’ species

open access: yesAnimal Reproduction Science, 2010
In order to conserve the copper pheasants, one of the Japanese 'near threatened' species, the knowledge of the sperm characteristics is the inevitable issue. Therefore, temperature-dependent regulation of copper pheasant sperm motility was investigated in comparison with that of domestic fowl spermatozoa.
Koji, Ashizawa   +7 more
openaire   +3 more sources

An analysis of Nigerian freshwater fishes: those under threat and conservation options [PDF]

open access: yes, 2005
The study assessed qualitatively the threat status of all nigerian freshwater fishes using such criteria as rarity, size at maturity, mode of reproduction, human population density, habitat degradation, pollution and range of each species among others ...
Bankole, N.O., Olaosebikan, B.D.
core  

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

The state of Nepal birds 2010

open access: yesJournal of Threatened Taxa, 2013
The national status of Nepal birds was determined using the IUCN Red List criteria and following IUCN regional guidelines. Records of all species identified as potentially at high risk were extracted from all relevant references in a comprehensive, up ...
C. Inskipp   +3 more
doaj   +1 more source

Distribution, habitat preferences and population sizes of two threatened tree ferns, Cyathea cunninghamii and Cyathea x marcescens, in south-eastern Australia [PDF]

open access: yes, 2013
The distribution, population sizes and habitat preferences of the rare tree ferns Cyathea cunninghamii Hook.f. (Slender Tree Fern) and F1 hybrid Cyathea x marcescens N.A.Wakef.
Brownsey, Patrick   +3 more
core   +1 more source

Field studies of seahorse population density, structure and habitat use in a semi-closed north-eastern Mediterranean marine area (Stratoni, north Aegean Sea) [PDF]

open access: yes, 2020
The present study was carried out in the marine area of Stratoni, Greece, where two seahorse species are present (Hippocampus hippocampus and H. guttulatus).
Correia, Miguel   +5 more
core   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Fishes from Parque Estadual de Itapeva, Rio Grande do Sul state, Atlantic Forest biome, Brazil [PDF]

open access: yesCheck List, 2016
The ichthyofauna herein presented was collected in streams, lake, and swamps from the Parque Estadual de Itapeva, Rio Mampituba basin. The protected area is located in the northernmost part of the coastal plain of Rio Grande do Sul state.
Marco Azevedo, Vinicius Bertaco
doaj   +3 more sources

Rare or threatened vascular plant species of Wollemi National Park, central eastern New South Wales [PDF]

open access: yes, 2013
Wollemi National Park (c. 32o 20’– 33o 30’S, 150o– 151oE), approximately 100 km north-west of Sydney, conserves over 500 000 ha of the Triassic sandstone environments of the Central Coast and Tablelands of New South Wales, and occupies approximately 25 ...
Bell, Stephen A. J.
core  

Dapagliflozin prevents methylglyoxal‐induced retinal cell death in ARPE‐19 cells

open access: yesFEBS Open Bio, EarlyView.
Diabetic macular oedema is a diabetes complication of the eye, which may lead to permanent blindness. ARPE‐19 are human retinal cells used to study retinal diseases and potential therapeutics. Methylglyoxal is a compound increased in uncontrolled diabetes due to elevated blood glucose.
Naina Trivedi   +7 more
wiley   +1 more source

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