Results 101 to 110 of about 3,377,050 (374)

Effects of species traits, motif profiles, and environment on spatial variation in multi‐trophic antagonistic networks

Ecosphere, 2020
Understanding drivers of antagonistic interactions across temporal and spatial scales is important for predicting community structure. In particular, studies examining spatial variation in ecological networks are critical for anticipating community ...
Anne M. McLeod, Shawn J. Leroux, Cindy Chu   +2 more
doaj   +1 more source

Oxygen Gas Phase Abundance Revisited

, 2003
We present new measurements of the interstellar gas-phase oxygen abundance along the sight lines towards 19 early-type galactic stars at an average distance of 2.6 kpc.
A. Lecavelier des Etangs, A. Vidal‐Madjar, Abgrall H., Abgrall H., Biemont E., C. M. Oliveira, Catanzaro G., Comeron F., G. Hebrard, H. W. Moos, Hong S. S., J. C. Howk, J.‐M. Desert, Keenan F. P., M. K. Andre, R. Ferlet, Roy J.-R., S. Lacour   +17 more
core   +3 more sources

Long period variables and mass loss in the globular clusters NGC 362 and NGC 2808 [PDF]

, 2011
The pulsation periods of long period variables (LPVs) depend on their mass and helium abundance as well as on their luminosity and metal abundance. Comparison of the observed periods of LPVs in globular clusters with models is capable of revealing the ...
Lebzelter, Thomas, Wood, Peter
core   +2 more sources

Worldwide distribution and abundance of microplastic: How dire is the situation?

Waste Management Research, 2018
The widespread occurrence of microplastic has invaded the environment to an extent that it appears to be present throughout the globe. This review investigated the global abundance and distribution of microplastics in marine and freshwater ecosystems ...
Fauziah Shahul Hamid, Mehran Sanam Bhatti, Norkhairiyah Anuar, Norkhairah Anuar, P. Mohan, Agamuthu Periathamby   +5 more
semanticscholar   +1 more source

Autophagy in cancer and protein conformational disorders

FEBS Letters, EarlyView.
Autophagy plays a crucial role in numerous biological processes, including protein and organelle quality control, development, immunity, and metabolism. Hence, dysregulation or mutations in autophagy‐related genes have been implicated in a wide range of human diseases.
Sergio Attanasio
wiley   +1 more source

Helminth communities in three sympatric rodents from the Brazilian Atlantic Forest: contrasting biomass and numerical abundance

Brazilian Journal of Biology
The study of parasite body size is an important approach to understand the different patterns of helminth community structure, once it is usually analysed using only numerical descriptors which do not capture size heterogeneity among parasite species. In
RO. Simões, A. Maldonado-Júnior, JL. Luque   +2 more
doaj   +1 more source

Use of Multiple Methods to Estimate Walrus (Odobenus rosmarus rosmarus) Abundance in the Penny Strait-Lancaster Sound and West Jones Sound Stocks, Canada

NAMMCO Scientific Publications, 2014
Surveys to estimate walrus abundance at terrestrial haulout sites in the Penny Strait-Lancaster Sound (PS-LS) and West Jones Sound (WJS) stocks were conducted in 1977 and 1998-2009. The Minimum Counted Population (MCP) was similar in 1977 (565) to recent
Robert EA Stewart, Erik W Born, J Blair Dunn, William R Koski, Anna K Ryan   +4 more
doaj   +1 more source

Low dietary fiber intake increases Collinsella abundance in the gut microbiota of overweight and obese pregnant women

Gut microbes, 2018
The gut microbiota contributes to the regulation of glucose metabolism in pregnancy. Abundance of the genus Collinsella is positively correlated with circulating insulin; however, it is unclear what determines Collinsella abundance.
Luisa F. Gómez-Arango, Helen L Barrett, Shelley A. Wilkinson, Leonie K. Callaway, H. D. McIntyre, M. Morrison, M. Dekker Nitert   +6 more
semanticscholar   +1 more source

Protonophore activity of short‐chain fatty acids induces their intracellular accumulation and acidification

FEBS Letters, EarlyView.
The protonated form of butyrate, as well as other short‐chain fatty acids (SCFAs), is membrane permeable. In acidic extracellular environments, this can lead to intracellular accumulation of SCFAs and cytosolic acidification. This phenomenon will be particularly relevant in acidic environments such as the large intestine or tumor microenvironments ...
Muwei Jiang, Frans Bianchi, Geert van den Bogaart   +2 more
wiley   +1 more source

Helmintos gastrointestinales en aves acuáticas de la subcuenca alta del río Lerma, México Gastrointestinal helminth in waterfowl of the upper Lerma river sub-basin, Mexico

Revista Mexicana de Biodiversidad, 2012
Se realizó un inventario y se calcularon los parámetros de infección de los helmintos gastrointestinales de 36 ejemplares de aves acuáticas pertenecientes a las familias Anatidae, Rallidae y Threskiornithidae, procedentes de la subcuenca alta del río ...
Marcela Martínez-Haro, Petra Sánchez-Nava, Guillermo Salgado-Maldonado, Felipe de Jesús Rodríguez-Romero   +3 more
doaj