Results 71 to 80 of about 3,421,347 (332)

Broad Line Region Physical Conditions along the Quasar Eigenvector 1 Sequence

, 2010
[Abridged] We compare broad emission line profiles and estimate line ratios for all major emission lines between Ly-alpha and H-beta in a sample of six quasars.
Bachev, Baldwin, Barthel, Bentz, Bon, Bonnell, Boroson, Brotherton, C. A. Negrete, Carswell, Collin, Collin-Souffrin, Collin-Souffrin, Collin-Souffrin, Corbin, Corbin, Corbin, D. Dultzin, Davidson, Denney, Eracleous, Eracleous, Espey, Ferland, Ferland, Ferland, Gaskell, Gaskell, Gaskell, Gaskell, Gezari, Gordon, Halpern, Halpern, Hamann, J. W. Sulentic, Johansson, Juarez, Korista, Korista, Kriss, Krongold, La Mura, Laor, Laor, Lauer, Marconi, Marziani, Marziani, Marziani, Marziani, Marziani, Marziani, Marziani, Marziani, Marziani, Mathews, Mathews, Mathur, Matsuoka, Matsuoka, Morris, Negrete, Netzer, Netzer, P. Marziani, Peterson, Peterson, Punsly, R. Bachev, Rafanelli, Richards, S. Zamfir, Sanders, Sani, Sargent, Schlegel, Shang, Shapovalova, Shemmer, Shields, Small, Snedden, Strateva, Sulentic, Sulentic, Sulentic, Sulentic, Sulentic, Sulentic, Sulentic, Sulentic, Sulentic, Sulentic, Turler, Tytler, Vanden Berk, Vestergaard, Vestergaard, Wang, Wang, Wilkes, Wills, Young, Zamfir, Zamfir, Zhang, Zheng   +107 more
core   +1 more source

Does functional soil microbial diversity contribute to explain within-site plant beta-diversity in an alpine grassland and a dehesa meadow in Spain? [PDF]

, 2017
Questions: Once that the effects of hydrological and chemical soil properties have been accounted for, does soil microbial diversity contribute to explain change in plant community structure (i.e. within-site beta-diversity)?
Araya, Yoseph N., Bartelheimer, Maik, Crujeiras, Rosa M., García-Baquero, Gonzalo, Valle, Cipriano J.   +4 more
core   +2 more sources

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

FEBS 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, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

Unimodal Relationships of Understory Alpha and Beta Diversity along Chronosequence in Coppiced and Unmanaged Beech Forests

Diversity, 2020
Patterns of diversity across spatial scales in forest successions are being overlooked, despite their importance for developing sustainable management practices. Here, we tested the recently proposed U-shaped biodiversity model of forest succession.
S. Bartha, R. Canullo, S. Chelli, G. Campetella   +3 more
semanticscholar   +1 more source

Habitat filtering determines spatial variation of macroinvertebrate community traits in northern headwater streams [PDF]

, 2013
Although our knowledge of the spatial distribution of stream organisms has been increasing rapidly in the last decades, there is still little consensus about trait-based variability of macroinvertebrate communities within and between catchments in near ...
Allan JD, Anderson M J, Anderson M J, Anderson M J, Beche L A, Begon M, Boyero L, Chevenet F, Clarke A, D. Schmera, Devictor V, Doledec S, Erős T, Erős T, Giller PS, Gotelli N J, Hart D D, Hawkins C P, Heck K L, Heino J, Heino J, Heino J, Heino J, Heino J, Heino J, Heino J, Hoeinghaus D J, Hurlbert S H, J. Heino, Koleff P, Lennon J J, Li J, Malmqvist B, McCune M, Mykrä H, Oksanen J, Palmer M A, Podani J, Podani J, Poff N L, Poff NL, Pollard A I, Ricotta C, Schmera D, Schmera D, Schmera D, Simpson G G, Southwood T R E, Statzner B, Statzner B, Statzner B, Statzner B, T. Erős, Tachet H, Townsend C R, Townsend C R, Townsend C R, Usseglio-Polatera P, Ward J V   +58 more
core   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Partitioning beta diversity of dry and hot valley vegetation in the Nujiang River in Southwest China

Frontiers in Ecology and Evolution, 2023
The formation and continued maintenance of beta diversity are essential factors contributing to the effective conservation of plant community biodiversity and sustainable development of ecosystem functions.
Ziqing Zhao, Ziqing Zhao, Liping He, Liping He, Liping He, Guixiang Li, Guixiang Li, Guixiang Li, Saiyu Ma, Saiyu Ma, Saiyu Ma, Ming Cui, Ming Cui, Yuguo Liu, Yuguo Liu, Yong Chai, Yong Chai, Yong Chai   +17 more
doaj   +1 more source

Soil microbial beta-diversity is linked with compositional variation in aboveground plant biomass in a semi-arid grassland [PDF]

, 2017
Background and aims: Exploring biodiversity linkages between aboveground and belowground biota is a core topic in ecology, and can have implications on our understanding of ecosystem process stability. Yet, this topic still remains underexplored.
Deng, Y, He, Z, Jiang, Y, Li, H, Van Nostrand, JD, Wang, Z, Xu, Z, Yan, Q, Yang, S, Zhou, J   +9 more
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Relationships between functional alpha and beta diversities of flea parasites and their small mammalian hosts

Parasitology
We studied the relationships between functional alpha and beta diversities of fleas and their small mammalian hosts in 4 biogeographic realms (the Afrotropics, the Nearctic, the Neotropics and the Palearctic), considering 3 components of alpha diversity (
Boris R. Krasnov, Irina S. Khokhlova, M. Fernanda López Berrizbeitia, Sonja Matthee, Juliana P. Sanchez, Georgy I. Shenbrot, Luther van der Mescht   +6 more
doaj   +1 more source