Results 81 to 90 of about 949,782 (341)

Forest Stand Structure and Primary Production in relation to Ecosystem Development, Disturbance, and Canopy Composition [PDF]

open access: yes, 2016
Temperate forests are complex ecosystems that sequester carbon (C) in biomass. C storage is related to ecosystem-scale forest structure, changing over succession, disturbance, and with community composition.
Scheuermann, Cynthia M
core   +1 more source

Integration of circadian and hypoxia signaling via non‐canonical heterodimerization

open access: yesFEBS Letters, EarlyView.
CLOCK, BMAL1, and HIFs are basic helix‐loop‐helix and Per‐Arnt‐Sim domain (bHLH‐PAS) proteins, which function as transcription factors. bHLH‐PAS proteins are designated in two classes. Many class I proteins are regulated by environmental signals via their PAS domains, but such signals have not been identified for all.
Sicong Wang, Katja A. Lamia
wiley   +1 more source

Assessment of the effects of the dry period on the faunal composition of aquatic macroinvertebrate assemblages in two temporary ponds in NW Spain

open access: yesJournal of Limnology, 2014
Temporary ponds are habitats that undergo periods of drying and flooding. They have been neglected for many years and changes produced by climatic change will greatly affect them.
Amaia Pérez-Bilbao   +2 more
doaj   +1 more source

Presidential Succession Act of 2007 [PDF]

open access: yes, 2007
A proposed bill that modifies the presidential succession list to include, following the Secretary of Homeland Security, the Ambassador to the United Nations, the Ambassador to Great Britain, the Ambassador to Russia, the Ambassador to China, and the ...
United States. House of Representatives
core   +1 more source

Function‐driven design of a surrogate interleukin‐2 receptor ligand

open access: yesFEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang   +9 more
wiley   +1 more source

Effects of Spruce Budworm (Choristoneura fumiferana (Clem.)) Outbreaks on Boreal Mixed-Wood Bird Communities

open access: yesAvian Conservation and Ecology, 2009
This study examined the influence of a spruce budworm (Choristoneura fumiferana (Clem.)) outbreak on a boreal mixed-wood bird community in forest stands ranging in age from 0 to 223 yr.
Lisa A. Venier   +4 more
doaj   +1 more source

Presidential Inability and Vacanies in the Office of the Vice President [PDF]

open access: yes, 1965
Congressional conference report on the inability and succession of the Vice President.https://ir.lawnet.fordham.edu/twentyfifth_amendment_congressional_materials/1022/thumbnail ...
House of Representatives. United States
core   +1 more source

Multiple ETS family transcription factors bind mutant p53 via distinct interaction regions

open access: yesFEBS Letters, EarlyView.
Mutant p53 gain‐of‐function is thought to be mediated by interaction with other transcription factors. We identify multiple ETS transcription factors that can bind mutant p53 and found that this interaction can be promoted by a PXXPP motif. ETS proteins that strongly bound mutant p53 were upregulated in ovarian cancer compared to ETS proteins that ...
Stephanie A. Metcalf   +6 more
wiley   +1 more source

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

Overview of the bird diversity in oak (Quercus spp.) forest habitats in Isparta province, southwestern Turkish Anatolia

open access: yesTurkish Journal of Forestry, 2018
Natural and semi-natural oak (Quercus spp.) forests in Turkey are rich ecosystems of high conservation value that are increasingly threatened by logging and transformation into coniferous plantations.
Adam BERGNER   +3 more
doaj   +1 more source

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