Results 61 to 70 of about 949,782 (341)
Botanical Sciences, 2019 Background: Several studies have called attention to beech forest conservation and restoration in Mexico. Human activities (e.g., logging and grazing) have perturbed the few beech forests that persist in the Sierra Madre Oriental, Mexico. However, basic
Karina Calva-Soto +4 more
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Introduction: The Adequacy of the Presidential Succession System in the 21st Century: Filling the Gaps and Clarifying the Ambiguities in Constitutional and Extraconstitutional Arrangements [PDF]
, 2010 Inevitably, the events of the day dominate the political agenda. The issues of presidential succession have been attended to in our national history only sporadically because, at most times, the question of who succeeds the President in cases of death ...
Treanor, William Michael
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By dawn or dusk—how circadian timing rewrites bacterial infection outcomes
FEBS Letters, EarlyView.The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo +2 more
wiley +1 more source
Revista Facultad de Ingeniería Universidad de Antioquia, 2006 Variation in seasonal nitrogen/phosphorus ratio and phytoplankton community succession were compared between March and November 1997 in a lake directly connected to the Main River and in another lake without direct connection.
Néstor Aguirre +2 more
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Dispersal and establishment both limit colonization during primary succession on a glacier foreland [PDF]
, 2009 Plant colonization can be limited by lack of seeds or by factors that reduce establishment. The role of seed limitation in community assembly is being increasingly recognized, but in early primary succession, establishment failure is still considered ...
del Moral, Roger, Jones, Chad C.
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Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?
FEBS Letters, EarlyView.This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes +3 more
wiley +1 more source
Ruderal succession starting at different seasons
Acta Societatis Botanicorum Poloniae, 2014 Succession experiments were carried out in 1 m2 sized plots on three different soils (S = sand. SCL = silty clayey loam, CL = clayey loam). Vegetation was allowed to grow for 9 years, starting at different dates between 18.06.1969 and 1.04.1971.
Reinhard Bornkamm
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Molecular bases of circadian magnesium rhythms across eukaryotes
FEBS Letters, EarlyView.Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley +1 more source
Assemblages of Collembola across a 130-year chronosequence of beech forest
Soil Organisms, 2011 Although microarthropods dominate forest floor faunas in both diversity and abundance, long-term aspects of forest cycles have been widely neglected in soil ecological research in the past.
Matthieu Chauvat +4 more
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Ecology and EvolutionForest restoration is an essential tool for conserving biodiversity in tropical regions; yet, restoration outcomes in the Afrotropics remain largely understudied.
Eveliina Korkiatupa +5 more
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