Results 61 to 70 of about 5,253,879 (330)

Ecología química y perspectivas de su aplicación en la conservación de la biodiversidad [PDF]

open access: yes, 2013
Chemical ecology comprises the study of interactions of organisms with their environment that are mediated by the chemicals they produced. In general, chemicals that mediate interactions between organisms are called semiochemicals.
Cortez, Vieyle
core   +1 more source

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

open access: yesFEBS Open Bio, EarlyView.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke   +4 more
wiley   +1 more source

A challenge for a male noctuid moth? Discerning the female sex pheromone against the background of plant volatiles

open access: yesFrontiers in Physiology, 2016
Finding a partner is an essential task for members of all species. Like many insects, females of the noctuid moth Heliothis virescens release chemical cues consisting of a species-specific pheromone blend to attract conspecific males.
Elisa eBadeke   +3 more
doaj   +1 more source

New Synthesis—Systems Chemical Ecology [PDF]

open access: yesJournal of Chemical Ecology, 2011
Secondary metabolites are enigmatic in terms of costs and benefits for their producers and how their ontogenetic accumulation or timely induction affects the evolution of single species and co-evolution of interacting species. More than 50 years ago, Gottfried Fraenkel dispelled the notion of secondary metabolites as waste products: “Thus, the animal ...
Hadacek, Franz, Chobot, Vladimir
openaire   +2 more sources

Air Pollution and the Risk and Progression of Multiple Sclerosis: A Systematic Review and Meta‐Analysis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Purpose Air pollution has been linked to several neurological conditions, including stroke and neurodegenerative diseases. Evidence regarding its association with multiple sclerosis (MS) remains conflicting, limited by small sample sizes. Methods PubMed, Embase, Scopus, and Cochrane controlled register of trials (CENTRAL) were searched on ...
Ahmad A. Toubasi, Thuraya N. Al‐Sayegh
wiley   +1 more source

Temporal response dynamics of Drosophila olfactory sensory neurons depends on receptor type and response polarity

open access: yesFrontiers in Cellular Neuroscience, 2012
Insect olfactory sensory neurons (OSN) express a diverse array of receptors from different protein families i.e. ionotropic receptors (IR), gustatory receptors (GR) and odorant receptors (OR).
Merid Negash Getahun   +3 more
doaj   +1 more source

Advisory report on nutrient levels and related ecology of Malham Tarn [PDF]

open access: yes, 1982
Aspects of reported nutrient levels and their ecological implications for Malham Tarn are discussed. Discussion centres upon the data given here as appendices, involving possible evidence of a long-term increase in the concentrations of some nutrients ...
Hilton, J., Talling, J.F.
core  

Is Young's Modulus a Critical Coating Property Determining Fouling‐Release Performance of Marine Coatings?

open access: yesAdvanced Engineering Materials, EarlyView.
The release of foulers from protective marine coatings is determined by several interrelated material properties, including the strength of Young's modulus, the flexibility of chain segments, the surface free energy, and the magnitude of hydrodynamic stress.
Johann C. Schaal   +2 more
wiley   +1 more source

Dimerisation of the Drosophila odorant co-receptor Orco

open access: yesFrontiers in Cellular Neuroscience, 2014
Odorant receptors (ORs) detect volatile molecules and transform this external information into an intracellular signal. Insect ORs are heteromers composed of two seven transmembrane proteins, an odor-specific OrX and a coreceptor (Orco) protein.
Latha eMukunda   +3 more
doaj   +1 more source

Africa: the FBA connection [PDF]

open access: yes, 1986
Since its inception in the 1930's the Freshwater Biological Association at Windermere, England has been involved in research on African lakes and rivers.
Fryer, G., Talling, J.F.
core  

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