Search results for "Moonlight"
showing 8 items of 8 documents
Bases moleculares de la actividad señalizadora de dUTPasas
2016
Tesis doctoral: 356 páginas
Seabird migration strategies: Flight budgets, diel activity patterns and lunar influence
2021
Every year, billions of birds undertake extensive migrations between breeding and nonbreeding areas, facing challenges that require behavioural adjustments, particularly to flight timing and duration. Such adjustments in daily activity patterns and the influence of extrinsic factors (e.g., environmental conditions, moonlight) have received much more research attention in terrestrial than marine migrants. Taking advantage of the widespread deployment in recent decades of combined light-level geolocator-immersion loggers, we investigated diel organisation and influence of the moon on flight activities during the non-breeding season of 21 migrant seabird species from a wide taxonomic range (6 …
Two light sensors decode moonlight versus sunlight to adjust a plastic circadian/circalunidian clock to moon phase
2021
AbstractMany species synchronize their physiology and behavior to specific hours. It is commonly assumed that sunlight acts as the main entrainment signal for ~24h clocks. However, the moon provides similarly regular time information, and increasingly studies report correlations between diel behavior and lunidian cycles. Yet, mechanistic insight into the possible influences of the moon on ~24hr timers is scarce.We studiedPlatynereis dumeriliiand uncover that the moon, besides its role in monthly timing, also schedules the exact hour of nocturnal swarming onset to the nights’ darkest times. Moonlight adjusts a plastic clock, exhibiting <24h (moonlit) or >24h (no moon) periodicity. Abun…
Estudios estructurales y funcionales de dUTPasas, una amplia familia de enzimas metabólicas con funciones reguladoras
2023
El dUTP es el nucleótido no canónico mayoritario en la célula. Su errónea incorporación en el ADN dispara los sistemas de reparación, los cuales pueden causar la muerte celular por una actuación ininterrumpida. Con el objetivo de prevenir esta situación, y conocida la incapacidad de las ADN polimerasas de distinguir entre el dTTP y el dUTP, las células poseen las proteínas dUTPasas (Duts), capaces de degradar este nucleótido no canónico y, en consecuencia, aumentar la ratio dTTP/dUTP en el pool de nucleótidos celular. A parte de la hidrólisis del dUTP, las Duts poseen otras funciones moonlighting, entre las cuales destaca la capacidad de Duts de fagos de Staphylococcus aureus de interaccion…
Will they, won’t they? Dream sequences and virtual consummation in the series Moonlighting
2021
The 1980s series Moonlighting was one of the first dramedies on the small screen; it took its cue from venerable genres like the screwball comedy or the hard-boiled novel (particularly The Thin Man) and translated them to television’s changing structures and aesthetics, participating in what has been termed the second Golden Age of television. However, the Nick and Norah Charles of Moonlighting, David and Maddie, were not married: on the contrary, the series was largely fuelled by the tension between the two leads, who were constantly sparring but were seemingly drawn to one another. Though this romantic tension has long been a staple of the silver screen, translating it into weekly episode…
Wine yeast peroxiredoxin TSA1 plays a role in growth, stress response and trehalose metabolism in biomass propagation
2020
This article belongs to the Special Issue Wine Yeast 1.0.
Conflicts between touristic recreational activities and breeding shearwaters: short-term effect of artificial light and sound on chick weight
2018
Human disturbances are increasingly becoming a conservation concern for many populations of colonial seabirds. Colonially reproducing species are particularly vulnerable to localised disturbances because detrimental elements can simultaneously affect the entire population. Studies of petrels and shearwaters have shown that light pollution, in particular, can be harmful for both fledglings and adults, but little is known of the way such anthropogenic elements affect the quality of parental care at the nest. Chick provisioning in petrels and shearwaters occurs exclusively at night and is also negatively correlated with the amount of moonlight. We tested the hypothesis that high-intensity ligh…
Dynamical model identification of population of oysters for water quality monitoring
2014
International audience; The measurements of valve activity in a population of bivalves under natural environmental conditions (16 oysters in the Bay of Arcachon, France) are used for a physiological model identification. A nonlinear auto-regressive exogenous (NARX) model is designed and tested. The model takes into account the influence of environmental conditions using measurements of the sunlight intensity, the moonlight and tide levels. A possible influence of the internal circadian/circatidal clocks is also analyzed. Through this application, it is demonstrated that the developed dynamical model can be used for estimation of the normal physiological rhythms of permanently immersed oyste…