169,912 research outputs found
The use of lepidochronology as a tool of analysis of dynamic features of the seagrass Posidonia oceanica of the Adriatic Sea
No full text
The Evolution of Incentives for Retirement in Italy, 1980–2015
No full textThe aim of this chapter is to explore and try to explain the increases in older
Italian men and women’s labor force participation (LFP) and employment
over the past 20 years. This is a general pattern, common to most developed
countries around the world, and many factors may have contributed to the
recent increases in LFP and employment. These include changes in social security
and disability insurance (DI) incentives, improving health and longevity,
increasing education, a shift toward less physically demanding jobs, and rising
female LFP (combined with the desire for joint retirement among couples)
Proline geometries of the BuIA isomers and the sunflower trypsin inhibitor SFTI-1 26
No full text<p><b>Copyright information:</b></p><p>Taken from "Structure of α-conotoxin BuIA: influences of disulfide connectivity on structural dynamics"</p><p>http://www.biomedcentral.com/1472-6807/7/28</p><p>BMC Structural Biology 2007;7():28-28.</p><p>Published online 20 Apr 2007</p><p>PMCID:PMC1865545.</p><p></p> The proline residues with geometry are marked as t and those with as c. The three-dimensional structures of a classic α-conotoxin, ribbon BuIA and SFTI-1 are shown to highlight the structural differences between the various peptides
Adverse childhood experiences and unhealthy lifestyles later in life: evidence from SHARE countries
No full textThis paper investigates whether exposure to adverse experiences during childhood, such as physical and emotional abuse, affects the likelihood of unhealthy habits later in life. The novelty of our approach is twofold. First, we exploit the recently published data on adverse childhood experiences in 19 European countries from the Survey of Health, Ageing and Retirement (SHARE), which enables us to account for country-specific heterogeneity and investigate the long-term effects of exposure to adverse early-life circumstances (such as smoking, drinking, excess weight and obesity) on unhealthy lifestyles later in life. Second, we estimate the effect of childhood trauma on unhealthy lifestyles separately for European macro-regions using a clustering of countries emphasising cultural differences. Our results highlight the positive effect of exposure to adverse childhood experiences on the probability of unhealthy lifestyles in the long run. Harm from parents is associated with a higher probability of smoking in adulthood, while child neglect and a poor relationship with parents increase the probability of smoking later in life
Long-term response of Dictyota dichotoma var. intricata (C. Agardh) Greville (Phaeophyceae) to ocean acidification: Insights from high pCO2 vents
No full textThe ocean acidification may severely affect macroalgal communities of the shallowest coastal habitats where they play relevant structural and functional roles. In this paper were investigated the physiological traits of two populations of Dictyota dichotoma var. intricata, living at two different pH for several generations to assess the reasons of the algae reduced abundance at current (8.1) compared to low pH (6.7). Besides, through transplant experiments, the two populations were analysed for the stress response and reversibility of physiological performance at different pH. The long-term acclimation to high pCO(2)/low pH favours an ecotype characterised by low energetic costs, higher photochemical efficiency and more resistance to the oxidative stress, compared to individuals living at current pH. These traits promoted the growth and reproduction of the community living at pH 6.7, favouring a lower macroalgal diversity, but a higher ecological success under ocean acidification. The similar behaviour observed between Dictyota living at pH 6.7 and transplanted thalli from pH 6.7 to 8.1, suggested a high tolerance to pH changes in the short-term. On the contrary, adaptive responses may have favoured molecular adjustments on the long-term, as showed by the significant differences between the wild populations at pH 8.1 and 6.7. The overall data indicate that both plasticity and adaptive mechanisms may be the reasons for the success of the brown seaweeds under future high pCO(2)/lowpH. The plasticity due to photochemistry adjustments is likely involved in the early response to environmental changes. Conversely, modifications in the photosynthetic biochemical machinery suggest that more complex adaptive mechanisms occurred in the current population of Dictyota living at pH 6.7. Further studies on population genetics will reveal if any differentiation is taking place at the population level or a local adaptation has already occurred in Dictyota and other brown algae under chronic low pH
α-Ctx MII[H9A,L15A] and BuIA[T5A,P6O] potently inhibit the ACh-evoked currents in monkey chromaffin cells.
No full text<p>A, Representative trace recordings of ACh-evoked currents and the inhibition by 100 nM and 1 μM MII[H9A,L15A]. B, Quantitative analysis of the inhibition by 100 nM (n = 5) and 1 μM MII[H9A,L15A] (n = 4). Error bars show average values ± S.E.M (n = 5); asterisks denote statistical significance (***<i>p</i><0.001) as determined by a one sample t-test. C,D, Trace recordings of ACh-evoked currents and the inhibition by 100 nM and 1 μM BuIA[T5A,P6O]. E, Quantitative analysis of the inhibition by 100 nM (n = 2) and 1 μM BuIA[T5A,P6O] (n = 4); error bars show average values ± S.E.M.</p
Temporal dynamics and biomass partitioning in three Adriatic seagrass species: Posidonia oceanica, Cymodocea nodosa, Zostera marina
No full textThe Effect of Retirement Incentives: Microevidence for Italy
No full textThe recent demographic trends of fast population ageing have challenged the sustainability of the public pension systems in most industrialized countries. We attempt to explain the retirement behavior of older Italians over the
past twenty years in relation to dynamic financial incentives and other potential determinants of labor force participation. The results indicate that pension reforms in Italy had an impact in raising effective retirement age by restricting access to financially advantageous public pension schemes
- …
