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See detailWavelike charge density fluctuations and van der Waals interactions at the nanoscale
Ambrosetti, Alberto; Ferri, Nicola; DiStasio Jr., Robert A. et al

in Science (2016), 351(6278), 1171-1176

Recent experiments on noncovalent interactions at the nanoscale have challenged the basic assumptions of commonly used particle- or fragment-based models for describing van der Waals (vdW) or dispersion ... [more ▼]

Recent experiments on noncovalent interactions at the nanoscale have challenged the basic assumptions of commonly used particle- or fragment-based models for describing van der Waals (vdW) or dispersion forces. We demonstrate that a qualitatively correct description of the vdW interactions between polarizable nanostructures over a wide range of finite distances can only be attained by accounting for the wavelike nature of charge density fluctuations. By considering a diverse set of materials and biological systems with markedly different dimensionalities, topologies, and polarizabilities, we find a visible enhancement in the nonlocality of the charge density response in the range of 10 to 20 nanometers. These collective wavelike fluctuations are responsible for the emergence of nontrivial modifications of the power laws that govern noncovalent interactions at the nanoscale. [less ▲]

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See detailReproducibility in density functional theory calculations of solids
Lejaeghere, K.; Bihlmayer, G.; Tkatchenko, Alexandre UL et al

in Science (2016), 351

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See detailIs low fertility really a problem? Population aging, dependency, and consumption
Lee, Ronald; Mason, Andrew; Olivera Angulo, Javier UL et al

in Science (2014), 346(6206), 229-234

Longer lives and fertility far below the replacement level of 2.1 births per woman are leading to rapid population aging in many countries. Many observers are concerned that aging will adversely affect ... [more ▼]

Longer lives and fertility far below the replacement level of 2.1 births per woman are leading to rapid population aging in many countries. Many observers are concerned that aging will adversely affect public finances and standards of living. Analysis of newly available National Transfer Accounts data for 40 countries shows that fertility well above replacement would typically be most beneficial for government budgets. However, fertility near replacement would be most beneficial for standards of living when the analysis includes the effects of age structure on families as well as governments. And fertility below replacement would maximize per capita consumption when the cost of providing capital for a growing labor force is taken into account. Although low fertility will indeed challenge government programs and very low fertility undermines living standards, we find that moderately low fertility and population decline favor the broader material standard of living. [less ▲]

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See detailImportance de la langue maternelle pour le development des enfants au Luxembourg
Aleksic, Gabrijela UL

Article for general public (2013)

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See detailThe Arabidopsis circadian clock incorporates a cADPR-based feedback loop
Dodd, A. N.; Gardner, M. J.; Hotta, C. T. et al

in SCIENCE (2007), 318(5857), 1789-1792

Transcriptional feedback loops are a feature of circadian clocks in both animals and plants. We show that the plant circadian clock also incorporates the cytosolic signaling molecule cyclic adenosine ... [more ▼]

Transcriptional feedback loops are a feature of circadian clocks in both animals and plants. We show that the plant circadian clock also incorporates the cytosolic signaling molecule cyclic adenosine diphosphate ribose (cADPR). cADPR modulates the circadian oscillator’s transcriptional feedback loops and drives circadian oscillations of Ca2+ release. The effects of antagonists of cADPR signaling, manipulation of cADPR synthesis, and mathematical simulation of the interaction of cADPR with the circadian clock indicate that cADPR forms a feedback loop within the plant circadian clock. [less ▲]

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See detailSequence interpretation. Functional annotation of mouse genome sequences.
Nadeau, J. H.; Balling, Rudi UL; Barsh, G. et al

in Science (2001), 291(5507), 1251-5

Detailed reference viewed: 74 (6 UL)