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17,935 Newest Publications in proceedings of the national academy of sciences current issue

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matching the following criteria

Identification of a triplet pair intermediate in singlet exciton fission in solution [Chemistry]

23-Jun-2015 | Hannah L. Stern; Andrew J. Musser; Simon Gelinas; Patrick Parkinson; Laura M. Herz; Matthew J. Bruzek; John Anthony; ..., Proceedings of the National Academy of Sciences current issue, 2015

Singlet exciton fission is the spin-conserving transformation of one spin-singlet exciton into two spin-triplet excitons. This exciton multiplication mechanism offers an attractive route to solar cells that circumvent the single-junction Shockley–Queisser limit. Most theoretical descriptions of ...

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Empirical inference of circuitry and plasticity in a kinase signaling network [Biochemistry]

23-Jun-2015 | Edmund H. Wilkes; Camille Terfve; John G. Gribben; Julio Saez-Rodriguez; Pedro Rodriguez Cutillas, Proceedings of the National Academy of Sciences current issue, 2015

Our understanding of physiology and disease is hampered by the difficulty of measuring the circuitry and plasticity of signaling networks that regulate cell biology, and how these relate to phenotypes. Here, using mass spectrometry-based phosphoproteomics, we systematically characterized the ...

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Core Concept: Ecosystem services [Core Concepts]

16-Jun-2015 | Amy West, Proceedings of the National Academy of Sciences current issue, 2015

If one were to build a healthy biosphere from scratch on another planet, what kinds of ecosystems and combinations of species would be necessary to support humans? This is the thought experiment that ecologist Gretchen Daily, a Bing professor at Stanford University, poses to illustrate the ...

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Body composition in Pan paniscus compared with Homo sapiens has implications for changes during human evolution [Anthropology]

16-Jun-2015 | Adrienne L. Zihlman; Debra R. Bolter, Proceedings of the National Academy of Sciences current issue, 2015

The human body has been shaped by natural selection during the past 4–5 million years. Fossils preserve bones and teeth but lack muscle, skin, fat, and organs. To understand the evolution of the human form, information about both soft and hard tissues of our ancestors is needed. Our closest ...

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QnAs with Jane Lubchenco [QnAs]

16-Jun-2015 | Paul Gabrielsen, Proceedings of the National Academy of Sciences current issue, 2015

As the first marine ecologist to serve as administrator of the National Oceanic and Atmospheric Administration (NOAA), from 2009 to 2013, Jane Lubchenco found that communicating in the political atmosphere of Washington, DC often required the same attention to subtle cues and environmental ...

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Impacts of conservation and human development policy across stakeholders and scales [Sustainability Science]

16-Jun-2015 | Cong Li; Hua Zheng; Shuzhuo Li; Xiaoshu Chen; Jie Li; Weihong Zeng; Yicheng Liang; Stephen Polasky; Marcus W. Feldma ..., Proceedings of the National Academy of Sciences current issue, 2015

Ideally, both ecosystem service and human development policies should improve human well-being through the conservation of ecosystems that provide valuable services. However, program costs and benefits to multiple stakeholders, and how they change through time, are rarely carefully analyzed. We ...

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Asymptomatic spread of huanglongbing and implications for disease control [Plant Biology]

16-Jun-2015 | Jo Ann Lee; Susan E. Halbert; William O. Dawson; Cecile J. Robertson; James E. Keesling; Burton H. Singer, Proceedings of the National Academy of Sciences current issue, 2015

Huanglongbing (HLB) is a bacterial infection of citrus trees transmitted by the Asian citrus psyllid Diaphorina citri. Mitigation of HLB has focused on spraying of insecticides to reduce the psyllid population and removal of trees when they first show symptoms of the disease. These interventions ...

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Embedding ecosystem services in coastal planning leads to better outcomes for people and nature [Sustainability Science]

16-Jun-2015 | Katie K. Arkema; Gregory M. Verutes; Spencer A. Wood; Chantalle Clarke-Samuels; Samir Rosado; Maritza Canto; Amy Ros ..., Proceedings of the National Academy of Sciences current issue, 2015

Recent calls for ocean planning envision informed management of social and ecological systems to sustain delivery of ecosystem services to people. However, until now, no coastal and marine planning process has applied an ecosystem-services framework to understand how human activities affect the ...

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Group discussion improves lie detection [Psychological and Cognitive Sciences]

16-Jun-2015 | Nadav Klein; Nicholas Epley, Proceedings of the National Academy of Sciences current issue, 2015

Groups of individuals can sometimes make more accurate judgments than the average individual could make alone. We tested whether this group advantage extends to lie detection, an exceptionally challenging judgment with accuracy rates rarely exceeding chance. In four experiments, we find that ...

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Algorithmic lattice kirigami: A route to pluripotent materials [Physics]

16-Jun-2015 | Daniel M. Sussman; Yigil Cho; Toen Castle; Xingting Gong; Euiyeon Jung; Shu Yang; Randall D. Kamien, Proceedings of the National Academy of Sciences current issue, 2015

We use a regular arrangement of kirigami elements to demonstrate an inverse design paradigm for folding a flat surface into complex target configurations. We first present a scheme using arrays of disclination defect pairs on the dual to the honeycomb lattice; by arranging these defect pairs ...

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