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2012 2016
Created Date: 2015-09-01
Contributors: Dubie, Norman

Created Date: 2015-09-01
Contributors: Dubie, Norman

Created Date: 2015-09-01
Contributors: Dubie, Norman

Created Date: 2015-09-01
Contributors: Dubie, Norman

Created Date: 2015-09-01
Contributors: Dubie, Norman

Created Date: 2015-09-01
Contributors: Dubie, Norman

Created Date: 2014-07-21
Contributors: Hill, Kim, Wood, Brian M., Baggio, Jacopo, et al.
Description: Our species exhibits spectacular success due to cumulative culture. While cognitive evolution of social learning mechanisms may be partially responsible for adaptive human culture, features of early human social structure may also play a role by increasing the number potential models from which to learn innovations. We present interview data on interactions between same-sex adult dyads of Ache and Hadza hunter-gatherers living in multiple distinct residential bands (20 Ache bands; 42 Hadza bands; 1201 dyads) throughout a tribal home range. Results show high probabilities (5%–29% per year) of cultural and cooperative interactions between randomly chosen adults. Multiple regression suggests that ...

Created Date: 2014-07-01
Contributors: Sun, Wenqing, Zheng, Bin, Lure, Fleming, et al.
Description: Asymmetry of bilateral mammographic tissue density and patterns is a potentially strong indicator of having or developing breast abnormalities or early cancers. The purpose of this study is to design and test the global asymmetry features from bilateral mammograms to predict the near-term risk of women developing detectable high risk breast lesions or cancer in the next sequential screening mammography examination. The image dataset includes mammograms acquired from 90 women who underwent routine screening examinations, all interpreted as negative and not recalled by the radiologists during the original screening procedures. A computerized breast cancer risk analysis scheme using four image ...

Created Date: 2014-11-12
Contributors: Zhao, Zhidan, Huang, Zi-Gang, Huang, Liang, et al.
Description: Understanding the dynamics of human movements is key to issues of significant current interest such as behavioral prediction, recommendation, and control of epidemic spreading. We collect and analyze big data sets of human movements in both cyberspace (through browsing of websites) and physical space (through mobile towers) and find a superlinear scaling relation between the mean frequency of visit〈f〉and its fluctuation σ : σ ∼〈f⟩[superscript β] with β ≈ 1.2. The probability distribution of the visiting frequency is found to be a stretched exponential function. We develop a model incorporating two essential ingredients, preferential return and exploration, and show that ...

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Created Date: 2014-09-11
Contributors: Kupitz, Christopher, Basu, Shibom, Grotjohann, Ingo, et al.
Description: Photosynthesis, a process catalysed by plants, algae and cyanobacteria converts sunlight to energy thus sustaining all higher life on Earth. Two large membrane protein complexes, photosystem I and II (PSI and PSII), act in series to catalyse the light-driven reactions in photosynthesis. PSII catalyses the light-driven water splitting process, which maintains the Earth’s oxygenic atmosphere. In this process, the oxygen-evolving complex (OEC) of PSII cycles through five states, S[subscript 0] to S[subscript 4], in which four electrons are sequentially extracted from the OEC in four light-driven charge-separation events. Here we describe time resolved experiments on PSII nano/microcrystals from Thermosynechococcus elongatus ...

This growing open access collection consists of published articles authored by ASU community members to facilitate new research and collaboration.

This collection started with Web of Science articles beginning July 2014. ASU-affiliated authors who wish to add previously published articles, or start a new personal collection, are welcome to contact us at digitalrepository@asu.edu.