Data from: Cataract surgery visual outcomes and associated risk factors in secondary level eye care centers of L V Prasad Eye Institute, IndiaRohit C. Khanna, Sumathi Matta, Gullapalli Rao, Jiwon Park, Ghanshyam Palamaner Subash Shantha & Gullapalli N. Rao
Purpose: To evaluate cataract surgery visual outcomes and associated risk factors in rural secondary level eye care centers of L V Prasad Eye Institute (LVPEI), India. Methods: The Eye Health pyramid of LVPEI has a network of rural secondary care centres (SCs) and attached vision centres (VCs) that provide high quality comprehensive eye care with permanent infrastructure to the most disadvantaged sections of society. The most common procedure performed at SCs is cataract surgery. We...
The elastic constant tensor of an inorganic compound provides a complete description of the response of the material to external stresses in the elastic limit. It thus provides fundamental insight into the nature of the bonding in the material, and it is known to correlate with many mechanical properties. Despite the importance of the elastic constant tensor, it has been measured for a very small fraction of all known inorganic compounds, a situation that limits...
Data from: Inferring species interactions in ecological communities: a comparison of methods at different levels of complexityFrancesco Carrara, Andrea Giometto, Mathew Seymour, Andrea Rinaldo & Florian Altermatt
1. Natural communities commonly contain many different species and functional groups, and multiple types of species interactions act simultaneously, such as competition, predation, commensalism or mutualism. However, experimental and theoretical investigations have generally been limited by focusing on one type of interaction at a time or by a lack of a common methodological and conceptual approach to measure species interactions. 2. We compared four methods to measure and express species interactions. These approaches are, with...
Background: The genomic history of prokaryotic organismal lineages is marked by extensive non-vertical inheritance of genes, with horizontal gene transfer (HGT) between many groups of organisms at all taxonomic levels. These HGT events have played an essential role in the origin and distribution of biological innovations. Analyses of ancient gene families show that HGT existed in the distant past, even at the time of the organismal last universal common ancestor (LUCA). Most gene transfers originated...
Data from: Relation between stability and resilience determines the performance of early warning signals under different environmental driversLei Dai, Kirill S. Korolev & Jeff Gore
Shifting patterns of temporal fluctuations have been found to signal critical transitions in a variety of systems, from ecological communities to human physiology. However, failure of these early warning signals in some systems calls for a better understanding of their limitations. In particular, little is known about the generality of early warning signals in different deteriorating environments. In this study, we characterized how multiple environmental drivers influence the dynamics of laboratory yeast populations, which was...
Data from: Shear-induced orientational dynamics and spatial heterogeneity in suspensions of motile phytoplanktonMichael T. Barry, Roberto Rusconi, Jeffrey S. Guasto & Roman Stocker
Fluid flow, ubiquitous in natural and man-made environments, has the potential to profoundly impact the transport of microorganisms, including phytoplankton in aquatic habitats and bioreactors. Yet, the effect of ambient flow on the swimming behavior of phytoplankton has remained poorly understood, largely due to the difficulty of observing cell-flow interactions at the microscale. Here, we present microfluidic experiments where we tracked individual cells for four species of motile phytoplankton exposed to a spatially non-uniform fluid...
Seasonal environmental heterogeneity is cyclic, persistent and geographically widespread. In species that reproduce multiple times annually, environmental changes across seasonal time may create different selection regimes that may shape the population ecology and life history adaptation in these species. Here, we investigate how two closely related species of Drosophila in a temperate orchard respond to environmental changes across seasonal time. Natural populations of Drosophila melanogaster and D. simulans were sampled at four timepoints from June...
Massachusetts Institute of Technology7
University of Pennsylvania1
Swiss Federal Institute of Aquatic Science and Technology1
University of California, Berkeley1
L V Prasad Eye Institute1
Eindhoven University of Technology1
University of Zurich1
University of Connecticut1
Delft University of Technology1