181 Works

Altering the conductivity of CuO through the formation of intrinsic defects - data

Aleksandar Živković & Nora H De Leeuw
To explore the possibility of improving the photovoltaic properties of CuO, its intrinsic defect properties need to be studied. Datasets arising from density functional theory based calculations are provided in the .xlsx format (can be viewed either by MS Office or Libre Office) comprising 3 data sheets which correspond to the structural, defect formation energies, and electronic properties of CuO with native impurities introduced within. Each sheet has a text header with descriptive data and...

Interaction of SO2 with the Platinum (001), (011) and (111) Surfaces: A DFT Study - data

Marietjie J Ungerer, David Santos-Carballal, Abdelaziz Cadi-Essadek, Cornelia G C E Van Sittert & Nora H De Leeuw
>Density functional theory (DFT) calculations were uasd with long-range dispersion corrections to study the interaction of SO2 with Pt (001), (011), and (111) surfaces. Platinum is a noble metal that is widely used for the electro-catalytic production of H2, which surface reactivity towards SO2 is not yet fully understood. The work involved studying the surface energies of the mayor Pt surfaces with 4 layers, adsorption energy for SO2 on these surfaces, the thermodynamic effect of...

Strange Freedom

Laurens ten Kate
Without an external giver, like God, the Nation, or an ideological system, the sense of the world has to be formulated and enacted by humanity itself. This is typical of the modern era, and one of the difficult challenges imposed on the modern self. In this study, the starting point is the hypothesis that liberal religion, as a non-dogmatic and non-universalist undercurrent in the plurality of modern religious traditions, can be seen as a possible...

Data supplement to: Fiehn et al (2020): Estimating CH4, CO2, and CO emissions from coal mining and industrial activities in the Upper Silesian Coal Basin using an aircraft-based mass balance approach

Alina Fiehn, Julian Kostinek, Maximillian Ecki, Theresa Klausner, Michał Gałkowski, Jinxuan Chen, Christoph Gerbig, Thomas Röckmann, Hossein Maazallahi, Martina Schmidt, Piotr Korbeń, Jarosław Nȩcki, Paweł Jagoda, Norman Wildmann, Christian Mallaun, Rostyslav Bun, Anna-Leah Nicki, Patrick Jöckel, Andreas Fix & Anke Rolger
Supplementary data with CO2 and CH4 observations from in situ and airplane platforms during a campaign over the Upper Silesian Coal Basin (USCB), Poland, in summer 2018. The campaign is described in the paper: Fiehn, A., Kostinek, J., Eckl, M., Klausner, T., Gałkowski, M., Chen, J., Gerbig, C., Röckmann, T., Maazallahi, H., Schmidt, M., Korbeń, P., Nȩcki, J., Jagoda, P., Wildmann, N., Mallaun, C., Bun, R., Nickl, A.-L., Jöckel, P., Fix, A., and Roiger, A.:...

Iron-Nickel-Sulfide Characterisation and Catalytic Testing Data

Claire Mitchell, David Santos-Carballal, Andrew M Beale, Wilm Jones, Sankar Meenakshisundaram & Nora H De Leeuw
Catalytic data describing the production of formate from the hydrogenation of CO2 using iron-sulfide, iron-nickel-sulphide and nickel-sulfide catalysts prepared with different heat treatments under a range of reaction conditions. Catalyst characterisation of these materials include XRD analysis, giving an understanding of the violarite phase and crystallinity. XPS analysis gains understanding of the iron, nickel and sulphur species, and how sulphide and oxide species change under thermal oxidation. XAS analysis employed is vital to gain more...

Investigating seasonal mobility of Irish Giant Deer Megaloceros giganteus (Blumenbach, 1799) through intra-tooth multi-isotope analysis

David S. Douw & Tom J. Giltaij
Utrecht University, The Netherlands (1) Geologisch Museum Hofland, The Netherlands (2)

The Giant Deer Megaloceros giganteus (Blumenbach, 1799) is an icon of the Ice Age due to their famous antlers, although there has been little focus on isotopic analysis of these animals. migrational behaviour in these animals has been suggested, mainly due to this behaviour being common in deer species today. Migrational behaviour and seasonal movement is analysed in three Giant Deer from Ireland...

Active engagement of students by means of class exercises

Hans de Bresser
Utrecht University, the Netherlands, The Netherlands

In order to improve student learning during lectures on location, students can be actively engaged by giving short class-exercises. Class exercises are just one of the many ways of making lectures more interactive. A good source of inspiration regarding interactive lectures is formed by the quick start-up guides presented at https://serc.carleton.edu/onramps/index.html (NSF funded project). I have ample experience with class exercises in a Structural Geology and Tectonics...

Astronomical climate forcing of ~2.5 Ga banded iron formations

Margriet L. Lantink, Joshua H. F. L. Davies, Rick Hennekam, Frederik J. Hilgen, David McB. Martin, Paul R. D. Mason, Gert-Jan Reichart & Urs Schaltegger
Utrecht University, The Netherlands (1); Université du Québec à Montréal, Canada (2); University of Geneva, Switzerland (3); Royal Netherlands Institute for Sea Research, and Utrecht University, The Netherlands (4; Geological Survey of Western Australia (5)

Large-scale banded iron formations (BIFs) were deposited during Neoarchean to early Paleoproterozoic and have been mainly linked to hydrothermal plume activity and the rise of oxygen in the ocean and atmosphere. However, the potential influence of astronomical “Milankovitch”...

Data from: Food webs obscure the strength of plant diversity effects on primary productivity

Eric W. Seabloom, Linda Kinkel, Elizabeth T. Borer, Yann Hautier, Rebecca A. Montgomery & David Tilman
Plant diversity experiments generally find that increased diversity causes increased productivity; however, primary productivity is typically measured in the presence of a diverse food web, including pathogens, mutualists and herbivores. If food web impacts on productivity vary with plant diversity, as predicted by both theoretical and empirical studies, estimates of the effect of plant diversity on productivity may be biased. We experimentally removed arthropods, foliar fungi and soil fungi from the longest-running plant diversity experiment....

Data from: Parasites and competitors suppress bacterial pathogen synergistically due to evolutionary trade-offs

XiaoFang Wang, Zhong Wei, Mei Li, Xueqi Wang, Anqi Shan, Xinlan Mei, Alexandre Jousset, Qirong Shen, Yangchun Xu & Ville-Petri Friman
Parasites and competitors are important for regulating pathogen densities and subsequent disease dynamics. It is, however, unclear to what extent this is driven by ecological and evolutionary processes. Here we used experimental evolution to study the eco-evolutionary feedbacks between Ralstonia solanacearum bacterial pathogen, Ralstonia-specific phage parasite and Bacillus amyloliquefaciens competitor bacterium in the laboratory and plant rhizosphere. We found that while the phage had a small effect on pathogen densities on its own, it considerably...

Data from: Periphyton density is similar on native and non-native plant species

Bart M. C. Grutters, Elisabeth Maria Gross, Ellen Van Donk & Elisabeth S. Bakker
Non-native plants increasingly dominate the vegetation in aquatic ecosystems and thrive in eutrophic conditions. In eutrophic conditions, submerged plants risk being overgrown by epiphytic algae; however, if non-native plants are less susceptible to periphyton than natives, this would contribute to their dominance. Non-native plants may differ from natives in their susceptibility to periphyton growth due to differences in nutrient release, allelopathy and architecture. Yet, there is mixed evidence for whether plants interact with periphyton growth...

Data from: Low fitness at low latitudes: wintering in the tropics increases migratory delays and mortality rates in an Arctic breeding shorebird

Jeroen Reneerkens, Tom S.L. Versluijs, Theunis Piersma, Jose Alves, Mark Boorman, Colin Corse, Olivier Gilg, Gunnar Hallgrimsson, Johannes Lang, Bob Loos, Yaa Ntiamoa-Baidu, Alfred Nuoh, Peter Potts, Job Ten Horn & Tamar Lok
1. Evolutionary theories of seasonal migration generally assume that the costs of longer migrations are balanced by benefits at the non-breeding destinations. 2. We tested, and rejected, the null hypothesis of equal survival and timing of spring migration for High Arctic breeding sanderling Calidris alba using six and eight winter destinations between 55° N and 25° S, respectively. 3. Annual apparent survival was considerably lower for adult birds wintering in tropical West-Africa (Mauritania: 0.74 and...

Leading trait dimensions in flood-tolerant plants

Yingji Pan, Ellen Cieraad, Jean Armstrong, William Armstrong, Beverley Clarkson, Ole Pedersen, Eric Visser, Laurentius Voesenek & Peter Van Bodegom
Background and Aims While trait-based approaches have provided critical insights into general plant functioning, we lack a comprehensive quantitative view on plant strategies in flooded conditions. Plants adapted to flooded conditions have specific traits (e.g. root porosity, low root/shoot ratio and shoot elongation) to cope with the environmental stressors including anoxic sediments, and the subsequent presence of phytotoxic compounds. In flooded habitats, plants also respond to potential nutrient and light limitations, e.g. through the expression...

The shape of aroma: X-ray CT scans of citrus fruits, their separate tissues, and their individual oil glands

Erik Amezquita, Michelle Quigley, Tim Ophelders, Danelle Seymour, Elizabeth Munch & Daniel Chitwood
From preventing scurvy to being part of religious rituals, citrus are intrinsically connected to human health and perception. From tiny mandarins to head-sized pummelos, citrus capability of hybridization provides a vastly diverse array of fruit sizes and shapes, which in turn corresponds to a diversity of flavors and aromas. These sensory qualities are tightly linked to oil glands in the citrus skin. The oil glands are also key to understanding fruit development, and the essential...

Integrated population model for the Mallard in the Netherlands

, Eelke Jongejans, Chris A. M. Van Turnhout, Loes Van Den Bremer, Henk Van Der Jeugd & Erik Kleyheeg
Europe’s highest densities of breeding Mallards (Anas platyrhynchos) are found in the Netherlands, but the breeding population there has declined by ~30% since the 1990s. The exact cause of this decline has remained unclear. Here, we used an integrated population model to jointly analyze Mallard population survey, nest survey, duckling survival and band-recovery data. We used this approach to holistically estimate all relevant vital rates, including duckling survival rates for years for which no explicit...

Acoustic recordings and corresponding mammal, bird, human activity, vegetation, and climate data from a tropical forest landscape

Johan Diepstraten, Jacques Kuemo Kuenbou & Jacob Willie
Obtaining and analysing sound data can be a tedious and lengthy process. We present sound data consisting of 38,065 1-minute sound recordings obtained in three sites within a rainforest landscape in southeast Cameroon. The sites differ in anthropogenic disturbance. We also present meta data corresponding to 20,485 of these recordings with the identification of all animal vocalisations in each 1-minute sound recording. Additionally, we provide a raw database with data on habitat, human activities, remoteness,...

High spatial resolution mapping identifies habitat characteristics of the invasive vine Antigonon leptopus on St. Eustatius (Lesser Antilles)

Elizabeth Haber, Maria Santos, Pedro Leitão, Marcel Schwieder, Pieter Ketner, Joris Ernst, Max Rietkerk, Martin Wassen & Maarten Eppinga
On the Caribbean island of St. Eustatius, Coralita (Antigonon leptopus) is an aggressive invasive vine posing major biodiversity conservation concerns. The generation of distribution maps can address these conservation concerns by helping to elucidate the drivers of invasion. We test the use of support vector machines to map the distribution of Coralita on St. Eustatius at high spatial resolution and use this map to identify potential landscape and geomorphological factors associated with Coralita presence. This...

Global patterns of the leaf economics spectrum in wetlands

Yingji Pan, Ellen Cieraad, Jean Armstrong, William Armstrong, Beverley Clarkson, Timothy Colmer, Ole Pedersen, Eric Visser, Laurentius Voesenek & Peter Van Bodegom
The leaf economics spectrum (LES) describes consistent correlations among a variety of leaf traits that reflect a gradient from conservative to acquisitive plant strategies. So far, whether the LES holds in wetland plants at a global scale has been unclear. Using data on 365 wetland species from 151 studies, we find that wetland plants in general show a shift within trait space along the same common slope as observed in non-wetland plants, with lower leaf...

Fast and furious: Early differences in growth rate drive short-term plant dominance and exclusion under eutrophication

Yann Hautier, Zhang Pengfei, Mariet Hefting, Merel Soons, George Kowalchuk, Mark Rees, Andrew Hector, Lindsay Turnbull, Xiaolong Zhou, Zhi Guo, Chengjin Chu, Guozhen Du & Yann Hautier
1. The reduction of plant diversity following eutrophication threatens many ecosystems worldwide. Yet, the mechanisms by which species are lost following nutrient enrichment are still not completely understood, nor are the details of when such mechanisms act during the growing season, which hampers understanding and the development of mitigation strategies. 2. Using a common garden competition experiment, we found that early-season differences in growth rates among five perennial grass species measured in monoculture predicted short-term...

The data publication chain of the EPOS Multi-scale Laboratories

Geertje ter Maat & the MSL Team
EPOS (the European Plate Observing System) is a pan-European e-infrastructure framework with the goal of improving and facilitating the access, use, and re-use of Solid Earth science data. The EPOS Thematic Core Service Multi-scale Laboratories (TCS MSL) represents a community of European Solid Earth sciences laboratories including rock and magma high-temperature and high-pressure experimental facilities, electron microscopy, micro-beam analysis, analogue modelling of tectonic, geodynamic, and volcanological processes, paleomagnetism, and analytical laboratories. Experimental data from these...

High-density genomic characterization of native Croatian sheep breeds

Ivana Drzaic, Ino Curik, Boris Lukic, Mario Shihabi, Meng-Hua Li, Juha Kantanen, Salvatore Mastrangelo, Elena Ciani, Johannes A. Lenstra & Vlatka Cubric-Curik
A recent comprehensive genomic analysis based on 50K SNP profiles has shown that the regional Balkan sheep populations have considerable genetic overlap but are distinctly different from surrounding breeds. All eight Croatian sheep breeds were represented by a small number of individuals per breed. Here, we genotyped 220 individuals representing the native Croatian sheep breeds (Istrian Sheep, Krk Island Sheep, Cres Island Sheep, Rab Island Sheep, Lika Pramenka, Pag Island Sheep, Dalmatian Pramenka, Dubrovnik Sheep)...

Peak Ring Magnetism: Rock- and mineral-magnetic properties of the Chicxulub impact crater

Bruno Daniel Leite Mendes , Agnes Kontny , Ksenia Gaus , Bonny Kuipers & Mark Dekkers
Large impact structures on Earth like the Chicxulub in Mexico are characterized by magnetic highs but the magneto-mineralogical origin is still poorly constrained and impact-generated melt versus hydrothermal activity models are discussed. The IODP-ICDP expedition 364 drilled into the peak ring of the Chicxulub impact crater, which is characterized by a well-developed hydrothermal system. This system was active for up to 2 Ma, reaching temperatures of 350-450°C. The main goal of our study is the...

The EXCITE-network: providing access to leading-edge electron and X-ray microscopy facilities for geo-materials research

Oliver Plümper , Veerl Cnudde , Geertje ter Maat , Sylvia Walter , Richard Wessels & the EXCITE network
Understanding earth materials is critical to creating a sustainable, carbon-neutral society due to their involvement in many vital processes. Earth materials control the feasibility of subsurface energy storage, geothermal energy extraction, and are a source of critical elements. However, perturbations to geological systems can also result in hazards, such as human-induced earthquakes. If we want to tackle current, pressing scientific questions related to sustainable development for a circular economy, there is an urgent need to...

Data from: Genetic origin, admixture and population history of aurochs (Bos primigenius) and primitive European cattle

Maulik R. Upadhyay, Wei Chen, Johannes A. Lenstra, C. R. J. Goderie, David E. MacHugh, Stephen D. E. Park, David A. Magee, Donato Matassino, Ferdinando Ciani, Hendrik-Jan Megens, J. A. M. Van Arendonk, Martien A. M. Groenen, European Cattle Genetic Diversity Consortium & Richard P. M. A. Crooijmans
The domestication of taurine cattle initiated ~10 000 years ago in the Near East from a wild aurochs (Bos primigenius) population followed by their dispersal through migration of agriculturalists to Europe. Although gene flow from wild aurochs still present at the time of this early dispersion is still debated, some of the extant primitive cattle populations are believed to possess the aurochs-like primitive features. In this study, we use genome-wide single nucleotide polymorphisms to assess...

Data from: Modelling dynamics in protein crystal structures by ensemble refinement

B. Tom Burnley, Pavel V. Afonine, Paul D. Adams & Piet Gros
Single-structure models derived from X-ray data do not adequately account for the inherent, functionally important dynamics of protein molecules. We generated ensembles of structures by time-averaged refinement, where local molecular vibrations were sampled by molecular-dynamics (MD) simulation whilst global disorder was partitioned into an underlying overall translation–libration–screw (TLS) model. Modeling of 20 protein datasets at 1.1–3.1 Å resolution reduced cross-validated R_free values by 0.3–4.9%, indicating that ensemble models fit the X-ray data better than single...

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