727 research outputs found
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Changing Collective Action: Nudges and Team Decisions [Data and Replication Package]
No full textThese data, code, and documents replicate all analyses in "Changing Collective Action: Nudges and Team Decisions" by Florian Diekert and Tillmann Eymess
Printing Green: Microalgae-based materials for 3D printing with light [data]
No full textMicroalgae have emerged as sustainable feedstocks due to their ability to fix CO2 during cultivation, rapid growth rates, and capability to produce a wide variety of metabolites. Several microalgae accumulate lipids in high concentrations, especially triglycerides, along with lipid-soluble, photoactive pigments such as chlorophylls and derivatives. Microalgae-derived triglycerides contain longer fatty acid chains with more double bonds on average than vegetable oils, allowing a higher degree of post-functionalization. Consequently, they are especially suitable as precursors for materials that can be used in 3D printing with light. Herein, we present the use of microalgae as “biofactories” to generate materials that can be further 3D printed in high resolution In this study two taxonomically different strains —Odontella aurita (BEA 0921B) and Tetraselmis striata (BEA 1102B)— are identified as suitable microalgae for our purpose. The extracts obtained from the microalgae (mainly triglycerides with chlorophyll derivatives) have been functionalized with photopolymerizable groups and used directly as printable materials (inks) without the need for additional photoinitiators. The fabrication of complex 3D microstructures with sub-micron resolution is demonstrated. Notably, the 3D printed materials show biocompatibility. Our findings open new possibilities for the next generation of sustainable, biobased, and biocompatible materials with great potential in life science applications
Anonymize or Synthesize? – Privacy-Preserving Methods for Heart Failure Score Analytics [data]
No full textIn the publication [1] we implemented anonymization and synthetization techniques for
a structured data set, which was collected during the HiGHmed Use Case Cardiology
study [2]. We employed the data anonymization tool ARX [3] and the data synthetization framework ASyH [4] individually and in combination. We evaluated the utility and shortcomings of the different approaches by statistical analyses and privacy risk assessments. Data utility was assessed by computing two heart failure risk scores (Barcelona BioHF [5] and MAGGIC [6]) on the protected data sets. We observed only minimal deviations to scores from the original data set. Additionally, we performed a re-identification risk analysis and found only minor residual risks for common types of privacy threats.
We could demonstrate that anonymization and synthetization methods protect privacy while retaining data utility for heart failure risk assessment. Both approaches and a combination thereof introduce only minimal deviations from the original data set over all features. While data synthesis techniques produce any number of new records, data anonymization techniques offer more formal privacy guarantees. Consequently, data synthesis on anonymized data further enhances privacy protection with little impacting data utility. We hereby share all generated data sets with the scientific community through a use and access agreement.
[1] Johann TI, Otte K, Prasser F, Dieterich C: Anonymize or synthesize? Privacy-preserving methods for heart failure score analytics. Eur Heart J 2024;. doi://10.1093/ehjdh/ztae083
[2] Sommer KK, Amr A, Bavendiek, Beierle F, Brunecker P, Dathe H et al. Structured, harmonized, and interoperable integration of clinical routine data to compute heart failure risk scores. Life (Basel) 2022;12:749.
[3] Prasser F, Eicher J, Spengler H, Bild R, Kuhn KA. Flexible data anonymization using ARX—current status and challenges ahead. Softw Pract Exper 2020;50:1277–1304.
[4] Johann TI, Wilhelmi H. ASyH—anonymous synthesizer for health data, GitHub, 2023. Available at: https://github.com/dieterich-lab/ASyH.
[5] Lupón J, de Antonio M, Vila J, Peñafiel J, Galán A, Zamora E, et al. Development of a novel heart failure risk tool: the Barcelona bio-heart failure risk calculator (BCN Bio-HF calculator). PLoS One 2014;9:e85466.
[6] Pocock SJ, Ariti CA, McMurray JJV, Maggioni A, Køber L, Squire IB, et al. Predicting survival in heart failure: a risk score based on 39 372 patients from 30 studies. Eur Heart J 2013;34:1404–1413
Begleitdaten zu: "PIA 1. Bericht des Pilotprojekts Inwertsetzung Ausgrabungen (Materialien zur Archäologie in Baden-Württemberg, Bd. 1)
No full text1) Neolithische Siedlung Cleebronn "Langwiesen IV": Fotodokumentation von Silexfunden
2) Frühmittelalterliches Gräberfeld Cleebronn "Langwiesen IV": Befundzeichnungen, Röntgenaufnahmen und Fotos von Funden
3) Römische Siedlung Sindelfingen: Plan der Ausgrabung und Datenerfassungsblätter der Holzfund
Electronic Index to the Early Shenbao 申報 (1872-1898)
No full textThis is the data sheet of the Electronic Index to the Early Shenbao 申報 (1872-1898). The data was exported from the original FileMaker database. It contains annotations, notes, keywords, and references, which were compiled by the researchers Andrea Janku and Nanny Kim. Since the web interface of the database ceased to exist, we saved the research notes and annotations in simple text format here. The description of the data set from 2003 reads:
"This online-index of important articles from the Shanghai daily Shenbao (1872-1949) covers the years from the paper's foundation in April 1872 to the end of the year 1898. It is designed to provide quick keyword access to the more than 11,000 entries and thus facilitate the use of this important source for the history of late Qing China.
"The index includes all leading articles from the Shenbao itself, as well as the articles reprinted from Hong Kong papers, above all those from the early Xunhuan Ribao 循環日報 (i.e. 1874 to 1879) edited by Wang Tao, which are not preserved otherwise. The selection of other items, such as news reports, official documents, letters to the editor, etc. is based on their length and perceived importance for ongoing debates. Only very little of the poetry is included. Not indexed are the contents of the Shenbao reprints of the Jingbao 京報 (Peking Gazette) as well as of advertisements.
Ergänzungsdaten zu: Reading Mesolithic Human Tracks with a Multi-Method Approach in the Paul Ambert gallery of Aldène cave (Cesseras, Hérault, France)
No full textThe richness of Mesolithic footprints in the Paul Ambert gallery of Aldène cave (Hérault, France) has been known for a long time. As part of a multidisciplinary project, the footprints were studied in 2018 by indigenous ichnologists from Namibia. The results of their qualitative morpho-classificatory analyses are presented and complemented by the results of a quantitative morphometric approach. Through this set-up, the results of the two approaches add up to a more comprehensive picture of the footprints in Aldène. According to this, a group of about 25 Mesolithic people visited Aldène once to explore the Paul Ambert gallery. The group was composed of adults, adolescents and children of both sexes. Based on the reconstructed body sizes of the adult trackmakers, they corresponded to the average body size of adult Mesolithic Europeans. The group was not close together as a unit, but split up into different small groups. On the basis of the footprints, differences in behaviour on the way into the cave and the way out of the cave can be seen. On the way in, no member of the group carried anything additional with them. This changed on the way back, where eight adults and adolescents carried something, even though it is not possible to find out what this was exactly. Nevertheless, all evidence points at the possibility that the small children were carried on the shoulders, due to the fact – in the light of the reading of their tracks – they were in a hurry to leave the cave with considerably increased walking speed. The reason for this behaviour could be the "stop on autonomy" assumed by the analysis of the torch traces. After about 500 metres of intensive exploration of the Paul Ambert gallery, about 50 % of the torches brought along had been used up and they had to start walking back. The observation that the walking speed almost doubled on the way out testifies to the urgency of the lighting management problem that had arisen, which has obviously been solved by leaving the cave quickly
(Aza)Pentacenes Clipped into a Ring: Stabilization of Large (Aza)Acenes [data]
No full textA doubly alkylene bridged 6,13-diphenylpentacene and analogously bridged azapentacenes were prepared; they are persistent. The doubly bridged azapentacenes display superior photochemical, oxidative and thermal stabilities compared to azapentacenes protected by bis(TIPS-ethynyl)-substituents—clipping an azaacene into a large ring is a viable complement in stabilization
Dispersion-Driven Formation of Chiral Twisted PAH Double Helices [Data]
No full textMolecular double helices are ubiquitous in nature and have also been generated artificially. These are usually based on helical ribbons. Here, a new type of double helices based on twisted ribbons is introduced. The monomeric strands are polycyclic aromatic hydrocarbons of various lengths with up to 25 linearly annulated six-membered rings. Single-crystal X-ray structure analysis of all revealed that the major driving force are multiple dispersion interactions of alkyl substituents. The thermodynamic stability and formation of the twisted double helices were studied by NMR as well as the kinetics of their inversions by circular dichroism spectroscopy. In combination with theoretical calculations, the mechanism of isomerization is suggested to depend on the rate of monomerization of double helical strands rather than the double helices racemize themselves as intact pairs. The new type of twisted nanoribbons in combination with their aromatic nature opens up new possibilities to design chiral materials
DLP 4D Printing of Multi-Responsive Bilayered Structures [data]
No full textAdvances in soft robotics strongly rely on the development and manufacturing of new responsive soft materials. In particular, light-based 3D printing techniques, and especially, digital light processing (DLP), offer a versatile platform for the fast manufacturing of complex 3D/4D structures with a high spatial resolution. In this work, DLP all-printed bilayered structures exhibiting reversible and multi-responsive behavior are presented for the first time. For this purpose, liquid crystal elastomers (LCEs) are used as active layers and combined with a printable non-responsive elastomer acting as a passive layer. Furthermore, selective light response is incorporated by embedding various organic dyes absorbing light at different regimes in the active layers. An in-depth characterization of the single materials and printed bilayers demonstrates a reversible and selective response. Last, the versatility of the approach is shown by DLP printing a bilayered complex 3D structure consisting of four different materials (a passive and three different LCE active materials), which exhibit different actuation patterns when irradiated with different wavelengths of light
OpenStreetMap land use for Europe "Research Data"
No full textOSMLanduse data is a scientific dataset generated within the scope of the Horizon 2020 - LandSense project. It is a classification of Sentinel-2 imagery using a deep learning model trained on OSM landuse and landcover features. The data might contain errorneous classifications.
The classification values in the raster dataset correspond to a subset of the well-known CORINE LandCover Classification.
Use it with caution and at your own risk