Columbia Glacier bedrock topography and ice thickness

Columbia Glacier bedrock topography and ice volume. Bedrock topography and ice thickness for 1957 and 2007 on a 100 m grid are provided in NetCDF format, referenced to WGS84 UTM Zone 6N. For details about the method and the datasets used, please see: McNabb, R., Hock, R., O’Neel, S., Rasmussen, L., Ahn, Y., Braun, M., . . . Truffer, M. (2012). Using surface velocities to calculate ice thickness and bed topography: A case study at Columbia Glacier, Alaska, USA. Journal of Glaciology, 58(212), 1151-1164. 10.3189/2012JoG11J24

Dataset Supporting McClean and Hunter: 17a-Estradiol limits the impact of ibuprofen upon community respiration by streambed biofilms in a sub-urban stream. DOI: 10.1101/718924

Pharmaceuticals compounds such as the non-steroidal anti-inflammatory drug ibuprofen and the artificial estrogen 17a-estradiol are contaminants of emerging concern in freshwater systems. Globally, the use of these compounds is growing by around ~3 % per year, yet we know little about how interactions between different pharmaceuticals may affect aquatic ecosystems. Here we test how interactions between ibuprofen and 17a-estradiol affect the growth and community metabolism of streambed biofilms. Here we provide supporting data from contaminant exposure experimentsreporting how ibuprofen and estradiol affected biofilm biomass (ash free dry weigh), community respiration, net and gross primary production

Brexit and Young People News Media Archive (2016-2022)

A dataset of newspaper articles relating to Brexit and young people between 2016 and 2022

Using the Tea Bag Index to unravel how interactions between an antibiotic (Trimethoprim) and endocrine disruptor (17a-estradiol) affect aquatic microbial activity: Supporting Dataset 1

The constant release of complex mixture of pharmaceuticals, including antimicrobials and endocrine disruptors, into the aquatic environment. These have the potential to affect aquatic microbial metabolism and alter biogeochemical cycling of carbon and nutrients. We used the Tea Bag Index (TBI) for decomposition within a series of contaminant exposure experiments to test how interactions between an antibiotic (trimethoprim) and endocrine disruptor (17a-estradiol) affects microbial activity in an aquatic system. The TBI is a citizen science tool used to test microbial activity by measuring the differential degradation of green and rooibos tea as proxies for labile and recalcitrant organic matter decomposition. Here we present the raw data on pharmaceutical exposures and the mass loss of the Rooibos and Green tea bags within the experiment. From Tea Bag mass loss we then calculated the Stabilisation Factor (S) and Initial Decomposition Rate of the labile organic matter fraction

"Border Shopping"

A film produced by the Nerve Centre in Derry in August 2023, reflecting young people's understanding and experiences of the Irish Border as part of the Bordered Youth Project

Spatial and temporal variability of seagrass at Lizard Island, Great Barrier Reef

Increasing threats to natural ecosystems from local and global stressors are reinforcing the need for baseline data on the distribution and abundance of organisms. We quantified spatial and/or temporal patterns of seagrass distribution, shoot density, leaf area index, biomass, productivity, and sediment carbon content in shallow water (0-5 m) at Lizard Island, Great Barrier Reef, Australia, in field surveys conducted in December 2011 and October 2012. Seagrass meadows were mapped using satellite imagery and field validation. A total of 18.3 ha of seagrass, composed primarily of Thalassia hemprichii and Halodule uninervis, was mapped in shallow water. This was 46% less than the area of seagrass in the same region reported in 1995, although variations in mapping methods may have influenced the magnitude of change detected. There was inter-annual variability in shoot density and length, with values for both higher in 2011 than in 2012. Seagrass properties and sediment carbon content were representative of shallow-water seagrass meadows on a mid-shelf Great Barrier Reef island. The data can be used to evaluate change, to parameterize models of the impact of anthropogenic or environmental variability on seagrass distribution and abundance, and to assess the success of management actions

Obsidians of Pantelleria (Strait of Sicily): A Petrographic, Geochemical and Magnetic Study of Known and New Geological Sources

This paper provides new petrochemical and paleomagnetic data from obsidian sub-sources on the island of Pantelleria, exploited since the Neolithic. Data has been obtained from 14 obsidian samples from 4 locations: Fossa della Pernice (2 sites), Salto la Vecchia and Balata dei Turchi. Here, we aim to better characterize these obsidians using a cross-disciplinary and multi-analytical approach, to further understand their archaeological significance. Major element analyses (EMP) have enabled two compositional super-groups to be distinguished: (i) Fossa della Pernice, less peralkaline and (ii) Balata dei Turchi-Salto la Vecchia, distinctly more peralkaline and having almost identical chemical patterns. Trace element analyses (LA-ICP-MS) corroborate major element groupings, with the Balata dei Turchi-Salto la Vecchia super-group being further characterized by a pronounced negative europium anomaly. Glass H2O contents (FT-IR) reveal an overlap among all the sub-sources (H2O = 0.1-0.3 wt. %). Magnetic methods have refined the petrochemical groupings, permitting further distinction between Balata dei Turchi-Salto La Vecchia and the Fossa della Pernice super-groups. The occurrence of sub-microscopic (< 1 μm) ferromagnetic minerals results in different magnetic susceptibility and Natural Remanent Magnetization values and allows the best distinction among the products from the chosen sites. When compared with obsidian tools excavated from Bronze-age settlements on the island of Ustica (230 km NE of Pantelleria), 12% are distinctly peralkaline, indicating their provenance to be from the Balata dei Turchi sub-source

A low-cost wireless temperature sensor: evaluation for use in environmental applications

With a wide range of applications benefiting from dense network air temperature observations but with limitations of costs, existing siting guidelines and risk of damage to sensors, new methods are required to gain a high resolution understanding of the spatio-temporal patterns of urban meteorological phenomena such as the urban heat island or precision farming needs. With the launch of a new generation of low cost sensors it is possible to deploy a network to monitor air temperature at finer spatial resolutions. Here we investigate the Aginova Sentinel Micro (ASM) sensor with a bespoke radiation shield (together < US$150) which can provide secure near-real-time air temperature data to a server utilising existing (or user deployed) Wireless Fidelity (Wi-Fi) networks. This makes it ideally suited for deployment where wireless communications readily exist, notably urban areas. Assessment of the performance of the ASM relative to traceable standards in a water bath and atmospheric chamber show it to have good measurement accuracy with mean errors < ± 0.22 °C between -25 and 30 °C, with a time constant in ambient air of 110 ± 15 s. Subsequent field tests of it within the bespoke shield also had excellent performance (root-mean-square error = 0.13 °C) over a range of meteorological conditions relative to a traceable operational UK Met Office platinum resistance thermometer. These results indicate that the ASM and bespoke shield are more than fit-for-purpose for dense network deployment in urban areas at relatively low cost compared to existing observation techniques

A strategy for grouping of nanomaterials based on key physico-chemical descriptors as a basis for safer-by-design NMs

SummaryThere is an urgent need to establish a fundamental understanding of the mechanisms of nanomaterial (NM) interaction with living systems and the environment, in order for regulation of NMs to keep pace with their increasing industrial application. Identification of critical properties (physicochemical descriptors) that confer the ability to induce harm in biological systems is crucial, enabling both prediction of impacts from related NMs (via quantitative nanostructure–activity relationships (QNARs) and read-across approaches) and development of strategies to ensure these features are avoided or minimised in NM production in the future (“safety by design”). A number of challenges to successful implementation of such a strategy exist, including: (i) the lack of widely available systematically varied libraries of NMs to enable generation of sufficiently robust datasets for development and validation of QNARs; (ii) the fact that many physicochemical properties of pristine NMs are inter-related and thus cannot be varied systematically in isolation from others (e.g. increasing surface charge may impact on hydrophobicity, or changing the shape of a NM may introduce defects or alter the atomic configuration of the surface); and (iii) the effect of ageing, transformation and biomolecule coating of NMs under environmental or biological conditions.A novel approach to identify interlinked physicochemical properties, and on this basis identify overarching descriptors (axes or principle components) which can be used to correlate with toxicity is proposed. An example of the approach is provided, using three principle components which we suggest can be utilised to fully describe each NM, these being the intrinsic (inherent) properties of the NM, composition (which we propose as a separate parameter) and extrinsic properties (interaction with media, molecular coronas etc.)

MODEL PEMBERDAYAAN KREATIVITAS MAHASISWA :VARIAN PRODUK KOPI UNTUK BISNIS MODERN SEBAGAI DAYA TARIK OBYEK PARIWISATA LOKAL

This research is an empirical study that forms theoretical concepts in the community empowerment system, especially students who act as initiators of modern business creativity. Promising coffee shop franchise businesses such as Daycinno, Starbucks, Coffee Toffee, Anomali Coffee, and Killiney Kopitiam. In the city of Semarang, cafes or coffee shops have started to appear with the concept of young entertaint and instagramable. The city of Semarang is now used as an alternative choice for studying at the higher education level for children outside Java. This has an impact on the mobility of the atmosphere at night in the city of Semarang which is quite high so that there are many cafes or coffee shops with the concept of young entertaint and instagramable above 50 cafes or coffee shops managed by entrepreneurs from students. The research methodology emphasizes the study of literature from articles, journals, and research grant reports on two themes, namely coffee and knowledge and technology transfer. The development of hypotheses to form an architecture of endogenous and exogenous construct variables as the basis for making a model for empowering student creativity: coffee product variants for modern business. Student Creativity Empowerment Model :Coffee Product Variants For Modern Business As Attractions of Local Tourism Objects consist of 6 constructs 1) Integrity of the coffee community, 2) Characteristics of coffee shops, 3) Characteristics of coffee types, 4) Innovation of coffee product variants, 5) Market segment lifestyle of coffee connoisseurs, and 6) Empowering creativity for modern business as an attraction for local tourism objects. From each of the 6 constructs, it is strongly influenced by the operational variables of the indicators, totaling a total of 26 operational indicators