1,043 research outputs found
The dialectics of meritocracy and positive discrimination amidst racialised and gendered foreign workers
No full textEp. #012 - Natasha Myers
No full textThis recording and transcript form part of a collection of podcasts conducted by the Cultures of Energy at Rice University. Cultures of Energy brings writers, artists and scholars together to talk, think and feel their way into the Anthropocene. We cover serious issues like climate change, species extinction and energy transition. But we also try to confront seemingly huge and insurmountable problems with insight, creativity and laughter.It’s all about plants on this week’s Cultures of Energy podcast. Our guide is anthropologist Natasha Myers, director of the Plant Studies Collaboratory at York University (https://natashamyers.wordpress.com) and author of Rendering Life Molecular: Models, Modelers, and Excitable Matter (Duke University Press, 2015). We talk about Natasha’s work in savannah ecosystems millennia in the making, how to sniff out chemical atmospheres and queer environmental monitoring practices. Natasha explains how plants conduct inquiry in their worlds, their sense and sentience, how they both catalyze and epitomize ecological relations. We discuss how plants trouble human notions of subjectivity, the possibility a plant-based phenomenology, end-of-time botanical tourism in Singapore, and whether gardening can be a redemptive practice. Natasha envisions plants as photosynthetic world-makers and tells us that if we humans want to thrive, our plants needs to thrive too. It’s time to embrace the Planthropocene
Atmospheric mineral dust emission and climatological variables for Etosha Pan, Namibia (2000-2022)
No full textCSV data files containing records of mineral dust plume events (dust point source locations lat/long, start and end time, duration, plume movement direction, and sensor used for detection), extrapolated monthly, seasonal and annual dust plume event and dust days (i.e. count of days in which a dust plume was observed) and dust optical depth (DOD) data, and associated records of meteorological and hydrological variables for dust plume events (i.e. 10 m wind speed, lake area extents, catchment precipitation totals and specific source point surface wetting frequencies by precipitation and ephemeral flooding, and El Niño Southern Oscillation [ENSO 3.4] and South Indian Ocean Dipole [SIOD] index values) for Etosha Pan, Namibia for the analysis period from July 1999 to January 2023.
All datasets are readable using CSV file viewer software.
Dust plume event data were analysed manually by the author Natasha S. Wallum. Data used for detection were sourced from Terra and Aqua satellites MODIS level 1b and Aerosol data acquired from the Atmospheric Archive and Distribution System (LAADS) Distributed Active Archive Center (DAAC), located in the Goddard Space Flight Center in Greenbelt, Maryland (https://ladsweb.nascom.nasa.gov/) and SEVIRI data procured from the EUMETSAT Data Store (https://data.eumetsat.int/search?query=). Analysis of SEVIRI imagery utilised the Clear Sky Differencing (CSD) algorithm developed by Jon Murray and colleagues (https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2016JD025221).
Lake area extent data were derived by density thresholding of near-infrared (NIR) reflectance data from the MODIS Terra satellite obtained from NASA’s LAADS DAAC data portal (https://ladsweb.modaps.eosdis.nasa.gov/) and verified using Level-2 (8-day) images collected from Landsat 5 TM (1984–2012) and Landsat 8 OLI (2013 – present day) sensors were acquired through the USGS Earth Explorer data portal (www.earthexplorer.com).
The contributing catchment (Cuvelai-Etosha Basin) was derived from the HydroBASINS (Lehner and Grill, 2013) catchment database (https://hydrosheds.org/products/hydrobasins), and this area was used to derive daily precipitation inputs for 2000–2022 (July – June hydrological year) from The Integrated Multi-Satellite Retrievals for GPM (GPM-IMERG) and The Tropical Rainfall Measuring Mission (TRMM) gridded time-series of precipitation available from the Goddard Earth Science Data and Information Services Center (http://disc.gsfc.nasa.gov/).
These data were augmented by limited monthly precipitation records (2000–2022) from 10 local weather stations (Mahenene, Ondjiva, Namacunde, Oshaambelo, Ogongo, Ondangwa, Okashana, Okapya, Okaukuejo, and Mannheim) provided by the Southern African Science Service Centre for Climate Change and Adaptive Land Management (SASSCAL; https://sasscal.org/) and continuous rain gauge measurements recorded at Windpoort located in close proximity to Etosha Pan within the Cuvelai-Etosha Basin.
Near-surface (10 m) wind speeds (m/s) and cubed wind speed anomaly data were derived from ERA5-Land reanalysis model data product available from the Copernicus Climate Change Service Data Store (https://cds.climate.copernicus.eu/).
Surface wetting frequencies and time since wetting for dust event source points were calculated by the author Natasha S. Wallum using ArcGIS Pro (education licence on behalf of the University of Oxford).
Global climate indices of SST anomalies data (ENSO 3.4 and SIOD) were obtained from the Climate Diagnostics Centre (CDC) online archives (http://psl.noaa.gov/data/climateindices) and the Indian Ocean dipole (IOD) site maintained by the Frontier Research System for Global Change (FRSGC)/Japan Agency for Marine-Earth Science and Technology (JAMSTEC) Climate Variations Research Program (http://www.jamstec.go.jp)
DXG #3: Thinking Hydropoetics Critically
No full textStemming from The Otolith Group’s 2010 film Hydra Decapita, the Otolith Group reflected upon questions of poesis and abstraction with relation to the aesthetics and politics of the aquatic, the deep sea and the oceanic with artist Natasha Thembiso Ruwona and curator Sabrina Henry
DXG #3: Thinking Hydropoetics Critically
No full textStemming from The Otolith Group’s 2010 film Hydra Decapita, the Otolith Group reflected upon questions of poesis and abstraction with relation to the aesthetics and politics of the aquatic, the deep sea and the oceanic with artist Natasha Thembiso Ruwona and curator Sabrina Henry
Les sylphides, featuring Marguerite Gontcharova, Galina Razoumova, Anna Volkova, Phyllida Cooper, Therese Moulin and Sonia Orlova, [3] [picture].
No full textCondition: Good/fair, some fading.; Title from reference sources, see file 203/09/00017-02.; Part of collection: The Geoffrey Ingram collection of ballet photographs from the Ballets Russes Australian tour, 1936-1940. Dancers: Lydia Couprina also known as Phyllida Cooper; Natasha Melnikova (?) also known as Therese Moulin; Sonia Gronau also known as Sonia Orlova, see file 203/09/00017-02
Les sylphides, featuring Marguerite Gontcharova, Galina Razoumova, Anna Volkova, Phyllida Cooper, Therese Moulin and Sonia Orlova, [2] [picture].
No full textCondition: Good/fair; some fading.; Title from reference sources, see file 203/09/00017-02.; Part of collection: The Geoffrey Ingram collection of ballet photographs from the Ballets Russes Australian tour, 1936-1940. Dancers: Lydia Couprina also known as Phyllida Cooper; Natasha Melnikova (?) also known as Therese Moulin; Sonia Gronau also known as Sonia Orlova, see file 203/09/00017-02
Theories of Time and Space
No full textPoet Natasha Trethewey presents her "Theories of Time and Space," April 9, 2005, around Gulfport, Mississippi. Trethewey is the author of Domestic Work (2000) and Bellocq's Ophelia (2002). Her upcoming Native Guard will be published in 2006.
Trethewey's poem "Elegy for the Native Guards" is also available on Southern Spaces
Elegy for the Native Guards
No full textPoet Natasha Trethewey presents her "Elegy for the Native Guards," April 9, 2005, on Ship Island, Mississippi. Trethewey is the author of Domestic Work (2000) and Bellocq's Ophelia (2002). Her upcoming Native Guard will be published in 2006.
Trethewey's poem "Theories of Time and Space" is also available on Southern Spaces
A new bomb-combustion system for tritium extraction
No full textQuantitative extraction of tritium from a sample matrix is critical to efficient measurement of the low-energy pure beta emitter. Oxidative pyrolysis using a tube furnace (Pyrolyser) has been adopted as an industry standard approach for the liberation of tritium (Warwick et al. in Anal Chim Acta 676:93–102, 2010) however pyrolysis of organic-rich materials can be problematic. Practically, the mass of organic rich sample combusted is typically limited to <1 g to minimise the possibility of incomplete combustion. This can have an impact on both the limit of detection that can be achieved and how representative the subsample is of the bulk material, particularly in the case of heterogeneous soft waste. Raddec International Ltd (Southampton, UK), in conjunction with GAU-Radioanalytical, has developed a new high-capacity oxygen combustion bomb (the Hyperbaric Oxidiser; HBO2) to address this challenge. The system is capable of quantitatively combusting samples of 20–30 g under an excess of oxygen, facilitating rapid extraction of total tritium from a wide range sample types
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