928,262 research outputs found
Simulation dataset and plotting scripts used for journal article "Impact of acidity and surface modulated acid dissociation on cloud response to organic aerosol" by Sengupta et al. (2024)
No full text<p>Simulation data underlying all figures presented in "Impact of acidity and surface modulated acid dissociation on cloud response to organic aerosol" by Sengupta et al. (2024). DOI: 10.5194/acp-24-1467-2024</p>
<p>The data for each figure and the plotting scripts are included in a zip file labelled by the figure number as presented in the paper and accompanying supplement.</p>
Data for "Rapid seaward expansion of seaport footprints worldwide"
No full text[updated October 2023] This dataset comprises data and code used in "Rapid seaward expansion of seaport footprints worldwide" (Sengupta &amp; Lazarus, 2023; preprint: https://doi.org/10.31223/X5SD3T). The data include four csv files: 'Sengupta_Lazarus_REC_1990_2020_v05.csv' – annual time series of seaward expansion (km^2) between 1990–2020 through coastal reclamation for 66 of the world's top 100 container seaports in 2020, as ranked by reported container throughput (Lloyd's List, 2021). Dataset includes Year, Seaport, Country, Region, Reclaimed area (km^2) [raw measurement], and Reclaimed area (km^2) [smoothed]. To produce the smoothed data, the raw data are passed through a Savitzky–Golay filter. 'Sengupta_Lazarus_REC_TEU_2011_2020_v03.csv' – annual time series of seaward expansion (km^2) and reported container throughput (millions TEU) between 2011–2020 for 43 of the world's top 100 container seaports in 2020, as ranked by reported container throughput (Lloyd's List, 2021). Dataset includes Year, Seaport, Country, Region, Reclaimed area (km^2) [raw measurement], and Reclaimed area (km^2) [smoothed with a Savitzky–Golay filter], and TEU (millions), collated from archived Lloyd's List reports. 'Sengupta_Lazarus_REC_TEU_totals_v04.csv' – Simplified dataset listing total seaward expansion (km^2) and container throughput in 2020 for 66 of the world's top 100 container seaports in 2020, as ranked by reported container throughput (Lloyd's List, 2021). Dataset includes Seaport, Country, Region, Reclaimed area (km^2) [smoothed with a Savitzky–Golay filter], ranked list of seaports by expansion extent, and TEU (millions) handled in 2020, and Lloyd's List rank in 2020 (Lloyd's List, 2021). 'Sengupta_Lazarus_2023_ports_excluded.csv' – contains list of 34 ports excluded from thus analysis because they are either not on an open coastline (e.g. estuarine, riverine) or expanded less than 1 km^2 seaward between 1990–2020. 'RECLAIM_port_trajectories_v11.ipynb' – Jupyter notebook for data wrangling and plotting figures presented in Sengupta &amp; Lazarus (2023). (Note that this notebook does not produce the map-based figures presented in that work.) The method for calculating reclaimed area over time in Google Earth Engine (GEE) is described in Sengupta et al. (2023), and the GEE code is available here: https://github.com/dhritirajsen/Seaport_reclamation These data and code are also available here: https://github.com/edlazarus/Seaports</span
Data for "Rapid seaward expansion of seaport footprints worldwide"
No full text[updated July 2023] This dataset comprises data and code used in "Rapid seaward expansion of seaport footprints worldwide" (Sengupta &amp; Lazarus, 2023; preprint: https://doi.org/10.31223/X5SD3T).
The data include four csv files:
'Sengupta_Lazarus_REC_1990_2020_v02.csv' – annual time series of seaward expansion (km^2) between 1990–2020 through coastal reclamation for 66 of the world's top 100 container seaports in 2020, as ranked by reported container throughput (Lloyd's List, 2021). Dataset includes Year, Seaport, Country, Region, Reclaimed area (km^2) [raw measurement], and Reclaimed area (km^2) [smoothed]. To produce the smoothed data, the raw data are passed through a Savitzky–Golay filter.
'Sengupta_Lazarus_REC_TEU_2011_2020_v02.csv' – annual time series of seaward expansion (km^2) and reported container throughput (millions TEU) between 2011–2020 for 43 of the world's top 100 container seaports in 2020, as ranked by reported container throughput (Lloyd's List, 2021). Dataset includes Year, Seaport, Country, Region, Reclaimed area (km^2) [raw measurement], and Reclaimed area (km^2) [smoothed with a Savitzky–Golay filter], and TEU (millions), collated from archived Lloyd's List reports.
Sengupta_Lazarus_REC_TEU_totals_v02.csv' – Simplified dataset listing total seaward expansion (km^2) and container throughput in 2020 for 66 of the world's top 100 container seaports in 2020, as ranked by reported container throughput (Lloyd's List, 2021). Dataset includes Seaport, Country, Region, Reclaimed area (km^2) [smoothed with a Savitzky–Golay filter], ranked list of seaports by expansion extent, and TEU (millions) handled in 2020, and Lloyd's List rank in 2020 (Lloyd's List, 2021).
'Sengupta_Lazarus_2023_ports_excluded.csv' – contains list of 34 ports excluded from thus analysis because they are either not on an open coastline (e.g. estuarine, riverine) or expanded less than 1 km^2 seaward between 1990–2020.
'RECLAIM_port_trajectories_v7.ipynb' – Jupyter notebook for data wrangling and plotting figures presented in Sengupta &amp; Lazarus (2023). (Note that this notebook does not produce the map-based figures presented in that work.) The method for calculating reclaimed area over time in Google Earth Engine (GEE) is described in Sengupta et al. (2023), and the GEE code is available here: https://github.com/dhritirajsen/Mapping_Coastal_land_reclamation These data and code are also available here: https://github.com/edlazarus/Seaports</span
FIGURE 7 in The odd one in: re-diagnosis and phylogenetic placement of the Assam Day Gecko Cnemaspis assamensis Das & Sengupta 2000 (Squamata: Gekkonidae)
No full textFIGURE 7. Cnemaspis assamensis (ZSIWGRC3068): (A) dorsal view (B) ventral view after preservation.Published as part of Sengupta, Shruti, Purakayasta, Jayaditya, Anandan, Nitesh, Das, Madhurima, Chan, Kin Onn & Murthy, Channakesava, 2021, The odd one in: re-diagnosis and phylogenetic placement of the Assam Day Gecko Cnemaspis assamensis Das & Sengupta 2000 (Squamata: Gekkonidae), pp. 581-593 in Zootaxa 5048 (4) on page 589, DOI: 10.11646/zootaxa.5048.4.7, http://zenodo.org/record/555682
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Spatio-temporal growth of disturbances in a boundary layer and energy based receptivity analysis
No full textIn fluid dynamical systems, it is not known a priori whether disturbances grow either in space or in time or as spatio-temporal structures. However, for boundary layers, it is customary to treat it as a spatial problem and some limited comparison between prediction and laboratory experiments exist. In the present work, the receptivity problem of a zero pressure gradient boundary layer excited by a localized harmonic source is investigated under the general spatio-temporal framework, using the Bromwich contour integral method. While this approach has been shown to be equivalent to the spatial study, for unstable systems excited by a single frequency source [T. K. Sengupta, M. Ballav, and S. Nijhawan, Phys. Fluids6, 1213 (1994)], here we additionally show, how the boundary layer behaves when it is excited (i) at a single frequency that corresponds to a stable condition (given by spatial normal-mode analysis) and (ii) by wideband frequencies, that shows the possibility of flow transition due to a spatio-temporally growing forerunner or wave front. An energy based receptivity analysis tool is also developed as an alternative to traditional instabilitytheory. Using this, we reinterpret the concept of critical layer that was originally postulated to explain the mathematical singularity of inviscid disturbance field in traditional instabilitytheory of normal modes
Tipping points in fitness landscape of heterogeneous populations
No full textPredicting fitness of biologically-active populations, communities or systems in fluctuating environments is a long-standing challenge. Phenotypic plasticity and bet-hedging strategy, two key evolutionary traits living systems harness to optimize fitness in dynamic environments, have been widely reported yet how interplays therein could mediate fitness landscapes of heterogeneous populations remain unknown. Leveraging the financial asset pricing model, here we provide a dynamical framework for fitness of heterogeneous populations, underpinned by the interrelations between sub-populations exhibiting phenotypic plasticity and bet-hedgeding. Our framework, independent of the definition of fitness, employs a nonlinear difference equation to present fitness dynamics, and capture the emergence of tipping points, marking the onset of critical state transitions which lead to catastrophic shifts. This study identifies limits on the selective advantage conferred by bet-hedging through reduction in the temporal variance of fitness, with far-reaching ramifications on our current understanding of hedging-mediated fitness enhancement of a population. The lower bound of the effective fitness variance is set by a maximum number of bet-hedgers, beyond which the fitness landscape approaches critical transition, as confirmed by critical slowing down in the vicinity of tipping points. We estimate the scaling law for the critical slowing down numerically and derive the characteristic recovery time for heterogeneous populations. Taken together, our work provides a generic theoretical framework to quantify fitness dynamics and predict critical transitions in heterogeneous populations. The results can be extended further to model fitness landscapes of natural and synthetic multi-species consortia exposed to environmental fluctuations mimicking climatic shifts and immunopathological settings.R-AGR-3401 - A17/MS/11572821/MBRACE - part UL - SENGUPTA AnupamR-AGR-3692 - C19/MS/13719464/TOPOFLUME - SENGUPTA AnupamU-AGR-6003 - IAS-AUDACITY CAMEOS - SENGUPTA Anupam14. Life below water15. Life on land13. Climate actio
High Economic Growth, Equity and Sustainable Energy Development of India
No full textIndia has been experiencing sustained high economic growth in the recentyears. However, there exists substantial amount of unacceptable poverty among the people in the country. The expressions of symptoms of such poverty include among others inadequate educational and health attainment of the people and lack of access to basic amenities like modern clean energy, safe water and sanitation which are crucial determinants of capability development. There exists in fact significant amount of energy poverty among the people, particularly in the rural India which has more than 70% share of its population, in the form of use of traditional inefficient biomass as the primary fuel with injurious health effect and the lack of connectivity of the households with electricity. The eleventh five year plan of India which has recently been initiated has taken the approach of inclusive faster growth for the development of the Indian economy. This paper analyses the implications of this high inclusive growth in respect of the twin challenges of environmental sustainability of the energy use required by such growth and the removal of energy poverty, which have to be addressed in India's energy planning. The paper defines the concept of sustainable development and points out its resource accounting implications in respect of energy related resource use. It focuses in this context on the instrumental role of the efficiency of energy use and energy supply, fuel composition and technology in determining the strength of the linkage between the GDP growth and the growth of energy use and that between the energy use and the pollution intensity of energy. The paper also defines, on the other hand, the notion of energy poverty and discusses the problem of equity and energy development in a dual society like that of India. It then reviews the past trend and pattern of energy use and the future projections of energy requirement and supply with special reference to the twin issues of equity and environmental sustainability. In this context it makes a decomposition analysis of the past energy use and CO2 emissions in India for examining its environmental sustainability and if economic reforms of India could make any impact on it. It makes further a brief review of the methodologies of projections and policy planning for the future energy sector development in India as existing in the recent literature. Finally, the paper discusses certain selected issues of energy security and macroeconomic viability of such energy development in the background of the sustained steep rise of oil prices and high cost of carbon free new technologies. It concludes by highlighting certain policy issues relating to pricing, technology and institution for the attainability of inclusive growth and particularly for meeting the gaps in such attainment that would possibly remain as per the existing alternative projections for the future. However, this paper does not pay any special attention to the climate change related global policy issues that would affect India and gives priority to the national level issues relating to energy equity and energy related environmental sustainability of Indian development.
BLM potentiates c-Jun degradation and alters its function as an oncogenic transcription factor. Priyadarshini et al.
No full textRaw data for Westerns, autoradiogram and imagin
Envisioning the Future of Mumbai / Bombay, Strategic Planning as a Tool for Inclusion or further Centralisation
No full textThe paper aims at exploring recent changes in the urban planning domain in the Indian megalopolis of Mumbai/Bombay, with a focus on an emerging form of document, the „Vision‟. The paper highlights the active role of private investors in promoting visions and in selecting the projects to be financed, especially through „ad hoc‟ created bodies. Such governance structure has been defined by some scholars as „governance-beyond-the-state‟, usually led by economic, political and socio-cultural coalitions. While acknowledging its capacity of restructuring a clearly fragmented and often ineffective institutional context, the paper questions if such form of governance is actually aiming at a larger inclusiveness or rather at strengthening the government in such a complex context. Concluding remarks also question the role of international agencies in the definition of the governance structure and in the promotion of (standardised) visions and strategies as innovative forms of planning
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