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  • 05. General::05.09. Miscellaneous::05.09.99. General or miscellaneous
  • Environmental sensing
  • Fish culture
  • Lipids
  • Elsevier  (49)
  • Fisheries Society of Nigeria  (40)
  • American Chemical Society
  • Periodicals Archive Online (PAO)
Collection
Keywords
Publisher
Years
  • 1
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    Blackening of Pompeian Cinnabar paintings: X-ray micro-spectroscopy analysis (2007)
    American Chemical Society
    Details
    Publication Date: 2017-04-04
    Description: Red Pompeian paintings, very famous for their deep intensity, are currently suffering from darkening. The origins of this darkening degradation are not clearly identified yet and remain a major issue for curators. In the specific case of cinnabar (HgS)-based red pigment, a photoinduced conversion into black metacinnabar is usually suspected. This work is focused on the blackening of red cinnabar paintings coated on a sparry calcite mortar. Different samples exhibiting different levels of degradation were selected upon visual observations and analyzed by synchrotron-based microanalytical techniques. Atomic and molecular compositions of the different debased regions revealed two possible degradation mechanisms. On one hand, micro X-ray fluorescence elemental maps show peculiar distributions of chlorine and sulfur. On the other hand, X-ray absorption spectroscopy performed at both Cl and S K-edges confirms the presence of characteristic degradation products: (i) Hg- Cl compounds (e.g., corderoite, calomel, and terlinguaite), which may result from the reaction with exogenous NaCl, in gray areas; (ii) gypsum, produced by the calcite sulfation, in black coatings. Metacinnabar is never detected. Finally, a cross section was analyzed to map the in-depth alteration gradient. Reduced and oxidized sulfur distributions reveal that the sulfated black coating consists of a 5-ím-thick layer covering intact cinnabar.
    Description: Published
    Description: 7484-7492
    Description: reserved
    Keywords: Microspectroscopy Analysis ; 05. General::05.09. Miscellaneous::05.09.99. General or miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 2
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    An automatic procedure to forecast tephra fallout (2008)
    Elsevier
    Details
    Publication Date: 2017-04-04
    Description: Tephra fallout constitutes a serious threat to communities around active volcanoes. Reliable short-term 13 forecasts represent a valuable aid for scientists and civil authorities to mitigate the effects of fallout on the 14 surrounding areas during an episode of crisis. We present a platform-independent automatic procedure with Q1 15 the aim to daily forecast transport and deposition of volcanic particles. The procedure builds on a series of 16 programs and interfaces that automate the data flow and the execution and subsequent postprocess of fallout 17 models. Firstly, the procedure downloads regional meteorological forecasts for the area and time interval of 18 interest, filters and converts data from its native format, and runs the CALMET diagnostic model to obtain the 19 wind field and other micro-meteorological variables on a finer local-scale 3-D grid defined by the user. 20 Secondly, it assesses the distribution of mass along the eruptive column, commonly by means of the radial 21 averaged buoyant plume equations depending on the prognostic wind field and on the conditions at the vent 22 (granulometry, mass flow rate, etc). All these data serve as input for the fallout models. The initial version of 23 the procedure includes only two Eulerian models, HAZMAP and FALL3D, the latter available as serial and 24 parallel implementations. However, the procedure is designed to incorporate easily other models in a near 25 future with minor modifications on the model source code. The last step is to postprocess the outcomes of 26 models to obtain maps written in standard file formats. These maps contain plots of relevant quantities such 27 as predicted ground load, expected deposit thickness and, for the case of or 3-D models, concentration on air 28 or flight safety concentration thresholds
    Description: Published
    Description: 767-777
    Description: 3.6. Fisica del vulcanismo
    Description: 4.3. TTC - Scenari di pericolosità vulcanica
    Description: JCR Journal
    Description: reserved
    Keywords: Tephra fallout ; volcanoes ; 04. Solid Earth::04.08. Volcanology::04.08.08. Volcanic risk ; 05. General::05.09. Miscellaneous::05.09.99. General or miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 3
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    Geosciences and the stewardship of our planet (2015)
    Elsevier
    Details
    Publication Date: 2020-02-24
    Description: The time for a first book on Geoethics has come. The faster, greedier pace of society and globalization demands it. The comfortable life of scholars in the ivory tower is coming to a rude awakening. People demand understandable information on geohazards, judges condemn scientist and engineers for lack of communication, indigenous people rise in anger accusing experts of misleading them, attempts to avoid transparency in developments still exist, the helplessness of technology to deal with nuclear waste becomes more evident everyday and nature exposes shortcuts in constructing critical facilities with her own awesome force.....
    Description: Published
    Description: XXI-XXII
    Description: 3T. Pericolosità sismica e contributo alla definizione del rischio
    Description: 4V. Vulcani e ambiente
    Description: 4A. Clima e Oceani
    Description: 5A. Energia e georisorse
    Description: 6A. Monitoraggio ambientale, sicurezza e territorio
    Description: reserved
    Keywords: Geoethics ; Philosophy ; Geosciences ; Geoscientists ; Ethics ; Earth Sciences ; Sustainability ; Research Integrity ; Professional Ethics ; Geoscience communication ; Responsibility ; Stewardship ; Planet ; Earth ; 05. General::05.03. Educational, History of Science, Public Issues::05.03.99. General or miscellaneous ; 05. General::05.08. Risk::05.08.99. General or miscellaneous ; 05. General::05.09. Miscellaneous::05.09.99. General or miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: book chapter
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  • 4
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    Selenium mobilization in soils due to volcanic derived acid rain: An example from Mt Etna volcano, Sicily (2011)
    Elsevier
    Details
    Publication Date: 2017-04-04
    Description: The significant amounts of selenium(Se)emitted by volcanoesmay have important impact on human health due to the narrow range between nutrition requirement and toxic effects for living organisms upon Se exposure. Although soils play a key role in determining the level in food and water and thereby human health, little is known about the behaviour of Se in volcanic soils. In this work we evaluated the Se release during rainwater–soil interaction under controlled conditions using soils collected on the flanks of Etna volcano and synthetic rain. Seleniumconcentrations in soil leachate solutions displayed a spatial distribution, which cannot be explained by plume deposition, total Se soil concentrations or the presence of Fe oxides. Instead, Al compounds and to a minor extent SOM were identified as the active phases controlling the selenate mobilization during interaction with sulphate-containing rainwater. This shows the importance of soils as reactive interfaces. Selenium is mobilized when volcanic-derived acid rain interacts with poorly developed soils close to the crater. This geogenic process might influence the chemical composition of groundwater and as a result, human health.
    Description: Published
    Description: 235–244
    Description: 4.4. Scenari e mitigazione del rischio ambientale
    Description: JCR Journal
    Description: reserved
    Keywords: Selenium ; Volcanic soils ; Geogenic ; Volcanoes ; Contamination ; Groundwater ; 05. General::05.02. Data dissemination::05.02.01. Geochemical data ; 05. General::05.08. Risk::05.08.01. Environmental risk ; 05. General::05.09. Miscellaneous::05.09.99. General or miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 5
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    Geoethics: ethical challenges and case studies in Earth Science (2015)
    Elsevier
    Details
    Publication Date: 2017-04-04
    Description: Key Features. Written by a global group of contributors with backgrounds ranging from philosopher to geo-practitioner, providing a balance of voices. Includes case studies, showing where experts have gone wrong and where key organizations have ignored facts, wanting assessments favorable to their agendas. Provides a much needed basis for discussion to guide scientists to consider their responsibilities and to improve communication with the public. Description. Edited by two experts in the area, Geoethics: Ethical Challenges and Case Studies in Earth Sciences addresses a range of topics surrounding the concept of ethics in geoscience, making it an important reference for any Earth scientist with a growing concern for sustainable development and social responsibility. This book will provide the reader with some obvious and some hidden information you need for understanding where experts have not served the public, what more could have been done to reach and serve the public and the ethical issues surrounding the Earth Sciences, from a global perspective. Table of contents. Section 1: Introduction Section 2: Philosophical reflections Section 3: The ethics of practice Section 4: Man made hazards Section 5: Natural hazards Section 6: Exploitation of resources Section 7: Low income and indigenous communities Section 8: Geoscience community
    Description: Published
    Description: 3T. Pericolosità sismica e contributo alla definizione del rischio
    Description: 5T. Sorveglianza sismica e operatività post-terremoto
    Description: 4V. Vulcani e ambiente
    Description: 5V. Sorveglianza vulcanica ed emergenze
    Description: 4A. Clima e Oceani
    Description: 6A. Monitoraggio ambientale, sicurezza e territorio
    Description: open
    Keywords: Geoethics ; Philosophy ; Natural hazards ; Man made hazards ; Georesources ; Low income countries ; Geoscience community ; Communication ; Geoeducation ; Natural risks ; 04. Solid Earth::04.06. Seismology::04.06.11. Seismic risk ; 04. Solid Earth::04.08. Volcanology::04.08.08. Volcanic risk ; 05. General::05.03. Educational, History of Science, Public Issues::05.03.99. General or miscellaneous ; 05. General::05.08. Risk::05.08.99. General or miscellaneous ; 05. General::05.09. Miscellaneous::05.09.99. General or miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: book
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  • 6
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    The Meaning of Geoethics (2015)
    Elsevier
    Details
    Publication Date: 2017-04-04
    Description: This chapter outlines a framework of the issues addressed by geoethics. Starting from an etymological analysis of the word “geoethics,” we identify the cultural basis on which to expand the debate on geoethics, while also proposing for consideration by the scientific community some questions that may guide the development of future research and practice in geosciences. We attempt to define some fundamental points that, in our opinion, will strengthen geoethics and help its development. The goal of geoethics is to suggest practical solutions and provide useful techniques, and also to promote cultural renewal in how humans perceive and relate to the planet, through greater attention to the protection of life and the richness of the Earth, in all its forms. As each science does, geoethics should also be able to present an image of the world, pointing out the manner in which it can be understood, investigated, designed, and experienced.
    Description: Published
    Description: 3-14
    Description: 3T. Pericolosità sismica e contributo alla definizione del rischio
    Description: 4V. Vulcani e ambiente
    Description: 4A. Clima e Oceani
    Description: 5A. Energia e georisorse
    Description: 6A. Monitoraggio ambientale, sicurezza e territorio
    Description: reserved
    Keywords: Etymological analysis ; Geoethics ; Geoscientists oath ; Responsibility ; Society ; 05. General::05.03. Educational, History of Science, Public Issues::05.03.99. General or miscellaneous ; 05. General::05.09. Miscellaneous::05.09.99. General or miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: book chapter
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  • 7
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    The immune response of tilapia Oreochromis mossambicus and its susceptibility to Streptococcus iniae under stress in low and high temperatures (2008)
    Elsevier
    Details
    Publication Date: 2021-05-19
    Description: Mozambique tilapia Oreochromis mossambicus acclimated to 27 °C were then held at 19, 23, 27 (control), 31 and 35 °C, and were examined for non-specific cellular and humoral responses after 12–96 h. Total leucocyte count decreased significantly when fish were transferred to 19 and 23 °C after 48 and 96 h, and when transferred to 35 °C over 12–96 h, respectively. Respiratory burst decreased significantly when fish were transferred to 19, 31 and 35 °C over 24–96 h, whereas phagocytic activity and phagocytic index decreased significantly when fish were transferred to low temperatures (19 and 23 °C) and high temperatures (31 and 35 °C) over 12–96 h. Lysozyme activity decreased significantly when fish were transferred to 19 °C after 12–96 h, but increased significantly when transferred to 31 and 35 °C over 48–96 h. Alternative complement pathway (ACH50) also decreased significantly when transferred to 19 and 23 °C after 12 h, but increased significantly when transferred to 31 and 35 °C after 24 h. In another experiment, tilapia reared at 27 °C were injected intraperitoneally with Streptococcus iniae at a dose of 1 × 107 colony-forming units (cfu) fish−1, and then reared onward at water temperatures of 19, 23, 27 (control), 31 and 35 °C. Over 48–168 h, the cumulative mortality of S. iniae-injected fish held in 19 and 35 °C was significantly higher than that of injected-fish held in 23, 27 and 31 °C. It is concluded that transfer of tilapia O. mossambicus from 27 °C to low temperatures (19 and 23 °C) after 12 h, and transfer of fish from 27 °C to high temperatures (31 and 35 °C) reduced their immune capability. Moreover, tilapia under temperature stress at 19 and 35 °C from 27 °C decreased its resistance against S. iniae.
    Description: International Cooperation Development Fund of Taiwan
    Description: Published
    Description: Oreochromis mossambicus; Streptococcus iniae; tilapia, tilapie, aquaculture
    Keywords: Immunology ; Fish culture ; Aquaculture ; Fish diseases ; Immunology ; Fish culture ; Fish diseases ; Temperature effects ; Aquaculture ; Biological stress
    Repository Name: AquaDocs
    Type: Journal Contribution
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  • 8
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    Growth performance of Clarias gariepinus fingerlings fed cooked breadfruit (Artocarpus altilis) seed meal as replacement for maize in outdoor hapas (2021)
    Fisheries Society of Nigeria | Lagos
    In:  http://aquaticcommons.org/id/eprint/23040 | 19325 | 2018-03-05 20:36:36 | 23040 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-12
    Description: The growth performance and nutrient utilization in Clarias gariepinus fingerlings fed cooked breadfruit (Artocarpus altilis) seed meal based diet as a replacement for maize, investigated for 8 weeks. Five (5) diets of breadfruit seed meal substituted for maize at different levels of inclusion (0%; 25%; 50%; 75% and 100%) were fed to the fingerlings at 5% body weight twice daily in hapa of 1m x 1m x 1m. The hapas wee submerged in a pond and each hapa stocked with 20 fingerlings of mean weight of 5.8~c0.00g. Evaluation of growth parameters nutrient utilization of the experimental diets showed that there was no significant difference (P〉0.05) in mean final weight (MFW); specific growth rate (SGR); feed conversion rate (FCR) protein efficiency ratio (PER) and apparent net protein utilization (ANPU) among the treatments. The results suggested a net advantage of replacing dietary maize with cooked breadfruit seed meal for Clarias gariepinus fingerlings at 50% and above levels of inclusion under the condition of the experiment.
    Description: Includes:- 4 tables.;10 refs.
    Keywords: Aquaculture ; Clarias gariepinus ; Nigeria ; Makurdi ; freshwater environment ; Fish culture ; Feeding experiments ; Growth rate ; Diets
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 292 - 296
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  • 9
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    Evaluation of pawpaw leaf-based diets (Carica papaya) on growth and survival of African catfish (Clarias gariepinus) fingerlings reared in plastic bowls (2021)
    Fisheries Society of Nigeria | Lagos
    In:  http://aquaticcommons.org/id/eprint/23049 | 19325 | 2018-03-06 15:26:25 | 23049 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-12
    Description: 200 fingerlings of African catfish (Clarias gariepinus) of average weight of 22.8~c0.04g were used to investigate the nutritive value of Pawpaw (Carica papaya) leaf-based diets. Five (5) isocaloric and iso-nitrogenous diets containing fishmeal protein at a rate of 0%, 25%, 50%, 75%, and 100% along with the pawpaw leaf were formulated. The diet without the pawpaw leaf meal serves as the control. The fish fingerlings were fed at 5% body weight per day for 56 days in plastic bowls. It was observed at the end of the experiment that pawpaw leaf meal was suitable as a protein supplement when incorporated at 50% replacement. The body weight gain, specific growth rate (SGR) and food conversion ratio (FCR) values of 18.68g, 1.07%/ day and 4.72 respectively were highest in diet with 50% replacement closely followed by diet with 25% replacement. Based on the results, it could be recommended that in practice 50% replacement of pawpaw leaf meal with fish meal is optimal in practical diet of African catfish (Clarias gariepinus) fingerlings. Nevertheless, complete replacement of pawpaw leaf meal decreases growth rate and should not be used in Clarias gariepinus fingerlings.
    Description: Includes: - 3 tables.;5 refs.
    Keywords: Aquaculture ; Clarias gariepinus ; Carica papaya ; Nigeria ; freshwater environment ; Fish culture ; Feeding experiments ; Diets
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 320 - 324
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  • 10
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    Effect of stocking density on the growth rates of Clarias gariepinus in a floating hapa system (2021)
    Fisheries Society of Nigeria | Lagos
    In:  http://aquaticcommons.org/id/eprint/23037 | 19325 | 2018-03-05 09:18:00 | 23037 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-12
    Description: An experimental growth trial in floating net-hapas at three stocking densities in concrete pond was carried out. 4.68 5.25g mean individual weight fish were stocked at 25, 50 and 100 per m3. A 40% protein balanced diet was used as feed. The results of the study showed no statistical significant difference in growth among the three treatments. Food conversion ratios ranged in 1.60 to 1.82, and specific growth rates were between 3.80 and 4.16%/day. The result suggests that culture of C. gariepinus at a density of 50/m3 and production of 4.15kg/m3 in 84 days with production of 8.30kg/m3 in a growing season of 180 days is possible using the net-hapa systems enclosed in a concrete pond.
    Description: includes:- 2 tables.;8 refs.
    Keywords: Aquaculture ; Clarias gariepinus ; Nigeria ; Alau L. ; freshwater environment ; Fish culture ; Stocking density ; Growth rate ; Floating cages
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 276 - 278
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