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  • 2
    Publication Date: 2019-07-17
    Description: Titan's atmosphere produces a wealth of organic products from methane and nitrogen. These products, deposited on the surface in liquid and solid form, may interact with surface ices and energy sources to produce compounds of exobiological interest. Additional information is contained in the original extended abstract.
    Keywords: Geophysics
    Type: Eleventh Annual V. M. Goldschmidt Conference; LPI-Contrib-1088
    Format: text
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  • 3
    Publication Date: 2019-07-17
    Description: Saturn's largest moon Titan has a cold, very dense nitrogen atmosphere rich in methane and the hydrocarbon and nitride products of methane photolysis. Sources of energy for atmospheric chemistry include solar ultraviolet radiation, Saturn magnetospheric particles, and galactic cosmic rays. The chemistry of Titan's atmosphere, while interesting from the point of view of planetary photochemistry, is largely free radical driven and therefore not particularly suited to the synthesis of polymeric biomolecules or even their precursors. However, the nature of Titan's atmosphere, in particular its redox state (hydrogen escapes rapidly and is under abundant compared to in the giant planets), and the presence of a variegated surface make consideration of surface chemistry on Titan interesting from an astrobiological viewpoint. Additional information is contained in the original extended abstract.
    Keywords: Lunar and Planetary Science and Exploration
    Type: Forum on Innovative Approaches to Outer Planetary Exploration 2001-2020; 3; LPI-Contrib-1084
    Format: text
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Higher education 37 (1999), S. 105-131 
    ISSN: 1573-174X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Nature of Science, Research, Systems of Higher Education, Museum Science
    Notes: Abstract An increased value is being placed on quality teaching in higher education. An important step in developing approaches to better instruction is understanding how those who are successful go about improving their teaching. Thus, several years ago we undertook a program of research in which the concept of “reflection” provided the frame of reference. We envisaged reflection as a process of formative evaluation, and also saw links between reflection and metacognition. What we have documented and analyzed in detail are the reflective processes of six university professors in their day-to-day planning, instructing and evaluating of learners. The result is a metacognitive model and coding scheme that operationalize the process of reflection. Both provide a language for describing reflection and therefore a way to think about how to improve teaching. In this paper, we describe the research and the model and the contributions they make to our understanding of teacher thinking in higher education.
    Type of Medium: Electronic Resource
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  • 5
    Publication Date: 2021-07-08
    Description: Radiolarian number and/or flux rates extracted from Holocene and fossil sediments are used to help detect the presence of, type of (weak or strong), and exact location of the depocenter under an El Niño. These data, along with known provenances of certain radiolarians, support an earlier model that suggests a weak El Niño is a northern and coupled expression of a more southerly strong component dominated by eastern tropical Pacific water underlain by California current and gyre water.
    Keywords: Earth Sciences ; Oceanography ; PACLIM
    Repository Name: AquaDocs
    Type: conference_item
    Format: application/pdf
    Format: application/pdf
    Format: 87-90
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  • 6
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    Fishery research in East Africa | Jinja
    In:  http://aquaticcommons.org/id/eprint/17008 | 4230 | 2020-09-15 07:59:58 | 17008 | National Fisheries Resources Research Institute, Uganda
    Publication Date: 2021-07-10
    Description: The problems to be investigated when studying a fishery cover a range of subjects as great as that covered by the combined sciences of agriculture and animal husbandry. These two sciences, although they overlap, can by definition be limited, one to the study of plants and the other to the study of animals. No such limits can be set to the science of fishery research which includes the study of both plants and animals.
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 169-176
    Format: 7
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  • 7
    Publication Date: 2021-07-09
    Description: The collection of Triclads from the Austrian-Ceylonese hydrobiological mission originates from 23 streams in the mountains of the south of Sri Lanka. All collected animals are of the Dugesia gonocephala (Dug.) type. Unfortunately the determinable mature animals were very rare in the samples but it seems certain that all the Triclads, found by the mission, belong to Dugesia nannophallus, described by Ball in 1970 after two individuals from Dunhinda, Badulla (Prov. Uva, Sri Lanka).
    Description: Department of Fisheries, Fisheries Research Station, Ceylon now incorporated in: National Aquatic Resources Research and Development Agency, Sri Lanka
    Keywords: Biology ; freshwater organisms ; taxonomy ; Tricladida ; Sri Lanka
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 89-93
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  • 8
    Publication Date: 2022-05-25
    Description: Dataset: salmon_energy
    Description: Juvenile pink salmon energy density, wet, dry, frozen weights from F/V Great Pacific, R/V Miller Freeman cruises in the Coastal Gulf of Alaska, NE Pacific, 2001-2003. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/3108
    Description: NSF Division of Ocean Sciences (NSF OCE) OCE-0104622, National Oceanic and Atmospheric Administration (NOAA) unknown NEP NOAA
    Repository Name: Woods Hole Open Access Server
    Type: Dataset
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  • 9
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    In:  http://aquaticcommons.org/id/eprint/17077 | 4230 | 2020-08-29 21:09:49 | 17077 | National Fisheries Resources Research Institute, Uganda
    Publication Date: 2021-07-10
    Description: Though it may not be necessary for fishermen to have a detailed knowledge of the behaviour of fish it is likely that the more they Know about the habits of the fish they are hunting the more successful they will be. To Increase the efficiency of fishermen is not, however, the sole reason for undertaking studies on behaviour. Such studies are carried out by Research Officers who are seeking information which will enable them to give sound advice concerning the proper management of the particular fishery with which they are concerned. In all cases the aim must be to utilize existing stocks of fish efficiently and economically without waste. Adequate numbers of fish must be left to breed and young fish must be allowed to grow to a commercially valuable size.
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 97-99
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  • 10
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    In:  http://aquaticcommons.org/id/eprint/16946 | 4230 | 2020-08-30 16:02:07 | 16946 | National Fisheries Resources Research Institute, Uganda
    Publication Date: 2021-07-09
    Description: There are many hundreds of thousands of tons of fish in the rivers, swamps and lakes of East Africa. All these fish, which belong to many different species, are edible and from a valuable reserve of protein food that can never be completely exhausted. Though the numbers of these fish are now significantly less than they were in the early years of the century, they can never be brought to the point of extinction so nearly happened to some of the game animals in Africa. The survival of these fish is assured not because the demand for them is low, but because man finds them increasingly difficult to catch as their population density decreases. The existence of this automatic safety factor helps to explain the sometimes irresponsible, yet at the same time optimistic attitude, of fishermen who continue to fish in the hope of making an exceptional catch when they know that the stocks of fish are reaching a dangerously low level. Because of this persistence on the part of fishermen, it is usual to find fisheries reduced to such a low level that they are regulated by the economics of the industry rather than by any biological rules for their proper management. .
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 57-60
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