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  • General Chemistry  (1,562)
  • Nigeria  (1,093)
  • Deutschland
  • 2020-2022  (1,096)
  • 1940-1944  (1,565)
Collection
Keywords
Language
Years
Year
  • 1
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    In:  Mitt. Biol. Reichsanst. H. 63: 46-48
    Publication Date: 1941
    Description: Beschreibungen zum Gesundheitszustand einer Population von Nonnen, ihrer Lebens- und Vermehrungsfähigkeit im Zusammenhang mit dem Massenauftreten, aber auch dem Zusammenbrechen der Population KATASTER-BESCHREIBUNG: Verringerung der Populationssichte durch Räuber kann bei 95% liegen KATASTER-DETAIL:
    Keywords: Deutschland ; 1900-1940 ; Insekten ; Forst ; Pflanzenschädling
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  • 2
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    In:  Landw. Jahrbuch 89:793-808.
    Publication Date: 1940
    Description: Allgemeiner Bericht über Anpassungen der Landwirtschaft an das Klima, wie beispielsweise extensive und intensive Landwirtschaft, Fruchtfolge, Bodenbearbeitung, Frostschadenverhütung und Düngung. KATASTER-BESCHREIBUNG: - KATASTER-DETAIL: -
    Keywords: Deutschland ; 1. Hälfte 20. Jahrhundert ; Anbautermine ; Boden ; Landwirtschaft ; Niederschlag ; Temperatur ; Verdunstung ; Wassermangel ; Düngung ; Frost ; Sonnenscheindauer
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  • 3
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    In:  Kl. Mitt. Ver. Wasser-, Boden-, Lufthyg. 18: 125-130
    Publication Date: 1942
    Description: Bedeutung des Windes für den Wuchs, die Wasserversorgung und die Verbreitung des Samens und der Früchte von Pflanzen KATASTER-BESCHREIBUNG: Zusammenhang zwischen dem Wind und der mechanischen Schädigung von Blättern der Roßkastanie KATASTER-DETAIL: Wind +, dann Schädigung der Roßkastatienblätter +
    Keywords: Deutschland ; letzten 1000 Jahre ; Forst ; Wind
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  • 4
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    Deutsche Geophysikalische Gesellschaft, Hamburg
    In:  Herausgeberexemplar
    Publication Date: 2021-08-07
    Description: Die Jubiläumsschrift zum 75jährigen Bestehen der Deutschen Geophysikalischen Gesellschaft (DGG) enthält zahlreiche Beiträge von Mitgliedern zu vier Schwerpunkten: 1) Eine Aktualisierung der Geschichte der DGG vor allem zu den an Ereignissen reichen letzten 25 Jahren sowie Ergänzungen zu vorausgegangenen Darstellungen. 2) Die Darstellung der Geschichte geophysikalischer Institute und Institutionen in Deutschland inklusive eines Rückblicks auf das erfolgreiche Wirken ihrer verdienstvollen Persönlichkeiten. 3) Die Beschreibung einer Auswahl in der deutschen Geophysik angegangener Großprojekte der letzten 25 Jahre. 4) In Anlehnung an die Festschrift zum 50jährigen Gründungsjubiläum ist schließlich noch ein Kapitel zu geophysikalischen 'Detailthemen' ausgeführt. In ihm sind auch Beiträge enthalten, die Traditionslinien bzw. Arbeiten betreffen, die in der früheren DDR aufgenommen worden waren und z.T. keine direkte Fortsetzung an einer Nachfolgeinstitution gefunden haben.
    Description: commemorativepublication
    Keywords: 550 ; Geschichte der Geophysik ; Festschriften {Geophysik} ; Deutsche Geophysikalische Gesellschaft ; Deutschland ; Geophysik ; Geschichte ; FID-GEO-DE-7
    Language: German
    Type: anthology_digi
    Format: 226 S.
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  • 5
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    DGG, [Münster]
    In:  Herausgeberexemplar
    Publication Date: 2021-05-06
    Description: Wird heute genug für die wissenschaftliche und technologische Steuerung des sich immer rasanter vollziehenden globalen und regionalen Wandels der Bio- und Geosphäre getan? Hat die internationale Gemeinschaft die Kraft zu einem sinnvollen, übergreifenden "Umwelt-Management"? Geophysik kann auf Grund ihrer interdisziplinären Stellung innerhalb der Naturwissenschaften und mit ihren vielfältigen Beziehungen zur Technik zum effizienten Einsatz der Kräfte und Mittel beitragen - in einer Zeit weltweiter sozialer, politischer und eben auch ökologischer Konflikte. Geophysik kann notwendige Prioritäten wissenschaftlich begründen und verfechten und somit helfen, weittragende und konsensfähige Entscheidungen vorzubereiten, um gesellschaftliche Akzeptanz und Unterstützung für die Politik zu erreichen. Die Deutsche Geophysikalische Gesellschaft - getragen von ihrer Verantwortung um den Beitrag der Geophysik für die gemeinsame Zukunft - wendet sich im 75. Jahr ihres Bestehens mit dieser Denkschrift an die Öffentlichkeit. Teil I enthält einen Überblick zur Spezifik, zur Stellung, zu den Zielen und zur Bedeutung der Geophysik. Im Teil II stellen führende Geophysiker ausgewählte Beispiele moderner geophysikalischer Forschung vor. Teil III ist statistisch angelegt und gibt einen kurzen Überblick zu den in Deutschland angesiedelten Institutionen geophysikalischer Lehre und Forschung. Die Denkschrift "Mit Geophysik in die Zukunft" will Politiker, Industrielle, Wissenschaftler, Vertreter der Medien und interessierte Bürger erreichen, um im Interesse des Gemeinwohls zu angemessener Wissenschaftsförderung und kluger Zukunftsgestaltung beizutragen.
    Description: commemorativepublication
    Description: DFG, SUB Göttingen
    Keywords: 550 ; Wissenschaftsorganisation und -pflege {Geophysik} ; Geophysik ; Wissenschaft ; Forschung ; Deutschland ; FID-GEO-DE-7
    Language: German
    Type: anthology_digi
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  • 6
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    In:  http://aquaticcommons.org/id/eprint/4035 | 424 | 2011-09-29 16:40:09 | 4035 | Fisheries Society of Nigeria
    Publication Date: 2021-06-28
    Description: The paper highlights the concept of information and the significance of environmental and occupational hazards associated with pond fish production in Nigeria and discuss the possible options for the ways forward. The major raw material used in fish production system is the organic manure (cow dung, poultry droppings, porcine manure etc) that serves as substrate for heterotrophic production of bacteria and protozoa, which act as food for zooplankton and the fish. The pathogenic organisms (viruses, bacteria, protozoa's, and parasites), are noted for the potential hazard to the fish handlers and consumers. Nine species from seven genera of bacteria associated with fish diseases are found to have association with diseases of human such as typhoid fever, bacillary dysentery and other gastrointestinal tract related problems. Also the environmental contaminants in pond fish production become important because of its significance to consumers' acceptance of the fish products
    Keywords: Health ; Pollution ; Aquaculture ; Environment ; Nigeria ; aquaculture products ; aquaculturists ; biological pollutants ; fertilizers ; fish ponds ; hazards ; human diseases ; microbial contamination ; organic wastes ; pathogenic bacteria ; pathogens ; quality control ; Bacteria Protozoa ; Viruses
    Repository Name: AquaDocs
    Type: conference_item
    Format: application/pdf
    Format: application/pdf
    Format: 264-272
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  • 7
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    In:  http://aquaticcommons.org/id/eprint/4039 | 424 | 2011-09-29 16:40:25 | 4039 | Fisheries Society of Nigeria
    Publication Date: 2021-06-28
    Description: Aquaculture drive in the Niger Delta has necessitated the springing up of various forms of hatcheries in Nigeria in the area. The hatchery level is high as most fish farmers now want to produce their own fingerlings for the stocking of their production ponds for culture to market (table) size. The paper shows that there is a lot of market in the Niger-Delta for fresh fish. Majority of the numerous fish farmers are not well empowered to breed and produce fish seeds especially species most loved and eaten. The rising cost of materials in the Nigerian economy has become a bottleneck in the construction of more fish hatcheries for fingerling production. However, the assistance of multinationals has become very necessary to enhance its feasibility to encourage better involvement in the fish hatchery works. One remarkable area where assistance is being felt by the communities in the Niger-Delta is in fish farming and more so in the supply of fish fingerling to top fish farmers by The Shell Petroleum Development Company of Nigeria Limited (SPDC), a multinational oil company in the area. Few fish farmers have benefited from this. If more hatcheries are available to service and provide the needed fingerlings to stock the available water bodies such as, home backyard ponds, the 0.74 million hectares of brackish water, 1.01 million hectares of perennial swamps, and other marginal land available for aquaculture and properly managed, it will yield between 2.5 and 10 metric tones of fish depending on the species stocked and bred
    Keywords: Aquaculture ; Nigeria ; fish ; hatcheries
    Repository Name: AquaDocs
    Type: conference_item
    Format: application/pdf
    Format: application/pdf
    Format: 292-296
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  • 8
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    In:  library@fba.org.uk | http://aquaticcommons.org/id/eprint/4561 | 1256 | 2011-09-29 16:12:45 | 4561 | Freshwater Biological Association
    Publication Date: 2021-07-04
    Description: The Anambra River is the largest tributary of the lower Niger River below Lukoja. Between the months of May and November the river is subject to seasonal flooding from heavy precipitation and land runoff into the drainage system. During the flood phase, pools form on the floodplains (known as the fadama) and these pools receive materials and biota from the main river channel. The biota often includes representatives of freshwater vertebrates (including fishes) and invertebrates. On this brief note, the authors report on the macroinvertebrates found during preliminary studies on four fadama pools during the non-flood season between December 1994 and April 1995. 523 specimens were collected, of which 86% were arthropods, 9% were annelids (mostly Tubifex and Nais) and a few leeches (Hirudo), and 5% were gastropod molluscs of the arthropods, 75% were insects particularly Hemiptera and Diptera.
    Keywords: Ecology ; Limnology ; aquatic insects ; flood plains ; ponds ; Nigeria ; Anopheles ; Chironomus ; Notonecta ; Ranatra
    Repository Name: AquaDocs
    Type: article , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 160-162
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  • 9
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    In:  http://aquaticcommons.org/id/eprint/4053 | 424 | 2011-09-29 16:28:31 | 4053 | Fisheries Society of Nigeria
    Publication Date: 2021-06-29
    Description: This study was carried out to assess consumers' acceptance of kilishi prepared from Labeo coubie and Hyperopisus bebe occidentalis in Sokoto. The organoleptic properties (texture, odour, taste and flavour) of kilishi in its fresh form and under storage for 16 weeks were determined. The mean scores for the organoleptic assessment (6.90 and 7.19 for kilishi of Labeo and Hyperopisus respectively) showed that fish kilishi was highly acceptable. Hyperopisus kilishi recorded slightly higher mean scores for the tested organoleptic properties. The declining pattern of the sensory assessment scores with length of storage indicated that the optimum storage period under the room temperature for kilishi made from the experimental fish species in the study area was 6-8 weeks. Further research on appropriate storage methods is desirable. However, preparation of fish kilishi could be explored as alternative preservation technique to reduce fish spoilage especially during the glut in supply and to diversify fish products
    Keywords: Fisheries ; Chemistry ; Nigeria ; fish utilization ; fishery products ; organoleptic properties ; processed fishery products ; Hyperopisus bebe occidentalis ; Labeo coubie
    Repository Name: AquaDocs
    Type: conference_item
    Format: application/pdf
    Format: application/pdf
    Format: 376-381
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  • 10
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    In:  http://aquaticcommons.org/id/eprint/4056 | 424 | 2011-09-29 16:28:45 | 4056 | Fisheries Society of Nigeria
    Publication Date: 2021-06-29
    Description: The paper examines the resource utilization practices of the Lake Chad in view of the need for sustainable development of the natural resources of the area, which are being recklessly exploited. The issues of obnoxious fishing practices, inappropriate agricultural practices, indiscriminate grazing, reckless fuel-wood harvesting, water pollution etc were discussed. There are clear indications that the current resources utilization practices are pushing the natural resources of the area beyond the limit of their regenerative capacity. This is traceable to institutional weakness and inadequate management strategies at the Lake Chad basin. Suggestions were made towards witnessing a change of attitude to resource use, exploitation and management strategies
    Keywords: Management ; Conservation ; Fisheries ; Pollution ; Agriculture ; Nigeria ; Lake Chad ; agriculture ; deforestation ; grazing ; land use ; pollution control ; resource conservation ; resource management ; utilization ; water resources ; water supply
    Repository Name: AquaDocs
    Type: conference_item
    Format: application/pdf
    Format: application/pdf
    Format: 409-415
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