• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 12
  • 1
  • Tagged with
  • 15
  • 5
  • 4
  • 4
  • 3
  • 3
  • 3
  • 3
  • 3
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Influence of bioremediation on the chemical and nutritional composition of produce from crude oil-polluted sites

Odukoya, Johnson Oluwaseun January 2015 (has links)
The influence of crude oil-contaminated and remediated sites on agrifood production is not clearly understood. To address this knowledge gap, the research was divided into two stages involving: (1) assessment of the efficiency of two bioremediation strategies to support hydrocarbons degradation as well as agrifood production with the initial analysis of the experimental materials, and (2) evaluation of the effect of different crude oil remediation intervention values (CRIV) on selected vegetables (Brassica juncea, Brassica oleracea, Lactuca sativa and two different cultivars of Solanum lycopersicum). Results from the first stage showed that the crude oil used had a pristane/phytane ratio of 0.98 (within the 0.8 – 3.0 range of most crude oils), higher concentrations of C10 – C14, C15 – C20 and C21 – C27 alkanes than the C28 – C36 alkanes including higher concentrations of two of the US EPA priority pollutant polycyclic aromatic hydrocarbons (PAHs) - phenanthrene and anthracene. Four treatments were prepared in which weekly tillage enhanced the degradation of C15 – C20 and C21 - C27 alkanes in the Remediation by Enhanced Natural Attenuation (RENA) treatment. The two bioremediation strategies (RENA and bioaugmentation) enhanced PAHs degradation compared with the remediation-study control treatment while only RENA application among the two approaches supported the growth of B. juncea. Although there was no statistical significant difference (p > 0.05) between the major dietary mineral contents of samples from the various treatments compared with the control treatment samples, RENA application affected the Cr, Zn and Pb contents. Meanwhile, the Ca/P (> 1.0) and Na/K (< 0.60) ratios of all the harvested samples imply that they provide a good source of these minerals for bone formation and would not contribute to high blood pressure. The crude oil used also deterred the attack of juvenile caterpillars of cabbage white butterfly. Findings from the second stage revealed that the yield of the green leafy vegetables including one of the selected tomato cultivars (Micro-Tom), was in most cases impaired at CRIV ≥ 3,000 mg/kg total petroleum hydrocarbon (TPH). Compared with the control treatment samples’ composition, crude oil stress at 10,000 mg/kg TPH enhanced the concentration of K, Mn and crude protein of B. oleracea and L. sativa as well as the sucrose, total sugars, total phenolics and total flavonoids contents of the latter vegetable. Sucrose was also only detected in M82 tomato cultivar samples from the crude oil-containing treatments. The Cd content of B. oleracea, Pb contents of: L. sativa and M82 tomato harvested samples were all below the FAO/WHO Codex Alimentarius Commission 2015 recommended maximum levels. However, tartaric acid was only detected in B. oleracea and L. sativa samples from the 10,000 mg/kg TPH treatment as well as in M82 tomato cultivar samples from the treatment involving CRIV of 5,000 mg/kg TPH. Generally, the yield of these crops in response to crude oil contamination varied in which B. juncea had the least tolerance to crude oil stress among the green leafy vegetables tested. Most of the quality parameters in the two tomato cultivars were not affected by CRIV between 750 - 5,000 mg/kg TPH with p-xylene having the greatest toxic potential among the VOCs emitted from the 5,000 mg/kg TPH treatment. The research findings, under the experimental conditions, indicated the effectiveness of RENA for the degradation of low molecular weight PAHs and its agricultural benefits. They also suggest that crude oil-contaminated sites at ≤ 3,000 mg/kg TPH present a similar growing environment to a clean site for agrifood production and the possibility that crude oil stress at 10,000 mg/kg TPH could enhance crop quality. Nonetheless, the contribution of bio- accumulated PAHs in these crops to the food chain demands further investigation.
12

Bild och begrepp : Heideggers läsning av Kant ur ett fenomenologiskt perspektiv / Image and indication : Heidegger's reading of Kant from a phenomenological perspective

Franzén, Nils January 2011 (has links)
This thesis explores some key aspects of early Heidegger’s interpretations of Kant from a phenomenological perspective. In general terms, it analyzes Heidegger’s claim that Kant’s faculties share a common root in the transcendental imagination, as a critical development of motives found in Husserl’s phenomenology. More precisely, the thesis argues that the motive for deriving Kant’s first faculty, intuition, from the synthesis of imagination can be understood as an attempt to account for the receptivity of a finite subject, without yielding to a causal description of sensibility. Phenomenology shares this problem with Kant’s critical philosophy. Concerning the claim that the second faculty, understanding, originates from the transcendental imagination, Heidegger connects it to his ambition of liberating Kant from a Cartesian heritage, where understanding is conceived as an independent faculty, disconnected from time and sensibility. The thesis explores this motive in relation to Husserl’s claim that the independent use of understanding in the forming of judgments and concepts –is derived from its function in the service of intuition. The belonging together of intuition and understanding is a core aspect of phenomenology, present from its breakthrough in Husserl’s Logical Investigations to his last writings in The Crisis of the European Sciences and Transcendental Phenomenology. A general ambition of the thesis is, through a reading of Heidegger’s interpretations of Kant, to shed some light on this fact, and hopefully thereby – at least to some extent – to deepen our understanding of the phenomenological project as such.       Although the thesis’ primary concern is not polemical, on some occasions it criticizes other interpreters of Heidegger’s relation to Kant for neglecting or wholly rejecting the phenomenological point of departure of Heidegger’s interpretations.
13

Vägen från ilska till ansvar: : En översättning om självinsikt och förlåtelse med översättningsteoretisk kommentar / The Road From Rage to Responsibility: : A Translation About Insight and Forgiveness with Translation Commentary

Sundquist, Pontus January 2021 (has links)
Denna kandidatuppsats består av en egen översättning från engelska till svenska av första kapitlet från författaren Jesse Lee Petersons verk From Rage to Responsibility: Black Conservative Jesse Lee Peterson and America Today. Uppsatsen består dessutom av en källtextanalys samt översättningskommentarer som exemplifierar och diskuterar översättarens tillvägagångssätt i att åstadkomma en översättning som uppnår dess syfte. Syftet har primärt varit att överföra källtextinnehållet till måltexten och den djupare förståelse som förmedlas relaterat till ilska, självinsikt, förlåtelse och ansvar, på ett sätt som samtidigt bevarar författarstilen i möjligaste mån. Detta inkluderar en överföring av författarens lättsamma stil och användning av verbala och talspråkliga drag, idiom och kulturreferenser, samt en anpassning av syntax. För att åstadkomma detta har framförallt översättningsteorier och begrepp från Benjamin Walter och Theo Hermans tillämpats under översättningsprocessen och i översättningskommentarerna. / This essay is based on my own translation of the first chapter of author Jesse Lee Peterson’s work From Rage to Responsibility: Black Conservative Jesse Lee Peterson and America Today, in the language pair English to Swedish. The essay also includes a source text analysis, as well as a commentary on my own translation, where the translator’s approach in achieving a target text that accomplishes its aim is discussed and exemplified. The aim has primarily been to transfer the source text’s ideational core to the target text and the deeper understanding that is being conveyed, regarding rage, insight, forgiveness and responsibility, in an equivalent manner which stays faithful to the style of the author, to the extent that is considered possible. This includes the transference of the author’s cultural references, easy going and simple stylistic approach, along with the informal and colloquial language use, as well as a syntactic target language adaptation. To achieve this, the ideas and terms from the translation theorists Benjamin Walter and Theo Hermans have been applied during the translation process and in the commentary.
14

Life Cycle Assessment of Cooking Fuels : A Case Study in Tamil Nadu, India

Gangavarapu, Venkata Teja January 2024 (has links)
Cooking stove technologies are crucial for meeting household energy needs, yet many lack access to clean solutions, leading to Household Air Pollution (HAP) and associated health risks. There is an urgent need to understand and mitigate environmental and health challenges posed by traditional stoves burning solid fuels like fuelwood. This thesis examines the environmental and human health impacts of different cooking fuel options using a Life Cycle Assessment (LCA) approach. A case study is developed in the state of Tamil Nadu in India, considering different cooking fuel mix scenarios and sustainable transition in the sector. Key impact categories such as Global Warming Potential (GWP), Fine Particulate Matter Formation, and Human Health are examined. Findings reveal persistent challenges, particularly with solid fuels like firewood, contributing to HAP and adverse health effects. Transitioning to renewable energy sources such as Biogas and Electricity is crucial for mitigating environmental impacts and improving public health outcomes. Eliminating firewood in the Sustainable scenario fuel mix could result in a 43% reduction in GWP, an 87.5% reduction in delicate particulate matter, and a 75% improvement in human health. This study provides insights for policymakers to develop interventions promoting sustainable cooking practices and enhancing community well-being in Tamil Nadu and beyond. / Köksspis-teknologier är avgörande för att tillgodose hushållens matbehov, men miljontals saknar tillgång till rena matlagningslösningar, vilket leder till hushållsluftföroreningar (HAP) och associerade hälsorisker. Det finns ett brådskande behov av att förstå och mildra miljö- och hälsoutmaningar som traditionella spisar, som använder fasta bränslen såsom ved, innebär. Denna avhandling undersöker miljö- och hälsoeffekterna av olika alternativ för matlagningsbränsle med en livscykelanalys (LCA)-ansats. En fallstudie har utvecklats i delstaten Tamil Nadu i Indien, där olika scenarier för blandning av matlagningsbränslen och en hållbar övergång inom sektorn övervägs. Viktiga faktorer som global uppvärmningspotential (GWP), bildning av fint partikulärt material och människors hälsa undersöks noggrant. Resultaten avslöjar ihållande utmaningar, särskilt med fasta bränslen som ved, som bidrar till HAP och negativa hälsoeffekter. Övergången till förnybara energikällor som biogas och elektricitet är avgörande för att mildra miljöpåverkan och förbättra folkhälsan. Att eliminera ved i bränslemixen i det hållbara scenariet kan leda till en 43 % minskning av GWP, en 87,5 % minskning av fintpartikulärt material, och en 75 % förbättring i mänsklig hälsa. Genom att utnyttja insikterna från denna studie kan beslutsfattare och intressenter utveckla riktade insatser för att främja hållbara matlagningspraxis och förbättra välbefinnandet för samhällen i Tamil Nadu och vidare.
15

Kant och papegojan : Om exemplen i Kritik av omdömeskraften

Enström, Anna January 2011 (has links)
This essay is an examination of the examples in Kant’s Critique of Judgement. The examples which I have focused on all converge in an idea of wildness. These examples of the beautiful are illuminated by a culture-historical perspective, where the literary and scientific travelogue genre is of great importance. Apart from being exegetic and culture historical, my method is also analytic. The general ambition is to answer the question; what is the parrot doing in the third Critique and what makes it a better example of a free beauty than a jackdaw? Taking as point of departure Jacques Derrida’s notion of parergonality, the example is primarily understood as formative for the thesis, not only as illustrative. By analysing Kant’s use of the wild, exotic and colourful objects as examples the essay intends to show how imagination and understanding operates in the beautiful. The parrot thus corresponds with the role of imagination in its relation to understanding in aesthetic judgement. The examples manifest the strength of the imagination and how it dominates understanding through its wildness. The aim is to present a way to approach the restful contemplation that Kant ascribes to the mind in the experience of the beautiful as bearer of a movement with considerable importance. Rodolphe Gasché’s emphasis on the wild examples as a precognitive minimum for understanding and Hannah Arendt’s view on imagination as an ability of intuition without the presence of the object, have also been essential for my argument.

Page generated in 0.0479 seconds