Cold-water corals are an important component of deep-sea ecosystems as they establish structurally complex habitats that support benthic biodiversity. These communities face imminent threats from increasing anthropogenic influences in the deep sea. Following the 2010 Deepwater Horizon blowout, several spill-impacted coral communities were discovered in the deep Gulf of Mexico, and subsequent mesophotic regions, although the exact source and extent of this impact is still under investigation, as is the recovery potential of these organisms. At a minimum, impacted octocorals were exposed to flocculant material containing oil and dispersant components, and were visibly stressed. Here the impacts of oil and dispersant exposure are assessed for the octocoral genus Paramuricea. A de novo reference assembly was created to perform gene expression analyses from high-throughput sequencing data. Robust assessments of these data for P. biscaya colonies revealed the underlying expression-level effects resulting from in situ floc exposure. Short-term toxicity studies, exposing the cold-water octocorals Paramuricea type B3 and Callogorgia delta to various fractions and concentrations of oil, dispersant and oil/dispersant mixtures, were also conducted to determine overall toxicity and tease apart the various components of the synergistic exposure effects. Finally, alterations in Paramuricea B3 gene expression profiles were inspected to characterize genome-wide changes induced by each treatment and putative genes under differential regulation. The experimental results provide evidence for a relatively high toxicity of chemical dispersants as compared to oil additions alone, elucidating the implications of applying oil dispersants to future oil spills. My findings revealed signatures of cellular stress in floc-exposed corals associated with xenobiotic metabolism, immune and inflammatory responses as well as transcriptional suppression of vital cellular components like ribosomal proteins. The data also suggests poor recovery potential in our coral samples exposed to floc. In addition, promising biomarker candidates were identified from the differential expression data for use in future spill-impact monitoring. / Biology

Following the DWH oil spill event, crude oil reaching the shoreline of Gulf of Mexico produced petroleum oil deposit with a range of distinct geometries, including sphere tar balls and horizontal tar sheets. Numerical models were developed based on the Deep Water Horizon oil spill conditions to evaluate the influence of deposit geometry on long term persistence of residual NAPL oil. Two extreme deposit geometries were modeled in this study: the horizontal tar sheet and the spherical tar ball. Both two-dimensional modeling approach and three-dimensional modeling approach were applied to compare two contrasting geometries. The two-dimensional model results showed that sheet geometry deposits exhibited a greater obstruction to groundwater flow relative to the spherical deposits and induced a larger sulfate reducing zone downgradient of the NAPL source, resulting in significantly greater sulfate-based biodegradation of benzene. Three-dimensional models were constructed to assess the influence of key geometry parameters on oil deposit fate and persistence. Three parameters affecting deposit's geometric structure were recognized, including the upper horizontal area of the sheet deposit, the thickness of the sheet deposit, and the radius of the sphere deposit. The three-dimensional model results suggested that thickness of the sheet deposit and radius of the sphere deposit were important geometry factors impacting the fate and long term persistence of residual NAPL oil in the coastal environment. However, the influence of deposit geometry differed depending on the solubility of the different NAPL components. When high solubility compound and low solubility compound both exist in the oil deposit, the influence of deposit geometry on benzene degradation was significant, while the influence on naphthalene was almost negligible. / Master of Science

Yes / This study investigates the mechanism by which knowledge spilled over from a firm’s research publication consequently spills into the focal firm as a form of proprietary knowledge when it is engaged in an emerging science-related technology. We define the knowledge spillover pool (KSP) as an evolving group of papers citing a paper published by a firm. Focusing on the recent development of artificial intelligence, on which firms have published actively, we compare the KSP conditions related to the increase in patents created by the focal firm with those created by external actors. Using a Cox regression and subsequent contrast test, we find that both an increasing KSP and an increasing similarity between the idea published by the focal firm and KSP are positively related to the proprietary knowledge creation of both the focal firm and external actors, with such relations being significantly stronger for the focal firm than for external actors. On the contrary, an increasing proportion of industry papers in the KSP is positively associated with the proprietary knowledge creation not only by the focal firm but also by external actors to a similar degree. We contribute to the literature on selective revealing and to the firms’ publishing strategies.

SCA Obbola är ett pappersbruk som satsar på framtiden och håller på att utöka sin produktion. Projektet kallas Expansion Obbola och fabriken planerar öka kapaciteten från 450 000 ton till 725 000 ton. Peab är utförandeentreprenad för projektet, arbetet startade år 2018 och förväntas vara färdigt till år 2023. I samarbete med Peab har ett examensarbete utförts på projektet Expansion Obbola för att ta reda på hur arbetet med materialspill ser ut i projektet i dagsläget och om möjligheten finns att minska mängden materialspill. Syftet med arbetet är att få en tydligare bild över materialspillet på projektet Expansion Obbola, för att vidare möjliggöra och utöka Peab:s arbete med materialspill på ett effektivt, ekonomiskt och miljövänligt sätt. Arbetet har även som syfte att bidra till Peab:s framtida arbete med materialspill. Vid produktionen av en ny byggnad uppskattas 30-40% av den totala kostnaden bestå av materialkostnader, vilket medför att om mängden materialspill kan begränsas kan det bidra till ett mer hållbart, ekonomiskt och miljövänligt arbete. Arbetet resulterade i att situationen på projektet Expansion Obbola består av svåra förutsättningar och att detta försvårar möjligheten till minskandet av materialspill betydligt. Tidspress, brist på ytor och begränsat med riktlinjer till hur man bör hantera materialspill är de främsta svårigheterna som projektet besitter. Efter genomförande av detta arbete anses det ändå finnas gott om utvecklingsområden för projektet gällande materialspill trots svårigheterna och några av de presenterade förslagen på hur man kan arbeta med att få en minskad mängd materialspill är följande: Ändra dag och tiden för revidering av ritningar, öka samarbetet mellan arbetsledare, byta virket vid formsättning till en lägre kvalité för att bespara på miljön samt utöka samarbetet med projektörerna. Projektet Expansion Obbola anses därav trots svåra förutsättningar, besitta goda möjligheter att förbättra sitt arbete med materialspill och potentiellt kunna minska mängden material som slängs i onödan. / SCA Obbola is a papermill that is investing in the future and is expanding its production. The project is called Expansion Obbola and they plan to increase their factory's capacity from 450,000 tonnes kraftliner to 725,000 tonnes. Peab is the contractor for the project, it started in 2018 and is expected to be completed by the year 2023. In collaboration with Peab, a report has been carried out on the Expansion Obbola project to find out how they work to minimize material waste. The report will also look into the current way of dealing with material waste and if the opportunity exists to reduce the amount of material waste even more. The purpose of the report is to get a clearer picture of the material waste on the project Expansion Obbola, to further enable and expand Peab's work with material waste in an efficient, economical and environmentally friendly way. The report also aims to contribute to Peab's future work with material waste in a positive way. During the production of a new building, it is estimated that 30-40% of total cost consists of material costs, which means that if the amount of material waste can be limited, it can contribute to a more sustainable, economical and environmentally friendly way of building. This report resulted in that the situation in project Expansion Obbola is consisting of some difficulties and that it significantly complicates the possibility of reducing the material waste. Pressured time schedule, lack of space and limited guidelines on how to handle material waste are the main difficulties that the project poses but after the completion of this report, it is still considered that there are plenty of development areas for the project regarding material waste. Some of the presented proposals on how to work to reduce the amount of material waste are: Changing the day and time for revision of drawings, increase the cooperation between supervisors, change the wood for casting to a lower quality to spare the environment and expand the collaboration with the designers. The Expansion Obbola project is therefore considered, despite difficult conditions, to have good opportunities to improve its work with material waste and potentially be able to reduce the amount of material that is thrown away unnecessarily.

The Deepwater Horizon oil drilling rig exploded on April 20, 2010, off the coast of Louisiana in the Gulf of Mexico. Following the spill, British Petroleum, leaser of the rig, set up a funding institution known as the Gulf of Mexico Research Initiative (GoMRI) to support research and understanding of the spill on the environments and peoples of the gulf. This outreach project was created alongside research of the RECOVER consortium, funded by GoMRI, to communicate what is happening within research labs around the country to understand the effect that the spill had on fish in pelagic and coastal regions of the gulf. The outreach project is composed of a short film (Deepwaters: The Science of a Spill, 18 min) and related outreach materials posted to Instagram (@FishandOilSpills).

The objective of this thesis was to understand the factors that affect the selection of remedial treatments for the complex staining of masonry materials on cultural resources located in environmentally sensitive sites such as Fort Livingston, Louisiana, on the Gulf Coast of the United States and other locations impacted by pollutants including crude oil. After the Deepwater Horizon oil spill in April 2010, the brick-and-tabby Fort was stained by crude oil. The EPA recommends SWA for removal of oil from solid surfaces such as masonry; however, limited research has been conducted into SWA effective for removal of crude oil from masonry, particularly in remote and environmentally sensitive locations. Research was conducted collaboratively at NCPTT and UT-Austin to identify a series of suitable SWA and to develop methods for evaluating SWA effectiveness in the laboratory. Products were selected for laboratory evaluation that do not require long dwell times, are easy to transport to the site, can be applied with portable equipment, produce effluent that can be collected for off-site disposal, and are listed on the EPA-published NCP Product Schedule. Two sets of 36 brick samples each were soiled with crude oil from the Fort. One set of samples was artificially weathered and one set was unweathered prior to being cleaned with selected six SWA. Laboratory evaluation shows that the primary factor affecting cleaner selection for remediation of brick masonry stained by light crude oil is the extent of weathering of oil on the masonry. For light crude oil, such as that spilled in the Gulf, organic solvent-based cleaners may be most effective if cleaning is possible soon after the staining occurs. Aqueous surfactant cleaners are most effective for removing weathered light crude oil from masonry. The following SWA listed in order of performance are recommended for field trials at Fort Livingston: 1. Cytosol; 2. SC-1000; 3. De-Solv-It APC; 4. De-Solv-It Industrial followed by De-Solv-It APC; 5. De-Solv-It Industrial followed by SC-1000. / text

L'application de la Directive Cadre sur l'Eau et l'obligation de surveillance de la qualité d'eau pour la consommation humaine et les activités récréatives ou industrielles, telles que la production d'eau potable, entraînent une forte demande pour des systèmes d'évaluation et de suivi de la qualité de l'eau. Le projet de recherche MIGR'HYCAR (http://www.migrhycar.com) a donc été mis en place pour répondre à un besoin opérationnel et à un défaut d'outils d'aide à la décision adaptés face aux déversements d'hydrocarbures en eaux continentales (rivières, lacs et estuaires) qui représente plus de 50% des déversements accidentels en France. Au cours du projet de recherche MIGR'HYCAR, un modèle mathématique de dérive de nappe d'hydrocarbures, composé d'un modèle lagrangien couplé à un modèle eulérien, a été développé dans la plate-forme hydro-informatique TELEMAC (http://www.opentelemac.org). Le modèle lagrangien décrit le mouvement de la nappe en surface en considérant celle-ci comme un ensemble de particules. Ainsi le modèle développé est capable de modéliser les principaux phénomènes agissant sur une nappe d'hydrocarbures une fois celle-ci déversée : convection, diffusion, échouage, re-largage, étalement, évaporation, dissolution et volatilisation. Bien que le phénomène de dissolution ne concerne qu'un très faible volume d'hydrocarbures, ce processus peut avoir des conséquences importantes du point de vue de la toxicité. Afin de suivre l'évolution du pétrole dissous, un modèle eulérien de suivi de traceurs a été adopté. La quantité de traceur dépend directement de la masse dissoute des particules lagrangiennes. Cette approche permet le suivi des hydrocarbures dissous dans la colonne d'eau. Des cinétiques effectuées en laboratoire ont pour but la calibration du modèle numérique. En complément de cas tests issus de la littérature et de cas réels, des résultats expérimentaux issus d'expérimentations effectuées en canal d'essai doivent permettre de vérifier et valider la qualité des simulations numériques sur des situations où les conditions ne sont que partiellement contrôlées / The application of the European Water Framework Directive on water quality for human consumption and industrial activities creates a need for water quality assessment and monitoring systems. The MIGR'HYCAR research project (http://www.migrhycar.com) was initiated to provide decisional tools for risks connected to oil spills in continental waters (rivers, lakes and estuaries), which represent more than 50% of accidental spills in France. Within the framework of this project, a new numerical oil spill model has been developed, as part of the Telemac hydro-informatics system (see: (http://www.opentelemac.org), by combining Lagrangian and Eulerian methods. The Lagrangian model describes the transport of an oil spill near the free surface. The oil spill model enables to simulate the main processes driving oil plumes: advection, diffusion, oil beaching, oil re-floating, evaporation, dissolution, spreading and volatilization. Though generally considered as a minor process, dissolution is important from the point of view of toxicity. To model dissolved oil in water, an Eulerian advection-diffusion model is used. The fraction of dissolved oil is represented by a passive tracer. This approach is able to follow dissolved hydrocarbons in the water column. Laboratory experiments were conducted to characterise the numerous kinetics of the processes listed above. In addition, meso-scale dynamic experiments in artificial channels and test cases derived from the literature are used to validate the numerical model

Web mashup is a lightweight technology used to integrate data from remote sources without direct access to their databases. As a data consumer, a Web mashup application creates new contents by retrieving data through the Web application programming interface (API) provided by the external sources. As a data provider, the service program publishes its Web API and implements the specified functions. In the project reported by this thesis, we have implemented two Web mashup applications to enhance the Web site oystersentinel.org: the Perkinsus marinus model and the Oil Spill model. Each model overlay geospatial data from a local database on top of a coastal map from Google Maps. In addition, we have designed a Web-based data publishing service. In this experimental system, we illustrated a successful Web mashup interface that allows outside developers to access the data about the local oyster stock assessment.

Abstract The purpose of this study was to explore the impact of the BP Deepwater Horizon oil spill on students of two coastal Louisiana secondary schools. Bronfenbrenner’s (1979) ecological systems theory was used as a framework to understand how exposure, gender, socioeconomic status, and resilience interact to influence the impact of the spill on students. Cross-sectional questionnaires were administered to 155 high school students in May 2012 and 225 middle school students in January 2013 out of 1247 possible for a return rate of about 30%. Results showed that exposure groups differed significantly on students’ Impact of Event Scale (IES; Horowitz, Wilner, & Alvarez, 1979) scores. Students with high exposure to the oil spill had significantly higher IES scores than those with no exposure and low exposure. Logistic regression results indicated that exposure was a significant predictor of higher IES scores and as exposure increased by 1, students were 1.46 times more likely to experience higher impact. Males were found to have significantly higher IES scores than females, with a low effect size. Students did not differ significantly across resilience levels. In the entire sample, lower-SES students did not score significantly different on IES scores than higher-SES students. However, in the high school significant differences were found between SES groups and SES was a significant predictor of higher IES scores. Implications are provided for counselor educators interested in disaster mental health. Conclusions include suggestions for counselors servicing areas affected by the oil spill and how individual and environmental characteristics of students can influence risk factors. Keywords: Disaster mental health, crisis intervention counseling, ecological systems theory, BP Deepwater Horizon oil spill, secondary school students, resilience, risk factors

Derramamentos de petróleo geraram o aumento da atenção de órgãos governamentais e civis quanto a estudos e técnicas para minimizar os danos aos recursos ambientais e socioeconômicos causados por este tipo de acidente. O desenvolvimento de técnicas e os estudos relacionados à prevenção e resposta aos acidentes busca maior eficiência na resposta à contingência e à diminuição dos danos ambientais e socioeconômicos causados na área atingida. A Carta de Sensibilidade Ambiental ao Derramamento de Óleo (Carta SAO) é uma importante ferramenta para a diminuição de danos causados ao ambiente, para o planejamento ambiental na prevenção e na reposta a acidentes em locais de armazenamento e transporte de hidrocarbonetos, tais como dutos, ferrovias, rodovias, etc. Na Carta SAO, para áreas de exposição de sedimentos e rochas sedimentares, procura-se quantificar e qualificar uma determinada área que apresente vulnerabilidade e sensibilidade ao óleo, ou seja, estipular a área e as características intrínsecas do terreno que apresenta alguma probabilidade de ser atingido por óleo, considerando também atividades de resposta. As características dos sedimentos existentes em áreas vulneráveis permitem a determinação de sua sensibilidade, assim buscou-se estudar os parâmetros sedimentares mais influentes na determinação da sensibilidade ambiental do terreno, como a granulometria e seleção, os quais influenciam a porosidade e permeabilidade do terreno, e o cruzamento dessas informações com a declividade do terreno. A fim de testar a eficiência desses parâmetros, o estudo foi aplicado na Bacia do Ribeirão Tamanduá, na região de Cravinhos (SP), por ser interceptada pelo Duto OSBRA e a área de exposição dos arenitos da Formação Botucatu. / Oil spills have resulted in increased awareness among government and private agencies regarding studies and techniques to minimize damages caused by this type of accident to environmental and socio-economic resources. The development of techniques and the studies for prevention and response to accidents is intended to achieve greater effectiveness in dealing with this type of contingency and to decrease the environmental and socio-economic damage to the areas affected by oil spills. The Environmental Sensitivity Index Map for Oil Spills (ESI Map) is an important tool that helps to decrease the damage caused to the environment. It is also useful in planning prevention and responding to accidents in storage areas and in transporting hydrocarbons, in ducts, by rail, road, etc. The purpose of the ESI Map is to quantify and qualify certain areas of exposed sediments and sedimentary rocks that are vulnerable or present sensitivity to oil. In other words, stipulate the area and the intrinsic characteristics of the ground that may receive an oil spill, and considering the response actions. The characteristics of existing sediments in vulnerable areas allow the determination of the area\'s sensitivity. As a result, the study focused on the sedimentary parameters with greatest influence in determining the area\'s environmental sensitivity, such as granulometry and grain selection, which have an influence in the ground\'s porosity and permeability, and cross-referencing this information with the declivity of the ground. In order to test the efficiency of these parameters, the study was implemented in the Bacia do Ribeirão do Tamanduá, in the Cravinhos (SP) region, because it intercepts the OSBRA oil pipeline and an area with exposed sandstone from the Botucatu Formation.