Bangladesh is known for two things: poverty and floods. It is a delta country burdened with draining large amounts of water from surrounding countries and a heavy monsoon season that have caused numerous severe floods with large scale destruction throughout the country. Rapid urbanization and migration have put an immense pressure on the urban centres. Dhaka, the capital city and the largest urban centre of the country, is struggling to provide adequate housing and basic services for the urban poor who are forced to find accommodation in the flood-prone slums and squatter settlements of the city. The alarming rate of population growth further aggravates the problem of environmental degradation which in turn causes more severe floods. As one of the most vulnerable countries for climate change, Bangladesh must work towards providing flood-resilient, safe and affordable housing for all its citizens. My response was the LIFT (Low Income Flood-proof Technology) House: an affordable, flood-resilient housing solution for the low income families of Dhaka. The LIFT house consists of two amphibious structures that are capable of adapting to rising water levels. The amphibious structures float up on buoyant foundations during floods, and return to ground level when water recedes. It is a sustainable, environmentally friendly house that provides all basic services to its residents without connection to the city service systems, through the use of indigenous materials and local skills. This thesis documents the research, design, and construction of the LIFT house with funding provided by the International Development Research Centre (IDRC). The LIFT house was completed on January 2010 in Dhaka, Bangladesh, and has become a symbol for the city’s desire to provide sustainable, low-cost accommodations that are protected from floods.

To respond to the global issue of sea level rise, this thesis examines architectural adaptation strategies by focusing on a low-lying coastal community in Dartmouth Cove in Halifax, Canada. Without a comprehensive adaptation strategy, these residents, along with 75% of the properties surrounding the harbour, will be forced to abandon their homes, resulting in a massive retreat from the coast. This project explores ways to build that can accommodate the future rise in sea level and population growth but are sensitive to the natural environment. It includes designs for urban organizations and amphibious housing blocks. The findings presented in this thesis suggest that amphibious architecture could become a viable solution for coastal environments in urban areas.

The self-fertilizing mangrove rivulus, Kryptolebias marmoratus, is an amphibious fish capable of reversible gill remodelling when moving between aquatic and terrestrial environments. In this thesis I determined how plastic morphological and physiological respiratory traits were integrated during transitions between environments. In two isogenic lineages, I found that behaviour (increased emersion) of individual fish caused gill morphological changes (enlargement of the interlamellar cell mass (ILCM)) that reduced gill surface area. I also found that large ILCMs that formed after 7 d of air exposure increased both gill ventilation and critical oxygen tension (Pcrit) when fish returned to water. These results indicate that large ILCMs reduce aquatic respiratory function, and increased gill ventilation was unable to maintain oxygen uptake at extreme levels of hypoxia. Ultimately, this study highlights the trade-offs in gill structure and function during the transition between air and water, and demonstrates that differences in behaviour can generate morphological variation.

Bangladesh is known for two things: poverty and floods. It is a delta country burdened with draining large amounts of water from surrounding countries and a heavy monsoon season that have caused numerous severe floods with large scale destruction throughout the country. Rapid urbanization and migration have put an immense pressure on the urban centres. Dhaka, the capital city and the largest urban centre of the country, is struggling to provide adequate housing and basic services for the urban poor who are forced to find accommodation in the flood-prone slums and squatter settlements of the city. The alarming rate of population growth further aggravates the problem of environmental degradation which in turn causes more severe floods. As one of the most vulnerable countries for climate change, Bangladesh must work towards providing flood-resilient, safe and affordable housing for all its citizens. My response was the LIFT (Low Income Flood-proof Technology) House: an affordable, flood-resilient housing solution for the low income families of Dhaka. The LIFT house consists of two amphibious structures that are capable of adapting to rising water levels. The amphibious structures float up on buoyant foundations during floods, and return to ground level when water recedes. It is a sustainable, environmentally friendly house that provides all basic services to its residents without connection to the city service systems, through the use of indigenous materials and local skills. This thesis documents the research, design, and construction of the LIFT house with funding provided by the International Development Research Centre (IDRC). The LIFT house was completed on January 2010 in Dhaka, Bangladesh, and has become a symbol for the city’s desire to provide sustainable, low-cost accommodations that are protected from floods.

Thesis (M.S. in Joint Campaign Planning and Strategy)--Joint Forces Staff College, Joint Advanced Warfighting School, 2006. / Vita. "14 April, 2006." "National Defense Univ Norfolk VA"--DTIC cover. Includes bibliographical references (p. 87-90). Also available via the Internet.

In the amphibious fish Polypterus senegalus, focussing on lateral line, vision and electrosensation, we investigated sensory abilities, their interactions, and changes in their effects on locomotor behaviour between aquatic and terrestrial environments. First, we blocked lateral line, vision, or both, and examined effects on locomotion in both environments. Both senses affected both types of locomotion. When fish could see but not feel, variation in several kinematic variables increased, suggesting that sensory integration may affect locomotor control. Next, we assessed response to optokinetic stimuli of varying size and speed. Temporal and spatial visual acuity were both low, as expected in a nocturnal ambush predator. Visual ability in air was much reduced. Finally, we attempted to record electrogenesis in Polypterus, but did not observe the electric discharges reported in a previous study. Future studies might examine changes in sensory function, interaction and importance in behaviour in Polypterus raised in a terrestrial environment.

Planet Earth is moving rapidly towards a point of no return in the climate crisis currently experienced, and while the debate is still raging on wether it is naturally occurring or not the temperature steadily increases - causing melting icecaps, expanding seas and rising oceans. It is the author's view however, that wether the change is man-made or not is irrelevant; as there is no other planet to conduct an experiment on. Therefor it needs to be treated as a problem generated by our species to best ward for the future generations. With rising seas come new problems, many problems that have accidentally been solved by developments in other fields. Take the development of artificial islands on the coast of Norway leading to the creation of entire floating civilisations in South East Asia. It easy to believe the coast lines among the nations of Earth will expand to take advantage of the additional space and comforts of newly created islands - and from this a new lifestyle will be born. A type of life where water plays a bigger role than ever before, and the need for mobility is greater than ever calls for urgent development in the nautical vehicle department. For what kind of vehicle would best be utilised for a life between the land and the sea in the future year of 2050? Throughout the often messy creative process many twists and turns have led the project forwards and backwards. Artistic exploration through sketching has been coupled with critical analysis of brand aesthetics and target markets. Conceptual evaluation and finalisation in 3D software and many, many loops back and forth generated visual material in both 2D and 3D to effectively communicate proposed solutions and artistic expression. The support from Scania and working out of the studio provided valuable insight for the brands future targets, but also the possibilities to collaborate and evaluate concepts along the process with engineers and modellers to ensure a believable final result. The feedback from the design team has strengthened the visual appeal of the vehicle, while the project in turn has helped the brand push its marque into the future in a visual sense. The final result is the Scania SNEKKJA, an amphibious vehicle capable of both land and aquatic travel in one single package adapted for most weather conditions. Pushing Scania further into the field of public transport, this vehicle retains the quality touch of the trucks currently delivered by the brand. It presents a new form language that stays true to the core values and roots of the manufacturer with a modern touch and offers a service provided by the brand as a personal mobility solution for people that want a more premium on demand service. A system that is always available and where convenience is the name of the game.

This diploma thesis is concerned with design of amphibious rescue vehicle. The aim of this work is to design external shape of the vehicle and to create a modul container which fullfills technical, contructional, ergonomic and aestethic features of the vehicle. The work is meant to show variety of new shapes of amphibious vehicles and the advancement from former shapes towards newer and more suitable ones.

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Animals control locomotion through unpredictable and complex habitats using a single locomotor control system. Because of the disparate physical mechanics of different environments, behavioural plasticity, based on the complex interplay of sensory feedback and environmental constraints, is likely essential for animals moving across environments. However, few studies have investigated neuromuscular control across different environments. To fill this gap, I make use of Polypterus senegalus to address four primary objectives: (1) to explore the extent of neuromuscular plasticity across environmental gradients (viscosity and water depth), (2) to generate and test hypotheses about paramount signals for this neuromuscular plasticity, (3) to determine the neuromuscular underpinnings of locomotor transitions, and (4) to determine the neuromuscular control of developmental behavioural plasticity in novel environments. I measured the kinematic and muscle activity response of P. senegalus to gradual changes in environment forces using gradients of water viscosity and water depth. I then used a semi-intact preparation to investigate the existence and role of the mesencephalic locomotor region, a brain region that controls locomotor speed and mode in other species, for neuromuscular control in P. senegalus. Finally, I used chronic terrestrial acclimation and exercise to determine the neuromuscular underpinnings of behavioural and morphological plasticity previously seen in P. senegalus reared in a terrestrial environment. I found that in high viscosity environments, P. senegalus maintain routine swimming speed using a swimming-like muscle activity pattern with increased effort in the posterior body and the pectoral fin to generate exaggerated swimming kinematics. These results suggest that sensory feedback is essential to accommodating this novel environment. I then demonstrated that axial red muscle always carried an anterior-to-posterior wave of muscle activity in a series of discrete water depths across the aquatic-terrestrial transition. Thus, discrete changes in axial kinematics and pectoral fin coordination across this transtion are likely the result of sensory feedback and mechanical constraints of the environment. I then performed the first experiments searching for the mesencephalic locomotor region in P. senegalus and demonstrated the presence of a putative mesencephalic locomotor region that controls the frequency of swimming-like movements but does not appear to control pectoral fin movements or the transition to walking. Finally, I exposed P. senegalus to chronic terrestrial acclimation and exercise. My results suggested that while both terrestrial acclimation and exercise generate behavioural plasticity, the former results in a larger plastic repsonse. Subtle changes in the duration and timing of pectoral fin muscle activity helped reduce friction between the body and pectoral fin and the substrate below, potentially resulting in the more “effective” walking gait developed by terrestrial acclimated fish. My thesis therefore sheds light on the essential interplay of sensory feedback and mechanical constraint for generating behavioural plasticity on acute and chronic timescales, highlights the potential value of such plasticity for organismal performance and evolution, and develops study systems and experimental frameworks for further investigating the nature of plastic locomotor control in amphibious fish.