<p>Meiofauna, and especially marine nematodes are common in sediments around the world. Despite very wide ranging distributions in many nematode species, little is presently known about their dispersal mechanisms shaping these patterns. Rafting, and perhaps ballast water transport has been suggested as viable means for nematode long-range transport. On a much smaller scale other processes have been suggested for their dispersal. They generally include some form of passive suspension into the water column and later on a passive, haphazard settling back towards the bottom.</p><p>Small-scale phenomena in nematode dispersal were studied by conducting a series of studies at Askö field station, Trosa Archipelago, Baltic proper. Studied aspects were one case of macrofaunal influence on nematode dispersal rate, using an amphipod, <i>Monoporeia affinis</i> as disturbing agent, and three different studies on mechanisms related to settling. The experiments were conducted both in laboratory and field settings.</p><p>The amphipod <i>Monoporeia affinis</i> did not exert any influence on the dispersal rate in the nematodes. The nematode dispersal was only an effect of time, in the aspect that the more time that past, the more nematodes dispersed from their place of origin. The settling experiments revealed that nematodes do have an active component in their settling behaviour, as they were able to exert influence on the spot where they were to settle. They were able to choose settling spot in response to the food quality of the sediment. It also became evident that contrary to common belief, nematodes are able to extend their presence in the water column far beyond the times that would be predicted considering settling velocities and hydrodynamic conditions alone.</p>

Meiofauna, and especially marine nematodes are common in sediments around the world. Despite very wide ranging distributions in many nematode species, little is presently known about their dispersal mechanisms shaping these patterns. Rafting, and perhaps ballast water transport has been suggested as viable means for nematode long-range transport. On a much smaller scale other processes have been suggested for their dispersal. They generally include some form of passive suspension into the water column and later on a passive, haphazard settling back towards the bottom. Small-scale phenomena in nematode dispersal were studied by conducting a series of studies at Askö field station, Trosa Archipelago, Baltic proper. Studied aspects were one case of macrofaunal influence on nematode dispersal rate, using an amphipod, Monoporeia affinis as disturbing agent, and three different studies on mechanisms related to settling. The experiments were conducted both in laboratory and field settings. The amphipod Monoporeia affinis did not exert any influence on the dispersal rate in the nematodes. The nematode dispersal was only an effect of time, in the aspect that the more time that past, the more nematodes dispersed from their place of origin. The settling experiments revealed that nematodes do have an active component in their settling behaviour, as they were able to exert influence on the spot where they were to settle. They were able to choose settling spot in response to the food quality of the sediment. It also became evident that contrary to common belief, nematodes are able to extend their presence in the water column far beyond the times that would be predicted considering settling velocities and hydrodynamic conditions alone.

The dissertation deals with the Municipal Theatre of Göteborg with special reference to the period between 1967 and 1971, during which the group theatre developed and paved the way for a repertoire of social criticism. The theatre debate is viewed against the background of the socio-economic, ideo­logical, and cultural development of the 1960,s. After describing conditions at the Municipal Theatre of Göteborg under Mats Johansson's management from 1962 onwards, the study concentrates on analysing three group theatre plays produced by Lennart Hjulström: Flotten (spring 1967) by Kent Andersson, Hemmet (autumn 1967) by Kent Andersson and Bengt Bratt, and Sandlådan (autumn 1968) by Kent Andersson. The first play thematizes the ideological confusion of the middle-aged generation, the second the disappointment of the aged at the betrayal of socialist ideals, and the third the manipulative repression of children's education. A series of stagings with strong elements of social criticism caused a long and intense debate in the summer of 1969 about both the repertoire and the internal conditions of the Municipal Theatre. In spring, 1971, Kent Andersson and Bengt Bratt wrote Tillståndet (an ambiguous title meaning both 'condition' and 'permission'), by which the authors intended to ex­pose the repressive tolerance of bourgeois society. This play functions as an evaluation of both the group theatre period and the situation of the theatre as a whole, and it is therefore analysed in a metaperspective. It also functions as a summary of the criticism of the Swedish welfare state. / digitalisering@umu

Submitted by Maria Suzana Diniz (msuzanad@hotmail.com) on 2015-11-11T14:59:12Z No. of bitstreams: 1 arquivototal.pdf: 3268678 bytes, checksum: 87689276ffc0cb54ac6798ac555fe44b (MD5) / Made available in DSpace on 2015-11-11T14:59:12Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 3268678 bytes, checksum: 87689276ffc0cb54ac6798ac555fe44b (MD5) Previous issue date: 2015-03-31 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / The use of unmanned vehicles has been widespread in the areas of safety, environmental exploitation and industry in general and can be tele-operated or autonomous. There are also hybrid systems, in which the vehicle is tele-operated, but endowed with intelligent algorithms that guide the operator and make decisions in the most critical situations. Many authors have studied the kinematics and the dynamics of traction vehicles per mat, with a consensus that the kinematic model can be simplified to most analyzes. Most studies using vehicles pulled by mats near the kinematic model of a wheeled vehicle with differential drive. In this paper we proposed an unconventional approach, in which the kinematic model is treated as a flexible body. Is based on the fact that, in a curvilinear motion, there is a point of contact equivalent to a wheeled vehicle to a given instant. The dynamic model proposed in this work includes the lateral drag force to cause the tracks of curvilinear motions, considering its non-linearity and strong coupling between the mats. Even as contribution of this work, we present the implementation of a control system able to identify the soil adhesion characteristics and perform control strategies for the vehicle from the track/soil interaction. / O uso de veículos não tripulados tem sido difundido nas áreas de segurança, exploração ambiental e indústria em geral, podendo ser teleoperados ou autônomos. Há ainda sistemas híbridos, em que o veículo é teleoperado, porém dotado de algoritmos inteligentes que orientam o operador e tomam decisões em situações mais críticas. Muitos autores têm estudado a cinemática e a dinâmica dos veículos tracionados por esteira, havendo um consenso de que o modelo cinemático pode ser simplificado para a maioria das análises. Grande parte dos trabalhos que utilizam veículos tracionados por esteiras aproximam o modelo cinemático a um veículo de rodas com acionamento diferencial. Neste trabalho foi proposta uma abordagem pouco convencional, em que o modelo cinemático é tratado como um corpo flexível. Baseia-se no fato de que, em um movimento curvilíneo, há um ponto de contato equivalente a um veículo de rodas a um dado instante. O modelo dinâmico proposto neste trabalho inclui a força de arrasto lateral que as esteiras provocam em movimentos curvilíneos, considerando suas não-linearidades, bem como o forte acoplamento entre as esteiras. Ainda como contribuição deste trabalho, apresenta-se o projeto de um sistema de controle capaz de identificar as características de aderência do solo e realizar estratégias de controle para o veículo a partir da interação esteira/solo.

Topic of this Master's thesis is CFD simulations of indoor environment in a pharmacy building. CFD simulation have been done for summer and winter season for two scenarios of HVAC system. Results of simulations are visualized and evaluated.

Softwood is more in demand than hardwood because it is used primarily in the US's largest wood-consuming industry, construction, resulting in increased importation of softwood annually to meet this demand. Hardwood, used for non-structural purposes like furniture and interior designs, is more abundant in US forests. However, some hardwood species are underutilized and undervalued. Cross-laminated timber (CLT) has increased the demand for softwood. A study evaluated the mechanical and physical properties of three underutilized hardwood species (321 yellow poplar, 393 sweetgum, and 262 red oak specimens) for CLT industrial mat manufacturing. The results showed that red oak had a higher density than southern yellow pine, and all species had an average modulus of elasticity greater than the CLT lumber requirement. The study confirmed the viability of these underutilized hardwoods for CLT fabrication, suggesting they could be a suitable substitute for softwood in CLT manufacturing.

Syftet med denna uppsats är att ur ett genreteoretiskt och komparativt perspektiv med hjälp av metoden närläsning undersöka vilka av gotikens genrekonventioner som förekommer i svensk urban fantasy. Romanerna som analyseras är Nene Ormes Udda verklighet (2010), Mats Strandbergs och Sara Bergmark Elfgrens Cirkeln (2011), samt Charlotte Cederlunds Middagsmörker (2016). De gotiska genrekonventioner som används vid analysen är hämtade från Mattias Fyhrs definition av gotik i hans doktorsavhandling De mörka labyrinterna (2003). I diskussionsdelen kombineras dessa med Alastair Fowlers teori ur Kinds of Literature (1982) kring hur olika genrer förefaller ha en rörlighet och flyta in i varandra. Resultatet av analysen visar att samtliga av Fyhrs kategorier finns representerade i de tre romanerna, och skiljer sig något i hur de gestaltas. Följande slutsatser dras: att många likheter förekommer såsom att de drömmar och syner som skildras är vitala för böckernas handlingar, att huvudkaraktären i samtliga analyserade romaner är kvinnlig, utom i Cirkeln där fem perspektiv förekommer varav ett är manligt, att alla romaner har sina egna varianter på fantasytroperna Rådet och Den utvalda, samt att urban fantasy inte går att se som en modern variant av gotiken utan snarare utgör en sentida ättling till gotikgenren.

Wikileaks is using the new technical solutions to mount big leaks, consisting of secret or sensitive information from the government, institutions and business. This might profoundly change the media reality and it certainly means both new opportunities and new challenges for traditional media; the conditions for the journalists, the sources and the news reporting are changing. In this thesis the relationship between Swedish journalists and Wikileaks has been the focus; they both affect each other but the conditions for this relationship is not yet clear. Clearly there is an interdependence, but who really is dependent on the other and to which degree they are dependent on each other is still a question without a given answer. The aim of this thesis has been to discern a new journalism, and how this responds to the theories of Public Journalism and Journalistik 3.0. The main aim has been to examine what Swedish journalist thinks about Wikileaks, what their attitude towards Wikileaks are,  if and how they think that Wikileaks have affected the Swedish journalism. The aim has also been to look at journalism and Wikileaks today and see if it can be said that they are influenced by Public Journalism or Journalism 3.0. To examine this a qualitative study have been used: ten journalists from four of Sweden’s largest newspapers have answered a list of questions. The answers then have been analyzed and compared to Public Journalism and Journalistik 3.0, these theories have been chosen with the help of John Pavliks thoughts about the technical development affect on journalism, and these are aslo used in the analyze. To put the analyze in context and give a understanding for why the aim of the thesis and the questions asked are relevant the first part of the thesis gives a background to journalism, the technical development and the Internet and how they have affected each other. As said this gives context to the empiric, but it is also used in the analyze and in the results, to answer the questions asked. The conclusions that could be drawn from this study is that Swedish journalists have a generally positive attitude to Wikileaks, especially concerning Wikileaks basic idea. They think it is positive that the organization is making it easier to access information that has been secret or sensitive and could help them reveal anomalies. But there is some cautions, concerning the big mass of information published and the scrutiny and screening this material is in need of, something that is expensive. The journalists do not think that Wikileaks yet have affected the journalism in any profound way; they say that the news production and the way they work still is the same. But the organization has shed light on shortcomings in how media is handling sources with digital information. Wikileaks also have caused the launch of other whistleblower-sights. In the future journalists might have a more filtering and screening role, and investigative journalism might be done from behind the desk. Special workgroups might work only with material from Wikileaks and other whistleblower-sights and cooperation between these organizations and journalists might become more frequent. Because Wikileaks allows the audience access to the source material they give the audience more power to influence the news reporting, it might also result that the source material more frequently is being published with the news articles. Regarding Public Journalism and the journalists it could be said that they, at least to some extent, have a similar view at the journalism as Public Journalism. Wikileaks can be seen as an expression of Public Journalism, as they counter too many of the ideals and cornerstones in the theory. Wikileaks also counter a lot of the characteristics found in Journalistik 3.0. According to the answers provided by the journalists it also could be said that a new journalism in large measure up to the characteristics in Journalistik 3.0.  Author: Emma Lavesson  Tutor: Anne-Marie Morhed Aim: The main aim of this thesis has been to examine what Swedish journalists think about Wikileaks, what their attitude towards Wikileaks are, if and how journalists think that Wikileaks have affected the Swedish journalism. The aim has also been to look at journalism and Wikileaks today and see if it can be said that they are influenced by Public Journalism or Journalism 3.0 Method and Material: One qualitative study has been used; a list of questions has been sent to ten different journalists from Sweden’s four biggest newspapers.  The result from this list of questions then have been analyzed and compared to Public Journalism and Journalistik 3.0, theories of the public sphere and sources access or coverage also is used in the analyze. These theories have been chosen with the help of John Pavliks thoughts about how the technical development are affecting the journalism, and his thoughts are also being used in the analyze. To put the study in context a background of journalism, the technical development and the Internet is presented, and this is also used in the analyze and the result. Main results: Swedish journalists have a generally positive attitude to Wikileaks, especially concerning Wikileaks basic idea, the organisation give the journalist easier access to information that hve been bescret or sensitive and that could help them reveal anomilies. The journalists do not think that the organization have affected the journalism in any profound way. But the organisation has shed light on shortcomings in how the media is handeling sources with digital information and caused the launch of other whistleblower-sights. In the future the journalists might have a more filtering and screening role, and investigative journalism might be done from behind the desk. Special workgroups might work only with material from Wikileaks and other whistleblower-sights and cooperation between these organizations and journalists might become more frequent. Regarding Public Journalism and the journalists it could be said that they, at least to some extent, have a similar view at the journalism as Public Journalism. Wikileaks can be seen as an expression of Public Journalism, as they counter too many of the ideals and cornerstones in the theory. Wikileaks also counter a lot of the characteristics found in Journalistik 3.0.

No description available.

[Truncated abstract. Formulae and special characters in this field can only be approximated. See PDF version for accurate reproduction.] Solar salt producers use solar energy to evaporate seawater as it flows through a series of ponds. The Shark Bay Salt solar ponds, at Useless Inlet in Western Australia, vary in salinity from that of seawater to four times seawater, over the pond sequence. Water column photosynthesis and biomass decreased markedly with increasing salinity along the pond sequence, while benthic productivity increased as cyanobacterial mats developed. Correspondingly, net productivity shifted from autotrophy to heterotrophy in the water column and from heterotrophy to autotrophy in the benthos. Both shifts occurred at intermediate salinity in the pond sequence, where there was low production in both the water column and benthos. Within individual ponds, productivity, algal biomass and physico-chemical conditions were relatively constant over the year of study. Transitions between benthic and planktonic production along the pond sequence were driven mostly by direct responses to salinity stress, as well as the formation of a gypsum crust on the pond floors at higher salinity (>120 g kg-1). This transition is similar to that which occurs in saline lakes undergoing anthropogenic salinisation and identifies critical salinities for the restoration of these lakes.