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576 Uppsatser om Frisby Davis distance stereotest - Sida 10 av 39
Brandrelaterade insekters lokala artrikedom i förhållande till olika miljövariabler : Fokus på betydelsen av konnektivitet på brandfält i boreal skog i Västerbottens län
The last century, forest fires have decreased in frequency due to efficient fire-suppression along with the growth of the industrial forestry. Since 1990, fire has been reintroduced under controlled forms to recreate burnt habitats. Many species that are dependent on, or benefits from, forest fires have increased since fire was reintroduced. The importance of connectivity is often addressed in ecological research. This is particularly important for species dependent on short-lived habitats such as burnt forests.
Didaktiska arter
The study intends to find easily recognizable indicator species for water quality in the constructed wetland of Flemingsbergsviken. The study is relevant since indicator species can be difficult to determine for common people. Easily recognizable indicator species could improve dialogue between the scientific community, administrative authorities and the general public. Such species could be used in education systems, associations or in information campaigns. Therefore, I have chosen to refer to these species as didactical species.
TOMO Hugglink
Tomo Hugglink (TOMO Skog) is an innovation for harvest and transport of biofuels. The system consists of a truck, a chipping unit and crane mounted on a link and a wood chip trailer. The system works in such a way that the chipping unit is disconnected and placed on the site and wood chips are loaded directly into the wood chip trailer.The aim of this study was:- To examine the performance of the TOMO Hugglink system under different conditions such as the size, placement and quality of the pile.- To calculate the cost per raw ton for two vehicle combinations at different transport distances and to examine the effect of a reduction in set-up time and an increase in load weight.- To identify possible improvements with the TOMO Hugglink system.A time study was conducted within the thesis work to make it possible to determine production and time consumption. In the subsequent economic analysis the cost per tone at different transport distances was calculated for two different lorry concepts. Furthermore the effect of a reduction in set-up time and an increase in load weight was calculated.Under current conditions the utilization of the chipper is low and only 29 % of the total system time is occupied by chipping.
Klövviltets nyttjande av foderraps på viltåker och betespåverkan på angränsande skog
Today we have more game species than ever before in our landscape, both regarding number of species and number of individuals. The increasing number of wild species is an increase in game recourse for the countryside. The increase of game species, however, has negative effects on forests and agriculture land. The negative effects for forestry are damages on economic important trees, due to losses in production and quality. However there are ways to decrease the damage on valuable and important trees.
Lämpliga områden för vindkraftsetablering på land i Norrbottens län
Wind power is becoming an increasingly important source of energy. There are several national and international goals set to increase to amount of renewable energy, and in order to meet these goals, the wind power production plays an important part and the establishment of new wind power farms are required. The Swedish national project Riksintresse Vindbruk has appointed areas in Sweden suitable for wind power, mainly when looking at the physical wind conditions of the area. In this study, I aim to define suitable areas for wind power establishment in Norrbottens län. In order to reach this goal, a critical regional method was developed and completed using GIS.
KOLLEKTIVTRAFIKENS GEOGRAFISKA VARIATIONER I TID OCH KOSTNAD ? HUR PÅVERKAR DETTA BOSTADSPRISERNA? : Fallstudie Uppsala län med pendlingsomland
The distance between home and work has increased in recent decades. By the development of infrastructure and public transport, jobs farther from home have become more accessible and this development has in turn increased commuting. Commuting travellers often pass over administrative boundaries which often serve as borders for public transport pricing. Also the market control prices. Research shows that travel times and costs significantly affect commuting choice.
Empati i skolan: en studie om hur skolan kan hjälpa elever
att utveckla empati
Syftet med denna studie var att undersöka hur skolan kan hjälpa elever att utveckla empati. Vi undersökte detta med hjälp av kvalitativa intervjuer med nio pedagoger. Syftet med intervjuerna var att ta del av deras erfarenheter kring ämnet. Vi var även intresserade av att ta reda på vad pedagogerna ansåg att ordet empati betyder och hur de tyckte att empati uttrycker sig hos barn. Forskningen säger att grunden för barnens empatiutveckling läggs i det tidiga samspelet mellan barnen och föräldrarna men att skolan ändå har stora möjligheter att påverka denna utveckling.
Assistansrobot "Slangaren"
This project is a step towards automatic firefighting. The goal is to decrease the number of personal injuries by replacing the human firefighter with robots or similar technical tools. Especially in very hostile environments due to risk of explosions or building collapse. A robot is easy to replace and can be maneuvered from a safe distance. The idea of the project comes from the company Drones Networking which aims for developing a totally autonomous firefighting system.
The shift in forest and tree limits in Troms County - with a main focus on temperature and herbivores
To better understand how various factors affect the establishment of forest and trees around the tree line-ecotone, this study was conducted in Troms County, Norway. The altitude of different forest and tree limits together with the surrounding vegetation type were collected during August 2011. Comparisons of the collected data were made with previously collected data from the same sites conducted 1914 and 1915. On average the forest limit has expanded with 26 meters in altitude, however, an expansion is not statistically significant for the whole area. The tree limit has significantly expanded in altitude.
Konstruktion av tvåhjulig balanserande robot
This report discusses the development of an autonomous system that can travel a distance of atleast 30 meters on two wheels. The system, the robot, detects black lines and stops if one isdetected. A remote control can be used to start and stop the robot. The robot is constructed ofmainly steel with smaller, more detailed, parts in plastic. A significant amout of time has beenused to enable the robot to balance on its own.
Hotbild för ädellav Megalaria grossa i Uppland och på Gotland :
Megalaria grossa is classified as Near treatened on the Swedish Red List. It is also a so called signals spieces, e. g. a spieces that function as an indicator, signalling a forest that is worthy of protection. The aim of this study was to clarify the status at selected localities in the province of Uppland and Gotland.
Att ta på allvar? Om självmedvetenhet hos Bob Hansson
Based on Theodor W. Adorno's theories about the relation between society and lyrics, and critical theories about postmodernism, it can be seen in Bob Hansson's lyrics how he tries on the one hand to write in a modernistic tradition but, on the other, is very influenced by postmodernism which results in a conspicuous self-distance and self-contempt..
Effekter av "Billigaste väg" för Stora Enso Skogs transportverksamhet :
Transportation constitutes a large part of the forest industry's raw material costs. Transport also contributes a significant proportion of the carbon dioxide emissions. In order to reduce both the cost and environmental impact different types of decision support are required. These, in turn, require extensive information about the road network and correct information on road path selection and transport distances. In the development of national road data base for forestry (SNVDB) a road selection application has been included.
Nina på nätet : En netnografisk studie av politisk kommunikation i de sociala medierna
The Swedish election year of 2010 has just begun and the political actors are mobilizing their communication efforts to win the votes of the public. The political campaigns of 2010 have the potential to be the first where a new channel for political communication has the potential to make a difference ? the social media. This paper aims to describe in what ways a Member of Parliament, Nina Larsson (FP), together with the PR-agency Hello Clarice are using social media to conduct political campaigning on the web. It also aims to study if the professional consultants of Hello Clarice have any influence over Nina Larsson?s political communication.The theoretical framework which is the base for this study are theories of an extended public sphere in the age of mediation.
Långdistanslöpning och artros : En systematisk litteraturstudie
Sammanfattning Syfte och frågeställningarSyftet med denna studie var att sammanställa kvalitet på och resultat av studier som undersökt om långdistanslöpning ger artros i höft-, knä- eller fotleder. Finns det vetenskaplig evidens för att långdistanslöpning ger artros i höft-, knä- eller fotleder? Vilka styrkor och svagheter har de studier som försökt utröna om samband finns mellan långdistanslöpning och artros i höft-, knä- eller fotleder? MetodSökning av litteratur utfördes i PubMed, CINAHL, Cochrane Library och PEDro. Detta resulterade i att tio artiklar inkluderades för närmare granskning och sammanställning. Utifrån artiklarnas sammantagna bevisvärde poängsattes och graderades artiklarna efter evidensnivå enligt Statens Beredning för medicinsk Utvärderings (SBU) granskningsmallar för kohortstudier med kontrollgrupper. ResultatEndast en av tio studier visar ett positivt samband mellan långdistanslöpning och artros i höft-, knä- eller fotleder, i detta fall höftledsartros.